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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.121 by root, Sat Dec 2 20:40:25 2006 UTC vs.
Revision 1.145 by root, Mon Mar 12 21:40:14 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 CORO_USE_VALGRIND
		37	# include <valgrind/valgrind.h>
		38	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
		39	#else
		40	# define REGISTER_STACK(cctx,start,end)
		41	#endif
		42
		43	/* the maximum number of idle cctx that will be pooled */
		44	#define MAX_IDLE_CCTX 8
		45
		46	#define PERL_VERSION_ATLEAST(a,b,c) \
		47	(PERL_REVISION > (a) \
		48	\|\| (PERL_REVISION == (a) \
		49	&& (PERL_VERSION > (b) \
		50	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
		51
		52	#if !PERL_VERSION_ATLEAST (5,6,0)
		53	# ifndef PL_ppaddr
		54	# define PL_ppaddr ppaddr
		55	# endif
		56	# ifndef call_sv
		57	# define call_sv perl_call_sv
		58	# endif
		59	# ifndef get_sv
		60	# define get_sv perl_get_sv
		61	# endif
		62	# ifndef get_cv
		63	# define get_cv perl_get_cv
		64	# endif
		65	# ifndef IS_PADGV
		66	# define IS_PADGV(v) 0
		67	# endif
		68	# ifndef IS_PADCONST
		69	# define IS_PADCONST(v) 0
		70	# endif
		71	#endif
		72
		73	/* 5.8.7 */
		74	#ifndef SvRV_set
		75	# define SvRV_set(s,v) SvRV(s) = (v)
		76	#endif
		77
		78	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
		79	# undef CORO_STACKGUARD
		80	#endif
		81
		82	#ifndef CORO_STACKGUARD
		83	# define CORO_STACKGUARD 0
		84	#endif
		85
		86	/* prefer perl internal functions over our own? */
		87	#ifndef CORO_PREFER_PERL_FUNCTIONS
		88	# define CORO_PREFER_PERL_FUNCTIONS 0
		89	#endif
		90
77	/* The next macro should declare a variable stacklevel that contains and approximation	91	/* 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	92	* to the current C stack pointer. Its property is that it changes with each call
79	* and should be unique. */	93	* and should be unique. */
80	#define dSTACKLEVEL int stacklevel	94	#define dSTACKLEVEL int stacklevel
81	#define STACKLEVEL ((void *)&stacklevel)	95	#define STACKLEVEL ((void *)&stacklevel)
82		96
83	#define IN_DESTRUCT (PL_main_cv == Nullcv)	97	#define IN_DESTRUCT (PL_main_cv == Nullcv)
84		98
85	#if __GNUC__ >= 3	99	#if __GNUC__ >= 3
86	# define attribute(x) __attribute__(x)	100	# define attribute(x) __attribute__(x)
		101	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
87	#else	102	#else
88	# define attribute(x)	103	# define attribute(x)
		104	# define BARRIER
89	#endif	105	#endif
90		106
91	#define NOINLINE attribute ((noinline))	107	#define NOINLINE attribute ((noinline))
92		108
93	#include "CoroAPI.h"	109	#include "CoroAPI.h"
94
95	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
96		110
97	#ifdef USE_ITHREADS	111	#ifdef USE_ITHREADS
98	static perl_mutex coro_mutex;	112	static perl_mutex coro_mutex;
99	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	113	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
100	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	114	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
101	#else	115	#else
102	# define LOCK (void)0	116	# define LOCK (void)0
103	# define UNLOCK (void)0	117	# define UNLOCK (void)0
104	#endif	118	#endif
105		119
		120	/* helper storage struct for Coro::AIO */
106	struct io_state	121	struct io_state
107	{	122	{
108	int errorno;	123	int errorno;
109	I32 laststype;	124	I32 laststype;
110	int laststatval;	125	int laststatval;
111	Stat_t statcache;	126	Stat_t statcache;
112	};	127	};
113		128
		129	static size_t coro_stacksize = CORO_STACKSIZE;
114	static struct CoroAPI coroapi;	130	static struct CoroAPI coroapi;
115	static AV main_mainstack; / used to differentiate between $main and others */	131	static AV main_mainstack; / used to differentiate between $main and others */
116	static HV coro_state_stash, coro_stash;	132	static HV coro_state_stash, coro_stash;
117	static SV coro_mortal; / will be freed after next transfer */	133	static SV coro_mortal; / will be freed after next transfer */
118		134
…		…
123	typedef struct coro_cctx {	139	typedef struct coro_cctx {
124	struct coro_cctx *next;	140	struct coro_cctx *next;
125		141
126	/* the stack */	142	/* the stack */
127	void *sptr;	143	void *sptr;
128	long ssize; /* positive == mmap, otherwise malloc */	144	size_t ssize;
129		145
130	/* cpu state */	146	/* cpu state */
131	void idle_sp; / sp of top-level transfer/schedule/cede call */	147	void idle_sp; / sp of top-level transfer/schedule/cede call */
		148	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
132	JMPENV *top_env;	149	JMPENV *top_env;
133	coro_context cctx;	150	coro_context cctx;
134		151
135	int inuse;
136
137	#if USE_VALGRIND	152	#if CORO_USE_VALGRIND
138	int valgrind_id;	153	int valgrind_id;
139	#endif	154	#endif
		155	char inuse, mapped;
140	} coro_cctx;	156	} coro_cctx;
141		157
142	enum {	158	enum {
143	CF_RUNNING = 0x0001, /* coroutine is running */	159	CF_RUNNING = 0x0001, /* coroutine is running */
144	CF_READY = 0x0002, /* coroutine is ready */	160	CF_READY = 0x0002, /* coroutine is ready */
145	CF_NEW = 0x0004, /* ahs never been switched to */	161	CF_NEW = 0x0004, /* has never been switched to */
		162	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
146	};	163	};
147		164
148	/* this is a structure representing a perl-level coroutine */	165	/* this is a structure representing a perl-level coroutine */
149	struct coro {	166	struct coro {
150	/* the c coroutine allocated to this perl coroutine, if any */	167	/* the c coroutine allocated to this perl coroutine, if any */
151	coro_cctx *cctx;	168	coro_cctx *cctx;
152		169
153	/* data associated with this coroutine (initial args) */	170	/* data associated with this coroutine (initial args) */
154	AV *args;	171	AV *args;
155	int refcnt;	172	int refcnt;
156	int flags;	173	int save; /* CORO_SAVE flags */
		174	int flags; /* CF_ flags */
157		175
158	/* optionally saved, might be zero */	176	/* optionally saved, might be zero */
159	AV *defav;	177	AV defav; / @_ */
160	SV *defsv;	178	SV defsv; / $_ */
161	SV *errsv;	179	SV errsv; / $@ */
		180	SV irssv; / $/ */
		181	SV irssv_sv; / real $/ cache */
162		182
163	#define VAR(name,type) type name;	183	#define VAR(name,type) type name;
164	# include "state.h"	184	# include "state.h"
165	#undef VAR	185	#undef VAR
166		186
…		…
168	int prio;	188	int prio;
169	};	189	};
170		190
171	typedef struct coro *Coro__State;	191	typedef struct coro *Coro__State;
172	typedef struct coro *Coro__State_or_hashref;	192	typedef struct coro *Coro__State_or_hashref;
		193
		194	/ Coro ******************************************************************/
		195
		196	#define PRIO_MAX 3
		197	#define PRIO_HIGH 1
		198	#define PRIO_NORMAL 0
		199	#define PRIO_LOW -1
		200	#define PRIO_IDLE -3
		201	#define PRIO_MIN -4
		202
		203	/* for Coro.pm */
		204	static SV *coro_current;
		205	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
		206	static int coro_nready;
		207
		208	/ lowlevel stuff ********************************************************/
173		209
174	static AV *	210	static AV *
175	coro_clone_padlist (CV *cv)	211	coro_clone_padlist (CV *cv)
176	{	212	{
177	AV *padlist = CvPADLIST (cv);	213	AV *padlist = CvPADLIST (cv);
…		…
252		288
253	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	289	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
254	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	290	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
255	else	291	else
256	{	292	{
257	#if 0	293	#if CORO_PREFER_PERL_FUNCTIONS
258	/* this is probably cleaner, but also slower? */	294	/* this is probably cleaner, but also slower? */
259	CV *cp = Perl_cv_clone (cv);	295	CV *cp = Perl_cv_clone (cv);
260	CvPADLIST (cv) = CvPADLIST (cp);	296	CvPADLIST (cv) = CvPADLIST (cp);
261	CvPADLIST (cp) = 0;	297	CvPADLIST (cp) = 0;
262	SvREFCNT_dec (cp);	298	SvREFCNT_dec (cp);
…		…
286	av_extend (av, AvMAX (av) + 1);	322	av_extend (av, AvMAX (av) + 1);
287		323
288	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	324	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
289	}	325	}
290		326
		327	/ load & save, init *****************************************************/
		328
291	#define SB do {	329	#define SB do {
292	#define SE } while (0)	330	#define SE } while (0)
293		331
294	#define LOAD(state) load_state ((state))
295	#define SAVE(state,flags) save_state ((state),(flags))
296
297	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	332	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
298		333
299	static void	334	static void
300	load_state (Coro__State c)	335	load_perl (Coro__State c)
301	{	336	{
302	#define VAR(name,type) PL_ ## name = c->name;	337	#define VAR(name,type) PL_ ## name = c->name;
303	# include "state.h"	338	# include "state.h"
304	#undef VAR	339	#undef VAR
305		340
306	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	341	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
307	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	342	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
308	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	343	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		344	if (c->irssv)
		345	{
		346	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		347	SvREFCNT_dec (c->irssv);
		348	else
		349	{
		350	REPLACE_SV (PL_rs, c->irssv);
		351	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
		352	sv_setsv (c->irssv_sv, PL_rs);
		353	}
		354	}
309		355
310	{	356	{
311	dSP;	357	dSP;
312	CV *cv;	358	CV *cv;
313		359
…		…
319	CvPADLIST (cv) = (AV *)POPs;	365	CvPADLIST (cv) = (AV *)POPs;
320	}	366	}
321		367
322	PUTBACK;	368	PUTBACK;
323	}	369	}
		370	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
324	}	371	}
325		372
326	static void	373	static void
327	save_state (Coro__State c, int flags)	374	save_perl (Coro__State c)
328	{	375	{
		376	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
329	{	377	{
330	dSP;	378	dSP;
331	I32 cxix = cxstack_ix;	379	I32 cxix = cxstack_ix;
332	PERL_CONTEXT *ccstk = cxstack;	380	PERL_CONTEXT *ccstk = cxstack;
333	PERL_SI *top_si = PL_curstackinfo;	381	PERL_SI *top_si = PL_curstackinfo;
…		…
335	/*	383	/*
336	* the worst thing you can imagine happens first - we have to save	384	* the worst thing you can imagine happens first - we have to save
337	* (and reinitialize) all cv's in the whole callchain :(	385	* (and reinitialize) all cv's in the whole callchain :(
338	*/	386	*/
339		387
		388	EXTEND (SP, 3 + 1);
340	PUSHs (Nullsv);	389	PUSHs (Nullsv);
341	/* this loop was inspired by pp_caller */	390	/* this loop was inspired by pp_caller */
342	for (;;)	391	for (;;)
343	{	392	{
344	while (cxix >= 0)	393	while (cxix >= 0)
…		…
350	CV *cv = cx->blk_sub.cv;	399	CV *cv = cx->blk_sub.cv;
351		400
352	if (CvDEPTH (cv))	401	if (CvDEPTH (cv))
353	{	402	{
354	EXTEND (SP, 3);	403	EXTEND (SP, 3);
355
356	PUSHs ((SV *)CvPADLIST (cv));	404	PUSHs ((SV *)CvPADLIST (cv));
357	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	405	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
358	PUSHs ((SV *)cv);	406	PUSHs ((SV *)cv);
359		407
360	CvDEPTH (cv) = 0;	408	CvDEPTH (cv) = 0;
361	get_padlist (cv);	409	get_padlist (cv);
362	}	410	}
363	}	411	}
364	#ifdef CXt_FORMAT
365	else if (CxTYPE (cx) == CXt_FORMAT)
366	{
367	/* I never used formats, so how should I know how these are implemented? */
368	/* my bold guess is as a simple, plain sub... */
369	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
370	}
371	#endif
372	}	412	}
373		413
374	if (top_si->si_type == PERLSI_MAIN)	414	if (top_si->si_type == PERLSI_MAIN)
375	break;	415	break;
376		416
…		…
380	}	420	}
381		421
382	PUTBACK;	422	PUTBACK;
383	}	423	}
384		424
385	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	425	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
386	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	426	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
387	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	427	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		428	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
388		429
389	#define VAR(name,type)c->name = PL_ ## name;	430	#define VAR(name,type)c->name = PL_ ## name;
390	# include "state.h"	431	# include "state.h"
391	#undef VAR	432	#undef VAR
392	}	433	}
…		…
395	* allocate various perl stacks. This is an exact copy	436	* allocate various perl stacks. This is an exact copy
396	* of perl.c:init_stacks, except that it uses less memory	437	* of perl.c:init_stacks, except that it uses less memory
397	* on the (sometimes correct) assumption that coroutines do	438	* on the (sometimes correct) assumption that coroutines do
398	* not usually need a lot of stackspace.	439	* not usually need a lot of stackspace.
399	*/	440	*/
		441	#if CORO_PREFER_PERL_FUNCTIONS
		442	# define coro_init_stacks init_stacks
		443	#else
400	static void	444	static void
401	coro_init_stacks ()	445	coro_init_stacks ()
402	{	446	{
403	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	447	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
404	PL_curstackinfo->si_type = PERLSI_MAIN;	448	PL_curstackinfo->si_type = PERLSI_MAIN;
…		…
434	New(54,PL_retstack,16,OP*);	478	New(54,PL_retstack,16,OP*);
435	PL_retstack_ix = 0;	479	PL_retstack_ix = 0;
436	PL_retstack_max = 16;	480	PL_retstack_max = 16;
437	#endif	481	#endif
438	}	482	}
		483	#endif
439		484
440	/*	485	/*
441	* destroy the stacks, the callchain etc...	486	* destroy the stacks, the callchain etc...
442	*/	487	*/
443	static void	488	static void
444	coro_destroy_stacks ()	489	coro_destroy_stacks ()
445	{	490	{
446	if (!IN_DESTRUCT)	491	if (!IN_DESTRUCT)
447	{	492	{
448	/* is this ugly, I ask? */	493	/* restore all saved variables and stuff */
449	LEAVE_SCOPE (0);	494	LEAVE_SCOPE (0);
		495	assert (PL_tmps_floor == -1);
450		496
451	/* sure it is, but more important: is it correct?? :/ */	497	/* free all temporaries */
452	FREETMPS;	498	FREETMPS;
		499	assert (PL_tmps_ix == -1);
453		500
		501	/* unwind all extra stacks */
454	/POPSTACK_TO (PL_mainstack);//D//use/	502	POPSTACK_TO (PL_mainstack);
		503
		504	/* unwind main stack */
		505	dounwind (-1);
455	}	506	}
456		507
457	while (PL_curstackinfo->si_next)	508	while (PL_curstackinfo->si_next)
458	PL_curstackinfo = PL_curstackinfo->si_next;	509	PL_curstackinfo = PL_curstackinfo->si_next;
459		510
460	while (PL_curstackinfo)	511	while (PL_curstackinfo)
461	{	512	{
462	PERL_SI *p = PL_curstackinfo->si_prev;	513	PERL_SI *p = PL_curstackinfo->si_prev;
463		514
464	{ /D//remove/
465	dSP;
466	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
467	PUTBACK; /* possibly superfluous */
468	}
469
470	if (!IN_DESTRUCT)	515	if (!IN_DESTRUCT)
471	{
472	dounwind (-1);/D//remove/
473	SvREFCNT_dec (PL_curstackinfo->si_stack);	516	SvREFCNT_dec (PL_curstackinfo->si_stack);
474	}
475		517
476	Safefree (PL_curstackinfo->si_cxstack);	518	Safefree (PL_curstackinfo->si_cxstack);
477	Safefree (PL_curstackinfo);	519	Safefree (PL_curstackinfo);
478	PL_curstackinfo = p;	520	PL_curstackinfo = p;
479	}	521	}
…		…
485	#if !PERL_VERSION_ATLEAST (5,9,0)	527	#if !PERL_VERSION_ATLEAST (5,9,0)
486	Safefree (PL_retstack);	528	Safefree (PL_retstack);
487	#endif	529	#endif
488	}	530	}
489		531
		532	/ coroutine stack handling **********************************************/
		533
490	static void	534	static void
491	setup_coro (struct coro *coro)	535	setup_coro (struct coro *coro)
492	{	536	{
493	/*	537	/*
494	* emulate part of the perl startup here.	538	* emulate part of the perl startup here.
…		…
496		540
497	coro_init_stacks ();	541	coro_init_stacks ();
498		542
499	PL_curcop = &PL_compiling;	543	PL_curcop = &PL_compiling;
500	PL_in_eval = EVAL_NULL;	544	PL_in_eval = EVAL_NULL;
		545	PL_comppad = 0;
501	PL_curpm = 0;	546	PL_curpm = 0;
502	PL_localizing = 0;	547	PL_localizing = 0;
503	PL_dirty = 0;	548	PL_dirty = 0;
504	PL_restartop = 0;	549	PL_restartop = 0;
505		550
…		…
580		625
581	static coro_cctx *	626	static coro_cctx *
582	cctx_new ()	627	cctx_new ()
583	{	628	{
584	coro_cctx *cctx;	629	coro_cctx *cctx;
		630	void *stack_start;
		631	size_t stack_size;
585		632
586	++cctx_count;	633	++cctx_count;
587		634
588	New (0, cctx, 1, coro_cctx);	635	Newz (0, cctx, 1, coro_cctx);
589		636
590	#if HAVE_MMAP	637	#if HAVE_MMAP
591		638
592	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	639	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
593	/* mmap supposedly does allocate-on-write for us */	640	/* mmap supposedly does allocate-on-write for us */
594	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	641	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
595		642
596	if (cctx->sptr == (void *)-1)	643	if (cctx->sptr != (void *)-1)
597	{
598	perror ("FATAL: unable to mmap stack for coroutine");
599	_exit (EXIT_FAILURE);
600	}	644	{
601
602	# if STACKGUARD	645	# if CORO_STACKGUARD
603	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	646	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
604	# endif	647	# endif
		648	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		649	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		650	cctx->mapped = 1;
		651	}
		652	else
		653	#endif
		654	{
		655	cctx->ssize = coro_stacksize * (long)sizeof (long);
		656	New (0, cctx->sptr, coro_stacksize, long);
605		657
606	#else
607
608	cctx->ssize = STACKSIZE * (long)sizeof (long);
609	New (0, cctx->sptr, STACKSIZE, long);
610
611	if (!cctx->sptr)	658	if (!cctx->sptr)
612	{	659	{
613	perror ("FATAL: unable to malloc stack for coroutine");	660	perror ("FATAL: unable to allocate stack for coroutine");
614	_exit (EXIT_FAILURE);	661	_exit (EXIT_FAILURE);
615	}	662	}
616		663
617	#endif	664	stack_start = cctx->sptr;
		665	stack_size = cctx->ssize;
		666	}
618		667
619	#if USE_VALGRIND	668	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
620	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
621	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
622	cctx->ssize + (char *)cctx->sptr
623	);
624	#endif
625
626	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	669	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
627		670
628	return cctx;	671	return cctx;
629	}	672	}
630		673
631	static void	674	static void
…		…
634	if (!cctx)	677	if (!cctx)
635	return;	678	return;
636		679
637	--cctx_count;	680	--cctx_count;
638		681
639	#if USE_VALGRIND	682	#if CORO_USE_VALGRIND
640	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	683	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
641	#endif	684	#endif
642		685
643	#if HAVE_MMAP	686	#if HAVE_MMAP
		687	if (cctx->mapped)
644	munmap (cctx->sptr, cctx->ssize);	688	munmap (cctx->sptr, cctx->ssize);
645	#else	689	else
		690	#endif
646	Safefree (cctx->sptr);	691	Safefree (cctx->sptr);
647	#endif
648		692
649	Safefree (cctx);	693	Safefree (cctx);
650	}	694	}
651		695
652	static coro_cctx *	696	static coro_cctx *
653	cctx_get ()	697	cctx_get ()
654	{	698	{
655	coro_cctx *cctx;
656
657	if (cctx_first)	699	while (cctx_first)
658	{	700	{
659	cctx = cctx_first;	701	coro_cctx *cctx = cctx_first;
660	cctx_first = cctx->next;	702	cctx_first = cctx->next;
661	--cctx_idle;	703	--cctx_idle;
		704
		705	if (cctx->ssize >= coro_stacksize)
		706	return cctx;
		707
		708	cctx_destroy (cctx);
662	}	709	}
663	else	710
664	{
665	cctx = cctx_new ();
666	PL_op = PL_op->op_next;	711	PL_op = PL_op->op_next;
667	}
668
669	return cctx;	712	return cctx_new ();
670	}	713	}
671		714
672	static void	715	static void
673	cctx_put (coro_cctx *cctx)	716	cctx_put (coro_cctx *cctx)
674	{	717	{
…		…
686	++cctx_idle;	729	++cctx_idle;
687	cctx->next = cctx_first;	730	cctx->next = cctx_first;
688	cctx_first = cctx;	731	cctx_first = cctx;
689	}	732	}
690		733
		734	/ coroutine switching ***************************************************/
		735
691	/* never call directly, always through the coro_state_transfer global variable */	736	/* never call directly, always through the coro_state_transfer global variable */
692	static void NOINLINE	737	static void NOINLINE
693	transfer (struct coro prev, struct coro next, int flags)	738	transfer (struct coro prev, struct coro next)
694	{	739	{
695	dSTACKLEVEL;	740	dSTACKLEVEL;
696		741
697	/* sometimes transfer is only called to set idle_sp */	742	/* sometimes transfer is only called to set idle_sp */
698	if (flags == TRANSFER_SET_STACKLEVEL)	743	if (!next)
		744	{
699	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	745	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
		746	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
		747	}
700	else if (prev != next)	748	else if (prev != next)
701	{	749	{
702	coro_cctx *prev__cctx;	750	coro_cctx *prev__cctx;
703		751
704	if (prev->flags & CF_NEW)	752	if (prev->flags & CF_NEW)
…		…
715	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");	763	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
716		764
717	if (next->flags & CF_RUNNING)	765	if (next->flags & CF_RUNNING)
718	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	766	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
719		767
		768	if (next->flags & CF_DESTROYED)
		769	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		770
720	prev->flags &= ~CF_RUNNING;	771	prev->flags &= ~CF_RUNNING;
721	next->flags \|= CF_RUNNING;	772	next->flags \|= CF_RUNNING;
722		773
723	LOCK;	774	LOCK;
724		775
725	if (next->flags & CF_NEW)	776	if (next->flags & CF_NEW)
726	{	777	{
727	/* need to start coroutine */	778	/* need to start coroutine */
728	next->flags &= ~CF_NEW;	779	next->flags &= ~CF_NEW;
729	/* first get rid of the old state */	780	/* first get rid of the old state */
730	SAVE (prev, -1);	781	save_perl (prev);
731	/* setup coroutine call */	782	/* setup coroutine call */
732	setup_coro (next);	783	setup_coro (next);
733	/* need a new stack */	784	/* need a new stack */
734	assert (!next->stack);	785	assert (!next->cctx);
735	}	786	}
736	else	787	else
737	{	788	{
738	/* coroutine already started */	789	/* coroutine already started */
739	SAVE (prev, flags);	790	save_perl (prev);
740	LOAD (next);	791	load_perl (next);
741	}	792	}
742		793
743	prev__cctx = prev->cctx;	794	prev__cctx = prev->cctx;
744		795
745	/* possibly "free" the cctx */	796	/* possibly "free" the cctx */
746	if (prev__cctx->idle_sp == STACKLEVEL)	797	if (prev__cctx->idle_sp == STACKLEVEL)
747	{	798	{
748	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	799	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
749	assert (PL_top_env == prev__cctx->top_env);	800	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
750		801
751	prev->cctx = 0;	802	prev->cctx = 0;
752		803
753	cctx_put (prev__cctx);	804	cctx_put (prev__cctx);
754	prev__cctx->inuse = 0;	805	prev__cctx->inuse = 0;
…		…
767	PL_top_env = next->cctx->top_env;	818	PL_top_env = next->cctx->top_env;
768	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	819	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
769	}	820	}
770		821
771	free_coro_mortal ();	822	free_coro_mortal ();
772
773	UNLOCK;	823	UNLOCK;
774	}	824	}
775	}	825	}
776		826
777	struct transfer_args	827	struct transfer_args
778	{	828	{
779	struct coro prev, next;	829	struct coro prev, next;
780	int flags;
781	};	830	};
782		831
783	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)	832	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
784		833
		834	/ high level stuff ******************************************************/
		835
785	static void	836	static int
786	coro_state_destroy (struct coro *coro)	837	coro_state_destroy (struct coro *coro)
787	{	838	{
788	if (coro->refcnt--)	839	if (coro->flags & CF_DESTROYED)
789	return;	840	return 0;
		841
		842	coro->flags \|= CF_DESTROYED;
		843
		844	if (coro->flags & CF_READY)
		845	{
		846	/* reduce nready, as destroying a ready coro effectively unreadies it */
		847	/* alternative: look through all ready queues and remove the coro */
		848	LOCK;
		849	--coro_nready;
		850	UNLOCK;
		851	}
		852	else
		853	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
790		854
791	if (coro->mainstack && coro->mainstack != main_mainstack)	855	if (coro->mainstack && coro->mainstack != main_mainstack)
792	{	856	{
793	struct coro temp;	857	struct coro temp;
		858
		859	assert (!(coro->flags & CF_RUNNING));
		860
		861	Zero (&temp, 1, struct coro);
		862	temp.save = CORO_SAVE_ALL;
794		863
795	if (coro->flags & CF_RUNNING)	864	if (coro->flags & CF_RUNNING)
796	croak ("FATAL: tried to destroy currently running coroutine");	865	croak ("FATAL: tried to destroy currently running coroutine");
797		866
798	SAVE ((&temp), TRANSFER_SAVE_ALL);	867	save_perl (&temp);
799	LOAD (coro);	868	load_perl (coro);
800		869
801	coro_destroy_stacks ();	870	coro_destroy_stacks ();
802		871
803	LOAD ((&temp)); /* this will get rid of defsv etc.. */	872	load_perl (&temp); /* this will get rid of defsv etc.. */
804		873
805	coro->mainstack = 0;	874	coro->mainstack = 0;
806	}	875	}
807		876
808	cctx_destroy (coro->cctx);	877	cctx_destroy (coro->cctx);
809	SvREFCNT_dec (coro->args);	878	SvREFCNT_dec (coro->args);
810	Safefree (coro);	879
		880	return 1;
811	}	881	}
812		882
813	static int	883	static int
814	coro_state_clear (pTHX_ SV sv, MAGIC mg)	884	coro_state_free (pTHX_ SV sv, MAGIC mg)
815	{	885	{
816	struct coro coro = (struct coro )mg->mg_ptr;	886	struct coro coro = (struct coro )mg->mg_ptr;
817	mg->mg_ptr = 0;	887	mg->mg_ptr = 0;
818		888
		889	if (--coro->refcnt < 0)
		890	{
819	coro_state_destroy (coro);	891	coro_state_destroy (coro);
		892	Safefree (coro);
		893	}
820		894
821	return 0;	895	return 0;
822	}	896	}
823		897
824	static int	898	static int
…		…
831	return 0;	905	return 0;
832	}	906	}
833		907
834	static MGVTBL coro_state_vtbl = {	908	static MGVTBL coro_state_vtbl = {
835	0, 0, 0, 0,	909	0, 0, 0, 0,
836	coro_state_clear,	910	coro_state_free,
837	0,	911	0,
838	#ifdef MGf_DUP	912	#ifdef MGf_DUP
839	coro_state_dup,	913	coro_state_dup,
840	#else	914	#else
841	# define MGf_DUP 0	915	# define MGf_DUP 0
…		…
857	/* very slow, but rare, check */	931	/* very slow, but rare, check */
858	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	932	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
859	croak ("Coro::State object required");	933	croak ("Coro::State object required");
860	}	934	}
861		935
862	mg = SvMAGIC (coro);	936	mg = CORO_MAGIC (coro);
863	assert (mg->mg_type == PERL_MAGIC_ext);
864	return (struct coro *)mg->mg_ptr;	937	return (struct coro *)mg->mg_ptr;
865	}	938	}
866		939
867	static void	940	static void
868	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)	941	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)
869	{	942	{
870	ta->prev = SvSTATE (prev);	943	ta->prev = SvSTATE (prev_sv);
871	ta->next = SvSTATE (next);	944	ta->next = SvSTATE (next_sv);
872	ta->flags = flags;
873	}	945	}
874		946
875	static void	947	static void
876	api_transfer (SV prev, SV next, int flags)	948	api_transfer (SV prev_sv, SV next_sv)
877	{	949	{
878	struct transfer_args ta;	950	struct transfer_args ta;
879		951
880	prepare_transfer (&ta, prev, next, flags);	952	prepare_transfer (&ta, prev_sv, next_sv);
881	TRANSFER (ta);	953	TRANSFER (ta);
882	}	954	}
883		955
		956	static int
		957	api_save (SV *coro_sv, int new_save)
		958	{
		959	struct coro *coro = SvSTATE (coro_sv);
		960	int old_save = coro->save;
		961
		962	if (new_save >= 0)
		963	coro->save = new_save;
		964
		965	return old_save;
		966	}
		967
884	/ Coro ******************************************************************/	968	/ Coro ******************************************************************/
885		969
886	#define PRIO_MAX 3
887	#define PRIO_HIGH 1
888	#define PRIO_NORMAL 0
889	#define PRIO_LOW -1
890	#define PRIO_IDLE -3
891	#define PRIO_MIN -4
892
893	/* for Coro.pm */
894	static SV *coro_current;
895	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
896	static int coro_nready;
897
898	static void	970	static void
899	coro_enq (SV *coro_sv)	971	coro_enq (SV *coro_sv)
900	{	972	{
901	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	973	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
902	coro_nready++;
903	}	974	}
904		975
905	static SV *	976	static SV *
906	coro_deq (int min_prio)	977	coro_deq (int min_prio)
907	{	978	{
…		…
911	if (min_prio < 0)	982	if (min_prio < 0)
912	min_prio = 0;	983	min_prio = 0;
913		984
914	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	985	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
915	if (AvFILLp (coro_ready [prio]) >= 0)	986	if (AvFILLp (coro_ready [prio]) >= 0)
916	{
917	coro_nready--;
918	return av_shift (coro_ready [prio]);	987	return av_shift (coro_ready [prio]);
919	}
920		988
921	return 0;	989	return 0;
922	}	990	}
923		991
924	static int	992	static int
…		…
932	coro = SvSTATE (coro_sv);	1000	coro = SvSTATE (coro_sv);
933		1001
934	if (coro->flags & CF_READY)	1002	if (coro->flags & CF_READY)
935	return 0;	1003	return 0;
936		1004
937	#if 0 /* this is actually harmless */
938	if (coro->flags & CF_RUNNING)
939	croak ("Coro::ready called on currently running coroutine");
940	#endif
941
942	coro->flags \|= CF_READY;	1005	coro->flags \|= CF_READY;
943		1006
944	LOCK;	1007	LOCK;
945	coro_enq (SvREFCNT_inc (coro_sv));	1008	coro_enq (SvREFCNT_inc (coro_sv));
		1009	++coro_nready;
946	UNLOCK;	1010	UNLOCK;
947		1011
948	return 1;	1012	return 1;
949	}	1013	}
950		1014
951	static int	1015	static int
952	api_is_ready (SV *coro_sv)	1016	api_is_ready (SV *coro_sv)
953	{	1017	{
954	return !!SvSTATE (coro_sv)->flags & CF_READY;	1018	return !!(SvSTATE (coro_sv)->flags & CF_READY);
955	}	1019	}
956		1020
957	static void	1021	static void
958	prepare_schedule (struct transfer_args *ta)	1022	prepare_schedule (struct transfer_args *ta)
959	{	1023	{
960	SV prev, next;	1024	SV prev_sv, next_sv;
961		1025
962	for (;;)	1026	for (;;)
963	{	1027	{
964	LOCK;	1028	LOCK;
965	next = coro_deq (PRIO_MIN);	1029	next_sv = coro_deq (PRIO_MIN);
		1030
		1031	/* nothing to schedule: call the idle handler */
		1032	if (!next_sv)
		1033	{
		1034	dSP;
		1035	UNLOCK;
		1036
		1037	ENTER;
		1038	SAVETMPS;
		1039
		1040	PUSHMARK (SP);
		1041	PUTBACK;
		1042	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1043
		1044	FREETMPS;
		1045	LEAVE;
		1046	continue;
		1047	}
		1048
		1049	ta->next = SvSTATE (next_sv);
		1050
		1051	/* cannot transfer to destroyed coros, skip and look for next */
		1052	if (ta->next->flags & CF_DESTROYED)
		1053	{
		1054	UNLOCK;
		1055	SvREFCNT_dec (next_sv);
		1056	/* coro_nready is already taken care of by destroy */
		1057	continue;
		1058	}
		1059
		1060	--coro_nready;
966	UNLOCK;	1061	UNLOCK;
967
968	if (next)
969	break;	1062	break;
970
971	{
972	dSP;
973
974	ENTER;
975	SAVETMPS;
976
977	PUSHMARK (SP);
978	PUTBACK;
979	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
980
981	FREETMPS;
982	LEAVE;
983	}	1063	}
984	}
985
986	prev = SvRV (coro_current);
987	SvRV_set (coro_current, next);
988		1064
989	/* free this only after the transfer */	1065	/* free this only after the transfer */
		1066	prev_sv = SvRV (coro_current);
		1067	SvRV_set (coro_current, next_sv);
		1068	ta->prev = SvSTATE (prev_sv);
		1069
		1070	assert (ta->next->flags & CF_READY);
		1071	ta->next->flags &= ~CF_READY;
		1072
990	LOCK;	1073	LOCK;
991	free_coro_mortal ();	1074	free_coro_mortal ();
		1075	coro_mortal = prev_sv;
992	UNLOCK;	1076	UNLOCK;
993	coro_mortal = prev;
994
995	assert (!SvROK(prev));//D
996	assert (!SvROK(next));//D
997
998	ta->prev = SvSTATE (prev);
999	ta->next = SvSTATE (next);
1000	ta->flags = TRANSFER_SAVE_ALL;
1001
1002	assert (ta->flags & CF_READY);
1003	ta->next->flags &= ~CF_READY;
1004	}	1077	}
1005		1078
1006	static void	1079	static void
1007	prepare_cede (struct transfer_args *ta)	1080	prepare_cede (struct transfer_args *ta)
1008	{	1081	{
1009	api_ready (coro_current);	1082	api_ready (coro_current);
1010
1011	prepare_schedule (ta);	1083	prepare_schedule (ta);
		1084	}
		1085
		1086	static int
		1087	prepare_cede_notself (struct transfer_args *ta)
		1088	{
		1089	if (coro_nready)
		1090	{
		1091	SV *prev = SvRV (coro_current);
		1092	prepare_schedule (ta);
		1093	api_ready (prev);
		1094	return 1;
		1095	}
		1096	else
		1097	return 0;
1012	}	1098	}
1013		1099
1014	static void	1100	static void
1015	api_schedule (void)	1101	api_schedule (void)
1016	{	1102	{
…		…
1018		1104
1019	prepare_schedule (&ta);	1105	prepare_schedule (&ta);
1020	TRANSFER (ta);	1106	TRANSFER (ta);
1021	}	1107	}
1022		1108
1023	static void	1109	static int
1024	api_cede (void)	1110	api_cede (void)
1025	{	1111	{
1026	struct transfer_args ta;	1112	struct transfer_args ta;
1027		1113
1028	prepare_cede (&ta);	1114	prepare_cede (&ta);
		1115
		1116	if (ta.prev != ta.next)
		1117	{
1029	TRANSFER (ta);	1118	TRANSFER (ta);
		1119	return 1;
		1120	}
		1121	else
		1122	return 0;
		1123	}
		1124
		1125	static int
		1126	api_cede_notself (void)
		1127	{
		1128	struct transfer_args ta;
		1129
		1130	if (prepare_cede_notself (&ta))
		1131	{
		1132	TRANSFER (ta);
		1133	return 1;
		1134	}
		1135	else
		1136	return 0;
1030	}	1137	}
1031		1138
1032	MODULE = Coro::State PACKAGE = Coro::State	1139	MODULE = Coro::State PACKAGE = Coro::State
1033		1140
1034	PROTOTYPES: DISABLE	1141	PROTOTYPES: DISABLE
…		…
1040	#endif	1147	#endif
1041	BOOT_PAGESIZE;	1148	BOOT_PAGESIZE;
1042		1149
1043	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1150	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1044		1151
1045	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1152	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1046	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1153	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1047	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1154	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
		1155	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1156	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1048		1157
1049	main_mainstack = PL_mainstack;	1158	main_mainstack = PL_mainstack;
1050		1159
1051	coroapi.ver = CORO_API_VERSION;	1160	coroapi.ver = CORO_API_VERSION;
1052	coroapi.transfer = api_transfer;	1161	coroapi.transfer = api_transfer;
…		…
1062	HV *hv;	1171	HV *hv;
1063	int i;	1172	int i;
1064		1173
1065	Newz (0, coro, 1, struct coro);	1174	Newz (0, coro, 1, struct coro);
1066	coro->args = newAV ();	1175	coro->args = newAV ();
		1176	coro->save = CORO_SAVE_ALL;
1067	coro->flags = CF_NEW;	1177	coro->flags = CF_NEW;
1068		1178
1069	hv = newHV ();	1179	hv = newHV ();
1070	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1180	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1071	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1181	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1072		1182
1073	for (i = 1; i < items; i++)	1183	for (i = 1; i < items; i++)
1074	av_push (coro->args, newSVsv (ST (i)));	1184	av_push (coro->args, newSVsv (ST (i)));
1075	}	1185	}
1076	OUTPUT:	1186	OUTPUT:
		1187	RETVAL
		1188
		1189	int
		1190	save (SV *coro, int new_save = -1)
		1191	CODE:
		1192	RETVAL = api_save (coro, new_save);
		1193	OUTPUT:
1077	RETVAL	1194	RETVAL
1078		1195
1079	void	1196	void
1080	_set_stacklevel (...)	1197	_set_stacklevel (...)
1081	ALIAS:	1198	ALIAS:
1082	Coro::State::transfer = 1	1199	Coro::State::transfer = 1
1083	Coro::schedule = 2	1200	Coro::schedule = 2
1084	Coro::cede = 3	1201	Coro::cede = 3
		1202	Coro::cede_notself = 4
1085	CODE:	1203	CODE:
1086	{	1204	{
1087	struct transfer_args ta;	1205	struct transfer_args ta;
1088		1206
1089	switch (ix)	1207	switch (ix)
1090	{	1208	{
1091	case 0:	1209	case 0:
1092	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1210	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1093	ta.next = 0;	1211	ta.next = 0;
1094	ta.flags = TRANSFER_SET_STACKLEVEL;
1095	break;	1212	break;
1096		1213
1097	case 1:	1214	case 1:
1098	if (items != 3)	1215	if (items != 2)
1099	croak ("Coro::State::transfer (prev,next,flags) expects three arguments, not %d", items);	1216	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1100		1217
1101	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));	1218	prepare_transfer (&ta, ST (0), ST (1));
1102	break;	1219	break;
1103		1220
1104	case 2:	1221	case 2:
1105	prepare_schedule (&ta);	1222	prepare_schedule (&ta);
1106	break;	1223	break;
1107		1224
1108	case 3:	1225	case 3:
1109	prepare_cede (&ta);	1226	prepare_cede (&ta);
1110	break;	1227	break;
		1228
		1229	case 4:
		1230	if (!prepare_cede_notself (&ta))
		1231	XSRETURN_EMPTY;
		1232
		1233	break;
1111	}	1234	}
1112		1235
		1236	BARRIER;
1113	TRANSFER (ta);	1237	TRANSFER (ta);
1114	}
1115		1238
1116	void	1239	if (GIMME_V != G_VOID && ta.next != ta.prev)
1117	_clone_state_from (SV dst, SV src)	1240	XSRETURN_YES;
		1241	}
		1242
		1243	bool
		1244	_destroy (SV *coro_sv)
1118	CODE:	1245	CODE:
1119	{	1246	RETVAL = coro_state_destroy (SvSTATE (coro_sv));
1120	struct coro *coro_src = SvSTATE (src);	1247	OUTPUT:
1121		1248	RETVAL
1122	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1123
1124	++coro_src->refcnt;
1125	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1126	}
1127		1249
1128	void	1250	void
1129	_exit (code)	1251	_exit (code)
1130	int code	1252	int code
1131	PROTOTYPE: $	1253	PROTOTYPE: $
1132	CODE:	1254	CODE:
1133	_exit (code);	1255	_exit (code);
1134		1256
1135	int	1257	int
		1258	cctx_stacksize (int new_stacksize = 0)
		1259	CODE:
		1260	RETVAL = coro_stacksize;
		1261	if (new_stacksize)
		1262	coro_stacksize = new_stacksize;
		1263	OUTPUT:
		1264	RETVAL
		1265
		1266	int
1136	cctx_count ()	1267	cctx_count ()
1137	CODE:	1268	CODE:
1138	RETVAL = cctx_count;	1269	RETVAL = cctx_count;
1139	OUTPUT:	1270	OUTPUT:
1140	RETVAL	1271	RETVAL
…		…
1168	coro_ready[i] = newAV ();	1299	coro_ready[i] = newAV ();
1169		1300
1170	{	1301	{
1171	SV *sv = perl_get_sv("Coro::API", 1);	1302	SV *sv = perl_get_sv("Coro::API", 1);
1172		1303
1173	coroapi.schedule = api_schedule;	1304	coroapi.schedule = api_schedule;
		1305	coroapi.save = api_save;
1174	coroapi.cede = api_cede;	1306	coroapi.cede = api_cede;
		1307	coroapi.cede_notself = api_cede_notself;
1175	coroapi.ready = api_ready;	1308	coroapi.ready = api_ready;
1176	coroapi.is_ready = api_is_ready;	1309	coroapi.is_ready = api_is_ready;
1177	coroapi.nready = &coro_nready;	1310	coroapi.nready = &coro_nready;
1178	coroapi.current = coro_current;	1311	coroapi.current = coro_current;
1179		1312
1180	GCoroAPI = &coroapi;	1313	GCoroAPI = &coroapi;
1181	sv_setiv (sv, (IV)&coroapi);	1314	sv_setiv (sv, (IV)&coroapi);
1182	SvREADONLY_on (sv);	1315	SvREADONLY_on (sv);
1183	}	1316	}
1184	}	1317	}
		1318
		1319	void
		1320	_set_current (SV *current)
		1321	PROTOTYPE: $
		1322	CODE:
		1323	SvREFCNT_dec (SvRV (coro_current));
		1324	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1185		1325
1186	int	1326	int
1187	prio (Coro::State coro, int newprio = 0)	1327	prio (Coro::State coro, int newprio = 0)
1188	ALIAS:	1328	ALIAS:
1189	nice = 1	1329	nice = 1
…		…
1192	RETVAL = coro->prio;	1332	RETVAL = coro->prio;
1193		1333
1194	if (items > 1)	1334	if (items > 1)
1195	{	1335	{
1196	if (ix)	1336	if (ix)
1197	newprio += coro->prio;	1337	newprio = coro->prio - newprio;
1198		1338
1199	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1339	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
1200	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1340	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
1201		1341
1202	coro->prio = newprio;	1342	coro->prio = newprio;
1203	}	1343	}
1204	}	1344	}
		1345	OUTPUT:
		1346	RETVAL
1205		1347
1206	SV *	1348	SV *
1207	ready (SV *self)	1349	ready (SV *self)
1208	PROTOTYPE: $	1350	PROTOTYPE: $
1209	CODE:	1351	CODE:
…		…
1225	CODE:	1367	CODE:
1226	RETVAL = coro_nready;	1368	RETVAL = coro_nready;
1227	OUTPUT:	1369	OUTPUT:
1228	RETVAL	1370	RETVAL
1229		1371
1230	void
1231	_set_current (SV *current)
1232	PROTOTYPE: $
1233	CODE:
1234	SvREFCNT_dec (SvRV (coro_current));
1235	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1236
1237	MODULE = Coro::State PACKAGE = Coro::AIO	1372	MODULE = Coro::State PACKAGE = Coro::AIO
1238		1373
1239	SV *	1374	SV *
1240	_get_state ()	1375	_get_state ()
1241	CODE:	1376	CODE:

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing Coro/Coro/State.xs (file contents): Revision 1.121 by root, Sat Dec 2 20:40:25 2006 UTC vs. Revision 1.145 by root, Mon Mar 12 21:40:14 2007 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.121 by root, Sat Dec 2 20:40:25 2006 UTC vs.
Revision 1.145 by root, Mon Mar 12 21:40:14 2007 UTC