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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.143 by root, Wed Feb 28 11:43:03 2007 UTC vs.
Revision 1.183 by root, Wed Oct 3 19:19:06 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
…		…
86	/* prefer perl internal functions over our own? */	88	/* prefer perl internal functions over our own? */
87	#ifndef CORO_PREFER_PERL_FUNCTIONS	89	#ifndef CORO_PREFER_PERL_FUNCTIONS
88	# define CORO_PREFER_PERL_FUNCTIONS 0	90	# define CORO_PREFER_PERL_FUNCTIONS 0
89	#endif	91	#endif
90		92
91	/* The next macro should declare a variable stacklevel that contains and approximation	93	/* 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	94	* portable way as possible. */
93	* and should be unique. */
94	#define dSTACKLEVEL int stacklevel	95	#define dSTACKLEVEL volatile char stacklevel
95	#define STACKLEVEL ((void *)&stacklevel)	96	#define STACKLEVEL ((void *)&stacklevel)
96		97
97	#define IN_DESTRUCT (PL_main_cv == Nullcv)	98	#define IN_DESTRUCT (PL_main_cv == Nullcv)
98		99
99	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
124	I32 laststype;	125	I32 laststype;
125	int laststatval;	126	int laststatval;
126	Stat_t statcache;	127	Stat_t statcache;
127	};	128	};
128		129
		130	static size_t coro_stacksize = CORO_STACKSIZE;
129	static struct CoroAPI coroapi;	131	static struct CoroAPI coroapi;
130	static AV *main_mainstack; /* used to differentiate between $main and others */	132	static AV *main_mainstack; /* used to differentiate between $main and others */
		133	static JMPENV *main_top_env;
131	static HV *coro_state_stash, *coro_stash;	134	static HV *coro_state_stash, *coro_stash;
132	static SV *coro_mortal; /* will be freed after next transfer */	135	static SV *coro_mortal; /* will be freed after next transfer */
133		136
		137	static GV *irsgv; /* $/ */
		138
		139	/* async_pool helper stuff */
		140	static SV *sv_pool_rss;
		141	static SV *sv_pool_size;
		142	static AV *av_async_pool;
		143
134	static struct coro_cctx *cctx_first;	144	static struct coro_cctx *cctx_first;
135	static int cctx_count, cctx_idle;	145	static int cctx_count, cctx_idle;
		146
		147	enum {
		148	CC_MAPPED = 0x01,
		149	CC_NOREUSE = 0x02, /* throw this away after tracing */
		150	CC_TRACE = 0x04,
		151	CC_TRACE_SUB = 0x08, /* trace sub calls */
		152	CC_TRACE_LINE = 0x10, /* trace each statement */
		153	CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE,
		154	};
136		155
137	/* this is a structure representing a c-level coroutine */	156	/* this is a structure representing a c-level coroutine */
138	typedef struct coro_cctx {	157	typedef struct coro_cctx {
139	struct coro_cctx *next;	158	struct coro_cctx *next;
140		159
141	/* the stack */	160	/* the stack */
142	void *sptr;	161	void *sptr;
143	ssize_t ssize; /* positive == mmap, otherwise malloc */	162	size_t ssize;
144		163
145	/* cpu state */	164	/* cpu state */
146	void *idle_sp; /* sp of top-level transfer/schedule/cede call */	165	void *idle_sp; /* sp of top-level transfer/schedule/cede call */
147	JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */	166	JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */
148	JMPENV *top_env;	167	JMPENV *top_env;
149	coro_context cctx;	168	coro_context cctx;
150		169
151	int inuse;
152
153	#if CORO_USE_VALGRIND	170	#if CORO_USE_VALGRIND
154	int valgrind_id;	171	int valgrind_id;
155	#endif	172	#endif
		173	unsigned char flags;
156	} coro_cctx;	174	} coro_cctx;
157		175
158	enum {	176	enum {
159	CF_RUNNING = 0x0001, /* coroutine is running */	177	CF_RUNNING = 0x0001, /* coroutine is running */
160	CF_READY = 0x0002, /* coroutine is ready */	178	CF_READY = 0x0002, /* coroutine is ready */
…		…
168	coro_cctx *cctx;	186	coro_cctx *cctx;
169		187
170	/* data associated with this coroutine (initial args) */	188	/* data associated with this coroutine (initial args) */
171	AV *args;	189	AV *args;
172	int refcnt;	190	int refcnt;
173	int save; /* CORO_SAVE flags */
174	int flags; /* CF_ flags */	191	int flags; /* CF_ flags */
175		192
176	/* optionally saved, might be zero */	193	/* optionally saved, might be zero */
177	AV *defav; /* @_ */	194	AV *defav; /* @_ */
178	SV *defsv; /* $_ */	195	SV *defsv; /* $_ */
179	SV *errsv; /* $@ */	196	SV *errsv; /* $@ */
		197	GV *deffh; /* default filehandle */
180	SV *irssv; /* $/ */	198	SV *irssv; /* $/ */
181	SV *irssv_sv; /* real $/ cache */	199	SV *irssv_sv; /* real $/ cache */
182		200
183	#define VAR(name,type) type name;	201	#define VAR(name,type) type name;
184	# include "state.h"	202	# include "state.h"
185	#undef VAR	203	#undef VAR
186		204
		205	/* statistics */
		206	int usecount; /* number of transfers to this coro */
		207
187	/* coro process data */	208	/* coro process data */
188	int prio;	209	int prio;
		210	//SV *throw;
		211
		212	/* async_pool */
		213	GV *asp_deffh;
		214
		215	/* linked list */
		216	struct coro *next, *prev;
		217	HV *hv; /* the perl hash associated with this coro, if any */
189	};	218	};
190		219
191	typedef struct coro *Coro__State;	220	typedef struct coro *Coro__State;
192	typedef struct coro *Coro__State_or_hashref;	221	typedef struct coro *Coro__State_or_hashref;
193		222
…		…
202		231
203	/* for Coro.pm */	232	/* for Coro.pm */
204	static SV *coro_current;	233	static SV *coro_current;
205	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	234	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
206	static int coro_nready;	235	static int coro_nready;
		236	static struct coro *coro_first;
207		237
208	/** lowlevel stuff **********************************************************/	238	/** lowlevel stuff **********************************************************/
209		239
210	static AV *	240	static AV *
211	coro_clone_padlist (CV *cv)	241	coro_clone_padlist (pTHX_ CV *cv)
212	{	242	{
213	AV *padlist = CvPADLIST (cv);	243	AV *padlist = CvPADLIST (cv);
214	AV *newpadlist, *newpad;	244	AV *newpadlist, *newpad;
215		245
216	newpadlist = newAV ();	246	newpadlist = newAV ();
…		…
228		258
229	return newpadlist;	259	return newpadlist;
230	}	260	}
231		261
232	static void	262	static void
233	free_padlist (AV *padlist)	263	free_padlist (pTHX_ AV *padlist)
234	{	264	{
235	/* may be during global destruction */	265	/* may be during global destruction */
236	if (SvREFCNT (padlist))	266	if (SvREFCNT (padlist))
237	{	267	{
238	I32 i = AvFILLp (padlist);	268	I32 i = AvFILLp (padlist);
…		…
259	AV *padlist;	289	AV *padlist;
260	AV *av = (AV *)mg->mg_obj;	290	AV *av = (AV *)mg->mg_obj;
261		291
262	/* casting is fun. */	292	/* casting is fun. */
263	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	293	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
264	free_padlist (padlist);	294	free_padlist (aTHX_ padlist);
265		295
266	SvREFCNT_dec (av);	296	SvREFCNT_dec (av);
267		297
268	return 0;	298	return 0;
269	}	299	}
…		…
277	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	307	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
278	? SvMAGIC (cv) \	308	? SvMAGIC (cv) \
279	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	309	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
280	: 0	310	: 0
281		311
		312	static struct coro *
		313	SvSTATE_ (pTHX_ SV *coro)
		314	{
		315	HV *stash;
		316	MAGIC *mg;
		317
		318	if (SvROK (coro))
		319	coro = SvRV (coro);
		320
		321	if (SvTYPE (coro) != SVt_PVHV)
		322	croak ("Coro::State object required");
		323
		324	stash = SvSTASH (coro);
		325	if (stash != coro_stash && stash != coro_state_stash)
		326	{
		327	/* very slow, but rare, check */
		328	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		329	croak ("Coro::State object required");
		330	}
		331
		332	mg = CORO_MAGIC (coro);
		333	return (struct coro *)mg->mg_ptr;
		334	}
		335
		336	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		337
282	/* the next two functions merely cache the padlists */	338	/* the next two functions merely cache the padlists */
283	static void	339	static void
284	get_padlist (CV *cv)	340	get_padlist (pTHX_ CV *cv)
285	{	341	{
286	MAGIC *mg = CORO_MAGIC (cv);	342	MAGIC *mg = CORO_MAGIC (cv);
287	AV *av;	343	AV *av;
288		344
289	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	345	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
…		…
295	CV *cp = Perl_cv_clone (cv);	351	CV *cp = Perl_cv_clone (cv);
296	CvPADLIST (cv) = CvPADLIST (cp);	352	CvPADLIST (cv) = CvPADLIST (cp);
297	CvPADLIST (cp) = 0;	353	CvPADLIST (cp) = 0;
298	SvREFCNT_dec (cp);	354	SvREFCNT_dec (cp);
299	#else	355	#else
300	CvPADLIST (cv) = coro_clone_padlist (cv);	356	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
301	#endif	357	#endif
302	}	358	}
303	}	359	}
304		360
305	static void	361	static void
306	put_padlist (CV *cv)	362	put_padlist (pTHX_ CV *cv)
307	{	363	{
308	MAGIC *mg = CORO_MAGIC (cv);	364	MAGIC *mg = CORO_MAGIC (cv);
309	AV *av;	365	AV *av;
310		366
311	if (!mg)	367	if (!mg)
…		…
324	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	380	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
325	}	381	}
326		382
327	/** load & save, init *******************************************************/	383	/** load & save, init *******************************************************/
328		384
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	385	static void
335	load_perl (Coro__State c)	386	load_perl (pTHX_ Coro__State c)
336	{	387	{
337	#define VAR(name,type) PL_ ## name = c->name;	388	#define VAR(name,type) PL_ ## name = c->name;
338	# include "state.h"	389	# include "state.h"
339	#undef VAR	390	#undef VAR
340		391
341	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	392	GvSV (PL_defgv) = c->defsv;
342	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	393	GvAV (PL_defgv) = c->defav;
343	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	394	GvSV (PL_errgv) = c->errsv;
344	if (c->irssv)	395	PL_defoutgv = c->deffh;
345	{	396	PL_rs = c->irssv;
346	if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))	397	GvSV (irsgv) = c->irssv_sv;
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		398
356	{	399	{
357	dSP;	400	dSP;
358	CV *cv;	401	CV *cv;
359		402
360	/* now do the ugly restore mess */	403	/* now do the ugly restore mess */
361	while ((cv = (CV *)POPs))	404	while ((cv = (CV *)POPs))
362	{	405	{
363	put_padlist (cv); /* mark this padlist as available */	406	put_padlist (aTHX_ cv); /* mark this padlist as available */
364	CvDEPTH (cv) = PTR2IV (POPs);	407	CvDEPTH (cv) = PTR2IV (POPs);
365	CvPADLIST (cv) = (AV *)POPs;	408	CvPADLIST (cv) = (AV *)POPs;
366	}	409	}
367		410
368	PUTBACK;	411	PUTBACK;
369	}	412	}
370	assert (!PL_comppad || AvARRAY (PL_comppad));//D
371	}	413	}
372		414
373	static void	415	static void
374	save_perl (Coro__State c)	416	save_perl (pTHX_ Coro__State c)
375	{	417	{
376	assert (!PL_comppad || AvARRAY (PL_comppad));//D
377	{	418	{
378	dSP;	419	dSP;
379	I32 cxix = cxstack_ix;	420	I32 cxix = cxstack_ix;
380	PERL_CONTEXT *ccstk = cxstack;	421	PERL_CONTEXT *ccstk = cxstack;
381	PERL_SI *top_si = PL_curstackinfo;	422	PERL_SI *top_si = PL_curstackinfo;
…		…
383	/*	424	/*
384	* the worst thing you can imagine happens first - we have to save	425	* the worst thing you can imagine happens first - we have to save
385	* (and reinitialize) all cv's in the whole callchain :(	426	* (and reinitialize) all cv's in the whole callchain :(
386	*/	427	*/
387		428
388	EXTEND (SP, 3 + 1);
389	PUSHs (Nullsv);	429	XPUSHs (Nullsv);
390	/* this loop was inspired by pp_caller */	430	/* this loop was inspired by pp_caller */
391	for (;;)	431	for (;;)
392	{	432	{
393	while (cxix >= 0)	433	while (cxix >= 0)
394	{	434	{
395	PERL_CONTEXT *cx = &ccstk[cxix--];	435	PERL_CONTEXT *cx = &ccstk[cxix--];
396		436
397	if (CxTYPE (cx) == CXt_SUB)	437	if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)
398	{	438	{
399	CV *cv = cx->blk_sub.cv;	439	CV *cv = cx->blk_sub.cv;
400		440
401	if (CvDEPTH (cv))	441	if (CvDEPTH (cv))
402	{	442	{
…		…
404	PUSHs ((SV *)CvPADLIST (cv));	444	PUSHs ((SV *)CvPADLIST (cv));
405	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	445	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
406	PUSHs ((SV *)cv);	446	PUSHs ((SV *)cv);
407		447
408	CvDEPTH (cv) = 0;	448	CvDEPTH (cv) = 0;
409	get_padlist (cv);	449	get_padlist (aTHX_ cv);
410	}	450	}
411	}	451	}
412	}	452	}
413		453
414	if (top_si->si_type == PERLSI_MAIN)	454	if (top_si->si_type == PERLSI_MAIN)
415	break;	455	break;
416		456
417	top_si = top_si->si_prev;	457	top_si = top_si->si_prev;
418	ccstk = top_si->si_cxstack;	458	ccstk = top_si->si_cxstack;
419	cxix = top_si->si_cxix;	459	cxix = top_si->si_cxix;
420	}	460	}
421		461
422	PUTBACK;	462	PUTBACK;
423	}	463	}
424		464
425	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	465	c->defav = GvAV (PL_defgv);
426	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	466	c->defsv = DEFSV;
427	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	467	c->errsv = ERRSV;
428	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	468	c->deffh = PL_defoutgv;
		469	c->irssv = PL_rs;
		470	c->irssv_sv = GvSV (irsgv);
429		471
430	#define VAR(name,type)c->name = PL_ ## name;	472	#define VAR(name,type)c->name = PL_ ## name;
431	# include "state.h"	473	# include "state.h"
432	#undef VAR	474	#undef VAR
433	}	475	}
…		…
440	*/	482	*/
441	#if CORO_PREFER_PERL_FUNCTIONS	483	#if CORO_PREFER_PERL_FUNCTIONS
442	# define coro_init_stacks init_stacks	484	# define coro_init_stacks init_stacks
443	#else	485	#else
444	static void	486	static void
445	coro_init_stacks ()	487	coro_init_stacks (pTHX)
446	{	488	{
447	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	489	PL_curstackinfo = new_stackinfo(64, 6);
448	PL_curstackinfo->si_type = PERLSI_MAIN;	490	PL_curstackinfo->si_type = PERLSI_MAIN;
449	PL_curstack = PL_curstackinfo->si_stack;	491	PL_curstack = PL_curstackinfo->si_stack;
450	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	492	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
451		493
452	PL_stack_base = AvARRAY(PL_curstack);	494	PL_stack_base = AvARRAY(PL_curstack);
453	PL_stack_sp = PL_stack_base;	495	PL_stack_sp = PL_stack_base;
454	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	496	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
455		497
456	New(50,PL_tmps_stack,128,SV*);	498	New(50,PL_tmps_stack,64,SV*);
457	PL_tmps_floor = -1;	499	PL_tmps_floor = -1;
458	PL_tmps_ix = -1;	500	PL_tmps_ix = -1;
459	PL_tmps_max = 128;	501	PL_tmps_max = 64;
460		502
461	New(54,PL_markstack,32,I32);	503	New(54,PL_markstack,16,I32);
462	PL_markstack_ptr = PL_markstack;	504	PL_markstack_ptr = PL_markstack;
463	PL_markstack_max = PL_markstack + 32;	505	PL_markstack_max = PL_markstack + 16;
464		506
465	#ifdef SET_MARK_OFFSET	507	#ifdef SET_MARK_OFFSET
466	SET_MARK_OFFSET;	508	SET_MARK_OFFSET;
467	#endif	509	#endif
468		510
469	New(54,PL_scopestack,32,I32);	511	New(54,PL_scopestack,16,I32);
470	PL_scopestack_ix = 0;	512	PL_scopestack_ix = 0;
471	PL_scopestack_max = 32;	513	PL_scopestack_max = 16;
472		514
473	New(54,PL_savestack,64,ANY);	515	New(54,PL_savestack,64,ANY);
474	PL_savestack_ix = 0;	516	PL_savestack_ix = 0;
475	PL_savestack_max = 64;	517	PL_savestack_max = 64;
476		518
477	#if !PERL_VERSION_ATLEAST (5,9,0)	519	#if !PERL_VERSION_ATLEAST (5,9,0)
478	New(54,PL_retstack,16,OP*);	520	New(54,PL_retstack,4,OP*);
479	PL_retstack_ix = 0;	521	PL_retstack_ix = 0;
480	PL_retstack_max = 16;	522	PL_retstack_max = 4;
481	#endif	523	#endif
482	}	524	}
483	#endif	525	#endif
484		526
485	/*	527	/*
486	* destroy the stacks, the callchain etc...	528	* destroy the stacks, the callchain etc...
487	*/	529	*/
488	static void	530	static void
489	coro_destroy_stacks ()	531	coro_destroy_stacks (pTHX)
490	{	532	{
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)	533	while (PL_curstackinfo->si_next)
509	PL_curstackinfo = PL_curstackinfo->si_next;	534	PL_curstackinfo = PL_curstackinfo->si_next;
510		535
511	while (PL_curstackinfo)	536	while (PL_curstackinfo)
512	{	537	{
…		…
527	#if !PERL_VERSION_ATLEAST (5,9,0)	552	#if !PERL_VERSION_ATLEAST (5,9,0)
528	Safefree (PL_retstack);	553	Safefree (PL_retstack);
529	#endif	554	#endif
530	}	555	}
531		556
		557	static size_t
		558	coro_rss (pTHX_ struct coro *coro)
		559	{
		560	size_t rss = sizeof (*coro);
		561
		562	if (coro->mainstack)
		563	{
		564	if (coro->flags & CF_RUNNING)
		565	{
		566	#define VAR(name,type)coro->name = PL_ ## name;
		567	# include "state.h"
		568	#undef VAR
		569	}
		570
		571	rss += sizeof (coro->curstackinfo);
		572	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		573	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		574	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		575	rss += coro->tmps_max * sizeof (SV *);
		576	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		577	rss += coro->scopestack_max * sizeof (I32);
		578	rss += coro->savestack_max * sizeof (ANY);
		579
		580	#if !PERL_VERSION_ATLEAST (5,9,0)
		581	rss += coro->retstack_max * sizeof (OP *);
		582	#endif
		583	}
		584
		585	return rss;
		586	}
		587
532	/** coroutine stack handling ************************************************/	588	/** coroutine stack handling ************************************************/
533		589
534	static void	590	static void
535	setup_coro (struct coro *coro)	591	coro_setup (pTHX_ struct coro *coro)
536	{	592	{
537	/*	593	/*
538	* emulate part of the perl startup here.	594	* emulate part of the perl startup here.
539	*/	595	*/
540
541	coro_init_stacks ();	596	coro_init_stacks (aTHX);
542		597
		598	PL_runops = RUNOPS_DEFAULT;
543	PL_curcop = &PL_compiling;	599	PL_curcop = &PL_compiling;
544	PL_in_eval = EVAL_NULL;	600	PL_in_eval = EVAL_NULL;
545	PL_comppad = 0;	601	PL_comppad = 0;
546	PL_curpm = 0;	602	PL_curpm = 0;
547	PL_localizing = 0;	603	PL_localizing = 0;
548	PL_dirty = 0;	604	PL_dirty = 0;
549	PL_restartop = 0;	605	PL_restartop = 0;
		606
		607	GvSV (PL_defgv) = NEWSV (0, 0);
		608	GvAV (PL_defgv) = coro->args; coro->args = 0;
		609	GvSV (PL_errgv) = NEWSV (0, 0);
		610	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		611	PL_rs = newSVsv (GvSV (irsgv));
		612
		613	{
		614	IO *io = newIO ();
		615	PL_defoutgv = newGVgen ("Coro");
		616	GvIOp(PL_defoutgv) = io;
		617	IoTYPE (io) = IoTYPE_WRONLY;
		618	IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
		619	IoFLAGS (io) |= IOf_FLUSH;
		620	}
550		621
551	{	622	{
552	dSP;	623	dSP;
553	LOGOP myop;	624	LOGOP myop;
554		625
555	SvREFCNT_dec (GvAV (PL_defgv));
556	GvAV (PL_defgv) = coro->args; coro->args = 0;
557
558	Zero (&myop, 1, LOGOP);	626	Zero (&myop, 1, LOGOP);
559	myop.op_next = Nullop;	627	myop.op_next = Nullop;
560	myop.op_flags = OPf_WANT_VOID;	628	myop.op_flags = OPf_WANT_VOID;
561		629
562	PUSHMARK (SP);	630	PUSHMARK (SP);
563	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	631	XPUSHs (av_shift (GvAV (PL_defgv)));
564	PUTBACK;	632	PUTBACK;
565	PL_op = (OP *)&myop;	633	PL_op = (OP *)&myop;
566	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	634	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
567	SPAGAIN;	635	SPAGAIN;
568	}	636	}
569		637
570	ENTER; /* necessary e.g. for dounwind */	638	ENTER; /* necessary e.g. for dounwind */
571	}	639	}
572		640
573	static void	641	static void
		642	coro_destroy (pTHX_ struct coro *coro)
		643	{
		644	if (!IN_DESTRUCT)
		645	{
		646	/* restore all saved variables and stuff */
		647	LEAVE_SCOPE (0);
		648	assert (PL_tmps_floor == -1);
		649
		650	/* free all temporaries */
		651	FREETMPS;
		652	assert (PL_tmps_ix == -1);
		653
		654	/* unwind all extra stacks */
		655	POPSTACK_TO (PL_mainstack);
		656
		657	/* unwind main stack */
		658	dounwind (-1);
		659	}
		660
		661	SvREFCNT_dec (GvSV (PL_defgv));
		662	SvREFCNT_dec (GvAV (PL_defgv));
		663	SvREFCNT_dec (GvSV (PL_errgv));
		664	SvREFCNT_dec (PL_defoutgv);
		665	SvREFCNT_dec (PL_rs);
		666	SvREFCNT_dec (GvSV (irsgv));
		667
		668	SvREFCNT_dec (coro->asp_deffh);
		669	//SvREFCNT_dec (coro->throw);
		670
		671	coro_destroy_stacks (aTHX);
		672	}
		673
		674	static void
574	free_coro_mortal ()	675	free_coro_mortal (pTHX)
575	{	676	{
576	if (coro_mortal)	677	if (coro_mortal)
577	{	678	{
578	SvREFCNT_dec (coro_mortal);	679	SvREFCNT_dec (coro_mortal);
579	coro_mortal = 0;	680	coro_mortal = 0;
580	}	681	}
581	}	682	}
582		683
		684	static int
		685	runops_trace (pTHX)
		686	{
		687	COP *oldcop = 0;
		688	int oldcxix = -2;
		689	struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
		690	coro_cctx *cctx = coro->cctx;
		691
		692	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		693	{
		694	PERL_ASYNC_CHECK ();
		695
		696	if (cctx->flags & CC_TRACE_ALL)
		697	{
		698	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		699	{
		700	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		701	SV **bot, **top;
		702	AV *av = newAV (); /* return values */
		703	SV **cb;
		704	dSP;
		705
		706	GV *gv = CvGV (cx->blk_sub.cv);
		707	SV *fullname = sv_2mortal (newSV (0));
		708	if (isGV (gv))
		709	gv_efullname3 (fullname, gv, 0);
		710
		711	bot = PL_stack_base + cx->blk_oldsp + 1;
		712	top = cx->blk_gimme == G_ARRAY ? SP + 1
		713	: cx->blk_gimme == G_SCALAR ? bot + 1
		714	: bot;
		715
		716	while (bot < top)
		717	av_push (av, SvREFCNT_inc (*bot++));
		718
		719	PL_runops = RUNOPS_DEFAULT;
		720	ENTER;
		721	SAVETMPS;
		722	EXTEND (SP, 3);
		723	PUSHMARK (SP);
		724	PUSHs (&PL_sv_no);
		725	PUSHs (fullname);
		726	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		727	PUTBACK;
		728	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		729	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		730	SPAGAIN;
		731	FREETMPS;
		732	LEAVE;
		733	PL_runops = runops_trace;
		734	}
		735
		736	if (oldcop != PL_curcop)
		737	{
		738	oldcop = PL_curcop;
		739
		740	if (PL_curcop != &PL_compiling)
		741	{
		742	SV **cb;
		743
		744	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		745	{
		746	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		747
		748	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		749	{
		750	runops_proc_t old_runops = PL_runops;
		751	dSP;
		752	GV *gv = CvGV (cx->blk_sub.cv);
		753	SV *fullname = sv_2mortal (newSV (0));
		754
		755	if (isGV (gv))
		756	gv_efullname3 (fullname, gv, 0);
		757
		758	PL_runops = RUNOPS_DEFAULT;
		759	ENTER;
		760	SAVETMPS;
		761	EXTEND (SP, 3);
		762	PUSHMARK (SP);
		763	PUSHs (&PL_sv_yes);
		764	PUSHs (fullname);
		765	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		766	PUTBACK;
		767	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		768	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		769	SPAGAIN;
		770	FREETMPS;
		771	LEAVE;
		772	PL_runops = runops_trace;
		773	}
		774
		775	oldcxix = cxstack_ix;
		776	}
		777
		778	if (cctx->flags & CC_TRACE_LINE)
		779	{
		780	dSP;
		781
		782	PL_runops = RUNOPS_DEFAULT;
		783	ENTER;
		784	SAVETMPS;
		785	EXTEND (SP, 3);
		786	PL_runops = RUNOPS_DEFAULT;
		787	PUSHMARK (SP);
		788	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		789	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		790	PUTBACK;
		791	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		792	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		793	SPAGAIN;
		794	FREETMPS;
		795	LEAVE;
		796	PL_runops = runops_trace;
		797	}
		798	}
		799	}
		800	}
		801	}
		802
		803	TAINT_NOT;
		804	return 0;
		805	}
		806
583	/* inject a fake call to Coro::State::_cctx_init into the execution */	807	/* inject a fake call to Coro::State::_cctx_init into the execution */
		808	/* _cctx_init should be careful, as it could be called at almost any time */
		809	/* during execution of a perl program */
584	static void NOINLINE	810	static void NOINLINE
585	prepare_cctx (coro_cctx *cctx)	811	prepare_cctx (pTHX_ coro_cctx *cctx)
586	{	812	{
587	dSP;	813	dSP;
588	LOGOP myop;	814	LOGOP myop;
		815
		816	PL_top_env = &PL_start_env;
		817
		818	if (cctx->flags & CC_TRACE)
		819	PL_runops = runops_trace;
589		820
590	Zero (&myop, 1, LOGOP);	821	Zero (&myop, 1, LOGOP);
591	myop.op_next = PL_op;	822	myop.op_next = PL_op;
592	myop.op_flags = OPf_WANT_VOID | OPf_STACKED;	823	myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
593		824
…		…
599	PL_op = (OP *)&myop;	830	PL_op = (OP *)&myop;
600	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	831	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
601	SPAGAIN;	832	SPAGAIN;
602	}	833	}
603		834
		835	/*
		836	* this is a _very_ stripped down perl interpreter ;)
		837	*/
604	static void	838	static void
605	coro_run (void *arg)	839	coro_run (void *arg)
606	{	840	{
		841	dTHX;
		842
607	/* coro_run is the alternative tail of transfer(), so unlock here. */	843	/* coro_run is the alternative tail of transfer(), so unlock here. */
608	UNLOCK;	844	UNLOCK;
609		845
610	/*	846	/* we now skip the entersub that lead to transfer() */
611	* this is a _very_ stripped down perl interpreter ;)	847	PL_op = PL_op->op_next;
612	*/
613	PL_top_env = &PL_start_env;
614		848
615	/* inject call to cctx_init */	849	/* inject a fake subroutine call to cctx_init */
616	prepare_cctx ((coro_cctx *)arg);	850	prepare_cctx (aTHX_ (coro_cctx *)arg);
617		851
618	/* somebody will hit me for both perl_run and PL_restartop */	852	/* somebody or something will hit me for both perl_run and PL_restartop */
619	PL_restartop = PL_op;	853	PL_restartop = PL_op;
620	perl_run (PL_curinterp);	854	perl_run (PL_curinterp);
621		855
622	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	856	/*
623	abort ();	857	* If perl-run returns we assume exit() was being called or the coro
		858	* fell off the end, which seems to be the only valid (non-bug)
		859	* reason for perl_run to return. We try to exit by jumping to the
		860	* bootstrap-time "top" top_env, as we cannot restore the "main"
		861	* coroutine as Coro has no such concept
		862	*/
		863	PL_top_env = main_top_env;
		864	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
624	}	865	}
625		866
626	static coro_cctx *	867	static coro_cctx *
627	cctx_new ()	868	cctx_new ()
628	{	869	{
629	coro_cctx *cctx;	870	coro_cctx *cctx;
		871	void *stack_start;
		872	size_t stack_size;
630		873
631	++cctx_count;	874	++cctx_count;
632		875
633	Newz (0, cctx, 1, coro_cctx);	876	Newz (0, cctx, 1, coro_cctx);
634		877
635	#if HAVE_MMAP	878	#if HAVE_MMAP
636		879
637	cctx->ssize = ((CORO_STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	880	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
638	/* mmap supposedly does allocate-on-write for us */	881	/* mmap supposedly does allocate-on-write for us */
639	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);	882	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
640		883
641	if (cctx->sptr != (void *)-1)	884	if (cctx->sptr != (void *)-1)
642	{	885	{
643	# if CORO_STACKGUARD	886	# if CORO_STACKGUARD
644	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	887	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
645	# endif	888	# endif
646	REGISTER_STACK (
647	cctx,
648	CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr,	889	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
649	cctx->ssize + (char *)cctx->sptr	890	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
650	);	891	cctx->flags |= CC_MAPPED;
651
652	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
653	}	892	}
654	else	893	else
655	#endif	894	#endif
656	{	895	{
657	cctx->ssize = -CORO_STACKSIZE * (long)sizeof (long);	896	cctx->ssize = coro_stacksize * (long)sizeof (long);
658	New (0, cctx->sptr, CORO_STACKSIZE, long);	897	New (0, cctx->sptr, coro_stacksize, long);
659		898
660	if (!cctx->sptr)	899	if (!cctx->sptr)
661	{	900	{
662	perror ("FATAL: unable to allocate stack for coroutine");	901	perror ("FATAL: unable to allocate stack for coroutine");
663	_exit (EXIT_FAILURE);	902	_exit (EXIT_FAILURE);
664	}	903	}
665		904
666	REGISTER_STACK (	905	stack_start = cctx->sptr;
667	cctx,	906	stack_size = cctx->ssize;
668	(char *)cctx->sptr,	907	}
669	(char *)cctx->sptr - cctx->ssize
670	);
671		908
		909	REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);
672	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, -cctx->ssize);	910	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
673	}
674		911
675	return cctx;	912	return cctx;
676	}	913	}
677		914
678	static void	915	static void
…		…
686	#if CORO_USE_VALGRIND	923	#if CORO_USE_VALGRIND
687	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	924	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
688	#endif	925	#endif
689		926
690	#if HAVE_MMAP	927	#if HAVE_MMAP
691	if (cctx->ssize > 0)	928	if (cctx->flags & CC_MAPPED)
692	munmap (cctx->sptr, cctx->ssize);	929	munmap (cctx->sptr, cctx->ssize);
693	else	930	else
694	#endif	931	#endif
695	Safefree (cctx->sptr);	932	Safefree (cctx->sptr);
696		933
697	Safefree (cctx);	934	Safefree (cctx);
698	}	935	}
699		936
700	static coro_cctx *	937	static coro_cctx *
701	cctx_get ()	938	cctx_get (pTHX)
702	{	939	{
703	coro_cctx *cctx;
704
705	if (cctx_first)	940	while (cctx_first)
706	{	941	{
707	cctx = cctx_first;	942	coro_cctx *cctx = cctx_first;
708	cctx_first = cctx->next;	943	cctx_first = cctx->next;
709	--cctx_idle;	944	--cctx_idle;
710	}	945
711	else	946	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
712	{	947	return cctx;
713	cctx = cctx_new ();	948
714	PL_op = PL_op->op_next;	949	cctx_destroy (cctx);
715	}	950	}
716		951
717	return cctx;	952	return cctx_new ();
718	}	953	}
719		954
720	static void	955	static void
721	cctx_put (coro_cctx *cctx)	956	cctx_put (coro_cctx *cctx)
722	{	957	{
…		…
725	{	960	{
726	coro_cctx *first = cctx_first;	961	coro_cctx *first = cctx_first;
727	cctx_first = first->next;	962	cctx_first = first->next;
728	--cctx_idle;	963	--cctx_idle;
729		964
730	assert (!first->inuse);
731	cctx_destroy (first);	965	cctx_destroy (first);
732	}	966	}
733		967
734	++cctx_idle;	968	++cctx_idle;
735	cctx->next = cctx_first;	969	cctx->next = cctx_first;
736	cctx_first = cctx;	970	cctx_first = cctx;
737	}	971	}
738		972
739	/** coroutine switching *****************************************************/	973	/** coroutine switching *****************************************************/
740		974
741	/* never call directly, always through the coro_state_transfer global variable */
742	static void NOINLINE	975	static void NOINLINE
		976	transfer_check (pTHX_ struct coro *prev, struct coro *next)
		977	{
		978	if (prev != next)
		979	{
		980	if (!(prev->flags & (CF_RUNNING | CF_NEW)))
		981	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		982
		983	if (next->flags & CF_RUNNING)
		984	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		985
		986	if (next->flags & CF_DESTROYED)
		987	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		988
		989	if (PL_lex_state != LEX_NOTPARSING)
		990	croak ("Coro::State::transfer called while parsing, but this is not supported");
		991	}
		992	}
		993
		994	/* always use the TRANSFER macro */
		995	static void NOINLINE
743	transfer (struct coro *prev, struct coro *next)	996	transfer (pTHX_ struct coro *prev, struct coro *next)
744	{	997	{
745	dSTACKLEVEL;	998	dSTACKLEVEL;
746		999
747	/* sometimes transfer is only called to set idle_sp */	1000	/* sometimes transfer is only called to set idle_sp */
748	if (!next)	1001	if (!next)
…		…
756		1009
757	if (prev->flags & CF_NEW)	1010	if (prev->flags & CF_NEW)
758	{	1011	{
759	/* create a new empty context */	1012	/* create a new empty context */
760	Newz (0, prev->cctx, 1, coro_cctx);	1013	Newz (0, prev->cctx, 1, coro_cctx);
761	prev->cctx->inuse = 1;
762	prev->flags &= ~CF_NEW;	1014	prev->flags &= ~CF_NEW;
763	prev->flags |= CF_RUNNING;	1015	prev->flags |= CF_RUNNING;
764	}	1016	}
765
766	/*TODO: must not croak here */
767	if (!prev->flags & CF_RUNNING)
768	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
769
770	if (next->flags & CF_RUNNING)
771	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
772
773	if (next->flags & CF_DESTROYED)
774	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
775		1017
776	prev->flags &= ~CF_RUNNING;	1018	prev->flags &= ~CF_RUNNING;
777	next->flags |= CF_RUNNING;	1019	next->flags |= CF_RUNNING;
778		1020
779	LOCK;	1021	LOCK;
…		…
781	if (next->flags & CF_NEW)	1023	if (next->flags & CF_NEW)
782	{	1024	{
783	/* need to start coroutine */	1025	/* need to start coroutine */
784	next->flags &= ~CF_NEW;	1026	next->flags &= ~CF_NEW;
785	/* first get rid of the old state */	1027	/* first get rid of the old state */
786	save_perl (prev);	1028	save_perl (aTHX_ prev);
787	/* setup coroutine call */	1029	/* setup coroutine call */
788	setup_coro (next);	1030	coro_setup (aTHX_ next);
789	/* need a new stack */
790	assert (!next->cctx);
791	}	1031	}
792	else	1032	else
793	{	1033	{
794	/* coroutine already started */	1034	/* coroutine already started */
795	save_perl (prev);	1035	save_perl (aTHX_ prev);
796	load_perl (next);	1036	load_perl (aTHX_ next);
797	}	1037	}
798		1038
799	prev__cctx = prev->cctx;	1039	prev__cctx = prev->cctx;
800		1040
801	/* possibly "free" the cctx */	1041	/* possibly "free" the cctx */
802	if (prev__cctx->idle_sp == STACKLEVEL)	1042	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
803	{	1043	{
804	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1044	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
805	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1045	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
806		1046
807	prev->cctx = 0;	1047	prev->cctx = 0;
808		1048
809	cctx_put (prev__cctx);	1049	cctx_put (prev__cctx);
810	prev__cctx->inuse = 0;
811	}	1050	}
812		1051
		1052	++next->usecount;
		1053
813	if (!next->cctx)	1054	if (!next->cctx)
814	{
815	next->cctx = cctx_get ();	1055	next->cctx = cctx_get (aTHX);
816	assert (!next->cctx->inuse);
817	next->cctx->inuse = 1;
818	}
819		1056
820	if (prev__cctx != next->cctx)	1057	if (prev__cctx != next->cctx)
821	{	1058	{
822	prev__cctx->top_env = PL_top_env;	1059	prev__cctx->top_env = PL_top_env;
823	PL_top_env = next->cctx->top_env;	1060	PL_top_env = next->cctx->top_env;
824	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1061	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
825	}	1062	}
826		1063
827	free_coro_mortal ();	1064	free_coro_mortal (aTHX);
828	UNLOCK;	1065	UNLOCK;
829	}	1066	}
830	}	1067	}
831		1068
832	struct transfer_args	1069	struct transfer_args
833	{	1070	{
834	struct coro *prev, *next;	1071	struct coro *prev, *next;
835	};	1072	};
836		1073
837	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	1074	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1075	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
838		1076
839	/** high level stuff ********************************************************/	1077	/** high level stuff ********************************************************/
840		1078
841	static int	1079	static int
842	coro_state_destroy (struct coro *coro)	1080	coro_state_destroy (pTHX_ struct coro *coro)
843	{	1081	{
844	if (coro->flags & CF_DESTROYED)	1082	if (coro->flags & CF_DESTROYED)
845	return 0;	1083	return 0;
846		1084
847	coro->flags |= CF_DESTROYED;	1085	coro->flags |= CF_DESTROYED;
…		…
859		1097
860	if (coro->mainstack && coro->mainstack != main_mainstack)	1098	if (coro->mainstack && coro->mainstack != main_mainstack)
861	{	1099	{
862	struct coro temp;	1100	struct coro temp;
863		1101
864	assert (!(coro->flags & CF_RUNNING));
865
866	Zero (&temp, 1, struct coro);
867	temp.save = CORO_SAVE_ALL;
868
869	if (coro->flags & CF_RUNNING)	1102	if (coro->flags & CF_RUNNING)
870	croak ("FATAL: tried to destroy currently running coroutine");	1103	croak ("FATAL: tried to destroy currently running coroutine");
871		1104
872	save_perl (&temp);	1105	save_perl (aTHX_ &temp);
873	load_perl (coro);	1106	load_perl (aTHX_ coro);
874		1107
875	coro_destroy_stacks ();	1108	coro_destroy (aTHX_ coro);
876		1109
877	load_perl (&temp); /* this will get rid of defsv etc.. */	1110	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
878		1111
879	coro->mainstack = 0;	1112	coro->mainstack = 0;
880	}	1113	}
881		1114
882	cctx_destroy (coro->cctx);	1115	cctx_destroy (coro->cctx);
883	SvREFCNT_dec (coro->args);	1116	SvREFCNT_dec (coro->args);
884		1117
		1118	if (coro->next) coro->next->prev = coro->prev;
		1119	if (coro->prev) coro->prev->next = coro->next;
		1120	if (coro == coro_first) coro_first = coro->next;
		1121
885	return 1;	1122	return 1;
886	}	1123	}
887		1124
888	static int	1125	static int
889	coro_state_free (pTHX_ SV *sv, MAGIC *mg)	1126	coro_state_free (pTHX_ SV *sv, MAGIC *mg)
890	{	1127	{
891	struct coro *coro = (struct coro *)mg->mg_ptr;	1128	struct coro *coro = (struct coro *)mg->mg_ptr;
892	mg->mg_ptr = 0;	1129	mg->mg_ptr = 0;
893		1130
		1131	coro->hv = 0;
		1132
894	if (--coro->refcnt < 0)	1133	if (--coro->refcnt < 0)
895	{	1134	{
896	coro_state_destroy (coro);	1135	coro_state_destroy (aTHX_ coro);
897	Safefree (coro);	1136	Safefree (coro);
898	}	1137	}
899		1138
900	return 0;	1139	return 0;
901	}	1140	}
…		…
919	#else	1158	#else
920	# define MGf_DUP 0	1159	# define MGf_DUP 0
921	#endif	1160	#endif
922	};	1161	};
923		1162
924	static struct coro *
925	SvSTATE (SV *coro)
926	{
927	HV *stash;
928	MAGIC *mg;
929
930	if (SvROK (coro))
931	coro = SvRV (coro);
932
933	stash = SvSTASH (coro);
934	if (stash != coro_stash && stash != coro_state_stash)
935	{
936	/* very slow, but rare, check */
937	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
938	croak ("Coro::State object required");
939	}
940
941	mg = SvMAGIC (coro);
942	assert (mg->mg_type == PERL_MAGIC_ext);
943	return (struct coro *)mg->mg_ptr;
944	}
945
946	static void	1163	static void
947	prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv)	1164	prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
948	{	1165	{
949	ta->prev = SvSTATE (prev_sv);	1166	ta->prev = SvSTATE (prev_sv);
950	ta->next = SvSTATE (next_sv);	1167	ta->next = SvSTATE (next_sv);
		1168	TRANSFER_CHECK (*ta);
951	}	1169	}
952		1170
953	static void	1171	static void
954	api_transfer (SV *prev_sv, SV *next_sv)	1172	api_transfer (SV *prev_sv, SV *next_sv)
955	{	1173	{
		1174	dTHX;
956	struct transfer_args ta;	1175	struct transfer_args ta;
957		1176
958	prepare_transfer (&ta, prev_sv, next_sv);	1177	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
959	TRANSFER (ta);	1178	TRANSFER (ta);
960	}	1179	}
961		1180
962	static int
963	api_save (SV *coro_sv, int new_save)
964	{
965	struct coro *coro = SvSTATE (coro_sv);
966	int old_save = coro->save;
967
968	if (new_save >= 0)
969	coro->save = new_save;
970
971	return old_save;
972	}
973
974	/** Coro ********************************************************************/	1181	/** Coro ********************************************************************/
975		1182
976	static void	1183	static void
977	coro_enq (SV *coro_sv)	1184	coro_enq (pTHX_ SV *coro_sv)
978	{	1185	{
979	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1186	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
980	}	1187	}
981		1188
982	static SV *	1189	static SV *
983	coro_deq (int min_prio)	1190	coro_deq (pTHX_ int min_prio)
984	{	1191	{
985	int prio = PRIO_MAX - PRIO_MIN;	1192	int prio = PRIO_MAX - PRIO_MIN;
986		1193
987	min_prio -= PRIO_MIN;	1194	min_prio -= PRIO_MIN;
988	if (min_prio < 0)	1195	if (min_prio < 0)
…		…
996	}	1203	}
997		1204
998	static int	1205	static int
999	api_ready (SV *coro_sv)	1206	api_ready (SV *coro_sv)
1000	{	1207	{
		1208	dTHX;
1001	struct coro *coro;	1209	struct coro *coro;
1002		1210
1003	if (SvROK (coro_sv))	1211	if (SvROK (coro_sv))
1004	coro_sv = SvRV (coro_sv);	1212	coro_sv = SvRV (coro_sv);
1005		1213
…		…
1009	return 0;	1217	return 0;
1010		1218
1011	coro->flags |= CF_READY;	1219	coro->flags |= CF_READY;
1012		1220
1013	LOCK;	1221	LOCK;
1014	coro_enq (SvREFCNT_inc (coro_sv));	1222	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1015	++coro_nready;	1223	++coro_nready;
1016	UNLOCK;	1224	UNLOCK;
1017		1225
1018	return 1;	1226	return 1;
1019	}	1227	}
1020		1228
1021	static int	1229	static int
1022	api_is_ready (SV *coro_sv)	1230	api_is_ready (SV *coro_sv)
1023	{	1231	{
		1232	dTHX;
1024	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1233	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1025	}	1234	}
1026		1235
1027	static void	1236	static void
1028	prepare_schedule (struct transfer_args *ta)	1237	prepare_schedule (pTHX_ struct transfer_args *ta)
1029	{	1238	{
1030	SV *prev_sv, *next_sv;	1239	SV *prev_sv, *next_sv;
1031		1240
1032	for (;;)	1241	for (;;)
1033	{	1242	{
1034	LOCK;	1243	LOCK;
1035	next_sv = coro_deq (PRIO_MIN);	1244	next_sv = coro_deq (aTHX_ PRIO_MIN);
1036		1245
1037	/* nothing to schedule: call the idle handler */	1246	/* nothing to schedule: call the idle handler */
1038	if (!next_sv)	1247	if (!next_sv)
1039	{	1248	{
1040	dSP;	1249	dSP;
…		…
1068	break;	1277	break;
1069	}	1278	}
1070		1279
1071	/* free this only after the transfer */	1280	/* free this only after the transfer */
1072	prev_sv = SvRV (coro_current);	1281	prev_sv = SvRV (coro_current);
1073	SvRV_set (coro_current, next_sv);
1074	ta->prev = SvSTATE (prev_sv);	1282	ta->prev = SvSTATE (prev_sv);
1075		1283	TRANSFER_CHECK (*ta);
1076	assert (ta->next->flags & CF_READY);	1284	assert (ta->next->flags & CF_READY);
1077	ta->next->flags &= ~CF_READY;	1285	ta->next->flags &= ~CF_READY;
		1286	SvRV_set (coro_current, next_sv);
1078		1287
1079	LOCK;	1288	LOCK;
1080	free_coro_mortal ();	1289	free_coro_mortal (aTHX);
1081	coro_mortal = prev_sv;	1290	coro_mortal = prev_sv;
1082	UNLOCK;	1291	UNLOCK;
1083	}	1292	}
1084		1293
1085	static void	1294	static void
1086	prepare_cede (struct transfer_args *ta)	1295	prepare_cede (pTHX_ struct transfer_args *ta)
1087	{	1296	{
1088	api_ready (coro_current);	1297	api_ready (coro_current);
1089	prepare_schedule (ta);	1298	prepare_schedule (aTHX_ ta);
1090	}	1299	}
1091		1300
1092	static int	1301	static int
1093	prepare_cede_notself (struct transfer_args *ta)	1302	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1094	{	1303	{
1095	if (coro_nready)	1304	if (coro_nready)
1096	{	1305	{
1097	SV *prev = SvRV (coro_current);	1306	SV *prev = SvRV (coro_current);
1098	prepare_schedule (ta);	1307	prepare_schedule (aTHX_ ta);
1099	api_ready (prev);	1308	api_ready (prev);
1100	return 1;	1309	return 1;
1101	}	1310	}
1102	else	1311	else
1103	return 0;	1312	return 0;
1104	}	1313	}
1105		1314
1106	static void	1315	static void
1107	api_schedule (void)	1316	api_schedule (void)
1108	{	1317	{
		1318	dTHX;
1109	struct transfer_args ta;	1319	struct transfer_args ta;
1110		1320
1111	prepare_schedule (&ta);	1321	prepare_schedule (aTHX_ &ta);
1112	TRANSFER (ta);	1322	TRANSFER (ta);
1113	}	1323	}
1114		1324
1115	static int	1325	static int
1116	api_cede (void)	1326	api_cede (void)
1117	{	1327	{
		1328	dTHX;
1118	struct transfer_args ta;	1329	struct transfer_args ta;
1119		1330
1120	prepare_cede (&ta);	1331	prepare_cede (aTHX_ &ta);
1121		1332
1122	if (ta.prev != ta.next)	1333	if (ta.prev != ta.next)
1123	{	1334	{
1124	TRANSFER (ta);	1335	TRANSFER (ta);
1125	return 1;	1336	return 1;
…		…
1129	}	1340	}
1130		1341
1131	static int	1342	static int
1132	api_cede_notself (void)	1343	api_cede_notself (void)
1133	{	1344	{
		1345	dTHX;
1134	struct transfer_args ta;	1346	struct transfer_args ta;
1135		1347
1136	if (prepare_cede_notself (&ta))	1348	if (prepare_cede_notself (aTHX_ &ta))
1137	{	1349	{
1138	TRANSFER (ta);	1350	TRANSFER (ta);
1139	return 1;	1351	return 1;
1140	}	1352	}
1141	else	1353	else
1142	return 0;	1354	return 0;
1143	}	1355	}
1144		1356
		1357	static void
		1358	api_trace (SV *coro_sv, int flags)
		1359	{
		1360	dTHX;
		1361	struct coro *coro = SvSTATE (coro_sv);
		1362
		1363	if (flags & CC_TRACE)
		1364	{
		1365	if (!coro->cctx)
		1366	coro->cctx = cctx_new ();
		1367	else if (!(coro->cctx->flags & CC_TRACE))
		1368	croak ("cannot enable tracing on coroutine with custom stack");
		1369
		1370	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
		1371	}
		1372	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1373	{
		1374	coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
		1375
		1376	if (coro->flags & CF_RUNNING)
		1377	PL_runops = RUNOPS_DEFAULT;
		1378	else
		1379	coro->runops = RUNOPS_DEFAULT;
		1380	}
		1381	}
		1382
1145	MODULE = Coro::State PACKAGE = Coro::State	1383	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1146		1384
1147	PROTOTYPES: DISABLE	1385	PROTOTYPES: DISABLE
1148		1386
1149	BOOT:	1387	BOOT:
1150	{	1388	{
1151	#ifdef USE_ITHREADS	1389	#ifdef USE_ITHREADS
1152	MUTEX_INIT (&coro_mutex);	1390	MUTEX_INIT (&coro_mutex);
1153	#endif	1391	#endif
1154	BOOT_PAGESIZE;	1392	BOOT_PAGESIZE;
1155		1393
		1394	irsgv = gv_fetchpv ("/", 1, SVt_PV);
		1395
1156	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1396	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1157		1397
		1398	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1399	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1158	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1400	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1159	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1160	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1161	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1162	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1401	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1163		1402
1164	main_mainstack = PL_mainstack;	1403	main_mainstack = PL_mainstack;
		1404	main_top_env = PL_top_env;
		1405
		1406	while (main_top_env->je_prev)
		1407	main_top_env = main_top_env->je_prev;
1165		1408
1166	coroapi.ver = CORO_API_VERSION;	1409	coroapi.ver = CORO_API_VERSION;
1167	coroapi.transfer = api_transfer;	1410	coroapi.transfer = api_transfer;
1168		1411
1169	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1412	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1176	struct coro *coro;	1419	struct coro *coro;
1177	HV *hv;	1420	HV *hv;
1178	int i;	1421	int i;
1179		1422
1180	Newz (0, coro, 1, struct coro);	1423	Newz (0, coro, 1, struct coro);
1181	coro->args = newAV ();	1424	coro->args = newAV ();
1182	coro->save = CORO_SAVE_ALL;
1183	coro->flags = CF_NEW;	1425	coro->flags = CF_NEW;
1184		1426
		1427	if (coro_first) coro_first->prev = coro;
		1428	coro->next = coro_first;
		1429	coro_first = coro;
		1430
1185	hv = newHV ();	1431	coro->hv = hv = newHV ();
1186	sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;	1432	sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1187	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1433	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1188		1434
1189	for (i = 1; i < items; i++)	1435	for (i = 1; i < items; i++)
1190	av_push (coro->args, newSVsv (ST (i)));	1436	av_push (coro->args, newSVsv (ST (i)));
1191	}	1437	}
1192	OUTPUT:	1438	OUTPUT:
1193	RETVAL	1439	RETVAL
1194		1440
1195	int	1441	# these not obviously related functions are all rolled into the same xs
1196	save (SV *coro, int new_save = -1)	1442	# function to increase chances that they all will call transfer with the same
1197	CODE:	1443	# stack offset
1198	RETVAL = api_save (coro, new_save);
1199	OUTPUT:
1200	RETVAL
1201
1202	void	1444	void
1203	_set_stacklevel (...)	1445	_set_stacklevel (...)
1204	ALIAS:	1446	ALIAS:
1205	Coro::State::transfer = 1	1447	Coro::State::transfer = 1
1206	Coro::schedule = 2	1448	Coro::schedule = 2
…		…
1219		1461
1220	case 1:	1462	case 1:
1221	if (items != 2)	1463	if (items != 2)
1222	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1464	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1223		1465
1224	prepare_transfer (&ta, ST (0), ST (1));	1466	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1225	break;	1467	break;
1226		1468
1227	case 2:	1469	case 2:
1228	prepare_schedule (&ta);	1470	prepare_schedule (aTHX_ &ta);
1229	break;	1471	break;
1230		1472
1231	case 3:	1473	case 3:
1232	prepare_cede (&ta);	1474	prepare_cede (aTHX_ &ta);
1233	break;	1475	break;
1234		1476
1235	case 4:	1477	case 4:
1236	if (!prepare_cede_notself (&ta))	1478	if (!prepare_cede_notself (aTHX_ &ta))
1237	XSRETURN_EMPTY;	1479	XSRETURN_EMPTY;
1238		1480
1239	break;	1481	break;
1240	}	1482	}
1241		1483
…		…
1247	}	1489	}
1248		1490
1249	bool	1491	bool
1250	_destroy (SV *coro_sv)	1492	_destroy (SV *coro_sv)
1251	CODE:	1493	CODE:
1252	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1494	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1253	OUTPUT:	1495	OUTPUT:
1254	RETVAL	1496	RETVAL
1255		1497
1256	void	1498	void
1257	_exit (code)	1499	_exit (code)
…		…
1259	PROTOTYPE: $	1501	PROTOTYPE: $
1260	CODE:	1502	CODE:
1261	_exit (code);	1503	_exit (code);
1262		1504
1263	int	1505	int
		1506	cctx_stacksize (int new_stacksize = 0)
		1507	CODE:
		1508	RETVAL = coro_stacksize;
		1509	if (new_stacksize)
		1510	coro_stacksize = new_stacksize;
		1511	OUTPUT:
		1512	RETVAL
		1513
		1514	int
1264	cctx_count ()	1515	cctx_count ()
1265	CODE:	1516	CODE:
1266	RETVAL = cctx_count;	1517	RETVAL = cctx_count;
1267	OUTPUT:	1518	OUTPUT:
1268	RETVAL	1519	RETVAL
…		…
1272	CODE:	1523	CODE:
1273	RETVAL = cctx_idle;	1524	RETVAL = cctx_idle;
1274	OUTPUT:	1525	OUTPUT:
1275	RETVAL	1526	RETVAL
1276		1527
		1528	void
		1529	list ()
		1530	PPCODE:
		1531	{
		1532	struct coro *coro;
		1533	for (coro = coro_first; coro; coro = coro->next)
		1534	if (coro->hv)
		1535	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1536	}
		1537
		1538	void
		1539	call (Coro::State coro, SV *coderef)
		1540	ALIAS:
		1541	eval = 1
		1542	CODE:
		1543	{
		1544	if (coro->mainstack)
		1545	{
		1546	struct coro temp;
		1547	Zero (&temp, 1, struct coro);
		1548
		1549	if (!(coro->flags & CF_RUNNING))
		1550	{
		1551	save_perl (aTHX_ &temp);
		1552	load_perl (aTHX_ coro);
		1553	}
		1554
		1555	{
		1556	dSP;
		1557	ENTER;
		1558	SAVETMPS;
		1559	PUSHMARK (SP);
		1560	PUTBACK;
		1561	if (ix)
		1562	eval_sv (coderef, 0);
		1563	else
		1564	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
		1565	SPAGAIN;
		1566	FREETMPS;
		1567	LEAVE;
		1568	PUTBACK;
		1569	}
		1570
		1571	if (!(coro->flags & CF_RUNNING))
		1572	{
		1573	save_perl (aTHX_ coro);
		1574	load_perl (aTHX_ &temp);
		1575	}
		1576	}
		1577	}
		1578
		1579	SV *
		1580	is_ready (Coro::State coro)
		1581	PROTOTYPE: $
		1582	ALIAS:
		1583	is_ready = CF_READY
		1584	is_running = CF_RUNNING
		1585	is_new = CF_NEW
		1586	is_destroyed = CF_DESTROYED
		1587	CODE:
		1588	RETVAL = boolSV (coro->flags & ix);
		1589	OUTPUT:
		1590	RETVAL
		1591
		1592	void
		1593	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
		1594
		1595	SV *
		1596	has_stack (Coro::State coro)
		1597	PROTOTYPE: $
		1598	CODE:
		1599	RETVAL = boolSV (!!coro->cctx);
		1600	OUTPUT:
		1601	RETVAL
		1602
		1603	int
		1604	is_traced (Coro::State coro)
		1605	PROTOTYPE: $
		1606	CODE:
		1607	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1608	OUTPUT:
		1609	RETVAL
		1610
		1611	IV
		1612	rss (Coro::State coro)
		1613	PROTOTYPE: $
		1614	ALIAS:
		1615	usecount = 1
		1616	CODE:
		1617	switch (ix)
		1618	{
		1619	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1620	case 1: RETVAL = coro->usecount; break;
		1621	}
		1622	OUTPUT:
		1623	RETVAL
		1624
		1625
1277	MODULE = Coro::State PACKAGE = Coro	1626	MODULE = Coro::State PACKAGE = Coro
1278		1627
1279	BOOT:	1628	BOOT:
1280	{	1629	{
1281	int i;	1630	int i;
		1631
		1632	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1633	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1634	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1635
		1636	coro_current = get_sv ("Coro::current", FALSE);
		1637	SvREADONLY_on (coro_current);
1282		1638
1283	coro_stash = gv_stashpv ("Coro", TRUE);	1639	coro_stash = gv_stashpv ("Coro", TRUE);
1284		1640
1285	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1641	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1286	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1642	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1287	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1643	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1288	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1644	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1289	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1645	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1290	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1646	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1291		1647
1292	coro_current = get_sv ("Coro::current", FALSE);
1293	SvREADONLY_on (coro_current);
1294
1295	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1648	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1296	coro_ready[i] = newAV ();	1649	coro_ready[i] = newAV ();
1297		1650
1298	{	1651	{
1299	SV *sv = perl_get_sv("Coro::API", 1);	1652	SV *sv = perl_get_sv("Coro::API", 1);
1300		1653
1301	coroapi.schedule = api_schedule;	1654	coroapi.schedule = api_schedule;
1302	coroapi.save = api_save;
1303	coroapi.cede = api_cede;	1655	coroapi.cede = api_cede;
1304	coroapi.cede_notself = api_cede_notself;	1656	coroapi.cede_notself = api_cede_notself;
1305	coroapi.ready = api_ready;	1657	coroapi.ready = api_ready;
1306	coroapi.is_ready = api_is_ready;	1658	coroapi.is_ready = api_is_ready;
1307	coroapi.nready = &coro_nready;	1659	coroapi.nready = &coro_nready;
…		…
1348	CODE:	1700	CODE:
1349	RETVAL = boolSV (api_ready (self));	1701	RETVAL = boolSV (api_ready (self));
1350	OUTPUT:	1702	OUTPUT:
1351	RETVAL	1703	RETVAL
1352		1704
1353	SV *
1354	is_ready (SV *self)
1355	PROTOTYPE: $
1356	CODE:
1357	RETVAL = boolSV (api_is_ready (self));
1358	OUTPUT:
1359	RETVAL
1360
1361	int	1705	int
1362	nready (...)	1706	nready (...)
1363	PROTOTYPE:	1707	PROTOTYPE:
1364	CODE:	1708	CODE:
1365	RETVAL = coro_nready;	1709	RETVAL = coro_nready;
1366	OUTPUT:	1710	OUTPUT:
1367	RETVAL	1711	RETVAL
1368		1712
		1713	# for async_pool speedup
		1714	void
		1715	_pool_1 (SV *cb)
		1716	CODE:
		1717	{
		1718	struct coro *coro = SvSTATE (coro_current);
		1719	HV *hv = (HV *)SvRV (coro_current);
		1720	AV *defav = GvAV (PL_defgv);
		1721	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1722	AV *invoke_av;
		1723	int i, len;
		1724
		1725	if (!invoke)
		1726	croak ("\3terminate\2\n");
		1727
		1728	SvREFCNT_dec (coro->asp_deffh);
		1729	coro->asp_deffh = SvREFCNT_inc (PL_defoutgv);
		1730
		1731	hv_store (hv, "desc", sizeof ("desc") - 1,
		1732	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1733
		1734	invoke_av = (AV *)SvRV (invoke);
		1735	len = av_len (invoke_av);
		1736
		1737	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1738
		1739	if (len > 0)
		1740	{
		1741	av_fill (defav, len - 1);
		1742	for (i = 0; i < len; ++i)
		1743	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1744	}
		1745
		1746	SvREFCNT_dec (invoke);
		1747	}
		1748
		1749	void
		1750	_pool_2 (SV *cb)
		1751	CODE:
		1752	{
		1753	struct coro *coro = SvSTATE (coro_current);
		1754
		1755	sv_setsv (cb, &PL_sv_undef);
		1756
		1757	SvREFCNT_dec (PL_defoutgv); PL_defoutgv = coro->asp_deffh;
		1758	coro->asp_deffh = 0;
		1759
		1760	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1761	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1762	croak ("\3terminate\2\n");
		1763
		1764	av_clear (GvAV (PL_defgv));
		1765	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1766	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1767
		1768	coro->prio = 0;
		1769
		1770	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1771	api_trace (coro_current, 0);
		1772
		1773	av_push (av_async_pool, newSVsv (coro_current));
		1774	}
		1775
		1776
1369	MODULE = Coro::State PACKAGE = Coro::AIO	1777	MODULE = Coro::State PACKAGE = Coro::AIO
1370		1778
1371	SV *	1779	SV *
1372	_get_state ()	1780	_get_state ()
1373	CODE:	1781	CODE:

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