[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 1.259 by root, Mon Nov 10 00:02:29 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 */
		186	static volatile char next_has_throw; /* speedup flag for next->throw check */
152		187
153	static GV irsgv; / $/ */	188	static GV irsgv; / $/ */
154	static GV stdoutgv; / STDOUT /	189	static GV stdoutgv; / STDOUT /
155		190	static SV *rv_diehook;
		191	static SV *rv_warnhook;
156	static HV hv_sig; / %SIG */	192	static HV hv_sig; / %SIG */
157	static SV *sv_diehook;
158	static SV *sv_warnhook;
159		193
160	/* async_pool helper stuff */	194	/* async_pool helper stuff */
161	static SV *sv_pool_rss;	195	static SV *sv_pool_rss;
162	static SV *sv_pool_size;	196	static SV *sv_pool_size;
163	static AV *av_async_pool;	197	static AV *av_async_pool;
		198
		199	/* Coro::AnyEvent */
		200	static SV *sv_activity;
164		201
165	static struct coro_cctx *cctx_first;	202	static struct coro_cctx *cctx_first;
166	static int cctx_count, cctx_idle;	203	static int cctx_count, cctx_idle;
167		204
168	enum {	205	enum {
…		…
186	void idle_sp; / sp of top-level transfer/schedule/cede call */	223	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 */	224	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
188	JMPENV *top_env;	225	JMPENV *top_env;
189	coro_context cctx;	226	coro_context cctx;
190		227
		228	U32 gen;
191	#if CORO_USE_VALGRIND	229	#if CORO_USE_VALGRIND
192	int valgrind_id;	230	int valgrind_id;
193	#endif	231	#endif
194	unsigned char flags;	232	unsigned char flags;
195	} coro_cctx;	233	} coro_cctx;
…		…
221		259
222	/* process data */	260	/* process data */
223	AV *mainstack;	261	AV *mainstack;
224	perl_slots slot; / basically the saved sp */	262	perl_slots slot; / basically the saved sp */
225		263
226	/* data associated with this coroutine (initial args) */	264	AV args; / data associated with this coroutine (initial args) */
227	AV *args;	265	int refcnt; /* coroutines are refcounted, yes */
228	int refcnt;
229	int flags; /* CF_ flags */	266	int flags; /* CF_ flags */
		267	HV hv; / the perl hash associated with this coro, if any */
230		268
231	/* statistics */	269	/* statistics */
232	int usecount; /* number of transfers to this coro */	270	int usecount; /* number of transfers to this coro */
233		271
234	/* coro process data */	272	/* coro process data */
235	int prio;	273	int prio;
236	SV *throw;	274	SV throw; / exception to be thrown */
237		275
238	/* async_pool */	276	/* async_pool */
239	SV *saved_deffh;	277	SV *saved_deffh;
240		278
241	/* linked list */	279	/* linked list */
242	struct coro next, prev;	280	struct coro next, prev;
243	HV hv; / the perl hash associated with this coro, if any */
244	};	281	};
245		282
246	typedef struct coro *Coro__State;	283	typedef struct coro *Coro__State;
247	typedef struct coro *Coro__State_or_hashref;	284	typedef struct coro *Coro__State_or_hashref;
248		285
…		…
255	#define PRIO_IDLE -3	292	#define PRIO_IDLE -3
256	#define PRIO_MIN -4	293	#define PRIO_MIN -4
257		294
258	/* for Coro.pm */	295	/* for Coro.pm */
259	static SV *coro_current;	296	static SV *coro_current;
		297	static SV *coro_readyhook;
260	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	298	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
261	static int coro_nready;	299	static int coro_nready;
262	static struct coro *coro_first;	300	static struct coro *coro_first;
263		301
264	/ lowlevel stuff ********************************************************/	302	/ lowlevel stuff ********************************************************/
265		303
266	static SV *	304	static SV *
267	coro_get_sv (const char *name, int create)	305	coro_get_sv (pTHX_ const char *name, int create)
268	{	306	{
269	#if PERL_VERSION_ATLEAST (5,9,0)	307	#if PERL_VERSION_ATLEAST (5,10,0)
270	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	308	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
271	get_sv (name, create);	309	get_sv (name, create);
272	#endif	310	#endif
273	return get_sv (name, create);	311	return get_sv (name, create);
274	}	312	}
275		313
276	static AV *	314	static AV *
277	coro_get_av (const char *name, int create)	315	coro_get_av (pTHX_ const char *name, int create)
278	{	316	{
279	#if PERL_VERSION_ATLEAST (5,9,0)	317	#if PERL_VERSION_ATLEAST (5,10,0)
280	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	318	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
281	get_av (name, create);	319	get_av (name, create);
282	#endif	320	#endif
283	return get_av (name, create);	321	return get_av (name, create);
284	}	322	}
285		323
286	static HV *	324	static HV *
287	coro_get_hv (const char *name, int create)	325	coro_get_hv (pTHX_ const char *name, int create)
288	{	326	{
289	#if PERL_VERSION_ATLEAST (5,9,0)	327	#if PERL_VERSION_ATLEAST (5,10,0)
290	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	328	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
291	get_hv (name, create);	329	get_hv (name, create);
292	#endif	330	#endif
293	return get_hv (name, create);	331	return get_hv (name, create);
294	}	332	}
…		…
299	AV *padlist = CvPADLIST (cv);	337	AV *padlist = CvPADLIST (cv);
300	AV newpadlist, newpad;	338	AV newpadlist, newpad;
301		339
302	newpadlist = newAV ();	340	newpadlist = newAV ();
303	AvREAL_off (newpadlist);	341	AvREAL_off (newpadlist);
304	#if PERL_VERSION_ATLEAST (5,9,0)	342	#if PERL_VERSION_ATLEAST (5,10,0)
305	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	343	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
306	#else	344	#else
307	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	345	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
308	#endif	346	#endif
309	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	347	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
310	--AvFILLp (padlist);	348	--AvFILLp (padlist);
311		349
312	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	350	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
313	av_store (newpadlist, 1, (SV *)newpad);	351	av_store (newpadlist, 1, (SV *)newpad);
314		352
315	return newpadlist;	353	return newpadlist;
316	}	354	}
317		355
…		…
347		385
348	/* casting is fun. */	386	/* casting is fun. */
349	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	387	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
350	free_padlist (aTHX_ padlist);	388	free_padlist (aTHX_ padlist);
351		389
352	SvREFCNT_dec (av);	390	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
353		391
354	return 0;	392	return 0;
355	}	393	}
356		394
357	#define PERL_MAGIC_coro PERL_MAGIC_ext	395	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		396	#define CORO_MAGIC_type_state PERL_MAGIC_ext
358		397
359	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	398	static MGVTBL coro_cv_vtbl = {
		399	0, 0, 0, 0,
		400	coro_cv_free
		401	};
360		402
361	#define CORO_MAGIC(cv) \	403	#define CORO_MAGIC(sv, type) \
362	SvMAGIC (cv) \	404	SvMAGIC (sv) \
363	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	405	? SvMAGIC (sv)->mg_type == type \
364	? SvMAGIC (cv) \	406	? SvMAGIC (sv) \
365	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	407	: mg_find (sv, type) \
366	: 0	408	: 0
		409
		410	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		411	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
367		412
368	static struct coro *	413	static struct coro *
369	SvSTATE_ (pTHX_ SV *coro)	414	SvSTATE_ (pTHX_ SV *coro)
370	{	415	{
371	HV *stash;	416	HV *stash;
…		…
383	/* very slow, but rare, check */	428	/* very slow, but rare, check */
384	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	429	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
385	croak ("Coro::State object required");	430	croak ("Coro::State object required");
386	}	431	}
387		432
388	mg = CORO_MAGIC (coro);	433	mg = CORO_MAGIC_state (coro);
389	return (struct coro *)mg->mg_ptr;	434	return (struct coro *)mg->mg_ptr;
390	}	435	}
391		436
392	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	437	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
393		438
394	/* the next two functions merely cache the padlists */	439	/* the next two functions merely cache the padlists */
395	static void	440	static void
396	get_padlist (pTHX_ CV *cv)	441	get_padlist (pTHX_ CV *cv)
397	{	442	{
398	MAGIC *mg = CORO_MAGIC (cv);	443	MAGIC *mg = CORO_MAGIC_cv (cv);
399	AV *av;	444	AV *av;
400		445
401	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	446	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
402	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	447	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
403	else	448	else
404	{	449	{
405	#if CORO_PREFER_PERL_FUNCTIONS	450	#if CORO_PREFER_PERL_FUNCTIONS
406	/* this is probably cleaner, but also slower? */	451	/* this is probably cleaner? but also slower! */
		452	/* in practise, it seems to be less stable */
407	CV *cp = Perl_cv_clone (cv);	453	CV *cp = Perl_cv_clone (cv);
408	CvPADLIST (cv) = CvPADLIST (cp);	454	CvPADLIST (cv) = CvPADLIST (cp);
409	CvPADLIST (cp) = 0;	455	CvPADLIST (cp) = 0;
410	SvREFCNT_dec (cp);	456	SvREFCNT_dec (cp);
411	#else	457	#else
…		…
415	}	461	}
416		462
417	static void	463	static void
418	put_padlist (pTHX_ CV *cv)	464	put_padlist (pTHX_ CV *cv)
419	{	465	{
420	MAGIC *mg = CORO_MAGIC (cv);	466	MAGIC *mg = CORO_MAGIC_cv (cv);
421	AV *av;	467	AV *av;
422		468
423	if (expect_false (!mg))	469	if (expect_false (!mg))
424	{	470	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		471
431	av = (AV *)mg->mg_obj;	472	av = (AV *)mg->mg_obj;
432		473
433	if (expect_false (AvFILLp (av) >= AvMAX (av)))	474	if (expect_false (AvFILLp (av) >= AvMAX (av)))
434	av_extend (av, AvMAX (av) + 1);	475	av_extend (av, AvMAX (av) + 1);
…		…
500		541
501	if (expect_true (CvDEPTH (cv)))	542	if (expect_true (CvDEPTH (cv)))
502	{	543	{
503	EXTEND (SP, 3);	544	EXTEND (SP, 3);
504	PUSHs ((SV *)CvPADLIST (cv));	545	PUSHs ((SV *)CvPADLIST (cv));
505	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	546	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
506	PUSHs ((SV *)cv);	547	PUSHs ((SV *)cv);
507		548
508	CvDEPTH (cv) = 0;	549	CvDEPTH (cv) = 0;
509	get_padlist (aTHX_ cv);	550	get_padlist (aTHX_ cv);
510	}	551	}
…		…
521		562
522	PUTBACK;	563	PUTBACK;
523	}	564	}
524		565
525	/* allocate some space on the context stack for our purposes */	566	/* allocate some space on the context stack for our purposes */
		567	/* we manually unroll here, as usually 2 slots is enough */
		568	if (SLOT_COUNT >= 1) CXINC;
		569	if (SLOT_COUNT >= 2) CXINC;
		570	if (SLOT_COUNT >= 3) CXINC;
526	{	571	{
527	/* we manually unroll here, as usually 2 slots is enough */
528	int i;	572	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)	573	for (i = 3; i < SLOT_COUNT; ++i)
533	CXINC;	574	CXINC;
534
535	cxstack_ix -= SLOT_COUNT; /* undo allocation */
536	}	575	}
		576	cxstack_ix -= SLOT_COUNT; /* undo allocation */
537		577
538	c->mainstack = PL_mainstack;	578	c->mainstack = PL_mainstack;
539		579
540	{	580	{
541	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);	581	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
…		…
591		631
592	New(54,PL_savestack,24,ANY);	632	New(54,PL_savestack,24,ANY);
593	PL_savestack_ix = 0;	633	PL_savestack_ix = 0;
594	PL_savestack_max = 24;	634	PL_savestack_max = 24;
595		635
596	#if !PERL_VERSION_ATLEAST (5,9,0)	636	#if !PERL_VERSION_ATLEAST (5,10,0)
597	New(54,PL_retstack,4,OP*);	637	New(54,PL_retstack,4,OP*);
598	PL_retstack_ix = 0;	638	PL_retstack_ix = 0;
599	PL_retstack_max = 4;	639	PL_retstack_max = 4;
600	#endif	640	#endif
601	}	641	}
…		…
603		643
604	/*	644	/*
605	* destroy the stacks, the callchain etc...	645	* destroy the stacks, the callchain etc...
606	*/	646	*/
607	static void	647	static void
608	coro_destroy_stacks (pTHX)	648	coro_destruct_stacks (pTHX)
609	{	649	{
610	while (PL_curstackinfo->si_next)	650	while (PL_curstackinfo->si_next)
611	PL_curstackinfo = PL_curstackinfo->si_next;	651	PL_curstackinfo = PL_curstackinfo->si_next;
612		652
613	while (PL_curstackinfo)	653	while (PL_curstackinfo)
…		…
624		664
625	Safefree (PL_tmps_stack);	665	Safefree (PL_tmps_stack);
626	Safefree (PL_markstack);	666	Safefree (PL_markstack);
627	Safefree (PL_scopestack);	667	Safefree (PL_scopestack);
628	Safefree (PL_savestack);	668	Safefree (PL_savestack);
629	#if !PERL_VERSION_ATLEAST (5,9,0)	669	#if !PERL_VERSION_ATLEAST (5,10,0)
630	Safefree (PL_retstack);	670	Safefree (PL_retstack);
631	#endif	671	#endif
632	}	672	}
633		673
634	static size_t	674	static size_t
…		…
650	#undef VAR	690	#undef VAR
651	}	691	}
652	else	692	else
653	slot = coro->slot;	693	slot = coro->slot;
654		694
		695	if (slot)
		696	{
655	rss += sizeof (slot->curstackinfo);	697	rss += sizeof (slot->curstackinfo);
656	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	698	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
657	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	699	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
658	rss += slot->tmps_max * sizeof (SV *);	700	rss += slot->tmps_max * sizeof (SV *);
659	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	701	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
660	rss += slot->scopestack_max * sizeof (I32);	702	rss += slot->scopestack_max * sizeof (I32);
661	rss += slot->savestack_max * sizeof (ANY);	703	rss += slot->savestack_max * sizeof (ANY);
662		704
663	#if !PERL_VERSION_ATLEAST (5,9,0)	705	#if !PERL_VERSION_ATLEAST (5,10,0)
664	rss += slot->retstack_max * sizeof (OP *);	706	rss += slot->retstack_max * sizeof (OP *);
665	#endif	707	#endif
		708	}
666	}	709	}
667		710
668	return rss;	711	return rss;
669	}	712	}
670		713
671	/ coroutine stack handling **********************************************/	714	/ coroutine stack handling **********************************************/
		715
		716	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		717	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		718	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		719
		720	/* apparently < 5.8.8 */
		721	#ifndef MgPV_nolen_const
		722	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		723	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		724	(const char*)(mg)->mg_ptr)
		725	#endif
		726
		727	/*
		728	* This overrides the default magic get method of %SIG elements.
		729	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		730	* and instead of tryign to save and restore the hash elements, we just provide
		731	* readback here.
		732	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		733	* not expecting this to actually change the hook. This is a potential problem
		734	* when a schedule happens then, but we ignore this.
		735	*/
		736	static int
		737	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		738	{
		739	const char *s = MgPV_nolen_const (mg);
		740
		741	if (*s == '_')
		742	{
		743	SV **svp = 0;
		744
		745	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		746	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		747
		748	if (svp)
		749	{
		750	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		751	return 0;
		752	}
		753	}
		754
		755	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		756	}
		757
		758	static int
		759	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		760	{
		761	const char *s = MgPV_nolen_const (mg);
		762
		763	if (*s == '_')
		764	{
		765	SV **svp = 0;
		766
		767	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		768	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		769
		770	if (svp)
		771	{
		772	SV old = svp;
		773	*svp = 0;
		774	SvREFCNT_dec (old);
		775	return 0;
		776	}
		777	}
		778
		779	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		780	}
		781
		782	static int
		783	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		784	{
		785	const char *s = MgPV_nolen_const (mg);
		786
		787	if (*s == '_')
		788	{
		789	SV **svp = 0;
		790
		791	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		792	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		793
		794	if (svp)
		795	{
		796	SV old = svp;
		797	*svp = newSVsv (sv);
		798	SvREFCNT_dec (old);
		799	return 0;
		800	}
		801	}
		802
		803	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		804	}
672		805
673	static void	806	static void
674	coro_setup (pTHX_ struct coro *coro)	807	coro_setup (pTHX_ struct coro *coro)
675	{	808	{
676	/*	809	/*
…		…
685	PL_curpm = 0;	818	PL_curpm = 0;
686	PL_curpad = 0;	819	PL_curpad = 0;
687	PL_localizing = 0;	820	PL_localizing = 0;
688	PL_dirty = 0;	821	PL_dirty = 0;
689	PL_restartop = 0;	822	PL_restartop = 0;
690	SvREFCNT_inc (PL_diehook ); hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);	823	#if PERL_VERSION_ATLEAST (5,10,0)
691	SvREFCNT_inc (PL_warnhook); hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);	824	PL_parser = 0;
		825	#endif
		826
		827	/* recreate the die/warn hooks */
		828	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		829	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
692		830
693	GvSV (PL_defgv) = newSV (0);	831	GvSV (PL_defgv) = newSV (0);
694	GvAV (PL_defgv) = coro->args; coro->args = 0;	832	GvAV (PL_defgv) = coro->args; coro->args = 0;
695	GvSV (PL_errgv) = newSV (0);	833	GvSV (PL_errgv) = newSV (0);
696	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	834	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
697	PL_rs = newSVsv (GvSV (irsgv));	835	PL_rs = newSVsv (GvSV (irsgv));
698	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);	836	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
699		837
700	{	838	{
701	dSP;	839	dSP;
702	LOGOP myop;	840	LOGOP myop;
703		841
…		…
711	PL_op = (OP *)&myop;	849	PL_op = (OP *)&myop;
712	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	850	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
713	SPAGAIN;	851	SPAGAIN;
714	}	852	}
715		853
716	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	854	/* this newly created coroutine might be run on an existing cctx which most
		855	* likely was suspended in set_stacklevel, called from entersub.
		856	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		857	* so we ENTER here for symmetry
		858	*/
		859	ENTER;
717	}	860	}
718		861
719	static void	862	static void
720	coro_destroy (pTHX_ struct coro *coro)	863	coro_destruct (pTHX_ struct coro *coro)
721	{	864	{
722	if (!IN_DESTRUCT)	865	if (!IN_DESTRUCT)
723	{	866	{
724	/* restore all saved variables and stuff */	867	/* restore all saved variables and stuff */
725	LEAVE_SCOPE (0);	868	LEAVE_SCOPE (0);
…		…
747	SvREFCNT_dec (PL_warnhook);	890	SvREFCNT_dec (PL_warnhook);
748		891
749	SvREFCNT_dec (coro->saved_deffh);	892	SvREFCNT_dec (coro->saved_deffh);
750	SvREFCNT_dec (coro->throw);	893	SvREFCNT_dec (coro->throw);
751		894
752	coro_destroy_stacks (aTHX);	895	coro_destruct_stacks (aTHX);
753	}	896	}
754		897
755	static void	898	static void
756	free_coro_mortal (pTHX)	899	free_coro_mortal (pTHX)
757	{	900	{
…		…
794	: cx->blk_gimme == G_SCALAR ? bot + 1	937	: cx->blk_gimme == G_SCALAR ? bot + 1
795	: bot;	938	: bot;
796		939
797	av_extend (av, top - bot);	940	av_extend (av, top - bot);
798	while (bot < top)	941	while (bot < top)
799	av_push (av, SvREFCNT_inc (*bot++));	942	av_push (av, SvREFCNT_inc_NN (*bot++));
800		943
801	PL_runops = RUNOPS_DEFAULT;	944	PL_runops = RUNOPS_DEFAULT;
802	ENTER;	945	ENTER;
803	SAVETMPS;	946	SAVETMPS;
804	EXTEND (SP, 3);	947	EXTEND (SP, 3);
805	PUSHMARK (SP);	948	PUSHMARK (SP);
806	PUSHs (&PL_sv_no);	949	PUSHs (&PL_sv_no);
807	PUSHs (fullname);	950	PUSHs (fullname);
808	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	951	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
809	PUTBACK;	952	PUTBACK;
810	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	953	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);	954	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
812	SPAGAIN;	955	SPAGAIN;
813	FREETMPS;	956	FREETMPS;
814	LEAVE;	957	LEAVE;
815	PL_runops = runops_trace;	958	PL_runops = runops_trace;
…		…
842	SAVETMPS;	985	SAVETMPS;
843	EXTEND (SP, 3);	986	EXTEND (SP, 3);
844	PUSHMARK (SP);	987	PUSHMARK (SP);
845	PUSHs (&PL_sv_yes);	988	PUSHs (&PL_sv_yes);
846	PUSHs (fullname);	989	PUSHs (fullname);
847	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	990	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
848	PUTBACK;	991	PUTBACK;
849	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	992	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);	993	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
851	SPAGAIN;	994	SPAGAIN;
852	FREETMPS;	995	FREETMPS;
853	LEAVE;	996	LEAVE;
854	PL_runops = runops_trace;	997	PL_runops = runops_trace;
…		…
868	PL_runops = RUNOPS_DEFAULT;	1011	PL_runops = RUNOPS_DEFAULT;
869	PUSHMARK (SP);	1012	PUSHMARK (SP);
870	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));	1013	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
871	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));	1014	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
872	PUTBACK;	1015	PUTBACK;
873	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0);	1016	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);	1017	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
875	SPAGAIN;	1018	SPAGAIN;
876	FREETMPS;	1019	FREETMPS;
877	LEAVE;	1020	LEAVE;
878	PL_runops = runops_trace;	1021	PL_runops = runops_trace;
…		…
887	}	1030	}
888		1031
889	/* inject a fake call to Coro::State::_cctx_init into the execution */	1032	/* 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 */	1033	/* _cctx_init should be careful, as it could be called at almost any time */
891	/* during execution of a perl program */	1034	/* during execution of a perl program */
		1035	/* also initialises PL_top_env */
892	static void NOINLINE	1036	static void NOINLINE
893	prepare_cctx (pTHX_ coro_cctx *cctx)	1037	cctx_prepare (pTHX_ coro_cctx *cctx)
894	{	1038	{
895	dSP;	1039	dSP;
896	LOGOP myop;	1040	LOGOP myop;
897		1041
898	PL_top_env = &PL_start_env;	1042	PL_top_env = &PL_start_env;
…		…
912	PL_op = (OP *)&myop;	1056	PL_op = (OP *)&myop;
913	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	1057	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
914	SPAGAIN;	1058	SPAGAIN;
915	}	1059	}
916		1060
		1061	/* the tail of transfer: execute stuff we can onyl do afetr a transfer */
		1062	static void
		1063	transfer_tail (void)
		1064	{
		1065	UNLOCK;
		1066
		1067	if (expect_false (next_has_throw))
		1068	{
		1069	struct coro *coro = SvSTATE (coro_current);
		1070
		1071	if (coro->throw)
		1072	{
		1073	SV *exception = coro->throw;
		1074	coro->throw = 0;
		1075	sv_setsv (ERRSV, exception);
		1076	croak (0);
		1077	}
		1078	}
		1079	}
		1080
917	/*	1081	/*
918	* this is a _very_ stripped down perl interpreter ;)	1082	* this is a _very_ stripped down perl interpreter ;)
919	*/	1083	*/
920	static void	1084	static void
921	coro_run (void *arg)	1085	cctx_run (void *arg)
922	{	1086	{
		1087	#ifdef USE_ITHREADS
		1088	# if CORO_PTHREAD
		1089	PERL_SET_CONTEXT (coro_thx);
		1090	# endif
		1091	#endif
		1092	{
923	dTHX;	1093	dTHX;
924		1094
925	/* coro_run is the alternative tail of transfer(), so unlock here. */
926	UNLOCK;
927
928	/* we now skip the entersub that lead to transfer() */	1095	/* we now skip the entersub that lead to transfer () */
929	PL_op = PL_op->op_next;	1096	PL_op = PL_op->op_next;
930		1097
931	/* inject a fake subroutine call to cctx_init */	1098	/* inject a fake subroutine call to cctx_init */
932	prepare_cctx (aTHX_ (coro_cctx *)arg);	1099	cctx_prepare (aTHX_ (coro_cctx *)arg);
933		1100
		1101	/* cctx_run is the alternative tail of transfer () */
		1102	transfer_tail ();
		1103
934	/* somebody or something will hit me for both perl_run and PL_restartop */	1104	/* somebody or something will hit me for both perl_run and PL_restartop */
935	PL_restartop = PL_op;	1105	PL_restartop = PL_op;
936	perl_run (PL_curinterp);	1106	perl_run (PL_curinterp);
937		1107
938	/*	1108	/*
939	* If perl-run returns we assume exit() was being called or the coro	1109	* 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)	1110	* 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	1111	* 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"	1112	* bootstrap-time "top" top_env, as we cannot restore the "main"
943	* coroutine as Coro has no such concept	1113	* coroutine as Coro has no such concept
944	*/	1114	*/
945	PL_top_env = main_top_env;	1115	PL_top_env = main_top_env;
946	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1116	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
		1117	}
947	}	1118	}
948		1119
949	static coro_cctx *	1120	static coro_cctx *
950	cctx_new ()	1121	cctx_new ()
951	{	1122	{
952	coro_cctx *cctx;	1123	coro_cctx *cctx;
		1124
		1125	++cctx_count;
		1126	New (0, cctx, 1, coro_cctx);
		1127
		1128	cctx->gen = cctx_gen;
		1129	cctx->flags = 0;
		1130	cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel */
		1131
		1132	return cctx;
		1133	}
		1134
		1135	/* create a new cctx only suitable as source */
		1136	static coro_cctx *
		1137	cctx_new_empty ()
		1138	{
		1139	coro_cctx *cctx = cctx_new ();
		1140
		1141	cctx->sptr = 0;
		1142	coro_create (&cctx->cctx, 0, 0, 0, 0);
		1143
		1144	return cctx;
		1145	}
		1146
		1147	/* create a new cctx suitable as destination/running a perl interpreter */
		1148	static coro_cctx *
		1149	cctx_new_run ()
		1150	{
		1151	coro_cctx *cctx = cctx_new ();
953	void *stack_start;	1152	void *stack_start;
954	size_t stack_size;	1153	size_t stack_size;
955		1154
956	++cctx_count;
957
958	Newz (0, cctx, 1, coro_cctx);
959
960	#if HAVE_MMAP	1155	#if HAVE_MMAP
961
962	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1156	cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
963	/* mmap supposedly does allocate-on-write for us */	1157	/* 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);	1158	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
965		1159
966	if (cctx->sptr != (void *)-1)	1160	if (cctx->sptr != (void *)-1)
967	{	1161	{
…		…
973	cctx->flags \|= CC_MAPPED;	1167	cctx->flags \|= CC_MAPPED;
974	}	1168	}
975	else	1169	else
976	#endif	1170	#endif
977	{	1171	{
978	cctx->ssize = coro_stacksize * (long)sizeof (long);	1172	cctx->ssize = cctx_stacksize * (long)sizeof (long);
979	New (0, cctx->sptr, coro_stacksize, long);	1173	New (0, cctx->sptr, cctx_stacksize, long);
980		1174
981	if (!cctx->sptr)	1175	if (!cctx->sptr)
982	{	1176	{
983	perror ("FATAL: unable to allocate stack for coroutine");	1177	perror ("FATAL: unable to allocate stack for coroutine");
984	_exit (EXIT_FAILURE);	1178	_exit (EXIT_FAILURE);
…		…
987	stack_start = cctx->sptr;	1181	stack_start = cctx->sptr;
988	stack_size = cctx->ssize;	1182	stack_size = cctx->ssize;
989	}	1183	}
990		1184
991	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1185	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
992	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1186	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
993		1187
994	return cctx;	1188	return cctx;
995	}	1189	}
996		1190
997	static void	1191	static void
…		…
999	{	1193	{
1000	if (!cctx)	1194	if (!cctx)
1001	return;	1195	return;
1002		1196
1003	--cctx_count;	1197	--cctx_count;
		1198	coro_destroy (&cctx->cctx);
1004		1199
		1200	/* coro_transfer creates new, empty cctx's */
		1201	if (cctx->sptr)
		1202	{
1005	#if CORO_USE_VALGRIND	1203	#if CORO_USE_VALGRIND
1006	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1204	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1007	#endif	1205	#endif
1008		1206
1009	#if HAVE_MMAP	1207	#if HAVE_MMAP
1010	if (cctx->flags & CC_MAPPED)	1208	if (cctx->flags & CC_MAPPED)
1011	munmap (cctx->sptr, cctx->ssize);	1209	munmap (cctx->sptr, cctx->ssize);
1012	else	1210	else
1013	#endif	1211	#endif
1014	Safefree (cctx->sptr);	1212	Safefree (cctx->sptr);
		1213	}
1015		1214
1016	Safefree (cctx);	1215	Safefree (cctx);
1017	}	1216	}
1018		1217
1019	/* wether this cctx should be destructed */	1218	/* wether this cctx should be destructed */
1020	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))	1219	#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen \|\| ((cctx)->flags & CC_NOREUSE))
1021		1220
1022	static coro_cctx *	1221	static coro_cctx *
1023	cctx_get (pTHX)	1222	cctx_get (pTHX)
1024	{	1223	{
1025	while (expect_true (cctx_first))	1224	while (expect_true (cctx_first))
…		…
1032	return cctx;	1231	return cctx;
1033		1232
1034	cctx_destroy (cctx);	1233	cctx_destroy (cctx);
1035	}	1234	}
1036		1235
1037	return cctx_new ();	1236	return cctx_new_run ();
1038	}	1237	}
1039		1238
1040	static void	1239	static void
1041	cctx_put (coro_cctx *cctx)	1240	cctx_put (coro_cctx *cctx)
1042	{	1241	{
		1242	assert (("cctx_put called on non-initialised cctx", cctx->sptr));
		1243
1043	/* free another cctx if overlimit */	1244	/* free another cctx if overlimit */
1044	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))	1245	if (expect_false (cctx_idle >= cctx_max_idle))
1045	{	1246	{
1046	coro_cctx *first = cctx_first;	1247	coro_cctx *first = cctx_first;
1047	cctx_first = first->next;	1248	cctx_first = first->next;
1048	--cctx_idle;	1249	--cctx_idle;
1049		1250
…		…
1069	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1270	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1070		1271
1071	if (expect_false (next->flags & CF_DESTROYED))	1272	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");	1273	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1073		1274
1074	if (
1075	#if PERL_VERSION_ATLEAST (5,9,0)	1275	#if !PERL_VERSION_ATLEAST (5,10,0)
1076	expect_false (PL_parser)
1077	#else
1078	expect_false (PL_lex_state != LEX_NOTPARSING)	1276	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1079	#endif
1080	)
1081	croak ("Coro::State::transfer called while parsing, but this is not supported");	1277	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1278	#endif
1082	}	1279	}
1083	}	1280	}
1084		1281
1085	/* always use the TRANSFER macro */	1282	/* always use the TRANSFER macro */
1086	static void NOINLINE	1283	static void NOINLINE
1087	transfer (pTHX_ struct coro prev, struct coro next)	1284	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1088	{	1285	{
1089	dSTACKLEVEL;	1286	dSTACKLEVEL;
1090		1287
1091	/* sometimes transfer is only called to set idle_sp */	1288	/* sometimes transfer is only called to set idle_sp */
1092	if (expect_false (!next))	1289	if (expect_false (!next))
…		…
1098	{	1295	{
1099	coro_cctx *prev__cctx;	1296	coro_cctx *prev__cctx;
1100		1297
1101	if (expect_false (prev->flags & CF_NEW))	1298	if (expect_false (prev->flags & CF_NEW))
1102	{	1299	{
1103	/* create a new empty context */	1300	/* create a new empty/source context */
1104	Newz (0, prev->cctx, 1, coro_cctx);	1301	prev->cctx = cctx_new_empty ();
1105	prev->flags &= ~CF_NEW;	1302	prev->flags &= ~CF_NEW;
1106	prev->flags \|= CF_RUNNING;	1303	prev->flags \|= CF_RUNNING;
1107	}	1304	}
1108		1305
1109	prev->flags &= ~CF_RUNNING;	1306	prev->flags &= ~CF_RUNNING;
1110	next->flags \|= CF_RUNNING;	1307	next->flags \|= CF_RUNNING;
1111		1308
1112	LOCK;	1309	LOCK;
		1310
		1311	/* first get rid of the old state */
		1312	save_perl (aTHX_ prev);
1113		1313
1114	if (expect_false (next->flags & CF_NEW))	1314	if (expect_false (next->flags & CF_NEW))
1115	{	1315	{
1116	/* need to start coroutine */	1316	/* need to start coroutine */
1117	next->flags &= ~CF_NEW;	1317	next->flags &= ~CF_NEW;
1118	/* first get rid of the old state */
1119	save_perl (aTHX_ prev);
1120	/* setup coroutine call */	1318	/* setup coroutine call */
1121	coro_setup (aTHX_ next);	1319	coro_setup (aTHX_ next);
1122	}	1320	}
1123	else	1321	else
1124	{
1125	/* coroutine already started */
1126	save_perl (aTHX_ prev);
1127	load_perl (aTHX_ next);	1322	load_perl (aTHX_ next);
1128	}
1129		1323
1130	prev__cctx = prev->cctx;	1324	prev__cctx = prev->cctx;
1131		1325
		1326	if (prev__cctx->idle_sp == STACKLEVEL) asm volatile("");//D
		1327
1132	/* possibly "free" the cctx */	1328	/* possibly "free" the cctx */
1133	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1329	if (expect_true (
		1330	prev__cctx->idle_sp == STACKLEVEL
		1331	&& !(prev__cctx->flags & CC_TRACE)
		1332	&& !force_cctx
		1333	))
1134	{	1334	{
1135	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1335	/* 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));	1336	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1137		1337
1138	prev->cctx = 0;	1338	prev->cctx = 0;
1139		1339
1140	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1340	/* 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 */	1341	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1142	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1342	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1343	if (!next->cctx)
1143	next->cctx = cctx_get (aTHX);	1344	next->cctx = cctx_get (aTHX);
1144		1345
1145	cctx_put (prev__cctx);	1346	cctx_put (prev__cctx);
1146	}	1347	}
1147		1348
1148	++next->usecount;	1349	++next->usecount;
1149		1350
1150	if (expect_true (!next->cctx))	1351	if (expect_true (!next->cctx))
1151	next->cctx = cctx_get (aTHX);	1352	next->cctx = cctx_get (aTHX);
		1353
		1354	next_has_throw = !!next->throw;
1152		1355
1153	if (expect_false (prev__cctx != next->cctx))	1356	if (expect_false (prev__cctx != next->cctx))
1154	{	1357	{
1155	prev__cctx->top_env = PL_top_env;	1358	prev__cctx->top_env = PL_top_env;
1156	PL_top_env = next->cctx->top_env;	1359	PL_top_env = next->cctx->top_env;
…		…
1158	}	1361	}
1159		1362
1160	free_coro_mortal (aTHX);	1363	free_coro_mortal (aTHX);
1161	UNLOCK;	1364	UNLOCK;
1162		1365
1163	if (expect_false (prev->throw \|\| next->throw))	1366	transfer_tail ();
1164	{
1165	struct coro *coro = SvSTATE (coro_current);
1166
1167	if (coro->throw)
1168	{
1169	SV *exception = coro->throw;
1170	coro->throw = 0;
1171	sv_setsv (ERRSV, exception);
1172	croak (0);
1173	}
1174	}
1175	}	1367	}
1176	}	1368	}
1177		1369
1178	struct transfer_args	1370	struct transfer_args
1179	{	1371	{
1180	struct coro prev, next;	1372	struct coro prev, next;
1181	};	1373	};
1182		1374
1183	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1375	#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)	1376	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1185		1377
1186	/ high level stuff ******************************************************/	1378	/ high level stuff ******************************************************/
1187		1379
1188	static int	1380	static int
…		…
1212	croak ("FATAL: tried to destroy currently running coroutine");	1404	croak ("FATAL: tried to destroy currently running coroutine");
1213		1405
1214	save_perl (aTHX_ &temp);	1406	save_perl (aTHX_ &temp);
1215	load_perl (aTHX_ coro);	1407	load_perl (aTHX_ coro);
1216		1408
1217	coro_destroy (aTHX_ coro);	1409	coro_destruct (aTHX_ coro);
1218		1410
1219	load_perl (aTHX_ &temp);	1411	load_perl (aTHX_ &temp);
1220		1412
1221	coro->slot = 0;	1413	coro->slot = 0;
1222	}	1414	}
…		…
1282	{	1474	{
1283	dTHX;	1475	dTHX;
1284	struct transfer_args ta;	1476	struct transfer_args ta;
1285		1477
1286	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1478	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1287	TRANSFER (ta);	1479	TRANSFER (ta, 1);
1288	}	1480	}
1289		1481
1290	/ Coro ******************************************************************/	1482	/ Coro ******************************************************************/
1291		1483
1292	static void	1484	static void
…		…
1294	{	1486	{
1295	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1487	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1296	}	1488	}
1297		1489
1298	static SV *	1490	static SV *
1299	coro_deq (pTHX_ int min_prio)	1491	coro_deq (pTHX)
1300	{	1492	{
1301	int prio = PRIO_MAX - PRIO_MIN;	1493	int prio;
1302		1494
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; )	1495	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1308	if (AvFILLp (coro_ready [prio]) >= 0)	1496	if (AvFILLp (coro_ready [prio]) >= 0)
1309	return av_shift (coro_ready [prio]);	1497	return av_shift (coro_ready [prio]);
1310		1498
1311	return 0;	1499	return 0;
1312	}	1500	}
…		…
1314	static int	1502	static int
1315	api_ready (SV *coro_sv)	1503	api_ready (SV *coro_sv)
1316	{	1504	{
1317	dTHX;	1505	dTHX;
1318	struct coro *coro;	1506	struct coro *coro;
		1507	SV *sv_hook;
		1508	void (*xs_hook)(void);
1319		1509
1320	if (SvROK (coro_sv))	1510	if (SvROK (coro_sv))
1321	coro_sv = SvRV (coro_sv);	1511	coro_sv = SvRV (coro_sv);
1322		1512
1323	coro = SvSTATE (coro_sv);	1513	coro = SvSTATE (coro_sv);
…		…
1326	return 0;	1516	return 0;
1327		1517
1328	coro->flags \|= CF_READY;	1518	coro->flags \|= CF_READY;
1329		1519
1330	LOCK;	1520	LOCK;
		1521
		1522	sv_hook = coro_nready ? 0 : coro_readyhook;
		1523	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1524
1331	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1525	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1332	++coro_nready;	1526	++coro_nready;
		1527
1333	UNLOCK;	1528	UNLOCK;
		1529
		1530	if (sv_hook)
		1531	{
		1532	dSP;
		1533
		1534	ENTER;
		1535	SAVETMPS;
		1536
		1537	PUSHMARK (SP);
		1538	PUTBACK;
		1539	call_sv (sv_hook, G_DISCARD);
		1540	SPAGAIN;
		1541
		1542	FREETMPS;
		1543	LEAVE;
		1544	}
		1545
		1546	if (xs_hook)
		1547	xs_hook ();
1334		1548
1335	return 1;	1549	return 1;
1336	}	1550	}
1337		1551
1338	static int	1552	static int
…		…
1348	SV prev_sv, next_sv;	1562	SV prev_sv, next_sv;
1349		1563
1350	for (;;)	1564	for (;;)
1351	{	1565	{
1352	LOCK;	1566	LOCK;
1353	next_sv = coro_deq (aTHX_ PRIO_MIN);	1567	next_sv = coro_deq (aTHX);
1354		1568
1355	/* nothing to schedule: call the idle handler */	1569	/* nothing to schedule: call the idle handler */
1356	if (expect_false (!next_sv))	1570	if (expect_false (!next_sv))
1357	{	1571	{
1358	dSP;	1572	dSP;
…		…
1362	SAVETMPS;	1576	SAVETMPS;
1363		1577
1364	PUSHMARK (SP);	1578	PUSHMARK (SP);
1365	PUTBACK;	1579	PUTBACK;
1366	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1580	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1581	SPAGAIN;
1367		1582
1368	FREETMPS;	1583	FREETMPS;
1369	LEAVE;	1584	LEAVE;
1370	continue;	1585	continue;
1371	}	1586	}
…		…
1426	{	1641	{
1427	dTHX;	1642	dTHX;
1428	struct transfer_args ta;	1643	struct transfer_args ta;
1429		1644
1430	prepare_schedule (aTHX_ &ta);	1645	prepare_schedule (aTHX_ &ta);
1431	TRANSFER (ta);	1646	TRANSFER (ta, 1);
1432	}	1647	}
1433		1648
1434	static int	1649	static int
1435	api_cede (void)	1650	api_cede (void)
1436	{	1651	{
…		…
1439		1654
1440	prepare_cede (aTHX_ &ta);	1655	prepare_cede (aTHX_ &ta);
1441		1656
1442	if (expect_true (ta.prev != ta.next))	1657	if (expect_true (ta.prev != ta.next))
1443	{	1658	{
1444	TRANSFER (ta);	1659	TRANSFER (ta, 1);
1445	return 1;	1660	return 1;
1446	}	1661	}
1447	else	1662	else
1448	return 0;	1663	return 0;
1449	}	1664	}
…		…
1454	dTHX;	1669	dTHX;
1455	struct transfer_args ta;	1670	struct transfer_args ta;
1456		1671
1457	if (prepare_cede_notself (aTHX_ &ta))	1672	if (prepare_cede_notself (aTHX_ &ta))
1458	{	1673	{
1459	TRANSFER (ta);	1674	TRANSFER (ta, 1);
1460	return 1;	1675	return 1;
1461	}	1676	}
1462	else	1677	else
1463	return 0;	1678	return 0;
1464	}	1679	}
…		…
1470	struct coro *coro = SvSTATE (coro_sv);	1685	struct coro *coro = SvSTATE (coro_sv);
1471		1686
1472	if (flags & CC_TRACE)	1687	if (flags & CC_TRACE)
1473	{	1688	{
1474	if (!coro->cctx)	1689	if (!coro->cctx)
1475	coro->cctx = cctx_new ();	1690	coro->cctx = cctx_new_run ();
1476	else if (!(coro->cctx->flags & CC_TRACE))	1691	else if (!(coro->cctx->flags & CC_TRACE))
1477	croak ("cannot enable tracing on coroutine with custom stack");	1692	croak ("cannot enable tracing on coroutine with custom stack");
1478		1693
1479	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));	1694	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
1480	}	1695	}
…		…
1487	else	1702	else
1488	coro->slot->runops = RUNOPS_DEFAULT;	1703	coro->slot->runops = RUNOPS_DEFAULT;
1489	}	1704	}
1490	}	1705	}
1491		1706
		1707	#if 0
		1708	static int
		1709	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1710	{
		1711	AV *padlist;
		1712	AV av = (AV )mg->mg_obj;
		1713
		1714	abort ();
		1715
		1716	return 0;
		1717	}
		1718
		1719	static MGVTBL coro_gensub_vtbl = {
		1720	0, 0, 0, 0,
		1721	coro_gensub_free
		1722	};
		1723	#endif
		1724
		1725	/*****************************************************************************/
		1726	/* PerlIO::cede */
		1727
		1728	typedef struct
		1729	{
		1730	PerlIOBuf base;
		1731	NV next, every;
		1732	} PerlIOCede;
		1733
		1734	static IV
		1735	PerlIOCede_pushed (pTHX_ PerlIO f, const char mode, SV arg, PerlIO_funcs tab)
		1736	{
		1737	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1738
		1739	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1740	self->next = nvtime () + self->every;
		1741
		1742	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1743	}
		1744
		1745	static SV *
		1746	PerlIOCede_getarg (pTHX_ PerlIO f, CLONE_PARAMS param, int flags)
		1747	{
		1748	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1749
		1750	return newSVnv (self->every);
		1751	}
		1752
		1753	static IV
		1754	PerlIOCede_flush (pTHX_ PerlIO *f)
		1755	{
		1756	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1757	double now = nvtime ();
		1758
		1759	if (now >= self->next)
		1760	{
		1761	api_cede ();
		1762	self->next = now + self->every;
		1763	}
		1764
		1765	return PerlIOBuf_flush (aTHX_ f);
		1766	}
		1767
		1768	static PerlIO_funcs PerlIO_cede =
		1769	{
		1770	sizeof(PerlIO_funcs),
		1771	"cede",
		1772	sizeof(PerlIOCede),
		1773	PERLIO_K_DESTRUCT \| PERLIO_K_RAW,
		1774	PerlIOCede_pushed,
		1775	PerlIOBuf_popped,
		1776	PerlIOBuf_open,
		1777	PerlIOBase_binmode,
		1778	PerlIOCede_getarg,
		1779	PerlIOBase_fileno,
		1780	PerlIOBuf_dup,
		1781	PerlIOBuf_read,
		1782	PerlIOBuf_unread,
		1783	PerlIOBuf_write,
		1784	PerlIOBuf_seek,
		1785	PerlIOBuf_tell,
		1786	PerlIOBuf_close,
		1787	PerlIOCede_flush,
		1788	PerlIOBuf_fill,
		1789	PerlIOBase_eof,
		1790	PerlIOBase_error,
		1791	PerlIOBase_clearerr,
		1792	PerlIOBase_setlinebuf,
		1793	PerlIOBuf_get_base,
		1794	PerlIOBuf_bufsiz,
		1795	PerlIOBuf_get_ptr,
		1796	PerlIOBuf_get_cnt,
		1797	PerlIOBuf_set_ptrcnt,
		1798	};
		1799
		1800
1492	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1801	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1493		1802
1494	PROTOTYPES: DISABLE	1803	PROTOTYPES: DISABLE
1495		1804
1496	BOOT:	1805	BOOT:
1497	{	1806	{
1498	#ifdef USE_ITHREADS	1807	#ifdef USE_ITHREADS
1499	MUTEX_INIT (&coro_mutex);	1808	MUTEX_INIT (&coro_lock);
		1809	# if CORO_PTHREAD
		1810	coro_thx = PERL_GET_CONTEXT;
		1811	# endif
1500	#endif	1812	#endif
1501	BOOT_PAGESIZE;	1813	BOOT_PAGESIZE;
1502		1814
1503	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1815	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1504	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1816	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1505		1817
		1818	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1819	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1820	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1821
1506	hv_sig = coro_get_hv ("SIG", TRUE);	1822	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1507	sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);	1823	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1508	sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);	1824	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		1825
1513	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1826	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1514		1827
1515	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1828	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1516	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1829	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1521	main_top_env = PL_top_env;	1834	main_top_env = PL_top_env;
1522		1835
1523	while (main_top_env->je_prev)	1836	while (main_top_env->je_prev)
1524	main_top_env = main_top_env->je_prev;	1837	main_top_env = main_top_env->je_prev;
1525		1838
1526	coroapi.ver = CORO_API_VERSION;	1839	coroapi.ver = CORO_API_VERSION;
		1840	coroapi.rev = CORO_API_REVISION;
1527	coroapi.transfer = api_transfer;	1841	coroapi.transfer = api_transfer;
		1842
		1843	{
		1844	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		1845
		1846	if (!svp) croak ("Time::HiRes is required");
		1847	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
		1848
		1849	nvtime = INT2PTR (double ()(), SvIV (svp));
		1850	}
1528		1851
1529	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1852	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1530	}	1853	}
1531		1854
1532	SV *	1855	SV *
1533	new (char *klass, ...)	1856	new (char *klass, ...)
1534	CODE:	1857	CODE:
1535	{	1858	{
1536	struct coro *coro;	1859	struct coro *coro;
		1860	MAGIC *mg;
1537	HV *hv;	1861	HV *hv;
1538	int i;	1862	int i;
1539		1863
1540	Newz (0, coro, 1, struct coro);	1864	Newz (0, coro, 1, struct coro);
1541	coro->args = newAV ();	1865	coro->args = newAV ();
…		…
1544	if (coro_first) coro_first->prev = coro;	1868	if (coro_first) coro_first->prev = coro;
1545	coro->next = coro_first;	1869	coro->next = coro_first;
1546	coro_first = coro;	1870	coro_first = coro;
1547		1871
1548	coro->hv = hv = newHV ();	1872	coro->hv = hv = newHV ();
1549	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1873	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1874	mg->mg_flags \|= MGf_DUP;
1550	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1875	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1551		1876
1552	av_extend (coro->args, items - 1);	1877	av_extend (coro->args, items - 1);
1553	for (i = 1; i < items; i++)	1878	for (i = 1; i < items; i++)
1554	av_push (coro->args, newSVsv (ST (i)));	1879	av_push (coro->args, newSVsv (ST (i)));
…		…
1568	Coro::cede_notself = 4	1893	Coro::cede_notself = 4
1569	CODE:	1894	CODE:
1570	{	1895	{
1571	struct transfer_args ta;	1896	struct transfer_args ta;
1572		1897
		1898	PUTBACK;
1573	switch (ix)	1899	switch (ix)
1574	{	1900	{
1575	case 0:	1901	case 0:
1576	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1902	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1577	ta.next = 0;	1903	ta.next = 0;
1578	break;	1904	break;
1579		1905
1580	case 1:	1906	case 1:
1581	if (items != 2)	1907	if (items != 2)
1582	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1908	croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items);
1583		1909
1584	prepare_transfer (aTHX_ &ta, ST (0), ST (1));	1910	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1585	break;	1911	break;
1586		1912
1587	case 2:	1913	case 2:
…		…
1596	if (!prepare_cede_notself (aTHX_ &ta))	1922	if (!prepare_cede_notself (aTHX_ &ta))
1597	XSRETURN_EMPTY;	1923	XSRETURN_EMPTY;
1598		1924
1599	break;	1925	break;
1600	}	1926	}
		1927	SPAGAIN;
1601		1928
1602	BARRIER;	1929	BARRIER;
		1930	PUTBACK;
1603	TRANSFER (ta);	1931	TRANSFER (ta, 0);
1604		1932	SPAGAIN; /* might be the sp of a different coroutine now */
1605	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1933	/* be extra careful not to ever do anything after TRANSFER */
1606	XSRETURN_YES;
1607	}	1934	}
1608		1935
1609	bool	1936	bool
1610	_destroy (SV *coro_sv)	1937	_destroy (SV *coro_sv)
1611	CODE:	1938	CODE:
1612	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1939	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1613	OUTPUT:	1940	OUTPUT:
1614	RETVAL	1941	RETVAL
1615		1942
1616	void	1943	void
1617	_exit (code)	1944	_exit (int code)
1618	int code
1619	PROTOTYPE: $	1945	PROTOTYPE: $
1620	CODE:	1946	CODE:
1621	_exit (code);	1947	_exit (code);
1622		1948
1623	int	1949	int
1624	cctx_stacksize (int new_stacksize = 0)	1950	cctx_stacksize (int new_stacksize = 0)
1625	CODE:	1951	CODE:
1626	RETVAL = coro_stacksize;	1952	RETVAL = cctx_stacksize;
1627	if (new_stacksize)	1953	if (new_stacksize)
		1954	{
1628	coro_stacksize = new_stacksize;	1955	cctx_stacksize = new_stacksize;
		1956	++cctx_gen;
		1957	}
		1958	OUTPUT:
		1959	RETVAL
		1960
		1961	int
		1962	cctx_max_idle (int max_idle = 0)
		1963	CODE:
		1964	RETVAL = cctx_max_idle;
		1965	if (max_idle > 1)
		1966	cctx_max_idle = max_idle;
1629	OUTPUT:	1967	OUTPUT:
1630	RETVAL	1968	RETVAL
1631		1969
1632	int	1970	int
1633	cctx_count ()	1971	cctx_count ()
…		…
1657	call (Coro::State coro, SV *coderef)	1995	call (Coro::State coro, SV *coderef)
1658	ALIAS:	1996	ALIAS:
1659	eval = 1	1997	eval = 1
1660	CODE:	1998	CODE:
1661	{	1999	{
1662	if (coro->mainstack)	2000	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
1663	{	2001	{
1664	struct coro temp;	2002	struct coro temp;
1665		2003
1666	if (!(coro->flags & CF_RUNNING))	2004	if (!(coro->flags & CF_RUNNING))
1667	{	2005	{
		2006	PUTBACK;
1668	save_perl (aTHX_ &temp);	2007	save_perl (aTHX_ &temp);
1669	load_perl (aTHX_ coro);	2008	load_perl (aTHX_ coro);
1670	}	2009	}
1671		2010
1672	{	2011	{
1673	dSP;	2012	dSP;
1674	ENTER;	2013	ENTER;
1675	SAVETMPS;	2014	SAVETMPS;
		2015	PUTBACK;
		2016	PUSHSTACK;
1676	PUSHMARK (SP);	2017	PUSHMARK (SP);
1677	PUTBACK;
1678		2018
1679	if (ix)	2019	if (ix)
1680	eval_sv (coderef, 0);	2020	eval_sv (coderef, 0);
1681	else	2021	else
1682	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	2022	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1683		2023
		2024	POPSTACK;
1684	SPAGAIN;	2025	SPAGAIN;
1685	FREETMPS;	2026	FREETMPS;
1686	LEAVE;	2027	LEAVE;
1687	PUTBACK;	2028	PUTBACK;
1688	}	2029	}
1689		2030
1690	if (!(coro->flags & CF_RUNNING))	2031	if (!(coro->flags & CF_RUNNING))
1691	{	2032	{
1692	save_perl (aTHX_ coro);	2033	save_perl (aTHX_ coro);
1693	load_perl (aTHX_ &temp);	2034	load_perl (aTHX_ &temp);
		2035	SPAGAIN;
1694	}	2036	}
1695	}	2037	}
1696	}	2038	}
1697		2039
1698	SV *	2040	SV *
…		…
1710		2052
1711	void	2053	void
1712	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	2054	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1713		2055
1714	SV *	2056	SV *
1715	has_stack (Coro::State coro)	2057	has_cctx (Coro::State coro)
1716	PROTOTYPE: $	2058	PROTOTYPE: $
1717	CODE:	2059	CODE:
1718	RETVAL = boolSV (!!coro->cctx);	2060	RETVAL = boolSV (!!coro->cctx);
1719	OUTPUT:	2061	OUTPUT:
1720	RETVAL	2062	RETVAL
…		…
1725	CODE:	2067	CODE:
1726	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;	2068	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1727	OUTPUT:	2069	OUTPUT:
1728	RETVAL	2070	RETVAL
1729		2071
1730	IV	2072	UV
1731	rss (Coro::State coro)	2073	rss (Coro::State coro)
1732	PROTOTYPE: $	2074	PROTOTYPE: $
1733	ALIAS:	2075	ALIAS:
1734	usecount = 1	2076	usecount = 1
1735	CODE:	2077	CODE:
…		…
1739	case 1: RETVAL = coro->usecount; break;	2081	case 1: RETVAL = coro->usecount; break;
1740	}	2082	}
1741	OUTPUT:	2083	OUTPUT:
1742	RETVAL	2084	RETVAL
1743		2085
		2086	void
		2087	force_cctx ()
		2088	CODE:
		2089	struct coro *coro = SvSTATE (coro_current);
		2090	coro->cctx->idle_sp = 0;
		2091
		2092	void
		2093	swap_defsv (Coro::State self)
		2094	PROTOTYPE: $
		2095	ALIAS:
		2096	swap_defav = 1
		2097	CODE:
		2098	if (!self->slot)
		2099	croak ("cannot swap state with coroutine that has no saved state");
		2100	else
		2101	{
		2102	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2103	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		2104
		2105	SV tmp = src; src = dst; *dst = tmp;
		2106	}
1744		2107
1745	MODULE = Coro::State PACKAGE = Coro	2108	MODULE = Coro::State PACKAGE = Coro
1746		2109
1747	BOOT:	2110	BOOT:
1748	{	2111	{
1749	int i;	2112	int i;
1750		2113
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);	2114	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		2115	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		2116	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1754		2117
1755	coro_current = coro_get_sv ("Coro::current", FALSE);	2118	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1756	SvREADONLY_on (coro_current);	2119	SvREADONLY_on (coro_current);
1757		2120
1758	coro_stash = gv_stashpv ("Coro", TRUE);	2121	coro_stash = gv_stashpv ("Coro", TRUE);
1759		2122
1760	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2123	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
1788	void	2151	void
1789	_set_current (SV *current)	2152	_set_current (SV *current)
1790	PROTOTYPE: $	2153	PROTOTYPE: $
1791	CODE:	2154	CODE:
1792	SvREFCNT_dec (SvRV (coro_current));	2155	SvREFCNT_dec (SvRV (coro_current));
1793	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	2156	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2157
		2158	void
		2159	_set_readyhook (SV *hook)
		2160	PROTOTYPE: $
		2161	CODE:
		2162	LOCK;
		2163	SvREFCNT_dec (coro_readyhook);
		2164	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2165	UNLOCK;
1794		2166
1795	int	2167	int
1796	prio (Coro::State coro, int newprio = 0)	2168	prio (Coro::State coro, int newprio = 0)
1797	ALIAS:	2169	ALIAS:
1798	nice = 1	2170	nice = 1
…		…
1843	CODE:	2215	CODE:
1844	{	2216	{
1845	struct coro *coro = SvSTATE (coro_current);	2217	struct coro *coro = SvSTATE (coro_current);
1846	HV hv = (HV )SvRV (coro_current);	2218	HV hv = (HV )SvRV (coro_current);
1847	AV *defav = GvAV (PL_defgv);	2219	AV *defav = GvAV (PL_defgv);
1848	SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);	2220	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1849	AV *invoke_av;	2221	AV *invoke_av;
1850	int i, len;	2222	int i, len;
1851		2223
1852	if (!invoke)	2224	if (!invoke)
		2225	{
		2226	SV *old = PL_diehook;
		2227	PL_diehook = 0;
		2228	SvREFCNT_dec (old);
1853	croak ("\3async_pool terminate\2\n");	2229	croak ("\3async_pool terminate\2\n");
		2230	}
1854		2231
1855	SvREFCNT_dec (coro->saved_deffh);	2232	SvREFCNT_dec (coro->saved_deffh);
1856	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2233	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1857		2234
1858	hv_store (hv, "desc", sizeof ("desc") - 1,	2235	hv_store (hv, "desc", sizeof ("desc") - 1,
1859	newSVpvn (strpair ("[async_pool]")), 0);	2236	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1860		2237
1861	invoke_av = (AV *)SvRV (invoke);	2238	invoke_av = (AV *)SvRV (invoke);
1862	len = av_len (invoke_av);	2239	len = av_len (invoke_av);
1863		2240
1864	sv_setsv (cb, AvARRAY (invoke_av)[0]);	2241	sv_setsv (cb, AvARRAY (invoke_av)[0]);
1865		2242
1866	if (len > 0)	2243	if (len > 0)
1867	{	2244	{
1868	av_fill (defav, len - 1);	2245	av_fill (defav, len - 1);
1869	for (i = 0; i < len; ++i)	2246	for (i = 0; i < len; ++i)
1870	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2247	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1871	}	2248	}
1872		2249
1873	SvREFCNT_dec (invoke);	2250	SvREFCNT_dec (invoke);
1874	}	2251	}
1875		2252
…		…
1882	sv_setsv (cb, &PL_sv_undef);	2259	sv_setsv (cb, &PL_sv_undef);
1883		2260
1884	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2261	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1885	coro->saved_deffh = 0;	2262	coro->saved_deffh = 0;
1886		2263
1887	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2264	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1888	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2265	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2266	{
		2267	SV *old = PL_diehook;
		2268	PL_diehook = 0;
		2269	SvREFCNT_dec (old);
1889	croak ("\3async_pool terminate\2\n");	2270	croak ("\3async_pool terminate\2\n");
		2271	}
1890		2272
1891	av_clear (GvAV (PL_defgv));	2273	av_clear (GvAV (PL_defgv));
1892	hv_store ((HV *)SvRV (coro_current), strpair ("desc"),	2274	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1893	newSVpvn (strpair ("[async_pool idle]")), 0);	2275	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1894		2276
1895	coro->prio = 0;	2277	coro->prio = 0;
1896		2278
1897	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2279	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1898	api_trace (coro_current, 0);	2280	api_trace (coro_current, 0);
1899		2281
1900	av_push (av_async_pool, newSVsv (coro_current));	2282	av_push (av_async_pool, newSVsv (coro_current));
1901	}	2283	}
1902		2284
		2285	#if 0
		2286
		2287	void
		2288	_generator_call (...)
		2289	PROTOTYPE: @
		2290	PPCODE:
		2291	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2292	xxxx
		2293	abort ();
		2294
		2295	SV *
		2296	gensub (SV *sub, ...)
		2297	PROTOTYPE: &;@
		2298	CODE:
		2299	{
		2300	struct coro *coro;
		2301	MAGIC *mg;
		2302	CV *xcv;
		2303	CV ncv = (CV )newSV_type (SVt_PVCV);
		2304	int i;
		2305
		2306	CvGV (ncv) = CvGV (cv);
		2307	CvFILE (ncv) = CvFILE (cv);
		2308
		2309	Newz (0, coro, 1, struct coro);
		2310	coro->args = newAV ();
		2311	coro->flags = CF_NEW;
		2312
		2313	av_extend (coro->args, items - 1);
		2314	for (i = 1; i < items; i++)
		2315	av_push (coro->args, newSVsv (ST (i)));
		2316
		2317	CvISXSUB_on (ncv);
		2318	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2319
		2320	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2321
		2322	CvXSUB (ncv) = CvXSUB (xcv);
		2323	CvANON_on (ncv);
		2324
		2325	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2326	RETVAL = newRV_noinc ((SV *)ncv);
		2327	}
		2328	OUTPUT:
		2329	RETVAL
		2330
		2331	#endif
		2332
1903		2333
1904	MODULE = Coro::State PACKAGE = Coro::AIO	2334	MODULE = Coro::State PACKAGE = Coro::AIO
1905		2335
1906	SV *	2336	void
1907	_get_state ()	2337	_get_state (SV *self)
1908	CODE:	2338	PPCODE:
1909	{	2339	{
1910	struct io_state *data;	2340	AV *defav = GvAV (PL_defgv);
1911		2341	AV *av = newAV ();
		2342	int i;
1912	RETVAL = newSV (sizeof (struct io_state));	2343	SV *data_sv = newSV (sizeof (struct io_state));
1913	data = (struct io_state *)SvPVX (RETVAL);	2344	struct io_state data = (struct io_state )SvPVX (data_sv);
1914	SvCUR_set (RETVAL, sizeof (struct io_state));	2345	SvCUR_set (data_sv, sizeof (struct io_state));
1915	SvPOK_only (RETVAL);	2346	SvPOK_only (data_sv);
1916		2347
1917	data->errorno = errno;	2348	data->errorno = errno;
1918	data->laststype = PL_laststype;	2349	data->laststype = PL_laststype;
1919	data->laststatval = PL_laststatval;	2350	data->laststatval = PL_laststatval;
1920	data->statcache = PL_statcache;	2351	data->statcache = PL_statcache;
		2352
		2353	av_extend (av, AvFILLp (defav) + 1 + 1);
		2354
		2355	for (i = 0; i <= AvFILLp (defav); ++i)
		2356	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2357
		2358	av_push (av, data_sv);
		2359
		2360	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2361
		2362	api_ready (self);
1921	}	2363	}
1922	OUTPUT:
1923	RETVAL
1924		2364
1925	void	2365	void
1926	_set_state (char *data_)	2366	_set_state (SV *state)
1927	PROTOTYPE: $	2367	PROTOTYPE: $
1928	CODE:	2368	PPCODE:
1929	{	2369	{
1930	struct io_state data = (void )data_;	2370	AV av = (AV )SvRV (state);
		2371	struct io_state data = (struct io_state )SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2372	int i;
1931		2373
1932	errno = data->errorno;	2374	errno = data->errorno;
1933	PL_laststype = data->laststype;	2375	PL_laststype = data->laststype;
1934	PL_laststatval = data->laststatval;	2376	PL_laststatval = data->laststatval;
1935	PL_statcache = data->statcache;	2377	PL_statcache = data->statcache;
1936	}
1937		2378
		2379	EXTEND (SP, AvFILLp (av));
		2380	for (i = 0; i < AvFILLp (av); ++i)
		2381	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2382	}
		2383
		2384
		2385	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2386
		2387	BOOT:
		2388	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2389
		2390	SV *
		2391	_schedule (...)
		2392	PROTOTYPE: @
		2393	CODE:
		2394	{
		2395	static int incede;
		2396
		2397	api_cede_notself ();
		2398
		2399	++incede;
		2400	while (coro_nready >= incede && api_cede ())
		2401	;
		2402
		2403	sv_setsv (sv_activity, &PL_sv_undef);
		2404	if (coro_nready >= incede)
		2405	{
		2406	PUSHMARK (SP);
		2407	PUTBACK;
		2408	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2409	SPAGAIN;
		2410	}
		2411
		2412	--incede;
		2413	}
		2414
		2415
		2416	MODULE = Coro::State PACKAGE = PerlIO::cede
		2417
		2418	BOOT:
		2419	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 1.259 by root, Mon Nov 10 00:02:29 2008 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.200 by root, Sun Oct 7 15:08:23 2007 UTC vs.
Revision 1.259 by root, Mon Nov 10 00:02:29 2008 UTC