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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.18 by root, Thu Jul 26 03:46:15 2001 UTC vs.
Revision 1.42 by root, Mon Dec 31 20:41:45 2001 UTC

…		…
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		6
		7	#include <signal.h>
		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
11	# ifdef MAP_ANONYMOUS	12	# ifndef MAP_ANONYMOUS
12	# define MAP_ANON MAP_ANONYMOUS	13	# ifdef MAP_ANON
		14	# define MAP_ANONYMOUS MAP_ANON
13	# else	15	# else
14	# undef HAVE_MMAP	16	# undef HAVE_MMAP
15	# endif	17	# endif
16	# endif	18	# endif
17	#endif	19	#endif
18		20
19	#define MAY_FLUSH /* increases codesize */	21	#define MAY_FLUSH /* increases codesize and is rarely used */
20
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		22
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 declare 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
		31	#define IN_DESTRUCT (PL_main_cv == Nullcv)
		32
44	#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;
45		38
46	/* 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... */
47	typedef struct {	40	typedef struct {
48	int refcnt; /* pointer reference counter */	41	int refcnt; /* pointer reference counter */
49	int usecnt; /* shared by how many coroutines */	42	int usecnt; /* shared by how many coroutines */
…		…
66	SV *defsv;	59	SV *defsv;
67	SV *errsv;	60	SV *errsv;
68		61
69	/* saved global state not related to stacks */	62	/* saved global state not related to stacks */
70	U8 dowarn;	63	U8 dowarn;
		64	I32 in_eval;
71		65
72	/* the stacks and related info (callchain etc..) */	66	/* the stacks and related info (callchain etc..) */
73	PERL_SI *curstackinfo;	67	PERL_SI *curstackinfo;
74	AV *curstack;	68	AV *curstack;
75	AV *mainstack;	69	AV *mainstack;
…		…
93	I32 savestack_max;	87	I32 savestack_max;
94	OP **retstack;	88	OP **retstack;
95	I32 retstack_ix;	89	I32 retstack_ix;
96	I32 retstack_max;	90	I32 retstack_max;
97	COP *curcop;	91	COP *curcop;
98	JMPENV start_env;
99	JMPENV *top_env;	92	JMPENV *top_env;
100		93
101	/* data associated with this coroutine (initial args) */	94	/* data associated with this coroutine (initial args) */
102	AV *args;	95	AV *args;
103	};	96	};
…		…
108	static AV main_mainstack; / used to differentiate between $main and others */	101	static AV main_mainstack; / used to differentiate between $main and others */
109	static HV *coro_state_stash;	102	static HV *coro_state_stash;
110	static SV *ucoro_state_sv;	103	static SV *ucoro_state_sv;
111	static U32 ucoro_state_hash;	104	static U32 ucoro_state_hash;
112	static HV *padlist_cache;	105	static HV *padlist_cache;
		106	static SV coro_mortal; / will be freed after next transfer */
113		107
114	/* mostly copied from op.c:cv_clone2 */	108	/* mostly copied from op.c:cv_clone2 */
115	STATIC AV *	109	STATIC AV *
116	clone_padlist (AV *protopadlist)	110	clone_padlist (AV *protopadlist)
117	{	111	{
…		…
204		198
205	return newpadlist;	199	return newpadlist;
206	}	200	}
207		201
208	#ifdef MAY_FLUSH	202	#ifdef MAY_FLUSH
209	STATIC AV *	203	STATIC void
210	free_padlist (AV *padlist)	204	free_padlist (AV *padlist)
211	{	205	{
212	/* may be during global destruction */	206	/* may be during global destruction */
213	if (SvREFCNT(padlist))	207	if (SvREFCNT(padlist))
214	{	208	{
…		…
279	#endif	273	#endif
280		274
281	#define SB do {	275	#define SB do {
282	#define SE } while (0)	276	#define SE } while (0)
283		277
284	#define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE	278	#define LOAD(state) load_state(aTHX_ (state));
285	#define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE	279	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
286		280
287	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	281	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE
288		282
289	static void	283	static void
290	load_state(pTHX_ Coro__State c)	284	load_state(pTHX_ Coro__State c)
291	{	285	{
292	PL_dowarn = c->dowarn;	286	PL_dowarn = c->dowarn;
		287	PL_in_eval = c->in_eval;
293		288
294	PL_curstackinfo = c->curstackinfo;	289	PL_curstackinfo = c->curstackinfo;
295	PL_curstack = c->curstack;	290	PL_curstack = c->curstack;
296	PL_mainstack = c->mainstack;	291	PL_mainstack = c->mainstack;
297	PL_stack_sp = c->stack_sp;	292	PL_stack_sp = c->stack_sp;
…		…
314	PL_savestack_max = c->savestack_max;	309	PL_savestack_max = c->savestack_max;
315	PL_retstack = c->retstack;	310	PL_retstack = c->retstack;
316	PL_retstack_ix = c->retstack_ix;	311	PL_retstack_ix = c->retstack_ix;
317	PL_retstack_max = c->retstack_max;	312	PL_retstack_max = c->retstack_max;
318	PL_curcop = c->curcop;	313	PL_curcop = c->curcop;
319	PL_start_env = c->start_env;
320	PL_top_env = c->top_env;	314	PL_top_env = c->top_env;
321		315
322	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	316	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
323	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	317	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
324	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	318	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
…		…
364		358
365	PUSHs (Nullsv);	359	PUSHs (Nullsv);
366	/* this loop was inspired by pp_caller */	360	/* this loop was inspired by pp_caller */
367	for (;;)	361	for (;;)
368	{	362	{
369	do	363	while (cxix >= 0)
370	{	364	{
371	PERL_CONTEXT *cx = &ccstk[cxix--];	365	PERL_CONTEXT *cx = &ccstk[cxix--];
372		366
373	if (CxTYPE(cx) == CXt_SUB)	367	if (CxTYPE(cx) == CXt_SUB)
374	{	368	{
…		…
400	/* I never used formats, so how should I know how these are implemented? */	394	/* I never used formats, so how should I know how these are implemented? */
401	/* my bold guess is as a simple, plain sub... */	395	/* my bold guess is as a simple, plain sub... */
402	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	396	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
403	}	397	}
404	}	398	}
405	while (cxix >= 0);
406		399
407	if (top_si->si_type == PERLSI_MAIN)	400	if (top_si->si_type == PERLSI_MAIN)
408	break;	401	break;
409		402
410	top_si = top_si->si_prev;	403	top_si = top_si->si_prev;
…		…
417		410
418	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	411	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
419	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	412	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
420	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	413	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
421		414
422	/* I have not the slightest idea of why av_reify is necessary */
423	/* but if it's missing the defav contents magically get replaced sometimes */
424	if (c->defav)
425	av_reify (c->defav);
426
427	c->dowarn = PL_dowarn;	415	c->dowarn = PL_dowarn;
		416	c->in_eval = PL_in_eval;
428		417
429	c->curstackinfo = PL_curstackinfo;	418	c->curstackinfo = PL_curstackinfo;
430	c->curstack = PL_curstack;	419	c->curstack = PL_curstack;
431	c->mainstack = PL_mainstack;	420	c->mainstack = PL_mainstack;
432	c->stack_sp = PL_stack_sp;	421	c->stack_sp = PL_stack_sp;
…		…
449	c->savestack_max = PL_savestack_max;	438	c->savestack_max = PL_savestack_max;
450	c->retstack = PL_retstack;	439	c->retstack = PL_retstack;
451	c->retstack_ix = PL_retstack_ix;	440	c->retstack_ix = PL_retstack_ix;
452	c->retstack_max = PL_retstack_max;	441	c->retstack_max = PL_retstack_max;
453	c->curcop = PL_curcop;	442	c->curcop = PL_curcop;
454	c->start_env = PL_start_env;
455	c->top_env = PL_top_env;	443	c->top_env = PL_top_env;
456	}	444	}
457		445
458	/*	446	/*
459	* allocate various perl stacks. This is an exact copy	447	* allocate various perl stacks. This is an exact copy
…		…
502	* still there is a memleak of 128 bytes...	490	* still there is a memleak of 128 bytes...
503	*/	491	*/
504	STATIC void	492	STATIC void
505	destroy_stacks(pTHX)	493	destroy_stacks(pTHX)
506	{	494	{
		495	if (!IN_DESTRUCT)
		496	{
507	/* is this ugly, I ask? */	497	/* is this ugly, I ask? */
508	while (PL_scopestack_ix)	498	while (PL_scopestack_ix)
509	LEAVE;	499	LEAVE;
510		500
511	/* sure it is, but more important: is it correct?? :/ */	501	/* sure it is, but more important: is it correct?? :/ */
512	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */	502	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
513	FREETMPS;	503	FREETMPS;
		504	}
514		505
515	while (PL_curstackinfo->si_next)	506	while (PL_curstackinfo->si_next)
516	PL_curstackinfo = PL_curstackinfo->si_next;	507	PL_curstackinfo = PL_curstackinfo->si_next;
517		508
518	while (PL_curstackinfo)	509	while (PL_curstackinfo)
…		…
523	dSP;	514	dSP;
524	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	515	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
525	PUTBACK; /* possibly superfluous */	516	PUTBACK; /* possibly superfluous */
526	}	517	}
527		518
		519	if (!IN_DESTRUCT)
		520	{
528	dounwind(-1);	521	dounwind(-1);
529
530	SvREFCNT_dec(PL_curstackinfo->si_stack);	522	SvREFCNT_dec(PL_curstackinfo->si_stack);
		523	}
		524
531	Safefree(PL_curstackinfo->si_cxstack);	525	Safefree(PL_curstackinfo->si_cxstack);
532	Safefree(PL_curstackinfo);	526	Safefree(PL_curstackinfo);
533	PL_curstackinfo = p;	527	PL_curstackinfo = p;
534	}	528	}
535		529
…		…
550	stack->refcnt = 1;	544	stack->refcnt = 1;
551	stack->usecnt = 1;	545	stack->usecnt = 1;
552	stack->gencnt = ctx->gencnt = 0;	546	stack->gencnt = ctx->gencnt = 0;
553	if (alloc)	547	if (alloc)
554	{	548	{
555	#ifdef HAVE_MMAP	549	#if HAVE_MMAP
556	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	550	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */
557	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANON, 0, 0);	551	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
558	if (stack->sptr == (void *)-1)	552	if (stack->sptr == (void *)-1)
559	#endif	553	#endif
560	{	554	{
561	/FIXME//D//* reasonable stack size! */	555	/FIXME//D//* reasonable stack size! */
562	stack->ssize = -4096 * sizeof (long);	556	stack->ssize = -4096 * sizeof (long);
…		…
603	dSP;	597	dSP;
604	Coro__State ctx = (Coro__State)arg;	598	Coro__State ctx = (Coro__State)arg;
605	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	599	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);
606		600
607	coro_init_stacks (aTHX);	601	coro_init_stacks (aTHX);
608	JMPENV_BOOTSTRAP;
609	SPAGAIN;
610
611	/PL_curcop = 0;/	602	/PL_curcop = 0;/
		603	/PL_in_eval = PL_in_eval;/ /* inherit */
612	SvREFCNT_dec (GvAV (PL_defgv));	604	SvREFCNT_dec (GvAV (PL_defgv));
613	GvAV (PL_defgv) = ctx->args;	605	GvAV (PL_defgv) = ctx->args;
614		606
		607	SPAGAIN;
		608
615	if (ctx->stack)	609	if (ctx->stack)
616	{	610	{
617	ctx->cursp = 0;	611	ctx->cursp = 0;
618		612
619	PUSHMARK(SP);	613	PUSHMARK(SP);
620	PUTBACK;	614	PUTBACK;
621	(void) call_sv (sub_init, G_VOID\|G_NOARGS);	615	(void) call_sv (sub_init, G_VOID\|G_NOARGS\|G_EVAL);
		616
		617	if (SvTRUE (ERRSV))
		618	croak (NULL);
		619	else
622	croak ("FATAL: CCTXT coroutine returned!");	620	croak ("FATAL: CCTXT coroutine returned!");
623	}	621	}
624	else	622	else
625	{	623	{
626	UNOP myop;	624	UNOP myop;
627		625
…		…
639	* that doesn't matter, though, since it is only	637	* that doesn't matter, though, since it is only
640	* pp_nextstate and we never return...	638	* pp_nextstate and we never return...
641	* ah yes, and I don't care anyways ;)	639	* ah yes, and I don't care anyways ;)
642	*/	640	*/
643	PUTBACK;	641	PUTBACK;
644	PL_op = pp_entersub();	642	PL_op = PL_ppaddr[OP_ENTERSUB]();
645	SPAGAIN;	643	SPAGAIN;
646		644
647	ENTER; /* necessary e.g. for dounwind */	645	ENTER; /* necessary e.g. for dounwind */
648	}	646	}
649	}	647	}
…		…
653	{	651	{
654	/*	652	/*
655	* this is a _very_ stripped down perl interpreter ;)	653	* this is a _very_ stripped down perl interpreter ;)
656	*/	654	*/
657	Coro__State ctx = (Coro__State)arg;	655	Coro__State ctx = (Coro__State)arg;
		656	JMPENV coro_start_env;
		657
		658	/* same as JMPENV_BOOTSTRAP */
		659	Zero(&coro_start_env, 1, JMPENV);
		660	coro_start_env.je_ret = -1;
		661	coro_start_env.je_mustcatch = TRUE;
		662	PL_top_env = &coro_start_env;
658		663
659	ctx->cursp = 0;	664	ctx->cursp = 0;
660	PL_op = PL_op->op_next;	665	PL_op = PL_op->op_next;
661	CALLRUNOPS(aTHX);	666	CALLRUNOPS(aTHX);
662	/NORETURN/	667
663	abort ();	668	abort ();
664	}	669	}
665		670
666	STATIC void	671	STATIC void
667	transfer(pTHX_ struct coro prev, struct coro next, int flags)	672	transfer(pTHX_ struct coro prev, struct coro next, int flags)
668	{	673	{
669	dSP;
670	dSTACKLEVEL;	674	dSTACKLEVEL;
		675	static struct coro *xnext;
671		676
672	if (prev != next)	677	if (prev != next)
673	{	678	{
		679	xnext = next;
		680
674	if (next->mainstack)	681	if (next->mainstack)
675	{	682	{
676	SAVE (prev, flags);	683	SAVE (prev, flags);
677	LOAD (next);	684	LOAD (next);
678		685
…		…
701	continue_coro, (void *)next,	708	continue_coro, (void *)next,
702	next->stack->sptr, labs (next->stack->ssize));	709	next->stack->sptr, labs (next->stack->ssize));
703	}	710	}
704		711
705	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	712	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		713	/* don't add any code here */
706	}	714	}
707		715
708	}	716	}
709	else if (next->tmps_ix == -2)	717	else if (next->tmps_ix == -2)
710	croak ("tried to transfer to running coroutine");	718	croak ("tried to transfer to running coroutine");
…		…
731	allocate_stack (next, 1);	739	allocate_stack (next, 1);
732	coro_create (&(next->stack->cctx),	740	coro_create (&(next->stack->cctx),
733	setup_coro, (void *)next,	741	setup_coro, (void *)next,
734	next->stack->sptr, labs (next->stack->ssize));	742	next->stack->sptr, labs (next->stack->ssize));
735	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	743	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		744	/* don't add any code here */
736	}	745	}
737	}	746	}
738	else	747	else
739	setup_coro (next);	748	setup_coro (next);
740	}	749	}
741	}
742		750
		751	/*
		752	* xnext is now either prev or next, depending on wether
		753	* we switched the c stack or not. that's why I use a global
		754	* variable, that should become thread-specific at one point.
		755	*/
743	next->cursp = stacklevel;	756	xnext->cursp = stacklevel;
		757	}
		758
		759	if (coro_mortal)
		760	{
		761	SvREFCNT_dec (coro_mortal);
		762	coro_mortal = 0;
		763	}
		764	}
		765
		766	#define SV_CORO(sv,func) \
		767	do { \
		768	if (SvROK (sv)) \
		769	sv = SvRV (sv); \
		770	\
		771	if (SvTYPE(sv) == SVt_PVHV) \
		772	{ \
		773	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		774	\
		775	if (!he) \
		776	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		777	\
		778	(sv) = SvRV (HeVAL(he)); \
		779	} \
		780	\
		781	/* must also be changed inside Coro::Cont::yield */ \
		782	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \
		783	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
		784	\
		785	} while(0)
		786
		787	#define SvSTATE(sv) (struct coro *)SvIV (sv)
		788
		789	static void
		790	api_transfer(pTHX_ SV prev, SV next, int flags)
		791	{
		792	SV_CORO (prev, "Coro::transfer");
		793	SV_CORO (next, "Coro::transfer");
		794
		795	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);
		796	}
		797
		798	/ Coro ******************************************************************/
		799
		800	#define PRIO_MAX 3
		801	#define PRIO_HIGH 1
		802	#define PRIO_NORMAL 0
		803	#define PRIO_LOW -1
		804	#define PRIO_IDLE -3
		805	#define PRIO_MIN -4
		806
		807	/* for Coro.pm */
		808	static GV coro_current, coro_idle;
		809	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
		810	static int coro_nready;
		811
		812	static void
		813	coro_enq (SV *sv)
		814	{
		815	if (SvTYPE (sv) == SVt_PVHV)
		816	{
		817	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
		818	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		819
		820	prio = prio > PRIO_MAX ? PRIO_MAX
		821	: prio < PRIO_MIN ? PRIO_MIN
		822	: prio;
		823
		824	av_push (coro_ready [prio - PRIO_MIN], sv);
		825	coro_nready++;
		826
		827	return;
		828	}
		829
		830	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		831	}
		832
		833	static SV *
		834	coro_deq (int min_prio)
		835	{
		836	int prio = PRIO_MAX - PRIO_MIN;
		837
		838	min_prio -= PRIO_MIN;
		839	if (min_prio < 0)
		840	min_prio = 0;
		841
		842	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
		843	if (av_len (coro_ready[prio]) >= 0)
		844	{
		845	coro_nready--;
		846	return av_shift (coro_ready[prio]);
		847	}
		848
		849	return 0;
		850	}
		851
		852	static void
		853	api_ready (SV *coro)
		854	{
		855	if (SvROK (coro))
		856	coro = SvRV (coro);
		857
		858	coro_enq (SvREFCNT_inc (coro));
		859	}
		860
		861	static void
		862	api_schedule (void)
		863	{
		864	SV prev, next;
		865
		866	prev = SvRV (GvSV (coro_current));
		867	next = coro_deq (PRIO_MIN);
		868
		869	if (!next)
		870	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
		871
		872	/* free this only after the transfer */
		873	coro_mortal = prev;
		874	SV_CORO (prev, "Coro::schedule");
		875
		876	SvRV (GvSV (coro_current)) = next;
		877
		878	SV_CORO (next, "Coro::schedule");
		879
		880	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
		881	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
		882	}
		883
		884	static void
		885	api_cede (void)
		886	{
		887	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
		888
		889	api_schedule ();
744	}	890	}
745		891
746	MODULE = Coro::State PACKAGE = Coro::State	892	MODULE = Coro::State PACKAGE = Coro::State
747		893
748	PROTOTYPES: ENABLE	894	PROTOTYPES: ENABLE
…		…
760		906
761	if (!padlist_cache)	907	if (!padlist_cache)
762	padlist_cache = newHV ();	908	padlist_cache = newHV ();
763		909
764	main_mainstack = PL_mainstack;	910	main_mainstack = PL_mainstack;
		911
		912	coroapi.ver = CORO_API_VERSION;
		913	coroapi.transfer = api_transfer;
765	}	914	}
766		915
767	Coro::State	916	Coro::State
768	_newprocess(args)	917	_newprocess(args)
769	SV * args	918	SV * args
…		…
783	RETVAL = coro;	932	RETVAL = coro;
784	OUTPUT:	933	OUTPUT:
785	RETVAL	934	RETVAL
786		935
787	void	936	void
788	transfer(prev, next, flags = TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK)	937	transfer(prev, next, flags)
789	Coro::State_or_hashref prev	938	SV *prev
790	Coro::State_or_hashref next	939	SV *next
791	int flags	940	int flags
792	PROTOTYPE: @	941	PROTOTYPE: @
793	CODE:	942	CODE:
		943	PUTBACK;
		944	SV_CORO (next, "Coro::transfer");
		945	SV_CORO (prev, "Coro::transfer");
794	transfer (aTHX_ prev, next, flags);	946	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
		947	SPAGAIN;
795		948
796	void	949	void
797	DESTROY(coro)	950	DESTROY(coro)
798	Coro::State coro	951	Coro::State coro
799	CODE:	952	CODE:
800		953
801	if (coro->mainstack && coro->mainstack != main_mainstack)	954	if (coro->mainstack && coro->mainstack != main_mainstack)
802	{	955	{
803	struct coro temp;	956	struct coro temp;
804		957
		958	PUTBACK;
805	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	959	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);
806	LOAD(aTHX_ coro);	960	LOAD(aTHX_ coro);
		961	SPAGAIN;
807		962
808	destroy_stacks (aTHX);	963	destroy_stacks (aTHX);
809		964
810	LOAD((&temp)); /* this will get rid of defsv etc.. */	965	LOAD((&temp)); /* this will get rid of defsv etc.. */
		966	SPAGAIN;
811		967
812	coro->mainstack = 0;	968	coro->mainstack = 0;
813	}	969	}
814		970
815	deallocate_stack (coro);	971	deallocate_stack (coro);
…		…
821	CODE:	977	CODE:
822	#ifdef MAY_FLUSH	978	#ifdef MAY_FLUSH
823	flush_padlist_cache ();	979	flush_padlist_cache ();
824	#endif	980	#endif
825		981
		982	void
		983	_exit(code)
		984	int code
		985	PROTOTYPE: $
		986	CODE:
		987	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
		988	_exit (code);
		989	#else
		990	signal (SIGTERM, SIG_DFL);
		991	raise (SIGTERM);
		992	exit (code);
		993	#endif
		994
826	MODULE = Coro::State PACKAGE = Coro::Cont	995	MODULE = Coro::State PACKAGE = Coro::Cont
827		996
828	# this is slightly dirty	997	# this is slightly dirty (should expose a c-level api)
829		998
830	void	999	void
831	yield(...)	1000	yield(...)
832	PROTOTYPE: @	1001	PROTOTYPE: @
833	CODE:	1002	CODE:
…		…
851	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1020	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));
852	SvREFCNT_dec (sv);	1021	SvREFCNT_dec (sv);
853		1022
854	transfer(aTHX_ prev, next, 0);	1023	transfer(aTHX_ prev, next, 0);
855		1024
		1025	MODULE = Coro::State PACKAGE = Coro
		1026
		1027	# this is slightly dirty (should expose a c-level api)
		1028
		1029	BOOT:
		1030	{
		1031	int i;
		1032	HV *stash = gv_stashpv ("Coro", TRUE);
		1033
		1034	newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));
		1035	newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
		1036	newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
		1037	newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));
		1038	newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
		1039	newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));
		1040
		1041	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
		1042	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
		1043
		1044	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
		1045	coro_ready[i] = newAV ();
		1046
		1047	{
		1048	SV *sv = perl_get_sv("Coro::API", 1);
		1049
		1050	coroapi.schedule = api_schedule;
		1051	coroapi.cede = api_cede;
		1052	coroapi.ready = api_ready;
		1053	coroapi.nready = &coro_nready;
		1054	coroapi.current = coro_current;
		1055
		1056	GCoroAPI = &coroapi;
		1057	sv_setiv(sv, (IV)&coroapi);
		1058	SvREADONLY_on(sv);
		1059	}
		1060	}
		1061
		1062	void
		1063	ready(self)
		1064	SV * self
		1065	PROTOTYPE: $
		1066	CODE:
		1067	api_ready (self);
		1068
		1069	int
		1070	nready(...)
		1071	PROTOTYPE:
		1072	CODE:
		1073	RETVAL = coro_nready;
		1074	OUTPUT:
		1075	RETVAL
		1076
		1077	void
		1078	schedule(...)
		1079	PROTOTYPE:
		1080	CODE:
		1081	api_schedule ();
		1082
		1083	void
		1084	cede(...)
		1085	PROTOTYPE:
		1086	CODE:
		1087	api_cede ();
		1088

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Comparing Coro/Coro/State.xs (file contents): Revision 1.18 by root, Thu Jul 26 03:46:15 2001 UTC vs. Revision 1.42 by root, Mon Dec 31 20:41:45 2001 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.18 by root, Thu Jul 26 03:46:15 2001 UTC vs.
Revision 1.42 by root, Mon Dec 31 20:41:45 2001 UTC