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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.17 by root, Wed Jul 25 14:01:46 2001 UTC vs.
Revision 1.24 by root, Tue Aug 14 14:56:22 2001 UTC

…		…
1	#include "EXTERN.h"	1	#include "EXTERN.h"
2	#include "perl.h"	2	#include "perl.h"
3	#include "XSUB.h"	3	#include "XSUB.h"
4		4
5	#include "libcoro/coro.c"	5	#include "libcoro/coro.c"
		6
		7	#include <signal.h>
6		8
7	#ifdef HAVE_MMAP	9	#ifdef HAVE_MMAP
8	# include <unistd.h>	10	# include <unistd.h>
9	# include <sys/mman.h>	11	# include <sys/mman.h>
10	# ifndef MAP_ANON	12	# ifndef MAP_ANON
16	# endif	18	# endif
17	#endif	19	#endif
18		20
19	#define MAY_FLUSH /* increases codesize */	21	#define MAY_FLUSH /* increases codesize */
20		22
21	/* perl-related */
22	#define TRANSFER_SAVE_DEFAV 0x00000001
23	#define TRANSFER_SAVE_DEFSV 0x00000002
24	#define TRANSFER_SAVE_ERRSV 0x00000004
25	/* c-related */
26	#define TRANSFER_SAVE_CCTXT 0x00000008
27	#ifdef CORO_LAZY_STACK
28	# define TRANSFER_LAZY_STACK 0x00000010
29	#else
30	# define TRANSFER_LAZY_STACK 0x00000000
31	#endif
32
33	#define TRANSFER_SAVE_ALL (TRANSFER_SAVE_DEFAV\|TRANSFER_SAVE_DEFSV \
34	\|TRANSFER_SAVE_ERRSV\|TRANSFER_SAVE_CCTXT)
35
36	#define SUB_INIT "Coro::State::initialize"	23	#define SUB_INIT "Coro::State::initialize"
37	#define UCORO_STATE "_coro_state"	24	#define UCORO_STATE "_coro_state"
38		25
39	/* The next macro should delcare a variable stacklevel that contains and approximation	26	/* The next macro should delcare a variable stacklevel that contains and approximation
40	* to the current C stack pointer. It's property is that it changes with each call	27	* to the current C stack pointer. Its property is that it changes with each call
41	* and should be unique. */	28	* and should be unique. */
42	#define dSTACKLEVEL void *stacklevel = &stacklevel	29	#define dSTACKLEVEL void *stacklevel = &stacklevel
43		30
44	#define labs(l) ((l) >= 0 ? (l) : -(l))	31	#define labs(l) ((l) >= 0 ? (l) : -(l))
		32
		33	#include "CoroAPI.h"
		34
		35	static struct CoroAPI coroapi;
45		36
46	/* this is actually not only the c stack but also c registers etc... */	37	/* this is actually not only the c stack but also c registers etc... */
47	typedef struct {	38	typedef struct {
48	int refcnt; /* pointer reference counter */	39	int refcnt; /* pointer reference counter */
49	int usecnt; /* shared by how many coroutines */	40	int usecnt; /* shared by how many coroutines */
…		…
52	coro_context cctx;	43	coro_context cctx;
53		44
54	void *sptr;	45	void *sptr;
55	long ssize; /* positive == mmap, otherwise malloc */	46	long ssize; /* positive == mmap, otherwise malloc */
56	} coro_stack;	47	} coro_stack;
57
58	static coro_stack main_stack = { 1, 0, 0 };
59		48
60	struct coro {	49	struct coro {
61	/* the optional C context */	50	/* the optional C context */
62	coro_stack *stack;	51	coro_stack *stack;
63	void *cursp;	52	void *cursp;
…		…
68	SV *defsv;	57	SV *defsv;
69	SV *errsv;	58	SV *errsv;
70		59
71	/* saved global state not related to stacks */	60	/* saved global state not related to stacks */
72	U8 dowarn;	61	U8 dowarn;
		62	I32 in_eval;
73		63
74	/* the stacks and related info (callchain etc..) */	64	/* the stacks and related info (callchain etc..) */
75	PERL_SI *curstackinfo;	65	PERL_SI *curstackinfo;
76	AV *curstack;	66	AV *curstack;
77	AV *mainstack;	67	AV *mainstack;
…		…
95	I32 savestack_max;	85	I32 savestack_max;
96	OP **retstack;	86	OP **retstack;
97	I32 retstack_ix;	87	I32 retstack_ix;
98	I32 retstack_max;	88	I32 retstack_max;
99	COP *curcop;	89	COP *curcop;
100	JMPENV start_env;
101	JMPENV *top_env;	90	JMPENV *top_env;
102		91
103	/* data associated with this coroutine (initial args) */	92	/* data associated with this coroutine (initial args) */
104	AV *args;	93	AV *args;
105	};	94	};
…		…
290		279
291	static void	280	static void
292	load_state(pTHX_ Coro__State c)	281	load_state(pTHX_ Coro__State c)
293	{	282	{
294	PL_dowarn = c->dowarn;	283	PL_dowarn = c->dowarn;
		284	PL_in_eval = c->in_eval;
295		285
296	PL_curstackinfo = c->curstackinfo;	286	PL_curstackinfo = c->curstackinfo;
297	PL_curstack = c->curstack;	287	PL_curstack = c->curstack;
298	PL_mainstack = c->mainstack;	288	PL_mainstack = c->mainstack;
299	PL_stack_sp = c->stack_sp;	289	PL_stack_sp = c->stack_sp;
…		…
316	PL_savestack_max = c->savestack_max;	306	PL_savestack_max = c->savestack_max;
317	PL_retstack = c->retstack;	307	PL_retstack = c->retstack;
318	PL_retstack_ix = c->retstack_ix;	308	PL_retstack_ix = c->retstack_ix;
319	PL_retstack_max = c->retstack_max;	309	PL_retstack_max = c->retstack_max;
320	PL_curcop = c->curcop;	310	PL_curcop = c->curcop;
321	PL_start_env = c->start_env;
322	PL_top_env = c->top_env;	311	PL_top_env = c->top_env;
323		312
324	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	313	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
325	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	314	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
326	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	315	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
…		…
425	/* but if it's missing the defav contents magically get replaced sometimes */	414	/* but if it's missing the defav contents magically get replaced sometimes */
426	if (c->defav)	415	if (c->defav)
427	av_reify (c->defav);	416	av_reify (c->defav);
428		417
429	c->dowarn = PL_dowarn;	418	c->dowarn = PL_dowarn;
		419	c->in_eval = PL_in_eval;
430		420
431	c->curstackinfo = PL_curstackinfo;	421	c->curstackinfo = PL_curstackinfo;
432	c->curstack = PL_curstack;	422	c->curstack = PL_curstack;
433	c->mainstack = PL_mainstack;	423	c->mainstack = PL_mainstack;
434	c->stack_sp = PL_stack_sp;	424	c->stack_sp = PL_stack_sp;
…		…
451	c->savestack_max = PL_savestack_max;	441	c->savestack_max = PL_savestack_max;
452	c->retstack = PL_retstack;	442	c->retstack = PL_retstack;
453	c->retstack_ix = PL_retstack_ix;	443	c->retstack_ix = PL_retstack_ix;
454	c->retstack_max = PL_retstack_max;	444	c->retstack_max = PL_retstack_max;
455	c->curcop = PL_curcop;	445	c->curcop = PL_curcop;
456	c->start_env = PL_start_env;
457	c->top_env = PL_top_env;	446	c->top_env = PL_top_env;
458	}	447	}
459		448
460	/*	449	/*
461	* allocate various perl stacks. This is an exact copy	450	* allocate various perl stacks. This is an exact copy
…		…
525	dSP;	514	dSP;
526	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	515	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
527	PUTBACK; /* possibly superfluous */	516	PUTBACK; /* possibly superfluous */
528	}	517	}
529		518
		519	if (PL_main_cv != Nullcv) /* don't during destruction. hack? */
530	dounwind(-1);	520	dounwind(-1);
531		521
532	SvREFCNT_dec(PL_curstackinfo->si_stack);	522	SvREFCNT_dec(PL_curstackinfo->si_stack);
533	Safefree(PL_curstackinfo->si_cxstack);	523	Safefree(PL_curstackinfo->si_cxstack);
534	Safefree(PL_curstackinfo);	524	Safefree(PL_curstackinfo);
535	PL_curstackinfo = p;	525	PL_curstackinfo = p;
…		…
605	dSP;	595	dSP;
606	Coro__State ctx = (Coro__State)arg;	596	Coro__State ctx = (Coro__State)arg;
607	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	597	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);
608		598
609	coro_init_stacks (aTHX);	599	coro_init_stacks (aTHX);
610	JMPENV_BOOTSTRAP;
611	SPAGAIN;
612
613	/PL_curcop = 0;/	600	/PL_curcop = 0;/
		601	/PL_in_eval = PL_in_eval;/ /* inherit */
614	SvREFCNT_dec (GvAV (PL_defgv));	602	SvREFCNT_dec (GvAV (PL_defgv));
615	GvAV (PL_defgv) = ctx->args;	603	GvAV (PL_defgv) = ctx->args;
616		604
		605	SPAGAIN;
		606
617	if (ctx->stack)	607	if (ctx->stack)
618	{	608	{
619	ctx->cursp = 0;	609	ctx->cursp = 0;
620		610
621	PUSHMARK(SP);	611	PUSHMARK(SP);
622	PUTBACK;	612	PUTBACK;
623	(void) call_sv (sub_init, G_VOID\|G_NOARGS);	613	(void) call_sv (sub_init, G_VOID\|G_NOARGS\|G_EVAL);
		614
		615	if (SvTRUE (ERRSV))
		616	croak (NULL);
		617	else
624	croak ("FATAL: CCTXT coroutine returned!");	618	croak ("FATAL: CCTXT coroutine returned!");
625	}	619	}
626	else	620	else
627	{	621	{
628	UNOP myop;	622	UNOP myop;
629		623
…		…
656	/*	650	/*
657	* this is a _very_ stripped down perl interpreter ;)	651	* this is a _very_ stripped down perl interpreter ;)
658	*/	652	*/
659	Coro__State ctx = (Coro__State)arg;	653	Coro__State ctx = (Coro__State)arg;
660		654
		655	/FIXME//* must set up top_env here */
661	ctx->cursp = 0;	656	ctx->cursp = 0;
662	PL_op = PL_op->op_next;	657	PL_op = PL_op->op_next;
663	CALLRUNOPS(aTHX);	658	CALLRUNOPS(aTHX);
664	/NORETURN/	659
665	abort ();	660	abort ();
666	}	661	}
667		662
668	STATIC void	663	STATIC void
669	transfer(pTHX_ struct coro prev, struct coro next, int flags)	664	transfer(pTHX_ struct coro prev, struct coro next, int flags)
…		…
743	}	738	}
744		739
745	next->cursp = stacklevel;	740	next->cursp = stacklevel;
746	}	741	}
747		742
		743	static struct coro *
		744	sv_to_coro (SV arg, const char funcname, const char *varname)
		745	{
		746	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
		747	{
		748	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);
		749
		750	if (!he)
		751	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);
		752
		753	arg = HeVAL(he);
		754	}
		755
		756	/* must also be changed inside Coro::Cont::yield */
		757	if (SvROK(arg) && SvSTASH(SvRV(arg)) == coro_state_stash)
		758	return (struct coro ) SvIV((SV)SvRV(arg));
		759	else
		760	croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname);
		761	}
		762
		763	static void
		764	api_transfer(pTHX_ SV prev, SV next, int flags)
		765	{
		766	transfer(aTHX_ sv_to_coro (prev, "Coro::transfer", "prev"),
		767	sv_to_coro (next, "Coro::transfer", "next"),
		768	flags);
		769	}
		770
		771	/ Coro ******************************************************************/
		772
		773	#define PRIO_MAX 3
		774	#define PRIO_HIGH 1
		775	#define PRIO_NORMAL 0
		776	#define PRIO_LOW -1
		777	#define PRIO_IDLE -3
		778	#define PRIO_MIN -4
		779
		780	/* for Coro.pm */
		781	static GV coro_current, coro_idle;
		782	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
		783
		784	static void
		785	coro_enq (SV *sv)
		786	{
		787	if (SvROK (sv))
		788	{
		789	SV *hv = SvRV (sv);
		790	if (SvTYPE (hv) == SVt_PVHV)
		791	{
		792	SV *xprio = hv_fetch ((HV )hv, "prio", 4, 0);
		793	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		794
		795	prio = prio > PRIO_MAX ? PRIO_MAX
		796	: prio < PRIO_MIN ? PRIO_MIN
		797	: prio;
		798
		799	av_push (coro_ready [prio - PRIO_MIN], sv);
		800
		801	return;
		802	}
		803	}
		804
		805	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		806	}
		807
		808	static SV *
		809	coro_deq (int min_prio)
		810	{
		811	int prio = PRIO_MAX - PRIO_MIN;
		812
		813	min_prio -= PRIO_MIN;
		814	if (min_prio < 0)
		815	min_prio = 0;
		816
		817	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
		818	if (av_len (coro_ready[prio]) >= 0)
		819	return av_shift (coro_ready[prio]);
		820
		821	return 0;
		822	}
		823
		824	static void
		825	api_ready (SV *coro)
		826	{
		827	coro_enq (SvREFCNT_inc (coro));
		828	}
		829
		830	static void
		831	api_schedule (int cede)
		832	{
		833	SV prev, next;
		834
		835	prev = GvSV (coro_current);
		836
		837	if (cede)
		838	coro_enq (SvREFCNT_inc (prev));
		839
		840	next = coro_deq (PRIO_MIN);
		841
		842	if (!next)
		843	next = SvREFCNT_inc (GvSV (coro_idle));
		844
		845	GvSV (coro_current) = SvREFCNT_inc (next);
		846	transfer (sv_to_coro (prev, "Coro::schedule", "current coroutine"),
		847	sv_to_coro (next, "Coro::schedule", "next coroutine"),
		848	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
		849	SvREFCNT_dec (next);
		850	SvREFCNT_dec (prev);
		851	}
		852
748	MODULE = Coro::State PACKAGE = Coro::State	853	MODULE = Coro::State PACKAGE = Coro::State
749		854
750	PROTOTYPES: ENABLE	855	PROTOTYPES: ENABLE
751		856
752	BOOT:	857	BOOT:
…		…
762		867
763	if (!padlist_cache)	868	if (!padlist_cache)
764	padlist_cache = newHV ();	869	padlist_cache = newHV ();
765		870
766	main_mainstack = PL_mainstack;	871	main_mainstack = PL_mainstack;
		872
		873	{
		874	SV *sv = perl_get_sv("Coro::API", 1);
		875
		876	coroapi.ver = CORO_API_VERSION - 1;
		877	coroapi.transfer = api_transfer;
		878	coroapi.schedule = api_schedule;
		879	coroapi.ready = api_ready;
		880
		881	GCoroAPI = &coroapi;
		882	sv_setiv(sv, (IV)&coroapi);
		883	SvREADONLY_on(sv);
		884	}
767	}	885	}
768		886
769	Coro::State	887	Coro::State
770	_newprocess(args)	888	_newprocess(args)
771	SV * args	889	SV * args
…		…
785	RETVAL = coro;	903	RETVAL = coro;
786	OUTPUT:	904	OUTPUT:
787	RETVAL	905	RETVAL
788		906
789	void	907	void
790	transfer(prev, next, flags = TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK)	908	transfer(prev, next, flags)
791	Coro::State_or_hashref prev	909	Coro::State_or_hashref prev
792	Coro::State_or_hashref next	910	Coro::State_or_hashref next
793	int flags	911	int flags
794	PROTOTYPE: @	912	PROTOTYPE: @
795	CODE:	913	CODE:
		914	PUTBACK;
796	transfer (aTHX_ prev, next, flags);	915	transfer (aTHX_ prev, next, flags);
		916	SPAGAIN;
797		917
798	void	918	void
799	DESTROY(coro)	919	DESTROY(coro)
800	Coro::State coro	920	Coro::State coro
801	CODE:	921	CODE:
…		…
823	CODE:	943	CODE:
824	#ifdef MAY_FLUSH	944	#ifdef MAY_FLUSH
825	flush_padlist_cache ();	945	flush_padlist_cache ();
826	#endif	946	#endif
827		947
		948	void
		949	_exit(code)
		950	int code
		951	PROTOTYPE: $
		952	CODE:
		953	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
		954	_exit (code);
		955	#else
		956	signal (SIGTERM, SIG_DFL);
		957	raise (SIGTERM);
		958	exit (code);
		959	#endif
		960
828	MODULE = Coro::State PACKAGE = Coro::Cont	961	MODULE = Coro::State PACKAGE = Coro::Cont
829		962
830	# this is slightly dirty	963	# this is slightly dirty (should expose a c-level api)
831		964
832	void	965	void
833	yield(...)	966	yield(...)
834	PROTOTYPE: @	967	PROTOTYPE: @
835	CODE:	968	CODE:
…		…
853	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	986	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));
854	SvREFCNT_dec (sv);	987	SvREFCNT_dec (sv);
855		988
856	transfer(aTHX_ prev, next, 0);	989	transfer(aTHX_ prev, next, 0);
857		990
		991	MODULE = Coro::State PACKAGE = Coro
		992
		993	# this is slightly dirty (should expose a c-level api)
		994
		995	BOOT:
		996	{
		997	int i;
		998	HV *stash = gv_stashpv ("Coro", TRUE);
		999
		1000	newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));
		1001	newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
		1002	newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
		1003	newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));
		1004	newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
		1005	newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));
		1006
		1007	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
		1008	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
		1009
		1010	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
		1011	coro_ready[i] = newAV ();
		1012	}
		1013
		1014	void
		1015	ready(self)
		1016	SV * self
		1017	CODE:
		1018	api_ready (self);
		1019
		1020	void
		1021	schedule(...)
		1022	ALIAS:
		1023	cede = 1
		1024	CODE:
		1025	api_schedule (ix);
		1026

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Comparing Coro/Coro/State.xs (file contents): Revision 1.17 by root, Wed Jul 25 14:01:46 2001 UTC vs. Revision 1.24 by root, Tue Aug 14 14:56:22 2001 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.17 by root, Wed Jul 25 14:01:46 2001 UTC vs.
Revision 1.24 by root, Tue Aug 14 14:56:22 2001 UTC