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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.90 by root, Sat Nov 25 00:56:35 2006 UTC vs.
Revision 1.96 by root, Sun Nov 26 18:25:11 2006 UTC

…		…
27	# ifndef IS_PADCONST	27	# ifndef IS_PADCONST
28	# define IS_PADCONST(v) 0	28	# define IS_PADCONST(v) 0
29	# endif	29	# endif
30	#endif	30	#endif
31		31
		32	#include <stdio.h>
32	#include <errno.h>	33	#include <errno.h>
33		34
34	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	35	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
35	# undef STACKGUARD	36	# undef STACKGUARD
36	#endif	37	#endif
…		…
57	# else	58	# else
58	# define BOOT_PAGESIZE	59	# define BOOT_PAGESIZE
59	# endif	60	# endif
60	#endif	61	#endif
61		62
62	#define SUB_INIT "Coro::State::initialize"
63
64	/* The next macro should declare a variable stacklevel that contains and approximation	63	/* The next macro should declare a variable stacklevel that contains and approximation
65	* to the current C stack pointer. Its property is that it changes with each call	64	* to the current C stack pointer. Its property is that it changes with each call
66	* and should be unique. */	65	* and should be unique. */
		66	#define dSTACKLEVEL int stacklevel
67	#define dSTACKLEVEL void *stacklevel = &stacklevel	67	#define STACKLEVEL ((void *)&stacklevel)
68		68
69	#define IN_DESTRUCT (PL_main_cv == Nullcv)	69	#define IN_DESTRUCT (PL_main_cv == Nullcv)
70		70
71	#define labs(l) ((l) >= 0 ? (l) : -(l))
72
73	#include "CoroAPI.h"	71	#include "CoroAPI.h"
		72
		73	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
74		74
75	#ifdef USE_ITHREADS	75	#ifdef USE_ITHREADS
76	static perl_mutex coro_mutex;	76	static perl_mutex coro_mutex;
77	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	77	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
78	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	78	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
…		…
84	static struct CoroAPI coroapi;	84	static struct CoroAPI coroapi;
85	static AV main_mainstack; / used to differentiate between $main and others */	85	static AV main_mainstack; / used to differentiate between $main and others */
86	static HV coro_state_stash, coro_stash;	86	static HV coro_state_stash, coro_stash;
87	static SV coro_mortal; / will be freed after next transfer */	87	static SV coro_mortal; / will be freed after next transfer */
88		88
89	/* this is actually not just the c stack but also c registers etc... */	89	/* this is a structure representing a c-level coroutine */
90	typedef struct coro_stack {	90	typedef struct coro_stack {
91	struct coro_stack *next;	91	struct coro_stack *next;
92		92
93	void *idle_sp;	93	/* the stack */
94	void *sptr;	94	void *sptr;
95	long ssize; /* positive == mmap, otherwise malloc */	95	long ssize; /* positive == mmap, otherwise malloc */
96		96
97	/* cpu state */	97	/* cpu state */
		98	void idle_sp; / sp of top-level transfer/schedule/cede call */
		99	JMPENV *top_env;
98	coro_context cctx;	100	coro_context cctx;
99	} coro_stack;	101	} coro_stack;
100		102
101	static coro_stack *main_stack;	103	/* this is a structure representing a perl-level coroutine */
102
103	struct coro {	104	struct coro {
		105	/* the c coroutine allocated to this perl coroutine, if any */
		106	coro_stack *stack;
		107
		108	/* data associated with this coroutine (initial args) */
		109	AV *args;
		110	int refcnt;
		111
104	/* optionally saved, might be zero */	112	/* optionally saved, might be zero */
105	AV *defav;	113	AV *defav;
106	SV *defsv;	114	SV *defsv;
107	SV *errsv;	115	SV *errsv;
108		116
109	/* saved global state not related to stacks */	117	/* saved global state not related to stacks */
110	U8 dowarn;	118	U8 dowarn;
111	I32 in_eval;	119	I32 in_eval;
112
113	/* the c stack, if any */
114	coro_stack *stack;
115		120
116	/* the stacks and related info (callchain etc..) */	121	/* the stacks and related info (callchain etc..) */
117	PERL_SI *curstackinfo;	122	PERL_SI *curstackinfo;
118	AV *curstack;	123	AV *curstack;
119	AV *mainstack;	124	AV *mainstack;
…		…
140	OP **retstack;	145	OP **retstack;
141	I32 retstack_ix;	146	I32 retstack_ix;
142	I32 retstack_max;	147	I32 retstack_max;
143	PMOP *curpm;	148	PMOP *curpm;
144	COP *curcop;	149	COP *curcop;
145	JMPENV *top_env;
146		150
147	/* coro process data */	151	/* coro process data */
148	int prio;	152	int prio;
149
150	/* data associated with this coroutine (initial args) */
151	AV *args;
152	int refcnt;
153	};	153	};
154		154
155	typedef struct coro *Coro__State;	155	typedef struct coro *Coro__State;
156	typedef struct coro *Coro__State_or_hashref;	156	typedef struct coro *Coro__State_or_hashref;
157		157
…		…
229	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	229	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
230	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	230	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
231	else	231	else
232	{	232	{
233	#if 0	233	#if 0
234	/* this should work - but it doesn't :( */	234	/* this is probably cleaner, but also slower? */
235	CV *cp = Perl_cv_clone (aTHX_ cv);	235	CV *cp = Perl_cv_clone (aTHX_ cv);
236	CvPADLIST (cv) = CvPADLIST (cp);	236	CvPADLIST (cv) = CvPADLIST (cp);
237	CvPADLIST (cp) = 0;	237	CvPADLIST (cp) = 0;
238	SvREFCNT_dec (cp);	238	SvREFCNT_dec (cp);
239	#else	239	#else
…		…
300	PL_retstack_ix = c->retstack_ix;	300	PL_retstack_ix = c->retstack_ix;
301	PL_retstack_max = c->retstack_max;	301	PL_retstack_max = c->retstack_max;
302	#endif	302	#endif
303	PL_curpm = c->curpm;	303	PL_curpm = c->curpm;
304	PL_curcop = c->curcop;	304	PL_curcop = c->curcop;
305	PL_top_env = c->top_env;
306		305
307	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	306	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
308	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	307	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
309	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	308	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
310		309
…		…
428	c->retstack_ix = PL_retstack_ix;	427	c->retstack_ix = PL_retstack_ix;
429	c->retstack_max = PL_retstack_max;	428	c->retstack_max = PL_retstack_max;
430	#endif	429	#endif
431	c->curpm = PL_curpm;	430	c->curpm = PL_curpm;
432	c->curcop = PL_curcop;	431	c->curcop = PL_curcop;
433	c->top_env = PL_top_env;
434	}	432	}
435		433
436	/*	434	/*
437	* allocate various perl stacks. This is an exact copy	435	* allocate various perl stacks. This is an exact copy
438	* of perl.c:init_stacks, except that it uses less memory	436	* of perl.c:init_stacks, except that it uses less memory
…		…
540	* emulate part of the perl startup here.	538	* emulate part of the perl startup here.
541	*/	539	*/
542	dTHX;	540	dTHX;
543	dSP;	541	dSP;
544	UNOP myop;	542	UNOP myop;
545	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);	543	SV sub_init = (SV )get_cv ("Coro::State::coro_init", FALSE);
546		544
547	coro_init_stacks (aTHX);	545	coro_init_stacks (aTHX);
548	/PL_curcop = 0;/	546	/PL_curcop = 0;/
549	/PL_in_eval = PL_in_eval;/ /* inherit */	547	/PL_in_eval = PL_in_eval;/ /* inherit */
550	SvREFCNT_dec (GvAV (PL_defgv));	548	SvREFCNT_dec (GvAV (PL_defgv));
…		…
566		564
567	ENTER; /* necessary e.g. for dounwind */	565	ENTER; /* necessary e.g. for dounwind */
568	}	566	}
569		567
570	static void	568	static void
571	transfer_tail ()	569	free_coro_mortal ()
572	{	570	{
573	if (coro_mortal)	571	if (coro_mortal)
574	{	572	{
575	SvREFCNT_dec (coro_mortal);	573	SvREFCNT_dec (coro_mortal);
576	coro_mortal = 0;	574	coro_mortal = 0;
577	}	575	}
578
579	UNLOCK;
580	}	576	}
581		577
582	static void	578	static void
583	coro_run (void *arg)	579	coro_run (void *arg)
584	{	580	{
585	/*	581	/*
586	* this is a _very_ stripped down perl interpreter ;)	582	* this is a _very_ stripped down perl interpreter ;)
587	*/	583	*/
588	dTHX;	584	dTHX;
		585	int ret;
589		586
590	transfer_tail ();	587	UNLOCK;
591		588
592	PL_top_env = &PL_start_env;	589	PL_top_env = &PL_start_env;
593	PL_restartop = PL_op->op_next;	590
		591	sv_setiv (get_sv ("Coro::State::cctx_stack", FALSE), PTR2IV ((coro_stack *)arg));
		592	sv_setiv (get_sv ("Coro::State::cctx_restartop", FALSE), PTR2IV (PL_op));
		593
		594	/* continue at cctx_init, without entersub */
		595	PL_restartop = CvSTART (get_cv ("Coro::State::cctx_init", FALSE));
		596
594	/* somebody will hit me for both perl_run and PL_restart_top */	597	/* somebody will hit me for both perl_run and PL_restartop */
595	perl_run (aTHX_ PERL_GET_CONTEXT);	598	ret = perl_run (aTHX_ PERL_GET_CONTEXT);
		599	printf ("ret %d\n", ret);//D
596		600
		601	fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr);
597	abort ();	602	abort ();
598	}	603	}
599		604
600	static coro_stack *	605	static coro_stack *
601	stack_new ()	606	stack_new ()
…		…
604		609
605	New (0, stack, 1, coro_stack);	610	New (0, stack, 1, coro_stack);
606		611
607	#if HAVE_MMAP	612	#if HAVE_MMAP
608		613
609	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */	614	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
		615	/* mmap suppsedly does allocate-on-write for us */
610	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	616	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
611		617
612	if (stack->sptr == (void *)-1)	618	if (stack->sptr == (void *)-1)
613	{	619	{
614	fprintf (stderr, "FATAL: unable to mmap stack for coroutine\n");	620	perror ("FATAL: unable to mmap stack for coroutine");
615	_exit (EXIT_FAILURE);	621	_exit (EXIT_FAILURE);
616	}	622	}
617		623
		624	# if STACKGUARD
618	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	625	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		626	# endif
619		627
620	#else	628	#else
621		629
622	stack->ssize = STACKSIZE * (long)sizeof (long);	630	stack->ssize = STACKSIZE * (long)sizeof (long);
623	New (0, stack->sptr, STACKSIZE, long);	631	New (0, stack->sptr, STACKSIZE, long);
624		632
625	if (!stack->sptr)	633	if (!stack->sptr)
626	{	634	{
627	fprintf (stderr, "FATAL: unable to malloc stack for coroutine\n");	635	perror (stderr, "FATAL: unable to malloc stack for coroutine");
628	_exit (EXIT_FAILURE);	636	_exit (EXIT_FAILURE);
629	}	637	}
630		638
631	#endif	639	#endif
632		640
633	coro_create (&stack->cctx, coro_run, 0, stack->sptr, stack->ssize);	641	coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize);
634		642
635	return stack;	643	return stack;
636	}	644	}
637		645
638	static void	646	static void
639	stack_free (coro_stack *stack)	647	stack_free (coro_stack *stack)
640	{	648	{
641	if (!stack \|\| stack == main_stack)	649	if (!stack)
642	return;	650	return;
643		651
644	#if HAVE_MMAP	652	#if HAVE_MMAP
645	munmap (stack->sptr, stack->ssize);	653	munmap (stack->sptr, stack->ssize);
646	#else	654	#else
…		…
650	Safefree (stack);	658	Safefree (stack);
651	}	659	}
652		660
653	static coro_stack *stack_first;	661	static coro_stack *stack_first;
654		662
655	static void	663	static coro_stack *
656	stack_get (struct coro *coro)	664	stack_get ()
657	{	665	{
		666	coro_stack *stack;
		667
658	if (stack_first)	668	if (stack_first)
659	{	669	{
660	coro->stack = stack_first;	670	stack = stack_first;
661	stack_first = stack_first->next;	671	stack_first = stack->next;
662	}	672	}
663	else	673	else
		674	{
664	coro->stack = stack_new ();	675	stack = stack_new ();
		676	PL_op = PL_op->op_next;
		677	}
		678
		679	return stack;
665	}	680	}
666		681
667	static void	682	static void
668	stack_put (coro_stack *stack)	683	stack_put (coro_stack *stack)
669	{	684	{
…		…
676	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)	691	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)
677	{	692	{
678	dSTACKLEVEL;	693	dSTACKLEVEL;
679		694
680	/* sometimes transfer is only called to set idle_sp */	695	/* sometimes transfer is only called to set idle_sp */
681	if (!prev->stack->idle_sp)	696	if (flags == TRANSFER_SET_STACKLEVEL)
682	prev->stack->idle_sp = stacklevel;	697	((coro_stack *)prev)->idle_sp = STACKLEVEL;
683
684	LOCK;
685
686	if (prev != next)	698	else if (prev != next)
687	{	699	{
688	coro_stack *prev_stack = prev->stack;	700	coro_stack *prev__stack;
689		701
690	/* possibly "free" the stack */	702	LOCK;
691	if (prev_stack->idle_sp == stacklevel)
692	{
693	stack_put (prev_stack);
694	prev->stack = 0;
695	}
696		703
697	if (next->mainstack)	704	if (next->mainstack)
698	{	705	{
699	/* coroutine already started */	706	/* coroutine already started */
700	SAVE (prev, flags);	707	SAVE (prev, flags);
…		…
705	/* need to start coroutine */	712	/* need to start coroutine */
706	/* first get rid of the old state */	713	/* first get rid of the old state */
707	SAVE (prev, -1);	714	SAVE (prev, -1);
708	/* setup coroutine call */	715	/* setup coroutine call */
709	setup_coro (next);	716	setup_coro (next);
710	/* need to change stack from main_stack to real one */	717	/* need a stack */
711	next->stack = 0;	718	next->stack = 0;
712	}	719	}
713		720
		721	if (!prev->stack)
		722	/* create a new empty context */
		723	Newz (0, prev->stack, 1, coro_stack);
		724
		725	prev__stack = prev->stack;
		726
		727	/* possibly "free" the stack */
		728	if (prev__stack->idle_sp == STACKLEVEL)
		729	{
		730	stack_put (prev__stack);
		731	prev->stack = 0;
		732	}
		733
714	if (!next->stack)	734	if (!next->stack)
715	stack_get (next);	735	next->stack = stack_get ();
716		736
717	if (prev_stack != next->stack)	737	if (prev__stack != next->stack)
		738	{
		739	prev__stack->top_env = PL_top_env;
		740	PL_top_env = next->stack->top_env;
718	coro_transfer (&prev_stack->cctx, &next->stack->cctx);	741	coro_transfer (&prev__stack->cctx, &next->stack->cctx);
		742	}
		743
		744	free_coro_mortal ();
		745
		746	UNLOCK;
719	}	747	}
720
721	transfer_tail ();
722	}	748	}
723		749
724	/* use this function pointer to call the above function */	750	/* use this function pointer to call the above function */
725	/* this is done to increase chances of the compiler not inlining the call */	751	/* this is done to increase chances of the compiler not inlining the call */
		752	/* not static to make it even harder for the compiler (and theoretically impossible in most cases */
726	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;	753	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;
		754
		755	struct transfer_args
		756	{
		757	struct coro prev, next;
		758	int flags;
		759	};
		760
		761	#define TRANSFER(ta) coro_state_transfer ((ta).prev, (ta).next, (ta).flags)
727		762
728	static void	763	static void
729	coro_state_destroy (struct coro *coro)	764	coro_state_destroy (struct coro *coro)
730	{	765	{
731	if (coro->refcnt--)	766	if (coro->refcnt--)
…		…
794	assert (mg->mg_type == PERL_MAGIC_ext);	829	assert (mg->mg_type == PERL_MAGIC_ext);
795	return (struct coro *)mg->mg_ptr;	830	return (struct coro *)mg->mg_ptr;
796	}	831	}
797		832
798	static void	833	static void
		834	prepare_transfer (pTHX_ struct transfer_args ta, SV prev, SV *next, int flags)
		835	{
		836	ta->prev = SvSTATE (prev);
		837	ta->next = SvSTATE (next);
		838	ta->flags = flags;
		839	}
		840
		841	static void
799	api_transfer (pTHX_ SV prev, SV next, int flags)	842	api_transfer (SV prev, SV next, int flags)
800	{	843	{
801	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	844	dTHX;
		845	struct transfer_args ta;
		846
		847	prepare_transfer (aTHX_ &ta, prev, next, flags);
		848	TRANSFER (ta);
802	}	849	}
803		850
804	/ Coro ******************************************************************/	851	/ Coro ******************************************************************/
805		852
806	#define PRIO_MAX 3	853	#define PRIO_MAX 3
…		…
860	coro_enq (aTHX_ SvREFCNT_inc (coro));	907	coro_enq (aTHX_ SvREFCNT_inc (coro));
861	UNLOCK;	908	UNLOCK;
862	}	909	}
863		910
864	static void	911	static void
865	api_schedule (void)	912	prepare_schedule (aTHX_ struct transfer_args *ta)
866	{	913	{
867	dTHX;
868
869	SV prev, next;	914	SV current, prev, *next;
		915
		916	LOCK;
		917
870	SV *current = GvSV (coro_current);	918	current = GvSV (coro_current);
871		919
872	for (;;)	920	for (;;)
873	{	921	{
874	LOCK;	922	LOCK;
875		923
…		…
897		945
898	prev = SvRV (current);	946	prev = SvRV (current);
899	SvRV (current) = next;	947	SvRV (current) = next;
900		948
901	/* free this only after the transfer */	949	/* free this only after the transfer */
		950	free_coro_mortal ();
902	coro_mortal = prev;	951	coro_mortal = prev;
903		952
		953	ta->prev = SvSTATE (prev);
		954	ta->next = SvSTATE (next);
		955	ta->flags = TRANSFER_SAVE_ALL;
		956
904	UNLOCK;	957	UNLOCK;
905
906	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), TRANSFER_SAVE_ALL);
907	}	958	}
908		959
909	static int coro_cede_self;	960	static void
		961	prepare_cede (aTHX_ struct transfer_args *ta)
		962	{
		963	LOCK;
		964	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		965	UNLOCK;
		966
		967	prepare_schedule (ta);
		968	}
		969
		970	static void
		971	api_schedule (void)
		972	{
		973	dTHX;
		974	struct transfer_args ta;
		975
		976	prepare_schedule (&ta);
		977	TRANSFER (ta);
		978	}
910		979
911	static void	980	static void
912	api_cede (void)	981	api_cede (void)
913	{	982	{
914	dTHX;	983	dTHX;
915	SV *current = SvREFCNT_inc (SvRV (GvSV (coro_current)));	984	struct transfer_args ta;
916		985
917	LOCK;	986	prepare_cede (&ta);
918		987	TRANSFER (ta);
919	if (coro_cede_self)
920	{
921	AV *runqueue = coro_ready [PRIO_MAX - PRIO_MIN];
922	av_unshift (runqueue, 1);
923	av_store (runqueue, 0, current);
924	coro_nready++;
925	coro_cede_self = 0;
926	}
927	else
928	coro_enq (aTHX_ current);
929
930	UNLOCK;
931
932	api_schedule ();
933	}	988	}
934		989
935	MODULE = Coro::State PACKAGE = Coro::State	990	MODULE = Coro::State PACKAGE = Coro::State
936		991
937	PROTOTYPES: DISABLE	992	PROTOTYPES: DISABLE
…		…
952	main_mainstack = PL_mainstack;	1007	main_mainstack = PL_mainstack;
953		1008
954	coroapi.ver = CORO_API_VERSION;	1009	coroapi.ver = CORO_API_VERSION;
955	coroapi.transfer = api_transfer;	1010	coroapi.transfer = api_transfer;
956		1011
957	Newz (0, main_stack, 1, coro_stack);
958	main_stack->idle_sp = (void *)-1;
959
960	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1012	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
961	}	1013	}
962		1014
963	SV *	1015	SV *
964	new (char *klass, ...)	1016	new (char *klass, ...)
…		…
973		1025
974	hv = newHV ();	1026	hv = newHV ();
975	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1027	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
976	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1028	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
977		1029
978	av_push (coro->args, newSVsv (RETVAL));
979	for (i = 1; i < items; i++)	1030	for (i = 1; i < items; i++)
980	av_push (coro->args, newSVsv (ST (i)));	1031	av_push (coro->args, newSVsv (ST (i)));
981		1032
982	coro->stack = main_stack;
983	/coro->mainstack = 0; //actual work is done inside transfer /	1033	/coro->mainstack = 0; //actual work is done inside transfer /
984	/coro->stack = 0;/	1034	/coro->stack = 0;/
985	}	1035	}
986	OUTPUT:	1036	OUTPUT:
987	RETVAL	1037	RETVAL
988		1038
989	void	1039	void
990	transfer (prev, next, flags)	1040	_set_stacklevel (...)
991	SV *prev	1041	ALIAS:
992	SV *next	1042	Coro::State::transfer = 1
993	int flags	1043	Coro::schedule = 2
		1044	Coro::cede = 3
		1045	Coro::Cont::yield = 4
994	CODE:	1046	CODE:
995	PUTBACK;
996	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
997	SPAGAIN;
998
999	int
1000	prio (Coro::State coro, int newprio = 0)
1001	ALIAS:
1002	nice = 1
1003	CODE:
1004	{	1047	{
1005	RETVAL = coro->prio;	1048	struct transfer_args ta;
1006		1049
1007	if (items > 1)	1050	switch (ix)
1008	{	1051	{
		1052	case 0:
		1053	ta.prev = (struct coro )INT2PTR (coro_stack , SvIV (ST (0)));
		1054	ta.next = 0;
		1055	ta.flags = TRANSFER_SET_STACKLEVEL;
		1056	break;
		1057
		1058	case 1:
1009	if (ix)	1059	if (items != 3)
1010	newprio += coro->prio;	1060	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);
1011		1061
1012	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1062	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));
1013	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1063	break;
1014		1064
1015	coro->prio = newprio;	1065	case 2:
		1066	prepare_schedule (&ta);
		1067	break;
		1068
		1069	case 3:
		1070	prepare_cede (&ta);
		1071	break;
		1072
		1073	case 4:
		1074	{
		1075	SV *yieldstack;
		1076	SV *sv;
		1077	AV *defav = GvAV (PL_defgv);
		1078
		1079	yieldstack = *hv_fetch (
		1080	(HV *)SvRV (GvSV (coro_current)),
		1081	"yieldstack", sizeof ("yieldstack") - 1,
		1082	0
		1083	);
		1084
		1085	/* set up @_ -- ugly */
		1086	av_clear (defav);
		1087	av_fill (defav, items - 1);
		1088	while (items--)
		1089	av_store (defav, items, SvREFCNT_inc (ST(items)));
		1090
		1091	sv = av_pop ((AV *)SvRV (yieldstack));
		1092	ta.prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
		1093	ta.next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
		1094	ta.flags = 0;
		1095	SvREFCNT_dec (sv);
		1096	}
		1097	break;
		1098
1016	}	1099	}
1017	}
1018		1100
1019	void	1101	TRANSFER (ta);
1020	_clear_idle_sp (Coro::State self)	1102	}
1021	CODE:
1022	self->stack->idle_sp = 0;
1023		1103
1024	void	1104	void
1025	_clone_state_from (SV dst, SV src)	1105	_clone_state_from (SV dst, SV src)
1026	CODE:	1106	CODE:
1027	{	1107	{
…		…
1030	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);	1110	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1031		1111
1032	++coro_src->refcnt;	1112	++coro_src->refcnt;
1033	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;	1113	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1034	}	1114	}
		1115
		1116	void
		1117	_nonlocal_goto (IV nextop)
		1118	CODE:
		1119	/* uuh, somebody will kill me again for this */
		1120	PL_op->op_next = INT2PTR (OP *, nextop);
1035		1121
1036	void	1122	void
1037	_exit (code)	1123	_exit (code)
1038	int code	1124	int code
1039	PROTOTYPE: $	1125	PROTOTYPE: $
1040	CODE:	1126	CODE:
1041	_exit (code);	1127	_exit (code);
1042		1128
1043	MODULE = Coro::State PACKAGE = Coro::Cont
1044
1045	void
1046	yield (...)
1047	PROTOTYPE: @
1048	CODE:
1049	{
1050	SV *yieldstack;
1051	SV *sv;
1052	AV *defav = GvAV (PL_defgv);
1053	struct coro prev, next;
1054
1055	yieldstack = *hv_fetch (
1056	(HV *)SvRV (GvSV (coro_current)),
1057	"yieldstack", sizeof ("yieldstack") - 1,
1058	0
1059	);
1060
1061	/* set up @_ -- ugly */
1062	av_clear (defav);
1063	av_fill (defav, items - 1);
1064	while (items--)
1065	av_store (defav, items, SvREFCNT_inc (ST(items)));
1066
1067	sv = av_pop ((AV *)SvRV (yieldstack));
1068	prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
1069	next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
1070	SvREFCNT_dec (sv);
1071
1072	coro_state_transfer (aTHX_ prev, next, 0);
1073	}
1074
1075	MODULE = Coro::State PACKAGE = Coro	1129	MODULE = Coro::State PACKAGE = Coro
1076		1130
1077	BOOT:	1131	BOOT:
1078	{	1132	{
1079	int i;	1133	int i;
…		…
1104		1158
1105	GCoroAPI = &coroapi;	1159	GCoroAPI = &coroapi;
1106	sv_setiv (sv, (IV)&coroapi);	1160	sv_setiv (sv, (IV)&coroapi);
1107	SvREADONLY_on (sv);	1161	SvREADONLY_on (sv);
1108	}	1162	}
		1163	}
		1164
		1165	int
		1166	prio (Coro::State coro, int newprio = 0)
		1167	ALIAS:
		1168	nice = 1
		1169	CODE:
		1170	{
		1171	RETVAL = coro->prio;
		1172
		1173	if (items > 1)
		1174	{
		1175	if (ix)
		1176	newprio += coro->prio;
		1177
		1178	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		1179	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		1180
		1181	coro->prio = newprio;
		1182	}
1109	}	1183	}
1110		1184
1111	void	1185	void
1112	ready (SV *self)	1186	ready (SV *self)
1113	PROTOTYPE: $	1187	PROTOTYPE: $
…		…
1120	CODE:	1194	CODE:
1121	RETVAL = coro_nready;	1195	RETVAL = coro_nready;
1122	OUTPUT:	1196	OUTPUT:
1123	RETVAL	1197	RETVAL
1124		1198
1125	void
1126	schedule (...)
1127	PROTOTYPE:
1128	CODE:
1129	api_schedule ();
1130
1131	void
1132	_set_cede_self ()
1133	CODE:
1134	coro_cede_self = 1;
1135
1136	void
1137	cede (...)
1138	PROTOTYPE:
1139	CODE:
1140	api_cede ();
1141
1142	MODULE = Coro::State PACKAGE = Coro::AIO	1199	MODULE = Coro::State PACKAGE = Coro::AIO
1143		1200
1144	SV *	1201	SV *
1145	_get_state ()	1202	_get_state ()
1146	CODE:	1203	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.90 by root, Sat Nov 25 00:56:35 2006 UTC vs. Revision 1.96 by root, Sun Nov 26 18:25:11 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.90 by root, Sat Nov 25 00:56:35 2006 UTC vs.
Revision 1.96 by root, Sun Nov 26 18:25:11 2006 UTC