[ViewVC] Diff of: cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.171 by root, Sat Sep 29 19:42:10 2007 UTC vs.
Revision 1.198 by root, Sun Oct 7 03:58:37 2007 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
2		2
3	#define PERL_NO_GET_CONTEXT	3	#define PERL_NO_GET_CONTEXT
		4	#define PERL_EXT
4		5
5	#include "EXTERN.h"	6	#include "EXTERN.h"
6	#include "perl.h"	7	#include "perl.h"
7	#include "XSUB.h"	8	#include "XSUB.h"
8		9
75	/* 5.8.7 */	76	/* 5.8.7 */
76	#ifndef SvRV_set	77	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	78	# define SvRV_set(s,v) SvRV(s) = (v)
78	#endif	79	#endif
79		80
		81	/* 5.8.8 */
		82	#ifndef GV_NOTQUAL
		83	# define GV_NOTQUAL 0
		84	#endif
		85	#ifndef newSV
		86	# define newSV(l) NEWSV(0,l)
		87	#endif
		88
80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	89	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
81	# undef CORO_STACKGUARD	90	# undef CORO_STACKGUARD
82	#endif	91	#endif
83		92
84	#ifndef CORO_STACKGUARD	93	#ifndef CORO_STACKGUARD
…		…
98	#define IN_DESTRUCT (PL_main_cv == Nullcv)	107	#define IN_DESTRUCT (PL_main_cv == Nullcv)
99		108
100	#if __GNUC__ >= 3	109	#if __GNUC__ >= 3
101	# define attribute(x) __attribute__(x)	110	# define attribute(x) __attribute__(x)
102	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	111	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
		112	# define expect(expr,value) __builtin_expect ((expr),(value))
103	#else	113	#else
104	# define attribute(x)	114	# define attribute(x)
105	# define BARRIER	115	# define BARRIER
		116	# define expect(expr,value) (expr)
106	#endif	117	#endif
		118
		119	#define expect_false(expr) expect ((expr) != 0, 0)
		120	#define expect_true(expr) expect ((expr) != 0, 1)
107		121
108	#define NOINLINE attribute ((noinline))	122	#define NOINLINE attribute ((noinline))
109		123
110	#include "CoroAPI.h"	124	#include "CoroAPI.h"
111		125
…		…
131	static struct CoroAPI coroapi;	145	static struct CoroAPI coroapi;
132	static AV main_mainstack; / used to differentiate between $main and others */	146	static AV main_mainstack; / used to differentiate between $main and others */
133	static JMPENV *main_top_env;	147	static JMPENV *main_top_env;
134	static HV coro_state_stash, coro_stash;	148	static HV coro_state_stash, coro_stash;
135	static SV coro_mortal; / will be freed after next transfer */	149	static SV coro_mortal; / will be freed after next transfer */
		150
		151	static GV irsgv; / $/ */
		152	static GV stdoutgv; / STDOUT /
136		153
137	/* async_pool helper stuff */	154	/* async_pool helper stuff */
138	static SV *sv_pool_rss;	155	static SV *sv_pool_rss;
139	static SV *sv_pool_size;	156	static SV *sv_pool_size;
140	static AV *av_async_pool;	157	static AV *av_async_pool;
…		…
176	CF_READY = 0x0002, /* coroutine is ready */	193	CF_READY = 0x0002, /* coroutine is ready */
177	CF_NEW = 0x0004, /* has never been switched to */	194	CF_NEW = 0x0004, /* has never been switched to */
178	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	195	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
179	};	196	};
180		197
		198	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		199	typedef struct {
		200	SV *defsv;
		201	AV *defav;
		202	SV *errsv;
		203	SV *irsgv;
		204	#define VAR(name,type) type name;
		205	# include "state.h"
		206	#undef VAR
		207	} perl_slots;
		208
		209	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		210
181	/* this is a structure representing a perl-level coroutine */	211	/* this is a structure representing a perl-level coroutine */
182	struct coro {	212	struct coro {
183	/* the c coroutine allocated to this perl coroutine, if any */	213	/* the c coroutine allocated to this perl coroutine, if any */
184	coro_cctx *cctx;	214	coro_cctx *cctx;
185		215
		216	/* process data */
		217	AV *mainstack;
		218	perl_slots slot; / basically the saved sp */
		219
186	/* data associated with this coroutine (initial args) */	220	/* data associated with this coroutine (initial args) */
187	AV *args;	221	AV *args;
188	int refcnt;	222	int refcnt;
189	int save; /* CORO_SAVE flags */
190	int flags; /* CF_ flags */	223	int flags; /* CF_ flags */
191		224
192	/* optionally saved, might be zero */	225	/* statistics */
193	AV defav; / @_ */	226	int usecount; /* number of transfers to this coro */
194	SV defsv; / $_ */
195	SV errsv; / $@ */
196	GV deffh; / default filehandle */
197	SV irssv; / $/ */
198	SV irssv_sv; / real $/ cache */
199
200	#define VAR(name,type) type name;
201	# include "state.h"
202	#undef VAR
203		227
204	/* coro process data */	228	/* coro process data */
205	int prio;	229	int prio;
		230	SV *throw;
		231
		232	/* async_pool */
		233	SV *saved_deffh;
206		234
207	/* linked list */	235	/* linked list */
208	struct coro next, prev;	236	struct coro next, prev;
209	HV hv; / the perl hash associated with this coro, if any */	237	HV hv; / the perl hash associated with this coro, if any */
210	};	238	};
…		…
308	MAGIC *mg;	336	MAGIC *mg;
309		337
310	if (SvROK (coro))	338	if (SvROK (coro))
311	coro = SvRV (coro);	339	coro = SvRV (coro);
312		340
		341	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		342	croak ("Coro::State object required");
		343
313	stash = SvSTASH (coro);	344	stash = SvSTASH (coro);
314	if (stash != coro_stash && stash != coro_state_stash)	345	if (expect_false (stash != coro_stash && stash != coro_state_stash))
315	{	346	{
316	/* very slow, but rare, check */	347	/* very slow, but rare, check */
317	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	348	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
318	croak ("Coro::State object required");	349	croak ("Coro::State object required");
319	}	350	}
…		…
329	get_padlist (pTHX_ CV *cv)	360	get_padlist (pTHX_ CV *cv)
330	{	361	{
331	MAGIC *mg = CORO_MAGIC (cv);	362	MAGIC *mg = CORO_MAGIC (cv);
332	AV *av;	363	AV *av;
333		364
334	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	365	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
335	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	366	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
336	else	367	else
337	{	368	{
338	#if CORO_PREFER_PERL_FUNCTIONS	369	#if CORO_PREFER_PERL_FUNCTIONS
339	/* this is probably cleaner, but also slower? */	370	/* this is probably cleaner, but also slower? */
…		…
351	put_padlist (pTHX_ CV *cv)	382	put_padlist (pTHX_ CV *cv)
352	{	383	{
353	MAGIC *mg = CORO_MAGIC (cv);	384	MAGIC *mg = CORO_MAGIC (cv);
354	AV *av;	385	AV *av;
355		386
356	if (!mg)	387	if (expect_false (!mg))
357	{	388	{
358	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	389	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
359	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	390	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
360	mg->mg_virtual = &vtbl_coro;	391	mg->mg_virtual = &vtbl_coro;
361	mg->mg_obj = (SV *)newAV ();	392	mg->mg_obj = (SV *)newAV ();
362	}	393	}
363		394
364	av = (AV *)mg->mg_obj;	395	av = (AV *)mg->mg_obj;
365		396
366	if (AvFILLp (av) >= AvMAX (av))	397	if (expect_false (AvFILLp (av) >= AvMAX (av)))
367	av_extend (av, AvMAX (av) + 1);	398	av_extend (av, AvMAX (av) + 1);
368		399
369	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	400	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
370	}	401	}
371		402
372	/ load & save, init *****************************************************/	403	/ load & save, init *****************************************************/
373		404
374	#define SB do {
375	#define SE } while (0)
376
377	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
378
379	static void	405	static void
380	load_perl (pTHX_ Coro__State c)	406	load_perl (pTHX_ Coro__State c)
381	{	407	{
		408	perl_slots *slot = c->slot;
		409	c->slot = 0;
		410
		411	PL_mainstack = c->mainstack;
		412
		413	GvSV (PL_defgv) = slot->defsv;
		414	GvAV (PL_defgv) = slot->defav;
		415	GvSV (PL_errgv) = slot->errsv;
		416	GvSV (irsgv) = slot->irsgv;
		417
382	#define VAR(name,type) PL_ ## name = c->name;	418	#define VAR(name,type) PL_ ## name = slot->name;
383	# include "state.h"	419	# include "state.h"
384	#undef VAR	420	#undef VAR
385
386	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
387	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
388	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
389	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
390
391	if (c->irssv)
392	{
393	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
394	{
395	SvREFCNT_dec (c->irssv);
396	c->irssv = 0;
397	}
398	else
399	{
400	REPLACE_SV (PL_rs, c->irssv);
401	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
402	sv_setsv (c->irssv_sv, PL_rs);
403	}
404	}
405		421
406	{	422	{
407	dSP;	423	dSP;
		424
408	CV *cv;	425	CV *cv;
409		426
410	/* now do the ugly restore mess */	427	/* now do the ugly restore mess */
411	while ((cv = (CV *)POPs))	428	while (expect_true (cv = (CV *)POPs))
412	{	429	{
413	put_padlist (aTHX_ cv); /* mark this padlist as available */	430	put_padlist (aTHX_ cv); /* mark this padlist as available */
414	CvDEPTH (cv) = PTR2IV (POPs);	431	CvDEPTH (cv) = PTR2IV (POPs);
415	CvPADLIST (cv) = (AV *)POPs;	432	CvPADLIST (cv) = (AV *)POPs;
416	}	433	}
…		…
435		452
436	XPUSHs (Nullsv);	453	XPUSHs (Nullsv);
437	/* this loop was inspired by pp_caller */	454	/* this loop was inspired by pp_caller */
438	for (;;)	455	for (;;)
439	{	456	{
440	while (cxix >= 0)	457	while (expect_true (cxix >= 0))
441	{	458	{
442	PERL_CONTEXT *cx = &ccstk[cxix--];	459	PERL_CONTEXT *cx = &ccstk[cxix--];
443		460
444	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	461	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
445	{	462	{
446	CV *cv = cx->blk_sub.cv;	463	CV *cv = cx->blk_sub.cv;
447		464
448	if (CvDEPTH (cv))	465	if (expect_true (CvDEPTH (cv)))
449	{	466	{
450	EXTEND (SP, 3);	467	EXTEND (SP, 3);
451	PUSHs ((SV *)CvPADLIST (cv));	468	PUSHs ((SV *)CvPADLIST (cv));
452	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	469	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
453	PUSHs ((SV *)cv);	470	PUSHs ((SV *)cv);
…		…
456	get_padlist (aTHX_ cv);	473	get_padlist (aTHX_ cv);
457	}	474	}
458	}	475	}
459	}	476	}
460		477
461	if (top_si->si_type == PERLSI_MAIN)	478	if (expect_true (top_si->si_type == PERLSI_MAIN))
462	break;	479	break;
463		480
464	top_si = top_si->si_prev;	481	top_si = top_si->si_prev;
465	ccstk = top_si->si_cxstack;	482	ccstk = top_si->si_cxstack;
466	cxix = top_si->si_cxix;	483	cxix = top_si->si_cxix;
467	}	484	}
468		485
469	PUTBACK;	486	PUTBACK;
470	}	487	}
471		488
472	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	489	/* allocate some space on the context stack for our purposes */
473	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	490	{
474	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	491	/* we manually unroll here, as usually 2 slots is enough */
475	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	492	int i;
476	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	493	if (SLOT_COUNT >= 1) CXINC;
		494	if (SLOT_COUNT >= 2) CXINC;
		495	if (SLOT_COUNT >= 3) CXINC;
		496	for (i = 3; i < SLOT_COUNT; ++i)
		497	CXINC;
477		498
		499	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		500	}
		501
		502	c->mainstack = PL_mainstack;
		503
		504	{
		505	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		506
		507	slot->defav = GvAV (PL_defgv);
		508	slot->defsv = DEFSV;
		509	slot->errsv = ERRSV;
		510	slot->irsgv = GvSV (irsgv);
		511
478	#define VAR(name,type)c->name = PL_ ## name;	512	#define VAR(name,type) slot->name = PL_ ## name;
479	# include "state.h"	513	# include "state.h"
480	#undef VAR	514	#undef VAR
		515	}
481	}	516	}
482		517
483	/*	518	/*
484	* allocate various perl stacks. This is an exact copy	519	* allocate various perl stacks. This is an exact copy
485	* of perl.c:init_stacks, except that it uses less memory	520	* of perl.c:init_stacks, except that it uses less memory
…		…
490	# define coro_init_stacks init_stacks	525	# define coro_init_stacks init_stacks
491	#else	526	#else
492	static void	527	static void
493	coro_init_stacks (pTHX)	528	coro_init_stacks (pTHX)
494	{	529	{
495	PL_curstackinfo = new_stackinfo(64, 6);	530	PL_curstackinfo = new_stackinfo(32, 8);
496	PL_curstackinfo->si_type = PERLSI_MAIN;	531	PL_curstackinfo->si_type = PERLSI_MAIN;
497	PL_curstack = PL_curstackinfo->si_stack;	532	PL_curstack = PL_curstackinfo->si_stack;
498	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	533	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
499		534
500	PL_stack_base = AvARRAY(PL_curstack);	535	PL_stack_base = AvARRAY(PL_curstack);
501	PL_stack_sp = PL_stack_base;	536	PL_stack_sp = PL_stack_base;
502	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	537	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
503		538
504	New(50,PL_tmps_stack,64,SV*);	539	New(50,PL_tmps_stack,32,SV*);
505	PL_tmps_floor = -1;	540	PL_tmps_floor = -1;
506	PL_tmps_ix = -1;	541	PL_tmps_ix = -1;
507	PL_tmps_max = 64;	542	PL_tmps_max = 32;
508		543
509	New(54,PL_markstack,16,I32);	544	New(54,PL_markstack,16,I32);
510	PL_markstack_ptr = PL_markstack;	545	PL_markstack_ptr = PL_markstack;
511	PL_markstack_max = PL_markstack + 16;	546	PL_markstack_max = PL_markstack + 16;
512		547
513	#ifdef SET_MARK_OFFSET	548	#ifdef SET_MARK_OFFSET
514	SET_MARK_OFFSET;	549	SET_MARK_OFFSET;
515	#endif	550	#endif
516		551
517	New(54,PL_scopestack,16,I32);	552	New(54,PL_scopestack,8,I32);
518	PL_scopestack_ix = 0;	553	PL_scopestack_ix = 0;
519	PL_scopestack_max = 16;	554	PL_scopestack_max = 8;
520		555
521	New(54,PL_savestack,64,ANY);	556	New(54,PL_savestack,24,ANY);
522	PL_savestack_ix = 0;	557	PL_savestack_ix = 0;
523	PL_savestack_max = 64;	558	PL_savestack_max = 24;
524		559
525	#if !PERL_VERSION_ATLEAST (5,9,0)	560	#if !PERL_VERSION_ATLEAST (5,9,0)
526	New(54,PL_retstack,4,OP*);	561	New(54,PL_retstack,4,OP*);
527	PL_retstack_ix = 0;	562	PL_retstack_ix = 0;
528	PL_retstack_max = 4;	563	PL_retstack_max = 4;
…		…
534	* destroy the stacks, the callchain etc...	569	* destroy the stacks, the callchain etc...
535	*/	570	*/
536	static void	571	static void
537	coro_destroy_stacks (pTHX)	572	coro_destroy_stacks (pTHX)
538	{	573	{
539	if (!IN_DESTRUCT)
540	{
541	/* restore all saved variables and stuff */
542	LEAVE_SCOPE (0);
543	assert (PL_tmps_floor == -1);
544
545	/* free all temporaries */
546	FREETMPS;
547	assert (PL_tmps_ix == -1);
548
549	/* unwind all extra stacks */
550	POPSTACK_TO (PL_mainstack);
551
552	/* unwind main stack */
553	dounwind (-1);
554	}
555
556	while (PL_curstackinfo->si_next)	574	while (PL_curstackinfo->si_next)
557	PL_curstackinfo = PL_curstackinfo->si_next;	575	PL_curstackinfo = PL_curstackinfo->si_next;
558		576
559	while (PL_curstackinfo)	577	while (PL_curstackinfo)
560	{	578	{
…		…
578	}	596	}
579		597
580	static size_t	598	static size_t
581	coro_rss (pTHX_ struct coro *coro)	599	coro_rss (pTHX_ struct coro *coro)
582	{	600	{
583	size_t rss = sizeof (coro);	601	size_t rss = sizeof (*coro);
584		602
585	if (coro->mainstack)	603	if (coro->mainstack)
586	{	604	{
		605	perl_slots tmp_slot;
		606	perl_slots *slot;
		607
587	if (coro->flags & CF_RUNNING)	608	if (coro->flags & CF_RUNNING)
588	{	609	{
		610	slot = &tmp_slot;
		611
589	#define VAR(name,type)coro->name = PL_ ## name;	612	#define VAR(name,type) slot->name = PL_ ## name;
590	# include "state.h"	613	# include "state.h"
591	#undef VAR	614	#undef VAR
592	}	615	}
		616	else
		617	slot = coro->slot;
593		618
594	rss += sizeof (coro->curstackinfo);	619	rss += sizeof (slot->curstackinfo);
595	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
596	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	620	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
597	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	621	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
598	rss += coro->tmps_max * sizeof (SV *);	622	rss += slot->tmps_max * sizeof (SV *);
599	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	623	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
600	rss += coro->scopestack_max * sizeof (I32);	624	rss += slot->scopestack_max * sizeof (I32);
601	rss += coro->savestack_max * sizeof (ANY);	625	rss += slot->savestack_max * sizeof (ANY);
602		626
603	#if !PERL_VERSION_ATLEAST (5,9,0)	627	#if !PERL_VERSION_ATLEAST (5,9,0)
604	rss += coro->retstack_max * sizeof (OP *);	628	rss += slot->retstack_max * sizeof (OP *);
605	#endif	629	#endif
606	}	630	}
607		631
608	return rss;	632	return rss;
609	}	633	}
610		634
611	/ coroutine stack handling **********************************************/	635	/ coroutine stack handling **********************************************/
612		636
613	static void	637	static void
614	setup_coro (pTHX_ struct coro *coro)	638	coro_setup (pTHX_ struct coro *coro)
615	{	639	{
616	/*	640	/*
617	* emulate part of the perl startup here.	641	* emulate part of the perl startup here.
618	*/	642	*/
619	coro_init_stacks (aTHX);	643	coro_init_stacks (aTHX);
…		…
621	PL_runops = RUNOPS_DEFAULT;	645	PL_runops = RUNOPS_DEFAULT;
622	PL_curcop = &PL_compiling;	646	PL_curcop = &PL_compiling;
623	PL_in_eval = EVAL_NULL;	647	PL_in_eval = EVAL_NULL;
624	PL_comppad = 0;	648	PL_comppad = 0;
625	PL_curpm = 0;	649	PL_curpm = 0;
		650	PL_curpad = 0;
626	PL_localizing = 0;	651	PL_localizing = 0;
627	PL_dirty = 0;	652	PL_dirty = 0;
628	PL_restartop = 0;	653	PL_restartop = 0;
		654	PL_diehook = 0;
		655	PL_warnhook = 0;
		656
		657	GvSV (PL_defgv) = newSV (0);
		658	GvAV (PL_defgv) = coro->args; coro->args = 0;
		659	GvSV (PL_errgv) = newSV (0);
		660	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		661	PL_rs = newSVsv (GvSV (irsgv));
		662	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
629		663
630	{	664	{
631	dSP;	665	dSP;
632	LOGOP myop;	666	LOGOP myop;
633		667
634	SvREFCNT_dec (GvAV (PL_defgv));
635	GvAV (PL_defgv) = coro->args; coro->args = 0;
636
637	Zero (&myop, 1, LOGOP);	668	Zero (&myop, 1, LOGOP);
638	myop.op_next = Nullop;	669	myop.op_next = Nullop;
639	myop.op_flags = OPf_WANT_VOID;	670	myop.op_flags = OPf_WANT_VOID;
640		671
641	PUSHMARK (SP);	672	PUSHMARK (SP);
642	XPUSHs (av_shift (GvAV (PL_defgv)));	673	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
643	PUTBACK;	674	PUTBACK;
644	PL_op = (OP *)&myop;	675	PL_op = (OP *)&myop;
645	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	676	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
646	SPAGAIN;	677	SPAGAIN;
647	}	678	}
648		679
649	ENTER; /* necessary e.g. for dounwind */	680	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */
		681	}
		682
		683	static void
		684	coro_destroy (pTHX_ struct coro *coro)
		685	{
		686	if (!IN_DESTRUCT)
		687	{
		688	/* restore all saved variables and stuff */
		689	LEAVE_SCOPE (0);
		690	assert (PL_tmps_floor == -1);
		691
		692	/* free all temporaries */
		693	FREETMPS;
		694	assert (PL_tmps_ix == -1);
		695
		696	/* unwind all extra stacks */
		697	POPSTACK_TO (PL_mainstack);
		698
		699	/* unwind main stack */
		700	dounwind (-1);
		701	}
		702
		703	SvREFCNT_dec (GvSV (PL_defgv));
		704	SvREFCNT_dec (GvAV (PL_defgv));
		705	SvREFCNT_dec (GvSV (PL_errgv));
		706	SvREFCNT_dec (PL_defoutgv);
		707	SvREFCNT_dec (PL_rs);
		708	SvREFCNT_dec (GvSV (irsgv));
		709
		710	SvREFCNT_dec (PL_diehook);
		711	SvREFCNT_dec (PL_warnhook);
		712
		713	SvREFCNT_dec (coro->saved_deffh);
		714	SvREFCNT_dec (coro->throw);
		715
		716	coro_destroy_stacks (aTHX);
650	}	717	}
651		718
652	static void	719	static void
653	free_coro_mortal (pTHX)	720	free_coro_mortal (pTHX)
654	{	721	{
655	if (coro_mortal)	722	if (expect_true (coro_mortal))
656	{	723	{
657	SvREFCNT_dec (coro_mortal);	724	SvREFCNT_dec (coro_mortal);
658	coro_mortal = 0;	725	coro_mortal = 0;
659	}	726	}
660	}	727	}
…		…
669		736
670	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	737	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
671	{	738	{
672	PERL_ASYNC_CHECK ();	739	PERL_ASYNC_CHECK ();
673		740
674	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	741	if (cctx->flags & CC_TRACE_ALL)
675	{	742	{
676	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	743	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
677	SV bot, top;
678	AV av = newAV (); / return values */
679	SV **cb;
680	runops_proc_t old_runops = PL_runops;
681	dSP;
682	ENTER;
683	SAVETMPS;
684	EXTEND (SP, 3);
685	PL_runops = RUNOPS_DEFAULT;
686
687	GV *gv = CvGV (cx->blk_sub.cv);
688	SV *fullname = sv_2mortal (newSV (0));
689	if (isGV (gv))
690	gv_efullname3 (fullname, gv, 0);
691
692	bot = PL_stack_base + cx->blk_oldsp + 1;
693	top = cx->blk_gimme == G_ARRAY ? SP + 1
694	: cx->blk_gimme == G_SCALAR ? bot + 1
695	: bot;
696
697	while (bot < top)
698	av_push (av, SvREFCNT_inc (*bot++));
699
700	PUSHMARK (SP);
701	PUSHs (&PL_sv_no);
702	PUSHs (fullname);
703	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
704	PUTBACK;
705	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
706	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
707	SPAGAIN;
708
709	FREETMPS;
710	LEAVE;
711	PL_runops = old_runops;
712	}
713
714	if (oldcop != PL_curcop)
715	{
716	oldcop = PL_curcop;
717
718	if (PL_curcop != &PL_compiling)
719	{	744	{
		745	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		746	SV bot, top;
		747	AV av = newAV (); / return values */
720	SV **cb;	748	SV **cb;
721	runops_proc_t old_runops = PL_runops;
722	dSP;	749	dSP;
		750
		751	GV *gv = CvGV (cx->blk_sub.cv);
		752	SV *fullname = sv_2mortal (newSV (0));
		753	if (isGV (gv))
		754	gv_efullname3 (fullname, gv, 0);
		755
		756	bot = PL_stack_base + cx->blk_oldsp + 1;
		757	top = cx->blk_gimme == G_ARRAY ? SP + 1
		758	: cx->blk_gimme == G_SCALAR ? bot + 1
		759	: bot;
		760
		761	av_extend (av, top - bot);
		762	while (bot < top)
		763	av_push (av, SvREFCNT_inc (*bot++));
		764
		765	PL_runops = RUNOPS_DEFAULT;
723	ENTER;	766	ENTER;
724	SAVETMPS;	767	SAVETMPS;
725	EXTEND (SP, 3);	768	EXTEND (SP, 3);
726	PL_runops = RUNOPS_DEFAULT;	769	PUSHMARK (SP);
		770	PUSHs (&PL_sv_no);
		771	PUSHs (fullname);
		772	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		773	PUTBACK;
		774	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		775	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		776	SPAGAIN;
		777	FREETMPS;
		778	LEAVE;
		779	PL_runops = runops_trace;
		780	}
727		781
728	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	782	if (oldcop != PL_curcop)
		783	{
		784	oldcop = PL_curcop;
		785
		786	if (PL_curcop != &PL_compiling)
729	{	787	{
730	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	788	SV **cb;
731		789
732	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	790	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
733	{	791	{
		792	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		793
		794	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		795	{
		796	runops_proc_t old_runops = PL_runops;
		797	dSP;
734	GV *gv = CvGV (cx->blk_sub.cv);	798	GV *gv = CvGV (cx->blk_sub.cv);
735	SV *fullname = sv_2mortal (newSV (0));	799	SV *fullname = sv_2mortal (newSV (0));
		800
736	if (isGV (gv))	801	if (isGV (gv))
737	gv_efullname3 (fullname, gv, 0);	802	gv_efullname3 (fullname, gv, 0);
738		803
		804	PL_runops = RUNOPS_DEFAULT;
		805	ENTER;
		806	SAVETMPS;
		807	EXTEND (SP, 3);
		808	PUSHMARK (SP);
		809	PUSHs (&PL_sv_yes);
		810	PUSHs (fullname);
		811	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		812	PUTBACK;
		813	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		814	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		815	SPAGAIN;
		816	FREETMPS;
		817	LEAVE;
		818	PL_runops = runops_trace;
		819	}
		820
		821	oldcxix = cxstack_ix;
		822	}
		823
		824	if (cctx->flags & CC_TRACE_LINE)
		825	{
		826	dSP;
		827
		828	PL_runops = RUNOPS_DEFAULT;
		829	ENTER;
		830	SAVETMPS;
		831	EXTEND (SP, 3);
		832	PL_runops = RUNOPS_DEFAULT;
739	PUSHMARK (SP);	833	PUSHMARK (SP);
740	PUSHs (&PL_sv_yes);	834	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
741	PUSHs (fullname);	835	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
742	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
743	PUTBACK;	836	PUTBACK;
744	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	837	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
745	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	838	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
746	SPAGAIN;	839	SPAGAIN;
		840	FREETMPS;
		841	LEAVE;
		842	PL_runops = runops_trace;
747	}	843	}
748
749	oldcxix = cxstack_ix;
750	}	844	}
751
752	if (cctx->flags & CC_TRACE_LINE)
753	{
754	PUSHMARK (SP);
755	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
756	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
757	PUTBACK;
758	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
759	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
760	SPAGAIN;
761	}
762
763	FREETMPS;
764	LEAVE;
765	PL_runops = old_runops;
766	}	845	}
767	}	846	}
768	}	847	}
769		848
770	TAINT_NOT;	849	TAINT_NOT;
…		…
899	Safefree (cctx->sptr);	978	Safefree (cctx->sptr);
900		979
901	Safefree (cctx);	980	Safefree (cctx);
902	}	981	}
903		982
		983	/* wether this cctx should be destructed */
		984	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		985
904	static coro_cctx *	986	static coro_cctx *
905	cctx_get (pTHX)	987	cctx_get (pTHX)
906	{	988	{
907	while (cctx_first)	989	while (expect_true (cctx_first))
908	{	990	{
909	coro_cctx *cctx = cctx_first;	991	coro_cctx *cctx = cctx_first;
910	cctx_first = cctx->next;	992	cctx_first = cctx->next;
911	--cctx_idle;	993	--cctx_idle;
912		994
913	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))	995	if (expect_true (!CCTX_EXPIRED (cctx)))
914	return cctx;	996	return cctx;
915		997
916	cctx_destroy (cctx);	998	cctx_destroy (cctx);
917	}	999	}
918		1000
…		…
921		1003
922	static void	1004	static void
923	cctx_put (coro_cctx *cctx)	1005	cctx_put (coro_cctx *cctx)
924	{	1006	{
925	/* free another cctx if overlimit */	1007	/* free another cctx if overlimit */
926	if (cctx_idle >= MAX_IDLE_CCTX)	1008	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
927	{	1009	{
928	coro_cctx *first = cctx_first;	1010	coro_cctx *first = cctx_first;
929	cctx_first = first->next;	1011	cctx_first = first->next;
930	--cctx_idle;	1012	--cctx_idle;
931		1013
…		…
937	cctx_first = cctx;	1019	cctx_first = cctx;
938	}	1020	}
939		1021
940	/ coroutine switching ***************************************************/	1022	/ coroutine switching ***************************************************/
941		1023
942	static void NOINLINE	1024	static void
943	transfer_check (pTHX_ struct coro prev, struct coro next)	1025	transfer_check (pTHX_ struct coro prev, struct coro next)
944	{	1026	{
945	if (prev != next)	1027	if (expect_true (prev != next))
946	{	1028	{
947	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))	1029	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
948	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");	1030	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
949		1031
950	if (next->flags & CF_RUNNING)	1032	if (expect_false (next->flags & CF_RUNNING))
951	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1033	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
952		1034
953	if (next->flags & CF_DESTROYED)	1035	if (expect_false (next->flags & CF_DESTROYED))
954	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1036	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
955		1037
		1038	if (
		1039	#if PERL_VERSION_ATLEAST (5,9,0)
		1040	expect_false (PL_parser)
		1041	#else
956	if (PL_lex_state != LEX_NOTPARSING)	1042	expect_false (PL_lex_state != LEX_NOTPARSING)
		1043	#endif
		1044	)
957	croak ("Coro::State::transfer called while parsing, but this is not supported");	1045	croak ("Coro::State::transfer called while parsing, but this is not supported");
958	}	1046	}
959	}	1047	}
960		1048
961	/* always use the TRANSFER macro */	1049	/* always use the TRANSFER macro */
…		…
963	transfer (pTHX_ struct coro prev, struct coro next)	1051	transfer (pTHX_ struct coro prev, struct coro next)
964	{	1052	{
965	dSTACKLEVEL;	1053	dSTACKLEVEL;
966		1054
967	/* sometimes transfer is only called to set idle_sp */	1055	/* sometimes transfer is only called to set idle_sp */
968	if (!next)	1056	if (expect_false (!next))
969	{	1057	{
970	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1058	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
971	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1059	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
972	}	1060	}
973	else if (prev != next)	1061	else if (expect_true (prev != next))
974	{	1062	{
975	coro_cctx *prev__cctx;	1063	coro_cctx *prev__cctx;
976		1064
977	if (prev->flags & CF_NEW)	1065	if (expect_false (prev->flags & CF_NEW))
978	{	1066	{
979	/* create a new empty context */	1067	/* create a new empty context */
980	Newz (0, prev->cctx, 1, coro_cctx);	1068	Newz (0, prev->cctx, 1, coro_cctx);
981	prev->flags &= ~CF_NEW;	1069	prev->flags &= ~CF_NEW;
982	prev->flags \|= CF_RUNNING;	1070	prev->flags \|= CF_RUNNING;
…		…
985	prev->flags &= ~CF_RUNNING;	1073	prev->flags &= ~CF_RUNNING;
986	next->flags \|= CF_RUNNING;	1074	next->flags \|= CF_RUNNING;
987		1075
988	LOCK;	1076	LOCK;
989		1077
990	if (next->flags & CF_NEW)	1078	if (expect_false (next->flags & CF_NEW))
991	{	1079	{
992	/* need to start coroutine */	1080	/* need to start coroutine */
993	next->flags &= ~CF_NEW;	1081	next->flags &= ~CF_NEW;
994	/* first get rid of the old state */	1082	/* first get rid of the old state */
995	save_perl (aTHX_ prev);	1083	save_perl (aTHX_ prev);
996	/* setup coroutine call */	1084	/* setup coroutine call */
997	setup_coro (aTHX_ next);	1085	coro_setup (aTHX_ next);
998	}	1086	}
999	else	1087	else
1000	{	1088	{
1001	/* coroutine already started */	1089	/* coroutine already started */
1002	save_perl (aTHX_ prev);	1090	save_perl (aTHX_ prev);
…		…
1004	}	1092	}
1005		1093
1006	prev__cctx = prev->cctx;	1094	prev__cctx = prev->cctx;
1007		1095
1008	/* possibly "free" the cctx */	1096	/* possibly "free" the cctx */
1009	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))	1097	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
1010	{	1098	{
1011	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1099	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1012	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1100	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1013		1101
1014	prev->cctx = 0;	1102	prev->cctx = 0;
1015		1103
		1104	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1105	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1106	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1107	next->cctx = cctx_get (aTHX);
		1108
1016	cctx_put (prev__cctx);	1109	cctx_put (prev__cctx);
1017	}	1110	}
1018		1111
		1112	++next->usecount;
		1113
1019	if (!next->cctx)	1114	if (expect_true (!next->cctx))
1020	next->cctx = cctx_get (aTHX);	1115	next->cctx = cctx_get (aTHX);
1021		1116
1022	if (prev__cctx != next->cctx)	1117	if (expect_false (prev__cctx != next->cctx))
1023	{	1118	{
1024	prev__cctx->top_env = PL_top_env;	1119	prev__cctx->top_env = PL_top_env;
1025	PL_top_env = next->cctx->top_env;	1120	PL_top_env = next->cctx->top_env;
1026	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1121	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1027	}	1122	}
1028		1123
1029	free_coro_mortal (aTHX);	1124	free_coro_mortal (aTHX);
1030	UNLOCK;	1125	UNLOCK;
		1126
		1127	if (expect_false (prev->throw \|\| next->throw))
		1128	{
		1129	struct coro *coro = SvSTATE (coro_current);
		1130
		1131	if (coro->throw)
		1132	{
		1133	SV *exception = coro->throw;
		1134	coro->throw = 0;
		1135	sv_setsv (ERRSV, exception);
		1136	croak (0);
		1137	}
		1138	}
1031	}	1139	}
1032	}	1140	}
1033		1141
1034	struct transfer_args	1142	struct transfer_args
1035	{	1143	{
…		…
1062		1170
1063	if (coro->mainstack && coro->mainstack != main_mainstack)	1171	if (coro->mainstack && coro->mainstack != main_mainstack)
1064	{	1172	{
1065	struct coro temp;	1173	struct coro temp;
1066		1174
1067	assert (!(coro->flags & CF_RUNNING));
1068
1069	Zero (&temp, 1, struct coro);
1070	temp.save = CORO_SAVE_ALL;
1071
1072	if (coro->flags & CF_RUNNING)	1175	if (coro->flags & CF_RUNNING)
1073	croak ("FATAL: tried to destroy currently running coroutine");	1176	croak ("FATAL: tried to destroy currently running coroutine");
1074		1177
1075	save_perl (aTHX_ &temp);	1178	save_perl (aTHX_ &temp);
1076	load_perl (aTHX_ coro);	1179	load_perl (aTHX_ coro);
1077		1180
1078	coro_destroy_stacks (aTHX);	1181	coro_destroy (aTHX_ coro);
1079		1182
1080	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1183	load_perl (aTHX_ &temp);
1081		1184
1082	coro->mainstack = 0;	1185	coro->slot = 0;
1083	}	1186	}
1084		1187
1085	cctx_destroy (coro->cctx);	1188	cctx_destroy (coro->cctx);
1086	SvREFCNT_dec (coro->args);	1189	SvREFCNT_dec (coro->args);
1087		1190
…		…
1146		1249
1147	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1250	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1148	TRANSFER (ta);	1251	TRANSFER (ta);
1149	}	1252	}
1150		1253
1151	static int
1152	api_save (SV *coro_sv, int new_save)
1153	{
1154	dTHX;
1155	struct coro *coro = SvSTATE (coro_sv);
1156	int old_save = coro->save;
1157
1158	if (new_save >= 0)
1159	coro->save = new_save;
1160
1161	return old_save;
1162	}
1163
1164	/ Coro ******************************************************************/	1254	/ Coro ******************************************************************/
1165		1255
1166	static void	1256	static void
1167	coro_enq (pTHX_ SV *coro_sv)	1257	coro_enq (pTHX_ SV *coro_sv)
1168	{	1258	{
…		…
1225	{	1315	{
1226	LOCK;	1316	LOCK;
1227	next_sv = coro_deq (aTHX_ PRIO_MIN);	1317	next_sv = coro_deq (aTHX_ PRIO_MIN);
1228		1318
1229	/* nothing to schedule: call the idle handler */	1319	/* nothing to schedule: call the idle handler */
1230	if (!next_sv)	1320	if (expect_false (!next_sv))
1231	{	1321	{
1232	dSP;	1322	dSP;
1233	UNLOCK;	1323	UNLOCK;
1234		1324
1235	ENTER;	1325	ENTER;
…		…
1245	}	1335	}
1246		1336
1247	ta->next = SvSTATE (next_sv);	1337	ta->next = SvSTATE (next_sv);
1248		1338
1249	/* cannot transfer to destroyed coros, skip and look for next */	1339	/* cannot transfer to destroyed coros, skip and look for next */
1250	if (ta->next->flags & CF_DESTROYED)	1340	if (expect_false (ta->next->flags & CF_DESTROYED))
1251	{	1341	{
1252	UNLOCK;	1342	UNLOCK;
1253	SvREFCNT_dec (next_sv);	1343	SvREFCNT_dec (next_sv);
1254	/* coro_nready is already taken care of by destroy */	1344	/* coro_nready is already taken care of by destroy */
1255	continue;	1345	continue;
…		…
1311	dTHX;	1401	dTHX;
1312	struct transfer_args ta;	1402	struct transfer_args ta;
1313		1403
1314	prepare_cede (aTHX_ &ta);	1404	prepare_cede (aTHX_ &ta);
1315		1405
1316	if (ta.prev != ta.next)	1406	if (expect_true (ta.prev != ta.next))
1317	{	1407	{
1318	TRANSFER (ta);	1408	TRANSFER (ta);
1319	return 1;	1409	return 1;
1320	}	1410	}
1321	else	1411	else
…		…
1335	}	1425	}
1336	else	1426	else
1337	return 0;	1427	return 0;
1338	}	1428	}
1339		1429
		1430	static void
		1431	api_trace (SV *coro_sv, int flags)
		1432	{
		1433	dTHX;
		1434	struct coro *coro = SvSTATE (coro_sv);
		1435
		1436	if (flags & CC_TRACE)
		1437	{
		1438	if (!coro->cctx)
		1439	coro->cctx = cctx_new ();
		1440	else if (!(coro->cctx->flags & CC_TRACE))
		1441	croak ("cannot enable tracing on coroutine with custom stack");
		1442
		1443	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1444	}
		1445	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1446	{
		1447	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1448
		1449	if (coro->flags & CF_RUNNING)
		1450	PL_runops = RUNOPS_DEFAULT;
		1451	else
		1452	coro->slot->runops = RUNOPS_DEFAULT;
		1453	}
		1454	}
		1455
1340	MODULE = Coro::State PACKAGE = Coro::State	1456	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1341		1457
1342	PROTOTYPES: DISABLE	1458	PROTOTYPES: DISABLE
1343		1459
1344	BOOT:	1460	BOOT:
1345	{	1461	{
1346	#ifdef USE_ITHREADS	1462	#ifdef USE_ITHREADS
1347	MUTEX_INIT (&coro_mutex);	1463	MUTEX_INIT (&coro_mutex);
1348	#endif	1464	#endif
1349	BOOT_PAGESIZE;	1465	BOOT_PAGESIZE;
		1466
		1467	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1468	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1350		1469
1351	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1470	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1352		1471
1353	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1472	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1354	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1473	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1355	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));	1474	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1356	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));	1475	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1357		1476
1358	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1359	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1360	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1361	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1362	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1363	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1364	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1365
1366	main_mainstack = PL_mainstack;	1477	main_mainstack = PL_mainstack;
1367	main_top_env = PL_top_env;	1478	main_top_env = PL_top_env;
1368		1479
1369	while (main_top_env->je_prev)	1480	while (main_top_env->je_prev)
1370	main_top_env = main_top_env->je_prev;	1481	main_top_env = main_top_env->je_prev;
…		…
1382	struct coro *coro;	1493	struct coro *coro;
1383	HV *hv;	1494	HV *hv;
1384	int i;	1495	int i;
1385		1496
1386	Newz (0, coro, 1, struct coro);	1497	Newz (0, coro, 1, struct coro);
1387	coro->args = newAV ();	1498	coro->args = newAV ();
1388	coro->save = CORO_SAVE_DEF;
1389	coro->flags = CF_NEW;	1499	coro->flags = CF_NEW;
1390		1500
1391	if (coro_first) coro_first->prev = coro;	1501	if (coro_first) coro_first->prev = coro;
1392	coro->next = coro_first;	1502	coro->next = coro_first;
1393	coro_first = coro;	1503	coro_first = coro;
1394		1504
1395	coro->hv = hv = newHV ();	1505	coro->hv = hv = newHV ();
1396	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1506	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1397	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1507	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1398		1508
		1509	av_extend (coro->args, items - 1);
1399	for (i = 1; i < items; i++)	1510	for (i = 1; i < items; i++)
1400	av_push (coro->args, newSVsv (ST (i)));	1511	av_push (coro->args, newSVsv (ST (i)));
1401	}	1512	}
1402	OUTPUT:	1513	OUTPUT:
1403	RETVAL	1514	RETVAL
1404		1515
1405	int	1516	# these not obviously related functions are all rolled into the same xs
1406	save (SV *coro, int new_save = -1)	1517	# function to increase chances that they all will call transfer with the same
1407	CODE:	1518	# stack offset
1408	RETVAL = api_save (coro, new_save);
1409	OUTPUT:
1410	RETVAL
1411
1412	int
1413	save_also (SV *coro_sv, int save_also)
1414	CODE:
1415	{
1416	struct coro *coro = SvSTATE (coro_sv);
1417	RETVAL = coro->save;
1418	coro->save \|= save_also;
1419	}
1420	OUTPUT:
1421	RETVAL
1422
1423	void	1519	void
1424	_set_stacklevel (...)	1520	_set_stacklevel (...)
1425	ALIAS:	1521	ALIAS:
1426	Coro::State::transfer = 1	1522	Coro::State::transfer = 1
1427	Coro::schedule = 2	1523	Coro::schedule = 2
…		…
1461	}	1557	}
1462		1558
1463	BARRIER;	1559	BARRIER;
1464	TRANSFER (ta);	1560	TRANSFER (ta);
1465		1561
1466	if (GIMME_V != G_VOID && ta.next != ta.prev)	1562	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1467	XSRETURN_YES;	1563	XSRETURN_YES;
1468	}	1564	}
1469		1565
1470	bool	1566	bool
1471	_destroy (SV *coro_sv)	1567	_destroy (SV *coro_sv)
…		…
1521	CODE:	1617	CODE:
1522	{	1618	{
1523	if (coro->mainstack)	1619	if (coro->mainstack)
1524	{	1620	{
1525	struct coro temp;	1621	struct coro temp;
1526	Zero (&temp, 1, struct coro);
1527	temp.save = CORO_SAVE_ALL;
1528		1622
1529	if (!(coro->flags & CF_RUNNING))	1623	if (!(coro->flags & CF_RUNNING))
1530	{	1624	{
1531	save_perl (aTHX_ &temp);	1625	save_perl (aTHX_ &temp);
1532	load_perl (aTHX_ coro);	1626	load_perl (aTHX_ coro);
…		…
1536	dSP;	1630	dSP;
1537	ENTER;	1631	ENTER;
1538	SAVETMPS;	1632	SAVETMPS;
1539	PUSHMARK (SP);	1633	PUSHMARK (SP);
1540	PUTBACK;	1634	PUTBACK;
		1635
1541	if (ix)	1636	if (ix)
1542	eval_sv (coderef, 0);	1637	eval_sv (coderef, 0);
1543	else	1638	else
1544	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1639	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1640
1545	SPAGAIN;	1641	SPAGAIN;
1546	FREETMPS;	1642	FREETMPS;
1547	LEAVE;	1643	LEAVE;
1548	PUTBACK;	1644	PUTBACK;
1549	}	1645	}
…		…
1553	save_perl (aTHX_ coro);	1649	save_perl (aTHX_ coro);
1554	load_perl (aTHX_ &temp);	1650	load_perl (aTHX_ &temp);
1555	}	1651	}
1556	}	1652	}
1557	}	1653	}
1558		1654
1559	SV *	1655	SV *
1560	is_ready (Coro::State coro)	1656	is_ready (Coro::State coro)
1561	PROTOTYPE: $	1657	PROTOTYPE: $
1562	ALIAS:	1658	ALIAS:
1563	is_ready = CF_READY	1659	is_ready = CF_READY
…		…
1568	RETVAL = boolSV (coro->flags & ix);	1664	RETVAL = boolSV (coro->flags & ix);
1569	OUTPUT:	1665	OUTPUT:
1570	RETVAL	1666	RETVAL
1571		1667
1572	void	1668	void
1573	trace (Coro::State coro, int flags = CC_TRACE \| CC_TRACE_SUB)	1669	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1574	CODE:
1575	if (flags & CC_TRACE)
1576	{
1577	if (!coro->cctx)
1578	coro->cctx = cctx_new ();
1579	else if (!(coro->cctx->flags & CC_TRACE))
1580	croak ("cannot enable tracing on coroutine with custom stack");
1581
1582	coro->cctx->flags \|= flags & (CC_TRACE \| CC_TRACE_ALL);
1583	}
1584	else
1585	if (coro->cctx && coro->cctx->flags & CC_TRACE)
1586	{
1587	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1588	coro->cctx->flags \|= CC_NOREUSE;
1589
1590	if (coro->flags & CF_RUNNING)
1591	PL_runops = RUNOPS_DEFAULT;
1592	else
1593	coro->runops = RUNOPS_DEFAULT;
1594	}
1595		1670
1596	SV *	1671	SV *
1597	has_stack (Coro::State coro)	1672	has_stack (Coro::State coro)
1598	PROTOTYPE: $	1673	PROTOTYPE: $
1599	CODE:	1674	CODE:
…		…
1610	RETVAL	1685	RETVAL
1611		1686
1612	IV	1687	IV
1613	rss (Coro::State coro)	1688	rss (Coro::State coro)
1614	PROTOTYPE: $	1689	PROTOTYPE: $
		1690	ALIAS:
		1691	usecount = 1
1615	CODE:	1692	CODE:
		1693	switch (ix)
		1694	{
1616	RETVAL = coro_rss (aTHX_ coro);	1695	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1696	case 1: RETVAL = coro->usecount; break;
		1697	}
1617	OUTPUT:	1698	OUTPUT:
1618	RETVAL	1699	RETVAL
1619		1700
1620		1701
1621	MODULE = Coro::State PACKAGE = Coro	1702	MODULE = Coro::State PACKAGE = Coro
…		…
1623	BOOT:	1704	BOOT:
1624	{	1705	{
1625	int i;	1706	int i;
1626		1707
1627	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);	1708	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1709	get_sv ("Coro::POOL_RSS" , TRUE); /* silence stupid 5.10 warning */
1628	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);	1710	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1711	get_sv ("Coro::POOL_SIZE" , TRUE); /* silence stupid 5.10 warning */
1629	av_async_pool = get_av ("Coro::async_pool", TRUE);	1712	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1713	get_av ("Coro::async_pool", TRUE); /* silence stupid 5.10 warning */
1630		1714
1631	coro_current = get_sv ("Coro::current", FALSE);	1715	coro_current = get_sv ("Coro::current", FALSE);
1632	SvREADONLY_on (coro_current);	1716	SvREADONLY_on (coro_current);
1633		1717
1634	coro_stash = gv_stashpv ("Coro", TRUE);	1718	coro_stash = gv_stashpv ("Coro", TRUE);
1635		1719
1636	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1720	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1637	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1721	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1638	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1722	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1639	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1723	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1642		1726
1643	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1727	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1644	coro_ready[i] = newAV ();	1728	coro_ready[i] = newAV ();
1645		1729
1646	{	1730	{
1647	SV *sv = perl_get_sv("Coro::API", 1);	1731	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1732	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1648		1733
1649	coroapi.schedule = api_schedule;	1734	coroapi.schedule = api_schedule;
1650	coroapi.save = api_save;
1651	coroapi.cede = api_cede;	1735	coroapi.cede = api_cede;
1652	coroapi.cede_notself = api_cede_notself;	1736	coroapi.cede_notself = api_cede_notself;
1653	coroapi.ready = api_ready;	1737	coroapi.ready = api_ready;
1654	coroapi.is_ready = api_is_ready;	1738	coroapi.is_ready = api_is_ready;
1655	coroapi.nready = &coro_nready;	1739	coroapi.nready = &coro_nready;
…		…
1704	CODE:	1788	CODE:
1705	RETVAL = coro_nready;	1789	RETVAL = coro_nready;
1706	OUTPUT:	1790	OUTPUT:
1707	RETVAL	1791	RETVAL
1708		1792
		1793	void
		1794	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1795	PROTOTYPE: $;$
		1796	CODE:
		1797	SvREFCNT_dec (self->throw);
		1798	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1799
1709	# for async_pool speedup	1800	# for async_pool speedup
1710	void	1801	void
1711	_pool_1 (SV *cb)	1802	_pool_1 (SV *cb)
1712	CODE:	1803	CODE:
1713	{	1804	{
1714	int i, len;	1805	struct coro *coro = SvSTATE (coro_current);
1715	HV hv = (HV )SvRV (coro_current);	1806	HV hv = (HV )SvRV (coro_current);
1716	AV *defav = GvAV (PL_defgv);	1807	AV *defav = GvAV (PL_defgv);
1717	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1808	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1718	AV *invoke_av;	1809	AV *invoke_av;
		1810	int i, len;
1719		1811
1720	if (!invoke)	1812	if (!invoke)
1721	croak ("\3terminate\2\n");	1813	croak ("\3async_pool terminate\2\n");
		1814
		1815	SvREFCNT_dec (coro->saved_deffh);
		1816	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1722		1817
1723	hv_store (hv, "desc", sizeof ("desc") - 1,	1818	hv_store (hv, "desc", sizeof ("desc") - 1,
1724	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	1819	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1725		1820
1726	invoke_av = (AV *)SvRV (invoke);	1821	invoke_av = (AV *)SvRV (invoke);
…		…
1744	{	1839	{
1745	struct coro *coro = SvSTATE (coro_current);	1840	struct coro *coro = SvSTATE (coro_current);
1746		1841
1747	sv_setsv (cb, &PL_sv_undef);	1842	sv_setsv (cb, &PL_sv_undef);
1748		1843
		1844	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1845	coro->saved_deffh = 0;
		1846
1749	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	1847	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1750	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	1848	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1751	croak ("\3terminate\2\n");	1849	croak ("\3async_pool terminate\2\n");
1752		1850
1753	av_clear (GvAV (PL_defgv));	1851	av_clear (GvAV (PL_defgv));
1754	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	1852	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1755	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	1853	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1756	coro->save = CORO_SAVE_DEF;	1854
1757	coro->prio = 0;	1855	coro->prio = 0;
		1856
		1857	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1858	api_trace (coro_current, 0);
		1859
1758	av_push (av_async_pool, newSVsv (coro_current));	1860	av_push (av_async_pool, newSVsv (coro_current));
1759	}	1861	}
1760		1862
1761		1863
1762	MODULE = Coro::State PACKAGE = Coro::AIO	1864	MODULE = Coro::State PACKAGE = Coro::AIO

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Comparing Coro/Coro/State.xs (file contents): Revision 1.171 by root, Sat Sep 29 19:42:10 2007 UTC vs. Revision 1.198 by root, Sun Oct 7 03:58:37 2007 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.171 by root, Sat Sep 29 19:42:10 2007 UTC vs.
Revision 1.198 by root, Sun Oct 7 03:58:37 2007 UTC