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Comparing Coro/Coro/State.xs (file contents):
Revision 1.325 by root, Sun Nov 23 06:48:45 2008 UTC vs.
Revision 1.381 by root, Sat Oct 23 09:28:50 2010 UTC

		1	/* this works around a bug in mingw32 providing a non-working setjmp */
		2	#define USE_NO_MINGW_SETJMP_TWO_ARGS
		3
		4	#define NDEBUG 1
		5
1	#include "libcoro/coro.c"	6	#include "libcoro/coro.c"
2		7
3	#define PERL_NO_GET_CONTEXT	8	#define PERL_NO_GET_CONTEXT
4	#define PERL_EXT	9	#define PERL_EXT
5		10
6	#include "EXTERN.h"	11	#include "EXTERN.h"
7	#include "perl.h"	12	#include "perl.h"
8	#include "XSUB.h"	13	#include "XSUB.h"
9	#include "perliol.h"	14	#include "perliol.h"
10		15
11	#include "patchlevel.h"	16	#include "schmorp.h"
12		17
13	#include <stdio.h>	18	#include <stdio.h>
14	#include <errno.h>	19	#include <errno.h>
15	#include <assert.h>	20	#include <assert.h>
		21
		22	#ifndef SVs_PADSTALE
		23	# define SVs_PADSTALE 0
		24	#endif
16		25
17	#ifdef WIN32	26	#ifdef WIN32
18	# undef setjmp	27	# undef setjmp
19	# undef longjmp	28	# undef longjmp
20	# undef _exit	29	# undef _exit
…		…
51	#endif	60	#endif
52		61
53	/* the maximum number of idle cctx that will be pooled */	62	/* the maximum number of idle cctx that will be pooled */
54	static int cctx_max_idle = 4;	63	static int cctx_max_idle = 4;
55		64
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	65	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116	# undef CORO_STACKGUARD	66	# undef CORO_STACKGUARD
117	#endif	67	#endif
118		68
119	#ifndef CORO_STACKGUARD	69	#ifndef CORO_STACKGUARD
…		…
133	#else	83	#else
134	# define dSTACKLEVEL volatile void *stacklevel	84	# define dSTACKLEVEL volatile void *stacklevel
135	# define STACKLEVEL ((void *)&stacklevel)	85	# define STACKLEVEL ((void *)&stacklevel)
136	#endif	86	#endif
137		87
138	#define IN_DESTRUCT (PL_main_cv == Nullcv)	88	#define IN_DESTRUCT PL_dirty
139		89
140	#if __GNUC__ >= 3	90	#if __GNUC__ >= 3
141	# define attribute(x) __attribute__(x)	91	# define attribute(x) __attribute__(x)
142	# define expect(expr,value) __builtin_expect ((expr),(value))	92	# define expect(expr,value) __builtin_expect ((expr), (value))
143	# define INLINE static inline	93	# define INLINE static inline
144	#else	94	#else
145	# define attribute(x)	95	# define attribute(x)
146	# define expect(expr,value) (expr)	96	# define expect(expr,value) (expr)
147	# define INLINE static	97	# define INLINE static
…		…
159	# if CORO_PTHREAD	109	# if CORO_PTHREAD
160	static void *coro_thx;	110	static void *coro_thx;
161	# endif	111	# endif
162	#endif	112	#endif
163		113
		114	#ifdef __linux
		115	# include <time.h> /* for timespec */
		116	# include <syscall.h> /* for SYS_* */
		117	# ifdef SYS_clock_gettime
		118	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		119	# define CORO_CLOCK_MONOTONIC 1
		120	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
		121	# endif
		122	#endif
		123
164	static double (*nvtime)(); /* so why doesn't it take void? */	124	static double (*nvtime)(); /* so why doesn't it take void? */
		125	static void (*u2time)(pTHX_ UV ret[2]);
165		126
166	/* we hijack an hopefully unused CV flag for our purposes */	127	/* we hijack an hopefully unused CV flag for our purposes */
167	#define CVf_SLF 0x4000	128	#define CVf_SLF 0x4000
168	static OP *pp_slf (pTHX);	129	static OP *pp_slf (pTHX);
169		130
…		…
175	static HV *coro_state_stash, *coro_stash;	136	static HV *coro_state_stash, *coro_stash;
176	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */	137	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
177		138
178	static AV *av_destroy; /* destruction queue */	139	static AV *av_destroy; /* destruction queue */
179	static SV *sv_manager; /* the manager coro */	140	static SV *sv_manager; /* the manager coro */
		141	static SV *sv_idle; /* $Coro::idle */
180		142
181	static GV *irsgv; /* $/ */	143	static GV *irsgv; /* $/ */
182	static GV *stdoutgv; /* *STDOUT */	144	static GV *stdoutgv; /* *STDOUT */
183	static SV *rv_diehook;	145	static SV *rv_diehook;
184	static SV *rv_warnhook;	146	static SV *rv_warnhook;
…		…
189	static SV *sv_pool_size;	151	static SV *sv_pool_size;
190	static SV *sv_async_pool_idle; /* description string */	152	static SV *sv_async_pool_idle; /* description string */
191	static AV *av_async_pool; /* idle pool */	153	static AV *av_async_pool; /* idle pool */
192	static SV *sv_Coro; /* class string */	154	static SV *sv_Coro; /* class string */
193	static CV *cv_pool_handler;	155	static CV *cv_pool_handler;
194	static CV *cv_coro_state_new;
195		156
196	/* Coro::AnyEvent */	157	/* Coro::AnyEvent */
197	static SV *sv_activity;	158	static SV *sv_activity;
		159
		160	/* enable processtime/realtime profiling */
		161	static char enable_times;
		162	typedef U32 coro_ts[2];
		163	static coro_ts time_real, time_cpu;
		164	static char times_valid;
198		165
199	static struct coro_cctx *cctx_first;	166	static struct coro_cctx *cctx_first;
200	static int cctx_count, cctx_idle;	167	static int cctx_count, cctx_idle;
201		168
202	enum {	169	enum {
…		…
237	enum {	204	enum {
238	CF_RUNNING = 0x0001, /* coroutine is running */	205	CF_RUNNING = 0x0001, /* coroutine is running */
239	CF_READY = 0x0002, /* coroutine is ready */	206	CF_READY = 0x0002, /* coroutine is ready */
240	CF_NEW = 0x0004, /* has never been switched to */	207	CF_NEW = 0x0004, /* has never been switched to */
241	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	208	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		209	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
242	};	210	};
243		211
244	/* the structure where most of the perl state is stored, overlaid on the cxstack */	212	/* the structure where most of the perl state is stored, overlaid on the cxstack */
245	typedef struct	213	typedef struct
246	{	214	{
247	SV *defsv;	215	SV *defsv;
248	AV *defav;	216	AV *defav;
249	SV *errsv;	217	SV *errsv;
250	SV *irsgv;	218	SV *irsgv;
		219	HV *hinthv;
251	#define VAR(name,type) type name;	220	#define VAR(name,type) type name;
252	# include "state.h"	221	# include "state.h"
253	#undef VAR	222	#undef VAR
254	} perl_slots;	223	} perl_slots;
255		224
…		…
257		226
258	/* this is a structure representing a perl-level coroutine */	227	/* this is a structure representing a perl-level coroutine */
259	struct coro {	228	struct coro {
260	/* the C coroutine allocated to this perl coroutine, if any */	229	/* the C coroutine allocated to this perl coroutine, if any */
261	coro_cctx *cctx;	230	coro_cctx *cctx;
		231
		232	/* ready queue */
		233	struct coro *next_ready;
262		234
263	/* state data */	235	/* state data */
264	struct CoroSLF slf_frame; /* saved slf frame */	236	struct CoroSLF slf_frame; /* saved slf frame */
265	AV *mainstack;	237	AV *mainstack;
266	perl_slots *slot; /* basically the saved sp */	238	perl_slots *slot; /* basically the saved sp */
…		…
283	/* async_pool */	255	/* async_pool */
284	SV *saved_deffh;	256	SV *saved_deffh;
285	SV *invoke_cb;	257	SV *invoke_cb;
286	AV *invoke_av;	258	AV *invoke_av;
287		259
		260	/* on_enter/on_leave */
		261	AV *on_enter;
		262	AV *on_leave;
		263
		264	/* swap_sv */
		265	AV *swap_sv;
		266
		267	/* times */
		268	coro_ts t_cpu, t_real;
		269
288	/* linked list */	270	/* linked list */
289	struct coro *next, *prev;	271	struct coro *next, *prev;
290	};	272	};
291		273
292	typedef struct coro *Coro__State;	274	typedef struct coro *Coro__State;
…		…
297	/* the mainr easonw e don't support windows process emulation */	279	/* the mainr easonw e don't support windows process emulation */
298	static struct CoroSLF slf_frame; /* the current slf frame */	280	static struct CoroSLF slf_frame; /* the current slf frame */
299		281
300	/** Coro ********************************************************************/	282	/** Coro ********************************************************************/
301		283
302	#define PRIO_MAX 3	284	#define CORO_PRIO_MAX 3
303	#define PRIO_HIGH 1	285	#define CORO_PRIO_HIGH 1
304	#define PRIO_NORMAL 0	286	#define CORO_PRIO_NORMAL 0
305	#define PRIO_LOW -1	287	#define CORO_PRIO_LOW -1
306	#define PRIO_IDLE -3	288	#define CORO_PRIO_IDLE -3
307	#define PRIO_MIN -4	289	#define CORO_PRIO_MIN -4
308		290
309	/* for Coro.pm */	291	/* for Coro.pm */
310	static SV *coro_current;	292	static SV *coro_current;
311	static SV *coro_readyhook;	293	static SV *coro_readyhook;
312	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	294	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
313	static CV *cv_coro_run, *cv_coro_terminate;	295	static CV *cv_coro_run, *cv_coro_terminate;
314	static struct coro *coro_first;	296	static struct coro *coro_first;
315	#define coro_nready coroapi.nready	297	#define coro_nready coroapi.nready
		298
		299	/** Coro::Select ************************************************************/
		300
		301	static OP *(*coro_old_pp_sselect) (pTHX);
		302	static SV *coro_select_select;
		303
		304	/* horrible hack, but if it works... */
		305	static OP *
		306	coro_pp_sselect (pTHX)
		307	{
		308	dSP;
		309	PUSHMARK (SP - 4); /* fake argument list */
		310	XPUSHs (coro_select_select);
		311	PUTBACK;
		312
		313	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
		314	PL_op->op_flags |= OPf_STACKED;
		315	PL_op->op_private = 0;
		316	return PL_ppaddr [OP_ENTERSUB](aTHX);
		317	}
316		318
317	/** lowlevel stuff **********************************************************/	319	/** lowlevel stuff **********************************************************/
318		320
319	static SV *	321	static SV *
320	coro_get_sv (pTHX_ const char *name, int create)	322	coro_get_sv (pTHX_ const char *name, int create)
…		…
344	get_hv (name, create);	346	get_hv (name, create);
345	#endif	347	#endif
346	return get_hv (name, create);	348	return get_hv (name, create);
347	}	349	}
348		350
349	/* may croak */	351	INLINE void
350	INLINE CV *	352	coro_times_update ()
351	coro_sv_2cv (pTHX_ SV *sv)
352	{	353	{
		354	#ifdef coro_clock_gettime
		355	struct timespec ts;
		356
		357	ts.tv_sec = ts.tv_nsec = 0;
		358	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		359	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
		360
		361	ts.tv_sec = ts.tv_nsec = 0;
		362	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		363	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		364	#else
		365	dTHX;
		366	UV tv[2];
		367
		368	u2time (aTHX_ tv);
		369	time_real [0] = tv [0];
		370	time_real [1] = tv [1] * 1000;
		371	#endif
		372	}
		373
		374	INLINE void
		375	coro_times_add (struct coro *c)
		376	{
		377	c->t_real [1] += time_real [1];
		378	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		379	c->t_real [0] += time_real [0];
		380
		381	c->t_cpu [1] += time_cpu [1];
		382	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		383	c->t_cpu [0] += time_cpu [0];
		384	}
		385
		386	INLINE void
		387	coro_times_sub (struct coro *c)
		388	{
		389	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		390	c->t_real [1] -= time_real [1];
		391	c->t_real [0] -= time_real [0];
		392
		393	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		394	c->t_cpu [1] -= time_cpu [1];
		395	c->t_cpu [0] -= time_cpu [0];
		396	}
		397
		398	/*****************************************************************************/
		399	/* magic glue */
		400
		401	#define CORO_MAGIC_type_cv 26
		402	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		403
		404	#define CORO_MAGIC_NN(sv, type) \
		405	(expect_true (SvMAGIC (sv)->mg_type == type) \
		406	? SvMAGIC (sv) \
		407	: mg_find (sv, type))
		408
		409	#define CORO_MAGIC(sv, type) \
		410	(expect_true (SvMAGIC (sv)) \
		411	? CORO_MAGIC_NN (sv, type) \
		412	: 0)
		413
		414	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		415	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		416
		417	INLINE struct coro *
		418	SvSTATE_ (pTHX_ SV *coro)
		419	{
353	HV *st;	420	HV *stash;
354	GV *gvp;	421	MAGIC *mg;
355	return sv_2cv (sv, &st, &gvp, 0);	422
		423	if (SvROK (coro))
		424	coro = SvRV (coro);
		425
		426	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		427	croak ("Coro::State object required");
		428
		429	stash = SvSTASH (coro);
		430	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		431	{
		432	/* very slow, but rare, check */
		433	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		434	croak ("Coro::State object required");
		435	}
		436
		437	mg = CORO_MAGIC_state (coro);
		438	return (struct coro *)mg->mg_ptr;
356	}	439	}
		440
		441	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		442
		443	/* faster than SvSTATE, but expects a coroutine hv */
		444	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		445	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		446
		447	/*****************************************************************************/
		448	/* padlist management and caching */
357		449
358	static AV *	450	static AV *
359	coro_derive_padlist (pTHX_ CV *cv)	451	coro_derive_padlist (pTHX_ CV *cv)
360	{	452	{
361	AV *padlist = CvPADLIST (cv);	453	AV *padlist = CvPADLIST (cv);
…		…
369	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	461	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
370	#endif	462	#endif
371	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	463	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
372	--AvFILLp (padlist);	464	--AvFILLp (padlist);
373		465
374	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	466	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
375	av_store (newpadlist, 1, (SV *)newpad);	467	av_store (newpadlist, 1, (SV *)newpad);
376		468
377	return newpadlist;	469	return newpadlist;
378	}	470	}
379		471
380	static void	472	static void
381	free_padlist (pTHX_ AV *padlist)	473	free_padlist (pTHX_ AV *padlist)
382	{	474	{
383	/* may be during global destruction */	475	/* may be during global destruction */
384	if (SvREFCNT (padlist))	476	if (!IN_DESTRUCT)
385	{	477	{
386	I32 i = AvFILLp (padlist);	478	I32 i = AvFILLp (padlist);
387	while (i >= 0)	479
		480	while (i > 0) /* special-case index 0 */
388	{	481	{
389	SV **svp = av_fetch (padlist, i--, FALSE);	482	/* we try to be extra-careful here */
390	if (svp)	483	AV *av = (AV *)AvARRAY (padlist)[i--];
391	{	484	I32 j = AvFILLp (av);
392	SV *sv;	485
393	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	486	while (j >= 0)
		487	SvREFCNT_dec (AvARRAY (av)[j--]);
		488
		489	AvFILLp (av) = -1;
394	SvREFCNT_dec (sv);	490	SvREFCNT_dec (av);
395
396	SvREFCNT_dec (*svp);
397	}
398	}	491	}
399		492
		493	SvREFCNT_dec (AvARRAY (padlist)[0]);
		494
		495	AvFILLp (padlist) = -1;
400	SvREFCNT_dec ((SV*)padlist);	496	SvREFCNT_dec ((SV*)padlist);
401	}	497	}
402	}	498	}
403		499
404	static int	500	static int
405	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	501	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
406	{	502	{
407	AV *padlist;	503	AV *padlist;
408	AV *av = (AV *)mg->mg_obj;	504	AV *av = (AV *)mg->mg_obj;
		505
		506	/* perl manages to free our internal AV and _then_ call us */
		507	if (IN_DESTRUCT)
		508	return 0;
409		509
410	/* casting is fun. */	510	/* casting is fun. */
411	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	511	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
412	free_padlist (aTHX_ padlist);	512	free_padlist (aTHX_ padlist);
413		513
414	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	514	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
415		515
416	return 0;	516	return 0;
417	}	517	}
418
419	#define CORO_MAGIC_type_cv 26
420	#define CORO_MAGIC_type_state PERL_MAGIC_ext
421		518
422	static MGVTBL coro_cv_vtbl = {	519	static MGVTBL coro_cv_vtbl = {
423	0, 0, 0, 0,	520	0, 0, 0, 0,
424	coro_cv_free	521	coro_cv_free
425	};	522	};
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		523
470	/* the next two functions merely cache the padlists */	524	/* the next two functions merely cache the padlists */
471	static void	525	static void
472	get_padlist (pTHX_ CV *cv)	526	get_padlist (pTHX_ CV *cv)
473	{	527	{
…		…
501	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	555	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
502		556
503	av = (AV *)mg->mg_obj;	557	av = (AV *)mg->mg_obj;
504		558
505	if (expect_false (AvFILLp (av) >= AvMAX (av)))	559	if (expect_false (AvFILLp (av) >= AvMAX (av)))
506	av_extend (av, AvMAX (av) + 1);	560	av_extend (av, AvFILLp (av) + 1);
507		561
508	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	562	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
509	}	563	}
510		564
511	/** load & save, init *******************************************************/	565	/** load & save, init *******************************************************/
		566
		567	/* swap sv heads, at least logically */
		568	static void
		569	swap_svs (pTHX_ Coro__State c)
		570	{
		571	int i;
		572
		573	for (i = 0; i <= AvFILLp (c->swap_sv); )
		574	{
		575	SV *a = AvARRAY (c->swap_sv)[i++];
		576	SV *b = AvARRAY (c->swap_sv)[i++];
		577
		578	const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
		579	SV tmp;
		580
		581	/* swap sv_any */
		582	SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
		583
		584	/* swap sv_flags */
		585	SvFLAGS (&tmp) = SvFLAGS (a);
		586	SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
		587	SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
		588
		589	#if PERL_VERSION_ATLEAST (5,10,0)
		590	/* perl 5.10 complicates this _quite_ a bit, but it also is
		591	* is much faster, so no quarrels here. alternatively, we could
		592	* sv_upgrade to avoid this.
		593	*/
		594	{
		595	/* swap sv_u */
		596	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
		597
		598	/* if SvANY points to the head, we need to adjust the pointers,
		599	* as the pointer for a still points to b, and maybe vice versa.
		600	*/
		601	#define svany_in_head(type) \
		602	(((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
		603
		604	if (svany_in_head (SvTYPE (a)))
		605	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
		606
		607	if (svany_in_head (SvTYPE (b)))
		608	SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
		609	}
		610	#endif
		611	}
		612	}
		613
		614	#define SWAP_SVS(coro) \
		615	if (expect_false ((coro)->swap_sv)) \
		616	swap_svs (aTHX_ (coro))
		617
		618	static void
		619	on_enterleave_call (pTHX_ SV *cb);
512		620
513	static void	621	static void
514	load_perl (pTHX_ Coro__State c)	622	load_perl (pTHX_ Coro__State c)
515	{	623	{
516	perl_slots *slot = c->slot;	624	perl_slots *slot = c->slot;
517	c->slot = 0;	625	c->slot = 0;
518		626
519	PL_mainstack = c->mainstack;	627	PL_mainstack = c->mainstack;
520		628
521	GvSV (PL_defgv) = slot->defsv;	629	GvSV (PL_defgv) = slot->defsv;
522	GvAV (PL_defgv) = slot->defav;	630	GvAV (PL_defgv) = slot->defav;
523	GvSV (PL_errgv) = slot->errsv;	631	GvSV (PL_errgv) = slot->errsv;
524	GvSV (irsgv) = slot->irsgv;	632	GvSV (irsgv) = slot->irsgv;
		633	GvHV (PL_hintgv) = slot->hinthv;
525		634
526	#define VAR(name,type) PL_ ## name = slot->name;	635	#define VAR(name,type) PL_ ## name = slot->name;
527	# include "state.h"	636	# include "state.h"
528	#undef VAR	637	#undef VAR
529		638
…		…
543	PUTBACK;	652	PUTBACK;
544	}	653	}
545		654
546	slf_frame = c->slf_frame;	655	slf_frame = c->slf_frame;
547	CORO_THROW = c->except;	656	CORO_THROW = c->except;
		657
		658	if (expect_false (enable_times))
		659	{
		660	if (expect_false (!times_valid))
		661	coro_times_update ();
		662
		663	coro_times_sub (c);
		664	}
		665
		666	if (expect_false (c->on_enter))
		667	{
		668	int i;
		669
		670	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		671	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		672	}
		673
		674	SWAP_SVS (c);
548	}	675	}
549		676
550	static void	677	static void
551	save_perl (pTHX_ Coro__State c)	678	save_perl (pTHX_ Coro__State c)
552	{	679	{
		680	SWAP_SVS (c);
		681
		682	if (expect_false (c->on_leave))
		683	{
		684	int i;
		685
		686	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		687	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		688	}
		689
		690	times_valid = 0;
		691
		692	if (expect_false (enable_times))
		693	{
		694	coro_times_update (); times_valid = 1;
		695	coro_times_add (c);
		696	}
		697
553	c->except = CORO_THROW;	698	c->except = CORO_THROW;
554	c->slf_frame = slf_frame;	699	c->slf_frame = slf_frame;
555		700
556	{	701	{
557	dSP;	702	dSP;
…		…
570	{	715	{
571	while (expect_true (cxix >= 0))	716	while (expect_true (cxix >= 0))
572	{	717	{
573	PERL_CONTEXT *cx = &ccstk[cxix--];	718	PERL_CONTEXT *cx = &ccstk[cxix--];
574		719
575	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))	720	if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
576	{	721	{
577	CV *cv = cx->blk_sub.cv;	722	CV *cv = cx->blk_sub.cv;
578		723
579	if (expect_true (CvDEPTH (cv)))	724	if (expect_true (CvDEPTH (cv)))
580	{	725	{
…		…
604	/* we manually unroll here, as usually 2 slots is enough */	749	/* we manually unroll here, as usually 2 slots is enough */
605	if (SLOT_COUNT >= 1) CXINC;	750	if (SLOT_COUNT >= 1) CXINC;
606	if (SLOT_COUNT >= 2) CXINC;	751	if (SLOT_COUNT >= 2) CXINC;
607	if (SLOT_COUNT >= 3) CXINC;	752	if (SLOT_COUNT >= 3) CXINC;
608	{	753	{
609	int i;	754	unsigned int i;
610	for (i = 3; i < SLOT_COUNT; ++i)	755	for (i = 3; i < SLOT_COUNT; ++i)
611	CXINC;	756	CXINC;
612	}	757	}
613	cxstack_ix -= SLOT_COUNT; /* undo allocation */	758	cxstack_ix -= SLOT_COUNT; /* undo allocation */
614		759
615	c->mainstack = PL_mainstack;	760	c->mainstack = PL_mainstack;
616		761
617	{	762	{
618	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	763	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
619		764
620	slot->defav = GvAV (PL_defgv);	765	slot->defav = GvAV (PL_defgv);
621	slot->defsv = DEFSV;	766	slot->defsv = DEFSV;
622	slot->errsv = ERRSV;	767	slot->errsv = ERRSV;
623	slot->irsgv = GvSV (irsgv);	768	slot->irsgv = GvSV (irsgv);
		769	slot->hinthv = GvHV (PL_hintgv);
624		770
625	#define VAR(name,type) slot->name = PL_ ## name;	771	#define VAR(name,type) slot->name = PL_ ## name;
626	# include "state.h"	772	# include "state.h"
627	#undef VAR	773	#undef VAR
628	}	774	}
…		…
755	#endif	901	#endif
756		902
757	/*	903	/*
758	* This overrides the default magic get method of %SIG elements.	904	* This overrides the default magic get method of %SIG elements.
759	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	905	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
760	* and instead of tryign to save and restore the hash elements, we just provide	906	* and instead of trying to save and restore the hash elements, we just provide
761	* readback here.	907	* readback here.
762	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
763	* not expecting this to actually change the hook. This is a potential problem
764	* when a schedule happens then, but we ignore this.
765	*/	908	*/
766	static int	909	static int
767	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	910	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
768	{	911	{
769	const char *s = MgPV_nolen_const (mg);	912	const char *s = MgPV_nolen_const (mg);
…		…
822	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	965	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
823		966
824	if (svp)	967	if (svp)
825	{	968	{
826	SV *old = *svp;	969	SV *old = *svp;
827	*svp = newSVsv (sv);	970	*svp = SvOK (sv) ? newSVsv (sv) : 0;
828	SvREFCNT_dec (old);	971	SvREFCNT_dec (old);
829	return 0;	972	return 0;
830	}	973	}
831	}	974	}
832		975
…		…
850	slf_check_repeat (pTHX_ struct CoroSLF *frame)	993	slf_check_repeat (pTHX_ struct CoroSLF *frame)
851	{	994	{
852	return 1;	995	return 1;
853	}	996	}
854		997
855	static UNOP coro_setup_op;	998	static UNOP init_perl_op;
856		999
857	static void NOINLINE /* noinline to keep it out of the transfer fast path */	1000	static void NOINLINE /* noinline to keep it out of the transfer fast path */
858	coro_setup (pTHX_ struct coro *coro)	1001	init_perl (pTHX_ struct coro *coro)
859	{	1002	{
860	/*	1003	/*
861	* emulate part of the perl startup here.	1004	* emulate part of the perl startup here.
862	*/	1005	*/
863	coro_init_stacks (aTHX);	1006	coro_init_stacks (aTHX);
864		1007
865	PL_runops = RUNOPS_DEFAULT;	1008	PL_runops = RUNOPS_DEFAULT;
866	PL_curcop = &PL_compiling;	1009	PL_curcop = &PL_compiling;
867	PL_in_eval = EVAL_NULL;	1010	PL_in_eval = EVAL_NULL;
868	PL_comppad = 0;	1011	PL_comppad = 0;
		1012	PL_comppad_name = 0;
		1013	PL_comppad_name_fill = 0;
		1014	PL_comppad_name_floor = 0;
869	PL_curpm = 0;	1015	PL_curpm = 0;
870	PL_curpad = 0;	1016	PL_curpad = 0;
871	PL_localizing = 0;	1017	PL_localizing = 0;
872	PL_dirty = 0;	1018	PL_dirty = 0;
873	PL_restartop = 0;	1019	PL_restartop = 0;
874	#if PERL_VERSION_ATLEAST (5,10,0)	1020	#if PERL_VERSION_ATLEAST (5,10,0)
875	PL_parser = 0;	1021	PL_parser = 0;
876	#endif	1022	#endif
		1023	PL_hints = 0;
877		1024
878	/* recreate the die/warn hooks */	1025	/* recreate the die/warn hooks */
879	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	1026	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
880	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	1027	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
881		1028
882	GvSV (PL_defgv) = newSV (0);	1029	GvSV (PL_defgv) = newSV (0);
883	GvAV (PL_defgv) = coro->args; coro->args = 0;	1030	GvAV (PL_defgv) = coro->args; coro->args = 0;
884	GvSV (PL_errgv) = newSV (0);	1031	GvSV (PL_errgv) = newSV (0);
885	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	1032	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		1033	GvHV (PL_hintgv) = 0;
886	PL_rs = newSVsv (GvSV (irsgv));	1034	PL_rs = newSVsv (GvSV (irsgv));
887	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	1035	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
888		1036
889	{	1037	{
890	dSP;	1038	dSP;
…		…
907	*/	1055	*/
908	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	1056	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
909	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	1057	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
910		1058
911	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	1059	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
912	coro_setup_op.op_next = PL_op;	1060	init_perl_op.op_next = PL_op;
913	coro_setup_op.op_type = OP_ENTERSUB;	1061	init_perl_op.op_type = OP_ENTERSUB;
914	coro_setup_op.op_ppaddr = pp_slf;	1062	init_perl_op.op_ppaddr = pp_slf;
915	/* no flags etc. required, as an init function won't be called */	1063	/* no flags etc. required, as an init function won't be called */
916		1064
917	PL_op = (OP *)&coro_setup_op;	1065	PL_op = (OP *)&init_perl_op;
918		1066
919	/* copy throw, in case it was set before coro_setup */	1067	/* copy throw, in case it was set before init_perl */
920	CORO_THROW = coro->except;	1068	CORO_THROW = coro->except;
921	}
922		1069
		1070	SWAP_SVS (coro);
		1071
		1072	if (expect_false (enable_times))
		1073	{
		1074	coro_times_update ();
		1075	coro_times_sub (coro);
		1076	}
		1077	}
		1078
923	static void	1079	static void
924	coro_destruct (pTHX_ struct coro *coro)	1080	coro_unwind_stacks (pTHX)
925	{	1081	{
926	if (!IN_DESTRUCT)	1082	if (!IN_DESTRUCT)
927	{	1083	{
928	/* restore all saved variables and stuff */	1084	/* restore all saved variables and stuff */
929	LEAVE_SCOPE (0);	1085	LEAVE_SCOPE (0);
…		…
937	POPSTACK_TO (PL_mainstack);	1093	POPSTACK_TO (PL_mainstack);
938		1094
939	/* unwind main stack */	1095	/* unwind main stack */
940	dounwind (-1);	1096	dounwind (-1);
941	}	1097	}
		1098	}
942		1099
943	SvREFCNT_dec (GvSV (PL_defgv));	1100	static void
944	SvREFCNT_dec (GvAV (PL_defgv));	1101	destroy_perl (pTHX_ struct coro *coro)
945	SvREFCNT_dec (GvSV (PL_errgv));	1102	{
946	SvREFCNT_dec (PL_defoutgv);	1103	SV *svf [9];
947	SvREFCNT_dec (PL_rs);
948	SvREFCNT_dec (GvSV (irsgv));
949		1104
950	SvREFCNT_dec (PL_diehook);
951	SvREFCNT_dec (PL_warnhook);
952		1105	{
		1106	struct coro *current = SvSTATE_current;
		1107
		1108	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1109
		1110	save_perl (aTHX_ current);
		1111	load_perl (aTHX_ coro);
		1112
		1113	coro_unwind_stacks (aTHX);
		1114	coro_destruct_stacks (aTHX);
		1115
		1116	/* restore swapped sv's */
		1117	SWAP_SVS (coro);
		1118
		1119	// now save some sv's to be free'd later
		1120	svf [0] = GvSV (PL_defgv);
		1121	svf [1] = (SV *)GvAV (PL_defgv);
		1122	svf [2] = GvSV (PL_errgv);
		1123	svf [3] = (SV *)PL_defoutgv;
		1124	svf [4] = PL_rs;
		1125	svf [5] = GvSV (irsgv);
		1126	svf [6] = (SV *)GvHV (PL_hintgv);
		1127	svf [7] = PL_diehook;
		1128	svf [8] = PL_warnhook;
		1129	assert (9 == sizeof (svf) / sizeof (*svf));
		1130
		1131	load_perl (aTHX_ current);
		1132	}
		1133
		1134	{
		1135	unsigned int i;
		1136
		1137	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1138	SvREFCNT_dec (svf [i]);
		1139
953	SvREFCNT_dec (coro->saved_deffh);	1140	SvREFCNT_dec (coro->saved_deffh);
954	SvREFCNT_dec (coro->rouse_cb);	1141	SvREFCNT_dec (coro->rouse_cb);
955	SvREFCNT_dec (coro->invoke_cb);	1142	SvREFCNT_dec (coro->invoke_cb);
956	SvREFCNT_dec (coro->invoke_av);	1143	SvREFCNT_dec (coro->invoke_av);
957		1144	}
958	coro_destruct_stacks (aTHX);
959	}	1145	}
960		1146
961	INLINE void	1147	INLINE void
962	free_coro_mortal (pTHX)	1148	free_coro_mortal (pTHX)
963	{	1149	{
…		…
1160	/* somebody or something will hit me for both perl_run and PL_restartop */	1346	/* somebody or something will hit me for both perl_run and PL_restartop */
1161	PL_restartop = PL_op;	1347	PL_restartop = PL_op;
1162	perl_run (PL_curinterp);	1348	perl_run (PL_curinterp);
1163	/*	1349	/*
1164	* Unfortunately, there is no way to get at the return values of the	1350	* Unfortunately, there is no way to get at the return values of the
1165	* coro body here, as perl_run destroys these	1351	* coro body here, as perl_run destroys these. Likewise, we cannot catch
		1352	* runtime errors here, as this is just a random interpreter, not a thread.
1166	*/	1353	*/
1167		1354
1168	/*	1355	/*
1169	* If perl-run returns we assume exit() was being called or the coro	1356	* If perl-run returns we assume exit() was being called or the coro
1170	* fell off the end, which seems to be the only valid (non-bug)	1357	* fell off the end, which seems to be the only valid (non-bug)
1171	* reason for perl_run to return. We try to exit by jumping to the	1358	* reason for perl_run to return. We try to exit by jumping to the
1172	* bootstrap-time "top" top_env, as we cannot restore the "main"	1359	* bootstrap-time "top" top_env, as we cannot restore the "main"
1173	* coroutine as Coro has no such concept	1360	* coroutine as Coro has no such concept.
		1361	* This actually isn't valid with the pthread backend, but OSes requiring
		1362	* that backend are too broken to do it in a standards-compliant way.
1174	*/	1363	*/
1175	PL_top_env = main_top_env;	1364	PL_top_env = main_top_env;
1176	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1365	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1177	}	1366	}
1178	}	1367	}
…		…
1255	cctx_destroy (coro_cctx *cctx)	1444	cctx_destroy (coro_cctx *cctx)
1256	{	1445	{
1257	if (!cctx)	1446	if (!cctx)
1258	return;	1447	return;
1259		1448
1260	assert (cctx != cctx_current);//D temporary	1449	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1261		1450
1262	--cctx_count;	1451	--cctx_count;
1263	coro_destroy (&cctx->cctx);	1452	coro_destroy (&cctx->cctx);
1264		1453
1265	/* coro_transfer creates new, empty cctx's */	1454	/* coro_transfer creates new, empty cctx's */
…		…
1329	/* TODO: throwing up here is considered harmful */	1518	/* TODO: throwing up here is considered harmful */
1330		1519
1331	if (expect_true (prev != next))	1520	if (expect_true (prev != next))
1332	{	1521	{
1333	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1522	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1334	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");	1523	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1335		1524
1336	if (expect_false (next->flags & CF_RUNNING))
1337	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1338
1339	if (expect_false (next->flags & CF_DESTROYED))	1525	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1340	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1526	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1341		1527
1342	#if !PERL_VERSION_ATLEAST (5,10,0)	1528	#if !PERL_VERSION_ATLEAST (5,10,0)
1343	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1529	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1344	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1530	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1345	#endif	1531	#endif
…		…
1378	if (expect_false (next->flags & CF_NEW))	1564	if (expect_false (next->flags & CF_NEW))
1379	{	1565	{
1380	/* need to start coroutine */	1566	/* need to start coroutine */
1381	next->flags &= ~CF_NEW;	1567	next->flags &= ~CF_NEW;
1382	/* setup coroutine call */	1568	/* setup coroutine call */
1383	coro_setup (aTHX_ next);	1569	init_perl (aTHX_ next);
1384	}	1570	}
1385	else	1571	else
1386	load_perl (aTHX_ next);	1572	load_perl (aTHX_ next);
1387
1388	assert (!prev->cctx);//D temporary
1389		1573
1390	/* possibly untie and reuse the cctx */	1574	/* possibly untie and reuse the cctx */
1391	if (expect_true (	1575	if (expect_true (
1392	cctx_current->idle_sp == STACKLEVEL	1576	cctx_current->idle_sp == STACKLEVEL
1393	&& !(cctx_current->flags & CC_TRACE)	1577	&& !(cctx_current->flags & CC_TRACE)
…		…
1435	coro_state_destroy (pTHX_ struct coro *coro)	1619	coro_state_destroy (pTHX_ struct coro *coro)
1436	{	1620	{
1437	if (coro->flags & CF_DESTROYED)	1621	if (coro->flags & CF_DESTROYED)
1438	return 0;	1622	return 0;
1439		1623
1440	if (coro->on_destroy)	1624	if (coro->on_destroy && !PL_dirty)
1441	coro->on_destroy (aTHX_ coro);	1625	coro->on_destroy (aTHX_ coro);
1442		1626
1443	coro->flags |= CF_DESTROYED;	1627	coro->flags |= CF_DESTROYED;
1444		1628
1445	if (coro->flags & CF_READY)	1629	if (coro->flags & CF_READY)
…		…
1449	--coro_nready;	1633	--coro_nready;
1450	}	1634	}
1451	else	1635	else
1452	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1636	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1453		1637
1454	if (coro->mainstack && coro->mainstack != main_mainstack)	1638	if (coro->mainstack
1455	{	1639	&& coro->mainstack != main_mainstack
1456	struct coro temp;	1640	&& coro->slot
1457		1641	&& !PL_dirty)
1458	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1459
1460	save_perl (aTHX_ &temp);
1461	load_perl (aTHX_ coro);	1642	destroy_perl (aTHX_ coro);
1462		1643
1463	coro_destruct (aTHX_ coro);	1644	if (coro->next) coro->next->prev = coro->prev;
1464		1645	if (coro->prev) coro->prev->next = coro->next;
1465	load_perl (aTHX_ &temp);	1646	if (coro == coro_first) coro_first = coro->next;
1466
1467	coro->slot = 0;
1468	}
1469		1647
1470	cctx_destroy (coro->cctx);	1648	cctx_destroy (coro->cctx);
1471	SvREFCNT_dec (coro->startcv);	1649	SvREFCNT_dec (coro->startcv);
1472	SvREFCNT_dec (coro->args);	1650	SvREFCNT_dec (coro->args);
		1651	SvREFCNT_dec (coro->swap_sv);
1473	SvREFCNT_dec (CORO_THROW);	1652	SvREFCNT_dec (CORO_THROW);
1474
1475	if (coro->next) coro->next->prev = coro->prev;
1476	if (coro->prev) coro->prev->next = coro->next;
1477	if (coro == coro_first) coro_first = coro->next;
1478		1653
1479	return 1;	1654	return 1;
1480	}	1655	}
1481		1656
1482	static int	1657	static int
…		…
1532		1707
1533	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1708	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1534	TRANSFER (ta, 1);	1709	TRANSFER (ta, 1);
1535	}	1710	}
1536		1711
1537	/*****************************************************************************/
1538	/* gensub: simple closure generation utility */
1539
1540	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1541
1542	/* create a closure from XS, returns a code reference */
1543	/* the arg can be accessed via GENSUB_ARG from the callback */
1544	/* the callback must use dXSARGS/XSRETURN */
1545	static SV *
1546	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1547	{
1548	CV *cv = (CV *)newSV (0);
1549
1550	sv_upgrade ((SV *)cv, SVt_PVCV);
1551
1552	CvANON_on (cv);
1553	CvISXSUB_on (cv);
1554	CvXSUB (cv) = xsub;
1555	GENSUB_ARG = arg;
1556
1557	return newRV_noinc ((SV *)cv);
1558	}
1559
1560	/** Coro ********************************************************************/	1712	/** Coro ********************************************************************/
1561		1713
1562	INLINE void	1714	INLINE void
1563	coro_enq (pTHX_ struct coro *coro)	1715	coro_enq (pTHX_ struct coro *coro)
1564	{	1716	{
1565	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1717	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1566	}
1567		1718
1568	INLINE SV *	1719	SvREFCNT_inc_NN (coro->hv);
		1720
		1721	coro->next_ready = 0;
		1722	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1723	ready [1] = coro;
		1724	}
		1725
		1726	INLINE struct coro *
1569	coro_deq (pTHX)	1727	coro_deq (pTHX)
1570	{	1728	{
1571	int prio;	1729	int prio;
1572		1730
1573	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1731	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1574	if (AvFILLp (coro_ready [prio]) >= 0)	1732	{
1575	return av_shift (coro_ready [prio]);	1733	struct coro **ready = coro_ready [prio];
		1734
		1735	if (ready [0])
		1736	{
		1737	struct coro *coro = ready [0];
		1738	ready [0] = coro->next_ready;
		1739	return coro;
		1740	}
		1741	}
1576		1742
1577	return 0;	1743	return 0;
		1744	}
		1745
		1746	static void
		1747	invoke_sv_ready_hook_helper (void)
		1748	{
		1749	dTHX;
		1750	dSP;
		1751
		1752	ENTER;
		1753	SAVETMPS;
		1754
		1755	PUSHMARK (SP);
		1756	PUTBACK;
		1757	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1758
		1759	FREETMPS;
		1760	LEAVE;
1578	}	1761	}
1579		1762
1580	static int	1763	static int
1581	api_ready (pTHX_ SV *coro_sv)	1764	api_ready (pTHX_ SV *coro_sv)
1582	{	1765	{
1583	struct coro *coro;
1584	SV *sv_hook;
1585	void (*xs_hook)(void);
1586
1587	if (SvROK (coro_sv))
1588	coro_sv = SvRV (coro_sv);
1589
1590	coro = SvSTATE (coro_sv);	1766	struct coro *coro = SvSTATE (coro_sv);
1591		1767
1592	if (coro->flags & CF_READY)	1768	if (coro->flags & CF_READY)
1593	return 0;	1769	return 0;
1594		1770
1595	coro->flags |= CF_READY;	1771	coro->flags |= CF_READY;
1596		1772
1597	sv_hook = coro_nready ? 0 : coro_readyhook;
1598	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1599
1600	coro_enq (aTHX_ coro);	1773	coro_enq (aTHX_ coro);
1601	++coro_nready;
1602		1774
1603	if (sv_hook)	1775	if (!coro_nready++)
1604	{	1776	if (coroapi.readyhook)
1605	dSP;	1777	coroapi.readyhook ();
1606
1607	ENTER;
1608	SAVETMPS;
1609
1610	PUSHMARK (SP);
1611	PUTBACK;
1612	call_sv (sv_hook, G_VOID | G_DISCARD);
1613
1614	FREETMPS;
1615	LEAVE;
1616	}
1617
1618	if (xs_hook)
1619	xs_hook ();
1620		1778
1621	return 1;	1779	return 1;
1622	}	1780	}
1623		1781
1624	static int	1782	static int
…		…
1647	static void	1805	static void
1648	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1806	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1649	{	1807	{
1650	for (;;)	1808	for (;;)
1651	{	1809	{
1652	SV *next_sv = coro_deq (aTHX);	1810	struct coro *next = coro_deq (aTHX);
1653		1811
1654	if (expect_true (next_sv))	1812	if (expect_true (next))
1655	{	1813	{
1656	struct coro *next = SvSTATE_hv (next_sv);
1657
1658	/* cannot transfer to destroyed coros, skip and look for next */	1814	/* cannot transfer to destroyed coros, skip and look for next */
1659	if (expect_false (next->flags & CF_DESTROYED))	1815	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1660	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1816	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1661	else	1817	else
1662	{	1818	{
1663	next->flags &= ~CF_READY;	1819	next->flags &= ~CF_READY;
1664	--coro_nready;	1820	--coro_nready;
1665		1821
…		…
1668	}	1824	}
1669	}	1825	}
1670	else	1826	else
1671	{	1827	{
1672	/* nothing to schedule: call the idle handler */	1828	/* nothing to schedule: call the idle handler */
		1829	if (SvROK (sv_idle)
		1830	&& SvOBJECT (SvRV (sv_idle)))
		1831	{
		1832	if (SvRV (sv_idle) == SvRV (coro_current))
		1833	croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
		1834
		1835	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1836	api_ready (aTHX_ SvRV (sv_idle));
		1837	--coro_nready;
		1838	}
		1839	else
		1840	{
		1841	/* TODO: deprecated, remove, cannot work reliably *//*D*/
1673	dSP;	1842	dSP;
1674		1843
1675	ENTER;	1844	ENTER;
1676	SAVETMPS;	1845	SAVETMPS;
1677		1846
1678	PUSHMARK (SP);	1847	PUSHMARK (SP);
1679	PUTBACK;	1848	PUTBACK;
1680	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);	1849	call_sv (sv_idle, G_VOID | G_DISCARD);
1681		1850
1682	FREETMPS;	1851	FREETMPS;
1683	LEAVE;	1852	LEAVE;
		1853	}
1684	}	1854	}
1685	}	1855	}
1686	}	1856	}
1687		1857
1688	INLINE void	1858	INLINE void
…		…
1822	{	1992	{
1823	int i;	1993	int i;
1824	HV *hv = (HV *)SvRV (coro_current);	1994	HV *hv = (HV *)SvRV (coro_current);
1825	AV *av = newAV ();	1995	AV *av = newAV ();
1826		1996
		1997	/* items are actually not so common, so optimise for this case */
		1998	if (items)
		1999	{
1827	av_extend (av, items - 1);	2000	av_extend (av, items - 1);
		2001
1828	for (i = 0; i < items; ++i)	2002	for (i = 0; i < items; ++i)
1829	av_push (av, SvREFCNT_inc_NN (arg [i]));	2003	av_push (av, SvREFCNT_inc_NN (arg [i]));
		2004	}
1830		2005
1831	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);	2006	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1832		2007
1833	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	2008	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1834	api_ready (aTHX_ sv_manager);	2009	api_ready (aTHX_ sv_manager);
1835		2010
1836	frame->prepare = prepare_schedule;	2011	frame->prepare = prepare_schedule;
1837	frame->check = slf_check_repeat;	2012	frame->check = slf_check_repeat;
		2013
		2014	/* as a minor optimisation, we could unwind all stacks here */
		2015	/* but that puts extra pressure on pp_slf, and is not worth much */
		2016	/*coro_unwind_stacks (aTHX);*/
1838	}	2017	}
1839		2018
1840	/*****************************************************************************/	2019	/*****************************************************************************/
1841	/* async pool handler */	2020	/* async pool handler */
1842		2021
…		…
1920		2099
1921	static void	2100	static void
1922	coro_rouse_callback (pTHX_ CV *cv)	2101	coro_rouse_callback (pTHX_ CV *cv)
1923	{	2102	{
1924	dXSARGS;	2103	dXSARGS;
1925	SV *data = (SV *)GENSUB_ARG;	2104	SV *data = (SV *)S_GENSUB_ARG;
1926		2105
1927	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2106	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1928	{	2107	{
1929	/* first call, set args */	2108	/* first call, set args */
		2109	SV *coro = SvRV (data);
1930	AV *av = newAV ();	2110	AV *av = newAV ();
1931	SV *coro = SvRV (data);
1932		2111
1933	SvRV_set (data, (SV *)av);	2112	SvRV_set (data, (SV *)av);
1934	api_ready (aTHX_ coro);
1935	SvREFCNT_dec (coro);
1936		2113
1937	/* better take a full copy of the arguments */	2114	/* better take a full copy of the arguments */
1938	while (items--)	2115	while (items--)
1939	av_store (av, items, newSVsv (ST (items)));	2116	av_store (av, items, newSVsv (ST (items)));
		2117
		2118	api_ready (aTHX_ coro);
		2119	SvREFCNT_dec (coro);
1940	}	2120	}
1941		2121
1942	XSRETURN_EMPTY;	2122	XSRETURN_EMPTY;
1943	}	2123	}
1944		2124
…		…
1961		2141
1962	EXTEND (SP, AvFILLp (av) + 1);	2142	EXTEND (SP, AvFILLp (av) + 1);
1963	for (i = 0; i <= AvFILLp (av); ++i)	2143	for (i = 0; i <= AvFILLp (av); ++i)
1964	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2144	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1965		2145
1966	/* we have stolen the elements, so ste length to zero and free */	2146	/* we have stolen the elements, so set length to zero and free */
1967	AvFILLp (av) = -1;	2147	AvFILLp (av) = -1;
1968	av_undef (av);	2148	av_undef (av);
1969		2149
1970	PUTBACK;	2150	PUTBACK;
1971	}	2151	}
…		…
1995	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2175	|| SvTYPE (SvRV (cb)) != SVt_PVCV
1996	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2176	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1997	croak ("Coro::rouse_wait called with illegal callback argument,");	2177	croak ("Coro::rouse_wait called with illegal callback argument,");
1998		2178
1999	{	2179	{
2000	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2180	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2001	SV *data = (SV *)GENSUB_ARG;	2181	SV *data = (SV *)S_GENSUB_ARG;
2002		2182
2003	frame->data = (void *)data;	2183	frame->data = (void *)data;
2004	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2184	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2005	frame->check = slf_check_rouse_wait;	2185	frame->check = slf_check_rouse_wait;
2006	}	2186	}
…		…
2010	coro_new_rouse_cb (pTHX)	2190	coro_new_rouse_cb (pTHX)
2011	{	2191	{
2012	HV *hv = (HV *)SvRV (coro_current);	2192	HV *hv = (HV *)SvRV (coro_current);
2013	struct coro *coro = SvSTATE_hv (hv);	2193	struct coro *coro = SvSTATE_hv (hv);
2014	SV *data = newRV_inc ((SV *)hv);	2194	SV *data = newRV_inc ((SV *)hv);
2015	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2195	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2016		2196
2017	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2197	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2018	SvREFCNT_dec (data); /* magicext increases the refcount */	2198	SvREFCNT_dec (data); /* magicext increases the refcount */
2019		2199
2020	SvREFCNT_dec (coro->rouse_cb);	2200	SvREFCNT_dec (coro->rouse_cb);
…		…
2245	if (PL_op->op_flags & OPf_STACKED)	2425	if (PL_op->op_flags & OPf_STACKED)
2246	{	2426	{
2247	if (items > slf_arga)	2427	if (items > slf_arga)
2248	{	2428	{
2249	slf_arga = items;	2429	slf_arga = items;
2250	free (slf_argv);	2430	Safefree (slf_argv);
2251	slf_argv = malloc (slf_arga * sizeof (SV *));	2431	New (0, slf_argv, slf_arga, SV *);
2252	}	2432	}
2253		2433
2254	slf_argc = items;	2434	slf_argc = items;
2255		2435
2256	for (i = 0; i < items; ++i)	2436	for (i = 0; i < items; ++i)
…		…
2261		2441
2262	PL_op->op_ppaddr = pp_slf;	2442	PL_op->op_ppaddr = pp_slf;
2263	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2443	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2264		2444
2265	PL_op = (OP *)&slf_restore;	2445	PL_op = (OP *)&slf_restore;
		2446	}
		2447
		2448	/*****************************************************************************/
		2449	/* dynamic wind */
		2450
		2451	static void
		2452	on_enterleave_call (pTHX_ SV *cb)
		2453	{
		2454	dSP;
		2455
		2456	PUSHSTACK;
		2457
		2458	PUSHMARK (SP);
		2459	PUTBACK;
		2460	call_sv (cb, G_VOID | G_DISCARD);
		2461	SPAGAIN;
		2462
		2463	POPSTACK;
		2464	}
		2465
		2466	static SV *
		2467	coro_avp_pop_and_free (pTHX_ AV **avp)
		2468	{
		2469	AV *av = *avp;
		2470	SV *res = av_pop (av);
		2471
		2472	if (AvFILLp (av) < 0)
		2473	{
		2474	*avp = 0;
		2475	SvREFCNT_dec (av);
		2476	}
		2477
		2478	return res;
		2479	}
		2480
		2481	static void
		2482	coro_pop_on_enter (pTHX_ void *coro)
		2483	{
		2484	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2485	SvREFCNT_dec (cb);
		2486	}
		2487
		2488	static void
		2489	coro_pop_on_leave (pTHX_ void *coro)
		2490	{
		2491	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2492	on_enterleave_call (aTHX_ sv_2mortal (cb));
2266	}	2493	}
2267		2494
2268	/*****************************************************************************/	2495	/*****************************************************************************/
2269	/* PerlIO::cede */	2496	/* PerlIO::cede */
2270		2497
…		…
2344	/* Coro::Semaphore & Coro::Signal */	2571	/* Coro::Semaphore & Coro::Signal */
2345		2572
2346	static SV *	2573	static SV *
2347	coro_waitarray_new (pTHX_ int count)	2574	coro_waitarray_new (pTHX_ int count)
2348	{	2575	{
2349	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2576	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2350	AV *av = newAV ();	2577	AV *av = newAV ();
2351	SV **ary;	2578	SV **ary;
2352		2579
2353	/* unfortunately, building manually saves memory */	2580	/* unfortunately, building manually saves memory */
2354	Newx (ary, 2, SV *);	2581	Newx (ary, 2, SV *);
2355	AvALLOC (av) = ary;	2582	AvALLOC (av) = ary;
		2583	#if PERL_VERSION_ATLEAST (5,10,0)
2356	/*AvARRAY (av) = ary;*/	2584	AvARRAY (av) = ary;
		2585	#else
2357	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2586	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2587	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2588	SvPVX ((SV *)av) = (char *)ary;
		2589	#endif
2358	AvMAX (av) = 1;	2590	AvMAX (av) = 1;
2359	AvFILLp (av) = 0;	2591	AvFILLp (av) = 0;
2360	ary [0] = newSViv (count);	2592	ary [0] = newSViv (count);
2361		2593
2362	return newRV_noinc ((SV *)av);	2594	return newRV_noinc ((SV *)av);
…		…
2491	{	2723	{
2492	if (items >= 2)	2724	if (items >= 2)
2493	{	2725	{
2494	/* callback form */	2726	/* callback form */
2495	AV *av = (AV *)SvRV (arg [0]);	2727	AV *av = (AV *)SvRV (arg [0]);
2496	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2728	SV *cb_cv = s_get_cv_croak (arg [1]);
2497		2729
2498	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2730	av_push (av, SvREFCNT_inc_NN (cb_cv));
2499		2731
2500	if (SvIVX (AvARRAY (av)[0]) > 0)	2732	if (SvIVX (AvARRAY (av)[0]) > 0)
2501	coro_semaphore_adjust (aTHX_ av, 0);	2733	coro_semaphore_adjust (aTHX_ av, 0);
2502		2734
2503	frame->prepare = prepare_nop;	2735	frame->prepare = prepare_nop;
…		…
2527	AvARRAY (av)[0] = AvARRAY (av)[1];	2759	AvARRAY (av)[0] = AvARRAY (av)[1];
2528	AvARRAY (av)[1] = cb;	2760	AvARRAY (av)[1] = cb;
2529		2761
2530	cb = av_shift (av);	2762	cb = av_shift (av);
2531		2763
		2764	if (SvTYPE (cb) == SVt_PVCV)
		2765	{
		2766	dSP;
		2767	PUSHMARK (SP);
		2768	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2769	PUTBACK;
		2770	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2771	}
		2772	else
		2773	{
2532	api_ready (aTHX_ cb);	2774	api_ready (aTHX_ cb);
2533	sv_setiv (cb, 0); /* signal waiter */	2775	sv_setiv (cb, 0); /* signal waiter */
		2776	}
		2777
2534	SvREFCNT_dec (cb);	2778	SvREFCNT_dec (cb);
2535		2779
2536	--count;	2780	--count;
2537	}	2781	}
2538	}	2782	}
…		…
2547	static void	2791	static void
2548	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2792	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2549	{	2793	{
2550	AV *av = (AV *)SvRV (arg [0]);	2794	AV *av = (AV *)SvRV (arg [0]);
2551		2795
		2796	if (items >= 2)
		2797	{
		2798	SV *cb_cv = s_get_cv_croak (arg [1]);
		2799	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2800
2552	if (SvIVX (AvARRAY (av)[0]))	2801	if (SvIVX (AvARRAY (av)[0]))
		2802	coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
		2803
		2804	frame->prepare = prepare_nop;
		2805	frame->check = slf_check_nop;
		2806	}
		2807	else if (SvIVX (AvARRAY (av)[0]))
2553	{	2808	{
2554	SvIVX (AvARRAY (av)[0]) = 0;	2809	SvIVX (AvARRAY (av)[0]) = 0;
2555	frame->prepare = prepare_nop;	2810	frame->prepare = prepare_nop;
2556	frame->check = slf_check_nop;	2811	frame->check = slf_check_nop;
2557	}	2812	}
2558	else	2813	else
2559	{	2814	{
2560	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2815	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2561		2816
2562	av_push (av, waiter);	2817	av_push (av, waiter);
2563		2818
2564	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2819	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2565	frame->prepare = prepare_schedule;	2820	frame->prepare = prepare_schedule;
…		…
2583		2838
2584	static void	2839	static void
2585	coro_aio_callback (pTHX_ CV *cv)	2840	coro_aio_callback (pTHX_ CV *cv)
2586	{	2841	{
2587	dXSARGS;	2842	dXSARGS;
2588	AV *state = (AV *)GENSUB_ARG;	2843	AV *state = (AV *)S_GENSUB_ARG;
2589	SV *coro = av_pop (state);	2844	SV *coro = av_pop (state);
2590	SV *data_sv = newSV (sizeof (struct io_state));	2845	SV *data_sv = newSV (sizeof (struct io_state));
2591		2846
2592	av_extend (state, items - 1);	2847	av_extend (state, items - 1);
2593		2848
…		…
2707		2962
2708	for (i = 0; i < items; ++i)	2963	for (i = 0; i < items; ++i)
2709	PUSHs (arg [i]);	2964	PUSHs (arg [i]);
2710		2965
2711	/* now push the callback closure */	2966	/* now push the callback closure */
2712	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	2967	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2713		2968
2714	/* now call the AIO function - we assume our request is uncancelable */	2969	/* now call the AIO function - we assume our request is uncancelable */
2715	PUTBACK;	2970	PUTBACK;
2716	call_sv ((SV *)req, G_VOID | G_DISCARD);	2971	call_sv ((SV *)req, G_VOID | G_DISCARD);
2717	}	2972	}
2718		2973
2719	/* now that the requets is going, we loop toll we have a result */	2974	/* now that the request is going, we loop till we have a result */
2720	frame->data = (void *)state;	2975	frame->data = (void *)state;
2721	frame->prepare = prepare_schedule;	2976	frame->prepare = prepare_schedule;
2722	frame->check = slf_check_aio_req;	2977	frame->check = slf_check_aio_req;
2723	}	2978	}
2724		2979
…		…
2735	/*****************************************************************************/	2990	/*****************************************************************************/
2736		2991
2737	#if CORO_CLONE	2992	#if CORO_CLONE
2738	# include "clone.c"	2993	# include "clone.c"
2739	#endif	2994	#endif
		2995
		2996	/*****************************************************************************/
		2997
		2998	static SV *
		2999	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		3000	{
		3001	SV *coro_sv;
		3002	struct coro *coro;
		3003	MAGIC *mg;
		3004	HV *hv;
		3005	SV *cb;
		3006	int i;
		3007
		3008	if (argc > 0)
		3009	{
		3010	cb = s_get_cv_croak (argv [0]);
		3011
		3012	if (!is_coro)
		3013	{
		3014	if (CvISXSUB (cb))
		3015	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		3016
		3017	if (!CvROOT (cb))
		3018	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		3019	}
		3020	}
		3021
		3022	Newz (0, coro, 1, struct coro);
		3023	coro->args = newAV ();
		3024	coro->flags = CF_NEW;
		3025
		3026	if (coro_first) coro_first->prev = coro;
		3027	coro->next = coro_first;
		3028	coro_first = coro;
		3029
		3030	coro->hv = hv = newHV ();
		3031	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		3032	mg->mg_flags |= MGf_DUP;
		3033	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		3034
		3035	if (argc > 0)
		3036	{
		3037	av_extend (coro->args, argc + is_coro - 1);
		3038
		3039	if (is_coro)
		3040	{
		3041	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		3042	cb = (SV *)cv_coro_run;
		3043	}
		3044
		3045	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		3046
		3047	for (i = 1; i < argc; i++)
		3048	av_push (coro->args, newSVsv (argv [i]));
		3049	}
		3050
		3051	return coro_sv;
		3052	}
2740		3053
2741	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	3054	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2742		3055
2743	PROTOTYPES: DISABLE	3056	PROTOTYPES: DISABLE
2744		3057
…		…
2804		3117
2805	if (!svp) croak ("Time::HiRes is required");	3118	if (!svp) croak ("Time::HiRes is required");
2806	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	3119	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2807		3120
2808	nvtime = INT2PTR (double (*)(), SvIV (*svp));	3121	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		3122
		3123	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		3124	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2809	}	3125	}
2810		3126
2811	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	3127	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2812	}	3128	}
2813		3129
2814	SV *	3130	SV *
2815	new (char *klass, ...)	3131	new (SV *klass, ...)
2816	ALIAS:	3132	ALIAS:
2817	Coro::new = 1	3133	Coro::new = 1
2818	CODE:	3134	CODE:
2819	{	3135	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2820	struct coro *coro;	3136	OUTPUT:
2821	MAGIC *mg;
2822	HV *hv;
2823	CV *cb;
2824	int i;
2825
2826	if (items > 1)
2827	{
2828	cb = coro_sv_2cv (aTHX_ ST (1));
2829
2830	if (!ix)
2831	{
2832	if (CvISXSUB (cb))
2833	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2834
2835	if (!CvROOT (cb))
2836	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2837	}
2838	}
2839
2840	Newz (0, coro, 1, struct coro);
2841	coro->args = newAV ();
2842	coro->flags = CF_NEW;
2843
2844	if (coro_first) coro_first->prev = coro;
2845	coro->next = coro_first;
2846	coro_first = coro;
2847
2848	coro->hv = hv = newHV ();
2849	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2850	mg->mg_flags |= MGf_DUP;
2851	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2852
2853	if (items > 1)
2854	{
2855	av_extend (coro->args, items - 1 + ix - 1);
2856
2857	if (ix)
2858	{
2859	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2860	cb = cv_coro_run;
2861	}
2862
2863	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2864
2865	for (i = 2; i < items; i++)
2866	av_push (coro->args, newSVsv (ST (i)));
2867	}
2868	}
2869	OUTPUT:
2870	RETVAL	3137	RETVAL
2871		3138
2872	void	3139	void
2873	transfer (...)	3140	transfer (...)
2874	PROTOTYPE: $$	3141	PROTOTYPE: $$
…		…
2891	SV *	3158	SV *
2892	clone (Coro::State coro)	3159	clone (Coro::State coro)
2893	CODE:	3160	CODE:
2894	{	3161	{
2895	#if CORO_CLONE	3162	#if CORO_CLONE
2896	struct coro *ncoro = coro_clone (coro);	3163	struct coro *ncoro = coro_clone (aTHX_ coro);
2897	MAGIC *mg;	3164	MAGIC *mg;
2898	/* TODO: too much duplication */	3165	/* TODO: too much duplication */
2899	ncoro->hv = newHV ();	3166	ncoro->hv = newHV ();
2900	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);	3167	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2901	mg->mg_flags |= MGf_DUP;	3168	mg->mg_flags |= MGf_DUP;
…		…
2963	eval = 1	3230	eval = 1
2964	CODE:	3231	CODE:
2965	{	3232	{
2966	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3233	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2967	{	3234	{
2968	struct coro temp;	3235	struct coro *current = SvSTATE_current;
2969		3236
2970	if (!(coro->flags & CF_RUNNING))	3237	if (current != coro)
2971	{	3238	{
2972	PUTBACK;	3239	PUTBACK;
2973	save_perl (aTHX_ &temp);	3240	save_perl (aTHX_ current);
2974	load_perl (aTHX_ coro);	3241	load_perl (aTHX_ coro);
		3242	SPAGAIN;
2975	}	3243	}
2976		3244
2977	{
2978	dSP;
2979	ENTER;
2980	SAVETMPS;
2981	PUTBACK;
2982	PUSHSTACK;	3245	PUSHSTACK;
		3246
2983	PUSHMARK (SP);	3247	PUSHMARK (SP);
		3248	PUTBACK;
2984		3249
2985	if (ix)	3250	if (ix)
2986	eval_sv (coderef, 0);	3251	eval_sv (coderef, 0);
2987	else	3252	else
2988	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3253	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2989		3254
2990	POPSTACK;	3255	POPSTACK;
2991	SPAGAIN;	3256	SPAGAIN;
2992	FREETMPS;
2993	LEAVE;
2994	PUTBACK;
2995	}
2996		3257
2997	if (!(coro->flags & CF_RUNNING))	3258	if (current != coro)
2998	{	3259	{
		3260	PUTBACK;
2999	save_perl (aTHX_ coro);	3261	save_perl (aTHX_ coro);
3000	load_perl (aTHX_ &temp);	3262	load_perl (aTHX_ current);
3001	SPAGAIN;	3263	SPAGAIN;
3002	}	3264	}
3003	}	3265	}
3004	}	3266	}
3005		3267
…		…
3009	ALIAS:	3271	ALIAS:
3010	is_ready = CF_READY	3272	is_ready = CF_READY
3011	is_running = CF_RUNNING	3273	is_running = CF_RUNNING
3012	is_new = CF_NEW	3274	is_new = CF_NEW
3013	is_destroyed = CF_DESTROYED	3275	is_destroyed = CF_DESTROYED
		3276	is_suspended = CF_SUSPENDED
3014	CODE:	3277	CODE:
3015	RETVAL = boolSV (coro->flags & ix);	3278	RETVAL = boolSV (coro->flags & ix);
3016	OUTPUT:	3279	OUTPUT:
3017	RETVAL	3280	RETVAL
3018		3281
3019	void	3282	void
3020	throw (Coro::State self, SV *throw = &PL_sv_undef)	3283	throw (Coro::State self, SV *exception = &PL_sv_undef)
3021	PROTOTYPE: $;$	3284	PROTOTYPE: $;$
3022	CODE:	3285	CODE:
3023	{	3286	{
3024	struct coro *current = SvSTATE_current;	3287	struct coro *current = SvSTATE_current;
3025	SV **throwp = self == current ? &CORO_THROW : &self->except;	3288	SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3026	SvREFCNT_dec (*throwp);	3289	SvREFCNT_dec (*exceptionp);
3027	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3290	SvGETMAGIC (exception);
		3291	*exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3028	}	3292	}
3029		3293
3030	void	3294	void
3031	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3295	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3032	PROTOTYPE: $;$	3296	PROTOTYPE: $;$
…		…
3083	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3347	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3084		3348
3085	SV *tmp = *src; *src = *dst; *dst = tmp;	3349	SV *tmp = *src; *src = *dst; *dst = tmp;
3086	}	3350	}
3087		3351
		3352	void
		3353	cancel (Coro::State self)
		3354	CODE:
		3355	coro_state_destroy (aTHX_ self);
		3356	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3357
		3358
		3359	SV *
		3360	enable_times (int enabled = enable_times)
		3361	CODE:
		3362	{
		3363	RETVAL = boolSV (enable_times);
		3364
		3365	if (enabled != enable_times)
		3366	{
		3367	enable_times = enabled;
		3368
		3369	coro_times_update ();
		3370	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3371	}
		3372	}
		3373	OUTPUT:
		3374	RETVAL
		3375
		3376	void
		3377	times (Coro::State self)
		3378	PPCODE:
		3379	{
		3380	struct coro *current = SvSTATE (coro_current);
		3381
		3382	if (expect_false (current == self))
		3383	{
		3384	coro_times_update ();
		3385	coro_times_add (SvSTATE (coro_current));
		3386	}
		3387
		3388	EXTEND (SP, 2);
		3389	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3390	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3391
		3392	if (expect_false (current == self))
		3393	coro_times_sub (SvSTATE (coro_current));
		3394	}
		3395
		3396	void
		3397	swap_sv (Coro::State coro, SV *sv, SV *swapsv)
		3398	CODE:
		3399	{
		3400	struct coro *current = SvSTATE_current;
		3401
		3402	if (current == coro)
		3403	SWAP_SVS (current);
		3404
		3405	if (!coro->swap_sv)
		3406	coro->swap_sv = newAV ();
		3407
		3408	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
		3409	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
		3410
		3411	if (current == coro)
		3412	SWAP_SVS (current);
		3413	}
		3414
3088		3415
3089	MODULE = Coro::State PACKAGE = Coro	3416	MODULE = Coro::State PACKAGE = Coro
3090		3417
3091	BOOT:	3418	BOOT:
3092	{	3419	{
3093	int i;
3094
3095	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3420	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3096	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3421	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3097	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3422	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3098	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3423	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3099	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3424	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3100	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3425	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3101	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3426	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3102	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3427	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3428	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3103		3429
3104	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3430	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3105	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3431	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3106	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3432	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3107	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3433	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3108		3434
3109	coro_stash = gv_stashpv ("Coro", TRUE);	3435	coro_stash = gv_stashpv ("Coro", TRUE);
3110		3436
3111	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3437	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3112	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3438	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3113	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3439	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3114	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3440	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3115	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3441	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3116	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3442	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3117
3118	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3119	coro_ready[i] = newAV ();
3120		3443
3121	{	3444	{
3122	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3445	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3123		3446
3124	coroapi.schedule = api_schedule;	3447	coroapi.schedule = api_schedule;
…		…
3134	sv_setiv (sv, (IV)&coroapi);	3457	sv_setiv (sv, (IV)&coroapi);
3135	SvREADONLY_on (sv);	3458	SvREADONLY_on (sv);
3136	}	3459	}
3137	}	3460	}
3138		3461
		3462	SV *
		3463	async (...)
		3464	PROTOTYPE: &@
		3465	CODE:
		3466	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3467	api_ready (aTHX_ RETVAL);
		3468	OUTPUT:
		3469	RETVAL
		3470
3139	void	3471	void
3140	terminate (...)	3472	terminate (...)
3141	CODE:	3473	CODE:
3142	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3474	CORO_EXECUTE_SLF_XS (slf_init_terminate);
3143		3475
…		…
3163		3495
3164	void	3496	void
3165	cede_notself (...)	3497	cede_notself (...)
3166	CODE:	3498	CODE:
3167	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3499	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3168
3169	void
3170	_cancel (Coro::State self)
3171	CODE:
3172	coro_state_destroy (aTHX_ self);
3173	coro_call_on_destroy (aTHX_ self);
3174		3500
3175	void	3501	void
3176	_set_current (SV *current)	3502	_set_current (SV *current)
3177	PROTOTYPE: $	3503	PROTOTYPE: $
3178	CODE:	3504	CODE:
…		…
3182	void	3508	void
3183	_set_readyhook (SV *hook)	3509	_set_readyhook (SV *hook)
3184	PROTOTYPE: $	3510	PROTOTYPE: $
3185	CODE:	3511	CODE:
3186	SvREFCNT_dec (coro_readyhook);	3512	SvREFCNT_dec (coro_readyhook);
		3513	SvGETMAGIC (hook);
		3514	if (SvOK (hook))
		3515	{
3187	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3516	coro_readyhook = newSVsv (hook);
		3517	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3518	}
		3519	else
		3520	{
		3521	coro_readyhook = 0;
		3522	CORO_READYHOOK = 0;
		3523	}
3188		3524
3189	int	3525	int
3190	prio (Coro::State coro, int newprio = 0)	3526	prio (Coro::State coro, int newprio = 0)
3191	PROTOTYPE: $;$	3527	PROTOTYPE: $;$
3192	ALIAS:	3528	ALIAS:
…		…
3198	if (items > 1)	3534	if (items > 1)
3199	{	3535	{
3200	if (ix)	3536	if (ix)
3201	newprio = coro->prio - newprio;	3537	newprio = coro->prio - newprio;
3202		3538
3203	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3539	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3204	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3540	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3205		3541
3206	coro->prio = newprio;	3542	coro->prio = newprio;
3207	}	3543	}
3208	}	3544	}
3209	OUTPUT:	3545	OUTPUT:
…		…
3224	RETVAL = coro_nready;	3560	RETVAL = coro_nready;
3225	OUTPUT:	3561	OUTPUT:
3226	RETVAL	3562	RETVAL
3227		3563
3228	void	3564	void
		3565	suspend (Coro::State self)
		3566	PROTOTYPE: $
		3567	CODE:
		3568	self->flags |= CF_SUSPENDED;
		3569
		3570	void
		3571	resume (Coro::State self)
		3572	PROTOTYPE: $
		3573	CODE:
		3574	self->flags &= ~CF_SUSPENDED;
		3575
		3576	void
3229	_pool_handler (...)	3577	_pool_handler (...)
3230	CODE:	3578	CODE:
3231	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3579	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3232		3580
3233	void	3581	void
…		…
3244	for (i = 1; i < items; ++i)	3592	for (i = 1; i < items; ++i)
3245	av_push (av, SvREFCNT_inc_NN (ST (i)));	3593	av_push (av, SvREFCNT_inc_NN (ST (i)));
3246		3594
3247	if ((SV *)hv == &PL_sv_undef)	3595	if ((SV *)hv == &PL_sv_undef)
3248	{	3596	{
3249	PUSHMARK (SP);	3597	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3250	EXTEND (SP, 2);
3251	PUSHs (sv_Coro);
3252	PUSHs ((SV *)cv_pool_handler);
3253	PUTBACK;
3254	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3255	SPAGAIN;
3256
3257	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3598	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3599	SvREFCNT_dec (sv);
3258	}	3600	}
3259		3601
3260	{	3602	{
3261	struct coro *coro = SvSTATE_hv (hv);	3603	struct coro *coro = SvSTATE_hv (hv);
3262		3604
…		…
3286	rouse_wait (...)	3628	rouse_wait (...)
3287	PROTOTYPE: ;$	3629	PROTOTYPE: ;$
3288	PPCODE:	3630	PPCODE:
3289	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3631	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3290		3632
		3633	void
		3634	on_enter (SV *block)
		3635	ALIAS:
		3636	on_leave = 1
		3637	PROTOTYPE: &
		3638	CODE:
		3639	{
		3640	struct coro *coro = SvSTATE_current;
		3641	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3642
		3643	block = s_get_cv_croak (block);
		3644
		3645	if (!*avp)
		3646	*avp = newAV ();
		3647
		3648	av_push (*avp, SvREFCNT_inc (block));
		3649
		3650	if (!ix)
		3651	on_enterleave_call (aTHX_ block);
		3652
		3653	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3654	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3655	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3656	}
		3657
3291		3658
3292	MODULE = Coro::State PACKAGE = PerlIO::cede	3659	MODULE = Coro::State PACKAGE = PerlIO::cede
3293		3660
3294	BOOT:	3661	BOOT:
3295	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3662	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3298	MODULE = Coro::State PACKAGE = Coro::Semaphore	3665	MODULE = Coro::State PACKAGE = Coro::Semaphore
3299		3666
3300	SV *	3667	SV *
3301	new (SV *klass, SV *count = 0)	3668	new (SV *klass, SV *count = 0)
3302	CODE:	3669	CODE:
		3670	{
		3671	int semcnt = 1;
		3672
		3673	if (count)
		3674	{
		3675	SvGETMAGIC (count);
		3676
		3677	if (SvOK (count))
		3678	semcnt = SvIV (count);
		3679	}
		3680
3303	RETVAL = sv_bless (	3681	RETVAL = sv_bless (
3304	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3682	coro_waitarray_new (aTHX_ semcnt),
3305	GvSTASH (CvGV (cv))	3683	GvSTASH (CvGV (cv))
3306	);	3684	);
		3685	}
3307	OUTPUT:	3686	OUTPUT:
3308	RETVAL	3687	RETVAL
3309		3688
3310	# helper for Coro::Channel	3689	# helper for Coro::Channel and others
3311	SV *	3690	SV *
3312	_alloc (int count)	3691	_alloc (int count)
3313	CODE:	3692	CODE:
3314	RETVAL = coro_waitarray_new (aTHX_ count);	3693	RETVAL = coro_waitarray_new (aTHX_ count);
3315	OUTPUT:	3694	OUTPUT:
…		…
3373	for (i = 1; i <= wcount; ++i)	3752	for (i = 1; i <= wcount; ++i)
3374	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3753	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3375	}	3754	}
3376	}	3755	}
3377		3756
		3757	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3758
		3759	void
		3760	_may_delete (SV *sem, int count, int extra_refs)
		3761	PPCODE:
		3762	{
		3763	AV *av = (AV *)SvRV (sem);
		3764
		3765	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3766	&& AvFILLp (av) == 0 /* no waiters, just count */
		3767	&& SvIV (AvARRAY (av)[0]) == count)
		3768	XSRETURN_YES;
		3769
		3770	XSRETURN_NO;
		3771	}
		3772
3378	MODULE = Coro::State PACKAGE = Coro::Signal	3773	MODULE = Coro::State PACKAGE = Coro::Signal
3379		3774
3380	SV *	3775	SV *
3381	new (SV *klass)	3776	new (SV *klass)
3382	CODE:	3777	CODE:
…		…
3453		3848
3454	void	3849	void
3455	_register (char *target, char *proto, SV *req)	3850	_register (char *target, char *proto, SV *req)
3456	CODE:	3851	CODE:
3457	{	3852	{
3458	CV *req_cv = coro_sv_2cv (aTHX_ req);	3853	SV *req_cv = s_get_cv_croak (req);
3459	/* newXSproto doesn't return the CV on 5.8 */	3854	/* newXSproto doesn't return the CV on 5.8 */
3460	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3855	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3461	sv_setpv ((SV *)slf_cv, proto);	3856	sv_setpv ((SV *)slf_cv, proto);
3462	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3857	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3463	}	3858	}
3464		3859
		3860	MODULE = Coro::State PACKAGE = Coro::Select
		3861
		3862	void
		3863	patch_pp_sselect ()
		3864	CODE:
		3865	if (!coro_old_pp_sselect)
		3866	{
		3867	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3868	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3869	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3870	}
		3871
		3872	void
		3873	unpatch_pp_sselect ()
		3874	CODE:
		3875	if (coro_old_pp_sselect)
		3876	{
		3877	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3878	coro_old_pp_sselect = 0;
		3879	}
		3880
		3881

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