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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.131 by root, Fri Dec 29 11:37:49 2006 UTC vs.
Revision 1.148 by root, Fri Apr 13 12:56:55 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 */
		151	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
143	JMPENV *top_env;	152	JMPENV *top_env;
144	coro_context cctx;	153	coro_context cctx;
145		154
146	int inuse;
147
148	#if USE_VALGRIND	155	#if CORO_USE_VALGRIND
149	int valgrind_id;	156	int valgrind_id;
150	#endif	157	#endif
		158	char inuse, mapped;
151	} coro_cctx;	159	} coro_cctx;
152		160
153	enum {	161	enum {
154	CF_RUNNING = 0x0001, /* coroutine is running */	162	CF_RUNNING = 0x0001, /* coroutine is running */
155	CF_READY = 0x0002, /* coroutine is ready */	163	CF_READY = 0x0002, /* coroutine is ready */
156	CF_NEW = 0x0004, /* ahs never been switched to */	164	CF_NEW = 0x0004, /* has never been switched to */
		165	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
157	};	166	};
158		167
159	/* this is a structure representing a perl-level coroutine */	168	/* this is a structure representing a perl-level coroutine */
160	struct coro {	169	struct coro {
161	/* the c coroutine allocated to this perl coroutine, if any */	170	/* the c coroutine allocated to this perl coroutine, if any */
…		…
169		178
170	/* optionally saved, might be zero */	179	/* optionally saved, might be zero */
171	AV defav; / @_ */	180	AV defav; / @_ */
172	SV defsv; / $_ */	181	SV defsv; / $_ */
173	SV errsv; / $@ */	182	SV errsv; / $@ */
		183	GV deffh; / default filehandle */
174	SV irssv; / $/ */	184	SV irssv; / $/ */
175	SV irssv_sv; / real $/ cache */	185	SV irssv_sv; / real $/ cache */
176		186
177	#define VAR(name,type) type name;	187	#define VAR(name,type) type name;
178	# include "state.h"	188	# include "state.h"
…		…
183	};	193	};
184		194
185	typedef struct coro *Coro__State;	195	typedef struct coro *Coro__State;
186	typedef struct coro *Coro__State_or_hashref;	196	typedef struct coro *Coro__State_or_hashref;
187		197
		198	/ Coro ******************************************************************/
		199
		200	#define PRIO_MAX 3
		201	#define PRIO_HIGH 1
		202	#define PRIO_NORMAL 0
		203	#define PRIO_LOW -1
		204	#define PRIO_IDLE -3
		205	#define PRIO_MIN -4
		206
		207	/* for Coro.pm */
		208	static SV *coro_current;
		209	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
		210	static int coro_nready;
		211
		212	/ lowlevel stuff ********************************************************/
		213
188	static AV *	214	static AV *
189	coro_clone_padlist (CV *cv)	215	coro_clone_padlist (pTHX_ CV *cv)
190	{	216	{
191	AV *padlist = CvPADLIST (cv);	217	AV *padlist = CvPADLIST (cv);
192	AV newpadlist, newpad;	218	AV newpadlist, newpad;
193		219
194	newpadlist = newAV ();	220	newpadlist = newAV ();
…		…
206		232
207	return newpadlist;	233	return newpadlist;
208	}	234	}
209		235
210	static void	236	static void
211	free_padlist (AV *padlist)	237	free_padlist (pTHX_ AV *padlist)
212	{	238	{
213	/* may be during global destruction */	239	/* may be during global destruction */
214	if (SvREFCNT (padlist))	240	if (SvREFCNT (padlist))
215	{	241	{
216	I32 i = AvFILLp (padlist);	242	I32 i = AvFILLp (padlist);
…		…
237	AV *padlist;	263	AV *padlist;
238	AV av = (AV )mg->mg_obj;	264	AV av = (AV )mg->mg_obj;
239		265
240	/* casting is fun. */	266	/* casting is fun. */
241	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	267	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
242	free_padlist (padlist);	268	free_padlist (aTHX_ padlist);
243		269
244	SvREFCNT_dec (av);	270	SvREFCNT_dec (av);
245		271
246	return 0;	272	return 0;
247	}	273	}
…		…
257	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	283	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
258	: 0	284	: 0
259		285
260	/* the next two functions merely cache the padlists */	286	/* the next two functions merely cache the padlists */
261	static void	287	static void
262	get_padlist (CV *cv)	288	get_padlist (pTHX_ CV *cv)
263	{	289	{
264	MAGIC *mg = CORO_MAGIC (cv);	290	MAGIC *mg = CORO_MAGIC (cv);
265	AV *av;	291	AV *av;
266		292
267	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	293	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
268	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	294	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
269	else	295	else
270	{	296	{
271	#if PREFER_PERL_FUNCTIONS	297	#if CORO_PREFER_PERL_FUNCTIONS
272	/* this is probably cleaner, but also slower? */	298	/* this is probably cleaner, but also slower? */
273	CV *cp = Perl_cv_clone (cv);	299	CV *cp = Perl_cv_clone (cv);
274	CvPADLIST (cv) = CvPADLIST (cp);	300	CvPADLIST (cv) = CvPADLIST (cp);
275	CvPADLIST (cp) = 0;	301	CvPADLIST (cp) = 0;
276	SvREFCNT_dec (cp);	302	SvREFCNT_dec (cp);
277	#else	303	#else
278	CvPADLIST (cv) = coro_clone_padlist (cv);	304	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
279	#endif	305	#endif
280	}	306	}
281	}	307	}
282		308
283	static void	309	static void
284	put_padlist (CV *cv)	310	put_padlist (pTHX_ CV *cv)
285	{	311	{
286	MAGIC *mg = CORO_MAGIC (cv);	312	MAGIC *mg = CORO_MAGIC (cv);
287	AV *av;	313	AV *av;
288		314
289	if (!mg)	315	if (!mg)
…		…
300	av_extend (av, AvMAX (av) + 1);	326	av_extend (av, AvMAX (av) + 1);
301		327
302	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	328	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
303	}	329	}
304		330
		331	/ load & save, init *****************************************************/
		332
305	#define SB do {	333	#define SB do {
306	#define SE } while (0)	334	#define SE } while (0)
307		335
308	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	336	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
309		337
310	static void	338	static void
311	load_perl (Coro__State c)	339	load_perl (pTHX_ Coro__State c)
312	{	340	{
313	#define VAR(name,type) PL_ ## name = c->name;	341	#define VAR(name,type) PL_ ## name = c->name;
314	# include "state.h"	342	# include "state.h"
315	#undef VAR	343	#undef VAR
316		344
317	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	345	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
318	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	346	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
319	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	347	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		348	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
		349
320	if (c->irssv)	350	if (c->irssv)
321	{	351	{
322	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))	352	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		353	{
323	SvREFCNT_dec (c->irssv);	354	SvREFCNT_dec (c->irssv);
		355	c->irssv = 0;
		356	}
324	else	357	else
325	{	358	{
326	REPLACE_SV (PL_rs, c->irssv);	359	REPLACE_SV (PL_rs, c->irssv);
327	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);	360	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
328	sv_setsv (c->irssv_sv, PL_rs);	361	sv_setsv (c->irssv_sv, PL_rs);
…		…
334	CV *cv;	367	CV *cv;
335		368
336	/* now do the ugly restore mess */	369	/* now do the ugly restore mess */
337	while ((cv = (CV *)POPs))	370	while ((cv = (CV *)POPs))
338	{	371	{
339	put_padlist (cv); /* mark this padlist as available */	372	put_padlist (aTHX_ cv); /* mark this padlist as available */
340	CvDEPTH (cv) = PTR2IV (POPs);	373	CvDEPTH (cv) = PTR2IV (POPs);
341	CvPADLIST (cv) = (AV *)POPs;	374	CvPADLIST (cv) = (AV *)POPs;
342	}	375	}
343		376
344	PUTBACK;	377	PUTBACK;
345	}	378	}
		379	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
346	}	380	}
347		381
348	static void	382	static void
349	save_perl (Coro__State c)	383	save_perl (pTHX_ Coro__State c)
350	{	384	{
		385	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
351	{	386	{
352	dSP;	387	dSP;
353	I32 cxix = cxstack_ix;	388	I32 cxix = cxstack_ix;
354	PERL_CONTEXT *ccstk = cxstack;	389	PERL_CONTEXT *ccstk = cxstack;
355	PERL_SI *top_si = PL_curstackinfo;	390	PERL_SI *top_si = PL_curstackinfo;
…		…
378	PUSHs ((SV *)CvPADLIST (cv));	413	PUSHs ((SV *)CvPADLIST (cv));
379	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	414	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
380	PUSHs ((SV *)cv);	415	PUSHs ((SV *)cv);
381		416
382	CvDEPTH (cv) = 0;	417	CvDEPTH (cv) = 0;
383	get_padlist (cv);	418	get_padlist (aTHX_ cv);
384	}	419	}
385	}	420	}
386	}	421	}
387		422
388	if (top_si->si_type == PERLSI_MAIN)	423	if (top_si->si_type == PERLSI_MAIN)
…		…
397	}	432	}
398		433
399	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	434	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
400	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	435	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
401	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	436	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		437	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;
402	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	438	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
403		439
404	#define VAR(name,type)c->name = PL_ ## name;	440	#define VAR(name,type)c->name = PL_ ## name;
405	# include "state.h"	441	# include "state.h"
406	#undef VAR	442	#undef VAR
…		…
410	* allocate various perl stacks. This is an exact copy	446	* allocate various perl stacks. This is an exact copy
411	* of perl.c:init_stacks, except that it uses less memory	447	* of perl.c:init_stacks, except that it uses less memory
412	* on the (sometimes correct) assumption that coroutines do	448	* on the (sometimes correct) assumption that coroutines do
413	* not usually need a lot of stackspace.	449	* not usually need a lot of stackspace.
414	*/	450	*/
415	#if PREFER_PERL_FUNCTIONS	451	#if CORO_PREFER_PERL_FUNCTIONS
416	# define coro_init_stacks init_stacks	452	# define coro_init_stacks init_stacks
417	#else	453	#else
418	static void	454	static void
419	coro_init_stacks ()	455	coro_init_stacks (pTHX)
420	{	456	{
421	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	457	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
422	PL_curstackinfo->si_type = PERLSI_MAIN;	458	PL_curstackinfo->si_type = PERLSI_MAIN;
423	PL_curstack = PL_curstackinfo->si_stack;	459	PL_curstack = PL_curstackinfo->si_stack;
424	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	460	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
…		…
458		494
459	/*	495	/*
460	* destroy the stacks, the callchain etc...	496	* destroy the stacks, the callchain etc...
461	*/	497	*/
462	static void	498	static void
463	coro_destroy_stacks ()	499	coro_destroy_stacks (pTHX)
464	{	500	{
465	if (!IN_DESTRUCT)	501	if (!IN_DESTRUCT)
466	{	502	{
467	/* restore all saved variables and stuff */	503	/* restore all saved variables and stuff */
468	LEAVE_SCOPE (0);	504	LEAVE_SCOPE (0);
…		…
470		506
471	/* free all temporaries */	507	/* free all temporaries */
472	FREETMPS;	508	FREETMPS;
473	assert (PL_tmps_ix == -1);	509	assert (PL_tmps_ix == -1);
474		510
		511	/* unwind all extra stacks */
475	POPSTACK_TO (PL_mainstack);	512	POPSTACK_TO (PL_mainstack);
		513
		514	/* unwind main stack */
		515	dounwind (-1);
476	}	516	}
477		517
478	while (PL_curstackinfo->si_next)	518	while (PL_curstackinfo->si_next)
479	PL_curstackinfo = PL_curstackinfo->si_next;	519	PL_curstackinfo = PL_curstackinfo->si_next;
480		520
…		…
497	#if !PERL_VERSION_ATLEAST (5,9,0)	537	#if !PERL_VERSION_ATLEAST (5,9,0)
498	Safefree (PL_retstack);	538	Safefree (PL_retstack);
499	#endif	539	#endif
500	}	540	}
501		541
		542	/ coroutine stack handling **********************************************/
		543
502	static void	544	static void
503	setup_coro (struct coro *coro)	545	setup_coro (pTHX_ struct coro *coro)
504	{	546	{
505	/*	547	/*
506	* emulate part of the perl startup here.	548	* emulate part of the perl startup here.
507	*/	549	*/
508
509	coro_init_stacks ();	550	coro_init_stacks (aTHX);
510		551
511	PL_curcop = &PL_compiling;	552	PL_curcop = &PL_compiling;
512	PL_in_eval = EVAL_NULL;	553	PL_in_eval = EVAL_NULL;
		554	PL_comppad = 0;
513	PL_curpm = 0;	555	PL_curpm = 0;
514	PL_localizing = 0;	556	PL_localizing = 0;
515	PL_dirty = 0;	557	PL_dirty = 0;
516	PL_restartop = 0;	558	PL_restartop = 0;
517		559
…		…
536		578
537	ENTER; /* necessary e.g. for dounwind */	579	ENTER; /* necessary e.g. for dounwind */
538	}	580	}
539		581
540	static void	582	static void
541	free_coro_mortal ()	583	free_coro_mortal (pTHX)
542	{	584	{
543	if (coro_mortal)	585	if (coro_mortal)
544	{	586	{
545	SvREFCNT_dec (coro_mortal);	587	SvREFCNT_dec (coro_mortal);
546	coro_mortal = 0;	588	coro_mortal = 0;
547	}	589	}
548	}	590	}
549		591
550	/* inject a fake call to Coro::State::_cctx_init into the execution */	592	/* inject a fake call to Coro::State::_cctx_init into the execution */
		593	/* _cctx_init shoukld be careful, as it could be called at almost any time */
		594	/* during execution of a pelr program */
551	static void NOINLINE	595	static void NOINLINE
552	prepare_cctx (coro_cctx *cctx)	596	prepare_cctx (pTHX_ coro_cctx *cctx)
553	{	597	{
554	dSP;	598	dSP;
555	LOGOP myop;	599	LOGOP myop;
556		600
557	Zero (&myop, 1, LOGOP);	601	Zero (&myop, 1, LOGOP);
…		…
566	PL_op = (OP *)&myop;	610	PL_op = (OP *)&myop;
567	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	611	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
568	SPAGAIN;	612	SPAGAIN;
569	}	613	}
570		614
		615	/*
		616	* this is a _very_ stripped down perl interpreter ;)
		617	*/
571	static void	618	static void
572	coro_run (void *arg)	619	coro_run (void *arg)
573	{	620	{
		621	dTHX;
		622
574	/* coro_run is the alternative tail of transfer(), so unlock here. */	623	/* coro_run is the alternative tail of transfer(), so unlock here. */
575	UNLOCK;	624	UNLOCK;
576		625
577	/*
578	* this is a _very_ stripped down perl interpreter ;)
579	*/
580	PL_top_env = &PL_start_env;	626	PL_top_env = &PL_start_env;
581		627
582	/* inject call to cctx_init */	628	/* inject a fake subroutine call to cctx_init */
583	prepare_cctx ((coro_cctx *)arg);	629	prepare_cctx (aTHX_ (coro_cctx *)arg);
584		630
585	/* somebody will hit me for both perl_run and PL_restartop */	631	/* somebody or something will hit me for both perl_run and PL_restartop */
586	PL_restartop = PL_op;	632	PL_restartop = PL_op;
587	perl_run (PL_curinterp);	633	perl_run (PL_curinterp);
588		634
589	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	635	/* If perl-run returns we assume exit() was being called, which */
590	abort ();	636	/* seems to be the only valid (non-bug) reason for perl_run to return. */
		637	/* We try to exit by jumping to the bootstrap-time "top" top_env, as */
		638	/* we cannot restore the "main" coroutine as Coro has no such concept */
		639	PL_top_env = main_top_env;
		640	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
591	}	641	}
592		642
593	static coro_cctx *	643	static coro_cctx *
594	cctx_new ()	644	cctx_new ()
595	{	645	{
596	coro_cctx *cctx;	646	coro_cctx *cctx;
		647	void *stack_start;
		648	size_t stack_size;
597		649
598	++cctx_count;	650	++cctx_count;
599		651
600	Newz (0, cctx, 1, coro_cctx);	652	Newz (0, cctx, 1, coro_cctx);
601		653
602	#if HAVE_MMAP	654	#if HAVE_MMAP
603		655
604	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	656	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
605	/* mmap supposedly does allocate-on-write for us */	657	/* mmap supposedly does allocate-on-write for us */
606	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	658	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
607		659
608	if (cctx->sptr == (void *)-1)	660	if (cctx->sptr != (void *)-1)
609	{
610	perror ("FATAL: unable to mmap stack for coroutine");
611	_exit (EXIT_FAILURE);
612	}	661	{
613
614	# if STACKGUARD	662	# if CORO_STACKGUARD
615	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	663	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
616	# endif	664	# endif
		665	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		666	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		667	cctx->mapped = 1;
		668	}
		669	else
		670	#endif
		671	{
		672	cctx->ssize = coro_stacksize * (long)sizeof (long);
		673	New (0, cctx->sptr, coro_stacksize, long);
617		674
618	#else
619
620	cctx->ssize = STACKSIZE * (long)sizeof (long);
621	New (0, cctx->sptr, STACKSIZE, long);
622
623	if (!cctx->sptr)	675	if (!cctx->sptr)
624	{	676	{
625	perror ("FATAL: unable to malloc stack for coroutine");	677	perror ("FATAL: unable to allocate stack for coroutine");
626	_exit (EXIT_FAILURE);	678	_exit (EXIT_FAILURE);
627	}	679	}
628		680
629	#endif	681	stack_start = cctx->sptr;
		682	stack_size = cctx->ssize;
		683	}
630		684
631	#if USE_VALGRIND	685	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
632	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
633	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
634	cctx->ssize + (char *)cctx->sptr
635	);
636	#endif
637
638	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	686	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
639		687
640	return cctx;	688	return cctx;
641	}	689	}
642		690
643	static void	691	static void
…		…
646	if (!cctx)	694	if (!cctx)
647	return;	695	return;
648		696
649	--cctx_count;	697	--cctx_count;
650		698
651	#if USE_VALGRIND	699	#if CORO_USE_VALGRIND
652	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	700	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
653	#endif	701	#endif
654		702
655	#if HAVE_MMAP	703	#if HAVE_MMAP
		704	if (cctx->mapped)
656	munmap (cctx->sptr, cctx->ssize);	705	munmap (cctx->sptr, cctx->ssize);
657	#else	706	else
		707	#endif
658	Safefree (cctx->sptr);	708	Safefree (cctx->sptr);
659	#endif
660		709
661	Safefree (cctx);	710	Safefree (cctx);
662	}	711	}
663		712
664	static coro_cctx *	713	static coro_cctx *
665	cctx_get ()	714	cctx_get (pTHX)
666	{	715	{
667	coro_cctx *cctx;
668
669	if (cctx_first)	716	while (cctx_first)
670	{	717	{
671	cctx = cctx_first;	718	coro_cctx *cctx = cctx_first;
672	cctx_first = cctx->next;	719	cctx_first = cctx->next;
673	--cctx_idle;	720	--cctx_idle;
		721
		722	if (cctx->ssize >= coro_stacksize)
		723	return cctx;
		724
		725	cctx_destroy (cctx);
674	}	726	}
675	else	727
676	{
677	cctx = cctx_new ();
678	PL_op = PL_op->op_next;	728	PL_op = PL_op->op_next;
679	}
680
681	return cctx;	729	return cctx_new ();
682	}	730	}
683		731
684	static void	732	static void
685	cctx_put (coro_cctx *cctx)	733	cctx_put (coro_cctx *cctx)
686	{	734	{
…		…
698	++cctx_idle;	746	++cctx_idle;
699	cctx->next = cctx_first;	747	cctx->next = cctx_first;
700	cctx_first = cctx;	748	cctx_first = cctx;
701	}	749	}
702		750
		751	/ coroutine switching ***************************************************/
		752
703	/* never call directly, always through the coro_state_transfer global variable */	753	/* never call directly, always through the coro_state_transfer global variable */
704	static void NOINLINE	754	static void NOINLINE
705	transfer (struct coro prev, struct coro next)	755	transfer (pTHX_ struct coro prev, struct coro next)
706	{	756	{
707	dSTACKLEVEL;	757	dSTACKLEVEL;
708		758
709	/* sometimes transfer is only called to set idle_sp */	759	/* sometimes transfer is only called to set idle_sp */
710	if (!next)	760	if (!next)
711	{	761	{
712	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	762	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
713	assert (((coro_cctx )prev)->top_env = PL_top_env); / just for the side effetc when assert is enabled */	763	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
714	}	764	}
715	else if (prev != next)	765	else if (prev != next)
716	{	766	{
717	coro_cctx *prev__cctx;	767	coro_cctx *prev__cctx;
718		768
…		…
730	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");	780	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
731		781
732	if (next->flags & CF_RUNNING)	782	if (next->flags & CF_RUNNING)
733	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	783	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
734		784
		785	if (next->flags & CF_DESTROYED)
		786	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		787
735	prev->flags &= ~CF_RUNNING;	788	prev->flags &= ~CF_RUNNING;
736	next->flags \|= CF_RUNNING;	789	next->flags \|= CF_RUNNING;
737		790
738	LOCK;	791	LOCK;
739		792
740	if (next->flags & CF_NEW)	793	if (next->flags & CF_NEW)
741	{	794	{
742	/* need to start coroutine */	795	/* need to start coroutine */
743	next->flags &= ~CF_NEW;	796	next->flags &= ~CF_NEW;
744	/* first get rid of the old state */	797	/* first get rid of the old state */
745	save_perl (prev);	798	save_perl (aTHX_ prev);
746	/* setup coroutine call */	799	/* setup coroutine call */
747	setup_coro (next);	800	setup_coro (aTHX_ next);
748	/* need a new stack */	801	/* need a new stack */
749	assert (!next->cctx);	802	assert (!next->cctx);
750	}	803	}
751	else	804	else
752	{	805	{
753	/* coroutine already started */	806	/* coroutine already started */
754	save_perl (prev);	807	save_perl (aTHX_ prev);
755	load_perl (next);	808	load_perl (aTHX_ next);
756	}	809	}
757		810
758	prev__cctx = prev->cctx;	811	prev__cctx = prev->cctx;
759		812
760	/* possibly "free" the cctx */	813	/* possibly "free" the cctx */
761	if (prev__cctx->idle_sp == STACKLEVEL)	814	if (prev__cctx->idle_sp == STACKLEVEL)
762	{	815	{
763	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	816	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
764	assert (PL_top_env == prev__cctx->top_env);	817	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
765		818
766	prev->cctx = 0;	819	prev->cctx = 0;
767		820
768	cctx_put (prev__cctx);	821	cctx_put (prev__cctx);
769	prev__cctx->inuse = 0;	822	prev__cctx->inuse = 0;
770	}	823	}
771		824
772	if (!next->cctx)	825	if (!next->cctx)
773	{	826	{
774	next->cctx = cctx_get ();	827	next->cctx = cctx_get (aTHX);
775	assert (!next->cctx->inuse);	828	assert (!next->cctx->inuse);
776	next->cctx->inuse = 1;	829	next->cctx->inuse = 1;
777	}	830	}
778		831
779	if (prev__cctx != next->cctx)	832	if (prev__cctx != next->cctx)
…		…
781	prev__cctx->top_env = PL_top_env;	834	prev__cctx->top_env = PL_top_env;
782	PL_top_env = next->cctx->top_env;	835	PL_top_env = next->cctx->top_env;
783	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	836	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
784	}	837	}
785		838
786	free_coro_mortal ();	839	free_coro_mortal (aTHX);
787
788	UNLOCK;	840	UNLOCK;
789	}	841	}
790	}	842	}
791		843
792	struct transfer_args	844	struct transfer_args
793	{	845	{
794	struct coro prev, next;	846	struct coro prev, next;
795	};	847	};
796		848
797	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	849	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
798		850
		851	/ high level stuff ******************************************************/
		852
799	static void	853	static int
800	coro_state_destroy (struct coro *coro)	854	coro_state_destroy (pTHX_ struct coro *coro)
801	{	855	{
802	if (coro->refcnt--)	856	if (coro->flags & CF_DESTROYED)
803	return;	857	return 0;
		858
		859	coro->flags \|= CF_DESTROYED;
		860
		861	if (coro->flags & CF_READY)
		862	{
		863	/* reduce nready, as destroying a ready coro effectively unreadies it */
		864	/* alternative: look through all ready queues and remove the coro */
		865	LOCK;
		866	--coro_nready;
		867	UNLOCK;
		868	}
		869	else
		870	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
804		871
805	if (coro->mainstack && coro->mainstack != main_mainstack)	872	if (coro->mainstack && coro->mainstack != main_mainstack)
806	{	873	{
807	struct coro temp;	874	struct coro temp;
		875
		876	assert (!(coro->flags & CF_RUNNING));
		877
808	Zero (&temp, 1, struct coro);	878	Zero (&temp, 1, struct coro);
809	temp.save = CORO_SAVE_ALL;	879	temp.save = CORO_SAVE_DEF;
810		880
811	if (coro->flags & CF_RUNNING)	881	if (coro->flags & CF_RUNNING)
812	croak ("FATAL: tried to destroy currently running coroutine");	882	croak ("FATAL: tried to destroy currently running coroutine");
813		883
814	save_perl (&temp);	884	save_perl (aTHX_ &temp);
815	load_perl (coro);	885	load_perl (aTHX_ coro);
816		886
817	coro_destroy_stacks ();	887	coro_destroy_stacks (aTHX);
818		888
819	load_perl (&temp); /* this will get rid of defsv etc.. */	889	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
820		890
821	coro->mainstack = 0;	891	coro->mainstack = 0;
822	}	892	}
823		893
824	cctx_destroy (coro->cctx);	894	cctx_destroy (coro->cctx);
825	SvREFCNT_dec (coro->args);	895	SvREFCNT_dec (coro->args);
826	Safefree (coro);	896
		897	return 1;
827	}	898	}
828		899
829	static int	900	static int
830	coro_state_clear (pTHX_ SV sv, MAGIC mg)	901	coro_state_free (pTHX_ SV sv, MAGIC mg)
831	{	902	{
832	struct coro coro = (struct coro )mg->mg_ptr;	903	struct coro coro = (struct coro )mg->mg_ptr;
833	mg->mg_ptr = 0;	904	mg->mg_ptr = 0;
834		905
		906	if (--coro->refcnt < 0)
		907	{
835	coro_state_destroy (coro);	908	coro_state_destroy (aTHX_ coro);
		909	Safefree (coro);
		910	}
836		911
837	return 0;	912	return 0;
838	}	913	}
839		914
840	static int	915	static int
…		…
847	return 0;	922	return 0;
848	}	923	}
849		924
850	static MGVTBL coro_state_vtbl = {	925	static MGVTBL coro_state_vtbl = {
851	0, 0, 0, 0,	926	0, 0, 0, 0,
852	coro_state_clear,	927	coro_state_free,
853	0,	928	0,
854	#ifdef MGf_DUP	929	#ifdef MGf_DUP
855	coro_state_dup,	930	coro_state_dup,
856	#else	931	#else
857	# define MGf_DUP 0	932	# define MGf_DUP 0
858	#endif	933	#endif
859	};	934	};
860		935
861	static struct coro *	936	static struct coro *
862	SvSTATE (SV *coro)	937	SvSTATE_ (pTHX_ SV *coro)
863	{	938	{
864	HV *stash;	939	HV *stash;
865	MAGIC *mg;	940	MAGIC *mg;
866		941
867	if (SvROK (coro))	942	if (SvROK (coro))
…		…
873	/* very slow, but rare, check */	948	/* very slow, but rare, check */
874	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	949	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
875	croak ("Coro::State object required");	950	croak ("Coro::State object required");
876	}	951	}
877		952
878	mg = SvMAGIC (coro);	953	mg = CORO_MAGIC (coro);
879	assert (mg->mg_type == PERL_MAGIC_ext);
880	return (struct coro *)mg->mg_ptr;	954	return (struct coro *)mg->mg_ptr;
881	}	955	}
882		956
		957	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		958
883	static void	959	static void
884	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	960	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
885	{	961	{
886	ta->prev = SvSTATE (prev_sv);	962	ta->prev = SvSTATE (prev_sv);
887	ta->next = SvSTATE (next_sv);	963	ta->next = SvSTATE (next_sv);
888	}	964	}
889		965
890	static void	966	static void
891	api_transfer (SV prev_sv, SV next_sv)	967	api_transfer (SV prev_sv, SV next_sv)
892	{	968	{
		969	dTHX;
893	struct transfer_args ta;	970	struct transfer_args ta;
894		971
895	prepare_transfer (&ta, prev_sv, next_sv);	972	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
896	TRANSFER (ta);	973	TRANSFER (ta);
897	}	974	}
898		975
899	static int	976	static int
900	api_save (SV *coro_sv, int new_save)	977	api_save (SV *coro_sv, int new_save)
901	{	978	{
		979	dTHX;
902	struct coro *coro = SvSTATE (coro_sv);	980	struct coro *coro = SvSTATE (coro_sv);
903	int old_save = coro->save;	981	int old_save = coro->save;
904		982
905	if (new_save >= 0)	983	if (new_save >= 0)
906	coro->save = new_save;	984	coro->save = new_save;
…		…
908	return old_save;	986	return old_save;
909	}	987	}
910		988
911	/ Coro ******************************************************************/	989	/ Coro ******************************************************************/
912		990
913	#define PRIO_MAX 3
914	#define PRIO_HIGH 1
915	#define PRIO_NORMAL 0
916	#define PRIO_LOW -1
917	#define PRIO_IDLE -3
918	#define PRIO_MIN -4
919
920	/* for Coro.pm */
921	static SV *coro_current;
922	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
923	static int coro_nready;
924
925	static void	991	static void
926	coro_enq (SV *coro_sv)	992	coro_enq (pTHX_ SV *coro_sv)
927	{	993	{
928	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	994	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
929	coro_nready++;
930	}	995	}
931		996
932	static SV *	997	static SV *
933	coro_deq (int min_prio)	998	coro_deq (pTHX_ int min_prio)
934	{	999	{
935	int prio = PRIO_MAX - PRIO_MIN;	1000	int prio = PRIO_MAX - PRIO_MIN;
936		1001
937	min_prio -= PRIO_MIN;	1002	min_prio -= PRIO_MIN;
938	if (min_prio < 0)	1003	if (min_prio < 0)
939	min_prio = 0;	1004	min_prio = 0;
940		1005
941	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1006	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
942	if (AvFILLp (coro_ready [prio]) >= 0)	1007	if (AvFILLp (coro_ready [prio]) >= 0)
943	{
944	coro_nready--;
945	return av_shift (coro_ready [prio]);	1008	return av_shift (coro_ready [prio]);
946	}
947		1009
948	return 0;	1010	return 0;
949	}	1011	}
950		1012
951	static int	1013	static int
952	api_ready (SV *coro_sv)	1014	api_ready (SV *coro_sv)
953	{	1015	{
		1016	dTHX;
954	struct coro *coro;	1017	struct coro *coro;
955		1018
956	if (SvROK (coro_sv))	1019	if (SvROK (coro_sv))
957	coro_sv = SvRV (coro_sv);	1020	coro_sv = SvRV (coro_sv);
958		1021
…		…
962	return 0;	1025	return 0;
963		1026
964	coro->flags \|= CF_READY;	1027	coro->flags \|= CF_READY;
965		1028
966	LOCK;	1029	LOCK;
967	coro_enq (SvREFCNT_inc (coro_sv));	1030	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
		1031	++coro_nready;
968	UNLOCK;	1032	UNLOCK;
969		1033
970	return 1;	1034	return 1;
971	}	1035	}
972		1036
973	static int	1037	static int
974	api_is_ready (SV *coro_sv)	1038	api_is_ready (SV *coro_sv)
975	{	1039	{
		1040	dTHX;
976	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1041	return !!(SvSTATE (coro_sv)->flags & CF_READY);
977	}	1042	}
978		1043
979	static void	1044	static void
980	prepare_schedule (struct transfer_args *ta)	1045	prepare_schedule (pTHX_ struct transfer_args *ta)
981	{	1046	{
982	SV prev, next;	1047	SV prev_sv, next_sv;
983		1048
984	for (;;)	1049	for (;;)
985	{	1050	{
986	LOCK;	1051	LOCK;
987	next = coro_deq (PRIO_MIN);	1052	next_sv = coro_deq (aTHX_ PRIO_MIN);
		1053
		1054	/* nothing to schedule: call the idle handler */
		1055	if (!next_sv)
		1056	{
		1057	dSP;
		1058	UNLOCK;
		1059
		1060	ENTER;
		1061	SAVETMPS;
		1062
		1063	PUSHMARK (SP);
		1064	PUTBACK;
		1065	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1066
		1067	FREETMPS;
		1068	LEAVE;
		1069	continue;
		1070	}
		1071
		1072	ta->next = SvSTATE (next_sv);
		1073
		1074	/* cannot transfer to destroyed coros, skip and look for next */
		1075	if (ta->next->flags & CF_DESTROYED)
		1076	{
		1077	UNLOCK;
		1078	SvREFCNT_dec (next_sv);
		1079	/* coro_nready is already taken care of by destroy */
		1080	continue;
		1081	}
		1082
		1083	--coro_nready;
988	UNLOCK;	1084	UNLOCK;
989
990	if (next)
991	break;	1085	break;
992
993	{
994	dSP;
995
996	ENTER;
997	SAVETMPS;
998
999	PUSHMARK (SP);
1000	PUTBACK;
1001	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1002
1003	FREETMPS;
1004	LEAVE;
1005	}	1086	}
1006	}
1007
1008	prev = SvRV (coro_current);
1009	SvRV_set (coro_current, next);
1010		1087
1011	/* free this only after the transfer */	1088	/* free this only after the transfer */
1012	LOCK;	1089	prev_sv = SvRV (coro_current);
1013	free_coro_mortal ();	1090	SvRV_set (coro_current, next_sv);
1014	UNLOCK;
1015	coro_mortal = prev;
1016
1017	assert (!SvROK(prev));//D
1018	assert (!SvROK(next));//D
1019
1020	ta->prev = SvSTATE (prev);	1091	ta->prev = SvSTATE (prev_sv);
1021	ta->next = SvSTATE (next);
1022		1092
1023	assert (ta->next->flags & CF_READY);	1093	assert (ta->next->flags & CF_READY);
1024	ta->next->flags &= ~CF_READY;	1094	ta->next->flags &= ~CF_READY;
1025	}
1026		1095
		1096	LOCK;
		1097	free_coro_mortal (aTHX);
		1098	coro_mortal = prev_sv;
		1099	UNLOCK;
		1100	}
		1101
1027	static void	1102	static void
1028	prepare_cede (struct transfer_args *ta)	1103	prepare_cede (pTHX_ struct transfer_args *ta)
1029	{	1104	{
1030	api_ready (coro_current);	1105	api_ready (coro_current);
1031	prepare_schedule (ta);	1106	prepare_schedule (aTHX_ ta);
1032	}	1107	}
1033		1108
1034	static int	1109	static int
1035	prepare_cede_notself (struct transfer_args *ta)	1110	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1036	{	1111	{
1037	if (coro_nready)	1112	if (coro_nready)
1038	{	1113	{
1039	SV *prev = SvRV (coro_current);	1114	SV *prev = SvRV (coro_current);
1040	prepare_schedule (ta);	1115	prepare_schedule (aTHX_ ta);
1041	api_ready (prev);	1116	api_ready (prev);
1042	return 1;	1117	return 1;
1043	}	1118	}
1044	else	1119	else
1045	return 0;	1120	return 0;
1046	}	1121	}
1047		1122
1048	static void	1123	static void
1049	api_schedule (void)	1124	api_schedule (void)
1050	{	1125	{
		1126	dTHX;
1051	struct transfer_args ta;	1127	struct transfer_args ta;
1052		1128
1053	prepare_schedule (&ta);	1129	prepare_schedule (aTHX_ &ta);
1054	TRANSFER (ta);	1130	TRANSFER (ta);
1055	}	1131	}
1056		1132
1057	static int	1133	static int
1058	api_cede (void)	1134	api_cede (void)
1059	{	1135	{
		1136	dTHX;
1060	struct transfer_args ta;	1137	struct transfer_args ta;
1061		1138
1062	prepare_cede (&ta);	1139	prepare_cede (aTHX_ &ta);
1063		1140
1064	if (ta.prev != ta.next)	1141	if (ta.prev != ta.next)
1065	{	1142	{
1066	TRANSFER (ta);	1143	TRANSFER (ta);
1067	return 1;	1144	return 1;
…		…
1071	}	1148	}
1072		1149
1073	static int	1150	static int
1074	api_cede_notself (void)	1151	api_cede_notself (void)
1075	{	1152	{
		1153	dTHX;
1076	struct transfer_args ta;	1154	struct transfer_args ta;
1077		1155
1078	if (prepare_cede_notself (&ta))	1156	if (prepare_cede_notself (aTHX_ &ta))
1079	{	1157	{
1080	TRANSFER (ta);	1158	TRANSFER (ta);
1081	return 1;	1159	return 1;
1082	}	1160	}
1083	else	1161	else
…		…
1099		1177
1100	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1178	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1101	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1179	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1102	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));	1180	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1103	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));	1181	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1182	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
		1183	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1104	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1184	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1105		1185
1106	main_mainstack = PL_mainstack;	1186	main_mainstack = PL_mainstack;
		1187	main_top_env = PL_top_env;
		1188
		1189	while (main_top_env->je_prev)
		1190	main_top_env = main_top_env->je_prev;
1107		1191
1108	coroapi.ver = CORO_API_VERSION;	1192	coroapi.ver = CORO_API_VERSION;
1109	coroapi.transfer = api_transfer;	1193	coroapi.transfer = api_transfer;
1110		1194
1111	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1195	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1119	HV *hv;	1203	HV *hv;
1120	int i;	1204	int i;
1121		1205
1122	Newz (0, coro, 1, struct coro);	1206	Newz (0, coro, 1, struct coro);
1123	coro->args = newAV ();	1207	coro->args = newAV ();
1124	coro->save = CORO_SAVE_ALL;	1208	coro->save = CORO_SAVE_DEF;
1125	coro->flags = CF_NEW;	1209	coro->flags = CF_NEW;
1126		1210
1127	hv = newHV ();	1211	hv = newHV ();
1128	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1212	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1129	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1213	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
…		…
1136		1220
1137	int	1221	int
1138	save (SV *coro, int new_save = -1)	1222	save (SV *coro, int new_save = -1)
1139	CODE:	1223	CODE:
1140	RETVAL = api_save (coro, new_save);	1224	RETVAL = api_save (coro, new_save);
		1225	OUTPUT:
		1226	RETVAL
		1227
		1228	int
		1229	save_also (SV *coro_sv, int save_also)
		1230	CODE:
		1231	{
		1232	struct coro *coro = SvSTATE (coro_sv);
		1233	RETVAL = coro->save;
		1234	coro->save \|= save_also;
		1235	}
1141	OUTPUT:	1236	OUTPUT:
1142	RETVAL	1237	RETVAL
1143		1238
1144	void	1239	void
1145	_set_stacklevel (...)	1240	_set_stacklevel (...)
…		…
1161		1256
1162	case 1:	1257	case 1:
1163	if (items != 2)	1258	if (items != 2)
1164	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1259	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1165		1260
1166	prepare_transfer (&ta, ST (0), ST (1));	1261	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1167	break;	1262	break;
1168		1263
1169	case 2:	1264	case 2:
1170	prepare_schedule (&ta);	1265	prepare_schedule (aTHX_ &ta);
1171	break;	1266	break;
1172		1267
1173	case 3:	1268	case 3:
1174	prepare_cede (&ta);	1269	prepare_cede (aTHX_ &ta);
1175	break;	1270	break;
1176		1271
1177	case 4:	1272	case 4:
1178	if (!prepare_cede_notself (&ta))	1273	if (!prepare_cede_notself (aTHX_ &ta))
1179	XSRETURN_EMPTY;	1274	XSRETURN_EMPTY;
1180		1275
1181	break;	1276	break;
1182	}	1277	}
1183		1278
1184	BARRIER;	1279	BARRIER;
1185	TRANSFER (ta);	1280	TRANSFER (ta);
1186	}
1187		1281
1188	void	1282	if (GIMME_V != G_VOID && ta.next != ta.prev)
1189	_clone_state_from (SV dst, SV src)	1283	XSRETURN_YES;
		1284	}
		1285
		1286	bool
		1287	_destroy (SV *coro_sv)
1190	CODE:	1288	CODE:
1191	{	1289	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1192	struct coro *coro_src = SvSTATE (src);	1290	OUTPUT:
1193		1291	RETVAL
1194	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1195
1196	++coro_src->refcnt;
1197	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1198	}
1199		1292
1200	void	1293	void
1201	_exit (code)	1294	_exit (code)
1202	int code	1295	int code
1203	PROTOTYPE: $	1296	PROTOTYPE: $
1204	CODE:	1297	CODE:
1205	_exit (code);	1298	_exit (code);
		1299
		1300	int
		1301	cctx_stacksize (int new_stacksize = 0)
		1302	CODE:
		1303	RETVAL = coro_stacksize;
		1304	if (new_stacksize)
		1305	coro_stacksize = new_stacksize;
		1306	OUTPUT:
		1307	RETVAL
1206		1308
1207	int	1309	int
1208	cctx_count ()	1310	cctx_count ()
1209	CODE:	1311	CODE:
1210	RETVAL = cctx_count;	1312	RETVAL = cctx_count;

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Comparing Coro/Coro/State.xs (file contents): Revision 1.131 by root, Fri Dec 29 11:37:49 2006 UTC vs. Revision 1.148 by root, Fri Apr 13 12:56:55 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.131 by root, Fri Dec 29 11:37:49 2006 UTC vs.
Revision 1.148 by root, Fri Apr 13 12:56:55 2007 UTC