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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.126 by root, Tue Dec 12 04:19:56 2006 UTC vs.
Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
		2
		3	#define PERL_NO_GET_CONTEXT
2		4
3	#include "EXTERN.h"	5	#include "EXTERN.h"
4	#include "perl.h"	6	#include "perl.h"
5	#include "XSUB.h"	7	#include "XSUB.h"
6		8
7	#include "patchlevel.h"	9	#include "patchlevel.h"
8		10
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	/* 5.8.7 */
44	#ifndef SvRV_set
45	# define SvRV_set(s,v) SvRV(s) = (v)
46	#endif
47
48	#include <stdio.h>	11	#include <stdio.h>
49	#include <errno.h>	12	#include <errno.h>
50	#include <assert.h>	13	#include <assert.h>
51
52	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
53	# undef STACKGUARD
54	#endif
55
56	#ifndef STACKGUARD
57	# define STACKGUARD 0
58	#endif
59		14
60	#ifdef HAVE_MMAP	15	#ifdef HAVE_MMAP
61	# include <unistd.h>	16	# include <unistd.h>
62	# include <sys/mman.h>	17	# include <sys/mman.h>
63	# ifndef MAP_ANONYMOUS	18	# ifndef MAP_ANONYMOUS
78	#else	33	#else
79	# define PAGESIZE 0	34	# define PAGESIZE 0
80	# define BOOT_PAGESIZE (void)0	35	# define BOOT_PAGESIZE (void)0
81	#endif	36	#endif
82		37
		38	#if CORO_USE_VALGRIND
		39	# include <valgrind/valgrind.h>
		40	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
		41	#else
		42	# define REGISTER_STACK(cctx,start,end)
		43	#endif
		44
		45	/* the maximum number of idle cctx that will be pooled */
		46	#define MAX_IDLE_CCTX 8
		47
		48	#define PERL_VERSION_ATLEAST(a,b,c) \
		49	(PERL_REVISION > (a) \
		50	\|\| (PERL_REVISION == (a) \
		51	&& (PERL_VERSION > (b) \
		52	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
		53
		54	#if !PERL_VERSION_ATLEAST (5,6,0)
		55	# ifndef PL_ppaddr
		56	# define PL_ppaddr ppaddr
		57	# endif
		58	# ifndef call_sv
		59	# define call_sv perl_call_sv
		60	# endif
		61	# ifndef get_sv
		62	# define get_sv perl_get_sv
		63	# endif
		64	# ifndef get_cv
		65	# define get_cv perl_get_cv
		66	# endif
		67	# ifndef IS_PADGV
		68	# define IS_PADGV(v) 0
		69	# endif
		70	# ifndef IS_PADCONST
		71	# define IS_PADCONST(v) 0
		72	# endif
		73	#endif
		74
		75	/* 5.8.7 */
		76	#ifndef SvRV_set
		77	# define SvRV_set(s,v) SvRV(s) = (v)
		78	#endif
		79
		80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
		81	# undef CORO_STACKGUARD
		82	#endif
		83
		84	#ifndef CORO_STACKGUARD
		85	# define CORO_STACKGUARD 0
		86	#endif
		87
		88	/* prefer perl internal functions over our own? */
		89	#ifndef CORO_PREFER_PERL_FUNCTIONS
		90	# define CORO_PREFER_PERL_FUNCTIONS 0
		91	#endif
		92
83	/* The next macro should declare a variable stacklevel that contains and approximation	93	/* The next macro should declare a variable stacklevel that contains and approximation
84	* to the current C stack pointer. Its property is that it changes with each call	94	* to the current C stack pointer. Its property is that it changes with each call
85	* and should be unique. */	95	* and should be unique. */
86	#define dSTACKLEVEL int stacklevel	96	#define dSTACKLEVEL int stacklevel
87	#define STACKLEVEL ((void *)&stacklevel)	97	#define STACKLEVEL ((void *)&stacklevel)
88		98
89	#define IN_DESTRUCT (PL_main_cv == Nullcv)	99	#define IN_DESTRUCT (PL_main_cv == Nullcv)
90		100
91	#if __GNUC__ >= 3	101	#if __GNUC__ >= 3
92	# define attribute(x) __attribute__(x)	102	# define attribute(x) __attribute__(x)
		103	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
93	#else	104	#else
94	# define attribute(x)	105	# define attribute(x)
		106	# define BARRIER
95	#endif	107	#endif
96		108
97	#define NOINLINE attribute ((noinline))	109	#define NOINLINE attribute ((noinline))
98		110
99	#include "CoroAPI.h"	111	#include "CoroAPI.h"
…		…
105	#else	117	#else
106	# define LOCK (void)0	118	# define LOCK (void)0
107	# define UNLOCK (void)0	119	# define UNLOCK (void)0
108	#endif	120	#endif
109		121
		122	/* helper storage struct for Coro::AIO */
110	struct io_state	123	struct io_state
111	{	124	{
112	int errorno;	125	int errorno;
113	I32 laststype;	126	I32 laststype;
114	int laststatval;	127	int laststatval;
115	Stat_t statcache;	128	Stat_t statcache;
116	};	129	};
117		130
		131	static size_t coro_stacksize = CORO_STACKSIZE;
118	static struct CoroAPI coroapi;	132	static struct CoroAPI coroapi;
119	static AV main_mainstack; / used to differentiate between $main and others */	133	static AV main_mainstack; / used to differentiate between $main and others */
120	static HV coro_state_stash, coro_stash;	134	static HV coro_state_stash, coro_stash;
121	static SV coro_mortal; / will be freed after next transfer */	135	static SV coro_mortal; / will be freed after next transfer */
122		136
…		…
127	typedef struct coro_cctx {	141	typedef struct coro_cctx {
128	struct coro_cctx *next;	142	struct coro_cctx *next;
129		143
130	/* the stack */	144	/* the stack */
131	void *sptr;	145	void *sptr;
132	long ssize; /* positive == mmap, otherwise malloc */	146	size_t ssize;
133		147
134	/* cpu state */	148	/* cpu state */
135	void idle_sp; / sp of top-level transfer/schedule/cede call */	149	void idle_sp; / sp of top-level transfer/schedule/cede call */
		150	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
136	JMPENV *top_env;	151	JMPENV *top_env;
137	coro_context cctx;	152	coro_context cctx;
138		153
139	int inuse;
140
141	#if USE_VALGRIND	154	#if CORO_USE_VALGRIND
142	int valgrind_id;	155	int valgrind_id;
143	#endif	156	#endif
		157	char inuse, mapped;
144	} coro_cctx;	158	} coro_cctx;
145		159
146	enum {	160	enum {
147	CF_RUNNING = 0x0001, /* coroutine is running */	161	CF_RUNNING = 0x0001, /* coroutine is running */
148	CF_READY = 0x0002, /* coroutine is ready */	162	CF_READY = 0x0002, /* coroutine is ready */
149	CF_NEW = 0x0004, /* ahs never been switched to */	163	CF_NEW = 0x0004, /* has never been switched to */
		164	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
150	};	165	};
151		166
152	/* this is a structure representing a perl-level coroutine */	167	/* this is a structure representing a perl-level coroutine */
153	struct coro {	168	struct coro {
154	/* the c coroutine allocated to this perl coroutine, if any */	169	/* the c coroutine allocated to this perl coroutine, if any */
…		…
176	};	191	};
177		192
178	typedef struct coro *Coro__State;	193	typedef struct coro *Coro__State;
179	typedef struct coro *Coro__State_or_hashref;	194	typedef struct coro *Coro__State_or_hashref;
180		195
		196	/ Coro ******************************************************************/
		197
		198	#define PRIO_MAX 3
		199	#define PRIO_HIGH 1
		200	#define PRIO_NORMAL 0
		201	#define PRIO_LOW -1
		202	#define PRIO_IDLE -3
		203	#define PRIO_MIN -4
		204
		205	/* for Coro.pm */
		206	static SV *coro_current;
		207	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
		208	static int coro_nready;
		209
		210	/ lowlevel stuff ********************************************************/
		211
181	static AV *	212	static AV *
182	coro_clone_padlist (CV *cv)	213	coro_clone_padlist (pTHX_ CV *cv)
183	{	214	{
184	AV *padlist = CvPADLIST (cv);	215	AV *padlist = CvPADLIST (cv);
185	AV newpadlist, newpad;	216	AV newpadlist, newpad;
186		217
187	newpadlist = newAV ();	218	newpadlist = newAV ();
…		…
199		230
200	return newpadlist;	231	return newpadlist;
201	}	232	}
202		233
203	static void	234	static void
204	free_padlist (AV *padlist)	235	free_padlist (pTHX_ AV *padlist)
205	{	236	{
206	/* may be during global destruction */	237	/* may be during global destruction */
207	if (SvREFCNT (padlist))	238	if (SvREFCNT (padlist))
208	{	239	{
209	I32 i = AvFILLp (padlist);	240	I32 i = AvFILLp (padlist);
…		…
230	AV *padlist;	261	AV *padlist;
231	AV av = (AV )mg->mg_obj;	262	AV av = (AV )mg->mg_obj;
232		263
233	/* casting is fun. */	264	/* casting is fun. */
234	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	265	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
235	free_padlist (padlist);	266	free_padlist (aTHX_ padlist);
236		267
237	SvREFCNT_dec (av);	268	SvREFCNT_dec (av);
238		269
239	return 0;	270	return 0;
240	}	271	}
…		…
250	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	281	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
251	: 0	282	: 0
252		283
253	/* the next two functions merely cache the padlists */	284	/* the next two functions merely cache the padlists */
254	static void	285	static void
255	get_padlist (CV *cv)	286	get_padlist (pTHX_ CV *cv)
256	{	287	{
257	MAGIC *mg = CORO_MAGIC (cv);	288	MAGIC *mg = CORO_MAGIC (cv);
258	AV *av;	289	AV *av;
259		290
260	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	291	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
261	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	292	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
262	else	293	else
263	{	294	{
264	#if 0	295	#if CORO_PREFER_PERL_FUNCTIONS
265	/* this is probably cleaner, but also slower? */	296	/* this is probably cleaner, but also slower? */
266	CV *cp = Perl_cv_clone (cv);	297	CV *cp = Perl_cv_clone (cv);
267	CvPADLIST (cv) = CvPADLIST (cp);	298	CvPADLIST (cv) = CvPADLIST (cp);
268	CvPADLIST (cp) = 0;	299	CvPADLIST (cp) = 0;
269	SvREFCNT_dec (cp);	300	SvREFCNT_dec (cp);
270	#else	301	#else
271	CvPADLIST (cv) = coro_clone_padlist (cv);	302	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
272	#endif	303	#endif
273	}	304	}
274	}	305	}
275		306
276	static void	307	static void
277	put_padlist (CV *cv)	308	put_padlist (pTHX_ CV *cv)
278	{	309	{
279	MAGIC *mg = CORO_MAGIC (cv);	310	MAGIC *mg = CORO_MAGIC (cv);
280	AV *av;	311	AV *av;
281		312
282	if (!mg)	313	if (!mg)
…		…
293	av_extend (av, AvMAX (av) + 1);	324	av_extend (av, AvMAX (av) + 1);
294		325
295	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	326	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
296	}	327	}
297		328
		329	/ load & save, init *****************************************************/
		330
298	#define SB do {	331	#define SB do {
299	#define SE } while (0)	332	#define SE } while (0)
300		333
301	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	334	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
302		335
303	static void	336	static void
304	load_perl (Coro__State c)	337	load_perl (pTHX_ Coro__State c)
305	{	338	{
306	#define VAR(name,type) PL_ ## name = c->name;	339	#define VAR(name,type) PL_ ## name = c->name;
307	# include "state.h"	340	# include "state.h"
308	#undef VAR	341	#undef VAR
309		342
…		…
327	CV *cv;	360	CV *cv;
328		361
329	/* now do the ugly restore mess */	362	/* now do the ugly restore mess */
330	while ((cv = (CV *)POPs))	363	while ((cv = (CV *)POPs))
331	{	364	{
332	put_padlist (cv); /* mark this padlist as available */	365	put_padlist (aTHX_ cv); /* mark this padlist as available */
333	CvDEPTH (cv) = PTR2IV (POPs);	366	CvDEPTH (cv) = PTR2IV (POPs);
334	CvPADLIST (cv) = (AV *)POPs;	367	CvPADLIST (cv) = (AV *)POPs;
335	}	368	}
336		369
337	PUTBACK;	370	PUTBACK;
338	}	371	}
		372	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
339	}	373	}
340		374
341	static void	375	static void
342	save_perl (Coro__State c)	376	save_perl (pTHX_ Coro__State c)
343	{	377	{
		378	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
344	{	379	{
345	dSP;	380	dSP;
346	I32 cxix = cxstack_ix;	381	I32 cxix = cxstack_ix;
347	PERL_CONTEXT *ccstk = cxstack;	382	PERL_CONTEXT *ccstk = cxstack;
348	PERL_SI *top_si = PL_curstackinfo;	383	PERL_SI *top_si = PL_curstackinfo;
…		…
371	PUSHs ((SV *)CvPADLIST (cv));	406	PUSHs ((SV *)CvPADLIST (cv));
372	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	407	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
373	PUSHs ((SV *)cv);	408	PUSHs ((SV *)cv);
374		409
375	CvDEPTH (cv) = 0;	410	CvDEPTH (cv) = 0;
376	get_padlist (cv);	411	get_padlist (aTHX_ cv);
377	}	412	}
378	}	413	}
379	}	414	}
380		415
381	if (top_si->si_type == PERLSI_MAIN)	416	if (top_si->si_type == PERLSI_MAIN)
…		…
403	* allocate various perl stacks. This is an exact copy	438	* allocate various perl stacks. This is an exact copy
404	* of perl.c:init_stacks, except that it uses less memory	439	* of perl.c:init_stacks, except that it uses less memory
405	* on the (sometimes correct) assumption that coroutines do	440	* on the (sometimes correct) assumption that coroutines do
406	* not usually need a lot of stackspace.	441	* not usually need a lot of stackspace.
407	*/	442	*/
408	#if USE_PERL_INIT_STACKS	443	#if CORO_PREFER_PERL_FUNCTIONS
409	# define coro_init_stacks init_stacks	444	# define coro_init_stacks init_stacks
410	#else	445	#else
411
412	static void	446	static void
413	coro_init_stacks ()	447	coro_init_stacks (pTHX)
414	{	448	{
415	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	449	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
416	PL_curstackinfo->si_type = PERLSI_MAIN;	450	PL_curstackinfo->si_type = PERLSI_MAIN;
417	PL_curstack = PL_curstackinfo->si_stack;	451	PL_curstack = PL_curstackinfo->si_stack;
418	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	452	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
…		…
446	New(54,PL_retstack,16,OP*);	480	New(54,PL_retstack,16,OP*);
447	PL_retstack_ix = 0;	481	PL_retstack_ix = 0;
448	PL_retstack_max = 16;	482	PL_retstack_max = 16;
449	#endif	483	#endif
450	}	484	}
		485	#endif
451		486
452	/*	487	/*
453	* destroy the stacks, the callchain etc...	488	* destroy the stacks, the callchain etc...
454	*/	489	*/
455	static void	490	static void
456	coro_destroy_stacks ()	491	coro_destroy_stacks (pTHX)
457	{	492	{
458	if (!IN_DESTRUCT)	493	if (!IN_DESTRUCT)
459	{	494	{
460	/* restore all saved variables and stuff */	495	/* restore all saved variables and stuff */
461	LEAVE_SCOPE (0);	496	LEAVE_SCOPE (0);
…		…
463		498
464	/* free all temporaries */	499	/* free all temporaries */
465	FREETMPS;	500	FREETMPS;
466	assert (PL_tmps_ix == -1);	501	assert (PL_tmps_ix == -1);
467		502
		503	/* unwind all extra stacks */
468	POPSTACK_TO (PL_mainstack);	504	POPSTACK_TO (PL_mainstack);
		505
		506	/* unwind main stack */
		507	dounwind (-1);
469	}	508	}
470		509
471	while (PL_curstackinfo->si_next)	510	while (PL_curstackinfo->si_next)
472	PL_curstackinfo = PL_curstackinfo->si_next;	511	PL_curstackinfo = PL_curstackinfo->si_next;
473		512
…		…
489	Safefree (PL_savestack);	528	Safefree (PL_savestack);
490	#if !PERL_VERSION_ATLEAST (5,9,0)	529	#if !PERL_VERSION_ATLEAST (5,9,0)
491	Safefree (PL_retstack);	530	Safefree (PL_retstack);
492	#endif	531	#endif
493	}	532	}
494	#endif
495		533
		534	/ coroutine stack handling **********************************************/
		535
496	static void	536	static void
497	setup_coro (struct coro *coro)	537	setup_coro (pTHX_ struct coro *coro)
498	{	538	{
499	/*	539	/*
500	* emulate part of the perl startup here.	540	* emulate part of the perl startup here.
501	*/	541	*/
502
503	coro_init_stacks ();	542	coro_init_stacks (aTHX);
504		543
505	PL_curcop = &PL_compiling;	544	PL_curcop = &PL_compiling;
506	PL_in_eval = EVAL_NULL;	545	PL_in_eval = EVAL_NULL;
		546	PL_comppad = 0;
507	PL_curpm = 0;	547	PL_curpm = 0;
508	PL_localizing = 0;	548	PL_localizing = 0;
509	PL_dirty = 0;	549	PL_dirty = 0;
510	PL_restartop = 0;	550	PL_restartop = 0;
511		551
…		…
530		570
531	ENTER; /* necessary e.g. for dounwind */	571	ENTER; /* necessary e.g. for dounwind */
532	}	572	}
533		573
534	static void	574	static void
535	free_coro_mortal ()	575	free_coro_mortal (pTHX)
536	{	576	{
537	if (coro_mortal)	577	if (coro_mortal)
538	{	578	{
539	SvREFCNT_dec (coro_mortal);	579	SvREFCNT_dec (coro_mortal);
540	coro_mortal = 0;	580	coro_mortal = 0;
541	}	581	}
542	}	582	}
543		583
544	/* inject a fake call to Coro::State::_cctx_init into the execution */	584	/* inject a fake call to Coro::State::_cctx_init into the execution */
545	static void NOINLINE	585	static void NOINLINE
546	prepare_cctx (coro_cctx *cctx)	586	prepare_cctx (pTHX_ coro_cctx *cctx)
547	{	587	{
548	dSP;	588	dSP;
549	LOGOP myop;	589	LOGOP myop;
550		590
551	Zero (&myop, 1, LOGOP);	591	Zero (&myop, 1, LOGOP);
…		…
563	}	603	}
564		604
565	static void	605	static void
566	coro_run (void *arg)	606	coro_run (void *arg)
567	{	607	{
		608	dTHX;
		609
568	/* coro_run is the alternative tail of transfer(), so unlock here. */	610	/* coro_run is the alternative tail of transfer(), so unlock here. */
569	UNLOCK;	611	UNLOCK;
570		612
571	/*	613	/*
572	* this is a _very_ stripped down perl interpreter ;)	614	* this is a _very_ stripped down perl interpreter ;)
573	*/	615	*/
574	PL_top_env = &PL_start_env;	616	PL_top_env = &PL_start_env;
575		617
576	/* inject call to cctx_init */	618	/* inject call to cctx_init */
577	prepare_cctx ((coro_cctx *)arg);	619	prepare_cctx (aTHX_ (coro_cctx *)arg);
578		620
579	/* somebody will hit me for both perl_run and PL_restartop */	621	/* somebody will hit me for both perl_run and PL_restartop */
580	PL_restartop = PL_op;	622	PL_restartop = PL_op;
581	perl_run (PL_curinterp);	623	perl_run (PL_curinterp);
582		624
…		…
586		628
587	static coro_cctx *	629	static coro_cctx *
588	cctx_new ()	630	cctx_new ()
589	{	631	{
590	coro_cctx *cctx;	632	coro_cctx *cctx;
		633	void *stack_start;
		634	size_t stack_size;
591		635
592	++cctx_count;	636	++cctx_count;
593		637
594	Newz (0, cctx, 1, coro_cctx);	638	Newz (0, cctx, 1, coro_cctx);
595		639
596	#if HAVE_MMAP	640	#if HAVE_MMAP
597		641
598	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	642	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
599	/* mmap supposedly does allocate-on-write for us */	643	/* mmap supposedly does allocate-on-write for us */
600	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	644	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
601		645
602	if (cctx->sptr == (void *)-1)	646	if (cctx->sptr != (void *)-1)
603	{
604	perror ("FATAL: unable to mmap stack for coroutine");
605	_exit (EXIT_FAILURE);
606	}	647	{
607
608	# if STACKGUARD	648	# if CORO_STACKGUARD
609	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	649	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
610	# endif	650	# endif
		651	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		652	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		653	cctx->mapped = 1;
		654	}
		655	else
		656	#endif
		657	{
		658	cctx->ssize = coro_stacksize * (long)sizeof (long);
		659	New (0, cctx->sptr, coro_stacksize, long);
611		660
612	#else
613
614	cctx->ssize = STACKSIZE * (long)sizeof (long);
615	New (0, cctx->sptr, STACKSIZE, long);
616
617	if (!cctx->sptr)	661	if (!cctx->sptr)
618	{	662	{
619	perror ("FATAL: unable to malloc stack for coroutine");	663	perror ("FATAL: unable to allocate stack for coroutine");
620	_exit (EXIT_FAILURE);	664	_exit (EXIT_FAILURE);
621	}	665	}
622		666
623	#endif	667	stack_start = cctx->sptr;
		668	stack_size = cctx->ssize;
		669	}
624		670
625	#if USE_VALGRIND	671	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
626	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
627	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
628	cctx->ssize + (char *)cctx->sptr
629	);
630	#endif
631
632	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	672	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
633		673
634	return cctx;	674	return cctx;
635	}	675	}
636		676
637	static void	677	static void
…		…
640	if (!cctx)	680	if (!cctx)
641	return;	681	return;
642		682
643	--cctx_count;	683	--cctx_count;
644		684
645	#if USE_VALGRIND	685	#if CORO_USE_VALGRIND
646	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	686	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
647	#endif	687	#endif
648		688
649	#if HAVE_MMAP	689	#if HAVE_MMAP
		690	if (cctx->mapped)
650	munmap (cctx->sptr, cctx->ssize);	691	munmap (cctx->sptr, cctx->ssize);
651	#else	692	else
		693	#endif
652	Safefree (cctx->sptr);	694	Safefree (cctx->sptr);
653	#endif
654		695
655	Safefree (cctx);	696	Safefree (cctx);
656	}	697	}
657		698
658	static coro_cctx *	699	static coro_cctx *
659	cctx_get ()	700	cctx_get (pTHX)
660	{	701	{
661	coro_cctx *cctx;
662
663	if (cctx_first)	702	while (cctx_first)
664	{	703	{
665	cctx = cctx_first;	704	coro_cctx *cctx = cctx_first;
666	cctx_first = cctx->next;	705	cctx_first = cctx->next;
667	--cctx_idle;	706	--cctx_idle;
		707
		708	if (cctx->ssize >= coro_stacksize)
		709	return cctx;
		710
		711	cctx_destroy (cctx);
668	}	712	}
669	else	713
670	{
671	cctx = cctx_new ();
672	PL_op = PL_op->op_next;	714	PL_op = PL_op->op_next;
673	}
674
675	return cctx;	715	return cctx_new ();
676	}	716	}
677		717
678	static void	718	static void
679	cctx_put (coro_cctx *cctx)	719	cctx_put (coro_cctx *cctx)
680	{	720	{
…		…
692	++cctx_idle;	732	++cctx_idle;
693	cctx->next = cctx_first;	733	cctx->next = cctx_first;
694	cctx_first = cctx;	734	cctx_first = cctx;
695	}	735	}
696		736
		737	/ coroutine switching ***************************************************/
		738
697	/* never call directly, always through the coro_state_transfer global variable */	739	/* never call directly, always through the coro_state_transfer global variable */
698	static void NOINLINE	740	static void NOINLINE
699	transfer (struct coro prev, struct coro next)	741	transfer (pTHX_ struct coro prev, struct coro next)
700	{	742	{
701	dSTACKLEVEL;	743	dSTACKLEVEL;
702		744
703	/* sometimes transfer is only called to set idle_sp */	745	/* sometimes transfer is only called to set idle_sp */
704	if (!next)	746	if (!next)
705	{	747	{
706	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	748	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
707	assert (((coro_cctx )prev)->top_env = PL_top_env); / just for the side effetc when assert is enabled */	749	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
708	}	750	}
709	else if (prev != next)	751	else if (prev != next)
710	{	752	{
711	coro_cctx *prev__cctx;	753	coro_cctx *prev__cctx;
712		754
…		…
724	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");	766	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
725		767
726	if (next->flags & CF_RUNNING)	768	if (next->flags & CF_RUNNING)
727	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	769	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
728		770
		771	if (next->flags & CF_DESTROYED)
		772	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		773
729	prev->flags &= ~CF_RUNNING;	774	prev->flags &= ~CF_RUNNING;
730	next->flags \|= CF_RUNNING;	775	next->flags \|= CF_RUNNING;
731		776
732	LOCK;	777	LOCK;
733		778
734	if (next->flags & CF_NEW)	779	if (next->flags & CF_NEW)
735	{	780	{
736	/* need to start coroutine */	781	/* need to start coroutine */
737	next->flags &= ~CF_NEW;	782	next->flags &= ~CF_NEW;
738	/* first get rid of the old state */	783	/* first get rid of the old state */
739	save_perl (prev);	784	save_perl (aTHX_ prev);
740	/* setup coroutine call */	785	/* setup coroutine call */
741	setup_coro (next);	786	setup_coro (aTHX_ next);
742	/* need a new stack */	787	/* need a new stack */
743	assert (!next->cctx);	788	assert (!next->cctx);
744	}	789	}
745	else	790	else
746	{	791	{
747	/* coroutine already started */	792	/* coroutine already started */
748	save_perl (prev);	793	save_perl (aTHX_ prev);
749	load_perl (next);	794	load_perl (aTHX_ next);
750	}	795	}
751		796
752	prev__cctx = prev->cctx;	797	prev__cctx = prev->cctx;
753		798
754	/* possibly "free" the cctx */	799	/* possibly "free" the cctx */
755	if (prev__cctx->idle_sp == STACKLEVEL)	800	if (prev__cctx->idle_sp == STACKLEVEL)
756	{	801	{
757	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	802	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
758	assert (PL_top_env == prev__cctx->top_env);	803	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
759		804
760	prev->cctx = 0;	805	prev->cctx = 0;
761		806
762	cctx_put (prev__cctx);	807	cctx_put (prev__cctx);
763	prev__cctx->inuse = 0;	808	prev__cctx->inuse = 0;
764	}	809	}
765		810
766	if (!next->cctx)	811	if (!next->cctx)
767	{	812	{
768	next->cctx = cctx_get ();	813	next->cctx = cctx_get (aTHX);
769	assert (!next->cctx->inuse);	814	assert (!next->cctx->inuse);
770	next->cctx->inuse = 1;	815	next->cctx->inuse = 1;
771	}	816	}
772		817
773	if (prev__cctx != next->cctx)	818	if (prev__cctx != next->cctx)
…		…
775	prev__cctx->top_env = PL_top_env;	820	prev__cctx->top_env = PL_top_env;
776	PL_top_env = next->cctx->top_env;	821	PL_top_env = next->cctx->top_env;
777	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	822	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
778	}	823	}
779		824
780	free_coro_mortal ();	825	free_coro_mortal (aTHX);
781
782	UNLOCK;	826	UNLOCK;
783	}	827	}
784	}	828	}
785		829
786	struct transfer_args	830	struct transfer_args
787	{	831	{
788	struct coro prev, next;	832	struct coro prev, next;
789	};	833	};
790		834
791	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	835	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
792		836
		837	/ high level stuff ******************************************************/
		838
793	static void	839	static int
794	coro_state_destroy (struct coro *coro)	840	coro_state_destroy (pTHX_ struct coro *coro)
795	{	841	{
796	if (coro->refcnt--)	842	if (coro->flags & CF_DESTROYED)
797	return;	843	return 0;
		844
		845	coro->flags \|= CF_DESTROYED;
		846
		847	if (coro->flags & CF_READY)
		848	{
		849	/* reduce nready, as destroying a ready coro effectively unreadies it */
		850	/* alternative: look through all ready queues and remove the coro */
		851	LOCK;
		852	--coro_nready;
		853	UNLOCK;
		854	}
		855	else
		856	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
798		857
799	if (coro->mainstack && coro->mainstack != main_mainstack)	858	if (coro->mainstack && coro->mainstack != main_mainstack)
800	{	859	{
801	struct coro temp;	860	struct coro temp;
		861
		862	assert (!(coro->flags & CF_RUNNING));
		863
802	Zero (&temp, 1, struct coro);	864	Zero (&temp, 1, struct coro);
803	temp.save = CORO_SAVE_ALL;	865	temp.save = CORO_SAVE_ALL;
804		866
805	if (coro->flags & CF_RUNNING)	867	if (coro->flags & CF_RUNNING)
806	croak ("FATAL: tried to destroy currently running coroutine");	868	croak ("FATAL: tried to destroy currently running coroutine");
807		869
808	save_perl (&temp);	870	save_perl (aTHX_ &temp);
809	load_perl (coro);	871	load_perl (aTHX_ coro);
810		872
811	coro_destroy_stacks ();	873	coro_destroy_stacks (aTHX);
812		874
813	load_perl (&temp); /* this will get rid of defsv etc.. */	875	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
814		876
815	coro->mainstack = 0;	877	coro->mainstack = 0;
816	}	878	}
817		879
818	cctx_destroy (coro->cctx);	880	cctx_destroy (coro->cctx);
819	SvREFCNT_dec (coro->args);	881	SvREFCNT_dec (coro->args);
820	Safefree (coro);	882
		883	return 1;
821	}	884	}
822		885
823	static int	886	static int
824	coro_state_clear (pTHX_ SV sv, MAGIC mg)	887	coro_state_free (pTHX_ SV sv, MAGIC mg)
825	{	888	{
826	struct coro coro = (struct coro )mg->mg_ptr;	889	struct coro coro = (struct coro )mg->mg_ptr;
827	mg->mg_ptr = 0;	890	mg->mg_ptr = 0;
828		891
		892	if (--coro->refcnt < 0)
		893	{
829	coro_state_destroy (coro);	894	coro_state_destroy (aTHX_ coro);
		895	Safefree (coro);
		896	}
830		897
831	return 0;	898	return 0;
832	}	899	}
833		900
834	static int	901	static int
…		…
841	return 0;	908	return 0;
842	}	909	}
843		910
844	static MGVTBL coro_state_vtbl = {	911	static MGVTBL coro_state_vtbl = {
845	0, 0, 0, 0,	912	0, 0, 0, 0,
846	coro_state_clear,	913	coro_state_free,
847	0,	914	0,
848	#ifdef MGf_DUP	915	#ifdef MGf_DUP
849	coro_state_dup,	916	coro_state_dup,
850	#else	917	#else
851	# define MGf_DUP 0	918	# define MGf_DUP 0
852	#endif	919	#endif
853	};	920	};
854		921
855	static struct coro *	922	static struct coro *
856	SvSTATE (SV *coro)	923	SvSTATE_ (pTHX_ SV *coro)
857	{	924	{
858	HV *stash;	925	HV *stash;
859	MAGIC *mg;	926	MAGIC *mg;
860		927
861	if (SvROK (coro))	928	if (SvROK (coro))
…		…
867	/* very slow, but rare, check */	934	/* very slow, but rare, check */
868	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	935	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
869	croak ("Coro::State object required");	936	croak ("Coro::State object required");
870	}	937	}
871		938
872	mg = SvMAGIC (coro);	939	mg = CORO_MAGIC (coro);
873	assert (mg->mg_type == PERL_MAGIC_ext);
874	return (struct coro *)mg->mg_ptr;	940	return (struct coro *)mg->mg_ptr;
875	}	941	}
876		942
		943	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		944
877	static void	945	static void
878	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	946	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
879	{	947	{
880	ta->prev = SvSTATE (prev_sv);	948	ta->prev = SvSTATE (prev_sv);
881	ta->next = SvSTATE (next_sv);	949	ta->next = SvSTATE (next_sv);
882	}	950	}
883		951
884	static void	952	static void
885	api_transfer (SV prev_sv, SV next_sv)	953	api_transfer (SV prev_sv, SV next_sv)
886	{	954	{
		955	dTHX;
887	struct transfer_args ta;	956	struct transfer_args ta;
888		957
889	prepare_transfer (&ta, prev_sv, next_sv);	958	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
890	TRANSFER (ta);	959	TRANSFER (ta);
891	}	960	}
892		961
893	static int	962	static int
894	api_save (SV *coro_sv, int new_save)	963	api_save (SV *coro_sv, int new_save)
895	{	964	{
		965	dTHX;
896	struct coro *coro = SvSTATE (coro_sv);	966	struct coro *coro = SvSTATE (coro_sv);
897	int old_save = coro->save;	967	int old_save = coro->save;
898		968
899	if (new_save >= 0)	969	if (new_save >= 0)
900	coro->save = new_save;	970	coro->save = new_save;
…		…
902	return old_save;	972	return old_save;
903	}	973	}
904		974
905	/ Coro ******************************************************************/	975	/ Coro ******************************************************************/
906		976
907	#define PRIO_MAX 3
908	#define PRIO_HIGH 1
909	#define PRIO_NORMAL 0
910	#define PRIO_LOW -1
911	#define PRIO_IDLE -3
912	#define PRIO_MIN -4
913
914	/* for Coro.pm */
915	static SV *coro_current;
916	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
917	static int coro_nready;
918
919	static void	977	static void
920	coro_enq (SV *coro_sv)	978	coro_enq (pTHX_ SV *coro_sv)
921	{	979	{
922	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	980	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
923	coro_nready++;
924	}	981	}
925		982
926	static SV *	983	static SV *
927	coro_deq (int min_prio)	984	coro_deq (pTHX_ int min_prio)
928	{	985	{
929	int prio = PRIO_MAX - PRIO_MIN;	986	int prio = PRIO_MAX - PRIO_MIN;
930		987
931	min_prio -= PRIO_MIN;	988	min_prio -= PRIO_MIN;
932	if (min_prio < 0)	989	if (min_prio < 0)
933	min_prio = 0;	990	min_prio = 0;
934		991
935	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	992	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
936	if (AvFILLp (coro_ready [prio]) >= 0)	993	if (AvFILLp (coro_ready [prio]) >= 0)
937	{
938	coro_nready--;
939	return av_shift (coro_ready [prio]);	994	return av_shift (coro_ready [prio]);
940	}
941		995
942	return 0;	996	return 0;
943	}	997	}
944		998
945	static int	999	static int
946	api_ready (SV *coro_sv)	1000	api_ready (SV *coro_sv)
947	{	1001	{
		1002	dTHX;
948	struct coro *coro;	1003	struct coro *coro;
949		1004
950	if (SvROK (coro_sv))	1005	if (SvROK (coro_sv))
951	coro_sv = SvRV (coro_sv);	1006	coro_sv = SvRV (coro_sv);
952		1007
953	coro = SvSTATE (coro_sv);	1008	coro = SvSTATE (coro_sv);
954		1009
955	if (coro->flags & CF_READY)	1010	if (coro->flags & CF_READY)
956	return 0;	1011	return 0;
957		1012
958	#if 0 /* this is actually harmless */
959	if (coro->flags & CF_RUNNING)
960	croak ("Coro::ready called on currently running coroutine");
961	#endif
962
963	coro->flags \|= CF_READY;	1013	coro->flags \|= CF_READY;
964		1014
965	LOCK;	1015	LOCK;
966	coro_enq (SvREFCNT_inc (coro_sv));	1016	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
		1017	++coro_nready;
967	UNLOCK;	1018	UNLOCK;
968		1019
969	return 1;	1020	return 1;
970	}	1021	}
971		1022
972	static int	1023	static int
973	api_is_ready (SV *coro_sv)	1024	api_is_ready (SV *coro_sv)
974	{	1025	{
		1026	dTHX;
975	return !!SvSTATE (coro_sv)->flags & CF_READY;	1027	return !!(SvSTATE (coro_sv)->flags & CF_READY);
976	}	1028	}
977		1029
978	static void	1030	static void
979	prepare_schedule (struct transfer_args *ta)	1031	prepare_schedule (pTHX_ struct transfer_args *ta)
980	{	1032	{
981	SV prev, next;	1033	SV prev_sv, next_sv;
982		1034
983	for (;;)	1035	for (;;)
984	{	1036	{
985	LOCK;	1037	LOCK;
986	next = coro_deq (PRIO_MIN);	1038	next_sv = coro_deq (aTHX_ PRIO_MIN);
		1039
		1040	/* nothing to schedule: call the idle handler */
		1041	if (!next_sv)
		1042	{
		1043	dSP;
		1044	UNLOCK;
		1045
		1046	ENTER;
		1047	SAVETMPS;
		1048
		1049	PUSHMARK (SP);
		1050	PUTBACK;
		1051	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1052
		1053	FREETMPS;
		1054	LEAVE;
		1055	continue;
		1056	}
		1057
		1058	ta->next = SvSTATE (next_sv);
		1059
		1060	/* cannot transfer to destroyed coros, skip and look for next */
		1061	if (ta->next->flags & CF_DESTROYED)
		1062	{
		1063	UNLOCK;
		1064	SvREFCNT_dec (next_sv);
		1065	/* coro_nready is already taken care of by destroy */
		1066	continue;
		1067	}
		1068
		1069	--coro_nready;
987	UNLOCK;	1070	UNLOCK;
988
989	if (next)
990	break;	1071	break;
991
992	{
993	dSP;
994
995	ENTER;
996	SAVETMPS;
997
998	PUSHMARK (SP);
999	PUTBACK;
1000	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1001
1002	FREETMPS;
1003	LEAVE;
1004	}	1072	}
1005	}
1006
1007	prev = SvRV (coro_current);
1008	SvRV_set (coro_current, next);
1009		1073
1010	/* free this only after the transfer */	1074	/* free this only after the transfer */
1011	LOCK;	1075	prev_sv = SvRV (coro_current);
1012	free_coro_mortal ();	1076	SvRV_set (coro_current, next_sv);
1013	UNLOCK;
1014	coro_mortal = prev;
1015
1016	assert (!SvROK(prev));//D
1017	assert (!SvROK(next));//D
1018
1019	ta->prev = SvSTATE (prev);	1077	ta->prev = SvSTATE (prev_sv);
1020	ta->next = SvSTATE (next);
1021		1078
1022	assert (ta->next->flags & CF_READY);	1079	assert (ta->next->flags & CF_READY);
1023	ta->next->flags &= ~CF_READY;	1080	ta->next->flags &= ~CF_READY;
1024	}
1025		1081
		1082	LOCK;
		1083	free_coro_mortal (aTHX);
		1084	coro_mortal = prev_sv;
		1085	UNLOCK;
		1086	}
		1087
1026	static void	1088	static void
1027	prepare_cede (struct transfer_args *ta)	1089	prepare_cede (pTHX_ struct transfer_args *ta)
1028	{	1090	{
1029	api_ready (coro_current);	1091	api_ready (coro_current);
1030
1031	prepare_schedule (ta);	1092	prepare_schedule (aTHX_ ta);
		1093	}
		1094
		1095	static int
		1096	prepare_cede_notself (pTHX_ struct transfer_args *ta)
		1097	{
		1098	if (coro_nready)
		1099	{
		1100	SV *prev = SvRV (coro_current);
		1101	prepare_schedule (aTHX_ ta);
		1102	api_ready (prev);
		1103	return 1;
		1104	}
		1105	else
		1106	return 0;
1032	}	1107	}
1033		1108
1034	static void	1109	static void
1035	api_schedule (void)	1110	api_schedule (void)
1036	{	1111	{
		1112	dTHX;
1037	struct transfer_args ta;	1113	struct transfer_args ta;
1038		1114
1039	prepare_schedule (&ta);	1115	prepare_schedule (aTHX_ &ta);
1040	TRANSFER (ta);	1116	TRANSFER (ta);
1041	}	1117	}
1042		1118
1043	static void	1119	static int
1044	api_cede (void)	1120	api_cede (void)
1045	{	1121	{
		1122	dTHX;
1046	struct transfer_args ta;	1123	struct transfer_args ta;
1047		1124
1048	prepare_cede (&ta);	1125	prepare_cede (aTHX_ &ta);
		1126
		1127	if (ta.prev != ta.next)
		1128	{
1049	TRANSFER (ta);	1129	TRANSFER (ta);
		1130	return 1;
		1131	}
		1132	else
		1133	return 0;
		1134	}
		1135
		1136	static int
		1137	api_cede_notself (void)
		1138	{
		1139	dTHX;
		1140	struct transfer_args ta;
		1141
		1142	if (prepare_cede_notself (aTHX_ &ta))
		1143	{
		1144	TRANSFER (ta);
		1145	return 1;
		1146	}
		1147	else
		1148	return 0;
1050	}	1149	}
1051		1150
1052	MODULE = Coro::State PACKAGE = Coro::State	1151	MODULE = Coro::State PACKAGE = Coro::State
1053		1152
1054	PROTOTYPES: DISABLE	1153	PROTOTYPES: DISABLE
…		…
1110	_set_stacklevel (...)	1209	_set_stacklevel (...)
1111	ALIAS:	1210	ALIAS:
1112	Coro::State::transfer = 1	1211	Coro::State::transfer = 1
1113	Coro::schedule = 2	1212	Coro::schedule = 2
1114	Coro::cede = 3	1213	Coro::cede = 3
		1214	Coro::cede_notself = 4
1115	CODE:	1215	CODE:
1116	{	1216	{
1117	struct transfer_args ta;	1217	struct transfer_args ta;
1118		1218
1119	switch (ix)	1219	switch (ix)
…		…
1125		1225
1126	case 1:	1226	case 1:
1127	if (items != 2)	1227	if (items != 2)
1128	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1228	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1129		1229
1130	prepare_transfer (&ta, ST (0), ST (1));	1230	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1131	break;	1231	break;
1132		1232
1133	case 2:	1233	case 2:
1134	prepare_schedule (&ta);	1234	prepare_schedule (aTHX_ &ta);
1135	break;	1235	break;
1136		1236
1137	case 3:	1237	case 3:
1138	prepare_cede (&ta);	1238	prepare_cede (aTHX_ &ta);
		1239	break;
		1240
		1241	case 4:
		1242	if (!prepare_cede_notself (aTHX_ &ta))
		1243	XSRETURN_EMPTY;
		1244
1139	break;	1245	break;
1140	}	1246	}
1141		1247
		1248	BARRIER;
1142	TRANSFER (ta);	1249	TRANSFER (ta);
1143	}
1144		1250
1145	void	1251	if (GIMME_V != G_VOID && ta.next != ta.prev)
1146	_clone_state_from (SV dst, SV src)	1252	XSRETURN_YES;
		1253	}
		1254
		1255	bool
		1256	_destroy (SV *coro_sv)
1147	CODE:	1257	CODE:
1148	{	1258	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1149	struct coro *coro_src = SvSTATE (src);	1259	OUTPUT:
1150		1260	RETVAL
1151	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1152
1153	++coro_src->refcnt;
1154	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1155	}
1156		1261
1157	void	1262	void
1158	_exit (code)	1263	_exit (code)
1159	int code	1264	int code
1160	PROTOTYPE: $	1265	PROTOTYPE: $
1161	CODE:	1266	CODE:
1162	_exit (code);	1267	_exit (code);
1163		1268
1164	int	1269	int
		1270	cctx_stacksize (int new_stacksize = 0)
		1271	CODE:
		1272	RETVAL = coro_stacksize;
		1273	if (new_stacksize)
		1274	coro_stacksize = new_stacksize;
		1275	OUTPUT:
		1276	RETVAL
		1277
		1278	int
1165	cctx_count ()	1279	cctx_count ()
1166	CODE:	1280	CODE:
1167	RETVAL = cctx_count;	1281	RETVAL = cctx_count;
1168	OUTPUT:	1282	OUTPUT:
1169	RETVAL	1283	RETVAL
…		…
1197	coro_ready[i] = newAV ();	1311	coro_ready[i] = newAV ();
1198		1312
1199	{	1313	{
1200	SV *sv = perl_get_sv("Coro::API", 1);	1314	SV *sv = perl_get_sv("Coro::API", 1);
1201		1315
1202	coroapi.schedule = api_schedule;	1316	coroapi.schedule = api_schedule;
1203	coroapi.save = api_save;	1317	coroapi.save = api_save;
1204	coroapi.cede = api_cede;	1318	coroapi.cede = api_cede;
		1319	coroapi.cede_notself = api_cede_notself;
1205	coroapi.ready = api_ready;	1320	coroapi.ready = api_ready;
1206	coroapi.is_ready = api_is_ready;	1321	coroapi.is_ready = api_is_ready;
1207	coroapi.nready = &coro_nready;	1322	coroapi.nready = &coro_nready;
1208	coroapi.current = coro_current;	1323	coroapi.current = coro_current;
1209		1324
1210	GCoroAPI = &coroapi;	1325	GCoroAPI = &coroapi;
1211	sv_setiv (sv, (IV)&coroapi);	1326	sv_setiv (sv, (IV)&coroapi);
1212	SvREADONLY_on (sv);	1327	SvREADONLY_on (sv);
1213	}	1328	}
…		…
1229	RETVAL = coro->prio;	1344	RETVAL = coro->prio;
1230		1345
1231	if (items > 1)	1346	if (items > 1)
1232	{	1347	{
1233	if (ix)	1348	if (ix)
1234	newprio += coro->prio;	1349	newprio = coro->prio - newprio;
1235		1350
1236	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1351	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
1237	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1352	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
1238		1353
1239	coro->prio = newprio;	1354	coro->prio = newprio;
1240	}	1355	}
1241	}	1356	}
		1357	OUTPUT:
		1358	RETVAL
1242		1359
1243	SV *	1360	SV *
1244	ready (SV *self)	1361	ready (SV *self)
1245	PROTOTYPE: $	1362	PROTOTYPE: $
1246	CODE:	1363	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.126 by root, Tue Dec 12 04:19:56 2006 UTC vs. Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.126 by root, Tue Dec 12 04:19:56 2006 UTC vs.
Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC