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/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 1.200 by root, Sun Oct 7 15:08:23 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
…		…
116	#else	130	#else
117	# define LOCK (void)0	131	# define LOCK (void)0
118	# define UNLOCK (void)0	132	# define UNLOCK (void)0
119	#endif	133	#endif
120		134
		135	#define strpair(const) const, sizeof (const) - 1
		136
121	/* helper storage struct for Coro::AIO */	137	/* helper storage struct for Coro::AIO */
122	struct io_state	138	struct io_state
123	{	139	{
124	int errorno;	140	int errorno;
125	I32 laststype;	141	I32 laststype;
…		…
132	static AV *main_mainstack; /* used to differentiate between $main and others */	148	static AV *main_mainstack; /* used to differentiate between $main and others */
133	static JMPENV *main_top_env;	149	static JMPENV *main_top_env;
134	static HV *coro_state_stash, *coro_stash;	150	static HV *coro_state_stash, *coro_stash;
135	static SV *coro_mortal; /* will be freed after next transfer */	151	static SV *coro_mortal; /* will be freed after next transfer */
136		152
		153	static GV *irsgv; /* $/ */
		154	static GV *stdoutgv; /* *STDOUT */
		155
		156	static HV *hv_sig; /* %SIG */
		157	static SV *sv_diehook;
		158	static SV *sv_warnhook;
		159
		160	/* async_pool helper stuff */
		161	static SV *sv_pool_rss;
		162	static SV *sv_pool_size;
		163	static AV *av_async_pool;
		164
137	static struct coro_cctx *cctx_first;	165	static struct coro_cctx *cctx_first;
138	static int cctx_count, cctx_idle;	166	static int cctx_count, cctx_idle;
		167
		168	enum {
		169	CC_MAPPED = 0x01,
		170	CC_NOREUSE = 0x02, /* throw this away after tracing */
		171	CC_TRACE = 0x04,
		172	CC_TRACE_SUB = 0x08, /* trace sub calls */
		173	CC_TRACE_LINE = 0x10, /* trace each statement */
		174	CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE,
		175	};
139		176
140	/* this is a structure representing a c-level coroutine */	177	/* this is a structure representing a c-level coroutine */
141	typedef struct coro_cctx {	178	typedef struct coro_cctx {
142	struct coro_cctx *next;	179	struct coro_cctx *next;
143		180
…		…
152	coro_context cctx;	189	coro_context cctx;
153		190
154	#if CORO_USE_VALGRIND	191	#if CORO_USE_VALGRIND
155	int valgrind_id;	192	int valgrind_id;
156	#endif	193	#endif
157	char inuse, mapped;	194	unsigned char flags;
158	} coro_cctx;	195	} coro_cctx;
159		196
160	enum {	197	enum {
161	CF_RUNNING = 0x0001, /* coroutine is running */	198	CF_RUNNING = 0x0001, /* coroutine is running */
162	CF_READY = 0x0002, /* coroutine is ready */	199	CF_READY = 0x0002, /* coroutine is ready */
163	CF_NEW = 0x0004, /* has never been switched to */	200	CF_NEW = 0x0004, /* has never been switched to */
164	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	201	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
165	};	202	};
166		203
		204	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		205	typedef struct {
		206	SV *defsv;
		207	AV *defav;
		208	SV *errsv;
		209	SV *irsgv;
		210	#define VAR(name,type) type name;
		211	# include "state.h"
		212	#undef VAR
		213	} perl_slots;
		214
		215	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		216
167	/* this is a structure representing a perl-level coroutine */	217	/* this is a structure representing a perl-level coroutine */
168	struct coro {	218	struct coro {
169	/* the c coroutine allocated to this perl coroutine, if any */	219	/* the c coroutine allocated to this perl coroutine, if any */
170	coro_cctx *cctx;	220	coro_cctx *cctx;
171		221
		222	/* process data */
		223	AV *mainstack;
		224	perl_slots *slot; /* basically the saved sp */
		225
172	/* data associated with this coroutine (initial args) */	226	/* data associated with this coroutine (initial args) */
173	AV *args;	227	AV *args;
174	int refcnt;	228	int refcnt;
175	int save; /* CORO_SAVE flags */
176	int flags; /* CF_ flags */	229	int flags; /* CF_ flags */
177		230
178	/* optionally saved, might be zero */	231	/* statistics */
179	AV *defav; /* @_ */	232	int usecount; /* number of transfers to this coro */
180	SV *defsv; /* $_ */
181	SV *errsv; /* $@ */
182	GV *deffh; /* default filehandle */
183	SV *irssv; /* $/ */
184	SV *irssv_sv; /* real $/ cache */
185
186	#define VAR(name,type) type name;
187	# include "state.h"
188	#undef VAR
189		233
190	/* coro process data */	234	/* coro process data */
191	int prio;	235	int prio;
		236	SV *throw;
		237
		238	/* async_pool */
		239	SV *saved_deffh;
192		240
193	/* linked list */	241	/* linked list */
194	struct coro *next, *prev;	242	struct coro *next, *prev;
195	HV *hv; /* the perl hash associated with this coro, if any */	243	HV *hv; /* the perl hash associated with this coro, if any */
196	};	244	};
…		…
212	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	260	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
213	static int coro_nready;	261	static int coro_nready;
214	static struct coro *coro_first;	262	static struct coro *coro_first;
215		263
216	/** lowlevel stuff **********************************************************/	264	/** lowlevel stuff **********************************************************/
		265
		266	static SV *
		267	coro_get_sv (const char *name, int create)
		268	{
		269	#if PERL_VERSION_ATLEAST (5,9,0)
		270	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		271	get_sv (name, create);
		272	#endif
		273	return get_sv (name, create);
		274	}
		275
		276	static AV *
		277	coro_get_av (const char *name, int create)
		278	{
		279	#if PERL_VERSION_ATLEAST (5,9,0)
		280	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		281	get_av (name, create);
		282	#endif
		283	return get_av (name, create);
		284	}
		285
		286	static HV *
		287	coro_get_hv (const char *name, int create)
		288	{
		289	#if PERL_VERSION_ATLEAST (5,9,0)
		290	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		291	get_hv (name, create);
		292	#endif
		293	return get_hv (name, create);
		294	}
217		295
218	static AV *	296	static AV *
219	coro_clone_padlist (pTHX_ CV *cv)	297	coro_clone_padlist (pTHX_ CV *cv)
220	{	298	{
221	AV *padlist = CvPADLIST (cv);	299	AV *padlist = CvPADLIST (cv);
…		…
285	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	363	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
286	? SvMAGIC (cv) \	364	? SvMAGIC (cv) \
287	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	365	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
288	: 0	366	: 0
289		367
		368	static struct coro *
		369	SvSTATE_ (pTHX_ SV *coro)
		370	{
		371	HV *stash;
		372	MAGIC *mg;
		373
		374	if (SvROK (coro))
		375	coro = SvRV (coro);
		376
		377	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		378	croak ("Coro::State object required");
		379
		380	stash = SvSTASH (coro);
		381	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		382	{
		383	/* very slow, but rare, check */
		384	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		385	croak ("Coro::State object required");
		386	}
		387
		388	mg = CORO_MAGIC (coro);
		389	return (struct coro *)mg->mg_ptr;
		390	}
		391
		392	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		393
290	/* the next two functions merely cache the padlists */	394	/* the next two functions merely cache the padlists */
291	static void	395	static void
292	get_padlist (pTHX_ CV *cv)	396	get_padlist (pTHX_ CV *cv)
293	{	397	{
294	MAGIC *mg = CORO_MAGIC (cv);	398	MAGIC *mg = CORO_MAGIC (cv);
295	AV *av;	399	AV *av;
296		400
297	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	401	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
298	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	402	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
299	else	403	else
300	{	404	{
301	#if CORO_PREFER_PERL_FUNCTIONS	405	#if CORO_PREFER_PERL_FUNCTIONS
302	/* this is probably cleaner, but also slower? */	406	/* this is probably cleaner, but also slower? */
…		…
314	put_padlist (pTHX_ CV *cv)	418	put_padlist (pTHX_ CV *cv)
315	{	419	{
316	MAGIC *mg = CORO_MAGIC (cv);	420	MAGIC *mg = CORO_MAGIC (cv);
317	AV *av;	421	AV *av;
318		422
319	if (!mg)	423	if (expect_false (!mg))
320	{	424	{
321	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	425	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
322	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	426	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
323	mg->mg_virtual = &vtbl_coro;	427	mg->mg_virtual = &vtbl_coro;
324	mg->mg_obj = (SV *)newAV ();	428	mg->mg_obj = (SV *)newAV ();
325	}	429	}
326		430
327	av = (AV *)mg->mg_obj;	431	av = (AV *)mg->mg_obj;
328		432
329	if (AvFILLp (av) >= AvMAX (av))	433	if (expect_false (AvFILLp (av) >= AvMAX (av)))
330	av_extend (av, AvMAX (av) + 1);	434	av_extend (av, AvMAX (av) + 1);
331		435
332	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	436	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
333	}	437	}
334		438
335	/** load & save, init *******************************************************/	439	/** load & save, init *******************************************************/
336		440
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
342	static void	441	static void
343	load_perl (pTHX_ Coro__State c)	442	load_perl (pTHX_ Coro__State c)
344	{	443	{
		444	perl_slots *slot = c->slot;
		445	c->slot = 0;
		446
		447	PL_mainstack = c->mainstack;
		448
		449	GvSV (PL_defgv) = slot->defsv;
		450	GvAV (PL_defgv) = slot->defav;
		451	GvSV (PL_errgv) = slot->errsv;
		452	GvSV (irsgv) = slot->irsgv;
		453
345	#define VAR(name,type) PL_ ## name = c->name;	454	#define VAR(name,type) PL_ ## name = slot->name;
346	# include "state.h"	455	# include "state.h"
347	#undef VAR	456	#undef VAR
348
349	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
350	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
351	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
352	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
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		457
369	{	458	{
370	dSP;	459	dSP;
		460
371	CV *cv;	461	CV *cv;
372		462
373	/* now do the ugly restore mess */	463	/* now do the ugly restore mess */
374	while ((cv = (CV *)POPs))	464	while (expect_true (cv = (CV *)POPs))
375	{	465	{
376	put_padlist (aTHX_ cv); /* mark this padlist as available */	466	put_padlist (aTHX_ cv); /* mark this padlist as available */
377	CvDEPTH (cv) = PTR2IV (POPs);	467	CvDEPTH (cv) = PTR2IV (POPs);
378	CvPADLIST (cv) = (AV *)POPs;	468	CvPADLIST (cv) = (AV *)POPs;
379	}	469	}
…		…
398		488
399	XPUSHs (Nullsv);	489	XPUSHs (Nullsv);
400	/* this loop was inspired by pp_caller */	490	/* this loop was inspired by pp_caller */
401	for (;;)	491	for (;;)
402	{	492	{
403	while (cxix >= 0)	493	while (expect_true (cxix >= 0))
404	{	494	{
405	PERL_CONTEXT *cx = &ccstk[cxix--];	495	PERL_CONTEXT *cx = &ccstk[cxix--];
406		496
407	if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)	497	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))
408	{	498	{
409	CV *cv = cx->blk_sub.cv;	499	CV *cv = cx->blk_sub.cv;
410		500
411	if (CvDEPTH (cv))	501	if (expect_true (CvDEPTH (cv)))
412	{	502	{
413	EXTEND (SP, 3);	503	EXTEND (SP, 3);
414	PUSHs ((SV *)CvPADLIST (cv));	504	PUSHs ((SV *)CvPADLIST (cv));
415	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	505	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
416	PUSHs ((SV *)cv);	506	PUSHs ((SV *)cv);
…		…
419	get_padlist (aTHX_ cv);	509	get_padlist (aTHX_ cv);
420	}	510	}
421	}	511	}
422	}	512	}
423		513
424	if (top_si->si_type == PERLSI_MAIN)	514	if (expect_true (top_si->si_type == PERLSI_MAIN))
425	break;	515	break;
426		516
427	top_si = top_si->si_prev;	517	top_si = top_si->si_prev;
428	ccstk = top_si->si_cxstack;	518	ccstk = top_si->si_cxstack;
429	cxix = top_si->si_cxix;	519	cxix = top_si->si_cxix;
430	}	520	}
431		521
432	PUTBACK;	522	PUTBACK;
433	}	523	}
434		524
435	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	525	/* allocate some space on the context stack for our purposes */
436	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	526	{
437	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	527	/* we manually unroll here, as usually 2 slots is enough */
438	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	528	int i;
439	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	529	if (SLOT_COUNT >= 1) CXINC;
		530	if (SLOT_COUNT >= 2) CXINC;
		531	if (SLOT_COUNT >= 3) CXINC;
		532	for (i = 3; i < SLOT_COUNT; ++i)
		533	CXINC;
440		534
		535	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		536	}
		537
		538	c->mainstack = PL_mainstack;
		539
		540	{
		541	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
		542
		543	slot->defav = GvAV (PL_defgv);
		544	slot->defsv = DEFSV;
		545	slot->errsv = ERRSV;
		546	slot->irsgv = GvSV (irsgv);
		547
441	#define VAR(name,type)c->name = PL_ ## name;	548	#define VAR(name,type) slot->name = PL_ ## name;
442	# include "state.h"	549	# include "state.h"
443	#undef VAR	550	#undef VAR
		551	}
444	}	552	}
445		553
446	/*	554	/*
447	* allocate various perl stacks. This is an exact copy	555	* allocate various perl stacks. This is an exact copy
448	* of perl.c:init_stacks, except that it uses less memory	556	* of perl.c:init_stacks, except that it uses less memory
…		…
453	# define coro_init_stacks init_stacks	561	# define coro_init_stacks init_stacks
454	#else	562	#else
455	static void	563	static void
456	coro_init_stacks (pTHX)	564	coro_init_stacks (pTHX)
457	{	565	{
458	PL_curstackinfo = new_stackinfo(64, 6);	566	PL_curstackinfo = new_stackinfo(32, 8);
459	PL_curstackinfo->si_type = PERLSI_MAIN;	567	PL_curstackinfo->si_type = PERLSI_MAIN;
460	PL_curstack = PL_curstackinfo->si_stack;	568	PL_curstack = PL_curstackinfo->si_stack;
461	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	569	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
462		570
463	PL_stack_base = AvARRAY(PL_curstack);	571	PL_stack_base = AvARRAY(PL_curstack);
464	PL_stack_sp = PL_stack_base;	572	PL_stack_sp = PL_stack_base;
465	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	573	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
466		574
467	New(50,PL_tmps_stack,64,SV*);	575	New(50,PL_tmps_stack,32,SV*);
468	PL_tmps_floor = -1;	576	PL_tmps_floor = -1;
469	PL_tmps_ix = -1;	577	PL_tmps_ix = -1;
470	PL_tmps_max = 64;	578	PL_tmps_max = 32;
471		579
472	New(54,PL_markstack,16,I32);	580	New(54,PL_markstack,16,I32);
473	PL_markstack_ptr = PL_markstack;	581	PL_markstack_ptr = PL_markstack;
474	PL_markstack_max = PL_markstack + 16;	582	PL_markstack_max = PL_markstack + 16;
475		583
476	#ifdef SET_MARK_OFFSET	584	#ifdef SET_MARK_OFFSET
477	SET_MARK_OFFSET;	585	SET_MARK_OFFSET;
478	#endif	586	#endif
479		587
480	New(54,PL_scopestack,16,I32);	588	New(54,PL_scopestack,8,I32);
481	PL_scopestack_ix = 0;	589	PL_scopestack_ix = 0;
482	PL_scopestack_max = 16;	590	PL_scopestack_max = 8;
483		591
484	New(54,PL_savestack,64,ANY);	592	New(54,PL_savestack,24,ANY);
485	PL_savestack_ix = 0;	593	PL_savestack_ix = 0;
486	PL_savestack_max = 64;	594	PL_savestack_max = 24;
487		595
488	#if !PERL_VERSION_ATLEAST (5,9,0)	596	#if !PERL_VERSION_ATLEAST (5,9,0)
489	New(54,PL_retstack,4,OP*);	597	New(54,PL_retstack,4,OP*);
490	PL_retstack_ix = 0;	598	PL_retstack_ix = 0;
491	PL_retstack_max = 4;	599	PL_retstack_max = 4;
…		…
497	* destroy the stacks, the callchain etc...	605	* destroy the stacks, the callchain etc...
498	*/	606	*/
499	static void	607	static void
500	coro_destroy_stacks (pTHX)	608	coro_destroy_stacks (pTHX)
501	{	609	{
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)	610	while (PL_curstackinfo->si_next)
520	PL_curstackinfo = PL_curstackinfo->si_next;	611	PL_curstackinfo = PL_curstackinfo->si_next;
521		612
522	while (PL_curstackinfo)	613	while (PL_curstackinfo)
523	{	614	{
…		…
539	Safefree (PL_retstack);	630	Safefree (PL_retstack);
540	#endif	631	#endif
541	}	632	}
542		633
543	static size_t	634	static size_t
544	coro_rss (struct coro *coro)	635	coro_rss (pTHX_ struct coro *coro)
545	{	636	{
546	size_t rss = sizeof (coro);	637	size_t rss = sizeof (*coro);
547		638
548	if (coro->mainstack)	639	if (coro->mainstack)
549	{	640	{
		641	perl_slots tmp_slot;
		642	perl_slots *slot;
		643
550	if (coro->flags & CF_RUNNING)	644	if (coro->flags & CF_RUNNING)
551	{	645	{
		646	slot = &tmp_slot;
		647
552	#define VAR(name,type)coro->name = PL_ ## name;	648	#define VAR(name,type) slot->name = PL_ ## name;
553	# include "state.h"	649	# include "state.h"
554	#undef VAR	650	#undef VAR
555	}	651	}
		652	else
		653	slot = coro->slot;
556		654
557	rss += sizeof (coro->curstackinfo);	655	rss += sizeof (slot->curstackinfo);
558	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
559	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	656	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
560	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	657	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
561	rss += coro->tmps_max * sizeof (SV *);	658	rss += slot->tmps_max * sizeof (SV *);
562	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	659	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
563	rss += coro->scopestack_max * sizeof (I32);	660	rss += slot->scopestack_max * sizeof (I32);
564	rss += coro->savestack_max * sizeof (ANY);	661	rss += slot->savestack_max * sizeof (ANY);
565		662
566	#if !PERL_VERSION_ATLEAST (5,9,0)	663	#if !PERL_VERSION_ATLEAST (5,9,0)
567	rss += coro->retstack_max * sizeof (OP *);	664	rss += slot->retstack_max * sizeof (OP *);
568	#endif	665	#endif
569	}	666	}
570		667
571	return rss;	668	return rss;
572	}	669	}
573		670
574	/** coroutine stack handling ************************************************/	671	/** coroutine stack handling ************************************************/
575		672
576	static void	673	static void
577	setup_coro (pTHX_ struct coro *coro)	674	coro_setup (pTHX_ struct coro *coro)
578	{	675	{
579	/*	676	/*
580	* emulate part of the perl startup here.	677	* emulate part of the perl startup here.
581	*/	678	*/
582	coro_init_stacks (aTHX);	679	coro_init_stacks (aTHX);
583		680
		681	PL_runops = RUNOPS_DEFAULT;
584	PL_curcop = &PL_compiling;	682	PL_curcop = &PL_compiling;
585	PL_in_eval = EVAL_NULL;	683	PL_in_eval = EVAL_NULL;
586	PL_comppad = 0;	684	PL_comppad = 0;
587	PL_curpm = 0;	685	PL_curpm = 0;
		686	PL_curpad = 0;
588	PL_localizing = 0;	687	PL_localizing = 0;
589	PL_dirty = 0;	688	PL_dirty = 0;
590	PL_restartop = 0;	689	PL_restartop = 0;
		690	SvREFCNT_inc (PL_diehook ); hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
		691	SvREFCNT_inc (PL_warnhook); hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
		692
		693	GvSV (PL_defgv) = newSV (0);
		694	GvAV (PL_defgv) = coro->args; coro->args = 0;
		695	GvSV (PL_errgv) = newSV (0);
		696	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		697	PL_rs = newSVsv (GvSV (irsgv));
		698	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
591		699
592	{	700	{
593	dSP;	701	dSP;
594	LOGOP myop;	702	LOGOP myop;
595		703
596	SvREFCNT_dec (GvAV (PL_defgv));
597	GvAV (PL_defgv) = coro->args; coro->args = 0;
598
599	Zero (&myop, 1, LOGOP);	704	Zero (&myop, 1, LOGOP);
600	myop.op_next = Nullop;	705	myop.op_next = Nullop;
601	myop.op_flags = OPf_WANT_VOID;	706	myop.op_flags = OPf_WANT_VOID;
602		707
603	PUSHMARK (SP);	708	PUSHMARK (SP);
604	XPUSHs (av_shift (GvAV (PL_defgv)));	709	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
605	PUTBACK;	710	PUTBACK;
606	PL_op = (OP *)&myop;	711	PL_op = (OP *)&myop;
607	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	712	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
608	SPAGAIN;	713	SPAGAIN;
609	}	714	}
610		715
611	ENTER; /* necessary e.g. for dounwind */	716	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */
		717	}
		718
		719	static void
		720	coro_destroy (pTHX_ struct coro *coro)
		721	{
		722	if (!IN_DESTRUCT)
		723	{
		724	/* restore all saved variables and stuff */
		725	LEAVE_SCOPE (0);
		726	assert (PL_tmps_floor == -1);
		727
		728	/* free all temporaries */
		729	FREETMPS;
		730	assert (PL_tmps_ix == -1);
		731
		732	/* unwind all extra stacks */
		733	POPSTACK_TO (PL_mainstack);
		734
		735	/* unwind main stack */
		736	dounwind (-1);
		737	}
		738
		739	SvREFCNT_dec (GvSV (PL_defgv));
		740	SvREFCNT_dec (GvAV (PL_defgv));
		741	SvREFCNT_dec (GvSV (PL_errgv));
		742	SvREFCNT_dec (PL_defoutgv);
		743	SvREFCNT_dec (PL_rs);
		744	SvREFCNT_dec (GvSV (irsgv));
		745
		746	SvREFCNT_dec (PL_diehook);
		747	SvREFCNT_dec (PL_warnhook);
		748
		749	SvREFCNT_dec (coro->saved_deffh);
		750	SvREFCNT_dec (coro->throw);
		751
		752	coro_destroy_stacks (aTHX);
612	}	753	}
613		754
614	static void	755	static void
615	free_coro_mortal (pTHX)	756	free_coro_mortal (pTHX)
616	{	757	{
617	if (coro_mortal)	758	if (expect_true (coro_mortal))
618	{	759	{
619	SvREFCNT_dec (coro_mortal);	760	SvREFCNT_dec (coro_mortal);
620	coro_mortal = 0;	761	coro_mortal = 0;
621	}	762	}
		763	}
		764
		765	static int
		766	runops_trace (pTHX)
		767	{
		768	COP *oldcop = 0;
		769	int oldcxix = -2;
		770	struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
		771	coro_cctx *cctx = coro->cctx;
		772
		773	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		774	{
		775	PERL_ASYNC_CHECK ();
		776
		777	if (cctx->flags & CC_TRACE_ALL)
		778	{
		779	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		780	{
		781	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		782	SV **bot, **top;
		783	AV *av = newAV (); /* return values */
		784	SV **cb;
		785	dSP;
		786
		787	GV *gv = CvGV (cx->blk_sub.cv);
		788	SV *fullname = sv_2mortal (newSV (0));
		789	if (isGV (gv))
		790	gv_efullname3 (fullname, gv, 0);
		791
		792	bot = PL_stack_base + cx->blk_oldsp + 1;
		793	top = cx->blk_gimme == G_ARRAY ? SP + 1
		794	: cx->blk_gimme == G_SCALAR ? bot + 1
		795	: bot;
		796
		797	av_extend (av, top - bot);
		798	while (bot < top)
		799	av_push (av, SvREFCNT_inc (*bot++));
		800
		801	PL_runops = RUNOPS_DEFAULT;
		802	ENTER;
		803	SAVETMPS;
		804	EXTEND (SP, 3);
		805	PUSHMARK (SP);
		806	PUSHs (&PL_sv_no);
		807	PUSHs (fullname);
		808	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		809	PUTBACK;
		810	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);
		811	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		812	SPAGAIN;
		813	FREETMPS;
		814	LEAVE;
		815	PL_runops = runops_trace;
		816	}
		817
		818	if (oldcop != PL_curcop)
		819	{
		820	oldcop = PL_curcop;
		821
		822	if (PL_curcop != &PL_compiling)
		823	{
		824	SV **cb;
		825
		826	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		827	{
		828	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		829
		830	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		831	{
		832	runops_proc_t old_runops = PL_runops;
		833	dSP;
		834	GV *gv = CvGV (cx->blk_sub.cv);
		835	SV *fullname = sv_2mortal (newSV (0));
		836
		837	if (isGV (gv))
		838	gv_efullname3 (fullname, gv, 0);
		839
		840	PL_runops = RUNOPS_DEFAULT;
		841	ENTER;
		842	SAVETMPS;
		843	EXTEND (SP, 3);
		844	PUSHMARK (SP);
		845	PUSHs (&PL_sv_yes);
		846	PUSHs (fullname);
		847	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		848	PUTBACK;
		849	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);
		850	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		851	SPAGAIN;
		852	FREETMPS;
		853	LEAVE;
		854	PL_runops = runops_trace;
		855	}
		856
		857	oldcxix = cxstack_ix;
		858	}
		859
		860	if (cctx->flags & CC_TRACE_LINE)
		861	{
		862	dSP;
		863
		864	PL_runops = RUNOPS_DEFAULT;
		865	ENTER;
		866	SAVETMPS;
		867	EXTEND (SP, 3);
		868	PL_runops = RUNOPS_DEFAULT;
		869	PUSHMARK (SP);
		870	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		871	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		872	PUTBACK;
		873	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0);
		874	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		875	SPAGAIN;
		876	FREETMPS;
		877	LEAVE;
		878	PL_runops = runops_trace;
		879	}
		880	}
		881	}
		882	}
		883	}
		884
		885	TAINT_NOT;
		886	return 0;
622	}	887	}
623		888
624	/* inject a fake call to Coro::State::_cctx_init into the execution */	889	/* 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 */	890	/* _cctx_init should be careful, as it could be called at almost any time */
626	/* during execution of a perl program */	891	/* during execution of a perl program */
627	static void NOINLINE	892	static void NOINLINE
628	prepare_cctx (pTHX_ coro_cctx *cctx)	893	prepare_cctx (pTHX_ coro_cctx *cctx)
629	{	894	{
630	dSP;	895	dSP;
631	LOGOP myop;	896	LOGOP myop;
		897
		898	PL_top_env = &PL_start_env;
		899
		900	if (cctx->flags & CC_TRACE)
		901	PL_runops = runops_trace;
632		902
633	Zero (&myop, 1, LOGOP);	903	Zero (&myop, 1, LOGOP);
634	myop.op_next = PL_op;	904	myop.op_next = PL_op;
635	myop.op_flags = OPf_WANT_VOID | OPf_STACKED;	905	myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
636		906
…		…
653	dTHX;	923	dTHX;
654		924
655	/* coro_run is the alternative tail of transfer(), so unlock here. */	925	/* coro_run is the alternative tail of transfer(), so unlock here. */
656	UNLOCK;	926	UNLOCK;
657		927
658	PL_top_env = &PL_start_env;	928	/* we now skip the entersub that lead to transfer() */
		929	PL_op = PL_op->op_next;
659		930
660	/* inject a fake subroutine call to cctx_init */	931	/* inject a fake subroutine call to cctx_init */
661	prepare_cctx (aTHX_ (coro_cctx *)arg);	932	prepare_cctx (aTHX_ (coro_cctx *)arg);
662		933
663	/* somebody or something will hit me for both perl_run and PL_restartop */	934	/* somebody or something will hit me for both perl_run and PL_restartop */
…		…
697	# if CORO_STACKGUARD	968	# if CORO_STACKGUARD
698	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	969	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
699	# endif	970	# endif
700	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	971	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
701	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	972	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
702	cctx->mapped = 1;	973	cctx->flags |= CC_MAPPED;
703	}	974	}
704	else	975	else
705	#endif	976	#endif
706	{	977	{
707	cctx->ssize = coro_stacksize * (long)sizeof (long);	978	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
734	#if CORO_USE_VALGRIND	1005	#if CORO_USE_VALGRIND
735	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1006	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
736	#endif	1007	#endif
737		1008
738	#if HAVE_MMAP	1009	#if HAVE_MMAP
739	if (cctx->mapped)	1010	if (cctx->flags & CC_MAPPED)
740	munmap (cctx->sptr, cctx->ssize);	1011	munmap (cctx->sptr, cctx->ssize);
741	else	1012	else
742	#endif	1013	#endif
743	Safefree (cctx->sptr);	1014	Safefree (cctx->sptr);
744		1015
745	Safefree (cctx);	1016	Safefree (cctx);
746	}	1017	}
747		1018
		1019	/* wether this cctx should be destructed */
		1020	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE))
		1021
748	static coro_cctx *	1022	static coro_cctx *
749	cctx_get (pTHX)	1023	cctx_get (pTHX)
750	{	1024	{
751	while (cctx_first)	1025	while (expect_true (cctx_first))
752	{	1026	{
753	coro_cctx *cctx = cctx_first;	1027	coro_cctx *cctx = cctx_first;
754	cctx_first = cctx->next;	1028	cctx_first = cctx->next;
755	--cctx_idle;	1029	--cctx_idle;
756		1030
757	if (cctx->ssize >= coro_stacksize)	1031	if (expect_true (!CCTX_EXPIRED (cctx)))
758	return cctx;	1032	return cctx;
759		1033
760	cctx_destroy (cctx);	1034	cctx_destroy (cctx);
761	}	1035	}
762		1036
763	PL_op = PL_op->op_next;
764	return cctx_new ();	1037	return cctx_new ();
765	}	1038	}
766		1039
767	static void	1040	static void
768	cctx_put (coro_cctx *cctx)	1041	cctx_put (coro_cctx *cctx)
769	{	1042	{
770	/* free another cctx if overlimit */	1043	/* free another cctx if overlimit */
771	if (cctx_idle >= MAX_IDLE_CCTX)	1044	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
772	{	1045	{
773	coro_cctx *first = cctx_first;	1046	coro_cctx *first = cctx_first;
774	cctx_first = first->next;	1047	cctx_first = first->next;
775	--cctx_idle;	1048	--cctx_idle;
776		1049
777	assert (!first->inuse);
778	cctx_destroy (first);	1050	cctx_destroy (first);
779	}	1051	}
780		1052
781	++cctx_idle;	1053	++cctx_idle;
782	cctx->next = cctx_first;	1054	cctx->next = cctx_first;
783	cctx_first = cctx;	1055	cctx_first = cctx;
784	}	1056	}
785		1057
786	/** coroutine switching *****************************************************/	1058	/** coroutine switching *****************************************************/
787		1059
788	/* never call directly, always through the coro_state_transfer global variable */	1060	static void
		1061	transfer_check (pTHX_ struct coro *prev, struct coro *next)
		1062	{
		1063	if (expect_true (prev != next))
		1064	{
		1065	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
		1066	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		1067
		1068	if (expect_false (next->flags & CF_RUNNING))
		1069	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		1070
		1071	if (expect_false (next->flags & CF_DESTROYED))
		1072	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		1073
		1074	if (
		1075	#if PERL_VERSION_ATLEAST (5,9,0)
		1076	expect_false (PL_parser)
		1077	#else
		1078	expect_false (PL_lex_state != LEX_NOTPARSING)
		1079	#endif
		1080	)
		1081	croak ("Coro::State::transfer called while parsing, but this is not supported");
		1082	}
		1083	}
		1084
		1085	/* always use the TRANSFER macro */
789	static void NOINLINE	1086	static void NOINLINE
790	transfer (pTHX_ struct coro *prev, struct coro *next)	1087	transfer (pTHX_ struct coro *prev, struct coro *next)
791	{	1088	{
792	dSTACKLEVEL;	1089	dSTACKLEVEL;
793		1090
794	/* sometimes transfer is only called to set idle_sp */	1091	/* sometimes transfer is only called to set idle_sp */
795	if (!next)	1092	if (expect_false (!next))
796	{	1093	{
797	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1094	((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 */	1095	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
799	}	1096	}
800	else if (prev != next)	1097	else if (expect_true (prev != next))
801	{	1098	{
802	coro_cctx *prev__cctx;	1099	coro_cctx *prev__cctx;
803		1100
804	if (prev->flags & CF_NEW)	1101	if (expect_false (prev->flags & CF_NEW))
805	{	1102	{
806	/* create a new empty context */	1103	/* create a new empty context */
807	Newz (0, prev->cctx, 1, coro_cctx);	1104	Newz (0, prev->cctx, 1, coro_cctx);
808	prev->cctx->inuse = 1;
809	prev->flags &= ~CF_NEW;	1105	prev->flags &= ~CF_NEW;
810	prev->flags |= CF_RUNNING;	1106	prev->flags |= CF_RUNNING;
811	}	1107	}
812		1108
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;	1109	prev->flags &= ~CF_RUNNING;
824	next->flags |= CF_RUNNING;	1110	next->flags |= CF_RUNNING;
825		1111
826	LOCK;	1112	LOCK;
827		1113
828	if (next->flags & CF_NEW)	1114	if (expect_false (next->flags & CF_NEW))
829	{	1115	{
830	/* need to start coroutine */	1116	/* need to start coroutine */
831	next->flags &= ~CF_NEW;	1117	next->flags &= ~CF_NEW;
832	/* first get rid of the old state */	1118	/* first get rid of the old state */
833	save_perl (aTHX_ prev);	1119	save_perl (aTHX_ prev);
834	/* setup coroutine call */	1120	/* setup coroutine call */
835	setup_coro (aTHX_ next);	1121	coro_setup (aTHX_ next);
836	/* need a new stack */
837	assert (!next->cctx);
838	}	1122	}
839	else	1123	else
840	{	1124	{
841	/* coroutine already started */	1125	/* coroutine already started */
842	save_perl (aTHX_ prev);	1126	save_perl (aTHX_ prev);
…		…
844	}	1128	}
845		1129
846	prev__cctx = prev->cctx;	1130	prev__cctx = prev->cctx;
847		1131
848	/* possibly "free" the cctx */	1132	/* possibly "free" the cctx */
849	if (prev__cctx->idle_sp == STACKLEVEL)	1133	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
850	{	1134	{
851	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1135	/* 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));	1136	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
853		1137
854	prev->cctx = 0;	1138	prev->cctx = 0;
855		1139
		1140	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1141	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1142	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1143	next->cctx = cctx_get (aTHX);
		1144
856	cctx_put (prev__cctx);	1145	cctx_put (prev__cctx);
857	prev__cctx->inuse = 0;
858	}	1146	}
859		1147
		1148	++next->usecount;
		1149
860	if (!next->cctx)	1150	if (expect_true (!next->cctx))
861	{
862	next->cctx = cctx_get (aTHX);	1151	next->cctx = cctx_get (aTHX);
863	assert (!next->cctx->inuse);
864	next->cctx->inuse = 1;
865	}
866		1152
867	if (prev__cctx != next->cctx)	1153	if (expect_false (prev__cctx != next->cctx))
868	{	1154	{
869	prev__cctx->top_env = PL_top_env;	1155	prev__cctx->top_env = PL_top_env;
870	PL_top_env = next->cctx->top_env;	1156	PL_top_env = next->cctx->top_env;
871	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1157	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
872	}	1158	}
873		1159
874	free_coro_mortal (aTHX);	1160	free_coro_mortal (aTHX);
875	UNLOCK;	1161	UNLOCK;
		1162
		1163	if (expect_false (prev->throw || next->throw))
		1164	{
		1165	struct coro *coro = SvSTATE (coro_current);
		1166
		1167	if (coro->throw)
		1168	{
		1169	SV *exception = coro->throw;
		1170	coro->throw = 0;
		1171	sv_setsv (ERRSV, exception);
		1172	croak (0);
		1173	}
		1174	}
876	}	1175	}
877	}	1176	}
878		1177
879	struct transfer_args	1178	struct transfer_args
880	{	1179	{
881	struct coro *prev, *next;	1180	struct coro *prev, *next;
882	};	1181	};
883		1182
884	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1183	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1184	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
885		1185
886	/** high level stuff ********************************************************/	1186	/** high level stuff ********************************************************/
887		1187
888	static int	1188	static int
889	coro_state_destroy (pTHX_ struct coro *coro)	1189	coro_state_destroy (pTHX_ struct coro *coro)
…		…
906		1206
907	if (coro->mainstack && coro->mainstack != main_mainstack)	1207	if (coro->mainstack && coro->mainstack != main_mainstack)
908	{	1208	{
909	struct coro temp;	1209	struct coro temp;
910		1210
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)	1211	if (coro->flags & CF_RUNNING)
917	croak ("FATAL: tried to destroy currently running coroutine");	1212	croak ("FATAL: tried to destroy currently running coroutine");
918		1213
919	save_perl (aTHX_ &temp);	1214	save_perl (aTHX_ &temp);
920	load_perl (aTHX_ coro);	1215	load_perl (aTHX_ coro);
921		1216
922	coro_destroy_stacks (aTHX);	1217	coro_destroy (aTHX_ coro);
923		1218
924	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1219	load_perl (aTHX_ &temp);
925		1220
926	coro->mainstack = 0;	1221	coro->slot = 0;
927	}	1222	}
928		1223
929	cctx_destroy (coro->cctx);	1224	cctx_destroy (coro->cctx);
930	SvREFCNT_dec (coro->args);	1225	SvREFCNT_dec (coro->args);
931		1226
…		…
972	#else	1267	#else
973	# define MGf_DUP 0	1268	# define MGf_DUP 0
974	#endif	1269	#endif
975	};	1270	};
976		1271
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	1272	static void
1001	prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)	1273	prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
1002	{	1274	{
1003	ta->prev = SvSTATE (prev_sv);	1275	ta->prev = SvSTATE (prev_sv);
1004	ta->next = SvSTATE (next_sv);	1276	ta->next = SvSTATE (next_sv);
		1277	TRANSFER_CHECK (*ta);
1005	}	1278	}
1006		1279
1007	static void	1280	static void
1008	api_transfer (SV *prev_sv, SV *next_sv)	1281	api_transfer (SV *prev_sv, SV *next_sv)
1009	{	1282	{
1010	dTHX;	1283	dTHX;
1011	struct transfer_args ta;	1284	struct transfer_args ta;
1012		1285
1013	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1286	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1014	TRANSFER (ta);	1287	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	}	1288	}
1029		1289
1030	/** Coro ********************************************************************/	1290	/** Coro ********************************************************************/
1031		1291
1032	static void	1292	static void
…		…
1091	{	1351	{
1092	LOCK;	1352	LOCK;
1093	next_sv = coro_deq (aTHX_ PRIO_MIN);	1353	next_sv = coro_deq (aTHX_ PRIO_MIN);
1094		1354
1095	/* nothing to schedule: call the idle handler */	1355	/* nothing to schedule: call the idle handler */
1096	if (!next_sv)	1356	if (expect_false (!next_sv))
1097	{	1357	{
1098	dSP;	1358	dSP;
1099	UNLOCK;	1359	UNLOCK;
1100		1360
1101	ENTER;	1361	ENTER;
…		…
1111	}	1371	}
1112		1372
1113	ta->next = SvSTATE (next_sv);	1373	ta->next = SvSTATE (next_sv);
1114		1374
1115	/* cannot transfer to destroyed coros, skip and look for next */	1375	/* cannot transfer to destroyed coros, skip and look for next */
1116	if (ta->next->flags & CF_DESTROYED)	1376	if (expect_false (ta->next->flags & CF_DESTROYED))
1117	{	1377	{
1118	UNLOCK;	1378	UNLOCK;
1119	SvREFCNT_dec (next_sv);	1379	SvREFCNT_dec (next_sv);
1120	/* coro_nready is already taken care of by destroy */	1380	/* coro_nready is already taken care of by destroy */
1121	continue;	1381	continue;
…		…
1126	break;	1386	break;
1127	}	1387	}
1128		1388
1129	/* free this only after the transfer */	1389	/* free this only after the transfer */
1130	prev_sv = SvRV (coro_current);	1390	prev_sv = SvRV (coro_current);
1131	SvRV_set (coro_current, next_sv);
1132	ta->prev = SvSTATE (prev_sv);	1391	ta->prev = SvSTATE (prev_sv);
1133		1392	TRANSFER_CHECK (*ta);
1134	assert (ta->next->flags & CF_READY);	1393	assert (ta->next->flags & CF_READY);
1135	ta->next->flags &= ~CF_READY;	1394	ta->next->flags &= ~CF_READY;
		1395	SvRV_set (coro_current, next_sv);
1136		1396
1137	LOCK;	1397	LOCK;
1138	free_coro_mortal (aTHX);	1398	free_coro_mortal (aTHX);
1139	coro_mortal = prev_sv;	1399	coro_mortal = prev_sv;
1140	UNLOCK;	1400	UNLOCK;
…		…
1177	dTHX;	1437	dTHX;
1178	struct transfer_args ta;	1438	struct transfer_args ta;
1179		1439
1180	prepare_cede (aTHX_ &ta);	1440	prepare_cede (aTHX_ &ta);
1181		1441
1182	if (ta.prev != ta.next)	1442	if (expect_true (ta.prev != ta.next))
1183	{	1443	{
1184	TRANSFER (ta);	1444	TRANSFER (ta);
1185	return 1;	1445	return 1;
1186	}	1446	}
1187	else	1447	else
…		…
1201	}	1461	}
1202	else	1462	else
1203	return 0;	1463	return 0;
1204	}	1464	}
1205		1465
		1466	static void
		1467	api_trace (SV *coro_sv, int flags)
		1468	{
		1469	dTHX;
		1470	struct coro *coro = SvSTATE (coro_sv);
		1471
		1472	if (flags & CC_TRACE)
		1473	{
		1474	if (!coro->cctx)
		1475	coro->cctx = cctx_new ();
		1476	else if (!(coro->cctx->flags & CC_TRACE))
		1477	croak ("cannot enable tracing on coroutine with custom stack");
		1478
		1479	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
		1480	}
		1481	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1482	{
		1483	coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
		1484
		1485	if (coro->flags & CF_RUNNING)
		1486	PL_runops = RUNOPS_DEFAULT;
		1487	else
		1488	coro->slot->runops = RUNOPS_DEFAULT;
		1489	}
		1490	}
		1491
1206	MODULE = Coro::State PACKAGE = Coro::State	1492	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1207		1493
1208	PROTOTYPES: DISABLE	1494	PROTOTYPES: DISABLE
1209		1495
1210	BOOT:	1496	BOOT:
1211	{	1497	{
1212	#ifdef USE_ITHREADS	1498	#ifdef USE_ITHREADS
1213	MUTEX_INIT (&coro_mutex);	1499	MUTEX_INIT (&coro_mutex);
1214	#endif	1500	#endif
1215	BOOT_PAGESIZE;	1501	BOOT_PAGESIZE;
1216		1502
		1503	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
		1504	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
		1505
		1506	hv_sig = coro_get_hv ("SIG", TRUE);
		1507	sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);
		1508	sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);
		1509
		1510	if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
		1511	if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
		1512
1217	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1513	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1218		1514
1219	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1515	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1220	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1516	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));	1517	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1225	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1518	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1226		1519
1227	main_mainstack = PL_mainstack;	1520	main_mainstack = PL_mainstack;
1228	main_top_env = PL_top_env;	1521	main_top_env = PL_top_env;
1229		1522
1230	while (main_top_env->je_prev)	1523	while (main_top_env->je_prev)
…		…
1243	struct coro *coro;	1536	struct coro *coro;
1244	HV *hv;	1537	HV *hv;
1245	int i;	1538	int i;
1246		1539
1247	Newz (0, coro, 1, struct coro);	1540	Newz (0, coro, 1, struct coro);
1248	coro->args = newAV ();	1541	coro->args = newAV ();
1249	coro->save = CORO_SAVE_DEF;
1250	coro->flags = CF_NEW;	1542	coro->flags = CF_NEW;
1251		1543
1252	if (coro_first) coro_first->prev = coro;	1544	if (coro_first) coro_first->prev = coro;
1253	coro->next = coro_first;	1545	coro->next = coro_first;
1254	coro_first = coro;	1546	coro_first = coro;
1255		1547
1256	coro->hv = hv = newHV ();	1548	coro->hv = hv = newHV ();
1257	sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;	1549	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));	1550	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1259		1551
		1552	av_extend (coro->args, items - 1);
1260	for (i = 1; i < items; i++)	1553	for (i = 1; i < items; i++)
1261	av_push (coro->args, newSVsv (ST (i)));	1554	av_push (coro->args, newSVsv (ST (i)));
1262	}	1555	}
1263	OUTPUT:	1556	OUTPUT:
1264	RETVAL	1557	RETVAL
1265		1558
1266	int	1559	# these not obviously related functions are all rolled into the same xs
1267	save (SV *coro, int new_save = -1)	1560	# function to increase chances that they all will call transfer with the same
1268	CODE:	1561	# 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	1562	void
1285	_set_stacklevel (...)	1563	_set_stacklevel (...)
1286	ALIAS:	1564	ALIAS:
1287	Coro::State::transfer = 1	1565	Coro::State::transfer = 1
1288	Coro::schedule = 2	1566	Coro::schedule = 2
…		…
1322	}	1600	}
1323		1601
1324	BARRIER;	1602	BARRIER;
1325	TRANSFER (ta);	1603	TRANSFER (ta);
1326		1604
1327	if (GIMME_V != G_VOID && ta.next != ta.prev)	1605	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1328	XSRETURN_YES;	1606	XSRETURN_YES;
1329	}	1607	}
1330		1608
1331	bool	1609	bool
1332	_destroy (SV *coro_sv)	1610	_destroy (SV *coro_sv)
…		…
1374	if (coro->hv)	1652	if (coro->hv)
1375	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));	1653	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1376	}	1654	}
1377		1655
1378	void	1656	void
1379	_eval (Coro::State coro, SV *coderef)	1657	call (Coro::State coro, SV *coderef)
		1658	ALIAS:
		1659	eval = 1
1380	CODE:	1660	CODE:
1381	{	1661	{
1382	if (coro->mainstack)	1662	if (coro->mainstack)
1383	{	1663	{
1384	struct coro temp;	1664	struct coro temp;
1385	Zero (&temp, 1, struct coro);
1386	temp.save = CORO_SAVE_ALL;
1387		1665
1388	if (!(coro->flags & CF_RUNNING))	1666	if (!(coro->flags & CF_RUNNING))
1389	{	1667	{
1390	save_perl (aTHX_ &temp);	1668	save_perl (aTHX_ &temp);
1391	load_perl (aTHX_ coro);	1669	load_perl (aTHX_ coro);
…		…
1395	dSP;	1673	dSP;
1396	ENTER;	1674	ENTER;
1397	SAVETMPS;	1675	SAVETMPS;
1398	PUSHMARK (SP);	1676	PUSHMARK (SP);
1399	PUTBACK;	1677	PUTBACK;
		1678
		1679	if (ix)
		1680	eval_sv (coderef, 0);
		1681	else
1400	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	1682	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		1683
1401	SPAGAIN;	1684	SPAGAIN;
1402	FREETMPS;	1685	FREETMPS;
1403	LEAVE;	1686	LEAVE;
1404	PUTBACK;	1687	PUTBACK;
1405	}	1688	}
…		…
1409	save_perl (aTHX_ coro);	1692	save_perl (aTHX_ coro);
1410	load_perl (aTHX_ &temp);	1693	load_perl (aTHX_ &temp);
1411	}	1694	}
1412	}	1695	}
1413	}	1696	}
1414		1697
1415	SV *	1698	SV *
1416	is_ready (Coro::State coro)	1699	is_ready (Coro::State coro)
1417	PROTOTYPE: $	1700	PROTOTYPE: $
1418	ALIAS:	1701	ALIAS:
1419	is_ready = CF_READY	1702	is_ready = CF_READY
…		…
1423	CODE:	1706	CODE:
1424	RETVAL = boolSV (coro->flags & ix);	1707	RETVAL = boolSV (coro->flags & ix);
1425	OUTPUT:	1708	OUTPUT:
1426	RETVAL	1709	RETVAL
1427		1710
		1711	void
		1712	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
		1713
		1714	SV *
		1715	has_stack (Coro::State coro)
		1716	PROTOTYPE: $
		1717	CODE:
		1718	RETVAL = boolSV (!!coro->cctx);
		1719	OUTPUT:
		1720	RETVAL
		1721
		1722	int
		1723	is_traced (Coro::State coro)
		1724	PROTOTYPE: $
		1725	CODE:
		1726	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1727	OUTPUT:
		1728	RETVAL
		1729
1428	IV	1730	IV
1429	rss (Coro::State coro)	1731	rss (Coro::State coro)
1430	PROTOTYPE: $	1732	PROTOTYPE: $
		1733	ALIAS:
		1734	usecount = 1
1431	CODE:	1735	CODE:
1432	RETVAL = coro_rss (coro);	1736	switch (ix)
		1737	{
		1738	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1739	case 1: RETVAL = coro->usecount; break;
		1740	}
1433	OUTPUT:	1741	OUTPUT:
1434	RETVAL	1742	RETVAL
1435		1743
1436		1744
1437	MODULE = Coro::State PACKAGE = Coro	1745	MODULE = Coro::State PACKAGE = Coro
1438		1746
1439	BOOT:	1747	BOOT:
1440	{	1748	{
1441	int i;	1749	int i;
1442		1750
		1751	sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
		1752	sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
		1753	av_async_pool = coro_get_av ("Coro::async_pool", TRUE);
		1754
		1755	coro_current = coro_get_sv ("Coro::current", FALSE);
		1756	SvREADONLY_on (coro_current);
		1757
1443	coro_stash = gv_stashpv ("Coro", TRUE);	1758	coro_stash = gv_stashpv ("Coro", TRUE);
1444		1759
1445	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1760	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1446	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1761	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1447	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1762	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1448	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1763	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1449	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1764	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1450	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1765	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1451		1766
1452	coro_current = get_sv ("Coro::current", FALSE);
1453	SvREADONLY_on (coro_current);
1454
1455	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1767	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1456	coro_ready[i] = newAV ();	1768	coro_ready[i] = newAV ();
1457		1769
1458	{	1770	{
1459	SV *sv = perl_get_sv("Coro::API", 1);	1771	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1772	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1460		1773
1461	coroapi.schedule = api_schedule;	1774	coroapi.schedule = api_schedule;
1462	coroapi.save = api_save;
1463	coroapi.cede = api_cede;	1775	coroapi.cede = api_cede;
1464	coroapi.cede_notself = api_cede_notself;	1776	coroapi.cede_notself = api_cede_notself;
1465	coroapi.ready = api_ready;	1777	coroapi.ready = api_ready;
1466	coroapi.is_ready = api_is_ready;	1778	coroapi.is_ready = api_is_ready;
1467	coroapi.nready = &coro_nready;	1779	coroapi.nready = &coro_nready;
…		…
1516	CODE:	1828	CODE:
1517	RETVAL = coro_nready;	1829	RETVAL = coro_nready;
1518	OUTPUT:	1830	OUTPUT:
1519	RETVAL	1831	RETVAL
1520		1832
		1833	void
		1834	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1835	PROTOTYPE: $;$
		1836	CODE:
		1837	SvREFCNT_dec (self->throw);
		1838	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1839
		1840	# for async_pool speedup
		1841	void
		1842	_pool_1 (SV *cb)
		1843	CODE:
		1844	{
		1845	struct coro *coro = SvSTATE (coro_current);
		1846	HV *hv = (HV *)SvRV (coro_current);
		1847	AV *defav = GvAV (PL_defgv);
		1848	SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);
		1849	AV *invoke_av;
		1850	int i, len;
		1851
		1852	if (!invoke)
		1853	croak ("\3async_pool terminate\2\n");
		1854
		1855	SvREFCNT_dec (coro->saved_deffh);
		1856	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1857
		1858	hv_store (hv, "desc", sizeof ("desc") - 1,
		1859	newSVpvn (strpair ("[async_pool]")), 0);
		1860
		1861	invoke_av = (AV *)SvRV (invoke);
		1862	len = av_len (invoke_av);
		1863
		1864	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1865
		1866	if (len > 0)
		1867	{
		1868	av_fill (defav, len - 1);
		1869	for (i = 0; i < len; ++i)
		1870	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1871	}
		1872
		1873	SvREFCNT_dec (invoke);
		1874	}
		1875
		1876	void
		1877	_pool_2 (SV *cb)
		1878	CODE:
		1879	{
		1880	struct coro *coro = SvSTATE (coro_current);
		1881
		1882	sv_setsv (cb, &PL_sv_undef);
		1883
		1884	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
		1885	coro->saved_deffh = 0;
		1886
		1887	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1888	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1889	croak ("\3async_pool terminate\2\n");
		1890
		1891	av_clear (GvAV (PL_defgv));
		1892	hv_store ((HV *)SvRV (coro_current), strpair ("desc"),
		1893	newSVpvn (strpair ("[async_pool idle]")), 0);
		1894
		1895	coro->prio = 0;
		1896
		1897	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1898	api_trace (coro_current, 0);
		1899
		1900	av_push (av_async_pool, newSVsv (coro_current));
		1901	}
		1902
		1903
1521	MODULE = Coro::State PACKAGE = Coro::AIO	1904	MODULE = Coro::State PACKAGE = Coro::AIO
1522		1905
1523	SV *	1906	SV *
1524	_get_state ()	1907	_get_state ()
1525	CODE:	1908	CODE:

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