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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 |
| 11343788 |
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)) { \ |
| ea0efc06 |
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 | struct perl_thread { |
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142 | /* The fields that used to be global */ |
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143 | /* Important ones in the first cache line (if alignment is done right) */ |
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144 | SV ** Tstack_sp; |
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145 | #ifdef OP_IN_REGISTER |
| 146 | OP * Topsave; |
| 147 | #else |
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148 | OP * Top; |
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149 | #endif |
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150 | SV ** Tcurpad; |
| 151 | SV ** Tstack_base; |
| 152 | |
| 153 | SV ** Tstack_max; |
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154 | |
| 155 | I32 * Tscopestack; |
| 156 | I32 Tscopestack_ix; |
| 157 | I32 Tscopestack_max; |
| 158 | |
| 159 | ANY * Tsavestack; |
| 160 | I32 Tsavestack_ix; |
| 161 | I32 Tsavestack_max; |
| 162 | |
| 163 | OP ** Tretstack; |
| 164 | I32 Tretstack_ix; |
| 165 | I32 Tretstack_max; |
| 166 | |
| 167 | I32 * Tmarkstack; |
| 168 | I32 * Tmarkstack_ptr; |
| 169 | I32 * Tmarkstack_max; |
| 170 | |
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171 | SV * TSv; |
| 172 | XPV * TXpv; |
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173 | struct stat Tstatbuf; |
| 174 | struct tms Ttimesbuf; |
| 175 | |
| 176 | /* XXX What about regexp stuff? */ |
| 177 | |
| 178 | /* Now the fields that used to be "per interpreter" (even when global) */ |
| 179 | |
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180 | /* Fields used by magic variables such as $@, $/ and so on */ |
| 181 | bool Ttainted; |
| 182 | PMOP * Tcurpm; |
| 183 | SV * Tnrs; |
| 184 | SV * Trs; |
| 185 | GV * Tlast_in_gv; |
| 186 | char * Tofs; |
| 187 | STRLEN Tofslen; |
| 188 | GV * Tdefoutgv; |
| 189 | char * Tchopset; |
| 190 | SV * Tformtarget; |
| 191 | SV * Tbodytarget; |
| 192 | SV * Ttoptarget; |
| 193 | |
| 194 | /* Stashes */ |
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195 | HV * Tdefstash; |
| 196 | HV * Tcurstash; |
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197 | |
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198 | /* Stacks */ |
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199 | SV ** Ttmps_stack; |
| 200 | I32 Ttmps_ix; |
| 201 | I32 Ttmps_floor; |
| 202 | I32 Ttmps_max; |
| 203 | |
| 204 | int Tin_eval; |
| 205 | OP * Trestartop; |
| 206 | int Tdelaymagic; |
| 207 | bool Tdirty; |
| 208 | U8 Tlocalizing; |
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209 | COP * Tcurcop; |
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210 | |
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211 | PERL_CONTEXT * Tcxstack; |
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212 | I32 Tcxstack_ix; |
| 213 | I32 Tcxstack_max; |
| 214 | |
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215 | AV * Tcurstack; |
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216 | AV * Tmainstack; |
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217 | JMPENV * Ttop_env; |
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218 | |
| 219 | /* XXX Sort stuff, firstgv, secongv and so on? */ |
| 220 | |
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221 | SV * oursv; |
| 222 | HV * cvcache; |
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223 | perl_os_thread self; /* Underlying thread object */ |
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224 | U32 flags; |
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225 | AV * threadsv; /* Per-thread SVs ($_, $@ etc.) */ |
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226 | AV * specific; /* Thread-specific user data */ |
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227 | SV * errsv; /* Backing SV for $@ */ |
| 228 | HV * errhv; /* HV for what was %@ in pp_ctl.c */ |
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229 | perl_mutex mutex; /* For the fields others can change */ |
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230 | U32 tid; |
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231 | struct perl_thread *next, *prev; /* Circular linked list of threads */ |
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232 | JMPENV Tstart_env; /* Top of top_env longjmp() chain */ |
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233 | #ifdef HAVE_THREAD_INTERN |
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234 | struct thread_intern i; /* Platform-dependent internals */ |
| 235 | #endif |
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236 | char trailing_nul; /* For the sake of thrsv and oursv */ |
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237 | }; |
| 238 | |
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239 | typedef struct perl_thread *Thread; |
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240 | |
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241 | /* Values and macros for thr->flags */ |
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242 | #define THRf_STATE_MASK 7 |
| 243 | #define THRf_R_JOINABLE 0 |
| 244 | #define THRf_R_JOINED 1 |
| 245 | #define THRf_R_DETACHED 2 |
| 246 | #define THRf_ZOMBIE 3 |
| 247 | #define THRf_DEAD 4 |
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248 | |
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249 | #define THRf_DID_DIE 8 |
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250 | |
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251 | /* ThrSTATE(t) and ThrSETSTATE(t) must only be called while holding t->mutex */ |
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252 | #define ThrSTATE(t) ((t)->flags & THRf_STATE_MASK) |
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253 | #define ThrSETSTATE(t, s) STMT_START { \ |
| 605e5515 |
254 | (t)->flags &= ~THRf_STATE_MASK; \ |
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255 | (t)->flags |= (s); \ |
| 605e5515 |
256 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), \ |
| 257 | "thread %p set to state %d\n", (t), (s))); \ |
| f93b4edd |
258 | } STMT_END |
| 259 | |
| 260 | typedef struct condpair { |
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261 | perl_mutex mutex; /* Protects all other fields */ |
| 262 | perl_cond owner_cond; /* For when owner changes at all */ |
| 263 | perl_cond cond; /* For cond_signal and cond_broadcast */ |
| 264 | Thread owner; /* Currently owning thread */ |
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265 | } condpair_t; |
| 266 | |
| 267 | #define MgMUTEXP(mg) (&((condpair_t *)(mg->mg_ptr))->mutex) |
| 268 | #define MgOWNERCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->owner_cond) |
| 269 | #define MgCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->cond) |
| 270 | #define MgOWNER(mg) ((condpair_t *)(mg->mg_ptr))->owner |
| 271 | |
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272 | #undef stack_base |
| 273 | #undef stack_sp |
| 274 | #undef stack_max |
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275 | #undef curstack |
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276 | #undef mainstack |
| 277 | #undef markstack |
| 278 | #undef markstack_ptr |
| 279 | #undef markstack_max |
| 280 | #undef scopestack |
| 281 | #undef scopestack_ix |
| 282 | #undef scopestack_max |
| 283 | #undef savestack |
| 284 | #undef savestack_ix |
| 285 | #undef savestack_max |
| 286 | #undef retstack |
| 287 | #undef retstack_ix |
| 288 | #undef retstack_max |
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289 | #undef curcop |
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290 | #undef cxstack |
| 291 | #undef cxstack_ix |
| 292 | #undef cxstack_max |
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293 | #undef defstash |
| 294 | #undef curstash |
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295 | #undef tmps_stack |
| 296 | #undef tmps_floor |
| 297 | #undef tmps_ix |
| 298 | #undef tmps_max |
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299 | #undef curpad |
| 300 | #undef Sv |
| 301 | #undef Xpv |
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302 | #undef statbuf |
| 303 | #undef timesbuf |
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304 | #undef tainted |
| 305 | #undef curpm |
| 306 | #undef nrs |
| 307 | #undef rs |
| 308 | #undef last_in_gv |
| 309 | #undef ofs |
| 310 | #undef ofslen |
| 311 | #undef defoutgv |
| 312 | #undef chopset |
| 313 | #undef formtarget |
| 314 | #undef bodytarget |
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315 | #undef start_env |
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316 | #undef toptarget |
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317 | #undef top_env |
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318 | #undef in_eval |
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319 | #undef restartop |
| 320 | #undef delaymagic |
| 321 | #undef dirty |
| 322 | #undef localizing |
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323 | |
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324 | #define stack_base (thr->Tstack_base) |
| 325 | #define stack_sp (thr->Tstack_sp) |
| 326 | #define stack_max (thr->Tstack_max) |
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327 | #ifdef OP_IN_REGISTER |
| 328 | #define opsave (thr->Topsave) |
| 329 | #else |
| 330 | #undef op |
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331 | #define op (thr->Top) |
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332 | #endif |
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333 | #define curcop (thr->Tcurcop) |
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334 | #define stack (thr->Tstack) |
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335 | #define curstack (thr->Tcurstack) |
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336 | #define mainstack (thr->Tmainstack) |
| 337 | #define markstack (thr->Tmarkstack) |
| 338 | #define markstack_ptr (thr->Tmarkstack_ptr) |
| 339 | #define markstack_max (thr->Tmarkstack_max) |
| 340 | #define scopestack (thr->Tscopestack) |
| 341 | #define scopestack_ix (thr->Tscopestack_ix) |
| 342 | #define scopestack_max (thr->Tscopestack_max) |
| 343 | |
| 344 | #define savestack (thr->Tsavestack) |
| 345 | #define savestack_ix (thr->Tsavestack_ix) |
| 346 | #define savestack_max (thr->Tsavestack_max) |
| 347 | |
| 348 | #define retstack (thr->Tretstack) |
| 349 | #define retstack_ix (thr->Tretstack_ix) |
| 350 | #define retstack_max (thr->Tretstack_max) |
| 351 | |
| 352 | #define cxstack (thr->Tcxstack) |
| 353 | #define cxstack_ix (thr->Tcxstack_ix) |
| 354 | #define cxstack_max (thr->Tcxstack_max) |
| 355 | |
| 356 | #define curpad (thr->Tcurpad) |
| 357 | #define Sv (thr->TSv) |
| 358 | #define Xpv (thr->TXpv) |
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359 | #define statbuf (thr->Tstatbuf) |
| 360 | #define timesbuf (thr->Ttimesbuf) |
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361 | #define tainted (thr->Ttainted) |
| 362 | #define tainted (thr->Ttainted) |
| 363 | #define curpm (thr->Tcurpm) |
| 364 | #define nrs (thr->Tnrs) |
| 365 | #define rs (thr->Trs) |
| 366 | #define last_in_gv (thr->Tlast_in_gv) |
| 367 | #define ofs (thr->Tofs) |
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368 | #define ofslen (thr->Tofslen) |
| a863c7d1 |
369 | #define defoutgv (thr->Tdefoutgv) |
| 370 | #define chopset (thr->Tchopset) |
| 371 | #define formtarget (thr->Tformtarget) |
| 372 | #define bodytarget (thr->Tbodytarget) |
| 373 | #define toptarget (thr->Ttoptarget) |
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374 | #define defstash (thr->Tdefstash) |
| 375 | #define curstash (thr->Tcurstash) |
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376 | |
| 377 | #define tmps_stack (thr->Ttmps_stack) |
| 378 | #define tmps_ix (thr->Ttmps_ix) |
| 379 | #define tmps_floor (thr->Ttmps_floor) |
| 380 | #define tmps_max (thr->Ttmps_max) |
| 381 | |
| 382 | #define in_eval (thr->Tin_eval) |
| 383 | #define restartop (thr->Trestartop) |
| 384 | #define delaymagic (thr->Tdelaymagic) |
| 385 | #define dirty (thr->Tdirty) |
| 386 | #define localizing (thr->Tlocalizing) |
| 387 | |
| 388 | #define top_env (thr->Ttop_env) |
| d55594ae |
389 | #define start_env (thr->Tstart_env) |
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390 | |
| ea0efc06 |
391 | #else |
| 392 | /* USE_THREADS is not defined */ |
| 393 | #define MUTEX_LOCK(m) |
| 394 | #define MUTEX_UNLOCK(m) |
| 395 | #define MUTEX_INIT(m) |
| 396 | #define MUTEX_DESTROY(m) |
| 397 | #define COND_INIT(c) |
| 398 | #define COND_SIGNAL(c) |
| 399 | #define COND_BROADCAST(c) |
| 400 | #define COND_WAIT(c, m) |
| 401 | #define COND_DESTROY(c) |
| 402 | |
| 403 | #define THR |
| 404 | /* Rats: if dTHR is just blank then the subsequent ";" throws an error */ |
| 405 | #define dTHR extern int errno |
| 11343788 |
406 | #endif /* USE_THREADS */ |
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