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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.200 by root, Sun Oct 7 15:08:23 2007 UTC vs.
Revision 1.258 by root, Sun Nov 9 23:08:49 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
…		…
42	#else	52	#else
43	# define REGISTER_STACK(cctx,start,end)	53	# define REGISTER_STACK(cctx,start,end)
44	#endif	54	#endif
45		55
46	/* the maximum number of idle cctx that will be pooled */	56	/* the maximum number of idle cctx that will be pooled */
47	#define MAX_IDLE_CCTX 8	57	static int cctx_max_idle = 4;
48		58
49	#define PERL_VERSION_ATLEAST(a,b,c) \	59	#define PERL_VERSION_ATLEAST(a,b,c) \
50	(PERL_REVISION > (a) \	60	(PERL_REVISION > (a) \
51	\|\| (PERL_REVISION == (a) \	61	\|\| (PERL_REVISION == (a) \
52	&& (PERL_VERSION > (b) \	62	&& (PERL_VERSION > (b) \
…		…
71	# ifndef IS_PADCONST	81	# ifndef IS_PADCONST
72	# define IS_PADCONST(v) 0	82	# define IS_PADCONST(v) 0
73	# endif	83	# endif
74	#endif	84	#endif
75		85
		86	/* 5.11 */
		87	#ifndef CxHASARGS
		88	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		89	#endif
		90
		91	/* 5.10.0 */
		92	#ifndef SvREFCNT_inc_NN
		93	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
		94	#endif
		95
		96	/* 5.8.8 */
		97	#ifndef GV_NOTQUAL
		98	# define GV_NOTQUAL 0
		99	#endif
		100	#ifndef newSV
		101	# define newSV(l) NEWSV(0,l)
		102	#endif
		103
76	/* 5.8.7 */	104	/* 5.8.7 */
77	#ifndef SvRV_set	105	#ifndef SvRV_set
78	# define SvRV_set(s,v) SvRV(s) = (v)	106	# 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	107	#endif
88		108
89	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	109	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
90	# undef CORO_STACKGUARD	110	# undef CORO_STACKGUARD
91	#endif	111	#endif
…		…
122	#define NOINLINE attribute ((noinline))	142	#define NOINLINE attribute ((noinline))
123		143
124	#include "CoroAPI.h"	144	#include "CoroAPI.h"
125		145
126	#ifdef USE_ITHREADS	146	#ifdef USE_ITHREADS
		147
127	static perl_mutex coro_mutex;	148	static perl_mutex coro_lock;
128	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	149	# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
129	# 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
130	#else	155	#else
		156
131	# define LOCK (void)0	157	# define LOCK (void)0
132	# define UNLOCK (void)0	158	# define UNLOCK (void)0
133	#endif
134		159
135	#define strpair(const) const, sizeof (const) - 1	160	#endif
		161
		162	# undef LOCK
		163	# define LOCK (void)0
		164	# undef UNLOCK
		165	# define UNLOCK (void)0
136		166
137	/* helper storage struct for Coro::AIO */	167	/* helper storage struct for Coro::AIO */
138	struct io_state	168	struct io_state
139	{	169	{
		170	AV *res;
140	int errorno;	171	int errorno;
141	I32 laststype;	172	I32 laststype; /* U16 in 5.10.0 */
142	int laststatval;	173	int laststatval;
143	Stat_t statcache;	174	Stat_t statcache;
144	};	175	};
145		176
		177	static double (nvtime)(); / so why doesn't it take void? */
		178
		179	static U32 cctx_gen;
146	static size_t coro_stacksize = CORO_STACKSIZE;	180	static size_t cctx_stacksize = CORO_STACKSIZE;
147	static struct CoroAPI coroapi;	181	static struct CoroAPI coroapi;
148	static AV main_mainstack; / used to differentiate between $main and others */	182	static AV main_mainstack; / used to differentiate between $main and others */
149	static JMPENV *main_top_env;	183	static JMPENV *main_top_env;
150	static HV coro_state_stash, coro_stash;	184	static HV coro_state_stash, coro_stash;
151	static SV coro_mortal; / will be freed after next transfer */	185	static volatile SV coro_mortal; / will be freed/thrown after next transfer */
152		186
153	static GV irsgv; / $/ */	187	static GV irsgv; / $/ */
154	static GV stdoutgv; / STDOUT /	188	static GV stdoutgv; / STDOUT /
155		189	static SV *rv_diehook;
		190	static SV *rv_warnhook;
156	static HV hv_sig; / %SIG */	191	static HV hv_sig; / %SIG */
157	static SV *sv_diehook;
158	static SV *sv_warnhook;
159		192
160	/* async_pool helper stuff */	193	/* async_pool helper stuff */
161	static SV *sv_pool_rss;	194	static SV *sv_pool_rss;
162	static SV *sv_pool_size;	195	static SV *sv_pool_size;
163	static AV *av_async_pool;	196	static AV *av_async_pool;
		197
		198	/* Coro::AnyEvent */
		199	static SV *sv_activity;
164		200
165	static struct coro_cctx *cctx_first;	201	static struct coro_cctx *cctx_first;
166	static int cctx_count, cctx_idle;	202	static int cctx_count, cctx_idle;
167		203
168	enum {	204	enum {
…		…
186	void idle_sp; / sp of top-level transfer/schedule/cede call */	222	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 */	223	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
188	JMPENV *top_env;	224	JMPENV *top_env;
189	coro_context cctx;	225	coro_context cctx;
190		226
		227	U32 gen;
191	#if CORO_USE_VALGRIND	228	#if CORO_USE_VALGRIND
192	int valgrind_id;	229	int valgrind_id;
193	#endif	230	#endif
194	unsigned char flags;	231	unsigned char flags;
195	} coro_cctx;	232	} coro_cctx;
…		…
221		258
222	/* process data */	259	/* process data */
223	AV *mainstack;	260	AV *mainstack;
224	perl_slots slot; / basically the saved sp */	261	perl_slots slot; / basically the saved sp */
225		262
226	/* data associated with this coroutine (initial args) */	263	AV args; / data associated with this coroutine (initial args) */
227	AV *args;	264	int refcnt; /* coroutines are refcounted, yes */
228	int refcnt;
229	int flags; /* CF_ flags */	265	int flags; /* CF_ flags */
		266	HV hv; / the perl hash associated with this coro, if any */
230		267
231	/* statistics */	268	/* statistics */
232	int usecount; /* number of transfers to this coro */	269	int usecount; /* number of transfers to this coro */
233		270
234	/* coro process data */	271	/* coro process data */
235	int prio;	272	int prio;
236	SV *throw;	273	SV throw; / exception to be thrown */
237		274
238	/* async_pool */	275	/* async_pool */
239	SV *saved_deffh;	276	SV *saved_deffh;
240		277
241	/* linked list */	278	/* linked list */
242	struct coro next, prev;	279	struct coro next, prev;
243	HV hv; / the perl hash associated with this coro, if any */
244	};	280	};
245		281
246	typedef struct coro *Coro__State;	282	typedef struct coro *Coro__State;
247	typedef struct coro *Coro__State_or_hashref;	283	typedef struct coro *Coro__State_or_hashref;
248		284
…		…
255	#define PRIO_IDLE -3	291	#define PRIO_IDLE -3
256	#define PRIO_MIN -4	292	#define PRIO_MIN -4
257		293
258	/* for Coro.pm */	294	/* for Coro.pm */
259	static SV *coro_current;	295	static SV *coro_current;
		296	static SV *coro_readyhook;
260	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	297	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
261	static int coro_nready;	298	static int coro_nready;
262	static struct coro *coro_first;	299	static struct coro *coro_first;
263		300
264	/ lowlevel stuff ********************************************************/	301	/ lowlevel stuff ********************************************************/
265		302
266	static SV *	303	static SV *
267	coro_get_sv (const char *name, int create)	304	coro_get_sv (pTHX_ const char *name, int create)
268	{	305	{
269	#if PERL_VERSION_ATLEAST (5,9,0)	306	#if PERL_VERSION_ATLEAST (5,10,0)
270	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	307	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
271	get_sv (name, create);	308	get_sv (name, create);
272	#endif	309	#endif
273	return get_sv (name, create);	310	return get_sv (name, create);
274	}	311	}
275		312
276	static AV *	313	static AV *
277	coro_get_av (const char *name, int create)	314	coro_get_av (pTHX_ const char *name, int create)
278	{	315	{
279	#if PERL_VERSION_ATLEAST (5,9,0)	316	#if PERL_VERSION_ATLEAST (5,10,0)
280	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	317	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
281	get_av (name, create);	318	get_av (name, create);
282	#endif	319	#endif
283	return get_av (name, create);	320	return get_av (name, create);
284	}	321	}
285		322
286	static HV *	323	static HV *
287	coro_get_hv (const char *name, int create)	324	coro_get_hv (pTHX_ const char *name, int create)
288	{	325	{
289	#if PERL_VERSION_ATLEAST (5,9,0)	326	#if PERL_VERSION_ATLEAST (5,10,0)
290	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	327	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
291	get_hv (name, create);	328	get_hv (name, create);
292	#endif	329	#endif
293	return get_hv (name, create);	330	return get_hv (name, create);
294	}	331	}
…		…
299	AV *padlist = CvPADLIST (cv);	336	AV *padlist = CvPADLIST (cv);
300	AV newpadlist, newpad;	337	AV newpadlist, newpad;
301		338
302	newpadlist = newAV ();	339	newpadlist = newAV ();
303	AvREAL_off (newpadlist);	340	AvREAL_off (newpadlist);
304	#if PERL_VERSION_ATLEAST (5,9,0)	341	#if PERL_VERSION_ATLEAST (5,10,0)
305	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	342	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
306	#else	343	#else
307	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	344	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
308	#endif	345	#endif
309	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	346	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
310	--AvFILLp (padlist);	347	--AvFILLp (padlist);
311		348
312	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	349	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
313	av_store (newpadlist, 1, (SV *)newpad);	350	av_store (newpadlist, 1, (SV *)newpad);
314		351
315	return newpadlist;	352	return newpadlist;
316	}	353	}
317		354
…		…
347		384
348	/* casting is fun. */	385	/* casting is fun. */
349	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	386	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
350	free_padlist (aTHX_ padlist);	387	free_padlist (aTHX_ padlist);
351		388
352	SvREFCNT_dec (av);	389	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
353		390
354	return 0;	391	return 0;
355	}	392	}
356		393
357	#define PERL_MAGIC_coro PERL_MAGIC_ext	394	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		395	#define CORO_MAGIC_type_state PERL_MAGIC_ext
358		396
359	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	397	static MGVTBL coro_cv_vtbl = {
		398	0, 0, 0, 0,
		399	coro_cv_free
		400	};
360		401
361	#define CORO_MAGIC(cv) \	402	#define CORO_MAGIC(sv, type) \
362	SvMAGIC (cv) \	403	SvMAGIC (sv) \
363	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	404	? SvMAGIC (sv)->mg_type == type \
364	? SvMAGIC (cv) \	405	? SvMAGIC (sv) \
365	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	406	: mg_find (sv, type) \
366	: 0	407	: 0
		408
		409	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		410	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
367		411
368	static struct coro *	412	static struct coro *
369	SvSTATE_ (pTHX_ SV *coro)	413	SvSTATE_ (pTHX_ SV *coro)
370	{	414	{
371	HV *stash;	415	HV *stash;
…		…
383	/* very slow, but rare, check */	427	/* very slow, but rare, check */
384	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	428	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
385	croak ("Coro::State object required");	429	croak ("Coro::State object required");
386	}	430	}
387		431
388	mg = CORO_MAGIC (coro);	432	mg = CORO_MAGIC_state (coro);
389	return (struct coro *)mg->mg_ptr;	433	return (struct coro *)mg->mg_ptr;
390	}	434	}
391		435
392	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	436	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
393		437
394	/* the next two functions merely cache the padlists */	438	/* the next two functions merely cache the padlists */
395	static void	439	static void
396	get_padlist (pTHX_ CV *cv)	440	get_padlist (pTHX_ CV *cv)
397	{	441	{
398	MAGIC *mg = CORO_MAGIC (cv);	442	MAGIC *mg = CORO_MAGIC_cv (cv);
399	AV *av;	443	AV *av;
400		444
401	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	445	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
402	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	446	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
403	else	447	else
404	{	448	{
405	#if CORO_PREFER_PERL_FUNCTIONS	449	#if CORO_PREFER_PERL_FUNCTIONS
406	/* this is probably cleaner, but also slower? */	450	/* this is probably cleaner? but also slower! */
		451	/* in practise, it seems to be less stable */
407	CV *cp = Perl_cv_clone (cv);	452	CV *cp = Perl_cv_clone (cv);
408	CvPADLIST (cv) = CvPADLIST (cp);	453	CvPADLIST (cv) = CvPADLIST (cp);
409	CvPADLIST (cp) = 0;	454	CvPADLIST (cp) = 0;
410	SvREFCNT_dec (cp);	455	SvREFCNT_dec (cp);
411	#else	456	#else
…		…
415	}	460	}
416		461
417	static void	462	static void
418	put_padlist (pTHX_ CV *cv)	463	put_padlist (pTHX_ CV *cv)
419	{	464	{
420	MAGIC *mg = CORO_MAGIC (cv);	465	MAGIC *mg = CORO_MAGIC_cv (cv);
421	AV *av;	466	AV *av;
422		467
423	if (expect_false (!mg))	468	if (expect_false (!mg))
424	{	469	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
425	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
426	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
427	mg->mg_virtual = &vtbl_coro;
428	mg->mg_obj = (SV *)newAV ();
429	}
430		470
431	av = (AV *)mg->mg_obj;	471	av = (AV *)mg->mg_obj;
432		472
433	if (expect_false (AvFILLp (av) >= AvMAX (av)))	473	if (expect_false (AvFILLp (av) >= AvMAX (av)))
434	av_extend (av, AvMAX (av) + 1);	474	av_extend (av, AvMAX (av) + 1);
…		…
500		540
501	if (expect_true (CvDEPTH (cv)))	541	if (expect_true (CvDEPTH (cv)))
502	{	542	{
503	EXTEND (SP, 3);	543	EXTEND (SP, 3);
504	PUSHs ((SV *)CvPADLIST (cv));	544	PUSHs ((SV *)CvPADLIST (cv));
505	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	545	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
506	PUSHs ((SV *)cv);	546	PUSHs ((SV *)cv);
507		547
508	CvDEPTH (cv) = 0;	548	CvDEPTH (cv) = 0;
509	get_padlist (aTHX_ cv);	549	get_padlist (aTHX_ cv);
510	}	550	}
…		…
521		561
522	PUTBACK;	562	PUTBACK;
523	}	563	}
524		564
525	/* allocate some space on the context stack for our purposes */	565	/* allocate some space on the context stack for our purposes */
		566	/* we manually unroll here, as usually 2 slots is enough */
		567	if (SLOT_COUNT >= 1) CXINC;
		568	if (SLOT_COUNT >= 2) CXINC;
		569	if (SLOT_COUNT >= 3) CXINC;
526	{	570	{
527	/* we manually unroll here, as usually 2 slots is enough */
528	int i;	571	int i;
529	if (SLOT_COUNT >= 1) CXINC;
530	if (SLOT_COUNT >= 2) CXINC;
531	if (SLOT_COUNT >= 3) CXINC;
532	for (i = 3; i < SLOT_COUNT; ++i)	572	for (i = 3; i < SLOT_COUNT; ++i)
533	CXINC;	573	CXINC;
534
535	cxstack_ix -= SLOT_COUNT; /* undo allocation */
536	}	574	}
		575	cxstack_ix -= SLOT_COUNT; /* undo allocation */
537		576
538	c->mainstack = PL_mainstack;	577	c->mainstack = PL_mainstack;
539		578
540	{	579	{
541	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);	580	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
…		…
591		630
592	New(54,PL_savestack,24,ANY);	631	New(54,PL_savestack,24,ANY);
593	PL_savestack_ix = 0;	632	PL_savestack_ix = 0;
594	PL_savestack_max = 24;	633	PL_savestack_max = 24;
595		634
596	#if !PERL_VERSION_ATLEAST (5,9,0)	635	#if !PERL_VERSION_ATLEAST (5,10,0)
597	New(54,PL_retstack,4,OP*);	636	New(54,PL_retstack,4,OP*);
598	PL_retstack_ix = 0;	637	PL_retstack_ix = 0;
599	PL_retstack_max = 4;	638	PL_retstack_max = 4;
600	#endif	639	#endif
601	}	640	}
…		…
603		642
604	/*	643	/*
605	* destroy the stacks, the callchain etc...	644	* destroy the stacks, the callchain etc...
606	*/	645	*/
607	static void	646	static void
608	coro_destroy_stacks (pTHX)	647	coro_destruct_stacks (pTHX)
609	{	648	{
610	while (PL_curstackinfo->si_next)	649	while (PL_curstackinfo->si_next)
611	PL_curstackinfo = PL_curstackinfo->si_next;	650	PL_curstackinfo = PL_curstackinfo->si_next;
612		651
613	while (PL_curstackinfo)	652	while (PL_curstackinfo)
…		…
624		663
625	Safefree (PL_tmps_stack);	664	Safefree (PL_tmps_stack);
626	Safefree (PL_markstack);	665	Safefree (PL_markstack);
627	Safefree (PL_scopestack);	666	Safefree (PL_scopestack);
628	Safefree (PL_savestack);	667	Safefree (PL_savestack);
629	#if !PERL_VERSION_ATLEAST (5,9,0)	668	#if !PERL_VERSION_ATLEAST (5,10,0)
630	Safefree (PL_retstack);	669	Safefree (PL_retstack);
631	#endif	670	#endif
632	}	671	}
633		672
634	static size_t	673	static size_t
…		…
650	#undef VAR	689	#undef VAR
651	}	690	}
652	else	691	else
653	slot = coro->slot;	692	slot = coro->slot;
654		693
		694	if (slot)
		695	{
655	rss += sizeof (slot->curstackinfo);	696	rss += sizeof (slot->curstackinfo);
656	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	697	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
657	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	698	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
658	rss += slot->tmps_max * sizeof (SV *);	699	rss += slot->tmps_max * sizeof (SV *);
659	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	700	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
660	rss += slot->scopestack_max * sizeof (I32);	701	rss += slot->scopestack_max * sizeof (I32);
661	rss += slot->savestack_max * sizeof (ANY);	702	rss += slot->savestack_max * sizeof (ANY);
662		703
663	#if !PERL_VERSION_ATLEAST (5,9,0)	704	#if !PERL_VERSION_ATLEAST (5,10,0)
664	rss += slot->retstack_max * sizeof (OP *);	705	rss += slot->retstack_max * sizeof (OP *);
665	#endif	706	#endif
		707	}
666	}	708	}
667		709
668	return rss;	710	return rss;
669	}	711	}
670		712
671	/ coroutine stack handling **********************************************/	713	/ coroutine stack handling **********************************************/
		714
		715	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		716	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		717	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		718
		719	/* apparently < 5.8.8 */
		720	#ifndef MgPV_nolen_const
		721	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		722	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		723	(const char*)(mg)->mg_ptr)
		724	#endif
		725
		726	/*
		727	* This overrides the default magic get method of %SIG elements.
		728	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		729	* and instead of tryign to save and restore the hash elements, we just provide
		730	* readback here.
		731	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		732	* not expecting this to actually change the hook. This is a potential problem
		733	* when a schedule happens then, but we ignore this.
		734	*/
		735	static int
		736	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		737	{
		738	const char *s = MgPV_nolen_const (mg);
		739
		740	if (*s == '_')
		741	{
		742	SV **svp = 0;
		743
		744	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		745	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		746
		747	if (svp)
		748	{
		749	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		750	return 0;
		751	}
		752	}
		753
		754	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		755	}
		756
		757	static int
		758	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		759	{
		760	const char *s = MgPV_nolen_const (mg);
		761
		762	if (*s == '_')
		763	{
		764	SV **svp = 0;
		765
		766	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		767	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		768
		769	if (svp)
		770	{
		771	SV old = svp;
		772	*svp = 0;
		773	SvREFCNT_dec (old);
		774	return 0;
		775	}
		776	}
		777
		778	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		779	}
		780
		781	static int
		782	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		783	{
		784	const char *s = MgPV_nolen_const (mg);
		785
		786	if (*s == '_')
		787	{
		788	SV **svp = 0;
		789
		790	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		791	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		792
		793	if (svp)
		794	{
		795	SV old = svp;
		796	*svp = newSVsv (sv);
		797	SvREFCNT_dec (old);
		798	return 0;
		799	}
		800	}
		801
		802	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		803	}
672		804
673	static void	805	static void
674	coro_setup (pTHX_ struct coro *coro)	806	coro_setup (pTHX_ struct coro *coro)
675	{	807	{
676	/*	808	/*
…		…
685	PL_curpm = 0;	817	PL_curpm = 0;
686	PL_curpad = 0;	818	PL_curpad = 0;
687	PL_localizing = 0;	819	PL_localizing = 0;
688	PL_dirty = 0;	820	PL_dirty = 0;
689	PL_restartop = 0;	821	PL_restartop = 0;
690	SvREFCNT_inc (PL_diehook ); hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);	822	#if PERL_VERSION_ATLEAST (5,10,0)
691	SvREFCNT_inc (PL_warnhook); hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);	823	PL_parser = 0;
		824	#endif
		825
		826	/* recreate the die/warn hooks */
		827	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		828	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
692		829
693	GvSV (PL_defgv) = newSV (0);	830	GvSV (PL_defgv) = newSV (0);
694	GvAV (PL_defgv) = coro->args; coro->args = 0;	831	GvAV (PL_defgv) = coro->args; coro->args = 0;
695	GvSV (PL_errgv) = newSV (0);	832	GvSV (PL_errgv) = newSV (0);
696	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	833	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
697	PL_rs = newSVsv (GvSV (irsgv));	834	PL_rs = newSVsv (GvSV (irsgv));
698	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);	835	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
699		836
700	{	837	{
701	dSP;	838	dSP;
702	LOGOP myop;	839	LOGOP myop;
703		840
…		…
711	PL_op = (OP *)&myop;	848	PL_op = (OP *)&myop;
712	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	849	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
713	SPAGAIN;	850	SPAGAIN;
714	}	851	}
715		852
716	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	853	/* this newly created coroutine might be run on an existing cctx which most
		854	* likely was suspended in set_stacklevel, called from entersub.
		855	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		856	* so we ENTER here for symmetry
		857	*/
		858	ENTER;
717	}	859	}
718		860
719	static void	861	static void
720	coro_destroy (pTHX_ struct coro *coro)	862	coro_destruct (pTHX_ struct coro *coro)
721	{	863	{
722	if (!IN_DESTRUCT)	864	if (!IN_DESTRUCT)
723	{	865	{
724	/* restore all saved variables and stuff */	866	/* restore all saved variables and stuff */
725	LEAVE_SCOPE (0);	867	LEAVE_SCOPE (0);
…		…
747	SvREFCNT_dec (PL_warnhook);	889	SvREFCNT_dec (PL_warnhook);
748		890
749	SvREFCNT_dec (coro->saved_deffh);	891	SvREFCNT_dec (coro->saved_deffh);
750	SvREFCNT_dec (coro->throw);	892	SvREFCNT_dec (coro->throw);
751		893
752	coro_destroy_stacks (aTHX);	894	coro_destruct_stacks (aTHX);
753	}	895	}
754		896
755	static void	897	static void
756	free_coro_mortal (pTHX)	898	free_coro_mortal (pTHX)
757	{	899	{
…		…
794	: cx->blk_gimme == G_SCALAR ? bot + 1	936	: cx->blk_gimme == G_SCALAR ? bot + 1
795	: bot;	937	: bot;
796		938
797	av_extend (av, top - bot);	939	av_extend (av, top - bot);
798	while (bot < top)	940	while (bot < top)
799	av_push (av, SvREFCNT_inc (*bot++));	941	av_push (av, SvREFCNT_inc_NN (*bot++));
800		942
801	PL_runops = RUNOPS_DEFAULT;	943	PL_runops = RUNOPS_DEFAULT;
802	ENTER;	944	ENTER;
803	SAVETMPS;	945	SAVETMPS;
804	EXTEND (SP, 3);	946	EXTEND (SP, 3);
805	PUSHMARK (SP);	947	PUSHMARK (SP);
806	PUSHs (&PL_sv_no);	948	PUSHs (&PL_sv_no);
807	PUSHs (fullname);	949	PUSHs (fullname);
808	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	950	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
809	PUTBACK;	951	PUTBACK;
810	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	952	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
811	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	953	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
812	SPAGAIN;	954	SPAGAIN;
813	FREETMPS;	955	FREETMPS;
814	LEAVE;	956	LEAVE;
815	PL_runops = runops_trace;	957	PL_runops = runops_trace;
…		…
842	SAVETMPS;	984	SAVETMPS;
843	EXTEND (SP, 3);	985	EXTEND (SP, 3);
844	PUSHMARK (SP);	986	PUSHMARK (SP);
845	PUSHs (&PL_sv_yes);	987	PUSHs (&PL_sv_yes);
846	PUSHs (fullname);	988	PUSHs (fullname);
847	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	989	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
848	PUTBACK;	990	PUTBACK;
849	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	991	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
850	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	992	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
851	SPAGAIN;	993	SPAGAIN;
852	FREETMPS;	994	FREETMPS;
853	LEAVE;	995	LEAVE;
854	PL_runops = runops_trace;	996	PL_runops = runops_trace;
…		…
868	PL_runops = RUNOPS_DEFAULT;	1010	PL_runops = RUNOPS_DEFAULT;
869	PUSHMARK (SP);	1011	PUSHMARK (SP);
870	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));	1012	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
871	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));	1013	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
872	PUTBACK;	1014	PUTBACK;
873	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0);	1015	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
874	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1016	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
875	SPAGAIN;	1017	SPAGAIN;
876	FREETMPS;	1018	FREETMPS;
877	LEAVE;	1019	LEAVE;
878	PL_runops = runops_trace;	1020	PL_runops = runops_trace;
…		…
888		1030
889	/* inject a fake call to Coro::State::_cctx_init into the execution */	1031	/* inject a fake call to Coro::State::_cctx_init into the execution */
890	/* _cctx_init should be careful, as it could be called at almost any time */	1032	/* _cctx_init should be careful, as it could be called at almost any time */
891	/* during execution of a perl program */	1033	/* during execution of a perl program */
892	static void NOINLINE	1034	static void NOINLINE
893	prepare_cctx (pTHX_ coro_cctx *cctx)	1035	cctx_prepare (pTHX_ coro_cctx *cctx)
894	{	1036	{
895	dSP;	1037	dSP;
896	LOGOP myop;	1038	LOGOP myop;
897		1039
898	PL_top_env = &PL_start_env;	1040	PL_top_env = &PL_start_env;
…		…
916		1058
917	/*	1059	/*
918	* this is a _very_ stripped down perl interpreter ;)	1060	* this is a _very_ stripped down perl interpreter ;)
919	*/	1061	*/
920	static void	1062	static void
921	coro_run (void *arg)	1063	cctx_run (void *arg)
922	{	1064	{
		1065	#ifdef USE_ITHREADS
		1066	# if CORO_PTHREAD
		1067	PERL_SET_CONTEXT (coro_thx);
		1068	# endif
		1069	#endif
		1070	{
923	dTHX;	1071	dTHX;
924		1072
925	/* coro_run is the alternative tail of transfer(), so unlock here. */	1073	/* cctx_run is the alternative tail of transfer(), so unlock here. */
926	UNLOCK;	1074	UNLOCK;
927		1075
928	/* we now skip the entersub that lead to transfer() */	1076	/* we now skip the entersub that lead to transfer() */
929	PL_op = PL_op->op_next;	1077	PL_op = PL_op->op_next;
930		1078
931	/* inject a fake subroutine call to cctx_init */	1079	/* inject a fake subroutine call to cctx_init */
932	prepare_cctx (aTHX_ (coro_cctx *)arg);	1080	cctx_prepare (aTHX_ (coro_cctx *)arg);
933		1081
934	/* somebody or something will hit me for both perl_run and PL_restartop */	1082	/* somebody or something will hit me for both perl_run and PL_restartop */
935	PL_restartop = PL_op;	1083	PL_restartop = PL_op;
936	perl_run (PL_curinterp);	1084	perl_run (PL_curinterp);
937		1085
938	/*	1086	/*
939	* If perl-run returns we assume exit() was being called or the coro	1087	* If perl-run returns we assume exit() was being called or the coro
940	* fell off the end, which seems to be the only valid (non-bug)	1088	* fell off the end, which seems to be the only valid (non-bug)
941	* reason for perl_run to return. We try to exit by jumping to the	1089	* reason for perl_run to return. We try to exit by jumping to the
942	* bootstrap-time "top" top_env, as we cannot restore the "main"	1090	* bootstrap-time "top" top_env, as we cannot restore the "main"
943	* coroutine as Coro has no such concept	1091	* coroutine as Coro has no such concept
944	*/	1092	*/
945	PL_top_env = main_top_env;	1093	PL_top_env = main_top_env;
946	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1094	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
		1095	}
947	}	1096	}
948		1097
949	static coro_cctx *	1098	static coro_cctx *
950	cctx_new ()	1099	cctx_new ()
951	{	1100	{
952	coro_cctx *cctx;	1101	coro_cctx *cctx;
		1102
		1103	++cctx_count;
		1104	New (0, cctx, 1, coro_cctx);
		1105
		1106	cctx->gen = cctx_gen;
		1107	cctx->flags = 0;
		1108
		1109	return cctx;
		1110	}
		1111
		1112	/* create a new cctx only suitable as source */
		1113	static coro_cctx *
		1114	cctx_new_empty ()
		1115	{
		1116	coro_cctx *cctx = cctx_new ();
		1117
		1118	cctx->sptr = 0;
		1119	cctx->idle_sp = 0; /* should never be a valid address */
		1120	coro_create (&cctx->cctx, 0, 0, 0, 0);
		1121
		1122	return cctx;
		1123	}
		1124
		1125	/* create a new cctx suitable as destination/running a perl interpreter */
		1126	static coro_cctx *
		1127	cctx_new_run ()
		1128	{
		1129	coro_cctx *cctx = cctx_new ();
953	void *stack_start;	1130	void *stack_start;
954	size_t stack_size;	1131	size_t stack_size;
955		1132
956	++cctx_count;
957
958	Newz (0, cctx, 1, coro_cctx);
959
960	#if HAVE_MMAP	1133	#if HAVE_MMAP
961
962	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1134	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
963	/* mmap supposedly does allocate-on-write for us */	1135	/* 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);	1136	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
965		1137
966	if (cctx->sptr != (void *)-1)	1138	if (cctx->sptr != (void *)-1)
967	{	1139	{
…		…
973	cctx->flags \|= CC_MAPPED;	1145	cctx->flags \|= CC_MAPPED;
974	}	1146	}
975	else	1147	else
976	#endif	1148	#endif
977	{	1149	{
978	cctx->ssize = coro_stacksize * (long)sizeof (long);	1150	cctx->ssize = cctx_stacksize * (long)sizeof (long);
979	New (0, cctx->sptr, coro_stacksize, long);	1151	New (0, cctx->sptr, cctx_stacksize, long);
980		1152
981	if (!cctx->sptr)	1153	if (!cctx->sptr)
982	{	1154	{
983	perror ("FATAL: unable to allocate stack for coroutine");	1155	perror ("FATAL: unable to allocate stack for coroutine");
984	_exit (EXIT_FAILURE);	1156	_exit (EXIT_FAILURE);
…		…
987	stack_start = cctx->sptr;	1159	stack_start = cctx->sptr;
988	stack_size = cctx->ssize;	1160	stack_size = cctx->ssize;
989	}	1161	}
990		1162
991	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1163	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
992	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1164	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
993		1165
994	return cctx;	1166	return cctx;
995	}	1167	}
996		1168
997	static void	1169	static void
…		…
999	{	1171	{
1000	if (!cctx)	1172	if (!cctx)
1001	return;	1173	return;
1002		1174
1003	--cctx_count;	1175	--cctx_count;
		1176	coro_destroy (&cctx->cctx);
1004		1177
		1178	/* coro_transfer creates new, empty cctx's */
		1179	if (cctx->sptr)
		1180	{
1005	#if CORO_USE_VALGRIND	1181	#if CORO_USE_VALGRIND
1006	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1182	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1007	#endif	1183	#endif
1008		1184
1009	#if HAVE_MMAP	1185	#if HAVE_MMAP
1010	if (cctx->flags & CC_MAPPED)	1186	if (cctx->flags & CC_MAPPED)
1011	munmap (cctx->sptr, cctx->ssize);	1187	munmap (cctx->sptr, cctx->ssize);
1012	else	1188	else
1013	#endif	1189	#endif
1014	Safefree (cctx->sptr);	1190	Safefree (cctx->sptr);
		1191	}
1015		1192
1016	Safefree (cctx);	1193	Safefree (cctx);
1017	}	1194	}
1018		1195
1019	/* wether this cctx should be destructed */	1196	/* wether this cctx should be destructed */
1020	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))	1197	#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen \|\| ((cctx)->flags & CC_NOREUSE))
1021		1198
1022	static coro_cctx *	1199	static coro_cctx *
1023	cctx_get (pTHX)	1200	cctx_get (pTHX)
1024	{	1201	{
1025	while (expect_true (cctx_first))	1202	while (expect_true (cctx_first))
…		…
1032	return cctx;	1209	return cctx;
1033		1210
1034	cctx_destroy (cctx);	1211	cctx_destroy (cctx);
1035	}	1212	}
1036		1213
1037	return cctx_new ();	1214	return cctx_new_run ();
1038	}	1215	}
1039		1216
1040	static void	1217	static void
1041	cctx_put (coro_cctx *cctx)	1218	cctx_put (coro_cctx *cctx)
1042	{	1219	{
		1220	assert (("cctx_put called on non-initialised cctx", cctx->sptr));
		1221
1043	/* free another cctx if overlimit */	1222	/* free another cctx if overlimit */
1044	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))	1223	if (expect_false (cctx_idle >= cctx_max_idle))
1045	{	1224	{
1046	coro_cctx *first = cctx_first;	1225	coro_cctx *first = cctx_first;
1047	cctx_first = first->next;	1226	cctx_first = first->next;
1048	--cctx_idle;	1227	--cctx_idle;
1049		1228
…		…
1069	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1248	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1070		1249
1071	if (expect_false (next->flags & CF_DESTROYED))	1250	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");	1251	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1073		1252
1074	if (
1075	#if PERL_VERSION_ATLEAST (5,9,0)	1253	#if !PERL_VERSION_ATLEAST (5,10,0)
1076	expect_false (PL_parser)
1077	#else
1078	expect_false (PL_lex_state != LEX_NOTPARSING)	1254	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1079	#endif
1080	)
1081	croak ("Coro::State::transfer called while parsing, but this is not supported");	1255	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1256	#endif
1082	}	1257	}
1083	}	1258	}
1084		1259
1085	/* always use the TRANSFER macro */	1260	/* always use the TRANSFER macro */
1086	static void NOINLINE	1261	static void NOINLINE
1087	transfer (pTHX_ struct coro prev, struct coro next)	1262	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1088	{	1263	{
1089	dSTACKLEVEL;	1264	dSTACKLEVEL;
1090		1265
1091	/* sometimes transfer is only called to set idle_sp */	1266	/* sometimes transfer is only called to set idle_sp */
1092	if (expect_false (!next))	1267	if (expect_false (!next))
…		…
1094	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1269	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1095	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1270	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
1096	}	1271	}
1097	else if (expect_true (prev != next))	1272	else if (expect_true (prev != next))
1098	{	1273	{
		1274	static volatile int has_throw;
1099	coro_cctx *prev__cctx;	1275	coro_cctx *prev__cctx;
1100		1276
1101	if (expect_false (prev->flags & CF_NEW))	1277	if (expect_false (prev->flags & CF_NEW))
1102	{	1278	{
1103	/* create a new empty context */	1279	/* create a new empty/source context */
1104	Newz (0, prev->cctx, 1, coro_cctx);	1280	prev->cctx = cctx_new_empty ();
1105	prev->flags &= ~CF_NEW;	1281	prev->flags &= ~CF_NEW;
1106	prev->flags \|= CF_RUNNING;	1282	prev->flags \|= CF_RUNNING;
1107	}	1283	}
1108		1284
1109	prev->flags &= ~CF_RUNNING;	1285	prev->flags &= ~CF_RUNNING;
1110	next->flags \|= CF_RUNNING;	1286	next->flags \|= CF_RUNNING;
1111		1287
1112	LOCK;	1288	LOCK;
		1289
		1290	/* first get rid of the old state */
		1291	save_perl (aTHX_ prev);
1113		1292
1114	if (expect_false (next->flags & CF_NEW))	1293	if (expect_false (next->flags & CF_NEW))
1115	{	1294	{
1116	/* need to start coroutine */	1295	/* need to start coroutine */
1117	next->flags &= ~CF_NEW;	1296	next->flags &= ~CF_NEW;
1118	/* first get rid of the old state */
1119	save_perl (aTHX_ prev);
1120	/* setup coroutine call */	1297	/* setup coroutine call */
1121	coro_setup (aTHX_ next);	1298	coro_setup (aTHX_ next);
1122	}	1299	}
1123	else	1300	else
1124	{
1125	/* coroutine already started */
1126	save_perl (aTHX_ prev);
1127	load_perl (aTHX_ next);	1301	load_perl (aTHX_ next);
1128	}
1129		1302
1130	prev__cctx = prev->cctx;	1303	prev__cctx = prev->cctx;
1131		1304
1132	/* possibly "free" the cctx */	1305	/* possibly "free" the cctx */
1133	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1306	if (expect_true (
		1307	prev__cctx->idle_sp == STACKLEVEL
		1308	&& !(prev__cctx->flags & CC_TRACE)
		1309	&& !force_cctx
		1310	))
1134	{	1311	{
1135	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1312	/* 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));	1313	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1137		1314
1138	prev->cctx = 0;	1315	prev->cctx = 0;
1139		1316
1140	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1317	/* 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 */	1318	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1142	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1319	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1320	if (!next->cctx)
1143	next->cctx = cctx_get (aTHX);	1321	next->cctx = cctx_get (aTHX);
1144		1322
1145	cctx_put (prev__cctx);	1323	cctx_put (prev__cctx);
1146	}	1324	}
1147		1325
1148	++next->usecount;	1326	++next->usecount;
1149		1327
1150	if (expect_true (!next->cctx))	1328	if (expect_true (!next->cctx))
1151	next->cctx = cctx_get (aTHX);	1329	next->cctx = cctx_get (aTHX);
		1330
		1331	has_throw = !!next->throw;
1152		1332
1153	if (expect_false (prev__cctx != next->cctx))	1333	if (expect_false (prev__cctx != next->cctx))
1154	{	1334	{
1155	prev__cctx->top_env = PL_top_env;	1335	prev__cctx->top_env = PL_top_env;
1156	PL_top_env = next->cctx->top_env;	1336	PL_top_env = next->cctx->top_env;
…		…
1158	}	1338	}
1159		1339
1160	free_coro_mortal (aTHX);	1340	free_coro_mortal (aTHX);
1161	UNLOCK;	1341	UNLOCK;
1162		1342
1163	if (expect_false (prev->throw \|\| next->throw))	1343	if (expect_false (has_throw))
1164	{	1344	{
1165	struct coro *coro = SvSTATE (coro_current);	1345	struct coro *coro = SvSTATE (coro_current);
1166		1346
1167	if (coro->throw)	1347	if (coro->throw)
1168	{	1348	{
…		…
1178	struct transfer_args	1358	struct transfer_args
1179	{	1359	{
1180	struct coro prev, next;	1360	struct coro prev, next;
1181	};	1361	};
1182		1362
1183	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1363	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1184	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1364	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1185		1365
1186	/ high level stuff ******************************************************/	1366	/ high level stuff ******************************************************/
1187		1367
1188	static int	1368	static int
…		…
1212	croak ("FATAL: tried to destroy currently running coroutine");	1392	croak ("FATAL: tried to destroy currently running coroutine");
1213		1393
1214	save_perl (aTHX_ &temp);	1394	save_perl (aTHX_ &temp);
1215	load_perl (aTHX_ coro);	1395	load_perl (aTHX_ coro);
1216		1396
1217	coro_destroy (aTHX_ coro);	1397	coro_destruct (aTHX_ coro);
1218		1398
1219	load_perl (aTHX_ &temp);	1399	load_perl (aTHX_ &temp);
1220		1400
1221	coro->slot = 0;	1401	coro->slot = 0;
1222	}	1402	}
…		…
1282	{	1462	{
1283	dTHX;	1463	dTHX;
1284	struct transfer_args ta;	1464	struct transfer_args ta;
1285		1465
1286	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1466	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1287	TRANSFER (ta);	1467	TRANSFER (ta, 1);
1288	}	1468	}
1289		1469
1290	/ Coro ******************************************************************/	1470	/ Coro ******************************************************************/
1291		1471
1292	static void	1472	static void
…		…
1294	{	1474	{
1295	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1475	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1296	}	1476	}
1297		1477
1298	static SV *	1478	static SV *
1299	coro_deq (pTHX_ int min_prio)	1479	coro_deq (pTHX)
1300	{	1480	{
1301	int prio = PRIO_MAX - PRIO_MIN;	1481	int prio;
1302		1482
1303	min_prio -= PRIO_MIN;
1304	if (min_prio < 0)
1305	min_prio = 0;
1306
1307	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1483	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1308	if (AvFILLp (coro_ready [prio]) >= 0)	1484	if (AvFILLp (coro_ready [prio]) >= 0)
1309	return av_shift (coro_ready [prio]);	1485	return av_shift (coro_ready [prio]);
1310		1486
1311	return 0;	1487	return 0;
1312	}	1488	}
…		…
1314	static int	1490	static int
1315	api_ready (SV *coro_sv)	1491	api_ready (SV *coro_sv)
1316	{	1492	{
1317	dTHX;	1493	dTHX;
1318	struct coro *coro;	1494	struct coro *coro;
		1495	SV *sv_hook;
		1496	void (*xs_hook)(void);
1319		1497
1320	if (SvROK (coro_sv))	1498	if (SvROK (coro_sv))
1321	coro_sv = SvRV (coro_sv);	1499	coro_sv = SvRV (coro_sv);
1322		1500
1323	coro = SvSTATE (coro_sv);	1501	coro = SvSTATE (coro_sv);
…		…
1326	return 0;	1504	return 0;
1327		1505
1328	coro->flags \|= CF_READY;	1506	coro->flags \|= CF_READY;
1329		1507
1330	LOCK;	1508	LOCK;
		1509
		1510	sv_hook = coro_nready ? 0 : coro_readyhook;
		1511	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1512
1331	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1513	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1332	++coro_nready;	1514	++coro_nready;
		1515
1333	UNLOCK;	1516	UNLOCK;
		1517
		1518	if (sv_hook)
		1519	{
		1520	dSP;
		1521
		1522	ENTER;
		1523	SAVETMPS;
		1524
		1525	PUSHMARK (SP);
		1526	PUTBACK;
		1527	call_sv (sv_hook, G_DISCARD);
		1528	SPAGAIN;
		1529
		1530	FREETMPS;
		1531	LEAVE;
		1532	}
		1533
		1534	if (xs_hook)
		1535	xs_hook ();
1334		1536
1335	return 1;	1537	return 1;
1336	}	1538	}
1337		1539
1338	static int	1540	static int
…		…
1348	SV prev_sv, next_sv;	1550	SV prev_sv, next_sv;
1349		1551
1350	for (;;)	1552	for (;;)
1351	{	1553	{
1352	LOCK;	1554	LOCK;
1353	next_sv = coro_deq (aTHX_ PRIO_MIN);	1555	next_sv = coro_deq (aTHX);
1354		1556
1355	/* nothing to schedule: call the idle handler */	1557	/* nothing to schedule: call the idle handler */
1356	if (expect_false (!next_sv))	1558	if (expect_false (!next_sv))
1357	{	1559	{
1358	dSP;	1560	dSP;
…		…
1362	SAVETMPS;	1564	SAVETMPS;
1363		1565
1364	PUSHMARK (SP);	1566	PUSHMARK (SP);
1365	PUTBACK;	1567	PUTBACK;
1366	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1568	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1569	SPAGAIN;
1367		1570
1368	FREETMPS;	1571	FREETMPS;
1369	LEAVE;	1572	LEAVE;
1370	continue;	1573	continue;
1371	}	1574	}
…		…
1426	{	1629	{
1427	dTHX;	1630	dTHX;
1428	struct transfer_args ta;	1631	struct transfer_args ta;
1429		1632
1430	prepare_schedule (aTHX_ &ta);	1633	prepare_schedule (aTHX_ &ta);
1431	TRANSFER (ta);	1634	TRANSFER (ta, 1);
1432	}	1635	}
1433		1636
1434	static int	1637	static int
1435	api_cede (void)	1638	api_cede (void)
1436	{	1639	{
…		…
1439		1642
1440	prepare_cede (aTHX_ &ta);	1643	prepare_cede (aTHX_ &ta);
1441		1644
1442	if (expect_true (ta.prev != ta.next))	1645	if (expect_true (ta.prev != ta.next))
1443	{	1646	{
1444	TRANSFER (ta);	1647	TRANSFER (ta, 1);
1445	return 1;	1648	return 1;
1446	}	1649	}
1447	else	1650	else
1448	return 0;	1651	return 0;
1449	}	1652	}
…		…
1454	dTHX;	1657	dTHX;
1455	struct transfer_args ta;	1658	struct transfer_args ta;
1456		1659
1457	if (prepare_cede_notself (aTHX_ &ta))	1660	if (prepare_cede_notself (aTHX_ &ta))
1458	{	1661	{
1459	TRANSFER (ta);	1662	TRANSFER (ta, 1);
1460	return 1;	1663	return 1;
1461	}	1664	}
1462	else	1665	else
1463	return 0;	1666	return 0;
1464	}	1667	}
…		…
1470	struct coro *coro = SvSTATE (coro_sv);	1673	struct coro *coro = SvSTATE (coro_sv);
1471		1674
1472	if (flags & CC_TRACE)	1675	if (flags & CC_TRACE)
1473	{	1676	{
1474	if (!coro->cctx)	1677	if (!coro->cctx)
1475	coro->cctx = cctx_new ();	1678	coro->cctx = cctx_new_run ();
1476	else if (!(coro->cctx->flags & CC_TRACE))	1679	else if (!(coro->cctx->flags & CC_TRACE))
1477	croak ("cannot enable tracing on coroutine with custom stack");	1680	croak ("cannot enable tracing on coroutine with custom stack");
1478		1681
1479	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));	1682	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
1480	}	1683	}
…		…
1487	else	1690	else
1488	coro->slot->runops = RUNOPS_DEFAULT;	1691	coro->slot->runops = RUNOPS_DEFAULT;
1489	}	1692	}
1490	}	1693	}
1491		1694
		1695	#if 0
		1696	static int
		1697	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1698	{
		1699	AV *padlist;
		1700	AV av = (AV )mg->mg_obj;
		1701
		1702	abort ();
		1703
		1704	return 0;
		1705	}
		1706
		1707	static MGVTBL coro_gensub_vtbl = {
		1708	0, 0, 0, 0,
		1709	coro_gensub_free
		1710	};
		1711	#endif
		1712
		1713	/*****************************************************************************/
		1714	/* PerlIO::cede */
		1715
		1716	typedef struct
		1717	{
		1718	PerlIOBuf base;
		1719	NV next, every;
		1720	} PerlIOCede;
		1721
		1722	static IV
		1723	PerlIOCede_pushed (pTHX_ PerlIO f, const char mode, SV arg, PerlIO_funcs tab)
		1724	{
		1725	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1726
		1727	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1728	self->next = nvtime () + self->every;
		1729
		1730	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1731	}
		1732
		1733	static SV *
		1734	PerlIOCede_getarg (pTHX_ PerlIO f, CLONE_PARAMS param, int flags)
		1735	{
		1736	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1737
		1738	return newSVnv (self->every);
		1739	}
		1740
		1741	static IV
		1742	PerlIOCede_flush (pTHX_ PerlIO *f)
		1743	{
		1744	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1745	double now = nvtime ();
		1746
		1747	if (now >= self->next)
		1748	{
		1749	api_cede ();
		1750	self->next = now + self->every;
		1751	}
		1752
		1753	return PerlIOBuf_flush (aTHX_ f);
		1754	}
		1755
		1756	static PerlIO_funcs PerlIO_cede =
		1757	{
		1758	sizeof(PerlIO_funcs),
		1759	"cede",
		1760	sizeof(PerlIOCede),
		1761	PERLIO_K_DESTRUCT \| PERLIO_K_RAW,
		1762	PerlIOCede_pushed,
		1763	PerlIOBuf_popped,
		1764	PerlIOBuf_open,
		1765	PerlIOBase_binmode,
		1766	PerlIOCede_getarg,
		1767	PerlIOBase_fileno,
		1768	PerlIOBuf_dup,
		1769	PerlIOBuf_read,
		1770	PerlIOBuf_unread,
		1771	PerlIOBuf_write,
		1772	PerlIOBuf_seek,
		1773	PerlIOBuf_tell,
		1774	PerlIOBuf_close,
		1775	PerlIOCede_flush,
		1776	PerlIOBuf_fill,
		1777	PerlIOBase_eof,
		1778	PerlIOBase_error,
		1779	PerlIOBase_clearerr,
		1780	PerlIOBase_setlinebuf,
		1781	PerlIOBuf_get_base,
		1782	PerlIOBuf_bufsiz,
		1783	PerlIOBuf_get_ptr,
		1784	PerlIOBuf_get_cnt,
		1785	PerlIOBuf_set_ptrcnt,
		1786	};
		1787
		1788
1492	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1789	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1493		1790
1494	PROTOTYPES: DISABLE	1791	PROTOTYPES: DISABLE
1495		1792
1496	BOOT:	1793	BOOT:
1497	{	1794	{
1498	#ifdef USE_ITHREADS	1795	#ifdef USE_ITHREADS
1499	MUTEX_INIT (&coro_mutex);	1796	MUTEX_INIT (&coro_lock);
		1797	# if CORO_PTHREAD
		1798	coro_thx = PERL_GET_CONTEXT;
		1799	# endif
1500	#endif	1800	#endif
1501	BOOT_PAGESIZE;	1801	BOOT_PAGESIZE;
1502		1802
1503	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1803	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1504	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1804	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1505		1805
		1806	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1807	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1808	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1809
1506	hv_sig = coro_get_hv ("SIG", TRUE);	1810	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1507	sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);	1811	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1508	sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);	1812	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1509
1510	if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1511	if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1512		1813
1513	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1814	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1514		1815
1515	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1816	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1516	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1817	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1521	main_top_env = PL_top_env;	1822	main_top_env = PL_top_env;
1522		1823
1523	while (main_top_env->je_prev)	1824	while (main_top_env->je_prev)
1524	main_top_env = main_top_env->je_prev;	1825	main_top_env = main_top_env->je_prev;
1525		1826
1526	coroapi.ver = CORO_API_VERSION;	1827	coroapi.ver = CORO_API_VERSION;
		1828	coroapi.rev = CORO_API_REVISION;
1527	coroapi.transfer = api_transfer;	1829	coroapi.transfer = api_transfer;
		1830
		1831	{
		1832	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		1833
		1834	if (!svp) croak ("Time::HiRes is required");
		1835	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
		1836
		1837	nvtime = INT2PTR (double ()(), SvIV (svp));
		1838	}
1528		1839
1529	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1840	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1530	}	1841	}
1531		1842
1532	SV *	1843	SV *
1533	new (char *klass, ...)	1844	new (char *klass, ...)
1534	CODE:	1845	CODE:
1535	{	1846	{
1536	struct coro *coro;	1847	struct coro *coro;
		1848	MAGIC *mg;
1537	HV *hv;	1849	HV *hv;
1538	int i;	1850	int i;
1539		1851
1540	Newz (0, coro, 1, struct coro);	1852	Newz (0, coro, 1, struct coro);
1541	coro->args = newAV ();	1853	coro->args = newAV ();
…		…
1544	if (coro_first) coro_first->prev = coro;	1856	if (coro_first) coro_first->prev = coro;
1545	coro->next = coro_first;	1857	coro->next = coro_first;
1546	coro_first = coro;	1858	coro_first = coro;
1547		1859
1548	coro->hv = hv = newHV ();	1860	coro->hv = hv = newHV ();
1549	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1861	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1862	mg->mg_flags \|= MGf_DUP;
1550	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1863	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1551		1864
1552	av_extend (coro->args, items - 1);	1865	av_extend (coro->args, items - 1);
1553	for (i = 1; i < items; i++)	1866	for (i = 1; i < items; i++)
1554	av_push (coro->args, newSVsv (ST (i)));	1867	av_push (coro->args, newSVsv (ST (i)));
…		…
1568	Coro::cede_notself = 4	1881	Coro::cede_notself = 4
1569	CODE:	1882	CODE:
1570	{	1883	{
1571	struct transfer_args ta;	1884	struct transfer_args ta;
1572		1885
		1886	PUTBACK;
1573	switch (ix)	1887	switch (ix)
1574	{	1888	{
1575	case 0:	1889	case 0:
1576	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1890	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1577	ta.next = 0;	1891	ta.next = 0;
1578	break;	1892	break;
1579		1893
1580	case 1:	1894	case 1:
1581	if (items != 2)	1895	if (items != 2)
1582	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1896	croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items);
1583		1897
1584	prepare_transfer (aTHX_ &ta, ST (0), ST (1));	1898	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1585	break;	1899	break;
1586		1900
1587	case 2:	1901	case 2:
…		…
1596	if (!prepare_cede_notself (aTHX_ &ta))	1910	if (!prepare_cede_notself (aTHX_ &ta))
1597	XSRETURN_EMPTY;	1911	XSRETURN_EMPTY;
1598		1912
1599	break;	1913	break;
1600	}	1914	}
		1915	SPAGAIN;
1601		1916
1602	BARRIER;	1917	BARRIER;
		1918	PUTBACK;
1603	TRANSFER (ta);	1919	TRANSFER (ta, 0);
1604		1920	SPAGAIN; /* might be the sp of a different coroutine now */
1605	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1921	/* be extra careful not to ever do anything after TRANSFER */
1606	XSRETURN_YES;
1607	}	1922	}
1608		1923
1609	bool	1924	bool
1610	_destroy (SV *coro_sv)	1925	_destroy (SV *coro_sv)
1611	CODE:	1926	CODE:
1612	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1927	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1613	OUTPUT:	1928	OUTPUT:
1614	RETVAL	1929	RETVAL
1615		1930
1616	void	1931	void
1617	_exit (code)	1932	_exit (int code)
1618	int code
1619	PROTOTYPE: $	1933	PROTOTYPE: $
1620	CODE:	1934	CODE:
1621	_exit (code);	1935	_exit (code);
1622		1936
1623	int	1937	int
1624	cctx_stacksize (int new_stacksize = 0)	1938	cctx_stacksize (int new_stacksize = 0)
1625	CODE:	1939	CODE:
1626	RETVAL = coro_stacksize;	1940	RETVAL = cctx_stacksize;
1627	if (new_stacksize)	1941	if (new_stacksize)
		1942	{
1628	coro_stacksize = new_stacksize;	1943	cctx_stacksize = new_stacksize;
		1944	++cctx_gen;
		1945	}
		1946	OUTPUT:
		1947	RETVAL
		1948
		1949	int
		1950	cctx_max_idle (int max_idle = 0)
		1951	CODE:
		1952	RETVAL = cctx_max_idle;
		1953	if (max_idle > 1)
		1954	cctx_max_idle = max_idle;
1629	OUTPUT:	1955	OUTPUT:
1630	RETVAL	1956	RETVAL
1631		1957
1632	int	1958	int
1633	cctx_count ()	1959	cctx_count ()
…		…
1657	call (Coro::State coro, SV *coderef)	1983	call (Coro::State coro, SV *coderef)
1658	ALIAS:	1984	ALIAS:
1659	eval = 1	1985	eval = 1
1660	CODE:	1986	CODE:
1661	{	1987	{
1662	if (coro->mainstack)	1988	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
1663	{	1989	{
1664	struct coro temp;	1990	struct coro temp;
1665		1991
1666	if (!(coro->flags & CF_RUNNING))	1992	if (!(coro->flags & CF_RUNNING))
1667	{	1993	{
		1994	PUTBACK;
1668	save_perl (aTHX_ &temp);	1995	save_perl (aTHX_ &temp);
1669	load_perl (aTHX_ coro);	1996	load_perl (aTHX_ coro);
1670	}	1997	}
1671		1998
1672	{	1999	{
1673	dSP;	2000	dSP;
1674	ENTER;	2001	ENTER;
1675	SAVETMPS;	2002	SAVETMPS;
		2003	PUTBACK;
		2004	PUSHSTACK;
1676	PUSHMARK (SP);	2005	PUSHMARK (SP);
1677	PUTBACK;
1678		2006
1679	if (ix)	2007	if (ix)
1680	eval_sv (coderef, 0);	2008	eval_sv (coderef, 0);
1681	else	2009	else
1682	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	2010	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1683		2011
		2012	POPSTACK;
1684	SPAGAIN;	2013	SPAGAIN;
1685	FREETMPS;	2014	FREETMPS;
1686	LEAVE;	2015	LEAVE;
1687	PUTBACK;	2016	PUTBACK;
1688	}	2017	}
1689		2018
1690	if (!(coro->flags & CF_RUNNING))	2019	if (!(coro->flags & CF_RUNNING))
1691	{	2020	{
1692	save_perl (aTHX_ coro);	2021	save_perl (aTHX_ coro);
1693	load_perl (aTHX_ &temp);	2022	load_perl (aTHX_ &temp);
		2023	SPAGAIN;
1694	}	2024	}
1695	}	2025	}
1696	}	2026	}
1697		2027
1698	SV *	2028	SV *
…		…
1710		2040
1711	void	2041	void
1712	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	2042	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1713		2043
1714	SV *	2044	SV *
1715	has_stack (Coro::State coro)	2045	has_cctx (Coro::State coro)
1716	PROTOTYPE: $	2046	PROTOTYPE: $
1717	CODE:	2047	CODE:
1718	RETVAL = boolSV (!!coro->cctx);	2048	RETVAL = boolSV (!!coro->cctx);
1719	OUTPUT:	2049	OUTPUT:
1720	RETVAL	2050	RETVAL
…		…
1725	CODE:	2055	CODE:
1726	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;	2056	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1727	OUTPUT:	2057	OUTPUT:
1728	RETVAL	2058	RETVAL
1729		2059
1730	IV	2060	UV
1731	rss (Coro::State coro)	2061	rss (Coro::State coro)
1732	PROTOTYPE: $	2062	PROTOTYPE: $
1733	ALIAS:	2063	ALIAS:
1734	usecount = 1	2064	usecount = 1
1735	CODE:	2065	CODE:
…		…
1739	case 1: RETVAL = coro->usecount; break;	2069	case 1: RETVAL = coro->usecount; break;
1740	}	2070	}
1741	OUTPUT:	2071	OUTPUT:
1742	RETVAL	2072	RETVAL
1743		2073
		2074	void
		2075	force_cctx ()
		2076	CODE:
		2077	struct coro *coro = SvSTATE (coro_current);
		2078	coro->cctx->idle_sp = 0;
		2079
		2080	void
		2081	swap_defsv (Coro::State self)
		2082	PROTOTYPE: $
		2083	ALIAS:
		2084	swap_defav = 1
		2085	CODE:
		2086	if (!self->slot)
		2087	croak ("cannot swap state with coroutine that has no saved state");
		2088	else
		2089	{
		2090	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2091	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		2092
		2093	SV tmp = src; src = dst; *dst = tmp;
		2094	}
1744		2095
1745	MODULE = Coro::State PACKAGE = Coro	2096	MODULE = Coro::State PACKAGE = Coro
1746		2097
1747	BOOT:	2098	BOOT:
1748	{	2099	{
1749	int i;	2100	int i;
1750		2101
1751	sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1752	sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1753	av_async_pool = coro_get_av ("Coro::async_pool", TRUE);	2102	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		2103	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		2104	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1754		2105
1755	coro_current = coro_get_sv ("Coro::current", FALSE);	2106	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1756	SvREADONLY_on (coro_current);	2107	SvREADONLY_on (coro_current);
1757		2108
1758	coro_stash = gv_stashpv ("Coro", TRUE);	2109	coro_stash = gv_stashpv ("Coro", TRUE);
1759		2110
1760	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2111	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
1788	void	2139	void
1789	_set_current (SV *current)	2140	_set_current (SV *current)
1790	PROTOTYPE: $	2141	PROTOTYPE: $
1791	CODE:	2142	CODE:
1792	SvREFCNT_dec (SvRV (coro_current));	2143	SvREFCNT_dec (SvRV (coro_current));
1793	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	2144	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2145
		2146	void
		2147	_set_readyhook (SV *hook)
		2148	PROTOTYPE: $
		2149	CODE:
		2150	LOCK;
		2151	SvREFCNT_dec (coro_readyhook);
		2152	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2153	UNLOCK;
1794		2154
1795	int	2155	int
1796	prio (Coro::State coro, int newprio = 0)	2156	prio (Coro::State coro, int newprio = 0)
1797	ALIAS:	2157	ALIAS:
1798	nice = 1	2158	nice = 1
…		…
1843	CODE:	2203	CODE:
1844	{	2204	{
1845	struct coro *coro = SvSTATE (coro_current);	2205	struct coro *coro = SvSTATE (coro_current);
1846	HV hv = (HV )SvRV (coro_current);	2206	HV hv = (HV )SvRV (coro_current);
1847	AV *defav = GvAV (PL_defgv);	2207	AV *defav = GvAV (PL_defgv);
1848	SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);	2208	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1849	AV *invoke_av;	2209	AV *invoke_av;
1850	int i, len;	2210	int i, len;
1851		2211
1852	if (!invoke)	2212	if (!invoke)
		2213	{
		2214	SV *old = PL_diehook;
		2215	PL_diehook = 0;
		2216	SvREFCNT_dec (old);
1853	croak ("\3async_pool terminate\2\n");	2217	croak ("\3async_pool terminate\2\n");
		2218	}
1854		2219
1855	SvREFCNT_dec (coro->saved_deffh);	2220	SvREFCNT_dec (coro->saved_deffh);
1856	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2221	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1857		2222
1858	hv_store (hv, "desc", sizeof ("desc") - 1,	2223	hv_store (hv, "desc", sizeof ("desc") - 1,
1859	newSVpvn (strpair ("[async_pool]")), 0);	2224	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1860		2225
1861	invoke_av = (AV *)SvRV (invoke);	2226	invoke_av = (AV *)SvRV (invoke);
1862	len = av_len (invoke_av);	2227	len = av_len (invoke_av);
1863		2228
1864	sv_setsv (cb, AvARRAY (invoke_av)[0]);	2229	sv_setsv (cb, AvARRAY (invoke_av)[0]);
1865		2230
1866	if (len > 0)	2231	if (len > 0)
1867	{	2232	{
1868	av_fill (defav, len - 1);	2233	av_fill (defav, len - 1);
1869	for (i = 0; i < len; ++i)	2234	for (i = 0; i < len; ++i)
1870	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2235	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1871	}	2236	}
1872		2237
1873	SvREFCNT_dec (invoke);	2238	SvREFCNT_dec (invoke);
1874	}	2239	}
1875		2240
…		…
1882	sv_setsv (cb, &PL_sv_undef);	2247	sv_setsv (cb, &PL_sv_undef);
1883		2248
1884	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2249	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1885	coro->saved_deffh = 0;	2250	coro->saved_deffh = 0;
1886		2251
1887	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2252	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1888	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2253	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2254	{
		2255	SV *old = PL_diehook;
		2256	PL_diehook = 0;
		2257	SvREFCNT_dec (old);
1889	croak ("\3async_pool terminate\2\n");	2258	croak ("\3async_pool terminate\2\n");
		2259	}
1890		2260
1891	av_clear (GvAV (PL_defgv));	2261	av_clear (GvAV (PL_defgv));
1892	hv_store ((HV *)SvRV (coro_current), strpair ("desc"),	2262	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1893	newSVpvn (strpair ("[async_pool idle]")), 0);	2263	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1894		2264
1895	coro->prio = 0;	2265	coro->prio = 0;
1896		2266
1897	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2267	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1898	api_trace (coro_current, 0);	2268	api_trace (coro_current, 0);
1899		2269
1900	av_push (av_async_pool, newSVsv (coro_current));	2270	av_push (av_async_pool, newSVsv (coro_current));
1901	}	2271	}
1902		2272
		2273	#if 0
		2274
		2275	void
		2276	_generator_call (...)
		2277	PROTOTYPE: @
		2278	PPCODE:
		2279	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2280	xxxx
		2281	abort ();
		2282
		2283	SV *
		2284	gensub (SV *sub, ...)
		2285	PROTOTYPE: &;@
		2286	CODE:
		2287	{
		2288	struct coro *coro;
		2289	MAGIC *mg;
		2290	CV *xcv;
		2291	CV ncv = (CV )newSV_type (SVt_PVCV);
		2292	int i;
		2293
		2294	CvGV (ncv) = CvGV (cv);
		2295	CvFILE (ncv) = CvFILE (cv);
		2296
		2297	Newz (0, coro, 1, struct coro);
		2298	coro->args = newAV ();
		2299	coro->flags = CF_NEW;
		2300
		2301	av_extend (coro->args, items - 1);
		2302	for (i = 1; i < items; i++)
		2303	av_push (coro->args, newSVsv (ST (i)));
		2304
		2305	CvISXSUB_on (ncv);
		2306	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2307
		2308	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2309
		2310	CvXSUB (ncv) = CvXSUB (xcv);
		2311	CvANON_on (ncv);
		2312
		2313	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2314	RETVAL = newRV_noinc ((SV *)ncv);
		2315	}
		2316	OUTPUT:
		2317	RETVAL
		2318
		2319	#endif
		2320
1903		2321
1904	MODULE = Coro::State PACKAGE = Coro::AIO	2322	MODULE = Coro::State PACKAGE = Coro::AIO
1905		2323
1906	SV *	2324	void
1907	_get_state ()	2325	_get_state (SV *self)
1908	CODE:	2326	PPCODE:
1909	{	2327	{
1910	struct io_state *data;	2328	AV *defav = GvAV (PL_defgv);
1911		2329	AV *av = newAV ();
		2330	int i;
1912	RETVAL = newSV (sizeof (struct io_state));	2331	SV *data_sv = newSV (sizeof (struct io_state));
1913	data = (struct io_state *)SvPVX (RETVAL);	2332	struct io_state data = (struct io_state )SvPVX (data_sv);
1914	SvCUR_set (RETVAL, sizeof (struct io_state));	2333	SvCUR_set (data_sv, sizeof (struct io_state));
1915	SvPOK_only (RETVAL);	2334	SvPOK_only (data_sv);
1916		2335
1917	data->errorno = errno;	2336	data->errorno = errno;
1918	data->laststype = PL_laststype;	2337	data->laststype = PL_laststype;
1919	data->laststatval = PL_laststatval;	2338	data->laststatval = PL_laststatval;
1920	data->statcache = PL_statcache;	2339	data->statcache = PL_statcache;
		2340
		2341	av_extend (av, AvFILLp (defav) + 1 + 1);
		2342
		2343	for (i = 0; i <= AvFILLp (defav); ++i)
		2344	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2345
		2346	av_push (av, data_sv);
		2347
		2348	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2349
		2350	api_ready (self);
1921	}	2351	}
1922	OUTPUT:
1923	RETVAL
1924		2352
1925	void	2353	void
1926	_set_state (char *data_)	2354	_set_state (SV *state)
1927	PROTOTYPE: $	2355	PROTOTYPE: $
1928	CODE:	2356	PPCODE:
1929	{	2357	{
1930	struct io_state data = (void )data_;	2358	AV av = (AV )SvRV (state);
		2359	struct io_state data = (struct io_state )SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2360	int i;
1931		2361
1932	errno = data->errorno;	2362	errno = data->errorno;
1933	PL_laststype = data->laststype;	2363	PL_laststype = data->laststype;
1934	PL_laststatval = data->laststatval;	2364	PL_laststatval = data->laststatval;
1935	PL_statcache = data->statcache;	2365	PL_statcache = data->statcache;
1936	}
1937		2366
		2367	EXTEND (SP, AvFILLp (av));
		2368	for (i = 0; i < AvFILLp (av); ++i)
		2369	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2370	}
		2371
		2372
		2373	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2374
		2375	BOOT:
		2376	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2377
		2378	SV *
		2379	_schedule (...)
		2380	PROTOTYPE: @
		2381	CODE:
		2382	{
		2383	static int incede;
		2384
		2385	api_cede_notself ();
		2386
		2387	++incede;
		2388	while (coro_nready >= incede && api_cede ())
		2389	;
		2390
		2391	sv_setsv (sv_activity, &PL_sv_undef);
		2392	if (coro_nready >= incede)
		2393	{
		2394	PUSHMARK (SP);
		2395	PUTBACK;
		2396	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2397	SPAGAIN;
		2398	}
		2399
		2400	--incede;
		2401	}
		2402
		2403
		2404	MODULE = Coro::State PACKAGE = PerlIO::cede
		2405
		2406	BOOT:
		2407	PerlIO_define_layer (aTHX_ &PerlIO_cede);

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Comparing Coro/Coro/State.xs (file contents): Revision 1.200 by root, Sun Oct 7 15:08:23 2007 UTC vs. Revision 1.258 by root, Sun Nov 9 23:08:49 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.200 by root, Sun Oct 7 15:08:23 2007 UTC vs.
Revision 1.258 by root, Sun Nov 9 23:08:49 2008 UTC