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47ba8780 |
1 | #include "threads.h" |
2 | |
47ba8780 |
3 | /* |
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4 | * Starts executing the thread. Needs to clean up memory a tad better. |
5 | */ |
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6 | |
7 | #ifdef WIN32 |
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8 | THREAD_RET_TYPE Perl_thread_run(LPVOID arg) { |
47ba8780 |
9 | #else |
e8f2bb9a |
10 | void* Perl_thread_run(void * arg) { |
47ba8780 |
11 | #endif |
5b414d21 |
12 | ithread* thread = (ithread*) arg; |
47ba8780 |
13 | SV* thread_tid_ptr; |
14 | SV* thread_ptr; |
15 | dTHXa(thread->interp); |
47ba8780 |
16 | PERL_SET_CONTEXT(thread->interp); |
17 | |
18 | #ifdef WIN32 |
19 | thread->thr = GetCurrentThreadId(); |
20 | #else |
21 | thread->thr = pthread_self(); |
22 | #endif |
23 | |
4f896ddc |
24 | SHAREDSvLOCK(threads); |
47ba8780 |
25 | SHAREDSvEDIT(threads); |
7f9a95ef |
26 | PERL_THREAD_SETSPECIFIC(self_key,INT2PTR(void*,thread->tid)); |
27 | thread_tid_ptr = Perl_newSVuv(PL_sharedsv_space, thread->tid); |
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28 | thread_ptr = Perl_newSVuv(PL_sharedsv_space, PTR2UV(thread)); |
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29 | hv_store_ent((HV*)SHAREDSvGET(threads), thread_tid_ptr, thread_ptr,0); |
30 | SvREFCNT_dec(thread_tid_ptr); |
31 | SHAREDSvRELEASE(threads); |
4f896ddc |
32 | SHAREDSvUNLOCK(threads); |
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33 | PL_perl_destruct_level = 2; |
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34 | |
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35 | { |
36 | |
37 | AV* params; |
38 | I32 len; |
39 | int i; |
40 | dSP; |
41 | params = (AV*) SvRV(thread->params); |
42 | len = av_len(params); |
43 | ENTER; |
44 | SAVETMPS; |
45 | PUSHMARK(SP); |
46 | if(len > -1) { |
47 | for(i = 0; i < len + 1; i++) { |
48 | XPUSHs(av_shift(params)); |
49 | } |
50 | } |
51 | PUTBACK; |
4f896ddc |
52 | call_sv(thread->init_function, G_DISCARD); |
47ba8780 |
53 | FREETMPS; |
54 | LEAVE; |
55 | |
56 | |
57 | } |
58 | |
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59 | MUTEX_LOCK(&thread->mutex); |
fd58862f |
60 | PerlIO_flush((PerlIO*)NULL); |
47ba8780 |
61 | perl_destruct(thread->interp); |
62 | perl_free(thread->interp); |
63 | if(thread->detached == 1) { |
64 | MUTEX_UNLOCK(&thread->mutex); |
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65 | Perl_thread_destruct(thread); |
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66 | } else { |
67 | MUTEX_UNLOCK(&thread->mutex); |
68 | } |
69 | #ifdef WIN32 |
70 | return (DWORD)0; |
e8f2bb9a |
71 | #else |
72 | return 0; |
47ba8780 |
73 | #endif |
74 | |
75 | } |
76 | |
47ba8780 |
77 | /* |
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78 | * iThread->create(); |
79 | */ |
47ba8780 |
80 | |
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81 | SV* Perl_thread_create(char* class, SV* init_function, SV* params) { |
47ba8780 |
82 | ithread* thread = malloc(sizeof(ithread)); |
83 | SV* obj_ref; |
84 | SV* obj; |
85 | SV* temp_store; |
47ba8780 |
86 | PerlInterpreter *current_perl; |
87 | |
88 | MUTEX_LOCK(&create_mutex); |
89 | obj_ref = newSViv(0); |
90 | obj = newSVrv(obj_ref, class); |
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91 | sv_setiv(obj, (IV)thread); |
92 | SvREADONLY_on(obj); |
b6a0b930 |
93 | PerlIO_flush((PerlIO*)NULL); |
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94 | current_perl = PERL_GET_CONTEXT; |
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95 | |
96 | /* |
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97 | * here we put the values of params and function to call onto |
98 | * namespace, this is so perl will properly clone them when we |
99 | * call perl_clone. |
100 | */ |
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101 | |
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102 | temp_store = Perl_get_sv(current_perl, "threads::paramtempstore", |
103 | TRUE | GV_ADDMULTI); |
485caab9 |
104 | Perl_sv_setsv_flags(current_perl, temp_store,params, SV_GMAGIC); |
47ba8780 |
105 | params = NULL; |
106 | temp_store = NULL; |
107 | |
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108 | temp_store = Perl_get_sv(current_perl, "threads::calltempstore", |
109 | TRUE | GV_ADDMULTI); |
485caab9 |
110 | Perl_sv_setsv_flags(current_perl,temp_store, init_function, SV_GMAGIC); |
4f896ddc |
111 | init_function = NULL; |
112 | temp_store = NULL; |
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113 | |
114 | #ifdef WIN32 |
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115 | thread->interp = perl_clone(current_perl, 4); |
47ba8780 |
116 | #else |
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117 | thread->interp = perl_clone(current_perl, 0); |
47ba8780 |
118 | #endif |
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119 | |
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120 | thread->init_function = newSVsv(Perl_get_sv(thread->interp, |
121 | "threads::calltempstore",FALSE)); |
122 | thread->params = newSVsv(Perl_get_sv(thread->interp, |
123 | "threads::paramtempstore",FALSE)); |
47ba8780 |
124 | |
125 | /* |
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126 | * And here we make sure we clean up the data we put in the |
127 | * namespace of iThread, both in the new and the calling |
128 | * inteprreter */ |
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129 | |
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130 | temp_store = Perl_get_sv(thread->interp, "threads::paramtempstore",FALSE); |
485caab9 |
131 | Perl_sv_setsv_flags(thread->interp,temp_store, &PL_sv_undef, SV_GMAGIC); |
47ba8780 |
132 | |
133 | temp_store = Perl_get_sv(thread->interp,"threads::calltempstore",FALSE); |
485caab9 |
134 | Perl_sv_setsv_flags(thread->interp,temp_store, &PL_sv_undef, SV_GMAGIC); |
47ba8780 |
135 | |
136 | PERL_SET_CONTEXT(current_perl); |
137 | |
138 | temp_store = Perl_get_sv(current_perl,"threads::paramtempstore",FALSE); |
485caab9 |
139 | Perl_sv_setsv_flags(current_perl, temp_store, &PL_sv_undef, SV_GMAGIC); |
47ba8780 |
140 | |
141 | temp_store = Perl_get_sv(current_perl,"threads::calltempstore",FALSE); |
485caab9 |
142 | Perl_sv_setsv_flags(current_perl, temp_store, &PL_sv_undef, SV_GMAGIC); |
47ba8780 |
143 | |
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144 | /* let's init the thread */ |
47ba8780 |
145 | |
146 | MUTEX_INIT(&thread->mutex); |
147 | thread->tid = tid_counter++; |
148 | thread->detached = 0; |
149 | thread->count = 1; |
150 | |
151 | #ifdef WIN32 |
152 | |
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153 | thread->handle = CreateThread(NULL, 0, Perl_thread_run, |
47ba8780 |
154 | (LPVOID)thread, 0, &thread->thr); |
155 | |
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156 | |
157 | #else |
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158 | { |
159 | static pthread_attr_t attr; |
160 | static int attr_inited = 0; |
161 | sigset_t fullmask, oldmask; |
162 | static int attr_joinable = PTHREAD_CREATE_JOINABLE; |
163 | if (!attr_inited) { |
164 | attr_inited = 1; |
165 | pthread_attr_init(&attr); |
166 | } |
167 | # ifdef PTHREAD_ATTR_SETDETACHSTATE |
168 | PTHREAD_ATTR_SETDETACHSTATE(&attr, attr_joinable); |
169 | # endif |
3eb37d38 |
170 | # ifdef THREAD_CREATE_NEEDS_STACK |
171 | if(pthread_attr_setstacksize(&attr, THREAD_CREATE_NEEDS_STACK)) |
172 | croak("panic: pthread_attr_setstacksize failed"); |
173 | # endif |
174 | |
3ad0b7d6 |
175 | #ifdef OLD_PTHREADS_API |
fa26028c |
176 | pthread_create( &thread->thr, attr, Perl_thread_run, (void *)thread); |
47ba8780 |
177 | #else |
3ad0b7d6 |
178 | pthread_create( &thread->thr, &attr, Perl_thread_run, (void *)thread); |
47ba8780 |
179 | #endif |
3ad0b7d6 |
180 | } |
82c40bf6 |
181 | #endif |
47ba8780 |
182 | MUTEX_UNLOCK(&create_mutex); |
183 | |
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184 | return obj_ref; |
47ba8780 |
185 | } |
186 | |
187 | /* |
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188 | * returns the id of the thread |
189 | */ |
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190 | I32 Perl_thread_tid (SV* obj) { |
47ba8780 |
191 | ithread* thread; |
192 | if(!SvROK(obj)) { |
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193 | obj = Perl_thread_self(SvPV_nolen(obj)); |
47ba8780 |
194 | thread = (ithread*)SvIV(SvRV(obj)); |
195 | SvREFCNT_dec(obj); |
196 | } else { |
197 | thread = (ithread*)SvIV(SvRV(obj)); |
198 | } |
199 | return thread->tid; |
200 | } |
201 | |
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202 | SV* Perl_thread_self (char* class) { |
47ba8780 |
203 | dTHX; |
204 | SV* obj_ref; |
205 | SV* obj; |
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206 | SV* thread_tid_ptr; |
207 | SV* thread_ptr; |
208 | HE* thread_entry; |
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209 | void* id; |
210 | PERL_THREAD_GETSPECIFIC(self_key,id); |
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211 | SHAREDSvLOCK(threads); |
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212 | SHAREDSvEDIT(threads); |
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213 | |
214 | thread_tid_ptr = Perl_newSVuv(PL_sharedsv_space, PTR2UV(id)); |
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215 | |
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216 | thread_entry = Perl_hv_fetch_ent(PL_sharedsv_space, |
217 | (HV*) SHAREDSvGET(threads), |
218 | thread_tid_ptr, 0,0); |
47ba8780 |
219 | thread_ptr = HeVAL(thread_entry); |
220 | SvREFCNT_dec(thread_tid_ptr); |
47ba8780 |
221 | SHAREDSvRELEASE(threads); |
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222 | SHAREDSvUNLOCK(threads); |
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223 | |
224 | obj_ref = newSViv(0); |
225 | obj = newSVrv(obj_ref, class); |
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226 | sv_setsv(obj, thread_ptr); |
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227 | SvREADONLY_on(obj); |
228 | return obj_ref; |
229 | } |
230 | |
231 | /* |
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232 | * joins the thread this code needs to take the returnvalue from the |
233 | * call_sv and send it back */ |
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234 | |
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235 | void Perl_thread_join(SV* obj) { |
47ba8780 |
236 | ithread* thread = (ithread*)SvIV(SvRV(obj)); |
237 | #ifdef WIN32 |
238 | DWORD waitcode; |
239 | waitcode = WaitForSingleObject(thread->handle, INFINITE); |
240 | #else |
241 | void *retval; |
242 | pthread_join(thread->thr,&retval); |
243 | #endif |
244 | } |
245 | |
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246 | /* detaches a thread |
247 | * needs to better clean up memory */ |
47ba8780 |
248 | |
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249 | void Perl_thread_detach(SV* obj) { |
47ba8780 |
250 | ithread* thread = (ithread*)SvIV(SvRV(obj)); |
251 | MUTEX_LOCK(&thread->mutex); |
252 | thread->detached = 1; |
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253 | PERL_THREAD_DETACH(thread->thr); |
47ba8780 |
254 | MUTEX_UNLOCK(&thread->mutex); |
255 | } |
256 | |
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257 | void Perl_thread_DESTROY (SV* obj) { |
47ba8780 |
258 | ithread* thread = (ithread*)SvIV(SvRV(obj)); |
259 | |
260 | MUTEX_LOCK(&thread->mutex); |
261 | thread->count--; |
262 | MUTEX_UNLOCK(&thread->mutex); |
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263 | Perl_thread_destruct(thread); |
47ba8780 |
264 | } |
265 | |
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266 | void Perl_thread_destruct (ithread* thread) { |
47ba8780 |
267 | return; |
268 | MUTEX_LOCK(&thread->mutex); |
269 | if(thread->count != 0) { |
270 | MUTEX_UNLOCK(&thread->mutex); |
271 | return; |
272 | } |
273 | MUTEX_UNLOCK(&thread->mutex); |
274 | /* it is safe noone is holding a ref to this */ |
275 | /*printf("proper destruction!\n");*/ |
276 | } |
277 | |
47ba8780 |
278 | MODULE = threads PACKAGE = threads |
279 | BOOT: |
280 | Perl_sharedsv_init(aTHX); |
89e0305a |
281 | PERL_THREAD_ALLOC_SPECIFIC(self_key); |
47ba8780 |
282 | PL_perl_destruct_level = 2; |
283 | threads = Perl_sharedsv_new(aTHX); |
284 | SHAREDSvEDIT(threads); |
e8f2bb9a |
285 | SHAREDSvGET(threads) = (SV *)newHV(); |
47ba8780 |
286 | SHAREDSvRELEASE(threads); |
287 | { |
288 | |
289 | |
290 | SV* temp = get_sv("threads::sharedsv_space", TRUE | GV_ADDMULTI); |
4f896ddc |
291 | SV* temp2 = newSViv((IV)PL_sharedsv_space ); |
47ba8780 |
292 | sv_setsv( temp , temp2 ); |
293 | } |
294 | { |
295 | ithread* thread = malloc(sizeof(ithread)); |
296 | SV* thread_tid_ptr; |
297 | SV* thread_ptr; |
298 | MUTEX_INIT(&thread->mutex); |
299 | thread->tid = 0; |
300 | #ifdef WIN32 |
301 | thread->thr = GetCurrentThreadId(); |
302 | #else |
303 | thread->thr = pthread_self(); |
304 | #endif |
d5ecd109 |
305 | SHAREDSvEDIT(threads); |
82c40bf6 |
306 | PERL_THREAD_ALLOC_SPECIFIC(self_key); |
7f9a95ef |
307 | PERL_THREAD_SETSPECIFIC(self_key,0); |
308 | thread_tid_ptr = Perl_newSVuv(PL_sharedsv_space, 0); |
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309 | thread_ptr = Perl_newSVuv(PL_sharedsv_space, PTR2UV(thread)); |
47ba8780 |
310 | hv_store_ent((HV*) SHAREDSvGET(threads), thread_tid_ptr, thread_ptr,0); |
4f896ddc |
311 | SvREFCNT_dec(thread_tid_ptr); |
d5ecd109 |
312 | SHAREDSvRELEASE(threads); |
47ba8780 |
313 | } |
314 | MUTEX_INIT(&create_mutex); |
315 | |
47ba8780 |
316 | PROTOTYPES: DISABLE |
317 | |
318 | SV * |
319 | create (class, function_to_call, ...) |
320 | char * class |
321 | SV * function_to_call |
322 | CODE: |
323 | AV* params = newAV(); |
324 | if(items > 2) { |
325 | int i; |
326 | for(i = 2; i < items ; i++) { |
327 | av_push(params, ST(i)); |
328 | } |
329 | } |
e6e315b9 |
330 | RETVAL = Perl_thread_create(class, function_to_call, newRV_noinc((SV*) params)); |
47ba8780 |
331 | OUTPUT: |
332 | RETVAL |
333 | |
334 | SV * |
8222d950 |
335 | new (class, function_to_call, ...) |
336 | char * class |
337 | SV * function_to_call |
338 | CODE: |
339 | AV* params = newAV(); |
340 | if(items > 2) { |
341 | int i; |
342 | for(i = 2; i < items ; i++) { |
343 | av_push(params, ST(i)); |
344 | } |
345 | } |
346 | RETVAL = Perl_thread_create(class, function_to_call, newRV_noinc((SV*) params)); |
347 | OUTPUT: |
348 | RETVAL |
349 | |
350 | |
351 | |
352 | SV * |
47ba8780 |
353 | self (class) |
354 | char* class |
355 | CODE: |
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356 | RETVAL = Perl_thread_self(class); |
47ba8780 |
357 | OUTPUT: |
358 | RETVAL |
359 | |
360 | int |
361 | tid (obj) |
362 | SV * obj; |
363 | CODE: |
e6e315b9 |
364 | RETVAL = Perl_thread_tid(obj); |
47ba8780 |
365 | OUTPUT: |
366 | RETVAL |
367 | |
368 | void |
369 | join (obj) |
370 | SV * obj |
371 | PREINIT: |
372 | I32* temp; |
373 | PPCODE: |
374 | temp = PL_markstack_ptr++; |
e6e315b9 |
375 | Perl_thread_join(obj); |
47ba8780 |
376 | if (PL_markstack_ptr != temp) { |
377 | /* truly void, because dXSARGS not invoked */ |
378 | PL_markstack_ptr = temp; |
379 | XSRETURN_EMPTY; /* return empty stack */ |
380 | } |
381 | /* must have used dXSARGS; list context implied */ |
382 | return; /* assume stack size is correct */ |
383 | |
384 | void |
385 | detach (obj) |
386 | SV * obj |
387 | PREINIT: |
388 | I32* temp; |
389 | PPCODE: |
390 | temp = PL_markstack_ptr++; |
e6e315b9 |
391 | Perl_thread_detach(obj); |
47ba8780 |
392 | if (PL_markstack_ptr != temp) { |
393 | /* truly void, because dXSARGS not invoked */ |
394 | PL_markstack_ptr = temp; |
395 | XSRETURN_EMPTY; /* return empty stack */ |
396 | } |
397 | /* must have used dXSARGS; list context implied */ |
398 | return; /* assume stack size is correct */ |
399 | |
47ba8780 |
400 | void |
401 | DESTROY (obj) |
402 | SV * obj |
403 | PREINIT: |
404 | I32* temp; |
405 | PPCODE: |
406 | temp = PL_markstack_ptr++; |
e6e315b9 |
407 | Perl_thread_DESTROY(obj); |
47ba8780 |
408 | if (PL_markstack_ptr != temp) { |
409 | /* truly void, because dXSARGS not invoked */ |
410 | PL_markstack_ptr = temp; |
411 | XSRETURN_EMPTY; /* return empty stack */ |
412 | } |
413 | /* must have used dXSARGS; list context implied */ |
414 | return; /* assume stack size is correct */ |
415 | |