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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.136 by root, Fri Jan 12 01:05:55 2007 UTC vs.
Revision 1.157 by root, Fri Sep 21 02:01:13 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. */
…		…
121	I32 laststype;	126	I32 laststype;
122	int laststatval;	127	int laststatval;
123	Stat_t statcache;	128	Stat_t statcache;
124	};	129	};
125		130
		131	static size_t coro_stacksize = CORO_STACKSIZE;
126	static struct CoroAPI coroapi;	132	static struct CoroAPI coroapi;
127	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;
128	static HV coro_state_stash, coro_stash;	135	static HV coro_state_stash, coro_stash;
129	static SV coro_mortal; / will be freed after next transfer */	136	static SV coro_mortal; / will be freed after next transfer */
130		137
131	static struct coro_cctx *cctx_first;	138	static struct coro_cctx *cctx_first;
132	static int cctx_count, cctx_idle;	139	static int cctx_count, cctx_idle;
…		…
135	typedef struct coro_cctx {	142	typedef struct coro_cctx {
136	struct coro_cctx *next;	143	struct coro_cctx *next;
137		144
138	/* the stack */	145	/* the stack */
139	void *sptr;	146	void *sptr;
140	long ssize; /* positive == mmap, otherwise malloc */	147	size_t ssize;
141		148
142	/* cpu state */	149	/* cpu state */
143	void idle_sp; / sp of top-level transfer/schedule/cede call */	150	void idle_sp; / sp of top-level transfer/schedule/cede call */
144	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 */
145	JMPENV *top_env;	152	JMPENV *top_env;
146	coro_context cctx;	153	coro_context cctx;
147		154
148	int inuse;
149
150	#if USE_VALGRIND	155	#if CORO_USE_VALGRIND
151	int valgrind_id;	156	int valgrind_id;
152	#endif	157	#endif
		158	char inuse, mapped;
153	} coro_cctx;	159	} coro_cctx;
154		160
155	enum {	161	enum {
156	CF_RUNNING = 0x0001, /* coroutine is running */	162	CF_RUNNING = 0x0001, /* coroutine is running */
157	CF_READY = 0x0002, /* coroutine is ready */	163	CF_READY = 0x0002, /* coroutine is ready */
…		…
172		178
173	/* optionally saved, might be zero */	179	/* optionally saved, might be zero */
174	AV defav; / @_ */	180	AV defav; / @_ */
175	SV defsv; / $_ */	181	SV defsv; / $_ */
176	SV errsv; / $@ */	182	SV errsv; / $@ */
		183	GV deffh; / default filehandle */
177	SV irssv; / $/ */	184	SV irssv; / $/ */
178	SV irssv_sv; / real $/ cache */	185	SV irssv_sv; / real $/ cache */
179		186
180	#define VAR(name,type) type name;	187	#define VAR(name,type) type name;
181	# include "state.h"	188	# include "state.h"
182	#undef VAR	189	#undef VAR
183		190
184	/* coro process data */	191	/* coro process data */
185	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 */
186	};	197	};
187		198
188	typedef struct coro *Coro__State;	199	typedef struct coro *Coro__State;
189	typedef struct coro *Coro__State_or_hashref;	200	typedef struct coro *Coro__State_or_hashref;
190		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 *coro_first;
		216
		217	/ lowlevel stuff ********************************************************/
		218
191	static AV *	219	static AV *
192	coro_clone_padlist (CV *cv)	220	coro_clone_padlist (pTHX_ CV *cv)
193	{	221	{
194	AV *padlist = CvPADLIST (cv);	222	AV *padlist = CvPADLIST (cv);
195	AV newpadlist, newpad;	223	AV newpadlist, newpad;
196		224
197	newpadlist = newAV ();	225	newpadlist = newAV ();
…		…
209		237
210	return newpadlist;	238	return newpadlist;
211	}	239	}
212		240
213	static void	241	static void
214	free_padlist (AV *padlist)	242	free_padlist (pTHX_ AV *padlist)
215	{	243	{
216	/* may be during global destruction */	244	/* may be during global destruction */
217	if (SvREFCNT (padlist))	245	if (SvREFCNT (padlist))
218	{	246	{
219	I32 i = AvFILLp (padlist);	247	I32 i = AvFILLp (padlist);
…		…
240	AV *padlist;	268	AV *padlist;
241	AV av = (AV )mg->mg_obj;	269	AV av = (AV )mg->mg_obj;
242		270
243	/* casting is fun. */	271	/* casting is fun. */
244	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	272	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
245	free_padlist (padlist);	273	free_padlist (aTHX_ padlist);
246		274
247	SvREFCNT_dec (av);	275	SvREFCNT_dec (av);
248		276
249	return 0;	277	return 0;
250	}	278	}
…		…
260	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	288	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
261	: 0	289	: 0
262		290
263	/* the next two functions merely cache the padlists */	291	/* the next two functions merely cache the padlists */
264	static void	292	static void
265	get_padlist (CV *cv)	293	get_padlist (pTHX_ CV *cv)
266	{	294	{
267	MAGIC *mg = CORO_MAGIC (cv);	295	MAGIC *mg = CORO_MAGIC (cv);
268	AV *av;	296	AV *av;
269		297
270	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	298	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
271	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	299	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
272	else	300	else
273	{	301	{
274	#if PREFER_PERL_FUNCTIONS	302	#if CORO_PREFER_PERL_FUNCTIONS
275	/* this is probably cleaner, but also slower? */	303	/* this is probably cleaner, but also slower? */
276	CV *cp = Perl_cv_clone (cv);	304	CV *cp = Perl_cv_clone (cv);
277	CvPADLIST (cv) = CvPADLIST (cp);	305	CvPADLIST (cv) = CvPADLIST (cp);
278	CvPADLIST (cp) = 0;	306	CvPADLIST (cp) = 0;
279	SvREFCNT_dec (cp);	307	SvREFCNT_dec (cp);
280	#else	308	#else
281	CvPADLIST (cv) = coro_clone_padlist (cv);	309	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
282	#endif	310	#endif
283	}	311	}
284	}	312	}
285		313
286	static void	314	static void
287	put_padlist (CV *cv)	315	put_padlist (pTHX_ CV *cv)
288	{	316	{
289	MAGIC *mg = CORO_MAGIC (cv);	317	MAGIC *mg = CORO_MAGIC (cv);
290	AV *av;	318	AV *av;
291		319
292	if (!mg)	320	if (!mg)
…		…
303	av_extend (av, AvMAX (av) + 1);	331	av_extend (av, AvMAX (av) + 1);
304		332
305	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	333	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
306	}	334	}
307		335
		336	/ load & save, init *****************************************************/
		337
308	#define SB do {	338	#define SB do {
309	#define SE } while (0)	339	#define SE } while (0)
310		340
311	#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
312		342
313	static void	343	static void
314	load_perl (Coro__State c)	344	load_perl (pTHX_ Coro__State c)
315	{	345	{
316	#define VAR(name,type) PL_ ## name = c->name;	346	#define VAR(name,type) PL_ ## name = c->name;
317	# include "state.h"	347	# include "state.h"
318	#undef VAR	348	#undef VAR
319		349
320	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	350	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
321	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	351	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
322	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
323	if (c->irssv)	355	if (c->irssv)
324	{	356	{
325	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))	357	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		358	{
326	SvREFCNT_dec (c->irssv);	359	SvREFCNT_dec (c->irssv);
		360	c->irssv = 0;
		361	}
327	else	362	else
328	{	363	{
329	REPLACE_SV (PL_rs, c->irssv);	364	REPLACE_SV (PL_rs, c->irssv);
330	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);	365	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
331	sv_setsv (c->irssv_sv, PL_rs);	366	sv_setsv (c->irssv_sv, PL_rs);
…		…
337	CV *cv;	372	CV *cv;
338		373
339	/* now do the ugly restore mess */	374	/* now do the ugly restore mess */
340	while ((cv = (CV *)POPs))	375	while ((cv = (CV *)POPs))
341	{	376	{
342	put_padlist (cv); /* mark this padlist as available */	377	put_padlist (aTHX_ cv); /* mark this padlist as available */
343	CvDEPTH (cv) = PTR2IV (POPs);	378	CvDEPTH (cv) = PTR2IV (POPs);
344	CvPADLIST (cv) = (AV *)POPs;	379	CvPADLIST (cv) = (AV *)POPs;
345	}	380	}
346		381
347	PUTBACK;	382	PUTBACK;
348	}	383	}
349	}	384	}
350		385
351	static void	386	static void
352	save_perl (Coro__State c)	387	save_perl (pTHX_ Coro__State c)
353	{	388	{
354	{	389	{
355	dSP;	390	dSP;
356	I32 cxix = cxstack_ix;	391	I32 cxix = cxstack_ix;
357	PERL_CONTEXT *ccstk = cxstack;	392	PERL_CONTEXT *ccstk = cxstack;
…		…
360	/*	395	/*
361	* the worst thing you can imagine happens first - we have to save	396	* the worst thing you can imagine happens first - we have to save
362	* (and reinitialize) all cv's in the whole callchain :(	397	* (and reinitialize) all cv's in the whole callchain :(
363	*/	398	*/
364		399
365	EXTEND (SP, 3 + 1);
366	PUSHs (Nullsv);	400	XPUSHs (Nullsv);
367	/* this loop was inspired by pp_caller */	401	/* this loop was inspired by pp_caller */
368	for (;;)	402	for (;;)
369	{	403	{
370	while (cxix >= 0)	404	while (cxix >= 0)
371	{	405	{
372	PERL_CONTEXT *cx = &ccstk[cxix--];	406	PERL_CONTEXT *cx = &ccstk[cxix--];
373		407
374	if (CxTYPE (cx) == CXt_SUB)	408	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
375	{	409	{
376	CV *cv = cx->blk_sub.cv;	410	CV *cv = cx->blk_sub.cv;
377		411
378	if (CvDEPTH (cv))	412	if (CvDEPTH (cv))
379	{	413	{
…		…
381	PUSHs ((SV *)CvPADLIST (cv));	415	PUSHs ((SV *)CvPADLIST (cv));
382	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	416	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
383	PUSHs ((SV *)cv);	417	PUSHs ((SV *)cv);
384		418
385	CvDEPTH (cv) = 0;	419	CvDEPTH (cv) = 0;
386	get_padlist (cv);	420	get_padlist (aTHX_ cv);
387	}	421	}
388	}	422	}
389	}	423	}
390		424
391	if (top_si->si_type == PERLSI_MAIN)	425	if (top_si->si_type == PERLSI_MAIN)
…		…
400	}	434	}
401		435
402	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	436	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
403	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	437	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
404	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	438	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		439	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;
405	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	440	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
406		441
407	#define VAR(name,type)c->name = PL_ ## name;	442	#define VAR(name,type)c->name = PL_ ## name;
408	# include "state.h"	443	# include "state.h"
409	#undef VAR	444	#undef VAR
…		…
413	* allocate various perl stacks. This is an exact copy	448	* allocate various perl stacks. This is an exact copy
414	* of perl.c:init_stacks, except that it uses less memory	449	* of perl.c:init_stacks, except that it uses less memory
415	* on the (sometimes correct) assumption that coroutines do	450	* on the (sometimes correct) assumption that coroutines do
416	* not usually need a lot of stackspace.	451	* not usually need a lot of stackspace.
417	*/	452	*/
418	#if PREFER_PERL_FUNCTIONS	453	#if CORO_PREFER_PERL_FUNCTIONS
419	# define coro_init_stacks init_stacks	454	# define coro_init_stacks init_stacks
420	#else	455	#else
421	static void	456	static void
422	coro_init_stacks ()	457	coro_init_stacks (pTHX)
423	{	458	{
424	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	459	PL_curstackinfo = new_stackinfo(64, 6);
425	PL_curstackinfo->si_type = PERLSI_MAIN;	460	PL_curstackinfo->si_type = PERLSI_MAIN;
426	PL_curstack = PL_curstackinfo->si_stack;	461	PL_curstack = PL_curstackinfo->si_stack;
427	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	462	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
428		463
429	PL_stack_base = AvARRAY(PL_curstack);	464	PL_stack_base = AvARRAY(PL_curstack);
430	PL_stack_sp = PL_stack_base;	465	PL_stack_sp = PL_stack_base;
431	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	466	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
432		467
433	New(50,PL_tmps_stack,128,SV*);	468	New(50,PL_tmps_stack,64,SV*);
434	PL_tmps_floor = -1;	469	PL_tmps_floor = -1;
435	PL_tmps_ix = -1;	470	PL_tmps_ix = -1;
436	PL_tmps_max = 128;	471	PL_tmps_max = 64;
437		472
438	New(54,PL_markstack,32,I32);	473	New(54,PL_markstack,16,I32);
439	PL_markstack_ptr = PL_markstack;	474	PL_markstack_ptr = PL_markstack;
440	PL_markstack_max = PL_markstack + 32;	475	PL_markstack_max = PL_markstack + 16;
441		476
442	#ifdef SET_MARK_OFFSET	477	#ifdef SET_MARK_OFFSET
443	SET_MARK_OFFSET;	478	SET_MARK_OFFSET;
444	#endif	479	#endif
445		480
446	New(54,PL_scopestack,32,I32);	481	New(54,PL_scopestack,16,I32);
447	PL_scopestack_ix = 0;	482	PL_scopestack_ix = 0;
448	PL_scopestack_max = 32;	483	PL_scopestack_max = 16;
449		484
450	New(54,PL_savestack,64,ANY);	485	New(54,PL_savestack,64,ANY);
451	PL_savestack_ix = 0;	486	PL_savestack_ix = 0;
452	PL_savestack_max = 64;	487	PL_savestack_max = 64;
453		488
454	#if !PERL_VERSION_ATLEAST (5,9,0)	489	#if !PERL_VERSION_ATLEAST (5,9,0)
455	New(54,PL_retstack,16,OP*);	490	New(54,PL_retstack,4,OP*);
456	PL_retstack_ix = 0;	491	PL_retstack_ix = 0;
457	PL_retstack_max = 16;	492	PL_retstack_max = 4;
458	#endif	493	#endif
459	}	494	}
460	#endif	495	#endif
461		496
462	/*	497	/*
463	* destroy the stacks, the callchain etc...	498	* destroy the stacks, the callchain etc...
464	*/	499	*/
465	static void	500	static void
466	coro_destroy_stacks ()	501	coro_destroy_stacks (pTHX)
467	{	502	{
468	if (!IN_DESTRUCT)	503	if (!IN_DESTRUCT)
469	{	504	{
470	/* restore all saved variables and stuff */	505	/* restore all saved variables and stuff */
471	LEAVE_SCOPE (0);	506	LEAVE_SCOPE (0);
…		…
504	#if !PERL_VERSION_ATLEAST (5,9,0)	539	#if !PERL_VERSION_ATLEAST (5,9,0)
505	Safefree (PL_retstack);	540	Safefree (PL_retstack);
506	#endif	541	#endif
507	}	542	}
508		543
		544	static size_t
		545	coro_rss (struct coro *coro)
		546	{
		547	size_t rss = sizeof (coro);
		548
		549	if (coro->mainstack)
		550	{
		551	if (coro->flags & CF_RUNNING)
		552	{
		553	#define VAR(name,type)coro->name = PL_ ## name;
		554	# include "state.h"
		555	#undef VAR
		556	}
		557
		558	rss += sizeof (coro->curstackinfo);
		559	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		560	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		561	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		562	rss += coro->tmps_max * sizeof (SV *);
		563	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		564	rss += coro->scopestack_max * sizeof (I32);
		565	rss += coro->savestack_max * sizeof (ANY);
		566
		567	#if !PERL_VERSION_ATLEAST (5,9,0)
		568	rss += coro->retstack_max * sizeof (OP *);
		569	#endif
		570	}
		571
		572	return rss;
		573	}
		574
		575	/ coroutine stack handling **********************************************/
		576
509	static void	577	static void
510	setup_coro (struct coro *coro)	578	setup_coro (pTHX_ struct coro *coro)
511	{	579	{
512	/*	580	/*
513	* emulate part of the perl startup here.	581	* emulate part of the perl startup here.
514	*/	582	*/
515
516	coro_init_stacks ();	583	coro_init_stacks (aTHX);
517		584
518	PL_curcop = &PL_compiling;	585	PL_curcop = &PL_compiling;
519	PL_in_eval = EVAL_NULL;	586	PL_in_eval = EVAL_NULL;
		587	PL_comppad = 0;
520	PL_curpm = 0;	588	PL_curpm = 0;
521	PL_localizing = 0;	589	PL_localizing = 0;
522	PL_dirty = 0;	590	PL_dirty = 0;
523	PL_restartop = 0;	591	PL_restartop = 0;
524		592
…		…
532	Zero (&myop, 1, LOGOP);	600	Zero (&myop, 1, LOGOP);
533	myop.op_next = Nullop;	601	myop.op_next = Nullop;
534	myop.op_flags = OPf_WANT_VOID;	602	myop.op_flags = OPf_WANT_VOID;
535		603
536	PUSHMARK (SP);	604	PUSHMARK (SP);
537	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	605	XPUSHs (av_shift (GvAV (PL_defgv)));
538	PUTBACK;	606	PUTBACK;
539	PL_op = (OP *)&myop;	607	PL_op = (OP *)&myop;
540	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	608	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
541	SPAGAIN;	609	SPAGAIN;
542	}	610	}
543		611
544	ENTER; /* necessary e.g. for dounwind */	612	ENTER; /* necessary e.g. for dounwind */
545	}	613	}
546		614
547	static void	615	static void
548	free_coro_mortal ()	616	free_coro_mortal (pTHX)
549	{	617	{
550	if (coro_mortal)	618	if (coro_mortal)
551	{	619	{
552	SvREFCNT_dec (coro_mortal);	620	SvREFCNT_dec (coro_mortal);
553	coro_mortal = 0;	621	coro_mortal = 0;
554	}	622	}
555	}	623	}
556		624
557	/* inject a fake call to Coro::State::_cctx_init into the execution */	625	/* inject a fake call to Coro::State::_cctx_init into the execution */
		626	/* _cctx_init should be careful, as it could be called at almost any time */
		627	/* during execution of a perl program */
558	static void NOINLINE	628	static void NOINLINE
559	prepare_cctx (coro_cctx *cctx)	629	prepare_cctx (pTHX_ coro_cctx *cctx)
560	{	630	{
561	dSP;	631	dSP;
562	LOGOP myop;	632	LOGOP myop;
563		633
564	Zero (&myop, 1, LOGOP);	634	Zero (&myop, 1, LOGOP);
…		…
573	PL_op = (OP *)&myop;	643	PL_op = (OP *)&myop;
574	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	644	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
575	SPAGAIN;	645	SPAGAIN;
576	}	646	}
577		647
		648	/*
		649	* this is a _very_ stripped down perl interpreter ;)
		650	*/
578	static void	651	static void
579	coro_run (void *arg)	652	coro_run (void *arg)
580	{	653	{
		654	dTHX;
		655
581	/* coro_run is the alternative tail of transfer(), so unlock here. */	656	/* coro_run is the alternative tail of transfer(), so unlock here. */
582	UNLOCK;	657	UNLOCK;
583		658
584	/*
585	* this is a _very_ stripped down perl interpreter ;)
586	*/
587	PL_top_env = &PL_start_env;	659	PL_top_env = &PL_start_env;
588		660
589	/* inject call to cctx_init */	661	/* inject a fake subroutine call to cctx_init */
590	prepare_cctx ((coro_cctx *)arg);	662	prepare_cctx (aTHX_ (coro_cctx *)arg);
591		663
592	/* somebody will hit me for both perl_run and PL_restartop */	664	/* somebody or something will hit me for both perl_run and PL_restartop */
593	PL_restartop = PL_op;	665	PL_restartop = PL_op;
594	perl_run (PL_curinterp);	666	perl_run (PL_curinterp);
595		667
596	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	668	/*
597	abort ();	669	* If perl-run returns we assume exit() was being called or the coro
		670	* fell off the end, which seems to be the only valid (non-bug)
		671	* reason for perl_run to return. We try to exit by jumping to the
		672	* bootstrap-time "top" top_env, as we cannot restore the "main"
		673	* coroutine as Coro has no such concept
		674	*/
		675	PL_top_env = main_top_env;
		676	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
598	}	677	}
599		678
600	static coro_cctx *	679	static coro_cctx *
601	cctx_new ()	680	cctx_new ()
602	{	681	{
603	coro_cctx *cctx;	682	coro_cctx *cctx;
		683	void *stack_start;
		684	size_t stack_size;
604		685
605	++cctx_count;	686	++cctx_count;
606		687
607	Newz (0, cctx, 1, coro_cctx);	688	Newz (0, cctx, 1, coro_cctx);
608		689
609	#if HAVE_MMAP	690	#if HAVE_MMAP
610		691
611	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	692	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
612	/* mmap supposedly does allocate-on-write for us */	693	/* mmap supposedly does allocate-on-write for us */
613	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	694	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
614		695
615	if (cctx->sptr == (void *)-1)	696	if (cctx->sptr != (void *)-1)
616	{
617	perror ("FATAL: unable to mmap stack for coroutine");
618	_exit (EXIT_FAILURE);
619	}	697	{
620
621	# if STACKGUARD	698	# if CORO_STACKGUARD
622	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	699	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
623	# endif	700	# endif
		701	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		702	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		703	cctx->mapped = 1;
		704	}
		705	else
		706	#endif
		707	{
		708	cctx->ssize = coro_stacksize * (long)sizeof (long);
		709	New (0, cctx->sptr, coro_stacksize, long);
624		710
625	#else
626
627	cctx->ssize = STACKSIZE * (long)sizeof (long);
628	New (0, cctx->sptr, STACKSIZE, long);
629
630	if (!cctx->sptr)	711	if (!cctx->sptr)
631	{	712	{
632	perror ("FATAL: unable to malloc stack for coroutine");	713	perror ("FATAL: unable to allocate stack for coroutine");
633	_exit (EXIT_FAILURE);	714	_exit (EXIT_FAILURE);
634	}	715	}
635		716
636	#endif	717	stack_start = cctx->sptr;
		718	stack_size = cctx->ssize;
		719	}
637		720
638	#if USE_VALGRIND	721	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
639	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
640	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
641	cctx->ssize + (char *)cctx->sptr
642	);
643	#endif
644
645	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	722	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
646		723
647	return cctx;	724	return cctx;
648	}	725	}
649		726
650	static void	727	static void
…		…
653	if (!cctx)	730	if (!cctx)
654	return;	731	return;
655		732
656	--cctx_count;	733	--cctx_count;
657		734
658	#if USE_VALGRIND	735	#if CORO_USE_VALGRIND
659	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	736	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
660	#endif	737	#endif
661		738
662	#if HAVE_MMAP	739	#if HAVE_MMAP
		740	if (cctx->mapped)
663	munmap (cctx->sptr, cctx->ssize);	741	munmap (cctx->sptr, cctx->ssize);
664	#else	742	else
		743	#endif
665	Safefree (cctx->sptr);	744	Safefree (cctx->sptr);
666	#endif
667		745
668	Safefree (cctx);	746	Safefree (cctx);
669	}	747	}
670		748
671	static coro_cctx *	749	static coro_cctx *
672	cctx_get ()	750	cctx_get (pTHX)
673	{	751	{
674	coro_cctx *cctx;
675
676	if (cctx_first)	752	while (cctx_first)
677	{	753	{
678	cctx = cctx_first;	754	coro_cctx *cctx = cctx_first;
679	cctx_first = cctx->next;	755	cctx_first = cctx->next;
680	--cctx_idle;	756	--cctx_idle;
		757
		758	if (cctx->ssize >= coro_stacksize)
		759	return cctx;
		760
		761	cctx_destroy (cctx);
681	}	762	}
682	else	763
683	{
684	cctx = cctx_new ();
685	PL_op = PL_op->op_next;	764	PL_op = PL_op->op_next;
686	}
687
688	return cctx;	765	return cctx_new ();
689	}	766	}
690		767
691	static void	768	static void
692	cctx_put (coro_cctx *cctx)	769	cctx_put (coro_cctx *cctx)
693	{	770	{
…		…
705	++cctx_idle;	782	++cctx_idle;
706	cctx->next = cctx_first;	783	cctx->next = cctx_first;
707	cctx_first = cctx;	784	cctx_first = cctx;
708	}	785	}
709		786
		787	/ coroutine switching ***************************************************/
		788
710	/* never call directly, always through the coro_state_transfer global variable */	789	/* never call directly, always through the coro_state_transfer global variable */
711	static void NOINLINE	790	static void NOINLINE
712	transfer (struct coro prev, struct coro next)	791	transfer (pTHX_ struct coro prev, struct coro next)
713	{	792	{
714	dSTACKLEVEL;	793	dSTACKLEVEL;
715		794
716	/* sometimes transfer is only called to set idle_sp */	795	/* sometimes transfer is only called to set idle_sp */
717	if (!next)	796	if (!next)
…		…
750	if (next->flags & CF_NEW)	829	if (next->flags & CF_NEW)
751	{	830	{
752	/* need to start coroutine */	831	/* need to start coroutine */
753	next->flags &= ~CF_NEW;	832	next->flags &= ~CF_NEW;
754	/* first get rid of the old state */	833	/* first get rid of the old state */
755	save_perl (prev);	834	save_perl (aTHX_ prev);
756	/* setup coroutine call */	835	/* setup coroutine call */
757	setup_coro (next);	836	setup_coro (aTHX_ next);
758	/* need a new stack */	837	/* need a new stack */
759	assert (!next->cctx);	838	assert (!next->cctx);
760	}	839	}
761	else	840	else
762	{	841	{
763	/* coroutine already started */	842	/* coroutine already started */
764	save_perl (prev);	843	save_perl (aTHX_ prev);
765	load_perl (next);	844	load_perl (aTHX_ next);
766	}	845	}
767		846
768	prev__cctx = prev->cctx;	847	prev__cctx = prev->cctx;
769		848
770	/* possibly "free" the cctx */	849	/* possibly "free" the cctx */
…		…
779	prev__cctx->inuse = 0;	858	prev__cctx->inuse = 0;
780	}	859	}
781		860
782	if (!next->cctx)	861	if (!next->cctx)
783	{	862	{
784	next->cctx = cctx_get ();	863	next->cctx = cctx_get (aTHX);
785	assert (!next->cctx->inuse);	864	assert (!next->cctx->inuse);
786	next->cctx->inuse = 1;	865	next->cctx->inuse = 1;
787	}	866	}
788		867
789	if (prev__cctx != next->cctx)	868	if (prev__cctx != next->cctx)
…		…
791	prev__cctx->top_env = PL_top_env;	870	prev__cctx->top_env = PL_top_env;
792	PL_top_env = next->cctx->top_env;	871	PL_top_env = next->cctx->top_env;
793	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	872	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
794	}	873	}
795		874
796	free_coro_mortal ();	875	free_coro_mortal (aTHX);
797	UNLOCK;	876	UNLOCK;
798	}	877	}
799	}	878	}
800		879
801	struct transfer_args	880	struct transfer_args
802	{	881	{
803	struct coro prev, next;	882	struct coro prev, next;
804	};	883	};
805		884
806	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	885	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		886
		887	/ high level stuff ******************************************************/
807		888
808	static int	889	static int
809	coro_state_destroy (struct coro *coro)	890	coro_state_destroy (pTHX_ struct coro *coro)
810	{	891	{
811	if (coro->flags & CF_DESTROYED)	892	if (coro->flags & CF_DESTROYED)
812	return 0;	893	return 0;
813		894
814	coro->flags \|= CF_DESTROYED;	895	coro->flags \|= CF_DESTROYED;
		896
		897	if (coro->flags & CF_READY)
		898	{
		899	/* reduce nready, as destroying a ready coro effectively unreadies it */
		900	/* alternative: look through all ready queues and remove the coro */
		901	LOCK;
		902	--coro_nready;
		903	UNLOCK;
		904	}
		905	else
		906	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
815		907
816	if (coro->mainstack && coro->mainstack != main_mainstack)	908	if (coro->mainstack && coro->mainstack != main_mainstack)
817	{	909	{
		910	struct coro temp;
		911
818	assert (!(coro->flags & CF_RUNNING));	912	assert (!(coro->flags & CF_RUNNING));
819		913
820	struct coro temp;
821	Zero (&temp, 1, struct coro);	914	Zero (&temp, 1, struct coro);
822	temp.save = CORO_SAVE_ALL;	915	temp.save = CORO_SAVE_ALL;
823		916
824	if (coro->flags & CF_RUNNING)	917	if (coro->flags & CF_RUNNING)
825	croak ("FATAL: tried to destroy currently running coroutine");	918	croak ("FATAL: tried to destroy currently running coroutine");
826		919
827	save_perl (&temp);	920	save_perl (aTHX_ &temp);
828	load_perl (coro);	921	load_perl (aTHX_ coro);
829		922
830	coro_destroy_stacks ();	923	coro_destroy_stacks (aTHX);
831		924
832	load_perl (&temp); /* this will get rid of defsv etc.. */	925	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
833		926
834	coro->mainstack = 0;	927	coro->mainstack = 0;
835	}	928	}
836		929
837	cctx_destroy (coro->cctx);	930	cctx_destroy (coro->cctx);
838	SvREFCNT_dec (coro->args);	931	SvREFCNT_dec (coro->args);
839		932
		933	if (coro->next) coro->next->prev = coro->prev;
		934	if (coro->prev) coro->prev->next = coro->next;
		935	if (coro == coro_first) coro_first = coro->next;
		936
840	return 1;	937	return 1;
841	}	938	}
842		939
843	static int	940	static int
844	coro_state_free (pTHX_ SV sv, MAGIC mg)	941	coro_state_free (pTHX_ SV sv, MAGIC mg)
845	{	942	{
846	struct coro coro = (struct coro )mg->mg_ptr;	943	struct coro coro = (struct coro )mg->mg_ptr;
847	mg->mg_ptr = 0;	944	mg->mg_ptr = 0;
848		945
		946	coro->hv = 0;
		947
849	if (--coro->refcnt < 0)	948	if (--coro->refcnt < 0)
850	{	949	{
851	coro_state_destroy (coro);	950	coro_state_destroy (aTHX_ coro);
852	Safefree (coro);	951	Safefree (coro);
853	}	952	}
854		953
855	return 0;	954	return 0;
856	}	955	}
…		…
875	# define MGf_DUP 0	974	# define MGf_DUP 0
876	#endif	975	#endif
877	};	976	};
878		977
879	static struct coro *	978	static struct coro *
880	SvSTATE (SV *coro)	979	SvSTATE_ (pTHX_ SV *coro)
881	{	980	{
882	HV *stash;	981	HV *stash;
883	MAGIC *mg;	982	MAGIC *mg;
884		983
885	if (SvROK (coro))	984	if (SvROK (coro))
…		…
891	/* very slow, but rare, check */	990	/* very slow, but rare, check */
892	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	991	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
893	croak ("Coro::State object required");	992	croak ("Coro::State object required");
894	}	993	}
895		994
896	mg = SvMAGIC (coro);	995	mg = CORO_MAGIC (coro);
897	assert (mg->mg_type == PERL_MAGIC_ext);
898	return (struct coro *)mg->mg_ptr;	996	return (struct coro *)mg->mg_ptr;
899	}	997	}
900		998
		999	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		1000
901	static void	1001	static void
902	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	1002	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
903	{	1003	{
904	ta->prev = SvSTATE (prev_sv);	1004	ta->prev = SvSTATE (prev_sv);
905	ta->next = SvSTATE (next_sv);	1005	ta->next = SvSTATE (next_sv);
906	}	1006	}
907		1007
908	static void	1008	static void
909	api_transfer (SV prev_sv, SV next_sv)	1009	api_transfer (SV prev_sv, SV next_sv)
910	{	1010	{
		1011	dTHX;
911	struct transfer_args ta;	1012	struct transfer_args ta;
912		1013
913	prepare_transfer (&ta, prev_sv, next_sv);	1014	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
914	TRANSFER (ta);	1015	TRANSFER (ta);
915	}	1016	}
916		1017
917	static int	1018	static int
918	api_save (SV *coro_sv, int new_save)	1019	api_save (SV *coro_sv, int new_save)
919	{	1020	{
		1021	dTHX;
920	struct coro *coro = SvSTATE (coro_sv);	1022	struct coro *coro = SvSTATE (coro_sv);
921	int old_save = coro->save;	1023	int old_save = coro->save;
922		1024
923	if (new_save >= 0)	1025	if (new_save >= 0)
924	coro->save = new_save;	1026	coro->save = new_save;
…		…
926	return old_save;	1028	return old_save;
927	}	1029	}
928		1030
929	/ Coro ******************************************************************/	1031	/ Coro ******************************************************************/
930		1032
931	#define PRIO_MAX 3
932	#define PRIO_HIGH 1
933	#define PRIO_NORMAL 0
934	#define PRIO_LOW -1
935	#define PRIO_IDLE -3
936	#define PRIO_MIN -4
937
938	/* for Coro.pm */
939	static SV *coro_current;
940	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
941	static int coro_nready;
942
943	static void	1033	static void
944	coro_enq (SV *coro_sv)	1034	coro_enq (pTHX_ SV *coro_sv)
945	{	1035	{
946	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1036	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
947	coro_nready++;
948	}	1037	}
949		1038
950	static SV *	1039	static SV *
951	coro_deq (int min_prio)	1040	coro_deq (pTHX_ int min_prio)
952	{	1041	{
953	int prio = PRIO_MAX - PRIO_MIN;	1042	int prio = PRIO_MAX - PRIO_MIN;
954		1043
955	min_prio -= PRIO_MIN;	1044	min_prio -= PRIO_MIN;
956	if (min_prio < 0)	1045	if (min_prio < 0)
957	min_prio = 0;	1046	min_prio = 0;
958		1047
959	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1048	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
960	if (AvFILLp (coro_ready [prio]) >= 0)	1049	if (AvFILLp (coro_ready [prio]) >= 0)
961	{
962	coro_nready--;
963	return av_shift (coro_ready [prio]);	1050	return av_shift (coro_ready [prio]);
964	}
965		1051
966	return 0;	1052	return 0;
967	}	1053	}
968		1054
969	static int	1055	static int
970	api_ready (SV *coro_sv)	1056	api_ready (SV *coro_sv)
971	{	1057	{
		1058	dTHX;
972	struct coro *coro;	1059	struct coro *coro;
973		1060
974	if (SvROK (coro_sv))	1061	if (SvROK (coro_sv))
975	coro_sv = SvRV (coro_sv);	1062	coro_sv = SvRV (coro_sv);
976		1063
…		…
980	return 0;	1067	return 0;
981		1068
982	coro->flags \|= CF_READY;	1069	coro->flags \|= CF_READY;
983		1070
984	LOCK;	1071	LOCK;
985	coro_enq (SvREFCNT_inc (coro_sv));	1072	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
		1073	++coro_nready;
986	UNLOCK;	1074	UNLOCK;
987		1075
988	return 1;	1076	return 1;
989	}	1077	}
990		1078
991	static int	1079	static int
992	api_is_ready (SV *coro_sv)	1080	api_is_ready (SV *coro_sv)
993	{	1081	{
		1082	dTHX;
994	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1083	return !!(SvSTATE (coro_sv)->flags & CF_READY);
995	}	1084	}
996		1085
997	static void	1086	static void
998	prepare_schedule (struct transfer_args *ta)	1087	prepare_schedule (pTHX_ struct transfer_args *ta)
999	{	1088	{
1000	SV prev_sv, next_sv;	1089	SV prev_sv, next_sv;
1001		1090
1002	for (;;)	1091	for (;;)
1003	{	1092	{
1004	LOCK;	1093	LOCK;
1005	next_sv = coro_deq (PRIO_MIN);	1094	next_sv = coro_deq (aTHX_ PRIO_MIN);
1006	UNLOCK;
1007		1095
1008	/* nothing to schedule: call the idle handler */	1096	/* nothing to schedule: call the idle handler */
1009	if (!next_sv)	1097	if (!next_sv)
1010	{	1098	{
1011	dSP;	1099	dSP;
		1100	UNLOCK;
1012		1101
1013	ENTER;	1102	ENTER;
1014	SAVETMPS;	1103	SAVETMPS;
1015		1104
1016	PUSHMARK (SP);	1105	PUSHMARK (SP);
…		…
1025	ta->next = SvSTATE (next_sv);	1114	ta->next = SvSTATE (next_sv);
1026		1115
1027	/* cannot transfer to destroyed coros, skip and look for next */	1116	/* cannot transfer to destroyed coros, skip and look for next */
1028	if (ta->next->flags & CF_DESTROYED)	1117	if (ta->next->flags & CF_DESTROYED)
1029	{	1118	{
		1119	UNLOCK;
1030	SvREFCNT_dec (next_sv);	1120	SvREFCNT_dec (next_sv);
		1121	/* coro_nready is already taken care of by destroy */
1031	continue;	1122	continue;
1032	}	1123	}
1033		1124
		1125	--coro_nready;
		1126	UNLOCK;
1034	break;	1127	break;
1035	}	1128	}
1036		1129
1037	/* free this only after the transfer */	1130	/* free this only after the transfer */
1038	prev_sv = SvRV (coro_current);	1131	prev_sv = SvRV (coro_current);
…		…
1041		1134
1042	assert (ta->next->flags & CF_READY);	1135	assert (ta->next->flags & CF_READY);
1043	ta->next->flags &= ~CF_READY;	1136	ta->next->flags &= ~CF_READY;
1044		1137
1045	LOCK;	1138	LOCK;
1046	free_coro_mortal ();	1139	free_coro_mortal (aTHX);
1047	coro_mortal = prev_sv;	1140	coro_mortal = prev_sv;
1048	UNLOCK;	1141	UNLOCK;
1049	}	1142	}
1050		1143
1051	static void	1144	static void
1052	prepare_cede (struct transfer_args *ta)	1145	prepare_cede (pTHX_ struct transfer_args *ta)
1053	{	1146	{
1054	api_ready (coro_current);	1147	api_ready (coro_current);
1055	prepare_schedule (ta);	1148	prepare_schedule (aTHX_ ta);
1056	}	1149	}
1057		1150
1058	static int	1151	static int
1059	prepare_cede_notself (struct transfer_args *ta)	1152	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1060	{	1153	{
1061	if (coro_nready)	1154	if (coro_nready)
1062	{	1155	{
1063	SV *prev = SvRV (coro_current);	1156	SV *prev = SvRV (coro_current);
1064	prepare_schedule (ta);	1157	prepare_schedule (aTHX_ ta);
1065	api_ready (prev);	1158	api_ready (prev);
1066	return 1;	1159	return 1;
1067	}	1160	}
1068	else	1161	else
1069	return 0;	1162	return 0;
1070	}	1163	}
1071		1164
1072	static void	1165	static void
1073	api_schedule (void)	1166	api_schedule (void)
1074	{	1167	{
		1168	dTHX;
1075	struct transfer_args ta;	1169	struct transfer_args ta;
1076		1170
1077	prepare_schedule (&ta);	1171	prepare_schedule (aTHX_ &ta);
1078	TRANSFER (ta);	1172	TRANSFER (ta);
1079	}	1173	}
1080		1174
1081	static int	1175	static int
1082	api_cede (void)	1176	api_cede (void)
1083	{	1177	{
		1178	dTHX;
1084	struct transfer_args ta;	1179	struct transfer_args ta;
1085		1180
1086	prepare_cede (&ta);	1181	prepare_cede (aTHX_ &ta);
1087		1182
1088	if (ta.prev != ta.next)	1183	if (ta.prev != ta.next)
1089	{	1184	{
1090	TRANSFER (ta);	1185	TRANSFER (ta);
1091	return 1;	1186	return 1;
…		…
1095	}	1190	}
1096		1191
1097	static int	1192	static int
1098	api_cede_notself (void)	1193	api_cede_notself (void)
1099	{	1194	{
		1195	dTHX;
1100	struct transfer_args ta;	1196	struct transfer_args ta;
1101		1197
1102	if (prepare_cede_notself (&ta))	1198	if (prepare_cede_notself (aTHX_ &ta))
1103	{	1199	{
1104	TRANSFER (ta);	1200	TRANSFER (ta);
1105	return 1;	1201	return 1;
1106	}	1202	}
1107	else	1203	else
…		…
1123		1219
1124	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1220	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1125	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1221	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1126	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));	1222	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1127	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));	1223	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1224	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
		1225	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1128	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1226	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1129		1227
1130	main_mainstack = PL_mainstack;	1228	main_mainstack = PL_mainstack;
		1229	main_top_env = PL_top_env;
		1230
		1231	while (main_top_env->je_prev)
		1232	main_top_env = main_top_env->je_prev;
1131		1233
1132	coroapi.ver = CORO_API_VERSION;	1234	coroapi.ver = CORO_API_VERSION;
1133	coroapi.transfer = api_transfer;	1235	coroapi.transfer = api_transfer;
1134		1236
1135	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1237	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1143	HV *hv;	1245	HV *hv;
1144	int i;	1246	int i;
1145		1247
1146	Newz (0, coro, 1, struct coro);	1248	Newz (0, coro, 1, struct coro);
1147	coro->args = newAV ();	1249	coro->args = newAV ();
1148	coro->save = CORO_SAVE_ALL;	1250	coro->save = CORO_SAVE_DEF;
1149	coro->flags = CF_NEW;	1251	coro->flags = CF_NEW;
1150		1252
		1253	if (coro_first) coro_first->prev = coro;
		1254	coro->next = coro_first;
		1255	coro_first = coro;
		1256
1151	hv = newHV ();	1257	coro->hv = hv = newHV ();
1152	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1258	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1153	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1259	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1154		1260
1155	for (i = 1; i < items; i++)	1261	for (i = 1; i < items; i++)
1156	av_push (coro->args, newSVsv (ST (i)));	1262	av_push (coro->args, newSVsv (ST (i)));
…		…
1160		1266
1161	int	1267	int
1162	save (SV *coro, int new_save = -1)	1268	save (SV *coro, int new_save = -1)
1163	CODE:	1269	CODE:
1164	RETVAL = api_save (coro, new_save);	1270	RETVAL = api_save (coro, new_save);
		1271	OUTPUT:
		1272	RETVAL
		1273
		1274	int
		1275	save_also (SV *coro_sv, int save_also)
		1276	CODE:
		1277	{
		1278	struct coro *coro = SvSTATE (coro_sv);
		1279	RETVAL = coro->save;
		1280	coro->save \|= save_also;
		1281	}
1165	OUTPUT:	1282	OUTPUT:
1166	RETVAL	1283	RETVAL
1167		1284
1168	void	1285	void
1169	_set_stacklevel (...)	1286	_set_stacklevel (...)
…		…
1185		1302
1186	case 1:	1303	case 1:
1187	if (items != 2)	1304	if (items != 2)
1188	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1305	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1189		1306
1190	prepare_transfer (&ta, ST (0), ST (1));	1307	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1191	break;	1308	break;
1192		1309
1193	case 2:	1310	case 2:
1194	prepare_schedule (&ta);	1311	prepare_schedule (aTHX_ &ta);
1195	break;	1312	break;
1196		1313
1197	case 3:	1314	case 3:
1198	prepare_cede (&ta);	1315	prepare_cede (aTHX_ &ta);
1199	break;	1316	break;
1200		1317
1201	case 4:	1318	case 4:
1202	if (!prepare_cede_notself (&ta))	1319	if (!prepare_cede_notself (aTHX_ &ta))
1203	XSRETURN_EMPTY;	1320	XSRETURN_EMPTY;
1204		1321
1205	break;	1322	break;
1206	}	1323	}
1207		1324
…		…
1213	}	1330	}
1214		1331
1215	bool	1332	bool
1216	_destroy (SV *coro_sv)	1333	_destroy (SV *coro_sv)
1217	CODE:	1334	CODE:
1218	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1335	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1219	OUTPUT:	1336	OUTPUT:
1220	RETVAL	1337	RETVAL
1221		1338
1222	void	1339	void
1223	_exit (code)	1340	_exit (code)
…		…
1225	PROTOTYPE: $	1342	PROTOTYPE: $
1226	CODE:	1343	CODE:
1227	_exit (code);	1344	_exit (code);
1228		1345
1229	int	1346	int
		1347	cctx_stacksize (int new_stacksize = 0)
		1348	CODE:
		1349	RETVAL = coro_stacksize;
		1350	if (new_stacksize)
		1351	coro_stacksize = new_stacksize;
		1352	OUTPUT:
		1353	RETVAL
		1354
		1355	int
1230	cctx_count ()	1356	cctx_count ()
1231	CODE:	1357	CODE:
1232	RETVAL = cctx_count;	1358	RETVAL = cctx_count;
1233	OUTPUT:	1359	OUTPUT:
1234	RETVAL	1360	RETVAL
…		…
1237	cctx_idle ()	1363	cctx_idle ()
1238	CODE:	1364	CODE:
1239	RETVAL = cctx_idle;	1365	RETVAL = cctx_idle;
1240	OUTPUT:	1366	OUTPUT:
1241	RETVAL	1367	RETVAL
		1368
		1369	void
		1370	list ()
		1371	PPCODE:
		1372	{
		1373	struct coro *coro;
		1374	for (coro = coro_first; coro; coro = coro->next)
		1375	if (coro->hv)
		1376	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1377	}
		1378
		1379	void
		1380	_eval (Coro::State coro, SV *coderef)
		1381	CODE:
		1382	{
		1383	if (coro->mainstack)
		1384	{
		1385	struct coro temp;
		1386	Zero (&temp, 1, struct coro);
		1387	temp.save = CORO_SAVE_ALL;
		1388
		1389	if (!(coro->flags & CF_RUNNING))
		1390	{
		1391	save_perl (aTHX_ &temp);
		1392	load_perl (aTHX_ coro);
		1393	}
		1394
		1395	{
		1396	dSP;
		1397	ENTER;
		1398	SAVETMPS;
		1399	PUSHMARK (SP);
		1400	PUTBACK;
		1401	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1402	SPAGAIN;
		1403	FREETMPS;
		1404	LEAVE;
		1405	PUTBACK;
		1406	}
		1407
		1408	if (!(coro->flags & CF_RUNNING))
		1409	{
		1410	save_perl (aTHX_ coro);
		1411	load_perl (aTHX_ &temp);
		1412	}
		1413	}
		1414	}
		1415
		1416	SV *
		1417	is_ready (Coro::State coro)
		1418	PROTOTYPE: $
		1419	ALIAS:
		1420	is_ready = CF_READY
		1421	is_running = CF_RUNNING
		1422	is_new = CF_NEW
		1423	is_destroyed = CF_DESTROYED
		1424	CODE:
		1425	RETVAL = boolSV (coro->flags & ix);
		1426	OUTPUT:
		1427	RETVAL
		1428
		1429	IV
		1430	rss (Coro::State coro)
		1431	PROTOTYPE: $
		1432	CODE:
		1433	RETVAL = coro_rss (coro);
		1434	OUTPUT:
		1435	RETVAL
		1436
1242		1437
1243	MODULE = Coro::State PACKAGE = Coro	1438	MODULE = Coro::State PACKAGE = Coro
1244		1439
1245	BOOT:	1440	BOOT:
1246	{	1441	{
…		…
1314	CODE:	1509	CODE:
1315	RETVAL = boolSV (api_ready (self));	1510	RETVAL = boolSV (api_ready (self));
1316	OUTPUT:	1511	OUTPUT:
1317	RETVAL	1512	RETVAL
1318		1513
1319	SV *
1320	is_ready (SV *self)
1321	PROTOTYPE: $
1322	CODE:
1323	RETVAL = boolSV (api_is_ready (self));
1324	OUTPUT:
1325	RETVAL
1326
1327	int	1514	int
1328	nready (...)	1515	nready (...)
1329	PROTOTYPE:	1516	PROTOTYPE:
1330	CODE:	1517	CODE:
1331	RETVAL = coro_nready;	1518	RETVAL = coro_nready;

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Comparing Coro/Coro/State.xs (file contents): Revision 1.136 by root, Fri Jan 12 01:05:55 2007 UTC vs. Revision 1.157 by root, Fri Sep 21 02:01:13 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.136 by root, Fri Jan 12 01:05:55 2007 UTC vs.
Revision 1.157 by root, Fri Sep 21 02:01:13 2007 UTC