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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.126 by root, Tue Dec 12 04:19:56 2006 UTC vs.
Revision 1.139 by root, Sun Jan 14 21:13:41 2007 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 USE_VALGRIND
10	# include <valgrind/valgrind.h>
11	#endif
12
13	/* the maximum number of idle cctx that will be pooled */
14	#define MAX_IDLE_CCTX 8
15
16	#define PERL_VERSION_ATLEAST(a,b,c) \
17	(PERL_REVISION > (a) \
18	\|\| (PERL_REVISION == (a) \
19	&& (PERL_VERSION > (b) \
20	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
21
22	#if !PERL_VERSION_ATLEAST (5,6,0)
23	# ifndef PL_ppaddr
24	# define PL_ppaddr ppaddr
25	# endif
26	# ifndef call_sv
27	# define call_sv perl_call_sv
28	# endif
29	# ifndef get_sv
30	# define get_sv perl_get_sv
31	# endif
32	# ifndef get_cv
33	# define get_cv perl_get_cv
34	# endif
35	# ifndef IS_PADGV
36	# define IS_PADGV(v) 0
37	# endif
38	# ifndef IS_PADCONST
39	# define IS_PADCONST(v) 0
40	# endif
41	#endif
42
43	/* 5.8.7 */
44	#ifndef SvRV_set
45	# define SvRV_set(s,v) SvRV(s) = (v)
46	#endif
47
48	#include <stdio.h>	9	#include <stdio.h>
49	#include <errno.h>	10	#include <errno.h>
50	#include <assert.h>	11	#include <assert.h>
51
52	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
53	# undef STACKGUARD
54	#endif
55
56	#ifndef STACKGUARD
57	# define STACKGUARD 0
58	#endif
59		12
60	#ifdef HAVE_MMAP	13	#ifdef HAVE_MMAP
61	# include <unistd.h>	14	# include <unistd.h>
62	# include <sys/mman.h>	15	# include <sys/mman.h>
63	# ifndef MAP_ANONYMOUS	16	# ifndef MAP_ANONYMOUS
…		…
78	#else	31	#else
79	# define PAGESIZE 0	32	# define PAGESIZE 0
80	# define BOOT_PAGESIZE (void)0	33	# define BOOT_PAGESIZE (void)0
81	#endif	34	#endif
82		35
		36	#if USE_VALGRIND
		37	# include <valgrind/valgrind.h>
		38	#endif
		39
		40	/* the maximum number of idle cctx that will be pooled */
		41	#define MAX_IDLE_CCTX 8
		42
		43	#define PERL_VERSION_ATLEAST(a,b,c) \
		44	(PERL_REVISION > (a) \
		45	\|\| (PERL_REVISION == (a) \
		46	&& (PERL_VERSION > (b) \
		47	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
		48
		49	#if !PERL_VERSION_ATLEAST (5,6,0)
		50	# ifndef PL_ppaddr
		51	# define PL_ppaddr ppaddr
		52	# endif
		53	# ifndef call_sv
		54	# define call_sv perl_call_sv
		55	# endif
		56	# ifndef get_sv
		57	# define get_sv perl_get_sv
		58	# endif
		59	# ifndef get_cv
		60	# define get_cv perl_get_cv
		61	# endif
		62	# ifndef IS_PADGV
		63	# define IS_PADGV(v) 0
		64	# endif
		65	# ifndef IS_PADCONST
		66	# define IS_PADCONST(v) 0
		67	# endif
		68	#endif
		69
		70	/* 5.8.7 */
		71	#ifndef SvRV_set
		72	# define SvRV_set(s,v) SvRV(s) = (v)
		73	#endif
		74
		75	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
		76	# undef STACKGUARD
		77	#endif
		78
		79	#ifndef STACKGUARD
		80	# define STACKGUARD 0
		81	#endif
		82
		83	/* prefer perl internal functions over our own? */
		84	#ifndef PREFER_PERL_FUNCTIONS
		85	# define PREFER_PERL_FUNCTIONS 0
		86	#endif
		87
83	/* The next macro should declare a variable stacklevel that contains and approximation	88	/* The next macro should declare a variable stacklevel that contains and approximation
84	* to the current C stack pointer. Its property is that it changes with each call	89	* to the current C stack pointer. Its property is that it changes with each call
85	* and should be unique. */	90	* and should be unique. */
86	#define dSTACKLEVEL int stacklevel	91	#define dSTACKLEVEL int stacklevel
87	#define STACKLEVEL ((void *)&stacklevel)	92	#define STACKLEVEL ((void *)&stacklevel)
88		93
89	#define IN_DESTRUCT (PL_main_cv == Nullcv)	94	#define IN_DESTRUCT (PL_main_cv == Nullcv)
90		95
91	#if __GNUC__ >= 3	96	#if __GNUC__ >= 3
92	# define attribute(x) __attribute__(x)	97	# define attribute(x) __attribute__(x)
		98	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
93	#else	99	#else
94	# define attribute(x)	100	# define attribute(x)
		101	# define BARRIER
95	#endif	102	#endif
96		103
97	#define NOINLINE attribute ((noinline))	104	#define NOINLINE attribute ((noinline))
98		105
99	#include "CoroAPI.h"	106	#include "CoroAPI.h"
…		…
105	#else	112	#else
106	# define LOCK (void)0	113	# define LOCK (void)0
107	# define UNLOCK (void)0	114	# define UNLOCK (void)0
108	#endif	115	#endif
109		116
		117	/* helper storage struct for Coro::AIO */
110	struct io_state	118	struct io_state
111	{	119	{
112	int errorno;	120	int errorno;
113	I32 laststype;	121	I32 laststype;
114	int laststatval;	122	int laststatval;
…		…
130	/* the stack */	138	/* the stack */
131	void *sptr;	139	void *sptr;
132	long ssize; /* positive == mmap, otherwise malloc */	140	long ssize; /* positive == mmap, otherwise malloc */
133		141
134	/* cpu state */	142	/* cpu state */
135	void idle_sp; / sp of top-level transfer/schedule/cede call */	143	void idle_sp; / sp of top-level transfer/schedule/cede call */
		144	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
136	JMPENV *top_env;	145	JMPENV *top_env;
137	coro_context cctx;	146	coro_context cctx;
138		147
139	int inuse;	148	int inuse;
140		149
…		…
142	int valgrind_id;	151	int valgrind_id;
143	#endif	152	#endif
144	} coro_cctx;	153	} coro_cctx;
145		154
146	enum {	155	enum {
147	CF_RUNNING = 0x0001, /* coroutine is running */	156	CF_RUNNING = 0x0001, /* coroutine is running */
148	CF_READY = 0x0002, /* coroutine is ready */	157	CF_READY = 0x0002, /* coroutine is ready */
149	CF_NEW = 0x0004, /* ahs never been switched to */	158	CF_NEW = 0x0004, /* has never been switched to */
		159	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
150	};	160	};
151		161
152	/* this is a structure representing a perl-level coroutine */	162	/* this is a structure representing a perl-level coroutine */
153	struct coro {	163	struct coro {
154	/* the c coroutine allocated to this perl coroutine, if any */	164	/* the c coroutine allocated to this perl coroutine, if any */
…		…
176	};	186	};
177		187
178	typedef struct coro *Coro__State;	188	typedef struct coro *Coro__State;
179	typedef struct coro *Coro__State_or_hashref;	189	typedef struct coro *Coro__State_or_hashref;
180		190
		191	/ Coro ******************************************************************/
		192
		193	#define PRIO_MAX 3
		194	#define PRIO_HIGH 1
		195	#define PRIO_NORMAL 0
		196	#define PRIO_LOW -1
		197	#define PRIO_IDLE -3
		198	#define PRIO_MIN -4
		199
		200	/* for Coro.pm */
		201	static SV *coro_current;
		202	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
		203	static int coro_nready;
		204
		205	/ lowlevel stuff ********************************************************/
		206
181	static AV *	207	static AV *
182	coro_clone_padlist (CV *cv)	208	coro_clone_padlist (CV *cv)
183	{	209	{
184	AV *padlist = CvPADLIST (cv);	210	AV *padlist = CvPADLIST (cv);
185	AV newpadlist, newpad;	211	AV newpadlist, newpad;
…		…
259		285
260	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	286	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
261	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	287	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
262	else	288	else
263	{	289	{
264	#if 0	290	#if PREFER_PERL_FUNCTIONS
265	/* this is probably cleaner, but also slower? */	291	/* this is probably cleaner, but also slower? */
266	CV *cp = Perl_cv_clone (cv);	292	CV *cp = Perl_cv_clone (cv);
267	CvPADLIST (cv) = CvPADLIST (cp);	293	CvPADLIST (cv) = CvPADLIST (cp);
268	CvPADLIST (cp) = 0;	294	CvPADLIST (cp) = 0;
269	SvREFCNT_dec (cp);	295	SvREFCNT_dec (cp);
…		…
292	if (AvFILLp (av) >= AvMAX (av))	318	if (AvFILLp (av) >= AvMAX (av))
293	av_extend (av, AvMAX (av) + 1);	319	av_extend (av, AvMAX (av) + 1);
294		320
295	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	321	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
296	}	322	}
		323
		324	/ load & save, init *****************************************************/
297		325
298	#define SB do {	326	#define SB do {
299	#define SE } while (0)	327	#define SE } while (0)
300		328
301	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	329	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
…		…
403	* allocate various perl stacks. This is an exact copy	431	* allocate various perl stacks. This is an exact copy
404	* of perl.c:init_stacks, except that it uses less memory	432	* of perl.c:init_stacks, except that it uses less memory
405	* on the (sometimes correct) assumption that coroutines do	433	* on the (sometimes correct) assumption that coroutines do
406	* not usually need a lot of stackspace.	434	* not usually need a lot of stackspace.
407	*/	435	*/
408	#if USE_PERL_INIT_STACKS	436	#if PREFER_PERL_FUNCTIONS
409	# define coro_init_stacks init_stacks	437	# define coro_init_stacks init_stacks
410	#else	438	#else
411
412	static void	439	static void
413	coro_init_stacks ()	440	coro_init_stacks ()
414	{	441	{
415	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	442	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
416	PL_curstackinfo->si_type = PERLSI_MAIN;	443	PL_curstackinfo->si_type = PERLSI_MAIN;
…		…
446	New(54,PL_retstack,16,OP*);	473	New(54,PL_retstack,16,OP*);
447	PL_retstack_ix = 0;	474	PL_retstack_ix = 0;
448	PL_retstack_max = 16;	475	PL_retstack_max = 16;
449	#endif	476	#endif
450	}	477	}
		478	#endif
451		479
452	/*	480	/*
453	* destroy the stacks, the callchain etc...	481	* destroy the stacks, the callchain etc...
454	*/	482	*/
455	static void	483	static void
…		…
463		491
464	/* free all temporaries */	492	/* free all temporaries */
465	FREETMPS;	493	FREETMPS;
466	assert (PL_tmps_ix == -1);	494	assert (PL_tmps_ix == -1);
467		495
		496	/* unwind all extra stacks */
468	POPSTACK_TO (PL_mainstack);	497	POPSTACK_TO (PL_mainstack);
		498
		499	/* unwind main stack */
		500	dounwind (-1);
469	}	501	}
470		502
471	while (PL_curstackinfo->si_next)	503	while (PL_curstackinfo->si_next)
472	PL_curstackinfo = PL_curstackinfo->si_next;	504	PL_curstackinfo = PL_curstackinfo->si_next;
473		505
…		…
489	Safefree (PL_savestack);	521	Safefree (PL_savestack);
490	#if !PERL_VERSION_ATLEAST (5,9,0)	522	#if !PERL_VERSION_ATLEAST (5,9,0)
491	Safefree (PL_retstack);	523	Safefree (PL_retstack);
492	#endif	524	#endif
493	}	525	}
494	#endif	526
		527	/ coroutine stack handling **********************************************/
495		528
496	static void	529	static void
497	setup_coro (struct coro *coro)	530	setup_coro (struct coro *coro)
498	{	531	{
499	/*	532	/*
…		…
692	++cctx_idle;	725	++cctx_idle;
693	cctx->next = cctx_first;	726	cctx->next = cctx_first;
694	cctx_first = cctx;	727	cctx_first = cctx;
695	}	728	}
696		729
		730	/ coroutine switching ***************************************************/
		731
697	/* never call directly, always through the coro_state_transfer global variable */	732	/* never call directly, always through the coro_state_transfer global variable */
698	static void NOINLINE	733	static void NOINLINE
699	transfer (struct coro prev, struct coro next)	734	transfer (struct coro prev, struct coro next)
700	{	735	{
701	dSTACKLEVEL;	736	dSTACKLEVEL;
702		737
703	/* sometimes transfer is only called to set idle_sp */	738	/* sometimes transfer is only called to set idle_sp */
704	if (!next)	739	if (!next)
705	{	740	{
706	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	741	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
707	assert (((coro_cctx )prev)->top_env = PL_top_env); / just for the side effetc when assert is enabled */	742	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
708	}	743	}
709	else if (prev != next)	744	else if (prev != next)
710	{	745	{
711	coro_cctx *prev__cctx;	746	coro_cctx *prev__cctx;
712		747
…		…
723	if (!prev->flags & CF_RUNNING)	758	if (!prev->flags & CF_RUNNING)
724	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");	759	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
725		760
726	if (next->flags & CF_RUNNING)	761	if (next->flags & CF_RUNNING)
727	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	762	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		763
		764	if (next->flags & CF_DESTROYED)
		765	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
728		766
729	prev->flags &= ~CF_RUNNING;	767	prev->flags &= ~CF_RUNNING;
730	next->flags \|= CF_RUNNING;	768	next->flags \|= CF_RUNNING;
731		769
732	LOCK;	770	LOCK;
…		…
753		791
754	/* possibly "free" the cctx */	792	/* possibly "free" the cctx */
755	if (prev__cctx->idle_sp == STACKLEVEL)	793	if (prev__cctx->idle_sp == STACKLEVEL)
756	{	794	{
757	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	795	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
758	assert (PL_top_env == prev__cctx->top_env);	796	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
759		797
760	prev->cctx = 0;	798	prev->cctx = 0;
761		799
762	cctx_put (prev__cctx);	800	cctx_put (prev__cctx);
763	prev__cctx->inuse = 0;	801	prev__cctx->inuse = 0;
…		…
776	PL_top_env = next->cctx->top_env;	814	PL_top_env = next->cctx->top_env;
777	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	815	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
778	}	816	}
779		817
780	free_coro_mortal ();	818	free_coro_mortal ();
781
782	UNLOCK;	819	UNLOCK;
783	}	820	}
784	}	821	}
785		822
786	struct transfer_args	823	struct transfer_args
…		…
788	struct coro prev, next;	825	struct coro prev, next;
789	};	826	};
790		827
791	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	828	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
792		829
		830	/ high level stuff ******************************************************/
		831
793	static void	832	static int
794	coro_state_destroy (struct coro *coro)	833	coro_state_destroy (struct coro *coro)
795	{	834	{
796	if (coro->refcnt--)	835	if (coro->flags & CF_DESTROYED)
797	return;	836	return 0;
		837
		838	coro->flags \|= CF_DESTROYED;
		839
		840	if (coro->flags & CF_READY)
		841	{
		842	/* reduce nready, as destroying a ready coro effectively unreadies it */
		843	/* alternative: look through all ready queues and remove the coro */
		844	LOCK;
		845	--coro_nready;
		846	UNLOCK;
		847	}
		848	else
		849	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
798		850
799	if (coro->mainstack && coro->mainstack != main_mainstack)	851	if (coro->mainstack && coro->mainstack != main_mainstack)
800	{	852	{
		853	assert (!(coro->flags & CF_RUNNING));
		854
801	struct coro temp;	855	struct coro temp;
802	Zero (&temp, 1, struct coro);	856	Zero (&temp, 1, struct coro);
803	temp.save = CORO_SAVE_ALL;	857	temp.save = CORO_SAVE_ALL;
804		858
805	if (coro->flags & CF_RUNNING)	859	if (coro->flags & CF_RUNNING)
…		…
815	coro->mainstack = 0;	869	coro->mainstack = 0;
816	}	870	}
817		871
818	cctx_destroy (coro->cctx);	872	cctx_destroy (coro->cctx);
819	SvREFCNT_dec (coro->args);	873	SvREFCNT_dec (coro->args);
820	Safefree (coro);	874
		875	return 1;
821	}	876	}
822		877
823	static int	878	static int
824	coro_state_clear (pTHX_ SV sv, MAGIC mg)	879	coro_state_free (pTHX_ SV sv, MAGIC mg)
825	{	880	{
826	struct coro coro = (struct coro )mg->mg_ptr;	881	struct coro coro = (struct coro )mg->mg_ptr;
827	mg->mg_ptr = 0;	882	mg->mg_ptr = 0;
828		883
		884	if (--coro->refcnt < 0)
		885	{
829	coro_state_destroy (coro);	886	coro_state_destroy (coro);
		887	Safefree (coro);
		888	}
830		889
831	return 0;	890	return 0;
832	}	891	}
833		892
834	static int	893	static int
…		…
841	return 0;	900	return 0;
842	}	901	}
843		902
844	static MGVTBL coro_state_vtbl = {	903	static MGVTBL coro_state_vtbl = {
845	0, 0, 0, 0,	904	0, 0, 0, 0,
846	coro_state_clear,	905	coro_state_free,
847	0,	906	0,
848	#ifdef MGf_DUP	907	#ifdef MGf_DUP
849	coro_state_dup,	908	coro_state_dup,
850	#else	909	#else
851	# define MGf_DUP 0	910	# define MGf_DUP 0
…		…
902	return old_save;	961	return old_save;
903	}	962	}
904		963
905	/ Coro ******************************************************************/	964	/ Coro ******************************************************************/
906		965
907	#define PRIO_MAX 3
908	#define PRIO_HIGH 1
909	#define PRIO_NORMAL 0
910	#define PRIO_LOW -1
911	#define PRIO_IDLE -3
912	#define PRIO_MIN -4
913
914	/* for Coro.pm */
915	static SV *coro_current;
916	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
917	static int coro_nready;
918
919	static void	966	static void
920	coro_enq (SV *coro_sv)	967	coro_enq (SV *coro_sv)
921	{	968	{
922	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	969	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
923	coro_nready++;
924	}	970	}
925		971
926	static SV *	972	static SV *
927	coro_deq (int min_prio)	973	coro_deq (int min_prio)
928	{	974	{
…		…
932	if (min_prio < 0)	978	if (min_prio < 0)
933	min_prio = 0;	979	min_prio = 0;
934		980
935	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	981	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
936	if (AvFILLp (coro_ready [prio]) >= 0)	982	if (AvFILLp (coro_ready [prio]) >= 0)
937	{
938	coro_nready--;
939	return av_shift (coro_ready [prio]);	983	return av_shift (coro_ready [prio]);
940	}
941		984
942	return 0;	985	return 0;
943	}	986	}
944		987
945	static int	988	static int
…		…
953	coro = SvSTATE (coro_sv);	996	coro = SvSTATE (coro_sv);
954		997
955	if (coro->flags & CF_READY)	998	if (coro->flags & CF_READY)
956	return 0;	999	return 0;
957		1000
958	#if 0 /* this is actually harmless */
959	if (coro->flags & CF_RUNNING)
960	croak ("Coro::ready called on currently running coroutine");
961	#endif
962
963	coro->flags \|= CF_READY;	1001	coro->flags \|= CF_READY;
964		1002
965	LOCK;	1003	LOCK;
966	coro_enq (SvREFCNT_inc (coro_sv));	1004	coro_enq (SvREFCNT_inc (coro_sv));
		1005	++coro_nready;
967	UNLOCK;	1006	UNLOCK;
968		1007
969	return 1;	1008	return 1;
970	}	1009	}
971		1010
972	static int	1011	static int
973	api_is_ready (SV *coro_sv)	1012	api_is_ready (SV *coro_sv)
974	{	1013	{
975	return !!SvSTATE (coro_sv)->flags & CF_READY;	1014	return !!(SvSTATE (coro_sv)->flags & CF_READY);
976	}	1015	}
977		1016
978	static void	1017	static void
979	prepare_schedule (struct transfer_args *ta)	1018	prepare_schedule (struct transfer_args *ta)
980	{	1019	{
981	SV prev, next;	1020	SV prev_sv, next_sv;
982		1021
983	for (;;)	1022	for (;;)
984	{	1023	{
985	LOCK;	1024	LOCK;
986	next = coro_deq (PRIO_MIN);	1025	next_sv = coro_deq (PRIO_MIN);
		1026
		1027	/* nothing to schedule: call the idle handler */
		1028	if (!next_sv)
		1029	{
		1030	UNLOCK;
		1031	dSP;
		1032
		1033	ENTER;
		1034	SAVETMPS;
		1035
		1036	PUSHMARK (SP);
		1037	PUTBACK;
		1038	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1039
		1040	FREETMPS;
		1041	LEAVE;
		1042	continue;
		1043	}
		1044
		1045	ta->next = SvSTATE (next_sv);
		1046
		1047	/* cannot transfer to destroyed coros, skip and look for next */
		1048	if (ta->next->flags & CF_DESTROYED)
		1049	{
		1050	UNLOCK;
		1051	SvREFCNT_dec (next_sv);
		1052	/* coro_nready is already taken care of by destroy */
		1053	continue;
		1054	}
		1055
		1056	--coro_nready;
987	UNLOCK;	1057	UNLOCK;
988
989	if (next)
990	break;	1058	break;
991
992	{
993	dSP;
994
995	ENTER;
996	SAVETMPS;
997
998	PUSHMARK (SP);
999	PUTBACK;
1000	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1001
1002	FREETMPS;
1003	LEAVE;
1004	}	1059	}
1005	}
1006
1007	prev = SvRV (coro_current);
1008	SvRV_set (coro_current, next);
1009		1060
1010	/* free this only after the transfer */	1061	/* free this only after the transfer */
		1062	prev_sv = SvRV (coro_current);
		1063	SvRV_set (coro_current, next_sv);
		1064	ta->prev = SvSTATE (prev_sv);
		1065
		1066	assert (ta->next->flags & CF_READY);
		1067	ta->next->flags &= ~CF_READY;
		1068
1011	LOCK;	1069	LOCK;
1012	free_coro_mortal ();	1070	free_coro_mortal ();
		1071	coro_mortal = prev_sv;
1013	UNLOCK;	1072	UNLOCK;
1014	coro_mortal = prev;
1015
1016	assert (!SvROK(prev));//D
1017	assert (!SvROK(next));//D
1018
1019	ta->prev = SvSTATE (prev);
1020	ta->next = SvSTATE (next);
1021
1022	assert (ta->next->flags & CF_READY);
1023	ta->next->flags &= ~CF_READY;
1024	}	1073	}
1025		1074
1026	static void	1075	static void
1027	prepare_cede (struct transfer_args *ta)	1076	prepare_cede (struct transfer_args *ta)
1028	{	1077	{
1029	api_ready (coro_current);	1078	api_ready (coro_current);
1030
1031	prepare_schedule (ta);	1079	prepare_schedule (ta);
		1080	}
		1081
		1082	static int
		1083	prepare_cede_notself (struct transfer_args *ta)
		1084	{
		1085	if (coro_nready)
		1086	{
		1087	SV *prev = SvRV (coro_current);
		1088	prepare_schedule (ta);
		1089	api_ready (prev);
		1090	return 1;
		1091	}
		1092	else
		1093	return 0;
1032	}	1094	}
1033		1095
1034	static void	1096	static void
1035	api_schedule (void)	1097	api_schedule (void)
1036	{	1098	{
…		…
1038		1100
1039	prepare_schedule (&ta);	1101	prepare_schedule (&ta);
1040	TRANSFER (ta);	1102	TRANSFER (ta);
1041	}	1103	}
1042		1104
1043	static void	1105	static int
1044	api_cede (void)	1106	api_cede (void)
1045	{	1107	{
1046	struct transfer_args ta;	1108	struct transfer_args ta;
1047		1109
1048	prepare_cede (&ta);	1110	prepare_cede (&ta);
		1111
		1112	if (ta.prev != ta.next)
		1113	{
1049	TRANSFER (ta);	1114	TRANSFER (ta);
		1115	return 1;
		1116	}
		1117	else
		1118	return 0;
		1119	}
		1120
		1121	static int
		1122	api_cede_notself (void)
		1123	{
		1124	struct transfer_args ta;
		1125
		1126	if (prepare_cede_notself (&ta))
		1127	{
		1128	TRANSFER (ta);
		1129	return 1;
		1130	}
		1131	else
		1132	return 0;
1050	}	1133	}
1051		1134
1052	MODULE = Coro::State PACKAGE = Coro::State	1135	MODULE = Coro::State PACKAGE = Coro::State
1053		1136
1054	PROTOTYPES: DISABLE	1137	PROTOTYPES: DISABLE
…		…
1110	_set_stacklevel (...)	1193	_set_stacklevel (...)
1111	ALIAS:	1194	ALIAS:
1112	Coro::State::transfer = 1	1195	Coro::State::transfer = 1
1113	Coro::schedule = 2	1196	Coro::schedule = 2
1114	Coro::cede = 3	1197	Coro::cede = 3
		1198	Coro::cede_notself = 4
1115	CODE:	1199	CODE:
1116	{	1200	{
1117	struct transfer_args ta;	1201	struct transfer_args ta;
1118		1202
1119	switch (ix)	1203	switch (ix)
…		…
1135	break;	1219	break;
1136		1220
1137	case 3:	1221	case 3:
1138	prepare_cede (&ta);	1222	prepare_cede (&ta);
1139	break;	1223	break;
		1224
		1225	case 4:
		1226	if (!prepare_cede_notself (&ta))
		1227	XSRETURN_EMPTY;
		1228
		1229	break;
1140	}	1230	}
1141		1231
		1232	BARRIER;
1142	TRANSFER (ta);	1233	TRANSFER (ta);
1143	}
1144		1234
1145	void	1235	if (GIMME_V != G_VOID && ta.next != ta.prev)
1146	_clone_state_from (SV dst, SV src)	1236	XSRETURN_YES;
		1237	}
		1238
		1239	bool
		1240	_destroy (SV *coro_sv)
1147	CODE:	1241	CODE:
1148	{	1242	RETVAL = coro_state_destroy (SvSTATE (coro_sv));
1149	struct coro *coro_src = SvSTATE (src);	1243	OUTPUT:
1150		1244	RETVAL
1151	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1152
1153	++coro_src->refcnt;
1154	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1155	}
1156		1245
1157	void	1246	void
1158	_exit (code)	1247	_exit (code)
1159	int code	1248	int code
1160	PROTOTYPE: $	1249	PROTOTYPE: $
…		…
1197	coro_ready[i] = newAV ();	1286	coro_ready[i] = newAV ();
1198		1287
1199	{	1288	{
1200	SV *sv = perl_get_sv("Coro::API", 1);	1289	SV *sv = perl_get_sv("Coro::API", 1);
1201		1290
1202	coroapi.schedule = api_schedule;	1291	coroapi.schedule = api_schedule;
1203	coroapi.save = api_save;	1292	coroapi.save = api_save;
1204	coroapi.cede = api_cede;	1293	coroapi.cede = api_cede;
		1294	coroapi.cede_notself = api_cede_notself;
1205	coroapi.ready = api_ready;	1295	coroapi.ready = api_ready;
1206	coroapi.is_ready = api_is_ready;	1296	coroapi.is_ready = api_is_ready;
1207	coroapi.nready = &coro_nready;	1297	coroapi.nready = &coro_nready;
1208	coroapi.current = coro_current;	1298	coroapi.current = coro_current;
1209		1299
1210	GCoroAPI = &coroapi;	1300	GCoroAPI = &coroapi;
1211	sv_setiv (sv, (IV)&coroapi);	1301	sv_setiv (sv, (IV)&coroapi);
1212	SvREADONLY_on (sv);	1302	SvREADONLY_on (sv);
1213	}	1303	}
…		…
1229	RETVAL = coro->prio;	1319	RETVAL = coro->prio;
1230		1320
1231	if (items > 1)	1321	if (items > 1)
1232	{	1322	{
1233	if (ix)	1323	if (ix)
1234	newprio += coro->prio;	1324	newprio = coro->prio - newprio;
1235		1325
1236	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1326	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
1237	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1327	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
1238		1328
1239	coro->prio = newprio;	1329	coro->prio = newprio;
1240	}	1330	}
1241	}	1331	}
		1332	OUTPUT:
		1333	RETVAL
1242		1334
1243	SV *	1335	SV *
1244	ready (SV *self)	1336	ready (SV *self)
1245	PROTOTYPE: $	1337	PROTOTYPE: $
1246	CODE:	1338	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.126 by root, Tue Dec 12 04:19:56 2006 UTC vs. Revision 1.139 by root, Sun Jan 14 21:13:41 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.126 by root, Tue Dec 12 04:19:56 2006 UTC vs.
Revision 1.139 by root, Sun Jan 14 21:13:41 2007 UTC