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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 1.463 by root, Wed Jun 22 20:37:27 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;
		968	#if !PERL_VERSION_ATLEAST (5,24,0)
		969	/* perl 5.24 moves SS_MAXPUSH optimisation from */
		970	/* the header macros to PL_savestack_max */
		971	PL_savestack_max -= SS_MAXPUSH;
		972	#endif
884		973
885	#if !PERL_VERSION_ATLEAST (5,10,0)	974	#if !PERL_VERSION_ATLEAST (5,10,0)
886	New(54,PL_retstack,4,OP*);	975	New(54,PL_retstack,4,OP*);
887	PL_retstack_ix = 0;	976	PL_retstack_ix = 0;
888	PL_retstack_max = 4;	977	PL_retstack_max = 4;
…		…
912	}	1001	}
913		1002
914	Safefree (PL_tmps_stack);	1003	Safefree (PL_tmps_stack);
915	Safefree (PL_markstack);	1004	Safefree (PL_markstack);
916	Safefree (PL_scopestack);	1005	Safefree (PL_scopestack);
		1006	#if HAS_SCOPESTACK_NAME
		1007	Safefree (PL_scopestack_name);
		1008	#endif
917	Safefree (PL_savestack);	1009	Safefree (PL_savestack);
918	#if !PERL_VERSION_ATLEAST (5,10,0)	1010	#if !PERL_VERSION_ATLEAST (5,10,0)
919	Safefree (PL_retstack);	1011	Safefree (PL_retstack);
920	#endif	1012	#endif
921	}	1013	}
…		…
981	{	1073	{
982	SV **svp = 0;	1074	SV **svp = 0;
983		1075
984	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;	1076	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
985	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	1077	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
986		1078
987	if (svp)	1079	if (svp)
988	{	1080	{
989	sv_setsv (sv, *svp ? *svp : &PL_sv_undef);	1081	SV *ssv;
		1082
		1083	if (!*svp)
		1084	ssv = &PL_sv_undef;
		1085	else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
		1086	ssv = sv_2mortal (newRV_inc (*svp));
		1087	else
		1088	ssv = *svp;
		1089
		1090	sv_setsv (sv, ssv);
990	return 0;	1091	return 0;
991	}	1092	}
992	}	1093	}
993		1094
994	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;	1095	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
…		…
1088	PL_hints = 0;	1189	PL_hints = 0;
1089		1190
1090	/* recreate the die/warn hooks */	1191	/* recreate the die/warn hooks */
1091	PL_diehook = SvREFCNT_inc (rv_diehook);	1192	PL_diehook = SvREFCNT_inc (rv_diehook);
1092	PL_warnhook = SvREFCNT_inc (rv_warnhook);	1193	PL_warnhook = SvREFCNT_inc (rv_warnhook);
1093		1194
1094	GvSV (PL_defgv) = newSV (0);	1195	GvSV (PL_defgv) = newSV (0);
1095	GvAV (PL_defgv) = coro->args; coro->args = 0;	1196	GvAV (PL_defgv) = coro->args; coro->args = 0;
1096	GvSV (PL_errgv) = newSV (0);	1197	GvSV (PL_errgv) = newSV (0);
1097	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	1198	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1098	GvHV (PL_hintgv) = 0;	1199	GvHV (PL_hintgv) = newHV ();
		1200	#if PERL_VERSION_ATLEAST (5,10,0)
		1201	hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints);
		1202	#endif
1099	PL_rs = newSVsv (GvSV (irsgv));	1203	PL_rs = newSVsv (GvSV (irsgv));
1100	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	1204	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
1101		1205
1102	{	1206	{
1103	dSP;	1207	dSP;
…		…
1131	PL_op = (OP *)&init_perl_op;	1235	PL_op = (OP *)&init_perl_op;
1132		1236
1133	/* copy throw, in case it was set before init_perl */	1237	/* copy throw, in case it was set before init_perl */
1134	CORO_THROW = coro->except;	1238	CORO_THROW = coro->except;
1135		1239
1136	SWAP_SVS (coro);	1240	SWAP_SVS_ENTER (coro);
1137		1241
1138	if (ecb_expect_false (enable_times))	1242	if (ecb_expect_false (enable_times))
1139	{	1243	{
1140	coro_times_update ();	1244	coro_times_update ();
1141	coro_times_sub (coro);	1245	coro_times_sub (coro);
…		…
1179	/* this will cause transfer_check to croak on block*/	1283	/* this will cause transfer_check to croak on block*/
1180	SvRV_set (coro_current, (SV *)coro->hv);	1284	SvRV_set (coro_current, (SV *)coro->hv);
1181		1285
1182	load_perl (aTHX_ coro);	1286	load_perl (aTHX_ coro);
1183		1287
		1288	/* restore swapped sv's */
		1289	SWAP_SVS_LEAVE (coro);
		1290
1184	coro_unwind_stacks (aTHX);	1291	coro_unwind_stacks (aTHX);
1185		1292
1186	/* restore swapped sv's */
1187	SWAP_SVS (coro);
1188
1189	coro_destruct_stacks (aTHX);	1293	coro_destruct_stacks (aTHX);
1190		1294
1191	// now save some sv's to be free'd later	1295	/* now save some sv's to be free'd later */
1192	svf [0] = GvSV (PL_defgv);	1296	svf [0] = GvSV (PL_defgv);
1193	svf [1] = (SV *)GvAV (PL_defgv);	1297	svf [1] = (SV *)GvAV (PL_defgv);
1194	svf [2] = GvSV (PL_errgv);	1298	svf [2] = GvSV (PL_errgv);
1195	svf [3] = (SV *)PL_defoutgv;	1299	svf [3] = (SV *)PL_defoutgv;
1196	svf [4] = PL_rs;	1300	svf [4] = PL_rs;
…		…
1213		1317
1214	SvREFCNT_dec (coro->saved_deffh);	1318	SvREFCNT_dec (coro->saved_deffh);
1215	SvREFCNT_dec (coro->rouse_cb);	1319	SvREFCNT_dec (coro->rouse_cb);
1216	SvREFCNT_dec (coro->invoke_cb);	1320	SvREFCNT_dec (coro->invoke_cb);
1217	SvREFCNT_dec (coro->invoke_av);	1321	SvREFCNT_dec (coro->invoke_av);
		1322	SvREFCNT_dec (coro->on_enter_xs);
		1323	SvREFCNT_dec (coro->on_leave_xs);
1218	}	1324	}
1219	}	1325	}
1220		1326
1221	ECB_INLINE void	1327	ecb_inline void
1222	free_coro_mortal (pTHX)	1328	free_coro_mortal (pTHX)
1223	{	1329	{
1224	if (ecb_expect_true (coro_mortal))	1330	if (ecb_expect_true (coro_mortal))
1225	{	1331	{
1226	SvREFCNT_dec ((SV *)coro_mortal);	1332	SvREFCNT_dec ((SV *)coro_mortal);
…		…
1285		1391
1286	if (PL_curcop != &PL_compiling)	1392	if (PL_curcop != &PL_compiling)
1287	{	1393	{
1288	SV **cb;	1394	SV **cb;
1289		1395
1290	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)	1396	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0)
1291	{	1397	{
1292	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1398	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1293		1399
1294	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1400	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1295	{	1401	{
…		…
1385	slf_frame.prepare = slf_prepare_set_stacklevel;	1491	slf_frame.prepare = slf_prepare_set_stacklevel;
1386	slf_frame.check = slf_check_set_stacklevel;	1492	slf_frame.check = slf_check_set_stacklevel;
1387	}	1493	}
1388		1494
1389	/* the tail of transfer: execute stuff we can only do after a transfer */	1495	/* the tail of transfer: execute stuff we can only do after a transfer */
1390	ECB_INLINE void	1496	ecb_inline void
1391	transfer_tail (pTHX)	1497	transfer_tail (pTHX)
1392	{	1498	{
1393	free_coro_mortal (aTHX);	1499	free_coro_mortal (aTHX);
		1500	}
		1501
		1502	/* try to exit the same way perl's main function would do */
		1503	/* we do not bother resetting the environment or other things *7
		1504	/* that are not, uhm, essential */
		1505	/* this obviously also doesn't work when perl is embedded */
		1506	static void ecb_noinline ecb_cold
		1507	perlish_exit (pTHX)
		1508	{
		1509	int exitstatus = perl_destruct (PL_curinterp);
		1510	perl_free (PL_curinterp);
		1511	exit (exitstatus);
1394	}	1512	}
1395		1513
1396	/*	1514	/*
1397	* this is a _very_ stripped down perl interpreter ;)	1515	* this is a _very_ stripped down perl interpreter ;)
1398	*/	1516	*/
…		…
1425	* coro body here, as perl_run destroys these. Likewise, we cannot catch	1543	* coro body here, as perl_run destroys these. Likewise, we cannot catch
1426	* runtime errors here, as this is just a random interpreter, not a thread.	1544	* runtime errors here, as this is just a random interpreter, not a thread.
1427	*/	1545	*/
1428		1546
1429	/*	1547	/*
		1548	* pp_entersub in 5.24 no longer ENTERs, but perl_destruct
		1549	* requires PL_scopestack_ix, so do it here if required.
		1550	*/
		1551	if (!PL_scopestack_ix)
		1552	ENTER;
		1553
		1554	/*
1430	* If perl-run returns we assume exit() was being called or the coro	1555	* 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)	1556	* 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	1557	* 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"	1558	* 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	*/	1559	*/
1438	PL_top_env = main_top_env;	1560	perlish_exit (aTHX);
1439	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1440	}	1561	}
1441	}	1562	}
1442		1563
1443	static coro_cctx *	1564	static coro_cctx *
1444	cctx_new ()	1565	cctx_new (void)
1445	{	1566	{
1446	coro_cctx *cctx;	1567	coro_cctx *cctx;
1447		1568
1448	++cctx_count;	1569	++cctx_count;
1449	New (0, cctx, 1, coro_cctx);	1570	New (0, cctx, 1, coro_cctx);
…		…
1455	return cctx;	1576	return cctx;
1456	}	1577	}
1457		1578
1458	/* create a new cctx only suitable as source */	1579	/* create a new cctx only suitable as source */
1459	static coro_cctx *	1580	static coro_cctx *
1460	cctx_new_empty ()	1581	cctx_new_empty (void)
1461	{	1582	{
1462	coro_cctx *cctx = cctx_new ();	1583	coro_cctx *cctx = cctx_new ();
1463		1584
1464	cctx->sptr = 0;	1585	cctx->stack.sptr = 0;
1465	coro_create (&cctx->cctx, 0, 0, 0, 0);	1586	coro_create (&cctx->cctx, 0, 0, 0, 0);
1466		1587
1467	return cctx;	1588	return cctx;
1468	}	1589	}
1469		1590
1470	/* create a new cctx suitable as destination/running a perl interpreter */	1591	/* create a new cctx suitable as destination/running a perl interpreter */
1471	static coro_cctx *	1592	static coro_cctx *
1472	cctx_new_run ()	1593	cctx_new_run (void)
1473	{	1594	{
1474	coro_cctx *cctx = cctx_new ();	1595	coro_cctx *cctx = cctx_new ();
1475	void *stack_start;
1476	size_t stack_size;
1477		1596
1478	#if HAVE_MMAP	1597	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	}	1598	{
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.");	1599	perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1501	_exit (EXIT_FAILURE);	1600	_exit (EXIT_FAILURE);
1502	}
1503
1504	stack_start = cctx->sptr;
1505	stack_size = cctx->ssize;
1506	}	1601	}
1507		1602
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);	1603	coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1513		1604
1514	return cctx;	1605	return cctx;
1515	}	1606	}
1516		1607
1517	static void	1608	static void
…		…
1523	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));	1614	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1524		1615
1525	--cctx_count;	1616	--cctx_count;
1526	coro_destroy (&cctx->cctx);	1617	coro_destroy (&cctx->cctx);
1527		1618
1528	/* coro_transfer creates new, empty cctx's */	1619	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		1620
1543	Safefree (cctx);	1621	Safefree (cctx);
1544	}	1622	}
1545		1623
1546	/* wether this cctx should be destructed */	1624	/* wether this cctx should be destructed */
…		…
1565	}	1643	}
1566		1644
1567	static void	1645	static void
1568	cctx_put (coro_cctx *cctx)	1646	cctx_put (coro_cctx *cctx)
1569	{	1647	{
1570	assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));	1648	assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1571		1649
1572	/* free another cctx if overlimit */	1650	/* free another cctx if overlimit */
1573	if (ecb_expect_false (cctx_idle >= cctx_max_idle))	1651	if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1574	{	1652	{
1575	coro_cctx *first = cctx_first;	1653	coro_cctx *first = cctx_first;
…		…
1701	return;	1779	return;
1702		1780
1703	slf_destroy (aTHX_ coro);	1781	slf_destroy (aTHX_ coro);
1704		1782
1705	coro->flags |= CF_ZOMBIE;	1783	coro->flags |= CF_ZOMBIE;
1706		1784
1707	if (coro->flags & CF_READY)	1785	if (coro->flags & CF_READY)
1708	{	1786	{
1709	/* reduce nready, as destroying a ready coro effectively unreadies it */	1787	/* reduce nready, as destroying a ready coro effectively unreadies it */
1710	/* alternative: look through all ready queues and remove the coro */	1788	/* alternative: look through all ready queues and remove the coro */
1711	--coro_nready;	1789	--coro_nready;
…		…
1788	TRANSFER (ta, 1);	1866	TRANSFER (ta, 1);
1789	}	1867	}
1790		1868
1791	/** Coro ********************************************************************/	1869	/** Coro ********************************************************************/
1792		1870
1793	ECB_INLINE void	1871	ecb_inline void
1794	coro_enq (pTHX_ struct coro *coro)	1872	coro_enq (pTHX_ struct coro *coro)
1795	{	1873	{
1796	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];	1874	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1797		1875
1798	SvREFCNT_inc_NN (coro->hv);	1876	SvREFCNT_inc_NN (coro->hv);
…		…
1800	coro->next_ready = 0;	1878	coro->next_ready = 0;
1801	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;	1879	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1802	ready [1] = coro;	1880	ready [1] = coro;
1803	}	1881	}
1804		1882
1805	ECB_INLINE struct coro *	1883	ecb_inline struct coro *
1806	coro_deq (pTHX)	1884	coro_deq (pTHX)
1807	{	1885	{
1808	int prio;	1886	int prio;
1809		1887
1810	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )	1888	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
…		…
1863	{	1941	{
1864	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1942	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1865	}	1943	}
1866		1944
1867	/* expects to own a reference to next->hv */	1945	/* expects to own a reference to next->hv */
1868	ECB_INLINE void	1946	ecb_inline void
1869	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)	1947	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1870	{	1948	{
1871	SV *prev_sv = SvRV (coro_current);	1949	SV *prev_sv = SvRV (coro_current);
1872		1950
1873	ta->prev = SvSTATE_hv (prev_sv);	1951	ta->prev = SvSTATE_hv (prev_sv);
…		…
1907	/* nothing to schedule: call the idle handler */	1985	/* nothing to schedule: call the idle handler */
1908	if (SvROK (sv_idle)	1986	if (SvROK (sv_idle)
1909	&& SvOBJECT (SvRV (sv_idle)))	1987	&& SvOBJECT (SvRV (sv_idle)))
1910	{	1988	{
1911	if (SvRV (sv_idle) == SvRV (coro_current))	1989	if (SvRV (sv_idle) == SvRV (coro_current))
		1990	{
		1991	require_pv ("Carp");
		1992
		1993	{
		1994	dSP;
		1995
		1996	ENTER;
		1997	SAVETMPS;
		1998
		1999	PUSHMARK (SP);
1912	croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");	2000	XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0)));
		2001	PUTBACK;
		2002	call_pv ("Carp::confess", G_VOID | G_DISCARD);
		2003
		2004	FREETMPS;
		2005	LEAVE;
		2006	}
		2007	}
1913		2008
1914	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */	2009	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1915	api_ready (aTHX_ SvRV (sv_idle));	2010	api_ready (aTHX_ SvRV (sv_idle));
1916	--coro_nready;	2011	--coro_nready;
1917	}	2012	}
…		…
1932	}	2027	}
1933	}	2028	}
1934	}	2029	}
1935	}	2030	}
1936		2031
1937	ECB_INLINE void	2032	ecb_inline void
1938	prepare_cede (pTHX_ struct coro_transfer_args *ta)	2033	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1939	{	2034	{
1940	api_ready (aTHX_ coro_current);	2035	api_ready (aTHX_ coro_current);
1941	prepare_schedule (aTHX_ ta);	2036	prepare_schedule (aTHX_ ta);
1942	}	2037	}
1943		2038
1944	ECB_INLINE void	2039	ecb_inline void
1945	prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)	2040	prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1946	{	2041	{
1947	SV *prev = SvRV (coro_current);	2042	SV *prev = SvRV (coro_current);
1948		2043
1949	if (coro_nready)	2044	if (coro_nready)
…		…
2114	{	2209	{
2115	AV *od = coro->on_destroy;	2210	AV *od = coro->on_destroy;
2116		2211
2117	if (!od)	2212	if (!od)
2118	return;	2213	return;
		2214
		2215	coro->on_destroy = 0;
		2216	sv_2mortal ((SV *)od);
2119		2217
2120	while (AvFILLp (od) >= 0)	2218	while (AvFILLp (od) >= 0)
2121	{	2219	{
2122	SV *cb = sv_2mortal (av_pop (od));	2220	SV *cb = sv_2mortal (av_pop (od));
2123		2221
…		…
2144		2242
2145	static void	2243	static void
2146	coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)	2244	coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2147	{	2245	{
2148	AV *av;	2246	AV *av;
2149		2247
2150	if (coro->status)	2248	if (coro->status)
2151	{	2249	{
2152	av = coro->status;	2250	av = coro->status;
2153	av_clear (av);	2251	av_clear (av);
2154	}	2252	}
…		…
2201		2299
2202	coro = SvSTATE (arg [0]);	2300	coro = SvSTATE (arg [0]);
2203	coro_hv = coro->hv;	2301	coro_hv = coro->hv;
2204		2302
2205	coro_set_status (aTHX_ coro, arg + 1, items - 1);	2303	coro_set_status (aTHX_ coro, arg + 1, items - 1);
2206		2304
2207	if (ecb_expect_false (coro->flags & CF_NOCANCEL))	2305	if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2208	{	2306	{
2209	/* coro currently busy cancelling something, so just notify it */	2307	/* coro currently busy cancelling something, so just notify it */
2210	coro->slf_frame.data = (void *)coro;	2308	coro->slf_frame.data = (void *)coro;
2211		2309
…		…
2218	slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);	2316	slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2219	}	2317	}
2220	else	2318	else
2221	{	2319	{
2222	struct coro *self = SvSTATE_current;	2320	struct coro *self = SvSTATE_current;
		2321
		2322	if (!self)
		2323	croak ("Coro::cancel called outside of thread content,");
2223		2324
2224	/* otherwise we cancel directly, purely for speed reasons	2325	/* otherwise we cancel directly, purely for speed reasons
2225	* unfortunately, this requires some magic trickery, as	2326	* unfortunately, this requires some magic trickery, as
2226	* somebody else could cancel us, so we have to fight the cancellation.	2327	* somebody else could cancel us, so we have to fight the cancellation.
2227	* this is ugly, and hopefully fully worth the extra speed.	2328	* this is ugly, and hopefully fully worth the extra speed.
…		…
2337	else	2438	else
2338	{	2439	{
2339	av_clear (GvAV (PL_defgv));	2440	av_clear (GvAV (PL_defgv));
2340	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);	2441	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
2341		2442
		2443	if (ecb_expect_false (coro->swap_sv))
		2444	{
		2445	swap_svs_leave (coro);
		2446	SvREFCNT_dec_NN (coro->swap_sv);
		2447	coro->swap_sv = 0;
		2448	}
		2449
2342	coro->prio = 0;	2450	coro->prio = 0;
2343		2451
2344	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2452	if (ecb_expect_false (coro->cctx) && ecb_expect_false (coro->cctx->flags & CC_TRACE))
2345	api_trace (aTHX_ coro_current, 0);	2453	api_trace (aTHX_ coro_current, 0);
2346		2454
2347	frame->prepare = prepare_schedule;	2455	frame->prepare = prepare_schedule;
2348	av_push (av_async_pool, SvREFCNT_inc (hv));	2456	av_push (av_async_pool, SvREFCNT_inc (hv));
2349	}	2457	}
…		…
2390		2498
2391	static int	2499	static int
2392	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)	2500	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2393	{	2501	{
2394	SV *data = (SV *)frame->data;	2502	SV *data = (SV *)frame->data;
2395		2503
2396	if (CORO_THROW)	2504	if (CORO_THROW)
2397	return 0;	2505	return 0;
2398		2506
2399	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2507	if (SvTYPE (SvRV (data)) != SVt_PVAV)
2400	return 1;	2508	return 1;
…		…
2436	cb = sv_2mortal (coro->rouse_cb);	2544	cb = sv_2mortal (coro->rouse_cb);
2437	coro->rouse_cb = 0;	2545	coro->rouse_cb = 0;
2438	}	2546	}
2439		2547
2440	if (!SvROK (cb)	2548	if (!SvROK (cb)
2441	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2549	|| SvTYPE (SvRV (cb)) != SVt_PVCV
2442	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2550	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2443	croak ("Coro::rouse_wait called with illegal callback argument,");	2551	croak ("Coro::rouse_wait called with illegal callback argument,");
2444		2552
2445	{	2553	{
2446	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */	2554	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
…		…
2569		2677
2570	/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */	2678	/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2571	static void	2679	static void
2572	slf_destroy (pTHX_ struct coro *coro)	2680	slf_destroy (pTHX_ struct coro *coro)
2573	{	2681	{
2574	/* this callback is reserved for slf functions needing to do cleanup */	2682	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		2683
2578	/*	2684	/*
2579	* The on_destroy above most likely is from an SLF call.	2685	* The on_destroy below most likely is from an SLF call.
2580	* Since by definition the SLF call will not finish when we destroy	2686	* Since by definition the SLF call will not finish when we destroy
2581	* the coro, we will have to force-finish it here, otherwise	2687	* the coro, we will have to force-finish it here, otherwise
2582	* cleanup functions cannot call SLF functions.	2688	* cleanup functions cannot call SLF functions.
2583	*/	2689	*/
2584	coro->slf_frame.prepare = 0;	2690	coro->slf_frame.prepare = 0;
		2691
		2692	/* this callback is reserved for slf functions needing to do cleanup */
		2693	if (frame.destroy && frame.prepare && !PL_dirty)
		2694	frame.destroy (aTHX_ &frame);
2585	}	2695	}
2586		2696
2587	/*	2697	/*
2588	* these not obviously related functions are all rolled into one	2698	* these not obviously related functions are all rolled into one
2589	* function to increase chances that they all will call transfer with the same	2699	* function to increase chances that they all will call transfer with the same
…		…
2772	static void	2882	static void
2773	coro_pop_on_leave (pTHX_ void *coro)	2883	coro_pop_on_leave (pTHX_ void *coro)
2774	{	2884	{
2775	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);	2885	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2776	on_enterleave_call (aTHX_ sv_2mortal (cb));	2886	on_enterleave_call (aTHX_ sv_2mortal (cb));
		2887	}
		2888
		2889	static void
		2890	enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg)
		2891	{
		2892	if (!hook)
		2893	return;
		2894
		2895	if (!*avp)
		2896	{
		2897	*avp = newAV ();
		2898	AvREAL_off (*avp);
		2899	}
		2900
		2901	av_push (*avp, (SV *)hook);
		2902	av_push (*avp, (SV *)arg);
		2903	}
		2904
		2905	static void
		2906	enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute)
		2907	{
		2908	AV *av = *avp;
		2909	int i;
		2910
		2911	if (!av)
		2912	return;
		2913
		2914	for (i = AvFILLp (av) - 1; i >= 0; i -= 2)
		2915	if (AvARRAY (av)[i] == (SV *)hook)
		2916	{
		2917	if (execute)
		2918	hook (aTHX_ (void *)AvARRAY (av)[i + 1]);
		2919
		2920	memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1);
		2921	av_pop (av);
		2922	av_pop (av);
		2923	break;
		2924	}
		2925
		2926	if (AvFILLp (av) >= 0)
		2927	{
		2928	*avp = 0;
		2929	SvREFCNT_dec_NN (av);
		2930	}
		2931	}
		2932
		2933	static void
		2934	api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
		2935	{
		2936	struct coro *coro = SvSTATE (coro_sv);
		2937
		2938	if (SvSTATE_current == coro)
		2939	if (enter)
		2940	enter (aTHX_ enter_arg);
		2941
		2942	enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg);
		2943	enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg);
		2944	}
		2945
		2946	static void
		2947	api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave)
		2948	{
		2949	struct coro *coro = SvSTATE (coro_sv);
		2950
		2951	enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
		2952	enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro);
		2953	}
		2954
		2955	static void
		2956	savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter)
		2957	{
		2958	struct coro *coro = SvSTATE_current;
		2959
		2960	enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
		2961	}
		2962
		2963	static void
		2964	savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave)
		2965	{
		2966	struct coro *coro = SvSTATE_current;
		2967
		2968	enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1);
		2969	}
		2970
		2971	static void
		2972	api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
		2973	{
		2974	api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg);
		2975
		2976	/* this ought to be much cheaper than malloc + a single destructor call */
		2977	if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter);
		2978	if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave);
2777	}	2979	}
2778		2980
2779	/*****************************************************************************/	2981	/*****************************************************************************/
2780	/* PerlIO::cede */	2982	/* PerlIO::cede */
2781		2983
…		…
2911	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));	3113	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2912	PUTBACK;	3114	PUTBACK;
2913	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);	3115	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2914	}	3116	}
2915		3117
2916	SvREFCNT_dec (cb);	3118	SvREFCNT_dec_NN (cb);
2917	}	3119	}
2918	}	3120	}
2919		3121
2920	static void	3122	static void
2921	coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)	3123	coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
…		…
2929	{	3131	{
2930	AV *av = (AV *)frame->data;	3132	AV *av = (AV *)frame->data;
2931	SV *count_sv = AvARRAY (av)[0];	3133	SV *count_sv = AvARRAY (av)[0];
2932	SV *coro_hv = SvRV (coro_current);	3134	SV *coro_hv = SvRV (coro_current);
2933		3135
		3136	frame->destroy = 0;
		3137
2934	/* if we are about to throw, don't actually acquire the lock, just throw */	3138	/* if we are about to throw, don't actually acquire the lock, just throw */
2935	if (CORO_THROW)	3139	if (ecb_expect_false (CORO_THROW))
		3140	{
		3141	/* we still might be responsible for the semaphore, so wake up others */
		3142	coro_semaphore_adjust (aTHX_ av, 0);
		3143
2936	return 0;	3144	return 0;
		3145	}
2937	else if (SvIVX (count_sv) > 0)	3146	else if (SvIVX (count_sv) > 0)
2938	{	3147	{
2939	frame->destroy = 0;
2940
2941	if (acquire)	3148	if (acquire)
2942	SvIVX (count_sv) = SvIVX (count_sv) - 1;	3149	SvIVX (count_sv) = SvIVX (count_sv) - 1;
2943	else	3150	else
2944	coro_semaphore_adjust (aTHX_ av, 0);	3151	coro_semaphore_adjust (aTHX_ av, 0);
2945		3152
…		…
2949	{	3156	{
2950	int i;	3157	int i;
2951	/* if we were woken up but can't down, we look through the whole */	3158	/* 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 */	3159	/* waiters list and only add us if we aren't in there already */
2953	/* this avoids some degenerate memory usage cases */	3160	/* this avoids some degenerate memory usage cases */
2954	for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug	3161	for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2955	if (AvARRAY (av)[i] == coro_hv)	3162	if (AvARRAY (av)[i] == coro_hv)
2956	return 1;	3163	return 1;
2957		3164
2958	av_push (av, SvREFCNT_inc (coro_hv));	3165	av_push (av, SvREFCNT_inc (coro_hv));
2959	return 1;	3166	return 1;
…		…
3056	{	3263	{
3057	api_ready (aTHX_ cb);	3264	api_ready (aTHX_ cb);
3058	sv_setiv (cb, 0); /* signal waiter */	3265	sv_setiv (cb, 0); /* signal waiter */
3059	}	3266	}
3060		3267
3061	SvREFCNT_dec (cb);	3268	SvREFCNT_dec_NN (cb);
3062		3269
3063	--count;	3270	--count;
3064	}	3271	}
3065	}	3272	}
3066		3273
…		…
3151	}	3358	}
3152		3359
3153	av_push (state, data_sv);	3360	av_push (state, data_sv);
3154		3361
3155	api_ready (aTHX_ coro);	3362	api_ready (aTHX_ coro);
3156	SvREFCNT_dec (coro);	3363	SvREFCNT_dec_NN (coro);
3157	SvREFCNT_dec ((AV *)state);	3364	SvREFCNT_dec_NN ((AV *)state);
3158	}	3365	}
3159		3366
3160	static int	3367	static int
3161	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	3368	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
3162	{	3369	{
…		…
3167	/* it quickly returns */	3374	/* it quickly returns */
3168	if (CORO_THROW)	3375	if (CORO_THROW)
3169	return 0;	3376	return 0;
3170		3377
3171	/* one element that is an RV? repeat! */	3378	/* one element that is an RV? repeat! */
3172	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	3379	if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
3173	return 1;	3380	return 1;
3174		3381
3175	/* restore status */	3382	/* restore status */
3176	{	3383	{
3177	SV *data_sv = av_pop (state);	3384	SV *data_sv = av_pop (state);
…		…
3180	errno = data->errorno;	3387	errno = data->errorno;
3181	PL_laststype = data->laststype;	3388	PL_laststype = data->laststype;
3182	PL_laststatval = data->laststatval;	3389	PL_laststatval = data->laststatval;
3183	PL_statcache = data->statcache;	3390	PL_statcache = data->statcache;
3184		3391
3185	SvREFCNT_dec (data_sv);	3392	SvREFCNT_dec_NN (data_sv);
3186	}	3393	}
3187		3394
3188	/* push result values */	3395	/* push result values */
3189	{	3396	{
3190	dSP;	3397	dSP;
…		…
3339	#endif	3546	#endif
3340		3547
3341	#if CORO_JIT	3548	#if CORO_JIT
3342		3549
3343	static void ecb_noinline ecb_cold	3550	static void ecb_noinline ecb_cold
3344	pushav_3uv (pTHX_ UV a, UV b, UV c)	3551	pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3345	{	3552	{
3346	dSP;	3553	dSP;
3347	AV *av = newAV ();	3554	AV *av = newAV ();
3348		3555
		3556	av_store (av, 3, newSVuv (d));
3349	av_store (av, 2, newSVuv (c));	3557	av_store (av, 2, newSVuv (c));
3350	av_store (av, 1, newSVuv (b));	3558	av_store (av, 1, newSVuv (b));
3351	av_store (av, 0, newSVuv (a));	3559	av_store (av, 0, newSVuv (a));
3352		3560
3353	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	3561	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
…		…
3360	{	3568	{
3361	dSP;	3569	dSP;
3362	SV *load, *save;	3570	SV *load, *save;
3363	char *map_base;	3571	char *map_base;
3364	char *load_ptr, *save_ptr;	3572	char *load_ptr, *save_ptr;
3365	STRLEN load_len, save_len;	3573	STRLEN load_len, save_len, map_len;
3366	int count;	3574	int count;
3367		3575
		3576	eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
		3577
3368	PUSHMARK (SP);	3578	PUSHMARK (SP);
3369	PUTBACK;
3370	#define VARx(name,expr,type) pushav_3uv (aTHX_ (UV)&(expr), offsetof (perl_slots, name), sizeof (type));	3579	#define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3371	# include "state.h"	3580	#include "state.h"
3372	#undef VARx
3373	count = call_pv ("Coro::State::_jit", G_ARRAY);	3581	count = call_pv ("Coro::State::_jit", G_ARRAY);
3374	SPAGAIN;	3582	SPAGAIN;
3375		3583
3376	save = POPs; save_ptr = SvPVbyte (save, save_len);	3584	save = POPs; save_ptr = SvPVbyte (save, save_len);
3377	load = POPs; load_ptr = SvPVbyte (load, load_len);	3585	load = POPs; load_ptr = SvPVbyte (load, load_len);
3378		3586
		3587	map_len = load_len + save_len + 16;
		3588
3379	map_base = mmap (0, load_len + save_len + 16, PROT_EXEC | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);	3589	map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3380		3590
3381	assert (("Coro: unable mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));	3591	assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3382		3592
3383	load_perl_slots = (load_save_perl_slots_type)map_base;	3593	load_perl_slots = (load_save_perl_slots_type)map_base;
3384	memcpy (map_base, load_ptr, load_len);	3594	memcpy (map_base, load_ptr, load_len);
3385		3595
3386	map_base += (load_len + 15) & ~15;	3596	map_base += (load_len + 15) & ~15;
3387		3597
3388	save_perl_slots = (load_save_perl_slots_type)map_base;	3598	save_perl_slots = (load_save_perl_slots_type)map_base;
3389	memcpy (map_base, save_ptr, save_len);	3599	memcpy (map_base, save_ptr, save_len);
		3600
		3601	/* we are good citizens and try to make the page read-only, so the evil evil */
		3602	/* hackers might have it a bit more difficult */
		3603	mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
		3604
		3605	PUTBACK;
		3606	eval_pv ("undef &Coro::State::_jit", 1);
3390	}	3607	}
3391		3608
3392	#endif	3609	#endif
3393		3610
3394	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	3611	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
3395		3612
3396	PROTOTYPES: DISABLE	3613	PROTOTYPES: DISABLE
3397		3614
3398	BOOT:	3615	BOOT:
3399	{	3616	{
		3617	#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
		3618	#include "state.h"
3400	#ifdef USE_ITHREADS	3619	#ifdef USE_ITHREADS
3401	# if CORO_PTHREAD	3620	# if CORO_PTHREAD
3402	coro_thx = PERL_GET_CONTEXT;	3621	coro_thx = PERL_GET_CONTEXT;
3403	# endif	3622	# endif
3404	#endif	3623	#endif
3405	BOOT_PAGESIZE;
3406
3407	/* perl defines these to check for existance first, but why it doesn't */	3624	/* 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 */	3625	/* just create them one at init time is not clear to me, except for */
3409	/* programs trying to delete them, but... */	3626	/* programs trying to delete them, but... */
3410	/* anyway, we declare this as invalid and make sure they are initialised here */	3627	/* anyway, we declare this as invalid and make sure they are initialised here */
3411	DEFSV;	3628	DEFSV;
…		…
3418		3635
3419	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	3636	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;	3637	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;	3638	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
3422		3639
3423	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
3424	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));	3640	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));	3641	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
3426		3642
3427	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	3643	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
3428		3644
…		…
3462	time_init (aTHX);	3678	time_init (aTHX);
3463		3679
3464	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));	3680	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3465	#if CORO_JIT	3681	#if CORO_JIT
3466	PUTBACK;	3682	PUTBACK;
3467	require_pv ("Coro/jit-" CORO_JIT_TYPE ".pl");
3468	jit_init (aTHX);	3683	jit_init (aTHX);
3469	perl_eval_pv ("undef &Coro::State::_jit", 1);
3470	SPAGAIN;	3684	SPAGAIN;
3471	#endif	3685	#endif
3472	}	3686	}
3473		3687
3474	SV *	3688	SV *
…		…
3483	void	3697	void
3484	transfer (...)	3698	transfer (...)
3485	PROTOTYPE: $$	3699	PROTOTYPE: $$
3486	CODE:	3700	CODE:
3487	CORO_EXECUTE_SLF_XS (slf_init_transfer);	3701	CORO_EXECUTE_SLF_XS (slf_init_transfer);
3488
3489	void
3490	_exit (int code)
3491	PROTOTYPE: $
3492	CODE:
3493	_exit (code);
3494		3702
3495	SV *	3703	SV *
3496	clone (Coro::State coro)	3704	clone (Coro::State coro)
3497	CODE:	3705	CODE:
3498	{	3706	{
…		…
3553	void	3761	void
3554	list ()	3762	list ()
3555	PROTOTYPE:	3763	PROTOTYPE:
3556	PPCODE:	3764	PPCODE:
3557	{	3765	{
3558	struct coro *coro;	3766	struct coro *coro;
3559	for (coro = coro_first; coro; coro = coro->next)	3767	for (coro = coro_first; coro; coro = coro->next)
3560	if (coro->hv)	3768	if (coro->hv)
3561	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));	3769	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
3562	}	3770	}
3563		3771
…		…
3627	RETVAL = boolSV (coro->flags & ix);	3835	RETVAL = boolSV (coro->flags & ix);
3628	OUTPUT:	3836	OUTPUT:
3629	RETVAL	3837	RETVAL
3630		3838
3631	void	3839	void
3632	throw (Coro::State self, SV *exception = &PL_sv_undef)	3840	throw (SV *self, SV *exception = &PL_sv_undef)
3633	PROTOTYPE: $;$	3841	PROTOTYPE: $;$
3634	CODE:	3842	CODE:
3635	{	3843	{
		3844	struct coro *coro = SvSTATE (self);
3636	struct coro *current = SvSTATE_current;	3845	struct coro *current = SvSTATE_current;
3637	SV **exceptionp = self == current ? &CORO_THROW : &self->except;	3846	SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3638	SvREFCNT_dec (*exceptionp);	3847	SvREFCNT_dec (*exceptionp);
3639	SvGETMAGIC (exception);	3848	SvGETMAGIC (exception);
3640	*exceptionp = SvOK (exception) ? newSVsv (exception) : 0;	3849	*exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
		3850
		3851	api_ready (aTHX_ self);
3641	}	3852	}
3642		3853
3643	void	3854	void
3644	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3855	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3645	PROTOTYPE: $;$	3856	PROTOTYPE: $;$
…		…
3722		3933
3723	void	3934	void
3724	times (Coro::State self)	3935	times (Coro::State self)
3725	PPCODE:	3936	PPCODE:
3726	{	3937	{
3727	struct coro *current = SvSTATE (coro_current);	3938	struct coro *current = SvSTATE (coro_current);
3728		3939
3729	if (ecb_expect_false (current == self))	3940	if (ecb_expect_false (current == self))
3730	{	3941	{
3731	coro_times_update ();	3942	coro_times_update ();
3732	coro_times_add (SvSTATE (coro_current));	3943	coro_times_add (SvSTATE (coro_current));
…		…
3739	if (ecb_expect_false (current == self))	3950	if (ecb_expect_false (current == self))
3740	coro_times_sub (SvSTATE (coro_current));	3951	coro_times_sub (SvSTATE (coro_current));
3741	}	3952	}
3742		3953
3743	void	3954	void
3744	swap_sv (Coro::State coro, SV *sv, SV *swapsv)	3955	swap_sv (Coro::State coro, SV *sva, SV *svb)
3745	CODE:	3956	CODE:
3746	{	3957	{
3747	struct coro *current = SvSTATE_current;	3958	struct coro *current = SvSTATE_current;
		3959	AV *swap_sv;
		3960	int i;
		3961
		3962	sva = SvRV (sva);
		3963	svb = SvRV (svb);
3748		3964
3749	if (current == coro)	3965	if (current == coro)
3750	SWAP_SVS (current);	3966	SWAP_SVS_LEAVE (current);
3751		3967
3752	if (!coro->swap_sv)	3968	if (!coro->swap_sv)
3753	coro->swap_sv = newAV ();	3969	coro->swap_sv = newAV ();
3754		3970
		3971	swap_sv = coro->swap_sv;
		3972
		3973	for (i = AvFILLp (swap_sv) - 1; i >= 0; i -= 2)
		3974	{
		3975	SV *a = AvARRAY (swap_sv)[i ];
		3976	SV *b = AvARRAY (swap_sv)[i + 1];
		3977
		3978	if (a == sva && b == svb)
		3979	{
		3980	SvREFCNT_dec_NN (a);
		3981	SvREFCNT_dec_NN (b);
		3982
		3983	for (; i <= AvFILLp (swap_sv) - 2; i++)
		3984	AvARRAY (swap_sv)[i] = AvARRAY (swap_sv)[i + 2];
		3985
		3986	AvFILLp (swap_sv) -= 2;
		3987
		3988	goto removed;
		3989	}
		3990	}
		3991
3755	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));	3992	av_push (swap_sv, SvREFCNT_inc_NN (sva));
3756	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));	3993	av_push (swap_sv, SvREFCNT_inc_NN (svb));
		3994
		3995	removed:
3757		3996
3758	if (current == coro)	3997	if (current == coro)
3759	SWAP_SVS (current);	3998	SWAP_SVS_ENTER (current);
3760	}	3999	}
3761		4000
3762		4001
3763	MODULE = Coro::State PACKAGE = Coro	4002	MODULE = Coro::State PACKAGE = Coro
3764		4003
3765	BOOT:	4004	BOOT:
3766	{	4005	{
		4006	if (SVt_LAST > 32)
		4007	croak ("Coro internal error: SVt_LAST > 32, swap_sv might need adjustment");
		4008
3767	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	4009	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3768	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	4010	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3769	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);	4011	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3770	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	4012	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);	4013	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
…		…
3775		4017
3776	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	4018	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);	4019	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);	4020	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 */	4021	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3780		4022
3781	coro_stash = gv_stashpv ("Coro", TRUE);	4023	coro_stash = gv_stashpv ("Coro", TRUE);
3782		4024
3783	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));	4025	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3784	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));	4026	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3785	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));	4027	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
…		…
3797	coroapi.ready = api_ready;	4039	coroapi.ready = api_ready;
3798	coroapi.is_ready = api_is_ready;	4040	coroapi.is_ready = api_is_ready;
3799	coroapi.nready = coro_nready;	4041	coroapi.nready = coro_nready;
3800	coroapi.current = coro_current;	4042	coroapi.current = coro_current;
3801		4043
		4044	coroapi.enterleave_hook = api_enterleave_hook;
		4045	coroapi.enterleave_unhook = api_enterleave_unhook;
		4046	coroapi.enterleave_scope_hook = api_enterleave_scope_hook;
		4047
3802	/*GCoroAPI = &coroapi;*/	4048	/*GCoroAPI = &coroapi;*/
3803	sv_setiv (sv, (IV)&coroapi);	4049	sv_setiv (sv, (IV)&coroapi);
3804	SvREADONLY_on (sv);	4050	SvREADONLY_on (sv);
3805	}	4051	}
3806	}	4052	}
…		…
3871		4117
3872	void	4118	void
3873	_set_current (SV *current)	4119	_set_current (SV *current)
3874	PROTOTYPE: $	4120	PROTOTYPE: $
3875	CODE:	4121	CODE:
3876	SvREFCNT_dec (SvRV (coro_current));	4122	SvREFCNT_dec_NN (SvRV (coro_current));
3877	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));	4123	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
3878		4124
3879	void	4125	void
3880	_set_readyhook (SV *hook)	4126	_set_readyhook (SV *hook)
3881	PROTOTYPE: $	4127	PROTOTYPE: $
…		…
3965		4211
3966	if ((SV *)hv == &PL_sv_undef)	4212	if ((SV *)hv == &PL_sv_undef)
3967	{	4213	{
3968	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);	4214	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3969	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));	4215	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3970	SvREFCNT_dec (sv);	4216	SvREFCNT_dec_NN (sv);
3971	}	4217	}
3972		4218
3973	{	4219	{
3974	struct coro *coro = SvSTATE_hv (hv);	4220	struct coro *coro = SvSTATE_hv (hv);
3975		4221
…		…
3982	api_ready (aTHX_ (SV *)hv);	4228	api_ready (aTHX_ (SV *)hv);
3983		4229
3984	if (GIMME_V != G_VOID)	4230	if (GIMME_V != G_VOID)
3985	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));	4231	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3986	else	4232	else
3987	SvREFCNT_dec (hv);	4233	SvREFCNT_dec_NN (hv);
3988	}	4234	}
3989		4235
3990	SV *	4236	SV *
3991	rouse_cb ()	4237	rouse_cb ()
3992	PROTOTYPE:	4238	PROTOTYPE:
…		…
4007	on_leave = 1	4253	on_leave = 1
4008	PROTOTYPE: &	4254	PROTOTYPE: &
4009	CODE:	4255	CODE:
4010	{	4256	{
4011	struct coro *coro = SvSTATE_current;	4257	struct coro *coro = SvSTATE_current;
4012	AV **avp = ix ? &coro->on_leave : &coro->on_enter;	4258	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4013		4259
4014	block = s_get_cv_croak (block);	4260	block = s_get_cv_croak (block);
4015		4261
4016	if (!*avp)	4262	if (!*avp)
4017	*avp = newAV ();	4263	*avp = newAV ();
…		…
4037		4283
4038	SV *	4284	SV *
4039	new (SV *klass, SV *count = 0)	4285	new (SV *klass, SV *count = 0)
4040	CODE:	4286	CODE:
4041	{	4287	{
4042	int semcnt = 1;	4288	int semcnt = 1;
4043		4289
4044	if (count)	4290	if (count)
4045	{	4291	{
4046	SvGETMAGIC (count);	4292	SvGETMAGIC (count);
4047		4293
…		…
4071	RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]);	4317	RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]);
4072	OUTPUT:	4318	OUTPUT:
4073	RETVAL	4319	RETVAL
4074		4320
4075	void	4321	void
4076	up (SV *self, int adjust = 1)	4322	up (SV *self)
4077	ALIAS:
4078	adjust = 1
4079	CODE:	4323	CODE:
		4324	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), 1);
		4325
		4326	void
		4327	adjust (SV *self, int adjust)
		4328	CODE:
4080	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	4329	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), adjust);
4081		4330
4082	void	4331	void
4083	down (...)	4332	down (...)
4084	CODE:	4333	CODE:
4085	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	4334	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
…		…
4107	XSRETURN_NO;	4356	XSRETURN_NO;
4108	}	4357	}
4109		4358
4110	void	4359	void
4111	waiters (SV *self)	4360	waiters (SV *self)
4112	PPCODE:	4361	PPCODE:
4113	{	4362	{
4114	AV *av = (AV *)SvRV (self);	4363	AV *av = (AV *)SvRV (self);
4115	int wcount = AvFILLp (av) + 1 - 1;	4364	int wcount = AvFILLp (av) + 1 - 1;
4116		4365
4117	if (GIMME_V == G_SCALAR)	4366	if (GIMME_V == G_SCALAR)
…		…
4126	}	4375	}
4127		4376
4128	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet	4377	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4129		4378
4130	void	4379	void
4131	_may_delete (SV *sem, int count, int extra_refs)	4380	_may_delete (SV *sem, int count, unsigned int extra_refs)
4132	PPCODE:	4381	PPCODE:
4133	{	4382	{
4134	AV *av = (AV *)SvRV (sem);	4383	AV *av = (AV *)SvRV (sem);
4135		4384
4136	if (SvREFCNT ((SV *)av) == 1 + extra_refs	4385	if (SvREFCNT ((SV *)av) == 1 + extra_refs
4137	&& AvFILLp (av) == 0 /* no waiters, just count */	4386	&& AvFILLp (av) == 0 /* no waiters, just count */
4138	&& SvIV (AvARRAY (av)[0]) == count)	4387	&& SvIV (AvARRAY (av)[0]) == count)
4139	XSRETURN_YES;	4388	XSRETURN_YES;
…		…
4160		4409
4161	void	4410	void
4162	broadcast (SV *self)	4411	broadcast (SV *self)
4163	CODE:	4412	CODE:
4164	{	4413	{
4165	AV *av = (AV *)SvRV (self);	4414	AV *av = (AV *)SvRV (self);
4166	coro_signal_wake (aTHX_ av, AvFILLp (av));	4415	coro_signal_wake (aTHX_ av, AvFILLp (av));
4167	}	4416	}
4168		4417
4169	void	4418	void
4170	send (SV *self)	4419	send (SV *self)
…		…
4178	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */	4427	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
4179	}	4428	}
4180		4429
4181	IV	4430	IV
4182	awaited (SV *self)	4431	awaited (SV *self)
4183	CODE:	4432	CODE:
4184	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;	4433	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
4185	OUTPUT:	4434	OUTPUT:
4186	RETVAL	4435	RETVAL
4187		4436
4188		4437
…		…
4193		4442
4194	void	4443	void
4195	_schedule (...)	4444	_schedule (...)
4196	CODE:	4445	CODE:
4197	{	4446	{
4198	static int incede;	4447	static int incede;
4199		4448
4200	api_cede_notself (aTHX);	4449	api_cede_notself (aTHX);
4201		4450
4202	++incede;	4451	++incede;
4203	while (coro_nready >= incede && api_cede (aTHX))	4452	while (coro_nready >= incede && api_cede (aTHX))
…		…
4247	{	4496	{
4248	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;	4497	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4249	coro_old_pp_sselect = 0;	4498	coro_old_pp_sselect = 0;
4250	}	4499	}
4251		4500
		4501	MODULE = Coro::State PACKAGE = Coro::Util
		4502
		4503	void
		4504	_exit (int code)
		4505	CODE:
		4506	_exit (code);
		4507
		4508	NV
		4509	time ()
		4510	CODE:
		4511	RETVAL = nvtime (aTHX);
		4512	OUTPUT:
		4513	RETVAL
		4514
		4515	NV
		4516	gettimeofday ()
		4517	PPCODE:
		4518	{
		4519	UV tv [2];
		4520	u2time (aTHX_ tv);
		4521	EXTEND (SP, 2);
		4522	PUSHs (sv_2mortal (newSVuv (tv [0])));
		4523	PUSHs (sv_2mortal (newSVuv (tv [1])));
		4524	}
		4525

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