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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.158 by root, Fri Sep 21 02:23:48 2007 UTC vs.
Revision 1.194 by root, Sat Oct 6 00:08:04 2007 UTC

…		…
75	/* 5.8.7 */	75	/* 5.8.7 */
76	#ifndef SvRV_set	76	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	77	# define SvRV_set(s,v) SvRV(s) = (v)
78	#endif	78	#endif
79		79
		80	/* 5.8.8 */
		81	#ifndef GV_NOTQUAL
		82	# define GV_NOTQUAL 0
		83	#endif
		84	#ifndef newSV
		85	# define newSV(l) NEWSV(0,l)
		86	#endif
		87
80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	88	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
81	# undef CORO_STACKGUARD	89	# undef CORO_STACKGUARD
82	#endif	90	#endif
83		91
84	#ifndef CORO_STACKGUARD	92	#ifndef CORO_STACKGUARD
…		…
98	#define IN_DESTRUCT (PL_main_cv == Nullcv)	106	#define IN_DESTRUCT (PL_main_cv == Nullcv)
99		107
100	#if __GNUC__ >= 3	108	#if __GNUC__ >= 3
101	# define attribute(x) __attribute__(x)	109	# define attribute(x) __attribute__(x)
102	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	110	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
		111	# define expect(expr,value) __builtin_expect ((expr),(value))
103	#else	112	#else
104	# define attribute(x)	113	# define attribute(x)
105	# define BARRIER	114	# define BARRIER
		115	# define expect(expr,value) (expr)
106	#endif	116	#endif
		117
		118	#define expect_false(expr) expect ((expr) != 0, 0)
		119	#define expect_true(expr) expect ((expr) != 0, 1)
107		120
108	#define NOINLINE attribute ((noinline))	121	#define NOINLINE attribute ((noinline))
109		122
110	#include "CoroAPI.h"	123	#include "CoroAPI.h"
111		124
…		…
132	static AV main_mainstack; / used to differentiate between $main and others */	145	static AV main_mainstack; / used to differentiate between $main and others */
133	static JMPENV *main_top_env;	146	static JMPENV *main_top_env;
134	static HV coro_state_stash, coro_stash;	147	static HV coro_state_stash, coro_stash;
135	static SV coro_mortal; / will be freed after next transfer */	148	static SV coro_mortal; / will be freed after next transfer */
136		149
		150	static GV irsgv; / $/ */
		151	static GV stdoutgv; / STDOUT /
		152
		153	/* async_pool helper stuff */
		154	static SV *sv_pool_rss;
		155	static SV *sv_pool_size;
		156	static AV *av_async_pool;
		157
137	static struct coro_cctx *cctx_first;	158	static struct coro_cctx *cctx_first;
138	static int cctx_count, cctx_idle;	159	static int cctx_count, cctx_idle;
		160
		161	enum {
		162	CC_MAPPED = 0x01,
		163	CC_NOREUSE = 0x02, /* throw this away after tracing */
		164	CC_TRACE = 0x04,
		165	CC_TRACE_SUB = 0x08, /* trace sub calls */
		166	CC_TRACE_LINE = 0x10, /* trace each statement */
		167	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		168	};
139		169
140	/* this is a structure representing a c-level coroutine */	170	/* this is a structure representing a c-level coroutine */
141	typedef struct coro_cctx {	171	typedef struct coro_cctx {
142	struct coro_cctx *next;	172	struct coro_cctx *next;
143		173
…		…
152	coro_context cctx;	182	coro_context cctx;
153		183
154	#if CORO_USE_VALGRIND	184	#if CORO_USE_VALGRIND
155	int valgrind_id;	185	int valgrind_id;
156	#endif	186	#endif
157	char inuse, mapped;	187	unsigned char flags;
158	} coro_cctx;	188	} coro_cctx;
159		189
160	enum {	190	enum {
161	CF_RUNNING = 0x0001, /* coroutine is running */	191	CF_RUNNING = 0x0001, /* coroutine is running */
162	CF_READY = 0x0002, /* coroutine is ready */	192	CF_READY = 0x0002, /* coroutine is ready */
…		…
170	coro_cctx *cctx;	200	coro_cctx *cctx;
171		201
172	/* data associated with this coroutine (initial args) */	202	/* data associated with this coroutine (initial args) */
173	AV *args;	203	AV *args;
174	int refcnt;	204	int refcnt;
175	int save; /* CORO_SAVE flags */
176	int flags; /* CF_ flags */	205	int flags; /* CF_ flags */
177		206
178	/* optionally saved, might be zero */	207	/* optionally saved, might be zero */
179	AV defav; / @_ */	208	AV defav; / @_ */
180	SV defsv; / $_ */	209	SV defsv; / $_ */
181	SV errsv; / $@ */	210	SV errsv; / $@ */
182	GV deffh; / default filehandle */	211	SV deffh; / default filehandle */
183	SV irssv; / $/ */	212	SV irssv; / $/ */
184	SV irssv_sv; / real $/ cache */	213	SV irssv_sv; / real $/ cache */
185		214
186	#define VAR(name,type) type name;	215	#define VAR(name,type) type name;
187	# include "state.h"	216	# include "state.h"
188	#undef VAR	217	#undef VAR
189		218
		219	/* statistics */
		220	int usecount; /* number of transfers to this coro */
		221
190	/* coro process data */	222	/* coro process data */
191	int prio;	223	int prio;
		224	//SV *throw;
		225
		226	/* async_pool */
		227	SV *saved_deffh;
192		228
193	/* linked list */	229	/* linked list */
194	struct coro next, prev;	230	struct coro next, prev;
195	HV hv; / the perl hash associated with this coro, if any */	231	HV hv; / the perl hash associated with this coro, if any */
196	};	232	};
…		…
285	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	321	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
286	? SvMAGIC (cv) \	322	? SvMAGIC (cv) \
287	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	323	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
288	: 0	324	: 0
289		325
		326	static struct coro *
		327	SvSTATE_ (pTHX_ SV *coro)
		328	{
		329	HV *stash;
		330	MAGIC *mg;
		331
		332	if (SvROK (coro))
		333	coro = SvRV (coro);
		334
		335	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		336	croak ("Coro::State object required");
		337
		338	stash = SvSTASH (coro);
		339	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		340	{
		341	/* very slow, but rare, check */
		342	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		343	croak ("Coro::State object required");
		344	}
		345
		346	mg = CORO_MAGIC (coro);
		347	return (struct coro *)mg->mg_ptr;
		348	}
		349
		350	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		351
290	/* the next two functions merely cache the padlists */	352	/* the next two functions merely cache the padlists */
291	static void	353	static void
292	get_padlist (pTHX_ CV *cv)	354	get_padlist (pTHX_ CV *cv)
293	{	355	{
294	MAGIC *mg = CORO_MAGIC (cv);	356	MAGIC *mg = CORO_MAGIC (cv);
295	AV *av;	357	AV *av;
296		358
297	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	359	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
298	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	360	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
299	else	361	else
300	{	362	{
301	#if CORO_PREFER_PERL_FUNCTIONS	363	#if CORO_PREFER_PERL_FUNCTIONS
302	/* this is probably cleaner, but also slower? */	364	/* this is probably cleaner, but also slower? */
…		…
314	put_padlist (pTHX_ CV *cv)	376	put_padlist (pTHX_ CV *cv)
315	{	377	{
316	MAGIC *mg = CORO_MAGIC (cv);	378	MAGIC *mg = CORO_MAGIC (cv);
317	AV *av;	379	AV *av;
318		380
319	if (!mg)	381	if (expect_false (!mg))
320	{	382	{
321	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	383	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
322	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	384	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
323	mg->mg_virtual = &vtbl_coro;	385	mg->mg_virtual = &vtbl_coro;
324	mg->mg_obj = (SV *)newAV ();	386	mg->mg_obj = (SV *)newAV ();
325	}	387	}
326		388
327	av = (AV *)mg->mg_obj;	389	av = (AV *)mg->mg_obj;
328		390
329	if (AvFILLp (av) >= AvMAX (av))	391	if (expect_false (AvFILLp (av) >= AvMAX (av)))
330	av_extend (av, AvMAX (av) + 1);	392	av_extend (av, AvMAX (av) + 1);
331		393
332	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	394	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
333	}	395	}
334		396
335	/ load & save, init *****************************************************/	397	/ load & save, init *****************************************************/
336
337	#define SB do {
338	#define SE } while (0)
339
340	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
341		398
342	static void	399	static void
343	load_perl (pTHX_ Coro__State c)	400	load_perl (pTHX_ Coro__State c)
344	{	401	{
345	#define VAR(name,type) PL_ ## name = c->name;	402	#define VAR(name,type) PL_ ## name = c->name;
346	# include "state.h"	403	# include "state.h"
347	#undef VAR	404	#undef VAR
348		405
349	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	406	GvSV (PL_defgv) = c->defsv;
350	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	407	GvAV (PL_defgv) = c->defav;
351	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	408	GvSV (PL_errgv) = c->errsv;
352	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);	409	GvSV (irsgv) = c->irssv_sv;
353
354	if (c->irssv)
355	{
356	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
357	{
358	SvREFCNT_dec (c->irssv);
359	c->irssv = 0;
360	}
361	else
362	{
363	REPLACE_SV (PL_rs, c->irssv);
364	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
365	sv_setsv (c->irssv_sv, PL_rs);
366	}
367	}
368		410
369	{	411	{
370	dSP;	412	dSP;
371	CV *cv;	413	CV *cv;
372		414
373	/* now do the ugly restore mess */	415	/* now do the ugly restore mess */
374	while ((cv = (CV *)POPs))	416	while (expect_true (cv = (CV *)POPs))
375	{	417	{
376	put_padlist (aTHX_ cv); /* mark this padlist as available */	418	put_padlist (aTHX_ cv); /* mark this padlist as available */
377	CvDEPTH (cv) = PTR2IV (POPs);	419	CvDEPTH (cv) = PTR2IV (POPs);
378	CvPADLIST (cv) = (AV *)POPs;	420	CvPADLIST (cv) = (AV *)POPs;
379	}	421	}
…		…
398		440
399	XPUSHs (Nullsv);	441	XPUSHs (Nullsv);
400	/* this loop was inspired by pp_caller */	442	/* this loop was inspired by pp_caller */
401	for (;;)	443	for (;;)
402	{	444	{
403	while (cxix >= 0)	445	while (expect_true (cxix >= 0))
404	{	446	{
405	PERL_CONTEXT *cx = &ccstk[cxix--];	447	PERL_CONTEXT *cx = &ccstk[cxix--];
406		448
407	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	449	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
408	{	450	{
409	CV *cv = cx->blk_sub.cv;	451	CV *cv = cx->blk_sub.cv;
410		452
411	if (CvDEPTH (cv))	453	if (expect_true (CvDEPTH (cv)))
412	{	454	{
413	EXTEND (SP, 3);	455	EXTEND (SP, 3);
414	PUSHs ((SV *)CvPADLIST (cv));	456	PUSHs ((SV *)CvPADLIST (cv));
415	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	457	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
416	PUSHs ((SV *)cv);	458	PUSHs ((SV *)cv);
…		…
419	get_padlist (aTHX_ cv);	461	get_padlist (aTHX_ cv);
420	}	462	}
421	}	463	}
422	}	464	}
423		465
424	if (top_si->si_type == PERLSI_MAIN)	466	if (expect_true (top_si->si_type == PERLSI_MAIN))
425	break;	467	break;
426		468
427	top_si = top_si->si_prev;	469	top_si = top_si->si_prev;
428	ccstk = top_si->si_cxstack;	470	ccstk = top_si->si_cxstack;
429	cxix = top_si->si_cxix;	471	cxix = top_si->si_cxix;
430	}	472	}
431		473
432	PUTBACK;	474	PUTBACK;
433	}	475	}
434		476
435	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	477	c->defav = GvAV (PL_defgv);
436	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	478	c->defsv = DEFSV;
437	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	479	c->errsv = ERRSV;
438	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	480	c->irssv_sv = GvSV (irsgv);
439	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
440		481
441	#define VAR(name,type)c->name = PL_ ## name;	482	#define VAR(name,type)c->name = PL_ ## name;
442	# include "state.h"	483	# include "state.h"
443	#undef VAR	484	#undef VAR
444	}	485	}
…		…
497	* destroy the stacks, the callchain etc...	538	* destroy the stacks, the callchain etc...
498	*/	539	*/
499	static void	540	static void
500	coro_destroy_stacks (pTHX)	541	coro_destroy_stacks (pTHX)
501	{	542	{
502	if (!IN_DESTRUCT)
503	{
504	/* restore all saved variables and stuff */
505	LEAVE_SCOPE (0);
506	assert (PL_tmps_floor == -1);
507
508	/* free all temporaries */
509	FREETMPS;
510	assert (PL_tmps_ix == -1);
511
512	/* unwind all extra stacks */
513	POPSTACK_TO (PL_mainstack);
514
515	/* unwind main stack */
516	dounwind (-1);
517	}
518
519	while (PL_curstackinfo->si_next)	543	while (PL_curstackinfo->si_next)
520	PL_curstackinfo = PL_curstackinfo->si_next;	544	PL_curstackinfo = PL_curstackinfo->si_next;
521		545
522	while (PL_curstackinfo)	546	while (PL_curstackinfo)
523	{	547	{
…		…
539	Safefree (PL_retstack);	563	Safefree (PL_retstack);
540	#endif	564	#endif
541	}	565	}
542		566
543	static size_t	567	static size_t
544	coro_rss (struct coro *coro)	568	coro_rss (pTHX_ struct coro *coro)
545	{	569	{
546	size_t rss = sizeof (coro);	570	size_t rss = sizeof (*coro);
547		571
548	if (coro->mainstack)	572	if (coro->mainstack)
549	{	573	{
550	if (coro->flags & CF_RUNNING)	574	if (coro->flags & CF_RUNNING)
551	{	575	{
…		…
553	# include "state.h"	577	# include "state.h"
554	#undef VAR	578	#undef VAR
555	}	579	}
556		580
557	rss += sizeof (coro->curstackinfo);	581	rss += sizeof (coro->curstackinfo);
558	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);	582	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
559	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	583	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
560	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	584	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
561	rss += coro->tmps_max * sizeof (SV *);	585	rss += coro->tmps_max * sizeof (SV *);
562	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	586	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
563	rss += coro->scopestack_max * sizeof (I32);	587	rss += coro->scopestack_max * sizeof (I32);
564	rss += coro->savestack_max * sizeof (ANY);	588	rss += coro->savestack_max * sizeof (ANY);
565		589
…		…
572	}	596	}
573		597
574	/ coroutine stack handling **********************************************/	598	/ coroutine stack handling **********************************************/
575		599
576	static void	600	static void
577	setup_coro (pTHX_ struct coro *coro)	601	coro_setup (pTHX_ struct coro *coro)
578	{	602	{
579	/*	603	/*
580	* emulate part of the perl startup here.	604	* emulate part of the perl startup here.
581	*/	605	*/
582	coro_init_stacks (aTHX);	606	coro_init_stacks (aTHX);
583		607
		608	PL_runops = RUNOPS_DEFAULT;
584	PL_curcop = &PL_compiling;	609	PL_curcop = &PL_compiling;
585	PL_in_eval = EVAL_NULL;	610	PL_in_eval = EVAL_NULL;
586	PL_comppad = 0;	611	PL_comppad = 0;
587	PL_curpm = 0;	612	PL_curpm = 0;
588	PL_localizing = 0;	613	PL_localizing = 0;
589	PL_dirty = 0;	614	PL_dirty = 0;
590	PL_restartop = 0;	615	PL_restartop = 0;
		616
		617	GvSV (PL_defgv) = newSV (0);
		618	GvAV (PL_defgv) = coro->args; coro->args = 0;
		619	GvSV (PL_errgv) = newSV (0);
		620	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		621	PL_rs = newSVsv (GvSV (irsgv));
		622	PL_defoutgv = SvREFCNT_inc (stdoutgv);
		623
		624	ENTER; /* necessary e.g. for dounwind */
591		625
592	{	626	{
593	dSP;	627	dSP;
594	LOGOP myop;	628	LOGOP myop;
595		629
596	SvREFCNT_dec (GvAV (PL_defgv));
597	GvAV (PL_defgv) = coro->args; coro->args = 0;
598
599	Zero (&myop, 1, LOGOP);	630	Zero (&myop, 1, LOGOP);
600	myop.op_next = Nullop;	631	myop.op_next = Nullop;
601	myop.op_flags = OPf_WANT_VOID;	632	myop.op_flags = OPf_WANT_VOID;
602		633
603	PUSHMARK (SP);	634	PUSHMARK (SP);
604	XPUSHs (av_shift (GvAV (PL_defgv)));	635	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
605	PUTBACK;	636	PUTBACK;
606	PL_op = (OP *)&myop;	637	PL_op = (OP *)&myop;
607	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	638	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
608	SPAGAIN;	639	SPAGAIN;
609	}	640	}
		641	}
610		642
611	ENTER; /* necessary e.g. for dounwind */	643	static void
		644	coro_destroy (pTHX_ struct coro *coro)
		645	{
		646	if (!IN_DESTRUCT)
		647	{
		648	/* restore all saved variables and stuff */
		649	LEAVE_SCOPE (0);
		650	assert (PL_tmps_floor == -1);
		651
		652	/* free all temporaries */
		653	FREETMPS;
		654	assert (PL_tmps_ix == -1);
		655
		656	/* unwind all extra stacks */
		657	POPSTACK_TO (PL_mainstack);
		658
		659	/* unwind main stack */
		660	dounwind (-1);
		661	}
		662
		663	SvREFCNT_dec (GvSV (PL_defgv));
		664	SvREFCNT_dec (GvAV (PL_defgv));
		665	SvREFCNT_dec (GvSV (PL_errgv));
		666	SvREFCNT_dec (PL_defoutgv);
		667	SvREFCNT_dec (PL_rs);
		668	SvREFCNT_dec (GvSV (irsgv));
		669
		670	SvREFCNT_dec (coro->saved_deffh);
		671	//SvREFCNT_dec (coro->throw);
		672
		673	coro_destroy_stacks (aTHX);
612	}	674	}
613		675
614	static void	676	static void
615	free_coro_mortal (pTHX)	677	free_coro_mortal (pTHX)
616	{	678	{
617	if (coro_mortal)	679	if (expect_true (coro_mortal))
618	{	680	{
619	SvREFCNT_dec (coro_mortal);	681	SvREFCNT_dec (coro_mortal);
620	coro_mortal = 0;	682	coro_mortal = 0;
621	}	683	}
		684	}
		685
		686	static int
		687	runops_trace (pTHX)
		688	{
		689	COP *oldcop = 0;
		690	int oldcxix = -2;
		691	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		692	coro_cctx *cctx = coro->cctx;
		693
		694	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		695	{
		696	PERL_ASYNC_CHECK ();
		697
		698	if (cctx->flags & CC_TRACE_ALL)
		699	{
		700	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		701	{
		702	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		703	SV bot, top;
		704	AV av = newAV (); / return values */
		705	SV **cb;
		706	dSP;
		707
		708	GV *gv = CvGV (cx->blk_sub.cv);
		709	SV *fullname = sv_2mortal (newSV (0));
		710	if (isGV (gv))
		711	gv_efullname3 (fullname, gv, 0);
		712
		713	bot = PL_stack_base + cx->blk_oldsp + 1;
		714	top = cx->blk_gimme == G_ARRAY ? SP + 1
		715	: cx->blk_gimme == G_SCALAR ? bot + 1
		716	: bot;
		717
		718	av_extend (av, top - bot);
		719	while (bot < top)
		720	av_push (av, SvREFCNT_inc (*bot++));
		721
		722	PL_runops = RUNOPS_DEFAULT;
		723	ENTER;
		724	SAVETMPS;
		725	EXTEND (SP, 3);
		726	PUSHMARK (SP);
		727	PUSHs (&PL_sv_no);
		728	PUSHs (fullname);
		729	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		730	PUTBACK;
		731	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		732	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		733	SPAGAIN;
		734	FREETMPS;
		735	LEAVE;
		736	PL_runops = runops_trace;
		737	}
		738
		739	if (oldcop != PL_curcop)
		740	{
		741	oldcop = PL_curcop;
		742
		743	if (PL_curcop != &PL_compiling)
		744	{
		745	SV **cb;
		746
		747	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		748	{
		749	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		750
		751	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		752	{
		753	runops_proc_t old_runops = PL_runops;
		754	dSP;
		755	GV *gv = CvGV (cx->blk_sub.cv);
		756	SV *fullname = sv_2mortal (newSV (0));
		757
		758	if (isGV (gv))
		759	gv_efullname3 (fullname, gv, 0);
		760
		761	PL_runops = RUNOPS_DEFAULT;
		762	ENTER;
		763	SAVETMPS;
		764	EXTEND (SP, 3);
		765	PUSHMARK (SP);
		766	PUSHs (&PL_sv_yes);
		767	PUSHs (fullname);
		768	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		769	PUTBACK;
		770	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		771	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		772	SPAGAIN;
		773	FREETMPS;
		774	LEAVE;
		775	PL_runops = runops_trace;
		776	}
		777
		778	oldcxix = cxstack_ix;
		779	}
		780
		781	if (cctx->flags & CC_TRACE_LINE)
		782	{
		783	dSP;
		784
		785	PL_runops = RUNOPS_DEFAULT;
		786	ENTER;
		787	SAVETMPS;
		788	EXTEND (SP, 3);
		789	PL_runops = RUNOPS_DEFAULT;
		790	PUSHMARK (SP);
		791	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		792	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		793	PUTBACK;
		794	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		795	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		796	SPAGAIN;
		797	FREETMPS;
		798	LEAVE;
		799	PL_runops = runops_trace;
		800	}
		801	}
		802	}
		803	}
		804	}
		805
		806	TAINT_NOT;
		807	return 0;
622	}	808	}
623		809
624	/* inject a fake call to Coro::State::_cctx_init into the execution */	810	/* inject a fake call to Coro::State::_cctx_init into the execution */
625	/* _cctx_init should be careful, as it could be called at almost any time */	811	/* _cctx_init should be careful, as it could be called at almost any time */
626	/* during execution of a perl program */	812	/* during execution of a perl program */
627	static void NOINLINE	813	static void NOINLINE
628	prepare_cctx (pTHX_ coro_cctx *cctx)	814	prepare_cctx (pTHX_ coro_cctx *cctx)
629	{	815	{
630	dSP;	816	dSP;
631	LOGOP myop;	817	LOGOP myop;
		818
		819	PL_top_env = &PL_start_env;
		820
		821	if (cctx->flags & CC_TRACE)
		822	PL_runops = runops_trace;
632		823
633	Zero (&myop, 1, LOGOP);	824	Zero (&myop, 1, LOGOP);
634	myop.op_next = PL_op;	825	myop.op_next = PL_op;
635	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	826	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
636		827
…		…
653	dTHX;	844	dTHX;
654		845
655	/* coro_run is the alternative tail of transfer(), so unlock here. */	846	/* coro_run is the alternative tail of transfer(), so unlock here. */
656	UNLOCK;	847	UNLOCK;
657		848
658	PL_top_env = &PL_start_env;	849	/* we now skip the entersub that lead to transfer() */
		850	PL_op = PL_op->op_next;
659		851
660	/* inject a fake subroutine call to cctx_init */	852	/* inject a fake subroutine call to cctx_init */
661	prepare_cctx (aTHX_ (coro_cctx *)arg);	853	prepare_cctx (aTHX_ (coro_cctx *)arg);
662		854
663	/* somebody or something will hit me for both perl_run and PL_restartop */	855	/* somebody or something will hit me for both perl_run and PL_restartop */
…		…
697	# if CORO_STACKGUARD	889	# if CORO_STACKGUARD
698	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	890	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
699	# endif	891	# endif
700	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	892	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
701	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	893	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
702	cctx->mapped = 1;	894	cctx->flags \|= CC_MAPPED;
703	}	895	}
704	else	896	else
705	#endif	897	#endif
706	{	898	{
707	cctx->ssize = coro_stacksize * (long)sizeof (long);	899	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
734	#if CORO_USE_VALGRIND	926	#if CORO_USE_VALGRIND
735	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	927	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
736	#endif	928	#endif
737		929
738	#if HAVE_MMAP	930	#if HAVE_MMAP
739	if (cctx->mapped)	931	if (cctx->flags & CC_MAPPED)
740	munmap (cctx->sptr, cctx->ssize);	932	munmap (cctx->sptr, cctx->ssize);
741	else	933	else
742	#endif	934	#endif
743	Safefree (cctx->sptr);	935	Safefree (cctx->sptr);
744		936
745	Safefree (cctx);	937	Safefree (cctx);
746	}	938	}
747		939
		940	/* wether this cctx should be destructed */
		941	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		942
748	static coro_cctx *	943	static coro_cctx *
749	cctx_get (pTHX)	944	cctx_get (pTHX)
750	{	945	{
751	while (cctx_first)	946	while (expect_true (cctx_first))
752	{	947	{
753	coro_cctx *cctx = cctx_first;	948	coro_cctx *cctx = cctx_first;
754	cctx_first = cctx->next;	949	cctx_first = cctx->next;
755	--cctx_idle;	950	--cctx_idle;
756		951
757	if (cctx->ssize >= coro_stacksize)	952	if (expect_true (!CCTX_EXPIRED (cctx)))
758	return cctx;	953	return cctx;
759		954
760	cctx_destroy (cctx);	955	cctx_destroy (cctx);
761	}	956	}
762		957
763	PL_op = PL_op->op_next;
764	return cctx_new ();	958	return cctx_new ();
765	}	959	}
766		960
767	static void	961	static void
768	cctx_put (coro_cctx *cctx)	962	cctx_put (coro_cctx *cctx)
769	{	963	{
770	/* free another cctx if overlimit */	964	/* free another cctx if overlimit */
771	if (cctx_idle >= MAX_IDLE_CCTX)	965	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
772	{	966	{
773	coro_cctx *first = cctx_first;	967	coro_cctx *first = cctx_first;
774	cctx_first = first->next;	968	cctx_first = first->next;
775	--cctx_idle;	969	--cctx_idle;
776		970
777	assert (!first->inuse);
778	cctx_destroy (first);	971	cctx_destroy (first);
779	}	972	}
780		973
781	++cctx_idle;	974	++cctx_idle;
782	cctx->next = cctx_first;	975	cctx->next = cctx_first;
783	cctx_first = cctx;	976	cctx_first = cctx;
784	}	977	}
785		978
786	/ coroutine switching ***************************************************/	979	/ coroutine switching ***************************************************/
787		980
788	/* never call directly, always through the coro_state_transfer global variable */	981	static void
		982	transfer_check (pTHX_ struct coro prev, struct coro next)
		983	{
		984	if (expect_true (prev != next))
		985	{
		986	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
		987	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		988
		989	if (expect_false (next->flags & CF_RUNNING))
		990	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		991
		992	if (expect_false (next->flags & CF_DESTROYED))
		993	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		994
		995	if (expect_false (PL_lex_state != LEX_NOTPARSING))
		996	croak ("Coro::State::transfer called while parsing, but this is not supported");
		997	}
		998	}
		999
		1000	/* always use the TRANSFER macro */
789	static void NOINLINE	1001	static void NOINLINE
790	transfer (pTHX_ struct coro prev, struct coro next)	1002	transfer (pTHX_ struct coro prev, struct coro next)
791	{	1003	{
792	dSTACKLEVEL;	1004	dSTACKLEVEL;
793		1005
794	/* sometimes transfer is only called to set idle_sp */	1006	/* sometimes transfer is only called to set idle_sp */
795	if (!next)	1007	if (expect_false (!next))
796	{	1008	{
797	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1009	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
798	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1010	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
799	}	1011	}
800	else if (prev != next)	1012	else if (expect_true (prev != next))
801	{	1013	{
802	coro_cctx *prev__cctx;	1014	coro_cctx *prev__cctx;
803		1015
804	if (prev->flags & CF_NEW)	1016	if (expect_false (prev->flags & CF_NEW))
805	{	1017	{
806	/* create a new empty context */	1018	/* create a new empty context */
807	Newz (0, prev->cctx, 1, coro_cctx);	1019	Newz (0, prev->cctx, 1, coro_cctx);
808	prev->cctx->inuse = 1;
809	prev->flags &= ~CF_NEW;	1020	prev->flags &= ~CF_NEW;
810	prev->flags \|= CF_RUNNING;	1021	prev->flags \|= CF_RUNNING;
811	}	1022	}
812		1023
813	/TODO: must not croak here /
814	if (!prev->flags & CF_RUNNING)
815	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
816
817	if (next->flags & CF_RUNNING)
818	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
819
820	if (next->flags & CF_DESTROYED)
821	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
822
823	prev->flags &= ~CF_RUNNING;	1024	prev->flags &= ~CF_RUNNING;
824	next->flags \|= CF_RUNNING;	1025	next->flags \|= CF_RUNNING;
825		1026
826	LOCK;	1027	LOCK;
827		1028
828	if (next->flags & CF_NEW)	1029	if (expect_false (next->flags & CF_NEW))
829	{	1030	{
830	/* need to start coroutine */	1031	/* need to start coroutine */
831	next->flags &= ~CF_NEW;	1032	next->flags &= ~CF_NEW;
832	/* first get rid of the old state */	1033	/* first get rid of the old state */
833	save_perl (aTHX_ prev);	1034	save_perl (aTHX_ prev);
834	/* setup coroutine call */	1035	/* setup coroutine call */
835	setup_coro (aTHX_ next);	1036	coro_setup (aTHX_ next);
836	/* need a new stack */
837	assert (!next->cctx);
838	}	1037	}
839	else	1038	else
840	{	1039	{
841	/* coroutine already started */	1040	/* coroutine already started */
842	save_perl (aTHX_ prev);	1041	save_perl (aTHX_ prev);
…		…
844	}	1043	}
845		1044
846	prev__cctx = prev->cctx;	1045	prev__cctx = prev->cctx;
847		1046
848	/* possibly "free" the cctx */	1047	/* possibly "free" the cctx */
849	if (prev__cctx->idle_sp == STACKLEVEL)	1048	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
850	{	1049	{
851	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1050	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
852	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1051	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
853		1052
854	prev->cctx = 0;	1053	prev->cctx = 0;
855		1054
		1055	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1056	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1057	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1058	next->cctx = cctx_get (aTHX);
		1059
856	cctx_put (prev__cctx);	1060	cctx_put (prev__cctx);
857	prev__cctx->inuse = 0;
858	}	1061	}
859		1062
		1063	++next->usecount;
		1064
860	if (!next->cctx)	1065	if (expect_true (!next->cctx))
861	{
862	next->cctx = cctx_get (aTHX);	1066	next->cctx = cctx_get (aTHX);
863	assert (!next->cctx->inuse);
864	next->cctx->inuse = 1;
865	}
866		1067
867	if (prev__cctx != next->cctx)	1068	if (expect_false (prev__cctx != next->cctx))
868	{	1069	{
869	prev__cctx->top_env = PL_top_env;	1070	prev__cctx->top_env = PL_top_env;
870	PL_top_env = next->cctx->top_env;	1071	PL_top_env = next->cctx->top_env;
871	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1072	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
872	}	1073	}
…		…
880	{	1081	{
881	struct coro prev, next;	1082	struct coro prev, next;
882	};	1083	};
883		1084
884	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1085	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1086	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
885		1087
886	/ high level stuff ******************************************************/	1088	/ high level stuff ******************************************************/
887		1089
888	static int	1090	static int
889	coro_state_destroy (pTHX_ struct coro *coro)	1091	coro_state_destroy (pTHX_ struct coro *coro)
…		…
906		1108
907	if (coro->mainstack && coro->mainstack != main_mainstack)	1109	if (coro->mainstack && coro->mainstack != main_mainstack)
908	{	1110	{
909	struct coro temp;	1111	struct coro temp;
910		1112
911	assert (!(coro->flags & CF_RUNNING));
912
913	Zero (&temp, 1, struct coro);
914	temp.save = CORO_SAVE_ALL;
915
916	if (coro->flags & CF_RUNNING)	1113	if (coro->flags & CF_RUNNING)
917	croak ("FATAL: tried to destroy currently running coroutine");	1114	croak ("FATAL: tried to destroy currently running coroutine");
918		1115
919	save_perl (aTHX_ &temp);	1116	save_perl (aTHX_ &temp);
920	load_perl (aTHX_ coro);	1117	load_perl (aTHX_ coro);
921		1118
922	coro_destroy_stacks (aTHX);	1119	coro_destroy (aTHX_ coro);
923		1120
924	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1121	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
925		1122
926	coro->mainstack = 0;	1123	coro->mainstack = 0;
927	}	1124	}
…		…
972	#else	1169	#else
973	# define MGf_DUP 0	1170	# define MGf_DUP 0
974	#endif	1171	#endif
975	};	1172	};
976		1173
977	static struct coro *
978	SvSTATE_ (pTHX_ SV *coro)
979	{
980	HV *stash;
981	MAGIC *mg;
982
983	if (SvROK (coro))
984	coro = SvRV (coro);
985
986	stash = SvSTASH (coro);
987	if (stash != coro_stash && stash != coro_state_stash)
988	{
989	/* very slow, but rare, check */
990	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
991	croak ("Coro::State object required");
992	}
993
994	mg = CORO_MAGIC (coro);
995	return (struct coro *)mg->mg_ptr;
996	}
997
998	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
999
1000	static void	1174	static void
1001	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)	1175	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
1002	{	1176	{
1003	ta->prev = SvSTATE (prev_sv);	1177	ta->prev = SvSTATE (prev_sv);
1004	ta->next = SvSTATE (next_sv);	1178	ta->next = SvSTATE (next_sv);
		1179	TRANSFER_CHECK (*ta);
1005	}	1180	}
1006		1181
1007	static void	1182	static void
1008	api_transfer (SV prev_sv, SV next_sv)	1183	api_transfer (SV prev_sv, SV next_sv)
1009	{	1184	{
1010	dTHX;	1185	dTHX;
1011	struct transfer_args ta;	1186	struct transfer_args ta;
1012		1187
1013	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1188	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1014	TRANSFER (ta);	1189	TRANSFER (ta);
1015	}
1016
1017	static int
1018	api_save (SV *coro_sv, int new_save)
1019	{
1020	dTHX;
1021	struct coro *coro = SvSTATE (coro_sv);
1022	int old_save = coro->save;
1023
1024	if (new_save >= 0)
1025	coro->save = new_save;
1026
1027	return old_save;
1028	}	1190	}
1029		1191
1030	/ Coro ******************************************************************/	1192	/ Coro ******************************************************************/
1031		1193
1032	static void	1194	static void
…		…
1091	{	1253	{
1092	LOCK;	1254	LOCK;
1093	next_sv = coro_deq (aTHX_ PRIO_MIN);	1255	next_sv = coro_deq (aTHX_ PRIO_MIN);
1094		1256
1095	/* nothing to schedule: call the idle handler */	1257	/* nothing to schedule: call the idle handler */
1096	if (!next_sv)	1258	if (expect_false (!next_sv))
1097	{	1259	{
1098	dSP;	1260	dSP;
1099	UNLOCK;	1261	UNLOCK;
1100		1262
1101	ENTER;	1263	ENTER;
…		…
1111	}	1273	}
1112		1274
1113	ta->next = SvSTATE (next_sv);	1275	ta->next = SvSTATE (next_sv);
1114		1276
1115	/* cannot transfer to destroyed coros, skip and look for next */	1277	/* cannot transfer to destroyed coros, skip and look for next */
1116	if (ta->next->flags & CF_DESTROYED)	1278	if (expect_false (ta->next->flags & CF_DESTROYED))
1117	{	1279	{
1118	UNLOCK;	1280	UNLOCK;
1119	SvREFCNT_dec (next_sv);	1281	SvREFCNT_dec (next_sv);
1120	/* coro_nready is already taken care of by destroy */	1282	/* coro_nready is already taken care of by destroy */
1121	continue;	1283	continue;
…		…
1126	break;	1288	break;
1127	}	1289	}
1128		1290
1129	/* free this only after the transfer */	1291	/* free this only after the transfer */
1130	prev_sv = SvRV (coro_current);	1292	prev_sv = SvRV (coro_current);
1131	SvRV_set (coro_current, next_sv);
1132	ta->prev = SvSTATE (prev_sv);	1293	ta->prev = SvSTATE (prev_sv);
1133		1294	TRANSFER_CHECK (*ta);
1134	assert (ta->next->flags & CF_READY);	1295	assert (ta->next->flags & CF_READY);
1135	ta->next->flags &= ~CF_READY;	1296	ta->next->flags &= ~CF_READY;
		1297	SvRV_set (coro_current, next_sv);
1136		1298
1137	LOCK;	1299	LOCK;
1138	free_coro_mortal (aTHX);	1300	free_coro_mortal (aTHX);
1139	coro_mortal = prev_sv;	1301	coro_mortal = prev_sv;
1140	UNLOCK;	1302	UNLOCK;
…		…
1177	dTHX;	1339	dTHX;
1178	struct transfer_args ta;	1340	struct transfer_args ta;
1179		1341
1180	prepare_cede (aTHX_ &ta);	1342	prepare_cede (aTHX_ &ta);
1181		1343
1182	if (ta.prev != ta.next)	1344	if (expect_true (ta.prev != ta.next))
1183	{	1345	{
1184	TRANSFER (ta);	1346	TRANSFER (ta);
1185	return 1;	1347	return 1;
1186	}	1348	}
1187	else	1349	else
…		…
1201	}	1363	}
1202	else	1364	else
1203	return 0;	1365	return 0;
1204	}	1366	}
1205		1367
		1368	static void
		1369	api_trace (SV *coro_sv, int flags)
		1370	{
		1371	dTHX;
		1372	struct coro *coro = SvSTATE (coro_sv);
		1373
		1374	if (flags & CC_TRACE)
		1375	{
		1376	if (!coro->cctx)
		1377	coro->cctx = cctx_new ();
		1378	else if (!(coro->cctx->flags & CC_TRACE))
		1379	croak ("cannot enable tracing on coroutine with custom stack");
		1380
		1381	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1382	}
		1383	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1384	{
		1385	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1386
		1387	if (coro->flags & CF_RUNNING)
		1388	PL_runops = RUNOPS_DEFAULT;
		1389	else
		1390	coro->runops = RUNOPS_DEFAULT;
		1391	}
		1392	}
		1393
1206	MODULE = Coro::State PACKAGE = Coro::State	1394	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1207		1395
1208	PROTOTYPES: DISABLE	1396	PROTOTYPES: DISABLE
1209		1397
1210	BOOT:	1398	BOOT:
1211	{	1399	{
1212	#ifdef USE_ITHREADS	1400	#ifdef USE_ITHREADS
1213	MUTEX_INIT (&coro_mutex);	1401	MUTEX_INIT (&coro_mutex);
1214	#endif	1402	#endif
1215	BOOT_PAGESIZE;	1403	BOOT_PAGESIZE;
1216		1404
		1405	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1406	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1407
1217	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1408	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1218		1409
1219	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1410	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1220	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1411	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1221	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1222	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1223	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1224	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));	1412	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1225	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1413	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1226		1414
1227	main_mainstack = PL_mainstack;	1415	main_mainstack = PL_mainstack;
1228	main_top_env = PL_top_env;	1416	main_top_env = PL_top_env;
1229		1417
1230	while (main_top_env->je_prev)	1418	while (main_top_env->je_prev)
…		…
1243	struct coro *coro;	1431	struct coro *coro;
1244	HV *hv;	1432	HV *hv;
1245	int i;	1433	int i;
1246		1434
1247	Newz (0, coro, 1, struct coro);	1435	Newz (0, coro, 1, struct coro);
1248	coro->args = newAV ();	1436	coro->args = newAV ();
1249	coro->save = CORO_SAVE_DEF;
1250	coro->flags = CF_NEW;	1437	coro->flags = CF_NEW;
1251		1438
1252	if (coro_first) coro_first->prev = coro;	1439	if (coro_first) coro_first->prev = coro;
1253	coro->next = coro_first;	1440	coro->next = coro_first;
1254	coro_first = coro;	1441	coro_first = coro;
1255		1442
1256	coro->hv = hv = newHV ();	1443	coro->hv = hv = newHV ();
1257	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1444	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1258	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1445	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1259		1446
		1447	av_extend (coro->args, items - 1);
1260	for (i = 1; i < items; i++)	1448	for (i = 1; i < items; i++)
1261	av_push (coro->args, newSVsv (ST (i)));	1449	av_push (coro->args, newSVsv (ST (i)));
1262	}	1450	}
1263	OUTPUT:	1451	OUTPUT:
1264	RETVAL	1452	RETVAL
1265		1453
1266	int	1454	# these not obviously related functions are all rolled into the same xs
1267	save (SV *coro, int new_save = -1)	1455	# function to increase chances that they all will call transfer with the same
1268	CODE:	1456	# stack offset
1269	RETVAL = api_save (coro, new_save);
1270	OUTPUT:
1271	RETVAL
1272
1273	int
1274	save_also (SV *coro_sv, int save_also)
1275	CODE:
1276	{
1277	struct coro *coro = SvSTATE (coro_sv);
1278	RETVAL = coro->save;
1279	coro->save \|= save_also;
1280	}
1281	OUTPUT:
1282	RETVAL
1283
1284	void	1457	void
1285	_set_stacklevel (...)	1458	_set_stacklevel (...)
1286	ALIAS:	1459	ALIAS:
1287	Coro::State::transfer = 1	1460	Coro::State::transfer = 1
1288	Coro::schedule = 2	1461	Coro::schedule = 2
…		…
1322	}	1495	}
1323		1496
1324	BARRIER;	1497	BARRIER;
1325	TRANSFER (ta);	1498	TRANSFER (ta);
1326		1499
1327	if (GIMME_V != G_VOID && ta.next != ta.prev)	1500	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1328	XSRETURN_YES;	1501	XSRETURN_YES;
1329	}	1502	}
1330		1503
1331	bool	1504	bool
1332	_destroy (SV *coro_sv)	1505	_destroy (SV *coro_sv)
…		…
1374	if (coro->hv)	1547	if (coro->hv)
1375	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));	1548	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1376	}	1549	}
1377		1550
1378	void	1551	void
1379	_eval (Coro::State coro, SV *coderef)	1552	call (Coro::State coro, SV *coderef)
		1553	ALIAS:
		1554	eval = 1
1380	CODE:	1555	CODE:
1381	{	1556	{
1382	if (coro->mainstack)	1557	if (coro->mainstack)
1383	{	1558	{
1384	struct coro temp;	1559	struct coro temp;
1385	Zero (&temp, 1, struct coro);	1560	Zero (&temp, 1, struct coro);
1386	temp.save = CORO_SAVE_ALL;
1387		1561
1388	if (!(coro->flags & CF_RUNNING))	1562	if (!(coro->flags & CF_RUNNING))
1389	{	1563	{
1390	save_perl (aTHX_ &temp);	1564	save_perl (aTHX_ &temp);
1391	load_perl (aTHX_ coro);	1565	load_perl (aTHX_ coro);
…		…
1395	dSP;	1569	dSP;
1396	ENTER;	1570	ENTER;
1397	SAVETMPS;	1571	SAVETMPS;
1398	PUSHMARK (SP);	1572	PUSHMARK (SP);
1399	PUTBACK;	1573	PUTBACK;
		1574	if (ix)
		1575	eval_sv (coderef, 0);
		1576	else
1400	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1577	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1401	SPAGAIN;	1578	SPAGAIN;
1402	FREETMPS;	1579	FREETMPS;
1403	LEAVE;	1580	LEAVE;
1404	PUTBACK;	1581	PUTBACK;
1405	}	1582	}
…		…
1409	save_perl (aTHX_ coro);	1586	save_perl (aTHX_ coro);
1410	load_perl (aTHX_ &temp);	1587	load_perl (aTHX_ &temp);
1411	}	1588	}
1412	}	1589	}
1413	}	1590	}
1414		1591
1415	SV *	1592	SV *
1416	is_ready (Coro::State coro)	1593	is_ready (Coro::State coro)
1417	PROTOTYPE: $	1594	PROTOTYPE: $
1418	ALIAS:	1595	ALIAS:
1419	is_ready = CF_READY	1596	is_ready = CF_READY
…		…
1423	CODE:	1600	CODE:
1424	RETVAL = boolSV (coro->flags & ix);	1601	RETVAL = boolSV (coro->flags & ix);
1425	OUTPUT:	1602	OUTPUT:
1426	RETVAL	1603	RETVAL
1427		1604
		1605	void
		1606	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1607
		1608	SV *
		1609	has_stack (Coro::State coro)
		1610	PROTOTYPE: $
		1611	CODE:
		1612	RETVAL = boolSV (!!coro->cctx);
		1613	OUTPUT:
		1614	RETVAL
		1615
		1616	int
		1617	is_traced (Coro::State coro)
		1618	PROTOTYPE: $
		1619	CODE:
		1620	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1621	OUTPUT:
		1622	RETVAL
		1623
1428	IV	1624	IV
1429	rss (Coro::State coro)	1625	rss (Coro::State coro)
1430	PROTOTYPE: $	1626	PROTOTYPE: $
		1627	ALIAS:
		1628	usecount = 1
1431	CODE:	1629	CODE:
1432	RETVAL = coro_rss (coro);	1630	switch (ix)
		1631	{
		1632	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1633	case 1: RETVAL = coro->usecount; break;
		1634	}
1433	OUTPUT:	1635	OUTPUT:
1434	RETVAL	1636	RETVAL
1435		1637
1436		1638
1437	MODULE = Coro::State PACKAGE = Coro	1639	MODULE = Coro::State PACKAGE = Coro
1438		1640
1439	BOOT:	1641	BOOT:
1440	{	1642	{
1441	int i;	1643	int i;
		1644
		1645	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1646	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1647	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1648
		1649	coro_current = get_sv ("Coro::current", FALSE);
		1650	SvREADONLY_on (coro_current);
1442		1651
1443	coro_stash = gv_stashpv ("Coro", TRUE);	1652	coro_stash = gv_stashpv ("Coro", TRUE);
1444		1653
1445	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1654	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1446	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1655	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1447	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1656	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1448	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1657	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1449	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1658	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1450	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1659	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1451		1660
1452	coro_current = get_sv ("Coro::current", FALSE);
1453	SvREADONLY_on (coro_current);
1454
1455	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1661	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1456	coro_ready[i] = newAV ();	1662	coro_ready[i] = newAV ();
1457		1663
1458	{	1664	{
1459	SV *sv = perl_get_sv("Coro::API", 1);	1665	SV *sv = perl_get_sv("Coro::API", 1);
1460		1666
1461	coroapi.schedule = api_schedule;	1667	coroapi.schedule = api_schedule;
1462	coroapi.save = api_save;
1463	coroapi.cede = api_cede;	1668	coroapi.cede = api_cede;
1464	coroapi.cede_notself = api_cede_notself;	1669	coroapi.cede_notself = api_cede_notself;
1465	coroapi.ready = api_ready;	1670	coroapi.ready = api_ready;
1466	coroapi.is_ready = api_is_ready;	1671	coroapi.is_ready = api_is_ready;
1467	coroapi.nready = &coro_nready;	1672	coroapi.nready = &coro_nready;
…		…
1516	CODE:	1721	CODE:
1517	RETVAL = coro_nready;	1722	RETVAL = coro_nready;
1518	OUTPUT:	1723	OUTPUT:
1519	RETVAL	1724	RETVAL
1520		1725
		1726	# for async_pool speedup
		1727	void
		1728	_pool_1 (SV *cb)
		1729	CODE:
		1730	{
		1731	struct coro *coro = SvSTATE (coro_current);
		1732	HV hv = (HV )SvRV (coro_current);
		1733	AV *defav = GvAV (PL_defgv);
		1734	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1735	AV *invoke_av;
		1736	int i, len;
		1737
		1738	if (!invoke)
		1739	croak ("\3terminate\2\n");
		1740
		1741	SvREFCNT_dec (coro->saved_deffh);
		1742	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1743
		1744	hv_store (hv, "desc", sizeof ("desc") - 1,
		1745	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1746
		1747	invoke_av = (AV *)SvRV (invoke);
		1748	len = av_len (invoke_av);
		1749
		1750	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1751
		1752	if (len > 0)
		1753	{
		1754	av_fill (defav, len - 1);
		1755	for (i = 0; i < len; ++i)
		1756	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1757	}
		1758
		1759	SvREFCNT_dec (invoke);
		1760	}
		1761
		1762	void
		1763	_pool_2 (SV *cb)
		1764	CODE:
		1765	{
		1766	struct coro *coro = SvSTATE (coro_current);
		1767
		1768	sv_setsv (cb, &PL_sv_undef);
		1769
		1770	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1771	coro->saved_deffh = 0;
		1772
		1773	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1774	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1775	croak ("\3terminate\2\n");
		1776
		1777	av_clear (GvAV (PL_defgv));
		1778	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1779	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1780
		1781	coro->prio = 0;
		1782
		1783	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1784	api_trace (coro_current, 0);
		1785
		1786	av_push (av_async_pool, newSVsv (coro_current));
		1787	}
		1788
		1789
1521	MODULE = Coro::State PACKAGE = Coro::AIO	1790	MODULE = Coro::State PACKAGE = Coro::AIO
1522		1791
1523	SV *	1792	SV *
1524	_get_state ()	1793	_get_state ()
1525	CODE:	1794	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.158 by root, Fri Sep 21 02:23:48 2007 UTC vs. Revision 1.194 by root, Sat Oct 6 00:08:04 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.158 by root, Fri Sep 21 02:23:48 2007 UTC vs.
Revision 1.194 by root, Sat Oct 6 00:08:04 2007 UTC