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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.207 by root, Tue Oct 9 22:29:27 2007 UTC vs.
Revision 1.263 by root, Wed Nov 12 04:49:06 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
		23	# include <inttypes.h> /* most portable stdint.h */
		24	#endif
15		25
16	#ifdef HAVE_MMAP	26	#ifdef HAVE_MMAP
17	# include <unistd.h>	27	# include <unistd.h>
18	# include <sys/mman.h>	28	# include <sys/mman.h>
19	# ifndef MAP_ANONYMOUS	29	# ifndef MAP_ANONYMOUS
…		…
36	# define BOOT_PAGESIZE (void)0	46	# define BOOT_PAGESIZE (void)0
37	#endif	47	#endif
38		48
39	#if CORO_USE_VALGRIND	49	#if CORO_USE_VALGRIND
40	# include <valgrind/valgrind.h>	50	# include <valgrind/valgrind.h>
41	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
42	#else
43	# define REGISTER_STACK(cctx,start,end)
44	#endif	51	#endif
45		52
46	/* the maximum number of idle cctx that will be pooled */	53	/* the maximum number of idle cctx that will be pooled */
47	#define MAX_IDLE_CCTX 8	54	static int cctx_max_idle = 4;
48		55
49	#define PERL_VERSION_ATLEAST(a,b,c) \	56	#define PERL_VERSION_ATLEAST(a,b,c) \
50	(PERL_REVISION > (a) \	57	(PERL_REVISION > (a) \
51	\|\| (PERL_REVISION == (a) \	58	\|\| (PERL_REVISION == (a) \
52	&& (PERL_VERSION > (b) \	59	&& (PERL_VERSION > (b) \
…		…
71	# ifndef IS_PADCONST	78	# ifndef IS_PADCONST
72	# define IS_PADCONST(v) 0	79	# define IS_PADCONST(v) 0
73	# endif	80	# endif
74	#endif	81	#endif
75		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
76	/* 5.8.7 */	101	/* 5.8.7 */
77	#ifndef SvRV_set	102	#ifndef SvRV_set
78	# define SvRV_set(s,v) SvRV(s) = (v)	103	# define SvRV_set(s,v) SvRV(s) = (v)
79	#endif
80
81	/* 5.8.8 */
82	#ifndef GV_NOTQUAL
83	# define GV_NOTQUAL 0
84	#endif
85	#ifndef newSV
86	# define newSV(l) NEWSV(0,l)
87	#endif	104	#endif
88		105
89	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	106	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
90	# undef CORO_STACKGUARD	107	# undef CORO_STACKGUARD
91	#endif	108	#endif
…		…
108		125
109	#if __GNUC__ >= 3	126	#if __GNUC__ >= 3
110	# define attribute(x) __attribute__(x)	127	# define attribute(x) __attribute__(x)
111	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	128	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
112	# define expect(expr,value) __builtin_expect ((expr),(value))	129	# define expect(expr,value) __builtin_expect ((expr),(value))
		130	# define INLINE static inline
113	#else	131	#else
114	# define attribute(x)	132	# define attribute(x)
115	# define BARRIER	133	# define BARRIER
116	# define expect(expr,value) (expr)	134	# define expect(expr,value) (expr)
		135	# define INLINE static
117	#endif	136	#endif
118		137
119	#define expect_false(expr) expect ((expr) != 0, 0)	138	#define expect_false(expr) expect ((expr) != 0, 0)
120	#define expect_true(expr) expect ((expr) != 0, 1)	139	#define expect_true(expr) expect ((expr) != 0, 1)
121		140
122	#define NOINLINE attribute ((noinline))	141	#define NOINLINE attribute ((noinline))
123		142
124	#include "CoroAPI.h"	143	#include "CoroAPI.h"
125		144
126	#ifdef USE_ITHREADS	145	#ifdef USE_ITHREADS
		146
127	static perl_mutex coro_mutex;	147	static perl_mutex coro_lock;
128	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	148	# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
129	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	149	# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0)
		150	# if CORO_PTHREAD
		151	static void *coro_thx;
		152	# endif
		153
130	#else	154	#else
		155
131	# define LOCK (void)0	156	# define LOCK (void)0
132	# define UNLOCK (void)0	157	# define UNLOCK (void)0
133	#endif
134		158
135	#define strpair(const) const, sizeof (const) - 1	159	#endif
		160
		161	# undef LOCK
		162	# define LOCK (void)0
		163	# undef UNLOCK
		164	# define UNLOCK (void)0
136		165
137	/* helper storage struct for Coro::AIO */	166	/* helper storage struct for Coro::AIO */
138	struct io_state	167	struct io_state
139	{	168	{
		169	AV *res;
140	int errorno;	170	int errorno;
141	I32 laststype;	171	I32 laststype; /* U16 in 5.10.0 */
142	int laststatval;	172	int laststatval;
143	Stat_t statcache;	173	Stat_t statcache;
144	};	174	};
145		175
		176	static double (nvtime)(); / so why doesn't it take void? */
		177
		178	static U32 cctx_gen;
146	static size_t coro_stacksize = CORO_STACKSIZE;	179	static size_t cctx_stacksize = CORO_STACKSIZE;
147	static struct CoroAPI coroapi;	180	static struct CoroAPI coroapi;
148	static AV main_mainstack; / used to differentiate between $main and others */	181	static AV main_mainstack; / used to differentiate between $main and others */
149	static JMPENV *main_top_env;	182	static JMPENV *main_top_env;
150	static HV coro_state_stash, coro_stash;	183	static HV coro_state_stash, coro_stash;
151	static SV coro_mortal; / will be freed after next transfer */	184	static volatile SV coro_mortal; / will be freed/thrown after next transfer */
		185	static volatile struct coro *transfer_next;
		186
		187	struct transfer_args
		188	{
		189	struct coro prev, next;
		190	};
152		191
153	static GV irsgv; / $/ */	192	static GV irsgv; / $/ */
154	static GV stdoutgv; / STDOUT /	193	static GV stdoutgv; / STDOUT /
155		194	static SV *rv_diehook;
		195	static SV *rv_warnhook;
156	static HV hv_sig; / %SIG */	196	static HV hv_sig; / %SIG */
157	static SV *sv_diehook;
158	static SV *sv_warnhook;
159		197
160	/* async_pool helper stuff */	198	/* async_pool helper stuff */
161	static SV *sv_pool_rss;	199	static SV *sv_pool_rss;
162	static SV *sv_pool_size;	200	static SV *sv_pool_size;
163	static AV *av_async_pool;	201	static AV *av_async_pool;
		202
		203	/* Coro::AnyEvent */
		204	static SV *sv_activity;
164		205
165	static struct coro_cctx *cctx_first;	206	static struct coro_cctx *cctx_first;
166	static int cctx_count, cctx_idle;	207	static int cctx_count, cctx_idle;
167		208
168	enum {	209	enum {
…		…
186	void idle_sp; / sp of top-level transfer/schedule/cede call */	227	void idle_sp; / sp of top-level transfer/schedule/cede call */
187	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */	228	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
188	JMPENV *top_env;	229	JMPENV *top_env;
189	coro_context cctx;	230	coro_context cctx;
190		231
		232	U32 gen;
191	#if CORO_USE_VALGRIND	233	#if CORO_USE_VALGRIND
192	int valgrind_id;	234	int valgrind_id;
193	#endif	235	#endif
194	unsigned char flags;	236	unsigned char flags;
195	} coro_cctx;	237	} coro_cctx;
…		…
254	#define PRIO_IDLE -3	296	#define PRIO_IDLE -3
255	#define PRIO_MIN -4	297	#define PRIO_MIN -4
256		298
257	/* for Coro.pm */	299	/* for Coro.pm */
258	static SV *coro_current;	300	static SV *coro_current;
		301	static SV *coro_readyhook;
259	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	302	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
260	static int coro_nready;	303	static int coro_nready;
261	static struct coro *coro_first;	304	static struct coro *coro_first;
262		305
263	/ lowlevel stuff ********************************************************/	306	/ lowlevel stuff ********************************************************/
264		307
265	static SV *	308	static SV *
266	coro_get_sv (const char *name, int create)	309	coro_get_sv (pTHX_ const char *name, int create)
267	{	310	{
268	#if PERL_VERSION_ATLEAST (5,9,0)	311	#if PERL_VERSION_ATLEAST (5,10,0)
269	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	312	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
270	get_sv (name, create);	313	get_sv (name, create);
271	#endif	314	#endif
272	return get_sv (name, create);	315	return get_sv (name, create);
273	}	316	}
274		317
275	static AV *	318	static AV *
276	coro_get_av (const char *name, int create)	319	coro_get_av (pTHX_ const char *name, int create)
277	{	320	{
278	#if PERL_VERSION_ATLEAST (5,9,0)	321	#if PERL_VERSION_ATLEAST (5,10,0)
279	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	322	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
280	get_av (name, create);	323	get_av (name, create);
281	#endif	324	#endif
282	return get_av (name, create);	325	return get_av (name, create);
283	}	326	}
284		327
285	static HV *	328	static HV *
286	coro_get_hv (const char *name, int create)	329	coro_get_hv (pTHX_ const char *name, int create)
287	{	330	{
288	#if PERL_VERSION_ATLEAST (5,9,0)	331	#if PERL_VERSION_ATLEAST (5,10,0)
289	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	332	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
290	get_hv (name, create);	333	get_hv (name, create);
291	#endif	334	#endif
292	return get_hv (name, create);	335	return get_hv (name, create);
293	}	336	}
…		…
298	AV *padlist = CvPADLIST (cv);	341	AV *padlist = CvPADLIST (cv);
299	AV newpadlist, newpad;	342	AV newpadlist, newpad;
300		343
301	newpadlist = newAV ();	344	newpadlist = newAV ();
302	AvREAL_off (newpadlist);	345	AvREAL_off (newpadlist);
303	#if PERL_VERSION_ATLEAST (5,9,0)	346	#if PERL_VERSION_ATLEAST (5,10,0)
304	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	347	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
305	#else	348	#else
306	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	349	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
307	#endif	350	#endif
308	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	351	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
309	--AvFILLp (padlist);	352	--AvFILLp (padlist);
310		353
311	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	354	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
312	av_store (newpadlist, 1, (SV *)newpad);	355	av_store (newpadlist, 1, (SV *)newpad);
313		356
314	return newpadlist;	357	return newpadlist;
315	}	358	}
316		359
…		…
346		389
347	/* casting is fun. */	390	/* casting is fun. */
348	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	391	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
349	free_padlist (aTHX_ padlist);	392	free_padlist (aTHX_ padlist);
350		393
351	SvREFCNT_dec (av);	394	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
352		395
353	return 0;	396	return 0;
354	}	397	}
355		398
356	#define PERL_MAGIC_coro PERL_MAGIC_ext	399	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		400	#define CORO_MAGIC_type_state PERL_MAGIC_ext
357		401
358	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	402	static MGVTBL coro_cv_vtbl = {
		403	0, 0, 0, 0,
		404	coro_cv_free
		405	};
359		406
360	#define CORO_MAGIC(cv) \	407	#define CORO_MAGIC(sv, type) \
361	SvMAGIC (cv) \	408	SvMAGIC (sv) \
362	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	409	? SvMAGIC (sv)->mg_type == type \
363	? SvMAGIC (cv) \	410	? SvMAGIC (sv) \
364	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	411	: mg_find (sv, type) \
365	: 0	412	: 0
366		413
367	static struct coro *	414	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		415	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
		416
		417	INLINE struct coro *
368	SvSTATE_ (pTHX_ SV *coro)	418	SvSTATE_ (pTHX_ SV *coro)
369	{	419	{
370	HV *stash;	420	HV *stash;
371	MAGIC *mg;	421	MAGIC *mg;
372		422
…		…
382	/* very slow, but rare, check */	432	/* very slow, but rare, check */
383	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	433	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
384	croak ("Coro::State object required");	434	croak ("Coro::State object required");
385	}	435	}
386		436
387	mg = CORO_MAGIC (coro);	437	mg = CORO_MAGIC_state (coro);
388	return (struct coro *)mg->mg_ptr;	438	return (struct coro *)mg->mg_ptr;
389	}	439	}
390		440
391	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	441	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
392		442
393	/* the next two functions merely cache the padlists */	443	/* the next two functions merely cache the padlists */
394	static void	444	static void
395	get_padlist (pTHX_ CV *cv)	445	get_padlist (pTHX_ CV *cv)
396	{	446	{
397	MAGIC *mg = CORO_MAGIC (cv);	447	MAGIC *mg = CORO_MAGIC_cv (cv);
398	AV *av;	448	AV *av;
399		449
400	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	450	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
401	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	451	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
402	else	452	else
403	{	453	{
404	#if CORO_PREFER_PERL_FUNCTIONS	454	#if CORO_PREFER_PERL_FUNCTIONS
405	/* this is probably cleaner, but also slower? */	455	/* this is probably cleaner? but also slower! */
		456	/* in practise, it seems to be less stable */
406	CV *cp = Perl_cv_clone (cv);	457	CV *cp = Perl_cv_clone (cv);
407	CvPADLIST (cv) = CvPADLIST (cp);	458	CvPADLIST (cv) = CvPADLIST (cp);
408	CvPADLIST (cp) = 0;	459	CvPADLIST (cp) = 0;
409	SvREFCNT_dec (cp);	460	SvREFCNT_dec (cp);
410	#else	461	#else
…		…
414	}	465	}
415		466
416	static void	467	static void
417	put_padlist (pTHX_ CV *cv)	468	put_padlist (pTHX_ CV *cv)
418	{	469	{
419	MAGIC *mg = CORO_MAGIC (cv);	470	MAGIC *mg = CORO_MAGIC_cv (cv);
420	AV *av;	471	AV *av;
421		472
422	if (expect_false (!mg))	473	if (expect_false (!mg))
423	{	474	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
424	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
425	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
426	mg->mg_virtual = &vtbl_coro;
427	mg->mg_obj = (SV *)newAV ();
428	}
429		475
430	av = (AV *)mg->mg_obj;	476	av = (AV *)mg->mg_obj;
431		477
432	if (expect_false (AvFILLp (av) >= AvMAX (av)))	478	if (expect_false (AvFILLp (av) >= AvMAX (av)))
433	av_extend (av, AvMAX (av) + 1);	479	av_extend (av, AvMAX (av) + 1);
…		…
451	GvSV (irsgv) = slot->irsgv;	497	GvSV (irsgv) = slot->irsgv;
452		498
453	#define VAR(name,type) PL_ ## name = slot->name;	499	#define VAR(name,type) PL_ ## name = slot->name;
454	# include "state.h"	500	# include "state.h"
455	#undef VAR	501	#undef VAR
456
457	/hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);/
458	/hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);/
459		502
460	{	503	{
461	dSP;	504	dSP;
462		505
463	CV *cv;	506	CV *cv;
…		…
502		545
503	if (expect_true (CvDEPTH (cv)))	546	if (expect_true (CvDEPTH (cv)))
504	{	547	{
505	EXTEND (SP, 3);	548	EXTEND (SP, 3);
506	PUSHs ((SV *)CvPADLIST (cv));	549	PUSHs ((SV *)CvPADLIST (cv));
507	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	550	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
508	PUSHs ((SV *)cv);	551	PUSHs ((SV *)cv);
509		552
510	CvDEPTH (cv) = 0;	553	CvDEPTH (cv) = 0;
511	get_padlist (aTHX_ cv);	554	get_padlist (aTHX_ cv);
512	}	555	}
…		…
592		635
593	New(54,PL_savestack,24,ANY);	636	New(54,PL_savestack,24,ANY);
594	PL_savestack_ix = 0;	637	PL_savestack_ix = 0;
595	PL_savestack_max = 24;	638	PL_savestack_max = 24;
596		639
597	#if !PERL_VERSION_ATLEAST (5,9,0)	640	#if !PERL_VERSION_ATLEAST (5,10,0)
598	New(54,PL_retstack,4,OP*);	641	New(54,PL_retstack,4,OP*);
599	PL_retstack_ix = 0;	642	PL_retstack_ix = 0;
600	PL_retstack_max = 4;	643	PL_retstack_max = 4;
601	#endif	644	#endif
602	}	645	}
…		…
604		647
605	/*	648	/*
606	* destroy the stacks, the callchain etc...	649	* destroy the stacks, the callchain etc...
607	*/	650	*/
608	static void	651	static void
609	coro_destroy_stacks (pTHX)	652	coro_destruct_stacks (pTHX)
610	{	653	{
611	while (PL_curstackinfo->si_next)	654	while (PL_curstackinfo->si_next)
612	PL_curstackinfo = PL_curstackinfo->si_next;	655	PL_curstackinfo = PL_curstackinfo->si_next;
613		656
614	while (PL_curstackinfo)	657	while (PL_curstackinfo)
…		…
625		668
626	Safefree (PL_tmps_stack);	669	Safefree (PL_tmps_stack);
627	Safefree (PL_markstack);	670	Safefree (PL_markstack);
628	Safefree (PL_scopestack);	671	Safefree (PL_scopestack);
629	Safefree (PL_savestack);	672	Safefree (PL_savestack);
630	#if !PERL_VERSION_ATLEAST (5,9,0)	673	#if !PERL_VERSION_ATLEAST (5,10,0)
631	Safefree (PL_retstack);	674	Safefree (PL_retstack);
632	#endif	675	#endif
633	}	676	}
634		677
635	static size_t	678	static size_t
…		…
651	#undef VAR	694	#undef VAR
652	}	695	}
653	else	696	else
654	slot = coro->slot;	697	slot = coro->slot;
655		698
		699	if (slot)
		700	{
656	rss += sizeof (slot->curstackinfo);	701	rss += sizeof (slot->curstackinfo);
657	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	702	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
658	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	703	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
659	rss += slot->tmps_max * sizeof (SV *);	704	rss += slot->tmps_max * sizeof (SV *);
660	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	705	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
661	rss += slot->scopestack_max * sizeof (I32);	706	rss += slot->scopestack_max * sizeof (I32);
662	rss += slot->savestack_max * sizeof (ANY);	707	rss += slot->savestack_max * sizeof (ANY);
663		708
664	#if !PERL_VERSION_ATLEAST (5,9,0)	709	#if !PERL_VERSION_ATLEAST (5,10,0)
665	rss += slot->retstack_max * sizeof (OP *);	710	rss += slot->retstack_max * sizeof (OP *);
666	#endif	711	#endif
		712	}
667	}	713	}
668		714
669	return rss;	715	return rss;
670	}	716	}
671		717
672	/ coroutine stack handling **********************************************/	718	/ coroutine stack handling **********************************************/
		719
		720	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		721	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		722	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		723
		724	/* apparently < 5.8.8 */
		725	#ifndef MgPV_nolen_const
		726	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		727	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		728	(const char*)(mg)->mg_ptr)
		729	#endif
		730
		731	/* we sometimes need to create the effect of entersub calling us */
		732	#define ENTERSUB_HEAD ENTER; SAVETMPS
		733	/* we somtimes need to create the effect of leaving via entersub */
		734	#define ENTERSUB_TAIL LEAVE
		735
		736	/*
		737	* This overrides the default magic get method of %SIG elements.
		738	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		739	* and instead of tryign to save and restore the hash elements, we just provide
		740	* readback here.
		741	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		742	* not expecting this to actually change the hook. This is a potential problem
		743	* when a schedule happens then, but we ignore this.
		744	*/
		745	static int
		746	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		747	{
		748	const char *s = MgPV_nolen_const (mg);
		749
		750	if (*s == '_')
		751	{
		752	SV **svp = 0;
		753
		754	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		755	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		756
		757	if (svp)
		758	{
		759	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		760	return 0;
		761	}
		762	}
		763
		764	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		765	}
		766
		767	static int
		768	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		769	{
		770	const char *s = MgPV_nolen_const (mg);
		771
		772	if (*s == '_')
		773	{
		774	SV **svp = 0;
		775
		776	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		777	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		778
		779	if (svp)
		780	{
		781	SV old = svp;
		782	*svp = 0;
		783	SvREFCNT_dec (old);
		784	return 0;
		785	}
		786	}
		787
		788	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		789	}
		790
		791	static int
		792	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		793	{
		794	const char *s = MgPV_nolen_const (mg);
		795
		796	if (*s == '_')
		797	{
		798	SV **svp = 0;
		799
		800	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		801	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		802
		803	if (svp)
		804	{
		805	SV old = svp;
		806	*svp = newSVsv (sv);
		807	SvREFCNT_dec (old);
		808	return 0;
		809	}
		810	}
		811
		812	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		813	}
673		814
674	static void	815	static void
675	coro_setup (pTHX_ struct coro *coro)	816	coro_setup (pTHX_ struct coro *coro)
676	{	817	{
677	/*	818	/*
…		…
686	PL_curpm = 0;	827	PL_curpm = 0;
687	PL_curpad = 0;	828	PL_curpad = 0;
688	PL_localizing = 0;	829	PL_localizing = 0;
689	PL_dirty = 0;	830	PL_dirty = 0;
690	PL_restartop = 0;	831	PL_restartop = 0;
691	PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);	832	#if PERL_VERSION_ATLEAST (5,10,0)
692	PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);	833	PL_parser = 0;
		834	#endif
		835
		836	/* recreate the die/warn hooks */
		837	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		838	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
693		839
694	GvSV (PL_defgv) = newSV (0);	840	GvSV (PL_defgv) = newSV (0);
695	GvAV (PL_defgv) = coro->args; coro->args = 0;	841	GvAV (PL_defgv) = coro->args; coro->args = 0;
696	GvSV (PL_errgv) = newSV (0);	842	GvSV (PL_errgv) = newSV (0);
697	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	843	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
698	PL_rs = newSVsv (GvSV (irsgv));	844	PL_rs = newSVsv (GvSV (irsgv));
699	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);	845	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
700		846
701	{	847	{
702	dSP;	848	dSP;
703	LOGOP myop;	849	UNOP myop;
704		850
705	Zero (&myop, 1, LOGOP);	851	Zero (&myop, 1, UNOP);
706	myop.op_next = Nullop;	852	myop.op_next = Nullop;
707	myop.op_flags = OPf_WANT_VOID;	853	myop.op_flags = OPf_WANT_VOID;
708		854
709	PUSHMARK (SP);	855	PUSHMARK (SP);
710	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	856	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
…		…
712	PL_op = (OP *)&myop;	858	PL_op = (OP *)&myop;
713	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	859	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
714	SPAGAIN;	860	SPAGAIN;
715	}	861	}
716		862
717	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	863	/* this newly created coroutine might be run on an existing cctx which most
		864	* likely was suspended in set_stacklevel, called from entersub.
		865	* set_stacklevel doesn't do anything on return, but entersub does LEAVE,
		866	* so we ENTER here for symmetry.
		867	*/
		868	ENTERSUB_HEAD;
718	}	869	}
719		870
720	static void	871	static void
721	coro_destroy (pTHX_ struct coro *coro)	872	coro_destruct (pTHX_ struct coro *coro)
722	{	873	{
723	if (!IN_DESTRUCT)	874	if (!IN_DESTRUCT)
724	{	875	{
725	/* restore all saved variables and stuff */	876	/* restore all saved variables and stuff */
726	LEAVE_SCOPE (0);	877	LEAVE_SCOPE (0);
…		…
748	SvREFCNT_dec (PL_warnhook);	899	SvREFCNT_dec (PL_warnhook);
749		900
750	SvREFCNT_dec (coro->saved_deffh);	901	SvREFCNT_dec (coro->saved_deffh);
751	SvREFCNT_dec (coro->throw);	902	SvREFCNT_dec (coro->throw);
752		903
753	coro_destroy_stacks (aTHX);	904	coro_destruct_stacks (aTHX);
754	}	905	}
755		906
756	static void	907	INLINE void
757	free_coro_mortal (pTHX)	908	free_coro_mortal (pTHX)
758	{	909	{
759	if (expect_true (coro_mortal))	910	if (expect_true (coro_mortal))
760	{	911	{
761	SvREFCNT_dec (coro_mortal);	912	SvREFCNT_dec (coro_mortal);
…		…
795	: cx->blk_gimme == G_SCALAR ? bot + 1	946	: cx->blk_gimme == G_SCALAR ? bot + 1
796	: bot;	947	: bot;
797		948
798	av_extend (av, top - bot);	949	av_extend (av, top - bot);
799	while (bot < top)	950	while (bot < top)
800	av_push (av, SvREFCNT_inc (*bot++));	951	av_push (av, SvREFCNT_inc_NN (*bot++));
801		952
802	PL_runops = RUNOPS_DEFAULT;	953	PL_runops = RUNOPS_DEFAULT;
803	ENTER;	954	ENTER;
804	SAVETMPS;	955	SAVETMPS;
805	EXTEND (SP, 3);	956	EXTEND (SP, 3);
806	PUSHMARK (SP);	957	PUSHMARK (SP);
807	PUSHs (&PL_sv_no);	958	PUSHs (&PL_sv_no);
808	PUSHs (fullname);	959	PUSHs (fullname);
809	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	960	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
810	PUTBACK;	961	PUTBACK;
811	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	962	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
812	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	963	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
813	SPAGAIN;	964	SPAGAIN;
814	FREETMPS;	965	FREETMPS;
815	LEAVE;	966	LEAVE;
816	PL_runops = runops_trace;	967	PL_runops = runops_trace;
…		…
843	SAVETMPS;	994	SAVETMPS;
844	EXTEND (SP, 3);	995	EXTEND (SP, 3);
845	PUSHMARK (SP);	996	PUSHMARK (SP);
846	PUSHs (&PL_sv_yes);	997	PUSHs (&PL_sv_yes);
847	PUSHs (fullname);	998	PUSHs (fullname);
848	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	999	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
849	PUTBACK;	1000	PUTBACK;
850	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	1001	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
851	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1002	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
852	SPAGAIN;	1003	SPAGAIN;
853	FREETMPS;	1004	FREETMPS;
854	LEAVE;	1005	LEAVE;
855	PL_runops = runops_trace;	1006	PL_runops = runops_trace;
…		…
869	PL_runops = RUNOPS_DEFAULT;	1020	PL_runops = RUNOPS_DEFAULT;
870	PUSHMARK (SP);	1021	PUSHMARK (SP);
871	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));	1022	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
872	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));	1023	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
873	PUTBACK;	1024	PUTBACK;
874	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0);	1025	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
875	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1026	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
876	SPAGAIN;	1027	SPAGAIN;
877	FREETMPS;	1028	FREETMPS;
878	LEAVE;	1029	LEAVE;
879	PL_runops = runops_trace;	1030	PL_runops = runops_trace;
…		…
885		1036
886	TAINT_NOT;	1037	TAINT_NOT;
887	return 0;	1038	return 0;
888	}	1039	}
889		1040
		1041	static void
		1042	prepare_set_stacklevel (struct transfer_args ta, struct coro_cctx cctx)
		1043	{
		1044	ta->prev = (struct coro *)cctx;
		1045	ta->next = 0;
		1046	}
		1047
890	/* inject a fake call to Coro::State::_cctx_init into the execution */	1048	/* inject a fake call to Coro::State::_cctx_init into the execution */
891	/* _cctx_init should be careful, as it could be called at almost any time */	1049	/* _cctx_init should be careful, as it could be called at almost any time */
892	/* during execution of a perl program */	1050	/* during execution of a perl program */
		1051	/* also initialises PL_top_env */
893	static void NOINLINE	1052	static void NOINLINE
894	cctx_prepare (pTHX_ coro_cctx *cctx)	1053	cctx_prepare (pTHX_ coro_cctx *cctx)
895	{	1054	{
896	dSP;	1055	dSP;
897	LOGOP myop;	1056	UNOP myop;
898		1057
899	PL_top_env = &PL_start_env;	1058	PL_top_env = &PL_start_env;
900		1059
901	if (cctx->flags & CC_TRACE)	1060	if (cctx->flags & CC_TRACE)
902	PL_runops = runops_trace;	1061	PL_runops = runops_trace;
903		1062
904	Zero (&myop, 1, LOGOP);	1063	Zero (&myop, 1, UNOP);
905	myop.op_next = PL_op;	1064	myop.op_next = PL_op;
906	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	1065	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
907		1066
908	PUSHMARK (SP);	1067	PUSHMARK (SP);
909	EXTEND (SP, 2);	1068	EXTEND (SP, 2);
910	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));	1069	PUSHs (sv_2mortal (newSViv ((IV)cctx)));
911	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	1070	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
912	PUTBACK;	1071	PUTBACK;
913	PL_op = (OP *)&myop;	1072	PL_op = (OP *)&myop;
914	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	1073	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
915	SPAGAIN;	1074	SPAGAIN;
916	}	1075	}
917		1076
		1077	/* the tail of transfer: execute stuff we can only do after a transfer */
		1078	INLINE void
		1079	transfer_tail (pTHX)
		1080	{
		1081	struct coro next = (struct coro )transfer_next;
		1082	assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
		1083	assert (("FATAL: transfer_next was zero in transfer_tail (please report)", next));
		1084
		1085	free_coro_mortal (aTHX);
		1086	UNLOCK;
		1087
		1088	if (expect_false (next->throw))
		1089	{
		1090	SV *exception = sv_2mortal (next->throw);
		1091
		1092	next->throw = 0;
		1093	sv_setsv (ERRSV, exception);
		1094	croak (0);
		1095	}
		1096	}
		1097
918	/*	1098	/*
919	* this is a _very_ stripped down perl interpreter ;)	1099	* this is a _very_ stripped down perl interpreter ;)
920	*/	1100	*/
921	static void	1101	static void
922	cctx_run (void *arg)	1102	cctx_run (void *arg)
923	{	1103	{
		1104	#ifdef USE_ITHREADS
		1105	# if CORO_PTHREAD
		1106	PERL_SET_CONTEXT (coro_thx);
		1107	# endif
		1108	#endif
		1109	{
924	dTHX;	1110	dTHX;
925		1111
926	/* cctx_run is the alternative tail of transfer(), so unlock here. */	1112	/* entersub called ENTER, but we never 'returned', undo that here */
927	UNLOCK;	1113	ENTERSUB_TAIL;
928		1114
929	/* we now skip the entersub that lead to transfer() */	1115	/* we now skip the entersub that did lead to transfer() */
930	PL_op = PL_op->op_next;	1116	PL_op = PL_op->op_next;
931		1117
932	/* inject a fake subroutine call to cctx_init */	1118	/* inject a fake subroutine call to cctx_init */
933	cctx_prepare (aTHX_ (coro_cctx *)arg);	1119	cctx_prepare (aTHX_ (coro_cctx *)arg);
934		1120
		1121	/* cctx_run is the alternative tail of transfer() */
		1122	transfer_tail (aTHX);
		1123
935	/* somebody or something will hit me for both perl_run and PL_restartop */	1124	/* somebody or something will hit me for both perl_run and PL_restartop */
936	PL_restartop = PL_op;	1125	PL_restartop = PL_op;
937	perl_run (PL_curinterp);	1126	perl_run (PL_curinterp);
938		1127
939	/*	1128	/*
940	* If perl-run returns we assume exit() was being called or the coro	1129	* If perl-run returns we assume exit() was being called or the coro
941	* fell off the end, which seems to be the only valid (non-bug)	1130	* fell off the end, which seems to be the only valid (non-bug)
942	* reason for perl_run to return. We try to exit by jumping to the	1131	* reason for perl_run to return. We try to exit by jumping to the
943	* bootstrap-time "top" top_env, as we cannot restore the "main"	1132	* bootstrap-time "top" top_env, as we cannot restore the "main"
944	* coroutine as Coro has no such concept	1133	* coroutine as Coro has no such concept
945	*/	1134	*/
946	PL_top_env = main_top_env;	1135	PL_top_env = main_top_env;
947	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1136	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
		1137	}
948	}	1138	}
949		1139
950	static coro_cctx *	1140	static coro_cctx *
951	cctx_new ()	1141	cctx_new ()
952	{	1142	{
953	coro_cctx *cctx;	1143	coro_cctx *cctx;
		1144
		1145	++cctx_count;
		1146	New (0, cctx, 1, coro_cctx);
		1147
		1148	cctx->gen = cctx_gen;
		1149	cctx->flags = 0;
		1150	cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
		1151
		1152	return cctx;
		1153	}
		1154
		1155	/* create a new cctx only suitable as source */
		1156	static coro_cctx *
		1157	cctx_new_empty ()
		1158	{
		1159	coro_cctx *cctx = cctx_new ();
		1160
		1161	cctx->sptr = 0;
		1162	coro_create (&cctx->cctx, 0, 0, 0, 0);
		1163
		1164	return cctx;
		1165	}
		1166
		1167	/* create a new cctx suitable as destination/running a perl interpreter */
		1168	static coro_cctx *
		1169	cctx_new_run ()
		1170	{
		1171	coro_cctx *cctx = cctx_new ();
954	void *stack_start;	1172	void *stack_start;
955	size_t stack_size;	1173	size_t stack_size;
956		1174
957	++cctx_count;
958
959	Newz (0, cctx, 1, coro_cctx);
960
961	#if HAVE_MMAP	1175	#if HAVE_MMAP
962	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1176	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
963	/* mmap supposedly does allocate-on-write for us */	1177	/* mmap supposedly does allocate-on-write for us */
964	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1178	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
965		1179
966	if (cctx->sptr != (void *)-1)	1180	if (cctx->sptr != (void *)-1)
967	{	1181	{
968	# if CORO_STACKGUARD	1182	#if CORO_STACKGUARD
969	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	1183	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
970	# endif	1184	#endif
971	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	1185	stack_start = (char )cctx->sptr + CORO_STACKGUARD PAGESIZE;
972	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	1186	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
973	cctx->flags \|= CC_MAPPED;	1187	cctx->flags \|= CC_MAPPED;
974	}	1188	}
975	else	1189	else
976	#endif	1190	#endif
977	{	1191	{
978	cctx->ssize = coro_stacksize * (long)sizeof (long);	1192	cctx->ssize = cctx_stacksize * (long)sizeof (long);
979	New (0, cctx->sptr, coro_stacksize, long);	1193	New (0, cctx->sptr, cctx_stacksize, long);
980		1194
981	if (!cctx->sptr)	1195	if (!cctx->sptr)
982	{	1196	{
983	perror ("FATAL: unable to allocate stack for coroutine");	1197	perror ("FATAL: unable to allocate stack for coroutine");
984	_exit (EXIT_FAILURE);	1198	_exit (EXIT_FAILURE);
…		…
986		1200
987	stack_start = cctx->sptr;	1201	stack_start = cctx->sptr;
988	stack_size = cctx->ssize;	1202	stack_size = cctx->ssize;
989	}	1203	}
990		1204
991	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1205	#if CORO_USE_VALGRIND
		1206	cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char )stack_start, (char )stack_start + stack_size);
		1207	#endif
		1208
992	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);	1209	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
993		1210
994	return cctx;	1211	return cctx;
995	}	1212	}
996		1213
…		…
999	{	1216	{
1000	if (!cctx)	1217	if (!cctx)
1001	return;	1218	return;
1002		1219
1003	--cctx_count;	1220	--cctx_count;
		1221	coro_destroy (&cctx->cctx);
1004		1222
		1223	/* coro_transfer creates new, empty cctx's */
		1224	if (cctx->sptr)
		1225	{
1005	#if CORO_USE_VALGRIND	1226	#if CORO_USE_VALGRIND
1006	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1227	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1007	#endif	1228	#endif
1008		1229
1009	#if HAVE_MMAP	1230	#if HAVE_MMAP
1010	if (cctx->flags & CC_MAPPED)	1231	if (cctx->flags & CC_MAPPED)
1011	munmap (cctx->sptr, cctx->ssize);	1232	munmap (cctx->sptr, cctx->ssize);
1012	else	1233	else
1013	#endif	1234	#endif
1014	Safefree (cctx->sptr);	1235	Safefree (cctx->sptr);
		1236	}
1015		1237
1016	Safefree (cctx);	1238	Safefree (cctx);
1017	}	1239	}
1018		1240
1019	/* wether this cctx should be destructed */	1241	/* wether this cctx should be destructed */
1020	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))	1242	#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen \|\| ((cctx)->flags & CC_NOREUSE))
1021		1243
1022	static coro_cctx *	1244	static coro_cctx *
1023	cctx_get (pTHX)	1245	cctx_get (pTHX)
1024	{	1246	{
1025	while (expect_true (cctx_first))	1247	while (expect_true (cctx_first))
…		…
1032	return cctx;	1254	return cctx;
1033		1255
1034	cctx_destroy (cctx);	1256	cctx_destroy (cctx);
1035	}	1257	}
1036		1258
1037	return cctx_new ();	1259	return cctx_new_run ();
1038	}	1260	}
1039		1261
1040	static void	1262	static void
1041	cctx_put (coro_cctx *cctx)	1263	cctx_put (coro_cctx *cctx)
1042	{	1264	{
		1265	assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
		1266
1043	/* free another cctx if overlimit */	1267	/* free another cctx if overlimit */
1044	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))	1268	if (expect_false (cctx_idle >= cctx_max_idle))
1045	{	1269	{
1046	coro_cctx *first = cctx_first;	1270	coro_cctx *first = cctx_first;
1047	cctx_first = first->next;	1271	cctx_first = first->next;
1048	--cctx_idle;	1272	--cctx_idle;
1049		1273
…		…
1069	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1293	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1070		1294
1071	if (expect_false (next->flags & CF_DESTROYED))	1295	if (expect_false (next->flags & CF_DESTROYED))
1072	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1296	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1073		1297
1074	if (
1075	#if PERL_VERSION_ATLEAST (5,9,0)	1298	#if !PERL_VERSION_ATLEAST (5,10,0)
1076	expect_false (PL_parser)
1077	#else
1078	expect_false (PL_lex_state != LEX_NOTPARSING)	1299	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1079	#endif
1080	)
1081	croak ("Coro::State::transfer called while parsing, but this is not supported");	1300	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1301	#endif
1082	}	1302	}
1083	}	1303	}
1084		1304
1085	/* always use the TRANSFER macro */	1305	/* always use the TRANSFER macro */
1086	static void NOINLINE	1306	static void NOINLINE
1087	transfer (pTHX_ struct coro prev, struct coro next)	1307	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1088	{	1308	{
1089	dSTACKLEVEL;	1309	dSTACKLEVEL;
1090		1310
1091	/* sometimes transfer is only called to set idle_sp */	1311	/* sometimes transfer is only called to set idle_sp */
1092	if (expect_false (!next))	1312	if (expect_false (!next))
…		…
1098	{	1318	{
1099	coro_cctx *prev__cctx;	1319	coro_cctx *prev__cctx;
1100		1320
1101	if (expect_false (prev->flags & CF_NEW))	1321	if (expect_false (prev->flags & CF_NEW))
1102	{	1322	{
1103	/* create a new empty context */	1323	/* create a new empty/source context */
1104	Newz (0, prev->cctx, 1, coro_cctx);	1324	prev->cctx = cctx_new_empty ();
1105	prev->flags &= ~CF_NEW;	1325	prev->flags &= ~CF_NEW;
1106	prev->flags \|= CF_RUNNING;	1326	prev->flags \|= CF_RUNNING;
1107	}	1327	}
1108		1328
1109	prev->flags &= ~CF_RUNNING;	1329	prev->flags &= ~CF_RUNNING;
1110	next->flags \|= CF_RUNNING;	1330	next->flags \|= CF_RUNNING;
1111		1331
1112	LOCK;	1332	LOCK;
		1333
		1334	/* first get rid of the old state */
		1335	save_perl (aTHX_ prev);
1113		1336
1114	if (expect_false (next->flags & CF_NEW))	1337	if (expect_false (next->flags & CF_NEW))
1115	{	1338	{
1116	/* need to start coroutine */	1339	/* need to start coroutine */
1117	next->flags &= ~CF_NEW;	1340	next->flags &= ~CF_NEW;
1118	/* first get rid of the old state */
1119	save_perl (aTHX_ prev);
1120	/* setup coroutine call */	1341	/* setup coroutine call */
1121	coro_setup (aTHX_ next);	1342	coro_setup (aTHX_ next);
1122	}	1343	}
1123	else	1344	else
1124	{
1125	/* coroutine already started */
1126	save_perl (aTHX_ prev);
1127	load_perl (aTHX_ next);	1345	load_perl (aTHX_ next);
1128	}
1129		1346
1130	prev__cctx = prev->cctx;	1347	prev__cctx = prev->cctx;
1131		1348
1132	/* possibly "free" the cctx */	1349	/* possibly untie and reuse the cctx */
1133	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1350	if (expect_true (
		1351	prev__cctx->idle_sp == STACKLEVEL
		1352	&& !(prev__cctx->flags & CC_TRACE)
		1353	&& !force_cctx
		1354	))
1134	{	1355	{
1135	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1356	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1136	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1357	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1137		1358
1138	prev->cctx = 0;	1359	prev->cctx = 0;
1139		1360
1140	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1361	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1141	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1362	/* without this the next cctx_get might destroy the prev__cctx while still in use */
…		…
1148		1369
1149	++next->usecount;	1370	++next->usecount;
1150		1371
1151	if (expect_true (!next->cctx))	1372	if (expect_true (!next->cctx))
1152	next->cctx = cctx_get (aTHX);	1373	next->cctx = cctx_get (aTHX);
		1374
		1375	assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
		1376	transfer_next = next;
1153		1377
1154	if (expect_false (prev__cctx != next->cctx))	1378	if (expect_false (prev__cctx != next->cctx))
1155	{	1379	{
1156	prev__cctx->top_env = PL_top_env;	1380	prev__cctx->top_env = PL_top_env;
1157	PL_top_env = next->cctx->top_env;	1381	PL_top_env = next->cctx->top_env;
1158	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1382	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1159	}	1383	}
1160		1384
1161	free_coro_mortal (aTHX);	1385	transfer_tail (aTHX);
1162	UNLOCK;
1163
1164	if (expect_false (prev->throw \|\| next->throw))
1165	{
1166	struct coro *coro = SvSTATE (coro_current);
1167
1168	if (coro->throw)
1169	{
1170	SV *exception = coro->throw;
1171	coro->throw = 0;
1172	sv_setsv (ERRSV, exception);
1173	croak (0);
1174	}
1175	}
1176	}	1386	}
1177	}	1387	}
1178		1388
1179	struct transfer_args
1180	{
1181	struct coro prev, next;
1182	};
1183
1184	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1389	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1185	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1390	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1186		1391
1187	/ high level stuff ******************************************************/	1392	/ high level stuff ******************************************************/
1188		1393
1189	static int	1394	static int
…		…
1213	croak ("FATAL: tried to destroy currently running coroutine");	1418	croak ("FATAL: tried to destroy currently running coroutine");
1214		1419
1215	save_perl (aTHX_ &temp);	1420	save_perl (aTHX_ &temp);
1216	load_perl (aTHX_ coro);	1421	load_perl (aTHX_ coro);
1217		1422
1218	coro_destroy (aTHX_ coro);	1423	coro_destruct (aTHX_ coro);
1219		1424
1220	load_perl (aTHX_ &temp);	1425	load_perl (aTHX_ &temp);
1221		1426
1222	coro->slot = 0;	1427	coro->slot = 0;
1223	}	1428	}
…		…
1283	{	1488	{
1284	dTHX;	1489	dTHX;
1285	struct transfer_args ta;	1490	struct transfer_args ta;
1286		1491
1287	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1492	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1288	TRANSFER (ta);	1493	TRANSFER (ta, 1);
1289	}	1494	}
1290		1495
1291	/ Coro ******************************************************************/	1496	/ Coro ******************************************************************/
1292		1497
1293	static void	1498	static void
…		…
1295	{	1500	{
1296	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1501	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1297	}	1502	}
1298		1503
1299	static SV *	1504	static SV *
1300	coro_deq (pTHX_ int min_prio)	1505	coro_deq (pTHX)
1301	{	1506	{
1302	int prio = PRIO_MAX - PRIO_MIN;	1507	int prio;
1303		1508
1304	min_prio -= PRIO_MIN;
1305	if (min_prio < 0)
1306	min_prio = 0;
1307
1308	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1509	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1309	if (AvFILLp (coro_ready [prio]) >= 0)	1510	if (AvFILLp (coro_ready [prio]) >= 0)
1310	return av_shift (coro_ready [prio]);	1511	return av_shift (coro_ready [prio]);
1311		1512
1312	return 0;	1513	return 0;
1313	}	1514	}
…		…
1315	static int	1516	static int
1316	api_ready (SV *coro_sv)	1517	api_ready (SV *coro_sv)
1317	{	1518	{
1318	dTHX;	1519	dTHX;
1319	struct coro *coro;	1520	struct coro *coro;
		1521	SV *sv_hook;
		1522	void (*xs_hook)(void);
1320		1523
1321	if (SvROK (coro_sv))	1524	if (SvROK (coro_sv))
1322	coro_sv = SvRV (coro_sv);	1525	coro_sv = SvRV (coro_sv);
1323		1526
1324	coro = SvSTATE (coro_sv);	1527	coro = SvSTATE (coro_sv);
…		…
1327	return 0;	1530	return 0;
1328		1531
1329	coro->flags \|= CF_READY;	1532	coro->flags \|= CF_READY;
1330		1533
1331	LOCK;	1534	LOCK;
		1535
		1536	sv_hook = coro_nready ? 0 : coro_readyhook;
		1537	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1538
1332	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1539	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1333	++coro_nready;	1540	++coro_nready;
		1541
1334	UNLOCK;	1542	UNLOCK;
		1543
		1544	if (sv_hook)
		1545	{
		1546	dSP;
		1547
		1548	ENTER;
		1549	SAVETMPS;
		1550
		1551	PUSHMARK (SP);
		1552	PUTBACK;
		1553	call_sv (sv_hook, G_DISCARD);
		1554	SPAGAIN;
		1555
		1556	FREETMPS;
		1557	LEAVE;
		1558	}
		1559
		1560	if (xs_hook)
		1561	xs_hook ();
1335		1562
1336	return 1;	1563	return 1;
1337	}	1564	}
1338		1565
1339	static int	1566	static int
1340	api_is_ready (SV *coro_sv)	1567	api_is_ready (SV *coro_sv)
1341	{	1568	{
1342	dTHX;	1569	dTHX;
		1570
1343	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1571	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1344	}	1572	}
1345		1573
1346	static void	1574	INLINE void
1347	prepare_schedule (pTHX_ struct transfer_args *ta)	1575	prepare_schedule (pTHX_ struct transfer_args *ta)
1348	{	1576	{
1349	SV prev_sv, next_sv;	1577	SV prev_sv, next_sv;
1350		1578
1351	for (;;)	1579	for (;;)
1352	{	1580	{
1353	LOCK;	1581	LOCK;
1354	next_sv = coro_deq (aTHX_ PRIO_MIN);	1582	next_sv = coro_deq (aTHX);
1355		1583
1356	/* nothing to schedule: call the idle handler */	1584	/* nothing to schedule: call the idle handler */
1357	if (expect_false (!next_sv))	1585	if (expect_false (!next_sv))
1358	{	1586	{
1359	dSP;	1587	dSP;
…		…
1363	SAVETMPS;	1591	SAVETMPS;
1364		1592
1365	PUSHMARK (SP);	1593	PUSHMARK (SP);
1366	PUTBACK;	1594	PUTBACK;
1367	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1595	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1596	SPAGAIN;
1368		1597
1369	FREETMPS;	1598	FREETMPS;
1370	LEAVE;	1599	LEAVE;
1371	continue;	1600	continue;
1372	}	1601	}
…		…
1376	/* cannot transfer to destroyed coros, skip and look for next */	1605	/* cannot transfer to destroyed coros, skip and look for next */
1377	if (expect_false (ta->next->flags & CF_DESTROYED))	1606	if (expect_false (ta->next->flags & CF_DESTROYED))
1378	{	1607	{
1379	UNLOCK;	1608	UNLOCK;
1380	SvREFCNT_dec (next_sv);	1609	SvREFCNT_dec (next_sv);
1381	/* coro_nready is already taken care of by destroy */	1610	/* coro_nready has already been taken care of by destroy */
1382	continue;	1611	continue;
1383	}	1612	}
1384		1613
1385	--coro_nready;	1614	--coro_nready;
1386	UNLOCK;	1615	UNLOCK;
…		…
1389		1618
1390	/* free this only after the transfer */	1619	/* free this only after the transfer */
1391	prev_sv = SvRV (coro_current);	1620	prev_sv = SvRV (coro_current);
1392	ta->prev = SvSTATE (prev_sv);	1621	ta->prev = SvSTATE (prev_sv);
1393	TRANSFER_CHECK (*ta);	1622	TRANSFER_CHECK (*ta);
1394	assert (ta->next->flags & CF_READY);	1623	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1395	ta->next->flags &= ~CF_READY;	1624	ta->next->flags &= ~CF_READY;
1396	SvRV_set (coro_current, next_sv);	1625	SvRV_set (coro_current, next_sv);
1397		1626
1398	LOCK;	1627	LOCK;
1399	free_coro_mortal (aTHX);	1628	free_coro_mortal (aTHX);
1400	coro_mortal = prev_sv;	1629	coro_mortal = prev_sv;
1401	UNLOCK;	1630	UNLOCK;
1402	}	1631	}
1403		1632
1404	static void	1633	INLINE void
1405	prepare_cede (pTHX_ struct transfer_args *ta)	1634	prepare_cede (pTHX_ struct transfer_args *ta)
1406	{	1635	{
1407	api_ready (coro_current);	1636	api_ready (coro_current);
1408	prepare_schedule (aTHX_ ta);	1637	prepare_schedule (aTHX_ ta);
1409	}	1638	}
…		…
1427	{	1656	{
1428	dTHX;	1657	dTHX;
1429	struct transfer_args ta;	1658	struct transfer_args ta;
1430		1659
1431	prepare_schedule (aTHX_ &ta);	1660	prepare_schedule (aTHX_ &ta);
1432	TRANSFER (ta);	1661	TRANSFER (ta, 1);
1433	}	1662	}
1434		1663
1435	static int	1664	static int
1436	api_cede (void)	1665	api_cede (void)
1437	{	1666	{
…		…
1440		1669
1441	prepare_cede (aTHX_ &ta);	1670	prepare_cede (aTHX_ &ta);
1442		1671
1443	if (expect_true (ta.prev != ta.next))	1672	if (expect_true (ta.prev != ta.next))
1444	{	1673	{
1445	TRANSFER (ta);	1674	TRANSFER (ta, 1);
1446	return 1;	1675	return 1;
1447	}	1676	}
1448	else	1677	else
1449	return 0;	1678	return 0;
1450	}	1679	}
…		…
1455	dTHX;	1684	dTHX;
1456	struct transfer_args ta;	1685	struct transfer_args ta;
1457		1686
1458	if (prepare_cede_notself (aTHX_ &ta))	1687	if (prepare_cede_notself (aTHX_ &ta))
1459	{	1688	{
1460	TRANSFER (ta);	1689	TRANSFER (ta, 1);
1461	return 1;	1690	return 1;
1462	}	1691	}
1463	else	1692	else
1464	return 0;	1693	return 0;
1465	}	1694	}
…		…
1471	struct coro *coro = SvSTATE (coro_sv);	1700	struct coro *coro = SvSTATE (coro_sv);
1472		1701
1473	if (flags & CC_TRACE)	1702	if (flags & CC_TRACE)
1474	{	1703	{
1475	if (!coro->cctx)	1704	if (!coro->cctx)
1476	coro->cctx = cctx_new ();	1705	coro->cctx = cctx_new_run ();
1477	else if (!(coro->cctx->flags & CC_TRACE))	1706	else if (!(coro->cctx->flags & CC_TRACE))
1478	croak ("cannot enable tracing on coroutine with custom stack");	1707	croak ("cannot enable tracing on coroutine with custom stack");
1479		1708
1480	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));	1709	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
1481	}	1710	}
…		…
1488	else	1717	else
1489	coro->slot->runops = RUNOPS_DEFAULT;	1718	coro->slot->runops = RUNOPS_DEFAULT;
1490	}	1719	}
1491	}	1720	}
1492		1721
		1722	#if 0
		1723	static int
		1724	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1725	{
		1726	AV *padlist;
		1727	AV av = (AV )mg->mg_obj;
		1728
		1729	abort ();
		1730
		1731	return 0;
		1732	}
		1733
		1734	static MGVTBL coro_gensub_vtbl = {
		1735	0, 0, 0, 0,
		1736	coro_gensub_free
		1737	};
		1738	#endif
		1739
		1740	/*****************************************************************************/
		1741	/* PerlIO::cede */
		1742
		1743	typedef struct
		1744	{
		1745	PerlIOBuf base;
		1746	NV next, every;
		1747	} PerlIOCede;
		1748
		1749	static IV
		1750	PerlIOCede_pushed (pTHX_ PerlIO f, const char mode, SV arg, PerlIO_funcs tab)
		1751	{
		1752	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1753
		1754	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1755	self->next = nvtime () + self->every;
		1756
		1757	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1758	}
		1759
		1760	static SV *
		1761	PerlIOCede_getarg (pTHX_ PerlIO f, CLONE_PARAMS param, int flags)
		1762	{
		1763	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1764
		1765	return newSVnv (self->every);
		1766	}
		1767
		1768	static IV
		1769	PerlIOCede_flush (pTHX_ PerlIO *f)
		1770	{
		1771	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1772	double now = nvtime ();
		1773
		1774	if (now >= self->next)
		1775	{
		1776	api_cede ();
		1777	self->next = now + self->every;
		1778	}
		1779
		1780	return PerlIOBuf_flush (aTHX_ f);
		1781	}
		1782
		1783	static PerlIO_funcs PerlIO_cede =
		1784	{
		1785	sizeof(PerlIO_funcs),
		1786	"cede",
		1787	sizeof(PerlIOCede),
		1788	PERLIO_K_DESTRUCT \| PERLIO_K_RAW,
		1789	PerlIOCede_pushed,
		1790	PerlIOBuf_popped,
		1791	PerlIOBuf_open,
		1792	PerlIOBase_binmode,
		1793	PerlIOCede_getarg,
		1794	PerlIOBase_fileno,
		1795	PerlIOBuf_dup,
		1796	PerlIOBuf_read,
		1797	PerlIOBuf_unread,
		1798	PerlIOBuf_write,
		1799	PerlIOBuf_seek,
		1800	PerlIOBuf_tell,
		1801	PerlIOBuf_close,
		1802	PerlIOCede_flush,
		1803	PerlIOBuf_fill,
		1804	PerlIOBase_eof,
		1805	PerlIOBase_error,
		1806	PerlIOBase_clearerr,
		1807	PerlIOBase_setlinebuf,
		1808	PerlIOBuf_get_base,
		1809	PerlIOBuf_bufsiz,
		1810	PerlIOBuf_get_ptr,
		1811	PerlIOBuf_get_cnt,
		1812	PerlIOBuf_set_ptrcnt,
		1813	};
		1814
		1815
1493	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1816	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1494		1817
1495	PROTOTYPES: DISABLE	1818	PROTOTYPES: DISABLE
1496		1819
1497	BOOT:	1820	BOOT:
1498	{	1821	{
1499	#ifdef USE_ITHREADS	1822	#ifdef USE_ITHREADS
1500	MUTEX_INIT (&coro_mutex);	1823	MUTEX_INIT (&coro_lock);
		1824	# if CORO_PTHREAD
		1825	coro_thx = PERL_GET_CONTEXT;
		1826	# endif
1501	#endif	1827	#endif
1502	BOOT_PAGESIZE;	1828	BOOT_PAGESIZE;
1503		1829
1504	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1830	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1505	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1831	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1506		1832
		1833	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1834	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1835	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1836
1507	hv_sig = coro_get_hv ("SIG", TRUE);	1837	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1508	sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);	1838	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1509	sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);	1839	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1510
1511	if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1512	if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1513		1840
1514	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1841	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1515		1842
1516	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1843	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1517	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1844	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1522	main_top_env = PL_top_env;	1849	main_top_env = PL_top_env;
1523		1850
1524	while (main_top_env->je_prev)	1851	while (main_top_env->je_prev)
1525	main_top_env = main_top_env->je_prev;	1852	main_top_env = main_top_env->je_prev;
1526		1853
1527	coroapi.ver = CORO_API_VERSION;	1854	coroapi.ver = CORO_API_VERSION;
		1855	coroapi.rev = CORO_API_REVISION;
1528	coroapi.transfer = api_transfer;	1856	coroapi.transfer = api_transfer;
		1857
		1858	{
		1859	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		1860
		1861	if (!svp) croak ("Time::HiRes is required");
		1862	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
		1863
		1864	nvtime = INT2PTR (double ()(), SvIV (svp));
		1865	}
1529		1866
1530	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1867	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1531	}	1868	}
1532		1869
1533	SV *	1870	SV *
1534	new (char *klass, ...)	1871	new (char *klass, ...)
1535	CODE:	1872	CODE:
1536	{	1873	{
1537	struct coro *coro;	1874	struct coro *coro;
		1875	MAGIC *mg;
1538	HV *hv;	1876	HV *hv;
1539	int i;	1877	int i;
1540		1878
1541	Newz (0, coro, 1, struct coro);	1879	Newz (0, coro, 1, struct coro);
1542	coro->args = newAV ();	1880	coro->args = newAV ();
…		…
1545	if (coro_first) coro_first->prev = coro;	1883	if (coro_first) coro_first->prev = coro;
1546	coro->next = coro_first;	1884	coro->next = coro_first;
1547	coro_first = coro;	1885	coro_first = coro;
1548		1886
1549	coro->hv = hv = newHV ();	1887	coro->hv = hv = newHV ();
1550	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1888	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1889	mg->mg_flags \|= MGf_DUP;
1551	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1890	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1552		1891
1553	av_extend (coro->args, items - 1);	1892	av_extend (coro->args, items - 1);
1554	for (i = 1; i < items; i++)	1893	for (i = 1; i < items; i++)
1555	av_push (coro->args, newSVsv (ST (i)));	1894	av_push (coro->args, newSVsv (ST (i)));
…		…
1561	# function to increase chances that they all will call transfer with the same	1900	# function to increase chances that they all will call transfer with the same
1562	# stack offset	1901	# stack offset
1563	void	1902	void
1564	_set_stacklevel (...)	1903	_set_stacklevel (...)
1565	ALIAS:	1904	ALIAS:
1566	Coro::State::transfer = 1	1905	Coro::State::transfer = 1
1567	Coro::schedule = 2	1906	Coro::schedule = 2
1568	Coro::cede = 3	1907	Coro::cede = 3
1569	Coro::cede_notself = 4	1908	Coro::cede_notself = 4
1570	Coro::Event::next = 5
1571	Coro::Event::next_cancel = 6
1572	PPCODE:	1909	CODE:
1573	{	1910	{
1574	struct transfer_args ta;	1911	struct transfer_args ta;
1575	int repeat = 0;
1576		1912
1577	do	1913	PUTBACK;
		1914	switch (ix)
1578	{	1915	{
1579	switch (ix)
1580	{
1581	case 0:	1916	case 0:
1582	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1917	prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (ST (0)));
1583	ta.next = 0;
1584	break;	1918	break;
1585		1919
1586	case 1:	1920	case 1:
1587	if (items != 2)	1921	if (items != 2)
1588	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1922	croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items);
1589		1923
1590	prepare_transfer (aTHX_ &ta, ST (0), ST (1));	1924	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1591	break;	1925	break;
1592		1926
1593	case 2:	1927	case 2:
1594	prepare_schedule (aTHX_ &ta);	1928	prepare_schedule (aTHX_ &ta);
1595	break;	1929	break;
1596		1930
1597	case 3:	1931	case 3:
1598	prepare_cede (aTHX_ &ta);	1932	prepare_cede (aTHX_ &ta);
1599	break;	1933	break;
1600		1934
1601	case 4:	1935	case 4:
1602	if (!prepare_cede_notself (aTHX_ &ta))	1936	if (!prepare_cede_notself (aTHX_ &ta))
1603	XSRETURN_EMPTY;	1937	XSRETURN_EMPTY;
1604		1938
1605	break;	1939	break;
1606
1607	case 5:
1608	case 6:
1609	if (items != 1)
1610	croak ("Coro::Event::next (watcher) expects one argument, not %d", items);
1611
1612	{
1613	SV *ev = coroapi.coro_event_next (ST (0), ix == 6, GIMME_V != G_VOID);
1614
1615	if (ev)
1616	{
1617	if (GIMME_V != G_VOID)
1618	{
1619	XPUSHs (ev);
1620	XSRETURN (1);
1621	}
1622	else
1623	XSRETURN_EMPTY;
1624	}
1625	}
1626
1627	prepare_schedule (aTHX_ &ta);
1628	repeat = 1;
1629	break;
1630	}
1631
1632	BARRIER;
1633	TRANSFER (ta);
1634	BARRIER;
1635	}	1940	}
1636	while (repeat);	1941	SPAGAIN;
1637		1942
1638	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1943	BARRIER;
1639	XSRETURN_YES;	1944	PUTBACK;
		1945	TRANSFER (ta, 0);
		1946	SPAGAIN; /* might be the sp of a different coroutine now */
		1947	/* be extra careful not to ever do anything after TRANSFER */
1640	}	1948	}
1641		1949
1642	bool	1950	bool
1643	_destroy (SV *coro_sv)	1951	_destroy (SV *coro_sv)
1644	CODE:	1952	CODE:
1645	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1953	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1646	OUTPUT:	1954	OUTPUT:
1647	RETVAL	1955	RETVAL
1648		1956
1649	void	1957	void
1650	_exit (code)	1958	_exit (int code)
1651	int code
1652	PROTOTYPE: $	1959	PROTOTYPE: $
1653	CODE:	1960	CODE:
1654	_exit (code);	1961	_exit (code);
1655		1962
1656	int	1963	int
1657	cctx_stacksize (int new_stacksize = 0)	1964	cctx_stacksize (int new_stacksize = 0)
1658	CODE:	1965	CODE:
1659	RETVAL = coro_stacksize;	1966	RETVAL = cctx_stacksize;
1660	if (new_stacksize)	1967	if (new_stacksize)
		1968	{
1661	coro_stacksize = new_stacksize;	1969	cctx_stacksize = new_stacksize;
		1970	++cctx_gen;
		1971	}
		1972	OUTPUT:
		1973	RETVAL
		1974
		1975	int
		1976	cctx_max_idle (int max_idle = 0)
		1977	CODE:
		1978	RETVAL = cctx_max_idle;
		1979	if (max_idle > 1)
		1980	cctx_max_idle = max_idle;
1662	OUTPUT:	1981	OUTPUT:
1663	RETVAL	1982	RETVAL
1664		1983
1665	int	1984	int
1666	cctx_count ()	1985	cctx_count ()
…		…
1690	call (Coro::State coro, SV *coderef)	2009	call (Coro::State coro, SV *coderef)
1691	ALIAS:	2010	ALIAS:
1692	eval = 1	2011	eval = 1
1693	CODE:	2012	CODE:
1694	{	2013	{
1695	if (coro->mainstack)	2014	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
1696	{	2015	{
1697	struct coro temp;	2016	struct coro temp;
1698		2017
1699	if (!(coro->flags & CF_RUNNING))	2018	if (!(coro->flags & CF_RUNNING))
1700	{	2019	{
		2020	PUTBACK;
1701	save_perl (aTHX_ &temp);	2021	save_perl (aTHX_ &temp);
1702	load_perl (aTHX_ coro);	2022	load_perl (aTHX_ coro);
1703	}	2023	}
1704		2024
1705	{	2025	{
1706	dSP;	2026	dSP;
1707	ENTER;	2027	ENTER;
1708	SAVETMPS;	2028	SAVETMPS;
		2029	PUTBACK;
		2030	PUSHSTACK;
1709	PUSHMARK (SP);	2031	PUSHMARK (SP);
1710	PUTBACK;
1711		2032
1712	if (ix)	2033	if (ix)
1713	eval_sv (coderef, 0);	2034	eval_sv (coderef, 0);
1714	else	2035	else
1715	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	2036	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1716		2037
		2038	POPSTACK;
1717	SPAGAIN;	2039	SPAGAIN;
1718	FREETMPS;	2040	FREETMPS;
1719	LEAVE;	2041	LEAVE;
1720	PUTBACK;	2042	PUTBACK;
1721	}	2043	}
1722		2044
1723	if (!(coro->flags & CF_RUNNING))	2045	if (!(coro->flags & CF_RUNNING))
1724	{	2046	{
1725	save_perl (aTHX_ coro);	2047	save_perl (aTHX_ coro);
1726	load_perl (aTHX_ &temp);	2048	load_perl (aTHX_ &temp);
		2049	SPAGAIN;
1727	}	2050	}
1728	}	2051	}
1729	}	2052	}
1730		2053
1731	SV *	2054	SV *
…		…
1740	RETVAL = boolSV (coro->flags & ix);	2063	RETVAL = boolSV (coro->flags & ix);
1741	OUTPUT:	2064	OUTPUT:
1742	RETVAL	2065	RETVAL
1743		2066
1744	void	2067	void
		2068	throw (Coro::State self, SV *throw = &PL_sv_undef)
		2069	PROTOTYPE: $;$
		2070	CODE:
		2071	SvREFCNT_dec (self->throw);
		2072	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		2073
		2074	void
1745	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	2075	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1746		2076
1747	SV *	2077	SV *
1748	has_stack (Coro::State coro)	2078	has_cctx (Coro::State coro)
1749	PROTOTYPE: $	2079	PROTOTYPE: $
1750	CODE:	2080	CODE:
1751	RETVAL = boolSV (!!coro->cctx);	2081	RETVAL = boolSV (!!coro->cctx);
1752	OUTPUT:	2082	OUTPUT:
1753	RETVAL	2083	RETVAL
…		…
1758	CODE:	2088	CODE:
1759	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;	2089	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1760	OUTPUT:	2090	OUTPUT:
1761	RETVAL	2091	RETVAL
1762		2092
1763	IV	2093	UV
1764	rss (Coro::State coro)	2094	rss (Coro::State coro)
1765	PROTOTYPE: $	2095	PROTOTYPE: $
1766	ALIAS:	2096	ALIAS:
1767	usecount = 1	2097	usecount = 1
1768	CODE:	2098	CODE:
…		…
1772	case 1: RETVAL = coro->usecount; break;	2102	case 1: RETVAL = coro->usecount; break;
1773	}	2103	}
1774	OUTPUT:	2104	OUTPUT:
1775	RETVAL	2105	RETVAL
1776		2106
		2107	void
		2108	force_cctx ()
		2109	CODE:
		2110	struct coro *coro = SvSTATE (coro_current);
		2111	coro->cctx->idle_sp = 0;
		2112
		2113	void
		2114	swap_defsv (Coro::State self)
		2115	PROTOTYPE: $
		2116	ALIAS:
		2117	swap_defav = 1
		2118	CODE:
		2119	if (!self->slot)
		2120	croak ("cannot swap state with coroutine that has no saved state");
		2121	else
		2122	{
		2123	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2124	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		2125
		2126	SV tmp = src; src = dst; *dst = tmp;
		2127	}
1777		2128
1778	MODULE = Coro::State PACKAGE = Coro	2129	MODULE = Coro::State PACKAGE = Coro
1779		2130
1780	BOOT:	2131	BOOT:
1781	{	2132	{
1782	int i;	2133	int i;
1783		2134
1784	sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1785	sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1786	av_async_pool = coro_get_av ("Coro::async_pool", TRUE);	2135	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		2136	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		2137	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1787		2138
1788	coro_current = coro_get_sv ("Coro::current", FALSE);	2139	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1789	SvREADONLY_on (coro_current);	2140	SvREADONLY_on (coro_current);
1790		2141
1791	coro_stash = gv_stashpv ("Coro", TRUE);	2142	coro_stash = gv_stashpv ("Coro", TRUE);
1792		2143
1793	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2144	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
1799		2150
1800	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	2151	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1801	coro_ready[i] = newAV ();	2152	coro_ready[i] = newAV ();
1802		2153
1803	{	2154	{
1804	SV *sv = perl_get_sv ("Coro::API", TRUE);	2155	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
1805	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1806		2156
1807	coroapi.schedule = api_schedule;	2157	coroapi.schedule = api_schedule;
1808	coroapi.cede = api_cede;	2158	coroapi.cede = api_cede;
1809	coroapi.cede_notself = api_cede_notself;	2159	coroapi.cede_notself = api_cede_notself;
1810	coroapi.ready = api_ready;	2160	coroapi.ready = api_ready;
…		…
1821	void	2171	void
1822	_set_current (SV *current)	2172	_set_current (SV *current)
1823	PROTOTYPE: $	2173	PROTOTYPE: $
1824	CODE:	2174	CODE:
1825	SvREFCNT_dec (SvRV (coro_current));	2175	SvREFCNT_dec (SvRV (coro_current));
1826	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	2176	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2177
		2178	void
		2179	_set_readyhook (SV *hook)
		2180	PROTOTYPE: $
		2181	CODE:
		2182	LOCK;
		2183	SvREFCNT_dec (coro_readyhook);
		2184	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2185	UNLOCK;
1827		2186
1828	int	2187	int
1829	prio (Coro::State coro, int newprio = 0)	2188	prio (Coro::State coro, int newprio = 0)
1830	ALIAS:	2189	ALIAS:
1831	nice = 1	2190	nice = 1
…		…
1861	CODE:	2220	CODE:
1862	RETVAL = coro_nready;	2221	RETVAL = coro_nready;
1863	OUTPUT:	2222	OUTPUT:
1864	RETVAL	2223	RETVAL
1865		2224
1866	void
1867	throw (Coro::State self, SV *throw = &PL_sv_undef)
1868	PROTOTYPE: $;$
1869	CODE:
1870	SvREFCNT_dec (self->throw);
1871	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1872
1873	# for async_pool speedup	2225	# for async_pool speedup
1874	void	2226	void
1875	_pool_1 (SV *cb)	2227	_pool_1 (SV *cb)
1876	CODE:	2228	CODE:
1877	{	2229	{
1878	struct coro *coro = SvSTATE (coro_current);	2230	struct coro *coro = SvSTATE (coro_current);
1879	HV hv = (HV )SvRV (coro_current);	2231	HV hv = (HV )SvRV (coro_current);
1880	AV *defav = GvAV (PL_defgv);	2232	AV *defav = GvAV (PL_defgv);
1881	SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);	2233	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1882	AV *invoke_av;	2234	AV *invoke_av;
1883	int i, len;	2235	int i, len;
1884		2236
1885	if (!invoke)	2237	if (!invoke)
		2238	{
		2239	SV *old = PL_diehook;
		2240	PL_diehook = 0;
		2241	SvREFCNT_dec (old);
1886	croak ("\3async_pool terminate\2\n");	2242	croak ("\3async_pool terminate\2\n");
		2243	}
1887		2244
1888	SvREFCNT_dec (coro->saved_deffh);	2245	SvREFCNT_dec (coro->saved_deffh);
1889	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2246	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1890		2247
1891	hv_store (hv, "desc", sizeof ("desc") - 1,	2248	hv_store (hv, "desc", sizeof ("desc") - 1,
1892	newSVpvn (strpair ("[async_pool]")), 0);	2249	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1893		2250
1894	invoke_av = (AV *)SvRV (invoke);	2251	invoke_av = (AV *)SvRV (invoke);
1895	len = av_len (invoke_av);	2252	len = av_len (invoke_av);
1896		2253
1897	sv_setsv (cb, AvARRAY (invoke_av)[0]);	2254	sv_setsv (cb, AvARRAY (invoke_av)[0]);
1898		2255
1899	if (len > 0)	2256	if (len > 0)
1900	{	2257	{
1901	av_fill (defav, len - 1);	2258	av_fill (defav, len - 1);
1902	for (i = 0; i < len; ++i)	2259	for (i = 0; i < len; ++i)
1903	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2260	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1904	}	2261	}
1905		2262
1906	SvREFCNT_dec (invoke);	2263	SvREFCNT_dec (invoke);
1907	}	2264	}
1908		2265
…		…
1915	sv_setsv (cb, &PL_sv_undef);	2272	sv_setsv (cb, &PL_sv_undef);
1916		2273
1917	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2274	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1918	coro->saved_deffh = 0;	2275	coro->saved_deffh = 0;
1919		2276
1920	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2277	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1921	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2278	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2279	{
		2280	SV *old = PL_diehook;
		2281	PL_diehook = 0;
		2282	SvREFCNT_dec (old);
1922	croak ("\3async_pool terminate\2\n");	2283	croak ("\3async_pool terminate\2\n");
		2284	}
1923		2285
1924	av_clear (GvAV (PL_defgv));	2286	av_clear (GvAV (PL_defgv));
1925	hv_store ((HV *)SvRV (coro_current), strpair ("desc"),	2287	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1926	newSVpvn (strpair ("[async_pool idle]")), 0);	2288	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1927		2289
1928	coro->prio = 0;	2290	coro->prio = 0;
1929		2291
1930	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2292	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1931	api_trace (coro_current, 0);	2293	api_trace (coro_current, 0);
1932		2294
1933	av_push (av_async_pool, newSVsv (coro_current));	2295	av_push (av_async_pool, newSVsv (coro_current));
1934	}	2296	}
1935		2297
		2298	#if 0
		2299
		2300	void
		2301	_generator_call (...)
		2302	PROTOTYPE: @
		2303	PPCODE:
		2304	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2305	xxxx
		2306	abort ();
		2307
		2308	SV *
		2309	gensub (SV *sub, ...)
		2310	PROTOTYPE: &;@
		2311	CODE:
		2312	{
		2313	struct coro *coro;
		2314	MAGIC *mg;
		2315	CV *xcv;
		2316	CV ncv = (CV )newSV_type (SVt_PVCV);
		2317	int i;
		2318
		2319	CvGV (ncv) = CvGV (cv);
		2320	CvFILE (ncv) = CvFILE (cv);
		2321
		2322	Newz (0, coro, 1, struct coro);
		2323	coro->args = newAV ();
		2324	coro->flags = CF_NEW;
		2325
		2326	av_extend (coro->args, items - 1);
		2327	for (i = 1; i < items; i++)
		2328	av_push (coro->args, newSVsv (ST (i)));
		2329
		2330	CvISXSUB_on (ncv);
		2331	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2332
		2333	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2334
		2335	CvXSUB (ncv) = CvXSUB (xcv);
		2336	CvANON_on (ncv);
		2337
		2338	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2339	RETVAL = newRV_noinc ((SV *)ncv);
		2340	}
		2341	OUTPUT:
		2342	RETVAL
		2343
		2344	#endif
		2345
1936		2346
1937	MODULE = Coro::State PACKAGE = Coro::AIO	2347	MODULE = Coro::State PACKAGE = Coro::AIO
1938		2348
1939	SV *	2349	void
1940	_get_state ()	2350	_get_state (SV *self)
1941	CODE:	2351	PPCODE:
1942	{	2352	{
1943	struct io_state *data;	2353	AV *defav = GvAV (PL_defgv);
1944		2354	AV *av = newAV ();
		2355	int i;
1945	RETVAL = newSV (sizeof (struct io_state));	2356	SV *data_sv = newSV (sizeof (struct io_state));
1946	data = (struct io_state *)SvPVX (RETVAL);	2357	struct io_state data = (struct io_state )SvPVX (data_sv);
1947	SvCUR_set (RETVAL, sizeof (struct io_state));	2358	SvCUR_set (data_sv, sizeof (struct io_state));
1948	SvPOK_only (RETVAL);	2359	SvPOK_only (data_sv);
1949		2360
1950	data->errorno = errno;	2361	data->errorno = errno;
1951	data->laststype = PL_laststype;	2362	data->laststype = PL_laststype;
1952	data->laststatval = PL_laststatval;	2363	data->laststatval = PL_laststatval;
1953	data->statcache = PL_statcache;	2364	data->statcache = PL_statcache;
		2365
		2366	av_extend (av, AvFILLp (defav) + 1 + 1);
		2367
		2368	for (i = 0; i <= AvFILLp (defav); ++i)
		2369	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2370
		2371	av_push (av, data_sv);
		2372
		2373	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2374
		2375	api_ready (self);
1954	}	2376	}
1955	OUTPUT:
1956	RETVAL
1957		2377
1958	void	2378	void
1959	_set_state (char *data_)	2379	_set_state (SV *state)
1960	PROTOTYPE: $	2380	PROTOTYPE: $
1961	CODE:	2381	PPCODE:
1962	{	2382	{
1963	struct io_state data = (void )data_;	2383	AV av = (AV )SvRV (state);
		2384	struct io_state data = (struct io_state )SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2385	int i;
1964		2386
1965	errno = data->errorno;	2387	errno = data->errorno;
1966	PL_laststype = data->laststype;	2388	PL_laststype = data->laststype;
1967	PL_laststatval = data->laststatval;	2389	PL_laststatval = data->laststatval;
1968	PL_statcache = data->statcache;	2390	PL_statcache = data->statcache;
1969	}
1970		2391
		2392	EXTEND (SP, AvFILLp (av));
		2393	for (i = 0; i < AvFILLp (av); ++i)
		2394	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2395	}
		2396
		2397
		2398	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2399
		2400	BOOT:
		2401	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2402
		2403	SV *
		2404	_schedule (...)
		2405	PROTOTYPE: @
		2406	CODE:
		2407	{
		2408	static int incede;
		2409
		2410	api_cede_notself ();
		2411
		2412	++incede;
		2413	while (coro_nready >= incede && api_cede ())
		2414	;
		2415
		2416	sv_setsv (sv_activity, &PL_sv_undef);
		2417	if (coro_nready >= incede)
		2418	{
		2419	PUSHMARK (SP);
		2420	PUTBACK;
		2421	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2422	SPAGAIN;
		2423	}
		2424
		2425	--incede;
		2426	}
		2427
		2428
		2429	MODULE = Coro::State PACKAGE = PerlIO::cede
		2430
		2431	BOOT:
		2432	PerlIO_define_layer (aTHX_ &PerlIO_cede);
		2433

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Comparing Coro/Coro/State.xs (file contents): Revision 1.207 by root, Tue Oct 9 22:29:27 2007 UTC vs. Revision 1.263 by root, Wed Nov 12 04:49:06 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.207 by root, Tue Oct 9 22:29:27 2007 UTC vs.
Revision 1.263 by root, Wed Nov 12 04:49:06 2008 UTC