}\
} STMT_END
#else
+#ifdef OS2
+typedef perl_os_thread pthread_t;
+#else
#include <pthread.h>
+#endif
#include <thread.h>
#define PERL_THREAD_SETSPECIFIC(k,v) pthread_setspecific(k,v)
threads = NULL;
}
else {
- thread->next->prev = thread->prev->next;
- thread->prev->next = thread->next->prev;
+ thread->next->prev = thread->prev;
+ thread->prev->next = thread->next;
if (threads == thread) {
threads = thread->next;
}
#endif
MUTEX_UNLOCK(&create_destruct_mutex);
/* Thread is now disowned */
- if (thread->interp) {
+
+ if(thread->interp) {
+ dTHXa(thread->interp);
+ ithread* current_thread;
PERL_SET_CONTEXT(thread->interp);
+ PERL_THREAD_GETSPECIFIC(self_key,current_thread);
+ PERL_THREAD_SETSPECIFIC(self_key,thread);
+
+
+
+ SvREFCNT_dec(thread->params);
+
+
+
+ thread->params = Nullsv;
perl_destruct(thread->interp);
- perl_free(thread->interp);
+ perl_free(thread->interp);
thread->interp = NULL;
+ PERL_THREAD_SETSPECIFIC(self_key,current_thread);
+
}
- PERL_SET_CONTEXT(aTHX);
MUTEX_UNLOCK(&thread->mutex);
+ MUTEX_DESTROY(&thread->mutex);
+ PerlMemShared_free(thread);
+
+ PERL_SET_CONTEXT(aTHX);
}
int
int veto_cleanup = 0;
MUTEX_LOCK(&create_destruct_mutex);
if (aTHX == PL_curinterp && active_threads != 1) {
- Perl_warn(aTHX_ "Cleanup skipped %d active threads", active_threads);
+ Perl_warn(aTHX_ "A thread exited while %" IVdf " threads were running",
+ (IV)active_threads);
veto_cleanup = 1;
}
MUTEX_UNLOCK(&create_destruct_mutex);
MUTEX_LOCK(&thread->mutex);
thread->count--;
if (thread->count == 0) {
- if (!(thread->state & (PERL_ITHR_DETACHED|PERL_ITHR_JOINED))) {
- Perl_warn(aTHX_ "Implicit detach");
- }
- MUTEX_UNLOCK(&thread->mutex);
- Perl_ithread_detach(aTHX_ thread);
+ if(thread->state & PERL_ITHR_FINISHED &&
+ (thread->state & PERL_ITHR_DETACHED ||
+ thread->state & PERL_ITHR_JOINED))
+ {
+ MUTEX_UNLOCK(&thread->mutex);
+ Perl_ithread_destruct(aTHX_ thread, "no reference");
+ }
+ else {
+ MUTEX_UNLOCK(&thread->mutex);
+ }
}
else {
MUTEX_UNLOCK(&thread->mutex);
}
PUTBACK;
len = call_sv(thread->init_function, thread->gimme|G_EVAL);
+
SPAGAIN;
for (i=len-1; i >= 0; i--) {
SV *sv = POPs;
av_store(params, i, SvREFCNT_inc(sv));
}
- PUTBACK;
if (SvTRUE(ERRSV)) {
- Perl_warn(aTHX_ "Died:%_",ERRSV);
+ Perl_warn(aTHX_ "thread failed to start: %" SVf, ERRSV);
}
FREETMPS;
LEAVE;
}
PerlIO_flush((PerlIO*)NULL);
- MUTEX_LOCK(&create_destruct_mutex);
- active_threads--;
- assert( active_threads >= 0 );
- MUTEX_UNLOCK(&create_destruct_mutex);
MUTEX_LOCK(&thread->mutex);
thread->state |= PERL_ITHR_FINISHED;
if (thread->state & PERL_ITHR_DETACHED) {
MUTEX_UNLOCK(&thread->mutex);
- SvREFCNT_dec(thread->params);
- thread->params = Nullsv;
Perl_ithread_destruct(aTHX_ thread, "detached finish");
} else {
MUTEX_UNLOCK(&thread->mutex);
}
+ MUTEX_LOCK(&create_destruct_mutex);
+ active_threads--;
+ assert( active_threads >= 0 );
+ MUTEX_UNLOCK(&create_destruct_mutex);
+
#ifdef WIN32
return (DWORD)0;
#else
SV_to_ithread(pTHX_ SV *sv)
{
ithread *thread;
+#ifdef OEMVS
+ void *ptr;
+#endif
if (SvROK(sv))
{
thread = INT2PTR(ithread*, SvIV(SvRV(sv)));
}
else
{
+#ifdef OEMVS
+ PERL_THREAD_GETSPECIFIC(self_key,ptr);
+ thread = (ithread *) ptr;
+#else
PERL_THREAD_GETSPECIFIC(self_key,thread);
+#endif
}
return thread;
}
{
ithread* thread;
CLONE_PARAMS clone_param;
+ ithread* current_thread;
+ SV** tmps_tmp = PL_tmps_stack;
+ I32 tmps_ix = PL_tmps_ix;
+
+ PERL_THREAD_GETSPECIFIC(self_key,current_thread);
MUTEX_LOCK(&create_destruct_mutex);
thread = PerlMemShared_malloc(sizeof(ithread));
Zero(thread,1,ithread);
thread->next = threads;
thread->prev = threads->prev;
+ threads->prev = thread;
thread->prev->next = thread;
/* Set count to 1 immediately in case thread exits before
* we return to caller !
MUTEX_INIT(&thread->mutex);
thread->tid = tid_counter++;
thread->gimme = GIMME_V;
- thread->state = (thread->gimme == G_VOID) ? 1 : 0;
/* "Clone" our interpreter into the thread's interpreter
* This gives thread access to "static data" and code.
*/
PerlIO_flush((PerlIO*)NULL);
+ PERL_THREAD_SETSPECIFIC(self_key,thread);
+
+ SAVEBOOL(PL_srand_called); /* Save this so it becomes the correct
+ value */
+ PL_srand_called = FALSE; /* Set it to false so we can detect
+ if it gets set during the clone */
#ifdef WIN32
thread->interp = perl_clone(aTHX, CLONEf_KEEP_PTR_TABLE | CLONEf_CLONE_HOST);
thread->interp = perl_clone(aTHX, CLONEf_KEEP_PTR_TABLE);
#endif
/* perl_clone leaves us in new interpreter's context.
- As it is tricky to spot implcit aTHX create a new scope
+ As it is tricky to spot an implicit aTHX, create a new scope
with aTHX matching the context for the duration of
our work for new interpreter.
*/
{
dTHXa(thread->interp);
+
/* Here we remove END blocks since they should only run
in the thread they are created
*/
if (SvREFCNT(thread->init_function) == 0) {
SvREFCNT_inc(thread->init_function);
}
+
+
thread->params = sv_dup(params, &clone_param);
SvREFCNT_inc(thread->params);
+
+
+ /* The code below checks that anything living on
+ the tmps stack and has been cloned (so it lives in the
+ ptr_table) has a refcount higher than 0
+
+ If the refcount is 0 it means that a something on the
+ stack/context was holding a reference to it and
+ since we init_stacks() in perl_clone that won't get
+ cleaned and we will get a leaked scalar.
+ The reason it was cloned was that it lived on the
+ @_ stack.
+
+ Example of this can be found in bugreport 15837
+ where calls in the parameter list end up as a temp
+
+ One could argue that this fix should be in perl_clone
+ */
+
+
+ while (tmps_ix > 0) {
+ SV* sv = (SV*)ptr_table_fetch(PL_ptr_table, tmps_tmp[tmps_ix]);
+ tmps_ix--;
+ if (sv && SvREFCNT(sv) == 0) {
+ SvREFCNT_inc(sv);
+ SvREFCNT_dec(sv);
+ }
+ }
+
+
+
SvTEMP_off(thread->init_function);
ptr_table_free(PL_ptr_table);
PL_ptr_table = NULL;
+ PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
}
-
+ PERL_THREAD_SETSPECIFIC(self_key,current_thread);
PERL_SET_CONTEXT(aTHX);
/* Start the thread */
#ifdef OLD_PTHREADS_API
pthread_create( &thread->thr, attr, Perl_ithread_run, (void *)thread);
#else
+ pthread_attr_setscope( &attr, PTHREAD_SCOPE_SYSTEM );
pthread_create( &thread->thr, &attr, Perl_ithread_run, (void *)thread);
#endif
}
known_threads++;
active_threads++;
MUTEX_UNLOCK(&create_destruct_mutex);
+ sv_2mortal(params);
+
return ithread_to_SV(aTHX_ obj, thread, classname, FALSE);
}
Perl_ithread_self (pTHX_ SV *obj, char* Class)
{
ithread *thread;
+#ifdef OEMVS
+ void *ptr;
+ PERL_THREAD_GETSPECIFIC(self_key,ptr);
+ thread = (ithread *) ptr;
+#else
PERL_THREAD_GETSPECIFIC(self_key,thread);
+#endif
return ithread_to_SV(aTHX_ obj, thread, Class, TRUE);
}
}
else
{
- Perl_warn(aTHX_ "CLONE %_",obj);
+ Perl_warn(aTHX_ "CLONE %" SVf,obj);
}
}
/* sv_dup over the args */
{
+ ithread* current_thread;
AV* params = (AV*) SvRV(thread->params);
CLONE_PARAMS clone_params;
clone_params.stashes = newAV();
+ clone_params.flags |= CLONEf_JOIN_IN;
PL_ptr_table = ptr_table_new();
+ PERL_THREAD_GETSPECIFIC(self_key,current_thread);
+ PERL_THREAD_SETSPECIFIC(self_key,thread);
+
+#if 0
+ {
+ I32 len = av_len(params)+1;
+ I32 i;
+ for(i = 0; i < len; i++) {
+ sv_dump(SvRV(AvARRAY(params)[i]));
+ }
+ }
+#endif
retparam = (AV*) sv_dup((SV*)params, &clone_params);
+#if 0
+ {
+ I32 len = av_len(retparam)+1;
+ I32 i;
+ for(i = 0; i < len; i++) {
+ sv_dump(SvRV(AvARRAY(retparam)[i]));
+ }
+ }
+#endif
+ PERL_THREAD_SETSPECIFIC(self_key,current_thread);
SvREFCNT_dec(clone_params.stashes);
SvREFCNT_inc(retparam);
ptr_table_free(PL_ptr_table);
/* We have finished with it */
thread->state |= PERL_ITHR_JOINED;
MUTEX_UNLOCK(&thread->mutex);
- sv_unmagic(SvRV(obj),PERL_MAGIC_shared_scalar);
- Perl_ithread_destruct(aTHX_ thread, "joined");
+
return retparam;
}
return (AV*)NULL;
if (items > 2) {
int i;
for(i = 2; i < items ; i++) {
- av_push(params, ST(i));
+ av_push(params, SvREFCNT_inc(ST(i)));
}
}
ST(0) = sv_2mortal(Perl_ithread_create(aTHX_ Nullsv, classname, function_to_call, newRV_noinc((SV*) params)));
}
void
+ithread_list(char *classname)
+PPCODE:
+{
+ ithread *curr_thread;
+ MUTEX_LOCK(&create_destruct_mutex);
+ curr_thread = threads;
+ if(curr_thread->tid != 0)
+ PUSHs( sv_2mortal(ithread_to_SV(aTHX_ NULL, curr_thread, classname, TRUE)));
+ while(curr_thread) {
+ curr_thread = curr_thread->next;
+ if(curr_thread == threads)
+ break;
+ if(curr_thread->state & PERL_ITHR_DETACHED ||
+ curr_thread->state & PERL_ITHR_JOINED)
+ continue;
+ PUSHs( sv_2mortal(ithread_to_SV(aTHX_ NULL, curr_thread, classname, TRUE)));
+ }
+ MUTEX_UNLOCK(&create_destruct_mutex);
+}
+
+
+void
ithread_self(char *classname)
CODE:
{
int i;
I32 len = AvFILL(params);
for (i = 0; i <= len; i++) {
- XPUSHs(av_shift(params));
+ SV* tmp = av_shift(params);
+ XPUSHs(tmp);
+ sv_2mortal(tmp);
}
SvREFCNT_dec(params);
}
void
-ithread_yield(ithread *thread)
+yield(...)
+CODE:
+{
+ YIELD;
+}
+
void
ithread_detach(ithread *thread)
projects / p5sagit/p5-mst-13.2.git / blobdiff