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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.320 by root, Fri Nov 21 07:29:04 2008 UTC vs.
Revision 1.362 by root, Wed Jul 1 07:58:45 2009 UTC

…		…
101	# define CvISXSUB_on(cv) (void)cv	101	# define CvISXSUB_on(cv) (void)cv
102	#endif	102	#endif
103	#ifndef CvISXSUB	103	#ifndef CvISXSUB
104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)	104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105	#endif	105	#endif
		106	#ifndef Newx
		107	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
		108	#endif
106		109
107	/* 5.8.7 */	110	/* 5.8.7 */
108	#ifndef SvRV_set	111	#ifndef SvRV_set
109	# define SvRV_set(s,v) SvRV(s) = (v)	112	# define SvRV_set(s,v) SvRV(s) = (v)
110	#endif	113	#endif
…		…
130	#else	133	#else
131	# define dSTACKLEVEL volatile void *stacklevel	134	# define dSTACKLEVEL volatile void *stacklevel
132	# define STACKLEVEL ((void *)&stacklevel)	135	# define STACKLEVEL ((void *)&stacklevel)
133	#endif	136	#endif
134		137
135	#define IN_DESTRUCT (PL_main_cv == Nullcv)	138	#define IN_DESTRUCT PL_dirty
136		139
137	#if __GNUC__ >= 3	140	#if __GNUC__ >= 3
138	# define attribute(x) __attribute__(x)	141	# define attribute(x) __attribute__(x)
139	# define expect(expr,value) __builtin_expect ((expr),(value))	142	# define expect(expr,value) __builtin_expect ((expr), (value))
140	# define INLINE static inline	143	# define INLINE static inline
141	#else	144	#else
142	# define attribute(x)	145	# define attribute(x)
143	# define expect(expr,value) (expr)	146	# define expect(expr,value) (expr)
144	# define INLINE static	147	# define INLINE static
…		…
156	# if CORO_PTHREAD	159	# if CORO_PTHREAD
157	static void *coro_thx;	160	static void *coro_thx;
158	# endif	161	# endif
159	#endif	162	#endif
160		163
		164	#ifdef __linux
		165	# include <time.h> /* for timespec */
		166	# include <syscall.h> /* for SYS_* */
		167	# ifdef SYS_clock_gettime
		168	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		169	# define CORO_CLOCK_MONOTONIC 1
		170	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
		171	# endif
		172	#endif
		173
161	static double (*nvtime)(); /* so why doesn't it take void? */	174	static double (*nvtime)(); /* so why doesn't it take void? */
		175	static void (*u2time)(pTHX_ UV ret[2]);
162		176
163	/* we hijack an hopefully unused CV flag for our purposes */	177	/* we hijack an hopefully unused CV flag for our purposes */
164	#define CVf_SLF 0x4000	178	#define CVf_SLF 0x4000
165	static OP *pp_slf (pTHX);	179	static OP *pp_slf (pTHX);
166		180
…		…
172	static HV *coro_state_stash, *coro_stash;	186	static HV *coro_state_stash, *coro_stash;
173	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */	187	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
174		188
175	static AV *av_destroy; /* destruction queue */	189	static AV *av_destroy; /* destruction queue */
176	static SV *sv_manager; /* the manager coro */	190	static SV *sv_manager; /* the manager coro */
		191	static SV *sv_idle; /* $Coro::idle */
177		192
178	static GV *irsgv; /* $/ */	193	static GV *irsgv; /* $/ */
179	static GV *stdoutgv; /* *STDOUT */	194	static GV *stdoutgv; /* *STDOUT */
180	static SV *rv_diehook;	195	static SV *rv_diehook;
181	static SV *rv_warnhook;	196	static SV *rv_warnhook;
…		…
191	static CV *cv_coro_state_new;	206	static CV *cv_coro_state_new;
192		207
193	/* Coro::AnyEvent */	208	/* Coro::AnyEvent */
194	static SV *sv_activity;	209	static SV *sv_activity;
195		210
		211	/* enable processtime/realtime profiling */
		212	static char enable_times;
		213	typedef U32 coro_ts[2];
		214	static coro_ts time_real, time_cpu;
		215	static char times_valid;
		216
196	static struct coro_cctx *cctx_first;	217	static struct coro_cctx *cctx_first;
197	static int cctx_count, cctx_idle;	218	static int cctx_count, cctx_idle;
198		219
199	enum {	220	enum {
200	CC_MAPPED = 0x01,	221	CC_MAPPED = 0x01,
…		…
225	int valgrind_id;	246	int valgrind_id;
226	#endif	247	#endif
227	unsigned char flags;	248	unsigned char flags;
228	} coro_cctx;	249	} coro_cctx;
229		250
		251	coro_cctx *cctx_current; /* the currently running cctx */
		252
		253	/*****************************************************************************/
		254
230	enum {	255	enum {
231	CF_RUNNING = 0x0001, /* coroutine is running */	256	CF_RUNNING = 0x0001, /* coroutine is running */
232	CF_READY = 0x0002, /* coroutine is ready */	257	CF_READY = 0x0002, /* coroutine is ready */
233	CF_NEW = 0x0004, /* has never been switched to */	258	CF_NEW = 0x0004, /* has never been switched to */
234	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	259	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		260	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
235	};	261	};
236		262
237	/* the structure where most of the perl state is stored, overlaid on the cxstack */	263	/* the structure where most of the perl state is stored, overlaid on the cxstack */
238	typedef struct	264	typedef struct
239	{	265	{
240	SV *defsv;	266	SV *defsv;
241	AV *defav;	267	AV *defav;
242	SV *errsv;	268	SV *errsv;
243	SV *irsgv;	269	SV *irsgv;
		270	HV *hinthv;
244	#define VAR(name,type) type name;	271	#define VAR(name,type) type name;
245	# include "state.h"	272	# include "state.h"
246	#undef VAR	273	#undef VAR
247	} perl_slots;	274	} perl_slots;
248		275
…		…
250		277
251	/* this is a structure representing a perl-level coroutine */	278	/* this is a structure representing a perl-level coroutine */
252	struct coro {	279	struct coro {
253	/* the C coroutine allocated to this perl coroutine, if any */	280	/* the C coroutine allocated to this perl coroutine, if any */
254	coro_cctx *cctx;	281	coro_cctx *cctx;
		282
		283	/* ready queue */
		284	struct coro *next_ready;
255		285
256	/* state data */	286	/* state data */
257	struct CoroSLF slf_frame; /* saved slf frame */	287	struct CoroSLF slf_frame; /* saved slf frame */
258	AV *mainstack;	288	AV *mainstack;
259	perl_slots *slot; /* basically the saved sp */	289	perl_slots *slot; /* basically the saved sp */
…		…
276	/* async_pool */	306	/* async_pool */
277	SV *saved_deffh;	307	SV *saved_deffh;
278	SV *invoke_cb;	308	SV *invoke_cb;
279	AV *invoke_av;	309	AV *invoke_av;
280		310
		311	/* on_enter/on_leave */
		312	AV *on_enter;
		313	AV *on_leave;
		314
		315	/* times */
		316	coro_ts t_cpu, t_real;
		317
281	/* linked list */	318	/* linked list */
282	struct coro *next, *prev;	319	struct coro *next, *prev;
283	};	320	};
284		321
285	typedef struct coro *Coro__State;	322	typedef struct coro *Coro__State;
…		…
290	/* the mainr easonw e don't support windows process emulation */	327	/* the mainr easonw e don't support windows process emulation */
291	static struct CoroSLF slf_frame; /* the current slf frame */	328	static struct CoroSLF slf_frame; /* the current slf frame */
292		329
293	/** Coro ********************************************************************/	330	/** Coro ********************************************************************/
294		331
295	#define PRIO_MAX 3	332	#define CORO_PRIO_MAX 3
296	#define PRIO_HIGH 1	333	#define CORO_PRIO_HIGH 1
297	#define PRIO_NORMAL 0	334	#define CORO_PRIO_NORMAL 0
298	#define PRIO_LOW -1	335	#define CORO_PRIO_LOW -1
299	#define PRIO_IDLE -3	336	#define CORO_PRIO_IDLE -3
300	#define PRIO_MIN -4	337	#define CORO_PRIO_MIN -4
301		338
302	/* for Coro.pm */	339	/* for Coro.pm */
303	static SV *coro_current;	340	static SV *coro_current;
304	static SV *coro_readyhook;	341	static SV *coro_readyhook;
305	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	342	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
306	static CV *cv_coro_run, *cv_coro_terminate;	343	static CV *cv_coro_run, *cv_coro_terminate;
307	static struct coro *coro_first;	344	static struct coro *coro_first;
308	#define coro_nready coroapi.nready	345	#define coro_nready coroapi.nready
309		346
310	/** lowlevel stuff **********************************************************/	347	/** lowlevel stuff **********************************************************/
…		…
343	INLINE CV *	380	INLINE CV *
344	coro_sv_2cv (pTHX_ SV *sv)	381	coro_sv_2cv (pTHX_ SV *sv)
345	{	382	{
346	HV *st;	383	HV *st;
347	GV *gvp;	384	GV *gvp;
348	return sv_2cv (sv, &st, &gvp, 0);	385	CV *cv = sv_2cv (sv, &st, &gvp, 0);
		386
		387	if (!cv)
		388	croak ("code reference expected");
		389
		390	return cv;
349	}	391	}
		392
		393	INLINE void
		394	coro_times_update ()
		395	{
		396	#ifdef coro_clock_gettime
		397	struct timespec ts;
		398
		399	ts.tv_sec = ts.tv_nsec = 0;
		400	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		401	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
		402
		403	ts.tv_sec = ts.tv_nsec = 0;
		404	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		405	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		406	#else
		407	dTHX;
		408	UV tv[2];
		409
		410	u2time (aTHX_ tv);
		411	time_real [0] = tv [0];
		412	time_real [1] = tv [1] * 1000;
		413	#endif
		414	}
		415
		416	INLINE void
		417	coro_times_add (struct coro *c)
		418	{
		419	c->t_real [1] += time_real [1];
		420	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		421	c->t_real [0] += time_real [0];
		422
		423	c->t_cpu [1] += time_cpu [1];
		424	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		425	c->t_cpu [0] += time_cpu [0];
		426	}
		427
		428	INLINE void
		429	coro_times_sub (struct coro *c)
		430	{
		431	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		432	c->t_real [1] -= time_real [1];
		433	c->t_real [0] -= time_real [0];
		434
		435	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		436	c->t_cpu [1] -= time_cpu [1];
		437	c->t_cpu [0] -= time_cpu [0];
		438	}
		439
		440	/*****************************************************************************/
		441	/* magic glue */
		442
		443	#define CORO_MAGIC_type_cv 26
		444	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		445
		446	#define CORO_MAGIC_NN(sv, type) \
		447	(expect_true (SvMAGIC (sv)->mg_type == type) \
		448	? SvMAGIC (sv) \
		449	: mg_find (sv, type))
		450
		451	#define CORO_MAGIC(sv, type) \
		452	(expect_true (SvMAGIC (sv)) \
		453	? CORO_MAGIC_NN (sv, type) \
		454	: 0)
		455
		456	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		457	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		458
		459	INLINE struct coro *
		460	SvSTATE_ (pTHX_ SV *coro)
		461	{
		462	HV *stash;
		463	MAGIC *mg;
		464
		465	if (SvROK (coro))
		466	coro = SvRV (coro);
		467
		468	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		469	croak ("Coro::State object required");
		470
		471	stash = SvSTASH (coro);
		472	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		473	{
		474	/* very slow, but rare, check */
		475	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		476	croak ("Coro::State object required");
		477	}
		478
		479	mg = CORO_MAGIC_state (coro);
		480	return (struct coro *)mg->mg_ptr;
		481	}
		482
		483	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		484
		485	/* faster than SvSTATE, but expects a coroutine hv */
		486	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		487	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		488
		489	/*****************************************************************************/
		490	/* padlist management and caching */
350		491
351	static AV *	492	static AV *
352	coro_clone_padlist (pTHX_ CV *cv)	493	coro_derive_padlist (pTHX_ CV *cv)
353	{	494	{
354	AV *padlist = CvPADLIST (cv);	495	AV *padlist = CvPADLIST (cv);
355	AV *newpadlist, *newpad;	496	AV *newpadlist, *newpad;
356		497
357	newpadlist = newAV ();	498	newpadlist = newAV ();
…		…
362	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	503	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
363	#endif	504	#endif
364	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	505	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
365	--AvFILLp (padlist);	506	--AvFILLp (padlist);
366		507
367	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	508	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
368	av_store (newpadlist, 1, (SV *)newpad);	509	av_store (newpadlist, 1, (SV *)newpad);
369		510
370	return newpadlist;	511	return newpadlist;
371	}	512	}
372		513
373	static void	514	static void
374	free_padlist (pTHX_ AV *padlist)	515	free_padlist (pTHX_ AV *padlist)
375	{	516	{
376	/* may be during global destruction */	517	/* may be during global destruction */
377	if (SvREFCNT (padlist))	518	if (!IN_DESTRUCT)
378	{	519	{
379	I32 i = AvFILLp (padlist);	520	I32 i = AvFILLp (padlist);
380	while (i >= 0)	521
		522	while (i > 0) /* special-case index 0 */
381	{	523	{
382	SV **svp = av_fetch (padlist, i--, FALSE);	524	/* we try to be extra-careful here */
383	if (svp)	525	AV *av = (AV *)AvARRAY (padlist)[i--];
384	{	526	I32 j = AvFILLp (av);
385	SV *sv;	527
386	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	528	while (j >= 0)
		529	SvREFCNT_dec (AvARRAY (av)[j--]);
		530
		531	AvFILLp (av) = -1;
387	SvREFCNT_dec (sv);	532	SvREFCNT_dec (av);
388
389	SvREFCNT_dec (*svp);
390	}
391	}	533	}
392		534
		535	SvREFCNT_dec (AvARRAY (padlist)[0]);
		536
		537	AvFILLp (padlist) = -1;
393	SvREFCNT_dec ((SV*)padlist);	538	SvREFCNT_dec ((SV*)padlist);
394	}	539	}
395	}	540	}
396		541
397	static int	542	static int
398	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	543	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
399	{	544	{
400	AV *padlist;	545	AV *padlist;
401	AV *av = (AV *)mg->mg_obj;	546	AV *av = (AV *)mg->mg_obj;
		547
		548	/* perl manages to free our internal AV and _then_ call us */
		549	if (IN_DESTRUCT)
		550	return 0;
402		551
403	/* casting is fun. */	552	/* casting is fun. */
404	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	553	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
405	free_padlist (aTHX_ padlist);	554	free_padlist (aTHX_ padlist);
406		555
407	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	556	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
408		557
409	return 0;	558	return 0;
410	}	559	}
411
412	#define CORO_MAGIC_type_cv 26
413	#define CORO_MAGIC_type_state PERL_MAGIC_ext
414		560
415	static MGVTBL coro_cv_vtbl = {	561	static MGVTBL coro_cv_vtbl = {
416	0, 0, 0, 0,	562	0, 0, 0, 0,
417	coro_cv_free	563	coro_cv_free
418	};	564	};
419
420	#define CORO_MAGIC_NN(sv, type) \
421	(expect_true (SvMAGIC (sv)->mg_type == type) \
422	? SvMAGIC (sv) \
423	: mg_find (sv, type))
424
425	#define CORO_MAGIC(sv, type) \
426	(expect_true (SvMAGIC (sv)) \
427	? CORO_MAGIC_NN (sv, type) \
428	: 0)
429
430	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
431	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
432
433	INLINE struct coro *
434	SvSTATE_ (pTHX_ SV *coro)
435	{
436	HV *stash;
437	MAGIC *mg;
438
439	if (SvROK (coro))
440	coro = SvRV (coro);
441
442	if (expect_false (SvTYPE (coro) != SVt_PVHV))
443	croak ("Coro::State object required");
444
445	stash = SvSTASH (coro);
446	if (expect_false (stash != coro_stash && stash != coro_state_stash))
447	{
448	/* very slow, but rare, check */
449	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
450	croak ("Coro::State object required");
451	}
452
453	mg = CORO_MAGIC_state (coro);
454	return (struct coro *)mg->mg_ptr;
455	}
456
457	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
458
459	/* faster than SvSTATE, but expects a coroutine hv */
460	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
461	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
462		565
463	/* the next two functions merely cache the padlists */	566	/* the next two functions merely cache the padlists */
464	static void	567	static void
465	get_padlist (pTHX_ CV *cv)	568	get_padlist (pTHX_ CV *cv)
466	{	569	{
…		…
477	CV *cp = Perl_cv_clone (aTHX_ cv);	580	CV *cp = Perl_cv_clone (aTHX_ cv);
478	CvPADLIST (cv) = CvPADLIST (cp);	581	CvPADLIST (cv) = CvPADLIST (cp);
479	CvPADLIST (cp) = 0;	582	CvPADLIST (cp) = 0;
480	SvREFCNT_dec (cp);	583	SvREFCNT_dec (cp);
481	#else	584	#else
482	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	585	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
483	#endif	586	#endif
484	}	587	}
485	}	588	}
486		589
487	static void	590	static void
…		…
494	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	597	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
495		598
496	av = (AV *)mg->mg_obj;	599	av = (AV *)mg->mg_obj;
497		600
498	if (expect_false (AvFILLp (av) >= AvMAX (av)))	601	if (expect_false (AvFILLp (av) >= AvMAX (av)))
499	av_extend (av, AvMAX (av) + 1);	602	av_extend (av, AvFILLp (av) + 1);
500		603
501	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	604	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
502	}	605	}
503		606
504	/** load & save, init *******************************************************/	607	/** load & save, init *******************************************************/
		608
		609	static void
		610	on_enterleave_call (pTHX_ SV *cb);
505		611
506	static void	612	static void
507	load_perl (pTHX_ Coro__State c)	613	load_perl (pTHX_ Coro__State c)
508	{	614	{
509	perl_slots *slot = c->slot;	615	perl_slots *slot = c->slot;
510	c->slot = 0;	616	c->slot = 0;
511		617
512	PL_mainstack = c->mainstack;	618	PL_mainstack = c->mainstack;
513		619
514	GvSV (PL_defgv) = slot->defsv;	620	GvSV (PL_defgv) = slot->defsv;
515	GvAV (PL_defgv) = slot->defav;	621	GvAV (PL_defgv) = slot->defav;
516	GvSV (PL_errgv) = slot->errsv;	622	GvSV (PL_errgv) = slot->errsv;
517	GvSV (irsgv) = slot->irsgv;	623	GvSV (irsgv) = slot->irsgv;
		624	GvHV (PL_hintgv) = slot->hinthv;
518		625
519	#define VAR(name,type) PL_ ## name = slot->name;	626	#define VAR(name,type) PL_ ## name = slot->name;
520	# include "state.h"	627	# include "state.h"
521	#undef VAR	628	#undef VAR
522		629
…		…
536	PUTBACK;	643	PUTBACK;
537	}	644	}
538		645
539	slf_frame = c->slf_frame;	646	slf_frame = c->slf_frame;
540	CORO_THROW = c->except;	647	CORO_THROW = c->except;
		648
		649	if (expect_false (enable_times))
		650	{
		651	if (expect_false (!times_valid))
		652	coro_times_update ();
		653
		654	coro_times_sub (c);
		655	}
		656
		657	if (expect_false (c->on_enter))
		658	{
		659	int i;
		660
		661	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		662	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		663	}
541	}	664	}
542		665
543	static void	666	static void
544	save_perl (pTHX_ Coro__State c)	667	save_perl (pTHX_ Coro__State c)
545	{	668	{
		669	if (expect_false (c->on_leave))
		670	{
		671	int i;
		672
		673	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		674	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		675	}
		676
		677	times_valid = 0;
		678
		679	if (expect_false (enable_times))
		680	{
		681	coro_times_update (); times_valid = 1;
		682	coro_times_add (c);
		683	}
		684
546	c->except = CORO_THROW;	685	c->except = CORO_THROW;
547	c->slf_frame = slf_frame;	686	c->slf_frame = slf_frame;
548		687
549	{	688	{
550	dSP;	689	dSP;
…		…
563	{	702	{
564	while (expect_true (cxix >= 0))	703	while (expect_true (cxix >= 0))
565	{	704	{
566	PERL_CONTEXT *cx = &ccstk[cxix--];	705	PERL_CONTEXT *cx = &ccstk[cxix--];
567		706
568	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))	707	if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
569	{	708	{
570	CV *cv = cx->blk_sub.cv;	709	CV *cv = cx->blk_sub.cv;
571		710
572	if (expect_true (CvDEPTH (cv)))	711	if (expect_true (CvDEPTH (cv)))
573	{	712	{
…		…
597	/* we manually unroll here, as usually 2 slots is enough */	736	/* we manually unroll here, as usually 2 slots is enough */
598	if (SLOT_COUNT >= 1) CXINC;	737	if (SLOT_COUNT >= 1) CXINC;
599	if (SLOT_COUNT >= 2) CXINC;	738	if (SLOT_COUNT >= 2) CXINC;
600	if (SLOT_COUNT >= 3) CXINC;	739	if (SLOT_COUNT >= 3) CXINC;
601	{	740	{
602	int i;	741	unsigned int i;
603	for (i = 3; i < SLOT_COUNT; ++i)	742	for (i = 3; i < SLOT_COUNT; ++i)
604	CXINC;	743	CXINC;
605	}	744	}
606	cxstack_ix -= SLOT_COUNT; /* undo allocation */	745	cxstack_ix -= SLOT_COUNT; /* undo allocation */
607		746
608	c->mainstack = PL_mainstack;	747	c->mainstack = PL_mainstack;
609		748
610	{	749	{
611	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	750	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
612		751
613	slot->defav = GvAV (PL_defgv);	752	slot->defav = GvAV (PL_defgv);
614	slot->defsv = DEFSV;	753	slot->defsv = DEFSV;
615	slot->errsv = ERRSV;	754	slot->errsv = ERRSV;
616	slot->irsgv = GvSV (irsgv);	755	slot->irsgv = GvSV (irsgv);
		756	slot->hinthv = GvHV (PL_hintgv);
617		757
618	#define VAR(name,type) slot->name = PL_ ## name;	758	#define VAR(name,type) slot->name = PL_ ## name;
619	# include "state.h"	759	# include "state.h"
620	#undef VAR	760	#undef VAR
621	}	761	}
…		…
748	#endif	888	#endif
749		889
750	/*	890	/*
751	* This overrides the default magic get method of %SIG elements.	891	* This overrides the default magic get method of %SIG elements.
752	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	892	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
753	* and instead of tryign to save and restore the hash elements, we just provide	893	* and instead of trying to save and restore the hash elements, we just provide
754	* readback here.	894	* readback here.
755	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
756	* not expecting this to actually change the hook. This is a potential problem
757	* when a schedule happens then, but we ignore this.
758	*/	895	*/
759	static int	896	static int
760	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	897	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
761	{	898	{
762	const char *s = MgPV_nolen_const (mg);	899	const char *s = MgPV_nolen_const (mg);
…		…
815	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	952	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
816		953
817	if (svp)	954	if (svp)
818	{	955	{
819	SV *old = *svp;	956	SV *old = *svp;
820	*svp = newSVsv (sv);	957	*svp = SvOK (sv) ? newSVsv (sv) : 0;
821	SvREFCNT_dec (old);	958	SvREFCNT_dec (old);
822	return 0;	959	return 0;
823	}	960	}
824	}	961	}
825		962
…		…
857		994
858	PL_runops = RUNOPS_DEFAULT;	995	PL_runops = RUNOPS_DEFAULT;
859	PL_curcop = &PL_compiling;	996	PL_curcop = &PL_compiling;
860	PL_in_eval = EVAL_NULL;	997	PL_in_eval = EVAL_NULL;
861	PL_comppad = 0;	998	PL_comppad = 0;
		999	PL_comppad_name = 0;
		1000	PL_comppad_name_fill = 0;
		1001	PL_comppad_name_floor = 0;
862	PL_curpm = 0;	1002	PL_curpm = 0;
863	PL_curpad = 0;	1003	PL_curpad = 0;
864	PL_localizing = 0;	1004	PL_localizing = 0;
865	PL_dirty = 0;	1005	PL_dirty = 0;
866	PL_restartop = 0;	1006	PL_restartop = 0;
867	#if PERL_VERSION_ATLEAST (5,10,0)	1007	#if PERL_VERSION_ATLEAST (5,10,0)
868	PL_parser = 0;	1008	PL_parser = 0;
869	#endif	1009	#endif
		1010	PL_hints = 0;
870		1011
871	/* recreate the die/warn hooks */	1012	/* recreate the die/warn hooks */
872	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	1013	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
873	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	1014	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
874		1015
875	GvSV (PL_defgv) = newSV (0);	1016	GvSV (PL_defgv) = newSV (0);
876	GvAV (PL_defgv) = coro->args; coro->args = 0;	1017	GvAV (PL_defgv) = coro->args; coro->args = 0;
877	GvSV (PL_errgv) = newSV (0);	1018	GvSV (PL_errgv) = newSV (0);
878	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	1019	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		1020	GvHV (PL_hintgv) = 0;
879	PL_rs = newSVsv (GvSV (irsgv));	1021	PL_rs = newSVsv (GvSV (irsgv));
880	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	1022	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
881		1023
882	{	1024	{
883	dSP;	1025	dSP;
…		…
909		1051
910	PL_op = (OP *)&coro_setup_op;	1052	PL_op = (OP *)&coro_setup_op;
911		1053
912	/* copy throw, in case it was set before coro_setup */	1054	/* copy throw, in case it was set before coro_setup */
913	CORO_THROW = coro->except;	1055	CORO_THROW = coro->except;
914	}
915		1056
		1057	if (expect_false (enable_times))
		1058	{
		1059	coro_times_update ();
		1060	coro_times_sub (coro);
		1061	}
		1062	}
		1063
916	static void	1064	static void
917	coro_destruct (pTHX_ struct coro *coro)	1065	coro_unwind_stacks (pTHX)
918	{	1066	{
919	if (!IN_DESTRUCT)	1067	if (!IN_DESTRUCT)
920	{	1068	{
921	/* restore all saved variables and stuff */	1069	/* restore all saved variables and stuff */
922	LEAVE_SCOPE (0);	1070	LEAVE_SCOPE (0);
…		…
930	POPSTACK_TO (PL_mainstack);	1078	POPSTACK_TO (PL_mainstack);
931		1079
932	/* unwind main stack */	1080	/* unwind main stack */
933	dounwind (-1);	1081	dounwind (-1);
934	}	1082	}
		1083	}
935		1084
936	SvREFCNT_dec (GvSV (PL_defgv));	1085	static void
937	SvREFCNT_dec (GvAV (PL_defgv));	1086	coro_destruct_perl (pTHX_ struct coro *coro)
938	SvREFCNT_dec (GvSV (PL_errgv));	1087	{
939	SvREFCNT_dec (PL_defoutgv);	1088	SV *svf [9];
940	SvREFCNT_dec (PL_rs);
941	SvREFCNT_dec (GvSV (irsgv));
942		1089
943	SvREFCNT_dec (PL_diehook);
944	SvREFCNT_dec (PL_warnhook);
945		1090	{
		1091	struct coro *current = SvSTATE_current;
		1092
		1093	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1094
		1095	save_perl (aTHX_ current);
		1096	load_perl (aTHX_ coro);
		1097
		1098	coro_unwind_stacks (aTHX);
		1099	coro_destruct_stacks (aTHX);
		1100
		1101	// now save some sv's to be free'd later
		1102	svf [0] = GvSV (PL_defgv);
		1103	svf [1] = (SV *)GvAV (PL_defgv);
		1104	svf [2] = GvSV (PL_errgv);
		1105	svf [3] = (SV *)PL_defoutgv;
		1106	svf [4] = PL_rs;
		1107	svf [5] = GvSV (irsgv);
		1108	svf [6] = (SV *)GvHV (PL_hintgv);
		1109	svf [7] = PL_diehook;
		1110	svf [8] = PL_warnhook;
		1111	assert (9 == sizeof (svf) / sizeof (*svf));
		1112
		1113	load_perl (aTHX_ current);
		1114	}
		1115
		1116	{
		1117	unsigned int i;
		1118
		1119	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1120	SvREFCNT_dec (svf [i]);
		1121
946	SvREFCNT_dec (coro->saved_deffh);	1122	SvREFCNT_dec (coro->saved_deffh);
947	SvREFCNT_dec (coro->rouse_cb);	1123	SvREFCNT_dec (coro->rouse_cb);
948	SvREFCNT_dec (coro->invoke_cb);	1124	SvREFCNT_dec (coro->invoke_cb);
949	SvREFCNT_dec (coro->invoke_av);	1125	SvREFCNT_dec (coro->invoke_av);
950		1126	}
951	coro_destruct_stacks (aTHX);
952	}	1127	}
953		1128
954	INLINE void	1129	INLINE void
955	free_coro_mortal (pTHX)	1130	free_coro_mortal (pTHX)
956	{	1131	{
…		…
964	static int	1139	static int
965	runops_trace (pTHX)	1140	runops_trace (pTHX)
966	{	1141	{
967	COP *oldcop = 0;	1142	COP *oldcop = 0;
968	int oldcxix = -2;	1143	int oldcxix = -2;
969	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
970	coro_cctx *cctx = coro->cctx;
971		1144
972	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	1145	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
973	{	1146	{
974	PERL_ASYNC_CHECK ();	1147	PERL_ASYNC_CHECK ();
975		1148
976	if (cctx->flags & CC_TRACE_ALL)	1149	if (cctx_current->flags & CC_TRACE_ALL)
977	{	1150	{
978	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	1151	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
979	{	1152	{
980	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1153	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
981	SV **bot, **top;	1154	SV **bot, **top;
982	AV *av = newAV (); /* return values */	1155	AV *av = newAV (); /* return values */
983	SV **cb;	1156	SV **cb;
…		…
1020		1193
1021	if (PL_curcop != &PL_compiling)	1194	if (PL_curcop != &PL_compiling)
1022	{	1195	{
1023	SV **cb;	1196	SV **cb;
1024		1197
1025	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1198	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1026	{	1199	{
1027	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1200	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1028		1201
1029	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1202	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1030	{	1203	{
…		…
1053	}	1226	}
1054		1227
1055	oldcxix = cxstack_ix;	1228	oldcxix = cxstack_ix;
1056	}	1229	}
1057		1230
1058	if (cctx->flags & CC_TRACE_LINE)	1231	if (cctx_current->flags & CC_TRACE_LINE)
1059	{	1232	{
1060	dSP;	1233	dSP;
1061		1234
1062	PL_runops = RUNOPS_DEFAULT;	1235	PL_runops = RUNOPS_DEFAULT;
1063	ENTER;	1236	ENTER;
…		…
1082		1255
1083	TAINT_NOT;	1256	TAINT_NOT;
1084	return 0;	1257	return 0;
1085	}	1258	}
1086		1259
1087	static struct coro_cctx *cctx_ssl_cctx;
1088	static struct CoroSLF cctx_ssl_frame;	1260	static struct CoroSLF cctx_ssl_frame;
1089		1261
1090	static void	1262	static void
1091	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1263	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1092	{	1264	{
1093	ta->prev = (struct coro *)cctx_ssl_cctx;
1094	ta->next = 0;	1265	ta->prev = 0;
1095	}	1266	}
1096		1267
1097	static int	1268	static int
1098	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1269	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1099	{	1270	{
…		…
1102	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1273	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1103	}	1274	}
1104		1275
1105	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1276	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1106	static void NOINLINE	1277	static void NOINLINE
1107	cctx_prepare (pTHX_ coro_cctx *cctx)	1278	cctx_prepare (pTHX)
1108	{	1279	{
1109	PL_top_env = &PL_start_env;	1280	PL_top_env = &PL_start_env;
1110		1281
1111	if (cctx->flags & CC_TRACE)	1282	if (cctx_current->flags & CC_TRACE)
1112	PL_runops = runops_trace;	1283	PL_runops = runops_trace;
1113		1284
1114	/* we already must be executing an SLF op, there is no other valid way	1285	/* we already must be executing an SLF op, there is no other valid way
1115	* that can lead to creation of a new cctx */	1286	* that can lead to creation of a new cctx */
1116	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1287	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1117	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1288	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1118		1289
1119	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1290	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1120	cctx_ssl_cctx = cctx;
1121	cctx_ssl_frame = slf_frame;	1291	cctx_ssl_frame = slf_frame;
1122		1292
1123	slf_frame.prepare = slf_prepare_set_stacklevel;	1293	slf_frame.prepare = slf_prepare_set_stacklevel;
1124	slf_frame.check = slf_check_set_stacklevel;	1294	slf_frame.check = slf_check_set_stacklevel;
1125	}	1295	}
…		…
1148	/* normally we would need to skip the entersub here */	1318	/* normally we would need to skip the entersub here */
1149	/* not doing so will re-execute it, which is exactly what we want */	1319	/* not doing so will re-execute it, which is exactly what we want */
1150	/* PL_nop = PL_nop->op_next */	1320	/* PL_nop = PL_nop->op_next */
1151		1321
1152	/* inject a fake subroutine call to cctx_init */	1322	/* inject a fake subroutine call to cctx_init */
1153	cctx_prepare (aTHX_ (coro_cctx *)arg);	1323	cctx_prepare (aTHX);
1154		1324
1155	/* cctx_run is the alternative tail of transfer() */	1325	/* cctx_run is the alternative tail of transfer() */
1156	transfer_tail (aTHX);	1326	transfer_tail (aTHX);
1157		1327
1158	/* somebody or something will hit me for both perl_run and PL_restartop */	1328	/* somebody or something will hit me for both perl_run and PL_restartop */
…		…
1166	/*	1336	/*
1167	* If perl-run returns we assume exit() was being called or the coro	1337	* If perl-run returns we assume exit() was being called or the coro
1168	* fell off the end, which seems to be the only valid (non-bug)	1338	* fell off the end, which seems to be the only valid (non-bug)
1169	* reason for perl_run to return. We try to exit by jumping to the	1339	* reason for perl_run to return. We try to exit by jumping to the
1170	* bootstrap-time "top" top_env, as we cannot restore the "main"	1340	* bootstrap-time "top" top_env, as we cannot restore the "main"
1171	* coroutine as Coro has no such concept	1341	* coroutine as Coro has no such concept.
		1342	* This actually isn't valid with the pthread backend, but OSes requiring
		1343	* that backend are too broken to do it in a standards-compliant way.
1172	*/	1344	*/
1173	PL_top_env = main_top_env;	1345	PL_top_env = main_top_env;
1174	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1346	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1175	}	1347	}
1176	}	1348	}
…		…
1253	cctx_destroy (coro_cctx *cctx)	1425	cctx_destroy (coro_cctx *cctx)
1254	{	1426	{
1255	if (!cctx)	1427	if (!cctx)
1256	return;	1428	return;
1257		1429
		1430	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
		1431
1258	--cctx_count;	1432	--cctx_count;
1259	coro_destroy (&cctx->cctx);	1433	coro_destroy (&cctx->cctx);
1260		1434
1261	/* coro_transfer creates new, empty cctx's */	1435	/* coro_transfer creates new, empty cctx's */
1262	if (cctx->sptr)	1436	if (cctx->sptr)
…		…
1325	/* TODO: throwing up here is considered harmful */	1499	/* TODO: throwing up here is considered harmful */
1326		1500
1327	if (expect_true (prev != next))	1501	if (expect_true (prev != next))
1328	{	1502	{
1329	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1503	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1330	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");	1504	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1331		1505
1332	if (expect_false (next->flags & CF_RUNNING))
1333	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1334
1335	if (expect_false (next->flags & CF_DESTROYED))	1506	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1336	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1507	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1337		1508
1338	#if !PERL_VERSION_ATLEAST (5,10,0)	1509	#if !PERL_VERSION_ATLEAST (5,10,0)
1339	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1510	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1340	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1511	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1341	#endif	1512	#endif
…		…
1347	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1518	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1348	{	1519	{
1349	dSTACKLEVEL;	1520	dSTACKLEVEL;
1350		1521
1351	/* sometimes transfer is only called to set idle_sp */	1522	/* sometimes transfer is only called to set idle_sp */
1352	if (expect_false (!next))	1523	if (expect_false (!prev))
1353	{	1524	{
1354	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1525	cctx_current->idle_sp = STACKLEVEL;
1355	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1526	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1356	}	1527	}
1357	else if (expect_true (prev != next))	1528	else if (expect_true (prev != next))
1358	{	1529	{
1359	coro_cctx *prev__cctx;	1530	coro_cctx *cctx_prev;
1360		1531
1361	if (expect_false (prev->flags & CF_NEW))	1532	if (expect_false (prev->flags & CF_NEW))
1362	{	1533	{
1363	/* create a new empty/source context */	1534	/* create a new empty/source context */
1364	prev->cctx = cctx_new_empty ();
1365	prev->flags &= ~CF_NEW;	1535	prev->flags &= ~CF_NEW;
1366	prev->flags |= CF_RUNNING;	1536	prev->flags |= CF_RUNNING;
1367	}	1537	}
1368		1538
1369	prev->flags &= ~CF_RUNNING;	1539	prev->flags &= ~CF_RUNNING;
…		…
1380	coro_setup (aTHX_ next);	1550	coro_setup (aTHX_ next);
1381	}	1551	}
1382	else	1552	else
1383	load_perl (aTHX_ next);	1553	load_perl (aTHX_ next);
1384		1554
1385	prev__cctx = prev->cctx;
1386
1387	/* possibly untie and reuse the cctx */	1555	/* possibly untie and reuse the cctx */
1388	if (expect_true (	1556	if (expect_true (
1389	prev__cctx->idle_sp == STACKLEVEL	1557	cctx_current->idle_sp == STACKLEVEL
1390	&& !(prev__cctx->flags & CC_TRACE)	1558	&& !(cctx_current->flags & CC_TRACE)
1391	&& !force_cctx	1559	&& !force_cctx
1392	))	1560	))
1393	{	1561	{
1394	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1562	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1395	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1563	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1396		1564
1397	prev->cctx = 0;
1398
1399	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1565	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1400	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1566	/* without this the next cctx_get might destroy the running cctx while still in use */
1401	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1567	if (expect_false (CCTX_EXPIRED (cctx_current)))
1402	if (!next->cctx)	1568	if (expect_true (!next->cctx))
1403	next->cctx = cctx_get (aTHX);	1569	next->cctx = cctx_get (aTHX);
1404		1570
1405	cctx_put (prev__cctx);	1571	cctx_put (cctx_current);
1406	}	1572	}
		1573	else
		1574	prev->cctx = cctx_current;
1407		1575
1408	++next->usecount;	1576	++next->usecount;
1409		1577
1410	if (expect_true (!next->cctx))	1578	cctx_prev = cctx_current;
1411	next->cctx = cctx_get (aTHX);	1579	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1412		1580
1413	if (expect_false (prev__cctx != next->cctx))	1581	next->cctx = 0;
		1582
		1583	if (expect_false (cctx_prev != cctx_current))
1414	{	1584	{
1415	prev__cctx->top_env = PL_top_env;	1585	cctx_prev->top_env = PL_top_env;
1416	PL_top_env = next->cctx->top_env;	1586	PL_top_env = cctx_current->top_env;
1417	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1587	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1418	}	1588	}
1419		1589
1420	transfer_tail (aTHX);	1590	transfer_tail (aTHX);
1421	}	1591	}
1422	}	1592	}
…		…
1430	coro_state_destroy (pTHX_ struct coro *coro)	1600	coro_state_destroy (pTHX_ struct coro *coro)
1431	{	1601	{
1432	if (coro->flags & CF_DESTROYED)	1602	if (coro->flags & CF_DESTROYED)
1433	return 0;	1603	return 0;
1434		1604
1435	if (coro->on_destroy)	1605	if (coro->on_destroy && !PL_dirty)
1436	coro->on_destroy (aTHX_ coro);	1606	coro->on_destroy (aTHX_ coro);
1437		1607
1438	coro->flags |= CF_DESTROYED;	1608	coro->flags |= CF_DESTROYED;
1439		1609
1440	if (coro->flags & CF_READY)	1610	if (coro->flags & CF_READY)
…		…
1444	--coro_nready;	1614	--coro_nready;
1445	}	1615	}
1446	else	1616	else
1447	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1617	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1448		1618
1449	if (coro->mainstack && coro->mainstack != main_mainstack)	1619	if (coro->mainstack
1450	{	1620	&& coro->mainstack != main_mainstack
1451	struct coro temp;	1621	&& coro->slot
1452		1622	&& !PL_dirty)
1453	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1454
1455	save_perl (aTHX_ &temp);
1456	load_perl (aTHX_ coro);
1457
1458	coro_destruct (aTHX_ coro);	1623	coro_destruct_perl (aTHX_ coro);
1459
1460	load_perl (aTHX_ &temp);
1461
1462	coro->slot = 0;
1463	}
1464		1624
1465	cctx_destroy (coro->cctx);	1625	cctx_destroy (coro->cctx);
1466	SvREFCNT_dec (coro->startcv);	1626	SvREFCNT_dec (coro->startcv);
1467	SvREFCNT_dec (coro->args);	1627	SvREFCNT_dec (coro->args);
1468	SvREFCNT_dec (CORO_THROW);	1628	SvREFCNT_dec (CORO_THROW);
…		…
1555	/** Coro ********************************************************************/	1715	/** Coro ********************************************************************/
1556		1716
1557	INLINE void	1717	INLINE void
1558	coro_enq (pTHX_ struct coro *coro)	1718	coro_enq (pTHX_ struct coro *coro)
1559	{	1719	{
1560	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1720	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1561	}
1562		1721
1563	INLINE SV *	1722	SvREFCNT_inc_NN (coro->hv);
		1723
		1724	coro->next_ready = 0;
		1725	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1726	ready [1] = coro;
		1727	}
		1728
		1729	INLINE struct coro *
1564	coro_deq (pTHX)	1730	coro_deq (pTHX)
1565	{	1731	{
1566	int prio;	1732	int prio;
1567		1733
1568	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1734	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1569	if (AvFILLp (coro_ready [prio]) >= 0)	1735	{
1570	return av_shift (coro_ready [prio]);	1736	struct coro **ready = coro_ready [prio];
		1737
		1738	if (ready [0])
		1739	{
		1740	struct coro *coro = ready [0];
		1741	ready [0] = coro->next_ready;
		1742	return coro;
		1743	}
		1744	}
1571		1745
1572	return 0;	1746	return 0;
1573	}	1747	}
1574		1748
1575	static int	1749	static int
…		…
1577	{	1751	{
1578	struct coro *coro;	1752	struct coro *coro;
1579	SV *sv_hook;	1753	SV *sv_hook;
1580	void (*xs_hook)(void);	1754	void (*xs_hook)(void);
1581		1755
1582	if (SvROK (coro_sv))
1583	coro_sv = SvRV (coro_sv);
1584
1585	coro = SvSTATE (coro_sv);	1756	coro = SvSTATE (coro_sv);
1586		1757
1587	if (coro->flags & CF_READY)	1758	if (coro->flags & CF_READY)
1588	return 0;	1759	return 0;
1589		1760
…		…
1642	static void	1813	static void
1643	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1814	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1644	{	1815	{
1645	for (;;)	1816	for (;;)
1646	{	1817	{
1647	SV *next_sv = coro_deq (aTHX);	1818	struct coro *next = coro_deq (aTHX);
1648		1819
1649	if (expect_true (next_sv))	1820	if (expect_true (next))
1650	{	1821	{
1651	struct coro *next = SvSTATE_hv (next_sv);
1652
1653	/* cannot transfer to destroyed coros, skip and look for next */	1822	/* cannot transfer to destroyed coros, skip and look for next */
1654	if (expect_false (next->flags & CF_DESTROYED))	1823	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1655	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1824	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1656	else	1825	else
1657	{	1826	{
1658	next->flags &= ~CF_READY;	1827	next->flags &= ~CF_READY;
1659	--coro_nready;	1828	--coro_nready;
1660		1829
…		…
1663	}	1832	}
1664	}	1833	}
1665	else	1834	else
1666	{	1835	{
1667	/* nothing to schedule: call the idle handler */	1836	/* nothing to schedule: call the idle handler */
		1837	if (SvROK (sv_idle)
		1838	&& SvOBJECT (SvRV (sv_idle)))
		1839	{
		1840	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1841	api_ready (aTHX_ SvRV (sv_idle));
		1842	--coro_nready;
		1843	}
		1844	else
		1845	{
1668	dSP;	1846	dSP;
1669		1847
1670	ENTER;	1848	ENTER;
1671	SAVETMPS;	1849	SAVETMPS;
1672		1850
1673	PUSHMARK (SP);	1851	PUSHMARK (SP);
1674	PUTBACK;	1852	PUTBACK;
1675	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);	1853	call_sv (sv_idle, G_VOID | G_DISCARD);
1676		1854
1677	FREETMPS;	1855	FREETMPS;
1678	LEAVE;	1856	LEAVE;
		1857	}
1679	}	1858	}
1680	}	1859	}
1681	}	1860	}
1682		1861
1683	INLINE void	1862	INLINE void
…		…
1754	static void	1933	static void
1755	api_trace (pTHX_ SV *coro_sv, int flags)	1934	api_trace (pTHX_ SV *coro_sv, int flags)
1756	{	1935	{
1757	struct coro *coro = SvSTATE (coro_sv);	1936	struct coro *coro = SvSTATE (coro_sv);
1758		1937
		1938	if (coro->flags & CF_RUNNING)
		1939	croak ("cannot enable tracing on a running coroutine, caught");
		1940
1759	if (flags & CC_TRACE)	1941	if (flags & CC_TRACE)
1760	{	1942	{
1761	if (!coro->cctx)	1943	if (!coro->cctx)
1762	coro->cctx = cctx_new_run ();	1944	coro->cctx = cctx_new_run ();
1763	else if (!(coro->cctx->flags & CC_TRACE))	1945	else if (!(coro->cctx->flags & CC_TRACE))
1764	croak ("cannot enable tracing on coroutine with custom stack,");	1946	croak ("cannot enable tracing on coroutine with custom stack, caught");
1765		1947
1766	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1948	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1767	}	1949	}
1768	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1950	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1769	{	1951	{
…		…
1825	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	2007	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1826	api_ready (aTHX_ sv_manager);	2008	api_ready (aTHX_ sv_manager);
1827		2009
1828	frame->prepare = prepare_schedule;	2010	frame->prepare = prepare_schedule;
1829	frame->check = slf_check_repeat;	2011	frame->check = slf_check_repeat;
		2012
		2013	/* as a minor optimisation, we could unwind all stacks here */
		2014	/* but that puts extra pressure on pp_slf, and is not worth much */
		2015	/*coro_unwind_stacks (aTHX);*/
1830	}	2016	}
1831		2017
1832	/*****************************************************************************/	2018	/*****************************************************************************/
1833	/* async pool handler */	2019	/* async pool handler */
1834		2020
…		…
1917	SV *data = (SV *)GENSUB_ARG;	2103	SV *data = (SV *)GENSUB_ARG;
1918		2104
1919	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2105	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1920	{	2106	{
1921	/* first call, set args */	2107	/* first call, set args */
		2108	SV *coro = SvRV (data);
1922	AV *av = newAV ();	2109	AV *av = newAV ();
1923	SV *coro = SvRV (data);
1924		2110
1925	SvRV_set (data, (SV *)av);	2111	SvRV_set (data, (SV *)av);
1926	api_ready (aTHX_ coro);
1927	SvREFCNT_dec (coro);
1928		2112
1929	/* better take a full copy of the arguments */	2113	/* better take a full copy of the arguments */
1930	while (items--)	2114	while (items--)
1931	av_store (av, items, newSVsv (ST (items)));	2115	av_store (av, items, newSVsv (ST (items)));
		2116
		2117	api_ready (aTHX_ coro);
		2118	SvREFCNT_dec (coro);
1932	}	2119	}
1933		2120
1934	XSRETURN_EMPTY;	2121	XSRETURN_EMPTY;
1935	}	2122	}
1936		2123
…		…
1953		2140
1954	EXTEND (SP, AvFILLp (av) + 1);	2141	EXTEND (SP, AvFILLp (av) + 1);
1955	for (i = 0; i <= AvFILLp (av); ++i)	2142	for (i = 0; i <= AvFILLp (av); ++i)
1956	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2143	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1957		2144
1958	/* we have stolen the elements, so ste length to zero and free */	2145	/* we have stolen the elements, so set length to zero and free */
1959	AvFILLp (av) = -1;	2146	AvFILLp (av) = -1;
1960	av_undef (av);	2147	av_undef (av);
1961		2148
1962	PUTBACK;	2149	PUTBACK;
1963	}	2150	}
…		…
2253		2440
2254	PL_op->op_ppaddr = pp_slf;	2441	PL_op->op_ppaddr = pp_slf;
2255	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2442	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2256		2443
2257	PL_op = (OP *)&slf_restore;	2444	PL_op = (OP *)&slf_restore;
		2445	}
		2446
		2447	/*****************************************************************************/
		2448	/* dynamic wind */
		2449
		2450	static void
		2451	on_enterleave_call (pTHX_ SV *cb)
		2452	{
		2453	dSP;
		2454
		2455	PUSHSTACK;
		2456
		2457	PUSHMARK (SP);
		2458	PUTBACK;
		2459	call_sv (cb, G_VOID | G_DISCARD);
		2460	SPAGAIN;
		2461
		2462	POPSTACK;
		2463	}
		2464
		2465	static SV *
		2466	coro_avp_pop_and_free (pTHX_ AV **avp)
		2467	{
		2468	AV *av = *avp;
		2469	SV *res = av_pop (av);
		2470
		2471	if (AvFILLp (av) < 0)
		2472	{
		2473	*avp = 0;
		2474	SvREFCNT_dec (av);
		2475	}
		2476
		2477	return res;
		2478	}
		2479
		2480	static void
		2481	coro_pop_on_enter (pTHX_ void *coro)
		2482	{
		2483	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2484	SvREFCNT_dec (cb);
		2485	}
		2486
		2487	static void
		2488	coro_pop_on_leave (pTHX_ void *coro)
		2489	{
		2490	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2491	on_enterleave_call (aTHX_ sv_2mortal (cb));
2258	}	2492	}
2259		2493
2260	/*****************************************************************************/	2494	/*****************************************************************************/
2261	/* PerlIO::cede */	2495	/* PerlIO::cede */
2262		2496
…		…
2336	/* Coro::Semaphore & Coro::Signal */	2570	/* Coro::Semaphore & Coro::Signal */
2337		2571
2338	static SV *	2572	static SV *
2339	coro_waitarray_new (pTHX_ int count)	2573	coro_waitarray_new (pTHX_ int count)
2340	{	2574	{
2341	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2575	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2342	AV *av = newAV ();	2576	AV *av = newAV ();
2343	SV **ary;	2577	SV **ary;
2344		2578
2345	/* unfortunately, building manually saves memory */	2579	/* unfortunately, building manually saves memory */
2346	Newx (ary, 2, SV *);	2580	Newx (ary, 2, SV *);
2347	AvALLOC (av) = ary;	2581	AvALLOC (av) = ary;
		2582	#if PERL_VERSION_ATLEAST (5,10,0)
2348	/*AvARRAY (av) = ary;*/	2583	AvARRAY (av) = ary;
		2584	#else
2349	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2585	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2586	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2587	SvPVX ((SV *)av) = (char *)ary;
		2588	#endif
2350	AvMAX (av) = 1;	2589	AvMAX (av) = 1;
2351	AvFILLp (av) = 0;	2590	AvFILLp (av) = 0;
2352	ary [0] = newSViv (count);	2591	ary [0] = newSViv (count);
2353		2592
2354	return newRV_noinc ((SV *)av);	2593	return newRV_noinc ((SV *)av);
…		…
2485	{	2724	{
2486	/* callback form */	2725	/* callback form */
2487	AV *av = (AV *)SvRV (arg [0]);	2726	AV *av = (AV *)SvRV (arg [0]);
2488	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2727	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2489		2728
2490	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2729	av_push (av, SvREFCNT_inc_NN (cb_cv));
2491		2730
2492	if (SvIVX (AvARRAY (av)[0]) > 0)	2731	if (SvIVX (AvARRAY (av)[0]) > 0)
2493	coro_semaphore_adjust (aTHX_ av, 0);	2732	coro_semaphore_adjust (aTHX_ av, 0);
2494		2733
2495	frame->prepare = prepare_nop;	2734	frame->prepare = prepare_nop;
…		…
2519	AvARRAY (av)[0] = AvARRAY (av)[1];	2758	AvARRAY (av)[0] = AvARRAY (av)[1];
2520	AvARRAY (av)[1] = cb;	2759	AvARRAY (av)[1] = cb;
2521		2760
2522	cb = av_shift (av);	2761	cb = av_shift (av);
2523		2762
		2763	if (SvTYPE (cb) == SVt_PVCV)
		2764	{
		2765	dSP;
		2766	PUSHMARK (SP);
		2767	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2768	PUTBACK;
		2769	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2770	}
		2771	else
		2772	{
2524	api_ready (aTHX_ cb);	2773	api_ready (aTHX_ cb);
2525	sv_setiv (cb, 0); /* signal waiter */	2774	sv_setiv (cb, 0); /* signal waiter */
		2775	}
		2776
2526	SvREFCNT_dec (cb);	2777	SvREFCNT_dec (cb);
2527		2778
2528	--count;	2779	--count;
2529	}	2780	}
2530	}	2781	}
…		…
2539	static void	2790	static void
2540	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2791	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2541	{	2792	{
2542	AV *av = (AV *)SvRV (arg [0]);	2793	AV *av = (AV *)SvRV (arg [0]);
2543		2794
		2795	if (items >= 2)
		2796	{
		2797	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
		2798	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2799
2544	if (SvIVX (AvARRAY (av)[0]))	2800	if (SvIVX (AvARRAY (av)[0]))
		2801	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
		2802
		2803	frame->prepare = prepare_nop;
		2804	frame->check = slf_check_nop;
		2805	}
		2806	else if (SvIVX (AvARRAY (av)[0]))
2545	{	2807	{
2546	SvIVX (AvARRAY (av)[0]) = 0;	2808	SvIVX (AvARRAY (av)[0]) = 0;
2547	frame->prepare = prepare_nop;	2809	frame->prepare = prepare_nop;
2548	frame->check = slf_check_nop;	2810	frame->check = slf_check_nop;
2549	}	2811	}
2550	else	2812	else
2551	{	2813	{
2552	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2814	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2553		2815
2554	av_push (av, waiter);	2816	av_push (av, waiter);
2555		2817
2556	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2818	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2557	frame->prepare = prepare_schedule;	2819	frame->prepare = prepare_schedule;
…		…
2724	XSRETURN_EMPTY;	2986	XSRETURN_EMPTY;
2725	}	2987	}
2726		2988
2727	/*****************************************************************************/	2989	/*****************************************************************************/
2728		2990
		2991	#if CORO_CLONE
		2992	# include "clone.c"
		2993	#endif
		2994
2729	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2995	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2730		2996
2731	PROTOTYPES: DISABLE	2997	PROTOTYPES: DISABLE
2732		2998
2733	BOOT:	2999	BOOT:
…		…
2736	# if CORO_PTHREAD	3002	# if CORO_PTHREAD
2737	coro_thx = PERL_GET_CONTEXT;	3003	coro_thx = PERL_GET_CONTEXT;
2738	# endif	3004	# endif
2739	#endif	3005	#endif
2740	BOOT_PAGESIZE;	3006	BOOT_PAGESIZE;
		3007
		3008	cctx_current = cctx_new_empty ();
2741		3009
2742	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	3010	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2743	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	3011	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2744		3012
2745	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	3013	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
…		…
2790		3058
2791	if (!svp) croak ("Time::HiRes is required");	3059	if (!svp) croak ("Time::HiRes is required");
2792	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	3060	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2793		3061
2794	nvtime = INT2PTR (double (*)(), SvIV (*svp));	3062	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		3063
		3064	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		3065	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2795	}	3066	}
2796		3067
2797	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	3068	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2798	}	3069	}
2799		3070
2800	SV *	3071	SV *
2801	new (char *klass, ...)	3072	new (char *klass, ...)
2802	ALIAS:	3073	ALIAS:
…		…
2871	void	3142	void
2872	_exit (int code)	3143	_exit (int code)
2873	PROTOTYPE: $	3144	PROTOTYPE: $
2874	CODE:	3145	CODE:
2875	_exit (code);	3146	_exit (code);
		3147
		3148	SV *
		3149	clone (Coro::State coro)
		3150	CODE:
		3151	{
		3152	#if CORO_CLONE
		3153	struct coro *ncoro = coro_clone (aTHX_ coro);
		3154	MAGIC *mg;
		3155	/* TODO: too much duplication */
		3156	ncoro->hv = newHV ();
		3157	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		3158	mg->mg_flags |= MGf_DUP;
		3159	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		3160	#else
		3161	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		3162	#endif
		3163	}
		3164	OUTPUT:
		3165	RETVAL
2876		3166
2877	int	3167	int
2878	cctx_stacksize (int new_stacksize = 0)	3168	cctx_stacksize (int new_stacksize = 0)
2879	PROTOTYPE: ;$	3169	PROTOTYPE: ;$
2880	CODE:	3170	CODE:
…		…
2930	eval = 1	3220	eval = 1
2931	CODE:	3221	CODE:
2932	{	3222	{
2933	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3223	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2934	{	3224	{
2935	struct coro temp;	3225	struct coro *current = SvSTATE_current;
2936		3226
2937	if (!(coro->flags & CF_RUNNING))	3227	if (current != coro)
2938	{	3228	{
2939	PUTBACK;	3229	PUTBACK;
2940	save_perl (aTHX_ &temp);	3230	save_perl (aTHX_ current);
2941	load_perl (aTHX_ coro);	3231	load_perl (aTHX_ coro);
		3232	SPAGAIN;
2942	}	3233	}
2943		3234
2944	{
2945	dSP;
2946	ENTER;
2947	SAVETMPS;
2948	PUTBACK;
2949	PUSHSTACK;	3235	PUSHSTACK;
		3236
2950	PUSHMARK (SP);	3237	PUSHMARK (SP);
		3238	PUTBACK;
2951		3239
2952	if (ix)	3240	if (ix)
2953	eval_sv (coderef, 0);	3241	eval_sv (coderef, 0);
2954	else	3242	else
2955	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3243	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2956		3244
2957	POPSTACK;	3245	POPSTACK;
2958	SPAGAIN;	3246	SPAGAIN;
2959	FREETMPS;
2960	LEAVE;
2961	PUTBACK;
2962	}
2963		3247
2964	if (!(coro->flags & CF_RUNNING))	3248	if (current != coro)
2965	{	3249	{
		3250	PUTBACK;
2966	save_perl (aTHX_ coro);	3251	save_perl (aTHX_ coro);
2967	load_perl (aTHX_ &temp);	3252	load_perl (aTHX_ current);
2968	SPAGAIN;	3253	SPAGAIN;
2969	}	3254	}
2970	}	3255	}
2971	}	3256	}
2972		3257
…		…
2976	ALIAS:	3261	ALIAS:
2977	is_ready = CF_READY	3262	is_ready = CF_READY
2978	is_running = CF_RUNNING	3263	is_running = CF_RUNNING
2979	is_new = CF_NEW	3264	is_new = CF_NEW
2980	is_destroyed = CF_DESTROYED	3265	is_destroyed = CF_DESTROYED
		3266	is_suspended = CF_SUSPENDED
2981	CODE:	3267	CODE:
2982	RETVAL = boolSV (coro->flags & ix);	3268	RETVAL = boolSV (coro->flags & ix);
2983	OUTPUT:	3269	OUTPUT:
2984	RETVAL	3270	RETVAL
2985		3271
…		…
2989	CODE:	3275	CODE:
2990	{	3276	{
2991	struct coro *current = SvSTATE_current;	3277	struct coro *current = SvSTATE_current;
2992	SV **throwp = self == current ? &CORO_THROW : &self->except;	3278	SV **throwp = self == current ? &CORO_THROW : &self->except;
2993	SvREFCNT_dec (*throwp);	3279	SvREFCNT_dec (*throwp);
		3280	SvGETMAGIC (throw);
2994	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3281	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2995	}	3282	}
2996		3283
2997	void	3284	void
2998	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3285	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
…		…
3001		3288
3002	SV *	3289	SV *
3003	has_cctx (Coro::State coro)	3290	has_cctx (Coro::State coro)
3004	PROTOTYPE: $	3291	PROTOTYPE: $
3005	CODE:	3292	CODE:
3006	RETVAL = boolSV (!!coro->cctx);	3293	/* maybe manage the running flag differently */
		3294	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
3007	OUTPUT:	3295	OUTPUT:
3008	RETVAL	3296	RETVAL
3009		3297
3010	int	3298	int
3011	is_traced (Coro::State coro)	3299	is_traced (Coro::State coro)
…		…
3031		3319
3032	void	3320	void
3033	force_cctx ()	3321	force_cctx ()
3034	PROTOTYPE:	3322	PROTOTYPE:
3035	CODE:	3323	CODE:
3036	SvSTATE_current->cctx->idle_sp = 0;	3324	cctx_current->idle_sp = 0;
3037		3325
3038	void	3326	void
3039	swap_defsv (Coro::State self)	3327	swap_defsv (Coro::State self)
3040	PROTOTYPE: $	3328	PROTOTYPE: $
3041	ALIAS:	3329	ALIAS:
…		…
3049	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3337	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3050		3338
3051	SV *tmp = *src; *src = *dst; *dst = tmp;	3339	SV *tmp = *src; *src = *dst; *dst = tmp;
3052	}	3340	}
3053		3341
		3342	void
		3343	cancel (Coro::State self)
		3344	CODE:
		3345	coro_state_destroy (aTHX_ self);
		3346	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3347
		3348
		3349	SV *
		3350	enable_times (int enabled = enable_times)
		3351	CODE:
		3352	{
		3353	RETVAL = boolSV (enable_times);
		3354
		3355	if (enabled != enable_times)
		3356	{
		3357	enable_times = enabled;
		3358
		3359	coro_times_update ();
		3360	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3361	}
		3362	}
		3363	OUTPUT:
		3364	RETVAL
		3365
		3366	void
		3367	times (Coro::State self)
		3368	PPCODE:
		3369	{
		3370	struct coro *current = SvSTATE (coro_current);
		3371
		3372	if (expect_false (current == self))
		3373	{
		3374	coro_times_update ();
		3375	coro_times_add (SvSTATE (coro_current));
		3376	}
		3377
		3378	EXTEND (SP, 2);
		3379	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3380	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3381
		3382	if (expect_false (current == self))
		3383	coro_times_sub (SvSTATE (coro_current));
		3384	}
3054		3385
3055	MODULE = Coro::State PACKAGE = Coro	3386	MODULE = Coro::State PACKAGE = Coro
3056		3387
3057	BOOT:	3388	BOOT:
3058	{	3389	{
3059	int i;
3060
3061	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3390	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3062	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3391	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3063	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3392	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3064	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3393	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3065	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3394	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3066	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3395	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3067	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3396	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3068	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3397	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3398	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3069		3399
3070	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3400	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3071	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3401	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3072	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3402	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3073	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3403	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
3074		3404
3075	coro_stash = gv_stashpv ("Coro", TRUE);	3405	coro_stash = gv_stashpv ("Coro", TRUE);
3076		3406
3077	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3407	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3078	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3408	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3079	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3409	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3080	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3410	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3081	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3411	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3082	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3412	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3083
3084	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3085	coro_ready[i] = newAV ();
3086		3413
3087	{	3414	{
3088	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3415	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3089		3416
3090	coroapi.schedule = api_schedule;	3417	coroapi.schedule = api_schedule;
…		…
3131	cede_notself (...)	3458	cede_notself (...)
3132	CODE:	3459	CODE:
3133	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3460	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3134		3461
3135	void	3462	void
3136	_cancel (Coro::State self)
3137	CODE:
3138	coro_state_destroy (aTHX_ self);
3139	coro_call_on_destroy (aTHX_ self);
3140
3141	void
3142	_set_current (SV *current)	3463	_set_current (SV *current)
3143	PROTOTYPE: $	3464	PROTOTYPE: $
3144	CODE:	3465	CODE:
3145	SvREFCNT_dec (SvRV (coro_current));	3466	SvREFCNT_dec (SvRV (coro_current));
3146	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));	3467	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
…		…
3148	void	3469	void
3149	_set_readyhook (SV *hook)	3470	_set_readyhook (SV *hook)
3150	PROTOTYPE: $	3471	PROTOTYPE: $
3151	CODE:	3472	CODE:
3152	SvREFCNT_dec (coro_readyhook);	3473	SvREFCNT_dec (coro_readyhook);
		3474	SvGETMAGIC (hook);
3153	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3475	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
3154		3476
3155	int	3477	int
3156	prio (Coro::State coro, int newprio = 0)	3478	prio (Coro::State coro, int newprio = 0)
3157	PROTOTYPE: $;$	3479	PROTOTYPE: $;$
…		…
3164	if (items > 1)	3486	if (items > 1)
3165	{	3487	{
3166	if (ix)	3488	if (ix)
3167	newprio = coro->prio - newprio;	3489	newprio = coro->prio - newprio;
3168		3490
3169	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3491	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3170	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3492	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3171		3493
3172	coro->prio = newprio;	3494	coro->prio = newprio;
3173	}	3495	}
3174	}	3496	}
3175	OUTPUT:	3497	OUTPUT:
…		…
3188	PROTOTYPE:	3510	PROTOTYPE:
3189	CODE:	3511	CODE:
3190	RETVAL = coro_nready;	3512	RETVAL = coro_nready;
3191	OUTPUT:	3513	OUTPUT:
3192	RETVAL	3514	RETVAL
		3515
		3516	void
		3517	suspend (Coro::State self)
		3518	PROTOTYPE: $
		3519	CODE:
		3520	self->flags |= CF_SUSPENDED;
		3521
		3522	void
		3523	resume (Coro::State self)
		3524	PROTOTYPE: $
		3525	CODE:
		3526	self->flags &= ~CF_SUSPENDED;
3193		3527
3194	void	3528	void
3195	_pool_handler (...)	3529	_pool_handler (...)
3196	CODE:	3530	CODE:
3197	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3531	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
…		…
3252	rouse_wait (...)	3586	rouse_wait (...)
3253	PROTOTYPE: ;$	3587	PROTOTYPE: ;$
3254	PPCODE:	3588	PPCODE:
3255	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3589	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3256		3590
		3591	void
		3592	on_enter (SV *block)
		3593	ALIAS:
		3594	on_leave = 1
		3595	PROTOTYPE: &
		3596	CODE:
		3597	{
		3598	struct coro *coro = SvSTATE_current;
		3599	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3600
		3601	block = (SV *)coro_sv_2cv (aTHX_ block);
		3602
		3603	if (!*avp)
		3604	*avp = newAV ();
		3605
		3606	av_push (*avp, SvREFCNT_inc (block));
		3607
		3608	if (!ix)
		3609	on_enterleave_call (aTHX_ block);
		3610
		3611	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3612	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3613	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3614	}
		3615
3257		3616
3258	MODULE = Coro::State PACKAGE = PerlIO::cede	3617	MODULE = Coro::State PACKAGE = PerlIO::cede
3259		3618
3260	BOOT:	3619	BOOT:
3261	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3620	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3264	MODULE = Coro::State PACKAGE = Coro::Semaphore	3623	MODULE = Coro::State PACKAGE = Coro::Semaphore
3265		3624
3266	SV *	3625	SV *
3267	new (SV *klass, SV *count = 0)	3626	new (SV *klass, SV *count = 0)
3268	CODE:	3627	CODE:
		3628	{
		3629	int semcnt = 1;
		3630
		3631	if (count)
		3632	{
		3633	SvGETMAGIC (count);
		3634
		3635	if (SvOK (count))
		3636	semcnt = SvIV (count);
		3637	}
		3638
3269	RETVAL = sv_bless (	3639	RETVAL = sv_bless (
3270	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3640	coro_waitarray_new (aTHX_ semcnt),
3271	GvSTASH (CvGV (cv))	3641	GvSTASH (CvGV (cv))
3272	);	3642	);
		3643	}
3273	OUTPUT:	3644	OUTPUT:
3274	RETVAL	3645	RETVAL
3275		3646
3276	# helper for Coro::Channel	3647	# helper for Coro::Channel and others
3277	SV *	3648	SV *
3278	_alloc (int count)	3649	_alloc (int count)
3279	CODE:	3650	CODE:
3280	RETVAL = coro_waitarray_new (aTHX_ count);	3651	RETVAL = coro_waitarray_new (aTHX_ count);
3281	OUTPUT:	3652	OUTPUT:
…		…
3339	for (i = 1; i <= wcount; ++i)	3710	for (i = 1; i <= wcount; ++i)
3340	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3711	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3341	}	3712	}
3342	}	3713	}
3343		3714
		3715	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3716
		3717	void
		3718	_may_delete (SV *sem, int count, int extra_refs)
		3719	PPCODE:
		3720	{
		3721	AV *av = (AV *)SvRV (sem);
		3722
		3723	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3724	&& AvFILLp (av) == 0 /* no waiters, just count */
		3725	&& SvIV (AvARRAY (av)[0]) == count)
		3726	XSRETURN_YES;
		3727
		3728	XSRETURN_NO;
		3729	}
		3730
3344	MODULE = Coro::State PACKAGE = Coro::Signal	3731	MODULE = Coro::State PACKAGE = Coro::Signal
3345		3732
3346	SV *	3733	SV *
3347	new (SV *klass)	3734	new (SV *klass)
3348	CODE:	3735	CODE:

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