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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.135 by root, Fri Jan 5 18:25:51 2007 UTC vs.
Revision 1.151 by root, Wed Sep 19 21:39:15 2007 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
		2
		3	#define PERL_NO_GET_CONTEXT
2		4
3	#include "EXTERN.h"	5	#include "EXTERN.h"
4	#include "perl.h"	6	#include "perl.h"
5	#include "XSUB.h"	7	#include "XSUB.h"
6		8
31	#else	33	#else
32	# define PAGESIZE 0	34	# define PAGESIZE 0
33	# define BOOT_PAGESIZE (void)0	35	# define BOOT_PAGESIZE (void)0
34	#endif	36	#endif
35		37
36	#if USE_VALGRIND	38	#if CORO_USE_VALGRIND
37	# include <valgrind/valgrind.h>	39	# include <valgrind/valgrind.h>
		40	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
		41	#else
		42	# define REGISTER_STACK(cctx,start,end)
38	#endif	43	#endif
39		44
40	/* the maximum number of idle cctx that will be pooled */	45	/* the maximum number of idle cctx that will be pooled */
41	#define MAX_IDLE_CCTX 8	46	#define MAX_IDLE_CCTX 8
42		47
…		…
71	#ifndef SvRV_set	76	#ifndef SvRV_set
72	# define SvRV_set(s,v) SvRV(s) = (v)	77	# define SvRV_set(s,v) SvRV(s) = (v)
73	#endif	78	#endif
74		79
75	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
76	# undef STACKGUARD	81	# undef CORO_STACKGUARD
77	#endif	82	#endif
78		83
79	#ifndef STACKGUARD	84	#ifndef CORO_STACKGUARD
80	# define STACKGUARD 0	85	# define CORO_STACKGUARD 0
81	#endif	86	#endif
82		87
83	/* prefer perl internal functions over our own? */	88	/* prefer perl internal functions over our own? */
84	#ifndef PREFER_PERL_FUNCTIONS	89	#ifndef CORO_PREFER_PERL_FUNCTIONS
85	# define PREFER_PERL_FUNCTIONS 0	90	# define CORO_PREFER_PERL_FUNCTIONS 0
86	#endif	91	#endif
87		92
88	/* The next macro should declare a variable stacklevel that contains and approximation	93	/* The next macro should declare a variable stacklevel that contains and approximation
89	* to the current C stack pointer. Its property is that it changes with each call	94	* to the current C stack pointer. Its property is that it changes with each call
90	* and should be unique. */	95	* and should be unique. */
…		…
112	#else	117	#else
113	# define LOCK (void)0	118	# define LOCK (void)0
114	# define UNLOCK (void)0	119	# define UNLOCK (void)0
115	#endif	120	#endif
116		121
		122	/* helper storage struct for Coro::AIO */
117	struct io_state	123	struct io_state
118	{	124	{
119	int errorno;	125	int errorno;
120	I32 laststype;	126	I32 laststype;
121	int laststatval;	127	int laststatval;
122	Stat_t statcache;	128	Stat_t statcache;
123	};	129	};
124		130
		131	static size_t coro_stacksize = CORO_STACKSIZE;
125	static struct CoroAPI coroapi;	132	static struct CoroAPI coroapi;
126	static AV main_mainstack; / used to differentiate between $main and others */	133	static AV main_mainstack; / used to differentiate between $main and others */
		134	static JMPENV *main_top_env;
127	static HV coro_state_stash, coro_stash;	135	static HV coro_state_stash, coro_stash;
128	static SV coro_mortal; / will be freed after next transfer */	136	static SV coro_mortal; / will be freed after next transfer */
129		137
130	static struct coro_cctx *cctx_first;	138	static struct coro_cctx *cctx_first;
131	static int cctx_count, cctx_idle;	139	static int cctx_count, cctx_idle;
…		…
134	typedef struct coro_cctx {	142	typedef struct coro_cctx {
135	struct coro_cctx *next;	143	struct coro_cctx *next;
136		144
137	/* the stack */	145	/* the stack */
138	void *sptr;	146	void *sptr;
139	long ssize; /* positive == mmap, otherwise malloc */	147	size_t ssize;
140		148
141	/* cpu state */	149	/* cpu state */
142	void idle_sp; / sp of top-level transfer/schedule/cede call */	150	void idle_sp; / sp of top-level transfer/schedule/cede call */
143	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */	151	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
144	JMPENV *top_env;	152	JMPENV *top_env;
145	coro_context cctx;	153	coro_context cctx;
146		154
147	int inuse;
148
149	#if USE_VALGRIND	155	#if CORO_USE_VALGRIND
150	int valgrind_id;	156	int valgrind_id;
151	#endif	157	#endif
		158	char inuse, mapped;
152	} coro_cctx;	159	} coro_cctx;
153		160
154	enum {	161	enum {
155	CF_RUNNING = 0x0001, /* coroutine is running */	162	CF_RUNNING = 0x0001, /* coroutine is running */
156	CF_READY = 0x0002, /* coroutine is ready */	163	CF_READY = 0x0002, /* coroutine is ready */
…		…
171		178
172	/* optionally saved, might be zero */	179	/* optionally saved, might be zero */
173	AV defav; / @_ */	180	AV defav; / @_ */
174	SV defsv; / $_ */	181	SV defsv; / $_ */
175	SV errsv; / $@ */	182	SV errsv; / $@ */
		183	GV deffh; / default filehandle */
176	SV irssv; / $/ */	184	SV irssv; / $/ */
177	SV irssv_sv; / real $/ cache */	185	SV irssv_sv; / real $/ cache */
178		186
179	#define VAR(name,type) type name;	187	#define VAR(name,type) type name;
180	# include "state.h"	188	# include "state.h"
181	#undef VAR	189	#undef VAR
182		190
183	/* coro process data */	191	/* coro process data */
184	int prio;	192	int prio;
		193
		194	/* linked list */
		195	struct coro next, prev;
		196	HV hv; / the perl hash associated with this coro, if any */
185	};	197	};
186		198
187	typedef struct coro *Coro__State;	199	typedef struct coro *Coro__State;
188	typedef struct coro *Coro__State_or_hashref;	200	typedef struct coro *Coro__State_or_hashref;
189		201
		202	/ Coro ******************************************************************/
		203
		204	#define PRIO_MAX 3
		205	#define PRIO_HIGH 1
		206	#define PRIO_NORMAL 0
		207	#define PRIO_LOW -1
		208	#define PRIO_IDLE -3
		209	#define PRIO_MIN -4
		210
		211	/* for Coro.pm */
		212	static SV *coro_current;
		213	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
		214	static int coro_nready;
		215	static struct coro *first;
		216
		217	/ lowlevel stuff ********************************************************/
		218
190	static AV *	219	static AV *
191	coro_clone_padlist (CV *cv)	220	coro_clone_padlist (pTHX_ CV *cv)
192	{	221	{
193	AV *padlist = CvPADLIST (cv);	222	AV *padlist = CvPADLIST (cv);
194	AV newpadlist, newpad;	223	AV newpadlist, newpad;
195		224
196	newpadlist = newAV ();	225	newpadlist = newAV ();
…		…
208		237
209	return newpadlist;	238	return newpadlist;
210	}	239	}
211		240
212	static void	241	static void
213	free_padlist (AV *padlist)	242	free_padlist (pTHX_ AV *padlist)
214	{	243	{
215	/* may be during global destruction */	244	/* may be during global destruction */
216	if (SvREFCNT (padlist))	245	if (SvREFCNT (padlist))
217	{	246	{
218	I32 i = AvFILLp (padlist);	247	I32 i = AvFILLp (padlist);
…		…
239	AV *padlist;	268	AV *padlist;
240	AV av = (AV )mg->mg_obj;	269	AV av = (AV )mg->mg_obj;
241		270
242	/* casting is fun. */	271	/* casting is fun. */
243	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	272	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
244	free_padlist (padlist);	273	free_padlist (aTHX_ padlist);
245		274
246	SvREFCNT_dec (av);	275	SvREFCNT_dec (av);
247		276
248	return 0;	277	return 0;
249	}	278	}
…		…
259	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	288	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
260	: 0	289	: 0
261		290
262	/* the next two functions merely cache the padlists */	291	/* the next two functions merely cache the padlists */
263	static void	292	static void
264	get_padlist (CV *cv)	293	get_padlist (pTHX_ CV *cv)
265	{	294	{
266	MAGIC *mg = CORO_MAGIC (cv);	295	MAGIC *mg = CORO_MAGIC (cv);
267	AV *av;	296	AV *av;
268		297
269	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	298	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
270	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	299	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
271	else	300	else
272	{	301	{
273	#if PREFER_PERL_FUNCTIONS	302	#if CORO_PREFER_PERL_FUNCTIONS
274	/* this is probably cleaner, but also slower? */	303	/* this is probably cleaner, but also slower? */
275	CV *cp = Perl_cv_clone (cv);	304	CV *cp = Perl_cv_clone (cv);
276	CvPADLIST (cv) = CvPADLIST (cp);	305	CvPADLIST (cv) = CvPADLIST (cp);
277	CvPADLIST (cp) = 0;	306	CvPADLIST (cp) = 0;
278	SvREFCNT_dec (cp);	307	SvREFCNT_dec (cp);
279	#else	308	#else
280	CvPADLIST (cv) = coro_clone_padlist (cv);	309	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
281	#endif	310	#endif
282	}	311	}
283	}	312	}
284		313
285	static void	314	static void
286	put_padlist (CV *cv)	315	put_padlist (pTHX_ CV *cv)
287	{	316	{
288	MAGIC *mg = CORO_MAGIC (cv);	317	MAGIC *mg = CORO_MAGIC (cv);
289	AV *av;	318	AV *av;
290		319
291	if (!mg)	320	if (!mg)
…		…
302	av_extend (av, AvMAX (av) + 1);	331	av_extend (av, AvMAX (av) + 1);
303		332
304	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	333	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
305	}	334	}
306		335
		336	/ load & save, init *****************************************************/
		337
307	#define SB do {	338	#define SB do {
308	#define SE } while (0)	339	#define SE } while (0)
309		340
310	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	341	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
311		342
312	static void	343	static void
313	load_perl (Coro__State c)	344	load_perl (pTHX_ Coro__State c)
314	{	345	{
315	#define VAR(name,type) PL_ ## name = c->name;	346	#define VAR(name,type) PL_ ## name = c->name;
316	# include "state.h"	347	# include "state.h"
317	#undef VAR	348	#undef VAR
318		349
319	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	350	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
320	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	351	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
321	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	352	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		353	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
		354
322	if (c->irssv)	355	if (c->irssv)
323	{	356	{
324	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))	357	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		358	{
325	SvREFCNT_dec (c->irssv);	359	SvREFCNT_dec (c->irssv);
		360	c->irssv = 0;
		361	}
326	else	362	else
327	{	363	{
328	REPLACE_SV (PL_rs, c->irssv);	364	REPLACE_SV (PL_rs, c->irssv);
329	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);	365	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
330	sv_setsv (c->irssv_sv, PL_rs);	366	sv_setsv (c->irssv_sv, PL_rs);
…		…
336	CV *cv;	372	CV *cv;
337		373
338	/* now do the ugly restore mess */	374	/* now do the ugly restore mess */
339	while ((cv = (CV *)POPs))	375	while ((cv = (CV *)POPs))
340	{	376	{
341	put_padlist (cv); /* mark this padlist as available */	377	put_padlist (aTHX_ cv); /* mark this padlist as available */
342	CvDEPTH (cv) = PTR2IV (POPs);	378	CvDEPTH (cv) = PTR2IV (POPs);
343	CvPADLIST (cv) = (AV *)POPs;	379	CvPADLIST (cv) = (AV *)POPs;
344	}	380	}
345		381
346	PUTBACK;	382	PUTBACK;
347	}	383	}
348	}	384	}
349		385
350	static void	386	static void
351	save_perl (Coro__State c)	387	save_perl (pTHX_ Coro__State c)
352	{	388	{
353	{	389	{
354	dSP;	390	dSP;
355	I32 cxix = cxstack_ix;	391	I32 cxix = cxstack_ix;
356	PERL_CONTEXT *ccstk = cxstack;	392	PERL_CONTEXT *ccstk = cxstack;
…		…
368	{	404	{
369	while (cxix >= 0)	405	while (cxix >= 0)
370	{	406	{
371	PERL_CONTEXT *cx = &ccstk[cxix--];	407	PERL_CONTEXT *cx = &ccstk[cxix--];
372		408
373	if (CxTYPE (cx) == CXt_SUB)	409	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
374	{	410	{
375	CV *cv = cx->blk_sub.cv;	411	CV *cv = cx->blk_sub.cv;
376		412
377	if (CvDEPTH (cv))	413	if (CvDEPTH (cv))
378	{	414	{
…		…
380	PUSHs ((SV *)CvPADLIST (cv));	416	PUSHs ((SV *)CvPADLIST (cv));
381	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	417	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
382	PUSHs ((SV *)cv);	418	PUSHs ((SV *)cv);
383		419
384	CvDEPTH (cv) = 0;	420	CvDEPTH (cv) = 0;
385	get_padlist (cv);	421	get_padlist (aTHX_ cv);
386	}	422	}
387	}	423	}
388	}	424	}
389		425
390	if (top_si->si_type == PERLSI_MAIN)	426	if (top_si->si_type == PERLSI_MAIN)
…		…
399	}	435	}
400		436
401	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	437	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
402	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	438	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
403	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	439	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		440	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;
404	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	441	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
405		442
406	#define VAR(name,type)c->name = PL_ ## name;	443	#define VAR(name,type)c->name = PL_ ## name;
407	# include "state.h"	444	# include "state.h"
408	#undef VAR	445	#undef VAR
…		…
412	* allocate various perl stacks. This is an exact copy	449	* allocate various perl stacks. This is an exact copy
413	* of perl.c:init_stacks, except that it uses less memory	450	* of perl.c:init_stacks, except that it uses less memory
414	* on the (sometimes correct) assumption that coroutines do	451	* on the (sometimes correct) assumption that coroutines do
415	* not usually need a lot of stackspace.	452	* not usually need a lot of stackspace.
416	*/	453	*/
417	#if PREFER_PERL_FUNCTIONS	454	#if CORO_PREFER_PERL_FUNCTIONS
418	# define coro_init_stacks init_stacks	455	# define coro_init_stacks init_stacks
419	#else	456	#else
420	static void	457	static void
421	coro_init_stacks ()	458	coro_init_stacks (pTHX)
422	{	459	{
423	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	460	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
424	PL_curstackinfo->si_type = PERLSI_MAIN;	461	PL_curstackinfo->si_type = PERLSI_MAIN;
425	PL_curstack = PL_curstackinfo->si_stack;	462	PL_curstack = PL_curstackinfo->si_stack;
426	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	463	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
…		…
460		497
461	/*	498	/*
462	* destroy the stacks, the callchain etc...	499	* destroy the stacks, the callchain etc...
463	*/	500	*/
464	static void	501	static void
465	coro_destroy_stacks ()	502	coro_destroy_stacks (pTHX)
466	{	503	{
467	if (!IN_DESTRUCT)	504	if (!IN_DESTRUCT)
468	{	505	{
469	/* restore all saved variables and stuff */	506	/* restore all saved variables and stuff */
470	LEAVE_SCOPE (0);	507	LEAVE_SCOPE (0);
…		…
503	#if !PERL_VERSION_ATLEAST (5,9,0)	540	#if !PERL_VERSION_ATLEAST (5,9,0)
504	Safefree (PL_retstack);	541	Safefree (PL_retstack);
505	#endif	542	#endif
506	}	543	}
507		544
		545	/ coroutine stack handling **********************************************/
		546
508	static void	547	static void
509	setup_coro (struct coro *coro)	548	setup_coro (pTHX_ struct coro *coro)
510	{	549	{
511	/*	550	/*
512	* emulate part of the perl startup here.	551	* emulate part of the perl startup here.
513	*/	552	*/
514
515	coro_init_stacks ();	553	coro_init_stacks (aTHX);
516		554
517	PL_curcop = &PL_compiling;	555	PL_curcop = &PL_compiling;
518	PL_in_eval = EVAL_NULL;	556	PL_in_eval = EVAL_NULL;
		557	PL_comppad = 0;
519	PL_curpm = 0;	558	PL_curpm = 0;
520	PL_localizing = 0;	559	PL_localizing = 0;
521	PL_dirty = 0;	560	PL_dirty = 0;
522	PL_restartop = 0;	561	PL_restartop = 0;
523		562
…		…
531	Zero (&myop, 1, LOGOP);	570	Zero (&myop, 1, LOGOP);
532	myop.op_next = Nullop;	571	myop.op_next = Nullop;
533	myop.op_flags = OPf_WANT_VOID;	572	myop.op_flags = OPf_WANT_VOID;
534		573
535	PUSHMARK (SP);	574	PUSHMARK (SP);
536	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	575	XPUSHs (av_shift (GvAV (PL_defgv)));
537	PUTBACK;	576	PUTBACK;
538	PL_op = (OP *)&myop;	577	PL_op = (OP *)&myop;
539	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	578	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
540	SPAGAIN;	579	SPAGAIN;
541	}	580	}
542		581
543	ENTER; /* necessary e.g. for dounwind */	582	ENTER; /* necessary e.g. for dounwind */
544	}	583	}
545		584
546	static void	585	static void
547	free_coro_mortal ()	586	free_coro_mortal (pTHX)
548	{	587	{
549	if (coro_mortal)	588	if (coro_mortal)
550	{	589	{
551	SvREFCNT_dec (coro_mortal);	590	SvREFCNT_dec (coro_mortal);
552	coro_mortal = 0;	591	coro_mortal = 0;
553	}	592	}
554	}	593	}
555		594
556	/* inject a fake call to Coro::State::_cctx_init into the execution */	595	/* inject a fake call to Coro::State::_cctx_init into the execution */
		596	/* _cctx_init should be careful, as it could be called at almost any time */
		597	/* during execution of a perl program */
557	static void NOINLINE	598	static void NOINLINE
558	prepare_cctx (coro_cctx *cctx)	599	prepare_cctx (pTHX_ coro_cctx *cctx)
559	{	600	{
560	dSP;	601	dSP;
561	LOGOP myop;	602	LOGOP myop;
562		603
563	Zero (&myop, 1, LOGOP);	604	Zero (&myop, 1, LOGOP);
…		…
572	PL_op = (OP *)&myop;	613	PL_op = (OP *)&myop;
573	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	614	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
574	SPAGAIN;	615	SPAGAIN;
575	}	616	}
576		617
		618	/*
		619	* this is a _very_ stripped down perl interpreter ;)
		620	*/
577	static void	621	static void
578	coro_run (void *arg)	622	coro_run (void *arg)
579	{	623	{
		624	dTHX;
		625
580	/* coro_run is the alternative tail of transfer(), so unlock here. */	626	/* coro_run is the alternative tail of transfer(), so unlock here. */
581	UNLOCK;	627	UNLOCK;
582		628
583	/*
584	* this is a _very_ stripped down perl interpreter ;)
585	*/
586	PL_top_env = &PL_start_env;	629	PL_top_env = &PL_start_env;
587		630
588	/* inject call to cctx_init */	631	/* inject a fake subroutine call to cctx_init */
589	prepare_cctx ((coro_cctx *)arg);	632	prepare_cctx (aTHX_ (coro_cctx *)arg);
590		633
591	/* somebody will hit me for both perl_run and PL_restartop */	634	/* somebody or something will hit me for both perl_run and PL_restartop */
592	PL_restartop = PL_op;	635	PL_restartop = PL_op;
593	perl_run (PL_curinterp);	636	perl_run (PL_curinterp);
594		637
595	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	638	/*
596	abort ();	639	* If perl-run returns we assume exit() was being called or the coro
		640	* fell off the end, which seems to be the only valid (non-bug)
		641	* reason for perl_run to return. We try to exit by jumping to the
		642	* bootstrap-time "top" top_env, as we cannot restore the "main"
		643	* coroutine as Coro has no such concept
		644	*/
		645	PL_top_env = main_top_env;
		646	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
597	}	647	}
598		648
599	static coro_cctx *	649	static coro_cctx *
600	cctx_new ()	650	cctx_new ()
601	{	651	{
602	coro_cctx *cctx;	652	coro_cctx *cctx;
		653	void *stack_start;
		654	size_t stack_size;
603		655
604	++cctx_count;	656	++cctx_count;
605		657
606	Newz (0, cctx, 1, coro_cctx);	658	Newz (0, cctx, 1, coro_cctx);
607		659
608	#if HAVE_MMAP	660	#if HAVE_MMAP
609		661
610	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	662	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
611	/* mmap supposedly does allocate-on-write for us */	663	/* mmap supposedly does allocate-on-write for us */
612	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	664	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
613		665
614	if (cctx->sptr == (void *)-1)	666	if (cctx->sptr != (void *)-1)
615	{
616	perror ("FATAL: unable to mmap stack for coroutine");
617	_exit (EXIT_FAILURE);
618	}	667	{
619
620	# if STACKGUARD	668	# if CORO_STACKGUARD
621	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	669	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
622	# endif	670	# endif
		671	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		672	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		673	cctx->mapped = 1;
		674	}
		675	else
		676	#endif
		677	{
		678	cctx->ssize = coro_stacksize * (long)sizeof (long);
		679	New (0, cctx->sptr, coro_stacksize, long);
623		680
624	#else
625
626	cctx->ssize = STACKSIZE * (long)sizeof (long);
627	New (0, cctx->sptr, STACKSIZE, long);
628
629	if (!cctx->sptr)	681	if (!cctx->sptr)
630	{	682	{
631	perror ("FATAL: unable to malloc stack for coroutine");	683	perror ("FATAL: unable to allocate stack for coroutine");
632	_exit (EXIT_FAILURE);	684	_exit (EXIT_FAILURE);
633	}	685	}
634		686
635	#endif	687	stack_start = cctx->sptr;
		688	stack_size = cctx->ssize;
		689	}
636		690
637	#if USE_VALGRIND	691	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
638	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
639	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
640	cctx->ssize + (char *)cctx->sptr
641	);
642	#endif
643
644	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	692	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
645		693
646	return cctx;	694	return cctx;
647	}	695	}
648		696
649	static void	697	static void
…		…
652	if (!cctx)	700	if (!cctx)
653	return;	701	return;
654		702
655	--cctx_count;	703	--cctx_count;
656		704
657	#if USE_VALGRIND	705	#if CORO_USE_VALGRIND
658	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	706	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
659	#endif	707	#endif
660		708
661	#if HAVE_MMAP	709	#if HAVE_MMAP
		710	if (cctx->mapped)
662	munmap (cctx->sptr, cctx->ssize);	711	munmap (cctx->sptr, cctx->ssize);
663	#else	712	else
		713	#endif
664	Safefree (cctx->sptr);	714	Safefree (cctx->sptr);
665	#endif
666		715
667	Safefree (cctx);	716	Safefree (cctx);
668	}	717	}
669		718
670	static coro_cctx *	719	static coro_cctx *
671	cctx_get ()	720	cctx_get (pTHX)
672	{	721	{
673	coro_cctx *cctx;
674
675	if (cctx_first)	722	while (cctx_first)
676	{	723	{
677	cctx = cctx_first;	724	coro_cctx *cctx = cctx_first;
678	cctx_first = cctx->next;	725	cctx_first = cctx->next;
679	--cctx_idle;	726	--cctx_idle;
		727
		728	if (cctx->ssize >= coro_stacksize)
		729	return cctx;
		730
		731	cctx_destroy (cctx);
680	}	732	}
681	else	733
682	{
683	cctx = cctx_new ();
684	PL_op = PL_op->op_next;	734	PL_op = PL_op->op_next;
685	}
686
687	return cctx;	735	return cctx_new ();
688	}	736	}
689		737
690	static void	738	static void
691	cctx_put (coro_cctx *cctx)	739	cctx_put (coro_cctx *cctx)
692	{	740	{
…		…
704	++cctx_idle;	752	++cctx_idle;
705	cctx->next = cctx_first;	753	cctx->next = cctx_first;
706	cctx_first = cctx;	754	cctx_first = cctx;
707	}	755	}
708		756
		757	/ coroutine switching ***************************************************/
		758
709	/* never call directly, always through the coro_state_transfer global variable */	759	/* never call directly, always through the coro_state_transfer global variable */
710	static void NOINLINE	760	static void NOINLINE
711	transfer (struct coro prev, struct coro next)	761	transfer (pTHX_ struct coro prev, struct coro next)
712	{	762	{
713	dSTACKLEVEL;	763	dSTACKLEVEL;
714		764
715	/* sometimes transfer is only called to set idle_sp */	765	/* sometimes transfer is only called to set idle_sp */
716	if (!next)	766	if (!next)
…		…
749	if (next->flags & CF_NEW)	799	if (next->flags & CF_NEW)
750	{	800	{
751	/* need to start coroutine */	801	/* need to start coroutine */
752	next->flags &= ~CF_NEW;	802	next->flags &= ~CF_NEW;
753	/* first get rid of the old state */	803	/* first get rid of the old state */
754	save_perl (prev);	804	save_perl (aTHX_ prev);
755	/* setup coroutine call */	805	/* setup coroutine call */
756	setup_coro (next);	806	setup_coro (aTHX_ next);
757	/* need a new stack */	807	/* need a new stack */
758	assert (!next->cctx);	808	assert (!next->cctx);
759	}	809	}
760	else	810	else
761	{	811	{
762	/* coroutine already started */	812	/* coroutine already started */
763	save_perl (prev);	813	save_perl (aTHX_ prev);
764	load_perl (next);	814	load_perl (aTHX_ next);
765	}	815	}
766		816
767	prev__cctx = prev->cctx;	817	prev__cctx = prev->cctx;
768		818
769	/* possibly "free" the cctx */	819	/* possibly "free" the cctx */
…		…
778	prev__cctx->inuse = 0;	828	prev__cctx->inuse = 0;
779	}	829	}
780		830
781	if (!next->cctx)	831	if (!next->cctx)
782	{	832	{
783	next->cctx = cctx_get ();	833	next->cctx = cctx_get (aTHX);
784	assert (!next->cctx->inuse);	834	assert (!next->cctx->inuse);
785	next->cctx->inuse = 1;	835	next->cctx->inuse = 1;
786	}	836	}
787		837
788	if (prev__cctx != next->cctx)	838	if (prev__cctx != next->cctx)
…		…
790	prev__cctx->top_env = PL_top_env;	840	prev__cctx->top_env = PL_top_env;
791	PL_top_env = next->cctx->top_env;	841	PL_top_env = next->cctx->top_env;
792	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	842	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
793	}	843	}
794		844
795	free_coro_mortal ();	845	free_coro_mortal (aTHX);
796	UNLOCK;	846	UNLOCK;
797	}	847	}
798	}	848	}
799		849
800	struct transfer_args	850	struct transfer_args
801	{	851	{
802	struct coro prev, next;	852	struct coro prev, next;
803	};	853	};
804		854
805	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	855	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		856
		857	/ high level stuff ******************************************************/
806		858
807	static int	859	static int
808	coro_state_destroy (struct coro *coro)	860	coro_state_destroy (pTHX_ struct coro *coro)
809	{	861	{
810	if (coro->flags & CF_DESTROYED)	862	if (coro->flags & CF_DESTROYED)
811	return 0;	863	return 0;
812		864
813	coro->flags \|= CF_DESTROYED;	865	coro->flags \|= CF_DESTROYED;
		866
		867	if (coro->flags & CF_READY)
		868	{
		869	/* reduce nready, as destroying a ready coro effectively unreadies it */
		870	/* alternative: look through all ready queues and remove the coro */
		871	LOCK;
		872	--coro_nready;
		873	UNLOCK;
		874	}
		875	else
		876	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
814		877
815	if (coro->mainstack && coro->mainstack != main_mainstack)	878	if (coro->mainstack && coro->mainstack != main_mainstack)
816	{	879	{
		880	struct coro temp;
		881
817	assert (!(coro->flags & CF_RUNNING));	882	assert (!(coro->flags & CF_RUNNING));
818		883
819	struct coro temp;
820	Zero (&temp, 1, struct coro);	884	Zero (&temp, 1, struct coro);
821	temp.save = CORO_SAVE_ALL;	885	temp.save = CORO_SAVE_ALL;
822		886
823	if (coro->flags & CF_RUNNING)	887	if (coro->flags & CF_RUNNING)
824	croak ("FATAL: tried to destroy currently running coroutine");	888	croak ("FATAL: tried to destroy currently running coroutine");
825		889
826	save_perl (&temp);	890	save_perl (aTHX_ &temp);
827	load_perl (coro);	891	load_perl (aTHX_ coro);
828		892
829	coro_destroy_stacks ();	893	coro_destroy_stacks (aTHX);
830		894
831	load_perl (&temp); /* this will get rid of defsv etc.. */	895	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
832		896
833	coro->mainstack = 0;	897	coro->mainstack = 0;
834	}	898	}
835		899
836	cctx_destroy (coro->cctx);	900	cctx_destroy (coro->cctx);
837	SvREFCNT_dec (coro->args);	901	SvREFCNT_dec (coro->args);
838		902
		903	if (coro->next) coro->next->prev = coro->prev;
		904	if (coro->prev) coro->prev->next = coro->next;
		905	if (coro == first) first = coro->next;
		906
839	return 1;	907	return 1;
840	}	908	}
841		909
842	static int	910	static int
843	coro_state_free (pTHX_ SV sv, MAGIC mg)	911	coro_state_free (pTHX_ SV sv, MAGIC mg)
844	{	912	{
845	struct coro coro = (struct coro )mg->mg_ptr;	913	struct coro coro = (struct coro )mg->mg_ptr;
846	mg->mg_ptr = 0;	914	mg->mg_ptr = 0;
847		915
		916	coro->hv = 0;
		917
848	if (--coro->refcnt < 0)	918	if (--coro->refcnt < 0)
849	{	919	{
850	coro_state_destroy (coro);	920	coro_state_destroy (aTHX_ coro);
851	Safefree (coro);	921	Safefree (coro);
852	}	922	}
853		923
854	return 0;	924	return 0;
855	}	925	}
…		…
874	# define MGf_DUP 0	944	# define MGf_DUP 0
875	#endif	945	#endif
876	};	946	};
877		947
878	static struct coro *	948	static struct coro *
879	SvSTATE (SV *coro)	949	SvSTATE_ (pTHX_ SV *coro)
880	{	950	{
881	HV *stash;	951	HV *stash;
882	MAGIC *mg;	952	MAGIC *mg;
883		953
884	if (SvROK (coro))	954	if (SvROK (coro))
…		…
890	/* very slow, but rare, check */	960	/* very slow, but rare, check */
891	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	961	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
892	croak ("Coro::State object required");	962	croak ("Coro::State object required");
893	}	963	}
894		964
895	mg = SvMAGIC (coro);	965	mg = CORO_MAGIC (coro);
896	assert (mg->mg_type == PERL_MAGIC_ext);
897	return (struct coro *)mg->mg_ptr;	966	return (struct coro *)mg->mg_ptr;
898	}	967	}
899		968
		969	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		970
900	static void	971	static void
901	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	972	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
902	{	973	{
903	ta->prev = SvSTATE (prev_sv);	974	ta->prev = SvSTATE (prev_sv);
904	ta->next = SvSTATE (next_sv);	975	ta->next = SvSTATE (next_sv);
905	}	976	}
906		977
907	static void	978	static void
908	api_transfer (SV prev_sv, SV next_sv)	979	api_transfer (SV prev_sv, SV next_sv)
909	{	980	{
		981	dTHX;
910	struct transfer_args ta;	982	struct transfer_args ta;
911		983
912	prepare_transfer (&ta, prev_sv, next_sv);	984	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
913	TRANSFER (ta);	985	TRANSFER (ta);
914	}	986	}
915		987
916	static int	988	static int
917	api_save (SV *coro_sv, int new_save)	989	api_save (SV *coro_sv, int new_save)
918	{	990	{
		991	dTHX;
919	struct coro *coro = SvSTATE (coro_sv);	992	struct coro *coro = SvSTATE (coro_sv);
920	int old_save = coro->save;	993	int old_save = coro->save;
921		994
922	if (new_save >= 0)	995	if (new_save >= 0)
923	coro->save = new_save;	996	coro->save = new_save;
…		…
925	return old_save;	998	return old_save;
926	}	999	}
927		1000
928	/ Coro ******************************************************************/	1001	/ Coro ******************************************************************/
929		1002
930	#define PRIO_MAX 3
931	#define PRIO_HIGH 1
932	#define PRIO_NORMAL 0
933	#define PRIO_LOW -1
934	#define PRIO_IDLE -3
935	#define PRIO_MIN -4
936
937	/* for Coro.pm */
938	static SV *coro_current;
939	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
940	static int coro_nready;
941
942	static void	1003	static void
943	coro_enq (SV *coro_sv)	1004	coro_enq (pTHX_ SV *coro_sv)
944	{	1005	{
945	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1006	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
946	coro_nready++;
947	}	1007	}
948		1008
949	static SV *	1009	static SV *
950	coro_deq (int min_prio)	1010	coro_deq (pTHX_ int min_prio)
951	{	1011	{
952	int prio = PRIO_MAX - PRIO_MIN;	1012	int prio = PRIO_MAX - PRIO_MIN;
953		1013
954	min_prio -= PRIO_MIN;	1014	min_prio -= PRIO_MIN;
955	if (min_prio < 0)	1015	if (min_prio < 0)
956	min_prio = 0;	1016	min_prio = 0;
957		1017
958	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1018	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
959	if (AvFILLp (coro_ready [prio]) >= 0)	1019	if (AvFILLp (coro_ready [prio]) >= 0)
960	{
961	coro_nready--;
962	return av_shift (coro_ready [prio]);	1020	return av_shift (coro_ready [prio]);
963	}
964		1021
965	return 0;	1022	return 0;
966	}	1023	}
967		1024
968	static int	1025	static int
969	api_ready (SV *coro_sv)	1026	api_ready (SV *coro_sv)
970	{	1027	{
		1028	dTHX;
971	struct coro *coro;	1029	struct coro *coro;
972		1030
973	if (SvROK (coro_sv))	1031	if (SvROK (coro_sv))
974	coro_sv = SvRV (coro_sv);	1032	coro_sv = SvRV (coro_sv);
975		1033
…		…
979	return 0;	1037	return 0;
980		1038
981	coro->flags \|= CF_READY;	1039	coro->flags \|= CF_READY;
982		1040
983	LOCK;	1041	LOCK;
984	coro_enq (SvREFCNT_inc (coro_sv));	1042	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
		1043	++coro_nready;
985	UNLOCK;	1044	UNLOCK;
986		1045
987	return 1;	1046	return 1;
988	}	1047	}
989		1048
990	static int	1049	static int
991	api_is_ready (SV *coro_sv)	1050	api_is_ready (SV *coro_sv)
992	{	1051	{
		1052	dTHX;
993	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1053	return !!(SvSTATE (coro_sv)->flags & CF_READY);
994	}	1054	}
995		1055
996	static void	1056	static void
997	prepare_schedule (struct transfer_args *ta)	1057	prepare_schedule (pTHX_ struct transfer_args *ta)
998	{	1058	{
999	SV prev_sv, next_sv;	1059	SV prev_sv, next_sv;
1000		1060
1001	for (;;)	1061	for (;;)
1002	{	1062	{
1003	LOCK;	1063	LOCK;
1004	next_sv = coro_deq (PRIO_MIN);	1064	next_sv = coro_deq (aTHX_ PRIO_MIN);
1005	UNLOCK;
1006		1065
1007	/* nothing to schedule: call the idle handler */	1066	/* nothing to schedule: call the idle handler */
1008	if (!next_sv)	1067	if (!next_sv)
1009	{	1068	{
1010	dSP;	1069	dSP;
		1070	UNLOCK;
1011		1071
1012	ENTER;	1072	ENTER;
1013	SAVETMPS;	1073	SAVETMPS;
1014		1074
1015	PUSHMARK (SP);	1075	PUSHMARK (SP);
…		…
1024	ta->next = SvSTATE (next_sv);	1084	ta->next = SvSTATE (next_sv);
1025		1085
1026	/* cannot transfer to destroyed coros, skip and look for next */	1086	/* cannot transfer to destroyed coros, skip and look for next */
1027	if (ta->next->flags & CF_DESTROYED)	1087	if (ta->next->flags & CF_DESTROYED)
1028	{	1088	{
		1089	UNLOCK;
1029	SvREFCNT_dec (next_sv);	1090	SvREFCNT_dec (next_sv);
		1091	/* coro_nready is already taken care of by destroy */
1030	continue;	1092	continue;
1031	}	1093	}
1032		1094
		1095	--coro_nready;
		1096	UNLOCK;
1033	break;	1097	break;
1034	}	1098	}
1035		1099
1036	/* free this only after the transfer */	1100	/* free this only after the transfer */
1037	prev_sv = SvRV (coro_current);	1101	prev_sv = SvRV (coro_current);
…		…
1040		1104
1041	assert (ta->next->flags & CF_READY);	1105	assert (ta->next->flags & CF_READY);
1042	ta->next->flags &= ~CF_READY;	1106	ta->next->flags &= ~CF_READY;
1043		1107
1044	LOCK;	1108	LOCK;
1045	free_coro_mortal ();	1109	free_coro_mortal (aTHX);
1046	coro_mortal = prev_sv;	1110	coro_mortal = prev_sv;
1047	UNLOCK;	1111	UNLOCK;
1048	}	1112	}
1049		1113
1050	static void	1114	static void
1051	prepare_cede (struct transfer_args *ta)	1115	prepare_cede (pTHX_ struct transfer_args *ta)
1052	{	1116	{
1053	api_ready (coro_current);	1117	api_ready (coro_current);
1054	prepare_schedule (ta);	1118	prepare_schedule (aTHX_ ta);
1055	}	1119	}
1056		1120
1057	static int	1121	static int
1058	prepare_cede_notself (struct transfer_args *ta)	1122	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1059	{	1123	{
1060	if (coro_nready)	1124	if (coro_nready)
1061	{	1125	{
1062	SV *prev = SvRV (coro_current);	1126	SV *prev = SvRV (coro_current);
1063	prepare_schedule (ta);	1127	prepare_schedule (aTHX_ ta);
1064	api_ready (prev);	1128	api_ready (prev);
1065	return 1;	1129	return 1;
1066	}	1130	}
1067	else	1131	else
1068	return 0;	1132	return 0;
1069	}	1133	}
1070		1134
1071	static void	1135	static void
1072	api_schedule (void)	1136	api_schedule (void)
1073	{	1137	{
		1138	dTHX;
1074	struct transfer_args ta;	1139	struct transfer_args ta;
1075		1140
1076	prepare_schedule (&ta);	1141	prepare_schedule (aTHX_ &ta);
1077	TRANSFER (ta);	1142	TRANSFER (ta);
1078	}	1143	}
1079		1144
1080	static int	1145	static int
1081	api_cede (void)	1146	api_cede (void)
1082	{	1147	{
		1148	dTHX;
1083	struct transfer_args ta;	1149	struct transfer_args ta;
1084		1150
1085	prepare_cede (&ta);	1151	prepare_cede (aTHX_ &ta);
1086		1152
1087	if (ta.prev != ta.next)	1153	if (ta.prev != ta.next)
1088	{	1154	{
1089	TRANSFER (ta);	1155	TRANSFER (ta);
1090	return 1;	1156	return 1;
…		…
1094	}	1160	}
1095		1161
1096	static int	1162	static int
1097	api_cede_notself (void)	1163	api_cede_notself (void)
1098	{	1164	{
		1165	dTHX;
1099	struct transfer_args ta;	1166	struct transfer_args ta;
1100		1167
1101	if (prepare_cede_notself (&ta))	1168	if (prepare_cede_notself (aTHX_ &ta))
1102	{	1169	{
1103	TRANSFER (ta);	1170	TRANSFER (ta);
1104	return 1;	1171	return 1;
1105	}	1172	}
1106	else	1173	else
…		…
1122		1189
1123	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1190	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1124	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1191	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1125	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));	1192	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1126	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));	1193	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1194	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
		1195	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1127	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1196	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1128		1197
1129	main_mainstack = PL_mainstack;	1198	main_mainstack = PL_mainstack;
		1199	main_top_env = PL_top_env;
		1200
		1201	while (main_top_env->je_prev)
		1202	main_top_env = main_top_env->je_prev;
1130		1203
1131	coroapi.ver = CORO_API_VERSION;	1204	coroapi.ver = CORO_API_VERSION;
1132	coroapi.transfer = api_transfer;	1205	coroapi.transfer = api_transfer;
1133		1206
1134	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1207	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1142	HV *hv;	1215	HV *hv;
1143	int i;	1216	int i;
1144		1217
1145	Newz (0, coro, 1, struct coro);	1218	Newz (0, coro, 1, struct coro);
1146	coro->args = newAV ();	1219	coro->args = newAV ();
1147	coro->save = CORO_SAVE_ALL;	1220	coro->save = CORO_SAVE_DEF;
1148	coro->flags = CF_NEW;	1221	coro->flags = CF_NEW;
1149		1222
		1223	if (first) first->prev = coro;
		1224	coro->next = first;
		1225	first = coro;
		1226
1150	hv = newHV ();	1227	coro->hv = hv = newHV ();
1151	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1228	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1152	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1229	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1153		1230
1154	for (i = 1; i < items; i++)	1231	for (i = 1; i < items; i++)
1155	av_push (coro->args, newSVsv (ST (i)));	1232	av_push (coro->args, newSVsv (ST (i)));
…		…
1159		1236
1160	int	1237	int
1161	save (SV *coro, int new_save = -1)	1238	save (SV *coro, int new_save = -1)
1162	CODE:	1239	CODE:
1163	RETVAL = api_save (coro, new_save);	1240	RETVAL = api_save (coro, new_save);
		1241	OUTPUT:
		1242	RETVAL
		1243
		1244	int
		1245	save_also (SV *coro_sv, int save_also)
		1246	CODE:
		1247	{
		1248	struct coro *coro = SvSTATE (coro_sv);
		1249	RETVAL = coro->save;
		1250	coro->save \|= save_also;
		1251	}
1164	OUTPUT:	1252	OUTPUT:
1165	RETVAL	1253	RETVAL
1166		1254
1167	void	1255	void
1168	_set_stacklevel (...)	1256	_set_stacklevel (...)
…		…
1184		1272
1185	case 1:	1273	case 1:
1186	if (items != 2)	1274	if (items != 2)
1187	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1275	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1188		1276
1189	prepare_transfer (&ta, ST (0), ST (1));	1277	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1190	break;	1278	break;
1191		1279
1192	case 2:	1280	case 2:
1193	prepare_schedule (&ta);	1281	prepare_schedule (aTHX_ &ta);
1194	break;	1282	break;
1195		1283
1196	case 3:	1284	case 3:
1197	prepare_cede (&ta);	1285	prepare_cede (aTHX_ &ta);
1198	break;	1286	break;
1199		1287
1200	case 4:	1288	case 4:
1201	if (!prepare_cede_notself (&ta))	1289	if (!prepare_cede_notself (aTHX_ &ta))
1202	XSRETURN_EMPTY;	1290	XSRETURN_EMPTY;
1203		1291
1204	break;	1292	break;
1205	}	1293	}
1206		1294
…		…
1212	}	1300	}
1213		1301
1214	bool	1302	bool
1215	_destroy (SV *coro_sv)	1303	_destroy (SV *coro_sv)
1216	CODE:	1304	CODE:
1217	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1305	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1218	OUTPUT:	1306	OUTPUT:
1219	RETVAL	1307	RETVAL
1220		1308
1221	void	1309	void
1222	_exit (code)	1310	_exit (code)
…		…
1224	PROTOTYPE: $	1312	PROTOTYPE: $
1225	CODE:	1313	CODE:
1226	_exit (code);	1314	_exit (code);
1227		1315
1228	int	1316	int
		1317	cctx_stacksize (int new_stacksize = 0)
		1318	CODE:
		1319	RETVAL = coro_stacksize;
		1320	if (new_stacksize)
		1321	coro_stacksize = new_stacksize;
		1322	OUTPUT:
		1323	RETVAL
		1324
		1325	int
1229	cctx_count ()	1326	cctx_count ()
1230	CODE:	1327	CODE:
1231	RETVAL = cctx_count;	1328	RETVAL = cctx_count;
1232	OUTPUT:	1329	OUTPUT:
1233	RETVAL	1330	RETVAL
…		…
1236	cctx_idle ()	1333	cctx_idle ()
1237	CODE:	1334	CODE:
1238	RETVAL = cctx_idle;	1335	RETVAL = cctx_idle;
1239	OUTPUT:	1336	OUTPUT:
1240	RETVAL	1337	RETVAL
		1338
		1339	void
		1340	list ()
		1341	PPCODE:
		1342	{
		1343	struct coro *coro;
		1344	for (coro = first; coro; coro = coro->next)
		1345	if (coro->hv)
		1346	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1347	}
		1348
		1349	void
		1350	_eval (SV coro_sv, SV coderef)
		1351	CODE:
		1352	{
		1353	struct coro *coro = SvSTATE (coro_sv);
		1354	if (coro->mainstack)
		1355	{
		1356	struct coro temp;
		1357	Zero (&temp, 1, struct coro);
		1358	temp.save = CORO_SAVE_ALL;
		1359
		1360	if (!(coro->flags & CF_RUNNING))
		1361	{
		1362	save_perl (aTHX_ &temp);
		1363	load_perl (aTHX_ coro);
		1364	}
		1365
		1366	{
		1367	dSP;
		1368	ENTER;
		1369	SAVETMPS;
		1370	PUSHMARK (SP);
		1371	PUTBACK;
		1372	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1373	SPAGAIN;
		1374	FREETMPS;
		1375	LEAVE;
		1376	PUTBACK;
		1377	}
		1378
		1379	if (!(coro->flags & CF_RUNNING))
		1380	{
		1381	save_perl (aTHX_ coro);
		1382	load_perl (aTHX_ &temp);
		1383	}
		1384	}
		1385	}
		1386
		1387	SV *
		1388	is_ready (SV *coro_sv)
		1389	PROTOTYPE: $
		1390	ALIAS:
		1391	is_ready = CF_READY
		1392	is_running = CF_RUNNING
		1393	is_new = CF_NEW
		1394	is_destroyed = CF_DESTROYED
		1395	CODE:
		1396	struct coro *coro = SvSTATE (coro_sv);
		1397	RETVAL = boolSV (coro->flags & ix);
		1398	OUTPUT:
		1399	RETVAL
		1400
1241		1401
1242	MODULE = Coro::State PACKAGE = Coro	1402	MODULE = Coro::State PACKAGE = Coro
1243		1403
1244	BOOT:	1404	BOOT:
1245	{	1405	{
…		…
1313	CODE:	1473	CODE:
1314	RETVAL = boolSV (api_ready (self));	1474	RETVAL = boolSV (api_ready (self));
1315	OUTPUT:	1475	OUTPUT:
1316	RETVAL	1476	RETVAL
1317		1477
1318	SV *
1319	is_ready (SV *self)
1320	PROTOTYPE: $
1321	CODE:
1322	RETVAL = boolSV (api_is_ready (self));
1323	OUTPUT:
1324	RETVAL
1325
1326	int	1478	int
1327	nready (...)	1479	nready (...)
1328	PROTOTYPE:	1480	PROTOTYPE:
1329	CODE:	1481	CODE:
1330	RETVAL = coro_nready;	1482	RETVAL = coro_nready;

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Comparing Coro/Coro/State.xs (file contents): Revision 1.135 by root, Fri Jan 5 18:25:51 2007 UTC vs. Revision 1.151 by root, Wed Sep 19 21:39:15 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.135 by root, Fri Jan 5 18:25:51 2007 UTC vs.
Revision 1.151 by root, Wed Sep 19 21:39:15 2007 UTC