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Comparing Coro/Coro/State.xs (file contents):
Revision 1.428 by root, Wed Dec 5 16:34:12 2012 UTC vs.
Revision 1.477 by root, Sat Feb 29 21:40:22 2020 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"
…		…
14	#include "perliol.h"	34	#include "perliol.h"
15		35
16	#include "schmorp.h"	36	#include "schmorp.h"
17		37
18	#define ECB_NO_THREADS 1	38	#define ECB_NO_THREADS 1
		39	#define ECB_NO_LIBM 1
19	#include "ecb.h"	40	#include "ecb.h"
20		41
21	#include <stddef.h>	42	#include <stddef.h>
22	#include <stdio.h>	43	#include <stdio.h>
23	#include <errno.h>	44	#include <errno.h>
24	#include <assert.h>	45	#include <assert.h>
25		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
26	#ifndef SVs_PADSTALE	55	#ifndef SVs_PADSTALE
27	# define SVs_PADSTALE 0	56	# define SVs_PADSTALE 0
28	#endif	57	#endif
29		58
30	#ifdef PadARRAY	59	#ifdef PadARRAY
31	# define NEWPADAPI	60	# define NEWPADAPI 1
32	# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))	61	# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
33	#else	62	#else
34	typedef AV PADNAMELIST;	63	typedef AV PADNAMELIST;
35	# if !PERL_VERSION_ATLEAST(5,8,0)	64	# if !PERL_VERSION_ATLEAST(5,8,0)
36	typedef AV PADLIST;	65	typedef AV PADLIST;
…		…
41	# define PadlistNAMES(pl) (*PadlistARRAY (pl))	70	# define PadlistNAMES(pl) (*PadlistARRAY (pl))
42	# define PadARRAY AvARRAY	71	# define PadARRAY AvARRAY
43	# define PadMAX AvFILLp	72	# define PadMAX AvFILLp
44	# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))	73	# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
45	#endif	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
		86	#endif
46		87
47	#if defined(_WIN32)	88	#if defined(_WIN32)
48	# undef HAS_GETTIMEOFDAY	89	# undef HAS_GETTIMEOFDAY
49	# undef setjmp	90	# undef setjmp
50	# undef longjmp	91	# undef longjmp
…		…
52	# define setjmp _setjmp /* deep magic */	93	# define setjmp _setjmp /* deep magic */
53	#else	94	#else
54	# include <inttypes.h> /* most portable stdint.h */	95	# include <inttypes.h> /* most portable stdint.h */
55	#endif	96	#endif
56		97
57	#if HAVE_MMAP
58	# include <unistd.h>
59	# include <sys/mman.h>
60	# ifndef MAP_ANONYMOUS
61	# ifdef MAP_ANON
62	# define MAP_ANONYMOUS MAP_ANON
63	# else
64	# undef HAVE_MMAP
65	# endif
66	# endif
67	# include <limits.h>
68	# ifndef PAGESIZE
69	# define PAGESIZE pagesize
70	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
71	static long pagesize;
72	# else
73	# define BOOT_PAGESIZE (void)0
74	# endif
75	#else
76	# define PAGESIZE 0
77	# define BOOT_PAGESIZE (void)0
78	#endif
79
80	#if CORO_USE_VALGRIND
81	# include <valgrind/valgrind.h>
82	#endif
83
84	/* the maximum number of idle cctx that will be pooled */	98	/* the maximum number of idle cctx that will be pooled */
85	static int cctx_max_idle = 4;	99	static int cctx_max_idle = 4;
86		100
87	#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)	101	#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
88	# define HAS_SCOPESTACK_NAME 1	102	# define HAS_SCOPESTACK_NAME 1
89	#endif
90
91	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
92	# undef CORO_STACKGUARD
93	#endif
94
95	#ifndef CORO_STACKGUARD
96	# define CORO_STACKGUARD 0
97	#endif	103	#endif
98		104
99	/* prefer perl internal functions over our own? */	105	/* prefer perl internal functions over our own? */
100	#ifndef CORO_PREFER_PERL_FUNCTIONS	106	#ifndef CORO_PREFER_PERL_FUNCTIONS
101	# define CORO_PREFER_PERL_FUNCTIONS 0	107	# define CORO_PREFER_PERL_FUNCTIONS 0
…		…
130	# define CORO_CLOCK_MONOTONIC 1	136	# define CORO_CLOCK_MONOTONIC 1
131	# define CORO_CLOCK_THREAD_CPUTIME_ID 3	137	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
132	# endif	138	# endif
133	#endif	139	#endif
134		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
135	static double (*nvtime)(); /* so why doesn't it take void? */	159	static double (*nvtime)(); /* so why doesn't it take void? */
136	static void (*u2time)(pTHX_ UV ret[2]);	160	static void (*u2time)(pTHX_ UV ret[2]);
137		161
138	/* we hijack an hopefully unused CV flag for our purposes */	162	/* we hijack an hopefully unused CV flag for our purposes */
139	#define CVf_SLF 0x4000	163	#define CVf_SLF 0x4000
…		…
154		178
155	static GV *irsgv; /* $/ */	179	static GV *irsgv; /* $/ */
156	static GV *stdoutgv; /* *STDOUT */	180	static GV *stdoutgv; /* *STDOUT */
157	static SV *rv_diehook;	181	static SV *rv_diehook;
158	static SV *rv_warnhook;	182	static SV *rv_warnhook;
159	static HV *hv_sig; /* %SIG */
160		183
161	/* async_pool helper stuff */	184	/* async_pool helper stuff */
162	static SV *sv_pool_rss;	185	static SV *sv_pool_rss;
163	static SV *sv_pool_size;	186	static SV *sv_pool_size;
164	static SV *sv_async_pool_idle; /* description string */	187	static SV *sv_async_pool_idle; /* description string */
…		…
192	typedef struct coro_cctx	215	typedef struct coro_cctx
193	{	216	{
194	struct coro_cctx *next;	217	struct coro_cctx *next;
195		218
196	/* the stack */	219	/* the stack */
197	void *sptr;	220	struct coro_stack stack;
198	size_t ssize;
199		221
200	/* cpu state */	222	/* cpu state */
201	void *idle_sp; /* sp of top-level transfer/schedule/cede call */	223	void *idle_sp; /* sp of top-level transfer/schedule/cede call */
202	#ifndef NDEBUG	224	#ifndef NDEBUG
203	JMPENV *idle_te; /* same as idle_sp, but for top_env */	225	JMPENV *idle_te; /* same as idle_sp, but for top_env */
…		…
271	SV *saved_deffh;	293	SV *saved_deffh;
272	SV *invoke_cb;	294	SV *invoke_cb;
273	AV *invoke_av;	295	AV *invoke_av;
274		296
275	/* on_enter/on_leave */	297	/* on_enter/on_leave */
276	AV *on_enter;	298	AV *on_enter; AV *on_enter_xs;
277	AV *on_leave;	299	AV *on_leave; AV *on_leave_xs;
278		300
279	/* swap_sv */	301	/* swap_sv */
280	AV *swap_sv;	302	AV *swap_sv;
281		303
282	/* times */	304	/* times */
…		…
312	#define coro_nready coroapi.nready	334	#define coro_nready coroapi.nready
313		335
314	/** JIT *********************************************************************/	336	/** JIT *********************************************************************/
315		337
316	#if CORO_JIT	338	#if CORO_JIT
317	/* APPLE doesn't have HAVE_MMAP though */	339	/* APPLE doesn't have mmap though */
318	#define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)	340	#define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
319	#ifndef CORO_JIT_TYPE	341	#ifndef CORO_JIT_TYPE
320	#if __x86_64 && CORO_JIT_UNIXY	342	#if ECB_AMD64 && CORO_JIT_UNIXY
321	#define CORO_JIT_TYPE "amd64-unix"	343	#define CORO_JIT_TYPE "amd64-unix"
322	#elif __i386 && CORO_JIT_UNIXY	344	#elif __i386 && CORO_JIT_UNIXY
323	#define CORO_JIT_TYPE "x86-unix"	345	#define CORO_JIT_TYPE "x86-unix"
324	#endif	346	#endif
325	#endif	347	#endif
326	#endif	348	#endif
327		349
328	#if !defined(CORO_JIT_TYPE) || !HAVE_MMAP	350	#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
329	#undef CORO_JIT	351	#undef CORO_JIT
330	#endif	352	#endif
331		353
332	#if CORO_JIT	354	#if CORO_JIT
333	typedef void (*load_save_perl_slots_type)(perl_slots *);	355	typedef void (*load_save_perl_slots_type)(perl_slots *);
…		…
518		540
519	return 0;	541	return 0;
520	}	542	}
521		543
522	ecb_inline struct coro *	544	ecb_inline struct coro *
523	SvSTATE_ (pTHX_ SV *coro)	545	SvSTATE_ (pTHX_ SV *coro_sv)
524	{	546	{
525	MAGIC *mg;	547	MAGIC *mg;
526		548
527	if (SvROK (coro))	549	if (SvROK (coro_sv))
528	coro = SvRV (coro);	550	coro_sv = SvRV (coro_sv);
529		551
530	mg = SvSTATEhv_p (aTHX_ coro);	552	mg = SvSTATEhv_p (aTHX_ coro_sv);
531	if (!mg)	553	if (!mg)
532	croak ("Coro::State object required");	554	croak ("Coro::State object required");
533		555
534	return (struct coro *)mg->mg_ptr;	556	return (struct coro *)mg->mg_ptr;
535	}	557	}
…		…
546	ecb_inline PADLIST *	568	ecb_inline PADLIST *
547	coro_derive_padlist (pTHX_ CV *cv)	569	coro_derive_padlist (pTHX_ CV *cv)
548	{	570	{
549	PADLIST *padlist = CvPADLIST (cv);	571	PADLIST *padlist = CvPADLIST (cv);
550	PADLIST *newpadlist;	572	PADLIST *newpadlist;
		573	PADNAMELIST *padnames;
551	PAD *newpad;	574	PAD *newpad;
552	PADOFFSET const off = PadlistMAX (padlist) + 1;	575	PADOFFSET off = PadlistMAX (padlist) + 1;
553		576
554	newPADLIST(newpadlist);	577	#if NEWPADAPI
555	#if !PERL_VERSION_ATLEAST(5,15,3)	578
556	/* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */	579	/* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
557	AvREAL_off (newpadlist);	580	/* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
558	#endif	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
559	#if PERL_VERSION_ATLEAST (5,10,0)	591	#if PERL_VERSION_ATLEAST (5,10,0)
560	Perl_pad_push (aTHX_ padlist, off);	592	Perl_pad_push (aTHX_ padlist, off);
561	#else	593	#else
562	Perl_pad_push (aTHX_ padlist, off, 1);	594	Perl_pad_push (aTHX_ padlist, off, 1);
563	#endif	595	#endif
		596
564	newpad = PadlistARRAY (padlist)[off];	597	newpad = PadlistARRAY (padlist)[off];
565	PadlistMAX (padlist) = off - 1;	598	PadlistMAX (padlist) = off - 1;
566		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. */
		605	AvREAL_off (newpadlist);
		606	#endif
		607
567	/* Already extended to 2 elements by newPADLIST. */	608	/* Already extended to 2 elements by newPADLIST. */
568	PadlistMAX (newpadlist) = 1;	609	PadlistMAX (newpadlist) = 1;
569	PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist));	610
		611	padnames = PadlistNAMES (padlist);
		612	++PadnamelistREFCNT (padnames);
		613	PadlistNAMES (newpadlist) = padnames;
		614
570	PadlistARRAY (newpadlist)[1] = newpad;	615	PadlistARRAY (newpadlist)[1] = newpad;
571		616
572	return newpadlist;	617	return newpadlist;
573	}	618	}
574		619
…		…
582		627
583	while (i > 0) /* special-case index 0 */	628	while (i > 0) /* special-case index 0 */
584	{	629	{
585	/* we try to be extra-careful here */	630	/* we try to be extra-careful here */
586	PAD *pad = PadlistARRAY (padlist)[i--];	631	PAD *pad = PadlistARRAY (padlist)[i--];
		632
		633	if (pad)
		634	{
587	I32 j = PadMAX (pad);	635	I32 j = PadMAX (pad);
588		636
589	while (j >= 0)	637	while (j >= 0)
590	SvREFCNT_dec (PadARRAY (pad)[j--]);	638	SvREFCNT_dec (PadARRAY (pad)[j--]);
591		639
592	PadMAX (pad) = -1;	640	PadMAX (pad) = -1;
593	SvREFCNT_dec (pad);	641	SvREFCNT_dec (pad);
		642	}
594	}	643	}
595		644
596	SvREFCNT_dec (PadlistNAMES (padlist));	645	PadnamelistREFCNT_dec (PadlistNAMES (padlist));
597		646
598	#ifdef NEWPADAPI	647	#if NEWPADAPI
599	Safefree (PadlistARRAY (padlist));	648	Safefree (PadlistARRAY (padlist));
600	Safefree (padlist);	649	Safefree (padlist);
601	#else	650	#else
602	AvFILLp (padlist) = -1;	651	AvFILLp (padlist) = -1;
603	AvREAL_off (padlist);	652	AvREAL_off (padlist);
…		…
697	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;	746	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
698		747
699	/* if SvANY points to the head, we need to adjust the pointers,	748	/* if SvANY points to the head, we need to adjust the pointers,
700	* as the pointer for a still points to b, and maybe vice versa.	749	* as the pointer for a still points to b, and maybe vice versa.
701	*/	750	*/
702	#define svany_in_head(type) \	751	U32 svany_in_head_set = (1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV);
703	(((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))	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)))
704		757
705	if (svany_in_head (SvTYPE (a)))	758	if (svany_in_head (SvTYPE (a)))
706	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);	759	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
707		760
708	if (svany_in_head (SvTYPE (b)))	761	if (svany_in_head (SvTYPE (b)))
…		…
711	#endif	764	#endif
712	}	765	}
713		766
714	/* swap sv heads, at least logically */	767	/* swap sv heads, at least logically */
715	static void	768	static void
716	swap_svs (pTHX_ Coro__State c)	769	swap_svs_enter (pTHX_ Coro__State c)
717	{	770	{
718	int i;	771	int i;
719		772
720	for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)	773	for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
721	swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);	774	swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
722	}	775	}
723		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
724	#define SWAP_SVS(coro) \	786	#define SWAP_SVS_ENTER(coro) \
725	if (ecb_expect_false ((coro)->swap_sv)) \	787	if (ecb_expect_false ((coro)->swap_sv)) \
726	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))
727		793
728	static void	794	static void
729	on_enterleave_call (pTHX_ SV *cb);	795	on_enterleave_call (pTHX_ SV *cb);
730		796
731	static void	797	static void
…		…
776		842
777	for (i = 0; i <= AvFILLp (c->on_enter); ++i)	843	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
778	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);	844	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
779	}	845	}
780		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
781	SWAP_SVS (c);	855	SWAP_SVS_ENTER (c);
782	}	856	}
783		857
784	static void	858	static void
785	save_perl (pTHX_ Coro__State c)	859	save_perl (pTHX_ Coro__State c)
786	{	860	{
787	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	}
788		870
789	if (ecb_expect_false (c->on_leave))	871	if (ecb_expect_false (c->on_leave))
790	{	872	{
791	int i;	873	int i;
792		874
…		…
919	#endif	1001	#endif
920		1002
921	New(54,PL_savestack,24,ANY);	1003	New(54,PL_savestack,24,ANY);
922	PL_savestack_ix = 0;	1004	PL_savestack_ix = 0;
923	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
924		1011
925	#if !PERL_VERSION_ATLEAST (5,10,0)	1012	#if !PERL_VERSION_ATLEAST (5,10,0)
926	New(54,PL_retstack,4,OP*);	1013	New(54,PL_retstack,4,OP*);
927	PL_retstack_ix = 0;	1014	PL_retstack_ix = 0;
928	PL_retstack_max = 4;	1015	PL_retstack_max = 4;
…		…
994	}	1081	}
995		1082
996	return rss;	1083	return rss;
997	}	1084	}
998		1085
999	/** coroutine stack handling ************************************************/	1086	/** provide custom get/set/clear methods for %SIG elements ******************/
1000
1001	static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg);
1002	static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg);
1003	static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg);
1004		1087
1005	/* apparently < 5.8.8 */	1088	/* apparently < 5.8.8 */
1006	#ifndef MgPV_nolen_const	1089	#ifndef MgPV_nolen_const
1007	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \	1090	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
1008	SvPV_nolen((SV*)((mg)->mg_ptr)) : \	1091	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
1009	(const char*)(mg)->mg_ptr)	1092	(const char*)(mg)->mg_ptr)
1010	#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	};
1011		1122
1012	/*	1123	/*
1013	* This overrides the default magic get method of %SIG elements.	1124	* This overrides the default magic get method of %SIG elements.
1014	* 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
1015	* 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),
…		…
1017	*/	1128	*/
1018	static int ecb_cold	1129	static int ecb_cold
1019	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	1130	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
1020	{	1131	{
1021	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;
1022		1135
1023	if (*s == '_')	1136	SV *ssv;
1024	{
1025	SV **svp = 0;
1026		1137
1027	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
1028	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
1029
1030	if (svp)	1138	if (!*svp)
1031	{
1032	SV *ssv;
1033
1034	if (!*svp)
1035	ssv = &PL_sv_undef;	1139	ssv = &PL_sv_undef;
1036	else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */	1140	else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1037	ssv = sv_2mortal (newRV_inc (*svp));	1141	ssv = sv_2mortal (newRV_inc (*svp));
1038	else	1142	else
1039	ssv = *svp;	1143	ssv = *svp;
1040		1144
1041	sv_setsv (sv, ssv);	1145	sv_setsv (sv, ssv);
1042	return 0;	1146	return 0;
1043	}
1044	}
1045
1046	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
1047	}	1147	}
1048		1148
1049	static int ecb_cold	1149	static int ecb_cold
1050	coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)	1150	coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
1051	{	1151	{
1052	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;
1053		1155
1054	if (*s == '_')
1055	{
1056	SV **svp = 0;
1057
1058	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
1059	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
1060
1061	if (svp)
1062	{
1063	SV *old = *svp;	1156	SV *old = *svp;
1064	*svp = 0;	1157	*svp = 0;
1065	SvREFCNT_dec (old);	1158	SvREFCNT_dec (old);
1066	return 0;	1159	return 0;
1067	}
1068	}
1069
1070	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
1071	}	1160	}
1072		1161
1073	static int ecb_cold	1162	static int ecb_cold
1074	coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)	1163	coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
1075	{	1164	{
1076	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;
1077		1168
1078	if (*s == '_')
1079	{
1080	SV **svp = 0;
1081
1082	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
1083	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
1084
1085	if (svp)
1086	{
1087	SV *old = *svp;	1169	SV *old = *svp;
1088	*svp = SvOK (sv) ? newSVsv (sv) : 0;	1170	*svp = SvOK (sv) ? newSVsv (sv) : 0;
1089	SvREFCNT_dec (old);	1171	SvREFCNT_dec (old);
1090	return 0;	1172	return 0;
1091	}
1092	}
1093
1094	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
1095	}	1173	}
1096		1174
1097	static void	1175	static void
1098	prepare_nop (pTHX_ struct coro_transfer_args *ta)	1176	prepare_nop (pTHX_ struct coro_transfer_args *ta)
1099	{	1177	{
…		…
1110	static int	1188	static int
1111	slf_check_repeat (pTHX_ struct CoroSLF *frame)	1189	slf_check_repeat (pTHX_ struct CoroSLF *frame)
1112	{	1190	{
1113	return 1;	1191	return 1;
1114	}	1192	}
		1193
		1194	/** coroutine stack handling ************************************************/
1115		1195
1116	static UNOP init_perl_op;	1196	static UNOP init_perl_op;
1117		1197
1118	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 */
1119	init_perl (pTHX_ struct coro *coro)	1199	init_perl (pTHX_ struct coro *coro)
…		…
1145		1225
1146	GvSV (PL_defgv) = newSV (0);	1226	GvSV (PL_defgv) = newSV (0);
1147	GvAV (PL_defgv) = coro->args; coro->args = 0;	1227	GvAV (PL_defgv) = coro->args; coro->args = 0;
1148	GvSV (PL_errgv) = newSV (0);	1228	GvSV (PL_errgv) = newSV (0);
1149	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);
1150	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
1151	PL_rs = newSVsv (GvSV (irsgv));	1234	PL_rs = newSVsv (GvSV (irsgv));
1152	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	1235	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
1153		1236
1154	{	1237	{
1155	dSP;	1238	dSP;
…		…
1159	myop.op_next = Nullop;	1242	myop.op_next = Nullop;
1160	myop.op_type = OP_ENTERSUB;	1243	myop.op_type = OP_ENTERSUB;
1161	myop.op_flags = OPf_WANT_VOID;	1244	myop.op_flags = OPf_WANT_VOID;
1162		1245
1163	PUSHMARK (SP);	1246	PUSHMARK (SP);
1164	PUSHs ((SV *)coro->startcv);	1247	XPUSHs ((SV *)coro->startcv);
1165	PUTBACK;	1248	PUTBACK;
1166	PL_op = (OP *)&myop;	1249	PL_op = (OP *)&myop;
1167	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	1250	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
1168	}	1251	}
1169		1252
…		…
1183	PL_op = (OP *)&init_perl_op;	1266	PL_op = (OP *)&init_perl_op;
1184		1267
1185	/* copy throw, in case it was set before init_perl */	1268	/* copy throw, in case it was set before init_perl */
1186	CORO_THROW = coro->except;	1269	CORO_THROW = coro->except;
1187		1270
1188	SWAP_SVS (coro);	1271	SWAP_SVS_ENTER (coro);
1189		1272
1190	if (ecb_expect_false (enable_times))	1273	if (ecb_expect_false (enable_times))
1191	{	1274	{
1192	coro_times_update ();	1275	coro_times_update ();
1193	coro_times_sub (coro);	1276	coro_times_sub (coro);
…		…
1231	/* this will cause transfer_check to croak on block*/	1314	/* this will cause transfer_check to croak on block*/
1232	SvRV_set (coro_current, (SV *)coro->hv);	1315	SvRV_set (coro_current, (SV *)coro->hv);
1233		1316
1234	load_perl (aTHX_ coro);	1317	load_perl (aTHX_ coro);
1235		1318
		1319	/* restore swapped sv's */
		1320	SWAP_SVS_LEAVE (coro);
		1321
1236	coro_unwind_stacks (aTHX);	1322	coro_unwind_stacks (aTHX);
1237
1238	/* restore swapped sv's */
1239	SWAP_SVS (coro);
1240		1323
1241	coro_destruct_stacks (aTHX);	1324	coro_destruct_stacks (aTHX);
1242		1325
1243	/* now save some sv's to be free'd later */	1326	/* now save some sv's to be free'd later */
1244	svf [0] = GvSV (PL_defgv);	1327	svf [0] = GvSV (PL_defgv);
…		…
1265		1348
1266	SvREFCNT_dec (coro->saved_deffh);	1349	SvREFCNT_dec (coro->saved_deffh);
1267	SvREFCNT_dec (coro->rouse_cb);	1350	SvREFCNT_dec (coro->rouse_cb);
1268	SvREFCNT_dec (coro->invoke_cb);	1351	SvREFCNT_dec (coro->invoke_cb);
1269	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);
1270	}	1355	}
1271	}	1356	}
1272		1357
1273	ecb_inline void	1358	ecb_inline void
1274	free_coro_mortal (pTHX)	1359	free_coro_mortal (pTHX)
…		…
1315	av_push (av, SvREFCNT_inc_NN (*bot++));	1400	av_push (av, SvREFCNT_inc_NN (*bot++));
1316		1401
1317	PL_runops = RUNOPS_DEFAULT;	1402	PL_runops = RUNOPS_DEFAULT;
1318	ENTER;	1403	ENTER;
1319	SAVETMPS;	1404	SAVETMPS;
		1405	PUSHMARK (SP);
1320	EXTEND (SP, 3);	1406	EXTEND (SP, 3);
1321	PUSHMARK (SP);
1322	PUSHs (&PL_sv_no);	1407	PUSHs (&PL_sv_no);
1323	PUSHs (fullname);	1408	PUSHs (fullname);
1324	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	1409	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
1325	PUTBACK;	1410	PUTBACK;
1326	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);
…		…
1337		1422
1338	if (PL_curcop != &PL_compiling)	1423	if (PL_curcop != &PL_compiling)
1339	{	1424	{
1340	SV **cb;	1425	SV **cb;
1341		1426
1342	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)	1427	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0)
1343	{	1428	{
1344	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1429	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1345		1430
1346	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1431	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1347	{	1432	{
…		…
1353	gv_efullname3 (fullname, gv, 0);	1438	gv_efullname3 (fullname, gv, 0);
1354		1439
1355	PL_runops = RUNOPS_DEFAULT;	1440	PL_runops = RUNOPS_DEFAULT;
1356	ENTER;	1441	ENTER;
1357	SAVETMPS;	1442	SAVETMPS;
		1443	PUSHMARK (SP);
1358	EXTEND (SP, 3);	1444	EXTEND (SP, 3);
1359	PUSHMARK (SP);
1360	PUSHs (&PL_sv_yes);	1445	PUSHs (&PL_sv_yes);
1361	PUSHs (fullname);	1446	PUSHs (fullname);
1362	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);
1363	PUTBACK;	1448	PUTBACK;
1364	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);
1365	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);
1366	SPAGAIN;	1451	SPAGAIN;
1367	FREETMPS;	1452	FREETMPS;
…		…
1377	dSP;	1462	dSP;
1378		1463
1379	PL_runops = RUNOPS_DEFAULT;	1464	PL_runops = RUNOPS_DEFAULT;
1380	ENTER;	1465	ENTER;
1381	SAVETMPS;	1466	SAVETMPS;
1382	EXTEND (SP, 3);
1383	PL_runops = RUNOPS_DEFAULT;
1384	PUSHMARK (SP);	1467	PUSHMARK (SP);
		1468	EXTEND (SP, 2);
1385	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));	1469	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
1386	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));	1470	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
1387	PUTBACK;	1471	PUTBACK;
1388	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);
1389	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);
…		…
1489	* 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
1490	* 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.
1491	*/	1575	*/
1492		1576
1493	/*	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	/*
1494	* 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
1495	* 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)
1496	* reason for perl_run to return. We try to mimic whatever perl is normally	1587	* reason for perl_run to return. We try to mimic whatever perl is normally
1497	* doing in that case. YMMV.	1588	* doing in that case. YMMV.
1498	*/	1589	*/
…		…
1519	static coro_cctx *	1610	static coro_cctx *
1520	cctx_new_empty (void)	1611	cctx_new_empty (void)
1521	{	1612	{
1522	coro_cctx *cctx = cctx_new ();	1613	coro_cctx *cctx = cctx_new ();
1523		1614
1524	cctx->sptr = 0;	1615	cctx->stack.sptr = 0;
1525	coro_create (&cctx->cctx, 0, 0, 0, 0);	1616	coro_create (&cctx->cctx, 0, 0, 0, 0);
1526		1617
1527	return cctx;	1618	return cctx;
1528	}	1619	}
1529		1620
1530	/* create a new cctx suitable as destination/running a perl interpreter */	1621	/* create a new cctx suitable as destination/running a perl interpreter */
1531	static coro_cctx *	1622	static coro_cctx *
1532	cctx_new_run (void)	1623	cctx_new_run (void)
1533	{	1624	{
1534	coro_cctx *cctx = cctx_new ();	1625	coro_cctx *cctx = cctx_new ();
1535	void *stack_start;
1536	size_t stack_size;
1537		1626
1538	#if CORO_FIBER	1627	if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1539
1540	cctx->ssize = cctx_stacksize * sizeof (long);
1541	cctx->sptr = 0;
1542
1543	#else
1544
1545	#if HAVE_MMAP
1546	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1547	/* mmap supposedly does allocate-on-write for us */
1548	cctx->sptr = mmap (0, cctx->ssize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS, -1, 0);
1549
1550	if (cctx->sptr != (void *)-1)
1551	{	1628	{
1552	#if CORO_STACKGUARD
1553	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1554	#endif
1555	stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1556	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1557	cctx->flags |= CC_MAPPED;
1558	}
1559	else
1560	#endif
1561	{
1562	cctx->ssize = cctx_stacksize * (long)sizeof (long);
1563	New (0, cctx->sptr, cctx_stacksize, long);
1564
1565	if (!cctx->sptr)
1566	{
1567	perror ("FATAL: unable to allocate stack for coroutine, exiting.");	1629	perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1568	_exit (EXIT_FAILURE);	1630	_exit (EXIT_FAILURE);
1569	}
1570
1571	stack_start = cctx->sptr;
1572	stack_size = cctx->ssize;
1573	}	1631	}
1574	#endif
1575		1632
1576	#if CORO_USE_VALGRIND
1577	cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1578	#endif
1579
1580	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);
1581		1634
1582	return cctx;	1635	return cctx;
1583	}	1636	}
1584		1637
1585	static void	1638	static void
…		…
1591	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));	1644	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1592		1645
1593	--cctx_count;	1646	--cctx_count;
1594	coro_destroy (&cctx->cctx);	1647	coro_destroy (&cctx->cctx);
1595		1648
1596	/* coro_transfer creates new, empty cctx's */	1649	coro_stack_free (&cctx->stack);
1597	if (cctx->sptr)
1598	{
1599	#if CORO_USE_VALGRIND
1600	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1601	#endif
1602
1603	#if HAVE_MMAP
1604	if (cctx->flags & CC_MAPPED)
1605	munmap (cctx->sptr, cctx->ssize);
1606	else
1607	#endif
1608	Safefree (cctx->sptr);
1609	}
1610		1650
1611	Safefree (cctx);	1651	Safefree (cctx);
1612	}	1652	}
1613		1653
1614	/* wether this cctx should be destructed */	1654	/* wether this cctx should be destructed */
…		…
1633	}	1673	}
1634		1674
1635	static void	1675	static void
1636	cctx_put (coro_cctx *cctx)	1676	cctx_put (coro_cctx *cctx)
1637	{	1677	{
1638	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));
1639		1679
1640	/* free another cctx if overlimit */	1680	/* free another cctx if overlimit */
1641	if (ecb_expect_false (cctx_idle >= cctx_max_idle))	1681	if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1642	{	1682	{
1643	coro_cctx *first = cctx_first;	1683	coro_cctx *first = cctx_first;
…		…
1819		1859
1820	static int ecb_cold	1860	static int ecb_cold
1821	coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)	1861	coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1822	{	1862	{
1823	/* 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) */
1824	/* 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 */
1825	mg->mg_ptr = 0;	1865	mg->mg_ptr = 0;
1826	mg->mg_virtual = 0;	1866	mg->mg_virtual = 0;
1827		1867
1828	return 0;	1868	return 0;
1829	}	1869	}
…		…
1975	/* nothing to schedule: call the idle handler */	2015	/* nothing to schedule: call the idle handler */
1976	if (SvROK (sv_idle)	2016	if (SvROK (sv_idle)
1977	&& SvOBJECT (SvRV (sv_idle)))	2017	&& SvOBJECT (SvRV (sv_idle)))
1978	{	2018	{
1979	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);
1980	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	}
1981		2038
1982	++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 */
1983	api_ready (aTHX_ SvRV (sv_idle));	2040	api_ready (aTHX_ SvRV (sv_idle));
1984	--coro_nready;	2041	--coro_nready;
1985	}	2042	}
…		…
2183	AV *od = coro->on_destroy;	2240	AV *od = coro->on_destroy;
2184		2241
2185	if (!od)	2242	if (!od)
2186	return;	2243	return;
2187		2244
		2245	coro->on_destroy = 0;
		2246	sv_2mortal ((SV *)od);
		2247
2188	while (AvFILLp (od) >= 0)	2248	while (AvFILLp (od) >= 0)
2189	{	2249	{
2190	SV *cb = sv_2mortal (av_pop (od));	2250	SV *cb = sv_2mortal (av_pop (od));
2191		2251
2192	/* coro hv's (and only hv's at the moment) are supported as well */	2252	/* coro hv's (and only hv's at the moment) are supported as well */
…		…
2286	slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);	2346	slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2287	}	2347	}
2288	else	2348	else
2289	{	2349	{
2290	struct coro *self = SvSTATE_current;	2350	struct coro *self = SvSTATE_current;
		2351
		2352	if (!self)
		2353	croak ("Coro::cancel called outside of thread content,");
2291		2354
2292	/* otherwise we cancel directly, purely for speed reasons	2355	/* otherwise we cancel directly, purely for speed reasons
2293	* unfortunately, this requires some magic trickery, as	2356	* unfortunately, this requires some magic trickery, as
2294	* 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.
2295	* this is ugly, and hopefully fully worth the extra speed.	2358	* this is ugly, and hopefully fully worth the extra speed.
…		…
2328	safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)	2391	safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2329	{	2392	{
2330	if (coro->cctx)	2393	if (coro->cctx)
2331	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");
2332		2395
2333	if (coro->flags & CF_NEW)	2396	if (coro->flags & (CF_NEW | CF_ZOMBIE))
2334	{	2397	{
2335	coro_set_status (aTHX_ coro, arg, items);	2398	coro_set_status (aTHX_ coro, arg, items);
2336	coro_state_destroy (aTHX_ coro);	2399	coro_state_destroy (aTHX_ coro);
2337	}	2400	}
2338	else	2401	else
…		…
2405	else	2468	else
2406	{	2469	{
2407	av_clear (GvAV (PL_defgv));	2470	av_clear (GvAV (PL_defgv));
2408	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);
2409		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
2410	coro->prio = 0;	2480	coro->prio = 0;
2411		2481
2412	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2482	if (ecb_expect_false (coro->cctx) && ecb_expect_false (coro->cctx->flags & CC_TRACE))
2413	api_trace (aTHX_ coro_current, 0);	2483	api_trace (aTHX_ coro_current, 0);
2414		2484
2415	frame->prepare = prepare_schedule;	2485	frame->prepare = prepare_schedule;
2416	av_push (av_async_pool, SvREFCNT_inc (hv));	2486	av_push (av_async_pool, SvREFCNT_inc_NN (hv));
2417	}	2487	}
2418	}	2488	}
2419	else	2489	else
2420	{	2490	{
2421	/* first iteration, simply fall through */	2491	/* first iteration, simply fall through */
…		…
2435	coro_rouse_callback (pTHX_ CV *cv)	2505	coro_rouse_callback (pTHX_ CV *cv)
2436	{	2506	{
2437	dXSARGS;	2507	dXSARGS;
2438	SV *data = (SV *)S_GENSUB_ARG;	2508	SV *data = (SV *)S_GENSUB_ARG;
2439		2509
		2510	/* data starts being the coro, and is replaced by the results when done */
2440	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2511	if (SvTYPE (SvRV (data)) != SVt_PVAV)
2441	{	2512	{
2442	/* first call, set args */	2513	/* first call, set args */
2443	SV *coro = SvRV (data);	2514	SV *coro = SvRV (data);
2444	AV *av = newAV ();	2515	AV *av = newAV ();
…		…
2448	/* better take a full copy of the arguments */	2519	/* better take a full copy of the arguments */
2449	while (items--)	2520	while (items--)
2450	av_store (av, items, newSVsv (ST (items)));	2521	av_store (av, items, newSVsv (ST (items)));
2451		2522
2452	api_ready (aTHX_ coro);	2523	api_ready (aTHX_ coro);
2453	SvREFCNT_dec (coro);	2524	SvREFCNT_dec_NN (coro);
2454	}	2525	}
2455		2526
2456	XSRETURN_EMPTY;	2527	XSRETURN_EMPTY;
2457	}	2528	}
2458		2529
…		…
2527	struct coro *coro = SvSTATE_hv (hv);	2598	struct coro *coro = SvSTATE_hv (hv);
2528	SV *data = newRV_inc ((SV *)hv);	2599	SV *data = newRV_inc ((SV *)hv);
2529	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);	2600	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2530		2601
2531	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2602	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2532	SvREFCNT_dec (data); /* magicext increases the refcount */	2603	SvREFCNT_dec_NN (data); /* magicext increases the refcount */
2533		2604
2534	SvREFCNT_dec (coro->rouse_cb);	2605	SvREFCNT_dec (coro->rouse_cb);
2535	coro->rouse_cb = SvREFCNT_inc_NN (cb);	2606	coro->rouse_cb = SvREFCNT_inc_NN (cb);
2536		2607
2537	return cb;	2608	return cb;
…		…
2637		2708
2638	/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */	2709	/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2639	static void	2710	static void
2640	slf_destroy (pTHX_ struct coro *coro)	2711	slf_destroy (pTHX_ struct coro *coro)
2641	{	2712	{
2642	/* this callback is reserved for slf functions needing to do cleanup */	2713	struct CoroSLF frame = coro->slf_frame;
2643	if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2644	coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2645		2714
2646	/*	2715	/*
2647	* The on_destroy above most likely is from an SLF call.	2716	* The on_destroy below most likely is from an SLF call.
2648	* Since by definition the SLF call will not finish when we destroy	2717	* Since by definition the SLF call will not finish when we destroy
2649	* the coro, we will have to force-finish it here, otherwise	2718	* the coro, we will have to force-finish it here, otherwise
2650	* cleanup functions cannot call SLF functions.	2719	* cleanup functions cannot call SLF functions.
2651	*/	2720	*/
2652	coro->slf_frame.prepare = 0;	2721	coro->slf_frame.prepare = 0;
		2722
		2723	/* this callback is reserved for slf functions needing to do cleanup */
		2724	if (frame.destroy && frame.prepare && !PL_dirty)
		2725	frame.destroy (aTHX_ &frame);
2653	}	2726	}
2654		2727
2655	/*	2728	/*
2656	* these not obviously related functions are all rolled into one	2729	* these not obviously related functions are all rolled into one
2657	* function to increase chances that they all will call transfer with the same	2730	* function to increase chances that they all will call transfer with the same
…		…
2840	static void	2913	static void
2841	coro_pop_on_leave (pTHX_ void *coro)	2914	coro_pop_on_leave (pTHX_ void *coro)
2842	{	2915	{
2843	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);	2916	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2844	on_enterleave_call (aTHX_ sv_2mortal (cb));	2917	on_enterleave_call (aTHX_ sv_2mortal (cb));
		2918	}
		2919
		2920	static void
		2921	enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg)
		2922	{
		2923	if (!hook)
		2924	return;
		2925
		2926	if (!*avp)
		2927	{
		2928	*avp = newAV ();
		2929	AvREAL_off (*avp);
		2930	}
		2931
		2932	av_push (*avp, (SV *)hook);
		2933	av_push (*avp, (SV *)arg);
		2934	}
		2935
		2936	static void
		2937	enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute)
		2938	{
		2939	AV *av = *avp;
		2940	int i;
		2941
		2942	if (!av)
		2943	return;
		2944
		2945	for (i = AvFILLp (av) - 1; i >= 0; i -= 2)
		2946	if (AvARRAY (av)[i] == (SV *)hook)
		2947	{
		2948	if (execute)
		2949	hook (aTHX_ (void *)AvARRAY (av)[i + 1]);
		2950
		2951	memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1);
		2952	av_pop (av);
		2953	av_pop (av);
		2954	break;
		2955	}
		2956
		2957	if (AvFILLp (av) >= 0)
		2958	{
		2959	*avp = 0;
		2960	SvREFCNT_dec_NN (av);
		2961	}
		2962	}
		2963
		2964	static void
		2965	api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
		2966	{
		2967	struct coro *coro = SvSTATE (coro_sv);
		2968
		2969	if (SvSTATE_current == coro)
		2970	if (enter)
		2971	enter (aTHX_ enter_arg);
		2972
		2973	enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg);
		2974	enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg);
		2975	}
		2976
		2977	static void
		2978	api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave)
		2979	{
		2980	struct coro *coro = SvSTATE (coro_sv);
		2981
		2982	enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
		2983	enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro);
		2984	}
		2985
		2986	static void
		2987	savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter)
		2988	{
		2989	struct coro *coro = SvSTATE_current;
		2990
		2991	enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0);
		2992	}
		2993
		2994	static void
		2995	savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave)
		2996	{
		2997	struct coro *coro = SvSTATE_current;
		2998
		2999	enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1);
		3000	}
		3001
		3002	static void
		3003	api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg)
		3004	{
		3005	api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg);
		3006
		3007	/* this ought to be much cheaper than malloc + a single destructor call */
		3008	if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter);
		3009	if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave);
2845	}	3010	}
2846		3011
2847	/*****************************************************************************/	3012	/*****************************************************************************/
2848	/* PerlIO::cede */	3013	/* PerlIO::cede */
2849		3014
…		…
2979	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));	3144	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2980	PUTBACK;	3145	PUTBACK;
2981	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);	3146	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2982	}	3147	}
2983		3148
2984	SvREFCNT_dec (cb);	3149	SvREFCNT_dec_NN (cb);
2985	}	3150	}
2986	}	3151	}
2987		3152
2988	static void	3153	static void
2989	coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)	3154	coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
…		…
2997	{	3162	{
2998	AV *av = (AV *)frame->data;	3163	AV *av = (AV *)frame->data;
2999	SV *count_sv = AvARRAY (av)[0];	3164	SV *count_sv = AvARRAY (av)[0];
3000	SV *coro_hv = SvRV (coro_current);	3165	SV *coro_hv = SvRV (coro_current);
3001		3166
		3167	frame->destroy = 0;
		3168
3002	/* if we are about to throw, don't actually acquire the lock, just throw */	3169	/* if we are about to throw, don't actually acquire the lock, just throw */
3003	if (CORO_THROW)	3170	if (ecb_expect_false (CORO_THROW))
		3171	{
		3172	/* we still might be responsible for the semaphore, so wake up others */
		3173	coro_semaphore_adjust (aTHX_ av, 0);
		3174
3004	return 0;	3175	return 0;
		3176	}
3005	else if (SvIVX (count_sv) > 0)	3177	else if (SvIVX (count_sv) > 0)
3006	{	3178	{
3007	frame->destroy = 0;
3008
3009	if (acquire)	3179	if (acquire)
3010	SvIVX (count_sv) = SvIVX (count_sv) - 1;	3180	SvIVX (count_sv) = SvIVX (count_sv) - 1;
3011	else	3181	else
3012	coro_semaphore_adjust (aTHX_ av, 0);	3182	coro_semaphore_adjust (aTHX_ av, 0);
3013		3183
…		…
3124	{	3294	{
3125	api_ready (aTHX_ cb);	3295	api_ready (aTHX_ cb);
3126	sv_setiv (cb, 0); /* signal waiter */	3296	sv_setiv (cb, 0); /* signal waiter */
3127	}	3297	}
3128		3298
3129	SvREFCNT_dec (cb);	3299	SvREFCNT_dec_NN (cb);
3130		3300
3131	--count;	3301	--count;
3132	}	3302	}
3133	}	3303	}
3134		3304
…		…
3219	}	3389	}
3220		3390
3221	av_push (state, data_sv);	3391	av_push (state, data_sv);
3222		3392
3223	api_ready (aTHX_ coro);	3393	api_ready (aTHX_ coro);
3224	SvREFCNT_dec (coro);	3394	SvREFCNT_dec_NN (coro);
3225	SvREFCNT_dec ((AV *)state);	3395	SvREFCNT_dec_NN ((AV *)state);
3226	}	3396	}
3227		3397
3228	static int	3398	static int
3229	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	3399	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
3230	{	3400	{
…		…
3235	/* it quickly returns */	3405	/* it quickly returns */
3236	if (CORO_THROW)	3406	if (CORO_THROW)
3237	return 0;	3407	return 0;
3238		3408
3239	/* one element that is an RV? repeat! */	3409	/* one element that is an RV? repeat! */
3240	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	3410	if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
3241	return 1;	3411	return 1;
3242		3412
3243	/* restore status */	3413	/* restore status */
3244	{	3414	{
3245	SV *data_sv = av_pop (state);	3415	SV *data_sv = av_pop (state);
…		…
3248	errno = data->errorno;	3418	errno = data->errorno;
3249	PL_laststype = data->laststype;	3419	PL_laststype = data->laststype;
3250	PL_laststatval = data->laststatval;	3420	PL_laststatval = data->laststatval;
3251	PL_statcache = data->statcache;	3421	PL_statcache = data->statcache;
3252		3422
3253	SvREFCNT_dec (data_sv);	3423	SvREFCNT_dec_NN (data_sv);
3254	}	3424	}
3255		3425
3256	/* push result values */	3426	/* push result values */
3257	{	3427	{
3258	dSP;	3428	dSP;
…		…
3447		3617
3448	map_len = load_len + save_len + 16;	3618	map_len = load_len + save_len + 16;
3449		3619
3450	map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);	3620	map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3451		3621
		3622	if (map_base == (char *)MAP_FAILED)
		3623	map_base = mmap (0, map_len, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
		3624
3452	assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));	3625	assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3453		3626
3454	load_perl_slots = (load_save_perl_slots_type)map_base;	3627	load_perl_slots = (load_save_perl_slots_type)map_base;
3455	memcpy (map_base, load_ptr, load_len);	3628	memcpy (map_base, load_ptr, load_len);
3456		3629
…		…
3473		3646
3474	PROTOTYPES: DISABLE	3647	PROTOTYPES: DISABLE
3475		3648
3476	BOOT:	3649	BOOT:
3477	{	3650	{
		3651	#define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl.");
		3652	#include "state.h"
3478	#ifdef USE_ITHREADS	3653	#ifdef USE_ITHREADS
3479	# if CORO_PTHREAD	3654	# if CORO_PTHREAD
3480	coro_thx = PERL_GET_CONTEXT;	3655	coro_thx = PERL_GET_CONTEXT;
3481	# endif	3656	# endif
3482	#endif	3657	#endif
3483	BOOT_PAGESIZE;
3484
3485	/* perl defines these to check for existance first, but why it doesn't */	3658	/* perl defines these to check for existance first, but why it doesn't */
3486	/* just create them one at init time is not clear to me, except for */	3659	/* just create them one at init time is not clear to me, except for */
3487	/* programs trying to delete them, but... */	3660	/* programs trying to delete them, but... */
3488	/* anyway, we declare this as invalid and make sure they are initialised here */	3661	/* anyway, we declare this as invalid and make sure they are initialised here */
3489	DEFSV;	3662	DEFSV;
…		…
3492	cctx_current = cctx_new_empty ();	3665	cctx_current = cctx_new_empty ();
3493		3666
3494	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	3667	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
3495	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	3668	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
3496		3669
3497	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	3670	{
3498	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	3671	/*
3499	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;	3672	* we provide a vtbvl for %SIG magic that replaces PL_vtbl_sig
		3673	* by coro_sig_vtbl in hash values.
		3674	*/
		3675	MAGIC *mg = mg_find ((SV *)GvHV (gv_fetchpv ("SIG", GV_ADD | GV_NOTQUAL, SVt_PVHV)), PERL_MAGIC_sig);
		3676
		3677	/* this only works if perl doesn't have a vtbl for %SIG */
		3678	assert (!mg->mg_virtual);
		3679
		3680	/*
		3681	* The irony is that the perl API itself asserts that mg_virtual
		3682	* must be non-const, yet perl5porters insisted on marking their
		3683	* vtbls as read-only, just to thwart perl modules from patching
		3684	* them.
		3685	*/
		3686	mg->mg_virtual = (MGVTBL *)&coro_sig_vtbl;
		3687	mg->mg_flags |= MGf_COPY;
		3688
		3689	coro_sigelem_vtbl = PL_vtbl_sigelem;
		3690	coro_sigelem_vtbl.svt_get = coro_sigelem_get;
		3691	coro_sigelem_vtbl.svt_set = coro_sigelem_set;
		3692	coro_sigelem_vtbl.svt_clear = coro_sigelem_clr;
		3693	}
3500		3694
3501	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
3502	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));	3695	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
3503	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));	3696	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
3504		3697
3505	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	3698	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
		3699
		3700	newCONSTSUB (coro_state_stash, "BACKEND", newSVpv (CORO_BACKEND, 0)); /* undocumented */
3506		3701
3507	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	3702	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
3508	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	3703	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
3509	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));	3704	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
3510	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));	3705	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
…		…
3559	void	3754	void
3560	transfer (...)	3755	transfer (...)
3561	PROTOTYPE: $$	3756	PROTOTYPE: $$
3562	CODE:	3757	CODE:
3563	CORO_EXECUTE_SLF_XS (slf_init_transfer);	3758	CORO_EXECUTE_SLF_XS (slf_init_transfer);
3564
3565	void
3566	_exit (int code)
3567	PROTOTYPE: $
3568	CODE:
3569	_exit (code);
3570		3759
3571	SV *	3760	SV *
3572	clone (Coro::State coro)	3761	clone (Coro::State coro)
3573	CODE:	3762	CODE:
3574	{	3763	{
…		…
3641	call (Coro::State coro, SV *coderef)	3830	call (Coro::State coro, SV *coderef)
3642	ALIAS:	3831	ALIAS:
3643	eval = 1	3832	eval = 1
3644	CODE:	3833	CODE:
3645	{	3834	{
		3835	struct coro *current = SvSTATE_current;
		3836
3646	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3837	if ((coro == current) || (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)))
3647	{	3838	{
3648	struct coro *current = SvSTATE_current;
3649	struct CoroSLF slf_save;	3839	struct CoroSLF slf_save;
3650		3840
3651	if (current != coro)	3841	if (current != coro)
3652	{	3842	{
3653	PUTBACK;	3843	PUTBACK;
…		…
3818	if (ecb_expect_false (current == self))	4008	if (ecb_expect_false (current == self))
3819	coro_times_sub (SvSTATE (coro_current));	4009	coro_times_sub (SvSTATE (coro_current));
3820	}	4010	}
3821		4011
3822	void	4012	void
3823	swap_sv (Coro::State coro, SV *sv, SV *swapsv)	4013	swap_sv (Coro::State coro, SV *sva, SV *svb)
3824	CODE:	4014	CODE:
3825	{	4015	{
3826	struct coro *current = SvSTATE_current;	4016	struct coro *current = SvSTATE_current;
		4017	AV *swap_sv;
		4018	int i;
		4019
		4020	sva = SvRV (sva);
		4021	svb = SvRV (svb);
3827		4022
3828	if (current == coro)	4023	if (current == coro)
3829	SWAP_SVS (current);	4024	SWAP_SVS_LEAVE (current);
3830		4025
3831	if (!coro->swap_sv)	4026	if (!coro->swap_sv)
3832	coro->swap_sv = newAV ();	4027	coro->swap_sv = newAV ();
3833		4028
		4029	swap_sv = coro->swap_sv;
		4030
		4031	for (i = AvFILLp (swap_sv) - 1; i >= 0; i -= 2)
		4032	{
		4033	SV *a = AvARRAY (swap_sv)[i ];
		4034	SV *b = AvARRAY (swap_sv)[i + 1];
		4035
		4036	if (a == sva && b == svb)
		4037	{
		4038	SvREFCNT_dec_NN (a);
		4039	SvREFCNT_dec_NN (b);
		4040
		4041	for (; i <= AvFILLp (swap_sv) - 2; i++)
		4042	AvARRAY (swap_sv)[i] = AvARRAY (swap_sv)[i + 2];
		4043
		4044	AvFILLp (swap_sv) -= 2;
		4045
		4046	goto removed;
		4047	}
		4048	}
		4049
3834	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));	4050	av_push (swap_sv, SvREFCNT_inc_NN (sva));
3835	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));	4051	av_push (swap_sv, SvREFCNT_inc_NN (svb));
		4052
		4053	removed:
3836		4054
3837	if (current == coro)	4055	if (current == coro)
3838	SWAP_SVS (current);	4056	SWAP_SVS_ENTER (current);
3839	}	4057	}
3840		4058
3841		4059
3842	MODULE = Coro::State PACKAGE = Coro	4060	MODULE = Coro::State PACKAGE = Coro
3843		4061
3844	BOOT:	4062	BOOT:
3845	{	4063	{
		4064	if (SVt_LAST > 32)
		4065	croak ("Coro internal error: SVt_LAST > 32, swap_sv might need adjustment");
		4066
3846	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	4067	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3847	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	4068	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3848	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);	4069	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3849	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	4070	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3850	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	4071	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
…		…
3876	coroapi.ready = api_ready;	4097	coroapi.ready = api_ready;
3877	coroapi.is_ready = api_is_ready;	4098	coroapi.is_ready = api_is_ready;
3878	coroapi.nready = coro_nready;	4099	coroapi.nready = coro_nready;
3879	coroapi.current = coro_current;	4100	coroapi.current = coro_current;
3880		4101
		4102	coroapi.enterleave_hook = api_enterleave_hook;
		4103	coroapi.enterleave_unhook = api_enterleave_unhook;
		4104	coroapi.enterleave_scope_hook = api_enterleave_scope_hook;
		4105
3881	/*GCoroAPI = &coroapi;*/	4106	/*GCoroAPI = &coroapi;*/
3882	sv_setiv (sv, (IV)&coroapi);	4107	sv_setiv (sv, PTR2IV (&coroapi));
3883	SvREADONLY_on (sv);	4108	SvREADONLY_on (sv);
3884	}	4109	}
3885	}	4110	}
3886		4111
3887	SV *	4112	SV *
…		…
3950		4175
3951	void	4176	void
3952	_set_current (SV *current)	4177	_set_current (SV *current)
3953	PROTOTYPE: $	4178	PROTOTYPE: $
3954	CODE:	4179	CODE:
3955	SvREFCNT_dec (SvRV (coro_current));	4180	SvREFCNT_dec_NN (SvRV (coro_current));
3956	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));	4181	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
3957		4182
3958	void	4183	void
3959	_set_readyhook (SV *hook)	4184	_set_readyhook (SV *hook)
3960	PROTOTYPE: $	4185	PROTOTYPE: $
…		…
4044		4269
4045	if ((SV *)hv == &PL_sv_undef)	4270	if ((SV *)hv == &PL_sv_undef)
4046	{	4271	{
4047	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);	4272	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
4048	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));	4273	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
4049	SvREFCNT_dec (sv);	4274	SvREFCNT_dec_NN (sv);
4050	}	4275	}
4051		4276
4052	{	4277	{
4053	struct coro *coro = SvSTATE_hv (hv);	4278	struct coro *coro = SvSTATE_hv (hv);
4054		4279
…		…
4061	api_ready (aTHX_ (SV *)hv);	4286	api_ready (aTHX_ (SV *)hv);
4062		4287
4063	if (GIMME_V != G_VOID)	4288	if (GIMME_V != G_VOID)
4064	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));	4289	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
4065	else	4290	else
4066	SvREFCNT_dec (hv);	4291	SvREFCNT_dec_NN (hv);
4067	}	4292	}
4068		4293
4069	SV *	4294	SV *
4070	rouse_cb ()	4295	rouse_cb ()
4071	PROTOTYPE:	4296	PROTOTYPE:
…		…
4150	RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]);	4375	RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]);
4151	OUTPUT:	4376	OUTPUT:
4152	RETVAL	4377	RETVAL
4153		4378
4154	void	4379	void
4155	up (SV *self, int adjust = 1)	4380	up (SV *self)
4156	ALIAS:
4157	adjust = 1
4158	CODE:	4381	CODE:
		4382	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), 1);
		4383
		4384	void
		4385	adjust (SV *self, int adjust)
		4386	CODE:
4159	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	4387	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), adjust);
4160		4388
4161	void	4389	void
4162	down (...)	4390	down (...)
4163	CODE:	4391	CODE:
4164	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	4392	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
…		…
4326	{	4554	{
4327	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;	4555	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4328	coro_old_pp_sselect = 0;	4556	coro_old_pp_sselect = 0;
4329	}	4557	}
4330		4558
		4559	MODULE = Coro::State PACKAGE = Coro::Util
		4560
		4561	void
		4562	_exit (int code)
		4563	CODE:
		4564	_exit (code);
		4565
		4566	NV
		4567	time ()
		4568	CODE:
		4569	RETVAL = nvtime (aTHX);
		4570	OUTPUT:
		4571	RETVAL
		4572
		4573	NV
		4574	gettimeofday ()
		4575	PPCODE:
		4576	{
		4577	UV tv [2];
		4578	u2time (aTHX_ tv);
		4579	EXTEND (SP, 2);
		4580	PUSHs (sv_2mortal (newSVuv (tv [0])));
		4581	PUSHs (sv_2mortal (newSVuv (tv [1])));
		4582	}
		4583

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