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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.133 by root, Thu Jan 4 20:14:19 2007 UTC vs.
Revision 1.159 by root, Sat Sep 22 14:42:56 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 */
143	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */	155	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
144	JMPENV *top_env;	156	JMPENV *top_env;
145	coro_context cctx;	157	coro_context cctx;
146		158
147	int inuse;
148
149	#if USE_VALGRIND	159	#if CORO_USE_VALGRIND
150	int valgrind_id;	160	int valgrind_id;
151	#endif	161	#endif
		162	char inuse, mapped;
152	} coro_cctx;	163	} coro_cctx;
153		164
154	enum {	165	enum {
155	CF_RUNNING = 0x0001, /* coroutine is running */	166	CF_RUNNING = 0x0001, /* coroutine is running */
156	CF_READY = 0x0002, /* coroutine is ready */	167	CF_READY = 0x0002, /* coroutine is ready */
…		…
171		182
172	/* optionally saved, might be zero */	183	/* optionally saved, might be zero */
173	AV defav; / @_ */	184	AV defav; / @_ */
174	SV defsv; / $_ */	185	SV defsv; / $_ */
175	SV errsv; / $@ */	186	SV errsv; / $@ */
		187	GV deffh; / default filehandle */
176	SV irssv; / $/ */	188	SV irssv; / $/ */
177	SV irssv_sv; / real $/ cache */	189	SV irssv_sv; / real $/ cache */
178		190
179	#define VAR(name,type) type name;	191	#define VAR(name,type) type name;
180	# include "state.h"	192	# include "state.h"
181	#undef VAR	193	#undef VAR
182		194
183	/* coro process data */	195	/* coro process data */
184	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 */
185	};	201	};
186		202
187	typedef struct coro *Coro__State;	203	typedef struct coro *Coro__State;
188	typedef struct coro *Coro__State_or_hashref;	204	typedef struct coro *Coro__State_or_hashref;
189		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
190	static AV *	223	static AV *
191	coro_clone_padlist (CV *cv)	224	coro_clone_padlist (pTHX_ CV *cv)
192	{	225	{
193	AV *padlist = CvPADLIST (cv);	226	AV *padlist = CvPADLIST (cv);
194	AV newpadlist, newpad;	227	AV newpadlist, newpad;
195		228
196	newpadlist = newAV ();	229	newpadlist = newAV ();
…		…
208		241
209	return newpadlist;	242	return newpadlist;
210	}	243	}
211		244
212	static void	245	static void
213	free_padlist (AV *padlist)	246	free_padlist (pTHX_ AV *padlist)
214	{	247	{
215	/* may be during global destruction */	248	/* may be during global destruction */
216	if (SvREFCNT (padlist))	249	if (SvREFCNT (padlist))
217	{	250	{
218	I32 i = AvFILLp (padlist);	251	I32 i = AvFILLp (padlist);
…		…
239	AV *padlist;	272	AV *padlist;
240	AV av = (AV )mg->mg_obj;	273	AV av = (AV )mg->mg_obj;
241		274
242	/* casting is fun. */	275	/* casting is fun. */
243	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	276	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
244	free_padlist (padlist);	277	free_padlist (aTHX_ padlist);
245		278
246	SvREFCNT_dec (av);	279	SvREFCNT_dec (av);
247		280
248	return 0;	281	return 0;
249	}	282	}
…		…
259	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	292	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
260	: 0	293	: 0
261		294
262	/* the next two functions merely cache the padlists */	295	/* the next two functions merely cache the padlists */
263	static void	296	static void
264	get_padlist (CV *cv)	297	get_padlist (pTHX_ CV *cv)
265	{	298	{
266	MAGIC *mg = CORO_MAGIC (cv);	299	MAGIC *mg = CORO_MAGIC (cv);
267	AV *av;	300	AV *av;
268		301
269	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	302	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
270	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	303	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
271	else	304	else
272	{	305	{
273	#if PREFER_PERL_FUNCTIONS	306	#if CORO_PREFER_PERL_FUNCTIONS
274	/* this is probably cleaner, but also slower? */	307	/* this is probably cleaner, but also slower? */
275	CV *cp = Perl_cv_clone (cv);	308	CV *cp = Perl_cv_clone (cv);
276	CvPADLIST (cv) = CvPADLIST (cp);	309	CvPADLIST (cv) = CvPADLIST (cp);
277	CvPADLIST (cp) = 0;	310	CvPADLIST (cp) = 0;
278	SvREFCNT_dec (cp);	311	SvREFCNT_dec (cp);
279	#else	312	#else
280	CvPADLIST (cv) = coro_clone_padlist (cv);	313	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
281	#endif	314	#endif
282	}	315	}
283	}	316	}
284		317
285	static void	318	static void
286	put_padlist (CV *cv)	319	put_padlist (pTHX_ CV *cv)
287	{	320	{
288	MAGIC *mg = CORO_MAGIC (cv);	321	MAGIC *mg = CORO_MAGIC (cv);
289	AV *av;	322	AV *av;
290		323
291	if (!mg)	324	if (!mg)
…		…
302	av_extend (av, AvMAX (av) + 1);	335	av_extend (av, AvMAX (av) + 1);
303		336
304	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	337	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
305	}	338	}
306		339
		340	/ load & save, init *****************************************************/
		341
307	#define SB do {	342	#define SB do {
308	#define SE } while (0)	343	#define SE } while (0)
309		344
310	#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
311		346
312	static void	347	static void
313	load_perl (Coro__State c)	348	load_perl (pTHX_ Coro__State c)
314	{	349	{
315	#define VAR(name,type) PL_ ## name = c->name;	350	#define VAR(name,type) PL_ ## name = c->name;
316	# include "state.h"	351	# include "state.h"
317	#undef VAR	352	#undef VAR
318		353
319	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	354	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
320	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	355	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
321	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
322	if (c->irssv)	359	if (c->irssv)
323	{	360	{
324	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))	361	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		362	{
325	SvREFCNT_dec (c->irssv);	363	SvREFCNT_dec (c->irssv);
		364	c->irssv = 0;
		365	}
326	else	366	else
327	{	367	{
328	REPLACE_SV (PL_rs, c->irssv);	368	REPLACE_SV (PL_rs, c->irssv);
329	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);	369	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
330	sv_setsv (c->irssv_sv, PL_rs);	370	sv_setsv (c->irssv_sv, PL_rs);
…		…
336	CV *cv;	376	CV *cv;
337		377
338	/* now do the ugly restore mess */	378	/* now do the ugly restore mess */
339	while ((cv = (CV *)POPs))	379	while ((cv = (CV *)POPs))
340	{	380	{
341	put_padlist (cv); /* mark this padlist as available */	381	put_padlist (aTHX_ cv); /* mark this padlist as available */
342	CvDEPTH (cv) = PTR2IV (POPs);	382	CvDEPTH (cv) = PTR2IV (POPs);
343	CvPADLIST (cv) = (AV *)POPs;	383	CvPADLIST (cv) = (AV *)POPs;
344	}	384	}
345		385
346	PUTBACK;	386	PUTBACK;
347	}	387	}
348	}	388	}
349		389
350	static void	390	static void
351	save_perl (Coro__State c)	391	save_perl (pTHX_ Coro__State c)
352	{	392	{
353	{	393	{
354	dSP;	394	dSP;
355	I32 cxix = cxstack_ix;	395	I32 cxix = cxstack_ix;
356	PERL_CONTEXT *ccstk = cxstack;	396	PERL_CONTEXT *ccstk = cxstack;
…		…
359	/*	399	/*
360	* 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
361	* (and reinitialize) all cv's in the whole callchain :(	401	* (and reinitialize) all cv's in the whole callchain :(
362	*/	402	*/
363		403
364	EXTEND (SP, 3 + 1);
365	PUSHs (Nullsv);	404	XPUSHs (Nullsv);
366	/* this loop was inspired by pp_caller */	405	/* this loop was inspired by pp_caller */
367	for (;;)	406	for (;;)
368	{	407	{
369	while (cxix >= 0)	408	while (cxix >= 0)
370	{	409	{
371	PERL_CONTEXT *cx = &ccstk[cxix--];	410	PERL_CONTEXT *cx = &ccstk[cxix--];
372		411
373	if (CxTYPE (cx) == CXt_SUB)	412	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
374	{	413	{
375	CV *cv = cx->blk_sub.cv;	414	CV *cv = cx->blk_sub.cv;
376		415
377	if (CvDEPTH (cv))	416	if (CvDEPTH (cv))
378	{	417	{
…		…
380	PUSHs ((SV *)CvPADLIST (cv));	419	PUSHs ((SV *)CvPADLIST (cv));
381	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	420	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
382	PUSHs ((SV *)cv);	421	PUSHs ((SV *)cv);
383		422
384	CvDEPTH (cv) = 0;	423	CvDEPTH (cv) = 0;
385	get_padlist (cv);	424	get_padlist (aTHX_ cv);
386	}	425	}
387	}	426	}
388	}	427	}
389		428
390	if (top_si->si_type == PERLSI_MAIN)	429	if (top_si->si_type == PERLSI_MAIN)
391	break;	430	break;
392		431
393	top_si = top_si->si_prev;	432	top_si = top_si->si_prev;
394	ccstk = top_si->si_cxstack;	433	ccstk = top_si->si_cxstack;
395	cxix = top_si->si_cxix;	434	cxix = top_si->si_cxix;
396	}	435	}
397		436
398	PUTBACK;	437	PUTBACK;
399	}	438	}
400		439
401	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;
402	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	441	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
403	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;
404	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;
405		445
406	#define VAR(name,type)c->name = PL_ ## name;	446	#define VAR(name,type)c->name = PL_ ## name;
407	# include "state.h"	447	# include "state.h"
408	#undef VAR	448	#undef VAR
…		…
412	* allocate various perl stacks. This is an exact copy	452	* allocate various perl stacks. This is an exact copy
413	* of perl.c:init_stacks, except that it uses less memory	453	* of perl.c:init_stacks, except that it uses less memory
414	* on the (sometimes correct) assumption that coroutines do	454	* on the (sometimes correct) assumption that coroutines do
415	* not usually need a lot of stackspace.	455	* not usually need a lot of stackspace.
416	*/	456	*/
417	#if PREFER_PERL_FUNCTIONS	457	#if CORO_PREFER_PERL_FUNCTIONS
418	# define coro_init_stacks init_stacks	458	# define coro_init_stacks init_stacks
419	#else	459	#else
420	static void	460	static void
421	coro_init_stacks ()	461	coro_init_stacks (pTHX)
422	{	462	{
423	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	463	PL_curstackinfo = new_stackinfo(64, 6);
424	PL_curstackinfo->si_type = PERLSI_MAIN;	464	PL_curstackinfo->si_type = PERLSI_MAIN;
425	PL_curstack = PL_curstackinfo->si_stack;	465	PL_curstack = PL_curstackinfo->si_stack;
426	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	466	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
427		467
428	PL_stack_base = AvARRAY(PL_curstack);	468	PL_stack_base = AvARRAY(PL_curstack);
429	PL_stack_sp = PL_stack_base;	469	PL_stack_sp = PL_stack_base;
430	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	470	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
431		471
432	New(50,PL_tmps_stack,128,SV*);	472	New(50,PL_tmps_stack,64,SV*);
433	PL_tmps_floor = -1;	473	PL_tmps_floor = -1;
434	PL_tmps_ix = -1;	474	PL_tmps_ix = -1;
435	PL_tmps_max = 128;	475	PL_tmps_max = 64;
436		476
437	New(54,PL_markstack,32,I32);	477	New(54,PL_markstack,16,I32);
438	PL_markstack_ptr = PL_markstack;	478	PL_markstack_ptr = PL_markstack;
439	PL_markstack_max = PL_markstack + 32;	479	PL_markstack_max = PL_markstack + 16;
440		480
441	#ifdef SET_MARK_OFFSET	481	#ifdef SET_MARK_OFFSET
442	SET_MARK_OFFSET;	482	SET_MARK_OFFSET;
443	#endif	483	#endif
444		484
445	New(54,PL_scopestack,32,I32);	485	New(54,PL_scopestack,16,I32);
446	PL_scopestack_ix = 0;	486	PL_scopestack_ix = 0;
447	PL_scopestack_max = 32;	487	PL_scopestack_max = 16;
448		488
449	New(54,PL_savestack,64,ANY);	489	New(54,PL_savestack,64,ANY);
450	PL_savestack_ix = 0;	490	PL_savestack_ix = 0;
451	PL_savestack_max = 64;	491	PL_savestack_max = 64;
452		492
453	#if !PERL_VERSION_ATLEAST (5,9,0)	493	#if !PERL_VERSION_ATLEAST (5,9,0)
454	New(54,PL_retstack,16,OP*);	494	New(54,PL_retstack,4,OP*);
455	PL_retstack_ix = 0;	495	PL_retstack_ix = 0;
456	PL_retstack_max = 16;	496	PL_retstack_max = 4;
457	#endif	497	#endif
458	}	498	}
459	#endif	499	#endif
460		500
461	/*	501	/*
462	* destroy the stacks, the callchain etc...	502	* destroy the stacks, the callchain etc...
463	*/	503	*/
464	static void	504	static void
465	coro_destroy_stacks ()	505	coro_destroy_stacks (pTHX)
466	{	506	{
467	if (!IN_DESTRUCT)	507	if (!IN_DESTRUCT)
468	{	508	{
469	/* restore all saved variables and stuff */	509	/* restore all saved variables and stuff */
470	LEAVE_SCOPE (0);	510	LEAVE_SCOPE (0);
…		…
472		512
473	/* free all temporaries */	513	/* free all temporaries */
474	FREETMPS;	514	FREETMPS;
475	assert (PL_tmps_ix == -1);	515	assert (PL_tmps_ix == -1);
476		516
		517	/* unwind all extra stacks */
477	POPSTACK_TO (PL_mainstack);	518	POPSTACK_TO (PL_mainstack);
		519
		520	/* unwind main stack */
		521	dounwind (-1);
478	}	522	}
479		523
480	while (PL_curstackinfo->si_next)	524	while (PL_curstackinfo->si_next)
481	PL_curstackinfo = PL_curstackinfo->si_next;	525	PL_curstackinfo = PL_curstackinfo->si_next;
482		526
…		…
499	#if !PERL_VERSION_ATLEAST (5,9,0)	543	#if !PERL_VERSION_ATLEAST (5,9,0)
500	Safefree (PL_retstack);	544	Safefree (PL_retstack);
501	#endif	545	#endif
502	}	546	}
503		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
504	static void	581	static void
505	setup_coro (struct coro *coro)	582	setup_coro (pTHX_ struct coro *coro)
506	{	583	{
507	/*	584	/*
508	* emulate part of the perl startup here.	585	* emulate part of the perl startup here.
509	*/	586	*/
510
511	coro_init_stacks ();	587	coro_init_stacks (aTHX);
512		588
513	PL_curcop = &PL_compiling;	589	PL_curcop = &PL_compiling;
514	PL_in_eval = EVAL_NULL;	590	PL_in_eval = EVAL_NULL;
		591	PL_comppad = 0;
515	PL_curpm = 0;	592	PL_curpm = 0;
516	PL_localizing = 0;	593	PL_localizing = 0;
517	PL_dirty = 0;	594	PL_dirty = 0;
518	PL_restartop = 0;	595	PL_restartop = 0;
519		596
…		…
527	Zero (&myop, 1, LOGOP);	604	Zero (&myop, 1, LOGOP);
528	myop.op_next = Nullop;	605	myop.op_next = Nullop;
529	myop.op_flags = OPf_WANT_VOID;	606	myop.op_flags = OPf_WANT_VOID;
530		607
531	PUSHMARK (SP);	608	PUSHMARK (SP);
532	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	609	XPUSHs (av_shift (GvAV (PL_defgv)));
533	PUTBACK;	610	PUTBACK;
534	PL_op = (OP *)&myop;	611	PL_op = (OP *)&myop;
535	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	612	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
536	SPAGAIN;	613	SPAGAIN;
537	}	614	}
538		615
539	ENTER; /* necessary e.g. for dounwind */	616	ENTER; /* necessary e.g. for dounwind */
540	}	617	}
541		618
542	static void	619	static void
543	free_coro_mortal ()	620	free_coro_mortal (pTHX)
544	{	621	{
545	if (coro_mortal)	622	if (coro_mortal)
546	{	623	{
547	SvREFCNT_dec (coro_mortal);	624	SvREFCNT_dec (coro_mortal);
548	coro_mortal = 0;	625	coro_mortal = 0;
549	}	626	}
550	}	627	}
551		628
552	/* 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 */
553	static void NOINLINE	632	static void NOINLINE
554	prepare_cctx (coro_cctx *cctx)	633	prepare_cctx (pTHX_ coro_cctx *cctx)
555	{	634	{
556	dSP;	635	dSP;
557	LOGOP myop;	636	LOGOP myop;
558		637
559	Zero (&myop, 1, LOGOP);	638	Zero (&myop, 1, LOGOP);
…		…
568	PL_op = (OP *)&myop;	647	PL_op = (OP *)&myop;
569	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	648	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
570	SPAGAIN;	649	SPAGAIN;
571	}	650	}
572		651
		652	/*
		653	* this is a _very_ stripped down perl interpreter ;)
		654	*/
573	static void	655	static void
574	coro_run (void *arg)	656	coro_run (void *arg)
575	{	657	{
		658	dTHX;
		659
576	/* coro_run is the alternative tail of transfer(), so unlock here. */	660	/* coro_run is the alternative tail of transfer(), so unlock here. */
577	UNLOCK;	661	UNLOCK;
578		662
579	/*
580	* this is a _very_ stripped down perl interpreter ;)
581	*/
582	PL_top_env = &PL_start_env;	663	PL_top_env = &PL_start_env;
583		664
584	/* inject call to cctx_init */	665	/* inject a fake subroutine call to cctx_init */
585	prepare_cctx ((coro_cctx *)arg);	666	prepare_cctx (aTHX_ (coro_cctx *)arg);
586		667
587	/* 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 */
588	PL_restartop = PL_op;	669	PL_restartop = PL_op;
589	perl_run (PL_curinterp);	670	perl_run (PL_curinterp);
590		671
591	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	672	/*
592	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 */
593	}	681	}
594		682
595	static coro_cctx *	683	static coro_cctx *
596	cctx_new ()	684	cctx_new ()
597	{	685	{
598	coro_cctx *cctx;	686	coro_cctx *cctx;
		687	void *stack_start;
		688	size_t stack_size;
599		689
600	++cctx_count;	690	++cctx_count;
601		691
602	Newz (0, cctx, 1, coro_cctx);	692	Newz (0, cctx, 1, coro_cctx);
603		693
604	#if HAVE_MMAP	694	#if HAVE_MMAP
605		695
606	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	696	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
607	/* mmap supposedly does allocate-on-write for us */	697	/* mmap supposedly does allocate-on-write for us */
608	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	698	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
609		699
610	if (cctx->sptr == (void *)-1)	700	if (cctx->sptr != (void *)-1)
611	{
612	perror ("FATAL: unable to mmap stack for coroutine");
613	_exit (EXIT_FAILURE);
614	}	701	{
615
616	# if STACKGUARD	702	# if CORO_STACKGUARD
617	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	703	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
618	# 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);
619		714
620	#else
621
622	cctx->ssize = STACKSIZE * (long)sizeof (long);
623	New (0, cctx->sptr, STACKSIZE, long);
624
625	if (!cctx->sptr)	715	if (!cctx->sptr)
626	{	716	{
627	perror ("FATAL: unable to malloc stack for coroutine");	717	perror ("FATAL: unable to allocate stack for coroutine");
628	_exit (EXIT_FAILURE);	718	_exit (EXIT_FAILURE);
629	}	719	}
630		720
631	#endif	721	stack_start = cctx->sptr;
		722	stack_size = cctx->ssize;
		723	}
632		724
633	#if USE_VALGRIND	725	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
634	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
635	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
636	cctx->ssize + (char *)cctx->sptr
637	);
638	#endif
639
640	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	726	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
641		727
642	return cctx;	728	return cctx;
643	}	729	}
644		730
645	static void	731	static void
…		…
648	if (!cctx)	734	if (!cctx)
649	return;	735	return;
650		736
651	--cctx_count;	737	--cctx_count;
652		738
653	#if USE_VALGRIND	739	#if CORO_USE_VALGRIND
654	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	740	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
655	#endif	741	#endif
656		742
657	#if HAVE_MMAP	743	#if HAVE_MMAP
		744	if (cctx->mapped)
658	munmap (cctx->sptr, cctx->ssize);	745	munmap (cctx->sptr, cctx->ssize);
659	#else	746	else
		747	#endif
660	Safefree (cctx->sptr);	748	Safefree (cctx->sptr);
661	#endif
662		749
663	Safefree (cctx);	750	Safefree (cctx);
664	}	751	}
665		752
666	static coro_cctx *	753	static coro_cctx *
667	cctx_get ()	754	cctx_get (pTHX)
668	{	755	{
669	coro_cctx *cctx;
670
671	if (cctx_first)	756	while (cctx_first)
672	{	757	{
673	cctx = cctx_first;	758	coro_cctx *cctx = cctx_first;
674	cctx_first = cctx->next;	759	cctx_first = cctx->next;
675	--cctx_idle;	760	--cctx_idle;
		761
		762	if (cctx->ssize >= coro_stacksize)
		763	return cctx;
		764
		765	cctx_destroy (cctx);
676	}	766	}
677	else	767
678	{
679	cctx = cctx_new ();
680	PL_op = PL_op->op_next;	768	PL_op = PL_op->op_next;
681	}
682
683	return cctx;	769	return cctx_new ();
684	}	770	}
685		771
686	static void	772	static void
687	cctx_put (coro_cctx *cctx)	773	cctx_put (coro_cctx *cctx)
688	{	774	{
…		…
700	++cctx_idle;	786	++cctx_idle;
701	cctx->next = cctx_first;	787	cctx->next = cctx_first;
702	cctx_first = cctx;	788	cctx_first = cctx;
703	}	789	}
704		790
		791	/ coroutine switching ***************************************************/
		792
705	/* never call directly, always through the coro_state_transfer global variable */	793	/* never call directly, always through the coro_state_transfer global variable */
706	static void NOINLINE	794	static void NOINLINE
707	transfer (struct coro prev, struct coro next)	795	transfer (pTHX_ struct coro prev, struct coro next)
708	{	796	{
709	dSTACKLEVEL;	797	dSTACKLEVEL;
710		798
711	/* sometimes transfer is only called to set idle_sp */	799	/* sometimes transfer is only called to set idle_sp */
712	if (!next)	800	if (!next)
…		…
745	if (next->flags & CF_NEW)	833	if (next->flags & CF_NEW)
746	{	834	{
747	/* need to start coroutine */	835	/* need to start coroutine */
748	next->flags &= ~CF_NEW;	836	next->flags &= ~CF_NEW;
749	/* first get rid of the old state */	837	/* first get rid of the old state */
750	save_perl (prev);	838	save_perl (aTHX_ prev);
751	/* setup coroutine call */	839	/* setup coroutine call */
752	setup_coro (next);	840	setup_coro (aTHX_ next);
753	/* need a new stack */	841	/* need a new stack */
754	assert (!next->cctx);	842	assert (!next->cctx);
755	}	843	}
756	else	844	else
757	{	845	{
758	/* coroutine already started */	846	/* coroutine already started */
759	save_perl (prev);	847	save_perl (aTHX_ prev);
760	load_perl (next);	848	load_perl (aTHX_ next);
761	}	849	}
762		850
763	prev__cctx = prev->cctx;	851	prev__cctx = prev->cctx;
764		852
765	/* possibly "free" the cctx */	853	/* possibly "free" the cctx */
…		…
774	prev__cctx->inuse = 0;	862	prev__cctx->inuse = 0;
775	}	863	}
776		864
777	if (!next->cctx)	865	if (!next->cctx)
778	{	866	{
779	next->cctx = cctx_get ();	867	next->cctx = cctx_get (aTHX);
780	assert (!next->cctx->inuse);	868	assert (!next->cctx->inuse);
781	next->cctx->inuse = 1;	869	next->cctx->inuse = 1;
782	}	870	}
783		871
784	if (prev__cctx != next->cctx)	872	if (prev__cctx != next->cctx)
…		…
786	prev__cctx->top_env = PL_top_env;	874	prev__cctx->top_env = PL_top_env;
787	PL_top_env = next->cctx->top_env;	875	PL_top_env = next->cctx->top_env;
788	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	876	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
789	}	877	}
790		878
791	free_coro_mortal ();	879	free_coro_mortal (aTHX);
792	UNLOCK;	880	UNLOCK;
793	}	881	}
794	}	882	}
795		883
796	struct transfer_args	884	struct transfer_args
797	{	885	{
798	struct coro prev, next;	886	struct coro prev, next;
799	};	887	};
800		888
801	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	889	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		890
		891	/ high level stuff ******************************************************/
802		892
803	static int	893	static int
804	coro_state_destroy (struct coro *coro)	894	coro_state_destroy (pTHX_ struct coro *coro)
805	{	895	{
806	if (coro->refcnt--)
807	return 0;
808
809	if (coro->flags & CF_DESTROYED)	896	if (coro->flags & CF_DESTROYED)
810	return 0;	897	return 0;
811		898
812	coro->flags \|= CF_DESTROYED;	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 */
813		911
814	if (coro->mainstack && coro->mainstack != main_mainstack)	912	if (coro->mainstack && coro->mainstack != main_mainstack)
815	{	913	{
		914	struct coro temp;
		915
816	assert (!(coro->flags & CF_RUNNING));	916	assert (!(coro->flags & CF_RUNNING));
817		917
818	struct coro temp;
819	Zero (&temp, 1, struct coro);	918	Zero (&temp, 1, struct coro);
820	temp.save = CORO_SAVE_ALL;	919	temp.save = CORO_SAVE_ALL;
821		920
822	if (coro->flags & CF_RUNNING)	921	if (coro->flags & CF_RUNNING)
823	croak ("FATAL: tried to destroy currently running coroutine");	922	croak ("FATAL: tried to destroy currently running coroutine");
824		923
825	save_perl (&temp);	924	save_perl (aTHX_ &temp);
826	load_perl (coro);	925	load_perl (aTHX_ coro);
827		926
828	coro_destroy_stacks ();	927	coro_destroy_stacks (aTHX);
829		928
830	load_perl (&temp); /* this will get rid of defsv etc.. */	929	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
831		930
832	coro->mainstack = 0;	931	coro->mainstack = 0;
833	}	932	}
834		933
835	cctx_destroy (coro->cctx);	934	cctx_destroy (coro->cctx);
836	SvREFCNT_dec (coro->args);	935	SvREFCNT_dec (coro->args);
837		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
838	return 1;	941	return 1;
839	}	942	}
840		943
841	static int	944	static int
842	coro_state_clear (pTHX_ SV sv, MAGIC mg)	945	coro_state_free (pTHX_ SV sv, MAGIC mg)
843	{	946	{
844	struct coro coro = (struct coro )mg->mg_ptr;	947	struct coro coro = (struct coro )mg->mg_ptr;
845	mg->mg_ptr = 0;	948	mg->mg_ptr = 0;
846		949
		950	coro->hv = 0;
		951
		952	if (--coro->refcnt < 0)
		953	{
847	coro_state_destroy (coro);	954	coro_state_destroy (aTHX_ coro);
848
849	if (!coro->refcnt)
850	Safefree (coro);	955	Safefree (coro);
		956	}
851		957
852	return 0;	958	return 0;
853	}	959	}
854		960
855	static int	961	static int
…		…
862	return 0;	968	return 0;
863	}	969	}
864		970
865	static MGVTBL coro_state_vtbl = {	971	static MGVTBL coro_state_vtbl = {
866	0, 0, 0, 0,	972	0, 0, 0, 0,
867	coro_state_clear,	973	coro_state_free,
868	0,	974	0,
869	#ifdef MGf_DUP	975	#ifdef MGf_DUP
870	coro_state_dup,	976	coro_state_dup,
871	#else	977	#else
872	# define MGf_DUP 0	978	# define MGf_DUP 0
873	#endif	979	#endif
874	};	980	};
875		981
876	static struct coro *	982	static struct coro *
877	SvSTATE (SV *coro)	983	SvSTATE_ (pTHX_ SV *coro)
878	{	984	{
879	HV *stash;	985	HV *stash;
880	MAGIC *mg;	986	MAGIC *mg;
881		987
882	if (SvROK (coro))	988	if (SvROK (coro))
…		…
888	/* very slow, but rare, check */	994	/* very slow, but rare, check */
889	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	995	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
890	croak ("Coro::State object required");	996	croak ("Coro::State object required");
891	}	997	}
892		998
893	mg = SvMAGIC (coro);	999	mg = CORO_MAGIC (coro);
894	assert (mg->mg_type == PERL_MAGIC_ext);
895	return (struct coro *)mg->mg_ptr;	1000	return (struct coro *)mg->mg_ptr;
896	}	1001	}
897		1002
		1003	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		1004
898	static void	1005	static void
899	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)
900	{	1007	{
901	ta->prev = SvSTATE (prev_sv);	1008	ta->prev = SvSTATE (prev_sv);
902	ta->next = SvSTATE (next_sv);	1009	ta->next = SvSTATE (next_sv);
903	}	1010	}
904		1011
905	static void	1012	static void
906	api_transfer (SV prev_sv, SV next_sv)	1013	api_transfer (SV prev_sv, SV next_sv)
907	{	1014	{
		1015	dTHX;
908	struct transfer_args ta;	1016	struct transfer_args ta;
909		1017
910	prepare_transfer (&ta, prev_sv, next_sv);	1018	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
911	TRANSFER (ta);	1019	TRANSFER (ta);
912	}	1020	}
913		1021
914	static int	1022	static int
915	api_save (SV *coro_sv, int new_save)	1023	api_save (SV *coro_sv, int new_save)
916	{	1024	{
		1025	dTHX;
917	struct coro *coro = SvSTATE (coro_sv);	1026	struct coro *coro = SvSTATE (coro_sv);
918	int old_save = coro->save;	1027	int old_save = coro->save;
919		1028
920	if (new_save >= 0)	1029	if (new_save >= 0)
921	coro->save = new_save;	1030	coro->save = new_save;
…		…
923	return old_save;	1032	return old_save;
924	}	1033	}
925		1034
926	/ Coro ******************************************************************/	1035	/ Coro ******************************************************************/
927		1036
928	#define PRIO_MAX 3
929	#define PRIO_HIGH 1
930	#define PRIO_NORMAL 0
931	#define PRIO_LOW -1
932	#define PRIO_IDLE -3
933	#define PRIO_MIN -4
934
935	/* for Coro.pm */
936	static SV *coro_current;
937	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
938	static int coro_nready;
939
940	static void	1037	static void
941	coro_enq (SV *coro_sv)	1038	coro_enq (pTHX_ SV *coro_sv)
942	{	1039	{
943	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);
944	coro_nready++;
945	}	1041	}
946		1042
947	static SV *	1043	static SV *
948	coro_deq (int min_prio)	1044	coro_deq (pTHX_ int min_prio)
949	{	1045	{
950	int prio = PRIO_MAX - PRIO_MIN;	1046	int prio = PRIO_MAX - PRIO_MIN;
951		1047
952	min_prio -= PRIO_MIN;	1048	min_prio -= PRIO_MIN;
953	if (min_prio < 0)	1049	if (min_prio < 0)
954	min_prio = 0;	1050	min_prio = 0;
955		1051
956	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1052	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
957	if (AvFILLp (coro_ready [prio]) >= 0)	1053	if (AvFILLp (coro_ready [prio]) >= 0)
958	{
959	coro_nready--;
960	return av_shift (coro_ready [prio]);	1054	return av_shift (coro_ready [prio]);
961	}
962		1055
963	return 0;	1056	return 0;
964	}	1057	}
965		1058
966	static int	1059	static int
967	api_ready (SV *coro_sv)	1060	api_ready (SV *coro_sv)
968	{	1061	{
		1062	dTHX;
969	struct coro *coro;	1063	struct coro *coro;
970		1064
971	if (SvROK (coro_sv))	1065	if (SvROK (coro_sv))
972	coro_sv = SvRV (coro_sv);	1066	coro_sv = SvRV (coro_sv);
973		1067
…		…
977	return 0;	1071	return 0;
978		1072
979	coro->flags \|= CF_READY;	1073	coro->flags \|= CF_READY;
980		1074
981	LOCK;	1075	LOCK;
982	coro_enq (SvREFCNT_inc (coro_sv));	1076	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
		1077	++coro_nready;
983	UNLOCK;	1078	UNLOCK;
984		1079
985	return 1;	1080	return 1;
986	}	1081	}
987		1082
988	static int	1083	static int
989	api_is_ready (SV *coro_sv)	1084	api_is_ready (SV *coro_sv)
990	{	1085	{
		1086	dTHX;
991	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1087	return !!(SvSTATE (coro_sv)->flags & CF_READY);
992	}	1088	}
993		1089
994	static void	1090	static void
995	prepare_schedule (struct transfer_args *ta)	1091	prepare_schedule (pTHX_ struct transfer_args *ta)
996	{	1092	{
997	SV prev_sv, next_sv;	1093	SV prev_sv, next_sv;
998		1094
999	for (;;)	1095	for (;;)
1000	{	1096	{
1001	LOCK;	1097	LOCK;
1002	next_sv = coro_deq (PRIO_MIN);	1098	next_sv = coro_deq (aTHX_ PRIO_MIN);
1003	UNLOCK;
1004		1099
1005	/* nothing to schedule: call the idle handler */	1100	/* nothing to schedule: call the idle handler */
1006	if (!next_sv)	1101	if (!next_sv)
1007	{	1102	{
1008	dSP;	1103	dSP;
		1104	UNLOCK;
1009		1105
1010	ENTER;	1106	ENTER;
1011	SAVETMPS;	1107	SAVETMPS;
1012		1108
1013	PUSHMARK (SP);	1109	PUSHMARK (SP);
…		…
1022	ta->next = SvSTATE (next_sv);	1118	ta->next = SvSTATE (next_sv);
1023		1119
1024	/* cannot transfer to destroyed coros, skip and look for next */	1120	/* cannot transfer to destroyed coros, skip and look for next */
1025	if (ta->next->flags & CF_DESTROYED)	1121	if (ta->next->flags & CF_DESTROYED)
1026	{	1122	{
		1123	UNLOCK;
1027	SvREFCNT_dec (next_sv);	1124	SvREFCNT_dec (next_sv);
		1125	/* coro_nready is already taken care of by destroy */
1028	continue;	1126	continue;
1029	}	1127	}
1030		1128
		1129	--coro_nready;
		1130	UNLOCK;
1031	break;	1131	break;
1032	}	1132	}
1033		1133
1034	/* free this only after the transfer */	1134	/* free this only after the transfer */
1035	prev_sv = SvRV (coro_current);	1135	prev_sv = SvRV (coro_current);
…		…
1038		1138
1039	assert (ta->next->flags & CF_READY);	1139	assert (ta->next->flags & CF_READY);
1040	ta->next->flags &= ~CF_READY;	1140	ta->next->flags &= ~CF_READY;
1041		1141
1042	LOCK;	1142	LOCK;
1043	free_coro_mortal ();	1143	free_coro_mortal (aTHX);
1044	coro_mortal = prev_sv;	1144	coro_mortal = prev_sv;
1045	UNLOCK;	1145	UNLOCK;
1046	}	1146	}
1047		1147
1048	static void	1148	static void
1049	prepare_cede (struct transfer_args *ta)	1149	prepare_cede (pTHX_ struct transfer_args *ta)
1050	{	1150	{
1051	api_ready (coro_current);	1151	api_ready (coro_current);
1052	prepare_schedule (ta);	1152	prepare_schedule (aTHX_ ta);
1053	}	1153	}
1054		1154
1055	static int	1155	static int
1056	prepare_cede_notself (struct transfer_args *ta)	1156	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1057	{	1157	{
1058	if (coro_nready)	1158	if (coro_nready)
1059	{	1159	{
1060	SV *prev = SvRV (coro_current);	1160	SV *prev = SvRV (coro_current);
1061	prepare_schedule (ta);	1161	prepare_schedule (aTHX_ ta);
1062	api_ready (prev);	1162	api_ready (prev);
1063	return 1;	1163	return 1;
1064	}	1164	}
1065	else	1165	else
1066	return 0;	1166	return 0;
1067	}	1167	}
1068		1168
1069	static void	1169	static void
1070	api_schedule (void)	1170	api_schedule (void)
1071	{	1171	{
		1172	dTHX;
1072	struct transfer_args ta;	1173	struct transfer_args ta;
1073		1174
1074	prepare_schedule (&ta);	1175	prepare_schedule (aTHX_ &ta);
1075	TRANSFER (ta);	1176	TRANSFER (ta);
1076	}	1177	}
1077		1178
1078	static int	1179	static int
1079	api_cede (void)	1180	api_cede (void)
1080	{	1181	{
		1182	dTHX;
1081	struct transfer_args ta;	1183	struct transfer_args ta;
1082		1184
1083	prepare_cede (&ta);	1185	prepare_cede (aTHX_ &ta);
1084		1186
1085	if (ta.prev != ta.next)	1187	if (ta.prev != ta.next)
1086	{	1188	{
1087	TRANSFER (ta);	1189	TRANSFER (ta);
1088	return 1;	1190	return 1;
…		…
1092	}	1194	}
1093		1195
1094	static int	1196	static int
1095	api_cede_notself (void)	1197	api_cede_notself (void)
1096	{	1198	{
		1199	dTHX;
1097	struct transfer_args ta;	1200	struct transfer_args ta;
1098		1201
1099	if (prepare_cede_notself (&ta))	1202	if (prepare_cede_notself (aTHX_ &ta))
1100	{	1203	{
1101	TRANSFER (ta);	1204	TRANSFER (ta);
1102	return 1;	1205	return 1;
1103	}	1206	}
1104	else	1207	else
…		…
1120		1223
1121	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1224	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1122	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1225	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1123	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));	1226	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1124	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));
1125	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1230	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1126		1231
1127	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;
1128		1237
1129	coroapi.ver = CORO_API_VERSION;	1238	coroapi.ver = CORO_API_VERSION;
1130	coroapi.transfer = api_transfer;	1239	coroapi.transfer = api_transfer;
1131		1240
1132	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1241	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1140	HV *hv;	1249	HV *hv;
1141	int i;	1250	int i;
1142		1251
1143	Newz (0, coro, 1, struct coro);	1252	Newz (0, coro, 1, struct coro);
1144	coro->args = newAV ();	1253	coro->args = newAV ();
1145	coro->save = CORO_SAVE_ALL;	1254	coro->save = CORO_SAVE_DEF;
1146	coro->flags = CF_NEW;	1255	coro->flags = CF_NEW;
1147		1256
		1257	if (coro_first) coro_first->prev = coro;
		1258	coro->next = coro_first;
		1259	coro_first = coro;
		1260
1148	hv = newHV ();	1261	coro->hv = hv = newHV ();
1149	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;
1150	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1263	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1151		1264
1152	for (i = 1; i < items; i++)	1265	for (i = 1; i < items; i++)
1153	av_push (coro->args, newSVsv (ST (i)));	1266	av_push (coro->args, newSVsv (ST (i)));
…		…
1157		1270
1158	int	1271	int
1159	save (SV *coro, int new_save = -1)	1272	save (SV *coro, int new_save = -1)
1160	CODE:	1273	CODE:
1161	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	}
1162	OUTPUT:	1286	OUTPUT:
1163	RETVAL	1287	RETVAL
1164		1288
1165	void	1289	void
1166	_set_stacklevel (...)	1290	_set_stacklevel (...)
…		…
1182		1306
1183	case 1:	1307	case 1:
1184	if (items != 2)	1308	if (items != 2)
1185	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);
1186		1310
1187	prepare_transfer (&ta, ST (0), ST (1));	1311	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1188	break;	1312	break;
1189		1313
1190	case 2:	1314	case 2:
1191	prepare_schedule (&ta);	1315	prepare_schedule (aTHX_ &ta);
1192	break;	1316	break;
1193		1317
1194	case 3:	1318	case 3:
1195	prepare_cede (&ta);	1319	prepare_cede (aTHX_ &ta);
1196	break;	1320	break;
1197		1321
1198	case 4:	1322	case 4:
1199	if (!prepare_cede_notself (&ta))	1323	if (!prepare_cede_notself (aTHX_ &ta))
1200	XSRETURN_EMPTY;	1324	XSRETURN_EMPTY;
1201		1325
1202	break;	1326	break;
1203	}	1327	}
1204		1328
1205	BARRIER;	1329	BARRIER;
1206	TRANSFER (ta);	1330	TRANSFER (ta);
		1331
		1332	if (GIMME_V != G_VOID && ta.next != ta.prev)
		1333	XSRETURN_YES;
1207	}	1334	}
1208		1335
1209	bool	1336	bool
1210	_destroy (SV *coro_sv)	1337	_destroy (SV *coro_sv)
1211	CODE:	1338	CODE:
1212	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1339	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1213	OUTPUT:	1340	OUTPUT:
1214	RETVAL	1341	RETVAL
1215		1342
1216	void	1343	void
1217	_exit (code)	1344	_exit (code)
…		…
1219	PROTOTYPE: $	1346	PROTOTYPE: $
1220	CODE:	1347	CODE:
1221	_exit (code);	1348	_exit (code);
1222		1349
1223	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
1224	cctx_count ()	1360	cctx_count ()
1225	CODE:	1361	CODE:
1226	RETVAL = cctx_count;	1362	RETVAL = cctx_count;
1227	OUTPUT:	1363	OUTPUT:
1228	RETVAL	1364	RETVAL
…		…
1232	CODE:	1368	CODE:
1233	RETVAL = cctx_idle;	1369	RETVAL = cctx_idle;
1234	OUTPUT:	1370	OUTPUT:
1235	RETVAL	1371	RETVAL
1236		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
1237	MODULE = Coro::State PACKAGE = Coro	1442	MODULE = Coro::State PACKAGE = Coro
1238		1443
1239	BOOT:	1444	BOOT:
1240	{	1445	{
1241	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);
1242		1454
1243	coro_stash = gv_stashpv ("Coro", TRUE);	1455	coro_stash = gv_stashpv ("Coro", TRUE);
1244		1456
1245	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1457	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1246	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1458	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1247	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1459	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1248	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1460	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1249	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1461	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1250	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1462	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1251
1252	coro_current = get_sv ("Coro::current", FALSE);
1253	SvREADONLY_on (coro_current);
1254		1463
1255	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1464	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1256	coro_ready[i] = newAV ();	1465	coro_ready[i] = newAV ();
1257		1466
1258	{	1467	{
…		…
1308	CODE:	1517	CODE:
1309	RETVAL = boolSV (api_ready (self));	1518	RETVAL = boolSV (api_ready (self));
1310	OUTPUT:	1519	OUTPUT:
1311	RETVAL	1520	RETVAL
1312		1521
1313	SV *
1314	is_ready (SV *self)
1315	PROTOTYPE: $
1316	CODE:
1317	RETVAL = boolSV (api_is_ready (self));
1318	OUTPUT:
1319	RETVAL
1320
1321	int	1522	int
1322	nready (...)	1523	nready (...)
1323	PROTOTYPE:	1524	PROTOTYPE:
1324	CODE:	1525	CODE:
1325	RETVAL = coro_nready;	1526	RETVAL = coro_nready;
1326	OUTPUT:	1527	OUTPUT:
1327	RETVAL	1528	RETVAL
1328		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	av_clear (defav);
		1551
		1552	RETVAL = sv_2mortal (SvREFCNT_inc (AvARRAY (invoke_av)[0]));
		1553
		1554	if (len > 0)
		1555	{
		1556	av_extend (defav, len);
		1557	for (i = 0; i < len; ++i)
		1558	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1559	}
		1560
		1561	SvREFCNT_dec (invoke);
		1562	}
		1563	OUTPUT:
		1564	RETVAL
		1565
		1566	void
		1567	_pool_2 (...)
		1568	CODE:
		1569	{
		1570	struct coro *coro = SvSTATE (coro_current);
		1571
		1572	if (coro_rss (coro) > SvIV (sv_pool_rss)
		1573	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1574	XSRETURN_YES;
		1575
		1576	av_clear (GvAV (PL_defgv));
		1577	hv_store (SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1578	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1579	coro->save = CORO_SAVE_DEF;
		1580	coro->prio = 0;
		1581	av_push (av_async_pool, newSVsv (coro_current));
		1582
		1583	XSRETURN_NO;
		1584	}
		1585
		1586
1329	MODULE = Coro::State PACKAGE = Coro::AIO	1587	MODULE = Coro::State PACKAGE = Coro::AIO
1330		1588
1331	SV *	1589	SV *
1332	_get_state ()	1590	_get_state ()
1333	CODE:	1591	CODE:

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing Coro/Coro/State.xs (file contents): Revision 1.133 by root, Thu Jan 4 20:14:19 2007 UTC vs. Revision 1.159 by root, Sat Sep 22 14:42:56 2007 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.133 by root, Thu Jan 4 20:14:19 2007 UTC vs.
Revision 1.159 by root, Sat Sep 22 14:42:56 2007 UTC