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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.87 by root, Fri Nov 24 13:40:36 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	/* coro process data */	149	/* coro process data */
151	int prio;	150	int prio;
152
153	/* data associated with this coroutine (initial args) */
154	AV *args;
155	int refcnt;
156	};	151	};
157		152
158	typedef struct coro *Coro__State;	153	typedef struct coro *Coro__State;
159	typedef struct coro *Coro__State_or_hashref;	154	typedef struct coro *Coro__State_or_hashref;
160		155
161	static AV *	156	static AV *
162	coro_clone_padlist (pTHX_ CV *cv)	157	coro_clone_padlist (CV *cv)
163	{	158	{
164	AV *padlist = CvPADLIST (cv);	159	AV *padlist = CvPADLIST (cv);
165	AV newpadlist, newpad;	160	AV newpadlist, newpad;
166		161
167	newpadlist = newAV ();	162	newpadlist = newAV ();
…		…
179		174
180	return newpadlist;	175	return newpadlist;
181	}	176	}
182		177
183	static void	178	static void
184	free_padlist (pTHX_ AV *padlist)	179	free_padlist (AV *padlist)
185	{	180	{
186	/* may be during global destruction */	181	/* may be during global destruction */
187	if (SvREFCNT (padlist))	182	if (SvREFCNT (padlist))
188	{	183	{
189	I32 i = AvFILLp (padlist);	184	I32 i = AvFILLp (padlist);
…		…
210	AV *padlist;	205	AV *padlist;
211	AV av = (AV )mg->mg_obj;	206	AV av = (AV )mg->mg_obj;
212		207
213	/* casting is fun. */	208	/* casting is fun. */
214	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	209	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
215	free_padlist (aTHX_ padlist);	210	free_padlist (padlist);
216		211
217	SvREFCNT_dec (av);	212	SvREFCNT_dec (av);
218		213
219	return 0;	214	return 0;
220	}	215	}
…		…
223		218
224	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	219	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
225		220
226	/* the next two functions merely cache the padlists */	221	/* the next two functions merely cache the padlists */
227	static void	222	static void
228	get_padlist (pTHX_ CV *cv)	223	get_padlist (CV *cv)
229	{	224	{
230	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	225	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
231		226
232	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	227	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
233	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	228	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
234	else	229	else
235	{	230	{
236	#if 0	231	#if 0
237	/* this should work - but it doesn't :( */	232	/* this is probably cleaner, but also slower? */
238	CV *cp = Perl_cv_clone (aTHX_ cv);	233	CV *cp = Perl_cv_clone (cv);
239	CvPADLIST (cv) = CvPADLIST (cp);	234	CvPADLIST (cv) = CvPADLIST (cp);
240	CvPADLIST (cp) = 0;	235	CvPADLIST (cp) = 0;
241	SvREFCNT_dec (cp);	236	SvREFCNT_dec (cp);
242	#else	237	#else
243	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	238	CvPADLIST (cv) = coro_clone_padlist (cv);
244	#endif	239	#endif
245	}	240	}
246	}	241	}
247		242
248	static void	243	static void
249	put_padlist (pTHX_ CV *cv)	244	put_padlist (CV *cv)
250	{	245	{
251	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	246	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
252		247
253	if (!mg)	248	if (!mg)
254	{	249	{
…		…
262	}	257	}
263		258
264	#define SB do {	259	#define SB do {
265	#define SE } while (0)	260	#define SE } while (0)
266		261
267	#define LOAD(state) load_state(aTHX_ (state));	262	#define LOAD(state) load_state((state));
268	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	263	#define SAVE(state,flags) save_state((state),(flags));
269		264
270	#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
271		266
272	static void	267	static void
273	load_state(pTHX_ Coro__State c)	268	load_state(Coro__State c)
274	{	269	{
275	PL_dowarn = c->dowarn;	270	PL_dowarn = c->dowarn;
276	PL_in_eval = c->in_eval;	271	PL_in_eval = c->in_eval;
277		272
278	PL_curstackinfo = c->curstackinfo;	273	PL_curstackinfo = c->curstackinfo;
…		…
303	PL_retstack_ix = c->retstack_ix;	298	PL_retstack_ix = c->retstack_ix;
304	PL_retstack_max = c->retstack_max;	299	PL_retstack_max = c->retstack_max;
305	#endif	300	#endif
306	PL_curpm = c->curpm;	301	PL_curpm = c->curpm;
307	PL_curcop = c->curcop;	302	PL_curcop = c->curcop;
308	PL_top_env = c->top_env;
309		303
310	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	304	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
311	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	305	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
312	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	306	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
313		307
…		…
320	{	314	{
321	AV padlist = (AV )POPs;	315	AV padlist = (AV )POPs;
322		316
323	if (padlist)	317	if (padlist)
324	{	318	{
325	put_padlist (aTHX_ cv); /* mark this padlist as available */	319	put_padlist (cv); /* mark this padlist as available */
326	CvPADLIST(cv) = padlist;	320	CvPADLIST(cv) = padlist;
327	}	321	}
328		322
329	++CvDEPTH(cv);	323	++CvDEPTH(cv);
330	}	324	}
…		…
332	PUTBACK;	326	PUTBACK;
333	}	327	}
334	}	328	}
335		329
336	static void	330	static void
337	save_state(pTHX_ Coro__State c, int flags)	331	save_state(Coro__State c, int flags)
338	{	332	{
339	{	333	{
340	dSP;	334	dSP;
341	I32 cxix = cxstack_ix;	335	I32 cxix = cxstack_ix;
342	PERL_CONTEXT *ccstk = cxstack;	336	PERL_CONTEXT *ccstk = cxstack;
…		…
370	}	364	}
371		365
372	PUSHs ((SV *)CvPADLIST(cv));	366	PUSHs ((SV *)CvPADLIST(cv));
373	PUSHs ((SV *)cv);	367	PUSHs ((SV *)cv);
374		368
375	get_padlist (aTHX_ cv);	369	get_padlist (cv);
376	}	370	}
377	}	371	}
378	#ifdef CXt_FORMAT	372	#ifdef CXt_FORMAT
379	else if (CxTYPE(cx) == CXt_FORMAT)	373	else if (CxTYPE(cx) == CXt_FORMAT)
380	{	374	{
…		…
431	c->retstack_ix = PL_retstack_ix;	425	c->retstack_ix = PL_retstack_ix;
432	c->retstack_max = PL_retstack_max;	426	c->retstack_max = PL_retstack_max;
433	#endif	427	#endif
434	c->curpm = PL_curpm;	428	c->curpm = PL_curpm;
435	c->curcop = PL_curcop;	429	c->curcop = PL_curcop;
436	c->top_env = PL_top_env;
437	}	430	}
438		431
439	/*	432	/*
440	* allocate various perl stacks. This is an exact copy	433	* allocate various perl stacks. This is an exact copy
441	* of perl.c:init_stacks, except that it uses less memory	434	* of perl.c:init_stacks, except that it uses less memory
442	* on the (sometimes correct) assumption that coroutines do	435	* on the (sometimes correct) assumption that coroutines do
443	* not usually need a lot of stackspace.	436	* not usually need a lot of stackspace.
444	*/	437	*/
445	static void	438	static void
446	coro_init_stacks (pTHX)	439	coro_init_stacks ()
447	{	440	{
448	LOCK;	441	LOCK;
449		442
450	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	443	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
451	PL_curstackinfo->si_type = PERLSI_MAIN;	444	PL_curstackinfo->si_type = PERLSI_MAIN;
…		…
488		481
489	/*	482	/*
490	* destroy the stacks, the callchain etc...	483	* destroy the stacks, the callchain etc...
491	*/	484	*/
492	static void	485	static void
493	destroy_stacks(pTHX)	486	destroy_stacks()
494	{	487	{
495	if (!IN_DESTRUCT)	488	if (!IN_DESTRUCT)
496	{	489	{
497	/* is this ugly, I ask? */	490	/* is this ugly, I ask? */
498	LEAVE_SCOPE (0);	491	LEAVE_SCOPE (0);
…		…
535	Safefree (PL_retstack);	528	Safefree (PL_retstack);
536	#endif	529	#endif
537	}	530	}
538		531
539	static void	532	static void
540	allocate_stack (Coro__State ctx, int alloc)	533	setup_coro (struct coro *coro)
541	{
542	coro_stack *stack;
543
544	New (0, stack, 1, coro_stack);
545
546	stack->refcnt = 1;
547	stack->usecnt = 1;
548	stack->gencnt = ctx->gencnt = 0;
549
550	if (alloc)
551	{
552	#if HAVE_MMAP
553	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */
554	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
555	if (stack->sptr != (void *)-1)
556	{
557	# if STACKGUARD
558	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
559	# endif
560	}
561	else
562	#endif
563	{
564	stack->ssize = - (STACKSIZE * (long)sizeof (long));
565	New (0, stack->sptr, STACKSIZE, long);
566	}
567	}
568	else
569	stack->sptr = 0;
570
571	ctx->stack = stack;
572	}
573
574	static void
575	deallocate_stack (Coro__State ctx)
576	{
577	coro_stack *stack = ctx->stack;
578
579	ctx->stack = 0;
580
581	if (stack)
582	{
583	if (!--stack->refcnt)
584	{
585	#ifdef HAVE_MMAP
586	if (stack->ssize > 0 && stack->sptr)
587	munmap (stack->sptr, stack->ssize);
588	else
589	#endif
590	Safefree (stack->sptr);
591
592	Safefree (stack);
593	}
594	else if (ctx->gencnt == stack->gencnt)
595	--stack->usecnt;
596	}
597	}
598
599	static void
600	setup_coro (void *arg)
601	{	534	{
602	/*	535	/*
603	* emulate part of the perl startup here.	536	* emulate part of the perl startup here.
604	*/	537	*/
605	dTHX;	538	dTHX;
606	dSP;	539	dSP;
607	Coro__State ctx = (Coro__State)arg;	540	UNOP myop;
608	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);	541	SV sub_init = (SV )get_cv ("Coro::State::coro_init", FALSE);
609		542
610	coro_init_stacks (aTHX);	543	coro_init_stacks ();
611	/PL_curcop = 0;/	544	/PL_curcop = 0;/
612	/PL_in_eval = PL_in_eval;/ /* inherit */	545	/PL_in_eval = PL_in_eval;/ /* inherit */
613	SvREFCNT_dec (GvAV (PL_defgv));	546	SvREFCNT_dec (GvAV (PL_defgv));
614	GvAV (PL_defgv) = ctx->args; ctx->args = 0;	547	GvAV (PL_defgv) = coro->args; coro->args = 0;
615		548
616	SPAGAIN;	549	SPAGAIN;
617		550
618	if (ctx->stack)
619	{
620	ctx->cursp = 0;
621
622	PUSHMARK(SP);
623	PUTBACK;
624	(void) call_sv (sub_init, G_VOID\|G_NOARGS\|G_EVAL);
625
626	if (SvTRUE (ERRSV))
627	croak (NULL);
628	else
629	croak ("FATAL: CCTXT coroutine returned!");
630	}
631	else
632	{
633	UNOP myop;
634
635	Zero(&myop, 1, UNOP);	551	Zero (&myop, 1, UNOP);
636	myop.op_next = Nullop;	552	myop.op_next = Nullop;
637	myop.op_flags = OPf_WANT_VOID;	553	myop.op_flags = OPf_WANT_VOID;
638		554
639	PL_op = (OP *)&myop;	555	PL_op = (OP *)&myop;
640		556
641	PUSHMARK(SP);	557	PUSHMARK(SP);
642	XPUSHs (sub_init);	558	XPUSHs (sub_init);
643	/*
644	* the next line is slightly wrong, as PL_op->op_next
645	* is actually being executed so we skip the first op.
646	* that doesn't matter, though, since it is only
647	* pp_nextstate and we never return...
648	* ah yes, and I don't care anyways ;)
649	*/
650	PUTBACK;	559	PUTBACK;
651	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	560	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
652	SPAGAIN;	561	SPAGAIN;
653		562
654	ENTER; /* necessary e.g. for dounwind */	563	ENTER; /* necessary e.g. for dounwind */
655	}
656	}	564	}
657		565
658	static void	566	static void
659	continue_coro (void *arg)	567	free_coro_mortal ()
660	{	568	{
661	/*
662	* this is a _very_ stripped down perl interpreter ;)
663	*/
664	dTHX;
665	Coro__State ctx = (Coro__State)arg;
666
667	PL_top_env = &PL_start_env;
668
669	ctx->cursp = 0;
670	PL_op = PL_op->op_next;
671	CALLRUNOPS(aTHX);
672
673	abort ();
674	}
675
676	/* never call directly, always through the coro_state_transfer global variable */
677	static void
678	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)
679	{
680	dSTACKLEVEL;
681
682	if (prev != next)
683	{
684	/* has this coro been created yet? */
685	if (next->mainstack)
686	{
687	LOCK;
688	SAVE (prev, flags);
689	LOAD (next);
690	UNLOCK;
691
692	/* mark this state as in-use */
693	next->mainstack = 0;
694	next->tmps_ix = -2;
695
696	/* stacklevel changed? if yes, grab the stack for us! */
697	if (flags & TRANSFER_SAVE_CCTXT)
698	{
699	if (!prev->stack)
700	allocate_stack (prev, 0);
701	else if (prev->cursp != stacklevel
702	&& prev->stack->usecnt > 1)
703	{
704	prev->gencnt = ++prev->stack->gencnt;
705	prev->stack->usecnt = 1;
706	}
707
708	/* has our stack been invalidated? */
709	if (next->stack && next->stack->gencnt != next->gencnt)
710	{
711	deallocate_stack (next);
712	allocate_stack (next, 1);
713	coro_create (&(next->stack->cctx),
714	continue_coro, (void *)next,
715	next->stack->sptr, labs (next->stack->ssize));
716	}
717
718	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
719	prev->cursp = stacklevel;
720	/* don't add any code here */
721	}
722	else
723	next->cursp = stacklevel;
724	}
725	else if (next->tmps_ix == -2)
726	croak ("tried to transfer to running coroutine");
727	else
728	{
729	LOCK;
730	SAVE (prev, -1); /* first get rid of the old state */
731	UNLOCK;
732
733	/* create the coroutine for the first time */
734	if (flags & TRANSFER_SAVE_CCTXT)
735	{
736	if (!prev->stack)
737	allocate_stack (prev, 0);
738
739	/* the new coroutine starts with start_env again */
740	PL_top_env = &PL_start_env;
741
742	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
743	{
744	setup_coro (next);
745	next->cursp = stacklevel;
746
747	prev->stack->refcnt++;
748	prev->stack->usecnt++;
749	next->stack = prev->stack;
750	next->gencnt = prev->gencnt;
751	}
752	else
753	{
754	assert (!next->stack);
755	allocate_stack (next, 1);
756	coro_create (&(next->stack->cctx),
757	setup_coro, (void *)next,
758	next->stack->sptr, labs (next->stack->ssize));
759	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
760	prev->cursp = stacklevel;
761	/* don't add any code here */
762	}
763	}
764	else
765	{
766	setup_coro (next);
767	next->cursp = stacklevel;
768	}
769	}
770	}
771
772	LOCK;
773	if (coro_mortal)	569	if (coro_mortal)
774	{	570	{
775	SvREFCNT_dec (coro_mortal);	571	SvREFCNT_dec (coro_mortal);
776	coro_mortal = 0;	572	coro_mortal = 0;
777	}	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
778	UNLOCK;	585	UNLOCK;
		586
		587	PL_top_env = &PL_start_env;
		588
		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));
		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	}
779	}	746	}
780		747
781	/* use this function pointer to call the above function */	748	/* use this function pointer to call the above function */
782	/* this is done to increase chances of the compiler not inlining the call */	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 */
783	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;	751	void (coro_state_transfer)(struct coro prev, struct coro *next, int flags) = transfer_impl;
784		752
785	#define SV_CORO(sv,func) \	753	struct transfer_args
786	do { \	754	{
787	if (SvROK (sv)) \	755	struct coro prev, next;
788	sv = SvRV (sv); \	756	int flags;
789	\	757	};
790	if (SvTYPE (sv) == SVt_PVHV && SvSTASH (sv) != coro_state_stash) \	758
791	{ \	759	#define TRANSFER(ta) coro_state_transfer ((ta).prev, (ta).next, (ta).flags)
792	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
793	\
794	if (!he) \
795	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
796	\
797	(sv) = SvRV (HeVAL(he)); \
798	} \
799	\
800	/* must also be changed inside Coro::Cont::yield */ \
801	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
802	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
803	\
804	} while(0)
805		760
806	static void	761	static void
807	coro_state_destroy (struct coro *coro)	762	coro_state_destroy (struct coro *coro)
808	{	763	{
809	if (coro->refcnt--)	764	if (coro->refcnt--)
…		…
811		766
812	if (coro->mainstack && coro->mainstack != main_mainstack)	767	if (coro->mainstack && coro->mainstack != main_mainstack)
813	{	768	{
814	struct coro temp;	769	struct coro temp;
815		770
816	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);	771	SAVE ((&temp), TRANSFER_SAVE_ALL);
817	LOAD (aTHX_ coro);	772	LOAD (coro);
818		773
819	destroy_stacks (aTHX);	774	destroy_stacks ();
820		775
821	LOAD ((&temp)); /* this will get rid of defsv etc.. */	776	LOAD ((&temp)); /* this will get rid of defsv etc.. */
822		777
823	coro->mainstack = 0;	778	coro->mainstack = 0;
824	}	779	}
825		780
826	deallocate_stack (coro);	781	stack_free (coro->stack);
827	SvREFCNT_dec (coro->args);	782	SvREFCNT_dec (coro->args);
828	Safefree (coro);	783	Safefree (coro);
829	}	784	}
830		785
831	static int	786	static int
832	coro_state_clear (SV sv, MAGIC mg)	787	coro_state_clear (pTHX_ SV sv, MAGIC mg)
833	{	788	{
834	struct coro coro = (struct coro )mg->mg_ptr;	789	struct coro coro = (struct coro )mg->mg_ptr;
835	mg->mg_ptr = 0;	790	mg->mg_ptr = 0;
836		791
837	coro_state_destroy (coro);	792	coro_state_destroy (coro);
838		793
839	return 0;	794	return 0;
840	}	795	}
841		796
842	static int	797	static int
843	coro_state_dup (MAGIC mg, CLONE_PARAMS params)	798	coro_state_dup (pTHX_ MAGIC mg, CLONE_PARAMS params)
844	{	799	{
845	struct coro coro = (struct coro )mg->mg_ptr;	800	struct coro coro = (struct coro )mg->mg_ptr;
846		801
847	++coro->refcnt;	802	++coro->refcnt;
848		803
…		…
852	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };	807	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };
853		808
854	static struct coro *	809	static struct coro *
855	SvSTATE (SV *coro)	810	SvSTATE (SV *coro)
856	{	811	{
857	MAGIC *mg = SvMAGIC (SvROK (coro) ? SvRV (coro) : coro);	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);
858	assert (mg->mg_type == PERL_MAGIC_ext);	827	assert (mg->mg_type == PERL_MAGIC_ext);
859	return (struct coro *)mg->mg_ptr;	828	return (struct coro *)mg->mg_ptr;
860	}	829	}
861		830
862	static void	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
863	api_transfer (pTHX_ SV prev, SV next, int flags)	840	api_transfer (SV prev, SV next, int flags)
864	{	841	{
865	SV_CORO (prev, "Coro::transfer");	842	dTHX;
866	SV_CORO (next, "Coro::transfer");	843	struct transfer_args ta;
867		844
868	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	845	prepare_transfer (&ta, prev, next, flags);
		846	TRANSFER (ta);
869	}	847	}
870		848
871	/ Coro ******************************************************************/	849	/ Coro ******************************************************************/
872		850
873	#define PRIO_MAX 3	851	#define PRIO_MAX 3
…		…
881	static GV coro_current, coro_idle;	859	static GV coro_current, coro_idle;
882	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	860	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
883	static int coro_nready;	861	static int coro_nready;
884		862
885	static void	863	static void
886	coro_enq (pTHX_ SV *sv)	864	coro_enq (SV *sv)
887	{	865	{
888	int prio;	866	int prio;
889		867
890	if (SvTYPE (sv) != SVt_PVHV)	868	if (SvTYPE (sv) != SVt_PVHV)
891	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");
892		870
893	{
894	SV *coro = sv;
895	SV_CORO (coro, "omg");
896	prio = SvSTATE (coro)->prio;	871	prio = SvSTATE (sv)->prio;
897	}
898		872
899	av_push (coro_ready [prio - PRIO_MIN], sv);	873	av_push (coro_ready [prio - PRIO_MIN], sv);
900	coro_nready++;	874	coro_nready++;
901	}	875	}
902		876
903	static SV *	877	static SV *
904	coro_deq (pTHX_ int min_prio)	878	coro_deq (int min_prio)
905	{	879	{
906	int prio = PRIO_MAX - PRIO_MIN;	880	int prio = PRIO_MAX - PRIO_MIN;
907		881
908	min_prio -= PRIO_MIN;	882	min_prio -= PRIO_MIN;
909	if (min_prio < 0)	883	if (min_prio < 0)
…		…
926		900
927	if (SvROK (coro))	901	if (SvROK (coro))
928	coro = SvRV (coro);	902	coro = SvRV (coro);
929		903
930	LOCK;	904	LOCK;
931	coro_enq (aTHX_ SvREFCNT_inc (coro));	905	coro_enq (SvREFCNT_inc (coro));
932	UNLOCK;	906	UNLOCK;
933	}	907	}
934		908
935	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
936	api_schedule (void)	969	api_schedule (void)
937	{	970	{
938	dTHX;	971	dTHX;
		972	struct transfer_args ta;
939		973
940	SV prev, next;	974	prepare_schedule (&ta);
941		975	TRANSFER (ta);
942	LOCK;
943
944	prev = SvRV (GvSV (coro_current));
945	next = coro_deq (aTHX_ PRIO_MIN);
946
947	if (!next)
948	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
949
950	/* free this only after the transfer */
951	coro_mortal = prev;
952	SV_CORO (prev, "Coro::schedule");
953
954	SvRV (GvSV (coro_current)) = next;
955
956	SV_CORO (next, "Coro::schedule");
957
958	UNLOCK;
959
960	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
961	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
962	}	976	}
963		977
964	static void	978	static void
965	api_cede (void)	979	api_cede (void)
966	{	980	{
967	dTHX;	981	dTHX;
		982	struct transfer_args ta;
968		983
969	LOCK;	984	prepare_cede (&ta);
970	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));	985	TRANSFER (ta);
971	UNLOCK;
972
973	api_schedule ();
974	}	986	}
975		987
976	MODULE = Coro::State PACKAGE = Coro::State	988	MODULE = Coro::State PACKAGE = Coro::State
977		989
978	PROTOTYPES: DISABLE	990	PROTOTYPES: DISABLE
979		991
980	BOOT:	992	BOOT:
981	{ /* {} necessary for stoopid perl-5.6.x */	993	{
982	#ifdef USE_ITHREADS	994	#ifdef USE_ITHREADS
983	MUTEX_INIT (&coro_mutex);	995	MUTEX_INIT (&coro_mutex);
984	#endif	996	#endif
985	BOOT_PAGESIZE;	997	BOOT_PAGESIZE;
986		998
987	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
988	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
989	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	999	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
990		1000
991	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1001	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
992	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1002	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
993	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1003	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
994	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
995		1004
996	main_mainstack = PL_mainstack;	1005	main_mainstack = PL_mainstack;
997		1006
998	coroapi.ver = CORO_API_VERSION;	1007	coroapi.ver = CORO_API_VERSION;
999	coroapi.transfer = api_transfer;	1008	coroapi.transfer = api_transfer;
…		…
1010	int i;	1019	int i;
1011		1020
1012	Newz (0, coro, 1, struct coro);	1021	Newz (0, coro, 1, struct coro);
1013	coro->args = newAV ();	1022	coro->args = newAV ();
1014		1023
1015	for (i = 1; i < items; i++)
1016	av_push (coro->args, newSVsv (ST (i)));
1017
1018	/coro->mainstack = 0; //actual work is done inside transfer /
1019	/coro->stack = 0;/
1020
1021	hv = newHV ();	1024	hv = newHV ();
1022	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1025	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1023	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	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
		1031	/coro->mainstack = 0; //actual work is done inside transfer /
		1032	/coro->stack = 0;/
1024	}	1033	}
1025	OUTPUT:	1034	OUTPUT:
1026	RETVAL	1035	RETVAL
1027		1036
1028	void	1037	void
1029	transfer(prev, next, flags)	1038	_set_stacklevel (...)
1030	SV *prev	1039	ALIAS:
1031	SV *next	1040	Coro::State::transfer = 1
1032	int flags	1041	Coro::schedule = 2
		1042	Coro::cede = 3
		1043	Coro::Cont::yield = 4
1033	CODE:	1044	CODE:
1034	PUTBACK;
1035	SV_CORO (next, "Coro::transfer");
1036	SV_CORO (prev, "Coro::transfer");
1037	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
1038	SPAGAIN;
1039
1040	int
1041	prio (Coro::State coro, int newprio = 0)
1042	ALIAS:
1043	nice = 1
1044	CODE:
1045	{	1045	{
1046	RETVAL = coro->prio;	1046	struct transfer_args ta;
1047		1047
1048	if (items > 1)	1048	switch (ix)
1049	{	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:
1050	if (ix)	1057	if (items != 3)
1051	newprio += coro->prio;	1058	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);
1052		1059
1053	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1060	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));
1054	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1061	break;
1055		1062
1056	coro->prio = newprio;	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
1057	}	1097	}
		1098
		1099	TRANSFER (ta);
1058	}	1100	}
1059		1101
1060	void	1102	void
1061	_clone_state_from (SV dst, SV src)	1103	_clone_state_from (SV dst, SV src)
1062	CODE:	1104	CODE:
…		…
1066	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);	1108	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1067		1109
1068	++coro_src->refcnt;	1110	++coro_src->refcnt;
1069	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;	1111	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1070	}	1112	}
		1113
		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);
1071		1119
1072	void	1120	void
1073	_exit (code)	1121	_exit (code)
1074	int code	1122	int code
1075	PROTOTYPE: $	1123	PROTOTYPE: $
1076	CODE:	1124	CODE:
1077	_exit (code);	1125	_exit (code);
1078		1126
1079	MODULE = Coro::State PACKAGE = Coro::Cont
1080
1081	void
1082	yield (...)
1083	PROTOTYPE: @
1084	CODE:
1085	SV *yieldstack;
1086	SV *sv;
1087	AV *defav = GvAV (PL_defgv);
1088	struct coro prev, next;
1089
1090	yieldstack = *hv_fetch (
1091	(HV *)SvRV (GvSV (coro_current)),
1092	"yieldstack", sizeof ("yieldstack") - 1,
1093	0
1094	);
1095
1096	/* set up @_ -- ugly */
1097	av_clear (defav);
1098	av_fill (defav, items - 1);
1099	while (items--)
1100	av_store (defav, items, SvREFCNT_inc (ST(items)));
1101
1102	sv = av_pop ((AV *)SvRV (yieldstack));
1103	prev = SvSTATE ((SV)SvRV (av_fetch ((AV *)SvRV (sv), 0, 0)));
1104	next = SvSTATE ((SV)SvRV (av_fetch ((AV *)SvRV (sv), 1, 0)));
1105	SvREFCNT_dec (sv);
1106
1107	coro_state_transfer (aTHX_ prev, next, 0);
1108
1109	MODULE = Coro::State PACKAGE = Coro	1127	MODULE = Coro::State PACKAGE = Coro
1110		1128
1111	BOOT:	1129	BOOT:
1112	{	1130	{
1113	int i;	1131	int i;
		1132
1114	HV *stash = gv_stashpv ("Coro", TRUE);	1133	coro_stash = gv_stashpv ("Coro", TRUE);
1115		1134
1116	newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));	1135	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1117	newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1136	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1118	newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1137	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1119	newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));	1138	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1120	newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1139	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1121	newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));	1140	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1122		1141
1123	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1142	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
1124	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1143	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
1125		1144
1126	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1145	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
…		…
1139	sv_setiv (sv, (IV)&coroapi);	1158	sv_setiv (sv, (IV)&coroapi);
1140	SvREADONLY_on (sv);	1159	SvREADONLY_on (sv);
1141	}	1160	}
1142	}	1161	}
1143		1162
1144	#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	}
1145		1182
1146	void	1183	void
1147	ready (self)	1184	ready (SV *self)
1148	SV * self
1149	PROTOTYPE: $	1185	PROTOTYPE: $
1150	CODE:	1186	CODE:
1151	api_ready (self);	1187	api_ready (self);
1152
1153	#endif
1154		1188
1155	int	1189	int
1156	nready (...)	1190	nready (...)
1157	PROTOTYPE:	1191	PROTOTYPE:
1158	CODE:	1192	CODE:
1159	RETVAL = coro_nready;	1193	RETVAL = coro_nready;
1160	OUTPUT:	1194	OUTPUT:
1161	RETVAL	1195	RETVAL
1162		1196
1163	void	1197	MODULE = Coro::State PACKAGE = Coro::AIO
1164	schedule (...)
1165	PROTOTYPE:
1166	CODE:
1167	api_schedule ();
1168		1198
1169	void
1170	cede (...)
1171	PROTOTYPE:
1172	CODE:
1173	api_cede ();
1174
1175	# and these are hacks
1176	SV *	1199	SV *
1177	_aio_get_state ()	1200	_get_state ()
1178	CODE:	1201	CODE:
1179	{	1202	{
1180	struct {	1203	struct {
1181	int errorno;	1204	int errorno;
1182	int laststype;	1205	int laststype;
…		…
1193	}	1216	}
1194	OUTPUT:	1217	OUTPUT:
1195	RETVAL	1218	RETVAL
1196		1219
1197	void	1220	void
1198	_aio_set_state (char *data_)	1221	_set_state (char *data_)
1199	PROTOTYPE: $	1222	PROTOTYPE: $
1200	CODE:	1223	CODE:
1201	{	1224	{
1202	struct {	1225	struct {
1203	int errorno;	1226	int errorno;

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Comparing Coro/Coro/State.xs (file contents): Revision 1.87 by root, Fri Nov 24 13:40:36 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 1.87 by root, Fri Nov 24 13:40:36 2006 UTC vs.
Revision 1.98 by root, Sun Nov 26 21:25:53 2006 UTC