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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.144 by root, Sun Mar 4 11:45:23 2007 UTC vs.
Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
		2
		3	#define PERL_NO_GET_CONTEXT
2		4
3	#include "EXTERN.h"	5	#include "EXTERN.h"
4	#include "perl.h"	6	#include "perl.h"
5	#include "XSUB.h"	7	#include "XSUB.h"
6		8
124	I32 laststype;	126	I32 laststype;
125	int laststatval;	127	int laststatval;
126	Stat_t statcache;	128	Stat_t statcache;
127	};	129	};
128		130
		131	static size_t coro_stacksize = CORO_STACKSIZE;
129	static struct CoroAPI coroapi;	132	static struct CoroAPI coroapi;
130	static AV main_mainstack; / used to differentiate between $main and others */	133	static AV main_mainstack; / used to differentiate between $main and others */
131	static HV coro_state_stash, coro_stash;	134	static HV coro_state_stash, coro_stash;
132	static SV coro_mortal; / will be freed after next transfer */	135	static SV coro_mortal; / will be freed after next transfer */
133		136
…		…
138	typedef struct coro_cctx {	141	typedef struct coro_cctx {
139	struct coro_cctx *next;	142	struct coro_cctx *next;
140		143
141	/* the stack */	144	/* the stack */
142	void *sptr;	145	void *sptr;
143	ssize_t ssize; /* positive == mmap, otherwise malloc */	146	size_t ssize;
144		147
145	/* cpu state */	148	/* cpu state */
146	void idle_sp; / sp of top-level transfer/schedule/cede call */	149	void idle_sp; / sp of top-level transfer/schedule/cede call */
147	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */	150	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
148	JMPENV *top_env;	151	JMPENV *top_env;
149	coro_context cctx;	152	coro_context cctx;
150		153
151	int inuse;
152
153	#if CORO_USE_VALGRIND	154	#if CORO_USE_VALGRIND
154	int valgrind_id;	155	int valgrind_id;
155	#endif	156	#endif
		157	char inuse, mapped;
156	} coro_cctx;	158	} coro_cctx;
157		159
158	enum {	160	enum {
159	CF_RUNNING = 0x0001, /* coroutine is running */	161	CF_RUNNING = 0x0001, /* coroutine is running */
160	CF_READY = 0x0002, /* coroutine is ready */	162	CF_READY = 0x0002, /* coroutine is ready */
…		…
206	static int coro_nready;	208	static int coro_nready;
207		209
208	/ lowlevel stuff ********************************************************/	210	/ lowlevel stuff ********************************************************/
209		211
210	static AV *	212	static AV *
211	coro_clone_padlist (CV *cv)	213	coro_clone_padlist (pTHX_ CV *cv)
212	{	214	{
213	AV *padlist = CvPADLIST (cv);	215	AV *padlist = CvPADLIST (cv);
214	AV newpadlist, newpad;	216	AV newpadlist, newpad;
215		217
216	newpadlist = newAV ();	218	newpadlist = newAV ();
…		…
228		230
229	return newpadlist;	231	return newpadlist;
230	}	232	}
231		233
232	static void	234	static void
233	free_padlist (AV *padlist)	235	free_padlist (pTHX_ AV *padlist)
234	{	236	{
235	/* may be during global destruction */	237	/* may be during global destruction */
236	if (SvREFCNT (padlist))	238	if (SvREFCNT (padlist))
237	{	239	{
238	I32 i = AvFILLp (padlist);	240	I32 i = AvFILLp (padlist);
…		…
259	AV *padlist;	261	AV *padlist;
260	AV av = (AV )mg->mg_obj;	262	AV av = (AV )mg->mg_obj;
261		263
262	/* casting is fun. */	264	/* casting is fun. */
263	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	265	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
264	free_padlist (padlist);	266	free_padlist (aTHX_ padlist);
265		267
266	SvREFCNT_dec (av);	268	SvREFCNT_dec (av);
267		269
268	return 0;	270	return 0;
269	}	271	}
…		…
279	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	281	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
280	: 0	282	: 0
281		283
282	/* the next two functions merely cache the padlists */	284	/* the next two functions merely cache the padlists */
283	static void	285	static void
284	get_padlist (CV *cv)	286	get_padlist (pTHX_ CV *cv)
285	{	287	{
286	MAGIC *mg = CORO_MAGIC (cv);	288	MAGIC *mg = CORO_MAGIC (cv);
287	AV *av;	289	AV *av;
288		290
289	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	291	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
…		…
295	CV *cp = Perl_cv_clone (cv);	297	CV *cp = Perl_cv_clone (cv);
296	CvPADLIST (cv) = CvPADLIST (cp);	298	CvPADLIST (cv) = CvPADLIST (cp);
297	CvPADLIST (cp) = 0;	299	CvPADLIST (cp) = 0;
298	SvREFCNT_dec (cp);	300	SvREFCNT_dec (cp);
299	#else	301	#else
300	CvPADLIST (cv) = coro_clone_padlist (cv);	302	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
301	#endif	303	#endif
302	}	304	}
303	}	305	}
304		306
305	static void	307	static void
306	put_padlist (CV *cv)	308	put_padlist (pTHX_ CV *cv)
307	{	309	{
308	MAGIC *mg = CORO_MAGIC (cv);	310	MAGIC *mg = CORO_MAGIC (cv);
309	AV *av;	311	AV *av;
310		312
311	if (!mg)	313	if (!mg)
…		…
330	#define SE } while (0)	332	#define SE } while (0)
331		333
332	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	334	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
333		335
334	static void	336	static void
335	load_perl (Coro__State c)	337	load_perl (pTHX_ Coro__State c)
336	{	338	{
337	#define VAR(name,type) PL_ ## name = c->name;	339	#define VAR(name,type) PL_ ## name = c->name;
338	# include "state.h"	340	# include "state.h"
339	#undef VAR	341	#undef VAR
340		342
…		…
358	CV *cv;	360	CV *cv;
359		361
360	/* now do the ugly restore mess */	362	/* now do the ugly restore mess */
361	while ((cv = (CV *)POPs))	363	while ((cv = (CV *)POPs))
362	{	364	{
363	put_padlist (cv); /* mark this padlist as available */	365	put_padlist (aTHX_ cv); /* mark this padlist as available */
364	CvDEPTH (cv) = PTR2IV (POPs);	366	CvDEPTH (cv) = PTR2IV (POPs);
365	CvPADLIST (cv) = (AV *)POPs;	367	CvPADLIST (cv) = (AV *)POPs;
366	}	368	}
367		369
368	PUTBACK;	370	PUTBACK;
369	}	371	}
370	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D	372	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
371	}	373	}
372		374
373	static void	375	static void
374	save_perl (Coro__State c)	376	save_perl (pTHX_ Coro__State c)
375	{	377	{
376	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D	378	assert (!PL_comppad \|\| AvARRAY (PL_comppad));//D
377	{	379	{
378	dSP;	380	dSP;
379	I32 cxix = cxstack_ix;	381	I32 cxix = cxstack_ix;
…		…
404	PUSHs ((SV *)CvPADLIST (cv));	406	PUSHs ((SV *)CvPADLIST (cv));
405	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	407	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
406	PUSHs ((SV *)cv);	408	PUSHs ((SV *)cv);
407		409
408	CvDEPTH (cv) = 0;	410	CvDEPTH (cv) = 0;
409	get_padlist (cv);	411	get_padlist (aTHX_ cv);
410	}	412	}
411	}	413	}
412	}	414	}
413		415
414	if (top_si->si_type == PERLSI_MAIN)	416	if (top_si->si_type == PERLSI_MAIN)
…		…
440	*/	442	*/
441	#if CORO_PREFER_PERL_FUNCTIONS	443	#if CORO_PREFER_PERL_FUNCTIONS
442	# define coro_init_stacks init_stacks	444	# define coro_init_stacks init_stacks
443	#else	445	#else
444	static void	446	static void
445	coro_init_stacks ()	447	coro_init_stacks (pTHX)
446	{	448	{
447	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	449	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
448	PL_curstackinfo->si_type = PERLSI_MAIN;	450	PL_curstackinfo->si_type = PERLSI_MAIN;
449	PL_curstack = PL_curstackinfo->si_stack;	451	PL_curstack = PL_curstackinfo->si_stack;
450	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	452	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
…		…
484		486
485	/*	487	/*
486	* destroy the stacks, the callchain etc...	488	* destroy the stacks, the callchain etc...
487	*/	489	*/
488	static void	490	static void
489	coro_destroy_stacks ()	491	coro_destroy_stacks (pTHX)
490	{	492	{
491	if (!IN_DESTRUCT)	493	if (!IN_DESTRUCT)
492	{	494	{
493	/* restore all saved variables and stuff */	495	/* restore all saved variables and stuff */
494	LEAVE_SCOPE (0);	496	LEAVE_SCOPE (0);
…		…
530	}	532	}
531		533
532	/ coroutine stack handling **********************************************/	534	/ coroutine stack handling **********************************************/
533		535
534	static void	536	static void
535	setup_coro (struct coro *coro)	537	setup_coro (pTHX_ struct coro *coro)
536	{	538	{
537	/*	539	/*
538	* emulate part of the perl startup here.	540	* emulate part of the perl startup here.
539	*/	541	*/
540
541	coro_init_stacks ();	542	coro_init_stacks (aTHX);
542		543
543	PL_curcop = &PL_compiling;	544	PL_curcop = &PL_compiling;
544	PL_in_eval = EVAL_NULL;	545	PL_in_eval = EVAL_NULL;
545	PL_comppad = 0;	546	PL_comppad = 0;
546	PL_curpm = 0;	547	PL_curpm = 0;
…		…
569		570
570	ENTER; /* necessary e.g. for dounwind */	571	ENTER; /* necessary e.g. for dounwind */
571	}	572	}
572		573
573	static void	574	static void
574	free_coro_mortal ()	575	free_coro_mortal (pTHX)
575	{	576	{
576	if (coro_mortal)	577	if (coro_mortal)
577	{	578	{
578	SvREFCNT_dec (coro_mortal);	579	SvREFCNT_dec (coro_mortal);
579	coro_mortal = 0;	580	coro_mortal = 0;
580	}	581	}
581	}	582	}
582		583
583	/* inject a fake call to Coro::State::_cctx_init into the execution */	584	/* inject a fake call to Coro::State::_cctx_init into the execution */
584	static void NOINLINE	585	static void NOINLINE
585	prepare_cctx (coro_cctx *cctx)	586	prepare_cctx (pTHX_ coro_cctx *cctx)
586	{	587	{
587	dSP;	588	dSP;
588	LOGOP myop;	589	LOGOP myop;
589		590
590	Zero (&myop, 1, LOGOP);	591	Zero (&myop, 1, LOGOP);
…		…
602	}	603	}
603		604
604	static void	605	static void
605	coro_run (void *arg)	606	coro_run (void *arg)
606	{	607	{
		608	dTHX;
		609
607	/* coro_run is the alternative tail of transfer(), so unlock here. */	610	/* coro_run is the alternative tail of transfer(), so unlock here. */
608	UNLOCK;	611	UNLOCK;
609		612
610	/*	613	/*
611	* this is a _very_ stripped down perl interpreter ;)	614	* this is a _very_ stripped down perl interpreter ;)
612	*/	615	*/
613	PL_top_env = &PL_start_env;	616	PL_top_env = &PL_start_env;
614		617
615	/* inject call to cctx_init */	618	/* inject call to cctx_init */
616	prepare_cctx ((coro_cctx *)arg);	619	prepare_cctx (aTHX_ (coro_cctx *)arg);
617		620
618	/* somebody will hit me for both perl_run and PL_restartop */	621	/* somebody will hit me for both perl_run and PL_restartop */
619	PL_restartop = PL_op;	622	PL_restartop = PL_op;
620	perl_run (PL_curinterp);	623	perl_run (PL_curinterp);
621		624
…		…
625		628
626	static coro_cctx *	629	static coro_cctx *
627	cctx_new ()	630	cctx_new ()
628	{	631	{
629	coro_cctx *cctx;	632	coro_cctx *cctx;
		633	void *stack_start;
		634	size_t stack_size;
630		635
631	++cctx_count;	636	++cctx_count;
632		637
633	Newz (0, cctx, 1, coro_cctx);	638	Newz (0, cctx, 1, coro_cctx);
634		639
635	#if HAVE_MMAP	640	#if HAVE_MMAP
636		641
637	cctx->ssize = ((CORO_STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	642	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
638	/* mmap supposedly does allocate-on-write for us */	643	/* mmap supposedly does allocate-on-write for us */
639	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	644	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
640		645
641	if (cctx->sptr != (void *)-1)	646	if (cctx->sptr != (void *)-1)
642	{	647	{
643	# if CORO_STACKGUARD	648	# if CORO_STACKGUARD
644	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	649	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
645	# endif	650	# endif
646	REGISTER_STACK (
647	cctx,
648	CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr,	651	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
649	cctx->ssize + (char *)cctx->sptr	652	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
650	);	653	cctx->mapped = 1;
651
652	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
653	}	654	}
654	else	655	else
655	#endif	656	#endif
656	{	657	{
657	cctx->ssize = -CORO_STACKSIZE * (long)sizeof (long);	658	cctx->ssize = coro_stacksize * (long)sizeof (long);
658	New (0, cctx->sptr, CORO_STACKSIZE, long);	659	New (0, cctx->sptr, coro_stacksize, long);
659		660
660	if (!cctx->sptr)	661	if (!cctx->sptr)
661	{	662	{
662	perror ("FATAL: unable to allocate stack for coroutine");	663	perror ("FATAL: unable to allocate stack for coroutine");
663	_exit (EXIT_FAILURE);	664	_exit (EXIT_FAILURE);
664	}	665	}
665		666
666	REGISTER_STACK (	667	stack_start = cctx->sptr;
667	cctx,	668	stack_size = cctx->ssize;
668	(char *)cctx->sptr,	669	}
669	(char *)cctx->sptr - cctx->ssize
670	);
671		670
		671	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
672	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, -cctx->ssize);	672	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
673	}
674		673
675	return cctx;	674	return cctx;
676	}	675	}
677		676
678	static void	677	static void
…		…
686	#if CORO_USE_VALGRIND	685	#if CORO_USE_VALGRIND
687	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	686	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
688	#endif	687	#endif
689		688
690	#if HAVE_MMAP	689	#if HAVE_MMAP
691	if (cctx->ssize > 0)	690	if (cctx->mapped)
692	munmap (cctx->sptr, cctx->ssize);	691	munmap (cctx->sptr, cctx->ssize);
693	else	692	else
694	#endif	693	#endif
695	Safefree (cctx->sptr);	694	Safefree (cctx->sptr);
696		695
697	Safefree (cctx);	696	Safefree (cctx);
698	}	697	}
699		698
700	static coro_cctx *	699	static coro_cctx *
701	cctx_get ()	700	cctx_get (pTHX)
702	{	701	{
703	coro_cctx *cctx;
704
705	if (cctx_first)	702	while (cctx_first)
706	{	703	{
707	cctx = cctx_first;	704	coro_cctx *cctx = cctx_first;
708	cctx_first = cctx->next;	705	cctx_first = cctx->next;
709	--cctx_idle;	706	--cctx_idle;
		707
		708	if (cctx->ssize >= coro_stacksize)
		709	return cctx;
		710
		711	cctx_destroy (cctx);
710	}	712	}
711	else	713
712	{
713	cctx = cctx_new ();
714	PL_op = PL_op->op_next;	714	PL_op = PL_op->op_next;
715	}
716
717	return cctx;	715	return cctx_new ();
718	}	716	}
719		717
720	static void	718	static void
721	cctx_put (coro_cctx *cctx)	719	cctx_put (coro_cctx *cctx)
722	{	720	{
…		…
738		736
739	/ coroutine switching ***************************************************/	737	/ coroutine switching ***************************************************/
740		738
741	/* never call directly, always through the coro_state_transfer global variable */	739	/* never call directly, always through the coro_state_transfer global variable */
742	static void NOINLINE	740	static void NOINLINE
743	transfer (struct coro prev, struct coro next)	741	transfer (pTHX_ struct coro prev, struct coro next)
744	{	742	{
745	dSTACKLEVEL;	743	dSTACKLEVEL;
746		744
747	/* sometimes transfer is only called to set idle_sp */	745	/* sometimes transfer is only called to set idle_sp */
748	if (!next)	746	if (!next)
…		…
781	if (next->flags & CF_NEW)	779	if (next->flags & CF_NEW)
782	{	780	{
783	/* need to start coroutine */	781	/* need to start coroutine */
784	next->flags &= ~CF_NEW;	782	next->flags &= ~CF_NEW;
785	/* first get rid of the old state */	783	/* first get rid of the old state */
786	save_perl (prev);	784	save_perl (aTHX_ prev);
787	/* setup coroutine call */	785	/* setup coroutine call */
788	setup_coro (next);	786	setup_coro (aTHX_ next);
789	/* need a new stack */	787	/* need a new stack */
790	assert (!next->cctx);	788	assert (!next->cctx);
791	}	789	}
792	else	790	else
793	{	791	{
794	/* coroutine already started */	792	/* coroutine already started */
795	save_perl (prev);	793	save_perl (aTHX_ prev);
796	load_perl (next);	794	load_perl (aTHX_ next);
797	}	795	}
798		796
799	prev__cctx = prev->cctx;	797	prev__cctx = prev->cctx;
800		798
801	/* possibly "free" the cctx */	799	/* possibly "free" the cctx */
…		…
810	prev__cctx->inuse = 0;	808	prev__cctx->inuse = 0;
811	}	809	}
812		810
813	if (!next->cctx)	811	if (!next->cctx)
814	{	812	{
815	next->cctx = cctx_get ();	813	next->cctx = cctx_get (aTHX);
816	assert (!next->cctx->inuse);	814	assert (!next->cctx->inuse);
817	next->cctx->inuse = 1;	815	next->cctx->inuse = 1;
818	}	816	}
819		817
820	if (prev__cctx != next->cctx)	818	if (prev__cctx != next->cctx)
…		…
822	prev__cctx->top_env = PL_top_env;	820	prev__cctx->top_env = PL_top_env;
823	PL_top_env = next->cctx->top_env;	821	PL_top_env = next->cctx->top_env;
824	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	822	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
825	}	823	}
826		824
827	free_coro_mortal ();	825	free_coro_mortal (aTHX);
828	UNLOCK;	826	UNLOCK;
829	}	827	}
830	}	828	}
831		829
832	struct transfer_args	830	struct transfer_args
833	{	831	{
834	struct coro prev, next;	832	struct coro prev, next;
835	};	833	};
836		834
837	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	835	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
838		836
839	/ high level stuff ******************************************************/	837	/ high level stuff ******************************************************/
840		838
841	static int	839	static int
842	coro_state_destroy (struct coro *coro)	840	coro_state_destroy (pTHX_ struct coro *coro)
843	{	841	{
844	if (coro->flags & CF_DESTROYED)	842	if (coro->flags & CF_DESTROYED)
845	return 0;	843	return 0;
846		844
847	coro->flags \|= CF_DESTROYED;	845	coro->flags \|= CF_DESTROYED;
…		…
867	temp.save = CORO_SAVE_ALL;	865	temp.save = CORO_SAVE_ALL;
868		866
869	if (coro->flags & CF_RUNNING)	867	if (coro->flags & CF_RUNNING)
870	croak ("FATAL: tried to destroy currently running coroutine");	868	croak ("FATAL: tried to destroy currently running coroutine");
871		869
872	save_perl (&temp);	870	save_perl (aTHX_ &temp);
873	load_perl (coro);	871	load_perl (aTHX_ coro);
874		872
875	coro_destroy_stacks ();	873	coro_destroy_stacks (aTHX);
876		874
877	load_perl (&temp); /* this will get rid of defsv etc.. */	875	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
878		876
879	coro->mainstack = 0;	877	coro->mainstack = 0;
880	}	878	}
881		879
882	cctx_destroy (coro->cctx);	880	cctx_destroy (coro->cctx);
…		…
891	struct coro coro = (struct coro )mg->mg_ptr;	889	struct coro coro = (struct coro )mg->mg_ptr;
892	mg->mg_ptr = 0;	890	mg->mg_ptr = 0;
893		891
894	if (--coro->refcnt < 0)	892	if (--coro->refcnt < 0)
895	{	893	{
896	coro_state_destroy (coro);	894	coro_state_destroy (aTHX_ coro);
897	Safefree (coro);	895	Safefree (coro);
898	}	896	}
899		897
900	return 0;	898	return 0;
901	}	899	}
…		…
920	# define MGf_DUP 0	918	# define MGf_DUP 0
921	#endif	919	#endif
922	};	920	};
923		921
924	static struct coro *	922	static struct coro *
925	SvSTATE (SV *coro)	923	SvSTATE_ (pTHX_ SV *coro)
926	{	924	{
927	HV *stash;	925	HV *stash;
928	MAGIC *mg;	926	MAGIC *mg;
929		927
930	if (SvROK (coro))	928	if (SvROK (coro))
…		…
940		938
941	mg = CORO_MAGIC (coro);	939	mg = CORO_MAGIC (coro);
942	return (struct coro *)mg->mg_ptr;	940	return (struct coro *)mg->mg_ptr;
943	}	941	}
944		942
		943	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		944
945	static void	945	static void
946	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	946	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
947	{	947	{
948	ta->prev = SvSTATE (prev_sv);	948	ta->prev = SvSTATE (prev_sv);
949	ta->next = SvSTATE (next_sv);	949	ta->next = SvSTATE (next_sv);
950	}	950	}
951		951
952	static void	952	static void
953	api_transfer (SV prev_sv, SV next_sv)	953	api_transfer (SV prev_sv, SV next_sv)
954	{	954	{
		955	dTHX;
955	struct transfer_args ta;	956	struct transfer_args ta;
956		957
957	prepare_transfer (&ta, prev_sv, next_sv);	958	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
958	TRANSFER (ta);	959	TRANSFER (ta);
959	}	960	}
960		961
961	static int	962	static int
962	api_save (SV *coro_sv, int new_save)	963	api_save (SV *coro_sv, int new_save)
963	{	964	{
		965	dTHX;
964	struct coro *coro = SvSTATE (coro_sv);	966	struct coro *coro = SvSTATE (coro_sv);
965	int old_save = coro->save;	967	int old_save = coro->save;
966		968
967	if (new_save >= 0)	969	if (new_save >= 0)
968	coro->save = new_save;	970	coro->save = new_save;
…		…
971	}	973	}
972		974
973	/ Coro ******************************************************************/	975	/ Coro ******************************************************************/
974		976
975	static void	977	static void
976	coro_enq (SV *coro_sv)	978	coro_enq (pTHX_ SV *coro_sv)
977	{	979	{
978	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	980	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
979	}	981	}
980		982
981	static SV *	983	static SV *
982	coro_deq (int min_prio)	984	coro_deq (pTHX_ int min_prio)
983	{	985	{
984	int prio = PRIO_MAX - PRIO_MIN;	986	int prio = PRIO_MAX - PRIO_MIN;
985		987
986	min_prio -= PRIO_MIN;	988	min_prio -= PRIO_MIN;
987	if (min_prio < 0)	989	if (min_prio < 0)
…		…
995	}	997	}
996		998
997	static int	999	static int
998	api_ready (SV *coro_sv)	1000	api_ready (SV *coro_sv)
999	{	1001	{
		1002	dTHX;
1000	struct coro *coro;	1003	struct coro *coro;
1001		1004
1002	if (SvROK (coro_sv))	1005	if (SvROK (coro_sv))
1003	coro_sv = SvRV (coro_sv);	1006	coro_sv = SvRV (coro_sv);
1004		1007
…		…
1008	return 0;	1011	return 0;
1009		1012
1010	coro->flags \|= CF_READY;	1013	coro->flags \|= CF_READY;
1011		1014
1012	LOCK;	1015	LOCK;
1013	coro_enq (SvREFCNT_inc (coro_sv));	1016	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1014	++coro_nready;	1017	++coro_nready;
1015	UNLOCK;	1018	UNLOCK;
1016		1019
1017	return 1;	1020	return 1;
1018	}	1021	}
1019		1022
1020	static int	1023	static int
1021	api_is_ready (SV *coro_sv)	1024	api_is_ready (SV *coro_sv)
1022	{	1025	{
		1026	dTHX;
1023	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1027	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1024	}	1028	}
1025		1029
1026	static void	1030	static void
1027	prepare_schedule (struct transfer_args *ta)	1031	prepare_schedule (pTHX_ struct transfer_args *ta)
1028	{	1032	{
1029	SV prev_sv, next_sv;	1033	SV prev_sv, next_sv;
1030		1034
1031	for (;;)	1035	for (;;)
1032	{	1036	{
1033	LOCK;	1037	LOCK;
1034	next_sv = coro_deq (PRIO_MIN);	1038	next_sv = coro_deq (aTHX_ PRIO_MIN);
1035		1039
1036	/* nothing to schedule: call the idle handler */	1040	/* nothing to schedule: call the idle handler */
1037	if (!next_sv)	1041	if (!next_sv)
1038	{	1042	{
1039	dSP;	1043	dSP;
…		…
1074		1078
1075	assert (ta->next->flags & CF_READY);	1079	assert (ta->next->flags & CF_READY);
1076	ta->next->flags &= ~CF_READY;	1080	ta->next->flags &= ~CF_READY;
1077		1081
1078	LOCK;	1082	LOCK;
1079	free_coro_mortal ();	1083	free_coro_mortal (aTHX);
1080	coro_mortal = prev_sv;	1084	coro_mortal = prev_sv;
1081	UNLOCK;	1085	UNLOCK;
1082	}	1086	}
1083		1087
1084	static void	1088	static void
1085	prepare_cede (struct transfer_args *ta)	1089	prepare_cede (pTHX_ struct transfer_args *ta)
1086	{	1090	{
1087	api_ready (coro_current);	1091	api_ready (coro_current);
1088	prepare_schedule (ta);	1092	prepare_schedule (aTHX_ ta);
1089	}	1093	}
1090		1094
1091	static int	1095	static int
1092	prepare_cede_notself (struct transfer_args *ta)	1096	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1093	{	1097	{
1094	if (coro_nready)	1098	if (coro_nready)
1095	{	1099	{
1096	SV *prev = SvRV (coro_current);	1100	SV *prev = SvRV (coro_current);
1097	prepare_schedule (ta);	1101	prepare_schedule (aTHX_ ta);
1098	api_ready (prev);	1102	api_ready (prev);
1099	return 1;	1103	return 1;
1100	}	1104	}
1101	else	1105	else
1102	return 0;	1106	return 0;
1103	}	1107	}
1104		1108
1105	static void	1109	static void
1106	api_schedule (void)	1110	api_schedule (void)
1107	{	1111	{
		1112	dTHX;
1108	struct transfer_args ta;	1113	struct transfer_args ta;
1109		1114
1110	prepare_schedule (&ta);	1115	prepare_schedule (aTHX_ &ta);
1111	TRANSFER (ta);	1116	TRANSFER (ta);
1112	}	1117	}
1113		1118
1114	static int	1119	static int
1115	api_cede (void)	1120	api_cede (void)
1116	{	1121	{
		1122	dTHX;
1117	struct transfer_args ta;	1123	struct transfer_args ta;
1118		1124
1119	prepare_cede (&ta);	1125	prepare_cede (aTHX_ &ta);
1120		1126
1121	if (ta.prev != ta.next)	1127	if (ta.prev != ta.next)
1122	{	1128	{
1123	TRANSFER (ta);	1129	TRANSFER (ta);
1124	return 1;	1130	return 1;
…		…
1128	}	1134	}
1129		1135
1130	static int	1136	static int
1131	api_cede_notself (void)	1137	api_cede_notself (void)
1132	{	1138	{
		1139	dTHX;
1133	struct transfer_args ta;	1140	struct transfer_args ta;
1134		1141
1135	if (prepare_cede_notself (&ta))	1142	if (prepare_cede_notself (aTHX_ &ta))
1136	{	1143	{
1137	TRANSFER (ta);	1144	TRANSFER (ta);
1138	return 1;	1145	return 1;
1139	}	1146	}
1140	else	1147	else
…		…
1218		1225
1219	case 1:	1226	case 1:
1220	if (items != 2)	1227	if (items != 2)
1221	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1228	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1222		1229
1223	prepare_transfer (&ta, ST (0), ST (1));	1230	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1224	break;	1231	break;
1225		1232
1226	case 2:	1233	case 2:
1227	prepare_schedule (&ta);	1234	prepare_schedule (aTHX_ &ta);
1228	break;	1235	break;
1229		1236
1230	case 3:	1237	case 3:
1231	prepare_cede (&ta);	1238	prepare_cede (aTHX_ &ta);
1232	break;	1239	break;
1233		1240
1234	case 4:	1241	case 4:
1235	if (!prepare_cede_notself (&ta))	1242	if (!prepare_cede_notself (aTHX_ &ta))
1236	XSRETURN_EMPTY;	1243	XSRETURN_EMPTY;
1237		1244
1238	break;	1245	break;
1239	}	1246	}
1240		1247
…		…
1246	}	1253	}
1247		1254
1248	bool	1255	bool
1249	_destroy (SV *coro_sv)	1256	_destroy (SV *coro_sv)
1250	CODE:	1257	CODE:
1251	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1258	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1252	OUTPUT:	1259	OUTPUT:
1253	RETVAL	1260	RETVAL
1254		1261
1255	void	1262	void
1256	_exit (code)	1263	_exit (code)
1257	int code	1264	int code
1258	PROTOTYPE: $	1265	PROTOTYPE: $
1259	CODE:	1266	CODE:
1260	_exit (code);	1267	_exit (code);
		1268
		1269	int
		1270	cctx_stacksize (int new_stacksize = 0)
		1271	CODE:
		1272	RETVAL = coro_stacksize;
		1273	if (new_stacksize)
		1274	coro_stacksize = new_stacksize;
		1275	OUTPUT:
		1276	RETVAL
1261		1277
1262	int	1278	int
1263	cctx_count ()	1279	cctx_count ()
1264	CODE:	1280	CODE:
1265	RETVAL = cctx_count;	1281	RETVAL = cctx_count;

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Comparing Coro/Coro/State.xs (file contents): Revision 1.144 by root, Sun Mar 4 11:45:23 2007 UTC vs. Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.144 by root, Sun Mar 4 11:45:23 2007 UTC vs.
Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC