4 * Starts executing the thread. Needs to clean up memory a tad better.
8 THREAD_RET_TYPE Perl_thread_run(LPVOID arg) {
10 void* Perl_thread_run(void * arg) {
12 ithread* thread = (ithread*) arg;
15 dTHXa(thread->interp);
16 PERL_SET_CONTEXT(thread->interp);
19 thread->thr = GetCurrentThreadId();
21 thread->thr = pthread_self();
24 SHAREDSvLOCK(threads);
25 SHAREDSvEDIT(threads);
26 PERL_THREAD_ALLOC_SPECIFIC(self_key);
27 PERL_THREAD_SETSPECIFIC(self_key,INT2PTR(void*,thread->tid));
28 thread_tid_ptr = Perl_newSVuv(PL_sharedsv_space, thread->tid);
29 thread_ptr = Perl_newSVuv(PL_sharedsv_space, PTR2UV(thread));
30 hv_store_ent((HV*)SHAREDSvGET(threads), thread_tid_ptr, thread_ptr,0);
31 SvREFCNT_dec(thread_tid_ptr);
32 SHAREDSvRELEASE(threads);
33 SHAREDSvUNLOCK(threads);
34 PL_perl_destruct_level = 2;
42 params = (AV*) SvRV(thread->params);
48 for(i = 0; i < len + 1; i++) {
49 XPUSHs(av_shift(params));
53 call_sv(thread->init_function, G_DISCARD);
60 MUTEX_LOCK(&thread->mutex);
61 PerlIO_flush((PerlIO*)NULL);
62 perl_destruct(thread->interp);
63 perl_free(thread->interp);
64 if(thread->detached == 1) {
65 MUTEX_UNLOCK(&thread->mutex);
66 Perl_thread_destruct(thread);
68 MUTEX_UNLOCK(&thread->mutex);
82 SV* Perl_thread_create(char* class, SV* init_function, SV* params) {
83 ithread* thread = malloc(sizeof(ithread));
87 PerlInterpreter *current_perl;
89 MUTEX_LOCK(&create_mutex);
91 obj = newSVrv(obj_ref, class);
92 sv_setiv(obj, (IV)thread);
94 PerlIO_flush((PerlIO*)NULL);
95 current_perl = PERL_GET_CONTEXT;
98 * here we put the values of params and function to call onto
99 * namespace, this is so perl will properly clone them when we
103 temp_store = Perl_get_sv(current_perl, "threads::paramtempstore",
105 Perl_sv_setsv_flags(current_perl, temp_store,params, SV_GMAGIC);
109 temp_store = Perl_get_sv(current_perl, "threads::calltempstore",
111 Perl_sv_setsv_flags(current_perl,temp_store, init_function, SV_GMAGIC);
112 init_function = NULL;
116 thread->interp = perl_clone(current_perl, 4);
118 thread->interp = perl_clone(current_perl, 0);
121 thread->init_function = newSVsv(Perl_get_sv(thread->interp,
122 "threads::calltempstore",FALSE));
123 thread->params = newSVsv(Perl_get_sv(thread->interp,
124 "threads::paramtempstore",FALSE));
127 * And here we make sure we clean up the data we put in the
128 * namespace of iThread, both in the new and the calling
131 temp_store = Perl_get_sv(thread->interp, "threads::paramtempstore",FALSE);
132 Perl_sv_setsv_flags(thread->interp,temp_store, &PL_sv_undef, SV_GMAGIC);
134 temp_store = Perl_get_sv(thread->interp,"threads::calltempstore",FALSE);
135 Perl_sv_setsv_flags(thread->interp,temp_store, &PL_sv_undef, SV_GMAGIC);
137 PERL_SET_CONTEXT(current_perl);
139 temp_store = Perl_get_sv(current_perl,"threads::paramtempstore",FALSE);
140 Perl_sv_setsv_flags(current_perl, temp_store, &PL_sv_undef, SV_GMAGIC);
142 temp_store = Perl_get_sv(current_perl,"threads::calltempstore",FALSE);
143 Perl_sv_setsv_flags(current_perl, temp_store, &PL_sv_undef, SV_GMAGIC);
145 /* let's init the thread */
147 MUTEX_INIT(&thread->mutex);
148 thread->tid = tid_counter++;
149 thread->detached = 0;
154 thread->handle = CreateThread(NULL, 0, Perl_thread_run,
155 (LPVOID)thread, 0, &thread->thr);
160 static pthread_attr_t attr;
161 static int attr_inited = 0;
162 sigset_t fullmask, oldmask;
163 static int attr_joinable = PTHREAD_CREATE_JOINABLE;
166 pthread_attr_init(&attr);
168 # ifdef PTHREAD_ATTR_SETDETACHSTATE
169 PTHREAD_ATTR_SETDETACHSTATE(&attr, attr_joinable);
171 # ifdef THREAD_CREATE_NEEDS_STACK
172 if(pthread_attr_setstacksize(&attr, THREAD_CREATE_NEEDS_STACK))
173 croak("panic: pthread_attr_setstacksize failed");
176 #ifdef OLD_PTHREADS_API
177 pthread_create( &thread->thr, attr, Perl_thread_run, (void *)thread);
179 pthread_create( &thread->thr, &attr, Perl_thread_run, (void *)thread);
183 MUTEX_UNLOCK(&create_mutex);
189 * returns the id of the thread
191 I32 Perl_thread_tid (SV* obj) {
194 obj = Perl_thread_self(SvPV_nolen(obj));
195 thread = (ithread*)SvIV(SvRV(obj));
198 thread = (ithread*)SvIV(SvRV(obj));
203 SV* Perl_thread_self (char* class) {
211 PERL_THREAD_GETSPECIFIC(self_key,id);
212 SHAREDSvLOCK(threads);
213 SHAREDSvEDIT(threads);
215 thread_tid_ptr = Perl_newSVuv(PL_sharedsv_space, PTR2UV(id));
217 thread_entry = Perl_hv_fetch_ent(PL_sharedsv_space,
218 (HV*) SHAREDSvGET(threads),
219 thread_tid_ptr, 0,0);
220 thread_ptr = HeVAL(thread_entry);
221 SvREFCNT_dec(thread_tid_ptr);
222 SHAREDSvRELEASE(threads);
223 SHAREDSvUNLOCK(threads);
225 obj_ref = newSViv(0);
226 obj = newSVrv(obj_ref, class);
227 sv_setsv(obj, thread_ptr);
233 * joins the thread this code needs to take the returnvalue from the
234 * call_sv and send it back */
236 void Perl_thread_join(SV* obj) {
237 ithread* thread = (ithread*)SvIV(SvRV(obj));
240 waitcode = WaitForSingleObject(thread->handle, INFINITE);
243 pthread_join(thread->thr,&retval);
248 * needs to better clean up memory */
250 void Perl_thread_detach(SV* obj) {
251 ithread* thread = (ithread*)SvIV(SvRV(obj));
252 MUTEX_LOCK(&thread->mutex);
253 thread->detached = 1;
254 PERL_THREAD_DETACH(thread->thr);
255 MUTEX_UNLOCK(&thread->mutex);
258 void Perl_thread_DESTROY (SV* obj) {
259 ithread* thread = (ithread*)SvIV(SvRV(obj));
261 MUTEX_LOCK(&thread->mutex);
263 MUTEX_UNLOCK(&thread->mutex);
264 Perl_thread_destruct(thread);
267 void Perl_thread_destruct (ithread* thread) {
269 MUTEX_LOCK(&thread->mutex);
270 if(thread->count != 0) {
271 MUTEX_UNLOCK(&thread->mutex);
274 MUTEX_UNLOCK(&thread->mutex);
275 /* it is safe noone is holding a ref to this */
276 /*printf("proper destruction!\n");*/
279 MODULE = threads PACKAGE = threads
281 Perl_sharedsv_init(aTHX);
282 PL_perl_destruct_level = 2;
283 threads = Perl_sharedsv_new(aTHX);
284 SHAREDSvEDIT(threads);
285 SHAREDSvGET(threads) = (SV *)newHV();
286 SHAREDSvRELEASE(threads);
290 SV* temp = get_sv("threads::sharedsv_space", TRUE | GV_ADDMULTI);
291 SV* temp2 = newSViv((IV)PL_sharedsv_space );
292 sv_setsv( temp , temp2 );
295 ithread* thread = malloc(sizeof(ithread));
298 MUTEX_INIT(&thread->mutex);
301 thread->thr = GetCurrentThreadId();
303 thread->thr = pthread_self();
305 SHAREDSvEDIT(threads);
306 PERL_THREAD_ALLOC_SPECIFIC(self_key);
307 PERL_THREAD_SETSPECIFIC(self_key,0);
308 thread_tid_ptr = Perl_newSVuv(PL_sharedsv_space, 0);
309 thread_ptr = Perl_newSVuv(PL_sharedsv_space, PTR2UV(thread));
310 hv_store_ent((HV*) SHAREDSvGET(threads), thread_tid_ptr, thread_ptr,0);
311 SvREFCNT_dec(thread_tid_ptr);
312 SHAREDSvRELEASE(threads);
314 MUTEX_INIT(&create_mutex);
319 create (class, function_to_call, ...)
321 SV * function_to_call
323 AV* params = newAV();
326 for(i = 2; i < items ; i++) {
327 av_push(params, ST(i));
330 RETVAL = Perl_thread_create(class, function_to_call, newRV_noinc((SV*) params));
338 RETVAL = Perl_thread_self(class);
346 RETVAL = Perl_thread_tid(obj);
356 temp = PL_markstack_ptr++;
357 Perl_thread_join(obj);
358 if (PL_markstack_ptr != temp) {
359 /* truly void, because dXSARGS not invoked */
360 PL_markstack_ptr = temp;
361 XSRETURN_EMPTY; /* return empty stack */
363 /* must have used dXSARGS; list context implied */
364 return; /* assume stack size is correct */
372 temp = PL_markstack_ptr++;
373 Perl_thread_detach(obj);
374 if (PL_markstack_ptr != temp) {
375 /* truly void, because dXSARGS not invoked */
376 PL_markstack_ptr = temp;
377 XSRETURN_EMPTY; /* return empty stack */
379 /* must have used dXSARGS; list context implied */
380 return; /* assume stack size is correct */
388 temp = PL_markstack_ptr++;
389 Perl_thread_DESTROY(obj);
390 if (PL_markstack_ptr != temp) {
391 /* truly void, because dXSARGS not invoked */
392 PL_markstack_ptr = temp;
393 XSRETURN_EMPTY; /* return empty stack */
395 /* must have used dXSARGS; list context implied */
396 return; /* assume stack size is correct */