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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.119 by root, Sat Dec 2 15:41:28 2006 UTC vs.
Revision 1.136 by root, Fri Jan 12 01:05:55 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	/* helper storage struct for Coro::AIO */
		118	struct io_state
		119	{
		120	int errorno;
		121	I32 laststype;
		122	int laststatval;
		123	Stat_t statcache;
		124	};
		125
106	static struct CoroAPI coroapi;	126	static struct CoroAPI coroapi;
107	static AV main_mainstack; / used to differentiate between $main and others */	127	static AV main_mainstack; / used to differentiate between $main and others */
108	static HV coro_state_stash, coro_stash;	128	static HV coro_state_stash, coro_stash;
109	static SV coro_mortal; / will be freed after next transfer */	129	static SV coro_mortal; / will be freed after next transfer */
110		130
…		…
118	/* the stack */	138	/* the stack */
119	void *sptr;	139	void *sptr;
120	long ssize; /* positive == mmap, otherwise malloc */	140	long ssize; /* positive == mmap, otherwise malloc */
121		141
122	/* cpu state */	142	/* cpu state */
123	void idle_sp; / sp of top-level transfer/schedule/cede call */	143	void idle_sp; / sp of top-level transfer/schedule/cede call */
		144	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
124	JMPENV *top_env;	145	JMPENV *top_env;
125	coro_context cctx;	146	coro_context cctx;
126		147
127	int inuse;	148	int inuse;
128		149
…		…
130	int valgrind_id;	151	int valgrind_id;
131	#endif	152	#endif
132	} coro_cctx;	153	} coro_cctx;
133		154
134	enum {	155	enum {
135	CF_RUNNING = 0x0001, /* coroutine is running */	156	CF_RUNNING = 0x0001, /* coroutine is running */
136	CF_READY = 0x0002, /* coroutine is ready */	157	CF_READY = 0x0002, /* coroutine is ready */
137	CF_NEW = 0x0004, /* ahs never been switched to */	158	CF_NEW = 0x0004, /* has never been switched to */
		159	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
138	};	160	};
139		161
140	/* this is a structure representing a perl-level coroutine */	162	/* this is a structure representing a perl-level coroutine */
141	struct coro {	163	struct coro {
142	/* the c coroutine allocated to this perl coroutine, if any */	164	/* the c coroutine allocated to this perl coroutine, if any */
143	coro_cctx *cctx;	165	coro_cctx *cctx;
144		166
145	/* data associated with this coroutine (initial args) */	167	/* data associated with this coroutine (initial args) */
146	AV *args;	168	AV *args;
147	int refcnt;	169	int refcnt;
148	int flags;	170	int save; /* CORO_SAVE flags */
		171	int flags; /* CF_ flags */
149		172
150	/* optionally saved, might be zero */	173	/* optionally saved, might be zero */
151	AV *defav;	174	AV defav; / @_ */
152	SV *defsv;	175	SV defsv; / $_ */
153	SV *errsv;	176	SV errsv; / $@ */
		177	SV irssv; / $/ */
		178	SV irssv_sv; / real $/ cache */
154		179
155	#define VAR(name,type) type name;	180	#define VAR(name,type) type name;
156	# include "state.h"	181	# include "state.h"
157	#undef VAR	182	#undef VAR
158		183
…		…
244		269
245	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	270	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
246	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	271	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
247	else	272	else
248	{	273	{
249	#if 0	274	#if PREFER_PERL_FUNCTIONS
250	/* this is probably cleaner, but also slower? */	275	/* this is probably cleaner, but also slower? */
251	CV *cp = Perl_cv_clone (cv);	276	CV *cp = Perl_cv_clone (cv);
252	CvPADLIST (cv) = CvPADLIST (cp);	277	CvPADLIST (cv) = CvPADLIST (cp);
253	CvPADLIST (cp) = 0;	278	CvPADLIST (cp) = 0;
254	SvREFCNT_dec (cp);	279	SvREFCNT_dec (cp);
…		…
281	}	306	}
282		307
283	#define SB do {	308	#define SB do {
284	#define SE } while (0)	309	#define SE } while (0)
285		310
286	#define LOAD(state) load_state ((state))
287	#define SAVE(state,flags) save_state ((state),(flags))
288
289	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	311	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
290		312
291	static void	313	static void
292	load_state (Coro__State c)	314	load_perl (Coro__State c)
293	{	315	{
294	#define VAR(name,type) PL_ ## name = c->name;	316	#define VAR(name,type) PL_ ## name = c->name;
295	# include "state.h"	317	# include "state.h"
296	#undef VAR	318	#undef VAR
297		319
298	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	320	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
299	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	321	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
300	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	322	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		323	if (c->irssv)
		324	{
		325	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		326	SvREFCNT_dec (c->irssv);
		327	else
		328	{
		329	REPLACE_SV (PL_rs, c->irssv);
		330	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
		331	sv_setsv (c->irssv_sv, PL_rs);
		332	}
		333	}
301		334
302	{	335	{
303	dSP;	336	dSP;
304	CV *cv;	337	CV *cv;
305		338
…		…
314	PUTBACK;	347	PUTBACK;
315	}	348	}
316	}	349	}
317		350
318	static void	351	static void
319	save_state (Coro__State c, int flags)	352	save_perl (Coro__State c)
320	{	353	{
321	{	354	{
322	dSP;	355	dSP;
323	I32 cxix = cxstack_ix;	356	I32 cxix = cxstack_ix;
324	PERL_CONTEXT *ccstk = cxstack;	357	PERL_CONTEXT *ccstk = cxstack;
…		…
327	/*	360	/*
328	* the worst thing you can imagine happens first - we have to save	361	* the worst thing you can imagine happens first - we have to save
329	* (and reinitialize) all cv's in the whole callchain :(	362	* (and reinitialize) all cv's in the whole callchain :(
330	*/	363	*/
331		364
		365	EXTEND (SP, 3 + 1);
332	PUSHs (Nullsv);	366	PUSHs (Nullsv);
333	/* this loop was inspired by pp_caller */	367	/* this loop was inspired by pp_caller */
334	for (;;)	368	for (;;)
335	{	369	{
336	while (cxix >= 0)	370	while (cxix >= 0)
…		…
342	CV *cv = cx->blk_sub.cv;	376	CV *cv = cx->blk_sub.cv;
343		377
344	if (CvDEPTH (cv))	378	if (CvDEPTH (cv))
345	{	379	{
346	EXTEND (SP, 3);	380	EXTEND (SP, 3);
347
348	PUSHs ((SV *)CvPADLIST (cv));	381	PUSHs ((SV *)CvPADLIST (cv));
349	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	382	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
350	PUSHs ((SV *)cv);	383	PUSHs ((SV *)cv);
351		384
352	CvDEPTH (cv) = 0;	385	CvDEPTH (cv) = 0;
353	get_padlist (cv);	386	get_padlist (cv);
354	}	387	}
355	}	388	}
356	#ifdef CXt_FORMAT
357	else if (CxTYPE (cx) == CXt_FORMAT)
358	{
359	/* I never used formats, so how should I know how these are implemented? */
360	/* my bold guess is as a simple, plain sub... */
361	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
362	}
363	#endif
364	}	389	}
365		390
366	if (top_si->si_type == PERLSI_MAIN)	391	if (top_si->si_type == PERLSI_MAIN)
367	break;	392	break;
368		393
…		…
372	}	397	}
373		398
374	PUTBACK;	399	PUTBACK;
375	}	400	}
376		401
377	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	402	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
378	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	403	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
379	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	404	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		405	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
380		406
381	#define VAR(name,type)c->name = PL_ ## name;	407	#define VAR(name,type)c->name = PL_ ## name;
382	# include "state.h"	408	# include "state.h"
383	#undef VAR	409	#undef VAR
384	}	410	}
…		…
387	* allocate various perl stacks. This is an exact copy	413	* allocate various perl stacks. This is an exact copy
388	* of perl.c:init_stacks, except that it uses less memory	414	* of perl.c:init_stacks, except that it uses less memory
389	* on the (sometimes correct) assumption that coroutines do	415	* on the (sometimes correct) assumption that coroutines do
390	* not usually need a lot of stackspace.	416	* not usually need a lot of stackspace.
391	*/	417	*/
		418	#if PREFER_PERL_FUNCTIONS
		419	# define coro_init_stacks init_stacks
		420	#else
392	static void	421	static void
393	coro_init_stacks ()	422	coro_init_stacks ()
394	{	423	{
395	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	424	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
396	PL_curstackinfo->si_type = PERLSI_MAIN;	425	PL_curstackinfo->si_type = PERLSI_MAIN;
…		…
426	New(54,PL_retstack,16,OP*);	455	New(54,PL_retstack,16,OP*);
427	PL_retstack_ix = 0;	456	PL_retstack_ix = 0;
428	PL_retstack_max = 16;	457	PL_retstack_max = 16;
429	#endif	458	#endif
430	}	459	}
		460	#endif
431		461
432	/*	462	/*
433	* destroy the stacks, the callchain etc...	463	* destroy the stacks, the callchain etc...
434	*/	464	*/
435	static void	465	static void
436	coro_destroy_stacks ()	466	coro_destroy_stacks ()
437	{	467	{
438	if (!IN_DESTRUCT)	468	if (!IN_DESTRUCT)
439	{	469	{
440	/* is this ugly, I ask? */	470	/* restore all saved variables and stuff */
441	LEAVE_SCOPE (0);	471	LEAVE_SCOPE (0);
		472	assert (PL_tmps_floor == -1);
442		473
443	/* sure it is, but more important: is it correct?? :/ */	474	/* free all temporaries */
444	FREETMPS;	475	FREETMPS;
		476	assert (PL_tmps_ix == -1);
445		477
		478	/* unwind all extra stacks */
446	/POPSTACK_TO (PL_mainstack);//D//use/	479	POPSTACK_TO (PL_mainstack);
		480
		481	/* unwind main stack */
		482	dounwind (-1);
447	}	483	}
448		484
449	while (PL_curstackinfo->si_next)	485	while (PL_curstackinfo->si_next)
450	PL_curstackinfo = PL_curstackinfo->si_next;	486	PL_curstackinfo = PL_curstackinfo->si_next;
451		487
452	while (PL_curstackinfo)	488	while (PL_curstackinfo)
453	{	489	{
454	PERL_SI *p = PL_curstackinfo->si_prev;	490	PERL_SI *p = PL_curstackinfo->si_prev;
455		491
456	{ /D//remove/
457	dSP;
458	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
459	PUTBACK; /* possibly superfluous */
460	}
461
462	if (!IN_DESTRUCT)	492	if (!IN_DESTRUCT)
463	{
464	dounwind (-1);/D//remove/
465	SvREFCNT_dec (PL_curstackinfo->si_stack);	493	SvREFCNT_dec (PL_curstackinfo->si_stack);
466	}
467		494
468	Safefree (PL_curstackinfo->si_cxstack);	495	Safefree (PL_curstackinfo->si_cxstack);
469	Safefree (PL_curstackinfo);	496	Safefree (PL_curstackinfo);
470	PL_curstackinfo = p;	497	PL_curstackinfo = p;
471	}	498	}
…		…
497		524
498	{	525	{
499	dSP;	526	dSP;
500	LOGOP myop;	527	LOGOP myop;
501		528
502	/* I have no idea why this is needed, but it is */
503	PUSHMARK (SP);
504
505	SvREFCNT_dec (GvAV (PL_defgv));	529	SvREFCNT_dec (GvAV (PL_defgv));
506	GvAV (PL_defgv) = coro->args; coro->args = 0;	530	GvAV (PL_defgv) = coro->args; coro->args = 0;
507		531
508	Zero (&myop, 1, LOGOP);	532	Zero (&myop, 1, LOGOP);
509	myop.op_next = Nullop;	533	myop.op_next = Nullop;
510	myop.op_flags = OPf_WANT_VOID;	534	myop.op_flags = OPf_WANT_VOID;
511		535
512	PL_op = (OP *)&myop;
513
514	PUSHMARK (SP);	536	PUSHMARK (SP);
515	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	537	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
516	PUTBACK;	538	PUTBACK;
		539	PL_op = (OP *)&myop;
517	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	540	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
518	SPAGAIN;	541	SPAGAIN;
519	}	542	}
520		543
521	ENTER; /* necessary e.g. for dounwind */	544	ENTER; /* necessary e.g. for dounwind */
…		…
529	SvREFCNT_dec (coro_mortal);	552	SvREFCNT_dec (coro_mortal);
530	coro_mortal = 0;	553	coro_mortal = 0;
531	}	554	}
532	}	555	}
533		556
		557	/* inject a fake call to Coro::State::_cctx_init into the execution */
534	static void NOINLINE	558	static void NOINLINE
535	prepare_cctx (coro_cctx *cctx)	559	prepare_cctx (coro_cctx *cctx)
536	{	560	{
537	dSP;	561	dSP;
538	LOGOP myop;	562	LOGOP myop;
539		563
540	Zero (&myop, 1, LOGOP);	564	Zero (&myop, 1, LOGOP);
541	myop.op_next = PL_op;	565	myop.op_next = PL_op;
542	myop.op_flags = OPf_WANT_VOID;	566	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
543
544	sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx));
545		567
546	PUSHMARK (SP);	568	PUSHMARK (SP);
		569	EXTEND (SP, 2);
		570	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));
547	XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	571	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
548	PUTBACK;	572	PUTBACK;
		573	PL_op = (OP *)&myop;
549	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);	574	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
550	SPAGAIN;	575	SPAGAIN;
551	}	576	}
552		577
553	static void	578	static void
554	coro_run (void *arg)	579	coro_run (void *arg)
555	{	580	{
556	/* coro_run is the alternative epilogue of transfer() */	581	/* coro_run is the alternative tail of transfer(), so unlock here. */
557	UNLOCK;	582	UNLOCK;
558		583
559	/*	584	/*
560	* this is a _very_ stripped down perl interpreter ;)	585	* this is a _very_ stripped down perl interpreter ;)
561	*/	586	*/
…		…
563		588
564	/* inject call to cctx_init */	589	/* inject call to cctx_init */
565	prepare_cctx ((coro_cctx *)arg);	590	prepare_cctx ((coro_cctx *)arg);
566		591
567	/* somebody will hit me for both perl_run and PL_restartop */	592	/* somebody will hit me for both perl_run and PL_restartop */
		593	PL_restartop = PL_op;
568	perl_run (PL_curinterp);	594	perl_run (PL_curinterp);
569		595
570	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	596	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
571	abort ();	597	abort ();
572	}	598	}
…		…
576	{	602	{
577	coro_cctx *cctx;	603	coro_cctx *cctx;
578		604
579	++cctx_count;	605	++cctx_count;
580		606
581	New (0, cctx, 1, coro_cctx);	607	Newz (0, cctx, 1, coro_cctx);
582		608
583	#if HAVE_MMAP	609	#if HAVE_MMAP
584		610
585	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	611	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
586	/* mmap suppsedly does allocate-on-write for us */	612	/* mmap supposedly does allocate-on-write for us */
587	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	613	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
588		614
589	if (cctx->sptr == (void *)-1)	615	if (cctx->sptr == (void *)-1)
590	{	616	{
591	perror ("FATAL: unable to mmap stack for coroutine");	617	perror ("FATAL: unable to mmap stack for coroutine");
…		…
681	cctx_first = cctx;	707	cctx_first = cctx;
682	}	708	}
683		709
684	/* never call directly, always through the coro_state_transfer global variable */	710	/* never call directly, always through the coro_state_transfer global variable */
685	static void NOINLINE	711	static void NOINLINE
686	transfer (struct coro prev, struct coro next, int flags)	712	transfer (struct coro prev, struct coro next)
687	{	713	{
688	dSTACKLEVEL;	714	dSTACKLEVEL;
689		715
690	/* sometimes transfer is only called to set idle_sp */	716	/* sometimes transfer is only called to set idle_sp */
691	if (flags == TRANSFER_SET_STACKLEVEL)	717	if (!next)
		718	{
692	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	719	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
		720	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
		721	}
693	else if (prev != next)	722	else if (prev != next)
694	{	723	{
695	coro_cctx *prev__cctx;	724	coro_cctx *prev__cctx;
696		725
697	if (prev->flags & CF_NEW)	726	if (prev->flags & CF_NEW)
…		…
708	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");	737	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
709		738
710	if (next->flags & CF_RUNNING)	739	if (next->flags & CF_RUNNING)
711	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	740	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
712		741
		742	if (next->flags & CF_DESTROYED)
		743	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		744
713	prev->flags &= ~CF_RUNNING;	745	prev->flags &= ~CF_RUNNING;
714	next->flags \|= CF_RUNNING;	746	next->flags \|= CF_RUNNING;
715		747
716	LOCK;	748	LOCK;
717		749
718	if (next->flags & CF_NEW)	750	if (next->flags & CF_NEW)
719	{	751	{
720	/* need to start coroutine */	752	/* need to start coroutine */
721	next->flags &= ~CF_NEW;	753	next->flags &= ~CF_NEW;
722	/* first get rid of the old state */	754	/* first get rid of the old state */
723	SAVE (prev, -1);	755	save_perl (prev);
724	/* setup coroutine call */	756	/* setup coroutine call */
725	setup_coro (next);	757	setup_coro (next);
726	/* need a new stack */	758	/* need a new stack */
727	assert (!next->stack);	759	assert (!next->cctx);
728	}	760	}
729	else	761	else
730	{	762	{
731	/* coroutine already started */	763	/* coroutine already started */
732	SAVE (prev, flags);	764	save_perl (prev);
733	LOAD (next);	765	load_perl (next);
734	}	766	}
735		767
736	prev__cctx = prev->cctx;	768	prev__cctx = prev->cctx;
737		769
738	/* possibly "free" the cctx */	770	/* possibly "free" the cctx */
739	if (prev__cctx->idle_sp == STACKLEVEL)	771	if (prev__cctx->idle_sp == STACKLEVEL)
740	{	772	{
741	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	773	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
742	assert (PL_top_env == prev__cctx->top_env);	774	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
743		775
744	prev->cctx = 0;	776	prev->cctx = 0;
745		777
746	cctx_put (prev__cctx);	778	cctx_put (prev__cctx);
747	prev__cctx->inuse = 0;	779	prev__cctx->inuse = 0;
…		…
760	PL_top_env = next->cctx->top_env;	792	PL_top_env = next->cctx->top_env;
761	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	793	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
762	}	794	}
763		795
764	free_coro_mortal ();	796	free_coro_mortal ();
765
766	UNLOCK;	797	UNLOCK;
767	}	798	}
768	}	799	}
769		800
770	struct transfer_args	801	struct transfer_args
771	{	802	{
772	struct coro prev, next;	803	struct coro prev, next;
773	int flags;
774	};	804	};
775		805
776	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)	806	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
777		807
778	static void	808	static int
779	coro_state_destroy (struct coro *coro)	809	coro_state_destroy (struct coro *coro)
780	{	810	{
781	if (coro->refcnt--)	811	if (coro->flags & CF_DESTROYED)
782	return;	812	return 0;
		813
		814	coro->flags \|= CF_DESTROYED;
783		815
784	if (coro->mainstack && coro->mainstack != main_mainstack)	816	if (coro->mainstack && coro->mainstack != main_mainstack)
785	{	817	{
		818	assert (!(coro->flags & CF_RUNNING));
		819
786	struct coro temp;	820	struct coro temp;
		821	Zero (&temp, 1, struct coro);
		822	temp.save = CORO_SAVE_ALL;
787		823
788	if (coro->flags & CF_RUNNING)	824	if (coro->flags & CF_RUNNING)
789	croak ("FATAL: tried to destroy currently running coroutine");	825	croak ("FATAL: tried to destroy currently running coroutine");
790		826
791	SAVE ((&temp), TRANSFER_SAVE_ALL);	827	save_perl (&temp);
792	LOAD (coro);	828	load_perl (coro);
793		829
794	coro_destroy_stacks ();	830	coro_destroy_stacks ();
795		831
796	LOAD ((&temp)); /* this will get rid of defsv etc.. */	832	load_perl (&temp); /* this will get rid of defsv etc.. */
797		833
798	coro->mainstack = 0;	834	coro->mainstack = 0;
799	}	835	}
800		836
801	cctx_destroy (coro->cctx);	837	cctx_destroy (coro->cctx);
802	SvREFCNT_dec (coro->args);	838	SvREFCNT_dec (coro->args);
803	Safefree (coro);	839
		840	return 1;
804	}	841	}
805		842
806	static int	843	static int
807	coro_state_clear (pTHX_ SV sv, MAGIC mg)	844	coro_state_free (pTHX_ SV sv, MAGIC mg)
808	{	845	{
809	struct coro coro = (struct coro )mg->mg_ptr;	846	struct coro coro = (struct coro )mg->mg_ptr;
810	mg->mg_ptr = 0;	847	mg->mg_ptr = 0;
811		848
		849	if (--coro->refcnt < 0)
		850	{
812	coro_state_destroy (coro);	851	coro_state_destroy (coro);
		852	Safefree (coro);
		853	}
813		854
814	return 0;	855	return 0;
815	}	856	}
816		857
817	static int	858	static int
…		…
824	return 0;	865	return 0;
825	}	866	}
826		867
827	static MGVTBL coro_state_vtbl = {	868	static MGVTBL coro_state_vtbl = {
828	0, 0, 0, 0,	869	0, 0, 0, 0,
829	coro_state_clear,	870	coro_state_free,
830	0,	871	0,
831	#ifdef MGf_DUP	872	#ifdef MGf_DUP
832	coro_state_dup,	873	coro_state_dup,
833	#else	874	#else
834	# define MGf_DUP 0	875	# define MGf_DUP 0
…		…
856	assert (mg->mg_type == PERL_MAGIC_ext);	897	assert (mg->mg_type == PERL_MAGIC_ext);
857	return (struct coro *)mg->mg_ptr;	898	return (struct coro *)mg->mg_ptr;
858	}	899	}
859		900
860	static void	901	static void
861	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)	902	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)
862	{	903	{
863	ta->prev = SvSTATE (prev);	904	ta->prev = SvSTATE (prev_sv);
864	ta->next = SvSTATE (next);	905	ta->next = SvSTATE (next_sv);
865	ta->flags = flags;
866	}	906	}
867		907
868	static void	908	static void
869	api_transfer (SV prev, SV next, int flags)	909	api_transfer (SV prev_sv, SV next_sv)
870	{	910	{
871	struct transfer_args ta;	911	struct transfer_args ta;
872		912
873	prepare_transfer (&ta, prev, next, flags);	913	prepare_transfer (&ta, prev_sv, next_sv);
874	TRANSFER (ta);	914	TRANSFER (ta);
		915	}
		916
		917	static int
		918	api_save (SV *coro_sv, int new_save)
		919	{
		920	struct coro *coro = SvSTATE (coro_sv);
		921	int old_save = coro->save;
		922
		923	if (new_save >= 0)
		924	coro->save = new_save;
		925
		926	return old_save;
875	}	927	}
876		928
877	/ Coro ******************************************************************/	929	/ Coro ******************************************************************/
878		930
879	#define PRIO_MAX 3	931	#define PRIO_MAX 3
…		…
925	coro = SvSTATE (coro_sv);	977	coro = SvSTATE (coro_sv);
926		978
927	if (coro->flags & CF_READY)	979	if (coro->flags & CF_READY)
928	return 0;	980	return 0;
929		981
930	#if 0 /* this is actually harmless */
931	if (coro->flags & CF_RUNNING)
932	croak ("Coro::ready called on currently running coroutine");
933	#endif
934
935	coro->flags \|= CF_READY;	982	coro->flags \|= CF_READY;
936		983
937	LOCK;	984	LOCK;
938	coro_enq (SvREFCNT_inc (coro_sv));	985	coro_enq (SvREFCNT_inc (coro_sv));
939	UNLOCK;	986	UNLOCK;
…		…
942	}	989	}
943		990
944	static int	991	static int
945	api_is_ready (SV *coro_sv)	992	api_is_ready (SV *coro_sv)
946	{	993	{
947	return !!SvSTATE (coro_sv)->flags & CF_READY;	994	return !!(SvSTATE (coro_sv)->flags & CF_READY);
948	}	995	}
949		996
950	static void	997	static void
951	prepare_schedule (struct transfer_args *ta)	998	prepare_schedule (struct transfer_args *ta)
952	{	999	{
953	SV prev, next;	1000	SV prev_sv, next_sv;
954		1001
955	for (;;)	1002	for (;;)
956	{	1003	{
957	LOCK;	1004	LOCK;
958	next = coro_deq (PRIO_MIN);	1005	next_sv = coro_deq (PRIO_MIN);
959	UNLOCK;	1006	UNLOCK;
960		1007
		1008	/* nothing to schedule: call the idle handler */
961	if (next)	1009	if (!next_sv)
962	break;
963
964	{	1010	{
965	dSP;	1011	dSP;
966		1012
967	ENTER;	1013	ENTER;
968	SAVETMPS;	1014	SAVETMPS;
969		1015
970	PUSHMARK (SP);	1016	PUSHMARK (SP);
971	PUTBACK;	1017	PUTBACK;
972	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1018	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
973		1019
974	FREETMPS;	1020	FREETMPS;
975	LEAVE;	1021	LEAVE;
		1022	continue;
976	}	1023	}
977	}
978		1024
979	prev = SvRV (coro_current);	1025	ta->next = SvSTATE (next_sv);
980	SvRV_set (coro_current, next);	1026
		1027	/* cannot transfer to destroyed coros, skip and look for next */
		1028	if (ta->next->flags & CF_DESTROYED)
		1029	{
		1030	SvREFCNT_dec (next_sv);
		1031	continue;
		1032	}
		1033
		1034	break;
		1035	}
981		1036
982	/* free this only after the transfer */	1037	/* free this only after the transfer */
		1038	prev_sv = SvRV (coro_current);
		1039	SvRV_set (coro_current, next_sv);
		1040	ta->prev = SvSTATE (prev_sv);
		1041
		1042	assert (ta->next->flags & CF_READY);
		1043	ta->next->flags &= ~CF_READY;
		1044
983	LOCK;	1045	LOCK;
984	free_coro_mortal ();	1046	free_coro_mortal ();
		1047	coro_mortal = prev_sv;
985	UNLOCK;	1048	UNLOCK;
986	coro_mortal = prev;
987
988	assert (!SvROK(prev));//D
989	assert (!SvROK(next));//D
990
991	ta->prev = SvSTATE (prev);
992	ta->next = SvSTATE (next);
993	ta->flags = TRANSFER_SAVE_ALL;
994
995	assert (ta->flags & CF_READY);
996	ta->next->flags &= ~CF_READY;
997	}	1049	}
998		1050
999	static void	1051	static void
1000	prepare_cede (struct transfer_args *ta)	1052	prepare_cede (struct transfer_args *ta)
1001	{	1053	{
1002	api_ready (coro_current);	1054	api_ready (coro_current);
1003
1004	prepare_schedule (ta);	1055	prepare_schedule (ta);
		1056	}
		1057
		1058	static int
		1059	prepare_cede_notself (struct transfer_args *ta)
		1060	{
		1061	if (coro_nready)
		1062	{
		1063	SV *prev = SvRV (coro_current);
		1064	prepare_schedule (ta);
		1065	api_ready (prev);
		1066	return 1;
		1067	}
		1068	else
		1069	return 0;
1005	}	1070	}
1006		1071
1007	static void	1072	static void
1008	api_schedule (void)	1073	api_schedule (void)
1009	{	1074	{
…		…
1011		1076
1012	prepare_schedule (&ta);	1077	prepare_schedule (&ta);
1013	TRANSFER (ta);	1078	TRANSFER (ta);
1014	}	1079	}
1015		1080
1016	static void	1081	static int
1017	api_cede (void)	1082	api_cede (void)
1018	{	1083	{
1019	struct transfer_args ta;	1084	struct transfer_args ta;
1020		1085
1021	prepare_cede (&ta);	1086	prepare_cede (&ta);
		1087
		1088	if (ta.prev != ta.next)
		1089	{
1022	TRANSFER (ta);	1090	TRANSFER (ta);
		1091	return 1;
		1092	}
		1093	else
		1094	return 0;
		1095	}
		1096
		1097	static int
		1098	api_cede_notself (void)
		1099	{
		1100	struct transfer_args ta;
		1101
		1102	if (prepare_cede_notself (&ta))
		1103	{
		1104	TRANSFER (ta);
		1105	return 1;
		1106	}
		1107	else
		1108	return 0;
1023	}	1109	}
1024		1110
1025	MODULE = Coro::State PACKAGE = Coro::State	1111	MODULE = Coro::State PACKAGE = Coro::State
1026		1112
1027	PROTOTYPES: DISABLE	1113	PROTOTYPES: DISABLE
…		…
1033	#endif	1119	#endif
1034	BOOT_PAGESIZE;	1120	BOOT_PAGESIZE;
1035		1121
1036	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1122	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1037		1123
1038	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1124	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1039	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1125	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1040	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1126	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
		1127	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1128	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1041		1129
1042	main_mainstack = PL_mainstack;	1130	main_mainstack = PL_mainstack;
1043		1131
1044	coroapi.ver = CORO_API_VERSION;	1132	coroapi.ver = CORO_API_VERSION;
1045	coroapi.transfer = api_transfer;	1133	coroapi.transfer = api_transfer;
…		…
1055	HV *hv;	1143	HV *hv;
1056	int i;	1144	int i;
1057		1145
1058	Newz (0, coro, 1, struct coro);	1146	Newz (0, coro, 1, struct coro);
1059	coro->args = newAV ();	1147	coro->args = newAV ();
		1148	coro->save = CORO_SAVE_ALL;
1060	coro->flags = CF_NEW;	1149	coro->flags = CF_NEW;
1061		1150
1062	hv = newHV ();	1151	hv = newHV ();
1063	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1152	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1064	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1153	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1065		1154
1066	for (i = 1; i < items; i++)	1155	for (i = 1; i < items; i++)
1067	av_push (coro->args, newSVsv (ST (i)));	1156	av_push (coro->args, newSVsv (ST (i)));
1068	}	1157	}
1069	OUTPUT:	1158	OUTPUT:
		1159	RETVAL
		1160
		1161	int
		1162	save (SV *coro, int new_save = -1)
		1163	CODE:
		1164	RETVAL = api_save (coro, new_save);
		1165	OUTPUT:
1070	RETVAL	1166	RETVAL
1071		1167
1072	void	1168	void
1073	_set_stacklevel (...)	1169	_set_stacklevel (...)
1074	ALIAS:	1170	ALIAS:
1075	Coro::State::transfer = 1	1171	Coro::State::transfer = 1
1076	Coro::schedule = 2	1172	Coro::schedule = 2
1077	Coro::cede = 3	1173	Coro::cede = 3
		1174	Coro::cede_notself = 4
1078	CODE:	1175	CODE:
1079	{	1176	{
1080	struct transfer_args ta;	1177	struct transfer_args ta;
1081		1178
1082	switch (ix)	1179	switch (ix)
1083	{	1180	{
1084	case 0:	1181	case 0:
1085	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1182	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1086	ta.next = 0;	1183	ta.next = 0;
1087	ta.flags = TRANSFER_SET_STACKLEVEL;
1088	break;	1184	break;
1089		1185
1090	case 1:	1186	case 1:
1091	if (items != 3)	1187	if (items != 2)
1092	croak ("Coro::State::transfer (prev,next,flags) expects three arguments, not %d", items);	1188	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1093		1189
1094	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));	1190	prepare_transfer (&ta, ST (0), ST (1));
1095	break;	1191	break;
1096		1192
1097	case 2:	1193	case 2:
1098	prepare_schedule (&ta);	1194	prepare_schedule (&ta);
1099	break;	1195	break;
1100		1196
1101	case 3:	1197	case 3:
1102	prepare_cede (&ta);	1198	prepare_cede (&ta);
1103	break;	1199	break;
		1200
		1201	case 4:
		1202	if (!prepare_cede_notself (&ta))
		1203	XSRETURN_EMPTY;
		1204
		1205	break;
1104	}	1206	}
1105		1207
		1208	BARRIER;
1106	TRANSFER (ta);	1209	TRANSFER (ta);
1107	}
1108		1210
1109	void	1211	if (GIMME_V != G_VOID && ta.next != ta.prev)
1110	_clone_state_from (SV dst, SV src)	1212	XSRETURN_YES;
		1213	}
		1214
		1215	bool
		1216	_destroy (SV *coro_sv)
1111	CODE:	1217	CODE:
1112	{	1218	RETVAL = coro_state_destroy (SvSTATE (coro_sv));
1113	struct coro *coro_src = SvSTATE (src);	1219	OUTPUT:
1114		1220	RETVAL
1115	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1116
1117	++coro_src->refcnt;
1118	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1119	}
1120		1221
1121	void	1222	void
1122	_exit (code)	1223	_exit (code)
1123	int code	1224	int code
1124	PROTOTYPE: $	1225	PROTOTYPE: $
…		…
1161	coro_ready[i] = newAV ();	1262	coro_ready[i] = newAV ();
1162		1263
1163	{	1264	{
1164	SV *sv = perl_get_sv("Coro::API", 1);	1265	SV *sv = perl_get_sv("Coro::API", 1);
1165		1266
1166	coroapi.schedule = api_schedule;	1267	coroapi.schedule = api_schedule;
		1268	coroapi.save = api_save;
1167	coroapi.cede = api_cede;	1269	coroapi.cede = api_cede;
		1270	coroapi.cede_notself = api_cede_notself;
1168	coroapi.ready = api_ready;	1271	coroapi.ready = api_ready;
1169	coroapi.is_ready = api_is_ready;	1272	coroapi.is_ready = api_is_ready;
1170	coroapi.nready = &coro_nready;	1273	coroapi.nready = &coro_nready;
1171	coroapi.current = coro_current;	1274	coroapi.current = coro_current;
1172		1275
1173	GCoroAPI = &coroapi;	1276	GCoroAPI = &coroapi;
1174	sv_setiv (sv, (IV)&coroapi);	1277	sv_setiv (sv, (IV)&coroapi);
1175	SvREADONLY_on (sv);	1278	SvREADONLY_on (sv);
1176	}	1279	}
1177	}	1280	}
		1281
		1282	void
		1283	_set_current (SV *current)
		1284	PROTOTYPE: $
		1285	CODE:
		1286	SvREFCNT_dec (SvRV (coro_current));
		1287	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1178		1288
1179	int	1289	int
1180	prio (Coro::State coro, int newprio = 0)	1290	prio (Coro::State coro, int newprio = 0)
1181	ALIAS:	1291	ALIAS:
1182	nice = 1	1292	nice = 1
…		…
1185	RETVAL = coro->prio;	1295	RETVAL = coro->prio;
1186		1296
1187	if (items > 1)	1297	if (items > 1)
1188	{	1298	{
1189	if (ix)	1299	if (ix)
1190	newprio += coro->prio;	1300	newprio = coro->prio - newprio;
1191		1301
1192	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1302	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
1193	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1303	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
1194		1304
1195	coro->prio = newprio;	1305	coro->prio = newprio;
1196	}	1306	}
1197	}	1307	}
		1308	OUTPUT:
		1309	RETVAL
1198		1310
1199	SV *	1311	SV *
1200	ready (SV *self)	1312	ready (SV *self)
1201	PROTOTYPE: $	1313	PROTOTYPE: $
1202	CODE:	1314	CODE:
…		…
1218	CODE:	1330	CODE:
1219	RETVAL = coro_nready;	1331	RETVAL = coro_nready;
1220	OUTPUT:	1332	OUTPUT:
1221	RETVAL	1333	RETVAL
1222		1334
1223	void
1224	_set_current (SV *current)
1225	PROTOTYPE: $
1226	CODE:
1227	SvREFCNT_dec (SvRV (coro_current));
1228	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1229
1230	MODULE = Coro::State PACKAGE = Coro::AIO	1335	MODULE = Coro::State PACKAGE = Coro::AIO
1231		1336
1232	SV *	1337	SV *
1233	_get_state ()	1338	_get_state ()
1234	CODE:	1339	CODE:
1235	{	1340	{
1236	struct {	1341	struct io_state *data;
1237	int errorno;
1238	int laststype;
1239	int laststatval;
1240	Stat_t statcache;
1241	} data;
1242		1342
		1343	RETVAL = newSV (sizeof (struct io_state));
		1344	data = (struct io_state *)SvPVX (RETVAL);
		1345	SvCUR_set (RETVAL, sizeof (struct io_state));
		1346	SvPOK_only (RETVAL);
		1347
1243	data.errorno = errno;	1348	data->errorno = errno;
1244	data.laststype = PL_laststype;	1349	data->laststype = PL_laststype;
1245	data.laststatval = PL_laststatval;	1350	data->laststatval = PL_laststatval;
1246	data.statcache = PL_statcache;	1351	data->statcache = PL_statcache;
1247
1248	RETVAL = newSVpvn ((char *)&data, sizeof data);
1249	}	1352	}
1250	OUTPUT:	1353	OUTPUT:
1251	RETVAL	1354	RETVAL
1252		1355
1253	void	1356	void
1254	_set_state (char *data_)	1357	_set_state (char *data_)
1255	PROTOTYPE: $	1358	PROTOTYPE: $
1256	CODE:	1359	CODE:
1257	{	1360	{
1258	struct {	1361	struct io_state data = (void )data_;
1259	int errorno;
1260	int laststype;
1261	int laststatval;
1262	Stat_t statcache;
1263	} data = (void )data_;
1264		1362
1265	errno = data->errorno;	1363	errno = data->errorno;
1266	PL_laststype = data->laststype;	1364	PL_laststype = data->laststype;
1267	PL_laststatval = data->laststatval;	1365	PL_laststatval = data->laststatval;
1268	PL_statcache = data->statcache;	1366	PL_statcache = data->statcache;
1269	}	1367	}
		1368

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Comparing Coro/Coro/State.xs (file contents): Revision 1.119 by root, Sat Dec 2 15:41:28 2006 UTC vs. Revision 1.136 by root, Fri Jan 12 01:05:55 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.119 by root, Sat Dec 2 15:41:28 2006 UTC vs.
Revision 1.136 by root, Fri Jan 12 01:05:55 2007 UTC