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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.81 by root, Fri Nov 3 00:56:03 2006 UTC vs.
Revision 1.98 by root, Sun Nov 26 21:25:53 2006 UTC

…		…
1	#define PERL_NO_GET_CONTEXT
2
3	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
4		2
5	#include "EXTERN.h"	3	#include "EXTERN.h"
6	#include "perl.h"	4	#include "perl.h"
7	#include "XSUB.h"	5	#include "XSUB.h"
27	# ifndef IS_PADCONST	25	# ifndef IS_PADCONST
28	# define IS_PADCONST(v) 0	26	# define IS_PADCONST(v) 0
29	# endif	27	# endif
30	#endif	28	#endif
31		29
		30	#include <stdio.h>
32	#include <errno.h>	31	#include <errno.h>
33		32
34	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	33	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
35	# undef STACKGUARD	34	# undef STACKGUARD
36	#endif	35	#endif
…		…
57	# else	56	# else
58	# define BOOT_PAGESIZE	57	# define BOOT_PAGESIZE
59	# endif	58	# endif
60	#endif	59	#endif
61		60
62	#define SUB_INIT "Coro::State::initialize"
63	#define UCORO_STATE "_coro_state"
64
65	/* The next macro should declare a variable stacklevel that contains and approximation	61	/* The next macro should declare a variable stacklevel that contains and approximation
66	* to the current C stack pointer. Its property is that it changes with each call	62	* to the current C stack pointer. Its property is that it changes with each call
67	* and should be unique. */	63	* and should be unique. */
		64	#define dSTACKLEVEL int stacklevel
68	#define dSTACKLEVEL void *stacklevel = &stacklevel	65	#define STACKLEVEL ((void *)&stacklevel)
69		66
70	#define IN_DESTRUCT (PL_main_cv == Nullcv)	67	#define IN_DESTRUCT (PL_main_cv == Nullcv)
71		68
72	#define labs(l) ((l) >= 0 ? (l) : -(l))
73
74	#include "CoroAPI.h"	69	#include "CoroAPI.h"
		70
		71	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
75		72
76	#ifdef USE_ITHREADS	73	#ifdef USE_ITHREADS
77	static perl_mutex coro_mutex;	74	static perl_mutex coro_mutex;
78	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	75	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
79	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	76	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
…		…
82	# define UNLOCK (void)0	79	# define UNLOCK (void)0
83	#endif	80	#endif
84		81
85	static struct CoroAPI coroapi;	82	static struct CoroAPI coroapi;
86	static AV main_mainstack; / used to differentiate between $main and others */	83	static AV main_mainstack; / used to differentiate between $main and others */
87	static HV *coro_state_stash;	84	static HV coro_state_stash, coro_stash;
88	static SV *ucoro_state_sv;
89	static U32 ucoro_state_hash;
90	static SV coro_mortal; / will be freed after next transfer */	85	static SV coro_mortal; / will be freed after next transfer */
91		86
92	/* this is actually not only the c stack but also c registers etc... */	87	/* this is a structure representing a c-level coroutine */
93	typedef struct {	88	typedef struct coro_stack {
94	int refcnt; /* pointer reference counter */	89	struct coro_stack *next;
95	int usecnt; /* shared by how many coroutines */
96	int gencnt; /* generation counter */
97		90
98	coro_context cctx;	91	/* the stack */
99
100	void *sptr;	92	void *sptr;
101	long ssize; /* positive == mmap, otherwise malloc */	93	long ssize; /* positive == mmap, otherwise malloc */
		94
		95	/* cpu state */
		96	void idle_sp; / sp of top-level transfer/schedule/cede call */
		97	JMPENV *top_env;
		98	coro_context cctx;
102	} coro_stack;	99	} coro_stack;
103		100
		101	/* this is a structure representing a perl-level coroutine */
104	struct coro {	102	struct coro {
105	/* the optional C context */	103	/* the c coroutine allocated to this perl coroutine, if any */
106	coro_stack *stack;	104	coro_stack *stack;
107	void *cursp;	105
		106	/* data associated with this coroutine (initial args) */
		107	AV *args;
108	int gencnt;	108	int refcnt;
109		109
110	/* optionally saved, might be zero */	110	/* optionally saved, might be zero */
111	AV *defav;	111	AV *defav;
112	SV *defsv;	112	SV *defsv;
113	SV *errsv;	113	SV *errsv;
…		…
143	OP **retstack;	143	OP **retstack;
144	I32 retstack_ix;	144	I32 retstack_ix;
145	I32 retstack_max;	145	I32 retstack_max;
146	PMOP *curpm;	146	PMOP *curpm;
147	COP *curcop;	147	COP *curcop;
148	JMPENV *top_env;
149		148
150	/* data associated with this coroutine (initial args) */	149	/* coro process data */
151	AV *args;	150	int prio;
152	};	151	};
153		152
154	typedef struct coro *Coro__State;	153	typedef struct coro *Coro__State;
155	typedef struct coro *Coro__State_or_hashref;	154	typedef struct coro *Coro__State_or_hashref;
156		155
157	static AV *	156	static AV *
158	coro_clone_padlist (pTHX_ CV *cv)	157	coro_clone_padlist (CV *cv)
159	{	158	{
160	AV *padlist = CvPADLIST (cv);	159	AV *padlist = CvPADLIST (cv);
161	AV newpadlist, newpad;	160	AV newpadlist, newpad;
162		161
163	newpadlist = newAV ();	162	newpadlist = newAV ();
…		…
175		174
176	return newpadlist;	175	return newpadlist;
177	}	176	}
178		177
179	static void	178	static void
180	free_padlist (pTHX_ AV *padlist)	179	free_padlist (AV *padlist)
181	{	180	{
182	/* may be during global destruction */	181	/* may be during global destruction */
183	if (SvREFCNT (padlist))	182	if (SvREFCNT (padlist))
184	{	183	{
185	I32 i = AvFILLp (padlist);	184	I32 i = AvFILLp (padlist);
…		…
206	AV *padlist;	205	AV *padlist;
207	AV av = (AV )mg->mg_obj;	206	AV av = (AV )mg->mg_obj;
208		207
209	/* casting is fun. */	208	/* casting is fun. */
210	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	209	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
211	free_padlist (aTHX_ padlist);	210	free_padlist (padlist);
212		211
213	SvREFCNT_dec (av);	212	SvREFCNT_dec (av);
214		213
215	return 0;	214	return 0;
216	}	215	}
…		…
219		218
220	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	219	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
221		220
222	/* the next two functions merely cache the padlists */	221	/* the next two functions merely cache the padlists */
223	static void	222	static void
224	get_padlist (pTHX_ CV *cv)	223	get_padlist (CV *cv)
225	{	224	{
226	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	225	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
227		226
228	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	227	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
229	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	228	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
230	else	229	else
231	{	230	{
232	#if 0	231	#if 0
233	/* this should work - but it doesn't :( */	232	/* this is probably cleaner, but also slower? */
234	CV *cp = Perl_cv_clone (aTHX_ cv);	233	CV *cp = Perl_cv_clone (cv);
235	CvPADLIST (cv) = CvPADLIST (cp);	234	CvPADLIST (cv) = CvPADLIST (cp);
236	CvPADLIST (cp) = 0;	235	CvPADLIST (cp) = 0;
237	SvREFCNT_dec (cp);	236	SvREFCNT_dec (cp);
238	#else	237	#else
239	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	238	CvPADLIST (cv) = coro_clone_padlist (cv);
240	#endif	239	#endif
241	}	240	}
242	}	241	}
243		242
244	static void	243	static void
245	put_padlist (pTHX_ CV *cv)	244	put_padlist (CV *cv)
246	{	245	{
247	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	246	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
248		247
249	if (!mg)	248	if (!mg)
250	{	249	{
…		…
258	}	257	}
259		258
260	#define SB do {	259	#define SB do {
261	#define SE } while (0)	260	#define SE } while (0)
262		261
263	#define LOAD(state) load_state(aTHX_ (state));	262	#define LOAD(state) load_state((state));
264	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	263	#define SAVE(state,flags) save_state((state),(flags));
265		264
266	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	265	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
267		266
268	static void	267	static void
269	load_state(pTHX_ Coro__State c)	268	load_state(Coro__State c)
270	{	269	{
271	PL_dowarn = c->dowarn;	270	PL_dowarn = c->dowarn;
272	PL_in_eval = c->in_eval;	271	PL_in_eval = c->in_eval;
273		272
274	PL_curstackinfo = c->curstackinfo;	273	PL_curstackinfo = c->curstackinfo;
…		…
299	PL_retstack_ix = c->retstack_ix;	298	PL_retstack_ix = c->retstack_ix;
300	PL_retstack_max = c->retstack_max;	299	PL_retstack_max = c->retstack_max;
301	#endif	300	#endif
302	PL_curpm = c->curpm;	301	PL_curpm = c->curpm;
303	PL_curcop = c->curcop;	302	PL_curcop = c->curcop;
304	PL_top_env = c->top_env;
305		303
306	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	304	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
307	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	305	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
308	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	306	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
309		307
…		…
316	{	314	{
317	AV padlist = (AV )POPs;	315	AV padlist = (AV )POPs;
318		316
319	if (padlist)	317	if (padlist)
320	{	318	{
321	put_padlist (aTHX_ cv); /* mark this padlist as available */	319	put_padlist (cv); /* mark this padlist as available */
322	CvPADLIST(cv) = padlist;	320	CvPADLIST(cv) = padlist;
323	}	321	}
324		322
325	++CvDEPTH(cv);	323	++CvDEPTH(cv);
326	}	324	}
…		…
328	PUTBACK;	326	PUTBACK;
329	}	327	}
330	}	328	}
331		329
332	static void	330	static void
333	save_state(pTHX_ Coro__State c, int flags)	331	save_state(Coro__State c, int flags)
334	{	332	{
335	{	333	{
336	dSP;	334	dSP;
337	I32 cxix = cxstack_ix;	335	I32 cxix = cxstack_ix;
338	PERL_CONTEXT *ccstk = cxstack;	336	PERL_CONTEXT *ccstk = cxstack;
…		…
366	}	364	}
367		365
368	PUSHs ((SV *)CvPADLIST(cv));	366	PUSHs ((SV *)CvPADLIST(cv));
369	PUSHs ((SV *)cv);	367	PUSHs ((SV *)cv);
370		368
371	get_padlist (aTHX_ cv);	369	get_padlist (cv);
372	}	370	}
373	}	371	}
374	#ifdef CXt_FORMAT	372	#ifdef CXt_FORMAT
375	else if (CxTYPE(cx) == CXt_FORMAT)	373	else if (CxTYPE(cx) == CXt_FORMAT)
376	{	374	{
…		…
427	c->retstack_ix = PL_retstack_ix;	425	c->retstack_ix = PL_retstack_ix;
428	c->retstack_max = PL_retstack_max;	426	c->retstack_max = PL_retstack_max;
429	#endif	427	#endif
430	c->curpm = PL_curpm;	428	c->curpm = PL_curpm;
431	c->curcop = PL_curcop;	429	c->curcop = PL_curcop;
432	c->top_env = PL_top_env;
433	}	430	}
434		431
435	/*	432	/*
436	* allocate various perl stacks. This is an exact copy	433	* allocate various perl stacks. This is an exact copy
437	* of perl.c:init_stacks, except that it uses less memory	434	* of perl.c:init_stacks, except that it uses less memory
438	* on the (sometimes correct) assumption that coroutines do	435	* on the (sometimes correct) assumption that coroutines do
439	* not usually need a lot of stackspace.	436	* not usually need a lot of stackspace.
440	*/	437	*/
441	static void	438	static void
442	coro_init_stacks (pTHX)	439	coro_init_stacks ()
443	{	440	{
444	LOCK;	441	LOCK;
445		442
446	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	443	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
447	PL_curstackinfo->si_type = PERLSI_MAIN;	444	PL_curstackinfo->si_type = PERLSI_MAIN;
…		…
484		481
485	/*	482	/*
486	* destroy the stacks, the callchain etc...	483	* destroy the stacks, the callchain etc...
487	*/	484	*/
488	static void	485	static void
489	destroy_stacks(pTHX)	486	destroy_stacks()
490	{	487	{
491	if (!IN_DESTRUCT)	488	if (!IN_DESTRUCT)
492	{	489	{
493	/* is this ugly, I ask? */	490	/* is this ugly, I ask? */
494	LEAVE_SCOPE (0);	491	LEAVE_SCOPE (0);
…		…
531	Safefree (PL_retstack);	528	Safefree (PL_retstack);
532	#endif	529	#endif
533	}	530	}
534		531
535	static void	532	static void
536	allocate_stack (Coro__State ctx, int alloc)	533	setup_coro (struct coro *coro)
537	{
538	coro_stack *stack;
539
540	New (0, stack, 1, coro_stack);
541
542	stack->refcnt = 1;
543	stack->usecnt = 1;
544	stack->gencnt = ctx->gencnt = 0;
545
546	if (alloc)
547	{
548	#if HAVE_MMAP
549	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */
550	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
551	if (stack->sptr != (void *)-1)
552	{
553	# if STACKGUARD
554	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
555	# endif
556	}
557	else
558	#endif
559	{
560	stack->ssize = - (STACKSIZE * (long)sizeof (long));
561	New (0, stack->sptr, STACKSIZE, long);
562	}
563	}
564	else
565	stack->sptr = 0;
566
567	ctx->stack = stack;
568	}
569
570	static void
571	deallocate_stack (Coro__State ctx)
572	{
573	coro_stack *stack = ctx->stack;
574
575	ctx->stack = 0;
576
577	if (stack)
578	{
579	if (!--stack->refcnt)
580	{
581	#ifdef HAVE_MMAP
582	if (stack->ssize > 0 && stack->sptr)
583	munmap (stack->sptr, stack->ssize);
584	else
585	#endif
586	Safefree (stack->sptr);
587
588	Safefree (stack);
589	}
590	else if (ctx->gencnt == stack->gencnt)
591	--stack->usecnt;
592	}
593	}
594
595	static void
596	setup_coro (void *arg)
597	{	534	{
598	/*	535	/*
599	* emulate part of the perl startup here.	536	* emulate part of the perl startup here.
600	*/	537	*/
601	dTHX;	538	dTHX;
602	dSP;	539	dSP;
603	Coro__State ctx = (Coro__State)arg;	540	UNOP myop;
604	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);	541	SV sub_init = (SV )get_cv ("Coro::State::coro_init", FALSE);
605		542
606	coro_init_stacks (aTHX);	543	coro_init_stacks ();
607	/PL_curcop = 0;/	544	/PL_curcop = 0;/
608	/PL_in_eval = PL_in_eval;/ /* inherit */	545	/PL_in_eval = PL_in_eval;/ /* inherit */
609	SvREFCNT_dec (GvAV (PL_defgv));	546	SvREFCNT_dec (GvAV (PL_defgv));
610	GvAV (PL_defgv) = ctx->args; ctx->args = 0;	547	GvAV (PL_defgv) = coro->args; coro->args = 0;
611		548
612	SPAGAIN;	549	SPAGAIN;
613		550
614	if (ctx->stack)
615	{
616	ctx->cursp = 0;
617
618	PUSHMARK(SP);
619	PUTBACK;
620	(void) call_sv (sub_init, G_VOID\|G_NOARGS\|G_EVAL);
621
622	if (SvTRUE (ERRSV))
623	croak (NULL);
624	else
625	croak ("FATAL: CCTXT coroutine returned!");
626	}
627	else
628	{
629	UNOP myop;
630
631	Zero(&myop, 1, UNOP);	551	Zero (&myop, 1, UNOP);
632	myop.op_next = Nullop;	552	myop.op_next = Nullop;
633	myop.op_flags = OPf_WANT_VOID;	553	myop.op_flags = OPf_WANT_VOID;
634		554
635	PL_op = (OP *)&myop;	555	PL_op = (OP *)&myop;
636		556
637	PUSHMARK(SP);	557	PUSHMARK(SP);
638	XPUSHs (sub_init);	558	XPUSHs (sub_init);
639	/*
640	* the next line is slightly wrong, as PL_op->op_next
641	* is actually being executed so we skip the first op.
642	* that doesn't matter, though, since it is only
643	* pp_nextstate and we never return...
644	* ah yes, and I don't care anyways ;)
645	*/
646	PUTBACK;	559	PUTBACK;
647	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	560	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
648	SPAGAIN;	561	SPAGAIN;
649		562
650	ENTER; /* necessary e.g. for dounwind */	563	ENTER; /* necessary e.g. for dounwind */
651	}
652	}	564	}
653		565
654	static void	566	static void
655	continue_coro (void *arg)	567	free_coro_mortal ()
656	{	568	{
657	/*
658	* this is a _very_ stripped down perl interpreter ;)
659	*/
660	dTHX;
661	Coro__State ctx = (Coro__State)arg;
662
663	PL_top_env = &PL_start_env;
664
665	ctx->cursp = 0;
666	PL_op = PL_op->op_next;
667	CALLRUNOPS(aTHX);
668
669	abort ();
670	}
671
672	static void
673	transfer (pTHX_ struct coro prev, struct coro next, int flags)
674	{
675	dSTACKLEVEL;
676
677	if (prev != next)
678	{
679	/* has this coro been created yet? */
680	if (next->mainstack)
681	{
682	LOCK;
683	SAVE (prev, flags);
684	LOAD (next);
685	UNLOCK;
686
687	/* mark this state as in-use */
688	next->mainstack = 0;
689	next->tmps_ix = -2;
690
691	/* stacklevel changed? if yes, grab the stack for us! */
692	if (flags & TRANSFER_SAVE_CCTXT)
693	{
694	if (!prev->stack)
695	allocate_stack (prev, 0);
696	else if (prev->cursp != stacklevel
697	&& prev->stack->usecnt > 1)
698	{
699	prev->gencnt = ++prev->stack->gencnt;
700	prev->stack->usecnt = 1;
701	}
702
703	/* has our stack been invalidated? */
704	if (next->stack && next->stack->gencnt != next->gencnt)
705	{
706	deallocate_stack (next);
707	allocate_stack (next, 1);
708	coro_create (&(next->stack->cctx),
709	continue_coro, (void *)next,
710	next->stack->sptr, labs (next->stack->ssize));
711	}
712
713	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
714	prev->cursp = stacklevel;
715	/* don't add any code here */
716	}
717	else
718	next->cursp = stacklevel;
719	}
720	else if (next->tmps_ix == -2)
721	croak ("tried to transfer to running coroutine");
722	else
723	{
724	LOCK;
725	SAVE (prev, -1); /* first get rid of the old state */
726	UNLOCK;
727
728	/* create the coroutine for the first time */
729	if (flags & TRANSFER_SAVE_CCTXT)
730	{
731	if (!prev->stack)
732	allocate_stack (prev, 0);
733
734	/* the new coroutine starts with start_env again */
735	PL_top_env = &PL_start_env;
736
737	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
738	{
739	setup_coro (next);
740	next->cursp = stacklevel;
741
742	prev->stack->refcnt++;
743	prev->stack->usecnt++;
744	next->stack = prev->stack;
745	next->gencnt = prev->gencnt;
746	}
747	else
748	{
749	assert (!next->stack);
750	allocate_stack (next, 1);
751	coro_create (&(next->stack->cctx),
752	setup_coro, (void *)next,
753	next->stack->sptr, labs (next->stack->ssize));
754	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
755	prev->cursp = stacklevel;
756	/* don't add any code here */
757	}
758	}
759	else
760	{
761	setup_coro (next);
762	next->cursp = stacklevel;
763	}
764	}
765	}
766
767	LOCK;
768	if (coro_mortal)	569	if (coro_mortal)
769	{	570	{
770	SvREFCNT_dec (coro_mortal);	571	SvREFCNT_dec (coro_mortal);
771	coro_mortal = 0;	572	coro_mortal = 0;
772	}	573	}
		574	}
		575
		576	static void
		577	coro_run (void *arg)
		578	{
		579	/*
		580	* this is a _very_ stripped down perl interpreter ;)
		581	*/
		582	dTHX;
		583	int ret;
		584
773	UNLOCK;	585	UNLOCK;
774	}
775		586
776	#define SV_CORO(sv,func) \	587	PL_top_env = &PL_start_env;
777	do { \
778	if (SvROK (sv)) \
779	sv = SvRV (sv); \
780	\
781	if (SvTYPE (sv) == SVt_PVHV) \
782	{ \
783	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
784	\
785	if (!he) \
786	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
787	\
788	(sv) = SvRV (HeVAL(he)); \
789	} \
790	\
791	/* must also be changed inside Coro::Cont::yield */ \
792	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
793	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
794	\
795	} while(0)
796		588
797	#define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv))	589	sv_setiv (get_sv ("Coro::State::cctx_stack", FALSE), PTR2IV ((coro_stack *)arg));
		590	sv_setiv (get_sv ("Coro::State::cctx_restartop", FALSE), PTR2IV (PL_op));
798		591
		592	/* continue at cctx_init, without entersub */
		593	PL_restartop = CvSTART (get_cv ("Coro::State::cctx_init", FALSE));
		594
		595	/* somebody will hit me for both perl_run and PL_restartop */
		596	ret = perl_run (PERL_GET_CONTEXT);
		597	printf ("ret %d\n", ret);//D
		598
		599	fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr);
		600	abort ();
		601	}
		602
		603	static coro_stack *
		604	stack_new ()
		605	{
		606	coro_stack *stack;
		607
		608	New (0, stack, 1, coro_stack);
		609
		610	#if HAVE_MMAP
		611
		612	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
		613	/* mmap suppsedly does allocate-on-write for us */
		614	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
		615
		616	if (stack->sptr == (void *)-1)
		617	{
		618	perror ("FATAL: unable to mmap stack for coroutine");
		619	_exit (EXIT_FAILURE);
		620	}
		621
		622	# if STACKGUARD
		623	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		624	# endif
		625
		626	#else
		627
		628	stack->ssize = STACKSIZE * (long)sizeof (long);
		629	New (0, stack->sptr, STACKSIZE, long);
		630
		631	if (!stack->sptr)
		632	{
		633	perror (stderr, "FATAL: unable to malloc stack for coroutine");
		634	_exit (EXIT_FAILURE);
		635	}
		636
		637	#endif
		638
		639	coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize);
		640
		641	return stack;
		642	}
		643
		644	static void
		645	stack_free (coro_stack *stack)
		646	{
		647	if (!stack)
		648	return;
		649
		650	#if HAVE_MMAP
		651	munmap (stack->sptr, stack->ssize);
		652	#else
		653	Safefree (stack->sptr);
		654	#endif
		655
		656	Safefree (stack);
		657	}
		658
		659	static coro_stack *stack_first;
		660
		661	static coro_stack *
		662	stack_get ()
		663	{
		664	coro_stack *stack;
		665
		666	if (stack_first)
		667	{
		668	stack = stack_first;
		669	stack_first = stack->next;
		670	}
		671	else
		672	{
		673	stack = stack_new ();
		674	PL_op = PL_op->op_next;
		675	}
		676
		677	return stack;
		678	}
		679
		680	static void
		681	stack_put (coro_stack *stack)
		682	{
		683	stack->next = stack_first;
		684	stack_first = stack;
		685	}
		686
		687	/* never call directly, always through the coro_state_transfer global variable */
		688	static void
		689	transfer_impl (struct coro prev, struct coro next, int flags)
		690	{
		691	dSTACKLEVEL;
		692
		693	/* sometimes transfer is only called to set idle_sp */
		694	if (flags == TRANSFER_SET_STACKLEVEL)
		695	((coro_stack *)prev)->idle_sp = STACKLEVEL;
		696	else if (prev != next)
		697	{
		698	coro_stack *prev__stack;
		699
		700	LOCK;
		701
		702	if (next->mainstack)
		703	{
		704	/* coroutine already started */
		705	SAVE (prev, flags);
		706	LOAD (next);
		707	}
		708	else
		709	{
		710	/* need to start coroutine */
		711	/* first get rid of the old state */
		712	SAVE (prev, -1);
		713	/* setup coroutine call */
		714	setup_coro (next);
		715	/* need a stack */
		716	next->stack = 0;
		717	}
		718
		719	if (!prev->stack)
		720	/* create a new empty context */
		721	Newz (0, prev->stack, 1, coro_stack);
		722
		723	prev__stack = prev->stack;
		724
		725	/* possibly "free" the stack */
		726	if (prev__stack->idle_sp == STACKLEVEL)
		727	{
		728	stack_put (prev__stack);
		729	prev->stack = 0;
		730	}
		731
		732	if (!next->stack)
		733	next->stack = stack_get ();
		734
		735	if (prev__stack != next->stack)
		736	{
		737	prev__stack->top_env = PL_top_env;
		738	PL_top_env = next->stack->top_env;
		739	coro_transfer (&prev__stack->cctx, &next->stack->cctx);
		740	}
		741
		742	free_coro_mortal ();
		743
		744	UNLOCK;
		745	}
		746	}
		747
		748	/* use this function pointer to call the above function */
		749	/* this is done to increase chances of the compiler not inlining the call */
		750	/* not static to make it even harder for the compiler (and theoretically impossible in most cases */
		751	void (coro_state_transfer)(struct coro prev, struct coro *next, int flags) = transfer_impl;
		752
		753	struct transfer_args
		754	{
		755	struct coro prev, next;
		756	int flags;
		757	};
		758
		759	#define TRANSFER(ta) coro_state_transfer ((ta).prev, (ta).next, (ta).flags)
		760
		761	static void
		762	coro_state_destroy (struct coro *coro)
		763	{
		764	if (coro->refcnt--)
		765	return;
		766
		767	if (coro->mainstack && coro->mainstack != main_mainstack)
		768	{
		769	struct coro temp;
		770
		771	SAVE ((&temp), TRANSFER_SAVE_ALL);
		772	LOAD (coro);
		773
		774	destroy_stacks ();
		775
		776	LOAD ((&temp)); /* this will get rid of defsv etc.. */
		777
		778	coro->mainstack = 0;
		779	}
		780
		781	stack_free (coro->stack);
		782	SvREFCNT_dec (coro->args);
		783	Safefree (coro);
		784	}
		785
799	static void	786	static int
		787	coro_state_clear (pTHX_ SV sv, MAGIC mg)
		788	{
		789	struct coro coro = (struct coro )mg->mg_ptr;
		790	mg->mg_ptr = 0;
		791
		792	coro_state_destroy (coro);
		793
		794	return 0;
		795	}
		796
		797	static int
		798	coro_state_dup (pTHX_ MAGIC mg, CLONE_PARAMS params)
		799	{
		800	struct coro coro = (struct coro )mg->mg_ptr;
		801
		802	++coro->refcnt;
		803
		804	return 0;
		805	}
		806
		807	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };
		808
		809	static struct coro *
		810	SvSTATE (SV *coro)
		811	{
		812	HV *stash;
		813	MAGIC *mg;
		814
		815	if (SvROK (coro))
		816	coro = SvRV (coro);
		817
		818	stash = SvSTASH (coro);
		819	if (stash != coro_stash && stash != coro_state_stash)
		820	{
		821	/* very slow, but rare, check */
		822	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		823	croak ("Coro::State object required");
		824	}
		825
		826	mg = SvMAGIC (coro);
		827	assert (mg->mg_type == PERL_MAGIC_ext);
		828	return (struct coro *)mg->mg_ptr;
		829	}
		830
		831	static void
		832	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)
		833	{
		834	ta->prev = SvSTATE (prev);
		835	ta->next = SvSTATE (next);
		836	ta->flags = flags;
		837	}
		838
		839	static void
800	api_transfer(pTHX_ SV prev, SV next, int flags)	840	api_transfer (SV prev, SV next, int flags)
801	{	841	{
802	SV_CORO (prev, "Coro::transfer");	842	dTHX;
803	SV_CORO (next, "Coro::transfer");	843	struct transfer_args ta;
804		844
805	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	845	prepare_transfer (&ta, prev, next, flags);
		846	TRANSFER (ta);
806	}	847	}
807		848
808	/ Coro ******************************************************************/	849	/ Coro ******************************************************************/
809		850
810	#define PRIO_MAX 3	851	#define PRIO_MAX 3
…		…
814	#define PRIO_IDLE -3	855	#define PRIO_IDLE -3
815	#define PRIO_MIN -4	856	#define PRIO_MIN -4
816		857
817	/* for Coro.pm */	858	/* for Coro.pm */
818	static GV coro_current, coro_idle;	859	static GV coro_current, coro_idle;
819	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	860	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
820	static int coro_nready;	861	static int coro_nready;
821		862
822	static void	863	static void
823	coro_enq (pTHX_ SV *sv)	864	coro_enq (SV *sv)
824	{	865	{
825	SV **xprio;
826	int prio;	866	int prio;
827		867
828	if (SvTYPE (sv) != SVt_PVHV)	868	if (SvTYPE (sv) != SVt_PVHV)
829	croak ("Coro::ready tried to enqueue something that is not a coroutine");	869	croak ("Coro::ready tried to enqueue something that is not a coroutine");
830		870
831	xprio = hv_fetch ((HV *)sv, "prio", 4, 0);	871	prio = SvSTATE (sv)->prio;
832	prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
833
834	prio = prio > PRIO_MAX ? PRIO_MAX
835	: prio < PRIO_MIN ? PRIO_MIN
836	: prio;
837		872
838	av_push (coro_ready [prio - PRIO_MIN], sv);	873	av_push (coro_ready [prio - PRIO_MIN], sv);
839	coro_nready++;	874	coro_nready++;
840	}	875	}
841		876
842	static SV *	877	static SV *
843	coro_deq (pTHX_ int min_prio)	878	coro_deq (int min_prio)
844	{	879	{
845	int prio = PRIO_MAX - PRIO_MIN;	880	int prio = PRIO_MAX - PRIO_MIN;
846		881
847	min_prio -= PRIO_MIN;	882	min_prio -= PRIO_MIN;
848	if (min_prio < 0)	883	if (min_prio < 0)
849	min_prio = 0;	884	min_prio = 0;
850		885
851	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	886	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
852	if (av_len (coro_ready[prio]) >= 0)	887	if (AvFILLp (coro_ready [prio]) >= 0)
853	{	888	{
854	coro_nready--;	889	coro_nready--;
855	return av_shift (coro_ready[prio]);	890	return av_shift (coro_ready [prio]);
856	}	891	}
857		892
858	return 0;	893	return 0;
859	}	894	}
860		895
…		…
865		900
866	if (SvROK (coro))	901	if (SvROK (coro))
867	coro = SvRV (coro);	902	coro = SvRV (coro);
868		903
869	LOCK;	904	LOCK;
870	coro_enq (aTHX_ SvREFCNT_inc (coro));	905	coro_enq (SvREFCNT_inc (coro));
871	UNLOCK;	906	UNLOCK;
872	}	907	}
873		908
874	static void	909	static void
		910	prepare_schedule (struct transfer_args *ta)
		911	{
		912	SV current, prev, *next;
		913
		914	LOCK;
		915
		916	current = GvSV (coro_current);
		917
		918	for (;;)
		919	{
		920	LOCK;
		921
		922	next = coro_deq (PRIO_MIN);
		923
		924	if (next)
		925	break;
		926
		927	UNLOCK;
		928
		929	{
		930	dSP;
		931
		932	ENTER;
		933	SAVETMPS;
		934
		935	PUSHMARK (SP);
		936	PUTBACK;
		937	call_sv (GvSV (coro_idle), G_DISCARD);
		938
		939	FREETMPS;
		940	LEAVE;
		941	}
		942	}
		943
		944	prev = SvRV (current);
		945	SvRV (current) = next;
		946
		947	/* free this only after the transfer */
		948	free_coro_mortal ();
		949	coro_mortal = prev;
		950
		951	ta->prev = SvSTATE (prev);
		952	ta->next = SvSTATE (next);
		953	ta->flags = TRANSFER_SAVE_ALL;
		954
		955	UNLOCK;
		956	}
		957
		958	static void
		959	prepare_cede (struct transfer_args *ta)
		960	{
		961	LOCK;
		962	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
		963	UNLOCK;
		964
		965	prepare_schedule (ta);
		966	}
		967
		968	static void
875	api_schedule (void)	969	api_schedule (void)
876	{	970	{
877	dTHX;	971	dTHX;
		972	struct transfer_args ta;
878		973
879	SV prev, next;	974	prepare_schedule (&ta);
880		975	TRANSFER (ta);
881	LOCK;
882
883	prev = SvRV (GvSV (coro_current));
884	next = coro_deq (aTHX_ PRIO_MIN);
885
886	if (!next)
887	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
888
889	/* free this only after the transfer */
890	coro_mortal = prev;
891	SV_CORO (prev, "Coro::schedule");
892
893	SvRV (GvSV (coro_current)) = next;
894
895	SV_CORO (next, "Coro::schedule");
896
897	UNLOCK;
898
899	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
900	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
901	}	976	}
902		977
903	static void	978	static void
904	api_cede (void)	979	api_cede (void)
905	{	980	{
906	dTHX;	981	dTHX;
		982	struct transfer_args ta;
907		983
908	LOCK;	984	prepare_cede (&ta);
909	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));	985	TRANSFER (ta);
910	UNLOCK;
911
912	api_schedule ();
913	}	986	}
914		987
915	MODULE = Coro::State PACKAGE = Coro::State	988	MODULE = Coro::State PACKAGE = Coro::State
916		989
917	PROTOTYPES: ENABLE	990	PROTOTYPES: DISABLE
918		991
919	BOOT:	992	BOOT:
920	{ /* {} necessary for stoopid perl-5.6.x */	993	{
921	#ifdef USE_ITHREADS	994	#ifdef USE_ITHREADS
922	MUTEX_INIT (&coro_mutex);	995	MUTEX_INIT (&coro_mutex);
923	#endif	996	#endif
924	BOOT_PAGESIZE;	997	BOOT_PAGESIZE;
925		998
926	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
927	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
928	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	999	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
929		1000
930	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1001	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
931	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1002	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
932	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1003	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
933	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
934		1004
935	main_mainstack = PL_mainstack;	1005	main_mainstack = PL_mainstack;
936		1006
937	coroapi.ver = CORO_API_VERSION;	1007	coroapi.ver = CORO_API_VERSION;
938	coroapi.transfer = api_transfer;	1008	coroapi.transfer = api_transfer;
939	}
940		1009
941	Coro::State	1010	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
942	_newprocess(args)	1011	}
943	SV * args	1012
944	PROTOTYPE: $	1013	SV *
		1014	new (char *klass, ...)
945	CODE:	1015	CODE:
946	Coro__State coro;	1016	{
		1017	struct coro *coro;
		1018	HV *hv;
		1019	int i;
947		1020
948	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
949	croak ("Coro::State::_newprocess expects an arrayref");
950
951	Newz (0, coro, 1, struct coro);	1021	Newz (0, coro, 1, struct coro);
		1022	coro->args = newAV ();
952		1023
953	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	1024	hv = newHV ();
		1025	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
		1026	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
		1027
		1028	for (i = 1; i < items; i++)
		1029	av_push (coro->args, newSVsv (ST (i)));
		1030
954	/coro->mainstack = 0; //actual work is done inside transfer /	1031	/coro->mainstack = 0; //actual work is done inside transfer /
955	/coro->stack = 0;/	1032	/coro->stack = 0;/
956		1033	}
957	RETVAL = coro;
958	OUTPUT:	1034	OUTPUT:
959	RETVAL	1035	RETVAL
960		1036
961	void	1037	void
962	transfer(prev, next, flags)	1038	_set_stacklevel (...)
963	SV *prev	1039	ALIAS:
964	SV *next	1040	Coro::State::transfer = 1
965	int flags	1041	Coro::schedule = 2
966	PROTOTYPE: @	1042	Coro::cede = 3
		1043	Coro::Cont::yield = 4
967	CODE:	1044	CODE:
968	PUTBACK;	1045	{
969	SV_CORO (next, "Coro::transfer");	1046	struct transfer_args ta;
970	SV_CORO (prev, "Coro::transfer");	1047
971	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	1048	switch (ix)
972	SPAGAIN;	1049	{
		1050	case 0:
		1051	ta.prev = (struct coro )INT2PTR (coro_stack , SvIV (ST (0)));
		1052	ta.next = 0;
		1053	ta.flags = TRANSFER_SET_STACKLEVEL;
		1054	break;
		1055
		1056	case 1:
		1057	if (items != 3)
		1058	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);
		1059
		1060	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));
		1061	break;
		1062
		1063	case 2:
		1064	prepare_schedule (&ta);
		1065	break;
		1066
		1067	case 3:
		1068	prepare_cede (&ta);
		1069	break;
		1070
		1071	case 4:
		1072	{
		1073	SV *yieldstack;
		1074	SV *sv;
		1075	AV *defav = GvAV (PL_defgv);
		1076
		1077	yieldstack = *hv_fetch (
		1078	(HV *)SvRV (GvSV (coro_current)),
		1079	"yieldstack", sizeof ("yieldstack") - 1,
		1080	0
		1081	);
		1082
		1083	/* set up @_ -- ugly */
		1084	av_clear (defav);
		1085	av_fill (defav, items - 1);
		1086	while (items--)
		1087	av_store (defav, items, SvREFCNT_inc (ST(items)));
		1088
		1089	sv = av_pop ((AV *)SvRV (yieldstack));
		1090	ta.prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
		1091	ta.next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
		1092	ta.flags = 0;
		1093	SvREFCNT_dec (sv);
		1094	}
		1095	break;
		1096
		1097	}
		1098
		1099	TRANSFER (ta);
		1100	}
973		1101
974	void	1102	void
975	DESTROY(coro)	1103	_clone_state_from (SV dst, SV src)
976	Coro::State coro	1104	CODE:
977	CODE:	1105	{
		1106	struct coro *coro_src = SvSTATE (src);
978		1107
979	if (coro->mainstack && coro->mainstack != main_mainstack)	1108	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
980	{
981	struct coro temp;
982		1109
983	PUTBACK;	1110	++coro_src->refcnt;
984	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);	1111	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
985	LOAD (aTHX_ coro);	1112	}
986	SPAGAIN;
987
988	destroy_stacks (aTHX);
989
990	LOAD ((&temp)); /* this will get rid of defsv etc.. */
991	SPAGAIN;
992
993	coro->mainstack = 0;
994	}
995
996	deallocate_stack (coro);
997	SvREFCNT_dec (coro->args);
998	Safefree (coro);
999		1113
1000	void	1114	void
		1115	_nonlocal_goto (IV nextop)
		1116	CODE:
		1117	/* uuh, somebody will kill me again for this */
		1118	PL_op->op_next = INT2PTR (OP *, nextop);
		1119
		1120	void
1001	_exit(code)	1121	_exit (code)
1002	int code	1122	int code
1003	PROTOTYPE: $	1123	PROTOTYPE: $
1004	CODE:	1124	CODE:
1005	_exit (code);	1125	_exit (code);
1006		1126
1007	MODULE = Coro::State PACKAGE = Coro::Cont
1008
1009	void
1010	yield(...)
1011	PROTOTYPE: @
1012	CODE:
1013	SV *yieldstack;
1014	SV *sv;
1015	AV *defav = GvAV (PL_defgv);
1016	struct coro prev, next;
1017
1018	yieldstack = *hv_fetch (
1019	(HV *)SvRV (GvSV (coro_current)),
1020	"yieldstack", sizeof ("yieldstack") - 1,
1021	0
1022	);
1023
1024	/* set up @_ -- ugly */
1025	av_clear (defav);
1026	av_fill (defav, items - 1);
1027	while (items--)
1028	av_store (defav, items, SvREFCNT_inc (ST(items)));
1029
1030	sv = av_pop ((AV *)SvRV (yieldstack));
1031	prev = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0))));
1032	next = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0))));
1033	SvREFCNT_dec (sv);
1034
1035	transfer (aTHX_ prev, next, 0);
1036
1037	MODULE = Coro::State PACKAGE = Coro	1127	MODULE = Coro::State PACKAGE = Coro
1038		1128
1039	BOOT:	1129	BOOT:
1040	{	1130	{
1041	int i;	1131	int i;
		1132
1042	HV *stash = gv_stashpv ("Coro", TRUE);	1133	coro_stash = gv_stashpv ("Coro", TRUE);
1043		1134
1044	newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));	1135	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1045	newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1136	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1046	newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1137	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1047	newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));	1138	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1048	newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1139	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1049	newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));	1140	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1050		1141
1051	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1142	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
1052	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1143	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
1053		1144
1054	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1145	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
…		…
1067	sv_setiv (sv, (IV)&coroapi);	1158	sv_setiv (sv, (IV)&coroapi);
1068	SvREADONLY_on (sv);	1159	SvREADONLY_on (sv);
1069	}	1160	}
1070	}	1161	}
1071		1162
1072	#if !PERL_MICRO	1163	int
		1164	prio (Coro::State coro, int newprio = 0)
		1165	ALIAS:
		1166	nice = 1
		1167	CODE:
		1168	{
		1169	RETVAL = coro->prio;
		1170
		1171	if (items > 1)
		1172	{
		1173	if (ix)
		1174	newprio += coro->prio;
		1175
		1176	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		1177	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		1178
		1179	coro->prio = newprio;
		1180	}
		1181	}
1073		1182
1074	void	1183	void
1075	ready(self)	1184	ready (SV *self)
1076	SV * self
1077	PROTOTYPE: $	1185	PROTOTYPE: $
1078	CODE:	1186	CODE:
1079	api_ready (self);	1187	api_ready (self);
1080		1188
1081	#endif
1082
1083	int	1189	int
1084	nready(...)	1190	nready (...)
1085	PROTOTYPE:	1191	PROTOTYPE:
1086	CODE:	1192	CODE:
1087	RETVAL = coro_nready;	1193	RETVAL = coro_nready;
1088	OUTPUT:	1194	OUTPUT:
1089	RETVAL	1195	RETVAL
1090		1196
1091	void	1197	MODULE = Coro::State PACKAGE = Coro::AIO
1092	schedule(...)
1093	PROTOTYPE:
1094	CODE:
1095	api_schedule ();
1096		1198
1097	void
1098	cede(...)
1099	PROTOTYPE:
1100	CODE:
1101	api_cede ();
1102
1103	# and these are hacks
1104	SV *	1199	SV *
1105	_aio_get_state ()	1200	_get_state ()
1106	CODE:	1201	CODE:
1107	{	1202	{
1108	struct {	1203	struct {
1109	int errorno;	1204	int errorno;
1110	int laststype;	1205	int laststype;
…		…
1121	}	1216	}
1122	OUTPUT:	1217	OUTPUT:
1123	RETVAL	1218	RETVAL
1124		1219
1125	void	1220	void
1126	_aio_set_state (char *data_)	1221	_set_state (char *data_)
1127	PROTOTYPE: $	1222	PROTOTYPE: $
1128	CODE:	1223	CODE:
1129	{	1224	{
1130	struct {	1225	struct {
1131	int errorno;	1226	int errorno;

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Comparing Coro/Coro/State.xs (file contents): Revision 1.81 by root, Fri Nov 3 00:56:03 2006 UTC vs. Revision 1.98 by root, Sun Nov 26 21:25:53 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.81 by root, Fri Nov 3 00:56:03 2006 UTC vs.
Revision 1.98 by root, Sun Nov 26 21:25:53 2006 UTC