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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.322 by root, Sat Nov 22 05:13:34 2008 UTC vs.
Revision 1.372 by root, Thu Oct 1 23:50:23 2009 UTC

…		…
6	#include "EXTERN.h"	6	#include "EXTERN.h"
7	#include "perl.h"	7	#include "perl.h"
8	#include "XSUB.h"	8	#include "XSUB.h"
9	#include "perliol.h"	9	#include "perliol.h"
10		10
11	#include "patchlevel.h"	11	#include "schmorp.h"
12		12
13	#include <stdio.h>	13	#include <stdio.h>
14	#include <errno.h>	14	#include <errno.h>
15	#include <assert.h>	15	#include <assert.h>
16		16
…		…
51	#endif	51	#endif
52		52
53	/* the maximum number of idle cctx that will be pooled */	53	/* the maximum number of idle cctx that will be pooled */
54	static int cctx_max_idle = 4;	54	static int cctx_max_idle = 4;
55		55
56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr
65	# endif
66	# ifndef call_sv
67	# define call_sv perl_call_sv
68	# endif
69	# ifndef get_sv
70	# define get_sv perl_get_sv
71	# endif
72	# ifndef get_cv
73	# define get_cv perl_get_cv
74	# endif
75	# ifndef IS_PADGV
76	# define IS_PADGV(v) 0
77	# endif
78	# ifndef IS_PADCONST
79	# define IS_PADCONST(v) 0
80	# endif
81	#endif
82
83	/* 5.11 */
84	#ifndef CxHASARGS
85	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86	#endif
87
88	/* 5.10.0 */
89	#ifndef SvREFCNT_inc_NN
90	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91	#endif
92
93	/* 5.8.8 */
94	#ifndef GV_NOTQUAL
95	# define GV_NOTQUAL 0
96	#endif
97	#ifndef newSV
98	# define newSV(l) NEWSV(0,l)
99	#endif
100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv
102	#endif
103	#ifndef CvISXSUB
104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105	#endif
106	#ifndef Newx
107	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108	#endif
109
110	/* 5.8.7 */
111	#ifndef SvRV_set
112	# define SvRV_set(s,v) SvRV(s) = (v)
113	#endif
114
115	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	56	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116	# undef CORO_STACKGUARD	57	# undef CORO_STACKGUARD
117	#endif	58	#endif
118		59
119	#ifndef CORO_STACKGUARD	60	#ifndef CORO_STACKGUARD
…		…
133	#else	74	#else
134	# define dSTACKLEVEL volatile void *stacklevel	75	# define dSTACKLEVEL volatile void *stacklevel
135	# define STACKLEVEL ((void *)&stacklevel)	76	# define STACKLEVEL ((void *)&stacklevel)
136	#endif	77	#endif
137		78
138	#define IN_DESTRUCT (PL_main_cv == Nullcv)	79	#define IN_DESTRUCT PL_dirty
139		80
140	#if __GNUC__ >= 3	81	#if __GNUC__ >= 3
141	# define attribute(x) __attribute__(x)	82	# define attribute(x) __attribute__(x)
142	# define expect(expr,value) __builtin_expect ((expr),(value))	83	# define expect(expr,value) __builtin_expect ((expr), (value))
143	# define INLINE static inline	84	# define INLINE static inline
144	#else	85	#else
145	# define attribute(x)	86	# define attribute(x)
146	# define expect(expr,value) (expr)	87	# define expect(expr,value) (expr)
147	# define INLINE static	88	# define INLINE static
…		…
159	# if CORO_PTHREAD	100	# if CORO_PTHREAD
160	static void *coro_thx;	101	static void *coro_thx;
161	# endif	102	# endif
162	#endif	103	#endif
163		104
		105	#ifdef __linux
		106	# include <time.h> /* for timespec */
		107	# include <syscall.h> /* for SYS_* */
		108	# ifdef SYS_clock_gettime
		109	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		110	# define CORO_CLOCK_MONOTONIC 1
		111	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
		112	# endif
		113	#endif
		114
164	static double (*nvtime)(); /* so why doesn't it take void? */	115	static double (*nvtime)(); /* so why doesn't it take void? */
		116	static void (*u2time)(pTHX_ UV ret[2]);
165		117
166	/* we hijack an hopefully unused CV flag for our purposes */	118	/* we hijack an hopefully unused CV flag for our purposes */
167	#define CVf_SLF 0x4000	119	#define CVf_SLF 0x4000
168	static OP *pp_slf (pTHX);	120	static OP *pp_slf (pTHX);
169		121
…		…
175	static HV *coro_state_stash, *coro_stash;	127	static HV *coro_state_stash, *coro_stash;
176	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */	128	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
177		129
178	static AV *av_destroy; /* destruction queue */	130	static AV *av_destroy; /* destruction queue */
179	static SV *sv_manager; /* the manager coro */	131	static SV *sv_manager; /* the manager coro */
		132	static SV *sv_idle; /* $Coro::idle */
180		133
181	static GV *irsgv; /* $/ */	134	static GV *irsgv; /* $/ */
182	static GV *stdoutgv; /* *STDOUT */	135	static GV *stdoutgv; /* *STDOUT */
183	static SV *rv_diehook;	136	static SV *rv_diehook;
184	static SV *rv_warnhook;	137	static SV *rv_warnhook;
…		…
189	static SV *sv_pool_size;	142	static SV *sv_pool_size;
190	static SV *sv_async_pool_idle; /* description string */	143	static SV *sv_async_pool_idle; /* description string */
191	static AV *av_async_pool; /* idle pool */	144	static AV *av_async_pool; /* idle pool */
192	static SV *sv_Coro; /* class string */	145	static SV *sv_Coro; /* class string */
193	static CV *cv_pool_handler;	146	static CV *cv_pool_handler;
194	static CV *cv_coro_state_new;
195		147
196	/* Coro::AnyEvent */	148	/* Coro::AnyEvent */
197	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;
198		156
199	static struct coro_cctx *cctx_first;	157	static struct coro_cctx *cctx_first;
200	static int cctx_count, cctx_idle;	158	static int cctx_count, cctx_idle;
201		159
202	enum {	160	enum {
…		…
237	enum {	195	enum {
238	CF_RUNNING = 0x0001, /* coroutine is running */	196	CF_RUNNING = 0x0001, /* coroutine is running */
239	CF_READY = 0x0002, /* coroutine is ready */	197	CF_READY = 0x0002, /* coroutine is ready */
240	CF_NEW = 0x0004, /* has never been switched to */	198	CF_NEW = 0x0004, /* has never been switched to */
241	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 */
242	};	201	};
243		202
244	/* 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 */
245	typedef struct	204	typedef struct
246	{	205	{
247	SV *defsv;	206	SV *defsv;
248	AV *defav;	207	AV *defav;
249	SV *errsv;	208	SV *errsv;
250	SV *irsgv;	209	SV *irsgv;
		210	HV *hinthv;
251	#define VAR(name,type) type name;	211	#define VAR(name,type) type name;
252	# include "state.h"	212	# include "state.h"
253	#undef VAR	213	#undef VAR
254	} perl_slots;	214	} perl_slots;
255		215
…		…
257		217
258	/* this is a structure representing a perl-level coroutine */	218	/* this is a structure representing a perl-level coroutine */
259	struct coro {	219	struct coro {
260	/* the C coroutine allocated to this perl coroutine, if any */	220	/* the C coroutine allocated to this perl coroutine, if any */
261	coro_cctx *cctx;	221	coro_cctx *cctx;
		222
		223	/* ready queue */
		224	struct coro *next_ready;
262		225
263	/* state data */	226	/* state data */
264	struct CoroSLF slf_frame; /* saved slf frame */	227	struct CoroSLF slf_frame; /* saved slf frame */
265	AV *mainstack;	228	AV *mainstack;
266	perl_slots *slot; /* basically the saved sp */	229	perl_slots *slot; /* basically the saved sp */
…		…
283	/* async_pool */	246	/* async_pool */
284	SV *saved_deffh;	247	SV *saved_deffh;
285	SV *invoke_cb;	248	SV *invoke_cb;
286	AV *invoke_av;	249	AV *invoke_av;
287		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
288	/* linked list */	258	/* linked list */
289	struct coro *next, *prev;	259	struct coro *next, *prev;
290	};	260	};
291		261
292	typedef struct coro *Coro__State;	262	typedef struct coro *Coro__State;
…		…
297	/* the mainr easonw e don't support windows process emulation */	267	/* the mainr easonw e don't support windows process emulation */
298	static struct CoroSLF slf_frame; /* the current slf frame */	268	static struct CoroSLF slf_frame; /* the current slf frame */
299		269
300	/** Coro ********************************************************************/	270	/** Coro ********************************************************************/
301		271
302	#define PRIO_MAX 3	272	#define CORO_PRIO_MAX 3
303	#define PRIO_HIGH 1	273	#define CORO_PRIO_HIGH 1
304	#define PRIO_NORMAL 0	274	#define CORO_PRIO_NORMAL 0
305	#define PRIO_LOW -1	275	#define CORO_PRIO_LOW -1
306	#define PRIO_IDLE -3	276	#define CORO_PRIO_IDLE -3
307	#define PRIO_MIN -4	277	#define CORO_PRIO_MIN -4
308		278
309	/* for Coro.pm */	279	/* for Coro.pm */
310	static SV *coro_current;	280	static SV *coro_current;
311	static SV *coro_readyhook;	281	static SV *coro_readyhook;
312	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 */
313	static CV *cv_coro_run, *cv_coro_terminate;	283	static CV *cv_coro_run, *cv_coro_terminate;
314	static struct coro *coro_first;	284	static struct coro *coro_first;
315	#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	}
316		306
317	/** lowlevel stuff **********************************************************/	307	/** lowlevel stuff **********************************************************/
318		308
319	static SV *	309	static SV *
320	coro_get_sv (pTHX_ const char *name, int create)	310	coro_get_sv (pTHX_ const char *name, int create)
…		…
344	get_hv (name, create);	334	get_hv (name, create);
345	#endif	335	#endif
346	return get_hv (name, create);	336	return get_hv (name, create);
347	}	337	}
348		338
349	/* may croak */	339	INLINE void
350	INLINE CV *	340	coro_times_update ()
351	coro_sv_2cv (pTHX_ SV *sv)
352	{	341	{
		342	#ifdef coro_clock_gettime
		343	struct timespec ts;
		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];
		384	}
		385
		386	/*****************************************************************************/
		387	/* magic glue */
		388
		389	#define CORO_MAGIC_type_cv 26
		390	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		391
		392	#define CORO_MAGIC_NN(sv, type) \
		393	(expect_true (SvMAGIC (sv)->mg_type == type) \
		394	? SvMAGIC (sv) \
		395	: mg_find (sv, type))
		396
		397	#define CORO_MAGIC(sv, type) \
		398	(expect_true (SvMAGIC (sv)) \
		399	? CORO_MAGIC_NN (sv, type) \
		400	: 0)
		401
		402	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		403	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		404
		405	INLINE struct coro *
		406	SvSTATE_ (pTHX_ SV *coro)
		407	{
353	HV *st;	408	HV *stash;
354	GV *gvp;	409	MAGIC *mg;
355	return sv_2cv (sv, &st, &gvp, 0);	410
		411	if (SvROK (coro))
		412	coro = SvRV (coro);
		413
		414	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		415	croak ("Coro::State object required");
		416
		417	stash = SvSTASH (coro);
		418	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		419	{
		420	/* very slow, but rare, check */
		421	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		422	croak ("Coro::State object required");
		423	}
		424
		425	mg = CORO_MAGIC_state (coro);
		426	return (struct coro *)mg->mg_ptr;
356	}	427	}
		428
		429	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		430
		431	/* faster than SvSTATE, but expects a coroutine hv */
		432	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		433	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		434
		435	/*****************************************************************************/
		436	/* padlist management and caching */
357		437
358	static AV *	438	static AV *
359	coro_derive_padlist (pTHX_ CV *cv)	439	coro_derive_padlist (pTHX_ CV *cv)
360	{	440	{
361	AV *padlist = CvPADLIST (cv);	441	AV *padlist = CvPADLIST (cv);
…		…
369	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	449	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
370	#endif	450	#endif
371	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	451	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
372	--AvFILLp (padlist);	452	--AvFILLp (padlist);
373		453
374	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	454	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
375	av_store (newpadlist, 1, (SV *)newpad);	455	av_store (newpadlist, 1, (SV *)newpad);
376		456
377	return newpadlist;	457	return newpadlist;
378	}	458	}
379		459
380	static void	460	static void
381	free_padlist (pTHX_ AV *padlist)	461	free_padlist (pTHX_ AV *padlist)
382	{	462	{
383	/* may be during global destruction */	463	/* may be during global destruction */
384	if (SvREFCNT (padlist))	464	if (!IN_DESTRUCT)
385	{	465	{
386	I32 i = AvFILLp (padlist);	466	I32 i = AvFILLp (padlist);
387	while (i >= 0)	467
		468	while (i > 0) /* special-case index 0 */
388	{	469	{
389	SV **svp = av_fetch (padlist, i--, FALSE);	470	/* we try to be extra-careful here */
390	if (svp)	471	AV *av = (AV *)AvARRAY (padlist)[i--];
391	{	472	I32 j = AvFILLp (av);
392	SV *sv;	473
393	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	474	while (j >= 0)
		475	SvREFCNT_dec (AvARRAY (av)[j--]);
		476
		477	AvFILLp (av) = -1;
394	SvREFCNT_dec (sv);	478	SvREFCNT_dec (av);
395
396	SvREFCNT_dec (*svp);
397	}
398	}	479	}
399		480
		481	SvREFCNT_dec (AvARRAY (padlist)[0]);
		482
		483	AvFILLp (padlist) = -1;
400	SvREFCNT_dec ((SV*)padlist);	484	SvREFCNT_dec ((SV*)padlist);
401	}	485	}
402	}	486	}
403		487
404	static int	488	static int
405	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	489	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
406	{	490	{
407	AV *padlist;	491	AV *padlist;
408	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;
409		497
410	/* casting is fun. */	498	/* casting is fun. */
411	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	499	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
412	free_padlist (aTHX_ padlist);	500	free_padlist (aTHX_ padlist);
413		501
414	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	502	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
415		503
416	return 0;	504	return 0;
417	}	505	}
418
419	#define CORO_MAGIC_type_cv 26
420	#define CORO_MAGIC_type_state PERL_MAGIC_ext
421		506
422	static MGVTBL coro_cv_vtbl = {	507	static MGVTBL coro_cv_vtbl = {
423	0, 0, 0, 0,	508	0, 0, 0, 0,
424	coro_cv_free	509	coro_cv_free
425	};	510	};
426
427	#define CORO_MAGIC_NN(sv, type) \
428	(expect_true (SvMAGIC (sv)->mg_type == type) \
429	? SvMAGIC (sv) \
430	: mg_find (sv, type))
431
432	#define CORO_MAGIC(sv, type) \
433	(expect_true (SvMAGIC (sv)) \
434	? CORO_MAGIC_NN (sv, type) \
435	: 0)
436
437	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
438	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
439
440	INLINE struct coro *
441	SvSTATE_ (pTHX_ SV *coro)
442	{
443	HV *stash;
444	MAGIC *mg;
445
446	if (SvROK (coro))
447	coro = SvRV (coro);
448
449	if (expect_false (SvTYPE (coro) != SVt_PVHV))
450	croak ("Coro::State object required");
451
452	stash = SvSTASH (coro);
453	if (expect_false (stash != coro_stash && stash != coro_state_stash))
454	{
455	/* very slow, but rare, check */
456	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
457	croak ("Coro::State object required");
458	}
459
460	mg = CORO_MAGIC_state (coro);
461	return (struct coro *)mg->mg_ptr;
462	}
463
464	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
465
466	/* faster than SvSTATE, but expects a coroutine hv */
467	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
468	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
469		511
470	/* the next two functions merely cache the padlists */	512	/* the next two functions merely cache the padlists */
471	static void	513	static void
472	get_padlist (pTHX_ CV *cv)	514	get_padlist (pTHX_ CV *cv)
473	{	515	{
…		…
501	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	543	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
502		544
503	av = (AV *)mg->mg_obj;	545	av = (AV *)mg->mg_obj;
504		546
505	if (expect_false (AvFILLp (av) >= AvMAX (av)))	547	if (expect_false (AvFILLp (av) >= AvMAX (av)))
506	av_extend (av, AvMAX (av) + 1);	548	av_extend (av, AvFILLp (av) + 1);
507		549
508	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	550	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
509	}	551	}
510		552
511	/** load & save, init *******************************************************/	553	/** load & save, init *******************************************************/
		554
		555	static void
		556	on_enterleave_call (pTHX_ SV *cb);
512		557
513	static void	558	static void
514	load_perl (pTHX_ Coro__State c)	559	load_perl (pTHX_ Coro__State c)
515	{	560	{
516	perl_slots *slot = c->slot;	561	perl_slots *slot = c->slot;
517	c->slot = 0;	562	c->slot = 0;
518		563
519	PL_mainstack = c->mainstack;	564	PL_mainstack = c->mainstack;
520		565
521	GvSV (PL_defgv) = slot->defsv;	566	GvSV (PL_defgv) = slot->defsv;
522	GvAV (PL_defgv) = slot->defav;	567	GvAV (PL_defgv) = slot->defav;
523	GvSV (PL_errgv) = slot->errsv;	568	GvSV (PL_errgv) = slot->errsv;
524	GvSV (irsgv) = slot->irsgv;	569	GvSV (irsgv) = slot->irsgv;
		570	GvHV (PL_hintgv) = slot->hinthv;
525		571
526	#define VAR(name,type) PL_ ## name = slot->name;	572	#define VAR(name,type) PL_ ## name = slot->name;
527	# include "state.h"	573	# include "state.h"
528	#undef VAR	574	#undef VAR
529		575
…		…
543	PUTBACK;	589	PUTBACK;
544	}	590	}
545		591
546	slf_frame = c->slf_frame;	592	slf_frame = c->slf_frame;
547	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	}
548	}	610	}
549		611
550	static void	612	static void
551	save_perl (pTHX_ Coro__State c)	613	save_perl (pTHX_ Coro__State c)
552	{	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
553	c->except = CORO_THROW;	631	c->except = CORO_THROW;
554	c->slf_frame = slf_frame;	632	c->slf_frame = slf_frame;
555		633
556	{	634	{
557	dSP;	635	dSP;
…		…
570	{	648	{
571	while (expect_true (cxix >= 0))	649	while (expect_true (cxix >= 0))
572	{	650	{
573	PERL_CONTEXT *cx = &ccstk[cxix--];	651	PERL_CONTEXT *cx = &ccstk[cxix--];
574		652
575	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))
576	{	654	{
577	CV *cv = cx->blk_sub.cv;	655	CV *cv = cx->blk_sub.cv;
578		656
579	if (expect_true (CvDEPTH (cv)))	657	if (expect_true (CvDEPTH (cv)))
580	{	658	{
…		…
604	/* we manually unroll here, as usually 2 slots is enough */	682	/* we manually unroll here, as usually 2 slots is enough */
605	if (SLOT_COUNT >= 1) CXINC;	683	if (SLOT_COUNT >= 1) CXINC;
606	if (SLOT_COUNT >= 2) CXINC;	684	if (SLOT_COUNT >= 2) CXINC;
607	if (SLOT_COUNT >= 3) CXINC;	685	if (SLOT_COUNT >= 3) CXINC;
608	{	686	{
609	int i;	687	unsigned int i;
610	for (i = 3; i < SLOT_COUNT; ++i)	688	for (i = 3; i < SLOT_COUNT; ++i)
611	CXINC;	689	CXINC;
612	}	690	}
613	cxstack_ix -= SLOT_COUNT; /* undo allocation */	691	cxstack_ix -= SLOT_COUNT; /* undo allocation */
614		692
615	c->mainstack = PL_mainstack;	693	c->mainstack = PL_mainstack;
616		694
617	{	695	{
618	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	696	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
619		697
620	slot->defav = GvAV (PL_defgv);	698	slot->defav = GvAV (PL_defgv);
621	slot->defsv = DEFSV;	699	slot->defsv = DEFSV;
622	slot->errsv = ERRSV;	700	slot->errsv = ERRSV;
623	slot->irsgv = GvSV (irsgv);	701	slot->irsgv = GvSV (irsgv);
		702	slot->hinthv = GvHV (PL_hintgv);
624		703
625	#define VAR(name,type) slot->name = PL_ ## name;	704	#define VAR(name,type) slot->name = PL_ ## name;
626	# include "state.h"	705	# include "state.h"
627	#undef VAR	706	#undef VAR
628	}	707	}
…		…
755	#endif	834	#endif
756		835
757	/*	836	/*
758	* This overrides the default magic get method of %SIG elements.	837	* This overrides the default magic get method of %SIG elements.
759	* 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
760	* 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
761	* readback here.	840	* readback here.
762	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
763	* not expecting this to actually change the hook. This is a potential problem
764	* when a schedule happens then, but we ignore this.
765	*/	841	*/
766	static int	842	static int
767	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	843	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
768	{	844	{
769	const char *s = MgPV_nolen_const (mg);	845	const char *s = MgPV_nolen_const (mg);
…		…
822	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	898	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
823		899
824	if (svp)	900	if (svp)
825	{	901	{
826	SV *old = *svp;	902	SV *old = *svp;
827	*svp = newSVsv (sv);	903	*svp = SvOK (sv) ? newSVsv (sv) : 0;
828	SvREFCNT_dec (old);	904	SvREFCNT_dec (old);
829	return 0;	905	return 0;
830	}	906	}
831	}	907	}
832		908
…		…
864		940
865	PL_runops = RUNOPS_DEFAULT;	941	PL_runops = RUNOPS_DEFAULT;
866	PL_curcop = &PL_compiling;	942	PL_curcop = &PL_compiling;
867	PL_in_eval = EVAL_NULL;	943	PL_in_eval = EVAL_NULL;
868	PL_comppad = 0;	944	PL_comppad = 0;
		945	PL_comppad_name = 0;
		946	PL_comppad_name_fill = 0;
		947	PL_comppad_name_floor = 0;
869	PL_curpm = 0;	948	PL_curpm = 0;
870	PL_curpad = 0;	949	PL_curpad = 0;
871	PL_localizing = 0;	950	PL_localizing = 0;
872	PL_dirty = 0;	951	PL_dirty = 0;
873	PL_restartop = 0;	952	PL_restartop = 0;
874	#if PERL_VERSION_ATLEAST (5,10,0)	953	#if PERL_VERSION_ATLEAST (5,10,0)
875	PL_parser = 0;	954	PL_parser = 0;
876	#endif	955	#endif
		956	PL_hints = 0;
877		957
878	/* recreate the die/warn hooks */	958	/* recreate the die/warn hooks */
879	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	959	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
880	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	960	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
881		961
882	GvSV (PL_defgv) = newSV (0);	962	GvSV (PL_defgv) = newSV (0);
883	GvAV (PL_defgv) = coro->args; coro->args = 0;	963	GvAV (PL_defgv) = coro->args; coro->args = 0;
884	GvSV (PL_errgv) = newSV (0);	964	GvSV (PL_errgv) = newSV (0);
885	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	965	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		966	GvHV (PL_hintgv) = 0;
886	PL_rs = newSVsv (GvSV (irsgv));	967	PL_rs = newSVsv (GvSV (irsgv));
887	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	968	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
888		969
889	{	970	{
890	dSP;	971	dSP;
…		…
916		997
917	PL_op = (OP *)&coro_setup_op;	998	PL_op = (OP *)&coro_setup_op;
918		999
919	/* copy throw, in case it was set before coro_setup */	1000	/* copy throw, in case it was set before coro_setup */
920	CORO_THROW = coro->except;	1001	CORO_THROW = coro->except;
921	}
922		1002
		1003	if (expect_false (enable_times))
		1004	{
		1005	coro_times_update ();
		1006	coro_times_sub (coro);
		1007	}
		1008	}
		1009
923	static void	1010	static void
924	coro_destruct (pTHX_ struct coro *coro)	1011	coro_unwind_stacks (pTHX)
925	{	1012	{
926	if (!IN_DESTRUCT)	1013	if (!IN_DESTRUCT)
927	{	1014	{
928	/* restore all saved variables and stuff */	1015	/* restore all saved variables and stuff */
929	LEAVE_SCOPE (0);	1016	LEAVE_SCOPE (0);
…		…
937	POPSTACK_TO (PL_mainstack);	1024	POPSTACK_TO (PL_mainstack);
938		1025
939	/* unwind main stack */	1026	/* unwind main stack */
940	dounwind (-1);	1027	dounwind (-1);
941	}	1028	}
		1029	}
942		1030
943	SvREFCNT_dec (GvSV (PL_defgv));	1031	static void
944	SvREFCNT_dec (GvAV (PL_defgv));	1032	coro_destruct_perl (pTHX_ struct coro *coro)
945	SvREFCNT_dec (GvSV (PL_errgv));	1033	{
946	SvREFCNT_dec (PL_defoutgv);	1034	SV *svf [9];
947	SvREFCNT_dec (PL_rs);
948	SvREFCNT_dec (GvSV (irsgv));
949		1035
950	SvREFCNT_dec (PL_diehook);
951	SvREFCNT_dec (PL_warnhook);
952		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
953	SvREFCNT_dec (coro->saved_deffh);	1068	SvREFCNT_dec (coro->saved_deffh);
954	SvREFCNT_dec (coro->rouse_cb);	1069	SvREFCNT_dec (coro->rouse_cb);
955	SvREFCNT_dec (coro->invoke_cb);	1070	SvREFCNT_dec (coro->invoke_cb);
956	SvREFCNT_dec (coro->invoke_av);	1071	SvREFCNT_dec (coro->invoke_av);
957		1072	}
958	coro_destruct_stacks (aTHX);
959	}	1073	}
960		1074
961	INLINE void	1075	INLINE void
962	free_coro_mortal (pTHX)	1076	free_coro_mortal (pTHX)
963	{	1077	{
…		…
971	static int	1085	static int
972	runops_trace (pTHX)	1086	runops_trace (pTHX)
973	{	1087	{
974	COP *oldcop = 0;	1088	COP *oldcop = 0;
975	int oldcxix = -2;	1089	int oldcxix = -2;
976	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
977	coro_cctx *cctx = coro->cctx;
978		1090
979	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	1091	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
980	{	1092	{
981	PERL_ASYNC_CHECK ();	1093	PERL_ASYNC_CHECK ();
982		1094
983	if (cctx->flags & CC_TRACE_ALL)	1095	if (cctx_current->flags & CC_TRACE_ALL)
984	{	1096	{
985	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	1097	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
986	{	1098	{
987	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1099	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
988	SV **bot, **top;	1100	SV **bot, **top;
989	AV *av = newAV (); /* return values */	1101	AV *av = newAV (); /* return values */
990	SV **cb;	1102	SV **cb;
…		…
1027		1139
1028	if (PL_curcop != &PL_compiling)	1140	if (PL_curcop != &PL_compiling)
1029	{	1141	{
1030	SV **cb;	1142	SV **cb;
1031		1143
1032	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1144	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1033	{	1145	{
1034	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1146	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1035		1147
1036	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1148	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1037	{	1149	{
…		…
1060	}	1172	}
1061		1173
1062	oldcxix = cxstack_ix;	1174	oldcxix = cxstack_ix;
1063	}	1175	}
1064		1176
1065	if (cctx->flags & CC_TRACE_LINE)	1177	if (cctx_current->flags & CC_TRACE_LINE)
1066	{	1178	{
1067	dSP;	1179	dSP;
1068		1180
1069	PL_runops = RUNOPS_DEFAULT;	1181	PL_runops = RUNOPS_DEFAULT;
1070	ENTER;	1182	ENTER;
…		…
1162	/* 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 */
1163	PL_restartop = PL_op;	1275	PL_restartop = PL_op;
1164	perl_run (PL_curinterp);	1276	perl_run (PL_curinterp);
1165	/*	1277	/*
1166	* 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
1167	* 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.
1168	*/	1281	*/
1169		1282
1170	/*	1283	/*
1171	* 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
1172	* 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)
1173	* reason for perl_run to return. We try to exit by jumping to the	1286	* reason for perl_run to return. We try to exit by jumping to the
1174	* bootstrap-time "top" top_env, as we cannot restore the "main"	1287	* bootstrap-time "top" top_env, as we cannot restore the "main"
1175	* coroutine as Coro has no such concept	1288	* coroutine as Coro has no such concept.
		1289	* This actually isn't valid with the pthread backend, but OSes requiring
		1290	* that backend are too broken to do it in a standards-compliant way.
1176	*/	1291	*/
1177	PL_top_env = main_top_env;	1292	PL_top_env = main_top_env;
1178	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1293	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1179	}	1294	}
1180	}	1295	}
…		…
1257	cctx_destroy (coro_cctx *cctx)	1372	cctx_destroy (coro_cctx *cctx)
1258	{	1373	{
1259	if (!cctx)	1374	if (!cctx)
1260	return;	1375	return;
1261		1376
1262	assert (cctx != cctx_current);//D temporary	1377	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1263		1378
1264	--cctx_count;	1379	--cctx_count;
1265	coro_destroy (&cctx->cctx);	1380	coro_destroy (&cctx->cctx);
1266		1381
1267	/* coro_transfer creates new, empty cctx's */	1382	/* coro_transfer creates new, empty cctx's */
…		…
1331	/* TODO: throwing up here is considered harmful */	1446	/* TODO: throwing up here is considered harmful */
1332		1447
1333	if (expect_true (prev != next))	1448	if (expect_true (prev != next))
1334	{	1449	{
1335	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1450	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1336	croak ("Coro::State::transfer called with non-running/new 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,");
1337		1452
1338	if (expect_false (next->flags & CF_RUNNING))
1339	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1340
1341	if (expect_false (next->flags & CF_DESTROYED))	1453	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1342	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,");
1343		1455
1344	#if !PERL_VERSION_ATLEAST (5,10,0)	1456	#if !PERL_VERSION_ATLEAST (5,10,0)
1345	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1457	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1346	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,");
1347	#endif	1459	#endif
…		…
1395	))	1507	))
1396	{	1508	{
1397	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1509	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1398	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));	1510	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1399		1511
1400	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1512	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1401	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1513	/* without this the next cctx_get might destroy the running cctx while still in use */
1402	if (expect_false (CCTX_EXPIRED (cctx_current)))	1514	if (expect_false (CCTX_EXPIRED (cctx_current)))
1403	if (!next->cctx)	1515	if (expect_true (!next->cctx))
1404	next->cctx = cctx_get (aTHX);	1516	next->cctx = cctx_get (aTHX);
1405		1517
1406	cctx_put (cctx_current);	1518	cctx_put (cctx_current);
1407	assert (!prev->cctx);//D temporary
1408	}	1519	}
1409	else	1520	else
1410	prev->cctx = cctx_current;	1521	prev->cctx = cctx_current;
1411		1522
1412	++next->usecount;	1523	++next->usecount;
…		…
1436	coro_state_destroy (pTHX_ struct coro *coro)	1547	coro_state_destroy (pTHX_ struct coro *coro)
1437	{	1548	{
1438	if (coro->flags & CF_DESTROYED)	1549	if (coro->flags & CF_DESTROYED)
1439	return 0;	1550	return 0;
1440		1551
1441	if (coro->on_destroy)	1552	if (coro->on_destroy && !PL_dirty)
1442	coro->on_destroy (aTHX_ coro);	1553	coro->on_destroy (aTHX_ coro);
1443		1554
1444	coro->flags |= CF_DESTROYED;	1555	coro->flags |= CF_DESTROYED;
1445		1556
1446	if (coro->flags & CF_READY)	1557	if (coro->flags & CF_READY)
…		…
1450	--coro_nready;	1561	--coro_nready;
1451	}	1562	}
1452	else	1563	else
1453	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1564	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1454		1565
1455	if (coro->mainstack && coro->mainstack != main_mainstack)	1566	if (coro->mainstack
1456	{	1567	&& coro->mainstack != main_mainstack
1457	struct coro temp;	1568	&& coro->slot
1458		1569	&& !PL_dirty)
1459	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1460
1461	save_perl (aTHX_ &temp);
1462	load_perl (aTHX_ coro);
1463
1464	coro_destruct (aTHX_ coro);	1570	coro_destruct_perl (aTHX_ coro);
1465
1466	load_perl (aTHX_ &temp);
1467
1468	coro->slot = 0;
1469	}
1470		1571
1471	cctx_destroy (coro->cctx);	1572	cctx_destroy (coro->cctx);
1472	SvREFCNT_dec (coro->startcv);	1573	SvREFCNT_dec (coro->startcv);
1473	SvREFCNT_dec (coro->args);	1574	SvREFCNT_dec (coro->args);
1474	SvREFCNT_dec (CORO_THROW);	1575	SvREFCNT_dec (CORO_THROW);
…		…
1533		1634
1534	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1635	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1535	TRANSFER (ta, 1);	1636	TRANSFER (ta, 1);
1536	}	1637	}
1537		1638
1538	/*****************************************************************************/
1539	/* gensub: simple closure generation utility */
1540
1541	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1542
1543	/* create a closure from XS, returns a code reference */
1544	/* the arg can be accessed via GENSUB_ARG from the callback */
1545	/* the callback must use dXSARGS/XSRETURN */
1546	static SV *
1547	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1548	{
1549	CV *cv = (CV *)newSV (0);
1550
1551	sv_upgrade ((SV *)cv, SVt_PVCV);
1552
1553	CvANON_on (cv);
1554	CvISXSUB_on (cv);
1555	CvXSUB (cv) = xsub;
1556	GENSUB_ARG = arg;
1557
1558	return newRV_noinc ((SV *)cv);
1559	}
1560
1561	/** Coro ********************************************************************/	1639	/** Coro ********************************************************************/
1562		1640
1563	INLINE void	1641	INLINE void
1564	coro_enq (pTHX_ struct coro *coro)	1642	coro_enq (pTHX_ struct coro *coro)
1565	{	1643	{
1566	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1644	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1567	}
1568		1645
1569	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 *
1570	coro_deq (pTHX)	1654	coro_deq (pTHX)
1571	{	1655	{
1572	int prio;	1656	int prio;
1573		1657
1574	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1658	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1575	if (AvFILLp (coro_ready [prio]) >= 0)	1659	{
1576	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	}
1577		1669
1578	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;
1579	}	1688	}
1580		1689
1581	static int	1690	static int
1582	api_ready (pTHX_ SV *coro_sv)	1691	api_ready (pTHX_ SV *coro_sv)
1583	{	1692	{
1584	struct coro *coro;
1585	SV *sv_hook;
1586	void (*xs_hook)(void);
1587
1588	if (SvROK (coro_sv))
1589	coro_sv = SvRV (coro_sv);
1590
1591	coro = SvSTATE (coro_sv);	1693	struct coro *coro = SvSTATE (coro_sv);
1592		1694
1593	if (coro->flags & CF_READY)	1695	if (coro->flags & CF_READY)
1594	return 0;	1696	return 0;
1595		1697
1596	coro->flags |= CF_READY;	1698	coro->flags |= CF_READY;
1597		1699
1598	sv_hook = coro_nready ? 0 : coro_readyhook;
1599	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1600
1601	coro_enq (aTHX_ coro);	1700	coro_enq (aTHX_ coro);
1602	++coro_nready;
1603		1701
1604	if (sv_hook)	1702	if (!coro_nready++)
1605	{	1703	if (coroapi.readyhook)
1606	dSP;	1704	coroapi.readyhook ();
1607
1608	ENTER;
1609	SAVETMPS;
1610
1611	PUSHMARK (SP);
1612	PUTBACK;
1613	call_sv (sv_hook, G_VOID | G_DISCARD);
1614
1615	FREETMPS;
1616	LEAVE;
1617	}
1618
1619	if (xs_hook)
1620	xs_hook ();
1621		1705
1622	return 1;	1706	return 1;
1623	}	1707	}
1624		1708
1625	static int	1709	static int
…		…
1648	static void	1732	static void
1649	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1733	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1650	{	1734	{
1651	for (;;)	1735	for (;;)
1652	{	1736	{
1653	SV *next_sv = coro_deq (aTHX);	1737	struct coro *next = coro_deq (aTHX);
1654		1738
1655	if (expect_true (next_sv))	1739	if (expect_true (next))
1656	{	1740	{
1657	struct coro *next = SvSTATE_hv (next_sv);
1658
1659	/* cannot transfer to destroyed coros, skip and look for next */	1741	/* cannot transfer to destroyed coros, skip and look for next */
1660	if (expect_false (next->flags & CF_DESTROYED))	1742	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1661	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 */
1662	else	1744	else
1663	{	1745	{
1664	next->flags &= ~CF_READY;	1746	next->flags &= ~CF_READY;
1665	--coro_nready;	1747	--coro_nready;
1666		1748
…		…
1669	}	1751	}
1670	}	1752	}
1671	else	1753	else
1672	{	1754	{
1673	/* nothing to schedule: call the idle handler */	1755	/* nothing to schedule: call the idle handler */
		1756	if (SvROK (sv_idle)
		1757	&& SvOBJECT (SvRV (sv_idle)))
		1758	{
		1759	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1760	api_ready (aTHX_ SvRV (sv_idle));
		1761	--coro_nready;
		1762	}
		1763	else
		1764	{
		1765	/* TODO: deprecated, remove, cannot work reliably *//*D*/
1674	dSP;	1766	dSP;
1675		1767
1676	ENTER;	1768	ENTER;
1677	SAVETMPS;	1769	SAVETMPS;
1678		1770
1679	PUSHMARK (SP);	1771	PUSHMARK (SP);
1680	PUTBACK;	1772	PUTBACK;
1681	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);	1773	call_sv (sv_idle, G_VOID | G_DISCARD);
1682		1774
1683	FREETMPS;	1775	FREETMPS;
1684	LEAVE;	1776	LEAVE;
		1777	}
1685	}	1778	}
1686	}	1779	}
1687	}	1780	}
1688		1781
1689	INLINE void	1782	INLINE void
…		…
1760	static void	1853	static void
1761	api_trace (pTHX_ SV *coro_sv, int flags)	1854	api_trace (pTHX_ SV *coro_sv, int flags)
1762	{	1855	{
1763	struct coro *coro = SvSTATE (coro_sv);	1856	struct coro *coro = SvSTATE (coro_sv);
1764		1857
		1858	if (coro->flags & CF_RUNNING)
		1859	croak ("cannot enable tracing on a running coroutine, caught");
		1860
1765	if (flags & CC_TRACE)	1861	if (flags & CC_TRACE)
1766	{	1862	{
1767	if (!coro->cctx)	1863	if (!coro->cctx)
1768	coro->cctx = cctx_new_run ();	1864	coro->cctx = cctx_new_run ();
1769	else if (!(coro->cctx->flags & CC_TRACE))	1865	else if (!(coro->cctx->flags & CC_TRACE))
1770	croak ("cannot enable tracing on coroutine with custom stack,");	1866	croak ("cannot enable tracing on coroutine with custom stack, caught");
1771		1867
1772	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1868	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1773	}	1869	}
1774	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1870	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1775	{	1871	{
…		…
1820	{	1916	{
1821	int i;	1917	int i;
1822	HV *hv = (HV *)SvRV (coro_current);	1918	HV *hv = (HV *)SvRV (coro_current);
1823	AV *av = newAV ();	1919	AV *av = newAV ();
1824		1920
		1921	/* items are actually not so common, so optimise for this case */
		1922	if (items)
		1923	{
1825	av_extend (av, items - 1);	1924	av_extend (av, items - 1);
		1925
1826	for (i = 0; i < items; ++i)	1926	for (i = 0; i < items; ++i)
1827	av_push (av, SvREFCNT_inc_NN (arg [i]));	1927	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1928	}
1828		1929
1829	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);
1830		1931
1831	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 */
1832	api_ready (aTHX_ sv_manager);	1933	api_ready (aTHX_ sv_manager);
1833		1934
1834	frame->prepare = prepare_schedule;	1935	frame->prepare = prepare_schedule;
1835	frame->check = slf_check_repeat;	1936	frame->check = slf_check_repeat;
		1937
		1938	/* as a minor optimisation, we could unwind all stacks here */
		1939	/* but that puts extra pressure on pp_slf, and is not worth much */
		1940	/*coro_unwind_stacks (aTHX);*/
1836	}	1941	}
1837		1942
1838	/*****************************************************************************/	1943	/*****************************************************************************/
1839	/* async pool handler */	1944	/* async pool handler */
1840		1945
…		…
1918		2023
1919	static void	2024	static void
1920	coro_rouse_callback (pTHX_ CV *cv)	2025	coro_rouse_callback (pTHX_ CV *cv)
1921	{	2026	{
1922	dXSARGS;	2027	dXSARGS;
1923	SV *data = (SV *)GENSUB_ARG;	2028	SV *data = (SV *)S_GENSUB_ARG;
1924		2029
1925	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2030	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1926	{	2031	{
1927	/* first call, set args */	2032	/* first call, set args */
		2033	SV *coro = SvRV (data);
1928	AV *av = newAV ();	2034	AV *av = newAV ();
1929	SV *coro = SvRV (data);
1930		2035
1931	SvRV_set (data, (SV *)av);	2036	SvRV_set (data, (SV *)av);
1932	api_ready (aTHX_ coro);
1933	SvREFCNT_dec (coro);
1934		2037
1935	/* better take a full copy of the arguments */	2038	/* better take a full copy of the arguments */
1936	while (items--)	2039	while (items--)
1937	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);
1938	}	2044	}
1939		2045
1940	XSRETURN_EMPTY;	2046	XSRETURN_EMPTY;
1941	}	2047	}
1942		2048
…		…
1959		2065
1960	EXTEND (SP, AvFILLp (av) + 1);	2066	EXTEND (SP, AvFILLp (av) + 1);
1961	for (i = 0; i <= AvFILLp (av); ++i)	2067	for (i = 0; i <= AvFILLp (av); ++i)
1962	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2068	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1963		2069
1964	/* 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 */
1965	AvFILLp (av) = -1;	2071	AvFILLp (av) = -1;
1966	av_undef (av);	2072	av_undef (av);
1967		2073
1968	PUTBACK;	2074	PUTBACK;
1969	}	2075	}
…		…
1993	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2099	|| SvTYPE (SvRV (cb)) != SVt_PVCV
1994	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2100	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1995	croak ("Coro::rouse_wait called with illegal callback argument,");	2101	croak ("Coro::rouse_wait called with illegal callback argument,");
1996		2102
1997	{	2103	{
1998	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2104	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1999	SV *data = (SV *)GENSUB_ARG;	2105	SV *data = (SV *)S_GENSUB_ARG;
2000		2106
2001	frame->data = (void *)data;	2107	frame->data = (void *)data;
2002	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2108	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2003	frame->check = slf_check_rouse_wait;	2109	frame->check = slf_check_rouse_wait;
2004	}	2110	}
…		…
2008	coro_new_rouse_cb (pTHX)	2114	coro_new_rouse_cb (pTHX)
2009	{	2115	{
2010	HV *hv = (HV *)SvRV (coro_current);	2116	HV *hv = (HV *)SvRV (coro_current);
2011	struct coro *coro = SvSTATE_hv (hv);	2117	struct coro *coro = SvSTATE_hv (hv);
2012	SV *data = newRV_inc ((SV *)hv);	2118	SV *data = newRV_inc ((SV *)hv);
2013	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2119	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2014		2120
2015	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);
2016	SvREFCNT_dec (data); /* magicext increases the refcount */	2122	SvREFCNT_dec (data); /* magicext increases the refcount */
2017		2123
2018	SvREFCNT_dec (coro->rouse_cb);	2124	SvREFCNT_dec (coro->rouse_cb);
…		…
2225	if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB]	2331	if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB]
2226	&& PL_op->op_ppaddr != pp_slf)	2332	&& PL_op->op_ppaddr != pp_slf)
2227	croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught");	2333	croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught");
2228		2334
2229	CvFLAGS (cv) |= CVf_SLF;	2335	CvFLAGS (cv) |= CVf_SLF;
		2336	CvNODEBUG_on (cv);
2230	CvXSUBANY (cv).any_ptr = (void *)init_cb;	2337	CvXSUBANY (cv).any_ptr = (void *)init_cb;
2231	slf_cv = cv;	2338	slf_cv = cv;
2232		2339
2233	/* we patch the op, and then re-run the whole call */	2340	/* we patch the op, and then re-run the whole call */
2234	/* we have to put the same argument on the stack for this to work */	2341	/* we have to put the same argument on the stack for this to work */
…		…
2259		2366
2260	PL_op->op_ppaddr = pp_slf;	2367	PL_op->op_ppaddr = pp_slf;
2261	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2368	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2262		2369
2263	PL_op = (OP *)&slf_restore;	2370	PL_op = (OP *)&slf_restore;
		2371	}
		2372
		2373	/*****************************************************************************/
		2374	/* dynamic wind */
		2375
		2376	static void
		2377	on_enterleave_call (pTHX_ SV *cb)
		2378	{
		2379	dSP;
		2380
		2381	PUSHSTACK;
		2382
		2383	PUSHMARK (SP);
		2384	PUTBACK;
		2385	call_sv (cb, G_VOID | G_DISCARD);
		2386	SPAGAIN;
		2387
		2388	POPSTACK;
		2389	}
		2390
		2391	static SV *
		2392	coro_avp_pop_and_free (pTHX_ AV **avp)
		2393	{
		2394	AV *av = *avp;
		2395	SV *res = av_pop (av);
		2396
		2397	if (AvFILLp (av) < 0)
		2398	{
		2399	*avp = 0;
		2400	SvREFCNT_dec (av);
		2401	}
		2402
		2403	return res;
		2404	}
		2405
		2406	static void
		2407	coro_pop_on_enter (pTHX_ void *coro)
		2408	{
		2409	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2410	SvREFCNT_dec (cb);
		2411	}
		2412
		2413	static void
		2414	coro_pop_on_leave (pTHX_ void *coro)
		2415	{
		2416	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2417	on_enterleave_call (aTHX_ sv_2mortal (cb));
2264	}	2418	}
2265		2419
2266	/*****************************************************************************/	2420	/*****************************************************************************/
2267	/* PerlIO::cede */	2421	/* PerlIO::cede */
2268		2422
…		…
2342	/* Coro::Semaphore & Coro::Signal */	2496	/* Coro::Semaphore & Coro::Signal */
2343		2497
2344	static SV *	2498	static SV *
2345	coro_waitarray_new (pTHX_ int count)	2499	coro_waitarray_new (pTHX_ int count)
2346	{	2500	{
2347	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2501	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2348	AV *av = newAV ();	2502	AV *av = newAV ();
2349	SV **ary;	2503	SV **ary;
2350		2504
2351	/* unfortunately, building manually saves memory */	2505	/* unfortunately, building manually saves memory */
2352	Newx (ary, 2, SV *);	2506	Newx (ary, 2, SV *);
2353	AvALLOC (av) = ary;	2507	AvALLOC (av) = ary;
		2508	#if PERL_VERSION_ATLEAST (5,10,0)
2354	/*AvARRAY (av) = ary;*/	2509	AvARRAY (av) = ary;
		2510	#else
2355	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2511	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2512	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2513	SvPVX ((SV *)av) = (char *)ary;
		2514	#endif
2356	AvMAX (av) = 1;	2515	AvMAX (av) = 1;
2357	AvFILLp (av) = 0;	2516	AvFILLp (av) = 0;
2358	ary [0] = newSViv (count);	2517	ary [0] = newSViv (count);
2359		2518
2360	return newRV_noinc ((SV *)av);	2519	return newRV_noinc ((SV *)av);
…		…
2489	{	2648	{
2490	if (items >= 2)	2649	if (items >= 2)
2491	{	2650	{
2492	/* callback form */	2651	/* callback form */
2493	AV *av = (AV *)SvRV (arg [0]);	2652	AV *av = (AV *)SvRV (arg [0]);
2494	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2653	SV *cb_cv = s_get_cv_croak (arg [1]);
2495		2654
2496	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2655	av_push (av, SvREFCNT_inc_NN (cb_cv));
2497		2656
2498	if (SvIVX (AvARRAY (av)[0]) > 0)	2657	if (SvIVX (AvARRAY (av)[0]) > 0)
2499	coro_semaphore_adjust (aTHX_ av, 0);	2658	coro_semaphore_adjust (aTHX_ av, 0);
2500		2659
2501	frame->prepare = prepare_nop;	2660	frame->prepare = prepare_nop;
…		…
2525	AvARRAY (av)[0] = AvARRAY (av)[1];	2684	AvARRAY (av)[0] = AvARRAY (av)[1];
2526	AvARRAY (av)[1] = cb;	2685	AvARRAY (av)[1] = cb;
2527		2686
2528	cb = av_shift (av);	2687	cb = av_shift (av);
2529		2688
		2689	if (SvTYPE (cb) == SVt_PVCV)
		2690	{
		2691	dSP;
		2692	PUSHMARK (SP);
		2693	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2694	PUTBACK;
		2695	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2696	}
		2697	else
		2698	{
2530	api_ready (aTHX_ cb);	2699	api_ready (aTHX_ cb);
2531	sv_setiv (cb, 0); /* signal waiter */	2700	sv_setiv (cb, 0); /* signal waiter */
		2701	}
		2702
2532	SvREFCNT_dec (cb);	2703	SvREFCNT_dec (cb);
2533		2704
2534	--count;	2705	--count;
2535	}	2706	}
2536	}	2707	}
…		…
2545	static void	2716	static void
2546	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2717	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2547	{	2718	{
2548	AV *av = (AV *)SvRV (arg [0]);	2719	AV *av = (AV *)SvRV (arg [0]);
2549		2720
		2721	if (items >= 2)
		2722	{
		2723	SV *cb_cv = s_get_cv_croak (arg [1]);
		2724	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2725
2550	if (SvIVX (AvARRAY (av)[0]))	2726	if (SvIVX (AvARRAY (av)[0]))
		2727	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
		2728
		2729	frame->prepare = prepare_nop;
		2730	frame->check = slf_check_nop;
		2731	}
		2732	else if (SvIVX (AvARRAY (av)[0]))
2551	{	2733	{
2552	SvIVX (AvARRAY (av)[0]) = 0;	2734	SvIVX (AvARRAY (av)[0]) = 0;
2553	frame->prepare = prepare_nop;	2735	frame->prepare = prepare_nop;
2554	frame->check = slf_check_nop;	2736	frame->check = slf_check_nop;
2555	}	2737	}
2556	else	2738	else
2557	{	2739	{
2558	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2740	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2559		2741
2560	av_push (av, waiter);	2742	av_push (av, waiter);
2561		2743
2562	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2744	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2563	frame->prepare = prepare_schedule;	2745	frame->prepare = prepare_schedule;
…		…
2581		2763
2582	static void	2764	static void
2583	coro_aio_callback (pTHX_ CV *cv)	2765	coro_aio_callback (pTHX_ CV *cv)
2584	{	2766	{
2585	dXSARGS;	2767	dXSARGS;
2586	AV *state = (AV *)GENSUB_ARG;	2768	AV *state = (AV *)S_GENSUB_ARG;
2587	SV *coro = av_pop (state);	2769	SV *coro = av_pop (state);
2588	SV *data_sv = newSV (sizeof (struct io_state));	2770	SV *data_sv = newSV (sizeof (struct io_state));
2589		2771
2590	av_extend (state, items - 1);	2772	av_extend (state, items - 1);
2591		2773
…		…
2705		2887
2706	for (i = 0; i < items; ++i)	2888	for (i = 0; i < items; ++i)
2707	PUSHs (arg [i]);	2889	PUSHs (arg [i]);
2708		2890
2709	/* now push the callback closure */	2891	/* now push the callback closure */
2710	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	2892	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2711		2893
2712	/* now call the AIO function - we assume our request is uncancelable */	2894	/* now call the AIO function - we assume our request is uncancelable */
2713	PUTBACK;	2895	PUTBACK;
2714	call_sv ((SV *)req, G_VOID | G_DISCARD);	2896	call_sv ((SV *)req, G_VOID | G_DISCARD);
2715	}	2897	}
…		…
2733	/*****************************************************************************/	2915	/*****************************************************************************/
2734		2916
2735	#if CORO_CLONE	2917	#if CORO_CLONE
2736	# include "clone.c"	2918	# include "clone.c"
2737	#endif	2919	#endif
		2920
		2921	/*****************************************************************************/
		2922
		2923	static SV *
		2924	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		2925	{
		2926	SV *coro_sv;
		2927	struct coro *coro;
		2928	MAGIC *mg;
		2929	HV *hv;
		2930	SV *cb;
		2931	int i;
		2932
		2933	if (argc > 0)
		2934	{
		2935	cb = s_get_cv_croak (argv [0]);
		2936
		2937	if (!is_coro)
		2938	{
		2939	if (CvISXSUB (cb))
		2940	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2941
		2942	if (!CvROOT (cb))
		2943	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2944	}
		2945	}
		2946
		2947	Newz (0, coro, 1, struct coro);
		2948	coro->args = newAV ();
		2949	coro->flags = CF_NEW;
		2950
		2951	if (coro_first) coro_first->prev = coro;
		2952	coro->next = coro_first;
		2953	coro_first = coro;
		2954
		2955	coro->hv = hv = newHV ();
		2956	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		2957	mg->mg_flags |= MGf_DUP;
		2958	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		2959
		2960	if (argc > 0)
		2961	{
		2962	av_extend (coro->args, argc + is_coro - 1);
		2963
		2964	if (is_coro)
		2965	{
		2966	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2967	cb = (SV *)cv_coro_run;
		2968	}
		2969
		2970	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2971
		2972	for (i = 1; i < argc; i++)
		2973	av_push (coro->args, newSVsv (argv [i]));
		2974	}
		2975
		2976	return coro_sv;
		2977	}
2738		2978
2739	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2979	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2740		2980
2741	PROTOTYPES: DISABLE	2981	PROTOTYPES: DISABLE
2742		2982
…		…
2802		3042
2803	if (!svp) croak ("Time::HiRes is required");	3043	if (!svp) croak ("Time::HiRes is required");
2804	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	3044	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2805		3045
2806	nvtime = INT2PTR (double (*)(), SvIV (*svp));	3046	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		3047
		3048	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		3049	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2807	}	3050	}
2808		3051
2809	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	3052	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2810	}	3053	}
2811		3054
2812	SV *	3055	SV *
2813	new (char *klass, ...)	3056	new (SV *klass, ...)
2814	ALIAS:	3057	ALIAS:
2815	Coro::new = 1	3058	Coro::new = 1
2816	CODE:	3059	CODE:
2817	{	3060	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2818	struct coro *coro;	3061	OUTPUT:
2819	MAGIC *mg;
2820	HV *hv;
2821	CV *cb;
2822	int i;
2823
2824	if (items > 1)
2825	{
2826	cb = coro_sv_2cv (aTHX_ ST (1));
2827
2828	if (!ix)
2829	{
2830	if (CvISXSUB (cb))
2831	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2832
2833	if (!CvROOT (cb))
2834	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2835	}
2836	}
2837
2838	Newz (0, coro, 1, struct coro);
2839	coro->args = newAV ();
2840	coro->flags = CF_NEW;
2841
2842	if (coro_first) coro_first->prev = coro;
2843	coro->next = coro_first;
2844	coro_first = coro;
2845
2846	coro->hv = hv = newHV ();
2847	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2848	mg->mg_flags |= MGf_DUP;
2849	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2850
2851	if (items > 1)
2852	{
2853	av_extend (coro->args, items - 1 + ix - 1);
2854
2855	if (ix)
2856	{
2857	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2858	cb = cv_coro_run;
2859	}
2860
2861	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2862
2863	for (i = 2; i < items; i++)
2864	av_push (coro->args, newSVsv (ST (i)));
2865	}
2866	}
2867	OUTPUT:
2868	RETVAL	3062	RETVAL
2869		3063
2870	void	3064	void
2871	transfer (...)	3065	transfer (...)
2872	PROTOTYPE: $$	3066	PROTOTYPE: $$
…		…
2889	SV *	3083	SV *
2890	clone (Coro::State coro)	3084	clone (Coro::State coro)
2891	CODE:	3085	CODE:
2892	{	3086	{
2893	#if CORO_CLONE	3087	#if CORO_CLONE
2894	struct coro *ncoro = coro_clone (coro);	3088	struct coro *ncoro = coro_clone (aTHX_ coro);
2895	MAGIC *mg;	3089	MAGIC *mg;
2896	/* TODO: too much duplication */	3090	/* TODO: too much duplication */
2897	ncoro->hv = newHV ();	3091	ncoro->hv = newHV ();
2898	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);	3092	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2899	mg->mg_flags |= MGf_DUP;	3093	mg->mg_flags |= MGf_DUP;
…		…
2961	eval = 1	3155	eval = 1
2962	CODE:	3156	CODE:
2963	{	3157	{
2964	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3158	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2965	{	3159	{
2966	struct coro temp;	3160	struct coro *current = SvSTATE_current;
2967		3161
2968	if (!(coro->flags & CF_RUNNING))	3162	if (current != coro)
2969	{	3163	{
2970	PUTBACK;	3164	PUTBACK;
2971	save_perl (aTHX_ &temp);	3165	save_perl (aTHX_ current);
2972	load_perl (aTHX_ coro);	3166	load_perl (aTHX_ coro);
		3167	SPAGAIN;
2973	}	3168	}
2974		3169
2975	{
2976	dSP;
2977	ENTER;
2978	SAVETMPS;
2979	PUTBACK;
2980	PUSHSTACK;	3170	PUSHSTACK;
		3171
2981	PUSHMARK (SP);	3172	PUSHMARK (SP);
		3173	PUTBACK;
2982		3174
2983	if (ix)	3175	if (ix)
2984	eval_sv (coderef, 0);	3176	eval_sv (coderef, 0);
2985	else	3177	else
2986	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3178	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2987		3179
2988	POPSTACK;	3180	POPSTACK;
2989	SPAGAIN;	3181	SPAGAIN;
2990	FREETMPS;
2991	LEAVE;
2992	PUTBACK;
2993	}
2994		3182
2995	if (!(coro->flags & CF_RUNNING))	3183	if (current != coro)
2996	{	3184	{
		3185	PUTBACK;
2997	save_perl (aTHX_ coro);	3186	save_perl (aTHX_ coro);
2998	load_perl (aTHX_ &temp);	3187	load_perl (aTHX_ current);
2999	SPAGAIN;	3188	SPAGAIN;
3000	}	3189	}
3001	}	3190	}
3002	}	3191	}
3003		3192
…		…
3007	ALIAS:	3196	ALIAS:
3008	is_ready = CF_READY	3197	is_ready = CF_READY
3009	is_running = CF_RUNNING	3198	is_running = CF_RUNNING
3010	is_new = CF_NEW	3199	is_new = CF_NEW
3011	is_destroyed = CF_DESTROYED	3200	is_destroyed = CF_DESTROYED
		3201	is_suspended = CF_SUSPENDED
3012	CODE:	3202	CODE:
3013	RETVAL = boolSV (coro->flags & ix);	3203	RETVAL = boolSV (coro->flags & ix);
3014	OUTPUT:	3204	OUTPUT:
3015	RETVAL	3205	RETVAL
3016		3206
…		…
3020	CODE:	3210	CODE:
3021	{	3211	{
3022	struct coro *current = SvSTATE_current;	3212	struct coro *current = SvSTATE_current;
3023	SV **throwp = self == current ? &CORO_THROW : &self->except;	3213	SV **throwp = self == current ? &CORO_THROW : &self->except;
3024	SvREFCNT_dec (*throwp);	3214	SvREFCNT_dec (*throwp);
		3215	SvGETMAGIC (throw);
3025	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3216	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
3026	}	3217	}
3027		3218
3028	void	3219	void
3029	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3220	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
…		…
3032		3223
3033	SV *	3224	SV *
3034	has_cctx (Coro::State coro)	3225	has_cctx (Coro::State coro)
3035	PROTOTYPE: $	3226	PROTOTYPE: $
3036	CODE:	3227	CODE:
3037	RETVAL = boolSV (!!coro->cctx);	3228	/* maybe manage the running flag differently */
		3229	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
3038	OUTPUT:	3230	OUTPUT:
3039	RETVAL	3231	RETVAL
3040		3232
3041	int	3233	int
3042	is_traced (Coro::State coro)	3234	is_traced (Coro::State coro)
…		…
3062		3254
3063	void	3255	void
3064	force_cctx ()	3256	force_cctx ()
3065	PROTOTYPE:	3257	PROTOTYPE:
3066	CODE:	3258	CODE:
3067	SvSTATE_current->cctx->idle_sp = 0;	3259	cctx_current->idle_sp = 0;
3068		3260
3069	void	3261	void
3070	swap_defsv (Coro::State self)	3262	swap_defsv (Coro::State self)
3071	PROTOTYPE: $	3263	PROTOTYPE: $
3072	ALIAS:	3264	ALIAS:
…		…
3080	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3272	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3081		3273
3082	SV *tmp = *src; *src = *dst; *dst = tmp;	3274	SV *tmp = *src; *src = *dst; *dst = tmp;
3083	}	3275	}
3084		3276
		3277	void
		3278	cancel (Coro::State self)
		3279	CODE:
		3280	coro_state_destroy (aTHX_ self);
		3281	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3282
		3283
		3284	SV *
		3285	enable_times (int enabled = enable_times)
		3286	CODE:
		3287	{
		3288	RETVAL = boolSV (enable_times);
		3289
		3290	if (enabled != enable_times)
		3291	{
		3292	enable_times = enabled;
		3293
		3294	coro_times_update ();
		3295	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3296	}
		3297	}
		3298	OUTPUT:
		3299	RETVAL
		3300
		3301	void
		3302	times (Coro::State self)
		3303	PPCODE:
		3304	{
		3305	struct coro *current = SvSTATE (coro_current);
		3306
		3307	if (expect_false (current == self))
		3308	{
		3309	coro_times_update ();
		3310	coro_times_add (SvSTATE (coro_current));
		3311	}
		3312
		3313	EXTEND (SP, 2);
		3314	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3315	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3316
		3317	if (expect_false (current == self))
		3318	coro_times_sub (SvSTATE (coro_current));
		3319	}
3085		3320
3086	MODULE = Coro::State PACKAGE = Coro	3321	MODULE = Coro::State PACKAGE = Coro
3087		3322
3088	BOOT:	3323	BOOT:
3089	{	3324	{
3090	int i;
3091
3092	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3325	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3093	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3326	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3094	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3327	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3095	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3328	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3096	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3329	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3097	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3330	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3098	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3331	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3099	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3332	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3333	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3100		3334
3101	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3335	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3102	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3336	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3103	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3337	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3104	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3338	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3105		3339
3106	coro_stash = gv_stashpv ("Coro", TRUE);	3340	coro_stash = gv_stashpv ("Coro", TRUE);
3107		3341
3108	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3342	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3109	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3343	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3110	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3344	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3111	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3345	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3112	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3346	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3113	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3347	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3114
3115	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3116	coro_ready[i] = newAV ();
3117		3348
3118	{	3349	{
3119	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3350	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3120		3351
3121	coroapi.schedule = api_schedule;	3352	coroapi.schedule = api_schedule;
…		…
3131	sv_setiv (sv, (IV)&coroapi);	3362	sv_setiv (sv, (IV)&coroapi);
3132	SvREADONLY_on (sv);	3363	SvREADONLY_on (sv);
3133	}	3364	}
3134	}	3365	}
3135		3366
		3367	SV *
		3368	async (...)
		3369	PROTOTYPE: &@
		3370	CODE:
		3371	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3372	api_ready (aTHX_ RETVAL);
		3373	OUTPUT:
		3374	RETVAL
		3375
3136	void	3376	void
3137	terminate (...)	3377	terminate (...)
3138	CODE:	3378	CODE:
3139	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3379	CORO_EXECUTE_SLF_XS (slf_init_terminate);
3140		3380
…		…
3160		3400
3161	void	3401	void
3162	cede_notself (...)	3402	cede_notself (...)
3163	CODE:	3403	CODE:
3164	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3404	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3165
3166	void
3167	_cancel (Coro::State self)
3168	CODE:
3169	coro_state_destroy (aTHX_ self);
3170	coro_call_on_destroy (aTHX_ self);
3171		3405
3172	void	3406	void
3173	_set_current (SV *current)	3407	_set_current (SV *current)
3174	PROTOTYPE: $	3408	PROTOTYPE: $
3175	CODE:	3409	CODE:
…		…
3179	void	3413	void
3180	_set_readyhook (SV *hook)	3414	_set_readyhook (SV *hook)
3181	PROTOTYPE: $	3415	PROTOTYPE: $
3182	CODE:	3416	CODE:
3183	SvREFCNT_dec (coro_readyhook);	3417	SvREFCNT_dec (coro_readyhook);
		3418	SvGETMAGIC (hook);
		3419	if (SvOK (hook))
		3420	{
3184	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3421	coro_readyhook = newSVsv (hook);
		3422	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3423	}
		3424	else
		3425	{
		3426	coro_readyhook = 0;
		3427	CORO_READYHOOK = 0;
		3428	}
3185		3429
3186	int	3430	int
3187	prio (Coro::State coro, int newprio = 0)	3431	prio (Coro::State coro, int newprio = 0)
3188	PROTOTYPE: $;$	3432	PROTOTYPE: $;$
3189	ALIAS:	3433	ALIAS:
…		…
3195	if (items > 1)	3439	if (items > 1)
3196	{	3440	{
3197	if (ix)	3441	if (ix)
3198	newprio = coro->prio - newprio;	3442	newprio = coro->prio - newprio;
3199		3443
3200	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3444	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3201	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3445	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3202		3446
3203	coro->prio = newprio;	3447	coro->prio = newprio;
3204	}	3448	}
3205	}	3449	}
3206	OUTPUT:	3450	OUTPUT:
…		…
3221	RETVAL = coro_nready;	3465	RETVAL = coro_nready;
3222	OUTPUT:	3466	OUTPUT:
3223	RETVAL	3467	RETVAL
3224		3468
3225	void	3469	void
		3470	suspend (Coro::State self)
		3471	PROTOTYPE: $
		3472	CODE:
		3473	self->flags |= CF_SUSPENDED;
		3474
		3475	void
		3476	resume (Coro::State self)
		3477	PROTOTYPE: $
		3478	CODE:
		3479	self->flags &= ~CF_SUSPENDED;
		3480
		3481	void
3226	_pool_handler (...)	3482	_pool_handler (...)
3227	CODE:	3483	CODE:
3228	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3484	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3229		3485
3230	void	3486	void
…		…
3241	for (i = 1; i < items; ++i)	3497	for (i = 1; i < items; ++i)
3242	av_push (av, SvREFCNT_inc_NN (ST (i)));	3498	av_push (av, SvREFCNT_inc_NN (ST (i)));
3243		3499
3244	if ((SV *)hv == &PL_sv_undef)	3500	if ((SV *)hv == &PL_sv_undef)
3245	{	3501	{
3246	PUSHMARK (SP);	3502	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3247	EXTEND (SP, 2);
3248	PUSHs (sv_Coro);
3249	PUSHs ((SV *)cv_pool_handler);
3250	PUTBACK;
3251	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3252	SPAGAIN;
3253
3254	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3503	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3504	SvREFCNT_dec (sv);
3255	}	3505	}
3256		3506
3257	{	3507	{
3258	struct coro *coro = SvSTATE_hv (hv);	3508	struct coro *coro = SvSTATE_hv (hv);
3259		3509
…		…
3283	rouse_wait (...)	3533	rouse_wait (...)
3284	PROTOTYPE: ;$	3534	PROTOTYPE: ;$
3285	PPCODE:	3535	PPCODE:
3286	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3536	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3287		3537
		3538	void
		3539	on_enter (SV *block)
		3540	ALIAS:
		3541	on_leave = 1
		3542	PROTOTYPE: &
		3543	CODE:
		3544	{
		3545	struct coro *coro = SvSTATE_current;
		3546	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3547
		3548	block = s_get_cv_croak (block);
		3549
		3550	if (!*avp)
		3551	*avp = newAV ();
		3552
		3553	av_push (*avp, SvREFCNT_inc (block));
		3554
		3555	if (!ix)
		3556	on_enterleave_call (aTHX_ block);
		3557
		3558	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3559	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3560	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3561	}
		3562
3288		3563
3289	MODULE = Coro::State PACKAGE = PerlIO::cede	3564	MODULE = Coro::State PACKAGE = PerlIO::cede
3290		3565
3291	BOOT:	3566	BOOT:
3292	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3567	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3295	MODULE = Coro::State PACKAGE = Coro::Semaphore	3570	MODULE = Coro::State PACKAGE = Coro::Semaphore
3296		3571
3297	SV *	3572	SV *
3298	new (SV *klass, SV *count = 0)	3573	new (SV *klass, SV *count = 0)
3299	CODE:	3574	CODE:
		3575	{
		3576	int semcnt = 1;
		3577
		3578	if (count)
		3579	{
		3580	SvGETMAGIC (count);
		3581
		3582	if (SvOK (count))
		3583	semcnt = SvIV (count);
		3584	}
		3585
3300	RETVAL = sv_bless (	3586	RETVAL = sv_bless (
3301	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3587	coro_waitarray_new (aTHX_ semcnt),
3302	GvSTASH (CvGV (cv))	3588	GvSTASH (CvGV (cv))
3303	);	3589	);
		3590	}
3304	OUTPUT:	3591	OUTPUT:
3305	RETVAL	3592	RETVAL
3306		3593
3307	# helper for Coro::Channel	3594	# helper for Coro::Channel and others
3308	SV *	3595	SV *
3309	_alloc (int count)	3596	_alloc (int count)
3310	CODE:	3597	CODE:
3311	RETVAL = coro_waitarray_new (aTHX_ count);	3598	RETVAL = coro_waitarray_new (aTHX_ count);
3312	OUTPUT:	3599	OUTPUT:
…		…
3370	for (i = 1; i <= wcount; ++i)	3657	for (i = 1; i <= wcount; ++i)
3371	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3658	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3372	}	3659	}
3373	}	3660	}
3374		3661
		3662	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3663
		3664	void
		3665	_may_delete (SV *sem, int count, int extra_refs)
		3666	PPCODE:
		3667	{
		3668	AV *av = (AV *)SvRV (sem);
		3669
		3670	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3671	&& AvFILLp (av) == 0 /* no waiters, just count */
		3672	&& SvIV (AvARRAY (av)[0]) == count)
		3673	XSRETURN_YES;
		3674
		3675	XSRETURN_NO;
		3676	}
		3677
3375	MODULE = Coro::State PACKAGE = Coro::Signal	3678	MODULE = Coro::State PACKAGE = Coro::Signal
3376		3679
3377	SV *	3680	SV *
3378	new (SV *klass)	3681	new (SV *klass)
3379	CODE:	3682	CODE:
…		…
3450		3753
3451	void	3754	void
3452	_register (char *target, char *proto, SV *req)	3755	_register (char *target, char *proto, SV *req)
3453	CODE:	3756	CODE:
3454	{	3757	{
3455	CV *req_cv = coro_sv_2cv (aTHX_ req);	3758	SV *req_cv = s_get_cv_croak (req);
3456	/* newXSproto doesn't return the CV on 5.8 */	3759	/* newXSproto doesn't return the CV on 5.8 */
3457	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3760	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3458	sv_setpv ((SV *)slf_cv, proto);	3761	sv_setpv ((SV *)slf_cv, proto);
3459	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3762	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3460	}	3763	}
3461		3764
		3765	MODULE = Coro::State PACKAGE = Coro::Select
		3766
		3767	void
		3768	patch_pp_sselect ()
		3769	CODE:
		3770	if (!coro_old_pp_sselect)
		3771	{
		3772	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3773	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3774	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3775	}
		3776
		3777	void
		3778	unpatch_pp_sselect ()
		3779	CODE:
		3780	if (coro_old_pp_sselect)
		3781	{
		3782	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3783	coro_old_pp_sselect = 0;
		3784	}
		3785
		3786

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