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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.338 by root, Sun Dec 7 15:33:21 2008 UTC vs.
Revision 1.373 by root, Thu Oct 1 23:51:33 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
…		…
932		997
933	PL_op = (OP *)&coro_setup_op;	998	PL_op = (OP *)&coro_setup_op;
934		999
935	/* copy throw, in case it was set before coro_setup */	1000	/* copy throw, in case it was set before coro_setup */
936	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	}
937	}	1008	}
938		1009
939	static void	1010	static void
940	coro_unwind_stacks (pTHX)	1011	coro_unwind_stacks (pTHX)
941	{	1012	{
…		…
958	}	1029	}
959		1030
960	static void	1031	static void
961	coro_destruct_perl (pTHX_ struct coro *coro)	1032	coro_destruct_perl (pTHX_ struct coro *coro)
962	{	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
963	coro_unwind_stacks (aTHX);	1044	coro_unwind_stacks (aTHX);
		1045	coro_destruct_stacks (aTHX);
964		1046
965	SvREFCNT_dec (GvSV (PL_defgv));	1047	// now save some sv's to be free'd later
966	SvREFCNT_dec (GvAV (PL_defgv));	1048	svf [0] = GvSV (PL_defgv);
967	SvREFCNT_dec (GvSV (PL_errgv));	1049	svf [1] = (SV *)GvAV (PL_defgv);
968	SvREFCNT_dec (PL_defoutgv);	1050	svf [2] = GvSV (PL_errgv);
969	SvREFCNT_dec (PL_rs);	1051	svf [3] = (SV *)PL_defoutgv;
970	SvREFCNT_dec (GvSV (irsgv));	1052	svf [4] = PL_rs;
971	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));
972		1058
973	SvREFCNT_dec (PL_diehook);	1059	load_perl (aTHX_ current);
974	SvREFCNT_dec (PL_warnhook);
975		1060	}
		1061
		1062	{
		1063	unsigned int i;
		1064
		1065	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1066	SvREFCNT_dec (svf [i]);
		1067
976	SvREFCNT_dec (coro->saved_deffh);	1068	SvREFCNT_dec (coro->saved_deffh);
977	SvREFCNT_dec (coro->rouse_cb);	1069	SvREFCNT_dec (coro->rouse_cb);
978	SvREFCNT_dec (coro->invoke_cb);	1070	SvREFCNT_dec (coro->invoke_cb);
979	SvREFCNT_dec (coro->invoke_av);	1071	SvREFCNT_dec (coro->invoke_av);
980		1072	}
981	coro_destruct_stacks (aTHX);
982	}	1073	}
983		1074
984	INLINE void	1075	INLINE void
985	free_coro_mortal (pTHX)	1076	free_coro_mortal (pTHX)
986	{	1077	{
…		…
1183	/* 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 */
1184	PL_restartop = PL_op;	1275	PL_restartop = PL_op;
1185	perl_run (PL_curinterp);	1276	perl_run (PL_curinterp);
1186	/*	1277	/*
1187	* 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
1188	* 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.
1189	*/	1281	*/
1190		1282
1191	/*	1283	/*
1192	* 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
1193	* 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)
…		…
1354	/* TODO: throwing up here is considered harmful */	1446	/* TODO: throwing up here is considered harmful */
1355		1447
1356	if (expect_true (prev != next))	1448	if (expect_true (prev != next))
1357	{	1449	{
1358	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1450	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1359	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,");
1360		1452
1361	if (expect_false (next->flags & CF_RUNNING))
1362	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1363
1364	if (expect_false (next->flags & CF_DESTROYED))	1453	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1365	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,");
1366		1455
1367	#if !PERL_VERSION_ATLEAST (5,10,0)	1456	#if !PERL_VERSION_ATLEAST (5,10,0)
1368	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1457	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1369	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,");
1370	#endif	1459	#endif
…		…
1458	coro_state_destroy (pTHX_ struct coro *coro)	1547	coro_state_destroy (pTHX_ struct coro *coro)
1459	{	1548	{
1460	if (coro->flags & CF_DESTROYED)	1549	if (coro->flags & CF_DESTROYED)
1461	return 0;	1550	return 0;
1462		1551
1463	if (coro->on_destroy)	1552	if (coro->on_destroy && !PL_dirty)
1464	coro->on_destroy (aTHX_ coro);	1553	coro->on_destroy (aTHX_ coro);
1465		1554
1466	coro->flags |= CF_DESTROYED;	1555	coro->flags |= CF_DESTROYED;
1467		1556
1468	if (coro->flags & CF_READY)	1557	if (coro->flags & CF_READY)
…		…
1476		1565
1477	if (coro->mainstack	1566	if (coro->mainstack
1478	&& coro->mainstack != main_mainstack	1567	&& coro->mainstack != main_mainstack
1479	&& coro->slot	1568	&& coro->slot
1480	&& !PL_dirty)	1569	&& !PL_dirty)
1481	{
1482	struct coro temp;
1483
1484	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1485
1486	save_perl (aTHX_ &temp);
1487	load_perl (aTHX_ coro);
1488
1489	coro_destruct_perl (aTHX_ coro);	1570	coro_destruct_perl (aTHX_ coro);
1490
1491	load_perl (aTHX_ &temp);
1492
1493	coro->slot = 0;
1494	}
1495		1571
1496	cctx_destroy (coro->cctx);	1572	cctx_destroy (coro->cctx);
1497	SvREFCNT_dec (coro->startcv);	1573	SvREFCNT_dec (coro->startcv);
1498	SvREFCNT_dec (coro->args);	1574	SvREFCNT_dec (coro->args);
1499	SvREFCNT_dec (CORO_THROW);	1575	SvREFCNT_dec (CORO_THROW);
…		…
1558		1634
1559	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1635	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1560	TRANSFER (ta, 1);	1636	TRANSFER (ta, 1);
1561	}	1637	}
1562		1638
1563	/*****************************************************************************/
1564	/* gensub: simple closure generation utility */
1565
1566	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1567
1568	/* create a closure from XS, returns a code reference */
1569	/* the arg can be accessed via GENSUB_ARG from the callback */
1570	/* the callback must use dXSARGS/XSRETURN */
1571	static SV *
1572	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1573	{
1574	CV *cv = (CV *)newSV (0);
1575
1576	sv_upgrade ((SV *)cv, SVt_PVCV);
1577
1578	CvANON_on (cv);
1579	CvISXSUB_on (cv);
1580	CvXSUB (cv) = xsub;
1581	GENSUB_ARG = arg;
1582
1583	return newRV_noinc ((SV *)cv);
1584	}
1585
1586	/** Coro ********************************************************************/	1639	/** Coro ********************************************************************/
1587		1640
1588	INLINE void	1641	INLINE void
1589	coro_enq (pTHX_ struct coro *coro)	1642	coro_enq (pTHX_ struct coro *coro)
1590	{	1643	{
1591	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1644	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1592	}
1593		1645
1594	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 *
1595	coro_deq (pTHX)	1654	coro_deq (pTHX)
1596	{	1655	{
1597	int prio;	1656	int prio;
1598		1657
1599	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1658	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1600	if (AvFILLp (coro_ready [prio]) >= 0)	1659	{
1601	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	}
1602		1669
1603	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;
1604	}	1688	}
1605		1689
1606	static int	1690	static int
1607	api_ready (pTHX_ SV *coro_sv)	1691	api_ready (pTHX_ SV *coro_sv)
1608	{	1692	{
1609	struct coro *coro;
1610	SV *sv_hook;
1611	void (*xs_hook)(void);
1612
1613	coro = SvSTATE (coro_sv);	1693	struct coro *coro = SvSTATE (coro_sv);
1614		1694
1615	if (coro->flags & CF_READY)	1695	if (coro->flags & CF_READY)
1616	return 0;	1696	return 0;
1617		1697
1618	coro->flags |= CF_READY;	1698	coro->flags |= CF_READY;
1619		1699
1620	sv_hook = coro_nready ? 0 : coro_readyhook;
1621	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1622
1623	coro_enq (aTHX_ coro);	1700	coro_enq (aTHX_ coro);
1624	++coro_nready;
1625		1701
1626	if (sv_hook)	1702	if (!coro_nready++)
1627	{	1703	if (coroapi.readyhook)
1628	dSP;	1704	coroapi.readyhook ();
1629
1630	ENTER;
1631	SAVETMPS;
1632
1633	PUSHMARK (SP);
1634	PUTBACK;
1635	call_sv (sv_hook, G_VOID | G_DISCARD);
1636
1637	FREETMPS;
1638	LEAVE;
1639	}
1640
1641	if (xs_hook)
1642	xs_hook ();
1643		1705
1644	return 1;	1706	return 1;
1645	}	1707	}
1646		1708
1647	static int	1709	static int
…		…
1670	static void	1732	static void
1671	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1733	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1672	{	1734	{
1673	for (;;)	1735	for (;;)
1674	{	1736	{
1675	SV *next_sv = coro_deq (aTHX);	1737	struct coro *next = coro_deq (aTHX);
1676		1738
1677	if (expect_true (next_sv))	1739	if (expect_true (next))
1678	{	1740	{
1679	struct coro *next = SvSTATE_hv (next_sv);
1680
1681	/* cannot transfer to destroyed coros, skip and look for next */	1741	/* cannot transfer to destroyed coros, skip and look for next */
1682	if (expect_false (next->flags & CF_DESTROYED))	1742	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1683	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 */
1684	else	1744	else
1685	{	1745	{
1686	next->flags &= ~CF_READY;	1746	next->flags &= ~CF_READY;
1687	--coro_nready;	1747	--coro_nready;
1688		1748
…		…
1700	api_ready (aTHX_ SvRV (sv_idle));	1760	api_ready (aTHX_ SvRV (sv_idle));
1701	--coro_nready;	1761	--coro_nready;
1702	}	1762	}
1703	else	1763	else
1704	{	1764	{
		1765	/* TODO: deprecated, remove, cannot work reliably *//*D*/
1705	dSP;	1766	dSP;
1706		1767
1707	ENTER;	1768	ENTER;
1708	SAVETMPS;	1769	SAVETMPS;
1709		1770
…		…
1855	{	1916	{
1856	int i;	1917	int i;
1857	HV *hv = (HV *)SvRV (coro_current);	1918	HV *hv = (HV *)SvRV (coro_current);
1858	AV *av = newAV ();	1919	AV *av = newAV ();
1859		1920
		1921	/* items are actually not so common, so optimise for this case */
		1922	if (items)
		1923	{
1860	av_extend (av, items - 1);	1924	av_extend (av, items - 1);
		1925
1861	for (i = 0; i < items; ++i)	1926	for (i = 0; i < items; ++i)
1862	av_push (av, SvREFCNT_inc_NN (arg [i]));	1927	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1928	}
1863		1929
1864	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);
1865		1931
1866	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 */
1867	api_ready (aTHX_ sv_manager);	1933	api_ready (aTHX_ sv_manager);
…		…
1957		2023
1958	static void	2024	static void
1959	coro_rouse_callback (pTHX_ CV *cv)	2025	coro_rouse_callback (pTHX_ CV *cv)
1960	{	2026	{
1961	dXSARGS;	2027	dXSARGS;
1962	SV *data = (SV *)GENSUB_ARG;	2028	SV *data = (SV *)S_GENSUB_ARG;
1963		2029
1964	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2030	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1965	{	2031	{
1966	/* first call, set args */	2032	/* first call, set args */
		2033	SV *coro = SvRV (data);
1967	AV *av = newAV ();	2034	AV *av = newAV ();
1968	SV *coro = SvRV (data);
1969		2035
1970	SvRV_set (data, (SV *)av);	2036	SvRV_set (data, (SV *)av);
1971	api_ready (aTHX_ coro);
1972	SvREFCNT_dec (coro);
1973		2037
1974	/* better take a full copy of the arguments */	2038	/* better take a full copy of the arguments */
1975	while (items--)	2039	while (items--)
1976	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);
1977	}	2044	}
1978		2045
1979	XSRETURN_EMPTY;	2046	XSRETURN_EMPTY;
1980	}	2047	}
1981		2048
…		…
1998		2065
1999	EXTEND (SP, AvFILLp (av) + 1);	2066	EXTEND (SP, AvFILLp (av) + 1);
2000	for (i = 0; i <= AvFILLp (av); ++i)	2067	for (i = 0; i <= AvFILLp (av); ++i)
2001	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2068	PUSHs (sv_2mortal (AvARRAY (av)[i]));
2002		2069
2003	/* 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 */
2004	AvFILLp (av) = -1;	2071	AvFILLp (av) = -1;
2005	av_undef (av);	2072	av_undef (av);
2006		2073
2007	PUTBACK;	2074	PUTBACK;
2008	}	2075	}
…		…
2032	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2099	|| SvTYPE (SvRV (cb)) != SVt_PVCV
2033	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2100	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2034	croak ("Coro::rouse_wait called with illegal callback argument,");	2101	croak ("Coro::rouse_wait called with illegal callback argument,");
2035		2102
2036	{	2103	{
2037	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2104	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2038	SV *data = (SV *)GENSUB_ARG;	2105	SV *data = (SV *)S_GENSUB_ARG;
2039		2106
2040	frame->data = (void *)data;	2107	frame->data = (void *)data;
2041	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2108	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2042	frame->check = slf_check_rouse_wait;	2109	frame->check = slf_check_rouse_wait;
2043	}	2110	}
…		…
2047	coro_new_rouse_cb (pTHX)	2114	coro_new_rouse_cb (pTHX)
2048	{	2115	{
2049	HV *hv = (HV *)SvRV (coro_current);	2116	HV *hv = (HV *)SvRV (coro_current);
2050	struct coro *coro = SvSTATE_hv (hv);	2117	struct coro *coro = SvSTATE_hv (hv);
2051	SV *data = newRV_inc ((SV *)hv);	2118	SV *data = newRV_inc ((SV *)hv);
2052	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2119	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2053		2120
2054	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);
2055	SvREFCNT_dec (data); /* magicext increases the refcount */	2122	SvREFCNT_dec (data); /* magicext increases the refcount */
2056		2123
2057	SvREFCNT_dec (coro->rouse_cb);	2124	SvREFCNT_dec (coro->rouse_cb);
…		…
2298		2365
2299	PL_op->op_ppaddr = pp_slf;	2366	PL_op->op_ppaddr = pp_slf;
2300	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2367	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2301		2368
2302	PL_op = (OP *)&slf_restore;	2369	PL_op = (OP *)&slf_restore;
		2370	}
		2371
		2372	/*****************************************************************************/
		2373	/* dynamic wind */
		2374
		2375	static void
		2376	on_enterleave_call (pTHX_ SV *cb)
		2377	{
		2378	dSP;
		2379
		2380	PUSHSTACK;
		2381
		2382	PUSHMARK (SP);
		2383	PUTBACK;
		2384	call_sv (cb, G_VOID | G_DISCARD);
		2385	SPAGAIN;
		2386
		2387	POPSTACK;
		2388	}
		2389
		2390	static SV *
		2391	coro_avp_pop_and_free (pTHX_ AV **avp)
		2392	{
		2393	AV *av = *avp;
		2394	SV *res = av_pop (av);
		2395
		2396	if (AvFILLp (av) < 0)
		2397	{
		2398	*avp = 0;
		2399	SvREFCNT_dec (av);
		2400	}
		2401
		2402	return res;
		2403	}
		2404
		2405	static void
		2406	coro_pop_on_enter (pTHX_ void *coro)
		2407	{
		2408	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2409	SvREFCNT_dec (cb);
		2410	}
		2411
		2412	static void
		2413	coro_pop_on_leave (pTHX_ void *coro)
		2414	{
		2415	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2416	on_enterleave_call (aTHX_ sv_2mortal (cb));
2303	}	2417	}
2304		2418
2305	/*****************************************************************************/	2419	/*****************************************************************************/
2306	/* PerlIO::cede */	2420	/* PerlIO::cede */
2307		2421
…		…
2381	/* Coro::Semaphore & Coro::Signal */	2495	/* Coro::Semaphore & Coro::Signal */
2382		2496
2383	static SV *	2497	static SV *
2384	coro_waitarray_new (pTHX_ int count)	2498	coro_waitarray_new (pTHX_ int count)
2385	{	2499	{
2386	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2500	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2387	AV *av = newAV ();	2501	AV *av = newAV ();
2388	SV **ary;	2502	SV **ary;
2389		2503
2390	/* unfortunately, building manually saves memory */	2504	/* unfortunately, building manually saves memory */
2391	Newx (ary, 2, SV *);	2505	Newx (ary, 2, SV *);
…		…
2533	{	2647	{
2534	if (items >= 2)	2648	if (items >= 2)
2535	{	2649	{
2536	/* callback form */	2650	/* callback form */
2537	AV *av = (AV *)SvRV (arg [0]);	2651	AV *av = (AV *)SvRV (arg [0]);
2538	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2652	SV *cb_cv = s_get_cv_croak (arg [1]);
2539		2653
2540	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2654	av_push (av, SvREFCNT_inc_NN (cb_cv));
2541		2655
2542	if (SvIVX (AvARRAY (av)[0]) > 0)	2656	if (SvIVX (AvARRAY (av)[0]) > 0)
2543	coro_semaphore_adjust (aTHX_ av, 0);	2657	coro_semaphore_adjust (aTHX_ av, 0);
2544		2658
2545	frame->prepare = prepare_nop;	2659	frame->prepare = prepare_nop;
…		…
2569	AvARRAY (av)[0] = AvARRAY (av)[1];	2683	AvARRAY (av)[0] = AvARRAY (av)[1];
2570	AvARRAY (av)[1] = cb;	2684	AvARRAY (av)[1] = cb;
2571		2685
2572	cb = av_shift (av);	2686	cb = av_shift (av);
2573		2687
		2688	if (SvTYPE (cb) == SVt_PVCV)
		2689	{
		2690	dSP;
		2691	PUSHMARK (SP);
		2692	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2693	PUTBACK;
		2694	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2695	}
		2696	else
		2697	{
2574	api_ready (aTHX_ cb);	2698	api_ready (aTHX_ cb);
2575	sv_setiv (cb, 0); /* signal waiter */	2699	sv_setiv (cb, 0); /* signal waiter */
		2700	}
		2701
2576	SvREFCNT_dec (cb);	2702	SvREFCNT_dec (cb);
2577		2703
2578	--count;	2704	--count;
2579	}	2705	}
2580	}	2706	}
…		…
2589	static void	2715	static void
2590	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2716	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2591	{	2717	{
2592	AV *av = (AV *)SvRV (arg [0]);	2718	AV *av = (AV *)SvRV (arg [0]);
2593		2719
		2720	if (items >= 2)
		2721	{
		2722	SV *cb_cv = s_get_cv_croak (arg [1]);
		2723	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2724
2594	if (SvIVX (AvARRAY (av)[0]))	2725	if (SvIVX (AvARRAY (av)[0]))
		2726	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
		2727
		2728	frame->prepare = prepare_nop;
		2729	frame->check = slf_check_nop;
		2730	}
		2731	else if (SvIVX (AvARRAY (av)[0]))
2595	{	2732	{
2596	SvIVX (AvARRAY (av)[0]) = 0;	2733	SvIVX (AvARRAY (av)[0]) = 0;
2597	frame->prepare = prepare_nop;	2734	frame->prepare = prepare_nop;
2598	frame->check = slf_check_nop;	2735	frame->check = slf_check_nop;
2599	}	2736	}
2600	else	2737	else
2601	{	2738	{
2602	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2739	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2603		2740
2604	av_push (av, waiter);	2741	av_push (av, waiter);
2605		2742
2606	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2743	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2607	frame->prepare = prepare_schedule;	2744	frame->prepare = prepare_schedule;
…		…
2625		2762
2626	static void	2763	static void
2627	coro_aio_callback (pTHX_ CV *cv)	2764	coro_aio_callback (pTHX_ CV *cv)
2628	{	2765	{
2629	dXSARGS;	2766	dXSARGS;
2630	AV *state = (AV *)GENSUB_ARG;	2767	AV *state = (AV *)S_GENSUB_ARG;
2631	SV *coro = av_pop (state);	2768	SV *coro = av_pop (state);
2632	SV *data_sv = newSV (sizeof (struct io_state));	2769	SV *data_sv = newSV (sizeof (struct io_state));
2633		2770
2634	av_extend (state, items - 1);	2771	av_extend (state, items - 1);
2635		2772
…		…
2749		2886
2750	for (i = 0; i < items; ++i)	2887	for (i = 0; i < items; ++i)
2751	PUSHs (arg [i]);	2888	PUSHs (arg [i]);
2752		2889
2753	/* now push the callback closure */	2890	/* now push the callback closure */
2754	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	2891	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2755		2892
2756	/* now call the AIO function - we assume our request is uncancelable */	2893	/* now call the AIO function - we assume our request is uncancelable */
2757	PUTBACK;	2894	PUTBACK;
2758	call_sv ((SV *)req, G_VOID | G_DISCARD);	2895	call_sv ((SV *)req, G_VOID | G_DISCARD);
2759	}	2896	}
…		…
2777	/*****************************************************************************/	2914	/*****************************************************************************/
2778		2915
2779	#if CORO_CLONE	2916	#if CORO_CLONE
2780	# include "clone.c"	2917	# include "clone.c"
2781	#endif	2918	#endif
		2919
		2920	/*****************************************************************************/
		2921
		2922	static SV *
		2923	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		2924	{
		2925	SV *coro_sv;
		2926	struct coro *coro;
		2927	MAGIC *mg;
		2928	HV *hv;
		2929	SV *cb;
		2930	int i;
		2931
		2932	if (argc > 0)
		2933	{
		2934	cb = s_get_cv_croak (argv [0]);
		2935
		2936	if (!is_coro)
		2937	{
		2938	if (CvISXSUB (cb))
		2939	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2940
		2941	if (!CvROOT (cb))
		2942	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2943	}
		2944	}
		2945
		2946	Newz (0, coro, 1, struct coro);
		2947	coro->args = newAV ();
		2948	coro->flags = CF_NEW;
		2949
		2950	if (coro_first) coro_first->prev = coro;
		2951	coro->next = coro_first;
		2952	coro_first = coro;
		2953
		2954	coro->hv = hv = newHV ();
		2955	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		2956	mg->mg_flags |= MGf_DUP;
		2957	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		2958
		2959	if (argc > 0)
		2960	{
		2961	av_extend (coro->args, argc + is_coro - 1);
		2962
		2963	if (is_coro)
		2964	{
		2965	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2966	cb = (SV *)cv_coro_run;
		2967	}
		2968
		2969	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2970
		2971	for (i = 1; i < argc; i++)
		2972	av_push (coro->args, newSVsv (argv [i]));
		2973	}
		2974
		2975	return coro_sv;
		2976	}
2782		2977
2783	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2978	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2784		2979
2785	PROTOTYPES: DISABLE	2980	PROTOTYPES: DISABLE
2786		2981
…		…
2846		3041
2847	if (!svp) croak ("Time::HiRes is required");	3042	if (!svp) croak ("Time::HiRes is required");
2848	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	3043	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2849		3044
2850	nvtime = INT2PTR (double (*)(), SvIV (*svp));	3045	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		3046
		3047	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		3048	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2851	}	3049	}
2852		3050
2853	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	3051	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2854	}	3052	}
2855		3053
2856	SV *	3054	SV *
2857	new (char *klass, ...)	3055	new (SV *klass, ...)
2858	ALIAS:	3056	ALIAS:
2859	Coro::new = 1	3057	Coro::new = 1
2860	CODE:	3058	CODE:
2861	{	3059	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2862	struct coro *coro;	3060	OUTPUT:
2863	MAGIC *mg;
2864	HV *hv;
2865	CV *cb;
2866	int i;
2867
2868	if (items > 1)
2869	{
2870	cb = coro_sv_2cv (aTHX_ ST (1));
2871
2872	if (!ix)
2873	{
2874	if (CvISXSUB (cb))
2875	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2876
2877	if (!CvROOT (cb))
2878	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2879	}
2880	}
2881
2882	Newz (0, coro, 1, struct coro);
2883	coro->args = newAV ();
2884	coro->flags = CF_NEW;
2885
2886	if (coro_first) coro_first->prev = coro;
2887	coro->next = coro_first;
2888	coro_first = coro;
2889
2890	coro->hv = hv = newHV ();
2891	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2892	mg->mg_flags |= MGf_DUP;
2893	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2894
2895	if (items > 1)
2896	{
2897	av_extend (coro->args, items - 1 + ix - 1);
2898
2899	if (ix)
2900	{
2901	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2902	cb = cv_coro_run;
2903	}
2904
2905	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2906
2907	for (i = 2; i < items; i++)
2908	av_push (coro->args, newSVsv (ST (i)));
2909	}
2910	}
2911	OUTPUT:
2912	RETVAL	3061	RETVAL
2913		3062
2914	void	3063	void
2915	transfer (...)	3064	transfer (...)
2916	PROTOTYPE: $$	3065	PROTOTYPE: $$
…		…
3005	eval = 1	3154	eval = 1
3006	CODE:	3155	CODE:
3007	{	3156	{
3008	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3157	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3009	{	3158	{
3010	struct coro temp;	3159	struct coro *current = SvSTATE_current;
3011		3160
3012	if (!(coro->flags & CF_RUNNING))	3161	if (current != coro)
3013	{	3162	{
3014	PUTBACK;	3163	PUTBACK;
3015	save_perl (aTHX_ &temp);	3164	save_perl (aTHX_ current);
3016	load_perl (aTHX_ coro);	3165	load_perl (aTHX_ coro);
		3166	SPAGAIN;
3017	}	3167	}
3018		3168
3019	{
3020	dSP;
3021	ENTER;
3022	SAVETMPS;
3023	PUTBACK;
3024	PUSHSTACK;	3169	PUSHSTACK;
		3170
3025	PUSHMARK (SP);	3171	PUSHMARK (SP);
		3172	PUTBACK;
3026		3173
3027	if (ix)	3174	if (ix)
3028	eval_sv (coderef, 0);	3175	eval_sv (coderef, 0);
3029	else	3176	else
3030	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3177	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3031		3178
3032	POPSTACK;	3179	POPSTACK;
3033	SPAGAIN;	3180	SPAGAIN;
3034	FREETMPS;
3035	LEAVE;
3036	PUTBACK;
3037	}
3038		3181
3039	if (!(coro->flags & CF_RUNNING))	3182	if (current != coro)
3040	{	3183	{
		3184	PUTBACK;
3041	save_perl (aTHX_ coro);	3185	save_perl (aTHX_ coro);
3042	load_perl (aTHX_ &temp);	3186	load_perl (aTHX_ current);
3043	SPAGAIN;	3187	SPAGAIN;
3044	}	3188	}
3045	}	3189	}
3046	}	3190	}
3047		3191
…		…
3051	ALIAS:	3195	ALIAS:
3052	is_ready = CF_READY	3196	is_ready = CF_READY
3053	is_running = CF_RUNNING	3197	is_running = CF_RUNNING
3054	is_new = CF_NEW	3198	is_new = CF_NEW
3055	is_destroyed = CF_DESTROYED	3199	is_destroyed = CF_DESTROYED
		3200	is_suspended = CF_SUSPENDED
3056	CODE:	3201	CODE:
3057	RETVAL = boolSV (coro->flags & ix);	3202	RETVAL = boolSV (coro->flags & ix);
3058	OUTPUT:	3203	OUTPUT:
3059	RETVAL	3204	RETVAL
3060		3205
…		…
3064	CODE:	3209	CODE:
3065	{	3210	{
3066	struct coro *current = SvSTATE_current;	3211	struct coro *current = SvSTATE_current;
3067	SV **throwp = self == current ? &CORO_THROW : &self->except;	3212	SV **throwp = self == current ? &CORO_THROW : &self->except;
3068	SvREFCNT_dec (*throwp);	3213	SvREFCNT_dec (*throwp);
		3214	SvGETMAGIC (throw);
3069	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3215	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
3070	}	3216	}
3071		3217
3072	void	3218	void
3073	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3219	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
…		…
3125	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3271	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3126		3272
3127	SV *tmp = *src; *src = *dst; *dst = tmp;	3273	SV *tmp = *src; *src = *dst; *dst = tmp;
3128	}	3274	}
3129		3275
		3276	void
		3277	cancel (Coro::State self)
		3278	CODE:
		3279	coro_state_destroy (aTHX_ self);
		3280	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3281
		3282
		3283	SV *
		3284	enable_times (int enabled = enable_times)
		3285	CODE:
		3286	{
		3287	RETVAL = boolSV (enable_times);
		3288
		3289	if (enabled != enable_times)
		3290	{
		3291	enable_times = enabled;
		3292
		3293	coro_times_update ();
		3294	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3295	}
		3296	}
		3297	OUTPUT:
		3298	RETVAL
		3299
		3300	void
		3301	times (Coro::State self)
		3302	PPCODE:
		3303	{
		3304	struct coro *current = SvSTATE (coro_current);
		3305
		3306	if (expect_false (current == self))
		3307	{
		3308	coro_times_update ();
		3309	coro_times_add (SvSTATE (coro_current));
		3310	}
		3311
		3312	EXTEND (SP, 2);
		3313	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3314	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3315
		3316	if (expect_false (current == self))
		3317	coro_times_sub (SvSTATE (coro_current));
		3318	}
3130		3319
3131	MODULE = Coro::State PACKAGE = Coro	3320	MODULE = Coro::State PACKAGE = Coro
3132		3321
3133	BOOT:	3322	BOOT:
3134	{	3323	{
3135	int i;
3136
3137	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3324	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3138	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3325	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3139	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);	3326	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3140	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3327	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3141	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3328	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
…		…
3145	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);	3332	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3146		3333
3147	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3334	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3148	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3335	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3149	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3336	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3150	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3337	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3151		3338
3152	coro_stash = gv_stashpv ("Coro", TRUE);	3339	coro_stash = gv_stashpv ("Coro", TRUE);
3153		3340
3154	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3341	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3155	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3342	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3156	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3343	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3157	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3344	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3158	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3345	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3159	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3346	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3160
3161	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3162	coro_ready[i] = newAV ();
3163		3347
3164	{	3348	{
3165	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3349	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3166		3350
3167	coroapi.schedule = api_schedule;	3351	coroapi.schedule = api_schedule;
…		…
3177	sv_setiv (sv, (IV)&coroapi);	3361	sv_setiv (sv, (IV)&coroapi);
3178	SvREADONLY_on (sv);	3362	SvREADONLY_on (sv);
3179	}	3363	}
3180	}	3364	}
3181		3365
		3366	SV *
		3367	async (...)
		3368	PROTOTYPE: &@
		3369	CODE:
		3370	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3371	api_ready (aTHX_ RETVAL);
		3372	OUTPUT:
		3373	RETVAL
		3374
3182	void	3375	void
3183	terminate (...)	3376	terminate (...)
3184	CODE:	3377	CODE:
3185	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3378	CORO_EXECUTE_SLF_XS (slf_init_terminate);
3186		3379
…		…
3206		3399
3207	void	3400	void
3208	cede_notself (...)	3401	cede_notself (...)
3209	CODE:	3402	CODE:
3210	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3403	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3211
3212	void
3213	_cancel (Coro::State self)
3214	CODE:
3215	coro_state_destroy (aTHX_ self);
3216	coro_call_on_destroy (aTHX_ self);
3217		3404
3218	void	3405	void
3219	_set_current (SV *current)	3406	_set_current (SV *current)
3220	PROTOTYPE: $	3407	PROTOTYPE: $
3221	CODE:	3408	CODE:
…		…
3225	void	3412	void
3226	_set_readyhook (SV *hook)	3413	_set_readyhook (SV *hook)
3227	PROTOTYPE: $	3414	PROTOTYPE: $
3228	CODE:	3415	CODE:
3229	SvREFCNT_dec (coro_readyhook);	3416	SvREFCNT_dec (coro_readyhook);
		3417	SvGETMAGIC (hook);
		3418	if (SvOK (hook))
		3419	{
3230	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3420	coro_readyhook = newSVsv (hook);
		3421	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3422	}
		3423	else
		3424	{
		3425	coro_readyhook = 0;
		3426	CORO_READYHOOK = 0;
		3427	}
3231		3428
3232	int	3429	int
3233	prio (Coro::State coro, int newprio = 0)	3430	prio (Coro::State coro, int newprio = 0)
3234	PROTOTYPE: $;$	3431	PROTOTYPE: $;$
3235	ALIAS:	3432	ALIAS:
…		…
3241	if (items > 1)	3438	if (items > 1)
3242	{	3439	{
3243	if (ix)	3440	if (ix)
3244	newprio = coro->prio - newprio;	3441	newprio = coro->prio - newprio;
3245		3442
3246	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3443	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3247	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3444	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3248		3445
3249	coro->prio = newprio;	3446	coro->prio = newprio;
3250	}	3447	}
3251	}	3448	}
3252	OUTPUT:	3449	OUTPUT:
…		…
3267	RETVAL = coro_nready;	3464	RETVAL = coro_nready;
3268	OUTPUT:	3465	OUTPUT:
3269	RETVAL	3466	RETVAL
3270		3467
3271	void	3468	void
		3469	suspend (Coro::State self)
		3470	PROTOTYPE: $
		3471	CODE:
		3472	self->flags |= CF_SUSPENDED;
		3473
		3474	void
		3475	resume (Coro::State self)
		3476	PROTOTYPE: $
		3477	CODE:
		3478	self->flags &= ~CF_SUSPENDED;
		3479
		3480	void
3272	_pool_handler (...)	3481	_pool_handler (...)
3273	CODE:	3482	CODE:
3274	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3483	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3275		3484
3276	void	3485	void
…		…
3287	for (i = 1; i < items; ++i)	3496	for (i = 1; i < items; ++i)
3288	av_push (av, SvREFCNT_inc_NN (ST (i)));	3497	av_push (av, SvREFCNT_inc_NN (ST (i)));
3289		3498
3290	if ((SV *)hv == &PL_sv_undef)	3499	if ((SV *)hv == &PL_sv_undef)
3291	{	3500	{
3292	PUSHMARK (SP);	3501	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3293	EXTEND (SP, 2);
3294	PUSHs (sv_Coro);
3295	PUSHs ((SV *)cv_pool_handler);
3296	PUTBACK;
3297	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3298	SPAGAIN;
3299
3300	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3502	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3503	SvREFCNT_dec (sv);
3301	}	3504	}
3302		3505
3303	{	3506	{
3304	struct coro *coro = SvSTATE_hv (hv);	3507	struct coro *coro = SvSTATE_hv (hv);
3305		3508
…		…
3329	rouse_wait (...)	3532	rouse_wait (...)
3330	PROTOTYPE: ;$	3533	PROTOTYPE: ;$
3331	PPCODE:	3534	PPCODE:
3332	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3535	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3333		3536
		3537	void
		3538	on_enter (SV *block)
		3539	ALIAS:
		3540	on_leave = 1
		3541	PROTOTYPE: &
		3542	CODE:
		3543	{
		3544	struct coro *coro = SvSTATE_current;
		3545	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3546
		3547	block = s_get_cv_croak (block);
		3548
		3549	if (!*avp)
		3550	*avp = newAV ();
		3551
		3552	av_push (*avp, SvREFCNT_inc (block));
		3553
		3554	if (!ix)
		3555	on_enterleave_call (aTHX_ block);
		3556
		3557	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3558	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3559	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3560	}
		3561
3334		3562
3335	MODULE = Coro::State PACKAGE = PerlIO::cede	3563	MODULE = Coro::State PACKAGE = PerlIO::cede
3336		3564
3337	BOOT:	3565	BOOT:
3338	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3566	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3341	MODULE = Coro::State PACKAGE = Coro::Semaphore	3569	MODULE = Coro::State PACKAGE = Coro::Semaphore
3342		3570
3343	SV *	3571	SV *
3344	new (SV *klass, SV *count = 0)	3572	new (SV *klass, SV *count = 0)
3345	CODE:	3573	CODE:
		3574	{
		3575	int semcnt = 1;
		3576
		3577	if (count)
		3578	{
		3579	SvGETMAGIC (count);
		3580
		3581	if (SvOK (count))
		3582	semcnt = SvIV (count);
		3583	}
		3584
3346	RETVAL = sv_bless (	3585	RETVAL = sv_bless (
3347	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3586	coro_waitarray_new (aTHX_ semcnt),
3348	GvSTASH (CvGV (cv))	3587	GvSTASH (CvGV (cv))
3349	);	3588	);
		3589	}
3350	OUTPUT:	3590	OUTPUT:
3351	RETVAL	3591	RETVAL
3352		3592
3353	# helper for Coro::Channel	3593	# helper for Coro::Channel and others
3354	SV *	3594	SV *
3355	_alloc (int count)	3595	_alloc (int count)
3356	CODE:	3596	CODE:
3357	RETVAL = coro_waitarray_new (aTHX_ count);	3597	RETVAL = coro_waitarray_new (aTHX_ count);
3358	OUTPUT:	3598	OUTPUT:
…		…
3416	for (i = 1; i <= wcount; ++i)	3656	for (i = 1; i <= wcount; ++i)
3417	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3657	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3418	}	3658	}
3419	}	3659	}
3420		3660
		3661	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3662
		3663	void
		3664	_may_delete (SV *sem, int count, int extra_refs)
		3665	PPCODE:
		3666	{
		3667	AV *av = (AV *)SvRV (sem);
		3668
		3669	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3670	&& AvFILLp (av) == 0 /* no waiters, just count */
		3671	&& SvIV (AvARRAY (av)[0]) == count)
		3672	XSRETURN_YES;
		3673
		3674	XSRETURN_NO;
		3675	}
		3676
3421	MODULE = Coro::State PACKAGE = Coro::Signal	3677	MODULE = Coro::State PACKAGE = Coro::Signal
3422		3678
3423	SV *	3679	SV *
3424	new (SV *klass)	3680	new (SV *klass)
3425	CODE:	3681	CODE:
…		…
3496		3752
3497	void	3753	void
3498	_register (char *target, char *proto, SV *req)	3754	_register (char *target, char *proto, SV *req)
3499	CODE:	3755	CODE:
3500	{	3756	{
3501	CV *req_cv = coro_sv_2cv (aTHX_ req);	3757	SV *req_cv = s_get_cv_croak (req);
3502	/* newXSproto doesn't return the CV on 5.8 */	3758	/* newXSproto doesn't return the CV on 5.8 */
3503	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3759	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3504	sv_setpv ((SV *)slf_cv, proto);	3760	sv_setpv ((SV *)slf_cv, proto);
3505	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3761	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3506	}	3762	}
3507		3763
		3764	MODULE = Coro::State PACKAGE = Coro::Select
		3765
		3766	void
		3767	patch_pp_sselect ()
		3768	CODE:
		3769	if (!coro_old_pp_sselect)
		3770	{
		3771	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3772	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3773	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3774	}
		3775
		3776	void
		3777	unpatch_pp_sselect ()
		3778	CODE:
		3779	if (coro_old_pp_sselect)
		3780	{
		3781	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3782	coro_old_pp_sselect = 0;
		3783	}
		3784
		3785

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