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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.131 by root, Fri Dec 29 11:37:49 2006 UTC vs.
Revision 1.160 by root, Sat Sep 22 22:39:15 2007 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
		2
		3	#define PERL_NO_GET_CONTEXT
2		4
3	#include "EXTERN.h"	5	#include "EXTERN.h"
4	#include "perl.h"	6	#include "perl.h"
5	#include "XSUB.h"	7	#include "XSUB.h"
6		8
31	#else	33	#else
32	# define PAGESIZE 0	34	# define PAGESIZE 0
33	# define BOOT_PAGESIZE (void)0	35	# define BOOT_PAGESIZE (void)0
34	#endif	36	#endif
35		37
36	#if USE_VALGRIND	38	#if CORO_USE_VALGRIND
37	# include <valgrind/valgrind.h>	39	# include <valgrind/valgrind.h>
		40	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
		41	#else
		42	# define REGISTER_STACK(cctx,start,end)
38	#endif	43	#endif
39		44
40	/* the maximum number of idle cctx that will be pooled */	45	/* the maximum number of idle cctx that will be pooled */
41	#define MAX_IDLE_CCTX 8	46	#define MAX_IDLE_CCTX 8
42		47
…		…
71	#ifndef SvRV_set	76	#ifndef SvRV_set
72	# define SvRV_set(s,v) SvRV(s) = (v)	77	# define SvRV_set(s,v) SvRV(s) = (v)
73	#endif	78	#endif
74		79
75	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
76	# undef STACKGUARD	81	# undef CORO_STACKGUARD
77	#endif	82	#endif
78		83
79	#ifndef STACKGUARD	84	#ifndef CORO_STACKGUARD
80	# define STACKGUARD 0	85	# define CORO_STACKGUARD 0
81	#endif	86	#endif
82		87
83	/* prefer perl internal functions over our own? */	88	/* prefer perl internal functions over our own? */
84	#ifndef PREFER_PERL_FUNCTIONS	89	#ifndef CORO_PREFER_PERL_FUNCTIONS
85	# define PREFER_PERL_FUNCTIONS 0	90	# define CORO_PREFER_PERL_FUNCTIONS 0
86	#endif	91	#endif
87		92
88	/* The next macro should declare a variable stacklevel that contains and approximation	93	/* The next 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
…		…
112	#else	116	#else
113	# define LOCK (void)0	117	# define LOCK (void)0
114	# define UNLOCK (void)0	118	# define UNLOCK (void)0
115	#endif	119	#endif
116		120
		121	/* helper storage struct for Coro::AIO */
117	struct io_state	122	struct io_state
118	{	123	{
119	int errorno;	124	int errorno;
120	I32 laststype;	125	I32 laststype;
121	int laststatval;	126	int laststatval;
122	Stat_t statcache;	127	Stat_t statcache;
123	};	128	};
124		129
		130	static size_t coro_stacksize = CORO_STACKSIZE;
125	static struct CoroAPI coroapi;	131	static struct CoroAPI coroapi;
126	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;
127	static HV coro_state_stash, coro_stash;	134	static HV coro_state_stash, coro_stash;
128	static SV coro_mortal; / will be freed after next transfer */	135	static SV coro_mortal; / will be freed after next transfer */
		136
		137	/* async_pool helper stuff */
		138	static SV *sv_pool_rss;
		139	static SV *sv_pool_size;
		140	static AV *av_async_pool;
129		141
130	static struct coro_cctx *cctx_first;	142	static struct coro_cctx *cctx_first;
131	static int cctx_count, cctx_idle;	143	static int cctx_count, cctx_idle;
132		144
133	/* this is a structure representing a c-level coroutine */	145	/* this is a structure representing a c-level coroutine */
134	typedef struct coro_cctx {	146	typedef struct coro_cctx {
135	struct coro_cctx *next;	147	struct coro_cctx *next;
136		148
137	/* the stack */	149	/* the stack */
138	void *sptr;	150	void *sptr;
139	long ssize; /* positive == mmap, otherwise malloc */	151	size_t ssize;
140		152
141	/* cpu state */	153	/* cpu state */
142	void idle_sp; / sp of top-level transfer/schedule/cede call */	154	void idle_sp; / sp of top-level transfer/schedule/cede call */
		155	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
143	JMPENV *top_env;	156	JMPENV *top_env;
144	coro_context cctx;	157	coro_context cctx;
145		158
146	int inuse;
147
148	#if USE_VALGRIND	159	#if CORO_USE_VALGRIND
149	int valgrind_id;	160	int valgrind_id;
150	#endif	161	#endif
		162	char inuse, mapped;
151	} coro_cctx;	163	} coro_cctx;
152		164
153	enum {	165	enum {
154	CF_RUNNING = 0x0001, /* coroutine is running */	166	CF_RUNNING = 0x0001, /* coroutine is running */
155	CF_READY = 0x0002, /* coroutine is ready */	167	CF_READY = 0x0002, /* coroutine is ready */
156	CF_NEW = 0x0004, /* ahs never been switched to */	168	CF_NEW = 0x0004, /* has never been switched to */
		169	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
157	};	170	};
158		171
159	/* this is a structure representing a perl-level coroutine */	172	/* this is a structure representing a perl-level coroutine */
160	struct coro {	173	struct coro {
161	/* the c coroutine allocated to this perl coroutine, if any */	174	/* the c coroutine allocated to this perl coroutine, if any */
…		…
169		182
170	/* optionally saved, might be zero */	183	/* optionally saved, might be zero */
171	AV defav; / @_ */	184	AV defav; / @_ */
172	SV defsv; / $_ */	185	SV defsv; / $_ */
173	SV errsv; / $@ */	186	SV errsv; / $@ */
		187	GV deffh; / default filehandle */
174	SV irssv; / $/ */	188	SV irssv; / $/ */
175	SV irssv_sv; / real $/ cache */	189	SV irssv_sv; / real $/ cache */
176		190
177	#define VAR(name,type) type name;	191	#define VAR(name,type) type name;
178	# include "state.h"	192	# include "state.h"
179	#undef VAR	193	#undef VAR
180		194
181	/* coro process data */	195	/* coro process data */
182	int prio;	196	int prio;
		197
		198	/* linked list */
		199	struct coro next, prev;
		200	HV hv; / the perl hash associated with this coro, if any */
183	};	201	};
184		202
185	typedef struct coro *Coro__State;	203	typedef struct coro *Coro__State;
186	typedef struct coro *Coro__State_or_hashref;	204	typedef struct coro *Coro__State_or_hashref;
187		205
		206	/ Coro ******************************************************************/
		207
		208	#define PRIO_MAX 3
		209	#define PRIO_HIGH 1
		210	#define PRIO_NORMAL 0
		211	#define PRIO_LOW -1
		212	#define PRIO_IDLE -3
		213	#define PRIO_MIN -4
		214
		215	/* for Coro.pm */
		216	static SV *coro_current;
		217	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
		218	static int coro_nready;
		219	static struct coro *coro_first;
		220
		221	/ lowlevel stuff ********************************************************/
		222
188	static AV *	223	static AV *
189	coro_clone_padlist (CV *cv)	224	coro_clone_padlist (pTHX_ CV *cv)
190	{	225	{
191	AV *padlist = CvPADLIST (cv);	226	AV *padlist = CvPADLIST (cv);
192	AV newpadlist, newpad;	227	AV newpadlist, newpad;
193		228
194	newpadlist = newAV ();	229	newpadlist = newAV ();
…		…
206		241
207	return newpadlist;	242	return newpadlist;
208	}	243	}
209		244
210	static void	245	static void
211	free_padlist (AV *padlist)	246	free_padlist (pTHX_ AV *padlist)
212	{	247	{
213	/* may be during global destruction */	248	/* may be during global destruction */
214	if (SvREFCNT (padlist))	249	if (SvREFCNT (padlist))
215	{	250	{
216	I32 i = AvFILLp (padlist);	251	I32 i = AvFILLp (padlist);
…		…
237	AV *padlist;	272	AV *padlist;
238	AV av = (AV )mg->mg_obj;	273	AV av = (AV )mg->mg_obj;
239		274
240	/* casting is fun. */	275	/* casting is fun. */
241	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	276	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
242	free_padlist (padlist);	277	free_padlist (aTHX_ padlist);
243		278
244	SvREFCNT_dec (av);	279	SvREFCNT_dec (av);
245		280
246	return 0;	281	return 0;
247	}	282	}
…		…
257	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	292	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
258	: 0	293	: 0
259		294
260	/* the next two functions merely cache the padlists */	295	/* the next two functions merely cache the padlists */
261	static void	296	static void
262	get_padlist (CV *cv)	297	get_padlist (pTHX_ CV *cv)
263	{	298	{
264	MAGIC *mg = CORO_MAGIC (cv);	299	MAGIC *mg = CORO_MAGIC (cv);
265	AV *av;	300	AV *av;
266		301
267	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	302	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
268	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	303	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
269	else	304	else
270	{	305	{
271	#if PREFER_PERL_FUNCTIONS	306	#if CORO_PREFER_PERL_FUNCTIONS
272	/* this is probably cleaner, but also slower? */	307	/* this is probably cleaner, but also slower? */
273	CV *cp = Perl_cv_clone (cv);	308	CV *cp = Perl_cv_clone (cv);
274	CvPADLIST (cv) = CvPADLIST (cp);	309	CvPADLIST (cv) = CvPADLIST (cp);
275	CvPADLIST (cp) = 0;	310	CvPADLIST (cp) = 0;
276	SvREFCNT_dec (cp);	311	SvREFCNT_dec (cp);
277	#else	312	#else
278	CvPADLIST (cv) = coro_clone_padlist (cv);	313	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
279	#endif	314	#endif
280	}	315	}
281	}	316	}
282		317
283	static void	318	static void
284	put_padlist (CV *cv)	319	put_padlist (pTHX_ CV *cv)
285	{	320	{
286	MAGIC *mg = CORO_MAGIC (cv);	321	MAGIC *mg = CORO_MAGIC (cv);
287	AV *av;	322	AV *av;
288		323
289	if (!mg)	324	if (!mg)
…		…
300	av_extend (av, AvMAX (av) + 1);	335	av_extend (av, AvMAX (av) + 1);
301		336
302	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	337	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
303	}	338	}
304		339
		340	/ load & save, init *****************************************************/
		341
305	#define SB do {	342	#define SB do {
306	#define SE } while (0)	343	#define SE } while (0)
307		344
308	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	345	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
309		346
310	static void	347	static void
311	load_perl (Coro__State c)	348	load_perl (pTHX_ Coro__State c)
312	{	349	{
313	#define VAR(name,type) PL_ ## name = c->name;	350	#define VAR(name,type) PL_ ## name = c->name;
314	# include "state.h"	351	# include "state.h"
315	#undef VAR	352	#undef VAR
316		353
317	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	354	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
318	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	355	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
319	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	356	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		357	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
		358
320	if (c->irssv)	359	if (c->irssv)
321	{	360	{
322	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))	361	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		362	{
323	SvREFCNT_dec (c->irssv);	363	SvREFCNT_dec (c->irssv);
		364	c->irssv = 0;
		365	}
324	else	366	else
325	{	367	{
326	REPLACE_SV (PL_rs, c->irssv);	368	REPLACE_SV (PL_rs, c->irssv);
327	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);	369	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
328	sv_setsv (c->irssv_sv, PL_rs);	370	sv_setsv (c->irssv_sv, PL_rs);
…		…
334	CV *cv;	376	CV *cv;
335		377
336	/* now do the ugly restore mess */	378	/* now do the ugly restore mess */
337	while ((cv = (CV *)POPs))	379	while ((cv = (CV *)POPs))
338	{	380	{
339	put_padlist (cv); /* mark this padlist as available */	381	put_padlist (aTHX_ cv); /* mark this padlist as available */
340	CvDEPTH (cv) = PTR2IV (POPs);	382	CvDEPTH (cv) = PTR2IV (POPs);
341	CvPADLIST (cv) = (AV *)POPs;	383	CvPADLIST (cv) = (AV *)POPs;
342	}	384	}
343		385
344	PUTBACK;	386	PUTBACK;
345	}	387	}
346	}	388	}
347		389
348	static void	390	static void
349	save_perl (Coro__State c)	391	save_perl (pTHX_ Coro__State c)
350	{	392	{
351	{	393	{
352	dSP;	394	dSP;
353	I32 cxix = cxstack_ix;	395	I32 cxix = cxstack_ix;
354	PERL_CONTEXT *ccstk = cxstack;	396	PERL_CONTEXT *ccstk = cxstack;
…		…
357	/*	399	/*
358	* the worst thing you can imagine happens first - we have to save	400	* the worst thing you can imagine happens first - we have to save
359	* (and reinitialize) all cv's in the whole callchain :(	401	* (and reinitialize) all cv's in the whole callchain :(
360	*/	402	*/
361		403
362	EXTEND (SP, 3 + 1);
363	PUSHs (Nullsv);	404	XPUSHs (Nullsv);
364	/* this loop was inspired by pp_caller */	405	/* this loop was inspired by pp_caller */
365	for (;;)	406	for (;;)
366	{	407	{
367	while (cxix >= 0)	408	while (cxix >= 0)
368	{	409	{
369	PERL_CONTEXT *cx = &ccstk[cxix--];	410	PERL_CONTEXT *cx = &ccstk[cxix--];
370		411
371	if (CxTYPE (cx) == CXt_SUB)	412	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
372	{	413	{
373	CV *cv = cx->blk_sub.cv;	414	CV *cv = cx->blk_sub.cv;
374		415
375	if (CvDEPTH (cv))	416	if (CvDEPTH (cv))
376	{	417	{
…		…
378	PUSHs ((SV *)CvPADLIST (cv));	419	PUSHs ((SV *)CvPADLIST (cv));
379	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	420	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
380	PUSHs ((SV *)cv);	421	PUSHs ((SV *)cv);
381		422
382	CvDEPTH (cv) = 0;	423	CvDEPTH (cv) = 0;
383	get_padlist (cv);	424	get_padlist (aTHX_ cv);
384	}	425	}
385	}	426	}
386	}	427	}
387		428
388	if (top_si->si_type == PERLSI_MAIN)	429	if (top_si->si_type == PERLSI_MAIN)
389	break;	430	break;
390		431
391	top_si = top_si->si_prev;	432	top_si = top_si->si_prev;
392	ccstk = top_si->si_cxstack;	433	ccstk = top_si->si_cxstack;
393	cxix = top_si->si_cxix;	434	cxix = top_si->si_cxix;
394	}	435	}
395		436
396	PUTBACK;	437	PUTBACK;
397	}	438	}
398		439
399	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	440	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
400	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	441	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
401	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	442	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		443	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;
402	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	444	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
403		445
404	#define VAR(name,type)c->name = PL_ ## name;	446	#define VAR(name,type)c->name = PL_ ## name;
405	# include "state.h"	447	# include "state.h"
406	#undef VAR	448	#undef VAR
…		…
410	* allocate various perl stacks. This is an exact copy	452	* allocate various perl stacks. This is an exact copy
411	* of perl.c:init_stacks, except that it uses less memory	453	* of perl.c:init_stacks, except that it uses less memory
412	* on the (sometimes correct) assumption that coroutines do	454	* on the (sometimes correct) assumption that coroutines do
413	* not usually need a lot of stackspace.	455	* not usually need a lot of stackspace.
414	*/	456	*/
415	#if PREFER_PERL_FUNCTIONS	457	#if CORO_PREFER_PERL_FUNCTIONS
416	# define coro_init_stacks init_stacks	458	# define coro_init_stacks init_stacks
417	#else	459	#else
418	static void	460	static void
419	coro_init_stacks ()	461	coro_init_stacks (pTHX)
420	{	462	{
421	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	463	PL_curstackinfo = new_stackinfo(64, 6);
422	PL_curstackinfo->si_type = PERLSI_MAIN;	464	PL_curstackinfo->si_type = PERLSI_MAIN;
423	PL_curstack = PL_curstackinfo->si_stack;	465	PL_curstack = PL_curstackinfo->si_stack;
424	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	466	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
425		467
426	PL_stack_base = AvARRAY(PL_curstack);	468	PL_stack_base = AvARRAY(PL_curstack);
427	PL_stack_sp = PL_stack_base;	469	PL_stack_sp = PL_stack_base;
428	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	470	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
429		471
430	New(50,PL_tmps_stack,128,SV*);	472	New(50,PL_tmps_stack,64,SV*);
431	PL_tmps_floor = -1;	473	PL_tmps_floor = -1;
432	PL_tmps_ix = -1;	474	PL_tmps_ix = -1;
433	PL_tmps_max = 128;	475	PL_tmps_max = 64;
434		476
435	New(54,PL_markstack,32,I32);	477	New(54,PL_markstack,16,I32);
436	PL_markstack_ptr = PL_markstack;	478	PL_markstack_ptr = PL_markstack;
437	PL_markstack_max = PL_markstack + 32;	479	PL_markstack_max = PL_markstack + 16;
438		480
439	#ifdef SET_MARK_OFFSET	481	#ifdef SET_MARK_OFFSET
440	SET_MARK_OFFSET;	482	SET_MARK_OFFSET;
441	#endif	483	#endif
442		484
443	New(54,PL_scopestack,32,I32);	485	New(54,PL_scopestack,16,I32);
444	PL_scopestack_ix = 0;	486	PL_scopestack_ix = 0;
445	PL_scopestack_max = 32;	487	PL_scopestack_max = 16;
446		488
447	New(54,PL_savestack,64,ANY);	489	New(54,PL_savestack,64,ANY);
448	PL_savestack_ix = 0;	490	PL_savestack_ix = 0;
449	PL_savestack_max = 64;	491	PL_savestack_max = 64;
450		492
451	#if !PERL_VERSION_ATLEAST (5,9,0)	493	#if !PERL_VERSION_ATLEAST (5,9,0)
452	New(54,PL_retstack,16,OP*);	494	New(54,PL_retstack,4,OP*);
453	PL_retstack_ix = 0;	495	PL_retstack_ix = 0;
454	PL_retstack_max = 16;	496	PL_retstack_max = 4;
455	#endif	497	#endif
456	}	498	}
457	#endif	499	#endif
458		500
459	/*	501	/*
460	* destroy the stacks, the callchain etc...	502	* destroy the stacks, the callchain etc...
461	*/	503	*/
462	static void	504	static void
463	coro_destroy_stacks ()	505	coro_destroy_stacks (pTHX)
464	{	506	{
465	if (!IN_DESTRUCT)	507	if (!IN_DESTRUCT)
466	{	508	{
467	/* restore all saved variables and stuff */	509	/* restore all saved variables and stuff */
468	LEAVE_SCOPE (0);	510	LEAVE_SCOPE (0);
…		…
470		512
471	/* free all temporaries */	513	/* free all temporaries */
472	FREETMPS;	514	FREETMPS;
473	assert (PL_tmps_ix == -1);	515	assert (PL_tmps_ix == -1);
474		516
		517	/* unwind all extra stacks */
475	POPSTACK_TO (PL_mainstack);	518	POPSTACK_TO (PL_mainstack);
		519
		520	/* unwind main stack */
		521	dounwind (-1);
476	}	522	}
477		523
478	while (PL_curstackinfo->si_next)	524	while (PL_curstackinfo->si_next)
479	PL_curstackinfo = PL_curstackinfo->si_next;	525	PL_curstackinfo = PL_curstackinfo->si_next;
480		526
…		…
497	#if !PERL_VERSION_ATLEAST (5,9,0)	543	#if !PERL_VERSION_ATLEAST (5,9,0)
498	Safefree (PL_retstack);	544	Safefree (PL_retstack);
499	#endif	545	#endif
500	}	546	}
501		547
		548	static size_t
		549	coro_rss (struct coro *coro)
		550	{
		551	size_t rss = sizeof (coro);
		552
		553	if (coro->mainstack)
		554	{
		555	if (coro->flags & CF_RUNNING)
		556	{
		557	#define VAR(name,type)coro->name = PL_ ## name;
		558	# include "state.h"
		559	#undef VAR
		560	}
		561
		562	rss += sizeof (coro->curstackinfo);
		563	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		564	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		565	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		566	rss += coro->tmps_max * sizeof (SV *);
		567	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		568	rss += coro->scopestack_max * sizeof (I32);
		569	rss += coro->savestack_max * sizeof (ANY);
		570
		571	#if !PERL_VERSION_ATLEAST (5,9,0)
		572	rss += coro->retstack_max * sizeof (OP *);
		573	#endif
		574	}
		575
		576	return rss;
		577	}
		578
		579	/ coroutine stack handling **********************************************/
		580
502	static void	581	static void
503	setup_coro (struct coro *coro)	582	setup_coro (pTHX_ struct coro *coro)
504	{	583	{
505	/*	584	/*
506	* emulate part of the perl startup here.	585	* emulate part of the perl startup here.
507	*/	586	*/
508
509	coro_init_stacks ();	587	coro_init_stacks (aTHX);
510		588
511	PL_curcop = &PL_compiling;	589	PL_curcop = &PL_compiling;
512	PL_in_eval = EVAL_NULL;	590	PL_in_eval = EVAL_NULL;
		591	PL_comppad = 0;
513	PL_curpm = 0;	592	PL_curpm = 0;
514	PL_localizing = 0;	593	PL_localizing = 0;
515	PL_dirty = 0;	594	PL_dirty = 0;
516	PL_restartop = 0;	595	PL_restartop = 0;
517		596
…		…
525	Zero (&myop, 1, LOGOP);	604	Zero (&myop, 1, LOGOP);
526	myop.op_next = Nullop;	605	myop.op_next = Nullop;
527	myop.op_flags = OPf_WANT_VOID;	606	myop.op_flags = OPf_WANT_VOID;
528		607
529	PUSHMARK (SP);	608	PUSHMARK (SP);
530	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	609	XPUSHs (av_shift (GvAV (PL_defgv)));
531	PUTBACK;	610	PUTBACK;
532	PL_op = (OP *)&myop;	611	PL_op = (OP *)&myop;
533	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	612	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
534	SPAGAIN;	613	SPAGAIN;
535	}	614	}
536		615
537	ENTER; /* necessary e.g. for dounwind */	616	ENTER; /* necessary e.g. for dounwind */
538	}	617	}
539		618
540	static void	619	static void
541	free_coro_mortal ()	620	free_coro_mortal (pTHX)
542	{	621	{
543	if (coro_mortal)	622	if (coro_mortal)
544	{	623	{
545	SvREFCNT_dec (coro_mortal);	624	SvREFCNT_dec (coro_mortal);
546	coro_mortal = 0;	625	coro_mortal = 0;
547	}	626	}
548	}	627	}
549		628
550	/* inject a fake call to Coro::State::_cctx_init into the execution */	629	/* inject a fake call to Coro::State::_cctx_init into the execution */
		630	/* _cctx_init should be careful, as it could be called at almost any time */
		631	/* during execution of a perl program */
551	static void NOINLINE	632	static void NOINLINE
552	prepare_cctx (coro_cctx *cctx)	633	prepare_cctx (pTHX_ coro_cctx *cctx)
553	{	634	{
554	dSP;	635	dSP;
555	LOGOP myop;	636	LOGOP myop;
556		637
557	Zero (&myop, 1, LOGOP);	638	Zero (&myop, 1, LOGOP);
…		…
566	PL_op = (OP *)&myop;	647	PL_op = (OP *)&myop;
567	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	648	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
568	SPAGAIN;	649	SPAGAIN;
569	}	650	}
570		651
		652	/*
		653	* this is a _very_ stripped down perl interpreter ;)
		654	*/
571	static void	655	static void
572	coro_run (void *arg)	656	coro_run (void *arg)
573	{	657	{
		658	dTHX;
		659
574	/* coro_run is the alternative tail of transfer(), so unlock here. */	660	/* coro_run is the alternative tail of transfer(), so unlock here. */
575	UNLOCK;	661	UNLOCK;
576		662
577	/*
578	* this is a _very_ stripped down perl interpreter ;)
579	*/
580	PL_top_env = &PL_start_env;	663	PL_top_env = &PL_start_env;
581		664
582	/* inject call to cctx_init */	665	/* inject a fake subroutine call to cctx_init */
583	prepare_cctx ((coro_cctx *)arg);	666	prepare_cctx (aTHX_ (coro_cctx *)arg);
584		667
585	/* somebody will hit me for both perl_run and PL_restartop */	668	/* somebody or something will hit me for both perl_run and PL_restartop */
586	PL_restartop = PL_op;	669	PL_restartop = PL_op;
587	perl_run (PL_curinterp);	670	perl_run (PL_curinterp);
588		671
589	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	672	/*
590	abort ();	673	* If perl-run returns we assume exit() was being called or the coro
		674	* fell off the end, which seems to be the only valid (non-bug)
		675	* reason for perl_run to return. We try to exit by jumping to the
		676	* bootstrap-time "top" top_env, as we cannot restore the "main"
		677	* coroutine as Coro has no such concept
		678	*/
		679	PL_top_env = main_top_env;
		680	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
591	}	681	}
592		682
593	static coro_cctx *	683	static coro_cctx *
594	cctx_new ()	684	cctx_new ()
595	{	685	{
596	coro_cctx *cctx;	686	coro_cctx *cctx;
		687	void *stack_start;
		688	size_t stack_size;
597		689
598	++cctx_count;	690	++cctx_count;
599		691
600	Newz (0, cctx, 1, coro_cctx);	692	Newz (0, cctx, 1, coro_cctx);
601		693
602	#if HAVE_MMAP	694	#if HAVE_MMAP
603		695
604	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	696	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
605	/* mmap supposedly does allocate-on-write for us */	697	/* mmap supposedly does allocate-on-write for us */
606	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	698	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
607		699
608	if (cctx->sptr == (void *)-1)	700	if (cctx->sptr != (void *)-1)
609	{
610	perror ("FATAL: unable to mmap stack for coroutine");
611	_exit (EXIT_FAILURE);
612	}	701	{
613
614	# if STACKGUARD	702	# if CORO_STACKGUARD
615	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	703	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
616	# endif	704	# endif
		705	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		706	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		707	cctx->mapped = 1;
		708	}
		709	else
		710	#endif
		711	{
		712	cctx->ssize = coro_stacksize * (long)sizeof (long);
		713	New (0, cctx->sptr, coro_stacksize, long);
617		714
618	#else
619
620	cctx->ssize = STACKSIZE * (long)sizeof (long);
621	New (0, cctx->sptr, STACKSIZE, long);
622
623	if (!cctx->sptr)	715	if (!cctx->sptr)
624	{	716	{
625	perror ("FATAL: unable to malloc stack for coroutine");	717	perror ("FATAL: unable to allocate stack for coroutine");
626	_exit (EXIT_FAILURE);	718	_exit (EXIT_FAILURE);
627	}	719	}
628		720
629	#endif	721	stack_start = cctx->sptr;
		722	stack_size = cctx->ssize;
		723	}
630		724
631	#if USE_VALGRIND	725	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
632	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
633	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
634	cctx->ssize + (char *)cctx->sptr
635	);
636	#endif
637
638	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	726	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
639		727
640	return cctx;	728	return cctx;
641	}	729	}
642		730
643	static void	731	static void
…		…
646	if (!cctx)	734	if (!cctx)
647	return;	735	return;
648		736
649	--cctx_count;	737	--cctx_count;
650		738
651	#if USE_VALGRIND	739	#if CORO_USE_VALGRIND
652	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	740	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
653	#endif	741	#endif
654		742
655	#if HAVE_MMAP	743	#if HAVE_MMAP
		744	if (cctx->mapped)
656	munmap (cctx->sptr, cctx->ssize);	745	munmap (cctx->sptr, cctx->ssize);
657	#else	746	else
		747	#endif
658	Safefree (cctx->sptr);	748	Safefree (cctx->sptr);
659	#endif
660		749
661	Safefree (cctx);	750	Safefree (cctx);
662	}	751	}
663		752
664	static coro_cctx *	753	static coro_cctx *
665	cctx_get ()	754	cctx_get (pTHX)
666	{	755	{
667	coro_cctx *cctx;
668
669	if (cctx_first)	756	while (cctx_first)
670	{	757	{
671	cctx = cctx_first;	758	coro_cctx *cctx = cctx_first;
672	cctx_first = cctx->next;	759	cctx_first = cctx->next;
673	--cctx_idle;	760	--cctx_idle;
		761
		762	if (cctx->ssize >= coro_stacksize)
		763	return cctx;
		764
		765	cctx_destroy (cctx);
674	}	766	}
675	else	767
676	{
677	cctx = cctx_new ();
678	PL_op = PL_op->op_next;	768	PL_op = PL_op->op_next;
679	}
680
681	return cctx;	769	return cctx_new ();
682	}	770	}
683		771
684	static void	772	static void
685	cctx_put (coro_cctx *cctx)	773	cctx_put (coro_cctx *cctx)
686	{	774	{
…		…
698	++cctx_idle;	786	++cctx_idle;
699	cctx->next = cctx_first;	787	cctx->next = cctx_first;
700	cctx_first = cctx;	788	cctx_first = cctx;
701	}	789	}
702		790
		791	/ coroutine switching ***************************************************/
		792
703	/* never call directly, always through the coro_state_transfer global variable */	793	/* never call directly, always through the coro_state_transfer global variable */
704	static void NOINLINE	794	static void NOINLINE
705	transfer (struct coro prev, struct coro next)	795	transfer (pTHX_ struct coro prev, struct coro next)
706	{	796	{
707	dSTACKLEVEL;	797	dSTACKLEVEL;
708		798
709	/* sometimes transfer is only called to set idle_sp */	799	/* sometimes transfer is only called to set idle_sp */
710	if (!next)	800	if (!next)
711	{	801	{
712	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	802	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
713	assert (((coro_cctx )prev)->top_env = PL_top_env); / just for the side effetc when assert is enabled */	803	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
714	}	804	}
715	else if (prev != next)	805	else if (prev != next)
716	{	806	{
717	coro_cctx *prev__cctx;	807	coro_cctx *prev__cctx;
718		808
…		…
730	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");	820	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
731		821
732	if (next->flags & CF_RUNNING)	822	if (next->flags & CF_RUNNING)
733	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	823	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
734		824
		825	if (next->flags & CF_DESTROYED)
		826	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		827
735	prev->flags &= ~CF_RUNNING;	828	prev->flags &= ~CF_RUNNING;
736	next->flags \|= CF_RUNNING;	829	next->flags \|= CF_RUNNING;
737		830
738	LOCK;	831	LOCK;
739		832
740	if (next->flags & CF_NEW)	833	if (next->flags & CF_NEW)
741	{	834	{
742	/* need to start coroutine */	835	/* need to start coroutine */
743	next->flags &= ~CF_NEW;	836	next->flags &= ~CF_NEW;
744	/* first get rid of the old state */	837	/* first get rid of the old state */
745	save_perl (prev);	838	save_perl (aTHX_ prev);
746	/* setup coroutine call */	839	/* setup coroutine call */
747	setup_coro (next);	840	setup_coro (aTHX_ next);
748	/* need a new stack */	841	/* need a new stack */
749	assert (!next->cctx);	842	assert (!next->cctx);
750	}	843	}
751	else	844	else
752	{	845	{
753	/* coroutine already started */	846	/* coroutine already started */
754	save_perl (prev);	847	save_perl (aTHX_ prev);
755	load_perl (next);	848	load_perl (aTHX_ next);
756	}	849	}
757		850
758	prev__cctx = prev->cctx;	851	prev__cctx = prev->cctx;
759		852
760	/* possibly "free" the cctx */	853	/* possibly "free" the cctx */
761	if (prev__cctx->idle_sp == STACKLEVEL)	854	if (prev__cctx->idle_sp == STACKLEVEL)
762	{	855	{
763	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	856	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
764	assert (PL_top_env == prev__cctx->top_env);	857	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
765		858
766	prev->cctx = 0;	859	prev->cctx = 0;
767		860
768	cctx_put (prev__cctx);	861	cctx_put (prev__cctx);
769	prev__cctx->inuse = 0;	862	prev__cctx->inuse = 0;
770	}	863	}
771		864
772	if (!next->cctx)	865	if (!next->cctx)
773	{	866	{
774	next->cctx = cctx_get ();	867	next->cctx = cctx_get (aTHX);
775	assert (!next->cctx->inuse);	868	assert (!next->cctx->inuse);
776	next->cctx->inuse = 1;	869	next->cctx->inuse = 1;
777	}	870	}
778		871
779	if (prev__cctx != next->cctx)	872	if (prev__cctx != next->cctx)
…		…
781	prev__cctx->top_env = PL_top_env;	874	prev__cctx->top_env = PL_top_env;
782	PL_top_env = next->cctx->top_env;	875	PL_top_env = next->cctx->top_env;
783	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	876	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
784	}	877	}
785		878
786	free_coro_mortal ();	879	free_coro_mortal (aTHX);
787
788	UNLOCK;	880	UNLOCK;
789	}	881	}
790	}	882	}
791		883
792	struct transfer_args	884	struct transfer_args
793	{	885	{
794	struct coro prev, next;	886	struct coro prev, next;
795	};	887	};
796		888
797	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	889	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
798		890
		891	/ high level stuff ******************************************************/
		892
799	static void	893	static int
800	coro_state_destroy (struct coro *coro)	894	coro_state_destroy (pTHX_ struct coro *coro)
801	{	895	{
802	if (coro->refcnt--)	896	if (coro->flags & CF_DESTROYED)
803	return;	897	return 0;
		898
		899	coro->flags \|= CF_DESTROYED;
		900
		901	if (coro->flags & CF_READY)
		902	{
		903	/* reduce nready, as destroying a ready coro effectively unreadies it */
		904	/* alternative: look through all ready queues and remove the coro */
		905	LOCK;
		906	--coro_nready;
		907	UNLOCK;
		908	}
		909	else
		910	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
804		911
805	if (coro->mainstack && coro->mainstack != main_mainstack)	912	if (coro->mainstack && coro->mainstack != main_mainstack)
806	{	913	{
807	struct coro temp;	914	struct coro temp;
		915
		916	assert (!(coro->flags & CF_RUNNING));
		917
808	Zero (&temp, 1, struct coro);	918	Zero (&temp, 1, struct coro);
809	temp.save = CORO_SAVE_ALL;	919	temp.save = CORO_SAVE_ALL;
810		920
811	if (coro->flags & CF_RUNNING)	921	if (coro->flags & CF_RUNNING)
812	croak ("FATAL: tried to destroy currently running coroutine");	922	croak ("FATAL: tried to destroy currently running coroutine");
813		923
814	save_perl (&temp);	924	save_perl (aTHX_ &temp);
815	load_perl (coro);	925	load_perl (aTHX_ coro);
816		926
817	coro_destroy_stacks ();	927	coro_destroy_stacks (aTHX);
818		928
819	load_perl (&temp); /* this will get rid of defsv etc.. */	929	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
820		930
821	coro->mainstack = 0;	931	coro->mainstack = 0;
822	}	932	}
823		933
824	cctx_destroy (coro->cctx);	934	cctx_destroy (coro->cctx);
825	SvREFCNT_dec (coro->args);	935	SvREFCNT_dec (coro->args);
826	Safefree (coro);	936
		937	if (coro->next) coro->next->prev = coro->prev;
		938	if (coro->prev) coro->prev->next = coro->next;
		939	if (coro == coro_first) coro_first = coro->next;
		940
		941	return 1;
827	}	942	}
828		943
829	static int	944	static int
830	coro_state_clear (pTHX_ SV sv, MAGIC mg)	945	coro_state_free (pTHX_ SV sv, MAGIC mg)
831	{	946	{
832	struct coro coro = (struct coro )mg->mg_ptr;	947	struct coro coro = (struct coro )mg->mg_ptr;
833	mg->mg_ptr = 0;	948	mg->mg_ptr = 0;
834		949
		950	coro->hv = 0;
		951
		952	if (--coro->refcnt < 0)
		953	{
835	coro_state_destroy (coro);	954	coro_state_destroy (aTHX_ coro);
		955	Safefree (coro);
		956	}
836		957
837	return 0;	958	return 0;
838	}	959	}
839		960
840	static int	961	static int
…		…
847	return 0;	968	return 0;
848	}	969	}
849		970
850	static MGVTBL coro_state_vtbl = {	971	static MGVTBL coro_state_vtbl = {
851	0, 0, 0, 0,	972	0, 0, 0, 0,
852	coro_state_clear,	973	coro_state_free,
853	0,	974	0,
854	#ifdef MGf_DUP	975	#ifdef MGf_DUP
855	coro_state_dup,	976	coro_state_dup,
856	#else	977	#else
857	# define MGf_DUP 0	978	# define MGf_DUP 0
858	#endif	979	#endif
859	};	980	};
860		981
861	static struct coro *	982	static struct coro *
862	SvSTATE (SV *coro)	983	SvSTATE_ (pTHX_ SV *coro)
863	{	984	{
864	HV *stash;	985	HV *stash;
865	MAGIC *mg;	986	MAGIC *mg;
866		987
867	if (SvROK (coro))	988	if (SvROK (coro))
…		…
873	/* very slow, but rare, check */	994	/* very slow, but rare, check */
874	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	995	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
875	croak ("Coro::State object required");	996	croak ("Coro::State object required");
876	}	997	}
877		998
878	mg = SvMAGIC (coro);	999	mg = CORO_MAGIC (coro);
879	assert (mg->mg_type == PERL_MAGIC_ext);
880	return (struct coro *)mg->mg_ptr;	1000	return (struct coro *)mg->mg_ptr;
881	}	1001	}
882		1002
		1003	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		1004
883	static void	1005	static void
884	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	1006	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
885	{	1007	{
886	ta->prev = SvSTATE (prev_sv);	1008	ta->prev = SvSTATE (prev_sv);
887	ta->next = SvSTATE (next_sv);	1009	ta->next = SvSTATE (next_sv);
888	}	1010	}
889		1011
890	static void	1012	static void
891	api_transfer (SV prev_sv, SV next_sv)	1013	api_transfer (SV prev_sv, SV next_sv)
892	{	1014	{
		1015	dTHX;
893	struct transfer_args ta;	1016	struct transfer_args ta;
894		1017
895	prepare_transfer (&ta, prev_sv, next_sv);	1018	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
896	TRANSFER (ta);	1019	TRANSFER (ta);
897	}	1020	}
898		1021
899	static int	1022	static int
900	api_save (SV *coro_sv, int new_save)	1023	api_save (SV *coro_sv, int new_save)
901	{	1024	{
		1025	dTHX;
902	struct coro *coro = SvSTATE (coro_sv);	1026	struct coro *coro = SvSTATE (coro_sv);
903	int old_save = coro->save;	1027	int old_save = coro->save;
904		1028
905	if (new_save >= 0)	1029	if (new_save >= 0)
906	coro->save = new_save;	1030	coro->save = new_save;
…		…
908	return old_save;	1032	return old_save;
909	}	1033	}
910		1034
911	/ Coro ******************************************************************/	1035	/ Coro ******************************************************************/
912		1036
913	#define PRIO_MAX 3
914	#define PRIO_HIGH 1
915	#define PRIO_NORMAL 0
916	#define PRIO_LOW -1
917	#define PRIO_IDLE -3
918	#define PRIO_MIN -4
919
920	/* for Coro.pm */
921	static SV *coro_current;
922	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
923	static int coro_nready;
924
925	static void	1037	static void
926	coro_enq (SV *coro_sv)	1038	coro_enq (pTHX_ SV *coro_sv)
927	{	1039	{
928	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1040	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
929	coro_nready++;
930	}	1041	}
931		1042
932	static SV *	1043	static SV *
933	coro_deq (int min_prio)	1044	coro_deq (pTHX_ int min_prio)
934	{	1045	{
935	int prio = PRIO_MAX - PRIO_MIN;	1046	int prio = PRIO_MAX - PRIO_MIN;
936		1047
937	min_prio -= PRIO_MIN;	1048	min_prio -= PRIO_MIN;
938	if (min_prio < 0)	1049	if (min_prio < 0)
939	min_prio = 0;	1050	min_prio = 0;
940		1051
941	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1052	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
942	if (AvFILLp (coro_ready [prio]) >= 0)	1053	if (AvFILLp (coro_ready [prio]) >= 0)
943	{
944	coro_nready--;
945	return av_shift (coro_ready [prio]);	1054	return av_shift (coro_ready [prio]);
946	}
947		1055
948	return 0;	1056	return 0;
949	}	1057	}
950		1058
951	static int	1059	static int
952	api_ready (SV *coro_sv)	1060	api_ready (SV *coro_sv)
953	{	1061	{
		1062	dTHX;
954	struct coro *coro;	1063	struct coro *coro;
955		1064
956	if (SvROK (coro_sv))	1065	if (SvROK (coro_sv))
957	coro_sv = SvRV (coro_sv);	1066	coro_sv = SvRV (coro_sv);
958		1067
…		…
962	return 0;	1071	return 0;
963		1072
964	coro->flags \|= CF_READY;	1073	coro->flags \|= CF_READY;
965		1074
966	LOCK;	1075	LOCK;
967	coro_enq (SvREFCNT_inc (coro_sv));	1076	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
		1077	++coro_nready;
968	UNLOCK;	1078	UNLOCK;
969		1079
970	return 1;	1080	return 1;
971	}	1081	}
972		1082
973	static int	1083	static int
974	api_is_ready (SV *coro_sv)	1084	api_is_ready (SV *coro_sv)
975	{	1085	{
		1086	dTHX;
976	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1087	return !!(SvSTATE (coro_sv)->flags & CF_READY);
977	}	1088	}
978		1089
979	static void	1090	static void
980	prepare_schedule (struct transfer_args *ta)	1091	prepare_schedule (pTHX_ struct transfer_args *ta)
981	{	1092	{
982	SV prev, next;	1093	SV prev_sv, next_sv;
983		1094
984	for (;;)	1095	for (;;)
985	{	1096	{
986	LOCK;	1097	LOCK;
987	next = coro_deq (PRIO_MIN);	1098	next_sv = coro_deq (aTHX_ PRIO_MIN);
		1099
		1100	/* nothing to schedule: call the idle handler */
		1101	if (!next_sv)
		1102	{
		1103	dSP;
		1104	UNLOCK;
		1105
		1106	ENTER;
		1107	SAVETMPS;
		1108
		1109	PUSHMARK (SP);
		1110	PUTBACK;
		1111	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1112
		1113	FREETMPS;
		1114	LEAVE;
		1115	continue;
		1116	}
		1117
		1118	ta->next = SvSTATE (next_sv);
		1119
		1120	/* cannot transfer to destroyed coros, skip and look for next */
		1121	if (ta->next->flags & CF_DESTROYED)
		1122	{
		1123	UNLOCK;
		1124	SvREFCNT_dec (next_sv);
		1125	/* coro_nready is already taken care of by destroy */
		1126	continue;
		1127	}
		1128
		1129	--coro_nready;
988	UNLOCK;	1130	UNLOCK;
989
990	if (next)
991	break;	1131	break;
992
993	{
994	dSP;
995
996	ENTER;
997	SAVETMPS;
998
999	PUSHMARK (SP);
1000	PUTBACK;
1001	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1002
1003	FREETMPS;
1004	LEAVE;
1005	}	1132	}
1006	}
1007
1008	prev = SvRV (coro_current);
1009	SvRV_set (coro_current, next);
1010		1133
1011	/* free this only after the transfer */	1134	/* free this only after the transfer */
1012	LOCK;	1135	prev_sv = SvRV (coro_current);
1013	free_coro_mortal ();	1136	SvRV_set (coro_current, next_sv);
1014	UNLOCK;
1015	coro_mortal = prev;
1016
1017	assert (!SvROK(prev));//D
1018	assert (!SvROK(next));//D
1019
1020	ta->prev = SvSTATE (prev);	1137	ta->prev = SvSTATE (prev_sv);
1021	ta->next = SvSTATE (next);
1022		1138
1023	assert (ta->next->flags & CF_READY);	1139	assert (ta->next->flags & CF_READY);
1024	ta->next->flags &= ~CF_READY;	1140	ta->next->flags &= ~CF_READY;
1025	}
1026		1141
		1142	LOCK;
		1143	free_coro_mortal (aTHX);
		1144	coro_mortal = prev_sv;
		1145	UNLOCK;
		1146	}
		1147
1027	static void	1148	static void
1028	prepare_cede (struct transfer_args *ta)	1149	prepare_cede (pTHX_ struct transfer_args *ta)
1029	{	1150	{
1030	api_ready (coro_current);	1151	api_ready (coro_current);
1031	prepare_schedule (ta);	1152	prepare_schedule (aTHX_ ta);
1032	}	1153	}
1033		1154
1034	static int	1155	static int
1035	prepare_cede_notself (struct transfer_args *ta)	1156	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1036	{	1157	{
1037	if (coro_nready)	1158	if (coro_nready)
1038	{	1159	{
1039	SV *prev = SvRV (coro_current);	1160	SV *prev = SvRV (coro_current);
1040	prepare_schedule (ta);	1161	prepare_schedule (aTHX_ ta);
1041	api_ready (prev);	1162	api_ready (prev);
1042	return 1;	1163	return 1;
1043	}	1164	}
1044	else	1165	else
1045	return 0;	1166	return 0;
1046	}	1167	}
1047		1168
1048	static void	1169	static void
1049	api_schedule (void)	1170	api_schedule (void)
1050	{	1171	{
		1172	dTHX;
1051	struct transfer_args ta;	1173	struct transfer_args ta;
1052		1174
1053	prepare_schedule (&ta);	1175	prepare_schedule (aTHX_ &ta);
1054	TRANSFER (ta);	1176	TRANSFER (ta);
1055	}	1177	}
1056		1178
1057	static int	1179	static int
1058	api_cede (void)	1180	api_cede (void)
1059	{	1181	{
		1182	dTHX;
1060	struct transfer_args ta;	1183	struct transfer_args ta;
1061		1184
1062	prepare_cede (&ta);	1185	prepare_cede (aTHX_ &ta);
1063		1186
1064	if (ta.prev != ta.next)	1187	if (ta.prev != ta.next)
1065	{	1188	{
1066	TRANSFER (ta);	1189	TRANSFER (ta);
1067	return 1;	1190	return 1;
…		…
1071	}	1194	}
1072		1195
1073	static int	1196	static int
1074	api_cede_notself (void)	1197	api_cede_notself (void)
1075	{	1198	{
		1199	dTHX;
1076	struct transfer_args ta;	1200	struct transfer_args ta;
1077		1201
1078	if (prepare_cede_notself (&ta))	1202	if (prepare_cede_notself (aTHX_ &ta))
1079	{	1203	{
1080	TRANSFER (ta);	1204	TRANSFER (ta);
1081	return 1;	1205	return 1;
1082	}	1206	}
1083	else	1207	else
…		…
1099		1223
1100	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1224	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1101	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1225	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1102	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));	1226	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1103	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));	1227	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1228	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
		1229	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1104	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1230	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1105		1231
1106	main_mainstack = PL_mainstack;	1232	main_mainstack = PL_mainstack;
		1233	main_top_env = PL_top_env;
		1234
		1235	while (main_top_env->je_prev)
		1236	main_top_env = main_top_env->je_prev;
1107		1237
1108	coroapi.ver = CORO_API_VERSION;	1238	coroapi.ver = CORO_API_VERSION;
1109	coroapi.transfer = api_transfer;	1239	coroapi.transfer = api_transfer;
1110		1240
1111	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1241	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1119	HV *hv;	1249	HV *hv;
1120	int i;	1250	int i;
1121		1251
1122	Newz (0, coro, 1, struct coro);	1252	Newz (0, coro, 1, struct coro);
1123	coro->args = newAV ();	1253	coro->args = newAV ();
1124	coro->save = CORO_SAVE_ALL;	1254	coro->save = CORO_SAVE_DEF;
1125	coro->flags = CF_NEW;	1255	coro->flags = CF_NEW;
1126		1256
		1257	if (coro_first) coro_first->prev = coro;
		1258	coro->next = coro_first;
		1259	coro_first = coro;
		1260
1127	hv = newHV ();	1261	coro->hv = hv = newHV ();
1128	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1262	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1129	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1263	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1130		1264
1131	for (i = 1; i < items; i++)	1265	for (i = 1; i < items; i++)
1132	av_push (coro->args, newSVsv (ST (i)));	1266	av_push (coro->args, newSVsv (ST (i)));
…		…
1136		1270
1137	int	1271	int
1138	save (SV *coro, int new_save = -1)	1272	save (SV *coro, int new_save = -1)
1139	CODE:	1273	CODE:
1140	RETVAL = api_save (coro, new_save);	1274	RETVAL = api_save (coro, new_save);
		1275	OUTPUT:
		1276	RETVAL
		1277
		1278	int
		1279	save_also (SV *coro_sv, int save_also)
		1280	CODE:
		1281	{
		1282	struct coro *coro = SvSTATE (coro_sv);
		1283	RETVAL = coro->save;
		1284	coro->save \|= save_also;
		1285	}
1141	OUTPUT:	1286	OUTPUT:
1142	RETVAL	1287	RETVAL
1143		1288
1144	void	1289	void
1145	_set_stacklevel (...)	1290	_set_stacklevel (...)
…		…
1161		1306
1162	case 1:	1307	case 1:
1163	if (items != 2)	1308	if (items != 2)
1164	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1309	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1165		1310
1166	prepare_transfer (&ta, ST (0), ST (1));	1311	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1167	break;	1312	break;
1168		1313
1169	case 2:	1314	case 2:
1170	prepare_schedule (&ta);	1315	prepare_schedule (aTHX_ &ta);
1171	break;	1316	break;
1172		1317
1173	case 3:	1318	case 3:
1174	prepare_cede (&ta);	1319	prepare_cede (aTHX_ &ta);
1175	break;	1320	break;
1176		1321
1177	case 4:	1322	case 4:
1178	if (!prepare_cede_notself (&ta))	1323	if (!prepare_cede_notself (aTHX_ &ta))
1179	XSRETURN_EMPTY;	1324	XSRETURN_EMPTY;
1180		1325
1181	break;	1326	break;
1182	}	1327	}
1183		1328
1184	BARRIER;	1329	BARRIER;
1185	TRANSFER (ta);	1330	TRANSFER (ta);
1186	}
1187		1331
1188	void	1332	if (GIMME_V != G_VOID && ta.next != ta.prev)
1189	_clone_state_from (SV dst, SV src)	1333	XSRETURN_YES;
		1334	}
		1335
		1336	bool
		1337	_destroy (SV *coro_sv)
1190	CODE:	1338	CODE:
1191	{	1339	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1192	struct coro *coro_src = SvSTATE (src);	1340	OUTPUT:
1193		1341	RETVAL
1194	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1195
1196	++coro_src->refcnt;
1197	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1198	}
1199		1342
1200	void	1343	void
1201	_exit (code)	1344	_exit (code)
1202	int code	1345	int code
1203	PROTOTYPE: $	1346	PROTOTYPE: $
1204	CODE:	1347	CODE:
1205	_exit (code);	1348	_exit (code);
1206		1349
1207	int	1350	int
		1351	cctx_stacksize (int new_stacksize = 0)
		1352	CODE:
		1353	RETVAL = coro_stacksize;
		1354	if (new_stacksize)
		1355	coro_stacksize = new_stacksize;
		1356	OUTPUT:
		1357	RETVAL
		1358
		1359	int
1208	cctx_count ()	1360	cctx_count ()
1209	CODE:	1361	CODE:
1210	RETVAL = cctx_count;	1362	RETVAL = cctx_count;
1211	OUTPUT:	1363	OUTPUT:
1212	RETVAL	1364	RETVAL
…		…
1216	CODE:	1368	CODE:
1217	RETVAL = cctx_idle;	1369	RETVAL = cctx_idle;
1218	OUTPUT:	1370	OUTPUT:
1219	RETVAL	1371	RETVAL
1220		1372
		1373	void
		1374	list ()
		1375	PPCODE:
		1376	{
		1377	struct coro *coro;
		1378	for (coro = coro_first; coro; coro = coro->next)
		1379	if (coro->hv)
		1380	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1381	}
		1382
		1383	void
		1384	_eval (Coro::State coro, SV *coderef)
		1385	CODE:
		1386	{
		1387	if (coro->mainstack)
		1388	{
		1389	struct coro temp;
		1390	Zero (&temp, 1, struct coro);
		1391	temp.save = CORO_SAVE_ALL;
		1392
		1393	if (!(coro->flags & CF_RUNNING))
		1394	{
		1395	save_perl (aTHX_ &temp);
		1396	load_perl (aTHX_ coro);
		1397	}
		1398
		1399	{
		1400	dSP;
		1401	ENTER;
		1402	SAVETMPS;
		1403	PUSHMARK (SP);
		1404	PUTBACK;
		1405	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1406	SPAGAIN;
		1407	FREETMPS;
		1408	LEAVE;
		1409	PUTBACK;
		1410	}
		1411
		1412	if (!(coro->flags & CF_RUNNING))
		1413	{
		1414	save_perl (aTHX_ coro);
		1415	load_perl (aTHX_ &temp);
		1416	}
		1417	}
		1418	}
		1419
		1420	SV *
		1421	is_ready (Coro::State coro)
		1422	PROTOTYPE: $
		1423	ALIAS:
		1424	is_ready = CF_READY
		1425	is_running = CF_RUNNING
		1426	is_new = CF_NEW
		1427	is_destroyed = CF_DESTROYED
		1428	CODE:
		1429	RETVAL = boolSV (coro->flags & ix);
		1430	OUTPUT:
		1431	RETVAL
		1432
		1433	IV
		1434	rss (Coro::State coro)
		1435	PROTOTYPE: $
		1436	CODE:
		1437	RETVAL = coro_rss (coro);
		1438	OUTPUT:
		1439	RETVAL
		1440
		1441
1221	MODULE = Coro::State PACKAGE = Coro	1442	MODULE = Coro::State PACKAGE = Coro
1222		1443
1223	BOOT:	1444	BOOT:
1224	{	1445	{
1225	int i;	1446	int i;
		1447
		1448	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1449	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1450	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1451
		1452	coro_current = get_sv ("Coro::current", FALSE);
		1453	SvREADONLY_on (coro_current);
1226		1454
1227	coro_stash = gv_stashpv ("Coro", TRUE);	1455	coro_stash = gv_stashpv ("Coro", TRUE);
1228		1456
1229	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1457	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1230	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1458	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1231	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1459	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1232	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1460	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1233	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1461	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1234	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1462	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1235
1236	coro_current = get_sv ("Coro::current", FALSE);
1237	SvREADONLY_on (coro_current);
1238		1463
1239	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1464	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1240	coro_ready[i] = newAV ();	1465	coro_ready[i] = newAV ();
1241		1466
1242	{	1467	{
…		…
1292	CODE:	1517	CODE:
1293	RETVAL = boolSV (api_ready (self));	1518	RETVAL = boolSV (api_ready (self));
1294	OUTPUT:	1519	OUTPUT:
1295	RETVAL	1520	RETVAL
1296		1521
1297	SV *
1298	is_ready (SV *self)
1299	PROTOTYPE: $
1300	CODE:
1301	RETVAL = boolSV (api_is_ready (self));
1302	OUTPUT:
1303	RETVAL
1304
1305	int	1522	int
1306	nready (...)	1523	nready (...)
1307	PROTOTYPE:	1524	PROTOTYPE:
1308	CODE:	1525	CODE:
1309	RETVAL = coro_nready;	1526	RETVAL = coro_nready;
1310	OUTPUT:	1527	OUTPUT:
1311	RETVAL	1528	RETVAL
1312		1529
		1530	# for async_pool speedup
		1531	SV *
		1532	_pool_1 (...)
		1533	CODE:
		1534	{
		1535	int i, len;
		1536	HV hv = (HV )SvRV (coro_current);
		1537	AV *defav = GvAV (PL_defgv);
		1538	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1539	AV *invoke_av;
		1540
		1541	if (!invoke)
		1542	XSRETURN_EMPTY;
		1543
		1544	hv_store (hv, "desc", sizeof ("desc") - 1,
		1545	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1546
		1547	invoke_av = (AV *)SvRV (invoke);
		1548	len = av_len (invoke_av);
		1549
		1550	RETVAL = SvREFCNT_inc (AvARRAY (invoke_av)[0]);
		1551
		1552	if (len > 0)
		1553	{
		1554	av_clear (defav);
		1555	av_extend (defav, len);
		1556	for (i = 0; i < len; ++i)
		1557	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1558	}
		1559
		1560	SvREFCNT_dec (invoke);
		1561	}
		1562	OUTPUT:
		1563	RETVAL
		1564
		1565	void
		1566	_pool_2 (...)
		1567	CODE:
		1568	{
		1569	struct coro *coro = SvSTATE (coro_current);
		1570
		1571	if (coro_rss (coro) > SvIV (sv_pool_rss)
		1572	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1573	XSRETURN_YES;
		1574
		1575	av_clear (GvAV (PL_defgv));
		1576	hv_store (SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1577	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1578	coro->save = CORO_SAVE_DEF;
		1579	coro->prio = 0;
		1580	av_push (av_async_pool, newSVsv (coro_current));
		1581
		1582	XSRETURN_NO;
		1583	}
		1584
		1585
1313	MODULE = Coro::State PACKAGE = Coro::AIO	1586	MODULE = Coro::State PACKAGE = Coro::AIO
1314		1587
1315	SV *	1588	SV *
1316	_get_state ()	1589	_get_state ()
1317	CODE:	1590	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.131 by root, Fri Dec 29 11:37:49 2006 UTC vs. Revision 1.160 by root, Sat Sep 22 22:39:15 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.131 by root, Fri Dec 29 11:37:49 2006 UTC vs.
Revision 1.160 by root, Sat Sep 22 22:39:15 2007 UTC