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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.21 by root, Sat Aug 11 19:59:19 2001 UTC vs.
Revision 1.44 by root, Sat Mar 22 18:50:32 2003 UTC

…		…
7	#include <signal.h>	7	#include <signal.h>
8		8
9	#ifdef HAVE_MMAP	9	#ifdef HAVE_MMAP
10	# include <unistd.h>	10	# include <unistd.h>
11	# include <sys/mman.h>	11	# include <sys/mman.h>
12	# ifndef MAP_ANON
13	# ifdef MAP_ANONYMOUS	12	# ifndef MAP_ANONYMOUS
14	# define MAP_ANON MAP_ANONYMOUS	13	# ifdef MAP_ANON
		14	# define MAP_ANONYMOUS MAP_ANON
15	# else	15	# else
16	# undef HAVE_MMAP	16	# undef HAVE_MMAP
17	# endif	17	# endif
18	# endif	18	# endif
19	#endif	19	#endif
20		20
21	#define MAY_FLUSH /* increases codesize */	21	#define MAY_FLUSH /* increases codesize and is rarely used */
22
23	/* perl-related */
24	#define TRANSFER_SAVE_DEFAV 0x00000001
25	#define TRANSFER_SAVE_DEFSV 0x00000002
26	#define TRANSFER_SAVE_ERRSV 0x00000004
27	/* c-related */
28	#define TRANSFER_SAVE_CCTXT 0x00000008
29	#ifdef CORO_LAZY_STACK
30	# define TRANSFER_LAZY_STACK 0x00000010
31	#else
32	# define TRANSFER_LAZY_STACK 0x00000000
33	#endif
34
35	#define TRANSFER_SAVE_ALL (TRANSFER_SAVE_DEFAV\|TRANSFER_SAVE_DEFSV \
36	\|TRANSFER_SAVE_ERRSV\|TRANSFER_SAVE_CCTXT)
37		22
38	#define SUB_INIT "Coro::State::initialize"	23	#define SUB_INIT "Coro::State::initialize"
39	#define UCORO_STATE "_coro_state"	24	#define UCORO_STATE "_coro_state"
40		25
41	/* The next macro should delcare a variable stacklevel that contains and approximation	26	/* The next macro should declare a variable stacklevel that contains and approximation
42	* 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
43	* and should be unique. */	28	* and should be unique. */
44	#define dSTACKLEVEL void *stacklevel = &stacklevel	29	#define dSTACKLEVEL void *stacklevel = &stacklevel
45		30
		31	#define IN_DESTRUCT (PL_main_cv == Nullcv)
		32
46	#define labs(l) ((l) >= 0 ? (l) : -(l))	33	#define labs(l) ((l) >= 0 ? (l) : -(l))
		34
		35	#include "CoroAPI.h"
		36
		37	static struct CoroAPI coroapi;
47		38
48	/* this is actually not only the c stack but also c registers etc... */	39	/* this is actually not only the c stack but also c registers etc... */
49	typedef struct {	40	typedef struct {
50	int refcnt; /* pointer reference counter */	41	int refcnt; /* pointer reference counter */
51	int usecnt; /* shared by how many coroutines */	42	int usecnt; /* shared by how many coroutines */
…		…
77	AV *curstack;	68	AV *curstack;
78	AV *mainstack;	69	AV *mainstack;
79	SV **stack_sp;	70	SV **stack_sp;
80	OP *op;	71	OP *op;
81	SV **curpad;	72	SV **curpad;
		73	AV *comppad;
82	SV **stack_base;	74	SV **stack_base;
83	SV **stack_max;	75	SV **stack_max;
84	SV **tmps_stack;	76	SV **tmps_stack;
85	I32 tmps_floor;	77	I32 tmps_floor;
86	I32 tmps_ix;	78	I32 tmps_ix;
…		…
110	static AV main_mainstack; / used to differentiate between $main and others */	102	static AV main_mainstack; / used to differentiate between $main and others */
111	static HV *coro_state_stash;	103	static HV *coro_state_stash;
112	static SV *ucoro_state_sv;	104	static SV *ucoro_state_sv;
113	static U32 ucoro_state_hash;	105	static U32 ucoro_state_hash;
114	static HV *padlist_cache;	106	static HV *padlist_cache;
115		107	static SV coro_mortal; / will be freed after next transfer */
116	/* for Coro.pm */
117	static GV coro_current, coro_idle;
118	static AV *coro_ready;
119		108
120	/* mostly copied from op.c:cv_clone2 */	109	/* mostly copied from op.c:cv_clone2 */
121	STATIC AV *	110	STATIC AV *
122	clone_padlist (AV *protopadlist)	111	clone_padlist (AV *protopadlist)
123	{	112	{
…		…
210		199
211	return newpadlist;	200	return newpadlist;
212	}	201	}
213		202
214	#ifdef MAY_FLUSH	203	#ifdef MAY_FLUSH
215	STATIC AV *	204	STATIC void
216	free_padlist (AV *padlist)	205	free_padlist (AV *padlist)
217	{	206	{
218	/* may be during global destruction */	207	/* may be during global destruction */
219	if (SvREFCNT(padlist))	208	if (SvREFCNT(padlist))
220	{	209	{
…		…
285	#endif	274	#endif
286		275
287	#define SB do {	276	#define SB do {
288	#define SE } while (0)	277	#define SE } while (0)
289		278
290	#define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE	279	#define LOAD(state) load_state(aTHX_ (state));
291	#define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE	280	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
292		281
293	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	282	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE
294		283
295	static void	284	static void
296	load_state(pTHX_ Coro__State c)	285	load_state(pTHX_ Coro__State c)
…		…
302	PL_curstack = c->curstack;	291	PL_curstack = c->curstack;
303	PL_mainstack = c->mainstack;	292	PL_mainstack = c->mainstack;
304	PL_stack_sp = c->stack_sp;	293	PL_stack_sp = c->stack_sp;
305	PL_op = c->op;	294	PL_op = c->op;
306	PL_curpad = c->curpad;	295	PL_curpad = c->curpad;
		296	PL_comppad = c->comppad;
307	PL_stack_base = c->stack_base;	297	PL_stack_base = c->stack_base;
308	PL_stack_max = c->stack_max;	298	PL_stack_max = c->stack_max;
309	PL_tmps_stack = c->tmps_stack;	299	PL_tmps_stack = c->tmps_stack;
310	PL_tmps_floor = c->tmps_floor;	300	PL_tmps_floor = c->tmps_floor;
311	PL_tmps_ix = c->tmps_ix;	301	PL_tmps_ix = c->tmps_ix;
…		…
370		360
371	PUSHs (Nullsv);	361	PUSHs (Nullsv);
372	/* this loop was inspired by pp_caller */	362	/* this loop was inspired by pp_caller */
373	for (;;)	363	for (;;)
374	{	364	{
375	do	365	while (cxix >= 0)
376	{	366	{
377	PERL_CONTEXT *cx = &ccstk[cxix--];	367	PERL_CONTEXT *cx = &ccstk[cxix--];
378		368
379	if (CxTYPE(cx) == CXt_SUB)	369	if (CxTYPE(cx) == CXt_SUB)
380	{	370	{
…		…
406	/* I never used formats, so how should I know how these are implemented? */	396	/* I never used formats, so how should I know how these are implemented? */
407	/* my bold guess is as a simple, plain sub... */	397	/* my bold guess is as a simple, plain sub... */
408	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	398	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
409	}	399	}
410	}	400	}
411	while (cxix >= 0);
412		401
413	if (top_si->si_type == PERLSI_MAIN)	402	if (top_si->si_type == PERLSI_MAIN)
414	break;	403	break;
415		404
416	top_si = top_si->si_prev;	405	top_si = top_si->si_prev;
…		…
422	}	411	}
423		412
424	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	413	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
425	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	414	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
426	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	415	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
427
428	/* I have not the slightest idea of why av_reify is necessary */
429	/* but if it's missing the defav contents magically get replaced sometimes */
430	if (c->defav)
431	av_reify (c->defav);
432		416
433	c->dowarn = PL_dowarn;	417	c->dowarn = PL_dowarn;
434	c->in_eval = PL_in_eval;	418	c->in_eval = PL_in_eval;
435		419
436	c->curstackinfo = PL_curstackinfo;	420	c->curstackinfo = PL_curstackinfo;
437	c->curstack = PL_curstack;	421	c->curstack = PL_curstack;
438	c->mainstack = PL_mainstack;	422	c->mainstack = PL_mainstack;
439	c->stack_sp = PL_stack_sp;	423	c->stack_sp = PL_stack_sp;
440	c->op = PL_op;	424	c->op = PL_op;
441	c->curpad = PL_curpad;	425	c->curpad = PL_curpad;
		426	c->comppad = PL_comppad;
442	c->stack_base = PL_stack_base;	427	c->stack_base = PL_stack_base;
443	c->stack_max = PL_stack_max;	428	c->stack_max = PL_stack_max;
444	c->tmps_stack = PL_tmps_stack;	429	c->tmps_stack = PL_tmps_stack;
445	c->tmps_floor = PL_tmps_floor;	430	c->tmps_floor = PL_tmps_floor;
446	c->tmps_ix = PL_tmps_ix;	431	c->tmps_ix = PL_tmps_ix;
…		…
508	* still there is a memleak of 128 bytes...	493	* still there is a memleak of 128 bytes...
509	*/	494	*/
510	STATIC void	495	STATIC void
511	destroy_stacks(pTHX)	496	destroy_stacks(pTHX)
512	{	497	{
		498	if (!IN_DESTRUCT)
		499	{
513	/* is this ugly, I ask? */	500	/* is this ugly, I ask? */
514	while (PL_scopestack_ix)	501	while (PL_scopestack_ix)
515	LEAVE;	502	LEAVE;
516		503
517	/* sure it is, but more important: is it correct?? :/ */	504	/* sure it is, but more important: is it correct?? :/ */
518	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */	505	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
519	FREETMPS;	506	FREETMPS;
		507	}
520		508
521	while (PL_curstackinfo->si_next)	509	while (PL_curstackinfo->si_next)
522	PL_curstackinfo = PL_curstackinfo->si_next;	510	PL_curstackinfo = PL_curstackinfo->si_next;
523		511
524	while (PL_curstackinfo)	512	while (PL_curstackinfo)
…		…
529	dSP;	517	dSP;
530	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	518	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
531	PUTBACK; /* possibly superfluous */	519	PUTBACK; /* possibly superfluous */
532	}	520	}
533		521
		522	if (!IN_DESTRUCT)
		523	{
534	dounwind(-1);	524	dounwind(-1);
535
536	SvREFCNT_dec(PL_curstackinfo->si_stack);	525	SvREFCNT_dec(PL_curstackinfo->si_stack);
		526	}
		527
537	Safefree(PL_curstackinfo->si_cxstack);	528	Safefree(PL_curstackinfo->si_cxstack);
538	Safefree(PL_curstackinfo);	529	Safefree(PL_curstackinfo);
539	PL_curstackinfo = p;	530	PL_curstackinfo = p;
540	}	531	}
541		532
…		…
556	stack->refcnt = 1;	547	stack->refcnt = 1;
557	stack->usecnt = 1;	548	stack->usecnt = 1;
558	stack->gencnt = ctx->gencnt = 0;	549	stack->gencnt = ctx->gencnt = 0;
559	if (alloc)	550	if (alloc)
560	{	551	{
561	#ifdef HAVE_MMAP	552	#if HAVE_MMAP
562	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	553	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */
563	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANON, 0, 0);	554	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
564	if (stack->sptr == (void *)-1)	555	if (stack->sptr == (void *)-1)
565	#endif	556	#endif
566	{	557	{
567	/FIXME//D//* reasonable stack size! */	558	/FIXME//D//* reasonable stack size! */
568	stack->ssize = -4096 * sizeof (long);	559	stack->ssize = -4096 * sizeof (long);
…		…
649	* that doesn't matter, though, since it is only	640	* that doesn't matter, though, since it is only
650	* pp_nextstate and we never return...	641	* pp_nextstate and we never return...
651	* ah yes, and I don't care anyways ;)	642	* ah yes, and I don't care anyways ;)
652	*/	643	*/
653	PUTBACK;	644	PUTBACK;
654	PL_op = pp_entersub();	645	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
655	SPAGAIN;	646	SPAGAIN;
656		647
657	ENTER; /* necessary e.g. for dounwind */	648	ENTER; /* necessary e.g. for dounwind */
658	}	649	}
659	}	650	}
…		…
663	{	654	{
664	/*	655	/*
665	* this is a _very_ stripped down perl interpreter ;)	656	* this is a _very_ stripped down perl interpreter ;)
666	*/	657	*/
667	Coro__State ctx = (Coro__State)arg;	658	Coro__State ctx = (Coro__State)arg;
		659	JMPENV coro_start_env;
668		660
669	/FIXME//* must set up top_env here */	661	/* same as JMPENV_BOOTSTRAP */
		662	Zero(&coro_start_env, 1, JMPENV);
		663	coro_start_env.je_ret = -1;
		664	coro_start_env.je_mustcatch = TRUE;
		665	PL_top_env = &coro_start_env;
		666
670	ctx->cursp = 0;	667	ctx->cursp = 0;
671	PL_op = PL_op->op_next;	668	PL_op = PL_op->op_next;
672	CALLRUNOPS(aTHX);	669	CALLRUNOPS(aTHX);
673		670
674	abort ();	671	abort ();
675	}	672	}
676		673
677	STATIC void	674	STATIC void
678	transfer(pTHX_ struct coro prev, struct coro next, int flags)	675	transfer(pTHX_ struct coro prev, struct coro next, int flags)
679	{	676	{
680	dSP;
681	dSTACKLEVEL;	677	dSTACKLEVEL;
		678	static struct coro *xnext;
682		679
683	if (prev != next)	680	if (prev != next)
684	{	681	{
		682	xnext = next;
		683
685	if (next->mainstack)	684	if (next->mainstack)
686	{	685	{
687	SAVE (prev, flags);	686	SAVE (prev, flags);
688	LOAD (next);	687	LOAD (next);
689		688
…		…
712	continue_coro, (void *)next,	711	continue_coro, (void *)next,
713	next->stack->sptr, labs (next->stack->ssize));	712	next->stack->sptr, labs (next->stack->ssize));
714	}	713	}
715		714
716	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	715	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		716	/* don't add any code here */
717	}	717	}
718		718
719	}	719	}
720	else if (next->tmps_ix == -2)	720	else if (next->tmps_ix == -2)
721	croak ("tried to transfer to running coroutine");	721	croak ("tried to transfer to running coroutine");
…		…
742	allocate_stack (next, 1);	742	allocate_stack (next, 1);
743	coro_create (&(next->stack->cctx),	743	coro_create (&(next->stack->cctx),
744	setup_coro, (void *)next,	744	setup_coro, (void *)next,
745	next->stack->sptr, labs (next->stack->ssize));	745	next->stack->sptr, labs (next->stack->ssize));
746	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	746	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		747	/* don't add any code here */
747	}	748	}
748	}	749	}
749	else	750	else
750	setup_coro (next);	751	setup_coro (next);
751	}	752	}
752	}
753		753
		754	/*
		755	* xnext is now either prev or next, depending on wether
		756	* we switched the c stack or not. that's why I use a global
		757	* variable, that should become thread-specific at one point.
		758	*/
754	next->cursp = stacklevel;	759	xnext->cursp = stacklevel;
755	}	760	}
756		761
757	static struct coro *	762	if (coro_mortal)
758	sv_to_coro (SV arg, const char funcname, const char *varname)
759	{
760	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
761	{	763	{
		764	SvREFCNT_dec (coro_mortal);
		765	coro_mortal = 0;
		766	}
		767	}
		768
		769	#define SV_CORO(sv,func) \
		770	do { \
		771	if (SvROK (sv)) \
		772	sv = SvRV (sv); \
		773	\
		774	if (SvTYPE(sv) == SVt_PVHV) \
		775	{ \
762	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	776	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
763		777	\
764	if (!he)	778	if (!he) \
765	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);	779	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
766		780	\
767	arg = HeVAL(he);	781	(sv) = SvRV (HeVAL(he)); \
768	}	782	} \
769		783	\
770	/* must also be changed inside Coro::Cont::yield */	784	/* must also be changed inside Coro::Cont::yield */ \
771	if (SvROK(arg) && SvSTASH(SvRV(arg)) == coro_state_stash)	785	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \
772	return (struct coro ) SvIV((SV)SvRV(arg));
773	else
774	croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname);	786	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
		787	\
		788	} while(0)
		789
		790	#define SvSTATE(sv) (struct coro *)SvIV (sv)
		791
		792	static void
		793	api_transfer(pTHX_ SV prev, SV next, int flags)
		794	{
		795	SV_CORO (prev, "Coro::transfer");
		796	SV_CORO (next, "Coro::transfer");
		797
		798	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);
		799	}
		800
		801	/ Coro ******************************************************************/
		802
		803	#define PRIO_MAX 3
		804	#define PRIO_HIGH 1
		805	#define PRIO_NORMAL 0
		806	#define PRIO_LOW -1
		807	#define PRIO_IDLE -3
		808	#define PRIO_MIN -4
		809
		810	/* for Coro.pm */
		811	static GV coro_current, coro_idle;
		812	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
		813	static int coro_nready;
		814
		815	static void
		816	coro_enq (SV *sv)
		817	{
		818	if (SvTYPE (sv) == SVt_PVHV)
		819	{
		820	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
		821	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		822
		823	prio = prio > PRIO_MAX ? PRIO_MAX
		824	: prio < PRIO_MIN ? PRIO_MIN
		825	: prio;
		826
		827	av_push (coro_ready [prio - PRIO_MIN], sv);
		828	coro_nready++;
		829
		830	return;
		831	}
		832
		833	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		834	}
		835
		836	static SV *
		837	coro_deq (int min_prio)
		838	{
		839	int prio = PRIO_MAX - PRIO_MIN;
		840
		841	min_prio -= PRIO_MIN;
		842	if (min_prio < 0)
		843	min_prio = 0;
		844
		845	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
		846	if (av_len (coro_ready[prio]) >= 0)
		847	{
		848	coro_nready--;
		849	return av_shift (coro_ready[prio]);
		850	}
		851
		852	return 0;
		853	}
		854
		855	static void
		856	api_ready (SV *coro)
		857	{
		858	if (SvROK (coro))
		859	coro = SvRV (coro);
		860
		861	coro_enq (SvREFCNT_inc (coro));
		862	}
		863
		864	static void
		865	api_schedule (void)
		866	{
		867	SV prev, next;
		868
		869	prev = SvRV (GvSV (coro_current));
		870	next = coro_deq (PRIO_MIN);
		871
		872	if (!next)
		873	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
		874
		875	/* free this only after the transfer */
		876	coro_mortal = prev;
		877	SV_CORO (prev, "Coro::schedule");
		878
		879	SvRV (GvSV (coro_current)) = next;
		880
		881	SV_CORO (next, "Coro::schedule");
		882
		883	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
		884	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
		885	}
		886
		887	static void
		888	api_cede (void)
		889	{
		890	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
		891
		892	api_schedule ();
775	}	893	}
776		894
777	MODULE = Coro::State PACKAGE = Coro::State	895	MODULE = Coro::State PACKAGE = Coro::State
778		896
779	PROTOTYPES: ENABLE	897	PROTOTYPES: ENABLE
…		…
791		909
792	if (!padlist_cache)	910	if (!padlist_cache)
793	padlist_cache = newHV ();	911	padlist_cache = newHV ();
794		912
795	main_mainstack = PL_mainstack;	913	main_mainstack = PL_mainstack;
		914
		915	coroapi.ver = CORO_API_VERSION;
		916	coroapi.transfer = api_transfer;
796	}	917	}
797		918
798	Coro::State	919	Coro::State
799	_newprocess(args)	920	_newprocess(args)
800	SV * args	921	SV * args
…		…
815	OUTPUT:	936	OUTPUT:
816	RETVAL	937	RETVAL
817		938
818	void	939	void
819	transfer(prev, next, flags)	940	transfer(prev, next, flags)
820	Coro::State_or_hashref prev	941	SV *prev
821	Coro::State_or_hashref next	942	SV *next
822	int flags	943	int flags
823	PROTOTYPE: @	944	PROTOTYPE: @
824	CODE:	945	CODE:
825	PUTBACK;	946	PUTBACK;
		947	SV_CORO (next, "Coro::transfer");
		948	SV_CORO (prev, "Coro::transfer");
826	transfer (aTHX_ prev, next, flags);	949	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
827	SPAGAIN;	950	SPAGAIN;
828		951
829	void	952	void
830	DESTROY(coro)	953	DESTROY(coro)
831	Coro::State coro	954	Coro::State coro
…		…
833		956
834	if (coro->mainstack && coro->mainstack != main_mainstack)	957	if (coro->mainstack && coro->mainstack != main_mainstack)
835	{	958	{
836	struct coro temp;	959	struct coro temp;
837		960
		961	PUTBACK;
838	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	962	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);
839	LOAD(aTHX_ coro);	963	LOAD(aTHX_ coro);
		964	SPAGAIN;
840		965
841	destroy_stacks (aTHX);	966	destroy_stacks (aTHX);
842		967
843	LOAD((&temp)); /* this will get rid of defsv etc.. */	968	LOAD((&temp)); /* this will get rid of defsv etc.. */
		969	SPAGAIN;
844		970
845	coro->mainstack = 0;	971	coro->mainstack = 0;
846	}	972	}
847		973
848	deallocate_stack (coro);	974	deallocate_stack (coro);
…		…
903		1029
904	# this is slightly dirty (should expose a c-level api)	1030	# this is slightly dirty (should expose a c-level api)
905		1031
906	BOOT:	1032	BOOT:
907	{	1033	{
		1034	int i;
		1035	HV *stash = gv_stashpv ("Coro", TRUE);
		1036
		1037	newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));
		1038	newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
		1039	newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
		1040	newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));
		1041	newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
		1042	newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));
		1043
908	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1044	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
909	coro_ready = newAV ();
910	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1045	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
		1046
		1047	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
		1048	coro_ready[i] = newAV ();
		1049
		1050	{
		1051	SV *sv = perl_get_sv("Coro::API", 1);
		1052
		1053	coroapi.schedule = api_schedule;
		1054	coroapi.cede = api_cede;
		1055	coroapi.ready = api_ready;
		1056	coroapi.nready = &coro_nready;
		1057	coroapi.current = coro_current;
		1058
		1059	GCoroAPI = &coroapi;
		1060	sv_setiv(sv, (IV)&coroapi);
		1061	SvREADONLY_on(sv);
		1062	}
911	}	1063	}
912		1064
913	void	1065	void
914	ready(self)	1066	ready(self)
915	SV * self	1067	SV * self
		1068	PROTOTYPE: $
916	CODE:	1069	CODE:
917	av_push (coro_ready, SvREFCNT_inc (self));	1070	api_ready (self);
		1071
		1072	int
		1073	nready(...)
		1074	PROTOTYPE:
		1075	CODE:
		1076	RETVAL = coro_nready;
		1077	OUTPUT:
		1078	RETVAL
918		1079
919	void	1080	void
920	schedule(...)	1081	schedule(...)
921	ALIAS:	1082	PROTOTYPE:
922	cede = 1
923	CODE:	1083	CODE:
924	SV *prev = GvSV (coro_current);	1084	api_schedule ();
925	SV *next = av_shift (coro_ready);
926		1085
927	if (next == &PL_sv_undef)	1086	void
928	next = SvREFCNT_inc (GvSV (coro_idle));	1087	cede(...)
		1088	PROTOTYPE:
		1089	CODE:
		1090	api_cede ();
929		1091
930	if (ix)
931	av_push (coro_ready, SvREFCNT_inc (prev));
932
933	GvSV (coro_current) = SvREFCNT_inc (next);
934	transfer (sv_to_coro (prev, "Coro::schedule", "current coroutine"),
935	sv_to_coro (next, "Coro::schedule", "next coroutine"),
936	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
937	SvREFCNT_dec (next);
938	SvREFCNT_dec (prev);
939

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Comparing Coro/Coro/State.xs (file contents): Revision 1.21 by root, Sat Aug 11 19:59:19 2001 UTC vs. Revision 1.44 by root, Sat Mar 22 18:50:32 2003 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.21 by root, Sat Aug 11 19:59:19 2001 UTC vs.
Revision 1.44 by root, Sat Mar 22 18:50:32 2003 UTC