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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.80 by root, Thu Nov 2 20:00:00 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 top-level JMPENV for each coroutine, needed to catch dies. */	103	/* the c coroutine allocated to this perl coroutine, if any */
106	JMPENV start_env;
107
108	/* the optional C context */
109	coro_stack *stack;	104	coro_stack *stack;
110	void *cursp;	105
		106	/* data associated with this coroutine (initial args) */
		107	AV *args;
111	int gencnt;	108	int refcnt;
112		109
113	/* optionally saved, might be zero */	110	/* optionally saved, might be zero */
114	AV *defav;	111	AV *defav;
115	SV *defsv;	112	SV *defsv;
116	SV *errsv;	113	SV *errsv;
…		…
146	OP **retstack;	143	OP **retstack;
147	I32 retstack_ix;	144	I32 retstack_ix;
148	I32 retstack_max;	145	I32 retstack_max;
149	PMOP *curpm;	146	PMOP *curpm;
150	COP *curcop;	147	COP *curcop;
151	JMPENV *top_env;
152		148
153	/* data associated with this coroutine (initial args) */	149	/* coro process data */
154	AV *args;	150	int prio;
155	};	151	};
156		152
157	typedef struct coro *Coro__State;	153	typedef struct coro *Coro__State;
158	typedef struct coro *Coro__State_or_hashref;	154	typedef struct coro *Coro__State_or_hashref;
159		155
160	static AV *	156	static AV *
161	coro_clone_padlist (pTHX_ CV *cv)	157	coro_clone_padlist (CV *cv)
162	{	158	{
163	AV *padlist = CvPADLIST (cv);	159	AV *padlist = CvPADLIST (cv);
164	AV newpadlist, newpad;	160	AV newpadlist, newpad;
165		161
166	newpadlist = newAV ();	162	newpadlist = newAV ();
…		…
178		174
179	return newpadlist;	175	return newpadlist;
180	}	176	}
181		177
182	static void	178	static void
183	free_padlist (pTHX_ AV *padlist)	179	free_padlist (AV *padlist)
184	{	180	{
185	/* may be during global destruction */	181	/* may be during global destruction */
186	if (SvREFCNT (padlist))	182	if (SvREFCNT (padlist))
187	{	183	{
188	I32 i = AvFILLp (padlist);	184	I32 i = AvFILLp (padlist);
…		…
209	AV *padlist;	205	AV *padlist;
210	AV av = (AV )mg->mg_obj;	206	AV av = (AV )mg->mg_obj;
211		207
212	/* casting is fun. */	208	/* casting is fun. */
213	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	209	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
214	free_padlist (aTHX_ padlist);	210	free_padlist (padlist);
215		211
216	SvREFCNT_dec (av);	212	SvREFCNT_dec (av);
217		213
218	return 0;	214	return 0;
219	}	215	}
…		…
222		218
223	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	219	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
224		220
225	/* the next two functions merely cache the padlists */	221	/* the next two functions merely cache the padlists */
226	static void	222	static void
227	get_padlist (pTHX_ CV *cv)	223	get_padlist (CV *cv)
228	{	224	{
229	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	225	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
230		226
231	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	227	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
232	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	228	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
233	else	229	else
234	{	230	{
235	#if 0	231	#if 0
236	/* this should work - but it doesn't :( */	232	/* this is probably cleaner, but also slower? */
237	CV *cp = Perl_cv_clone (aTHX_ cv);	233	CV *cp = Perl_cv_clone (cv);
238	CvPADLIST (cv) = CvPADLIST (cp);	234	CvPADLIST (cv) = CvPADLIST (cp);
239	CvPADLIST (cp) = 0;	235	CvPADLIST (cp) = 0;
240	SvREFCNT_dec (cp);	236	SvREFCNT_dec (cp);
241	#else	237	#else
242	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	238	CvPADLIST (cv) = coro_clone_padlist (cv);
243	#endif	239	#endif
244	}	240	}
245	}	241	}
246		242
247	static void	243	static void
248	put_padlist (pTHX_ CV *cv)	244	put_padlist (CV *cv)
249	{	245	{
250	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	246	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
251		247
252	if (!mg)	248	if (!mg)
253	{	249	{
…		…
261	}	257	}
262		258
263	#define SB do {	259	#define SB do {
264	#define SE } while (0)	260	#define SE } while (0)
265		261
266	#define LOAD(state) load_state(aTHX_ (state));	262	#define LOAD(state) load_state((state));
267	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	263	#define SAVE(state,flags) save_state((state),(flags));
268		264
269	#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
270		266
271	static void	267	static void
272	load_state(pTHX_ Coro__State c)	268	load_state(Coro__State c)
273	{	269	{
274	PL_dowarn = c->dowarn;	270	PL_dowarn = c->dowarn;
275	PL_in_eval = c->in_eval;	271	PL_in_eval = c->in_eval;
276		272
277	PL_curstackinfo = c->curstackinfo;	273	PL_curstackinfo = c->curstackinfo;
…		…
302	PL_retstack_ix = c->retstack_ix;	298	PL_retstack_ix = c->retstack_ix;
303	PL_retstack_max = c->retstack_max;	299	PL_retstack_max = c->retstack_max;
304	#endif	300	#endif
305	PL_curpm = c->curpm;	301	PL_curpm = c->curpm;
306	PL_curcop = c->curcop;	302	PL_curcop = c->curcop;
307	PL_top_env = c->top_env;
308		303
309	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	304	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
310	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	305	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
311	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	306	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
312		307
…		…
319	{	314	{
320	AV padlist = (AV )POPs;	315	AV padlist = (AV )POPs;
321		316
322	if (padlist)	317	if (padlist)
323	{	318	{
324	put_padlist (aTHX_ cv); /* mark this padlist as available */	319	put_padlist (cv); /* mark this padlist as available */
325	CvPADLIST(cv) = padlist;	320	CvPADLIST(cv) = padlist;
326	}	321	}
327		322
328	++CvDEPTH(cv);	323	++CvDEPTH(cv);
329	}	324	}
…		…
331	PUTBACK;	326	PUTBACK;
332	}	327	}
333	}	328	}
334		329
335	static void	330	static void
336	save_state(pTHX_ Coro__State c, int flags)	331	save_state(Coro__State c, int flags)
337	{	332	{
338	{	333	{
339	dSP;	334	dSP;
340	I32 cxix = cxstack_ix;	335	I32 cxix = cxstack_ix;
341	PERL_CONTEXT *ccstk = cxstack;	336	PERL_CONTEXT *ccstk = cxstack;
…		…
369	}	364	}
370		365
371	PUSHs ((SV *)CvPADLIST(cv));	366	PUSHs ((SV *)CvPADLIST(cv));
372	PUSHs ((SV *)cv);	367	PUSHs ((SV *)cv);
373		368
374	get_padlist (aTHX_ cv);	369	get_padlist (cv);
375	}	370	}
376	}	371	}
377	#ifdef CXt_FORMAT	372	#ifdef CXt_FORMAT
378	else if (CxTYPE(cx) == CXt_FORMAT)	373	else if (CxTYPE(cx) == CXt_FORMAT)
379	{	374	{
…		…
430	c->retstack_ix = PL_retstack_ix;	425	c->retstack_ix = PL_retstack_ix;
431	c->retstack_max = PL_retstack_max;	426	c->retstack_max = PL_retstack_max;
432	#endif	427	#endif
433	c->curpm = PL_curpm;	428	c->curpm = PL_curpm;
434	c->curcop = PL_curcop;	429	c->curcop = PL_curcop;
435	c->top_env = PL_top_env;
436	}	430	}
437		431
438	/*	432	/*
439	* allocate various perl stacks. This is an exact copy	433	* allocate various perl stacks. This is an exact copy
440	* of perl.c:init_stacks, except that it uses less memory	434	* of perl.c:init_stacks, except that it uses less memory
441	* on the (sometimes correct) assumption that coroutines do	435	* on the (sometimes correct) assumption that coroutines do
442	* not usually need a lot of stackspace.	436	* not usually need a lot of stackspace.
443	*/	437	*/
444	static void	438	static void
445	coro_init_stacks (pTHX)	439	coro_init_stacks ()
446	{	440	{
447	LOCK;	441	LOCK;
448		442
449	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	443	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
450	PL_curstackinfo->si_type = PERLSI_MAIN;	444	PL_curstackinfo->si_type = PERLSI_MAIN;
…		…
487		481
488	/*	482	/*
489	* destroy the stacks, the callchain etc...	483	* destroy the stacks, the callchain etc...
490	*/	484	*/
491	static void	485	static void
492	destroy_stacks(pTHX)	486	destroy_stacks()
493	{	487	{
494	if (!IN_DESTRUCT)	488	if (!IN_DESTRUCT)
495	{	489	{
496	/* is this ugly, I ask? */	490	/* is this ugly, I ask? */
497	LEAVE_SCOPE (0);	491	LEAVE_SCOPE (0);
…		…
534	Safefree (PL_retstack);	528	Safefree (PL_retstack);
535	#endif	529	#endif
536	}	530	}
537		531
538	static void	532	static void
539	allocate_stack (Coro__State ctx, int alloc)	533	setup_coro (struct coro *coro)
540	{
541	coro_stack *stack;
542
543	New (0, stack, 1, coro_stack);
544
545	stack->refcnt = 1;
546	stack->usecnt = 1;
547	stack->gencnt = ctx->gencnt = 0;
548
549	if (alloc)
550	{
551	#if HAVE_MMAP
552	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */
553	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
554	if (stack->sptr != (void *)-1)
555	{
556	# if STACKGUARD
557	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
558	# endif
559	}
560	else
561	#endif
562	{
563	stack->ssize = - (STACKSIZE * (long)sizeof (long));
564	New (0, stack->sptr, STACKSIZE, long);
565	}
566	}
567	else
568	stack->sptr = 0;
569
570	ctx->stack = stack;
571	}
572
573	static void
574	deallocate_stack (Coro__State ctx)
575	{
576	coro_stack *stack = ctx->stack;
577
578	ctx->stack = 0;
579
580	if (stack)
581	{
582	if (!--stack->refcnt)
583	{
584	#ifdef HAVE_MMAP
585	if (stack->ssize > 0 && stack->sptr)
586	munmap (stack->sptr, stack->ssize);
587	else
588	#endif
589	Safefree (stack->sptr);
590
591	Safefree (stack);
592	}
593	else if (ctx->gencnt == stack->gencnt)
594	--stack->usecnt;
595	}
596	}
597
598	static void
599	setup_coro (void *arg)
600	{	534	{
601	/*	535	/*
602	* emulate part of the perl startup here.	536	* emulate part of the perl startup here.
603	*/	537	*/
604	dTHX;	538	dTHX;
605	dSP;	539	dSP;
606	Coro__State ctx = (Coro__State)arg;	540	UNOP myop;
607	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);	541	SV sub_init = (SV )get_cv ("Coro::State::coro_init", FALSE);
608		542
609	coro_init_stacks (aTHX);	543	coro_init_stacks ();
610	/PL_curcop = 0;/	544	/PL_curcop = 0;/
611	/PL_in_eval = PL_in_eval;/ /* inherit */	545	/PL_in_eval = PL_in_eval;/ /* inherit */
612	SvREFCNT_dec (GvAV (PL_defgv));	546	SvREFCNT_dec (GvAV (PL_defgv));
613	GvAV (PL_defgv) = ctx->args; ctx->args = 0;	547	GvAV (PL_defgv) = coro->args; coro->args = 0;
614		548
615	SPAGAIN;	549	SPAGAIN;
616		550
617	if (ctx->stack)
618	{
619	ctx->cursp = 0;
620
621	PUSHMARK(SP);
622	PUTBACK;
623	(void) call_sv (sub_init, G_VOID\|G_NOARGS\|G_EVAL);
624
625	if (SvTRUE (ERRSV))
626	croak (NULL);
627	else
628	croak ("FATAL: CCTXT coroutine returned!");
629	}
630	else
631	{
632	UNOP myop;
633
634	Zero(&myop, 1, UNOP);	551	Zero (&myop, 1, UNOP);
635	myop.op_next = Nullop;	552	myop.op_next = Nullop;
636	myop.op_flags = OPf_WANT_VOID;	553	myop.op_flags = OPf_WANT_VOID;
637		554
638	PL_op = (OP *)&myop;	555	PL_op = (OP *)&myop;
639		556
640	PUSHMARK(SP);	557	PUSHMARK(SP);
641	XPUSHs (sub_init);	558	XPUSHs (sub_init);
642	/*
643	* the next line is slightly wrong, as PL_op->op_next
644	* is actually being executed so we skip the first op.
645	* that doesn't matter, though, since it is only
646	* pp_nextstate and we never return...
647	* ah yes, and I don't care anyways ;)
648	*/
649	PUTBACK;	559	PUTBACK;
650	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	560	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
651	SPAGAIN;	561	SPAGAIN;
652		562
653	ENTER; /* necessary e.g. for dounwind */	563	ENTER; /* necessary e.g. for dounwind */
654	}
655	}	564	}
656		565
657	static void	566	static void
658	continue_coro (void *arg)	567	free_coro_mortal ()
659	{	568	{
660	/*
661	* this is a _very_ stripped down perl interpreter ;)
662	*/
663	dTHX;
664	Coro__State ctx = (Coro__State)arg;
665
666	PL_top_env = &ctx->start_env;
667
668	ctx->cursp = 0;
669	PL_op = PL_op->op_next;
670	CALLRUNOPS(aTHX);
671
672	abort ();
673	}
674
675	static void
676	transfer (pTHX_ struct coro prev, struct coro next, int flags)
677	{
678	dSTACKLEVEL;
679
680	if (prev != next)
681	{
682	if (next->mainstack)
683	{
684	LOCK;
685	SAVE (prev, flags);
686	LOAD (next);
687	UNLOCK;
688
689	/* mark this state as in-use */
690	next->mainstack = 0;
691	next->tmps_ix = -2;
692
693	/* stacklevel changed? if yes, grab the stack for us! */
694	if (flags & TRANSFER_SAVE_CCTXT)
695	{
696	if (!prev->stack)
697	allocate_stack (prev, 0);
698	else if (prev->cursp != stacklevel
699	&& prev->stack->usecnt > 1)
700	{
701	prev->gencnt = ++prev->stack->gencnt;
702	prev->stack->usecnt = 1;
703	}
704
705	/* has our stack been invalidated? */
706	if (next->stack && next->stack->gencnt != next->gencnt)
707	{
708	deallocate_stack (next);
709	allocate_stack (next, 1);
710	coro_create (&(next->stack->cctx),
711	continue_coro, (void *)next,
712	next->stack->sptr, labs (next->stack->ssize));
713	}
714
715	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
716	prev->cursp = stacklevel;
717	/* don't add any code here */
718	}
719	else
720	next->cursp = stacklevel;
721	}
722	else if (next->tmps_ix == -2)
723	croak ("tried to transfer to running coroutine");
724	else
725	{
726	LOCK;
727	SAVE (prev, -1); /* first get rid of the old state */
728	UNLOCK;
729
730	if (flags & TRANSFER_SAVE_CCTXT)
731	{
732	if (!prev->stack)
733	allocate_stack (prev, 0);
734
735	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
736	{
737	PL_top_env = &next->start_env;
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	/* same as JMPENV_BOOTSTRAP */
958	/* we might be able to recycle start_env, but safe is safe */
959	/Zero (&coro->start_env, 1, JMPENV);/
960	coro->start_env.je_ret = -1;
961	coro->start_env.je_mustcatch = TRUE;
962
963	RETVAL = coro;
964	OUTPUT:	1034	OUTPUT:
965	RETVAL	1035	RETVAL
966		1036
967	void	1037	void
968	transfer(prev, next, flags)	1038	_set_stacklevel (...)
969	SV *prev	1039	ALIAS:
970	SV *next	1040	Coro::State::transfer = 1
971	int flags	1041	Coro::schedule = 2
972	PROTOTYPE: @	1042	Coro::cede = 3
		1043	Coro::Cont::yield = 4
973	CODE:	1044	CODE:
974	PUTBACK;	1045	{
975	SV_CORO (next, "Coro::transfer");	1046	struct transfer_args ta;
976	SV_CORO (prev, "Coro::transfer");	1047
977	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	1048	switch (ix)
978	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	}
979		1101
980	void	1102	void
981	DESTROY(coro)	1103	_clone_state_from (SV dst, SV src)
982	Coro::State coro	1104	CODE:
983	CODE:	1105	{
		1106	struct coro *coro_src = SvSTATE (src);
984		1107
985	if (coro->mainstack && coro->mainstack != main_mainstack)	1108	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
986	{
987	struct coro temp;
988		1109
989	PUTBACK;	1110	++coro_src->refcnt;
990	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;
991	LOAD (aTHX_ coro);	1112	}
992	SPAGAIN;
993
994	destroy_stacks (aTHX);
995
996	LOAD ((&temp)); /* this will get rid of defsv etc.. */
997	SPAGAIN;
998
999	coro->mainstack = 0;
1000	}
1001
1002	deallocate_stack (coro);
1003	SvREFCNT_dec (coro->args);
1004	Safefree (coro);
1005		1113
1006	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
1007	_exit(code)	1121	_exit (code)
1008	int code	1122	int code
1009	PROTOTYPE: $	1123	PROTOTYPE: $
1010	CODE:	1124	CODE:
1011	_exit (code);	1125	_exit (code);
1012		1126
1013	MODULE = Coro::State PACKAGE = Coro::Cont
1014
1015	# this is slightly dirty (should expose a c-level api)
1016
1017	void
1018	yield(...)
1019	PROTOTYPE: @
1020	CODE:
1021	SV *yieldstack;
1022	SV *sv;
1023	AV *defav = GvAV (PL_defgv);
1024	struct coro prev, next;
1025
1026	yieldstack = *hv_fetch (
1027	(HV *)SvRV (GvSV (coro_current)),
1028	"yieldstack", sizeof ("yieldstack") - 1,
1029	0
1030	);
1031
1032	/* set up @_ -- ugly */
1033	av_clear (defav);
1034	av_fill (defav, items - 1);
1035	while (items--)
1036	av_store (defav, items, SvREFCNT_inc (ST(items)));
1037
1038	sv = av_pop ((AV *)SvRV (yieldstack));
1039	prev = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0))));
1040	next = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0))));
1041	SvREFCNT_dec (sv);
1042
1043	transfer (aTHX_ prev, next, 0);
1044
1045	MODULE = Coro::State PACKAGE = Coro	1127	MODULE = Coro::State PACKAGE = Coro
1046		1128
1047	# this is slightly dirty (should expose a c-level api)
1048
1049	BOOT:	1129	BOOT:
1050	{	1130	{
1051	int i;	1131	int i;
		1132
1052	HV *stash = gv_stashpv ("Coro", TRUE);	1133	coro_stash = gv_stashpv ("Coro", TRUE);
1053		1134
1054	newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));	1135	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1055	newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1136	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1056	newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1137	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1057	newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));	1138	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1058	newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1139	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1059	newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));	1140	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1060		1141
1061	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1142	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
1062	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1143	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
1063		1144
1064	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1145	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
…		…
1072	coroapi.ready = api_ready;	1153	coroapi.ready = api_ready;
1073	coroapi.nready = &coro_nready;	1154	coroapi.nready = &coro_nready;
1074	coroapi.current = coro_current;	1155	coroapi.current = coro_current;
1075		1156
1076	GCoroAPI = &coroapi;	1157	GCoroAPI = &coroapi;
1077	sv_setiv(sv, (IV)&coroapi);	1158	sv_setiv (sv, (IV)&coroapi);
1078	SvREADONLY_on(sv);	1159	SvREADONLY_on (sv);
1079	}	1160	}
1080	}	1161	}
1081		1162
1082	#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	}
1083		1182
1084	void	1183	void
1085	ready(self)	1184	ready (SV *self)
1086	SV * self
1087	PROTOTYPE: $	1185	PROTOTYPE: $
1088	CODE:	1186	CODE:
1089	api_ready (self);	1187	api_ready (self);
1090		1188
1091	#endif
1092
1093	int	1189	int
1094	nready(...)	1190	nready (...)
1095	PROTOTYPE:	1191	PROTOTYPE:
1096	CODE:	1192	CODE:
1097	RETVAL = coro_nready;	1193	RETVAL = coro_nready;
1098	OUTPUT:	1194	OUTPUT:
1099	RETVAL	1195	RETVAL
1100		1196
1101	void	1197	MODULE = Coro::State PACKAGE = Coro::AIO
1102	schedule(...)
1103	PROTOTYPE:
1104	CODE:
1105	api_schedule ();
1106		1198
1107	void
1108	cede(...)
1109	PROTOTYPE:
1110	CODE:
1111	api_cede ();
1112
1113	# and these are hacks
1114	SV *	1199	SV *
1115	_aio_get_state ()	1200	_get_state ()
1116	CODE:	1201	CODE:
1117	{	1202	{
1118	struct {	1203	struct {
1119	int errorno;	1204	int errorno;
1120	int laststype;	1205	int laststype;
…		…
1131	}	1216	}
1132	OUTPUT:	1217	OUTPUT:
1133	RETVAL	1218	RETVAL
1134		1219
1135	void	1220	void
1136	_aio_set_state (char *data_)	1221	_set_state (char *data_)
1137	PROTOTYPE: $	1222	PROTOTYPE: $
1138	CODE:	1223	CODE:
1139	{	1224	{
1140	struct {	1225	struct {
1141	int errorno;	1226	int errorno;

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Comparing Coro/Coro/State.xs (file contents): Revision 1.80 by root, Thu Nov 2 20:00:00 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 1.80 by root, Thu Nov 2 20:00:00 2006 UTC vs.
Revision 1.98 by root, Sun Nov 26 21:25:53 2006 UTC