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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.133 by root, Thu Jan 4 20:14:19 2007 UTC vs.
Revision 1.149 by root, Sat Apr 14 15:06:05 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"
…		…
185	};	193	};
186		194
187	typedef struct coro *Coro__State;	195	typedef struct coro *Coro__State;
188	typedef struct coro *Coro__State_or_hashref;	196	typedef struct coro *Coro__State_or_hashref;
189		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
190	static AV *	214	static AV *
191	coro_clone_padlist (CV *cv)	215	coro_clone_padlist (pTHX_ CV *cv)
192	{	216	{
193	AV *padlist = CvPADLIST (cv);	217	AV *padlist = CvPADLIST (cv);
194	AV newpadlist, newpad;	218	AV newpadlist, newpad;
195		219
196	newpadlist = newAV ();	220	newpadlist = newAV ();
…		…
208		232
209	return newpadlist;	233	return newpadlist;
210	}	234	}
211		235
212	static void	236	static void
213	free_padlist (AV *padlist)	237	free_padlist (pTHX_ AV *padlist)
214	{	238	{
215	/* may be during global destruction */	239	/* may be during global destruction */
216	if (SvREFCNT (padlist))	240	if (SvREFCNT (padlist))
217	{	241	{
218	I32 i = AvFILLp (padlist);	242	I32 i = AvFILLp (padlist);
…		…
239	AV *padlist;	263	AV *padlist;
240	AV av = (AV )mg->mg_obj;	264	AV av = (AV )mg->mg_obj;
241		265
242	/* casting is fun. */	266	/* casting is fun. */
243	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	267	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
244	free_padlist (padlist);	268	free_padlist (aTHX_ padlist);
245		269
246	SvREFCNT_dec (av);	270	SvREFCNT_dec (av);
247		271
248	return 0;	272	return 0;
249	}	273	}
…		…
259	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	283	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
260	: 0	284	: 0
261		285
262	/* the next two functions merely cache the padlists */	286	/* the next two functions merely cache the padlists */
263	static void	287	static void
264	get_padlist (CV *cv)	288	get_padlist (pTHX_ CV *cv)
265	{	289	{
266	MAGIC *mg = CORO_MAGIC (cv);	290	MAGIC *mg = CORO_MAGIC (cv);
267	AV *av;	291	AV *av;
268		292
269	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	293	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
270	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	294	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
271	else	295	else
272	{	296	{
273	#if PREFER_PERL_FUNCTIONS	297	#if CORO_PREFER_PERL_FUNCTIONS
274	/* this is probably cleaner, but also slower? */	298	/* this is probably cleaner, but also slower? */
275	CV *cp = Perl_cv_clone (cv);	299	CV *cp = Perl_cv_clone (cv);
276	CvPADLIST (cv) = CvPADLIST (cp);	300	CvPADLIST (cv) = CvPADLIST (cp);
277	CvPADLIST (cp) = 0;	301	CvPADLIST (cp) = 0;
278	SvREFCNT_dec (cp);	302	SvREFCNT_dec (cp);
279	#else	303	#else
280	CvPADLIST (cv) = coro_clone_padlist (cv);	304	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
281	#endif	305	#endif
282	}	306	}
283	}	307	}
284		308
285	static void	309	static void
286	put_padlist (CV *cv)	310	put_padlist (pTHX_ CV *cv)
287	{	311	{
288	MAGIC *mg = CORO_MAGIC (cv);	312	MAGIC *mg = CORO_MAGIC (cv);
289	AV *av;	313	AV *av;
290		314
291	if (!mg)	315	if (!mg)
…		…
302	av_extend (av, AvMAX (av) + 1);	326	av_extend (av, AvMAX (av) + 1);
303		327
304	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	328	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
305	}	329	}
306		330
		331	/ load & save, init *****************************************************/
		332
307	#define SB do {	333	#define SB do {
308	#define SE } while (0)	334	#define SE } while (0)
309		335
310	#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
311		337
312	static void	338	static void
313	load_perl (Coro__State c)	339	load_perl (pTHX_ Coro__State c)
314	{	340	{
315	#define VAR(name,type) PL_ ## name = c->name;	341	#define VAR(name,type) PL_ ## name = c->name;
316	# include "state.h"	342	# include "state.h"
317	#undef VAR	343	#undef VAR
318		344
319	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	345	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
320	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	346	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
321	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
322	if (c->irssv)	350	if (c->irssv)
323	{	351	{
324	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))	352	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		353	{
325	SvREFCNT_dec (c->irssv);	354	SvREFCNT_dec (c->irssv);
		355	c->irssv = 0;
		356	}
326	else	357	else
327	{	358	{
328	REPLACE_SV (PL_rs, c->irssv);	359	REPLACE_SV (PL_rs, c->irssv);
329	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);	360	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
330	sv_setsv (c->irssv_sv, PL_rs);	361	sv_setsv (c->irssv_sv, PL_rs);
…		…
336	CV *cv;	367	CV *cv;
337		368
338	/* now do the ugly restore mess */	369	/* now do the ugly restore mess */
339	while ((cv = (CV *)POPs))	370	while ((cv = (CV *)POPs))
340	{	371	{
341	put_padlist (cv); /* mark this padlist as available */	372	put_padlist (aTHX_ cv); /* mark this padlist as available */
342	CvDEPTH (cv) = PTR2IV (POPs);	373	CvDEPTH (cv) = PTR2IV (POPs);
343	CvPADLIST (cv) = (AV *)POPs;	374	CvPADLIST (cv) = (AV *)POPs;
344	}	375	}
345		376
346	PUTBACK;	377	PUTBACK;
347	}	378	}
		379	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
348	}	380	}
349		381
350	static void	382	static void
351	save_perl (Coro__State c)	383	save_perl (pTHX_ Coro__State c)
352	{	384	{
		385	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
353	{	386	{
354	dSP;	387	dSP;
355	I32 cxix = cxstack_ix;	388	I32 cxix = cxstack_ix;
356	PERL_CONTEXT *ccstk = cxstack;	389	PERL_CONTEXT *ccstk = cxstack;
357	PERL_SI *top_si = PL_curstackinfo;	390	PERL_SI *top_si = PL_curstackinfo;
…		…
380	PUSHs ((SV *)CvPADLIST (cv));	413	PUSHs ((SV *)CvPADLIST (cv));
381	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	414	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
382	PUSHs ((SV *)cv);	415	PUSHs ((SV *)cv);
383		416
384	CvDEPTH (cv) = 0;	417	CvDEPTH (cv) = 0;
385	get_padlist (cv);	418	get_padlist (aTHX_ cv);
386	}	419	}
387	}	420	}
388	}	421	}
389		422
390	if (top_si->si_type == PERLSI_MAIN)	423	if (top_si->si_type == PERLSI_MAIN)
…		…
399	}	432	}
400		433
401	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;
402	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	435	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
403	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;
404	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;
405		439
406	#define VAR(name,type)c->name = PL_ ## name;	440	#define VAR(name,type)c->name = PL_ ## name;
407	# include "state.h"	441	# include "state.h"
408	#undef VAR	442	#undef VAR
…		…
412	* allocate various perl stacks. This is an exact copy	446	* allocate various perl stacks. This is an exact copy
413	* of perl.c:init_stacks, except that it uses less memory	447	* of perl.c:init_stacks, except that it uses less memory
414	* on the (sometimes correct) assumption that coroutines do	448	* on the (sometimes correct) assumption that coroutines do
415	* not usually need a lot of stackspace.	449	* not usually need a lot of stackspace.
416	*/	450	*/
417	#if PREFER_PERL_FUNCTIONS	451	#if CORO_PREFER_PERL_FUNCTIONS
418	# define coro_init_stacks init_stacks	452	# define coro_init_stacks init_stacks
419	#else	453	#else
420	static void	454	static void
421	coro_init_stacks ()	455	coro_init_stacks (pTHX)
422	{	456	{
423	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	457	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
424	PL_curstackinfo->si_type = PERLSI_MAIN;	458	PL_curstackinfo->si_type = PERLSI_MAIN;
425	PL_curstack = PL_curstackinfo->si_stack;	459	PL_curstack = PL_curstackinfo->si_stack;
426	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	460	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
…		…
460		494
461	/*	495	/*
462	* destroy the stacks, the callchain etc...	496	* destroy the stacks, the callchain etc...
463	*/	497	*/
464	static void	498	static void
465	coro_destroy_stacks ()	499	coro_destroy_stacks (pTHX)
466	{	500	{
467	if (!IN_DESTRUCT)	501	if (!IN_DESTRUCT)
468	{	502	{
469	/* restore all saved variables and stuff */	503	/* restore all saved variables and stuff */
470	LEAVE_SCOPE (0);	504	LEAVE_SCOPE (0);
…		…
472		506
473	/* free all temporaries */	507	/* free all temporaries */
474	FREETMPS;	508	FREETMPS;
475	assert (PL_tmps_ix == -1);	509	assert (PL_tmps_ix == -1);
476		510
		511	/* unwind all extra stacks */
477	POPSTACK_TO (PL_mainstack);	512	POPSTACK_TO (PL_mainstack);
		513
		514	/* unwind main stack */
		515	dounwind (-1);
478	}	516	}
479		517
480	while (PL_curstackinfo->si_next)	518	while (PL_curstackinfo->si_next)
481	PL_curstackinfo = PL_curstackinfo->si_next;	519	PL_curstackinfo = PL_curstackinfo->si_next;
482		520
…		…
499	#if !PERL_VERSION_ATLEAST (5,9,0)	537	#if !PERL_VERSION_ATLEAST (5,9,0)
500	Safefree (PL_retstack);	538	Safefree (PL_retstack);
501	#endif	539	#endif
502	}	540	}
503		541
		542	/ coroutine stack handling **********************************************/
		543
504	static void	544	static void
505	setup_coro (struct coro *coro)	545	setup_coro (pTHX_ struct coro *coro)
506	{	546	{
507	/*	547	/*
508	* emulate part of the perl startup here.	548	* emulate part of the perl startup here.
509	*/	549	*/
510
511	coro_init_stacks ();	550	coro_init_stacks (aTHX);
512		551
513	PL_curcop = &PL_compiling;	552	PL_curcop = &PL_compiling;
514	PL_in_eval = EVAL_NULL;	553	PL_in_eval = EVAL_NULL;
		554	PL_comppad = 0;
515	PL_curpm = 0;	555	PL_curpm = 0;
516	PL_localizing = 0;	556	PL_localizing = 0;
517	PL_dirty = 0;	557	PL_dirty = 0;
518	PL_restartop = 0;	558	PL_restartop = 0;
519		559
…		…
527	Zero (&myop, 1, LOGOP);	567	Zero (&myop, 1, LOGOP);
528	myop.op_next = Nullop;	568	myop.op_next = Nullop;
529	myop.op_flags = OPf_WANT_VOID;	569	myop.op_flags = OPf_WANT_VOID;
530		570
531	PUSHMARK (SP);	571	PUSHMARK (SP);
532	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	572	XPUSHs (av_shift (GvAV (PL_defgv)));
533	PUTBACK;	573	PUTBACK;
534	PL_op = (OP *)&myop;	574	PL_op = (OP *)&myop;
535	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	575	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
536	SPAGAIN;	576	SPAGAIN;
537	}	577	}
538		578
539	ENTER; /* necessary e.g. for dounwind */	579	ENTER; /* necessary e.g. for dounwind */
540	}	580	}
541		581
542	static void	582	static void
543	free_coro_mortal ()	583	free_coro_mortal (pTHX)
544	{	584	{
545	if (coro_mortal)	585	if (coro_mortal)
546	{	586	{
547	SvREFCNT_dec (coro_mortal);	587	SvREFCNT_dec (coro_mortal);
548	coro_mortal = 0;	588	coro_mortal = 0;
549	}	589	}
550	}	590	}
551		591
552	/* 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 */
553	static void NOINLINE	595	static void NOINLINE
554	prepare_cctx (coro_cctx *cctx)	596	prepare_cctx (pTHX_ coro_cctx *cctx)
555	{	597	{
556	dSP;	598	dSP;
557	LOGOP myop;	599	LOGOP myop;
558		600
559	Zero (&myop, 1, LOGOP);	601	Zero (&myop, 1, LOGOP);
…		…
568	PL_op = (OP *)&myop;	610	PL_op = (OP *)&myop;
569	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	611	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
570	SPAGAIN;	612	SPAGAIN;
571	}	613	}
572		614
		615	/*
		616	* this is a _very_ stripped down perl interpreter ;)
		617	*/
573	static void	618	static void
574	coro_run (void *arg)	619	coro_run (void *arg)
575	{	620	{
		621	dTHX;
		622
576	/* coro_run is the alternative tail of transfer(), so unlock here. */	623	/* coro_run is the alternative tail of transfer(), so unlock here. */
577	UNLOCK;	624	UNLOCK;
578		625
579	/*
580	* this is a _very_ stripped down perl interpreter ;)
581	*/
582	PL_top_env = &PL_start_env;	626	PL_top_env = &PL_start_env;
583		627
584	/* inject call to cctx_init */	628	/* inject a fake subroutine call to cctx_init */
585	prepare_cctx ((coro_cctx *)arg);	629	prepare_cctx (aTHX_ (coro_cctx *)arg);
586		630
587	/* 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 */
588	PL_restartop = PL_op;	632	PL_restartop = PL_op;
589	perl_run (PL_curinterp);	633	perl_run (PL_curinterp);
590		634
591	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	635	/*
592	abort ();	636	* If perl-run returns we assume exit() was being called or the coro
		637	* fell off the end, which seems to be the only valid (non-bug)
		638	* reason for perl_run to return. We try to exit by jumping to the
		639	* bootstrap-time "top" top_env, as we cannot restore the "main"
		640	* coroutine as Coro has no such concept
		641	*/
		642	PL_top_env = main_top_env;
		643	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
593	}	644	}
594		645
595	static coro_cctx *	646	static coro_cctx *
596	cctx_new ()	647	cctx_new ()
597	{	648	{
598	coro_cctx *cctx;	649	coro_cctx *cctx;
		650	void *stack_start;
		651	size_t stack_size;
599		652
600	++cctx_count;	653	++cctx_count;
601		654
602	Newz (0, cctx, 1, coro_cctx);	655	Newz (0, cctx, 1, coro_cctx);
603		656
604	#if HAVE_MMAP	657	#if HAVE_MMAP
605		658
606	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	659	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
607	/* mmap supposedly does allocate-on-write for us */	660	/* mmap supposedly does allocate-on-write for us */
608	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	661	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
609		662
610	if (cctx->sptr == (void *)-1)	663	if (cctx->sptr != (void *)-1)
611	{
612	perror ("FATAL: unable to mmap stack for coroutine");
613	_exit (EXIT_FAILURE);
614	}	664	{
615
616	# if STACKGUARD	665	# if CORO_STACKGUARD
617	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	666	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
618	# endif	667	# endif
		668	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		669	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		670	cctx->mapped = 1;
		671	}
		672	else
		673	#endif
		674	{
		675	cctx->ssize = coro_stacksize * (long)sizeof (long);
		676	New (0, cctx->sptr, coro_stacksize, long);
619		677
620	#else
621
622	cctx->ssize = STACKSIZE * (long)sizeof (long);
623	New (0, cctx->sptr, STACKSIZE, long);
624
625	if (!cctx->sptr)	678	if (!cctx->sptr)
626	{	679	{
627	perror ("FATAL: unable to malloc stack for coroutine");	680	perror ("FATAL: unable to allocate stack for coroutine");
628	_exit (EXIT_FAILURE);	681	_exit (EXIT_FAILURE);
629	}	682	}
630		683
631	#endif	684	stack_start = cctx->sptr;
		685	stack_size = cctx->ssize;
		686	}
632		687
633	#if USE_VALGRIND	688	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
634	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
635	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
636	cctx->ssize + (char *)cctx->sptr
637	);
638	#endif
639
640	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	689	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
641		690
642	return cctx;	691	return cctx;
643	}	692	}
644		693
645	static void	694	static void
…		…
648	if (!cctx)	697	if (!cctx)
649	return;	698	return;
650		699
651	--cctx_count;	700	--cctx_count;
652		701
653	#if USE_VALGRIND	702	#if CORO_USE_VALGRIND
654	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	703	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
655	#endif	704	#endif
656		705
657	#if HAVE_MMAP	706	#if HAVE_MMAP
		707	if (cctx->mapped)
658	munmap (cctx->sptr, cctx->ssize);	708	munmap (cctx->sptr, cctx->ssize);
659	#else	709	else
		710	#endif
660	Safefree (cctx->sptr);	711	Safefree (cctx->sptr);
661	#endif
662		712
663	Safefree (cctx);	713	Safefree (cctx);
664	}	714	}
665		715
666	static coro_cctx *	716	static coro_cctx *
667	cctx_get ()	717	cctx_get (pTHX)
668	{	718	{
669	coro_cctx *cctx;
670
671	if (cctx_first)	719	while (cctx_first)
672	{	720	{
673	cctx = cctx_first;	721	coro_cctx *cctx = cctx_first;
674	cctx_first = cctx->next;	722	cctx_first = cctx->next;
675	--cctx_idle;	723	--cctx_idle;
		724
		725	if (cctx->ssize >= coro_stacksize)
		726	return cctx;
		727
		728	cctx_destroy (cctx);
676	}	729	}
677	else	730
678	{
679	cctx = cctx_new ();
680	PL_op = PL_op->op_next;	731	PL_op = PL_op->op_next;
681	}
682
683	return cctx;	732	return cctx_new ();
684	}	733	}
685		734
686	static void	735	static void
687	cctx_put (coro_cctx *cctx)	736	cctx_put (coro_cctx *cctx)
688	{	737	{
…		…
700	++cctx_idle;	749	++cctx_idle;
701	cctx->next = cctx_first;	750	cctx->next = cctx_first;
702	cctx_first = cctx;	751	cctx_first = cctx;
703	}	752	}
704		753
		754	/ coroutine switching ***************************************************/
		755
705	/* never call directly, always through the coro_state_transfer global variable */	756	/* never call directly, always through the coro_state_transfer global variable */
706	static void NOINLINE	757	static void NOINLINE
707	transfer (struct coro prev, struct coro next)	758	transfer (pTHX_ struct coro prev, struct coro next)
708	{	759	{
709	dSTACKLEVEL;	760	dSTACKLEVEL;
710		761
711	/* sometimes transfer is only called to set idle_sp */	762	/* sometimes transfer is only called to set idle_sp */
712	if (!next)	763	if (!next)
…		…
745	if (next->flags & CF_NEW)	796	if (next->flags & CF_NEW)
746	{	797	{
747	/* need to start coroutine */	798	/* need to start coroutine */
748	next->flags &= ~CF_NEW;	799	next->flags &= ~CF_NEW;
749	/* first get rid of the old state */	800	/* first get rid of the old state */
750	save_perl (prev);	801	save_perl (aTHX_ prev);
751	/* setup coroutine call */	802	/* setup coroutine call */
752	setup_coro (next);	803	setup_coro (aTHX_ next);
753	/* need a new stack */	804	/* need a new stack */
754	assert (!next->cctx);	805	assert (!next->cctx);
755	}	806	}
756	else	807	else
757	{	808	{
758	/* coroutine already started */	809	/* coroutine already started */
759	save_perl (prev);	810	save_perl (aTHX_ prev);
760	load_perl (next);	811	load_perl (aTHX_ next);
761	}	812	}
762		813
763	prev__cctx = prev->cctx;	814	prev__cctx = prev->cctx;
764		815
765	/* possibly "free" the cctx */	816	/* possibly "free" the cctx */
…		…
774	prev__cctx->inuse = 0;	825	prev__cctx->inuse = 0;
775	}	826	}
776		827
777	if (!next->cctx)	828	if (!next->cctx)
778	{	829	{
779	next->cctx = cctx_get ();	830	next->cctx = cctx_get (aTHX);
780	assert (!next->cctx->inuse);	831	assert (!next->cctx->inuse);
781	next->cctx->inuse = 1;	832	next->cctx->inuse = 1;
782	}	833	}
783		834
784	if (prev__cctx != next->cctx)	835	if (prev__cctx != next->cctx)
…		…
786	prev__cctx->top_env = PL_top_env;	837	prev__cctx->top_env = PL_top_env;
787	PL_top_env = next->cctx->top_env;	838	PL_top_env = next->cctx->top_env;
788	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	839	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
789	}	840	}
790		841
791	free_coro_mortal ();	842	free_coro_mortal (aTHX);
792	UNLOCK;	843	UNLOCK;
793	}	844	}
794	}	845	}
795		846
796	struct transfer_args	847	struct transfer_args
797	{	848	{
798	struct coro prev, next;	849	struct coro prev, next;
799	};	850	};
800		851
801	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	852	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		853
		854	/ high level stuff ******************************************************/
802		855
803	static int	856	static int
804	coro_state_destroy (struct coro *coro)	857	coro_state_destroy (pTHX_ struct coro *coro)
805	{	858	{
806	if (coro->refcnt--)
807	return 0;
808
809	if (coro->flags & CF_DESTROYED)	859	if (coro->flags & CF_DESTROYED)
810	return 0;	860	return 0;
811		861
812	coro->flags \|= CF_DESTROYED;	862	coro->flags \|= CF_DESTROYED;
		863
		864	if (coro->flags & CF_READY)
		865	{
		866	/* reduce nready, as destroying a ready coro effectively unreadies it */
		867	/* alternative: look through all ready queues and remove the coro */
		868	LOCK;
		869	--coro_nready;
		870	UNLOCK;
		871	}
		872	else
		873	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
813		874
814	if (coro->mainstack && coro->mainstack != main_mainstack)	875	if (coro->mainstack && coro->mainstack != main_mainstack)
815	{	876	{
		877	struct coro temp;
		878
816	assert (!(coro->flags & CF_RUNNING));	879	assert (!(coro->flags & CF_RUNNING));
817		880
818	struct coro temp;
819	Zero (&temp, 1, struct coro);	881	Zero (&temp, 1, struct coro);
820	temp.save = CORO_SAVE_ALL;	882	temp.save = CORO_SAVE_DEF;
821		883
822	if (coro->flags & CF_RUNNING)	884	if (coro->flags & CF_RUNNING)
823	croak ("FATAL: tried to destroy currently running coroutine");	885	croak ("FATAL: tried to destroy currently running coroutine");
824		886
825	save_perl (&temp);	887	save_perl (aTHX_ &temp);
826	load_perl (coro);	888	load_perl (aTHX_ coro);
827		889
828	coro_destroy_stacks ();	890	coro_destroy_stacks (aTHX);
829		891
830	load_perl (&temp); /* this will get rid of defsv etc.. */	892	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
831		893
832	coro->mainstack = 0;	894	coro->mainstack = 0;
833	}	895	}
834		896
835	cctx_destroy (coro->cctx);	897	cctx_destroy (coro->cctx);
…		…
837		899
838	return 1;	900	return 1;
839	}	901	}
840		902
841	static int	903	static int
842	coro_state_clear (pTHX_ SV sv, MAGIC mg)	904	coro_state_free (pTHX_ SV sv, MAGIC mg)
843	{	905	{
844	struct coro coro = (struct coro )mg->mg_ptr;	906	struct coro coro = (struct coro )mg->mg_ptr;
845	mg->mg_ptr = 0;	907	mg->mg_ptr = 0;
846		908
		909	if (--coro->refcnt < 0)
		910	{
847	coro_state_destroy (coro);	911	coro_state_destroy (aTHX_ coro);
848
849	if (!coro->refcnt)
850	Safefree (coro);	912	Safefree (coro);
		913	}
851		914
852	return 0;	915	return 0;
853	}	916	}
854		917
855	static int	918	static int
…		…
862	return 0;	925	return 0;
863	}	926	}
864		927
865	static MGVTBL coro_state_vtbl = {	928	static MGVTBL coro_state_vtbl = {
866	0, 0, 0, 0,	929	0, 0, 0, 0,
867	coro_state_clear,	930	coro_state_free,
868	0,	931	0,
869	#ifdef MGf_DUP	932	#ifdef MGf_DUP
870	coro_state_dup,	933	coro_state_dup,
871	#else	934	#else
872	# define MGf_DUP 0	935	# define MGf_DUP 0
873	#endif	936	#endif
874	};	937	};
875		938
876	static struct coro *	939	static struct coro *
877	SvSTATE (SV *coro)	940	SvSTATE_ (pTHX_ SV *coro)
878	{	941	{
879	HV *stash;	942	HV *stash;
880	MAGIC *mg;	943	MAGIC *mg;
881		944
882	if (SvROK (coro))	945	if (SvROK (coro))
…		…
888	/* very slow, but rare, check */	951	/* very slow, but rare, check */
889	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	952	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
890	croak ("Coro::State object required");	953	croak ("Coro::State object required");
891	}	954	}
892		955
893	mg = SvMAGIC (coro);	956	mg = CORO_MAGIC (coro);
894	assert (mg->mg_type == PERL_MAGIC_ext);
895	return (struct coro *)mg->mg_ptr;	957	return (struct coro *)mg->mg_ptr;
896	}	958	}
897		959
		960	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		961
898	static void	962	static void
899	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	963	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
900	{	964	{
901	ta->prev = SvSTATE (prev_sv);	965	ta->prev = SvSTATE (prev_sv);
902	ta->next = SvSTATE (next_sv);	966	ta->next = SvSTATE (next_sv);
903	}	967	}
904		968
905	static void	969	static void
906	api_transfer (SV prev_sv, SV next_sv)	970	api_transfer (SV prev_sv, SV next_sv)
907	{	971	{
		972	dTHX;
908	struct transfer_args ta;	973	struct transfer_args ta;
909		974
910	prepare_transfer (&ta, prev_sv, next_sv);	975	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
911	TRANSFER (ta);	976	TRANSFER (ta);
912	}	977	}
913		978
914	static int	979	static int
915	api_save (SV *coro_sv, int new_save)	980	api_save (SV *coro_sv, int new_save)
916	{	981	{
		982	dTHX;
917	struct coro *coro = SvSTATE (coro_sv);	983	struct coro *coro = SvSTATE (coro_sv);
918	int old_save = coro->save;	984	int old_save = coro->save;
919		985
920	if (new_save >= 0)	986	if (new_save >= 0)
921	coro->save = new_save;	987	coro->save = new_save;
…		…
923	return old_save;	989	return old_save;
924	}	990	}
925		991
926	/ Coro ******************************************************************/	992	/ Coro ******************************************************************/
927		993
928	#define PRIO_MAX 3
929	#define PRIO_HIGH 1
930	#define PRIO_NORMAL 0
931	#define PRIO_LOW -1
932	#define PRIO_IDLE -3
933	#define PRIO_MIN -4
934
935	/* for Coro.pm */
936	static SV *coro_current;
937	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
938	static int coro_nready;
939
940	static void	994	static void
941	coro_enq (SV *coro_sv)	995	coro_enq (pTHX_ SV *coro_sv)
942	{	996	{
943	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	997	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
944	coro_nready++;
945	}	998	}
946		999
947	static SV *	1000	static SV *
948	coro_deq (int min_prio)	1001	coro_deq (pTHX_ int min_prio)
949	{	1002	{
950	int prio = PRIO_MAX - PRIO_MIN;	1003	int prio = PRIO_MAX - PRIO_MIN;
951		1004
952	min_prio -= PRIO_MIN;	1005	min_prio -= PRIO_MIN;
953	if (min_prio < 0)	1006	if (min_prio < 0)
954	min_prio = 0;	1007	min_prio = 0;
955		1008
956	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1009	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
957	if (AvFILLp (coro_ready [prio]) >= 0)	1010	if (AvFILLp (coro_ready [prio]) >= 0)
958	{
959	coro_nready--;
960	return av_shift (coro_ready [prio]);	1011	return av_shift (coro_ready [prio]);
961	}
962		1012
963	return 0;	1013	return 0;
964	}	1014	}
965		1015
966	static int	1016	static int
967	api_ready (SV *coro_sv)	1017	api_ready (SV *coro_sv)
968	{	1018	{
		1019	dTHX;
969	struct coro *coro;	1020	struct coro *coro;
970		1021
971	if (SvROK (coro_sv))	1022	if (SvROK (coro_sv))
972	coro_sv = SvRV (coro_sv);	1023	coro_sv = SvRV (coro_sv);
973		1024
…		…
977	return 0;	1028	return 0;
978		1029
979	coro->flags \|= CF_READY;	1030	coro->flags \|= CF_READY;
980		1031
981	LOCK;	1032	LOCK;
982	coro_enq (SvREFCNT_inc (coro_sv));	1033	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
		1034	++coro_nready;
983	UNLOCK;	1035	UNLOCK;
984		1036
985	return 1;	1037	return 1;
986	}	1038	}
987		1039
988	static int	1040	static int
989	api_is_ready (SV *coro_sv)	1041	api_is_ready (SV *coro_sv)
990	{	1042	{
		1043	dTHX;
991	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1044	return !!(SvSTATE (coro_sv)->flags & CF_READY);
992	}	1045	}
993		1046
994	static void	1047	static void
995	prepare_schedule (struct transfer_args *ta)	1048	prepare_schedule (pTHX_ struct transfer_args *ta)
996	{	1049	{
997	SV prev_sv, next_sv;	1050	SV prev_sv, next_sv;
998		1051
999	for (;;)	1052	for (;;)
1000	{	1053	{
1001	LOCK;	1054	LOCK;
1002	next_sv = coro_deq (PRIO_MIN);	1055	next_sv = coro_deq (aTHX_ PRIO_MIN);
1003	UNLOCK;
1004		1056
1005	/* nothing to schedule: call the idle handler */	1057	/* nothing to schedule: call the idle handler */
1006	if (!next_sv)	1058	if (!next_sv)
1007	{	1059	{
1008	dSP;	1060	dSP;
		1061	UNLOCK;
1009		1062
1010	ENTER;	1063	ENTER;
1011	SAVETMPS;	1064	SAVETMPS;
1012		1065
1013	PUSHMARK (SP);	1066	PUSHMARK (SP);
…		…
1022	ta->next = SvSTATE (next_sv);	1075	ta->next = SvSTATE (next_sv);
1023		1076
1024	/* cannot transfer to destroyed coros, skip and look for next */	1077	/* cannot transfer to destroyed coros, skip and look for next */
1025	if (ta->next->flags & CF_DESTROYED)	1078	if (ta->next->flags & CF_DESTROYED)
1026	{	1079	{
		1080	UNLOCK;
1027	SvREFCNT_dec (next_sv);	1081	SvREFCNT_dec (next_sv);
		1082	/* coro_nready is already taken care of by destroy */
1028	continue;	1083	continue;
1029	}	1084	}
1030		1085
		1086	--coro_nready;
		1087	UNLOCK;
1031	break;	1088	break;
1032	}	1089	}
1033		1090
1034	/* free this only after the transfer */	1091	/* free this only after the transfer */
1035	prev_sv = SvRV (coro_current);	1092	prev_sv = SvRV (coro_current);
…		…
1038		1095
1039	assert (ta->next->flags & CF_READY);	1096	assert (ta->next->flags & CF_READY);
1040	ta->next->flags &= ~CF_READY;	1097	ta->next->flags &= ~CF_READY;
1041		1098
1042	LOCK;	1099	LOCK;
1043	free_coro_mortal ();	1100	free_coro_mortal (aTHX);
1044	coro_mortal = prev_sv;	1101	coro_mortal = prev_sv;
1045	UNLOCK;	1102	UNLOCK;
1046	}	1103	}
1047		1104
1048	static void	1105	static void
1049	prepare_cede (struct transfer_args *ta)	1106	prepare_cede (pTHX_ struct transfer_args *ta)
1050	{	1107	{
1051	api_ready (coro_current);	1108	api_ready (coro_current);
1052	prepare_schedule (ta);	1109	prepare_schedule (aTHX_ ta);
1053	}	1110	}
1054		1111
1055	static int	1112	static int
1056	prepare_cede_notself (struct transfer_args *ta)	1113	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1057	{	1114	{
1058	if (coro_nready)	1115	if (coro_nready)
1059	{	1116	{
1060	SV *prev = SvRV (coro_current);	1117	SV *prev = SvRV (coro_current);
1061	prepare_schedule (ta);	1118	prepare_schedule (aTHX_ ta);
1062	api_ready (prev);	1119	api_ready (prev);
1063	return 1;	1120	return 1;
1064	}	1121	}
1065	else	1122	else
1066	return 0;	1123	return 0;
1067	}	1124	}
1068		1125
1069	static void	1126	static void
1070	api_schedule (void)	1127	api_schedule (void)
1071	{	1128	{
		1129	dTHX;
1072	struct transfer_args ta;	1130	struct transfer_args ta;
1073		1131
1074	prepare_schedule (&ta);	1132	prepare_schedule (aTHX_ &ta);
1075	TRANSFER (ta);	1133	TRANSFER (ta);
1076	}	1134	}
1077		1135
1078	static int	1136	static int
1079	api_cede (void)	1137	api_cede (void)
1080	{	1138	{
		1139	dTHX;
1081	struct transfer_args ta;	1140	struct transfer_args ta;
1082		1141
1083	prepare_cede (&ta);	1142	prepare_cede (aTHX_ &ta);
1084		1143
1085	if (ta.prev != ta.next)	1144	if (ta.prev != ta.next)
1086	{	1145	{
1087	TRANSFER (ta);	1146	TRANSFER (ta);
1088	return 1;	1147	return 1;
…		…
1092	}	1151	}
1093		1152
1094	static int	1153	static int
1095	api_cede_notself (void)	1154	api_cede_notself (void)
1096	{	1155	{
		1156	dTHX;
1097	struct transfer_args ta;	1157	struct transfer_args ta;
1098		1158
1099	if (prepare_cede_notself (&ta))	1159	if (prepare_cede_notself (aTHX_ &ta))
1100	{	1160	{
1101	TRANSFER (ta);	1161	TRANSFER (ta);
1102	return 1;	1162	return 1;
1103	}	1163	}
1104	else	1164	else
…		…
1120		1180
1121	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1181	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1122	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1182	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1123	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));	1183	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1124	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));	1184	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1185	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
		1186	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1125	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1187	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1126		1188
1127	main_mainstack = PL_mainstack;	1189	main_mainstack = PL_mainstack;
		1190	main_top_env = PL_top_env;
		1191
		1192	while (main_top_env->je_prev)
		1193	main_top_env = main_top_env->je_prev;
1128		1194
1129	coroapi.ver = CORO_API_VERSION;	1195	coroapi.ver = CORO_API_VERSION;
1130	coroapi.transfer = api_transfer;	1196	coroapi.transfer = api_transfer;
1131		1197
1132	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1198	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1140	HV *hv;	1206	HV *hv;
1141	int i;	1207	int i;
1142		1208
1143	Newz (0, coro, 1, struct coro);	1209	Newz (0, coro, 1, struct coro);
1144	coro->args = newAV ();	1210	coro->args = newAV ();
1145	coro->save = CORO_SAVE_ALL;	1211	coro->save = CORO_SAVE_DEF;
1146	coro->flags = CF_NEW;	1212	coro->flags = CF_NEW;
1147		1213
1148	hv = newHV ();	1214	hv = newHV ();
1149	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1215	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1150	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1216	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
…		…
1157		1223
1158	int	1224	int
1159	save (SV *coro, int new_save = -1)	1225	save (SV *coro, int new_save = -1)
1160	CODE:	1226	CODE:
1161	RETVAL = api_save (coro, new_save);	1227	RETVAL = api_save (coro, new_save);
		1228	OUTPUT:
		1229	RETVAL
		1230
		1231	int
		1232	save_also (SV *coro_sv, int save_also)
		1233	CODE:
		1234	{
		1235	struct coro *coro = SvSTATE (coro_sv);
		1236	RETVAL = coro->save;
		1237	coro->save \|= save_also;
		1238	}
1162	OUTPUT:	1239	OUTPUT:
1163	RETVAL	1240	RETVAL
1164		1241
1165	void	1242	void
1166	_set_stacklevel (...)	1243	_set_stacklevel (...)
…		…
1182		1259
1183	case 1:	1260	case 1:
1184	if (items != 2)	1261	if (items != 2)
1185	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1262	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1186		1263
1187	prepare_transfer (&ta, ST (0), ST (1));	1264	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1188	break;	1265	break;
1189		1266
1190	case 2:	1267	case 2:
1191	prepare_schedule (&ta);	1268	prepare_schedule (aTHX_ &ta);
1192	break;	1269	break;
1193		1270
1194	case 3:	1271	case 3:
1195	prepare_cede (&ta);	1272	prepare_cede (aTHX_ &ta);
1196	break;	1273	break;
1197		1274
1198	case 4:	1275	case 4:
1199	if (!prepare_cede_notself (&ta))	1276	if (!prepare_cede_notself (aTHX_ &ta))
1200	XSRETURN_EMPTY;	1277	XSRETURN_EMPTY;
1201		1278
1202	break;	1279	break;
1203	}	1280	}
1204		1281
1205	BARRIER;	1282	BARRIER;
1206	TRANSFER (ta);	1283	TRANSFER (ta);
		1284
		1285	if (GIMME_V != G_VOID && ta.next != ta.prev)
		1286	XSRETURN_YES;
1207	}	1287	}
1208		1288
1209	bool	1289	bool
1210	_destroy (SV *coro_sv)	1290	_destroy (SV *coro_sv)
1211	CODE:	1291	CODE:
1212	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1292	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1213	OUTPUT:	1293	OUTPUT:
1214	RETVAL	1294	RETVAL
1215		1295
1216	void	1296	void
1217	_exit (code)	1297	_exit (code)
1218	int code	1298	int code
1219	PROTOTYPE: $	1299	PROTOTYPE: $
1220	CODE:	1300	CODE:
1221	_exit (code);	1301	_exit (code);
		1302
		1303	int
		1304	cctx_stacksize (int new_stacksize = 0)
		1305	CODE:
		1306	RETVAL = coro_stacksize;
		1307	if (new_stacksize)
		1308	coro_stacksize = new_stacksize;
		1309	OUTPUT:
		1310	RETVAL
1222		1311
1223	int	1312	int
1224	cctx_count ()	1313	cctx_count ()
1225	CODE:	1314	CODE:
1226	RETVAL = cctx_count;	1315	RETVAL = cctx_count;

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Comparing Coro/Coro/State.xs (file contents): Revision 1.133 by root, Thu Jan 4 20:14:19 2007 UTC vs. Revision 1.149 by root, Sat Apr 14 15:06:05 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.133 by root, Thu Jan 4 20:14:19 2007 UTC vs.
Revision 1.149 by root, Sat Apr 14 15:06:05 2007 UTC