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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.405 by root, Sat Jun 11 13:01:26 2011 UTC vs.
Revision 1.460 by root, Fri Jun 17 05:28:22 2016 UTC

1	/* this works around a bug in mingw32 providing a non-working setjmp */	1	/* this works around a bug in mingw32 providing a non-working setjmp */
2	#define USE_NO_MINGW_SETJMP_TWO_ARGS	2	#define USE_NO_MINGW_SETJMP_TWO_ARGS
3		3
4	#define NDEBUG 1	4	#define NDEBUG 1 /* perl usually disables NDEBUG later */
5		5
6	#include "libcoro/coro.c"	6	#include "libcoro/coro.c"
7		7
8	#define PERL_NO_GET_CONTEXT	8	#define PERL_NO_GET_CONTEXT
9	#define PERL_EXT	9	#define PERL_EXT
…		…
12	#include "perl.h"	12	#include "perl.h"
13	#include "XSUB.h"	13	#include "XSUB.h"
14	#include "perliol.h"	14	#include "perliol.h"
15		15
16	#include "schmorp.h"	16	#include "schmorp.h"
		17
		18	#define ECB_NO_THREADS 1
		19	#define ECB_NO_LIBM 1
17	#include "ecb.h"	20	#include "ecb.h"
18		21
19	#include <stddef.h>	22	#include <stddef.h>
20	#include <stdio.h>	23	#include <stdio.h>
21	#include <errno.h>	24	#include <errno.h>
22	#include <assert.h>	25	#include <assert.h>
23		26
		27	#ifndef SvREFCNT_dec_NN
		28	#define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv)
		29	#endif
		30
		31	#ifndef SvREFCNT_inc_NN
		32	#define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
		33	#endif
		34
24	#ifndef SVs_PADSTALE	35	#ifndef SVs_PADSTALE
25	# define SVs_PADSTALE 0	36	# define SVs_PADSTALE 0
		37	#endif
		38
		39	#ifdef PadARRAY
		40	# define NEWPADAPI 1
		41	# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
		42	#else
		43	typedef AV PADNAMELIST;
		44	# if !PERL_VERSION_ATLEAST(5,8,0)
		45	typedef AV PADLIST;
		46	typedef AV PAD;
		47	# endif
		48	# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
		49	# define PadlistMAX(pl) AvFILLp (pl)
		50	# define PadlistNAMES(pl) (*PadlistARRAY (pl))
		51	# define PadARRAY AvARRAY
		52	# define PadMAX AvFILLp
		53	# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
		54	#endif
		55	#ifndef PadnamelistREFCNT
		56	# define PadnamelistREFCNT(pnl) SvREFCNT (pnl)
		57	#endif
		58	#ifndef PadnamelistREFCNT_dec
		59	# define PadnamelistREFCNT_dec(pnl) SvREFCNT_dec (pnl)
		60	#endif
		61
		62	/* 5.19.something has replaced SVt_BIND by SVt_INVLIST */
		63	/* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */
		64	#if PERL_VERSION_ATLEAST(5,19,0)
		65	# define SVt_BIND SVt_IV
26	#endif	66	#endif
27		67
28	#if defined(_WIN32)	68	#if defined(_WIN32)
29	# undef HAS_GETTIMEOFDAY	69	# undef HAS_GETTIMEOFDAY
30	# undef setjmp	70	# undef setjmp
…		…
33	# define setjmp _setjmp /* deep magic */	73	# define setjmp _setjmp /* deep magic */
34	#else	74	#else
35	# include <inttypes.h> /* most portable stdint.h */	75	# include <inttypes.h> /* most portable stdint.h */
36	#endif	76	#endif
37		77
38	#ifdef HAVE_MMAP
39	# include <unistd.h>
40	# include <sys/mman.h>
41	# ifndef MAP_ANONYMOUS
42	# ifdef MAP_ANON
43	# define MAP_ANONYMOUS MAP_ANON
44	# else
45	# undef HAVE_MMAP
46	# endif
47	# endif
48	# include <limits.h>
49	# ifndef PAGESIZE
50	# define PAGESIZE pagesize
51	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
52	static long pagesize;
53	# else
54	# define BOOT_PAGESIZE (void)0
55	# endif
56	#else
57	# define PAGESIZE 0
58	# define BOOT_PAGESIZE (void)0
59	#endif
60
61	#if CORO_USE_VALGRIND
62	# include <valgrind/valgrind.h>
63	#endif
64
65	/* the maximum number of idle cctx that will be pooled */	78	/* the maximum number of idle cctx that will be pooled */
66	static int cctx_max_idle = 4;	79	static int cctx_max_idle = 4;
67		80
68	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	81	#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
69	# undef CORO_STACKGUARD	82	# define HAS_SCOPESTACK_NAME 1
70	#endif
71
72	#ifndef CORO_STACKGUARD
73	# define CORO_STACKGUARD 0
74	#endif	83	#endif
75		84
76	/* prefer perl internal functions over our own? */	85	/* prefer perl internal functions over our own? */
77	#ifndef CORO_PREFER_PERL_FUNCTIONS	86	#ifndef CORO_PREFER_PERL_FUNCTIONS
78	# define CORO_PREFER_PERL_FUNCTIONS 0	87	# define CORO_PREFER_PERL_FUNCTIONS 0
…		…
97	# if CORO_PTHREAD	106	# if CORO_PTHREAD
98	static void *coro_thx;	107	static void *coro_thx;
99	# endif	108	# endif
100	#endif	109	#endif
101		110
102	/* used in state.h */
103	#define VAR(name,type) VARx(name, PL_ ## name, type)
104
105	#ifdef __linux	111	#ifdef __linux
106	# include <time.h> /* for timespec */	112	# include <time.h> /* for timespec */
107	# include <syscall.h> /* for SYS_* */	113	# include <syscall.h> /* for SYS_* */
108	# ifdef SYS_clock_gettime	114	# ifdef SYS_clock_gettime
109	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	115	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
…		…
134		140
135	static GV *irsgv; /* $/ */	141	static GV *irsgv; /* $/ */
136	static GV *stdoutgv; /* *STDOUT */	142	static GV *stdoutgv; /* *STDOUT */
137	static SV *rv_diehook;	143	static SV *rv_diehook;
138	static SV *rv_warnhook;	144	static SV *rv_warnhook;
139	static HV *hv_sig; /* %SIG */
140		145
141	/* async_pool helper stuff */	146	/* async_pool helper stuff */
142	static SV *sv_pool_rss;	147	static SV *sv_pool_rss;
143	static SV *sv_pool_size;	148	static SV *sv_pool_size;
144	static SV *sv_async_pool_idle; /* description string */	149	static SV *sv_async_pool_idle; /* description string */
…		…
172	typedef struct coro_cctx	177	typedef struct coro_cctx
173	{	178	{
174	struct coro_cctx *next;	179	struct coro_cctx *next;
175		180
176	/* the stack */	181	/* the stack */
177	void *sptr;	182	struct coro_stack stack;
178	size_t ssize;
179		183
180	/* cpu state */	184	/* cpu state */
181	void *idle_sp; /* sp of top-level transfer/schedule/cede call */	185	void *idle_sp; /* sp of top-level transfer/schedule/cede call */
		186	#ifndef NDEBUG
182	JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */	187	JMPENV *idle_te; /* same as idle_sp, but for top_env */
		188	#endif
183	JMPENV *top_env;	189	JMPENV *top_env;
184	coro_context cctx;	190	coro_context cctx;
185		191
186	U32 gen;	192	U32 gen;
187	#if CORO_USE_VALGRIND	193	#if CORO_USE_VALGRIND
…		…
207	};	213	};
208		214
209	/* the structure where most of the perl state is stored, overlaid on the cxstack */	215	/* the structure where most of the perl state is stored, overlaid on the cxstack */
210	typedef struct	216	typedef struct
211	{	217	{
212	#define VARx(name,expr,type) type name;	218	#define VARx(name,expr,type) type name;
213	# include "state.h"	219	#include "state.h"
214	#undef VARx
215	} perl_slots;	220	} perl_slots;
216		221
217	// how many context stack entries do we need for perl_slots	222	/* how many context stack entries do we need for perl_slots */
218	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))	223	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
219		224
220	/* this is a structure representing a perl-level coroutine */	225	/* this is a structure representing a perl-level coroutine */
221	struct coro	226	struct coro
222	{	227	{
…		…
250	SV *saved_deffh;	255	SV *saved_deffh;
251	SV *invoke_cb;	256	SV *invoke_cb;
252	AV *invoke_av;	257	AV *invoke_av;
253		258
254	/* on_enter/on_leave */	259	/* on_enter/on_leave */
255	AV *on_enter;	260	AV *on_enter; AV *on_enter_xs;
256	AV *on_leave;	261	AV *on_leave; AV *on_leave_xs;
257		262
258	/* swap_sv */	263	/* swap_sv */
259	AV *swap_sv;	264	AV *swap_sv;
260		265
261	/* times */	266	/* times */
…		…
291	#define coro_nready coroapi.nready	296	#define coro_nready coroapi.nready
292		297
293	/** JIT *********************************************************************/	298	/** JIT *********************************************************************/
294		299
295	#if CORO_JIT	300	#if CORO_JIT
		301	/* APPLE doesn't have mmap though */
		302	#define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
296	#ifndef CORO_JIT_TYPE	303	#ifndef CORO_JIT_TYPE
297	#if __linux && __amd64	304	#if ECB_AMD64 && CORO_JIT_UNIXY
298	#define CORO_JIT_TYPE "amd64-unix"	305	#define CORO_JIT_TYPE "amd64-unix"
299	typedef void (*load_save_perl_slots_type)(perl_slots *);	306	#elif __i386 && CORO_JIT_UNIXY
300	#else	307	#define CORO_JIT_TYPE "x86-unix"
301	#undef CORO_JIT
302	#endif	308	#endif
303	#endif	309	#endif
304	#endif	310	#endif
305		311
		312	#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
		313	#undef CORO_JIT
		314	#endif
		315
306	#if CORO_JIT	316	#if CORO_JIT
307		317	typedef void (*load_save_perl_slots_type)(perl_slots *);
308	static load_save_perl_slots_type load_perl_slots, save_perl_slots;	318	static load_save_perl_slots_type load_perl_slots, save_perl_slots;
309
310	#endif	319	#endif
311		320
312	/** Coro::Select ************************************************************/	321	/** Coro::Select ************************************************************/
313		322
314	static OP *(*coro_old_pp_sselect) (pTHX);	323	static OP *(*coro_old_pp_sselect) (pTHX);
…		…
331		340
332	/** time stuff **************************************************************/	341	/** time stuff **************************************************************/
333		342
334	#ifdef HAS_GETTIMEOFDAY	343	#ifdef HAS_GETTIMEOFDAY
335		344
336	ECB_INLINE void	345	ecb_inline void
337	coro_u2time (pTHX_ UV ret[2])	346	coro_u2time (pTHX_ UV ret[2])
338	{	347	{
339	struct timeval tv;	348	struct timeval tv;
340	gettimeofday (&tv, 0);	349	gettimeofday (&tv, 0);
341		350
342	ret [0] = tv.tv_sec;	351	ret [0] = tv.tv_sec;
343	ret [1] = tv.tv_usec;	352	ret [1] = tv.tv_usec;
344	}	353	}
345		354
346	ECB_INLINE double	355	ecb_inline double
347	coro_nvtime ()	356	coro_nvtime (void)
348	{	357	{
349	struct timeval tv;	358	struct timeval tv;
350	gettimeofday (&tv, 0);	359	gettimeofday (&tv, 0);
351		360
352	return tv.tv_sec + tv.tv_usec * 1e-6;	361	return tv.tv_sec + tv.tv_usec * 1e-6;
353	}	362	}
354		363
355	ECB_INLINE void	364	ecb_inline void
356	time_init (pTHX)	365	time_init (pTHX)
357	{	366	{
358	nvtime = coro_nvtime;	367	nvtime = coro_nvtime;
359	u2time = coro_u2time;	368	u2time = coro_u2time;
360	}	369	}
361		370
362	#else	371	#else
363		372
364	ECB_INLINE void	373	ecb_inline void
365	time_init (pTHX)	374	time_init (pTHX)
366	{	375	{
367	SV **svp;	376	SV **svp;
368		377
369	require_pv ("Time/HiRes.pm");	378	require_pv ("Time/HiRes.pm");
370		379
371	svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);	380	svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
372		381
373	if (!svp) croak ("Time::HiRes is required, but missing. Caught");	382	if (!svp) croak ("Time::HiRes is required, but missing. Caught");
374	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");	383	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
375		384
…		…
411	get_hv (name, create);	420	get_hv (name, create);
412	#endif	421	#endif
413	return get_hv (name, create);	422	return get_hv (name, create);
414	}	423	}
415		424
416	ECB_INLINE void	425	ecb_inline void
417	coro_times_update ()	426	coro_times_update (void)
418	{	427	{
419	#ifdef coro_clock_gettime	428	#ifdef coro_clock_gettime
420	struct timespec ts;	429	struct timespec ts;
421		430
422	ts.tv_sec = ts.tv_nsec = 0;	431	ts.tv_sec = ts.tv_nsec = 0;
…		…
434	time_real [0] = tv [0];	443	time_real [0] = tv [0];
435	time_real [1] = tv [1] * 1000;	444	time_real [1] = tv [1] * 1000;
436	#endif	445	#endif
437	}	446	}
438		447
439	ECB_INLINE void	448	ecb_inline void
440	coro_times_add (struct coro *c)	449	coro_times_add (struct coro *c)
441	{	450	{
442	c->t_real [1] += time_real [1];	451	c->t_real [1] += time_real [1];
443	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }	452	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
444	c->t_real [0] += time_real [0];	453	c->t_real [0] += time_real [0];
…		…
446	c->t_cpu [1] += time_cpu [1];	455	c->t_cpu [1] += time_cpu [1];
447	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }	456	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
448	c->t_cpu [0] += time_cpu [0];	457	c->t_cpu [0] += time_cpu [0];
449	}	458	}
450		459
451	ECB_INLINE void	460	ecb_inline void
452	coro_times_sub (struct coro *c)	461	coro_times_sub (struct coro *c)
453	{	462	{
454	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }	463	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
455	c->t_real [1] -= time_real [1];	464	c->t_real [1] -= time_real [1];
456	c->t_real [0] -= time_real [0];	465	c->t_real [0] -= time_real [0];
…		…
477	: 0)	486	: 0)
478		487
479	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)	488	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
480	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)	489	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
481		490
482	ECB_INLINE MAGIC *	491	ecb_inline MAGIC *
483	SvSTATEhv_p (pTHX_ SV *coro)	492	SvSTATEhv_p (pTHX_ SV *coro)
484	{	493	{
485	MAGIC *mg;	494	MAGIC *mg;
486		495
487	if (ecb_expect_true (	496	if (ecb_expect_true (
…		…
492	return mg;	501	return mg;
493		502
494	return 0;	503	return 0;
495	}	504	}
496		505
497	ECB_INLINE struct coro *	506	ecb_inline struct coro *
498	SvSTATE_ (pTHX_ SV *coro)	507	SvSTATE_ (pTHX_ SV *coro_sv)
499	{	508	{
500	MAGIC *mg;	509	MAGIC *mg;
501		510
502	if (SvROK (coro))	511	if (SvROK (coro_sv))
503	coro = SvRV (coro);	512	coro_sv = SvRV (coro_sv);
504		513
505	mg = SvSTATEhv_p (aTHX_ coro);	514	mg = SvSTATEhv_p (aTHX_ coro_sv);
506	if (!mg)	515	if (!mg)
507	croak ("Coro::State object required");	516	croak ("Coro::State object required");
508		517
509	return (struct coro *)mg->mg_ptr;	518	return (struct coro *)mg->mg_ptr;
510	}	519	}
…		…
516	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))	525	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
517		526
518	/*****************************************************************************/	527	/*****************************************************************************/
519	/* padlist management and caching */	528	/* padlist management and caching */
520		529
521	ECB_INLINE AV *	530	ecb_inline PADLIST *
522	coro_derive_padlist (pTHX_ CV *cv)	531	coro_derive_padlist (pTHX_ CV *cv)
523	{	532	{
524	AV *padlist = CvPADLIST (cv);	533	PADLIST *padlist = CvPADLIST (cv);
525	AV *newpadlist, *newpad;	534	PADLIST *newpadlist;
		535	PADNAMELIST *padnames;
		536	PAD *newpad;
		537	PADOFFSET off = PadlistMAX (padlist) + 1;
526		538
527	newpadlist = newAV ();	539	#if NEWPADAPI
		540
		541	/* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
		542	/* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
		543	while (!PadlistARRAY (padlist)[off - 1])
		544	--off;
		545
		546	Perl_pad_push (aTHX_ padlist, off);
		547
		548	newpad = PadlistARRAY (padlist)[off];
		549	PadlistARRAY (padlist)[off] = 0;
		550
		551	#else
		552
		553	#if PERL_VERSION_ATLEAST (5,10,0)
		554	Perl_pad_push (aTHX_ padlist, off);
		555	#else
		556	Perl_pad_push (aTHX_ padlist, off, 1);
		557	#endif
		558
		559	newpad = PadlistARRAY (padlist)[off];
		560	PadlistMAX (padlist) = off - 1;
		561
		562	#endif
		563
		564	newPADLIST (newpadlist);
		565	#if !PERL_VERSION_ATLEAST(5,15,3)
		566	/* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
528	AvREAL_off (newpadlist);	567	AvREAL_off (newpadlist);
529	#if PERL_VERSION_ATLEAST (5,10,0)
530	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
531	#else
532	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
533	#endif	568	#endif
534	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
535	--AvFILLp (padlist);
536		569
537	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));	570	/* Already extended to 2 elements by newPADLIST. */
538	av_store (newpadlist, 1, (SV *)newpad);	571	PadlistMAX (newpadlist) = 1;
		572
		573	padnames = PadlistNAMES (padlist);
		574	++PadnamelistREFCNT (padnames);
		575	PadlistNAMES (newpadlist) = padnames;
		576
		577	PadlistARRAY (newpadlist)[1] = newpad;
539		578
540	return newpadlist;	579	return newpadlist;
541	}	580	}
542		581
543	ECB_INLINE void	582	ecb_inline void
544	free_padlist (pTHX_ AV *padlist)	583	free_padlist (pTHX_ PADLIST *padlist)
545	{	584	{
546	/* may be during global destruction */	585	/* may be during global destruction */
547	if (!IN_DESTRUCT)	586	if (!IN_DESTRUCT)
548	{	587	{
549	I32 i = AvFILLp (padlist);	588	I32 i = PadlistMAX (padlist);
550		589
551	while (i > 0) /* special-case index 0 */	590	while (i > 0) /* special-case index 0 */
552	{	591	{
553	/* we try to be extra-careful here */	592	/* we try to be extra-careful here */
554	AV *av = (AV *)AvARRAY (padlist)[i--];	593	PAD *pad = PadlistARRAY (padlist)[i--];
555	I32 j = AvFILLp (av);
556		594
		595	if (pad)
		596	{
		597	I32 j = PadMAX (pad);
		598
557	while (j >= 0)	599	while (j >= 0)
558	SvREFCNT_dec (AvARRAY (av)[j--]);	600	SvREFCNT_dec (PadARRAY (pad)[j--]);
559		601
560	AvFILLp (av) = -1;	602	PadMAX (pad) = -1;
561	SvREFCNT_dec (av);	603	SvREFCNT_dec (pad);
		604	}
562	}	605	}
563		606
564	SvREFCNT_dec (AvARRAY (padlist)[0]);	607	PadnamelistREFCNT_dec (PadlistNAMES (padlist));
565		608
		609	#if NEWPADAPI
		610	Safefree (PadlistARRAY (padlist));
		611	Safefree (padlist);
		612	#else
566	AvFILLp (padlist) = -1;	613	AvFILLp (padlist) = -1;
		614	AvREAL_off (padlist);
567	SvREFCNT_dec ((SV*)padlist);	615	SvREFCNT_dec ((SV*)padlist);
		616	#endif
568	}	617	}
569	}	618	}
570		619
571	static int	620	static int
572	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	621	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
573	{	622	{
574	AV *padlist;	623	PADLIST *padlist;
575	AV *av = (AV *)mg->mg_obj;	624	PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
		625	size_t len = *(size_t *)mg->mg_ptr;
576		626
577	/* perl manages to free our internal AV and _then_ call us */	627	/* perl manages to free our internal AV and _then_ call us */
578	if (IN_DESTRUCT)	628	if (IN_DESTRUCT)
579	return 0;	629	return 0;
580		630
581	/* casting is fun. */	631	while (len--)
582	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
583	free_padlist (aTHX_ padlist);	632	free_padlist (aTHX_ padlists[len]);
584
585	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
586		633
587	return 0;	634	return 0;
588	}	635	}
589		636
590	static MGVTBL coro_cv_vtbl = {	637	static MGVTBL coro_cv_vtbl = {
591	0, 0, 0, 0,	638	0, 0, 0, 0,
592	coro_cv_free	639	coro_cv_free
593	};	640	};
594		641
595	/* the next two functions merely cache the padlists */	642	/* the next two functions merely cache the padlists */
596	ECB_INLINE void	643	ecb_inline void
597	get_padlist (pTHX_ CV *cv)	644	get_padlist (pTHX_ CV *cv)
598	{	645	{
599	MAGIC *mg = CORO_MAGIC_cv (cv);	646	MAGIC *mg = CORO_MAGIC_cv (cv);
600	AV *av;	647	size_t *lenp;
601		648
602	if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	649	if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
603	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	650	CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
604	else	651	else
605	{	652	{
606	#if CORO_PREFER_PERL_FUNCTIONS	653	#if CORO_PREFER_PERL_FUNCTIONS
607	/* this is probably cleaner? but also slower! */	654	/* this is probably cleaner? but also slower! */
608	/* in practise, it seems to be less stable */	655	/* in practise, it seems to be less stable */
…		…
614	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);	661	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
615	#endif	662	#endif
616	}	663	}
617	}	664	}
618		665
619	ECB_INLINE void	666	ecb_inline void
620	put_padlist (pTHX_ CV *cv)	667	put_padlist (pTHX_ CV *cv)
621	{	668	{
622	MAGIC *mg = CORO_MAGIC_cv (cv);	669	MAGIC *mg = CORO_MAGIC_cv (cv);
623	AV *av;
624		670
625	if (ecb_expect_false (!mg))	671	if (ecb_expect_false (!mg))
		672	{
626	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	673	mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
		674	Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
		675	mg->mg_len = 1; /* so mg_free frees mg_ptr */
		676	}
		677	else
		678	Renew (mg->mg_ptr,
		679	sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
		680	char);
627		681
628	av = (AV *)mg->mg_obj;	682	((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
629
630	if (ecb_expect_false (AvFILLp (av) >= AvMAX (av)))
631	av_extend (av, AvFILLp (av) + 1);
632
633	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
634	}	683	}
635		684
636	/** load & save, init *******************************************************/	685	/** load & save, init *******************************************************/
637		686
		687	ecb_inline void
		688	swap_sv (SV *a, SV *b)
		689	{
		690	const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
		691	SV tmp;
		692
		693	/* swap sv_any */
		694	SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
		695
		696	/* swap sv_flags */
		697	SvFLAGS (&tmp) = SvFLAGS (a);
		698	SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
		699	SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
		700
		701	#if PERL_VERSION_ATLEAST (5,10,0)
		702	/* perl 5.10 and later complicates this _quite_ a bit, but it also
		703	* is much faster, so no quarrels here. alternatively, we could
		704	* sv_upgrade to avoid this.
		705	*/
		706	{
		707	/* swap sv_u */
		708	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
		709
		710	/* if SvANY points to the head, we need to adjust the pointers,
		711	* as the pointer for a still points to b, and maybe vice versa.
		712	*/
		713	U32 svany_in_head_set = (1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV);
		714	#if NVSIZE <= IVSIZE && PERL_VERSION_ATLEAST(5,22,0)
		715	svany_in_head_set |= 1 << SVt_NV;
		716	#endif
		717
		718	#define svany_in_head(type) (svany_in_head_set & (1 << (type)))
		719
		720	if (svany_in_head (SvTYPE (a)))
		721	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
		722
		723	if (svany_in_head (SvTYPE (b)))
		724	SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
		725	}
		726	#endif
		727	}
		728
638	/* swap sv heads, at least logically */	729	/* swap sv heads, at least logically */
639	static void	730	static void
640	swap_svs (pTHX_ Coro__State c)	731	swap_svs_enter (pTHX_ Coro__State c)
641	{	732	{
642	int i;	733	int i;
643		734
644	for (i = 0; i <= AvFILLp (c->swap_sv); )	735	for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
645	{	736	swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
646	SV *a = AvARRAY (c->swap_sv)[i++];
647	SV *b = AvARRAY (c->swap_sv)[i++];
648
649	const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
650	SV tmp;
651
652	/* swap sv_any */
653	SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
654
655	/* swap sv_flags */
656	SvFLAGS (&tmp) = SvFLAGS (a);
657	SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
658	SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
659
660	#if PERL_VERSION_ATLEAST (5,10,0)
661	/* perl 5.10 complicates this _quite_ a bit, but it also is
662	* much faster, so no quarrels here. alternatively, we could
663	* sv_upgrade to avoid this.
664	*/
665	{
666	/* swap sv_u */
667	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
668
669	/* if SvANY points to the head, we need to adjust the pointers,
670	* as the pointer for a still points to b, and maybe vice versa.
671	*/
672	#define svany_in_head(type) \
673	(((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
674
675	if (svany_in_head (SvTYPE (a)))
676	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
677
678	if (svany_in_head (SvTYPE (b)))
679	SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
680	}
681	#endif
682	}
683	}	737	}
684		738
		739	static void
		740	swap_svs_leave (pTHX_ Coro__State c)
		741	{
		742	int i;
		743
		744	for (i = AvFILLp (c->swap_sv) - 1; i >= 0; i -= 2)
		745	swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
		746	}
		747
685	#define SWAP_SVS(coro) \	748	#define SWAP_SVS_ENTER(coro) \
686	if (ecb_expect_false ((coro)->swap_sv)) \	749	if (ecb_expect_false ((coro)->swap_sv)) \
687	swap_svs (aTHX_ (coro))	750	swap_svs_enter (aTHX_ (coro))
		751
		752	#define SWAP_SVS_LEAVE(coro) \
		753	if (ecb_expect_false ((coro)->swap_sv)) \
		754	swap_svs_leave (aTHX_ (coro))
688		755
689	static void	756	static void
690	on_enterleave_call (pTHX_ SV *cb);	757	on_enterleave_call (pTHX_ SV *cb);
691		758
692	static void	759	static void
…		…
699		766
700	#if CORO_JIT	767	#if CORO_JIT
701	load_perl_slots (slot);	768	load_perl_slots (slot);
702	#else	769	#else
703	#define VARx(name,expr,type) expr = slot->name;	770	#define VARx(name,expr,type) expr = slot->name;
704	# include "state.h"	771	#include "state.h"
705	#undef VARx
706	#endif	772	#endif
707		773
708	{	774	{
709	dSP;	775	dSP;
710		776
…		…
713	/* now do the ugly restore mess */	779	/* now do the ugly restore mess */
714	while (ecb_expect_true (cv = (CV *)POPs))	780	while (ecb_expect_true (cv = (CV *)POPs))
715	{	781	{
716	put_padlist (aTHX_ cv); /* mark this padlist as available */	782	put_padlist (aTHX_ cv); /* mark this padlist as available */
717	CvDEPTH (cv) = PTR2IV (POPs);	783	CvDEPTH (cv) = PTR2IV (POPs);
718	CvPADLIST (cv) = (AV *)POPs;	784	CvPADLIST (cv) = (PADLIST *)POPs;
719	}	785	}
720		786
721	PUTBACK;	787	PUTBACK;
722	}	788	}
723		789
…		…
738		804
739	for (i = 0; i <= AvFILLp (c->on_enter); ++i)	805	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
740	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);	806	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
741	}	807	}
742		808
		809	if (ecb_expect_false (c->on_enter_xs))
		810	{
		811	int i;
		812
		813	for (i = 0; i <= AvFILLp (c->on_enter_xs); i += 2)
		814	((coro_enterleave_hook)AvARRAY (c->on_enter_xs)[i]) (aTHX_ AvARRAY (c->on_enter_xs)[i + 1]);
		815	}
		816
743	SWAP_SVS (c);	817	SWAP_SVS_ENTER (c);
744	}	818	}
745		819
746	static void	820	static void
747	save_perl (pTHX_ Coro__State c)	821	save_perl (pTHX_ Coro__State c)
748	{	822	{
749	SWAP_SVS (c);	823	SWAP_SVS_LEAVE (c);
		824
		825	if (ecb_expect_false (c->on_leave_xs))
		826	{
		827	int i;
		828
		829	for (i = AvFILLp (c->on_leave_xs) - 1; i >= 0; i -= 2)
		830	((coro_enterleave_hook)AvARRAY (c->on_leave_xs)[i]) (aTHX_ AvARRAY (c->on_leave_xs)[i + 1]);
		831	}
750		832
751	if (ecb_expect_false (c->on_leave))	833	if (ecb_expect_false (c->on_leave))
752	{	834	{
753	int i;	835	int i;
754		836
…		…
813		895
814	PUTBACK;	896	PUTBACK;
815	}	897	}
816		898
817	/* allocate some space on the context stack for our purposes */	899	/* allocate some space on the context stack for our purposes */
818	if (ecb_expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max))	900	if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
819	{	901	{
820	unsigned int i;	902	unsigned int i;
821		903
822	for (i = 0; i < SLOT_COUNT; ++i)	904	for (i = 0; i < SLOT_COUNT; ++i)
823	CXINC;	905	CXINC;
…		…
832		914
833	#if CORO_JIT	915	#if CORO_JIT
834	save_perl_slots (slot);	916	save_perl_slots (slot);
835	#else	917	#else
836	#define VARx(name,expr,type) slot->name = expr;	918	#define VARx(name,expr,type) slot->name = expr;
837	# include "state.h"	919	#include "state.h"
838	#undef VARx
839	#endif	920	#endif
840	}	921	}
841	}	922	}
842		923
843	/*	924	/*
…		…
875	#endif	956	#endif
876		957
877	New(54,PL_scopestack,8,I32);	958	New(54,PL_scopestack,8,I32);
878	PL_scopestack_ix = 0;	959	PL_scopestack_ix = 0;
879	PL_scopestack_max = 8;	960	PL_scopestack_max = 8;
		961	#if HAS_SCOPESTACK_NAME
		962	New(54,PL_scopestack_name,8,const char*);
		963	#endif
880		964
881	New(54,PL_savestack,24,ANY);	965	New(54,PL_savestack,24,ANY);
882	PL_savestack_ix = 0;	966	PL_savestack_ix = 0;
883	PL_savestack_max = 24;	967	PL_savestack_max = 24;
884		968
…		…
912	}	996	}
913		997
914	Safefree (PL_tmps_stack);	998	Safefree (PL_tmps_stack);
915	Safefree (PL_markstack);	999	Safefree (PL_markstack);
916	Safefree (PL_scopestack);	1000	Safefree (PL_scopestack);
		1001	#if HAS_SCOPESTACK_NAME
		1002	Safefree (PL_scopestack_name);
		1003	#endif
917	Safefree (PL_savestack);	1004	Safefree (PL_savestack);
918	#if !PERL_VERSION_ATLEAST (5,10,0)	1005	#if !PERL_VERSION_ATLEAST (5,10,0)
919	Safefree (PL_retstack);	1006	Safefree (PL_retstack);
920	#endif	1007	#endif
921	}	1008	}
…		…
981	{	1068	{
982	SV **svp = 0;	1069	SV **svp = 0;
983		1070
984	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;	1071	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
985	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	1072	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
986		1073
987	if (svp)	1074	if (svp)
988	{	1075	{
989	sv_setsv (sv, *svp ? *svp : &PL_sv_undef);	1076	SV *ssv;
		1077
		1078	if (!*svp)
		1079	ssv = &PL_sv_undef;
		1080	else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
		1081	ssv = sv_2mortal (newRV_inc (*svp));
		1082	else
		1083	ssv = *svp;
		1084
		1085	sv_setsv (sv, ssv);
990	return 0;	1086	return 0;
991	}	1087	}
992	}	1088	}
993		1089
994	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;	1090	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
…		…
1088	PL_hints = 0;	1184	PL_hints = 0;
1089		1185
1090	/* recreate the die/warn hooks */	1186	/* recreate the die/warn hooks */
1091	PL_diehook = SvREFCNT_inc (rv_diehook);	1187	PL_diehook = SvREFCNT_inc (rv_diehook);
1092	PL_warnhook = SvREFCNT_inc (rv_warnhook);	1188	PL_warnhook = SvREFCNT_inc (rv_warnhook);
1093		1189
1094	GvSV (PL_defgv) = newSV (0);	1190	GvSV (PL_defgv) = newSV (0);
1095	GvAV (PL_defgv) = coro->args; coro->args = 0;	1191	GvAV (PL_defgv) = coro->args; coro->args = 0;
1096	GvSV (PL_errgv) = newSV (0);	1192	GvSV (PL_errgv) = newSV (0);
1097	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	1193	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1098	GvHV (PL_hintgv) = 0;	1194	GvHV (PL_hintgv) = newHV ();
		1195	#if PERL_VERSION_ATLEAST (5,10,0)
		1196	hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints);
		1197	#endif
1099	PL_rs = newSVsv (GvSV (irsgv));	1198	PL_rs = newSVsv (GvSV (irsgv));
1100	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	1199	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
1101		1200
1102	{	1201	{
1103	dSP;	1202	dSP;
…		…
1131	PL_op = (OP *)&init_perl_op;	1230	PL_op = (OP *)&init_perl_op;
1132		1231
1133	/* copy throw, in case it was set before init_perl */	1232	/* copy throw, in case it was set before init_perl */
1134	CORO_THROW = coro->except;	1233	CORO_THROW = coro->except;
1135		1234
1136	SWAP_SVS (coro);	1235	SWAP_SVS_ENTER (coro);
1137		1236
1138	if (ecb_expect_false (enable_times))	1237	if (ecb_expect_false (enable_times))
1139	{	1238	{
1140	coro_times_update ();	1239	coro_times_update ();
1141	coro_times_sub (coro);	1240	coro_times_sub (coro);
…		…
1179	/* this will cause transfer_check to croak on block*/	1278	/* this will cause transfer_check to croak on block*/
1180	SvRV_set (coro_current, (SV *)coro->hv);	1279	SvRV_set (coro_current, (SV *)coro->hv);
1181		1280
1182	load_perl (aTHX_ coro);	1281	load_perl (aTHX_ coro);
1183		1282
		1283	/* restore swapped sv's */
		1284	SWAP_SVS_LEAVE (coro);
		1285
1184	coro_unwind_stacks (aTHX);	1286	coro_unwind_stacks (aTHX);
1185		1287
1186	/* restore swapped sv's */
1187	SWAP_SVS (coro);
1188
1189	coro_destruct_stacks (aTHX);	1288	coro_destruct_stacks (aTHX);
1190		1289
1191	// now save some sv's to be free'd later	1290	/* now save some sv's to be free'd later */
1192	svf [0] = GvSV (PL_defgv);	1291	svf [0] = GvSV (PL_defgv);
1193	svf [1] = (SV *)GvAV (PL_defgv);	1292	svf [1] = (SV *)GvAV (PL_defgv);
1194	svf [2] = GvSV (PL_errgv);	1293	svf [2] = GvSV (PL_errgv);
1195	svf [3] = (SV *)PL_defoutgv;	1294	svf [3] = (SV *)PL_defoutgv;
1196	svf [4] = PL_rs;	1295	svf [4] = PL_rs;
…		…
1213		1312
1214	SvREFCNT_dec (coro->saved_deffh);	1313	SvREFCNT_dec (coro->saved_deffh);
1215	SvREFCNT_dec (coro->rouse_cb);	1314	SvREFCNT_dec (coro->rouse_cb);
1216	SvREFCNT_dec (coro->invoke_cb);	1315	SvREFCNT_dec (coro->invoke_cb);
1217	SvREFCNT_dec (coro->invoke_av);	1316	SvREFCNT_dec (coro->invoke_av);
		1317	SvREFCNT_dec (coro->on_enter_xs);
		1318	SvREFCNT_dec (coro->on_leave_xs);
1218	}	1319	}
1219	}	1320	}
1220		1321
1221	ECB_INLINE void	1322	ecb_inline void
1222	free_coro_mortal (pTHX)	1323	free_coro_mortal (pTHX)
1223	{	1324	{
1224	if (ecb_expect_true (coro_mortal))	1325	if (ecb_expect_true (coro_mortal))
1225	{	1326	{
1226	SvREFCNT_dec ((SV *)coro_mortal);	1327	SvREFCNT_dec ((SV *)coro_mortal);
…		…
1285		1386
1286	if (PL_curcop != &PL_compiling)	1387	if (PL_curcop != &PL_compiling)
1287	{	1388	{
1288	SV **cb;	1389	SV **cb;
1289		1390
1290	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)	1391	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0)
1291	{	1392	{
1292	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1393	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1293		1394
1294	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1395	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1295	{	1396	{
…		…
1385	slf_frame.prepare = slf_prepare_set_stacklevel;	1486	slf_frame.prepare = slf_prepare_set_stacklevel;
1386	slf_frame.check = slf_check_set_stacklevel;	1487	slf_frame.check = slf_check_set_stacklevel;
1387	}	1488	}
1388		1489
1389	/* the tail of transfer: execute stuff we can only do after a transfer */	1490	/* the tail of transfer: execute stuff we can only do after a transfer */
1390	ECB_INLINE void	1491	ecb_inline void
1391	transfer_tail (pTHX)	1492	transfer_tail (pTHX)
1392	{	1493	{
1393	free_coro_mortal (aTHX);	1494	free_coro_mortal (aTHX);
		1495	}
		1496
		1497	/* try to exit the same way perl's main function would do */
		1498	/* we do not bother resetting the environment or other things *7
		1499	/* that are not, uhm, essential */
		1500	/* this obviously also doesn't work when perl is embedded */
		1501	static void ecb_noinline ecb_cold
		1502	perlish_exit (pTHX)
		1503	{
		1504	int exitstatus = perl_destruct (PL_curinterp);
		1505	perl_free (PL_curinterp);
		1506	exit (exitstatus);
1394	}	1507	}
1395		1508
1396	/*	1509	/*
1397	* this is a _very_ stripped down perl interpreter ;)	1510	* this is a _very_ stripped down perl interpreter ;)
1398	*/	1511	*/
…		…
1427	*/	1540	*/
1428		1541
1429	/*	1542	/*
1430	* If perl-run returns we assume exit() was being called or the coro	1543	* If perl-run returns we assume exit() was being called or the coro
1431	* fell off the end, which seems to be the only valid (non-bug)	1544	* fell off the end, which seems to be the only valid (non-bug)
1432	* reason for perl_run to return. We try to exit by jumping to the	1545	* reason for perl_run to return. We try to mimic whatever perl is normally
1433	* bootstrap-time "top" top_env, as we cannot restore the "main"	1546	* doing in that case. YMMV.
1434	* coroutine as Coro has no such concept.
1435	* This actually isn't valid with the pthread backend, but OSes requiring
1436	* that backend are too broken to do it in a standards-compliant way.
1437	*/	1547	*/
1438	PL_top_env = main_top_env;	1548	perlish_exit (aTHX);
1439	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1440	}	1549	}
1441	}	1550	}
1442		1551
1443	static coro_cctx *	1552	static coro_cctx *
1444	cctx_new ()	1553	cctx_new (void)
1445	{	1554	{
1446	coro_cctx *cctx;	1555	coro_cctx *cctx;
1447		1556
1448	++cctx_count;	1557	++cctx_count;
1449	New (0, cctx, 1, coro_cctx);	1558	New (0, cctx, 1, coro_cctx);
…		…
1455	return cctx;	1564	return cctx;
1456	}	1565	}
1457		1566
1458	/* create a new cctx only suitable as source */	1567	/* create a new cctx only suitable as source */
1459	static coro_cctx *	1568	static coro_cctx *
1460	cctx_new_empty ()	1569	cctx_new_empty (void)
1461	{	1570	{
1462	coro_cctx *cctx = cctx_new ();	1571	coro_cctx *cctx = cctx_new ();
1463		1572
1464	cctx->sptr = 0;	1573	cctx->stack.sptr = 0;
1465	coro_create (&cctx->cctx, 0, 0, 0, 0);	1574	coro_create (&cctx->cctx, 0, 0, 0, 0);
1466		1575
1467	return cctx;	1576	return cctx;
1468	}	1577	}
1469		1578
1470	/* create a new cctx suitable as destination/running a perl interpreter */	1579	/* create a new cctx suitable as destination/running a perl interpreter */
1471	static coro_cctx *	1580	static coro_cctx *
1472	cctx_new_run ()	1581	cctx_new_run (void)
1473	{	1582	{
1474	coro_cctx *cctx = cctx_new ();	1583	coro_cctx *cctx = cctx_new ();
1475	void *stack_start;
1476	size_t stack_size;
1477		1584
1478	#if HAVE_MMAP	1585	if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1479	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1480	/* mmap supposedly does allocate-on-write for us */
1481	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1482
1483	if (cctx->sptr != (void *)-1)
1484	{
1485	#if CORO_STACKGUARD
1486	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1487	#endif
1488	stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1489	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1490	cctx->flags |= CC_MAPPED;
1491	}	1586	{
1492	else
1493	#endif
1494	{
1495	cctx->ssize = cctx_stacksize * (long)sizeof (long);
1496	New (0, cctx->sptr, cctx_stacksize, long);
1497
1498	if (!cctx->sptr)
1499	{
1500	perror ("FATAL: unable to allocate stack for coroutine, exiting.");	1587	perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1501	_exit (EXIT_FAILURE);	1588	_exit (EXIT_FAILURE);
1502	}
1503
1504	stack_start = cctx->sptr;
1505	stack_size = cctx->ssize;
1506	}	1589	}
1507		1590
1508	#if CORO_USE_VALGRIND
1509	cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1510	#endif
1511
1512	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);	1591	coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1513		1592
1514	return cctx;	1593	return cctx;
1515	}	1594	}
1516		1595
1517	static void	1596	static void
…		…
1523	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));	1602	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1524		1603
1525	--cctx_count;	1604	--cctx_count;
1526	coro_destroy (&cctx->cctx);	1605	coro_destroy (&cctx->cctx);
1527		1606
1528	/* coro_transfer creates new, empty cctx's */	1607	coro_stack_free (&cctx->stack);
1529	if (cctx->sptr)
1530	{
1531	#if CORO_USE_VALGRIND
1532	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1533	#endif
1534
1535	#if HAVE_MMAP
1536	if (cctx->flags & CC_MAPPED)
1537	munmap (cctx->sptr, cctx->ssize);
1538	else
1539	#endif
1540	Safefree (cctx->sptr);
1541	}
1542		1608
1543	Safefree (cctx);	1609	Safefree (cctx);
1544	}	1610	}
1545		1611
1546	/* wether this cctx should be destructed */	1612	/* wether this cctx should be destructed */
…		…
1565	}	1631	}
1566		1632
1567	static void	1633	static void
1568	cctx_put (coro_cctx *cctx)	1634	cctx_put (coro_cctx *cctx)
1569	{	1635	{
1570	assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));	1636	assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1571		1637
1572	/* free another cctx if overlimit */	1638	/* free another cctx if overlimit */
1573	if (ecb_expect_false (cctx_idle >= cctx_max_idle))	1639	if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1574	{	1640	{
1575	coro_cctx *first = cctx_first;	1641	coro_cctx *first = cctx_first;
…		…
1701	return;	1767	return;
1702		1768
1703	slf_destroy (aTHX_ coro);	1769	slf_destroy (aTHX_ coro);
1704		1770
1705	coro->flags |= CF_ZOMBIE;	1771	coro->flags |= CF_ZOMBIE;
1706		1772
1707	if (coro->flags & CF_READY)	1773	if (coro->flags & CF_READY)
1708	{	1774	{
1709	/* reduce nready, as destroying a ready coro effectively unreadies it */	1775	/* reduce nready, as destroying a ready coro effectively unreadies it */
1710	/* alternative: look through all ready queues and remove the coro */	1776	/* alternative: look through all ready queues and remove the coro */
1711	--coro_nready;	1777	--coro_nready;
…		…
1788	TRANSFER (ta, 1);	1854	TRANSFER (ta, 1);
1789	}	1855	}
1790		1856
1791	/** Coro ********************************************************************/	1857	/** Coro ********************************************************************/
1792		1858
1793	ECB_INLINE void	1859	ecb_inline void
1794	coro_enq (pTHX_ struct coro *coro)	1860	coro_enq (pTHX_ struct coro *coro)
1795	{	1861	{
1796	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];	1862	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1797		1863
1798	SvREFCNT_inc_NN (coro->hv);	1864	SvREFCNT_inc_NN (coro->hv);
…		…
1800	coro->next_ready = 0;	1866	coro->next_ready = 0;
1801	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;	1867	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1802	ready [1] = coro;	1868	ready [1] = coro;
1803	}	1869	}
1804		1870
1805	ECB_INLINE struct coro *	1871	ecb_inline struct coro *
1806	coro_deq (pTHX)	1872	coro_deq (pTHX)
1807	{	1873	{
1808	int prio;	1874	int prio;
1809		1875
1810	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )	1876	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
…		…
1863	{	1929	{
1864	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1930	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1865	}	1931	}
1866		1932
1867	/* expects to own a reference to next->hv */	1933	/* expects to own a reference to next->hv */
1868	ECB_INLINE void	1934	ecb_inline void
1869	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)	1935	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1870	{	1936	{
1871	SV *prev_sv = SvRV (coro_current);	1937	SV *prev_sv = SvRV (coro_current);
1872		1938
1873	ta->prev = SvSTATE_hv (prev_sv);	1939	ta->prev = SvSTATE_hv (prev_sv);
…		…
1907	/* nothing to schedule: call the idle handler */	1973	/* nothing to schedule: call the idle handler */
1908	if (SvROK (sv_idle)	1974	if (SvROK (sv_idle)
1909	&& SvOBJECT (SvRV (sv_idle)))	1975	&& SvOBJECT (SvRV (sv_idle)))
1910	{	1976	{
1911	if (SvRV (sv_idle) == SvRV (coro_current))	1977	if (SvRV (sv_idle) == SvRV (coro_current))
		1978	{
		1979	require_pv ("Carp");
		1980
		1981	{
		1982	dSP;
		1983
		1984	ENTER;
		1985	SAVETMPS;
		1986
		1987	PUSHMARK (SP);
1912	croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");	1988	XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0)));
		1989	PUTBACK;
		1990	call_pv ("Carp::confess", G_VOID | G_DISCARD);
		1991
		1992	FREETMPS;
		1993	LEAVE;
		1994	}
		1995	}
1913		1996
1914	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */	1997	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1915	api_ready (aTHX_ SvRV (sv_idle));	1998	api_ready (aTHX_ SvRV (sv_idle));
1916	--coro_nready;	1999	--coro_nready;
1917	}	2000	}
…		…
1932	}	2015	}
1933	}	2016	}
1934	}	2017	}
1935	}	2018	}
1936		2019
1937	ECB_INLINE void	2020	ecb_inline void
1938	prepare_cede (pTHX_ struct coro_transfer_args *ta)	2021	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1939	{	2022	{
1940	api_ready (aTHX_ coro_current);	2023	api_ready (aTHX_ coro_current);
1941	prepare_schedule (aTHX_ ta);	2024	prepare_schedule (aTHX_ ta);
1942	}	2025	}
1943		2026
1944	ECB_INLINE void	2027	ecb_inline void
1945	prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)	2028	prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1946	{	2029	{
1947	SV *prev = SvRV (coro_current);	2030	SV *prev = SvRV (coro_current);
1948		2031
1949	if (coro_nready)	2032	if (coro_nready)
…		…
2114	{	2197	{
2115	AV *od = coro->on_destroy;	2198	AV *od = coro->on_destroy;
2116		2199
2117	if (!od)	2200	if (!od)
2118	return;	2201	return;
		2202
		2203	coro->on_destroy = 0;
		2204	sv_2mortal ((SV *)od);
2119		2205
2120	while (AvFILLp (od) >= 0)	2206	while (AvFILLp (od) >= 0)
2121	{	2207	{
2122	SV *cb = sv_2mortal (av_pop (od));	2208	SV *cb = sv_2mortal (av_pop (od));
2123		2209
…		…
2144		2230
2145	static void	2231	static void
2146	coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)	2232	coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2147	{	2233	{
2148	AV *av;	2234	AV *av;
2149		2235
2150	if (coro->status)	2236	if (coro->status)
2151	{	2237	{
2152	av = coro->status;	2238	av = coro->status;
2153	av_clear (av);	2239	av_clear (av);
2154	}	2240	}
…		…
2201		2287
2202	coro = SvSTATE (arg [0]);	2288	coro = SvSTATE (arg [0]);
2203	coro_hv = coro->hv;	2289	coro_hv = coro->hv;
2204		2290
2205	coro_set_status (aTHX_ coro, arg + 1, items - 1);	2291	coro_set_status (aTHX_ coro, arg + 1, items - 1);
2206		2292
2207	if (ecb_expect_false (coro->flags & CF_NOCANCEL))	2293	if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2208	{	2294	{
2209	/* coro currently busy cancelling something, so just notify it */	2295	/* coro currently busy cancelling something, so just notify it */
2210	coro->slf_frame.data = (void *)coro;	2296	coro->slf_frame.data = (void *)coro;
2211		2297
…		…
2218	slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);	2304	slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2219	}	2305	}
2220	else	2306	else
2221	{	2307	{
2222	struct coro *self = SvSTATE_current;	2308	struct coro *self = SvSTATE_current;
		2309
		2310	if (!self)
		2311	croak ("Coro::cancel called outside of thread content,");
2223		2312
2224	/* otherwise we cancel directly, purely for speed reasons	2313	/* otherwise we cancel directly, purely for speed reasons
2225	* unfortunately, this requires some magic trickery, as	2314	* unfortunately, this requires some magic trickery, as
2226	* somebody else could cancel us, so we have to fight the cancellation.	2315	* somebody else could cancel us, so we have to fight the cancellation.
2227	* this is ugly, and hopefully fully worth the extra speed.	2316	* this is ugly, and hopefully fully worth the extra speed.
…		…
2337	else	2426	else
2338	{	2427	{
2339	av_clear (GvAV (PL_defgv));	2428	av_clear (GvAV (PL_defgv));
2340	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);	2429	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
2341		2430
		2431	if (ecb_expect_false (coro->swap_sv))
		2432	{
		2433	swap_svs_leave (coro);
		2434	SvREFCNT_dec_NN (coro->swap_sv);
		2435	coro->swap_sv = 0;
		2436	}
		2437
2342	coro->prio = 0;	2438	coro->prio = 0;
2343		2439
2344	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2440	if (coro->cctx && ecb_expect_false (coro->cctx->flags & CC_TRACE))
2345	api_trace (aTHX_ coro_current, 0);	2441	api_trace (aTHX_ coro_current, 0);
2346		2442
2347	frame->prepare = prepare_schedule;	2443	frame->prepare = prepare_schedule;
2348	av_push (av_async_pool, SvREFCNT_inc (hv));	2444	av_push (av_async_pool, SvREFCNT_inc (hv));
2349	}	2445	}
…		…
2390		2486
2391	static int	2487	static int
2392	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)	2488	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2393	{	2489	{
2394	SV *data = (SV *)frame->data;	2490	SV *data = (SV *)frame->data;
2395		2491
2396	if (CORO_THROW)	2492	if (CORO_THROW)
2397	return 0;	2493	return 0;
2398		2494
2399	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2495	if (SvTYPE (SvRV (data)) != SVt_PVAV)
2400	return 1;	2496	return 1;
…		…
2436	cb = sv_2mortal (coro->rouse_cb);	2532	cb = sv_2mortal (coro->rouse_cb);
2437	coro->rouse_cb = 0;	2533	coro->rouse_cb = 0;
2438	}	2534	}
2439		2535
2440	if (!SvROK (cb)	2536	if (!SvROK (cb)
2441	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2537	|| SvTYPE (SvRV (cb)) != SVt_PVCV
2442	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2538	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2443	croak ("Coro::rouse_wait called with illegal callback argument,");	2539	croak ("Coro::rouse_wait called with illegal callback argument,");
2444		2540
2445	{	2541	{
2446	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */	2542	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
…		…
2569		2665
2570	/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */	2666	/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2571	static void	2667	static void
2572	slf_destroy (pTHX_ struct coro *coro)	2668	slf_destroy (pTHX_ struct coro *coro)
2573	{	2669	{
2574	/* this callback is reserved for slf functions needing to do cleanup */	2670	struct CoroSLF frame = coro->slf_frame;
2575	if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2576	coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2577		2671
2578	/*	2672	/*
2579	* The on_destroy above most likely is from an SLF call.	2673	* The on_destroy below most likely is from an SLF call.
2580	* Since by definition the SLF call will not finish when we destroy	2674	* Since by definition the SLF call will not finish when we destroy
2581	* the coro, we will have to force-finish it here, otherwise	2675	* the coro, we will have to force-finish it here, otherwise
2582	* cleanup functions cannot call SLF functions.	2676	* cleanup functions cannot call SLF functions.
2583	*/	2677	*/
2584	coro->slf_frame.prepare = 0;	2678	coro->slf_frame.prepare = 0;
		2679
		2680	/* this callback is reserved for slf functions needing to do cleanup */
		2681	if (frame.destroy && frame.prepare && !PL_dirty)
		2682	frame.destroy (aTHX_ &frame);
2585	}	2683	}
2586		2684
2587	/*	2685	/*
2588	* these not obviously related functions are all rolled into one	2686	* these not obviously related functions are all rolled into one
2589	* function to increase chances that they all will call transfer with the same	2687	* function to increase chances that they all will call transfer with the same
…		…
2772	static void	2870	static void
2773	coro_pop_on_leave (pTHX_ void *coro)	2871	coro_pop_on_leave (pTHX_ void *coro)
2774	{	2872	{
2775	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);	2873	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2776	on_enterleave_call (aTHX_ sv_2mortal (cb));	2874	on_enterleave_call (aTHX_ sv_2mortal (cb));
		2875	}
		2876
		2877	static void
		2878	enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg)
		2879	{
		2880	if (!hook)
		2881	return;
		2882
		2883	if (!*avp)
		2884	{
		2885	*avp = newAV ();
		2886	AvREAL_off (*avp);
		2887	}
		2888
		2889	av_push (*avp, (SV *)hook);
		2890	av_push (*avp, (SV *)arg);
		2891	}
		2892
		2893	static void
		2894	enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute)
		2895	{
		2896	AV *av = *avp;
		2897	int i;
		2898
		2899	if (!av)
		2900	return;
		2901
		2902	for (i = AvFILLp (av) - 1; i >= 0; i -= 2)
		2903	if (AvARRAY (av)[i] == (SV *)hook)
		2904	{
		2905	if (execute)
		2906	hook (aTHX_ (void *)AvARRAY (av)[i + 1]);
		2907
		2908	memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1);
		2909	av_pop (av);
		2910	av_pop (av);
		2911	break;
		2912	}
		2913
		2914	if (AvFILLp (av) >= 0)
		2915	{
		2916	*avp = 0;
		2917	SvREFCNT_dec_NN (av);
		2918	}
		2919	}
		2920
		2921	static void
		2922	api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
		2923	{
		2924	struct coro *coro = SvSTATE (coro_sv);
		2925
		2926	if (SvSTATE_current == coro)
		2927	if (enter)
		2928	enter (aTHX_ enter_arg);
		2929
		2930	enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg);
		2931	enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg);
		2932	}
		2933
		2934	static void
		2935	api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave)
		2936	{
		2937	struct coro *coro = SvSTATE (coro_sv);
		2938
		2939	enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
		2940	enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro);
		2941	}
		2942
		2943	static void
		2944	savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter)
		2945	{
		2946	struct coro *coro = SvSTATE_current;
		2947
		2948	enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
		2949	}
		2950
		2951	static void
		2952	savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave)
		2953	{
		2954	struct coro *coro = SvSTATE_current;
		2955
		2956	enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1);
		2957	}
		2958
		2959	static void
		2960	api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
		2961	{
		2962	api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg);
		2963
		2964	/* this ought to be much cheaper than malloc + a single destructor call */
		2965	if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter);
		2966	if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave);
2777	}	2967	}
2778		2968
2779	/*****************************************************************************/	2969	/*****************************************************************************/
2780	/* PerlIO::cede */	2970	/* PerlIO::cede */
2781		2971
…		…
2911	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));	3101	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2912	PUTBACK;	3102	PUTBACK;
2913	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);	3103	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2914	}	3104	}
2915		3105
2916	SvREFCNT_dec (cb);	3106	SvREFCNT_dec_NN (cb);
2917	}	3107	}
2918	}	3108	}
2919		3109
2920	static void	3110	static void
2921	coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)	3111	coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
…		…
2929	{	3119	{
2930	AV *av = (AV *)frame->data;	3120	AV *av = (AV *)frame->data;
2931	SV *count_sv = AvARRAY (av)[0];	3121	SV *count_sv = AvARRAY (av)[0];
2932	SV *coro_hv = SvRV (coro_current);	3122	SV *coro_hv = SvRV (coro_current);
2933		3123
		3124	frame->destroy = 0;
		3125
2934	/* if we are about to throw, don't actually acquire the lock, just throw */	3126	/* if we are about to throw, don't actually acquire the lock, just throw */
2935	if (CORO_THROW)	3127	if (ecb_expect_false (CORO_THROW))
		3128	{
		3129	/* we still might be responsible for the semaphore, so wake up others */
		3130	coro_semaphore_adjust (aTHX_ av, 0);
		3131
2936	return 0;	3132	return 0;
		3133	}
2937	else if (SvIVX (count_sv) > 0)	3134	else if (SvIVX (count_sv) > 0)
2938	{	3135	{
2939	frame->destroy = 0;
2940
2941	if (acquire)	3136	if (acquire)
2942	SvIVX (count_sv) = SvIVX (count_sv) - 1;	3137	SvIVX (count_sv) = SvIVX (count_sv) - 1;
2943	else	3138	else
2944	coro_semaphore_adjust (aTHX_ av, 0);	3139	coro_semaphore_adjust (aTHX_ av, 0);
2945		3140
…		…
2949	{	3144	{
2950	int i;	3145	int i;
2951	/* if we were woken up but can't down, we look through the whole */	3146	/* if we were woken up but can't down, we look through the whole */
2952	/* waiters list and only add us if we aren't in there already */	3147	/* waiters list and only add us if we aren't in there already */
2953	/* this avoids some degenerate memory usage cases */	3148	/* this avoids some degenerate memory usage cases */
2954	for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug	3149	for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2955	if (AvARRAY (av)[i] == coro_hv)	3150	if (AvARRAY (av)[i] == coro_hv)
2956	return 1;	3151	return 1;
2957		3152
2958	av_push (av, SvREFCNT_inc (coro_hv));	3153	av_push (av, SvREFCNT_inc (coro_hv));
2959	return 1;	3154	return 1;
…		…
3056	{	3251	{
3057	api_ready (aTHX_ cb);	3252	api_ready (aTHX_ cb);
3058	sv_setiv (cb, 0); /* signal waiter */	3253	sv_setiv (cb, 0); /* signal waiter */
3059	}	3254	}
3060		3255
3061	SvREFCNT_dec (cb);	3256	SvREFCNT_dec_NN (cb);
3062		3257
3063	--count;	3258	--count;
3064	}	3259	}
3065	}	3260	}
3066		3261
…		…
3151	}	3346	}
3152		3347
3153	av_push (state, data_sv);	3348	av_push (state, data_sv);
3154		3349
3155	api_ready (aTHX_ coro);	3350	api_ready (aTHX_ coro);
3156	SvREFCNT_dec (coro);	3351	SvREFCNT_dec_NN (coro);
3157	SvREFCNT_dec ((AV *)state);	3352	SvREFCNT_dec_NN ((AV *)state);
3158	}	3353	}
3159		3354
3160	static int	3355	static int
3161	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	3356	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
3162	{	3357	{
…		…
3167	/* it quickly returns */	3362	/* it quickly returns */
3168	if (CORO_THROW)	3363	if (CORO_THROW)
3169	return 0;	3364	return 0;
3170		3365
3171	/* one element that is an RV? repeat! */	3366	/* one element that is an RV? repeat! */
3172	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	3367	if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
3173	return 1;	3368	return 1;
3174		3369
3175	/* restore status */	3370	/* restore status */
3176	{	3371	{
3177	SV *data_sv = av_pop (state);	3372	SV *data_sv = av_pop (state);
…		…
3180	errno = data->errorno;	3375	errno = data->errorno;
3181	PL_laststype = data->laststype;	3376	PL_laststype = data->laststype;
3182	PL_laststatval = data->laststatval;	3377	PL_laststatval = data->laststatval;
3183	PL_statcache = data->statcache;	3378	PL_statcache = data->statcache;
3184		3379
3185	SvREFCNT_dec (data_sv);	3380	SvREFCNT_dec_NN (data_sv);
3186	}	3381	}
3187		3382
3188	/* push result values */	3383	/* push result values */
3189	{	3384	{
3190	dSP;	3385	dSP;
…		…
3339	#endif	3534	#endif
3340		3535
3341	#if CORO_JIT	3536	#if CORO_JIT
3342		3537
3343	static void ecb_noinline ecb_cold	3538	static void ecb_noinline ecb_cold
3344	pushav_3uv (pTHX_ UV a, UV b, UV c)	3539	pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3345	{	3540	{
3346	dSP;	3541	dSP;
3347	AV *av = newAV ();	3542	AV *av = newAV ();
3348		3543
		3544	av_store (av, 3, newSVuv (d));
3349	av_store (av, 2, newSVuv (c));	3545	av_store (av, 2, newSVuv (c));
3350	av_store (av, 1, newSVuv (b));	3546	av_store (av, 1, newSVuv (b));
3351	av_store (av, 0, newSVuv (a));	3547	av_store (av, 0, newSVuv (a));
3352		3548
3353	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	3549	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
…		…
3360	{	3556	{
3361	dSP;	3557	dSP;
3362	SV *load, *save;	3558	SV *load, *save;
3363	char *map_base;	3559	char *map_base;
3364	char *load_ptr, *save_ptr;	3560	char *load_ptr, *save_ptr;
3365	STRLEN load_len, save_len;	3561	STRLEN load_len, save_len, map_len;
3366	int count;	3562	int count;
3367		3563
		3564	eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
		3565
3368	PUSHMARK (SP);	3566	PUSHMARK (SP);
3369	PUTBACK;
3370	#define VARx(name,expr,type) pushav_3uv (aTHX_ (UV)&(expr), offsetof (perl_slots, name), sizeof (type));	3567	#define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3371	# include "state.h"	3568	#include "state.h"
3372	#undef VARx
3373	count = call_pv ("Coro::State::_jit", G_ARRAY);	3569	count = call_pv ("Coro::State::_jit", G_ARRAY);
3374	SPAGAIN;	3570	SPAGAIN;
3375		3571
3376	save = POPs; save_ptr = SvPVbyte (save, save_len);	3572	save = POPs; save_ptr = SvPVbyte (save, save_len);
3377	load = POPs; load_ptr = SvPVbyte (load, load_len);	3573	load = POPs; load_ptr = SvPVbyte (load, load_len);
3378		3574
		3575	map_len = load_len + save_len + 16;
		3576
3379	map_base = mmap (0, load_len + save_len + 16, PROT_EXEC | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);	3577	map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3380		3578
3381	assert (("Coro: unable mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));	3579	assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3382		3580
3383	load_perl_slots = (load_save_perl_slots_type)map_base;	3581	load_perl_slots = (load_save_perl_slots_type)map_base;
3384	memcpy (map_base, load_ptr, load_len);	3582	memcpy (map_base, load_ptr, load_len);
3385		3583
3386	map_base += (load_len + 15) & ~15;	3584	map_base += (load_len + 15) & ~15;
3387		3585
3388	save_perl_slots = (load_save_perl_slots_type)map_base;	3586	save_perl_slots = (load_save_perl_slots_type)map_base;
3389	memcpy (map_base, save_ptr, save_len);	3587	memcpy (map_base, save_ptr, save_len);
		3588
		3589	/* we are good citizens and try to make the page read-only, so the evil evil */
		3590	/* hackers might have it a bit more difficult */
		3591	mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
		3592
		3593	PUTBACK;
		3594	eval_pv ("undef &Coro::State::_jit", 1);
3390	}	3595	}
3391		3596
3392	#endif	3597	#endif
3393		3598
3394	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	3599	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
3395		3600
3396	PROTOTYPES: DISABLE	3601	PROTOTYPES: DISABLE
3397		3602
3398	BOOT:	3603	BOOT:
3399	{	3604	{
		3605	#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
		3606	#include "state.h"
3400	#ifdef USE_ITHREADS	3607	#ifdef USE_ITHREADS
3401	# if CORO_PTHREAD	3608	# if CORO_PTHREAD
3402	coro_thx = PERL_GET_CONTEXT;	3609	coro_thx = PERL_GET_CONTEXT;
3403	# endif	3610	# endif
3404	#endif	3611	#endif
3405	BOOT_PAGESIZE;
3406
3407	/* perl defines these to check for existance first, but why it doesn't */	3612	/* perl defines these to check for existance first, but why it doesn't */
3408	/* just create them one at init time is not clear to me, except for */	3613	/* just create them one at init time is not clear to me, except for */
3409	/* programs trying to delete them, but... */	3614	/* programs trying to delete them, but... */
3410	/* anyway, we declare this as invalid and make sure they are initialised here */	3615	/* anyway, we declare this as invalid and make sure they are initialised here */
3411	DEFSV;	3616	DEFSV;
…		…
3418		3623
3419	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	3624	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
3420	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	3625	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
3421	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;	3626	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
3422		3627
3423	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
3424	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));	3628	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
3425	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));	3629	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
3426		3630
3427	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	3631	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
3428		3632
…		…
3462	time_init (aTHX);	3666	time_init (aTHX);
3463		3667
3464	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));	3668	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3465	#if CORO_JIT	3669	#if CORO_JIT
3466	PUTBACK;	3670	PUTBACK;
3467	require_pv ("Coro/jit-" CORO_JIT_TYPE ".pl");
3468	jit_init (aTHX);	3671	jit_init (aTHX);
3469	perl_eval_pv ("undef &Coro::State::_jit", 1);
3470	SPAGAIN;	3672	SPAGAIN;
3471	#endif	3673	#endif
3472	}	3674	}
3473		3675
3474	SV *	3676	SV *
…		…
3483	void	3685	void
3484	transfer (...)	3686	transfer (...)
3485	PROTOTYPE: $$	3687	PROTOTYPE: $$
3486	CODE:	3688	CODE:
3487	CORO_EXECUTE_SLF_XS (slf_init_transfer);	3689	CORO_EXECUTE_SLF_XS (slf_init_transfer);
3488
3489	void
3490	_exit (int code)
3491	PROTOTYPE: $
3492	CODE:
3493	_exit (code);
3494		3690
3495	SV *	3691	SV *
3496	clone (Coro::State coro)	3692	clone (Coro::State coro)
3497	CODE:	3693	CODE:
3498	{	3694	{
…		…
3553	void	3749	void
3554	list ()	3750	list ()
3555	PROTOTYPE:	3751	PROTOTYPE:
3556	PPCODE:	3752	PPCODE:
3557	{	3753	{
3558	struct coro *coro;	3754	struct coro *coro;
3559	for (coro = coro_first; coro; coro = coro->next)	3755	for (coro = coro_first; coro; coro = coro->next)
3560	if (coro->hv)	3756	if (coro->hv)
3561	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));	3757	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
3562	}	3758	}
3563		3759
…		…
3627	RETVAL = boolSV (coro->flags & ix);	3823	RETVAL = boolSV (coro->flags & ix);
3628	OUTPUT:	3824	OUTPUT:
3629	RETVAL	3825	RETVAL
3630		3826
3631	void	3827	void
3632	throw (Coro::State self, SV *exception = &PL_sv_undef)	3828	throw (SV *self, SV *exception = &PL_sv_undef)
3633	PROTOTYPE: $;$	3829	PROTOTYPE: $;$
3634	CODE:	3830	CODE:
3635	{	3831	{
		3832	struct coro *coro = SvSTATE (self);
3636	struct coro *current = SvSTATE_current;	3833	struct coro *current = SvSTATE_current;
3637	SV **exceptionp = self == current ? &CORO_THROW : &self->except;	3834	SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3638	SvREFCNT_dec (*exceptionp);	3835	SvREFCNT_dec (*exceptionp);
3639	SvGETMAGIC (exception);	3836	SvGETMAGIC (exception);
3640	*exceptionp = SvOK (exception) ? newSVsv (exception) : 0;	3837	*exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
		3838
		3839	api_ready (aTHX_ self);
3641	}	3840	}
3642		3841
3643	void	3842	void
3644	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3843	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3645	PROTOTYPE: $;$	3844	PROTOTYPE: $;$
…		…
3722		3921
3723	void	3922	void
3724	times (Coro::State self)	3923	times (Coro::State self)
3725	PPCODE:	3924	PPCODE:
3726	{	3925	{
3727	struct coro *current = SvSTATE (coro_current);	3926	struct coro *current = SvSTATE (coro_current);
3728		3927
3729	if (ecb_expect_false (current == self))	3928	if (ecb_expect_false (current == self))
3730	{	3929	{
3731	coro_times_update ();	3930	coro_times_update ();
3732	coro_times_add (SvSTATE (coro_current));	3931	coro_times_add (SvSTATE (coro_current));
…		…
3739	if (ecb_expect_false (current == self))	3938	if (ecb_expect_false (current == self))
3740	coro_times_sub (SvSTATE (coro_current));	3939	coro_times_sub (SvSTATE (coro_current));
3741	}	3940	}
3742		3941
3743	void	3942	void
3744	swap_sv (Coro::State coro, SV *sv, SV *swapsv)	3943	swap_sv (Coro::State coro, SV *sva, SV *svb)
3745	CODE:	3944	CODE:
3746	{	3945	{
3747	struct coro *current = SvSTATE_current;	3946	struct coro *current = SvSTATE_current;
		3947	AV *swap_sv;
		3948	int i;
		3949
		3950	sva = SvRV (sva);
		3951	svb = SvRV (svb);
3748		3952
3749	if (current == coro)	3953	if (current == coro)
3750	SWAP_SVS (current);	3954	SWAP_SVS_LEAVE (current);
3751		3955
3752	if (!coro->swap_sv)	3956	if (!coro->swap_sv)
3753	coro->swap_sv = newAV ();	3957	coro->swap_sv = newAV ();
3754		3958
		3959	swap_sv = coro->swap_sv;
		3960
		3961	for (i = AvFILLp (swap_sv) - 1; i >= 0; i -= 2)
		3962	{
		3963	SV *a = AvARRAY (swap_sv)[i ];
		3964	SV *b = AvARRAY (swap_sv)[i + 1];
		3965
		3966	if (a == sva && b == svb)
		3967	{
		3968	SvREFCNT_dec_NN (a);
		3969	SvREFCNT_dec_NN (b);
		3970
		3971	for (; i <= AvFILLp (swap_sv) - 2; i++)
		3972	AvARRAY (swap_sv)[i] = AvARRAY (swap_sv)[i + 2];
		3973
		3974	AvFILLp (swap_sv) -= 2;
		3975
		3976	goto removed;
		3977	}
		3978	}
		3979
3755	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));	3980	av_push (swap_sv, SvREFCNT_inc_NN (sva));
3756	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));	3981	av_push (swap_sv, SvREFCNT_inc_NN (svb));
		3982
		3983	removed:
3757		3984
3758	if (current == coro)	3985	if (current == coro)
3759	SWAP_SVS (current);	3986	SWAP_SVS_ENTER (current);
3760	}	3987	}
3761		3988
3762		3989
3763	MODULE = Coro::State PACKAGE = Coro	3990	MODULE = Coro::State PACKAGE = Coro
3764		3991
3765	BOOT:	3992	BOOT:
3766	{	3993	{
		3994	if (SVt_LAST > 32)
		3995	croak ("Coro internal error: SVt_LAST > 32, swap_sv might need adjustment");
		3996
3767	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3997	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3768	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3998	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3769	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);	3999	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3770	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	4000	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3771	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	4001	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
…		…
3775		4005
3776	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	4006	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3777	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	4007	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3778	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	4008	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3779	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */	4009	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3780		4010
3781	coro_stash = gv_stashpv ("Coro", TRUE);	4011	coro_stash = gv_stashpv ("Coro", TRUE);
3782		4012
3783	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));	4013	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3784	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));	4014	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3785	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));	4015	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
…		…
3797	coroapi.ready = api_ready;	4027	coroapi.ready = api_ready;
3798	coroapi.is_ready = api_is_ready;	4028	coroapi.is_ready = api_is_ready;
3799	coroapi.nready = coro_nready;	4029	coroapi.nready = coro_nready;
3800	coroapi.current = coro_current;	4030	coroapi.current = coro_current;
3801		4031
		4032	coroapi.enterleave_hook = api_enterleave_hook;
		4033	coroapi.enterleave_unhook = api_enterleave_unhook;
		4034	coroapi.enterleave_scope_hook = api_enterleave_scope_hook;
		4035
3802	/*GCoroAPI = &coroapi;*/	4036	/*GCoroAPI = &coroapi;*/
3803	sv_setiv (sv, (IV)&coroapi);	4037	sv_setiv (sv, (IV)&coroapi);
3804	SvREADONLY_on (sv);	4038	SvREADONLY_on (sv);
3805	}	4039	}
3806	}	4040	}
…		…
3871		4105
3872	void	4106	void
3873	_set_current (SV *current)	4107	_set_current (SV *current)
3874	PROTOTYPE: $	4108	PROTOTYPE: $
3875	CODE:	4109	CODE:
3876	SvREFCNT_dec (SvRV (coro_current));	4110	SvREFCNT_dec_NN (SvRV (coro_current));
3877	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));	4111	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
3878		4112
3879	void	4113	void
3880	_set_readyhook (SV *hook)	4114	_set_readyhook (SV *hook)
3881	PROTOTYPE: $	4115	PROTOTYPE: $
…		…
3965		4199
3966	if ((SV *)hv == &PL_sv_undef)	4200	if ((SV *)hv == &PL_sv_undef)
3967	{	4201	{
3968	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);	4202	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3969	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));	4203	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3970	SvREFCNT_dec (sv);	4204	SvREFCNT_dec_NN (sv);
3971	}	4205	}
3972		4206
3973	{	4207	{
3974	struct coro *coro = SvSTATE_hv (hv);	4208	struct coro *coro = SvSTATE_hv (hv);
3975		4209
…		…
3982	api_ready (aTHX_ (SV *)hv);	4216	api_ready (aTHX_ (SV *)hv);
3983		4217
3984	if (GIMME_V != G_VOID)	4218	if (GIMME_V != G_VOID)
3985	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));	4219	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3986	else	4220	else
3987	SvREFCNT_dec (hv);	4221	SvREFCNT_dec_NN (hv);
3988	}	4222	}
3989		4223
3990	SV *	4224	SV *
3991	rouse_cb ()	4225	rouse_cb ()
3992	PROTOTYPE:	4226	PROTOTYPE:
…		…
4007	on_leave = 1	4241	on_leave = 1
4008	PROTOTYPE: &	4242	PROTOTYPE: &
4009	CODE:	4243	CODE:
4010	{	4244	{
4011	struct coro *coro = SvSTATE_current;	4245	struct coro *coro = SvSTATE_current;
4012	AV **avp = ix ? &coro->on_leave : &coro->on_enter;	4246	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4013		4247
4014	block = s_get_cv_croak (block);	4248	block = s_get_cv_croak (block);
4015		4249
4016	if (!*avp)	4250	if (!*avp)
4017	*avp = newAV ();	4251	*avp = newAV ();
…		…
4037		4271
4038	SV *	4272	SV *
4039	new (SV *klass, SV *count = 0)	4273	new (SV *klass, SV *count = 0)
4040	CODE:	4274	CODE:
4041	{	4275	{
4042	int semcnt = 1;	4276	int semcnt = 1;
4043		4277
4044	if (count)	4278	if (count)
4045	{	4279	{
4046	SvGETMAGIC (count);	4280	SvGETMAGIC (count);
4047		4281
…		…
4071	RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]);	4305	RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]);
4072	OUTPUT:	4306	OUTPUT:
4073	RETVAL	4307	RETVAL
4074		4308
4075	void	4309	void
4076	up (SV *self, int adjust = 1)	4310	up (SV *self)
4077	ALIAS:
4078	adjust = 1
4079	CODE:	4311	CODE:
		4312	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), 1);
		4313
		4314	void
		4315	adjust (SV *self, int adjust)
		4316	CODE:
4080	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	4317	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), adjust);
4081		4318
4082	void	4319	void
4083	down (...)	4320	down (...)
4084	CODE:	4321	CODE:
4085	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	4322	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
…		…
4107	XSRETURN_NO;	4344	XSRETURN_NO;
4108	}	4345	}
4109		4346
4110	void	4347	void
4111	waiters (SV *self)	4348	waiters (SV *self)
4112	PPCODE:	4349	PPCODE:
4113	{	4350	{
4114	AV *av = (AV *)SvRV (self);	4351	AV *av = (AV *)SvRV (self);
4115	int wcount = AvFILLp (av) + 1 - 1;	4352	int wcount = AvFILLp (av) + 1 - 1;
4116		4353
4117	if (GIMME_V == G_SCALAR)	4354	if (GIMME_V == G_SCALAR)
…		…
4126	}	4363	}
4127		4364
4128	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet	4365	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4129		4366
4130	void	4367	void
4131	_may_delete (SV *sem, int count, int extra_refs)	4368	_may_delete (SV *sem, int count, unsigned int extra_refs)
4132	PPCODE:	4369	PPCODE:
4133	{	4370	{
4134	AV *av = (AV *)SvRV (sem);	4371	AV *av = (AV *)SvRV (sem);
4135		4372
4136	if (SvREFCNT ((SV *)av) == 1 + extra_refs	4373	if (SvREFCNT ((SV *)av) == 1 + extra_refs
4137	&& AvFILLp (av) == 0 /* no waiters, just count */	4374	&& AvFILLp (av) == 0 /* no waiters, just count */
4138	&& SvIV (AvARRAY (av)[0]) == count)	4375	&& SvIV (AvARRAY (av)[0]) == count)
4139	XSRETURN_YES;	4376	XSRETURN_YES;
…		…
4160		4397
4161	void	4398	void
4162	broadcast (SV *self)	4399	broadcast (SV *self)
4163	CODE:	4400	CODE:
4164	{	4401	{
4165	AV *av = (AV *)SvRV (self);	4402	AV *av = (AV *)SvRV (self);
4166	coro_signal_wake (aTHX_ av, AvFILLp (av));	4403	coro_signal_wake (aTHX_ av, AvFILLp (av));
4167	}	4404	}
4168		4405
4169	void	4406	void
4170	send (SV *self)	4407	send (SV *self)
…		…
4178	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */	4415	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
4179	}	4416	}
4180		4417
4181	IV	4418	IV
4182	awaited (SV *self)	4419	awaited (SV *self)
4183	CODE:	4420	CODE:
4184	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;	4421	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
4185	OUTPUT:	4422	OUTPUT:
4186	RETVAL	4423	RETVAL
4187		4424
4188		4425
…		…
4193		4430
4194	void	4431	void
4195	_schedule (...)	4432	_schedule (...)
4196	CODE:	4433	CODE:
4197	{	4434	{
4198	static int incede;	4435	static int incede;
4199		4436
4200	api_cede_notself (aTHX);	4437	api_cede_notself (aTHX);
4201		4438
4202	++incede;	4439	++incede;
4203	while (coro_nready >= incede && api_cede (aTHX))	4440	while (coro_nready >= incede && api_cede (aTHX))
…		…
4247	{	4484	{
4248	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;	4485	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4249	coro_old_pp_sselect = 0;	4486	coro_old_pp_sselect = 0;
4250	}	4487	}
4251		4488
		4489	MODULE = Coro::State PACKAGE = Coro::Util
		4490
		4491	void
		4492	_exit (int code)
		4493	CODE:
		4494	_exit (code);
		4495
		4496	NV
		4497	time ()
		4498	CODE:
		4499	RETVAL = nvtime (aTHX);
		4500	OUTPUT:
		4501	RETVAL
		4502
		4503	NV
		4504	gettimeofday ()
		4505	PPCODE:
		4506	{
		4507	UV tv [2];
		4508	u2time (aTHX_ tv);
		4509	EXTEND (SP, 2);
		4510	PUSHs (sv_2mortal (newSVuv (tv [0])));
		4511	PUSHs (sv_2mortal (newSVuv (tv [1])));
		4512	}
		4513

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