-#include "threads.h"
+#define PERL_NO_GET_CONTEXT
+#include "EXTERN.h"
+#include "perl.h"
+#include "XSUB.h"
+
+#ifdef WIN32
+#include <windows.h>
+#include <win32thread.h>
+#define PERL_THREAD_SETSPECIFIC(k,v) TlsSetValue(k,v)
+#define PERL_THREAD_GETSPECIFIC(k,v) v = TlsGetValue(k)
+#define PERL_THREAD_ALLOC_SPECIFIC(k) \
+STMT_START {\
+ if((k = TlsAlloc()) == TLS_OUT_OF_INDEXES) {\
+ PerlIO_printf(PerlIO_stderr(),"panic threads.h: TlsAlloc");\
+ exit(1);\
+ }\
+} STMT_END
+#else
+#include <pthread.h>
+#include <thread.h>
+
+#define PERL_THREAD_SETSPECIFIC(k,v) pthread_setspecific(k,v)
+#ifdef OLD_PTHREADS_API
+#define PERL_THREAD_DETACH(t) pthread_detach(&(t))
+#define PERL_THREAD_GETSPECIFIC(k,v) pthread_getspecific(k,&v)
+#define PERL_THREAD_ALLOC_SPECIFIC(k) STMT_START {\
+ if(pthread_keycreate(&(k),0)) {\
+ PerlIO_printf(PerlIO_stderr(), "panic threads.h: pthread_key_create");\
+ exit(1);\
+ }\
+} STMT_END
+#else
+#define PERL_THREAD_DETACH(t) pthread_detach((t))
+#define PERL_THREAD_GETSPECIFIC(k,v) v = pthread_getspecific(k)
+#define PERL_THREAD_ALLOC_SPECIFIC(k) STMT_START {\
+ if(pthread_key_create(&(k),0)) {\
+ PerlIO_printf(PerlIO_stderr(), "panic threads.h: pthread_key_create");\
+ exit(1);\
+ }\
+} STMT_END
+#endif
+#endif
+
+typedef struct ithread_s {
+ struct ithread_s *next; /* next thread in the list */
+ struct ithread_s *prev; /* prev thread in the list */
+ PerlInterpreter *interp; /* The threads interpreter */
+ I32 tid; /* threads module's thread id */
+ perl_mutex mutex; /* mutex for updating things in this struct */
+ I32 count; /* how many SVs have a reference to us */
+ signed char detached; /* are we detached ? */
+ SV* init_function; /* Code to run */
+ SV* params; /* args to pass function */
+#ifdef WIN32
+ DWORD thr; /* OS's idea if thread id */
+ HANDLE handle; /* OS's waitable handle */
+#else
+ pthread_t thr; /* OS's handle for the thread */
+#endif
+} ithread;
+
+ithread *threads;
+
+/* Macros to supply the aTHX_ in an embed.h like manner */
+#define ithread_join(thread) Perl_ithread_join(aTHX_ thread)
+#define ithread_DESTROY(thread) Perl_ithread_DESTROY(aTHX_ thread)
+#define ithread_CLONE(thread) Perl_ithread_CLONE(aTHX_ thread)
+#define ithread_detach(thread) Perl_ithread_detach(aTHX_ thread)
+#define ithread_tid(thread) ((thread)->tid)
+
+static perl_mutex create_mutex; /* protects the creation of threads ??? */
+
+I32 tid_counter = 0;
+
+perl_key self_key;
+
+/*
+ * Clear up after thread is done with
+ */
+void
+Perl_ithread_destruct (pTHX_ ithread* thread)
+{
+ MUTEX_LOCK(&thread->mutex);
+ Perl_warn(aTHX_ "destruct %d with count=%d",thread->tid,thread->count);
+ if (thread->count != 0) {
+ MUTEX_UNLOCK(&thread->mutex);
+ return;
+ }
+ MUTEX_UNLOCK(&thread->mutex);
+ MUTEX_LOCK(&create_mutex);
+ /* Remove from circular list of threads */
+ if (thread->next == thread) {
+ /* last one should never get here ? */
+ threads = NULL;
+ }
+ else {
+ thread->next->prev = thread->prev->next;
+ thread->prev->next = thread->next->prev;
+ if (threads == thread) {
+ threads = thread->next;
+ }
+ }
+ MUTEX_UNLOCK(&create_mutex);
+ /* Thread is now disowned */
+ if (thread->interp) {
+ dTHXa(thread->interp);
+ PERL_SET_CONTEXT(thread->interp);
+ perl_destruct(thread->interp);
+ perl_free(thread->interp);
+ thread->interp = NULL;
+ }
+ PERL_SET_CONTEXT(aTHX);
+}
+
+
+/* MAGIC (in mg.h sense) hooks */
+
+int
+ithread_mg_get(pTHX_ SV *sv, MAGIC *mg)
+{
+ ithread *thread = (ithread *) mg->mg_ptr;
+ SvIVX(sv) = PTR2IV(thread);
+ SvIOK_on(sv);
+ return 0;
+}
+
+int
+ithread_mg_free(pTHX_ SV *sv, MAGIC *mg)
+{
+ ithread *thread = (ithread *) mg->mg_ptr;
+ MUTEX_LOCK(&thread->mutex);
+ Perl_warn(aTHX_ "Unmagic %d with count=%d",thread->tid,thread->count);
+ thread->count--;
+ MUTEX_UNLOCK(&thread->mutex);
+ /* This is safe as it re-checks count */
+ Perl_ithread_destruct(aTHX_ thread);
+ return 0;
+}
+
+int
+ithread_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS *param)
+{
+ ithread *thread = (ithread *) mg->mg_ptr;
+ MUTEX_LOCK(&thread->mutex);
+ Perl_warn(aTHX_ "DUP %d with count=%d",thread->tid,thread->count);
+ thread->count++;
+ MUTEX_UNLOCK(&thread->mutex);
+ return 0;
+}
+
+MGVTBL ithread_vtbl = {
+ ithread_mg_get, /* get */
+ 0, /* set */
+ 0, /* len */
+ 0, /* clear */
+ ithread_mg_free, /* free */
+ 0, /* copy */
+ ithread_mg_dup /* dup */
+};
+
/*
* Starts executing the thread. Needs to clean up memory a tad better.
+ * Passed as the C level function to run in the new thread
*/
#ifdef WIN32
-THREAD_RET_TYPE Perl_thread_run(LPVOID arg) {
+THREAD_RET_TYPE
+Perl_ithread_run(LPVOID arg) {
#else
-void* Perl_thread_run(void * arg) {
+void*
+Perl_ithread_run(void * arg) {
#endif
ithread* thread = (ithread*) arg;
- SV* thread_tid_ptr;
- SV* thread_ptr;
dTHXa(thread->interp);
PERL_SET_CONTEXT(thread->interp);
+ PERL_THREAD_SETSPECIFIC(self_key,thread);
+#if 0
+ /* Far from clear messing with ->thr child-side is a good idea */
+ MUTEX_LOCK(&thread->mutex);
#ifdef WIN32
thread->thr = GetCurrentThreadId();
#else
thread->thr = pthread_self();
#endif
+ MUTEX_UNLOCK(&thread->mutex);
+#endif
- SHAREDSvLOCK(threads);
- SHAREDSvEDIT(threads);
- PERL_THREAD_SETSPECIFIC(self_key,INT2PTR(void*,thread->tid));
- thread_tid_ptr = Perl_newSVuv(PL_sharedsv_space, thread->tid);
- thread_ptr = Perl_newSVuv(PL_sharedsv_space, PTR2UV(thread));
- hv_store_ent((HV*)SHAREDSvGET(threads), thread_tid_ptr, thread_ptr,0);
- SvREFCNT_dec(thread_tid_ptr);
- SHAREDSvRELEASE(threads);
- SHAREDSvUNLOCK(threads);
PL_perl_destruct_level = 2;
{
-
- AV* params;
- I32 len;
+ AV* params = (AV*) SvRV(thread->params);
+ I32 len = av_len(params)+1;
int i;
dSP;
- params = (AV*) SvRV(thread->params);
- len = av_len(params);
ENTER;
SAVETMPS;
PUSHMARK(SP);
- if(len > -1) {
- for(i = 0; i < len + 1; i++) {
- XPUSHs(av_shift(params));
- }
+ for(i = 0; i < len; i++) {
+ XPUSHs(av_shift(params));
}
PUTBACK;
- call_sv(thread->init_function, G_DISCARD);
+ call_sv(thread->init_function, G_DISCARD|G_EVAL);
+ SPAGAIN;
FREETMPS;
LEAVE;
-
-
+ SvREFCNT_dec(thread->params);
+ SvREFCNT_dec(thread->init_function);
}
- MUTEX_LOCK(&thread->mutex);
PerlIO_flush((PerlIO*)NULL);
- perl_destruct(thread->interp);
- perl_free(thread->interp);
- if(thread->detached == 1) {
+ MUTEX_LOCK(&thread->mutex);
+ Perl_warn(aTHX_ "finished %d with count=%d",thread->tid,thread->count);
+ if (thread->detached == 1) {
MUTEX_UNLOCK(&thread->mutex);
- Perl_thread_destruct(thread);
+ Perl_ithread_destruct(aTHX_ thread);
} else {
MUTEX_UNLOCK(&thread->mutex);
}
#else
return 0;
#endif
+}
+
+SV *
+ithread_to_SV(pTHX_ SV *obj, ithread *thread, char *classname, bool inc)
+{
+ SV *sv;
+ MAGIC *mg;
+ if (inc) {
+ MUTEX_LOCK(&thread->mutex);
+ thread->count++;
+ Perl_warn(aTHX_ "SV for %d with count=%d",thread->tid,thread->count);
+ MUTEX_UNLOCK(&thread->mutex);
+ }
+ if (!obj)
+ obj = newSV(0);
+ sv = newSVrv(obj,classname);
+ sv_setiv(sv,PTR2IV(thread));
+ mg = sv_magicext(sv,Nullsv,PERL_MAGIC_shared_scalar,&ithread_vtbl,(char *)thread,0);
+ mg->mg_flags |= MGf_DUP;
+ SvREADONLY_on(sv);
+ return obj;
+}
+ithread *
+SV_to_ithread(pTHX_ SV *sv)
+{
+ ithread *thread;
+ if (SvROK(sv))
+ {
+ thread = INT2PTR(ithread*, SvIV(SvRV(sv)));
+ }
+ else
+ {
+ PERL_THREAD_GETSPECIFIC(self_key,thread);
+ }
+ return thread;
}
/*
- * iThread->create();
+ * iThread->create(); ( aka iThread->new() )
+ * Called in context of parent thread
*/
-SV* Perl_thread_create(char* class, SV* init_function, SV* params) {
- ithread* thread = malloc(sizeof(ithread));
- SV* obj_ref;
- SV* obj;
- SV* temp_store;
- PerlInterpreter *current_perl;
- CLONE_PARAMS clone_param;
-
- MUTEX_LOCK(&create_mutex);
- obj_ref = newSViv(0);
- obj = newSVrv(obj_ref, class);
- sv_setiv(obj, PTR2IV(thread));
- SvREADONLY_on(obj);
- PerlIO_flush((PerlIO*)NULL);
- current_perl = PERL_GET_CONTEXT;
-
+SV *
+Perl_ithread_create(pTHX_ SV *obj, char* classname, SV* init_function, SV* params)
+{
+ ithread* thread;
+ CLONE_PARAMS clone_param;
+
+ MUTEX_LOCK(&create_mutex);
+ thread = PerlMemShared_malloc(sizeof(ithread));
+ Zero(thread,1,ithread);
+ thread->next = threads;
+ thread->prev = threads->prev;
+ thread->prev->next = thread;
+ /* Set count to 1 immediately in case thread exits before
+ * we return to caller !
+ */
+ thread->count = 1;
+ MUTEX_INIT(&thread->mutex);
+ thread->tid = tid_counter++;
+ thread->detached = 0;
+ /* "Clone" our interpreter into the thread's interpreter
+ * This gives thread access to "static data" and code.
+ */
- temp_store = Perl_get_sv(current_perl, "threads::origthread", TRUE | GV_ADDMULTI);
- sv_setiv(temp_store,PTR2IV(current_perl));
- temp_store = NULL;
+ PerlIO_flush((PerlIO*)NULL);
-
#ifdef WIN32
- thread->interp = perl_clone(current_perl, CLONEf_KEEP_PTR_TABLE | CLONEf_CLONE_HOST);
+ thread->interp = perl_clone(aTHX, CLONEf_KEEP_PTR_TABLE | CLONEf_CLONE_HOST);
#else
- thread->interp = perl_clone(current_perl, CLONEf_KEEP_PTR_TABLE);
+ thread->interp = perl_clone(aTHX, CLONEf_KEEP_PTR_TABLE);
#endif
-
clone_param.flags = 0;
thread->init_function = Perl_sv_dup(thread->interp, init_function, &clone_param);
- if(SvREFCNT(thread->init_function) == 0) {
+ if (SvREFCNT(thread->init_function) == 0) {
SvREFCNT_inc(thread->init_function);
}
ptr_table_free(PL_ptr_table);
PL_ptr_table = NULL;
+ PERL_SET_CONTEXT(aTHX);
-
-
- PERL_SET_CONTEXT(current_perl);
-
-
- /* let's init the thread */
-
- MUTEX_INIT(&thread->mutex);
- thread->tid = tid_counter++;
- thread->detached = 0;
- thread->count = 1;
+ /* Start the thread */
#ifdef WIN32
- thread->handle = CreateThread(NULL, 0, Perl_thread_run,
+ thread->handle = CreateThread(NULL, 0, Perl_ithread_run,
(LPVOID)thread, 0, &thread->thr);
-
#else
{
static pthread_attr_t attr;
# endif
#ifdef OLD_PTHREADS_API
- pthread_create( &thread->thr, attr, Perl_thread_run, (void *)thread);
+ pthread_create( &thread->thr, attr, Perl_ithread_run, (void *)thread);
#else
- pthread_create( &thread->thr, &attr, Perl_thread_run, (void *)thread);
+ pthread_create( &thread->thr, &attr, Perl_ithread_run, (void *)thread);
#endif
}
#endif
MUTEX_UNLOCK(&create_mutex);
+ return ithread_to_SV(aTHX_ obj, thread, classname, FALSE);
+}
- return obj_ref;
+SV*
+Perl_ithread_self (pTHX_ SV *obj, char* Class)
+{
+ ithread *thread;
+ PERL_THREAD_GETSPECIFIC(self_key,thread);
+ return ithread_to_SV(aTHX_ obj, thread, Class, TRUE);
}
/*
- * returns the id of the thread
+ * joins the thread this code needs to take the returnvalue from the
+ * call_sv and send it back
*/
-I32 Perl_thread_tid (SV* obj) {
- ithread* thread;
- if(!SvROK(obj)) {
- obj = Perl_thread_self(SvPV_nolen(obj));
- thread = INT2PTR(ithread*, SvIV(SvRV(obj)));
- SvREFCNT_dec(obj);
- } else {
- thread = INT2PTR(ithread*, SvIV(SvRV(obj)));
- }
- return thread->tid;
-}
-SV* Perl_thread_self (char* class) {
- dTHX;
- SV* obj_ref;
- SV* obj;
- SV* thread_tid_ptr;
- SV* thread_ptr;
- HE* thread_entry;
- void* id;
- PERL_THREAD_GETSPECIFIC(self_key,id);
- SHAREDSvLOCK(threads);
- SHAREDSvEDIT(threads);
-
- thread_tid_ptr = Perl_newSVuv(PL_sharedsv_space, PTR2UV(id));
-
- thread_entry = Perl_hv_fetch_ent(PL_sharedsv_space,
- (HV*) SHAREDSvGET(threads),
- thread_tid_ptr, 0,0);
- thread_ptr = HeVAL(thread_entry);
- SvREFCNT_dec(thread_tid_ptr);
- SHAREDSvRELEASE(threads);
- SHAREDSvUNLOCK(threads);
-
- obj_ref = newSViv(0);
- obj = newSVrv(obj_ref, class);
- sv_setsv(obj, thread_ptr);
- SvREADONLY_on(obj);
- return obj_ref;
+void
+Perl_ithread_CLONE(pTHX_ SV *obj)
+{
+ if (SvROK(obj))
+ {
+ ithread *thread = SV_to_ithread(aTHX_ obj);
+ }
+ else
+ {
+ Perl_warn(aTHX_ "CLONE %_",obj);
+ }
}
-/*
- * joins the thread this code needs to take the returnvalue from the
- * call_sv and send it back */
-
-void Perl_thread_join(SV* obj) {
- ithread* thread = INT2PTR(ithread*, SvIV(SvRV(obj)));
+void
+Perl_ithread_join(pTHX_ SV *obj)
+{
+ ithread *thread = SV_to_ithread(aTHX_ obj);
+ MUTEX_LOCK(&thread->mutex);
+ Perl_warn(aTHX_ "joining %d with count=%d",thread->tid,thread->count);
+ if (!thread->detached) {
#ifdef WIN32
DWORD waitcode;
- waitcode = WaitForSingleObject(thread->handle, INFINITE);
#else
void *retval;
- pthread_join(thread->thr,&retval);
#endif
-}
-
-/* detaches a thread
- * needs to better clean up memory */
-
-void Perl_thread_detach(SV* obj) {
- ithread* thread = INT2PTR(ithread*, SvIV(SvRV(obj)));
- MUTEX_LOCK(&thread->mutex);
- thread->detached = 1;
- PERL_THREAD_DETACH(thread->thr);
MUTEX_UNLOCK(&thread->mutex);
-}
-
-void Perl_thread_DESTROY (SV* obj) {
- ithread* thread = INT2PTR(ithread*, SvIV(SvRV(obj)));
-
+#ifdef WIN32
+ waitcode = WaitForSingleObject(thread->handle, INFINITE);
+#else
+ pthread_join(thread->thr,&retval);
+#endif
+ Perl_warn(aTHX_ "joined %d with count=%d",thread->tid,thread->count);
+ /* We have finished with it */
MUTEX_LOCK(&thread->mutex);
- thread->count--;
+ thread->detached = 2;
MUTEX_UNLOCK(&thread->mutex);
- Perl_thread_destruct(thread);
-}
-
-void Perl_thread_destruct (ithread* thread) {
- return;
- MUTEX_LOCK(&thread->mutex);
- if(thread->count != 0) {
- MUTEX_UNLOCK(&thread->mutex);
- return;
- }
+ sv_unmagic(SvRV(obj),PERL_MAGIC_shared_scalar);
+ }
+ else {
MUTEX_UNLOCK(&thread->mutex);
- /* it is safe noone is holding a ref to this */
- /*printf("proper destruction!\n");*/
+ Perl_croak(aTHX_ "Cannot join a detached thread");
+ }
}
-MODULE = threads PACKAGE = threads
-BOOT:
- Perl_sharedsv_init(aTHX);
- PERL_THREAD_ALLOC_SPECIFIC(self_key);
- PL_perl_destruct_level = 2;
- threads = Perl_sharedsv_new(aTHX);
- SHAREDSvEDIT(threads);
- SHAREDSvGET(threads) = (SV *)newHV();
- SHAREDSvRELEASE(threads);
- {
-
-
- SV* temp = get_sv("threads::sharedsv_space", TRUE | GV_ADDMULTI);
- SV* temp2 = newSViv(PTR2IV(PL_sharedsv_space));
- sv_setsv( temp , temp2 );
- }
- {
- ithread* thread = malloc(sizeof(ithread));
- SV* thread_tid_ptr;
- SV* thread_ptr;
- MUTEX_INIT(&thread->mutex);
- thread->tid = 0;
+void
+Perl_ithread_detach(pTHX_ ithread *thread)
+{
+ MUTEX_LOCK(&thread->mutex);
+ if (!thread->detached) {
+ thread->detached = 1;
#ifdef WIN32
- thread->thr = GetCurrentThreadId();
+ CloseHandle(thread->handle);
+ thread->handle = 0;
#else
- thread->thr = pthread_self();
+ PERL_THREAD_DETACH(thread->thr);
#endif
- SHAREDSvEDIT(threads);
- PERL_THREAD_ALLOC_SPECIFIC(self_key);
- PERL_THREAD_SETSPECIFIC(self_key,0);
- thread_tid_ptr = Perl_newSVuv(PL_sharedsv_space, 0);
- thread_ptr = Perl_newSVuv(PL_sharedsv_space, PTR2UV(thread));
- hv_store_ent((HV*) SHAREDSvGET(threads), thread_tid_ptr, thread_ptr,0);
- SvREFCNT_dec(thread_tid_ptr);
- SHAREDSvRELEASE(threads);
- }
- MUTEX_INIT(&create_mutex);
-
-PROTOTYPES: DISABLE
+ }
+ MUTEX_UNLOCK(&thread->mutex);
+}
-SV *
-create (class, function_to_call, ...)
- char * class
- SV * function_to_call
- CODE:
- AV* params = newAV();
- if(items > 2) {
- int i;
- for(i = 2; i < items ; i++) {
- av_push(params, ST(i));
- }
- }
- RETVAL = Perl_thread_create(class, function_to_call, newRV_noinc((SV*) params));
- OUTPUT:
- RETVAL
-SV *
-new (class, function_to_call, ...)
- char * class
- SV * function_to_call
- CODE:
- AV* params = newAV();
- if(items > 2) {
- int i;
- for(i = 2; i < items ; i++) {
- av_push(params, ST(i));
- }
- }
- RETVAL = Perl_thread_create(class, function_to_call, newRV_noinc((SV*) params));
- OUTPUT:
- RETVAL
+void
+Perl_ithread_DESTROY(pTHX_ SV *sv)
+{
+ ithread *thread = SV_to_ithread(aTHX_ sv);
+ Perl_warn(aTHX_ "DESTROY %d with count=%d",thread->tid,thread->count);
+ sv_unmagic(SvRV(sv),PERL_MAGIC_shared_scalar);
+}
+MODULE = threads PACKAGE = threads PREFIX = ithread_
+PROTOTYPES: DISABLE
+void
+ithread_new (classname, function_to_call, ...)
+char * classname
+SV * function_to_call
+CODE:
+{
+ AV* params = newAV();
+ if (items > 2) {
+ int i;
+ for(i = 2; i < items ; i++) {
+ av_push(params, ST(i));
+ }
+ }
+ ST(0) = sv_2mortal(Perl_ithread_create(aTHX_ Nullsv, classname, function_to_call, newRV_noinc((SV*) params)));
+ XSRETURN(1);
+}
-SV *
-self (class)
- char* class
- CODE:
- RETVAL = Perl_thread_self(class);
- OUTPUT:
- RETVAL
+void
+ithread_self(char *classname)
+CODE:
+{
+ ST(0) = sv_2mortal(Perl_ithread_self(aTHX_ Nullsv,classname));
+ XSRETURN(1);
+}
int
-tid (obj)
- SV * obj;
- CODE:
- RETVAL = Perl_thread_tid(obj);
- OUTPUT:
- RETVAL
+ithread_tid(ithread *thread)
void
-join (obj)
- SV * obj
- PREINIT:
- I32* temp;
- PPCODE:
- temp = PL_markstack_ptr++;
- Perl_thread_join(obj);
- if (PL_markstack_ptr != temp) {
- /* truly void, because dXSARGS not invoked */
- PL_markstack_ptr = temp;
- XSRETURN_EMPTY; /* return empty stack */
- }
- /* must have used dXSARGS; list context implied */
- return; /* assume stack size is correct */
+ithread_join(SV *obj)
void
-detach (obj)
- SV * obj
- PREINIT:
- I32* temp;
- PPCODE:
- temp = PL_markstack_ptr++;
- Perl_thread_detach(obj);
- if (PL_markstack_ptr != temp) {
- /* truly void, because dXSARGS not invoked */
- PL_markstack_ptr = temp;
- XSRETURN_EMPTY; /* return empty stack */
- }
- /* must have used dXSARGS; list context implied */
- return; /* assume stack size is correct */
+ithread_detach(ithread *thread)
void
-DESTROY (obj)
- SV * obj
- PREINIT:
- I32* temp;
- PPCODE:
- temp = PL_markstack_ptr++;
- Perl_thread_DESTROY(obj);
- if (PL_markstack_ptr != temp) {
- /* truly void, because dXSARGS not invoked */
- PL_markstack_ptr = temp;
- XSRETURN_EMPTY; /* return empty stack */
- }
- /* must have used dXSARGS; list context implied */
- return; /* assume stack size is correct */
+ithread_DESTROY(SV *thread)
+
+void
+ithread_CLONE(SV *sv)
+
+BOOT:
+{
+ ithread* thread;
+ PERL_THREAD_ALLOC_SPECIFIC(self_key);
+ MUTEX_INIT(&create_mutex);
+ MUTEX_LOCK(&create_mutex);
+ thread = PerlMemShared_malloc(sizeof(ithread));
+ Zero(thread,1,ithread);
+ PL_perl_destruct_level = 2;
+ MUTEX_INIT(&thread->mutex);
+ threads = thread;
+ thread->next = thread;
+ thread->prev = thread;
+ thread->interp = aTHX;
+ thread->count = 1; /* imortal */
+ thread->tid = tid_counter++;
+ thread->detached = 1;
+#ifdef WIN32
+ thread->thr = GetCurrentThreadId();
+#else
+ thread->thr = pthread_self();
+#endif
+ PERL_THREAD_SETSPECIFIC(self_key,thread);
+ MUTEX_UNLOCK(&create_mutex);
+}
+