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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.336 by root, Thu Dec 4 17:29:40 2008 UTC vs.
Revision 1.369 by root, Thu Aug 13 02:48:32 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 (aTHX)
		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;
940	}
941		1002
		1003	if (expect_false (enable_times))
		1004	{
		1005	coro_times_update ();
		1006	coro_times_sub (coro);
		1007	}
		1008	}
		1009
942	static void	1010	static void
943	coro_destruct_perl (pTHX_ struct coro *coro)	1011	coro_unwind_stacks (pTHX)
944	{	1012	{
945	if (!IN_DESTRUCT)	1013	if (!IN_DESTRUCT)
946	{	1014	{
947	/* restore all saved variables and stuff */	1015	/* restore all saved variables and stuff */
948	LEAVE_SCOPE (0);	1016	LEAVE_SCOPE (0);
…		…
956	POPSTACK_TO (PL_mainstack);	1024	POPSTACK_TO (PL_mainstack);
957		1025
958	/* unwind main stack */	1026	/* unwind main stack */
959	dounwind (-1);	1027	dounwind (-1);
960	}	1028	}
		1029	}
961		1030
962	SvREFCNT_dec (GvSV (PL_defgv));	1031	static void
963	SvREFCNT_dec (GvAV (PL_defgv));	1032	coro_destruct_perl (pTHX_ struct coro *coro)
964	SvREFCNT_dec (GvSV (PL_errgv));	1033	{
965	SvREFCNT_dec (PL_defoutgv);	1034	SV *svf [9];
966	SvREFCNT_dec (PL_rs);
967	SvREFCNT_dec (GvSV (irsgv));
968	SvREFCNT_dec (GvHV (PL_hintgv));
969		1035
970	SvREFCNT_dec (PL_diehook);
971	SvREFCNT_dec (PL_warnhook);
972		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
		1044	coro_unwind_stacks (aTHX);
		1045	coro_destruct_stacks (aTHX);
		1046
		1047	// now save some sv's to be free'd later
		1048	svf [0] = GvSV (PL_defgv);
		1049	svf [1] = (SV *)GvAV (PL_defgv);
		1050	svf [2] = GvSV (PL_errgv);
		1051	svf [3] = (SV *)PL_defoutgv;
		1052	svf [4] = PL_rs;
		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));
		1058
		1059	load_perl (aTHX_ current);
		1060	}
		1061
		1062	{
		1063	unsigned int i;
		1064
		1065	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1066	SvREFCNT_dec (svf [i]);
		1067
973	SvREFCNT_dec (coro->saved_deffh);	1068	SvREFCNT_dec (coro->saved_deffh);
974	SvREFCNT_dec (coro->rouse_cb);	1069	SvREFCNT_dec (coro->rouse_cb);
975	SvREFCNT_dec (coro->invoke_cb);	1070	SvREFCNT_dec (coro->invoke_cb);
976	SvREFCNT_dec (coro->invoke_av);	1071	SvREFCNT_dec (coro->invoke_av);
977		1072	}
978	coro_destruct_stacks (aTHX);
979	}	1073	}
980		1074
981	INLINE void	1075	INLINE void
982	free_coro_mortal (pTHX)	1076	free_coro_mortal (pTHX)
983	{	1077	{
…		…
1180	/* 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 */
1181	PL_restartop = PL_op;	1275	PL_restartop = PL_op;
1182	perl_run (PL_curinterp);	1276	perl_run (PL_curinterp);
1183	/*	1277	/*
1184	* 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
1185	* 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.
1186	*/	1281	*/
1187		1282
1188	/*	1283	/*
1189	* 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
1190	* 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)
…		…
1351	/* TODO: throwing up here is considered harmful */	1446	/* TODO: throwing up here is considered harmful */
1352		1447
1353	if (expect_true (prev != next))	1448	if (expect_true (prev != next))
1354	{	1449	{
1355	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1450	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1356	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,");
1357		1452
1358	if (expect_false (next->flags & CF_RUNNING))
1359	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1360
1361	if (expect_false (next->flags & CF_DESTROYED))	1453	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1362	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,");
1363		1455
1364	#if !PERL_VERSION_ATLEAST (5,10,0)	1456	#if !PERL_VERSION_ATLEAST (5,10,0)
1365	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1457	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1366	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,");
1367	#endif	1459	#endif
…		…
1455	coro_state_destroy (pTHX_ struct coro *coro)	1547	coro_state_destroy (pTHX_ struct coro *coro)
1456	{	1548	{
1457	if (coro->flags & CF_DESTROYED)	1549	if (coro->flags & CF_DESTROYED)
1458	return 0;	1550	return 0;
1459		1551
1460	if (coro->on_destroy)	1552	if (coro->on_destroy && !PL_dirty)
1461	coro->on_destroy (aTHX_ coro);	1553	coro->on_destroy (aTHX_ coro);
1462		1554
1463	coro->flags |= CF_DESTROYED;	1555	coro->flags |= CF_DESTROYED;
1464		1556
1465	if (coro->flags & CF_READY)	1557	if (coro->flags & CF_READY)
…		…
1473		1565
1474	if (coro->mainstack	1566	if (coro->mainstack
1475	&& coro->mainstack != main_mainstack	1567	&& coro->mainstack != main_mainstack
1476	&& coro->slot	1568	&& coro->slot
1477	&& !PL_dirty)	1569	&& !PL_dirty)
1478	{
1479	struct coro temp;
1480
1481	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1482
1483	save_perl (aTHX_ &temp);
1484	load_perl (aTHX_ coro);
1485
1486	coro_destruct_perl (aTHX_ coro);	1570	coro_destruct_perl (aTHX_ coro);
1487
1488	load_perl (aTHX_ &temp);
1489
1490	coro->slot = 0;
1491	}
1492		1571
1493	cctx_destroy (coro->cctx);	1572	cctx_destroy (coro->cctx);
1494	SvREFCNT_dec (coro->startcv);	1573	SvREFCNT_dec (coro->startcv);
1495	SvREFCNT_dec (coro->args);	1574	SvREFCNT_dec (coro->args);
1496	SvREFCNT_dec (CORO_THROW);	1575	SvREFCNT_dec (CORO_THROW);
…		…
1555		1634
1556	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1635	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1557	TRANSFER (ta, 1);	1636	TRANSFER (ta, 1);
1558	}	1637	}
1559		1638
1560	/*****************************************************************************/
1561	/* gensub: simple closure generation utility */
1562
1563	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1564
1565	/* create a closure from XS, returns a code reference */
1566	/* the arg can be accessed via GENSUB_ARG from the callback */
1567	/* the callback must use dXSARGS/XSRETURN */
1568	static SV *
1569	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1570	{
1571	CV *cv = (CV *)newSV (0);
1572
1573	sv_upgrade ((SV *)cv, SVt_PVCV);
1574
1575	CvANON_on (cv);
1576	CvISXSUB_on (cv);
1577	CvXSUB (cv) = xsub;
1578	GENSUB_ARG = arg;
1579
1580	return newRV_noinc ((SV *)cv);
1581	}
1582
1583	/** Coro ********************************************************************/	1639	/** Coro ********************************************************************/
1584		1640
1585	INLINE void	1641	INLINE void
1586	coro_enq (pTHX_ struct coro *coro)	1642	coro_enq (pTHX_ struct coro *coro)
1587	{	1643	{
1588	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1644	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1589	}
1590		1645
1591	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 *
1592	coro_deq (pTHX)	1654	coro_deq (pTHX)
1593	{	1655	{
1594	int prio;	1656	int prio;
1595		1657
1596	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1658	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1597	if (AvFILLp (coro_ready [prio]) >= 0)	1659	{
1598	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	}
1599		1669
1600	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;
1601	}	1688	}
1602		1689
1603	static int	1690	static int
1604	api_ready (pTHX_ SV *coro_sv)	1691	api_ready (pTHX_ SV *coro_sv)
1605	{	1692	{
1606	struct coro *coro;
1607	SV *sv_hook;
1608	void (*xs_hook)(void);
1609
1610	coro = SvSTATE (coro_sv);	1693	struct coro *coro = SvSTATE (coro_sv);
1611		1694
1612	if (coro->flags & CF_READY)	1695	if (coro->flags & CF_READY)
1613	return 0;	1696	return 0;
1614		1697
1615	coro->flags |= CF_READY;	1698	coro->flags |= CF_READY;
1616		1699
1617	sv_hook = coro_nready ? 0 : coro_readyhook;
1618	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1619
1620	coro_enq (aTHX_ coro);	1700	coro_enq (aTHX_ coro);
1621	++coro_nready;
1622		1701
1623	if (sv_hook)	1702	if (!coro_nready++)
1624	{	1703	if (coroapi.readyhook)
1625	dSP;	1704	coroapi.readyhook ();
1626
1627	ENTER;
1628	SAVETMPS;
1629
1630	PUSHMARK (SP);
1631	PUTBACK;
1632	call_sv (sv_hook, G_VOID | G_DISCARD);
1633
1634	FREETMPS;
1635	LEAVE;
1636	}
1637
1638	if (xs_hook)
1639	xs_hook ();
1640		1705
1641	return 1;	1706	return 1;
1642	}	1707	}
1643		1708
1644	static int	1709	static int
…		…
1667	static void	1732	static void
1668	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1733	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1669	{	1734	{
1670	for (;;)	1735	for (;;)
1671	{	1736	{
1672	SV *next_sv = coro_deq (aTHX);	1737	struct coro *next = coro_deq (aTHX);
1673		1738
1674	if (expect_true (next_sv))	1739	if (expect_true (next))
1675	{	1740	{
1676	struct coro *next = SvSTATE_hv (next_sv);
1677
1678	/* cannot transfer to destroyed coros, skip and look for next */	1741	/* cannot transfer to destroyed coros, skip and look for next */
1679	if (expect_false (next->flags & CF_DESTROYED))	1742	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1680	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 */
1681	else	1744	else
1682	{	1745	{
1683	next->flags &= ~CF_READY;	1746	next->flags &= ~CF_READY;
1684	--coro_nready;	1747	--coro_nready;
1685		1748
…		…
1852	{	1915	{
1853	int i;	1916	int i;
1854	HV *hv = (HV *)SvRV (coro_current);	1917	HV *hv = (HV *)SvRV (coro_current);
1855	AV *av = newAV ();	1918	AV *av = newAV ();
1856		1919
		1920	/* items are actually not so common, so optimise for this case */
		1921	if (items)
		1922	{
1857	av_extend (av, items - 1);	1923	av_extend (av, items - 1);
		1924
1858	for (i = 0; i < items; ++i)	1925	for (i = 0; i < items; ++i)
1859	av_push (av, SvREFCNT_inc_NN (arg [i]));	1926	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1927	}
1860		1928
1861	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);	1929	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1862		1930
1863	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	1931	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1864	api_ready (aTHX_ sv_manager);	1932	api_ready (aTHX_ sv_manager);
1865		1933
1866	frame->prepare = prepare_schedule;	1934	frame->prepare = prepare_schedule;
1867	frame->check = slf_check_repeat;	1935	frame->check = slf_check_repeat;
		1936
		1937	/* as a minor optimisation, we could unwind all stacks here */
		1938	/* but that puts extra pressure on pp_slf, and is not worth much */
		1939	/*coro_unwind_stacks (aTHX);*/
1868	}	1940	}
1869		1941
1870	/*****************************************************************************/	1942	/*****************************************************************************/
1871	/* async pool handler */	1943	/* async pool handler */
1872		1944
…		…
1950		2022
1951	static void	2023	static void
1952	coro_rouse_callback (pTHX_ CV *cv)	2024	coro_rouse_callback (pTHX_ CV *cv)
1953	{	2025	{
1954	dXSARGS;	2026	dXSARGS;
1955	SV *data = (SV *)GENSUB_ARG;	2027	SV *data = (SV *)S_GENSUB_ARG;
1956		2028
1957	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2029	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1958	{	2030	{
1959	/* first call, set args */	2031	/* first call, set args */
		2032	SV *coro = SvRV (data);
1960	AV *av = newAV ();	2033	AV *av = newAV ();
1961	SV *coro = SvRV (data);
1962		2034
1963	SvRV_set (data, (SV *)av);	2035	SvRV_set (data, (SV *)av);
1964	api_ready (aTHX_ coro);
1965	SvREFCNT_dec (coro);
1966		2036
1967	/* better take a full copy of the arguments */	2037	/* better take a full copy of the arguments */
1968	while (items--)	2038	while (items--)
1969	av_store (av, items, newSVsv (ST (items)));	2039	av_store (av, items, newSVsv (ST (items)));
		2040
		2041	api_ready (aTHX_ coro);
		2042	SvREFCNT_dec (coro);
1970	}	2043	}
1971		2044
1972	XSRETURN_EMPTY;	2045	XSRETURN_EMPTY;
1973	}	2046	}
1974		2047
…		…
1991		2064
1992	EXTEND (SP, AvFILLp (av) + 1);	2065	EXTEND (SP, AvFILLp (av) + 1);
1993	for (i = 0; i <= AvFILLp (av); ++i)	2066	for (i = 0; i <= AvFILLp (av); ++i)
1994	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2067	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1995		2068
1996	/* we have stolen the elements, so ste length to zero and free */	2069	/* we have stolen the elements, so set length to zero and free */
1997	AvFILLp (av) = -1;	2070	AvFILLp (av) = -1;
1998	av_undef (av);	2071	av_undef (av);
1999		2072
2000	PUTBACK;	2073	PUTBACK;
2001	}	2074	}
…		…
2025	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2098	|| SvTYPE (SvRV (cb)) != SVt_PVCV
2026	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2099	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2027	croak ("Coro::rouse_wait called with illegal callback argument,");	2100	croak ("Coro::rouse_wait called with illegal callback argument,");
2028		2101
2029	{	2102	{
2030	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2103	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2031	SV *data = (SV *)GENSUB_ARG;	2104	SV *data = (SV *)S_GENSUB_ARG;
2032		2105
2033	frame->data = (void *)data;	2106	frame->data = (void *)data;
2034	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2107	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2035	frame->check = slf_check_rouse_wait;	2108	frame->check = slf_check_rouse_wait;
2036	}	2109	}
…		…
2040	coro_new_rouse_cb (pTHX)	2113	coro_new_rouse_cb (pTHX)
2041	{	2114	{
2042	HV *hv = (HV *)SvRV (coro_current);	2115	HV *hv = (HV *)SvRV (coro_current);
2043	struct coro *coro = SvSTATE_hv (hv);	2116	struct coro *coro = SvSTATE_hv (hv);
2044	SV *data = newRV_inc ((SV *)hv);	2117	SV *data = newRV_inc ((SV *)hv);
2045	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2118	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2046		2119
2047	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2120	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2048	SvREFCNT_dec (data); /* magicext increases the refcount */	2121	SvREFCNT_dec (data); /* magicext increases the refcount */
2049		2122
2050	SvREFCNT_dec (coro->rouse_cb);	2123	SvREFCNT_dec (coro->rouse_cb);
…		…
2291		2364
2292	PL_op->op_ppaddr = pp_slf;	2365	PL_op->op_ppaddr = pp_slf;
2293	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2366	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2294		2367
2295	PL_op = (OP *)&slf_restore;	2368	PL_op = (OP *)&slf_restore;
		2369	}
		2370
		2371	/*****************************************************************************/
		2372	/* dynamic wind */
		2373
		2374	static void
		2375	on_enterleave_call (pTHX_ SV *cb)
		2376	{
		2377	dSP;
		2378
		2379	PUSHSTACK;
		2380
		2381	PUSHMARK (SP);
		2382	PUTBACK;
		2383	call_sv (cb, G_VOID | G_DISCARD);
		2384	SPAGAIN;
		2385
		2386	POPSTACK;
		2387	}
		2388
		2389	static SV *
		2390	coro_avp_pop_and_free (pTHX_ AV **avp)
		2391	{
		2392	AV *av = *avp;
		2393	SV *res = av_pop (av);
		2394
		2395	if (AvFILLp (av) < 0)
		2396	{
		2397	*avp = 0;
		2398	SvREFCNT_dec (av);
		2399	}
		2400
		2401	return res;
		2402	}
		2403
		2404	static void
		2405	coro_pop_on_enter (pTHX_ void *coro)
		2406	{
		2407	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2408	SvREFCNT_dec (cb);
		2409	}
		2410
		2411	static void
		2412	coro_pop_on_leave (pTHX_ void *coro)
		2413	{
		2414	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2415	on_enterleave_call (aTHX_ sv_2mortal (cb));
2296	}	2416	}
2297		2417
2298	/*****************************************************************************/	2418	/*****************************************************************************/
2299	/* PerlIO::cede */	2419	/* PerlIO::cede */
2300		2420
…		…
2374	/* Coro::Semaphore & Coro::Signal */	2494	/* Coro::Semaphore & Coro::Signal */
2375		2495
2376	static SV *	2496	static SV *
2377	coro_waitarray_new (pTHX_ int count)	2497	coro_waitarray_new (pTHX_ int count)
2378	{	2498	{
2379	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2499	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2380	AV *av = newAV ();	2500	AV *av = newAV ();
2381	SV **ary;	2501	SV **ary;
2382		2502
2383	/* unfortunately, building manually saves memory */	2503	/* unfortunately, building manually saves memory */
2384	Newx (ary, 2, SV *);	2504	Newx (ary, 2, SV *);
…		…
2526	{	2646	{
2527	if (items >= 2)	2647	if (items >= 2)
2528	{	2648	{
2529	/* callback form */	2649	/* callback form */
2530	AV *av = (AV *)SvRV (arg [0]);	2650	AV *av = (AV *)SvRV (arg [0]);
2531	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2651	SV *cb_cv = s_get_cv_croak (arg [1]);
2532		2652
2533	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2653	av_push (av, SvREFCNT_inc_NN (cb_cv));
2534		2654
2535	if (SvIVX (AvARRAY (av)[0]) > 0)	2655	if (SvIVX (AvARRAY (av)[0]) > 0)
2536	coro_semaphore_adjust (aTHX_ av, 0);	2656	coro_semaphore_adjust (aTHX_ av, 0);
2537		2657
2538	frame->prepare = prepare_nop;	2658	frame->prepare = prepare_nop;
…		…
2562	AvARRAY (av)[0] = AvARRAY (av)[1];	2682	AvARRAY (av)[0] = AvARRAY (av)[1];
2563	AvARRAY (av)[1] = cb;	2683	AvARRAY (av)[1] = cb;
2564		2684
2565	cb = av_shift (av);	2685	cb = av_shift (av);
2566		2686
		2687	if (SvTYPE (cb) == SVt_PVCV)
		2688	{
		2689	dSP;
		2690	PUSHMARK (SP);
		2691	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2692	PUTBACK;
		2693	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2694	}
		2695	else
		2696	{
2567	api_ready (aTHX_ cb);	2697	api_ready (aTHX_ cb);
2568	sv_setiv (cb, 0); /* signal waiter */	2698	sv_setiv (cb, 0); /* signal waiter */
		2699	}
		2700
2569	SvREFCNT_dec (cb);	2701	SvREFCNT_dec (cb);
2570		2702
2571	--count;	2703	--count;
2572	}	2704	}
2573	}	2705	}
…		…
2582	static void	2714	static void
2583	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2715	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2584	{	2716	{
2585	AV *av = (AV *)SvRV (arg [0]);	2717	AV *av = (AV *)SvRV (arg [0]);
2586		2718
		2719	if (items >= 2)
		2720	{
		2721	SV *cb_cv = s_get_cv_croak (arg [1]);
		2722	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2723
2587	if (SvIVX (AvARRAY (av)[0]))	2724	if (SvIVX (AvARRAY (av)[0]))
		2725	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
		2726
		2727	frame->prepare = prepare_nop;
		2728	frame->check = slf_check_nop;
		2729	}
		2730	else if (SvIVX (AvARRAY (av)[0]))
2588	{	2731	{
2589	SvIVX (AvARRAY (av)[0]) = 0;	2732	SvIVX (AvARRAY (av)[0]) = 0;
2590	frame->prepare = prepare_nop;	2733	frame->prepare = prepare_nop;
2591	frame->check = slf_check_nop;	2734	frame->check = slf_check_nop;
2592	}	2735	}
2593	else	2736	else
2594	{	2737	{
2595	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2738	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2596		2739
2597	av_push (av, waiter);	2740	av_push (av, waiter);
2598		2741
2599	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2742	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2600	frame->prepare = prepare_schedule;	2743	frame->prepare = prepare_schedule;
…		…
2618		2761
2619	static void	2762	static void
2620	coro_aio_callback (pTHX_ CV *cv)	2763	coro_aio_callback (pTHX_ CV *cv)
2621	{	2764	{
2622	dXSARGS;	2765	dXSARGS;
2623	AV *state = (AV *)GENSUB_ARG;	2766	AV *state = (AV *)S_GENSUB_ARG;
2624	SV *coro = av_pop (state);	2767	SV *coro = av_pop (state);
2625	SV *data_sv = newSV (sizeof (struct io_state));	2768	SV *data_sv = newSV (sizeof (struct io_state));
2626		2769
2627	av_extend (state, items - 1);	2770	av_extend (state, items - 1);
2628		2771
…		…
2742		2885
2743	for (i = 0; i < items; ++i)	2886	for (i = 0; i < items; ++i)
2744	PUSHs (arg [i]);	2887	PUSHs (arg [i]);
2745		2888
2746	/* now push the callback closure */	2889	/* now push the callback closure */
2747	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	2890	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2748		2891
2749	/* now call the AIO function - we assume our request is uncancelable */	2892	/* now call the AIO function - we assume our request is uncancelable */
2750	PUTBACK;	2893	PUTBACK;
2751	call_sv ((SV *)req, G_VOID | G_DISCARD);	2894	call_sv ((SV *)req, G_VOID | G_DISCARD);
2752	}	2895	}
…		…
2770	/*****************************************************************************/	2913	/*****************************************************************************/
2771		2914
2772	#if CORO_CLONE	2915	#if CORO_CLONE
2773	# include "clone.c"	2916	# include "clone.c"
2774	#endif	2917	#endif
		2918
		2919	/*****************************************************************************/
		2920
		2921	static SV *
		2922	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		2923	{
		2924	SV *coro_sv;
		2925	struct coro *coro;
		2926	MAGIC *mg;
		2927	HV *hv;
		2928	SV *cb;
		2929	int i;
		2930
		2931	if (argc > 0)
		2932	{
		2933	cb = s_get_cv_croak (argv [0]);
		2934
		2935	if (!is_coro)
		2936	{
		2937	if (CvISXSUB (cb))
		2938	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2939
		2940	if (!CvROOT (cb))
		2941	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2942	}
		2943	}
		2944
		2945	Newz (0, coro, 1, struct coro);
		2946	coro->args = newAV ();
		2947	coro->flags = CF_NEW;
		2948
		2949	if (coro_first) coro_first->prev = coro;
		2950	coro->next = coro_first;
		2951	coro_first = coro;
		2952
		2953	coro->hv = hv = newHV ();
		2954	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		2955	mg->mg_flags |= MGf_DUP;
		2956	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		2957
		2958	if (argc > 0)
		2959	{
		2960	av_extend (coro->args, argc + is_coro - 1);
		2961
		2962	if (is_coro)
		2963	{
		2964	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2965	cb = (SV *)cv_coro_run;
		2966	}
		2967
		2968	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2969
		2970	for (i = 1; i < argc; i++)
		2971	av_push (coro->args, newSVsv (argv [i]));
		2972	}
		2973
		2974	return coro_sv;
		2975	}
2775		2976
2776	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2977	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2777		2978
2778	PROTOTYPES: DISABLE	2979	PROTOTYPES: DISABLE
2779		2980
…		…
2839		3040
2840	if (!svp) croak ("Time::HiRes is required");	3041	if (!svp) croak ("Time::HiRes is required");
2841	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	3042	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2842		3043
2843	nvtime = INT2PTR (double (*)(), SvIV (*svp));	3044	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		3045
		3046	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		3047	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2844	}	3048	}
2845		3049
2846	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	3050	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2847	}	3051	}
2848		3052
2849	SV *	3053	SV *
2850	new (char *klass, ...)	3054	new (SV *klass, ...)
2851	ALIAS:	3055	ALIAS:
2852	Coro::new = 1	3056	Coro::new = 1
2853	CODE:	3057	CODE:
2854	{	3058	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2855	struct coro *coro;	3059	OUTPUT:
2856	MAGIC *mg;
2857	HV *hv;
2858	CV *cb;
2859	int i;
2860
2861	if (items > 1)
2862	{
2863	cb = coro_sv_2cv (aTHX_ ST (1));
2864
2865	if (!ix)
2866	{
2867	if (CvISXSUB (cb))
2868	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2869
2870	if (!CvROOT (cb))
2871	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2872	}
2873	}
2874
2875	Newz (0, coro, 1, struct coro);
2876	coro->args = newAV ();
2877	coro->flags = CF_NEW;
2878
2879	if (coro_first) coro_first->prev = coro;
2880	coro->next = coro_first;
2881	coro_first = coro;
2882
2883	coro->hv = hv = newHV ();
2884	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2885	mg->mg_flags |= MGf_DUP;
2886	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2887
2888	if (items > 1)
2889	{
2890	av_extend (coro->args, items - 1 + ix - 1);
2891
2892	if (ix)
2893	{
2894	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2895	cb = cv_coro_run;
2896	}
2897
2898	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2899
2900	for (i = 2; i < items; i++)
2901	av_push (coro->args, newSVsv (ST (i)));
2902	}
2903	}
2904	OUTPUT:
2905	RETVAL	3060	RETVAL
2906		3061
2907	void	3062	void
2908	transfer (...)	3063	transfer (...)
2909	PROTOTYPE: $$	3064	PROTOTYPE: $$
…		…
2998	eval = 1	3153	eval = 1
2999	CODE:	3154	CODE:
3000	{	3155	{
3001	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3156	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3002	{	3157	{
3003	struct coro temp;	3158	struct coro *current = SvSTATE_current;
3004		3159
3005	if (!(coro->flags & CF_RUNNING))	3160	if (current != coro)
3006	{	3161	{
3007	PUTBACK;	3162	PUTBACK;
3008	save_perl (aTHX_ &temp);	3163	save_perl (aTHX_ current);
3009	load_perl (aTHX_ coro);	3164	load_perl (aTHX_ coro);
		3165	SPAGAIN;
3010	}	3166	}
3011		3167
3012	{
3013	dSP;
3014	ENTER;
3015	SAVETMPS;
3016	PUTBACK;
3017	PUSHSTACK;	3168	PUSHSTACK;
		3169
3018	PUSHMARK (SP);	3170	PUSHMARK (SP);
		3171	PUTBACK;
3019		3172
3020	if (ix)	3173	if (ix)
3021	eval_sv (coderef, 0);	3174	eval_sv (coderef, 0);
3022	else	3175	else
3023	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3176	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3024		3177
3025	POPSTACK;	3178	POPSTACK;
3026	SPAGAIN;	3179	SPAGAIN;
3027	FREETMPS;
3028	LEAVE;
3029	PUTBACK;
3030	}
3031		3180
3032	if (!(coro->flags & CF_RUNNING))	3181	if (current != coro)
3033	{	3182	{
		3183	PUTBACK;
3034	save_perl (aTHX_ coro);	3184	save_perl (aTHX_ coro);
3035	load_perl (aTHX_ &temp);	3185	load_perl (aTHX_ current);
3036	SPAGAIN;	3186	SPAGAIN;
3037	}	3187	}
3038	}	3188	}
3039	}	3189	}
3040		3190
…		…
3044	ALIAS:	3194	ALIAS:
3045	is_ready = CF_READY	3195	is_ready = CF_READY
3046	is_running = CF_RUNNING	3196	is_running = CF_RUNNING
3047	is_new = CF_NEW	3197	is_new = CF_NEW
3048	is_destroyed = CF_DESTROYED	3198	is_destroyed = CF_DESTROYED
		3199	is_suspended = CF_SUSPENDED
3049	CODE:	3200	CODE:
3050	RETVAL = boolSV (coro->flags & ix);	3201	RETVAL = boolSV (coro->flags & ix);
3051	OUTPUT:	3202	OUTPUT:
3052	RETVAL	3203	RETVAL
3053		3204
…		…
3057	CODE:	3208	CODE:
3058	{	3209	{
3059	struct coro *current = SvSTATE_current;	3210	struct coro *current = SvSTATE_current;
3060	SV **throwp = self == current ? &CORO_THROW : &self->except;	3211	SV **throwp = self == current ? &CORO_THROW : &self->except;
3061	SvREFCNT_dec (*throwp);	3212	SvREFCNT_dec (*throwp);
		3213	SvGETMAGIC (throw);
3062	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3214	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
3063	}	3215	}
3064		3216
3065	void	3217	void
3066	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3218	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
…		…
3118	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3270	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3119		3271
3120	SV *tmp = *src; *src = *dst; *dst = tmp;	3272	SV *tmp = *src; *src = *dst; *dst = tmp;
3121	}	3273	}
3122		3274
		3275	void
		3276	cancel (Coro::State self)
		3277	CODE:
		3278	coro_state_destroy (aTHX_ self);
		3279	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3280
		3281
		3282	SV *
		3283	enable_times (int enabled = enable_times)
		3284	CODE:
		3285	{
		3286	RETVAL = boolSV (enable_times);
		3287
		3288	if (enabled != enable_times)
		3289	{
		3290	enable_times = enabled;
		3291
		3292	coro_times_update ();
		3293	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3294	}
		3295	}
		3296	OUTPUT:
		3297	RETVAL
		3298
		3299	void
		3300	times (Coro::State self)
		3301	PPCODE:
		3302	{
		3303	struct coro *current = SvSTATE (coro_current);
		3304
		3305	if (expect_false (current == self))
		3306	{
		3307	coro_times_update ();
		3308	coro_times_add (SvSTATE (coro_current));
		3309	}
		3310
		3311	EXTEND (SP, 2);
		3312	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3313	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3314
		3315	if (expect_false (current == self))
		3316	coro_times_sub (SvSTATE (coro_current));
		3317	}
3123		3318
3124	MODULE = Coro::State PACKAGE = Coro	3319	MODULE = Coro::State PACKAGE = Coro
3125		3320
3126	BOOT:	3321	BOOT:
3127	{	3322	{
3128	int i;
3129
3130	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3323	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3131	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3324	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3132	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);	3325	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3133	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3326	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3134	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3327	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
…		…
3138	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);	3331	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3139		3332
3140	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3333	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3141	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3334	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3142	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3335	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3143	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
3144		3336
3145	coro_stash = gv_stashpv ("Coro", TRUE);	3337	coro_stash = gv_stashpv ("Coro", TRUE);
3146		3338
3147	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3339	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3148	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3340	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3149	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3341	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3150	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3342	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3151	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3343	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3152	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3344	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3153
3154	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3155	coro_ready[i] = newAV ();
3156		3345
3157	{	3346	{
3158	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3347	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3159		3348
3160	coroapi.schedule = api_schedule;	3349	coroapi.schedule = api_schedule;
…		…
3170	sv_setiv (sv, (IV)&coroapi);	3359	sv_setiv (sv, (IV)&coroapi);
3171	SvREADONLY_on (sv);	3360	SvREADONLY_on (sv);
3172	}	3361	}
3173	}	3362	}
3174		3363
		3364	SV *
		3365	async (...)
		3366	PROTOTYPE: &@
		3367	CODE:
		3368	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3369	api_ready (RETVAL);
		3370	OUTPUT:
		3371	RETVAL
		3372
3175	void	3373	void
3176	terminate (...)	3374	terminate (...)
3177	CODE:	3375	CODE:
3178	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3376	CORO_EXECUTE_SLF_XS (slf_init_terminate);
3179		3377
…		…
3199		3397
3200	void	3398	void
3201	cede_notself (...)	3399	cede_notself (...)
3202	CODE:	3400	CODE:
3203	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3401	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3204
3205	void
3206	_cancel (Coro::State self)
3207	CODE:
3208	coro_state_destroy (aTHX_ self);
3209	coro_call_on_destroy (aTHX_ self);
3210		3402
3211	void	3403	void
3212	_set_current (SV *current)	3404	_set_current (SV *current)
3213	PROTOTYPE: $	3405	PROTOTYPE: $
3214	CODE:	3406	CODE:
…		…
3218	void	3410	void
3219	_set_readyhook (SV *hook)	3411	_set_readyhook (SV *hook)
3220	PROTOTYPE: $	3412	PROTOTYPE: $
3221	CODE:	3413	CODE:
3222	SvREFCNT_dec (coro_readyhook);	3414	SvREFCNT_dec (coro_readyhook);
		3415	SvGETMAGIC (hook);
		3416	if (SvOK (hook))
		3417	{
3223	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3418	coro_readyhook = newSVsv (hook);
		3419	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3420	}
		3421	else
		3422	{
		3423	coro_readyhook = 0;
		3424	CORO_READYHOOK = 0;
		3425	}
3224		3426
3225	int	3427	int
3226	prio (Coro::State coro, int newprio = 0)	3428	prio (Coro::State coro, int newprio = 0)
3227	PROTOTYPE: $;$	3429	PROTOTYPE: $;$
3228	ALIAS:	3430	ALIAS:
…		…
3234	if (items > 1)	3436	if (items > 1)
3235	{	3437	{
3236	if (ix)	3438	if (ix)
3237	newprio = coro->prio - newprio;	3439	newprio = coro->prio - newprio;
3238		3440
3239	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3441	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3240	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3442	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3241		3443
3242	coro->prio = newprio;	3444	coro->prio = newprio;
3243	}	3445	}
3244	}	3446	}
3245	OUTPUT:	3447	OUTPUT:
…		…
3260	RETVAL = coro_nready;	3462	RETVAL = coro_nready;
3261	OUTPUT:	3463	OUTPUT:
3262	RETVAL	3464	RETVAL
3263		3465
3264	void	3466	void
		3467	suspend (Coro::State self)
		3468	PROTOTYPE: $
		3469	CODE:
		3470	self->flags |= CF_SUSPENDED;
		3471
		3472	void
		3473	resume (Coro::State self)
		3474	PROTOTYPE: $
		3475	CODE:
		3476	self->flags &= ~CF_SUSPENDED;
		3477
		3478	void
3265	_pool_handler (...)	3479	_pool_handler (...)
3266	CODE:	3480	CODE:
3267	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3481	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3268		3482
3269	void	3483	void
…		…
3280	for (i = 1; i < items; ++i)	3494	for (i = 1; i < items; ++i)
3281	av_push (av, SvREFCNT_inc_NN (ST (i)));	3495	av_push (av, SvREFCNT_inc_NN (ST (i)));
3282		3496
3283	if ((SV *)hv == &PL_sv_undef)	3497	if ((SV *)hv == &PL_sv_undef)
3284	{	3498	{
3285	PUSHMARK (SP);	3499	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3286	EXTEND (SP, 2);
3287	PUSHs (sv_Coro);
3288	PUSHs ((SV *)cv_pool_handler);
3289	PUTBACK;
3290	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3291	SPAGAIN;
3292
3293	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3500	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3501	SvREFCNT_dec (sv);
3294	}	3502	}
3295		3503
3296	{	3504	{
3297	struct coro *coro = SvSTATE_hv (hv);	3505	struct coro *coro = SvSTATE_hv (hv);
3298		3506
…		…
3322	rouse_wait (...)	3530	rouse_wait (...)
3323	PROTOTYPE: ;$	3531	PROTOTYPE: ;$
3324	PPCODE:	3532	PPCODE:
3325	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3533	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3326		3534
		3535	void
		3536	on_enter (SV *block)
		3537	ALIAS:
		3538	on_leave = 1
		3539	PROTOTYPE: &
		3540	CODE:
		3541	{
		3542	struct coro *coro = SvSTATE_current;
		3543	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3544
		3545	block = s_get_cv_croak (block);
		3546
		3547	if (!*avp)
		3548	*avp = newAV ();
		3549
		3550	av_push (*avp, SvREFCNT_inc (block));
		3551
		3552	if (!ix)
		3553	on_enterleave_call (aTHX_ block);
		3554
		3555	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3556	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3557	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3558	}
		3559
3327		3560
3328	MODULE = Coro::State PACKAGE = PerlIO::cede	3561	MODULE = Coro::State PACKAGE = PerlIO::cede
3329		3562
3330	BOOT:	3563	BOOT:
3331	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3564	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3334	MODULE = Coro::State PACKAGE = Coro::Semaphore	3567	MODULE = Coro::State PACKAGE = Coro::Semaphore
3335		3568
3336	SV *	3569	SV *
3337	new (SV *klass, SV *count = 0)	3570	new (SV *klass, SV *count = 0)
3338	CODE:	3571	CODE:
		3572	{
		3573	int semcnt = 1;
		3574
		3575	if (count)
		3576	{
		3577	SvGETMAGIC (count);
		3578
		3579	if (SvOK (count))
		3580	semcnt = SvIV (count);
		3581	}
		3582
3339	RETVAL = sv_bless (	3583	RETVAL = sv_bless (
3340	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3584	coro_waitarray_new (aTHX_ semcnt),
3341	GvSTASH (CvGV (cv))	3585	GvSTASH (CvGV (cv))
3342	);	3586	);
		3587	}
3343	OUTPUT:	3588	OUTPUT:
3344	RETVAL	3589	RETVAL
3345		3590
3346	# helper for Coro::Channel	3591	# helper for Coro::Channel and others
3347	SV *	3592	SV *
3348	_alloc (int count)	3593	_alloc (int count)
3349	CODE:	3594	CODE:
3350	RETVAL = coro_waitarray_new (aTHX_ count);	3595	RETVAL = coro_waitarray_new (aTHX_ count);
3351	OUTPUT:	3596	OUTPUT:
…		…
3409	for (i = 1; i <= wcount; ++i)	3654	for (i = 1; i <= wcount; ++i)
3410	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3655	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3411	}	3656	}
3412	}	3657	}
3413		3658
		3659	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3660
		3661	void
		3662	_may_delete (SV *sem, int count, int extra_refs)
		3663	PPCODE:
		3664	{
		3665	AV *av = (AV *)SvRV (sem);
		3666
		3667	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3668	&& AvFILLp (av) == 0 /* no waiters, just count */
		3669	&& SvIV (AvARRAY (av)[0]) == count)
		3670	XSRETURN_YES;
		3671
		3672	XSRETURN_NO;
		3673	}
		3674
3414	MODULE = Coro::State PACKAGE = Coro::Signal	3675	MODULE = Coro::State PACKAGE = Coro::Signal
3415		3676
3416	SV *	3677	SV *
3417	new (SV *klass)	3678	new (SV *klass)
3418	CODE:	3679	CODE:
…		…
3489		3750
3490	void	3751	void
3491	_register (char *target, char *proto, SV *req)	3752	_register (char *target, char *proto, SV *req)
3492	CODE:	3753	CODE:
3493	{	3754	{
3494	CV *req_cv = coro_sv_2cv (aTHX_ req);	3755	SV *req_cv = s_get_cv_croak (req);
3495	/* newXSproto doesn't return the CV on 5.8 */	3756	/* newXSproto doesn't return the CV on 5.8 */
3496	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3757	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3497	sv_setpv ((SV *)slf_cv, proto);	3758	sv_setpv ((SV *)slf_cv, proto);
3498	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3759	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3499	}	3760	}
3500		3761
		3762	MODULE = Coro::State PACKAGE = Coro::Select
		3763
		3764	void
		3765	patch_pp_sselect ()
		3766	CODE:
		3767	if (!coro_old_pp_sselect)
		3768	{
		3769	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3770	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3771	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3772	}
		3773
		3774	void
		3775	unpatch_pp_sselect ()
		3776	CODE:
		3777	if (coro_old_pp_sselect)
		3778	{
		3779	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3780	coro_old_pp_sselect = 0;
		3781	}
		3782
		3783

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