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1 | #ifdef USE_THREADS |
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2 | |
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3 | #ifdef WIN32 |
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4 | # include <win32thread.h> |
| 5 | #else |
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6 | |
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7 | /* POSIXish threads */ |
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8 | typedef pthread_t perl_os_thread; |
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9 | #ifdef OLD_PTHREADS_API |
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10 | # define pthread_mutexattr_init(a) pthread_mutexattr_create(a) |
| 11 | # define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t) |
| 12 | # define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d)) |
| 13 | # define YIELD pthread_yield() |
| 14 | # define DETACH(t) \ |
| 15 | STMT_START { \ |
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16 | if (pthread_detach(&(t)->self)) { \ |
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17 | MUTEX_UNLOCK(&(t)->mutex); \ |
| 18 | croak("panic: DETACH"); \ |
| 19 | } \ |
| 20 | } STMT_END |
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21 | #else |
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22 | # define pthread_mutexattr_default NULL |
| 23 | # define pthread_condattr_default NULL |
| 24 | # define pthread_attr_default NULL |
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25 | #endif /* OLD_PTHREADS_API */ |
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26 | #endif |
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27 | |
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28 | #ifndef YIELD |
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29 | # ifdef HAS_PTHREAD_YIELD |
| 30 | # define YIELD pthread_yield() |
| 31 | # else |
| 32 | # define YIELD sched_yield() |
| 33 | # endif |
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34 | #endif |
| 35 | |
| 36 | #ifndef MUTEX_INIT |
| 37 | #define MUTEX_INIT(m) \ |
| 38 | STMT_START { \ |
| 39 | if (pthread_mutex_init((m), pthread_mutexattr_default)) \ |
| 40 | croak("panic: MUTEX_INIT"); \ |
| 41 | } STMT_END |
| 42 | #define MUTEX_LOCK(m) \ |
| 43 | STMT_START { \ |
| 44 | if (pthread_mutex_lock((m))) \ |
| 45 | croak("panic: MUTEX_LOCK"); \ |
| 46 | } STMT_END |
| 47 | #define MUTEX_UNLOCK(m) \ |
| 48 | STMT_START { \ |
| 49 | if (pthread_mutex_unlock((m))) \ |
| 50 | croak("panic: MUTEX_UNLOCK"); \ |
| 51 | } STMT_END |
| 52 | #define MUTEX_DESTROY(m) \ |
| 53 | STMT_START { \ |
| 54 | if (pthread_mutex_destroy((m))) \ |
| 55 | croak("panic: MUTEX_DESTROY"); \ |
| 56 | } STMT_END |
| 57 | #endif /* MUTEX_INIT */ |
| 58 | |
| 59 | #ifndef COND_INIT |
| 60 | #define COND_INIT(c) \ |
| 61 | STMT_START { \ |
| 62 | if (pthread_cond_init((c), pthread_condattr_default)) \ |
| 63 | croak("panic: COND_INIT"); \ |
| 64 | } STMT_END |
| 65 | #define COND_SIGNAL(c) \ |
| 66 | STMT_START { \ |
| 67 | if (pthread_cond_signal((c))) \ |
| 68 | croak("panic: COND_SIGNAL"); \ |
| 69 | } STMT_END |
| 70 | #define COND_BROADCAST(c) \ |
| 71 | STMT_START { \ |
| 72 | if (pthread_cond_broadcast((c))) \ |
| 73 | croak("panic: COND_BROADCAST"); \ |
| 74 | } STMT_END |
| 75 | #define COND_WAIT(c, m) \ |
| 76 | STMT_START { \ |
| 77 | if (pthread_cond_wait((c), (m))) \ |
| 78 | croak("panic: COND_WAIT"); \ |
| 79 | } STMT_END |
| 80 | #define COND_DESTROY(c) \ |
| 81 | STMT_START { \ |
| 82 | if (pthread_cond_destroy((c))) \ |
| 83 | croak("panic: COND_DESTROY"); \ |
| 84 | } STMT_END |
| 85 | #endif /* COND_INIT */ |
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86 | |
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87 | /* DETACH(t) must only be called while holding t->mutex */ |
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88 | #ifndef DETACH |
| 89 | #define DETACH(t) \ |
| 90 | STMT_START { \ |
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91 | if (pthread_detach((t)->self)) { \ |
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92 | MUTEX_UNLOCK(&(t)->mutex); \ |
| 93 | croak("panic: DETACH"); \ |
| 94 | } \ |
| 95 | } STMT_END |
| 96 | #endif /* DETACH */ |
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97 | |
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98 | #ifndef JOIN |
| 99 | #define JOIN(t, avp) \ |
| 100 | STMT_START { \ |
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101 | if (pthread_join((t)->self, (void**)(avp))) \ |
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102 | croak("panic: pthread_join"); \ |
| 103 | } STMT_END |
| 104 | #endif /* JOIN */ |
| 105 | |
| 106 | #ifndef SET_THR |
| 107 | #define SET_THR(t) \ |
| 108 | STMT_START { \ |
| 109 | if (pthread_setspecific(thr_key, (void *) (t))) \ |
| 110 | croak("panic: pthread_setspecific"); \ |
| 111 | } STMT_END |
| 112 | #endif /* SET_THR */ |
| 113 | |
| 114 | #ifndef THR |
| 115 | # ifdef OLD_PTHREADS_API |
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116 | struct perl_thread *getTHR _((void)); |
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117 | # define THR getTHR() |
| 118 | # else |
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119 | # define THR ((struct perl_thread *) pthread_getspecific(thr_key)) |
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120 | # endif /* OLD_PTHREADS_API */ |
| 121 | #endif /* THR */ |
| 122 | |
| 123 | #ifndef dTHR |
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124 | # define dTHR struct perl_thread *thr = THR |
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125 | #endif /* dTHR */ |
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126 | |
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127 | #ifndef INIT_THREADS |
| 128 | # ifdef NEED_PTHREAD_INIT |
| 129 | # define INIT_THREADS pthread_init() |
| 130 | # else |
| 131 | # define INIT_THREADS NOOP |
| 132 | # endif |
| 133 | #endif |
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134 | |
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135 | |
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136 | #ifndef THREAD_RET_TYPE |
| 137 | # define THREAD_RET_TYPE void * |
| 138 | # define THREAD_RET_CAST(p) ((void *)(p)) |
| 139 | #endif /* THREAD_RET */ |
| 140 | |
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141 | |
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142 | /* Values and macros for thr->flags */ |
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143 | #define THRf_STATE_MASK 7 |
| 144 | #define THRf_R_JOINABLE 0 |
| 145 | #define THRf_R_JOINED 1 |
| 146 | #define THRf_R_DETACHED 2 |
| 147 | #define THRf_ZOMBIE 3 |
| 148 | #define THRf_DEAD 4 |
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149 | |
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150 | #define THRf_DID_DIE 8 |
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151 | |
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152 | /* ThrSTATE(t) and ThrSETSTATE(t) must only be called while holding t->mutex */ |
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153 | #define ThrSTATE(t) ((t)->flags & THRf_STATE_MASK) |
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154 | #define ThrSETSTATE(t, s) STMT_START { \ |
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155 | (t)->flags &= ~THRf_STATE_MASK; \ |
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156 | (t)->flags |= (s); \ |
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157 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), \ |
| 158 | "thread %p set to state %d\n", (t), (s))); \ |
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159 | } STMT_END |
| 160 | |
| 161 | typedef struct condpair { |
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162 | perl_mutex mutex; /* Protects all other fields */ |
| 163 | perl_cond owner_cond; /* For when owner changes at all */ |
| 164 | perl_cond cond; /* For cond_signal and cond_broadcast */ |
| 165 | Thread owner; /* Currently owning thread */ |
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166 | } condpair_t; |
| 167 | |
| 168 | #define MgMUTEXP(mg) (&((condpair_t *)(mg->mg_ptr))->mutex) |
| 169 | #define MgOWNERCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->owner_cond) |
| 170 | #define MgCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->cond) |
| 171 | #define MgOWNER(mg) ((condpair_t *)(mg->mg_ptr))->owner |
| 172 | |
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173 | #undef stack_base |
| 174 | #undef stack_sp |
| 175 | #undef stack_max |
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176 | #undef curstack |
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177 | #undef mainstack |
| 178 | #undef markstack |
| 179 | #undef markstack_ptr |
| 180 | #undef markstack_max |
| 181 | #undef scopestack |
| 182 | #undef scopestack_ix |
| 183 | #undef scopestack_max |
| 184 | #undef savestack |
| 185 | #undef savestack_ix |
| 186 | #undef savestack_max |
| 187 | #undef retstack |
| 188 | #undef retstack_ix |
| 189 | #undef retstack_max |
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190 | #undef curcop |
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191 | #undef cxstack |
| 192 | #undef cxstack_ix |
| 193 | #undef cxstack_max |
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194 | #undef defstash |
| 195 | #undef curstash |
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196 | #undef tmps_stack |
| 197 | #undef tmps_floor |
| 198 | #undef tmps_ix |
| 199 | #undef tmps_max |
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200 | #undef curpad |
| 201 | #undef Sv |
| 202 | #undef Xpv |
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203 | #undef statbuf |
| 204 | #undef timesbuf |
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205 | #undef tainted |
| 206 | #undef curpm |
| 207 | #undef nrs |
| 208 | #undef rs |
| 209 | #undef last_in_gv |
| 210 | #undef ofs |
| 211 | #undef ofslen |
| 212 | #undef defoutgv |
| 213 | #undef chopset |
| 214 | #undef formtarget |
| 215 | #undef bodytarget |
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216 | #undef start_env |
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217 | #undef toptarget |
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218 | #undef top_env |
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219 | #undef in_eval |
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220 | #undef restartop |
| 221 | #undef delaymagic |
| 222 | #undef dirty |
| 223 | #undef localizing |
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224 | |
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225 | #define stack_base (thr->Tstack_base) |
| 226 | #define stack_sp (thr->Tstack_sp) |
| 227 | #define stack_max (thr->Tstack_max) |
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228 | #ifdef OP_IN_REGISTER |
| 229 | #define opsave (thr->Topsave) |
| 230 | #else |
| 231 | #undef op |
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232 | #define op (thr->Top) |
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233 | #endif |
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234 | #define curcop (thr->Tcurcop) |
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235 | #define stack (thr->Tstack) |
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236 | #define curstack (thr->Tcurstack) |
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237 | #define mainstack (thr->Tmainstack) |
| 238 | #define markstack (thr->Tmarkstack) |
| 239 | #define markstack_ptr (thr->Tmarkstack_ptr) |
| 240 | #define markstack_max (thr->Tmarkstack_max) |
| 241 | #define scopestack (thr->Tscopestack) |
| 242 | #define scopestack_ix (thr->Tscopestack_ix) |
| 243 | #define scopestack_max (thr->Tscopestack_max) |
| 244 | |
| 245 | #define savestack (thr->Tsavestack) |
| 246 | #define savestack_ix (thr->Tsavestack_ix) |
| 247 | #define savestack_max (thr->Tsavestack_max) |
| 248 | |
| 249 | #define retstack (thr->Tretstack) |
| 250 | #define retstack_ix (thr->Tretstack_ix) |
| 251 | #define retstack_max (thr->Tretstack_max) |
| 252 | |
| 253 | #define cxstack (thr->Tcxstack) |
| 254 | #define cxstack_ix (thr->Tcxstack_ix) |
| 255 | #define cxstack_max (thr->Tcxstack_max) |
| 256 | |
| 257 | #define curpad (thr->Tcurpad) |
| 258 | #define Sv (thr->TSv) |
| 259 | #define Xpv (thr->TXpv) |
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260 | #define statbuf (thr->Tstatbuf) |
| 261 | #define timesbuf (thr->Ttimesbuf) |
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262 | #define tainted (thr->Ttainted) |
| 263 | #define tainted (thr->Ttainted) |
| 264 | #define curpm (thr->Tcurpm) |
| 265 | #define nrs (thr->Tnrs) |
| 266 | #define rs (thr->Trs) |
| 267 | #define last_in_gv (thr->Tlast_in_gv) |
| 268 | #define ofs (thr->Tofs) |
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269 | #define ofslen (thr->Tofslen) |
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270 | #define defoutgv (thr->Tdefoutgv) |
| 271 | #define chopset (thr->Tchopset) |
| 272 | #define formtarget (thr->Tformtarget) |
| 273 | #define bodytarget (thr->Tbodytarget) |
| 274 | #define toptarget (thr->Ttoptarget) |
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275 | #define defstash (thr->Tdefstash) |
| 276 | #define curstash (thr->Tcurstash) |
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277 | |
| 278 | #define tmps_stack (thr->Ttmps_stack) |
| 279 | #define tmps_ix (thr->Ttmps_ix) |
| 280 | #define tmps_floor (thr->Ttmps_floor) |
| 281 | #define tmps_max (thr->Ttmps_max) |
| 282 | |
| 283 | #define in_eval (thr->Tin_eval) |
| 284 | #define restartop (thr->Trestartop) |
| 285 | #define delaymagic (thr->Tdelaymagic) |
| 286 | #define dirty (thr->Tdirty) |
| 287 | #define localizing (thr->Tlocalizing) |
| 288 | |
| 289 | #define top_env (thr->Ttop_env) |
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290 | #define start_env (thr->Tstart_env) |
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291 | |
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292 | #else |
| 293 | /* USE_THREADS is not defined */ |
| 294 | #define MUTEX_LOCK(m) |
| 295 | #define MUTEX_UNLOCK(m) |
| 296 | #define MUTEX_INIT(m) |
| 297 | #define MUTEX_DESTROY(m) |
| 298 | #define COND_INIT(c) |
| 299 | #define COND_SIGNAL(c) |
| 300 | #define COND_BROADCAST(c) |
| 301 | #define COND_WAIT(c, m) |
| 302 | #define COND_DESTROY(c) |
| 303 | |
| 304 | #define THR |
| 305 | /* Rats: if dTHR is just blank then the subsequent ";" throws an error */ |
| 306 | #define dTHR extern int errno |
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307 | #endif /* USE_THREADS */ |
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