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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.106 by root, Mon Nov 27 02:08:55 2006 UTC vs.
Revision 1.122 by root, Mon Dec 4 13:47:56 2006 UTC

…		…
7	#include "patchlevel.h"	7	#include "patchlevel.h"
8		8
9	#if USE_VALGRIND	9	#if USE_VALGRIND
10	# include <valgrind/valgrind.h>	10	# include <valgrind/valgrind.h>
11	#endif	11	#endif
		12
		13	/* the maximum number of idle cctx that will be pooled */
		14	#define MAX_IDLE_CCTX 8
12		15
13	#define PERL_VERSION_ATLEAST(a,b,c) \	16	#define PERL_VERSION_ATLEAST(a,b,c) \
14	(PERL_REVISION > (a) \	17	(PERL_REVISION > (a) \
15	\|\| (PERL_REVISION == (a) \	18	\|\| (PERL_REVISION == (a) \
16	&& (PERL_VERSION > (b) \	19	&& (PERL_VERSION > (b) \
…		…
87		90
88	#define NOINLINE attribute ((noinline))	91	#define NOINLINE attribute ((noinline))
89		92
90	#include "CoroAPI.h"	93	#include "CoroAPI.h"
91		94
92	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
93
94	#ifdef USE_ITHREADS	95	#ifdef USE_ITHREADS
95	static perl_mutex coro_mutex;	96	static perl_mutex coro_mutex;
96	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	97	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
97	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	98	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
98	#else	99	#else
99	# define LOCK (void)0	100	# define LOCK (void)0
100	# define UNLOCK (void)0	101	# define UNLOCK (void)0
101	#endif	102	#endif
102		103
		104	struct io_state
		105	{
		106	int errorno;
		107	I32 laststype;
		108	int laststatval;
		109	Stat_t statcache;
		110	};
		111
103	static struct CoroAPI coroapi;	112	static struct CoroAPI coroapi;
104	static AV main_mainstack; / used to differentiate between $main and others */	113	static AV main_mainstack; / used to differentiate between $main and others */
105	static HV coro_state_stash, coro_stash;	114	static HV coro_state_stash, coro_stash;
106	static SV coro_mortal; / will be freed after next transfer */	115	static SV coro_mortal; / will be freed after next transfer */
107		116
		117	static struct coro_cctx *cctx_first;
		118	static int cctx_count, cctx_idle;
		119
108	/* this is a structure representing a c-level coroutine */	120	/* this is a structure representing a c-level coroutine */
109	typedef struct coro_cctx {	121	typedef struct coro_cctx {
110	struct coro_cctx *next;	122	struct coro_cctx *next;
111		123
112	/* the stack */	124	/* the stack */
…		…
116	/* cpu state */	128	/* cpu state */
117	void idle_sp; / sp of top-level transfer/schedule/cede call */	129	void idle_sp; / sp of top-level transfer/schedule/cede call */
118	JMPENV *top_env;	130	JMPENV *top_env;
119	coro_context cctx;	131	coro_context cctx;
120		132
		133	int inuse;
		134
121	#if USE_VALGRIND	135	#if USE_VALGRIND
122	int valgrind_id;	136	int valgrind_id;
123	#endif	137	#endif
124	} coro_cctx;	138	} coro_cctx;
		139
		140	enum {
		141	CF_RUNNING = 0x0001, /* coroutine is running */
		142	CF_READY = 0x0002, /* coroutine is ready */
		143	CF_NEW = 0x0004, /* ahs never been switched to */
		144	};
125		145
126	/* this is a structure representing a perl-level coroutine */	146	/* this is a structure representing a perl-level coroutine */
127	struct coro {	147	struct coro {
128	/* the c coroutine allocated to this perl coroutine, if any */	148	/* the c coroutine allocated to this perl coroutine, if any */
129	coro_cctx *cctx;	149	coro_cctx *cctx;
130		150
131	/* data associated with this coroutine (initial args) */	151	/* data associated with this coroutine (initial args) */
132	AV *args;	152	AV *args;
133	int refcnt;	153	int refcnt;
		154	int save; /* CORO_SAVE flags */
		155	int flags; /* CF_ flags */
134		156
135	/* optionally saved, might be zero */	157	/* optionally saved, might be zero */
136	AV *defav;	158	AV defav; / @_ */
137	SV *defsv;	159	SV defsv; / $_ */
138	SV *errsv;	160	SV errsv; / $@ */
		161	SV irssv; / $/ */
139		162
140	/* saved global state not related to stacks */	163	#define VAR(name,type) type name;
141	U8 dowarn;	164	# include "state.h"
142	I32 in_eval;	165	#undef VAR
143
144	/* the stacks and related info (callchain etc..) */
145	PERL_SI *curstackinfo;
146	AV *curstack;
147	AV *mainstack;
148	SV **stack_sp;
149	OP *op;
150	SV **curpad;
151	AV *comppad;
152	CV *compcv;
153	SV **stack_base;
154	SV **stack_max;
155	SV **tmps_stack;
156	I32 tmps_floor;
157	I32 tmps_ix;
158	I32 tmps_max;
159	I32 *markstack;
160	I32 *markstack_ptr;
161	I32 *markstack_max;
162	I32 *scopestack;
163	I32 scopestack_ix;
164	I32 scopestack_max;
165	ANY *savestack;
166	I32 savestack_ix;
167	I32 savestack_max;
168	OP **retstack;
169	I32 retstack_ix;
170	I32 retstack_max;
171	PMOP *curpm;
172	COP *curcop;
173		166
174	/* coro process data */	167	/* coro process data */
175	int prio;	168	int prio;
176	};	169	};
177		170
…		…
241		234
242	#define PERL_MAGIC_coro PERL_MAGIC_ext	235	#define PERL_MAGIC_coro PERL_MAGIC_ext
243		236
244	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	237	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
245		238
		239	#define CORO_MAGIC(cv) \
		240	SvMAGIC (cv) \
		241	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
		242	? SvMAGIC (cv) \
		243	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
		244	: 0
		245
246	/* the next two functions merely cache the padlists */	246	/* the next two functions merely cache the padlists */
247	static void	247	static void
248	get_padlist (CV *cv)	248	get_padlist (CV *cv)
249	{	249	{
250	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	250	MAGIC *mg = CORO_MAGIC (cv);
		251	AV *av;
251		252
252	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	253	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
253	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	254	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
254	else	255	else
255	{	256	{
256	#if 0	257	#if 0
257	/* this is probably cleaner, but also slower? */	258	/* this is probably cleaner, but also slower? */
258	CV *cp = Perl_cv_clone (cv);	259	CV *cp = Perl_cv_clone (cv);
…		…
266	}	267	}
267		268
268	static void	269	static void
269	put_padlist (CV *cv)	270	put_padlist (CV *cv)
270	{	271	{
271	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	272	MAGIC *mg = CORO_MAGIC (cv);
		273	AV *av;
272		274
273	if (!mg)	275	if (!mg)
274	{	276	{
275	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	277	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
276	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	278	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
277	mg->mg_virtual = &vtbl_coro;	279	mg->mg_virtual = &vtbl_coro;
278	mg->mg_obj = (SV *)newAV ();	280	mg->mg_obj = (SV *)newAV ();
279	}	281	}
280		282
281	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));	283	av = (AV *)mg->mg_obj;
		284
		285	if (AvFILLp (av) >= AvMAX (av))
		286	av_extend (av, AvMAX (av) + 1);
		287
		288	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
282	}	289	}
283		290
284	#define SB do {	291	#define SB do {
285	#define SE } while (0)	292	#define SE } while (0)
286		293
287	#define LOAD(state) load_state((state));
288	#define SAVE(state,flags) save_state((state),(flags));
289
290	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	294	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
291		295
292	static void	296	static void
293	load_state(Coro__State c)	297	load_perl (Coro__State c)
294	{	298	{
295	PL_dowarn = c->dowarn;	299	#define VAR(name,type) PL_ ## name = c->name;
296	PL_in_eval = c->in_eval;	300	# include "state.h"
297		301	#undef VAR
298	PL_curstackinfo = c->curstackinfo;
299	PL_curstack = c->curstack;
300	PL_mainstack = c->mainstack;
301	PL_stack_sp = c->stack_sp;
302	PL_op = c->op;
303	PL_curpad = c->curpad;
304	PL_comppad = c->comppad;
305	PL_compcv = c->compcv;
306	PL_stack_base = c->stack_base;
307	PL_stack_max = c->stack_max;
308	PL_tmps_stack = c->tmps_stack;
309	PL_tmps_floor = c->tmps_floor;
310	PL_tmps_ix = c->tmps_ix;
311	PL_tmps_max = c->tmps_max;
312	PL_markstack = c->markstack;
313	PL_markstack_ptr = c->markstack_ptr;
314	PL_markstack_max = c->markstack_max;
315	PL_scopestack = c->scopestack;
316	PL_scopestack_ix = c->scopestack_ix;
317	PL_scopestack_max = c->scopestack_max;
318	PL_savestack = c->savestack;
319	PL_savestack_ix = c->savestack_ix;
320	PL_savestack_max = c->savestack_max;
321	#if !PERL_VERSION_ATLEAST (5,9,0)
322	PL_retstack = c->retstack;
323	PL_retstack_ix = c->retstack_ix;
324	PL_retstack_max = c->retstack_max;
325	#endif
326	PL_curpm = c->curpm;
327	PL_curcop = c->curcop;
328		302
329	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	303	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
330	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	304	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
331	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	305	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		306	if (c->irssv) REPLACE_SV (PL_rs , c->irssv);
332		307
333	{	308	{
334	dSP;	309	dSP;
335	CV *cv;	310	CV *cv;
336		311
337	/* now do the ugly restore mess */	312	/* now do the ugly restore mess */
338	while ((cv = (CV *)POPs))	313	while ((cv = (CV *)POPs))
339	{	314	{
340	AV padlist = (AV )POPs;
341
342	if (padlist)
343	{
344	put_padlist (cv); /* mark this padlist as available */	315	put_padlist (cv); /* mark this padlist as available */
345	CvPADLIST(cv) = padlist;	316	CvDEPTH (cv) = PTR2IV (POPs);
346	}	317	CvPADLIST (cv) = (AV *)POPs;
347
348	++CvDEPTH(cv);
349	}	318	}
350		319
351	PUTBACK;	320	PUTBACK;
352	}	321	}
353	}	322	}
354		323
355	static void	324	static void
356	save_state(Coro__State c, int flags)	325	save_perl (Coro__State c)
357	{	326	{
358	{	327	{
359	dSP;	328	dSP;
360	I32 cxix = cxstack_ix;	329	I32 cxix = cxstack_ix;
361	PERL_CONTEXT *ccstk = cxstack;	330	PERL_CONTEXT *ccstk = cxstack;
…		…
372	{	341	{
373	while (cxix >= 0)	342	while (cxix >= 0)
374	{	343	{
375	PERL_CONTEXT *cx = &ccstk[cxix--];	344	PERL_CONTEXT *cx = &ccstk[cxix--];
376		345
377	if (CxTYPE(cx) == CXt_SUB)	346	if (CxTYPE (cx) == CXt_SUB)
378	{	347	{
379	CV *cv = cx->blk_sub.cv;	348	CV *cv = cx->blk_sub.cv;
		349
380	if (CvDEPTH(cv))	350	if (CvDEPTH (cv))
381	{	351	{
382	EXTEND (SP, CvDEPTH(cv)*2);	352	EXTEND (SP, 3);
383		353
384	while (--CvDEPTH(cv))
385	{
386	/* this tells the restore code to increment CvDEPTH */
387	PUSHs (Nullsv);
388	PUSHs ((SV *)cv);
389	}
390
391	PUSHs ((SV *)CvPADLIST(cv));	354	PUSHs ((SV *)CvPADLIST (cv));
		355	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
392	PUSHs ((SV *)cv);	356	PUSHs ((SV *)cv);
393		357
		358	CvDEPTH (cv) = 0;
394	get_padlist (cv);	359	get_padlist (cv);
395	}	360	}
396	}	361	}
397	#ifdef CXt_FORMAT	362	#ifdef CXt_FORMAT
398	else if (CxTYPE(cx) == CXt_FORMAT)	363	else if (CxTYPE (cx) == CXt_FORMAT)
399	{	364	{
400	/* I never used formats, so how should I know how these are implemented? */	365	/* I never used formats, so how should I know how these are implemented? */
401	/* my bold guess is as a simple, plain sub... */	366	/* my bold guess is as a simple, plain sub... */
402	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	367	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
403	}	368	}
…		…
413	}	378	}
414		379
415	PUTBACK;	380	PUTBACK;
416	}	381	}
417		382
418	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	383	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
419	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	384	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
420	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	385	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		386	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
421		387
422	c->dowarn = PL_dowarn;	388	#define VAR(name,type)c->name = PL_ ## name;
423	c->in_eval = PL_in_eval;	389	# include "state.h"
424		390	#undef VAR
425	c->curstackinfo = PL_curstackinfo;
426	c->curstack = PL_curstack;
427	c->mainstack = PL_mainstack;
428	c->stack_sp = PL_stack_sp;
429	c->op = PL_op;
430	c->curpad = PL_curpad;
431	c->comppad = PL_comppad;
432	c->compcv = PL_compcv;
433	c->stack_base = PL_stack_base;
434	c->stack_max = PL_stack_max;
435	c->tmps_stack = PL_tmps_stack;
436	c->tmps_floor = PL_tmps_floor;
437	c->tmps_ix = PL_tmps_ix;
438	c->tmps_max = PL_tmps_max;
439	c->markstack = PL_markstack;
440	c->markstack_ptr = PL_markstack_ptr;
441	c->markstack_max = PL_markstack_max;
442	c->scopestack = PL_scopestack;
443	c->scopestack_ix = PL_scopestack_ix;
444	c->scopestack_max = PL_scopestack_max;
445	c->savestack = PL_savestack;
446	c->savestack_ix = PL_savestack_ix;
447	c->savestack_max = PL_savestack_max;
448	#if !PERL_VERSION_ATLEAST (5,9,0)
449	c->retstack = PL_retstack;
450	c->retstack_ix = PL_retstack_ix;
451	c->retstack_max = PL_retstack_max;
452	#endif
453	c->curpm = PL_curpm;
454	c->curcop = PL_curcop;
455	}	391	}
456		392
457	/*	393	/*
458	* allocate various perl stacks. This is an exact copy	394	* allocate various perl stacks. This is an exact copy
459	* of perl.c:init_stacks, except that it uses less memory	395	* of perl.c:init_stacks, except that it uses less memory
…		…
461	* not usually need a lot of stackspace.	397	* not usually need a lot of stackspace.
462	*/	398	*/
463	static void	399	static void
464	coro_init_stacks ()	400	coro_init_stacks ()
465	{	401	{
466	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	402	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
467	PL_curstackinfo->si_type = PERLSI_MAIN;	403	PL_curstackinfo->si_type = PERLSI_MAIN;
468	PL_curstack = PL_curstackinfo->si_stack;	404	PL_curstack = PL_curstackinfo->si_stack;
469	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	405	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
470		406
471	PL_stack_base = AvARRAY(PL_curstack);	407	PL_stack_base = AvARRAY(PL_curstack);
472	PL_stack_sp = PL_stack_base;	408	PL_stack_sp = PL_stack_base;
473	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	409	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
474		410
475	New(50,PL_tmps_stack,96,SV*);	411	New(50,PL_tmps_stack,128,SV*);
476	PL_tmps_floor = -1;	412	PL_tmps_floor = -1;
477	PL_tmps_ix = -1;	413	PL_tmps_ix = -1;
478	PL_tmps_max = 96;	414	PL_tmps_max = 128;
479		415
480	New(54,PL_markstack,16,I32);	416	New(54,PL_markstack,32,I32);
481	PL_markstack_ptr = PL_markstack;	417	PL_markstack_ptr = PL_markstack;
482	PL_markstack_max = PL_markstack + 16;	418	PL_markstack_max = PL_markstack + 32;
483		419
484	#ifdef SET_MARK_OFFSET	420	#ifdef SET_MARK_OFFSET
485	SET_MARK_OFFSET;	421	SET_MARK_OFFSET;
486	#endif	422	#endif
487		423
488	New(54,PL_scopestack,16,I32);	424	New(54,PL_scopestack,32,I32);
489	PL_scopestack_ix = 0;	425	PL_scopestack_ix = 0;
490	PL_scopestack_max = 16;	426	PL_scopestack_max = 32;
491		427
492	New(54,PL_savestack,96,ANY);	428	New(54,PL_savestack,64,ANY);
493	PL_savestack_ix = 0;	429	PL_savestack_ix = 0;
494	PL_savestack_max = 96;	430	PL_savestack_max = 64;
495		431
496	#if !PERL_VERSION_ATLEAST (5,9,0)	432	#if !PERL_VERSION_ATLEAST (5,9,0)
497	New(54,PL_retstack,8,OP*);	433	New(54,PL_retstack,16,OP*);
498	PL_retstack_ix = 0;	434	PL_retstack_ix = 0;
499	PL_retstack_max = 8;	435	PL_retstack_max = 16;
500	#endif	436	#endif
501	}	437	}
502		438
503	/*	439	/*
504	* destroy the stacks, the callchain etc...	440	* destroy the stacks, the callchain etc...
…		…
557	* emulate part of the perl startup here.	493	* emulate part of the perl startup here.
558	*/	494	*/
559		495
560	coro_init_stacks ();	496	coro_init_stacks ();
561		497
562	PL_curcop = 0;	498	PL_curcop = &PL_compiling;
563	PL_in_eval = 0;	499	PL_in_eval = EVAL_NULL;
564	PL_curpm = 0;	500	PL_curpm = 0;
		501	PL_localizing = 0;
		502	PL_dirty = 0;
		503	PL_restartop = 0;
565		504
566	{	505	{
567	dSP;	506	dSP;
568	LOGOP myop;	507	LOGOP myop;
569		508
570	/* I have no idea why this is needed, but it is */
571	PUSHMARK (SP);
572
573	SvREFCNT_dec (GvAV (PL_defgv));	509	SvREFCNT_dec (GvAV (PL_defgv));
574	GvAV (PL_defgv) = coro->args; coro->args = 0;	510	GvAV (PL_defgv) = coro->args; coro->args = 0;
575		511
576	Zero (&myop, 1, LOGOP);	512	Zero (&myop, 1, LOGOP);
577	myop.op_next = Nullop;	513	myop.op_next = Nullop;
578	myop.op_flags = OPf_WANT_VOID;	514	myop.op_flags = OPf_WANT_VOID;
579		515
		516	PUSHMARK (SP);
		517	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
		518	PUTBACK;
580	PL_op = (OP *)&myop;	519	PL_op = (OP *)&myop;
581
582	PUSHMARK (SP);
583	XPUSHs ((SV *)get_cv ("Coro::State::coro_init", FALSE));
584	PUTBACK;
585	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	520	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
586	SPAGAIN;	521	SPAGAIN;
587
588	ENTER; /* necessary e.g. for dounwind */
589	}	522	}
		523
		524	ENTER; /* necessary e.g. for dounwind */
590	}	525	}
591		526
592	static void	527	static void
593	free_coro_mortal ()	528	free_coro_mortal ()
594	{	529	{
…		…
597	SvREFCNT_dec (coro_mortal);	532	SvREFCNT_dec (coro_mortal);
598	coro_mortal = 0;	533	coro_mortal = 0;
599	}	534	}
600	}	535	}
601		536
		537	/* inject a fake call to Coro::State::_cctx_init into the execution */
602	static void NOINLINE	538	static void NOINLINE
603	prepare_cctx (coro_cctx *cctx)	539	prepare_cctx (coro_cctx *cctx)
604	{	540	{
605	dSP;	541	dSP;
606	LOGOP myop;	542	LOGOP myop;
607		543
608	Zero (&myop, 1, LOGOP);	544	Zero (&myop, 1, LOGOP);
609	myop.op_next = PL_op;	545	myop.op_next = PL_op;
610	myop.op_flags = OPf_WANT_VOID;	546	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
611
612	sv_setiv (get_sv ("Coro::State::cctx", FALSE), PTR2IV (cctx));
613		547
614	PUSHMARK (SP);	548	PUSHMARK (SP);
		549	EXTEND (SP, 2);
		550	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));
615	XPUSHs ((SV *)get_cv ("Coro::State::cctx_init", FALSE));	551	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
616	PUTBACK;	552	PUTBACK;
		553	PL_op = (OP *)&myop;
617	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);	554	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
618	SPAGAIN;	555	SPAGAIN;
619	}	556	}
620		557
621	static void	558	static void
622	coro_run (void *arg)	559	coro_run (void *arg)
623	{	560	{
624	/* coro_run is the alternative epilogue of transfer() */	561	/* coro_run is the alternative tail of transfer(), so unlock here. */
625	UNLOCK;	562	UNLOCK;
626		563
627	/*	564	/*
628	* this is a _very_ stripped down perl interpreter ;)	565	* this is a _very_ stripped down perl interpreter ;)
629	*/	566	*/
630	PL_top_env = &PL_start_env;	567	PL_top_env = &PL_start_env;
		568
631	/* inject call to cctx_init */	569	/* inject call to cctx_init */
632	prepare_cctx ((coro_cctx *)arg);	570	prepare_cctx ((coro_cctx *)arg);
633		571
634	/* somebody will hit me for both perl_run and PL_restartop */	572	/* somebody will hit me for both perl_run and PL_restartop */
		573	PL_restartop = PL_op;
635	perl_run (PL_curinterp);	574	perl_run (PL_curinterp);
636		575
637	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	576	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
638	abort ();	577	abort ();
639	}	578	}
…		…
641	static coro_cctx *	580	static coro_cctx *
642	cctx_new ()	581	cctx_new ()
643	{	582	{
644	coro_cctx *cctx;	583	coro_cctx *cctx;
645		584
		585	++cctx_count;
		586
646	New (0, cctx, 1, coro_cctx);	587	New (0, cctx, 1, coro_cctx);
647		588
648	#if HAVE_MMAP	589	#if HAVE_MMAP
649		590
650	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	591	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
651	/* mmap suppsedly does allocate-on-write for us */	592	/* mmap supposedly does allocate-on-write for us */
652	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	593	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
653		594
654	if (cctx->sptr == (void *)-1)	595	if (cctx->sptr == (void *)-1)
655	{	596	{
656	perror ("FATAL: unable to mmap stack for coroutine");	597	perror ("FATAL: unable to mmap stack for coroutine");
…		…
685		626
686	return cctx;	627	return cctx;
687	}	628	}
688		629
689	static void	630	static void
690	cctx_free (coro_cctx *cctx)	631	cctx_destroy (coro_cctx *cctx)
691	{	632	{
692	if (!cctx)	633	if (!cctx)
693	return;	634	return;
		635
		636	--cctx_count;
694		637
695	#if USE_VALGRIND	638	#if USE_VALGRIND
696	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	639	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
697	#endif	640	#endif
698		641
…		…
703	#endif	646	#endif
704		647
705	Safefree (cctx);	648	Safefree (cctx);
706	}	649	}
707		650
708	static coro_cctx *cctx_first;
709	static int cctx_count, cctx_idle;
710
711	static coro_cctx *	651	static coro_cctx *
712	cctx_get ()	652	cctx_get ()
713	{	653	{
714	coro_cctx *cctx;	654	coro_cctx *cctx;
715		655
716	if (cctx_first)	656	if (cctx_first)
717	{	657	{
718	--cctx_idle;
719	cctx = cctx_first;	658	cctx = cctx_first;
720	cctx_first = cctx->next;	659	cctx_first = cctx->next;
		660	--cctx_idle;
721	}	661	}
722	else	662	else
723	{	663	{
724	++cctx_count;
725	cctx = cctx_new ();	664	cctx = cctx_new ();
726	PL_op = PL_op->op_next;	665	PL_op = PL_op->op_next;
727	}	666	}
728		667
729	return cctx;	668	return cctx;
730	}	669	}
731		670
732	static void	671	static void
733	cctx_put (coro_cctx *cctx)	672	cctx_put (coro_cctx *cctx)
734	{	673	{
		674	/* free another cctx if overlimit */
		675	if (cctx_idle >= MAX_IDLE_CCTX)
		676	{
		677	coro_cctx *first = cctx_first;
		678	cctx_first = first->next;
		679	--cctx_idle;
		680
		681	assert (!first->inuse);
		682	cctx_destroy (first);
		683	}
		684
735	++cctx_idle;	685	++cctx_idle;
736	cctx->next = cctx_first;	686	cctx->next = cctx_first;
737	cctx_first = cctx;	687	cctx_first = cctx;
738	}	688	}
739		689
740	/* never call directly, always through the coro_state_transfer global variable */	690	/* never call directly, always through the coro_state_transfer global variable */
741	static void NOINLINE	691	static void NOINLINE
742	transfer (struct coro prev, struct coro next, int flags)	692	transfer (struct coro prev, struct coro next)
743	{	693	{
744	dSTACKLEVEL;	694	dSTACKLEVEL;
745		695
746	/* sometimes transfer is only called to set idle_sp */	696	/* sometimes transfer is only called to set idle_sp */
747	if (flags == TRANSFER_SET_STACKLEVEL)	697	if (!next)
748	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	698	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
749	else if (prev != next)	699	else if (prev != next)
750	{	700	{
751	coro_cctx *prev__cctx;	701	coro_cctx *prev__cctx;
752		702
		703	if (prev->flags & CF_NEW)
		704	{
		705	/* create a new empty context */
		706	Newz (0, prev->cctx, 1, coro_cctx);
		707	prev->cctx->inuse = 1;
		708	prev->flags &= ~CF_NEW;
		709	prev->flags \|= CF_RUNNING;
		710	}
		711
		712	/TODO: must not croak here /
		713	if (!prev->flags & CF_RUNNING)
		714	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
		715
		716	if (next->flags & CF_RUNNING)
		717	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		718
		719	prev->flags &= ~CF_RUNNING;
		720	next->flags \|= CF_RUNNING;
		721
753	LOCK;	722	LOCK;
754		723
755	if (next->mainstack)	724	if (next->flags & CF_NEW)
756	{	725	{
757	/* coroutine already started */	726	/* need to start coroutine */
758	SAVE (prev, flags);	727	next->flags &= ~CF_NEW;
759	LOAD (next);	728	/* first get rid of the old state */
		729	save_perl (prev);
		730	/* setup coroutine call */
		731	setup_coro (next);
		732	/* need a new stack */
		733	assert (!next->stack);
760	}	734	}
761	else	735	else
762	{	736	{
763	/* need to start coroutine */	737	/* coroutine already started */
764	/* first get rid of the old state */	738	save_perl (prev);
765	SAVE (prev, -1);	739	load_perl (next);
766	/* setup coroutine call */
767	setup_coro (next);
768	/* need a stack */
769	next->cctx = 0;
770	}	740	}
771
772	if (!prev->cctx)
773	/* create a new empty context */
774	Newz (0, prev->cctx, 1, coro_cctx);
775		741
776	prev__cctx = prev->cctx;	742	prev__cctx = prev->cctx;
777		743
778	/* possibly "free" the cctx */	744	/* possibly "free" the cctx */
779	if (prev__cctx->idle_sp == STACKLEVEL)	745	if (prev__cctx->idle_sp == STACKLEVEL)
780	{	746	{
		747	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
		748	assert (PL_top_env == prev__cctx->top_env);
		749
		750	prev->cctx = 0;
		751
781	cctx_put (prev__cctx);	752	cctx_put (prev__cctx);
782	prev->cctx = 0;	753	prev__cctx->inuse = 0;
783	}	754	}
784		755
785	if (!next->cctx)	756	if (!next->cctx)
		757	{
786	next->cctx = cctx_get ();	758	next->cctx = cctx_get ();
		759	assert (!next->cctx->inuse);
		760	next->cctx->inuse = 1;
		761	}
787		762
788	if (prev__cctx != next->cctx)	763	if (prev__cctx != next->cctx)
789	{	764	{
790	prev__cctx->top_env = PL_top_env;	765	prev__cctx->top_env = PL_top_env;
791	PL_top_env = next->cctx->top_env;	766	PL_top_env = next->cctx->top_env;
…		…
799	}	774	}
800		775
801	struct transfer_args	776	struct transfer_args
802	{	777	{
803	struct coro prev, next;	778	struct coro prev, next;
804	int flags;
805	};	779	};
806		780
807	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)	781	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
808		782
809	static void	783	static void
810	coro_state_destroy (struct coro *coro)	784	coro_state_destroy (struct coro *coro)
811	{	785	{
812	if (coro->refcnt--)	786	if (coro->refcnt--)
813	return;	787	return;
814		788
815	if (coro->mainstack && coro->mainstack != main_mainstack)	789	if (coro->mainstack && coro->mainstack != main_mainstack)
816	{	790	{
817	struct coro temp;	791	struct coro temp;
		792	Zero (&temp, 1, struct coro);
		793	temp.save = CORO_SAVE_ALL;
818		794
819	SAVE ((&temp), TRANSFER_SAVE_ALL);	795	if (coro->flags & CF_RUNNING)
820	LOAD (coro);	796	croak ("FATAL: tried to destroy currently running coroutine");
		797
		798	save_perl (&temp);
		799	load_perl (coro);
821		800
822	coro_destroy_stacks ();	801	coro_destroy_stacks ();
823		802
824	LOAD ((&temp)); /* this will get rid of defsv etc.. */	803	load_perl (&temp); /* this will get rid of defsv etc.. */
825		804
826	coro->mainstack = 0;	805	coro->mainstack = 0;
827	}	806	}
828		807
829	cctx_free (coro->cctx);	808	cctx_destroy (coro->cctx);
830	SvREFCNT_dec (coro->args);	809	SvREFCNT_dec (coro->args);
831	Safefree (coro);	810	Safefree (coro);
832	}	811	}
833		812
834	static int	813	static int
…		…
884	assert (mg->mg_type == PERL_MAGIC_ext);	863	assert (mg->mg_type == PERL_MAGIC_ext);
885	return (struct coro *)mg->mg_ptr;	864	return (struct coro *)mg->mg_ptr;
886	}	865	}
887		866
888	static void	867	static void
889	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)	868	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)
890	{	869	{
891	ta->prev = SvSTATE (prev);	870	ta->prev = SvSTATE (prev_sv);
892	ta->next = SvSTATE (next);	871	ta->next = SvSTATE (next_sv);
893	ta->flags = flags;
894	}	872	}
895		873
896	static void	874	static void
897	api_transfer (SV prev, SV next, int flags)	875	api_transfer (SV prev_sv, SV next_sv)
898	{	876	{
899	dTHX;
900	struct transfer_args ta;	877	struct transfer_args ta;
901		878
902	prepare_transfer (&ta, prev, next, flags);	879	prepare_transfer (&ta, prev_sv, next_sv);
903	TRANSFER (ta);	880	TRANSFER (ta);
		881	}
		882
		883	static int
		884	api_save (SV *coro_sv, int new_save)
		885	{
		886	struct coro *coro = SvSTATE (coro_sv);
		887	int old_save = coro->save;
		888
		889	if (new_save >= 0)
		890	coro->save = new_save;
		891
		892	return old_save;
904	}	893	}
905		894
906	/ Coro ******************************************************************/	895	/ Coro ******************************************************************/
907		896
908	#define PRIO_MAX 3	897	#define PRIO_MAX 3
…		…
911	#define PRIO_LOW -1	900	#define PRIO_LOW -1
912	#define PRIO_IDLE -3	901	#define PRIO_IDLE -3
913	#define PRIO_MIN -4	902	#define PRIO_MIN -4
914		903
915	/* for Coro.pm */	904	/* for Coro.pm */
916	static GV coro_current, coro_idle;	905	static SV *coro_current;
917	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	906	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
918	static int coro_nready;	907	static int coro_nready;
919		908
920	static void	909	static void
921	coro_enq (SV *sv)	910	coro_enq (SV *coro_sv)
922	{	911	{
923	int prio;
924
925	if (SvTYPE (sv) != SVt_PVHV)
926	croak ("Coro::ready tried to enqueue something that is not a coroutine");
927
928	prio = SvSTATE (sv)->prio;
929
930	av_push (coro_ready [prio - PRIO_MIN], sv);	912	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
931	coro_nready++;	913	coro_nready++;
932	}	914	}
933		915
934	static SV *	916	static SV *
935	coro_deq (int min_prio)	917	coro_deq (int min_prio)
…		…
948	}	930	}
949		931
950	return 0;	932	return 0;
951	}	933	}
952		934
953	static void	935	static int
954	api_ready (SV *coro)	936	api_ready (SV *coro_sv)
955	{	937	{
956	dTHX;	938	struct coro *coro;
957		939
958	if (SvROK (coro))	940	if (SvROK (coro_sv))
959	coro = SvRV (coro);	941	coro_sv = SvRV (coro_sv);
		942
		943	coro = SvSTATE (coro_sv);
		944
		945	if (coro->flags & CF_READY)
		946	return 0;
		947
		948	#if 0 /* this is actually harmless */
		949	if (coro->flags & CF_RUNNING)
		950	croak ("Coro::ready called on currently running coroutine");
		951	#endif
		952
		953	coro->flags \|= CF_READY;
960		954
961	LOCK;	955	LOCK;
962	coro_enq (SvREFCNT_inc (coro));	956	coro_enq (SvREFCNT_inc (coro_sv));
963	UNLOCK;	957	UNLOCK;
		958
		959	return 1;
		960	}
		961
		962	static int
		963	api_is_ready (SV *coro_sv)
		964	{
		965	return !!SvSTATE (coro_sv)->flags & CF_READY;
964	}	966	}
965		967
966	static void	968	static void
967	prepare_schedule (struct transfer_args *ta)	969	prepare_schedule (struct transfer_args *ta)
968	{	970	{
969	SV current, prev, *next;	971	SV prev, next;
970
971	current = GvSV (coro_current);
972		972
973	for (;;)	973	for (;;)
974	{	974	{
975	LOCK;	975	LOCK;
976	next = coro_deq (PRIO_MIN);	976	next = coro_deq (PRIO_MIN);
…		…
985	ENTER;	985	ENTER;
986	SAVETMPS;	986	SAVETMPS;
987		987
988	PUSHMARK (SP);	988	PUSHMARK (SP);
989	PUTBACK;	989	PUTBACK;
990	call_sv (GvSV (coro_idle), G_DISCARD);	990	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
991		991
992	FREETMPS;	992	FREETMPS;
993	LEAVE;	993	LEAVE;
994	}	994	}
995	}	995	}
996		996
997	prev = SvRV (current);	997	prev = SvRV (coro_current);
998	SvRV (current) = next;	998	SvRV_set (coro_current, next);
999		999
1000	/* free this only after the transfer */	1000	/* free this only after the transfer */
1001	LOCK;	1001	LOCK;
1002	free_coro_mortal ();	1002	free_coro_mortal ();
1003	UNLOCK;	1003	UNLOCK;
1004	coro_mortal = prev;	1004	coro_mortal = prev;
1005		1005
		1006	assert (!SvROK(prev));//D
		1007	assert (!SvROK(next));//D
		1008
1006	ta->prev = SvSTATE (prev);	1009	ta->prev = SvSTATE (prev);
1007	ta->next = SvSTATE (next);	1010	ta->next = SvSTATE (next);
1008	ta->flags = TRANSFER_SAVE_ALL;	1011
		1012	assert (ta->next->flags & CF_READY);
		1013	ta->next->flags &= ~CF_READY;
1009	}	1014	}
1010		1015
1011	static void	1016	static void
1012	prepare_cede (struct transfer_args *ta)	1017	prepare_cede (struct transfer_args *ta)
1013	{	1018	{
1014	LOCK;	1019	api_ready (coro_current);
1015	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
1016	UNLOCK;
1017		1020
1018	prepare_schedule (ta);	1021	prepare_schedule (ta);
1019	}	1022	}
1020		1023
1021	static void	1024	static void
1022	api_schedule (void)	1025	api_schedule (void)
1023	{	1026	{
1024	dTHX;
1025	struct transfer_args ta;	1027	struct transfer_args ta;
1026		1028
1027	prepare_schedule (&ta);	1029	prepare_schedule (&ta);
1028	TRANSFER (ta);	1030	TRANSFER (ta);
1029	}	1031	}
1030		1032
1031	static void	1033	static void
1032	api_cede (void)	1034	api_cede (void)
1033	{	1035	{
1034	dTHX;
1035	struct transfer_args ta;	1036	struct transfer_args ta;
1036		1037
1037	prepare_cede (&ta);	1038	prepare_cede (&ta);
1038	TRANSFER (ta);	1039	TRANSFER (ta);
1039	}	1040	}
…		…
1049	#endif	1050	#endif
1050	BOOT_PAGESIZE;	1051	BOOT_PAGESIZE;
1051		1052
1052	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1053	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1053		1054
1054	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1055	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1055	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1056	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1056	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1057	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
		1058	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1059	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1057		1060
1058	main_mainstack = PL_mainstack;	1061	main_mainstack = PL_mainstack;
1059		1062
1060	coroapi.ver = CORO_API_VERSION;	1063	coroapi.ver = CORO_API_VERSION;
1061	coroapi.transfer = api_transfer;	1064	coroapi.transfer = api_transfer;
…		…
1071	HV *hv;	1074	HV *hv;
1072	int i;	1075	int i;
1073		1076
1074	Newz (0, coro, 1, struct coro);	1077	Newz (0, coro, 1, struct coro);
1075	coro->args = newAV ();	1078	coro->args = newAV ();
		1079	coro->save = CORO_SAVE_ALL;
		1080	coro->flags = CF_NEW;
1076		1081
1077	hv = newHV ();	1082	hv = newHV ();
1078	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1083	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1079	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1084	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1080		1085
1081	for (i = 1; i < items; i++)	1086	for (i = 1; i < items; i++)
1082	av_push (coro->args, newSVsv (ST (i)));	1087	av_push (coro->args, newSVsv (ST (i)));
1083	}	1088	}
1084	OUTPUT:	1089	OUTPUT:
		1090	RETVAL
		1091
		1092	int
		1093	save (SV *coro, int new_save = -1)
		1094	CODE:
		1095	RETVAL = api_save (coro, new_save);
		1096	OUTPUT:
1085	RETVAL	1097	RETVAL
1086		1098
1087	void	1099	void
1088	_set_stacklevel (...)	1100	_set_stacklevel (...)
1089	ALIAS:	1101	ALIAS:
1090	Coro::State::transfer = 1	1102	Coro::State::transfer = 1
1091	Coro::schedule = 2	1103	Coro::schedule = 2
1092	Coro::cede = 3	1104	Coro::cede = 3
1093	Coro::Cont::yield = 4
1094	CODE:	1105	CODE:
1095	{	1106	{
1096	struct transfer_args ta;	1107	struct transfer_args ta;
1097		1108
1098	switch (ix)	1109	switch (ix)
1099	{	1110	{
1100	case 0:	1111	case 0:
1101	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1112	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1102	ta.next = 0;	1113	ta.next = 0;
1103	ta.flags = TRANSFER_SET_STACKLEVEL;
1104	break;	1114	break;
1105		1115
1106	case 1:	1116	case 1:
1107	if (items != 3)	1117	if (items != 2)
1108	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);	1118	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1109		1119
1110	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));	1120	prepare_transfer (&ta, ST (0), ST (1));
1111	break;	1121	break;
1112		1122
1113	case 2:	1123	case 2:
1114	prepare_schedule (&ta);	1124	prepare_schedule (&ta);
1115	break;	1125	break;
1116		1126
1117	case 3:	1127	case 3:
1118	prepare_cede (&ta);	1128	prepare_cede (&ta);
1119	break;	1129	break;
1120
1121	case 4:
1122	{
1123	SV *yieldstack;
1124	SV *sv;
1125	AV *defav = GvAV (PL_defgv);
1126
1127	yieldstack = *hv_fetch (
1128	(HV *)SvRV (GvSV (coro_current)),
1129	"yieldstack", sizeof ("yieldstack") - 1,
1130	0
1131	);
1132
1133	/* set up @_ -- ugly */
1134	av_clear (defav);
1135	av_fill (defav, items - 1);
1136	while (items--)
1137	av_store (defav, items, SvREFCNT_inc (ST(items)));
1138
1139	sv = av_pop ((AV *)SvRV (yieldstack));
1140	ta.prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
1141	ta.next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
1142	ta.flags = 0;
1143	SvREFCNT_dec (sv);
1144	}
1145	break;
1146
1147	}	1130	}
1148		1131
1149	TRANSFER (ta);	1132	TRANSFER (ta);
1150	}	1133	}
1151		1134
…		…
1195	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1178	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1196	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1179	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1197	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1180	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1198	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1181	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1199		1182
1200	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1183	coro_current = get_sv ("Coro::current", FALSE);
1201	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1184	SvREADONLY_on (coro_current);
1202		1185
1203	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1186	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1204	coro_ready[i] = newAV ();	1187	coro_ready[i] = newAV ();
1205		1188
1206	{	1189	{
1207	SV *sv = perl_get_sv("Coro::API", 1);	1190	SV *sv = perl_get_sv("Coro::API", 1);
1208		1191
1209	coroapi.schedule = api_schedule;	1192	coroapi.schedule = api_schedule;
		1193	coroapi.save = api_save;
1210	coroapi.cede = api_cede;	1194	coroapi.cede = api_cede;
1211	coroapi.ready = api_ready;	1195	coroapi.ready = api_ready;
		1196	coroapi.is_ready = api_is_ready;
1212	coroapi.nready = &coro_nready;	1197	coroapi.nready = &coro_nready;
1213	coroapi.current = coro_current;	1198	coroapi.current = coro_current;
1214		1199
1215	GCoroAPI = &coroapi;	1200	GCoroAPI = &coroapi;
1216	sv_setiv (sv, (IV)&coroapi);	1201	sv_setiv (sv, (IV)&coroapi);
1217	SvREADONLY_on (sv);	1202	SvREADONLY_on (sv);
1218	}	1203	}
1219	}	1204	}
		1205
		1206	void
		1207	_set_current (SV *current)
		1208	PROTOTYPE: $
		1209	CODE:
		1210	SvREFCNT_dec (SvRV (coro_current));
		1211	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1220		1212
1221	int	1213	int
1222	prio (Coro::State coro, int newprio = 0)	1214	prio (Coro::State coro, int newprio = 0)
1223	ALIAS:	1215	ALIAS:
1224	nice = 1	1216	nice = 1
…		…
1236		1228
1237	coro->prio = newprio;	1229	coro->prio = newprio;
1238	}	1230	}
1239	}	1231	}
1240		1232
1241	void	1233	SV *
1242	ready (SV *self)	1234	ready (SV *self)
1243	PROTOTYPE: $	1235	PROTOTYPE: $
1244	CODE:	1236	CODE:
1245	api_ready (self);	1237	RETVAL = boolSV (api_ready (self));
		1238	OUTPUT:
		1239	RETVAL
		1240
		1241	SV *
		1242	is_ready (SV *self)
		1243	PROTOTYPE: $
		1244	CODE:
		1245	RETVAL = boolSV (api_is_ready (self));
		1246	OUTPUT:
		1247	RETVAL
1246		1248
1247	int	1249	int
1248	nready (...)	1250	nready (...)
1249	PROTOTYPE:	1251	PROTOTYPE:
1250	CODE:	1252	CODE:
…		…
1256		1258
1257	SV *	1259	SV *
1258	_get_state ()	1260	_get_state ()
1259	CODE:	1261	CODE:
1260	{	1262	{
1261	struct {	1263	struct io_state *data;
1262	int errorno;
1263	int laststype;
1264	int laststatval;
1265	Stat_t statcache;
1266	} data;
1267		1264
		1265	RETVAL = newSV (sizeof (struct io_state));
		1266	data = (struct io_state *)SvPVX (RETVAL);
		1267	SvCUR_set (RETVAL, sizeof (struct io_state));
		1268	SvPOK_only (RETVAL);
		1269
1268	data.errorno = errno;	1270	data->errorno = errno;
1269	data.laststype = PL_laststype;	1271	data->laststype = PL_laststype;
1270	data.laststatval = PL_laststatval;	1272	data->laststatval = PL_laststatval;
1271	data.statcache = PL_statcache;	1273	data->statcache = PL_statcache;
1272
1273	RETVAL = newSVpvn ((char *)&data, sizeof data);
1274	}	1274	}
1275	OUTPUT:	1275	OUTPUT:
1276	RETVAL	1276	RETVAL
1277		1277
1278	void	1278	void
1279	_set_state (char *data_)	1279	_set_state (char *data_)
1280	PROTOTYPE: $	1280	PROTOTYPE: $
1281	CODE:	1281	CODE:
1282	{	1282	{
1283	struct {	1283	struct io_state data = (void )data_;
1284	int errorno;
1285	int laststype;
1286	int laststatval;
1287	Stat_t statcache;
1288	} data = (void )data_;
1289		1284
1290	errno = data->errorno;	1285	errno = data->errorno;
1291	PL_laststype = data->laststype;	1286	PL_laststype = data->laststype;
1292	PL_laststatval = data->laststatval;	1287	PL_laststatval = data->laststatval;
1293	PL_statcache = data->statcache;	1288	PL_statcache = data->statcache;
1294	}	1289	}
		1290

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Comparing Coro/Coro/State.xs (file contents): Revision 1.106 by root, Mon Nov 27 02:08:55 2006 UTC vs. Revision 1.122 by root, Mon Dec 4 13:47:56 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.106 by root, Mon Nov 27 02:08:55 2006 UTC vs.
Revision 1.122 by root, Mon Dec 4 13:47:56 2006 UTC