[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 1.39 by root, Sun Nov 25 20:04:05 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 */
…		…
53		46
54	void *sptr;	47	void *sptr;
55	long ssize; /* positive == mmap, otherwise malloc */	48	long ssize; /* positive == mmap, otherwise malloc */
56	} coro_stack;	49	} coro_stack;
57		50
58	static coro_stack main_stack = { 1, 0, 0 };
59
60	struct coro {	51	struct coro {
61	/* the optional C context */	52	/* the optional C context */
62	coro_stack *stack;	53	coro_stack *stack;
63	void *cursp;	54	void *cursp;
64	int gencnt;	55	int gencnt;
65		56
66	/* optionally saved, might be zero */	57	/* optionally saved, might be zero */
67	AV *defav;	58	AV *defav;
68	SV *defsv;	59	SV *defsv;
69	SV *errsv;	60	SV *errsv;
		61	/* TODO: PL_pmop might be nice && effortless to save. */
70		62
71	/* saved global state not related to stacks */	63	/* saved global state not related to stacks */
72	U8 dowarn;	64	U8 dowarn;
		65	I32 in_eval;
73		66
74	/* the stacks and related info (callchain etc..) */	67	/* the stacks and related info (callchain etc..) */
75	PERL_SI *curstackinfo;	68	PERL_SI *curstackinfo;
76	AV *curstack;	69	AV *curstack;
77	AV *mainstack;	70	AV *mainstack;
…		…
95	I32 savestack_max;	88	I32 savestack_max;
96	OP **retstack;	89	OP **retstack;
97	I32 retstack_ix;	90	I32 retstack_ix;
98	I32 retstack_max;	91	I32 retstack_max;
99	COP *curcop;	92	COP *curcop;
100	JMPENV start_env;
101	JMPENV *top_env;	93	JMPENV *top_env;
102		94
103	/* data associated with this coroutine (initial args) */	95	/* data associated with this coroutine (initial args) */
104	AV *args;	96	AV *args;
105	};	97	};
…		…
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;
		107	static SV coro_mortal; / will be freed after next transfer */
115		108
116	/* mostly copied from op.c:cv_clone2 */	109	/* mostly copied from op.c:cv_clone2 */
117	STATIC AV *	110	STATIC AV *
118	clone_padlist (AV *protopadlist)	111	clone_padlist (AV *protopadlist)
119	{	112	{
…		…
206		199
207	return newpadlist;	200	return newpadlist;
208	}	201	}
209		202
210	#ifdef MAY_FLUSH	203	#ifdef MAY_FLUSH
211	STATIC AV *	204	STATIC void
212	free_padlist (AV *padlist)	205	free_padlist (AV *padlist)
213	{	206	{
214	/* may be during global destruction */	207	/* may be during global destruction */
215	if (SvREFCNT(padlist))	208	if (SvREFCNT(padlist))
216	{	209	{
…		…
281	#endif	274	#endif
282		275
283	#define SB do {	276	#define SB do {
284	#define SE } while (0)	277	#define SE } while (0)
285		278
286	#define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE	279	#define LOAD(state) load_state(aTHX_ (state));
287	#define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE	280	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
288		281
289	#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
290		283
291	static void	284	static void
292	load_state(pTHX_ Coro__State c)	285	load_state(pTHX_ Coro__State c)
293	{	286	{
294	PL_dowarn = c->dowarn;	287	PL_dowarn = c->dowarn;
		288	PL_in_eval = c->in_eval;
295		289
296	PL_curstackinfo = c->curstackinfo;	290	PL_curstackinfo = c->curstackinfo;
297	PL_curstack = c->curstack;	291	PL_curstack = c->curstack;
298	PL_mainstack = c->mainstack;	292	PL_mainstack = c->mainstack;
299	PL_stack_sp = c->stack_sp;	293	PL_stack_sp = c->stack_sp;
…		…
316	PL_savestack_max = c->savestack_max;	310	PL_savestack_max = c->savestack_max;
317	PL_retstack = c->retstack;	311	PL_retstack = c->retstack;
318	PL_retstack_ix = c->retstack_ix;	312	PL_retstack_ix = c->retstack_ix;
319	PL_retstack_max = c->retstack_max;	313	PL_retstack_max = c->retstack_max;
320	PL_curcop = c->curcop;	314	PL_curcop = c->curcop;
321	PL_start_env = c->start_env;
322	PL_top_env = c->top_env;	315	PL_top_env = c->top_env;
323		316
324	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	317	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
325	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	318	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
326	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	319	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
…		…
366		359
367	PUSHs (Nullsv);	360	PUSHs (Nullsv);
368	/* this loop was inspired by pp_caller */	361	/* this loop was inspired by pp_caller */
369	for (;;)	362	for (;;)
370	{	363	{
371	do	364	while (cxix >= 0)
372	{	365	{
373	PERL_CONTEXT *cx = &ccstk[cxix--];	366	PERL_CONTEXT *cx = &ccstk[cxix--];
374		367
375	if (CxTYPE(cx) == CXt_SUB)	368	if (CxTYPE(cx) == CXt_SUB)
376	{	369	{
…		…
402	/* I never used formats, so how should I know how these are implemented? */	395	/* I never used formats, so how should I know how these are implemented? */
403	/* my bold guess is as a simple, plain sub... */	396	/* my bold guess is as a simple, plain sub... */
404	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	397	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
405	}	398	}
406	}	399	}
407	while (cxix >= 0);
408		400
409	if (top_si->si_type == PERLSI_MAIN)	401	if (top_si->si_type == PERLSI_MAIN)
410	break;	402	break;
411		403
412	top_si = top_si->si_prev;	404	top_si = top_si->si_prev;
…		…
419		411
420	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	412	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
421	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	413	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
422	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	414	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
423		415
424	/* I have not the slightest idea of why av_reify is necessary */
425	/* but if it's missing the defav contents magically get replaced sometimes */
426	if (c->defav)
427	av_reify (c->defav);
428
429	c->dowarn = PL_dowarn;	416	c->dowarn = PL_dowarn;
		417	c->in_eval = PL_in_eval;
430		418
431	c->curstackinfo = PL_curstackinfo;	419	c->curstackinfo = PL_curstackinfo;
432	c->curstack = PL_curstack;	420	c->curstack = PL_curstack;
433	c->mainstack = PL_mainstack;	421	c->mainstack = PL_mainstack;
434	c->stack_sp = PL_stack_sp;	422	c->stack_sp = PL_stack_sp;
…		…
451	c->savestack_max = PL_savestack_max;	439	c->savestack_max = PL_savestack_max;
452	c->retstack = PL_retstack;	440	c->retstack = PL_retstack;
453	c->retstack_ix = PL_retstack_ix;	441	c->retstack_ix = PL_retstack_ix;
454	c->retstack_max = PL_retstack_max;	442	c->retstack_max = PL_retstack_max;
455	c->curcop = PL_curcop;	443	c->curcop = PL_curcop;
456	c->start_env = PL_start_env;
457	c->top_env = PL_top_env;	444	c->top_env = PL_top_env;
458	}	445	}
459		446
460	/*	447	/*
461	* allocate various perl stacks. This is an exact copy	448	* allocate various perl stacks. This is an exact copy
…		…
504	* still there is a memleak of 128 bytes...	491	* still there is a memleak of 128 bytes...
505	*/	492	*/
506	STATIC void	493	STATIC void
507	destroy_stacks(pTHX)	494	destroy_stacks(pTHX)
508	{	495	{
		496	if (!IN_DESTRUCT)
		497	{
509	/* is this ugly, I ask? */	498	/* is this ugly, I ask? */
510	while (PL_scopestack_ix)	499	while (PL_scopestack_ix)
511	LEAVE;	500	LEAVE;
512		501
513	/* sure it is, but more important: is it correct?? :/ */	502	/* sure it is, but more important: is it correct?? :/ */
514	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */	503	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
515	FREETMPS;	504	FREETMPS;
		505	}
516		506
517	while (PL_curstackinfo->si_next)	507	while (PL_curstackinfo->si_next)
518	PL_curstackinfo = PL_curstackinfo->si_next;	508	PL_curstackinfo = PL_curstackinfo->si_next;
519		509
520	while (PL_curstackinfo)	510	while (PL_curstackinfo)
…		…
525	dSP;	515	dSP;
526	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	516	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
527	PUTBACK; /* possibly superfluous */	517	PUTBACK; /* possibly superfluous */
528	}	518	}
529		519
		520	if (!IN_DESTRUCT)
		521	{
530	dounwind(-1);	522	dounwind(-1);
531
532	SvREFCNT_dec(PL_curstackinfo->si_stack);	523	SvREFCNT_dec(PL_curstackinfo->si_stack);
		524	}
		525
533	Safefree(PL_curstackinfo->si_cxstack);	526	Safefree(PL_curstackinfo->si_cxstack);
534	Safefree(PL_curstackinfo);	527	Safefree(PL_curstackinfo);
535	PL_curstackinfo = p;	528	PL_curstackinfo = p;
536	}	529	}
537		530
…		…
552	stack->refcnt = 1;	545	stack->refcnt = 1;
553	stack->usecnt = 1;	546	stack->usecnt = 1;
554	stack->gencnt = ctx->gencnt = 0;	547	stack->gencnt = ctx->gencnt = 0;
555	if (alloc)	548	if (alloc)
556	{	549	{
557	#ifdef HAVE_MMAP	550	#if HAVE_MMAP
558	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	551	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */
559	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANON, 0, 0);	552	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
560	if (stack->sptr == (void *)-1)	553	if (stack->sptr == (void *)-1)
561	#endif	554	#endif
562	{	555	{
563	/FIXME//D//* reasonable stack size! */	556	/FIXME//D//* reasonable stack size! */
564	stack->ssize = -4096 * sizeof (long);	557	stack->ssize = -4096 * sizeof (long);
…		…
605	dSP;	598	dSP;
606	Coro__State ctx = (Coro__State)arg;	599	Coro__State ctx = (Coro__State)arg;
607	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	600	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);
608		601
609	coro_init_stacks (aTHX);	602	coro_init_stacks (aTHX);
610	JMPENV_BOOTSTRAP;
611	SPAGAIN;
612
613	/PL_curcop = 0;/	603	/PL_curcop = 0;/
		604	/PL_in_eval = PL_in_eval;/ /* inherit */
614	SvREFCNT_dec (GvAV (PL_defgv));	605	SvREFCNT_dec (GvAV (PL_defgv));
615	GvAV (PL_defgv) = ctx->args;	606	GvAV (PL_defgv) = ctx->args;
616		607
		608	SPAGAIN;
		609
617	if (ctx->stack)	610	if (ctx->stack)
618	{	611	{
619	ctx->cursp = 0;	612	ctx->cursp = 0;
620		613
621	PUSHMARK(SP);	614	PUSHMARK(SP);
622	PUTBACK;	615	PUTBACK;
623	(void) call_sv (sub_init, G_VOID\|G_NOARGS);	616	(void) call_sv (sub_init, G_VOID\|G_NOARGS\|G_EVAL);
		617
		618	if (SvTRUE (ERRSV))
		619	croak (NULL);
		620	else
624	croak ("FATAL: CCTXT coroutine returned!");	621	croak ("FATAL: CCTXT coroutine returned!");
625	}	622	}
626	else	623	else
627	{	624	{
628	UNOP myop;	625	UNOP myop;
629		626
…		…
655	{	652	{
656	/*	653	/*
657	* this is a _very_ stripped down perl interpreter ;)	654	* this is a _very_ stripped down perl interpreter ;)
658	*/	655	*/
659	Coro__State ctx = (Coro__State)arg;	656	Coro__State ctx = (Coro__State)arg;
		657	JMPENV coro_start_env;
		658
		659	/* same as JMPENV_BOOTSTRAP */
		660	Zero(&coro_start_env, 1, JMPENV);
		661	coro_start_env.je_ret = -1;
		662	coro_start_env.je_mustcatch = TRUE;
		663	PL_top_env = &coro_start_env;
660		664
661	ctx->cursp = 0;	665	ctx->cursp = 0;
662	PL_op = PL_op->op_next;	666	PL_op = PL_op->op_next;
663	CALLRUNOPS(aTHX);	667	CALLRUNOPS(aTHX);
664	/NORETURN/	668
665	abort ();	669	abort ();
666	}	670	}
667		671
668	STATIC void	672	STATIC void
669	transfer(pTHX_ struct coro prev, struct coro next, int flags)	673	transfer(pTHX_ struct coro prev, struct coro next, int flags)
670	{	674	{
671	dSP;
672	dSTACKLEVEL;	675	dSTACKLEVEL;
		676	static struct coro *xnext;
673		677
674	if (prev != next)	678	if (prev != next)
675	{	679	{
		680	xnext = next;
		681
676	if (next->mainstack)	682	if (next->mainstack)
677	{	683	{
678	SAVE (prev, flags);	684	SAVE (prev, flags);
679	LOAD (next);	685	LOAD (next);
680		686
…		…
703	continue_coro, (void *)next,	709	continue_coro, (void *)next,
704	next->stack->sptr, labs (next->stack->ssize));	710	next->stack->sptr, labs (next->stack->ssize));
705	}	711	}
706		712
707	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	713	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		714	/* don't add any code here */
708	}	715	}
709		716
710	}	717	}
711	else if (next->tmps_ix == -2)	718	else if (next->tmps_ix == -2)
712	croak ("tried to transfer to running coroutine");	719	croak ("tried to transfer to running coroutine");
…		…
733	allocate_stack (next, 1);	740	allocate_stack (next, 1);
734	coro_create (&(next->stack->cctx),	741	coro_create (&(next->stack->cctx),
735	setup_coro, (void *)next,	742	setup_coro, (void *)next,
736	next->stack->sptr, labs (next->stack->ssize));	743	next->stack->sptr, labs (next->stack->ssize));
737	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	744	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		745	/* don't add any code here */
738	}	746	}
739	}	747	}
740	else	748	else
741	setup_coro (next);	749	setup_coro (next);
742	}	750	}
743	}
744		751
		752	/*
		753	* xnext is now either prev or next, depending on wether
		754	* we switched the c stack or not. that's why i use a global
		755	* variable, that should become thread-specific at one point.
		756	*/
745	next->cursp = stacklevel;	757	xnext->cursp = stacklevel;
		758	}
		759
		760	if (coro_mortal)
		761	{
		762	SvREFCNT_dec (coro_mortal);
		763	coro_mortal = 0;
		764	}
		765	}
		766
		767	#define SV_CORO(sv,func) \
		768	do { \
		769	if (SvROK (sv)) \
		770	sv = SvRV (sv); \
		771	\
		772	if (SvTYPE(sv) == SVt_PVHV) \
		773	{ \
		774	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		775	\
		776	if (!he) \
		777	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		778	\
		779	(sv) = SvRV (HeVAL(he)); \
		780	} \
		781	\
		782	/* must also be changed inside Coro::Cont::yield */ \
		783	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \
		784	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
		785	\
		786	} while(0)
		787
		788	#define SvSTATE(sv) (struct coro *)SvIV (sv)
		789
		790	static void
		791	api_transfer(pTHX_ SV prev, SV next, int flags)
		792	{
		793	SV_CORO (prev, "Coro::transfer");
		794	SV_CORO (next, "Coro::transfer");
		795
		796	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);
		797	}
		798
		799	/ Coro ******************************************************************/
		800
		801	#define PRIO_MAX 3
		802	#define PRIO_HIGH 1
		803	#define PRIO_NORMAL 0
		804	#define PRIO_LOW -1
		805	#define PRIO_IDLE -3
		806	#define PRIO_MIN -4
		807
		808	/* for Coro.pm */
		809	static GV coro_current, coro_idle;
		810	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
		811	static int coro_nready;
		812
		813	static void
		814	coro_enq (SV *sv)
		815	{
		816	if (SvTYPE (sv) == SVt_PVHV)
		817	{
		818	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
		819	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		820
		821	prio = prio > PRIO_MAX ? PRIO_MAX
		822	: prio < PRIO_MIN ? PRIO_MIN
		823	: prio;
		824
		825	av_push (coro_ready [prio - PRIO_MIN], sv);
		826	coro_nready++;
		827
		828	return;
		829	}
		830
		831	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		832	}
		833
		834	static SV *
		835	coro_deq (int min_prio)
		836	{
		837	int prio = PRIO_MAX - PRIO_MIN;
		838
		839	min_prio -= PRIO_MIN;
		840	if (min_prio < 0)
		841	min_prio = 0;
		842
		843	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
		844	if (av_len (coro_ready[prio]) >= 0)
		845	{
		846	coro_nready--;
		847	return av_shift (coro_ready[prio]);
		848	}
		849
		850	return 0;
		851	}
		852
		853	static void
		854	api_ready (SV *coro)
		855	{
		856	if (SvROK (coro))
		857	coro = SvRV (coro);
		858
		859	coro_enq (SvREFCNT_inc (coro));
		860	}
		861
		862	static void
		863	api_schedule (void)
		864	{
		865	SV prev, next;
		866
		867	prev = SvRV (GvSV (coro_current));
		868	next = coro_deq (PRIO_MIN);
		869
		870	if (!next)
		871	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
		872
		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 ();
746	}	890	}
747		891
748	MODULE = Coro::State PACKAGE = Coro::State	892	MODULE = Coro::State PACKAGE = Coro::State
749		893
750	PROTOTYPES: ENABLE	894	PROTOTYPES: ENABLE
…		…
762		906
763	if (!padlist_cache)	907	if (!padlist_cache)
764	padlist_cache = newHV ();	908	padlist_cache = newHV ();
765		909
766	main_mainstack = PL_mainstack;	910	main_mainstack = PL_mainstack;
		911
		912	coroapi.ver = CORO_API_VERSION;
		913	coroapi.transfer = api_transfer;
767	}	914	}
768		915
769	Coro::State	916	Coro::State
770	_newprocess(args)	917	_newprocess(args)
771	SV * args	918	SV * args
…		…
785	RETVAL = coro;	932	RETVAL = coro;
786	OUTPUT:	933	OUTPUT:
787	RETVAL	934	RETVAL
788		935
789	void	936	void
790	transfer(prev, next, flags = TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK)	937	transfer(prev, next, flags)
791	Coro::State_or_hashref prev	938	SV *prev
792	Coro::State_or_hashref next	939	SV *next
793	int flags	940	int flags
794	PROTOTYPE: @	941	PROTOTYPE: @
795	CODE:	942	CODE:
		943	PUTBACK;
		944	SV_CORO (next, "Coro::transfer");
		945	SV_CORO (prev, "Coro::transfer");
796	transfer (aTHX_ prev, next, flags);	946	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
		947	SPAGAIN;
797		948
798	void	949	void
799	DESTROY(coro)	950	DESTROY(coro)
800	Coro::State coro	951	Coro::State coro
801	CODE:	952	CODE:
802		953
803	if (coro->mainstack && coro->mainstack != main_mainstack)	954	if (coro->mainstack && coro->mainstack != main_mainstack)
804	{	955	{
805	struct coro temp;	956	struct coro temp;
806		957
		958	PUTBACK;
807	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	959	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);
808	LOAD(aTHX_ coro);	960	LOAD(aTHX_ coro);
		961	SPAGAIN;
809		962
810	destroy_stacks (aTHX);	963	destroy_stacks (aTHX);
811		964
812	LOAD((&temp)); /* this will get rid of defsv etc.. */	965	LOAD((&temp)); /* this will get rid of defsv etc.. */
		966	SPAGAIN;
813		967
814	coro->mainstack = 0;	968	coro->mainstack = 0;
815	}	969	}
816		970
817	deallocate_stack (coro);	971	deallocate_stack (coro);
…		…
823	CODE:	977	CODE:
824	#ifdef MAY_FLUSH	978	#ifdef MAY_FLUSH
825	flush_padlist_cache ();	979	flush_padlist_cache ();
826	#endif	980	#endif
827		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
828	MODULE = Coro::State PACKAGE = Coro::Cont	995	MODULE = Coro::State PACKAGE = Coro::Cont
829		996
830	# this is slightly dirty	997	# this is slightly dirty (should expose a c-level api)
831		998
832	void	999	void
833	yield(...)	1000	yield(...)
834	PROTOTYPE: @	1001	PROTOTYPE: @
835	CODE:	1002	CODE:
…		…
853	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)));
854	SvREFCNT_dec (sv);	1021	SvREFCNT_dec (sv);
855		1022
856	transfer(aTHX_ prev, next, 0);	1023	transfer(aTHX_ prev, next, 0);
857		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 1.17 by root, Wed Jul 25 14:01:46 2001 UTC vs. Revision 1.39 by root, Sun Nov 25 20:04:05 2001 UTC

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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 1.39 by root, Sun Nov 25 20:04:05 2001 UTC