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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.323 by root, Sat Nov 22 06:03:10 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
…		…
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;
…		…
194	static CV *cv_coro_state_new;	147	static CV *cv_coro_state_new;
195		148
196	/* Coro::AnyEvent */	149	/* Coro::AnyEvent */
197	static SV *sv_activity;	150	static SV *sv_activity;
198		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
199	static struct coro_cctx *cctx_first;	158	static struct coro_cctx *cctx_first;
200	static int cctx_count, cctx_idle;	159	static int cctx_count, cctx_idle;
201		160
202	enum {	161	enum {
203	CC_MAPPED = 0x01,	162	CC_MAPPED = 0x01,
…		…
237	enum {	196	enum {
238	CF_RUNNING = 0x0001, /* coroutine is running */	197	CF_RUNNING = 0x0001, /* coroutine is running */
239	CF_READY = 0x0002, /* coroutine is ready */	198	CF_READY = 0x0002, /* coroutine is ready */
240	CF_NEW = 0x0004, /* has never been switched to */	199	CF_NEW = 0x0004, /* has never been switched to */
241	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 */
242	};	202	};
243		203
244	/* 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 */
245	typedef struct	205	typedef struct
246	{	206	{
247	SV *defsv;	207	SV *defsv;
248	AV *defav;	208	AV *defav;
249	SV *errsv;	209	SV *errsv;
250	SV *irsgv;	210	SV *irsgv;
		211	HV *hinthv;
251	#define VAR(name,type) type name;	212	#define VAR(name,type) type name;
252	# include "state.h"	213	# include "state.h"
253	#undef VAR	214	#undef VAR
254	} perl_slots;	215	} perl_slots;
255		216
…		…
257		218
258	/* this is a structure representing a perl-level coroutine */	219	/* this is a structure representing a perl-level coroutine */
259	struct coro {	220	struct coro {
260	/* the C coroutine allocated to this perl coroutine, if any */	221	/* the C coroutine allocated to this perl coroutine, if any */
261	coro_cctx *cctx;	222	coro_cctx *cctx;
		223
		224	/* ready queue */
		225	struct coro *next_ready;
262		226
263	/* state data */	227	/* state data */
264	struct CoroSLF slf_frame; /* saved slf frame */	228	struct CoroSLF slf_frame; /* saved slf frame */
265	AV *mainstack;	229	AV *mainstack;
266	perl_slots *slot; /* basically the saved sp */	230	perl_slots *slot; /* basically the saved sp */
…		…
283	/* async_pool */	247	/* async_pool */
284	SV *saved_deffh;	248	SV *saved_deffh;
285	SV *invoke_cb;	249	SV *invoke_cb;
286	AV *invoke_av;	250	AV *invoke_av;
287		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
288	/* linked list */	259	/* linked list */
289	struct coro *next, *prev;	260	struct coro *next, *prev;
290	};	261	};
291		262
292	typedef struct coro *Coro__State;	263	typedef struct coro *Coro__State;
…		…
297	/* the mainr easonw e don't support windows process emulation */	268	/* the mainr easonw e don't support windows process emulation */
298	static struct CoroSLF slf_frame; /* the current slf frame */	269	static struct CoroSLF slf_frame; /* the current slf frame */
299		270
300	/** Coro ********************************************************************/	271	/** Coro ********************************************************************/
301		272
302	#define PRIO_MAX 3	273	#define CORO_PRIO_MAX 3
303	#define PRIO_HIGH 1	274	#define CORO_PRIO_HIGH 1
304	#define PRIO_NORMAL 0	275	#define CORO_PRIO_NORMAL 0
305	#define PRIO_LOW -1	276	#define CORO_PRIO_LOW -1
306	#define PRIO_IDLE -3	277	#define CORO_PRIO_IDLE -3
307	#define PRIO_MIN -4	278	#define CORO_PRIO_MIN -4
308		279
309	/* for Coro.pm */	280	/* for Coro.pm */
310	static SV *coro_current;	281	static SV *coro_current;
311	static SV *coro_readyhook;	282	static SV *coro_readyhook;
312	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 */
313	static CV *cv_coro_run, *cv_coro_terminate;	284	static CV *cv_coro_run, *cv_coro_terminate;
314	static struct coro *coro_first;	285	static struct coro *coro_first;
315	#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	}
316		307
317	/** lowlevel stuff **********************************************************/	308	/** lowlevel stuff **********************************************************/
318		309
319	static SV *	310	static SV *
320	coro_get_sv (pTHX_ const char *name, int create)	311	coro_get_sv (pTHX_ const char *name, int create)
…		…
344	get_hv (name, create);	335	get_hv (name, create);
345	#endif	336	#endif
346	return get_hv (name, create);	337	return get_hv (name, create);
347	}	338	}
348		339
349	/* may croak */	340	INLINE void
350	INLINE CV *	341	coro_times_update ()
351	coro_sv_2cv (pTHX_ SV *sv)
352	{	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	{
353	HV *st;	409	HV *stash;
354	GV *gvp;	410	MAGIC *mg;
355	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;
356	}	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 */
357		438
358	static AV *	439	static AV *
359	coro_derive_padlist (pTHX_ CV *cv)	440	coro_derive_padlist (pTHX_ CV *cv)
360	{	441	{
361	AV *padlist = CvPADLIST (cv);	442	AV *padlist = CvPADLIST (cv);
…		…
369	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	450	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
370	#endif	451	#endif
371	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	452	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
372	--AvFILLp (padlist);	453	--AvFILLp (padlist);
373		454
374	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	455	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
375	av_store (newpadlist, 1, (SV *)newpad);	456	av_store (newpadlist, 1, (SV *)newpad);
376		457
377	return newpadlist;	458	return newpadlist;
378	}	459	}
379		460
380	static void	461	static void
381	free_padlist (pTHX_ AV *padlist)	462	free_padlist (pTHX_ AV *padlist)
382	{	463	{
383	/* may be during global destruction */	464	/* may be during global destruction */
384	if (SvREFCNT (padlist))	465	if (!IN_DESTRUCT)
385	{	466	{
386	I32 i = AvFILLp (padlist);	467	I32 i = AvFILLp (padlist);
387	while (i >= 0)	468
		469	while (i > 0) /* special-case index 0 */
388	{	470	{
389	SV **svp = av_fetch (padlist, i--, FALSE);	471	/* we try to be extra-careful here */
390	if (svp)	472	AV *av = (AV *)AvARRAY (padlist)[i--];
391	{	473	I32 j = AvFILLp (av);
392	SV *sv;	474
393	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	475	while (j >= 0)
		476	SvREFCNT_dec (AvARRAY (av)[j--]);
		477
		478	AvFILLp (av) = -1;
394	SvREFCNT_dec (sv);	479	SvREFCNT_dec (av);
395
396	SvREFCNT_dec (*svp);
397	}
398	}	480	}
399		481
		482	SvREFCNT_dec (AvARRAY (padlist)[0]);
		483
		484	AvFILLp (padlist) = -1;
400	SvREFCNT_dec ((SV*)padlist);	485	SvREFCNT_dec ((SV*)padlist);
401	}	486	}
402	}	487	}
403		488
404	static int	489	static int
405	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	490	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
406	{	491	{
407	AV *padlist;	492	AV *padlist;
408	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;
409		498
410	/* casting is fun. */	499	/* casting is fun. */
411	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	500	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
412	free_padlist (aTHX_ padlist);	501	free_padlist (aTHX_ padlist);
413		502
414	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	503	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
415		504
416	return 0;	505	return 0;
417	}	506	}
418
419	#define CORO_MAGIC_type_cv 26
420	#define CORO_MAGIC_type_state PERL_MAGIC_ext
421		507
422	static MGVTBL coro_cv_vtbl = {	508	static MGVTBL coro_cv_vtbl = {
423	0, 0, 0, 0,	509	0, 0, 0, 0,
424	coro_cv_free	510	coro_cv_free
425	};	511	};
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		512
470	/* the next two functions merely cache the padlists */	513	/* the next two functions merely cache the padlists */
471	static void	514	static void
472	get_padlist (pTHX_ CV *cv)	515	get_padlist (pTHX_ CV *cv)
473	{	516	{
…		…
501	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);
502		545
503	av = (AV *)mg->mg_obj;	546	av = (AV *)mg->mg_obj;
504		547
505	if (expect_false (AvFILLp (av) >= AvMAX (av)))	548	if (expect_false (AvFILLp (av) >= AvMAX (av)))
506	av_extend (av, AvMAX (av) + 1);	549	av_extend (av, AvFILLp (av) + 1);
507		550
508	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	551	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
509	}	552	}
510		553
511	/** load & save, init *******************************************************/	554	/** load & save, init *******************************************************/
		555
		556	static void
		557	on_enterleave_call (pTHX_ SV *cb);
512		558
513	static void	559	static void
514	load_perl (pTHX_ Coro__State c)	560	load_perl (pTHX_ Coro__State c)
515	{	561	{
516	perl_slots *slot = c->slot;	562	perl_slots *slot = c->slot;
517	c->slot = 0;	563	c->slot = 0;
518		564
519	PL_mainstack = c->mainstack;	565	PL_mainstack = c->mainstack;
520		566
521	GvSV (PL_defgv) = slot->defsv;	567	GvSV (PL_defgv) = slot->defsv;
522	GvAV (PL_defgv) = slot->defav;	568	GvAV (PL_defgv) = slot->defav;
523	GvSV (PL_errgv) = slot->errsv;	569	GvSV (PL_errgv) = slot->errsv;
524	GvSV (irsgv) = slot->irsgv;	570	GvSV (irsgv) = slot->irsgv;
		571	GvHV (PL_hintgv) = slot->hinthv;
525		572
526	#define VAR(name,type) PL_ ## name = slot->name;	573	#define VAR(name,type) PL_ ## name = slot->name;
527	# include "state.h"	574	# include "state.h"
528	#undef VAR	575	#undef VAR
529		576
…		…
543	PUTBACK;	590	PUTBACK;
544	}	591	}
545		592
546	slf_frame = c->slf_frame;	593	slf_frame = c->slf_frame;
547	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	}
548	}	611	}
549		612
550	static void	613	static void
551	save_perl (pTHX_ Coro__State c)	614	save_perl (pTHX_ Coro__State c)
552	{	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
553	c->except = CORO_THROW;	632	c->except = CORO_THROW;
554	c->slf_frame = slf_frame;	633	c->slf_frame = slf_frame;
555		634
556	{	635	{
557	dSP;	636	dSP;
…		…
570	{	649	{
571	while (expect_true (cxix >= 0))	650	while (expect_true (cxix >= 0))
572	{	651	{
573	PERL_CONTEXT *cx = &ccstk[cxix--];	652	PERL_CONTEXT *cx = &ccstk[cxix--];
574		653
575	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))
576	{	655	{
577	CV *cv = cx->blk_sub.cv;	656	CV *cv = cx->blk_sub.cv;
578		657
579	if (expect_true (CvDEPTH (cv)))	658	if (expect_true (CvDEPTH (cv)))
580	{	659	{
…		…
604	/* we manually unroll here, as usually 2 slots is enough */	683	/* we manually unroll here, as usually 2 slots is enough */
605	if (SLOT_COUNT >= 1) CXINC;	684	if (SLOT_COUNT >= 1) CXINC;
606	if (SLOT_COUNT >= 2) CXINC;	685	if (SLOT_COUNT >= 2) CXINC;
607	if (SLOT_COUNT >= 3) CXINC;	686	if (SLOT_COUNT >= 3) CXINC;
608	{	687	{
609	int i;	688	unsigned int i;
610	for (i = 3; i < SLOT_COUNT; ++i)	689	for (i = 3; i < SLOT_COUNT; ++i)
611	CXINC;	690	CXINC;
612	}	691	}
613	cxstack_ix -= SLOT_COUNT; /* undo allocation */	692	cxstack_ix -= SLOT_COUNT; /* undo allocation */
614		693
615	c->mainstack = PL_mainstack;	694	c->mainstack = PL_mainstack;
616		695
617	{	696	{
618	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	697	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
619		698
620	slot->defav = GvAV (PL_defgv);	699	slot->defav = GvAV (PL_defgv);
621	slot->defsv = DEFSV;	700	slot->defsv = DEFSV;
622	slot->errsv = ERRSV;	701	slot->errsv = ERRSV;
623	slot->irsgv = GvSV (irsgv);	702	slot->irsgv = GvSV (irsgv);
		703	slot->hinthv = GvHV (PL_hintgv);
624		704
625	#define VAR(name,type) slot->name = PL_ ## name;	705	#define VAR(name,type) slot->name = PL_ ## name;
626	# include "state.h"	706	# include "state.h"
627	#undef VAR	707	#undef VAR
628	}	708	}
…		…
755	#endif	835	#endif
756		836
757	/*	837	/*
758	* This overrides the default magic get method of %SIG elements.	838	* 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	839	* 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	840	* and instead of trying to save and restore the hash elements, we just provide
761	* readback here.	841	* 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	*/	842	*/
766	static int	843	static int
767	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	844	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
768	{	845	{
769	const char *s = MgPV_nolen_const (mg);	846	const char *s = MgPV_nolen_const (mg);
…		…
822	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	899	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
823		900
824	if (svp)	901	if (svp)
825	{	902	{
826	SV *old = *svp;	903	SV *old = *svp;
827	*svp = newSVsv (sv);	904	*svp = SvOK (sv) ? newSVsv (sv) : 0;
828	SvREFCNT_dec (old);	905	SvREFCNT_dec (old);
829	return 0;	906	return 0;
830	}	907	}
831	}	908	}
832		909
…		…
864		941
865	PL_runops = RUNOPS_DEFAULT;	942	PL_runops = RUNOPS_DEFAULT;
866	PL_curcop = &PL_compiling;	943	PL_curcop = &PL_compiling;
867	PL_in_eval = EVAL_NULL;	944	PL_in_eval = EVAL_NULL;
868	PL_comppad = 0;	945	PL_comppad = 0;
		946	PL_comppad_name = 0;
		947	PL_comppad_name_fill = 0;
		948	PL_comppad_name_floor = 0;
869	PL_curpm = 0;	949	PL_curpm = 0;
870	PL_curpad = 0;	950	PL_curpad = 0;
871	PL_localizing = 0;	951	PL_localizing = 0;
872	PL_dirty = 0;	952	PL_dirty = 0;
873	PL_restartop = 0;	953	PL_restartop = 0;
874	#if PERL_VERSION_ATLEAST (5,10,0)	954	#if PERL_VERSION_ATLEAST (5,10,0)
875	PL_parser = 0;	955	PL_parser = 0;
876	#endif	956	#endif
		957	PL_hints = 0;
877		958
878	/* recreate the die/warn hooks */	959	/* recreate the die/warn hooks */
879	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 );
880	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);
881		962
882	GvSV (PL_defgv) = newSV (0);	963	GvSV (PL_defgv) = newSV (0);
883	GvAV (PL_defgv) = coro->args; coro->args = 0;	964	GvAV (PL_defgv) = coro->args; coro->args = 0;
884	GvSV (PL_errgv) = newSV (0);	965	GvSV (PL_errgv) = newSV (0);
885	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;
886	PL_rs = newSVsv (GvSV (irsgv));	968	PL_rs = newSVsv (GvSV (irsgv));
887	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	969	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
888		970
889	{	971	{
890	dSP;	972	dSP;
…		…
916		998
917	PL_op = (OP *)&coro_setup_op;	999	PL_op = (OP *)&coro_setup_op;
918		1000
919	/* copy throw, in case it was set before coro_setup */	1001	/* copy throw, in case it was set before coro_setup */
920	CORO_THROW = coro->except;	1002	CORO_THROW = coro->except;
921	}
922		1003
		1004	if (expect_false (enable_times))
		1005	{
		1006	coro_times_update ();
		1007	coro_times_sub (coro);
		1008	}
		1009	}
		1010
923	static void	1011	static void
924	coro_destruct (pTHX_ struct coro *coro)	1012	coro_unwind_stacks (pTHX)
925	{	1013	{
926	if (!IN_DESTRUCT)	1014	if (!IN_DESTRUCT)
927	{	1015	{
928	/* restore all saved variables and stuff */	1016	/* restore all saved variables and stuff */
929	LEAVE_SCOPE (0);	1017	LEAVE_SCOPE (0);
…		…
937	POPSTACK_TO (PL_mainstack);	1025	POPSTACK_TO (PL_mainstack);
938		1026
939	/* unwind main stack */	1027	/* unwind main stack */
940	dounwind (-1);	1028	dounwind (-1);
941	}	1029	}
		1030	}
942		1031
943	SvREFCNT_dec (GvSV (PL_defgv));	1032	static void
944	SvREFCNT_dec (GvAV (PL_defgv));	1033	coro_destruct_perl (pTHX_ struct coro *coro)
945	SvREFCNT_dec (GvSV (PL_errgv));	1034	{
946	SvREFCNT_dec (PL_defoutgv);	1035	SV *svf [9];
947	SvREFCNT_dec (PL_rs);
948	SvREFCNT_dec (GvSV (irsgv));
949		1036
950	SvREFCNT_dec (PL_diehook);
951	SvREFCNT_dec (PL_warnhook);
952		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
953	SvREFCNT_dec (coro->saved_deffh);	1069	SvREFCNT_dec (coro->saved_deffh);
954	SvREFCNT_dec (coro->rouse_cb);	1070	SvREFCNT_dec (coro->rouse_cb);
955	SvREFCNT_dec (coro->invoke_cb);	1071	SvREFCNT_dec (coro->invoke_cb);
956	SvREFCNT_dec (coro->invoke_av);	1072	SvREFCNT_dec (coro->invoke_av);
957		1073	}
958	coro_destruct_stacks (aTHX);
959	}	1074	}
960		1075
961	INLINE void	1076	INLINE void
962	free_coro_mortal (pTHX)	1077	free_coro_mortal (pTHX)
963	{	1078	{
…		…
1160	/* 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 */
1161	PL_restartop = PL_op;	1276	PL_restartop = PL_op;
1162	perl_run (PL_curinterp);	1277	perl_run (PL_curinterp);
1163	/*	1278	/*
1164	* 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
1165	* 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.
1166	*/	1282	*/
1167		1283
1168	/*	1284	/*
1169	* 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
1170	* 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)
1171	* 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
1172	* bootstrap-time "top" top_env, as we cannot restore the "main"	1288	* bootstrap-time "top" top_env, as we cannot restore the "main"
1173	* 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.
1174	*/	1292	*/
1175	PL_top_env = main_top_env;	1293	PL_top_env = main_top_env;
1176	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 */
1177	}	1295	}
1178	}	1296	}
…		…
1255	cctx_destroy (coro_cctx *cctx)	1373	cctx_destroy (coro_cctx *cctx)
1256	{	1374	{
1257	if (!cctx)	1375	if (!cctx)
1258	return;	1376	return;
1259		1377
1260	assert (cctx != cctx_current);//D temporary	1378	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1261		1379
1262	--cctx_count;	1380	--cctx_count;
1263	coro_destroy (&cctx->cctx);	1381	coro_destroy (&cctx->cctx);
1264		1382
1265	/* coro_transfer creates new, empty cctx's */	1383	/* coro_transfer creates new, empty cctx's */
…		…
1329	/* TODO: throwing up here is considered harmful */	1447	/* TODO: throwing up here is considered harmful */
1330		1448
1331	if (expect_true (prev != next))	1449	if (expect_true (prev != next))
1332	{	1450	{
1333	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1451	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1334	croak ("Coro::State::transfer called with non-running/new 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,");
1335		1453
1336	if (expect_false (next->flags & CF_RUNNING))
1337	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1338
1339	if (expect_false (next->flags & CF_DESTROYED))	1454	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1340	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,");
1341		1456
1342	#if !PERL_VERSION_ATLEAST (5,10,0)	1457	#if !PERL_VERSION_ATLEAST (5,10,0)
1343	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1458	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1344	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,");
1345	#endif	1460	#endif
…		…
1393	))	1508	))
1394	{	1509	{
1395	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1510	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1396	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));	1511	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1397		1512
1398	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1513	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1399	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1514	/* without this the next cctx_get might destroy the running cctx while still in use */
1400	if (expect_false (CCTX_EXPIRED (cctx_current)))	1515	if (expect_false (CCTX_EXPIRED (cctx_current)))
1401	if (!next->cctx)	1516	if (expect_true (!next->cctx))
1402	next->cctx = cctx_get (aTHX);	1517	next->cctx = cctx_get (aTHX);
1403		1518
1404	cctx_put (cctx_current);	1519	cctx_put (cctx_current);
1405	assert (!prev->cctx);//D temporary
1406	}	1520	}
1407	else	1521	else
1408	prev->cctx = cctx_current;	1522	prev->cctx = cctx_current;
1409		1523
1410	++next->usecount;	1524	++next->usecount;
…		…
1434	coro_state_destroy (pTHX_ struct coro *coro)	1548	coro_state_destroy (pTHX_ struct coro *coro)
1435	{	1549	{
1436	if (coro->flags & CF_DESTROYED)	1550	if (coro->flags & CF_DESTROYED)
1437	return 0;	1551	return 0;
1438		1552
1439	if (coro->on_destroy)	1553	if (coro->on_destroy && !PL_dirty)
1440	coro->on_destroy (aTHX_ coro);	1554	coro->on_destroy (aTHX_ coro);
1441		1555
1442	coro->flags |= CF_DESTROYED;	1556	coro->flags |= CF_DESTROYED;
1443		1557
1444	if (coro->flags & CF_READY)	1558	if (coro->flags & CF_READY)
…		…
1448	--coro_nready;	1562	--coro_nready;
1449	}	1563	}
1450	else	1564	else
1451	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 */
1452		1566
1453	if (coro->mainstack && coro->mainstack != main_mainstack)	1567	if (coro->mainstack
1454	{	1568	&& coro->mainstack != main_mainstack
1455	struct coro temp;	1569	&& coro->slot
1456		1570	&& !PL_dirty)
1457	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1458
1459	save_perl (aTHX_ &temp);
1460	load_perl (aTHX_ coro);
1461
1462	coro_destruct (aTHX_ coro);	1571	coro_destruct_perl (aTHX_ coro);
1463
1464	load_perl (aTHX_ &temp);
1465
1466	coro->slot = 0;
1467	}
1468		1572
1469	cctx_destroy (coro->cctx);	1573	cctx_destroy (coro->cctx);
1470	SvREFCNT_dec (coro->startcv);	1574	SvREFCNT_dec (coro->startcv);
1471	SvREFCNT_dec (coro->args);	1575	SvREFCNT_dec (coro->args);
1472	SvREFCNT_dec (CORO_THROW);	1576	SvREFCNT_dec (CORO_THROW);
…		…
1531		1635
1532	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1636	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1533	TRANSFER (ta, 1);	1637	TRANSFER (ta, 1);
1534	}	1638	}
1535		1639
1536	/*****************************************************************************/
1537	/* gensub: simple closure generation utility */
1538
1539	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1540
1541	/* create a closure from XS, returns a code reference */
1542	/* the arg can be accessed via GENSUB_ARG from the callback */
1543	/* the callback must use dXSARGS/XSRETURN */
1544	static SV *
1545	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1546	{
1547	CV *cv = (CV *)newSV (0);
1548
1549	sv_upgrade ((SV *)cv, SVt_PVCV);
1550
1551	CvANON_on (cv);
1552	CvISXSUB_on (cv);
1553	CvXSUB (cv) = xsub;
1554	GENSUB_ARG = arg;
1555
1556	return newRV_noinc ((SV *)cv);
1557	}
1558
1559	/** Coro ********************************************************************/	1640	/** Coro ********************************************************************/
1560		1641
1561	INLINE void	1642	INLINE void
1562	coro_enq (pTHX_ struct coro *coro)	1643	coro_enq (pTHX_ struct coro *coro)
1563	{	1644	{
1564	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1645	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1565	}
1566		1646
1567	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 *
1568	coro_deq (pTHX)	1655	coro_deq (pTHX)
1569	{	1656	{
1570	int prio;	1657	int prio;
1571		1658
1572	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1659	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1573	if (AvFILLp (coro_ready [prio]) >= 0)	1660	{
1574	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	}
1575		1670
1576	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;
1577	}	1689	}
1578		1690
1579	static int	1691	static int
1580	api_ready (pTHX_ SV *coro_sv)	1692	api_ready (pTHX_ SV *coro_sv)
1581	{	1693	{
1582	struct coro *coro;
1583	SV *sv_hook;
1584	void (*xs_hook)(void);
1585
1586	if (SvROK (coro_sv))
1587	coro_sv = SvRV (coro_sv);
1588
1589	coro = SvSTATE (coro_sv);	1694	struct coro *coro = SvSTATE (coro_sv);
1590		1695
1591	if (coro->flags & CF_READY)	1696	if (coro->flags & CF_READY)
1592	return 0;	1697	return 0;
1593		1698
1594	coro->flags |= CF_READY;	1699	coro->flags |= CF_READY;
1595		1700
1596	sv_hook = coro_nready ? 0 : coro_readyhook;
1597	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1598
1599	coro_enq (aTHX_ coro);	1701	coro_enq (aTHX_ coro);
1600	++coro_nready;
1601		1702
1602	if (sv_hook)	1703	if (!coro_nready++)
1603	{	1704	if (coroapi.readyhook)
1604	dSP;	1705	coroapi.readyhook ();
1605
1606	ENTER;
1607	SAVETMPS;
1608
1609	PUSHMARK (SP);
1610	PUTBACK;
1611	call_sv (sv_hook, G_VOID | G_DISCARD);
1612
1613	FREETMPS;
1614	LEAVE;
1615	}
1616
1617	if (xs_hook)
1618	xs_hook ();
1619		1706
1620	return 1;	1707	return 1;
1621	}	1708	}
1622		1709
1623	static int	1710	static int
…		…
1646	static void	1733	static void
1647	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1734	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1648	{	1735	{
1649	for (;;)	1736	for (;;)
1650	{	1737	{
1651	SV *next_sv = coro_deq (aTHX);	1738	struct coro *next = coro_deq (aTHX);
1652		1739
1653	if (expect_true (next_sv))	1740	if (expect_true (next))
1654	{	1741	{
1655	struct coro *next = SvSTATE_hv (next_sv);
1656
1657	/* cannot transfer to destroyed coros, skip and look for next */	1742	/* cannot transfer to destroyed coros, skip and look for next */
1658	if (expect_false (next->flags & CF_DESTROYED))	1743	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1659	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 */
1660	else	1745	else
1661	{	1746	{
1662	next->flags &= ~CF_READY;	1747	next->flags &= ~CF_READY;
1663	--coro_nready;	1748	--coro_nready;
1664		1749
…		…
1667	}	1752	}
1668	}	1753	}
1669	else	1754	else
1670	{	1755	{
1671	/* nothing to schedule: call the idle handler */	1756	/* nothing to schedule: call the idle handler */
		1757	if (SvROK (sv_idle)
		1758	&& SvOBJECT (SvRV (sv_idle)))
		1759	{
		1760	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1761	api_ready (aTHX_ SvRV (sv_idle));
		1762	--coro_nready;
		1763	}
		1764	else
		1765	{
1672	dSP;	1766	dSP;
1673		1767
1674	ENTER;	1768	ENTER;
1675	SAVETMPS;	1769	SAVETMPS;
1676		1770
1677	PUSHMARK (SP);	1771	PUSHMARK (SP);
1678	PUTBACK;	1772	PUTBACK;
1679	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);	1773	call_sv (sv_idle, G_VOID | G_DISCARD);
1680		1774
1681	FREETMPS;	1775	FREETMPS;
1682	LEAVE;	1776	LEAVE;
		1777	}
1683	}	1778	}
1684	}	1779	}
1685	}	1780	}
1686		1781
1687	INLINE void	1782	INLINE void
…		…
1758	static void	1853	static void
1759	api_trace (pTHX_ SV *coro_sv, int flags)	1854	api_trace (pTHX_ SV *coro_sv, int flags)
1760	{	1855	{
1761	struct coro *coro = SvSTATE (coro_sv);	1856	struct coro *coro = SvSTATE (coro_sv);
1762		1857
		1858	if (coro->flags & CF_RUNNING)
		1859	croak ("cannot enable tracing on a running coroutine, caught");
		1860
1763	if (flags & CC_TRACE)	1861	if (flags & CC_TRACE)
1764	{	1862	{
1765	if (!coro->cctx)	1863	if (!coro->cctx)
1766	coro->cctx = cctx_new_run ();	1864	coro->cctx = cctx_new_run ();
1767	else if (!(coro->cctx->flags & CC_TRACE))	1865	else if (!(coro->cctx->flags & CC_TRACE))
1768	croak ("cannot enable tracing on coroutine with custom stack,");	1866	croak ("cannot enable tracing on coroutine with custom stack, caught");
1769		1867
1770	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1868	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1771	}	1869	}
1772	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1870	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1773	{	1871	{
…		…
1829	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 */
1830	api_ready (aTHX_ sv_manager);	1928	api_ready (aTHX_ sv_manager);
1831		1929
1832	frame->prepare = prepare_schedule;	1930	frame->prepare = prepare_schedule;
1833	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);*/
1834	}	1936	}
1835		1937
1836	/*****************************************************************************/	1938	/*****************************************************************************/
1837	/* async pool handler */	1939	/* async pool handler */
1838		1940
…		…
1916		2018
1917	static void	2019	static void
1918	coro_rouse_callback (pTHX_ CV *cv)	2020	coro_rouse_callback (pTHX_ CV *cv)
1919	{	2021	{
1920	dXSARGS;	2022	dXSARGS;
1921	SV *data = (SV *)GENSUB_ARG;	2023	SV *data = (SV *)S_GENSUB_ARG;
1922		2024
1923	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2025	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1924	{	2026	{
1925	/* first call, set args */	2027	/* first call, set args */
		2028	SV *coro = SvRV (data);
1926	AV *av = newAV ();	2029	AV *av = newAV ();
1927	SV *coro = SvRV (data);
1928		2030
1929	SvRV_set (data, (SV *)av);	2031	SvRV_set (data, (SV *)av);
1930	api_ready (aTHX_ coro);
1931	SvREFCNT_dec (coro);
1932		2032
1933	/* better take a full copy of the arguments */	2033	/* better take a full copy of the arguments */
1934	while (items--)	2034	while (items--)
1935	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);
1936	}	2039	}
1937		2040
1938	XSRETURN_EMPTY;	2041	XSRETURN_EMPTY;
1939	}	2042	}
1940		2043
…		…
1957		2060
1958	EXTEND (SP, AvFILLp (av) + 1);	2061	EXTEND (SP, AvFILLp (av) + 1);
1959	for (i = 0; i <= AvFILLp (av); ++i)	2062	for (i = 0; i <= AvFILLp (av); ++i)
1960	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2063	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1961		2064
1962	/* 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 */
1963	AvFILLp (av) = -1;	2066	AvFILLp (av) = -1;
1964	av_undef (av);	2067	av_undef (av);
1965		2068
1966	PUTBACK;	2069	PUTBACK;
1967	}	2070	}
…		…
1991	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2094	|| SvTYPE (SvRV (cb)) != SVt_PVCV
1992	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2095	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1993	croak ("Coro::rouse_wait called with illegal callback argument,");	2096	croak ("Coro::rouse_wait called with illegal callback argument,");
1994		2097
1995	{	2098	{
1996	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2099	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1997	SV *data = (SV *)GENSUB_ARG;	2100	SV *data = (SV *)S_GENSUB_ARG;
1998		2101
1999	frame->data = (void *)data;	2102	frame->data = (void *)data;
2000	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2103	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2001	frame->check = slf_check_rouse_wait;	2104	frame->check = slf_check_rouse_wait;
2002	}	2105	}
…		…
2006	coro_new_rouse_cb (pTHX)	2109	coro_new_rouse_cb (pTHX)
2007	{	2110	{
2008	HV *hv = (HV *)SvRV (coro_current);	2111	HV *hv = (HV *)SvRV (coro_current);
2009	struct coro *coro = SvSTATE_hv (hv);	2112	struct coro *coro = SvSTATE_hv (hv);
2010	SV *data = newRV_inc ((SV *)hv);	2113	SV *data = newRV_inc ((SV *)hv);
2011	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2114	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2012		2115
2013	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);
2014	SvREFCNT_dec (data); /* magicext increases the refcount */	2117	SvREFCNT_dec (data); /* magicext increases the refcount */
2015		2118
2016	SvREFCNT_dec (coro->rouse_cb);	2119	SvREFCNT_dec (coro->rouse_cb);
…		…
2257		2360
2258	PL_op->op_ppaddr = pp_slf;	2361	PL_op->op_ppaddr = pp_slf;
2259	/*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 */
2260		2363
2261	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));
2262	}	2412	}
2263		2413
2264	/*****************************************************************************/	2414	/*****************************************************************************/
2265	/* PerlIO::cede */	2415	/* PerlIO::cede */
2266		2416
…		…
2340	/* Coro::Semaphore & Coro::Signal */	2490	/* Coro::Semaphore & Coro::Signal */
2341		2491
2342	static SV *	2492	static SV *
2343	coro_waitarray_new (pTHX_ int count)	2493	coro_waitarray_new (pTHX_ int count)
2344	{	2494	{
2345	/* 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 */
2346	AV *av = newAV ();	2496	AV *av = newAV ();
2347	SV **ary;	2497	SV **ary;
2348		2498
2349	/* unfortunately, building manually saves memory */	2499	/* unfortunately, building manually saves memory */
2350	Newx (ary, 2, SV *);	2500	Newx (ary, 2, SV *);
2351	AvALLOC (av) = ary;	2501	AvALLOC (av) = ary;
		2502	#if PERL_VERSION_ATLEAST (5,10,0)
2352	/*AvARRAY (av) = ary;*/	2503	AvARRAY (av) = ary;
		2504	#else
2353	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
2354	AvMAX (av) = 1;	2509	AvMAX (av) = 1;
2355	AvFILLp (av) = 0;	2510	AvFILLp (av) = 0;
2356	ary [0] = newSViv (count);	2511	ary [0] = newSViv (count);
2357		2512
2358	return newRV_noinc ((SV *)av);	2513	return newRV_noinc ((SV *)av);
…		…
2487	{	2642	{
2488	if (items >= 2)	2643	if (items >= 2)
2489	{	2644	{
2490	/* callback form */	2645	/* callback form */
2491	AV *av = (AV *)SvRV (arg [0]);	2646	AV *av = (AV *)SvRV (arg [0]);
2492	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2647	SV *cb_cv = s_get_cv_croak (arg [1]);
2493		2648
2494	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2649	av_push (av, SvREFCNT_inc_NN (cb_cv));
2495		2650
2496	if (SvIVX (AvARRAY (av)[0]) > 0)	2651	if (SvIVX (AvARRAY (av)[0]) > 0)
2497	coro_semaphore_adjust (aTHX_ av, 0);	2652	coro_semaphore_adjust (aTHX_ av, 0);
2498		2653
2499	frame->prepare = prepare_nop;	2654	frame->prepare = prepare_nop;
…		…
2523	AvARRAY (av)[0] = AvARRAY (av)[1];	2678	AvARRAY (av)[0] = AvARRAY (av)[1];
2524	AvARRAY (av)[1] = cb;	2679	AvARRAY (av)[1] = cb;
2525		2680
2526	cb = av_shift (av);	2681	cb = av_shift (av);
2527		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	{
2528	api_ready (aTHX_ cb);	2693	api_ready (aTHX_ cb);
2529	sv_setiv (cb, 0); /* signal waiter */	2694	sv_setiv (cb, 0); /* signal waiter */
		2695	}
		2696
2530	SvREFCNT_dec (cb);	2697	SvREFCNT_dec (cb);
2531		2698
2532	--count;	2699	--count;
2533	}	2700	}
2534	}	2701	}
…		…
2543	static void	2710	static void
2544	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)
2545	{	2712	{
2546	AV *av = (AV *)SvRV (arg [0]);	2713	AV *av = (AV *)SvRV (arg [0]);
2547		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
2548	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]))
2549	{	2727	{
2550	SvIVX (AvARRAY (av)[0]) = 0;	2728	SvIVX (AvARRAY (av)[0]) = 0;
2551	frame->prepare = prepare_nop;	2729	frame->prepare = prepare_nop;
2552	frame->check = slf_check_nop;	2730	frame->check = slf_check_nop;
2553	}	2731	}
2554	else	2732	else
2555	{	2733	{
2556	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2734	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2557		2735
2558	av_push (av, waiter);	2736	av_push (av, waiter);
2559		2737
2560	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 */
2561	frame->prepare = prepare_schedule;	2739	frame->prepare = prepare_schedule;
…		…
2579		2757
2580	static void	2758	static void
2581	coro_aio_callback (pTHX_ CV *cv)	2759	coro_aio_callback (pTHX_ CV *cv)
2582	{	2760	{
2583	dXSARGS;	2761	dXSARGS;
2584	AV *state = (AV *)GENSUB_ARG;	2762	AV *state = (AV *)S_GENSUB_ARG;
2585	SV *coro = av_pop (state);	2763	SV *coro = av_pop (state);
2586	SV *data_sv = newSV (sizeof (struct io_state));	2764	SV *data_sv = newSV (sizeof (struct io_state));
2587		2765
2588	av_extend (state, items - 1);	2766	av_extend (state, items - 1);
2589		2767
…		…
2703		2881
2704	for (i = 0; i < items; ++i)	2882	for (i = 0; i < items; ++i)
2705	PUSHs (arg [i]);	2883	PUSHs (arg [i]);
2706		2884
2707	/* now push the callback closure */	2885	/* now push the callback closure */
2708	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))));
2709		2887
2710	/* now call the AIO function - we assume our request is uncancelable */	2888	/* now call the AIO function - we assume our request is uncancelable */
2711	PUTBACK;	2889	PUTBACK;
2712	call_sv ((SV *)req, G_VOID | G_DISCARD);	2890	call_sv ((SV *)req, G_VOID | G_DISCARD);
2713	}	2891	}
…		…
2800		2978
2801	if (!svp) croak ("Time::HiRes is required");	2979	if (!svp) croak ("Time::HiRes is required");
2802	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	2980	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2803		2981
2804	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));
2805	}	2986	}
2806		2987
2807	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2988	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2808	}	2989	}
2809		2990
2810	SV *	2991	SV *
2811	new (char *klass, ...)	2992	new (char *klass, ...)
2812	ALIAS:	2993	ALIAS:
…		…
2814	CODE:	2995	CODE:
2815	{	2996	{
2816	struct coro *coro;	2997	struct coro *coro;
2817	MAGIC *mg;	2998	MAGIC *mg;
2818	HV *hv;	2999	HV *hv;
2819	CV *cb;	3000	SV *cb;
2820	int i;	3001	int i;
2821		3002
2822	if (items > 1)	3003	if (items > 1)
2823	{	3004	{
2824	cb = coro_sv_2cv (aTHX_ ST (1));	3005	cb = s_get_cv_croak (ST (1));
2825		3006
2826	if (!ix)	3007	if (!ix)
2827	{	3008	{
2828	if (CvISXSUB (cb))	3009	if (CvISXSUB (cb))
2829	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");
…		…
2851	av_extend (coro->args, items - 1 + ix - 1);	3032	av_extend (coro->args, items - 1 + ix - 1);
2852		3033
2853	if (ix)	3034	if (ix)
2854	{	3035	{
2855	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));	3036	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2856	cb = cv_coro_run;	3037	cb = (SV *)cv_coro_run;
2857	}	3038	}
2858		3039
2859	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);	3040	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2860		3041
2861	for (i = 2; i < items; i++)	3042	for (i = 2; i < items; i++)
…		…
2887	SV *	3068	SV *
2888	clone (Coro::State coro)	3069	clone (Coro::State coro)
2889	CODE:	3070	CODE:
2890	{	3071	{
2891	#if CORO_CLONE	3072	#if CORO_CLONE
2892	struct coro *ncoro = coro_clone (coro);	3073	struct coro *ncoro = coro_clone (aTHX_ coro);
2893	MAGIC *mg;	3074	MAGIC *mg;
2894	/* TODO: too much duplication */	3075	/* TODO: too much duplication */
2895	ncoro->hv = newHV ();	3076	ncoro->hv = newHV ();
2896	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);
2897	mg->mg_flags |= MGf_DUP;	3078	mg->mg_flags |= MGf_DUP;
…		…
2959	eval = 1	3140	eval = 1
2960	CODE:	3141	CODE:
2961	{	3142	{
2962	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3143	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2963	{	3144	{
2964	struct coro temp;	3145	struct coro *current = SvSTATE_current;
2965		3146
2966	if (!(coro->flags & CF_RUNNING))	3147	if (current != coro)
2967	{	3148	{
2968	PUTBACK;	3149	PUTBACK;
2969	save_perl (aTHX_ &temp);	3150	save_perl (aTHX_ current);
2970	load_perl (aTHX_ coro);	3151	load_perl (aTHX_ coro);
		3152	SPAGAIN;
2971	}	3153	}
2972		3154
2973	{
2974	dSP;
2975	ENTER;
2976	SAVETMPS;
2977	PUTBACK;
2978	PUSHSTACK;	3155	PUSHSTACK;
		3156
2979	PUSHMARK (SP);	3157	PUSHMARK (SP);
		3158	PUTBACK;
2980		3159
2981	if (ix)	3160	if (ix)
2982	eval_sv (coderef, 0);	3161	eval_sv (coderef, 0);
2983	else	3162	else
2984	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3163	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2985		3164
2986	POPSTACK;	3165	POPSTACK;
2987	SPAGAIN;	3166	SPAGAIN;
2988	FREETMPS;
2989	LEAVE;
2990	PUTBACK;
2991	}
2992		3167
2993	if (!(coro->flags & CF_RUNNING))	3168	if (current != coro)
2994	{	3169	{
		3170	PUTBACK;
2995	save_perl (aTHX_ coro);	3171	save_perl (aTHX_ coro);
2996	load_perl (aTHX_ &temp);	3172	load_perl (aTHX_ current);
2997	SPAGAIN;	3173	SPAGAIN;
2998	}	3174	}
2999	}	3175	}
3000	}	3176	}
3001		3177
…		…
3005	ALIAS:	3181	ALIAS:
3006	is_ready = CF_READY	3182	is_ready = CF_READY
3007	is_running = CF_RUNNING	3183	is_running = CF_RUNNING
3008	is_new = CF_NEW	3184	is_new = CF_NEW
3009	is_destroyed = CF_DESTROYED	3185	is_destroyed = CF_DESTROYED
		3186	is_suspended = CF_SUSPENDED
3010	CODE:	3187	CODE:
3011	RETVAL = boolSV (coro->flags & ix);	3188	RETVAL = boolSV (coro->flags & ix);
3012	OUTPUT:	3189	OUTPUT:
3013	RETVAL	3190	RETVAL
3014		3191
…		…
3018	CODE:	3195	CODE:
3019	{	3196	{
3020	struct coro *current = SvSTATE_current;	3197	struct coro *current = SvSTATE_current;
3021	SV **throwp = self == current ? &CORO_THROW : &self->except;	3198	SV **throwp = self == current ? &CORO_THROW : &self->except;
3022	SvREFCNT_dec (*throwp);	3199	SvREFCNT_dec (*throwp);
		3200	SvGETMAGIC (throw);
3023	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3201	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
3024	}	3202	}
3025		3203
3026	void	3204	void
3027	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3205	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
…		…
3079	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3257	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3080		3258
3081	SV *tmp = *src; *src = *dst; *dst = tmp;	3259	SV *tmp = *src; *src = *dst; *dst = tmp;
3082	}	3260	}
3083		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	}
3084		3305
3085	MODULE = Coro::State PACKAGE = Coro	3306	MODULE = Coro::State PACKAGE = Coro
3086		3307
3087	BOOT:	3308	BOOT:
3088	{	3309	{
3089	int i;
3090
3091	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3310	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3092	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3311	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3093	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3312	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3094	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3313	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3095	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);
3096	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3315	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3097	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3316	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3098	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3317	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3318	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3099		3319
3100	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3320	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3101	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3321	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3102	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);
3103	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);
3104		3324
3105	coro_stash = gv_stashpv ("Coro", TRUE);	3325	coro_stash = gv_stashpv ("Coro", TRUE);
3106		3326
3107	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3327	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3108	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3328	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3109	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3329	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3110	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3330	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3111	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3331	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3112	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3332	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3113
3114	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3115	coro_ready[i] = newAV ();
3116		3333
3117	{	3334	{
3118	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3335	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3119		3336
3120	coroapi.schedule = api_schedule;	3337	coroapi.schedule = api_schedule;
…		…
3161	cede_notself (...)	3378	cede_notself (...)
3162	CODE:	3379	CODE:
3163	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3380	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3164		3381
3165	void	3382	void
3166	_cancel (Coro::State self)
3167	CODE:
3168	coro_state_destroy (aTHX_ self);
3169	coro_call_on_destroy (aTHX_ self);
3170
3171	void
3172	_set_current (SV *current)	3383	_set_current (SV *current)
3173	PROTOTYPE: $	3384	PROTOTYPE: $
3174	CODE:	3385	CODE:
3175	SvREFCNT_dec (SvRV (coro_current));	3386	SvREFCNT_dec (SvRV (coro_current));
3176	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));	3387	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
…		…
3178	void	3389	void
3179	_set_readyhook (SV *hook)	3390	_set_readyhook (SV *hook)
3180	PROTOTYPE: $	3391	PROTOTYPE: $
3181	CODE:	3392	CODE:
3182	SvREFCNT_dec (coro_readyhook);	3393	SvREFCNT_dec (coro_readyhook);
		3394	SvGETMAGIC (hook);
		3395	if (SvOK (hook))
		3396	{
3183	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	}
3184		3405
3185	int	3406	int
3186	prio (Coro::State coro, int newprio = 0)	3407	prio (Coro::State coro, int newprio = 0)
3187	PROTOTYPE: $;$	3408	PROTOTYPE: $;$
3188	ALIAS:	3409	ALIAS:
…		…
3194	if (items > 1)	3415	if (items > 1)
3195	{	3416	{
3196	if (ix)	3417	if (ix)
3197	newprio = coro->prio - newprio;	3418	newprio = coro->prio - newprio;
3198		3419
3199	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3420	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3200	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3421	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3201		3422
3202	coro->prio = newprio;	3423	coro->prio = newprio;
3203	}	3424	}
3204	}	3425	}
3205	OUTPUT:	3426	OUTPUT:
…		…
3218	PROTOTYPE:	3439	PROTOTYPE:
3219	CODE:	3440	CODE:
3220	RETVAL = coro_nready;	3441	RETVAL = coro_nready;
3221	OUTPUT:	3442	OUTPUT:
3222	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;
3223		3456
3224	void	3457	void
3225	_pool_handler (...)	3458	_pool_handler (...)
3226	CODE:	3459	CODE:
3227	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3460	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
…		…
3282	rouse_wait (...)	3515	rouse_wait (...)
3283	PROTOTYPE: ;$	3516	PROTOTYPE: ;$
3284	PPCODE:	3517	PPCODE:
3285	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3518	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3286		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
3287		3545
3288	MODULE = Coro::State PACKAGE = PerlIO::cede	3546	MODULE = Coro::State PACKAGE = PerlIO::cede
3289		3547
3290	BOOT:	3548	BOOT:
3291	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3549	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3294	MODULE = Coro::State PACKAGE = Coro::Semaphore	3552	MODULE = Coro::State PACKAGE = Coro::Semaphore
3295		3553
3296	SV *	3554	SV *
3297	new (SV *klass, SV *count = 0)	3555	new (SV *klass, SV *count = 0)
3298	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
3299	RETVAL = sv_bless (	3568	RETVAL = sv_bless (
3300	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3569	coro_waitarray_new (aTHX_ semcnt),
3301	GvSTASH (CvGV (cv))	3570	GvSTASH (CvGV (cv))
3302	);	3571	);
		3572	}
3303	OUTPUT:	3573	OUTPUT:
3304	RETVAL	3574	RETVAL
3305		3575
3306	# helper for Coro::Channel	3576	# helper for Coro::Channel and others
3307	SV *	3577	SV *
3308	_alloc (int count)	3578	_alloc (int count)
3309	CODE:	3579	CODE:
3310	RETVAL = coro_waitarray_new (aTHX_ count);	3580	RETVAL = coro_waitarray_new (aTHX_ count);
3311	OUTPUT:	3581	OUTPUT:
…		…
3369	for (i = 1; i <= wcount; ++i)	3639	for (i = 1; i <= wcount; ++i)
3370	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3640	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3371	}	3641	}
3372	}	3642	}
3373		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
3374	MODULE = Coro::State PACKAGE = Coro::Signal	3660	MODULE = Coro::State PACKAGE = Coro::Signal
3375		3661
3376	SV *	3662	SV *
3377	new (SV *klass)	3663	new (SV *klass)
3378	CODE:	3664	CODE:
…		…
3449		3735
3450	void	3736	void
3451	_register (char *target, char *proto, SV *req)	3737	_register (char *target, char *proto, SV *req)
3452	CODE:	3738	CODE:
3453	{	3739	{
3454	CV *req_cv = coro_sv_2cv (aTHX_ req);	3740	SV *req_cv = s_get_cv_croak (req);
3455	/* newXSproto doesn't return the CV on 5.8 */	3741	/* newXSproto doesn't return the CV on 5.8 */
3456	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3742	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3457	sv_setpv ((SV *)slf_cv, proto);	3743	sv_setpv ((SV *)slf_cv, proto);
3458	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);
3459	}	3745	}
3460		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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