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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.326 by root, Mon Nov 24 04:56:38 2008 UTC vs.
Revision 1.367 by root, Mon Aug 3 09:19:57 2009 UTC

…		…
6	#include "EXTERN.h"	6	#include "EXTERN.h"
7	#include "perl.h"	7	#include "perl.h"
8	#include "XSUB.h"	8	#include "XSUB.h"
9	#include "perliol.h"	9	#include "perliol.h"
10		10
11	#include "patchlevel.h"	11	#include "schmorp.h"
12		12
13	#include <stdio.h>	13	#include <stdio.h>
14	#include <errno.h>	14	#include <errno.h>
15	#include <assert.h>	15	#include <assert.h>
16		16
…		…
51	#endif	51	#endif
52		52
53	/* the maximum number of idle cctx that will be pooled */	53	/* the maximum number of idle cctx that will be pooled */
54	static int cctx_max_idle = 4;	54	static int cctx_max_idle = 4;
55		55
56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr
65	# endif
66	# ifndef call_sv
67	# define call_sv perl_call_sv
68	# endif
69	# ifndef get_sv
70	# define get_sv perl_get_sv
71	# endif
72	# ifndef get_cv
73	# define get_cv perl_get_cv
74	# endif
75	# ifndef IS_PADGV
76	# define IS_PADGV(v) 0
77	# endif
78	# ifndef IS_PADCONST
79	# define IS_PADCONST(v) 0
80	# endif
81	#endif
82
83	/* 5.11 */
84	#ifndef CxHASARGS
85	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86	#endif
87
88	/* 5.10.0 */
89	#ifndef SvREFCNT_inc_NN
90	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91	#endif
92
93	/* 5.8.8 */
94	#ifndef GV_NOTQUAL
95	# define GV_NOTQUAL 0
96	#endif
97	#ifndef newSV
98	# define newSV(l) NEWSV(0,l)
99	#endif
100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv
102	#endif
103	#ifndef CvISXSUB
104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105	#endif
106	#ifndef Newx
107	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108	#endif
109
110	/* 5.8.7 */
111	#ifndef SvRV_set
112	# define SvRV_set(s,v) SvRV(s) = (v)
113	#endif
114
115	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	56	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116	# undef CORO_STACKGUARD	57	# undef CORO_STACKGUARD
117	#endif	58	#endif
118		59
119	#ifndef CORO_STACKGUARD	60	#ifndef CORO_STACKGUARD
…		…
133	#else	74	#else
134	# define dSTACKLEVEL volatile void *stacklevel	75	# define dSTACKLEVEL volatile void *stacklevel
135	# define STACKLEVEL ((void *)&stacklevel)	76	# define STACKLEVEL ((void *)&stacklevel)
136	#endif	77	#endif
137		78
138	#define IN_DESTRUCT (PL_main_cv == Nullcv)	79	#define IN_DESTRUCT PL_dirty
139		80
140	#if __GNUC__ >= 3	81	#if __GNUC__ >= 3
141	# define attribute(x) __attribute__(x)	82	# define attribute(x) __attribute__(x)
142	# define expect(expr,value) __builtin_expect ((expr),(value))	83	# define expect(expr,value) __builtin_expect ((expr), (value))
143	# define INLINE static inline	84	# define INLINE static inline
144	#else	85	#else
145	# define attribute(x)	86	# define attribute(x)
146	# define expect(expr,value) (expr)	87	# define expect(expr,value) (expr)
147	# define INLINE static	88	# define INLINE static
…		…
159	# if CORO_PTHREAD	100	# if CORO_PTHREAD
160	static void *coro_thx;	101	static void *coro_thx;
161	# endif	102	# endif
162	#endif	103	#endif
163		104
		105	#ifdef __linux
		106	# include <time.h> /* for timespec */
		107	# include <syscall.h> /* for SYS_* */
		108	# ifdef SYS_clock_gettime
		109	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		110	# define CORO_CLOCK_MONOTONIC 1
		111	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
		112	# endif
		113	#endif
		114
164	static double (*nvtime)(); /* so why doesn't it take void? */	115	static double (*nvtime)(); /* so why doesn't it take void? */
		116	static void (*u2time)(pTHX_ UV ret[2]);
165		117
166	/* we hijack an hopefully unused CV flag for our purposes */	118	/* we hijack an hopefully unused CV flag for our purposes */
167	#define CVf_SLF 0x4000	119	#define CVf_SLF 0x4000
168	static OP *pp_slf (pTHX);	120	static OP *pp_slf (pTHX);
169		121
…		…
195	static CV *cv_coro_state_new;	147	static CV *cv_coro_state_new;
196		148
197	/* Coro::AnyEvent */	149	/* Coro::AnyEvent */
198	static SV *sv_activity;	150	static SV *sv_activity;
199		151
		152	/* enable processtime/realtime profiling */
		153	static char enable_times;
		154	typedef U32 coro_ts[2];
		155	static coro_ts time_real, time_cpu;
		156	static char times_valid;
		157
200	static struct coro_cctx *cctx_first;	158	static struct coro_cctx *cctx_first;
201	static int cctx_count, cctx_idle;	159	static int cctx_count, cctx_idle;
202		160
203	enum {	161	enum {
204	CC_MAPPED = 0x01,	162	CC_MAPPED = 0x01,
…		…
238	enum {	196	enum {
239	CF_RUNNING = 0x0001, /* coroutine is running */	197	CF_RUNNING = 0x0001, /* coroutine is running */
240	CF_READY = 0x0002, /* coroutine is ready */	198	CF_READY = 0x0002, /* coroutine is ready */
241	CF_NEW = 0x0004, /* has never been switched to */	199	CF_NEW = 0x0004, /* has never been switched to */
242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	200	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		201	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
243	};	202	};
244		203
245	/* the structure where most of the perl state is stored, overlaid on the cxstack */	204	/* the structure where most of the perl state is stored, overlaid on the cxstack */
246	typedef struct	205	typedef struct
247	{	206	{
248	SV *defsv;	207	SV *defsv;
249	AV *defav;	208	AV *defav;
250	SV *errsv;	209	SV *errsv;
251	SV *irsgv;	210	SV *irsgv;
		211	HV *hinthv;
252	#define VAR(name,type) type name;	212	#define VAR(name,type) type name;
253	# include "state.h"	213	# include "state.h"
254	#undef VAR	214	#undef VAR
255	} perl_slots;	215	} perl_slots;
256		216
…		…
258		218
259	/* this is a structure representing a perl-level coroutine */	219	/* this is a structure representing a perl-level coroutine */
260	struct coro {	220	struct coro {
261	/* the C coroutine allocated to this perl coroutine, if any */	221	/* the C coroutine allocated to this perl coroutine, if any */
262	coro_cctx *cctx;	222	coro_cctx *cctx;
		223
		224	/* ready queue */
		225	struct coro *next_ready;
263		226
264	/* state data */	227	/* state data */
265	struct CoroSLF slf_frame; /* saved slf frame */	228	struct CoroSLF slf_frame; /* saved slf frame */
266	AV *mainstack;	229	AV *mainstack;
267	perl_slots *slot; /* basically the saved sp */	230	perl_slots *slot; /* basically the saved sp */
…		…
284	/* async_pool */	247	/* async_pool */
285	SV *saved_deffh;	248	SV *saved_deffh;
286	SV *invoke_cb;	249	SV *invoke_cb;
287	AV *invoke_av;	250	AV *invoke_av;
288		251
		252	/* on_enter/on_leave */
		253	AV *on_enter;
		254	AV *on_leave;
		255
		256	/* times */
		257	coro_ts t_cpu, t_real;
		258
289	/* linked list */	259	/* linked list */
290	struct coro *next, *prev;	260	struct coro *next, *prev;
291	};	261	};
292		262
293	typedef struct coro *Coro__State;	263	typedef struct coro *Coro__State;
…		…
298	/* the mainr easonw e don't support windows process emulation */	268	/* the mainr easonw e don't support windows process emulation */
299	static struct CoroSLF slf_frame; /* the current slf frame */	269	static struct CoroSLF slf_frame; /* the current slf frame */
300		270
301	/** Coro ********************************************************************/	271	/** Coro ********************************************************************/
302		272
303	#define PRIO_MAX 3	273	#define CORO_PRIO_MAX 3
304	#define PRIO_HIGH 1	274	#define CORO_PRIO_HIGH 1
305	#define PRIO_NORMAL 0	275	#define CORO_PRIO_NORMAL 0
306	#define PRIO_LOW -1	276	#define CORO_PRIO_LOW -1
307	#define PRIO_IDLE -3	277	#define CORO_PRIO_IDLE -3
308	#define PRIO_MIN -4	278	#define CORO_PRIO_MIN -4
309		279
310	/* for Coro.pm */	280	/* for Coro.pm */
311	static SV *coro_current;	281	static SV *coro_current;
312	static SV *coro_readyhook;	282	static SV *coro_readyhook;
313	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	283	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
314	static CV *cv_coro_run, *cv_coro_terminate;	284	static CV *cv_coro_run, *cv_coro_terminate;
315	static struct coro *coro_first;	285	static struct coro *coro_first;
316	#define coro_nready coroapi.nready	286	#define coro_nready coroapi.nready
		287
		288	/** Coro::Select ************************************************************/
		289
		290	static OP *(*coro_old_pp_sselect) (pTHX);
		291	static SV *coro_select_select;
		292
		293	/* horrible hack, but if it works... */
		294	static OP *
		295	coro_pp_sselect (aTHX)
		296	{
		297	dSP;
		298	PUSHMARK (SP - 4); /* fake argument list */
		299	XPUSHs (coro_select_select);
		300	PUTBACK;
		301
		302	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
		303	PL_op->op_flags |= OPf_STACKED;
		304	PL_op->op_private = 0;
		305	return PL_ppaddr [OP_ENTERSUB](aTHX);
		306	}
317		307
318	/** lowlevel stuff **********************************************************/	308	/** lowlevel stuff **********************************************************/
319		309
320	static SV *	310	static SV *
321	coro_get_sv (pTHX_ const char *name, int create)	311	coro_get_sv (pTHX_ const char *name, int create)
…		…
345	get_hv (name, create);	335	get_hv (name, create);
346	#endif	336	#endif
347	return get_hv (name, create);	337	return get_hv (name, create);
348	}	338	}
349		339
350	/* may croak */	340	INLINE void
351	INLINE CV *	341	coro_times_update ()
352	coro_sv_2cv (pTHX_ SV *sv)
353	{	342	{
		343	#ifdef coro_clock_gettime
		344	struct timespec ts;
		345
		346	ts.tv_sec = ts.tv_nsec = 0;
		347	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		348	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
		349
		350	ts.tv_sec = ts.tv_nsec = 0;
		351	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		352	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		353	#else
		354	dTHX;
		355	UV tv[2];
		356
		357	u2time (aTHX_ tv);
		358	time_real [0] = tv [0];
		359	time_real [1] = tv [1] * 1000;
		360	#endif
		361	}
		362
		363	INLINE void
		364	coro_times_add (struct coro *c)
		365	{
		366	c->t_real [1] += time_real [1];
		367	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		368	c->t_real [0] += time_real [0];
		369
		370	c->t_cpu [1] += time_cpu [1];
		371	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		372	c->t_cpu [0] += time_cpu [0];
		373	}
		374
		375	INLINE void
		376	coro_times_sub (struct coro *c)
		377	{
		378	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		379	c->t_real [1] -= time_real [1];
		380	c->t_real [0] -= time_real [0];
		381
		382	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		383	c->t_cpu [1] -= time_cpu [1];
		384	c->t_cpu [0] -= time_cpu [0];
		385	}
		386
		387	/*****************************************************************************/
		388	/* magic glue */
		389
		390	#define CORO_MAGIC_type_cv 26
		391	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		392
		393	#define CORO_MAGIC_NN(sv, type) \
		394	(expect_true (SvMAGIC (sv)->mg_type == type) \
		395	? SvMAGIC (sv) \
		396	: mg_find (sv, type))
		397
		398	#define CORO_MAGIC(sv, type) \
		399	(expect_true (SvMAGIC (sv)) \
		400	? CORO_MAGIC_NN (sv, type) \
		401	: 0)
		402
		403	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		404	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		405
		406	INLINE struct coro *
		407	SvSTATE_ (pTHX_ SV *coro)
		408	{
354	HV *st;	409	HV *stash;
355	GV *gvp;	410	MAGIC *mg;
356	return sv_2cv (sv, &st, &gvp, 0);	411
		412	if (SvROK (coro))
		413	coro = SvRV (coro);
		414
		415	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		416	croak ("Coro::State object required");
		417
		418	stash = SvSTASH (coro);
		419	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		420	{
		421	/* very slow, but rare, check */
		422	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		423	croak ("Coro::State object required");
		424	}
		425
		426	mg = CORO_MAGIC_state (coro);
		427	return (struct coro *)mg->mg_ptr;
357	}	428	}
		429
		430	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		431
		432	/* faster than SvSTATE, but expects a coroutine hv */
		433	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		434	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		435
		436	/*****************************************************************************/
		437	/* padlist management and caching */
358		438
359	static AV *	439	static AV *
360	coro_derive_padlist (pTHX_ CV *cv)	440	coro_derive_padlist (pTHX_ CV *cv)
361	{	441	{
362	AV *padlist = CvPADLIST (cv);	442	AV *padlist = CvPADLIST (cv);
…		…
370	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	450	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
371	#endif	451	#endif
372	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	452	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
373	--AvFILLp (padlist);	453	--AvFILLp (padlist);
374		454
375	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	455	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
376	av_store (newpadlist, 1, (SV *)newpad);	456	av_store (newpadlist, 1, (SV *)newpad);
377		457
378	return newpadlist;	458	return newpadlist;
379	}	459	}
380		460
381	static void	461	static void
382	free_padlist (pTHX_ AV *padlist)	462	free_padlist (pTHX_ AV *padlist)
383	{	463	{
384	/* may be during global destruction */	464	/* may be during global destruction */
385	if (SvREFCNT (padlist))	465	if (!IN_DESTRUCT)
386	{	466	{
387	I32 i = AvFILLp (padlist);	467	I32 i = AvFILLp (padlist);
388	while (i >= 0)	468
		469	while (i > 0) /* special-case index 0 */
389	{	470	{
390	SV **svp = av_fetch (padlist, i--, FALSE);	471	/* we try to be extra-careful here */
391	if (svp)	472	AV *av = (AV *)AvARRAY (padlist)[i--];
392	{	473	I32 j = AvFILLp (av);
393	SV *sv;	474
394	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	475	while (j >= 0)
		476	SvREFCNT_dec (AvARRAY (av)[j--]);
		477
		478	AvFILLp (av) = -1;
395	SvREFCNT_dec (sv);	479	SvREFCNT_dec (av);
396
397	SvREFCNT_dec (*svp);
398	}
399	}	480	}
400		481
		482	SvREFCNT_dec (AvARRAY (padlist)[0]);
		483
		484	AvFILLp (padlist) = -1;
401	SvREFCNT_dec ((SV*)padlist);	485	SvREFCNT_dec ((SV*)padlist);
402	}	486	}
403	}	487	}
404		488
405	static int	489	static int
406	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	490	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
407	{	491	{
408	AV *padlist;	492	AV *padlist;
409	AV *av = (AV *)mg->mg_obj;	493	AV *av = (AV *)mg->mg_obj;
		494
		495	/* perl manages to free our internal AV and _then_ call us */
		496	if (IN_DESTRUCT)
		497	return 0;
410		498
411	/* casting is fun. */	499	/* casting is fun. */
412	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	500	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
413	free_padlist (aTHX_ padlist);	501	free_padlist (aTHX_ padlist);
414		502
415	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	503	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
416		504
417	return 0;	505	return 0;
418	}	506	}
419
420	#define CORO_MAGIC_type_cv 26
421	#define CORO_MAGIC_type_state PERL_MAGIC_ext
422		507
423	static MGVTBL coro_cv_vtbl = {	508	static MGVTBL coro_cv_vtbl = {
424	0, 0, 0, 0,	509	0, 0, 0, 0,
425	coro_cv_free	510	coro_cv_free
426	};	511	};
427
428	#define CORO_MAGIC_NN(sv, type) \
429	(expect_true (SvMAGIC (sv)->mg_type == type) \
430	? SvMAGIC (sv) \
431	: mg_find (sv, type))
432
433	#define CORO_MAGIC(sv, type) \
434	(expect_true (SvMAGIC (sv)) \
435	? CORO_MAGIC_NN (sv, type) \
436	: 0)
437
438	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
439	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
440
441	INLINE struct coro *
442	SvSTATE_ (pTHX_ SV *coro)
443	{
444	HV *stash;
445	MAGIC *mg;
446
447	if (SvROK (coro))
448	coro = SvRV (coro);
449
450	if (expect_false (SvTYPE (coro) != SVt_PVHV))
451	croak ("Coro::State object required");
452
453	stash = SvSTASH (coro);
454	if (expect_false (stash != coro_stash && stash != coro_state_stash))
455	{
456	/* very slow, but rare, check */
457	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
458	croak ("Coro::State object required");
459	}
460
461	mg = CORO_MAGIC_state (coro);
462	return (struct coro *)mg->mg_ptr;
463	}
464
465	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
466
467	/* faster than SvSTATE, but expects a coroutine hv */
468	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
469	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
470		512
471	/* the next two functions merely cache the padlists */	513	/* the next two functions merely cache the padlists */
472	static void	514	static void
473	get_padlist (pTHX_ CV *cv)	515	get_padlist (pTHX_ CV *cv)
474	{	516	{
…		…
502	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	544	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
503		545
504	av = (AV *)mg->mg_obj;	546	av = (AV *)mg->mg_obj;
505		547
506	if (expect_false (AvFILLp (av) >= AvMAX (av)))	548	if (expect_false (AvFILLp (av) >= AvMAX (av)))
507	av_extend (av, AvMAX (av) + 1);	549	av_extend (av, AvFILLp (av) + 1);
508		550
509	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	551	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
510	}	552	}
511		553
512	/** load & save, init *******************************************************/	554	/** load & save, init *******************************************************/
		555
		556	static void
		557	on_enterleave_call (pTHX_ SV *cb);
513		558
514	static void	559	static void
515	load_perl (pTHX_ Coro__State c)	560	load_perl (pTHX_ Coro__State c)
516	{	561	{
517	perl_slots *slot = c->slot;	562	perl_slots *slot = c->slot;
518	c->slot = 0;	563	c->slot = 0;
519		564
520	PL_mainstack = c->mainstack;	565	PL_mainstack = c->mainstack;
521		566
522	GvSV (PL_defgv) = slot->defsv;	567	GvSV (PL_defgv) = slot->defsv;
523	GvAV (PL_defgv) = slot->defav;	568	GvAV (PL_defgv) = slot->defav;
524	GvSV (PL_errgv) = slot->errsv;	569	GvSV (PL_errgv) = slot->errsv;
525	GvSV (irsgv) = slot->irsgv;	570	GvSV (irsgv) = slot->irsgv;
		571	GvHV (PL_hintgv) = slot->hinthv;
526		572
527	#define VAR(name,type) PL_ ## name = slot->name;	573	#define VAR(name,type) PL_ ## name = slot->name;
528	# include "state.h"	574	# include "state.h"
529	#undef VAR	575	#undef VAR
530		576
…		…
544	PUTBACK;	590	PUTBACK;
545	}	591	}
546		592
547	slf_frame = c->slf_frame;	593	slf_frame = c->slf_frame;
548	CORO_THROW = c->except;	594	CORO_THROW = c->except;
		595
		596	if (expect_false (enable_times))
		597	{
		598	if (expect_false (!times_valid))
		599	coro_times_update ();
		600
		601	coro_times_sub (c);
		602	}
		603
		604	if (expect_false (c->on_enter))
		605	{
		606	int i;
		607
		608	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		609	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		610	}
549	}	611	}
550		612
551	static void	613	static void
552	save_perl (pTHX_ Coro__State c)	614	save_perl (pTHX_ Coro__State c)
553	{	615	{
		616	if (expect_false (c->on_leave))
		617	{
		618	int i;
		619
		620	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		621	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		622	}
		623
		624	times_valid = 0;
		625
		626	if (expect_false (enable_times))
		627	{
		628	coro_times_update (); times_valid = 1;
		629	coro_times_add (c);
		630	}
		631
554	c->except = CORO_THROW;	632	c->except = CORO_THROW;
555	c->slf_frame = slf_frame;	633	c->slf_frame = slf_frame;
556		634
557	{	635	{
558	dSP;	636	dSP;
…		…
571	{	649	{
572	while (expect_true (cxix >= 0))	650	while (expect_true (cxix >= 0))
573	{	651	{
574	PERL_CONTEXT *cx = &ccstk[cxix--];	652	PERL_CONTEXT *cx = &ccstk[cxix--];
575		653
576	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))	654	if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
577	{	655	{
578	CV *cv = cx->blk_sub.cv;	656	CV *cv = cx->blk_sub.cv;
579		657
580	if (expect_true (CvDEPTH (cv)))	658	if (expect_true (CvDEPTH (cv)))
581	{	659	{
…		…
605	/* we manually unroll here, as usually 2 slots is enough */	683	/* we manually unroll here, as usually 2 slots is enough */
606	if (SLOT_COUNT >= 1) CXINC;	684	if (SLOT_COUNT >= 1) CXINC;
607	if (SLOT_COUNT >= 2) CXINC;	685	if (SLOT_COUNT >= 2) CXINC;
608	if (SLOT_COUNT >= 3) CXINC;	686	if (SLOT_COUNT >= 3) CXINC;
609	{	687	{
610	int i;	688	unsigned int i;
611	for (i = 3; i < SLOT_COUNT; ++i)	689	for (i = 3; i < SLOT_COUNT; ++i)
612	CXINC;	690	CXINC;
613	}	691	}
614	cxstack_ix -= SLOT_COUNT; /* undo allocation */	692	cxstack_ix -= SLOT_COUNT; /* undo allocation */
615		693
616	c->mainstack = PL_mainstack;	694	c->mainstack = PL_mainstack;
617		695
618	{	696	{
619	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	697	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
620		698
621	slot->defav = GvAV (PL_defgv);	699	slot->defav = GvAV (PL_defgv);
622	slot->defsv = DEFSV;	700	slot->defsv = DEFSV;
623	slot->errsv = ERRSV;	701	slot->errsv = ERRSV;
624	slot->irsgv = GvSV (irsgv);	702	slot->irsgv = GvSV (irsgv);
		703	slot->hinthv = GvHV (PL_hintgv);
625		704
626	#define VAR(name,type) slot->name = PL_ ## name;	705	#define VAR(name,type) slot->name = PL_ ## name;
627	# include "state.h"	706	# include "state.h"
628	#undef VAR	707	#undef VAR
629	}	708	}
…		…
756	#endif	835	#endif
757		836
758	/*	837	/*
759	* This overrides the default magic get method of %SIG elements.	838	* This overrides the default magic get method of %SIG elements.
760	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	839	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
761	* and instead of tryign to save and restore the hash elements, we just provide	840	* and instead of trying to save and restore the hash elements, we just provide
762	* readback here.	841	* readback here.
763	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
764	* not expecting this to actually change the hook. This is a potential problem
765	* when a schedule happens then, but we ignore this.
766	*/	842	*/
767	static int	843	static int
768	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	844	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
769	{	845	{
770	const char *s = MgPV_nolen_const (mg);	846	const char *s = MgPV_nolen_const (mg);
…		…
823	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	899	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
824		900
825	if (svp)	901	if (svp)
826	{	902	{
827	SV *old = *svp;	903	SV *old = *svp;
828	*svp = newSVsv (sv);	904	*svp = SvOK (sv) ? newSVsv (sv) : 0;
829	SvREFCNT_dec (old);	905	SvREFCNT_dec (old);
830	return 0;	906	return 0;
831	}	907	}
832	}	908	}
833		909
…		…
865		941
866	PL_runops = RUNOPS_DEFAULT;	942	PL_runops = RUNOPS_DEFAULT;
867	PL_curcop = &PL_compiling;	943	PL_curcop = &PL_compiling;
868	PL_in_eval = EVAL_NULL;	944	PL_in_eval = EVAL_NULL;
869	PL_comppad = 0;	945	PL_comppad = 0;
		946	PL_comppad_name = 0;
		947	PL_comppad_name_fill = 0;
		948	PL_comppad_name_floor = 0;
870	PL_curpm = 0;	949	PL_curpm = 0;
871	PL_curpad = 0;	950	PL_curpad = 0;
872	PL_localizing = 0;	951	PL_localizing = 0;
873	PL_dirty = 0;	952	PL_dirty = 0;
874	PL_restartop = 0;	953	PL_restartop = 0;
875	#if PERL_VERSION_ATLEAST (5,10,0)	954	#if PERL_VERSION_ATLEAST (5,10,0)
876	PL_parser = 0;	955	PL_parser = 0;
877	#endif	956	#endif
		957	PL_hints = 0;
878		958
879	/* recreate the die/warn hooks */	959	/* recreate the die/warn hooks */
880	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	960	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
881	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	961	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
882		962
883	GvSV (PL_defgv) = newSV (0);	963	GvSV (PL_defgv) = newSV (0);
884	GvAV (PL_defgv) = coro->args; coro->args = 0;	964	GvAV (PL_defgv) = coro->args; coro->args = 0;
885	GvSV (PL_errgv) = newSV (0);	965	GvSV (PL_errgv) = newSV (0);
886	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	966	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		967	GvHV (PL_hintgv) = 0;
887	PL_rs = newSVsv (GvSV (irsgv));	968	PL_rs = newSVsv (GvSV (irsgv));
888	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	969	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
889		970
890	{	971	{
891	dSP;	972	dSP;
…		…
917		998
918	PL_op = (OP *)&coro_setup_op;	999	PL_op = (OP *)&coro_setup_op;
919		1000
920	/* copy throw, in case it was set before coro_setup */	1001	/* copy throw, in case it was set before coro_setup */
921	CORO_THROW = coro->except;	1002	CORO_THROW = coro->except;
922	}
923		1003
		1004	if (expect_false (enable_times))
		1005	{
		1006	coro_times_update ();
		1007	coro_times_sub (coro);
		1008	}
		1009	}
		1010
924	static void	1011	static void
925	coro_destruct (pTHX_ struct coro *coro)	1012	coro_unwind_stacks (pTHX)
926	{	1013	{
927	if (!IN_DESTRUCT)	1014	if (!IN_DESTRUCT)
928	{	1015	{
929	/* restore all saved variables and stuff */	1016	/* restore all saved variables and stuff */
930	LEAVE_SCOPE (0);	1017	LEAVE_SCOPE (0);
…		…
938	POPSTACK_TO (PL_mainstack);	1025	POPSTACK_TO (PL_mainstack);
939		1026
940	/* unwind main stack */	1027	/* unwind main stack */
941	dounwind (-1);	1028	dounwind (-1);
942	}	1029	}
		1030	}
943		1031
944	SvREFCNT_dec (GvSV (PL_defgv));	1032	static void
945	SvREFCNT_dec (GvAV (PL_defgv));	1033	coro_destruct_perl (pTHX_ struct coro *coro)
946	SvREFCNT_dec (GvSV (PL_errgv));	1034	{
947	SvREFCNT_dec (PL_defoutgv);	1035	SV *svf [9];
948	SvREFCNT_dec (PL_rs);
949	SvREFCNT_dec (GvSV (irsgv));
950		1036
951	SvREFCNT_dec (PL_diehook);
952	SvREFCNT_dec (PL_warnhook);
953		1037	{
		1038	struct coro *current = SvSTATE_current;
		1039
		1040	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1041
		1042	save_perl (aTHX_ current);
		1043	load_perl (aTHX_ coro);
		1044
		1045	coro_unwind_stacks (aTHX);
		1046	coro_destruct_stacks (aTHX);
		1047
		1048	// now save some sv's to be free'd later
		1049	svf [0] = GvSV (PL_defgv);
		1050	svf [1] = (SV *)GvAV (PL_defgv);
		1051	svf [2] = GvSV (PL_errgv);
		1052	svf [3] = (SV *)PL_defoutgv;
		1053	svf [4] = PL_rs;
		1054	svf [5] = GvSV (irsgv);
		1055	svf [6] = (SV *)GvHV (PL_hintgv);
		1056	svf [7] = PL_diehook;
		1057	svf [8] = PL_warnhook;
		1058	assert (9 == sizeof (svf) / sizeof (*svf));
		1059
		1060	load_perl (aTHX_ current);
		1061	}
		1062
		1063	{
		1064	unsigned int i;
		1065
		1066	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1067	SvREFCNT_dec (svf [i]);
		1068
954	SvREFCNT_dec (coro->saved_deffh);	1069	SvREFCNT_dec (coro->saved_deffh);
955	SvREFCNT_dec (coro->rouse_cb);	1070	SvREFCNT_dec (coro->rouse_cb);
956	SvREFCNT_dec (coro->invoke_cb);	1071	SvREFCNT_dec (coro->invoke_cb);
957	SvREFCNT_dec (coro->invoke_av);	1072	SvREFCNT_dec (coro->invoke_av);
958		1073	}
959	coro_destruct_stacks (aTHX);
960	}	1074	}
961		1075
962	INLINE void	1076	INLINE void
963	free_coro_mortal (pTHX)	1077	free_coro_mortal (pTHX)
964	{	1078	{
…		…
1161	/* somebody or something will hit me for both perl_run and PL_restartop */	1275	/* somebody or something will hit me for both perl_run and PL_restartop */
1162	PL_restartop = PL_op;	1276	PL_restartop = PL_op;
1163	perl_run (PL_curinterp);	1277	perl_run (PL_curinterp);
1164	/*	1278	/*
1165	* Unfortunately, there is no way to get at the return values of the	1279	* Unfortunately, there is no way to get at the return values of the
1166	* coro body here, as perl_run destroys these	1280	* coro body here, as perl_run destroys these. Likewise, we cannot catch
		1281	* runtime errors here, as this is just a random interpreter, not a thread.
1167	*/	1282	*/
1168		1283
1169	/*	1284	/*
1170	* If perl-run returns we assume exit() was being called or the coro	1285	* If perl-run returns we assume exit() was being called or the coro
1171	* fell off the end, which seems to be the only valid (non-bug)	1286	* fell off the end, which seems to be the only valid (non-bug)
1172	* reason for perl_run to return. We try to exit by jumping to the	1287	* reason for perl_run to return. We try to exit by jumping to the
1173	* bootstrap-time "top" top_env, as we cannot restore the "main"	1288	* bootstrap-time "top" top_env, as we cannot restore the "main"
1174	* coroutine as Coro has no such concept	1289	* coroutine as Coro has no such concept.
		1290	* This actually isn't valid with the pthread backend, but OSes requiring
		1291	* that backend are too broken to do it in a standards-compliant way.
1175	*/	1292	*/
1176	PL_top_env = main_top_env;	1293	PL_top_env = main_top_env;
1177	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1294	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1178	}	1295	}
1179	}	1296	}
…		…
1256	cctx_destroy (coro_cctx *cctx)	1373	cctx_destroy (coro_cctx *cctx)
1257	{	1374	{
1258	if (!cctx)	1375	if (!cctx)
1259	return;	1376	return;
1260		1377
1261	assert (cctx != cctx_current);//D temporary	1378	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1262		1379
1263	--cctx_count;	1380	--cctx_count;
1264	coro_destroy (&cctx->cctx);	1381	coro_destroy (&cctx->cctx);
1265		1382
1266	/* coro_transfer creates new, empty cctx's */	1383	/* coro_transfer creates new, empty cctx's */
…		…
1330	/* TODO: throwing up here is considered harmful */	1447	/* TODO: throwing up here is considered harmful */
1331		1448
1332	if (expect_true (prev != next))	1449	if (expect_true (prev != next))
1333	{	1450	{
1334	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1451	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1335	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");	1452	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1336		1453
1337	if (expect_false (next->flags & CF_RUNNING))
1338	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1339
1340	if (expect_false (next->flags & CF_DESTROYED))	1454	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1341	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1455	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1342		1456
1343	#if !PERL_VERSION_ATLEAST (5,10,0)	1457	#if !PERL_VERSION_ATLEAST (5,10,0)
1344	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1458	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1345	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1459	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1346	#endif	1460	#endif
…		…
1384	coro_setup (aTHX_ next);	1498	coro_setup (aTHX_ next);
1385	}	1499	}
1386	else	1500	else
1387	load_perl (aTHX_ next);	1501	load_perl (aTHX_ next);
1388		1502
1389	assert (!prev->cctx);//D temporary
1390
1391	/* possibly untie and reuse the cctx */	1503	/* possibly untie and reuse the cctx */
1392	if (expect_true (	1504	if (expect_true (
1393	cctx_current->idle_sp == STACKLEVEL	1505	cctx_current->idle_sp == STACKLEVEL
1394	&& !(cctx_current->flags & CC_TRACE)	1506	&& !(cctx_current->flags & CC_TRACE)
1395	&& !force_cctx	1507	&& !force_cctx
…		…
1436	coro_state_destroy (pTHX_ struct coro *coro)	1548	coro_state_destroy (pTHX_ struct coro *coro)
1437	{	1549	{
1438	if (coro->flags & CF_DESTROYED)	1550	if (coro->flags & CF_DESTROYED)
1439	return 0;	1551	return 0;
1440		1552
1441	if (coro->on_destroy)	1553	if (coro->on_destroy && !PL_dirty)
1442	coro->on_destroy (aTHX_ coro);	1554	coro->on_destroy (aTHX_ coro);
1443		1555
1444	coro->flags |= CF_DESTROYED;	1556	coro->flags |= CF_DESTROYED;
1445		1557
1446	if (coro->flags & CF_READY)	1558	if (coro->flags & CF_READY)
…		…
1450	--coro_nready;	1562	--coro_nready;
1451	}	1563	}
1452	else	1564	else
1453	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1565	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1454		1566
1455	if (coro->mainstack && coro->mainstack != main_mainstack)	1567	if (coro->mainstack
1456	{	1568	&& coro->mainstack != main_mainstack
1457	struct coro temp;	1569	&& coro->slot
1458		1570	&& !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);	1571	coro_destruct_perl (aTHX_ coro);
1465
1466	load_perl (aTHX_ &temp);
1467
1468	coro->slot = 0;
1469	}
1470		1572
1471	cctx_destroy (coro->cctx);	1573	cctx_destroy (coro->cctx);
1472	SvREFCNT_dec (coro->startcv);	1574	SvREFCNT_dec (coro->startcv);
1473	SvREFCNT_dec (coro->args);	1575	SvREFCNT_dec (coro->args);
1474	SvREFCNT_dec (CORO_THROW);	1576	SvREFCNT_dec (CORO_THROW);
…		…
1533		1635
1534	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1636	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1535	TRANSFER (ta, 1);	1637	TRANSFER (ta, 1);
1536	}	1638	}
1537		1639
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 ********************************************************************/	1640	/** Coro ********************************************************************/
1562		1641
1563	INLINE void	1642	INLINE void
1564	coro_enq (pTHX_ struct coro *coro)	1643	coro_enq (pTHX_ struct coro *coro)
1565	{	1644	{
1566	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1645	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1567	}
1568		1646
1569	INLINE SV *	1647	SvREFCNT_inc_NN (coro->hv);
		1648
		1649	coro->next_ready = 0;
		1650	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1651	ready [1] = coro;
		1652	}
		1653
		1654	INLINE struct coro *
1570	coro_deq (pTHX)	1655	coro_deq (pTHX)
1571	{	1656	{
1572	int prio;	1657	int prio;
1573		1658
1574	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1659	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1575	if (AvFILLp (coro_ready [prio]) >= 0)	1660	{
1576	return av_shift (coro_ready [prio]);	1661	struct coro **ready = coro_ready [prio];
		1662
		1663	if (ready [0])
		1664	{
		1665	struct coro *coro = ready [0];
		1666	ready [0] = coro->next_ready;
		1667	return coro;
		1668	}
		1669	}
1577		1670
1578	return 0;	1671	return 0;
		1672	}
		1673
		1674	static void
		1675	invoke_sv_ready_hook_helper (void)
		1676	{
		1677	dTHX;
		1678	dSP;
		1679
		1680	ENTER;
		1681	SAVETMPS;
		1682
		1683	PUSHMARK (SP);
		1684	PUTBACK;
		1685	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1686
		1687	FREETMPS;
		1688	LEAVE;
1579	}	1689	}
1580		1690
1581	static int	1691	static int
1582	api_ready (pTHX_ SV *coro_sv)	1692	api_ready (pTHX_ SV *coro_sv)
1583	{	1693	{
1584	struct coro *coro;
1585	SV *sv_hook;
1586	void (*xs_hook)(void);
1587
1588	coro = SvSTATE (coro_sv);	1694	struct coro *coro = SvSTATE (coro_sv);
1589		1695
1590	if (coro->flags & CF_READY)	1696	if (coro->flags & CF_READY)
1591	return 0;	1697	return 0;
1592		1698
1593	coro->flags |= CF_READY;	1699	coro->flags |= CF_READY;
1594		1700
1595	sv_hook = coro_nready ? 0 : coro_readyhook;
1596	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1597
1598	coro_enq (aTHX_ coro);	1701	coro_enq (aTHX_ coro);
1599	++coro_nready;
1600		1702
1601	if (sv_hook)	1703	if (!coro_nready++)
1602	{	1704	if (coroapi.readyhook)
1603	dSP;	1705	coroapi.readyhook ();
1604
1605	ENTER;
1606	SAVETMPS;
1607
1608	PUSHMARK (SP);
1609	PUTBACK;
1610	call_sv (sv_hook, G_VOID | G_DISCARD);
1611
1612	FREETMPS;
1613	LEAVE;
1614	}
1615
1616	if (xs_hook)
1617	xs_hook ();
1618		1706
1619	return 1;	1707	return 1;
1620	}	1708	}
1621		1709
1622	static int	1710	static int
…		…
1645	static void	1733	static void
1646	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1734	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1647	{	1735	{
1648	for (;;)	1736	for (;;)
1649	{	1737	{
1650	SV *next_sv = coro_deq (aTHX);	1738	struct coro *next = coro_deq (aTHX);
1651		1739
1652	if (expect_true (next_sv))	1740	if (expect_true (next))
1653	{	1741	{
1654	struct coro *next = SvSTATE_hv (next_sv);
1655
1656	/* cannot transfer to destroyed coros, skip and look for next */	1742	/* cannot transfer to destroyed coros, skip and look for next */
1657	if (expect_false (next->flags & CF_DESTROYED))	1743	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1658	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1744	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1659	else	1745	else
1660	{	1746	{
1661	next->flags &= ~CF_READY;	1747	next->flags &= ~CF_READY;
1662	--coro_nready;	1748	--coro_nready;
1663		1749
…		…
1670	/* nothing to schedule: call the idle handler */	1756	/* nothing to schedule: call the idle handler */
1671	if (SvROK (sv_idle)	1757	if (SvROK (sv_idle)
1672	&& SvOBJECT (SvRV (sv_idle)))	1758	&& SvOBJECT (SvRV (sv_idle)))
1673	{	1759	{
1674	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */	1760	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1675	api_ready (SvRV (sv_idle));	1761	api_ready (aTHX_ SvRV (sv_idle));
1676	--coro_nready;	1762	--coro_nready;
1677	}	1763	}
1678	else	1764	else
1679	{	1765	{
1680	dSP;	1766	dSP;
…		…
1841	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	1927	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1842	api_ready (aTHX_ sv_manager);	1928	api_ready (aTHX_ sv_manager);
1843		1929
1844	frame->prepare = prepare_schedule;	1930	frame->prepare = prepare_schedule;
1845	frame->check = slf_check_repeat;	1931	frame->check = slf_check_repeat;
		1932
		1933	/* as a minor optimisation, we could unwind all stacks here */
		1934	/* but that puts extra pressure on pp_slf, and is not worth much */
		1935	/*coro_unwind_stacks (aTHX);*/
1846	}	1936	}
1847		1937
1848	/*****************************************************************************/	1938	/*****************************************************************************/
1849	/* async pool handler */	1939	/* async pool handler */
1850		1940
…		…
1928		2018
1929	static void	2019	static void
1930	coro_rouse_callback (pTHX_ CV *cv)	2020	coro_rouse_callback (pTHX_ CV *cv)
1931	{	2021	{
1932	dXSARGS;	2022	dXSARGS;
1933	SV *data = (SV *)GENSUB_ARG;	2023	SV *data = (SV *)S_GENSUB_ARG;
1934		2024
1935	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2025	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1936	{	2026	{
1937	/* first call, set args */	2027	/* first call, set args */
		2028	SV *coro = SvRV (data);
1938	AV *av = newAV ();	2029	AV *av = newAV ();
1939	SV *coro = SvRV (data);
1940		2030
1941	SvRV_set (data, (SV *)av);	2031	SvRV_set (data, (SV *)av);
1942	api_ready (aTHX_ coro);
1943	SvREFCNT_dec (coro);
1944		2032
1945	/* better take a full copy of the arguments */	2033	/* better take a full copy of the arguments */
1946	while (items--)	2034	while (items--)
1947	av_store (av, items, newSVsv (ST (items)));	2035	av_store (av, items, newSVsv (ST (items)));
		2036
		2037	api_ready (aTHX_ coro);
		2038	SvREFCNT_dec (coro);
1948	}	2039	}
1949		2040
1950	XSRETURN_EMPTY;	2041	XSRETURN_EMPTY;
1951	}	2042	}
1952		2043
…		…
1969		2060
1970	EXTEND (SP, AvFILLp (av) + 1);	2061	EXTEND (SP, AvFILLp (av) + 1);
1971	for (i = 0; i <= AvFILLp (av); ++i)	2062	for (i = 0; i <= AvFILLp (av); ++i)
1972	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2063	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1973		2064
1974	/* we have stolen the elements, so ste length to zero and free */	2065	/* we have stolen the elements, so set length to zero and free */
1975	AvFILLp (av) = -1;	2066	AvFILLp (av) = -1;
1976	av_undef (av);	2067	av_undef (av);
1977		2068
1978	PUTBACK;	2069	PUTBACK;
1979	}	2070	}
…		…
2003	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2094	|| SvTYPE (SvRV (cb)) != SVt_PVCV
2004	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2095	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2005	croak ("Coro::rouse_wait called with illegal callback argument,");	2096	croak ("Coro::rouse_wait called with illegal callback argument,");
2006		2097
2007	{	2098	{
2008	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2099	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2009	SV *data = (SV *)GENSUB_ARG;	2100	SV *data = (SV *)S_GENSUB_ARG;
2010		2101
2011	frame->data = (void *)data;	2102	frame->data = (void *)data;
2012	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2103	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2013	frame->check = slf_check_rouse_wait;	2104	frame->check = slf_check_rouse_wait;
2014	}	2105	}
…		…
2018	coro_new_rouse_cb (pTHX)	2109	coro_new_rouse_cb (pTHX)
2019	{	2110	{
2020	HV *hv = (HV *)SvRV (coro_current);	2111	HV *hv = (HV *)SvRV (coro_current);
2021	struct coro *coro = SvSTATE_hv (hv);	2112	struct coro *coro = SvSTATE_hv (hv);
2022	SV *data = newRV_inc ((SV *)hv);	2113	SV *data = newRV_inc ((SV *)hv);
2023	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2114	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2024		2115
2025	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2116	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2026	SvREFCNT_dec (data); /* magicext increases the refcount */	2117	SvREFCNT_dec (data); /* magicext increases the refcount */
2027		2118
2028	SvREFCNT_dec (coro->rouse_cb);	2119	SvREFCNT_dec (coro->rouse_cb);
…		…
2269		2360
2270	PL_op->op_ppaddr = pp_slf;	2361	PL_op->op_ppaddr = pp_slf;
2271	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2362	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2272		2363
2273	PL_op = (OP *)&slf_restore;	2364	PL_op = (OP *)&slf_restore;
		2365	}
		2366
		2367	/*****************************************************************************/
		2368	/* dynamic wind */
		2369
		2370	static void
		2371	on_enterleave_call (pTHX_ SV *cb)
		2372	{
		2373	dSP;
		2374
		2375	PUSHSTACK;
		2376
		2377	PUSHMARK (SP);
		2378	PUTBACK;
		2379	call_sv (cb, G_VOID | G_DISCARD);
		2380	SPAGAIN;
		2381
		2382	POPSTACK;
		2383	}
		2384
		2385	static SV *
		2386	coro_avp_pop_and_free (pTHX_ AV **avp)
		2387	{
		2388	AV *av = *avp;
		2389	SV *res = av_pop (av);
		2390
		2391	if (AvFILLp (av) < 0)
		2392	{
		2393	*avp = 0;
		2394	SvREFCNT_dec (av);
		2395	}
		2396
		2397	return res;
		2398	}
		2399
		2400	static void
		2401	coro_pop_on_enter (pTHX_ void *coro)
		2402	{
		2403	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2404	SvREFCNT_dec (cb);
		2405	}
		2406
		2407	static void
		2408	coro_pop_on_leave (pTHX_ void *coro)
		2409	{
		2410	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2411	on_enterleave_call (aTHX_ sv_2mortal (cb));
2274	}	2412	}
2275		2413
2276	/*****************************************************************************/	2414	/*****************************************************************************/
2277	/* PerlIO::cede */	2415	/* PerlIO::cede */
2278		2416
…		…
2352	/* Coro::Semaphore & Coro::Signal */	2490	/* Coro::Semaphore & Coro::Signal */
2353		2491
2354	static SV *	2492	static SV *
2355	coro_waitarray_new (pTHX_ int count)	2493	coro_waitarray_new (pTHX_ int count)
2356	{	2494	{
2357	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2495	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2358	AV *av = newAV ();	2496	AV *av = newAV ();
2359	SV **ary;	2497	SV **ary;
2360		2498
2361	/* unfortunately, building manually saves memory */	2499	/* unfortunately, building manually saves memory */
2362	Newx (ary, 2, SV *);	2500	Newx (ary, 2, SV *);
2363	AvALLOC (av) = ary;	2501	AvALLOC (av) = ary;
		2502	#if PERL_VERSION_ATLEAST (5,10,0)
2364	/*AvARRAY (av) = ary;*/	2503	AvARRAY (av) = ary;
		2504	#else
2365	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2505	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2506	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2507	SvPVX ((SV *)av) = (char *)ary;
		2508	#endif
2366	AvMAX (av) = 1;	2509	AvMAX (av) = 1;
2367	AvFILLp (av) = 0;	2510	AvFILLp (av) = 0;
2368	ary [0] = newSViv (count);	2511	ary [0] = newSViv (count);
2369		2512
2370	return newRV_noinc ((SV *)av);	2513	return newRV_noinc ((SV *)av);
…		…
2499	{	2642	{
2500	if (items >= 2)	2643	if (items >= 2)
2501	{	2644	{
2502	/* callback form */	2645	/* callback form */
2503	AV *av = (AV *)SvRV (arg [0]);	2646	AV *av = (AV *)SvRV (arg [0]);
2504	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2647	SV *cb_cv = s_get_cv_croak (arg [1]);
2505		2648
2506	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2649	av_push (av, SvREFCNT_inc_NN (cb_cv));
2507		2650
2508	if (SvIVX (AvARRAY (av)[0]) > 0)	2651	if (SvIVX (AvARRAY (av)[0]) > 0)
2509	coro_semaphore_adjust (aTHX_ av, 0);	2652	coro_semaphore_adjust (aTHX_ av, 0);
2510		2653
2511	frame->prepare = prepare_nop;	2654	frame->prepare = prepare_nop;
…		…
2535	AvARRAY (av)[0] = AvARRAY (av)[1];	2678	AvARRAY (av)[0] = AvARRAY (av)[1];
2536	AvARRAY (av)[1] = cb;	2679	AvARRAY (av)[1] = cb;
2537		2680
2538	cb = av_shift (av);	2681	cb = av_shift (av);
2539		2682
		2683	if (SvTYPE (cb) == SVt_PVCV)
		2684	{
		2685	dSP;
		2686	PUSHMARK (SP);
		2687	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2688	PUTBACK;
		2689	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2690	}
		2691	else
		2692	{
2540	api_ready (aTHX_ cb);	2693	api_ready (aTHX_ cb);
2541	sv_setiv (cb, 0); /* signal waiter */	2694	sv_setiv (cb, 0); /* signal waiter */
		2695	}
		2696
2542	SvREFCNT_dec (cb);	2697	SvREFCNT_dec (cb);
2543		2698
2544	--count;	2699	--count;
2545	}	2700	}
2546	}	2701	}
…		…
2555	static void	2710	static void
2556	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2711	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2557	{	2712	{
2558	AV *av = (AV *)SvRV (arg [0]);	2713	AV *av = (AV *)SvRV (arg [0]);
2559		2714
		2715	if (items >= 2)
		2716	{
		2717	SV *cb_cv = s_get_cv_croak (arg [1]);
		2718	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2719
2560	if (SvIVX (AvARRAY (av)[0]))	2720	if (SvIVX (AvARRAY (av)[0]))
		2721	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
		2722
		2723	frame->prepare = prepare_nop;
		2724	frame->check = slf_check_nop;
		2725	}
		2726	else if (SvIVX (AvARRAY (av)[0]))
2561	{	2727	{
2562	SvIVX (AvARRAY (av)[0]) = 0;	2728	SvIVX (AvARRAY (av)[0]) = 0;
2563	frame->prepare = prepare_nop;	2729	frame->prepare = prepare_nop;
2564	frame->check = slf_check_nop;	2730	frame->check = slf_check_nop;
2565	}	2731	}
2566	else	2732	else
2567	{	2733	{
2568	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2734	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2569		2735
2570	av_push (av, waiter);	2736	av_push (av, waiter);
2571		2737
2572	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2738	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2573	frame->prepare = prepare_schedule;	2739	frame->prepare = prepare_schedule;
…		…
2591		2757
2592	static void	2758	static void
2593	coro_aio_callback (pTHX_ CV *cv)	2759	coro_aio_callback (pTHX_ CV *cv)
2594	{	2760	{
2595	dXSARGS;	2761	dXSARGS;
2596	AV *state = (AV *)GENSUB_ARG;	2762	AV *state = (AV *)S_GENSUB_ARG;
2597	SV *coro = av_pop (state);	2763	SV *coro = av_pop (state);
2598	SV *data_sv = newSV (sizeof (struct io_state));	2764	SV *data_sv = newSV (sizeof (struct io_state));
2599		2765
2600	av_extend (state, items - 1);	2766	av_extend (state, items - 1);
2601		2767
…		…
2715		2881
2716	for (i = 0; i < items; ++i)	2882	for (i = 0; i < items; ++i)
2717	PUSHs (arg [i]);	2883	PUSHs (arg [i]);
2718		2884
2719	/* now push the callback closure */	2885	/* now push the callback closure */
2720	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	2886	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2721		2887
2722	/* now call the AIO function - we assume our request is uncancelable */	2888	/* now call the AIO function - we assume our request is uncancelable */
2723	PUTBACK;	2889	PUTBACK;
2724	call_sv ((SV *)req, G_VOID | G_DISCARD);	2890	call_sv ((SV *)req, G_VOID | G_DISCARD);
2725	}	2891	}
…		…
2812		2978
2813	if (!svp) croak ("Time::HiRes is required");	2979	if (!svp) croak ("Time::HiRes is required");
2814	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	2980	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2815		2981
2816	nvtime = INT2PTR (double (*)(), SvIV (*svp));	2982	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		2983
		2984	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		2985	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2817	}	2986	}
2818		2987
2819	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2988	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2820	}	2989	}
2821		2990
2822	SV *	2991	SV *
2823	new (char *klass, ...)	2992	new (char *klass, ...)
2824	ALIAS:	2993	ALIAS:
…		…
2826	CODE:	2995	CODE:
2827	{	2996	{
2828	struct coro *coro;	2997	struct coro *coro;
2829	MAGIC *mg;	2998	MAGIC *mg;
2830	HV *hv;	2999	HV *hv;
2831	CV *cb;	3000	SV *cb;
2832	int i;	3001	int i;
2833		3002
2834	if (items > 1)	3003	if (items > 1)
2835	{	3004	{
2836	cb = coro_sv_2cv (aTHX_ ST (1));	3005	cb = s_get_cv_croak (ST (1));
2837		3006
2838	if (!ix)	3007	if (!ix)
2839	{	3008	{
2840	if (CvISXSUB (cb))	3009	if (CvISXSUB (cb))
2841	croak ("Coro::State doesn't support XS functions as coroutine start, caught");	3010	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
…		…
2863	av_extend (coro->args, items - 1 + ix - 1);	3032	av_extend (coro->args, items - 1 + ix - 1);
2864		3033
2865	if (ix)	3034	if (ix)
2866	{	3035	{
2867	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));	3036	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2868	cb = cv_coro_run;	3037	cb = (SV *)cv_coro_run;
2869	}	3038	}
2870		3039
2871	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);	3040	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2872		3041
2873	for (i = 2; i < items; i++)	3042	for (i = 2; i < items; i++)
…		…
2899	SV *	3068	SV *
2900	clone (Coro::State coro)	3069	clone (Coro::State coro)
2901	CODE:	3070	CODE:
2902	{	3071	{
2903	#if CORO_CLONE	3072	#if CORO_CLONE
2904	struct coro *ncoro = coro_clone (coro);	3073	struct coro *ncoro = coro_clone (aTHX_ coro);
2905	MAGIC *mg;	3074	MAGIC *mg;
2906	/* TODO: too much duplication */	3075	/* TODO: too much duplication */
2907	ncoro->hv = newHV ();	3076	ncoro->hv = newHV ();
2908	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);	3077	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2909	mg->mg_flags |= MGf_DUP;	3078	mg->mg_flags |= MGf_DUP;
…		…
2971	eval = 1	3140	eval = 1
2972	CODE:	3141	CODE:
2973	{	3142	{
2974	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3143	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2975	{	3144	{
2976	struct coro temp;	3145	struct coro *current = SvSTATE_current;
2977		3146
2978	if (!(coro->flags & CF_RUNNING))	3147	if (current != coro)
2979	{	3148	{
2980	PUTBACK;	3149	PUTBACK;
2981	save_perl (aTHX_ &temp);	3150	save_perl (aTHX_ current);
2982	load_perl (aTHX_ coro);	3151	load_perl (aTHX_ coro);
		3152	SPAGAIN;
2983	}	3153	}
2984		3154
2985	{
2986	dSP;
2987	ENTER;
2988	SAVETMPS;
2989	PUTBACK;
2990	PUSHSTACK;	3155	PUSHSTACK;
		3156
2991	PUSHMARK (SP);	3157	PUSHMARK (SP);
		3158	PUTBACK;
2992		3159
2993	if (ix)	3160	if (ix)
2994	eval_sv (coderef, 0);	3161	eval_sv (coderef, 0);
2995	else	3162	else
2996	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3163	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2997		3164
2998	POPSTACK;	3165	POPSTACK;
2999	SPAGAIN;	3166	SPAGAIN;
3000	FREETMPS;
3001	LEAVE;
3002	PUTBACK;
3003	}
3004		3167
3005	if (!(coro->flags & CF_RUNNING))	3168	if (current != coro)
3006	{	3169	{
		3170	PUTBACK;
3007	save_perl (aTHX_ coro);	3171	save_perl (aTHX_ coro);
3008	load_perl (aTHX_ &temp);	3172	load_perl (aTHX_ current);
3009	SPAGAIN;	3173	SPAGAIN;
3010	}	3174	}
3011	}	3175	}
3012	}	3176	}
3013		3177
…		…
3017	ALIAS:	3181	ALIAS:
3018	is_ready = CF_READY	3182	is_ready = CF_READY
3019	is_running = CF_RUNNING	3183	is_running = CF_RUNNING
3020	is_new = CF_NEW	3184	is_new = CF_NEW
3021	is_destroyed = CF_DESTROYED	3185	is_destroyed = CF_DESTROYED
		3186	is_suspended = CF_SUSPENDED
3022	CODE:	3187	CODE:
3023	RETVAL = boolSV (coro->flags & ix);	3188	RETVAL = boolSV (coro->flags & ix);
3024	OUTPUT:	3189	OUTPUT:
3025	RETVAL	3190	RETVAL
3026		3191
…		…
3030	CODE:	3195	CODE:
3031	{	3196	{
3032	struct coro *current = SvSTATE_current;	3197	struct coro *current = SvSTATE_current;
3033	SV **throwp = self == current ? &CORO_THROW : &self->except;	3198	SV **throwp = self == current ? &CORO_THROW : &self->except;
3034	SvREFCNT_dec (*throwp);	3199	SvREFCNT_dec (*throwp);
		3200	SvGETMAGIC (throw);
3035	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3201	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
3036	}	3202	}
3037		3203
3038	void	3204	void
3039	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3205	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
…		…
3091	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3257	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3092		3258
3093	SV *tmp = *src; *src = *dst; *dst = tmp;	3259	SV *tmp = *src; *src = *dst; *dst = tmp;
3094	}	3260	}
3095		3261
		3262	void
		3263	cancel (Coro::State self)
		3264	CODE:
		3265	coro_state_destroy (aTHX_ self);
		3266	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3267
		3268
		3269	SV *
		3270	enable_times (int enabled = enable_times)
		3271	CODE:
		3272	{
		3273	RETVAL = boolSV (enable_times);
		3274
		3275	if (enabled != enable_times)
		3276	{
		3277	enable_times = enabled;
		3278
		3279	coro_times_update ();
		3280	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3281	}
		3282	}
		3283	OUTPUT:
		3284	RETVAL
		3285
		3286	void
		3287	times (Coro::State self)
		3288	PPCODE:
		3289	{
		3290	struct coro *current = SvSTATE (coro_current);
		3291
		3292	if (expect_false (current == self))
		3293	{
		3294	coro_times_update ();
		3295	coro_times_add (SvSTATE (coro_current));
		3296	}
		3297
		3298	EXTEND (SP, 2);
		3299	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3300	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3301
		3302	if (expect_false (current == self))
		3303	coro_times_sub (SvSTATE (coro_current));
		3304	}
3096		3305
3097	MODULE = Coro::State PACKAGE = Coro	3306	MODULE = Coro::State PACKAGE = Coro
3098		3307
3099	BOOT:	3308	BOOT:
3100	{	3309	{
3101	int i;
3102
3103	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3310	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3104	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3311	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3105	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3312	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3106	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3313	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3107	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3314	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3108	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3315	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3109	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3316	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3110	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3317	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
…		…
3115	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3322	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3116	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3323	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
3117		3324
3118	coro_stash = gv_stashpv ("Coro", TRUE);	3325	coro_stash = gv_stashpv ("Coro", TRUE);
3119		3326
3120	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3327	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3121	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3328	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3122	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3329	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3123	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3330	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3124	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3331	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3125	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3332	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3126
3127	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3128	coro_ready[i] = newAV ();
3129		3333
3130	{	3334	{
3131	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3335	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3132		3336
3133	coroapi.schedule = api_schedule;	3337	coroapi.schedule = api_schedule;
…		…
3174	cede_notself (...)	3378	cede_notself (...)
3175	CODE:	3379	CODE:
3176	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3380	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3177		3381
3178	void	3382	void
3179	_cancel (Coro::State self)
3180	CODE:
3181	coro_state_destroy (aTHX_ self);
3182	coro_call_on_destroy (aTHX_ self);
3183
3184	void
3185	_set_current (SV *current)	3383	_set_current (SV *current)
3186	PROTOTYPE: $	3384	PROTOTYPE: $
3187	CODE:	3385	CODE:
3188	SvREFCNT_dec (SvRV (coro_current));	3386	SvREFCNT_dec (SvRV (coro_current));
3189	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));	3387	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
…		…
3191	void	3389	void
3192	_set_readyhook (SV *hook)	3390	_set_readyhook (SV *hook)
3193	PROTOTYPE: $	3391	PROTOTYPE: $
3194	CODE:	3392	CODE:
3195	SvREFCNT_dec (coro_readyhook);	3393	SvREFCNT_dec (coro_readyhook);
		3394	SvGETMAGIC (hook);
		3395	if (SvOK (hook))
		3396	{
3196	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3397	coro_readyhook = newSVsv (hook);
		3398	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3399	}
		3400	else
		3401	{
		3402	coro_readyhook = 0;
		3403	CORO_READYHOOK = 0;
		3404	}
3197		3405
3198	int	3406	int
3199	prio (Coro::State coro, int newprio = 0)	3407	prio (Coro::State coro, int newprio = 0)
3200	PROTOTYPE: $;$	3408	PROTOTYPE: $;$
3201	ALIAS:	3409	ALIAS:
…		…
3207	if (items > 1)	3415	if (items > 1)
3208	{	3416	{
3209	if (ix)	3417	if (ix)
3210	newprio = coro->prio - newprio;	3418	newprio = coro->prio - newprio;
3211		3419
3212	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3420	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3213	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3421	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3214		3422
3215	coro->prio = newprio;	3423	coro->prio = newprio;
3216	}	3424	}
3217	}	3425	}
3218	OUTPUT:	3426	OUTPUT:
…		…
3231	PROTOTYPE:	3439	PROTOTYPE:
3232	CODE:	3440	CODE:
3233	RETVAL = coro_nready;	3441	RETVAL = coro_nready;
3234	OUTPUT:	3442	OUTPUT:
3235	RETVAL	3443	RETVAL
		3444
		3445	void
		3446	suspend (Coro::State self)
		3447	PROTOTYPE: $
		3448	CODE:
		3449	self->flags |= CF_SUSPENDED;
		3450
		3451	void
		3452	resume (Coro::State self)
		3453	PROTOTYPE: $
		3454	CODE:
		3455	self->flags &= ~CF_SUSPENDED;
3236		3456
3237	void	3457	void
3238	_pool_handler (...)	3458	_pool_handler (...)
3239	CODE:	3459	CODE:
3240	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3460	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
…		…
3295	rouse_wait (...)	3515	rouse_wait (...)
3296	PROTOTYPE: ;$	3516	PROTOTYPE: ;$
3297	PPCODE:	3517	PPCODE:
3298	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3518	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3299		3519
		3520	void
		3521	on_enter (SV *block)
		3522	ALIAS:
		3523	on_leave = 1
		3524	PROTOTYPE: &
		3525	CODE:
		3526	{
		3527	struct coro *coro = SvSTATE_current;
		3528	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3529
		3530	block = s_get_cv_croak (block);
		3531
		3532	if (!*avp)
		3533	*avp = newAV ();
		3534
		3535	av_push (*avp, SvREFCNT_inc (block));
		3536
		3537	if (!ix)
		3538	on_enterleave_call (aTHX_ block);
		3539
		3540	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3541	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3542	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3543	}
		3544
3300		3545
3301	MODULE = Coro::State PACKAGE = PerlIO::cede	3546	MODULE = Coro::State PACKAGE = PerlIO::cede
3302		3547
3303	BOOT:	3548	BOOT:
3304	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3549	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3307	MODULE = Coro::State PACKAGE = Coro::Semaphore	3552	MODULE = Coro::State PACKAGE = Coro::Semaphore
3308		3553
3309	SV *	3554	SV *
3310	new (SV *klass, SV *count = 0)	3555	new (SV *klass, SV *count = 0)
3311	CODE:	3556	CODE:
		3557	{
		3558	int semcnt = 1;
		3559
		3560	if (count)
		3561	{
		3562	SvGETMAGIC (count);
		3563
		3564	if (SvOK (count))
		3565	semcnt = SvIV (count);
		3566	}
		3567
3312	RETVAL = sv_bless (	3568	RETVAL = sv_bless (
3313	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3569	coro_waitarray_new (aTHX_ semcnt),
3314	GvSTASH (CvGV (cv))	3570	GvSTASH (CvGV (cv))
3315	);	3571	);
		3572	}
3316	OUTPUT:	3573	OUTPUT:
3317	RETVAL	3574	RETVAL
3318		3575
3319	# helper for Coro::Channel	3576	# helper for Coro::Channel and others
3320	SV *	3577	SV *
3321	_alloc (int count)	3578	_alloc (int count)
3322	CODE:	3579	CODE:
3323	RETVAL = coro_waitarray_new (aTHX_ count);	3580	RETVAL = coro_waitarray_new (aTHX_ count);
3324	OUTPUT:	3581	OUTPUT:
…		…
3382	for (i = 1; i <= wcount; ++i)	3639	for (i = 1; i <= wcount; ++i)
3383	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3640	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3384	}	3641	}
3385	}	3642	}
3386		3643
		3644	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3645
		3646	void
		3647	_may_delete (SV *sem, int count, int extra_refs)
		3648	PPCODE:
		3649	{
		3650	AV *av = (AV *)SvRV (sem);
		3651
		3652	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3653	&& AvFILLp (av) == 0 /* no waiters, just count */
		3654	&& SvIV (AvARRAY (av)[0]) == count)
		3655	XSRETURN_YES;
		3656
		3657	XSRETURN_NO;
		3658	}
		3659
3387	MODULE = Coro::State PACKAGE = Coro::Signal	3660	MODULE = Coro::State PACKAGE = Coro::Signal
3388		3661
3389	SV *	3662	SV *
3390	new (SV *klass)	3663	new (SV *klass)
3391	CODE:	3664	CODE:
…		…
3462		3735
3463	void	3736	void
3464	_register (char *target, char *proto, SV *req)	3737	_register (char *target, char *proto, SV *req)
3465	CODE:	3738	CODE:
3466	{	3739	{
3467	CV *req_cv = coro_sv_2cv (aTHX_ req);	3740	SV *req_cv = s_get_cv_croak (req);
3468	/* newXSproto doesn't return the CV on 5.8 */	3741	/* newXSproto doesn't return the CV on 5.8 */
3469	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3742	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3470	sv_setpv ((SV *)slf_cv, proto);	3743	sv_setpv ((SV *)slf_cv, proto);
3471	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3744	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3472	}	3745	}
3473		3746
		3747	MODULE = Coro::State PACKAGE = Coro::Select
		3748
		3749	void
		3750	patch_pp_sselect ()
		3751	CODE:
		3752	if (!coro_old_pp_sselect)
		3753	{
		3754	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3755	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3756	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3757	}
		3758
		3759	void
		3760	unpatch_pp_sselect ()
		3761	CODE:
		3762	if (coro_old_pp_sselect)
		3763	{
		3764	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3765	coro_old_pp_sselect = 0;
		3766	}
		3767
		3768

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