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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.319 by root, Thu Nov 20 07:25:01 2008 UTC vs.
Revision 1.363 by root, Tue Jul 14 00:55:10 2009 UTC

…		…
6	#include "EXTERN.h"	6	#include "EXTERN.h"
7	#include "perl.h"	7	#include "perl.h"
8	#include "XSUB.h"	8	#include "XSUB.h"
9	#include "perliol.h"	9	#include "perliol.h"
10		10
11	#include "patchlevel.h"	11	#include "schmorp.h"
12		12
13	#include <stdio.h>	13	#include <stdio.h>
14	#include <errno.h>	14	#include <errno.h>
15	#include <assert.h>	15	#include <assert.h>
16		16
…		…
51	#endif	51	#endif
52		52
53	/* the maximum number of idle cctx that will be pooled */	53	/* the maximum number of idle cctx that will be pooled */
54	static int cctx_max_idle = 4;	54	static int cctx_max_idle = 4;
55		55
56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr
65	# endif
66	# ifndef call_sv
67	# define call_sv perl_call_sv
68	# endif
69	# ifndef get_sv
70	# define get_sv perl_get_sv
71	# endif
72	# ifndef get_cv
73	# define get_cv perl_get_cv
74	# endif
75	# ifndef IS_PADGV
76	# define IS_PADGV(v) 0
77	# endif
78	# ifndef IS_PADCONST
79	# define IS_PADCONST(v) 0
80	# endif
81	#endif
82
83	/* 5.11 */
84	#ifndef CxHASARGS
85	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86	#endif
87
88	/* 5.10.0 */
89	#ifndef SvREFCNT_inc_NN
90	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91	#endif
92
93	/* 5.8.8 */
94	#ifndef GV_NOTQUAL
95	# define GV_NOTQUAL 0
96	#endif
97	#ifndef newSV
98	# define newSV(l) NEWSV(0,l)
99	#endif
100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv
102	#endif
103	#ifndef CvISXSUB
104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105	#endif
106
107	/* 5.8.7 */
108	#ifndef SvRV_set
109	# define SvRV_set(s,v) SvRV(s) = (v)
110	#endif
111
112	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	56	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
113	# undef CORO_STACKGUARD	57	# undef CORO_STACKGUARD
114	#endif	58	#endif
115		59
116	#ifndef CORO_STACKGUARD	60	#ifndef CORO_STACKGUARD
…		…
130	#else	74	#else
131	# define dSTACKLEVEL volatile void *stacklevel	75	# define dSTACKLEVEL volatile void *stacklevel
132	# define STACKLEVEL ((void *)&stacklevel)	76	# define STACKLEVEL ((void *)&stacklevel)
133	#endif	77	#endif
134		78
135	#define IN_DESTRUCT (PL_main_cv == Nullcv)	79	#define IN_DESTRUCT PL_dirty
136		80
137	#if __GNUC__ >= 3	81	#if __GNUC__ >= 3
138	# define attribute(x) __attribute__(x)	82	# define attribute(x) __attribute__(x)
139	# define expect(expr,value) __builtin_expect ((expr),(value))	83	# define expect(expr,value) __builtin_expect ((expr), (value))
140	# define INLINE static inline	84	# define INLINE static inline
141	#else	85	#else
142	# define attribute(x)	86	# define attribute(x)
143	# define expect(expr,value) (expr)	87	# define expect(expr,value) (expr)
144	# define INLINE static	88	# define INLINE static
…		…
156	# if CORO_PTHREAD	100	# if CORO_PTHREAD
157	static void *coro_thx;	101	static void *coro_thx;
158	# endif	102	# endif
159	#endif	103	#endif
160		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
161	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]);
162		117
163	/* we hijack an hopefully unused CV flag for our purposes */	118	/* we hijack an hopefully unused CV flag for our purposes */
164	#define CVf_SLF 0x4000	119	#define CVf_SLF 0x4000
165	static OP *pp_slf (pTHX);	120	static OP *pp_slf (pTHX);
166		121
…		…
172	static HV *coro_state_stash, *coro_stash;	127	static HV *coro_state_stash, *coro_stash;
173	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 */
174		129
175	static AV *av_destroy; /* destruction queue */	130	static AV *av_destroy; /* destruction queue */
176	static SV *sv_manager; /* the manager coro */	131	static SV *sv_manager; /* the manager coro */
		132	static SV *sv_idle; /* $Coro::idle */
177		133
178	static GV *irsgv; /* $/ */	134	static GV *irsgv; /* $/ */
179	static GV *stdoutgv; /* *STDOUT */	135	static GV *stdoutgv; /* *STDOUT */
180	static SV *rv_diehook;	136	static SV *rv_diehook;
181	static SV *rv_warnhook;	137	static SV *rv_warnhook;
…		…
191	static CV *cv_coro_state_new;	147	static CV *cv_coro_state_new;
192		148
193	/* Coro::AnyEvent */	149	/* Coro::AnyEvent */
194	static SV *sv_activity;	150	static SV *sv_activity;
195		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
196	static struct coro_cctx *cctx_first;	158	static struct coro_cctx *cctx_first;
197	static int cctx_count, cctx_idle;	159	static int cctx_count, cctx_idle;
198		160
199	enum {	161	enum {
200	CC_MAPPED = 0x01,	162	CC_MAPPED = 0x01,
…		…
225	int valgrind_id;	187	int valgrind_id;
226	#endif	188	#endif
227	unsigned char flags;	189	unsigned char flags;
228	} coro_cctx;	190	} coro_cctx;
229		191
		192	coro_cctx *cctx_current; /* the currently running cctx */
		193
		194	/*****************************************************************************/
		195
230	enum {	196	enum {
231	CF_RUNNING = 0x0001, /* coroutine is running */	197	CF_RUNNING = 0x0001, /* coroutine is running */
232	CF_READY = 0x0002, /* coroutine is ready */	198	CF_READY = 0x0002, /* coroutine is ready */
233	CF_NEW = 0x0004, /* has never been switched to */	199	CF_NEW = 0x0004, /* has never been switched to */
234	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 */
235	};	202	};
236		203
237	/* 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 */
238	typedef struct	205	typedef struct
239	{	206	{
240	SV *defsv;	207	SV *defsv;
241	AV *defav;	208	AV *defav;
242	SV *errsv;	209	SV *errsv;
243	SV *irsgv;	210	SV *irsgv;
		211	HV *hinthv;
244	#define VAR(name,type) type name;	212	#define VAR(name,type) type name;
245	# include "state.h"	213	# include "state.h"
246	#undef VAR	214	#undef VAR
247	} perl_slots;	215	} perl_slots;
248		216
…		…
250		218
251	/* this is a structure representing a perl-level coroutine */	219	/* this is a structure representing a perl-level coroutine */
252	struct coro {	220	struct coro {
253	/* the C coroutine allocated to this perl coroutine, if any */	221	/* the C coroutine allocated to this perl coroutine, if any */
254	coro_cctx *cctx;	222	coro_cctx *cctx;
		223
		224	/* ready queue */
		225	struct coro *next_ready;
255		226
256	/* state data */	227	/* state data */
257	struct CoroSLF slf_frame; /* saved slf frame */	228	struct CoroSLF slf_frame; /* saved slf frame */
258	AV *mainstack;	229	AV *mainstack;
259	perl_slots *slot; /* basically the saved sp */	230	perl_slots *slot; /* basically the saved sp */
…		…
276	/* async_pool */	247	/* async_pool */
277	SV *saved_deffh;	248	SV *saved_deffh;
278	SV *invoke_cb;	249	SV *invoke_cb;
279	AV *invoke_av;	250	AV *invoke_av;
280		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
281	/* linked list */	259	/* linked list */
282	struct coro *next, *prev;	260	struct coro *next, *prev;
283	};	261	};
284		262
285	typedef struct coro *Coro__State;	263	typedef struct coro *Coro__State;
…		…
290	/* the mainr easonw e don't support windows process emulation */	268	/* the mainr easonw e don't support windows process emulation */
291	static struct CoroSLF slf_frame; /* the current slf frame */	269	static struct CoroSLF slf_frame; /* the current slf frame */
292		270
293	/** Coro ********************************************************************/	271	/** Coro ********************************************************************/
294		272
295	#define PRIO_MAX 3	273	#define CORO_PRIO_MAX 3
296	#define PRIO_HIGH 1	274	#define CORO_PRIO_HIGH 1
297	#define PRIO_NORMAL 0	275	#define CORO_PRIO_NORMAL 0
298	#define PRIO_LOW -1	276	#define CORO_PRIO_LOW -1
299	#define PRIO_IDLE -3	277	#define CORO_PRIO_IDLE -3
300	#define PRIO_MIN -4	278	#define CORO_PRIO_MIN -4
301		279
302	/* for Coro.pm */	280	/* for Coro.pm */
303	static SV *coro_current;	281	static SV *coro_current;
304	static SV *coro_readyhook;	282	static SV *coro_readyhook;
305	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 */
306	static CV *cv_coro_run, *cv_coro_terminate;	284	static CV *cv_coro_run, *cv_coro_terminate;
307	static struct coro *coro_first;	285	static struct coro *coro_first;
308	#define coro_nready coroapi.nready	286	#define coro_nready coroapi.nready
309		287
310	/** lowlevel stuff **********************************************************/	288	/** lowlevel stuff **********************************************************/
…		…
337	get_hv (name, create);	315	get_hv (name, create);
338	#endif	316	#endif
339	return get_hv (name, create);	317	return get_hv (name, create);
340	}	318	}
341		319
342	/* may croak */	320	INLINE void
343	INLINE CV *	321	coro_times_update ()
344	coro_sv_2cv (pTHX_ SV *sv)
345	{	322	{
		323	#ifdef coro_clock_gettime
		324	struct timespec ts;
		325
		326	ts.tv_sec = ts.tv_nsec = 0;
		327	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		328	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
		329
		330	ts.tv_sec = ts.tv_nsec = 0;
		331	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		332	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		333	#else
		334	dTHX;
		335	UV tv[2];
		336
		337	u2time (aTHX_ tv);
		338	time_real [0] = tv [0];
		339	time_real [1] = tv [1] * 1000;
		340	#endif
		341	}
		342
		343	INLINE void
		344	coro_times_add (struct coro *c)
		345	{
		346	c->t_real [1] += time_real [1];
		347	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		348	c->t_real [0] += time_real [0];
		349
		350	c->t_cpu [1] += time_cpu [1];
		351	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		352	c->t_cpu [0] += time_cpu [0];
		353	}
		354
		355	INLINE void
		356	coro_times_sub (struct coro *c)
		357	{
		358	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		359	c->t_real [1] -= time_real [1];
		360	c->t_real [0] -= time_real [0];
		361
		362	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		363	c->t_cpu [1] -= time_cpu [1];
		364	c->t_cpu [0] -= time_cpu [0];
		365	}
		366
		367	/*****************************************************************************/
		368	/* magic glue */
		369
		370	#define CORO_MAGIC_type_cv 26
		371	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		372
		373	#define CORO_MAGIC_NN(sv, type) \
		374	(expect_true (SvMAGIC (sv)->mg_type == type) \
		375	? SvMAGIC (sv) \
		376	: mg_find (sv, type))
		377
		378	#define CORO_MAGIC(sv, type) \
		379	(expect_true (SvMAGIC (sv)) \
		380	? CORO_MAGIC_NN (sv, type) \
		381	: 0)
		382
		383	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		384	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		385
		386	INLINE struct coro *
		387	SvSTATE_ (pTHX_ SV *coro)
		388	{
346	HV *st;	389	HV *stash;
347	GV *gvp;	390	MAGIC *mg;
348	return sv_2cv (sv, &st, &gvp, 0);	391
		392	if (SvROK (coro))
		393	coro = SvRV (coro);
		394
		395	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		396	croak ("Coro::State object required");
		397
		398	stash = SvSTASH (coro);
		399	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		400	{
		401	/* very slow, but rare, check */
		402	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		403	croak ("Coro::State object required");
		404	}
		405
		406	mg = CORO_MAGIC_state (coro);
		407	return (struct coro *)mg->mg_ptr;
349	}	408	}
		409
		410	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		411
		412	/* faster than SvSTATE, but expects a coroutine hv */
		413	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		414	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		415
		416	/*****************************************************************************/
		417	/* padlist management and caching */
350		418
351	static AV *	419	static AV *
352	coro_clone_padlist (pTHX_ CV *cv)	420	coro_derive_padlist (pTHX_ CV *cv)
353	{	421	{
354	AV *padlist = CvPADLIST (cv);	422	AV *padlist = CvPADLIST (cv);
355	AV *newpadlist, *newpad;	423	AV *newpadlist, *newpad;
356		424
357	newpadlist = newAV ();	425	newpadlist = newAV ();
…		…
362	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	430	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
363	#endif	431	#endif
364	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	432	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
365	--AvFILLp (padlist);	433	--AvFILLp (padlist);
366		434
367	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	435	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
368	av_store (newpadlist, 1, (SV *)newpad);	436	av_store (newpadlist, 1, (SV *)newpad);
369		437
370	return newpadlist;	438	return newpadlist;
371	}	439	}
372		440
373	static void	441	static void
374	free_padlist (pTHX_ AV *padlist)	442	free_padlist (pTHX_ AV *padlist)
375	{	443	{
376	/* may be during global destruction */	444	/* may be during global destruction */
377	if (SvREFCNT (padlist))	445	if (!IN_DESTRUCT)
378	{	446	{
379	I32 i = AvFILLp (padlist);	447	I32 i = AvFILLp (padlist);
380	while (i >= 0)	448
		449	while (i > 0) /* special-case index 0 */
381	{	450	{
382	SV **svp = av_fetch (padlist, i--, FALSE);	451	/* we try to be extra-careful here */
383	if (svp)	452	AV *av = (AV *)AvARRAY (padlist)[i--];
384	{	453	I32 j = AvFILLp (av);
385	SV *sv;	454
386	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	455	while (j >= 0)
		456	SvREFCNT_dec (AvARRAY (av)[j--]);
		457
		458	AvFILLp (av) = -1;
387	SvREFCNT_dec (sv);	459	SvREFCNT_dec (av);
388
389	SvREFCNT_dec (*svp);
390	}
391	}	460	}
392		461
		462	SvREFCNT_dec (AvARRAY (padlist)[0]);
		463
		464	AvFILLp (padlist) = -1;
393	SvREFCNT_dec ((SV*)padlist);	465	SvREFCNT_dec ((SV*)padlist);
394	}	466	}
395	}	467	}
396		468
397	static int	469	static int
398	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	470	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
399	{	471	{
400	AV *padlist;	472	AV *padlist;
401	AV *av = (AV *)mg->mg_obj;	473	AV *av = (AV *)mg->mg_obj;
		474
		475	/* perl manages to free our internal AV and _then_ call us */
		476	if (IN_DESTRUCT)
		477	return 0;
402		478
403	/* casting is fun. */	479	/* casting is fun. */
404	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	480	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
405	free_padlist (aTHX_ padlist);	481	free_padlist (aTHX_ padlist);
406		482
407	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	483	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
408		484
409	return 0;	485	return 0;
410	}	486	}
411
412	#define CORO_MAGIC_type_cv 26
413	#define CORO_MAGIC_type_state PERL_MAGIC_ext
414		487
415	static MGVTBL coro_cv_vtbl = {	488	static MGVTBL coro_cv_vtbl = {
416	0, 0, 0, 0,	489	0, 0, 0, 0,
417	coro_cv_free	490	coro_cv_free
418	};	491	};
419
420	#define CORO_MAGIC_NN(sv, type) \
421	(expect_true (SvMAGIC (sv)->mg_type == type) \
422	? SvMAGIC (sv) \
423	: mg_find (sv, type))
424
425	#define CORO_MAGIC(sv, type) \
426	(expect_true (SvMAGIC (sv)) \
427	? CORO_MAGIC_NN (sv, type) \
428	: 0)
429
430	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
431	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
432
433	INLINE struct coro *
434	SvSTATE_ (pTHX_ SV *coro)
435	{
436	HV *stash;
437	MAGIC *mg;
438
439	if (SvROK (coro))
440	coro = SvRV (coro);
441
442	if (expect_false (SvTYPE (coro) != SVt_PVHV))
443	croak ("Coro::State object required");
444
445	stash = SvSTASH (coro);
446	if (expect_false (stash != coro_stash && stash != coro_state_stash))
447	{
448	/* very slow, but rare, check */
449	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
450	croak ("Coro::State object required");
451	}
452
453	mg = CORO_MAGIC_state (coro);
454	return (struct coro *)mg->mg_ptr;
455	}
456
457	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
458
459	/* faster than SvSTATE, but expects a coroutine hv */
460	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
461	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
462		492
463	/* the next two functions merely cache the padlists */	493	/* the next two functions merely cache the padlists */
464	static void	494	static void
465	get_padlist (pTHX_ CV *cv)	495	get_padlist (pTHX_ CV *cv)
466	{	496	{
…		…
477	CV *cp = Perl_cv_clone (aTHX_ cv);	507	CV *cp = Perl_cv_clone (aTHX_ cv);
478	CvPADLIST (cv) = CvPADLIST (cp);	508	CvPADLIST (cv) = CvPADLIST (cp);
479	CvPADLIST (cp) = 0;	509	CvPADLIST (cp) = 0;
480	SvREFCNT_dec (cp);	510	SvREFCNT_dec (cp);
481	#else	511	#else
482	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	512	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
483	#endif	513	#endif
484	}	514	}
485	}	515	}
486		516
487	static void	517	static void
…		…
494	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	524	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
495		525
496	av = (AV *)mg->mg_obj;	526	av = (AV *)mg->mg_obj;
497		527
498	if (expect_false (AvFILLp (av) >= AvMAX (av)))	528	if (expect_false (AvFILLp (av) >= AvMAX (av)))
499	av_extend (av, AvMAX (av) + 1);	529	av_extend (av, AvFILLp (av) + 1);
500		530
501	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	531	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
502	}	532	}
503		533
504	/** load & save, init *******************************************************/	534	/** load & save, init *******************************************************/
		535
		536	static void
		537	on_enterleave_call (pTHX_ SV *cb);
505		538
506	static void	539	static void
507	load_perl (pTHX_ Coro__State c)	540	load_perl (pTHX_ Coro__State c)
508	{	541	{
509	perl_slots *slot = c->slot;	542	perl_slots *slot = c->slot;
510	c->slot = 0;	543	c->slot = 0;
511		544
512	PL_mainstack = c->mainstack;	545	PL_mainstack = c->mainstack;
513		546
514	GvSV (PL_defgv) = slot->defsv;	547	GvSV (PL_defgv) = slot->defsv;
515	GvAV (PL_defgv) = slot->defav;	548	GvAV (PL_defgv) = slot->defav;
516	GvSV (PL_errgv) = slot->errsv;	549	GvSV (PL_errgv) = slot->errsv;
517	GvSV (irsgv) = slot->irsgv;	550	GvSV (irsgv) = slot->irsgv;
		551	GvHV (PL_hintgv) = slot->hinthv;
518		552
519	#define VAR(name,type) PL_ ## name = slot->name;	553	#define VAR(name,type) PL_ ## name = slot->name;
520	# include "state.h"	554	# include "state.h"
521	#undef VAR	555	#undef VAR
522		556
…		…
536	PUTBACK;	570	PUTBACK;
537	}	571	}
538		572
539	slf_frame = c->slf_frame;	573	slf_frame = c->slf_frame;
540	CORO_THROW = c->except;	574	CORO_THROW = c->except;
		575
		576	if (expect_false (enable_times))
		577	{
		578	if (expect_false (!times_valid))
		579	coro_times_update ();
		580
		581	coro_times_sub (c);
		582	}
		583
		584	if (expect_false (c->on_enter))
		585	{
		586	int i;
		587
		588	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		589	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		590	}
541	}	591	}
542		592
543	static void	593	static void
544	save_perl (pTHX_ Coro__State c)	594	save_perl (pTHX_ Coro__State c)
545	{	595	{
		596	if (expect_false (c->on_leave))
		597	{
		598	int i;
		599
		600	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		601	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		602	}
		603
		604	times_valid = 0;
		605
		606	if (expect_false (enable_times))
		607	{
		608	coro_times_update (); times_valid = 1;
		609	coro_times_add (c);
		610	}
		611
546	c->except = CORO_THROW;	612	c->except = CORO_THROW;
547	c->slf_frame = slf_frame;	613	c->slf_frame = slf_frame;
548		614
549	{	615	{
550	dSP;	616	dSP;
…		…
563	{	629	{
564	while (expect_true (cxix >= 0))	630	while (expect_true (cxix >= 0))
565	{	631	{
566	PERL_CONTEXT *cx = &ccstk[cxix--];	632	PERL_CONTEXT *cx = &ccstk[cxix--];
567		633
568	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))	634	if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
569	{	635	{
570	CV *cv = cx->blk_sub.cv;	636	CV *cv = cx->blk_sub.cv;
571		637
572	if (expect_true (CvDEPTH (cv)))	638	if (expect_true (CvDEPTH (cv)))
573	{	639	{
…		…
597	/* we manually unroll here, as usually 2 slots is enough */	663	/* we manually unroll here, as usually 2 slots is enough */
598	if (SLOT_COUNT >= 1) CXINC;	664	if (SLOT_COUNT >= 1) CXINC;
599	if (SLOT_COUNT >= 2) CXINC;	665	if (SLOT_COUNT >= 2) CXINC;
600	if (SLOT_COUNT >= 3) CXINC;	666	if (SLOT_COUNT >= 3) CXINC;
601	{	667	{
602	int i;	668	unsigned int i;
603	for (i = 3; i < SLOT_COUNT; ++i)	669	for (i = 3; i < SLOT_COUNT; ++i)
604	CXINC;	670	CXINC;
605	}	671	}
606	cxstack_ix -= SLOT_COUNT; /* undo allocation */	672	cxstack_ix -= SLOT_COUNT; /* undo allocation */
607		673
608	c->mainstack = PL_mainstack;	674	c->mainstack = PL_mainstack;
609		675
610	{	676	{
611	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	677	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
612		678
613	slot->defav = GvAV (PL_defgv);	679	slot->defav = GvAV (PL_defgv);
614	slot->defsv = DEFSV;	680	slot->defsv = DEFSV;
615	slot->errsv = ERRSV;	681	slot->errsv = ERRSV;
616	slot->irsgv = GvSV (irsgv);	682	slot->irsgv = GvSV (irsgv);
		683	slot->hinthv = GvHV (PL_hintgv);
617		684
618	#define VAR(name,type) slot->name = PL_ ## name;	685	#define VAR(name,type) slot->name = PL_ ## name;
619	# include "state.h"	686	# include "state.h"
620	#undef VAR	687	#undef VAR
621	}	688	}
…		…
748	#endif	815	#endif
749		816
750	/*	817	/*
751	* This overrides the default magic get method of %SIG elements.	818	* This overrides the default magic get method of %SIG elements.
752	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	819	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
753	* and instead of tryign to save and restore the hash elements, we just provide	820	* and instead of trying to save and restore the hash elements, we just provide
754	* readback here.	821	* readback here.
755	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
756	* not expecting this to actually change the hook. This is a potential problem
757	* when a schedule happens then, but we ignore this.
758	*/	822	*/
759	static int	823	static int
760	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	824	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
761	{	825	{
762	const char *s = MgPV_nolen_const (mg);	826	const char *s = MgPV_nolen_const (mg);
…		…
815	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	879	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
816		880
817	if (svp)	881	if (svp)
818	{	882	{
819	SV *old = *svp;	883	SV *old = *svp;
820	*svp = newSVsv (sv);	884	*svp = SvOK (sv) ? newSVsv (sv) : 0;
821	SvREFCNT_dec (old);	885	SvREFCNT_dec (old);
822	return 0;	886	return 0;
823	}	887	}
824	}	888	}
825		889
…		…
857		921
858	PL_runops = RUNOPS_DEFAULT;	922	PL_runops = RUNOPS_DEFAULT;
859	PL_curcop = &PL_compiling;	923	PL_curcop = &PL_compiling;
860	PL_in_eval = EVAL_NULL;	924	PL_in_eval = EVAL_NULL;
861	PL_comppad = 0;	925	PL_comppad = 0;
		926	PL_comppad_name = 0;
		927	PL_comppad_name_fill = 0;
		928	PL_comppad_name_floor = 0;
862	PL_curpm = 0;	929	PL_curpm = 0;
863	PL_curpad = 0;	930	PL_curpad = 0;
864	PL_localizing = 0;	931	PL_localizing = 0;
865	PL_dirty = 0;	932	PL_dirty = 0;
866	PL_restartop = 0;	933	PL_restartop = 0;
867	#if PERL_VERSION_ATLEAST (5,10,0)	934	#if PERL_VERSION_ATLEAST (5,10,0)
868	PL_parser = 0;	935	PL_parser = 0;
869	#endif	936	#endif
		937	PL_hints = 0;
870		938
871	/* recreate the die/warn hooks */	939	/* recreate the die/warn hooks */
872	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	940	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
873	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	941	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
874		942
875	GvSV (PL_defgv) = newSV (0);	943	GvSV (PL_defgv) = newSV (0);
876	GvAV (PL_defgv) = coro->args; coro->args = 0;	944	GvAV (PL_defgv) = coro->args; coro->args = 0;
877	GvSV (PL_errgv) = newSV (0);	945	GvSV (PL_errgv) = newSV (0);
878	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	946	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		947	GvHV (PL_hintgv) = 0;
879	PL_rs = newSVsv (GvSV (irsgv));	948	PL_rs = newSVsv (GvSV (irsgv));
880	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	949	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
881		950
882	{	951	{
883	dSP;	952	dSP;
…		…
901	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	970	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
902	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	971	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
903		972
904	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	973	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
905	coro_setup_op.op_next = PL_op;	974	coro_setup_op.op_next = PL_op;
906	coro_setup_op.op_type = OP_CUSTOM;	975	coro_setup_op.op_type = OP_ENTERSUB;
907	coro_setup_op.op_ppaddr = pp_slf;	976	coro_setup_op.op_ppaddr = pp_slf;
908	/* no flags etc. required, as an init function won't be called */	977	/* no flags etc. required, as an init function won't be called */
909		978
910	PL_op = (OP *)&coro_setup_op;	979	PL_op = (OP *)&coro_setup_op;
911		980
912	/* copy throw, in case it was set before coro_setup */	981	/* copy throw, in case it was set before coro_setup */
913	CORO_THROW = coro->except;	982	CORO_THROW = coro->except;
914	}
915		983
		984	if (expect_false (enable_times))
		985	{
		986	coro_times_update ();
		987	coro_times_sub (coro);
		988	}
		989	}
		990
916	static void	991	static void
917	coro_destruct (pTHX_ struct coro *coro)	992	coro_unwind_stacks (pTHX)
918	{	993	{
919	if (!IN_DESTRUCT)	994	if (!IN_DESTRUCT)
920	{	995	{
921	/* restore all saved variables and stuff */	996	/* restore all saved variables and stuff */
922	LEAVE_SCOPE (0);	997	LEAVE_SCOPE (0);
…		…
930	POPSTACK_TO (PL_mainstack);	1005	POPSTACK_TO (PL_mainstack);
931		1006
932	/* unwind main stack */	1007	/* unwind main stack */
933	dounwind (-1);	1008	dounwind (-1);
934	}	1009	}
		1010	}
935		1011
936	SvREFCNT_dec (GvSV (PL_defgv));	1012	static void
937	SvREFCNT_dec (GvAV (PL_defgv));	1013	coro_destruct_perl (pTHX_ struct coro *coro)
938	SvREFCNT_dec (GvSV (PL_errgv));	1014	{
939	SvREFCNT_dec (PL_defoutgv);	1015	SV *svf [9];
940	SvREFCNT_dec (PL_rs);
941	SvREFCNT_dec (GvSV (irsgv));
942		1016
943	SvREFCNT_dec (PL_diehook);
944	SvREFCNT_dec (PL_warnhook);
945		1017	{
		1018	struct coro *current = SvSTATE_current;
		1019
		1020	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1021
		1022	save_perl (aTHX_ current);
		1023	load_perl (aTHX_ coro);
		1024
		1025	coro_unwind_stacks (aTHX);
		1026	coro_destruct_stacks (aTHX);
		1027
		1028	// now save some sv's to be free'd later
		1029	svf [0] = GvSV (PL_defgv);
		1030	svf [1] = (SV *)GvAV (PL_defgv);
		1031	svf [2] = GvSV (PL_errgv);
		1032	svf [3] = (SV *)PL_defoutgv;
		1033	svf [4] = PL_rs;
		1034	svf [5] = GvSV (irsgv);
		1035	svf [6] = (SV *)GvHV (PL_hintgv);
		1036	svf [7] = PL_diehook;
		1037	svf [8] = PL_warnhook;
		1038	assert (9 == sizeof (svf) / sizeof (*svf));
		1039
		1040	load_perl (aTHX_ current);
		1041	}
		1042
		1043	{
		1044	unsigned int i;
		1045
		1046	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1047	SvREFCNT_dec (svf [i]);
		1048
946	SvREFCNT_dec (coro->saved_deffh);	1049	SvREFCNT_dec (coro->saved_deffh);
947	SvREFCNT_dec (coro->rouse_cb);	1050	SvREFCNT_dec (coro->rouse_cb);
948	SvREFCNT_dec (coro->invoke_cb);	1051	SvREFCNT_dec (coro->invoke_cb);
949	SvREFCNT_dec (coro->invoke_av);	1052	SvREFCNT_dec (coro->invoke_av);
950		1053	}
951	coro_destruct_stacks (aTHX);
952	}	1054	}
953		1055
954	INLINE void	1056	INLINE void
955	free_coro_mortal (pTHX)	1057	free_coro_mortal (pTHX)
956	{	1058	{
…		…
964	static int	1066	static int
965	runops_trace (pTHX)	1067	runops_trace (pTHX)
966	{	1068	{
967	COP *oldcop = 0;	1069	COP *oldcop = 0;
968	int oldcxix = -2;	1070	int oldcxix = -2;
969	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
970	coro_cctx *cctx = coro->cctx;
971		1071
972	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	1072	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
973	{	1073	{
974	PERL_ASYNC_CHECK ();	1074	PERL_ASYNC_CHECK ();
975		1075
976	if (cctx->flags & CC_TRACE_ALL)	1076	if (cctx_current->flags & CC_TRACE_ALL)
977	{	1077	{
978	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	1078	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
979	{	1079	{
980	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1080	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
981	SV **bot, **top;	1081	SV **bot, **top;
982	AV *av = newAV (); /* return values */	1082	AV *av = newAV (); /* return values */
983	SV **cb;	1083	SV **cb;
…		…
1020		1120
1021	if (PL_curcop != &PL_compiling)	1121	if (PL_curcop != &PL_compiling)
1022	{	1122	{
1023	SV **cb;	1123	SV **cb;
1024		1124
1025	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1125	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1026	{	1126	{
1027	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1127	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1028		1128
1029	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1129	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1030	{	1130	{
…		…
1053	}	1153	}
1054		1154
1055	oldcxix = cxstack_ix;	1155	oldcxix = cxstack_ix;
1056	}	1156	}
1057		1157
1058	if (cctx->flags & CC_TRACE_LINE)	1158	if (cctx_current->flags & CC_TRACE_LINE)
1059	{	1159	{
1060	dSP;	1160	dSP;
1061		1161
1062	PL_runops = RUNOPS_DEFAULT;	1162	PL_runops = RUNOPS_DEFAULT;
1063	ENTER;	1163	ENTER;
…		…
1082		1182
1083	TAINT_NOT;	1183	TAINT_NOT;
1084	return 0;	1184	return 0;
1085	}	1185	}
1086		1186
1087	static struct coro_cctx *cctx_ssl_cctx;
1088	static struct CoroSLF cctx_ssl_frame;	1187	static struct CoroSLF cctx_ssl_frame;
1089		1188
1090	static void	1189	static void
1091	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1190	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1092	{	1191	{
1093	ta->prev = (struct coro *)cctx_ssl_cctx;
1094	ta->next = 0;	1192	ta->prev = 0;
1095	}	1193	}
1096		1194
1097	static int	1195	static int
1098	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1196	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1099	{	1197	{
…		…
1102	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1200	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1103	}	1201	}
1104		1202
1105	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1203	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1106	static void NOINLINE	1204	static void NOINLINE
1107	cctx_prepare (pTHX_ coro_cctx *cctx)	1205	cctx_prepare (pTHX)
1108	{	1206	{
1109	PL_top_env = &PL_start_env;	1207	PL_top_env = &PL_start_env;
1110		1208
1111	if (cctx->flags & CC_TRACE)	1209	if (cctx_current->flags & CC_TRACE)
1112	PL_runops = runops_trace;	1210	PL_runops = runops_trace;
1113		1211
1114	/* we already must be executing an SLF op, there is no other valid way	1212	/* we already must be executing an SLF op, there is no other valid way
1115	* that can lead to creation of a new cctx */	1213	* that can lead to creation of a new cctx */
1116	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1214	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1117	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1215	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1118		1216
1119	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1217	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1120	cctx_ssl_cctx = cctx;
1121	cctx_ssl_frame = slf_frame;	1218	cctx_ssl_frame = slf_frame;
1122		1219
1123	slf_frame.prepare = slf_prepare_set_stacklevel;	1220	slf_frame.prepare = slf_prepare_set_stacklevel;
1124	slf_frame.check = slf_check_set_stacklevel;	1221	slf_frame.check = slf_check_set_stacklevel;
1125	}	1222	}
…		…
1148	/* normally we would need to skip the entersub here */	1245	/* normally we would need to skip the entersub here */
1149	/* not doing so will re-execute it, which is exactly what we want */	1246	/* not doing so will re-execute it, which is exactly what we want */
1150	/* PL_nop = PL_nop->op_next */	1247	/* PL_nop = PL_nop->op_next */
1151		1248
1152	/* inject a fake subroutine call to cctx_init */	1249	/* inject a fake subroutine call to cctx_init */
1153	cctx_prepare (aTHX_ (coro_cctx *)arg);	1250	cctx_prepare (aTHX);
1154		1251
1155	/* cctx_run is the alternative tail of transfer() */	1252	/* cctx_run is the alternative tail of transfer() */
1156	transfer_tail (aTHX);	1253	transfer_tail (aTHX);
1157		1254
1158	/* somebody or something will hit me for both perl_run and PL_restartop */	1255	/* somebody or something will hit me for both perl_run and PL_restartop */
…		…
1166	/*	1263	/*
1167	* If perl-run returns we assume exit() was being called or the coro	1264	* If perl-run returns we assume exit() was being called or the coro
1168	* fell off the end, which seems to be the only valid (non-bug)	1265	* fell off the end, which seems to be the only valid (non-bug)
1169	* reason for perl_run to return. We try to exit by jumping to the	1266	* reason for perl_run to return. We try to exit by jumping to the
1170	* bootstrap-time "top" top_env, as we cannot restore the "main"	1267	* bootstrap-time "top" top_env, as we cannot restore the "main"
1171	* coroutine as Coro has no such concept	1268	* coroutine as Coro has no such concept.
		1269	* This actually isn't valid with the pthread backend, but OSes requiring
		1270	* that backend are too broken to do it in a standards-compliant way.
1172	*/	1271	*/
1173	PL_top_env = main_top_env;	1272	PL_top_env = main_top_env;
1174	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1273	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1175	}	1274	}
1176	}	1275	}
…		…
1253	cctx_destroy (coro_cctx *cctx)	1352	cctx_destroy (coro_cctx *cctx)
1254	{	1353	{
1255	if (!cctx)	1354	if (!cctx)
1256	return;	1355	return;
1257		1356
		1357	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
		1358
1258	--cctx_count;	1359	--cctx_count;
1259	coro_destroy (&cctx->cctx);	1360	coro_destroy (&cctx->cctx);
1260		1361
1261	/* coro_transfer creates new, empty cctx's */	1362	/* coro_transfer creates new, empty cctx's */
1262	if (cctx->sptr)	1363	if (cctx->sptr)
…		…
1325	/* TODO: throwing up here is considered harmful */	1426	/* TODO: throwing up here is considered harmful */
1326		1427
1327	if (expect_true (prev != next))	1428	if (expect_true (prev != next))
1328	{	1429	{
1329	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1430	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1330	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");	1431	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1331		1432
1332	if (expect_false (next->flags & CF_RUNNING))
1333	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1334
1335	if (expect_false (next->flags & CF_DESTROYED))	1433	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1336	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1434	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1337		1435
1338	#if !PERL_VERSION_ATLEAST (5,10,0)	1436	#if !PERL_VERSION_ATLEAST (5,10,0)
1339	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1437	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1340	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1438	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1341	#endif	1439	#endif
…		…
1347	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1445	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1348	{	1446	{
1349	dSTACKLEVEL;	1447	dSTACKLEVEL;
1350		1448
1351	/* sometimes transfer is only called to set idle_sp */	1449	/* sometimes transfer is only called to set idle_sp */
1352	if (expect_false (!next))	1450	if (expect_false (!prev))
1353	{	1451	{
1354	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1452	cctx_current->idle_sp = STACKLEVEL;
1355	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1453	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1356	}	1454	}
1357	else if (expect_true (prev != next))	1455	else if (expect_true (prev != next))
1358	{	1456	{
1359	coro_cctx *prev__cctx;	1457	coro_cctx *cctx_prev;
1360		1458
1361	if (expect_false (prev->flags & CF_NEW))	1459	if (expect_false (prev->flags & CF_NEW))
1362	{	1460	{
1363	/* create a new empty/source context */	1461	/* create a new empty/source context */
1364	prev->cctx = cctx_new_empty ();
1365	prev->flags &= ~CF_NEW;	1462	prev->flags &= ~CF_NEW;
1366	prev->flags |= CF_RUNNING;	1463	prev->flags |= CF_RUNNING;
1367	}	1464	}
1368		1465
1369	prev->flags &= ~CF_RUNNING;	1466	prev->flags &= ~CF_RUNNING;
…		…
1380	coro_setup (aTHX_ next);	1477	coro_setup (aTHX_ next);
1381	}	1478	}
1382	else	1479	else
1383	load_perl (aTHX_ next);	1480	load_perl (aTHX_ next);
1384		1481
1385	prev__cctx = prev->cctx;
1386
1387	/* possibly untie and reuse the cctx */	1482	/* possibly untie and reuse the cctx */
1388	if (expect_true (	1483	if (expect_true (
1389	prev__cctx->idle_sp == STACKLEVEL	1484	cctx_current->idle_sp == STACKLEVEL
1390	&& !(prev__cctx->flags & CC_TRACE)	1485	&& !(cctx_current->flags & CC_TRACE)
1391	&& !force_cctx	1486	&& !force_cctx
1392	))	1487	))
1393	{	1488	{
1394	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1489	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1395	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1490	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1396		1491
1397	prev->cctx = 0;
1398
1399	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1492	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1400	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1493	/* without this the next cctx_get might destroy the running cctx while still in use */
1401	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1494	if (expect_false (CCTX_EXPIRED (cctx_current)))
1402	if (!next->cctx)	1495	if (expect_true (!next->cctx))
1403	next->cctx = cctx_get (aTHX);	1496	next->cctx = cctx_get (aTHX);
1404		1497
1405	cctx_put (prev__cctx);	1498	cctx_put (cctx_current);
1406	}	1499	}
		1500	else
		1501	prev->cctx = cctx_current;
1407		1502
1408	++next->usecount;	1503	++next->usecount;
1409		1504
1410	if (expect_true (!next->cctx))	1505	cctx_prev = cctx_current;
1411	next->cctx = cctx_get (aTHX);	1506	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1412		1507
1413	if (expect_false (prev__cctx != next->cctx))	1508	next->cctx = 0;
		1509
		1510	if (expect_false (cctx_prev != cctx_current))
1414	{	1511	{
1415	prev__cctx->top_env = PL_top_env;	1512	cctx_prev->top_env = PL_top_env;
1416	PL_top_env = next->cctx->top_env;	1513	PL_top_env = cctx_current->top_env;
1417	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1514	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1418	}	1515	}
1419		1516
1420	transfer_tail (aTHX);	1517	transfer_tail (aTHX);
1421	}	1518	}
1422	}	1519	}
…		…
1430	coro_state_destroy (pTHX_ struct coro *coro)	1527	coro_state_destroy (pTHX_ struct coro *coro)
1431	{	1528	{
1432	if (coro->flags & CF_DESTROYED)	1529	if (coro->flags & CF_DESTROYED)
1433	return 0;	1530	return 0;
1434		1531
1435	if (coro->on_destroy)	1532	if (coro->on_destroy && !PL_dirty)
1436	coro->on_destroy (aTHX_ coro);	1533	coro->on_destroy (aTHX_ coro);
1437		1534
1438	coro->flags |= CF_DESTROYED;	1535	coro->flags |= CF_DESTROYED;
1439		1536
1440	if (coro->flags & CF_READY)	1537	if (coro->flags & CF_READY)
…		…
1444	--coro_nready;	1541	--coro_nready;
1445	}	1542	}
1446	else	1543	else
1447	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1544	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1448		1545
1449	if (coro->mainstack && coro->mainstack != main_mainstack)	1546	if (coro->mainstack
1450	{	1547	&& coro->mainstack != main_mainstack
1451	struct coro temp;	1548	&& coro->slot
1452		1549	&& !PL_dirty)
1453	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1454
1455	save_perl (aTHX_ &temp);
1456	load_perl (aTHX_ coro);
1457
1458	coro_destruct (aTHX_ coro);	1550	coro_destruct_perl (aTHX_ coro);
1459
1460	load_perl (aTHX_ &temp);
1461
1462	coro->slot = 0;
1463	}
1464		1551
1465	cctx_destroy (coro->cctx);	1552	cctx_destroy (coro->cctx);
1466	SvREFCNT_dec (coro->startcv);	1553	SvREFCNT_dec (coro->startcv);
1467	SvREFCNT_dec (coro->args);	1554	SvREFCNT_dec (coro->args);
1468	SvREFCNT_dec (CORO_THROW);	1555	SvREFCNT_dec (CORO_THROW);
…		…
1527		1614
1528	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1615	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1529	TRANSFER (ta, 1);	1616	TRANSFER (ta, 1);
1530	}	1617	}
1531		1618
1532	/*****************************************************************************/
1533	/* gensub: simple closure generation utility */
1534
1535	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1536
1537	/* create a closure from XS, returns a code reference */
1538	/* the arg can be accessed via GENSUB_ARG from the callback */
1539	/* the callback must use dXSARGS/XSRETURN */
1540	static SV *
1541	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1542	{
1543	CV *cv = (CV *)newSV (0);
1544
1545	sv_upgrade ((SV *)cv, SVt_PVCV);
1546
1547	CvANON_on (cv);
1548	CvISXSUB_on (cv);
1549	CvXSUB (cv) = xsub;
1550	GENSUB_ARG = arg;
1551
1552	return newRV_noinc ((SV *)cv);
1553	}
1554
1555	/** Coro ********************************************************************/	1619	/** Coro ********************************************************************/
1556		1620
1557	INLINE void	1621	INLINE void
1558	coro_enq (pTHX_ struct coro *coro)	1622	coro_enq (pTHX_ struct coro *coro)
1559	{	1623	{
1560	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1624	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1561	}
1562		1625
1563	INLINE SV *	1626	SvREFCNT_inc_NN (coro->hv);
		1627
		1628	coro->next_ready = 0;
		1629	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1630	ready [1] = coro;
		1631	}
		1632
		1633	INLINE struct coro *
1564	coro_deq (pTHX)	1634	coro_deq (pTHX)
1565	{	1635	{
1566	int prio;	1636	int prio;
1567		1637
1568	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1638	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1569	if (AvFILLp (coro_ready [prio]) >= 0)	1639	{
1570	return av_shift (coro_ready [prio]);	1640	struct coro **ready = coro_ready [prio];
		1641
		1642	if (ready [0])
		1643	{
		1644	struct coro *coro = ready [0];
		1645	ready [0] = coro->next_ready;
		1646	return coro;
		1647	}
		1648	}
1571		1649
1572	return 0;	1650	return 0;
1573	}	1651	}
1574		1652
1575	static int	1653	static int
…		…
1577	{	1655	{
1578	struct coro *coro;	1656	struct coro *coro;
1579	SV *sv_hook;	1657	SV *sv_hook;
1580	void (*xs_hook)(void);	1658	void (*xs_hook)(void);
1581		1659
1582	if (SvROK (coro_sv))
1583	coro_sv = SvRV (coro_sv);
1584
1585	coro = SvSTATE (coro_sv);	1660	coro = SvSTATE (coro_sv);
1586		1661
1587	if (coro->flags & CF_READY)	1662	if (coro->flags & CF_READY)
1588	return 0;	1663	return 0;
1589		1664
…		…
1642	static void	1717	static void
1643	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1718	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1644	{	1719	{
1645	for (;;)	1720	for (;;)
1646	{	1721	{
1647	SV *next_sv = coro_deq (aTHX);	1722	struct coro *next = coro_deq (aTHX);
1648		1723
1649	if (expect_true (next_sv))	1724	if (expect_true (next))
1650	{	1725	{
1651	struct coro *next = SvSTATE_hv (next_sv);
1652
1653	/* cannot transfer to destroyed coros, skip and look for next */	1726	/* cannot transfer to destroyed coros, skip and look for next */
1654	if (expect_false (next->flags & CF_DESTROYED))	1727	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1655	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1728	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1656	else	1729	else
1657	{	1730	{
1658	next->flags &= ~CF_READY;	1731	next->flags &= ~CF_READY;
1659	--coro_nready;	1732	--coro_nready;
1660		1733
…		…
1663	}	1736	}
1664	}	1737	}
1665	else	1738	else
1666	{	1739	{
1667	/* nothing to schedule: call the idle handler */	1740	/* nothing to schedule: call the idle handler */
		1741	if (SvROK (sv_idle)
		1742	&& SvOBJECT (SvRV (sv_idle)))
		1743	{
		1744	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1745	api_ready (aTHX_ SvRV (sv_idle));
		1746	--coro_nready;
		1747	}
		1748	else
		1749	{
1668	dSP;	1750	dSP;
1669		1751
1670	ENTER;	1752	ENTER;
1671	SAVETMPS;	1753	SAVETMPS;
1672		1754
1673	PUSHMARK (SP);	1755	PUSHMARK (SP);
1674	PUTBACK;	1756	PUTBACK;
1675	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);	1757	call_sv (sv_idle, G_VOID | G_DISCARD);
1676		1758
1677	FREETMPS;	1759	FREETMPS;
1678	LEAVE;	1760	LEAVE;
		1761	}
1679	}	1762	}
1680	}	1763	}
1681	}	1764	}
1682		1765
1683	INLINE void	1766	INLINE void
…		…
1754	static void	1837	static void
1755	api_trace (pTHX_ SV *coro_sv, int flags)	1838	api_trace (pTHX_ SV *coro_sv, int flags)
1756	{	1839	{
1757	struct coro *coro = SvSTATE (coro_sv);	1840	struct coro *coro = SvSTATE (coro_sv);
1758		1841
		1842	if (coro->flags & CF_RUNNING)
		1843	croak ("cannot enable tracing on a running coroutine, caught");
		1844
1759	if (flags & CC_TRACE)	1845	if (flags & CC_TRACE)
1760	{	1846	{
1761	if (!coro->cctx)	1847	if (!coro->cctx)
1762	coro->cctx = cctx_new_run ();	1848	coro->cctx = cctx_new_run ();
1763	else if (!(coro->cctx->flags & CC_TRACE))	1849	else if (!(coro->cctx->flags & CC_TRACE))
1764	croak ("cannot enable tracing on coroutine with custom stack,");	1850	croak ("cannot enable tracing on coroutine with custom stack, caught");
1765		1851
1766	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1852	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1767	}	1853	}
1768	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1854	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1769	{	1855	{
…		…
1825	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	1911	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1826	api_ready (aTHX_ sv_manager);	1912	api_ready (aTHX_ sv_manager);
1827		1913
1828	frame->prepare = prepare_schedule;	1914	frame->prepare = prepare_schedule;
1829	frame->check = slf_check_repeat;	1915	frame->check = slf_check_repeat;
		1916
		1917	/* as a minor optimisation, we could unwind all stacks here */
		1918	/* but that puts extra pressure on pp_slf, and is not worth much */
		1919	/*coro_unwind_stacks (aTHX);*/
1830	}	1920	}
1831		1921
1832	/*****************************************************************************/	1922	/*****************************************************************************/
1833	/* async pool handler */	1923	/* async pool handler */
1834		1924
…		…
1912		2002
1913	static void	2003	static void
1914	coro_rouse_callback (pTHX_ CV *cv)	2004	coro_rouse_callback (pTHX_ CV *cv)
1915	{	2005	{
1916	dXSARGS;	2006	dXSARGS;
1917	SV *data = (SV *)GENSUB_ARG;	2007	SV *data = (SV *)S_GENSUB_ARG;
1918		2008
1919	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2009	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1920	{	2010	{
1921	/* first call, set args */	2011	/* first call, set args */
		2012	SV *coro = SvRV (data);
1922	AV *av = newAV ();	2013	AV *av = newAV ();
1923	SV *coro = SvRV (data);
1924		2014
1925	SvRV_set (data, (SV *)av);	2015	SvRV_set (data, (SV *)av);
1926	api_ready (aTHX_ coro);
1927	SvREFCNT_dec (coro);
1928		2016
1929	/* better take a full copy of the arguments */	2017	/* better take a full copy of the arguments */
1930	while (items--)	2018	while (items--)
1931	av_store (av, items, newSVsv (ST (items)));	2019	av_store (av, items, newSVsv (ST (items)));
		2020
		2021	api_ready (aTHX_ coro);
		2022	SvREFCNT_dec (coro);
1932	}	2023	}
1933		2024
1934	XSRETURN_EMPTY;	2025	XSRETURN_EMPTY;
1935	}	2026	}
1936		2027
…		…
1953		2044
1954	EXTEND (SP, AvFILLp (av) + 1);	2045	EXTEND (SP, AvFILLp (av) + 1);
1955	for (i = 0; i <= AvFILLp (av); ++i)	2046	for (i = 0; i <= AvFILLp (av); ++i)
1956	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2047	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1957		2048
1958	/* we have stolen the elements, so ste length to zero and free */	2049	/* we have stolen the elements, so set length to zero and free */
1959	AvFILLp (av) = -1;	2050	AvFILLp (av) = -1;
1960	av_undef (av);	2051	av_undef (av);
1961		2052
1962	PUTBACK;	2053	PUTBACK;
1963	}	2054	}
…		…
1987	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2078	|| SvTYPE (SvRV (cb)) != SVt_PVCV
1988	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2079	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1989	croak ("Coro::rouse_wait called with illegal callback argument,");	2080	croak ("Coro::rouse_wait called with illegal callback argument,");
1990		2081
1991	{	2082	{
1992	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2083	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1993	SV *data = (SV *)GENSUB_ARG;	2084	SV *data = (SV *)S_GENSUB_ARG;
1994		2085
1995	frame->data = (void *)data;	2086	frame->data = (void *)data;
1996	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2087	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1997	frame->check = slf_check_rouse_wait;	2088	frame->check = slf_check_rouse_wait;
1998	}	2089	}
…		…
2002	coro_new_rouse_cb (pTHX)	2093	coro_new_rouse_cb (pTHX)
2003	{	2094	{
2004	HV *hv = (HV *)SvRV (coro_current);	2095	HV *hv = (HV *)SvRV (coro_current);
2005	struct coro *coro = SvSTATE_hv (hv);	2096	struct coro *coro = SvSTATE_hv (hv);
2006	SV *data = newRV_inc ((SV *)hv);	2097	SV *data = newRV_inc ((SV *)hv);
2007	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2098	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2008		2099
2009	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2100	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2010	SvREFCNT_dec (data); /* magicext increases the refcount */	2101	SvREFCNT_dec (data); /* magicext increases the refcount */
2011		2102
2012	SvREFCNT_dec (coro->rouse_cb);	2103	SvREFCNT_dec (coro->rouse_cb);
…		…
2250	}	2341	}
2251	else	2342	else
2252	slf_argc = 0;	2343	slf_argc = 0;
2253		2344
2254	PL_op->op_ppaddr = pp_slf;	2345	PL_op->op_ppaddr = pp_slf;
2255	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2346	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2256		2347
2257	PL_op = (OP *)&slf_restore;	2348	PL_op = (OP *)&slf_restore;
		2349	}
		2350
		2351	/*****************************************************************************/
		2352	/* dynamic wind */
		2353
		2354	static void
		2355	on_enterleave_call (pTHX_ SV *cb)
		2356	{
		2357	dSP;
		2358
		2359	PUSHSTACK;
		2360
		2361	PUSHMARK (SP);
		2362	PUTBACK;
		2363	call_sv (cb, G_VOID | G_DISCARD);
		2364	SPAGAIN;
		2365
		2366	POPSTACK;
		2367	}
		2368
		2369	static SV *
		2370	coro_avp_pop_and_free (pTHX_ AV **avp)
		2371	{
		2372	AV *av = *avp;
		2373	SV *res = av_pop (av);
		2374
		2375	if (AvFILLp (av) < 0)
		2376	{
		2377	*avp = 0;
		2378	SvREFCNT_dec (av);
		2379	}
		2380
		2381	return res;
		2382	}
		2383
		2384	static void
		2385	coro_pop_on_enter (pTHX_ void *coro)
		2386	{
		2387	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2388	SvREFCNT_dec (cb);
		2389	}
		2390
		2391	static void
		2392	coro_pop_on_leave (pTHX_ void *coro)
		2393	{
		2394	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2395	on_enterleave_call (aTHX_ sv_2mortal (cb));
2258	}	2396	}
2259		2397
2260	/*****************************************************************************/	2398	/*****************************************************************************/
2261	/* PerlIO::cede */	2399	/* PerlIO::cede */
2262		2400
…		…
2336	/* Coro::Semaphore & Coro::Signal */	2474	/* Coro::Semaphore & Coro::Signal */
2337		2475
2338	static SV *	2476	static SV *
2339	coro_waitarray_new (pTHX_ int count)	2477	coro_waitarray_new (pTHX_ int count)
2340	{	2478	{
2341	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2479	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2342	AV *av = newAV ();	2480	AV *av = newAV ();
2343	SV **ary;	2481	SV **ary;
2344		2482
2345	/* unfortunately, building manually saves memory */	2483	/* unfortunately, building manually saves memory */
2346	Newx (ary, 2, SV *);	2484	Newx (ary, 2, SV *);
2347	AvALLOC (av) = ary;	2485	AvALLOC (av) = ary;
		2486	#if PERL_VERSION_ATLEAST (5,10,0)
2348	/*AvARRAY (av) = ary;*/	2487	AvARRAY (av) = ary;
		2488	#else
2349	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2489	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2490	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2491	SvPVX ((SV *)av) = (char *)ary;
		2492	#endif
2350	AvMAX (av) = 1;	2493	AvMAX (av) = 1;
2351	AvFILLp (av) = 0;	2494	AvFILLp (av) = 0;
2352	ary [0] = newSViv (count);	2495	ary [0] = newSViv (count);
2353		2496
2354	return newRV_noinc ((SV *)av);	2497	return newRV_noinc ((SV *)av);
…		…
2483	{	2626	{
2484	if (items >= 2)	2627	if (items >= 2)
2485	{	2628	{
2486	/* callback form */	2629	/* callback form */
2487	AV *av = (AV *)SvRV (arg [0]);	2630	AV *av = (AV *)SvRV (arg [0]);
2488	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2631	SV *cb_cv = s_get_cv_croak (arg [1]);
2489		2632
2490	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2633	av_push (av, SvREFCNT_inc_NN (cb_cv));
2491		2634
2492	if (SvIVX (AvARRAY (av)[0]) > 0)	2635	if (SvIVX (AvARRAY (av)[0]) > 0)
2493	coro_semaphore_adjust (aTHX_ av, 0);	2636	coro_semaphore_adjust (aTHX_ av, 0);
2494		2637
2495	frame->prepare = prepare_nop;	2638	frame->prepare = prepare_nop;
…		…
2519	AvARRAY (av)[0] = AvARRAY (av)[1];	2662	AvARRAY (av)[0] = AvARRAY (av)[1];
2520	AvARRAY (av)[1] = cb;	2663	AvARRAY (av)[1] = cb;
2521		2664
2522	cb = av_shift (av);	2665	cb = av_shift (av);
2523		2666
		2667	if (SvTYPE (cb) == SVt_PVCV)
		2668	{
		2669	dSP;
		2670	PUSHMARK (SP);
		2671	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2672	PUTBACK;
		2673	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2674	}
		2675	else
		2676	{
2524	api_ready (aTHX_ cb);	2677	api_ready (aTHX_ cb);
2525	sv_setiv (cb, 0); /* signal waiter */	2678	sv_setiv (cb, 0); /* signal waiter */
		2679	}
		2680
2526	SvREFCNT_dec (cb);	2681	SvREFCNT_dec (cb);
2527		2682
2528	--count;	2683	--count;
2529	}	2684	}
2530	}	2685	}
…		…
2539	static void	2694	static void
2540	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2695	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2541	{	2696	{
2542	AV *av = (AV *)SvRV (arg [0]);	2697	AV *av = (AV *)SvRV (arg [0]);
2543		2698
		2699	if (items >= 2)
		2700	{
		2701	SV *cb_cv = s_get_cv_croak (arg [1]);
		2702	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2703
2544	if (SvIVX (AvARRAY (av)[0]))	2704	if (SvIVX (AvARRAY (av)[0]))
		2705	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
		2706
		2707	frame->prepare = prepare_nop;
		2708	frame->check = slf_check_nop;
		2709	}
		2710	else if (SvIVX (AvARRAY (av)[0]))
2545	{	2711	{
2546	SvIVX (AvARRAY (av)[0]) = 0;	2712	SvIVX (AvARRAY (av)[0]) = 0;
2547	frame->prepare = prepare_nop;	2713	frame->prepare = prepare_nop;
2548	frame->check = slf_check_nop;	2714	frame->check = slf_check_nop;
2549	}	2715	}
2550	else	2716	else
2551	{	2717	{
2552	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2718	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2553		2719
2554	av_push (av, waiter);	2720	av_push (av, waiter);
2555		2721
2556	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2722	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2557	frame->prepare = prepare_schedule;	2723	frame->prepare = prepare_schedule;
…		…
2575		2741
2576	static void	2742	static void
2577	coro_aio_callback (pTHX_ CV *cv)	2743	coro_aio_callback (pTHX_ CV *cv)
2578	{	2744	{
2579	dXSARGS;	2745	dXSARGS;
2580	AV *state = (AV *)GENSUB_ARG;	2746	AV *state = (AV *)S_GENSUB_ARG;
2581	SV *coro = av_pop (state);	2747	SV *coro = av_pop (state);
2582	SV *data_sv = newSV (sizeof (struct io_state));	2748	SV *data_sv = newSV (sizeof (struct io_state));
2583		2749
2584	av_extend (state, items - 1);	2750	av_extend (state, items - 1);
2585		2751
…		…
2699		2865
2700	for (i = 0; i < items; ++i)	2866	for (i = 0; i < items; ++i)
2701	PUSHs (arg [i]);	2867	PUSHs (arg [i]);
2702		2868
2703	/* now push the callback closure */	2869	/* now push the callback closure */
2704	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	2870	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2705		2871
2706	/* now call the AIO function - we assume our request is uncancelable */	2872	/* now call the AIO function - we assume our request is uncancelable */
2707	PUTBACK;	2873	PUTBACK;
2708	call_sv ((SV *)req, G_VOID | G_DISCARD);	2874	call_sv ((SV *)req, G_VOID | G_DISCARD);
2709	}	2875	}
…		…
2723		2889
2724	XSRETURN_EMPTY;	2890	XSRETURN_EMPTY;
2725	}	2891	}
2726		2892
2727	/*****************************************************************************/	2893	/*****************************************************************************/
		2894
		2895	#if CORO_CLONE
		2896	# include "clone.c"
		2897	#endif
2728		2898
2729	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2899	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2730		2900
2731	PROTOTYPES: DISABLE	2901	PROTOTYPES: DISABLE
2732		2902
…		…
2737	coro_thx = PERL_GET_CONTEXT;	2907	coro_thx = PERL_GET_CONTEXT;
2738	# endif	2908	# endif
2739	#endif	2909	#endif
2740	BOOT_PAGESIZE;	2910	BOOT_PAGESIZE;
2741		2911
		2912	cctx_current = cctx_new_empty ();
		2913
2742	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2914	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2743	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2915	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2744		2916
2745	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2917	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2746	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	2918	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2790		2962
2791	if (!svp) croak ("Time::HiRes is required");	2963	if (!svp) croak ("Time::HiRes is required");
2792	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	2964	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2793		2965
2794	nvtime = INT2PTR (double (*)(), SvIV (*svp));	2966	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		2967
		2968	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		2969	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2795	}	2970	}
2796		2971
2797	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2972	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2798	}	2973	}
2799		2974
2800	SV *	2975	SV *
2801	new (char *klass, ...)	2976	new (char *klass, ...)
2802	ALIAS:	2977	ALIAS:
…		…
2804	CODE:	2979	CODE:
2805	{	2980	{
2806	struct coro *coro;	2981	struct coro *coro;
2807	MAGIC *mg;	2982	MAGIC *mg;
2808	HV *hv;	2983	HV *hv;
2809	CV *cb;	2984	SV *cb;
2810	int i;	2985	int i;
2811		2986
2812	if (items > 1)	2987	if (items > 1)
2813	{	2988	{
2814	cb = coro_sv_2cv (aTHX_ ST (1));	2989	cb = s_get_cv_croak (ST (1));
2815		2990
2816	if (!ix)	2991	if (!ix)
2817	{	2992	{
2818	if (CvISXSUB (cb))	2993	if (CvISXSUB (cb))
2819	croak ("Coro::State doesn't support XS functions as coroutine start, caught");	2994	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
…		…
2841	av_extend (coro->args, items - 1 + ix - 1);	3016	av_extend (coro->args, items - 1 + ix - 1);
2842		3017
2843	if (ix)	3018	if (ix)
2844	{	3019	{
2845	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));	3020	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2846	cb = cv_coro_run;	3021	cb = (SV *)cv_coro_run;
2847	}	3022	}
2848		3023
2849	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);	3024	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2850		3025
2851	for (i = 2; i < items; i++)	3026	for (i = 2; i < items; i++)
…		…
2871	void	3046	void
2872	_exit (int code)	3047	_exit (int code)
2873	PROTOTYPE: $	3048	PROTOTYPE: $
2874	CODE:	3049	CODE:
2875	_exit (code);	3050	_exit (code);
		3051
		3052	SV *
		3053	clone (Coro::State coro)
		3054	CODE:
		3055	{
		3056	#if CORO_CLONE
		3057	struct coro *ncoro = coro_clone (aTHX_ coro);
		3058	MAGIC *mg;
		3059	/* TODO: too much duplication */
		3060	ncoro->hv = newHV ();
		3061	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		3062	mg->mg_flags |= MGf_DUP;
		3063	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		3064	#else
		3065	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		3066	#endif
		3067	}
		3068	OUTPUT:
		3069	RETVAL
2876		3070
2877	int	3071	int
2878	cctx_stacksize (int new_stacksize = 0)	3072	cctx_stacksize (int new_stacksize = 0)
2879	PROTOTYPE: ;$	3073	PROTOTYPE: ;$
2880	CODE:	3074	CODE:
…		…
2930	eval = 1	3124	eval = 1
2931	CODE:	3125	CODE:
2932	{	3126	{
2933	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3127	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2934	{	3128	{
2935	struct coro temp;	3129	struct coro *current = SvSTATE_current;
2936		3130
2937	if (!(coro->flags & CF_RUNNING))	3131	if (current != coro)
2938	{	3132	{
2939	PUTBACK;	3133	PUTBACK;
2940	save_perl (aTHX_ &temp);	3134	save_perl (aTHX_ current);
2941	load_perl (aTHX_ coro);	3135	load_perl (aTHX_ coro);
		3136	SPAGAIN;
2942	}	3137	}
2943		3138
2944	{
2945	dSP;
2946	ENTER;
2947	SAVETMPS;
2948	PUTBACK;
2949	PUSHSTACK;	3139	PUSHSTACK;
		3140
2950	PUSHMARK (SP);	3141	PUSHMARK (SP);
		3142	PUTBACK;
2951		3143
2952	if (ix)	3144	if (ix)
2953	eval_sv (coderef, 0);	3145	eval_sv (coderef, 0);
2954	else	3146	else
2955	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3147	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2956		3148
2957	POPSTACK;	3149	POPSTACK;
2958	SPAGAIN;	3150	SPAGAIN;
2959	FREETMPS;
2960	LEAVE;
2961	PUTBACK;
2962	}
2963		3151
2964	if (!(coro->flags & CF_RUNNING))	3152	if (current != coro)
2965	{	3153	{
		3154	PUTBACK;
2966	save_perl (aTHX_ coro);	3155	save_perl (aTHX_ coro);
2967	load_perl (aTHX_ &temp);	3156	load_perl (aTHX_ current);
2968	SPAGAIN;	3157	SPAGAIN;
2969	}	3158	}
2970	}	3159	}
2971	}	3160	}
2972		3161
…		…
2976	ALIAS:	3165	ALIAS:
2977	is_ready = CF_READY	3166	is_ready = CF_READY
2978	is_running = CF_RUNNING	3167	is_running = CF_RUNNING
2979	is_new = CF_NEW	3168	is_new = CF_NEW
2980	is_destroyed = CF_DESTROYED	3169	is_destroyed = CF_DESTROYED
		3170	is_suspended = CF_SUSPENDED
2981	CODE:	3171	CODE:
2982	RETVAL = boolSV (coro->flags & ix);	3172	RETVAL = boolSV (coro->flags & ix);
2983	OUTPUT:	3173	OUTPUT:
2984	RETVAL	3174	RETVAL
2985		3175
…		…
2989	CODE:	3179	CODE:
2990	{	3180	{
2991	struct coro *current = SvSTATE_current;	3181	struct coro *current = SvSTATE_current;
2992	SV **throwp = self == current ? &CORO_THROW : &self->except;	3182	SV **throwp = self == current ? &CORO_THROW : &self->except;
2993	SvREFCNT_dec (*throwp);	3183	SvREFCNT_dec (*throwp);
		3184	SvGETMAGIC (throw);
2994	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3185	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2995	}	3186	}
2996		3187
2997	void	3188	void
2998	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3189	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
…		…
3001		3192
3002	SV *	3193	SV *
3003	has_cctx (Coro::State coro)	3194	has_cctx (Coro::State coro)
3004	PROTOTYPE: $	3195	PROTOTYPE: $
3005	CODE:	3196	CODE:
3006	RETVAL = boolSV (!!coro->cctx);	3197	/* maybe manage the running flag differently */
		3198	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
3007	OUTPUT:	3199	OUTPUT:
3008	RETVAL	3200	RETVAL
3009		3201
3010	int	3202	int
3011	is_traced (Coro::State coro)	3203	is_traced (Coro::State coro)
…		…
3031		3223
3032	void	3224	void
3033	force_cctx ()	3225	force_cctx ()
3034	PROTOTYPE:	3226	PROTOTYPE:
3035	CODE:	3227	CODE:
3036	SvSTATE_current->cctx->idle_sp = 0;	3228	cctx_current->idle_sp = 0;
3037		3229
3038	void	3230	void
3039	swap_defsv (Coro::State self)	3231	swap_defsv (Coro::State self)
3040	PROTOTYPE: $	3232	PROTOTYPE: $
3041	ALIAS:	3233	ALIAS:
…		…
3049	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3241	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3050		3242
3051	SV *tmp = *src; *src = *dst; *dst = tmp;	3243	SV *tmp = *src; *src = *dst; *dst = tmp;
3052	}	3244	}
3053		3245
		3246	void
		3247	cancel (Coro::State self)
		3248	CODE:
		3249	coro_state_destroy (aTHX_ self);
		3250	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3251
		3252
		3253	SV *
		3254	enable_times (int enabled = enable_times)
		3255	CODE:
		3256	{
		3257	RETVAL = boolSV (enable_times);
		3258
		3259	if (enabled != enable_times)
		3260	{
		3261	enable_times = enabled;
		3262
		3263	coro_times_update ();
		3264	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3265	}
		3266	}
		3267	OUTPUT:
		3268	RETVAL
		3269
		3270	void
		3271	times (Coro::State self)
		3272	PPCODE:
		3273	{
		3274	struct coro *current = SvSTATE (coro_current);
		3275
		3276	if (expect_false (current == self))
		3277	{
		3278	coro_times_update ();
		3279	coro_times_add (SvSTATE (coro_current));
		3280	}
		3281
		3282	EXTEND (SP, 2);
		3283	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3284	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3285
		3286	if (expect_false (current == self))
		3287	coro_times_sub (SvSTATE (coro_current));
		3288	}
3054		3289
3055	MODULE = Coro::State PACKAGE = Coro	3290	MODULE = Coro::State PACKAGE = Coro
3056		3291
3057	BOOT:	3292	BOOT:
3058	{	3293	{
3059	int i;
3060
3061	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3294	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3062	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3295	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3063	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3296	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3064	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3297	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3065	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3298	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3066	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3299	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3067	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3300	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3068	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3301	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3302	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3069		3303
3070	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3304	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3071	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3305	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3072	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3306	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3073	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3307	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
3074		3308
3075	coro_stash = gv_stashpv ("Coro", TRUE);	3309	coro_stash = gv_stashpv ("Coro", TRUE);
3076		3310
3077	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3311	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3078	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3312	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3079	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3313	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3080	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3314	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3081	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3315	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3082	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3316	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3083
3084	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3085	coro_ready[i] = newAV ();
3086		3317
3087	{	3318	{
3088	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3319	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3089		3320
3090	coroapi.schedule = api_schedule;	3321	coroapi.schedule = api_schedule;
…		…
3131	cede_notself (...)	3362	cede_notself (...)
3132	CODE:	3363	CODE:
3133	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3364	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3134		3365
3135	void	3366	void
3136	_cancel (Coro::State self)
3137	CODE:
3138	coro_state_destroy (aTHX_ self);
3139	coro_call_on_destroy (aTHX_ self);
3140
3141	void
3142	_set_current (SV *current)	3367	_set_current (SV *current)
3143	PROTOTYPE: $	3368	PROTOTYPE: $
3144	CODE:	3369	CODE:
3145	SvREFCNT_dec (SvRV (coro_current));	3370	SvREFCNT_dec (SvRV (coro_current));
3146	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));	3371	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
…		…
3148	void	3373	void
3149	_set_readyhook (SV *hook)	3374	_set_readyhook (SV *hook)
3150	PROTOTYPE: $	3375	PROTOTYPE: $
3151	CODE:	3376	CODE:
3152	SvREFCNT_dec (coro_readyhook);	3377	SvREFCNT_dec (coro_readyhook);
		3378	SvGETMAGIC (hook);
3153	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3379	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
3154		3380
3155	int	3381	int
3156	prio (Coro::State coro, int newprio = 0)	3382	prio (Coro::State coro, int newprio = 0)
3157	PROTOTYPE: $;$	3383	PROTOTYPE: $;$
…		…
3164	if (items > 1)	3390	if (items > 1)
3165	{	3391	{
3166	if (ix)	3392	if (ix)
3167	newprio = coro->prio - newprio;	3393	newprio = coro->prio - newprio;
3168		3394
3169	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3395	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3170	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3396	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3171		3397
3172	coro->prio = newprio;	3398	coro->prio = newprio;
3173	}	3399	}
3174	}	3400	}
3175	OUTPUT:	3401	OUTPUT:
…		…
3188	PROTOTYPE:	3414	PROTOTYPE:
3189	CODE:	3415	CODE:
3190	RETVAL = coro_nready;	3416	RETVAL = coro_nready;
3191	OUTPUT:	3417	OUTPUT:
3192	RETVAL	3418	RETVAL
		3419
		3420	void
		3421	suspend (Coro::State self)
		3422	PROTOTYPE: $
		3423	CODE:
		3424	self->flags |= CF_SUSPENDED;
		3425
		3426	void
		3427	resume (Coro::State self)
		3428	PROTOTYPE: $
		3429	CODE:
		3430	self->flags &= ~CF_SUSPENDED;
3193		3431
3194	void	3432	void
3195	_pool_handler (...)	3433	_pool_handler (...)
3196	CODE:	3434	CODE:
3197	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3435	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
…		…
3252	rouse_wait (...)	3490	rouse_wait (...)
3253	PROTOTYPE: ;$	3491	PROTOTYPE: ;$
3254	PPCODE:	3492	PPCODE:
3255	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3493	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3256		3494
		3495	void
		3496	on_enter (SV *block)
		3497	ALIAS:
		3498	on_leave = 1
		3499	PROTOTYPE: &
		3500	CODE:
		3501	{
		3502	struct coro *coro = SvSTATE_current;
		3503	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3504
		3505	block = s_get_cv_croak (block);
		3506
		3507	if (!*avp)
		3508	*avp = newAV ();
		3509
		3510	av_push (*avp, SvREFCNT_inc (block));
		3511
		3512	if (!ix)
		3513	on_enterleave_call (aTHX_ block);
		3514
		3515	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3516	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3517	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3518	}
		3519
3257		3520
3258	MODULE = Coro::State PACKAGE = PerlIO::cede	3521	MODULE = Coro::State PACKAGE = PerlIO::cede
3259		3522
3260	BOOT:	3523	BOOT:
3261	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3524	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3264	MODULE = Coro::State PACKAGE = Coro::Semaphore	3527	MODULE = Coro::State PACKAGE = Coro::Semaphore
3265		3528
3266	SV *	3529	SV *
3267	new (SV *klass, SV *count = 0)	3530	new (SV *klass, SV *count = 0)
3268	CODE:	3531	CODE:
		3532	{
		3533	int semcnt = 1;
		3534
		3535	if (count)
		3536	{
		3537	SvGETMAGIC (count);
		3538
		3539	if (SvOK (count))
		3540	semcnt = SvIV (count);
		3541	}
		3542
3269	RETVAL = sv_bless (	3543	RETVAL = sv_bless (
3270	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3544	coro_waitarray_new (aTHX_ semcnt),
3271	GvSTASH (CvGV (cv))	3545	GvSTASH (CvGV (cv))
3272	);	3546	);
		3547	}
3273	OUTPUT:	3548	OUTPUT:
3274	RETVAL	3549	RETVAL
3275		3550
3276	# helper for Coro::Channel	3551	# helper for Coro::Channel and others
3277	SV *	3552	SV *
3278	_alloc (int count)	3553	_alloc (int count)
3279	CODE:	3554	CODE:
3280	RETVAL = coro_waitarray_new (aTHX_ count);	3555	RETVAL = coro_waitarray_new (aTHX_ count);
3281	OUTPUT:	3556	OUTPUT:
…		…
3339	for (i = 1; i <= wcount; ++i)	3614	for (i = 1; i <= wcount; ++i)
3340	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3615	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3341	}	3616	}
3342	}	3617	}
3343		3618
		3619	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3620
		3621	void
		3622	_may_delete (SV *sem, int count, int extra_refs)
		3623	PPCODE:
		3624	{
		3625	AV *av = (AV *)SvRV (sem);
		3626
		3627	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3628	&& AvFILLp (av) == 0 /* no waiters, just count */
		3629	&& SvIV (AvARRAY (av)[0]) == count)
		3630	XSRETURN_YES;
		3631
		3632	XSRETURN_NO;
		3633	}
		3634
3344	MODULE = Coro::State PACKAGE = Coro::Signal	3635	MODULE = Coro::State PACKAGE = Coro::Signal
3345		3636
3346	SV *	3637	SV *
3347	new (SV *klass)	3638	new (SV *klass)
3348	CODE:	3639	CODE:
…		…
3419		3710
3420	void	3711	void
3421	_register (char *target, char *proto, SV *req)	3712	_register (char *target, char *proto, SV *req)
3422	CODE:	3713	CODE:
3423	{	3714	{
3424	CV *req_cv = coro_sv_2cv (aTHX_ req);	3715	SV *req_cv = s_get_cv_croak (req);
3425	/* newXSproto doesn't return the CV on 5.8 */	3716	/* newXSproto doesn't return the CV on 5.8 */
3426	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3717	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3427	sv_setpv ((SV *)slf_cv, proto);	3718	sv_setpv ((SV *)slf_cv, proto);
3428	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3719	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3429	}	3720	}

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