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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.321 by root, Sat Nov 22 02:09:54 2008 UTC vs.
Revision 1.366 by root, Tue Jul 21 03:39:58 2009 UTC

1	#define CORO_CLONE 1 //D
2
3	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
4		2
5	#define PERL_NO_GET_CONTEXT	3	#define PERL_NO_GET_CONTEXT
6	#define PERL_EXT	4	#define PERL_EXT
7		5
8	#include "EXTERN.h"	6	#include "EXTERN.h"
9	#include "perl.h"	7	#include "perl.h"
10	#include "XSUB.h"	8	#include "XSUB.h"
11	#include "perliol.h"	9	#include "perliol.h"
12		10
13	#include "patchlevel.h"	11	#include "schmorp.h"
14		12
15	#include <stdio.h>	13	#include <stdio.h>
16	#include <errno.h>	14	#include <errno.h>
17	#include <assert.h>	15	#include <assert.h>
18		16
…		…
53	#endif	51	#endif
54		52
55	/* the maximum number of idle cctx that will be pooled */	53	/* the maximum number of idle cctx that will be pooled */
56	static int cctx_max_idle = 4;	54	static int cctx_max_idle = 4;
57		55
58	#define PERL_VERSION_ATLEAST(a,b,c) \
59	(PERL_REVISION > (a) \
60	|| (PERL_REVISION == (a) \
61	&& (PERL_VERSION > (b) \
62	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
63
64	#if !PERL_VERSION_ATLEAST (5,6,0)
65	# ifndef PL_ppaddr
66	# define PL_ppaddr ppaddr
67	# endif
68	# ifndef call_sv
69	# define call_sv perl_call_sv
70	# endif
71	# ifndef get_sv
72	# define get_sv perl_get_sv
73	# endif
74	# ifndef get_cv
75	# define get_cv perl_get_cv
76	# endif
77	# ifndef IS_PADGV
78	# define IS_PADGV(v) 0
79	# endif
80	# ifndef IS_PADCONST
81	# define IS_PADCONST(v) 0
82	# endif
83	#endif
84
85	/* 5.11 */
86	#ifndef CxHASARGS
87	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
88	#endif
89
90	/* 5.10.0 */
91	#ifndef SvREFCNT_inc_NN
92	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
93	#endif
94
95	/* 5.8.8 */
96	#ifndef GV_NOTQUAL
97	# define GV_NOTQUAL 0
98	#endif
99	#ifndef newSV
100	# define newSV(l) NEWSV(0,l)
101	#endif
102	#ifndef CvISXSUB_on
103	# define CvISXSUB_on(cv) (void)cv
104	#endif
105	#ifndef CvISXSUB
106	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
107	#endif
108	#ifndef Newx
109	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
110	#endif
111
112	/* 5.8.7 */
113	#ifndef SvRV_set
114	# define SvRV_set(s,v) SvRV(s) = (v)
115	#endif
116
117	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	56	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
118	# undef CORO_STACKGUARD	57	# undef CORO_STACKGUARD
119	#endif	58	#endif
120		59
121	#ifndef CORO_STACKGUARD	60	#ifndef CORO_STACKGUARD
…		…
135	#else	74	#else
136	# define dSTACKLEVEL volatile void *stacklevel	75	# define dSTACKLEVEL volatile void *stacklevel
137	# define STACKLEVEL ((void *)&stacklevel)	76	# define STACKLEVEL ((void *)&stacklevel)
138	#endif	77	#endif
139		78
140	#define IN_DESTRUCT (PL_main_cv == Nullcv)	79	#define IN_DESTRUCT PL_dirty
141		80
142	#if __GNUC__ >= 3	81	#if __GNUC__ >= 3
143	# define attribute(x) __attribute__(x)	82	# define attribute(x) __attribute__(x)
144	# define expect(expr,value) __builtin_expect ((expr),(value))	83	# define expect(expr,value) __builtin_expect ((expr), (value))
145	# define INLINE static inline	84	# define INLINE static inline
146	#else	85	#else
147	# define attribute(x)	86	# define attribute(x)
148	# define expect(expr,value) (expr)	87	# define expect(expr,value) (expr)
149	# define INLINE static	88	# define INLINE static
…		…
161	# if CORO_PTHREAD	100	# if CORO_PTHREAD
162	static void *coro_thx;	101	static void *coro_thx;
163	# endif	102	# endif
164	#endif	103	#endif
165		104
		105	#ifdef __linux
		106	# include <time.h> /* for timespec */
		107	# include <syscall.h> /* for SYS_* */
		108	# ifdef SYS_clock_gettime
		109	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		110	# define CORO_CLOCK_MONOTONIC 1
		111	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
		112	# endif
		113	#endif
		114
166	static double (*nvtime)(); /* so why doesn't it take void? */	115	static double (*nvtime)(); /* so why doesn't it take void? */
		116	static void (*u2time)(pTHX_ UV ret[2]);
167		117
168	/* we hijack an hopefully unused CV flag for our purposes */	118	/* we hijack an hopefully unused CV flag for our purposes */
169	#define CVf_SLF 0x4000	119	#define CVf_SLF 0x4000
170	static OP *pp_slf (pTHX);	120	static OP *pp_slf (pTHX);
171		121
…		…
177	static HV *coro_state_stash, *coro_stash;	127	static HV *coro_state_stash, *coro_stash;
178	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */	128	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
179		129
180	static AV *av_destroy; /* destruction queue */	130	static AV *av_destroy; /* destruction queue */
181	static SV *sv_manager; /* the manager coro */	131	static SV *sv_manager; /* the manager coro */
		132	static SV *sv_idle; /* $Coro::idle */
182		133
183	static GV *irsgv; /* $/ */	134	static GV *irsgv; /* $/ */
184	static GV *stdoutgv; /* *STDOUT */	135	static GV *stdoutgv; /* *STDOUT */
185	static SV *rv_diehook;	136	static SV *rv_diehook;
186	static SV *rv_warnhook;	137	static SV *rv_warnhook;
…		…
196	static CV *cv_coro_state_new;	147	static CV *cv_coro_state_new;
197		148
198	/* Coro::AnyEvent */	149	/* Coro::AnyEvent */
199	static SV *sv_activity;	150	static SV *sv_activity;
200		151
		152	/* enable processtime/realtime profiling */
		153	static char enable_times;
		154	typedef U32 coro_ts[2];
		155	static coro_ts time_real, time_cpu;
		156	static char times_valid;
		157
201	static struct coro_cctx *cctx_first;	158	static struct coro_cctx *cctx_first;
202	static int cctx_count, cctx_idle;	159	static int cctx_count, cctx_idle;
203		160
204	enum {	161	enum {
205	CC_MAPPED = 0x01,	162	CC_MAPPED = 0x01,
…		…
230	int valgrind_id;	187	int valgrind_id;
231	#endif	188	#endif
232	unsigned char flags;	189	unsigned char flags;
233	} coro_cctx;	190	} coro_cctx;
234		191
		192	coro_cctx *cctx_current; /* the currently running cctx */
		193
		194	/*****************************************************************************/
		195
235	enum {	196	enum {
236	CF_RUNNING = 0x0001, /* coroutine is running */	197	CF_RUNNING = 0x0001, /* coroutine is running */
237	CF_READY = 0x0002, /* coroutine is ready */	198	CF_READY = 0x0002, /* coroutine is ready */
238	CF_NEW = 0x0004, /* has never been switched to */	199	CF_NEW = 0x0004, /* has never been switched to */
239	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	200	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		201	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
240	};	202	};
241		203
242	/* the structure where most of the perl state is stored, overlaid on the cxstack */	204	/* the structure where most of the perl state is stored, overlaid on the cxstack */
243	typedef struct	205	typedef struct
244	{	206	{
245	SV *defsv;	207	SV *defsv;
246	AV *defav;	208	AV *defav;
247	SV *errsv;	209	SV *errsv;
248	SV *irsgv;	210	SV *irsgv;
		211	HV *hinthv;
249	#define VAR(name,type) type name;	212	#define VAR(name,type) type name;
250	# include "state.h"	213	# include "state.h"
251	#undef VAR	214	#undef VAR
252	} perl_slots;	215	} perl_slots;
253		216
…		…
255		218
256	/* this is a structure representing a perl-level coroutine */	219	/* this is a structure representing a perl-level coroutine */
257	struct coro {	220	struct coro {
258	/* the C coroutine allocated to this perl coroutine, if any */	221	/* the C coroutine allocated to this perl coroutine, if any */
259	coro_cctx *cctx;	222	coro_cctx *cctx;
		223
		224	/* ready queue */
		225	struct coro *next_ready;
260		226
261	/* state data */	227	/* state data */
262	struct CoroSLF slf_frame; /* saved slf frame */	228	struct CoroSLF slf_frame; /* saved slf frame */
263	AV *mainstack;	229	AV *mainstack;
264	perl_slots *slot; /* basically the saved sp */	230	perl_slots *slot; /* basically the saved sp */
…		…
281	/* async_pool */	247	/* async_pool */
282	SV *saved_deffh;	248	SV *saved_deffh;
283	SV *invoke_cb;	249	SV *invoke_cb;
284	AV *invoke_av;	250	AV *invoke_av;
285		251
		252	/* on_enter/on_leave */
		253	AV *on_enter;
		254	AV *on_leave;
		255
		256	/* times */
		257	coro_ts t_cpu, t_real;
		258
286	/* linked list */	259	/* linked list */
287	struct coro *next, *prev;	260	struct coro *next, *prev;
288	};	261	};
289		262
290	typedef struct coro *Coro__State;	263	typedef struct coro *Coro__State;
…		…
295	/* the mainr easonw e don't support windows process emulation */	268	/* the mainr easonw e don't support windows process emulation */
296	static struct CoroSLF slf_frame; /* the current slf frame */	269	static struct CoroSLF slf_frame; /* the current slf frame */
297		270
298	/** Coro ********************************************************************/	271	/** Coro ********************************************************************/
299		272
300	#define PRIO_MAX 3	273	#define CORO_PRIO_MAX 3
301	#define PRIO_HIGH 1	274	#define CORO_PRIO_HIGH 1
302	#define PRIO_NORMAL 0	275	#define CORO_PRIO_NORMAL 0
303	#define PRIO_LOW -1	276	#define CORO_PRIO_LOW -1
304	#define PRIO_IDLE -3	277	#define CORO_PRIO_IDLE -3
305	#define PRIO_MIN -4	278	#define CORO_PRIO_MIN -4
306		279
307	/* for Coro.pm */	280	/* for Coro.pm */
308	static SV *coro_current;	281	static SV *coro_current;
309	static SV *coro_readyhook;	282	static SV *coro_readyhook;
310	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	283	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
311	static CV *cv_coro_run, *cv_coro_terminate;	284	static CV *cv_coro_run, *cv_coro_terminate;
312	static struct coro *coro_first;	285	static struct coro *coro_first;
313	#define coro_nready coroapi.nready	286	#define coro_nready coroapi.nready
		287
		288	/** Coro::Select ************************************************************/
		289
		290	static OP *(*coro_old_pp_sselect) (pTHX);
		291	static SV *coro_select_select;
		292
		293	/* horrible hack, but if it works... */
		294	static OP *
		295	coro_pp_sselect (aTHX)
		296	{
		297	dSP;
		298	PUSHMARK (SP - 4); /* fake argument list */
		299	XPUSHs (coro_select_select);
		300	PUTBACK;
		301
		302	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
		303	PL_op->op_flags |= OPf_STACKED;
		304	PL_op->op_private = 0;
		305	return PL_ppaddr [OP_ENTERSUB](aTHX);
		306	}
314		307
315	/** lowlevel stuff **********************************************************/	308	/** lowlevel stuff **********************************************************/
316		309
317	static SV *	310	static SV *
318	coro_get_sv (pTHX_ const char *name, int create)	311	coro_get_sv (pTHX_ const char *name, int create)
…		…
342	get_hv (name, create);	335	get_hv (name, create);
343	#endif	336	#endif
344	return get_hv (name, create);	337	return get_hv (name, create);
345	}	338	}
346		339
347	/* may croak */	340	INLINE void
348	INLINE CV *	341	coro_times_update ()
349	coro_sv_2cv (pTHX_ SV *sv)
350	{	342	{
		343	#ifdef coro_clock_gettime
		344	struct timespec ts;
		345
		346	ts.tv_sec = ts.tv_nsec = 0;
		347	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		348	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
		349
		350	ts.tv_sec = ts.tv_nsec = 0;
		351	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		352	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		353	#else
		354	dTHX;
		355	UV tv[2];
		356
		357	u2time (aTHX_ tv);
		358	time_real [0] = tv [0];
		359	time_real [1] = tv [1] * 1000;
		360	#endif
		361	}
		362
		363	INLINE void
		364	coro_times_add (struct coro *c)
		365	{
		366	c->t_real [1] += time_real [1];
		367	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		368	c->t_real [0] += time_real [0];
		369
		370	c->t_cpu [1] += time_cpu [1];
		371	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		372	c->t_cpu [0] += time_cpu [0];
		373	}
		374
		375	INLINE void
		376	coro_times_sub (struct coro *c)
		377	{
		378	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		379	c->t_real [1] -= time_real [1];
		380	c->t_real [0] -= time_real [0];
		381
		382	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		383	c->t_cpu [1] -= time_cpu [1];
		384	c->t_cpu [0] -= time_cpu [0];
		385	}
		386
		387	/*****************************************************************************/
		388	/* magic glue */
		389
		390	#define CORO_MAGIC_type_cv 26
		391	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		392
		393	#define CORO_MAGIC_NN(sv, type) \
		394	(expect_true (SvMAGIC (sv)->mg_type == type) \
		395	? SvMAGIC (sv) \
		396	: mg_find (sv, type))
		397
		398	#define CORO_MAGIC(sv, type) \
		399	(expect_true (SvMAGIC (sv)) \
		400	? CORO_MAGIC_NN (sv, type) \
		401	: 0)
		402
		403	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		404	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		405
		406	INLINE struct coro *
		407	SvSTATE_ (pTHX_ SV *coro)
		408	{
351	HV *st;	409	HV *stash;
352	GV *gvp;	410	MAGIC *mg;
353	return sv_2cv (sv, &st, &gvp, 0);	411
		412	if (SvROK (coro))
		413	coro = SvRV (coro);
		414
		415	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		416	croak ("Coro::State object required");
		417
		418	stash = SvSTASH (coro);
		419	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		420	{
		421	/* very slow, but rare, check */
		422	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		423	croak ("Coro::State object required");
		424	}
		425
		426	mg = CORO_MAGIC_state (coro);
		427	return (struct coro *)mg->mg_ptr;
354	}	428	}
		429
		430	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		431
		432	/* faster than SvSTATE, but expects a coroutine hv */
		433	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		434	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		435
		436	/*****************************************************************************/
		437	/* padlist management and caching */
355		438
356	static AV *	439	static AV *
357	coro_derive_padlist (pTHX_ CV *cv)	440	coro_derive_padlist (pTHX_ CV *cv)
358	{	441	{
359	AV *padlist = CvPADLIST (cv);	442	AV *padlist = CvPADLIST (cv);
…		…
367	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	450	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
368	#endif	451	#endif
369	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	452	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
370	--AvFILLp (padlist);	453	--AvFILLp (padlist);
371		454
372	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	455	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
373	av_store (newpadlist, 1, (SV *)newpad);	456	av_store (newpadlist, 1, (SV *)newpad);
374		457
375	return newpadlist;	458	return newpadlist;
376	}	459	}
377		460
378	static void	461	static void
379	free_padlist (pTHX_ AV *padlist)	462	free_padlist (pTHX_ AV *padlist)
380	{	463	{
381	/* may be during global destruction */	464	/* may be during global destruction */
382	if (SvREFCNT (padlist))	465	if (!IN_DESTRUCT)
383	{	466	{
384	I32 i = AvFILLp (padlist);	467	I32 i = AvFILLp (padlist);
385	while (i >= 0)	468
		469	while (i > 0) /* special-case index 0 */
386	{	470	{
387	SV **svp = av_fetch (padlist, i--, FALSE);	471	/* we try to be extra-careful here */
388	if (svp)	472	AV *av = (AV *)AvARRAY (padlist)[i--];
389	{	473	I32 j = AvFILLp (av);
390	SV *sv;	474
391	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	475	while (j >= 0)
		476	SvREFCNT_dec (AvARRAY (av)[j--]);
		477
		478	AvFILLp (av) = -1;
392	SvREFCNT_dec (sv);	479	SvREFCNT_dec (av);
393
394	SvREFCNT_dec (*svp);
395	}
396	}	480	}
397		481
		482	SvREFCNT_dec (AvARRAY (padlist)[0]);
		483
		484	AvFILLp (padlist) = -1;
398	SvREFCNT_dec ((SV*)padlist);	485	SvREFCNT_dec ((SV*)padlist);
399	}	486	}
400	}	487	}
401		488
402	static int	489	static int
403	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	490	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
404	{	491	{
405	AV *padlist;	492	AV *padlist;
406	AV *av = (AV *)mg->mg_obj;	493	AV *av = (AV *)mg->mg_obj;
		494
		495	/* perl manages to free our internal AV and _then_ call us */
		496	if (IN_DESTRUCT)
		497	return 0;
407		498
408	/* casting is fun. */	499	/* casting is fun. */
409	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	500	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
410	free_padlist (aTHX_ padlist);	501	free_padlist (aTHX_ padlist);
411		502
412	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	503	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
413		504
414	return 0;	505	return 0;
415	}	506	}
416
417	#define CORO_MAGIC_type_cv 26
418	#define CORO_MAGIC_type_state PERL_MAGIC_ext
419		507
420	static MGVTBL coro_cv_vtbl = {	508	static MGVTBL coro_cv_vtbl = {
421	0, 0, 0, 0,	509	0, 0, 0, 0,
422	coro_cv_free	510	coro_cv_free
423	};	511	};
424
425	#define CORO_MAGIC_NN(sv, type) \
426	(expect_true (SvMAGIC (sv)->mg_type == type) \
427	? SvMAGIC (sv) \
428	: mg_find (sv, type))
429
430	#define CORO_MAGIC(sv, type) \
431	(expect_true (SvMAGIC (sv)) \
432	? CORO_MAGIC_NN (sv, type) \
433	: 0)
434
435	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
436	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
437
438	INLINE struct coro *
439	SvSTATE_ (pTHX_ SV *coro)
440	{
441	HV *stash;
442	MAGIC *mg;
443
444	if (SvROK (coro))
445	coro = SvRV (coro);
446
447	if (expect_false (SvTYPE (coro) != SVt_PVHV))
448	croak ("Coro::State object required");
449
450	stash = SvSTASH (coro);
451	if (expect_false (stash != coro_stash && stash != coro_state_stash))
452	{
453	/* very slow, but rare, check */
454	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
455	croak ("Coro::State object required");
456	}
457
458	mg = CORO_MAGIC_state (coro);
459	return (struct coro *)mg->mg_ptr;
460	}
461
462	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
463
464	/* faster than SvSTATE, but expects a coroutine hv */
465	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
466	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
467		512
468	/* the next two functions merely cache the padlists */	513	/* the next two functions merely cache the padlists */
469	static void	514	static void
470	get_padlist (pTHX_ CV *cv)	515	get_padlist (pTHX_ CV *cv)
471	{	516	{
…		…
499	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	544	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
500		545
501	av = (AV *)mg->mg_obj;	546	av = (AV *)mg->mg_obj;
502		547
503	if (expect_false (AvFILLp (av) >= AvMAX (av)))	548	if (expect_false (AvFILLp (av) >= AvMAX (av)))
504	av_extend (av, AvMAX (av) + 1);	549	av_extend (av, AvFILLp (av) + 1);
505		550
506	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	551	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
507	}	552	}
508		553
509	/** load & save, init *******************************************************/	554	/** load & save, init *******************************************************/
		555
		556	static void
		557	on_enterleave_call (pTHX_ SV *cb);
510		558
511	static void	559	static void
512	load_perl (pTHX_ Coro__State c)	560	load_perl (pTHX_ Coro__State c)
513	{	561	{
514	perl_slots *slot = c->slot;	562	perl_slots *slot = c->slot;
515	c->slot = 0;	563	c->slot = 0;
516		564
517	PL_mainstack = c->mainstack;	565	PL_mainstack = c->mainstack;
518		566
519	GvSV (PL_defgv) = slot->defsv;	567	GvSV (PL_defgv) = slot->defsv;
520	GvAV (PL_defgv) = slot->defav;	568	GvAV (PL_defgv) = slot->defav;
521	GvSV (PL_errgv) = slot->errsv;	569	GvSV (PL_errgv) = slot->errsv;
522	GvSV (irsgv) = slot->irsgv;	570	GvSV (irsgv) = slot->irsgv;
		571	GvHV (PL_hintgv) = slot->hinthv;
523		572
524	#define VAR(name,type) PL_ ## name = slot->name;	573	#define VAR(name,type) PL_ ## name = slot->name;
525	# include "state.h"	574	# include "state.h"
526	#undef VAR	575	#undef VAR
527		576
…		…
541	PUTBACK;	590	PUTBACK;
542	}	591	}
543		592
544	slf_frame = c->slf_frame;	593	slf_frame = c->slf_frame;
545	CORO_THROW = c->except;	594	CORO_THROW = c->except;
		595
		596	if (expect_false (enable_times))
		597	{
		598	if (expect_false (!times_valid))
		599	coro_times_update ();
		600
		601	coro_times_sub (c);
		602	}
		603
		604	if (expect_false (c->on_enter))
		605	{
		606	int i;
		607
		608	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		609	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		610	}
546	}	611	}
547		612
548	static void	613	static void
549	save_perl (pTHX_ Coro__State c)	614	save_perl (pTHX_ Coro__State c)
550	{	615	{
		616	if (expect_false (c->on_leave))
		617	{
		618	int i;
		619
		620	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		621	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		622	}
		623
		624	times_valid = 0;
		625
		626	if (expect_false (enable_times))
		627	{
		628	coro_times_update (); times_valid = 1;
		629	coro_times_add (c);
		630	}
		631
551	c->except = CORO_THROW;	632	c->except = CORO_THROW;
552	c->slf_frame = slf_frame;	633	c->slf_frame = slf_frame;
553		634
554	{	635	{
555	dSP;	636	dSP;
…		…
568	{	649	{
569	while (expect_true (cxix >= 0))	650	while (expect_true (cxix >= 0))
570	{	651	{
571	PERL_CONTEXT *cx = &ccstk[cxix--];	652	PERL_CONTEXT *cx = &ccstk[cxix--];
572		653
573	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))	654	if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
574	{	655	{
575	CV *cv = cx->blk_sub.cv;	656	CV *cv = cx->blk_sub.cv;
576		657
577	if (expect_true (CvDEPTH (cv)))	658	if (expect_true (CvDEPTH (cv)))
578	{	659	{
…		…
602	/* we manually unroll here, as usually 2 slots is enough */	683	/* we manually unroll here, as usually 2 slots is enough */
603	if (SLOT_COUNT >= 1) CXINC;	684	if (SLOT_COUNT >= 1) CXINC;
604	if (SLOT_COUNT >= 2) CXINC;	685	if (SLOT_COUNT >= 2) CXINC;
605	if (SLOT_COUNT >= 3) CXINC;	686	if (SLOT_COUNT >= 3) CXINC;
606	{	687	{
607	int i;	688	unsigned int i;
608	for (i = 3; i < SLOT_COUNT; ++i)	689	for (i = 3; i < SLOT_COUNT; ++i)
609	CXINC;	690	CXINC;
610	}	691	}
611	cxstack_ix -= SLOT_COUNT; /* undo allocation */	692	cxstack_ix -= SLOT_COUNT; /* undo allocation */
612		693
613	c->mainstack = PL_mainstack;	694	c->mainstack = PL_mainstack;
614		695
615	{	696	{
616	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	697	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
617		698
618	slot->defav = GvAV (PL_defgv);	699	slot->defav = GvAV (PL_defgv);
619	slot->defsv = DEFSV;	700	slot->defsv = DEFSV;
620	slot->errsv = ERRSV;	701	slot->errsv = ERRSV;
621	slot->irsgv = GvSV (irsgv);	702	slot->irsgv = GvSV (irsgv);
		703	slot->hinthv = GvHV (PL_hintgv);
622		704
623	#define VAR(name,type) slot->name = PL_ ## name;	705	#define VAR(name,type) slot->name = PL_ ## name;
624	# include "state.h"	706	# include "state.h"
625	#undef VAR	707	#undef VAR
626	}	708	}
…		…
753	#endif	835	#endif
754		836
755	/*	837	/*
756	* This overrides the default magic get method of %SIG elements.	838	* This overrides the default magic get method of %SIG elements.
757	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	839	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
758	* and instead of tryign to save and restore the hash elements, we just provide	840	* and instead of trying to save and restore the hash elements, we just provide
759	* readback here.	841	* readback here.
760	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
761	* not expecting this to actually change the hook. This is a potential problem
762	* when a schedule happens then, but we ignore this.
763	*/	842	*/
764	static int	843	static int
765	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	844	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
766	{	845	{
767	const char *s = MgPV_nolen_const (mg);	846	const char *s = MgPV_nolen_const (mg);
…		…
820	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	899	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
821		900
822	if (svp)	901	if (svp)
823	{	902	{
824	SV *old = *svp;	903	SV *old = *svp;
825	*svp = newSVsv (sv);	904	*svp = SvOK (sv) ? newSVsv (sv) : 0;
826	SvREFCNT_dec (old);	905	SvREFCNT_dec (old);
827	return 0;	906	return 0;
828	}	907	}
829	}	908	}
830		909
…		…
862		941
863	PL_runops = RUNOPS_DEFAULT;	942	PL_runops = RUNOPS_DEFAULT;
864	PL_curcop = &PL_compiling;	943	PL_curcop = &PL_compiling;
865	PL_in_eval = EVAL_NULL;	944	PL_in_eval = EVAL_NULL;
866	PL_comppad = 0;	945	PL_comppad = 0;
		946	PL_comppad_name = 0;
		947	PL_comppad_name_fill = 0;
		948	PL_comppad_name_floor = 0;
867	PL_curpm = 0;	949	PL_curpm = 0;
868	PL_curpad = 0;	950	PL_curpad = 0;
869	PL_localizing = 0;	951	PL_localizing = 0;
870	PL_dirty = 0;	952	PL_dirty = 0;
871	PL_restartop = 0;	953	PL_restartop = 0;
872	#if PERL_VERSION_ATLEAST (5,10,0)	954	#if PERL_VERSION_ATLEAST (5,10,0)
873	PL_parser = 0;	955	PL_parser = 0;
874	#endif	956	#endif
		957	PL_hints = 0;
875		958
876	/* recreate the die/warn hooks */	959	/* recreate the die/warn hooks */
877	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	960	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
878	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	961	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
879		962
880	GvSV (PL_defgv) = newSV (0);	963	GvSV (PL_defgv) = newSV (0);
881	GvAV (PL_defgv) = coro->args; coro->args = 0;	964	GvAV (PL_defgv) = coro->args; coro->args = 0;
882	GvSV (PL_errgv) = newSV (0);	965	GvSV (PL_errgv) = newSV (0);
883	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	966	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		967	GvHV (PL_hintgv) = 0;
884	PL_rs = newSVsv (GvSV (irsgv));	968	PL_rs = newSVsv (GvSV (irsgv));
885	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	969	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
886		970
887	{	971	{
888	dSP;	972	dSP;
…		…
914		998
915	PL_op = (OP *)&coro_setup_op;	999	PL_op = (OP *)&coro_setup_op;
916		1000
917	/* copy throw, in case it was set before coro_setup */	1001	/* copy throw, in case it was set before coro_setup */
918	CORO_THROW = coro->except;	1002	CORO_THROW = coro->except;
919	}
920		1003
		1004	if (expect_false (enable_times))
		1005	{
		1006	coro_times_update ();
		1007	coro_times_sub (coro);
		1008	}
		1009	}
		1010
921	static void	1011	static void
922	coro_destruct (pTHX_ struct coro *coro)	1012	coro_unwind_stacks (pTHX)
923	{	1013	{
924	if (!IN_DESTRUCT)	1014	if (!IN_DESTRUCT)
925	{	1015	{
926	/* restore all saved variables and stuff */	1016	/* restore all saved variables and stuff */
927	LEAVE_SCOPE (0);	1017	LEAVE_SCOPE (0);
…		…
935	POPSTACK_TO (PL_mainstack);	1025	POPSTACK_TO (PL_mainstack);
936		1026
937	/* unwind main stack */	1027	/* unwind main stack */
938	dounwind (-1);	1028	dounwind (-1);
939	}	1029	}
		1030	}
940		1031
941	SvREFCNT_dec (GvSV (PL_defgv));	1032	static void
942	SvREFCNT_dec (GvAV (PL_defgv));	1033	coro_destruct_perl (pTHX_ struct coro *coro)
943	SvREFCNT_dec (GvSV (PL_errgv));	1034	{
944	SvREFCNT_dec (PL_defoutgv);	1035	SV *svf [9];
945	SvREFCNT_dec (PL_rs);
946	SvREFCNT_dec (GvSV (irsgv));
947		1036
948	SvREFCNT_dec (PL_diehook);
949	SvREFCNT_dec (PL_warnhook);
950		1037	{
		1038	struct coro *current = SvSTATE_current;
		1039
		1040	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1041
		1042	save_perl (aTHX_ current);
		1043	load_perl (aTHX_ coro);
		1044
		1045	coro_unwind_stacks (aTHX);
		1046	coro_destruct_stacks (aTHX);
		1047
		1048	// now save some sv's to be free'd later
		1049	svf [0] = GvSV (PL_defgv);
		1050	svf [1] = (SV *)GvAV (PL_defgv);
		1051	svf [2] = GvSV (PL_errgv);
		1052	svf [3] = (SV *)PL_defoutgv;
		1053	svf [4] = PL_rs;
		1054	svf [5] = GvSV (irsgv);
		1055	svf [6] = (SV *)GvHV (PL_hintgv);
		1056	svf [7] = PL_diehook;
		1057	svf [8] = PL_warnhook;
		1058	assert (9 == sizeof (svf) / sizeof (*svf));
		1059
		1060	load_perl (aTHX_ current);
		1061	}
		1062
		1063	{
		1064	unsigned int i;
		1065
		1066	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1067	SvREFCNT_dec (svf [i]);
		1068
951	SvREFCNT_dec (coro->saved_deffh);	1069	SvREFCNT_dec (coro->saved_deffh);
952	SvREFCNT_dec (coro->rouse_cb);	1070	SvREFCNT_dec (coro->rouse_cb);
953	SvREFCNT_dec (coro->invoke_cb);	1071	SvREFCNT_dec (coro->invoke_cb);
954	SvREFCNT_dec (coro->invoke_av);	1072	SvREFCNT_dec (coro->invoke_av);
955		1073	}
956	coro_destruct_stacks (aTHX);
957	}	1074	}
958		1075
959	INLINE void	1076	INLINE void
960	free_coro_mortal (pTHX)	1077	free_coro_mortal (pTHX)
961	{	1078	{
…		…
969	static int	1086	static int
970	runops_trace (pTHX)	1087	runops_trace (pTHX)
971	{	1088	{
972	COP *oldcop = 0;	1089	COP *oldcop = 0;
973	int oldcxix = -2;	1090	int oldcxix = -2;
974	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
975	coro_cctx *cctx = coro->cctx;
976		1091
977	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	1092	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
978	{	1093	{
979	PERL_ASYNC_CHECK ();	1094	PERL_ASYNC_CHECK ();
980		1095
981	if (cctx->flags & CC_TRACE_ALL)	1096	if (cctx_current->flags & CC_TRACE_ALL)
982	{	1097	{
983	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	1098	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
984	{	1099	{
985	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1100	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
986	SV **bot, **top;	1101	SV **bot, **top;
987	AV *av = newAV (); /* return values */	1102	AV *av = newAV (); /* return values */
988	SV **cb;	1103	SV **cb;
…		…
1025		1140
1026	if (PL_curcop != &PL_compiling)	1141	if (PL_curcop != &PL_compiling)
1027	{	1142	{
1028	SV **cb;	1143	SV **cb;
1029		1144
1030	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1145	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1031	{	1146	{
1032	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1147	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1033		1148
1034	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1149	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1035	{	1150	{
…		…
1058	}	1173	}
1059		1174
1060	oldcxix = cxstack_ix;	1175	oldcxix = cxstack_ix;
1061	}	1176	}
1062		1177
1063	if (cctx->flags & CC_TRACE_LINE)	1178	if (cctx_current->flags & CC_TRACE_LINE)
1064	{	1179	{
1065	dSP;	1180	dSP;
1066		1181
1067	PL_runops = RUNOPS_DEFAULT;	1182	PL_runops = RUNOPS_DEFAULT;
1068	ENTER;	1183	ENTER;
…		…
1087		1202
1088	TAINT_NOT;	1203	TAINT_NOT;
1089	return 0;	1204	return 0;
1090	}	1205	}
1091		1206
1092	static struct coro_cctx *cctx_ssl_cctx;
1093	static struct CoroSLF cctx_ssl_frame;	1207	static struct CoroSLF cctx_ssl_frame;
1094		1208
1095	static void	1209	static void
1096	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1210	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1097	{	1211	{
1098	ta->prev = (struct coro *)cctx_ssl_cctx;
1099	ta->next = 0;	1212	ta->prev = 0;
1100	}	1213	}
1101		1214
1102	static int	1215	static int
1103	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1216	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1104	{	1217	{
…		…
1107	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1220	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1108	}	1221	}
1109		1222
1110	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1223	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1111	static void NOINLINE	1224	static void NOINLINE
1112	cctx_prepare (pTHX_ coro_cctx *cctx)	1225	cctx_prepare (pTHX)
1113	{	1226	{
1114	PL_top_env = &PL_start_env;	1227	PL_top_env = &PL_start_env;
1115		1228
1116	if (cctx->flags & CC_TRACE)	1229	if (cctx_current->flags & CC_TRACE)
1117	PL_runops = runops_trace;	1230	PL_runops = runops_trace;
1118		1231
1119	/* we already must be executing an SLF op, there is no other valid way	1232	/* we already must be executing an SLF op, there is no other valid way
1120	* that can lead to creation of a new cctx */	1233	* that can lead to creation of a new cctx */
1121	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1234	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1122	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1235	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1123		1236
1124	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1237	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1125	cctx_ssl_cctx = cctx;
1126	cctx_ssl_frame = slf_frame;	1238	cctx_ssl_frame = slf_frame;
1127		1239
1128	slf_frame.prepare = slf_prepare_set_stacklevel;	1240	slf_frame.prepare = slf_prepare_set_stacklevel;
1129	slf_frame.check = slf_check_set_stacklevel;	1241	slf_frame.check = slf_check_set_stacklevel;
1130	}	1242	}
…		…
1153	/* normally we would need to skip the entersub here */	1265	/* normally we would need to skip the entersub here */
1154	/* not doing so will re-execute it, which is exactly what we want */	1266	/* not doing so will re-execute it, which is exactly what we want */
1155	/* PL_nop = PL_nop->op_next */	1267	/* PL_nop = PL_nop->op_next */
1156		1268
1157	/* inject a fake subroutine call to cctx_init */	1269	/* inject a fake subroutine call to cctx_init */
1158	cctx_prepare (aTHX_ (coro_cctx *)arg);	1270	cctx_prepare (aTHX);
1159		1271
1160	/* cctx_run is the alternative tail of transfer() */	1272	/* cctx_run is the alternative tail of transfer() */
1161	transfer_tail (aTHX);	1273	transfer_tail (aTHX);
1162		1274
1163	/* somebody or something will hit me for both perl_run and PL_restartop */	1275	/* somebody or something will hit me for both perl_run and PL_restartop */
…		…
1171	/*	1283	/*
1172	* If perl-run returns we assume exit() was being called or the coro	1284	* If perl-run returns we assume exit() was being called or the coro
1173	* fell off the end, which seems to be the only valid (non-bug)	1285	* fell off the end, which seems to be the only valid (non-bug)
1174	* reason for perl_run to return. We try to exit by jumping to the	1286	* reason for perl_run to return. We try to exit by jumping to the
1175	* bootstrap-time "top" top_env, as we cannot restore the "main"	1287	* bootstrap-time "top" top_env, as we cannot restore the "main"
1176	* coroutine as Coro has no such concept	1288	* coroutine as Coro has no such concept.
		1289	* This actually isn't valid with the pthread backend, but OSes requiring
		1290	* that backend are too broken to do it in a standards-compliant way.
1177	*/	1291	*/
1178	PL_top_env = main_top_env;	1292	PL_top_env = main_top_env;
1179	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1293	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1180	}	1294	}
1181	}	1295	}
…		…
1258	cctx_destroy (coro_cctx *cctx)	1372	cctx_destroy (coro_cctx *cctx)
1259	{	1373	{
1260	if (!cctx)	1374	if (!cctx)
1261	return;	1375	return;
1262		1376
		1377	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
		1378
1263	--cctx_count;	1379	--cctx_count;
1264	coro_destroy (&cctx->cctx);	1380	coro_destroy (&cctx->cctx);
1265		1381
1266	/* coro_transfer creates new, empty cctx's */	1382	/* coro_transfer creates new, empty cctx's */
1267	if (cctx->sptr)	1383	if (cctx->sptr)
…		…
1330	/* TODO: throwing up here is considered harmful */	1446	/* TODO: throwing up here is considered harmful */
1331		1447
1332	if (expect_true (prev != next))	1448	if (expect_true (prev != next))
1333	{	1449	{
1334	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1450	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1335	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");	1451	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1336		1452
1337	if (expect_false (next->flags & CF_RUNNING))
1338	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1339
1340	if (expect_false (next->flags & CF_DESTROYED))	1453	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1341	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1454	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1342		1455
1343	#if !PERL_VERSION_ATLEAST (5,10,0)	1456	#if !PERL_VERSION_ATLEAST (5,10,0)
1344	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1457	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1345	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1458	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1346	#endif	1459	#endif
…		…
1352	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1465	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1353	{	1466	{
1354	dSTACKLEVEL;	1467	dSTACKLEVEL;
1355		1468
1356	/* sometimes transfer is only called to set idle_sp */	1469	/* sometimes transfer is only called to set idle_sp */
1357	if (expect_false (!next))	1470	if (expect_false (!prev))
1358	{	1471	{
1359	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1472	cctx_current->idle_sp = STACKLEVEL;
1360	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1473	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1361	}	1474	}
1362	else if (expect_true (prev != next))	1475	else if (expect_true (prev != next))
1363	{	1476	{
1364	coro_cctx *prev__cctx;	1477	coro_cctx *cctx_prev;
1365		1478
1366	if (expect_false (prev->flags & CF_NEW))	1479	if (expect_false (prev->flags & CF_NEW))
1367	{	1480	{
1368	/* create a new empty/source context */	1481	/* create a new empty/source context */
1369	prev->cctx = cctx_new_empty ();
1370	prev->flags &= ~CF_NEW;	1482	prev->flags &= ~CF_NEW;
1371	prev->flags |= CF_RUNNING;	1483	prev->flags |= CF_RUNNING;
1372	}	1484	}
1373		1485
1374	prev->flags &= ~CF_RUNNING;	1486	prev->flags &= ~CF_RUNNING;
…		…
1385	coro_setup (aTHX_ next);	1497	coro_setup (aTHX_ next);
1386	}	1498	}
1387	else	1499	else
1388	load_perl (aTHX_ next);	1500	load_perl (aTHX_ next);
1389		1501
1390	prev__cctx = prev->cctx;
1391
1392	/* possibly untie and reuse the cctx */	1502	/* possibly untie and reuse the cctx */
1393	if (expect_true (	1503	if (expect_true (
1394	prev__cctx->idle_sp == STACKLEVEL	1504	cctx_current->idle_sp == STACKLEVEL
1395	&& !(prev__cctx->flags & CC_TRACE)	1505	&& !(cctx_current->flags & CC_TRACE)
1396	&& !force_cctx	1506	&& !force_cctx
1397	))	1507	))
1398	{	1508	{
1399	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1509	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1400	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1510	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1401		1511
1402	prev->cctx = 0;
1403
1404	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1512	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1405	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1513	/* without this the next cctx_get might destroy the running cctx while still in use */
1406	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1514	if (expect_false (CCTX_EXPIRED (cctx_current)))
1407	if (!next->cctx)	1515	if (expect_true (!next->cctx))
1408	next->cctx = cctx_get (aTHX);	1516	next->cctx = cctx_get (aTHX);
1409		1517
1410	cctx_put (prev__cctx);	1518	cctx_put (cctx_current);
1411	}	1519	}
		1520	else
		1521	prev->cctx = cctx_current;
1412		1522
1413	++next->usecount;	1523	++next->usecount;
1414		1524
1415	if (expect_true (!next->cctx))	1525	cctx_prev = cctx_current;
1416	next->cctx = cctx_get (aTHX);	1526	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1417		1527
1418	if (expect_false (prev__cctx != next->cctx))	1528	next->cctx = 0;
		1529
		1530	if (expect_false (cctx_prev != cctx_current))
1419	{	1531	{
1420	prev__cctx->top_env = PL_top_env;	1532	cctx_prev->top_env = PL_top_env;
1421	PL_top_env = next->cctx->top_env;	1533	PL_top_env = cctx_current->top_env;
1422	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1534	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1423	}	1535	}
1424		1536
1425	transfer_tail (aTHX);	1537	transfer_tail (aTHX);
1426	}	1538	}
1427	}	1539	}
…		…
1435	coro_state_destroy (pTHX_ struct coro *coro)	1547	coro_state_destroy (pTHX_ struct coro *coro)
1436	{	1548	{
1437	if (coro->flags & CF_DESTROYED)	1549	if (coro->flags & CF_DESTROYED)
1438	return 0;	1550	return 0;
1439		1551
1440	if (coro->on_destroy)	1552	if (coro->on_destroy && !PL_dirty)
1441	coro->on_destroy (aTHX_ coro);	1553	coro->on_destroy (aTHX_ coro);
1442		1554
1443	coro->flags |= CF_DESTROYED;	1555	coro->flags |= CF_DESTROYED;
1444		1556
1445	if (coro->flags & CF_READY)	1557	if (coro->flags & CF_READY)
…		…
1449	--coro_nready;	1561	--coro_nready;
1450	}	1562	}
1451	else	1563	else
1452	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1564	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1453		1565
1454	if (coro->mainstack && coro->mainstack != main_mainstack)	1566	if (coro->mainstack
1455	{	1567	&& coro->mainstack != main_mainstack
1456	struct coro temp;	1568	&& coro->slot
1457		1569	&& !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);
1462
1463	coro_destruct (aTHX_ coro);	1570	coro_destruct_perl (aTHX_ coro);
1464
1465	load_perl (aTHX_ &temp);
1466
1467	coro->slot = 0;
1468	}
1469		1571
1470	cctx_destroy (coro->cctx);	1572	cctx_destroy (coro->cctx);
1471	SvREFCNT_dec (coro->startcv);	1573	SvREFCNT_dec (coro->startcv);
1472	SvREFCNT_dec (coro->args);	1574	SvREFCNT_dec (coro->args);
1473	SvREFCNT_dec (CORO_THROW);	1575	SvREFCNT_dec (CORO_THROW);
…		…
1532		1634
1533	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1635	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1534	TRANSFER (ta, 1);	1636	TRANSFER (ta, 1);
1535	}	1637	}
1536		1638
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 ********************************************************************/	1639	/** Coro ********************************************************************/
1561		1640
1562	INLINE void	1641	INLINE void
1563	coro_enq (pTHX_ struct coro *coro)	1642	coro_enq (pTHX_ struct coro *coro)
1564	{	1643	{
1565	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1644	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1566	}
1567		1645
1568	INLINE SV *	1646	SvREFCNT_inc_NN (coro->hv);
		1647
		1648	coro->next_ready = 0;
		1649	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1650	ready [1] = coro;
		1651	}
		1652
		1653	INLINE struct coro *
1569	coro_deq (pTHX)	1654	coro_deq (pTHX)
1570	{	1655	{
1571	int prio;	1656	int prio;
1572		1657
1573	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1658	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1574	if (AvFILLp (coro_ready [prio]) >= 0)	1659	{
1575	return av_shift (coro_ready [prio]);	1660	struct coro **ready = coro_ready [prio];
		1661
		1662	if (ready [0])
		1663	{
		1664	struct coro *coro = ready [0];
		1665	ready [0] = coro->next_ready;
		1666	return coro;
		1667	}
		1668	}
1576		1669
1577	return 0;	1670	return 0;
		1671	}
		1672
		1673	static void
		1674	invoke_sv_ready_hook_helper (void)
		1675	{
		1676	dTHX;
		1677	dSP;
		1678
		1679	ENTER;
		1680	SAVETMPS;
		1681
		1682	PUSHMARK (SP);
		1683	PUTBACK;
		1684	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1685
		1686	FREETMPS;
		1687	LEAVE;
1578	}	1688	}
1579		1689
1580	static int	1690	static int
1581	api_ready (pTHX_ SV *coro_sv)	1691	api_ready (pTHX_ SV *coro_sv)
1582	{	1692	{
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);	1693	struct coro *coro = SvSTATE (coro_sv);
1591		1694
1592	if (coro->flags & CF_READY)	1695	if (coro->flags & CF_READY)
1593	return 0;	1696	return 0;
1594		1697
1595	coro->flags |= CF_READY;	1698	coro->flags |= CF_READY;
1596		1699
1597	sv_hook = coro_nready ? 0 : coro_readyhook;
1598	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1599
1600	coro_enq (aTHX_ coro);	1700	coro_enq (aTHX_ coro);
1601	++coro_nready;
1602		1701
1603	if (sv_hook)	1702	if (!coro_nready++)
1604	{	1703	if (coroapi.readyhook)
1605	dSP;	1704	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		1705
1621	return 1;	1706	return 1;
1622	}	1707	}
1623		1708
1624	static int	1709	static int
…		…
1647	static void	1732	static void
1648	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1733	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1649	{	1734	{
1650	for (;;)	1735	for (;;)
1651	{	1736	{
1652	SV *next_sv = coro_deq (aTHX);	1737	struct coro *next = coro_deq (aTHX);
1653		1738
1654	if (expect_true (next_sv))	1739	if (expect_true (next))
1655	{	1740	{
1656	struct coro *next = SvSTATE_hv (next_sv);
1657
1658	/* cannot transfer to destroyed coros, skip and look for next */	1741	/* cannot transfer to destroyed coros, skip and look for next */
1659	if (expect_false (next->flags & CF_DESTROYED))	1742	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1660	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1743	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1661	else	1744	else
1662	{	1745	{
1663	next->flags &= ~CF_READY;	1746	next->flags &= ~CF_READY;
1664	--coro_nready;	1747	--coro_nready;
1665		1748
…		…
1668	}	1751	}
1669	}	1752	}
1670	else	1753	else
1671	{	1754	{
1672	/* nothing to schedule: call the idle handler */	1755	/* nothing to schedule: call the idle handler */
		1756	if (SvROK (sv_idle)
		1757	&& SvOBJECT (SvRV (sv_idle)))
		1758	{
		1759	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1760	api_ready (aTHX_ SvRV (sv_idle));
		1761	--coro_nready;
		1762	}
		1763	else
		1764	{
1673	dSP;	1765	dSP;
1674		1766
1675	ENTER;	1767	ENTER;
1676	SAVETMPS;	1768	SAVETMPS;
1677		1769
1678	PUSHMARK (SP);	1770	PUSHMARK (SP);
1679	PUTBACK;	1771	PUTBACK;
1680	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);	1772	call_sv (sv_idle, G_VOID | G_DISCARD);
1681		1773
1682	FREETMPS;	1774	FREETMPS;
1683	LEAVE;	1775	LEAVE;
		1776	}
1684	}	1777	}
1685	}	1778	}
1686	}	1779	}
1687		1780
1688	INLINE void	1781	INLINE void
…		…
1759	static void	1852	static void
1760	api_trace (pTHX_ SV *coro_sv, int flags)	1853	api_trace (pTHX_ SV *coro_sv, int flags)
1761	{	1854	{
1762	struct coro *coro = SvSTATE (coro_sv);	1855	struct coro *coro = SvSTATE (coro_sv);
1763		1856
		1857	if (coro->flags & CF_RUNNING)
		1858	croak ("cannot enable tracing on a running coroutine, caught");
		1859
1764	if (flags & CC_TRACE)	1860	if (flags & CC_TRACE)
1765	{	1861	{
1766	if (!coro->cctx)	1862	if (!coro->cctx)
1767	coro->cctx = cctx_new_run ();	1863	coro->cctx = cctx_new_run ();
1768	else if (!(coro->cctx->flags & CC_TRACE))	1864	else if (!(coro->cctx->flags & CC_TRACE))
1769	croak ("cannot enable tracing on coroutine with custom stack,");	1865	croak ("cannot enable tracing on coroutine with custom stack, caught");
1770		1866
1771	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1867	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1772	}	1868	}
1773	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1869	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1774	{	1870	{
…		…
1830	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	1926	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1831	api_ready (aTHX_ sv_manager);	1927	api_ready (aTHX_ sv_manager);
1832		1928
1833	frame->prepare = prepare_schedule;	1929	frame->prepare = prepare_schedule;
1834	frame->check = slf_check_repeat;	1930	frame->check = slf_check_repeat;
		1931
		1932	/* as a minor optimisation, we could unwind all stacks here */
		1933	/* but that puts extra pressure on pp_slf, and is not worth much */
		1934	/*coro_unwind_stacks (aTHX);*/
1835	}	1935	}
1836		1936
1837	/*****************************************************************************/	1937	/*****************************************************************************/
1838	/* async pool handler */	1938	/* async pool handler */
1839		1939
…		…
1917		2017
1918	static void	2018	static void
1919	coro_rouse_callback (pTHX_ CV *cv)	2019	coro_rouse_callback (pTHX_ CV *cv)
1920	{	2020	{
1921	dXSARGS;	2021	dXSARGS;
1922	SV *data = (SV *)GENSUB_ARG;	2022	SV *data = (SV *)S_GENSUB_ARG;
1923		2023
1924	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2024	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1925	{	2025	{
1926	/* first call, set args */	2026	/* first call, set args */
		2027	SV *coro = SvRV (data);
1927	AV *av = newAV ();	2028	AV *av = newAV ();
1928	SV *coro = SvRV (data);
1929		2029
1930	SvRV_set (data, (SV *)av);	2030	SvRV_set (data, (SV *)av);
1931	api_ready (aTHX_ coro);
1932	SvREFCNT_dec (coro);
1933		2031
1934	/* better take a full copy of the arguments */	2032	/* better take a full copy of the arguments */
1935	while (items--)	2033	while (items--)
1936	av_store (av, items, newSVsv (ST (items)));	2034	av_store (av, items, newSVsv (ST (items)));
		2035
		2036	api_ready (aTHX_ coro);
		2037	SvREFCNT_dec (coro);
1937	}	2038	}
1938		2039
1939	XSRETURN_EMPTY;	2040	XSRETURN_EMPTY;
1940	}	2041	}
1941		2042
…		…
1958		2059
1959	EXTEND (SP, AvFILLp (av) + 1);	2060	EXTEND (SP, AvFILLp (av) + 1);
1960	for (i = 0; i <= AvFILLp (av); ++i)	2061	for (i = 0; i <= AvFILLp (av); ++i)
1961	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2062	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1962		2063
1963	/* we have stolen the elements, so ste length to zero and free */	2064	/* we have stolen the elements, so set length to zero and free */
1964	AvFILLp (av) = -1;	2065	AvFILLp (av) = -1;
1965	av_undef (av);	2066	av_undef (av);
1966		2067
1967	PUTBACK;	2068	PUTBACK;
1968	}	2069	}
…		…
1992	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2093	|| SvTYPE (SvRV (cb)) != SVt_PVCV
1993	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2094	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1994	croak ("Coro::rouse_wait called with illegal callback argument,");	2095	croak ("Coro::rouse_wait called with illegal callback argument,");
1995		2096
1996	{	2097	{
1997	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2098	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1998	SV *data = (SV *)GENSUB_ARG;	2099	SV *data = (SV *)S_GENSUB_ARG;
1999		2100
2000	frame->data = (void *)data;	2101	frame->data = (void *)data;
2001	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2102	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2002	frame->check = slf_check_rouse_wait;	2103	frame->check = slf_check_rouse_wait;
2003	}	2104	}
…		…
2007	coro_new_rouse_cb (pTHX)	2108	coro_new_rouse_cb (pTHX)
2008	{	2109	{
2009	HV *hv = (HV *)SvRV (coro_current);	2110	HV *hv = (HV *)SvRV (coro_current);
2010	struct coro *coro = SvSTATE_hv (hv);	2111	struct coro *coro = SvSTATE_hv (hv);
2011	SV *data = newRV_inc ((SV *)hv);	2112	SV *data = newRV_inc ((SV *)hv);
2012	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2113	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2013		2114
2014	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2115	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2015	SvREFCNT_dec (data); /* magicext increases the refcount */	2116	SvREFCNT_dec (data); /* magicext increases the refcount */
2016		2117
2017	SvREFCNT_dec (coro->rouse_cb);	2118	SvREFCNT_dec (coro->rouse_cb);
…		…
2258		2359
2259	PL_op->op_ppaddr = pp_slf;	2360	PL_op->op_ppaddr = pp_slf;
2260	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2361	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2261		2362
2262	PL_op = (OP *)&slf_restore;	2363	PL_op = (OP *)&slf_restore;
		2364	}
		2365
		2366	/*****************************************************************************/
		2367	/* dynamic wind */
		2368
		2369	static void
		2370	on_enterleave_call (pTHX_ SV *cb)
		2371	{
		2372	dSP;
		2373
		2374	PUSHSTACK;
		2375
		2376	PUSHMARK (SP);
		2377	PUTBACK;
		2378	call_sv (cb, G_VOID | G_DISCARD);
		2379	SPAGAIN;
		2380
		2381	POPSTACK;
		2382	}
		2383
		2384	static SV *
		2385	coro_avp_pop_and_free (pTHX_ AV **avp)
		2386	{
		2387	AV *av = *avp;
		2388	SV *res = av_pop (av);
		2389
		2390	if (AvFILLp (av) < 0)
		2391	{
		2392	*avp = 0;
		2393	SvREFCNT_dec (av);
		2394	}
		2395
		2396	return res;
		2397	}
		2398
		2399	static void
		2400	coro_pop_on_enter (pTHX_ void *coro)
		2401	{
		2402	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2403	SvREFCNT_dec (cb);
		2404	}
		2405
		2406	static void
		2407	coro_pop_on_leave (pTHX_ void *coro)
		2408	{
		2409	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2410	on_enterleave_call (aTHX_ sv_2mortal (cb));
2263	}	2411	}
2264		2412
2265	/*****************************************************************************/	2413	/*****************************************************************************/
2266	/* PerlIO::cede */	2414	/* PerlIO::cede */
2267		2415
…		…
2341	/* Coro::Semaphore & Coro::Signal */	2489	/* Coro::Semaphore & Coro::Signal */
2342		2490
2343	static SV *	2491	static SV *
2344	coro_waitarray_new (pTHX_ int count)	2492	coro_waitarray_new (pTHX_ int count)
2345	{	2493	{
2346	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2494	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2347	AV *av = newAV ();	2495	AV *av = newAV ();
2348	SV **ary;	2496	SV **ary;
2349		2497
2350	/* unfortunately, building manually saves memory */	2498	/* unfortunately, building manually saves memory */
2351	Newx (ary, 2, SV *);	2499	Newx (ary, 2, SV *);
2352	AvALLOC (av) = ary;	2500	AvALLOC (av) = ary;
		2501	#if PERL_VERSION_ATLEAST (5,10,0)
2353	/*AvARRAY (av) = ary;*/	2502	AvARRAY (av) = ary;
		2503	#else
2354	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2504	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2505	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2506	SvPVX ((SV *)av) = (char *)ary;
		2507	#endif
2355	AvMAX (av) = 1;	2508	AvMAX (av) = 1;
2356	AvFILLp (av) = 0;	2509	AvFILLp (av) = 0;
2357	ary [0] = newSViv (count);	2510	ary [0] = newSViv (count);
2358		2511
2359	return newRV_noinc ((SV *)av);	2512	return newRV_noinc ((SV *)av);
…		…
2488	{	2641	{
2489	if (items >= 2)	2642	if (items >= 2)
2490	{	2643	{
2491	/* callback form */	2644	/* callback form */
2492	AV *av = (AV *)SvRV (arg [0]);	2645	AV *av = (AV *)SvRV (arg [0]);
2493	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2646	SV *cb_cv = s_get_cv_croak (arg [1]);
2494		2647
2495	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2648	av_push (av, SvREFCNT_inc_NN (cb_cv));
2496		2649
2497	if (SvIVX (AvARRAY (av)[0]) > 0)	2650	if (SvIVX (AvARRAY (av)[0]) > 0)
2498	coro_semaphore_adjust (aTHX_ av, 0);	2651	coro_semaphore_adjust (aTHX_ av, 0);
2499		2652
2500	frame->prepare = prepare_nop;	2653	frame->prepare = prepare_nop;
…		…
2524	AvARRAY (av)[0] = AvARRAY (av)[1];	2677	AvARRAY (av)[0] = AvARRAY (av)[1];
2525	AvARRAY (av)[1] = cb;	2678	AvARRAY (av)[1] = cb;
2526		2679
2527	cb = av_shift (av);	2680	cb = av_shift (av);
2528		2681
		2682	if (SvTYPE (cb) == SVt_PVCV)
		2683	{
		2684	dSP;
		2685	PUSHMARK (SP);
		2686	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2687	PUTBACK;
		2688	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2689	}
		2690	else
		2691	{
2529	api_ready (aTHX_ cb);	2692	api_ready (aTHX_ cb);
2530	sv_setiv (cb, 0); /* signal waiter */	2693	sv_setiv (cb, 0); /* signal waiter */
		2694	}
		2695
2531	SvREFCNT_dec (cb);	2696	SvREFCNT_dec (cb);
2532		2697
2533	--count;	2698	--count;
2534	}	2699	}
2535	}	2700	}
…		…
2544	static void	2709	static void
2545	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2710	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2546	{	2711	{
2547	AV *av = (AV *)SvRV (arg [0]);	2712	AV *av = (AV *)SvRV (arg [0]);
2548		2713
		2714	if (items >= 2)
		2715	{
		2716	SV *cb_cv = s_get_cv_croak (arg [1]);
		2717	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2718
2549	if (SvIVX (AvARRAY (av)[0]))	2719	if (SvIVX (AvARRAY (av)[0]))
		2720	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
		2721
		2722	frame->prepare = prepare_nop;
		2723	frame->check = slf_check_nop;
		2724	}
		2725	else if (SvIVX (AvARRAY (av)[0]))
2550	{	2726	{
2551	SvIVX (AvARRAY (av)[0]) = 0;	2727	SvIVX (AvARRAY (av)[0]) = 0;
2552	frame->prepare = prepare_nop;	2728	frame->prepare = prepare_nop;
2553	frame->check = slf_check_nop;	2729	frame->check = slf_check_nop;
2554	}	2730	}
2555	else	2731	else
2556	{	2732	{
2557	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2733	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2558		2734
2559	av_push (av, waiter);	2735	av_push (av, waiter);
2560		2736
2561	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2737	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2562	frame->prepare = prepare_schedule;	2738	frame->prepare = prepare_schedule;
…		…
2580		2756
2581	static void	2757	static void
2582	coro_aio_callback (pTHX_ CV *cv)	2758	coro_aio_callback (pTHX_ CV *cv)
2583	{	2759	{
2584	dXSARGS;	2760	dXSARGS;
2585	AV *state = (AV *)GENSUB_ARG;	2761	AV *state = (AV *)S_GENSUB_ARG;
2586	SV *coro = av_pop (state);	2762	SV *coro = av_pop (state);
2587	SV *data_sv = newSV (sizeof (struct io_state));	2763	SV *data_sv = newSV (sizeof (struct io_state));
2588		2764
2589	av_extend (state, items - 1);	2765	av_extend (state, items - 1);
2590		2766
…		…
2704		2880
2705	for (i = 0; i < items; ++i)	2881	for (i = 0; i < items; ++i)
2706	PUSHs (arg [i]);	2882	PUSHs (arg [i]);
2707		2883
2708	/* now push the callback closure */	2884	/* now push the callback closure */
2709	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	2885	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2710		2886
2711	/* now call the AIO function - we assume our request is uncancelable */	2887	/* now call the AIO function - we assume our request is uncancelable */
2712	PUTBACK;	2888	PUTBACK;
2713	call_sv ((SV *)req, G_VOID | G_DISCARD);	2889	call_sv ((SV *)req, G_VOID | G_DISCARD);
2714	}	2890	}
…		…
2746	coro_thx = PERL_GET_CONTEXT;	2922	coro_thx = PERL_GET_CONTEXT;
2747	# endif	2923	# endif
2748	#endif	2924	#endif
2749	BOOT_PAGESIZE;	2925	BOOT_PAGESIZE;
2750		2926
		2927	cctx_current = cctx_new_empty ();
		2928
2751	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2929	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2752	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2930	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2753		2931
2754	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2932	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2755	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	2933	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2799		2977
2800	if (!svp) croak ("Time::HiRes is required");	2978	if (!svp) croak ("Time::HiRes is required");
2801	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	2979	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2802		2980
2803	nvtime = INT2PTR (double (*)(), SvIV (*svp));	2981	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		2982
		2983	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		2984	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2804	}	2985	}
2805		2986
2806	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2987	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2807	}	2988	}
2808		2989
2809	SV *	2990	SV *
2810	new (char *klass, ...)	2991	new (char *klass, ...)
2811	ALIAS:	2992	ALIAS:
…		…
2813	CODE:	2994	CODE:
2814	{	2995	{
2815	struct coro *coro;	2996	struct coro *coro;
2816	MAGIC *mg;	2997	MAGIC *mg;
2817	HV *hv;	2998	HV *hv;
2818	CV *cb;	2999	SV *cb;
2819	int i;	3000	int i;
2820		3001
2821	if (items > 1)	3002	if (items > 1)
2822	{	3003	{
2823	cb = coro_sv_2cv (aTHX_ ST (1));	3004	cb = s_get_cv_croak (ST (1));
2824		3005
2825	if (!ix)	3006	if (!ix)
2826	{	3007	{
2827	if (CvISXSUB (cb))	3008	if (CvISXSUB (cb))
2828	croak ("Coro::State doesn't support XS functions as coroutine start, caught");	3009	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
…		…
2850	av_extend (coro->args, items - 1 + ix - 1);	3031	av_extend (coro->args, items - 1 + ix - 1);
2851		3032
2852	if (ix)	3033	if (ix)
2853	{	3034	{
2854	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));	3035	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2855	cb = cv_coro_run;	3036	cb = (SV *)cv_coro_run;
2856	}	3037	}
2857		3038
2858	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);	3039	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2859		3040
2860	for (i = 2; i < items; i++)	3041	for (i = 2; i < items; i++)
…		…
2881	_exit (int code)	3062	_exit (int code)
2882	PROTOTYPE: $	3063	PROTOTYPE: $
2883	CODE:	3064	CODE:
2884	_exit (code);	3065	_exit (code);
2885		3066
2886	#if CORO_CLONE
2887
2888	SV *	3067	SV *
2889	clone (Coro::State coro)	3068	clone (Coro::State coro)
2890	CODE:	3069	CODE:
2891	{	3070	{
		3071	#if CORO_CLONE
2892	struct coro *ncoro = coro_clone (coro);	3072	struct coro *ncoro = coro_clone (aTHX_ coro);
2893	MAGIC *mg;	3073	MAGIC *mg;
2894	/* TODO: too much duplication */	3074	/* TODO: too much duplication */
2895	ncoro->hv = newHV ();	3075	ncoro->hv = newHV ();
2896	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);	3076	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2897	mg->mg_flags |= MGf_DUP;	3077	mg->mg_flags |= MGf_DUP;
2898	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));	3078	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		3079	#else
		3080	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		3081	#endif
2899	}	3082	}
2900	OUTPUT:	3083	OUTPUT:
2901	RETVAL	3084	RETVAL
2902
2903	#endif
2904		3085
2905	int	3086	int
2906	cctx_stacksize (int new_stacksize = 0)	3087	cctx_stacksize (int new_stacksize = 0)
2907	PROTOTYPE: ;$	3088	PROTOTYPE: ;$
2908	CODE:	3089	CODE:
…		…
2958	eval = 1	3139	eval = 1
2959	CODE:	3140	CODE:
2960	{	3141	{
2961	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3142	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2962	{	3143	{
2963	struct coro temp;	3144	struct coro *current = SvSTATE_current;
2964		3145
2965	if (!(coro->flags & CF_RUNNING))	3146	if (current != coro)
2966	{	3147	{
2967	PUTBACK;	3148	PUTBACK;
2968	save_perl (aTHX_ &temp);	3149	save_perl (aTHX_ current);
2969	load_perl (aTHX_ coro);	3150	load_perl (aTHX_ coro);
		3151	SPAGAIN;
2970	}	3152	}
2971		3153
2972	{
2973	dSP;
2974	ENTER;
2975	SAVETMPS;
2976	PUTBACK;
2977	PUSHSTACK;	3154	PUSHSTACK;
		3155
2978	PUSHMARK (SP);	3156	PUSHMARK (SP);
		3157	PUTBACK;
2979		3158
2980	if (ix)	3159	if (ix)
2981	eval_sv (coderef, 0);	3160	eval_sv (coderef, 0);
2982	else	3161	else
2983	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3162	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2984		3163
2985	POPSTACK;	3164	POPSTACK;
2986	SPAGAIN;	3165	SPAGAIN;
2987	FREETMPS;
2988	LEAVE;
2989	PUTBACK;
2990	}
2991		3166
2992	if (!(coro->flags & CF_RUNNING))	3167	if (current != coro)
2993	{	3168	{
		3169	PUTBACK;
2994	save_perl (aTHX_ coro);	3170	save_perl (aTHX_ coro);
2995	load_perl (aTHX_ &temp);	3171	load_perl (aTHX_ current);
2996	SPAGAIN;	3172	SPAGAIN;
2997	}	3173	}
2998	}	3174	}
2999	}	3175	}
3000		3176
…		…
3004	ALIAS:	3180	ALIAS:
3005	is_ready = CF_READY	3181	is_ready = CF_READY
3006	is_running = CF_RUNNING	3182	is_running = CF_RUNNING
3007	is_new = CF_NEW	3183	is_new = CF_NEW
3008	is_destroyed = CF_DESTROYED	3184	is_destroyed = CF_DESTROYED
		3185	is_suspended = CF_SUSPENDED
3009	CODE:	3186	CODE:
3010	RETVAL = boolSV (coro->flags & ix);	3187	RETVAL = boolSV (coro->flags & ix);
3011	OUTPUT:	3188	OUTPUT:
3012	RETVAL	3189	RETVAL
3013		3190
…		…
3017	CODE:	3194	CODE:
3018	{	3195	{
3019	struct coro *current = SvSTATE_current;	3196	struct coro *current = SvSTATE_current;
3020	SV **throwp = self == current ? &CORO_THROW : &self->except;	3197	SV **throwp = self == current ? &CORO_THROW : &self->except;
3021	SvREFCNT_dec (*throwp);	3198	SvREFCNT_dec (*throwp);
		3199	SvGETMAGIC (throw);
3022	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3200	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
3023	}	3201	}
3024		3202
3025	void	3203	void
3026	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3204	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
…		…
3029		3207
3030	SV *	3208	SV *
3031	has_cctx (Coro::State coro)	3209	has_cctx (Coro::State coro)
3032	PROTOTYPE: $	3210	PROTOTYPE: $
3033	CODE:	3211	CODE:
3034	RETVAL = boolSV (!!coro->cctx);	3212	/* maybe manage the running flag differently */
		3213	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
3035	OUTPUT:	3214	OUTPUT:
3036	RETVAL	3215	RETVAL
3037		3216
3038	int	3217	int
3039	is_traced (Coro::State coro)	3218	is_traced (Coro::State coro)
…		…
3059		3238
3060	void	3239	void
3061	force_cctx ()	3240	force_cctx ()
3062	PROTOTYPE:	3241	PROTOTYPE:
3063	CODE:	3242	CODE:
3064	SvSTATE_current->cctx->idle_sp = 0;	3243	cctx_current->idle_sp = 0;
3065		3244
3066	void	3245	void
3067	swap_defsv (Coro::State self)	3246	swap_defsv (Coro::State self)
3068	PROTOTYPE: $	3247	PROTOTYPE: $
3069	ALIAS:	3248	ALIAS:
…		…
3077	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3256	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3078		3257
3079	SV *tmp = *src; *src = *dst; *dst = tmp;	3258	SV *tmp = *src; *src = *dst; *dst = tmp;
3080	}	3259	}
3081		3260
		3261	void
		3262	cancel (Coro::State self)
		3263	CODE:
		3264	coro_state_destroy (aTHX_ self);
		3265	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3266
		3267
		3268	SV *
		3269	enable_times (int enabled = enable_times)
		3270	CODE:
		3271	{
		3272	RETVAL = boolSV (enable_times);
		3273
		3274	if (enabled != enable_times)
		3275	{
		3276	enable_times = enabled;
		3277
		3278	coro_times_update ();
		3279	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3280	}
		3281	}
		3282	OUTPUT:
		3283	RETVAL
		3284
		3285	void
		3286	times (Coro::State self)
		3287	PPCODE:
		3288	{
		3289	struct coro *current = SvSTATE (coro_current);
		3290
		3291	if (expect_false (current == self))
		3292	{
		3293	coro_times_update ();
		3294	coro_times_add (SvSTATE (coro_current));
		3295	}
		3296
		3297	EXTEND (SP, 2);
		3298	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3299	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3300
		3301	if (expect_false (current == self))
		3302	coro_times_sub (SvSTATE (coro_current));
		3303	}
3082		3304
3083	MODULE = Coro::State PACKAGE = Coro	3305	MODULE = Coro::State PACKAGE = Coro
3084		3306
3085	BOOT:	3307	BOOT:
3086	{	3308	{
3087	int i;
3088
3089	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3309	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3090	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3310	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3091	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3311	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3092	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3312	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3093	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3313	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3094	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3314	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3095	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3315	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3096	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3316	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3317	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3097		3318
3098	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3319	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3099	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3320	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3100	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3321	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3101	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3322	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
3102		3323
3103	coro_stash = gv_stashpv ("Coro", TRUE);	3324	coro_stash = gv_stashpv ("Coro", TRUE);
3104		3325
3105	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3326	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3106	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3327	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3107	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3328	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3108	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3329	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3109	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3330	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3110	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3331	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3111
3112	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3113	coro_ready[i] = newAV ();
3114		3332
3115	{	3333	{
3116	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3334	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3117		3335
3118	coroapi.schedule = api_schedule;	3336	coroapi.schedule = api_schedule;
…		…
3159	cede_notself (...)	3377	cede_notself (...)
3160	CODE:	3378	CODE:
3161	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3379	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3162		3380
3163	void	3381	void
3164	_cancel (Coro::State self)
3165	CODE:
3166	coro_state_destroy (aTHX_ self);
3167	coro_call_on_destroy (aTHX_ self);
3168
3169	void
3170	_set_current (SV *current)	3382	_set_current (SV *current)
3171	PROTOTYPE: $	3383	PROTOTYPE: $
3172	CODE:	3384	CODE:
3173	SvREFCNT_dec (SvRV (coro_current));	3385	SvREFCNT_dec (SvRV (coro_current));
3174	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));	3386	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
…		…
3176	void	3388	void
3177	_set_readyhook (SV *hook)	3389	_set_readyhook (SV *hook)
3178	PROTOTYPE: $	3390	PROTOTYPE: $
3179	CODE:	3391	CODE:
3180	SvREFCNT_dec (coro_readyhook);	3392	SvREFCNT_dec (coro_readyhook);
		3393	SvGETMAGIC (hook);
		3394	if (SvOK (hook))
		3395	{
3181	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3396	coro_readyhook = newSVsv (hook);
		3397	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3398	}
		3399	else
		3400	{
		3401	coro_readyhook = 0;
		3402	CORO_READYHOOK = 0;
		3403	}
3182		3404
3183	int	3405	int
3184	prio (Coro::State coro, int newprio = 0)	3406	prio (Coro::State coro, int newprio = 0)
3185	PROTOTYPE: $;$	3407	PROTOTYPE: $;$
3186	ALIAS:	3408	ALIAS:
…		…
3192	if (items > 1)	3414	if (items > 1)
3193	{	3415	{
3194	if (ix)	3416	if (ix)
3195	newprio = coro->prio - newprio;	3417	newprio = coro->prio - newprio;
3196		3418
3197	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3419	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3198	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3420	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3199		3421
3200	coro->prio = newprio;	3422	coro->prio = newprio;
3201	}	3423	}
3202	}	3424	}
3203	OUTPUT:	3425	OUTPUT:
…		…
3216	PROTOTYPE:	3438	PROTOTYPE:
3217	CODE:	3439	CODE:
3218	RETVAL = coro_nready;	3440	RETVAL = coro_nready;
3219	OUTPUT:	3441	OUTPUT:
3220	RETVAL	3442	RETVAL
		3443
		3444	void
		3445	suspend (Coro::State self)
		3446	PROTOTYPE: $
		3447	CODE:
		3448	self->flags |= CF_SUSPENDED;
		3449
		3450	void
		3451	resume (Coro::State self)
		3452	PROTOTYPE: $
		3453	CODE:
		3454	self->flags &= ~CF_SUSPENDED;
3221		3455
3222	void	3456	void
3223	_pool_handler (...)	3457	_pool_handler (...)
3224	CODE:	3458	CODE:
3225	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3459	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
…		…
3280	rouse_wait (...)	3514	rouse_wait (...)
3281	PROTOTYPE: ;$	3515	PROTOTYPE: ;$
3282	PPCODE:	3516	PPCODE:
3283	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3517	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3284		3518
		3519	void
		3520	on_enter (SV *block)
		3521	ALIAS:
		3522	on_leave = 1
		3523	PROTOTYPE: &
		3524	CODE:
		3525	{
		3526	struct coro *coro = SvSTATE_current;
		3527	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3528
		3529	block = s_get_cv_croak (block);
		3530
		3531	if (!*avp)
		3532	*avp = newAV ();
		3533
		3534	av_push (*avp, SvREFCNT_inc (block));
		3535
		3536	if (!ix)
		3537	on_enterleave_call (aTHX_ block);
		3538
		3539	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3540	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3541	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3542	}
		3543
3285		3544
3286	MODULE = Coro::State PACKAGE = PerlIO::cede	3545	MODULE = Coro::State PACKAGE = PerlIO::cede
3287		3546
3288	BOOT:	3547	BOOT:
3289	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3548	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3292	MODULE = Coro::State PACKAGE = Coro::Semaphore	3551	MODULE = Coro::State PACKAGE = Coro::Semaphore
3293		3552
3294	SV *	3553	SV *
3295	new (SV *klass, SV *count = 0)	3554	new (SV *klass, SV *count = 0)
3296	CODE:	3555	CODE:
		3556	{
		3557	int semcnt = 1;
		3558
		3559	if (count)
		3560	{
		3561	SvGETMAGIC (count);
		3562
		3563	if (SvOK (count))
		3564	semcnt = SvIV (count);
		3565	}
		3566
3297	RETVAL = sv_bless (	3567	RETVAL = sv_bless (
3298	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3568	coro_waitarray_new (aTHX_ semcnt),
3299	GvSTASH (CvGV (cv))	3569	GvSTASH (CvGV (cv))
3300	);	3570	);
		3571	}
3301	OUTPUT:	3572	OUTPUT:
3302	RETVAL	3573	RETVAL
3303		3574
3304	# helper for Coro::Channel	3575	# helper for Coro::Channel and others
3305	SV *	3576	SV *
3306	_alloc (int count)	3577	_alloc (int count)
3307	CODE:	3578	CODE:
3308	RETVAL = coro_waitarray_new (aTHX_ count);	3579	RETVAL = coro_waitarray_new (aTHX_ count);
3309	OUTPUT:	3580	OUTPUT:
…		…
3367	for (i = 1; i <= wcount; ++i)	3638	for (i = 1; i <= wcount; ++i)
3368	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3639	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3369	}	3640	}
3370	}	3641	}
3371		3642
		3643	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3644
		3645	void
		3646	_may_delete (SV *sem, int count, int extra_refs)
		3647	PPCODE:
		3648	{
		3649	AV *av = (AV *)SvRV (sem);
		3650
		3651	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3652	&& AvFILLp (av) == 0 /* no waiters, just count */
		3653	&& SvIV (AvARRAY (av)[0]) == count)
		3654	XSRETURN_YES;
		3655
		3656	XSRETURN_NO;
		3657	}
		3658
3372	MODULE = Coro::State PACKAGE = Coro::Signal	3659	MODULE = Coro::State PACKAGE = Coro::Signal
3373		3660
3374	SV *	3661	SV *
3375	new (SV *klass)	3662	new (SV *klass)
3376	CODE:	3663	CODE:
…		…
3447		3734
3448	void	3735	void
3449	_register (char *target, char *proto, SV *req)	3736	_register (char *target, char *proto, SV *req)
3450	CODE:	3737	CODE:
3451	{	3738	{
3452	CV *req_cv = coro_sv_2cv (aTHX_ req);	3739	SV *req_cv = s_get_cv_croak (req);
3453	/* newXSproto doesn't return the CV on 5.8 */	3740	/* newXSproto doesn't return the CV on 5.8 */
3454	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3741	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3455	sv_setpv ((SV *)slf_cv, proto);	3742	sv_setpv ((SV *)slf_cv, proto);
3456	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3743	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3457	}	3744	}
3458		3745
		3746	MODULE = Coro::State PACKAGE = Coro::Select
		3747
		3748	void
		3749	patch_pp_sselect ()
		3750	CODE:
		3751	if (!coro_old_pp_sselect)
		3752	{
		3753	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3754	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3755	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3756	}
		3757
		3758	void
		3759	unpatch_pp_sselect ()
		3760	CODE:
		3761	if (coro_old_pp_sselect)
		3762	{
		3763	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3764	coro_old_pp_sselect = 0;
		3765	}
		3766
		3767

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