#ifndef USE_THREADS #define MUTEX_LOCK(m) #define MUTEX_UNLOCK(m) #define MUTEX_INIT(m) #define MUTEX_DESTROY(m) #define COND_INIT(c) #define COND_SIGNAL(c) #define COND_BROADCAST(c) #define COND_WAIT(c, m) #define COND_DESTROY(c) #define THR /* Rats: if dTHR is just blank then the subsequent ";" throws an error */ #define dTHR extern int errno #else #ifdef FAKE_THREADS typedef struct thread *perl_thread; /* With fake threads, thr is global(ish) so we don't need dTHR */ #define dTHR extern int errno /* * Note that SCHEDULE() is only callable from pp code (which * must be expecting to be restarted). We'll have to do * something a bit different for XS code. */ #define SCHEDULE() return schedule(), op #define MUTEX_LOCK(m) #define MUTEX_UNLOCK(m) #define MUTEX_INIT(m) #define MUTEX_DESTROY(m) #define COND_INIT(c) perl_cond_init(c) #define COND_SIGNAL(c) perl_cond_signal(c) #define COND_BROADCAST(c) perl_cond_broadcast(c) #define COND_WAIT(c, m) STMT_START { \ perl_cond_wait(c); \ SCHEDULE(); \ } STMT_END #define COND_DESTROY(c) #else /* POSIXish threads */ typedef pthread_t perl_thread; #ifdef OLD_PTHREADS_API #define pthread_mutexattr_init(a) pthread_mutexattr_create(a) #define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t) #define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d)) #else #define pthread_mutexattr_default NULL #endif /* OLD_PTHREADS_API */ #define MUTEX_INIT(m) \ if (pthread_mutex_init((m), pthread_mutexattr_default)) \ croak("panic: MUTEX_INIT"); \ else 1 #define MUTEX_LOCK(m) \ if (pthread_mutex_lock((m))) croak("panic: MUTEX_LOCK"); else 1 #define MUTEX_UNLOCK(m) \ if (pthread_mutex_unlock((m))) croak("panic: MUTEX_UNLOCK"); else 1 #define MUTEX_DESTROY(m) \ if (pthread_mutex_destroy((m))) croak("panic: MUTEX_DESTROY"); else 1 #define COND_INIT(c) \ if (pthread_cond_init((c), NULL)) croak("panic: COND_INIT"); else 1 #define COND_SIGNAL(c) \ if (pthread_cond_signal((c))) croak("panic: COND_SIGNAL"); else 1 #define COND_BROADCAST(c) \ if (pthread_cond_broadcast((c))) croak("panic: COND_BROADCAST"); else 1 #define COND_WAIT(c, m) \ if (pthread_cond_wait((c), (m))) croak("panic: COND_WAIT"); else 1 #define COND_DESTROY(c) \ if (pthread_cond_destroy((c))) croak("panic: COND_DESTROY"); else 1 /* XXX Add "old" (?) POSIX draft interface too */ #ifdef OLD_PTHREADS_API struct thread *getTHR _((void)); #define THR getTHR() #else #define THR ((struct thread *) pthread_getspecific(thr_key)) #endif /* OLD_PTHREADS_API */ #define dTHR struct thread *thr = THR #endif /* FAKE_THREADS */ struct thread { perl_thread Tself; /* The fields that used to be global */ SV ** Tstack_base; SV ** Tstack_sp; SV ** Tstack_max; #ifdef OP_IN_REGISTER OP * Topsave; #else OP * Top; #endif I32 * Tscopestack; I32 Tscopestack_ix; I32 Tscopestack_max; ANY * Tsavestack; I32 Tsavestack_ix; I32 Tsavestack_max; OP ** Tretstack; I32 Tretstack_ix; I32 Tretstack_max; I32 * Tmarkstack; I32 * Tmarkstack_ptr; I32 * Tmarkstack_max; SV ** Tcurpad; SV * TSv; XPV * TXpv; char Tbuf[2048]; /* should be a global locked by a mutex */ char Ttokenbuf[256]; /* should be a global locked by a mutex */ struct stat Tstatbuf; struct tms Ttimesbuf; /* XXX What about regexp stuff? */ /* Now the fields that used to be "per interpreter" (even when global) */ /* XXX What about magic variables such as $/, $? and so on? */ HV * Tdefstash; HV * Tcurstash; AV * Tpad; AV * Tpadname; SV ** Ttmps_stack; I32 Ttmps_ix; I32 Ttmps_floor; I32 Ttmps_max; int Tin_eval; OP * Trestartop; int Tdelaymagic; bool Tdirty; U8 Tlocalizing; CONTEXT * Tcxstack; I32 Tcxstack_ix; I32 Tcxstack_max; AV * Tstack; AV * Tmainstack; JMPENV * Ttop_env; I32 Trunlevel; /* XXX Sort stuff, firstgv, secongv and so on? */ perl_mutex *Tthreadstart_mutexp; HV * Tcvcache; U32 Tthrflags; #ifdef FAKE_THREADS perl_thread next, prev; /* Linked list of all threads */ perl_thread next_run, prev_run; /* Linked list of runnable threads */ perl_cond wait_queue; /* Wait queue that we are waiting on */ IV private; /* Holds data across time slices */ #endif /* FAKE_THREADS */ }; typedef struct thread *Thread; /* Values and macros for thrflags */ #define THR_STATE_MASK 3 #define THR_NORMAL 0 #define THR_DETACHED 1 #define THR_JOINED 2 #define THR_DEAD 3 #define ThrSTATE(t) (t->Tthrflags & THR_STATE_MASK) #define ThrSETSTATE(t, s) STMT_START { \ (t)->Tthrflags &= ~THR_STATE_MASK; \ (t)->Tthrflags |= (s); \ DEBUG_L(fprintf(stderr, "thread 0x%lx set to state %d\n", \ (unsigned long)(t), (s))); \ } STMT_END typedef struct condpair { perl_mutex mutex; perl_cond owner_cond; perl_cond cond; Thread owner; } condpair_t; #define MgMUTEXP(mg) (&((condpair_t *)(mg->mg_ptr))->mutex) #define MgOWNERCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->owner_cond) #define MgCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->cond) #define MgOWNER(mg) ((condpair_t *)(mg->mg_ptr))->owner #undef stack_base #undef stack_sp #undef stack_max #undef stack #undef mainstack #undef markstack #undef markstack_ptr #undef markstack_max #undef scopestack #undef scopestack_ix #undef scopestack_max #undef savestack #undef savestack_ix #undef savestack_max #undef retstack #undef retstack_ix #undef retstack_max #undef cxstack #undef cxstack_ix #undef cxstack_max #undef tmps_stack #undef tmps_floor #undef tmps_ix #undef tmps_max #undef curpad #undef Sv #undef Xpv #undef top_env #undef runlevel #undef in_eval #define self (thr->Tself) #define stack_base (thr->Tstack_base) #define stack_sp (thr->Tstack_sp) #define stack_max (thr->Tstack_max) #ifdef OP_IN_REGISTER #define opsave (thr->Topsave) #else #undef op #define op (thr->Top) #endif #define stack (thr->Tstack) #define mainstack (thr->Tmainstack) #define markstack (thr->Tmarkstack) #define markstack_ptr (thr->Tmarkstack_ptr) #define markstack_max (thr->Tmarkstack_max) #define scopestack (thr->Tscopestack) #define scopestack_ix (thr->Tscopestack_ix) #define scopestack_max (thr->Tscopestack_max) #define savestack (thr->Tsavestack) #define savestack_ix (thr->Tsavestack_ix) #define savestack_max (thr->Tsavestack_max) #define retstack (thr->Tretstack) #define retstack_ix (thr->Tretstack_ix) #define retstack_max (thr->Tretstack_max) #define cxstack (thr->Tcxstack) #define cxstack_ix (thr->Tcxstack_ix) #define cxstack_max (thr->Tcxstack_max) #define curpad (thr->Tcurpad) #define Sv (thr->TSv) #define Xpv (thr->TXpv) #define defstash (thr->Tdefstash) #define curstash (thr->Tcurstash) #define pad (thr->Tpad) #define padname (thr->Tpadname) #define tmps_stack (thr->Ttmps_stack) #define tmps_ix (thr->Ttmps_ix) #define tmps_floor (thr->Ttmps_floor) #define tmps_max (thr->Ttmps_max) #define in_eval (thr->Tin_eval) #define restartop (thr->Trestartop) #define delaymagic (thr->Tdelaymagic) #define dirty (thr->Tdirty) #define localizing (thr->Tlocalizing) #define top_env (thr->Ttop_env) #define runlevel (thr->Trunlevel) #define threadstart_mutexp (thr->Tthreadstart_mutexp) #define cvcache (thr->Tcvcache) #define thrflags (thr->Tthrflags) #endif /* USE_THREADS */