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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.327 by root, Mon Nov 24 06:07:16 2008 UTC vs.
Revision 1.367 by root, Mon Aug 3 09:19:57 2009 UTC

…		…
6	#include "EXTERN.h"	6	#include "EXTERN.h"
7	#include "perl.h"	7	#include "perl.h"
8	#include "XSUB.h"	8	#include "XSUB.h"
9	#include "perliol.h"	9	#include "perliol.h"
10		10
11	#include "patchlevel.h"	11	#include "schmorp.h"
12		12
13	#include <stdio.h>	13	#include <stdio.h>
14	#include <errno.h>	14	#include <errno.h>
15	#include <assert.h>	15	#include <assert.h>
16		16
…		…
51	#endif	51	#endif
52		52
53	/* the maximum number of idle cctx that will be pooled */	53	/* the maximum number of idle cctx that will be pooled */
54	static int cctx_max_idle = 4;	54	static int cctx_max_idle = 4;
55		55
56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr
65	# endif
66	# ifndef call_sv
67	# define call_sv perl_call_sv
68	# endif
69	# ifndef get_sv
70	# define get_sv perl_get_sv
71	# endif
72	# ifndef get_cv
73	# define get_cv perl_get_cv
74	# endif
75	# ifndef IS_PADGV
76	# define IS_PADGV(v) 0
77	# endif
78	# ifndef IS_PADCONST
79	# define IS_PADCONST(v) 0
80	# endif
81	#endif
82
83	/* 5.11 */
84	#ifndef CxHASARGS
85	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86	#endif
87
88	/* 5.10.0 */
89	#ifndef SvREFCNT_inc_NN
90	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91	#endif
92
93	/* 5.8.8 */
94	#ifndef GV_NOTQUAL
95	# define GV_NOTQUAL 0
96	#endif
97	#ifndef newSV
98	# define newSV(l) NEWSV(0,l)
99	#endif
100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv
102	#endif
103	#ifndef CvISXSUB
104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105	#endif
106	#ifndef Newx
107	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108	#endif
109
110	/* 5.8.7 */
111	#ifndef SvRV_set
112	# define SvRV_set(s,v) SvRV(s) = (v)
113	#endif
114
115	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	56	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116	# undef CORO_STACKGUARD	57	# undef CORO_STACKGUARD
117	#endif	58	#endif
118		59
119	#ifndef CORO_STACKGUARD	60	#ifndef CORO_STACKGUARD
…		…
133	#else	74	#else
134	# define dSTACKLEVEL volatile void *stacklevel	75	# define dSTACKLEVEL volatile void *stacklevel
135	# define STACKLEVEL ((void *)&stacklevel)	76	# define STACKLEVEL ((void *)&stacklevel)
136	#endif	77	#endif
137		78
138	#define IN_DESTRUCT (PL_main_cv == Nullcv)	79	#define IN_DESTRUCT PL_dirty
139		80
140	#if __GNUC__ >= 3	81	#if __GNUC__ >= 3
141	# define attribute(x) __attribute__(x)	82	# define attribute(x) __attribute__(x)
142	# define expect(expr,value) __builtin_expect ((expr),(value))	83	# define expect(expr,value) __builtin_expect ((expr), (value))
143	# define INLINE static inline	84	# define INLINE static inline
144	#else	85	#else
145	# define attribute(x)	86	# define attribute(x)
146	# define expect(expr,value) (expr)	87	# define expect(expr,value) (expr)
147	# define INLINE static	88	# define INLINE static
…		…
159	# if CORO_PTHREAD	100	# if CORO_PTHREAD
160	static void *coro_thx;	101	static void *coro_thx;
161	# endif	102	# endif
162	#endif	103	#endif
163		104
		105	#ifdef __linux
		106	# include <time.h> /* for timespec */
		107	# include <syscall.h> /* for SYS_* */
		108	# ifdef SYS_clock_gettime
		109	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		110	# define CORO_CLOCK_MONOTONIC 1
		111	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
		112	# endif
		113	#endif
		114
164	static double (*nvtime)(); /* so why doesn't it take void? */	115	static double (*nvtime)(); /* so why doesn't it take void? */
		116	static void (*u2time)(pTHX_ UV ret[2]);
165		117
166	/* we hijack an hopefully unused CV flag for our purposes */	118	/* we hijack an hopefully unused CV flag for our purposes */
167	#define CVf_SLF 0x4000	119	#define CVf_SLF 0x4000
168	static OP *pp_slf (pTHX);	120	static OP *pp_slf (pTHX);
169		121
…		…
195	static CV *cv_coro_state_new;	147	static CV *cv_coro_state_new;
196		148
197	/* Coro::AnyEvent */	149	/* Coro::AnyEvent */
198	static SV *sv_activity;	150	static SV *sv_activity;
199		151
		152	/* enable processtime/realtime profiling */
		153	static char enable_times;
		154	typedef U32 coro_ts[2];
		155	static coro_ts time_real, time_cpu;
		156	static char times_valid;
		157
200	static struct coro_cctx *cctx_first;	158	static struct coro_cctx *cctx_first;
201	static int cctx_count, cctx_idle;	159	static int cctx_count, cctx_idle;
202		160
203	enum {	161	enum {
204	CC_MAPPED = 0x01,	162	CC_MAPPED = 0x01,
…		…
238	enum {	196	enum {
239	CF_RUNNING = 0x0001, /* coroutine is running */	197	CF_RUNNING = 0x0001, /* coroutine is running */
240	CF_READY = 0x0002, /* coroutine is ready */	198	CF_READY = 0x0002, /* coroutine is ready */
241	CF_NEW = 0x0004, /* has never been switched to */	199	CF_NEW = 0x0004, /* has never been switched to */
242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	200	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		201	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
243	};	202	};
244		203
245	/* the structure where most of the perl state is stored, overlaid on the cxstack */	204	/* the structure where most of the perl state is stored, overlaid on the cxstack */
246	typedef struct	205	typedef struct
247	{	206	{
…		…
260	/* this is a structure representing a perl-level coroutine */	219	/* this is a structure representing a perl-level coroutine */
261	struct coro {	220	struct coro {
262	/* the C coroutine allocated to this perl coroutine, if any */	221	/* the C coroutine allocated to this perl coroutine, if any */
263	coro_cctx *cctx;	222	coro_cctx *cctx;
264		223
		224	/* ready queue */
		225	struct coro *next_ready;
		226
265	/* state data */	227	/* state data */
266	struct CoroSLF slf_frame; /* saved slf frame */	228	struct CoroSLF slf_frame; /* saved slf frame */
267	AV *mainstack;	229	AV *mainstack;
268	perl_slots *slot; /* basically the saved sp */	230	perl_slots *slot; /* basically the saved sp */
269		231
…		…
285	/* async_pool */	247	/* async_pool */
286	SV *saved_deffh;	248	SV *saved_deffh;
287	SV *invoke_cb;	249	SV *invoke_cb;
288	AV *invoke_av;	250	AV *invoke_av;
289		251
		252	/* on_enter/on_leave */
		253	AV *on_enter;
		254	AV *on_leave;
		255
		256	/* times */
		257	coro_ts t_cpu, t_real;
		258
290	/* linked list */	259	/* linked list */
291	struct coro *next, *prev;	260	struct coro *next, *prev;
292	};	261	};
293		262
294	typedef struct coro *Coro__State;	263	typedef struct coro *Coro__State;
…		…
299	/* the mainr easonw e don't support windows process emulation */	268	/* the mainr easonw e don't support windows process emulation */
300	static struct CoroSLF slf_frame; /* the current slf frame */	269	static struct CoroSLF slf_frame; /* the current slf frame */
301		270
302	/** Coro ********************************************************************/	271	/** Coro ********************************************************************/
303		272
304	#define PRIO_MAX 3	273	#define CORO_PRIO_MAX 3
305	#define PRIO_HIGH 1	274	#define CORO_PRIO_HIGH 1
306	#define PRIO_NORMAL 0	275	#define CORO_PRIO_NORMAL 0
307	#define PRIO_LOW -1	276	#define CORO_PRIO_LOW -1
308	#define PRIO_IDLE -3	277	#define CORO_PRIO_IDLE -3
309	#define PRIO_MIN -4	278	#define CORO_PRIO_MIN -4
310		279
311	/* for Coro.pm */	280	/* for Coro.pm */
312	static SV *coro_current;	281	static SV *coro_current;
313	static SV *coro_readyhook;	282	static SV *coro_readyhook;
314	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	283	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
315	static CV *cv_coro_run, *cv_coro_terminate;	284	static CV *cv_coro_run, *cv_coro_terminate;
316	static struct coro *coro_first;	285	static struct coro *coro_first;
317	#define coro_nready coroapi.nready	286	#define coro_nready coroapi.nready
		287
		288	/** Coro::Select ************************************************************/
		289
		290	static OP *(*coro_old_pp_sselect) (pTHX);
		291	static SV *coro_select_select;
		292
		293	/* horrible hack, but if it works... */
		294	static OP *
		295	coro_pp_sselect (aTHX)
		296	{
		297	dSP;
		298	PUSHMARK (SP - 4); /* fake argument list */
		299	XPUSHs (coro_select_select);
		300	PUTBACK;
		301
		302	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
		303	PL_op->op_flags |= OPf_STACKED;
		304	PL_op->op_private = 0;
		305	return PL_ppaddr [OP_ENTERSUB](aTHX);
		306	}
318		307
319	/** lowlevel stuff **********************************************************/	308	/** lowlevel stuff **********************************************************/
320		309
321	static SV *	310	static SV *
322	coro_get_sv (pTHX_ const char *name, int create)	311	coro_get_sv (pTHX_ const char *name, int create)
…		…
346	get_hv (name, create);	335	get_hv (name, create);
347	#endif	336	#endif
348	return get_hv (name, create);	337	return get_hv (name, create);
349	}	338	}
350		339
351	/* may croak */	340	INLINE void
352	INLINE CV *	341	coro_times_update ()
353	coro_sv_2cv (pTHX_ SV *sv)
354	{	342	{
		343	#ifdef coro_clock_gettime
		344	struct timespec ts;
		345
		346	ts.tv_sec = ts.tv_nsec = 0;
		347	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		348	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
		349
		350	ts.tv_sec = ts.tv_nsec = 0;
		351	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		352	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		353	#else
		354	dTHX;
		355	UV tv[2];
		356
		357	u2time (aTHX_ tv);
		358	time_real [0] = tv [0];
		359	time_real [1] = tv [1] * 1000;
		360	#endif
		361	}
		362
		363	INLINE void
		364	coro_times_add (struct coro *c)
		365	{
		366	c->t_real [1] += time_real [1];
		367	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		368	c->t_real [0] += time_real [0];
		369
		370	c->t_cpu [1] += time_cpu [1];
		371	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		372	c->t_cpu [0] += time_cpu [0];
		373	}
		374
		375	INLINE void
		376	coro_times_sub (struct coro *c)
		377	{
		378	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		379	c->t_real [1] -= time_real [1];
		380	c->t_real [0] -= time_real [0];
		381
		382	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		383	c->t_cpu [1] -= time_cpu [1];
		384	c->t_cpu [0] -= time_cpu [0];
		385	}
		386
		387	/*****************************************************************************/
		388	/* magic glue */
		389
		390	#define CORO_MAGIC_type_cv 26
		391	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		392
		393	#define CORO_MAGIC_NN(sv, type) \
		394	(expect_true (SvMAGIC (sv)->mg_type == type) \
		395	? SvMAGIC (sv) \
		396	: mg_find (sv, type))
		397
		398	#define CORO_MAGIC(sv, type) \
		399	(expect_true (SvMAGIC (sv)) \
		400	? CORO_MAGIC_NN (sv, type) \
		401	: 0)
		402
		403	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		404	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		405
		406	INLINE struct coro *
		407	SvSTATE_ (pTHX_ SV *coro)
		408	{
355	HV *st;	409	HV *stash;
356	GV *gvp;	410	MAGIC *mg;
357	return sv_2cv (sv, &st, &gvp, 0);	411
		412	if (SvROK (coro))
		413	coro = SvRV (coro);
		414
		415	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		416	croak ("Coro::State object required");
		417
		418	stash = SvSTASH (coro);
		419	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		420	{
		421	/* very slow, but rare, check */
		422	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		423	croak ("Coro::State object required");
		424	}
		425
		426	mg = CORO_MAGIC_state (coro);
		427	return (struct coro *)mg->mg_ptr;
358	}	428	}
		429
		430	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		431
		432	/* faster than SvSTATE, but expects a coroutine hv */
		433	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		434	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		435
		436	/*****************************************************************************/
		437	/* padlist management and caching */
359		438
360	static AV *	439	static AV *
361	coro_derive_padlist (pTHX_ CV *cv)	440	coro_derive_padlist (pTHX_ CV *cv)
362	{	441	{
363	AV *padlist = CvPADLIST (cv);	442	AV *padlist = CvPADLIST (cv);
…		…
371	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	450	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
372	#endif	451	#endif
373	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	452	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
374	--AvFILLp (padlist);	453	--AvFILLp (padlist);
375		454
376	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	455	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
377	av_store (newpadlist, 1, (SV *)newpad);	456	av_store (newpadlist, 1, (SV *)newpad);
378		457
379	return newpadlist;	458	return newpadlist;
380	}	459	}
381		460
382	static void	461	static void
383	free_padlist (pTHX_ AV *padlist)	462	free_padlist (pTHX_ AV *padlist)
384	{	463	{
385	/* may be during global destruction */	464	/* may be during global destruction */
386	if (SvREFCNT (padlist))	465	if (!IN_DESTRUCT)
387	{	466	{
388	I32 i = AvFILLp (padlist);	467	I32 i = AvFILLp (padlist);
389	while (i >= 0)	468
		469	while (i > 0) /* special-case index 0 */
390	{	470	{
391	SV **svp = av_fetch (padlist, i--, FALSE);	471	/* we try to be extra-careful here */
392	if (svp)	472	AV *av = (AV *)AvARRAY (padlist)[i--];
393	{	473	I32 j = AvFILLp (av);
394	SV *sv;	474
395	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	475	while (j >= 0)
		476	SvREFCNT_dec (AvARRAY (av)[j--]);
		477
		478	AvFILLp (av) = -1;
396	SvREFCNT_dec (sv);	479	SvREFCNT_dec (av);
397
398	SvREFCNT_dec (*svp);
399	}
400	}	480	}
401		481
		482	SvREFCNT_dec (AvARRAY (padlist)[0]);
		483
		484	AvFILLp (padlist) = -1;
402	SvREFCNT_dec ((SV*)padlist);	485	SvREFCNT_dec ((SV*)padlist);
403	}	486	}
404	}	487	}
405		488
406	static int	489	static int
407	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	490	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
408	{	491	{
409	AV *padlist;	492	AV *padlist;
410	AV *av = (AV *)mg->mg_obj;	493	AV *av = (AV *)mg->mg_obj;
		494
		495	/* perl manages to free our internal AV and _then_ call us */
		496	if (IN_DESTRUCT)
		497	return 0;
411		498
412	/* casting is fun. */	499	/* casting is fun. */
413	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	500	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
414	free_padlist (aTHX_ padlist);	501	free_padlist (aTHX_ padlist);
415		502
416	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	503	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
417		504
418	return 0;	505	return 0;
419	}	506	}
420
421	#define CORO_MAGIC_type_cv 26
422	#define CORO_MAGIC_type_state PERL_MAGIC_ext
423		507
424	static MGVTBL coro_cv_vtbl = {	508	static MGVTBL coro_cv_vtbl = {
425	0, 0, 0, 0,	509	0, 0, 0, 0,
426	coro_cv_free	510	coro_cv_free
427	};	511	};
428
429	#define CORO_MAGIC_NN(sv, type) \
430	(expect_true (SvMAGIC (sv)->mg_type == type) \
431	? SvMAGIC (sv) \
432	: mg_find (sv, type))
433
434	#define CORO_MAGIC(sv, type) \
435	(expect_true (SvMAGIC (sv)) \
436	? CORO_MAGIC_NN (sv, type) \
437	: 0)
438
439	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
440	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
441
442	INLINE struct coro *
443	SvSTATE_ (pTHX_ SV *coro)
444	{
445	HV *stash;
446	MAGIC *mg;
447
448	if (SvROK (coro))
449	coro = SvRV (coro);
450
451	if (expect_false (SvTYPE (coro) != SVt_PVHV))
452	croak ("Coro::State object required");
453
454	stash = SvSTASH (coro);
455	if (expect_false (stash != coro_stash && stash != coro_state_stash))
456	{
457	/* very slow, but rare, check */
458	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
459	croak ("Coro::State object required");
460	}
461
462	mg = CORO_MAGIC_state (coro);
463	return (struct coro *)mg->mg_ptr;
464	}
465
466	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
467
468	/* faster than SvSTATE, but expects a coroutine hv */
469	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
470	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
471		512
472	/* the next two functions merely cache the padlists */	513	/* the next two functions merely cache the padlists */
473	static void	514	static void
474	get_padlist (pTHX_ CV *cv)	515	get_padlist (pTHX_ CV *cv)
475	{	516	{
…		…
503	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	544	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
504		545
505	av = (AV *)mg->mg_obj;	546	av = (AV *)mg->mg_obj;
506		547
507	if (expect_false (AvFILLp (av) >= AvMAX (av)))	548	if (expect_false (AvFILLp (av) >= AvMAX (av)))
508	av_extend (av, AvMAX (av) + 1);	549	av_extend (av, AvFILLp (av) + 1);
509		550
510	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	551	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
511	}	552	}
512		553
513	/** load & save, init *******************************************************/	554	/** load & save, init *******************************************************/
		555
		556	static void
		557	on_enterleave_call (pTHX_ SV *cb);
514		558
515	static void	559	static void
516	load_perl (pTHX_ Coro__State c)	560	load_perl (pTHX_ Coro__State c)
517	{	561	{
518	perl_slots *slot = c->slot;	562	perl_slots *slot = c->slot;
…		…
546	PUTBACK;	590	PUTBACK;
547	}	591	}
548		592
549	slf_frame = c->slf_frame;	593	slf_frame = c->slf_frame;
550	CORO_THROW = c->except;	594	CORO_THROW = c->except;
		595
		596	if (expect_false (enable_times))
		597	{
		598	if (expect_false (!times_valid))
		599	coro_times_update ();
		600
		601	coro_times_sub (c);
		602	}
		603
		604	if (expect_false (c->on_enter))
		605	{
		606	int i;
		607
		608	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		609	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		610	}
551	}	611	}
552		612
553	static void	613	static void
554	save_perl (pTHX_ Coro__State c)	614	save_perl (pTHX_ Coro__State c)
555	{	615	{
		616	if (expect_false (c->on_leave))
		617	{
		618	int i;
		619
		620	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		621	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		622	}
		623
		624	times_valid = 0;
		625
		626	if (expect_false (enable_times))
		627	{
		628	coro_times_update (); times_valid = 1;
		629	coro_times_add (c);
		630	}
		631
556	c->except = CORO_THROW;	632	c->except = CORO_THROW;
557	c->slf_frame = slf_frame;	633	c->slf_frame = slf_frame;
558		634
559	{	635	{
560	dSP;	636	dSP;
…		…
573	{	649	{
574	while (expect_true (cxix >= 0))	650	while (expect_true (cxix >= 0))
575	{	651	{
576	PERL_CONTEXT *cx = &ccstk[cxix--];	652	PERL_CONTEXT *cx = &ccstk[cxix--];
577		653
578	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))	654	if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
579	{	655	{
580	CV *cv = cx->blk_sub.cv;	656	CV *cv = cx->blk_sub.cv;
581		657
582	if (expect_true (CvDEPTH (cv)))	658	if (expect_true (CvDEPTH (cv)))
583	{	659	{
…		…
607	/* we manually unroll here, as usually 2 slots is enough */	683	/* we manually unroll here, as usually 2 slots is enough */
608	if (SLOT_COUNT >= 1) CXINC;	684	if (SLOT_COUNT >= 1) CXINC;
609	if (SLOT_COUNT >= 2) CXINC;	685	if (SLOT_COUNT >= 2) CXINC;
610	if (SLOT_COUNT >= 3) CXINC;	686	if (SLOT_COUNT >= 3) CXINC;
611	{	687	{
612	int i;	688	unsigned int i;
613	for (i = 3; i < SLOT_COUNT; ++i)	689	for (i = 3; i < SLOT_COUNT; ++i)
614	CXINC;	690	CXINC;
615	}	691	}
616	cxstack_ix -= SLOT_COUNT; /* undo allocation */	692	cxstack_ix -= SLOT_COUNT; /* undo allocation */
617		693
…		…
759	#endif	835	#endif
760		836
761	/*	837	/*
762	* This overrides the default magic get method of %SIG elements.	838	* This overrides the default magic get method of %SIG elements.
763	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	839	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
764	* and instead of tryign to save and restore the hash elements, we just provide	840	* and instead of trying to save and restore the hash elements, we just provide
765	* readback here.	841	* readback here.
766	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
767	* not expecting this to actually change the hook. This is a potential problem
768	* when a schedule happens then, but we ignore this.
769	*/	842	*/
770	static int	843	static int
771	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	844	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
772	{	845	{
773	const char *s = MgPV_nolen_const (mg);	846	const char *s = MgPV_nolen_const (mg);
…		…
826	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	899	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
827		900
828	if (svp)	901	if (svp)
829	{	902	{
830	SV *old = *svp;	903	SV *old = *svp;
831	*svp = newSVsv (sv);	904	*svp = SvOK (sv) ? newSVsv (sv) : 0;
832	SvREFCNT_dec (old);	905	SvREFCNT_dec (old);
833	return 0;	906	return 0;
834	}	907	}
835	}	908	}
836		909
…		…
925		998
926	PL_op = (OP *)&coro_setup_op;	999	PL_op = (OP *)&coro_setup_op;
927		1000
928	/* copy throw, in case it was set before coro_setup */	1001	/* copy throw, in case it was set before coro_setup */
929	CORO_THROW = coro->except;	1002	CORO_THROW = coro->except;
930	}
931		1003
		1004	if (expect_false (enable_times))
		1005	{
		1006	coro_times_update ();
		1007	coro_times_sub (coro);
		1008	}
		1009	}
		1010
932	static void	1011	static void
933	coro_destruct (pTHX_ struct coro *coro)	1012	coro_unwind_stacks (pTHX)
934	{	1013	{
935	if (!IN_DESTRUCT)	1014	if (!IN_DESTRUCT)
936	{	1015	{
937	/* restore all saved variables and stuff */	1016	/* restore all saved variables and stuff */
938	LEAVE_SCOPE (0);	1017	LEAVE_SCOPE (0);
…		…
946	POPSTACK_TO (PL_mainstack);	1025	POPSTACK_TO (PL_mainstack);
947		1026
948	/* unwind main stack */	1027	/* unwind main stack */
949	dounwind (-1);	1028	dounwind (-1);
950	}	1029	}
		1030	}
951		1031
952	SvREFCNT_dec (GvSV (PL_defgv));	1032	static void
953	SvREFCNT_dec (GvAV (PL_defgv));	1033	coro_destruct_perl (pTHX_ struct coro *coro)
954	SvREFCNT_dec (GvSV (PL_errgv));	1034	{
955	SvREFCNT_dec (PL_defoutgv);	1035	SV *svf [9];
956	SvREFCNT_dec (PL_rs);
957	SvREFCNT_dec (GvSV (irsgv));
958	SvREFCNT_dec (GvHV (PL_hintgv));
959		1036
960	SvREFCNT_dec (PL_diehook);
961	SvREFCNT_dec (PL_warnhook);
962		1037	{
		1038	struct coro *current = SvSTATE_current;
		1039
		1040	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1041
		1042	save_perl (aTHX_ current);
		1043	load_perl (aTHX_ coro);
		1044
		1045	coro_unwind_stacks (aTHX);
		1046	coro_destruct_stacks (aTHX);
		1047
		1048	// now save some sv's to be free'd later
		1049	svf [0] = GvSV (PL_defgv);
		1050	svf [1] = (SV *)GvAV (PL_defgv);
		1051	svf [2] = GvSV (PL_errgv);
		1052	svf [3] = (SV *)PL_defoutgv;
		1053	svf [4] = PL_rs;
		1054	svf [5] = GvSV (irsgv);
		1055	svf [6] = (SV *)GvHV (PL_hintgv);
		1056	svf [7] = PL_diehook;
		1057	svf [8] = PL_warnhook;
		1058	assert (9 == sizeof (svf) / sizeof (*svf));
		1059
		1060	load_perl (aTHX_ current);
		1061	}
		1062
		1063	{
		1064	unsigned int i;
		1065
		1066	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1067	SvREFCNT_dec (svf [i]);
		1068
963	SvREFCNT_dec (coro->saved_deffh);	1069	SvREFCNT_dec (coro->saved_deffh);
964	SvREFCNT_dec (coro->rouse_cb);	1070	SvREFCNT_dec (coro->rouse_cb);
965	SvREFCNT_dec (coro->invoke_cb);	1071	SvREFCNT_dec (coro->invoke_cb);
966	SvREFCNT_dec (coro->invoke_av);	1072	SvREFCNT_dec (coro->invoke_av);
967		1073	}
968	coro_destruct_stacks (aTHX);
969	}	1074	}
970		1075
971	INLINE void	1076	INLINE void
972	free_coro_mortal (pTHX)	1077	free_coro_mortal (pTHX)
973	{	1078	{
…		…
1170	/* somebody or something will hit me for both perl_run and PL_restartop */	1275	/* somebody or something will hit me for both perl_run and PL_restartop */
1171	PL_restartop = PL_op;	1276	PL_restartop = PL_op;
1172	perl_run (PL_curinterp);	1277	perl_run (PL_curinterp);
1173	/*	1278	/*
1174	* Unfortunately, there is no way to get at the return values of the	1279	* Unfortunately, there is no way to get at the return values of the
1175	* coro body here, as perl_run destroys these	1280	* coro body here, as perl_run destroys these. Likewise, we cannot catch
		1281	* runtime errors here, as this is just a random interpreter, not a thread.
1176	*/	1282	*/
1177		1283
1178	/*	1284	/*
1179	* If perl-run returns we assume exit() was being called or the coro	1285	* If perl-run returns we assume exit() was being called or the coro
1180	* fell off the end, which seems to be the only valid (non-bug)	1286	* fell off the end, which seems to be the only valid (non-bug)
1181	* reason for perl_run to return. We try to exit by jumping to the	1287	* reason for perl_run to return. We try to exit by jumping to the
1182	* bootstrap-time "top" top_env, as we cannot restore the "main"	1288	* bootstrap-time "top" top_env, as we cannot restore the "main"
1183	* coroutine as Coro has no such concept	1289	* coroutine as Coro has no such concept.
		1290	* This actually isn't valid with the pthread backend, but OSes requiring
		1291	* that backend are too broken to do it in a standards-compliant way.
1184	*/	1292	*/
1185	PL_top_env = main_top_env;	1293	PL_top_env = main_top_env;
1186	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1294	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1187	}	1295	}
1188	}	1296	}
…		…
1265	cctx_destroy (coro_cctx *cctx)	1373	cctx_destroy (coro_cctx *cctx)
1266	{	1374	{
1267	if (!cctx)	1375	if (!cctx)
1268	return;	1376	return;
1269		1377
1270	assert (cctx != cctx_current);//D temporary	1378	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1271		1379
1272	--cctx_count;	1380	--cctx_count;
1273	coro_destroy (&cctx->cctx);	1381	coro_destroy (&cctx->cctx);
1274		1382
1275	/* coro_transfer creates new, empty cctx's */	1383	/* coro_transfer creates new, empty cctx's */
…		…
1339	/* TODO: throwing up here is considered harmful */	1447	/* TODO: throwing up here is considered harmful */
1340		1448
1341	if (expect_true (prev != next))	1449	if (expect_true (prev != next))
1342	{	1450	{
1343	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1451	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1344	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");	1452	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1345		1453
1346	if (expect_false (next->flags & CF_RUNNING))
1347	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1348
1349	if (expect_false (next->flags & CF_DESTROYED))	1454	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1350	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1455	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1351		1456
1352	#if !PERL_VERSION_ATLEAST (5,10,0)	1457	#if !PERL_VERSION_ATLEAST (5,10,0)
1353	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1458	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1354	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1459	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1355	#endif	1460	#endif
…		…
1393	coro_setup (aTHX_ next);	1498	coro_setup (aTHX_ next);
1394	}	1499	}
1395	else	1500	else
1396	load_perl (aTHX_ next);	1501	load_perl (aTHX_ next);
1397		1502
1398	assert (!prev->cctx);//D temporary
1399
1400	/* possibly untie and reuse the cctx */	1503	/* possibly untie and reuse the cctx */
1401	if (expect_true (	1504	if (expect_true (
1402	cctx_current->idle_sp == STACKLEVEL	1505	cctx_current->idle_sp == STACKLEVEL
1403	&& !(cctx_current->flags & CC_TRACE)	1506	&& !(cctx_current->flags & CC_TRACE)
1404	&& !force_cctx	1507	&& !force_cctx
…		…
1445	coro_state_destroy (pTHX_ struct coro *coro)	1548	coro_state_destroy (pTHX_ struct coro *coro)
1446	{	1549	{
1447	if (coro->flags & CF_DESTROYED)	1550	if (coro->flags & CF_DESTROYED)
1448	return 0;	1551	return 0;
1449		1552
1450	if (coro->on_destroy)	1553	if (coro->on_destroy && !PL_dirty)
1451	coro->on_destroy (aTHX_ coro);	1554	coro->on_destroy (aTHX_ coro);
1452		1555
1453	coro->flags |= CF_DESTROYED;	1556	coro->flags |= CF_DESTROYED;
1454		1557
1455	if (coro->flags & CF_READY)	1558	if (coro->flags & CF_READY)
…		…
1459	--coro_nready;	1562	--coro_nready;
1460	}	1563	}
1461	else	1564	else
1462	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1565	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1463		1566
1464	if (coro->mainstack && coro->mainstack != main_mainstack)	1567	if (coro->mainstack
1465	{	1568	&& coro->mainstack != main_mainstack
1466	struct coro temp;	1569	&& coro->slot
1467		1570	&& !PL_dirty)
1468	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1469
1470	save_perl (aTHX_ &temp);
1471	load_perl (aTHX_ coro);
1472
1473	coro_destruct (aTHX_ coro);	1571	coro_destruct_perl (aTHX_ coro);
1474
1475	load_perl (aTHX_ &temp);
1476
1477	coro->slot = 0;
1478	}
1479		1572
1480	cctx_destroy (coro->cctx);	1573	cctx_destroy (coro->cctx);
1481	SvREFCNT_dec (coro->startcv);	1574	SvREFCNT_dec (coro->startcv);
1482	SvREFCNT_dec (coro->args);	1575	SvREFCNT_dec (coro->args);
1483	SvREFCNT_dec (CORO_THROW);	1576	SvREFCNT_dec (CORO_THROW);
…		…
1542		1635
1543	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1636	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1544	TRANSFER (ta, 1);	1637	TRANSFER (ta, 1);
1545	}	1638	}
1546		1639
1547	/*****************************************************************************/
1548	/* gensub: simple closure generation utility */
1549
1550	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1551
1552	/* create a closure from XS, returns a code reference */
1553	/* the arg can be accessed via GENSUB_ARG from the callback */
1554	/* the callback must use dXSARGS/XSRETURN */
1555	static SV *
1556	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1557	{
1558	CV *cv = (CV *)newSV (0);
1559
1560	sv_upgrade ((SV *)cv, SVt_PVCV);
1561
1562	CvANON_on (cv);
1563	CvISXSUB_on (cv);
1564	CvXSUB (cv) = xsub;
1565	GENSUB_ARG = arg;
1566
1567	return newRV_noinc ((SV *)cv);
1568	}
1569
1570	/** Coro ********************************************************************/	1640	/** Coro ********************************************************************/
1571		1641
1572	INLINE void	1642	INLINE void
1573	coro_enq (pTHX_ struct coro *coro)	1643	coro_enq (pTHX_ struct coro *coro)
1574	{	1644	{
1575	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1645	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1576	}
1577		1646
1578	INLINE SV *	1647	SvREFCNT_inc_NN (coro->hv);
		1648
		1649	coro->next_ready = 0;
		1650	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1651	ready [1] = coro;
		1652	}
		1653
		1654	INLINE struct coro *
1579	coro_deq (pTHX)	1655	coro_deq (pTHX)
1580	{	1656	{
1581	int prio;	1657	int prio;
1582		1658
1583	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1659	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1584	if (AvFILLp (coro_ready [prio]) >= 0)	1660	{
1585	return av_shift (coro_ready [prio]);	1661	struct coro **ready = coro_ready [prio];
		1662
		1663	if (ready [0])
		1664	{
		1665	struct coro *coro = ready [0];
		1666	ready [0] = coro->next_ready;
		1667	return coro;
		1668	}
		1669	}
1586		1670
1587	return 0;	1671	return 0;
		1672	}
		1673
		1674	static void
		1675	invoke_sv_ready_hook_helper (void)
		1676	{
		1677	dTHX;
		1678	dSP;
		1679
		1680	ENTER;
		1681	SAVETMPS;
		1682
		1683	PUSHMARK (SP);
		1684	PUTBACK;
		1685	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1686
		1687	FREETMPS;
		1688	LEAVE;
1588	}	1689	}
1589		1690
1590	static int	1691	static int
1591	api_ready (pTHX_ SV *coro_sv)	1692	api_ready (pTHX_ SV *coro_sv)
1592	{	1693	{
1593	struct coro *coro;
1594	SV *sv_hook;
1595	void (*xs_hook)(void);
1596
1597	coro = SvSTATE (coro_sv);	1694	struct coro *coro = SvSTATE (coro_sv);
1598		1695
1599	if (coro->flags & CF_READY)	1696	if (coro->flags & CF_READY)
1600	return 0;	1697	return 0;
1601		1698
1602	coro->flags |= CF_READY;	1699	coro->flags |= CF_READY;
1603		1700
1604	sv_hook = coro_nready ? 0 : coro_readyhook;
1605	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1606
1607	coro_enq (aTHX_ coro);	1701	coro_enq (aTHX_ coro);
1608	++coro_nready;
1609		1702
1610	if (sv_hook)	1703	if (!coro_nready++)
1611	{	1704	if (coroapi.readyhook)
1612	dSP;	1705	coroapi.readyhook ();
1613
1614	ENTER;
1615	SAVETMPS;
1616
1617	PUSHMARK (SP);
1618	PUTBACK;
1619	call_sv (sv_hook, G_VOID | G_DISCARD);
1620
1621	FREETMPS;
1622	LEAVE;
1623	}
1624
1625	if (xs_hook)
1626	xs_hook ();
1627		1706
1628	return 1;	1707	return 1;
1629	}	1708	}
1630		1709
1631	static int	1710	static int
…		…
1654	static void	1733	static void
1655	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1734	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1656	{	1735	{
1657	for (;;)	1736	for (;;)
1658	{	1737	{
1659	SV *next_sv = coro_deq (aTHX);	1738	struct coro *next = coro_deq (aTHX);
1660		1739
1661	if (expect_true (next_sv))	1740	if (expect_true (next))
1662	{	1741	{
1663	struct coro *next = SvSTATE_hv (next_sv);
1664
1665	/* cannot transfer to destroyed coros, skip and look for next */	1742	/* cannot transfer to destroyed coros, skip and look for next */
1666	if (expect_false (next->flags & CF_DESTROYED))	1743	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1667	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1744	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1668	else	1745	else
1669	{	1746	{
1670	next->flags &= ~CF_READY;	1747	next->flags &= ~CF_READY;
1671	--coro_nready;	1748	--coro_nready;
1672		1749
…		…
1850	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	1927	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1851	api_ready (aTHX_ sv_manager);	1928	api_ready (aTHX_ sv_manager);
1852		1929
1853	frame->prepare = prepare_schedule;	1930	frame->prepare = prepare_schedule;
1854	frame->check = slf_check_repeat;	1931	frame->check = slf_check_repeat;
		1932
		1933	/* as a minor optimisation, we could unwind all stacks here */
		1934	/* but that puts extra pressure on pp_slf, and is not worth much */
		1935	/*coro_unwind_stacks (aTHX);*/
1855	}	1936	}
1856		1937
1857	/*****************************************************************************/	1938	/*****************************************************************************/
1858	/* async pool handler */	1939	/* async pool handler */
1859		1940
…		…
1937		2018
1938	static void	2019	static void
1939	coro_rouse_callback (pTHX_ CV *cv)	2020	coro_rouse_callback (pTHX_ CV *cv)
1940	{	2021	{
1941	dXSARGS;	2022	dXSARGS;
1942	SV *data = (SV *)GENSUB_ARG;	2023	SV *data = (SV *)S_GENSUB_ARG;
1943		2024
1944	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2025	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1945	{	2026	{
1946	/* first call, set args */	2027	/* first call, set args */
		2028	SV *coro = SvRV (data);
1947	AV *av = newAV ();	2029	AV *av = newAV ();
1948	SV *coro = SvRV (data);
1949		2030
1950	SvRV_set (data, (SV *)av);	2031	SvRV_set (data, (SV *)av);
1951	api_ready (aTHX_ coro);
1952	SvREFCNT_dec (coro);
1953		2032
1954	/* better take a full copy of the arguments */	2033	/* better take a full copy of the arguments */
1955	while (items--)	2034	while (items--)
1956	av_store (av, items, newSVsv (ST (items)));	2035	av_store (av, items, newSVsv (ST (items)));
		2036
		2037	api_ready (aTHX_ coro);
		2038	SvREFCNT_dec (coro);
1957	}	2039	}
1958		2040
1959	XSRETURN_EMPTY;	2041	XSRETURN_EMPTY;
1960	}	2042	}
1961		2043
…		…
1978		2060
1979	EXTEND (SP, AvFILLp (av) + 1);	2061	EXTEND (SP, AvFILLp (av) + 1);
1980	for (i = 0; i <= AvFILLp (av); ++i)	2062	for (i = 0; i <= AvFILLp (av); ++i)
1981	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2063	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1982		2064
1983	/* we have stolen the elements, so ste length to zero and free */	2065	/* we have stolen the elements, so set length to zero and free */
1984	AvFILLp (av) = -1;	2066	AvFILLp (av) = -1;
1985	av_undef (av);	2067	av_undef (av);
1986		2068
1987	PUTBACK;	2069	PUTBACK;
1988	}	2070	}
…		…
2012	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2094	|| SvTYPE (SvRV (cb)) != SVt_PVCV
2013	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2095	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2014	croak ("Coro::rouse_wait called with illegal callback argument,");	2096	croak ("Coro::rouse_wait called with illegal callback argument,");
2015		2097
2016	{	2098	{
2017	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2099	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2018	SV *data = (SV *)GENSUB_ARG;	2100	SV *data = (SV *)S_GENSUB_ARG;
2019		2101
2020	frame->data = (void *)data;	2102	frame->data = (void *)data;
2021	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2103	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2022	frame->check = slf_check_rouse_wait;	2104	frame->check = slf_check_rouse_wait;
2023	}	2105	}
…		…
2027	coro_new_rouse_cb (pTHX)	2109	coro_new_rouse_cb (pTHX)
2028	{	2110	{
2029	HV *hv = (HV *)SvRV (coro_current);	2111	HV *hv = (HV *)SvRV (coro_current);
2030	struct coro *coro = SvSTATE_hv (hv);	2112	struct coro *coro = SvSTATE_hv (hv);
2031	SV *data = newRV_inc ((SV *)hv);	2113	SV *data = newRV_inc ((SV *)hv);
2032	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2114	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2033		2115
2034	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2116	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2035	SvREFCNT_dec (data); /* magicext increases the refcount */	2117	SvREFCNT_dec (data); /* magicext increases the refcount */
2036		2118
2037	SvREFCNT_dec (coro->rouse_cb);	2119	SvREFCNT_dec (coro->rouse_cb);
…		…
2278		2360
2279	PL_op->op_ppaddr = pp_slf;	2361	PL_op->op_ppaddr = pp_slf;
2280	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2362	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2281		2363
2282	PL_op = (OP *)&slf_restore;	2364	PL_op = (OP *)&slf_restore;
		2365	}
		2366
		2367	/*****************************************************************************/
		2368	/* dynamic wind */
		2369
		2370	static void
		2371	on_enterleave_call (pTHX_ SV *cb)
		2372	{
		2373	dSP;
		2374
		2375	PUSHSTACK;
		2376
		2377	PUSHMARK (SP);
		2378	PUTBACK;
		2379	call_sv (cb, G_VOID | G_DISCARD);
		2380	SPAGAIN;
		2381
		2382	POPSTACK;
		2383	}
		2384
		2385	static SV *
		2386	coro_avp_pop_and_free (pTHX_ AV **avp)
		2387	{
		2388	AV *av = *avp;
		2389	SV *res = av_pop (av);
		2390
		2391	if (AvFILLp (av) < 0)
		2392	{
		2393	*avp = 0;
		2394	SvREFCNT_dec (av);
		2395	}
		2396
		2397	return res;
		2398	}
		2399
		2400	static void
		2401	coro_pop_on_enter (pTHX_ void *coro)
		2402	{
		2403	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2404	SvREFCNT_dec (cb);
		2405	}
		2406
		2407	static void
		2408	coro_pop_on_leave (pTHX_ void *coro)
		2409	{
		2410	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2411	on_enterleave_call (aTHX_ sv_2mortal (cb));
2283	}	2412	}
2284		2413
2285	/*****************************************************************************/	2414	/*****************************************************************************/
2286	/* PerlIO::cede */	2415	/* PerlIO::cede */
2287		2416
…		…
2361	/* Coro::Semaphore & Coro::Signal */	2490	/* Coro::Semaphore & Coro::Signal */
2362		2491
2363	static SV *	2492	static SV *
2364	coro_waitarray_new (pTHX_ int count)	2493	coro_waitarray_new (pTHX_ int count)
2365	{	2494	{
2366	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2495	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2367	AV *av = newAV ();	2496	AV *av = newAV ();
2368	SV **ary;	2497	SV **ary;
2369		2498
2370	/* unfortunately, building manually saves memory */	2499	/* unfortunately, building manually saves memory */
2371	Newx (ary, 2, SV *);	2500	Newx (ary, 2, SV *);
2372	AvALLOC (av) = ary;	2501	AvALLOC (av) = ary;
		2502	#if PERL_VERSION_ATLEAST (5,10,0)
2373	/*AvARRAY (av) = ary;*/	2503	AvARRAY (av) = ary;
		2504	#else
2374	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2505	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2506	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2507	SvPVX ((SV *)av) = (char *)ary;
		2508	#endif
2375	AvMAX (av) = 1;	2509	AvMAX (av) = 1;
2376	AvFILLp (av) = 0;	2510	AvFILLp (av) = 0;
2377	ary [0] = newSViv (count);	2511	ary [0] = newSViv (count);
2378		2512
2379	return newRV_noinc ((SV *)av);	2513	return newRV_noinc ((SV *)av);
…		…
2508	{	2642	{
2509	if (items >= 2)	2643	if (items >= 2)
2510	{	2644	{
2511	/* callback form */	2645	/* callback form */
2512	AV *av = (AV *)SvRV (arg [0]);	2646	AV *av = (AV *)SvRV (arg [0]);
2513	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2647	SV *cb_cv = s_get_cv_croak (arg [1]);
2514		2648
2515	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2649	av_push (av, SvREFCNT_inc_NN (cb_cv));
2516		2650
2517	if (SvIVX (AvARRAY (av)[0]) > 0)	2651	if (SvIVX (AvARRAY (av)[0]) > 0)
2518	coro_semaphore_adjust (aTHX_ av, 0);	2652	coro_semaphore_adjust (aTHX_ av, 0);
2519		2653
2520	frame->prepare = prepare_nop;	2654	frame->prepare = prepare_nop;
…		…
2544	AvARRAY (av)[0] = AvARRAY (av)[1];	2678	AvARRAY (av)[0] = AvARRAY (av)[1];
2545	AvARRAY (av)[1] = cb;	2679	AvARRAY (av)[1] = cb;
2546		2680
2547	cb = av_shift (av);	2681	cb = av_shift (av);
2548		2682
		2683	if (SvTYPE (cb) == SVt_PVCV)
		2684	{
		2685	dSP;
		2686	PUSHMARK (SP);
		2687	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2688	PUTBACK;
		2689	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2690	}
		2691	else
		2692	{
2549	api_ready (aTHX_ cb);	2693	api_ready (aTHX_ cb);
2550	sv_setiv (cb, 0); /* signal waiter */	2694	sv_setiv (cb, 0); /* signal waiter */
		2695	}
		2696
2551	SvREFCNT_dec (cb);	2697	SvREFCNT_dec (cb);
2552		2698
2553	--count;	2699	--count;
2554	}	2700	}
2555	}	2701	}
…		…
2564	static void	2710	static void
2565	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2711	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2566	{	2712	{
2567	AV *av = (AV *)SvRV (arg [0]);	2713	AV *av = (AV *)SvRV (arg [0]);
2568		2714
		2715	if (items >= 2)
		2716	{
		2717	SV *cb_cv = s_get_cv_croak (arg [1]);
		2718	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2719
2569	if (SvIVX (AvARRAY (av)[0]))	2720	if (SvIVX (AvARRAY (av)[0]))
		2721	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
		2722
		2723	frame->prepare = prepare_nop;
		2724	frame->check = slf_check_nop;
		2725	}
		2726	else if (SvIVX (AvARRAY (av)[0]))
2570	{	2727	{
2571	SvIVX (AvARRAY (av)[0]) = 0;	2728	SvIVX (AvARRAY (av)[0]) = 0;
2572	frame->prepare = prepare_nop;	2729	frame->prepare = prepare_nop;
2573	frame->check = slf_check_nop;	2730	frame->check = slf_check_nop;
2574	}	2731	}
2575	else	2732	else
2576	{	2733	{
2577	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2734	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2578		2735
2579	av_push (av, waiter);	2736	av_push (av, waiter);
2580		2737
2581	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2738	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2582	frame->prepare = prepare_schedule;	2739	frame->prepare = prepare_schedule;
…		…
2600		2757
2601	static void	2758	static void
2602	coro_aio_callback (pTHX_ CV *cv)	2759	coro_aio_callback (pTHX_ CV *cv)
2603	{	2760	{
2604	dXSARGS;	2761	dXSARGS;
2605	AV *state = (AV *)GENSUB_ARG;	2762	AV *state = (AV *)S_GENSUB_ARG;
2606	SV *coro = av_pop (state);	2763	SV *coro = av_pop (state);
2607	SV *data_sv = newSV (sizeof (struct io_state));	2764	SV *data_sv = newSV (sizeof (struct io_state));
2608		2765
2609	av_extend (state, items - 1);	2766	av_extend (state, items - 1);
2610		2767
…		…
2724		2881
2725	for (i = 0; i < items; ++i)	2882	for (i = 0; i < items; ++i)
2726	PUSHs (arg [i]);	2883	PUSHs (arg [i]);
2727		2884
2728	/* now push the callback closure */	2885	/* now push the callback closure */
2729	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	2886	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2730		2887
2731	/* now call the AIO function - we assume our request is uncancelable */	2888	/* now call the AIO function - we assume our request is uncancelable */
2732	PUTBACK;	2889	PUTBACK;
2733	call_sv ((SV *)req, G_VOID | G_DISCARD);	2890	call_sv ((SV *)req, G_VOID | G_DISCARD);
2734	}	2891	}
…		…
2821		2978
2822	if (!svp) croak ("Time::HiRes is required");	2979	if (!svp) croak ("Time::HiRes is required");
2823	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	2980	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2824		2981
2825	nvtime = INT2PTR (double (*)(), SvIV (*svp));	2982	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		2983
		2984	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		2985	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2826	}	2986	}
2827		2987
2828	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2988	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2829	}	2989	}
2830		2990
2831	SV *	2991	SV *
2832	new (char *klass, ...)	2992	new (char *klass, ...)
2833	ALIAS:	2993	ALIAS:
…		…
2835	CODE:	2995	CODE:
2836	{	2996	{
2837	struct coro *coro;	2997	struct coro *coro;
2838	MAGIC *mg;	2998	MAGIC *mg;
2839	HV *hv;	2999	HV *hv;
2840	CV *cb;	3000	SV *cb;
2841	int i;	3001	int i;
2842		3002
2843	if (items > 1)	3003	if (items > 1)
2844	{	3004	{
2845	cb = coro_sv_2cv (aTHX_ ST (1));	3005	cb = s_get_cv_croak (ST (1));
2846		3006
2847	if (!ix)	3007	if (!ix)
2848	{	3008	{
2849	if (CvISXSUB (cb))	3009	if (CvISXSUB (cb))
2850	croak ("Coro::State doesn't support XS functions as coroutine start, caught");	3010	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
…		…
2872	av_extend (coro->args, items - 1 + ix - 1);	3032	av_extend (coro->args, items - 1 + ix - 1);
2873		3033
2874	if (ix)	3034	if (ix)
2875	{	3035	{
2876	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));	3036	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2877	cb = cv_coro_run;	3037	cb = (SV *)cv_coro_run;
2878	}	3038	}
2879		3039
2880	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);	3040	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2881		3041
2882	for (i = 2; i < items; i++)	3042	for (i = 2; i < items; i++)
…		…
2908	SV *	3068	SV *
2909	clone (Coro::State coro)	3069	clone (Coro::State coro)
2910	CODE:	3070	CODE:
2911	{	3071	{
2912	#if CORO_CLONE	3072	#if CORO_CLONE
2913	struct coro *ncoro = coro_clone (coro);	3073	struct coro *ncoro = coro_clone (aTHX_ coro);
2914	MAGIC *mg;	3074	MAGIC *mg;
2915	/* TODO: too much duplication */	3075	/* TODO: too much duplication */
2916	ncoro->hv = newHV ();	3076	ncoro->hv = newHV ();
2917	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);	3077	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2918	mg->mg_flags |= MGf_DUP;	3078	mg->mg_flags |= MGf_DUP;
…		…
2980	eval = 1	3140	eval = 1
2981	CODE:	3141	CODE:
2982	{	3142	{
2983	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3143	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2984	{	3144	{
2985	struct coro temp;	3145	struct coro *current = SvSTATE_current;
2986		3146
2987	if (!(coro->flags & CF_RUNNING))	3147	if (current != coro)
2988	{	3148	{
2989	PUTBACK;	3149	PUTBACK;
2990	save_perl (aTHX_ &temp);	3150	save_perl (aTHX_ current);
2991	load_perl (aTHX_ coro);	3151	load_perl (aTHX_ coro);
		3152	SPAGAIN;
2992	}	3153	}
2993		3154
2994	{
2995	dSP;
2996	ENTER;
2997	SAVETMPS;
2998	PUTBACK;
2999	PUSHSTACK;	3155	PUSHSTACK;
		3156
3000	PUSHMARK (SP);	3157	PUSHMARK (SP);
		3158	PUTBACK;
3001		3159
3002	if (ix)	3160	if (ix)
3003	eval_sv (coderef, 0);	3161	eval_sv (coderef, 0);
3004	else	3162	else
3005	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3163	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3006		3164
3007	POPSTACK;	3165	POPSTACK;
3008	SPAGAIN;	3166	SPAGAIN;
3009	FREETMPS;
3010	LEAVE;
3011	PUTBACK;
3012	}
3013		3167
3014	if (!(coro->flags & CF_RUNNING))	3168	if (current != coro)
3015	{	3169	{
		3170	PUTBACK;
3016	save_perl (aTHX_ coro);	3171	save_perl (aTHX_ coro);
3017	load_perl (aTHX_ &temp);	3172	load_perl (aTHX_ current);
3018	SPAGAIN;	3173	SPAGAIN;
3019	}	3174	}
3020	}	3175	}
3021	}	3176	}
3022		3177
…		…
3026	ALIAS:	3181	ALIAS:
3027	is_ready = CF_READY	3182	is_ready = CF_READY
3028	is_running = CF_RUNNING	3183	is_running = CF_RUNNING
3029	is_new = CF_NEW	3184	is_new = CF_NEW
3030	is_destroyed = CF_DESTROYED	3185	is_destroyed = CF_DESTROYED
		3186	is_suspended = CF_SUSPENDED
3031	CODE:	3187	CODE:
3032	RETVAL = boolSV (coro->flags & ix);	3188	RETVAL = boolSV (coro->flags & ix);
3033	OUTPUT:	3189	OUTPUT:
3034	RETVAL	3190	RETVAL
3035		3191
…		…
3039	CODE:	3195	CODE:
3040	{	3196	{
3041	struct coro *current = SvSTATE_current;	3197	struct coro *current = SvSTATE_current;
3042	SV **throwp = self == current ? &CORO_THROW : &self->except;	3198	SV **throwp = self == current ? &CORO_THROW : &self->except;
3043	SvREFCNT_dec (*throwp);	3199	SvREFCNT_dec (*throwp);
		3200	SvGETMAGIC (throw);
3044	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3201	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
3045	}	3202	}
3046		3203
3047	void	3204	void
3048	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3205	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
…		…
3100	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3257	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3101		3258
3102	SV *tmp = *src; *src = *dst; *dst = tmp;	3259	SV *tmp = *src; *src = *dst; *dst = tmp;
3103	}	3260	}
3104		3261
		3262	void
		3263	cancel (Coro::State self)
		3264	CODE:
		3265	coro_state_destroy (aTHX_ self);
		3266	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3267
		3268
		3269	SV *
		3270	enable_times (int enabled = enable_times)
		3271	CODE:
		3272	{
		3273	RETVAL = boolSV (enable_times);
		3274
		3275	if (enabled != enable_times)
		3276	{
		3277	enable_times = enabled;
		3278
		3279	coro_times_update ();
		3280	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3281	}
		3282	}
		3283	OUTPUT:
		3284	RETVAL
		3285
		3286	void
		3287	times (Coro::State self)
		3288	PPCODE:
		3289	{
		3290	struct coro *current = SvSTATE (coro_current);
		3291
		3292	if (expect_false (current == self))
		3293	{
		3294	coro_times_update ();
		3295	coro_times_add (SvSTATE (coro_current));
		3296	}
		3297
		3298	EXTEND (SP, 2);
		3299	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3300	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3301
		3302	if (expect_false (current == self))
		3303	coro_times_sub (SvSTATE (coro_current));
		3304	}
3105		3305
3106	MODULE = Coro::State PACKAGE = Coro	3306	MODULE = Coro::State PACKAGE = Coro
3107		3307
3108	BOOT:	3308	BOOT:
3109	{	3309	{
3110	int i;
3111
3112	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3310	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3113	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3311	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3114	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3312	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3115	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3313	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3116	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3314	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3117	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3315	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3118	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3316	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3119	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3317	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
…		…
3124	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3322	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3125	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3323	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
3126		3324
3127	coro_stash = gv_stashpv ("Coro", TRUE);	3325	coro_stash = gv_stashpv ("Coro", TRUE);
3128		3326
3129	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3327	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3130	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3328	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3131	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3329	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3132	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3330	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3133	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3331	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3134	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3332	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3135
3136	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3137	coro_ready[i] = newAV ();
3138		3333
3139	{	3334	{
3140	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3335	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3141		3336
3142	coroapi.schedule = api_schedule;	3337	coroapi.schedule = api_schedule;
…		…
3183	cede_notself (...)	3378	cede_notself (...)
3184	CODE:	3379	CODE:
3185	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3380	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3186		3381
3187	void	3382	void
3188	_cancel (Coro::State self)
3189	CODE:
3190	coro_state_destroy (aTHX_ self);
3191	coro_call_on_destroy (aTHX_ self);
3192
3193	void
3194	_set_current (SV *current)	3383	_set_current (SV *current)
3195	PROTOTYPE: $	3384	PROTOTYPE: $
3196	CODE:	3385	CODE:
3197	SvREFCNT_dec (SvRV (coro_current));	3386	SvREFCNT_dec (SvRV (coro_current));
3198	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));	3387	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
…		…
3200	void	3389	void
3201	_set_readyhook (SV *hook)	3390	_set_readyhook (SV *hook)
3202	PROTOTYPE: $	3391	PROTOTYPE: $
3203	CODE:	3392	CODE:
3204	SvREFCNT_dec (coro_readyhook);	3393	SvREFCNT_dec (coro_readyhook);
		3394	SvGETMAGIC (hook);
		3395	if (SvOK (hook))
		3396	{
3205	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3397	coro_readyhook = newSVsv (hook);
		3398	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3399	}
		3400	else
		3401	{
		3402	coro_readyhook = 0;
		3403	CORO_READYHOOK = 0;
		3404	}
3206		3405
3207	int	3406	int
3208	prio (Coro::State coro, int newprio = 0)	3407	prio (Coro::State coro, int newprio = 0)
3209	PROTOTYPE: $;$	3408	PROTOTYPE: $;$
3210	ALIAS:	3409	ALIAS:
…		…
3216	if (items > 1)	3415	if (items > 1)
3217	{	3416	{
3218	if (ix)	3417	if (ix)
3219	newprio = coro->prio - newprio;	3418	newprio = coro->prio - newprio;
3220		3419
3221	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3420	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3222	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3421	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3223		3422
3224	coro->prio = newprio;	3423	coro->prio = newprio;
3225	}	3424	}
3226	}	3425	}
3227	OUTPUT:	3426	OUTPUT:
…		…
3240	PROTOTYPE:	3439	PROTOTYPE:
3241	CODE:	3440	CODE:
3242	RETVAL = coro_nready;	3441	RETVAL = coro_nready;
3243	OUTPUT:	3442	OUTPUT:
3244	RETVAL	3443	RETVAL
		3444
		3445	void
		3446	suspend (Coro::State self)
		3447	PROTOTYPE: $
		3448	CODE:
		3449	self->flags |= CF_SUSPENDED;
		3450
		3451	void
		3452	resume (Coro::State self)
		3453	PROTOTYPE: $
		3454	CODE:
		3455	self->flags &= ~CF_SUSPENDED;
3245		3456
3246	void	3457	void
3247	_pool_handler (...)	3458	_pool_handler (...)
3248	CODE:	3459	CODE:
3249	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3460	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
…		…
3304	rouse_wait (...)	3515	rouse_wait (...)
3305	PROTOTYPE: ;$	3516	PROTOTYPE: ;$
3306	PPCODE:	3517	PPCODE:
3307	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3518	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3308		3519
		3520	void
		3521	on_enter (SV *block)
		3522	ALIAS:
		3523	on_leave = 1
		3524	PROTOTYPE: &
		3525	CODE:
		3526	{
		3527	struct coro *coro = SvSTATE_current;
		3528	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3529
		3530	block = s_get_cv_croak (block);
		3531
		3532	if (!*avp)
		3533	*avp = newAV ();
		3534
		3535	av_push (*avp, SvREFCNT_inc (block));
		3536
		3537	if (!ix)
		3538	on_enterleave_call (aTHX_ block);
		3539
		3540	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3541	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3542	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3543	}
		3544
3309		3545
3310	MODULE = Coro::State PACKAGE = PerlIO::cede	3546	MODULE = Coro::State PACKAGE = PerlIO::cede
3311		3547
3312	BOOT:	3548	BOOT:
3313	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3549	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3316	MODULE = Coro::State PACKAGE = Coro::Semaphore	3552	MODULE = Coro::State PACKAGE = Coro::Semaphore
3317		3553
3318	SV *	3554	SV *
3319	new (SV *klass, SV *count = 0)	3555	new (SV *klass, SV *count = 0)
3320	CODE:	3556	CODE:
		3557	{
		3558	int semcnt = 1;
		3559
		3560	if (count)
		3561	{
		3562	SvGETMAGIC (count);
		3563
		3564	if (SvOK (count))
		3565	semcnt = SvIV (count);
		3566	}
		3567
3321	RETVAL = sv_bless (	3568	RETVAL = sv_bless (
3322	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3569	coro_waitarray_new (aTHX_ semcnt),
3323	GvSTASH (CvGV (cv))	3570	GvSTASH (CvGV (cv))
3324	);	3571	);
		3572	}
3325	OUTPUT:	3573	OUTPUT:
3326	RETVAL	3574	RETVAL
3327		3575
3328	# helper for Coro::Channel	3576	# helper for Coro::Channel and others
3329	SV *	3577	SV *
3330	_alloc (int count)	3578	_alloc (int count)
3331	CODE:	3579	CODE:
3332	RETVAL = coro_waitarray_new (aTHX_ count);	3580	RETVAL = coro_waitarray_new (aTHX_ count);
3333	OUTPUT:	3581	OUTPUT:
…		…
3391	for (i = 1; i <= wcount; ++i)	3639	for (i = 1; i <= wcount; ++i)
3392	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3640	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3393	}	3641	}
3394	}	3642	}
3395		3643
		3644	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3645
		3646	void
		3647	_may_delete (SV *sem, int count, int extra_refs)
		3648	PPCODE:
		3649	{
		3650	AV *av = (AV *)SvRV (sem);
		3651
		3652	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3653	&& AvFILLp (av) == 0 /* no waiters, just count */
		3654	&& SvIV (AvARRAY (av)[0]) == count)
		3655	XSRETURN_YES;
		3656
		3657	XSRETURN_NO;
		3658	}
		3659
3396	MODULE = Coro::State PACKAGE = Coro::Signal	3660	MODULE = Coro::State PACKAGE = Coro::Signal
3397		3661
3398	SV *	3662	SV *
3399	new (SV *klass)	3663	new (SV *klass)
3400	CODE:	3664	CODE:
…		…
3471		3735
3472	void	3736	void
3473	_register (char *target, char *proto, SV *req)	3737	_register (char *target, char *proto, SV *req)
3474	CODE:	3738	CODE:
3475	{	3739	{
3476	CV *req_cv = coro_sv_2cv (aTHX_ req);	3740	SV *req_cv = s_get_cv_croak (req);
3477	/* newXSproto doesn't return the CV on 5.8 */	3741	/* newXSproto doesn't return the CV on 5.8 */
3478	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3742	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3479	sv_setpv ((SV *)slf_cv, proto);	3743	sv_setpv ((SV *)slf_cv, proto);
3480	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3744	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3481	}	3745	}
3482		3746
		3747	MODULE = Coro::State PACKAGE = Coro::Select
		3748
		3749	void
		3750	patch_pp_sselect ()
		3751	CODE:
		3752	if (!coro_old_pp_sselect)
		3753	{
		3754	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3755	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3756	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3757	}
		3758
		3759	void
		3760	unpatch_pp_sselect ()
		3761	CODE:
		3762	if (coro_old_pp_sselect)
		3763	{
		3764	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3765	coro_old_pp_sselect = 0;
		3766	}
		3767
		3768

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