[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 1.104 by root, Mon Nov 27 01:51:02 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	#if USE_VALGRIND
		10	# include <valgrind/valgrind.h>
		11	#endif
		12
		13	#define PERL_VERSION_ATLEAST(a,b,c) \
		14	(PERL_REVISION > (a) \
		15	\|\| (PERL_REVISION == (a) \
		16	&& (PERL_VERSION > (b) \
		17	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
		18
		19	#if !PERL_VERSION_ATLEAST (5,6,0)
12	# ifndef PL_ppaddr	20	# ifndef PL_ppaddr
13	# define PL_ppaddr ppaddr	21	# define PL_ppaddr ppaddr
14	# endif	22	# endif
15	# ifndef call_sv	23	# ifndef call_sv
16	# define call_sv perl_call_sv	24	# define call_sv perl_call_sv
27	# ifndef IS_PADCONST	35	# ifndef IS_PADCONST
28	# define IS_PADCONST(v) 0	36	# define IS_PADCONST(v) 0
29	# endif	37	# endif
30	#endif	38	#endif
31		39
		40	#include <stdio.h>
32	#include <errno.h>	41	#include <errno.h>
33		42
34	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	43	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
35	# undef STACKGUARD	44	# undef STACKGUARD
36	#endif	45	#endif
…		…
57	# else	66	# else
58	# define BOOT_PAGESIZE	67	# define BOOT_PAGESIZE
59	# endif	68	# endif
60	#endif	69	#endif
61		70
62	#define SUB_INIT "Coro::State::initialize"
63
64	/* The next macro should declare a variable stacklevel that contains and approximation	71	/* 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	72	* to the current C stack pointer. Its property is that it changes with each call
66	* and should be unique. */	73	* and should be unique. */
		74	#define dSTACKLEVEL int stacklevel
67	#define dSTACKLEVEL void *stacklevel = &stacklevel	75	#define STACKLEVEL ((void *)&stacklevel)
68		76
69	#define IN_DESTRUCT (PL_main_cv == Nullcv)	77	#define IN_DESTRUCT (PL_main_cv == Nullcv)
70		78
71	#define labs(l) ((l) >= 0 ? (l) : -(l))	79	#if __GNUC__ >= 3
		80	# define attribute(x) __attribute__(x)
		81	#else
		82	# define attribute(x)
		83	#endif
		84
		85	#define NOINLINE attribute ((noinline))
72		86
73	#include "CoroAPI.h"	87	#include "CoroAPI.h"
		88
		89	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
74		90
75	#ifdef USE_ITHREADS	91	#ifdef USE_ITHREADS
76	static perl_mutex coro_mutex;	92	static perl_mutex coro_mutex;
77	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	93	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
78	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	94	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
…		…
84	static struct CoroAPI coroapi;	100	static struct CoroAPI coroapi;
85	static AV main_mainstack; / used to differentiate between $main and others */	101	static AV main_mainstack; / used to differentiate between $main and others */
86	static HV coro_state_stash, coro_stash;	102	static HV coro_state_stash, coro_stash;
87	static SV coro_mortal; / will be freed after next transfer */	103	static SV coro_mortal; / will be freed after next transfer */
88		104
89	/* this is actually not only the c stack but also c registers etc... */	105	/* this is a structure representing a c-level coroutine */
90	typedef struct {	106	typedef struct coro_stack {
91	int refcnt; /* pointer reference counter */	107	struct coro_stack *next;
92	int usecnt; /* shared by how many coroutines */
93	int gencnt; /* generation counter */
94		108
95	coro_context cctx;	109	/* the stack */
96
97	void *sptr;	110	void *sptr;
98	long ssize; /* positive == mmap, otherwise malloc */	111	long ssize; /* positive == mmap, otherwise malloc */
		112
		113	/* cpu state */
		114	void idle_sp; / sp of top-level transfer/schedule/cede call */
		115	JMPENV *top_env;
		116	coro_context cctx;
		117
		118	#if USE_VALGRIND
		119	int valgrind_id;
		120	#endif
99	} coro_stack;	121	} coro_stack;
100		122
		123	/* this is a structure representing a perl-level coroutine */
101	struct coro {	124	struct coro {
102	/* the optional C context */	125	/* the c coroutine allocated to this perl coroutine, if any */
103	coro_stack *stack;	126	coro_stack *stack;
104	void *cursp;	127
		128	/* data associated with this coroutine (initial args) */
		129	AV *args;
105	int gencnt;	130	int refcnt;
106		131
107	/* optionally saved, might be zero */	132	/* optionally saved, might be zero */
108	AV *defav;	133	AV *defav;
109	SV *defsv;	134	SV *defsv;
110	SV *errsv;	135	SV *errsv;
…		…
140	OP **retstack;	165	OP **retstack;
141	I32 retstack_ix;	166	I32 retstack_ix;
142	I32 retstack_max;	167	I32 retstack_max;
143	PMOP *curpm;	168	PMOP *curpm;
144	COP *curcop;	169	COP *curcop;
145	JMPENV *top_env;
146		170
147	/* coro process data */	171	/* coro process data */
148	int prio;	172	int prio;
149
150	/* data associated with this coroutine (initial args) */
151	AV *args;
152	int refcnt;
153	};	173	};
154		174
155	typedef struct coro *Coro__State;	175	typedef struct coro *Coro__State;
156	typedef struct coro *Coro__State_or_hashref;	176	typedef struct coro *Coro__State_or_hashref;
157		177
158	static AV *	178	static AV *
159	coro_clone_padlist (pTHX_ CV *cv)	179	coro_clone_padlist (CV *cv)
160	{	180	{
161	AV *padlist = CvPADLIST (cv);	181	AV *padlist = CvPADLIST (cv);
162	AV newpadlist, newpad;	182	AV newpadlist, newpad;
163		183
164	newpadlist = newAV ();	184	newpadlist = newAV ();
165	AvREAL_off (newpadlist);	185	AvREAL_off (newpadlist);
166	#if PERL_VERSION < 9	186	#if PERL_VERSION_ATLEAST (5,9,0)
		187	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
		188	#else
167	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	189	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
168	#else
169	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
170	#endif	190	#endif
171	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	191	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
172	--AvFILLp (padlist);	192	--AvFILLp (padlist);
173		193
174	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	194	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
…		…
176		196
177	return newpadlist;	197	return newpadlist;
178	}	198	}
179		199
180	static void	200	static void
181	free_padlist (pTHX_ AV *padlist)	201	free_padlist (AV *padlist)
182	{	202	{
183	/* may be during global destruction */	203	/* may be during global destruction */
184	if (SvREFCNT (padlist))	204	if (SvREFCNT (padlist))
185	{	205	{
186	I32 i = AvFILLp (padlist);	206	I32 i = AvFILLp (padlist);
…		…
207	AV *padlist;	227	AV *padlist;
208	AV av = (AV )mg->mg_obj;	228	AV av = (AV )mg->mg_obj;
209		229
210	/* casting is fun. */	230	/* casting is fun. */
211	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	231	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
212	free_padlist (aTHX_ padlist);	232	free_padlist (padlist);
213		233
214	SvREFCNT_dec (av);	234	SvREFCNT_dec (av);
215		235
216	return 0;	236	return 0;
217	}	237	}
…		…
220		240
221	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	241	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
222		242
223	/* the next two functions merely cache the padlists */	243	/* the next two functions merely cache the padlists */
224	static void	244	static void
225	get_padlist (pTHX_ CV *cv)	245	get_padlist (CV *cv)
226	{	246	{
227	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	247	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
228		248
229	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	249	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
230	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	250	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
231	else	251	else
232	{	252	{
233	#if 0	253	#if 0
234	/* this should work - but it doesn't :( */	254	/* this is probably cleaner, but also slower? */
235	CV *cp = Perl_cv_clone (aTHX_ cv);	255	CV *cp = Perl_cv_clone (cv);
236	CvPADLIST (cv) = CvPADLIST (cp);	256	CvPADLIST (cv) = CvPADLIST (cp);
237	CvPADLIST (cp) = 0;	257	CvPADLIST (cp) = 0;
238	SvREFCNT_dec (cp);	258	SvREFCNT_dec (cp);
239	#else	259	#else
240	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	260	CvPADLIST (cv) = coro_clone_padlist (cv);
241	#endif	261	#endif
242	}	262	}
243	}	263	}
244		264
245	static void	265	static void
246	put_padlist (pTHX_ CV *cv)	266	put_padlist (CV *cv)
247	{	267	{
248	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	268	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
249		269
250	if (!mg)	270	if (!mg)
251	{	271	{
…		…
259	}	279	}
260		280
261	#define SB do {	281	#define SB do {
262	#define SE } while (0)	282	#define SE } while (0)
263		283
264	#define LOAD(state) load_state(aTHX_ (state));	284	#define LOAD(state) load_state((state));
265	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	285	#define SAVE(state,flags) save_state((state),(flags));
266		286
267	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	287	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
268		288
269	static void	289	static void
270	load_state(pTHX_ Coro__State c)	290	load_state(Coro__State c)
271	{	291	{
272	PL_dowarn = c->dowarn;	292	PL_dowarn = c->dowarn;
273	PL_in_eval = c->in_eval;	293	PL_in_eval = c->in_eval;
274		294
275	PL_curstackinfo = c->curstackinfo;	295	PL_curstackinfo = c->curstackinfo;
…		…
293	PL_scopestack_ix = c->scopestack_ix;	313	PL_scopestack_ix = c->scopestack_ix;
294	PL_scopestack_max = c->scopestack_max;	314	PL_scopestack_max = c->scopestack_max;
295	PL_savestack = c->savestack;	315	PL_savestack = c->savestack;
296	PL_savestack_ix = c->savestack_ix;	316	PL_savestack_ix = c->savestack_ix;
297	PL_savestack_max = c->savestack_max;	317	PL_savestack_max = c->savestack_max;
298	#if PERL_VERSION < 9	318	#if !PERL_VERSION_ATLEAST (5,9,0)
299	PL_retstack = c->retstack;	319	PL_retstack = c->retstack;
300	PL_retstack_ix = c->retstack_ix;	320	PL_retstack_ix = c->retstack_ix;
301	PL_retstack_max = c->retstack_max;	321	PL_retstack_max = c->retstack_max;
302	#endif	322	#endif
303	PL_curpm = c->curpm;	323	PL_curpm = c->curpm;
304	PL_curcop = c->curcop;	324	PL_curcop = c->curcop;
305	PL_top_env = c->top_env;
306		325
307	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	326	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
308	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	327	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
309	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	328	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
310		329
…		…
317	{	336	{
318	AV padlist = (AV )POPs;	337	AV padlist = (AV )POPs;
319		338
320	if (padlist)	339	if (padlist)
321	{	340	{
322	put_padlist (aTHX_ cv); /* mark this padlist as available */	341	put_padlist (cv); /* mark this padlist as available */
323	CvPADLIST(cv) = padlist;	342	CvPADLIST(cv) = padlist;
324	}	343	}
325		344
326	++CvDEPTH(cv);	345	++CvDEPTH(cv);
327	}	346	}
…		…
329	PUTBACK;	348	PUTBACK;
330	}	349	}
331	}	350	}
332		351
333	static void	352	static void
334	save_state(pTHX_ Coro__State c, int flags)	353	save_state(Coro__State c, int flags)
335	{	354	{
336	{	355	{
337	dSP;	356	dSP;
338	I32 cxix = cxstack_ix;	357	I32 cxix = cxstack_ix;
339	PERL_CONTEXT *ccstk = cxstack;	358	PERL_CONTEXT *ccstk = cxstack;
…		…
367	}	386	}
368		387
369	PUSHs ((SV *)CvPADLIST(cv));	388	PUSHs ((SV *)CvPADLIST(cv));
370	PUSHs ((SV *)cv);	389	PUSHs ((SV *)cv);
371		390
372	get_padlist (aTHX_ cv);	391	get_padlist (cv);
373	}	392	}
374	}	393	}
375	#ifdef CXt_FORMAT	394	#ifdef CXt_FORMAT
376	else if (CxTYPE(cx) == CXt_FORMAT)	395	else if (CxTYPE(cx) == CXt_FORMAT)
377	{	396	{
…		…
421	c->scopestack_ix = PL_scopestack_ix;	440	c->scopestack_ix = PL_scopestack_ix;
422	c->scopestack_max = PL_scopestack_max;	441	c->scopestack_max = PL_scopestack_max;
423	c->savestack = PL_savestack;	442	c->savestack = PL_savestack;
424	c->savestack_ix = PL_savestack_ix;	443	c->savestack_ix = PL_savestack_ix;
425	c->savestack_max = PL_savestack_max;	444	c->savestack_max = PL_savestack_max;
426	#if PERL_VERSION < 9	445	#if !PERL_VERSION_ATLEAST (5,9,0)
427	c->retstack = PL_retstack;	446	c->retstack = PL_retstack;
428	c->retstack_ix = PL_retstack_ix;	447	c->retstack_ix = PL_retstack_ix;
429	c->retstack_max = PL_retstack_max;	448	c->retstack_max = PL_retstack_max;
430	#endif	449	#endif
431	c->curpm = PL_curpm;	450	c->curpm = PL_curpm;
432	c->curcop = PL_curcop;	451	c->curcop = PL_curcop;
433	c->top_env = PL_top_env;
434	}	452	}
435		453
436	/*	454	/*
437	* allocate various perl stacks. This is an exact copy	455	* allocate various perl stacks. This is an exact copy
438	* of perl.c:init_stacks, except that it uses less memory	456	* of perl.c:init_stacks, except that it uses less memory
439	* on the (sometimes correct) assumption that coroutines do	457	* on the (sometimes correct) assumption that coroutines do
440	* not usually need a lot of stackspace.	458	* not usually need a lot of stackspace.
441	*/	459	*/
442	static void	460	static void
443	coro_init_stacks (pTHX)	461	coro_init_stacks ()
444	{	462	{
445	LOCK;
446
447	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	463	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
448	PL_curstackinfo->si_type = PERLSI_MAIN;	464	PL_curstackinfo->si_type = PERLSI_MAIN;
449	PL_curstack = PL_curstackinfo->si_stack;	465	PL_curstack = PL_curstackinfo->si_stack;
450	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	466	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
451		467
…		…
472		488
473	New(54,PL_savestack,96,ANY);	489	New(54,PL_savestack,96,ANY);
474	PL_savestack_ix = 0;	490	PL_savestack_ix = 0;
475	PL_savestack_max = 96;	491	PL_savestack_max = 96;
476		492
477	#if PERL_VERSION < 9	493	#if !PERL_VERSION_ATLEAST (5,9,0)
478	New(54,PL_retstack,8,OP*);	494	New(54,PL_retstack,8,OP*);
479	PL_retstack_ix = 0;	495	PL_retstack_ix = 0;
480	PL_retstack_max = 8;	496	PL_retstack_max = 8;
481	#endif	497	#endif
482
483	UNLOCK;
484	}	498	}
485		499
486	/*	500	/*
487	* destroy the stacks, the callchain etc...	501	* destroy the stacks, the callchain etc...
488	*/	502	*/
489	static void	503	static void
490	destroy_stacks(pTHX)	504	coro_destroy_stacks()
491	{	505	{
492	if (!IN_DESTRUCT)	506	if (!IN_DESTRUCT)
493	{	507	{
494	/* is this ugly, I ask? */	508	/* is this ugly, I ask? */
495	LEAVE_SCOPE (0);	509	LEAVE_SCOPE (0);
…		…
526		540
527	Safefree (PL_tmps_stack);	541	Safefree (PL_tmps_stack);
528	Safefree (PL_markstack);	542	Safefree (PL_markstack);
529	Safefree (PL_scopestack);	543	Safefree (PL_scopestack);
530	Safefree (PL_savestack);	544	Safefree (PL_savestack);
531	#if PERL_VERSION < 9	545	#if !PERL_VERSION_ATLEAST (5,9,0)
532	Safefree (PL_retstack);	546	Safefree (PL_retstack);
533	#endif	547	#endif
534	}	548	}
535		549
536	static void	550	static void
537	allocate_stack (Coro__State ctx, int alloc)	551	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	{	552	{
599	/*	553	/*
600	* emulate part of the perl startup here.	554	* emulate part of the perl startup here.
601	*/	555	*/
602	dTHX;
603	dSP;
604	Coro__State ctx = (Coro__State)arg;
605	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
606		556
607	coro_init_stacks (aTHX);	557	coro_init_stacks ();
		558
608	/PL_curcop = 0;/	559	PL_curcop = 0;
609	/PL_in_eval = PL_in_eval;/ /* inherit */	560	PL_in_eval = 0;
		561	PL_curpm = 0;
		562
		563	{
		564	dSP;
		565	LOGOP myop;
		566
		567	/* I have no idea why this is needed, but it is */
		568	PUSHMARK (SP);
		569
610	SvREFCNT_dec (GvAV (PL_defgv));	570	SvREFCNT_dec (GvAV (PL_defgv));
611	GvAV (PL_defgv) = ctx->args; ctx->args = 0;	571	GvAV (PL_defgv) = coro->args; coro->args = 0;
612		572
613	SPAGAIN;
614
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);	573	Zero (&myop, 1, LOGOP);
633	myop.op_next = Nullop;	574	myop.op_next = Nullop;
634	myop.op_flags = OPf_WANT_VOID;	575	myop.op_flags = OPf_WANT_VOID;
635		576
636	PL_op = (OP *)&myop;	577	PL_op = (OP *)&myop;
637		578
638	PUSHMARK(SP);	579	PUSHMARK (SP);
639	XPUSHs (sub_init);	580	XPUSHs ((SV *)get_cv ("Coro::State::coro_init", FALSE));
640	/*
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;	581	PUTBACK;
648	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	582	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
649	SPAGAIN;	583	SPAGAIN;
650		584
651	ENTER; /* necessary e.g. for dounwind */	585	ENTER; /* necessary e.g. for dounwind */
652	}	586	}
653	}	587	}
654		588
655	static void	589	static void
656	continue_coro (void *arg)	590	free_coro_mortal ()
657	{	591	{
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)	592	if (coro_mortal)
771	{	593	{
772	SvREFCNT_dec (coro_mortal);	594	SvREFCNT_dec (coro_mortal);
773	coro_mortal = 0;	595	coro_mortal = 0;
774	}	596	}
		597	}
		598
		599	static void NOINLINE
		600	prepare_cctx (coro_stack *cctx)
		601	{
		602	dSP;
		603	LOGOP myop;
		604
		605	Zero (&myop, 1, LOGOP);
		606	myop.op_next = PL_op;
		607	myop.op_flags = OPf_WANT_VOID;
		608
		609	sv_setiv (get_sv ("Coro::State::cctx_stack", FALSE), PTR2IV (cctx));
		610
		611	PUSHMARK (SP);
		612	XPUSHs ((SV *)get_cv ("Coro::State::cctx_init", FALSE));
		613	PUTBACK;
		614	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);
		615	SPAGAIN;
		616	}
		617
		618	static void
		619	coro_run (void *arg)
		620	{
		621	/* coro_run is the alternative epilogue of transfer() */
775	UNLOCK;	622	UNLOCK;
776	}
777		623
778	/* use this function pointer to call the above function */	624	/*
779	/* this is done to increase chances of the compiler not inlining the call */	625	* this is a _very_ stripped down perl interpreter ;)
780	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;	626	*/
		627	PL_top_env = &PL_start_env;
		628	/* inject call to cctx_init */
		629	prepare_cctx ((coro_stack *)arg);
		630
		631	/* somebody will hit me for both perl_run and PL_restartop */
		632	perl_run (PL_curinterp);
		633
		634	fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr);
		635	abort ();
		636	}
		637
		638	static coro_stack *
		639	stack_new ()
		640	{
		641	coro_stack *stack;
		642
		643	New (0, stack, 1, coro_stack);
		644
		645	#if HAVE_MMAP
		646
		647	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
		648	/* mmap suppsedly does allocate-on-write for us */
		649	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
		650
		651	if (stack->sptr == (void *)-1)
		652	{
		653	perror ("FATAL: unable to mmap stack for coroutine");
		654	_exit (EXIT_FAILURE);
		655	}
		656
		657	# if STACKGUARD
		658	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		659	# endif
		660
		661	#else
		662
		663	stack->ssize = STACKSIZE * (long)sizeof (long);
		664	New (0, stack->sptr, STACKSIZE, long);
		665
		666	if (!stack->sptr)
		667	{
		668	perror (stderr, "FATAL: unable to malloc stack for coroutine");
		669	_exit (EXIT_FAILURE);
		670	}
		671
		672	#endif
		673
		674	#if USE_VALGRIND
		675	stack->valgrind_id = VALGRIND_STACK_REGISTER (
		676	STACKGUARD * PAGESIZE + (char *)stack->sptr,
		677	stack->ssize + (char *)stack->sptr
		678	);
		679	#endif
		680
		681	coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize);
		682
		683	return stack;
		684	}
		685
		686	static void
		687	stack_free (coro_stack *stack)
		688	{
		689	if (!stack)
		690	return;
		691
		692	#if USE_VALGRIND
		693	VALGRIND_STACK_DEREGISTER (stack->valgrind_id);
		694	#endif
		695
		696	#if HAVE_MMAP
		697	munmap (stack->sptr, stack->ssize);
		698	#else
		699	Safefree (stack->sptr);
		700	#endif
		701
		702	Safefree (stack);
		703	}
		704
		705	static coro_stack *stack_first;
		706	static int cctx_count, cctx_idle;
		707
		708	static coro_stack *
		709	stack_get ()
		710	{
		711	coro_stack *stack;
		712
		713	if (stack_first)
		714	{
		715	--cctx_idle;
		716	stack = stack_first;
		717	stack_first = stack->next;
		718	}
		719	else
		720	{
		721	++cctx_count;
		722	stack = stack_new ();
		723	PL_op = PL_op->op_next;
		724	}
		725
		726	return stack;
		727	}
		728
		729	static void
		730	stack_put (coro_stack *stack)
		731	{
		732	++cctx_idle;
		733	stack->next = stack_first;
		734	stack_first = stack;
		735	}
		736
		737	/* never call directly, always through the coro_state_transfer global variable */
		738	static void NOINLINE
		739	transfer (struct coro prev, struct coro next, int flags)
		740	{
		741	dSTACKLEVEL;
		742
		743	/* sometimes transfer is only called to set idle_sp */
		744	if (flags == TRANSFER_SET_STACKLEVEL)
		745	((coro_stack *)prev)->idle_sp = STACKLEVEL;
		746	else if (prev != next)
		747	{
		748	coro_stack *prev__stack;
		749
		750	LOCK;
		751
		752	if (next->mainstack)
		753	{
		754	/* coroutine already started */
		755	SAVE (prev, flags);
		756	LOAD (next);
		757	}
		758	else
		759	{
		760	/* need to start coroutine */
		761	/* first get rid of the old state */
		762	SAVE (prev, -1);
		763	/* setup coroutine call */
		764	setup_coro (next);
		765	/* need a stack */
		766	next->stack = 0;
		767	}
		768
		769	if (!prev->stack)
		770	/* create a new empty context */
		771	Newz (0, prev->stack, 1, coro_stack);
		772
		773	prev__stack = prev->stack;
		774
		775	/* possibly "free" the stack */
		776	if (prev__stack->idle_sp == STACKLEVEL)
		777	{
		778	stack_put (prev__stack);
		779	prev->stack = 0;
		780	}
		781
		782	if (!next->stack)
		783	next->stack = stack_get ();
		784
		785	if (prev__stack != next->stack)
		786	{
		787	prev__stack->top_env = PL_top_env;
		788	PL_top_env = next->stack->top_env;
		789	coro_transfer (&prev__stack->cctx, &next->stack->cctx);
		790	}
		791
		792	free_coro_mortal ();
		793
		794	UNLOCK;
		795	}
		796	}
		797
		798	struct transfer_args
		799	{
		800	struct coro prev, next;
		801	int flags;
		802	};
		803
		804	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)
781		805
782	static void	806	static void
783	coro_state_destroy (struct coro *coro)	807	coro_state_destroy (struct coro *coro)
784	{	808	{
785	if (coro->refcnt--)	809	if (coro->refcnt--)
…		…
787		811
788	if (coro->mainstack && coro->mainstack != main_mainstack)	812	if (coro->mainstack && coro->mainstack != main_mainstack)
789	{	813	{
790	struct coro temp;	814	struct coro temp;
791		815
792	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);	816	SAVE ((&temp), TRANSFER_SAVE_ALL);
793	LOAD (aTHX_ coro);	817	LOAD (coro);
794		818
795	destroy_stacks (aTHX);	819	coro_destroy_stacks ();
796		820
797	LOAD ((&temp)); /* this will get rid of defsv etc.. */	821	LOAD ((&temp)); /* this will get rid of defsv etc.. */
798		822
799	coro->mainstack = 0;	823	coro->mainstack = 0;
800	}	824	}
801		825
802	deallocate_stack (coro);	826	stack_free (coro->stack);
803	SvREFCNT_dec (coro->args);	827	SvREFCNT_dec (coro->args);
804	Safefree (coro);	828	Safefree (coro);
805	}	829	}
806		830
807	static int	831	static int
808	coro_state_clear (SV sv, MAGIC mg)	832	coro_state_clear (pTHX_ SV sv, MAGIC mg)
809	{	833	{
810	struct coro coro = (struct coro )mg->mg_ptr;	834	struct coro coro = (struct coro )mg->mg_ptr;
811	mg->mg_ptr = 0;	835	mg->mg_ptr = 0;
812		836
813	coro_state_destroy (coro);	837	coro_state_destroy (coro);
814		838
815	return 0;	839	return 0;
816	}	840	}
817		841
818	static int	842	static int
819	coro_state_dup (MAGIC mg, CLONE_PARAMS params)	843	coro_state_dup (pTHX_ MAGIC mg, CLONE_PARAMS params)
820	{	844	{
821	struct coro coro = (struct coro )mg->mg_ptr;	845	struct coro coro = (struct coro )mg->mg_ptr;
822		846
823	++coro->refcnt;	847	++coro->refcnt;
824		848
825	return 0;	849	return 0;
826	}	850	}
827		851
828	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };	852	static MGVTBL coro_state_vtbl = {
		853	0, 0, 0, 0,
		854	coro_state_clear,
		855	0,
		856	#ifdef MGf_DUP
		857	coro_state_dup,
		858	#else
		859	# define MGf_DUP 0
		860	#endif
		861	};
829		862
830	static struct coro *	863	static struct coro *
831	SvSTATE (SV *coro)	864	SvSTATE (SV *coro)
832	{	865	{
833	HV *stash;	866	HV *stash;
…		…
848	assert (mg->mg_type == PERL_MAGIC_ext);	881	assert (mg->mg_type == PERL_MAGIC_ext);
849	return (struct coro *)mg->mg_ptr;	882	return (struct coro *)mg->mg_ptr;
850	}	883	}
851		884
852	static void	885	static void
		886	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)
		887	{
		888	ta->prev = SvSTATE (prev);
		889	ta->next = SvSTATE (next);
		890	ta->flags = flags;
		891	}
		892
		893	static void
853	api_transfer (pTHX_ SV prev, SV next, int flags)	894	api_transfer (SV prev, SV next, int flags)
854	{	895	{
855	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	896	dTHX;
		897	struct transfer_args ta;
		898
		899	prepare_transfer (&ta, prev, next, flags);
		900	TRANSFER (ta);
856	}	901	}
857		902
858	/ Coro ******************************************************************/	903	/ Coro ******************************************************************/
859		904
860	#define PRIO_MAX 3	905	#define PRIO_MAX 3
…		…
868	static GV coro_current, coro_idle;	913	static GV coro_current, coro_idle;
869	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	914	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
870	static int coro_nready;	915	static int coro_nready;
871		916
872	static void	917	static void
873	coro_enq (pTHX_ SV *sv)	918	coro_enq (SV *sv)
874	{	919	{
875	int prio;	920	int prio;
876		921
877	if (SvTYPE (sv) != SVt_PVHV)	922	if (SvTYPE (sv) != SVt_PVHV)
878	croak ("Coro::ready tried to enqueue something that is not a coroutine");	923	croak ("Coro::ready tried to enqueue something that is not a coroutine");
…		…
882	av_push (coro_ready [prio - PRIO_MIN], sv);	927	av_push (coro_ready [prio - PRIO_MIN], sv);
883	coro_nready++;	928	coro_nready++;
884	}	929	}
885		930
886	static SV *	931	static SV *
887	coro_deq (pTHX_ int min_prio)	932	coro_deq (int min_prio)
888	{	933	{
889	int prio = PRIO_MAX - PRIO_MIN;	934	int prio = PRIO_MAX - PRIO_MIN;
890		935
891	min_prio -= PRIO_MIN;	936	min_prio -= PRIO_MIN;
892	if (min_prio < 0)	937	if (min_prio < 0)
…		…
909		954
910	if (SvROK (coro))	955	if (SvROK (coro))
911	coro = SvRV (coro);	956	coro = SvRV (coro);
912		957
913	LOCK;	958	LOCK;
914	coro_enq (aTHX_ SvREFCNT_inc (coro));	959	coro_enq (SvREFCNT_inc (coro));
915	UNLOCK;	960	UNLOCK;
916	}	961	}
917		962
918	static void	963	static void
919	api_schedule (void)	964	prepare_schedule (struct transfer_args *ta)
920	{	965	{
921	dTHX;
922
923	SV prev, next;	966	SV current, prev, *next;
		967
924	SV *current = GvSV (coro_current);	968	current = GvSV (coro_current);
925		969
926	for (;;)	970	for (;;)
927	{	971	{
928	LOCK;	972	LOCK;
929
930	next = coro_deq (aTHX_ PRIO_MIN);	973	next = coro_deq (PRIO_MIN);
		974	UNLOCK;
931		975
932	if (next)	976	if (next)
933	break;	977	break;
934
935	UNLOCK;
936		978
937	{	979	{
938	dSP;	980	dSP;
939		981
940	ENTER;	982	ENTER;
…		…
951		993
952	prev = SvRV (current);	994	prev = SvRV (current);
953	SvRV (current) = next;	995	SvRV (current) = next;
954		996
955	/* free this only after the transfer */	997	/* free this only after the transfer */
		998	LOCK;
		999	free_coro_mortal ();
		1000	UNLOCK;
956	coro_mortal = prev;	1001	coro_mortal = prev;
957		1002
		1003	ta->prev = SvSTATE (prev);
		1004	ta->next = SvSTATE (next);
		1005	ta->flags = TRANSFER_SAVE_ALL;
		1006	}
		1007
		1008	static void
		1009	prepare_cede (struct transfer_args *ta)
		1010	{
		1011	LOCK;
		1012	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
958	UNLOCK;	1013	UNLOCK;
959		1014
960	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	1015	prepare_schedule (ta);
961	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	1016	}
		1017
		1018	static void
		1019	api_schedule (void)
		1020	{
		1021	dTHX;
		1022	struct transfer_args ta;
		1023
		1024	prepare_schedule (&ta);
		1025	TRANSFER (ta);
962	}	1026	}
963		1027
964	static void	1028	static void
965	api_cede (void)	1029	api_cede (void)
966	{	1030	{
967	dTHX;	1031	dTHX;
		1032	struct transfer_args ta;
968		1033
969	LOCK;	1034	prepare_cede (&ta);
970	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));	1035	TRANSFER (ta);
971	UNLOCK;
972
973	api_schedule ();
974	}	1036	}
975		1037
976	MODULE = Coro::State PACKAGE = Coro::State	1038	MODULE = Coro::State PACKAGE = Coro::State
977		1039
978	PROTOTYPES: DISABLE	1040	PROTOTYPES: DISABLE
…		…
987	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1049	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
988		1050
989	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1051	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
990	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1052	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
991	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1053	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
992	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
993		1054
994	main_mainstack = PL_mainstack;	1055	main_mainstack = PL_mainstack;
995		1056
996	coroapi.ver = CORO_API_VERSION;	1057	coroapi.ver = CORO_API_VERSION;
997	coroapi.transfer = api_transfer;	1058	coroapi.transfer = api_transfer;
…		…
1008	int i;	1069	int i;
1009		1070
1010	Newz (0, coro, 1, struct coro);	1071	Newz (0, coro, 1, struct coro);
1011	coro->args = newAV ();	1072	coro->args = newAV ();
1012		1073
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 ();	1074	hv = newHV ();
1020	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1075	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));	1076	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
		1077
		1078	for (i = 1; i < items; i++)
		1079	av_push (coro->args, newSVsv (ST (i)));
		1080
		1081	/coro->mainstack = 0; //actual work is done inside transfer /
		1082	/coro->stack = 0;/
1022	}	1083	}
1023	OUTPUT:	1084	OUTPUT:
1024	RETVAL	1085	RETVAL
1025		1086
1026	void	1087	void
1027	transfer(prev, next, flags)	1088	_set_stacklevel (...)
1028	SV *prev	1089	ALIAS:
1029	SV *next	1090	Coro::State::transfer = 1
1030	int flags	1091	Coro::schedule = 2
		1092	Coro::cede = 3
		1093	Coro::Cont::yield = 4
1031	CODE:	1094	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	{	1095	{
1042	RETVAL = coro->prio;	1096	struct transfer_args ta;
1043		1097
1044	if (items > 1)	1098	switch (ix)
1045	{	1099	{
		1100	case 0:
		1101	ta.prev = (struct coro )INT2PTR (coro_stack , SvIV (ST (0)));
		1102	ta.next = 0;
		1103	ta.flags = TRANSFER_SET_STACKLEVEL;
		1104	break;
		1105
		1106	case 1:
1046	if (ix)	1107	if (items != 3)
1047	newprio += coro->prio;	1108	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);
1048		1109
1049	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1110	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));
1050	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1111	break;
1051		1112
1052	coro->prio = newprio;	1113	case 2:
		1114	prepare_schedule (&ta);
		1115	break;
		1116
		1117	case 3:
		1118	prepare_cede (&ta);
		1119	break;
		1120
		1121	case 4:
		1122	{
		1123	SV *yieldstack;
		1124	SV *sv;
		1125	AV *defav = GvAV (PL_defgv);
		1126
		1127	yieldstack = *hv_fetch (
		1128	(HV *)SvRV (GvSV (coro_current)),
		1129	"yieldstack", sizeof ("yieldstack") - 1,
		1130	0
		1131	);
		1132
		1133	/* set up @_ -- ugly */
		1134	av_clear (defav);
		1135	av_fill (defav, items - 1);
		1136	while (items--)
		1137	av_store (defav, items, SvREFCNT_inc (ST(items)));
		1138
		1139	sv = av_pop ((AV *)SvRV (yieldstack));
		1140	ta.prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
		1141	ta.next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
		1142	ta.flags = 0;
		1143	SvREFCNT_dec (sv);
		1144	}
		1145	break;
		1146
1053	}	1147	}
		1148
		1149	TRANSFER (ta);
1054	}	1150	}
1055		1151
1056	void	1152	void
1057	_clone_state_from (SV dst, SV src)	1153	_clone_state_from (SV dst, SV src)
1058	CODE:	1154	CODE:
…		…
1070	int code	1166	int code
1071	PROTOTYPE: $	1167	PROTOTYPE: $
1072	CODE:	1168	CODE:
1073	_exit (code);	1169	_exit (code);
1074		1170
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	1171	MODULE = Coro::State PACKAGE = Coro
1108		1172
1109	BOOT:	1173	BOOT:
1110	{	1174	{
1111	int i;	1175	int i;
…		…
1138	sv_setiv (sv, (IV)&coroapi);	1202	sv_setiv (sv, (IV)&coroapi);
1139	SvREADONLY_on (sv);	1203	SvREADONLY_on (sv);
1140	}	1204	}
1141	}	1205	}
1142		1206
1143	#if !PERL_MICRO	1207	int
		1208	prio (Coro::State coro, int newprio = 0)
		1209	ALIAS:
		1210	nice = 1
		1211	CODE:
		1212	{
		1213	RETVAL = coro->prio;
		1214
		1215	if (items > 1)
		1216	{
		1217	if (ix)
		1218	newprio += coro->prio;
		1219
		1220	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		1221	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		1222
		1223	coro->prio = newprio;
		1224	}
		1225	}
1144		1226
1145	void	1227	void
1146	ready (self)	1228	ready (SV *self)
1147	SV * self
1148	PROTOTYPE: $	1229	PROTOTYPE: $
1149	CODE:	1230	CODE:
1150	api_ready (self);	1231	api_ready (self);
1151
1152	#endif
1153		1232
1154	int	1233	int
1155	nready (...)	1234	nready (...)
1156	PROTOTYPE:	1235	PROTOTYPE:
1157	CODE:	1236	CODE:
1158	RETVAL = coro_nready;	1237	RETVAL = coro_nready;
1159	OUTPUT:	1238	OUTPUT:
1160	RETVAL	1239	RETVAL
1161		1240
1162	void	1241	MODULE = Coro::State PACKAGE = Coro::AIO
1163	schedule (...)
1164	PROTOTYPE:
1165	CODE:
1166	api_schedule ();
1167		1242
1168	void
1169	cede (...)
1170	PROTOTYPE:
1171	CODE:
1172	api_cede ();
1173
1174	# and these are hacks
1175	SV *	1243	SV *
1176	_aio_get_state ()	1244	_get_state ()
1177	CODE:	1245	CODE:
1178	{	1246	{
1179	struct {	1247	struct {
1180	int errorno;	1248	int errorno;
1181	int laststype;	1249	int laststype;
…		…
1192	}	1260	}
1193	OUTPUT:	1261	OUTPUT:
1194	RETVAL	1262	RETVAL
1195		1263
1196	void	1264	void
1197	_aio_set_state (char *data_)	1265	_set_state (char *data_)
1198	PROTOTYPE: $	1266	PROTOTYPE: $
1199	CODE:	1267	CODE:
1200	{	1268	{
1201	struct {	1269	struct {
1202	int errorno;	1270	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 1.104 by root, Mon Nov 27 01:51:02 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 1.104 by root, Mon Nov 27 01:51:02 2006 UTC