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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.88 by root, Fri Nov 24 15:34:33 2006 UTC vs.
Revision 1.102 by root, Mon Nov 27 01:28:03 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"
8		6
9	#include "patchlevel.h"	7	#include "patchlevel.h"
10		8
11	#if PERL_VERSION < 6	9	#define PERL_VERSION_ATLEAST(a,b,c) \
		10	(PERL_REVISION > (a) \
		11	\|\| (PERL_REVISION == (a) \
		12	&& (PERL_VERSION > (b) \
		13	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
		14
		15	#if !PERL_VERSION_ATLEAST (5,6,0)
12	# ifndef PL_ppaddr	16	# ifndef PL_ppaddr
13	# define PL_ppaddr ppaddr	17	# define PL_ppaddr ppaddr
14	# endif	18	# endif
15	# ifndef call_sv	19	# ifndef call_sv
16	# define call_sv perl_call_sv	20	# define call_sv perl_call_sv
27	# ifndef IS_PADCONST	31	# ifndef IS_PADCONST
28	# define IS_PADCONST(v) 0	32	# define IS_PADCONST(v) 0
29	# endif	33	# endif
30	#endif	34	#endif
31		35
		36	#include <stdio.h>
32	#include <errno.h>	37	#include <errno.h>
33		38
34	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	39	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
35	# undef STACKGUARD	40	# undef STACKGUARD
36	#endif	41	#endif
…		…
57	# else	62	# else
58	# define BOOT_PAGESIZE	63	# define BOOT_PAGESIZE
59	# endif	64	# endif
60	#endif	65	#endif
61		66
62	#define SUB_INIT "Coro::State::initialize"
63
64	/* The next macro should declare a variable stacklevel that contains and approximation	67	/* The next macro should declare a variable stacklevel that contains and approximation
65	* to the current C stack pointer. Its property is that it changes with each call	68	* to the current C stack pointer. Its property is that it changes with each call
66	* and should be unique. */	69	* and should be unique. */
		70	#define dSTACKLEVEL int stacklevel
67	#define dSTACKLEVEL void *stacklevel = &stacklevel	71	#define STACKLEVEL ((void *)&stacklevel)
68		72
69	#define IN_DESTRUCT (PL_main_cv == Nullcv)	73	#define IN_DESTRUCT (PL_main_cv == Nullcv)
70		74
71	#define labs(l) ((l) >= 0 ? (l) : -(l))	75	#if __GNUC__ >= 3
		76	# define attribute(x) __attribute__(x)
		77	#else
		78	# define attribute(x)
		79	#endif
		80
		81	#define NOINLINE attribute ((noinline))
72		82
73	#include "CoroAPI.h"	83	#include "CoroAPI.h"
		84
		85	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
74		86
75	#ifdef USE_ITHREADS	87	#ifdef USE_ITHREADS
76	static perl_mutex coro_mutex;	88	static perl_mutex coro_mutex;
77	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	89	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
78	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	90	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
…		…
84	static struct CoroAPI coroapi;	96	static struct CoroAPI coroapi;
85	static AV main_mainstack; / used to differentiate between $main and others */	97	static AV main_mainstack; / used to differentiate between $main and others */
86	static HV coro_state_stash, coro_stash;	98	static HV coro_state_stash, coro_stash;
87	static SV coro_mortal; / will be freed after next transfer */	99	static SV coro_mortal; / will be freed after next transfer */
88		100
89	/* this is actually not only the c stack but also c registers etc... */	101	/* this is a structure representing a c-level coroutine */
90	typedef struct {	102	typedef struct coro_stack {
91	int refcnt; /* pointer reference counter */	103	struct coro_stack *next;
92	int usecnt; /* shared by how many coroutines */
93	int gencnt; /* generation counter */
94		104
95	coro_context cctx;	105	/* the stack */
96
97	void *sptr;	106	void *sptr;
98	long ssize; /* positive == mmap, otherwise malloc */	107	long ssize; /* positive == mmap, otherwise malloc */
		108
		109	/* cpu state */
		110	void idle_sp; / sp of top-level transfer/schedule/cede call */
		111	JMPENV *top_env;
		112	coro_context cctx;
99	} coro_stack;	113	} coro_stack;
100		114
		115	/* this is a structure representing a perl-level coroutine */
101	struct coro {	116	struct coro {
102	/* the optional C context */	117	/* the c coroutine allocated to this perl coroutine, if any */
103	coro_stack *stack;	118	coro_stack *stack;
104	void *cursp;	119
		120	/* data associated with this coroutine (initial args) */
		121	AV *args;
105	int gencnt;	122	int refcnt;
106		123
107	/* optionally saved, might be zero */	124	/* optionally saved, might be zero */
108	AV *defav;	125	AV *defav;
109	SV *defsv;	126	SV *defsv;
110	SV *errsv;	127	SV *errsv;
…		…
140	OP **retstack;	157	OP **retstack;
141	I32 retstack_ix;	158	I32 retstack_ix;
142	I32 retstack_max;	159	I32 retstack_max;
143	PMOP *curpm;	160	PMOP *curpm;
144	COP *curcop;	161	COP *curcop;
145	JMPENV *top_env;
146		162
147	/* coro process data */	163	/* coro process data */
148	int prio;	164	int prio;
149
150	/* data associated with this coroutine (initial args) */
151	AV *args;
152	int refcnt;
153	};	165	};
154		166
155	typedef struct coro *Coro__State;	167	typedef struct coro *Coro__State;
156	typedef struct coro *Coro__State_or_hashref;	168	typedef struct coro *Coro__State_or_hashref;
157		169
158	static AV *	170	static AV *
159	coro_clone_padlist (pTHX_ CV *cv)	171	coro_clone_padlist (CV *cv)
160	{	172	{
161	AV *padlist = CvPADLIST (cv);	173	AV *padlist = CvPADLIST (cv);
162	AV newpadlist, newpad;	174	AV newpadlist, newpad;
163		175
164	newpadlist = newAV ();	176	newpadlist = newAV ();
165	AvREAL_off (newpadlist);	177	AvREAL_off (newpadlist);
166	#if PERL_VERSION < 9	178	#if PERL_VERSION_ATLEAST (5,9,0)
		179	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
		180	#else
167	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	181	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
168	#else
169	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
170	#endif	182	#endif
171	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	183	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
172	--AvFILLp (padlist);	184	--AvFILLp (padlist);
173		185
174	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	186	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
…		…
176		188
177	return newpadlist;	189	return newpadlist;
178	}	190	}
179		191
180	static void	192	static void
181	free_padlist (pTHX_ AV *padlist)	193	free_padlist (AV *padlist)
182	{	194	{
183	/* may be during global destruction */	195	/* may be during global destruction */
184	if (SvREFCNT (padlist))	196	if (SvREFCNT (padlist))
185	{	197	{
186	I32 i = AvFILLp (padlist);	198	I32 i = AvFILLp (padlist);
…		…
207	AV *padlist;	219	AV *padlist;
208	AV av = (AV )mg->mg_obj;	220	AV av = (AV )mg->mg_obj;
209		221
210	/* casting is fun. */	222	/* casting is fun. */
211	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	223	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
212	free_padlist (aTHX_ padlist);	224	free_padlist (padlist);
213		225
214	SvREFCNT_dec (av);	226	SvREFCNT_dec (av);
215		227
216	return 0;	228	return 0;
217	}	229	}
…		…
220		232
221	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	233	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
222		234
223	/* the next two functions merely cache the padlists */	235	/* the next two functions merely cache the padlists */
224	static void	236	static void
225	get_padlist (pTHX_ CV *cv)	237	get_padlist (CV *cv)
226	{	238	{
227	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	239	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
228		240
229	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	241	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
230	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	242	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
231	else	243	else
232	{	244	{
233	#if 0	245	#if 0
234	/* this should work - but it doesn't :( */	246	/* this is probably cleaner, but also slower? */
235	CV *cp = Perl_cv_clone (aTHX_ cv);	247	CV *cp = Perl_cv_clone (cv);
236	CvPADLIST (cv) = CvPADLIST (cp);	248	CvPADLIST (cv) = CvPADLIST (cp);
237	CvPADLIST (cp) = 0;	249	CvPADLIST (cp) = 0;
238	SvREFCNT_dec (cp);	250	SvREFCNT_dec (cp);
239	#else	251	#else
240	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	252	CvPADLIST (cv) = coro_clone_padlist (cv);
241	#endif	253	#endif
242	}	254	}
243	}	255	}
244		256
245	static void	257	static void
246	put_padlist (pTHX_ CV *cv)	258	put_padlist (CV *cv)
247	{	259	{
248	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	260	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
249		261
250	if (!mg)	262	if (!mg)
251	{	263	{
…		…
259	}	271	}
260		272
261	#define SB do {	273	#define SB do {
262	#define SE } while (0)	274	#define SE } while (0)
263		275
264	#define LOAD(state) load_state(aTHX_ (state));	276	#define LOAD(state) load_state((state));
265	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	277	#define SAVE(state,flags) save_state((state),(flags));
266		278
267	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	279	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
268		280
269	static void	281	static void
270	load_state(pTHX_ Coro__State c)	282	load_state(Coro__State c)
271	{	283	{
272	PL_dowarn = c->dowarn;	284	PL_dowarn = c->dowarn;
273	PL_in_eval = c->in_eval;	285	PL_in_eval = c->in_eval;
274		286
275	PL_curstackinfo = c->curstackinfo;	287	PL_curstackinfo = c->curstackinfo;
…		…
293	PL_scopestack_ix = c->scopestack_ix;	305	PL_scopestack_ix = c->scopestack_ix;
294	PL_scopestack_max = c->scopestack_max;	306	PL_scopestack_max = c->scopestack_max;
295	PL_savestack = c->savestack;	307	PL_savestack = c->savestack;
296	PL_savestack_ix = c->savestack_ix;	308	PL_savestack_ix = c->savestack_ix;
297	PL_savestack_max = c->savestack_max;	309	PL_savestack_max = c->savestack_max;
298	#if PERL_VERSION < 9	310	#if !PERL_VERSION_ATLEAST (5,9,0)
299	PL_retstack = c->retstack;	311	PL_retstack = c->retstack;
300	PL_retstack_ix = c->retstack_ix;	312	PL_retstack_ix = c->retstack_ix;
301	PL_retstack_max = c->retstack_max;	313	PL_retstack_max = c->retstack_max;
302	#endif	314	#endif
303	PL_curpm = c->curpm;	315	PL_curpm = c->curpm;
304	PL_curcop = c->curcop;	316	PL_curcop = c->curcop;
305	PL_top_env = c->top_env;
306		317
307	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	318	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
308	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	319	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
309	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	320	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
310		321
…		…
317	{	328	{
318	AV padlist = (AV )POPs;	329	AV padlist = (AV )POPs;
319		330
320	if (padlist)	331	if (padlist)
321	{	332	{
322	put_padlist (aTHX_ cv); /* mark this padlist as available */	333	put_padlist (cv); /* mark this padlist as available */
323	CvPADLIST(cv) = padlist;	334	CvPADLIST(cv) = padlist;
324	}	335	}
325		336
326	++CvDEPTH(cv);	337	++CvDEPTH(cv);
327	}	338	}
…		…
329	PUTBACK;	340	PUTBACK;
330	}	341	}
331	}	342	}
332		343
333	static void	344	static void
334	save_state(pTHX_ Coro__State c, int flags)	345	save_state(Coro__State c, int flags)
335	{	346	{
336	{	347	{
337	dSP;	348	dSP;
338	I32 cxix = cxstack_ix;	349	I32 cxix = cxstack_ix;
339	PERL_CONTEXT *ccstk = cxstack;	350	PERL_CONTEXT *ccstk = cxstack;
…		…
367	}	378	}
368		379
369	PUSHs ((SV *)CvPADLIST(cv));	380	PUSHs ((SV *)CvPADLIST(cv));
370	PUSHs ((SV *)cv);	381	PUSHs ((SV *)cv);
371		382
372	get_padlist (aTHX_ cv);	383	get_padlist (cv);
373	}	384	}
374	}	385	}
375	#ifdef CXt_FORMAT	386	#ifdef CXt_FORMAT
376	else if (CxTYPE(cx) == CXt_FORMAT)	387	else if (CxTYPE(cx) == CXt_FORMAT)
377	{	388	{
…		…
421	c->scopestack_ix = PL_scopestack_ix;	432	c->scopestack_ix = PL_scopestack_ix;
422	c->scopestack_max = PL_scopestack_max;	433	c->scopestack_max = PL_scopestack_max;
423	c->savestack = PL_savestack;	434	c->savestack = PL_savestack;
424	c->savestack_ix = PL_savestack_ix;	435	c->savestack_ix = PL_savestack_ix;
425	c->savestack_max = PL_savestack_max;	436	c->savestack_max = PL_savestack_max;
426	#if PERL_VERSION < 9	437	#if !PERL_VERSION_ATLEAST (5,9,0)
427	c->retstack = PL_retstack;	438	c->retstack = PL_retstack;
428	c->retstack_ix = PL_retstack_ix;	439	c->retstack_ix = PL_retstack_ix;
429	c->retstack_max = PL_retstack_max;	440	c->retstack_max = PL_retstack_max;
430	#endif	441	#endif
431	c->curpm = PL_curpm;	442	c->curpm = PL_curpm;
432	c->curcop = PL_curcop;	443	c->curcop = PL_curcop;
433	c->top_env = PL_top_env;
434	}	444	}
435		445
436	/*	446	/*
437	* allocate various perl stacks. This is an exact copy	447	* allocate various perl stacks. This is an exact copy
438	* of perl.c:init_stacks, except that it uses less memory	448	* of perl.c:init_stacks, except that it uses less memory
439	* on the (sometimes correct) assumption that coroutines do	449	* on the (sometimes correct) assumption that coroutines do
440	* not usually need a lot of stackspace.	450	* not usually need a lot of stackspace.
441	*/	451	*/
442	static void	452	static void
443	coro_init_stacks (pTHX)	453	coro_init_stacks ()
444	{	454	{
445	LOCK;
446
447	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	455	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
448	PL_curstackinfo->si_type = PERLSI_MAIN;	456	PL_curstackinfo->si_type = PERLSI_MAIN;
449	PL_curstack = PL_curstackinfo->si_stack;	457	PL_curstack = PL_curstackinfo->si_stack;
450	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	458	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
451		459
…		…
472		480
473	New(54,PL_savestack,96,ANY);	481	New(54,PL_savestack,96,ANY);
474	PL_savestack_ix = 0;	482	PL_savestack_ix = 0;
475	PL_savestack_max = 96;	483	PL_savestack_max = 96;
476		484
477	#if PERL_VERSION < 9	485	#if !PERL_VERSION_ATLEAST (5,9,0)
478	New(54,PL_retstack,8,OP*);	486	New(54,PL_retstack,8,OP*);
479	PL_retstack_ix = 0;	487	PL_retstack_ix = 0;
480	PL_retstack_max = 8;	488	PL_retstack_max = 8;
481	#endif	489	#endif
482
483	UNLOCK;
484	}	490	}
485		491
486	/*	492	/*
487	* destroy the stacks, the callchain etc...	493	* destroy the stacks, the callchain etc...
488	*/	494	*/
489	static void	495	static void
490	destroy_stacks(pTHX)	496	coro_destroy_stacks()
491	{	497	{
492	if (!IN_DESTRUCT)	498	if (!IN_DESTRUCT)
493	{	499	{
494	/* is this ugly, I ask? */	500	/* is this ugly, I ask? */
495	LEAVE_SCOPE (0);	501	LEAVE_SCOPE (0);
…		…
526		532
527	Safefree (PL_tmps_stack);	533	Safefree (PL_tmps_stack);
528	Safefree (PL_markstack);	534	Safefree (PL_markstack);
529	Safefree (PL_scopestack);	535	Safefree (PL_scopestack);
530	Safefree (PL_savestack);	536	Safefree (PL_savestack);
531	#if PERL_VERSION < 9	537	#if !PERL_VERSION_ATLEAST (5,9,0)
532	Safefree (PL_retstack);	538	Safefree (PL_retstack);
533	#endif	539	#endif
534	}	540	}
535		541
536	static void	542	static void
537	allocate_stack (Coro__State ctx, int alloc)	543	setup_coro (struct coro *coro)
538	{
539	coro_stack *stack;
540
541	New (0, stack, 1, coro_stack);
542
543	stack->refcnt = 1;
544	stack->usecnt = 1;
545	stack->gencnt = ctx->gencnt = 0;
546
547	if (alloc)
548	{
549	#if HAVE_MMAP
550	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */
551	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
552	if (stack->sptr != (void *)-1)
553	{
554	# if STACKGUARD
555	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
556	# endif
557	}
558	else
559	#endif
560	{
561	stack->ssize = - (STACKSIZE * (long)sizeof (long));
562	New (0, stack->sptr, STACKSIZE, long);
563	}
564	}
565	else
566	stack->sptr = 0;
567
568	ctx->stack = stack;
569	}
570
571	static void
572	deallocate_stack (Coro__State ctx)
573	{
574	coro_stack *stack = ctx->stack;
575
576	ctx->stack = 0;
577
578	if (stack)
579	{
580	if (!--stack->refcnt)
581	{
582	#ifdef HAVE_MMAP
583	if (stack->ssize > 0 && stack->sptr)
584	munmap (stack->sptr, stack->ssize);
585	else
586	#endif
587	Safefree (stack->sptr);
588
589	Safefree (stack);
590	}
591	else if (ctx->gencnt == stack->gencnt)
592	--stack->usecnt;
593	}
594	}
595
596	static void
597	setup_coro (void *arg)
598	{	544	{
599	/*	545	/*
600	* emulate part of the perl startup here.	546	* emulate part of the perl startup here.
601	*/	547	*/
602	dTHX;
603	dSP;
604	Coro__State ctx = (Coro__State)arg;
605	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
606		548
607	coro_init_stacks (aTHX);	549	coro_init_stacks ();
		550
		551	{
		552	dSP;
		553	LOGOP myop;
		554
608	/PL_curcop = 0;/	555	/PL_curcop = 0;/
609	/PL_in_eval = PL_in_eval;/ /* inherit */	556	PL_in_eval = 0;
610	SvREFCNT_dec (GvAV (PL_defgv));	557	SvREFCNT_dec (GvAV (PL_defgv));
611	GvAV (PL_defgv) = ctx->args; ctx->args = 0;	558	GvAV (PL_defgv) = coro->args; coro->args = 0;
612		559
613	SPAGAIN;	560	SPAGAIN;
614		561
615	if (ctx->stack)
616	{
617	ctx->cursp = 0;
618
619	PUSHMARK(SP);
620	PUTBACK;
621	(void) call_sv (sub_init, G_VOID\|G_NOARGS\|G_EVAL);
622
623	if (SvTRUE (ERRSV))
624	croak (NULL);
625	else
626	croak ("FATAL: CCTXT coroutine returned!");
627	}
628	else
629	{
630	UNOP myop;
631
632	Zero(&myop, 1, UNOP);	562	Zero (&myop, 1, LOGOP);
633	myop.op_next = Nullop;	563	myop.op_next = Nullop;
634	myop.op_flags = OPf_WANT_VOID;	564	myop.op_flags = OPf_WANT_VOID;
635		565
636	PL_op = (OP *)&myop;	566	PL_op = (OP *)&myop;
637		567
638	PUSHMARK(SP);	568	PUSHMARK (SP);
639	XPUSHs (sub_init);	569	PUSHMARK (SP);
640	/*	570	XPUSHs ((SV *)get_cv ("Coro::State::coro_init", FALSE));
641	* the next line is slightly wrong, as PL_op->op_next
642	* is actually being executed so we skip the first op.
643	* that doesn't matter, though, since it is only
644	* pp_nextstate and we never return...
645	* ah yes, and I don't care anyways ;)
646	*/
647	PUTBACK;	571	PUTBACK;
648	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	572	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
649	SPAGAIN;	573	SPAGAIN;
650		574
651	ENTER; /* necessary e.g. for dounwind */	575	ENTER; /* necessary e.g. for dounwind */
652	}	576	}
653	}	577	}
654		578
655	static void	579	static void
656	continue_coro (void *arg)	580	free_coro_mortal ()
657	{	581	{
658	/*
659	* this is a _very_ stripped down perl interpreter ;)
660	*/
661	dTHX;
662	Coro__State ctx = (Coro__State)arg;
663
664	PL_top_env = &PL_start_env;
665
666	ctx->cursp = 0;
667	PL_op = PL_op->op_next;
668	CALLRUNOPS(aTHX);
669
670	abort ();
671	}
672
673	/* never call directly, always through the coro_state_transfer global variable */
674	static void
675	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)
676	{
677	dSTACKLEVEL;
678
679	if (prev != next)
680	{
681	/* has this coro been created yet? */
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	/* create the coroutine for the first time */
731	if (flags & TRANSFER_SAVE_CCTXT)
732	{
733	if (!prev->stack)
734	allocate_stack (prev, 0);
735
736	/* the new coroutine starts with start_env again */
737	PL_top_env = &PL_start_env;
738
739	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
740	{
741	setup_coro (next);
742	next->cursp = stacklevel;
743
744	prev->stack->refcnt++;
745	prev->stack->usecnt++;
746	next->stack = prev->stack;
747	next->gencnt = prev->gencnt;
748	}
749	else
750	{
751	assert (!next->stack);
752	allocate_stack (next, 1);
753	coro_create (&(next->stack->cctx),
754	setup_coro, (void *)next,
755	next->stack->sptr, labs (next->stack->ssize));
756	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
757	prev->cursp = stacklevel;
758	/* don't add any code here */
759	}
760	}
761	else
762	{
763	setup_coro (next);
764	next->cursp = stacklevel;
765	}
766	}
767	}
768
769	LOCK;
770	if (coro_mortal)	582	if (coro_mortal)
771	{	583	{
772	SvREFCNT_dec (coro_mortal);	584	SvREFCNT_dec (coro_mortal);
773	coro_mortal = 0;	585	coro_mortal = 0;
774	}	586	}
		587	}
		588
		589	static void NOINLINE
		590	prepare_cctx (coro_stack *cctx)
		591	{
		592	dSP;
		593	LOGOP myop;
		594
		595	Zero (&myop, 1, LOGOP);
		596	myop.op_next = PL_op;
		597	myop.op_flags = OPf_WANT_VOID;
		598
		599	sv_setiv (get_sv ("Coro::State::cctx_stack", FALSE), PTR2IV (cctx));
		600
		601	PUSHMARK (SP);
		602	XPUSHs ((SV *)get_cv ("Coro::State::cctx_init", FALSE));
		603	PUTBACK;
		604	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);
		605	SPAGAIN;
		606	}
		607
		608	static void
		609	coro_run (void *arg)
		610	{
		611	/* coro_run is the alternative epilogue of transfer() */
775	UNLOCK;	612	UNLOCK;
776	}
777		613
778	/* use this function pointer to call the above function */	614	/*
779	/* this is done to increase chances of the compiler not inlining the call */	615	* this is a _very_ stripped down perl interpreter ;)
780	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;	616	*/
		617	PL_top_env = &PL_start_env;
		618	/* inject call to cctx_init */
		619	prepare_cctx ((coro_stack *)arg);
		620
		621	/* somebody will hit me for both perl_run and PL_restartop */
		622	perl_run (PL_curinterp);
		623
		624	fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr);
		625	abort ();
		626	}
		627
		628	static coro_stack *
		629	stack_new ()
		630	{
		631	coro_stack *stack;
		632
		633	New (0, stack, 1, coro_stack);
		634
		635	#if HAVE_MMAP
		636
		637	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
		638	/* mmap suppsedly does allocate-on-write for us */
		639	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
		640
		641	if (stack->sptr == (void *)-1)
		642	{
		643	perror ("FATAL: unable to mmap stack for coroutine");
		644	_exit (EXIT_FAILURE);
		645	}
		646
		647	# if STACKGUARD
		648	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		649	# endif
		650
		651	#else
		652
		653	stack->ssize = STACKSIZE * (long)sizeof (long);
		654	New (0, stack->sptr, STACKSIZE, long);
		655
		656	if (!stack->sptr)
		657	{
		658	perror (stderr, "FATAL: unable to malloc stack for coroutine");
		659	_exit (EXIT_FAILURE);
		660	}
		661
		662	#endif
		663
		664	coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize);
		665
		666	return stack;
		667	}
		668
		669	static void
		670	stack_free (coro_stack *stack)
		671	{
		672	if (!stack)
		673	return;
		674
		675	#if HAVE_MMAP
		676	munmap (stack->sptr, stack->ssize);
		677	#else
		678	Safefree (stack->sptr);
		679	#endif
		680
		681	Safefree (stack);
		682	}
		683
		684	static coro_stack *stack_first;
		685	static int cctx_count, cctx_idle;
		686
		687	static coro_stack *
		688	stack_get ()
		689	{
		690	coro_stack *stack;
		691
		692	if (stack_first)
		693	{
		694	--cctx_idle;
		695	stack = stack_first;
		696	stack_first = stack->next;
		697	}
		698	else
		699	{
		700	++cctx_count;
		701	stack = stack_new ();
		702	PL_op = PL_op->op_next;
		703	}
		704
		705	return stack;
		706	}
		707
		708	static void
		709	stack_put (coro_stack *stack)
		710	{
		711	++cctx_idle;
		712	stack->next = stack_first;
		713	stack_first = stack;
		714	}
		715
		716	/* never call directly, always through the coro_state_transfer global variable */
		717	static void NOINLINE
		718	transfer (struct coro prev, struct coro next, int flags)
		719	{
		720	dSTACKLEVEL;
		721
		722	/* sometimes transfer is only called to set idle_sp */
		723	if (flags == TRANSFER_SET_STACKLEVEL)
		724	((coro_stack *)prev)->idle_sp = STACKLEVEL;
		725	else if (prev != next)
		726	{
		727	coro_stack *prev__stack;
		728
		729	LOCK;
		730
		731	if (next->mainstack)
		732	{
		733	/* coroutine already started */
		734	SAVE (prev, flags);
		735	LOAD (next);
		736	}
		737	else
		738	{
		739	/* need to start coroutine */
		740	/* first get rid of the old state */
		741	SAVE (prev, -1);
		742	/* setup coroutine call */
		743	setup_coro (next);
		744	/* need a stack */
		745	next->stack = 0;
		746	}
		747
		748	if (!prev->stack)
		749	/* create a new empty context */
		750	Newz (0, prev->stack, 1, coro_stack);
		751
		752	prev__stack = prev->stack;
		753
		754	/* possibly "free" the stack */
		755	if (prev__stack->idle_sp == STACKLEVEL)
		756	{
		757	stack_put (prev__stack);
		758	prev->stack = 0;
		759	}
		760
		761	if (!next->stack)
		762	next->stack = stack_get ();
		763
		764	if (prev__stack != next->stack)
		765	{
		766	prev__stack->top_env = PL_top_env;
		767	PL_top_env = next->stack->top_env;
		768	coro_transfer (&prev__stack->cctx, &next->stack->cctx);
		769	}
		770
		771	free_coro_mortal ();
		772
		773	UNLOCK;
		774	}
		775	}
		776
		777	struct transfer_args
		778	{
		779	struct coro prev, next;
		780	int flags;
		781	};
		782
		783	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)
781		784
782	static void	785	static void
783	coro_state_destroy (struct coro *coro)	786	coro_state_destroy (struct coro *coro)
784	{	787	{
785	if (coro->refcnt--)	788	if (coro->refcnt--)
…		…
787		790
788	if (coro->mainstack && coro->mainstack != main_mainstack)	791	if (coro->mainstack && coro->mainstack != main_mainstack)
789	{	792	{
790	struct coro temp;	793	struct coro temp;
791		794
792	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);	795	SAVE ((&temp), TRANSFER_SAVE_ALL);
793	LOAD (aTHX_ coro);	796	LOAD (coro);
794		797
795	destroy_stacks (aTHX);	798	coro_destroy_stacks ();
796		799
797	LOAD ((&temp)); /* this will get rid of defsv etc.. */	800	LOAD ((&temp)); /* this will get rid of defsv etc.. */
798		801
799	coro->mainstack = 0;	802	coro->mainstack = 0;
800	}	803	}
801		804
802	deallocate_stack (coro);	805	stack_free (coro->stack);
803	SvREFCNT_dec (coro->args);	806	SvREFCNT_dec (coro->args);
804	Safefree (coro);	807	Safefree (coro);
805	}	808	}
806		809
807	static int	810	static int
808	coro_state_clear (SV sv, MAGIC mg)	811	coro_state_clear (pTHX_ SV sv, MAGIC mg)
809	{	812	{
810	struct coro coro = (struct coro )mg->mg_ptr;	813	struct coro coro = (struct coro )mg->mg_ptr;
811	mg->mg_ptr = 0;	814	mg->mg_ptr = 0;
812		815
813	coro_state_destroy (coro);	816	coro_state_destroy (coro);
814		817
815	return 0;	818	return 0;
816	}	819	}
817		820
818	static int	821	static int
819	coro_state_dup (MAGIC mg, CLONE_PARAMS params)	822	coro_state_dup (pTHX_ MAGIC mg, CLONE_PARAMS params)
820	{	823	{
821	struct coro coro = (struct coro )mg->mg_ptr;	824	struct coro coro = (struct coro )mg->mg_ptr;
822		825
823	++coro->refcnt;	826	++coro->refcnt;
824		827
825	return 0;	828	return 0;
826	}	829	}
827		830
828	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };	831	static MGVTBL coro_state_vtbl = {
		832	0, 0, 0, 0,
		833	coro_state_clear,
		834	0,
		835	#ifdef MGf_DUP
		836	coro_state_dup,
		837	#else
		838	# define MGf_DUP 0
		839	#endif
		840	};
829		841
830	static struct coro *	842	static struct coro *
831	SvSTATE (SV *coro)	843	SvSTATE (SV *coro)
832	{	844	{
833	HV *stash;	845	HV *stash;
…		…
848	assert (mg->mg_type == PERL_MAGIC_ext);	860	assert (mg->mg_type == PERL_MAGIC_ext);
849	return (struct coro *)mg->mg_ptr;	861	return (struct coro *)mg->mg_ptr;
850	}	862	}
851		863
852	static void	864	static void
		865	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)
		866	{
		867	ta->prev = SvSTATE (prev);
		868	ta->next = SvSTATE (next);
		869	ta->flags = flags;
		870	}
		871
		872	static void
853	api_transfer (pTHX_ SV prev, SV next, int flags)	873	api_transfer (SV prev, SV next, int flags)
854	{	874	{
855	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	875	dTHX;
		876	struct transfer_args ta;
		877
		878	prepare_transfer (&ta, prev, next, flags);
		879	TRANSFER (ta);
856	}	880	}
857		881
858	/ Coro ******************************************************************/	882	/ Coro ******************************************************************/
859		883
860	#define PRIO_MAX 3	884	#define PRIO_MAX 3
…		…
868	static GV coro_current, coro_idle;	892	static GV coro_current, coro_idle;
869	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	893	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
870	static int coro_nready;	894	static int coro_nready;
871		895
872	static void	896	static void
873	coro_enq (pTHX_ SV *sv)	897	coro_enq (SV *sv)
874	{	898	{
875	int prio;	899	int prio;
876		900
877	if (SvTYPE (sv) != SVt_PVHV)	901	if (SvTYPE (sv) != SVt_PVHV)
878	croak ("Coro::ready tried to enqueue something that is not a coroutine");	902	croak ("Coro::ready tried to enqueue something that is not a coroutine");
…		…
882	av_push (coro_ready [prio - PRIO_MIN], sv);	906	av_push (coro_ready [prio - PRIO_MIN], sv);
883	coro_nready++;	907	coro_nready++;
884	}	908	}
885		909
886	static SV *	910	static SV *
887	coro_deq (pTHX_ int min_prio)	911	coro_deq (int min_prio)
888	{	912	{
889	int prio = PRIO_MAX - PRIO_MIN;	913	int prio = PRIO_MAX - PRIO_MIN;
890		914
891	min_prio -= PRIO_MIN;	915	min_prio -= PRIO_MIN;
892	if (min_prio < 0)	916	if (min_prio < 0)
…		…
909		933
910	if (SvROK (coro))	934	if (SvROK (coro))
911	coro = SvRV (coro);	935	coro = SvRV (coro);
912		936
913	LOCK;	937	LOCK;
914	coro_enq (aTHX_ SvREFCNT_inc (coro));	938	coro_enq (SvREFCNT_inc (coro));
915	UNLOCK;	939	UNLOCK;
916	}	940	}
917		941
918	static void	942	static void
919	api_schedule (void)	943	prepare_schedule (struct transfer_args *ta)
920	{	944	{
921	dTHX;
922
923	SV prev, next;	945	SV current, prev, *next;
		946
924	SV *current = GvSV (coro_current);	947	current = GvSV (coro_current);
925		948
926	for (;;)	949	for (;;)
927	{	950	{
928	LOCK;	951	LOCK;
929
930	next = coro_deq (aTHX_ PRIO_MIN);	952	next = coro_deq (PRIO_MIN);
		953	UNLOCK;
931		954
932	if (next)	955	if (next)
933	break;	956	break;
934
935	UNLOCK;
936		957
937	{	958	{
938	dSP;	959	dSP;
939		960
940	ENTER;	961	ENTER;
…		…
951		972
952	prev = SvRV (current);	973	prev = SvRV (current);
953	SvRV (current) = next;	974	SvRV (current) = next;
954		975
955	/* free this only after the transfer */	976	/* free this only after the transfer */
		977	LOCK;
		978	free_coro_mortal ();
		979	UNLOCK;
956	coro_mortal = prev;	980	coro_mortal = prev;
957		981
		982	ta->prev = SvSTATE (prev);
		983	ta->next = SvSTATE (next);
		984	ta->flags = TRANSFER_SAVE_ALL;
		985	}
		986
		987	static void
		988	prepare_cede (struct transfer_args *ta)
		989	{
		990	LOCK;
		991	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
958	UNLOCK;	992	UNLOCK;
959		993
960	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	994	prepare_schedule (ta);
961	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	995	}
		996
		997	static void
		998	api_schedule (void)
		999	{
		1000	dTHX;
		1001	struct transfer_args ta;
		1002
		1003	prepare_schedule (&ta);
		1004	TRANSFER (ta);
962	}	1005	}
963		1006
964	static void	1007	static void
965	api_cede (void)	1008	api_cede (void)
966	{	1009	{
967	dTHX;	1010	dTHX;
		1011	struct transfer_args ta;
968		1012
969	LOCK;	1013	prepare_cede (&ta);
970	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));	1014	TRANSFER (ta);
971	UNLOCK;
972
973	api_schedule ();
974	}	1015	}
975		1016
976	MODULE = Coro::State PACKAGE = Coro::State	1017	MODULE = Coro::State PACKAGE = Coro::State
977		1018
978	PROTOTYPES: DISABLE	1019	PROTOTYPES: DISABLE
…		…
987	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1028	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
988		1029
989	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1030	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
990	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1031	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
991	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1032	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
992	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
993		1033
994	main_mainstack = PL_mainstack;	1034	main_mainstack = PL_mainstack;
995		1035
996	coroapi.ver = CORO_API_VERSION;	1036	coroapi.ver = CORO_API_VERSION;
997	coroapi.transfer = api_transfer;	1037	coroapi.transfer = api_transfer;
…		…
1008	int i;	1048	int i;
1009		1049
1010	Newz (0, coro, 1, struct coro);	1050	Newz (0, coro, 1, struct coro);
1011	coro->args = newAV ();	1051	coro->args = newAV ();
1012		1052
1013	for (i = 1; i < items; i++)
1014	av_push (coro->args, newSVsv (ST (i)));
1015
1016	/coro->mainstack = 0; //actual work is done inside transfer /
1017	/coro->stack = 0;/
1018
1019	hv = newHV ();	1053	hv = newHV ();
1020	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1054	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1021	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1055	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
		1056
		1057	for (i = 1; i < items; i++)
		1058	av_push (coro->args, newSVsv (ST (i)));
		1059
		1060	/coro->mainstack = 0; //actual work is done inside transfer /
		1061	/coro->stack = 0;/
1022	}	1062	}
1023	OUTPUT:	1063	OUTPUT:
1024	RETVAL	1064	RETVAL
1025		1065
1026	void	1066	void
1027	transfer(prev, next, flags)	1067	_set_stacklevel (...)
1028	SV *prev	1068	ALIAS:
1029	SV *next	1069	Coro::State::transfer = 1
1030	int flags	1070	Coro::schedule = 2
		1071	Coro::cede = 3
		1072	Coro::Cont::yield = 4
1031	CODE:	1073	CODE:
1032	PUTBACK;
1033	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
1034	SPAGAIN;
1035
1036	int
1037	prio (Coro::State coro, int newprio = 0)
1038	ALIAS:
1039	nice = 1
1040	CODE:
1041	{	1074	{
1042	RETVAL = coro->prio;	1075	struct transfer_args ta;
1043		1076
1044	if (items > 1)	1077	switch (ix)
1045	{	1078	{
		1079	case 0:
		1080	ta.prev = (struct coro )INT2PTR (coro_stack , SvIV (ST (0)));
		1081	ta.next = 0;
		1082	ta.flags = TRANSFER_SET_STACKLEVEL;
		1083	break;
		1084
		1085	case 1:
1046	if (ix)	1086	if (items != 3)
1047	newprio += coro->prio;	1087	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);
1048		1088
1049	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1089	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));
1050	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1090	break;
1051		1091
1052	coro->prio = newprio;	1092	case 2:
		1093	prepare_schedule (&ta);
		1094	break;
		1095
		1096	case 3:
		1097	prepare_cede (&ta);
		1098	break;
		1099
		1100	case 4:
		1101	{
		1102	SV *yieldstack;
		1103	SV *sv;
		1104	AV *defav = GvAV (PL_defgv);
		1105
		1106	yieldstack = *hv_fetch (
		1107	(HV *)SvRV (GvSV (coro_current)),
		1108	"yieldstack", sizeof ("yieldstack") - 1,
		1109	0
		1110	);
		1111
		1112	/* set up @_ -- ugly */
		1113	av_clear (defav);
		1114	av_fill (defav, items - 1);
		1115	while (items--)
		1116	av_store (defav, items, SvREFCNT_inc (ST(items)));
		1117
		1118	sv = av_pop ((AV *)SvRV (yieldstack));
		1119	ta.prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
		1120	ta.next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
		1121	ta.flags = 0;
		1122	SvREFCNT_dec (sv);
		1123	}
		1124	break;
		1125
1053	}	1126	}
		1127
		1128	TRANSFER (ta);
1054	}	1129	}
1055		1130
1056	void	1131	void
1057	_clone_state_from (SV dst, SV src)	1132	_clone_state_from (SV dst, SV src)
1058	CODE:	1133	CODE:
…		…
1070	int code	1145	int code
1071	PROTOTYPE: $	1146	PROTOTYPE: $
1072	CODE:	1147	CODE:
1073	_exit (code);	1148	_exit (code);
1074		1149
1075	MODULE = Coro::State PACKAGE = Coro::Cont
1076
1077	void
1078	yield (...)
1079	PROTOTYPE: @
1080	CODE:
1081	{
1082	SV *yieldstack;
1083	SV *sv;
1084	AV *defav = GvAV (PL_defgv);
1085	struct coro prev, next;
1086
1087	yieldstack = *hv_fetch (
1088	(HV *)SvRV (GvSV (coro_current)),
1089	"yieldstack", sizeof ("yieldstack") - 1,
1090	0
1091	);
1092
1093	/* set up @_ -- ugly */
1094	av_clear (defav);
1095	av_fill (defav, items - 1);
1096	while (items--)
1097	av_store (defav, items, SvREFCNT_inc (ST(items)));
1098
1099	sv = av_pop ((AV *)SvRV (yieldstack));
1100	prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
1101	next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
1102	SvREFCNT_dec (sv);
1103
1104	coro_state_transfer (aTHX_ prev, next, 0);
1105	}
1106
1107	MODULE = Coro::State PACKAGE = Coro	1150	MODULE = Coro::State PACKAGE = Coro
1108		1151
1109	BOOT:	1152	BOOT:
1110	{	1153	{
1111	int i;	1154	int i;
…		…
1138	sv_setiv (sv, (IV)&coroapi);	1181	sv_setiv (sv, (IV)&coroapi);
1139	SvREADONLY_on (sv);	1182	SvREADONLY_on (sv);
1140	}	1183	}
1141	}	1184	}
1142		1185
1143	#if !PERL_MICRO	1186	int
		1187	prio (Coro::State coro, int newprio = 0)
		1188	ALIAS:
		1189	nice = 1
		1190	CODE:
		1191	{
		1192	RETVAL = coro->prio;
		1193
		1194	if (items > 1)
		1195	{
		1196	if (ix)
		1197	newprio += coro->prio;
		1198
		1199	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		1200	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		1201
		1202	coro->prio = newprio;
		1203	}
		1204	}
1144		1205
1145	void	1206	void
1146	ready (self)	1207	ready (SV *self)
1147	SV * self
1148	PROTOTYPE: $	1208	PROTOTYPE: $
1149	CODE:	1209	CODE:
1150	api_ready (self);	1210	api_ready (self);
1151
1152	#endif
1153		1211
1154	int	1212	int
1155	nready (...)	1213	nready (...)
1156	PROTOTYPE:	1214	PROTOTYPE:
1157	CODE:	1215	CODE:
1158	RETVAL = coro_nready;	1216	RETVAL = coro_nready;
1159	OUTPUT:	1217	OUTPUT:
1160	RETVAL	1218	RETVAL
1161		1219
1162	void	1220	MODULE = Coro::State PACKAGE = Coro::AIO
1163	schedule (...)
1164	PROTOTYPE:
1165	CODE:
1166	api_schedule ();
1167		1221
1168	void
1169	cede (...)
1170	PROTOTYPE:
1171	CODE:
1172	api_cede ();
1173
1174	# and these are hacks
1175	SV *	1222	SV *
1176	_aio_get_state ()	1223	_get_state ()
1177	CODE:	1224	CODE:
1178	{	1225	{
1179	struct {	1226	struct {
1180	int errorno;	1227	int errorno;
1181	int laststype;	1228	int laststype;
…		…
1192	}	1239	}
1193	OUTPUT:	1240	OUTPUT:
1194	RETVAL	1241	RETVAL
1195		1242
1196	void	1243	void
1197	_aio_set_state (char *data_)	1244	_set_state (char *data_)
1198	PROTOTYPE: $	1245	PROTOTYPE: $
1199	CODE:	1246	CODE:
1200	{	1247	{
1201	struct {	1248	struct {
1202	int errorno;	1249	int errorno;

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Comparing Coro/Coro/State.xs (file contents): Revision 1.88 by root, Fri Nov 24 15:34:33 2006 UTC vs. Revision 1.102 by root, Mon Nov 27 01:28:03 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.88 by root, Fri Nov 24 15:34:33 2006 UTC vs.
Revision 1.102 by root, Mon Nov 27 01:28:03 2006 UTC