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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.16 by root, Wed Jul 25 04:26:55 2001 UTC vs.
Revision 1.40 by root, Tue Nov 27 01:41:41 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 */
…		…
52	coro_context cctx;	45	coro_context cctx;
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
58	static coro_stack main_stack = { 1, 0, 0 };
59		50
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;
…		…
68	SV *defsv;	59	SV *defsv;
69	SV *errsv;	60	SV *errsv;
70		61
71	/* saved global state not related to stacks */	62	/* saved global state not related to stacks */
72	U8 dowarn;	63	U8 dowarn;
		64	I32 in_eval;
73		65
74	/* the stacks and related info (callchain etc..) */	66	/* the stacks and related info (callchain etc..) */
75	PERL_SI *curstackinfo;	67	PERL_SI *curstackinfo;
76	AV *curstack;	68	AV *curstack;
77	AV *mainstack;	69	AV *mainstack;
…		…
95	I32 savestack_max;	87	I32 savestack_max;
96	OP **retstack;	88	OP **retstack;
97	I32 retstack_ix;	89	I32 retstack_ix;
98	I32 retstack_max;	90	I32 retstack_max;
99	COP *curcop;	91	COP *curcop;
100	JMPENV start_env;	92	PMOP *curpm;
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 */	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;	603	PL_curpm = 0; /* segfault on first access */
611	SPAGAIN;
612
613	/PL_curcop = 0;/	604	/PL_curcop = 0;/
		605	/PL_in_eval = PL_in_eval;/ /* inherit */
614	SvREFCNT_dec (GvAV (PL_defgv));	606	SvREFCNT_dec (GvAV (PL_defgv));
615	GvAV (PL_defgv) = ctx->args;	607	GvAV (PL_defgv) = ctx->args;
616		608
		609	SPAGAIN;
		610
617	if (ctx->stack)	611	if (ctx->stack)
618	{	612	{
619	ctx->cursp = 0;	613	ctx->cursp = 0;
620		614
621	PUSHMARK(SP);	615	PUSHMARK(SP);
622	PUTBACK;	616	PUTBACK;
623	(void) call_sv (sub_init, G_VOID\|G_NOARGS);	617	(void) call_sv (sub_init, G_VOID\|G_NOARGS\|G_EVAL);
		618
		619	if (SvTRUE (ERRSV))
		620	croak (NULL);
		621	else
624	croak ("FATAL: CCTXT coroutine returned!");	622	croak ("FATAL: CCTXT coroutine returned!");
625	}	623	}
626	else	624	else
627	{	625	{
628	UNOP myop;	626	UNOP myop;
629		627
…		…
655	{	653	{
656	/*	654	/*
657	* this is a _very_ stripped down perl interpreter ;)	655	* this is a _very_ stripped down perl interpreter ;)
658	*/	656	*/
659	Coro__State ctx = (Coro__State)arg;	657	Coro__State ctx = (Coro__State)arg;
		658	JMPENV coro_start_env;
		659
		660	/* same as JMPENV_BOOTSTRAP */
		661	Zero(&coro_start_env, 1, JMPENV);
		662	coro_start_env.je_ret = -1;
		663	coro_start_env.je_mustcatch = TRUE;
		664	PL_top_env = &coro_start_env;
660		665
661	ctx->cursp = 0;	666	ctx->cursp = 0;
662	PL_op = PL_op->op_next;	667	PL_op = PL_op->op_next;
663	CALLRUNOPS(aTHX);	668	CALLRUNOPS(aTHX);
664	/NORETURN/	669
665	abort ();	670	abort ();
666	}	671	}
667		672
668	STATIC void	673	STATIC void
669	transfer(pTHX_ struct coro prev, struct coro next, int flags)	674	transfer(pTHX_ struct coro prev, struct coro next, int flags)
670	{	675	{
671	dSP;
672	dSTACKLEVEL;	676	dSTACKLEVEL;
		677	static struct coro *xnext;
673		678
674	if (prev != next)	679	if (prev != next)
675	{	680	{
		681	xnext = next;
		682
676	if (next->mainstack)	683	if (next->mainstack)
677	{	684	{
678	SAVE (prev, flags);	685	SAVE (prev, flags);
679	LOAD (next);	686	LOAD (next);
680		687
…		…
703	continue_coro, (void *)next,	710	continue_coro, (void *)next,
704	next->stack->sptr, labs (next->stack->ssize));	711	next->stack->sptr, labs (next->stack->ssize));
705	}	712	}
706		713
707	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	714	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		715	/* don't add any code here */
708	}	716	}
709		717
710	}	718	}
711	else if (next->tmps_ix == -2)	719	else if (next->tmps_ix == -2)
712	croak ("tried to transfer to running coroutine");	720	croak ("tried to transfer to running coroutine");
…		…
733	allocate_stack (next, 1);	741	allocate_stack (next, 1);
734	coro_create (&(next->stack->cctx),	742	coro_create (&(next->stack->cctx),
735	setup_coro, (void *)next,	743	setup_coro, (void *)next,
736	next->stack->sptr, labs (next->stack->ssize));	744	next->stack->sptr, labs (next->stack->ssize));
737	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	745	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		746	/* don't add any code here */
738	}	747	}
739	}	748	}
740	else	749	else
741	setup_coro (next);	750	setup_coro (next);
742	}	751	}
743	}
744		752
		753	/*
		754	* xnext is now either prev or next, depending on wether
		755	* we switched the c stack or not. that's why i use a global
		756	* variable, that should become thread-specific at one point.
		757	*/
745	next->cursp = stacklevel;	758	xnext->cursp = stacklevel;
		759	}
		760
		761	if (coro_mortal)
		762	{
		763	SvREFCNT_dec (coro_mortal);
		764	coro_mortal = 0;
		765	}
		766	}
		767
		768	#define SV_CORO(sv,func) \
		769	do { \
		770	if (SvROK (sv)) \
		771	sv = SvRV (sv); \
		772	\
		773	if (SvTYPE(sv) == SVt_PVHV) \
		774	{ \
		775	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		776	\
		777	if (!he) \
		778	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		779	\
		780	(sv) = SvRV (HeVAL(he)); \
		781	} \
		782	\
		783	/* must also be changed inside Coro::Cont::yield */ \
		784	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \
		785	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
		786	\
		787	} while(0)
		788
		789	#define SvSTATE(sv) (struct coro *)SvIV (sv)
		790
		791	static void
		792	api_transfer(pTHX_ SV prev, SV next, int flags)
		793	{
		794	SV_CORO (prev, "Coro::transfer");
		795	SV_CORO (next, "Coro::transfer");
		796
		797	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);
		798	}
		799
		800	/ Coro ******************************************************************/
		801
		802	#define PRIO_MAX 3
		803	#define PRIO_HIGH 1
		804	#define PRIO_NORMAL 0
		805	#define PRIO_LOW -1
		806	#define PRIO_IDLE -3
		807	#define PRIO_MIN -4
		808
		809	/* for Coro.pm */
		810	static GV coro_current, coro_idle;
		811	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
		812	static int coro_nready;
		813
		814	static void
		815	coro_enq (SV *sv)
		816	{
		817	if (SvTYPE (sv) == SVt_PVHV)
		818	{
		819	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
		820	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		821
		822	prio = prio > PRIO_MAX ? PRIO_MAX
		823	: prio < PRIO_MIN ? PRIO_MIN
		824	: prio;
		825
		826	av_push (coro_ready [prio - PRIO_MIN], sv);
		827	coro_nready++;
		828
		829	return;
		830	}
		831
		832	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		833	}
		834
		835	static SV *
		836	coro_deq (int min_prio)
		837	{
		838	int prio = PRIO_MAX - PRIO_MIN;
		839
		840	min_prio -= PRIO_MIN;
		841	if (min_prio < 0)
		842	min_prio = 0;
		843
		844	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
		845	if (av_len (coro_ready[prio]) >= 0)
		846	{
		847	coro_nready--;
		848	return av_shift (coro_ready[prio]);
		849	}
		850
		851	return 0;
		852	}
		853
		854	static void
		855	api_ready (SV *coro)
		856	{
		857	if (SvROK (coro))
		858	coro = SvRV (coro);
		859
		860	coro_enq (SvREFCNT_inc (coro));
		861	}
		862
		863	static void
		864	api_schedule (void)
		865	{
		866	SV prev, next;
		867
		868	prev = SvRV (GvSV (coro_current));
		869	next = coro_deq (PRIO_MIN);
		870
		871	if (!next)
		872	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
		873
		874	/* free this only after the transfer */
		875	coro_mortal = prev;
		876	SV_CORO (prev, "Coro::schedule");
		877
		878	SvRV (GvSV (coro_current)) = next;
		879
		880	SV_CORO (next, "Coro::schedule");
		881
		882	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
		883	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
		884	}
		885
		886	static void
		887	api_cede (void)
		888	{
		889	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
		890
		891	api_schedule ();
746	}	892	}
747		893
748	MODULE = Coro::State PACKAGE = Coro::State	894	MODULE = Coro::State PACKAGE = Coro::State
749		895
750	PROTOTYPES: ENABLE	896	PROTOTYPES: ENABLE
…		…
756	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	902	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
757		903
758	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	904	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
759	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	905	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
760	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	906	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
		907	newCONSTSUB (coro_state_stash, "SAVE_CURPM", newSViv (TRANSFER_SAVE_CURPM));
761	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	908	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
762		909
763	if (!padlist_cache)	910	if (!padlist_cache)
764	padlist_cache = newHV ();	911	padlist_cache = newHV ();
765		912
766	main_mainstack = PL_mainstack;	913	main_mainstack = PL_mainstack;
		914
		915	coroapi.ver = CORO_API_VERSION;
		916	coroapi.transfer = api_transfer;
767	}	917	}
768		918
769	Coro::State	919	Coro::State
770	_newprocess(args)	920	_newprocess(args)
771	SV * args	921	SV * args
…		…
785	RETVAL = coro;	935	RETVAL = coro;
786	OUTPUT:	936	OUTPUT:
787	RETVAL	937	RETVAL
788		938
789	void	939	void
790	transfer(prev, next, flags = TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK)	940	transfer(prev, next, flags)
791	Coro::State_or_hashref prev	941	SV *prev
792	Coro::State_or_hashref next	942	SV *next
793	int flags	943	int flags
794	PROTOTYPE: @	944	PROTOTYPE: @
795	CODE:	945	CODE:
		946	PUTBACK;
		947	SV_CORO (next, "Coro::transfer");
		948	SV_CORO (prev, "Coro::transfer");
796	transfer (aTHX_ prev, next, flags);	949	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
		950	SPAGAIN;
797		951
798	void	952	void
799	DESTROY(coro)	953	DESTROY(coro)
800	Coro::State coro	954	Coro::State coro
801	CODE:	955	CODE:
802		956
803	if (coro->mainstack && coro->mainstack != main_mainstack)	957	if (coro->mainstack && coro->mainstack != main_mainstack)
804	{	958	{
805	struct coro temp;	959	struct coro temp;
806		960
		961	PUTBACK;
807	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	962	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);
808	LOAD(aTHX_ coro);	963	LOAD(aTHX_ coro);
		964	SPAGAIN;
809		965
810	destroy_stacks (aTHX);	966	destroy_stacks (aTHX);
811		967
812	LOAD((&temp)); /* this will get rid of defsv etc.. */	968	LOAD((&temp)); /* this will get rid of defsv etc.. */
		969	SPAGAIN;
813		970
814	coro->mainstack = 0;	971	coro->mainstack = 0;
815	}	972	}
816		973
817	deallocate_stack (coro);	974	deallocate_stack (coro);
…		…
823	CODE:	980	CODE:
824	#ifdef MAY_FLUSH	981	#ifdef MAY_FLUSH
825	flush_padlist_cache ();	982	flush_padlist_cache ();
826	#endif	983	#endif
827		984
		985	void
		986	_exit(code)
		987	int code
		988	PROTOTYPE: $
		989	CODE:
		990	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
		991	_exit (code);
		992	#else
		993	signal (SIGTERM, SIG_DFL);
		994	raise (SIGTERM);
		995	exit (code);
		996	#endif
		997
828	MODULE = Coro::State PACKAGE = Coro::Cont	998	MODULE = Coro::State PACKAGE = Coro::Cont
829		999
830	# this is slightly dirty	1000	# this is slightly dirty (should expose a c-level api)
831		1001
832	void	1002	void
833	yield(...)	1003	yield(...)
834	PROTOTYPE: @	1004	PROTOTYPE: @
835	CODE:	1005	CODE:
…		…
853	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1023	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));
854	SvREFCNT_dec (sv);	1024	SvREFCNT_dec (sv);
855		1025
856	transfer(aTHX_ prev, next, 0);	1026	transfer(aTHX_ prev, next, 0);
857		1027
		1028	MODULE = Coro::State PACKAGE = Coro
		1029
		1030	# this is slightly dirty (should expose a c-level api)
		1031
		1032	BOOT:
		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
		1044	coro_current = gv_fetchpv ("Coro::current", 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	}
		1063	}
		1064
		1065	void
		1066	ready(self)
		1067	SV * self
		1068	PROTOTYPE: $
		1069	CODE:
		1070	api_ready (self);
		1071
		1072	int
		1073	nready(...)
		1074	PROTOTYPE:
		1075	CODE:
		1076	RETVAL = coro_nready;
		1077	OUTPUT:
		1078	RETVAL
		1079
		1080	void
		1081	schedule(...)
		1082	PROTOTYPE:
		1083	CODE:
		1084	api_schedule ();
		1085
		1086	void
		1087	cede(...)
		1088	PROTOTYPE:
		1089	CODE:
		1090	api_cede ();
		1091

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Comparing Coro/Coro/State.xs (file contents): Revision 1.16 by root, Wed Jul 25 04:26:55 2001 UTC vs. Revision 1.40 by root, Tue Nov 27 01:41:41 2001 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.16 by root, Wed Jul 25 04:26:55 2001 UTC vs.
Revision 1.40 by root, Tue Nov 27 01:41:41 2001 UTC