-#ifdef USE_THREADS
-#ifdef FAKE_THREADS
- Thread savethread = thr;
- LOGOP myop;
- dSP;
- I32 oldscope = scopestack_ix;
- I32 retval;
- AV *av;
- int i;
-
- DEBUG_L(PerlIO_printf(PerlIO_stderr(), "new thread %p starting at %s\n",
- thr, SvPEEK(TOPs)));
- thr = (Thread) arg;
- savemark = TOPMARK;
- thr->prev = thr->prev_run = savethread;
- thr->next = savethread->next;
- thr->next_run = savethread->next_run;
- savethread->next = savethread->next_run = thr;
- thr->wait_queue = 0;
- thr->private = 0;
-
- /* Now duplicate most of perl_call_sv but with a few twists */
- op = (OP*)&myop;
- Zero(op, 1, LOGOP);
- myop.op_flags = OPf_STACKED;
- myop.op_next = Nullop;
- myop.op_flags |= OPf_KNOW;
- myop.op_flags |= OPf_WANT_LIST;
- op = pp_entersub(ARGS);
- DEBUG_L(if (!op)
- PerlIO_printf(PerlIO_stderr(), "thread starts at Nullop\n"));
- /*
- * When this thread is next scheduled, we start in the right
- * place. When the thread runs off the end of the sub, perl.c
- * handles things, using savemark to figure out how much of the
- * stack is the return value for any join.
- */
- thr = savethread; /* back to the old thread */
- return 0;
-#else
- Thread thr = (Thread) arg;
- LOGOP myop;
- djSP;
- I32 oldmark = TOPMARK;
- I32 oldscope = scopestack_ix;
- I32 retval;
- SV *sv;
- AV *av = newAV();
- int i, ret;
- dJMPENV;
- DEBUG_L(PerlIO_printf(PerlIO_stderr(), "new thread %p waiting to start\n",
- thr));
-
- /* Don't call *anything* requiring dTHR until after SET_THR() */
- /*
- * Wait until our creator releases us. If we didn't do this, then
- * it would be potentially possible for out thread to carry on and
- * do stuff before our creator fills in our "self" field. For example,
- * if we went and created another thread which tried to JOIN with us,
- * then we'd be in a mess.
- */
- MUTEX_LOCK(&thr->mutex);
- MUTEX_UNLOCK(&thr->mutex);
-
- /*
- * It's safe to wait until now to set the thread-specific pointer
- * from our pthread_t structure to our struct perl_thread, since
- * we're the only thread who can get at it anyway.
- */
- SET_THR(thr);
-
- /* Only now can we use SvPEEK (which calls sv_newmortal which does dTHR) */
- DEBUG_L(PerlIO_printf(PerlIO_stderr(), "new thread %p starting at %s\n",
- thr, SvPEEK(TOPs)));
-
- sv = POPs;
- PUTBACK;
- perl_call_sv(sv, G_ARRAY|G_EVAL);
- SPAGAIN;
- retval = SP - (stack_base + oldmark);
- SP = stack_base + oldmark + 1;
- if (SvCUR(thr->errsv)) {
- MUTEX_LOCK(&thr->mutex);
- thr->flags |= THRf_DID_DIE;
- MUTEX_UNLOCK(&thr->mutex);
- av_store(av, 0, &sv_no);
- av_store(av, 1, newSVsv(thr->errsv));
- DEBUG_L(PerlIO_printf(PerlIO_stderr(), "%p died: %s\n",
- thr, SvPV(thr->errsv, na)));
- } else {
- DEBUG_L(STMT_START {
- for (i = 1; i <= retval; i++) {
- PerlIO_printf(PerlIO_stderr(), "%p return[%d] = %s\n",
- thr, i, SvPEEK(SP[i - 1]));
- }
- } STMT_END);
- av_store(av, 0, &sv_yes);
- for (i = 1; i <= retval; i++, SP++)
- sv_setsv(*av_fetch(av, i, TRUE), SvREFCNT_inc(*SP));
- }
-
- finishoff:
-#if 0
- /* removed for debug */
- SvREFCNT_dec(curstack);
-#endif
- SvREFCNT_dec(thr->cvcache);
- SvREFCNT_dec(thr->threadsv);
- SvREFCNT_dec(thr->specific);
- SvREFCNT_dec(thr->errsv);
- SvREFCNT_dec(thr->errhv);
-
- Safefree(markstack);
- Safefree(scopestack);
- Safefree(savestack);
- Safefree(retstack);
- Safefree(cxstack);
- Safefree(tmps_stack);
- Safefree(ofs);
-
- SvREFCNT_dec(rs);
- SvREFCNT_dec(nrs);
- SvREFCNT_dec(statname);
- Safefree(screamfirst);
- Safefree(screamnext);
- Safefree(reg_start_tmp);
- SvREFCNT_dec(lastscream);
-
- MUTEX_LOCK(&thr->mutex);
- DEBUG_L(PerlIO_printf(PerlIO_stderr(),
- "%p: threadstart finishing: state is %u\n",
- thr, ThrSTATE(thr)));
- switch (ThrSTATE(thr)) {
- case THRf_R_JOINABLE:
- ThrSETSTATE(thr, THRf_ZOMBIE);
- MUTEX_UNLOCK(&thr->mutex);
- DEBUG_L(PerlIO_printf(PerlIO_stderr(),
- "%p: R_JOINABLE thread finished\n", thr));
- break;
- case THRf_R_JOINED:
- ThrSETSTATE(thr, THRf_DEAD);
- MUTEX_UNLOCK(&thr->mutex);
- remove_thread(thr);
- DEBUG_L(PerlIO_printf(PerlIO_stderr(),
- "%p: R_JOINED thread finished\n", thr));
- break;
- case THRf_R_DETACHED:
- ThrSETSTATE(thr, THRf_DEAD);
- MUTEX_UNLOCK(&thr->mutex);
- SvREFCNT_dec(av);
- DEBUG_L(PerlIO_printf(PerlIO_stderr(),
- "%p: DETACHED thread finished\n", thr));
- remove_thread(thr); /* This might trigger main thread to finish */
- break;
- default:
- MUTEX_UNLOCK(&thr->mutex);
- croak("panic: illegal state %u at end of threadstart", ThrSTATE(thr));
- /* NOTREACHED */
- }
- return THREAD_RET_CAST(av); /* Available for anyone to join with */
- /* us unless we're detached, in which */
- /* case noone sees the value anyway. */
-#endif
-#else