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Comparing Coro/Coro/State.xs (file contents):
Revision 1.404 by root, Fri Jun 10 12:27:02 2011 UTC vs.
Revision 1.479 by root, Thu Jun 24 19:10:06 2021 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
		8	#if CORO_UCONTEXT
		9	#define CORO_BACKEND "ucontext"
		10	#elif CORO_SJLJ
		11	#define CORO_BACKEND "sjlj"
		12	#elif CORO_LINUX
		13	#define CORO_BACKEND "linux"
		14	#elif CORO_LOSER
		15	#define CORO_BACKEND "loser"
		16	#elif CORO_FIBER
		17	#define CORO_BACKEND "fiber"
		18	#elif CORO_IRIX
		19	#define CORO_BACKEND "irix"
		20	#elif CORO_ASM
		21	#define CORO_BACKEND "asm"
		22	#elif CORO_PTHREAD
		23	#define CORO_BACKEND "pthread"
		24	#else
		25	#define CORO_BACKEND "unknown"
		26	#endif
7		27
8	#define PERL_NO_GET_CONTEXT	28	#define PERL_NO_GET_CONTEXT
9	#define PERL_EXT	29	#define PERL_EXT
10		30
11	#include "EXTERN.h"	31	#include "EXTERN.h"
12	#include "perl.h"	32	#include "perl.h"
13	#include "XSUB.h"	33	#include "XSUB.h"
14	#include "perliol.h"	34	#include "perliol.h"
15		35
16	#include "schmorp.h"	36	#include "schmorp.h"
		37
		38	#define ECB_NO_THREADS 1
		39	#define ECB_NO_LIBM 1
17	#include "ecb.h"	40	#include "ecb.h"
18		41
19	#include <stddef.h>	42	#include <stddef.h>
20	#include <stdio.h>	43	#include <stdio.h>
21	#include <errno.h>	44	#include <errno.h>
22	#include <assert.h>	45	#include <assert.h>
23		46
		47	#ifndef SvREFCNT_dec_NN
		48	#define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv)
		49	#endif
		50
		51	#ifndef SvREFCNT_inc_NN
		52	#define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
		53	#endif
		54
24	#ifndef SVs_PADSTALE	55	#ifndef SVs_PADSTALE
25	# define SVs_PADSTALE 0	56	# define SVs_PADSTALE 0
		57	#endif
		58
		59	#ifdef PadARRAY
		60	# define NEWPADAPI 1
		61	# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
		62	#else
		63	typedef AV PADNAMELIST;
		64	# if !PERL_VERSION_ATLEAST(5,8,0)
		65	typedef AV PADLIST;
		66	typedef AV PAD;
		67	# endif
		68	# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
		69	# define PadlistMAX(pl) AvFILLp (pl)
		70	# define PadlistNAMES(pl) (*PadlistARRAY (pl))
		71	# define PadARRAY AvARRAY
		72	# define PadMAX AvFILLp
		73	# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
		74	#endif
		75	#ifndef PadnamelistREFCNT
		76	# define PadnamelistREFCNT(pnl) SvREFCNT (pnl)
		77	#endif
		78	#ifndef PadnamelistREFCNT_dec
		79	# define PadnamelistREFCNT_dec(pnl) SvREFCNT_dec (pnl)
		80	#endif
		81
		82	/* 5.19.something has replaced SVt_BIND by SVt_INVLIST */
		83	/* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */
		84	#if PERL_VERSION_ATLEAST(5,19,0)
		85	# define SVt_BIND SVt_IV
26	#endif	86	#endif
27		87
28	#if defined(_WIN32)	88	#if defined(_WIN32)
29	# undef HAS_GETTIMEOFDAY	89	# undef HAS_GETTIMEOFDAY
30	# undef setjmp	90	# undef setjmp
…		…
33	# define setjmp _setjmp /* deep magic */	93	# define setjmp _setjmp /* deep magic */
34	#else	94	#else
35	# include <inttypes.h> /* most portable stdint.h */	95	# include <inttypes.h> /* most portable stdint.h */
36	#endif	96	#endif
37		97
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 */	98	/* the maximum number of idle cctx that will be pooled */
66	static int cctx_max_idle = 4;	99	static int cctx_max_idle = 4;
67		100
68	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	101	#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
69	# undef CORO_STACKGUARD	102	# define HAS_SCOPESTACK_NAME 1
70	#endif
71
72	#ifndef CORO_STACKGUARD
73	# define CORO_STACKGUARD 0
74	#endif	103	#endif
75		104
76	/* prefer perl internal functions over our own? */	105	/* prefer perl internal functions over our own? */
77	#ifndef CORO_PREFER_PERL_FUNCTIONS	106	#ifndef CORO_PREFER_PERL_FUNCTIONS
78	# define CORO_PREFER_PERL_FUNCTIONS 0	107	# define CORO_PREFER_PERL_FUNCTIONS 0
…		…
107	# define CORO_CLOCK_MONOTONIC 1	136	# define CORO_CLOCK_MONOTONIC 1
108	# define CORO_CLOCK_THREAD_CPUTIME_ID 3	137	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
109	# endif	138	# endif
110	#endif	139	#endif
111		140
		141	/* one off bugfix for perl 5.22 */
		142	#if PERL_VERSION_ATLEAST(5,22,0) && !PERL_VERSION_ATLEAST(5,24,0)
		143	# undef PadlistNAMES
		144	# define PadlistNAMES(pl) *((PADNAMELIST **)PadlistARRAY (pl))
		145	#endif
		146
		147	#if PERL_VERSION_ATLEAST(5,24,0)
		148	# define SUB_ARGARRAY PL_curpad[0]
		149	#else
		150	# define SUB_ARGARRAY (SV *)cx->blk_sub.argarray
		151	#endif
		152
		153	/* perl usually suppresses asserts. for debugging, we sometimes force it to be on */
		154	#if 0
		155	# undef NDEBUG
		156	# include <assert.h>
		157	#endif
		158
112	static double (*nvtime)(); /* so why doesn't it take void? */	159	static double (*nvtime)(); /* so why doesn't it take void? */
113	static void (*u2time)(pTHX_ UV ret[2]);	160	static void (*u2time)(pTHX_ UV ret[2]);
114		161
115	/* we hijack an hopefully unused CV flag for our purposes */	162	/* we hijack an hopefully unused CV flag for our purposes */
116	#define CVf_SLF 0x4000	163	#define CVf_SLF 0x4000
…		…
131		178
132	static GV *irsgv; /* $/ */	179	static GV *irsgv; /* $/ */
133	static GV *stdoutgv; /* *STDOUT */	180	static GV *stdoutgv; /* *STDOUT */
134	static SV *rv_diehook;	181	static SV *rv_diehook;
135	static SV *rv_warnhook;	182	static SV *rv_warnhook;
136	static HV *hv_sig; /* %SIG */
137		183
138	/* async_pool helper stuff */	184	/* async_pool helper stuff */
139	static SV *sv_pool_rss;	185	static SV *sv_pool_rss;
140	static SV *sv_pool_size;	186	static SV *sv_pool_size;
141	static SV *sv_async_pool_idle; /* description string */	187	static SV *sv_async_pool_idle; /* description string */
…		…
169	typedef struct coro_cctx	215	typedef struct coro_cctx
170	{	216	{
171	struct coro_cctx *next;	217	struct coro_cctx *next;
172		218
173	/* the stack */	219	/* the stack */
174	void *sptr;	220	struct coro_stack stack;
175	size_t ssize;
176		221
177	/* cpu state */	222	/* cpu state */
178	void *idle_sp; /* sp of top-level transfer/schedule/cede call */	223	void *idle_sp; /* sp of top-level transfer/schedule/cede call */
		224	#ifndef NDEBUG
179	JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */	225	JMPENV *idle_te; /* same as idle_sp, but for top_env */
		226	#endif
180	JMPENV *top_env;	227	JMPENV *top_env;
181	coro_context cctx;	228	coro_context cctx;
182		229
183	U32 gen;	230	U32 gen;
184	#if CORO_USE_VALGRIND	231	#if CORO_USE_VALGRIND
…		…
204	};	251	};
205		252
206	/* the structure where most of the perl state is stored, overlaid on the cxstack */	253	/* the structure where most of the perl state is stored, overlaid on the cxstack */
207	typedef struct	254	typedef struct
208	{	255	{
209	SV *defsv;
210	AV *defav;
211	SV *errsv;
212	SV *irsgv;
213	HV *hinthv;
214	#define VAR(name,type) type name;	256	#define VARx(name,expr,type) type name;
215	# include "state.h"	257	#include "state.h"
216	#undef VAR
217	} perl_slots;	258	} perl_slots;
218		259
219	// how many context stack entries do we need for perl_slots	260	/* how many context stack entries do we need for perl_slots */
220	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))	261	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
221		262
222	/* this is a structure representing a perl-level coroutine */	263	/* this is a structure representing a perl-level coroutine */
223	struct coro	264	struct coro
224	{	265	{
…		…
242	int usecount; /* number of transfers to this coro */	283	int usecount; /* number of transfers to this coro */
243		284
244	/* coro process data */	285	/* coro process data */
245	int prio;	286	int prio;
246	SV *except; /* exception to be thrown */	287	SV *except; /* exception to be thrown */
247	SV *rouse_cb; /* last rouse callback */	288	SV *rouse_cb; /* most recently created rouse callback */
248	AV *on_destroy; /* callbacks or coros to notify on destroy */	289	AV *on_destroy; /* callbacks or coros to notify on destroy */
249	AV *status; /* the exit status list */	290	AV *status; /* the exit status list */
250		291
251	/* async_pool */	292	/* async_pool */
252	SV *saved_deffh;	293	SV *saved_deffh;
253	SV *invoke_cb;	294	SV *invoke_cb;
254	AV *invoke_av;	295	AV *invoke_av;
255		296
256	/* on_enter/on_leave */	297	/* on_enter/on_leave */
257	AV *on_enter;	298	AV *on_enter; AV *on_enter_xs;
258	AV *on_leave;	299	AV *on_leave; AV *on_leave_xs;
259		300
260	/* swap_sv */	301	/* swap_sv */
261	AV *swap_sv;	302	AV *swap_sv;
262		303
263	/* times */	304	/* times */
…		…
290	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */	331	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
291	static CV *cv_coro_run;	332	static CV *cv_coro_run;
292	static struct coro *coro_first;	333	static struct coro *coro_first;
293	#define coro_nready coroapi.nready	334	#define coro_nready coroapi.nready
294		335
		336	/** JIT *********************************************************************/
		337
		338	#if CORO_JIT
		339	/* APPLE doesn't have mmap though */
		340	#define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
		341	#ifndef CORO_JIT_TYPE
		342	#if ECB_AMD64 && CORO_JIT_UNIXY
		343	#define CORO_JIT_TYPE "amd64-unix"
		344	#elif __i386 && CORO_JIT_UNIXY
		345	#define CORO_JIT_TYPE "x86-unix"
		346	#endif
		347	#endif
		348	#endif
		349
		350	#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
		351	#undef CORO_JIT
		352	#endif
		353
		354	#if CORO_JIT
		355	typedef void (*load_save_perl_slots_type)(perl_slots *);
		356	static load_save_perl_slots_type load_perl_slots, save_perl_slots;
		357	#endif
		358
295	/** Coro::Select ************************************************************/	359	/** Coro::Select ************************************************************/
296		360
297	static OP *(*coro_old_pp_sselect) (pTHX);	361	static OP *(*coro_old_pp_sselect) (pTHX);
298	static SV *coro_select_select;	362	static SV *coro_select_select;
299		363
…		…
314		378
315	/** time stuff **************************************************************/	379	/** time stuff **************************************************************/
316		380
317	#ifdef HAS_GETTIMEOFDAY	381	#ifdef HAS_GETTIMEOFDAY
318		382
319	ECB_INLINE void	383	ecb_inline void
320	coro_u2time (pTHX_ UV ret[2])	384	coro_u2time (pTHX_ UV ret[2])
321	{	385	{
322	struct timeval tv;	386	struct timeval tv;
323	gettimeofday (&tv, 0);	387	gettimeofday (&tv, 0);
324		388
325	ret [0] = tv.tv_sec;	389	ret [0] = tv.tv_sec;
326	ret [1] = tv.tv_usec;	390	ret [1] = tv.tv_usec;
327	}	391	}
328		392
329	ECB_INLINE double	393	ecb_inline double
330	coro_nvtime ()	394	coro_nvtime (void)
331	{	395	{
332	struct timeval tv;	396	struct timeval tv;
333	gettimeofday (&tv, 0);	397	gettimeofday (&tv, 0);
334		398
335	return tv.tv_sec + tv.tv_usec * 1e-6;	399	return tv.tv_sec + tv.tv_usec * 1e-6;
336	}	400	}
337		401
338	ECB_INLINE void	402	ecb_inline void
339	time_init (pTHX)	403	time_init (pTHX)
340	{	404	{
341	nvtime = coro_nvtime;	405	nvtime = coro_nvtime;
342	u2time = coro_u2time;	406	u2time = coro_u2time;
343	}	407	}
344		408
345	#else	409	#else
346		410
347	ECB_INLINE void	411	ecb_inline void
348	time_init (pTHX)	412	time_init (pTHX)
349	{	413	{
350	SV **svp;	414	SV **svp;
351		415
352	require_pv ("Time/HiRes.pm");	416	require_pv ("Time/HiRes.pm");
353		417
354	svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);	418	svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
355		419
356	if (!svp) croak ("Time::HiRes is required, but missing. Caught");	420	if (!svp) croak ("Time::HiRes is required, but missing. Caught");
357	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");	421	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
358		422
…		…
394	get_hv (name, create);	458	get_hv (name, create);
395	#endif	459	#endif
396	return get_hv (name, create);	460	return get_hv (name, create);
397	}	461	}
398		462
399	ECB_INLINE void	463	ecb_inline void
400	coro_times_update ()	464	coro_times_update (void)
401	{	465	{
402	#ifdef coro_clock_gettime	466	#ifdef coro_clock_gettime
403	struct timespec ts;	467	struct timespec ts;
404		468
405	ts.tv_sec = ts.tv_nsec = 0;	469	ts.tv_sec = ts.tv_nsec = 0;
…		…
417	time_real [0] = tv [0];	481	time_real [0] = tv [0];
418	time_real [1] = tv [1] * 1000;	482	time_real [1] = tv [1] * 1000;
419	#endif	483	#endif
420	}	484	}
421		485
422	ECB_INLINE void	486	ecb_inline void
423	coro_times_add (struct coro *c)	487	coro_times_add (struct coro *c)
424	{	488	{
425	c->t_real [1] += time_real [1];	489	c->t_real [1] += time_real [1];
426	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }	490	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
427	c->t_real [0] += time_real [0];	491	c->t_real [0] += time_real [0];
…		…
429	c->t_cpu [1] += time_cpu [1];	493	c->t_cpu [1] += time_cpu [1];
430	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }	494	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
431	c->t_cpu [0] += time_cpu [0];	495	c->t_cpu [0] += time_cpu [0];
432	}	496	}
433		497
434	ECB_INLINE void	498	ecb_inline void
435	coro_times_sub (struct coro *c)	499	coro_times_sub (struct coro *c)
436	{	500	{
437	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }	501	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
438	c->t_real [1] -= time_real [1];	502	c->t_real [1] -= time_real [1];
439	c->t_real [0] -= time_real [0];	503	c->t_real [0] -= time_real [0];
…		…
460	: 0)	524	: 0)
461		525
462	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)	526	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
463	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)	527	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
464		528
465	ECB_INLINE MAGIC *	529	ecb_inline MAGIC *
466	SvSTATEhv_p (pTHX_ SV *coro)	530	SvSTATEhv_p (pTHX_ SV *coro)
467	{	531	{
468	MAGIC *mg;	532	MAGIC *mg;
469		533
470	if (ecb_expect_true (	534	if (ecb_expect_true (
…		…
475	return mg;	539	return mg;
476		540
477	return 0;	541	return 0;
478	}	542	}
479		543
480	ECB_INLINE struct coro *	544	ecb_inline struct coro *
481	SvSTATE_ (pTHX_ SV *coro)	545	SvSTATE_ (pTHX_ SV *coro_sv)
482	{	546	{
483	MAGIC *mg;	547	MAGIC *mg;
484		548
485	if (SvROK (coro))	549	if (SvROK (coro_sv))
486	coro = SvRV (coro);	550	coro_sv = SvRV (coro_sv);
487		551
488	mg = SvSTATEhv_p (aTHX_ coro);	552	mg = SvSTATEhv_p (aTHX_ coro_sv);
489	if (!mg)	553	if (!mg)
490	croak ("Coro::State object required");	554	croak ("Coro::State object required");
491		555
492	return (struct coro *)mg->mg_ptr;	556	return (struct coro *)mg->mg_ptr;
493	}	557	}
…		…
499	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))	563	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
500		564
501	/*****************************************************************************/	565	/*****************************************************************************/
502	/* padlist management and caching */	566	/* padlist management and caching */
503		567
504	ECB_INLINE AV *	568	ecb_inline PADLIST *
505	coro_derive_padlist (pTHX_ CV *cv)	569	coro_derive_padlist (pTHX_ CV *cv)
506	{	570	{
507	AV *padlist = CvPADLIST (cv);	571	PADLIST *padlist = CvPADLIST (cv);
508	AV *newpadlist, *newpad;	572	PADLIST *newpadlist;
		573	PADNAMELIST *padnames;
		574	PAD *newpad;
		575	PADOFFSET off = PadlistMAX (padlist) + 1;
509		576
510	newpadlist = newAV ();	577	#if NEWPADAPI
		578
		579	/* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
		580	/* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
		581	while (!PadlistARRAY (padlist)[off - 1])
		582	--off;
		583
		584	Perl_pad_push (aTHX_ padlist, off);
		585
		586	newpad = PadlistARRAY (padlist)[off];
		587	PadlistARRAY (padlist)[off] = 0;
		588
		589	#else
		590
		591	#if PERL_VERSION_ATLEAST (5,10,0)
		592	Perl_pad_push (aTHX_ padlist, off);
		593	#else
		594	Perl_pad_push (aTHX_ padlist, off, 1);
		595	#endif
		596
		597	newpad = PadlistARRAY (padlist)[off];
		598	PadlistMAX (padlist) = off - 1;
		599
		600	#endif
		601
		602	newPADLIST (newpadlist);
		603	#if !PERL_VERSION_ATLEAST(5,15,3)
		604	/* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
511	AvREAL_off (newpadlist);	605	AvREAL_off (newpadlist);
512	#if PERL_VERSION_ATLEAST (5,10,0)
513	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
514	#else
515	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
516	#endif	606	#endif
517	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
518	--AvFILLp (padlist);
519		607
520	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));	608	/* Already extended to 2 elements by newPADLIST. */
521	av_store (newpadlist, 1, (SV *)newpad);	609	PadlistMAX (newpadlist) = 1;
		610
		611	padnames = PadlistNAMES (padlist);
		612	++PadnamelistREFCNT (padnames);
		613	PadlistNAMES (newpadlist) = padnames;
		614
		615	PadlistARRAY (newpadlist)[1] = newpad;
522		616
523	return newpadlist;	617	return newpadlist;
524	}	618	}
525		619
526	ECB_INLINE void	620	ecb_inline void
527	free_padlist (pTHX_ AV *padlist)	621	free_padlist (pTHX_ PADLIST *padlist)
528	{	622	{
529	/* may be during global destruction */	623	/* may be during global destruction */
530	if (!IN_DESTRUCT)	624	if (!IN_DESTRUCT)
531	{	625	{
532	I32 i = AvFILLp (padlist);	626	I32 i = PadlistMAX (padlist);
533		627
534	while (i > 0) /* special-case index 0 */	628	while (i > 0) /* special-case index 0 */
535	{	629	{
536	/* we try to be extra-careful here */	630	/* we try to be extra-careful here */
537	AV *av = (AV *)AvARRAY (padlist)[i--];	631	PAD *pad = PadlistARRAY (padlist)[i--];
538	I32 j = AvFILLp (av);
539		632
		633	if (pad)
		634	{
		635	I32 j = PadMAX (pad);
		636
540	while (j >= 0)	637	while (j >= 0)
541	SvREFCNT_dec (AvARRAY (av)[j--]);	638	SvREFCNT_dec (PadARRAY (pad)[j--]);
542		639
543	AvFILLp (av) = -1;	640	PadMAX (pad) = -1;
544	SvREFCNT_dec (av);	641	SvREFCNT_dec (pad);
		642	}
545	}	643	}
546		644
547	SvREFCNT_dec (AvARRAY (padlist)[0]);	645	PadnamelistREFCNT_dec (PadlistNAMES (padlist));
548		646
		647	#if NEWPADAPI
		648	Safefree (PadlistARRAY (padlist));
		649	Safefree (padlist);
		650	#else
549	AvFILLp (padlist) = -1;	651	AvFILLp (padlist) = -1;
		652	AvREAL_off (padlist);
550	SvREFCNT_dec ((SV*)padlist);	653	SvREFCNT_dec ((SV*)padlist);
		654	#endif
551	}	655	}
552	}	656	}
553		657
554	static int	658	static int
555	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	659	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
556	{	660	{
557	AV *padlist;	661	PADLIST *padlist;
558	AV *av = (AV *)mg->mg_obj;	662	PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
		663	size_t len = *(size_t *)mg->mg_ptr;
559		664
560	/* perl manages to free our internal AV and _then_ call us */	665	/* perl manages to free our internal AV and _then_ call us */
561	if (IN_DESTRUCT)	666	if (IN_DESTRUCT)
562	return 0;	667	return 0;
563		668
564	/* casting is fun. */	669	while (len--)
565	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
566	free_padlist (aTHX_ padlist);	670	free_padlist (aTHX_ padlists[len]);
567
568	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
569		671
570	return 0;	672	return 0;
571	}	673	}
572		674
573	static MGVTBL coro_cv_vtbl = {	675	static MGVTBL coro_cv_vtbl = {
574	0, 0, 0, 0,	676	0, 0, 0, 0,
575	coro_cv_free	677	coro_cv_free
576	};	678	};
577		679
578	/* the next two functions merely cache the padlists */	680	/* the next two functions merely cache the padlists */
579	ECB_INLINE void	681	ecb_inline void
580	get_padlist (pTHX_ CV *cv)	682	get_padlist (pTHX_ CV *cv)
581	{	683	{
582	MAGIC *mg = CORO_MAGIC_cv (cv);	684	MAGIC *mg = CORO_MAGIC_cv (cv);
583	AV *av;	685	size_t *lenp;
584		686
585	if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	687	if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
586	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	688	CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
587	else	689	else
588	{	690	{
589	#if CORO_PREFER_PERL_FUNCTIONS	691	#if CORO_PREFER_PERL_FUNCTIONS
590	/* this is probably cleaner? but also slower! */	692	/* this is probably cleaner? but also slower! */
591	/* in practise, it seems to be less stable */	693	/* in practise, it seems to be less stable */
…		…
597	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);	699	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
598	#endif	700	#endif
599	}	701	}
600	}	702	}
601		703
602	ECB_INLINE void	704	ecb_inline void
603	put_padlist (pTHX_ CV *cv)	705	put_padlist (pTHX_ CV *cv)
604	{	706	{
605	MAGIC *mg = CORO_MAGIC_cv (cv);	707	MAGIC *mg = CORO_MAGIC_cv (cv);
606	AV *av;
607		708
608	if (ecb_expect_false (!mg))	709	if (ecb_expect_false (!mg))
		710	{
609	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	711	mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
		712	Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
		713	mg->mg_len = 1; /* so mg_free frees mg_ptr */
		714	}
		715	else
		716	Renew (mg->mg_ptr,
		717	sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
		718	char);
610		719
611	av = (AV *)mg->mg_obj;	720	((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
612
613	if (ecb_expect_false (AvFILLp (av) >= AvMAX (av)))
614	av_extend (av, AvFILLp (av) + 1);
615
616	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
617	}	721	}
618		722
619	/** load & save, init *******************************************************/	723	/** load & save, init *******************************************************/
620		724
		725	ecb_inline void
		726	swap_sv (SV *a, SV *b)
		727	{
		728	const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
		729	SV tmp;
		730
		731	/* swap sv_any */
		732	SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
		733
		734	/* swap sv_flags */
		735	SvFLAGS (&tmp) = SvFLAGS (a);
		736	SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
		737	SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
		738
		739	#if PERL_VERSION_ATLEAST (5,10,0)
		740	/* perl 5.10 and later complicates this _quite_ a bit, but it also
		741	* is much faster, so no quarrels here. alternatively, we could
		742	* sv_upgrade to avoid this.
		743	*/
		744	{
		745	/* swap sv_u */
		746	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
		747
		748	/* if SvANY points to the head, we need to adjust the pointers,
		749	* as the pointer for a still points to b, and maybe vice versa.
		750	*/
		751	U32 svany_in_head_set = (1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV);
		752	#if NVSIZE <= IVSIZE && PERL_VERSION_ATLEAST(5,22,0)
		753	svany_in_head_set |= 1 << SVt_NV;
		754	#endif
		755
		756	#define svany_in_head(type) (svany_in_head_set & (1 << (type)))
		757
		758	if (svany_in_head (SvTYPE (a)))
		759	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
		760
		761	if (svany_in_head (SvTYPE (b)))
		762	SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
		763	}
		764	#endif
		765	}
		766
621	/* swap sv heads, at least logically */	767	/* swap sv heads, at least logically */
622	static void	768	static void
623	swap_svs (pTHX_ Coro__State c)	769	swap_svs_enter (pTHX_ Coro__State c)
624	{	770	{
625	int i;	771	int i;
626		772
627	for (i = 0; i <= AvFILLp (c->swap_sv); )	773	for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
628	{	774	swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
629	SV *a = AvARRAY (c->swap_sv)[i++];
630	SV *b = AvARRAY (c->swap_sv)[i++];
631
632	const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
633	SV tmp;
634
635	/* swap sv_any */
636	SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
637
638	/* swap sv_flags */
639	SvFLAGS (&tmp) = SvFLAGS (a);
640	SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
641	SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
642
643	#if PERL_VERSION_ATLEAST (5,10,0)
644	/* perl 5.10 complicates this _quite_ a bit, but it also is
645	* much faster, so no quarrels here. alternatively, we could
646	* sv_upgrade to avoid this.
647	*/
648	{
649	/* swap sv_u */
650	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
651
652	/* if SvANY points to the head, we need to adjust the pointers,
653	* as the pointer for a still points to b, and maybe vice versa.
654	*/
655	#define svany_in_head(type) \
656	(((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
657
658	if (svany_in_head (SvTYPE (a)))
659	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
660
661	if (svany_in_head (SvTYPE (b)))
662	SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
663	}
664	#endif
665	}
666	}	775	}
667		776
		777	static void
		778	swap_svs_leave (pTHX_ Coro__State c)
		779	{
		780	int i;
		781
		782	for (i = AvFILLp (c->swap_sv) - 1; i >= 0; i -= 2)
		783	swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
		784	}
		785
668	#define SWAP_SVS(coro) \	786	#define SWAP_SVS_ENTER(coro) \
669	if (ecb_expect_false ((coro)->swap_sv)) \	787	if (ecb_expect_false ((coro)->swap_sv)) \
670	swap_svs (aTHX_ (coro))	788	swap_svs_enter (aTHX_ (coro))
		789
		790	#define SWAP_SVS_LEAVE(coro) \
		791	if (ecb_expect_false ((coro)->swap_sv)) \
		792	swap_svs_leave (aTHX_ (coro))
671		793
672	static void	794	static void
673	on_enterleave_call (pTHX_ SV *cb);	795	on_enterleave_call (pTHX_ SV *cb);
674		796
675	static void	797	static void
…		…
678	perl_slots *slot = c->slot;	800	perl_slots *slot = c->slot;
679	c->slot = 0;	801	c->slot = 0;
680		802
681	PL_mainstack = c->mainstack;	803	PL_mainstack = c->mainstack;
682		804
683	GvSV (PL_defgv) = slot->defsv;	805	#if CORO_JIT
684	GvAV (PL_defgv) = slot->defav;	806	load_perl_slots (slot);
685	GvSV (PL_errgv) = slot->errsv;	807	#else
686	GvSV (irsgv) = slot->irsgv;
687	GvHV (PL_hintgv) = slot->hinthv;
688
689	#define VAR(name,type) PL_ ## name = slot->name;	808	#define VARx(name,expr,type) expr = slot->name;
690	# include "state.h"	809	#include "state.h"
691	#undef VAR	810	#endif
692		811
693	{	812	{
694	dSP;	813	dSP;
695		814
696	CV *cv;	815	CV *cv;
…		…
698	/* now do the ugly restore mess */	817	/* now do the ugly restore mess */
699	while (ecb_expect_true (cv = (CV *)POPs))	818	while (ecb_expect_true (cv = (CV *)POPs))
700	{	819	{
701	put_padlist (aTHX_ cv); /* mark this padlist as available */	820	put_padlist (aTHX_ cv); /* mark this padlist as available */
702	CvDEPTH (cv) = PTR2IV (POPs);	821	CvDEPTH (cv) = PTR2IV (POPs);
703	CvPADLIST (cv) = (AV *)POPs;	822	CvPADLIST (cv) = (PADLIST *)POPs;
704	}	823	}
705		824
706	PUTBACK;	825	PUTBACK;
707	}	826	}
708		827
…		…
723		842
724	for (i = 0; i <= AvFILLp (c->on_enter); ++i)	843	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
725	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);	844	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
726	}	845	}
727		846
		847	if (ecb_expect_false (c->on_enter_xs))
		848	{
		849	int i;
		850
		851	for (i = 0; i <= AvFILLp (c->on_enter_xs); i += 2)
		852	((coro_enterleave_hook)AvARRAY (c->on_enter_xs)[i]) (aTHX_ AvARRAY (c->on_enter_xs)[i + 1]);
		853	}
		854
728	SWAP_SVS (c);	855	SWAP_SVS_ENTER (c);
729	}	856	}
730		857
731	static void	858	static void
732	save_perl (pTHX_ Coro__State c)	859	save_perl (pTHX_ Coro__State c)
733	{	860	{
734	SWAP_SVS (c);	861	SWAP_SVS_LEAVE (c);
		862
		863	if (ecb_expect_false (c->on_leave_xs))
		864	{
		865	int i;
		866
		867	for (i = AvFILLp (c->on_leave_xs) - 1; i >= 0; i -= 2)
		868	((coro_enterleave_hook)AvARRAY (c->on_leave_xs)[i]) (aTHX_ AvARRAY (c->on_leave_xs)[i + 1]);
		869	}
735		870
736	if (ecb_expect_false (c->on_leave))	871	if (ecb_expect_false (c->on_leave))
737	{	872	{
738	int i;	873	int i;
739		874
…		…
798		933
799	PUTBACK;	934	PUTBACK;
800	}	935	}
801		936
802	/* allocate some space on the context stack for our purposes */	937	/* allocate some space on the context stack for our purposes */
803	if (ecb_expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max))	938	if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
804	{	939	{
805	unsigned int i;	940	unsigned int i;
806		941
807	for (i = 0; i < SLOT_COUNT; ++i)	942	for (i = 0; i < SLOT_COUNT; ++i)
808	CXINC;	943	CXINC;
…		…
813	c->mainstack = PL_mainstack;	948	c->mainstack = PL_mainstack;
814		949
815	{	950	{
816	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	951	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
817		952
818	slot->defav = GvAV (PL_defgv);	953	#if CORO_JIT
819	slot->defsv = DEFSV;	954	save_perl_slots (slot);
820	slot->errsv = ERRSV;	955	#else
821	slot->irsgv = GvSV (irsgv);
822	slot->hinthv = GvHV (PL_hintgv);
823
824	#define VAR(name,type) slot->name = PL_ ## name;	956	#define VARx(name,expr,type) slot->name = expr;
825	# include "state.h"	957	#include "state.h"
826	#undef VAR	958	#endif
827	}	959	}
828	}	960	}
829		961
830	/*	962	/*
831	* allocate various perl stacks. This is almost an exact copy	963	* allocate various perl stacks. This is almost an exact copy
…		…
862	#endif	994	#endif
863		995
864	New(54,PL_scopestack,8,I32);	996	New(54,PL_scopestack,8,I32);
865	PL_scopestack_ix = 0;	997	PL_scopestack_ix = 0;
866	PL_scopestack_max = 8;	998	PL_scopestack_max = 8;
		999	#if HAS_SCOPESTACK_NAME
		1000	New(54,PL_scopestack_name,8,const char*);
		1001	#endif
867		1002
868	New(54,PL_savestack,24,ANY);	1003	New(54,PL_savestack,24,ANY);
869	PL_savestack_ix = 0;	1004	PL_savestack_ix = 0;
870	PL_savestack_max = 24;	1005	PL_savestack_max = 24;
		1006	#if PERL_VERSION_ATLEAST (5,24,0)
		1007	/* perl 5.24 moves SS_MAXPUSH optimisation from */
		1008	/* the header macros to PL_savestack_max */
		1009	PL_savestack_max -= SS_MAXPUSH;
		1010	#endif
871		1011
872	#if !PERL_VERSION_ATLEAST (5,10,0)	1012	#if !PERL_VERSION_ATLEAST (5,10,0)
873	New(54,PL_retstack,4,OP*);	1013	New(54,PL_retstack,4,OP*);
874	PL_retstack_ix = 0;	1014	PL_retstack_ix = 0;
875	PL_retstack_max = 4;	1015	PL_retstack_max = 4;
…		…
899	}	1039	}
900		1040
901	Safefree (PL_tmps_stack);	1041	Safefree (PL_tmps_stack);
902	Safefree (PL_markstack);	1042	Safefree (PL_markstack);
903	Safefree (PL_scopestack);	1043	Safefree (PL_scopestack);
		1044	#if HAS_SCOPESTACK_NAME
		1045	Safefree (PL_scopestack_name);
		1046	#endif
904	Safefree (PL_savestack);	1047	Safefree (PL_savestack);
905	#if !PERL_VERSION_ATLEAST (5,10,0)	1048	#if !PERL_VERSION_ATLEAST (5,10,0)
906	Safefree (PL_retstack);	1049	Safefree (PL_retstack);
907	#endif	1050	#endif
908	}	1051	}
…		…
938	}	1081	}
939		1082
940	return rss;	1083	return rss;
941	}	1084	}
942		1085
943	/** coroutine stack handling ************************************************/	1086	/** provide custom get/set/clear methods for %SIG elements ******************/
944
945	static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg);
946	static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg);
947	static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg);
948		1087
949	/* apparently < 5.8.8 */	1088	/* apparently < 5.8.8 */
950	#ifndef MgPV_nolen_const	1089	#ifndef MgPV_nolen_const
951	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \	1090	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
952	SvPV_nolen((SV*)((mg)->mg_ptr)) : \	1091	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
953	(const char*)(mg)->mg_ptr)	1092	(const char*)(mg)->mg_ptr)
954	#endif	1093	#endif
		1094
		1095	/* this will be a patched copy of PL_vtbl_sigelem */
		1096	static MGVTBL coro_sigelem_vtbl;
		1097
		1098	static int ecb_cold
		1099	coro_sig_copy (pTHX_ SV *sv, MAGIC *mg, SV *nsv, const char *name, I32 namlen)
		1100	{
		1101	char *key = SvPV_nolen ((SV *)name);
		1102
		1103	/* do what mg_copy normally does */
		1104	sv_magic (nsv, mg->mg_obj, PERL_MAGIC_sigelem, name, namlen);
		1105	assert (mg_find (nsv, PERL_MAGIC_sigelem)->mg_virtual == &PL_vtbl_sigelem);
		1106
		1107	/* patch sigelem vtbl, but only for __WARN__ and __DIE__ */
		1108	if (*key == '_'
		1109	&& (strEQ (key, "__DIE__")
		1110	|| strEQ (key, "__WARN__")))
		1111	mg_find (nsv, PERL_MAGIC_sigelem)->mg_virtual = &coro_sigelem_vtbl;
		1112
		1113	return 1;
		1114	}
		1115
		1116	/* perl does not have a %SIG vtbl, we provide one so we can override */
		1117	/* the magic vtbl for the __DIE__ and __WARN__ members */
		1118	static const MGVTBL coro_sig_vtbl = {
		1119	0, 0, 0, 0, 0,
		1120	coro_sig_copy
		1121	};
955		1122
956	/*	1123	/*
957	* This overrides the default magic get method of %SIG elements.	1124	* This overrides the default magic get method of %SIG elements.
958	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	1125	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
959	* and instead of trying to save and restore the hash elements (extremely slow),	1126	* and instead of trying to save and restore the hash elements (extremely slow),
…		…
961	*/	1128	*/
962	static int ecb_cold	1129	static int ecb_cold
963	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	1130	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
964	{	1131	{
965	const char *s = MgPV_nolen_const (mg);	1132	const char *s = MgPV_nolen_const (mg);
		1133	/* the key must be either __DIE__ or __WARN__ here */
		1134	SV **svp = s[2] == 'D' ? &PL_diehook : &PL_warnhook;
966		1135
967	if (*s == '_')	1136	SV *ssv;
968	{
969	SV **svp = 0;
970		1137
971	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
972	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
973
974	if (svp)	1138	if (!*svp)
975	{	1139	ssv = &PL_sv_undef;
976	sv_setsv (sv, *svp ? *svp : &PL_sv_undef);	1140	else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
977	return 0;	1141	ssv = sv_2mortal (newRV_inc (*svp));
978	}	1142	else
979	}	1143	ssv = *svp;
980		1144
981	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;	1145	sv_setsv (sv, ssv);
		1146	return 0;
982	}	1147	}
983		1148
984	static int ecb_cold	1149	static int ecb_cold
985	coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)	1150	coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
986	{	1151	{
987	const char *s = MgPV_nolen_const (mg);	1152	const char *s = MgPV_nolen_const (mg);
		1153	/* the key must be either __DIE__ or __WARN__ here */
		1154	SV **svp = s[2] == 'D' ? &PL_diehook : &PL_warnhook;
988		1155
989	if (*s == '_')
990	{
991	SV **svp = 0;
992
993	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
994	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
995
996	if (svp)
997	{
998	SV *old = *svp;	1156	SV *old = *svp;
999	*svp = 0;	1157	*svp = 0;
1000	SvREFCNT_dec (old);	1158	SvREFCNT_dec (old);
1001	return 0;	1159	return 0;
1002	}
1003	}
1004
1005	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
1006	}	1160	}
1007		1161
1008	static int ecb_cold	1162	static int ecb_cold
1009	coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)	1163	coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
1010	{	1164	{
1011	const char *s = MgPV_nolen_const (mg);	1165	const char *s = MgPV_nolen_const (mg);
		1166	/* the key must be either __DIE__ or __WARN__ here */
		1167	SV **svp = s[2] == 'D' ? &PL_diehook : &PL_warnhook;
1012		1168
1013	if (*s == '_')
1014	{
1015	SV **svp = 0;
1016
1017	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
1018	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
1019
1020	if (svp)
1021	{
1022	SV *old = *svp;	1169	SV *old = *svp;
1023	*svp = SvOK (sv) ? newSVsv (sv) : 0;	1170	*svp = SvOK (sv) ? newSVsv (sv) : 0;
1024	SvREFCNT_dec (old);	1171	SvREFCNT_dec (old);
1025	return 0;	1172	return 0;
1026	}
1027	}
1028
1029	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
1030	}	1173	}
1031		1174
1032	static void	1175	static void
1033	prepare_nop (pTHX_ struct coro_transfer_args *ta)	1176	prepare_nop (pTHX_ struct coro_transfer_args *ta)
1034	{	1177	{
…		…
1045	static int	1188	static int
1046	slf_check_repeat (pTHX_ struct CoroSLF *frame)	1189	slf_check_repeat (pTHX_ struct CoroSLF *frame)
1047	{	1190	{
1048	return 1;	1191	return 1;
1049	}	1192	}
		1193
		1194	/** coroutine stack handling ************************************************/
1050		1195
1051	static UNOP init_perl_op;	1196	static UNOP init_perl_op;
1052		1197
1053	ecb_noinline static void /* noinline to keep it out of the transfer fast path */	1198	ecb_noinline static void /* noinline to keep it out of the transfer fast path */
1054	init_perl (pTHX_ struct coro *coro)	1199	init_perl (pTHX_ struct coro *coro)
…		…
1075	PL_hints = 0;	1220	PL_hints = 0;
1076		1221
1077	/* recreate the die/warn hooks */	1222	/* recreate the die/warn hooks */
1078	PL_diehook = SvREFCNT_inc (rv_diehook);	1223	PL_diehook = SvREFCNT_inc (rv_diehook);
1079	PL_warnhook = SvREFCNT_inc (rv_warnhook);	1224	PL_warnhook = SvREFCNT_inc (rv_warnhook);
1080		1225
1081	GvSV (PL_defgv) = newSV (0);	1226	GvSV (PL_defgv) = newSV (0);
1082	GvAV (PL_defgv) = coro->args; coro->args = 0;	1227	GvAV (PL_defgv) = coro->args; coro->args = 0;
1083	GvSV (PL_errgv) = newSV (0);	1228	GvSV (PL_errgv) = newSV (0);
1084	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	1229	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1085	GvHV (PL_hintgv) = 0;	1230	GvHV (PL_hintgv) = newHV ();
		1231	#if PERL_VERSION_ATLEAST (5,10,0)
		1232	hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints);
		1233	#endif
1086	PL_rs = newSVsv (GvSV (irsgv));	1234	PL_rs = newSVsv (GvSV (irsgv));
1087	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	1235	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
1088		1236
1089	{	1237	{
1090	dSP;	1238	dSP;
…		…
1094	myop.op_next = Nullop;	1242	myop.op_next = Nullop;
1095	myop.op_type = OP_ENTERSUB;	1243	myop.op_type = OP_ENTERSUB;
1096	myop.op_flags = OPf_WANT_VOID;	1244	myop.op_flags = OPf_WANT_VOID;
1097		1245
1098	PUSHMARK (SP);	1246	PUSHMARK (SP);
1099	PUSHs ((SV *)coro->startcv);	1247	XPUSHs ((SV *)coro->startcv);
1100	PUTBACK;	1248	PUTBACK;
1101	PL_op = (OP *)&myop;	1249	PL_op = (OP *)&myop;
1102	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	1250	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
1103	}	1251	}
1104		1252
…		…
1118	PL_op = (OP *)&init_perl_op;	1266	PL_op = (OP *)&init_perl_op;
1119		1267
1120	/* copy throw, in case it was set before init_perl */	1268	/* copy throw, in case it was set before init_perl */
1121	CORO_THROW = coro->except;	1269	CORO_THROW = coro->except;
1122		1270
1123	SWAP_SVS (coro);	1271	SWAP_SVS_ENTER (coro);
1124		1272
1125	if (ecb_expect_false (enable_times))	1273	if (ecb_expect_false (enable_times))
1126	{	1274	{
1127	coro_times_update ();	1275	coro_times_update ();
1128	coro_times_sub (coro);	1276	coro_times_sub (coro);
…		…
1161		1309
1162	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));	1310	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1163		1311
1164	save_perl (aTHX_ current);	1312	save_perl (aTHX_ current);
1165		1313
1166	/* this will cause transfer_check to croak on block*/	1314	/* this will cause transfer_check to croak on block */
1167	SvRV_set (coro_current, (SV *)coro->hv);	1315	SvRV_set (coro_current, (SV *)coro->hv);
1168		1316
1169	load_perl (aTHX_ coro);	1317	load_perl (aTHX_ coro);
1170		1318
		1319	/* restore swapped sv's */
		1320	SWAP_SVS_LEAVE (coro);
		1321
1171	coro_unwind_stacks (aTHX);	1322	coro_unwind_stacks (aTHX);
1172		1323
1173	/* restore swapped sv's */
1174	SWAP_SVS (coro);
1175
1176	coro_destruct_stacks (aTHX);	1324	coro_destruct_stacks (aTHX);
1177		1325
1178	// now save some sv's to be free'd later	1326	/* now save some sv's to be free'd later */
1179	svf [0] = GvSV (PL_defgv);	1327	svf [0] = GvSV (PL_defgv);
1180	svf [1] = (SV *)GvAV (PL_defgv);	1328	svf [1] = (SV *)GvAV (PL_defgv);
1181	svf [2] = GvSV (PL_errgv);	1329	svf [2] = GvSV (PL_errgv);
1182	svf [3] = (SV *)PL_defoutgv;	1330	svf [3] = (SV *)PL_defoutgv;
1183	svf [4] = PL_rs;	1331	svf [4] = PL_rs;
…		…
1200		1348
1201	SvREFCNT_dec (coro->saved_deffh);	1349	SvREFCNT_dec (coro->saved_deffh);
1202	SvREFCNT_dec (coro->rouse_cb);	1350	SvREFCNT_dec (coro->rouse_cb);
1203	SvREFCNT_dec (coro->invoke_cb);	1351	SvREFCNT_dec (coro->invoke_cb);
1204	SvREFCNT_dec (coro->invoke_av);	1352	SvREFCNT_dec (coro->invoke_av);
		1353	SvREFCNT_dec (coro->on_enter_xs);
		1354	SvREFCNT_dec (coro->on_leave_xs);
1205	}	1355	}
1206	}	1356	}
1207		1357
1208	ECB_INLINE void	1358	ecb_inline void
1209	free_coro_mortal (pTHX)	1359	free_coro_mortal (pTHX)
1210	{	1360	{
1211	if (ecb_expect_true (coro_mortal))	1361	if (ecb_expect_true (coro_mortal))
1212	{	1362	{
1213	SvREFCNT_dec ((SV *)coro_mortal);	1363	SvREFCNT_dec ((SV *)coro_mortal);
…		…
1250	av_push (av, SvREFCNT_inc_NN (*bot++));	1400	av_push (av, SvREFCNT_inc_NN (*bot++));
1251		1401
1252	PL_runops = RUNOPS_DEFAULT;	1402	PL_runops = RUNOPS_DEFAULT;
1253	ENTER;	1403	ENTER;
1254	SAVETMPS;	1404	SAVETMPS;
		1405	PUSHMARK (SP);
1255	EXTEND (SP, 3);	1406	EXTEND (SP, 3);
1256	PUSHMARK (SP);
1257	PUSHs (&PL_sv_no);	1407	PUSHs (&PL_sv_no);
1258	PUSHs (fullname);	1408	PUSHs (fullname);
1259	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	1409	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
1260	PUTBACK;	1410	PUTBACK;
1261	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1411	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
…		…
1272		1422
1273	if (PL_curcop != &PL_compiling)	1423	if (PL_curcop != &PL_compiling)
1274	{	1424	{
1275	SV **cb;	1425	SV **cb;
1276		1426
1277	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)	1427	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0)
1278	{	1428	{
1279	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1429	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1280		1430
1281	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1431	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1282	{	1432	{
…		…
1288	gv_efullname3 (fullname, gv, 0);	1438	gv_efullname3 (fullname, gv, 0);
1289		1439
1290	PL_runops = RUNOPS_DEFAULT;	1440	PL_runops = RUNOPS_DEFAULT;
1291	ENTER;	1441	ENTER;
1292	SAVETMPS;	1442	SAVETMPS;
		1443	PUSHMARK (SP);
1293	EXTEND (SP, 3);	1444	EXTEND (SP, 3);
1294	PUSHMARK (SP);
1295	PUSHs (&PL_sv_yes);	1445	PUSHs (&PL_sv_yes);
1296	PUSHs (fullname);	1446	PUSHs (fullname);
1297	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1447	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc (SUB_ARGARRAY)) : &PL_sv_undef);
1298	PUTBACK;	1448	PUTBACK;
1299	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1449	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1300	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	1450	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1301	SPAGAIN;	1451	SPAGAIN;
1302	FREETMPS;	1452	FREETMPS;
…		…
1312	dSP;	1462	dSP;
1313		1463
1314	PL_runops = RUNOPS_DEFAULT;	1464	PL_runops = RUNOPS_DEFAULT;
1315	ENTER;	1465	ENTER;
1316	SAVETMPS;	1466	SAVETMPS;
1317	EXTEND (SP, 3);
1318	PL_runops = RUNOPS_DEFAULT;
1319	PUSHMARK (SP);	1467	PUSHMARK (SP);
		1468	EXTEND (SP, 2);
1320	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));	1469	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
1321	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));	1470	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
1322	PUTBACK;	1471	PUTBACK;
1323	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);	1472	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
1324	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	1473	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
…		…
1372	slf_frame.prepare = slf_prepare_set_stacklevel;	1521	slf_frame.prepare = slf_prepare_set_stacklevel;
1373	slf_frame.check = slf_check_set_stacklevel;	1522	slf_frame.check = slf_check_set_stacklevel;
1374	}	1523	}
1375		1524
1376	/* the tail of transfer: execute stuff we can only do after a transfer */	1525	/* the tail of transfer: execute stuff we can only do after a transfer */
1377	ECB_INLINE void	1526	ecb_inline void
1378	transfer_tail (pTHX)	1527	transfer_tail (pTHX)
1379	{	1528	{
1380	free_coro_mortal (aTHX);	1529	free_coro_mortal (aTHX);
		1530	}
		1531
		1532	/* try to exit the same way perl's main function would do */
		1533	/* we do not bother resetting the environment or other things *7
		1534	/* that are not, uhm, essential */
		1535	/* this obviously also doesn't work when perl is embedded */
		1536	static void ecb_noinline ecb_cold
		1537	perlish_exit (pTHX)
		1538	{
		1539	int exitstatus = perl_destruct (PL_curinterp);
		1540	perl_free (PL_curinterp);
		1541	exit (exitstatus);
1381	}	1542	}
1382		1543
1383	/*	1544	/*
1384	* this is a _very_ stripped down perl interpreter ;)	1545	* this is a _very_ stripped down perl interpreter ;)
1385	*/	1546	*/
…		…
1412	* coro body here, as perl_run destroys these. Likewise, we cannot catch	1573	* coro body here, as perl_run destroys these. Likewise, we cannot catch
1413	* runtime errors here, as this is just a random interpreter, not a thread.	1574	* runtime errors here, as this is just a random interpreter, not a thread.
1414	*/	1575	*/
1415		1576
1416	/*	1577	/*
		1578	* pp_entersub in 5.24 no longer ENTERs, but perl_destruct
		1579	* requires PL_scopestack_ix, so do it here if required.
		1580	*/
		1581	if (!PL_scopestack_ix)
		1582	ENTER;
		1583
		1584	/*
1417	* If perl-run returns we assume exit() was being called or the coro	1585	* If perl-run returns we assume exit() was being called or the coro
1418	* fell off the end, which seems to be the only valid (non-bug)	1586	* fell off the end, which seems to be the only valid (non-bug)
1419	* reason for perl_run to return. We try to exit by jumping to the	1587	* reason for perl_run to return. We try to mimic whatever perl is normally
1420	* bootstrap-time "top" top_env, as we cannot restore the "main"	1588	* doing in that case. YMMV.
1421	* coroutine as Coro has no such concept.
1422	* This actually isn't valid with the pthread backend, but OSes requiring
1423	* that backend are too broken to do it in a standards-compliant way.
1424	*/	1589	*/
1425	PL_top_env = main_top_env;	1590	perlish_exit (aTHX);
1426	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1427	}	1591	}
1428	}	1592	}
1429		1593
1430	static coro_cctx *	1594	static coro_cctx *
1431	cctx_new ()	1595	cctx_new (void)
1432	{	1596	{
1433	coro_cctx *cctx;	1597	coro_cctx *cctx;
1434		1598
1435	++cctx_count;	1599	++cctx_count;
1436	New (0, cctx, 1, coro_cctx);	1600	New (0, cctx, 1, coro_cctx);
…		…
1442	return cctx;	1606	return cctx;
1443	}	1607	}
1444		1608
1445	/* create a new cctx only suitable as source */	1609	/* create a new cctx only suitable as source */
1446	static coro_cctx *	1610	static coro_cctx *
1447	cctx_new_empty ()	1611	cctx_new_empty (void)
1448	{	1612	{
1449	coro_cctx *cctx = cctx_new ();	1613	coro_cctx *cctx = cctx_new ();
1450		1614
1451	cctx->sptr = 0;	1615	cctx->stack.sptr = 0;
1452	coro_create (&cctx->cctx, 0, 0, 0, 0);	1616	coro_create (&cctx->cctx, 0, 0, 0, 0);
1453		1617
1454	return cctx;	1618	return cctx;
1455	}	1619	}
1456		1620
1457	/* create a new cctx suitable as destination/running a perl interpreter */	1621	/* create a new cctx suitable as destination/running a perl interpreter */
1458	static coro_cctx *	1622	static coro_cctx *
1459	cctx_new_run ()	1623	cctx_new_run (void)
1460	{	1624	{
1461	coro_cctx *cctx = cctx_new ();	1625	coro_cctx *cctx = cctx_new ();
1462	void *stack_start;
1463	size_t stack_size;
1464		1626
1465	#if HAVE_MMAP	1627	if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1466	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1467	/* mmap supposedly does allocate-on-write for us */
1468	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1469
1470	if (cctx->sptr != (void *)-1)
1471	{
1472	#if CORO_STACKGUARD
1473	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1474	#endif
1475	stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1476	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1477	cctx->flags |= CC_MAPPED;
1478	}	1628	{
1479	else
1480	#endif
1481	{
1482	cctx->ssize = cctx_stacksize * (long)sizeof (long);
1483	New (0, cctx->sptr, cctx_stacksize, long);
1484
1485	if (!cctx->sptr)
1486	{
1487	perror ("FATAL: unable to allocate stack for coroutine, exiting.");	1629	perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1488	_exit (EXIT_FAILURE);	1630	_exit (EXIT_FAILURE);
1489	}
1490
1491	stack_start = cctx->sptr;
1492	stack_size = cctx->ssize;
1493	}	1631	}
1494		1632
1495	#if CORO_USE_VALGRIND
1496	cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1497	#endif
1498
1499	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);	1633	coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1500		1634
1501	return cctx;	1635	return cctx;
1502	}	1636	}
1503		1637
1504	static void	1638	static void
…		…
1510	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));	1644	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1511		1645
1512	--cctx_count;	1646	--cctx_count;
1513	coro_destroy (&cctx->cctx);	1647	coro_destroy (&cctx->cctx);
1514		1648
1515	/* coro_transfer creates new, empty cctx's */	1649	coro_stack_free (&cctx->stack);
1516	if (cctx->sptr)
1517	{
1518	#if CORO_USE_VALGRIND
1519	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1520	#endif
1521
1522	#if HAVE_MMAP
1523	if (cctx->flags & CC_MAPPED)
1524	munmap (cctx->sptr, cctx->ssize);
1525	else
1526	#endif
1527	Safefree (cctx->sptr);
1528	}
1529		1650
1530	Safefree (cctx);	1651	Safefree (cctx);
1531	}	1652	}
1532		1653
1533	/* wether this cctx should be destructed */	1654	/* wether this cctx should be destructed */
…		…
1552	}	1673	}
1553		1674
1554	static void	1675	static void
1555	cctx_put (coro_cctx *cctx)	1676	cctx_put (coro_cctx *cctx)
1556	{	1677	{
1557	assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));	1678	assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1558		1679
1559	/* free another cctx if overlimit */	1680	/* free another cctx if overlimit */
1560	if (ecb_expect_false (cctx_idle >= cctx_max_idle))	1681	if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1561	{	1682	{
1562	coro_cctx *first = cctx_first;	1683	coro_cctx *first = cctx_first;
…		…
1688	return;	1809	return;
1689		1810
1690	slf_destroy (aTHX_ coro);	1811	slf_destroy (aTHX_ coro);
1691		1812
1692	coro->flags |= CF_ZOMBIE;	1813	coro->flags |= CF_ZOMBIE;
1693		1814
1694	if (coro->flags & CF_READY)	1815	if (coro->flags & CF_READY)
1695	{	1816	{
1696	/* reduce nready, as destroying a ready coro effectively unreadies it */	1817	/* reduce nready, as destroying a ready coro effectively unreadies it */
1697	/* alternative: look through all ready queues and remove the coro */	1818	/* alternative: look through all ready queues and remove the coro */
1698	--coro_nready;	1819	--coro_nready;
…		…
1738		1859
1739	static int ecb_cold	1860	static int ecb_cold
1740	coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)	1861	coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1741	{	1862	{
1742	/* called when perl clones the current process the slow way (windows process emulation) */	1863	/* called when perl clones the current process the slow way (windows process emulation) */
1743	/* WE SIMply nuke the pointers in the copy, causing perl to croak */	1864	/* we simply nuke the pointers in the copy, causing perl to croak */
1744	mg->mg_ptr = 0;	1865	mg->mg_ptr = 0;
1745	mg->mg_virtual = 0;	1866	mg->mg_virtual = 0;
1746		1867
1747	return 0;	1868	return 0;
1748	}	1869	}
…		…
1775	TRANSFER (ta, 1);	1896	TRANSFER (ta, 1);
1776	}	1897	}
1777		1898
1778	/** Coro ********************************************************************/	1899	/** Coro ********************************************************************/
1779		1900
1780	ECB_INLINE void	1901	ecb_inline void
1781	coro_enq (pTHX_ struct coro *coro)	1902	coro_enq (pTHX_ struct coro *coro)
1782	{	1903	{
1783	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];	1904	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1784		1905
1785	SvREFCNT_inc_NN (coro->hv);	1906	SvREFCNT_inc_NN (coro->hv);
…		…
1787	coro->next_ready = 0;	1908	coro->next_ready = 0;
1788	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;	1909	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1789	ready [1] = coro;	1910	ready [1] = coro;
1790	}	1911	}
1791		1912
1792	ECB_INLINE struct coro *	1913	ecb_inline struct coro *
1793	coro_deq (pTHX)	1914	coro_deq (pTHX)
1794	{	1915	{
1795	int prio;	1916	int prio;
1796		1917
1797	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )	1918	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
…		…
1850	{	1971	{
1851	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1972	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1852	}	1973	}
1853		1974
1854	/* expects to own a reference to next->hv */	1975	/* expects to own a reference to next->hv */
1855	ECB_INLINE void	1976	ecb_inline void
1856	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)	1977	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1857	{	1978	{
1858	SV *prev_sv = SvRV (coro_current);	1979	SV *prev_sv = SvRV (coro_current);
1859		1980
1860	ta->prev = SvSTATE_hv (prev_sv);	1981	ta->prev = SvSTATE_hv (prev_sv);
…		…
1894	/* nothing to schedule: call the idle handler */	2015	/* nothing to schedule: call the idle handler */
1895	if (SvROK (sv_idle)	2016	if (SvROK (sv_idle)
1896	&& SvOBJECT (SvRV (sv_idle)))	2017	&& SvOBJECT (SvRV (sv_idle)))
1897	{	2018	{
1898	if (SvRV (sv_idle) == SvRV (coro_current))	2019	if (SvRV (sv_idle) == SvRV (coro_current))
		2020	{
		2021	require_pv ("Carp");
		2022
		2023	{
		2024	dSP;
		2025
		2026	ENTER;
		2027	SAVETMPS;
		2028
		2029	PUSHMARK (SP);
1899	croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");	2030	XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0)));
		2031	PUTBACK;
		2032	call_pv ("Carp::confess", G_VOID | G_DISCARD);
		2033
		2034	FREETMPS;
		2035	LEAVE;
		2036	}
		2037	}
1900		2038
1901	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */	2039	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1902	api_ready (aTHX_ SvRV (sv_idle));	2040	api_ready (aTHX_ SvRV (sv_idle));
1903	--coro_nready;	2041	--coro_nready;
1904	}	2042	}
…		…
1919	}	2057	}
1920	}	2058	}
1921	}	2059	}
1922	}	2060	}
1923		2061
1924	ECB_INLINE void	2062	ecb_inline void
1925	prepare_cede (pTHX_ struct coro_transfer_args *ta)	2063	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1926	{	2064	{
1927	api_ready (aTHX_ coro_current);	2065	api_ready (aTHX_ coro_current);
1928	prepare_schedule (aTHX_ ta);	2066	prepare_schedule (aTHX_ ta);
1929	}	2067	}
1930		2068
1931	ECB_INLINE void	2069	ecb_inline void
1932	prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)	2070	prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1933	{	2071	{
1934	SV *prev = SvRV (coro_current);	2072	SV *prev = SvRV (coro_current);
1935		2073
1936	if (coro_nready)	2074	if (coro_nready)
…		…
2101	{	2239	{
2102	AV *od = coro->on_destroy;	2240	AV *od = coro->on_destroy;
2103		2241
2104	if (!od)	2242	if (!od)
2105	return;	2243	return;
		2244
		2245	coro->on_destroy = 0;
		2246	sv_2mortal ((SV *)od);
2106		2247
2107	while (AvFILLp (od) >= 0)	2248	while (AvFILLp (od) >= 0)
2108	{	2249	{
2109	SV *cb = sv_2mortal (av_pop (od));	2250	SV *cb = sv_2mortal (av_pop (od));
2110		2251
…		…
2131		2272
2132	static void	2273	static void
2133	coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)	2274	coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2134	{	2275	{
2135	AV *av;	2276	AV *av;
2136		2277
2137	if (coro->status)	2278	if (coro->status)
2138	{	2279	{
2139	av = coro->status;	2280	av = coro->status;
2140	av_clear (av);	2281	av_clear (av);
2141	}	2282	}
…		…
2188		2329
2189	coro = SvSTATE (arg [0]);	2330	coro = SvSTATE (arg [0]);
2190	coro_hv = coro->hv;	2331	coro_hv = coro->hv;
2191		2332
2192	coro_set_status (aTHX_ coro, arg + 1, items - 1);	2333	coro_set_status (aTHX_ coro, arg + 1, items - 1);
2193		2334
2194	if (ecb_expect_false (coro->flags & CF_NOCANCEL))	2335	if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2195	{	2336	{
2196	/* coro currently busy cancelling something, so just notify it */	2337	/* coro currently busy cancelling something, so just notify it */
2197	coro->slf_frame.data = (void *)coro;	2338	coro->slf_frame.data = (void *)coro;
2198		2339
…		…
2205	slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);	2346	slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2206	}	2347	}
2207	else	2348	else
2208	{	2349	{
2209	struct coro *self = SvSTATE_current;	2350	struct coro *self = SvSTATE_current;
		2351
		2352	if (!self)
		2353	croak ("Coro::cancel called outside of thread content,");
2210		2354
2211	/* otherwise we cancel directly, purely for speed reasons	2355	/* otherwise we cancel directly, purely for speed reasons
2212	* unfortunately, this requires some magic trickery, as	2356	* unfortunately, this requires some magic trickery, as
2213	* somebody else could cancel us, so we have to fight the cancellation.	2357	* somebody else could cancel us, so we have to fight the cancellation.
2214	* this is ugly, and hopefully fully worth the extra speed.	2358	* this is ugly, and hopefully fully worth the extra speed.
…		…
2247	safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)	2391	safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2248	{	2392	{
2249	if (coro->cctx)	2393	if (coro->cctx)
2250	croak ("coro inside C callback, unable to cancel at this time, caught");	2394	croak ("coro inside C callback, unable to cancel at this time, caught");
2251		2395
2252	if (coro->flags & CF_NEW)	2396	if (coro->flags & (CF_NEW | CF_ZOMBIE))
2253	{	2397	{
2254	coro_set_status (aTHX_ coro, arg, items);	2398	coro_set_status (aTHX_ coro, arg, items);
2255	coro_state_destroy (aTHX_ coro);	2399	coro_state_destroy (aTHX_ coro);
2256	}	2400	}
2257	else	2401	else
…		…
2324	else	2468	else
2325	{	2469	{
2326	av_clear (GvAV (PL_defgv));	2470	av_clear (GvAV (PL_defgv));
2327	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);	2471	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
2328		2472
		2473	if (ecb_expect_false (coro->swap_sv))
		2474	{
		2475	SWAP_SVS_LEAVE (coro);
		2476	SvREFCNT_dec_NN (coro->swap_sv);
		2477	coro->swap_sv = 0;
		2478	}
		2479
2329	coro->prio = 0;	2480	coro->prio = 0;
2330		2481
2331	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2482	if (ecb_expect_false (coro->cctx) && ecb_expect_false (coro->cctx->flags & CC_TRACE))
2332	api_trace (aTHX_ coro_current, 0);	2483	api_trace (aTHX_ coro_current, 0);
2333		2484
2334	frame->prepare = prepare_schedule;	2485	frame->prepare = prepare_schedule;
2335	av_push (av_async_pool, SvREFCNT_inc (hv));	2486	av_push (av_async_pool, SvREFCNT_inc_NN (hv));
2336	}	2487	}
2337	}	2488	}
2338	else	2489	else
2339	{	2490	{
2340	/* first iteration, simply fall through */	2491	/* first iteration, simply fall through */
…		…
2353	static void	2504	static void
2354	coro_rouse_callback (pTHX_ CV *cv)	2505	coro_rouse_callback (pTHX_ CV *cv)
2355	{	2506	{
2356	dXSARGS;	2507	dXSARGS;
2357	SV *data = (SV *)S_GENSUB_ARG;	2508	SV *data = (SV *)S_GENSUB_ARG;
		2509	SV *coro = SvRV (data);
2358		2510
		2511	/* data starts being either undef or a coro, and is replaced by the results when done */
2359	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2512	if (SvTYPE (coro) != SVt_PVAV)
2360	{	2513	{
2361	/* first call, set args */	2514	/* first call, set args */
2362	SV *coro = SvRV (data);
2363	AV *av = newAV ();
2364		2515
2365	SvRV_set (data, (SV *)av);	2516	assert (&ST (0) < &ST (1)); /* ensure the stack is in the order we expect it to be */
		2517	SvRV_set (data, (SV *)av_make (items, &ST (0))); /* av_make copies the SVs */
2366		2518
2367	/* better take a full copy of the arguments */	2519	if (coro != &PL_sv_undef)
2368	while (items--)	2520	{
2369	av_store (av, items, newSVsv (ST (items)));
2370
2371	api_ready (aTHX_ coro);	2521	api_ready (aTHX_ coro);
2372	SvREFCNT_dec (coro);	2522	SvREFCNT_dec_NN (coro);
		2523	}
2373	}	2524	}
2374		2525
2375	XSRETURN_EMPTY;	2526	XSRETURN_EMPTY;
2376	}	2527	}
2377		2528
2378	static int	2529	static int
2379	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)	2530	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2380	{	2531	{
2381	SV *data = (SV *)frame->data;	2532	SV *data = (SV *)frame->data;
2382		2533
2383	if (CORO_THROW)	2534	if (CORO_THROW)
2384	return 0;	2535	return 0;
2385		2536
2386	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2537	if (SvTYPE (SvRV (data)) != SVt_PVAV)
2387	return 1;	2538	return 1;
…		…
2394		2545
2395	EXTEND (SP, AvFILLp (av) + 1);	2546	EXTEND (SP, AvFILLp (av) + 1);
2396	for (i = 0; i <= AvFILLp (av); ++i)	2547	for (i = 0; i <= AvFILLp (av); ++i)
2397	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2548	PUSHs (sv_2mortal (AvARRAY (av)[i]));
2398		2549
2399	/* we have stolen the elements, so set length to zero and free */	2550	/* we have stolen the elements, make it unreal and free */
2400	AvFILLp (av) = -1;	2551	AvREAL_off (av);
2401	av_undef (av);	2552	av_undef (av);
2402		2553
2403	PUTBACK;	2554	PUTBACK;
2404	}	2555	}
2405		2556
…		…
2423	cb = sv_2mortal (coro->rouse_cb);	2574	cb = sv_2mortal (coro->rouse_cb);
2424	coro->rouse_cb = 0;	2575	coro->rouse_cb = 0;
2425	}	2576	}
2426		2577
2427	if (!SvROK (cb)	2578	if (!SvROK (cb)
2428	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2579	|| SvTYPE (SvRV (cb)) != SVt_PVCV
2429	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2580	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2430	croak ("Coro::rouse_wait called with illegal callback argument,");	2581	croak ("Coro::rouse_wait called with illegal callback argument,");
2431		2582
2432	{	2583	{
2433	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */	2584	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2434	SV *data = (SV *)S_GENSUB_ARG;	2585	SV *data = (SV *)S_GENSUB_ARG;
		2586	int data_ready = SvTYPE (SvRV (data)) == SVt_PVAV;
		2587
		2588	/* if there is no data, we need to store the current coro in the reference so we can be woken up */
		2589	if (!data_ready)
		2590	if (SvRV (data) != &PL_sv_undef)
		2591	croak ("Coro::rouse_wait was called on a calback that is already being waited for - only one thread can wait for a rouse callback, caught");
		2592	else
		2593	SvRV_set (data, SvREFCNT_inc_NN (SvRV (coro_current)));
2435		2594
2436	frame->data = (void *)data;	2595	frame->data = (void *)data;
2437	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2596	frame->prepare = data_ready ? prepare_nop : prepare_schedule;
2438	frame->check = slf_check_rouse_wait;	2597	frame->check = slf_check_rouse_wait;
2439	}	2598	}
2440	}	2599	}
2441		2600
2442	static SV *	2601	static SV *
2443	coro_new_rouse_cb (pTHX)	2602	coro_new_rouse_cb (pTHX)
2444	{	2603	{
2445	HV *hv = (HV *)SvRV (coro_current);	2604	HV *hv = (HV *)SvRV (coro_current);
2446	struct coro *coro = SvSTATE_hv (hv);	2605	struct coro *coro = SvSTATE_hv (hv);
2447	SV *data = newRV_inc ((SV *)hv);	2606	SV *data = newRV_noinc (&PL_sv_undef);
2448	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);	2607	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2449		2608
2450	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2609	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2451	SvREFCNT_dec (data); /* magicext increases the refcount */	2610	SvREFCNT_dec_NN (data); /* magicext increases the refcount */
2452		2611
2453	SvREFCNT_dec (coro->rouse_cb);	2612	SvREFCNT_dec (coro->rouse_cb);
2454	coro->rouse_cb = SvREFCNT_inc_NN (cb);	2613	coro->rouse_cb = SvREFCNT_inc_NN (cb);
2455		2614
2456	return cb;	2615	return cb;
…		…
2556		2715
2557	/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */	2716	/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2558	static void	2717	static void
2559	slf_destroy (pTHX_ struct coro *coro)	2718	slf_destroy (pTHX_ struct coro *coro)
2560	{	2719	{
2561	/* this callback is reserved for slf functions needing to do cleanup */	2720	struct CoroSLF frame = coro->slf_frame;
2562	if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2563	coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2564		2721
2565	/*	2722	/*
2566	* The on_destroy above most likely is from an SLF call.	2723	* The on_destroy below most likely is from an SLF call.
2567	* Since by definition the SLF call will not finish when we destroy	2724	* Since by definition the SLF call will not finish when we destroy
2568	* the coro, we will have to force-finish it here, otherwise	2725	* the coro, we will have to force-finish it here, otherwise
2569	* cleanup functions cannot call SLF functions.	2726	* cleanup functions cannot call SLF functions.
2570	*/	2727	*/
2571	coro->slf_frame.prepare = 0;	2728	coro->slf_frame.prepare = 0;
		2729
		2730	/* this callback is reserved for slf functions needing to do cleanup */
		2731	if (frame.destroy && frame.prepare && !PL_dirty)
		2732	frame.destroy (aTHX_ &frame);
2572	}	2733	}
2573		2734
2574	/*	2735	/*
2575	* these not obviously related functions are all rolled into one	2736	* these not obviously related functions are all rolled into one
2576	* function to increase chances that they all will call transfer with the same	2737	* function to increase chances that they all will call transfer with the same
…		…
2759	static void	2920	static void
2760	coro_pop_on_leave (pTHX_ void *coro)	2921	coro_pop_on_leave (pTHX_ void *coro)
2761	{	2922	{
2762	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);	2923	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2763	on_enterleave_call (aTHX_ sv_2mortal (cb));	2924	on_enterleave_call (aTHX_ sv_2mortal (cb));
		2925	}
		2926
		2927	static void
		2928	enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg)
		2929	{
		2930	if (!hook)
		2931	return;
		2932
		2933	if (!*avp)
		2934	{
		2935	*avp = newAV ();
		2936	AvREAL_off (*avp);
		2937	}
		2938
		2939	av_push (*avp, (SV *)hook);
		2940	av_push (*avp, (SV *)arg);
		2941	}
		2942
		2943	static void
		2944	enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute)
		2945	{
		2946	AV *av = *avp;
		2947	int i;
		2948
		2949	if (!av)
		2950	return;
		2951
		2952	for (i = AvFILLp (av) - 1; i >= 0; i -= 2)
		2953	if (AvARRAY (av)[i] == (SV *)hook)
		2954	{
		2955	if (execute)
		2956	hook (aTHX_ (void *)AvARRAY (av)[i + 1]);
		2957
		2958	memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1);
		2959	av_pop (av);
		2960	av_pop (av);
		2961	break;
		2962	}
		2963
		2964	if (AvFILLp (av) >= 0)
		2965	{
		2966	*avp = 0;
		2967	SvREFCNT_dec_NN (av);
		2968	}
		2969	}
		2970
		2971	static void
		2972	api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
		2973	{
		2974	struct coro *coro = SvSTATE (coro_sv);
		2975
		2976	if (SvSTATE_current == coro)
		2977	if (enter)
		2978	enter (aTHX_ enter_arg);
		2979
		2980	enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg);
		2981	enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg);
		2982	}
		2983
		2984	static void
		2985	api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave)
		2986	{
		2987	struct coro *coro = SvSTATE (coro_sv);
		2988
		2989	enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
		2990	enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro);
		2991	}
		2992
		2993	static void
		2994	savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter)
		2995	{
		2996	struct coro *coro = SvSTATE_current;
		2997
		2998	enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
		2999	}
		3000
		3001	static void
		3002	savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave)
		3003	{
		3004	struct coro *coro = SvSTATE_current;
		3005
		3006	enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1);
		3007	}
		3008
		3009	static void
		3010	api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
		3011	{
		3012	api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg);
		3013
		3014	/* this ought to be much cheaper than malloc + a single destructor call */
		3015	if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter);
		3016	if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave);
2764	}	3017	}
2765		3018
2766	/*****************************************************************************/	3019	/*****************************************************************************/
2767	/* PerlIO::cede */	3020	/* PerlIO::cede */
2768		3021
…		…
2898	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));	3151	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2899	PUTBACK;	3152	PUTBACK;
2900	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);	3153	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2901	}	3154	}
2902		3155
2903	SvREFCNT_dec (cb);	3156	SvREFCNT_dec_NN (cb);
2904	}	3157	}
2905	}	3158	}
2906		3159
2907	static void	3160	static void
2908	coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)	3161	coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
…		…
2916	{	3169	{
2917	AV *av = (AV *)frame->data;	3170	AV *av = (AV *)frame->data;
2918	SV *count_sv = AvARRAY (av)[0];	3171	SV *count_sv = AvARRAY (av)[0];
2919	SV *coro_hv = SvRV (coro_current);	3172	SV *coro_hv = SvRV (coro_current);
2920		3173
		3174	frame->destroy = 0;
		3175
2921	/* if we are about to throw, don't actually acquire the lock, just throw */	3176	/* if we are about to throw, don't actually acquire the lock, just throw */
2922	if (CORO_THROW)	3177	if (ecb_expect_false (CORO_THROW))
		3178	{
		3179	/* we still might be responsible for the semaphore, so wake up others */
		3180	coro_semaphore_adjust (aTHX_ av, 0);
		3181
2923	return 0;	3182	return 0;
		3183	}
2924	else if (SvIVX (count_sv) > 0)	3184	else if (SvIVX (count_sv) > 0)
2925	{	3185	{
2926	frame->destroy = 0;
2927
2928	if (acquire)	3186	if (acquire)
2929	SvIVX (count_sv) = SvIVX (count_sv) - 1;	3187	SvIVX (count_sv) = SvIVX (count_sv) - 1;
2930	else	3188	else
2931	coro_semaphore_adjust (aTHX_ av, 0);	3189	coro_semaphore_adjust (aTHX_ av, 0);
2932		3190
…		…
2936	{	3194	{
2937	int i;	3195	int i;
2938	/* if we were woken up but can't down, we look through the whole */	3196	/* if we were woken up but can't down, we look through the whole */
2939	/* waiters list and only add us if we aren't in there already */	3197	/* waiters list and only add us if we aren't in there already */
2940	/* this avoids some degenerate memory usage cases */	3198	/* this avoids some degenerate memory usage cases */
2941	for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug	3199	for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2942	if (AvARRAY (av)[i] == coro_hv)	3200	if (AvARRAY (av)[i] == coro_hv)
2943	return 1;	3201	return 1;
2944		3202
2945	av_push (av, SvREFCNT_inc (coro_hv));	3203	av_push (av, SvREFCNT_inc (coro_hv));
2946	return 1;	3204	return 1;
…		…
3043	{	3301	{
3044	api_ready (aTHX_ cb);	3302	api_ready (aTHX_ cb);
3045	sv_setiv (cb, 0); /* signal waiter */	3303	sv_setiv (cb, 0); /* signal waiter */
3046	}	3304	}
3047		3305
3048	SvREFCNT_dec (cb);	3306	SvREFCNT_dec_NN (cb);
3049		3307
3050	--count;	3308	--count;
3051	}	3309	}
3052	}	3310	}
3053		3311
…		…
3138	}	3396	}
3139		3397
3140	av_push (state, data_sv);	3398	av_push (state, data_sv);
3141		3399
3142	api_ready (aTHX_ coro);	3400	api_ready (aTHX_ coro);
3143	SvREFCNT_dec (coro);	3401	SvREFCNT_dec_NN (coro);
3144	SvREFCNT_dec ((AV *)state);	3402	SvREFCNT_dec_NN ((AV *)state);
3145	}	3403	}
3146		3404
3147	static int	3405	static int
3148	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	3406	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
3149	{	3407	{
…		…
3154	/* it quickly returns */	3412	/* it quickly returns */
3155	if (CORO_THROW)	3413	if (CORO_THROW)
3156	return 0;	3414	return 0;
3157		3415
3158	/* one element that is an RV? repeat! */	3416	/* one element that is an RV? repeat! */
3159	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	3417	if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
3160	return 1;	3418	return 1;
3161		3419
3162	/* restore status */	3420	/* restore status */
3163	{	3421	{
3164	SV *data_sv = av_pop (state);	3422	SV *data_sv = av_pop (state);
…		…
3167	errno = data->errorno;	3425	errno = data->errorno;
3168	PL_laststype = data->laststype;	3426	PL_laststype = data->laststype;
3169	PL_laststatval = data->laststatval;	3427	PL_laststatval = data->laststatval;
3170	PL_statcache = data->statcache;	3428	PL_statcache = data->statcache;
3171		3429
3172	SvREFCNT_dec (data_sv);	3430	SvREFCNT_dec_NN (data_sv);
3173	}	3431	}
3174		3432
3175	/* push result values */	3433	/* push result values */
3176	{	3434	{
3177	dSP;	3435	dSP;
…		…
3323		3581
3324	#ifndef __cplusplus	3582	#ifndef __cplusplus
3325	ecb_cold XS(boot_Coro__State);	3583	ecb_cold XS(boot_Coro__State);
3326	#endif	3584	#endif
3327		3585
		3586	#if CORO_JIT
		3587
		3588	static void ecb_noinline ecb_cold
		3589	pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
		3590	{
		3591	dSP;
		3592	AV *av = newAV ();
		3593
		3594	av_store (av, 3, newSVuv (d));
		3595	av_store (av, 2, newSVuv (c));
		3596	av_store (av, 1, newSVuv (b));
		3597	av_store (av, 0, newSVuv (a));
		3598
		3599	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		3600
		3601	PUTBACK;
		3602	}
		3603
		3604	static void ecb_noinline ecb_cold
		3605	jit_init (pTHX)
		3606	{
		3607	dSP;
		3608	SV *load, *save;
		3609	char *map_base;
		3610	char *load_ptr, *save_ptr;
		3611	STRLEN load_len, save_len, map_len;
		3612	int count;
		3613
		3614	eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
		3615
		3616	PUSHMARK (SP);
		3617	#define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
		3618	#include "state.h"
		3619	count = call_pv ("Coro::State::_jit", G_ARRAY);
		3620	SPAGAIN;
		3621
		3622	save = POPs; save_ptr = SvPVbyte (save, save_len);
		3623	load = POPs; load_ptr = SvPVbyte (load, load_len);
		3624
		3625	map_len = load_len + save_len + 16;
		3626
		3627	map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
		3628
		3629	if (map_base == (char *)MAP_FAILED)
		3630	map_base = mmap (0, map_len, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
		3631
		3632	assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
		3633
		3634	load_perl_slots = (load_save_perl_slots_type)map_base;
		3635	memcpy (map_base, load_ptr, load_len);
		3636
		3637	map_base += (load_len + 15) & ~15;
		3638
		3639	save_perl_slots = (load_save_perl_slots_type)map_base;
		3640	memcpy (map_base, save_ptr, save_len);
		3641
		3642	/* we are good citizens and try to make the page read-only, so the evil evil */
		3643	/* hackers might have it a bit more difficult */
		3644	mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
		3645
		3646	PUTBACK;
		3647	eval_pv ("undef &Coro::State::_jit", 1);
		3648	}
		3649
		3650	#endif
		3651
3328	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	3652	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
3329		3653
3330	PROTOTYPES: DISABLE	3654	PROTOTYPES: DISABLE
3331		3655
3332	BOOT:	3656	BOOT:
3333	{	3657	{
		3658	#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
		3659	#include "state.h"
3334	#ifdef USE_ITHREADS	3660	#ifdef USE_ITHREADS
3335	# if CORO_PTHREAD	3661	# if CORO_PTHREAD
3336	coro_thx = PERL_GET_CONTEXT;	3662	coro_thx = PERL_GET_CONTEXT;
3337	# endif	3663	# endif
3338	#endif	3664	#endif
3339	BOOT_PAGESIZE;	3665	/* perl defines these to check for existance first, but why it doesn't */
		3666	/* just create them one at init time is not clear to me, except for */
		3667	/* programs trying to delete them, but... */
		3668	/* anyway, we declare this as invalid and make sure they are initialised here */
		3669	DEFSV;
		3670	ERRSV;
3340		3671
3341	cctx_current = cctx_new_empty ();	3672	cctx_current = cctx_new_empty ();
3342		3673
3343	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	3674	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
3344	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	3675	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
3345		3676
3346	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	3677	{
3347	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	3678	/*
3348	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;	3679	* we provide a vtbvl for %SIG magic that replaces PL_vtbl_sig
		3680	* by coro_sig_vtbl in hash values.
		3681	*/
		3682	MAGIC *mg = mg_find ((SV *)GvHV (gv_fetchpv ("SIG", GV_ADD | GV_NOTQUAL, SVt_PVHV)), PERL_MAGIC_sig);
		3683
		3684	/* this only works if perl doesn't have a vtbl for %SIG */
		3685	assert (!mg->mg_virtual);
		3686
		3687	/*
		3688	* The irony is that the perl API itself asserts that mg_virtual
		3689	* must be non-const, yet perl5porters insisted on marking their
		3690	* vtbls as read-only, just to thwart perl modules from patching
		3691	* them.
		3692	*/
		3693	mg->mg_virtual = (MGVTBL *)&coro_sig_vtbl;
		3694	mg->mg_flags |= MGf_COPY;
		3695
		3696	coro_sigelem_vtbl = PL_vtbl_sigelem;
		3697	coro_sigelem_vtbl.svt_get = coro_sigelem_get;
		3698	coro_sigelem_vtbl.svt_set = coro_sigelem_set;
		3699	coro_sigelem_vtbl.svt_clear = coro_sigelem_clr;
		3700	}
3349		3701
3350	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
3351	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));	3702	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
3352	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));	3703	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
3353		3704
3354	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	3705	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
		3706
		3707	newCONSTSUB (coro_state_stash, "BACKEND", newSVpv (CORO_BACKEND, 0)); /* undocumented */
3355		3708
3356	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	3709	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
3357	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	3710	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
3358	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));	3711	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
3359	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));	3712	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
…		…
3387	coroapi.prepare_cede_notself = prepare_cede_notself;	3740	coroapi.prepare_cede_notself = prepare_cede_notself;
3388		3741
3389	time_init (aTHX);	3742	time_init (aTHX);
3390		3743
3391	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));	3744	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
		3745	#if CORO_JIT
		3746	PUTBACK;
		3747	jit_init (aTHX);
		3748	SPAGAIN;
		3749	#endif
3392	}	3750	}
3393		3751
3394	SV *	3752	SV *
3395	new (SV *klass, ...)	3753	new (SV *klass, ...)
3396	ALIAS:	3754	ALIAS:
…		…
3403	void	3761	void
3404	transfer (...)	3762	transfer (...)
3405	PROTOTYPE: $$	3763	PROTOTYPE: $$
3406	CODE:	3764	CODE:
3407	CORO_EXECUTE_SLF_XS (slf_init_transfer);	3765	CORO_EXECUTE_SLF_XS (slf_init_transfer);
3408
3409	void
3410	_exit (int code)
3411	PROTOTYPE: $
3412	CODE:
3413	_exit (code);
3414		3766
3415	SV *	3767	SV *
3416	clone (Coro::State coro)	3768	clone (Coro::State coro)
3417	CODE:	3769	CODE:
3418	{	3770	{
…		…
3473	void	3825	void
3474	list ()	3826	list ()
3475	PROTOTYPE:	3827	PROTOTYPE:
3476	PPCODE:	3828	PPCODE:
3477	{	3829	{
3478	struct coro *coro;	3830	struct coro *coro;
3479	for (coro = coro_first; coro; coro = coro->next)	3831	for (coro = coro_first; coro; coro = coro->next)
3480	if (coro->hv)	3832	if (coro->hv)
3481	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));	3833	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
3482	}	3834	}
3483		3835
…		…
3485	call (Coro::State coro, SV *coderef)	3837	call (Coro::State coro, SV *coderef)
3486	ALIAS:	3838	ALIAS:
3487	eval = 1	3839	eval = 1
3488	CODE:	3840	CODE:
3489	{	3841	{
		3842	struct coro *current = SvSTATE_current;
		3843
3490	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3844	if ((coro == current) || (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)))
3491	{	3845	{
3492	struct coro *current = SvSTATE_current;
3493	struct CoroSLF slf_save;	3846	struct CoroSLF slf_save;
3494		3847
3495	if (current != coro)	3848	if (current != coro)
3496	{	3849	{
3497	PUTBACK;	3850	PUTBACK;
…		…
3547	RETVAL = boolSV (coro->flags & ix);	3900	RETVAL = boolSV (coro->flags & ix);
3548	OUTPUT:	3901	OUTPUT:
3549	RETVAL	3902	RETVAL
3550		3903
3551	void	3904	void
3552	throw (Coro::State self, SV *exception = &PL_sv_undef)	3905	throw (SV *self, SV *exception = &PL_sv_undef)
3553	PROTOTYPE: $;$	3906	PROTOTYPE: $;$
3554	CODE:	3907	CODE:
3555	{	3908	{
		3909	struct coro *coro = SvSTATE (self);
3556	struct coro *current = SvSTATE_current;	3910	struct coro *current = SvSTATE_current;
3557	SV **exceptionp = self == current ? &CORO_THROW : &self->except;	3911	SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3558	SvREFCNT_dec (*exceptionp);	3912	SvREFCNT_dec (*exceptionp);
3559	SvGETMAGIC (exception);	3913	SvGETMAGIC (exception);
3560	*exceptionp = SvOK (exception) ? newSVsv (exception) : 0;	3914	*exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
		3915
		3916	api_ready (aTHX_ self);
3561	}	3917	}
3562		3918
3563	void	3919	void
3564	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3920	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3565	PROTOTYPE: $;$	3921	PROTOTYPE: $;$
…		…
3642		3998
3643	void	3999	void
3644	times (Coro::State self)	4000	times (Coro::State self)
3645	PPCODE:	4001	PPCODE:
3646	{	4002	{
3647	struct coro *current = SvSTATE (coro_current);	4003	struct coro *current = SvSTATE (coro_current);
3648		4004
3649	if (ecb_expect_false (current == self))	4005	if (ecb_expect_false (current == self))
3650	{	4006	{
3651	coro_times_update ();	4007	coro_times_update ();
3652	coro_times_add (SvSTATE (coro_current));	4008	coro_times_add (SvSTATE (coro_current));
…		…
3659	if (ecb_expect_false (current == self))	4015	if (ecb_expect_false (current == self))
3660	coro_times_sub (SvSTATE (coro_current));	4016	coro_times_sub (SvSTATE (coro_current));
3661	}	4017	}
3662		4018
3663	void	4019	void
3664	swap_sv (Coro::State coro, SV *sv, SV *swapsv)	4020	swap_sv (Coro::State coro, SV *sva, SV *svb)
3665	CODE:	4021	CODE:
3666	{	4022	{
3667	struct coro *current = SvSTATE_current;	4023	struct coro *current = SvSTATE_current;
		4024	AV *swap_sv;
		4025	int i;
		4026
		4027	sva = SvRV (sva);
		4028	svb = SvRV (svb);
3668		4029
3669	if (current == coro)	4030	if (current == coro)
3670	SWAP_SVS (current);	4031	SWAP_SVS_LEAVE (current);
3671		4032
3672	if (!coro->swap_sv)	4033	if (!coro->swap_sv)
3673	coro->swap_sv = newAV ();	4034	coro->swap_sv = newAV ();
3674		4035
		4036	swap_sv = coro->swap_sv;
		4037
		4038	for (i = AvFILLp (swap_sv) - 1; i >= 0; i -= 2)
		4039	{
		4040	SV *a = AvARRAY (swap_sv)[i ];
		4041	SV *b = AvARRAY (swap_sv)[i + 1];
		4042
		4043	if (a == sva && b == svb)
		4044	{
		4045	SvREFCNT_dec_NN (a);
		4046	SvREFCNT_dec_NN (b);
		4047
		4048	for (; i <= AvFILLp (swap_sv) - 2; i++)
		4049	AvARRAY (swap_sv)[i] = AvARRAY (swap_sv)[i + 2];
		4050
		4051	AvFILLp (swap_sv) -= 2;
		4052
		4053	goto removed;
		4054	}
		4055	}
		4056
3675	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));	4057	av_push (swap_sv, SvREFCNT_inc_NN (sva));
3676	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));	4058	av_push (swap_sv, SvREFCNT_inc_NN (svb));
		4059
		4060	removed:
3677		4061
3678	if (current == coro)	4062	if (current == coro)
3679	SWAP_SVS (current);	4063	SWAP_SVS_ENTER (current);
3680	}	4064	}
3681		4065
3682		4066
3683	MODULE = Coro::State PACKAGE = Coro	4067	MODULE = Coro::State PACKAGE = Coro
3684		4068
3685	BOOT:	4069	BOOT:
3686	{	4070	{
		4071	if (SVt_LAST > 32)
		4072	croak ("Coro internal error: SVt_LAST > 32, swap_sv might need adjustment");
		4073
3687	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	4074	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3688	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	4075	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3689	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);	4076	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3690	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	4077	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3691	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	4078	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
…		…
3695		4082
3696	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	4083	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3697	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	4084	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3698	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	4085	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3699	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */	4086	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3700		4087
3701	coro_stash = gv_stashpv ("Coro", TRUE);	4088	coro_stash = gv_stashpv ("Coro", TRUE);
3702		4089
3703	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));	4090	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3704	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));	4091	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3705	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));	4092	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
…		…
3717	coroapi.ready = api_ready;	4104	coroapi.ready = api_ready;
3718	coroapi.is_ready = api_is_ready;	4105	coroapi.is_ready = api_is_ready;
3719	coroapi.nready = coro_nready;	4106	coroapi.nready = coro_nready;
3720	coroapi.current = coro_current;	4107	coroapi.current = coro_current;
3721		4108
		4109	coroapi.enterleave_hook = api_enterleave_hook;
		4110	coroapi.enterleave_unhook = api_enterleave_unhook;
		4111	coroapi.enterleave_scope_hook = api_enterleave_scope_hook;
		4112
3722	/*GCoroAPI = &coroapi;*/	4113	/*GCoroAPI = &coroapi;*/
3723	sv_setiv (sv, (IV)&coroapi);	4114	sv_setiv (sv, PTR2IV (&coroapi));
3724	SvREADONLY_on (sv);	4115	SvREADONLY_on (sv);
3725	}	4116	}
3726	}	4117	}
3727		4118
3728	SV *	4119	SV *
…		…
3791		4182
3792	void	4183	void
3793	_set_current (SV *current)	4184	_set_current (SV *current)
3794	PROTOTYPE: $	4185	PROTOTYPE: $
3795	CODE:	4186	CODE:
3796	SvREFCNT_dec (SvRV (coro_current));	4187	SvREFCNT_dec_NN (SvRV (coro_current));
3797	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));	4188	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
3798		4189
3799	void	4190	void
3800	_set_readyhook (SV *hook)	4191	_set_readyhook (SV *hook)
3801	PROTOTYPE: $	4192	PROTOTYPE: $
…		…
3885		4276
3886	if ((SV *)hv == &PL_sv_undef)	4277	if ((SV *)hv == &PL_sv_undef)
3887	{	4278	{
3888	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);	4279	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3889	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));	4280	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3890	SvREFCNT_dec (sv);	4281	SvREFCNT_dec_NN (sv);
3891	}	4282	}
3892		4283
3893	{	4284	{
3894	struct coro *coro = SvSTATE_hv (hv);	4285	struct coro *coro = SvSTATE_hv (hv);
3895		4286
…		…
3902	api_ready (aTHX_ (SV *)hv);	4293	api_ready (aTHX_ (SV *)hv);
3903		4294
3904	if (GIMME_V != G_VOID)	4295	if (GIMME_V != G_VOID)
3905	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));	4296	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3906	else	4297	else
3907	SvREFCNT_dec (hv);	4298	SvREFCNT_dec_NN (hv);
3908	}	4299	}
3909		4300
3910	SV *	4301	SV *
3911	rouse_cb ()	4302	rouse_cb ()
3912	PROTOTYPE:	4303	PROTOTYPE:
…		…
3927	on_leave = 1	4318	on_leave = 1
3928	PROTOTYPE: &	4319	PROTOTYPE: &
3929	CODE:	4320	CODE:
3930	{	4321	{
3931	struct coro *coro = SvSTATE_current;	4322	struct coro *coro = SvSTATE_current;
3932	AV **avp = ix ? &coro->on_leave : &coro->on_enter;	4323	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3933		4324
3934	block = s_get_cv_croak (block);	4325	block = s_get_cv_croak (block);
3935		4326
3936	if (!*avp)	4327	if (!*avp)
3937	*avp = newAV ();	4328	*avp = newAV ();
…		…
3957		4348
3958	SV *	4349	SV *
3959	new (SV *klass, SV *count = 0)	4350	new (SV *klass, SV *count = 0)
3960	CODE:	4351	CODE:
3961	{	4352	{
3962	int semcnt = 1;	4353	int semcnt = 1;
3963		4354
3964	if (count)	4355	if (count)
3965	{	4356	{
3966	SvGETMAGIC (count);	4357	SvGETMAGIC (count);
3967		4358
…		…
3991	RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]);	4382	RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]);
3992	OUTPUT:	4383	OUTPUT:
3993	RETVAL	4384	RETVAL
3994		4385
3995	void	4386	void
3996	up (SV *self, int adjust = 1)	4387	up (SV *self)
3997	ALIAS:
3998	adjust = 1
3999	CODE:	4388	CODE:
		4389	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), 1);
		4390
		4391	void
		4392	adjust (SV *self, int adjust)
		4393	CODE:
4000	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	4394	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), adjust);
4001		4395
4002	void	4396	void
4003	down (...)	4397	down (...)
4004	CODE:	4398	CODE:
4005	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	4399	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
…		…
4027	XSRETURN_NO;	4421	XSRETURN_NO;
4028	}	4422	}
4029		4423
4030	void	4424	void
4031	waiters (SV *self)	4425	waiters (SV *self)
4032	PPCODE:	4426	PPCODE:
4033	{	4427	{
4034	AV *av = (AV *)SvRV (self);	4428	AV *av = (AV *)SvRV (self);
4035	int wcount = AvFILLp (av) + 1 - 1;	4429	int wcount = AvFILLp (av) + 1 - 1;
4036		4430
4037	if (GIMME_V == G_SCALAR)	4431	if (GIMME_V == G_SCALAR)
…		…
4046	}	4440	}
4047		4441
4048	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet	4442	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4049		4443
4050	void	4444	void
4051	_may_delete (SV *sem, int count, int extra_refs)	4445	_may_delete (SV *sem, int count, unsigned int extra_refs)
4052	PPCODE:	4446	PPCODE:
4053	{	4447	{
4054	AV *av = (AV *)SvRV (sem);	4448	AV *av = (AV *)SvRV (sem);
4055		4449
4056	if (SvREFCNT ((SV *)av) == 1 + extra_refs	4450	if (SvREFCNT ((SV *)av) == 1 + extra_refs
4057	&& AvFILLp (av) == 0 /* no waiters, just count */	4451	&& AvFILLp (av) == 0 /* no waiters, just count */
4058	&& SvIV (AvARRAY (av)[0]) == count)	4452	&& SvIV (AvARRAY (av)[0]) == count)
4059	XSRETURN_YES;	4453	XSRETURN_YES;
…		…
4080		4474
4081	void	4475	void
4082	broadcast (SV *self)	4476	broadcast (SV *self)
4083	CODE:	4477	CODE:
4084	{	4478	{
4085	AV *av = (AV *)SvRV (self);	4479	AV *av = (AV *)SvRV (self);
4086	coro_signal_wake (aTHX_ av, AvFILLp (av));	4480	coro_signal_wake (aTHX_ av, AvFILLp (av));
4087	}	4481	}
4088		4482
4089	void	4483	void
4090	send (SV *self)	4484	send (SV *self)
…		…
4098	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */	4492	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
4099	}	4493	}
4100		4494
4101	IV	4495	IV
4102	awaited (SV *self)	4496	awaited (SV *self)
4103	CODE:	4497	CODE:
4104	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;	4498	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
4105	OUTPUT:	4499	OUTPUT:
4106	RETVAL	4500	RETVAL
4107		4501
4108		4502
…		…
4113		4507
4114	void	4508	void
4115	_schedule (...)	4509	_schedule (...)
4116	CODE:	4510	CODE:
4117	{	4511	{
4118	static int incede;	4512	static int incede;
4119		4513
4120	api_cede_notself (aTHX);	4514	api_cede_notself (aTHX);
4121		4515
4122	++incede;	4516	++incede;
4123	while (coro_nready >= incede && api_cede (aTHX))	4517	while (coro_nready >= incede && api_cede (aTHX))
…		…
4167	{	4561	{
4168	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;	4562	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4169	coro_old_pp_sselect = 0;	4563	coro_old_pp_sselect = 0;
4170	}	4564	}
4171		4565
		4566	MODULE = Coro::State PACKAGE = Coro::Util
		4567
		4568	void
		4569	_exit (int code)
		4570	CODE:
		4571	_exit (code);
		4572
		4573	NV
		4574	time ()
		4575	CODE:
		4576	RETVAL = nvtime (aTHX);
		4577	OUTPUT:
		4578	RETVAL
		4579
		4580	NV
		4581	gettimeofday ()
		4582	PPCODE:
		4583	{
		4584	UV tv [2];
		4585	u2time (aTHX_ tv);
		4586	EXTEND (SP, 2);
		4587	PUSHs (sv_2mortal (newSVuv (tv [0])));
		4588	PUSHs (sv_2mortal (newSVuv (tv [1])));
		4589	}
		4590

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