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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.116 by root, Fri Dec 1 14:01:43 2006 UTC vs.
Revision 1.134 by root, Thu Jan 4 23:49:27 2007 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	/* the maximum number of idle cctx that will be pooled */
14	#define MAX_IDLE_CCTX 8
15
16	#define PERL_VERSION_ATLEAST(a,b,c) \
17	(PERL_REVISION > (a) \
18	\|\| (PERL_REVISION == (a) \
19	&& (PERL_VERSION > (b) \
20	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
21
22	#if !PERL_VERSION_ATLEAST (5,6,0)
23	# ifndef PL_ppaddr
24	# define PL_ppaddr ppaddr
25	# endif
26	# ifndef call_sv
27	# define call_sv perl_call_sv
28	# endif
29	# ifndef get_sv
30	# define get_sv perl_get_sv
31	# endif
32	# ifndef get_cv
33	# define get_cv perl_get_cv
34	# endif
35	# ifndef IS_PADGV
36	# define IS_PADGV(v) 0
37	# endif
38	# ifndef IS_PADCONST
39	# define IS_PADCONST(v) 0
40	# endif
41	#endif
42
43	#include <stdio.h>	9	#include <stdio.h>
44	#include <errno.h>	10	#include <errno.h>
45		11	#include <assert.h>
46	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
47	# undef STACKGUARD
48	#endif
49
50	#ifndef STACKGUARD
51	# define STACKGUARD 0
52	#endif
53		12
54	#ifdef HAVE_MMAP	13	#ifdef HAVE_MMAP
55	# include <unistd.h>	14	# include <unistd.h>
56	# include <sys/mman.h>	15	# include <sys/mman.h>
57	# ifndef MAP_ANONYMOUS	16	# ifndef MAP_ANONYMOUS
…		…
72	#else	31	#else
73	# define PAGESIZE 0	32	# define PAGESIZE 0
74	# define BOOT_PAGESIZE (void)0	33	# define BOOT_PAGESIZE (void)0
75	#endif	34	#endif
76		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
77	/* 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
78	* 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
79	* and should be unique. */	90	* and should be unique. */
80	#define dSTACKLEVEL int stacklevel	91	#define dSTACKLEVEL int stacklevel
81	#define STACKLEVEL ((void *)&stacklevel)	92	#define STACKLEVEL ((void *)&stacklevel)
82		93
83	#define IN_DESTRUCT (PL_main_cv == Nullcv)	94	#define IN_DESTRUCT (PL_main_cv == Nullcv)
84		95
85	#if __GNUC__ >= 3	96	#if __GNUC__ >= 3
86	# define attribute(x) __attribute__(x)	97	# define attribute(x) __attribute__(x)
		98	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
87	#else	99	#else
88	# define attribute(x)	100	# define attribute(x)
		101	# define BARRIER
89	#endif	102	#endif
90		103
91	#define NOINLINE attribute ((noinline))	104	#define NOINLINE attribute ((noinline))
92		105
93	#include "CoroAPI.h"	106	#include "CoroAPI.h"
94
95	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
96		107
97	#ifdef USE_ITHREADS	108	#ifdef USE_ITHREADS
98	static perl_mutex coro_mutex;	109	static perl_mutex coro_mutex;
99	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	110	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
100	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	111	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
101	#else	112	#else
102	# define LOCK (void)0	113	# define LOCK (void)0
103	# define UNLOCK (void)0	114	# define UNLOCK (void)0
104	#endif	115	#endif
105		116
		117	struct io_state
		118	{
		119	int errorno;
		120	I32 laststype;
		121	int laststatval;
		122	Stat_t statcache;
		123	};
		124
106	static struct CoroAPI coroapi;	125	static struct CoroAPI coroapi;
107	static AV main_mainstack; / used to differentiate between $main and others */	126	static AV main_mainstack; / used to differentiate between $main and others */
108	static HV coro_state_stash, coro_stash;	127	static HV coro_state_stash, coro_stash;
109	static SV coro_mortal; / will be freed after next transfer */	128	static SV coro_mortal; / will be freed after next transfer */
110		129
…		…
118	/* the stack */	137	/* the stack */
119	void *sptr;	138	void *sptr;
120	long ssize; /* positive == mmap, otherwise malloc */	139	long ssize; /* positive == mmap, otherwise malloc */
121		140
122	/* cpu state */	141	/* cpu state */
123	void idle_sp; / sp of top-level transfer/schedule/cede call */	142	void idle_sp; / sp of top-level transfer/schedule/cede call */
		143	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
124	JMPENV *top_env;	144	JMPENV *top_env;
125	coro_context cctx;	145	coro_context cctx;
126		146
127	int inuse;	147	int inuse;
128		148
…		…
130	int valgrind_id;	150	int valgrind_id;
131	#endif	151	#endif
132	} coro_cctx;	152	} coro_cctx;
133		153
134	enum {	154	enum {
135	CF_RUNNING, /* coroutine is running */	155	CF_RUNNING = 0x0001, /* coroutine is running */
136	CF_READY, /* coroutine is ready */	156	CF_READY = 0x0002, /* coroutine is ready */
		157	CF_NEW = 0x0004, /* has never been switched to */
		158	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
137	};	159	};
138		160
139	/* this is a structure representing a perl-level coroutine */	161	/* this is a structure representing a perl-level coroutine */
140	struct coro {	162	struct coro {
141	/* the c coroutine allocated to this perl coroutine, if any */	163	/* the c coroutine allocated to this perl coroutine, if any */
142	coro_cctx *cctx;	164	coro_cctx *cctx;
143		165
144	/* data associated with this coroutine (initial args) */	166	/* data associated with this coroutine (initial args) */
145	AV *args;	167	AV *args;
146	int refcnt;	168	int refcnt;
147	int flags;	169	int save; /* CORO_SAVE flags */
		170	int flags; /* CF_ flags */
148		171
149	/* optionally saved, might be zero */	172	/* optionally saved, might be zero */
150	AV *defav;	173	AV defav; / @_ */
151	SV *defsv;	174	SV defsv; / $_ */
152	SV *errsv;	175	SV errsv; / $@ */
		176	SV irssv; / $/ */
		177	SV irssv_sv; / real $/ cache */
153		178
154	#define VAR(name,type) type name;	179	#define VAR(name,type) type name;
155	# include "state.h"	180	# include "state.h"
156	#undef VAR	181	#undef VAR
157		182
…		…
243		268
244	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	269	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
245	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	270	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
246	else	271	else
247	{	272	{
248	#if 0	273	#if PREFER_PERL_FUNCTIONS
249	/* this is probably cleaner, but also slower? */	274	/* this is probably cleaner, but also slower? */
250	CV *cp = Perl_cv_clone (cv);	275	CV *cp = Perl_cv_clone (cv);
251	CvPADLIST (cv) = CvPADLIST (cp);	276	CvPADLIST (cv) = CvPADLIST (cp);
252	CvPADLIST (cp) = 0;	277	CvPADLIST (cp) = 0;
253	SvREFCNT_dec (cp);	278	SvREFCNT_dec (cp);
…		…
280	}	305	}
281		306
282	#define SB do {	307	#define SB do {
283	#define SE } while (0)	308	#define SE } while (0)
284		309
285	#define LOAD(state) load_state((state));
286	#define SAVE(state,flags) save_state((state),(flags));
287
288	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	310	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
289		311
290	static void	312	static void
291	load_state(Coro__State c)	313	load_perl (Coro__State c)
292	{	314	{
293	#define VAR(name,type) PL_ ## name = c->name;	315	#define VAR(name,type) PL_ ## name = c->name;
294	# include "state.h"	316	# include "state.h"
295	#undef VAR	317	#undef VAR
296		318
297	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	319	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
298	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	320	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
299	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	321	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		322	if (c->irssv)
		323	{
		324	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		325	SvREFCNT_dec (c->irssv);
		326	else
		327	{
		328	REPLACE_SV (PL_rs, c->irssv);
		329	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
		330	sv_setsv (c->irssv_sv, PL_rs);
		331	}
		332	}
300		333
301	{	334	{
302	dSP;	335	dSP;
303	CV *cv;	336	CV *cv;
304		337
…		…
313	PUTBACK;	346	PUTBACK;
314	}	347	}
315	}	348	}
316		349
317	static void	350	static void
318	save_state(Coro__State c, int flags)	351	save_perl (Coro__State c)
319	{	352	{
320	{	353	{
321	dSP;	354	dSP;
322	I32 cxix = cxstack_ix;	355	I32 cxix = cxstack_ix;
323	PERL_CONTEXT *ccstk = cxstack;	356	PERL_CONTEXT *ccstk = cxstack;
…		…
326	/*	359	/*
327	* the worst thing you can imagine happens first - we have to save	360	* the worst thing you can imagine happens first - we have to save
328	* (and reinitialize) all cv's in the whole callchain :(	361	* (and reinitialize) all cv's in the whole callchain :(
329	*/	362	*/
330		363
		364	EXTEND (SP, 3 + 1);
331	PUSHs (Nullsv);	365	PUSHs (Nullsv);
332	/* this loop was inspired by pp_caller */	366	/* this loop was inspired by pp_caller */
333	for (;;)	367	for (;;)
334	{	368	{
335	while (cxix >= 0)	369	while (cxix >= 0)
336	{	370	{
337	PERL_CONTEXT *cx = &ccstk[cxix--];	371	PERL_CONTEXT *cx = &ccstk[cxix--];
338		372
339	if (CxTYPE(cx) == CXt_SUB)	373	if (CxTYPE (cx) == CXt_SUB)
340	{	374	{
341	CV *cv = cx->blk_sub.cv;	375	CV *cv = cx->blk_sub.cv;
342		376
343	if (CvDEPTH (cv))	377	if (CvDEPTH (cv))
344	{	378	{
345	EXTEND (SP, 3);	379	EXTEND (SP, 3);
346
347	PUSHs ((SV *)CvPADLIST(cv));	380	PUSHs ((SV *)CvPADLIST (cv));
348	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	381	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
349	PUSHs ((SV *)cv);	382	PUSHs ((SV *)cv);
350		383
351	CvDEPTH (cv) = 0;	384	CvDEPTH (cv) = 0;
352	get_padlist (cv);	385	get_padlist (cv);
353	}	386	}
354	}	387	}
355	#ifdef CXt_FORMAT
356	else if (CxTYPE(cx) == CXt_FORMAT)
357	{
358	/* I never used formats, so how should I know how these are implemented? */
359	/* my bold guess is as a simple, plain sub... */
360	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
361	}
362	#endif
363	}	388	}
364		389
365	if (top_si->si_type == PERLSI_MAIN)	390	if (top_si->si_type == PERLSI_MAIN)
366	break;	391	break;
367		392
…		…
371	}	396	}
372		397
373	PUTBACK;	398	PUTBACK;
374	}	399	}
375		400
376	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	401	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
377	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	402	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
378	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	403	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		404	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
379		405
380	#define VAR(name,type)c->name = PL_ ## name;	406	#define VAR(name,type)c->name = PL_ ## name;
381	# include "state.h"	407	# include "state.h"
382	#undef VAR	408	#undef VAR
383	}	409	}
…		…
386	* allocate various perl stacks. This is an exact copy	412	* allocate various perl stacks. This is an exact copy
387	* of perl.c:init_stacks, except that it uses less memory	413	* of perl.c:init_stacks, except that it uses less memory
388	* on the (sometimes correct) assumption that coroutines do	414	* on the (sometimes correct) assumption that coroutines do
389	* not usually need a lot of stackspace.	415	* not usually need a lot of stackspace.
390	*/	416	*/
		417	#if PREFER_PERL_FUNCTIONS
		418	# define coro_init_stacks init_stacks
		419	#else
391	static void	420	static void
392	coro_init_stacks ()	421	coro_init_stacks ()
393	{	422	{
394	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	423	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
395	PL_curstackinfo->si_type = PERLSI_MAIN;	424	PL_curstackinfo->si_type = PERLSI_MAIN;
…		…
425	New(54,PL_retstack,16,OP*);	454	New(54,PL_retstack,16,OP*);
426	PL_retstack_ix = 0;	455	PL_retstack_ix = 0;
427	PL_retstack_max = 16;	456	PL_retstack_max = 16;
428	#endif	457	#endif
429	}	458	}
		459	#endif
430		460
431	/*	461	/*
432	* destroy the stacks, the callchain etc...	462	* destroy the stacks, the callchain etc...
433	*/	463	*/
434	static void	464	static void
435	coro_destroy_stacks ()	465	coro_destroy_stacks ()
436	{	466	{
437	if (!IN_DESTRUCT)	467	if (!IN_DESTRUCT)
438	{	468	{
439	/* is this ugly, I ask? */	469	/* restore all saved variables and stuff */
440	LEAVE_SCOPE (0);	470	LEAVE_SCOPE (0);
		471	assert (PL_tmps_floor == -1);
441		472
442	/* sure it is, but more important: is it correct?? :/ */	473	/* free all temporaries */
443	FREETMPS;	474	FREETMPS;
		475	assert (PL_tmps_ix == -1);
444		476
		477	/* unwind all extra stacks */
445	/POPSTACK_TO (PL_mainstack);//D//use/	478	POPSTACK_TO (PL_mainstack);
		479
		480	/* unwind main stack */
		481	dounwind (-1);
446	}	482	}
447		483
448	while (PL_curstackinfo->si_next)	484	while (PL_curstackinfo->si_next)
449	PL_curstackinfo = PL_curstackinfo->si_next;	485	PL_curstackinfo = PL_curstackinfo->si_next;
450		486
451	while (PL_curstackinfo)	487	while (PL_curstackinfo)
452	{	488	{
453	PERL_SI *p = PL_curstackinfo->si_prev;	489	PERL_SI *p = PL_curstackinfo->si_prev;
454		490
455	{ /D//remove/
456	dSP;
457	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
458	PUTBACK; /* possibly superfluous */
459	}
460
461	if (!IN_DESTRUCT)	491	if (!IN_DESTRUCT)
462	{
463	dounwind (-1);/D//remove/
464	SvREFCNT_dec (PL_curstackinfo->si_stack);	492	SvREFCNT_dec (PL_curstackinfo->si_stack);
465	}
466		493
467	Safefree (PL_curstackinfo->si_cxstack);	494	Safefree (PL_curstackinfo->si_cxstack);
468	Safefree (PL_curstackinfo);	495	Safefree (PL_curstackinfo);
469	PL_curstackinfo = p;	496	PL_curstackinfo = p;
470	}	497	}
…		…
485	* emulate part of the perl startup here.	512	* emulate part of the perl startup here.
486	*/	513	*/
487		514
488	coro_init_stacks ();	515	coro_init_stacks ();
489		516
490	PL_curcop = 0;	517	PL_curcop = &PL_compiling;
491	PL_in_eval = 0;	518	PL_in_eval = EVAL_NULL;
492	PL_curpm = 0;	519	PL_curpm = 0;
		520	PL_localizing = 0;
		521	PL_dirty = 0;
		522	PL_restartop = 0;
493		523
494	{	524	{
495	dSP;	525	dSP;
496	LOGOP myop;	526	LOGOP myop;
497		527
498	/* I have no idea why this is needed, but it is */
499	PUSHMARK (SP);
500
501	SvREFCNT_dec (GvAV (PL_defgv));	528	SvREFCNT_dec (GvAV (PL_defgv));
502	GvAV (PL_defgv) = coro->args; coro->args = 0;	529	GvAV (PL_defgv) = coro->args; coro->args = 0;
503		530
504	Zero (&myop, 1, LOGOP);	531	Zero (&myop, 1, LOGOP);
505	myop.op_next = Nullop;	532	myop.op_next = Nullop;
506	myop.op_flags = OPf_WANT_VOID;	533	myop.op_flags = OPf_WANT_VOID;
507		534
508	PL_op = (OP *)&myop;
509
510	PUSHMARK (SP);	535	PUSHMARK (SP);
511	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	536	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
512	PUTBACK;	537	PUTBACK;
		538	PL_op = (OP *)&myop;
513	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	539	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
514	SPAGAIN;	540	SPAGAIN;
515
516	ENTER; /* necessary e.g. for dounwind */
517	}	541	}
		542
		543	ENTER; /* necessary e.g. for dounwind */
518	}	544	}
519		545
520	static void	546	static void
521	free_coro_mortal ()	547	free_coro_mortal ()
522	{	548	{
…		…
525	SvREFCNT_dec (coro_mortal);	551	SvREFCNT_dec (coro_mortal);
526	coro_mortal = 0;	552	coro_mortal = 0;
527	}	553	}
528	}	554	}
529		555
		556	/* inject a fake call to Coro::State::_cctx_init into the execution */
530	static void NOINLINE	557	static void NOINLINE
531	prepare_cctx (coro_cctx *cctx)	558	prepare_cctx (coro_cctx *cctx)
532	{	559	{
533	dSP;	560	dSP;
534	LOGOP myop;	561	LOGOP myop;
535		562
536	Zero (&myop, 1, LOGOP);	563	Zero (&myop, 1, LOGOP);
537	myop.op_next = PL_op;	564	myop.op_next = PL_op;
538	myop.op_flags = OPf_WANT_VOID;	565	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
539
540	sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx));
541		566
542	PUSHMARK (SP);	567	PUSHMARK (SP);
		568	EXTEND (SP, 2);
		569	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));
543	XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	570	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
544	PUTBACK;	571	PUTBACK;
		572	PL_op = (OP *)&myop;
545	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);	573	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
546	SPAGAIN;	574	SPAGAIN;
547	}	575	}
548		576
549	static void	577	static void
550	coro_run (void *arg)	578	coro_run (void *arg)
551	{	579	{
552	/* coro_run is the alternative epilogue of transfer() */	580	/* coro_run is the alternative tail of transfer(), so unlock here. */
553	UNLOCK;	581	UNLOCK;
554		582
555	/*	583	/*
556	* this is a _very_ stripped down perl interpreter ;)	584	* this is a _very_ stripped down perl interpreter ;)
557	*/	585	*/
…		…
559		587
560	/* inject call to cctx_init */	588	/* inject call to cctx_init */
561	prepare_cctx ((coro_cctx *)arg);	589	prepare_cctx ((coro_cctx *)arg);
562		590
563	/* somebody will hit me for both perl_run and PL_restartop */	591	/* somebody will hit me for both perl_run and PL_restartop */
		592	PL_restartop = PL_op;
564	perl_run (PL_curinterp);	593	perl_run (PL_curinterp);
565		594
566	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	595	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
567	abort ();	596	abort ();
568	}	597	}
…		…
572	{	601	{
573	coro_cctx *cctx;	602	coro_cctx *cctx;
574		603
575	++cctx_count;	604	++cctx_count;
576		605
577	New (0, cctx, 1, coro_cctx);	606	Newz (0, cctx, 1, coro_cctx);
578		607
579	#if HAVE_MMAP	608	#if HAVE_MMAP
580		609
581	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	610	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
582	/* mmap suppsedly does allocate-on-write for us */	611	/* mmap supposedly does allocate-on-write for us */
583	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	612	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
584		613
585	if (cctx->sptr == (void *)-1)	614	if (cctx->sptr == (void *)-1)
586	{	615	{
587	perror ("FATAL: unable to mmap stack for coroutine");	616	perror ("FATAL: unable to mmap stack for coroutine");
…		…
677	cctx_first = cctx;	706	cctx_first = cctx;
678	}	707	}
679		708
680	/* never call directly, always through the coro_state_transfer global variable */	709	/* never call directly, always through the coro_state_transfer global variable */
681	static void NOINLINE	710	static void NOINLINE
682	transfer (struct coro prev, struct coro next, int flags)	711	transfer (struct coro prev, struct coro next)
683	{	712	{
684	dSTACKLEVEL;	713	dSTACKLEVEL;
685		714
686	/* sometimes transfer is only called to set idle_sp */	715	/* sometimes transfer is only called to set idle_sp */
687	if (flags == TRANSFER_SET_STACKLEVEL)	716	if (!next)
		717	{
688	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	718	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
		719	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
		720	}
689	else if (prev != next)	721	else if (prev != next)
690	{	722	{
691	coro_cctx *prev__cctx;	723	coro_cctx *prev__cctx;
692		724
693	if (!prev->cctx)	725	if (prev->flags & CF_NEW)
694	{	726	{
695	/* create a new empty context */	727	/* create a new empty context */
696	Newz (0, prev->cctx, 1, coro_cctx);	728	Newz (0, prev->cctx, 1, coro_cctx);
697	prev->cctx->inuse = 1;	729	prev->cctx->inuse = 1;
		730	prev->flags &= ~CF_NEW;
698	prev->flags \|= CF_RUNNING;	731	prev->flags \|= CF_RUNNING;
699	}	732	}
700		733
		734	/TODO: must not croak here /
701	if (!prev->flags & CF_RUNNING)	735	if (!prev->flags & CF_RUNNING)
702	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");	736	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
703		737
704	if (next->flags & CF_RUNNING)	738	if (next->flags & CF_RUNNING)
705	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	739	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
706		740
		741	if (next->flags & CF_DESTROYED)
		742	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		743
707	prev->flags &= ~CF_RUNNING;	744	prev->flags &= ~CF_RUNNING;
708	next->flags \|= CF_RUNNING;	745	next->flags \|= CF_RUNNING;
709		746
710	LOCK;	747	LOCK;
711		748
712	if (next->mainstack)	749	if (next->flags & CF_NEW)
713	{	750	{
714	/* coroutine already started */	751	/* need to start coroutine */
715	SAVE (prev, flags);	752	next->flags &= ~CF_NEW;
716	LOAD (next);	753	/* first get rid of the old state */
		754	save_perl (prev);
		755	/* setup coroutine call */
		756	setup_coro (next);
		757	/* need a new stack */
		758	assert (!next->cctx);
717	}	759	}
718	else	760	else
719	{	761	{
720	/* need to start coroutine */	762	/* coroutine already started */
721	/* first get rid of the old state */	763	save_perl (prev);
722	SAVE (prev, -1);	764	load_perl (next);
723	/* setup coroutine call */
724	setup_coro (next);
725	/* need a new stack */
726	assert (!next->stack);
727	}	765	}
728		766
729	prev__cctx = prev->cctx;	767	prev__cctx = prev->cctx;
730		768
731	/* possibly "free" the cctx */	769	/* possibly "free" the cctx */
732	if (prev__cctx->idle_sp == STACKLEVEL)	770	if (prev__cctx->idle_sp == STACKLEVEL)
733	{	771	{
734	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	772	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
735	assert (PL_top_env == prev__cctx->top_env);	773	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
		774
		775	prev->cctx = 0;
736		776
737	cctx_put (prev__cctx);	777	cctx_put (prev__cctx);
738	prev->cctx = 0;	778	prev__cctx->inuse = 0;
739	}	779	}
740		780
741	if (!next->cctx)	781	if (!next->cctx)
		782	{
742	next->cctx = cctx_get ();	783	next->cctx = cctx_get ();
		784	assert (!next->cctx->inuse);
		785	next->cctx->inuse = 1;
		786	}
743		787
744	if (prev__cctx != next->cctx)	788	if (prev__cctx != next->cctx)
745	{	789	{
746	assert ( prev__cctx->inuse);
747	assert (!next->cctx->inuse);
748
749	prev__cctx->inuse = 0;
750	next->cctx->inuse = 1;
751
752	prev__cctx->top_env = PL_top_env;	790	prev__cctx->top_env = PL_top_env;
753	PL_top_env = next->cctx->top_env;	791	PL_top_env = next->cctx->top_env;
754	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	792	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
755	}	793	}
756		794
757	free_coro_mortal ();	795	free_coro_mortal ();
758
759	UNLOCK;	796	UNLOCK;
760	}	797	}
761	}	798	}
762		799
763	struct transfer_args	800	struct transfer_args
764	{	801	{
765	struct coro prev, next;	802	struct coro prev, next;
766	int flags;
767	};	803	};
768		804
769	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)	805	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
770		806
771	static void	807	static int
772	coro_state_destroy (struct coro *coro)	808	coro_state_destroy (struct coro *coro)
773	{	809	{
774	if (coro->refcnt--)	810	if (coro->flags & CF_DESTROYED)
775	return;	811	return 0;
776		812
777	if (coro->flags & CF_RUNNING)	813	coro->flags \|= CF_DESTROYED;
778	croak ("FATAL: tried to destroy currently running coroutine");
779		814
780	if (coro->mainstack && coro->mainstack != main_mainstack)	815	if (coro->mainstack && coro->mainstack != main_mainstack)
781	{	816	{
		817	assert (!(coro->flags & CF_RUNNING));
		818
782	struct coro temp;	819	struct coro temp;
		820	Zero (&temp, 1, struct coro);
		821	temp.save = CORO_SAVE_ALL;
783		822
784	SAVE ((&temp), TRANSFER_SAVE_ALL);	823	if (coro->flags & CF_RUNNING)
785	LOAD (coro);	824	croak ("FATAL: tried to destroy currently running coroutine");
		825
		826	save_perl (&temp);
		827	load_perl (coro);
786		828
787	coro_destroy_stacks ();	829	coro_destroy_stacks ();
788		830
789	LOAD ((&temp)); /* this will get rid of defsv etc.. */	831	load_perl (&temp); /* this will get rid of defsv etc.. */
790		832
791	coro->mainstack = 0;	833	coro->mainstack = 0;
792	}	834	}
793		835
794	cctx_destroy (coro->cctx);	836	cctx_destroy (coro->cctx);
795	SvREFCNT_dec (coro->args);	837	SvREFCNT_dec (coro->args);
796	Safefree (coro);	838
		839	return 1;
797	}	840	}
798		841
799	static int	842	static int
800	coro_state_clear (pTHX_ SV sv, MAGIC mg)	843	coro_state_free (pTHX_ SV sv, MAGIC mg)
801	{	844	{
802	struct coro coro = (struct coro )mg->mg_ptr;	845	struct coro coro = (struct coro )mg->mg_ptr;
803	mg->mg_ptr = 0;	846	mg->mg_ptr = 0;
804		847
		848	if (--coro->refcnt < 0)
		849	{
805	coro_state_destroy (coro);	850	coro_state_destroy (coro);
		851	Safefree (coro);
		852	}
806		853
807	return 0;	854	return 0;
808	}	855	}
809		856
810	static int	857	static int
…		…
817	return 0;	864	return 0;
818	}	865	}
819		866
820	static MGVTBL coro_state_vtbl = {	867	static MGVTBL coro_state_vtbl = {
821	0, 0, 0, 0,	868	0, 0, 0, 0,
822	coro_state_clear,	869	coro_state_free,
823	0,	870	0,
824	#ifdef MGf_DUP	871	#ifdef MGf_DUP
825	coro_state_dup,	872	coro_state_dup,
826	#else	873	#else
827	# define MGf_DUP 0	874	# define MGf_DUP 0
…		…
849	assert (mg->mg_type == PERL_MAGIC_ext);	896	assert (mg->mg_type == PERL_MAGIC_ext);
850	return (struct coro *)mg->mg_ptr;	897	return (struct coro *)mg->mg_ptr;
851	}	898	}
852		899
853	static void	900	static void
854	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)	901	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)
855	{	902	{
856	ta->prev = SvSTATE (prev);	903	ta->prev = SvSTATE (prev_sv);
857	ta->next = SvSTATE (next);	904	ta->next = SvSTATE (next_sv);
858	ta->flags = flags;
859	}	905	}
860		906
861	static void	907	static void
862	api_transfer (SV prev, SV next, int flags)	908	api_transfer (SV prev_sv, SV next_sv)
863	{	909	{
864	dTHX;
865	struct transfer_args ta;	910	struct transfer_args ta;
866		911
867	prepare_transfer (&ta, prev, next, flags);	912	prepare_transfer (&ta, prev_sv, next_sv);
868	TRANSFER (ta);	913	TRANSFER (ta);
		914	}
		915
		916	static int
		917	api_save (SV *coro_sv, int new_save)
		918	{
		919	struct coro *coro = SvSTATE (coro_sv);
		920	int old_save = coro->save;
		921
		922	if (new_save >= 0)
		923	coro->save = new_save;
		924
		925	return old_save;
869	}	926	}
870		927
871	/ Coro ******************************************************************/	928	/ Coro ******************************************************************/
872		929
873	#define PRIO_MAX 3	930	#define PRIO_MAX 3
…		…
876	#define PRIO_LOW -1	933	#define PRIO_LOW -1
877	#define PRIO_IDLE -3	934	#define PRIO_IDLE -3
878	#define PRIO_MIN -4	935	#define PRIO_MIN -4
879		936
880	/* for Coro.pm */	937	/* for Coro.pm */
881	static GV coro_current, coro_idle;	938	static SV *coro_current;
882	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	939	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
883	static int coro_nready;	940	static int coro_nready;
884		941
885	static void	942	static void
886	coro_enq (SV *coro_sv)	943	coro_enq (SV *coro_sv)
…		…
919	coro = SvSTATE (coro_sv);	976	coro = SvSTATE (coro_sv);
920		977
921	if (coro->flags & CF_READY)	978	if (coro->flags & CF_READY)
922	return 0;	979	return 0;
923		980
924	if (coro->flags & CF_RUNNING)
925	croak ("Coro::ready called on currently running coroutine");
926
927	coro->flags \|= CF_READY;	981	coro->flags \|= CF_READY;
928		982
929	LOCK;	983	LOCK;
930	coro_enq (SvREFCNT_inc (coro_sv));	984	coro_enq (SvREFCNT_inc (coro_sv));
931	UNLOCK;	985	UNLOCK;
…		…
934	}	988	}
935		989
936	static int	990	static int
937	api_is_ready (SV *coro_sv)	991	api_is_ready (SV *coro_sv)
938	{	992	{
939	return !!SvSTATE (coro_sv)->flags & CF_READY;	993	return !!(SvSTATE (coro_sv)->flags & CF_READY);
940	}	994	}
941		995
942	static void	996	static void
943	prepare_schedule (struct transfer_args *ta)	997	prepare_schedule (struct transfer_args *ta)
944	{	998	{
945	SV current, prev, *next;	999	SV prev_sv, next_sv;
946
947	current = GvSV (coro_current);
948		1000
949	for (;;)	1001	for (;;)
950	{	1002	{
951	LOCK;	1003	LOCK;
952	next = coro_deq (PRIO_MIN);	1004	next_sv = coro_deq (PRIO_MIN);
953	UNLOCK;	1005	UNLOCK;
954		1006
		1007	/* nothing to schedule: call the idle handler */
955	if (next)	1008	if (!next_sv)
956	break;
957
958	{	1009	{
959	dSP;	1010	dSP;
960		1011
961	ENTER;	1012	ENTER;
962	SAVETMPS;	1013	SAVETMPS;
963		1014
964	PUSHMARK (SP);	1015	PUSHMARK (SP);
965	PUTBACK;	1016	PUTBACK;
966	call_sv (GvSV (coro_idle), G_DISCARD);	1017	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
967		1018
968	FREETMPS;	1019	FREETMPS;
969	LEAVE;	1020	LEAVE;
		1021	continue;
970	}	1022	}
971	}
972		1023
973	prev = SvRV (current);	1024	ta->next = SvSTATE (next_sv);
974	SvRV (current) = next;	1025
		1026	/* cannot transfer to destroyed coros, skip and look for next */
		1027	if (ta->next->flags & CF_DESTROYED)
		1028	{
		1029	SvREFCNT_dec (next_sv);
		1030	continue;
		1031	}
		1032
		1033	break;
		1034	}
975		1035
976	/* free this only after the transfer */	1036	/* free this only after the transfer */
		1037	prev_sv = SvRV (coro_current);
		1038	SvRV_set (coro_current, next_sv);
		1039	ta->prev = SvSTATE (prev_sv);
		1040
		1041	assert (ta->next->flags & CF_READY);
		1042	ta->next->flags &= ~CF_READY;
		1043
977	LOCK;	1044	LOCK;
978	free_coro_mortal ();	1045	free_coro_mortal ();
		1046	coro_mortal = prev_sv;
979	UNLOCK;	1047	UNLOCK;
980	coro_mortal = prev;
981
982	ta->prev = SvSTATE (prev);
983	ta->next = SvSTATE (next);
984	ta->flags = TRANSFER_SAVE_ALL;
985
986	ta->next->flags &= ~CF_READY;
987	}	1048	}
988		1049
989	static void	1050	static void
990	prepare_cede (struct transfer_args *ta)	1051	prepare_cede (struct transfer_args *ta)
991	{	1052	{
992	api_ready (GvSV (coro_current));	1053	api_ready (coro_current);
993
994	prepare_schedule (ta);	1054	prepare_schedule (ta);
995	}	1055	}
996		1056
		1057	static int
		1058	prepare_cede_notself (struct transfer_args *ta)
		1059	{
		1060	if (coro_nready)
		1061	{
		1062	SV *prev = SvRV (coro_current);
		1063	prepare_schedule (ta);
		1064	api_ready (prev);
		1065	return 1;
		1066	}
		1067	else
		1068	return 0;
		1069	}
		1070
997	static void	1071	static void
998	api_schedule (void)	1072	api_schedule (void)
999	{	1073	{
1000	dTHX;
1001	struct transfer_args ta;	1074	struct transfer_args ta;
1002		1075
1003	prepare_schedule (&ta);	1076	prepare_schedule (&ta);
1004	TRANSFER (ta);	1077	TRANSFER (ta);
1005	}	1078	}
1006		1079
1007	static void	1080	static int
1008	api_cede (void)	1081	api_cede (void)
1009	{	1082	{
1010	dTHX;
1011	struct transfer_args ta;	1083	struct transfer_args ta;
1012		1084
1013	prepare_cede (&ta);	1085	prepare_cede (&ta);
		1086
		1087	if (ta.prev != ta.next)
		1088	{
1014	TRANSFER (ta);	1089	TRANSFER (ta);
		1090	return 1;
		1091	}
		1092	else
		1093	return 0;
		1094	}
		1095
		1096	static int
		1097	api_cede_notself (void)
		1098	{
		1099	struct transfer_args ta;
		1100
		1101	if (prepare_cede_notself (&ta))
		1102	{
		1103	TRANSFER (ta);
		1104	return 1;
		1105	}
		1106	else
		1107	return 0;
1015	}	1108	}
1016		1109
1017	MODULE = Coro::State PACKAGE = Coro::State	1110	MODULE = Coro::State PACKAGE = Coro::State
1018		1111
1019	PROTOTYPES: DISABLE	1112	PROTOTYPES: DISABLE
…		…
1025	#endif	1118	#endif
1026	BOOT_PAGESIZE;	1119	BOOT_PAGESIZE;
1027		1120
1028	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1121	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1029		1122
1030	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1123	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1031	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1124	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1032	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1125	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
		1126	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1127	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1033		1128
1034	main_mainstack = PL_mainstack;	1129	main_mainstack = PL_mainstack;
1035		1130
1036	coroapi.ver = CORO_API_VERSION;	1131	coroapi.ver = CORO_API_VERSION;
1037	coroapi.transfer = api_transfer;	1132	coroapi.transfer = api_transfer;
…		…
1047	HV *hv;	1142	HV *hv;
1048	int i;	1143	int i;
1049		1144
1050	Newz (0, coro, 1, struct coro);	1145	Newz (0, coro, 1, struct coro);
1051	coro->args = newAV ();	1146	coro->args = newAV ();
		1147	coro->save = CORO_SAVE_ALL;
		1148	coro->flags = CF_NEW;
1052		1149
1053	hv = newHV ();	1150	hv = newHV ();
1054	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1151	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1055	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1152	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1056		1153
1057	for (i = 1; i < items; i++)	1154	for (i = 1; i < items; i++)
1058	av_push (coro->args, newSVsv (ST (i)));	1155	av_push (coro->args, newSVsv (ST (i)));
1059	}	1156	}
1060	OUTPUT:	1157	OUTPUT:
		1158	RETVAL
		1159
		1160	int
		1161	save (SV *coro, int new_save = -1)
		1162	CODE:
		1163	RETVAL = api_save (coro, new_save);
		1164	OUTPUT:
1061	RETVAL	1165	RETVAL
1062		1166
1063	void	1167	void
1064	_set_stacklevel (...)	1168	_set_stacklevel (...)
1065	ALIAS:	1169	ALIAS:
1066	Coro::State::transfer = 1	1170	Coro::State::transfer = 1
1067	Coro::schedule = 2	1171	Coro::schedule = 2
1068	Coro::cede = 3	1172	Coro::cede = 3
1069	Coro::Cont::yield = 4	1173	Coro::cede_notself = 4
1070	CODE:	1174	CODE:
1071	{	1175	{
1072	struct transfer_args ta;	1176	struct transfer_args ta;
1073		1177
1074	switch (ix)	1178	switch (ix)
1075	{	1179	{
1076	case 0:	1180	case 0:
1077	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1181	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1078	ta.next = 0;	1182	ta.next = 0;
1079	ta.flags = TRANSFER_SET_STACKLEVEL;
1080	break;	1183	break;
1081		1184
1082	case 1:	1185	case 1:
1083	if (items != 3)	1186	if (items != 2)
1084	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);	1187	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1085		1188
1086	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));	1189	prepare_transfer (&ta, ST (0), ST (1));
1087	break;	1190	break;
1088		1191
1089	case 2:	1192	case 2:
1090	prepare_schedule (&ta);	1193	prepare_schedule (&ta);
1091	break;	1194	break;
…		…
1093	case 3:	1196	case 3:
1094	prepare_cede (&ta);	1197	prepare_cede (&ta);
1095	break;	1198	break;
1096		1199
1097	case 4:	1200	case 4:
1098	{	1201	if (!prepare_cede_notself (&ta))
1099	SV *yieldstack;	1202	XSRETURN_EMPTY;
1100	SV *sv;
1101	AV *defav = GvAV (PL_defgv);
1102		1203
1103	yieldstack = *hv_fetch (
1104	(HV *)SvRV (GvSV (coro_current)),
1105	"yieldstack", sizeof ("yieldstack") - 1,
1106	0
1107	);
1108
1109	/* set up @_ -- ugly */
1110	av_clear (defav);
1111	av_fill (defav, items - 1);
1112	while (items--)
1113	av_store (defav, items, SvREFCNT_inc (ST(items)));
1114
1115	sv = av_pop ((AV *)SvRV (yieldstack));
1116	ta.prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
1117	ta.next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
1118	ta.flags = 0;
1119	SvREFCNT_dec (sv);
1120	}
1121	break;	1204	break;
1122
1123	}	1205	}
1124		1206
		1207	BARRIER;
1125	TRANSFER (ta);	1208	TRANSFER (ta);
1126	}	1209	}
1127		1210
1128	void	1211	bool
1129	_clone_state_from (SV dst, SV src)	1212	_destroy (SV *coro_sv)
1130	CODE:	1213	CODE:
1131	{	1214	RETVAL = coro_state_destroy (SvSTATE (coro_sv));
1132	struct coro *coro_src = SvSTATE (src);	1215	OUTPUT:
1133		1216	RETVAL
1134	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1135
1136	++coro_src->refcnt;
1137	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1138	}
1139		1217
1140	void	1218	void
1141	_exit (code)	1219	_exit (code)
1142	int code	1220	int code
1143	PROTOTYPE: $	1221	PROTOTYPE: $
…		…
1171	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1249	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1172	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1250	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1173	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1251	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1174	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1252	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1175		1253
1176	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1254	coro_current = get_sv ("Coro::current", FALSE);
1177	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1255	SvREADONLY_on (coro_current);
1178		1256
1179	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1257	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1180	coro_ready[i] = newAV ();	1258	coro_ready[i] = newAV ();
1181		1259
1182	{	1260	{
1183	SV *sv = perl_get_sv("Coro::API", 1);	1261	SV *sv = perl_get_sv("Coro::API", 1);
1184		1262
1185	coroapi.schedule = api_schedule;	1263	coroapi.schedule = api_schedule;
		1264	coroapi.save = api_save;
1186	coroapi.cede = api_cede;	1265	coroapi.cede = api_cede;
		1266	coroapi.cede_notself = api_cede_notself;
1187	coroapi.ready = api_ready;	1267	coroapi.ready = api_ready;
1188	coroapi.is_ready = api_is_ready;	1268	coroapi.is_ready = api_is_ready;
1189	coroapi.nready = &coro_nready;	1269	coroapi.nready = &coro_nready;
1190	coroapi.current = coro_current;	1270	coroapi.current = coro_current;
1191		1271
1192	GCoroAPI = &coroapi;	1272	GCoroAPI = &coroapi;
1193	sv_setiv (sv, (IV)&coroapi);	1273	sv_setiv (sv, (IV)&coroapi);
1194	SvREADONLY_on (sv);	1274	SvREADONLY_on (sv);
1195	}	1275	}
1196	}	1276	}
		1277
		1278	void
		1279	_set_current (SV *current)
		1280	PROTOTYPE: $
		1281	CODE:
		1282	SvREFCNT_dec (SvRV (coro_current));
		1283	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1197		1284
1198	int	1285	int
1199	prio (Coro::State coro, int newprio = 0)	1286	prio (Coro::State coro, int newprio = 0)
1200	ALIAS:	1287	ALIAS:
1201	nice = 1	1288	nice = 1
…		…
1204	RETVAL = coro->prio;	1291	RETVAL = coro->prio;
1205		1292
1206	if (items > 1)	1293	if (items > 1)
1207	{	1294	{
1208	if (ix)	1295	if (ix)
1209	newprio += coro->prio;	1296	newprio = coro->prio - newprio;
1210		1297
1211	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1298	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
1212	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1299	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
1213		1300
1214	coro->prio = newprio;	1301	coro->prio = newprio;
1215	}	1302	}
1216	}	1303	}
		1304	OUTPUT:
		1305	RETVAL
1217		1306
1218	SV *	1307	SV *
1219	ready (SV *self)	1308	ready (SV *self)
1220	PROTOTYPE: $	1309	PROTOTYPE: $
1221	CODE:	1310	CODE:
…		…
1243		1332
1244	SV *	1333	SV *
1245	_get_state ()	1334	_get_state ()
1246	CODE:	1335	CODE:
1247	{	1336	{
1248	struct {	1337	struct io_state *data;
1249	int errorno;
1250	int laststype;
1251	int laststatval;
1252	Stat_t statcache;
1253	} data;
1254		1338
		1339	RETVAL = newSV (sizeof (struct io_state));
		1340	data = (struct io_state *)SvPVX (RETVAL);
		1341	SvCUR_set (RETVAL, sizeof (struct io_state));
		1342	SvPOK_only (RETVAL);
		1343
1255	data.errorno = errno;	1344	data->errorno = errno;
1256	data.laststype = PL_laststype;	1345	data->laststype = PL_laststype;
1257	data.laststatval = PL_laststatval;	1346	data->laststatval = PL_laststatval;
1258	data.statcache = PL_statcache;	1347	data->statcache = PL_statcache;
1259
1260	RETVAL = newSVpvn ((char *)&data, sizeof data);
1261	}	1348	}
1262	OUTPUT:	1349	OUTPUT:
1263	RETVAL	1350	RETVAL
1264		1351
1265	void	1352	void
1266	_set_state (char *data_)	1353	_set_state (char *data_)
1267	PROTOTYPE: $	1354	PROTOTYPE: $
1268	CODE:	1355	CODE:
1269	{	1356	{
1270	struct {	1357	struct io_state data = (void )data_;
1271	int errorno;
1272	int laststype;
1273	int laststatval;
1274	Stat_t statcache;
1275	} data = (void )data_;
1276		1358
1277	errno = data->errorno;	1359	errno = data->errorno;
1278	PL_laststype = data->laststype;	1360	PL_laststype = data->laststype;
1279	PL_laststatval = data->laststatval;	1361	PL_laststatval = data->laststatval;
1280	PL_statcache = data->statcache;	1362	PL_statcache = data->statcache;
1281	}	1363	}
		1364

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Comparing Coro/Coro/State.xs (file contents): Revision 1.116 by root, Fri Dec 1 14:01:43 2006 UTC vs. Revision 1.134 by root, Thu Jan 4 23:49:27 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.116 by root, Fri Dec 1 14:01:43 2006 UTC vs.
Revision 1.134 by root, Thu Jan 4 23:49:27 2007 UTC