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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.330 by root, Wed Nov 26 09:29:06 2008 UTC vs.
Revision 1.378 by root, Sat Dec 12 01:30:26 2009 UTC

		1	#define NDEBUG 1
		2
1	#include "libcoro/coro.c"	3	#include "libcoro/coro.c"
2		4
3	#define PERL_NO_GET_CONTEXT	5	#define PERL_NO_GET_CONTEXT
4	#define PERL_EXT	6	#define PERL_EXT
5		7
6	#include "EXTERN.h"	8	#include "EXTERN.h"
7	#include "perl.h"	9	#include "perl.h"
8	#include "XSUB.h"	10	#include "XSUB.h"
9	#include "perliol.h"	11	#include "perliol.h"
10		12
11	#include "patchlevel.h"	13	#include "schmorp.h"
12		14
13	#include <stdio.h>	15	#include <stdio.h>
14	#include <errno.h>	16	#include <errno.h>
15	#include <assert.h>	17	#include <assert.h>
		18
		19	#ifndef SVs_PADSTALE
		20	# define SVs_PADSTALE 0
		21	#endif
16		22
17	#ifdef WIN32	23	#ifdef WIN32
18	# undef setjmp	24	# undef setjmp
19	# undef longjmp	25	# undef longjmp
20	# undef _exit	26	# undef _exit
…		…
51	#endif	57	#endif
52		58
53	/* the maximum number of idle cctx that will be pooled */	59	/* the maximum number of idle cctx that will be pooled */
54	static int cctx_max_idle = 4;	60	static int cctx_max_idle = 4;
55		61
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	62	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116	# undef CORO_STACKGUARD	63	# undef CORO_STACKGUARD
117	#endif	64	#endif
118		65
119	#ifndef CORO_STACKGUARD	66	#ifndef CORO_STACKGUARD
…		…
133	#else	80	#else
134	# define dSTACKLEVEL volatile void *stacklevel	81	# define dSTACKLEVEL volatile void *stacklevel
135	# define STACKLEVEL ((void *)&stacklevel)	82	# define STACKLEVEL ((void *)&stacklevel)
136	#endif	83	#endif
137		84
138	#define IN_DESTRUCT (PL_main_cv == Nullcv)	85	#define IN_DESTRUCT PL_dirty
139		86
140	#if __GNUC__ >= 3	87	#if __GNUC__ >= 3
141	# define attribute(x) __attribute__(x)	88	# define attribute(x) __attribute__(x)
142	# define expect(expr,value) __builtin_expect ((expr),(value))	89	# define expect(expr,value) __builtin_expect ((expr), (value))
143	# define INLINE static inline	90	# define INLINE static inline
144	#else	91	#else
145	# define attribute(x)	92	# define attribute(x)
146	# define expect(expr,value) (expr)	93	# define expect(expr,value) (expr)
147	# define INLINE static	94	# define INLINE static
…		…
159	# if CORO_PTHREAD	106	# if CORO_PTHREAD
160	static void *coro_thx;	107	static void *coro_thx;
161	# endif	108	# endif
162	#endif	109	#endif
163		110
		111	#ifdef __linux
		112	# include <time.h> /* for timespec */
		113	# include <syscall.h> /* for SYS_* */
		114	# ifdef SYS_clock_gettime
		115	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		116	# define CORO_CLOCK_MONOTONIC 1
		117	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
		118	# endif
		119	#endif
		120
164	static double (*nvtime)(); /* so why doesn't it take void? */	121	static double (*nvtime)(); /* so why doesn't it take void? */
		122	static void (*u2time)(pTHX_ UV ret[2]);
165		123
166	/* we hijack an hopefully unused CV flag for our purposes */	124	/* we hijack an hopefully unused CV flag for our purposes */
167	#define CVf_SLF 0x4000	125	#define CVf_SLF 0x4000
168	static OP *pp_slf (pTHX);	126	static OP *pp_slf (pTHX);
169		127
…		…
190	static SV *sv_pool_size;	148	static SV *sv_pool_size;
191	static SV *sv_async_pool_idle; /* description string */	149	static SV *sv_async_pool_idle; /* description string */
192	static AV *av_async_pool; /* idle pool */	150	static AV *av_async_pool; /* idle pool */
193	static SV *sv_Coro; /* class string */	151	static SV *sv_Coro; /* class string */
194	static CV *cv_pool_handler;	152	static CV *cv_pool_handler;
195	static CV *cv_coro_state_new;
196		153
197	/* Coro::AnyEvent */	154	/* Coro::AnyEvent */
198	static SV *sv_activity;	155	static SV *sv_activity;
		156
		157	/* enable processtime/realtime profiling */
		158	static char enable_times;
		159	typedef U32 coro_ts[2];
		160	static coro_ts time_real, time_cpu;
		161	static char times_valid;
199		162
200	static struct coro_cctx *cctx_first;	163	static struct coro_cctx *cctx_first;
201	static int cctx_count, cctx_idle;	164	static int cctx_count, cctx_idle;
202		165
203	enum {	166	enum {
…		…
238	enum {	201	enum {
239	CF_RUNNING = 0x0001, /* coroutine is running */	202	CF_RUNNING = 0x0001, /* coroutine is running */
240	CF_READY = 0x0002, /* coroutine is ready */	203	CF_READY = 0x0002, /* coroutine is ready */
241	CF_NEW = 0x0004, /* has never been switched to */	204	CF_NEW = 0x0004, /* has never been switched to */
242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	205	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		206	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
243	};	207	};
244		208
245	/* the structure where most of the perl state is stored, overlaid on the cxstack */	209	/* the structure where most of the perl state is stored, overlaid on the cxstack */
246	typedef struct	210	typedef struct
247	{	211	{
…		…
260	/* this is a structure representing a perl-level coroutine */	224	/* this is a structure representing a perl-level coroutine */
261	struct coro {	225	struct coro {
262	/* the C coroutine allocated to this perl coroutine, if any */	226	/* the C coroutine allocated to this perl coroutine, if any */
263	coro_cctx *cctx;	227	coro_cctx *cctx;
264		228
		229	/* ready queue */
		230	struct coro *next_ready;
		231
265	/* state data */	232	/* state data */
266	struct CoroSLF slf_frame; /* saved slf frame */	233	struct CoroSLF slf_frame; /* saved slf frame */
267	AV *mainstack;	234	AV *mainstack;
268	perl_slots *slot; /* basically the saved sp */	235	perl_slots *slot; /* basically the saved sp */
269		236
…		…
285	/* async_pool */	252	/* async_pool */
286	SV *saved_deffh;	253	SV *saved_deffh;
287	SV *invoke_cb;	254	SV *invoke_cb;
288	AV *invoke_av;	255	AV *invoke_av;
289		256
		257	/* on_enter/on_leave */
		258	AV *on_enter;
		259	AV *on_leave;
		260
		261	/* swap_sv */
		262	AV *swap_sv;
		263
		264	/* times */
		265	coro_ts t_cpu, t_real;
		266
290	/* linked list */	267	/* linked list */
291	struct coro *next, *prev;	268	struct coro *next, *prev;
292	};	269	};
293		270
294	typedef struct coro *Coro__State;	271	typedef struct coro *Coro__State;
…		…
299	/* the mainr easonw e don't support windows process emulation */	276	/* the mainr easonw e don't support windows process emulation */
300	static struct CoroSLF slf_frame; /* the current slf frame */	277	static struct CoroSLF slf_frame; /* the current slf frame */
301		278
302	/** Coro ********************************************************************/	279	/** Coro ********************************************************************/
303		280
304	#define PRIO_MAX 3	281	#define CORO_PRIO_MAX 3
305	#define PRIO_HIGH 1	282	#define CORO_PRIO_HIGH 1
306	#define PRIO_NORMAL 0	283	#define CORO_PRIO_NORMAL 0
307	#define PRIO_LOW -1	284	#define CORO_PRIO_LOW -1
308	#define PRIO_IDLE -3	285	#define CORO_PRIO_IDLE -3
309	#define PRIO_MIN -4	286	#define CORO_PRIO_MIN -4
310		287
311	/* for Coro.pm */	288	/* for Coro.pm */
312	static SV *coro_current;	289	static SV *coro_current;
313	static SV *coro_readyhook;	290	static SV *coro_readyhook;
314	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	291	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
315	static CV *cv_coro_run, *cv_coro_terminate;	292	static CV *cv_coro_run, *cv_coro_terminate;
316	static struct coro *coro_first;	293	static struct coro *coro_first;
317	#define coro_nready coroapi.nready	294	#define coro_nready coroapi.nready
		295
		296	/** Coro::Select ************************************************************/
		297
		298	static OP *(*coro_old_pp_sselect) (pTHX);
		299	static SV *coro_select_select;
		300
		301	/* horrible hack, but if it works... */
		302	static OP *
		303	coro_pp_sselect (pTHX)
		304	{
		305	dSP;
		306	PUSHMARK (SP - 4); /* fake argument list */
		307	XPUSHs (coro_select_select);
		308	PUTBACK;
		309
		310	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
		311	PL_op->op_flags |= OPf_STACKED;
		312	PL_op->op_private = 0;
		313	return PL_ppaddr [OP_ENTERSUB](aTHX);
		314	}
318		315
319	/** lowlevel stuff **********************************************************/	316	/** lowlevel stuff **********************************************************/
320		317
321	static SV *	318	static SV *
322	coro_get_sv (pTHX_ const char *name, int create)	319	coro_get_sv (pTHX_ const char *name, int create)
…		…
346	get_hv (name, create);	343	get_hv (name, create);
347	#endif	344	#endif
348	return get_hv (name, create);	345	return get_hv (name, create);
349	}	346	}
350		347
351	/* may croak */	348	INLINE void
352	INLINE CV *	349	coro_times_update ()
353	coro_sv_2cv (pTHX_ SV *sv)
354	{	350	{
		351	#ifdef coro_clock_gettime
		352	struct timespec ts;
		353
		354	ts.tv_sec = ts.tv_nsec = 0;
		355	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		356	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
		357
		358	ts.tv_sec = ts.tv_nsec = 0;
		359	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		360	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		361	#else
		362	dTHX;
		363	UV tv[2];
		364
		365	u2time (aTHX_ tv);
		366	time_real [0] = tv [0];
		367	time_real [1] = tv [1] * 1000;
		368	#endif
		369	}
		370
		371	INLINE void
		372	coro_times_add (struct coro *c)
		373	{
		374	c->t_real [1] += time_real [1];
		375	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		376	c->t_real [0] += time_real [0];
		377
		378	c->t_cpu [1] += time_cpu [1];
		379	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		380	c->t_cpu [0] += time_cpu [0];
		381	}
		382
		383	INLINE void
		384	coro_times_sub (struct coro *c)
		385	{
		386	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		387	c->t_real [1] -= time_real [1];
		388	c->t_real [0] -= time_real [0];
		389
		390	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		391	c->t_cpu [1] -= time_cpu [1];
		392	c->t_cpu [0] -= time_cpu [0];
		393	}
		394
		395	/*****************************************************************************/
		396	/* magic glue */
		397
		398	#define CORO_MAGIC_type_cv 26
		399	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		400
		401	#define CORO_MAGIC_NN(sv, type) \
		402	(expect_true (SvMAGIC (sv)->mg_type == type) \
		403	? SvMAGIC (sv) \
		404	: mg_find (sv, type))
		405
		406	#define CORO_MAGIC(sv, type) \
		407	(expect_true (SvMAGIC (sv)) \
		408	? CORO_MAGIC_NN (sv, type) \
		409	: 0)
		410
		411	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		412	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		413
		414	INLINE struct coro *
		415	SvSTATE_ (pTHX_ SV *coro)
		416	{
355	HV *st;	417	HV *stash;
356	GV *gvp;	418	MAGIC *mg;
357	return sv_2cv (sv, &st, &gvp, 0);	419
		420	if (SvROK (coro))
		421	coro = SvRV (coro);
		422
		423	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		424	croak ("Coro::State object required");
		425
		426	stash = SvSTASH (coro);
		427	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		428	{
		429	/* very slow, but rare, check */
		430	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		431	croak ("Coro::State object required");
		432	}
		433
		434	mg = CORO_MAGIC_state (coro);
		435	return (struct coro *)mg->mg_ptr;
358	}	436	}
		437
		438	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		439
		440	/* faster than SvSTATE, but expects a coroutine hv */
		441	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		442	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		443
		444	/*****************************************************************************/
		445	/* padlist management and caching */
359		446
360	static AV *	447	static AV *
361	coro_derive_padlist (pTHX_ CV *cv)	448	coro_derive_padlist (pTHX_ CV *cv)
362	{	449	{
363	AV *padlist = CvPADLIST (cv);	450	AV *padlist = CvPADLIST (cv);
…		…
371	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	458	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
372	#endif	459	#endif
373	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	460	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
374	--AvFILLp (padlist);	461	--AvFILLp (padlist);
375		462
376	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	463	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
377	av_store (newpadlist, 1, (SV *)newpad);	464	av_store (newpadlist, 1, (SV *)newpad);
378		465
379	return newpadlist;	466	return newpadlist;
380	}	467	}
381		468
382	static void	469	static void
383	free_padlist (pTHX_ AV *padlist)	470	free_padlist (pTHX_ AV *padlist)
384	{	471	{
385	/* may be during global destruction */	472	/* may be during global destruction */
386	if (SvREFCNT (padlist))	473	if (!IN_DESTRUCT)
387	{	474	{
388	I32 i = AvFILLp (padlist);	475	I32 i = AvFILLp (padlist);
389	while (i >= 0)	476
		477	while (i > 0) /* special-case index 0 */
390	{	478	{
		479	/* we try to be extra-careful here */
391	SV **svp = AvARRAY (padlist)[i--];	480	AV *av = (AV *)AvARRAY (padlist)[i--];
392	if (svp)	481	I32 j = AvFILLp (av);
393	{	482
394	AvREAL_on (*svp);	483	while (j >= 0)
395	av_undef (*svp);	484	SvREFCNT_dec (AvARRAY (av)[j--]);
		485
		486	AvFILLp (av) = -1;
396	SvREFCNT_dec (*svp);	487	SvREFCNT_dec (av);
397	}
398	}	488	}
399		489
		490	SvREFCNT_dec (AvARRAY (padlist)[0]);
		491
		492	AvFILLp (padlist) = -1;
400	SvREFCNT_dec ((SV*)padlist);	493	SvREFCNT_dec ((SV*)padlist);
401	}	494	}
402	}	495	}
403		496
404	static int	497	static int
405	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	498	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
406	{	499	{
407	AV *padlist;	500	AV *padlist;
408	AV *av = (AV *)mg->mg_obj;	501	AV *av = (AV *)mg->mg_obj;
		502
		503	/* perl manages to free our internal AV and _then_ call us */
		504	if (IN_DESTRUCT)
		505	return 0;
409		506
410	/* casting is fun. */	507	/* casting is fun. */
411	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	508	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
412	free_padlist (aTHX_ padlist);	509	free_padlist (aTHX_ padlist);
413		510
414	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	511	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
415		512
416	return 0;	513	return 0;
417	}	514	}
418
419	#define CORO_MAGIC_type_cv 26
420	#define CORO_MAGIC_type_state PERL_MAGIC_ext
421		515
422	static MGVTBL coro_cv_vtbl = {	516	static MGVTBL coro_cv_vtbl = {
423	0, 0, 0, 0,	517	0, 0, 0, 0,
424	coro_cv_free	518	coro_cv_free
425	};	519	};
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		520
470	/* the next two functions merely cache the padlists */	521	/* the next two functions merely cache the padlists */
471	static void	522	static void
472	get_padlist (pTHX_ CV *cv)	523	get_padlist (pTHX_ CV *cv)
473	{	524	{
…		…
508	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	559	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
509	}	560	}
510		561
511	/** load & save, init *******************************************************/	562	/** load & save, init *******************************************************/
512		563
		564	/* swap sv heads, at least logically */
		565	static void
		566	swap_svs (pTHX_ Coro__State c)
		567	{
		568	int i;
		569
		570	for (i = 0; i <= AvFILLp (c->swap_sv); )
		571	{
		572	SV *a = AvARRAY (c->swap_sv)[i++];
		573	SV *b = AvARRAY (c->swap_sv)[i++];
		574
		575	const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
		576	SV tmp;
		577
		578	/* swap sv_any */
		579	SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
		580
		581	/* swap sv_flags */
		582	SvFLAGS (&tmp) = SvFLAGS (a);
		583	SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
		584	SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
		585
		586	#if PERL_VERSION_ATLEAST (5,10,0)
		587	/* perl 5.10 complicates this _quite_ a bit, but it also is
		588	* is much faster, so no quarrels here. alternatively, we could
		589	* sv_upgrade to avoid this.
		590	*/
		591	{
		592	/* swap sv_u */
		593	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
		594
		595	/* if SvANY points to the head, we need to adjust the pointers,
		596	* as the pointer for a still points to b, and maybe vice versa.
		597	*/
		598	#define svany_in_head(type) \
		599	(((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
		600
		601	if (svany_in_head (SvTYPE (a)))
		602	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
		603
		604	if (svany_in_head (SvTYPE (b)))
		605	SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
		606	}
		607	#endif
		608	}
		609	}
		610
		611	#define SWAP_SVS(coro) \
		612	if (expect_false ((coro)->swap_sv)) \
		613	swap_svs (aTHX_ (coro))
		614
		615	static void
		616	on_enterleave_call (pTHX_ SV *cb);
		617
513	static void	618	static void
514	load_perl (pTHX_ Coro__State c)	619	load_perl (pTHX_ Coro__State c)
515	{	620	{
516	perl_slots *slot = c->slot;	621	perl_slots *slot = c->slot;
517	c->slot = 0;	622	c->slot = 0;
…		…
544	PUTBACK;	649	PUTBACK;
545	}	650	}
546		651
547	slf_frame = c->slf_frame;	652	slf_frame = c->slf_frame;
548	CORO_THROW = c->except;	653	CORO_THROW = c->except;
		654
		655	if (expect_false (enable_times))
		656	{
		657	if (expect_false (!times_valid))
		658	coro_times_update ();
		659
		660	coro_times_sub (c);
		661	}
		662
		663	if (expect_false (c->on_enter))
		664	{
		665	int i;
		666
		667	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		668	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		669	}
		670
		671	SWAP_SVS (c);
549	}	672	}
550		673
551	static void	674	static void
552	save_perl (pTHX_ Coro__State c)	675	save_perl (pTHX_ Coro__State c)
553	{	676	{
		677	SWAP_SVS (c);
		678
		679	if (expect_false (c->on_leave))
		680	{
		681	int i;
		682
		683	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		684	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		685	}
		686
		687	times_valid = 0;
		688
		689	if (expect_false (enable_times))
		690	{
		691	coro_times_update (); times_valid = 1;
		692	coro_times_add (c);
		693	}
		694
554	c->except = CORO_THROW;	695	c->except = CORO_THROW;
555	c->slf_frame = slf_frame;	696	c->slf_frame = slf_frame;
556		697
557	{	698	{
558	dSP;	699	dSP;
…		…
571	{	712	{
572	while (expect_true (cxix >= 0))	713	while (expect_true (cxix >= 0))
573	{	714	{
574	PERL_CONTEXT *cx = &ccstk[cxix--];	715	PERL_CONTEXT *cx = &ccstk[cxix--];
575		716
576	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))	717	if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
577	{	718	{
578	CV *cv = cx->blk_sub.cv;	719	CV *cv = cx->blk_sub.cv;
579		720
580	if (expect_true (CvDEPTH (cv)))	721	if (expect_true (CvDEPTH (cv)))
581	{	722	{
…		…
605	/* we manually unroll here, as usually 2 slots is enough */	746	/* we manually unroll here, as usually 2 slots is enough */
606	if (SLOT_COUNT >= 1) CXINC;	747	if (SLOT_COUNT >= 1) CXINC;
607	if (SLOT_COUNT >= 2) CXINC;	748	if (SLOT_COUNT >= 2) CXINC;
608	if (SLOT_COUNT >= 3) CXINC;	749	if (SLOT_COUNT >= 3) CXINC;
609	{	750	{
610	int i;	751	unsigned int i;
611	for (i = 3; i < SLOT_COUNT; ++i)	752	for (i = 3; i < SLOT_COUNT; ++i)
612	CXINC;	753	CXINC;
613	}	754	}
614	cxstack_ix -= SLOT_COUNT; /* undo allocation */	755	cxstack_ix -= SLOT_COUNT; /* undo allocation */
615		756
…		…
757	#endif	898	#endif
758		899
759	/*	900	/*
760	* This overrides the default magic get method of %SIG elements.	901	* This overrides the default magic get method of %SIG elements.
761	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	902	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
762	* and instead of tryign to save and restore the hash elements, we just provide	903	* and instead of trying to save and restore the hash elements, we just provide
763	* readback here.	904	* readback here.
764	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
765	* not expecting this to actually change the hook. This is a potential problem
766	* when a schedule happens then, but we ignore this.
767	*/	905	*/
768	static int	906	static int
769	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	907	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
770	{	908	{
771	const char *s = MgPV_nolen_const (mg);	909	const char *s = MgPV_nolen_const (mg);
…		…
824	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	962	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
825		963
826	if (svp)	964	if (svp)
827	{	965	{
828	SV *old = *svp;	966	SV *old = *svp;
829	*svp = newSVsv (sv);	967	*svp = SvOK (sv) ? newSVsv (sv) : 0;
830	SvREFCNT_dec (old);	968	SvREFCNT_dec (old);
831	return 0;	969	return 0;
832	}	970	}
833	}	971	}
834		972
…		…
852	slf_check_repeat (pTHX_ struct CoroSLF *frame)	990	slf_check_repeat (pTHX_ struct CoroSLF *frame)
853	{	991	{
854	return 1;	992	return 1;
855	}	993	}
856		994
857	static UNOP coro_setup_op;	995	static UNOP init_perl_op;
858		996
859	static void NOINLINE /* noinline to keep it out of the transfer fast path */	997	static void NOINLINE /* noinline to keep it out of the transfer fast path */
860	coro_setup (pTHX_ struct coro *coro)	998	init_perl (pTHX_ struct coro *coro)
861	{	999	{
862	/*	1000	/*
863	* emulate part of the perl startup here.	1001	* emulate part of the perl startup here.
864	*/	1002	*/
865	coro_init_stacks (aTHX);	1003	coro_init_stacks (aTHX);
…		…
914	*/	1052	*/
915	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	1053	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
916	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	1054	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
917		1055
918	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	1056	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
919	coro_setup_op.op_next = PL_op;	1057	init_perl_op.op_next = PL_op;
920	coro_setup_op.op_type = OP_ENTERSUB;	1058	init_perl_op.op_type = OP_ENTERSUB;
921	coro_setup_op.op_ppaddr = pp_slf;	1059	init_perl_op.op_ppaddr = pp_slf;
922	/* no flags etc. required, as an init function won't be called */	1060	/* no flags etc. required, as an init function won't be called */
923		1061
924	PL_op = (OP *)&coro_setup_op;	1062	PL_op = (OP *)&init_perl_op;
925		1063
926	/* copy throw, in case it was set before coro_setup */	1064	/* copy throw, in case it was set before init_perl */
927	CORO_THROW = coro->except;	1065	CORO_THROW = coro->except;
928	}
929		1066
		1067	SWAP_SVS (coro);
		1068
		1069	if (expect_false (enable_times))
		1070	{
		1071	coro_times_update ();
		1072	coro_times_sub (coro);
		1073	}
		1074	}
		1075
930	static void	1076	static void
931	coro_destruct (pTHX_ struct coro *coro)	1077	coro_unwind_stacks (pTHX)
932	{	1078	{
933	if (!IN_DESTRUCT)	1079	if (!IN_DESTRUCT)
934	{	1080	{
935	/* restore all saved variables and stuff */	1081	/* restore all saved variables and stuff */
936	LEAVE_SCOPE (0);	1082	LEAVE_SCOPE (0);
…		…
944	POPSTACK_TO (PL_mainstack);	1090	POPSTACK_TO (PL_mainstack);
945		1091
946	/* unwind main stack */	1092	/* unwind main stack */
947	dounwind (-1);	1093	dounwind (-1);
948	}	1094	}
		1095	}
949		1096
950	SvREFCNT_dec (GvSV (PL_defgv));	1097	static void
951	SvREFCNT_dec (GvAV (PL_defgv));	1098	destroy_perl (pTHX_ struct coro *coro)
952	SvREFCNT_dec (GvSV (PL_errgv));	1099	{
953	SvREFCNT_dec (PL_defoutgv);	1100	SV *svf [9];
954	SvREFCNT_dec (PL_rs);
955	SvREFCNT_dec (GvSV (irsgv));
956	SvREFCNT_dec (GvHV (PL_hintgv));
957		1101
958	SvREFCNT_dec (PL_diehook);
959	SvREFCNT_dec (PL_warnhook);
960		1102	{
		1103	struct coro *current = SvSTATE_current;
		1104
		1105	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1106
		1107	save_perl (aTHX_ current);
		1108	load_perl (aTHX_ coro);
		1109
		1110	coro_unwind_stacks (aTHX);
		1111	coro_destruct_stacks (aTHX);
		1112
		1113	/* restore swapped sv's */
		1114	SWAP_SVS (coro);
		1115
		1116	// now save some sv's to be free'd later
		1117	svf [0] = GvSV (PL_defgv);
		1118	svf [1] = (SV *)GvAV (PL_defgv);
		1119	svf [2] = GvSV (PL_errgv);
		1120	svf [3] = (SV *)PL_defoutgv;
		1121	svf [4] = PL_rs;
		1122	svf [5] = GvSV (irsgv);
		1123	svf [6] = (SV *)GvHV (PL_hintgv);
		1124	svf [7] = PL_diehook;
		1125	svf [8] = PL_warnhook;
		1126	assert (9 == sizeof (svf) / sizeof (*svf));
		1127
		1128	load_perl (aTHX_ current);
		1129	}
		1130
		1131	{
		1132	unsigned int i;
		1133
		1134	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1135	SvREFCNT_dec (svf [i]);
		1136
961	SvREFCNT_dec (coro->saved_deffh);	1137	SvREFCNT_dec (coro->saved_deffh);
962	SvREFCNT_dec (coro->rouse_cb);	1138	SvREFCNT_dec (coro->rouse_cb);
963	SvREFCNT_dec (coro->invoke_cb);	1139	SvREFCNT_dec (coro->invoke_cb);
964	SvREFCNT_dec (coro->invoke_av);	1140	SvREFCNT_dec (coro->invoke_av);
965		1141	}
966	coro_destruct_stacks (aTHX);
967	}	1142	}
968		1143
969	INLINE void	1144	INLINE void
970	free_coro_mortal (pTHX)	1145	free_coro_mortal (pTHX)
971	{	1146	{
…		…
1168	/* somebody or something will hit me for both perl_run and PL_restartop */	1343	/* somebody or something will hit me for both perl_run and PL_restartop */
1169	PL_restartop = PL_op;	1344	PL_restartop = PL_op;
1170	perl_run (PL_curinterp);	1345	perl_run (PL_curinterp);
1171	/*	1346	/*
1172	* Unfortunately, there is no way to get at the return values of the	1347	* Unfortunately, there is no way to get at the return values of the
1173	* coro body here, as perl_run destroys these	1348	* coro body here, as perl_run destroys these. Likewise, we cannot catch
		1349	* runtime errors here, as this is just a random interpreter, not a thread.
1174	*/	1350	*/
1175		1351
1176	/*	1352	/*
1177	* If perl-run returns we assume exit() was being called or the coro	1353	* If perl-run returns we assume exit() was being called or the coro
1178	* fell off the end, which seems to be the only valid (non-bug)	1354	* fell off the end, which seems to be the only valid (non-bug)
…		…
1265	cctx_destroy (coro_cctx *cctx)	1441	cctx_destroy (coro_cctx *cctx)
1266	{	1442	{
1267	if (!cctx)	1443	if (!cctx)
1268	return;	1444	return;
1269		1445
1270	assert (cctx != cctx_current);//D temporary	1446	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1271		1447
1272	--cctx_count;	1448	--cctx_count;
1273	coro_destroy (&cctx->cctx);	1449	coro_destroy (&cctx->cctx);
1274		1450
1275	/* coro_transfer creates new, empty cctx's */	1451	/* coro_transfer creates new, empty cctx's */
…		…
1339	/* TODO: throwing up here is considered harmful */	1515	/* TODO: throwing up here is considered harmful */
1340		1516
1341	if (expect_true (prev != next))	1517	if (expect_true (prev != next))
1342	{	1518	{
1343	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1519	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1344	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");	1520	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1345		1521
1346	if (expect_false (next->flags & CF_RUNNING))
1347	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1348
1349	if (expect_false (next->flags & CF_DESTROYED))	1522	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1350	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1523	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1351		1524
1352	#if !PERL_VERSION_ATLEAST (5,10,0)	1525	#if !PERL_VERSION_ATLEAST (5,10,0)
1353	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1526	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1354	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1527	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1355	#endif	1528	#endif
…		…
1388	if (expect_false (next->flags & CF_NEW))	1561	if (expect_false (next->flags & CF_NEW))
1389	{	1562	{
1390	/* need to start coroutine */	1563	/* need to start coroutine */
1391	next->flags &= ~CF_NEW;	1564	next->flags &= ~CF_NEW;
1392	/* setup coroutine call */	1565	/* setup coroutine call */
1393	coro_setup (aTHX_ next);	1566	init_perl (aTHX_ next);
1394	}	1567	}
1395	else	1568	else
1396	load_perl (aTHX_ next);	1569	load_perl (aTHX_ next);
1397
1398	assert (!prev->cctx);//D temporary
1399		1570
1400	/* possibly untie and reuse the cctx */	1571	/* possibly untie and reuse the cctx */
1401	if (expect_true (	1572	if (expect_true (
1402	cctx_current->idle_sp == STACKLEVEL	1573	cctx_current->idle_sp == STACKLEVEL
1403	&& !(cctx_current->flags & CC_TRACE)	1574	&& !(cctx_current->flags & CC_TRACE)
…		…
1445	coro_state_destroy (pTHX_ struct coro *coro)	1616	coro_state_destroy (pTHX_ struct coro *coro)
1446	{	1617	{
1447	if (coro->flags & CF_DESTROYED)	1618	if (coro->flags & CF_DESTROYED)
1448	return 0;	1619	return 0;
1449		1620
1450	if (coro->on_destroy)	1621	if (coro->on_destroy && !PL_dirty)
1451	coro->on_destroy (aTHX_ coro);	1622	coro->on_destroy (aTHX_ coro);
1452		1623
1453	coro->flags |= CF_DESTROYED;	1624	coro->flags |= CF_DESTROYED;
1454		1625
1455	if (coro->flags & CF_READY)	1626	if (coro->flags & CF_READY)
…		…
1459	--coro_nready;	1630	--coro_nready;
1460	}	1631	}
1461	else	1632	else
1462	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1633	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1463		1634
1464	if (coro->mainstack && coro->mainstack != main_mainstack)	1635	if (coro->mainstack
1465	{	1636	&& coro->mainstack != main_mainstack
1466	struct coro temp;	1637	&& coro->slot
1467		1638	&& !PL_dirty)
1468	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1469
1470	save_perl (aTHX_ &temp);
1471	load_perl (aTHX_ coro);	1639	destroy_perl (aTHX_ coro);
1472		1640
1473	coro_destruct (aTHX_ coro);	1641	if (coro->next) coro->next->prev = coro->prev;
1474		1642	if (coro->prev) coro->prev->next = coro->next;
1475	load_perl (aTHX_ &temp);	1643	if (coro == coro_first) coro_first = coro->next;
1476
1477	coro->slot = 0;
1478	}
1479		1644
1480	cctx_destroy (coro->cctx);	1645	cctx_destroy (coro->cctx);
1481	SvREFCNT_dec (coro->startcv);	1646	SvREFCNT_dec (coro->startcv);
1482	SvREFCNT_dec (coro->args);	1647	SvREFCNT_dec (coro->args);
		1648	SvREFCNT_dec (coro->swap_sv);
1483	SvREFCNT_dec (CORO_THROW);	1649	SvREFCNT_dec (CORO_THROW);
1484
1485	if (coro->next) coro->next->prev = coro->prev;
1486	if (coro->prev) coro->prev->next = coro->next;
1487	if (coro == coro_first) coro_first = coro->next;
1488		1650
1489	return 1;	1651	return 1;
1490	}	1652	}
1491		1653
1492	static int	1654	static int
…		…
1542		1704
1543	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1705	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1544	TRANSFER (ta, 1);	1706	TRANSFER (ta, 1);
1545	}	1707	}
1546		1708
1547	/*****************************************************************************/
1548	/* gensub: simple closure generation utility */
1549
1550	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1551
1552	/* create a closure from XS, returns a code reference */
1553	/* the arg can be accessed via GENSUB_ARG from the callback */
1554	/* the callback must use dXSARGS/XSRETURN */
1555	static SV *
1556	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1557	{
1558	CV *cv = (CV *)newSV (0);
1559
1560	sv_upgrade ((SV *)cv, SVt_PVCV);
1561
1562	CvANON_on (cv);
1563	CvISXSUB_on (cv);
1564	CvXSUB (cv) = xsub;
1565	GENSUB_ARG = arg;
1566
1567	return newRV_noinc ((SV *)cv);
1568	}
1569
1570	/** Coro ********************************************************************/	1709	/** Coro ********************************************************************/
1571		1710
1572	INLINE void	1711	INLINE void
1573	coro_enq (pTHX_ struct coro *coro)	1712	coro_enq (pTHX_ struct coro *coro)
1574	{	1713	{
1575	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1714	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1576	}
1577		1715
1578	INLINE SV *	1716	SvREFCNT_inc_NN (coro->hv);
		1717
		1718	coro->next_ready = 0;
		1719	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1720	ready [1] = coro;
		1721	}
		1722
		1723	INLINE struct coro *
1579	coro_deq (pTHX)	1724	coro_deq (pTHX)
1580	{	1725	{
1581	int prio;	1726	int prio;
1582		1727
1583	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1728	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1584	if (AvFILLp (coro_ready [prio]) >= 0)	1729	{
1585	return av_shift (coro_ready [prio]);	1730	struct coro **ready = coro_ready [prio];
		1731
		1732	if (ready [0])
		1733	{
		1734	struct coro *coro = ready [0];
		1735	ready [0] = coro->next_ready;
		1736	return coro;
		1737	}
		1738	}
1586		1739
1587	return 0;	1740	return 0;
		1741	}
		1742
		1743	static void
		1744	invoke_sv_ready_hook_helper (void)
		1745	{
		1746	dTHX;
		1747	dSP;
		1748
		1749	ENTER;
		1750	SAVETMPS;
		1751
		1752	PUSHMARK (SP);
		1753	PUTBACK;
		1754	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1755
		1756	FREETMPS;
		1757	LEAVE;
1588	}	1758	}
1589		1759
1590	static int	1760	static int
1591	api_ready (pTHX_ SV *coro_sv)	1761	api_ready (pTHX_ SV *coro_sv)
1592	{	1762	{
1593	struct coro *coro;
1594	SV *sv_hook;
1595	void (*xs_hook)(void);
1596
1597	coro = SvSTATE (coro_sv);	1763	struct coro *coro = SvSTATE (coro_sv);
1598		1764
1599	if (coro->flags & CF_READY)	1765	if (coro->flags & CF_READY)
1600	return 0;	1766	return 0;
1601		1767
1602	coro->flags |= CF_READY;	1768	coro->flags |= CF_READY;
1603		1769
1604	sv_hook = coro_nready ? 0 : coro_readyhook;
1605	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1606
1607	coro_enq (aTHX_ coro);	1770	coro_enq (aTHX_ coro);
1608	++coro_nready;
1609		1771
1610	if (sv_hook)	1772	if (!coro_nready++)
1611	{	1773	if (coroapi.readyhook)
1612	dSP;	1774	coroapi.readyhook ();
1613
1614	ENTER;
1615	SAVETMPS;
1616
1617	PUSHMARK (SP);
1618	PUTBACK;
1619	call_sv (sv_hook, G_VOID | G_DISCARD);
1620
1621	FREETMPS;
1622	LEAVE;
1623	}
1624
1625	if (xs_hook)
1626	xs_hook ();
1627		1775
1628	return 1;	1776	return 1;
1629	}	1777	}
1630		1778
1631	static int	1779	static int
…		…
1654	static void	1802	static void
1655	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1803	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1656	{	1804	{
1657	for (;;)	1805	for (;;)
1658	{	1806	{
1659	SV *next_sv = coro_deq (aTHX);	1807	struct coro *next = coro_deq (aTHX);
1660		1808
1661	if (expect_true (next_sv))	1809	if (expect_true (next))
1662	{	1810	{
1663	struct coro *next = SvSTATE_hv (next_sv);
1664
1665	/* cannot transfer to destroyed coros, skip and look for next */	1811	/* cannot transfer to destroyed coros, skip and look for next */
1666	if (expect_false (next->flags & CF_DESTROYED))	1812	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1667	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1813	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1668	else	1814	else
1669	{	1815	{
1670	next->flags &= ~CF_READY;	1816	next->flags &= ~CF_READY;
1671	--coro_nready;	1817	--coro_nready;
1672		1818
…		…
1678	{	1824	{
1679	/* nothing to schedule: call the idle handler */	1825	/* nothing to schedule: call the idle handler */
1680	if (SvROK (sv_idle)	1826	if (SvROK (sv_idle)
1681	&& SvOBJECT (SvRV (sv_idle)))	1827	&& SvOBJECT (SvRV (sv_idle)))
1682	{	1828	{
		1829	if (SvRV (sv_idle) == SvRV (coro_current))
		1830	croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
		1831
1683	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */	1832	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1684	api_ready (aTHX_ SvRV (sv_idle));	1833	api_ready (aTHX_ SvRV (sv_idle));
1685	--coro_nready;	1834	--coro_nready;
1686	}	1835	}
1687	else	1836	else
1688	{	1837	{
		1838	/* TODO: deprecated, remove, cannot work reliably *//*D*/
1689	dSP;	1839	dSP;
1690		1840
1691	ENTER;	1841	ENTER;
1692	SAVETMPS;	1842	SAVETMPS;
1693		1843
…		…
1839	{	1989	{
1840	int i;	1990	int i;
1841	HV *hv = (HV *)SvRV (coro_current);	1991	HV *hv = (HV *)SvRV (coro_current);
1842	AV *av = newAV ();	1992	AV *av = newAV ();
1843		1993
		1994	/* items are actually not so common, so optimise for this case */
		1995	if (items)
		1996	{
1844	av_extend (av, items - 1);	1997	av_extend (av, items - 1);
		1998
1845	for (i = 0; i < items; ++i)	1999	for (i = 0; i < items; ++i)
1846	av_push (av, SvREFCNT_inc_NN (arg [i]));	2000	av_push (av, SvREFCNT_inc_NN (arg [i]));
		2001	}
1847		2002
1848	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);	2003	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1849		2004
1850	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	2005	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1851	api_ready (aTHX_ sv_manager);	2006	api_ready (aTHX_ sv_manager);
1852		2007
1853	frame->prepare = prepare_schedule;	2008	frame->prepare = prepare_schedule;
1854	frame->check = slf_check_repeat;	2009	frame->check = slf_check_repeat;
		2010
		2011	/* as a minor optimisation, we could unwind all stacks here */
		2012	/* but that puts extra pressure on pp_slf, and is not worth much */
		2013	/*coro_unwind_stacks (aTHX);*/
1855	}	2014	}
1856		2015
1857	/*****************************************************************************/	2016	/*****************************************************************************/
1858	/* async pool handler */	2017	/* async pool handler */
1859		2018
…		…
1937		2096
1938	static void	2097	static void
1939	coro_rouse_callback (pTHX_ CV *cv)	2098	coro_rouse_callback (pTHX_ CV *cv)
1940	{	2099	{
1941	dXSARGS;	2100	dXSARGS;
1942	SV *data = (SV *)GENSUB_ARG;	2101	SV *data = (SV *)S_GENSUB_ARG;
1943		2102
1944	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2103	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1945	{	2104	{
1946	/* first call, set args */	2105	/* first call, set args */
		2106	SV *coro = SvRV (data);
1947	AV *av = newAV ();	2107	AV *av = newAV ();
1948	SV *coro = SvRV (data);
1949		2108
1950	SvRV_set (data, (SV *)av);	2109	SvRV_set (data, (SV *)av);
1951	api_ready (aTHX_ coro);
1952	SvREFCNT_dec (coro);
1953		2110
1954	/* better take a full copy of the arguments */	2111	/* better take a full copy of the arguments */
1955	while (items--)	2112	while (items--)
1956	av_store (av, items, newSVsv (ST (items)));	2113	av_store (av, items, newSVsv (ST (items)));
		2114
		2115	api_ready (aTHX_ coro);
		2116	SvREFCNT_dec (coro);
1957	}	2117	}
1958		2118
1959	XSRETURN_EMPTY;	2119	XSRETURN_EMPTY;
1960	}	2120	}
1961		2121
…		…
1978		2138
1979	EXTEND (SP, AvFILLp (av) + 1);	2139	EXTEND (SP, AvFILLp (av) + 1);
1980	for (i = 0; i <= AvFILLp (av); ++i)	2140	for (i = 0; i <= AvFILLp (av); ++i)
1981	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2141	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1982		2142
1983	/* we have stolen the elements, so ste length to zero and free */	2143	/* we have stolen the elements, so set length to zero and free */
1984	AvFILLp (av) = -1;	2144	AvFILLp (av) = -1;
1985	av_undef (av);	2145	av_undef (av);
1986		2146
1987	PUTBACK;	2147	PUTBACK;
1988	}	2148	}
…		…
2012	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2172	|| SvTYPE (SvRV (cb)) != SVt_PVCV
2013	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2173	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2014	croak ("Coro::rouse_wait called with illegal callback argument,");	2174	croak ("Coro::rouse_wait called with illegal callback argument,");
2015		2175
2016	{	2176	{
2017	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2177	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2018	SV *data = (SV *)GENSUB_ARG;	2178	SV *data = (SV *)S_GENSUB_ARG;
2019		2179
2020	frame->data = (void *)data;	2180	frame->data = (void *)data;
2021	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2181	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2022	frame->check = slf_check_rouse_wait;	2182	frame->check = slf_check_rouse_wait;
2023	}	2183	}
…		…
2027	coro_new_rouse_cb (pTHX)	2187	coro_new_rouse_cb (pTHX)
2028	{	2188	{
2029	HV *hv = (HV *)SvRV (coro_current);	2189	HV *hv = (HV *)SvRV (coro_current);
2030	struct coro *coro = SvSTATE_hv (hv);	2190	struct coro *coro = SvSTATE_hv (hv);
2031	SV *data = newRV_inc ((SV *)hv);	2191	SV *data = newRV_inc ((SV *)hv);
2032	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2192	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2033		2193
2034	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2194	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2035	SvREFCNT_dec (data); /* magicext increases the refcount */	2195	SvREFCNT_dec (data); /* magicext increases the refcount */
2036		2196
2037	SvREFCNT_dec (coro->rouse_cb);	2197	SvREFCNT_dec (coro->rouse_cb);
…		…
2278		2438
2279	PL_op->op_ppaddr = pp_slf;	2439	PL_op->op_ppaddr = pp_slf;
2280	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2440	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2281		2441
2282	PL_op = (OP *)&slf_restore;	2442	PL_op = (OP *)&slf_restore;
		2443	}
		2444
		2445	/*****************************************************************************/
		2446	/* dynamic wind */
		2447
		2448	static void
		2449	on_enterleave_call (pTHX_ SV *cb)
		2450	{
		2451	dSP;
		2452
		2453	PUSHSTACK;
		2454
		2455	PUSHMARK (SP);
		2456	PUTBACK;
		2457	call_sv (cb, G_VOID | G_DISCARD);
		2458	SPAGAIN;
		2459
		2460	POPSTACK;
		2461	}
		2462
		2463	static SV *
		2464	coro_avp_pop_and_free (pTHX_ AV **avp)
		2465	{
		2466	AV *av = *avp;
		2467	SV *res = av_pop (av);
		2468
		2469	if (AvFILLp (av) < 0)
		2470	{
		2471	*avp = 0;
		2472	SvREFCNT_dec (av);
		2473	}
		2474
		2475	return res;
		2476	}
		2477
		2478	static void
		2479	coro_pop_on_enter (pTHX_ void *coro)
		2480	{
		2481	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2482	SvREFCNT_dec (cb);
		2483	}
		2484
		2485	static void
		2486	coro_pop_on_leave (pTHX_ void *coro)
		2487	{
		2488	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2489	on_enterleave_call (aTHX_ sv_2mortal (cb));
2283	}	2490	}
2284		2491
2285	/*****************************************************************************/	2492	/*****************************************************************************/
2286	/* PerlIO::cede */	2493	/* PerlIO::cede */
2287		2494
…		…
2361	/* Coro::Semaphore & Coro::Signal */	2568	/* Coro::Semaphore & Coro::Signal */
2362		2569
2363	static SV *	2570	static SV *
2364	coro_waitarray_new (pTHX_ int count)	2571	coro_waitarray_new (pTHX_ int count)
2365	{	2572	{
2366	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2573	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2367	AV *av = newAV ();	2574	AV *av = newAV ();
2368	SV **ary;	2575	SV **ary;
2369		2576
2370	/* unfortunately, building manually saves memory */	2577	/* unfortunately, building manually saves memory */
2371	Newx (ary, 2, SV *);	2578	Newx (ary, 2, SV *);
…		…
2513	{	2720	{
2514	if (items >= 2)	2721	if (items >= 2)
2515	{	2722	{
2516	/* callback form */	2723	/* callback form */
2517	AV *av = (AV *)SvRV (arg [0]);	2724	AV *av = (AV *)SvRV (arg [0]);
2518	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2725	SV *cb_cv = s_get_cv_croak (arg [1]);
2519		2726
2520	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2727	av_push (av, SvREFCNT_inc_NN (cb_cv));
2521		2728
2522	if (SvIVX (AvARRAY (av)[0]) > 0)	2729	if (SvIVX (AvARRAY (av)[0]) > 0)
2523	coro_semaphore_adjust (aTHX_ av, 0);	2730	coro_semaphore_adjust (aTHX_ av, 0);
2524		2731
2525	frame->prepare = prepare_nop;	2732	frame->prepare = prepare_nop;
…		…
2549	AvARRAY (av)[0] = AvARRAY (av)[1];	2756	AvARRAY (av)[0] = AvARRAY (av)[1];
2550	AvARRAY (av)[1] = cb;	2757	AvARRAY (av)[1] = cb;
2551		2758
2552	cb = av_shift (av);	2759	cb = av_shift (av);
2553		2760
		2761	if (SvTYPE (cb) == SVt_PVCV)
		2762	{
		2763	dSP;
		2764	PUSHMARK (SP);
		2765	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2766	PUTBACK;
		2767	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2768	}
		2769	else
		2770	{
2554	api_ready (aTHX_ cb);	2771	api_ready (aTHX_ cb);
2555	sv_setiv (cb, 0); /* signal waiter */	2772	sv_setiv (cb, 0); /* signal waiter */
		2773	}
		2774
2556	SvREFCNT_dec (cb);	2775	SvREFCNT_dec (cb);
2557		2776
2558	--count;	2777	--count;
2559	}	2778	}
2560	}	2779	}
…		…
2569	static void	2788	static void
2570	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2789	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2571	{	2790	{
2572	AV *av = (AV *)SvRV (arg [0]);	2791	AV *av = (AV *)SvRV (arg [0]);
2573		2792
		2793	if (items >= 2)
		2794	{
		2795	SV *cb_cv = s_get_cv_croak (arg [1]);
		2796	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2797
2574	if (SvIVX (AvARRAY (av)[0]))	2798	if (SvIVX (AvARRAY (av)[0]))
		2799	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
		2800
		2801	frame->prepare = prepare_nop;
		2802	frame->check = slf_check_nop;
		2803	}
		2804	else if (SvIVX (AvARRAY (av)[0]))
2575	{	2805	{
2576	SvIVX (AvARRAY (av)[0]) = 0;	2806	SvIVX (AvARRAY (av)[0]) = 0;
2577	frame->prepare = prepare_nop;	2807	frame->prepare = prepare_nop;
2578	frame->check = slf_check_nop;	2808	frame->check = slf_check_nop;
2579	}	2809	}
2580	else	2810	else
2581	{	2811	{
2582	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2812	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2583		2813
2584	av_push (av, waiter);	2814	av_push (av, waiter);
2585		2815
2586	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2816	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2587	frame->prepare = prepare_schedule;	2817	frame->prepare = prepare_schedule;
…		…
2605		2835
2606	static void	2836	static void
2607	coro_aio_callback (pTHX_ CV *cv)	2837	coro_aio_callback (pTHX_ CV *cv)
2608	{	2838	{
2609	dXSARGS;	2839	dXSARGS;
2610	AV *state = (AV *)GENSUB_ARG;	2840	AV *state = (AV *)S_GENSUB_ARG;
2611	SV *coro = av_pop (state);	2841	SV *coro = av_pop (state);
2612	SV *data_sv = newSV (sizeof (struct io_state));	2842	SV *data_sv = newSV (sizeof (struct io_state));
2613		2843
2614	av_extend (state, items - 1);	2844	av_extend (state, items - 1);
2615		2845
…		…
2729		2959
2730	for (i = 0; i < items; ++i)	2960	for (i = 0; i < items; ++i)
2731	PUSHs (arg [i]);	2961	PUSHs (arg [i]);
2732		2962
2733	/* now push the callback closure */	2963	/* now push the callback closure */
2734	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	2964	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2735		2965
2736	/* now call the AIO function - we assume our request is uncancelable */	2966	/* now call the AIO function - we assume our request is uncancelable */
2737	PUTBACK;	2967	PUTBACK;
2738	call_sv ((SV *)req, G_VOID | G_DISCARD);	2968	call_sv ((SV *)req, G_VOID | G_DISCARD);
2739	}	2969	}
…		…
2757	/*****************************************************************************/	2987	/*****************************************************************************/
2758		2988
2759	#if CORO_CLONE	2989	#if CORO_CLONE
2760	# include "clone.c"	2990	# include "clone.c"
2761	#endif	2991	#endif
		2992
		2993	/*****************************************************************************/
		2994
		2995	static SV *
		2996	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		2997	{
		2998	SV *coro_sv;
		2999	struct coro *coro;
		3000	MAGIC *mg;
		3001	HV *hv;
		3002	SV *cb;
		3003	int i;
		3004
		3005	if (argc > 0)
		3006	{
		3007	cb = s_get_cv_croak (argv [0]);
		3008
		3009	if (!is_coro)
		3010	{
		3011	if (CvISXSUB (cb))
		3012	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		3013
		3014	if (!CvROOT (cb))
		3015	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		3016	}
		3017	}
		3018
		3019	Newz (0, coro, 1, struct coro);
		3020	coro->args = newAV ();
		3021	coro->flags = CF_NEW;
		3022
		3023	if (coro_first) coro_first->prev = coro;
		3024	coro->next = coro_first;
		3025	coro_first = coro;
		3026
		3027	coro->hv = hv = newHV ();
		3028	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		3029	mg->mg_flags |= MGf_DUP;
		3030	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		3031
		3032	if (argc > 0)
		3033	{
		3034	av_extend (coro->args, argc + is_coro - 1);
		3035
		3036	if (is_coro)
		3037	{
		3038	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		3039	cb = (SV *)cv_coro_run;
		3040	}
		3041
		3042	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		3043
		3044	for (i = 1; i < argc; i++)
		3045	av_push (coro->args, newSVsv (argv [i]));
		3046	}
		3047
		3048	return coro_sv;
		3049	}
2762		3050
2763	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	3051	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2764		3052
2765	PROTOTYPES: DISABLE	3053	PROTOTYPES: DISABLE
2766		3054
…		…
2826		3114
2827	if (!svp) croak ("Time::HiRes is required");	3115	if (!svp) croak ("Time::HiRes is required");
2828	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	3116	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2829		3117
2830	nvtime = INT2PTR (double (*)(), SvIV (*svp));	3118	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		3119
		3120	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		3121	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2831	}	3122	}
2832		3123
2833	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	3124	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2834	}	3125	}
2835		3126
2836	SV *	3127	SV *
2837	new (char *klass, ...)	3128	new (SV *klass, ...)
2838	ALIAS:	3129	ALIAS:
2839	Coro::new = 1	3130	Coro::new = 1
2840	CODE:	3131	CODE:
2841	{	3132	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2842	struct coro *coro;	3133	OUTPUT:
2843	MAGIC *mg;
2844	HV *hv;
2845	CV *cb;
2846	int i;
2847
2848	if (items > 1)
2849	{
2850	cb = coro_sv_2cv (aTHX_ ST (1));
2851
2852	if (!ix)
2853	{
2854	if (CvISXSUB (cb))
2855	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2856
2857	if (!CvROOT (cb))
2858	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2859	}
2860	}
2861
2862	Newz (0, coro, 1, struct coro);
2863	coro->args = newAV ();
2864	coro->flags = CF_NEW;
2865
2866	if (coro_first) coro_first->prev = coro;
2867	coro->next = coro_first;
2868	coro_first = coro;
2869
2870	coro->hv = hv = newHV ();
2871	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2872	mg->mg_flags |= MGf_DUP;
2873	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2874
2875	if (items > 1)
2876	{
2877	av_extend (coro->args, items - 1 + ix - 1);
2878
2879	if (ix)
2880	{
2881	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2882	cb = cv_coro_run;
2883	}
2884
2885	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2886
2887	for (i = 2; i < items; i++)
2888	av_push (coro->args, newSVsv (ST (i)));
2889	}
2890	}
2891	OUTPUT:
2892	RETVAL	3134	RETVAL
2893		3135
2894	void	3136	void
2895	transfer (...)	3137	transfer (...)
2896	PROTOTYPE: $$	3138	PROTOTYPE: $$
…		…
2913	SV *	3155	SV *
2914	clone (Coro::State coro)	3156	clone (Coro::State coro)
2915	CODE:	3157	CODE:
2916	{	3158	{
2917	#if CORO_CLONE	3159	#if CORO_CLONE
2918	struct coro *ncoro = coro_clone (coro);	3160	struct coro *ncoro = coro_clone (aTHX_ coro);
2919	MAGIC *mg;	3161	MAGIC *mg;
2920	/* TODO: too much duplication */	3162	/* TODO: too much duplication */
2921	ncoro->hv = newHV ();	3163	ncoro->hv = newHV ();
2922	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);	3164	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2923	mg->mg_flags |= MGf_DUP;	3165	mg->mg_flags |= MGf_DUP;
…		…
2985	eval = 1	3227	eval = 1
2986	CODE:	3228	CODE:
2987	{	3229	{
2988	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3230	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2989	{	3231	{
2990	struct coro temp;	3232	struct coro *current = SvSTATE_current;
2991		3233
2992	if (!(coro->flags & CF_RUNNING))	3234	if (current != coro)
2993	{	3235	{
2994	PUTBACK;	3236	PUTBACK;
2995	save_perl (aTHX_ &temp);	3237	save_perl (aTHX_ current);
2996	load_perl (aTHX_ coro);	3238	load_perl (aTHX_ coro);
		3239	SPAGAIN;
2997	}	3240	}
2998		3241
2999	{
3000	dSP;
3001	ENTER;
3002	SAVETMPS;
3003	PUTBACK;
3004	PUSHSTACK;	3242	PUSHSTACK;
		3243
3005	PUSHMARK (SP);	3244	PUSHMARK (SP);
		3245	PUTBACK;
3006		3246
3007	if (ix)	3247	if (ix)
3008	eval_sv (coderef, 0);	3248	eval_sv (coderef, 0);
3009	else	3249	else
3010	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3250	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3011		3251
3012	POPSTACK;	3252	POPSTACK;
3013	SPAGAIN;	3253	SPAGAIN;
3014	FREETMPS;
3015	LEAVE;
3016	PUTBACK;
3017	}
3018		3254
3019	if (!(coro->flags & CF_RUNNING))	3255	if (current != coro)
3020	{	3256	{
		3257	PUTBACK;
3021	save_perl (aTHX_ coro);	3258	save_perl (aTHX_ coro);
3022	load_perl (aTHX_ &temp);	3259	load_perl (aTHX_ current);
3023	SPAGAIN;	3260	SPAGAIN;
3024	}	3261	}
3025	}	3262	}
3026	}	3263	}
3027		3264
…		…
3031	ALIAS:	3268	ALIAS:
3032	is_ready = CF_READY	3269	is_ready = CF_READY
3033	is_running = CF_RUNNING	3270	is_running = CF_RUNNING
3034	is_new = CF_NEW	3271	is_new = CF_NEW
3035	is_destroyed = CF_DESTROYED	3272	is_destroyed = CF_DESTROYED
		3273	is_suspended = CF_SUSPENDED
3036	CODE:	3274	CODE:
3037	RETVAL = boolSV (coro->flags & ix);	3275	RETVAL = boolSV (coro->flags & ix);
3038	OUTPUT:	3276	OUTPUT:
3039	RETVAL	3277	RETVAL
3040		3278
…		…
3044	CODE:	3282	CODE:
3045	{	3283	{
3046	struct coro *current = SvSTATE_current;	3284	struct coro *current = SvSTATE_current;
3047	SV **throwp = self == current ? &CORO_THROW : &self->except;	3285	SV **throwp = self == current ? &CORO_THROW : &self->except;
3048	SvREFCNT_dec (*throwp);	3286	SvREFCNT_dec (*throwp);
		3287	SvGETMAGIC (throw);
3049	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3288	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
3050	}	3289	}
3051		3290
3052	void	3291	void
3053	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3292	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
…		…
3105	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3344	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3106		3345
3107	SV *tmp = *src; *src = *dst; *dst = tmp;	3346	SV *tmp = *src; *src = *dst; *dst = tmp;
3108	}	3347	}
3109		3348
		3349	void
		3350	cancel (Coro::State self)
		3351	CODE:
		3352	coro_state_destroy (aTHX_ self);
		3353	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3354
		3355
		3356	SV *
		3357	enable_times (int enabled = enable_times)
		3358	CODE:
		3359	{
		3360	RETVAL = boolSV (enable_times);
		3361
		3362	if (enabled != enable_times)
		3363	{
		3364	enable_times = enabled;
		3365
		3366	coro_times_update ();
		3367	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3368	}
		3369	}
		3370	OUTPUT:
		3371	RETVAL
		3372
		3373	void
		3374	times (Coro::State self)
		3375	PPCODE:
		3376	{
		3377	struct coro *current = SvSTATE (coro_current);
		3378
		3379	if (expect_false (current == self))
		3380	{
		3381	coro_times_update ();
		3382	coro_times_add (SvSTATE (coro_current));
		3383	}
		3384
		3385	EXTEND (SP, 2);
		3386	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3387	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3388
		3389	if (expect_false (current == self))
		3390	coro_times_sub (SvSTATE (coro_current));
		3391	}
		3392
		3393	void
		3394	swap_sv (Coro::State coro, SV *sv, SV *swapsv)
		3395	CODE:
		3396	{
		3397	struct coro *current = SvSTATE_current;
		3398
		3399	if (current == coro)
		3400	SWAP_SVS (current);
		3401
		3402	if (!coro->swap_sv)
		3403	coro->swap_sv = newAV ();
		3404
		3405	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
		3406	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
		3407
		3408	if (current == coro)
		3409	SWAP_SVS (current);
		3410	}
		3411
3110		3412
3111	MODULE = Coro::State PACKAGE = Coro	3413	MODULE = Coro::State PACKAGE = Coro
3112		3414
3113	BOOT:	3415	BOOT:
3114	{	3416	{
3115	int i;
3116
3117	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3417	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3118	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3418	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3119	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3419	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3120	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3420	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3121	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3421	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3122	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3422	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3123	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3423	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3124	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3424	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3125	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);	3425	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3126		3426
3127	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3427	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3128	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3428	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3129	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3429	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3130	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3430	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3131		3431
3132	coro_stash = gv_stashpv ("Coro", TRUE);	3432	coro_stash = gv_stashpv ("Coro", TRUE);
3133		3433
3134	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3434	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3135	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3435	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3136	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3436	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3137	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3437	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3138	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3438	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3139	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3439	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3140
3141	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3142	coro_ready[i] = newAV ();
3143		3440
3144	{	3441	{
3145	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3442	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3146		3443
3147	coroapi.schedule = api_schedule;	3444	coroapi.schedule = api_schedule;
…		…
3157	sv_setiv (sv, (IV)&coroapi);	3454	sv_setiv (sv, (IV)&coroapi);
3158	SvREADONLY_on (sv);	3455	SvREADONLY_on (sv);
3159	}	3456	}
3160	}	3457	}
3161		3458
		3459	SV *
		3460	async (...)
		3461	PROTOTYPE: &@
		3462	CODE:
		3463	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3464	api_ready (aTHX_ RETVAL);
		3465	OUTPUT:
		3466	RETVAL
		3467
3162	void	3468	void
3163	terminate (...)	3469	terminate (...)
3164	CODE:	3470	CODE:
3165	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3471	CORO_EXECUTE_SLF_XS (slf_init_terminate);
3166		3472
…		…
3186		3492
3187	void	3493	void
3188	cede_notself (...)	3494	cede_notself (...)
3189	CODE:	3495	CODE:
3190	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3496	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3191
3192	void
3193	_cancel (Coro::State self)
3194	CODE:
3195	coro_state_destroy (aTHX_ self);
3196	coro_call_on_destroy (aTHX_ self);
3197		3497
3198	void	3498	void
3199	_set_current (SV *current)	3499	_set_current (SV *current)
3200	PROTOTYPE: $	3500	PROTOTYPE: $
3201	CODE:	3501	CODE:
…		…
3205	void	3505	void
3206	_set_readyhook (SV *hook)	3506	_set_readyhook (SV *hook)
3207	PROTOTYPE: $	3507	PROTOTYPE: $
3208	CODE:	3508	CODE:
3209	SvREFCNT_dec (coro_readyhook);	3509	SvREFCNT_dec (coro_readyhook);
		3510	SvGETMAGIC (hook);
		3511	if (SvOK (hook))
		3512	{
3210	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3513	coro_readyhook = newSVsv (hook);
		3514	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3515	}
		3516	else
		3517	{
		3518	coro_readyhook = 0;
		3519	CORO_READYHOOK = 0;
		3520	}
3211		3521
3212	int	3522	int
3213	prio (Coro::State coro, int newprio = 0)	3523	prio (Coro::State coro, int newprio = 0)
3214	PROTOTYPE: $;$	3524	PROTOTYPE: $;$
3215	ALIAS:	3525	ALIAS:
…		…
3221	if (items > 1)	3531	if (items > 1)
3222	{	3532	{
3223	if (ix)	3533	if (ix)
3224	newprio = coro->prio - newprio;	3534	newprio = coro->prio - newprio;
3225		3535
3226	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3536	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3227	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3537	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3228		3538
3229	coro->prio = newprio;	3539	coro->prio = newprio;
3230	}	3540	}
3231	}	3541	}
3232	OUTPUT:	3542	OUTPUT:
…		…
3247	RETVAL = coro_nready;	3557	RETVAL = coro_nready;
3248	OUTPUT:	3558	OUTPUT:
3249	RETVAL	3559	RETVAL
3250		3560
3251	void	3561	void
		3562	suspend (Coro::State self)
		3563	PROTOTYPE: $
		3564	CODE:
		3565	self->flags |= CF_SUSPENDED;
		3566
		3567	void
		3568	resume (Coro::State self)
		3569	PROTOTYPE: $
		3570	CODE:
		3571	self->flags &= ~CF_SUSPENDED;
		3572
		3573	void
3252	_pool_handler (...)	3574	_pool_handler (...)
3253	CODE:	3575	CODE:
3254	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3576	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3255		3577
3256	void	3578	void
…		…
3267	for (i = 1; i < items; ++i)	3589	for (i = 1; i < items; ++i)
3268	av_push (av, SvREFCNT_inc_NN (ST (i)));	3590	av_push (av, SvREFCNT_inc_NN (ST (i)));
3269		3591
3270	if ((SV *)hv == &PL_sv_undef)	3592	if ((SV *)hv == &PL_sv_undef)
3271	{	3593	{
3272	PUSHMARK (SP);	3594	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3273	EXTEND (SP, 2);
3274	PUSHs (sv_Coro);
3275	PUSHs ((SV *)cv_pool_handler);
3276	PUTBACK;
3277	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3278	SPAGAIN;
3279
3280	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3595	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3596	SvREFCNT_dec (sv);
3281	}	3597	}
3282		3598
3283	{	3599	{
3284	struct coro *coro = SvSTATE_hv (hv);	3600	struct coro *coro = SvSTATE_hv (hv);
3285		3601
…		…
3309	rouse_wait (...)	3625	rouse_wait (...)
3310	PROTOTYPE: ;$	3626	PROTOTYPE: ;$
3311	PPCODE:	3627	PPCODE:
3312	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3628	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3313		3629
		3630	void
		3631	on_enter (SV *block)
		3632	ALIAS:
		3633	on_leave = 1
		3634	PROTOTYPE: &
		3635	CODE:
		3636	{
		3637	struct coro *coro = SvSTATE_current;
		3638	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3639
		3640	block = s_get_cv_croak (block);
		3641
		3642	if (!*avp)
		3643	*avp = newAV ();
		3644
		3645	av_push (*avp, SvREFCNT_inc (block));
		3646
		3647	if (!ix)
		3648	on_enterleave_call (aTHX_ block);
		3649
		3650	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3651	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3652	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3653	}
		3654
3314		3655
3315	MODULE = Coro::State PACKAGE = PerlIO::cede	3656	MODULE = Coro::State PACKAGE = PerlIO::cede
3316		3657
3317	BOOT:	3658	BOOT:
3318	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3659	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3321	MODULE = Coro::State PACKAGE = Coro::Semaphore	3662	MODULE = Coro::State PACKAGE = Coro::Semaphore
3322		3663
3323	SV *	3664	SV *
3324	new (SV *klass, SV *count = 0)	3665	new (SV *klass, SV *count = 0)
3325	CODE:	3666	CODE:
		3667	{
		3668	int semcnt = 1;
		3669
		3670	if (count)
		3671	{
		3672	SvGETMAGIC (count);
		3673
		3674	if (SvOK (count))
		3675	semcnt = SvIV (count);
		3676	}
		3677
3326	RETVAL = sv_bless (	3678	RETVAL = sv_bless (
3327	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3679	coro_waitarray_new (aTHX_ semcnt),
3328	GvSTASH (CvGV (cv))	3680	GvSTASH (CvGV (cv))
3329	);	3681	);
		3682	}
3330	OUTPUT:	3683	OUTPUT:
3331	RETVAL	3684	RETVAL
3332		3685
3333	# helper for Coro::Channel	3686	# helper for Coro::Channel and others
3334	SV *	3687	SV *
3335	_alloc (int count)	3688	_alloc (int count)
3336	CODE:	3689	CODE:
3337	RETVAL = coro_waitarray_new (aTHX_ count);	3690	RETVAL = coro_waitarray_new (aTHX_ count);
3338	OUTPUT:	3691	OUTPUT:
…		…
3396	for (i = 1; i <= wcount; ++i)	3749	for (i = 1; i <= wcount; ++i)
3397	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3750	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3398	}	3751	}
3399	}	3752	}
3400		3753
		3754	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3755
		3756	void
		3757	_may_delete (SV *sem, int count, int extra_refs)
		3758	PPCODE:
		3759	{
		3760	AV *av = (AV *)SvRV (sem);
		3761
		3762	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3763	&& AvFILLp (av) == 0 /* no waiters, just count */
		3764	&& SvIV (AvARRAY (av)[0]) == count)
		3765	XSRETURN_YES;
		3766
		3767	XSRETURN_NO;
		3768	}
		3769
3401	MODULE = Coro::State PACKAGE = Coro::Signal	3770	MODULE = Coro::State PACKAGE = Coro::Signal
3402		3771
3403	SV *	3772	SV *
3404	new (SV *klass)	3773	new (SV *klass)
3405	CODE:	3774	CODE:
…		…
3476		3845
3477	void	3846	void
3478	_register (char *target, char *proto, SV *req)	3847	_register (char *target, char *proto, SV *req)
3479	CODE:	3848	CODE:
3480	{	3849	{
3481	CV *req_cv = coro_sv_2cv (aTHX_ req);	3850	SV *req_cv = s_get_cv_croak (req);
3482	/* newXSproto doesn't return the CV on 5.8 */	3851	/* newXSproto doesn't return the CV on 5.8 */
3483	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3852	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3484	sv_setpv ((SV *)slf_cv, proto);	3853	sv_setpv ((SV *)slf_cv, proto);
3485	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3854	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3486	}	3855	}
3487		3856
		3857	MODULE = Coro::State PACKAGE = Coro::Select
		3858
		3859	void
		3860	patch_pp_sselect ()
		3861	CODE:
		3862	if (!coro_old_pp_sselect)
		3863	{
		3864	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3865	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3866	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3867	}
		3868
		3869	void
		3870	unpatch_pp_sselect ()
		3871	CODE:
		3872	if (coro_old_pp_sselect)
		3873	{
		3874	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3875	coro_old_pp_sselect = 0;
		3876	}
		3877
		3878

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