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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.169 by root, Thu Sep 27 16:25:10 2007 UTC vs.
Revision 1.199 by root, Sun Oct 7 13:53:37 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 /
		153	static SV *sv_diehook;
		154	static SV *sv_warnhook;
136		155
137	/* async_pool helper stuff */	156	/* async_pool helper stuff */
138	static SV *sv_pool_rss;	157	static SV *sv_pool_rss;
139	static SV *sv_pool_size;	158	static SV *sv_pool_size;
140	static AV *av_async_pool;	159	static AV *av_async_pool;
…		…
176	CF_READY = 0x0002, /* coroutine is ready */	195	CF_READY = 0x0002, /* coroutine is ready */
177	CF_NEW = 0x0004, /* has never been switched to */	196	CF_NEW = 0x0004, /* has never been switched to */
178	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	197	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
179	};	198	};
180		199
		200	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		201	typedef struct {
		202	SV *defsv;
		203	AV *defav;
		204	SV *errsv;
		205	SV *irsgv;
		206	#define VAR(name,type) type name;
		207	# include "state.h"
		208	#undef VAR
		209	} perl_slots;
		210
		211	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		212
181	/* this is a structure representing a perl-level coroutine */	213	/* this is a structure representing a perl-level coroutine */
182	struct coro {	214	struct coro {
183	/* the c coroutine allocated to this perl coroutine, if any */	215	/* the c coroutine allocated to this perl coroutine, if any */
184	coro_cctx *cctx;	216	coro_cctx *cctx;
185		217
		218	/* process data */
		219	AV *mainstack;
		220	perl_slots slot; / basically the saved sp */
		221
186	/* data associated with this coroutine (initial args) */	222	/* data associated with this coroutine (initial args) */
187	AV *args;	223	AV *args;
188	int refcnt;	224	int refcnt;
189	int save; /* CORO_SAVE flags */
190	int flags; /* CF_ flags */	225	int flags; /* CF_ flags */
191		226
192	/* optionally saved, might be zero */	227	/* statistics */
193	AV defav; / @_ */	228	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		229
204	/* coro process data */	230	/* coro process data */
205	int prio;	231	int prio;
		232	SV *throw;
		233
		234	/* async_pool */
		235	SV *saved_deffh;
206		236
207	/* linked list */	237	/* linked list */
208	struct coro next, prev;	238	struct coro next, prev;
209	HV hv; / the perl hash associated with this coro, if any */	239	HV hv; / the perl hash associated with this coro, if any */
210	};	240	};
…		…
226	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	256	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
227	static int coro_nready;	257	static int coro_nready;
228	static struct coro *coro_first;	258	static struct coro *coro_first;
229		259
230	/ lowlevel stuff ********************************************************/	260	/ lowlevel stuff ********************************************************/
		261
		262	static SV *
		263	coro_get_sv (const char *name, int create)
		264	{
		265	#if PERL_VERSION_ATLEAST (5,9,0)
		266	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		267	get_sv (name, create);
		268	#endif
		269	return get_sv (name, create);
		270	}
		271
		272	static SV *
		273	coro_get_av (const char *name, int create)
		274	{
		275	#if PERL_VERSION_ATLEAST (5,9,0)
		276	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		277	get_av (name, create);
		278	#endif
		279	return get_av (name, create);
		280	}
231		281
232	static AV *	282	static AV *
233	coro_clone_padlist (pTHX_ CV *cv)	283	coro_clone_padlist (pTHX_ CV *cv)
234	{	284	{
235	AV *padlist = CvPADLIST (cv);	285	AV *padlist = CvPADLIST (cv);
…		…
308	MAGIC *mg;	358	MAGIC *mg;
309		359
310	if (SvROK (coro))	360	if (SvROK (coro))
311	coro = SvRV (coro);	361	coro = SvRV (coro);
312		362
		363	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		364	croak ("Coro::State object required");
		365
313	stash = SvSTASH (coro);	366	stash = SvSTASH (coro);
314	if (stash != coro_stash && stash != coro_state_stash)	367	if (expect_false (stash != coro_stash && stash != coro_state_stash))
315	{	368	{
316	/* very slow, but rare, check */	369	/* very slow, but rare, check */
317	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	370	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
318	croak ("Coro::State object required");	371	croak ("Coro::State object required");
319	}	372	}
…		…
329	get_padlist (pTHX_ CV *cv)	382	get_padlist (pTHX_ CV *cv)
330	{	383	{
331	MAGIC *mg = CORO_MAGIC (cv);	384	MAGIC *mg = CORO_MAGIC (cv);
332	AV *av;	385	AV *av;
333		386
334	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	387	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
335	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	388	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
336	else	389	else
337	{	390	{
338	#if CORO_PREFER_PERL_FUNCTIONS	391	#if CORO_PREFER_PERL_FUNCTIONS
339	/* this is probably cleaner, but also slower? */	392	/* this is probably cleaner, but also slower? */
…		…
351	put_padlist (pTHX_ CV *cv)	404	put_padlist (pTHX_ CV *cv)
352	{	405	{
353	MAGIC *mg = CORO_MAGIC (cv);	406	MAGIC *mg = CORO_MAGIC (cv);
354	AV *av;	407	AV *av;
355		408
356	if (!mg)	409	if (expect_false (!mg))
357	{	410	{
358	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	411	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
359	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	412	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
360	mg->mg_virtual = &vtbl_coro;	413	mg->mg_virtual = &vtbl_coro;
361	mg->mg_obj = (SV *)newAV ();	414	mg->mg_obj = (SV *)newAV ();
362	}	415	}
363		416
364	av = (AV *)mg->mg_obj;	417	av = (AV *)mg->mg_obj;
365		418
366	if (AvFILLp (av) >= AvMAX (av))	419	if (expect_false (AvFILLp (av) >= AvMAX (av)))
367	av_extend (av, AvMAX (av) + 1);	420	av_extend (av, AvMAX (av) + 1);
368		421
369	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	422	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
370	}	423	}
371		424
372	/ load & save, init *****************************************************/	425	/ load & save, init *****************************************************/
373		426
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	427	static void
380	load_perl (pTHX_ Coro__State c)	428	load_perl (pTHX_ Coro__State c)
381	{	429	{
		430	perl_slots *slot = c->slot;
		431	c->slot = 0;
		432
		433	PL_mainstack = c->mainstack;
		434
		435	GvSV (PL_defgv) = slot->defsv;
		436	GvAV (PL_defgv) = slot->defav;
		437	GvSV (PL_errgv) = slot->errsv;
		438	GvSV (irsgv) = slot->irsgv;
		439
382	#define VAR(name,type) PL_ ## name = c->name;	440	#define VAR(name,type) PL_ ## name = slot->name;
383	# include "state.h"	441	# include "state.h"
384	#undef VAR	442	#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		443
406	{	444	{
407	dSP;	445	dSP;
		446
408	CV *cv;	447	CV *cv;
409		448
410	/* now do the ugly restore mess */	449	/* now do the ugly restore mess */
411	while ((cv = (CV *)POPs))	450	while (expect_true (cv = (CV *)POPs))
412	{	451	{
413	put_padlist (aTHX_ cv); /* mark this padlist as available */	452	put_padlist (aTHX_ cv); /* mark this padlist as available */
414	CvDEPTH (cv) = PTR2IV (POPs);	453	CvDEPTH (cv) = PTR2IV (POPs);
415	CvPADLIST (cv) = (AV *)POPs;	454	CvPADLIST (cv) = (AV *)POPs;
416	}	455	}
…		…
435		474
436	XPUSHs (Nullsv);	475	XPUSHs (Nullsv);
437	/* this loop was inspired by pp_caller */	476	/* this loop was inspired by pp_caller */
438	for (;;)	477	for (;;)
439	{	478	{
440	while (cxix >= 0)	479	while (expect_true (cxix >= 0))
441	{	480	{
442	PERL_CONTEXT *cx = &ccstk[cxix--];	481	PERL_CONTEXT *cx = &ccstk[cxix--];
443		482
444	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	483	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
445	{	484	{
446	CV *cv = cx->blk_sub.cv;	485	CV *cv = cx->blk_sub.cv;
447		486
448	if (CvDEPTH (cv))	487	if (expect_true (CvDEPTH (cv)))
449	{	488	{
450	EXTEND (SP, 3);	489	EXTEND (SP, 3);
451	PUSHs ((SV *)CvPADLIST (cv));	490	PUSHs ((SV *)CvPADLIST (cv));
452	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	491	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
453	PUSHs ((SV *)cv);	492	PUSHs ((SV *)cv);
…		…
456	get_padlist (aTHX_ cv);	495	get_padlist (aTHX_ cv);
457	}	496	}
458	}	497	}
459	}	498	}
460		499
461	if (top_si->si_type == PERLSI_MAIN)	500	if (expect_true (top_si->si_type == PERLSI_MAIN))
462	break;	501	break;
463		502
464	top_si = top_si->si_prev;	503	top_si = top_si->si_prev;
465	ccstk = top_si->si_cxstack;	504	ccstk = top_si->si_cxstack;
466	cxix = top_si->si_cxix;	505	cxix = top_si->si_cxix;
467	}	506	}
468		507
469	PUTBACK;	508	PUTBACK;
470	}	509	}
471		510
472	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	511	/* allocate some space on the context stack for our purposes */
473	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	512	{
474	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	513	/* we manually unroll here, as usually 2 slots is enough */
475	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	514	int i;
476	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	515	if (SLOT_COUNT >= 1) CXINC;
		516	if (SLOT_COUNT >= 2) CXINC;
		517	if (SLOT_COUNT >= 3) CXINC;
		518	for (i = 3; i < SLOT_COUNT; ++i)
		519	CXINC;
477		520
		521	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		522	}
		523
		524	c->mainstack = PL_mainstack;
		525
		526	{
		527	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		528
		529	slot->defav = GvAV (PL_defgv);
		530	slot->defsv = DEFSV;
		531	slot->errsv = ERRSV;
		532	slot->irsgv = GvSV (irsgv);
		533
478	#define VAR(name,type)c->name = PL_ ## name;	534	#define VAR(name,type) slot->name = PL_ ## name;
479	# include "state.h"	535	# include "state.h"
480	#undef VAR	536	#undef VAR
		537	}
481	}	538	}
482		539
483	/*	540	/*
484	* allocate various perl stacks. This is an exact copy	541	* allocate various perl stacks. This is an exact copy
485	* of perl.c:init_stacks, except that it uses less memory	542	* of perl.c:init_stacks, except that it uses less memory
…		…
490	# define coro_init_stacks init_stacks	547	# define coro_init_stacks init_stacks
491	#else	548	#else
492	static void	549	static void
493	coro_init_stacks (pTHX)	550	coro_init_stacks (pTHX)
494	{	551	{
495	PL_curstackinfo = new_stackinfo(64, 6);	552	PL_curstackinfo = new_stackinfo(32, 8);
496	PL_curstackinfo->si_type = PERLSI_MAIN;	553	PL_curstackinfo->si_type = PERLSI_MAIN;
497	PL_curstack = PL_curstackinfo->si_stack;	554	PL_curstack = PL_curstackinfo->si_stack;
498	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	555	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
499		556
500	PL_stack_base = AvARRAY(PL_curstack);	557	PL_stack_base = AvARRAY(PL_curstack);
501	PL_stack_sp = PL_stack_base;	558	PL_stack_sp = PL_stack_base;
502	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	559	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
503		560
504	New(50,PL_tmps_stack,64,SV*);	561	New(50,PL_tmps_stack,32,SV*);
505	PL_tmps_floor = -1;	562	PL_tmps_floor = -1;
506	PL_tmps_ix = -1;	563	PL_tmps_ix = -1;
507	PL_tmps_max = 64;	564	PL_tmps_max = 32;
508		565
509	New(54,PL_markstack,16,I32);	566	New(54,PL_markstack,16,I32);
510	PL_markstack_ptr = PL_markstack;	567	PL_markstack_ptr = PL_markstack;
511	PL_markstack_max = PL_markstack + 16;	568	PL_markstack_max = PL_markstack + 16;
512		569
513	#ifdef SET_MARK_OFFSET	570	#ifdef SET_MARK_OFFSET
514	SET_MARK_OFFSET;	571	SET_MARK_OFFSET;
515	#endif	572	#endif
516		573
517	New(54,PL_scopestack,16,I32);	574	New(54,PL_scopestack,8,I32);
518	PL_scopestack_ix = 0;	575	PL_scopestack_ix = 0;
519	PL_scopestack_max = 16;	576	PL_scopestack_max = 8;
520		577
521	New(54,PL_savestack,64,ANY);	578	New(54,PL_savestack,24,ANY);
522	PL_savestack_ix = 0;	579	PL_savestack_ix = 0;
523	PL_savestack_max = 64;	580	PL_savestack_max = 24;
524		581
525	#if !PERL_VERSION_ATLEAST (5,9,0)	582	#if !PERL_VERSION_ATLEAST (5,9,0)
526	New(54,PL_retstack,4,OP*);	583	New(54,PL_retstack,4,OP*);
527	PL_retstack_ix = 0;	584	PL_retstack_ix = 0;
528	PL_retstack_max = 4;	585	PL_retstack_max = 4;
…		…
534	* destroy the stacks, the callchain etc...	591	* destroy the stacks, the callchain etc...
535	*/	592	*/
536	static void	593	static void
537	coro_destroy_stacks (pTHX)	594	coro_destroy_stacks (pTHX)
538	{	595	{
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)	596	while (PL_curstackinfo->si_next)
557	PL_curstackinfo = PL_curstackinfo->si_next;	597	PL_curstackinfo = PL_curstackinfo->si_next;
558		598
559	while (PL_curstackinfo)	599	while (PL_curstackinfo)
560	{	600	{
…		…
576	Safefree (PL_retstack);	616	Safefree (PL_retstack);
577	#endif	617	#endif
578	}	618	}
579		619
580	static size_t	620	static size_t
581	coro_rss (struct coro *coro)	621	coro_rss (pTHX_ struct coro *coro)
582	{	622	{
583	size_t rss = sizeof (coro);	623	size_t rss = sizeof (*coro);
584		624
585	if (coro->mainstack)	625	if (coro->mainstack)
586	{	626	{
		627	perl_slots tmp_slot;
		628	perl_slots *slot;
		629
587	if (coro->flags & CF_RUNNING)	630	if (coro->flags & CF_RUNNING)
588	{	631	{
		632	slot = &tmp_slot;
		633
589	#define VAR(name,type)coro->name = PL_ ## name;	634	#define VAR(name,type) slot->name = PL_ ## name;
590	# include "state.h"	635	# include "state.h"
591	#undef VAR	636	#undef VAR
592	}	637	}
		638	else
		639	slot = coro->slot;
593		640
594	rss += sizeof (coro->curstackinfo);	641	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);	642	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
597	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	643	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
598	rss += coro->tmps_max * sizeof (SV *);	644	rss += slot->tmps_max * sizeof (SV *);
599	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	645	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
600	rss += coro->scopestack_max * sizeof (I32);	646	rss += slot->scopestack_max * sizeof (I32);
601	rss += coro->savestack_max * sizeof (ANY);	647	rss += slot->savestack_max * sizeof (ANY);
602		648
603	#if !PERL_VERSION_ATLEAST (5,9,0)	649	#if !PERL_VERSION_ATLEAST (5,9,0)
604	rss += coro->retstack_max * sizeof (OP *);	650	rss += slot->retstack_max * sizeof (OP *);
605	#endif	651	#endif
606	}	652	}
607		653
608	return rss;	654	return rss;
609	}	655	}
610		656
611	/ coroutine stack handling **********************************************/	657	/ coroutine stack handling **********************************************/
612		658
613	static void	659	static void
614	setup_coro (pTHX_ struct coro *coro)	660	coro_setup (pTHX_ struct coro *coro)
615	{	661	{
616	/*	662	/*
617	* emulate part of the perl startup here.	663	* emulate part of the perl startup here.
618	*/	664	*/
619	coro_init_stacks (aTHX);	665	coro_init_stacks (aTHX);
…		…
621	PL_runops = RUNOPS_DEFAULT;	667	PL_runops = RUNOPS_DEFAULT;
622	PL_curcop = &PL_compiling;	668	PL_curcop = &PL_compiling;
623	PL_in_eval = EVAL_NULL;	669	PL_in_eval = EVAL_NULL;
624	PL_comppad = 0;	670	PL_comppad = 0;
625	PL_curpm = 0;	671	PL_curpm = 0;
		672	PL_curpad = 0;
626	PL_localizing = 0;	673	PL_localizing = 0;
627	PL_dirty = 0;	674	PL_dirty = 0;
628	PL_restartop = 0;	675	PL_restartop = 0;
		676	PL_diehook = SvREFCNT_inc (sv_diehook);
		677	PL_warnhook = SvREFCNT_inc (sv_warnhook);
		678
		679	GvSV (PL_defgv) = newSV (0);
		680	GvAV (PL_defgv) = coro->args; coro->args = 0;
		681	GvSV (PL_errgv) = newSV (0);
		682	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		683	PL_rs = newSVsv (GvSV (irsgv));
		684	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
629		685
630	{	686	{
631	dSP;	687	dSP;
632	LOGOP myop;	688	LOGOP myop;
633		689
634	SvREFCNT_dec (GvAV (PL_defgv));
635	GvAV (PL_defgv) = coro->args; coro->args = 0;
636
637	Zero (&myop, 1, LOGOP);	690	Zero (&myop, 1, LOGOP);
638	myop.op_next = Nullop;	691	myop.op_next = Nullop;
639	myop.op_flags = OPf_WANT_VOID;	692	myop.op_flags = OPf_WANT_VOID;
640		693
641	PUSHMARK (SP);	694	PUSHMARK (SP);
642	XPUSHs (av_shift (GvAV (PL_defgv)));	695	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
643	PUTBACK;	696	PUTBACK;
644	PL_op = (OP *)&myop;	697	PL_op = (OP *)&myop;
645	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	698	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
646	SPAGAIN;	699	SPAGAIN;
647	}	700	}
648		701
649	ENTER; /* necessary e.g. for dounwind */	702	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */
		703	}
		704
		705	static void
		706	coro_destroy (pTHX_ struct coro *coro)
		707	{
		708	if (!IN_DESTRUCT)
		709	{
		710	/* restore all saved variables and stuff */
		711	LEAVE_SCOPE (0);
		712	assert (PL_tmps_floor == -1);
		713
		714	/* free all temporaries */
		715	FREETMPS;
		716	assert (PL_tmps_ix == -1);
		717
		718	/* unwind all extra stacks */
		719	POPSTACK_TO (PL_mainstack);
		720
		721	/* unwind main stack */
		722	dounwind (-1);
		723	}
		724
		725	SvREFCNT_dec (GvSV (PL_defgv));
		726	SvREFCNT_dec (GvAV (PL_defgv));
		727	SvREFCNT_dec (GvSV (PL_errgv));
		728	SvREFCNT_dec (PL_defoutgv);
		729	SvREFCNT_dec (PL_rs);
		730	SvREFCNT_dec (GvSV (irsgv));
		731
		732	SvREFCNT_dec (PL_diehook);
		733	SvREFCNT_dec (PL_warnhook);
		734
		735	SvREFCNT_dec (coro->saved_deffh);
		736	SvREFCNT_dec (coro->throw);
		737
		738	coro_destroy_stacks (aTHX);
650	}	739	}
651		740
652	static void	741	static void
653	free_coro_mortal (pTHX)	742	free_coro_mortal (pTHX)
654	{	743	{
655	if (coro_mortal)	744	if (expect_true (coro_mortal))
656	{	745	{
657	SvREFCNT_dec (coro_mortal);	746	SvREFCNT_dec (coro_mortal);
658	coro_mortal = 0;	747	coro_mortal = 0;
659	}	748	}
660	}	749	}
…		…
669		758
670	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	759	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
671	{	760	{
672	PERL_ASYNC_CHECK ();	761	PERL_ASYNC_CHECK ();
673		762
674	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	763	if (cctx->flags & CC_TRACE_ALL)
675	{	764	{
676	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	765	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	{	766	{
		767	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		768	SV bot, top;
		769	AV av = newAV (); / return values */
720	SV **cb;	770	SV **cb;
721	runops_proc_t old_runops = PL_runops;
722	dSP;	771	dSP;
		772
		773	GV *gv = CvGV (cx->blk_sub.cv);
		774	SV *fullname = sv_2mortal (newSV (0));
		775	if (isGV (gv))
		776	gv_efullname3 (fullname, gv, 0);
		777
		778	bot = PL_stack_base + cx->blk_oldsp + 1;
		779	top = cx->blk_gimme == G_ARRAY ? SP + 1
		780	: cx->blk_gimme == G_SCALAR ? bot + 1
		781	: bot;
		782
		783	av_extend (av, top - bot);
		784	while (bot < top)
		785	av_push (av, SvREFCNT_inc (*bot++));
		786
		787	PL_runops = RUNOPS_DEFAULT;
723	ENTER;	788	ENTER;
724	SAVETMPS;	789	SAVETMPS;
725	EXTEND (SP, 3);	790	EXTEND (SP, 3);
726	PL_runops = RUNOPS_DEFAULT;	791	PUSHMARK (SP);
		792	PUSHs (&PL_sv_no);
		793	PUSHs (fullname);
		794	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		795	PUTBACK;
		796	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		797	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		798	SPAGAIN;
		799	FREETMPS;
		800	LEAVE;
		801	PL_runops = runops_trace;
		802	}
727		803
728	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	804	if (oldcop != PL_curcop)
		805	{
		806	oldcop = PL_curcop;
		807
		808	if (PL_curcop != &PL_compiling)
729	{	809	{
730	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	810	SV **cb;
731		811
732	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	812	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
733	{	813	{
		814	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		815
		816	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		817	{
		818	runops_proc_t old_runops = PL_runops;
		819	dSP;
734	GV *gv = CvGV (cx->blk_sub.cv);	820	GV *gv = CvGV (cx->blk_sub.cv);
735	SV *fullname = sv_2mortal (newSV (0));	821	SV *fullname = sv_2mortal (newSV (0));
		822
736	if (isGV (gv))	823	if (isGV (gv))
737	gv_efullname3 (fullname, gv, 0);	824	gv_efullname3 (fullname, gv, 0);
738		825
		826	PL_runops = RUNOPS_DEFAULT;
		827	ENTER;
		828	SAVETMPS;
		829	EXTEND (SP, 3);
		830	PUSHMARK (SP);
		831	PUSHs (&PL_sv_yes);
		832	PUSHs (fullname);
		833	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		834	PUTBACK;
		835	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		836	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		837	SPAGAIN;
		838	FREETMPS;
		839	LEAVE;
		840	PL_runops = runops_trace;
		841	}
		842
		843	oldcxix = cxstack_ix;
		844	}
		845
		846	if (cctx->flags & CC_TRACE_LINE)
		847	{
		848	dSP;
		849
		850	PL_runops = RUNOPS_DEFAULT;
		851	ENTER;
		852	SAVETMPS;
		853	EXTEND (SP, 3);
		854	PL_runops = RUNOPS_DEFAULT;
739	PUSHMARK (SP);	855	PUSHMARK (SP);
740	PUSHs (&PL_sv_yes);	856	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
741	PUSHs (fullname);	857	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;	858	PUTBACK;
744	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	859	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);	860	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
746	SPAGAIN;	861	SPAGAIN;
		862	FREETMPS;
		863	LEAVE;
		864	PL_runops = runops_trace;
747	}	865	}
748
749	oldcxix = cxstack_ix;
750	}	866	}
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	}	867	}
767	}	868	}
768	}	869	}
769		870
770	TAINT_NOT;	871	TAINT_NOT;
…		…
899	Safefree (cctx->sptr);	1000	Safefree (cctx->sptr);
900		1001
901	Safefree (cctx);	1002	Safefree (cctx);
902	}	1003	}
903		1004
		1005	/* wether this cctx should be destructed */
		1006	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		1007
904	static coro_cctx *	1008	static coro_cctx *
905	cctx_get (pTHX)	1009	cctx_get (pTHX)
906	{	1010	{
907	while (cctx_first)	1011	while (expect_true (cctx_first))
908	{	1012	{
909	coro_cctx *cctx = cctx_first;	1013	coro_cctx *cctx = cctx_first;
910	cctx_first = cctx->next;	1014	cctx_first = cctx->next;
911	--cctx_idle;	1015	--cctx_idle;
912		1016
913	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))	1017	if (expect_true (!CCTX_EXPIRED (cctx)))
914	return cctx;	1018	return cctx;
915		1019
916	cctx_destroy (cctx);	1020	cctx_destroy (cctx);
917	}	1021	}
918		1022
…		…
921		1025
922	static void	1026	static void
923	cctx_put (coro_cctx *cctx)	1027	cctx_put (coro_cctx *cctx)
924	{	1028	{
925	/* free another cctx if overlimit */	1029	/* free another cctx if overlimit */
926	if (cctx_idle >= MAX_IDLE_CCTX)	1030	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
927	{	1031	{
928	coro_cctx *first = cctx_first;	1032	coro_cctx *first = cctx_first;
929	cctx_first = first->next;	1033	cctx_first = first->next;
930	--cctx_idle;	1034	--cctx_idle;
931		1035
…		…
937	cctx_first = cctx;	1041	cctx_first = cctx;
938	}	1042	}
939		1043
940	/ coroutine switching ***************************************************/	1044	/ coroutine switching ***************************************************/
941		1045
942	/* never call directly, always through the coro_state_transfer global variable */	1046	static void
		1047	transfer_check (pTHX_ struct coro prev, struct coro next)
		1048	{
		1049	if (expect_true (prev != next))
		1050	{
		1051	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
		1052	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		1053
		1054	if (expect_false (next->flags & CF_RUNNING))
		1055	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		1056
		1057	if (expect_false (next->flags & CF_DESTROYED))
		1058	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		1059
		1060	if (
		1061	#if PERL_VERSION_ATLEAST (5,9,0)
		1062	expect_false (PL_parser)
		1063	#else
		1064	expect_false (PL_lex_state != LEX_NOTPARSING)
		1065	#endif
		1066	)
		1067	croak ("Coro::State::transfer called while parsing, but this is not supported");
		1068	}
		1069	}
		1070
		1071	/* always use the TRANSFER macro */
943	static void NOINLINE	1072	static void NOINLINE
944	transfer (pTHX_ struct coro prev, struct coro next)	1073	transfer (pTHX_ struct coro prev, struct coro next)
945	{	1074	{
946	dSTACKLEVEL;	1075	dSTACKLEVEL;
947		1076
948	/* sometimes transfer is only called to set idle_sp */	1077	/* sometimes transfer is only called to set idle_sp */
949	if (!next)	1078	if (expect_false (!next))
950	{	1079	{
951	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1080	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
952	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1081	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
953	}	1082	}
954	else if (prev != next)	1083	else if (expect_true (prev != next))
955	{	1084	{
956	coro_cctx *prev__cctx;	1085	coro_cctx *prev__cctx;
957		1086
958	if (prev->flags & CF_NEW)	1087	if (expect_false (prev->flags & CF_NEW))
959	{	1088	{
960	/* create a new empty context */	1089	/* create a new empty context */
961	Newz (0, prev->cctx, 1, coro_cctx);	1090	Newz (0, prev->cctx, 1, coro_cctx);
962	prev->flags &= ~CF_NEW;	1091	prev->flags &= ~CF_NEW;
963	prev->flags \|= CF_RUNNING;	1092	prev->flags \|= CF_RUNNING;
964	}	1093	}
965		1094
966	/TODO: must not croak here /
967	if (!prev->flags & CF_RUNNING)
968	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
969
970	if (next->flags & CF_RUNNING)
971	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
972
973	if (next->flags & CF_DESTROYED)
974	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
975
976	prev->flags &= ~CF_RUNNING;	1095	prev->flags &= ~CF_RUNNING;
977	next->flags \|= CF_RUNNING;	1096	next->flags \|= CF_RUNNING;
978		1097
979	LOCK;	1098	LOCK;
980		1099
981	if (next->flags & CF_NEW)	1100	if (expect_false (next->flags & CF_NEW))
982	{	1101	{
983	/* need to start coroutine */	1102	/* need to start coroutine */
984	next->flags &= ~CF_NEW;	1103	next->flags &= ~CF_NEW;
985	/* first get rid of the old state */	1104	/* first get rid of the old state */
986	save_perl (aTHX_ prev);	1105	save_perl (aTHX_ prev);
987	/* setup coroutine call */	1106	/* setup coroutine call */
988	setup_coro (aTHX_ next);	1107	coro_setup (aTHX_ next);
989	}	1108	}
990	else	1109	else
991	{	1110	{
992	/* coroutine already started */	1111	/* coroutine already started */
993	save_perl (aTHX_ prev);	1112	save_perl (aTHX_ prev);
…		…
995	}	1114	}
996		1115
997	prev__cctx = prev->cctx;	1116	prev__cctx = prev->cctx;
998		1117
999	/* possibly "free" the cctx */	1118	/* possibly "free" the cctx */
1000	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))	1119	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
1001	{	1120	{
1002	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1121	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1003	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1122	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1004		1123
1005	prev->cctx = 0;	1124	prev->cctx = 0;
1006		1125
		1126	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1127	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1128	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1129	next->cctx = cctx_get (aTHX);
		1130
1007	cctx_put (prev__cctx);	1131	cctx_put (prev__cctx);
1008	}	1132	}
1009		1133
		1134	++next->usecount;
		1135
1010	if (!next->cctx)	1136	if (expect_true (!next->cctx))
1011	next->cctx = cctx_get (aTHX);	1137	next->cctx = cctx_get (aTHX);
1012		1138
1013	if (prev__cctx != next->cctx)	1139	if (expect_false (prev__cctx != next->cctx))
1014	{	1140	{
1015	prev__cctx->top_env = PL_top_env;	1141	prev__cctx->top_env = PL_top_env;
1016	PL_top_env = next->cctx->top_env;	1142	PL_top_env = next->cctx->top_env;
1017	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1143	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1018	}	1144	}
1019		1145
1020	free_coro_mortal (aTHX);	1146	free_coro_mortal (aTHX);
1021	UNLOCK;	1147	UNLOCK;
		1148
		1149	if (expect_false (prev->throw \|\| next->throw))
		1150	{
		1151	struct coro *coro = SvSTATE (coro_current);
		1152
		1153	if (coro->throw)
		1154	{
		1155	SV *exception = coro->throw;
		1156	coro->throw = 0;
		1157	sv_setsv (ERRSV, exception);
		1158	croak (0);
		1159	}
		1160	}
1022	}	1161	}
1023	}	1162	}
1024		1163
1025	struct transfer_args	1164	struct transfer_args
1026	{	1165	{
1027	struct coro prev, next;	1166	struct coro prev, next;
1028	};	1167	};
1029		1168
1030	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1169	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1170	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1031		1171
1032	/ high level stuff ******************************************************/	1172	/ high level stuff ******************************************************/
1033		1173
1034	static int	1174	static int
1035	coro_state_destroy (pTHX_ struct coro *coro)	1175	coro_state_destroy (pTHX_ struct coro *coro)
…		…
1052		1192
1053	if (coro->mainstack && coro->mainstack != main_mainstack)	1193	if (coro->mainstack && coro->mainstack != main_mainstack)
1054	{	1194	{
1055	struct coro temp;	1195	struct coro temp;
1056		1196
1057	assert (!(coro->flags & CF_RUNNING));
1058
1059	Zero (&temp, 1, struct coro);
1060	temp.save = CORO_SAVE_ALL;
1061
1062	if (coro->flags & CF_RUNNING)	1197	if (coro->flags & CF_RUNNING)
1063	croak ("FATAL: tried to destroy currently running coroutine");	1198	croak ("FATAL: tried to destroy currently running coroutine");
1064		1199
1065	save_perl (aTHX_ &temp);	1200	save_perl (aTHX_ &temp);
1066	load_perl (aTHX_ coro);	1201	load_perl (aTHX_ coro);
1067		1202
1068	coro_destroy_stacks (aTHX);	1203	coro_destroy (aTHX_ coro);
1069		1204
1070	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1205	load_perl (aTHX_ &temp);
1071		1206
1072	coro->mainstack = 0;	1207	coro->slot = 0;
1073	}	1208	}
1074		1209
1075	cctx_destroy (coro->cctx);	1210	cctx_destroy (coro->cctx);
1076	SvREFCNT_dec (coro->args);	1211	SvREFCNT_dec (coro->args);
1077		1212
…		…
1123	static void	1258	static void
1124	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)	1259	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
1125	{	1260	{
1126	ta->prev = SvSTATE (prev_sv);	1261	ta->prev = SvSTATE (prev_sv);
1127	ta->next = SvSTATE (next_sv);	1262	ta->next = SvSTATE (next_sv);
		1263	TRANSFER_CHECK (*ta);
1128	}	1264	}
1129		1265
1130	static void	1266	static void
1131	api_transfer (SV prev_sv, SV next_sv)	1267	api_transfer (SV prev_sv, SV next_sv)
1132	{	1268	{
1133	dTHX;	1269	dTHX;
1134	struct transfer_args ta;	1270	struct transfer_args ta;
1135		1271
1136	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1272	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1137	TRANSFER (ta);	1273	TRANSFER (ta);
1138	}
1139
1140	static int
1141	api_save (SV *coro_sv, int new_save)
1142	{
1143	dTHX;
1144	struct coro *coro = SvSTATE (coro_sv);
1145	int old_save = coro->save;
1146
1147	if (new_save >= 0)
1148	coro->save = new_save;
1149
1150	return old_save;
1151	}	1274	}
1152		1275
1153	/ Coro ******************************************************************/	1276	/ Coro ******************************************************************/
1154		1277
1155	static void	1278	static void
…		…
1214	{	1337	{
1215	LOCK;	1338	LOCK;
1216	next_sv = coro_deq (aTHX_ PRIO_MIN);	1339	next_sv = coro_deq (aTHX_ PRIO_MIN);
1217		1340
1218	/* nothing to schedule: call the idle handler */	1341	/* nothing to schedule: call the idle handler */
1219	if (!next_sv)	1342	if (expect_false (!next_sv))
1220	{	1343	{
1221	dSP;	1344	dSP;
1222	UNLOCK;	1345	UNLOCK;
1223		1346
1224	ENTER;	1347	ENTER;
…		…
1234	}	1357	}
1235		1358
1236	ta->next = SvSTATE (next_sv);	1359	ta->next = SvSTATE (next_sv);
1237		1360
1238	/* cannot transfer to destroyed coros, skip and look for next */	1361	/* cannot transfer to destroyed coros, skip and look for next */
1239	if (ta->next->flags & CF_DESTROYED)	1362	if (expect_false (ta->next->flags & CF_DESTROYED))
1240	{	1363	{
1241	UNLOCK;	1364	UNLOCK;
1242	SvREFCNT_dec (next_sv);	1365	SvREFCNT_dec (next_sv);
1243	/* coro_nready is already taken care of by destroy */	1366	/* coro_nready is already taken care of by destroy */
1244	continue;	1367	continue;
…		…
1249	break;	1372	break;
1250	}	1373	}
1251		1374
1252	/* free this only after the transfer */	1375	/* free this only after the transfer */
1253	prev_sv = SvRV (coro_current);	1376	prev_sv = SvRV (coro_current);
1254	SvRV_set (coro_current, next_sv);
1255	ta->prev = SvSTATE (prev_sv);	1377	ta->prev = SvSTATE (prev_sv);
1256		1378	TRANSFER_CHECK (*ta);
1257	assert (ta->next->flags & CF_READY);	1379	assert (ta->next->flags & CF_READY);
1258	ta->next->flags &= ~CF_READY;	1380	ta->next->flags &= ~CF_READY;
		1381	SvRV_set (coro_current, next_sv);
1259		1382
1260	LOCK;	1383	LOCK;
1261	free_coro_mortal (aTHX);	1384	free_coro_mortal (aTHX);
1262	coro_mortal = prev_sv;	1385	coro_mortal = prev_sv;
1263	UNLOCK;	1386	UNLOCK;
…		…
1300	dTHX;	1423	dTHX;
1301	struct transfer_args ta;	1424	struct transfer_args ta;
1302		1425
1303	prepare_cede (aTHX_ &ta);	1426	prepare_cede (aTHX_ &ta);
1304		1427
1305	if (ta.prev != ta.next)	1428	if (expect_true (ta.prev != ta.next))
1306	{	1429	{
1307	TRANSFER (ta);	1430	TRANSFER (ta);
1308	return 1;	1431	return 1;
1309	}	1432	}
1310	else	1433	else
…		…
1324	}	1447	}
1325	else	1448	else
1326	return 0;	1449	return 0;
1327	}	1450	}
1328		1451
		1452	static void
		1453	api_trace (SV *coro_sv, int flags)
		1454	{
		1455	dTHX;
		1456	struct coro *coro = SvSTATE (coro_sv);
		1457
		1458	if (flags & CC_TRACE)
		1459	{
		1460	if (!coro->cctx)
		1461	coro->cctx = cctx_new ();
		1462	else if (!(coro->cctx->flags & CC_TRACE))
		1463	croak ("cannot enable tracing on coroutine with custom stack");
		1464
		1465	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1466	}
		1467	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1468	{
		1469	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1470
		1471	if (coro->flags & CF_RUNNING)
		1472	PL_runops = RUNOPS_DEFAULT;
		1473	else
		1474	coro->slot->runops = RUNOPS_DEFAULT;
		1475	}
		1476	}
		1477
1329	MODULE = Coro::State PACKAGE = Coro::State	1478	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1330		1479
1331	PROTOTYPES: DISABLE	1480	PROTOTYPES: DISABLE
1332		1481
1333	BOOT:	1482	BOOT:
1334	{	1483	{
1335	#ifdef USE_ITHREADS	1484	#ifdef USE_ITHREADS
1336	MUTEX_INIT (&coro_mutex);	1485	MUTEX_INIT (&coro_mutex);
1337	#endif	1486	#endif
1338	BOOT_PAGESIZE;	1487	BOOT_PAGESIZE;
		1488
		1489	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1490	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1491
		1492	sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);
		1493	sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);
		1494
		1495	if (!PL_diehook) PL_diehook = SvREFCNT_inc (sv_diehook);
		1496	if (!PL_warnhook) PL_warnhook = SvREFCNT_inc (sv_warnhook);
1339		1497
1340	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1498	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1341		1499
1342	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1500	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1343	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1501	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1344	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));	1502	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1345	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));	1503	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1346		1504
1347	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1348	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1349	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1350	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1351	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1352	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1353	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1354
1355	main_mainstack = PL_mainstack;	1505	main_mainstack = PL_mainstack;
1356	main_top_env = PL_top_env;	1506	main_top_env = PL_top_env;
1357		1507
1358	while (main_top_env->je_prev)	1508	while (main_top_env->je_prev)
1359	main_top_env = main_top_env->je_prev;	1509	main_top_env = main_top_env->je_prev;
…		…
1371	struct coro *coro;	1521	struct coro *coro;
1372	HV *hv;	1522	HV *hv;
1373	int i;	1523	int i;
1374		1524
1375	Newz (0, coro, 1, struct coro);	1525	Newz (0, coro, 1, struct coro);
1376	coro->args = newAV ();	1526	coro->args = newAV ();
1377	coro->save = CORO_SAVE_DEF;
1378	coro->flags = CF_NEW;	1527	coro->flags = CF_NEW;
1379		1528
1380	if (coro_first) coro_first->prev = coro;	1529	if (coro_first) coro_first->prev = coro;
1381	coro->next = coro_first;	1530	coro->next = coro_first;
1382	coro_first = coro;	1531	coro_first = coro;
1383		1532
1384	coro->hv = hv = newHV ();	1533	coro->hv = hv = newHV ();
1385	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1534	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1386	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1535	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1387		1536
		1537	av_extend (coro->args, items - 1);
1388	for (i = 1; i < items; i++)	1538	for (i = 1; i < items; i++)
1389	av_push (coro->args, newSVsv (ST (i)));	1539	av_push (coro->args, newSVsv (ST (i)));
1390	}	1540	}
1391	OUTPUT:	1541	OUTPUT:
1392	RETVAL	1542	RETVAL
1393		1543
1394	int	1544	# these not obviously related functions are all rolled into the same xs
1395	save (SV *coro, int new_save = -1)	1545	# function to increase chances that they all will call transfer with the same
1396	CODE:	1546	# stack offset
1397	RETVAL = api_save (coro, new_save);
1398	OUTPUT:
1399	RETVAL
1400
1401	int
1402	save_also (SV *coro_sv, int save_also)
1403	CODE:
1404	{
1405	struct coro *coro = SvSTATE (coro_sv);
1406	RETVAL = coro->save;
1407	coro->save \|= save_also;
1408	}
1409	OUTPUT:
1410	RETVAL
1411
1412	void	1547	void
1413	_set_stacklevel (...)	1548	_set_stacklevel (...)
1414	ALIAS:	1549	ALIAS:
1415	Coro::State::transfer = 1	1550	Coro::State::transfer = 1
1416	Coro::schedule = 2	1551	Coro::schedule = 2
…		…
1450	}	1585	}
1451		1586
1452	BARRIER;	1587	BARRIER;
1453	TRANSFER (ta);	1588	TRANSFER (ta);
1454		1589
1455	if (GIMME_V != G_VOID && ta.next != ta.prev)	1590	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1456	XSRETURN_YES;	1591	XSRETURN_YES;
1457	}	1592	}
1458		1593
1459	bool	1594	bool
1460	_destroy (SV *coro_sv)	1595	_destroy (SV *coro_sv)
…		…
1510	CODE:	1645	CODE:
1511	{	1646	{
1512	if (coro->mainstack)	1647	if (coro->mainstack)
1513	{	1648	{
1514	struct coro temp;	1649	struct coro temp;
1515	Zero (&temp, 1, struct coro);
1516	temp.save = CORO_SAVE_ALL;
1517		1650
1518	if (!(coro->flags & CF_RUNNING))	1651	if (!(coro->flags & CF_RUNNING))
1519	{	1652	{
1520	save_perl (aTHX_ &temp);	1653	save_perl (aTHX_ &temp);
1521	load_perl (aTHX_ coro);	1654	load_perl (aTHX_ coro);
…		…
1525	dSP;	1658	dSP;
1526	ENTER;	1659	ENTER;
1527	SAVETMPS;	1660	SAVETMPS;
1528	PUSHMARK (SP);	1661	PUSHMARK (SP);
1529	PUTBACK;	1662	PUTBACK;
		1663
1530	if (ix)	1664	if (ix)
1531	eval_sv (coderef, 0);	1665	eval_sv (coderef, 0);
1532	else	1666	else
1533	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1667	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1668
1534	SPAGAIN;	1669	SPAGAIN;
1535	FREETMPS;	1670	FREETMPS;
1536	LEAVE;	1671	LEAVE;
1537	PUTBACK;	1672	PUTBACK;
1538	}	1673	}
…		…
1542	save_perl (aTHX_ coro);	1677	save_perl (aTHX_ coro);
1543	load_perl (aTHX_ &temp);	1678	load_perl (aTHX_ &temp);
1544	}	1679	}
1545	}	1680	}
1546	}	1681	}
1547		1682
1548	SV *	1683	SV *
1549	is_ready (Coro::State coro)	1684	is_ready (Coro::State coro)
1550	PROTOTYPE: $	1685	PROTOTYPE: $
1551	ALIAS:	1686	ALIAS:
1552	is_ready = CF_READY	1687	is_ready = CF_READY
…		…
1557	RETVAL = boolSV (coro->flags & ix);	1692	RETVAL = boolSV (coro->flags & ix);
1558	OUTPUT:	1693	OUTPUT:
1559	RETVAL	1694	RETVAL
1560		1695
1561	void	1696	void
1562	trace (Coro::State coro, int flags = CC_TRACE \| CC_TRACE_SUB)	1697	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1563	CODE:
1564	if (flags & CC_TRACE)
1565	{
1566	if (!coro->cctx)
1567	coro->cctx = cctx_new ();
1568	else if (!(coro->cctx->flags & CC_TRACE))
1569	croak ("cannot enable tracing on coroutine with custom stack");
1570
1571	coro->cctx->flags \|= flags & (CC_TRACE \| CC_TRACE_ALL);
1572	}
1573	else
1574	if (coro->cctx && coro->cctx->flags & CC_TRACE)
1575	{
1576	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1577	coro->cctx->flags \|= CC_NOREUSE;
1578
1579	if (coro->flags & CF_RUNNING)
1580	PL_runops = RUNOPS_DEFAULT;
1581	else
1582	coro->runops = RUNOPS_DEFAULT;
1583	}
1584		1698
1585	SV *	1699	SV *
1586	has_stack (Coro::State coro)	1700	has_stack (Coro::State coro)
1587	PROTOTYPE: $	1701	PROTOTYPE: $
1588	CODE:	1702	CODE:
…		…
1599	RETVAL	1713	RETVAL
1600		1714
1601	IV	1715	IV
1602	rss (Coro::State coro)	1716	rss (Coro::State coro)
1603	PROTOTYPE: $	1717	PROTOTYPE: $
		1718	ALIAS:
		1719	usecount = 1
1604	CODE:	1720	CODE:
1605	RETVAL = coro_rss (coro);	1721	switch (ix)
		1722	{
		1723	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1724	case 1: RETVAL = coro->usecount; break;
		1725	}
1606	OUTPUT:	1726	OUTPUT:
1607	RETVAL	1727	RETVAL
1608		1728
1609		1729
1610	MODULE = Coro::State PACKAGE = Coro	1730	MODULE = Coro::State PACKAGE = Coro
1611		1731
1612	BOOT:	1732	BOOT:
1613	{	1733	{
1614	int i;	1734	int i;
1615		1735
1616	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);	1736	sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1617	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);	1737	sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1618	av_async_pool = get_av ("Coro::async_pool", TRUE);	1738	av_async_pool = coro_get_av ("Coro::async_pool", TRUE);
1619		1739
1620	coro_current = get_sv ("Coro::current", FALSE);	1740	coro_current = coro_get_sv ("Coro::current", FALSE);
1621	SvREADONLY_on (coro_current);	1741	SvREADONLY_on (coro_current);
1622		1742
1623	coro_stash = gv_stashpv ("Coro", TRUE);	1743	coro_stash = gv_stashpv ("Coro", TRUE);
1624		1744
1625	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1745	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1626	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1746	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1627	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1747	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1628	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1748	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1631		1751
1632	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1752	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1633	coro_ready[i] = newAV ();	1753	coro_ready[i] = newAV ();
1634		1754
1635	{	1755	{
1636	SV *sv = perl_get_sv("Coro::API", 1);	1756	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1757	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1637		1758
1638	coroapi.schedule = api_schedule;	1759	coroapi.schedule = api_schedule;
1639	coroapi.save = api_save;
1640	coroapi.cede = api_cede;	1760	coroapi.cede = api_cede;
1641	coroapi.cede_notself = api_cede_notself;	1761	coroapi.cede_notself = api_cede_notself;
1642	coroapi.ready = api_ready;	1762	coroapi.ready = api_ready;
1643	coroapi.is_ready = api_is_ready;	1763	coroapi.is_ready = api_is_ready;
1644	coroapi.nready = &coro_nready;	1764	coroapi.nready = &coro_nready;
…		…
1693	CODE:	1813	CODE:
1694	RETVAL = coro_nready;	1814	RETVAL = coro_nready;
1695	OUTPUT:	1815	OUTPUT:
1696	RETVAL	1816	RETVAL
1697		1817
		1818	void
		1819	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1820	PROTOTYPE: $;$
		1821	CODE:
		1822	SvREFCNT_dec (self->throw);
		1823	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1824
1698	# for async_pool speedup	1825	# for async_pool speedup
1699	void	1826	void
1700	_pool_1 (SV *cb)	1827	_pool_1 (SV *cb)
1701	CODE:	1828	CODE:
1702	{	1829	{
1703	int i, len;	1830	struct coro *coro = SvSTATE (coro_current);
1704	HV hv = (HV )SvRV (coro_current);	1831	HV hv = (HV )SvRV (coro_current);
1705	AV *defav = GvAV (PL_defgv);	1832	AV *defav = GvAV (PL_defgv);
1706	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1833	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1707	AV *invoke_av;	1834	AV *invoke_av;
		1835	int i, len;
1708		1836
1709	if (!invoke)	1837	if (!invoke)
1710	croak ("\3terminate\2\n");	1838	croak ("\3async_pool terminate\2\n");
		1839
		1840	SvREFCNT_dec (coro->saved_deffh);
		1841	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1711		1842
1712	hv_store (hv, "desc", sizeof ("desc") - 1,	1843	hv_store (hv, "desc", sizeof ("desc") - 1,
1713	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	1844	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1714		1845
1715	invoke_av = (AV *)SvRV (invoke);	1846	invoke_av = (AV *)SvRV (invoke);
…		…
1733	{	1864	{
1734	struct coro *coro = SvSTATE (coro_current);	1865	struct coro *coro = SvSTATE (coro_current);
1735		1866
1736	sv_setsv (cb, &PL_sv_undef);	1867	sv_setsv (cb, &PL_sv_undef);
1737		1868
		1869	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1870	coro->saved_deffh = 0;
		1871
1738	if (coro_rss (coro) > SvIV (sv_pool_rss)	1872	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1739	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	1873	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1740	croak ("\3terminate\2\n");	1874	croak ("\3async_pool terminate\2\n");
1741		1875
1742	av_clear (GvAV (PL_defgv));	1876	av_clear (GvAV (PL_defgv));
1743	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	1877	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1744	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	1878	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1745	coro->save = CORO_SAVE_DEF;	1879
1746	coro->prio = 0;	1880	coro->prio = 0;
		1881
		1882	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1883	api_trace (coro_current, 0);
		1884
1747	av_push (av_async_pool, newSVsv (coro_current));	1885	av_push (av_async_pool, newSVsv (coro_current));
1748	}	1886	}
1749		1887
1750		1888
1751	MODULE = Coro::State PACKAGE = Coro::AIO	1889	MODULE = Coro::State PACKAGE = Coro::AIO

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing Coro/Coro/State.xs (file contents): Revision 1.169 by root, Thu Sep 27 16:25:10 2007 UTC vs. Revision 1.199 by root, Sun Oct 7 13:53:37 2007 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.169 by root, Thu Sep 27 16:25:10 2007 UTC vs.
Revision 1.199 by root, Sun Oct 7 13:53:37 2007 UTC