[ViewVC] Diff of: cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.214 by root, Sat Oct 13 23:19:10 2007 UTC vs.
Revision 1.268 by root, Fri Nov 14 06:41:41 2008 UTC

…		…
4	#define PERL_EXT	4	#define PERL_EXT
5		5
6	#include "EXTERN.h"	6	#include "EXTERN.h"
7	#include "perl.h"	7	#include "perl.h"
8	#include "XSUB.h"	8	#include "XSUB.h"
		9	#include "perliol.h"
9		10
10	#include "patchlevel.h"	11	#include "patchlevel.h"
11		12
12	#include <stdio.h>	13	#include <stdio.h>
13	#include <errno.h>	14	#include <errno.h>
14	#include <assert.h>	15	#include <assert.h>
		16
		17	#ifdef WIN32
		18	# undef setjmp
		19	# undef longjmp
		20	# undef _exit
		21	# define setjmp _setjmp // deep magic, don't ask
		22	#else
15	#include <inttypes.h> /* portable stdint.h */	23	# include <inttypes.h> /* most portable stdint.h */
		24	#endif
16		25
17	#ifdef HAVE_MMAP	26	#ifdef HAVE_MMAP
18	# include <unistd.h>	27	# include <unistd.h>
19	# include <sys/mman.h>	28	# include <sys/mman.h>
20	# ifndef MAP_ANONYMOUS	29	# ifndef MAP_ANONYMOUS
…		…
37	# define BOOT_PAGESIZE (void)0	46	# define BOOT_PAGESIZE (void)0
38	#endif	47	#endif
39		48
40	#if CORO_USE_VALGRIND	49	#if CORO_USE_VALGRIND
41	# include <valgrind/valgrind.h>	50	# include <valgrind/valgrind.h>
42	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
43	#else
44	# define REGISTER_STACK(cctx,start,end)
45	#endif	51	#endif
46		52
47	/* the maximum number of idle cctx that will be pooled */	53	/* the maximum number of idle cctx that will be pooled */
48	#define MAX_IDLE_CCTX 8	54	static int cctx_max_idle = 4;
49		55
50	#define PERL_VERSION_ATLEAST(a,b,c) \	56	#define PERL_VERSION_ATLEAST(a,b,c) \
51	(PERL_REVISION > (a) \	57	(PERL_REVISION > (a) \
52	\|\| (PERL_REVISION == (a) \	58	\|\| (PERL_REVISION == (a) \
53	&& (PERL_VERSION > (b) \	59	&& (PERL_VERSION > (b) \
…		…
72	# ifndef IS_PADCONST	78	# ifndef IS_PADCONST
73	# define IS_PADCONST(v) 0	79	# define IS_PADCONST(v) 0
74	# endif	80	# endif
75	#endif	81	#endif
76		82
		83	/* 5.11 */
		84	#ifndef CxHASARGS
		85	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		86	#endif
		87
		88	/* 5.10.0 */
		89	#ifndef SvREFCNT_inc_NN
		90	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
		91	#endif
		92
		93	/* 5.8.8 */
		94	#ifndef GV_NOTQUAL
		95	# define GV_NOTQUAL 0
		96	#endif
		97	#ifndef newSV
		98	# define newSV(l) NEWSV(0,l)
		99	#endif
		100
77	/* 5.8.7 */	101	/* 5.8.7 */
78	#ifndef SvRV_set	102	#ifndef SvRV_set
79	# define SvRV_set(s,v) SvRV(s) = (v)	103	# define SvRV_set(s,v) SvRV(s) = (v)
80	#endif	104	#endif
81		105
82	/* 5.8.8 */
83	#ifndef GV_NOTQUAL
84	# define GV_NOTQUAL 0
85	#endif
86	#ifndef newSV
87	# define newSV(l) NEWSV(0,l)
88	#endif
89
90	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	106	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
91	# undef CORO_STACKGUARD	107	# undef CORO_STACKGUARD
92	#endif	108	#endif
93		109
94	#ifndef CORO_STACKGUARD	110	#ifndef CORO_STACKGUARD
…		…
100	# define CORO_PREFER_PERL_FUNCTIONS 0	116	# define CORO_PREFER_PERL_FUNCTIONS 0
101	#endif	117	#endif
102		118
103	/* The next macros try to return the current stack pointer, in an as	119	/* The next macros try to return the current stack pointer, in an as
104	* portable way as possible. */	120	* portable way as possible. */
105	#define dSTACKLEVEL volatile char stacklevel	121	#if __GNUC__ >= 4
106	#define STACKLEVEL ((void *)&stacklevel)	122	# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0)
		123	#else
		124	# define dSTACKLEVEL volatile void stacklevel = (volatile void )&stacklevel
		125	#endif
107		126
108	#define IN_DESTRUCT (PL_main_cv == Nullcv)	127	#define IN_DESTRUCT (PL_main_cv == Nullcv)
109		128
110	#if __GNUC__ >= 3	129	#if __GNUC__ >= 3
111	# define attribute(x) __attribute__(x)	130	# define attribute(x) __attribute__(x)
112	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
113	# define expect(expr,value) __builtin_expect ((expr),(value))	131	# define expect(expr,value) __builtin_expect ((expr),(value))
		132	# define INLINE static inline
114	#else	133	#else
115	# define attribute(x)	134	# define attribute(x)
116	# define BARRIER
117	# define expect(expr,value) (expr)	135	# define expect(expr,value) (expr)
		136	# define INLINE static
118	#endif	137	#endif
119		138
120	#define expect_false(expr) expect ((expr) != 0, 0)	139	#define expect_false(expr) expect ((expr) != 0, 0)
121	#define expect_true(expr) expect ((expr) != 0, 1)	140	#define expect_true(expr) expect ((expr) != 0, 1)
122		141
123	#define NOINLINE attribute ((noinline))	142	#define NOINLINE attribute ((noinline))
124		143
125	#include "CoroAPI.h"	144	#include "CoroAPI.h"
126		145
127	#ifdef USE_ITHREADS	146	#ifdef USE_ITHREADS
		147
128	static perl_mutex coro_mutex;	148	static perl_mutex coro_lock;
129	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	149	# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
130	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	150	# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0)
		151	# if CORO_PTHREAD
		152	static void *coro_thx;
		153	# endif
		154
131	#else	155	#else
		156
132	# define LOCK (void)0	157	# define LOCK (void)0
133	# define UNLOCK (void)0	158	# define UNLOCK (void)0
		159
134	#endif	160	#endif
		161
		162	# undef LOCK
		163	# define LOCK (void)0
		164	# undef UNLOCK
		165	# define UNLOCK (void)0
135		166
136	/* helper storage struct for Coro::AIO */	167	/* helper storage struct for Coro::AIO */
137	struct io_state	168	struct io_state
138	{	169	{
		170	AV *res;
139	int errorno;	171	int errorno;
140	I32 laststype;	172	I32 laststype; /* U16 in 5.10.0 */
141	int laststatval;	173	int laststatval;
142	Stat_t statcache;	174	Stat_t statcache;
143	};	175	};
144		176
		177	static double (nvtime)(); / so why doesn't it take void? */
		178
		179	static U32 cctx_gen;
145	static size_t coro_stacksize = CORO_STACKSIZE;	180	static size_t cctx_stacksize = CORO_STACKSIZE;
146	static struct CoroAPI coroapi;	181	static struct CoroAPI coroapi;
147	static AV main_mainstack; / used to differentiate between $main and others */	182	static AV main_mainstack; / used to differentiate between $main and others */
148	static JMPENV *main_top_env;	183	static JMPENV *main_top_env;
149	static HV coro_state_stash, coro_stash;	184	static HV coro_state_stash, coro_stash;
150	static SV coro_mortal; / will be freed after next transfer */	185	static volatile SV coro_mortal; / will be freed/thrown after next transfer */
		186	static volatile struct coro *transfer_next;
		187
		188	struct transfer_args
		189	{
		190	struct coro prev, next;
		191	};
151		192
152	static GV irsgv; / $/ */	193	static GV irsgv; / $/ */
153	static GV stdoutgv; / STDOUT /	194	static GV stdoutgv; / STDOUT /
154	static SV *rv_diehook;	195	static SV *rv_diehook;
155	static SV *rv_warnhook;	196	static SV *rv_warnhook;
…		…
157		198
158	/* async_pool helper stuff */	199	/* async_pool helper stuff */
159	static SV *sv_pool_rss;	200	static SV *sv_pool_rss;
160	static SV *sv_pool_size;	201	static SV *sv_pool_size;
161	static AV *av_async_pool;	202	static AV *av_async_pool;
		203
		204	/* Coro::AnyEvent */
		205	static SV *sv_activity;
162		206
163	static struct coro_cctx *cctx_first;	207	static struct coro_cctx *cctx_first;
164	static int cctx_count, cctx_idle;	208	static int cctx_count, cctx_idle;
165		209
166	enum {	210	enum {
…		…
184	void idle_sp; / sp of top-level transfer/schedule/cede call */	228	void idle_sp; / sp of top-level transfer/schedule/cede call */
185	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */	229	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
186	JMPENV *top_env;	230	JMPENV *top_env;
187	coro_context cctx;	231	coro_context cctx;
188		232
		233	U32 gen;
189	#if CORO_USE_VALGRIND	234	#if CORO_USE_VALGRIND
190	int valgrind_id;	235	int valgrind_id;
191	#endif	236	#endif
192	unsigned char flags;	237	unsigned char flags;
193	} coro_cctx;	238	} coro_cctx;
…		…
252	#define PRIO_IDLE -3	297	#define PRIO_IDLE -3
253	#define PRIO_MIN -4	298	#define PRIO_MIN -4
254		299
255	/* for Coro.pm */	300	/* for Coro.pm */
256	static SV *coro_current;	301	static SV *coro_current;
		302	static SV *coro_readyhook;
257	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	303	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
258	static int coro_nready;	304	static int coro_nready;
259	static struct coro *coro_first;	305	static struct coro *coro_first;
260		306
261	/ lowlevel stuff ********************************************************/	307	/ lowlevel stuff ********************************************************/
262		308
263	static SV *	309	static SV *
264	coro_get_sv (pTHX_ const char *name, int create)	310	coro_get_sv (pTHX_ const char *name, int create)
265	{	311	{
266	#if PERL_VERSION_ATLEAST (5,9,0)	312	#if PERL_VERSION_ATLEAST (5,10,0)
267	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	313	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
268	get_sv (name, create);	314	get_sv (name, create);
269	#endif	315	#endif
270	return get_sv (name, create);	316	return get_sv (name, create);
271	}	317	}
272		318
273	static AV *	319	static AV *
274	coro_get_av (pTHX_ const char *name, int create)	320	coro_get_av (pTHX_ const char *name, int create)
275	{	321	{
276	#if PERL_VERSION_ATLEAST (5,9,0)	322	#if PERL_VERSION_ATLEAST (5,10,0)
277	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	323	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
278	get_av (name, create);	324	get_av (name, create);
279	#endif	325	#endif
280	return get_av (name, create);	326	return get_av (name, create);
281	}	327	}
282		328
283	static HV *	329	static HV *
284	coro_get_hv (pTHX_ const char *name, int create)	330	coro_get_hv (pTHX_ const char *name, int create)
285	{	331	{
286	#if PERL_VERSION_ATLEAST (5,9,0)	332	#if PERL_VERSION_ATLEAST (5,10,0)
287	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	333	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
288	get_hv (name, create);	334	get_hv (name, create);
289	#endif	335	#endif
290	return get_hv (name, create);	336	return get_hv (name, create);
291	}	337	}
…		…
296	AV *padlist = CvPADLIST (cv);	342	AV *padlist = CvPADLIST (cv);
297	AV newpadlist, newpad;	343	AV newpadlist, newpad;
298		344
299	newpadlist = newAV ();	345	newpadlist = newAV ();
300	AvREAL_off (newpadlist);	346	AvREAL_off (newpadlist);
301	#if PERL_VERSION_ATLEAST (5,9,0)	347	#if PERL_VERSION_ATLEAST (5,10,0)
302	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	348	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
303	#else	349	#else
304	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	350	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
305	#endif	351	#endif
306	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	352	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
307	--AvFILLp (padlist);	353	--AvFILLp (padlist);
308		354
309	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	355	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
310	av_store (newpadlist, 1, (SV *)newpad);	356	av_store (newpadlist, 1, (SV *)newpad);
311		357
312	return newpadlist;	358	return newpadlist;
313	}	359	}
314		360
…		…
344		390
345	/* casting is fun. */	391	/* casting is fun. */
346	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	392	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
347	free_padlist (aTHX_ padlist);	393	free_padlist (aTHX_ padlist);
348		394
		395	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
		396
349	return 0;	397	return 0;
350	}	398	}
351		399
352	#define CORO_MAGIC_type_cv PERL_MAGIC_ext	400	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
353	#define CORO_MAGIC_type_state PERL_MAGIC_ext	401	#define CORO_MAGIC_type_state PERL_MAGIC_ext
…		…
355	static MGVTBL coro_cv_vtbl = {	403	static MGVTBL coro_cv_vtbl = {
356	0, 0, 0, 0,	404	0, 0, 0, 0,
357	coro_cv_free	405	coro_cv_free
358	};	406	};
359		407
360	#define CORO_MAGIC(sv,type) \	408	#define CORO_MAGIC(sv, type) \
361	SvMAGIC (sv) \	409	SvMAGIC (sv) \
362	? SvMAGIC (sv)->mg_type == type \	410	? SvMAGIC (sv)->mg_type == type \
363	? SvMAGIC (sv) \	411	? SvMAGIC (sv) \
364	: mg_find (sv, type) \	412	: mg_find (sv, type) \
365	: 0	413	: 0
366		414
367	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)	415	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
368	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)	416	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
369		417
370	static struct coro *	418	INLINE struct coro *
371	SvSTATE_ (pTHX_ SV *coro)	419	SvSTATE_ (pTHX_ SV *coro)
372	{	420	{
373	HV *stash;	421	HV *stash;
374	MAGIC *mg;	422	MAGIC *mg;
375		423
…		…
403	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	451	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
404	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	452	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
405	else	453	else
406	{	454	{
407	#if CORO_PREFER_PERL_FUNCTIONS	455	#if CORO_PREFER_PERL_FUNCTIONS
408	/* this is probably cleaner, but also slower? */	456	/* this is probably cleaner? but also slower! */
		457	/* in practise, it seems to be less stable */
409	CV *cp = Perl_cv_clone (cv);	458	CV *cp = Perl_cv_clone (cv);
410	CvPADLIST (cv) = CvPADLIST (cp);	459	CvPADLIST (cv) = CvPADLIST (cp);
411	CvPADLIST (cp) = 0;	460	CvPADLIST (cp) = 0;
412	SvREFCNT_dec (cp);	461	SvREFCNT_dec (cp);
413	#else	462	#else
…		…
497		546
498	if (expect_true (CvDEPTH (cv)))	547	if (expect_true (CvDEPTH (cv)))
499	{	548	{
500	EXTEND (SP, 3);	549	EXTEND (SP, 3);
501	PUSHs ((SV *)CvPADLIST (cv));	550	PUSHs ((SV *)CvPADLIST (cv));
502	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	551	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
503	PUSHs ((SV *)cv);	552	PUSHs ((SV *)cv);
504		553
505	CvDEPTH (cv) = 0;	554	CvDEPTH (cv) = 0;
506	get_padlist (aTHX_ cv);	555	get_padlist (aTHX_ cv);
507	}	556	}
…		…
587		636
588	New(54,PL_savestack,24,ANY);	637	New(54,PL_savestack,24,ANY);
589	PL_savestack_ix = 0;	638	PL_savestack_ix = 0;
590	PL_savestack_max = 24;	639	PL_savestack_max = 24;
591		640
592	#if !PERL_VERSION_ATLEAST (5,9,0)	641	#if !PERL_VERSION_ATLEAST (5,10,0)
593	New(54,PL_retstack,4,OP*);	642	New(54,PL_retstack,4,OP*);
594	PL_retstack_ix = 0;	643	PL_retstack_ix = 0;
595	PL_retstack_max = 4;	644	PL_retstack_max = 4;
596	#endif	645	#endif
597	}	646	}
…		…
599		648
600	/*	649	/*
601	* destroy the stacks, the callchain etc...	650	* destroy the stacks, the callchain etc...
602	*/	651	*/
603	static void	652	static void
604	coro_destroy_stacks (pTHX)	653	coro_destruct_stacks (pTHX)
605	{	654	{
606	while (PL_curstackinfo->si_next)	655	while (PL_curstackinfo->si_next)
607	PL_curstackinfo = PL_curstackinfo->si_next;	656	PL_curstackinfo = PL_curstackinfo->si_next;
608		657
609	while (PL_curstackinfo)	658	while (PL_curstackinfo)
…		…
620		669
621	Safefree (PL_tmps_stack);	670	Safefree (PL_tmps_stack);
622	Safefree (PL_markstack);	671	Safefree (PL_markstack);
623	Safefree (PL_scopestack);	672	Safefree (PL_scopestack);
624	Safefree (PL_savestack);	673	Safefree (PL_savestack);
625	#if !PERL_VERSION_ATLEAST (5,9,0)	674	#if !PERL_VERSION_ATLEAST (5,10,0)
626	Safefree (PL_retstack);	675	Safefree (PL_retstack);
627	#endif	676	#endif
628	}	677	}
629		678
630	static size_t	679	static size_t
…		…
646	#undef VAR	695	#undef VAR
647	}	696	}
648	else	697	else
649	slot = coro->slot;	698	slot = coro->slot;
650		699
		700	if (slot)
		701	{
651	rss += sizeof (slot->curstackinfo);	702	rss += sizeof (slot->curstackinfo);
652	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	703	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
653	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	704	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
654	rss += slot->tmps_max * sizeof (SV *);	705	rss += slot->tmps_max * sizeof (SV *);
655	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	706	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
656	rss += slot->scopestack_max * sizeof (I32);	707	rss += slot->scopestack_max * sizeof (I32);
657	rss += slot->savestack_max * sizeof (ANY);	708	rss += slot->savestack_max * sizeof (ANY);
658		709
659	#if !PERL_VERSION_ATLEAST (5,9,0)	710	#if !PERL_VERSION_ATLEAST (5,10,0)
660	rss += slot->retstack_max * sizeof (OP *);	711	rss += slot->retstack_max * sizeof (OP *);
661	#endif	712	#endif
		713	}
662	}	714	}
663		715
664	return rss;	716	return rss;
665	}	717	}
666		718
		719	/ set stacklevel support ************************************************/
		720
		721	/* we sometimes need to create the effect of pp_set_stacklevel calling us */
		722	#define SSL_HEAD (void)0
		723	/* we sometimes need to create the effect of leaving via pp_set_stacklevel */
		724	#define SSL_TAIL set_stacklevel_tail (aTHX)
		725
		726	INLINE void
		727	set_stacklevel_tail (pTHX)
		728	{
		729	dSP;
		730	SV **bot = SP;
		731
		732	int gimme = GIMME_V;
		733
		734	/* make sure we put something on the stack in scalar context */
		735	if (gimme == G_SCALAR)
		736	{
		737	if (sp == bot)
		738	XPUSHs (&PL_sv_undef);
		739
		740	SP = bot + 1;
		741	}
		742
		743	PUTBACK;
		744	}
		745
667	/ coroutine stack handling **********************************************/	746	/ coroutine stack handling **********************************************/
668		747
669	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);	748	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		749	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		750	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		751
		752	/* apparently < 5.8.8 */
		753	#ifndef MgPV_nolen_const
		754	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		755	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		756	(const char*)(mg)->mg_ptr)
		757	#endif
670		758
671	/*	759	/*
672	* This overrides the default magic get method of %SIG elements.	760	* This overrides the default magic get method of %SIG elements.
673	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	761	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
674	* and instead of tryign to save and restore the hash elements, we just provide	762	* and instead of tryign to save and restore the hash elements, we just provide
…		…
682	{	770	{
683	const char *s = MgPV_nolen_const (mg);	771	const char *s = MgPV_nolen_const (mg);
684		772
685	if (*s == '_')	773	if (*s == '_')
686	{	774	{
687	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;	775	SV **svp = 0;
688	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;	776
		777	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		778	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		779
		780	if (svp)
		781	{
		782	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		783	return 0;
		784	}
		785	}
		786
		787	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		788	}
		789
		790	static int
		791	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		792	{
		793	const char *s = MgPV_nolen_const (mg);
		794
		795	if (*s == '_')
689	}	796	{
		797	SV **svp = 0;
690		798
		799	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		800	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		801
		802	if (svp)
		803	{
		804	SV old = svp;
		805	*svp = 0;
		806	SvREFCNT_dec (old);
		807	return 0;
		808	}
		809	}
		810
		811	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		812	}
		813
		814	static int
		815	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		816	{
		817	const char *s = MgPV_nolen_const (mg);
		818
		819	if (*s == '_')
		820	{
		821	SV **svp = 0;
		822
		823	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		824	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		825
		826	if (svp)
		827	{
		828	SV old = svp;
		829	*svp = newSVsv (sv);
		830	SvREFCNT_dec (old);
		831	return 0;
		832	}
		833	}
		834
691	return orig_sigelem_get (aTHX_ sv, mg);	835	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
692	}	836	}
693		837
694	static void	838	static void
695	coro_setup (pTHX_ struct coro *coro)	839	coro_setup (pTHX_ struct coro *coro)
696	{	840	{
…		…
706	PL_curpm = 0;	850	PL_curpm = 0;
707	PL_curpad = 0;	851	PL_curpad = 0;
708	PL_localizing = 0;	852	PL_localizing = 0;
709	PL_dirty = 0;	853	PL_dirty = 0;
710	PL_restartop = 0;	854	PL_restartop = 0;
		855	#if PERL_VERSION_ATLEAST (5,10,0)
		856	PL_parser = 0;
		857	#endif
711		858
712	/* recreate the die/warn hooks */	859	/* recreate the die/warn hooks */
713	PL_diehook = 0;	860	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
714	hv_store (hv_sig, "__DIE__", sizeof ("__DIE__") - 1, newSV (0), 0);	861	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
715	PL_diehook = SvREFCNT_inc (rv_diehook);
716
717	PL_warnhook = 0;
718	hv_store (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, newSV (0), 0);
719	PL_warnhook = SvREFCNT_inc (rv_warnhook);
720		862
721	GvSV (PL_defgv) = newSV (0);	863	GvSV (PL_defgv) = newSV (0);
722	GvAV (PL_defgv) = coro->args; coro->args = 0;	864	GvAV (PL_defgv) = coro->args; coro->args = 0;
723	GvSV (PL_errgv) = newSV (0);	865	GvSV (PL_errgv) = newSV (0);
724	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	866	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
725	PL_rs = newSVsv (GvSV (irsgv));	867	PL_rs = newSVsv (GvSV (irsgv));
726	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);	868	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
727		869
728	{	870	{
729	dSP;	871	dSP;
730	LOGOP myop;	872	UNOP myop;
731		873
732	Zero (&myop, 1, LOGOP);	874	Zero (&myop, 1, UNOP);
733	myop.op_next = Nullop;	875	myop.op_next = Nullop;
734	myop.op_flags = OPf_WANT_VOID;	876	myop.op_flags = OPf_WANT_VOID;
735		877
736	PUSHMARK (SP);	878	PUSHMARK (SP);
737	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	879	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
…		…
740	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	882	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
741	SPAGAIN;	883	SPAGAIN;
742	}	884	}
743		885
744	/* this newly created coroutine might be run on an existing cctx which most	886	/* this newly created coroutine might be run on an existing cctx which most
745	* likely was suspended in set_stacklevel, called from entersub.	887	* likely was suspended in set_stacklevel, called from pp_set_stacklevel,
746	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,	888	* so we have to emulate entering pp_set_stacklevel here.
747	* so we ENTER here for symmetry
748	*/	889	*/
749	ENTER;	890	SSL_HEAD;
750	}	891	}
751		892
752	static void	893	static void
753	coro_destroy (pTHX_ struct coro *coro)	894	coro_destruct (pTHX_ struct coro *coro)
754	{	895	{
755	if (!IN_DESTRUCT)	896	if (!IN_DESTRUCT)
756	{	897	{
757	/* restore all saved variables and stuff */	898	/* restore all saved variables and stuff */
758	LEAVE_SCOPE (0);	899	LEAVE_SCOPE (0);
…		…
780	SvREFCNT_dec (PL_warnhook);	921	SvREFCNT_dec (PL_warnhook);
781		922
782	SvREFCNT_dec (coro->saved_deffh);	923	SvREFCNT_dec (coro->saved_deffh);
783	SvREFCNT_dec (coro->throw);	924	SvREFCNT_dec (coro->throw);
784		925
785	coro_destroy_stacks (aTHX);	926	coro_destruct_stacks (aTHX);
786	}	927	}
787		928
788	static void	929	INLINE void
789	free_coro_mortal (pTHX)	930	free_coro_mortal (pTHX)
790	{	931	{
791	if (expect_true (coro_mortal))	932	if (expect_true (coro_mortal))
792	{	933	{
793	SvREFCNT_dec (coro_mortal);	934	SvREFCNT_dec (coro_mortal);
…		…
827	: cx->blk_gimme == G_SCALAR ? bot + 1	968	: cx->blk_gimme == G_SCALAR ? bot + 1
828	: bot;	969	: bot;
829		970
830	av_extend (av, top - bot);	971	av_extend (av, top - bot);
831	while (bot < top)	972	while (bot < top)
832	av_push (av, SvREFCNT_inc (*bot++));	973	av_push (av, SvREFCNT_inc_NN (*bot++));
833		974
834	PL_runops = RUNOPS_DEFAULT;	975	PL_runops = RUNOPS_DEFAULT;
835	ENTER;	976	ENTER;
836	SAVETMPS;	977	SAVETMPS;
837	EXTEND (SP, 3);	978	EXTEND (SP, 3);
…		…
875	SAVETMPS;	1016	SAVETMPS;
876	EXTEND (SP, 3);	1017	EXTEND (SP, 3);
877	PUSHMARK (SP);	1018	PUSHMARK (SP);
878	PUSHs (&PL_sv_yes);	1019	PUSHs (&PL_sv_yes);
879	PUSHs (fullname);	1020	PUSHs (fullname);
880	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1021	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
881	PUTBACK;	1022	PUTBACK;
882	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1023	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
883	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1024	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
884	SPAGAIN;	1025	SPAGAIN;
885	FREETMPS;	1026	FREETMPS;
…		…
917		1058
918	TAINT_NOT;	1059	TAINT_NOT;
919	return 0;	1060	return 0;
920	}	1061	}
921		1062
		1063	static void
		1064	prepare_set_stacklevel (struct transfer_args ta, struct coro_cctx cctx)
		1065	{
		1066	ta->prev = (struct coro *)cctx;
		1067	ta->next = 0;
		1068	}
		1069
922	/* inject a fake call to Coro::State::_cctx_init into the execution */	1070	/* inject a fake call to Coro::State::_cctx_init into the execution */
923	/* _cctx_init should be careful, as it could be called at almost any time */	1071	/* _cctx_init should be careful, as it could be called at almost any time */
924	/* during execution of a perl program */	1072	/* during execution of a perl program */
		1073	/* also initialises PL_top_env */
925	static void NOINLINE	1074	static void NOINLINE
926	cctx_prepare (pTHX_ coro_cctx *cctx)	1075	cctx_prepare (pTHX_ coro_cctx *cctx)
927	{	1076	{
928	dSP;	1077	dSP;
929	LOGOP myop;	1078	UNOP myop;
930		1079
931	PL_top_env = &PL_start_env;	1080	PL_top_env = &PL_start_env;
932		1081
933	if (cctx->flags & CC_TRACE)	1082	if (cctx->flags & CC_TRACE)
934	PL_runops = runops_trace;	1083	PL_runops = runops_trace;
935		1084
936	Zero (&myop, 1, LOGOP);	1085	Zero (&myop, 1, UNOP);
937	myop.op_next = PL_op;	1086	myop.op_next = PL_op;
938	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	1087	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
939		1088
940	PUSHMARK (SP);	1089	PUSHMARK (SP);
941	EXTEND (SP, 2);	1090	EXTEND (SP, 2);
942	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));	1091	PUSHs (sv_2mortal (newSViv ((IV)cctx)));
943	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	1092	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
944	PUTBACK;	1093	PUTBACK;
945	PL_op = (OP *)&myop;	1094	PL_op = (OP *)&myop;
946	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	1095	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
947	SPAGAIN;	1096	SPAGAIN;
948	}	1097	}
949		1098
		1099	/* the tail of transfer: execute stuff we can only do after a transfer */
		1100	INLINE void
		1101	transfer_tail (pTHX)
		1102	{
		1103	struct coro next = (struct coro )transfer_next;
		1104	assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
		1105	assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
		1106
		1107	free_coro_mortal (aTHX);
		1108	UNLOCK;
		1109
		1110	if (expect_false (next->throw))
		1111	{
		1112	SV *exception = sv_2mortal (next->throw);
		1113
		1114	next->throw = 0;
		1115	sv_setsv (ERRSV, exception);
		1116	croak (0);
		1117	}
		1118	}
		1119
950	/*	1120	/*
951	* this is a _very_ stripped down perl interpreter ;)	1121	* this is a _very_ stripped down perl interpreter ;)
952	*/	1122	*/
953	static void	1123	static void
954	cctx_run (void *arg)	1124	cctx_run (void *arg)
955	{	1125	{
		1126	#ifdef USE_ITHREADS
		1127	# if CORO_PTHREAD
		1128	PERL_SET_CONTEXT (coro_thx);
		1129	# endif
		1130	#endif
		1131	{
956	dTHX;	1132	dTHX;
957		1133
958	/* cctx_run is the alternative tail of transfer(), so unlock here. */	1134	/* we are the alternative tail to pp_set_stacklevel */
959	UNLOCK;	1135	/* so do the same things here */
		1136	SSL_TAIL;
960		1137
961	/* we now skip the entersub that lead to transfer() */	1138	/* we now skip the op that did lead to transfer() */
962	PL_op = PL_op->op_next;	1139	PL_op = PL_op->op_next;
963		1140
964	/* inject a fake subroutine call to cctx_init */	1141	/* inject a fake subroutine call to cctx_init */
965	cctx_prepare (aTHX_ (coro_cctx *)arg);	1142	cctx_prepare (aTHX_ (coro_cctx *)arg);
966		1143
		1144	/* cctx_run is the alternative tail of transfer() */
		1145	transfer_tail (aTHX);
		1146
967	/* somebody or something will hit me for both perl_run and PL_restartop */	1147	/* somebody or something will hit me for both perl_run and PL_restartop */
968	PL_restartop = PL_op;	1148	PL_restartop = PL_op;
969	perl_run (PL_curinterp);	1149	perl_run (PL_curinterp);
970		1150
971	/*	1151	/*
972	* If perl-run returns we assume exit() was being called or the coro	1152	* If perl-run returns we assume exit() was being called or the coro
973	* fell off the end, which seems to be the only valid (non-bug)	1153	* fell off the end, which seems to be the only valid (non-bug)
974	* reason for perl_run to return. We try to exit by jumping to the	1154	* reason for perl_run to return. We try to exit by jumping to the
975	* bootstrap-time "top" top_env, as we cannot restore the "main"	1155	* bootstrap-time "top" top_env, as we cannot restore the "main"
976	* coroutine as Coro has no such concept	1156	* coroutine as Coro has no such concept
977	*/	1157	*/
978	PL_top_env = main_top_env;	1158	PL_top_env = main_top_env;
979	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1159	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
		1160	}
980	}	1161	}
981		1162
982	static coro_cctx *	1163	static coro_cctx *
983	cctx_new ()	1164	cctx_new ()
984	{	1165	{
985	coro_cctx *cctx;	1166	coro_cctx *cctx;
		1167
		1168	++cctx_count;
		1169	New (0, cctx, 1, coro_cctx);
		1170
		1171	cctx->gen = cctx_gen;
		1172	cctx->flags = 0;
		1173	cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
		1174
		1175	return cctx;
		1176	}
		1177
		1178	/* create a new cctx only suitable as source */
		1179	static coro_cctx *
		1180	cctx_new_empty ()
		1181	{
		1182	coro_cctx *cctx = cctx_new ();
		1183
		1184	cctx->sptr = 0;
		1185	coro_create (&cctx->cctx, 0, 0, 0, 0);
		1186
		1187	return cctx;
		1188	}
		1189
		1190	/* create a new cctx suitable as destination/running a perl interpreter */
		1191	static coro_cctx *
		1192	cctx_new_run ()
		1193	{
		1194	coro_cctx *cctx = cctx_new ();
986	void *stack_start;	1195	void *stack_start;
987	size_t stack_size;	1196	size_t stack_size;
988		1197
989	++cctx_count;
990
991	Newz (0, cctx, 1, coro_cctx);
992
993	#if HAVE_MMAP	1198	#if HAVE_MMAP
994	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1199	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
995	/* mmap supposedly does allocate-on-write for us */	1200	/* mmap supposedly does allocate-on-write for us */
996	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1201	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
997		1202
998	if (cctx->sptr != (void *)-1)	1203	if (cctx->sptr != (void *)-1)
999	{	1204	{
1000	# if CORO_STACKGUARD	1205	#if CORO_STACKGUARD
1001	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	1206	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1002	# endif	1207	#endif
1003	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	1208	stack_start = (char )cctx->sptr + CORO_STACKGUARD PAGESIZE;
1004	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	1209	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1005	cctx->flags \|= CC_MAPPED;	1210	cctx->flags \|= CC_MAPPED;
1006	}	1211	}
1007	else	1212	else
1008	#endif	1213	#endif
1009	{	1214	{
1010	cctx->ssize = coro_stacksize * (long)sizeof (long);	1215	cctx->ssize = cctx_stacksize * (long)sizeof (long);
1011	New (0, cctx->sptr, coro_stacksize, long);	1216	New (0, cctx->sptr, cctx_stacksize, long);
1012		1217
1013	if (!cctx->sptr)	1218	if (!cctx->sptr)
1014	{	1219	{
1015	perror ("FATAL: unable to allocate stack for coroutine");	1220	perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1016	_exit (EXIT_FAILURE);	1221	_exit (EXIT_FAILURE);
1017	}	1222	}
1018		1223
1019	stack_start = cctx->sptr;	1224	stack_start = cctx->sptr;
1020	stack_size = cctx->ssize;	1225	stack_size = cctx->ssize;
1021	}	1226	}
1022		1227
1023	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1228	#if CORO_USE_VALGRIND
		1229	cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char )stack_start, (char )stack_start + stack_size);
		1230	#endif
		1231
1024	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);	1232	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
1025		1233
1026	return cctx;	1234	return cctx;
1027	}	1235	}
1028		1236
…		…
1031	{	1239	{
1032	if (!cctx)	1240	if (!cctx)
1033	return;	1241	return;
1034		1242
1035	--cctx_count;	1243	--cctx_count;
		1244	coro_destroy (&cctx->cctx);
1036		1245
		1246	/* coro_transfer creates new, empty cctx's */
		1247	if (cctx->sptr)
		1248	{
1037	#if CORO_USE_VALGRIND	1249	#if CORO_USE_VALGRIND
1038	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1250	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1039	#endif	1251	#endif
1040		1252
1041	#if HAVE_MMAP	1253	#if HAVE_MMAP
1042	if (cctx->flags & CC_MAPPED)	1254	if (cctx->flags & CC_MAPPED)
1043	munmap (cctx->sptr, cctx->ssize);	1255	munmap (cctx->sptr, cctx->ssize);
1044	else	1256	else
1045	#endif	1257	#endif
1046	Safefree (cctx->sptr);	1258	Safefree (cctx->sptr);
		1259	}
1047		1260
1048	Safefree (cctx);	1261	Safefree (cctx);
1049	}	1262	}
1050		1263
1051	/* wether this cctx should be destructed */	1264	/* wether this cctx should be destructed */
1052	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))	1265	#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen \|\| ((cctx)->flags & CC_NOREUSE))
1053		1266
1054	static coro_cctx *	1267	static coro_cctx *
1055	cctx_get (pTHX)	1268	cctx_get (pTHX)
1056	{	1269	{
1057	while (expect_true (cctx_first))	1270	while (expect_true (cctx_first))
…		…
1064	return cctx;	1277	return cctx;
1065		1278
1066	cctx_destroy (cctx);	1279	cctx_destroy (cctx);
1067	}	1280	}
1068		1281
1069	return cctx_new ();	1282	return cctx_new_run ();
1070	}	1283	}
1071		1284
1072	static void	1285	static void
1073	cctx_put (coro_cctx *cctx)	1286	cctx_put (coro_cctx *cctx)
1074	{	1287	{
		1288	assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
		1289
1075	/* free another cctx if overlimit */	1290	/* free another cctx if overlimit */
1076	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))	1291	if (expect_false (cctx_idle >= cctx_max_idle))
1077	{	1292	{
1078	coro_cctx *first = cctx_first;	1293	coro_cctx *first = cctx_first;
1079	cctx_first = first->next;	1294	cctx_first = first->next;
1080	--cctx_idle;	1295	--cctx_idle;
1081		1296
…		…
1101	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1316	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1102		1317
1103	if (expect_false (next->flags & CF_DESTROYED))	1318	if (expect_false (next->flags & CF_DESTROYED))
1104	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1319	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1105		1320
1106	if (
1107	#if PERL_VERSION_ATLEAST (5,9,0)	1321	#if !PERL_VERSION_ATLEAST (5,10,0)
1108	expect_false (PL_parser)
1109	#else
1110	expect_false (PL_lex_state != LEX_NOTPARSING)	1322	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1111	#endif
1112	)
1113	croak ("Coro::State::transfer called while parsing, but this is not supported");	1323	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1324	#endif
1114	}	1325	}
1115	}	1326	}
1116		1327
1117	/* always use the TRANSFER macro */	1328	/* always use the TRANSFER macro */
1118	static void NOINLINE	1329	static void NOINLINE
1119	transfer (pTHX_ struct coro prev, struct coro next)	1330	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1120	{	1331	{
1121	dSTACKLEVEL;	1332	dSTACKLEVEL;
1122		1333
1123	/* sometimes transfer is only called to set idle_sp */	1334	/* sometimes transfer is only called to set idle_sp */
1124	if (expect_false (!next))	1335	if (expect_false (!next))
1125	{	1336	{
1126	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1337	((coro_cctx *)prev)->idle_sp = stacklevel;
1127	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1338	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
1128	}	1339	}
1129	else if (expect_true (prev != next))	1340	else if (expect_true (prev != next))
1130	{	1341	{
1131	coro_cctx *prev__cctx;	1342	coro_cctx *prev__cctx;
1132		1343
1133	if (expect_false (prev->flags & CF_NEW))	1344	if (expect_false (prev->flags & CF_NEW))
1134	{	1345	{
1135	/* create a new empty context */	1346	/* create a new empty/source context */
1136	Newz (0, prev->cctx, 1, coro_cctx);	1347	prev->cctx = cctx_new_empty ();
1137	prev->flags &= ~CF_NEW;	1348	prev->flags &= ~CF_NEW;
1138	prev->flags \|= CF_RUNNING;	1349	prev->flags \|= CF_RUNNING;
1139	}	1350	}
1140		1351
1141	prev->flags &= ~CF_RUNNING;	1352	prev->flags &= ~CF_RUNNING;
…		…
1156	else	1367	else
1157	load_perl (aTHX_ next);	1368	load_perl (aTHX_ next);
1158		1369
1159	prev__cctx = prev->cctx;	1370	prev__cctx = prev->cctx;
1160		1371
1161	/* possibly "free" the cctx */	1372	/* possibly untie and reuse the cctx */
1162	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1373	if (expect_true (
		1374	prev__cctx->idle_sp == stacklevel
		1375	&& !(prev__cctx->flags & CC_TRACE)
		1376	&& !force_cctx
		1377	))
1163	{	1378	{
1164	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1379	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1165	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1380	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1166		1381
1167	prev->cctx = 0;	1382	prev->cctx = 0;
1168		1383
1169	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1384	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1170	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1385	/* without this the next cctx_get might destroy the prev__cctx while still in use */
…		…
1177		1392
1178	++next->usecount;	1393	++next->usecount;
1179		1394
1180	if (expect_true (!next->cctx))	1395	if (expect_true (!next->cctx))
1181	next->cctx = cctx_get (aTHX);	1396	next->cctx = cctx_get (aTHX);
		1397
		1398	assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
		1399	transfer_next = next;
1182		1400
1183	if (expect_false (prev__cctx != next->cctx))	1401	if (expect_false (prev__cctx != next->cctx))
1184	{	1402	{
1185	prev__cctx->top_env = PL_top_env;	1403	prev__cctx->top_env = PL_top_env;
1186	PL_top_env = next->cctx->top_env;	1404	PL_top_env = next->cctx->top_env;
1187	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1405	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1188	}	1406	}
1189		1407
1190	free_coro_mortal (aTHX);	1408	transfer_tail (aTHX);
1191	UNLOCK;
1192
1193	if (expect_false (prev->throw \|\| next->throw))
1194	{
1195	struct coro *coro = SvSTATE (coro_current);
1196
1197	if (coro->throw)
1198	{
1199	SV *exception = coro->throw;
1200	coro->throw = 0;
1201	sv_setsv (ERRSV, exception);
1202	croak (0);
1203	}
1204	}
1205	}	1409	}
1206	}	1410	}
1207		1411
1208	struct transfer_args
1209	{
1210	struct coro prev, next;
1211	};
1212
1213	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1412	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1214	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1413	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1215		1414
1216	/ high level stuff ******************************************************/	1415	/ high level stuff ******************************************************/
1217		1416
1218	static int	1417	static int
…		…
1242	croak ("FATAL: tried to destroy currently running coroutine");	1441	croak ("FATAL: tried to destroy currently running coroutine");
1243		1442
1244	save_perl (aTHX_ &temp);	1443	save_perl (aTHX_ &temp);
1245	load_perl (aTHX_ coro);	1444	load_perl (aTHX_ coro);
1246		1445
1247	coro_destroy (aTHX_ coro);	1446	coro_destruct (aTHX_ coro);
1248		1447
1249	load_perl (aTHX_ &temp);	1448	load_perl (aTHX_ &temp);
1250		1449
1251	coro->slot = 0;	1450	coro->slot = 0;
1252	}	1451	}
…		…
1312	{	1511	{
1313	dTHX;	1512	dTHX;
1314	struct transfer_args ta;	1513	struct transfer_args ta;
1315		1514
1316	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1515	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1317	TRANSFER (ta);	1516	TRANSFER (ta, 1);
1318	}	1517	}
1319		1518
1320	/ Coro ******************************************************************/	1519	/ Coro ******************************************************************/
1321		1520
1322	static void	1521	static void
…		…
1324	{	1523	{
1325	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1524	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1326	}	1525	}
1327		1526
1328	static SV *	1527	static SV *
1329	coro_deq (pTHX_ int min_prio)	1528	coro_deq (pTHX)
1330	{	1529	{
1331	int prio = PRIO_MAX - PRIO_MIN;	1530	int prio;
1332		1531
1333	min_prio -= PRIO_MIN;
1334	if (min_prio < 0)
1335	min_prio = 0;
1336
1337	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1532	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1338	if (AvFILLp (coro_ready [prio]) >= 0)	1533	if (AvFILLp (coro_ready [prio]) >= 0)
1339	return av_shift (coro_ready [prio]);	1534	return av_shift (coro_ready [prio]);
1340		1535
1341	return 0;	1536	return 0;
1342	}	1537	}
…		…
1344	static int	1539	static int
1345	api_ready (SV *coro_sv)	1540	api_ready (SV *coro_sv)
1346	{	1541	{
1347	dTHX;	1542	dTHX;
1348	struct coro *coro;	1543	struct coro *coro;
		1544	SV *sv_hook;
		1545	void (*xs_hook)(void);
1349		1546
1350	if (SvROK (coro_sv))	1547	if (SvROK (coro_sv))
1351	coro_sv = SvRV (coro_sv);	1548	coro_sv = SvRV (coro_sv);
1352		1549
1353	coro = SvSTATE (coro_sv);	1550	coro = SvSTATE (coro_sv);
…		…
1356	return 0;	1553	return 0;
1357		1554
1358	coro->flags \|= CF_READY;	1555	coro->flags \|= CF_READY;
1359		1556
1360	LOCK;	1557	LOCK;
		1558
		1559	sv_hook = coro_nready ? 0 : coro_readyhook;
		1560	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1561
1361	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1562	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1362	++coro_nready;	1563	++coro_nready;
		1564
1363	UNLOCK;	1565	UNLOCK;
		1566
		1567	if (sv_hook)
		1568	{
		1569	dSP;
		1570
		1571	ENTER;
		1572	SAVETMPS;
		1573
		1574	PUSHMARK (SP);
		1575	PUTBACK;
		1576	call_sv (sv_hook, G_DISCARD);
		1577	SPAGAIN;
		1578
		1579	FREETMPS;
		1580	LEAVE;
		1581	}
		1582
		1583	if (xs_hook)
		1584	xs_hook ();
1364		1585
1365	return 1;	1586	return 1;
1366	}	1587	}
1367		1588
1368	static int	1589	static int
1369	api_is_ready (SV *coro_sv)	1590	api_is_ready (SV *coro_sv)
1370	{	1591	{
1371	dTHX;	1592	dTHX;
		1593
1372	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1594	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1373	}	1595	}
1374		1596
1375	static void	1597	INLINE void
1376	prepare_schedule (pTHX_ struct transfer_args *ta)	1598	prepare_schedule (pTHX_ struct transfer_args *ta)
1377	{	1599	{
1378	SV prev_sv, next_sv;	1600	SV prev_sv, next_sv;
1379		1601
1380	for (;;)	1602	for (;;)
1381	{	1603	{
1382	LOCK;	1604	LOCK;
1383	next_sv = coro_deq (aTHX_ PRIO_MIN);	1605	next_sv = coro_deq (aTHX);
1384		1606
1385	/* nothing to schedule: call the idle handler */	1607	/* nothing to schedule: call the idle handler */
1386	if (expect_false (!next_sv))	1608	if (expect_false (!next_sv))
1387	{	1609	{
1388	dSP;	1610	dSP;
…		…
1392	SAVETMPS;	1614	SAVETMPS;
1393		1615
1394	PUSHMARK (SP);	1616	PUSHMARK (SP);
1395	PUTBACK;	1617	PUTBACK;
1396	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1618	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1619	SPAGAIN;
1397		1620
1398	FREETMPS;	1621	FREETMPS;
1399	LEAVE;	1622	LEAVE;
1400	continue;	1623	continue;
1401	}	1624	}
…		…
1405	/* cannot transfer to destroyed coros, skip and look for next */	1628	/* cannot transfer to destroyed coros, skip and look for next */
1406	if (expect_false (ta->next->flags & CF_DESTROYED))	1629	if (expect_false (ta->next->flags & CF_DESTROYED))
1407	{	1630	{
1408	UNLOCK;	1631	UNLOCK;
1409	SvREFCNT_dec (next_sv);	1632	SvREFCNT_dec (next_sv);
1410	/* coro_nready is already taken care of by destroy */	1633	/* coro_nready has already been taken care of by destroy */
1411	continue;	1634	continue;
1412	}	1635	}
1413		1636
1414	--coro_nready;	1637	--coro_nready;
1415	UNLOCK;	1638	UNLOCK;
…		…
1418		1641
1419	/* free this only after the transfer */	1642	/* free this only after the transfer */
1420	prev_sv = SvRV (coro_current);	1643	prev_sv = SvRV (coro_current);
1421	ta->prev = SvSTATE (prev_sv);	1644	ta->prev = SvSTATE (prev_sv);
1422	TRANSFER_CHECK (*ta);	1645	TRANSFER_CHECK (*ta);
1423	assert (ta->next->flags & CF_READY);	1646	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1424	ta->next->flags &= ~CF_READY;	1647	ta->next->flags &= ~CF_READY;
1425	SvRV_set (coro_current, next_sv);	1648	SvRV_set (coro_current, next_sv);
1426		1649
1427	LOCK;	1650	LOCK;
1428	free_coro_mortal (aTHX);	1651	free_coro_mortal (aTHX);
1429	coro_mortal = prev_sv;	1652	coro_mortal = prev_sv;
1430	UNLOCK;	1653	UNLOCK;
1431	}	1654	}
1432		1655
1433	static void	1656	INLINE void
1434	prepare_cede (pTHX_ struct transfer_args *ta)	1657	prepare_cede (pTHX_ struct transfer_args *ta)
1435	{	1658	{
1436	api_ready (coro_current);	1659	api_ready (coro_current);
1437	prepare_schedule (aTHX_ ta);	1660	prepare_schedule (aTHX_ ta);
1438	}	1661	}
1439		1662
1440	static int	1663	static void
1441	prepare_cede_notself (pTHX_ struct transfer_args *ta)	1664	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1442	{	1665	{
		1666	SV *prev = SvRV (coro_current);
		1667
1443	if (coro_nready)	1668	if (coro_nready)
1444	{	1669	{
1445	SV *prev = SvRV (coro_current);
1446	prepare_schedule (aTHX_ ta);	1670	prepare_schedule (aTHX_ ta);
1447	api_ready (prev);	1671	api_ready (prev);
		1672	}
		1673	else
		1674	ta->prev = ta->next = SvSTATE (prev);
		1675	}
		1676
		1677	static void
		1678	api_schedule (void)
		1679	{
		1680	dTHX;
		1681	struct transfer_args ta;
		1682
		1683	prepare_schedule (aTHX_ &ta);
		1684	TRANSFER (ta, 1);
		1685	}
		1686
		1687	static int
		1688	api_cede (void)
		1689	{
		1690	dTHX;
		1691	struct transfer_args ta;
		1692
		1693	prepare_cede (aTHX_ &ta);
		1694
		1695	if (expect_true (ta.prev != ta.next))
		1696	{
		1697	TRANSFER (ta, 1);
1448	return 1;	1698	return 1;
1449	}	1699	}
1450	else	1700	else
1451	return 0;	1701	return 0;
1452	}	1702	}
1453		1703
1454	static void
1455	api_schedule (void)
1456	{
1457	dTHX;
1458	struct transfer_args ta;
1459
1460	prepare_schedule (aTHX_ &ta);
1461	TRANSFER (ta);
1462	}
1463
1464	static int	1704	static int
1465	api_cede (void)	1705	api_cede_notself (void)
1466	{	1706	{
		1707	if (coro_nready)
		1708	{
1467	dTHX;	1709	dTHX;
1468	struct transfer_args ta;	1710	struct transfer_args ta;
1469		1711
1470	prepare_cede (aTHX_ &ta);	1712	prepare_cede_notself (aTHX_ &ta);
1471
1472	if (expect_true (ta.prev != ta.next))
1473	{
1474	TRANSFER (ta);	1713	TRANSFER (ta, 1);
1475	return 1;	1714	return 1;
1476	}	1715	}
1477	else	1716	else
1478	return 0;	1717	return 0;
1479	}	1718	}
1480		1719
1481	static int
1482	api_cede_notself (void)
1483	{
1484	dTHX;
1485	struct transfer_args ta;
1486
1487	if (prepare_cede_notself (aTHX_ &ta))
1488	{
1489	TRANSFER (ta);
1490	return 1;
1491	}
1492	else
1493	return 0;
1494	}
1495
1496	static void	1720	static void
1497	api_trace (SV *coro_sv, int flags)	1721	api_trace (SV *coro_sv, int flags)
1498	{	1722	{
1499	dTHX;	1723	dTHX;
1500	struct coro *coro = SvSTATE (coro_sv);	1724	struct coro *coro = SvSTATE (coro_sv);
1501		1725
1502	if (flags & CC_TRACE)	1726	if (flags & CC_TRACE)
1503	{	1727	{
1504	if (!coro->cctx)	1728	if (!coro->cctx)
1505	coro->cctx = cctx_new ();	1729	coro->cctx = cctx_new_run ();
1506	else if (!(coro->cctx->flags & CC_TRACE))	1730	else if (!(coro->cctx->flags & CC_TRACE))
1507	croak ("cannot enable tracing on coroutine with custom stack");	1731	croak ("cannot enable tracing on coroutine with custom stack");
1508		1732
1509	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));	1733	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
1510	}	1734	}
…		…
1517	else	1741	else
1518	coro->slot->runops = RUNOPS_DEFAULT;	1742	coro->slot->runops = RUNOPS_DEFAULT;
1519	}	1743	}
1520	}	1744	}
1521		1745
		1746	#if 0
		1747	static int
		1748	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1749	{
		1750	AV *padlist;
		1751	AV av = (AV )mg->mg_obj;
		1752
		1753	abort ();
		1754
		1755	return 0;
		1756	}
		1757
		1758	static MGVTBL coro_gensub_vtbl = {
		1759	0, 0, 0, 0,
		1760	coro_gensub_free
		1761	};
		1762	#endif
		1763
		1764	/*****************************************************************************/
		1765	/* PerlIO::cede */
		1766
		1767	typedef struct
		1768	{
		1769	PerlIOBuf base;
		1770	NV next, every;
		1771	} PerlIOCede;
		1772
		1773	static IV
		1774	PerlIOCede_pushed (pTHX_ PerlIO f, const char mode, SV arg, PerlIO_funcs tab)
		1775	{
		1776	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1777
		1778	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1779	self->next = nvtime () + self->every;
		1780
		1781	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1782	}
		1783
		1784	static SV *
		1785	PerlIOCede_getarg (pTHX_ PerlIO f, CLONE_PARAMS param, int flags)
		1786	{
		1787	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1788
		1789	return newSVnv (self->every);
		1790	}
		1791
		1792	static IV
		1793	PerlIOCede_flush (pTHX_ PerlIO *f)
		1794	{
		1795	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1796	double now = nvtime ();
		1797
		1798	if (now >= self->next)
		1799	{
		1800	api_cede ();
		1801	self->next = now + self->every;
		1802	}
		1803
		1804	return PerlIOBuf_flush (aTHX_ f);
		1805	}
		1806
		1807	static PerlIO_funcs PerlIO_cede =
		1808	{
		1809	sizeof(PerlIO_funcs),
		1810	"cede",
		1811	sizeof(PerlIOCede),
		1812	PERLIO_K_DESTRUCT \| PERLIO_K_RAW,
		1813	PerlIOCede_pushed,
		1814	PerlIOBuf_popped,
		1815	PerlIOBuf_open,
		1816	PerlIOBase_binmode,
		1817	PerlIOCede_getarg,
		1818	PerlIOBase_fileno,
		1819	PerlIOBuf_dup,
		1820	PerlIOBuf_read,
		1821	PerlIOBuf_unread,
		1822	PerlIOBuf_write,
		1823	PerlIOBuf_seek,
		1824	PerlIOBuf_tell,
		1825	PerlIOBuf_close,
		1826	PerlIOCede_flush,
		1827	PerlIOBuf_fill,
		1828	PerlIOBase_eof,
		1829	PerlIOBase_error,
		1830	PerlIOBase_clearerr,
		1831	PerlIOBase_setlinebuf,
		1832	PerlIOBuf_get_base,
		1833	PerlIOBuf_bufsiz,
		1834	PerlIOBuf_get_ptr,
		1835	PerlIOBuf_get_cnt,
		1836	PerlIOBuf_set_ptrcnt,
		1837	};
		1838
		1839	/*****************************************************************************/
		1840
		1841	static const CV ssl_cv; / for quick consistency check */
		1842
		1843	static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */
		1844	static SV *ssl_arg0;
		1845	static SV *ssl_arg1;
		1846
		1847	/* this restores the stack in the case we patched the entersub, to */
		1848	/* recreate the stack frame as perl will on following calls */
		1849	/* since entersub cleared the stack */
		1850	static OP *
		1851	pp_restore (pTHX)
		1852	{
		1853	dSP;
		1854
		1855	PUSHMARK (SP);
		1856
		1857	EXTEND (SP, 3);
		1858	if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0;
		1859	if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0;
		1860	PUSHs ((SV *)CvGV (ssl_cv));
		1861
		1862	RETURNOP (ssl_restore.op_first);
		1863	}
		1864
		1865	#define OPpENTERSUB_SSL 15 /* the part of op_private entersub hopefully doesn't use */
		1866
		1867	/* declare prototype */
		1868	XS(XS_Coro__State__set_stacklevel);
		1869
		1870	/*
		1871	* these not obviously related functions are all rolled into one
		1872	* function to increase chances that they all will call transfer with the same
		1873	* stack offset
		1874	*/
		1875	static OP *
		1876	pp_set_stacklevel (pTHX)
		1877	{
		1878	dSP;
		1879	struct transfer_args ta;
		1880	SV **arg = PL_stack_base + TOPMARK + 1;
		1881	int items = SP - arg; /* args without function object */
		1882
		1883	/* do a quick consistency check on the "function" object, and if it isn't */
		1884	/* for us, divert to the real entersub */
		1885	if (SvTYPE (sp) != SVt_PVGV \|\| CvXSUB (GvCV (sp)) != XS_Coro__State__set_stacklevel)
		1886	return PL_ppaddr[OP_ENTERSUB](aTHX);
		1887
		1888	/* pop args */
		1889	SP = PL_stack_base + POPMARK;
		1890
		1891	if (!(PL_op->op_flags & OPf_STACKED))
		1892	{
		1893	/* ampersand-form of call, use @_ instead of stack */
		1894	AV *av = GvAV (PL_defgv);
		1895	arg = AvARRAY (av);
		1896	items = AvFILLp (av) + 1;
		1897	}
		1898
		1899	PUTBACK;
		1900	switch (PL_op->op_private & OPpENTERSUB_SSL)
		1901	{
		1902	case 0:
		1903	prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0]));
		1904	break;
		1905
		1906	case 1:
		1907	if (items != 2)
		1908	croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items);
		1909
		1910	prepare_transfer (aTHX_ &ta, arg [0], arg [1]);
		1911	break;
		1912
		1913	case 2:
		1914	prepare_schedule (aTHX_ &ta);
		1915	break;
		1916
		1917	case 3:
		1918	prepare_cede (aTHX_ &ta);
		1919	break;
		1920
		1921	case 4:
		1922	prepare_cede_notself (aTHX_ &ta);
		1923	break;
		1924	}
		1925
		1926	TRANSFER (ta, 0);
		1927	SPAGAIN;
		1928
		1929	skip:
		1930	PUTBACK;
		1931	SSL_TAIL;
		1932	SPAGAIN;
		1933	RETURN;
		1934	}
		1935
		1936	static void
		1937	coro_ssl_patch (pTHX_ CV cv, int ix, SV *args, int items)
		1938	{
		1939	assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel));
		1940
		1941	assert (("FATAL: ssl call with illegal CV value", CvGV (cv)));
		1942	ssl_cv = cv;
		1943
		1944	/* we patch the op, and then re-run the whole call */
		1945	/* we have to put some dummy argument on the stack for this to work */
		1946	ssl_restore.op_next = (OP *)&ssl_restore;
		1947	ssl_restore.op_type = OP_NULL;
		1948	ssl_restore.op_ppaddr = pp_restore;
		1949	ssl_restore.op_first = PL_op;
		1950
		1951	ssl_arg0 = items > 0 ? SvREFCNT_inc (args [0]) : 0;
		1952	ssl_arg1 = items > 1 ? SvREFCNT_inc (args [1]) : 0;
		1953
		1954	PL_op->op_ppaddr = pp_set_stacklevel;
		1955	PL_op->op_private = PL_op->op_private & ~OPpENTERSUB_SSL \| ix; /* we potentially share our private flags with entersub */
		1956
		1957	PL_op = (OP *)&ssl_restore;
		1958	}
		1959
1522	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1960	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1523		1961
1524	PROTOTYPES: DISABLE	1962	PROTOTYPES: DISABLE
1525		1963
1526	BOOT:	1964	BOOT:
1527	{	1965	{
1528	#ifdef USE_ITHREADS	1966	#ifdef USE_ITHREADS
1529	MUTEX_INIT (&coro_mutex);	1967	MUTEX_INIT (&coro_lock);
		1968	# if CORO_PTHREAD
		1969	coro_thx = PERL_GET_CONTEXT;
		1970	# endif
1530	#endif	1971	#endif
1531	BOOT_PAGESIZE;	1972	BOOT_PAGESIZE;
1532		1973
1533	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1974	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1534	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1975	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1535		1976
1536	orig_sigelem_get = PL_vtbl_sigelem.svt_get;	1977	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1537	PL_vtbl_sigelem.svt_get = coro_sigelem_get;	1978	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1979	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
1538		1980
1539	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);	1981	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1540	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));	1982	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1541	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));	1983	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1542		1984
…		…
1551	main_top_env = PL_top_env;	1993	main_top_env = PL_top_env;
1552		1994
1553	while (main_top_env->je_prev)	1995	while (main_top_env->je_prev)
1554	main_top_env = main_top_env->je_prev;	1996	main_top_env = main_top_env->je_prev;
1555		1997
1556	coroapi.ver = CORO_API_VERSION;	1998	coroapi.ver = CORO_API_VERSION;
1557	coroapi.rev = CORO_API_REVISION;	1999	coroapi.rev = CORO_API_REVISION;
1558	coroapi.transfer = api_transfer;	2000	coroapi.transfer = api_transfer;
		2001
		2002	{
		2003	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		2004
		2005	if (!svp) croak ("Time::HiRes is required");
		2006	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
		2007
		2008	nvtime = INT2PTR (double ()(), SvIV (svp));
		2009	}
1559		2010
1560	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2011	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1561	}	2012	}
1562		2013
1563	SV *	2014	SV *
…		…
1587	av_push (coro->args, newSVsv (ST (i)));	2038	av_push (coro->args, newSVsv (ST (i)));
1588	}	2039	}
1589	OUTPUT:	2040	OUTPUT:
1590	RETVAL	2041	RETVAL
1591		2042
1592	# these not obviously related functions are all rolled into the same xs
1593	# function to increase chances that they all will call transfer with the same
1594	# stack offset
1595	void	2043	void
1596	_set_stacklevel (...)	2044	_set_stacklevel (...)
1597	ALIAS:	2045	ALIAS:
1598	Coro::State::transfer = 1	2046	Coro::State::transfer = 1
1599	Coro::schedule = 2	2047	Coro::schedule = 2
1600	Coro::cede = 3	2048	Coro::cede = 3
1601	Coro::cede_notself = 4	2049	Coro::cede_notself = 4
1602	CODE:	2050	CODE:
1603	{	2051	coro_ssl_patch (aTHX_ cv, ix, &ST (0), items);
1604	struct transfer_args ta;
1605
1606	switch (ix)
1607	{
1608	case 0:
1609	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1610	ta.next = 0;
1611	break;
1612
1613	case 1:
1614	if (items != 2)
1615	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1616
1617	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1618	break;
1619
1620	case 2:
1621	prepare_schedule (aTHX_ &ta);
1622	break;
1623
1624	case 3:
1625	prepare_cede (aTHX_ &ta);
1626	break;
1627
1628	case 4:
1629	if (!prepare_cede_notself (aTHX_ &ta))
1630	XSRETURN_EMPTY;
1631
1632	break;
1633	}
1634
1635	BARRIER;
1636	PUTBACK;
1637	TRANSFER (ta);
1638	SPAGAIN; /* might be the sp of a different coroutine now */
1639	/* be extra careful not to ever do anything after TRANSFER */
1640	}
1641		2052
1642	bool	2053	bool
1643	_destroy (SV *coro_sv)	2054	_destroy (SV *coro_sv)
1644	CODE:	2055	CODE:
1645	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	2056	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1646	OUTPUT:	2057	OUTPUT:
1647	RETVAL	2058	RETVAL
1648		2059
1649	void	2060	void
1650	_exit (code)	2061	_exit (int code)
1651	int code
1652	PROTOTYPE: $	2062	PROTOTYPE: $
1653	CODE:	2063	CODE:
1654	_exit (code);	2064	_exit (code);
1655		2065
1656	int	2066	int
1657	cctx_stacksize (int new_stacksize = 0)	2067	cctx_stacksize (int new_stacksize = 0)
1658	CODE:	2068	CODE:
1659	RETVAL = coro_stacksize;	2069	RETVAL = cctx_stacksize;
1660	if (new_stacksize)	2070	if (new_stacksize)
		2071	{
1661	coro_stacksize = new_stacksize;	2072	cctx_stacksize = new_stacksize;
		2073	++cctx_gen;
		2074	}
		2075	OUTPUT:
		2076	RETVAL
		2077
		2078	int
		2079	cctx_max_idle (int max_idle = 0)
		2080	CODE:
		2081	RETVAL = cctx_max_idle;
		2082	if (max_idle > 1)
		2083	cctx_max_idle = max_idle;
1662	OUTPUT:	2084	OUTPUT:
1663	RETVAL	2085	RETVAL
1664		2086
1665	int	2087	int
1666	cctx_count ()	2088	cctx_count ()
…		…
1690	call (Coro::State coro, SV *coderef)	2112	call (Coro::State coro, SV *coderef)
1691	ALIAS:	2113	ALIAS:
1692	eval = 1	2114	eval = 1
1693	CODE:	2115	CODE:
1694	{	2116	{
1695	if (coro->mainstack)	2117	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
1696	{	2118	{
1697	struct coro temp;	2119	struct coro temp;
1698		2120
1699	if (!(coro->flags & CF_RUNNING))	2121	if (!(coro->flags & CF_RUNNING))
1700	{	2122	{
		2123	PUTBACK;
1701	save_perl (aTHX_ &temp);	2124	save_perl (aTHX_ &temp);
1702	load_perl (aTHX_ coro);	2125	load_perl (aTHX_ coro);
1703	}	2126	}
1704		2127
1705	{	2128	{
…		…
1724		2147
1725	if (!(coro->flags & CF_RUNNING))	2148	if (!(coro->flags & CF_RUNNING))
1726	{	2149	{
1727	save_perl (aTHX_ coro);	2150	save_perl (aTHX_ coro);
1728	load_perl (aTHX_ &temp);	2151	load_perl (aTHX_ &temp);
		2152	SPAGAIN;
1729	}	2153	}
1730	}	2154	}
1731	}	2155	}
1732		2156
1733	SV *	2157	SV *
…		…
1742	RETVAL = boolSV (coro->flags & ix);	2166	RETVAL = boolSV (coro->flags & ix);
1743	OUTPUT:	2167	OUTPUT:
1744	RETVAL	2168	RETVAL
1745		2169
1746	void	2170	void
		2171	throw (Coro::State self, SV *throw = &PL_sv_undef)
		2172	PROTOTYPE: $;$
		2173	CODE:
		2174	SvREFCNT_dec (self->throw);
		2175	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		2176
		2177	void
1747	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	2178	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1748		2179
1749	SV *	2180	SV *
1750	has_stack (Coro::State coro)	2181	has_cctx (Coro::State coro)
1751	PROTOTYPE: $	2182	PROTOTYPE: $
1752	CODE:	2183	CODE:
1753	RETVAL = boolSV (!!coro->cctx);	2184	RETVAL = boolSV (!!coro->cctx);
1754	OUTPUT:	2185	OUTPUT:
1755	RETVAL	2186	RETVAL
…		…
1760	CODE:	2191	CODE:
1761	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;	2192	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1762	OUTPUT:	2193	OUTPUT:
1763	RETVAL	2194	RETVAL
1764		2195
1765	IV	2196	UV
1766	rss (Coro::State coro)	2197	rss (Coro::State coro)
1767	PROTOTYPE: $	2198	PROTOTYPE: $
1768	ALIAS:	2199	ALIAS:
1769	usecount = 1	2200	usecount = 1
1770	CODE:	2201	CODE:
…		…
1774	case 1: RETVAL = coro->usecount; break;	2205	case 1: RETVAL = coro->usecount; break;
1775	}	2206	}
1776	OUTPUT:	2207	OUTPUT:
1777	RETVAL	2208	RETVAL
1778		2209
		2210	void
		2211	force_cctx ()
		2212	CODE:
		2213	struct coro *coro = SvSTATE (coro_current);
		2214	coro->cctx->idle_sp = 0;
		2215
		2216	void
		2217	swap_defsv (Coro::State self)
		2218	PROTOTYPE: $
		2219	ALIAS:
		2220	swap_defav = 1
		2221	CODE:
		2222	if (!self->slot)
		2223	croak ("cannot swap state with coroutine that has no saved state");
		2224	else
		2225	{
		2226	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2227	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		2228
		2229	SV tmp = src; src = dst; *dst = tmp;
		2230	}
1779		2231
1780	MODULE = Coro::State PACKAGE = Coro	2232	MODULE = Coro::State PACKAGE = Coro
1781		2233
1782	BOOT:	2234	BOOT:
1783	{	2235	{
1784	int i;	2236	int i;
1785		2237
		2238	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1786	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	2239	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1787	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	2240	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1788	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1789		2241
1790	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	2242	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1791	SvREADONLY_on (coro_current);	2243	SvREADONLY_on (coro_current);
1792		2244
1793	coro_stash = gv_stashpv ("Coro", TRUE);	2245	coro_stash = gv_stashpv ("Coro", TRUE);
…		…
1801		2253
1802	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	2254	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1803	coro_ready[i] = newAV ();	2255	coro_ready[i] = newAV ();
1804		2256
1805	{	2257	{
1806	SV *sv = perl_get_sv ("Coro::API", TRUE);	2258	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
1807	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1808		2259
1809	coroapi.schedule = api_schedule;	2260	coroapi.schedule = api_schedule;
1810	coroapi.cede = api_cede;	2261	coroapi.cede = api_cede;
1811	coroapi.cede_notself = api_cede_notself;	2262	coroapi.cede_notself = api_cede_notself;
1812	coroapi.ready = api_ready;	2263	coroapi.ready = api_ready;
…		…
1823	void	2274	void
1824	_set_current (SV *current)	2275	_set_current (SV *current)
1825	PROTOTYPE: $	2276	PROTOTYPE: $
1826	CODE:	2277	CODE:
1827	SvREFCNT_dec (SvRV (coro_current));	2278	SvREFCNT_dec (SvRV (coro_current));
1828	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	2279	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2280
		2281	void
		2282	_set_readyhook (SV *hook)
		2283	PROTOTYPE: $
		2284	CODE:
		2285	LOCK;
		2286	SvREFCNT_dec (coro_readyhook);
		2287	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2288	UNLOCK;
1829		2289
1830	int	2290	int
1831	prio (Coro::State coro, int newprio = 0)	2291	prio (Coro::State coro, int newprio = 0)
1832	ALIAS:	2292	ALIAS:
1833	nice = 1	2293	nice = 1
…		…
1863	CODE:	2323	CODE:
1864	RETVAL = coro_nready;	2324	RETVAL = coro_nready;
1865	OUTPUT:	2325	OUTPUT:
1866	RETVAL	2326	RETVAL
1867		2327
1868	void
1869	throw (Coro::State self, SV *throw = &PL_sv_undef)
1870	PROTOTYPE: $;$
1871	CODE:
1872	SvREFCNT_dec (self->throw);
1873	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1874
1875	# for async_pool speedup	2328	# for async_pool speedup
1876	void	2329	void
1877	_pool_1 (SV *cb)	2330	_pool_1 (SV *cb)
1878	CODE:	2331	CODE:
1879	{	2332	{
…		…
1883	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	2336	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1884	AV *invoke_av;	2337	AV *invoke_av;
1885	int i, len;	2338	int i, len;
1886		2339
1887	if (!invoke)	2340	if (!invoke)
		2341	{
		2342	SV *old = PL_diehook;
		2343	PL_diehook = 0;
		2344	SvREFCNT_dec (old);
1888	croak ("\3async_pool terminate\2\n");	2345	croak ("\3async_pool terminate\2\n");
		2346	}
1889		2347
1890	SvREFCNT_dec (coro->saved_deffh);	2348	SvREFCNT_dec (coro->saved_deffh);
1891	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2349	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1892		2350
1893	hv_store (hv, "desc", sizeof ("desc") - 1,	2351	hv_store (hv, "desc", sizeof ("desc") - 1,
1894	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	2352	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1895		2353
1896	invoke_av = (AV *)SvRV (invoke);	2354	invoke_av = (AV *)SvRV (invoke);
…		…
1900		2358
1901	if (len > 0)	2359	if (len > 0)
1902	{	2360	{
1903	av_fill (defav, len - 1);	2361	av_fill (defav, len - 1);
1904	for (i = 0; i < len; ++i)	2362	for (i = 0; i < len; ++i)
1905	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2363	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1906	}	2364	}
1907		2365
1908	SvREFCNT_dec (invoke);	2366	SvREFCNT_dec (invoke);
1909	}	2367	}
1910		2368
…		…
1917	sv_setsv (cb, &PL_sv_undef);	2375	sv_setsv (cb, &PL_sv_undef);
1918		2376
1919	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2377	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1920	coro->saved_deffh = 0;	2378	coro->saved_deffh = 0;
1921		2379
1922	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2380	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1923	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2381	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2382	{
		2383	SV *old = PL_diehook;
		2384	PL_diehook = 0;
		2385	SvREFCNT_dec (old);
1924	croak ("\3async_pool terminate\2\n");	2386	croak ("\3async_pool terminate\2\n");
		2387	}
1925		2388
1926	av_clear (GvAV (PL_defgv));	2389	av_clear (GvAV (PL_defgv));
1927	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2390	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1928	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	2391	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1929		2392
…		…
1933	api_trace (coro_current, 0);	2396	api_trace (coro_current, 0);
1934		2397
1935	av_push (av_async_pool, newSVsv (coro_current));	2398	av_push (av_async_pool, newSVsv (coro_current));
1936	}	2399	}
1937		2400
		2401	#if 0
		2402
		2403	void
		2404	_generator_call (...)
		2405	PROTOTYPE: @
		2406	PPCODE:
		2407	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2408	xxxx
		2409	abort ();
		2410
		2411	SV *
		2412	gensub (SV *sub, ...)
		2413	PROTOTYPE: &;@
		2414	CODE:
		2415	{
		2416	struct coro *coro;
		2417	MAGIC *mg;
		2418	CV *xcv;
		2419	CV ncv = (CV )newSV_type (SVt_PVCV);
		2420	int i;
		2421
		2422	CvGV (ncv) = CvGV (cv);
		2423	CvFILE (ncv) = CvFILE (cv);
		2424
		2425	Newz (0, coro, 1, struct coro);
		2426	coro->args = newAV ();
		2427	coro->flags = CF_NEW;
		2428
		2429	av_extend (coro->args, items - 1);
		2430	for (i = 1; i < items; i++)
		2431	av_push (coro->args, newSVsv (ST (i)));
		2432
		2433	CvISXSUB_on (ncv);
		2434	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2435
		2436	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2437
		2438	CvXSUB (ncv) = CvXSUB (xcv);
		2439	CvANON_on (ncv);
		2440
		2441	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2442	RETVAL = newRV_noinc ((SV *)ncv);
		2443	}
		2444	OUTPUT:
		2445	RETVAL
		2446
		2447	#endif
		2448
1938		2449
1939	MODULE = Coro::State PACKAGE = Coro::AIO	2450	MODULE = Coro::State PACKAGE = Coro::AIO
1940		2451
1941	SV *	2452	void
1942	_get_state ()	2453	_get_state (SV *self)
1943	CODE:	2454	PPCODE:
1944	{	2455	{
1945	struct io_state *data;	2456	AV *defav = GvAV (PL_defgv);
1946		2457	AV *av = newAV ();
		2458	int i;
1947	RETVAL = newSV (sizeof (struct io_state));	2459	SV *data_sv = newSV (sizeof (struct io_state));
1948	data = (struct io_state *)SvPVX (RETVAL);	2460	struct io_state data = (struct io_state )SvPVX (data_sv);
1949	SvCUR_set (RETVAL, sizeof (struct io_state));	2461	SvCUR_set (data_sv, sizeof (struct io_state));
1950	SvPOK_only (RETVAL);	2462	SvPOK_only (data_sv);
1951		2463
1952	data->errorno = errno;	2464	data->errorno = errno;
1953	data->laststype = PL_laststype;	2465	data->laststype = PL_laststype;
1954	data->laststatval = PL_laststatval;	2466	data->laststatval = PL_laststatval;
1955	data->statcache = PL_statcache;	2467	data->statcache = PL_statcache;
		2468
		2469	av_extend (av, AvFILLp (defav) + 1 + 1);
		2470
		2471	for (i = 0; i <= AvFILLp (defav); ++i)
		2472	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2473
		2474	av_push (av, data_sv);
		2475
		2476	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2477
		2478	api_ready (self);
1956	}	2479	}
1957	OUTPUT:
1958	RETVAL
1959		2480
1960	void	2481	void
1961	_set_state (char *data_)	2482	_set_state (SV *state)
1962	PROTOTYPE: $	2483	PROTOTYPE: $
1963	CODE:	2484	PPCODE:
1964	{	2485	{
1965	struct io_state data = (void )data_;	2486	AV av = (AV )SvRV (state);
		2487	struct io_state data = (struct io_state )SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2488	int i;
1966		2489
1967	errno = data->errorno;	2490	errno = data->errorno;
1968	PL_laststype = data->laststype;	2491	PL_laststype = data->laststype;
1969	PL_laststatval = data->laststatval;	2492	PL_laststatval = data->laststatval;
1970	PL_statcache = data->statcache;	2493	PL_statcache = data->statcache;
1971	}
1972		2494
		2495	EXTEND (SP, AvFILLp (av));
		2496	for (i = 0; i < AvFILLp (av); ++i)
		2497	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2498	}
		2499
		2500
		2501	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2502
		2503	BOOT:
		2504	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2505
		2506	SV *
		2507	_schedule (...)
		2508	PROTOTYPE: @
		2509	CODE:
		2510	{
		2511	static int incede;
		2512
		2513	api_cede_notself ();
		2514
		2515	++incede;
		2516	while (coro_nready >= incede && api_cede ())
		2517	;
		2518
		2519	sv_setsv (sv_activity, &PL_sv_undef);
		2520	if (coro_nready >= incede)
		2521	{
		2522	PUSHMARK (SP);
		2523	PUTBACK;
		2524	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2525	SPAGAIN;
		2526	}
		2527
		2528	--incede;
		2529	}
		2530
		2531
		2532	MODULE = Coro::State PACKAGE = PerlIO::cede
		2533
		2534	BOOT:
		2535	PerlIO_define_layer (aTHX_ &PerlIO_cede);
		2536

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Comparing Coro/Coro/State.xs (file contents): Revision 1.214 by root, Sat Oct 13 23:19:10 2007 UTC vs. Revision 1.268 by root, Fri Nov 14 06:41:41 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.214 by root, Sat Oct 13 23:19:10 2007 UTC vs.
Revision 1.268 by root, Fri Nov 14 06:41:41 2008 UTC