1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
#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
#include <pthread.h>
#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
struct thread {
pthread_t 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? */
pthread_mutex_t * Tthreadstart_mutexp;
HV * Tcvcache;
U32 Tthrflags;
};
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 {
pthread_mutex_t mutex;
pthread_cond_t owner_cond;
pthread_cond_t 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 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 */
|
