/* sv.c * * Copyright (c) 1991-2000, Larry Wall * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. * */ /* * "I wonder what the Entish is for 'yes' and 'no'," he thought. */ #include "EXTERN.h" #define PERL_IN_SV_C #include "perl.h" #define FCALL *f #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_force_normal(sv) static void do_report_used(pTHXo_ SV *sv); static void do_clean_objs(pTHXo_ SV *sv); #ifndef DISABLE_DESTRUCTOR_KLUDGE static void do_clean_named_objs(pTHXo_ SV *sv); #endif static void do_clean_all(pTHXo_ SV *sv); #ifdef PURIFY #define new_SV(p) \ STMT_START { \ LOCK_SV_MUTEX; \ (p) = (SV*)safemalloc(sizeof(SV)); \ reg_add(p); \ UNLOCK_SV_MUTEX; \ SvANY(p) = 0; \ SvREFCNT(p) = 1; \ SvFLAGS(p) = 0; \ } STMT_END #define del_SV(p) \ STMT_START { \ LOCK_SV_MUTEX; \ reg_remove(p); \ Safefree((char*)(p)); \ UNLOCK_SV_MUTEX; \ } STMT_END static SV **registry; static I32 registry_size; #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size)) #define REG_REPLACE(sv,a,b) \ STMT_START { \ void* p = sv->sv_any; \ I32 h = REGHASH(sv, registry_size); \ I32 i = h; \ while (registry[i] != (a)) { \ if (++i >= registry_size) \ i = 0; \ if (i == h) \ Perl_die(aTHX_ "SV registry bug"); \ } \ registry[i] = (b); \ } STMT_END #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv) #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv) STATIC void S_reg_add(pTHX_ SV *sv) { if (PL_sv_count >= (registry_size >> 1)) { SV **oldreg = registry; I32 oldsize = registry_size; registry_size = registry_size ? ((registry_size << 2) + 1) : 2037; Newz(707, registry, registry_size, SV*); if (oldreg) { I32 i; for (i = 0; i < oldsize; ++i) { SV* oldsv = oldreg[i]; if (oldsv) REG_ADD(oldsv); } Safefree(oldreg); } } REG_ADD(sv); ++PL_sv_count; } STATIC void S_reg_remove(pTHX_ SV *sv) { REG_REMOVE(sv); --PL_sv_count; } STATIC void S_visit(pTHX_ SVFUNC_t f) { I32 i; for (i = 0; i < registry_size; ++i) { SV* sv = registry[i]; if (sv && SvTYPE(sv) != SVTYPEMASK) (*f)(sv); } } void Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) { if (!(flags & SVf_FAKE)) Safefree(ptr); } #else /* ! PURIFY */ /* * "A time to plant, and a time to uproot what was planted..." */ #define plant_SV(p) \ STMT_START { \ SvANY(p) = (void *)PL_sv_root; \ SvFLAGS(p) = SVTYPEMASK; \ PL_sv_root = (p); \ --PL_sv_count; \ } STMT_END /* sv_mutex must be held while calling uproot_SV() */ #define uproot_SV(p) \ STMT_START { \ (p) = PL_sv_root; \ PL_sv_root = (SV*)SvANY(p); \ ++PL_sv_count; \ } STMT_END #define new_SV(p) \ STMT_START { \ LOCK_SV_MUTEX; \ if (PL_sv_root) \ uproot_SV(p); \ else \ (p) = more_sv(); \ UNLOCK_SV_MUTEX; \ SvANY(p) = 0; \ SvREFCNT(p) = 1; \ SvFLAGS(p) = 0; \ } STMT_END #ifdef DEBUGGING #define del_SV(p) \ STMT_START { \ LOCK_SV_MUTEX; \ if (PL_debug & 32768) \ del_sv(p); \ else \ plant_SV(p); \ UNLOCK_SV_MUTEX; \ } STMT_END STATIC void S_del_sv(pTHX_ SV *p) { if (PL_debug & 32768) { SV* sva; SV* sv; SV* svend; int ok = 0; for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { sv = sva + 1; svend = &sva[SvREFCNT(sva)]; if (p >= sv && p < svend) ok = 1; } if (!ok) { if (ckWARN_d(WARN_INTERNAL)) Perl_warner(aTHX_ WARN_INTERNAL, "Attempt to free non-arena SV: 0x%"UVxf, PTR2UV(p)); return; } } plant_SV(p); } #else /* ! DEBUGGING */ #define del_SV(p) plant_SV(p) #endif /* DEBUGGING */ void Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) { SV* sva = (SV*)ptr; register SV* sv; register SV* svend; Zero(sva, size, char); /* The first SV in an arena isn't an SV. */ SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ SvFLAGS(sva) = flags; /* FAKE if not to be freed */ PL_sv_arenaroot = sva; PL_sv_root = sva + 1; svend = &sva[SvREFCNT(sva) - 1]; sv = sva + 1; while (sv < svend) { SvANY(sv) = (void *)(SV*)(sv + 1); SvFLAGS(sv) = SVTYPEMASK; sv++; } SvANY(sv) = 0; SvFLAGS(sv) = SVTYPEMASK; } /* sv_mutex must be held while calling more_sv() */ STATIC SV* S_more_sv(pTHX) { register SV* sv; if (PL_nice_chunk) { sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); PL_nice_chunk = Nullch; } else { char *chunk; /* must use New here to match call to */ New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */ sv_add_arena(chunk, 1008, 0); } uproot_SV(sv); return sv; } STATIC void S_visit(pTHX_ SVFUNC_t f) { SV* sva; SV* sv; register SV* svend; for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { svend = &sva[SvREFCNT(sva)]; for (sv = sva + 1; sv < svend; ++sv) { if (SvTYPE(sv) != SVTYPEMASK) (FCALL)(aTHXo_ sv); } } } #endif /* PURIFY */ void Perl_sv_report_used(pTHX) { visit(do_report_used); } void Perl_sv_clean_objs(pTHX) { PL_in_clean_objs = TRUE; visit(do_clean_objs); #ifndef DISABLE_DESTRUCTOR_KLUDGE /* some barnacles may yet remain, clinging to typeglobs */ visit(do_clean_named_objs); #endif PL_in_clean_objs = FALSE; } void Perl_sv_clean_all(pTHX) { PL_in_clean_all = TRUE; visit(do_clean_all); PL_in_clean_all = FALSE; } void Perl_sv_free_arenas(pTHX) { SV* sva; SV* svanext; /* Free arenas here, but be careful about fake ones. (We assume contiguity of the fake ones with the corresponding real ones.) */ for (sva = PL_sv_arenaroot; sva; sva = svanext) { svanext = (SV*) SvANY(sva); while (svanext && SvFAKE(svanext)) svanext = (SV*) SvANY(svanext); if (!SvFAKE(sva)) Safefree((void *)sva); } if (PL_nice_chunk) Safefree(PL_nice_chunk); PL_nice_chunk = Nullch; PL_nice_chunk_size = 0; PL_sv_arenaroot = 0; PL_sv_root = 0; } void Perl_report_uninit(pTHX) { if (PL_op) Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit, " in ", PL_op_desc[PL_op->op_type]); else Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit, "", ""); } STATIC XPVIV* S_new_xiv(pTHX) { IV* xiv; LOCK_SV_MUTEX; if (!PL_xiv_root) more_xiv(); xiv = PL_xiv_root; /* * See comment in more_xiv() -- RAM. */ PL_xiv_root = *(IV**)xiv; UNLOCK_SV_MUTEX; return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); } STATIC void S_del_xiv(pTHX_ XPVIV *p) { IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); LOCK_SV_MUTEX; *(IV**)xiv = PL_xiv_root; PL_xiv_root = xiv; UNLOCK_SV_MUTEX; } STATIC void S_more_xiv(pTHX) { register IV* xiv; register IV* xivend; XPV* ptr; New(705, ptr, 1008/sizeof(XPV), XPV); ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ PL_xiv_arenaroot = ptr; /* to keep Purify happy */ xiv = (IV*) ptr; xivend = &xiv[1008 / sizeof(IV) - 1]; xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ PL_xiv_root = xiv; while (xiv < xivend) { *(IV**)xiv = (IV *)(xiv + 1); xiv++; } *(IV**)xiv = 0; } STATIC XPVNV* S_new_xnv(pTHX) { NV* xnv; LOCK_SV_MUTEX; if (!PL_xnv_root) more_xnv(); xnv = PL_xnv_root; PL_xnv_root = *(NV**)xnv; UNLOCK_SV_MUTEX; return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); } STATIC void S_del_xnv(pTHX_ XPVNV *p) { NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); LOCK_SV_MUTEX; *(NV**)xnv = PL_xnv_root; PL_xnv_root = xnv; UNLOCK_SV_MUTEX; } STATIC void S_more_xnv(pTHX) { register NV* xnv; register NV* xnvend; New(711, xnv, 1008/sizeof(NV), NV); xnvend = &xnv[1008 / sizeof(NV) - 1]; xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */ PL_xnv_root = xnv; while (xnv < xnvend) { *(NV**)xnv = (NV*)(xnv + 1); xnv++; } *(NV**)xnv = 0; } STATIC XRV* S_new_xrv(pTHX) { XRV* xrv; LOCK_SV_MUTEX; if (!PL_xrv_root) more_xrv(); xrv = PL_xrv_root; PL_xrv_root = (XRV*)xrv->xrv_rv; UNLOCK_SV_MUTEX; return xrv; } STATIC void S_del_xrv(pTHX_ XRV *p) { LOCK_SV_MUTEX; p->xrv_rv = (SV*)PL_xrv_root; PL_xrv_root = p; UNLOCK_SV_MUTEX; } STATIC void S_more_xrv(pTHX) { register XRV* xrv; register XRV* xrvend; New(712, PL_xrv_root, 1008/sizeof(XRV), XRV); xrv = PL_xrv_root; xrvend = &xrv[1008 / sizeof(XRV) - 1]; while (xrv < xrvend) { xrv->xrv_rv = (SV*)(xrv + 1); xrv++; } xrv->xrv_rv = 0; } STATIC XPV* S_new_xpv(pTHX) { XPV* xpv; LOCK_SV_MUTEX; if (!PL_xpv_root) more_xpv(); xpv = PL_xpv_root; PL_xpv_root = (XPV*)xpv->xpv_pv; UNLOCK_SV_MUTEX; return xpv; } STATIC void S_del_xpv(pTHX_ XPV *p) { LOCK_SV_MUTEX; p->xpv_pv = (char*)PL_xpv_root; PL_xpv_root = p; UNLOCK_SV_MUTEX; } STATIC void S_more_xpv(pTHX) { register XPV* xpv; register XPV* xpvend; New(713, PL_xpv_root, 1008/sizeof(XPV), XPV); xpv = PL_xpv_root; xpvend = &xpv[1008 / sizeof(XPV) - 1]; while (xpv < xpvend) { xpv->xpv_pv = (char*)(xpv + 1); xpv++; } xpv->xpv_pv = 0; } STATIC XPVIV* S_new_xpviv(pTHX) { XPVIV* xpviv; LOCK_SV_MUTEX; if (!PL_xpviv_root) more_xpviv(); xpviv = PL_xpviv_root; PL_xpviv_root = (XPVIV*)xpviv->xpv_pv; UNLOCK_SV_MUTEX; return xpviv; } STATIC void S_del_xpviv(pTHX_ XPVIV *p) { LOCK_SV_MUTEX; p->xpv_pv = (char*)PL_xpviv_root; PL_xpviv_root = p; UNLOCK_SV_MUTEX; } STATIC void S_more_xpviv(pTHX) { register XPVIV* xpviv; register XPVIV* xpvivend; New(714, PL_xpviv_root, 1008/sizeof(XPVIV), XPVIV); xpviv = PL_xpviv_root; xpvivend = &xpviv[1008 / sizeof(XPVIV) - 1]; while (xpviv < xpvivend) { xpviv->xpv_pv = (char*)(xpviv + 1); xpviv++; } xpviv->xpv_pv = 0; } STATIC XPVNV* S_new_xpvnv(pTHX) { XPVNV* xpvnv; LOCK_SV_MUTEX; if (!PL_xpvnv_root) more_xpvnv(); xpvnv = PL_xpvnv_root; PL_xpvnv_root = (XPVNV*)xpvnv->xpv_pv; UNLOCK_SV_MUTEX; return xpvnv; } STATIC void S_del_xpvnv(pTHX_ XPVNV *p) { LOCK_SV_MUTEX; p->xpv_pv = (char*)PL_xpvnv_root; PL_xpvnv_root = p; UNLOCK_SV_MUTEX; } STATIC void S_more_xpvnv(pTHX) { register XPVNV* xpvnv; register XPVNV* xpvnvend; New(715, PL_xpvnv_root, 1008/sizeof(XPVNV), XPVNV); xpvnv = PL_xpvnv_root; xpvnvend = &xpvnv[1008 / sizeof(XPVNV) - 1]; while (xpvnv < xpvnvend) { xpvnv->xpv_pv = (char*)(xpvnv + 1); xpvnv++; } xpvnv->xpv_pv = 0; } STATIC XPVCV* S_new_xpvcv(pTHX) { XPVCV* xpvcv; LOCK_SV_MUTEX; if (!PL_xpvcv_root) more_xpvcv(); xpvcv = PL_xpvcv_root; PL_xpvcv_root = (XPVCV*)xpvcv->xpv_pv; UNLOCK_SV_MUTEX; return xpvcv; } STATIC void S_del_xpvcv(pTHX_ XPVCV *p) { LOCK_SV_MUTEX; p->xpv_pv = (char*)PL_xpvcv_root; PL_xpvcv_root = p; UNLOCK_SV_MUTEX; } STATIC void S_more_xpvcv(pTHX) { register XPVCV* xpvcv; register XPVCV* xpvcvend; New(716, PL_xpvcv_root, 1008/sizeof(XPVCV), XPVCV); xpvcv = PL_xpvcv_root; xpvcvend = &xpvcv[1008 / sizeof(XPVCV) - 1]; while (xpvcv < xpvcvend) { xpvcv->xpv_pv = (char*)(xpvcv + 1); xpvcv++; } xpvcv->xpv_pv = 0; } STATIC XPVAV* S_new_xpvav(pTHX) { XPVAV* xpvav; LOCK_SV_MUTEX; if (!PL_xpvav_root) more_xpvav(); xpvav = PL_xpvav_root; PL_xpvav_root = (XPVAV*)xpvav->xav_array; UNLOCK_SV_MUTEX; return xpvav; } STATIC void S_del_xpvav(pTHX_ XPVAV *p) { LOCK_SV_MUTEX; p->xav_array = (char*)PL_xpvav_root; PL_xpvav_root = p; UNLOCK_SV_MUTEX; } STATIC void S_more_xpvav(pTHX) { register XPVAV* xpvav; register XPVAV* xpvavend; New(717, PL_xpvav_root, 1008/sizeof(XPVAV), XPVAV); xpvav = PL_xpvav_root; xpvavend = &xpvav[1008 / sizeof(XPVAV) - 1]; while (xpvav < xpvavend) { xpvav->xav_array = (char*)(xpvav + 1); xpvav++; } xpvav->xav_array = 0; } STATIC XPVHV* S_new_xpvhv(pTHX) { XPVHV* xpvhv; LOCK_SV_MUTEX; if (!PL_xpvhv_root) more_xpvhv(); xpvhv = PL_xpvhv_root; PL_xpvhv_root = (XPVHV*)xpvhv->xhv_array; UNLOCK_SV_MUTEX; return xpvhv; } STATIC void S_del_xpvhv(pTHX_ XPVHV *p) { LOCK_SV_MUTEX; p->xhv_array = (char*)PL_xpvhv_root; PL_xpvhv_root = p; UNLOCK_SV_MUTEX; } STATIC void S_more_xpvhv(pTHX) { register XPVHV* xpvhv; register XPVHV* xpvhvend; New(718, PL_xpvhv_root, 1008/sizeof(XPVHV), XPVHV); xpvhv = PL_xpvhv_root; xpvhvend = &xpvhv[1008 / sizeof(XPVHV) - 1]; while (xpvhv < xpvhvend) { xpvhv->xhv_array = (char*)(xpvhv + 1); xpvhv++; } xpvhv->xhv_array = 0; } STATIC XPVMG* S_new_xpvmg(pTHX) { XPVMG* xpvmg; LOCK_SV_MUTEX; if (!PL_xpvmg_root) more_xpvmg(); xpvmg = PL_xpvmg_root; PL_xpvmg_root = (XPVMG*)xpvmg->xpv_pv; UNLOCK_SV_MUTEX; return xpvmg; } STATIC void S_del_xpvmg(pTHX_ XPVMG *p) { LOCK_SV_MUTEX; p->xpv_pv = (char*)PL_xpvmg_root; PL_xpvmg_root = p; UNLOCK_SV_MUTEX; } STATIC void S_more_xpvmg(pTHX) { register XPVMG* xpvmg; register XPVMG* xpvmgend; New(719, PL_xpvmg_root, 1008/sizeof(XPVMG), XPVMG); xpvmg = PL_xpvmg_root; xpvmgend = &xpvmg[1008 / sizeof(XPVMG) - 1]; while (xpvmg < xpvmgend) { xpvmg->xpv_pv = (char*)(xpvmg + 1); xpvmg++; } xpvmg->xpv_pv = 0; } STATIC XPVLV* S_new_xpvlv(pTHX) { XPVLV* xpvlv; LOCK_SV_MUTEX; if (!PL_xpvlv_root) more_xpvlv(); xpvlv = PL_xpvlv_root; PL_xpvlv_root = (XPVLV*)xpvlv->xpv_pv; UNLOCK_SV_MUTEX; return xpvlv; } STATIC void S_del_xpvlv(pTHX_ XPVLV *p) { LOCK_SV_MUTEX; p->xpv_pv = (char*)PL_xpvlv_root; PL_xpvlv_root = p; UNLOCK_SV_MUTEX; } STATIC void S_more_xpvlv(pTHX) { register XPVLV* xpvlv; register XPVLV* xpvlvend; New(720, PL_xpvlv_root, 1008/sizeof(XPVLV), XPVLV); xpvlv = PL_xpvlv_root; xpvlvend = &xpvlv[1008 / sizeof(XPVLV) - 1]; while (xpvlv < xpvlvend) { xpvlv->xpv_pv = (char*)(xpvlv + 1); xpvlv++; } xpvlv->xpv_pv = 0; } STATIC XPVBM* S_new_xpvbm(pTHX) { XPVBM* xpvbm; LOCK_SV_MUTEX; if (!PL_xpvbm_root) more_xpvbm(); xpvbm = PL_xpvbm_root; PL_xpvbm_root = (XPVBM*)xpvbm->xpv_pv; UNLOCK_SV_MUTEX; return xpvbm; } STATIC void S_del_xpvbm(pTHX_ XPVBM *p) { LOCK_SV_MUTEX; p->xpv_pv = (char*)PL_xpvbm_root; PL_xpvbm_root = p; UNLOCK_SV_MUTEX; } STATIC void S_more_xpvbm(pTHX) { register XPVBM* xpvbm; register XPVBM* xpvbmend; New(721, PL_xpvbm_root, 1008/sizeof(XPVBM), XPVBM); xpvbm = PL_xpvbm_root; xpvbmend = &xpvbm[1008 / sizeof(XPVBM) - 1]; while (xpvbm < xpvbmend) { xpvbm->xpv_pv = (char*)(xpvbm + 1); xpvbm++; } xpvbm->xpv_pv = 0; } #ifdef PURIFY #define new_XIV() (void*)safemalloc(sizeof(XPVIV)) #define del_XIV(p) Safefree((char*)p) #else #define new_XIV() (void*)new_xiv() #define del_XIV(p) del_xiv((XPVIV*) p) #endif #ifdef PURIFY #define new_XNV() (void*)safemalloc(sizeof(XPVNV)) #define del_XNV(p) Safefree((char*)p) #else #define new_XNV() (void*)new_xnv() #define del_XNV(p) del_xnv((XPVNV*) p) #endif #ifdef PURIFY #define new_XRV() (void*)safemalloc(sizeof(XRV)) #define del_XRV(p) Safefree((char*)p) #else #define new_XRV() (void*)new_xrv() #define del_XRV(p) del_xrv((XRV*) p) #endif #ifdef PURIFY #define new_XPV() (void*)safemalloc(sizeof(XPV)) #define del_XPV(p) Safefree((char*)p) #else #define new_XPV() (void*)new_xpv() #define del_XPV(p) del_xpv((XPV *)p) #endif #ifdef PURIFY # define my_safemalloc(s) safemalloc(s) # define my_safefree(s) safefree(s) #else STATIC void* S_my_safemalloc(MEM_SIZE size) { char *p; New(717, p, size, char); return (void*)p; } # define my_safefree(s) Safefree(s) #endif #ifdef PURIFY #define new_XPVIV() (void*)safemalloc(sizeof(XPVIV)) #define del_XPVIV(p) Safefree((char*)p) #else #define new_XPVIV() (void*)new_xpviv() #define del_XPVIV(p) del_xpviv((XPVIV *)p) #endif #ifdef PURIFY #define new_XPVNV() (void*)safemalloc(sizeof(XPVNV)) #define del_XPVNV(p) Safefree((char*)p) #else #define new_XPVNV() (void*)new_xpvnv() #define del_XPVNV(p) del_xpvnv((XPVNV *)p) #endif #ifdef PURIFY #define new_XPVCV() (void*)safemalloc(sizeof(XPVCV)) #define del_XPVCV(p) Safefree((char*)p) #else #define new_XPVCV() (void*)new_xpvcv() #define del_XPVCV(p) del_xpvcv((XPVCV *)p) #endif #ifdef PURIFY #define new_XPVAV() (void*)safemalloc(sizeof(XPVAV)) #define del_XPVAV(p) Safefree((char*)p) #else #define new_XPVAV() (void*)new_xpvav() #define del_XPVAV(p) del_xpvav((XPVAV *)p) #endif #ifdef PURIFY #define new_XPVHV() (void*)safemalloc(sizeof(XPVHV)) #define del_XPVHV(p) Safefree((char*)p) #else #define new_XPVHV() (void*)new_xpvhv() #define del_XPVHV(p) del_xpvhv((XPVHV *)p) #endif #ifdef PURIFY #define new_XPVMG() (void*)safemalloc(sizeof(XPVMG)) #define del_XPVMG(p) Safefree((char*)p) #else #define new_XPVMG() (void*)new_xpvmg() #define del_XPVMG(p) del_xpvmg((XPVMG *)p) #endif #ifdef PURIFY #define new_XPVLV() (void*)safemalloc(sizeof(XPVLV)) #define del_XPVLV(p) Safefree((char*)p) #else #define new_XPVLV() (void*)new_xpvlv() #define del_XPVLV(p) del_xpvlv((XPVLV *)p) #endif #define new_XPVGV() (void*)my_safemalloc(sizeof(XPVGV)) #define del_XPVGV(p) my_safefree((char*)p) #ifdef PURIFY #define new_XPVBM() (void*)safemalloc(sizeof(XPVBM)) #define del_XPVBM(p) Safefree((char*)p) #else #define new_XPVBM() (void*)new_xpvbm() #define del_XPVBM(p) del_xpvbm((XPVBM *)p) #endif #define new_XPVFM() (void*)my_safemalloc(sizeof(XPVFM)) #define del_XPVFM(p) my_safefree((char*)p) #define new_XPVIO() (void*)my_safemalloc(sizeof(XPVIO)) #define del_XPVIO(p) my_safefree((char*)p) /* =for apidoc sv_upgrade Upgrade an SV to a more complex form. Use C. See C. =cut */ bool Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt) { char* pv; U32 cur; U32 len; IV iv; NV nv; MAGIC* magic; HV* stash; if (SvTYPE(sv) == mt) return TRUE; if (mt < SVt_PVIV) (void)SvOOK_off(sv); switch (SvTYPE(sv)) { case SVt_NULL: pv = 0; cur = 0; len = 0; iv = 0; nv = 0.0; magic = 0; stash = 0; break; case SVt_IV: pv = 0; cur = 0; len = 0; iv = SvIVX(sv); nv = (NV)SvIVX(sv); del_XIV(SvANY(sv)); magic = 0; stash = 0; if (mt == SVt_NV) mt = SVt_PVNV; else if (mt < SVt_PVIV) mt = SVt_PVIV; break; case SVt_NV: pv = 0; cur = 0; len = 0; nv = SvNVX(sv); iv = I_V(nv); magic = 0; stash = 0; del_XNV(SvANY(sv)); SvANY(sv) = 0; if (mt < SVt_PVNV) mt = SVt_PVNV; break; case SVt_RV: pv = (char*)SvRV(sv); cur = 0; len = 0; iv = PTR2IV(pv); nv = PTR2NV(pv); del_XRV(SvANY(sv)); magic = 0; stash = 0; break; case SVt_PV: pv = SvPVX(sv); cur = SvCUR(sv); len = SvLEN(sv); iv = 0; nv = 0.0; magic = 0; stash = 0; del_XPV(SvANY(sv)); if (mt <= SVt_IV) mt = SVt_PVIV; else if (mt == SVt_NV) mt = SVt_PVNV; break; case SVt_PVIV: pv = SvPVX(sv); cur = SvCUR(sv); len = SvLEN(sv); iv = SvIVX(sv); nv = 0.0; magic = 0; stash = 0; del_XPVIV(SvANY(sv)); break; case SVt_PVNV: pv = SvPVX(sv); cur = SvCUR(sv); len = SvLEN(sv); iv = SvIVX(sv); nv = SvNVX(sv); magic = 0; stash = 0; del_XPVNV(SvANY(sv)); break; case SVt_PVMG: pv = SvPVX(sv); cur = SvCUR(sv); len = SvLEN(sv); iv = SvIVX(sv); nv = SvNVX(sv); magic = SvMAGIC(sv); stash = SvSTASH(sv); del_XPVMG(SvANY(sv)); break; default: Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); } switch (mt) { case SVt_NULL: Perl_croak(aTHX_ "Can't upgrade to undef"); case SVt_IV: SvANY(sv) = new_XIV(); SvIVX(sv) = iv; break; case SVt_NV: SvANY(sv) = new_XNV(); SvNVX(sv) = nv; break; case SVt_RV: SvANY(sv) = new_XRV(); SvRV(sv) = (SV*)pv; break; case SVt_PV: SvANY(sv) = new_XPV(); SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; break; case SVt_PVIV: SvANY(sv) = new_XPVIV(); SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; SvIVX(sv) = iv; if (SvNIOK(sv)) (void)SvIOK_on(sv); SvNOK_off(sv); break; case SVt_PVNV: SvANY(sv) = new_XPVNV(); SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; SvIVX(sv) = iv; SvNVX(sv) = nv; break; case SVt_PVMG: SvANY(sv) = new_XPVMG(); SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; SvIVX(sv) = iv; SvNVX(sv) = nv; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; break; case SVt_PVLV: SvANY(sv) = new_XPVLV(); SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; SvIVX(sv) = iv; SvNVX(sv) = nv; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; LvTARGOFF(sv) = 0; LvTARGLEN(sv) = 0; LvTARG(sv) = 0; LvTYPE(sv) = 0; break; case SVt_PVAV: SvANY(sv) = new_XPVAV(); if (pv) Safefree(pv); SvPVX(sv) = 0; AvMAX(sv) = -1; AvFILLp(sv) = -1; SvIVX(sv) = 0; SvNVX(sv) = 0.0; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; AvALLOC(sv) = 0; AvARYLEN(sv) = 0; AvFLAGS(sv) = 0; break; case SVt_PVHV: SvANY(sv) = new_XPVHV(); if (pv) Safefree(pv); SvPVX(sv) = 0; HvFILL(sv) = 0; HvMAX(sv) = 0; HvKEYS(sv) = 0; SvNVX(sv) = 0.0; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; HvRITER(sv) = 0; HvEITER(sv) = 0; HvPMROOT(sv) = 0; HvNAME(sv) = 0; break; case SVt_PVCV: SvANY(sv) = new_XPVCV(); Zero(SvANY(sv), 1, XPVCV); SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; SvIVX(sv) = iv; SvNVX(sv) = nv; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; break; case SVt_PVGV: SvANY(sv) = new_XPVGV(); SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; SvIVX(sv) = iv; SvNVX(sv) = nv; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; GvGP(sv) = 0; GvNAME(sv) = 0; GvNAMELEN(sv) = 0; GvSTASH(sv) = 0; GvFLAGS(sv) = 0; break; case SVt_PVBM: SvANY(sv) = new_XPVBM(); SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; SvIVX(sv) = iv; SvNVX(sv) = nv; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; BmRARE(sv) = 0; BmUSEFUL(sv) = 0; BmPREVIOUS(sv) = 0; break; case SVt_PVFM: SvANY(sv) = new_XPVFM(); Zero(SvANY(sv), 1, XPVFM); SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; SvIVX(sv) = iv; SvNVX(sv) = nv; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; break; case SVt_PVIO: SvANY(sv) = new_XPVIO(); Zero(SvANY(sv), 1, XPVIO); SvPVX(sv) = pv; SvCUR(sv) = cur; SvLEN(sv) = len; SvIVX(sv) = iv; SvNVX(sv) = nv; SvMAGIC(sv) = magic; SvSTASH(sv) = stash; IoPAGE_LEN(sv) = 60; break; } SvFLAGS(sv) &= ~SVTYPEMASK; SvFLAGS(sv) |= mt; return TRUE; } int Perl_sv_backoff(pTHX_ register SV *sv) { assert(SvOOK(sv)); if (SvIVX(sv)) { char *s = SvPVX(sv); SvLEN(sv) += SvIVX(sv); SvPVX(sv) -= SvIVX(sv); SvIV_set(sv, 0); Move(s, SvPVX(sv), SvCUR(sv)+1, char); } SvFLAGS(sv) &= ~SVf_OOK; return 0; } /* =for apidoc sv_grow Expands the character buffer in the SV. This will use C and will upgrade the SV to C. Returns a pointer to the character buffer. Use C. =cut */ char * Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) { register char *s; #ifdef HAS_64K_LIMIT if (newlen >= 0x10000) { PerlIO_printf(Perl_debug_log, "Allocation too large: %"UVxf"\n", (UV)newlen); my_exit(1); } #endif /* HAS_64K_LIMIT */ if (SvROK(sv)) sv_unref(sv); if (SvTYPE(sv) < SVt_PV) { sv_upgrade(sv, SVt_PV); s = SvPVX(sv); } else if (SvOOK(sv)) { /* pv is offset? */ sv_backoff(sv); s = SvPVX(sv); if (newlen > SvLEN(sv)) newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ #ifdef HAS_64K_LIMIT if (newlen >= 0x10000) newlen = 0xFFFF; #endif } else s = SvPVX(sv); if (newlen > SvLEN(sv)) { /* need more room? */ if (SvLEN(sv) && s) { #if defined(MYMALLOC) && !defined(PURIFY) && !defined(LEAKTEST) STRLEN l = malloced_size((void*)SvPVX(sv)); if (newlen <= l) { SvLEN_set(sv, l); return s; } else #endif Renew(s,newlen,char); } else New(703,s,newlen,char); SvPV_set(sv, s); SvLEN_set(sv, newlen); } return s; } /* =for apidoc sv_setiv Copies an integer into the given SV. Does not handle 'set' magic. See C. =cut */ void Perl_sv_setiv(pTHX_ register SV *sv, IV i) { SV_CHECK_THINKFIRST(sv); switch (SvTYPE(sv)) { case SVt_NULL: sv_upgrade(sv, SVt_IV); break; case SVt_NV: sv_upgrade(sv, SVt_PVNV); break; case SVt_RV: case SVt_PV: sv_upgrade(sv, SVt_PVIV); break; case SVt_PVGV: case SVt_PVAV: case SVt_PVHV: case SVt_PVCV: case SVt_PVFM: case SVt_PVIO: { dTHR; Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), PL_op_desc[PL_op->op_type]); } } (void)SvIOK_only(sv); /* validate number */ SvIVX(sv) = i; SvTAINT(sv); } /* =for apidoc sv_setiv_mg Like C, but also handles 'set' magic. =cut */ void Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) { sv_setiv(sv,i); SvSETMAGIC(sv); } /* =for apidoc sv_setuv Copies an unsigned integer into the given SV. Does not handle 'set' magic. See C. =cut */ void Perl_sv_setuv(pTHX_ register SV *sv, UV u) { sv_setiv(sv, 0); SvIsUV_on(sv); SvUVX(sv) = u; } /* =for apidoc sv_setuv_mg Like C, but also handles 'set' magic. =cut */ void Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) { sv_setuv(sv,u); SvSETMAGIC(sv); } /* =for apidoc sv_setnv Copies a double into the given SV. Does not handle 'set' magic. See C. =cut */ void Perl_sv_setnv(pTHX_ register SV *sv, NV num) { SV_CHECK_THINKFIRST(sv); switch (SvTYPE(sv)) { case SVt_NULL: case SVt_IV: sv_upgrade(sv, SVt_NV); break; case SVt_RV: case SVt_PV: case SVt_PVIV: sv_upgrade(sv, SVt_PVNV); break; case SVt_PVGV: case SVt_PVAV: case SVt_PVHV: case SVt_PVCV: case SVt_PVFM: case SVt_PVIO: { dTHR; Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), PL_op_name[PL_op->op_type]); } } SvNVX(sv) = num; (void)SvNOK_only(sv); /* validate number */ SvTAINT(sv); } /* =for apidoc sv_setnv_mg Like C, but also handles 'set' magic. =cut */ void Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) { sv_setnv(sv,num); SvSETMAGIC(sv); } STATIC void S_not_a_number(pTHX_ SV *sv) { dTHR; char tmpbuf[64]; char *d = tmpbuf; char *s; char *limit = tmpbuf + sizeof(tmpbuf) - 8; /* each *s can expand to 4 chars + "...\0", i.e. need room for 8 chars */ for (s = SvPVX(sv); *s && d < limit; s++) { int ch = *s & 0xFF; if (ch & 128 && !isPRINT_LC(ch)) { *d++ = 'M'; *d++ = '-'; ch &= 127; } if (ch == '\n') { *d++ = '\\'; *d++ = 'n'; } else if (ch == '\r') { *d++ = '\\'; *d++ = 'r'; } else if (ch == '\f') { *d++ = '\\'; *d++ = 'f'; } else if (ch == '\\') { *d++ = '\\'; *d++ = '\\'; } else if (isPRINT_LC(ch)) *d++ = ch; else { *d++ = '^'; *d++ = toCTRL(ch); } } if (*s) { *d++ = '.'; *d++ = '.'; *d++ = '.'; } *d = '\0'; if (PL_op) Perl_warner(aTHX_ WARN_NUMERIC, "Argument \"%s\" isn't numeric in %s", tmpbuf, PL_op_desc[PL_op->op_type]); else Perl_warner(aTHX_ WARN_NUMERIC, "Argument \"%s\" isn't numeric", tmpbuf); } /* the number can be converted to integer with atol() or atoll() */ #define IS_NUMBER_TO_INT_BY_ATOL 0x01 #define IS_NUMBER_TO_INT_BY_ATOF 0x02 /* atol() may be != atof() */ #define IS_NUMBER_NOT_IV 0x04 /* (IV)atof() may be != atof() */ #define IS_NUMBER_NEG 0x08 /* not good to cache UV */ /* Actually, ISO C leaves conversion of UV to IV undefined, but until proven guilty, assume that things are not that bad... */ IV Perl_sv_2iv(pTHX_ register SV *sv) { if (!sv) return 0; if (SvGMAGICAL(sv)) { mg_get(sv); if (SvIOKp(sv)) return SvIVX(sv); if (SvNOKp(sv)) { return I_V(SvNVX(sv)); } if (SvPOKp(sv) && SvLEN(sv)) return asIV(sv); if (!SvROK(sv)) { if (!(SvFLAGS(sv) & SVs_PADTMP)) { dTHR; if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) report_uninit(); } return 0; } } if (SvTHINKFIRST(sv)) { if (SvROK(sv)) { SV* tmpstr; if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer))) return SvIV(tmpstr); return PTR2IV(SvRV(sv)); } if (SvREADONLY(sv) && !SvOK(sv)) { dTHR; if (ckWARN(WARN_UNINITIALIZED)) report_uninit(); return 0; } } if (SvIOKp(sv)) { if (SvIsUV(sv)) { return (IV)(SvUVX(sv)); } else { return SvIVX(sv); } } if (SvNOKp(sv)) { /* We can cache the IV/UV value even if it not good enough * to reconstruct NV, since the conversion to PV will prefer * NV over IV/UV. */ if (SvTYPE(sv) == SVt_NV) sv_upgrade(sv, SVt_PVNV); (void)SvIOK_on(sv); if (SvNVX(sv) < (NV)IV_MAX + 0.5) SvIVX(sv) = I_V(SvNVX(sv)); else { SvUVX(sv) = U_V(SvNVX(sv)); SvIsUV_on(sv); ret_iv_max: DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", PTR2UV(sv), SvUVX(sv), SvUVX(sv))); return (IV)SvUVX(sv); } } else if (SvPOKp(sv) && SvLEN(sv)) { I32 numtype = looks_like_number(sv); /* We want to avoid a possible problem when we cache an IV which may be later translated to an NV, and the resulting NV is not the translation of the initial data. This means that if we cache such an IV, we need to cache the NV as well. Moreover, we trade speed for space, and do not cache the NV if not needed. */ if (numtype & IS_NUMBER_NOT_IV) { /* May be not an integer. Need to cache NV if we cache IV * - otherwise future conversion to NV will be wrong. */ NV d; d = Atof(SvPVX(sv)); if (SvTYPE(sv) < SVt_PVNV) sv_upgrade(sv, SVt_PVNV); SvNVX(sv) = d; (void)SvNOK_on(sv); (void)SvIOK_on(sv); #if defined(USE_LONG_DOUBLE) DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", PTR2UV(sv), SvNVX(sv))); #else DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%g)\n", PTR2UV(sv), SvNVX(sv))); #endif if (SvNVX(sv) < (NV)IV_MAX + 0.5) SvIVX(sv) = I_V(SvNVX(sv)); else { SvUVX(sv) = U_V(SvNVX(sv)); SvIsUV_on(sv); goto ret_iv_max; } } else if (numtype) { /* The NV may be reconstructed from IV - safe to cache IV, which may be calculated by atol(). */ if (SvTYPE(sv) == SVt_PV) sv_upgrade(sv, SVt_PVIV); (void)SvIOK_on(sv); SvIVX(sv) = Atol(SvPVX(sv)); } else { /* Not a number. Cache 0. */ dTHR; if (SvTYPE(sv) < SVt_PVIV) sv_upgrade(sv, SVt_PVIV); SvIVX(sv) = 0; (void)SvIOK_on(sv); if (ckWARN(WARN_NUMERIC)) not_a_number(sv); } } else { dTHR; if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) report_uninit(); if (SvTYPE(sv) < SVt_IV) /* Typically the caller expects that sv_any is not NULL now. */ sv_upgrade(sv, SVt_IV); return 0; } DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", PTR2UV(sv),SvIVX(sv))); return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); } UV Perl_sv_2uv(pTHX_ register SV *sv) { if (!sv) return 0; if (SvGMAGICAL(sv)) { mg_get(sv); if (SvIOKp(sv)) return SvUVX(sv); if (SvNOKp(sv)) return U_V(SvNVX(sv)); if (SvPOKp(sv) && SvLEN(sv)) return asUV(sv); if (!SvROK(sv)) { if (!(SvFLAGS(sv) & SVs_PADTMP)) { dTHR; if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) report_uninit(); } return 0; } } if (SvTHINKFIRST(sv)) { if (SvROK(sv)) { SV* tmpstr; if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer))) return SvUV(tmpstr); return PTR2UV(SvRV(sv)); } if (SvREADONLY(sv) && !SvOK(sv)) { dTHR; if (ckWARN(WARN_UNINITIALIZED)) report_uninit(); return 0; } } if (SvIOKp(sv)) { if (SvIsUV(sv)) { return SvUVX(sv); } else { return (UV)SvIVX(sv); } } if (SvNOKp(sv)) { /* We can cache the IV/UV value even if it not good enough * to reconstruct NV, since the conversion to PV will prefer * NV over IV/UV. */ if (SvTYPE(sv) == SVt_NV) sv_upgrade(sv, SVt_PVNV); (void)SvIOK_on(sv); if (SvNVX(sv) >= -0.5) { SvIsUV_on(sv); SvUVX(sv) = U_V(SvNVX(sv)); } else { SvIVX(sv) = I_V(SvNVX(sv)); ret_zero: DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"IVdf" => %"IVdf") (as signed)\n", PTR2UV(sv), SvIVX(sv), (IV)(UV)SvIVX(sv))); return (UV)SvIVX(sv); } } else if (SvPOKp(sv) && SvLEN(sv)) { I32 numtype = looks_like_number(sv); /* We want to avoid a possible problem when we cache a UV which may be later translated to an NV, and the resulting NV is not the translation of the initial data. This means that if we cache such a UV, we need to cache the NV as well. Moreover, we trade speed for space, and do not cache the NV if not needed. */ if (numtype & IS_NUMBER_NOT_IV) { /* May be not an integer. Need to cache NV if we cache IV * - otherwise future conversion to NV will be wrong. */ NV d; d = Atof(SvPVX(sv)); if (SvTYPE(sv) < SVt_PVNV) sv_upgrade(sv, SVt_PVNV); SvNVX(sv) = d; (void)SvNOK_on(sv); (void)SvIOK_on(sv); #if defined(USE_LONG_DOUBLE) DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", PTR2UV(sv), SvNVX(sv))); #else DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%g)\n", PTR2UV(sv), SvNVX(sv))); #endif if (SvNVX(sv) < -0.5) { SvIVX(sv) = I_V(SvNVX(sv)); goto ret_zero; } else { SvUVX(sv) = U_V(SvNVX(sv)); SvIsUV_on(sv); } } else if (numtype & IS_NUMBER_NEG) { /* The NV may be reconstructed from IV - safe to cache IV, which may be calculated by atol(). */ if (SvTYPE(sv) == SVt_PV) sv_upgrade(sv, SVt_PVIV); (void)SvIOK_on(sv); SvIVX(sv) = (IV)Atol(SvPVX(sv)); } else if (numtype) { /* Non-negative */ /* The NV may be reconstructed from UV - safe to cache UV, which may be calculated by strtoul()/atol. */ if (SvTYPE(sv) == SVt_PV) sv_upgrade(sv, SVt_PVIV); (void)SvIOK_on(sv); (void)SvIsUV_on(sv); #ifdef HAS_STRTOUL SvUVX(sv) = Strtoul(SvPVX(sv), Null(char**), 10); #else /* no atou(), but we know the number fits into IV... */ /* The only problem may be if it is negative... */ SvUVX(sv) = (UV)Atol(SvPVX(sv)); #endif } else { /* Not a number. Cache 0. */ dTHR; if (SvTYPE(sv) < SVt_PVIV) sv_upgrade(sv, SVt_PVIV); SvUVX(sv) = 0; /* We assume that 0s have the same bitmap in IV and UV. */ (void)SvIOK_on(sv); (void)SvIsUV_on(sv); if (ckWARN(WARN_NUMERIC)) not_a_number(sv); } } else { if (!(SvFLAGS(sv) & SVs_PADTMP)) { dTHR; if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) report_uninit(); } if (SvTYPE(sv) < SVt_IV) /* Typically the caller expects that sv_any is not NULL now. */ sv_upgrade(sv, SVt_IV); return 0; } DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", PTR2UV(sv),SvUVX(sv))); return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); } NV Perl_sv_2nv(pTHX_ register SV *sv) { if (!sv) return 0.0; if (SvGMAGICAL(sv)) { mg_get(sv); if (SvNOKp(sv)) return SvNVX(sv); if (SvPOKp(sv) && SvLEN(sv)) { dTHR; if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv)) not_a_number(sv); return Atof(SvPVX(sv)); } if (SvIOKp(sv)) { if (SvIsUV(sv)) return (NV)SvUVX(sv); else return (NV)SvIVX(sv); } if (!SvROK(sv)) { if (!(SvFLAGS(sv) & SVs_PADTMP)) { dTHR; if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) report_uninit(); } return 0; } } if (SvTHINKFIRST(sv)) { if (SvROK(sv)) { SV* tmpstr; if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer))) return SvNV(tmpstr); return PTR2NV(SvRV(sv)); } if (SvREADONLY(sv) && !SvOK(sv)) { dTHR; if (ckWARN(WARN_UNINITIALIZED)) report_uninit(); return 0.0; } } if (SvTYPE(sv) < SVt_NV) { if (SvTYPE(sv) == SVt_IV) sv_upgrade(sv, SVt_PVNV); else sv_upgrade(sv, SVt_NV); #if defined(USE_LONG_DOUBLE) DEBUG_c({ RESTORE_NUMERIC_STANDARD(); PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", PTR2UV(sv), SvNVX(sv)); RESTORE_NUMERIC_LOCAL(); }); #else DEBUG_c({ RESTORE_NUMERIC_STANDARD(); PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%g)\n", PTR2UV(sv), SvNVX(sv)); RESTORE_NUMERIC_LOCAL(); }); #endif } else if (SvTYPE(sv) < SVt_PVNV) sv_upgrade(sv, SVt_PVNV); if (SvIOKp(sv) && (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv))) { SvNVX(sv) = SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv); } else if (SvPOKp(sv) && SvLEN(sv)) { dTHR; if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv)) not_a_number(sv); SvNVX(sv) = Atof(SvPVX(sv)); } else { dTHR; if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) report_uninit(); if (SvTYPE(sv) < SVt_NV) /* Typically the caller expects that sv_any is not NULL now. */ sv_upgrade(sv, SVt_NV); return 0.0; } SvNOK_on(sv); #if defined(USE_LONG_DOUBLE) DEBUG_c({ RESTORE_NUMERIC_STANDARD(); PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", PTR2UV(sv), SvNVX(sv)); RESTORE_NUMERIC_LOCAL(); }); #else DEBUG_c({ RESTORE_NUMERIC_STANDARD(); PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%g)\n", PTR2UV(sv), SvNVX(sv)); RESTORE_NUMERIC_LOCAL(); }); #endif return SvNVX(sv); } STATIC IV S_asIV(pTHX_ SV *sv) { I32 numtype = looks_like_number(sv); NV d; if (numtype & IS_NUMBER_TO_INT_BY_ATOL) return Atol(SvPVX(sv)); if (!numtype) { dTHR; if (ckWARN(WARN_NUMERIC)) not_a_number(sv); } d = Atof(SvPVX(sv)); return I_V(d); } STATIC UV S_asUV(pTHX_ SV *sv) { I32 numtype = looks_like_number(sv); #ifdef HAS_STRTOUL if (numtype & IS_NUMBER_TO_INT_BY_ATOL) return Strtoul(SvPVX(sv), Null(char**), 10); #endif if (!numtype) { dTHR; if (ckWARN(WARN_NUMERIC)) not_a_number(sv); } return U_V(Atof(SvPVX(sv))); } /* * Returns a combination of (advisory only - can get false negatives) * IS_NUMBER_TO_INT_BY_ATOL, IS_NUMBER_TO_INT_BY_ATOF, IS_NUMBER_NOT_IV, * IS_NUMBER_NEG * 0 if does not look like number. * * In fact possible values are 0 and * IS_NUMBER_TO_INT_BY_ATOL 123 * IS_NUMBER_TO_INT_BY_ATOL | IS_NUMBER_NOT_IV 123.1 * IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV 123e0 * with a possible addition of IS_NUMBER_NEG. */ /* =for apidoc looks_like_number Test if an the content of an SV looks like a number (or is a number). =cut */ I32 Perl_looks_like_number(pTHX_ SV *sv) { register char *s; register char *send; register char *sbegin; register char *nbegin; I32 numtype = 0; STRLEN len; if (SvPOK(sv)) { sbegin = SvPVX(sv); len = SvCUR(sv); } else if (SvPOKp(sv)) sbegin = SvPV(sv, len); else return 1; send = sbegin + len; s = sbegin; while (isSPACE(*s)) s++; if (*s == '-') { s++; numtype = IS_NUMBER_NEG; } else if (*s == '+') s++; nbegin = s; /* * we return IS_NUMBER_TO_INT_BY_ATOL if the number can be converted * to _integer_ with atol() and IS_NUMBER_TO_INT_BY_ATOF if you need * (int)atof(). */ /* next must be digit or the radix separator */ if (isDIGIT(*s)) { do { s++; } while (isDIGIT(*s)); if (s - nbegin >= TYPE_DIGITS(IV)) /* Cannot cache ato[ul]() */ numtype |= IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV; else numtype |= IS_NUMBER_TO_INT_BY_ATOL; if (*s == '.' #ifdef USE_LOCALE_NUMERIC || IS_NUMERIC_RADIX(*s) #endif ) { s++; numtype |= IS_NUMBER_NOT_IV; while (isDIGIT(*s)) /* optional digits after the radix */ s++; } } else if (*s == '.' #ifdef USE_LOCALE_NUMERIC || IS_NUMERIC_RADIX(*s) #endif ) { s++; numtype |= IS_NUMBER_TO_INT_BY_ATOL | IS_NUMBER_NOT_IV; /* no digits before the radix means we need digits after it */ if (isDIGIT(*s)) { do { s++; } while (isDIGIT(*s)); } else return 0; } else return 0; /* we can have an optional exponent part */ if (*s == 'e' || *s == 'E') { numtype &= ~IS_NUMBER_NEG; numtype |= IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV; s++; if (*s == '+' || *s == '-') s++; if (isDIGIT(*s)) { do { s++; } while (isDIGIT(*s)); } else return 0; } while (isSPACE(*s)) s++; if (s >= send) return numtype; if (len == 10 && memEQ(sbegin, "0 but true", 10)) return IS_NUMBER_TO_INT_BY_ATOL; return 0; } char * Perl_sv_2pv_nolen(pTHX_ register SV *sv) { STRLEN n_a; return sv_2pv(sv, &n_a); } /* We assume that buf is at least TYPE_CHARS(UV) long. */ static char * uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) { STRLEN len; char *ptr = buf + TYPE_CHARS(UV); char *ebuf = ptr; int sign; char *p; if (is_uv) sign = 0; else if (iv >= 0) { uv = iv; sign = 0; } else { uv = -iv; sign = 1; } do { *--ptr = '0' + (uv % 10); } while (uv /= 10); if (sign) *--ptr = '-'; *peob = ebuf; return ptr; } char * Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp) { register char *s; int olderrno; SV *tsv; char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ char *tmpbuf = tbuf; if (!sv) { *lp = 0; return ""; } if (SvGMAGICAL(sv)) { mg_get(sv); if (SvPOKp(sv)) { *lp = SvCUR(sv); return SvPVX(sv); } if (SvIOKp(sv)) { if (SvIsUV(sv)) (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); else (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); tsv = Nullsv; goto tokensave; } if (SvNOKp(sv)) { Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); tsv = Nullsv; goto tokensave; } if (!SvROK(sv)) { if (!(SvFLAGS(sv) & SVs_PADTMP)) { dTHR; if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) report_uninit(); } *lp = 0; return ""; } } if (SvTHINKFIRST(sv)) { if (SvROK(sv)) { SV* tmpstr; if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string))) return SvPV(tmpstr,*lp); sv = (SV*)SvRV(sv); if (!sv) s = "NULLREF"; else { MAGIC *mg; switch (SvTYPE(sv)) { case SVt_PVMG: if ( ((SvFLAGS(sv) & (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) == (SVs_OBJECT|SVs_RMG)) && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp") && (mg = mg_find(sv, 'r'))) { dTHR; regexp *re = (regexp *)mg->mg_obj; if (!mg->mg_ptr) { char *fptr = "msix"; char reflags[6]; char ch; int left = 0; int right = 4; U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12; while(ch = *fptr++) { if(reganch & 1) { reflags[left++] = ch; } else { reflags[right--] = ch; } reganch >>= 1; } if(left != 4) { reflags[left] = '-'; left = 5; } mg->mg_len = re->prelen + 4 + left; New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); Copy("(?", mg->mg_ptr, 2, char); Copy(reflags, mg->mg_ptr+2, left, char); Copy(":", mg->mg_ptr+left+2, 1, char); Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); mg->mg_ptr[mg->mg_len - 1] = ')'; mg->mg_ptr[mg->mg_len] = 0; } PL_reginterp_cnt += re->program[0].next_off; *lp = mg->mg_len; return mg->mg_ptr; } /* Fall through */ case SVt_NULL: case SVt_IV: case SVt_NV: case SVt_RV: case SVt_PV: case SVt_PVIV: case SVt_PVNV: case SVt_PVBM: s = "SCALAR"; break; case SVt_PVLV: s = "LVALUE"; break; case SVt_PVAV: s = "ARRAY"; break; case SVt_PVHV: s = "HASH"; break; case SVt_PVCV: s = "CODE"; break; case SVt_PVGV: s = "GLOB"; break; case SVt_PVFM: s = "FORMAT"; break; case SVt_PVIO: s = "IO"; break; default: s = "UNKNOWN"; break; } tsv = NEWSV(0,0); if (SvOBJECT(sv)) Perl_sv_setpvf(aTHX_ tsv, "%s=%s", HvNAME(SvSTASH(sv)), s); else sv_setpv(tsv, s); Perl_sv_catpvf(aTHX_ tsv, "(0x%"UVxf")", PTR2UV(sv)); goto tokensaveref; } *lp = strlen(s); return s; } if (SvREADONLY(sv) && !SvOK(sv)) { dTHR; if (ckWARN(WARN_UNINITIALIZED)) report_uninit(); *lp = 0; return ""; } } if (SvNOKp(sv)) { /* See note in sv_2uv() */ /* XXXX 64-bit? IV may have better precision... */ /* I tried changing this for to be 64-bit-aware and * the t/op/numconvert.t became very, very, angry. * --jhi Sep 1999 */ if (SvTYPE(sv) < SVt_PVNV) sv_upgrade(sv, SVt_PVNV); SvGROW(sv, 28); s = SvPVX(sv); olderrno = errno; /* some Xenix systems wipe out errno here */ #ifdef apollo if (SvNVX(sv) == 0.0) (void)strcpy(s,"0"); else #endif /*apollo*/ { Gconvert(SvNVX(sv), NV_DIG, 0, s); } errno = olderrno; #ifdef FIXNEGATIVEZERO if (*s == '-' && s[1] == '0' && !s[2]) strcpy(s,"0"); #endif while (*s) s++; #ifdef hcx if (s[-1] == '.') *--s = '\0'; #endif } else if (SvIOKp(sv)) { U32 isIOK = SvIOK(sv); U32 isUIOK = SvIsUV(sv); char buf[TYPE_CHARS(UV)]; char *ebuf, *ptr; if (SvTYPE(sv) < SVt_PVIV) sv_upgrade(sv, SVt_PVIV); if (isUIOK) ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); else ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); SvGROW(sv, ebuf - ptr + 1); /* inlined from sv_setpvn */ Move(ptr,SvPVX(sv),ebuf - ptr,char); SvCUR_set(sv, ebuf - ptr); s = SvEND(sv); *s = '\0'; if (isIOK) SvIOK_on(sv); else SvIOKp_on(sv); if (isUIOK) SvIsUV_on(sv); SvPOK_on(sv); } else { dTHR; if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) { report_uninit(); } *lp = 0; if (SvTYPE(sv) < SVt_PV) /* Typically the caller expects that sv_any is not NULL now. */ sv_upgrade(sv, SVt_PV); return ""; } *lp = s - SvPVX(sv); SvCUR_set(sv, *lp); SvPOK_on(sv); DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", PTR2UV(sv),SvPVX(sv))); return SvPVX(sv); tokensave: if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ /* Sneaky stuff here */ tokensaveref: if (!tsv) tsv = newSVpv(tmpbuf, 0); sv_2mortal(tsv); *lp = SvCUR(tsv); return SvPVX(tsv); } else { STRLEN len; char *t; if (tsv) { sv_2mortal(tsv); t = SvPVX(tsv); len = SvCUR(tsv); } else { t = tmpbuf; len = strlen(tmpbuf); } #ifdef FIXNEGATIVEZERO if (len == 2 && t[0] == '-' && t[1] == '0') { t = "0"; len = 1; } #endif (void)SvUPGRADE(sv, SVt_PV); *lp = len; s = SvGROW(sv, len + 1); SvCUR_set(sv, len); (void)strcpy(s, t); SvPOKp_on(sv); return s; } } char * Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) { return sv_2pv_nolen(sv); } char * Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) { return sv_2pv(sv,lp); } char * Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) { return sv_2pv_nolen(sv); } char * Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) { return sv_2pv(sv,lp); } /* This function is only called on magical items */ bool Perl_sv_2bool(pTHX_ register SV *sv) { if (SvGMAGICAL(sv)) mg_get(sv); if (!SvOK(sv)) return 0; if (SvROK(sv)) { dTHR; SV* tmpsv; if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_))) return SvTRUE(tmpsv); return SvRV(sv) != 0; } if (SvPOKp(sv)) { register XPV* Xpvtmp; if ((Xpvtmp = (XPV*)SvANY(sv)) && (*Xpvtmp->xpv_pv > '0' || Xpvtmp->xpv_cur > 1 || (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) return 1; else return 0; } else { if (SvIOKp(sv)) return SvIVX(sv) != 0; else { if (SvNOKp(sv)) return SvNVX(sv) != 0.0; else return FALSE; } } } /* Note: sv_setsv() should not be called with a source string that needs * to be reused, since it may destroy the source string if it is marked * as temporary. */ /* =for apidoc sv_setsv Copies the contents of the source SV C into the destination SV C. The source SV may be destroyed if it is mortal. Does not handle 'set' magic. See the macro forms C, C and C. =cut */ void Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr) { dTHR; register U32 sflags; register int dtype; register int stype; if (sstr == dstr) return; SV_CHECK_THINKFIRST(dstr); if (!sstr) sstr = &PL_sv_undef; stype = SvTYPE(sstr); dtype = SvTYPE(dstr); SvAMAGIC_off(dstr); /* There's a lot of redundancy below but we're going for speed here */ switch (stype) { case SVt_NULL: undef_sstr: if (dtype != SVt_PVGV) { (void)SvOK_off(dstr); return; } break; case SVt_IV: if (SvIOK(sstr)) { switch (dtype) { case SVt_NULL: sv_upgrade(dstr, SVt_IV); break; case SVt_NV: sv_upgrade(dstr, SVt_PVNV); break; case SVt_RV: case SVt_PV: sv_upgrade(dstr, SVt_PVIV); break; } (void)SvIOK_only(dstr); SvIVX(dstr) = SvIVX(sstr); if (SvIsUV(sstr)) SvIsUV_on(dstr); SvTAINT(dstr); return; } goto undef_sstr; case SVt_NV: if (SvNOK(sstr)) { switch (dtype) { case SVt_NULL: case SVt_IV: sv_upgrade(dstr, SVt_NV); break; case SVt_RV: case SVt_PV: case SVt_PVIV: sv_upgrade(dstr, SVt_PVNV); break; } SvNVX(dstr) = SvNVX(sstr); (void)SvNOK_only(dstr); SvTAINT(dstr); return; } goto undef_sstr; case SVt_RV: if (dtype < SVt_RV) sv_upgrade(dstr, SVt_RV); else if (dtype == SVt_PVGV && SvTYPE(SvRV(sstr)) == SVt_PVGV) { sstr = SvRV(sstr); if (sstr == dstr) { if (GvIMPORTED(dstr) != GVf_IMPORTED && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) { GvIMPORTED_on(dstr); } GvMULTI_on(dstr); return; } goto glob_assign; } break; case SVt_PV: case SVt_PVFM: if (dtype < SVt_PV) sv_upgrade(dstr, SVt_PV); break; case SVt_PVIV: if (dtype < SVt_PVIV) sv_upgrade(dstr, SVt_PVIV); break; case SVt_PVNV: if (dtype < SVt_PVNV) sv_upgrade(dstr, SVt_PVNV); break; case SVt_PVAV: case SVt_PVHV: case SVt_PVCV: case SVt_PVIO: if (PL_op) Perl_croak(aTHX_ "Bizarre copy of %s in %s", sv_reftype(sstr, 0), PL_op_name[PL_op->op_type]); else Perl_croak(aTHX_ "Bizarre copy of %s", sv_reftype(sstr, 0)); break; case SVt_PVGV: if (dtype <= SVt_PVGV) { glob_assign: if (dtype != SVt_PVGV) { char *name = GvNAME(sstr); STRLEN len = GvNAMELEN(sstr); sv_upgrade(dstr, SVt_PVGV); sv_magic(dstr, dstr, '*', name, len); GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); GvNAME(dstr) = savepvn(name, len); GvNAMELEN(dstr) = len; SvFAKE_on(dstr); /* can coerce to non-glob */ } /* ahem, death to those who redefine active sort subs */ else if (PL_curstackinfo->si_type == PERLSI_SORT && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", GvNAME(dstr)); (void)SvOK_off(dstr); GvINTRO_off(dstr); /* one-shot flag */ gp_free((GV*)dstr); GvGP(dstr) = gp_ref(GvGP(sstr)); SvTAINT(dstr); if (GvIMPORTED(dstr) != GVf_IMPORTED && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) { GvIMPORTED_on(dstr); } GvMULTI_on(dstr); return; } /* FALL THROUGH */ default: if (SvGMAGICAL(sstr)) { mg_get(sstr); if (SvTYPE(sstr) != stype) { stype = SvTYPE(sstr); if (stype == SVt_PVGV && dtype <= SVt_PVGV) goto glob_assign; } } if (stype == SVt_PVLV) (void)SvUPGRADE(dstr, SVt_PVNV); else (void)SvUPGRADE(dstr, stype); } sflags = SvFLAGS(sstr); if (sflags & SVf_ROK) { if (dtype >= SVt_PV) { if (dtype == SVt_PVGV) { SV *sref = SvREFCNT_inc(SvRV(sstr)); SV *dref = 0; int intro = GvINTRO(dstr); if (intro) { GP *gp; gp_free((GV*)dstr); GvINTRO_off(dstr); /* one-shot flag */ Newz(602,gp, 1, GP); GvGP(dstr) = gp_ref(gp); GvSV(dstr) = NEWSV(72,0); GvLINE(dstr) = CopLINE(PL_curcop); GvEGV(dstr) = (GV*)dstr; } GvMULTI_on(dstr); switch (SvTYPE(sref)) { case SVt_PVAV: if (intro) SAVESPTR(GvAV(dstr)); else dref = (SV*)GvAV(dstr); GvAV(dstr) = (AV*)sref; if (GvIMPORTED_AV_off(dstr) && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) { GvIMPORTED_AV_on(dstr); } break; case SVt_PVHV: if (intro) SAVESPTR(GvHV(dstr)); else dref = (SV*)GvHV(dstr); GvHV(dstr) = (HV*)sref; if (GvIMPORTED_HV_off(dstr) && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) { GvIMPORTED_HV_on(dstr); } break; case SVt_PVCV: if (intro) { if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { SvREFCNT_dec(GvCV(dstr)); GvCV(dstr) = Nullcv; GvCVGEN(dstr) = 0; /* Switch off cacheness. */ PL_sub_generation++; } SAVESPTR(GvCV(dstr)); } else dref = (SV*)GvCV(dstr); if (GvCV(dstr) != (CV*)sref) { CV* cv = GvCV(dstr); if (cv) { if (!GvCVGEN((GV*)dstr) && (CvROOT(cv) || CvXSUB(cv))) { SV *const_sv = cv_const_sv(cv); bool const_changed = TRUE; if(const_sv) const_changed = sv_cmp(const_sv, op_const_sv(CvSTART((CV*)sref), Nullcv)); /* ahem, death to those who redefine * active sort subs */ if (PL_curstackinfo->si_type == PERLSI_SORT && PL_sortcop == CvSTART(cv)) Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", GvENAME((GV*)dstr)); if (ckWARN(WARN_REDEFINE) || (const_changed && const_sv)) { if (!(CvGV(cv) && GvSTASH(CvGV(cv)) && HvNAME(GvSTASH(CvGV(cv))) && strEQ(HvNAME(GvSTASH(CvGV(cv))), "autouse"))) Perl_warner(aTHX_ WARN_REDEFINE, const_sv ? "Constant subroutine %s redefined" : "Subroutine %s redefined", GvENAME((GV*)dstr)); } } cv_ckproto(cv, (GV*)dstr, SvPOK(sref) ? SvPVX(sref) : Nullch); } GvCV(dstr) = (CV*)sref; GvCVGEN(dstr) = 0; /* Switch off cacheness. */ GvASSUMECV_on(dstr); PL_sub_generation++; } if (GvIMPORTED_CV_off(dstr) && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) { GvIMPORTED_CV_on(dstr); } break; case SVt_PVIO: if (intro) SAVESPTR(GvIOp(dstr)); else dref = (SV*)GvIOp(dstr); GvIOp(dstr) = (IO*)sref; break; default: if (intro) SAVESPTR(GvSV(dstr)); else dref = (SV*)GvSV(dstr); GvSV(dstr) = sref; if (GvIMPORTED_SV_off(dstr) && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) { GvIMPORTED_SV_on(dstr); } break; } if (dref) SvREFCNT_dec(dref); if (intro) SAVEFREESV(sref); SvTAINT(dstr); return; } if (SvPVX(dstr)) { (void)SvOOK_off(dstr); /* backoff */ if (SvLEN(dstr)) Safefree(SvPVX(dstr)); SvLEN(dstr)=SvCUR(dstr)=0; } } (void)SvOK_off(dstr); SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); SvROK_on(dstr); if (sflags & SVp_NOK) { SvNOK_on(dstr); SvNVX(dstr) = SvNVX(sstr); } if (sflags & SVp_IOK) { (void)SvIOK_on(dstr); SvIVX(dstr) = SvIVX(sstr); if (SvIsUV(sstr)) SvIsUV_on(dstr); } if (SvAMAGIC(sstr)) { SvAMAGIC_on(dstr); } } else if (sflags & SVp_POK) { /* * Check to see if we can just swipe the string. If so, it's a * possible small lose on short strings, but a big win on long ones. * It might even be a win on short strings if SvPVX(dstr) * has to be allocated and SvPVX(sstr) has to be freed. */ if (SvTEMP(sstr) && /* slated for free anyway? */ SvREFCNT(sstr) == 1 && /* and no other references to it? */ !(sflags & SVf_OOK)) /* and not involved in OOK hack? */ { if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ if (SvOOK(dstr)) { SvFLAGS(dstr) &= ~SVf_OOK; Safefree(SvPVX(dstr) - SvIVX(dstr)); } else if (SvLEN(dstr)) Safefree(SvPVX(dstr)); } (void)SvPOK_only(dstr); SvPV_set(dstr, SvPVX(sstr)); SvLEN_set(dstr, SvLEN(sstr)); SvCUR_set(dstr, SvCUR(sstr)); SvTEMP_off(dstr); (void)SvOK_off(sstr); SvPV_set(sstr, Nullch); SvLEN_set(sstr, 0); SvCUR_set(sstr, 0); SvTEMP_off(sstr); } else { /* have to copy actual string */ STRLEN len = SvCUR(sstr); SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ Move(SvPVX(sstr),SvPVX(dstr),len,char); SvCUR_set(dstr, len); *SvEND(dstr) = '\0'; (void)SvPOK_only(dstr); } if (DO_UTF8(sstr)) SvUTF8_on(dstr); /*SUPPRESS 560*/ if (sflags & SVp_NOK) { SvNOK_on(dstr); SvNVX(dstr) = SvNVX(sstr); } if (sflags & SVp_IOK) { (void)SvIOK_on(dstr); SvIVX(dstr) = SvIVX(sstr); if (SvIsUV(sstr)) SvIsUV_on(dstr); } } else if (sflags & SVp_NOK) { SvNVX(dstr) = SvNVX(sstr); (void)SvNOK_only(dstr); if (SvIOK(sstr)) { (void)SvIOK_on(dstr); SvIVX(dstr) = SvIVX(sstr); /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ if (SvIsUV(sstr)) SvIsUV_on(dstr); } } else if (sflags & SVp_IOK) { (void)SvIOK_only(dstr); SvIVX(dstr) = SvIVX(sstr); if (SvIsUV(sstr)) SvIsUV_on(dstr); } else { if (dtype == SVt_PVGV) { if (ckWARN(WARN_UNSAFE)) Perl_warner(aTHX_ WARN_UNSAFE, "Undefined value assigned to typeglob"); } else (void)SvOK_off(dstr); } SvTAINT(dstr); } /* =for apidoc sv_setsv_mg Like C, but also handles 'set' magic. =cut */ void Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) { sv_setsv(dstr,sstr); SvSETMAGIC(dstr); } /* =for apidoc sv_setpvn Copies a string into an SV. The C parameter indicates the number of bytes to be copied. Does not handle 'set' magic. See C. =cut */ void Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) { register char *dptr; assert(len >= 0); /* STRLEN is probably unsigned, so this may elicit a warning, but it won't hurt. */ SV_CHECK_THINKFIRST(sv); if (!ptr) { (void)SvOK_off(sv); return; } (void)SvUPGRADE(sv, SVt_PV); SvGROW(sv, len + 1); dptr = SvPVX(sv); Move(ptr,dptr,len,char); dptr[len] = '\0'; SvCUR_set(sv, len); (void)SvPOK_only(sv); /* validate pointer */ SvTAINT(sv); } /* =for apidoc sv_setpvn_mg Like C, but also handles 'set' magic. =cut */ void Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) { sv_setpvn(sv,ptr,len); SvSETMAGIC(sv); } /* =for apidoc sv_setpv Copies a string into an SV. The string must be null-terminated. Does not handle 'set' magic. See C. =cut */ void Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) { register STRLEN len; SV_CHECK_THINKFIRST(sv); if (!ptr) { (void)SvOK_off(sv); return; } len = strlen(ptr); (void)SvUPGRADE(sv, SVt_PV); SvGROW(sv, len + 1); Move(ptr,SvPVX(sv),len+1,char); SvCUR_set(sv, len); (void)SvPOK_only(sv); /* validate pointer */ SvTAINT(sv); } /* =for apidoc sv_setpv_mg Like C, but also handles 'set' magic. =cut */ void Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) { sv_setpv(sv,ptr); SvSETMAGIC(sv); } /* =for apidoc sv_usepvn Tells an SV to use C to find its string value. Normally the string is stored inside the SV but sv_usepvn allows the SV to use an outside string. The C should point to memory that was allocated by C. The string length, C, must be supplied. This function will realloc the memory pointed to by C, so that pointer should not be freed or used by the programmer after giving it to sv_usepvn. Does not handle 'set' magic. See C. =cut */ void Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) { SV_CHECK_THINKFIRST(sv); (void)SvUPGRADE(sv, SVt_PV); if (!ptr) { (void)SvOK_off(sv); return; } (void)SvOOK_off(sv); if (SvPVX(sv) && SvLEN(sv)) Safefree(SvPVX(sv)); Renew(ptr, len+1, char); SvPVX(sv) = ptr; SvCUR_set(sv, len); SvLEN_set(sv, len+1); *SvEND(sv) = '\0'; (void)SvPOK_only(sv); /* validate pointer */ SvTAINT(sv); } /* =for apidoc sv_usepvn_mg Like C, but also handles 'set' magic. =cut */ void Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) { sv_usepvn(sv,ptr,len); SvSETMAGIC(sv); } void Perl_sv_force_normal(pTHX_ register SV *sv) { if (SvREADONLY(sv)) { dTHR; if (PL_curcop != &PL_compiling) Perl_croak(aTHX_ PL_no_modify); } if (SvROK(sv)) sv_unref(sv); else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) sv_unglob(sv); } /* =for apidoc sv_chop Efficient removal of characters from the beginning of the string buffer. SvPOK(sv) must be true and the C must be a pointer to somewhere inside the string buffer. The C becomes the first character of the adjusted string. =cut */ void Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */ { register STRLEN delta; if (!ptr || !SvPOKp(sv)) return; SV_CHECK_THINKFIRST(sv); if (SvTYPE(sv) < SVt_PVIV) sv_upgrade(sv,SVt_PVIV); if (!SvOOK(sv)) { if (!SvLEN(sv)) { /* make copy of shared string */ char *pvx = SvPVX(sv); STRLEN len = SvCUR(sv); SvGROW(sv, len + 1); Move(pvx,SvPVX(sv),len,char); *SvEND(sv) = '\0'; } SvIVX(sv) = 0; SvFLAGS(sv) |= SVf_OOK; } SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK|SVf_IVisUV); delta = ptr - SvPVX(sv); SvLEN(sv) -= delta; SvCUR(sv) -= delta; SvPVX(sv) += delta; SvIVX(sv) += delta; } /* =for apidoc sv_catpvn Concatenates the string onto the end of the string which is in the SV. The C indicates number of bytes to copy. Handles 'get' magic, but not 'set' magic. See C. =cut */ void Perl_sv_catpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) { STRLEN tlen; char *junk; junk = SvPV_force(sv, tlen); SvGROW(sv, tlen + len + 1); if (ptr == junk) ptr = SvPVX(sv); Move(ptr,SvPVX(sv)+tlen,len,char); SvCUR(sv) += len; *SvEND(sv) = '\0'; (void)SvPOK_only_UTF8(sv); /* validate pointer */ SvTAINT(sv); } /* =for apidoc sv_catpvn_mg Like C, but also handles 'set' magic. =cut */ void Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) { sv_catpvn(sv,ptr,len); SvSETMAGIC(sv); } /* =for apidoc sv_catsv Concatenates the string from SV C onto the end of the string in SV C. Handles 'get' magic, but not 'set' magic. See C. =cut */ void Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr) { char *s; STRLEN len; if (!sstr) return; if (s = SvPV(sstr, len)) sv_catpvn(dstr,s,len); if (SvUTF8(sstr)) SvUTF8_on(dstr); } /* =for apidoc sv_catsv_mg Like C, but also handles 'set' magic. =cut */ void Perl_sv_catsv_mg(pTHX_ SV *dstr, register SV *sstr) { sv_catsv(dstr,sstr); SvSETMAGIC(dstr); } /* =for apidoc sv_catpv Concatenates the string onto the end of the string which is in the SV. Handles 'get' magic, but not 'set' magic. See C. =cut */ void Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) { register STRLEN len; STRLEN tlen; char *junk; if (!ptr) return; junk = SvPV_force(sv, tlen); len = strlen(ptr); SvGROW(sv, tlen + len + 1); if (ptr == junk) ptr = SvPVX(sv); Move(ptr,SvPVX(sv)+tlen,len+1,char); SvCUR(sv) += len; (void)SvPOK_only_UTF8(sv); /* validate pointer */ SvTAINT(sv); } /* =for apidoc sv_catpv_mg Like C, but also handles 'set' magic. =cut */ void Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) { sv_catpv(sv,ptr); SvSETMAGIC(sv); } SV * Perl_newSV(pTHX_ STRLEN len) { register SV *sv; new_SV(sv); if (len) { sv_upgrade(sv, SVt_PV); SvGROW(sv, len + 1); } return sv; } /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */ /* =for apidoc sv_magic Adds magic to an SV. =cut */ void Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) { MAGIC* mg; if (SvREADONLY(sv)) { dTHR; if (PL_curcop != &PL_compiling && !strchr("gBf", how)) Perl_croak(aTHX_ PL_no_modify); } if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) { if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { if (how == 't') mg->mg_len |= 1; return; } } else { (void)SvUPGRADE(sv, SVt_PVMG); } Newz(702,mg, 1, MAGIC); mg->mg_moremagic = SvMAGIC(sv); SvMAGIC(sv) = mg; if (!obj || obj == sv || how == '#' || how == 'r') mg->mg_obj = obj; else { dTHR; mg->mg_obj = SvREFCNT_inc(obj); mg->mg_flags |= MGf_REFCOUNTED; } mg->mg_type = how; mg->mg_len = namlen; if (name) if (namlen >= 0) mg->mg_ptr = savepvn(name, namlen); else if (namlen == HEf_SVKEY) mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); switch (how) { case 0: mg->mg_virtual = &PL_vtbl_sv; break; case 'A': mg->mg_virtual = &PL_vtbl_amagic; break; case 'a': mg->mg_virtual = &PL_vtbl_amagicelem; break; case 'c': mg->mg_virtual = 0; break; case 'B': mg->mg_virtual = &PL_vtbl_bm; break; case 'D': mg->mg_virtual = &PL_vtbl_regdata; break; case 'd': mg->mg_virtual = &PL_vtbl_regdatum; break; case 'E': mg->mg_virtual = &PL_vtbl_env; break; case 'f': mg->mg_virtual = &PL_vtbl_fm; break; case 'e': mg->mg_virtual = &PL_vtbl_envelem; break; case 'g': mg->mg_virtual = &PL_vtbl_mglob; break; case 'I': mg->mg_virtual = &PL_vtbl_isa; break; case 'i': mg->mg_virtual = &PL_vtbl_isaelem; break; case 'k': mg->mg_virtual = &PL_vtbl_nkeys; break; case 'L': SvRMAGICAL_on(sv); mg->mg_virtual = 0; break; case 'l': mg->mg_virtual = &PL_vtbl_dbline; break; #ifdef USE_THREADS case 'm': mg->mg_virtual = &PL_vtbl_mutex; break; #endif /* USE_THREADS */ #ifdef USE_LOCALE_COLLATE case 'o': mg->mg_virtual = &PL_vtbl_collxfrm; break; #endif /* USE_LOCALE_COLLATE */ case 'P': mg->mg_virtual = &PL_vtbl_pack; break; case 'p': case 'q': mg->mg_virtual = &PL_vtbl_packelem; break; case 'r': mg->mg_virtual = &PL_vtbl_regexp; break; case 'S': mg->mg_virtual = &PL_vtbl_sig; break; case 's': mg->mg_virtual = &PL_vtbl_sigelem; break; case 't': mg->mg_virtual = &PL_vtbl_taint; mg->mg_len = 1; break; case 'U': mg->mg_virtual = &PL_vtbl_uvar; break; case 'v': mg->mg_virtual = &PL_vtbl_vec; break; case 'x': mg->mg_virtual = &PL_vtbl_substr; break; case 'y': mg->mg_virtual = &PL_vtbl_defelem; break; case '*': mg->mg_virtual = &PL_vtbl_glob; break; case '#': mg->mg_virtual = &PL_vtbl_arylen; break; case '.': mg->mg_virtual = &PL_vtbl_pos; break; case '<': mg->mg_virtual = &PL_vtbl_backref; break; case '~': /* Reserved for use by extensions not perl internals. */ /* Useful for attaching extension internal data to perl vars. */ /* Note that multiple extensions may clash if magical scalars */ /* etc holding private data from one are passed to another. */ SvRMAGICAL_on(sv); break; default: Perl_croak(aTHX_ "Don't know how to handle magic of type '%c'", how); } mg_magical(sv); if (SvGMAGICAL(sv)) SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); } int Perl_sv_unmagic(pTHX_ SV *sv, int type) { MAGIC* mg; MAGIC** mgp; if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) return 0; mgp = &SvMAGIC(sv); for (mg = *mgp; mg; mg = *mgp) { if (mg->mg_type == type) { MGVTBL* vtbl = mg->mg_virtual; *mgp = mg->mg_moremagic; if (vtbl && vtbl->svt_free) CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); if (mg->mg_ptr && mg->mg_type != 'g') if (mg->mg_len >= 0) Safefree(mg->mg_ptr); else if (mg->mg_len == HEf_SVKEY) SvREFCNT_dec((SV*)mg->mg_ptr); if (mg->mg_flags & MGf_REFCOUNTED) SvREFCNT_dec(mg->mg_obj); Safefree(mg); } else mgp = &mg->mg_moremagic; } if (!SvMAGIC(sv)) { SvMAGICAL_off(sv); SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; } return 0; } SV * Perl_sv_rvweaken(pTHX_ SV *sv) { SV *tsv; if (!SvOK(sv)) /* let undefs pass */ return sv; if (!SvROK(sv)) Perl_croak(aTHX_ "Can't weaken a nonreference"); else if (SvWEAKREF(sv)) { dTHR; if (ckWARN(WARN_MISC)) Perl_warner(aTHX_ WARN_MISC, "Reference is already weak"); return sv; } tsv = SvRV(sv); sv_add_backref(tsv, sv); SvWEAKREF_on(sv); SvREFCNT_dec(tsv); return sv; } STATIC void S_sv_add_backref(pTHX_ SV *tsv, SV *sv) { AV *av; MAGIC *mg; if (SvMAGICAL(tsv) && (mg = mg_find(tsv, '<'))) av = (AV*)mg->mg_obj; else { av = newAV(); sv_magic(tsv, (SV*)av, '<', NULL, 0); SvREFCNT_dec(av); /* for sv_magic */ } av_push(av,sv); } STATIC void S_sv_del_backref(pTHX_ SV *sv) { AV *av; SV **svp; I32 i; SV *tsv = SvRV(sv); MAGIC *mg; if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, '<'))) Perl_croak(aTHX_ "panic: del_backref"); av = (AV *)mg->mg_obj; svp = AvARRAY(av); i = AvFILLp(av); while (i >= 0) { if (svp[i] == sv) { svp[i] = &PL_sv_undef; /* XXX */ } i--; } } /* =for apidoc sv_insert Inserts a string at the specified offset/length within the SV. Similar to the Perl substr() function. =cut */ void Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) { register char *big; register char *mid; register char *midend; register char *bigend; register I32 i; STRLEN curlen; if (!bigstr) Perl_croak(aTHX_ "Can't modify non-existent substring"); SvPV_force(bigstr, curlen); if (offset + len > curlen) { SvGROW(bigstr, offset+len+1); Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); SvCUR_set(bigstr, offset+len); } SvTAINT(bigstr); i = littlelen - len; if (i > 0) { /* string might grow */ big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); mid = big + offset + len; midend = bigend = big + SvCUR(bigstr); bigend += i; *bigend = '\0'; while (midend > mid) /* shove everything down */ *--bigend = *--midend; Move(little,big+offset,littlelen,char); SvCUR(bigstr) += i; SvSETMAGIC(bigstr); return; } else if (i == 0) { Move(little,SvPVX(bigstr)+offset,len,char); SvSETMAGIC(bigstr); return; } big = SvPVX(bigstr); mid = big + offset; midend = mid + len; bigend = big + SvCUR(bigstr); if (midend > bigend) Perl_croak(aTHX_ "panic: sv_insert"); if (mid - big > bigend - midend) { /* faster to shorten from end */ if (littlelen) { Move(little, mid, littlelen,char); mid += littlelen; } i = bigend - midend; if (i > 0) { Move(midend, mid, i,char); mid += i; } *mid = '\0'; SvCUR_set(bigstr, mid - big); } /*SUPPRESS 560*/ else if (i = mid - big) { /* faster from front */ midend -= littlelen; mid = midend; sv_chop(bigstr,midend-i); big += i; while (i--) *--midend = *--big; if (littlelen) Move(little, mid, littlelen,char); } else if (littlelen) { midend -= littlelen; sv_chop(bigstr,midend); Move(little,midend,littlelen,char); } else { sv_chop(bigstr,midend); } SvSETMAGIC(bigstr); } /* make sv point to what nstr did */ void Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) { dTHR; U32 refcnt = SvREFCNT(sv); SV_CHECK_THINKFIRST(sv); if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL)) Perl_warner(aTHX_ WARN_INTERNAL, "Reference miscount in sv_replace()"); if (SvMAGICAL(sv)) { if (SvMAGICAL(nsv)) mg_free(nsv); else sv_upgrade(nsv, SVt_PVMG); SvMAGIC(nsv) = SvMAGIC(sv); SvFLAGS(nsv) |= SvMAGICAL(sv); SvMAGICAL_off(sv); SvMAGIC(sv) = 0; } SvREFCNT(sv) = 0; sv_clear(sv); assert(!SvREFCNT(sv)); StructCopy(nsv,sv,SV); SvREFCNT(sv) = refcnt; SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ del_SV(nsv); } void Perl_sv_clear(pTHX_ register SV *sv) { HV* stash; assert(sv); assert(SvREFCNT(sv) == 0); if (SvOBJECT(sv)) { dTHR; if (PL_defstash) { /* Still have a symbol table? */ djSP; GV* destructor; SV tmpref; Zero(&tmpref, 1, SV); sv_upgrade(&tmpref, SVt_RV); SvROK_on(&tmpref); SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */ SvREFCNT(&tmpref) = 1; do { stash = SvSTASH(sv); destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY"); if (destructor) { ENTER; PUSHSTACKi(PERLSI_DESTROY); SvRV(&tmpref) = SvREFCNT_inc(sv); EXTEND(SP, 2); PUSHMARK(SP); PUSHs(&tmpref); PUTBACK; call_sv((SV*)GvCV(destructor), G_DISCARD|G_EVAL|G_KEEPERR); SvREFCNT(sv)--; POPSTACK; SPAGAIN; LEAVE; } } while (SvOBJECT(sv) && SvSTASH(sv) != stash); del_XRV(SvANY(&tmpref)); if (SvREFCNT(sv)) { if (PL_in_clean_objs) Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", HvNAME(stash)); /* DESTROY gave object new lease on life */ return; } } if (SvOBJECT(sv)) { SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ SvOBJECT_off(sv); /* Curse the object. */ if (SvTYPE(sv) != SVt_PVIO) --PL_sv_objcount; /* XXX Might want something more general */ } } if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) mg_free(sv); stash = NULL; switch (SvTYPE(sv)) { case SVt_PVIO: if (IoIFP(sv) && IoIFP(sv) != PerlIO_stdin() && IoIFP(sv) != PerlIO_stdout() && IoIFP(sv) != PerlIO_stderr()) { io_close((IO*)sv, FALSE); } if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) PerlDir_close(IoDIRP(sv)); IoDIRP(sv) = (DIR*)NULL; Safefree(IoTOP_NAME(sv)); Safefree(IoFMT_NAME(sv)); Safefree(IoBOTTOM_NAME(sv)); /* FALL THROUGH */ case SVt_PVBM: goto freescalar; case SVt_PVCV: case SVt_PVFM: cv_undef((CV*)sv); goto freescalar; case SVt_PVHV: hv_undef((HV*)sv); break; case SVt_PVAV: av_undef((AV*)sv); break; case SVt_PVLV: SvREFCNT_dec(LvTARG(sv)); goto freescalar; case SVt_PVGV: gp_free((GV*)sv); Safefree(GvNAME(sv)); /* cannot decrease stash refcount yet, as we might recursively delete ourselves when the refcnt drops to zero. Delay SvREFCNT_dec of stash until current sv is completely gone. -- JohnPC, 27 Mar 1998 */ stash = GvSTASH(sv); /* FALL THROUGH */ case SVt_PVMG: case SVt_PVNV: case SVt_PVIV: freescalar: (void)SvOOK_off(sv); /* FALL THROUGH */ case SVt_PV: case SVt_RV: if (SvROK(sv)) { if (SvWEAKREF(sv)) sv_del_backref(sv); else SvREFCNT_dec(SvRV(sv)); } else if (SvPVX(sv) && SvLEN(sv)) Safefree(SvPVX(sv)); break; /* case SVt_NV: case SVt_IV: case SVt_NULL: break; */ } switch (SvTYPE(sv)) { case SVt_NULL: break; case SVt_IV: del_XIV(SvANY(sv)); break; case SVt_NV: del_XNV(SvANY(sv)); break; case SVt_RV: del_XRV(SvANY(sv)); break; case SVt_PV: del_XPV(SvANY(sv)); break; case SVt_PVIV: del_XPVIV(SvANY(sv)); break; case SVt_PVNV: del_XPVNV(SvANY(sv)); break; case SVt_PVMG: del_XPVMG(SvANY(sv)); break; case SVt_PVLV: del_XPVLV(SvANY(sv)); break; case SVt_PVAV: del_XPVAV(SvANY(sv)); break; case SVt_PVHV: del_XPVHV(SvANY(sv)); break; case SVt_PVCV: del_XPVCV(SvANY(sv)); break; case SVt_PVGV: del_XPVGV(SvANY(sv)); /* code duplication for increased performance. */ SvFLAGS(sv) &= SVf_BREAK; SvFLAGS(sv) |= SVTYPEMASK; /* decrease refcount of the stash that owns this GV, if any */ if (stash) SvREFCNT_dec(stash); return; /* not break, SvFLAGS reset already happened */ case SVt_PVBM: del_XPVBM(SvANY(sv)); break; case SVt_PVFM: del_XPVFM(SvANY(sv)); break; case SVt_PVIO: del_XPVIO(SvANY(sv)); break; } SvFLAGS(sv) &= SVf_BREAK; SvFLAGS(sv) |= SVTYPEMASK; } SV * Perl_sv_newref(pTHX_ SV *sv) { if (sv) ATOMIC_INC(SvREFCNT(sv)); return sv; } void Perl_sv_free(pTHX_ SV *sv) { dTHR; int refcount_is_zero; if (!sv) return; if (SvREFCNT(sv) == 0) { if (SvFLAGS(sv) & SVf_BREAK) return; if (PL_in_clean_all) /* All is fair */ return; if (SvREADONLY(sv) && SvIMMORTAL(sv)) { /* make sure SvREFCNT(sv)==0 happens very seldom */ SvREFCNT(sv) = (~(U32)0)/2; return; } if (ckWARN_d(WARN_INTERNAL)) Perl_warner(aTHX_ WARN_INTERNAL, "Attempt to free unreferenced scalar"); return; } ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); if (!refcount_is_zero) return; #ifdef DEBUGGING if (SvTEMP(sv)) { if (ckWARN_d(WARN_DEBUGGING)) Perl_warner(aTHX_ WARN_DEBUGGING, "Attempt to free temp prematurely: SV 0x%"UVxf, PTR2UV(sv)); return; } #endif if (SvREADONLY(sv) && SvIMMORTAL(sv)) { /* make sure SvREFCNT(sv)==0 happens very seldom */ SvREFCNT(sv) = (~(U32)0)/2; return; } sv_clear(sv); if (! SvREFCNT(sv)) del_SV(sv); } /* =for apidoc sv_len Returns the length of the string in the SV. See also C. =cut */ STRLEN Perl_sv_len(pTHX_ register SV *sv) { char *junk; STRLEN len; if (!sv) return 0; if (SvGMAGICAL(sv)) len = mg_length(sv); else junk = SvPV(sv, len); return len; } STRLEN Perl_sv_len_utf8(pTHX_ register SV *sv) { U8 *s; U8 *send; STRLEN len; if (!sv) return 0; #ifdef NOTYET if (SvGMAGICAL(sv)) len = mg_length(sv); else #endif s = (U8*)SvPV(sv, len); send = s + len; len = 0; while (s < send) { s += UTF8SKIP(s); len++; } return len; } void Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) { U8 *start; U8 *s; U8 *send; I32 uoffset = *offsetp; STRLEN len; if (!sv) return; start = s = (U8*)SvPV(sv, len); send = s + len; while (s < send && uoffset--) s += UTF8SKIP(s); if (s >= send) s = send; *offsetp = s - start; if (lenp) { I32 ulen = *lenp; start = s; while (s < send && ulen--) s += UTF8SKIP(s); if (s >= send) s = send; *lenp = s - start; } return; } void Perl_sv_pos_b2u(pTHX_ register SV *sv, I32* offsetp) { U8 *s; U8 *send; STRLEN len; if (!sv) return; s = (U8*)SvPV(sv, len); if (len < *offsetp) Perl_croak(aTHX_ "panic: bad byte offset"); send = s + *offsetp; len = 0; while (s < send) { s += UTF8SKIP(s); ++len; } if (s != send) { dTHR; if (ckWARN_d(WARN_UTF8)) Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-8 character"); --len; } *offsetp = len; return; } /* =for apidoc sv_eq Returns a boolean indicating whether the strings in the two SVs are identical. =cut */ I32 Perl_sv_eq(pTHX_ register SV *str1, register SV *str2) { char *pv1; STRLEN cur1; char *pv2; STRLEN cur2; if (!str1) { pv1 = ""; cur1 = 0; } else pv1 = SvPV(str1, cur1); if (!str2) return !cur1; else pv2 = SvPV(str2, cur2); if (cur1 != cur2) return 0; return memEQ(pv1, pv2, cur1); } /* =for apidoc sv_cmp Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the string in C is less than, equal to, or greater than the string in C. =cut */ I32 Perl_sv_cmp(pTHX_ register SV *str1, register SV *str2) { STRLEN cur1 = 0; char *pv1 = str1 ? SvPV(str1, cur1) : (char *) NULL; STRLEN cur2 = 0; char *pv2 = str2 ? SvPV(str2, cur2) : (char *) NULL; I32 retval; if (!cur1) return cur2 ? -1 : 0; if (!cur2) return 1; retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); if (retval) return retval < 0 ? -1 : 1; if (cur1 == cur2) return 0; else return cur1 < cur2 ? -1 : 1; } I32 Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) { #ifdef USE_LOCALE_COLLATE char *pv1, *pv2; STRLEN len1, len2; I32 retval; if (PL_collation_standard) goto raw_compare; len1 = 0; pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; len2 = 0; pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; if (!pv1 || !len1) { if (pv2 && len2) return -1; else goto raw_compare; } else { if (!pv2 || !len2) return 1; } retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); if (retval) return retval < 0 ? -1 : 1; /* * When the result of collation is equality, that doesn't mean * that there are no differences -- some locales exclude some * characters from consideration. So to avoid false equalities, * we use the raw string as a tiebreaker. */ raw_compare: /* FALL THROUGH */ #endif /* USE_LOCALE_COLLATE */ return sv_cmp(sv1, sv2); } #ifdef USE_LOCALE_COLLATE /* * Any scalar variable may carry an 'o' magic that contains the * scalar data of the variable transformed to such a format that * a normal memory comparison can be used to compare the data * according to the locale settings. */ char * Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) { MAGIC *mg; mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL; if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { char *s, *xf; STRLEN len, xlen; if (mg) Safefree(mg->mg_ptr); s = SvPV(sv, len); if ((xf = mem_collxfrm(s, len, &xlen))) { if (SvREADONLY(sv)) { SAVEFREEPV(xf); *nxp = xlen; return xf + sizeof(PL_collation_ix); } if (! mg) { sv_magic(sv, 0, 'o', 0, 0); mg = mg_find(sv, 'o'); assert(mg); } mg->mg_ptr = xf; mg->mg_len = xlen; } else { if (mg) { mg->mg_ptr = NULL; mg->mg_len = -1; } } } if (mg && mg->mg_ptr) { *nxp = mg->mg_len; return mg->mg_ptr + sizeof(PL_collation_ix); } else { *nxp = 0; return NULL; } } #endif /* USE_LOCALE_COLLATE */ char * Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) { dTHR; char *rsptr; STRLEN rslen; register STDCHAR rslast; register STDCHAR *bp; register I32 cnt; I32 i; SV_CHECK_THINKFIRST(sv); (void)SvUPGRADE(sv, SVt_PV); SvSCREAM_off(sv); if (RsSNARF(PL_rs)) { rsptr = NULL; rslen = 0; } else if (RsRECORD(PL_rs)) { I32 recsize, bytesread; char *buffer; /* Grab the size of the record we're getting */ recsize = SvIV(SvRV(PL_rs)); (void)SvPOK_only(sv); /* Validate pointer */ buffer = SvGROW(sv, recsize + 1); /* Go yank in */ #ifdef VMS /* VMS wants read instead of fread, because fread doesn't respect */ /* RMS record boundaries. This is not necessarily a good thing to be */ /* doing, but we've got no other real choice */ bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); #else bytesread = PerlIO_read(fp, buffer, recsize); #endif SvCUR_set(sv, bytesread); buffer[bytesread] = '\0'; return(SvCUR(sv) ? SvPVX(sv) : Nullch); } else if (RsPARA(PL_rs)) { rsptr = "\n\n"; rslen = 2; } else rsptr = SvPV(PL_rs, rslen); rslast = rslen ? rsptr[rslen - 1] : '\0'; if (RsPARA(PL_rs)) { /* have to do this both before and after */ do { /* to make sure file boundaries work right */ if (PerlIO_eof(fp)) return 0; i = PerlIO_getc(fp); if (i != '\n') { if (i == -1) return 0; PerlIO_ungetc(fp,i); break; } } while (i != EOF); } /* See if we know enough about I/O mechanism to cheat it ! */ /* This used to be #ifdef test - it is made run-time test for ease of abstracting out stdio interface. One call should be cheap enough here - and may even be a macro allowing compile time optimization. */ if (PerlIO_fast_gets(fp)) { /* * We're going to steal some values from the stdio struct * and put EVERYTHING in the innermost loop into registers. */ register STDCHAR *ptr; STRLEN bpx; I32 shortbuffered; #if defined(VMS) && defined(PERLIO_IS_STDIO) /* An ungetc()d char is handled separately from the regular * buffer, so we getc() it back out and stuff it in the buffer. */ i = PerlIO_getc(fp); if (i == EOF) return 0; *(--((*fp)->_ptr)) = (unsigned char) i; (*fp)->_cnt++; #endif /* Here is some breathtakingly efficient cheating */ cnt = PerlIO_get_cnt(fp); /* get count into register */ (void)SvPOK_only(sv); /* validate pointer */ if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */ if (cnt > 80 && SvLEN(sv) > append) { shortbuffered = cnt - SvLEN(sv) + append + 1; cnt -= shortbuffered; } else { shortbuffered = 0; /* remember that cnt can be negative */ SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1))); } } else shortbuffered = 0; bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ ptr = (STDCHAR*)PerlIO_get_ptr(fp); DEBUG_P(PerlIO_printf(Perl_debug_log, "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); DEBUG_P(PerlIO_printf(Perl_debug_log, "Screamer: entering: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); for (;;) { screamer: if (cnt > 0) { if (rslen) { while (cnt > 0) { /* this | eat */ cnt--; if ((*bp++ = *ptr++) == rslast) /* really | dust */ goto thats_all_folks; /* screams | sed :-) */ } } else { Copy(ptr, bp, cnt, char); /* this | eat */ bp += cnt; /* screams | dust */ ptr += cnt; /* louder | sed :-) */ cnt = 0; } } if (shortbuffered) { /* oh well, must extend */ cnt = shortbuffered; shortbuffered = 0; bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ SvCUR_set(sv, bpx); SvGROW(sv, SvLEN(sv) + append + cnt + 2); bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ continue; } DEBUG_P(PerlIO_printf(Perl_debug_log, "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", PTR2UV(ptr),(long)cnt)); PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */ DEBUG_P(PerlIO_printf(Perl_debug_log, "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); /* This used to call 'filbuf' in stdio form, but as that behaves like getc when cnt <= 0 we use PerlIO_getc here to avoid introducing another abstraction. */ i = PerlIO_getc(fp); /* get more characters */ DEBUG_P(PerlIO_printf(Perl_debug_log, "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); cnt = PerlIO_get_cnt(fp); ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ DEBUG_P(PerlIO_printf(Perl_debug_log, "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); if (i == EOF) /* all done for ever? */ goto thats_really_all_folks; bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ SvCUR_set(sv, bpx); SvGROW(sv, bpx + cnt + 2); bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ *bp++ = i; /* store character from PerlIO_getc */ if (rslen && (STDCHAR)i == rslast) /* all done for now? */ goto thats_all_folks; } thats_all_folks: if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) || memNE((char*)bp - rslen, rsptr, rslen)) goto screamer; /* go back to the fray */ thats_really_all_folks: if (shortbuffered) cnt += shortbuffered; DEBUG_P(PerlIO_printf(Perl_debug_log, "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */ DEBUG_P(PerlIO_printf(Perl_debug_log, "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); *bp = '\0'; SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ DEBUG_P(PerlIO_printf(Perl_debug_log, "Screamer: done, len=%ld, string=|%.*s|\n", (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); } else { #ifndef EPOC /*The big, slow, and stupid way */ STDCHAR buf[8192]; #else /* Need to work around EPOC SDK features */ /* On WINS: MS VC5 generates calls to _chkstk, */ /* if a `large' stack frame is allocated */ /* gcc on MARM does not generate calls like these */ STDCHAR buf[1024]; #endif screamer2: if (rslen) { register STDCHAR *bpe = buf + sizeof(buf); bp = buf; while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe) ; /* keep reading */ cnt = bp - buf; } else { cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); /* Accomodate broken VAXC compiler, which applies U8 cast to * both args of ?: operator, causing EOF to change into 255 */ if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; } } if (append) sv_catpvn(sv, (char *) buf, cnt); else sv_setpvn(sv, (char *) buf, cnt); if (i != EOF && /* joy */ (!rslen || SvCUR(sv) < rslen || memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) { append = -1; /* * If we're reading from a TTY and we get a short read, * indicating that the user hit his EOF character, we need * to notice it now, because if we try to read from the TTY * again, the EOF condition will disappear. * * The comparison of cnt to sizeof(buf) is an optimization * that prevents unnecessary calls to feof(). * * - jik 9/25/96 */ if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) goto screamer2; } } if (RsPARA(PL_rs)) { /* have to do this both before and after */ while (i != EOF) { /* to make sure file boundaries work right */ i = PerlIO_getc(fp); if (i != '\n') { PerlIO_ungetc(fp,i); break; } } } return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; } /* =for apidoc sv_inc Auto-increment of the value in the SV. =cut */ void Perl_sv_inc(pTHX_ register SV *sv) { register char *d; int flags; if (!sv) return; if (SvGMAGICAL(sv)) mg_get(sv); if (SvTHINKFIRST(sv)) { if (SvREADONLY(sv)) { dTHR; if (PL_curcop != &PL_compiling) Perl_croak(aTHX_ PL_no_modify); } if (SvROK(sv)) { IV i; if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return; i = PTR2IV(SvRV(sv)); sv_unref(sv); sv_setiv(sv, i); } } flags = SvFLAGS(sv); if (flags & SVp_NOK) { (void)SvNOK_only(sv); SvNVX(sv) += 1.0; return; } if (flags & SVp_IOK) { if (SvIsUV(sv)) { if (SvUVX(sv) == UV_MAX) sv_setnv(sv, (NV)UV_MAX + 1.0); else (void)SvIOK_only_UV(sv); ++SvUVX(sv); } else { if (SvIVX(sv) == IV_MAX) sv_setnv(sv, (NV)IV_MAX + 1.0); else { (void)SvIOK_only(sv); ++SvIVX(sv); } } return; } if (!(flags & SVp_POK) || !*SvPVX(sv)) { if ((flags & SVTYPEMASK) < SVt_PVNV) sv_upgrade(sv, SVt_NV); SvNVX(sv) = 1.0; (void)SvNOK_only(sv); return; } d = SvPVX(sv); while (isALPHA(*d)) d++; while (isDIGIT(*d)) d++; if (*d) { sv_setnv(sv,Atof(SvPVX(sv)) + 1.0); /* punt */ return; } d--; while (d >= SvPVX(sv)) { if (isDIGIT(*d)) { if (++*d <= '9') return; *(d--) = '0'; } else { #ifdef EBCDIC /* MKS: The original code here died if letters weren't consecutive. * at least it didn't have to worry about non-C locales. The * new code assumes that ('z'-'a')==('Z'-'A'), letters are * arranged in order (although not consecutively) and that only * [A-Za-z] are accepted by isALPHA in the C locale. */ if (*d != 'z' && *d != 'Z') { do { ++*d; } while (!isALPHA(*d)); return; } *(d--) -= 'z' - 'a'; #else ++*d; if (isALPHA(*d)) return; *(d--) -= 'z' - 'a' + 1; #endif } } /* oh,oh, the number grew */ SvGROW(sv, SvCUR(sv) + 2); SvCUR(sv)++; for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) *d = d[-1]; if (isDIGIT(d[1])) *d = '1'; else *d = d[1]; } /* =for apidoc sv_dec Auto-decrement of the value in the SV. =cut */ void Perl_sv_dec(pTHX_ register SV *sv) { int flags; if (!sv) return; if (SvGMAGICAL(sv)) mg_get(sv); if (SvTHINKFIRST(sv)) { if (SvREADONLY(sv)) { dTHR; if (PL_curcop != &PL_compiling) Perl_croak(aTHX_ PL_no_modify); } if (SvROK(sv)) { IV i; if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return; i = PTR2IV(SvRV(sv)); sv_unref(sv); sv_setiv(sv, i); } } flags = SvFLAGS(sv); if (flags & SVp_NOK) { SvNVX(sv) -= 1.0; (void)SvNOK_only(sv); return; } if (flags & SVp_IOK) { if (SvIsUV(sv)) { if (SvUVX(sv) == 0) { (void)SvIOK_only(sv); SvIVX(sv) = -1; } else { (void)SvIOK_only_UV(sv); --SvUVX(sv); } } else { if (SvIVX(sv) == IV_MIN) sv_setnv(sv, (NV)IV_MIN - 1.0); else { (void)SvIOK_only(sv); --SvIVX(sv); } } return; } if (!(flags & SVp_POK)) { if ((flags & SVTYPEMASK) < SVt_PVNV) sv_upgrade(sv, SVt_NV); SvNVX(sv) = -1.0; (void)SvNOK_only(sv); return; } sv_setnv(sv,Atof(SvPVX(sv)) - 1.0); /* punt */ } /* =for apidoc sv_mortalcopy Creates a new SV which is a copy of the original SV. The new SV is marked as mortal. =cut */ /* Make a string that will exist for the duration of the expression * evaluation. Actually, it may have to last longer than that, but * hopefully we won't free it until it has been assigned to a * permanent location. */ SV * Perl_sv_mortalcopy(pTHX_ SV *oldstr) { dTHR; register SV *sv; new_SV(sv); sv_setsv(sv,oldstr); EXTEND_MORTAL(1); PL_tmps_stack[++PL_tmps_ix] = sv; SvTEMP_on(sv); return sv; } /* =for apidoc sv_newmortal Creates a new SV which is mortal. The reference count of the SV is set to 1. =cut */ SV * Perl_sv_newmortal(pTHX) { dTHR; register SV *sv; new_SV(sv); SvFLAGS(sv) = SVs_TEMP; EXTEND_MORTAL(1); PL_tmps_stack[++PL_tmps_ix] = sv; return sv; } /* =for apidoc sv_2mortal Marks an SV as mortal. The SV will be destroyed when the current context ends. =cut */ /* same thing without the copying */ SV * Perl_sv_2mortal(pTHX_ register SV *sv) { dTHR; if (!sv) return sv; if (SvREADONLY(sv) && SvIMMORTAL(sv)) return sv; EXTEND_MORTAL(1); PL_tmps_stack[++PL_tmps_ix] = sv; SvTEMP_on(sv); return sv; } /* =for apidoc newSVpv Creates a new SV and copies a string into it. The reference count for the SV is set to 1. If C is zero, Perl will compute the length using strlen(). For efficiency, consider using C instead. =cut */ SV * Perl_newSVpv(pTHX_ const char *s, STRLEN len) { register SV *sv; new_SV(sv); if (!len) len = strlen(s); sv_setpvn(sv,s,len); return sv; } /* =for apidoc newSVpvn Creates a new SV and copies a string into it. The reference count for the SV is set to 1. Note that if C is zero, Perl will create a zero length string. You are responsible for ensuring that the source string is at least C bytes long. =cut */ SV * Perl_newSVpvn(pTHX_ const char *s, STRLEN len) { register SV *sv; new_SV(sv); sv_setpvn(sv,s,len); return sv; } #if defined(PERL_IMPLICIT_CONTEXT) SV * Perl_newSVpvf_nocontext(const char* pat, ...) { dTHX; register SV *sv; va_list args; va_start(args, pat); sv = vnewSVpvf(pat, &args); va_end(args); return sv; } #endif /* =for apidoc newSVpvf Creates a new SV an initialize it with the string formatted like C. =cut */ SV * Perl_newSVpvf(pTHX_ const char* pat, ...) { register SV *sv; va_list args; va_start(args, pat); sv = vnewSVpvf(pat, &args); va_end(args); return sv; } SV * Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) { register SV *sv; new_SV(sv); sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); return sv; } /* =for apidoc newSVnv Creates a new SV and copies a floating point value into it. The reference count for the SV is set to 1. =cut */ SV * Perl_newSVnv(pTHX_ NV n) { register SV *sv; new_SV(sv); sv_setnv(sv,n); return sv; } /* =for apidoc newSViv Creates a new SV and copies an integer into it. The reference count for the SV is set to 1. =cut */ SV * Perl_newSViv(pTHX_ IV i) { register SV *sv; new_SV(sv); sv_setiv(sv,i); return sv; } /* =for apidoc newRV_noinc Creates an RV wrapper for an SV. The reference count for the original SV is B incremented. =cut */ SV * Perl_newRV_noinc(pTHX_ SV *tmpRef) { dTHR; register SV *sv; new_SV(sv); sv_upgrade(sv, SVt_RV); SvTEMP_off(tmpRef); SvRV(sv) = tmpRef; SvROK_on(sv); return sv; } /* newRV_inc is #defined to newRV in sv.h */ SV * Perl_newRV(pTHX_ SV *tmpRef) { return newRV_noinc(SvREFCNT_inc(tmpRef)); } /* =for apidoc newSVsv Creates a new SV which is an exact duplicate of the original SV. =cut */ /* make an exact duplicate of old */ SV * Perl_newSVsv(pTHX_ register SV *old) { dTHR; register SV *sv; if (!old) return Nullsv; if (SvTYPE(old) == SVTYPEMASK) { if (ckWARN_d(WARN_INTERNAL)) Perl_warner(aTHX_ WARN_INTERNAL, "semi-panic: attempt to dup freed string"); return Nullsv; } new_SV(sv); if (SvTEMP(old)) { SvTEMP_off(old); sv_setsv(sv,old); SvTEMP_on(old); } else sv_setsv(sv,old); return sv; } void Perl_sv_reset(pTHX_ register char *s, HV *stash) { register HE *entry; register GV *gv; register SV *sv; register I32 i; register PMOP *pm; register I32 max; char todo[PERL_UCHAR_MAX+1]; if (!stash) return; if (!*s) { /* reset ?? searches */ for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { pm->op_pmdynflags &= ~PMdf_USED; } return; } /* reset variables */ if (!HvARRAY(stash)) return; Zero(todo, 256, char); while (*s) { i = (unsigned char)*s; if (s[1] == '-') { s += 2; } max = (unsigned char)*s++; for ( ; i <= max; i++) { todo[i] = 1; } for (i = 0; i <= (I32) HvMAX(stash); i++) { for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) { if (!todo[(U8)*HeKEY(entry)]) continue; gv = (GV*)HeVAL(entry); sv = GvSV(gv); if (SvTHINKFIRST(sv)) { if (!SvREADONLY(sv) && SvROK(sv)) sv_unref(sv); continue; } (void)SvOK_off(sv); if (SvTYPE(sv) >= SVt_PV) { SvCUR_set(sv, 0); if (SvPVX(sv) != Nullch) *SvPVX(sv) = '\0'; SvTAINT(sv); } if (GvAV(gv)) { av_clear(GvAV(gv)); } if (GvHV(gv) && !HvNAME(GvHV(gv))) { hv_clear(GvHV(gv)); #ifndef VMS /* VMS has no environ array */ if (gv == PL_envgv) environ[0] = Nullch; #endif } } } } } IO* Perl_sv_2io(pTHX_ SV *sv) { IO* io; GV* gv; STRLEN n_a; switch (SvTYPE(sv)) { case SVt_PVIO: io = (IO*)sv; break; case SVt_PVGV: gv = (GV*)sv; io = GvIO(gv); if (!io) Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); break; default: if (!SvOK(sv)) Perl_croak(aTHX_ PL_no_usym, "filehandle"); if (SvROK(sv)) return sv_2io(SvRV(sv)); gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); if (gv) io = GvIO(gv); else io = 0; if (!io) Perl_croak(aTHX_ "Bad filehandle: %s", SvPV(sv,n_a)); break; } return io; } CV * Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) { GV *gv; CV *cv; STRLEN n_a; if (!sv) return *gvp = Nullgv, Nullcv; switch (SvTYPE(sv)) { case SVt_PVCV: *st = CvSTASH(sv); *gvp = Nullgv; return (CV*)sv; case SVt_PVHV: case SVt_PVAV: *gvp = Nullgv; return Nullcv; case SVt_PVGV: gv = (GV*)sv; *gvp = gv; *st = GvESTASH(gv); goto fix_gv; default: if (SvGMAGICAL(sv)) mg_get(sv); if (SvROK(sv)) { dTHR; SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ tryAMAGICunDEREF(to_cv); sv = SvRV(sv); if (SvTYPE(sv) == SVt_PVCV) { cv = (CV*)sv; *gvp = Nullgv; *st = CvSTASH(cv); return cv; } else if(isGV(sv)) gv = (GV*)sv; else Perl_croak(aTHX_ "Not a subroutine reference"); } else if (isGV(sv)) gv = (GV*)sv; else gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); *gvp = gv; if (!gv) return Nullcv; *st = GvESTASH(gv); fix_gv: if (lref && !GvCVu(gv)) { SV *tmpsv; ENTER; tmpsv = NEWSV(704,0); gv_efullname3(tmpsv, gv, Nullch); /* XXX this is probably not what they think they're getting. * It has the same effect as "sub name;", i.e. just a forward * declaration! */ newSUB(start_subparse(FALSE, 0), newSVOP(OP_CONST, 0, tmpsv), Nullop, Nullop); LEAVE; if (!GvCVu(gv)) Perl_croak(aTHX_ "Unable to create sub named \"%s\"", SvPV(sv,n_a)); } return GvCVu(gv); } } I32 Perl_sv_true(pTHX_ register SV *sv) { dTHR; if (!sv) return 0; if (SvPOK(sv)) { register XPV* tXpv; if ((tXpv = (XPV*)SvANY(sv)) && (tXpv->xpv_cur > 1 || (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) return 1; else return 0; } else { if (SvIOK(sv)) return SvIVX(sv) != 0; else { if (SvNOK(sv)) return SvNVX(sv) != 0.0; else return sv_2bool(sv); } } } IV Perl_sv_iv(pTHX_ register SV *sv) { if (SvIOK(sv)) { if (SvIsUV(sv)) return (IV)SvUVX(sv); return SvIVX(sv); } return sv_2iv(sv); } UV Perl_sv_uv(pTHX_ register SV *sv) { if (SvIOK(sv)) { if (SvIsUV(sv)) return SvUVX(sv); return (UV)SvIVX(sv); } return sv_2uv(sv); } NV Perl_sv_nv(pTHX_ register SV *sv) { if (SvNOK(sv)) return SvNVX(sv); return sv_2nv(sv); } char * Perl_sv_pv(pTHX_ SV *sv) { STRLEN n_a; if (SvPOK(sv)) return SvPVX(sv); return sv_2pv(sv, &n_a); } char * Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) { if (SvPOK(sv)) { *lp = SvCUR(sv); return SvPVX(sv); } return sv_2pv(sv, lp); } char * Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp) { char *s; if (SvTHINKFIRST(sv) && !SvROK(sv)) sv_force_normal(sv); if (SvPOK(sv)) { *lp = SvCUR(sv); } else { if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { dTHR; Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), PL_op_name[PL_op->op_type]); } else s = sv_2pv(sv, lp); if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ STRLEN len = *lp; if (SvROK(sv)) sv_unref(sv); (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ SvGROW(sv, len + 1); Move(s,SvPVX(sv),len,char); SvCUR_set(sv, len); *SvEND(sv) = '\0'; } if (!SvPOK(sv)) { SvPOK_on(sv); /* validate pointer */ SvTAINT(sv); DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", PTR2UV(sv),SvPVX(sv))); } } return SvPVX(sv); } char * Perl_sv_pvbyte(pTHX_ SV *sv) { return sv_pv(sv); } char * Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) { return sv_pvn(sv,lp); } char * Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) { return sv_pvn_force(sv,lp); } char * Perl_sv_pvutf8(pTHX_ SV *sv) { return sv_pv(sv); } char * Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) { return sv_pvn(sv,lp); } char * Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) { return sv_pvn_force(sv,lp); } char * Perl_sv_reftype(pTHX_ SV *sv, int ob) { if (ob && SvOBJECT(sv)) return HvNAME(SvSTASH(sv)); else { switch (SvTYPE(sv)) { case SVt_NULL: case SVt_IV: case SVt_NV: case SVt_RV: case SVt_PV: case SVt_PVIV: case SVt_PVNV: case SVt_PVMG: case SVt_PVBM: if (SvROK(sv)) return "REF"; else return "SCALAR"; case SVt_PVLV: return "LVALUE"; case SVt_PVAV: return "ARRAY"; case SVt_PVHV: return "HASH"; case SVt_PVCV: return "CODE"; case SVt_PVGV: return "GLOB"; case SVt_PVFM: return "FORMAT"; default: return "UNKNOWN"; } } } /* =for apidoc sv_isobject Returns a boolean indicating whether the SV is an RV pointing to a blessed object. If the SV is not an RV, or if the object is not blessed, then this will return false. =cut */ int Perl_sv_isobject(pTHX_ SV *sv) { if (!sv) return 0; if (SvGMAGICAL(sv)) mg_get(sv); if (!SvROK(sv)) return 0; sv = (SV*)SvRV(sv); if (!SvOBJECT(sv)) return 0; return 1; } /* =for apidoc sv_isa Returns a boolean indicating whether the SV is blessed into the specified class. This does not check for subtypes; use C to verify an inheritance relationship. =cut */ int Perl_sv_isa(pTHX_ SV *sv, const char *name) { if (!sv) return 0; if (SvGMAGICAL(sv)) mg_get(sv); if (!SvROK(sv)) return 0; sv = (SV*)SvRV(sv); if (!SvOBJECT(sv)) return 0; return strEQ(HvNAME(SvSTASH(sv)), name); } /* =for apidoc newSVrv Creates a new SV for the RV, C, to point to. If C is not an RV then it will be upgraded to one. If C is non-null then the new SV will be blessed in the specified package. The new SV is returned and its reference count is 1. =cut */ SV* Perl_newSVrv(pTHX_ SV *rv, const char *classname) { dTHR; SV *sv; new_SV(sv); SV_CHECK_THINKFIRST(rv); SvAMAGIC_off(rv); if (SvTYPE(rv) < SVt_RV) sv_upgrade(rv, SVt_RV); (void)SvOK_off(rv); SvRV(rv) = sv; SvROK_on(rv); if (classname) { HV* stash = gv_stashpv(classname, TRUE); (void)sv_bless(rv, stash); } return sv; } /* =for apidoc sv_setref_pv Copies a pointer into a new SV, optionally blessing the SV. The C argument will be upgraded to an RV. That RV will be modified to point to the new SV. If the C argument is NULL then C will be placed into the SV. The C argument indicates the package for the blessing. Set C to C to avoid the blessing. The new SV will be returned and will have a reference count of 1. Do not use with other Perl types such as HV, AV, SV, CV, because those objects will become corrupted by the pointer copy process. Note that C copies the string while this copies the pointer. =cut */ SV* Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) { if (!pv) { sv_setsv(rv, &PL_sv_undef); SvSETMAGIC(rv); } else sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); return rv; } /* =for apidoc sv_setref_iv Copies an integer into a new SV, optionally blessing the SV. The C argument will be upgraded to an RV. That RV will be modified to point to the new SV. The C argument indicates the package for the blessing. Set C to C to avoid the blessing. The new SV will be returned and will have a reference count of 1. =cut */ SV* Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) { sv_setiv(newSVrv(rv,classname), iv); return rv; } /* =for apidoc sv_setref_nv Copies a double into a new SV, optionally blessing the SV. The C argument will be upgraded to an RV. That RV will be modified to point to the new SV. The C argument indicates the package for the blessing. Set C to C to avoid the blessing. The new SV will be returned and will have a reference count of 1. =cut */ SV* Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) { sv_setnv(newSVrv(rv,classname), nv); return rv; } /* =for apidoc sv_setref_pvn Copies a string into a new SV, optionally blessing the SV. The length of the string must be specified with C. The C argument will be upgraded to an RV. That RV will be modified to point to the new SV. The C argument indicates the package for the blessing. Set C to C to avoid the blessing. The new SV will be returned and will have a reference count of 1. Note that C copies the pointer while this copies the string. =cut */ SV* Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n) { sv_setpvn(newSVrv(rv,classname), pv, n); return rv; } /* =for apidoc sv_bless Blesses an SV into a specified package. The SV must be an RV. The package must be designated by its stash (see C). The reference count of the SV is unaffected. =cut */ SV* Perl_sv_bless(pTHX_ SV *sv, HV *stash) { dTHR; SV *tmpRef; if (!SvROK(sv)) Perl_croak(aTHX_ "Can't bless non-reference value"); tmpRef = SvRV(sv); if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { if (SvREADONLY(tmpRef)) Perl_croak(aTHX_ PL_no_modify); if (SvOBJECT(tmpRef)) { if (SvTYPE(tmpRef) != SVt_PVIO) --PL_sv_objcount; SvREFCNT_dec(SvSTASH(tmpRef)); } } SvOBJECT_on(tmpRef); if (SvTYPE(tmpRef) != SVt_PVIO) ++PL_sv_objcount; (void)SvUPGRADE(tmpRef, SVt_PVMG); SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash); if (Gv_AMG(stash)) SvAMAGIC_on(sv); else SvAMAGIC_off(sv); return sv; } STATIC void S_sv_unglob(pTHX_ SV *sv) { assert(SvTYPE(sv) == SVt_PVGV); SvFAKE_off(sv); if (GvGP(sv)) gp_free((GV*)sv); if (GvSTASH(sv)) { SvREFCNT_dec(GvSTASH(sv)); GvSTASH(sv) = Nullhv; } sv_unmagic(sv, '*'); Safefree(GvNAME(sv)); GvMULTI_off(sv); SvFLAGS(sv) &= ~SVTYPEMASK; SvFLAGS(sv) |= SVt_PVMG; } /* =for apidoc sv_unref Unsets the RV status of the SV, and decrements the reference count of whatever was being referenced by the RV. This can almost be thought of as a reversal of C. See C. =cut */ void Perl_sv_unref(pTHX_ SV *sv) { SV* rv = SvRV(sv); if (SvWEAKREF(sv)) { sv_del_backref(sv); SvWEAKREF_off(sv); SvRV(sv) = 0; return; } SvRV(sv) = 0; SvROK_off(sv); if (SvREFCNT(rv) != 1 || SvREADONLY(rv)) SvREFCNT_dec(rv); else sv_2mortal(rv); /* Schedule for freeing later */ } void Perl_sv_taint(pTHX_ SV *sv) { sv_magic((sv), Nullsv, 't', Nullch, 0); } void Perl_sv_untaint(pTHX_ SV *sv) { if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { MAGIC *mg = mg_find(sv, 't'); if (mg) mg->mg_len &= ~1; } } bool Perl_sv_tainted(pTHX_ SV *sv) { if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { MAGIC *mg = mg_find(sv, 't'); if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv)) return TRUE; } return FALSE; } /* =for apidoc sv_setpviv Copies an integer into the given SV, also updating its string value. Does not handle 'set' magic. See C. =cut */ void Perl_sv_setpviv(pTHX_ SV *sv, IV iv) { char buf[TYPE_CHARS(UV)]; char *ebuf; char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); sv_setpvn(sv, ptr, ebuf - ptr); } /* =for apidoc sv_setpviv_mg Like C, but also handles 'set' magic. =cut */ void Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv) { char buf[TYPE_CHARS(UV)]; char *ebuf; char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); sv_setpvn(sv, ptr, ebuf - ptr); SvSETMAGIC(sv); } #if defined(PERL_IMPLICIT_CONTEXT) void Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) { dTHX; va_list args; va_start(args, pat); sv_vsetpvf(sv, pat, &args); va_end(args); } void Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) { dTHX; va_list args; va_start(args, pat); sv_vsetpvf_mg(sv, pat, &args); va_end(args); } #endif /* =for apidoc sv_setpvf Processes its arguments like C and sets an SV to the formatted output. Does not handle 'set' magic. See C. =cut */ void Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) { va_list args; va_start(args, pat); sv_vsetpvf(sv, pat, &args); va_end(args); } void Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) { sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); } /* =for apidoc sv_setpvf_mg Like C, but also handles 'set' magic. =cut */ void Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) { va_list args; va_start(args, pat); sv_vsetpvf_mg(sv, pat, &args); va_end(args); } void Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) { sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); SvSETMAGIC(sv); } #if defined(PERL_IMPLICIT_CONTEXT) void Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) { dTHX; va_list args; va_start(args, pat); sv_vcatpvf(sv, pat, &args); va_end(args); } void Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) { dTHX; va_list args; va_start(args, pat); sv_vcatpvf_mg(sv, pat, &args); va_end(args); } #endif /* =for apidoc sv_catpvf Processes its arguments like C and appends the formatted output to an SV. Handles 'get' magic, but not 'set' magic. C must typically be called after calling this function to handle 'set' magic. =cut */ void Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) { va_list args; va_start(args, pat); sv_vcatpvf(sv, pat, &args); va_end(args); } void Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) { sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); } /* =for apidoc sv_catpvf_mg Like C, but also handles 'set' magic. =cut */ void Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) { va_list args; va_start(args, pat); sv_vcatpvf_mg(sv, pat, &args); va_end(args); } void Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) { sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); SvSETMAGIC(sv); } /* =for apidoc sv_vsetpvfn Works like C but copies the text into the SV instead of appending it. =cut */ void Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) { sv_setpvn(sv, "", 0); sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); } /* =for apidoc sv_vcatpvfn Processes its arguments like C and appends the formatted output to an SV. Uses an array of SVs if the C style variable argument list is missing (NULL). When running with taint checks enabled, indicates via C if results are untrustworthy (often due to the use of locales). =cut */ void Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) { dTHR; char *p; char *q; char *patend; STRLEN origlen; I32 svix = 0; static char nullstr[] = "(null)"; SV *argsv; /* no matter what, this is a string now */ (void)SvPV_force(sv, origlen); /* special-case "", "%s", and "%_" */ if (patlen == 0) return; if (patlen == 2 && pat[0] == '%') { switch (pat[1]) { case 's': if (args) { char *s = va_arg(*args, char*); sv_catpv(sv, s ? s : nullstr); } else if (svix < svmax) { sv_catsv(sv, *svargs); if (DO_UTF8(*svargs)) SvUTF8_on(sv); } return; case '_': if (args) { argsv = va_arg(*args, SV*); sv_catsv(sv, argsv); if (DO_UTF8(argsv)) SvUTF8_on(sv); return; } /* See comment on '_' below */ break; } } patend = (char*)pat + patlen; for (p = (char*)pat; p < patend; p = q) { bool alt = FALSE; bool left = FALSE; char fill = ' '; char plus = 0; char intsize = 0; STRLEN width = 0; STRLEN zeros = 0; bool has_precis = FALSE; STRLEN precis = 0; bool is_utf = FALSE; char esignbuf[4]; U8 utf8buf[10]; STRLEN esignlen = 0; char *eptr = Nullch; STRLEN elen = 0; /* Times 4: a decimal digit takes more than 3 binary digits. * NV_DIG: mantissa takes than many decimal digits. * Plus 32: Playing safe. */ char ebuf[IV_DIG * 4 + NV_DIG + 32]; /* large enough for "%#.#f" --chip */ /* what about long double NVs? --jhi */ char c; int i; unsigned base; IV iv; UV uv; NV nv; STRLEN have; STRLEN need; STRLEN gap; for (q = p; q < patend && *q != '%'; ++q) ; if (q > p) { sv_catpvn(sv, p, q - p); p = q; } if (q++ >= patend) break; /* FLAGS */ while (*q) { switch (*q) { case ' ': case '+': plus = *q++; continue; case '-': left = TRUE; q++; continue; case '0': fill = *q++; continue; case '#': alt = TRUE; q++; continue; default: break; } break; } /* WIDTH */ switch (*q) { case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': width = 0; while (isDIGIT(*q)) width = width * 10 + (*q++ - '0'); break; case '*': if (args) i = va_arg(*args, int); else i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; left |= (i < 0); width = (i < 0) ? -i : i; q++; break; } /* PRECISION */ if (*q == '.') { q++; if (*q == '*') { if (args) i = va_arg(*args, int); else i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; precis = (i < 0) ? 0 : i; q++; } else { precis = 0; while (isDIGIT(*q)) precis = precis * 10 + (*q++ - '0'); } has_precis = TRUE; } /* SIZE */ switch (*q) { #ifdef HAS_QUAD case 'L': /* Ld */ case 'q': /* qd */ intsize = 'q'; q++; break; #endif case 'l': #ifdef HAS_QUAD if (*(q + 1) == 'l') { /* lld */ intsize = 'q'; q += 2; break; } #endif /* FALL THROUGH */ case 'h': /* FALL THROUGH */ case 'V': intsize = *q++; break; } /* CONVERSION */ switch (c = *q++) { /* STRINGS */ case '%': eptr = q - 1; elen = 1; goto string; case 'c': if (args) uv = va_arg(*args, int); else uv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; if (uv >= 128 && PL_bigchar && !IN_BYTE) { eptr = (char*)utf8buf; elen = uv_to_utf8((U8*)eptr, uv) - utf8buf; is_utf = TRUE; } else { c = (char)uv; eptr = &c; elen = 1; } goto string; case 's': if (args) { eptr = va_arg(*args, char*); if (eptr) #ifdef MACOS_TRADITIONAL /* On MacOS, %#s format is used for Pascal strings */ if (alt) elen = *eptr++; else #endif elen = strlen(eptr); else { eptr = nullstr; elen = sizeof nullstr - 1; } } else if (svix < svmax) { argsv = svargs[svix++]; eptr = SvPVx(argsv, elen); if (DO_UTF8(argsv)) { if (has_precis && precis < elen) { I32 p = precis; sv_pos_u2b(argsv, &p, 0); /* sticks at end */ precis = p; } if (width) { /* fudge width (can't fudge elen) */ width += elen - sv_len_utf8(argsv); } is_utf = TRUE; } } goto string; case 'v': if (args) argsv = va_arg(*args, SV*); else if (svix < svmax) argsv = svargs[svix++]; { STRLEN len; U8 *str = (U8*)SvPVx(argsv,len); I32 vlen = len*3; SV *vsv = NEWSV(73,vlen); I32 ulen; U8 *vptr = (U8*)SvPVX(vsv); STRLEN vcur = 0; bool utf = DO_UTF8(argsv); if (utf) is_utf = TRUE; while (len) { UV uv; if (utf) uv = utf8_to_uv(str, &ulen); else { uv = *str; ulen = 1; } str += ulen; len -= ulen; eptr = ebuf + sizeof ebuf; if (elen >= vlen-1) { STRLEN off = vptr - (U8*)SvPVX(vsv); vlen *= 2; SvGROW(vsv, vlen); vptr = SvPVX(vsv) + off; } do { *--eptr = '0' + uv % 10; } while (uv /= 10); elen = (ebuf + sizeof ebuf) - eptr; memcpy(vptr, eptr, elen); vptr += elen; *vptr++ = '.'; vcur += elen + 1; } if (vcur) { vcur--; vptr[-1] = '\0'; } SvCUR_set(vsv,vcur); eptr = SvPVX(vsv); elen = vcur; } goto string; case '_': /* * The "%_" hack might have to be changed someday, * if ISO or ANSI decide to use '_' for something. * So we keep it hidden from users' code. */ if (!args) goto unknown; argsv = va_arg(*args,SV*); eptr = SvPVx(argsv, elen); if (DO_UTF8(argsv)) is_utf = TRUE; string: if (has_precis && elen > precis) elen = precis; break; /* INTEGERS */ case 'p': if (args) uv = PTR2UV(va_arg(*args, void*)); else uv = (svix < svmax) ? PTR2UV(svargs[svix++]) : 0; base = 16; goto integer; case 'D': #ifdef IV_IS_QUAD intsize = 'q'; #else intsize = 'l'; #endif /* FALL THROUGH */ case 'd': case 'i': if (args) { switch (intsize) { case 'h': iv = (short)va_arg(*args, int); break; default: iv = va_arg(*args, int); break; case 'l': iv = va_arg(*args, long); break; case 'V': iv = va_arg(*args, IV); break; #ifdef HAS_QUAD case 'q': iv = va_arg(*args, Quad_t); break; #endif } } else { iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; switch (intsize) { case 'h': iv = (short)iv; break; default: iv = (int)iv; break; case 'l': iv = (long)iv; break; case 'V': break; #ifdef HAS_QUAD case 'q': iv = (Quad_t)iv; break; #endif } } if (iv >= 0) { uv = iv; if (plus) esignbuf[esignlen++] = plus; } else { uv = -iv; esignbuf[esignlen++] = '-'; } base = 10; goto integer; case 'U': #ifdef IV_IS_QUAD intsize = 'q'; #else intsize = 'l'; #endif /* FALL THROUGH */ case 'u': base = 10; goto uns_integer; case 'b': base = 2; goto uns_integer; case 'O': #ifdef IV_IS_QUAD intsize = 'q'; #else intsize = 'l'; #endif /* FALL THROUGH */ case 'o': base = 8; goto uns_integer; case 'X': case 'x': base = 16; uns_integer: if (args) { switch (intsize) { case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; default: uv = va_arg(*args, unsigned); break; case 'l': uv = va_arg(*args, unsigned long); break; case 'V': uv = va_arg(*args, UV); break; #ifdef HAS_QUAD case 'q': uv = va_arg(*args, Quad_t); break; #endif } } else { uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0; switch (intsize) { case 'h': uv = (unsigned short)uv; break; default: uv = (unsigned)uv; break; case 'l': uv = (unsigned long)uv; break; case 'V': break; #ifdef HAS_QUAD case 'q': uv = (Quad_t)uv; break; #endif } } integer: eptr = ebuf + sizeof ebuf; switch (base) { unsigned dig; case 16: if (!uv) alt = FALSE; p = (char*)((c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef"); do { dig = uv & 15; *--eptr = p[dig]; } while (uv >>= 4); if (alt) { esignbuf[esignlen++] = '0'; esignbuf[esignlen++] = c; /* 'x' or 'X' */ } break; case 8: do { dig = uv & 7; *--eptr = '0' + dig; } while (uv >>= 3); if (alt && *eptr != '0') *--eptr = '0'; break; case 2: do { dig = uv & 1; *--eptr = '0' + dig; } while (uv >>= 1); if (alt) { esignbuf[esignlen++] = '0'; esignbuf[esignlen++] = 'b'; } break; default: /* it had better be ten or less */ #if defined(PERL_Y2KWARN) if (ckWARN(WARN_MISC)) { STRLEN n; char *s = SvPV(sv,n); if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' && (n == 2 || !isDIGIT(s[n-3]))) { Perl_warner(aTHX_ WARN_MISC, "Possible Y2K bug: %%%c %s", c, "format string following '19'"); } } #endif do { dig = uv % base; *--eptr = '0' + dig; } while (uv /= base); break; } elen = (ebuf + sizeof ebuf) - eptr; if (has_precis) { if (precis > elen) zeros = precis - elen; else if (precis == 0 && elen == 1 && *eptr == '0') elen = 0; } break; /* FLOATING POINT */ case 'F': c = 'f'; /* maybe %F isn't supported here */ /* FALL THROUGH */ case 'e': case 'E': case 'f': case 'g': case 'G': /* This is evil, but floating point is even more evil */ if (args) nv = va_arg(*args, NV); else nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0; need = 0; if (c != 'e' && c != 'E') { i = PERL_INT_MIN; (void)frexp(nv, &i); if (i == PERL_INT_MIN) Perl_die(aTHX_ "panic: frexp"); if (i > 0) need = BIT_DIGITS(i); } need += has_precis ? precis : 6; /* known default */ if (need < width) need = width; need += 20; /* fudge factor */ if (PL_efloatsize < need) { Safefree(PL_efloatbuf); PL_efloatsize = need + 20; /* more fudge */ New(906, PL_efloatbuf, PL_efloatsize, char); PL_efloatbuf[0] = '\0'; } eptr = ebuf + sizeof ebuf; *--eptr = '\0'; *--eptr = c; #ifdef USE_LONG_DOUBLE { char* p = PERL_PRIfldbl + sizeof(PERL_PRIfldbl) - 3; while (p >= PERL_PRIfldbl) { *--eptr = *p--; } } #endif if (has_precis) { base = precis; do { *--eptr = '0' + (base % 10); } while (base /= 10); *--eptr = '.'; } if (width) { base = width; do { *--eptr = '0' + (base % 10); } while (base /= 10); } if (fill == '0') *--eptr = fill; if (left) *--eptr = '-'; if (plus) *--eptr = plus; if (alt) *--eptr = '#'; *--eptr = '%'; { RESTORE_NUMERIC_STANDARD(); (void)sprintf(PL_efloatbuf, eptr, nv); RESTORE_NUMERIC_LOCAL(); } eptr = PL_efloatbuf; elen = strlen(PL_efloatbuf); break; /* SPECIAL */ case 'n': i = SvCUR(sv) - origlen; if (args) { switch (intsize) { case 'h': *(va_arg(*args, short*)) = i; break; default: *(va_arg(*args, int*)) = i; break; case 'l': *(va_arg(*args, long*)) = i; break; case 'V': *(va_arg(*args, IV*)) = i; break; #ifdef HAS_QUAD case 'q': *(va_arg(*args, Quad_t*)) = i; break; #endif } } else if (svix < svmax) sv_setuv(svargs[svix++], (UV)i); continue; /* not "break" */ /* UNKNOWN */ default: unknown: if (!args && ckWARN(WARN_PRINTF) && (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { SV *msg = sv_newmortal(); Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %s: ", (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf"); if (c) { if (isPRINT(c)) Perl_sv_catpvf(aTHX_ msg, "\"%%%c\"", c & 0xFF); else Perl_sv_catpvf(aTHX_ msg, "\"%%\\%03"UVof"\"", (UV)c & 0xFF); } else sv_catpv(msg, "end of string"); Perl_warner(aTHX_ WARN_PRINTF, "%"SVf, msg); /* yes, this is reentrant */ } /* output mangled stuff ... */ if (c == '\0') --q; eptr = p; elen = q - p; /* ... right here, because formatting flags should not apply */ SvGROW(sv, SvCUR(sv) + elen + 1); p = SvEND(sv); memcpy(p, eptr, elen); p += elen; *p = '\0'; SvCUR(sv) = p - SvPVX(sv); continue; /* not "break" */ } have = esignlen + zeros + elen; need = (have > width ? have : width); gap = need - have; SvGROW(sv, SvCUR(sv) + need + 1); p = SvEND(sv); if (esignlen && fill == '0') { for (i = 0; i < esignlen; i++) *p++ = esignbuf[i]; } if (gap && !left) { memset(p, fill, gap); p += gap; } if (esignlen && fill != '0') { for (i = 0; i < esignlen; i++) *p++ = esignbuf[i]; } if (zeros) { for (i = zeros; i; i--) *p++ = '0'; } if (elen) { memcpy(p, eptr, elen); p += elen; } if (gap && left) { memset(p, ' ', gap); p += gap; } if (is_utf) SvUTF8_on(sv); *p = '\0'; SvCUR(sv) = p - SvPVX(sv); } } #if defined(USE_ITHREADS) #if defined(USE_THREADS) # include "error: USE_THREADS and USE_ITHREADS are incompatible" #endif #ifndef OpREFCNT_inc # define OpREFCNT_inc(o) ((o) ? (++(o)->op_targ, (o)) : Nullop) #endif #ifndef GpREFCNT_inc # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) #endif #define sv_dup_inc(s) SvREFCNT_inc(sv_dup(s)) #define av_dup(s) (AV*)sv_dup((SV*)s) #define av_dup_inc(s) (AV*)SvREFCNT_inc(sv_dup((SV*)s)) #define hv_dup(s) (HV*)sv_dup((SV*)s) #define hv_dup_inc(s) (HV*)SvREFCNT_inc(sv_dup((SV*)s)) #define cv_dup(s) (CV*)sv_dup((SV*)s) #define cv_dup_inc(s) (CV*)SvREFCNT_inc(sv_dup((SV*)s)) #define io_dup(s) (IO*)sv_dup((SV*)s) #define io_dup_inc(s) (IO*)SvREFCNT_inc(sv_dup((SV*)s)) #define gv_dup(s) (GV*)sv_dup((SV*)s) #define gv_dup_inc(s) (GV*)SvREFCNT_inc(sv_dup((SV*)s)) #define SAVEPV(p) (p ? savepv(p) : Nullch) #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) REGEXP * Perl_re_dup(pTHX_ REGEXP *r) { /* XXX fix when pmop->op_pmregexp becomes shared */ return ReREFCNT_inc(r); } PerlIO * Perl_fp_dup(pTHX_ PerlIO *fp, char type) { PerlIO *ret; if (!fp) return (PerlIO*)NULL; /* look for it in the table first */ ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); if (ret) return ret; /* create anew and remember what it is */ ret = PerlIO_fdupopen(fp); ptr_table_store(PL_ptr_table, fp, ret); return ret; } DIR * Perl_dirp_dup(pTHX_ DIR *dp) { if (!dp) return (DIR*)NULL; /* XXX TODO */ return dp; } GP * Perl_gp_dup(pTHX_ GP *gp) { GP *ret; if (!gp) return (GP*)NULL; /* look for it in the table first */ ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); if (ret) return ret; /* create anew and remember what it is */ Newz(0, ret, 1, GP); ptr_table_store(PL_ptr_table, gp, ret); /* clone */ ret->gp_refcnt = 0; /* must be before any other dups! */ ret->gp_sv = sv_dup_inc(gp->gp_sv); ret->gp_io = io_dup_inc(gp->gp_io); ret->gp_form = cv_dup_inc(gp->gp_form); ret->gp_av = av_dup_inc(gp->gp_av); ret->gp_hv = hv_dup_inc(gp->gp_hv); ret->gp_egv = gv_dup(gp->gp_egv); /* GvEGV is not refcounted */ ret->gp_cv = cv_dup_inc(gp->gp_cv); ret->gp_cvgen = gp->gp_cvgen; ret->gp_flags = gp->gp_flags; ret->gp_line = gp->gp_line; ret->gp_file = gp->gp_file; /* points to COP.cop_file */ return ret; } MAGIC * Perl_mg_dup(pTHX_ MAGIC *mg) { MAGIC *mgret = (MAGIC*)NULL; MAGIC *mgprev; if (!mg) return (MAGIC*)NULL; /* look for it in the table first */ mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); if (mgret) return mgret; for (; mg; mg = mg->mg_moremagic) { MAGIC *nmg; Newz(0, nmg, 1, MAGIC); if (!mgret) mgret = nmg; else mgprev->mg_moremagic = nmg; nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ nmg->mg_private = mg->mg_private; nmg->mg_type = mg->mg_type; nmg->mg_flags = mg->mg_flags; if (mg->mg_type == 'r') { nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj); } else { nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) ? sv_dup_inc(mg->mg_obj) : sv_dup(mg->mg_obj); } nmg->mg_len = mg->mg_len; nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ if (mg->mg_ptr && mg->mg_type != 'g') { if (mg->mg_len >= 0) { nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); if (mg->mg_type == 'c' && AMT_AMAGIC((AMT*)mg->mg_ptr)) { AMT *amtp = (AMT*)mg->mg_ptr; AMT *namtp = (AMT*)nmg->mg_ptr; I32 i; for (i = 1; i < NofAMmeth; i++) { namtp->table[i] = cv_dup_inc(amtp->table[i]); } } } else if (mg->mg_len == HEf_SVKEY) nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr); } mgprev = nmg; } return mgret; } PTR_TBL_t * Perl_ptr_table_new(pTHX) { PTR_TBL_t *tbl; Newz(0, tbl, 1, PTR_TBL_t); tbl->tbl_max = 511; tbl->tbl_items = 0; Newz(0, tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); return tbl; } void * Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv) { PTR_TBL_ENT_t *tblent; UV hash = PTR2UV(sv); assert(tbl); tblent = tbl->tbl_ary[hash & tbl->tbl_max]; for (; tblent; tblent = tblent->next) { if (tblent->oldval == sv) return tblent->newval; } return (void*)NULL; } void Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv) { PTR_TBL_ENT_t *tblent, **otblent; /* XXX this may be pessimal on platforms where pointers aren't good * hash values e.g. if they grow faster in the most significant * bits */ UV hash = PTR2UV(oldv); bool i = 1; assert(tbl); otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; for (tblent = *otblent; tblent; i=0, tblent = tblent->next) { if (tblent->oldval == oldv) { tblent->newval = newv; tbl->tbl_items++; return; } } Newz(0, tblent, 1, PTR_TBL_ENT_t); tblent->oldval = oldv; tblent->newval = newv; tblent->next = *otblent; *otblent = tblent; tbl->tbl_items++; if (i && tbl->tbl_items > tbl->tbl_max) ptr_table_split(tbl); } void Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) { PTR_TBL_ENT_t **ary = tbl->tbl_ary; UV oldsize = tbl->tbl_max + 1; UV newsize = oldsize * 2; UV i; Renew(ary, newsize, PTR_TBL_ENT_t*); Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); tbl->tbl_max = --newsize; tbl->tbl_ary = ary; for (i=0; i < oldsize; i++, ary++) { PTR_TBL_ENT_t **curentp, **entp, *ent; if (!*ary) continue; curentp = ary + oldsize; for (entp = ary, ent = *ary; ent; ent = *entp) { if ((newsize & PTR2UV(ent->oldval)) != i) { *entp = ent->next; ent->next = *curentp; *curentp = ent; continue; } else entp = &ent->next; } } } #ifdef DEBUGGING char *PL_watch_pvx; #endif SV * Perl_sv_dup(pTHX_ SV *sstr) { U32 sflags; int dtype; int stype; SV *dstr; if (!sstr || SvTYPE(sstr) == SVTYPEMASK) return Nullsv; /* look for it in the table first */ dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); if (dstr) return dstr; /* create anew and remember what it is */ new_SV(dstr); ptr_table_store(PL_ptr_table, sstr, dstr); /* clone */ SvFLAGS(dstr) = SvFLAGS(sstr); SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ SvREFCNT(dstr) = 0; /* must be before any other dups! */ #ifdef DEBUGGING if (SvANY(sstr) && PL_watch_pvx && SvPVX(sstr) == PL_watch_pvx) PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", PL_watch_pvx, SvPVX(sstr)); #endif switch (SvTYPE(sstr)) { case SVt_NULL: SvANY(dstr) = NULL; break; case SVt_IV: SvANY(dstr) = new_XIV(); SvIVX(dstr) = SvIVX(sstr); break; case SVt_NV: SvANY(dstr) = new_XNV(); SvNVX(dstr) = SvNVX(sstr); break; case SVt_RV: SvANY(dstr) = new_XRV(); SvRV(dstr) = sv_dup_inc(SvRV(sstr)); break; case SVt_PV: SvANY(dstr) = new_XPV(); SvCUR(dstr) = SvCUR(sstr); SvLEN(dstr) = SvLEN(sstr); if (SvROK(sstr)) SvRV(dstr) = sv_dup_inc(SvRV(sstr)); else if (SvPVX(sstr) && SvLEN(sstr)) SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); else SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ break; case SVt_PVIV: SvANY(dstr) = new_XPVIV(); SvCUR(dstr) = SvCUR(sstr); SvLEN(dstr) = SvLEN(sstr); SvIVX(dstr) = SvIVX(sstr); if (SvROK(sstr)) SvRV(dstr) = sv_dup_inc(SvRV(sstr)); else if (SvPVX(sstr) && SvLEN(sstr)) SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); else SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ break; case SVt_PVNV: SvANY(dstr) = new_XPVNV(); SvCUR(dstr) = SvCUR(sstr); SvLEN(dstr) = SvLEN(sstr); SvIVX(dstr) = SvIVX(sstr); SvNVX(dstr) = SvNVX(sstr); if (SvROK(sstr)) SvRV(dstr) = sv_dup_inc(SvRV(sstr)); else if (SvPVX(sstr) && SvLEN(sstr)) SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); else SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ break; case SVt_PVMG: SvANY(dstr) = new_XPVMG(); SvCUR(dstr) = SvCUR(sstr); SvLEN(dstr) = SvLEN(sstr); SvIVX(dstr) = SvIVX(sstr); SvNVX(dstr) = SvNVX(sstr); SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); if (SvROK(sstr)) SvRV(dstr) = sv_dup_inc(SvRV(sstr)); else if (SvPVX(sstr) && SvLEN(sstr)) SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); else SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ break; case SVt_PVBM: SvANY(dstr) = new_XPVBM(); SvCUR(dstr) = SvCUR(sstr); SvLEN(dstr) = SvLEN(sstr); SvIVX(dstr) = SvIVX(sstr); SvNVX(dstr) = SvNVX(sstr); SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); if (SvROK(sstr)) SvRV(dstr) = sv_dup_inc(SvRV(sstr)); else if (SvPVX(sstr) && SvLEN(sstr)) SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); else SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ BmRARE(dstr) = BmRARE(sstr); BmUSEFUL(dstr) = BmUSEFUL(sstr); BmPREVIOUS(dstr)= BmPREVIOUS(sstr); break; case SVt_PVLV: SvANY(dstr) = new_XPVLV(); SvCUR(dstr) = SvCUR(sstr); SvLEN(dstr) = SvLEN(sstr); SvIVX(dstr) = SvIVX(sstr); SvNVX(dstr) = SvNVX(sstr); SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); if (SvROK(sstr)) SvRV(dstr) = sv_dup_inc(SvRV(sstr)); else if (SvPVX(sstr) && SvLEN(sstr)) SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); else SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */ LvTARGLEN(dstr) = LvTARGLEN(sstr); LvTARG(dstr) = sv_dup_inc(LvTARG(sstr)); LvTYPE(dstr) = LvTYPE(sstr); break; case SVt_PVGV: SvANY(dstr) = new_XPVGV(); SvCUR(dstr) = SvCUR(sstr); SvLEN(dstr) = SvLEN(sstr); SvIVX(dstr) = SvIVX(sstr); SvNVX(dstr) = SvNVX(sstr); SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); if (SvROK(sstr)) SvRV(dstr) = sv_dup_inc(SvRV(sstr)); else if (SvPVX(sstr) && SvLEN(sstr)) SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); else SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ GvNAMELEN(dstr) = GvNAMELEN(sstr); GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr)); GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr)); GvFLAGS(dstr) = GvFLAGS(sstr); GvGP(dstr) = gp_dup(GvGP(sstr)); (void)GpREFCNT_inc(GvGP(dstr)); break; case SVt_PVIO: SvANY(dstr) = new_XPVIO(); SvCUR(dstr) = SvCUR(sstr); SvLEN(dstr) = SvLEN(sstr); SvIVX(dstr) = SvIVX(sstr); SvNVX(dstr) = SvNVX(sstr); SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); if (SvROK(sstr)) SvRV(dstr) = sv_dup_inc(SvRV(sstr)); else if (SvPVX(sstr) && SvLEN(sstr)) SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); else SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr)); if (IoOFP(sstr) == IoIFP(sstr)) IoOFP(dstr) = IoIFP(dstr); else IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr)); /* PL_rsfp_filters entries have fake IoDIRP() */ if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP)) IoDIRP(dstr) = dirp_dup(IoDIRP(sstr)); else IoDIRP(dstr) = IoDIRP(sstr); IoLINES(dstr) = IoLINES(sstr); IoPAGE(dstr) = IoPAGE(sstr); IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr); IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr); IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr)); IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr)); IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr)); IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr)); IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr)); IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr)); IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr); IoTYPE(dstr) = IoTYPE(sstr); IoFLAGS(dstr) = IoFLAGS(sstr); break; case SVt_PVAV: SvANY(dstr) = new_XPVAV(); SvCUR(dstr) = SvCUR(sstr); SvLEN(dstr) = SvLEN(sstr); SvIVX(dstr) = SvIVX(sstr); SvNVX(dstr) = SvNVX(sstr); SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr)); AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr); if (AvARRAY((AV*)sstr)) { SV **dst_ary, **src_ary; SSize_t items = AvFILLp((AV*)sstr) + 1; src_ary = AvARRAY((AV*)sstr); Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*); ptr_table_store(PL_ptr_table, src_ary, dst_ary); SvPVX(dstr) = (char*)dst_ary; AvALLOC((AV*)dstr) = dst_ary; if (AvREAL((AV*)sstr)) { while (items-- > 0) *dst_ary++ = sv_dup_inc(*src_ary++); } else { while (items-- > 0) *dst_ary++ = sv_dup(*src_ary++); } items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); while (items-- > 0) { *dst_ary++ = &PL_sv_undef; } } else { SvPVX(dstr) = Nullch; AvALLOC((AV*)dstr) = (SV**)NULL; } break; case SVt_PVHV: SvANY(dstr) = new_XPVHV(); SvCUR(dstr) = SvCUR(sstr); SvLEN(dstr) = SvLEN(sstr); SvIVX(dstr) = SvIVX(sstr); SvNVX(dstr) = SvNVX(sstr); SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); HvRITER((HV*)dstr) = HvRITER((HV*)sstr); if (HvARRAY((HV*)sstr)) { HE *entry; STRLEN i = 0; XPVHV *dxhv = (XPVHV*)SvANY(dstr); XPVHV *sxhv = (XPVHV*)SvANY(sstr); Newz(0, dxhv->xhv_array, PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char); while (i <= sxhv->xhv_max) { ((HE**)dxhv->xhv_array)[i] = he_dup(((HE**)sxhv->xhv_array)[i], !!HvSHAREKEYS(sstr)); ++i; } dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, !!HvSHAREKEYS(sstr)); } else { SvPVX(dstr) = Nullch; HvEITER((HV*)dstr) = (HE*)NULL; } HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */ HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr)); break; case SVt_PVFM: SvANY(dstr) = new_XPVFM(); FmLINES(dstr) = FmLINES(sstr); goto dup_pvcv; /* NOTREACHED */ case SVt_PVCV: SvANY(dstr) = new_XPVCV(); dup_pvcv: SvCUR(dstr) = SvCUR(sstr); SvLEN(dstr) = SvLEN(sstr); SvIVX(dstr) = SvIVX(sstr); SvNVX(dstr) = SvNVX(sstr); SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); if (SvPVX(sstr) && SvLEN(sstr)) SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); else SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ CvSTASH(dstr) = hv_dup(CvSTASH(sstr));/* NOTE: not refcounted */ CvSTART(dstr) = CvSTART(sstr); CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr)); CvXSUB(dstr) = CvXSUB(sstr); CvXSUBANY(dstr) = CvXSUBANY(sstr); CvGV(dstr) = gv_dup_inc(CvGV(sstr)); CvDEPTH(dstr) = CvDEPTH(sstr); if (CvPADLIST(sstr) && !AvREAL(CvPADLIST(sstr))) { /* XXX padlists are real, but pretend to be not */ AvREAL_on(CvPADLIST(sstr)); CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr)); AvREAL_off(CvPADLIST(sstr)); AvREAL_off(CvPADLIST(dstr)); } else CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr)); CvOUTSIDE(dstr) = cv_dup_inc(CvOUTSIDE(sstr)); CvFLAGS(dstr) = CvFLAGS(sstr); break; default: Perl_croak(aTHX_ "Bizarre SvTYPE [%d]", SvTYPE(sstr)); break; } if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) ++PL_sv_objcount; return dstr; } PERL_CONTEXT * Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max) { PERL_CONTEXT *ncxs; if (!cxs) return (PERL_CONTEXT*)NULL; /* look for it in the table first */ ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); if (ncxs) return ncxs; /* create anew and remember what it is */ Newz(56, ncxs, max + 1, PERL_CONTEXT); ptr_table_store(PL_ptr_table, cxs, ncxs); while (ix >= 0) { PERL_CONTEXT *cx = &cxs[ix]; PERL_CONTEXT *ncx = &ncxs[ix]; ncx->cx_type = cx->cx_type; if (CxTYPE(cx) == CXt_SUBST) { Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); } else { ncx->blk_oldsp = cx->blk_oldsp; ncx->blk_oldcop = cx->blk_oldcop; ncx->blk_oldretsp = cx->blk_oldretsp; ncx->blk_oldmarksp = cx->blk_oldmarksp; ncx->blk_oldscopesp = cx->blk_oldscopesp; ncx->blk_oldpm = cx->blk_oldpm; ncx->blk_gimme = cx->blk_gimme; switch (CxTYPE(cx)) { case CXt_SUB: ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 ? cv_dup_inc(cx->blk_sub.cv) : cv_dup(cx->blk_sub.cv)); ncx->blk_sub.argarray = (cx->blk_sub.hasargs ? av_dup_inc(cx->blk_sub.argarray) : Nullav); ncx->blk_sub.savearray = av_dup(cx->blk_sub.savearray); ncx->blk_sub.olddepth = cx->blk_sub.olddepth; ncx->blk_sub.hasargs = cx->blk_sub.hasargs; ncx->blk_sub.lval = cx->blk_sub.lval; break; case CXt_EVAL: ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; ncx->blk_eval.old_name = SAVEPV(cx->blk_eval.old_name); ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text); break; case CXt_LOOP: ncx->blk_loop.label = cx->blk_loop.label; ncx->blk_loop.resetsp = cx->blk_loop.resetsp; ncx->blk_loop.redo_op = cx->blk_loop.redo_op; ncx->blk_loop.next_op = cx->blk_loop.next_op; ncx->blk_loop.last_op = cx->blk_loop.last_op; ncx->blk_loop.iterdata = (CxPADLOOP(cx) ? cx->blk_loop.iterdata : gv_dup((GV*)cx->blk_loop.iterdata)); ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave); ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval); ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary); ncx->blk_loop.iterix = cx->blk_loop.iterix; ncx->blk_loop.itermax = cx->blk_loop.itermax; break; case CXt_FORMAT: ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv); ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv); ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv); ncx->blk_sub.hasargs = cx->blk_sub.hasargs; break; case CXt_BLOCK: case CXt_NULL: break; } } --ix; } return ncxs; } PERL_SI * Perl_si_dup(pTHX_ PERL_SI *si) { PERL_SI *nsi; if (!si) return (PERL_SI*)NULL; /* look for it in the table first */ nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); if (nsi) return nsi; /* create anew and remember what it is */ Newz(56, nsi, 1, PERL_SI); ptr_table_store(PL_ptr_table, si, nsi); nsi->si_stack = av_dup_inc(si->si_stack); nsi->si_cxix = si->si_cxix; nsi->si_cxmax = si->si_cxmax; nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax); nsi->si_type = si->si_type; nsi->si_prev = si_dup(si->si_prev); nsi->si_next = si_dup(si->si_next); nsi->si_markoff = si->si_markoff; return nsi; } #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) #define TOPINT(ss,ix) ((ss)[ix].any_i32) #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) #define TOPLONG(ss,ix) ((ss)[ix].any_long) #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) #define TOPIV(ss,ix) ((ss)[ix].any_iv) #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) /* XXXXX todo */ #define pv_dup_inc(p) SAVEPV(p) #define pv_dup(p) SAVEPV(p) #define svp_dup_inc(p,pp) any_dup(p,pp) void * Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl) { void *ret; if (!v) return (void*)NULL; /* look for it in the table first */ ret = ptr_table_fetch(PL_ptr_table, v); if (ret) return ret; /* see if it is part of the interpreter structure */ if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) ret = (void*)(((char*)aTHXo) + (((char*)v) - (char*)proto_perl)); else ret = v; return ret; } ANY * Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl) { ANY *ss = proto_perl->Tsavestack; I32 ix = proto_perl->Tsavestack_ix; I32 max = proto_perl->Tsavestack_max; ANY *nss; SV *sv; GV *gv; AV *av; HV *hv; void* ptr; int intval; long longval; GP *gp; IV iv; I32 i; char *c; void (*dptr) (void*); void (*dxptr) (pTHXo_ void*); Newz(54, nss, max, ANY); while (ix > 0) { i = POPINT(ss,ix); TOPINT(nss,ix) = i; switch (i) { case SAVEt_ITEM: /* normal string */ sv = (SV*)POPPTR(ss,ix); TOPPTR(nss,ix) = sv_dup_inc(sv); sv = (SV*)POPPTR(ss,ix); TOPPTR(nss,ix) = sv_dup_inc(sv); break; case SAVEt_SV: /* scalar reference */ sv = (SV*)POPPTR(ss,ix); TOPPTR(nss,ix) = sv_dup_inc(sv); gv = (GV*)POPPTR(ss,ix); TOPPTR(nss,ix) = gv_dup_inc(gv); break; case SAVEt_GENERIC_SVREF: /* generic sv */ case SAVEt_SVREF: /* scalar reference */ sv = (SV*)POPPTR(ss,ix); TOPPTR(nss,ix) = sv_dup_inc(sv); ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ break; case SAVEt_AV: /* array reference */ av = (AV*)POPPTR(ss,ix); TOPPTR(nss,ix) = av_dup_inc(av); gv = (GV*)POPPTR(ss,ix); TOPPTR(nss,ix) = gv_dup(gv); break; case SAVEt_HV: /* hash reference */ hv = (HV*)POPPTR(ss,ix); TOPPTR(nss,ix) = hv_dup_inc(hv); gv = (GV*)POPPTR(ss,ix); TOPPTR(nss,ix) = gv_dup(gv); break; case SAVEt_INT: /* int reference */ ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); intval = (int)POPINT(ss,ix); TOPINT(nss,ix) = intval; break; case SAVEt_LONG: /* long reference */ ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); longval = (long)POPLONG(ss,ix); TOPLONG(nss,ix) = longval; break; case SAVEt_I32: /* I32 reference */ case SAVEt_I16: /* I16 reference */ case SAVEt_I8: /* I8 reference */ ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); i = POPINT(ss,ix); TOPINT(nss,ix) = i; break; case SAVEt_IV: /* IV reference */ ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); iv = POPIV(ss,ix); TOPIV(nss,ix) = iv; break; case SAVEt_SPTR: /* SV* reference */ ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); sv = (SV*)POPPTR(ss,ix); TOPPTR(nss,ix) = sv_dup(sv); break; case SAVEt_VPTR: /* random* reference */ ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); break; case SAVEt_PPTR: /* char* reference */ ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); c = (char*)POPPTR(ss,ix); TOPPTR(nss,ix) = pv_dup(c); break; case SAVEt_HPTR: /* HV* reference */ ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); hv = (HV*)POPPTR(ss,ix); TOPPTR(nss,ix) = hv_dup(hv); break; case SAVEt_APTR: /* AV* reference */ ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); av = (AV*)POPPTR(ss,ix); TOPPTR(nss,ix) = av_dup(av); break; case SAVEt_NSTAB: gv = (GV*)POPPTR(ss,ix); TOPPTR(nss,ix) = gv_dup(gv); break; case SAVEt_GP: /* scalar reference */ gp = (GP*)POPPTR(ss,ix); TOPPTR(nss,ix) = gp = gp_dup(gp); (void)GpREFCNT_inc(gp); gv = (GV*)POPPTR(ss,ix); TOPPTR(nss,ix) = gv_dup_inc(c); c = (char*)POPPTR(ss,ix); TOPPTR(nss,ix) = pv_dup(c); iv = POPIV(ss,ix); TOPIV(nss,ix) = iv; iv = POPIV(ss,ix); TOPIV(nss,ix) = iv; break; case SAVEt_FREESV: sv = (SV*)POPPTR(ss,ix); TOPPTR(nss,ix) = sv_dup_inc(sv); break; case SAVEt_FREEOP: ptr = POPPTR(ss,ix); if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { /* these are assumed to be refcounted properly */ switch (((OP*)ptr)->op_type) { case OP_LEAVESUB: case OP_LEAVESUBLV: case OP_LEAVEEVAL: case OP_LEAVE: case OP_SCOPE: case OP_LEAVEWRITE: TOPPTR(nss,ix) = any_dup(ptr, proto_perl); break; default: TOPPTR(nss,ix) = Nullop; break; } } else TOPPTR(nss,ix) = Nullop; break; case SAVEt_FREEPV: c = (char*)POPPTR(ss,ix); TOPPTR(nss,ix) = pv_dup_inc(c); break; case SAVEt_CLEARSV: longval = POPLONG(ss,ix); TOPLONG(nss,ix) = longval; break; case SAVEt_DELETE: hv = (HV*)POPPTR(ss,ix); TOPPTR(nss,ix) = hv_dup_inc(hv); c = (char*)POPPTR(ss,ix); TOPPTR(nss,ix) = pv_dup_inc(c); i = POPINT(ss,ix); TOPINT(nss,ix) = i; break; case SAVEt_DESTRUCTOR: ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ dptr = POPDPTR(ss,ix); TOPDPTR(nss,ix) = (void (*)(void*))any_dup(dptr, proto_perl); break; case SAVEt_DESTRUCTOR_X: ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ dxptr = POPDXPTR(ss,ix); TOPDXPTR(nss,ix) = (void (*)(pTHXo_ void*))any_dup(dxptr, proto_perl); break; case SAVEt_REGCONTEXT: case SAVEt_ALLOC: i = POPINT(ss,ix); TOPINT(nss,ix) = i; ix -= i; break; case SAVEt_STACK_POS: /* Position on Perl stack */ i = POPINT(ss,ix); TOPINT(nss,ix) = i; break; case SAVEt_AELEM: /* array element */ sv = (SV*)POPPTR(ss,ix); TOPPTR(nss,ix) = sv_dup_inc(sv); i = POPINT(ss,ix); TOPINT(nss,ix) = i; av = (AV*)POPPTR(ss,ix); TOPPTR(nss,ix) = av_dup_inc(av); break; case SAVEt_HELEM: /* hash element */ sv = (SV*)POPPTR(ss,ix); TOPPTR(nss,ix) = sv_dup_inc(sv); sv = (SV*)POPPTR(ss,ix); TOPPTR(nss,ix) = sv_dup_inc(sv); hv = (HV*)POPPTR(ss,ix); TOPPTR(nss,ix) = hv_dup_inc(hv); break; case SAVEt_OP: ptr = POPPTR(ss,ix); TOPPTR(nss,ix) = ptr; break; case SAVEt_HINTS: i = POPINT(ss,ix); TOPINT(nss,ix) = i; break; case SAVEt_COMPPAD: av = (AV*)POPPTR(ss,ix); TOPPTR(nss,ix) = av_dup(av); break; default: Perl_croak(aTHX_ "panic: ss_dup inconsistency"); } } return nss; } #ifdef PERL_OBJECT #include "XSUB.h" #endif PerlInterpreter * perl_clone(PerlInterpreter *proto_perl, UV flags) { #ifdef PERL_OBJECT CPerlObj *pPerl = (CPerlObj*)proto_perl; #endif #ifdef PERL_IMPLICIT_SYS return perl_clone_using(proto_perl, flags, proto_perl->IMem, proto_perl->IMemShared, proto_perl->IMemParse, proto_perl->IEnv, proto_perl->IStdIO, proto_perl->ILIO, proto_perl->IDir, proto_perl->ISock, proto_perl->IProc); } PerlInterpreter * perl_clone_using(PerlInterpreter *proto_perl, UV flags, struct IPerlMem* ipM, struct IPerlMem* ipMS, struct IPerlMem* ipMP, struct IPerlEnv* ipE, struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, struct IPerlDir* ipD, struct IPerlSock* ipS, struct IPerlProc* ipP) { /* XXX many of the string copies here can be optimized if they're * constants; they need to be allocated as common memory and just * their pointers copied. */ IV i; SV *sv; SV **svp; # ifdef PERL_OBJECT CPerlObj *pPerl = new(ipM) CPerlObj(ipM, ipMS, ipMP, ipE, ipStd, ipLIO, ipD, ipS, ipP); PERL_SET_INTERP(pPerl); # else /* !PERL_OBJECT */ PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); PERL_SET_INTERP(my_perl); # ifdef DEBUGGING memset(my_perl, 0xab, sizeof(PerlInterpreter)); PL_markstack = 0; PL_scopestack = 0; PL_savestack = 0; PL_retstack = 0; # else /* !DEBUGGING */ Zero(my_perl, 1, PerlInterpreter); # endif /* DEBUGGING */ /* host pointers */ PL_Mem = ipM; PL_MemShared = ipMS; PL_MemParse = ipMP; PL_Env = ipE; PL_StdIO = ipStd; PL_LIO = ipLIO; PL_Dir = ipD; PL_Sock = ipS; PL_Proc = ipP; # endif /* PERL_OBJECT */ #else /* !PERL_IMPLICIT_SYS */ IV i; SV *sv; SV **svp; PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); PERL_SET_INTERP(my_perl); # ifdef DEBUGGING memset(my_perl, 0xab, sizeof(PerlInterpreter)); PL_markstack = 0; PL_scopestack = 0; PL_savestack = 0; PL_retstack = 0; # else /* !DEBUGGING */ Zero(my_perl, 1, PerlInterpreter); # endif /* DEBUGGING */ #endif /* PERL_IMPLICIT_SYS */ /* arena roots */ PL_xiv_arenaroot = NULL; PL_xiv_root = NULL; PL_xnv_root = NULL; PL_xrv_root = NULL; PL_xpv_root = NULL; PL_xpviv_root = NULL; PL_xpvnv_root = NULL; PL_xpvcv_root = NULL; PL_xpvav_root = NULL; PL_xpvhv_root = NULL; PL_xpvmg_root = NULL; PL_xpvlv_root = NULL; PL_xpvbm_root = NULL; PL_he_root = NULL; PL_nice_chunk = NULL; PL_nice_chunk_size = 0; PL_sv_count = 0; PL_sv_objcount = 0; PL_sv_root = Nullsv; PL_sv_arenaroot = Nullsv; PL_debug = proto_perl->Idebug; /* create SV map for pointer relocation */ PL_ptr_table = ptr_table_new(); /* initialize these special pointers as early as possible */ SvANY(&PL_sv_undef) = NULL; SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); #ifdef PERL_OBJECT SvUPGRADE(&PL_sv_no, SVt_PVNV); #else SvANY(&PL_sv_no) = new_XPVNV(); #endif SvREFCNT(&PL_sv_no) = (~(U32)0)/2; SvFLAGS(&PL_sv_no) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; SvPVX(&PL_sv_no) = SAVEPVN(PL_No, 0); SvCUR(&PL_sv_no) = 0; SvLEN(&PL_sv_no) = 1; SvNVX(&PL_sv_no) = 0; ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); #ifdef PERL_OBJECT SvUPGRADE(&PL_sv_yes, SVt_PVNV); #else SvANY(&PL_sv_yes) = new_XPVNV(); #endif SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; SvFLAGS(&PL_sv_yes) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; SvPVX(&PL_sv_yes) = SAVEPVN(PL_Yes, 1); SvCUR(&PL_sv_yes) = 1; SvLEN(&PL_sv_yes) = 2; SvNVX(&PL_sv_yes) = 1; ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); /* create shared string table */ PL_strtab = newHV(); HvSHAREKEYS_off(PL_strtab); hv_ksplit(PL_strtab, 512); ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); PL_compiling = proto_perl->Icompiling; PL_compiling.cop_stashpv = SAVEPV(PL_compiling.cop_stashpv); PL_compiling.cop_file = SAVEPV(PL_compiling.cop_file); ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); if (!specialWARN(PL_compiling.cop_warnings)) PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings); PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); /* pseudo environmental stuff */ PL_origargc = proto_perl->Iorigargc; i = PL_origargc; New(0, PL_origargv, i+1, char*); PL_origargv[i] = '\0'; while (i-- > 0) { PL_origargv[i] = SAVEPV(proto_perl->Iorigargv[i]); } PL_envgv = gv_dup(proto_perl->Ienvgv); PL_incgv = gv_dup(proto_perl->Iincgv); PL_hintgv = gv_dup(proto_perl->Ihintgv); PL_origfilename = SAVEPV(proto_perl->Iorigfilename); PL_diehook = sv_dup_inc(proto_perl->Idiehook); PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook); /* switches */ PL_minus_c = proto_perl->Iminus_c; PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel); PL_localpatches = proto_perl->Ilocalpatches; PL_splitstr = proto_perl->Isplitstr; PL_preprocess = proto_perl->Ipreprocess; PL_minus_n = proto_perl->Iminus_n; PL_minus_p = proto_perl->Iminus_p; PL_minus_l = proto_perl->Iminus_l; PL_minus_a = proto_perl->Iminus_a; PL_minus_F = proto_perl->Iminus_F; PL_doswitches = proto_perl->Idoswitches; PL_dowarn = proto_perl->Idowarn; PL_doextract = proto_perl->Idoextract; PL_sawampersand = proto_perl->Isawampersand; PL_unsafe = proto_perl->Iunsafe; PL_inplace = SAVEPV(proto_perl->Iinplace); PL_e_script = sv_dup_inc(proto_perl->Ie_script); PL_perldb = proto_perl->Iperldb; PL_perl_destruct_level = proto_perl->Iperl_destruct_level; /* magical thingies */ /* XXX time(&PL_basetime) when asked for? */ PL_basetime = proto_perl->Ibasetime; PL_formfeed = sv_dup(proto_perl->Iformfeed); PL_maxsysfd = proto_perl->Imaxsysfd; PL_multiline = proto_perl->Imultiline; PL_statusvalue = proto_perl->Istatusvalue; #ifdef VMS PL_statusvalue_vms = proto_perl->Istatusvalue_vms; #endif /* shortcuts to various I/O objects */ PL_stdingv = gv_dup(proto_perl->Istdingv); PL_stderrgv = gv_dup(proto_perl->Istderrgv); PL_defgv = gv_dup(proto_perl->Idefgv); PL_argvgv = gv_dup(proto_perl->Iargvgv); PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv); PL_argvout_stack = av_dup(proto_perl->Iargvout_stack); /* shortcuts to regexp stuff */ PL_replgv = gv_dup(proto_perl->Ireplgv); /* shortcuts to misc objects */ PL_errgv = gv_dup(proto_perl->Ierrgv); /* shortcuts to debugging objects */ PL_DBgv = gv_dup(proto_perl->IDBgv); PL_DBline = gv_dup(proto_perl->IDBline); PL_DBsub = gv_dup(proto_perl->IDBsub); PL_DBsingle = sv_dup(proto_perl->IDBsingle); PL_DBtrace = sv_dup(proto_perl->IDBtrace); PL_DBsignal = sv_dup(proto_perl->IDBsignal); PL_lineary = av_dup(proto_perl->Ilineary); PL_dbargs = av_dup(proto_perl->Idbargs); /* symbol tables */ PL_defstash = hv_dup_inc(proto_perl->Tdefstash); PL_curstash = hv_dup(proto_perl->Tcurstash); PL_debstash = hv_dup(proto_perl->Idebstash); PL_globalstash = hv_dup(proto_perl->Iglobalstash); PL_curstname = sv_dup_inc(proto_perl->Icurstname); PL_beginav = av_dup_inc(proto_perl->Ibeginav); PL_endav = av_dup_inc(proto_perl->Iendav); PL_checkav = av_dup_inc(proto_perl->Icheckav); PL_initav = av_dup_inc(proto_perl->Iinitav); PL_sub_generation = proto_perl->Isub_generation; /* funky return mechanisms */ PL_forkprocess = proto_perl->Iforkprocess; /* subprocess state */ PL_fdpid = av_dup_inc(proto_perl->Ifdpid); /* internal state */ PL_tainting = proto_perl->Itainting; PL_maxo = proto_perl->Imaxo; if (proto_perl->Iop_mask) PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); else PL_op_mask = Nullch; /* current interpreter roots */ PL_main_cv = cv_dup_inc(proto_perl->Imain_cv); PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); PL_main_start = proto_perl->Imain_start; PL_eval_root = OpREFCNT_inc(proto_perl->Ieval_root); PL_eval_start = proto_perl->Ieval_start; /* runtime control stuff */ PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); PL_copline = proto_perl->Icopline; PL_filemode = proto_perl->Ifilemode; PL_lastfd = proto_perl->Ilastfd; PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ PL_Argv = NULL; PL_Cmd = Nullch; PL_gensym = proto_perl->Igensym; PL_preambled = proto_perl->Ipreambled; PL_preambleav = av_dup_inc(proto_perl->Ipreambleav); PL_laststatval = proto_perl->Ilaststatval; PL_laststype = proto_perl->Ilaststype; PL_mess_sv = Nullsv; PL_orslen = proto_perl->Iorslen; PL_ors = SAVEPVN(proto_perl->Iors, PL_orslen); PL_ofmt = SAVEPV(proto_perl->Iofmt); /* interpreter atexit processing */ PL_exitlistlen = proto_perl->Iexitlistlen; if (PL_exitlistlen) { New(0, PL_exitlist, PL_exitlistlen, PerlExitListEntry); Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); } else PL_exitlist = (PerlExitListEntry*)NULL; PL_modglobal = hv_dup_inc(proto_perl->Imodglobal); PL_profiledata = NULL; PL_rsfp = fp_dup(proto_perl->Irsfp, '<'); /* PL_rsfp_filters entries have fake IoDIRP() */ PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters); PL_compcv = cv_dup(proto_perl->Icompcv); PL_comppad = av_dup(proto_perl->Icomppad); PL_comppad_name = av_dup(proto_perl->Icomppad_name); PL_comppad_name_fill = proto_perl->Icomppad_name_fill; PL_comppad_name_floor = proto_perl->Icomppad_name_floor; PL_curpad = (SV**)ptr_table_fetch(PL_ptr_table, proto_perl->Tcurpad); #ifdef HAVE_INTERP_INTERN sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); #endif /* more statics moved here */ PL_generation = proto_perl->Igeneration; PL_DBcv = cv_dup(proto_perl->IDBcv); PL_in_clean_objs = proto_perl->Iin_clean_objs; PL_in_clean_all = proto_perl->Iin_clean_all; PL_uid = proto_perl->Iuid; PL_euid = proto_perl->Ieuid; PL_gid = proto_perl->Igid; PL_egid = proto_perl->Iegid; PL_nomemok = proto_perl->Inomemok; PL_an = proto_perl->Ian; PL_cop_seqmax = proto_perl->Icop_seqmax; PL_op_seqmax = proto_perl->Iop_seqmax; PL_evalseq = proto_perl->Ievalseq; PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ PL_origalen = proto_perl->Iorigalen; PL_pidstatus = newHV(); /* XXX flag for cloning? */ PL_osname = SAVEPV(proto_perl->Iosname); PL_sh_path = SAVEPV(proto_perl->Ish_path); PL_sighandlerp = proto_perl->Isighandlerp; PL_runops = proto_perl->Irunops; Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); #ifdef CSH PL_cshlen = proto_perl->Icshlen; PL_cshname = SAVEPVN(proto_perl->Icshname, PL_cshlen); #endif PL_lex_state = proto_perl->Ilex_state; PL_lex_defer = proto_perl->Ilex_defer; PL_lex_expect = proto_perl->Ilex_expect; PL_lex_formbrack = proto_perl->Ilex_formbrack; PL_lex_dojoin = proto_perl->Ilex_dojoin; PL_lex_starts = proto_perl->Ilex_starts; PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff); PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl); PL_lex_op = proto_perl->Ilex_op; PL_lex_inpat = proto_perl->Ilex_inpat; PL_lex_inwhat = proto_perl->Ilex_inwhat; PL_lex_brackets = proto_perl->Ilex_brackets; i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); PL_lex_casemods = proto_perl->Ilex_casemods; i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); PL_nexttoke = proto_perl->Inexttoke; PL_linestr = sv_dup_inc(proto_perl->Ilinestr); i = proto_perl->Ibufptr - SvPVX(proto_perl->Ilinestr); PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); i = proto_perl->Ioldbufptr - SvPVX(proto_perl->Ilinestr); PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); i = proto_perl->Ioldoldbufptr - SvPVX(proto_perl->Ilinestr); PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); i = proto_perl->Ilinestart - SvPVX(proto_perl->Ilinestr); PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); PL_pending_ident = proto_perl->Ipending_ident; PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ PL_expect = proto_perl->Iexpect; PL_multi_start = proto_perl->Imulti_start; PL_multi_end = proto_perl->Imulti_end; PL_multi_open = proto_perl->Imulti_open; PL_multi_close = proto_perl->Imulti_close; PL_error_count = proto_perl->Ierror_count; PL_subline = proto_perl->Isubline; PL_subname = sv_dup_inc(proto_perl->Isubname); PL_min_intro_pending = proto_perl->Imin_intro_pending; PL_max_intro_pending = proto_perl->Imax_intro_pending; PL_padix = proto_perl->Ipadix; PL_padix_floor = proto_perl->Ipadix_floor; PL_pad_reset_pending = proto_perl->Ipad_reset_pending; i = proto_perl->Ilast_uni - SvPVX(proto_perl->Ilinestr); PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); i = proto_perl->Ilast_lop - SvPVX(proto_perl->Ilinestr); PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); PL_last_lop_op = proto_perl->Ilast_lop_op; PL_in_my = proto_perl->Iin_my; PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash); #ifdef FCRYPT PL_cryptseen = proto_perl->Icryptseen; #endif PL_hints = proto_perl->Ihints; PL_amagic_generation = proto_perl->Iamagic_generation; #ifdef USE_LOCALE_COLLATE PL_collation_ix = proto_perl->Icollation_ix; PL_collation_name = SAVEPV(proto_perl->Icollation_name); PL_collation_standard = proto_perl->Icollation_standard; PL_collxfrm_base = proto_perl->Icollxfrm_base; PL_collxfrm_mult = proto_perl->Icollxfrm_mult; #endif /* USE_LOCALE_COLLATE */ #ifdef USE_LOCALE_NUMERIC PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); PL_numeric_standard = proto_perl->Inumeric_standard; PL_numeric_local = proto_perl->Inumeric_local; PL_numeric_radix = proto_perl->Inumeric_radix; #endif /* !USE_LOCALE_NUMERIC */ /* utf8 character classes */ PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum); PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc); PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii); PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha); PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space); PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl); PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph); PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit); PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper); PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower); PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print); PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct); PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit); PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark); PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper); PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle); PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower); /* swatch cache */ PL_last_swash_hv = Nullhv; /* reinits on demand */ PL_last_swash_klen = 0; PL_last_swash_key[0]= '\0'; PL_last_swash_tmps = (U8*)NULL; PL_last_swash_slen = 0; /* perly.c globals */ PL_yydebug = proto_perl->Iyydebug; PL_yynerrs = proto_perl->Iyynerrs; PL_yyerrflag = proto_perl->Iyyerrflag; PL_yychar = proto_perl->Iyychar; PL_yyval = proto_perl->Iyyval; PL_yylval = proto_perl->Iyylval; PL_glob_index = proto_perl->Iglob_index; PL_srand_called = proto_perl->Isrand_called; PL_uudmap['M'] = 0; /* reinits on demand */ PL_bitcount = Nullch; /* reinits on demand */ if (proto_perl->Ipsig_ptr) { int sig_num[] = { SIG_NUM }; Newz(0, PL_psig_ptr, sizeof(sig_num)/sizeof(*sig_num), SV*); Newz(0, PL_psig_name, sizeof(sig_num)/sizeof(*sig_num), SV*); for (i = 1; PL_sig_name[i]; i++) { PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i]); PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i]); } } else { PL_psig_ptr = (SV**)NULL; PL_psig_name = (SV**)NULL; } /* thrdvar.h stuff */ if (flags & 1) { /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ PL_tmps_ix = proto_perl->Ttmps_ix; PL_tmps_max = proto_perl->Ttmps_max; PL_tmps_floor = proto_perl->Ttmps_floor; Newz(50, PL_tmps_stack, PL_tmps_max, SV*); i = 0; while (i <= PL_tmps_ix) { PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i]); ++i; } /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; Newz(54, PL_markstack, i, I32); PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max - proto_perl->Tmarkstack); PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr - proto_perl->Tmarkstack); Copy(proto_perl->Tmarkstack, PL_markstack, PL_markstack_ptr - PL_markstack + 1, I32); /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] * NOTE: unlike the others! */ PL_scopestack_ix = proto_perl->Tscopestack_ix; PL_scopestack_max = proto_perl->Tscopestack_max; Newz(54, PL_scopestack, PL_scopestack_max, I32); Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); /* next push_return() sets PL_retstack[PL_retstack_ix] * NOTE: unlike the others! */ PL_retstack_ix = proto_perl->Tretstack_ix; PL_retstack_max = proto_perl->Tretstack_max; Newz(54, PL_retstack, PL_retstack_max, OP*); Copy(proto_perl->Tretstack, PL_retstack, PL_retstack_ix, I32); /* NOTE: si_dup() looks at PL_markstack */ PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo); /* PL_curstack = PL_curstackinfo->si_stack; */ PL_curstack = av_dup(proto_perl->Tcurstack); PL_mainstack = av_dup(proto_perl->Tmainstack); /* next PUSHs() etc. set *(PL_stack_sp+1) */ PL_stack_base = AvARRAY(PL_curstack); PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp - proto_perl->Tstack_base); PL_stack_max = PL_stack_base + AvMAX(PL_curstack); /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] * NOTE: unlike the others! */ PL_savestack_ix = proto_perl->Tsavestack_ix; PL_savestack_max = proto_perl->Tsavestack_max; /*Newz(54, PL_savestack, PL_savestack_max, ANY);*/ PL_savestack = ss_dup(proto_perl); } else { init_stacks(); } PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ PL_top_env = &PL_start_env; PL_op = proto_perl->Top; PL_Sv = Nullsv; PL_Xpv = (XPV*)NULL; PL_na = proto_perl->Tna; PL_statbuf = proto_perl->Tstatbuf; PL_statcache = proto_perl->Tstatcache; PL_statgv = gv_dup(proto_perl->Tstatgv); PL_statname = sv_dup_inc(proto_perl->Tstatname); #ifdef HAS_TIMES PL_timesbuf = proto_perl->Ttimesbuf; #endif PL_tainted = proto_perl->Ttainted; PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ PL_nrs = sv_dup_inc(proto_perl->Tnrs); PL_rs = sv_dup_inc(proto_perl->Trs); PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv); PL_ofslen = proto_perl->Tofslen; PL_ofs = SAVEPVN(proto_perl->Tofs, PL_ofslen); PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv); PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget); PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget); PL_formtarget = sv_dup(proto_perl->Tformtarget); PL_restartop = proto_perl->Trestartop; PL_in_eval = proto_perl->Tin_eval; PL_delaymagic = proto_perl->Tdelaymagic; PL_dirty = proto_perl->Tdirty; PL_localizing = proto_perl->Tlocalizing; PL_protect = proto_perl->Tprotect; PL_errors = sv_dup_inc(proto_perl->Terrors); PL_av_fetch_sv = Nullsv; PL_hv_fetch_sv = Nullsv; Zero(&PL_hv_fetch_ent_mh, 1, HE); /* XXX */ PL_modcount = proto_perl->Tmodcount; PL_lastgotoprobe = Nullop; PL_dumpindent = proto_perl->Tdumpindent; PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); PL_sortstash = hv_dup(proto_perl->Tsortstash); PL_firstgv = gv_dup(proto_perl->Tfirstgv); PL_secondgv = gv_dup(proto_perl->Tsecondgv); PL_sortcxix = proto_perl->Tsortcxix; PL_efloatbuf = Nullch; /* reinits on demand */ PL_efloatsize = 0; /* reinits on demand */ /* regex stuff */ PL_screamfirst = NULL; PL_screamnext = NULL; PL_maxscream = -1; /* reinits on demand */ PL_lastscream = Nullsv; PL_watchaddr = NULL; PL_watchok = Nullch; PL_regdummy = proto_perl->Tregdummy; PL_regcomp_parse = Nullch; PL_regxend = Nullch; PL_regcode = (regnode*)NULL; PL_regnaughty = 0; PL_regsawback = 0; PL_regprecomp = Nullch; PL_regnpar = 0; PL_regsize = 0; PL_regflags = 0; PL_regseen = 0; PL_seen_zerolen = 0; PL_seen_evals = 0; PL_regcomp_rx = (regexp*)NULL; PL_extralen = 0; PL_colorset = 0; /* reinits PL_colors[] */ /*PL_colors[6] = {0,0,0,0,0,0};*/ PL_reg_whilem_seen = 0; PL_reginput = Nullch; PL_regbol = Nullch; PL_regeol = Nullch; PL_regstartp = (I32*)NULL; PL_regendp = (I32*)NULL; PL_reglastparen = (U32*)NULL; PL_regtill = Nullch; PL_regprev = '\n'; PL_reg_start_tmp = (char**)NULL; PL_reg_start_tmpl = 0; PL_regdata = (struct reg_data*)NULL; PL_bostr = Nullch; PL_reg_flags = 0; PL_reg_eval_set = 0; PL_regnarrate = 0; PL_regprogram = (regnode*)NULL; PL_regindent = 0; PL_regcc = (CURCUR*)NULL; PL_reg_call_cc = (struct re_cc_state*)NULL; PL_reg_re = (regexp*)NULL; PL_reg_ganch = Nullch; PL_reg_sv = Nullsv; PL_reg_magic = (MAGIC*)NULL; PL_reg_oldpos = 0; PL_reg_oldcurpm = (PMOP*)NULL; PL_reg_curpm = (PMOP*)NULL; PL_reg_oldsaved = Nullch; PL_reg_oldsavedlen = 0; PL_reg_maxiter = 0; PL_reg_leftiter = 0; PL_reg_poscache = Nullch; PL_reg_poscache_size= 0; /* RE engine - function pointers */ PL_regcompp = proto_perl->Tregcompp; PL_regexecp = proto_perl->Tregexecp; PL_regint_start = proto_perl->Tregint_start; PL_regint_string = proto_perl->Tregint_string; PL_regfree = proto_perl->Tregfree; PL_reginterp_cnt = 0; PL_reg_starttry = 0; #ifdef PERL_OBJECT return (PerlInterpreter*)pPerl; #else return my_perl; #endif } #else /* !USE_ITHREADS */ #ifdef PERL_OBJECT #include "XSUB.h" #endif #endif /* USE_ITHREADS */ static void do_report_used(pTHXo_ SV *sv) { if (SvTYPE(sv) != SVTYPEMASK) { PerlIO_printf(Perl_debug_log, "****\n"); sv_dump(sv); } } static void do_clean_objs(pTHXo_ SV *sv) { SV* rv; if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));) SvROK_off(sv); SvRV(sv) = 0; SvREFCNT_dec(rv); } /* XXX Might want to check arrays, etc. */ } #ifndef DISABLE_DESTRUCTOR_KLUDGE static void do_clean_named_objs(pTHXo_ SV *sv) { if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) { if ( SvOBJECT(GvSV(sv)) || GvAV(sv) && SvOBJECT(GvAV(sv)) || GvHV(sv) && SvOBJECT(GvHV(sv)) || GvIO(sv) && SvOBJECT(GvIO(sv)) || GvCV(sv) && SvOBJECT(GvCV(sv)) ) { DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv));) SvREFCNT_dec(sv); } } } #endif static void do_clean_all(pTHXo_ SV *sv) { DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) );) SvFLAGS(sv) |= SVf_BREAK; SvREFCNT_dec(sv); }