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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.328 by root, Tue Nov 25 09:49:43 2008 UTC vs.
Revision 1.374 by root, Fri Oct 2 19:55:59 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	{
391	SV **svp = av_fetch (padlist, i--, FALSE);	479	/* we try to be extra-careful here */
392	if (svp)	480	AV *av = (AV *)AvARRAY (padlist)[i--];
393	{	481	I32 j = AvFILLp (av);
394	SV *sv;	482
395	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	483	while (j >= 0)
		484	SvREFCNT_dec (AvARRAY (av)[j--]);
		485
		486	AvFILLp (av) = -1;
396	SvREFCNT_dec (sv);	487	SvREFCNT_dec (av);
397
398	SvREFCNT_dec (*svp);
399	}
400	}	488	}
401		489
		490	SvREFCNT_dec (AvARRAY (padlist)[0]);
		491
		492	AvFILLp (padlist) = -1;
402	SvREFCNT_dec ((SV*)padlist);	493	SvREFCNT_dec ((SV*)padlist);
403	}	494	}
404	}	495	}
405		496
406	static int	497	static int
407	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	498	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
408	{	499	{
409	AV *padlist;	500	AV *padlist;
410	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;
411		506
412	/* casting is fun. */	507	/* casting is fun. */
413	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	508	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
414	free_padlist (aTHX_ padlist);	509	free_padlist (aTHX_ padlist);
415		510
416	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	511	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
417		512
418	return 0;	513	return 0;
419	}	514	}
420
421	#define CORO_MAGIC_type_cv 26
422	#define CORO_MAGIC_type_state PERL_MAGIC_ext
423		515
424	static MGVTBL coro_cv_vtbl = {	516	static MGVTBL coro_cv_vtbl = {
425	0, 0, 0, 0,	517	0, 0, 0, 0,
426	coro_cv_free	518	coro_cv_free
427	};	519	};
428
429	#define CORO_MAGIC_NN(sv, type) \
430	(expect_true (SvMAGIC (sv)->mg_type == type) \
431	? SvMAGIC (sv) \
432	: mg_find (sv, type))
433
434	#define CORO_MAGIC(sv, type) \
435	(expect_true (SvMAGIC (sv)) \
436	? CORO_MAGIC_NN (sv, type) \
437	: 0)
438
439	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
440	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
441
442	INLINE struct coro *
443	SvSTATE_ (pTHX_ SV *coro)
444	{
445	HV *stash;
446	MAGIC *mg;
447
448	if (SvROK (coro))
449	coro = SvRV (coro);
450
451	if (expect_false (SvTYPE (coro) != SVt_PVHV))
452	croak ("Coro::State object required");
453
454	stash = SvSTASH (coro);
455	if (expect_false (stash != coro_stash && stash != coro_state_stash))
456	{
457	/* very slow, but rare, check */
458	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
459	croak ("Coro::State object required");
460	}
461
462	mg = CORO_MAGIC_state (coro);
463	return (struct coro *)mg->mg_ptr;
464	}
465
466	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
467
468	/* faster than SvSTATE, but expects a coroutine hv */
469	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
470	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
471		520
472	/* the next two functions merely cache the padlists */	521	/* the next two functions merely cache the padlists */
473	static void	522	static void
474	get_padlist (pTHX_ CV *cv)	523	get_padlist (pTHX_ CV *cv)
475	{	524	{
…		…
503	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	552	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
504		553
505	av = (AV *)mg->mg_obj;	554	av = (AV *)mg->mg_obj;
506		555
507	if (expect_false (AvFILLp (av) >= AvMAX (av)))	556	if (expect_false (AvFILLp (av) >= AvMAX (av)))
508	av_extend (av, AvMAX (av) + 1);	557	av_extend (av, AvFILLp (av) + 1);
509		558
510	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	559	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
511	}	560	}
512		561
513	/** load & save, init *******************************************************/	562	/** load & save, init *******************************************************/
		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);
514		617
515	static void	618	static void
516	load_perl (pTHX_ Coro__State c)	619	load_perl (pTHX_ Coro__State c)
517	{	620	{
518	perl_slots *slot = c->slot;	621	perl_slots *slot = c->slot;
…		…
546	PUTBACK;	649	PUTBACK;
547	}	650	}
548		651
549	slf_frame = c->slf_frame;	652	slf_frame = c->slf_frame;
550	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);
551	}	672	}
552		673
553	static void	674	static void
554	save_perl (pTHX_ Coro__State c)	675	save_perl (pTHX_ Coro__State c)
555	{	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
556	c->except = CORO_THROW;	695	c->except = CORO_THROW;
557	c->slf_frame = slf_frame;	696	c->slf_frame = slf_frame;
558		697
559	{	698	{
560	dSP;	699	dSP;
…		…
573	{	712	{
574	while (expect_true (cxix >= 0))	713	while (expect_true (cxix >= 0))
575	{	714	{
576	PERL_CONTEXT *cx = &ccstk[cxix--];	715	PERL_CONTEXT *cx = &ccstk[cxix--];
577		716
578	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))
579	{	718	{
580	CV *cv = cx->blk_sub.cv;	719	CV *cv = cx->blk_sub.cv;
581		720
582	if (expect_true (CvDEPTH (cv)))	721	if (expect_true (CvDEPTH (cv)))
583	{	722	{
584	EXTEND (SP, 3);
585	PUSHs ((SV *)CvPADLIST (cv));	723	PUSHs ((SV *)CvPADLIST (cv));
586	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));	724	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
587	PUSHs ((SV *)cv);	725	PUSHs ((SV *)cv);
588		726
589	CvDEPTH (cv) = 0;	727	CvDEPTH (cv) = 0;
…		…
607	/* we manually unroll here, as usually 2 slots is enough */	745	/* we manually unroll here, as usually 2 slots is enough */
608	if (SLOT_COUNT >= 1) CXINC;	746	if (SLOT_COUNT >= 1) CXINC;
609	if (SLOT_COUNT >= 2) CXINC;	747	if (SLOT_COUNT >= 2) CXINC;
610	if (SLOT_COUNT >= 3) CXINC;	748	if (SLOT_COUNT >= 3) CXINC;
611	{	749	{
612	int i;	750	unsigned int i;
613	for (i = 3; i < SLOT_COUNT; ++i)	751	for (i = 3; i < SLOT_COUNT; ++i)
614	CXINC;	752	CXINC;
615	}	753	}
616	cxstack_ix -= SLOT_COUNT; /* undo allocation */	754	cxstack_ix -= SLOT_COUNT; /* undo allocation */
617		755
…		…
759	#endif	897	#endif
760		898
761	/*	899	/*
762	* This overrides the default magic get method of %SIG elements.	900	* This overrides the default magic get method of %SIG elements.
763	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	901	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
764	* and instead of tryign to save and restore the hash elements, we just provide	902	* and instead of trying to save and restore the hash elements, we just provide
765	* readback here.	903	* readback here.
766	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
767	* not expecting this to actually change the hook. This is a potential problem
768	* when a schedule happens then, but we ignore this.
769	*/	904	*/
770	static int	905	static int
771	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	906	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
772	{	907	{
773	const char *s = MgPV_nolen_const (mg);	908	const char *s = MgPV_nolen_const (mg);
…		…
826	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	961	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
827		962
828	if (svp)	963	if (svp)
829	{	964	{
830	SV *old = *svp;	965	SV *old = *svp;
831	*svp = newSVsv (sv);	966	*svp = SvOK (sv) ? newSVsv (sv) : 0;
832	SvREFCNT_dec (old);	967	SvREFCNT_dec (old);
833	return 0;	968	return 0;
834	}	969	}
835	}	970	}
836		971
…		…
854	slf_check_repeat (pTHX_ struct CoroSLF *frame)	989	slf_check_repeat (pTHX_ struct CoroSLF *frame)
855	{	990	{
856	return 1;	991	return 1;
857	}	992	}
858		993
859	static UNOP coro_setup_op;	994	static UNOP init_perl_op;
860		995
861	static void NOINLINE /* noinline to keep it out of the transfer fast path */	996	static void NOINLINE /* noinline to keep it out of the transfer fast path */
862	coro_setup (pTHX_ struct coro *coro)	997	init_perl (pTHX_ struct coro *coro)
863	{	998	{
864	/*	999	/*
865	* emulate part of the perl startup here.	1000	* emulate part of the perl startup here.
866	*/	1001	*/
867	coro_init_stacks (aTHX);	1002	coro_init_stacks (aTHX);
…		…
916	*/	1051	*/
917	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	1052	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
918	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	1053	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
919		1054
920	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	1055	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
921	coro_setup_op.op_next = PL_op;	1056	init_perl_op.op_next = PL_op;
922	coro_setup_op.op_type = OP_ENTERSUB;	1057	init_perl_op.op_type = OP_ENTERSUB;
923	coro_setup_op.op_ppaddr = pp_slf;	1058	init_perl_op.op_ppaddr = pp_slf;
924	/* no flags etc. required, as an init function won't be called */	1059	/* no flags etc. required, as an init function won't be called */
925		1060
926	PL_op = (OP *)&coro_setup_op;	1061	PL_op = (OP *)&init_perl_op;
927		1062
928	/* copy throw, in case it was set before coro_setup */	1063	/* copy throw, in case it was set before init_perl */
929	CORO_THROW = coro->except;	1064	CORO_THROW = coro->except;
930	}
931		1065
		1066	SWAP_SVS (coro);
		1067
		1068	if (expect_false (enable_times))
		1069	{
		1070	coro_times_update ();
		1071	coro_times_sub (coro);
		1072	}
		1073	}
		1074
932	static void	1075	static void
933	coro_destruct (pTHX_ struct coro *coro)	1076	coro_unwind_stacks (pTHX)
934	{	1077	{
935	if (!IN_DESTRUCT)	1078	if (!IN_DESTRUCT)
936	{	1079	{
937	/* restore all saved variables and stuff */	1080	/* restore all saved variables and stuff */
938	LEAVE_SCOPE (0);	1081	LEAVE_SCOPE (0);
…		…
946	POPSTACK_TO (PL_mainstack);	1089	POPSTACK_TO (PL_mainstack);
947		1090
948	/* unwind main stack */	1091	/* unwind main stack */
949	dounwind (-1);	1092	dounwind (-1);
950	}	1093	}
		1094	}
951		1095
952	SvREFCNT_dec (GvSV (PL_defgv));	1096	static void
953	SvREFCNT_dec (GvAV (PL_defgv));	1097	destroy_perl (pTHX_ struct coro *coro)
954	SvREFCNT_dec (GvSV (PL_errgv));	1098	{
955	SvREFCNT_dec (PL_defoutgv);	1099	SV *svf [9];
956	SvREFCNT_dec (PL_rs);
957	SvREFCNT_dec (GvSV (irsgv));
958	SvREFCNT_dec (GvHV (PL_hintgv));
959		1100
960	SvREFCNT_dec (PL_diehook);
961	SvREFCNT_dec (PL_warnhook);
962		1101	{
		1102	struct coro *current = SvSTATE_current;
		1103
		1104	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1105
		1106	save_perl (aTHX_ current);
		1107	load_perl (aTHX_ coro);
		1108
		1109	coro_unwind_stacks (aTHX);
		1110	coro_destruct_stacks (aTHX);
		1111
		1112	/* restore swapped sv's */
		1113	SWAP_SVS (coro);
		1114
		1115	// now save some sv's to be free'd later
		1116	svf [0] = GvSV (PL_defgv);
		1117	svf [1] = (SV *)GvAV (PL_defgv);
		1118	svf [2] = GvSV (PL_errgv);
		1119	svf [3] = (SV *)PL_defoutgv;
		1120	svf [4] = PL_rs;
		1121	svf [5] = GvSV (irsgv);
		1122	svf [6] = (SV *)GvHV (PL_hintgv);
		1123	svf [7] = PL_diehook;
		1124	svf [8] = PL_warnhook;
		1125	assert (9 == sizeof (svf) / sizeof (*svf));
		1126
		1127	load_perl (aTHX_ current);
		1128	}
		1129
		1130	{
		1131	unsigned int i;
		1132
		1133	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1134	SvREFCNT_dec (svf [i]);
		1135
963	SvREFCNT_dec (coro->saved_deffh);	1136	SvREFCNT_dec (coro->saved_deffh);
964	SvREFCNT_dec (coro->rouse_cb);	1137	SvREFCNT_dec (coro->rouse_cb);
965	SvREFCNT_dec (coro->invoke_cb);	1138	SvREFCNT_dec (coro->invoke_cb);
966	SvREFCNT_dec (coro->invoke_av);	1139	SvREFCNT_dec (coro->invoke_av);
967		1140	SvREFCNT_dec (coro->swap_sv);
968	coro_destruct_stacks (aTHX);	1141	}
969	}	1142	}
970		1143
971	INLINE void	1144	INLINE void
972	free_coro_mortal (pTHX)	1145	free_coro_mortal (pTHX)
973	{	1146	{
…		…
1170	/* 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 */
1171	PL_restartop = PL_op;	1344	PL_restartop = PL_op;
1172	perl_run (PL_curinterp);	1345	perl_run (PL_curinterp);
1173	/*	1346	/*
1174	* 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
1175	* 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.
1176	*/	1350	*/
1177		1351
1178	/*	1352	/*
1179	* 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
1180	* 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)
…		…
1267	cctx_destroy (coro_cctx *cctx)	1441	cctx_destroy (coro_cctx *cctx)
1268	{	1442	{
1269	if (!cctx)	1443	if (!cctx)
1270	return;	1444	return;
1271		1445
1272	assert (cctx != cctx_current);//D temporary	1446	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1273		1447
1274	--cctx_count;	1448	--cctx_count;
1275	coro_destroy (&cctx->cctx);	1449	coro_destroy (&cctx->cctx);
1276		1450
1277	/* coro_transfer creates new, empty cctx's */	1451	/* coro_transfer creates new, empty cctx's */
…		…
1341	/* TODO: throwing up here is considered harmful */	1515	/* TODO: throwing up here is considered harmful */
1342		1516
1343	if (expect_true (prev != next))	1517	if (expect_true (prev != next))
1344	{	1518	{
1345	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1519	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1346	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,");
1347		1521
1348	if (expect_false (next->flags & CF_RUNNING))
1349	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1350
1351	if (expect_false (next->flags & CF_DESTROYED))	1522	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1352	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,");
1353		1524
1354	#if !PERL_VERSION_ATLEAST (5,10,0)	1525	#if !PERL_VERSION_ATLEAST (5,10,0)
1355	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1526	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1356	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,");
1357	#endif	1528	#endif
…		…
1390	if (expect_false (next->flags & CF_NEW))	1561	if (expect_false (next->flags & CF_NEW))
1391	{	1562	{
1392	/* need to start coroutine */	1563	/* need to start coroutine */
1393	next->flags &= ~CF_NEW;	1564	next->flags &= ~CF_NEW;
1394	/* setup coroutine call */	1565	/* setup coroutine call */
1395	coro_setup (aTHX_ next);	1566	init_perl (aTHX_ next);
1396	}	1567	}
1397	else	1568	else
1398	load_perl (aTHX_ next);	1569	load_perl (aTHX_ next);
1399
1400	assert (!prev->cctx);//D temporary
1401		1570
1402	/* possibly untie and reuse the cctx */	1571	/* possibly untie and reuse the cctx */
1403	if (expect_true (	1572	if (expect_true (
1404	cctx_current->idle_sp == STACKLEVEL	1573	cctx_current->idle_sp == STACKLEVEL
1405	&& !(cctx_current->flags & CC_TRACE)	1574	&& !(cctx_current->flags & CC_TRACE)
…		…
1447	coro_state_destroy (pTHX_ struct coro *coro)	1616	coro_state_destroy (pTHX_ struct coro *coro)
1448	{	1617	{
1449	if (coro->flags & CF_DESTROYED)	1618	if (coro->flags & CF_DESTROYED)
1450	return 0;	1619	return 0;
1451		1620
1452	if (coro->on_destroy)	1621	if (coro->on_destroy && !PL_dirty)
1453	coro->on_destroy (aTHX_ coro);	1622	coro->on_destroy (aTHX_ coro);
1454		1623
1455	coro->flags |= CF_DESTROYED;	1624	coro->flags |= CF_DESTROYED;
1456		1625
1457	if (coro->flags & CF_READY)	1626	if (coro->flags & CF_READY)
…		…
1461	--coro_nready;	1630	--coro_nready;
1462	}	1631	}
1463	else	1632	else
1464	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 */
1465		1634
1466	if (coro->mainstack && coro->mainstack != main_mainstack)	1635	if (coro->mainstack
1467	{	1636	&& coro->mainstack != main_mainstack
1468	struct coro temp;	1637	&& coro->slot
1469		1638	&& !PL_dirty)
1470	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1471
1472	save_perl (aTHX_ &temp);
1473	load_perl (aTHX_ coro);	1639	destroy_perl (aTHX_ coro);
1474
1475	coro_destruct (aTHX_ coro);
1476
1477	load_perl (aTHX_ &temp);
1478
1479	coro->slot = 0;
1480	}
1481		1640
1482	cctx_destroy (coro->cctx);	1641	cctx_destroy (coro->cctx);
1483	SvREFCNT_dec (coro->startcv);	1642	SvREFCNT_dec (coro->startcv);
1484	SvREFCNT_dec (coro->args);	1643	SvREFCNT_dec (coro->args);
1485	SvREFCNT_dec (CORO_THROW);	1644	SvREFCNT_dec (CORO_THROW);
…		…
1544		1703
1545	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1704	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1546	TRANSFER (ta, 1);	1705	TRANSFER (ta, 1);
1547	}	1706	}
1548		1707
1549	/*****************************************************************************/
1550	/* gensub: simple closure generation utility */
1551
1552	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1553
1554	/* create a closure from XS, returns a code reference */
1555	/* the arg can be accessed via GENSUB_ARG from the callback */
1556	/* the callback must use dXSARGS/XSRETURN */
1557	static SV *
1558	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1559	{
1560	CV *cv = (CV *)newSV (0);
1561
1562	sv_upgrade ((SV *)cv, SVt_PVCV);
1563
1564	CvANON_on (cv);
1565	CvISXSUB_on (cv);
1566	CvXSUB (cv) = xsub;
1567	GENSUB_ARG = arg;
1568
1569	return newRV_noinc ((SV *)cv);
1570	}
1571
1572	/** Coro ********************************************************************/	1708	/** Coro ********************************************************************/
1573		1709
1574	INLINE void	1710	INLINE void
1575	coro_enq (pTHX_ struct coro *coro)	1711	coro_enq (pTHX_ struct coro *coro)
1576	{	1712	{
1577	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1713	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1578	}
1579		1714
1580	INLINE SV *	1715	SvREFCNT_inc_NN (coro->hv);
		1716
		1717	coro->next_ready = 0;
		1718	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1719	ready [1] = coro;
		1720	}
		1721
		1722	INLINE struct coro *
1581	coro_deq (pTHX)	1723	coro_deq (pTHX)
1582	{	1724	{
1583	int prio;	1725	int prio;
1584		1726
1585	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1727	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1586	if (AvFILLp (coro_ready [prio]) >= 0)	1728	{
1587	return av_shift (coro_ready [prio]);	1729	struct coro **ready = coro_ready [prio];
		1730
		1731	if (ready [0])
		1732	{
		1733	struct coro *coro = ready [0];
		1734	ready [0] = coro->next_ready;
		1735	return coro;
		1736	}
		1737	}
1588		1738
1589	return 0;	1739	return 0;
		1740	}
		1741
		1742	static void
		1743	invoke_sv_ready_hook_helper (void)
		1744	{
		1745	dTHX;
		1746	dSP;
		1747
		1748	ENTER;
		1749	SAVETMPS;
		1750
		1751	PUSHMARK (SP);
		1752	PUTBACK;
		1753	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1754
		1755	FREETMPS;
		1756	LEAVE;
1590	}	1757	}
1591		1758
1592	static int	1759	static int
1593	api_ready (pTHX_ SV *coro_sv)	1760	api_ready (pTHX_ SV *coro_sv)
1594	{	1761	{
1595	struct coro *coro;
1596	SV *sv_hook;
1597	void (*xs_hook)(void);
1598
1599	coro = SvSTATE (coro_sv);	1762	struct coro *coro = SvSTATE (coro_sv);
1600		1763
1601	if (coro->flags & CF_READY)	1764	if (coro->flags & CF_READY)
1602	return 0;	1765	return 0;
1603		1766
1604	coro->flags |= CF_READY;	1767	coro->flags |= CF_READY;
1605		1768
1606	sv_hook = coro_nready ? 0 : coro_readyhook;
1607	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1608
1609	coro_enq (aTHX_ coro);	1769	coro_enq (aTHX_ coro);
1610	++coro_nready;
1611		1770
1612	if (sv_hook)	1771	if (!coro_nready++)
1613	{	1772	if (coroapi.readyhook)
1614	dSP;	1773	coroapi.readyhook ();
1615
1616	ENTER;
1617	SAVETMPS;
1618
1619	PUSHMARK (SP);
1620	PUTBACK;
1621	call_sv (sv_hook, G_VOID | G_DISCARD);
1622
1623	FREETMPS;
1624	LEAVE;
1625	}
1626
1627	if (xs_hook)
1628	xs_hook ();
1629		1774
1630	return 1;	1775	return 1;
1631	}	1776	}
1632		1777
1633	static int	1778	static int
…		…
1656	static void	1801	static void
1657	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1802	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1658	{	1803	{
1659	for (;;)	1804	for (;;)
1660	{	1805	{
1661	SV *next_sv = coro_deq (aTHX);	1806	struct coro *next = coro_deq (aTHX);
1662		1807
1663	if (expect_true (next_sv))	1808	if (expect_true (next))
1664	{	1809	{
1665	struct coro *next = SvSTATE_hv (next_sv);
1666
1667	/* cannot transfer to destroyed coros, skip and look for next */	1810	/* cannot transfer to destroyed coros, skip and look for next */
1668	if (expect_false (next->flags & CF_DESTROYED))	1811	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1669	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1812	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1670	else	1813	else
1671	{	1814	{
1672	next->flags &= ~CF_READY;	1815	next->flags &= ~CF_READY;
1673	--coro_nready;	1816	--coro_nready;
1674		1817
…		…
1686	api_ready (aTHX_ SvRV (sv_idle));	1829	api_ready (aTHX_ SvRV (sv_idle));
1687	--coro_nready;	1830	--coro_nready;
1688	}	1831	}
1689	else	1832	else
1690	{	1833	{
		1834	/* TODO: deprecated, remove, cannot work reliably *//*D*/
1691	dSP;	1835	dSP;
1692		1836
1693	ENTER;	1837	ENTER;
1694	SAVETMPS;	1838	SAVETMPS;
1695		1839
…		…
1841	{	1985	{
1842	int i;	1986	int i;
1843	HV *hv = (HV *)SvRV (coro_current);	1987	HV *hv = (HV *)SvRV (coro_current);
1844	AV *av = newAV ();	1988	AV *av = newAV ();
1845		1989
		1990	/* items are actually not so common, so optimise for this case */
		1991	if (items)
		1992	{
1846	av_extend (av, items - 1);	1993	av_extend (av, items - 1);
		1994
1847	for (i = 0; i < items; ++i)	1995	for (i = 0; i < items; ++i)
1848	av_push (av, SvREFCNT_inc_NN (arg [i]));	1996	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1997	}
1849		1998
1850	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);	1999	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1851		2000
1852	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	2001	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1853	api_ready (aTHX_ sv_manager);	2002	api_ready (aTHX_ sv_manager);
1854		2003
1855	frame->prepare = prepare_schedule;	2004	frame->prepare = prepare_schedule;
1856	frame->check = slf_check_repeat;	2005	frame->check = slf_check_repeat;
		2006
		2007	/* as a minor optimisation, we could unwind all stacks here */
		2008	/* but that puts extra pressure on pp_slf, and is not worth much */
		2009	/*coro_unwind_stacks (aTHX);*/
1857	}	2010	}
1858		2011
1859	/*****************************************************************************/	2012	/*****************************************************************************/
1860	/* async pool handler */	2013	/* async pool handler */
1861		2014
…		…
1939		2092
1940	static void	2093	static void
1941	coro_rouse_callback (pTHX_ CV *cv)	2094	coro_rouse_callback (pTHX_ CV *cv)
1942	{	2095	{
1943	dXSARGS;	2096	dXSARGS;
1944	SV *data = (SV *)GENSUB_ARG;	2097	SV *data = (SV *)S_GENSUB_ARG;
1945		2098
1946	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2099	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1947	{	2100	{
1948	/* first call, set args */	2101	/* first call, set args */
		2102	SV *coro = SvRV (data);
1949	AV *av = newAV ();	2103	AV *av = newAV ();
1950	SV *coro = SvRV (data);
1951		2104
1952	SvRV_set (data, (SV *)av);	2105	SvRV_set (data, (SV *)av);
1953	api_ready (aTHX_ coro);
1954	SvREFCNT_dec (coro);
1955		2106
1956	/* better take a full copy of the arguments */	2107	/* better take a full copy of the arguments */
1957	while (items--)	2108	while (items--)
1958	av_store (av, items, newSVsv (ST (items)));	2109	av_store (av, items, newSVsv (ST (items)));
		2110
		2111	api_ready (aTHX_ coro);
		2112	SvREFCNT_dec (coro);
1959	}	2113	}
1960		2114
1961	XSRETURN_EMPTY;	2115	XSRETURN_EMPTY;
1962	}	2116	}
1963		2117
…		…
1980		2134
1981	EXTEND (SP, AvFILLp (av) + 1);	2135	EXTEND (SP, AvFILLp (av) + 1);
1982	for (i = 0; i <= AvFILLp (av); ++i)	2136	for (i = 0; i <= AvFILLp (av); ++i)
1983	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2137	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1984		2138
1985	/* we have stolen the elements, so ste length to zero and free */	2139	/* we have stolen the elements, so set length to zero and free */
1986	AvFILLp (av) = -1;	2140	AvFILLp (av) = -1;
1987	av_undef (av);	2141	av_undef (av);
1988		2142
1989	PUTBACK;	2143	PUTBACK;
1990	}	2144	}
…		…
2014	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2168	|| SvTYPE (SvRV (cb)) != SVt_PVCV
2015	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2169	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2016	croak ("Coro::rouse_wait called with illegal callback argument,");	2170	croak ("Coro::rouse_wait called with illegal callback argument,");
2017		2171
2018	{	2172	{
2019	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2173	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2020	SV *data = (SV *)GENSUB_ARG;	2174	SV *data = (SV *)S_GENSUB_ARG;
2021		2175
2022	frame->data = (void *)data;	2176	frame->data = (void *)data;
2023	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2177	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2024	frame->check = slf_check_rouse_wait;	2178	frame->check = slf_check_rouse_wait;
2025	}	2179	}
…		…
2029	coro_new_rouse_cb (pTHX)	2183	coro_new_rouse_cb (pTHX)
2030	{	2184	{
2031	HV *hv = (HV *)SvRV (coro_current);	2185	HV *hv = (HV *)SvRV (coro_current);
2032	struct coro *coro = SvSTATE_hv (hv);	2186	struct coro *coro = SvSTATE_hv (hv);
2033	SV *data = newRV_inc ((SV *)hv);	2187	SV *data = newRV_inc ((SV *)hv);
2034	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2188	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2035		2189
2036	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2190	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2037	SvREFCNT_dec (data); /* magicext increases the refcount */	2191	SvREFCNT_dec (data); /* magicext increases the refcount */
2038		2192
2039	SvREFCNT_dec (coro->rouse_cb);	2193	SvREFCNT_dec (coro->rouse_cb);
…		…
2280		2434
2281	PL_op->op_ppaddr = pp_slf;	2435	PL_op->op_ppaddr = pp_slf;
2282	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2436	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2283		2437
2284	PL_op = (OP *)&slf_restore;	2438	PL_op = (OP *)&slf_restore;
		2439	}
		2440
		2441	/*****************************************************************************/
		2442	/* dynamic wind */
		2443
		2444	static void
		2445	on_enterleave_call (pTHX_ SV *cb)
		2446	{
		2447	dSP;
		2448
		2449	PUSHSTACK;
		2450
		2451	PUSHMARK (SP);
		2452	PUTBACK;
		2453	call_sv (cb, G_VOID | G_DISCARD);
		2454	SPAGAIN;
		2455
		2456	POPSTACK;
		2457	}
		2458
		2459	static SV *
		2460	coro_avp_pop_and_free (pTHX_ AV **avp)
		2461	{
		2462	AV *av = *avp;
		2463	SV *res = av_pop (av);
		2464
		2465	if (AvFILLp (av) < 0)
		2466	{
		2467	*avp = 0;
		2468	SvREFCNT_dec (av);
		2469	}
		2470
		2471	return res;
		2472	}
		2473
		2474	static void
		2475	coro_pop_on_enter (pTHX_ void *coro)
		2476	{
		2477	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2478	SvREFCNT_dec (cb);
		2479	}
		2480
		2481	static void
		2482	coro_pop_on_leave (pTHX_ void *coro)
		2483	{
		2484	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2485	on_enterleave_call (aTHX_ sv_2mortal (cb));
2285	}	2486	}
2286		2487
2287	/*****************************************************************************/	2488	/*****************************************************************************/
2288	/* PerlIO::cede */	2489	/* PerlIO::cede */
2289		2490
…		…
2363	/* Coro::Semaphore & Coro::Signal */	2564	/* Coro::Semaphore & Coro::Signal */
2364		2565
2365	static SV *	2566	static SV *
2366	coro_waitarray_new (pTHX_ int count)	2567	coro_waitarray_new (pTHX_ int count)
2367	{	2568	{
2368	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2569	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2369	AV *av = newAV ();	2570	AV *av = newAV ();
2370	SV **ary;	2571	SV **ary;
2371		2572
2372	/* unfortunately, building manually saves memory */	2573	/* unfortunately, building manually saves memory */
2373	Newx (ary, 2, SV *);	2574	Newx (ary, 2, SV *);
2374	AvALLOC (av) = ary;	2575	AvALLOC (av) = ary;
		2576	#if PERL_VERSION_ATLEAST (5,10,0)
2375	/*AvARRAY (av) = ary;*/	2577	AvARRAY (av) = ary;
		2578	#else
2376	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2579	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2580	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2581	SvPVX ((SV *)av) = (char *)ary;
		2582	#endif
2377	AvMAX (av) = 1;	2583	AvMAX (av) = 1;
2378	AvFILLp (av) = 0;	2584	AvFILLp (av) = 0;
2379	ary [0] = newSViv (count);	2585	ary [0] = newSViv (count);
2380		2586
2381	return newRV_noinc ((SV *)av);	2587	return newRV_noinc ((SV *)av);
…		…
2510	{	2716	{
2511	if (items >= 2)	2717	if (items >= 2)
2512	{	2718	{
2513	/* callback form */	2719	/* callback form */
2514	AV *av = (AV *)SvRV (arg [0]);	2720	AV *av = (AV *)SvRV (arg [0]);
2515	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2721	SV *cb_cv = s_get_cv_croak (arg [1]);
2516		2722
2517	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2723	av_push (av, SvREFCNT_inc_NN (cb_cv));
2518		2724
2519	if (SvIVX (AvARRAY (av)[0]) > 0)	2725	if (SvIVX (AvARRAY (av)[0]) > 0)
2520	coro_semaphore_adjust (aTHX_ av, 0);	2726	coro_semaphore_adjust (aTHX_ av, 0);
2521		2727
2522	frame->prepare = prepare_nop;	2728	frame->prepare = prepare_nop;
…		…
2546	AvARRAY (av)[0] = AvARRAY (av)[1];	2752	AvARRAY (av)[0] = AvARRAY (av)[1];
2547	AvARRAY (av)[1] = cb;	2753	AvARRAY (av)[1] = cb;
2548		2754
2549	cb = av_shift (av);	2755	cb = av_shift (av);
2550		2756
		2757	if (SvTYPE (cb) == SVt_PVCV)
		2758	{
		2759	dSP;
		2760	PUSHMARK (SP);
		2761	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2762	PUTBACK;
		2763	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2764	}
		2765	else
		2766	{
2551	api_ready (aTHX_ cb);	2767	api_ready (aTHX_ cb);
2552	sv_setiv (cb, 0); /* signal waiter */	2768	sv_setiv (cb, 0); /* signal waiter */
		2769	}
		2770
2553	SvREFCNT_dec (cb);	2771	SvREFCNT_dec (cb);
2554		2772
2555	--count;	2773	--count;
2556	}	2774	}
2557	}	2775	}
…		…
2566	static void	2784	static void
2567	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2785	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2568	{	2786	{
2569	AV *av = (AV *)SvRV (arg [0]);	2787	AV *av = (AV *)SvRV (arg [0]);
2570		2788
		2789	if (items >= 2)
		2790	{
		2791	SV *cb_cv = s_get_cv_croak (arg [1]);
		2792	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2793
2571	if (SvIVX (AvARRAY (av)[0]))	2794	if (SvIVX (AvARRAY (av)[0]))
		2795	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
		2796
		2797	frame->prepare = prepare_nop;
		2798	frame->check = slf_check_nop;
		2799	}
		2800	else if (SvIVX (AvARRAY (av)[0]))
2572	{	2801	{
2573	SvIVX (AvARRAY (av)[0]) = 0;	2802	SvIVX (AvARRAY (av)[0]) = 0;
2574	frame->prepare = prepare_nop;	2803	frame->prepare = prepare_nop;
2575	frame->check = slf_check_nop;	2804	frame->check = slf_check_nop;
2576	}	2805	}
2577	else	2806	else
2578	{	2807	{
2579	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2808	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2580		2809
2581	av_push (av, waiter);	2810	av_push (av, waiter);
2582		2811
2583	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2812	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2584	frame->prepare = prepare_schedule;	2813	frame->prepare = prepare_schedule;
…		…
2602		2831
2603	static void	2832	static void
2604	coro_aio_callback (pTHX_ CV *cv)	2833	coro_aio_callback (pTHX_ CV *cv)
2605	{	2834	{
2606	dXSARGS;	2835	dXSARGS;
2607	AV *state = (AV *)GENSUB_ARG;	2836	AV *state = (AV *)S_GENSUB_ARG;
2608	SV *coro = av_pop (state);	2837	SV *coro = av_pop (state);
2609	SV *data_sv = newSV (sizeof (struct io_state));	2838	SV *data_sv = newSV (sizeof (struct io_state));
2610		2839
2611	av_extend (state, items - 1);	2840	av_extend (state, items - 1);
2612		2841
…		…
2726		2955
2727	for (i = 0; i < items; ++i)	2956	for (i = 0; i < items; ++i)
2728	PUSHs (arg [i]);	2957	PUSHs (arg [i]);
2729		2958
2730	/* now push the callback closure */	2959	/* now push the callback closure */
2731	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	2960	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2732		2961
2733	/* now call the AIO function - we assume our request is uncancelable */	2962	/* now call the AIO function - we assume our request is uncancelable */
2734	PUTBACK;	2963	PUTBACK;
2735	call_sv ((SV *)req, G_VOID | G_DISCARD);	2964	call_sv ((SV *)req, G_VOID | G_DISCARD);
2736	}	2965	}
…		…
2754	/*****************************************************************************/	2983	/*****************************************************************************/
2755		2984
2756	#if CORO_CLONE	2985	#if CORO_CLONE
2757	# include "clone.c"	2986	# include "clone.c"
2758	#endif	2987	#endif
		2988
		2989	/*****************************************************************************/
		2990
		2991	static SV *
		2992	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		2993	{
		2994	SV *coro_sv;
		2995	struct coro *coro;
		2996	MAGIC *mg;
		2997	HV *hv;
		2998	SV *cb;
		2999	int i;
		3000
		3001	if (argc > 0)
		3002	{
		3003	cb = s_get_cv_croak (argv [0]);
		3004
		3005	if (!is_coro)
		3006	{
		3007	if (CvISXSUB (cb))
		3008	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		3009
		3010	if (!CvROOT (cb))
		3011	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		3012	}
		3013	}
		3014
		3015	Newz (0, coro, 1, struct coro);
		3016	coro->args = newAV ();
		3017	coro->flags = CF_NEW;
		3018
		3019	if (coro_first) coro_first->prev = coro;
		3020	coro->next = coro_first;
		3021	coro_first = coro;
		3022
		3023	coro->hv = hv = newHV ();
		3024	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		3025	mg->mg_flags |= MGf_DUP;
		3026	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		3027
		3028	if (argc > 0)
		3029	{
		3030	av_extend (coro->args, argc + is_coro - 1);
		3031
		3032	if (is_coro)
		3033	{
		3034	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		3035	cb = (SV *)cv_coro_run;
		3036	}
		3037
		3038	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		3039
		3040	for (i = 1; i < argc; i++)
		3041	av_push (coro->args, newSVsv (argv [i]));
		3042	}
		3043
		3044	return coro_sv;
		3045	}
2759		3046
2760	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	3047	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2761		3048
2762	PROTOTYPES: DISABLE	3049	PROTOTYPES: DISABLE
2763		3050
…		…
2823		3110
2824	if (!svp) croak ("Time::HiRes is required");	3111	if (!svp) croak ("Time::HiRes is required");
2825	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	3112	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2826		3113
2827	nvtime = INT2PTR (double (*)(), SvIV (*svp));	3114	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		3115
		3116	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		3117	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2828	}	3118	}
2829		3119
2830	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	3120	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2831	}	3121	}
2832		3122
2833	SV *	3123	SV *
2834	new (char *klass, ...)	3124	new (SV *klass, ...)
2835	ALIAS:	3125	ALIAS:
2836	Coro::new = 1	3126	Coro::new = 1
2837	CODE:	3127	CODE:
2838	{	3128	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2839	struct coro *coro;	3129	OUTPUT:
2840	MAGIC *mg;
2841	HV *hv;
2842	CV *cb;
2843	int i;
2844
2845	if (items > 1)
2846	{
2847	cb = coro_sv_2cv (aTHX_ ST (1));
2848
2849	if (!ix)
2850	{
2851	if (CvISXSUB (cb))
2852	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2853
2854	if (!CvROOT (cb))
2855	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2856	}
2857	}
2858
2859	Newz (0, coro, 1, struct coro);
2860	coro->args = newAV ();
2861	coro->flags = CF_NEW;
2862
2863	if (coro_first) coro_first->prev = coro;
2864	coro->next = coro_first;
2865	coro_first = coro;
2866
2867	coro->hv = hv = newHV ();
2868	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2869	mg->mg_flags |= MGf_DUP;
2870	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2871
2872	if (items > 1)
2873	{
2874	av_extend (coro->args, items - 1 + ix - 1);
2875
2876	if (ix)
2877	{
2878	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2879	cb = cv_coro_run;
2880	}
2881
2882	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2883
2884	for (i = 2; i < items; i++)
2885	av_push (coro->args, newSVsv (ST (i)));
2886	}
2887	}
2888	OUTPUT:
2889	RETVAL	3130	RETVAL
2890		3131
2891	void	3132	void
2892	transfer (...)	3133	transfer (...)
2893	PROTOTYPE: $$	3134	PROTOTYPE: $$
…		…
2910	SV *	3151	SV *
2911	clone (Coro::State coro)	3152	clone (Coro::State coro)
2912	CODE:	3153	CODE:
2913	{	3154	{
2914	#if CORO_CLONE	3155	#if CORO_CLONE
2915	struct coro *ncoro = coro_clone (coro);	3156	struct coro *ncoro = coro_clone (aTHX_ coro);
2916	MAGIC *mg;	3157	MAGIC *mg;
2917	/* TODO: too much duplication */	3158	/* TODO: too much duplication */
2918	ncoro->hv = newHV ();	3159	ncoro->hv = newHV ();
2919	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);	3160	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2920	mg->mg_flags |= MGf_DUP;	3161	mg->mg_flags |= MGf_DUP;
…		…
2982	eval = 1	3223	eval = 1
2983	CODE:	3224	CODE:
2984	{	3225	{
2985	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3226	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2986	{	3227	{
2987	struct coro temp;	3228	struct coro *current = SvSTATE_current;
2988		3229
2989	if (!(coro->flags & CF_RUNNING))	3230	if (current != coro)
2990	{	3231	{
2991	PUTBACK;	3232	PUTBACK;
2992	save_perl (aTHX_ &temp);	3233	save_perl (aTHX_ current);
2993	load_perl (aTHX_ coro);	3234	load_perl (aTHX_ coro);
		3235	SPAGAIN;
2994	}	3236	}
2995		3237
2996	{
2997	dSP;
2998	ENTER;
2999	SAVETMPS;
3000	PUTBACK;
3001	PUSHSTACK;	3238	PUSHSTACK;
		3239
3002	PUSHMARK (SP);	3240	PUSHMARK (SP);
		3241	PUTBACK;
3003		3242
3004	if (ix)	3243	if (ix)
3005	eval_sv (coderef, 0);	3244	eval_sv (coderef, 0);
3006	else	3245	else
3007	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3246	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3008		3247
3009	POPSTACK;	3248	POPSTACK;
3010	SPAGAIN;	3249	SPAGAIN;
3011	FREETMPS;
3012	LEAVE;
3013	PUTBACK;
3014	}
3015		3250
3016	if (!(coro->flags & CF_RUNNING))	3251	if (current != coro)
3017	{	3252	{
		3253	PUTBACK;
3018	save_perl (aTHX_ coro);	3254	save_perl (aTHX_ coro);
3019	load_perl (aTHX_ &temp);	3255	load_perl (aTHX_ current);
3020	SPAGAIN;	3256	SPAGAIN;
3021	}	3257	}
3022	}	3258	}
3023	}	3259	}
3024		3260
…		…
3028	ALIAS:	3264	ALIAS:
3029	is_ready = CF_READY	3265	is_ready = CF_READY
3030	is_running = CF_RUNNING	3266	is_running = CF_RUNNING
3031	is_new = CF_NEW	3267	is_new = CF_NEW
3032	is_destroyed = CF_DESTROYED	3268	is_destroyed = CF_DESTROYED
		3269	is_suspended = CF_SUSPENDED
3033	CODE:	3270	CODE:
3034	RETVAL = boolSV (coro->flags & ix);	3271	RETVAL = boolSV (coro->flags & ix);
3035	OUTPUT:	3272	OUTPUT:
3036	RETVAL	3273	RETVAL
3037		3274
…		…
3041	CODE:	3278	CODE:
3042	{	3279	{
3043	struct coro *current = SvSTATE_current;	3280	struct coro *current = SvSTATE_current;
3044	SV **throwp = self == current ? &CORO_THROW : &self->except;	3281	SV **throwp = self == current ? &CORO_THROW : &self->except;
3045	SvREFCNT_dec (*throwp);	3282	SvREFCNT_dec (*throwp);
		3283	SvGETMAGIC (throw);
3046	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3284	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
3047	}	3285	}
3048		3286
3049	void	3287	void
3050	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3288	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
…		…
3102	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3340	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3103		3341
3104	SV *tmp = *src; *src = *dst; *dst = tmp;	3342	SV *tmp = *src; *src = *dst; *dst = tmp;
3105	}	3343	}
3106		3344
		3345	void
		3346	cancel (Coro::State self)
		3347	CODE:
		3348	coro_state_destroy (aTHX_ self);
		3349	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3350
		3351
		3352	SV *
		3353	enable_times (int enabled = enable_times)
		3354	CODE:
		3355	{
		3356	RETVAL = boolSV (enable_times);
		3357
		3358	if (enabled != enable_times)
		3359	{
		3360	enable_times = enabled;
		3361
		3362	coro_times_update ();
		3363	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3364	}
		3365	}
		3366	OUTPUT:
		3367	RETVAL
		3368
		3369	void
		3370	times (Coro::State self)
		3371	PPCODE:
		3372	{
		3373	struct coro *current = SvSTATE (coro_current);
		3374
		3375	if (expect_false (current == self))
		3376	{
		3377	coro_times_update ();
		3378	coro_times_add (SvSTATE (coro_current));
		3379	}
		3380
		3381	EXTEND (SP, 2);
		3382	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3383	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3384
		3385	if (expect_false (current == self))
		3386	coro_times_sub (SvSTATE (coro_current));
		3387	}
		3388
		3389	void
		3390	swap_sv (Coro::State coro, SV *sv, SV *swapsv)
		3391	CODE:
		3392	{
		3393	struct coro *current = SvSTATE_current;
		3394
		3395	if (current == coro)
		3396	SWAP_SVS (current);
		3397
		3398	if (!coro->swap_sv)
		3399	coro->swap_sv = newAV ();
		3400
		3401	av_push (coro->swap_sv, SvREFCNT_inc_NN (sv));
		3402	av_push (coro->swap_sv, SvREFCNT_inc_NN (swapsv));
		3403
		3404	if (current == coro)
		3405	SWAP_SVS (current);
		3406	}
		3407
3107		3408
3108	MODULE = Coro::State PACKAGE = Coro	3409	MODULE = Coro::State PACKAGE = Coro
3109		3410
3110	BOOT:	3411	BOOT:
3111	{	3412	{
3112	int i;
3113
3114	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3413	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3115	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3414	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3116	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3415	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3117	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3416	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3118	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3417	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3119	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3418	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3120	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3419	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3121	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3420	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3122	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);	3421	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3123		3422
3124	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3423	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3125	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3424	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3126	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3425	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3127	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3426	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3128		3427
3129	coro_stash = gv_stashpv ("Coro", TRUE);	3428	coro_stash = gv_stashpv ("Coro", TRUE);
3130		3429
3131	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3430	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3132	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3431	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3133	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3432	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3134	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3433	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3135	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3434	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3136	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3435	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3137
3138	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3139	coro_ready[i] = newAV ();
3140		3436
3141	{	3437	{
3142	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3438	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3143		3439
3144	coroapi.schedule = api_schedule;	3440	coroapi.schedule = api_schedule;
…		…
3154	sv_setiv (sv, (IV)&coroapi);	3450	sv_setiv (sv, (IV)&coroapi);
3155	SvREADONLY_on (sv);	3451	SvREADONLY_on (sv);
3156	}	3452	}
3157	}	3453	}
3158		3454
		3455	SV *
		3456	async (...)
		3457	PROTOTYPE: &@
		3458	CODE:
		3459	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3460	api_ready (aTHX_ RETVAL);
		3461	OUTPUT:
		3462	RETVAL
		3463
3159	void	3464	void
3160	terminate (...)	3465	terminate (...)
3161	CODE:	3466	CODE:
3162	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3467	CORO_EXECUTE_SLF_XS (slf_init_terminate);
3163		3468
…		…
3183		3488
3184	void	3489	void
3185	cede_notself (...)	3490	cede_notself (...)
3186	CODE:	3491	CODE:
3187	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3492	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3188
3189	void
3190	_cancel (Coro::State self)
3191	CODE:
3192	coro_state_destroy (aTHX_ self);
3193	coro_call_on_destroy (aTHX_ self);
3194		3493
3195	void	3494	void
3196	_set_current (SV *current)	3495	_set_current (SV *current)
3197	PROTOTYPE: $	3496	PROTOTYPE: $
3198	CODE:	3497	CODE:
…		…
3202	void	3501	void
3203	_set_readyhook (SV *hook)	3502	_set_readyhook (SV *hook)
3204	PROTOTYPE: $	3503	PROTOTYPE: $
3205	CODE:	3504	CODE:
3206	SvREFCNT_dec (coro_readyhook);	3505	SvREFCNT_dec (coro_readyhook);
		3506	SvGETMAGIC (hook);
		3507	if (SvOK (hook))
		3508	{
3207	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3509	coro_readyhook = newSVsv (hook);
		3510	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3511	}
		3512	else
		3513	{
		3514	coro_readyhook = 0;
		3515	CORO_READYHOOK = 0;
		3516	}
3208		3517
3209	int	3518	int
3210	prio (Coro::State coro, int newprio = 0)	3519	prio (Coro::State coro, int newprio = 0)
3211	PROTOTYPE: $;$	3520	PROTOTYPE: $;$
3212	ALIAS:	3521	ALIAS:
…		…
3218	if (items > 1)	3527	if (items > 1)
3219	{	3528	{
3220	if (ix)	3529	if (ix)
3221	newprio = coro->prio - newprio;	3530	newprio = coro->prio - newprio;
3222		3531
3223	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3532	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3224	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3533	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3225		3534
3226	coro->prio = newprio;	3535	coro->prio = newprio;
3227	}	3536	}
3228	}	3537	}
3229	OUTPUT:	3538	OUTPUT:
…		…
3244	RETVAL = coro_nready;	3553	RETVAL = coro_nready;
3245	OUTPUT:	3554	OUTPUT:
3246	RETVAL	3555	RETVAL
3247		3556
3248	void	3557	void
		3558	suspend (Coro::State self)
		3559	PROTOTYPE: $
		3560	CODE:
		3561	self->flags |= CF_SUSPENDED;
		3562
		3563	void
		3564	resume (Coro::State self)
		3565	PROTOTYPE: $
		3566	CODE:
		3567	self->flags &= ~CF_SUSPENDED;
		3568
		3569	void
3249	_pool_handler (...)	3570	_pool_handler (...)
3250	CODE:	3571	CODE:
3251	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3572	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3252		3573
3253	void	3574	void
…		…
3264	for (i = 1; i < items; ++i)	3585	for (i = 1; i < items; ++i)
3265	av_push (av, SvREFCNT_inc_NN (ST (i)));	3586	av_push (av, SvREFCNT_inc_NN (ST (i)));
3266		3587
3267	if ((SV *)hv == &PL_sv_undef)	3588	if ((SV *)hv == &PL_sv_undef)
3268	{	3589	{
3269	PUSHMARK (SP);	3590	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3270	EXTEND (SP, 2);
3271	PUSHs (sv_Coro);
3272	PUSHs ((SV *)cv_pool_handler);
3273	PUTBACK;
3274	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3275	SPAGAIN;
3276
3277	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3591	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3592	SvREFCNT_dec (sv);
3278	}	3593	}
3279		3594
3280	{	3595	{
3281	struct coro *coro = SvSTATE_hv (hv);	3596	struct coro *coro = SvSTATE_hv (hv);
3282		3597
…		…
3306	rouse_wait (...)	3621	rouse_wait (...)
3307	PROTOTYPE: ;$	3622	PROTOTYPE: ;$
3308	PPCODE:	3623	PPCODE:
3309	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3624	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3310		3625
		3626	void
		3627	on_enter (SV *block)
		3628	ALIAS:
		3629	on_leave = 1
		3630	PROTOTYPE: &
		3631	CODE:
		3632	{
		3633	struct coro *coro = SvSTATE_current;
		3634	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3635
		3636	block = s_get_cv_croak (block);
		3637
		3638	if (!*avp)
		3639	*avp = newAV ();
		3640
		3641	av_push (*avp, SvREFCNT_inc (block));
		3642
		3643	if (!ix)
		3644	on_enterleave_call (aTHX_ block);
		3645
		3646	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3647	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3648	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3649	}
		3650
3311		3651
3312	MODULE = Coro::State PACKAGE = PerlIO::cede	3652	MODULE = Coro::State PACKAGE = PerlIO::cede
3313		3653
3314	BOOT:	3654	BOOT:
3315	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3655	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3318	MODULE = Coro::State PACKAGE = Coro::Semaphore	3658	MODULE = Coro::State PACKAGE = Coro::Semaphore
3319		3659
3320	SV *	3660	SV *
3321	new (SV *klass, SV *count = 0)	3661	new (SV *klass, SV *count = 0)
3322	CODE:	3662	CODE:
		3663	{
		3664	int semcnt = 1;
		3665
		3666	if (count)
		3667	{
		3668	SvGETMAGIC (count);
		3669
		3670	if (SvOK (count))
		3671	semcnt = SvIV (count);
		3672	}
		3673
3323	RETVAL = sv_bless (	3674	RETVAL = sv_bless (
3324	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3675	coro_waitarray_new (aTHX_ semcnt),
3325	GvSTASH (CvGV (cv))	3676	GvSTASH (CvGV (cv))
3326	);	3677	);
		3678	}
3327	OUTPUT:	3679	OUTPUT:
3328	RETVAL	3680	RETVAL
3329		3681
3330	# helper for Coro::Channel	3682	# helper for Coro::Channel and others
3331	SV *	3683	SV *
3332	_alloc (int count)	3684	_alloc (int count)
3333	CODE:	3685	CODE:
3334	RETVAL = coro_waitarray_new (aTHX_ count);	3686	RETVAL = coro_waitarray_new (aTHX_ count);
3335	OUTPUT:	3687	OUTPUT:
…		…
3393	for (i = 1; i <= wcount; ++i)	3745	for (i = 1; i <= wcount; ++i)
3394	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3746	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3395	}	3747	}
3396	}	3748	}
3397		3749
		3750	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3751
		3752	void
		3753	_may_delete (SV *sem, int count, int extra_refs)
		3754	PPCODE:
		3755	{
		3756	AV *av = (AV *)SvRV (sem);
		3757
		3758	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3759	&& AvFILLp (av) == 0 /* no waiters, just count */
		3760	&& SvIV (AvARRAY (av)[0]) == count)
		3761	XSRETURN_YES;
		3762
		3763	XSRETURN_NO;
		3764	}
		3765
3398	MODULE = Coro::State PACKAGE = Coro::Signal	3766	MODULE = Coro::State PACKAGE = Coro::Signal
3399		3767
3400	SV *	3768	SV *
3401	new (SV *klass)	3769	new (SV *klass)
3402	CODE:	3770	CODE:
…		…
3473		3841
3474	void	3842	void
3475	_register (char *target, char *proto, SV *req)	3843	_register (char *target, char *proto, SV *req)
3476	CODE:	3844	CODE:
3477	{	3845	{
3478	CV *req_cv = coro_sv_2cv (aTHX_ req);	3846	SV *req_cv = s_get_cv_croak (req);
3479	/* newXSproto doesn't return the CV on 5.8 */	3847	/* newXSproto doesn't return the CV on 5.8 */
3480	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3848	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3481	sv_setpv ((SV *)slf_cv, proto);	3849	sv_setpv ((SV *)slf_cv, proto);
3482	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3850	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3483	}	3851	}
3484		3852
		3853	MODULE = Coro::State PACKAGE = Coro::Select
		3854
		3855	void
		3856	patch_pp_sselect ()
		3857	CODE:
		3858	if (!coro_old_pp_sselect)
		3859	{
		3860	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3861	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3862	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3863	}
		3864
		3865	void
		3866	unpatch_pp_sselect ()
		3867	CODE:
		3868	if (coro_old_pp_sselect)
		3869	{
		3870	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3871	coro_old_pp_sselect = 0;
		3872	}
		3873
		3874

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