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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.104 by root, Mon Nov 27 01:51:02 2006 UTC vs.
Revision 1.116 by root, Fri Dec 1 14:01:43 2006 UTC

…		…
7	#include "patchlevel.h"	7	#include "patchlevel.h"
8		8
9	#if USE_VALGRIND	9	#if USE_VALGRIND
10	# include <valgrind/valgrind.h>	10	# include <valgrind/valgrind.h>
11	#endif	11	#endif
		12
		13	/* the maximum number of idle cctx that will be pooled */
		14	#define MAX_IDLE_CCTX 8
12		15
13	#define PERL_VERSION_ATLEAST(a,b,c) \	16	#define PERL_VERSION_ATLEAST(a,b,c) \
14	(PERL_REVISION > (a) \	17	(PERL_REVISION > (a) \
15	\|\| (PERL_REVISION == (a) \	18	\|\| (PERL_REVISION == (a) \
16	&& (PERL_VERSION > (b) \	19	&& (PERL_VERSION > (b) \
…		…
62	# ifndef PAGESIZE	65	# ifndef PAGESIZE
63	# define PAGESIZE pagesize	66	# define PAGESIZE pagesize
64	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)	67	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
65	static long pagesize;	68	static long pagesize;
66	# else	69	# else
67	# define BOOT_PAGESIZE	70	# define BOOT_PAGESIZE (void)0
68	# endif	71	# endif
		72	#else
		73	# define PAGESIZE 0
		74	# define BOOT_PAGESIZE (void)0
69	#endif	75	#endif
70		76
71	/* The next macro should declare a variable stacklevel that contains and approximation	77	/* The next macro should declare a variable stacklevel that contains and approximation
72	* to the current C stack pointer. Its property is that it changes with each call	78	* to the current C stack pointer. Its property is that it changes with each call
73	* and should be unique. */	79	* and should be unique. */
…		…
100	static struct CoroAPI coroapi;	106	static struct CoroAPI coroapi;
101	static AV main_mainstack; / used to differentiate between $main and others */	107	static AV main_mainstack; / used to differentiate between $main and others */
102	static HV coro_state_stash, coro_stash;	108	static HV coro_state_stash, coro_stash;
103	static SV coro_mortal; / will be freed after next transfer */	109	static SV coro_mortal; / will be freed after next transfer */
104		110
		111	static struct coro_cctx *cctx_first;
		112	static int cctx_count, cctx_idle;
		113
105	/* this is a structure representing a c-level coroutine */	114	/* this is a structure representing a c-level coroutine */
106	typedef struct coro_stack {	115	typedef struct coro_cctx {
107	struct coro_stack *next;	116	struct coro_cctx *next;
108		117
109	/* the stack */	118	/* the stack */
110	void *sptr;	119	void *sptr;
111	long ssize; /* positive == mmap, otherwise malloc */	120	long ssize; /* positive == mmap, otherwise malloc */
112		121
113	/* cpu state */	122	/* cpu state */
114	void idle_sp; / sp of top-level transfer/schedule/cede call */	123	void idle_sp; / sp of top-level transfer/schedule/cede call */
115	JMPENV *top_env;	124	JMPENV *top_env;
116	coro_context cctx;	125	coro_context cctx;
117		126
		127	int inuse;
		128
118	#if USE_VALGRIND	129	#if USE_VALGRIND
119	int valgrind_id;	130	int valgrind_id;
120	#endif	131	#endif
121	} coro_stack;	132	} coro_cctx;
		133
		134	enum {
		135	CF_RUNNING, /* coroutine is running */
		136	CF_READY, /* coroutine is ready */
		137	};
122		138
123	/* this is a structure representing a perl-level coroutine */	139	/* this is a structure representing a perl-level coroutine */
124	struct coro {	140	struct coro {
125	/* the c coroutine allocated to this perl coroutine, if any */	141	/* the c coroutine allocated to this perl coroutine, if any */
126	coro_stack *stack;	142	coro_cctx *cctx;
127		143
128	/* data associated with this coroutine (initial args) */	144	/* data associated with this coroutine (initial args) */
129	AV *args;	145	AV *args;
130	int refcnt;	146	int refcnt;
		147	int flags;
131		148
132	/* optionally saved, might be zero */	149	/* optionally saved, might be zero */
133	AV *defav;	150	AV *defav;
134	SV *defsv;	151	SV *defsv;
135	SV *errsv;	152	SV *errsv;
136		153
137	/* saved global state not related to stacks */	154	#define VAR(name,type) type name;
138	U8 dowarn;	155	# include "state.h"
139	I32 in_eval;	156	#undef VAR
140
141	/* the stacks and related info (callchain etc..) */
142	PERL_SI *curstackinfo;
143	AV *curstack;
144	AV *mainstack;
145	SV **stack_sp;
146	OP *op;
147	SV **curpad;
148	AV *comppad;
149	CV *compcv;
150	SV **stack_base;
151	SV **stack_max;
152	SV **tmps_stack;
153	I32 tmps_floor;
154	I32 tmps_ix;
155	I32 tmps_max;
156	I32 *markstack;
157	I32 *markstack_ptr;
158	I32 *markstack_max;
159	I32 *scopestack;
160	I32 scopestack_ix;
161	I32 scopestack_max;
162	ANY *savestack;
163	I32 savestack_ix;
164	I32 savestack_max;
165	OP **retstack;
166	I32 retstack_ix;
167	I32 retstack_max;
168	PMOP *curpm;
169	COP *curcop;
170		157
171	/* coro process data */	158	/* coro process data */
172	int prio;	159	int prio;
173	};	160	};
174		161
…		…
238		225
239	#define PERL_MAGIC_coro PERL_MAGIC_ext	226	#define PERL_MAGIC_coro PERL_MAGIC_ext
240		227
241	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	228	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
242		229
		230	#define CORO_MAGIC(cv) \
		231	SvMAGIC (cv) \
		232	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
		233	? SvMAGIC (cv) \
		234	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
		235	: 0
		236
243	/* the next two functions merely cache the padlists */	237	/* the next two functions merely cache the padlists */
244	static void	238	static void
245	get_padlist (CV *cv)	239	get_padlist (CV *cv)
246	{	240	{
247	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	241	MAGIC *mg = CORO_MAGIC (cv);
		242	AV *av;
248		243
249	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	244	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
250	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	245	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
251	else	246	else
252	{	247	{
253	#if 0	248	#if 0
254	/* this is probably cleaner, but also slower? */	249	/* this is probably cleaner, but also slower? */
255	CV *cp = Perl_cv_clone (cv);	250	CV *cp = Perl_cv_clone (cv);
…		…
263	}	258	}
264		259
265	static void	260	static void
266	put_padlist (CV *cv)	261	put_padlist (CV *cv)
267	{	262	{
268	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	263	MAGIC *mg = CORO_MAGIC (cv);
		264	AV *av;
269		265
270	if (!mg)	266	if (!mg)
271	{	267	{
272	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	268	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
273	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	269	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
274	mg->mg_virtual = &vtbl_coro;	270	mg->mg_virtual = &vtbl_coro;
275	mg->mg_obj = (SV *)newAV ();	271	mg->mg_obj = (SV *)newAV ();
276	}	272	}
277		273
278	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));	274	av = (AV *)mg->mg_obj;
		275
		276	if (AvFILLp (av) >= AvMAX (av))
		277	av_extend (av, AvMAX (av) + 1);
		278
		279	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
279	}	280	}
280		281
281	#define SB do {	282	#define SB do {
282	#define SE } while (0)	283	#define SE } while (0)
283		284
…		…
287	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	288	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
288		289
289	static void	290	static void
290	load_state(Coro__State c)	291	load_state(Coro__State c)
291	{	292	{
292	PL_dowarn = c->dowarn;	293	#define VAR(name,type) PL_ ## name = c->name;
293	PL_in_eval = c->in_eval;	294	# include "state.h"
294		295	#undef VAR
295	PL_curstackinfo = c->curstackinfo;
296	PL_curstack = c->curstack;
297	PL_mainstack = c->mainstack;
298	PL_stack_sp = c->stack_sp;
299	PL_op = c->op;
300	PL_curpad = c->curpad;
301	PL_comppad = c->comppad;
302	PL_compcv = c->compcv;
303	PL_stack_base = c->stack_base;
304	PL_stack_max = c->stack_max;
305	PL_tmps_stack = c->tmps_stack;
306	PL_tmps_floor = c->tmps_floor;
307	PL_tmps_ix = c->tmps_ix;
308	PL_tmps_max = c->tmps_max;
309	PL_markstack = c->markstack;
310	PL_markstack_ptr = c->markstack_ptr;
311	PL_markstack_max = c->markstack_max;
312	PL_scopestack = c->scopestack;
313	PL_scopestack_ix = c->scopestack_ix;
314	PL_scopestack_max = c->scopestack_max;
315	PL_savestack = c->savestack;
316	PL_savestack_ix = c->savestack_ix;
317	PL_savestack_max = c->savestack_max;
318	#if !PERL_VERSION_ATLEAST (5,9,0)
319	PL_retstack = c->retstack;
320	PL_retstack_ix = c->retstack_ix;
321	PL_retstack_max = c->retstack_max;
322	#endif
323	PL_curpm = c->curpm;
324	PL_curcop = c->curcop;
325		296
326	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	297	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
327	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	298	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
328	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	299	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
329		300
…		…
332	CV *cv;	303	CV *cv;
333		304
334	/* now do the ugly restore mess */	305	/* now do the ugly restore mess */
335	while ((cv = (CV *)POPs))	306	while ((cv = (CV *)POPs))
336	{	307	{
337	AV padlist = (AV )POPs;
338
339	if (padlist)
340	{
341	put_padlist (cv); /* mark this padlist as available */	308	put_padlist (cv); /* mark this padlist as available */
342	CvPADLIST(cv) = padlist;	309	CvDEPTH (cv) = PTR2IV (POPs);
343	}	310	CvPADLIST (cv) = (AV *)POPs;
344
345	++CvDEPTH(cv);
346	}	311	}
347		312
348	PUTBACK;	313	PUTBACK;
349	}	314	}
350	}	315	}
…		…
372	PERL_CONTEXT *cx = &ccstk[cxix--];	337	PERL_CONTEXT *cx = &ccstk[cxix--];
373		338
374	if (CxTYPE(cx) == CXt_SUB)	339	if (CxTYPE(cx) == CXt_SUB)
375	{	340	{
376	CV *cv = cx->blk_sub.cv;	341	CV *cv = cx->blk_sub.cv;
		342
377	if (CvDEPTH(cv))	343	if (CvDEPTH (cv))
378	{	344	{
379	EXTEND (SP, CvDEPTH(cv)*2);	345	EXTEND (SP, 3);
380
381	while (--CvDEPTH(cv))
382	{
383	/* this tells the restore code to increment CvDEPTH */
384	PUSHs (Nullsv);
385	PUSHs ((SV *)cv);
386	}
387		346
388	PUSHs ((SV *)CvPADLIST(cv));	347	PUSHs ((SV *)CvPADLIST(cv));
		348	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
389	PUSHs ((SV *)cv);	349	PUSHs ((SV *)cv);
390		350
		351	CvDEPTH (cv) = 0;
391	get_padlist (cv);	352	get_padlist (cv);
392	}	353	}
393	}	354	}
394	#ifdef CXt_FORMAT	355	#ifdef CXt_FORMAT
395	else if (CxTYPE(cx) == CXt_FORMAT)	356	else if (CxTYPE(cx) == CXt_FORMAT)
…		…
414		375
415	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	376	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
416	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	377	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
417	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	378	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
418		379
419	c->dowarn = PL_dowarn;	380	#define VAR(name,type)c->name = PL_ ## name;
420	c->in_eval = PL_in_eval;	381	# include "state.h"
421		382	#undef VAR
422	c->curstackinfo = PL_curstackinfo;
423	c->curstack = PL_curstack;
424	c->mainstack = PL_mainstack;
425	c->stack_sp = PL_stack_sp;
426	c->op = PL_op;
427	c->curpad = PL_curpad;
428	c->comppad = PL_comppad;
429	c->compcv = PL_compcv;
430	c->stack_base = PL_stack_base;
431	c->stack_max = PL_stack_max;
432	c->tmps_stack = PL_tmps_stack;
433	c->tmps_floor = PL_tmps_floor;
434	c->tmps_ix = PL_tmps_ix;
435	c->tmps_max = PL_tmps_max;
436	c->markstack = PL_markstack;
437	c->markstack_ptr = PL_markstack_ptr;
438	c->markstack_max = PL_markstack_max;
439	c->scopestack = PL_scopestack;
440	c->scopestack_ix = PL_scopestack_ix;
441	c->scopestack_max = PL_scopestack_max;
442	c->savestack = PL_savestack;
443	c->savestack_ix = PL_savestack_ix;
444	c->savestack_max = PL_savestack_max;
445	#if !PERL_VERSION_ATLEAST (5,9,0)
446	c->retstack = PL_retstack;
447	c->retstack_ix = PL_retstack_ix;
448	c->retstack_max = PL_retstack_max;
449	#endif
450	c->curpm = PL_curpm;
451	c->curcop = PL_curcop;
452	}	383	}
453		384
454	/*	385	/*
455	* allocate various perl stacks. This is an exact copy	386	* allocate various perl stacks. This is an exact copy
456	* of perl.c:init_stacks, except that it uses less memory	387	* of perl.c:init_stacks, except that it uses less memory
…		…
458	* not usually need a lot of stackspace.	389	* not usually need a lot of stackspace.
459	*/	390	*/
460	static void	391	static void
461	coro_init_stacks ()	392	coro_init_stacks ()
462	{	393	{
463	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	394	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
464	PL_curstackinfo->si_type = PERLSI_MAIN;	395	PL_curstackinfo->si_type = PERLSI_MAIN;
465	PL_curstack = PL_curstackinfo->si_stack;	396	PL_curstack = PL_curstackinfo->si_stack;
466	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	397	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
467		398
468	PL_stack_base = AvARRAY(PL_curstack);	399	PL_stack_base = AvARRAY(PL_curstack);
469	PL_stack_sp = PL_stack_base;	400	PL_stack_sp = PL_stack_base;
470	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	401	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
471		402
472	New(50,PL_tmps_stack,96,SV*);	403	New(50,PL_tmps_stack,128,SV*);
473	PL_tmps_floor = -1;	404	PL_tmps_floor = -1;
474	PL_tmps_ix = -1;	405	PL_tmps_ix = -1;
475	PL_tmps_max = 96;	406	PL_tmps_max = 128;
476		407
477	New(54,PL_markstack,16,I32);	408	New(54,PL_markstack,32,I32);
478	PL_markstack_ptr = PL_markstack;	409	PL_markstack_ptr = PL_markstack;
479	PL_markstack_max = PL_markstack + 16;	410	PL_markstack_max = PL_markstack + 32;
480		411
481	#ifdef SET_MARK_OFFSET	412	#ifdef SET_MARK_OFFSET
482	SET_MARK_OFFSET;	413	SET_MARK_OFFSET;
483	#endif	414	#endif
484		415
485	New(54,PL_scopestack,16,I32);	416	New(54,PL_scopestack,32,I32);
486	PL_scopestack_ix = 0;	417	PL_scopestack_ix = 0;
487	PL_scopestack_max = 16;	418	PL_scopestack_max = 32;
488		419
489	New(54,PL_savestack,96,ANY);	420	New(54,PL_savestack,64,ANY);
490	PL_savestack_ix = 0;	421	PL_savestack_ix = 0;
491	PL_savestack_max = 96;	422	PL_savestack_max = 64;
492		423
493	#if !PERL_VERSION_ATLEAST (5,9,0)	424	#if !PERL_VERSION_ATLEAST (5,9,0)
494	New(54,PL_retstack,8,OP*);	425	New(54,PL_retstack,16,OP*);
495	PL_retstack_ix = 0;	426	PL_retstack_ix = 0;
496	PL_retstack_max = 8;	427	PL_retstack_max = 16;
497	#endif	428	#endif
498	}	429	}
499		430
500	/*	431	/*
501	* destroy the stacks, the callchain etc...	432	* destroy the stacks, the callchain etc...
502	*/	433	*/
503	static void	434	static void
504	coro_destroy_stacks()	435	coro_destroy_stacks ()
505	{	436	{
506	if (!IN_DESTRUCT)	437	if (!IN_DESTRUCT)
507	{	438	{
508	/* is this ugly, I ask? */	439	/* is this ugly, I ask? */
509	LEAVE_SCOPE (0);	440	LEAVE_SCOPE (0);
…		…
575	myop.op_flags = OPf_WANT_VOID;	506	myop.op_flags = OPf_WANT_VOID;
576		507
577	PL_op = (OP *)&myop;	508	PL_op = (OP *)&myop;
578		509
579	PUSHMARK (SP);	510	PUSHMARK (SP);
580	XPUSHs ((SV *)get_cv ("Coro::State::coro_init", FALSE));	511	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
581	PUTBACK;	512	PUTBACK;
582	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	513	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
583	SPAGAIN;	514	SPAGAIN;
584		515
585	ENTER; /* necessary e.g. for dounwind */	516	ENTER; /* necessary e.g. for dounwind */
…		…
595	coro_mortal = 0;	526	coro_mortal = 0;
596	}	527	}
597	}	528	}
598		529
599	static void NOINLINE	530	static void NOINLINE
600	prepare_cctx (coro_stack *cctx)	531	prepare_cctx (coro_cctx *cctx)
601	{	532	{
602	dSP;	533	dSP;
603	LOGOP myop;	534	LOGOP myop;
604		535
605	Zero (&myop, 1, LOGOP);	536	Zero (&myop, 1, LOGOP);
606	myop.op_next = PL_op;	537	myop.op_next = PL_op;
607	myop.op_flags = OPf_WANT_VOID;	538	myop.op_flags = OPf_WANT_VOID;
608		539
609	sv_setiv (get_sv ("Coro::State::cctx_stack", FALSE), PTR2IV (cctx));	540	sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx));
610		541
611	PUSHMARK (SP);	542	PUSHMARK (SP);
612	XPUSHs ((SV *)get_cv ("Coro::State::cctx_init", FALSE));	543	XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
613	PUTBACK;	544	PUTBACK;
614	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);	545	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);
615	SPAGAIN;	546	SPAGAIN;
616	}	547	}
617		548
…		…
623		554
624	/*	555	/*
625	* this is a _very_ stripped down perl interpreter ;)	556	* this is a _very_ stripped down perl interpreter ;)
626	*/	557	*/
627	PL_top_env = &PL_start_env;	558	PL_top_env = &PL_start_env;
		559
628	/* inject call to cctx_init */	560	/* inject call to cctx_init */
629	prepare_cctx ((coro_stack *)arg);	561	prepare_cctx ((coro_cctx *)arg);
630		562
631	/* somebody will hit me for both perl_run and PL_restartop */	563	/* somebody will hit me for both perl_run and PL_restartop */
632	perl_run (PL_curinterp);	564	perl_run (PL_curinterp);
633		565
634	fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr);	566	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
635	abort ();	567	abort ();
636	}	568	}
637		569
638	static coro_stack *	570	static coro_cctx *
639	stack_new ()	571	cctx_new ()
640	{	572	{
641	coro_stack *stack;	573	coro_cctx *cctx;
642		574
		575	++cctx_count;
		576
643	New (0, stack, 1, coro_stack);	577	New (0, cctx, 1, coro_cctx);
644		578
645	#if HAVE_MMAP	579	#if HAVE_MMAP
646		580
647	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	581	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
648	/* mmap suppsedly does allocate-on-write for us */	582	/* mmap suppsedly does allocate-on-write for us */
649	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	583	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
650		584
651	if (stack->sptr == (void *)-1)	585	if (cctx->sptr == (void *)-1)
652	{	586	{
653	perror ("FATAL: unable to mmap stack for coroutine");	587	perror ("FATAL: unable to mmap stack for coroutine");
654	_exit (EXIT_FAILURE);	588	_exit (EXIT_FAILURE);
655	}	589	}
656		590
657	# if STACKGUARD	591	# if STACKGUARD
658	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	592	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
659	# endif	593	# endif
660		594
661	#else	595	#else
662		596
663	stack->ssize = STACKSIZE * (long)sizeof (long);	597	cctx->ssize = STACKSIZE * (long)sizeof (long);
664	New (0, stack->sptr, STACKSIZE, long);	598	New (0, cctx->sptr, STACKSIZE, long);
665		599
666	if (!stack->sptr)	600	if (!cctx->sptr)
667	{	601	{
668	perror (stderr, "FATAL: unable to malloc stack for coroutine");	602	perror ("FATAL: unable to malloc stack for coroutine");
669	_exit (EXIT_FAILURE);	603	_exit (EXIT_FAILURE);
670	}	604	}
671		605
672	#endif	606	#endif
673		607
674	#if USE_VALGRIND	608	#if USE_VALGRIND
675	stack->valgrind_id = VALGRIND_STACK_REGISTER (	609	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
676	STACKGUARD * PAGESIZE + (char *)stack->sptr,	610	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
677	stack->ssize + (char *)stack->sptr	611	cctx->ssize + (char *)cctx->sptr
678	);	612	);
679	#endif	613	#endif
680		614
681	coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize);	615	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
682		616
683	return stack;	617	return cctx;
684	}	618	}
685		619
686	static void	620	static void
687	stack_free (coro_stack *stack)	621	cctx_destroy (coro_cctx *cctx)
688	{	622	{
689	if (!stack)	623	if (!cctx)
690	return;	624	return;
691		625
		626	--cctx_count;
		627
692	#if USE_VALGRIND	628	#if USE_VALGRIND
693	VALGRIND_STACK_DEREGISTER (stack->valgrind_id);	629	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
694	#endif	630	#endif
695		631
696	#if HAVE_MMAP	632	#if HAVE_MMAP
697	munmap (stack->sptr, stack->ssize);	633	munmap (cctx->sptr, cctx->ssize);
698	#else	634	#else
699	Safefree (stack->sptr);	635	Safefree (cctx->sptr);
700	#endif	636	#endif
701		637
702	Safefree (stack);	638	Safefree (cctx);
703	}	639	}
704		640
705	static coro_stack *stack_first;
706	static int cctx_count, cctx_idle;
707
708	static coro_stack *	641	static coro_cctx *
709	stack_get ()	642	cctx_get ()
710	{	643	{
711	coro_stack *stack;	644	coro_cctx *cctx;
712		645
713	if (stack_first)	646	if (cctx_first)
714	{	647	{
		648	cctx = cctx_first;
		649	cctx_first = cctx->next;
715	--cctx_idle;	650	--cctx_idle;
716	stack = stack_first;
717	stack_first = stack->next;
718	}	651	}
719	else	652	else
720	{	653	{
721	++cctx_count;	654	cctx = cctx_new ();
722	stack = stack_new ();
723	PL_op = PL_op->op_next;	655	PL_op = PL_op->op_next;
724	}	656	}
725		657
726	return stack;	658	return cctx;
727	}	659	}
728		660
729	static void	661	static void
730	stack_put (coro_stack *stack)	662	cctx_put (coro_cctx *cctx)
731	{	663	{
		664	/* free another cctx if overlimit */
		665	if (cctx_idle >= MAX_IDLE_CCTX)
		666	{
		667	coro_cctx *first = cctx_first;
		668	cctx_first = first->next;
		669	--cctx_idle;
		670
		671	assert (!first->inuse);
		672	cctx_destroy (first);
		673	}
		674
732	++cctx_idle;	675	++cctx_idle;
733	stack->next = stack_first;	676	cctx->next = cctx_first;
734	stack_first = stack;	677	cctx_first = cctx;
735	}	678	}
736		679
737	/* never call directly, always through the coro_state_transfer global variable */	680	/* never call directly, always through the coro_state_transfer global variable */
738	static void NOINLINE	681	static void NOINLINE
739	transfer (struct coro prev, struct coro next, int flags)	682	transfer (struct coro prev, struct coro next, int flags)
740	{	683	{
741	dSTACKLEVEL;	684	dSTACKLEVEL;
742		685
743	/* sometimes transfer is only called to set idle_sp */	686	/* sometimes transfer is only called to set idle_sp */
744	if (flags == TRANSFER_SET_STACKLEVEL)	687	if (flags == TRANSFER_SET_STACKLEVEL)
745	((coro_stack *)prev)->idle_sp = STACKLEVEL;	688	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
746	else if (prev != next)	689	else if (prev != next)
747	{	690	{
748	coro_stack *prev__stack;	691	coro_cctx *prev__cctx;
		692
		693	if (!prev->cctx)
		694	{
		695	/* create a new empty context */
		696	Newz (0, prev->cctx, 1, coro_cctx);
		697	prev->cctx->inuse = 1;
		698	prev->flags \|= CF_RUNNING;
		699	}
		700
		701	if (!prev->flags & CF_RUNNING)
		702	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
		703
		704	if (next->flags & CF_RUNNING)
		705	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		706
		707	prev->flags &= ~CF_RUNNING;
		708	next->flags \|= CF_RUNNING;
749		709
750	LOCK;	710	LOCK;
751		711
752	if (next->mainstack)	712	if (next->mainstack)
753	{	713	{
…		…
760	/* need to start coroutine */	720	/* need to start coroutine */
761	/* first get rid of the old state */	721	/* first get rid of the old state */
762	SAVE (prev, -1);	722	SAVE (prev, -1);
763	/* setup coroutine call */	723	/* setup coroutine call */
764	setup_coro (next);	724	setup_coro (next);
765	/* need a stack */	725	/* need a new stack */
766	next->stack = 0;	726	assert (!next->stack);
767	}	727	}
768		728
769	if (!prev->stack)
770	/* create a new empty context */
771	Newz (0, prev->stack, 1, coro_stack);
772
773	prev__stack = prev->stack;	729	prev__cctx = prev->cctx;
774		730
775	/* possibly "free" the stack */	731	/* possibly "free" the cctx */
776	if (prev__stack->idle_sp == STACKLEVEL)	732	if (prev__cctx->idle_sp == STACKLEVEL)
777	{	733	{
		734	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
		735	assert (PL_top_env == prev__cctx->top_env);
		736
778	stack_put (prev__stack);	737	cctx_put (prev__cctx);
779	prev->stack = 0;	738	prev->cctx = 0;
780	}	739	}
781		740
782	if (!next->stack)	741	if (!next->cctx)
783	next->stack = stack_get ();	742	next->cctx = cctx_get ();
784		743
785	if (prev__stack != next->stack)	744	if (prev__cctx != next->cctx)
786	{	745	{
		746	assert ( prev__cctx->inuse);
		747	assert (!next->cctx->inuse);
		748
		749	prev__cctx->inuse = 0;
		750	next->cctx->inuse = 1;
		751
787	prev__stack->top_env = PL_top_env;	752	prev__cctx->top_env = PL_top_env;
788	PL_top_env = next->stack->top_env;	753	PL_top_env = next->cctx->top_env;
789	coro_transfer (&prev__stack->cctx, &next->stack->cctx);	754	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
790	}	755	}
791		756
792	free_coro_mortal ();	757	free_coro_mortal ();
793		758
794	UNLOCK;	759	UNLOCK;
…		…
807	coro_state_destroy (struct coro *coro)	772	coro_state_destroy (struct coro *coro)
808	{	773	{
809	if (coro->refcnt--)	774	if (coro->refcnt--)
810	return;	775	return;
811		776
		777	if (coro->flags & CF_RUNNING)
		778	croak ("FATAL: tried to destroy currently running coroutine");
		779
812	if (coro->mainstack && coro->mainstack != main_mainstack)	780	if (coro->mainstack && coro->mainstack != main_mainstack)
813	{	781	{
814	struct coro temp;	782	struct coro temp;
815		783
816	SAVE ((&temp), TRANSFER_SAVE_ALL);	784	SAVE ((&temp), TRANSFER_SAVE_ALL);
…		…
821	LOAD ((&temp)); /* this will get rid of defsv etc.. */	789	LOAD ((&temp)); /* this will get rid of defsv etc.. */
822		790
823	coro->mainstack = 0;	791	coro->mainstack = 0;
824	}	792	}
825		793
826	stack_free (coro->stack);	794	cctx_destroy (coro->cctx);
827	SvREFCNT_dec (coro->args);	795	SvREFCNT_dec (coro->args);
828	Safefree (coro);	796	Safefree (coro);
829	}	797	}
830		798
831	static int	799	static int
…		…
913	static GV coro_current, coro_idle;	881	static GV coro_current, coro_idle;
914	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	882	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
915	static int coro_nready;	883	static int coro_nready;
916		884
917	static void	885	static void
918	coro_enq (SV *sv)	886	coro_enq (SV *coro_sv)
919	{	887	{
920	int prio;
921
922	if (SvTYPE (sv) != SVt_PVHV)
923	croak ("Coro::ready tried to enqueue something that is not a coroutine");
924
925	prio = SvSTATE (sv)->prio;
926
927	av_push (coro_ready [prio - PRIO_MIN], sv);	888	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
928	coro_nready++;	889	coro_nready++;
929	}	890	}
930		891
931	static SV *	892	static SV *
932	coro_deq (int min_prio)	893	coro_deq (int min_prio)
…		…
945	}	906	}
946		907
947	return 0;	908	return 0;
948	}	909	}
949		910
950	static void	911	static int
951	api_ready (SV *coro)	912	api_ready (SV *coro_sv)
952	{	913	{
953	dTHX;	914	struct coro *coro;
954		915
955	if (SvROK (coro))	916	if (SvROK (coro_sv))
956	coro = SvRV (coro);	917	coro_sv = SvRV (coro_sv);
		918
		919	coro = SvSTATE (coro_sv);
		920
		921	if (coro->flags & CF_READY)
		922	return 0;
		923
		924	if (coro->flags & CF_RUNNING)
		925	croak ("Coro::ready called on currently running coroutine");
		926
		927	coro->flags \|= CF_READY;
957		928
958	LOCK;	929	LOCK;
959	coro_enq (SvREFCNT_inc (coro));	930	coro_enq (SvREFCNT_inc (coro_sv));
960	UNLOCK;	931	UNLOCK;
		932
		933	return 1;
		934	}
		935
		936	static int
		937	api_is_ready (SV *coro_sv)
		938	{
		939	return !!SvSTATE (coro_sv)->flags & CF_READY;
961	}	940	}
962		941
963	static void	942	static void
964	prepare_schedule (struct transfer_args *ta)	943	prepare_schedule (struct transfer_args *ta)
965	{	944	{
…		…
1001	coro_mortal = prev;	980	coro_mortal = prev;
1002		981
1003	ta->prev = SvSTATE (prev);	982	ta->prev = SvSTATE (prev);
1004	ta->next = SvSTATE (next);	983	ta->next = SvSTATE (next);
1005	ta->flags = TRANSFER_SAVE_ALL;	984	ta->flags = TRANSFER_SAVE_ALL;
		985
		986	ta->next->flags &= ~CF_READY;
1006	}	987	}
1007		988
1008	static void	989	static void
1009	prepare_cede (struct transfer_args *ta)	990	prepare_cede (struct transfer_args *ta)
1010	{	991	{
1011	LOCK;	992	api_ready (GvSV (coro_current));
1012	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
1013	UNLOCK;
1014		993
1015	prepare_schedule (ta);	994	prepare_schedule (ta);
1016	}	995	}
1017		996
1018	static void	997	static void
…		…
1075	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1054	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1076	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1055	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1077		1056
1078	for (i = 1; i < items; i++)	1057	for (i = 1; i < items; i++)
1079	av_push (coro->args, newSVsv (ST (i)));	1058	av_push (coro->args, newSVsv (ST (i)));
1080
1081	/coro->mainstack = 0; //actual work is done inside transfer /
1082	/coro->stack = 0;/
1083	}	1059	}
1084	OUTPUT:	1060	OUTPUT:
1085	RETVAL	1061	RETVAL
1086		1062
1087	void	1063	void
…		…
1096	struct transfer_args ta;	1072	struct transfer_args ta;
1097		1073
1098	switch (ix)	1074	switch (ix)
1099	{	1075	{
1100	case 0:	1076	case 0:
1101	ta.prev = (struct coro )INT2PTR (coro_stack , SvIV (ST (0)));	1077	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1102	ta.next = 0;	1078	ta.next = 0;
1103	ta.flags = TRANSFER_SET_STACKLEVEL;	1079	ta.flags = TRANSFER_SET_STACKLEVEL;
1104	break;	1080	break;
1105		1081
1106	case 1:	1082	case 1:
…		…
1166	int code	1142	int code
1167	PROTOTYPE: $	1143	PROTOTYPE: $
1168	CODE:	1144	CODE:
1169	_exit (code);	1145	_exit (code);
1170		1146
		1147	int
		1148	cctx_count ()
		1149	CODE:
		1150	RETVAL = cctx_count;
		1151	OUTPUT:
		1152	RETVAL
		1153
		1154	int
		1155	cctx_idle ()
		1156	CODE:
		1157	RETVAL = cctx_idle;
		1158	OUTPUT:
		1159	RETVAL
		1160
1171	MODULE = Coro::State PACKAGE = Coro	1161	MODULE = Coro::State PACKAGE = Coro
1172		1162
1173	BOOT:	1163	BOOT:
1174	{	1164	{
1175	int i;	1165	int i;
…		…
1193	SV *sv = perl_get_sv("Coro::API", 1);	1183	SV *sv = perl_get_sv("Coro::API", 1);
1194		1184
1195	coroapi.schedule = api_schedule;	1185	coroapi.schedule = api_schedule;
1196	coroapi.cede = api_cede;	1186	coroapi.cede = api_cede;
1197	coroapi.ready = api_ready;	1187	coroapi.ready = api_ready;
		1188	coroapi.is_ready = api_is_ready;
1198	coroapi.nready = &coro_nready;	1189	coroapi.nready = &coro_nready;
1199	coroapi.current = coro_current;	1190	coroapi.current = coro_current;
1200		1191
1201	GCoroAPI = &coroapi;	1192	GCoroAPI = &coroapi;
1202	sv_setiv (sv, (IV)&coroapi);	1193	sv_setiv (sv, (IV)&coroapi);
…		…
1222		1213
1223	coro->prio = newprio;	1214	coro->prio = newprio;
1224	}	1215	}
1225	}	1216	}
1226		1217
1227	void	1218	SV *
1228	ready (SV *self)	1219	ready (SV *self)
1229	PROTOTYPE: $	1220	PROTOTYPE: $
1230	CODE:	1221	CODE:
1231	api_ready (self);	1222	RETVAL = boolSV (api_ready (self));
		1223	OUTPUT:
		1224	RETVAL
		1225
		1226	SV *
		1227	is_ready (SV *self)
		1228	PROTOTYPE: $
		1229	CODE:
		1230	RETVAL = boolSV (api_is_ready (self));
		1231	OUTPUT:
		1232	RETVAL
1232		1233
1233	int	1234	int
1234	nready (...)	1235	nready (...)
1235	PROTOTYPE:	1236	PROTOTYPE:
1236	CODE:	1237	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.104 by root, Mon Nov 27 01:51:02 2006 UTC vs. Revision 1.116 by root, Fri Dec 1 14:01:43 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.104 by root, Mon Nov 27 01:51:02 2006 UTC vs.
Revision 1.116 by root, Fri Dec 1 14:01:43 2006 UTC