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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.105 by root, Mon Nov 27 02:01:33 2006 UTC vs.
Revision 1.121 by root, Sat Dec 2 20:40:25 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) \
…		…
62	# ifndef PAGESIZE	65	# ifndef PAGESIZE
63	# define PAGESIZE pagesize	66	# define PAGESIZE pagesize
64	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)	67	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
65	static long pagesize;	68	static long pagesize;
66	# else	69	# else
67	# define BOOT_PAGESIZE	70	# define BOOT_PAGESIZE (void)0
68	# endif	71	# endif
		72	#else
		73	# define PAGESIZE 0
		74	# define BOOT_PAGESIZE (void)0
69	#endif	75	#endif
70		76
71	/* The next macro should declare a variable stacklevel that contains and approximation	77	/* The next macro should declare a variable stacklevel that contains and approximation
72	* to the current C stack pointer. Its property is that it changes with each call	78	* to the current C stack pointer. Its property is that it changes with each call
73	* and should be unique. */	79	* and should be unique. */
…		…
95	#else	101	#else
96	# define LOCK (void)0	102	# define LOCK (void)0
97	# define UNLOCK (void)0	103	# define UNLOCK (void)0
98	#endif	104	#endif
99		105
		106	struct io_state
		107	{
		108	int errorno;
		109	I32 laststype;
		110	int laststatval;
		111	Stat_t statcache;
		112	};
		113
100	static struct CoroAPI coroapi;	114	static struct CoroAPI coroapi;
101	static AV main_mainstack; / used to differentiate between $main and others */	115	static AV main_mainstack; / used to differentiate between $main and others */
102	static HV coro_state_stash, coro_stash;	116	static HV coro_state_stash, coro_stash;
103	static SV coro_mortal; / will be freed after next transfer */	117	static SV coro_mortal; / will be freed after next transfer */
104		118
		119	static struct coro_cctx *cctx_first;
		120	static int cctx_count, cctx_idle;
		121
105	/* this is a structure representing a c-level coroutine */	122	/* this is a structure representing a c-level coroutine */
106	typedef struct coro_stack {	123	typedef struct coro_cctx {
107	struct coro_stack *next;	124	struct coro_cctx *next;
108		125
109	/* the stack */	126	/* the stack */
110	void *sptr;	127	void *sptr;
111	long ssize; /* positive == mmap, otherwise malloc */	128	long ssize; /* positive == mmap, otherwise malloc */
112		129
113	/* cpu state */	130	/* cpu state */
114	void idle_sp; / sp of top-level transfer/schedule/cede call */	131	void idle_sp; / sp of top-level transfer/schedule/cede call */
115	JMPENV *top_env;	132	JMPENV *top_env;
116	coro_context cctx;	133	coro_context cctx;
117		134
		135	int inuse;
		136
118	#if USE_VALGRIND	137	#if USE_VALGRIND
119	int valgrind_id;	138	int valgrind_id;
120	#endif	139	#endif
121	} coro_stack;	140	} coro_cctx;
		141
		142	enum {
		143	CF_RUNNING = 0x0001, /* coroutine is running */
		144	CF_READY = 0x0002, /* coroutine is ready */
		145	CF_NEW = 0x0004, /* ahs never been switched to */
		146	};
122		147
123	/* this is a structure representing a perl-level coroutine */	148	/* this is a structure representing a perl-level coroutine */
124	struct coro {	149	struct coro {
125	/* the c coroutine allocated to this perl coroutine, if any */	150	/* the c coroutine allocated to this perl coroutine, if any */
126	coro_stack *stack;	151	coro_cctx *cctx;
127		152
128	/* data associated with this coroutine (initial args) */	153	/* data associated with this coroutine (initial args) */
129	AV *args;	154	AV *args;
130	int refcnt;	155	int refcnt;
		156	int flags;
131		157
132	/* optionally saved, might be zero */	158	/* optionally saved, might be zero */
133	AV *defav;	159	AV *defav;
134	SV *defsv;	160	SV *defsv;
135	SV *errsv;	161	SV *errsv;
136		162
137	/* saved global state not related to stacks */	163	#define VAR(name,type) type name;
138	U8 dowarn;	164	# include "state.h"
139	I32 in_eval;	165	#undef VAR
140
141	/* the stacks and related info (callchain etc..) */
142	PERL_SI *curstackinfo;
143	AV *curstack;
144	AV *mainstack;
145	SV **stack_sp;
146	OP *op;
147	SV **curpad;
148	AV *comppad;
149	CV *compcv;
150	SV **stack_base;
151	SV **stack_max;
152	SV **tmps_stack;
153	I32 tmps_floor;
154	I32 tmps_ix;
155	I32 tmps_max;
156	I32 *markstack;
157	I32 *markstack_ptr;
158	I32 *markstack_max;
159	I32 *scopestack;
160	I32 scopestack_ix;
161	I32 scopestack_max;
162	ANY *savestack;
163	I32 savestack_ix;
164	I32 savestack_max;
165	OP **retstack;
166	I32 retstack_ix;
167	I32 retstack_max;
168	PMOP *curpm;
169	COP *curcop;
170		166
171	/* coro process data */	167	/* coro process data */
172	int prio;	168	int prio;
173	};	169	};
174		170
…		…
238		234
239	#define PERL_MAGIC_coro PERL_MAGIC_ext	235	#define PERL_MAGIC_coro PERL_MAGIC_ext
240		236
241	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	237	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
242		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
243	/* the next two functions merely cache the padlists */	246	/* the next two functions merely cache the padlists */
244	static void	247	static void
245	get_padlist (CV *cv)	248	get_padlist (CV *cv)
246	{	249	{
247	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	250	MAGIC *mg = CORO_MAGIC (cv);
		251	AV *av;
248		252
249	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	253	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
250	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	254	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
251	else	255	else
252	{	256	{
253	#if 0	257	#if 0
254	/* this is probably cleaner, but also slower? */	258	/* this is probably cleaner, but also slower? */
255	CV *cp = Perl_cv_clone (cv);	259	CV *cp = Perl_cv_clone (cv);
…		…
263	}	267	}
264		268
265	static void	269	static void
266	put_padlist (CV *cv)	270	put_padlist (CV *cv)
267	{	271	{
268	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	272	MAGIC *mg = CORO_MAGIC (cv);
		273	AV *av;
269		274
270	if (!mg)	275	if (!mg)
271	{	276	{
272	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	277	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
273	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	278	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
274	mg->mg_virtual = &vtbl_coro;	279	mg->mg_virtual = &vtbl_coro;
275	mg->mg_obj = (SV *)newAV ();	280	mg->mg_obj = (SV *)newAV ();
276	}	281	}
277		282
278	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);
279	}	289	}
280		290
281	#define SB do {	291	#define SB do {
282	#define SE } while (0)	292	#define SE } while (0)
283		293
284	#define LOAD(state) load_state((state));	294	#define LOAD(state) load_state ((state))
285	#define SAVE(state,flags) save_state((state),(flags));	295	#define SAVE(state,flags) save_state ((state),(flags))
286		296
287	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	297	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
288		298
289	static void	299	static void
290	load_state(Coro__State c)	300	load_state (Coro__State c)
291	{	301	{
292	PL_dowarn = c->dowarn;	302	#define VAR(name,type) PL_ ## name = c->name;
293	PL_in_eval = c->in_eval;	303	# include "state.h"
294		304	#undef VAR
295	PL_curstackinfo = c->curstackinfo;
296	PL_curstack = c->curstack;
297	PL_mainstack = c->mainstack;
298	PL_stack_sp = c->stack_sp;
299	PL_op = c->op;
300	PL_curpad = c->curpad;
301	PL_comppad = c->comppad;
302	PL_compcv = c->compcv;
303	PL_stack_base = c->stack_base;
304	PL_stack_max = c->stack_max;
305	PL_tmps_stack = c->tmps_stack;
306	PL_tmps_floor = c->tmps_floor;
307	PL_tmps_ix = c->tmps_ix;
308	PL_tmps_max = c->tmps_max;
309	PL_markstack = c->markstack;
310	PL_markstack_ptr = c->markstack_ptr;
311	PL_markstack_max = c->markstack_max;
312	PL_scopestack = c->scopestack;
313	PL_scopestack_ix = c->scopestack_ix;
314	PL_scopestack_max = c->scopestack_max;
315	PL_savestack = c->savestack;
316	PL_savestack_ix = c->savestack_ix;
317	PL_savestack_max = c->savestack_max;
318	#if !PERL_VERSION_ATLEAST (5,9,0)
319	PL_retstack = c->retstack;
320	PL_retstack_ix = c->retstack_ix;
321	PL_retstack_max = c->retstack_max;
322	#endif
323	PL_curpm = c->curpm;
324	PL_curcop = c->curcop;
325		305
326	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	306	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
327	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	307	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
328	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	308	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
329		309
…		…
332	CV *cv;	312	CV *cv;
333		313
334	/* now do the ugly restore mess */	314	/* now do the ugly restore mess */
335	while ((cv = (CV *)POPs))	315	while ((cv = (CV *)POPs))
336	{	316	{
337	AV padlist = (AV )POPs;
338
339	if (padlist)
340	{
341	put_padlist (cv); /* mark this padlist as available */	317	put_padlist (cv); /* mark this padlist as available */
342	CvPADLIST(cv) = padlist;	318	CvDEPTH (cv) = PTR2IV (POPs);
343	}	319	CvPADLIST (cv) = (AV *)POPs;
344
345	++CvDEPTH(cv);
346	}	320	}
347		321
348	PUTBACK;	322	PUTBACK;
349	}	323	}
350	}	324	}
351		325
352	static void	326	static void
353	save_state(Coro__State c, int flags)	327	save_state (Coro__State c, int flags)
354	{	328	{
355	{	329	{
356	dSP;	330	dSP;
357	I32 cxix = cxstack_ix;	331	I32 cxix = cxstack_ix;
358	PERL_CONTEXT *ccstk = cxstack;	332	PERL_CONTEXT *ccstk = cxstack;
…		…
369	{	343	{
370	while (cxix >= 0)	344	while (cxix >= 0)
371	{	345	{
372	PERL_CONTEXT *cx = &ccstk[cxix--];	346	PERL_CONTEXT *cx = &ccstk[cxix--];
373		347
374	if (CxTYPE(cx) == CXt_SUB)	348	if (CxTYPE (cx) == CXt_SUB)
375	{	349	{
376	CV *cv = cx->blk_sub.cv;	350	CV *cv = cx->blk_sub.cv;
		351
377	if (CvDEPTH(cv))	352	if (CvDEPTH (cv))
378	{	353	{
379	EXTEND (SP, CvDEPTH(cv)*2);	354	EXTEND (SP, 3);
380		355
381	while (--CvDEPTH(cv))
382	{
383	/* this tells the restore code to increment CvDEPTH */
384	PUSHs (Nullsv);
385	PUSHs ((SV *)cv);
386	}
387
388	PUSHs ((SV *)CvPADLIST(cv));	356	PUSHs ((SV *)CvPADLIST (cv));
		357	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
389	PUSHs ((SV *)cv);	358	PUSHs ((SV *)cv);
390		359
		360	CvDEPTH (cv) = 0;
391	get_padlist (cv);	361	get_padlist (cv);
392	}	362	}
393	}	363	}
394	#ifdef CXt_FORMAT	364	#ifdef CXt_FORMAT
395	else if (CxTYPE(cx) == CXt_FORMAT)	365	else if (CxTYPE (cx) == CXt_FORMAT)
396	{	366	{
397	/* I never used formats, so how should I know how these are implemented? */	367	/* I never used formats, so how should I know how these are implemented? */
398	/* my bold guess is as a simple, plain sub... */	368	/* my bold guess is as a simple, plain sub... */
399	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	369	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
400	}	370	}
…		…
414		384
415	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	385	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
416	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	386	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
417	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	387	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
418		388
419	c->dowarn = PL_dowarn;	389	#define VAR(name,type)c->name = PL_ ## name;
420	c->in_eval = PL_in_eval;	390	# include "state.h"
421		391	#undef VAR
422	c->curstackinfo = PL_curstackinfo;
423	c->curstack = PL_curstack;
424	c->mainstack = PL_mainstack;
425	c->stack_sp = PL_stack_sp;
426	c->op = PL_op;
427	c->curpad = PL_curpad;
428	c->comppad = PL_comppad;
429	c->compcv = PL_compcv;
430	c->stack_base = PL_stack_base;
431	c->stack_max = PL_stack_max;
432	c->tmps_stack = PL_tmps_stack;
433	c->tmps_floor = PL_tmps_floor;
434	c->tmps_ix = PL_tmps_ix;
435	c->tmps_max = PL_tmps_max;
436	c->markstack = PL_markstack;
437	c->markstack_ptr = PL_markstack_ptr;
438	c->markstack_max = PL_markstack_max;
439	c->scopestack = PL_scopestack;
440	c->scopestack_ix = PL_scopestack_ix;
441	c->scopestack_max = PL_scopestack_max;
442	c->savestack = PL_savestack;
443	c->savestack_ix = PL_savestack_ix;
444	c->savestack_max = PL_savestack_max;
445	#if !PERL_VERSION_ATLEAST (5,9,0)
446	c->retstack = PL_retstack;
447	c->retstack_ix = PL_retstack_ix;
448	c->retstack_max = PL_retstack_max;
449	#endif
450	c->curpm = PL_curpm;
451	c->curcop = PL_curcop;
452	}	392	}
453		393
454	/*	394	/*
455	* allocate various perl stacks. This is an exact copy	395	* allocate various perl stacks. This is an exact copy
456	* of perl.c:init_stacks, except that it uses less memory	396	* of perl.c:init_stacks, except that it uses less memory
…		…
458	* not usually need a lot of stackspace.	398	* not usually need a lot of stackspace.
459	*/	399	*/
460	static void	400	static void
461	coro_init_stacks ()	401	coro_init_stacks ()
462	{	402	{
463	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	403	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
464	PL_curstackinfo->si_type = PERLSI_MAIN;	404	PL_curstackinfo->si_type = PERLSI_MAIN;
465	PL_curstack = PL_curstackinfo->si_stack;	405	PL_curstack = PL_curstackinfo->si_stack;
466	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	406	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
467		407
468	PL_stack_base = AvARRAY(PL_curstack);	408	PL_stack_base = AvARRAY(PL_curstack);
469	PL_stack_sp = PL_stack_base;	409	PL_stack_sp = PL_stack_base;
470	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	410	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
471		411
472	New(50,PL_tmps_stack,96,SV*);	412	New(50,PL_tmps_stack,128,SV*);
473	PL_tmps_floor = -1;	413	PL_tmps_floor = -1;
474	PL_tmps_ix = -1;	414	PL_tmps_ix = -1;
475	PL_tmps_max = 96;	415	PL_tmps_max = 128;
476		416
477	New(54,PL_markstack,16,I32);	417	New(54,PL_markstack,32,I32);
478	PL_markstack_ptr = PL_markstack;	418	PL_markstack_ptr = PL_markstack;
479	PL_markstack_max = PL_markstack + 16;	419	PL_markstack_max = PL_markstack + 32;
480		420
481	#ifdef SET_MARK_OFFSET	421	#ifdef SET_MARK_OFFSET
482	SET_MARK_OFFSET;	422	SET_MARK_OFFSET;
483	#endif	423	#endif
484		424
485	New(54,PL_scopestack,16,I32);	425	New(54,PL_scopestack,32,I32);
486	PL_scopestack_ix = 0;	426	PL_scopestack_ix = 0;
487	PL_scopestack_max = 16;	427	PL_scopestack_max = 32;
488		428
489	New(54,PL_savestack,96,ANY);	429	New(54,PL_savestack,64,ANY);
490	PL_savestack_ix = 0;	430	PL_savestack_ix = 0;
491	PL_savestack_max = 96;	431	PL_savestack_max = 64;
492		432
493	#if !PERL_VERSION_ATLEAST (5,9,0)	433	#if !PERL_VERSION_ATLEAST (5,9,0)
494	New(54,PL_retstack,8,OP*);	434	New(54,PL_retstack,16,OP*);
495	PL_retstack_ix = 0;	435	PL_retstack_ix = 0;
496	PL_retstack_max = 8;	436	PL_retstack_max = 16;
497	#endif	437	#endif
498	}	438	}
499		439
500	/*	440	/*
501	* destroy the stacks, the callchain etc...	441	* destroy the stacks, the callchain etc...
502	*/	442	*/
503	static void	443	static void
504	coro_destroy_stacks()	444	coro_destroy_stacks ()
505	{	445	{
506	if (!IN_DESTRUCT)	446	if (!IN_DESTRUCT)
507	{	447	{
508	/* is this ugly, I ask? */	448	/* is this ugly, I ask? */
509	LEAVE_SCOPE (0);	449	LEAVE_SCOPE (0);
…		…
554	* emulate part of the perl startup here.	494	* emulate part of the perl startup here.
555	*/	495	*/
556		496
557	coro_init_stacks ();	497	coro_init_stacks ();
558		498
559	PL_curcop = 0;	499	PL_curcop = &PL_compiling;
560	PL_in_eval = 0;	500	PL_in_eval = EVAL_NULL;
561	PL_curpm = 0;	501	PL_curpm = 0;
		502	PL_localizing = 0;
		503	PL_dirty = 0;
		504	PL_restartop = 0;
562		505
563	{	506	{
564	dSP;	507	dSP;
565	LOGOP myop;	508	LOGOP myop;
566		509
567	/* I have no idea why this is needed, but it is */
568	PUSHMARK (SP);
569
570	SvREFCNT_dec (GvAV (PL_defgv));	510	SvREFCNT_dec (GvAV (PL_defgv));
571	GvAV (PL_defgv) = coro->args; coro->args = 0;	511	GvAV (PL_defgv) = coro->args; coro->args = 0;
572		512
573	Zero (&myop, 1, LOGOP);	513	Zero (&myop, 1, LOGOP);
574	myop.op_next = Nullop;	514	myop.op_next = Nullop;
575	myop.op_flags = OPf_WANT_VOID;	515	myop.op_flags = OPf_WANT_VOID;
576		516
		517	PUSHMARK (SP);
		518	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
		519	PUTBACK;
577	PL_op = (OP *)&myop;	520	PL_op = (OP *)&myop;
578
579	PUSHMARK (SP);
580	XPUSHs ((SV *)get_cv ("Coro::State::coro_init", FALSE));
581	PUTBACK;
582	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	521	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
583	SPAGAIN;	522	SPAGAIN;
584
585	ENTER; /* necessary e.g. for dounwind */
586	}	523	}
		524
		525	ENTER; /* necessary e.g. for dounwind */
587	}	526	}
588		527
589	static void	528	static void
590	free_coro_mortal ()	529	free_coro_mortal ()
591	{	530	{
…		…
594	SvREFCNT_dec (coro_mortal);	533	SvREFCNT_dec (coro_mortal);
595	coro_mortal = 0;	534	coro_mortal = 0;
596	}	535	}
597	}	536	}
598		537
		538	/* inject a fake call to Coro::State::_cctx_init into the execution */
599	static void NOINLINE	539	static void NOINLINE
600	prepare_cctx (coro_stack *cctx)	540	prepare_cctx (coro_cctx *cctx)
601	{	541	{
602	dSP;	542	dSP;
603	LOGOP myop;	543	LOGOP myop;
604		544
605	Zero (&myop, 1, LOGOP);	545	Zero (&myop, 1, LOGOP);
606	myop.op_next = PL_op;	546	myop.op_next = PL_op;
607	myop.op_flags = OPf_WANT_VOID;	547	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
608
609	sv_setiv (get_sv ("Coro::State::cctx_stack", FALSE), PTR2IV (cctx));
610		548
611	PUSHMARK (SP);	549	PUSHMARK (SP);
		550	EXTEND (SP, 2);
		551	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));
612	XPUSHs ((SV *)get_cv ("Coro::State::cctx_init", FALSE));	552	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
613	PUTBACK;	553	PUTBACK;
		554	PL_op = (OP *)&myop;
614	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);	555	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
615	SPAGAIN;	556	SPAGAIN;
616	}	557	}
617		558
618	static void	559	static void
619	coro_run (void *arg)	560	coro_run (void *arg)
620	{	561	{
621	/* coro_run is the alternative epilogue of transfer() */	562	/* coro_run is the alternative tail of transfer(), so unlock here. */
622	UNLOCK;	563	UNLOCK;
623		564
624	/*	565	/*
625	* this is a _very_ stripped down perl interpreter ;)	566	* this is a _very_ stripped down perl interpreter ;)
626	*/	567	*/
627	PL_top_env = &PL_start_env;	568	PL_top_env = &PL_start_env;
		569
628	/* inject call to cctx_init */	570	/* inject call to cctx_init */
629	prepare_cctx ((coro_stack *)arg);	571	prepare_cctx ((coro_cctx *)arg);
630		572
631	/* somebody will hit me for both perl_run and PL_restartop */	573	/* somebody will hit me for both perl_run and PL_restartop */
		574	PL_restartop = PL_op;
632	perl_run (PL_curinterp);	575	perl_run (PL_curinterp);
633		576
634	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	577	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
635	abort ();	578	abort ();
636	}	579	}
637		580
638	static coro_stack *	581	static coro_cctx *
639	stack_new ()	582	cctx_new ()
640	{	583	{
641	coro_stack *stack;	584	coro_cctx *cctx;
642		585
		586	++cctx_count;
		587
643	New (0, stack, 1, coro_stack);	588	New (0, cctx, 1, coro_cctx);
644		589
645	#if HAVE_MMAP	590	#if HAVE_MMAP
646		591
647	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	592	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
648	/* mmap suppsedly does allocate-on-write for us */	593	/* mmap supposedly does allocate-on-write for us */
649	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	594	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
650		595
651	if (stack->sptr == (void *)-1)	596	if (cctx->sptr == (void *)-1)
652	{	597	{
653	perror ("FATAL: unable to mmap stack for coroutine");	598	perror ("FATAL: unable to mmap stack for coroutine");
654	_exit (EXIT_FAILURE);	599	_exit (EXIT_FAILURE);
655	}	600	}
656		601
657	# if STACKGUARD	602	# if STACKGUARD
658	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	603	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
659	# endif	604	# endif
660		605
661	#else	606	#else
662		607
663	stack->ssize = STACKSIZE * (long)sizeof (long);	608	cctx->ssize = STACKSIZE * (long)sizeof (long);
664	New (0, stack->sptr, STACKSIZE, long);	609	New (0, cctx->sptr, STACKSIZE, long);
665		610
666	if (!stack->sptr)	611	if (!cctx->sptr)
667	{	612	{
668	perror (stderr, "FATAL: unable to malloc stack for coroutine");	613	perror ("FATAL: unable to malloc stack for coroutine");
669	_exit (EXIT_FAILURE);	614	_exit (EXIT_FAILURE);
670	}	615	}
671		616
672	#endif	617	#endif
673		618
674	#if USE_VALGRIND	619	#if USE_VALGRIND
675	stack->valgrind_id = VALGRIND_STACK_REGISTER (	620	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
676	STACKGUARD * PAGESIZE + (char *)stack->sptr,	621	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
677	stack->ssize + (char *)stack->sptr	622	cctx->ssize + (char *)cctx->sptr
678	);	623	);
679	#endif	624	#endif
680		625
681	coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize);	626	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
682		627
683	return stack;	628	return cctx;
684	}	629	}
685		630
686	static void	631	static void
687	stack_free (coro_stack *stack)	632	cctx_destroy (coro_cctx *cctx)
688	{	633	{
689	if (!stack)	634	if (!cctx)
690	return;	635	return;
691		636
		637	--cctx_count;
		638
692	#if USE_VALGRIND	639	#if USE_VALGRIND
693	VALGRIND_STACK_DEREGISTER (stack->valgrind_id);	640	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
694	#endif	641	#endif
695		642
696	#if HAVE_MMAP	643	#if HAVE_MMAP
697	munmap (stack->sptr, stack->ssize);	644	munmap (cctx->sptr, cctx->ssize);
698	#else	645	#else
699	Safefree (stack->sptr);	646	Safefree (cctx->sptr);
700	#endif	647	#endif
701		648
702	Safefree (stack);	649	Safefree (cctx);
703	}	650	}
704		651
705	static coro_stack *stack_first;
706	static int cctx_count, cctx_idle;
707
708	static coro_stack *	652	static coro_cctx *
709	stack_get ()	653	cctx_get ()
710	{	654	{
711	coro_stack *stack;	655	coro_cctx *cctx;
712		656
713	if (stack_first)	657	if (cctx_first)
714	{	658	{
		659	cctx = cctx_first;
		660	cctx_first = cctx->next;
715	--cctx_idle;	661	--cctx_idle;
716	stack = stack_first;
717	stack_first = stack->next;
718	}	662	}
719	else	663	else
720	{	664	{
721	++cctx_count;	665	cctx = cctx_new ();
722	stack = stack_new ();
723	PL_op = PL_op->op_next;	666	PL_op = PL_op->op_next;
724	}	667	}
725		668
726	return stack;	669	return cctx;
727	}	670	}
728		671
729	static void	672	static void
730	stack_put (coro_stack *stack)	673	cctx_put (coro_cctx *cctx)
731	{	674	{
		675	/* free another cctx if overlimit */
		676	if (cctx_idle >= MAX_IDLE_CCTX)
		677	{
		678	coro_cctx *first = cctx_first;
		679	cctx_first = first->next;
		680	--cctx_idle;
		681
		682	assert (!first->inuse);
		683	cctx_destroy (first);
		684	}
		685
732	++cctx_idle;	686	++cctx_idle;
733	stack->next = stack_first;	687	cctx->next = cctx_first;
734	stack_first = stack;	688	cctx_first = cctx;
735	}	689	}
736		690
737	/* never call directly, always through the coro_state_transfer global variable */	691	/* never call directly, always through the coro_state_transfer global variable */
738	static void NOINLINE	692	static void NOINLINE
739	transfer (struct coro prev, struct coro next, int flags)	693	transfer (struct coro prev, struct coro next, int flags)
740	{	694	{
741	dSTACKLEVEL;	695	dSTACKLEVEL;
742		696
743	/* sometimes transfer is only called to set idle_sp */	697	/* sometimes transfer is only called to set idle_sp */
744	if (flags == TRANSFER_SET_STACKLEVEL)	698	if (flags == TRANSFER_SET_STACKLEVEL)
745	((coro_stack *)prev)->idle_sp = STACKLEVEL;	699	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
746	else if (prev != next)	700	else if (prev != next)
747	{	701	{
748	coro_stack *prev__stack;	702	coro_cctx *prev__cctx;
		703
		704	if (prev->flags & CF_NEW)
		705	{
		706	/* create a new empty context */
		707	Newz (0, prev->cctx, 1, coro_cctx);
		708	prev->cctx->inuse = 1;
		709	prev->flags &= ~CF_NEW;
		710	prev->flags \|= CF_RUNNING;
		711	}
		712
		713	/TODO: must not croak here /
		714	if (!prev->flags & CF_RUNNING)
		715	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
		716
		717	if (next->flags & CF_RUNNING)
		718	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		719
		720	prev->flags &= ~CF_RUNNING;
		721	next->flags \|= CF_RUNNING;
749		722
750	LOCK;	723	LOCK;
751		724
752	if (next->mainstack)	725	if (next->flags & CF_NEW)
		726	{
		727	/* need to start coroutine */
		728	next->flags &= ~CF_NEW;
		729	/* first get rid of the old state */
		730	SAVE (prev, -1);
		731	/* setup coroutine call */
		732	setup_coro (next);
		733	/* need a new stack */
		734	assert (!next->stack);
		735	}
		736	else
753	{	737	{
754	/* coroutine already started */	738	/* coroutine already started */
755	SAVE (prev, flags);	739	SAVE (prev, flags);
756	LOAD (next);	740	LOAD (next);
757	}	741	}
758	else	742
		743	prev__cctx = prev->cctx;
		744
		745	/* possibly "free" the cctx */
		746	if (prev__cctx->idle_sp == STACKLEVEL)
759	{	747	{
760	/* need to start coroutine */	748	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
761	/* first get rid of the old state */	749	assert (PL_top_env == prev__cctx->top_env);
762	SAVE (prev, -1);	750
763	/* setup coroutine call */	751	prev->cctx = 0;
764	setup_coro (next);	752
765	/* need a stack */	753	cctx_put (prev__cctx);
766	next->stack = 0;	754	prev__cctx->inuse = 0;
767	}	755	}
768		756
769	if (!prev->stack)	757	if (!next->cctx)
770	/* create a new empty context */
771	Newz (0, prev->stack, 1, coro_stack);
772
773	prev__stack = prev->stack;
774
775	/* possibly "free" the stack */
776	if (prev__stack->idle_sp == STACKLEVEL)
777	{	758	{
778	stack_put (prev__stack);	759	next->cctx = cctx_get ();
779	prev->stack = 0;	760	assert (!next->cctx->inuse);
		761	next->cctx->inuse = 1;
780	}	762	}
781		763
782	if (!next->stack)
783	next->stack = stack_get ();
784
785	if (prev__stack != next->stack)	764	if (prev__cctx != next->cctx)
786	{	765	{
787	prev__stack->top_env = PL_top_env;	766	prev__cctx->top_env = PL_top_env;
788	PL_top_env = next->stack->top_env;	767	PL_top_env = next->cctx->top_env;
789	coro_transfer (&prev__stack->cctx, &next->stack->cctx);	768	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
790	}	769	}
791		770
792	free_coro_mortal ();	771	free_coro_mortal ();
793		772
794	UNLOCK;	773	UNLOCK;
…		…
811		790
812	if (coro->mainstack && coro->mainstack != main_mainstack)	791	if (coro->mainstack && coro->mainstack != main_mainstack)
813	{	792	{
814	struct coro temp;	793	struct coro temp;
815		794
		795	if (coro->flags & CF_RUNNING)
		796	croak ("FATAL: tried to destroy currently running coroutine");
		797
816	SAVE ((&temp), TRANSFER_SAVE_ALL);	798	SAVE ((&temp), TRANSFER_SAVE_ALL);
817	LOAD (coro);	799	LOAD (coro);
818		800
819	coro_destroy_stacks ();	801	coro_destroy_stacks ();
820		802
821	LOAD ((&temp)); /* this will get rid of defsv etc.. */	803	LOAD ((&temp)); /* this will get rid of defsv etc.. */
822		804
823	coro->mainstack = 0;	805	coro->mainstack = 0;
824	}	806	}
825		807
826	stack_free (coro->stack);	808	cctx_destroy (coro->cctx);
827	SvREFCNT_dec (coro->args);	809	SvREFCNT_dec (coro->args);
828	Safefree (coro);	810	Safefree (coro);
829	}	811	}
830		812
831	static int	813	static int
…		…
891	}	873	}
892		874
893	static void	875	static void
894	api_transfer (SV prev, SV next, int flags)	876	api_transfer (SV prev, SV next, int flags)
895	{	877	{
896	dTHX;
897	struct transfer_args ta;	878	struct transfer_args ta;
898		879
899	prepare_transfer (&ta, prev, next, flags);	880	prepare_transfer (&ta, prev, next, flags);
900	TRANSFER (ta);	881	TRANSFER (ta);
901	}	882	}
…		…
908	#define PRIO_LOW -1	889	#define PRIO_LOW -1
909	#define PRIO_IDLE -3	890	#define PRIO_IDLE -3
910	#define PRIO_MIN -4	891	#define PRIO_MIN -4
911		892
912	/* for Coro.pm */	893	/* for Coro.pm */
913	static GV coro_current, coro_idle;	894	static SV *coro_current;
914	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	895	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
915	static int coro_nready;	896	static int coro_nready;
916		897
917	static void	898	static void
918	coro_enq (SV *sv)	899	coro_enq (SV *coro_sv)
919	{	900	{
920	int prio;
921
922	if (SvTYPE (sv) != SVt_PVHV)
923	croak ("Coro::ready tried to enqueue something that is not a coroutine");
924
925	prio = SvSTATE (sv)->prio;
926
927	av_push (coro_ready [prio - PRIO_MIN], sv);	901	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
928	coro_nready++;	902	coro_nready++;
929	}	903	}
930		904
931	static SV *	905	static SV *
932	coro_deq (int min_prio)	906	coro_deq (int min_prio)
…		…
945	}	919	}
946		920
947	return 0;	921	return 0;
948	}	922	}
949		923
950	static void	924	static int
951	api_ready (SV *coro)	925	api_ready (SV *coro_sv)
952	{	926	{
953	dTHX;	927	struct coro *coro;
954		928
955	if (SvROK (coro))	929	if (SvROK (coro_sv))
956	coro = SvRV (coro);	930	coro_sv = SvRV (coro_sv);
		931
		932	coro = SvSTATE (coro_sv);
		933
		934	if (coro->flags & CF_READY)
		935	return 0;
		936
		937	#if 0 /* this is actually harmless */
		938	if (coro->flags & CF_RUNNING)
		939	croak ("Coro::ready called on currently running coroutine");
		940	#endif
		941
		942	coro->flags \|= CF_READY;
957		943
958	LOCK;	944	LOCK;
959	coro_enq (SvREFCNT_inc (coro));	945	coro_enq (SvREFCNT_inc (coro_sv));
960	UNLOCK;	946	UNLOCK;
		947
		948	return 1;
		949	}
		950
		951	static int
		952	api_is_ready (SV *coro_sv)
		953	{
		954	return !!SvSTATE (coro_sv)->flags & CF_READY;
961	}	955	}
962		956
963	static void	957	static void
964	prepare_schedule (struct transfer_args *ta)	958	prepare_schedule (struct transfer_args *ta)
965	{	959	{
966	SV current, prev, *next;	960	SV prev, next;
967
968	current = GvSV (coro_current);
969		961
970	for (;;)	962	for (;;)
971	{	963	{
972	LOCK;	964	LOCK;
973	next = coro_deq (PRIO_MIN);	965	next = coro_deq (PRIO_MIN);
…		…
982	ENTER;	974	ENTER;
983	SAVETMPS;	975	SAVETMPS;
984		976
985	PUSHMARK (SP);	977	PUSHMARK (SP);
986	PUTBACK;	978	PUTBACK;
987	call_sv (GvSV (coro_idle), G_DISCARD);	979	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
988		980
989	FREETMPS;	981	FREETMPS;
990	LEAVE;	982	LEAVE;
991	}	983	}
992	}	984	}
993		985
994	prev = SvRV (current);	986	prev = SvRV (coro_current);
995	SvRV (current) = next;	987	SvRV_set (coro_current, next);
996		988
997	/* free this only after the transfer */	989	/* free this only after the transfer */
998	LOCK;	990	LOCK;
999	free_coro_mortal ();	991	free_coro_mortal ();
1000	UNLOCK;	992	UNLOCK;
1001	coro_mortal = prev;	993	coro_mortal = prev;
1002		994
		995	assert (!SvROK(prev));//D
		996	assert (!SvROK(next));//D
		997
1003	ta->prev = SvSTATE (prev);	998	ta->prev = SvSTATE (prev);
1004	ta->next = SvSTATE (next);	999	ta->next = SvSTATE (next);
1005	ta->flags = TRANSFER_SAVE_ALL;	1000	ta->flags = TRANSFER_SAVE_ALL;
		1001
		1002	assert (ta->flags & CF_READY);
		1003	ta->next->flags &= ~CF_READY;
1006	}	1004	}
1007		1005
1008	static void	1006	static void
1009	prepare_cede (struct transfer_args *ta)	1007	prepare_cede (struct transfer_args *ta)
1010	{	1008	{
1011	LOCK;	1009	api_ready (coro_current);
1012	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
1013	UNLOCK;
1014		1010
1015	prepare_schedule (ta);	1011	prepare_schedule (ta);
1016	}	1012	}
1017		1013
1018	static void	1014	static void
1019	api_schedule (void)	1015	api_schedule (void)
1020	{	1016	{
1021	dTHX;
1022	struct transfer_args ta;	1017	struct transfer_args ta;
1023		1018
1024	prepare_schedule (&ta);	1019	prepare_schedule (&ta);
1025	TRANSFER (ta);	1020	TRANSFER (ta);
1026	}	1021	}
1027		1022
1028	static void	1023	static void
1029	api_cede (void)	1024	api_cede (void)
1030	{	1025	{
1031	dTHX;
1032	struct transfer_args ta;	1026	struct transfer_args ta;
1033		1027
1034	prepare_cede (&ta);	1028	prepare_cede (&ta);
1035	TRANSFER (ta);	1029	TRANSFER (ta);
1036	}	1030	}
…		…
1068	HV *hv;	1062	HV *hv;
1069	int i;	1063	int i;
1070		1064
1071	Newz (0, coro, 1, struct coro);	1065	Newz (0, coro, 1, struct coro);
1072	coro->args = newAV ();	1066	coro->args = newAV ();
		1067	coro->flags = CF_NEW;
1073		1068
1074	hv = newHV ();	1069	hv = newHV ();
1075	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1070	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1076	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1071	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1077		1072
1078	for (i = 1; i < items; i++)	1073	for (i = 1; i < items; i++)
1079	av_push (coro->args, newSVsv (ST (i)));	1074	av_push (coro->args, newSVsv (ST (i)));
1080
1081	/coro->mainstack = 0; //actual work is done inside transfer /
1082	/coro->stack = 0;/
1083	}	1075	}
1084	OUTPUT:	1076	OUTPUT:
1085	RETVAL	1077	RETVAL
1086		1078
1087	void	1079	void
1088	_set_stacklevel (...)	1080	_set_stacklevel (...)
1089	ALIAS:	1081	ALIAS:
1090	Coro::State::transfer = 1	1082	Coro::State::transfer = 1
1091	Coro::schedule = 2	1083	Coro::schedule = 2
1092	Coro::cede = 3	1084	Coro::cede = 3
1093	Coro::Cont::yield = 4
1094	CODE:	1085	CODE:
1095	{	1086	{
1096	struct transfer_args ta;	1087	struct transfer_args ta;
1097		1088
1098	switch (ix)	1089	switch (ix)
1099	{	1090	{
1100	case 0:	1091	case 0:
1101	ta.prev = (struct coro )INT2PTR (coro_stack , SvIV (ST (0)));	1092	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1102	ta.next = 0;	1093	ta.next = 0;
1103	ta.flags = TRANSFER_SET_STACKLEVEL;	1094	ta.flags = TRANSFER_SET_STACKLEVEL;
1104	break;	1095	break;
1105		1096
1106	case 1:	1097	case 1:
1107	if (items != 3)	1098	if (items != 3)
1108	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);	1099	croak ("Coro::State::transfer (prev,next,flags) expects three arguments, not %d", items);
1109		1100
1110	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));	1101	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));
1111	break;	1102	break;
1112		1103
1113	case 2:	1104	case 2:
…		…
1115	break;	1106	break;
1116		1107
1117	case 3:	1108	case 3:
1118	prepare_cede (&ta);	1109	prepare_cede (&ta);
1119	break;	1110	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	}	1111	}
1148		1112
1149	TRANSFER (ta);	1113	TRANSFER (ta);
1150	}	1114	}
1151		1115
…		…
1166	int code	1130	int code
1167	PROTOTYPE: $	1131	PROTOTYPE: $
1168	CODE:	1132	CODE:
1169	_exit (code);	1133	_exit (code);
1170		1134
		1135	int
		1136	cctx_count ()
		1137	CODE:
		1138	RETVAL = cctx_count;
		1139	OUTPUT:
		1140	RETVAL
		1141
		1142	int
		1143	cctx_idle ()
		1144	CODE:
		1145	RETVAL = cctx_idle;
		1146	OUTPUT:
		1147	RETVAL
		1148
1171	MODULE = Coro::State PACKAGE = Coro	1149	MODULE = Coro::State PACKAGE = Coro
1172		1150
1173	BOOT:	1151	BOOT:
1174	{	1152	{
1175	int i;	1153	int i;
…		…
1181	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1159	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1182	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1160	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1183	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1161	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1184	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1162	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1185		1163
1186	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1164	coro_current = get_sv ("Coro::current", FALSE);
1187	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1165	SvREADONLY_on (coro_current);
1188		1166
1189	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1167	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1190	coro_ready[i] = newAV ();	1168	coro_ready[i] = newAV ();
1191		1169
1192	{	1170	{
1193	SV *sv = perl_get_sv("Coro::API", 1);	1171	SV *sv = perl_get_sv("Coro::API", 1);
1194		1172
1195	coroapi.schedule = api_schedule;	1173	coroapi.schedule = api_schedule;
1196	coroapi.cede = api_cede;	1174	coroapi.cede = api_cede;
1197	coroapi.ready = api_ready;	1175	coroapi.ready = api_ready;
		1176	coroapi.is_ready = api_is_ready;
1198	coroapi.nready = &coro_nready;	1177	coroapi.nready = &coro_nready;
1199	coroapi.current = coro_current;	1178	coroapi.current = coro_current;
1200		1179
1201	GCoroAPI = &coroapi;	1180	GCoroAPI = &coroapi;
1202	sv_setiv (sv, (IV)&coroapi);	1181	sv_setiv (sv, (IV)&coroapi);
…		…
1222		1201
1223	coro->prio = newprio;	1202	coro->prio = newprio;
1224	}	1203	}
1225	}	1204	}
1226		1205
1227	void	1206	SV *
1228	ready (SV *self)	1207	ready (SV *self)
1229	PROTOTYPE: $	1208	PROTOTYPE: $
1230	CODE:	1209	CODE:
1231	api_ready (self);	1210	RETVAL = boolSV (api_ready (self));
		1211	OUTPUT:
		1212	RETVAL
		1213
		1214	SV *
		1215	is_ready (SV *self)
		1216	PROTOTYPE: $
		1217	CODE:
		1218	RETVAL = boolSV (api_is_ready (self));
		1219	OUTPUT:
		1220	RETVAL
1232		1221
1233	int	1222	int
1234	nready (...)	1223	nready (...)
1235	PROTOTYPE:	1224	PROTOTYPE:
1236	CODE:	1225	CODE:
1237	RETVAL = coro_nready;	1226	RETVAL = coro_nready;
1238	OUTPUT:	1227	OUTPUT:
1239	RETVAL	1228	RETVAL
1240		1229
		1230	void
		1231	_set_current (SV *current)
		1232	PROTOTYPE: $
		1233	CODE:
		1234	SvREFCNT_dec (SvRV (coro_current));
		1235	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
		1236
1241	MODULE = Coro::State PACKAGE = Coro::AIO	1237	MODULE = Coro::State PACKAGE = Coro::AIO
1242		1238
1243	SV *	1239	SV *
1244	_get_state ()	1240	_get_state ()
1245	CODE:	1241	CODE:
1246	{	1242	{
1247	struct {	1243	struct io_state *data;
1248	int errorno;
1249	int laststype;
1250	int laststatval;
1251	Stat_t statcache;
1252	} data;
1253		1244
		1245	RETVAL = newSV (sizeof (struct io_state));
		1246	data = (struct io_state *)SvPVX (RETVAL);
		1247	SvCUR_set (RETVAL, sizeof (struct io_state));
		1248	SvPOK_only (RETVAL);
		1249
1254	data.errorno = errno;	1250	data->errorno = errno;
1255	data.laststype = PL_laststype;	1251	data->laststype = PL_laststype;
1256	data.laststatval = PL_laststatval;	1252	data->laststatval = PL_laststatval;
1257	data.statcache = PL_statcache;	1253	data->statcache = PL_statcache;
1258
1259	RETVAL = newSVpvn ((char *)&data, sizeof data);
1260	}	1254	}
1261	OUTPUT:	1255	OUTPUT:
1262	RETVAL	1256	RETVAL
1263		1257
1264	void	1258	void
1265	_set_state (char *data_)	1259	_set_state (char *data_)
1266	PROTOTYPE: $	1260	PROTOTYPE: $
1267	CODE:	1261	CODE:
1268	{	1262	{
1269	struct {	1263	struct io_state data = (void )data_;
1270	int errorno;
1271	int laststype;
1272	int laststatval;
1273	Stat_t statcache;
1274	} data = (void )data_;
1275		1264
1276	errno = data->errorno;	1265	errno = data->errorno;
1277	PL_laststype = data->laststype;	1266	PL_laststype = data->laststype;
1278	PL_laststatval = data->laststatval;	1267	PL_laststatval = data->laststatval;
1279	PL_statcache = data->statcache;	1268	PL_statcache = data->statcache;
1280	}	1269	}
		1270

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Comparing Coro/Coro/State.xs (file contents): Revision 1.105 by root, Mon Nov 27 02:01:33 2006 UTC vs. Revision 1.121 by root, Sat Dec 2 20:40:25 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.105 by root, Mon Nov 27 02:01:33 2006 UTC vs.
Revision 1.121 by root, Sat Dec 2 20:40:25 2006 UTC