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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.109 by root, Mon Nov 27 18:45:29 2006 UTC vs.
Revision 1.129 by root, Fri Dec 22 04:34:04 2006 UTC

…		…
4	#include "perl.h"	4	#include "perl.h"
5	#include "XSUB.h"	5	#include "XSUB.h"
6		6
7	#include "patchlevel.h"	7	#include "patchlevel.h"
8		8
9	#if USE_VALGRIND
10	# include <valgrind/valgrind.h>
11	#endif
12
13	#define PERL_VERSION_ATLEAST(a,b,c) \
14	(PERL_REVISION > (a) \
15	\|\| (PERL_REVISION == (a) \
16	&& (PERL_VERSION > (b) \
17	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
18
19	#if !PERL_VERSION_ATLEAST (5,6,0)
20	# ifndef PL_ppaddr
21	# define PL_ppaddr ppaddr
22	# endif
23	# ifndef call_sv
24	# define call_sv perl_call_sv
25	# endif
26	# ifndef get_sv
27	# define get_sv perl_get_sv
28	# endif
29	# ifndef get_cv
30	# define get_cv perl_get_cv
31	# endif
32	# ifndef IS_PADGV
33	# define IS_PADGV(v) 0
34	# endif
35	# ifndef IS_PADCONST
36	# define IS_PADCONST(v) 0
37	# endif
38	#endif
39
40	#include <stdio.h>	9	#include <stdio.h>
41	#include <errno.h>	10	#include <errno.h>
42		11	#include <assert.h>
43	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
44	# undef STACKGUARD
45	#endif
46
47	#ifndef STACKGUARD
48	# define STACKGUARD 0
49	#endif
50		12
51	#ifdef HAVE_MMAP	13	#ifdef HAVE_MMAP
52	# include <unistd.h>	14	# include <unistd.h>
53	# include <sys/mman.h>	15	# include <sys/mman.h>
54	# ifndef MAP_ANONYMOUS	16	# ifndef MAP_ANONYMOUS
…		…
69	#else	31	#else
70	# define PAGESIZE 0	32	# define PAGESIZE 0
71	# define BOOT_PAGESIZE (void)0	33	# define BOOT_PAGESIZE (void)0
72	#endif	34	#endif
73		35
		36	#if USE_VALGRIND
		37	# include <valgrind/valgrind.h>
		38	#endif
		39
		40	/* the maximum number of idle cctx that will be pooled */
		41	#define MAX_IDLE_CCTX 8
		42
		43	#define PERL_VERSION_ATLEAST(a,b,c) \
		44	(PERL_REVISION > (a) \
		45	\|\| (PERL_REVISION == (a) \
		46	&& (PERL_VERSION > (b) \
		47	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
		48
		49	#if !PERL_VERSION_ATLEAST (5,6,0)
		50	# ifndef PL_ppaddr
		51	# define PL_ppaddr ppaddr
		52	# endif
		53	# ifndef call_sv
		54	# define call_sv perl_call_sv
		55	# endif
		56	# ifndef get_sv
		57	# define get_sv perl_get_sv
		58	# endif
		59	# ifndef get_cv
		60	# define get_cv perl_get_cv
		61	# endif
		62	# ifndef IS_PADGV
		63	# define IS_PADGV(v) 0
		64	# endif
		65	# ifndef IS_PADCONST
		66	# define IS_PADCONST(v) 0
		67	# endif
		68	#endif
		69
		70	/* 5.8.7 */
		71	#ifndef SvRV_set
		72	# define SvRV_set(s,v) SvRV(s) = (v)
		73	#endif
		74
		75	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
		76	# undef STACKGUARD
		77	#endif
		78
		79	#ifndef STACKGUARD
		80	# define STACKGUARD 0
		81	#endif
		82
		83	/* prefer perl internal functions over our own? */
		84	#ifndef PREFER_PERL_FUNCTIONS
		85	# define PREFER_PERL_FUNCTIONS 0
		86	#endif
		87
74	/* The next macro should declare a variable stacklevel that contains and approximation	88	/* The next macro should declare a variable stacklevel that contains and approximation
75	* to the current C stack pointer. Its property is that it changes with each call	89	* to the current C stack pointer. Its property is that it changes with each call
76	* and should be unique. */	90	* and should be unique. */
77	#define dSTACKLEVEL int stacklevel	91	#define dSTACKLEVEL int stacklevel
78	#define STACKLEVEL ((void *)&stacklevel)	92	#define STACKLEVEL ((void *)&stacklevel)
…		…
86	#endif	100	#endif
87		101
88	#define NOINLINE attribute ((noinline))	102	#define NOINLINE attribute ((noinline))
89		103
90	#include "CoroAPI.h"	104	#include "CoroAPI.h"
91
92	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
93		105
94	#ifdef USE_ITHREADS	106	#ifdef USE_ITHREADS
95	static perl_mutex coro_mutex;	107	static perl_mutex coro_mutex;
96	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	108	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
97	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	109	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
98	#else	110	#else
99	# define LOCK (void)0	111	# define LOCK (void)0
100	# define UNLOCK (void)0	112	# define UNLOCK (void)0
101	#endif	113	#endif
102		114
		115	struct io_state
		116	{
		117	int errorno;
		118	I32 laststype;
		119	int laststatval;
		120	Stat_t statcache;
		121	};
		122
103	static struct CoroAPI coroapi;	123	static struct CoroAPI coroapi;
104	static AV main_mainstack; / used to differentiate between $main and others */	124	static AV main_mainstack; / used to differentiate between $main and others */
105	static HV coro_state_stash, coro_stash;	125	static HV coro_state_stash, coro_stash;
106	static SV coro_mortal; / will be freed after next transfer */	126	static SV coro_mortal; / will be freed after next transfer */
107		127
…		…
119	/* cpu state */	139	/* cpu state */
120	void idle_sp; / sp of top-level transfer/schedule/cede call */	140	void idle_sp; / sp of top-level transfer/schedule/cede call */
121	JMPENV *top_env;	141	JMPENV *top_env;
122	coro_context cctx;	142	coro_context cctx;
123		143
		144	int inuse;
		145
124	#if USE_VALGRIND	146	#if USE_VALGRIND
125	int valgrind_id;	147	int valgrind_id;
126	#endif	148	#endif
127	} coro_cctx;	149	} coro_cctx;
		150
		151	enum {
		152	CF_RUNNING = 0x0001, /* coroutine is running */
		153	CF_READY = 0x0002, /* coroutine is ready */
		154	CF_NEW = 0x0004, /* ahs never been switched to */
		155	};
128		156
129	/* this is a structure representing a perl-level coroutine */	157	/* this is a structure representing a perl-level coroutine */
130	struct coro {	158	struct coro {
131	/* the c coroutine allocated to this perl coroutine, if any */	159	/* the c coroutine allocated to this perl coroutine, if any */
132	coro_cctx *cctx;	160	coro_cctx *cctx;
133		161
134	/* data associated with this coroutine (initial args) */	162	/* data associated with this coroutine (initial args) */
135	AV *args;	163	AV *args;
136	int refcnt;	164	int refcnt;
		165	int save; /* CORO_SAVE flags */
		166	int flags; /* CF_ flags */
137		167
138	/* optionally saved, might be zero */	168	/* optionally saved, might be zero */
139	AV *defav;	169	AV defav; / @_ */
140	SV *defsv;	170	SV defsv; / $_ */
141	SV *errsv;	171	SV errsv; / $@ */
		172	SV irssv; / $/ */
		173	SV irssv_sv; / real $/ cache */
142		174
143	#define VAR(name,type) type name;	175	#define VAR(name,type) type name;
144	# include "state.h"	176	# include "state.h"
145	#undef VAR	177	#undef VAR
146		178
…		…
232		264
233	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	265	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
234	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	266	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
235	else	267	else
236	{	268	{
237	#if 0	269	#if PREFER_PERL_FUNCTIONS
238	/* this is probably cleaner, but also slower? */	270	/* this is probably cleaner, but also slower? */
239	CV *cp = Perl_cv_clone (cv);	271	CV *cp = Perl_cv_clone (cv);
240	CvPADLIST (cv) = CvPADLIST (cp);	272	CvPADLIST (cv) = CvPADLIST (cp);
241	CvPADLIST (cp) = 0;	273	CvPADLIST (cp) = 0;
242	SvREFCNT_dec (cp);	274	SvREFCNT_dec (cp);
…		…
269	}	301	}
270		302
271	#define SB do {	303	#define SB do {
272	#define SE } while (0)	304	#define SE } while (0)
273		305
274	#define LOAD(state) load_state((state));
275	#define SAVE(state,flags) save_state((state),(flags));
276
277	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	306	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
278		307
279	static void	308	static void
280	load_state(Coro__State c)	309	load_perl (Coro__State c)
281	{	310	{
282	#define VAR(name,type) PL_ ## name = c->name;	311	#define VAR(name,type) PL_ ## name = c->name;
283	# include "state.h"	312	# include "state.h"
284	#undef VAR	313	#undef VAR
285		314
286	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	315	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
287	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	316	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
288	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	317	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		318	if (c->irssv)
		319	{
		320	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		321	SvREFCNT_dec (c->irssv);
		322	else
		323	{
		324	REPLACE_SV (PL_rs, c->irssv);
		325	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
		326	sv_setsv (c->irssv_sv, PL_rs);
		327	}
		328	}
289		329
290	{	330	{
291	dSP;	331	dSP;
292	CV *cv;	332	CV *cv;
293		333
…		…
302	PUTBACK;	342	PUTBACK;
303	}	343	}
304	}	344	}
305		345
306	static void	346	static void
307	save_state(Coro__State c, int flags)	347	save_perl (Coro__State c)
308	{	348	{
309	{	349	{
310	dSP;	350	dSP;
311	I32 cxix = cxstack_ix;	351	I32 cxix = cxstack_ix;
312	PERL_CONTEXT *ccstk = cxstack;	352	PERL_CONTEXT *ccstk = cxstack;
…		…
315	/*	355	/*
316	* the worst thing you can imagine happens first - we have to save	356	* the worst thing you can imagine happens first - we have to save
317	* (and reinitialize) all cv's in the whole callchain :(	357	* (and reinitialize) all cv's in the whole callchain :(
318	*/	358	*/
319		359
		360	EXTEND (SP, 3 + 1);
320	PUSHs (Nullsv);	361	PUSHs (Nullsv);
321	/* this loop was inspired by pp_caller */	362	/* this loop was inspired by pp_caller */
322	for (;;)	363	for (;;)
323	{	364	{
324	while (cxix >= 0)	365	while (cxix >= 0)
325	{	366	{
326	PERL_CONTEXT *cx = &ccstk[cxix--];	367	PERL_CONTEXT *cx = &ccstk[cxix--];
327		368
328	if (CxTYPE(cx) == CXt_SUB)	369	if (CxTYPE (cx) == CXt_SUB)
329	{	370	{
330	CV *cv = cx->blk_sub.cv;	371	CV *cv = cx->blk_sub.cv;
331		372
332	if (CvDEPTH (cv))	373	if (CvDEPTH (cv))
333	{	374	{
334	EXTEND (SP, 3);	375	EXTEND (SP, 3);
335
336	PUSHs ((SV *)CvPADLIST(cv));	376	PUSHs ((SV *)CvPADLIST (cv));
337	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	377	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
338	PUSHs ((SV *)cv);	378	PUSHs ((SV *)cv);
339		379
340	CvDEPTH (cv) = 0;	380	CvDEPTH (cv) = 0;
341	get_padlist (cv);	381	get_padlist (cv);
342	}	382	}
343	}	383	}
344	#ifdef CXt_FORMAT
345	else if (CxTYPE(cx) == CXt_FORMAT)
346	{
347	/* I never used formats, so how should I know how these are implemented? */
348	/* my bold guess is as a simple, plain sub... */
349	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
350	}
351	#endif
352	}	384	}
353		385
354	if (top_si->si_type == PERLSI_MAIN)	386	if (top_si->si_type == PERLSI_MAIN)
355	break;	387	break;
356		388
…		…
360	}	392	}
361		393
362	PUTBACK;	394	PUTBACK;
363	}	395	}
364		396
365	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	397	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
366	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	398	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
367	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	399	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		400	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
368		401
369	#define VAR(name,type)c->name = PL_ ## name;	402	#define VAR(name,type)c->name = PL_ ## name;
370	# include "state.h"	403	# include "state.h"
371	#undef VAR	404	#undef VAR
372	}	405	}
…		…
375	* allocate various perl stacks. This is an exact copy	408	* allocate various perl stacks. This is an exact copy
376	* of perl.c:init_stacks, except that it uses less memory	409	* of perl.c:init_stacks, except that it uses less memory
377	* on the (sometimes correct) assumption that coroutines do	410	* on the (sometimes correct) assumption that coroutines do
378	* not usually need a lot of stackspace.	411	* not usually need a lot of stackspace.
379	*/	412	*/
		413	#if PREFER_PERL_FUNCTIONS
		414	# define coro_init_stacks init_stacks
		415	#else
380	static void	416	static void
381	coro_init_stacks ()	417	coro_init_stacks ()
382	{	418	{
383	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	419	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
384	PL_curstackinfo->si_type = PERLSI_MAIN;	420	PL_curstackinfo->si_type = PERLSI_MAIN;
385	PL_curstack = PL_curstackinfo->si_stack;	421	PL_curstack = PL_curstackinfo->si_stack;
386	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	422	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
387		423
388	PL_stack_base = AvARRAY(PL_curstack);	424	PL_stack_base = AvARRAY(PL_curstack);
389	PL_stack_sp = PL_stack_base;	425	PL_stack_sp = PL_stack_base;
390	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	426	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
391		427
392	New(50,PL_tmps_stack,96,SV*);	428	New(50,PL_tmps_stack,128,SV*);
393	PL_tmps_floor = -1;	429	PL_tmps_floor = -1;
394	PL_tmps_ix = -1;	430	PL_tmps_ix = -1;
395	PL_tmps_max = 96;	431	PL_tmps_max = 128;
396		432
397	New(54,PL_markstack,16,I32);	433	New(54,PL_markstack,32,I32);
398	PL_markstack_ptr = PL_markstack;	434	PL_markstack_ptr = PL_markstack;
399	PL_markstack_max = PL_markstack + 16;	435	PL_markstack_max = PL_markstack + 32;
400		436
401	#ifdef SET_MARK_OFFSET	437	#ifdef SET_MARK_OFFSET
402	SET_MARK_OFFSET;	438	SET_MARK_OFFSET;
403	#endif	439	#endif
404		440
405	New(54,PL_scopestack,16,I32);	441	New(54,PL_scopestack,32,I32);
406	PL_scopestack_ix = 0;	442	PL_scopestack_ix = 0;
407	PL_scopestack_max = 16;	443	PL_scopestack_max = 32;
408		444
409	New(54,PL_savestack,96,ANY);	445	New(54,PL_savestack,64,ANY);
410	PL_savestack_ix = 0;	446	PL_savestack_ix = 0;
411	PL_savestack_max = 96;	447	PL_savestack_max = 64;
412		448
413	#if !PERL_VERSION_ATLEAST (5,9,0)	449	#if !PERL_VERSION_ATLEAST (5,9,0)
414	New(54,PL_retstack,8,OP*);	450	New(54,PL_retstack,16,OP*);
415	PL_retstack_ix = 0;	451	PL_retstack_ix = 0;
416	PL_retstack_max = 8;	452	PL_retstack_max = 16;
417	#endif	453	#endif
418	}	454	}
		455	#endif
419		456
420	/*	457	/*
421	* destroy the stacks, the callchain etc...	458	* destroy the stacks, the callchain etc...
422	*/	459	*/
423	static void	460	static void
424	coro_destroy_stacks ()	461	coro_destroy_stacks ()
425	{	462	{
426	if (!IN_DESTRUCT)	463	if (!IN_DESTRUCT)
427	{	464	{
428	/* is this ugly, I ask? */	465	/* restore all saved variables and stuff */
429	LEAVE_SCOPE (0);	466	LEAVE_SCOPE (0);
		467	assert (PL_tmps_floor == -1);
430		468
431	/* sure it is, but more important: is it correct?? :/ */	469	/* free all temporaries */
432	FREETMPS;	470	FREETMPS;
		471	assert (PL_tmps_ix == -1);
433		472
434	/POPSTACK_TO (PL_mainstack);//D//use/	473	POPSTACK_TO (PL_mainstack);
435	}	474	}
436		475
437	while (PL_curstackinfo->si_next)	476	while (PL_curstackinfo->si_next)
438	PL_curstackinfo = PL_curstackinfo->si_next;	477	PL_curstackinfo = PL_curstackinfo->si_next;
439		478
440	while (PL_curstackinfo)	479	while (PL_curstackinfo)
441	{	480	{
442	PERL_SI *p = PL_curstackinfo->si_prev;	481	PERL_SI *p = PL_curstackinfo->si_prev;
443		482
444	{ /D//remove/
445	dSP;
446	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
447	PUTBACK; /* possibly superfluous */
448	}
449
450	if (!IN_DESTRUCT)	483	if (!IN_DESTRUCT)
451	{
452	dounwind (-1);/D//remove/
453	SvREFCNT_dec (PL_curstackinfo->si_stack);	484	SvREFCNT_dec (PL_curstackinfo->si_stack);
454	}
455		485
456	Safefree (PL_curstackinfo->si_cxstack);	486	Safefree (PL_curstackinfo->si_cxstack);
457	Safefree (PL_curstackinfo);	487	Safefree (PL_curstackinfo);
458	PL_curstackinfo = p;	488	PL_curstackinfo = p;
459	}	489	}
…		…
474	* emulate part of the perl startup here.	504	* emulate part of the perl startup here.
475	*/	505	*/
476		506
477	coro_init_stacks ();	507	coro_init_stacks ();
478		508
479	PL_curcop = 0;	509	PL_curcop = &PL_compiling;
480	PL_in_eval = 0;	510	PL_in_eval = EVAL_NULL;
481	PL_curpm = 0;	511	PL_curpm = 0;
		512	PL_localizing = 0;
		513	PL_dirty = 0;
		514	PL_restartop = 0;
482		515
483	{	516	{
484	dSP;	517	dSP;
485	LOGOP myop;	518	LOGOP myop;
486		519
487	/* I have no idea why this is needed, but it is */
488	PUSHMARK (SP);
489
490	SvREFCNT_dec (GvAV (PL_defgv));	520	SvREFCNT_dec (GvAV (PL_defgv));
491	GvAV (PL_defgv) = coro->args; coro->args = 0;	521	GvAV (PL_defgv) = coro->args; coro->args = 0;
492		522
493	Zero (&myop, 1, LOGOP);	523	Zero (&myop, 1, LOGOP);
494	myop.op_next = Nullop;	524	myop.op_next = Nullop;
495	myop.op_flags = OPf_WANT_VOID;	525	myop.op_flags = OPf_WANT_VOID;
496		526
497	PL_op = (OP *)&myop;
498
499	PUSHMARK (SP);	527	PUSHMARK (SP);
500	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	528	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
501	PUTBACK;	529	PUTBACK;
		530	PL_op = (OP *)&myop;
502	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	531	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
503	SPAGAIN;	532	SPAGAIN;
504
505	ENTER; /* necessary e.g. for dounwind */
506	}	533	}
		534
		535	ENTER; /* necessary e.g. for dounwind */
507	}	536	}
508		537
509	static void	538	static void
510	free_coro_mortal ()	539	free_coro_mortal ()
511	{	540	{
…		…
514	SvREFCNT_dec (coro_mortal);	543	SvREFCNT_dec (coro_mortal);
515	coro_mortal = 0;	544	coro_mortal = 0;
516	}	545	}
517	}	546	}
518		547
		548	/* inject a fake call to Coro::State::_cctx_init into the execution */
519	static void NOINLINE	549	static void NOINLINE
520	prepare_cctx (coro_cctx *cctx)	550	prepare_cctx (coro_cctx *cctx)
521	{	551	{
522	dSP;	552	dSP;
523	LOGOP myop;	553	LOGOP myop;
524		554
525	Zero (&myop, 1, LOGOP);	555	Zero (&myop, 1, LOGOP);
526	myop.op_next = PL_op;	556	myop.op_next = PL_op;
527	myop.op_flags = OPf_WANT_VOID;	557	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
528
529	sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx));
530		558
531	PUSHMARK (SP);	559	PUSHMARK (SP);
		560	EXTEND (SP, 2);
		561	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));
532	XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	562	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
533	PUTBACK;	563	PUTBACK;
		564	PL_op = (OP *)&myop;
534	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);	565	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
535	SPAGAIN;	566	SPAGAIN;
536	}	567	}
537		568
538	static void	569	static void
539	coro_run (void *arg)	570	coro_run (void *arg)
540	{	571	{
541	/* coro_run is the alternative epilogue of transfer() */	572	/* coro_run is the alternative tail of transfer(), so unlock here. */
542	UNLOCK;	573	UNLOCK;
543		574
544	/*	575	/*
545	* this is a _very_ stripped down perl interpreter ;)	576	* this is a _very_ stripped down perl interpreter ;)
546	*/	577	*/
…		…
548		579
549	/* inject call to cctx_init */	580	/* inject call to cctx_init */
550	prepare_cctx ((coro_cctx *)arg);	581	prepare_cctx ((coro_cctx *)arg);
551		582
552	/* somebody will hit me for both perl_run and PL_restartop */	583	/* somebody will hit me for both perl_run and PL_restartop */
		584	PL_restartop = PL_op;
553	perl_run (PL_curinterp);	585	perl_run (PL_curinterp);
554		586
555	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	587	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
556	abort ();	588	abort ();
557	}	589	}
…		…
561	{	593	{
562	coro_cctx *cctx;	594	coro_cctx *cctx;
563		595
564	++cctx_count;	596	++cctx_count;
565		597
566	New (0, cctx, 1, coro_cctx);	598	Newz (0, cctx, 1, coro_cctx);
567		599
568	#if HAVE_MMAP	600	#if HAVE_MMAP
569		601
570	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	602	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
571	/* mmap suppsedly does allocate-on-write for us */	603	/* mmap supposedly does allocate-on-write for us */
572	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	604	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
573		605
574	if (cctx->sptr == (void *)-1)	606	if (cctx->sptr == (void *)-1)
575	{	607	{
576	perror ("FATAL: unable to mmap stack for coroutine");	608	perror ("FATAL: unable to mmap stack for coroutine");
…		…
605		637
606	return cctx;	638	return cctx;
607	}	639	}
608		640
609	static void	641	static void
610	cctx_free (coro_cctx *cctx)	642	cctx_destroy (coro_cctx *cctx)
611	{	643	{
612	if (!cctx)	644	if (!cctx)
613	return;	645	return;
614		646
615	--cctx_count;	647	--cctx_count;
…		…
632	{	664	{
633	coro_cctx *cctx;	665	coro_cctx *cctx;
634		666
635	if (cctx_first)	667	if (cctx_first)
636	{	668	{
637	--cctx_idle;
638	cctx = cctx_first;	669	cctx = cctx_first;
639	cctx_first = cctx->next;	670	cctx_first = cctx->next;
		671	--cctx_idle;
640	}	672	}
641	else	673	else
642	{	674	{
643	cctx = cctx_new ();	675	cctx = cctx_new ();
644	PL_op = PL_op->op_next;	676	PL_op = PL_op->op_next;
…		…
648	}	680	}
649		681
650	static void	682	static void
651	cctx_put (coro_cctx *cctx)	683	cctx_put (coro_cctx *cctx)
652	{	684	{
		685	/* free another cctx if overlimit */
		686	if (cctx_idle >= MAX_IDLE_CCTX)
		687	{
		688	coro_cctx *first = cctx_first;
		689	cctx_first = first->next;
		690	--cctx_idle;
		691
		692	assert (!first->inuse);
		693	cctx_destroy (first);
		694	}
		695
653	++cctx_idle;	696	++cctx_idle;
654	cctx->next = cctx_first;	697	cctx->next = cctx_first;
655	cctx_first = cctx;	698	cctx_first = cctx;
656	}	699	}
657		700
658	/* never call directly, always through the coro_state_transfer global variable */	701	/* never call directly, always through the coro_state_transfer global variable */
659	static void NOINLINE	702	static void NOINLINE
660	transfer (struct coro prev, struct coro next, int flags)	703	transfer (struct coro prev, struct coro next)
661	{	704	{
662	dSTACKLEVEL;	705	dSTACKLEVEL;
663		706
664	/* sometimes transfer is only called to set idle_sp */	707	/* sometimes transfer is only called to set idle_sp */
665	if (flags == TRANSFER_SET_STACKLEVEL)	708	if (!next)
		709	{
666	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	710	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
		711	assert (((coro_cctx )prev)->top_env = PL_top_env); / just for the side effetc when assert is enabled */
		712	}
667	else if (prev != next)	713	else if (prev != next)
668	{	714	{
669	coro_cctx *prev__cctx;	715	coro_cctx *prev__cctx;
670		716
		717	if (prev->flags & CF_NEW)
		718	{
		719	/* create a new empty context */
		720	Newz (0, prev->cctx, 1, coro_cctx);
		721	prev->cctx->inuse = 1;
		722	prev->flags &= ~CF_NEW;
		723	prev->flags \|= CF_RUNNING;
		724	}
		725
		726	/TODO: must not croak here /
		727	if (!prev->flags & CF_RUNNING)
		728	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
		729
		730	if (next->flags & CF_RUNNING)
		731	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		732
		733	prev->flags &= ~CF_RUNNING;
		734	next->flags \|= CF_RUNNING;
		735
671	LOCK;	736	LOCK;
672		737
673	if (next->mainstack)	738	if (next->flags & CF_NEW)
674	{	739	{
675	/* coroutine already started */	740	/* need to start coroutine */
676	SAVE (prev, flags);	741	next->flags &= ~CF_NEW;
677	LOAD (next);	742	/* first get rid of the old state */
		743	save_perl (prev);
		744	/* setup coroutine call */
		745	setup_coro (next);
		746	/* need a new stack */
		747	assert (!next->cctx);
678	}	748	}
679	else	749	else
680	{	750	{
681	/* need to start coroutine */	751	/* coroutine already started */
682	/* first get rid of the old state */	752	save_perl (prev);
683	SAVE (prev, -1);	753	load_perl (next);
684	/* setup coroutine call */
685	setup_coro (next);
686	/* need a stack */
687	next->cctx = 0;
688	}	754	}
689
690	if (!prev->cctx)
691	/* create a new empty context */
692	Newz (0, prev->cctx, 1, coro_cctx);
693		755
694	prev__cctx = prev->cctx;	756	prev__cctx = prev->cctx;
695		757
696	/* possibly "free" the cctx */	758	/* possibly "free" the cctx */
697	if (prev__cctx->idle_sp == STACKLEVEL)	759	if (prev__cctx->idle_sp == STACKLEVEL)
698	{	760	{
		761	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
		762	assert (PL_top_env == prev__cctx->top_env);
		763
		764	prev->cctx = 0;
		765
699	cctx_put (prev__cctx);	766	cctx_put (prev__cctx);
700	prev->cctx = 0;	767	prev__cctx->inuse = 0;
701	}	768	}
702		769
703	if (!next->cctx)	770	if (!next->cctx)
		771	{
704	next->cctx = cctx_get ();	772	next->cctx = cctx_get ();
		773	assert (!next->cctx->inuse);
		774	next->cctx->inuse = 1;
		775	}
705		776
706	if (prev__cctx != next->cctx)	777	if (prev__cctx != next->cctx)
707	{	778	{
708	prev__cctx->top_env = PL_top_env;	779	prev__cctx->top_env = PL_top_env;
709	PL_top_env = next->cctx->top_env;	780	PL_top_env = next->cctx->top_env;
…		…
717	}	788	}
718		789
719	struct transfer_args	790	struct transfer_args
720	{	791	{
721	struct coro prev, next;	792	struct coro prev, next;
722	int flags;
723	};	793	};
724		794
725	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)	795	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
726		796
727	static void	797	static void
728	coro_state_destroy (struct coro *coro)	798	coro_state_destroy (struct coro *coro)
729	{	799	{
730	if (coro->refcnt--)	800	if (coro->refcnt--)
731	return;	801	return;
732		802
733	if (coro->mainstack && coro->mainstack != main_mainstack)	803	if (coro->mainstack && coro->mainstack != main_mainstack)
734	{	804	{
735	struct coro temp;	805	struct coro temp;
		806	Zero (&temp, 1, struct coro);
		807	temp.save = CORO_SAVE_ALL;
736		808
737	SAVE ((&temp), TRANSFER_SAVE_ALL);	809	if (coro->flags & CF_RUNNING)
738	LOAD (coro);	810	croak ("FATAL: tried to destroy currently running coroutine");
		811
		812	save_perl (&temp);
		813	load_perl (coro);
739		814
740	coro_destroy_stacks ();	815	coro_destroy_stacks ();
741		816
742	LOAD ((&temp)); /* this will get rid of defsv etc.. */	817	load_perl (&temp); /* this will get rid of defsv etc.. */
743		818
744	coro->mainstack = 0;	819	coro->mainstack = 0;
745	}	820	}
746		821
747	cctx_free (coro->cctx);	822	cctx_destroy (coro->cctx);
748	SvREFCNT_dec (coro->args);	823	SvREFCNT_dec (coro->args);
749	Safefree (coro);	824	Safefree (coro);
750	}	825	}
751		826
752	static int	827	static int
…		…
802	assert (mg->mg_type == PERL_MAGIC_ext);	877	assert (mg->mg_type == PERL_MAGIC_ext);
803	return (struct coro *)mg->mg_ptr;	878	return (struct coro *)mg->mg_ptr;
804	}	879	}
805		880
806	static void	881	static void
807	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)	882	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)
808	{	883	{
809	ta->prev = SvSTATE (prev);	884	ta->prev = SvSTATE (prev_sv);
810	ta->next = SvSTATE (next);	885	ta->next = SvSTATE (next_sv);
811	ta->flags = flags;
812	}	886	}
813		887
814	static void	888	static void
815	api_transfer (SV prev, SV next, int flags)	889	api_transfer (SV prev_sv, SV next_sv)
816	{	890	{
817	dTHX;
818	struct transfer_args ta;	891	struct transfer_args ta;
819		892
820	prepare_transfer (&ta, prev, next, flags);	893	prepare_transfer (&ta, prev_sv, next_sv);
821	TRANSFER (ta);	894	TRANSFER (ta);
		895	}
		896
		897	static int
		898	api_save (SV *coro_sv, int new_save)
		899	{
		900	struct coro *coro = SvSTATE (coro_sv);
		901	int old_save = coro->save;
		902
		903	if (new_save >= 0)
		904	coro->save = new_save;
		905
		906	return old_save;
822	}	907	}
823		908
824	/ Coro ******************************************************************/	909	/ Coro ******************************************************************/
825		910
826	#define PRIO_MAX 3	911	#define PRIO_MAX 3
…		…
829	#define PRIO_LOW -1	914	#define PRIO_LOW -1
830	#define PRIO_IDLE -3	915	#define PRIO_IDLE -3
831	#define PRIO_MIN -4	916	#define PRIO_MIN -4
832		917
833	/* for Coro.pm */	918	/* for Coro.pm */
834	static GV coro_current, coro_idle;	919	static SV *coro_current;
835	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	920	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
836	static int coro_nready;	921	static int coro_nready;
837		922
838	static void	923	static void
839	coro_enq (SV *sv)	924	coro_enq (SV *coro_sv)
840	{	925	{
841	int prio;
842
843	if (SvTYPE (sv) != SVt_PVHV)
844	croak ("Coro::ready tried to enqueue something that is not a coroutine");
845
846	prio = SvSTATE (sv)->prio;
847
848	av_push (coro_ready [prio - PRIO_MIN], sv);	926	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
849	coro_nready++;	927	coro_nready++;
850	}	928	}
851		929
852	static SV *	930	static SV *
853	coro_deq (int min_prio)	931	coro_deq (int min_prio)
…		…
866	}	944	}
867		945
868	return 0;	946	return 0;
869	}	947	}
870		948
871	static void	949	static int
872	api_ready (SV *coro)	950	api_ready (SV *coro_sv)
873	{	951	{
874	dTHX;	952	struct coro *coro;
875		953
876	if (SvROK (coro))	954	if (SvROK (coro_sv))
877	coro = SvRV (coro);	955	coro_sv = SvRV (coro_sv);
		956
		957	coro = SvSTATE (coro_sv);
		958
		959	if (coro->flags & CF_READY)
		960	return 0;
		961
		962	coro->flags \|= CF_READY;
878		963
879	LOCK;	964	LOCK;
880	coro_enq (SvREFCNT_inc (coro));	965	coro_enq (SvREFCNT_inc (coro_sv));
881	UNLOCK;	966	UNLOCK;
		967
		968	return 1;
		969	}
		970
		971	static int
		972	api_is_ready (SV *coro_sv)
		973	{
		974	return !!SvSTATE (coro_sv)->flags & CF_READY;
882	}	975	}
883		976
884	static void	977	static void
885	prepare_schedule (struct transfer_args *ta)	978	prepare_schedule (struct transfer_args *ta)
886	{	979	{
887	SV current, prev, *next;	980	SV prev, next;
888
889	current = GvSV (coro_current);
890		981
891	for (;;)	982	for (;;)
892	{	983	{
893	LOCK;	984	LOCK;
894	next = coro_deq (PRIO_MIN);	985	next = coro_deq (PRIO_MIN);
…		…
903	ENTER;	994	ENTER;
904	SAVETMPS;	995	SAVETMPS;
905		996
906	PUSHMARK (SP);	997	PUSHMARK (SP);
907	PUTBACK;	998	PUTBACK;
908	call_sv (GvSV (coro_idle), G_DISCARD);	999	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
909		1000
910	FREETMPS;	1001	FREETMPS;
911	LEAVE;	1002	LEAVE;
912	}	1003	}
913	}	1004	}
914		1005
915	prev = SvRV (current);	1006	prev = SvRV (coro_current);
916	SvRV (current) = next;	1007	SvRV_set (coro_current, next);
917		1008
918	/* free this only after the transfer */	1009	/* free this only after the transfer */
919	LOCK;	1010	LOCK;
920	free_coro_mortal ();	1011	free_coro_mortal ();
921	UNLOCK;	1012	UNLOCK;
922	coro_mortal = prev;	1013	coro_mortal = prev;
923		1014
		1015	assert (!SvROK(prev));//D
		1016	assert (!SvROK(next));//D
		1017
924	ta->prev = SvSTATE (prev);	1018	ta->prev = SvSTATE (prev);
925	ta->next = SvSTATE (next);	1019	ta->next = SvSTATE (next);
926	ta->flags = TRANSFER_SAVE_ALL;	1020
		1021	assert (ta->next->flags & CF_READY);
		1022	ta->next->flags &= ~CF_READY;
927	}	1023	}
928		1024
929	static void	1025	static void
930	prepare_cede (struct transfer_args *ta)	1026	prepare_cede (struct transfer_args *ta)
931	{	1027	{
932	LOCK;	1028	api_ready (coro_current);
933	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
934	UNLOCK;
935		1029
936	prepare_schedule (ta);	1030	prepare_schedule (ta);
937	}	1031	}
938		1032
939	static void	1033	static void
940	api_schedule (void)	1034	api_schedule (void)
941	{	1035	{
942	dTHX;
943	struct transfer_args ta;	1036	struct transfer_args ta;
944		1037
945	prepare_schedule (&ta);	1038	prepare_schedule (&ta);
946	TRANSFER (ta);	1039	TRANSFER (ta);
947	}	1040	}
948		1041
949	static void	1042	static void
950	api_cede (void)	1043	api_cede (void)
951	{	1044	{
952	dTHX;
953	struct transfer_args ta;	1045	struct transfer_args ta;
954		1046
955	prepare_cede (&ta);	1047	prepare_cede (&ta);
956	TRANSFER (ta);	1048	TRANSFER (ta);
957	}	1049	}
…		…
967	#endif	1059	#endif
968	BOOT_PAGESIZE;	1060	BOOT_PAGESIZE;
969		1061
970	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1062	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
971		1063
972	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1064	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
973	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1065	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
974	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1066	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
		1067	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1068	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
975		1069
976	main_mainstack = PL_mainstack;	1070	main_mainstack = PL_mainstack;
977		1071
978	coroapi.ver = CORO_API_VERSION;	1072	coroapi.ver = CORO_API_VERSION;
979	coroapi.transfer = api_transfer;	1073	coroapi.transfer = api_transfer;
…		…
989	HV *hv;	1083	HV *hv;
990	int i;	1084	int i;
991		1085
992	Newz (0, coro, 1, struct coro);	1086	Newz (0, coro, 1, struct coro);
993	coro->args = newAV ();	1087	coro->args = newAV ();
		1088	coro->save = CORO_SAVE_ALL;
		1089	coro->flags = CF_NEW;
994		1090
995	hv = newHV ();	1091	hv = newHV ();
996	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1092	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
997	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1093	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
998		1094
999	for (i = 1; i < items; i++)	1095	for (i = 1; i < items; i++)
1000	av_push (coro->args, newSVsv (ST (i)));	1096	av_push (coro->args, newSVsv (ST (i)));
1001	}	1097	}
1002	OUTPUT:	1098	OUTPUT:
		1099	RETVAL
		1100
		1101	int
		1102	save (SV *coro, int new_save = -1)
		1103	CODE:
		1104	RETVAL = api_save (coro, new_save);
		1105	OUTPUT:
1003	RETVAL	1106	RETVAL
1004		1107
1005	void	1108	void
1006	_set_stacklevel (...)	1109	_set_stacklevel (...)
1007	ALIAS:	1110	ALIAS:
1008	Coro::State::transfer = 1	1111	Coro::State::transfer = 1
1009	Coro::schedule = 2	1112	Coro::schedule = 2
1010	Coro::cede = 3	1113	Coro::cede = 3
1011	Coro::Cont::yield = 4
1012	CODE:	1114	CODE:
1013	{	1115	{
1014	struct transfer_args ta;	1116	struct transfer_args ta;
1015		1117
1016	switch (ix)	1118	switch (ix)
1017	{	1119	{
1018	case 0:	1120	case 0:
1019	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1121	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1020	ta.next = 0;	1122	ta.next = 0;
1021	ta.flags = TRANSFER_SET_STACKLEVEL;
1022	break;	1123	break;
1023		1124
1024	case 1:	1125	case 1:
1025	if (items != 3)	1126	if (items != 2)
1026	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);	1127	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1027		1128
1028	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));	1129	prepare_transfer (&ta, ST (0), ST (1));
1029	break;	1130	break;
1030		1131
1031	case 2:	1132	case 2:
1032	prepare_schedule (&ta);	1133	prepare_schedule (&ta);
1033	break;	1134	break;
1034		1135
1035	case 3:	1136	case 3:
1036	prepare_cede (&ta);	1137	prepare_cede (&ta);
1037	break;	1138	break;
1038
1039	case 4:
1040	{
1041	SV *yieldstack;
1042	SV *sv;
1043	AV *defav = GvAV (PL_defgv);
1044
1045	yieldstack = *hv_fetch (
1046	(HV *)SvRV (GvSV (coro_current)),
1047	"yieldstack", sizeof ("yieldstack") - 1,
1048	0
1049	);
1050
1051	/* set up @_ -- ugly */
1052	av_clear (defav);
1053	av_fill (defav, items - 1);
1054	while (items--)
1055	av_store (defav, items, SvREFCNT_inc (ST(items)));
1056
1057	sv = av_pop ((AV *)SvRV (yieldstack));
1058	ta.prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
1059	ta.next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
1060	ta.flags = 0;
1061	SvREFCNT_dec (sv);
1062	}
1063	break;
1064
1065	}	1139	}
1066		1140
1067	TRANSFER (ta);	1141	TRANSFER (ta);
1068	}	1142	}
1069		1143
…		…
1113	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1187	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1114	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1188	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1115	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1189	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1116	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1190	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1117		1191
1118	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1192	coro_current = get_sv ("Coro::current", FALSE);
1119	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1193	SvREADONLY_on (coro_current);
1120		1194
1121	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1195	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1122	coro_ready[i] = newAV ();	1196	coro_ready[i] = newAV ();
1123		1197
1124	{	1198	{
1125	SV *sv = perl_get_sv("Coro::API", 1);	1199	SV *sv = perl_get_sv("Coro::API", 1);
1126		1200
1127	coroapi.schedule = api_schedule;	1201	coroapi.schedule = api_schedule;
		1202	coroapi.save = api_save;
1128	coroapi.cede = api_cede;	1203	coroapi.cede = api_cede;
1129	coroapi.ready = api_ready;	1204	coroapi.ready = api_ready;
		1205	coroapi.is_ready = api_is_ready;
1130	coroapi.nready = &coro_nready;	1206	coroapi.nready = &coro_nready;
1131	coroapi.current = coro_current;	1207	coroapi.current = coro_current;
1132		1208
1133	GCoroAPI = &coroapi;	1209	GCoroAPI = &coroapi;
1134	sv_setiv (sv, (IV)&coroapi);	1210	sv_setiv (sv, (IV)&coroapi);
1135	SvREADONLY_on (sv);	1211	SvREADONLY_on (sv);
1136	}	1212	}
1137	}	1213	}
		1214
		1215	void
		1216	_set_current (SV *current)
		1217	PROTOTYPE: $
		1218	CODE:
		1219	SvREFCNT_dec (SvRV (coro_current));
		1220	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1138		1221
1139	int	1222	int
1140	prio (Coro::State coro, int newprio = 0)	1223	prio (Coro::State coro, int newprio = 0)
1141	ALIAS:	1224	ALIAS:
1142	nice = 1	1225	nice = 1
…		…
1145	RETVAL = coro->prio;	1228	RETVAL = coro->prio;
1146		1229
1147	if (items > 1)	1230	if (items > 1)
1148	{	1231	{
1149	if (ix)	1232	if (ix)
1150	newprio += coro->prio;	1233	newprio = coro->prio - newprio;
1151		1234
1152	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1235	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
1153	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1236	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
1154		1237
1155	coro->prio = newprio;	1238	coro->prio = newprio;
1156	}	1239	}
1157	}	1240	}
1158		1241
1159	void	1242	SV *
1160	ready (SV *self)	1243	ready (SV *self)
1161	PROTOTYPE: $	1244	PROTOTYPE: $
1162	CODE:	1245	CODE:
1163	api_ready (self);	1246	RETVAL = boolSV (api_ready (self));
		1247	OUTPUT:
		1248	RETVAL
		1249
		1250	SV *
		1251	is_ready (SV *self)
		1252	PROTOTYPE: $
		1253	CODE:
		1254	RETVAL = boolSV (api_is_ready (self));
		1255	OUTPUT:
		1256	RETVAL
1164		1257
1165	int	1258	int
1166	nready (...)	1259	nready (...)
1167	PROTOTYPE:	1260	PROTOTYPE:
1168	CODE:	1261	CODE:
…		…
1174		1267
1175	SV *	1268	SV *
1176	_get_state ()	1269	_get_state ()
1177	CODE:	1270	CODE:
1178	{	1271	{
1179	struct {	1272	struct io_state *data;
1180	int errorno;
1181	int laststype;
1182	int laststatval;
1183	Stat_t statcache;
1184	} data;
1185		1273
		1274	RETVAL = newSV (sizeof (struct io_state));
		1275	data = (struct io_state *)SvPVX (RETVAL);
		1276	SvCUR_set (RETVAL, sizeof (struct io_state));
		1277	SvPOK_only (RETVAL);
		1278
1186	data.errorno = errno;	1279	data->errorno = errno;
1187	data.laststype = PL_laststype;	1280	data->laststype = PL_laststype;
1188	data.laststatval = PL_laststatval;	1281	data->laststatval = PL_laststatval;
1189	data.statcache = PL_statcache;	1282	data->statcache = PL_statcache;
1190
1191	RETVAL = newSVpvn ((char *)&data, sizeof data);
1192	}	1283	}
1193	OUTPUT:	1284	OUTPUT:
1194	RETVAL	1285	RETVAL
1195		1286
1196	void	1287	void
1197	_set_state (char *data_)	1288	_set_state (char *data_)
1198	PROTOTYPE: $	1289	PROTOTYPE: $
1199	CODE:	1290	CODE:
1200	{	1291	{
1201	struct {	1292	struct io_state data = (void )data_;
1202	int errorno;
1203	int laststype;
1204	int laststatval;
1205	Stat_t statcache;
1206	} data = (void )data_;
1207		1293
1208	errno = data->errorno;	1294	errno = data->errorno;
1209	PL_laststype = data->laststype;	1295	PL_laststype = data->laststype;
1210	PL_laststatval = data->laststatval;	1296	PL_laststatval = data->laststatval;
1211	PL_statcache = data->statcache;	1297	PL_statcache = data->statcache;
1212	}	1298	}
		1299

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Comparing Coro/Coro/State.xs (file contents): Revision 1.109 by root, Mon Nov 27 18:45:29 2006 UTC vs. Revision 1.129 by root, Fri Dec 22 04:34:04 2006 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.109 by root, Mon Nov 27 18:45:29 2006 UTC vs.
Revision 1.129 by root, Fri Dec 22 04:34:04 2006 UTC