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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.145 by root, Mon Mar 12 21:40:14 2007 UTC vs.
Revision 1.191 by root, Fri Oct 5 20:47:49 2007 UTC

1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
		2
		3	#define PERL_NO_GET_CONTEXT
2		4
3	#include "EXTERN.h"	5	#include "EXTERN.h"
4	#include "perl.h"	6	#include "perl.h"
5	#include "XSUB.h"	7	#include "XSUB.h"
6		8
…		…
73	/* 5.8.7 */	75	/* 5.8.7 */
74	#ifndef SvRV_set	76	#ifndef SvRV_set
75	# define SvRV_set(s,v) SvRV(s) = (v)	77	# define SvRV_set(s,v) SvRV(s) = (v)
76	#endif	78	#endif
77		79
		80	/* 5.8.8 */
		81	#ifndef GV_NOTQUAL
		82	# define GV_NOTQUAL 0
		83	#endif
		84	#ifndef newSV
		85	# define newSV(l) NEWSV(0,l)
		86	#endif
		87
78	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	88	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
79	# undef CORO_STACKGUARD	89	# undef CORO_STACKGUARD
80	#endif	90	#endif
81		91
82	#ifndef CORO_STACKGUARD	92	#ifndef CORO_STACKGUARD
…		…
86	/* prefer perl internal functions over our own? */	96	/* prefer perl internal functions over our own? */
87	#ifndef CORO_PREFER_PERL_FUNCTIONS	97	#ifndef CORO_PREFER_PERL_FUNCTIONS
88	# define CORO_PREFER_PERL_FUNCTIONS 0	98	# define CORO_PREFER_PERL_FUNCTIONS 0
89	#endif	99	#endif
90		100
91	/* The next macro should declare a variable stacklevel that contains and approximation	101	/* The next macros try to return the current stack pointer, in an as
92	* to the current C stack pointer. Its property is that it changes with each call	102	* portable way as possible. */
93	* and should be unique. */
94	#define dSTACKLEVEL int stacklevel	103	#define dSTACKLEVEL volatile char stacklevel
95	#define STACKLEVEL ((void *)&stacklevel)	104	#define STACKLEVEL ((void *)&stacklevel)
96		105
97	#define IN_DESTRUCT (PL_main_cv == Nullcv)	106	#define IN_DESTRUCT (PL_main_cv == Nullcv)
98		107
99	#if __GNUC__ >= 3	108	#if __GNUC__ >= 3
…		…
127	};	136	};
128		137
129	static size_t coro_stacksize = CORO_STACKSIZE;	138	static size_t coro_stacksize = CORO_STACKSIZE;
130	static struct CoroAPI coroapi;	139	static struct CoroAPI coroapi;
131	static AV *main_mainstack; /* used to differentiate between $main and others */	140	static AV *main_mainstack; /* used to differentiate between $main and others */
		141	static JMPENV *main_top_env;
132	static HV *coro_state_stash, *coro_stash;	142	static HV *coro_state_stash, *coro_stash;
133	static SV *coro_mortal; /* will be freed after next transfer */	143	static SV *coro_mortal; /* will be freed after next transfer */
134		144
		145	static GV *irsgv; /* $/ */
		146	static GV *stdoutgv; /* *STDOUT */
		147
		148	/* async_pool helper stuff */
		149	static SV *sv_pool_rss;
		150	static SV *sv_pool_size;
		151	static AV *av_async_pool;
		152
135	static struct coro_cctx *cctx_first;	153	static struct coro_cctx *cctx_first;
136	static int cctx_count, cctx_idle;	154	static int cctx_count, cctx_idle;
		155
		156	enum {
		157	CC_MAPPED = 0x01,
		158	CC_NOREUSE = 0x02, /* throw this away after tracing */
		159	CC_TRACE = 0x04,
		160	CC_TRACE_SUB = 0x08, /* trace sub calls */
		161	CC_TRACE_LINE = 0x10, /* trace each statement */
		162	CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE,
		163	};
137		164
138	/* this is a structure representing a c-level coroutine */	165	/* this is a structure representing a c-level coroutine */
139	typedef struct coro_cctx {	166	typedef struct coro_cctx {
140	struct coro_cctx *next;	167	struct coro_cctx *next;
141		168
…		…
150	coro_context cctx;	177	coro_context cctx;
151		178
152	#if CORO_USE_VALGRIND	179	#if CORO_USE_VALGRIND
153	int valgrind_id;	180	int valgrind_id;
154	#endif	181	#endif
155	char inuse, mapped;	182	unsigned char flags;
156	} coro_cctx;	183	} coro_cctx;
157		184
158	enum {	185	enum {
159	CF_RUNNING = 0x0001, /* coroutine is running */	186	CF_RUNNING = 0x0001, /* coroutine is running */
160	CF_READY = 0x0002, /* coroutine is ready */	187	CF_READY = 0x0002, /* coroutine is ready */
…		…
168	coro_cctx *cctx;	195	coro_cctx *cctx;
169		196
170	/* data associated with this coroutine (initial args) */	197	/* data associated with this coroutine (initial args) */
171	AV *args;	198	AV *args;
172	int refcnt;	199	int refcnt;
173	int save; /* CORO_SAVE flags */
174	int flags; /* CF_ flags */	200	int flags; /* CF_ flags */
175		201
176	/* optionally saved, might be zero */	202	/* optionally saved, might be zero */
177	AV *defav; /* @_ */	203	AV *defav; /* @_ */
178	SV *defsv; /* $_ */	204	SV *defsv; /* $_ */
179	SV *errsv; /* $@ */	205	SV *errsv; /* $@ */
		206	SV *deffh; /* default filehandle */
180	SV *irssv; /* $/ */	207	SV *irssv; /* $/ */
181	SV *irssv_sv; /* real $/ cache */	208	SV *irssv_sv; /* real $/ cache */
182		209
183	#define VAR(name,type) type name;	210	#define VAR(name,type) type name;
184	# include "state.h"	211	# include "state.h"
185	#undef VAR	212	#undef VAR
186		213
		214	/* statistics */
		215	int usecount; /* number of transfers to this coro */
		216
187	/* coro process data */	217	/* coro process data */
188	int prio;	218	int prio;
		219	//SV *throw;
		220
		221	/* async_pool */
		222	SV *saved_deffh;
		223
		224	/* linked list */
		225	struct coro *next, *prev;
		226	HV *hv; /* the perl hash associated with this coro, if any */
189	};	227	};
190		228
191	typedef struct coro *Coro__State;	229	typedef struct coro *Coro__State;
192	typedef struct coro *Coro__State_or_hashref;	230	typedef struct coro *Coro__State_or_hashref;
193		231
…		…
202		240
203	/* for Coro.pm */	241	/* for Coro.pm */
204	static SV *coro_current;	242	static SV *coro_current;
205	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	243	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
206	static int coro_nready;	244	static int coro_nready;
		245	static struct coro *coro_first;
207		246
208	/** lowlevel stuff **********************************************************/	247	/** lowlevel stuff **********************************************************/
209		248
210	static AV *	249	static AV *
211	coro_clone_padlist (CV *cv)	250	coro_clone_padlist (pTHX_ CV *cv)
212	{	251	{
213	AV *padlist = CvPADLIST (cv);	252	AV *padlist = CvPADLIST (cv);
214	AV *newpadlist, *newpad;	253	AV *newpadlist, *newpad;
215		254
216	newpadlist = newAV ();	255	newpadlist = newAV ();
…		…
228		267
229	return newpadlist;	268	return newpadlist;
230	}	269	}
231		270
232	static void	271	static void
233	free_padlist (AV *padlist)	272	free_padlist (pTHX_ AV *padlist)
234	{	273	{
235	/* may be during global destruction */	274	/* may be during global destruction */
236	if (SvREFCNT (padlist))	275	if (SvREFCNT (padlist))
237	{	276	{
238	I32 i = AvFILLp (padlist);	277	I32 i = AvFILLp (padlist);
…		…
259	AV *padlist;	298	AV *padlist;
260	AV *av = (AV *)mg->mg_obj;	299	AV *av = (AV *)mg->mg_obj;
261		300
262	/* casting is fun. */	301	/* casting is fun. */
263	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	302	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
264	free_padlist (padlist);	303	free_padlist (aTHX_ padlist);
265		304
266	SvREFCNT_dec (av);	305	SvREFCNT_dec (av);
267		306
268	return 0;	307	return 0;
269	}	308	}
…		…
277	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	316	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
278	? SvMAGIC (cv) \	317	? SvMAGIC (cv) \
279	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	318	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
280	: 0	319	: 0
281		320
		321	static struct coro *
		322	SvSTATE_ (pTHX_ SV *coro)
		323	{
		324	HV *stash;
		325	MAGIC *mg;
		326
		327	if (SvROK (coro))
		328	coro = SvRV (coro);
		329
		330	if (SvTYPE (coro) != SVt_PVHV)
		331	croak ("Coro::State object required");
		332
		333	stash = SvSTASH (coro);
		334	if (stash != coro_stash && stash != coro_state_stash)
		335	{
		336	/* very slow, but rare, check */
		337	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		338	croak ("Coro::State object required");
		339	}
		340
		341	mg = CORO_MAGIC (coro);
		342	return (struct coro *)mg->mg_ptr;
		343	}
		344
		345	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		346
282	/* the next two functions merely cache the padlists */	347	/* the next two functions merely cache the padlists */
283	static void	348	static void
284	get_padlist (CV *cv)	349	get_padlist (pTHX_ CV *cv)
285	{	350	{
286	MAGIC *mg = CORO_MAGIC (cv);	351	MAGIC *mg = CORO_MAGIC (cv);
287	AV *av;	352	AV *av;
288		353
289	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	354	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
…		…
295	CV *cp = Perl_cv_clone (cv);	360	CV *cp = Perl_cv_clone (cv);
296	CvPADLIST (cv) = CvPADLIST (cp);	361	CvPADLIST (cv) = CvPADLIST (cp);
297	CvPADLIST (cp) = 0;	362	CvPADLIST (cp) = 0;
298	SvREFCNT_dec (cp);	363	SvREFCNT_dec (cp);
299	#else	364	#else
300	CvPADLIST (cv) = coro_clone_padlist (cv);	365	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
301	#endif	366	#endif
302	}	367	}
303	}	368	}
304		369
305	static void	370	static void
306	put_padlist (CV *cv)	371	put_padlist (pTHX_ CV *cv)
307	{	372	{
308	MAGIC *mg = CORO_MAGIC (cv);	373	MAGIC *mg = CORO_MAGIC (cv);
309	AV *av;	374	AV *av;
310		375
311	if (!mg)	376	if (!mg)
…		…
324	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	389	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
325	}	390	}
326		391
327	/** load & save, init *******************************************************/	392	/** load & save, init *******************************************************/
328		393
329	#define SB do {
330	#define SE } while (0)
331
332	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
333
334	static void	394	static void
335	load_perl (Coro__State c)	395	load_perl (pTHX_ Coro__State c)
336	{	396	{
337	#define VAR(name,type) PL_ ## name = c->name;	397	#define VAR(name,type) PL_ ## name = c->name;
338	# include "state.h"	398	# include "state.h"
339	#undef VAR	399	#undef VAR
340		400
341	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	401	GvSV (PL_defgv) = c->defsv;
342	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	402	GvAV (PL_defgv) = c->defav;
343	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	403	GvSV (PL_errgv) = c->errsv;
344	if (c->irssv)	404	GvSV (irsgv) = c->irssv_sv;
345	{
346	if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
347	SvREFCNT_dec (c->irssv);
348	else
349	{
350	REPLACE_SV (PL_rs, c->irssv);
351	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
352	sv_setsv (c->irssv_sv, PL_rs);
353	}
354	}
355		405
356	{	406	{
357	dSP;	407	dSP;
358	CV *cv;	408	CV *cv;
359		409
360	/* now do the ugly restore mess */	410	/* now do the ugly restore mess */
361	while ((cv = (CV *)POPs))	411	while ((cv = (CV *)POPs))
362	{	412	{
363	put_padlist (cv); /* mark this padlist as available */	413	put_padlist (aTHX_ cv); /* mark this padlist as available */
364	CvDEPTH (cv) = PTR2IV (POPs);	414	CvDEPTH (cv) = PTR2IV (POPs);
365	CvPADLIST (cv) = (AV *)POPs;	415	CvPADLIST (cv) = (AV *)POPs;
366	}	416	}
367		417
368	PUTBACK;	418	PUTBACK;
369	}	419	}
370	assert (!PL_comppad || AvARRAY (PL_comppad));//D
371	}	420	}
372		421
373	static void	422	static void
374	save_perl (Coro__State c)	423	save_perl (pTHX_ Coro__State c)
375	{	424	{
376	assert (!PL_comppad || AvARRAY (PL_comppad));//D
377	{	425	{
378	dSP;	426	dSP;
379	I32 cxix = cxstack_ix;	427	I32 cxix = cxstack_ix;
380	PERL_CONTEXT *ccstk = cxstack;	428	PERL_CONTEXT *ccstk = cxstack;
381	PERL_SI *top_si = PL_curstackinfo;	429	PERL_SI *top_si = PL_curstackinfo;
…		…
383	/*	431	/*
384	* the worst thing you can imagine happens first - we have to save	432	* the worst thing you can imagine happens first - we have to save
385	* (and reinitialize) all cv's in the whole callchain :(	433	* (and reinitialize) all cv's in the whole callchain :(
386	*/	434	*/
387		435
388	EXTEND (SP, 3 + 1);
389	PUSHs (Nullsv);	436	XPUSHs (Nullsv);
390	/* this loop was inspired by pp_caller */	437	/* this loop was inspired by pp_caller */
391	for (;;)	438	for (;;)
392	{	439	{
393	while (cxix >= 0)	440	while (cxix >= 0)
394	{	441	{
395	PERL_CONTEXT *cx = &ccstk[cxix--];	442	PERL_CONTEXT *cx = &ccstk[cxix--];
396		443
397	if (CxTYPE (cx) == CXt_SUB)	444	if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)
398	{	445	{
399	CV *cv = cx->blk_sub.cv;	446	CV *cv = cx->blk_sub.cv;
400		447
401	if (CvDEPTH (cv))	448	if (CvDEPTH (cv))
402	{	449	{
…		…
404	PUSHs ((SV *)CvPADLIST (cv));	451	PUSHs ((SV *)CvPADLIST (cv));
405	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	452	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
406	PUSHs ((SV *)cv);	453	PUSHs ((SV *)cv);
407		454
408	CvDEPTH (cv) = 0;	455	CvDEPTH (cv) = 0;
409	get_padlist (cv);	456	get_padlist (aTHX_ cv);
410	}	457	}
411	}	458	}
412	}	459	}
413		460
414	if (top_si->si_type == PERLSI_MAIN)	461	if (top_si->si_type == PERLSI_MAIN)
415	break;	462	break;
416		463
417	top_si = top_si->si_prev;	464	top_si = top_si->si_prev;
418	ccstk = top_si->si_cxstack;	465	ccstk = top_si->si_cxstack;
419	cxix = top_si->si_cxix;	466	cxix = top_si->si_cxix;
420	}	467	}
421		468
422	PUTBACK;	469	PUTBACK;
423	}	470	}
424		471
425	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	472	c->defav = GvAV (PL_defgv);
426	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	473	c->defsv = DEFSV;
427	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	474	c->errsv = ERRSV;
428	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	475	c->irssv_sv = GvSV (irsgv);
429		476
430	#define VAR(name,type)c->name = PL_ ## name;	477	#define VAR(name,type)c->name = PL_ ## name;
431	# include "state.h"	478	# include "state.h"
432	#undef VAR	479	#undef VAR
433	}	480	}
…		…
440	*/	487	*/
441	#if CORO_PREFER_PERL_FUNCTIONS	488	#if CORO_PREFER_PERL_FUNCTIONS
442	# define coro_init_stacks init_stacks	489	# define coro_init_stacks init_stacks
443	#else	490	#else
444	static void	491	static void
445	coro_init_stacks ()	492	coro_init_stacks (pTHX)
446	{	493	{
447	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	494	PL_curstackinfo = new_stackinfo(64, 6);
448	PL_curstackinfo->si_type = PERLSI_MAIN;	495	PL_curstackinfo->si_type = PERLSI_MAIN;
449	PL_curstack = PL_curstackinfo->si_stack;	496	PL_curstack = PL_curstackinfo->si_stack;
450	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	497	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
451		498
452	PL_stack_base = AvARRAY(PL_curstack);	499	PL_stack_base = AvARRAY(PL_curstack);
453	PL_stack_sp = PL_stack_base;	500	PL_stack_sp = PL_stack_base;
454	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	501	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
455		502
456	New(50,PL_tmps_stack,128,SV*);	503	New(50,PL_tmps_stack,64,SV*);
457	PL_tmps_floor = -1;	504	PL_tmps_floor = -1;
458	PL_tmps_ix = -1;	505	PL_tmps_ix = -1;
459	PL_tmps_max = 128;	506	PL_tmps_max = 64;
460		507
461	New(54,PL_markstack,32,I32);	508	New(54,PL_markstack,16,I32);
462	PL_markstack_ptr = PL_markstack;	509	PL_markstack_ptr = PL_markstack;
463	PL_markstack_max = PL_markstack + 32;	510	PL_markstack_max = PL_markstack + 16;
464		511
465	#ifdef SET_MARK_OFFSET	512	#ifdef SET_MARK_OFFSET
466	SET_MARK_OFFSET;	513	SET_MARK_OFFSET;
467	#endif	514	#endif
468		515
469	New(54,PL_scopestack,32,I32);	516	New(54,PL_scopestack,16,I32);
470	PL_scopestack_ix = 0;	517	PL_scopestack_ix = 0;
471	PL_scopestack_max = 32;	518	PL_scopestack_max = 16;
472		519
473	New(54,PL_savestack,64,ANY);	520	New(54,PL_savestack,64,ANY);
474	PL_savestack_ix = 0;	521	PL_savestack_ix = 0;
475	PL_savestack_max = 64;	522	PL_savestack_max = 64;
476		523
477	#if !PERL_VERSION_ATLEAST (5,9,0)	524	#if !PERL_VERSION_ATLEAST (5,9,0)
478	New(54,PL_retstack,16,OP*);	525	New(54,PL_retstack,4,OP*);
479	PL_retstack_ix = 0;	526	PL_retstack_ix = 0;
480	PL_retstack_max = 16;	527	PL_retstack_max = 4;
481	#endif	528	#endif
482	}	529	}
483	#endif	530	#endif
484		531
485	/*	532	/*
486	* destroy the stacks, the callchain etc...	533	* destroy the stacks, the callchain etc...
487	*/	534	*/
488	static void	535	static void
489	coro_destroy_stacks ()	536	coro_destroy_stacks (pTHX)
490	{	537	{
491	if (!IN_DESTRUCT)
492	{
493	/* restore all saved variables and stuff */
494	LEAVE_SCOPE (0);
495	assert (PL_tmps_floor == -1);
496
497	/* free all temporaries */
498	FREETMPS;
499	assert (PL_tmps_ix == -1);
500
501	/* unwind all extra stacks */
502	POPSTACK_TO (PL_mainstack);
503
504	/* unwind main stack */
505	dounwind (-1);
506	}
507
508	while (PL_curstackinfo->si_next)	538	while (PL_curstackinfo->si_next)
509	PL_curstackinfo = PL_curstackinfo->si_next;	539	PL_curstackinfo = PL_curstackinfo->si_next;
510		540
511	while (PL_curstackinfo)	541	while (PL_curstackinfo)
512	{	542	{
…		…
527	#if !PERL_VERSION_ATLEAST (5,9,0)	557	#if !PERL_VERSION_ATLEAST (5,9,0)
528	Safefree (PL_retstack);	558	Safefree (PL_retstack);
529	#endif	559	#endif
530	}	560	}
531		561
		562	static size_t
		563	coro_rss (pTHX_ struct coro *coro)
		564	{
		565	size_t rss = sizeof (*coro);
		566
		567	if (coro->mainstack)
		568	{
		569	if (coro->flags & CF_RUNNING)
		570	{
		571	#define VAR(name,type)coro->name = PL_ ## name;
		572	# include "state.h"
		573	#undef VAR
		574	}
		575
		576	rss += sizeof (coro->curstackinfo);
		577	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		578	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		579	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		580	rss += coro->tmps_max * sizeof (SV *);
		581	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		582	rss += coro->scopestack_max * sizeof (I32);
		583	rss += coro->savestack_max * sizeof (ANY);
		584
		585	#if !PERL_VERSION_ATLEAST (5,9,0)
		586	rss += coro->retstack_max * sizeof (OP *);
		587	#endif
		588	}
		589
		590	return rss;
		591	}
		592
532	/** coroutine stack handling ************************************************/	593	/** coroutine stack handling ************************************************/
533		594
534	static void	595	static void
535	setup_coro (struct coro *coro)	596	coro_setup (pTHX_ struct coro *coro)
536	{	597	{
537	/*	598	/*
538	* emulate part of the perl startup here.	599	* emulate part of the perl startup here.
539	*/	600	*/
540
541	coro_init_stacks ();	601	coro_init_stacks (aTHX);
542		602
		603	PL_runops = RUNOPS_DEFAULT;
543	PL_curcop = &PL_compiling;	604	PL_curcop = &PL_compiling;
544	PL_in_eval = EVAL_NULL;	605	PL_in_eval = EVAL_NULL;
545	PL_comppad = 0;	606	PL_comppad = 0;
546	PL_curpm = 0;	607	PL_curpm = 0;
547	PL_localizing = 0;	608	PL_localizing = 0;
548	PL_dirty = 0;	609	PL_dirty = 0;
549	PL_restartop = 0;	610	PL_restartop = 0;
		611
		612	GvSV (PL_defgv) = newSV (0);
		613	GvAV (PL_defgv) = coro->args; coro->args = 0;
		614	GvSV (PL_errgv) = newSV (0);
		615	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		616	PL_rs = newSVsv (GvSV (irsgv));
		617	PL_defoutgv = SvREFCNT_inc (stdoutgv);
550		618
551	{	619	{
552	dSP;	620	dSP;
553	LOGOP myop;	621	LOGOP myop;
554		622
555	SvREFCNT_dec (GvAV (PL_defgv));
556	GvAV (PL_defgv) = coro->args; coro->args = 0;
557
558	Zero (&myop, 1, LOGOP);	623	Zero (&myop, 1, LOGOP);
559	myop.op_next = Nullop;	624	myop.op_next = Nullop;
560	myop.op_flags = OPf_WANT_VOID;	625	myop.op_flags = OPf_WANT_VOID;
561		626
562	PUSHMARK (SP);	627	PUSHMARK (SP);
563	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	628	XPUSHs (av_shift (GvAV (PL_defgv)));
564	PUTBACK;	629	PUTBACK;
565	PL_op = (OP *)&myop;	630	PL_op = (OP *)&myop;
566	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	631	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
567	SPAGAIN;	632	SPAGAIN;
568	}	633	}
569		634
570	ENTER; /* necessary e.g. for dounwind */	635	ENTER; /* necessary e.g. for dounwind */
571	}	636	}
572		637
573	static void	638	static void
		639	coro_destroy (pTHX_ struct coro *coro)
		640	{
		641	if (!IN_DESTRUCT)
		642	{
		643	/* restore all saved variables and stuff */
		644	LEAVE_SCOPE (0);
		645	assert (PL_tmps_floor == -1);
		646
		647	/* free all temporaries */
		648	FREETMPS;
		649	assert (PL_tmps_ix == -1);
		650
		651	/* unwind all extra stacks */
		652	POPSTACK_TO (PL_mainstack);
		653
		654	/* unwind main stack */
		655	dounwind (-1);
		656	}
		657
		658	SvREFCNT_dec (GvSV (PL_defgv));
		659	SvREFCNT_dec (GvAV (PL_defgv));
		660	SvREFCNT_dec (GvSV (PL_errgv));
		661	SvREFCNT_dec (PL_defoutgv);
		662	SvREFCNT_dec (PL_rs);
		663	SvREFCNT_dec (GvSV (irsgv));
		664
		665	SvREFCNT_dec (coro->saved_deffh);
		666	//SvREFCNT_dec (coro->throw);
		667
		668	coro_destroy_stacks (aTHX);
		669	}
		670
		671	static void
574	free_coro_mortal ()	672	free_coro_mortal (pTHX)
575	{	673	{
576	if (coro_mortal)	674	if (coro_mortal)
577	{	675	{
578	SvREFCNT_dec (coro_mortal);	676	SvREFCNT_dec (coro_mortal);
579	coro_mortal = 0;	677	coro_mortal = 0;
580	}	678	}
581	}	679	}
582		680
		681	static int
		682	runops_trace (pTHX)
		683	{
		684	COP *oldcop = 0;
		685	int oldcxix = -2;
		686	struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
		687	coro_cctx *cctx = coro->cctx;
		688
		689	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		690	{
		691	PERL_ASYNC_CHECK ();
		692
		693	if (cctx->flags & CC_TRACE_ALL)
		694	{
		695	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		696	{
		697	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		698	SV **bot, **top;
		699	AV *av = newAV (); /* return values */
		700	SV **cb;
		701	dSP;
		702
		703	GV *gv = CvGV (cx->blk_sub.cv);
		704	SV *fullname = sv_2mortal (newSV (0));
		705	if (isGV (gv))
		706	gv_efullname3 (fullname, gv, 0);
		707
		708	bot = PL_stack_base + cx->blk_oldsp + 1;
		709	top = cx->blk_gimme == G_ARRAY ? SP + 1
		710	: cx->blk_gimme == G_SCALAR ? bot + 1
		711	: bot;
		712
		713	while (bot < top)
		714	av_push (av, SvREFCNT_inc (*bot++));
		715
		716	PL_runops = RUNOPS_DEFAULT;
		717	ENTER;
		718	SAVETMPS;
		719	EXTEND (SP, 3);
		720	PUSHMARK (SP);
		721	PUSHs (&PL_sv_no);
		722	PUSHs (fullname);
		723	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		724	PUTBACK;
		725	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		726	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		727	SPAGAIN;
		728	FREETMPS;
		729	LEAVE;
		730	PL_runops = runops_trace;
		731	}
		732
		733	if (oldcop != PL_curcop)
		734	{
		735	oldcop = PL_curcop;
		736
		737	if (PL_curcop != &PL_compiling)
		738	{
		739	SV **cb;
		740
		741	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		742	{
		743	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		744
		745	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		746	{
		747	runops_proc_t old_runops = PL_runops;
		748	dSP;
		749	GV *gv = CvGV (cx->blk_sub.cv);
		750	SV *fullname = sv_2mortal (newSV (0));
		751
		752	if (isGV (gv))
		753	gv_efullname3 (fullname, gv, 0);
		754
		755	PL_runops = RUNOPS_DEFAULT;
		756	ENTER;
		757	SAVETMPS;
		758	EXTEND (SP, 3);
		759	PUSHMARK (SP);
		760	PUSHs (&PL_sv_yes);
		761	PUSHs (fullname);
		762	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		763	PUTBACK;
		764	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		765	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		766	SPAGAIN;
		767	FREETMPS;
		768	LEAVE;
		769	PL_runops = runops_trace;
		770	}
		771
		772	oldcxix = cxstack_ix;
		773	}
		774
		775	if (cctx->flags & CC_TRACE_LINE)
		776	{
		777	dSP;
		778
		779	PL_runops = RUNOPS_DEFAULT;
		780	ENTER;
		781	SAVETMPS;
		782	EXTEND (SP, 3);
		783	PL_runops = RUNOPS_DEFAULT;
		784	PUSHMARK (SP);
		785	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		786	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		787	PUTBACK;
		788	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		789	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		790	SPAGAIN;
		791	FREETMPS;
		792	LEAVE;
		793	PL_runops = runops_trace;
		794	}
		795	}
		796	}
		797	}
		798	}
		799
		800	TAINT_NOT;
		801	return 0;
		802	}
		803
583	/* inject a fake call to Coro::State::_cctx_init into the execution */	804	/* inject a fake call to Coro::State::_cctx_init into the execution */
		805	/* _cctx_init should be careful, as it could be called at almost any time */
		806	/* during execution of a perl program */
584	static void NOINLINE	807	static void NOINLINE
585	prepare_cctx (coro_cctx *cctx)	808	prepare_cctx (pTHX_ coro_cctx *cctx)
586	{	809	{
587	dSP;	810	dSP;
588	LOGOP myop;	811	LOGOP myop;
		812
		813	PL_top_env = &PL_start_env;
		814
		815	if (cctx->flags & CC_TRACE)
		816	PL_runops = runops_trace;
589		817
590	Zero (&myop, 1, LOGOP);	818	Zero (&myop, 1, LOGOP);
591	myop.op_next = PL_op;	819	myop.op_next = PL_op;
592	myop.op_flags = OPf_WANT_VOID | OPf_STACKED;	820	myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
593		821
…		…
599	PL_op = (OP *)&myop;	827	PL_op = (OP *)&myop;
600	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	828	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
601	SPAGAIN;	829	SPAGAIN;
602	}	830	}
603		831
		832	/*
		833	* this is a _very_ stripped down perl interpreter ;)
		834	*/
604	static void	835	static void
605	coro_run (void *arg)	836	coro_run (void *arg)
606	{	837	{
		838	dTHX;
		839
607	/* coro_run is the alternative tail of transfer(), so unlock here. */	840	/* coro_run is the alternative tail of transfer(), so unlock here. */
608	UNLOCK;	841	UNLOCK;
609		842
610	/*	843	/* we now skip the entersub that lead to transfer() */
611	* this is a _very_ stripped down perl interpreter ;)	844	PL_op = PL_op->op_next;
612	*/
613	PL_top_env = &PL_start_env;
614		845
615	/* inject call to cctx_init */	846	/* inject a fake subroutine call to cctx_init */
616	prepare_cctx ((coro_cctx *)arg);	847	prepare_cctx (aTHX_ (coro_cctx *)arg);
617		848
618	/* somebody will hit me for both perl_run and PL_restartop */	849	/* somebody or something will hit me for both perl_run and PL_restartop */
619	PL_restartop = PL_op;	850	PL_restartop = PL_op;
620	perl_run (PL_curinterp);	851	perl_run (PL_curinterp);
621		852
622	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	853	/*
623	abort ();	854	* If perl-run returns we assume exit() was being called or the coro
		855	* fell off the end, which seems to be the only valid (non-bug)
		856	* reason for perl_run to return. We try to exit by jumping to the
		857	* bootstrap-time "top" top_env, as we cannot restore the "main"
		858	* coroutine as Coro has no such concept
		859	*/
		860	PL_top_env = main_top_env;
		861	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
624	}	862	}
625		863
626	static coro_cctx *	864	static coro_cctx *
627	cctx_new ()	865	cctx_new ()
628	{	866	{
…		…
645	# if CORO_STACKGUARD	883	# if CORO_STACKGUARD
646	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	884	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
647	# endif	885	# endif
648	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	886	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
649	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	887	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
650	cctx->mapped = 1;	888	cctx->flags |= CC_MAPPED;
651	}	889	}
652	else	890	else
653	#endif	891	#endif
654	{	892	{
655	cctx->ssize = coro_stacksize * (long)sizeof (long);	893	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
682	#if CORO_USE_VALGRIND	920	#if CORO_USE_VALGRIND
683	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	921	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
684	#endif	922	#endif
685		923
686	#if HAVE_MMAP	924	#if HAVE_MMAP
687	if (cctx->mapped)	925	if (cctx->flags & CC_MAPPED)
688	munmap (cctx->sptr, cctx->ssize);	926	munmap (cctx->sptr, cctx->ssize);
689	else	927	else
690	#endif	928	#endif
691	Safefree (cctx->sptr);	929	Safefree (cctx->sptr);
692		930
693	Safefree (cctx);	931	Safefree (cctx);
694	}	932	}
695		933
696	static coro_cctx *	934	static coro_cctx *
697	cctx_get ()	935	cctx_get (pTHX)
698	{	936	{
699	while (cctx_first)	937	while (cctx_first)
700	{	938	{
701	coro_cctx *cctx = cctx_first;	939	coro_cctx *cctx = cctx_first;
702	cctx_first = cctx->next;	940	cctx_first = cctx->next;
703	--cctx_idle;	941	--cctx_idle;
704		942
705	if (cctx->ssize >= coro_stacksize)	943	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
706	return cctx;	944	return cctx;
707		945
708	cctx_destroy (cctx);	946	cctx_destroy (cctx);
709	}	947	}
710		948
711	PL_op = PL_op->op_next;
712	return cctx_new ();	949	return cctx_new ();
713	}	950	}
714		951
715	static void	952	static void
716	cctx_put (coro_cctx *cctx)	953	cctx_put (coro_cctx *cctx)
…		…
720	{	957	{
721	coro_cctx *first = cctx_first;	958	coro_cctx *first = cctx_first;
722	cctx_first = first->next;	959	cctx_first = first->next;
723	--cctx_idle;	960	--cctx_idle;
724		961
725	assert (!first->inuse);
726	cctx_destroy (first);	962	cctx_destroy (first);
727	}	963	}
728		964
729	++cctx_idle;	965	++cctx_idle;
730	cctx->next = cctx_first;	966	cctx->next = cctx_first;
731	cctx_first = cctx;	967	cctx_first = cctx;
732	}	968	}
733		969
734	/** coroutine switching *****************************************************/	970	/** coroutine switching *****************************************************/
735		971
736	/* never call directly, always through the coro_state_transfer global variable */
737	static void NOINLINE	972	static void NOINLINE
		973	transfer_check (pTHX_ struct coro *prev, struct coro *next)
		974	{
		975	if (prev != next)
		976	{
		977	if (!(prev->flags & (CF_RUNNING | CF_NEW)))
		978	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		979
		980	if (next->flags & CF_RUNNING)
		981	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		982
		983	if (next->flags & CF_DESTROYED)
		984	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		985
		986	if (PL_lex_state != LEX_NOTPARSING)
		987	croak ("Coro::State::transfer called while parsing, but this is not supported");
		988	}
		989	}
		990
		991	/* always use the TRANSFER macro */
		992	static void NOINLINE
738	transfer (struct coro *prev, struct coro *next)	993	transfer (pTHX_ struct coro *prev, struct coro *next)
739	{	994	{
740	dSTACKLEVEL;	995	dSTACKLEVEL;
741		996
742	/* sometimes transfer is only called to set idle_sp */	997	/* sometimes transfer is only called to set idle_sp */
743	if (!next)	998	if (!next)
…		…
751		1006
752	if (prev->flags & CF_NEW)	1007	if (prev->flags & CF_NEW)
753	{	1008	{
754	/* create a new empty context */	1009	/* create a new empty context */
755	Newz (0, prev->cctx, 1, coro_cctx);	1010	Newz (0, prev->cctx, 1, coro_cctx);
756	prev->cctx->inuse = 1;
757	prev->flags &= ~CF_NEW;	1011	prev->flags &= ~CF_NEW;
758	prev->flags |= CF_RUNNING;	1012	prev->flags |= CF_RUNNING;
759	}	1013	}
760
761	/*TODO: must not croak here */
762	if (!prev->flags & CF_RUNNING)
763	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
764
765	if (next->flags & CF_RUNNING)
766	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
767
768	if (next->flags & CF_DESTROYED)
769	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
770		1014
771	prev->flags &= ~CF_RUNNING;	1015	prev->flags &= ~CF_RUNNING;
772	next->flags |= CF_RUNNING;	1016	next->flags |= CF_RUNNING;
773		1017
774	LOCK;	1018	LOCK;
…		…
776	if (next->flags & CF_NEW)	1020	if (next->flags & CF_NEW)
777	{	1021	{
778	/* need to start coroutine */	1022	/* need to start coroutine */
779	next->flags &= ~CF_NEW;	1023	next->flags &= ~CF_NEW;
780	/* first get rid of the old state */	1024	/* first get rid of the old state */
781	save_perl (prev);	1025	save_perl (aTHX_ prev);
782	/* setup coroutine call */	1026	/* setup coroutine call */
783	setup_coro (next);	1027	coro_setup (aTHX_ next);
784	/* need a new stack */
785	assert (!next->cctx);
786	}	1028	}
787	else	1029	else
788	{	1030	{
789	/* coroutine already started */	1031	/* coroutine already started */
790	save_perl (prev);	1032	save_perl (aTHX_ prev);
791	load_perl (next);	1033	load_perl (aTHX_ next);
792	}	1034	}
793		1035
794	prev__cctx = prev->cctx;	1036	prev__cctx = prev->cctx;
795		1037
796	/* possibly "free" the cctx */	1038	/* possibly "free" the cctx */
797	if (prev__cctx->idle_sp == STACKLEVEL)	1039	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
798	{	1040	{
799	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1041	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
800	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1042	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
801		1043
802	prev->cctx = 0;	1044	prev->cctx = 0;
803		1045
804	cctx_put (prev__cctx);	1046	cctx_put (prev__cctx);
805	prev__cctx->inuse = 0;
806	}	1047	}
807		1048
		1049	++next->usecount;
		1050
808	if (!next->cctx)	1051	if (!next->cctx)
809	{
810	next->cctx = cctx_get ();	1052	next->cctx = cctx_get (aTHX);
811	assert (!next->cctx->inuse);
812	next->cctx->inuse = 1;
813	}
814		1053
815	if (prev__cctx != next->cctx)	1054	if (prev__cctx != next->cctx)
816	{	1055	{
817	prev__cctx->top_env = PL_top_env;	1056	prev__cctx->top_env = PL_top_env;
818	PL_top_env = next->cctx->top_env;	1057	PL_top_env = next->cctx->top_env;
819	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1058	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
820	}	1059	}
821		1060
822	free_coro_mortal ();	1061	free_coro_mortal (aTHX);
823	UNLOCK;	1062	UNLOCK;
824	}	1063	}
825	}	1064	}
826		1065
827	struct transfer_args	1066	struct transfer_args
828	{	1067	{
829	struct coro *prev, *next;	1068	struct coro *prev, *next;
830	};	1069	};
831		1070
832	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	1071	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1072	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
833		1073
834	/** high level stuff ********************************************************/	1074	/** high level stuff ********************************************************/
835		1075
836	static int	1076	static int
837	coro_state_destroy (struct coro *coro)	1077	coro_state_destroy (pTHX_ struct coro *coro)
838	{	1078	{
839	if (coro->flags & CF_DESTROYED)	1079	if (coro->flags & CF_DESTROYED)
840	return 0;	1080	return 0;
841		1081
842	coro->flags |= CF_DESTROYED;	1082	coro->flags |= CF_DESTROYED;
…		…
854		1094
855	if (coro->mainstack && coro->mainstack != main_mainstack)	1095	if (coro->mainstack && coro->mainstack != main_mainstack)
856	{	1096	{
857	struct coro temp;	1097	struct coro temp;
858		1098
859	assert (!(coro->flags & CF_RUNNING));
860
861	Zero (&temp, 1, struct coro);
862	temp.save = CORO_SAVE_ALL;
863
864	if (coro->flags & CF_RUNNING)	1099	if (coro->flags & CF_RUNNING)
865	croak ("FATAL: tried to destroy currently running coroutine");	1100	croak ("FATAL: tried to destroy currently running coroutine");
866		1101
867	save_perl (&temp);	1102	save_perl (aTHX_ &temp);
868	load_perl (coro);	1103	load_perl (aTHX_ coro);
869		1104
870	coro_destroy_stacks ();	1105	coro_destroy (aTHX_ coro);
871		1106
872	load_perl (&temp); /* this will get rid of defsv etc.. */	1107	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
873		1108
874	coro->mainstack = 0;	1109	coro->mainstack = 0;
875	}	1110	}
876		1111
877	cctx_destroy (coro->cctx);	1112	cctx_destroy (coro->cctx);
878	SvREFCNT_dec (coro->args);	1113	SvREFCNT_dec (coro->args);
879		1114
		1115	if (coro->next) coro->next->prev = coro->prev;
		1116	if (coro->prev) coro->prev->next = coro->next;
		1117	if (coro == coro_first) coro_first = coro->next;
		1118
880	return 1;	1119	return 1;
881	}	1120	}
882		1121
883	static int	1122	static int
884	coro_state_free (pTHX_ SV *sv, MAGIC *mg)	1123	coro_state_free (pTHX_ SV *sv, MAGIC *mg)
885	{	1124	{
886	struct coro *coro = (struct coro *)mg->mg_ptr;	1125	struct coro *coro = (struct coro *)mg->mg_ptr;
887	mg->mg_ptr = 0;	1126	mg->mg_ptr = 0;
888		1127
		1128	coro->hv = 0;
		1129
889	if (--coro->refcnt < 0)	1130	if (--coro->refcnt < 0)
890	{	1131	{
891	coro_state_destroy (coro);	1132	coro_state_destroy (aTHX_ coro);
892	Safefree (coro);	1133	Safefree (coro);
893	}	1134	}
894		1135
895	return 0;	1136	return 0;
896	}	1137	}
…		…
914	#else	1155	#else
915	# define MGf_DUP 0	1156	# define MGf_DUP 0
916	#endif	1157	#endif
917	};	1158	};
918		1159
919	static struct coro *
920	SvSTATE (SV *coro)
921	{
922	HV *stash;
923	MAGIC *mg;
924
925	if (SvROK (coro))
926	coro = SvRV (coro);
927
928	stash = SvSTASH (coro);
929	if (stash != coro_stash && stash != coro_state_stash)
930	{
931	/* very slow, but rare, check */
932	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
933	croak ("Coro::State object required");
934	}
935
936	mg = CORO_MAGIC (coro);
937	return (struct coro *)mg->mg_ptr;
938	}
939
940	static void	1160	static void
941	prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv)	1161	prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
942	{	1162	{
943	ta->prev = SvSTATE (prev_sv);	1163	ta->prev = SvSTATE (prev_sv);
944	ta->next = SvSTATE (next_sv);	1164	ta->next = SvSTATE (next_sv);
		1165	TRANSFER_CHECK (*ta);
945	}	1166	}
946		1167
947	static void	1168	static void
948	api_transfer (SV *prev_sv, SV *next_sv)	1169	api_transfer (SV *prev_sv, SV *next_sv)
949	{	1170	{
		1171	dTHX;
950	struct transfer_args ta;	1172	struct transfer_args ta;
951		1173
952	prepare_transfer (&ta, prev_sv, next_sv);	1174	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
953	TRANSFER (ta);	1175	TRANSFER (ta);
954	}	1176	}
955		1177
956	static int
957	api_save (SV *coro_sv, int new_save)
958	{
959	struct coro *coro = SvSTATE (coro_sv);
960	int old_save = coro->save;
961
962	if (new_save >= 0)
963	coro->save = new_save;
964
965	return old_save;
966	}
967
968	/** Coro ********************************************************************/	1178	/** Coro ********************************************************************/
969		1179
970	static void	1180	static void
971	coro_enq (SV *coro_sv)	1181	coro_enq (pTHX_ SV *coro_sv)
972	{	1182	{
973	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1183	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
974	}	1184	}
975		1185
976	static SV *	1186	static SV *
977	coro_deq (int min_prio)	1187	coro_deq (pTHX_ int min_prio)
978	{	1188	{
979	int prio = PRIO_MAX - PRIO_MIN;	1189	int prio = PRIO_MAX - PRIO_MIN;
980		1190
981	min_prio -= PRIO_MIN;	1191	min_prio -= PRIO_MIN;
982	if (min_prio < 0)	1192	if (min_prio < 0)
…		…
990	}	1200	}
991		1201
992	static int	1202	static int
993	api_ready (SV *coro_sv)	1203	api_ready (SV *coro_sv)
994	{	1204	{
		1205	dTHX;
995	struct coro *coro;	1206	struct coro *coro;
996		1207
997	if (SvROK (coro_sv))	1208	if (SvROK (coro_sv))
998	coro_sv = SvRV (coro_sv);	1209	coro_sv = SvRV (coro_sv);
999		1210
…		…
1003	return 0;	1214	return 0;
1004		1215
1005	coro->flags |= CF_READY;	1216	coro->flags |= CF_READY;
1006		1217
1007	LOCK;	1218	LOCK;
1008	coro_enq (SvREFCNT_inc (coro_sv));	1219	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1009	++coro_nready;	1220	++coro_nready;
1010	UNLOCK;	1221	UNLOCK;
1011		1222
1012	return 1;	1223	return 1;
1013	}	1224	}
1014		1225
1015	static int	1226	static int
1016	api_is_ready (SV *coro_sv)	1227	api_is_ready (SV *coro_sv)
1017	{	1228	{
		1229	dTHX;
1018	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1230	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1019	}	1231	}
1020		1232
1021	static void	1233	static void
1022	prepare_schedule (struct transfer_args *ta)	1234	prepare_schedule (pTHX_ struct transfer_args *ta)
1023	{	1235	{
1024	SV *prev_sv, *next_sv;	1236	SV *prev_sv, *next_sv;
1025		1237
1026	for (;;)	1238	for (;;)
1027	{	1239	{
1028	LOCK;	1240	LOCK;
1029	next_sv = coro_deq (PRIO_MIN);	1241	next_sv = coro_deq (aTHX_ PRIO_MIN);
1030		1242
1031	/* nothing to schedule: call the idle handler */	1243	/* nothing to schedule: call the idle handler */
1032	if (!next_sv)	1244	if (!next_sv)
1033	{	1245	{
1034	dSP;	1246	dSP;
…		…
1062	break;	1274	break;
1063	}	1275	}
1064		1276
1065	/* free this only after the transfer */	1277	/* free this only after the transfer */
1066	prev_sv = SvRV (coro_current);	1278	prev_sv = SvRV (coro_current);
1067	SvRV_set (coro_current, next_sv);
1068	ta->prev = SvSTATE (prev_sv);	1279	ta->prev = SvSTATE (prev_sv);
1069		1280	TRANSFER_CHECK (*ta);
1070	assert (ta->next->flags & CF_READY);	1281	assert (ta->next->flags & CF_READY);
1071	ta->next->flags &= ~CF_READY;	1282	ta->next->flags &= ~CF_READY;
		1283	SvRV_set (coro_current, next_sv);
1072		1284
1073	LOCK;	1285	LOCK;
1074	free_coro_mortal ();	1286	free_coro_mortal (aTHX);
1075	coro_mortal = prev_sv;	1287	coro_mortal = prev_sv;
1076	UNLOCK;	1288	UNLOCK;
1077	}	1289	}
1078		1290
1079	static void	1291	static void
1080	prepare_cede (struct transfer_args *ta)	1292	prepare_cede (pTHX_ struct transfer_args *ta)
1081	{	1293	{
1082	api_ready (coro_current);	1294	api_ready (coro_current);
1083	prepare_schedule (ta);	1295	prepare_schedule (aTHX_ ta);
1084	}	1296	}
1085		1297
1086	static int	1298	static int
1087	prepare_cede_notself (struct transfer_args *ta)	1299	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1088	{	1300	{
1089	if (coro_nready)	1301	if (coro_nready)
1090	{	1302	{
1091	SV *prev = SvRV (coro_current);	1303	SV *prev = SvRV (coro_current);
1092	prepare_schedule (ta);	1304	prepare_schedule (aTHX_ ta);
1093	api_ready (prev);	1305	api_ready (prev);
1094	return 1;	1306	return 1;
1095	}	1307	}
1096	else	1308	else
1097	return 0;	1309	return 0;
1098	}	1310	}
1099		1311
1100	static void	1312	static void
1101	api_schedule (void)	1313	api_schedule (void)
1102	{	1314	{
		1315	dTHX;
1103	struct transfer_args ta;	1316	struct transfer_args ta;
1104		1317
1105	prepare_schedule (&ta);	1318	prepare_schedule (aTHX_ &ta);
1106	TRANSFER (ta);	1319	TRANSFER (ta);
1107	}	1320	}
1108		1321
1109	static int	1322	static int
1110	api_cede (void)	1323	api_cede (void)
1111	{	1324	{
		1325	dTHX;
1112	struct transfer_args ta;	1326	struct transfer_args ta;
1113		1327
1114	prepare_cede (&ta);	1328	prepare_cede (aTHX_ &ta);
1115		1329
1116	if (ta.prev != ta.next)	1330	if (ta.prev != ta.next)
1117	{	1331	{
1118	TRANSFER (ta);	1332	TRANSFER (ta);
1119	return 1;	1333	return 1;
…		…
1123	}	1337	}
1124		1338
1125	static int	1339	static int
1126	api_cede_notself (void)	1340	api_cede_notself (void)
1127	{	1341	{
		1342	dTHX;
1128	struct transfer_args ta;	1343	struct transfer_args ta;
1129		1344
1130	if (prepare_cede_notself (&ta))	1345	if (prepare_cede_notself (aTHX_ &ta))
1131	{	1346	{
1132	TRANSFER (ta);	1347	TRANSFER (ta);
1133	return 1;	1348	return 1;
1134	}	1349	}
1135	else	1350	else
1136	return 0;	1351	return 0;
1137	}	1352	}
1138		1353
		1354	static void
		1355	api_trace (SV *coro_sv, int flags)
		1356	{
		1357	dTHX;
		1358	struct coro *coro = SvSTATE (coro_sv);
		1359
		1360	if (flags & CC_TRACE)
		1361	{
		1362	if (!coro->cctx)
		1363	coro->cctx = cctx_new ();
		1364	else if (!(coro->cctx->flags & CC_TRACE))
		1365	croak ("cannot enable tracing on coroutine with custom stack");
		1366
		1367	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
		1368	}
		1369	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1370	{
		1371	coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
		1372
		1373	if (coro->flags & CF_RUNNING)
		1374	PL_runops = RUNOPS_DEFAULT;
		1375	else
		1376	coro->runops = RUNOPS_DEFAULT;
		1377	}
		1378	}
		1379
1139	MODULE = Coro::State PACKAGE = Coro::State	1380	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1140		1381
1141	PROTOTYPES: DISABLE	1382	PROTOTYPES: DISABLE
1142		1383
1143	BOOT:	1384	BOOT:
1144	{	1385	{
1145	#ifdef USE_ITHREADS	1386	#ifdef USE_ITHREADS
1146	MUTEX_INIT (&coro_mutex);	1387	MUTEX_INIT (&coro_mutex);
1147	#endif	1388	#endif
1148	BOOT_PAGESIZE;	1389	BOOT_PAGESIZE;
1149		1390
		1391	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
		1392	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
		1393
1150	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1394	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1151		1395
		1396	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1397	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1152	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1398	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1153	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1154	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1155	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1156	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1399	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1157		1400
1158	main_mainstack = PL_mainstack;	1401	main_mainstack = PL_mainstack;
		1402	main_top_env = PL_top_env;
		1403
		1404	while (main_top_env->je_prev)
		1405	main_top_env = main_top_env->je_prev;
1159		1406
1160	coroapi.ver = CORO_API_VERSION;	1407	coroapi.ver = CORO_API_VERSION;
1161	coroapi.transfer = api_transfer;	1408	coroapi.transfer = api_transfer;
1162		1409
1163	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1410	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1170	struct coro *coro;	1417	struct coro *coro;
1171	HV *hv;	1418	HV *hv;
1172	int i;	1419	int i;
1173		1420
1174	Newz (0, coro, 1, struct coro);	1421	Newz (0, coro, 1, struct coro);
1175	coro->args = newAV ();	1422	coro->args = newAV ();
1176	coro->save = CORO_SAVE_ALL;
1177	coro->flags = CF_NEW;	1423	coro->flags = CF_NEW;
1178		1424
		1425	if (coro_first) coro_first->prev = coro;
		1426	coro->next = coro_first;
		1427	coro_first = coro;
		1428
1179	hv = newHV ();	1429	coro->hv = hv = newHV ();
1180	sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;	1430	sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1181	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1431	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1182		1432
1183	for (i = 1; i < items; i++)	1433	for (i = 1; i < items; i++)
1184	av_push (coro->args, newSVsv (ST (i)));	1434	av_push (coro->args, newSVsv (ST (i)));
1185	}	1435	}
1186	OUTPUT:	1436	OUTPUT:
1187	RETVAL	1437	RETVAL
1188		1438
1189	int	1439	# these not obviously related functions are all rolled into the same xs
1190	save (SV *coro, int new_save = -1)	1440	# function to increase chances that they all will call transfer with the same
1191	CODE:	1441	# stack offset
1192	RETVAL = api_save (coro, new_save);
1193	OUTPUT:
1194	RETVAL
1195
1196	void	1442	void
1197	_set_stacklevel (...)	1443	_set_stacklevel (...)
1198	ALIAS:	1444	ALIAS:
1199	Coro::State::transfer = 1	1445	Coro::State::transfer = 1
1200	Coro::schedule = 2	1446	Coro::schedule = 2
…		…
1213		1459
1214	case 1:	1460	case 1:
1215	if (items != 2)	1461	if (items != 2)
1216	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1462	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1217		1463
1218	prepare_transfer (&ta, ST (0), ST (1));	1464	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1219	break;	1465	break;
1220		1466
1221	case 2:	1467	case 2:
1222	prepare_schedule (&ta);	1468	prepare_schedule (aTHX_ &ta);
1223	break;	1469	break;
1224		1470
1225	case 3:	1471	case 3:
1226	prepare_cede (&ta);	1472	prepare_cede (aTHX_ &ta);
1227	break;	1473	break;
1228		1474
1229	case 4:	1475	case 4:
1230	if (!prepare_cede_notself (&ta))	1476	if (!prepare_cede_notself (aTHX_ &ta))
1231	XSRETURN_EMPTY;	1477	XSRETURN_EMPTY;
1232		1478
1233	break;	1479	break;
1234	}	1480	}
1235		1481
…		…
1241	}	1487	}
1242		1488
1243	bool	1489	bool
1244	_destroy (SV *coro_sv)	1490	_destroy (SV *coro_sv)
1245	CODE:	1491	CODE:
1246	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1492	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1247	OUTPUT:	1493	OUTPUT:
1248	RETVAL	1494	RETVAL
1249		1495
1250	void	1496	void
1251	_exit (code)	1497	_exit (code)
…		…
1275	CODE:	1521	CODE:
1276	RETVAL = cctx_idle;	1522	RETVAL = cctx_idle;
1277	OUTPUT:	1523	OUTPUT:
1278	RETVAL	1524	RETVAL
1279		1525
		1526	void
		1527	list ()
		1528	PPCODE:
		1529	{
		1530	struct coro *coro;
		1531	for (coro = coro_first; coro; coro = coro->next)
		1532	if (coro->hv)
		1533	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1534	}
		1535
		1536	void
		1537	call (Coro::State coro, SV *coderef)
		1538	ALIAS:
		1539	eval = 1
		1540	CODE:
		1541	{
		1542	if (coro->mainstack)
		1543	{
		1544	struct coro temp;
		1545	Zero (&temp, 1, struct coro);
		1546
		1547	if (!(coro->flags & CF_RUNNING))
		1548	{
		1549	save_perl (aTHX_ &temp);
		1550	load_perl (aTHX_ coro);
		1551	}
		1552
		1553	{
		1554	dSP;
		1555	ENTER;
		1556	SAVETMPS;
		1557	PUSHMARK (SP);
		1558	PUTBACK;
		1559	if (ix)
		1560	eval_sv (coderef, 0);
		1561	else
		1562	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		1563	SPAGAIN;
		1564	FREETMPS;
		1565	LEAVE;
		1566	PUTBACK;
		1567	}
		1568
		1569	if (!(coro->flags & CF_RUNNING))
		1570	{
		1571	save_perl (aTHX_ coro);
		1572	load_perl (aTHX_ &temp);
		1573	}
		1574	}
		1575	}
		1576
		1577	SV *
		1578	is_ready (Coro::State coro)
		1579	PROTOTYPE: $
		1580	ALIAS:
		1581	is_ready = CF_READY
		1582	is_running = CF_RUNNING
		1583	is_new = CF_NEW
		1584	is_destroyed = CF_DESTROYED
		1585	CODE:
		1586	RETVAL = boolSV (coro->flags & ix);
		1587	OUTPUT:
		1588	RETVAL
		1589
		1590	void
		1591	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
		1592
		1593	SV *
		1594	has_stack (Coro::State coro)
		1595	PROTOTYPE: $
		1596	CODE:
		1597	RETVAL = boolSV (!!coro->cctx);
		1598	OUTPUT:
		1599	RETVAL
		1600
		1601	int
		1602	is_traced (Coro::State coro)
		1603	PROTOTYPE: $
		1604	CODE:
		1605	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1606	OUTPUT:
		1607	RETVAL
		1608
		1609	IV
		1610	rss (Coro::State coro)
		1611	PROTOTYPE: $
		1612	ALIAS:
		1613	usecount = 1
		1614	CODE:
		1615	switch (ix)
		1616	{
		1617	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1618	case 1: RETVAL = coro->usecount; break;
		1619	}
		1620	OUTPUT:
		1621	RETVAL
		1622
		1623
1280	MODULE = Coro::State PACKAGE = Coro	1624	MODULE = Coro::State PACKAGE = Coro
1281		1625
1282	BOOT:	1626	BOOT:
1283	{	1627	{
1284	int i;	1628	int i;
		1629
		1630	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1631	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1632	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1633
		1634	coro_current = get_sv ("Coro::current", FALSE);
		1635	SvREADONLY_on (coro_current);
1285		1636
1286	coro_stash = gv_stashpv ("Coro", TRUE);	1637	coro_stash = gv_stashpv ("Coro", TRUE);
1287		1638
1288	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1639	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1289	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1640	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1290	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1641	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1291	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1642	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1292	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1643	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1293	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1644	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1294		1645
1295	coro_current = get_sv ("Coro::current", FALSE);
1296	SvREADONLY_on (coro_current);
1297
1298	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1646	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1299	coro_ready[i] = newAV ();	1647	coro_ready[i] = newAV ();
1300		1648
1301	{	1649	{
1302	SV *sv = perl_get_sv("Coro::API", 1);	1650	SV *sv = perl_get_sv("Coro::API", 1);
1303		1651
1304	coroapi.schedule = api_schedule;	1652	coroapi.schedule = api_schedule;
1305	coroapi.save = api_save;
1306	coroapi.cede = api_cede;	1653	coroapi.cede = api_cede;
1307	coroapi.cede_notself = api_cede_notself;	1654	coroapi.cede_notself = api_cede_notself;
1308	coroapi.ready = api_ready;	1655	coroapi.ready = api_ready;
1309	coroapi.is_ready = api_is_ready;	1656	coroapi.is_ready = api_is_ready;
1310	coroapi.nready = &coro_nready;	1657	coroapi.nready = &coro_nready;
…		…
1351	CODE:	1698	CODE:
1352	RETVAL = boolSV (api_ready (self));	1699	RETVAL = boolSV (api_ready (self));
1353	OUTPUT:	1700	OUTPUT:
1354	RETVAL	1701	RETVAL
1355		1702
1356	SV *
1357	is_ready (SV *self)
1358	PROTOTYPE: $
1359	CODE:
1360	RETVAL = boolSV (api_is_ready (self));
1361	OUTPUT:
1362	RETVAL
1363
1364	int	1703	int
1365	nready (...)	1704	nready (...)
1366	PROTOTYPE:	1705	PROTOTYPE:
1367	CODE:	1706	CODE:
1368	RETVAL = coro_nready;	1707	RETVAL = coro_nready;
1369	OUTPUT:	1708	OUTPUT:
1370	RETVAL	1709	RETVAL
1371		1710
		1711	# for async_pool speedup
		1712	void
		1713	_pool_1 (SV *cb)
		1714	CODE:
		1715	{
		1716	struct coro *coro = SvSTATE (coro_current);
		1717	HV *hv = (HV *)SvRV (coro_current);
		1718	AV *defav = GvAV (PL_defgv);
		1719	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1720	AV *invoke_av;
		1721	int i, len;
		1722
		1723	if (!invoke)
		1724	croak ("\3terminate\2\n");
		1725
		1726	SvREFCNT_dec (coro->saved_deffh);
		1727	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1728
		1729	hv_store (hv, "desc", sizeof ("desc") - 1,
		1730	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1731
		1732	invoke_av = (AV *)SvRV (invoke);
		1733	len = av_len (invoke_av);
		1734
		1735	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1736
		1737	if (len > 0)
		1738	{
		1739	av_fill (defav, len - 1);
		1740	for (i = 0; i < len; ++i)
		1741	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1742	}
		1743
		1744	SvREFCNT_dec (invoke);
		1745	}
		1746
		1747	void
		1748	_pool_2 (SV *cb)
		1749	CODE:
		1750	{
		1751	struct coro *coro = SvSTATE (coro_current);
		1752
		1753	sv_setsv (cb, &PL_sv_undef);
		1754
		1755	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
		1756	coro->saved_deffh = 0;
		1757
		1758	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1759	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1760	croak ("\3terminate\2\n");
		1761
		1762	av_clear (GvAV (PL_defgv));
		1763	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1764	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1765
		1766	coro->prio = 0;
		1767
		1768	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1769	api_trace (coro_current, 0);
		1770
		1771	av_push (av_async_pool, newSVsv (coro_current));
		1772	}
		1773
		1774
1372	MODULE = Coro::State PACKAGE = Coro::AIO	1775	MODULE = Coro::State PACKAGE = Coro::AIO
1373		1776
1374	SV *	1777	SV *
1375	_get_state ()	1778	_get_state ()
1376	CODE:	1779	CODE:

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