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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.337 by root, Fri Dec 5 18:26:10 2008 UTC vs.
Revision 1.372 by root, Thu Oct 1 23:50:23 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
…		…
137		78
138	#define IN_DESTRUCT PL_dirty	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
…		…
190	static SV *sv_pool_size;	142	static SV *sv_pool_size;
191	static SV *sv_async_pool_idle; /* description string */	143	static SV *sv_async_pool_idle; /* description string */
192	static AV *av_async_pool; /* idle pool */	144	static AV *av_async_pool; /* idle pool */
193	static SV *sv_Coro; /* class string */	145	static SV *sv_Coro; /* class string */
194	static CV *cv_pool_handler;	146	static CV *cv_pool_handler;
195	static CV *cv_coro_state_new;
196		147
197	/* Coro::AnyEvent */	148	/* Coro::AnyEvent */
198	static SV *sv_activity;	149	static SV *sv_activity;
		150
		151	/* enable processtime/realtime profiling */
		152	static char enable_times;
		153	typedef U32 coro_ts[2];
		154	static coro_ts time_real, time_cpu;
		155	static char times_valid;
199		156
200	static struct coro_cctx *cctx_first;	157	static struct coro_cctx *cctx_first;
201	static int cctx_count, cctx_idle;	158	static int cctx_count, cctx_idle;
202		159
203	enum {	160	enum {
…		…
238	enum {	195	enum {
239	CF_RUNNING = 0x0001, /* coroutine is running */	196	CF_RUNNING = 0x0001, /* coroutine is running */
240	CF_READY = 0x0002, /* coroutine is ready */	197	CF_READY = 0x0002, /* coroutine is ready */
241	CF_NEW = 0x0004, /* has never been switched to */	198	CF_NEW = 0x0004, /* has never been switched to */
242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	199	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		200	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
243	};	201	};
244		202
245	/* the structure where most of the perl state is stored, overlaid on the cxstack */	203	/* the structure where most of the perl state is stored, overlaid on the cxstack */
246	typedef struct	204	typedef struct
247	{	205	{
…		…
260	/* this is a structure representing a perl-level coroutine */	218	/* this is a structure representing a perl-level coroutine */
261	struct coro {	219	struct coro {
262	/* the C coroutine allocated to this perl coroutine, if any */	220	/* the C coroutine allocated to this perl coroutine, if any */
263	coro_cctx *cctx;	221	coro_cctx *cctx;
264		222
		223	/* ready queue */
		224	struct coro *next_ready;
		225
265	/* state data */	226	/* state data */
266	struct CoroSLF slf_frame; /* saved slf frame */	227	struct CoroSLF slf_frame; /* saved slf frame */
267	AV *mainstack;	228	AV *mainstack;
268	perl_slots *slot; /* basically the saved sp */	229	perl_slots *slot; /* basically the saved sp */
269		230
…		…
285	/* async_pool */	246	/* async_pool */
286	SV *saved_deffh;	247	SV *saved_deffh;
287	SV *invoke_cb;	248	SV *invoke_cb;
288	AV *invoke_av;	249	AV *invoke_av;
289		250
		251	/* on_enter/on_leave */
		252	AV *on_enter;
		253	AV *on_leave;
		254
		255	/* times */
		256	coro_ts t_cpu, t_real;
		257
290	/* linked list */	258	/* linked list */
291	struct coro *next, *prev;	259	struct coro *next, *prev;
292	};	260	};
293		261
294	typedef struct coro *Coro__State;	262	typedef struct coro *Coro__State;
…		…
299	/* the mainr easonw e don't support windows process emulation */	267	/* the mainr easonw e don't support windows process emulation */
300	static struct CoroSLF slf_frame; /* the current slf frame */	268	static struct CoroSLF slf_frame; /* the current slf frame */
301		269
302	/** Coro ********************************************************************/	270	/** Coro ********************************************************************/
303		271
304	#define PRIO_MAX 3	272	#define CORO_PRIO_MAX 3
305	#define PRIO_HIGH 1	273	#define CORO_PRIO_HIGH 1
306	#define PRIO_NORMAL 0	274	#define CORO_PRIO_NORMAL 0
307	#define PRIO_LOW -1	275	#define CORO_PRIO_LOW -1
308	#define PRIO_IDLE -3	276	#define CORO_PRIO_IDLE -3
309	#define PRIO_MIN -4	277	#define CORO_PRIO_MIN -4
310		278
311	/* for Coro.pm */	279	/* for Coro.pm */
312	static SV *coro_current;	280	static SV *coro_current;
313	static SV *coro_readyhook;	281	static SV *coro_readyhook;
314	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	282	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
315	static CV *cv_coro_run, *cv_coro_terminate;	283	static CV *cv_coro_run, *cv_coro_terminate;
316	static struct coro *coro_first;	284	static struct coro *coro_first;
317	#define coro_nready coroapi.nready	285	#define coro_nready coroapi.nready
		286
		287	/** Coro::Select ************************************************************/
		288
		289	static OP *(*coro_old_pp_sselect) (pTHX);
		290	static SV *coro_select_select;
		291
		292	/* horrible hack, but if it works... */
		293	static OP *
		294	coro_pp_sselect (pTHX)
		295	{
		296	dSP;
		297	PUSHMARK (SP - 4); /* fake argument list */
		298	XPUSHs (coro_select_select);
		299	PUTBACK;
		300
		301	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
		302	PL_op->op_flags |= OPf_STACKED;
		303	PL_op->op_private = 0;
		304	return PL_ppaddr [OP_ENTERSUB](aTHX);
		305	}
318		306
319	/** lowlevel stuff **********************************************************/	307	/** lowlevel stuff **********************************************************/
320		308
321	static SV *	309	static SV *
322	coro_get_sv (pTHX_ const char *name, int create)	310	coro_get_sv (pTHX_ const char *name, int create)
…		…
346	get_hv (name, create);	334	get_hv (name, create);
347	#endif	335	#endif
348	return get_hv (name, create);	336	return get_hv (name, create);
349	}	337	}
350		338
351	/* may croak */	339	INLINE void
352	INLINE CV *	340	coro_times_update ()
353	coro_sv_2cv (pTHX_ SV *sv)
354	{	341	{
355	HV *st;	342	#ifdef coro_clock_gettime
356	GV *gvp;	343	struct timespec ts;
357	return sv_2cv (sv, &st, &gvp, 0);	344
		345	ts.tv_sec = ts.tv_nsec = 0;
		346	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		347	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
		348
		349	ts.tv_sec = ts.tv_nsec = 0;
		350	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		351	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		352	#else
		353	dTHX;
		354	UV tv[2];
		355
		356	u2time (aTHX_ tv);
		357	time_real [0] = tv [0];
		358	time_real [1] = tv [1] * 1000;
		359	#endif
		360	}
		361
		362	INLINE void
		363	coro_times_add (struct coro *c)
		364	{
		365	c->t_real [1] += time_real [1];
		366	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		367	c->t_real [0] += time_real [0];
		368
		369	c->t_cpu [1] += time_cpu [1];
		370	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		371	c->t_cpu [0] += time_cpu [0];
		372	}
		373
		374	INLINE void
		375	coro_times_sub (struct coro *c)
		376	{
		377	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		378	c->t_real [1] -= time_real [1];
		379	c->t_real [0] -= time_real [0];
		380
		381	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		382	c->t_cpu [1] -= time_cpu [1];
		383	c->t_cpu [0] -= time_cpu [0];
358	}	384	}
359		385
360	/*****************************************************************************/	386	/*****************************************************************************/
361	/* magic glue */	387	/* magic glue */
362		388
…		…
462	static int	488	static int
463	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	489	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
464	{	490	{
465	AV *padlist;	491	AV *padlist;
466	AV *av = (AV *)mg->mg_obj;	492	AV *av = (AV *)mg->mg_obj;
		493
		494	/* perl manages to free our internal AV and _then_ call us */
		495	if (IN_DESTRUCT)
		496	return 0;
467		497
468	/* casting is fun. */	498	/* casting is fun. */
469	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	499	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
470	free_padlist (aTHX_ padlist);	500	free_padlist (aTHX_ padlist);
471		501
…		…
521	}	551	}
522		552
523	/** load & save, init *******************************************************/	553	/** load & save, init *******************************************************/
524		554
525	static void	555	static void
		556	on_enterleave_call (pTHX_ SV *cb);
		557
		558	static void
526	load_perl (pTHX_ Coro__State c)	559	load_perl (pTHX_ Coro__State c)
527	{	560	{
528	perl_slots *slot = c->slot;	561	perl_slots *slot = c->slot;
529	c->slot = 0;	562	c->slot = 0;
530		563
…		…
556	PUTBACK;	589	PUTBACK;
557	}	590	}
558		591
559	slf_frame = c->slf_frame;	592	slf_frame = c->slf_frame;
560	CORO_THROW = c->except;	593	CORO_THROW = c->except;
		594
		595	if (expect_false (enable_times))
		596	{
		597	if (expect_false (!times_valid))
		598	coro_times_update ();
		599
		600	coro_times_sub (c);
		601	}
		602
		603	if (expect_false (c->on_enter))
		604	{
		605	int i;
		606
		607	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		608	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		609	}
561	}	610	}
562		611
563	static void	612	static void
564	save_perl (pTHX_ Coro__State c)	613	save_perl (pTHX_ Coro__State c)
565	{	614	{
		615	if (expect_false (c->on_leave))
		616	{
		617	int i;
		618
		619	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		620	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		621	}
		622
		623	times_valid = 0;
		624
		625	if (expect_false (enable_times))
		626	{
		627	coro_times_update (); times_valid = 1;
		628	coro_times_add (c);
		629	}
		630
566	c->except = CORO_THROW;	631	c->except = CORO_THROW;
567	c->slf_frame = slf_frame;	632	c->slf_frame = slf_frame;
568		633
569	{	634	{
570	dSP;	635	dSP;
…		…
583	{	648	{
584	while (expect_true (cxix >= 0))	649	while (expect_true (cxix >= 0))
585	{	650	{
586	PERL_CONTEXT *cx = &ccstk[cxix--];	651	PERL_CONTEXT *cx = &ccstk[cxix--];
587		652
588	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))	653	if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
589	{	654	{
590	CV *cv = cx->blk_sub.cv;	655	CV *cv = cx->blk_sub.cv;
591		656
592	if (expect_true (CvDEPTH (cv)))	657	if (expect_true (CvDEPTH (cv)))
593	{	658	{
…		…
617	/* we manually unroll here, as usually 2 slots is enough */	682	/* we manually unroll here, as usually 2 slots is enough */
618	if (SLOT_COUNT >= 1) CXINC;	683	if (SLOT_COUNT >= 1) CXINC;
619	if (SLOT_COUNT >= 2) CXINC;	684	if (SLOT_COUNT >= 2) CXINC;
620	if (SLOT_COUNT >= 3) CXINC;	685	if (SLOT_COUNT >= 3) CXINC;
621	{	686	{
622	int i;	687	unsigned int i;
623	for (i = 3; i < SLOT_COUNT; ++i)	688	for (i = 3; i < SLOT_COUNT; ++i)
624	CXINC;	689	CXINC;
625	}	690	}
626	cxstack_ix -= SLOT_COUNT; /* undo allocation */	691	cxstack_ix -= SLOT_COUNT; /* undo allocation */
627		692
…		…
769	#endif	834	#endif
770		835
771	/*	836	/*
772	* This overrides the default magic get method of %SIG elements.	837	* This overrides the default magic get method of %SIG elements.
773	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	838	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
774	* and instead of tryign to save and restore the hash elements, we just provide	839	* and instead of trying to save and restore the hash elements, we just provide
775	* readback here.	840	* readback here.
776	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
777	* not expecting this to actually change the hook. This is a potential problem
778	* when a schedule happens then, but we ignore this.
779	*/	841	*/
780	static int	842	static int
781	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	843	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
782	{	844	{
783	const char *s = MgPV_nolen_const (mg);	845	const char *s = MgPV_nolen_const (mg);
…		…
836	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	898	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
837		899
838	if (svp)	900	if (svp)
839	{	901	{
840	SV *old = *svp;	902	SV *old = *svp;
841	*svp = newSVsv (sv);	903	*svp = SvOK (sv) ? newSVsv (sv) : 0;
842	SvREFCNT_dec (old);	904	SvREFCNT_dec (old);
843	return 0;	905	return 0;
844	}	906	}
845	}	907	}
846		908
…		…
935		997
936	PL_op = (OP *)&coro_setup_op;	998	PL_op = (OP *)&coro_setup_op;
937		999
938	/* copy throw, in case it was set before coro_setup */	1000	/* copy throw, in case it was set before coro_setup */
939	CORO_THROW = coro->except;	1001	CORO_THROW = coro->except;
		1002
		1003	if (expect_false (enable_times))
		1004	{
		1005	coro_times_update ();
		1006	coro_times_sub (coro);
		1007	}
940	}	1008	}
941		1009
942	static void	1010	static void
943	coro_unwind_stacks (pTHX)	1011	coro_unwind_stacks (pTHX)
944	{	1012	{
…		…
961	}	1029	}
962		1030
963	static void	1031	static void
964	coro_destruct_perl (pTHX_ struct coro *coro)	1032	coro_destruct_perl (pTHX_ struct coro *coro)
965	{	1033	{
		1034	SV *svf [9];
		1035
		1036	{
		1037	struct coro *current = SvSTATE_current;
		1038
		1039	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1040
		1041	save_perl (aTHX_ current);
		1042	load_perl (aTHX_ coro);
		1043
966	coro_unwind_stacks (aTHX);	1044	coro_unwind_stacks (aTHX);
		1045	coro_destruct_stacks (aTHX);
967		1046
968	SvREFCNT_dec (GvSV (PL_defgv));	1047	// now save some sv's to be free'd later
969	SvREFCNT_dec (GvAV (PL_defgv));	1048	svf [0] = GvSV (PL_defgv);
970	SvREFCNT_dec (GvSV (PL_errgv));	1049	svf [1] = (SV *)GvAV (PL_defgv);
971	SvREFCNT_dec (PL_defoutgv);	1050	svf [2] = GvSV (PL_errgv);
972	SvREFCNT_dec (PL_rs);	1051	svf [3] = (SV *)PL_defoutgv;
973	SvREFCNT_dec (GvSV (irsgv));	1052	svf [4] = PL_rs;
974	SvREFCNT_dec (GvHV (PL_hintgv));	1053	svf [5] = GvSV (irsgv);
		1054	svf [6] = (SV *)GvHV (PL_hintgv);
		1055	svf [7] = PL_diehook;
		1056	svf [8] = PL_warnhook;
		1057	assert (9 == sizeof (svf) / sizeof (*svf));
975		1058
976	SvREFCNT_dec (PL_diehook);	1059	load_perl (aTHX_ current);
977	SvREFCNT_dec (PL_warnhook);
978		1060	}
		1061
		1062	{
		1063	unsigned int i;
		1064
		1065	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1066	SvREFCNT_dec (svf [i]);
		1067
979	SvREFCNT_dec (coro->saved_deffh);	1068	SvREFCNT_dec (coro->saved_deffh);
980	SvREFCNT_dec (coro->rouse_cb);	1069	SvREFCNT_dec (coro->rouse_cb);
981	SvREFCNT_dec (coro->invoke_cb);	1070	SvREFCNT_dec (coro->invoke_cb);
982	SvREFCNT_dec (coro->invoke_av);	1071	SvREFCNT_dec (coro->invoke_av);
983		1072	}
984	coro_destruct_stacks (aTHX);
985	}	1073	}
986		1074
987	INLINE void	1075	INLINE void
988	free_coro_mortal (pTHX)	1076	free_coro_mortal (pTHX)
989	{	1077	{
…		…
1186	/* somebody or something will hit me for both perl_run and PL_restartop */	1274	/* somebody or something will hit me for both perl_run and PL_restartop */
1187	PL_restartop = PL_op;	1275	PL_restartop = PL_op;
1188	perl_run (PL_curinterp);	1276	perl_run (PL_curinterp);
1189	/*	1277	/*
1190	* Unfortunately, there is no way to get at the return values of the	1278	* Unfortunately, there is no way to get at the return values of the
1191	* coro body here, as perl_run destroys these	1279	* coro body here, as perl_run destroys these. Likewise, we cannot catch
		1280	* runtime errors here, as this is just a random interpreter, not a thread.
1192	*/	1281	*/
1193		1282
1194	/*	1283	/*
1195	* If perl-run returns we assume exit() was being called or the coro	1284	* If perl-run returns we assume exit() was being called or the coro
1196	* fell off the end, which seems to be the only valid (non-bug)	1285	* fell off the end, which seems to be the only valid (non-bug)
…		…
1357	/* TODO: throwing up here is considered harmful */	1446	/* TODO: throwing up here is considered harmful */
1358		1447
1359	if (expect_true (prev != next))	1448	if (expect_true (prev != next))
1360	{	1449	{
1361	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1450	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1362	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");	1451	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1363		1452
1364	if (expect_false (next->flags & CF_RUNNING))
1365	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1366
1367	if (expect_false (next->flags & CF_DESTROYED))	1453	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1368	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1454	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1369		1455
1370	#if !PERL_VERSION_ATLEAST (5,10,0)	1456	#if !PERL_VERSION_ATLEAST (5,10,0)
1371	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1457	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1372	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1458	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1373	#endif	1459	#endif
…		…
1461	coro_state_destroy (pTHX_ struct coro *coro)	1547	coro_state_destroy (pTHX_ struct coro *coro)
1462	{	1548	{
1463	if (coro->flags & CF_DESTROYED)	1549	if (coro->flags & CF_DESTROYED)
1464	return 0;	1550	return 0;
1465		1551
1466	if (coro->on_destroy)	1552	if (coro->on_destroy && !PL_dirty)
1467	coro->on_destroy (aTHX_ coro);	1553	coro->on_destroy (aTHX_ coro);
1468		1554
1469	coro->flags |= CF_DESTROYED;	1555	coro->flags |= CF_DESTROYED;
1470		1556
1471	if (coro->flags & CF_READY)	1557	if (coro->flags & CF_READY)
…		…
1479		1565
1480	if (coro->mainstack	1566	if (coro->mainstack
1481	&& coro->mainstack != main_mainstack	1567	&& coro->mainstack != main_mainstack
1482	&& coro->slot	1568	&& coro->slot
1483	&& !PL_dirty)	1569	&& !PL_dirty)
1484	{
1485	struct coro temp;
1486
1487	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1488
1489	save_perl (aTHX_ &temp);
1490	load_perl (aTHX_ coro);
1491
1492	coro_destruct_perl (aTHX_ coro);	1570	coro_destruct_perl (aTHX_ coro);
1493
1494	load_perl (aTHX_ &temp);
1495
1496	coro->slot = 0;
1497	}
1498		1571
1499	cctx_destroy (coro->cctx);	1572	cctx_destroy (coro->cctx);
1500	SvREFCNT_dec (coro->startcv);	1573	SvREFCNT_dec (coro->startcv);
1501	SvREFCNT_dec (coro->args);	1574	SvREFCNT_dec (coro->args);
1502	SvREFCNT_dec (CORO_THROW);	1575	SvREFCNT_dec (CORO_THROW);
…		…
1561		1634
1562	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1635	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1563	TRANSFER (ta, 1);	1636	TRANSFER (ta, 1);
1564	}	1637	}
1565		1638
1566	/*****************************************************************************/
1567	/* gensub: simple closure generation utility */
1568
1569	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1570
1571	/* create a closure from XS, returns a code reference */
1572	/* the arg can be accessed via GENSUB_ARG from the callback */
1573	/* the callback must use dXSARGS/XSRETURN */
1574	static SV *
1575	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1576	{
1577	CV *cv = (CV *)newSV (0);
1578
1579	sv_upgrade ((SV *)cv, SVt_PVCV);
1580
1581	CvANON_on (cv);
1582	CvISXSUB_on (cv);
1583	CvXSUB (cv) = xsub;
1584	GENSUB_ARG = arg;
1585
1586	return newRV_noinc ((SV *)cv);
1587	}
1588
1589	/** Coro ********************************************************************/	1639	/** Coro ********************************************************************/
1590		1640
1591	INLINE void	1641	INLINE void
1592	coro_enq (pTHX_ struct coro *coro)	1642	coro_enq (pTHX_ struct coro *coro)
1593	{	1643	{
1594	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1644	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1595	}
1596		1645
1597	INLINE SV *	1646	SvREFCNT_inc_NN (coro->hv);
		1647
		1648	coro->next_ready = 0;
		1649	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1650	ready [1] = coro;
		1651	}
		1652
		1653	INLINE struct coro *
1598	coro_deq (pTHX)	1654	coro_deq (pTHX)
1599	{	1655	{
1600	int prio;	1656	int prio;
1601		1657
1602	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1658	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1603	if (AvFILLp (coro_ready [prio]) >= 0)	1659	{
1604	return av_shift (coro_ready [prio]);	1660	struct coro **ready = coro_ready [prio];
		1661
		1662	if (ready [0])
		1663	{
		1664	struct coro *coro = ready [0];
		1665	ready [0] = coro->next_ready;
		1666	return coro;
		1667	}
		1668	}
1605		1669
1606	return 0;	1670	return 0;
		1671	}
		1672
		1673	static void
		1674	invoke_sv_ready_hook_helper (void)
		1675	{
		1676	dTHX;
		1677	dSP;
		1678
		1679	ENTER;
		1680	SAVETMPS;
		1681
		1682	PUSHMARK (SP);
		1683	PUTBACK;
		1684	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1685
		1686	FREETMPS;
		1687	LEAVE;
1607	}	1688	}
1608		1689
1609	static int	1690	static int
1610	api_ready (pTHX_ SV *coro_sv)	1691	api_ready (pTHX_ SV *coro_sv)
1611	{	1692	{
1612	struct coro *coro;
1613	SV *sv_hook;
1614	void (*xs_hook)(void);
1615
1616	coro = SvSTATE (coro_sv);	1693	struct coro *coro = SvSTATE (coro_sv);
1617		1694
1618	if (coro->flags & CF_READY)	1695	if (coro->flags & CF_READY)
1619	return 0;	1696	return 0;
1620		1697
1621	coro->flags |= CF_READY;	1698	coro->flags |= CF_READY;
1622		1699
1623	sv_hook = coro_nready ? 0 : coro_readyhook;
1624	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1625
1626	coro_enq (aTHX_ coro);	1700	coro_enq (aTHX_ coro);
1627	++coro_nready;
1628		1701
1629	if (sv_hook)	1702	if (!coro_nready++)
1630	{	1703	if (coroapi.readyhook)
1631	dSP;	1704	coroapi.readyhook ();
1632
1633	ENTER;
1634	SAVETMPS;
1635
1636	PUSHMARK (SP);
1637	PUTBACK;
1638	call_sv (sv_hook, G_VOID | G_DISCARD);
1639
1640	FREETMPS;
1641	LEAVE;
1642	}
1643
1644	if (xs_hook)
1645	xs_hook ();
1646		1705
1647	return 1;	1706	return 1;
1648	}	1707	}
1649		1708
1650	static int	1709	static int
…		…
1673	static void	1732	static void
1674	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1733	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1675	{	1734	{
1676	for (;;)	1735	for (;;)
1677	{	1736	{
1678	SV *next_sv = coro_deq (aTHX);	1737	struct coro *next = coro_deq (aTHX);
1679		1738
1680	if (expect_true (next_sv))	1739	if (expect_true (next))
1681	{	1740	{
1682	struct coro *next = SvSTATE_hv (next_sv);
1683
1684	/* cannot transfer to destroyed coros, skip and look for next */	1741	/* cannot transfer to destroyed coros, skip and look for next */
1685	if (expect_false (next->flags & CF_DESTROYED))	1742	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1686	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1743	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1687	else	1744	else
1688	{	1745	{
1689	next->flags &= ~CF_READY;	1746	next->flags &= ~CF_READY;
1690	--coro_nready;	1747	--coro_nready;
1691		1748
…		…
1703	api_ready (aTHX_ SvRV (sv_idle));	1760	api_ready (aTHX_ SvRV (sv_idle));
1704	--coro_nready;	1761	--coro_nready;
1705	}	1762	}
1706	else	1763	else
1707	{	1764	{
		1765	/* TODO: deprecated, remove, cannot work reliably *//*D*/
1708	dSP;	1766	dSP;
1709		1767
1710	ENTER;	1768	ENTER;
1711	SAVETMPS;	1769	SAVETMPS;
1712		1770
…		…
1858	{	1916	{
1859	int i;	1917	int i;
1860	HV *hv = (HV *)SvRV (coro_current);	1918	HV *hv = (HV *)SvRV (coro_current);
1861	AV *av = newAV ();	1919	AV *av = newAV ();
1862		1920
		1921	/* items are actually not so common, so optimise for this case */
		1922	if (items)
		1923	{
1863	av_extend (av, items - 1);	1924	av_extend (av, items - 1);
		1925
1864	for (i = 0; i < items; ++i)	1926	for (i = 0; i < items; ++i)
1865	av_push (av, SvREFCNT_inc_NN (arg [i]));	1927	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1928	}
1866		1929
1867	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);	1930	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1868		1931
1869	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	1932	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1870	api_ready (aTHX_ sv_manager);	1933	api_ready (aTHX_ sv_manager);
…		…
1960		2023
1961	static void	2024	static void
1962	coro_rouse_callback (pTHX_ CV *cv)	2025	coro_rouse_callback (pTHX_ CV *cv)
1963	{	2026	{
1964	dXSARGS;	2027	dXSARGS;
1965	SV *data = (SV *)GENSUB_ARG;	2028	SV *data = (SV *)S_GENSUB_ARG;
1966		2029
1967	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2030	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1968	{	2031	{
1969	/* first call, set args */	2032	/* first call, set args */
		2033	SV *coro = SvRV (data);
1970	AV *av = newAV ();	2034	AV *av = newAV ();
1971	SV *coro = SvRV (data);
1972		2035
1973	SvRV_set (data, (SV *)av);	2036	SvRV_set (data, (SV *)av);
1974	api_ready (aTHX_ coro);
1975	SvREFCNT_dec (coro);
1976		2037
1977	/* better take a full copy of the arguments */	2038	/* better take a full copy of the arguments */
1978	while (items--)	2039	while (items--)
1979	av_store (av, items, newSVsv (ST (items)));	2040	av_store (av, items, newSVsv (ST (items)));
		2041
		2042	api_ready (aTHX_ coro);
		2043	SvREFCNT_dec (coro);
1980	}	2044	}
1981		2045
1982	XSRETURN_EMPTY;	2046	XSRETURN_EMPTY;
1983	}	2047	}
1984		2048
…		…
2001		2065
2002	EXTEND (SP, AvFILLp (av) + 1);	2066	EXTEND (SP, AvFILLp (av) + 1);
2003	for (i = 0; i <= AvFILLp (av); ++i)	2067	for (i = 0; i <= AvFILLp (av); ++i)
2004	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2068	PUSHs (sv_2mortal (AvARRAY (av)[i]));
2005		2069
2006	/* we have stolen the elements, so ste length to zero and free */	2070	/* we have stolen the elements, so set length to zero and free */
2007	AvFILLp (av) = -1;	2071	AvFILLp (av) = -1;
2008	av_undef (av);	2072	av_undef (av);
2009		2073
2010	PUTBACK;	2074	PUTBACK;
2011	}	2075	}
…		…
2035	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2099	|| SvTYPE (SvRV (cb)) != SVt_PVCV
2036	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2100	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2037	croak ("Coro::rouse_wait called with illegal callback argument,");	2101	croak ("Coro::rouse_wait called with illegal callback argument,");
2038		2102
2039	{	2103	{
2040	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2104	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2041	SV *data = (SV *)GENSUB_ARG;	2105	SV *data = (SV *)S_GENSUB_ARG;
2042		2106
2043	frame->data = (void *)data;	2107	frame->data = (void *)data;
2044	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2108	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2045	frame->check = slf_check_rouse_wait;	2109	frame->check = slf_check_rouse_wait;
2046	}	2110	}
…		…
2050	coro_new_rouse_cb (pTHX)	2114	coro_new_rouse_cb (pTHX)
2051	{	2115	{
2052	HV *hv = (HV *)SvRV (coro_current);	2116	HV *hv = (HV *)SvRV (coro_current);
2053	struct coro *coro = SvSTATE_hv (hv);	2117	struct coro *coro = SvSTATE_hv (hv);
2054	SV *data = newRV_inc ((SV *)hv);	2118	SV *data = newRV_inc ((SV *)hv);
2055	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2119	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2056		2120
2057	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2121	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2058	SvREFCNT_dec (data); /* magicext increases the refcount */	2122	SvREFCNT_dec (data); /* magicext increases the refcount */
2059		2123
2060	SvREFCNT_dec (coro->rouse_cb);	2124	SvREFCNT_dec (coro->rouse_cb);
…		…
2267	if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB]	2331	if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB]
2268	&& PL_op->op_ppaddr != pp_slf)	2332	&& PL_op->op_ppaddr != pp_slf)
2269	croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught");	2333	croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught");
2270		2334
2271	CvFLAGS (cv) |= CVf_SLF;	2335	CvFLAGS (cv) |= CVf_SLF;
		2336	CvNODEBUG_on (cv);
2272	CvXSUBANY (cv).any_ptr = (void *)init_cb;	2337	CvXSUBANY (cv).any_ptr = (void *)init_cb;
2273	slf_cv = cv;	2338	slf_cv = cv;
2274		2339
2275	/* we patch the op, and then re-run the whole call */	2340	/* we patch the op, and then re-run the whole call */
2276	/* we have to put the same argument on the stack for this to work */	2341	/* we have to put the same argument on the stack for this to work */
…		…
2301		2366
2302	PL_op->op_ppaddr = pp_slf;	2367	PL_op->op_ppaddr = pp_slf;
2303	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2368	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2304		2369
2305	PL_op = (OP *)&slf_restore;	2370	PL_op = (OP *)&slf_restore;
		2371	}
		2372
		2373	/*****************************************************************************/
		2374	/* dynamic wind */
		2375
		2376	static void
		2377	on_enterleave_call (pTHX_ SV *cb)
		2378	{
		2379	dSP;
		2380
		2381	PUSHSTACK;
		2382
		2383	PUSHMARK (SP);
		2384	PUTBACK;
		2385	call_sv (cb, G_VOID | G_DISCARD);
		2386	SPAGAIN;
		2387
		2388	POPSTACK;
		2389	}
		2390
		2391	static SV *
		2392	coro_avp_pop_and_free (pTHX_ AV **avp)
		2393	{
		2394	AV *av = *avp;
		2395	SV *res = av_pop (av);
		2396
		2397	if (AvFILLp (av) < 0)
		2398	{
		2399	*avp = 0;
		2400	SvREFCNT_dec (av);
		2401	}
		2402
		2403	return res;
		2404	}
		2405
		2406	static void
		2407	coro_pop_on_enter (pTHX_ void *coro)
		2408	{
		2409	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2410	SvREFCNT_dec (cb);
		2411	}
		2412
		2413	static void
		2414	coro_pop_on_leave (pTHX_ void *coro)
		2415	{
		2416	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2417	on_enterleave_call (aTHX_ sv_2mortal (cb));
2306	}	2418	}
2307		2419
2308	/*****************************************************************************/	2420	/*****************************************************************************/
2309	/* PerlIO::cede */	2421	/* PerlIO::cede */
2310		2422
…		…
2384	/* Coro::Semaphore & Coro::Signal */	2496	/* Coro::Semaphore & Coro::Signal */
2385		2497
2386	static SV *	2498	static SV *
2387	coro_waitarray_new (pTHX_ int count)	2499	coro_waitarray_new (pTHX_ int count)
2388	{	2500	{
2389	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2501	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2390	AV *av = newAV ();	2502	AV *av = newAV ();
2391	SV **ary;	2503	SV **ary;
2392		2504
2393	/* unfortunately, building manually saves memory */	2505	/* unfortunately, building manually saves memory */
2394	Newx (ary, 2, SV *);	2506	Newx (ary, 2, SV *);
…		…
2536	{	2648	{
2537	if (items >= 2)	2649	if (items >= 2)
2538	{	2650	{
2539	/* callback form */	2651	/* callback form */
2540	AV *av = (AV *)SvRV (arg [0]);	2652	AV *av = (AV *)SvRV (arg [0]);
2541	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2653	SV *cb_cv = s_get_cv_croak (arg [1]);
2542		2654
2543	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2655	av_push (av, SvREFCNT_inc_NN (cb_cv));
2544		2656
2545	if (SvIVX (AvARRAY (av)[0]) > 0)	2657	if (SvIVX (AvARRAY (av)[0]) > 0)
2546	coro_semaphore_adjust (aTHX_ av, 0);	2658	coro_semaphore_adjust (aTHX_ av, 0);
2547		2659
2548	frame->prepare = prepare_nop;	2660	frame->prepare = prepare_nop;
…		…
2572	AvARRAY (av)[0] = AvARRAY (av)[1];	2684	AvARRAY (av)[0] = AvARRAY (av)[1];
2573	AvARRAY (av)[1] = cb;	2685	AvARRAY (av)[1] = cb;
2574		2686
2575	cb = av_shift (av);	2687	cb = av_shift (av);
2576		2688
		2689	if (SvTYPE (cb) == SVt_PVCV)
		2690	{
		2691	dSP;
		2692	PUSHMARK (SP);
		2693	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2694	PUTBACK;
		2695	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2696	}
		2697	else
		2698	{
2577	api_ready (aTHX_ cb);	2699	api_ready (aTHX_ cb);
2578	sv_setiv (cb, 0); /* signal waiter */	2700	sv_setiv (cb, 0); /* signal waiter */
		2701	}
		2702
2579	SvREFCNT_dec (cb);	2703	SvREFCNT_dec (cb);
2580		2704
2581	--count;	2705	--count;
2582	}	2706	}
2583	}	2707	}
…		…
2592	static void	2716	static void
2593	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2717	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2594	{	2718	{
2595	AV *av = (AV *)SvRV (arg [0]);	2719	AV *av = (AV *)SvRV (arg [0]);
2596		2720
		2721	if (items >= 2)
		2722	{
		2723	SV *cb_cv = s_get_cv_croak (arg [1]);
		2724	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2725
2597	if (SvIVX (AvARRAY (av)[0]))	2726	if (SvIVX (AvARRAY (av)[0]))
		2727	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
		2728
		2729	frame->prepare = prepare_nop;
		2730	frame->check = slf_check_nop;
		2731	}
		2732	else if (SvIVX (AvARRAY (av)[0]))
2598	{	2733	{
2599	SvIVX (AvARRAY (av)[0]) = 0;	2734	SvIVX (AvARRAY (av)[0]) = 0;
2600	frame->prepare = prepare_nop;	2735	frame->prepare = prepare_nop;
2601	frame->check = slf_check_nop;	2736	frame->check = slf_check_nop;
2602	}	2737	}
2603	else	2738	else
2604	{	2739	{
2605	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2740	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2606		2741
2607	av_push (av, waiter);	2742	av_push (av, waiter);
2608		2743
2609	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2744	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2610	frame->prepare = prepare_schedule;	2745	frame->prepare = prepare_schedule;
…		…
2628		2763
2629	static void	2764	static void
2630	coro_aio_callback (pTHX_ CV *cv)	2765	coro_aio_callback (pTHX_ CV *cv)
2631	{	2766	{
2632	dXSARGS;	2767	dXSARGS;
2633	AV *state = (AV *)GENSUB_ARG;	2768	AV *state = (AV *)S_GENSUB_ARG;
2634	SV *coro = av_pop (state);	2769	SV *coro = av_pop (state);
2635	SV *data_sv = newSV (sizeof (struct io_state));	2770	SV *data_sv = newSV (sizeof (struct io_state));
2636		2771
2637	av_extend (state, items - 1);	2772	av_extend (state, items - 1);
2638		2773
…		…
2752		2887
2753	for (i = 0; i < items; ++i)	2888	for (i = 0; i < items; ++i)
2754	PUSHs (arg [i]);	2889	PUSHs (arg [i]);
2755		2890
2756	/* now push the callback closure */	2891	/* now push the callback closure */
2757	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	2892	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2758		2893
2759	/* now call the AIO function - we assume our request is uncancelable */	2894	/* now call the AIO function - we assume our request is uncancelable */
2760	PUTBACK;	2895	PUTBACK;
2761	call_sv ((SV *)req, G_VOID | G_DISCARD);	2896	call_sv ((SV *)req, G_VOID | G_DISCARD);
2762	}	2897	}
…		…
2780	/*****************************************************************************/	2915	/*****************************************************************************/
2781		2916
2782	#if CORO_CLONE	2917	#if CORO_CLONE
2783	# include "clone.c"	2918	# include "clone.c"
2784	#endif	2919	#endif
		2920
		2921	/*****************************************************************************/
		2922
		2923	static SV *
		2924	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		2925	{
		2926	SV *coro_sv;
		2927	struct coro *coro;
		2928	MAGIC *mg;
		2929	HV *hv;
		2930	SV *cb;
		2931	int i;
		2932
		2933	if (argc > 0)
		2934	{
		2935	cb = s_get_cv_croak (argv [0]);
		2936
		2937	if (!is_coro)
		2938	{
		2939	if (CvISXSUB (cb))
		2940	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2941
		2942	if (!CvROOT (cb))
		2943	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2944	}
		2945	}
		2946
		2947	Newz (0, coro, 1, struct coro);
		2948	coro->args = newAV ();
		2949	coro->flags = CF_NEW;
		2950
		2951	if (coro_first) coro_first->prev = coro;
		2952	coro->next = coro_first;
		2953	coro_first = coro;
		2954
		2955	coro->hv = hv = newHV ();
		2956	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		2957	mg->mg_flags |= MGf_DUP;
		2958	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		2959
		2960	if (argc > 0)
		2961	{
		2962	av_extend (coro->args, argc + is_coro - 1);
		2963
		2964	if (is_coro)
		2965	{
		2966	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2967	cb = (SV *)cv_coro_run;
		2968	}
		2969
		2970	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2971
		2972	for (i = 1; i < argc; i++)
		2973	av_push (coro->args, newSVsv (argv [i]));
		2974	}
		2975
		2976	return coro_sv;
		2977	}
2785		2978
2786	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2979	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2787		2980
2788	PROTOTYPES: DISABLE	2981	PROTOTYPES: DISABLE
2789		2982
…		…
2849		3042
2850	if (!svp) croak ("Time::HiRes is required");	3043	if (!svp) croak ("Time::HiRes is required");
2851	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	3044	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2852		3045
2853	nvtime = INT2PTR (double (*)(), SvIV (*svp));	3046	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		3047
		3048	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		3049	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2854	}	3050	}
2855		3051
2856	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	3052	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2857	}	3053	}
2858		3054
2859	SV *	3055	SV *
2860	new (char *klass, ...)	3056	new (SV *klass, ...)
2861	ALIAS:	3057	ALIAS:
2862	Coro::new = 1	3058	Coro::new = 1
2863	CODE:	3059	CODE:
2864	{	3060	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2865	struct coro *coro;	3061	OUTPUT:
2866	MAGIC *mg;
2867	HV *hv;
2868	CV *cb;
2869	int i;
2870
2871	if (items > 1)
2872	{
2873	cb = coro_sv_2cv (aTHX_ ST (1));
2874
2875	if (!ix)
2876	{
2877	if (CvISXSUB (cb))
2878	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2879
2880	if (!CvROOT (cb))
2881	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2882	}
2883	}
2884
2885	Newz (0, coro, 1, struct coro);
2886	coro->args = newAV ();
2887	coro->flags = CF_NEW;
2888
2889	if (coro_first) coro_first->prev = coro;
2890	coro->next = coro_first;
2891	coro_first = coro;
2892
2893	coro->hv = hv = newHV ();
2894	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2895	mg->mg_flags |= MGf_DUP;
2896	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2897
2898	if (items > 1)
2899	{
2900	av_extend (coro->args, items - 1 + ix - 1);
2901
2902	if (ix)
2903	{
2904	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2905	cb = cv_coro_run;
2906	}
2907
2908	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2909
2910	for (i = 2; i < items; i++)
2911	av_push (coro->args, newSVsv (ST (i)));
2912	}
2913	}
2914	OUTPUT:
2915	RETVAL	3062	RETVAL
2916		3063
2917	void	3064	void
2918	transfer (...)	3065	transfer (...)
2919	PROTOTYPE: $$	3066	PROTOTYPE: $$
…		…
3008	eval = 1	3155	eval = 1
3009	CODE:	3156	CODE:
3010	{	3157	{
3011	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3158	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3012	{	3159	{
3013	struct coro temp;	3160	struct coro *current = SvSTATE_current;
3014		3161
3015	if (!(coro->flags & CF_RUNNING))	3162	if (current != coro)
3016	{	3163	{
3017	PUTBACK;	3164	PUTBACK;
3018	save_perl (aTHX_ &temp);	3165	save_perl (aTHX_ current);
3019	load_perl (aTHX_ coro);	3166	load_perl (aTHX_ coro);
		3167	SPAGAIN;
3020	}	3168	}
3021		3169
3022	{
3023	dSP;
3024	ENTER;
3025	SAVETMPS;
3026	PUTBACK;
3027	PUSHSTACK;	3170	PUSHSTACK;
		3171
3028	PUSHMARK (SP);	3172	PUSHMARK (SP);
		3173	PUTBACK;
3029		3174
3030	if (ix)	3175	if (ix)
3031	eval_sv (coderef, 0);	3176	eval_sv (coderef, 0);
3032	else	3177	else
3033	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3178	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3034		3179
3035	POPSTACK;	3180	POPSTACK;
3036	SPAGAIN;	3181	SPAGAIN;
3037	FREETMPS;
3038	LEAVE;
3039	PUTBACK;
3040	}
3041		3182
3042	if (!(coro->flags & CF_RUNNING))	3183	if (current != coro)
3043	{	3184	{
		3185	PUTBACK;
3044	save_perl (aTHX_ coro);	3186	save_perl (aTHX_ coro);
3045	load_perl (aTHX_ &temp);	3187	load_perl (aTHX_ current);
3046	SPAGAIN;	3188	SPAGAIN;
3047	}	3189	}
3048	}	3190	}
3049	}	3191	}
3050		3192
…		…
3054	ALIAS:	3196	ALIAS:
3055	is_ready = CF_READY	3197	is_ready = CF_READY
3056	is_running = CF_RUNNING	3198	is_running = CF_RUNNING
3057	is_new = CF_NEW	3199	is_new = CF_NEW
3058	is_destroyed = CF_DESTROYED	3200	is_destroyed = CF_DESTROYED
		3201	is_suspended = CF_SUSPENDED
3059	CODE:	3202	CODE:
3060	RETVAL = boolSV (coro->flags & ix);	3203	RETVAL = boolSV (coro->flags & ix);
3061	OUTPUT:	3204	OUTPUT:
3062	RETVAL	3205	RETVAL
3063		3206
…		…
3067	CODE:	3210	CODE:
3068	{	3211	{
3069	struct coro *current = SvSTATE_current;	3212	struct coro *current = SvSTATE_current;
3070	SV **throwp = self == current ? &CORO_THROW : &self->except;	3213	SV **throwp = self == current ? &CORO_THROW : &self->except;
3071	SvREFCNT_dec (*throwp);	3214	SvREFCNT_dec (*throwp);
		3215	SvGETMAGIC (throw);
3072	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3216	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
3073	}	3217	}
3074		3218
3075	void	3219	void
3076	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3220	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
…		…
3128	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3272	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3129		3273
3130	SV *tmp = *src; *src = *dst; *dst = tmp;	3274	SV *tmp = *src; *src = *dst; *dst = tmp;
3131	}	3275	}
3132		3276
		3277	void
		3278	cancel (Coro::State self)
		3279	CODE:
		3280	coro_state_destroy (aTHX_ self);
		3281	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3282
		3283
		3284	SV *
		3285	enable_times (int enabled = enable_times)
		3286	CODE:
		3287	{
		3288	RETVAL = boolSV (enable_times);
		3289
		3290	if (enabled != enable_times)
		3291	{
		3292	enable_times = enabled;
		3293
		3294	coro_times_update ();
		3295	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3296	}
		3297	}
		3298	OUTPUT:
		3299	RETVAL
		3300
		3301	void
		3302	times (Coro::State self)
		3303	PPCODE:
		3304	{
		3305	struct coro *current = SvSTATE (coro_current);
		3306
		3307	if (expect_false (current == self))
		3308	{
		3309	coro_times_update ();
		3310	coro_times_add (SvSTATE (coro_current));
		3311	}
		3312
		3313	EXTEND (SP, 2);
		3314	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3315	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3316
		3317	if (expect_false (current == self))
		3318	coro_times_sub (SvSTATE (coro_current));
		3319	}
3133		3320
3134	MODULE = Coro::State PACKAGE = Coro	3321	MODULE = Coro::State PACKAGE = Coro
3135		3322
3136	BOOT:	3323	BOOT:
3137	{	3324	{
3138	int i;
3139
3140	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3325	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3141	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3326	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3142	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);	3327	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3143	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3328	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3144	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3329	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
…		…
3148	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);	3333	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3149		3334
3150	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3335	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3151	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3336	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3152	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3337	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3153	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3338	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3154		3339
3155	coro_stash = gv_stashpv ("Coro", TRUE);	3340	coro_stash = gv_stashpv ("Coro", TRUE);
3156		3341
3157	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3342	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3158	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3343	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3159	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3344	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3160	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3345	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3161	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3346	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3162	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3347	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3163
3164	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3165	coro_ready[i] = newAV ();
3166		3348
3167	{	3349	{
3168	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3350	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3169		3351
3170	coroapi.schedule = api_schedule;	3352	coroapi.schedule = api_schedule;
…		…
3180	sv_setiv (sv, (IV)&coroapi);	3362	sv_setiv (sv, (IV)&coroapi);
3181	SvREADONLY_on (sv);	3363	SvREADONLY_on (sv);
3182	}	3364	}
3183	}	3365	}
3184		3366
		3367	SV *
		3368	async (...)
		3369	PROTOTYPE: &@
		3370	CODE:
		3371	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3372	api_ready (aTHX_ RETVAL);
		3373	OUTPUT:
		3374	RETVAL
		3375
3185	void	3376	void
3186	terminate (...)	3377	terminate (...)
3187	CODE:	3378	CODE:
3188	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3379	CORO_EXECUTE_SLF_XS (slf_init_terminate);
3189		3380
…		…
3209		3400
3210	void	3401	void
3211	cede_notself (...)	3402	cede_notself (...)
3212	CODE:	3403	CODE:
3213	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3404	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3214
3215	void
3216	_cancel (Coro::State self)
3217	CODE:
3218	coro_state_destroy (aTHX_ self);
3219	coro_call_on_destroy (aTHX_ self);
3220		3405
3221	void	3406	void
3222	_set_current (SV *current)	3407	_set_current (SV *current)
3223	PROTOTYPE: $	3408	PROTOTYPE: $
3224	CODE:	3409	CODE:
…		…
3228	void	3413	void
3229	_set_readyhook (SV *hook)	3414	_set_readyhook (SV *hook)
3230	PROTOTYPE: $	3415	PROTOTYPE: $
3231	CODE:	3416	CODE:
3232	SvREFCNT_dec (coro_readyhook);	3417	SvREFCNT_dec (coro_readyhook);
		3418	SvGETMAGIC (hook);
		3419	if (SvOK (hook))
		3420	{
3233	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3421	coro_readyhook = newSVsv (hook);
		3422	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3423	}
		3424	else
		3425	{
		3426	coro_readyhook = 0;
		3427	CORO_READYHOOK = 0;
		3428	}
3234		3429
3235	int	3430	int
3236	prio (Coro::State coro, int newprio = 0)	3431	prio (Coro::State coro, int newprio = 0)
3237	PROTOTYPE: $;$	3432	PROTOTYPE: $;$
3238	ALIAS:	3433	ALIAS:
…		…
3244	if (items > 1)	3439	if (items > 1)
3245	{	3440	{
3246	if (ix)	3441	if (ix)
3247	newprio = coro->prio - newprio;	3442	newprio = coro->prio - newprio;
3248		3443
3249	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3444	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3250	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3445	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3251		3446
3252	coro->prio = newprio;	3447	coro->prio = newprio;
3253	}	3448	}
3254	}	3449	}
3255	OUTPUT:	3450	OUTPUT:
…		…
3270	RETVAL = coro_nready;	3465	RETVAL = coro_nready;
3271	OUTPUT:	3466	OUTPUT:
3272	RETVAL	3467	RETVAL
3273		3468
3274	void	3469	void
		3470	suspend (Coro::State self)
		3471	PROTOTYPE: $
		3472	CODE:
		3473	self->flags |= CF_SUSPENDED;
		3474
		3475	void
		3476	resume (Coro::State self)
		3477	PROTOTYPE: $
		3478	CODE:
		3479	self->flags &= ~CF_SUSPENDED;
		3480
		3481	void
3275	_pool_handler (...)	3482	_pool_handler (...)
3276	CODE:	3483	CODE:
3277	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3484	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3278		3485
3279	void	3486	void
…		…
3290	for (i = 1; i < items; ++i)	3497	for (i = 1; i < items; ++i)
3291	av_push (av, SvREFCNT_inc_NN (ST (i)));	3498	av_push (av, SvREFCNT_inc_NN (ST (i)));
3292		3499
3293	if ((SV *)hv == &PL_sv_undef)	3500	if ((SV *)hv == &PL_sv_undef)
3294	{	3501	{
3295	PUSHMARK (SP);	3502	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3296	EXTEND (SP, 2);
3297	PUSHs (sv_Coro);
3298	PUSHs ((SV *)cv_pool_handler);
3299	PUTBACK;
3300	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3301	SPAGAIN;
3302
3303	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3503	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3504	SvREFCNT_dec (sv);
3304	}	3505	}
3305		3506
3306	{	3507	{
3307	struct coro *coro = SvSTATE_hv (hv);	3508	struct coro *coro = SvSTATE_hv (hv);
3308		3509
…		…
3332	rouse_wait (...)	3533	rouse_wait (...)
3333	PROTOTYPE: ;$	3534	PROTOTYPE: ;$
3334	PPCODE:	3535	PPCODE:
3335	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3536	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3336		3537
		3538	void
		3539	on_enter (SV *block)
		3540	ALIAS:
		3541	on_leave = 1
		3542	PROTOTYPE: &
		3543	CODE:
		3544	{
		3545	struct coro *coro = SvSTATE_current;
		3546	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3547
		3548	block = s_get_cv_croak (block);
		3549
		3550	if (!*avp)
		3551	*avp = newAV ();
		3552
		3553	av_push (*avp, SvREFCNT_inc (block));
		3554
		3555	if (!ix)
		3556	on_enterleave_call (aTHX_ block);
		3557
		3558	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3559	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3560	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3561	}
		3562
3337		3563
3338	MODULE = Coro::State PACKAGE = PerlIO::cede	3564	MODULE = Coro::State PACKAGE = PerlIO::cede
3339		3565
3340	BOOT:	3566	BOOT:
3341	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3567	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3344	MODULE = Coro::State PACKAGE = Coro::Semaphore	3570	MODULE = Coro::State PACKAGE = Coro::Semaphore
3345		3571
3346	SV *	3572	SV *
3347	new (SV *klass, SV *count = 0)	3573	new (SV *klass, SV *count = 0)
3348	CODE:	3574	CODE:
		3575	{
		3576	int semcnt = 1;
		3577
		3578	if (count)
		3579	{
		3580	SvGETMAGIC (count);
		3581
		3582	if (SvOK (count))
		3583	semcnt = SvIV (count);
		3584	}
		3585
3349	RETVAL = sv_bless (	3586	RETVAL = sv_bless (
3350	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3587	coro_waitarray_new (aTHX_ semcnt),
3351	GvSTASH (CvGV (cv))	3588	GvSTASH (CvGV (cv))
3352	);	3589	);
		3590	}
3353	OUTPUT:	3591	OUTPUT:
3354	RETVAL	3592	RETVAL
3355		3593
3356	# helper for Coro::Channel	3594	# helper for Coro::Channel and others
3357	SV *	3595	SV *
3358	_alloc (int count)	3596	_alloc (int count)
3359	CODE:	3597	CODE:
3360	RETVAL = coro_waitarray_new (aTHX_ count);	3598	RETVAL = coro_waitarray_new (aTHX_ count);
3361	OUTPUT:	3599	OUTPUT:
…		…
3419	for (i = 1; i <= wcount; ++i)	3657	for (i = 1; i <= wcount; ++i)
3420	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3658	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3421	}	3659	}
3422	}	3660	}
3423		3661
		3662	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3663
		3664	void
		3665	_may_delete (SV *sem, int count, int extra_refs)
		3666	PPCODE:
		3667	{
		3668	AV *av = (AV *)SvRV (sem);
		3669
		3670	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3671	&& AvFILLp (av) == 0 /* no waiters, just count */
		3672	&& SvIV (AvARRAY (av)[0]) == count)
		3673	XSRETURN_YES;
		3674
		3675	XSRETURN_NO;
		3676	}
		3677
3424	MODULE = Coro::State PACKAGE = Coro::Signal	3678	MODULE = Coro::State PACKAGE = Coro::Signal
3425		3679
3426	SV *	3680	SV *
3427	new (SV *klass)	3681	new (SV *klass)
3428	CODE:	3682	CODE:
…		…
3499		3753
3500	void	3754	void
3501	_register (char *target, char *proto, SV *req)	3755	_register (char *target, char *proto, SV *req)
3502	CODE:	3756	CODE:
3503	{	3757	{
3504	CV *req_cv = coro_sv_2cv (aTHX_ req);	3758	SV *req_cv = s_get_cv_croak (req);
3505	/* newXSproto doesn't return the CV on 5.8 */	3759	/* newXSproto doesn't return the CV on 5.8 */
3506	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3760	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3507	sv_setpv ((SV *)slf_cv, proto);	3761	sv_setpv ((SV *)slf_cv, proto);
3508	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3762	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3509	}	3763	}
3510		3764
		3765	MODULE = Coro::State PACKAGE = Coro::Select
		3766
		3767	void
		3768	patch_pp_sselect ()
		3769	CODE:
		3770	if (!coro_old_pp_sselect)
		3771	{
		3772	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3773	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3774	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3775	}
		3776
		3777	void
		3778	unpatch_pp_sselect ()
		3779	CODE:
		3780	if (coro_old_pp_sselect)
		3781	{
		3782	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3783	coro_old_pp_sselect = 0;
		3784	}
		3785
		3786

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