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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.138 by root, Sun Jan 14 20:49:45 2007 UTC vs.
Revision 1.158 by root, Fri Sep 21 02:23:48 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 macros try to return the current stack pointer, in an as
89	* to the current C stack pointer. Its property is that it changes with each call	94	* portable way as possible. */
90	* and should be unique. */
91	#define dSTACKLEVEL int stacklevel	95	#define dSTACKLEVEL volatile char stacklevel
92	#define STACKLEVEL ((void *)&stacklevel)	96	#define STACKLEVEL ((void *)&stacklevel)
93		97
94	#define IN_DESTRUCT (PL_main_cv == Nullcv)	98	#define IN_DESTRUCT (PL_main_cv == Nullcv)
95		99
96	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
121	I32 laststype;	125	I32 laststype;
122	int laststatval;	126	int laststatval;
123	Stat_t statcache;	127	Stat_t statcache;
124	};	128	};
125		129
		130	static size_t coro_stacksize = CORO_STACKSIZE;
126	static struct CoroAPI coroapi;	131	static struct CoroAPI coroapi;
127	static AV main_mainstack; / used to differentiate between $main and others */	132	static AV main_mainstack; / used to differentiate between $main and others */
		133	static JMPENV *main_top_env;
128	static HV coro_state_stash, coro_stash;	134	static HV coro_state_stash, coro_stash;
129	static SV coro_mortal; / will be freed after next transfer */	135	static SV coro_mortal; / will be freed after next transfer */
130		136
131	static struct coro_cctx *cctx_first;	137	static struct coro_cctx *cctx_first;
132	static int cctx_count, cctx_idle;	138	static int cctx_count, cctx_idle;
…		…
135	typedef struct coro_cctx {	141	typedef struct coro_cctx {
136	struct coro_cctx *next;	142	struct coro_cctx *next;
137		143
138	/* the stack */	144	/* the stack */
139	void *sptr;	145	void *sptr;
140	long ssize; /* positive == mmap, otherwise malloc */	146	size_t ssize;
141		147
142	/* cpu state */	148	/* cpu state */
143	void idle_sp; / sp of top-level transfer/schedule/cede call */	149	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 */	150	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
145	JMPENV *top_env;	151	JMPENV *top_env;
146	coro_context cctx;	152	coro_context cctx;
147		153
148	int inuse;
149
150	#if USE_VALGRIND	154	#if CORO_USE_VALGRIND
151	int valgrind_id;	155	int valgrind_id;
152	#endif	156	#endif
		157	char inuse, mapped;
153	} coro_cctx;	158	} coro_cctx;
154		159
155	enum {	160	enum {
156	CF_RUNNING = 0x0001, /* coroutine is running */	161	CF_RUNNING = 0x0001, /* coroutine is running */
157	CF_READY = 0x0002, /* coroutine is ready */	162	CF_READY = 0x0002, /* coroutine is ready */
…		…
172		177
173	/* optionally saved, might be zero */	178	/* optionally saved, might be zero */
174	AV defav; / @_ */	179	AV defav; / @_ */
175	SV defsv; / $_ */	180	SV defsv; / $_ */
176	SV errsv; / $@ */	181	SV errsv; / $@ */
		182	GV deffh; / default filehandle */
177	SV irssv; / $/ */	183	SV irssv; / $/ */
178	SV irssv_sv; / real $/ cache */	184	SV irssv_sv; / real $/ cache */
179		185
180	#define VAR(name,type) type name;	186	#define VAR(name,type) type name;
181	# include "state.h"	187	# include "state.h"
182	#undef VAR	188	#undef VAR
183		189
184	/* coro process data */	190	/* coro process data */
185	int prio;	191	int prio;
		192
		193	/* linked list */
		194	struct coro next, prev;
		195	HV hv; / the perl hash associated with this coro, if any */
186	};	196	};
187		197
188	typedef struct coro *Coro__State;	198	typedef struct coro *Coro__State;
189	typedef struct coro *Coro__State_or_hashref;	199	typedef struct coro *Coro__State_or_hashref;
190		200
…		…
199		209
200	/* for Coro.pm */	210	/* for Coro.pm */
201	static SV *coro_current;	211	static SV *coro_current;
202	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	212	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
203	static int coro_nready;	213	static int coro_nready;
		214	static struct coro *coro_first;
204		215
205	/ lowlevel stuff ********************************************************/	216	/ lowlevel stuff ********************************************************/
206		217
207	static AV *	218	static AV *
208	coro_clone_padlist (CV *cv)	219	coro_clone_padlist (pTHX_ CV *cv)
209	{	220	{
210	AV *padlist = CvPADLIST (cv);	221	AV *padlist = CvPADLIST (cv);
211	AV newpadlist, newpad;	222	AV newpadlist, newpad;
212		223
213	newpadlist = newAV ();	224	newpadlist = newAV ();
…		…
225		236
226	return newpadlist;	237	return newpadlist;
227	}	238	}
228		239
229	static void	240	static void
230	free_padlist (AV *padlist)	241	free_padlist (pTHX_ AV *padlist)
231	{	242	{
232	/* may be during global destruction */	243	/* may be during global destruction */
233	if (SvREFCNT (padlist))	244	if (SvREFCNT (padlist))
234	{	245	{
235	I32 i = AvFILLp (padlist);	246	I32 i = AvFILLp (padlist);
…		…
256	AV *padlist;	267	AV *padlist;
257	AV av = (AV )mg->mg_obj;	268	AV av = (AV )mg->mg_obj;
258		269
259	/* casting is fun. */	270	/* casting is fun. */
260	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	271	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
261	free_padlist (padlist);	272	free_padlist (aTHX_ padlist);
262		273
263	SvREFCNT_dec (av);	274	SvREFCNT_dec (av);
264		275
265	return 0;	276	return 0;
266	}	277	}
…		…
276	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	287	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
277	: 0	288	: 0
278		289
279	/* the next two functions merely cache the padlists */	290	/* the next two functions merely cache the padlists */
280	static void	291	static void
281	get_padlist (CV *cv)	292	get_padlist (pTHX_ CV *cv)
282	{	293	{
283	MAGIC *mg = CORO_MAGIC (cv);	294	MAGIC *mg = CORO_MAGIC (cv);
284	AV *av;	295	AV *av;
285		296
286	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	297	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
287	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	298	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
288	else	299	else
289	{	300	{
290	#if PREFER_PERL_FUNCTIONS	301	#if CORO_PREFER_PERL_FUNCTIONS
291	/* this is probably cleaner, but also slower? */	302	/* this is probably cleaner, but also slower? */
292	CV *cp = Perl_cv_clone (cv);	303	CV *cp = Perl_cv_clone (cv);
293	CvPADLIST (cv) = CvPADLIST (cp);	304	CvPADLIST (cv) = CvPADLIST (cp);
294	CvPADLIST (cp) = 0;	305	CvPADLIST (cp) = 0;
295	SvREFCNT_dec (cp);	306	SvREFCNT_dec (cp);
296	#else	307	#else
297	CvPADLIST (cv) = coro_clone_padlist (cv);	308	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
298	#endif	309	#endif
299	}	310	}
300	}	311	}
301		312
302	static void	313	static void
303	put_padlist (CV *cv)	314	put_padlist (pTHX_ CV *cv)
304	{	315	{
305	MAGIC *mg = CORO_MAGIC (cv);	316	MAGIC *mg = CORO_MAGIC (cv);
306	AV *av;	317	AV *av;
307		318
308	if (!mg)	319	if (!mg)
…		…
327	#define SE } while (0)	338	#define SE } while (0)
328		339
329	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	340	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
330		341
331	static void	342	static void
332	load_perl (Coro__State c)	343	load_perl (pTHX_ Coro__State c)
333	{	344	{
334	#define VAR(name,type) PL_ ## name = c->name;	345	#define VAR(name,type) PL_ ## name = c->name;
335	# include "state.h"	346	# include "state.h"
336	#undef VAR	347	#undef VAR
337		348
338	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	349	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
339	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	350	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
340	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	351	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		352	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
		353
341	if (c->irssv)	354	if (c->irssv)
342	{	355	{
343	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))	356	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		357	{
344	SvREFCNT_dec (c->irssv);	358	SvREFCNT_dec (c->irssv);
		359	c->irssv = 0;
		360	}
345	else	361	else
346	{	362	{
347	REPLACE_SV (PL_rs, c->irssv);	363	REPLACE_SV (PL_rs, c->irssv);
348	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);	364	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
349	sv_setsv (c->irssv_sv, PL_rs);	365	sv_setsv (c->irssv_sv, PL_rs);
…		…
355	CV *cv;	371	CV *cv;
356		372
357	/* now do the ugly restore mess */	373	/* now do the ugly restore mess */
358	while ((cv = (CV *)POPs))	374	while ((cv = (CV *)POPs))
359	{	375	{
360	put_padlist (cv); /* mark this padlist as available */	376	put_padlist (aTHX_ cv); /* mark this padlist as available */
361	CvDEPTH (cv) = PTR2IV (POPs);	377	CvDEPTH (cv) = PTR2IV (POPs);
362	CvPADLIST (cv) = (AV *)POPs;	378	CvPADLIST (cv) = (AV *)POPs;
363	}	379	}
364		380
365	PUTBACK;	381	PUTBACK;
366	}	382	}
367	}	383	}
368		384
369	static void	385	static void
370	save_perl (Coro__State c)	386	save_perl (pTHX_ Coro__State c)
371	{	387	{
372	{	388	{
373	dSP;	389	dSP;
374	I32 cxix = cxstack_ix;	390	I32 cxix = cxstack_ix;
375	PERL_CONTEXT *ccstk = cxstack;	391	PERL_CONTEXT *ccstk = cxstack;
…		…
378	/*	394	/*
379	* the worst thing you can imagine happens first - we have to save	395	* the worst thing you can imagine happens first - we have to save
380	* (and reinitialize) all cv's in the whole callchain :(	396	* (and reinitialize) all cv's in the whole callchain :(
381	*/	397	*/
382		398
383	EXTEND (SP, 3 + 1);
384	PUSHs (Nullsv);	399	XPUSHs (Nullsv);
385	/* this loop was inspired by pp_caller */	400	/* this loop was inspired by pp_caller */
386	for (;;)	401	for (;;)
387	{	402	{
388	while (cxix >= 0)	403	while (cxix >= 0)
389	{	404	{
390	PERL_CONTEXT *cx = &ccstk[cxix--];	405	PERL_CONTEXT *cx = &ccstk[cxix--];
391		406
392	if (CxTYPE (cx) == CXt_SUB)	407	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
393	{	408	{
394	CV *cv = cx->blk_sub.cv;	409	CV *cv = cx->blk_sub.cv;
395		410
396	if (CvDEPTH (cv))	411	if (CvDEPTH (cv))
397	{	412	{
…		…
399	PUSHs ((SV *)CvPADLIST (cv));	414	PUSHs ((SV *)CvPADLIST (cv));
400	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	415	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
401	PUSHs ((SV *)cv);	416	PUSHs ((SV *)cv);
402		417
403	CvDEPTH (cv) = 0;	418	CvDEPTH (cv) = 0;
404	get_padlist (cv);	419	get_padlist (aTHX_ cv);
405	}	420	}
406	}	421	}
407	}	422	}
408		423
409	if (top_si->si_type == PERLSI_MAIN)	424	if (top_si->si_type == PERLSI_MAIN)
410	break;	425	break;
411		426
412	top_si = top_si->si_prev;	427	top_si = top_si->si_prev;
413	ccstk = top_si->si_cxstack;	428	ccstk = top_si->si_cxstack;
414	cxix = top_si->si_cxix;	429	cxix = top_si->si_cxix;
415	}	430	}
416		431
417	PUTBACK;	432	PUTBACK;
418	}	433	}
419		434
420	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	435	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
421	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	436	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
422	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	437	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		438	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;
423	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	439	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
424		440
425	#define VAR(name,type)c->name = PL_ ## name;	441	#define VAR(name,type)c->name = PL_ ## name;
426	# include "state.h"	442	# include "state.h"
427	#undef VAR	443	#undef VAR
…		…
431	* allocate various perl stacks. This is an exact copy	447	* allocate various perl stacks. This is an exact copy
432	* of perl.c:init_stacks, except that it uses less memory	448	* of perl.c:init_stacks, except that it uses less memory
433	* on the (sometimes correct) assumption that coroutines do	449	* on the (sometimes correct) assumption that coroutines do
434	* not usually need a lot of stackspace.	450	* not usually need a lot of stackspace.
435	*/	451	*/
436	#if PREFER_PERL_FUNCTIONS	452	#if CORO_PREFER_PERL_FUNCTIONS
437	# define coro_init_stacks init_stacks	453	# define coro_init_stacks init_stacks
438	#else	454	#else
439	static void	455	static void
440	coro_init_stacks ()	456	coro_init_stacks (pTHX)
441	{	457	{
442	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	458	PL_curstackinfo = new_stackinfo(64, 6);
443	PL_curstackinfo->si_type = PERLSI_MAIN;	459	PL_curstackinfo->si_type = PERLSI_MAIN;
444	PL_curstack = PL_curstackinfo->si_stack;	460	PL_curstack = PL_curstackinfo->si_stack;
445	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	461	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
446		462
447	PL_stack_base = AvARRAY(PL_curstack);	463	PL_stack_base = AvARRAY(PL_curstack);
448	PL_stack_sp = PL_stack_base;	464	PL_stack_sp = PL_stack_base;
449	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	465	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
450		466
451	New(50,PL_tmps_stack,128,SV*);	467	New(50,PL_tmps_stack,64,SV*);
452	PL_tmps_floor = -1;	468	PL_tmps_floor = -1;
453	PL_tmps_ix = -1;	469	PL_tmps_ix = -1;
454	PL_tmps_max = 128;	470	PL_tmps_max = 64;
455		471
456	New(54,PL_markstack,32,I32);	472	New(54,PL_markstack,16,I32);
457	PL_markstack_ptr = PL_markstack;	473	PL_markstack_ptr = PL_markstack;
458	PL_markstack_max = PL_markstack + 32;	474	PL_markstack_max = PL_markstack + 16;
459		475
460	#ifdef SET_MARK_OFFSET	476	#ifdef SET_MARK_OFFSET
461	SET_MARK_OFFSET;	477	SET_MARK_OFFSET;
462	#endif	478	#endif
463		479
464	New(54,PL_scopestack,32,I32);	480	New(54,PL_scopestack,16,I32);
465	PL_scopestack_ix = 0;	481	PL_scopestack_ix = 0;
466	PL_scopestack_max = 32;	482	PL_scopestack_max = 16;
467		483
468	New(54,PL_savestack,64,ANY);	484	New(54,PL_savestack,64,ANY);
469	PL_savestack_ix = 0;	485	PL_savestack_ix = 0;
470	PL_savestack_max = 64;	486	PL_savestack_max = 64;
471		487
472	#if !PERL_VERSION_ATLEAST (5,9,0)	488	#if !PERL_VERSION_ATLEAST (5,9,0)
473	New(54,PL_retstack,16,OP*);	489	New(54,PL_retstack,4,OP*);
474	PL_retstack_ix = 0;	490	PL_retstack_ix = 0;
475	PL_retstack_max = 16;	491	PL_retstack_max = 4;
476	#endif	492	#endif
477	}	493	}
478	#endif	494	#endif
479		495
480	/*	496	/*
481	* destroy the stacks, the callchain etc...	497	* destroy the stacks, the callchain etc...
482	*/	498	*/
483	static void	499	static void
484	coro_destroy_stacks ()	500	coro_destroy_stacks (pTHX)
485	{	501	{
486	if (!IN_DESTRUCT)	502	if (!IN_DESTRUCT)
487	{	503	{
488	/* restore all saved variables and stuff */	504	/* restore all saved variables and stuff */
489	LEAVE_SCOPE (0);	505	LEAVE_SCOPE (0);
…		…
522	#if !PERL_VERSION_ATLEAST (5,9,0)	538	#if !PERL_VERSION_ATLEAST (5,9,0)
523	Safefree (PL_retstack);	539	Safefree (PL_retstack);
524	#endif	540	#endif
525	}	541	}
526		542
		543	static size_t
		544	coro_rss (struct coro *coro)
		545	{
		546	size_t rss = sizeof (coro);
		547
		548	if (coro->mainstack)
		549	{
		550	if (coro->flags & CF_RUNNING)
		551	{
		552	#define VAR(name,type)coro->name = PL_ ## name;
		553	# include "state.h"
		554	#undef VAR
		555	}
		556
		557	rss += sizeof (coro->curstackinfo);
		558	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		559	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		560	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		561	rss += coro->tmps_max * sizeof (SV *);
		562	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		563	rss += coro->scopestack_max * sizeof (I32);
		564	rss += coro->savestack_max * sizeof (ANY);
		565
		566	#if !PERL_VERSION_ATLEAST (5,9,0)
		567	rss += coro->retstack_max * sizeof (OP *);
		568	#endif
		569	}
		570
		571	return rss;
		572	}
		573
527	/ coroutine stack handling **********************************************/	574	/ coroutine stack handling **********************************************/
528		575
529	static void	576	static void
530	setup_coro (struct coro *coro)	577	setup_coro (pTHX_ struct coro *coro)
531	{	578	{
532	/*	579	/*
533	* emulate part of the perl startup here.	580	* emulate part of the perl startup here.
534	*/	581	*/
535
536	coro_init_stacks ();	582	coro_init_stacks (aTHX);
537		583
538	PL_curcop = &PL_compiling;	584	PL_curcop = &PL_compiling;
539	PL_in_eval = EVAL_NULL;	585	PL_in_eval = EVAL_NULL;
		586	PL_comppad = 0;
540	PL_curpm = 0;	587	PL_curpm = 0;
541	PL_localizing = 0;	588	PL_localizing = 0;
542	PL_dirty = 0;	589	PL_dirty = 0;
543	PL_restartop = 0;	590	PL_restartop = 0;
544		591
…		…
552	Zero (&myop, 1, LOGOP);	599	Zero (&myop, 1, LOGOP);
553	myop.op_next = Nullop;	600	myop.op_next = Nullop;
554	myop.op_flags = OPf_WANT_VOID;	601	myop.op_flags = OPf_WANT_VOID;
555		602
556	PUSHMARK (SP);	603	PUSHMARK (SP);
557	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	604	XPUSHs (av_shift (GvAV (PL_defgv)));
558	PUTBACK;	605	PUTBACK;
559	PL_op = (OP *)&myop;	606	PL_op = (OP *)&myop;
560	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	607	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
561	SPAGAIN;	608	SPAGAIN;
562	}	609	}
563		610
564	ENTER; /* necessary e.g. for dounwind */	611	ENTER; /* necessary e.g. for dounwind */
565	}	612	}
566		613
567	static void	614	static void
568	free_coro_mortal ()	615	free_coro_mortal (pTHX)
569	{	616	{
570	if (coro_mortal)	617	if (coro_mortal)
571	{	618	{
572	SvREFCNT_dec (coro_mortal);	619	SvREFCNT_dec (coro_mortal);
573	coro_mortal = 0;	620	coro_mortal = 0;
574	}	621	}
575	}	622	}
576		623
577	/* inject a fake call to Coro::State::_cctx_init into the execution */	624	/* inject a fake call to Coro::State::_cctx_init into the execution */
		625	/* _cctx_init should be careful, as it could be called at almost any time */
		626	/* during execution of a perl program */
578	static void NOINLINE	627	static void NOINLINE
579	prepare_cctx (coro_cctx *cctx)	628	prepare_cctx (pTHX_ coro_cctx *cctx)
580	{	629	{
581	dSP;	630	dSP;
582	LOGOP myop;	631	LOGOP myop;
583		632
584	Zero (&myop, 1, LOGOP);	633	Zero (&myop, 1, LOGOP);
…		…
593	PL_op = (OP *)&myop;	642	PL_op = (OP *)&myop;
594	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	643	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
595	SPAGAIN;	644	SPAGAIN;
596	}	645	}
597		646
		647	/*
		648	* this is a _very_ stripped down perl interpreter ;)
		649	*/
598	static void	650	static void
599	coro_run (void *arg)	651	coro_run (void *arg)
600	{	652	{
		653	dTHX;
		654
601	/* coro_run is the alternative tail of transfer(), so unlock here. */	655	/* coro_run is the alternative tail of transfer(), so unlock here. */
602	UNLOCK;	656	UNLOCK;
603		657
604	/*
605	* this is a _very_ stripped down perl interpreter ;)
606	*/
607	PL_top_env = &PL_start_env;	658	PL_top_env = &PL_start_env;
608		659
609	/* inject call to cctx_init */	660	/* inject a fake subroutine call to cctx_init */
610	prepare_cctx ((coro_cctx *)arg);	661	prepare_cctx (aTHX_ (coro_cctx *)arg);
611		662
612	/* somebody will hit me for both perl_run and PL_restartop */	663	/* somebody or something will hit me for both perl_run and PL_restartop */
613	PL_restartop = PL_op;	664	PL_restartop = PL_op;
614	perl_run (PL_curinterp);	665	perl_run (PL_curinterp);
615		666
616	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	667	/*
617	abort ();	668	* If perl-run returns we assume exit() was being called or the coro
		669	* fell off the end, which seems to be the only valid (non-bug)
		670	* reason for perl_run to return. We try to exit by jumping to the
		671	* bootstrap-time "top" top_env, as we cannot restore the "main"
		672	* coroutine as Coro has no such concept
		673	*/
		674	PL_top_env = main_top_env;
		675	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
618	}	676	}
619		677
620	static coro_cctx *	678	static coro_cctx *
621	cctx_new ()	679	cctx_new ()
622	{	680	{
623	coro_cctx *cctx;	681	coro_cctx *cctx;
		682	void *stack_start;
		683	size_t stack_size;
624		684
625	++cctx_count;	685	++cctx_count;
626		686
627	Newz (0, cctx, 1, coro_cctx);	687	Newz (0, cctx, 1, coro_cctx);
628		688
629	#if HAVE_MMAP	689	#if HAVE_MMAP
630		690
631	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	691	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
632	/* mmap supposedly does allocate-on-write for us */	692	/* mmap supposedly does allocate-on-write for us */
633	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	693	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
634		694
635	if (cctx->sptr == (void *)-1)	695	if (cctx->sptr != (void *)-1)
636	{
637	perror ("FATAL: unable to mmap stack for coroutine");
638	_exit (EXIT_FAILURE);
639	}	696	{
640
641	# if STACKGUARD	697	# if CORO_STACKGUARD
642	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	698	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
643	# endif	699	# endif
		700	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		701	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		702	cctx->mapped = 1;
		703	}
		704	else
		705	#endif
		706	{
		707	cctx->ssize = coro_stacksize * (long)sizeof (long);
		708	New (0, cctx->sptr, coro_stacksize, long);
644		709
645	#else
646
647	cctx->ssize = STACKSIZE * (long)sizeof (long);
648	New (0, cctx->sptr, STACKSIZE, long);
649
650	if (!cctx->sptr)	710	if (!cctx->sptr)
651	{	711	{
652	perror ("FATAL: unable to malloc stack for coroutine");	712	perror ("FATAL: unable to allocate stack for coroutine");
653	_exit (EXIT_FAILURE);	713	_exit (EXIT_FAILURE);
654	}	714	}
655		715
656	#endif	716	stack_start = cctx->sptr;
		717	stack_size = cctx->ssize;
		718	}
657		719
658	#if USE_VALGRIND	720	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
659	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
660	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
661	cctx->ssize + (char *)cctx->sptr
662	);
663	#endif
664
665	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	721	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
666		722
667	return cctx;	723	return cctx;
668	}	724	}
669		725
670	static void	726	static void
…		…
673	if (!cctx)	729	if (!cctx)
674	return;	730	return;
675		731
676	--cctx_count;	732	--cctx_count;
677		733
678	#if USE_VALGRIND	734	#if CORO_USE_VALGRIND
679	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	735	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
680	#endif	736	#endif
681		737
682	#if HAVE_MMAP	738	#if HAVE_MMAP
		739	if (cctx->mapped)
683	munmap (cctx->sptr, cctx->ssize);	740	munmap (cctx->sptr, cctx->ssize);
684	#else	741	else
		742	#endif
685	Safefree (cctx->sptr);	743	Safefree (cctx->sptr);
686	#endif
687		744
688	Safefree (cctx);	745	Safefree (cctx);
689	}	746	}
690		747
691	static coro_cctx *	748	static coro_cctx *
692	cctx_get ()	749	cctx_get (pTHX)
693	{	750	{
694	coro_cctx *cctx;
695
696	if (cctx_first)	751	while (cctx_first)
697	{	752	{
698	cctx = cctx_first;	753	coro_cctx *cctx = cctx_first;
699	cctx_first = cctx->next;	754	cctx_first = cctx->next;
700	--cctx_idle;	755	--cctx_idle;
		756
		757	if (cctx->ssize >= coro_stacksize)
		758	return cctx;
		759
		760	cctx_destroy (cctx);
701	}	761	}
702	else	762
703	{
704	cctx = cctx_new ();
705	PL_op = PL_op->op_next;	763	PL_op = PL_op->op_next;
706	}
707
708	return cctx;	764	return cctx_new ();
709	}	765	}
710		766
711	static void	767	static void
712	cctx_put (coro_cctx *cctx)	768	cctx_put (coro_cctx *cctx)
713	{	769	{
…		…
729		785
730	/ coroutine switching ***************************************************/	786	/ coroutine switching ***************************************************/
731		787
732	/* never call directly, always through the coro_state_transfer global variable */	788	/* never call directly, always through the coro_state_transfer global variable */
733	static void NOINLINE	789	static void NOINLINE
734	transfer (struct coro prev, struct coro next)	790	transfer (pTHX_ struct coro prev, struct coro next)
735	{	791	{
736	dSTACKLEVEL;	792	dSTACKLEVEL;
737		793
738	/* sometimes transfer is only called to set idle_sp */	794	/* sometimes transfer is only called to set idle_sp */
739	if (!next)	795	if (!next)
…		…
772	if (next->flags & CF_NEW)	828	if (next->flags & CF_NEW)
773	{	829	{
774	/* need to start coroutine */	830	/* need to start coroutine */
775	next->flags &= ~CF_NEW;	831	next->flags &= ~CF_NEW;
776	/* first get rid of the old state */	832	/* first get rid of the old state */
777	save_perl (prev);	833	save_perl (aTHX_ prev);
778	/* setup coroutine call */	834	/* setup coroutine call */
779	setup_coro (next);	835	setup_coro (aTHX_ next);
780	/* need a new stack */	836	/* need a new stack */
781	assert (!next->cctx);	837	assert (!next->cctx);
782	}	838	}
783	else	839	else
784	{	840	{
785	/* coroutine already started */	841	/* coroutine already started */
786	save_perl (prev);	842	save_perl (aTHX_ prev);
787	load_perl (next);	843	load_perl (aTHX_ next);
788	}	844	}
789		845
790	prev__cctx = prev->cctx;	846	prev__cctx = prev->cctx;
791		847
792	/* possibly "free" the cctx */	848	/* possibly "free" the cctx */
…		…
801	prev__cctx->inuse = 0;	857	prev__cctx->inuse = 0;
802	}	858	}
803		859
804	if (!next->cctx)	860	if (!next->cctx)
805	{	861	{
806	next->cctx = cctx_get ();	862	next->cctx = cctx_get (aTHX);
807	assert (!next->cctx->inuse);	863	assert (!next->cctx->inuse);
808	next->cctx->inuse = 1;	864	next->cctx->inuse = 1;
809	}	865	}
810		866
811	if (prev__cctx != next->cctx)	867	if (prev__cctx != next->cctx)
…		…
813	prev__cctx->top_env = PL_top_env;	869	prev__cctx->top_env = PL_top_env;
814	PL_top_env = next->cctx->top_env;	870	PL_top_env = next->cctx->top_env;
815	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	871	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
816	}	872	}
817		873
818	free_coro_mortal ();	874	free_coro_mortal (aTHX);
819	UNLOCK;	875	UNLOCK;
820	}	876	}
821	}	877	}
822		878
823	struct transfer_args	879	struct transfer_args
824	{	880	{
825	struct coro prev, next;	881	struct coro prev, next;
826	};	882	};
827		883
828	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	884	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
829		885
830	/ high level stuff ******************************************************/	886	/ high level stuff ******************************************************/
831		887
832	static int	888	static int
833	coro_state_destroy (struct coro *coro)	889	coro_state_destroy (pTHX_ struct coro *coro)
834	{	890	{
835	if (coro->flags & CF_DESTROYED)	891	if (coro->flags & CF_DESTROYED)
836	return 0;	892	return 0;
837		893
838	coro->flags \|= CF_DESTROYED;	894	coro->flags \|= CF_DESTROYED;
839		895
840	if (coro->flags & CF_READY)	896	if (coro->flags & CF_READY)
841	{	897	{
842	/* reduce nready, as destroying a ready coro effectively unreadies it */	898	/* reduce nready, as destroying a ready coro effectively unreadies it */
843	/* alternative: look through all ready queues and remove it */	899	/* alternative: look through all ready queues and remove the coro */
844	LOCK;	900	LOCK;
845	--coro_nready;	901	--coro_nready;
846	UNLOCK;	902	UNLOCK;
847	}	903	}
848	else	904	else
849	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */	905	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
850		906
851	if (coro->mainstack && coro->mainstack != main_mainstack)	907	if (coro->mainstack && coro->mainstack != main_mainstack)
852	{	908	{
		909	struct coro temp;
		910
853	assert (!(coro->flags & CF_RUNNING));	911	assert (!(coro->flags & CF_RUNNING));
854		912
855	struct coro temp;
856	Zero (&temp, 1, struct coro);	913	Zero (&temp, 1, struct coro);
857	temp.save = CORO_SAVE_ALL;	914	temp.save = CORO_SAVE_ALL;
858		915
859	if (coro->flags & CF_RUNNING)	916	if (coro->flags & CF_RUNNING)
860	croak ("FATAL: tried to destroy currently running coroutine");	917	croak ("FATAL: tried to destroy currently running coroutine");
861		918
862	save_perl (&temp);	919	save_perl (aTHX_ &temp);
863	load_perl (coro);	920	load_perl (aTHX_ coro);
864		921
865	coro_destroy_stacks ();	922	coro_destroy_stacks (aTHX);
866		923
867	load_perl (&temp); /* this will get rid of defsv etc.. */	924	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
868		925
869	coro->mainstack = 0;	926	coro->mainstack = 0;
870	}	927	}
871		928
872	cctx_destroy (coro->cctx);	929	cctx_destroy (coro->cctx);
873	SvREFCNT_dec (coro->args);	930	SvREFCNT_dec (coro->args);
874		931
		932	if (coro->next) coro->next->prev = coro->prev;
		933	if (coro->prev) coro->prev->next = coro->next;
		934	if (coro == coro_first) coro_first = coro->next;
		935
875	return 1;	936	return 1;
876	}	937	}
877		938
878	static int	939	static int
879	coro_state_free (pTHX_ SV sv, MAGIC mg)	940	coro_state_free (pTHX_ SV sv, MAGIC mg)
880	{	941	{
881	struct coro coro = (struct coro )mg->mg_ptr;	942	struct coro coro = (struct coro )mg->mg_ptr;
882	mg->mg_ptr = 0;	943	mg->mg_ptr = 0;
883		944
		945	coro->hv = 0;
		946
884	if (--coro->refcnt < 0)	947	if (--coro->refcnt < 0)
885	{	948	{
886	coro_state_destroy (coro);	949	coro_state_destroy (aTHX_ coro);
887	Safefree (coro);	950	Safefree (coro);
888	}	951	}
889		952
890	return 0;	953	return 0;
891	}	954	}
…		…
910	# define MGf_DUP 0	973	# define MGf_DUP 0
911	#endif	974	#endif
912	};	975	};
913		976
914	static struct coro *	977	static struct coro *
915	SvSTATE (SV *coro)	978	SvSTATE_ (pTHX_ SV *coro)
916	{	979	{
917	HV *stash;	980	HV *stash;
918	MAGIC *mg;	981	MAGIC *mg;
919		982
920	if (SvROK (coro))	983	if (SvROK (coro))
…		…
926	/* very slow, but rare, check */	989	/* very slow, but rare, check */
927	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	990	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
928	croak ("Coro::State object required");	991	croak ("Coro::State object required");
929	}	992	}
930		993
931	mg = SvMAGIC (coro);	994	mg = CORO_MAGIC (coro);
932	assert (mg->mg_type == PERL_MAGIC_ext);
933	return (struct coro *)mg->mg_ptr;	995	return (struct coro *)mg->mg_ptr;
934	}	996	}
935		997
		998	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		999
936	static void	1000	static void
937	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	1001	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
938	{	1002	{
939	ta->prev = SvSTATE (prev_sv);	1003	ta->prev = SvSTATE (prev_sv);
940	ta->next = SvSTATE (next_sv);	1004	ta->next = SvSTATE (next_sv);
941	}	1005	}
942		1006
943	static void	1007	static void
944	api_transfer (SV prev_sv, SV next_sv)	1008	api_transfer (SV prev_sv, SV next_sv)
945	{	1009	{
		1010	dTHX;
946	struct transfer_args ta;	1011	struct transfer_args ta;
947		1012
948	prepare_transfer (&ta, prev_sv, next_sv);	1013	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
949	TRANSFER (ta);	1014	TRANSFER (ta);
950	}	1015	}
951		1016
952	static int	1017	static int
953	api_save (SV *coro_sv, int new_save)	1018	api_save (SV *coro_sv, int new_save)
954	{	1019	{
		1020	dTHX;
955	struct coro *coro = SvSTATE (coro_sv);	1021	struct coro *coro = SvSTATE (coro_sv);
956	int old_save = coro->save;	1022	int old_save = coro->save;
957		1023
958	if (new_save >= 0)	1024	if (new_save >= 0)
959	coro->save = new_save;	1025	coro->save = new_save;
…		…
962	}	1028	}
963		1029
964	/ Coro ******************************************************************/	1030	/ Coro ******************************************************************/
965		1031
966	static void	1032	static void
967	coro_enq (SV *coro_sv)	1033	coro_enq (pTHX_ SV *coro_sv)
968	{	1034	{
969	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1035	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
970	}	1036	}
971		1037
972	static SV *	1038	static SV *
973	coro_deq (int min_prio)	1039	coro_deq (pTHX_ int min_prio)
974	{	1040	{
975	int prio = PRIO_MAX - PRIO_MIN;	1041	int prio = PRIO_MAX - PRIO_MIN;
976		1042
977	min_prio -= PRIO_MIN;	1043	min_prio -= PRIO_MIN;
978	if (min_prio < 0)	1044	if (min_prio < 0)
…		…
986	}	1052	}
987		1053
988	static int	1054	static int
989	api_ready (SV *coro_sv)	1055	api_ready (SV *coro_sv)
990	{	1056	{
		1057	dTHX;
991	struct coro *coro;	1058	struct coro *coro;
992		1059
993	if (SvROK (coro_sv))	1060	if (SvROK (coro_sv))
994	coro_sv = SvRV (coro_sv);	1061	coro_sv = SvRV (coro_sv);
995		1062
…		…
999	return 0;	1066	return 0;
1000		1067
1001	coro->flags \|= CF_READY;	1068	coro->flags \|= CF_READY;
1002		1069
1003	LOCK;	1070	LOCK;
1004	coro_enq (SvREFCNT_inc (coro_sv));	1071	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1005	++coro_nready;	1072	++coro_nready;
1006	UNLOCK;	1073	UNLOCK;
1007		1074
1008	return 1;	1075	return 1;
1009	}	1076	}
1010		1077
1011	static int	1078	static int
1012	api_is_ready (SV *coro_sv)	1079	api_is_ready (SV *coro_sv)
1013	{	1080	{
		1081	dTHX;
1014	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1082	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1015	}	1083	}
1016		1084
1017	static void	1085	static void
1018	prepare_schedule (struct transfer_args *ta)	1086	prepare_schedule (pTHX_ struct transfer_args *ta)
1019	{	1087	{
1020	SV prev_sv, next_sv;	1088	SV prev_sv, next_sv;
1021		1089
1022	for (;;)	1090	for (;;)
1023	{	1091	{
1024	LOCK;	1092	LOCK;
1025	next_sv = coro_deq (PRIO_MIN);	1093	next_sv = coro_deq (aTHX_ PRIO_MIN);
1026		1094
1027	/* nothing to schedule: call the idle handler */	1095	/* nothing to schedule: call the idle handler */
1028	if (!next_sv)	1096	if (!next_sv)
1029	{	1097	{
		1098	dSP;
1030	UNLOCK;	1099	UNLOCK;
1031	dSP;
1032		1100
1033	ENTER;	1101	ENTER;
1034	SAVETMPS;	1102	SAVETMPS;
1035		1103
1036	PUSHMARK (SP);	1104	PUSHMARK (SP);
…		…
1065		1133
1066	assert (ta->next->flags & CF_READY);	1134	assert (ta->next->flags & CF_READY);
1067	ta->next->flags &= ~CF_READY;	1135	ta->next->flags &= ~CF_READY;
1068		1136
1069	LOCK;	1137	LOCK;
1070	free_coro_mortal ();	1138	free_coro_mortal (aTHX);
1071	coro_mortal = prev_sv;	1139	coro_mortal = prev_sv;
1072	UNLOCK;	1140	UNLOCK;
1073	}	1141	}
1074		1142
1075	static void	1143	static void
1076	prepare_cede (struct transfer_args *ta)	1144	prepare_cede (pTHX_ struct transfer_args *ta)
1077	{	1145	{
1078	api_ready (coro_current);	1146	api_ready (coro_current);
1079	prepare_schedule (ta);	1147	prepare_schedule (aTHX_ ta);
1080	}	1148	}
1081		1149
1082	static int	1150	static int
1083	prepare_cede_notself (struct transfer_args *ta)	1151	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1084	{	1152	{
1085	if (coro_nready)	1153	if (coro_nready)
1086	{	1154	{
1087	SV *prev = SvRV (coro_current);	1155	SV *prev = SvRV (coro_current);
1088	prepare_schedule (ta);	1156	prepare_schedule (aTHX_ ta);
1089	api_ready (prev);	1157	api_ready (prev);
1090	return 1;	1158	return 1;
1091	}	1159	}
1092	else	1160	else
1093	return 0;	1161	return 0;
1094	}	1162	}
1095		1163
1096	static void	1164	static void
1097	api_schedule (void)	1165	api_schedule (void)
1098	{	1166	{
		1167	dTHX;
1099	struct transfer_args ta;	1168	struct transfer_args ta;
1100		1169
1101	prepare_schedule (&ta);	1170	prepare_schedule (aTHX_ &ta);
1102	TRANSFER (ta);	1171	TRANSFER (ta);
1103	}	1172	}
1104		1173
1105	static int	1174	static int
1106	api_cede (void)	1175	api_cede (void)
1107	{	1176	{
		1177	dTHX;
1108	struct transfer_args ta;	1178	struct transfer_args ta;
1109		1179
1110	prepare_cede (&ta);	1180	prepare_cede (aTHX_ &ta);
1111		1181
1112	if (ta.prev != ta.next)	1182	if (ta.prev != ta.next)
1113	{	1183	{
1114	TRANSFER (ta);	1184	TRANSFER (ta);
1115	return 1;	1185	return 1;
…		…
1119	}	1189	}
1120		1190
1121	static int	1191	static int
1122	api_cede_notself (void)	1192	api_cede_notself (void)
1123	{	1193	{
		1194	dTHX;
1124	struct transfer_args ta;	1195	struct transfer_args ta;
1125		1196
1126	if (prepare_cede_notself (&ta))	1197	if (prepare_cede_notself (aTHX_ &ta))
1127	{	1198	{
1128	TRANSFER (ta);	1199	TRANSFER (ta);
1129	return 1;	1200	return 1;
1130	}	1201	}
1131	else	1202	else
…		…
1147		1218
1148	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1219	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1149	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1220	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1150	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));	1221	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1151	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));	1222	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1223	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
		1224	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1152	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1225	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1153		1226
1154	main_mainstack = PL_mainstack;	1227	main_mainstack = PL_mainstack;
		1228	main_top_env = PL_top_env;
		1229
		1230	while (main_top_env->je_prev)
		1231	main_top_env = main_top_env->je_prev;
1155		1232
1156	coroapi.ver = CORO_API_VERSION;	1233	coroapi.ver = CORO_API_VERSION;
1157	coroapi.transfer = api_transfer;	1234	coroapi.transfer = api_transfer;
1158		1235
1159	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1236	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1167	HV *hv;	1244	HV *hv;
1168	int i;	1245	int i;
1169		1246
1170	Newz (0, coro, 1, struct coro);	1247	Newz (0, coro, 1, struct coro);
1171	coro->args = newAV ();	1248	coro->args = newAV ();
1172	coro->save = CORO_SAVE_ALL;	1249	coro->save = CORO_SAVE_DEF;
1173	coro->flags = CF_NEW;	1250	coro->flags = CF_NEW;
1174		1251
		1252	if (coro_first) coro_first->prev = coro;
		1253	coro->next = coro_first;
		1254	coro_first = coro;
		1255
1175	hv = newHV ();	1256	coro->hv = hv = newHV ();
1176	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1257	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1177	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1258	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1178		1259
1179	for (i = 1; i < items; i++)	1260	for (i = 1; i < items; i++)
1180	av_push (coro->args, newSVsv (ST (i)));	1261	av_push (coro->args, newSVsv (ST (i)));
…		…
1184		1265
1185	int	1266	int
1186	save (SV *coro, int new_save = -1)	1267	save (SV *coro, int new_save = -1)
1187	CODE:	1268	CODE:
1188	RETVAL = api_save (coro, new_save);	1269	RETVAL = api_save (coro, new_save);
		1270	OUTPUT:
		1271	RETVAL
		1272
		1273	int
		1274	save_also (SV *coro_sv, int save_also)
		1275	CODE:
		1276	{
		1277	struct coro *coro = SvSTATE (coro_sv);
		1278	RETVAL = coro->save;
		1279	coro->save \|= save_also;
		1280	}
1189	OUTPUT:	1281	OUTPUT:
1190	RETVAL	1282	RETVAL
1191		1283
1192	void	1284	void
1193	_set_stacklevel (...)	1285	_set_stacklevel (...)
…		…
1209		1301
1210	case 1:	1302	case 1:
1211	if (items != 2)	1303	if (items != 2)
1212	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1304	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1213		1305
1214	prepare_transfer (&ta, ST (0), ST (1));	1306	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1215	break;	1307	break;
1216		1308
1217	case 2:	1309	case 2:
1218	prepare_schedule (&ta);	1310	prepare_schedule (aTHX_ &ta);
1219	break;	1311	break;
1220		1312
1221	case 3:	1313	case 3:
1222	prepare_cede (&ta);	1314	prepare_cede (aTHX_ &ta);
1223	break;	1315	break;
1224		1316
1225	case 4:	1317	case 4:
1226	if (!prepare_cede_notself (&ta))	1318	if (!prepare_cede_notself (aTHX_ &ta))
1227	XSRETURN_EMPTY;	1319	XSRETURN_EMPTY;
1228		1320
1229	break;	1321	break;
1230	}	1322	}
1231		1323
…		…
1237	}	1329	}
1238		1330
1239	bool	1331	bool
1240	_destroy (SV *coro_sv)	1332	_destroy (SV *coro_sv)
1241	CODE:	1333	CODE:
1242	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1334	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1243	OUTPUT:	1335	OUTPUT:
1244	RETVAL	1336	RETVAL
1245		1337
1246	void	1338	void
1247	_exit (code)	1339	_exit (code)
…		…
1249	PROTOTYPE: $	1341	PROTOTYPE: $
1250	CODE:	1342	CODE:
1251	_exit (code);	1343	_exit (code);
1252		1344
1253	int	1345	int
		1346	cctx_stacksize (int new_stacksize = 0)
		1347	CODE:
		1348	RETVAL = coro_stacksize;
		1349	if (new_stacksize)
		1350	coro_stacksize = new_stacksize;
		1351	OUTPUT:
		1352	RETVAL
		1353
		1354	int
1254	cctx_count ()	1355	cctx_count ()
1255	CODE:	1356	CODE:
1256	RETVAL = cctx_count;	1357	RETVAL = cctx_count;
1257	OUTPUT:	1358	OUTPUT:
1258	RETVAL	1359	RETVAL
…		…
1261	cctx_idle ()	1362	cctx_idle ()
1262	CODE:	1363	CODE:
1263	RETVAL = cctx_idle;	1364	RETVAL = cctx_idle;
1264	OUTPUT:	1365	OUTPUT:
1265	RETVAL	1366	RETVAL
		1367
		1368	void
		1369	list ()
		1370	PPCODE:
		1371	{
		1372	struct coro *coro;
		1373	for (coro = coro_first; coro; coro = coro->next)
		1374	if (coro->hv)
		1375	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1376	}
		1377
		1378	void
		1379	_eval (Coro::State coro, SV *coderef)
		1380	CODE:
		1381	{
		1382	if (coro->mainstack)
		1383	{
		1384	struct coro temp;
		1385	Zero (&temp, 1, struct coro);
		1386	temp.save = CORO_SAVE_ALL;
		1387
		1388	if (!(coro->flags & CF_RUNNING))
		1389	{
		1390	save_perl (aTHX_ &temp);
		1391	load_perl (aTHX_ coro);
		1392	}
		1393
		1394	{
		1395	dSP;
		1396	ENTER;
		1397	SAVETMPS;
		1398	PUSHMARK (SP);
		1399	PUTBACK;
		1400	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1401	SPAGAIN;
		1402	FREETMPS;
		1403	LEAVE;
		1404	PUTBACK;
		1405	}
		1406
		1407	if (!(coro->flags & CF_RUNNING))
		1408	{
		1409	save_perl (aTHX_ coro);
		1410	load_perl (aTHX_ &temp);
		1411	}
		1412	}
		1413	}
		1414
		1415	SV *
		1416	is_ready (Coro::State coro)
		1417	PROTOTYPE: $
		1418	ALIAS:
		1419	is_ready = CF_READY
		1420	is_running = CF_RUNNING
		1421	is_new = CF_NEW
		1422	is_destroyed = CF_DESTROYED
		1423	CODE:
		1424	RETVAL = boolSV (coro->flags & ix);
		1425	OUTPUT:
		1426	RETVAL
		1427
		1428	IV
		1429	rss (Coro::State coro)
		1430	PROTOTYPE: $
		1431	CODE:
		1432	RETVAL = coro_rss (coro);
		1433	OUTPUT:
		1434	RETVAL
		1435
1266		1436
1267	MODULE = Coro::State PACKAGE = Coro	1437	MODULE = Coro::State PACKAGE = Coro
1268		1438
1269	BOOT:	1439	BOOT:
1270	{	1440	{
…		…
1338	CODE:	1508	CODE:
1339	RETVAL = boolSV (api_ready (self));	1509	RETVAL = boolSV (api_ready (self));
1340	OUTPUT:	1510	OUTPUT:
1341	RETVAL	1511	RETVAL
1342		1512
1343	SV *
1344	is_ready (SV *self)
1345	PROTOTYPE: $
1346	CODE:
1347	RETVAL = boolSV (api_is_ready (self));
1348	OUTPUT:
1349	RETVAL
1350
1351	int	1513	int
1352	nready (...)	1514	nready (...)
1353	PROTOTYPE:	1515	PROTOTYPE:
1354	CODE:	1516	CODE:
1355	RETVAL = coro_nready;	1517	RETVAL = coro_nready;

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Comparing Coro/Coro/State.xs (file contents): Revision 1.138 by root, Sun Jan 14 20:49:45 2007 UTC vs. Revision 1.158 by root, Fri Sep 21 02:23:48 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.138 by root, Sun Jan 14 20:49:45 2007 UTC vs.
Revision 1.158 by root, Fri Sep 21 02:23:48 2007 UTC