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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.113 by root, Thu Nov 30 20:54:24 2006 UTC vs.
Revision 1.127 by root, Tue Dec 12 13:56:45 2006 UTC

…		…
4	#include "perl.h"	4	#include "perl.h"
5	#include "XSUB.h"	5	#include "XSUB.h"
6		6
7	#include "patchlevel.h"	7	#include "patchlevel.h"
8		8
9	#if USE_VALGRIND
10	# include <valgrind/valgrind.h>
11	#endif
12
13	#define PERL_VERSION_ATLEAST(a,b,c) \
14	(PERL_REVISION > (a) \
15	\|\| (PERL_REVISION == (a) \
16	&& (PERL_VERSION > (b) \
17	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
18
19	#if !PERL_VERSION_ATLEAST (5,6,0)
20	# ifndef PL_ppaddr
21	# define PL_ppaddr ppaddr
22	# endif
23	# ifndef call_sv
24	# define call_sv perl_call_sv
25	# endif
26	# ifndef get_sv
27	# define get_sv perl_get_sv
28	# endif
29	# ifndef get_cv
30	# define get_cv perl_get_cv
31	# endif
32	# ifndef IS_PADGV
33	# define IS_PADGV(v) 0
34	# endif
35	# ifndef IS_PADCONST
36	# define IS_PADCONST(v) 0
37	# endif
38	#endif
39
40	#include <stdio.h>	9	#include <stdio.h>
41	#include <errno.h>	10	#include <errno.h>
42		11	#include <assert.h>
43	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
44	# undef STACKGUARD
45	#endif
46
47	#ifndef STACKGUARD
48	# define STACKGUARD 0
49	#endif
50		12
51	#ifdef HAVE_MMAP	13	#ifdef HAVE_MMAP
52	# include <unistd.h>	14	# include <unistd.h>
53	# include <sys/mman.h>	15	# include <sys/mman.h>
54	# ifndef MAP_ANONYMOUS	16	# ifndef MAP_ANONYMOUS
…		…
69	#else	31	#else
70	# define PAGESIZE 0	32	# define PAGESIZE 0
71	# define BOOT_PAGESIZE (void)0	33	# define BOOT_PAGESIZE (void)0
72	#endif	34	#endif
73		35
		36	#if USE_VALGRIND
		37	# include <valgrind/valgrind.h>
		38	#endif
		39
		40	/* the maximum number of idle cctx that will be pooled */
		41	#define MAX_IDLE_CCTX 8
		42
		43	#define PERL_VERSION_ATLEAST(a,b,c) \
		44	(PERL_REVISION > (a) \
		45	\|\| (PERL_REVISION == (a) \
		46	&& (PERL_VERSION > (b) \
		47	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
		48
		49	#if !PERL_VERSION_ATLEAST (5,6,0)
		50	# ifndef PL_ppaddr
		51	# define PL_ppaddr ppaddr
		52	# endif
		53	# ifndef call_sv
		54	# define call_sv perl_call_sv
		55	# endif
		56	# ifndef get_sv
		57	# define get_sv perl_get_sv
		58	# endif
		59	# ifndef get_cv
		60	# define get_cv perl_get_cv
		61	# endif
		62	# ifndef IS_PADGV
		63	# define IS_PADGV(v) 0
		64	# endif
		65	# ifndef IS_PADCONST
		66	# define IS_PADCONST(v) 0
		67	# endif
		68	#endif
		69
		70	/* 5.8.7 */
		71	#ifndef SvRV_set
		72	# define SvRV_set(s,v) SvRV(s) = (v)
		73	#endif
		74
		75	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
		76	# undef STACKGUARD
		77	#endif
		78
		79	#ifndef STACKGUARD
		80	# define STACKGUARD 0
		81	#endif
		82
		83	/* prefer perl internal functions over our own? */
		84	#ifndef PREFER_PERL_FUNCTIONS
		85	# define PREFER_PERL_FUNCTIONS 0
		86	#endif
		87
74	/* The next macro should declare a variable stacklevel that contains and approximation	88	/* The next macro should declare a variable stacklevel that contains and approximation
75	* to the current C stack pointer. Its property is that it changes with each call	89	* to the current C stack pointer. Its property is that it changes with each call
76	* and should be unique. */	90	* and should be unique. */
77	#define dSTACKLEVEL int stacklevel	91	#define dSTACKLEVEL int stacklevel
78	#define STACKLEVEL ((void *)&stacklevel)	92	#define STACKLEVEL ((void *)&stacklevel)
…		…
86	#endif	100	#endif
87		101
88	#define NOINLINE attribute ((noinline))	102	#define NOINLINE attribute ((noinline))
89		103
90	#include "CoroAPI.h"	104	#include "CoroAPI.h"
91
92	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
93		105
94	#ifdef USE_ITHREADS	106	#ifdef USE_ITHREADS
95	static perl_mutex coro_mutex;	107	static perl_mutex coro_mutex;
96	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	108	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
97	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	109	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
98	#else	110	#else
99	# define LOCK (void)0	111	# define LOCK (void)0
100	# define UNLOCK (void)0	112	# define UNLOCK (void)0
101	#endif	113	#endif
102		114
		115	struct io_state
		116	{
		117	int errorno;
		118	I32 laststype;
		119	int laststatval;
		120	Stat_t statcache;
		121	};
		122
103	static struct CoroAPI coroapi;	123	static struct CoroAPI coroapi;
104	static AV main_mainstack; / used to differentiate between $main and others */	124	static AV main_mainstack; / used to differentiate between $main and others */
105	static HV coro_state_stash, coro_stash;	125	static HV coro_state_stash, coro_stash;
106	static SV coro_mortal; / will be freed after next transfer */	126	static SV coro_mortal; / will be freed after next transfer */
107		127
…		…
127	int valgrind_id;	147	int valgrind_id;
128	#endif	148	#endif
129	} coro_cctx;	149	} coro_cctx;
130		150
131	enum {	151	enum {
132	CF_RUNNING, /* coroutine is running */	152	CF_RUNNING = 0x0001, /* coroutine is running */
133	CF_READY, /* coroutine is ready */	153	CF_READY = 0x0002, /* coroutine is ready */
		154	CF_NEW = 0x0004, /* ahs never been switched to */
134	};	155	};
135		156
136	/* this is a structure representing a perl-level coroutine */	157	/* this is a structure representing a perl-level coroutine */
137	struct coro {	158	struct coro {
138	/* the c coroutine allocated to this perl coroutine, if any */	159	/* the c coroutine allocated to this perl coroutine, if any */
139	coro_cctx *cctx;	160	coro_cctx *cctx;
140		161
141	/* data associated with this coroutine (initial args) */	162	/* data associated with this coroutine (initial args) */
142	AV *args;	163	AV *args;
143	int refcnt;	164	int refcnt;
144	int flags;	165	int save; /* CORO_SAVE flags */
		166	int flags; /* CF_ flags */
145		167
146	/* optionally saved, might be zero */	168	/* optionally saved, might be zero */
147	AV *defav;	169	AV defav; / @_ */
148	SV *defsv;	170	SV defsv; / $_ */
149	SV *errsv;	171	SV errsv; / $@ */
		172	SV irssv; / $/ */
		173	SV irssv_sv; / real $/ cache */
150		174
151	#define VAR(name,type) type name;	175	#define VAR(name,type) type name;
152	# include "state.h"	176	# include "state.h"
153	#undef VAR	177	#undef VAR
154		178
…		…
240		264
241	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	265	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
242	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	266	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
243	else	267	else
244	{	268	{
245	#if 0	269	#if PREFER_PERL_FUNCTIONS
246	/* this is probably cleaner, but also slower? */	270	/* this is probably cleaner, but also slower? */
247	CV *cp = Perl_cv_clone (cv);	271	CV *cp = Perl_cv_clone (cv);
248	CvPADLIST (cv) = CvPADLIST (cp);	272	CvPADLIST (cv) = CvPADLIST (cp);
249	CvPADLIST (cp) = 0;	273	CvPADLIST (cp) = 0;
250	SvREFCNT_dec (cp);	274	SvREFCNT_dec (cp);
…		…
277	}	301	}
278		302
279	#define SB do {	303	#define SB do {
280	#define SE } while (0)	304	#define SE } while (0)
281		305
282	#define LOAD(state) load_state((state));
283	#define SAVE(state,flags) save_state((state),(flags));
284
285	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	306	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
286		307
287	static void	308	static void
288	load_state(Coro__State c)	309	load_perl (Coro__State c)
289	{	310	{
290	#define VAR(name,type) PL_ ## name = c->name;	311	#define VAR(name,type) PL_ ## name = c->name;
291	# include "state.h"	312	# include "state.h"
292	#undef VAR	313	#undef VAR
293		314
294	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	315	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
295	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	316	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
296	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	317	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		318	if (c->irssv)
		319	{
		320	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		321	SvREFCNT_dec (c->irssv);
		322	else
		323	{
		324	REPLACE_SV (PL_rs, c->irssv);
		325	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
		326	sv_setsv (c->irssv_sv, PL_rs);
		327	}
		328	}
297		329
298	{	330	{
299	dSP;	331	dSP;
300	CV *cv;	332	CV *cv;
301		333
…		…
310	PUTBACK;	342	PUTBACK;
311	}	343	}
312	}	344	}
313		345
314	static void	346	static void
315	save_state(Coro__State c, int flags)	347	save_perl (Coro__State c)
316	{	348	{
317	{	349	{
318	dSP;	350	dSP;
319	I32 cxix = cxstack_ix;	351	I32 cxix = cxstack_ix;
320	PERL_CONTEXT *ccstk = cxstack;	352	PERL_CONTEXT *ccstk = cxstack;
…		…
323	/*	355	/*
324	* the worst thing you can imagine happens first - we have to save	356	* the worst thing you can imagine happens first - we have to save
325	* (and reinitialize) all cv's in the whole callchain :(	357	* (and reinitialize) all cv's in the whole callchain :(
326	*/	358	*/
327		359
		360	EXTEND (SP, 3 + 1);
328	PUSHs (Nullsv);	361	PUSHs (Nullsv);
329	/* this loop was inspired by pp_caller */	362	/* this loop was inspired by pp_caller */
330	for (;;)	363	for (;;)
331	{	364	{
332	while (cxix >= 0)	365	while (cxix >= 0)
333	{	366	{
334	PERL_CONTEXT *cx = &ccstk[cxix--];	367	PERL_CONTEXT *cx = &ccstk[cxix--];
335		368
336	if (CxTYPE(cx) == CXt_SUB)	369	if (CxTYPE (cx) == CXt_SUB)
337	{	370	{
338	CV *cv = cx->blk_sub.cv;	371	CV *cv = cx->blk_sub.cv;
339		372
340	if (CvDEPTH (cv))	373	if (CvDEPTH (cv))
341	{	374	{
342	EXTEND (SP, 3);	375	EXTEND (SP, 3);
343
344	PUSHs ((SV *)CvPADLIST(cv));	376	PUSHs ((SV *)CvPADLIST (cv));
345	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	377	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
346	PUSHs ((SV *)cv);	378	PUSHs ((SV *)cv);
347		379
348	CvDEPTH (cv) = 0;	380	CvDEPTH (cv) = 0;
349	get_padlist (cv);	381	get_padlist (cv);
350	}	382	}
351	}	383	}
352	#ifdef CXt_FORMAT
353	else if (CxTYPE(cx) == CXt_FORMAT)
354	{
355	/* I never used formats, so how should I know how these are implemented? */
356	/* my bold guess is as a simple, plain sub... */
357	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
358	}
359	#endif
360	}	384	}
361		385
362	if (top_si->si_type == PERLSI_MAIN)	386	if (top_si->si_type == PERLSI_MAIN)
363	break;	387	break;
364		388
…		…
368	}	392	}
369		393
370	PUTBACK;	394	PUTBACK;
371	}	395	}
372		396
373	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	397	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
374	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	398	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
375	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	399	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		400	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
376		401
377	#define VAR(name,type)c->name = PL_ ## name;	402	#define VAR(name,type)c->name = PL_ ## name;
378	# include "state.h"	403	# include "state.h"
379	#undef VAR	404	#undef VAR
380	}	405	}
…		…
383	* allocate various perl stacks. This is an exact copy	408	* allocate various perl stacks. This is an exact copy
384	* of perl.c:init_stacks, except that it uses less memory	409	* of perl.c:init_stacks, except that it uses less memory
385	* on the (sometimes correct) assumption that coroutines do	410	* on the (sometimes correct) assumption that coroutines do
386	* not usually need a lot of stackspace.	411	* not usually need a lot of stackspace.
387	*/	412	*/
		413	#if PREFER_PERL_FUNCTIONS
		414	# define coro_init_stacks init_stacks
		415	#else
388	static void	416	static void
389	coro_init_stacks ()	417	coro_init_stacks ()
390	{	418	{
391	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	419	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
392	PL_curstackinfo->si_type = PERLSI_MAIN;	420	PL_curstackinfo->si_type = PERLSI_MAIN;
393	PL_curstack = PL_curstackinfo->si_stack;	421	PL_curstack = PL_curstackinfo->si_stack;
394	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	422	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
395		423
396	PL_stack_base = AvARRAY(PL_curstack);	424	PL_stack_base = AvARRAY(PL_curstack);
397	PL_stack_sp = PL_stack_base;	425	PL_stack_sp = PL_stack_base;
398	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	426	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
399		427
400	New(50,PL_tmps_stack,96,SV*);	428	New(50,PL_tmps_stack,128,SV*);
401	PL_tmps_floor = -1;	429	PL_tmps_floor = -1;
402	PL_tmps_ix = -1;	430	PL_tmps_ix = -1;
403	PL_tmps_max = 96;	431	PL_tmps_max = 128;
404		432
405	New(54,PL_markstack,16,I32);	433	New(54,PL_markstack,32,I32);
406	PL_markstack_ptr = PL_markstack;	434	PL_markstack_ptr = PL_markstack;
407	PL_markstack_max = PL_markstack + 16;	435	PL_markstack_max = PL_markstack + 32;
408		436
409	#ifdef SET_MARK_OFFSET	437	#ifdef SET_MARK_OFFSET
410	SET_MARK_OFFSET;	438	SET_MARK_OFFSET;
411	#endif	439	#endif
412		440
413	New(54,PL_scopestack,16,I32);	441	New(54,PL_scopestack,32,I32);
414	PL_scopestack_ix = 0;	442	PL_scopestack_ix = 0;
415	PL_scopestack_max = 16;	443	PL_scopestack_max = 32;
416		444
417	New(54,PL_savestack,96,ANY);	445	New(54,PL_savestack,64,ANY);
418	PL_savestack_ix = 0;	446	PL_savestack_ix = 0;
419	PL_savestack_max = 96;	447	PL_savestack_max = 64;
420		448
421	#if !PERL_VERSION_ATLEAST (5,9,0)	449	#if !PERL_VERSION_ATLEAST (5,9,0)
422	New(54,PL_retstack,8,OP*);	450	New(54,PL_retstack,16,OP*);
423	PL_retstack_ix = 0;	451	PL_retstack_ix = 0;
424	PL_retstack_max = 8;	452	PL_retstack_max = 16;
425	#endif	453	#endif
426	}	454	}
		455	#endif
427		456
428	/*	457	/*
429	* destroy the stacks, the callchain etc...	458	* destroy the stacks, the callchain etc...
430	*/	459	*/
431	static void	460	static void
432	coro_destroy_stacks ()	461	coro_destroy_stacks ()
433	{	462	{
434	if (!IN_DESTRUCT)	463	if (!IN_DESTRUCT)
435	{	464	{
436	/* is this ugly, I ask? */	465	/* restore all saved variables and stuff */
437	LEAVE_SCOPE (0);	466	LEAVE_SCOPE (0);
		467	assert (PL_tmps_floor == -1);
438		468
439	/* sure it is, but more important: is it correct?? :/ */	469	/* free all temporaries */
440	FREETMPS;	470	FREETMPS;
		471	assert (PL_tmps_ix == -1);
441		472
442	/POPSTACK_TO (PL_mainstack);//D//use/	473	POPSTACK_TO (PL_mainstack);
443	}	474	}
444		475
445	while (PL_curstackinfo->si_next)	476	while (PL_curstackinfo->si_next)
446	PL_curstackinfo = PL_curstackinfo->si_next;	477	PL_curstackinfo = PL_curstackinfo->si_next;
447		478
448	while (PL_curstackinfo)	479	while (PL_curstackinfo)
449	{	480	{
450	PERL_SI *p = PL_curstackinfo->si_prev;	481	PERL_SI *p = PL_curstackinfo->si_prev;
451		482
452	{ /D//remove/
453	dSP;
454	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
455	PUTBACK; /* possibly superfluous */
456	}
457
458	if (!IN_DESTRUCT)	483	if (!IN_DESTRUCT)
459	{
460	dounwind (-1);/D//remove/
461	SvREFCNT_dec (PL_curstackinfo->si_stack);	484	SvREFCNT_dec (PL_curstackinfo->si_stack);
462	}
463		485
464	Safefree (PL_curstackinfo->si_cxstack);	486	Safefree (PL_curstackinfo->si_cxstack);
465	Safefree (PL_curstackinfo);	487	Safefree (PL_curstackinfo);
466	PL_curstackinfo = p;	488	PL_curstackinfo = p;
467	}	489	}
…		…
482	* emulate part of the perl startup here.	504	* emulate part of the perl startup here.
483	*/	505	*/
484		506
485	coro_init_stacks ();	507	coro_init_stacks ();
486		508
487	PL_curcop = 0;	509	PL_curcop = &PL_compiling;
488	PL_in_eval = 0;	510	PL_in_eval = EVAL_NULL;
489	PL_curpm = 0;	511	PL_curpm = 0;
		512	PL_localizing = 0;
		513	PL_dirty = 0;
		514	PL_restartop = 0;
490		515
491	{	516	{
492	dSP;	517	dSP;
493	LOGOP myop;	518	LOGOP myop;
494		519
495	/* I have no idea why this is needed, but it is */
496	PUSHMARK (SP);
497
498	SvREFCNT_dec (GvAV (PL_defgv));	520	SvREFCNT_dec (GvAV (PL_defgv));
499	GvAV (PL_defgv) = coro->args; coro->args = 0;	521	GvAV (PL_defgv) = coro->args; coro->args = 0;
500		522
501	Zero (&myop, 1, LOGOP);	523	Zero (&myop, 1, LOGOP);
502	myop.op_next = Nullop;	524	myop.op_next = Nullop;
503	myop.op_flags = OPf_WANT_VOID;	525	myop.op_flags = OPf_WANT_VOID;
504		526
505	PL_op = (OP *)&myop;
506
507	PUSHMARK (SP);	527	PUSHMARK (SP);
508	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	528	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
509	PUTBACK;	529	PUTBACK;
		530	PL_op = (OP *)&myop;
510	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	531	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
511	SPAGAIN;	532	SPAGAIN;
512
513	ENTER; /* necessary e.g. for dounwind */
514	}	533	}
		534
		535	ENTER; /* necessary e.g. for dounwind */
515	}	536	}
516		537
517	static void	538	static void
518	free_coro_mortal ()	539	free_coro_mortal ()
519	{	540	{
…		…
522	SvREFCNT_dec (coro_mortal);	543	SvREFCNT_dec (coro_mortal);
523	coro_mortal = 0;	544	coro_mortal = 0;
524	}	545	}
525	}	546	}
526		547
		548	/* inject a fake call to Coro::State::_cctx_init into the execution */
527	static void NOINLINE	549	static void NOINLINE
528	prepare_cctx (coro_cctx *cctx)	550	prepare_cctx (coro_cctx *cctx)
529	{	551	{
530	dSP;	552	dSP;
531	LOGOP myop;	553	LOGOP myop;
532		554
533	Zero (&myop, 1, LOGOP);	555	Zero (&myop, 1, LOGOP);
534	myop.op_next = PL_op;	556	myop.op_next = PL_op;
535	myop.op_flags = OPf_WANT_VOID;	557	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
536
537	sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx));
538		558
539	PUSHMARK (SP);	559	PUSHMARK (SP);
		560	EXTEND (SP, 2);
		561	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));
540	XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	562	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
541	PUTBACK;	563	PUTBACK;
		564	PL_op = (OP *)&myop;
542	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);	565	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
543	SPAGAIN;	566	SPAGAIN;
544	}	567	}
545		568
546	static void	569	static void
547	coro_run (void *arg)	570	coro_run (void *arg)
548	{	571	{
549	/* coro_run is the alternative epilogue of transfer() */	572	/* coro_run is the alternative tail of transfer(), so unlock here. */
550	UNLOCK;	573	UNLOCK;
551		574
552	/*	575	/*
553	* this is a _very_ stripped down perl interpreter ;)	576	* this is a _very_ stripped down perl interpreter ;)
554	*/	577	*/
…		…
556		579
557	/* inject call to cctx_init */	580	/* inject call to cctx_init */
558	prepare_cctx ((coro_cctx *)arg);	581	prepare_cctx ((coro_cctx *)arg);
559		582
560	/* somebody will hit me for both perl_run and PL_restartop */	583	/* somebody will hit me for both perl_run and PL_restartop */
		584	PL_restartop = PL_op;
561	perl_run (PL_curinterp);	585	perl_run (PL_curinterp);
562		586
563	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	587	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
564	abort ();	588	abort ();
565	}	589	}
…		…
569	{	593	{
570	coro_cctx *cctx;	594	coro_cctx *cctx;
571		595
572	++cctx_count;	596	++cctx_count;
573		597
574	New (0, cctx, 1, coro_cctx);	598	Newz (0, cctx, 1, coro_cctx);
575		599
576	#if HAVE_MMAP	600	#if HAVE_MMAP
577		601
578	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	602	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
579	/* mmap suppsedly does allocate-on-write for us */	603	/* mmap supposedly does allocate-on-write for us */
580	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	604	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
581		605
582	if (cctx->sptr == (void *)-1)	606	if (cctx->sptr == (void *)-1)
583	{	607	{
584	perror ("FATAL: unable to mmap stack for coroutine");	608	perror ("FATAL: unable to mmap stack for coroutine");
…		…
613		637
614	return cctx;	638	return cctx;
615	}	639	}
616		640
617	static void	641	static void
618	cctx_free (coro_cctx *cctx)	642	cctx_destroy (coro_cctx *cctx)
619	{	643	{
620	if (!cctx)	644	if (!cctx)
621	return;	645	return;
622		646
623	--cctx_count;	647	--cctx_count;
…		…
640	{	664	{
641	coro_cctx *cctx;	665	coro_cctx *cctx;
642		666
643	if (cctx_first)	667	if (cctx_first)
644	{	668	{
645	--cctx_idle;
646	cctx = cctx_first;	669	cctx = cctx_first;
647	cctx_first = cctx->next;	670	cctx_first = cctx->next;
		671	--cctx_idle;
648	}	672	}
649	else	673	else
650	{	674	{
651	cctx = cctx_new ();	675	cctx = cctx_new ();
652	PL_op = PL_op->op_next;	676	PL_op = PL_op->op_next;
…		…
656	}	680	}
657		681
658	static void	682	static void
659	cctx_put (coro_cctx *cctx)	683	cctx_put (coro_cctx *cctx)
660	{	684	{
		685	/* free another cctx if overlimit */
		686	if (cctx_idle >= MAX_IDLE_CCTX)
		687	{
		688	coro_cctx *first = cctx_first;
		689	cctx_first = first->next;
		690	--cctx_idle;
		691
		692	assert (!first->inuse);
		693	cctx_destroy (first);
		694	}
		695
661	++cctx_idle;	696	++cctx_idle;
662	cctx->next = cctx_first;	697	cctx->next = cctx_first;
663	cctx_first = cctx;	698	cctx_first = cctx;
664	}	699	}
665		700
666	/* never call directly, always through the coro_state_transfer global variable */	701	/* never call directly, always through the coro_state_transfer global variable */
667	static void NOINLINE	702	static void NOINLINE
668	transfer (struct coro prev, struct coro next, int flags)	703	transfer (struct coro prev, struct coro next)
669	{	704	{
670	dSTACKLEVEL;	705	dSTACKLEVEL;
671		706
672	/* sometimes transfer is only called to set idle_sp */	707	/* sometimes transfer is only called to set idle_sp */
673	if (flags == TRANSFER_SET_STACKLEVEL)	708	if (!next)
		709	{
674	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	710	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
		711	assert (((coro_cctx )prev)->top_env = PL_top_env); / just for the side effetc when assert is enabled */
		712	}
675	else if (prev != next)	713	else if (prev != next)
676	{	714	{
677	coro_cctx *prev__cctx;	715	coro_cctx *prev__cctx;
678		716
679	if (!prev->cctx)	717	if (prev->flags & CF_NEW)
680	{	718	{
681	/* create a new empty context */	719	/* create a new empty context */
682	Newz (0, prev->cctx, 1, coro_cctx);	720	Newz (0, prev->cctx, 1, coro_cctx);
683	prev->cctx->inuse = 1;	721	prev->cctx->inuse = 1;
		722	prev->flags &= ~CF_NEW;
684	prev->flags \|= CF_RUNNING;	723	prev->flags \|= CF_RUNNING;
685	}	724	}
686		725
		726	/TODO: must not croak here /
687	if (!prev->flags & CF_RUNNING)	727	if (!prev->flags & CF_RUNNING)
688	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");	728	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
689		729
690	if (next->flags & CF_RUNNING)	730	if (next->flags & CF_RUNNING)
691	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	731	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
…		…
693	prev->flags &= ~CF_RUNNING;	733	prev->flags &= ~CF_RUNNING;
694	next->flags \|= CF_RUNNING;	734	next->flags \|= CF_RUNNING;
695		735
696	LOCK;	736	LOCK;
697		737
698	if (next->mainstack)	738	if (next->flags & CF_NEW)
699	{	739	{
700	/* coroutine already started */	740	/* need to start coroutine */
701	SAVE (prev, flags);	741	next->flags &= ~CF_NEW;
702	LOAD (next);	742	/* first get rid of the old state */
		743	save_perl (prev);
		744	/* setup coroutine call */
		745	setup_coro (next);
		746	/* need a new stack */
		747	assert (!next->cctx);
703	}	748	}
704	else	749	else
705	{	750	{
706	/* need to start coroutine */	751	/* coroutine already started */
707	/* first get rid of the old state */	752	save_perl (prev);
708	SAVE (prev, -1);	753	load_perl (next);
709	/* setup coroutine call */
710	setup_coro (next);
711	/* need a new stack */
712	assert (!next->stack);
713	}	754	}
714		755
715	prev__cctx = prev->cctx;	756	prev__cctx = prev->cctx;
716		757
717	/* possibly "free" the cctx */	758	/* possibly "free" the cctx */
718	if (prev__cctx->idle_sp == STACKLEVEL)	759	if (prev__cctx->idle_sp == STACKLEVEL)
719	{	760	{
		761	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
720	assert (PL_top_env == prev__cctx->top_env);	762	assert (PL_top_env == prev__cctx->top_env);
721		763
		764	prev->cctx = 0;
		765
722	cctx_put (prev__cctx);	766	cctx_put (prev__cctx);
723	prev->cctx = 0;	767	prev__cctx->inuse = 0;
724	}	768	}
725	else if (prev__cctx->idle_sp) //D
726	fprintf (stderr, "coro %p has own stack %p-%p\n", prev__cctx, prev__cctx->idle_sp, STACKLEVEL);//D
727		769
728	if (!next->cctx)	770	if (!next->cctx)
		771	{
729	next->cctx = cctx_get ();	772	next->cctx = cctx_get ();
		773	assert (!next->cctx->inuse);
		774	next->cctx->inuse = 1;
		775	}
730		776
731	if (prev__cctx != next->cctx)	777	if (prev__cctx != next->cctx)
732	{	778	{
733	assert ( prev__cctx->inuse);
734	assert (!next->cctx->inuse);
735
736	prev__cctx->inuse = 0;
737	next->cctx->inuse = 1;
738
739	prev__cctx->top_env = PL_top_env;	779	prev__cctx->top_env = PL_top_env;
740	PL_top_env = next->cctx->top_env;	780	PL_top_env = next->cctx->top_env;
741	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	781	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
742	}	782	}
743		783
…		…
748	}	788	}
749		789
750	struct transfer_args	790	struct transfer_args
751	{	791	{
752	struct coro prev, next;	792	struct coro prev, next;
753	int flags;
754	};	793	};
755		794
756	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)	795	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
757		796
758	static void	797	static void
759	coro_state_destroy (struct coro *coro)	798	coro_state_destroy (struct coro *coro)
760	{	799	{
761	if (coro->refcnt--)	800	if (coro->refcnt--)
762	return;	801	return;
763		802
764	if (coro->flags & CF_RUNNING)
765	croak ("FATAL: tried to destroy currently running coroutine");
766
767	if (coro->mainstack && coro->mainstack != main_mainstack)	803	if (coro->mainstack && coro->mainstack != main_mainstack)
768	{	804	{
769	struct coro temp;	805	struct coro temp;
		806	Zero (&temp, 1, struct coro);
		807	temp.save = CORO_SAVE_ALL;
770		808
771	SAVE ((&temp), TRANSFER_SAVE_ALL);	809	if (coro->flags & CF_RUNNING)
772	LOAD (coro);	810	croak ("FATAL: tried to destroy currently running coroutine");
		811
		812	save_perl (&temp);
		813	load_perl (coro);
773		814
774	coro_destroy_stacks ();	815	coro_destroy_stacks ();
775		816
776	LOAD ((&temp)); /* this will get rid of defsv etc.. */	817	load_perl (&temp); /* this will get rid of defsv etc.. */
777		818
778	coro->mainstack = 0;	819	coro->mainstack = 0;
779	}	820	}
780		821
781	cctx_free (coro->cctx);	822	cctx_destroy (coro->cctx);
782	SvREFCNT_dec (coro->args);	823	SvREFCNT_dec (coro->args);
783	Safefree (coro);	824	Safefree (coro);
784	}	825	}
785		826
786	static int	827	static int
…		…
836	assert (mg->mg_type == PERL_MAGIC_ext);	877	assert (mg->mg_type == PERL_MAGIC_ext);
837	return (struct coro *)mg->mg_ptr;	878	return (struct coro *)mg->mg_ptr;
838	}	879	}
839		880
840	static void	881	static void
841	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)	882	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)
842	{	883	{
843	ta->prev = SvSTATE (prev);	884	ta->prev = SvSTATE (prev_sv);
844	ta->next = SvSTATE (next);	885	ta->next = SvSTATE (next_sv);
845	ta->flags = flags;
846	}	886	}
847		887
848	static void	888	static void
849	api_transfer (SV prev, SV next, int flags)	889	api_transfer (SV prev_sv, SV next_sv)
850	{	890	{
851	dTHX;
852	struct transfer_args ta;	891	struct transfer_args ta;
853		892
854	prepare_transfer (&ta, prev, next, flags);	893	prepare_transfer (&ta, prev_sv, next_sv);
855	TRANSFER (ta);	894	TRANSFER (ta);
		895	}
		896
		897	static int
		898	api_save (SV *coro_sv, int new_save)
		899	{
		900	struct coro *coro = SvSTATE (coro_sv);
		901	int old_save = coro->save;
		902
		903	if (new_save >= 0)
		904	coro->save = new_save;
		905
		906	return old_save;
856	}	907	}
857		908
858	/ Coro ******************************************************************/	909	/ Coro ******************************************************************/
859		910
860	#define PRIO_MAX 3	911	#define PRIO_MAX 3
…		…
863	#define PRIO_LOW -1	914	#define PRIO_LOW -1
864	#define PRIO_IDLE -3	915	#define PRIO_IDLE -3
865	#define PRIO_MIN -4	916	#define PRIO_MIN -4
866		917
867	/* for Coro.pm */	918	/* for Coro.pm */
868	static GV coro_current, coro_idle;	919	static SV *coro_current;
869	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	920	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
870	static int coro_nready;	921	static int coro_nready;
871		922
872	static void	923	static void
873	coro_enq (SV *coro_sv)	924	coro_enq (SV *coro_sv)
…		…
906	coro = SvSTATE (coro_sv);	957	coro = SvSTATE (coro_sv);
907		958
908	if (coro->flags & CF_READY)	959	if (coro->flags & CF_READY)
909	return 0;	960	return 0;
910		961
		962	#if 0 /* this is actually harmless */
911	if (coro->flags & CF_RUNNING)	963	if (coro->flags & CF_RUNNING)
912	croak ("Coro::ready called on currently running coroutine");	964	croak ("Coro::ready called on currently running coroutine");
		965	#endif
913		966
914	coro->flags \|= CF_READY;	967	coro->flags \|= CF_READY;
915		968
916	LOCK;	969	LOCK;
917	coro_enq (SvREFCNT_inc (coro_sv));	970	coro_enq (SvREFCNT_inc (coro_sv));
…		…
927	}	980	}
928		981
929	static void	982	static void
930	prepare_schedule (struct transfer_args *ta)	983	prepare_schedule (struct transfer_args *ta)
931	{	984	{
932	SV current, prev, *next;	985	SV prev, next;
933
934	current = GvSV (coro_current);
935		986
936	for (;;)	987	for (;;)
937	{	988	{
938	LOCK;	989	LOCK;
939	next = coro_deq (PRIO_MIN);	990	next = coro_deq (PRIO_MIN);
…		…
948	ENTER;	999	ENTER;
949	SAVETMPS;	1000	SAVETMPS;
950		1001
951	PUSHMARK (SP);	1002	PUSHMARK (SP);
952	PUTBACK;	1003	PUTBACK;
953	call_sv (GvSV (coro_idle), G_DISCARD);	1004	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
954		1005
955	FREETMPS;	1006	FREETMPS;
956	LEAVE;	1007	LEAVE;
957	}	1008	}
958	}	1009	}
959		1010
960	prev = SvRV (current);	1011	prev = SvRV (coro_current);
961	SvRV (current) = next;	1012	SvRV_set (coro_current, next);
962		1013
963	/* free this only after the transfer */	1014	/* free this only after the transfer */
964	LOCK;	1015	LOCK;
965	free_coro_mortal ();	1016	free_coro_mortal ();
966	UNLOCK;	1017	UNLOCK;
967	coro_mortal = prev;	1018	coro_mortal = prev;
968		1019
		1020	assert (!SvROK(prev));//D
		1021	assert (!SvROK(next));//D
		1022
969	ta->prev = SvSTATE (prev);	1023	ta->prev = SvSTATE (prev);
970	ta->next = SvSTATE (next);	1024	ta->next = SvSTATE (next);
971	ta->flags = TRANSFER_SAVE_ALL;
972		1025
		1026	assert (ta->next->flags & CF_READY);
973	ta->next->flags &= ~CF_READY;	1027	ta->next->flags &= ~CF_READY;
974	}	1028	}
975		1029
976	static void	1030	static void
977	prepare_cede (struct transfer_args *ta)	1031	prepare_cede (struct transfer_args *ta)
978	{	1032	{
979	api_ready (GvSV (coro_current));	1033	api_ready (coro_current);
980		1034
981	prepare_schedule (ta);	1035	prepare_schedule (ta);
982	}	1036	}
983		1037
984	static void	1038	static void
985	api_schedule (void)	1039	api_schedule (void)
986	{	1040	{
987	dTHX;
988	struct transfer_args ta;	1041	struct transfer_args ta;
989		1042
990	prepare_schedule (&ta);	1043	prepare_schedule (&ta);
991	TRANSFER (ta);	1044	TRANSFER (ta);
992	}	1045	}
993		1046
994	static void	1047	static void
995	api_cede (void)	1048	api_cede (void)
996	{	1049	{
997	dTHX;
998	struct transfer_args ta;	1050	struct transfer_args ta;
999		1051
1000	prepare_cede (&ta);	1052	prepare_cede (&ta);
1001	TRANSFER (ta);	1053	TRANSFER (ta);
1002	}	1054	}
…		…
1012	#endif	1064	#endif
1013	BOOT_PAGESIZE;	1065	BOOT_PAGESIZE;
1014		1066
1015	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1067	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1016		1068
1017	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1069	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1018	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1070	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1019	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1071	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
		1072	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1073	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1020		1074
1021	main_mainstack = PL_mainstack;	1075	main_mainstack = PL_mainstack;
1022		1076
1023	coroapi.ver = CORO_API_VERSION;	1077	coroapi.ver = CORO_API_VERSION;
1024	coroapi.transfer = api_transfer;	1078	coroapi.transfer = api_transfer;
…		…
1034	HV *hv;	1088	HV *hv;
1035	int i;	1089	int i;
1036		1090
1037	Newz (0, coro, 1, struct coro);	1091	Newz (0, coro, 1, struct coro);
1038	coro->args = newAV ();	1092	coro->args = newAV ();
		1093	coro->save = CORO_SAVE_ALL;
		1094	coro->flags = CF_NEW;
1039		1095
1040	hv = newHV ();	1096	hv = newHV ();
1041	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1097	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1042	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1098	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1043		1099
1044	for (i = 1; i < items; i++)	1100	for (i = 1; i < items; i++)
1045	av_push (coro->args, newSVsv (ST (i)));	1101	av_push (coro->args, newSVsv (ST (i)));
1046	}	1102	}
1047	OUTPUT:	1103	OUTPUT:
		1104	RETVAL
		1105
		1106	int
		1107	save (SV *coro, int new_save = -1)
		1108	CODE:
		1109	RETVAL = api_save (coro, new_save);
		1110	OUTPUT:
1048	RETVAL	1111	RETVAL
1049		1112
1050	void	1113	void
1051	_set_stacklevel (...)	1114	_set_stacklevel (...)
1052	ALIAS:	1115	ALIAS:
1053	Coro::State::transfer = 1	1116	Coro::State::transfer = 1
1054	Coro::schedule = 2	1117	Coro::schedule = 2
1055	Coro::cede = 3	1118	Coro::cede = 3
1056	Coro::Cont::yield = 4
1057	CODE:	1119	CODE:
1058	{	1120	{
1059	struct transfer_args ta;	1121	struct transfer_args ta;
1060		1122
1061	switch (ix)	1123	switch (ix)
1062	{	1124	{
1063	case 0:	1125	case 0:
1064	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1126	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1065	ta.next = 0;	1127	ta.next = 0;
1066	ta.flags = TRANSFER_SET_STACKLEVEL;
1067	break;	1128	break;
1068		1129
1069	case 1:	1130	case 1:
1070	if (items != 3)	1131	if (items != 2)
1071	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);	1132	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1072		1133
1073	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));	1134	prepare_transfer (&ta, ST (0), ST (1));
1074	break;	1135	break;
1075		1136
1076	case 2:	1137	case 2:
1077	prepare_schedule (&ta);	1138	prepare_schedule (&ta);
1078	break;	1139	break;
1079		1140
1080	case 3:	1141	case 3:
1081	prepare_cede (&ta);	1142	prepare_cede (&ta);
1082	break;	1143	break;
1083
1084	case 4:
1085	{
1086	SV *yieldstack;
1087	SV *sv;
1088	AV *defav = GvAV (PL_defgv);
1089
1090	yieldstack = *hv_fetch (
1091	(HV *)SvRV (GvSV (coro_current)),
1092	"yieldstack", sizeof ("yieldstack") - 1,
1093	0
1094	);
1095
1096	/* set up @_ -- ugly */
1097	av_clear (defav);
1098	av_fill (defav, items - 1);
1099	while (items--)
1100	av_store (defav, items, SvREFCNT_inc (ST(items)));
1101
1102	sv = av_pop ((AV *)SvRV (yieldstack));
1103	ta.prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
1104	ta.next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
1105	ta.flags = 0;
1106	SvREFCNT_dec (sv);
1107	}
1108	break;
1109
1110	}	1144	}
1111		1145
1112	TRANSFER (ta);	1146	TRANSFER (ta);
1113	}	1147	}
1114		1148
…		…
1158	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1192	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1159	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1193	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1160	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1194	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1161	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1195	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1162		1196
1163	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1197	coro_current = get_sv ("Coro::current", FALSE);
1164	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1198	SvREADONLY_on (coro_current);
1165		1199
1166	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1200	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1167	coro_ready[i] = newAV ();	1201	coro_ready[i] = newAV ();
1168		1202
1169	{	1203	{
1170	SV *sv = perl_get_sv("Coro::API", 1);	1204	SV *sv = perl_get_sv("Coro::API", 1);
1171		1205
1172	coroapi.schedule = api_schedule;	1206	coroapi.schedule = api_schedule;
		1207	coroapi.save = api_save;
1173	coroapi.cede = api_cede;	1208	coroapi.cede = api_cede;
1174	coroapi.ready = api_ready;	1209	coroapi.ready = api_ready;
1175	coroapi.is_ready = api_is_ready;	1210	coroapi.is_ready = api_is_ready;
1176	coroapi.nready = &coro_nready;	1211	coroapi.nready = &coro_nready;
1177	coroapi.current = coro_current;	1212	coroapi.current = coro_current;
…		…
1179	GCoroAPI = &coroapi;	1214	GCoroAPI = &coroapi;
1180	sv_setiv (sv, (IV)&coroapi);	1215	sv_setiv (sv, (IV)&coroapi);
1181	SvREADONLY_on (sv);	1216	SvREADONLY_on (sv);
1182	}	1217	}
1183	}	1218	}
		1219
		1220	void
		1221	_set_current (SV *current)
		1222	PROTOTYPE: $
		1223	CODE:
		1224	SvREFCNT_dec (SvRV (coro_current));
		1225	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1184		1226
1185	int	1227	int
1186	prio (Coro::State coro, int newprio = 0)	1228	prio (Coro::State coro, int newprio = 0)
1187	ALIAS:	1229	ALIAS:
1188	nice = 1	1230	nice = 1
…		…
1230		1272
1231	SV *	1273	SV *
1232	_get_state ()	1274	_get_state ()
1233	CODE:	1275	CODE:
1234	{	1276	{
1235	struct {	1277	struct io_state *data;
1236	int errorno;
1237	int laststype;
1238	int laststatval;
1239	Stat_t statcache;
1240	} data;
1241		1278
		1279	RETVAL = newSV (sizeof (struct io_state));
		1280	data = (struct io_state *)SvPVX (RETVAL);
		1281	SvCUR_set (RETVAL, sizeof (struct io_state));
		1282	SvPOK_only (RETVAL);
		1283
1242	data.errorno = errno;	1284	data->errorno = errno;
1243	data.laststype = PL_laststype;	1285	data->laststype = PL_laststype;
1244	data.laststatval = PL_laststatval;	1286	data->laststatval = PL_laststatval;
1245	data.statcache = PL_statcache;	1287	data->statcache = PL_statcache;
1246
1247	RETVAL = newSVpvn ((char *)&data, sizeof data);
1248	}	1288	}
1249	OUTPUT:	1289	OUTPUT:
1250	RETVAL	1290	RETVAL
1251		1291
1252	void	1292	void
1253	_set_state (char *data_)	1293	_set_state (char *data_)
1254	PROTOTYPE: $	1294	PROTOTYPE: $
1255	CODE:	1295	CODE:
1256	{	1296	{
1257	struct {	1297	struct io_state data = (void )data_;
1258	int errorno;
1259	int laststype;
1260	int laststatval;
1261	Stat_t statcache;
1262	} data = (void )data_;
1263		1298
1264	errno = data->errorno;	1299	errno = data->errorno;
1265	PL_laststype = data->laststype;	1300	PL_laststype = data->laststype;
1266	PL_laststatval = data->laststatval;	1301	PL_laststatval = data->laststatval;
1267	PL_statcache = data->statcache;	1302	PL_statcache = data->statcache;
1268	}	1303	}
		1304

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Comparing Coro/Coro/State.xs (file contents): Revision 1.113 by root, Thu Nov 30 20:54:24 2006 UTC vs. Revision 1.127 by root, Tue Dec 12 13:56:45 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.113 by root, Thu Nov 30 20:54:24 2006 UTC vs.
Revision 1.127 by root, Tue Dec 12 13:56:45 2006 UTC