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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.127 by root, Tue Dec 12 13:56:45 2006 UTC vs.
Revision 1.141 by root, Mon Jan 22 18:45:17 2007 UTC

…		…
33	# define BOOT_PAGESIZE (void)0	33	# define BOOT_PAGESIZE (void)0
34	#endif	34	#endif
35		35
36	#if USE_VALGRIND	36	#if USE_VALGRIND
37	# include <valgrind/valgrind.h>	37	# include <valgrind/valgrind.h>
		38	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
		39	#else
		40	# define REGISTER_STACK(cctx,start,end)
38	#endif	41	#endif
39		42
40	/* the maximum number of idle cctx that will be pooled */	43	/* the maximum number of idle cctx that will be pooled */
41	#define MAX_IDLE_CCTX 8	44	#define MAX_IDLE_CCTX 8
42		45
…		…
93		96
94	#define IN_DESTRUCT (PL_main_cv == Nullcv)	97	#define IN_DESTRUCT (PL_main_cv == Nullcv)
95		98
96	#if __GNUC__ >= 3	99	#if __GNUC__ >= 3
97	# define attribute(x) __attribute__(x)	100	# define attribute(x) __attribute__(x)
		101	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
98	#else	102	#else
99	# define attribute(x)	103	# define attribute(x)
		104	# define BARRIER
100	#endif	105	#endif
101		106
102	#define NOINLINE attribute ((noinline))	107	#define NOINLINE attribute ((noinline))
103		108
104	#include "CoroAPI.h"	109	#include "CoroAPI.h"
…		…
110	#else	115	#else
111	# define LOCK (void)0	116	# define LOCK (void)0
112	# define UNLOCK (void)0	117	# define UNLOCK (void)0
113	#endif	118	#endif
114		119
		120	/* helper storage struct for Coro::AIO */
115	struct io_state	121	struct io_state
116	{	122	{
117	int errorno;	123	int errorno;
118	I32 laststype;	124	I32 laststype;
119	int laststatval;	125	int laststatval;
…		…
132	typedef struct coro_cctx {	138	typedef struct coro_cctx {
133	struct coro_cctx *next;	139	struct coro_cctx *next;
134		140
135	/* the stack */	141	/* the stack */
136	void *sptr;	142	void *sptr;
137	long ssize; /* positive == mmap, otherwise malloc */	143	ssize_t ssize; /* positive == mmap, otherwise malloc */
138		144
139	/* cpu state */	145	/* cpu state */
140	void idle_sp; / sp of top-level transfer/schedule/cede call */	146	void idle_sp; / sp of top-level transfer/schedule/cede call */
		147	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
141	JMPENV *top_env;	148	JMPENV *top_env;
142	coro_context cctx;	149	coro_context cctx;
143		150
144	int inuse;	151	int inuse;
145		152
…		…
147	int valgrind_id;	154	int valgrind_id;
148	#endif	155	#endif
149	} coro_cctx;	156	} coro_cctx;
150		157
151	enum {	158	enum {
152	CF_RUNNING = 0x0001, /* coroutine is running */	159	CF_RUNNING = 0x0001, /* coroutine is running */
153	CF_READY = 0x0002, /* coroutine is ready */	160	CF_READY = 0x0002, /* coroutine is ready */
154	CF_NEW = 0x0004, /* ahs never been switched to */	161	CF_NEW = 0x0004, /* has never been switched to */
		162	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
155	};	163	};
156		164
157	/* this is a structure representing a perl-level coroutine */	165	/* this is a structure representing a perl-level coroutine */
158	struct coro {	166	struct coro {
159	/* the c coroutine allocated to this perl coroutine, if any */	167	/* the c coroutine allocated to this perl coroutine, if any */
…		…
180	int prio;	188	int prio;
181	};	189	};
182		190
183	typedef struct coro *Coro__State;	191	typedef struct coro *Coro__State;
184	typedef struct coro *Coro__State_or_hashref;	192	typedef struct coro *Coro__State_or_hashref;
		193
		194	/ Coro ******************************************************************/
		195
		196	#define PRIO_MAX 3
		197	#define PRIO_HIGH 1
		198	#define PRIO_NORMAL 0
		199	#define PRIO_LOW -1
		200	#define PRIO_IDLE -3
		201	#define PRIO_MIN -4
		202
		203	/* for Coro.pm */
		204	static SV *coro_current;
		205	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
		206	static int coro_nready;
		207
		208	/ lowlevel stuff ********************************************************/
185		209
186	static AV *	210	static AV *
187	coro_clone_padlist (CV *cv)	211	coro_clone_padlist (CV *cv)
188	{	212	{
189	AV *padlist = CvPADLIST (cv);	213	AV *padlist = CvPADLIST (cv);
…		…
298	av_extend (av, AvMAX (av) + 1);	322	av_extend (av, AvMAX (av) + 1);
299		323
300	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	324	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
301	}	325	}
302		326
		327	/ load & save, init *****************************************************/
		328
303	#define SB do {	329	#define SB do {
304	#define SE } while (0)	330	#define SE } while (0)
305		331
306	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	332	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
307		333
…		…
468		494
469	/* free all temporaries */	495	/* free all temporaries */
470	FREETMPS;	496	FREETMPS;
471	assert (PL_tmps_ix == -1);	497	assert (PL_tmps_ix == -1);
472		498
		499	/* unwind all extra stacks */
473	POPSTACK_TO (PL_mainstack);	500	POPSTACK_TO (PL_mainstack);
		501
		502	/* unwind main stack */
		503	dounwind (-1);
474	}	504	}
475		505
476	while (PL_curstackinfo->si_next)	506	while (PL_curstackinfo->si_next)
477	PL_curstackinfo = PL_curstackinfo->si_next;	507	PL_curstackinfo = PL_curstackinfo->si_next;
478		508
…		…
494	Safefree (PL_savestack);	524	Safefree (PL_savestack);
495	#if !PERL_VERSION_ATLEAST (5,9,0)	525	#if !PERL_VERSION_ATLEAST (5,9,0)
496	Safefree (PL_retstack);	526	Safefree (PL_retstack);
497	#endif	527	#endif
498	}	528	}
		529
		530	/ coroutine stack handling **********************************************/
499		531
500	static void	532	static void
501	setup_coro (struct coro *coro)	533	setup_coro (struct coro *coro)
502	{	534	{
503	/*	535	/*
…		…
601		633
602	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	634	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
603	/* mmap supposedly does allocate-on-write for us */	635	/* mmap supposedly does allocate-on-write for us */
604	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	636	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
605		637
606	if (cctx->sptr == (void *)-1)	638	if (cctx->sptr != (void *)-1)
607	{
608	perror ("FATAL: unable to mmap stack for coroutine");
609	_exit (EXIT_FAILURE);
610	}	639	{
611
612	# if STACKGUARD	640	# if STACKGUARD
613	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	641	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
614	# endif	642	# endif
615		643	REGISTER_STACK (
616	#else	644	cctx,
617
618	cctx->ssize = STACKSIZE * (long)sizeof (long);
619	New (0, cctx->sptr, STACKSIZE, long);
620
621	if (!cctx->sptr)
622	{
623	perror ("FATAL: unable to malloc stack for coroutine");
624	_exit (EXIT_FAILURE);
625	}
626
627	#endif
628
629	#if USE_VALGRIND
630	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
631	STACKGUARD * PAGESIZE + (char *)cctx->sptr,	645	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
632	cctx->ssize + (char *)cctx->sptr	646	cctx->ssize + (char *)cctx->sptr
633	);	647	);
634	#endif
635		648
636	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);	649	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
		650	}
		651	else
		652	#endif
		653	{
		654	cctx->ssize = -STACKSIZE * (long)sizeof (long);
		655	New (0, cctx->sptr, STACKSIZE, long);
		656
		657	if (!cctx->sptr)
		658	{
		659	perror ("FATAL: unable to allocate stack for coroutine");
		660	_exit (EXIT_FAILURE);
		661	}
		662
		663	REGISTER_STACK (
		664	cctx,
		665	(char *)cctx->sptr,
		666	(char *)cctx->sptr - cctx->ssize
		667	);
		668
		669	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, -cctx->ssize);
		670	}
637		671
638	return cctx;	672	return cctx;
639	}	673	}
640		674
641	static void	675	static void
…		…
649	#if USE_VALGRIND	683	#if USE_VALGRIND
650	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	684	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
651	#endif	685	#endif
652		686
653	#if HAVE_MMAP	687	#if HAVE_MMAP
		688	if (cctx->ssize > 0)
654	munmap (cctx->sptr, cctx->ssize);	689	munmap (cctx->sptr, cctx->ssize);
655	#else	690	else
		691	#endif
656	Safefree (cctx->sptr);	692	Safefree (cctx->sptr);
657	#endif
658		693
659	Safefree (cctx);	694	Safefree (cctx);
660	}	695	}
661		696
662	static coro_cctx *	697	static coro_cctx *
…		…
696	++cctx_idle;	731	++cctx_idle;
697	cctx->next = cctx_first;	732	cctx->next = cctx_first;
698	cctx_first = cctx;	733	cctx_first = cctx;
699	}	734	}
700		735
		736	/ coroutine switching ***************************************************/
		737
701	/* never call directly, always through the coro_state_transfer global variable */	738	/* never call directly, always through the coro_state_transfer global variable */
702	static void NOINLINE	739	static void NOINLINE
703	transfer (struct coro prev, struct coro next)	740	transfer (struct coro prev, struct coro next)
704	{	741	{
705	dSTACKLEVEL;	742	dSTACKLEVEL;
706		743
707	/* sometimes transfer is only called to set idle_sp */	744	/* sometimes transfer is only called to set idle_sp */
708	if (!next)	745	if (!next)
709	{	746	{
710	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	747	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
711	assert (((coro_cctx )prev)->top_env = PL_top_env); / just for the side effetc when assert is enabled */	748	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
712	}	749	}
713	else if (prev != next)	750	else if (prev != next)
714	{	751	{
715	coro_cctx *prev__cctx;	752	coro_cctx *prev__cctx;
716		753
…		…
727	if (!prev->flags & CF_RUNNING)	764	if (!prev->flags & CF_RUNNING)
728	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");	765	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
729		766
730	if (next->flags & CF_RUNNING)	767	if (next->flags & CF_RUNNING)
731	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	768	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		769
		770	if (next->flags & CF_DESTROYED)
		771	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
732		772
733	prev->flags &= ~CF_RUNNING;	773	prev->flags &= ~CF_RUNNING;
734	next->flags \|= CF_RUNNING;	774	next->flags \|= CF_RUNNING;
735		775
736	LOCK;	776	LOCK;
…		…
757		797
758	/* possibly "free" the cctx */	798	/* possibly "free" the cctx */
759	if (prev__cctx->idle_sp == STACKLEVEL)	799	if (prev__cctx->idle_sp == STACKLEVEL)
760	{	800	{
761	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	801	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
762	assert (PL_top_env == prev__cctx->top_env);	802	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
763		803
764	prev->cctx = 0;	804	prev->cctx = 0;
765		805
766	cctx_put (prev__cctx);	806	cctx_put (prev__cctx);
767	prev__cctx->inuse = 0;	807	prev__cctx->inuse = 0;
…		…
780	PL_top_env = next->cctx->top_env;	820	PL_top_env = next->cctx->top_env;
781	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	821	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
782	}	822	}
783		823
784	free_coro_mortal ();	824	free_coro_mortal ();
785
786	UNLOCK;	825	UNLOCK;
787	}	826	}
788	}	827	}
789		828
790	struct transfer_args	829	struct transfer_args
…		…
792	struct coro prev, next;	831	struct coro prev, next;
793	};	832	};
794		833
795	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	834	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
796		835
		836	/ high level stuff ******************************************************/
		837
797	static void	838	static int
798	coro_state_destroy (struct coro *coro)	839	coro_state_destroy (struct coro *coro)
799	{	840	{
800	if (coro->refcnt--)	841	if (coro->flags & CF_DESTROYED)
801	return;	842	return 0;
		843
		844	coro->flags \|= CF_DESTROYED;
		845
		846	if (coro->flags & CF_READY)
		847	{
		848	/* reduce nready, as destroying a ready coro effectively unreadies it */
		849	/* alternative: look through all ready queues and remove the coro */
		850	LOCK;
		851	--coro_nready;
		852	UNLOCK;
		853	}
		854	else
		855	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
802		856
803	if (coro->mainstack && coro->mainstack != main_mainstack)	857	if (coro->mainstack && coro->mainstack != main_mainstack)
804	{	858	{
805	struct coro temp;	859	struct coro temp;
		860
		861	assert (!(coro->flags & CF_RUNNING));
		862
806	Zero (&temp, 1, struct coro);	863	Zero (&temp, 1, struct coro);
807	temp.save = CORO_SAVE_ALL;	864	temp.save = CORO_SAVE_ALL;
808		865
809	if (coro->flags & CF_RUNNING)	866	if (coro->flags & CF_RUNNING)
810	croak ("FATAL: tried to destroy currently running coroutine");	867	croak ("FATAL: tried to destroy currently running coroutine");
…		…
819	coro->mainstack = 0;	876	coro->mainstack = 0;
820	}	877	}
821		878
822	cctx_destroy (coro->cctx);	879	cctx_destroy (coro->cctx);
823	SvREFCNT_dec (coro->args);	880	SvREFCNT_dec (coro->args);
824	Safefree (coro);	881
		882	return 1;
825	}	883	}
826		884
827	static int	885	static int
828	coro_state_clear (pTHX_ SV sv, MAGIC mg)	886	coro_state_free (pTHX_ SV sv, MAGIC mg)
829	{	887	{
830	struct coro coro = (struct coro )mg->mg_ptr;	888	struct coro coro = (struct coro )mg->mg_ptr;
831	mg->mg_ptr = 0;	889	mg->mg_ptr = 0;
832		890
		891	if (--coro->refcnt < 0)
		892	{
833	coro_state_destroy (coro);	893	coro_state_destroy (coro);
		894	Safefree (coro);
		895	}
834		896
835	return 0;	897	return 0;
836	}	898	}
837		899
838	static int	900	static int
…		…
845	return 0;	907	return 0;
846	}	908	}
847		909
848	static MGVTBL coro_state_vtbl = {	910	static MGVTBL coro_state_vtbl = {
849	0, 0, 0, 0,	911	0, 0, 0, 0,
850	coro_state_clear,	912	coro_state_free,
851	0,	913	0,
852	#ifdef MGf_DUP	914	#ifdef MGf_DUP
853	coro_state_dup,	915	coro_state_dup,
854	#else	916	#else
855	# define MGf_DUP 0	917	# define MGf_DUP 0
…		…
906	return old_save;	968	return old_save;
907	}	969	}
908		970
909	/ Coro ******************************************************************/	971	/ Coro ******************************************************************/
910		972
911	#define PRIO_MAX 3
912	#define PRIO_HIGH 1
913	#define PRIO_NORMAL 0
914	#define PRIO_LOW -1
915	#define PRIO_IDLE -3
916	#define PRIO_MIN -4
917
918	/* for Coro.pm */
919	static SV *coro_current;
920	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
921	static int coro_nready;
922
923	static void	973	static void
924	coro_enq (SV *coro_sv)	974	coro_enq (SV *coro_sv)
925	{	975	{
926	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	976	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
927	coro_nready++;
928	}	977	}
929		978
930	static SV *	979	static SV *
931	coro_deq (int min_prio)	980	coro_deq (int min_prio)
932	{	981	{
…		…
936	if (min_prio < 0)	985	if (min_prio < 0)
937	min_prio = 0;	986	min_prio = 0;
938		987
939	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	988	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
940	if (AvFILLp (coro_ready [prio]) >= 0)	989	if (AvFILLp (coro_ready [prio]) >= 0)
941	{
942	coro_nready--;
943	return av_shift (coro_ready [prio]);	990	return av_shift (coro_ready [prio]);
944	}
945		991
946	return 0;	992	return 0;
947	}	993	}
948		994
949	static int	995	static int
…		…
957	coro = SvSTATE (coro_sv);	1003	coro = SvSTATE (coro_sv);
958		1004
959	if (coro->flags & CF_READY)	1005	if (coro->flags & CF_READY)
960	return 0;	1006	return 0;
961		1007
962	#if 0 /* this is actually harmless */
963	if (coro->flags & CF_RUNNING)
964	croak ("Coro::ready called on currently running coroutine");
965	#endif
966
967	coro->flags \|= CF_READY;	1008	coro->flags \|= CF_READY;
968		1009
969	LOCK;	1010	LOCK;
970	coro_enq (SvREFCNT_inc (coro_sv));	1011	coro_enq (SvREFCNT_inc (coro_sv));
		1012	++coro_nready;
971	UNLOCK;	1013	UNLOCK;
972		1014
973	return 1;	1015	return 1;
974	}	1016	}
975		1017
976	static int	1018	static int
977	api_is_ready (SV *coro_sv)	1019	api_is_ready (SV *coro_sv)
978	{	1020	{
979	return !!SvSTATE (coro_sv)->flags & CF_READY;	1021	return !!(SvSTATE (coro_sv)->flags & CF_READY);
980	}	1022	}
981		1023
982	static void	1024	static void
983	prepare_schedule (struct transfer_args *ta)	1025	prepare_schedule (struct transfer_args *ta)
984	{	1026	{
985	SV prev, next;	1027	SV prev_sv, next_sv;
986		1028
987	for (;;)	1029	for (;;)
988	{	1030	{
989	LOCK;	1031	LOCK;
990	next = coro_deq (PRIO_MIN);	1032	next_sv = coro_deq (PRIO_MIN);
		1033
		1034	/* nothing to schedule: call the idle handler */
		1035	if (!next_sv)
		1036	{
		1037	dSP;
		1038	UNLOCK;
		1039
		1040	ENTER;
		1041	SAVETMPS;
		1042
		1043	PUSHMARK (SP);
		1044	PUTBACK;
		1045	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1046
		1047	FREETMPS;
		1048	LEAVE;
		1049	continue;
		1050	}
		1051
		1052	ta->next = SvSTATE (next_sv);
		1053
		1054	/* cannot transfer to destroyed coros, skip and look for next */
		1055	if (ta->next->flags & CF_DESTROYED)
		1056	{
		1057	UNLOCK;
		1058	SvREFCNT_dec (next_sv);
		1059	/* coro_nready is already taken care of by destroy */
		1060	continue;
		1061	}
		1062
		1063	--coro_nready;
991	UNLOCK;	1064	UNLOCK;
992
993	if (next)
994	break;	1065	break;
995
996	{
997	dSP;
998
999	ENTER;
1000	SAVETMPS;
1001
1002	PUSHMARK (SP);
1003	PUTBACK;
1004	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1005
1006	FREETMPS;
1007	LEAVE;
1008	}	1066	}
1009	}
1010
1011	prev = SvRV (coro_current);
1012	SvRV_set (coro_current, next);
1013		1067
1014	/* free this only after the transfer */	1068	/* free this only after the transfer */
		1069	prev_sv = SvRV (coro_current);
		1070	SvRV_set (coro_current, next_sv);
		1071	ta->prev = SvSTATE (prev_sv);
		1072
		1073	assert (ta->next->flags & CF_READY);
		1074	ta->next->flags &= ~CF_READY;
		1075
1015	LOCK;	1076	LOCK;
1016	free_coro_mortal ();	1077	free_coro_mortal ();
		1078	coro_mortal = prev_sv;
1017	UNLOCK;	1079	UNLOCK;
1018	coro_mortal = prev;
1019
1020	assert (!SvROK(prev));//D
1021	assert (!SvROK(next));//D
1022
1023	ta->prev = SvSTATE (prev);
1024	ta->next = SvSTATE (next);
1025
1026	assert (ta->next->flags & CF_READY);
1027	ta->next->flags &= ~CF_READY;
1028	}	1080	}
1029		1081
1030	static void	1082	static void
1031	prepare_cede (struct transfer_args *ta)	1083	prepare_cede (struct transfer_args *ta)
1032	{	1084	{
1033	api_ready (coro_current);	1085	api_ready (coro_current);
1034
1035	prepare_schedule (ta);	1086	prepare_schedule (ta);
		1087	}
		1088
		1089	static int
		1090	prepare_cede_notself (struct transfer_args *ta)
		1091	{
		1092	if (coro_nready)
		1093	{
		1094	SV *prev = SvRV (coro_current);
		1095	prepare_schedule (ta);
		1096	api_ready (prev);
		1097	return 1;
		1098	}
		1099	else
		1100	return 0;
1036	}	1101	}
1037		1102
1038	static void	1103	static void
1039	api_schedule (void)	1104	api_schedule (void)
1040	{	1105	{
…		…
1042		1107
1043	prepare_schedule (&ta);	1108	prepare_schedule (&ta);
1044	TRANSFER (ta);	1109	TRANSFER (ta);
1045	}	1110	}
1046		1111
1047	static void	1112	static int
1048	api_cede (void)	1113	api_cede (void)
1049	{	1114	{
1050	struct transfer_args ta;	1115	struct transfer_args ta;
1051		1116
1052	prepare_cede (&ta);	1117	prepare_cede (&ta);
		1118
		1119	if (ta.prev != ta.next)
		1120	{
1053	TRANSFER (ta);	1121	TRANSFER (ta);
		1122	return 1;
		1123	}
		1124	else
		1125	return 0;
		1126	}
		1127
		1128	static int
		1129	api_cede_notself (void)
		1130	{
		1131	struct transfer_args ta;
		1132
		1133	if (prepare_cede_notself (&ta))
		1134	{
		1135	TRANSFER (ta);
		1136	return 1;
		1137	}
		1138	else
		1139	return 0;
1054	}	1140	}
1055		1141
1056	MODULE = Coro::State PACKAGE = Coro::State	1142	MODULE = Coro::State PACKAGE = Coro::State
1057		1143
1058	PROTOTYPES: DISABLE	1144	PROTOTYPES: DISABLE
…		…
1114	_set_stacklevel (...)	1200	_set_stacklevel (...)
1115	ALIAS:	1201	ALIAS:
1116	Coro::State::transfer = 1	1202	Coro::State::transfer = 1
1117	Coro::schedule = 2	1203	Coro::schedule = 2
1118	Coro::cede = 3	1204	Coro::cede = 3
		1205	Coro::cede_notself = 4
1119	CODE:	1206	CODE:
1120	{	1207	{
1121	struct transfer_args ta;	1208	struct transfer_args ta;
1122		1209
1123	switch (ix)	1210	switch (ix)
…		…
1139	break;	1226	break;
1140		1227
1141	case 3:	1228	case 3:
1142	prepare_cede (&ta);	1229	prepare_cede (&ta);
1143	break;	1230	break;
		1231
		1232	case 4:
		1233	if (!prepare_cede_notself (&ta))
		1234	XSRETURN_EMPTY;
		1235
		1236	break;
1144	}	1237	}
1145		1238
		1239	BARRIER;
1146	TRANSFER (ta);	1240	TRANSFER (ta);
1147	}
1148		1241
1149	void	1242	if (GIMME_V != G_VOID && ta.next != ta.prev)
1150	_clone_state_from (SV dst, SV src)	1243	XSRETURN_YES;
		1244	}
		1245
		1246	bool
		1247	_destroy (SV *coro_sv)
1151	CODE:	1248	CODE:
1152	{	1249	RETVAL = coro_state_destroy (SvSTATE (coro_sv));
1153	struct coro *coro_src = SvSTATE (src);	1250	OUTPUT:
1154		1251	RETVAL
1155	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1156
1157	++coro_src->refcnt;
1158	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1159	}
1160		1252
1161	void	1253	void
1162	_exit (code)	1254	_exit (code)
1163	int code	1255	int code
1164	PROTOTYPE: $	1256	PROTOTYPE: $
…		…
1201	coro_ready[i] = newAV ();	1293	coro_ready[i] = newAV ();
1202		1294
1203	{	1295	{
1204	SV *sv = perl_get_sv("Coro::API", 1);	1296	SV *sv = perl_get_sv("Coro::API", 1);
1205		1297
1206	coroapi.schedule = api_schedule;	1298	coroapi.schedule = api_schedule;
1207	coroapi.save = api_save;	1299	coroapi.save = api_save;
1208	coroapi.cede = api_cede;	1300	coroapi.cede = api_cede;
		1301	coroapi.cede_notself = api_cede_notself;
1209	coroapi.ready = api_ready;	1302	coroapi.ready = api_ready;
1210	coroapi.is_ready = api_is_ready;	1303	coroapi.is_ready = api_is_ready;
1211	coroapi.nready = &coro_nready;	1304	coroapi.nready = &coro_nready;
1212	coroapi.current = coro_current;	1305	coroapi.current = coro_current;
1213		1306
1214	GCoroAPI = &coroapi;	1307	GCoroAPI = &coroapi;
1215	sv_setiv (sv, (IV)&coroapi);	1308	sv_setiv (sv, (IV)&coroapi);
1216	SvREADONLY_on (sv);	1309	SvREADONLY_on (sv);
1217	}	1310	}
…		…
1233	RETVAL = coro->prio;	1326	RETVAL = coro->prio;
1234		1327
1235	if (items > 1)	1328	if (items > 1)
1236	{	1329	{
1237	if (ix)	1330	if (ix)
1238	newprio += coro->prio;	1331	newprio = coro->prio - newprio;
1239		1332
1240	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1333	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
1241	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1334	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
1242		1335
1243	coro->prio = newprio;	1336	coro->prio = newprio;
1244	}	1337	}
1245	}	1338	}
		1339	OUTPUT:
		1340	RETVAL
1246		1341
1247	SV *	1342	SV *
1248	ready (SV *self)	1343	ready (SV *self)
1249	PROTOTYPE: $	1344	PROTOTYPE: $
1250	CODE:	1345	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.127 by root, Tue Dec 12 13:56:45 2006 UTC vs. Revision 1.141 by root, Mon Jan 22 18:45:17 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.127 by root, Tue Dec 12 13:56:45 2006 UTC vs.
Revision 1.141 by root, Mon Jan 22 18:45:17 2007 UTC