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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.98 by root, Sun Nov 26 21:25:53 2006 UTC vs.
Revision 1.107 by root, Mon Nov 27 02:15:51 2006 UTC

…		…
4	#include "perl.h"	4	#include "perl.h"
5	#include "XSUB.h"	5	#include "XSUB.h"
6		6
7	#include "patchlevel.h"	7	#include "patchlevel.h"
8		8
9	#if PERL_VERSION < 6	9	#if USE_VALGRIND
		10	# include <valgrind/valgrind.h>
		11	#endif
		12
		13	#define PERL_VERSION_ATLEAST(a,b,c) \
		14	(PERL_REVISION > (a) \
		15	\|\| (PERL_REVISION == (a) \
		16	&& (PERL_VERSION > (b) \
		17	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
		18
		19	#if !PERL_VERSION_ATLEAST (5,6,0)
10	# ifndef PL_ppaddr	20	# ifndef PL_ppaddr
11	# define PL_ppaddr ppaddr	21	# define PL_ppaddr ppaddr
12	# endif	22	# endif
13	# ifndef call_sv	23	# ifndef call_sv
14	# define call_sv perl_call_sv	24	# define call_sv perl_call_sv
…		…
52	# ifndef PAGESIZE	62	# ifndef PAGESIZE
53	# define PAGESIZE pagesize	63	# define PAGESIZE pagesize
54	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)	64	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
55	static long pagesize;	65	static long pagesize;
56	# else	66	# else
57	# define BOOT_PAGESIZE	67	# define BOOT_PAGESIZE (void)0
58	# endif	68	# endif
		69	#else
		70	# define PAGESIZE 0
		71	# define BOOT_PAGESIZE (void)0
59	#endif	72	#endif
60		73
61	/* The next macro should declare a variable stacklevel that contains and approximation	74	/* The next macro should declare a variable stacklevel that contains and approximation
62	* to the current C stack pointer. Its property is that it changes with each call	75	* to the current C stack pointer. Its property is that it changes with each call
63	* and should be unique. */	76	* and should be unique. */
64	#define dSTACKLEVEL int stacklevel	77	#define dSTACKLEVEL int stacklevel
65	#define STACKLEVEL ((void *)&stacklevel)	78	#define STACKLEVEL ((void *)&stacklevel)
66		79
67	#define IN_DESTRUCT (PL_main_cv == Nullcv)	80	#define IN_DESTRUCT (PL_main_cv == Nullcv)
		81
		82	#if __GNUC__ >= 3
		83	# define attribute(x) __attribute__(x)
		84	#else
		85	# define attribute(x)
		86	#endif
		87
		88	#define NOINLINE attribute ((noinline))
68		89
69	#include "CoroAPI.h"	90	#include "CoroAPI.h"
70		91
71	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */	92	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
72		93
…		…
82	static struct CoroAPI coroapi;	103	static struct CoroAPI coroapi;
83	static AV main_mainstack; / used to differentiate between $main and others */	104	static AV main_mainstack; / used to differentiate between $main and others */
84	static HV coro_state_stash, coro_stash;	105	static HV coro_state_stash, coro_stash;
85	static SV coro_mortal; / will be freed after next transfer */	106	static SV coro_mortal; / will be freed after next transfer */
86		107
		108	static struct coro_cctx *cctx_first;
		109	static int cctx_count, cctx_idle;
		110
87	/* this is a structure representing a c-level coroutine */	111	/* this is a structure representing a c-level coroutine */
88	typedef struct coro_stack {	112	typedef struct coro_cctx {
89	struct coro_stack *next;	113	struct coro_cctx *next;
90		114
91	/* the stack */	115	/* the stack */
92	void *sptr;	116	void *sptr;
93	long ssize; /* positive == mmap, otherwise malloc */	117	long ssize; /* positive == mmap, otherwise malloc */
94		118
95	/* cpu state */	119	/* cpu state */
96	void idle_sp; / sp of top-level transfer/schedule/cede call */	120	void idle_sp; / sp of top-level transfer/schedule/cede call */
97	JMPENV *top_env;	121	JMPENV *top_env;
98	coro_context cctx;	122	coro_context cctx;
99	} coro_stack;	123
		124	#if USE_VALGRIND
		125	int valgrind_id;
		126	#endif
		127	} coro_cctx;
100		128
101	/* this is a structure representing a perl-level coroutine */	129	/* this is a structure representing a perl-level coroutine */
102	struct coro {	130	struct coro {
103	/* the c coroutine allocated to this perl coroutine, if any */	131	/* the c coroutine allocated to this perl coroutine, if any */
104	coro_stack *stack;	132	coro_cctx *cctx;
105		133
106	/* data associated with this coroutine (initial args) */	134	/* data associated with this coroutine (initial args) */
107	AV *args;	135	AV *args;
108	int refcnt;	136	int refcnt;
109		137
…		…
159	AV *padlist = CvPADLIST (cv);	187	AV *padlist = CvPADLIST (cv);
160	AV newpadlist, newpad;	188	AV newpadlist, newpad;
161		189
162	newpadlist = newAV ();	190	newpadlist = newAV ();
163	AvREAL_off (newpadlist);	191	AvREAL_off (newpadlist);
164	#if PERL_VERSION < 9	192	#if PERL_VERSION_ATLEAST (5,9,0)
		193	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
		194	#else
165	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	195	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
166	#else
167	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
168	#endif	196	#endif
169	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	197	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
170	--AvFILLp (padlist);	198	--AvFILLp (padlist);
171		199
172	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	200	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
…		…
291	PL_scopestack_ix = c->scopestack_ix;	319	PL_scopestack_ix = c->scopestack_ix;
292	PL_scopestack_max = c->scopestack_max;	320	PL_scopestack_max = c->scopestack_max;
293	PL_savestack = c->savestack;	321	PL_savestack = c->savestack;
294	PL_savestack_ix = c->savestack_ix;	322	PL_savestack_ix = c->savestack_ix;
295	PL_savestack_max = c->savestack_max;	323	PL_savestack_max = c->savestack_max;
296	#if PERL_VERSION < 9	324	#if !PERL_VERSION_ATLEAST (5,9,0)
297	PL_retstack = c->retstack;	325	PL_retstack = c->retstack;
298	PL_retstack_ix = c->retstack_ix;	326	PL_retstack_ix = c->retstack_ix;
299	PL_retstack_max = c->retstack_max;	327	PL_retstack_max = c->retstack_max;
300	#endif	328	#endif
301	PL_curpm = c->curpm;	329	PL_curpm = c->curpm;
…		…
418	c->scopestack_ix = PL_scopestack_ix;	446	c->scopestack_ix = PL_scopestack_ix;
419	c->scopestack_max = PL_scopestack_max;	447	c->scopestack_max = PL_scopestack_max;
420	c->savestack = PL_savestack;	448	c->savestack = PL_savestack;
421	c->savestack_ix = PL_savestack_ix;	449	c->savestack_ix = PL_savestack_ix;
422	c->savestack_max = PL_savestack_max;	450	c->savestack_max = PL_savestack_max;
423	#if PERL_VERSION < 9	451	#if !PERL_VERSION_ATLEAST (5,9,0)
424	c->retstack = PL_retstack;	452	c->retstack = PL_retstack;
425	c->retstack_ix = PL_retstack_ix;	453	c->retstack_ix = PL_retstack_ix;
426	c->retstack_max = PL_retstack_max;	454	c->retstack_max = PL_retstack_max;
427	#endif	455	#endif
428	c->curpm = PL_curpm;	456	c->curpm = PL_curpm;
…		…
436	* not usually need a lot of stackspace.	464	* not usually need a lot of stackspace.
437	*/	465	*/
438	static void	466	static void
439	coro_init_stacks ()	467	coro_init_stacks ()
440	{	468	{
441	LOCK;
442
443	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	469	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
444	PL_curstackinfo->si_type = PERLSI_MAIN;	470	PL_curstackinfo->si_type = PERLSI_MAIN;
445	PL_curstack = PL_curstackinfo->si_stack;	471	PL_curstack = PL_curstackinfo->si_stack;
446	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	472	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
447		473
…		…
468		494
469	New(54,PL_savestack,96,ANY);	495	New(54,PL_savestack,96,ANY);
470	PL_savestack_ix = 0;	496	PL_savestack_ix = 0;
471	PL_savestack_max = 96;	497	PL_savestack_max = 96;
472		498
473	#if PERL_VERSION < 9	499	#if !PERL_VERSION_ATLEAST (5,9,0)
474	New(54,PL_retstack,8,OP*);	500	New(54,PL_retstack,8,OP*);
475	PL_retstack_ix = 0;	501	PL_retstack_ix = 0;
476	PL_retstack_max = 8;	502	PL_retstack_max = 8;
477	#endif	503	#endif
478
479	UNLOCK;
480	}	504	}
481		505
482	/*	506	/*
483	* destroy the stacks, the callchain etc...	507	* destroy the stacks, the callchain etc...
484	*/	508	*/
485	static void	509	static void
486	destroy_stacks()	510	coro_destroy_stacks ()
487	{	511	{
488	if (!IN_DESTRUCT)	512	if (!IN_DESTRUCT)
489	{	513	{
490	/* is this ugly, I ask? */	514	/* is this ugly, I ask? */
491	LEAVE_SCOPE (0);	515	LEAVE_SCOPE (0);
…		…
522		546
523	Safefree (PL_tmps_stack);	547	Safefree (PL_tmps_stack);
524	Safefree (PL_markstack);	548	Safefree (PL_markstack);
525	Safefree (PL_scopestack);	549	Safefree (PL_scopestack);
526	Safefree (PL_savestack);	550	Safefree (PL_savestack);
527	#if PERL_VERSION < 9	551	#if !PERL_VERSION_ATLEAST (5,9,0)
528	Safefree (PL_retstack);	552	Safefree (PL_retstack);
529	#endif	553	#endif
530	}	554	}
531		555
532	static void	556	static void
533	setup_coro (struct coro *coro)	557	setup_coro (struct coro *coro)
534	{	558	{
535	/*	559	/*
536	* emulate part of the perl startup here.	560	* emulate part of the perl startup here.
537	*/	561	*/
538	dTHX;
539	dSP;
540	UNOP myop;
541	SV sub_init = (SV )get_cv ("Coro::State::coro_init", FALSE);
542		562
543	coro_init_stacks ();	563	coro_init_stacks ();
		564
544	/PL_curcop = 0;/	565	PL_curcop = 0;
545	/PL_in_eval = PL_in_eval;/ /* inherit */	566	PL_in_eval = 0;
		567	PL_curpm = 0;
		568
		569	{
		570	dSP;
		571	LOGOP myop;
		572
		573	/* I have no idea why this is needed, but it is */
		574	PUSHMARK (SP);
		575
546	SvREFCNT_dec (GvAV (PL_defgv));	576	SvREFCNT_dec (GvAV (PL_defgv));
547	GvAV (PL_defgv) = coro->args; coro->args = 0;	577	GvAV (PL_defgv) = coro->args; coro->args = 0;
548		578
549	SPAGAIN;
550
551	Zero (&myop, 1, UNOP);	579	Zero (&myop, 1, LOGOP);
552	myop.op_next = Nullop;	580	myop.op_next = Nullop;
553	myop.op_flags = OPf_WANT_VOID;	581	myop.op_flags = OPf_WANT_VOID;
554		582
555	PL_op = (OP *)&myop;	583	PL_op = (OP *)&myop;
556		584
557	PUSHMARK(SP);	585	PUSHMARK (SP);
558	XPUSHs (sub_init);	586	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
559	PUTBACK;	587	PUTBACK;
560	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	588	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
561	SPAGAIN;	589	SPAGAIN;
562		590
563	ENTER; /* necessary e.g. for dounwind */	591	ENTER; /* necessary e.g. for dounwind */
		592	}
564	}	593	}
565		594
566	static void	595	static void
567	free_coro_mortal ()	596	free_coro_mortal ()
568	{	597	{
…		…
571	SvREFCNT_dec (coro_mortal);	600	SvREFCNT_dec (coro_mortal);
572	coro_mortal = 0;	601	coro_mortal = 0;
573	}	602	}
574	}	603	}
575		604
		605	static void NOINLINE
		606	prepare_cctx (coro_cctx *cctx)
		607	{
		608	dSP;
		609	LOGOP myop;
		610
		611	Zero (&myop, 1, LOGOP);
		612	myop.op_next = PL_op;
		613	myop.op_flags = OPf_WANT_VOID;
		614
		615	sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx));
		616
		617	PUSHMARK (SP);
		618	XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
		619	PUTBACK;
		620	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);
		621	SPAGAIN;
		622	}
		623
576	static void	624	static void
577	coro_run (void *arg)	625	coro_run (void *arg)
578	{	626	{
		627	/* coro_run is the alternative epilogue of transfer() */
		628	UNLOCK;
		629
579	/*	630	/*
580	* this is a _very_ stripped down perl interpreter ;)	631	* this is a _very_ stripped down perl interpreter ;)
581	*/	632	*/
582	dTHX;
583	int ret;
584
585	UNLOCK;
586
587	PL_top_env = &PL_start_env;	633	PL_top_env = &PL_start_env;
588		634
589	sv_setiv (get_sv ("Coro::State::cctx_stack", FALSE), PTR2IV ((coro_stack *)arg));	635	/* inject call to cctx_init */
590	sv_setiv (get_sv ("Coro::State::cctx_restartop", FALSE), PTR2IV (PL_op));	636	prepare_cctx ((coro_cctx *)arg);
591
592	/* continue at cctx_init, without entersub */
593	PL_restartop = CvSTART (get_cv ("Coro::State::cctx_init", FALSE));
594		637
595	/* somebody will hit me for both perl_run and PL_restartop */	638	/* somebody will hit me for both perl_run and PL_restartop */
596	ret = perl_run (PERL_GET_CONTEXT);	639	perl_run (PL_curinterp);
597	printf ("ret %d\n", ret);//D
598		640
599	fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr);	641	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
600	abort ();	642	abort ();
601	}	643	}
602		644
603	static coro_stack *	645	static coro_cctx *
604	stack_new ()	646	cctx_new ()
605	{	647	{
606	coro_stack *stack;	648	coro_cctx *cctx;
607		649
		650	++cctx_count;
		651
608	New (0, stack, 1, coro_stack);	652	New (0, cctx, 1, coro_cctx);
609		653
610	#if HAVE_MMAP	654	#if HAVE_MMAP
611		655
612	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	656	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
613	/* mmap suppsedly does allocate-on-write for us */	657	/* mmap suppsedly does allocate-on-write for us */
614	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	658	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
615		659
616	if (stack->sptr == (void *)-1)	660	if (cctx->sptr == (void *)-1)
617	{	661	{
618	perror ("FATAL: unable to mmap stack for coroutine");	662	perror ("FATAL: unable to mmap stack for coroutine");
619	_exit (EXIT_FAILURE);	663	_exit (EXIT_FAILURE);
620	}	664	}
621		665
622	# if STACKGUARD	666	# if STACKGUARD
623	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	667	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
624	# endif	668	# endif
625		669
626	#else	670	#else
627		671
628	stack->ssize = STACKSIZE * (long)sizeof (long);	672	cctx->ssize = STACKSIZE * (long)sizeof (long);
629	New (0, stack->sptr, STACKSIZE, long);	673	New (0, cctx->sptr, STACKSIZE, long);
630		674
631	if (!stack->sptr)	675	if (!cctx->sptr)
632	{	676	{
633	perror (stderr, "FATAL: unable to malloc stack for coroutine");	677	perror ("FATAL: unable to malloc stack for coroutine");
634	_exit (EXIT_FAILURE);	678	_exit (EXIT_FAILURE);
635	}	679	}
636		680
637	#endif	681	#endif
638		682
		683	#if USE_VALGRIND
		684	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
		685	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
		686	cctx->ssize + (char *)cctx->sptr
		687	);
		688	#endif
		689
639	coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize);	690	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
640		691
641	return stack;	692	return cctx;
642	}	693	}
643		694
644	static void	695	static void
645	stack_free (coro_stack *stack)	696	cctx_free (coro_cctx *cctx)
646	{	697	{
647	if (!stack)	698	if (!cctx)
648	return;	699	return;
649		700
		701	--cctx_count;
		702
		703	#if USE_VALGRIND
		704	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
		705	#endif
		706
650	#if HAVE_MMAP	707	#if HAVE_MMAP
651	munmap (stack->sptr, stack->ssize);	708	munmap (cctx->sptr, cctx->ssize);
652	#else	709	#else
653	Safefree (stack->sptr);	710	Safefree (cctx->sptr);
654	#endif	711	#endif
655		712
656	Safefree (stack);	713	Safefree (cctx);
657	}	714	}
658		715
659	static coro_stack *stack_first;
660
661	static coro_stack *	716	static coro_cctx *
662	stack_get ()	717	cctx_get ()
663	{	718	{
664	coro_stack *stack;	719	coro_cctx *cctx;
665		720
666	if (stack_first)	721	if (cctx_first)
667	{	722	{
668	stack = stack_first;	723	--cctx_idle;
		724	cctx = cctx_first;
669	stack_first = stack->next;	725	cctx_first = cctx->next;
670	}	726	}
671	else	727	else
672	{	728	{
673	stack = stack_new ();	729	cctx = cctx_new ();
674	PL_op = PL_op->op_next;	730	PL_op = PL_op->op_next;
675	}	731	}
676		732
677	return stack;	733	return cctx;
678	}	734	}
679		735
680	static void	736	static void
681	stack_put (coro_stack *stack)	737	cctx_put (coro_cctx *cctx)
682	{	738	{
683	stack->next = stack_first;	739	++cctx_idle;
684	stack_first = stack;	740	cctx->next = cctx_first;
		741	cctx_first = cctx;
685	}	742	}
686		743
687	/* never call directly, always through the coro_state_transfer global variable */	744	/* never call directly, always through the coro_state_transfer global variable */
688	static void	745	static void NOINLINE
689	transfer_impl (struct coro prev, struct coro next, int flags)	746	transfer (struct coro prev, struct coro next, int flags)
690	{	747	{
691	dSTACKLEVEL;	748	dSTACKLEVEL;
692		749
693	/* sometimes transfer is only called to set idle_sp */	750	/* sometimes transfer is only called to set idle_sp */
694	if (flags == TRANSFER_SET_STACKLEVEL)	751	if (flags == TRANSFER_SET_STACKLEVEL)
695	((coro_stack *)prev)->idle_sp = STACKLEVEL;	752	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
696	else if (prev != next)	753	else if (prev != next)
697	{	754	{
698	coro_stack *prev__stack;	755	coro_cctx *prev__cctx;
699		756
700	LOCK;	757	LOCK;
701		758
702	if (next->mainstack)	759	if (next->mainstack)
703	{	760	{
…		…
711	/* first get rid of the old state */	768	/* first get rid of the old state */
712	SAVE (prev, -1);	769	SAVE (prev, -1);
713	/* setup coroutine call */	770	/* setup coroutine call */
714	setup_coro (next);	771	setup_coro (next);
715	/* need a stack */	772	/* need a stack */
716	next->stack = 0;	773	next->cctx = 0;
717	}	774	}
718		775
719	if (!prev->stack)	776	if (!prev->cctx)
720	/* create a new empty context */	777	/* create a new empty context */
721	Newz (0, prev->stack, 1, coro_stack);	778	Newz (0, prev->cctx, 1, coro_cctx);
722		779
723	prev__stack = prev->stack;	780	prev__cctx = prev->cctx;
724		781
725	/* possibly "free" the stack */	782	/* possibly "free" the cctx */
726	if (prev__stack->idle_sp == STACKLEVEL)	783	if (prev__cctx->idle_sp == STACKLEVEL)
727	{	784	{
728	stack_put (prev__stack);	785	cctx_put (prev__cctx);
729	prev->stack = 0;	786	prev->cctx = 0;
730	}	787	}
731		788
732	if (!next->stack)	789	if (!next->cctx)
733	next->stack = stack_get ();	790	next->cctx = cctx_get ();
734		791
735	if (prev__stack != next->stack)	792	if (prev__cctx != next->cctx)
736	{	793	{
737	prev__stack->top_env = PL_top_env;	794	prev__cctx->top_env = PL_top_env;
738	PL_top_env = next->stack->top_env;	795	PL_top_env = next->cctx->top_env;
739	coro_transfer (&prev__stack->cctx, &next->stack->cctx);	796	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
740	}	797	}
741		798
742	free_coro_mortal ();	799	free_coro_mortal ();
743		800
744	UNLOCK;	801	UNLOCK;
745	}	802	}
746	}	803	}
747
748	/* use this function pointer to call the above function */
749	/* this is done to increase chances of the compiler not inlining the call */
750	/* not static to make it even harder for the compiler (and theoretically impossible in most cases */
751	void (coro_state_transfer)(struct coro prev, struct coro *next, int flags) = transfer_impl;
752		804
753	struct transfer_args	805	struct transfer_args
754	{	806	{
755	struct coro prev, next;	807	struct coro prev, next;
756	int flags;	808	int flags;
757	};	809	};
758		810
759	#define TRANSFER(ta) coro_state_transfer ((ta).prev, (ta).next, (ta).flags)	811	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)
760		812
761	static void	813	static void
762	coro_state_destroy (struct coro *coro)	814	coro_state_destroy (struct coro *coro)
763	{	815	{
764	if (coro->refcnt--)	816	if (coro->refcnt--)
…		…
769	struct coro temp;	821	struct coro temp;
770		822
771	SAVE ((&temp), TRANSFER_SAVE_ALL);	823	SAVE ((&temp), TRANSFER_SAVE_ALL);
772	LOAD (coro);	824	LOAD (coro);
773		825
774	destroy_stacks ();	826	coro_destroy_stacks ();
775		827
776	LOAD ((&temp)); /* this will get rid of defsv etc.. */	828	LOAD ((&temp)); /* this will get rid of defsv etc.. */
777		829
778	coro->mainstack = 0;	830	coro->mainstack = 0;
779	}	831	}
780		832
781	stack_free (coro->stack);	833	cctx_free (coro->cctx);
782	SvREFCNT_dec (coro->args);	834	SvREFCNT_dec (coro->args);
783	Safefree (coro);	835	Safefree (coro);
784	}	836	}
785		837
786	static int	838	static int
…		…
802	++coro->refcnt;	854	++coro->refcnt;
803		855
804	return 0;	856	return 0;
805	}	857	}
806		858
807	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };	859	static MGVTBL coro_state_vtbl = {
		860	0, 0, 0, 0,
		861	coro_state_clear,
		862	0,
		863	#ifdef MGf_DUP
		864	coro_state_dup,
		865	#else
		866	# define MGf_DUP 0
		867	#endif
		868	};
808		869
809	static struct coro *	870	static struct coro *
810	SvSTATE (SV *coro)	871	SvSTATE (SV *coro)
811	{	872	{
812	HV *stash;	873	HV *stash;
…		…
909	static void	970	static void
910	prepare_schedule (struct transfer_args *ta)	971	prepare_schedule (struct transfer_args *ta)
911	{	972	{
912	SV current, prev, *next;	973	SV current, prev, *next;
913		974
914	LOCK;
915
916	current = GvSV (coro_current);	975	current = GvSV (coro_current);
917		976
918	for (;;)	977	for (;;)
919	{	978	{
920	LOCK;	979	LOCK;
921
922	next = coro_deq (PRIO_MIN);	980	next = coro_deq (PRIO_MIN);
		981	UNLOCK;
923		982
924	if (next)	983	if (next)
925	break;	984	break;
926
927	UNLOCK;
928		985
929	{	986	{
930	dSP;	987	dSP;
931		988
932	ENTER;	989	ENTER;
…		…
943		1000
944	prev = SvRV (current);	1001	prev = SvRV (current);
945	SvRV (current) = next;	1002	SvRV (current) = next;
946		1003
947	/* free this only after the transfer */	1004	/* free this only after the transfer */
		1005	LOCK;
948	free_coro_mortal ();	1006	free_coro_mortal ();
		1007	UNLOCK;
949	coro_mortal = prev;	1008	coro_mortal = prev;
950		1009
951	ta->prev = SvSTATE (prev);	1010	ta->prev = SvSTATE (prev);
952	ta->next = SvSTATE (next);	1011	ta->next = SvSTATE (next);
953	ta->flags = TRANSFER_SAVE_ALL;	1012	ta->flags = TRANSFER_SAVE_ALL;
954
955	UNLOCK;
956	}	1013	}
957		1014
958	static void	1015	static void
959	prepare_cede (struct transfer_args *ta)	1016	prepare_cede (struct transfer_args *ta)
960	{	1017	{
…		…
1025	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1082	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1026	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1083	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1027		1084
1028	for (i = 1; i < items; i++)	1085	for (i = 1; i < items; i++)
1029	av_push (coro->args, newSVsv (ST (i)));	1086	av_push (coro->args, newSVsv (ST (i)));
1030
1031	/coro->mainstack = 0; //actual work is done inside transfer /
1032	/coro->stack = 0;/
1033	}	1087	}
1034	OUTPUT:	1088	OUTPUT:
1035	RETVAL	1089	RETVAL
1036		1090
1037	void	1091	void
…		…
1046	struct transfer_args ta;	1100	struct transfer_args ta;
1047		1101
1048	switch (ix)	1102	switch (ix)
1049	{	1103	{
1050	case 0:	1104	case 0:
1051	ta.prev = (struct coro )INT2PTR (coro_stack , SvIV (ST (0)));	1105	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1052	ta.next = 0;	1106	ta.next = 0;
1053	ta.flags = TRANSFER_SET_STACKLEVEL;	1107	ta.flags = TRANSFER_SET_STACKLEVEL;
1054	break;	1108	break;
1055		1109
1056	case 1:	1110	case 1:
…		…
1110	++coro_src->refcnt;	1164	++coro_src->refcnt;
1111	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;	1165	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1112	}	1166	}
1113		1167
1114	void	1168	void
1115	_nonlocal_goto (IV nextop)
1116	CODE:
1117	/* uuh, somebody will kill me again for this */
1118	PL_op->op_next = INT2PTR (OP *, nextop);
1119
1120	void
1121	_exit (code)	1169	_exit (code)
1122	int code	1170	int code
1123	PROTOTYPE: $	1171	PROTOTYPE: $
1124	CODE:	1172	CODE:
1125	_exit (code);	1173	_exit (code);
		1174
		1175	int
		1176	cctx_count ()
		1177	CODE:
		1178	RETVAL = cctx_count;
		1179	OUTPUT:
		1180	RETVAL
		1181
		1182	int
		1183	cctx_idle ()
		1184	CODE:
		1185	RETVAL = cctx_idle;
		1186	OUTPUT:
		1187	RETVAL
1126		1188
1127	MODULE = Coro::State PACKAGE = Coro	1189	MODULE = Coro::State PACKAGE = Coro
1128		1190
1129	BOOT:	1191	BOOT:
1130	{	1192	{

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Comparing Coro/Coro/State.xs (file contents): Revision 1.98 by root, Sun Nov 26 21:25:53 2006 UTC vs. Revision 1.107 by root, Mon Nov 27 02:15:51 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.98 by root, Sun Nov 26 21:25:53 2006 UTC vs.
Revision 1.107 by root, Mon Nov 27 02:15:51 2006 UTC