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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.89 by root, Sat Nov 25 00:40:26 2006 UTC vs.
Revision 1.106 by root, Mon Nov 27 02:08:55 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
…		…
53	# ifndef PAGESIZE	62	# ifndef PAGESIZE
54	# define PAGESIZE pagesize	63	# define PAGESIZE pagesize
55	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)	64	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
56	static long pagesize;	65	static long pagesize;
57	# else	66	# else
58	# define BOOT_PAGESIZE	67	# define BOOT_PAGESIZE (void)0
59	# endif	68	# endif
		69	#else
		70	# define PAGESIZE 0
		71	# define BOOT_PAGESIZE (void)0
60	#endif	72	#endif
61
62	#define SUB_INIT "Coro::State::initialize"
63		73
64	/* The next macro should declare a variable stacklevel that contains and approximation	74	/* 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	75	* to the current C stack pointer. Its property is that it changes with each call
66	* and should be unique. */	76	* and should be unique. */
		77	#define dSTACKLEVEL int stacklevel
67	#define dSTACKLEVEL void *stacklevel = &stacklevel	78	#define STACKLEVEL ((void *)&stacklevel)
68		79
69	#define IN_DESTRUCT (PL_main_cv == Nullcv)	80	#define IN_DESTRUCT (PL_main_cv == Nullcv)
70		81
71	#define labs(l) ((l) >= 0 ? (l) : -(l))	82	#if __GNUC__ >= 3
		83	# define attribute(x) __attribute__(x)
		84	#else
		85	# define attribute(x)
		86	#endif
		87
		88	#define NOINLINE attribute ((noinline))
72		89
73	#include "CoroAPI.h"	90	#include "CoroAPI.h"
		91
		92	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
74		93
75	#ifdef USE_ITHREADS	94	#ifdef USE_ITHREADS
76	static perl_mutex coro_mutex;	95	static perl_mutex coro_mutex;
77	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	96	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
78	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	97	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
…		…
84	static struct CoroAPI coroapi;	103	static struct CoroAPI coroapi;
85	static AV main_mainstack; / used to differentiate between $main and others */	104	static AV main_mainstack; / used to differentiate between $main and others */
86	static HV coro_state_stash, coro_stash;	105	static HV coro_state_stash, coro_stash;
87	static SV coro_mortal; / will be freed after next transfer */	106	static SV coro_mortal; / will be freed after next transfer */
88		107
89	/* this is actually not just the c stack but also c registers etc... */	108	/* this is a structure representing a c-level coroutine */
90	typedef struct coro_stack {	109	typedef struct coro_cctx {
91	struct coro_stack *next;	110	struct coro_cctx *next;
92		111
93	void *idle_sp;	112	/* the stack */
94	void *sptr;	113	void *sptr;
95	long ssize; /* positive == mmap, otherwise malloc */	114	long ssize; /* positive == mmap, otherwise malloc */
96		115
97	/* cpu state */	116	/* cpu state */
		117	void idle_sp; / sp of top-level transfer/schedule/cede call */
		118	JMPENV *top_env;
98	coro_context cctx;	119	coro_context cctx;
99	} coro_stack;
100		120
101	static coro_stack *main_stack;	121	#if USE_VALGRIND
		122	int valgrind_id;
		123	#endif
		124	} coro_cctx;
102		125
		126	/* this is a structure representing a perl-level coroutine */
103	struct coro {	127	struct coro {
		128	/* the c coroutine allocated to this perl coroutine, if any */
		129	coro_cctx *cctx;
		130
		131	/* data associated with this coroutine (initial args) */
		132	AV *args;
		133	int refcnt;
		134
104	/* optionally saved, might be zero */	135	/* optionally saved, might be zero */
105	AV *defav;	136	AV *defav;
106	SV *defsv;	137	SV *defsv;
107	SV *errsv;	138	SV *errsv;
108		139
109	/* saved global state not related to stacks */	140	/* saved global state not related to stacks */
110	U8 dowarn;	141	U8 dowarn;
111	I32 in_eval;	142	I32 in_eval;
112
113	/* the c stack, if any */
114	coro_stack *stack;
115		143
116	/* the stacks and related info (callchain etc..) */	144	/* the stacks and related info (callchain etc..) */
117	PERL_SI *curstackinfo;	145	PERL_SI *curstackinfo;
118	AV *curstack;	146	AV *curstack;
119	AV *mainstack;	147	AV *mainstack;
…		…
140	OP **retstack;	168	OP **retstack;
141	I32 retstack_ix;	169	I32 retstack_ix;
142	I32 retstack_max;	170	I32 retstack_max;
143	PMOP *curpm;	171	PMOP *curpm;
144	COP *curcop;	172	COP *curcop;
145	JMPENV *top_env;
146		173
147	/* coro process data */	174	/* coro process data */
148	int prio;	175	int prio;
149
150	/* data associated with this coroutine (initial args) */
151	AV *args;
152	int refcnt;
153	};	176	};
154		177
155	typedef struct coro *Coro__State;	178	typedef struct coro *Coro__State;
156	typedef struct coro *Coro__State_or_hashref;	179	typedef struct coro *Coro__State_or_hashref;
157		180
158	static AV *	181	static AV *
159	coro_clone_padlist (pTHX_ CV *cv)	182	coro_clone_padlist (CV *cv)
160	{	183	{
161	AV *padlist = CvPADLIST (cv);	184	AV *padlist = CvPADLIST (cv);
162	AV newpadlist, newpad;	185	AV newpadlist, newpad;
163		186
164	newpadlist = newAV ();	187	newpadlist = newAV ();
165	AvREAL_off (newpadlist);	188	AvREAL_off (newpadlist);
166	#if PERL_VERSION < 9	189	#if PERL_VERSION_ATLEAST (5,9,0)
		190	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
		191	#else
167	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	192	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
168	#else
169	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
170	#endif	193	#endif
171	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	194	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
172	--AvFILLp (padlist);	195	--AvFILLp (padlist);
173		196
174	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	197	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
…		…
176		199
177	return newpadlist;	200	return newpadlist;
178	}	201	}
179		202
180	static void	203	static void
181	free_padlist (pTHX_ AV *padlist)	204	free_padlist (AV *padlist)
182	{	205	{
183	/* may be during global destruction */	206	/* may be during global destruction */
184	if (SvREFCNT (padlist))	207	if (SvREFCNT (padlist))
185	{	208	{
186	I32 i = AvFILLp (padlist);	209	I32 i = AvFILLp (padlist);
…		…
207	AV *padlist;	230	AV *padlist;
208	AV av = (AV )mg->mg_obj;	231	AV av = (AV )mg->mg_obj;
209		232
210	/* casting is fun. */	233	/* casting is fun. */
211	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	234	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
212	free_padlist (aTHX_ padlist);	235	free_padlist (padlist);
213		236
214	SvREFCNT_dec (av);	237	SvREFCNT_dec (av);
215		238
216	return 0;	239	return 0;
217	}	240	}
…		…
220		243
221	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	244	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
222		245
223	/* the next two functions merely cache the padlists */	246	/* the next two functions merely cache the padlists */
224	static void	247	static void
225	get_padlist (pTHX_ CV *cv)	248	get_padlist (CV *cv)
226	{	249	{
227	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	250	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
228		251
229	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	252	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
230	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	253	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
231	else	254	else
232	{	255	{
233	#if 0	256	#if 0
234	/* this should work - but it doesn't :( */	257	/* this is probably cleaner, but also slower? */
235	CV *cp = Perl_cv_clone (aTHX_ cv);	258	CV *cp = Perl_cv_clone (cv);
236	CvPADLIST (cv) = CvPADLIST (cp);	259	CvPADLIST (cv) = CvPADLIST (cp);
237	CvPADLIST (cp) = 0;	260	CvPADLIST (cp) = 0;
238	SvREFCNT_dec (cp);	261	SvREFCNT_dec (cp);
239	#else	262	#else
240	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	263	CvPADLIST (cv) = coro_clone_padlist (cv);
241	#endif	264	#endif
242	}	265	}
243	}	266	}
244		267
245	static void	268	static void
246	put_padlist (pTHX_ CV *cv)	269	put_padlist (CV *cv)
247	{	270	{
248	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	271	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
249		272
250	if (!mg)	273	if (!mg)
251	{	274	{
…		…
259	}	282	}
260		283
261	#define SB do {	284	#define SB do {
262	#define SE } while (0)	285	#define SE } while (0)
263		286
264	#define LOAD(state) load_state(aTHX_ (state));	287	#define LOAD(state) load_state((state));
265	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	288	#define SAVE(state,flags) save_state((state),(flags));
266		289
267	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	290	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
268		291
269	static void	292	static void
270	load_state(pTHX_ Coro__State c)	293	load_state(Coro__State c)
271	{	294	{
272	PL_dowarn = c->dowarn;	295	PL_dowarn = c->dowarn;
273	PL_in_eval = c->in_eval;	296	PL_in_eval = c->in_eval;
274		297
275	PL_curstackinfo = c->curstackinfo;	298	PL_curstackinfo = c->curstackinfo;
…		…
293	PL_scopestack_ix = c->scopestack_ix;	316	PL_scopestack_ix = c->scopestack_ix;
294	PL_scopestack_max = c->scopestack_max;	317	PL_scopestack_max = c->scopestack_max;
295	PL_savestack = c->savestack;	318	PL_savestack = c->savestack;
296	PL_savestack_ix = c->savestack_ix;	319	PL_savestack_ix = c->savestack_ix;
297	PL_savestack_max = c->savestack_max;	320	PL_savestack_max = c->savestack_max;
298	#if PERL_VERSION < 9	321	#if !PERL_VERSION_ATLEAST (5,9,0)
299	PL_retstack = c->retstack;	322	PL_retstack = c->retstack;
300	PL_retstack_ix = c->retstack_ix;	323	PL_retstack_ix = c->retstack_ix;
301	PL_retstack_max = c->retstack_max;	324	PL_retstack_max = c->retstack_max;
302	#endif	325	#endif
303	PL_curpm = c->curpm;	326	PL_curpm = c->curpm;
304	PL_curcop = c->curcop;	327	PL_curcop = c->curcop;
305	PL_top_env = c->top_env;
306		328
307	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	329	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
308	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	330	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
309	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	331	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
310		332
…		…
317	{	339	{
318	AV padlist = (AV )POPs;	340	AV padlist = (AV )POPs;
319		341
320	if (padlist)	342	if (padlist)
321	{	343	{
322	put_padlist (aTHX_ cv); /* mark this padlist as available */	344	put_padlist (cv); /* mark this padlist as available */
323	CvPADLIST(cv) = padlist;	345	CvPADLIST(cv) = padlist;
324	}	346	}
325		347
326	++CvDEPTH(cv);	348	++CvDEPTH(cv);
327	}	349	}
…		…
329	PUTBACK;	351	PUTBACK;
330	}	352	}
331	}	353	}
332		354
333	static void	355	static void
334	save_state(pTHX_ Coro__State c, int flags)	356	save_state(Coro__State c, int flags)
335	{	357	{
336	{	358	{
337	dSP;	359	dSP;
338	I32 cxix = cxstack_ix;	360	I32 cxix = cxstack_ix;
339	PERL_CONTEXT *ccstk = cxstack;	361	PERL_CONTEXT *ccstk = cxstack;
…		…
367	}	389	}
368		390
369	PUSHs ((SV *)CvPADLIST(cv));	391	PUSHs ((SV *)CvPADLIST(cv));
370	PUSHs ((SV *)cv);	392	PUSHs ((SV *)cv);
371		393
372	get_padlist (aTHX_ cv);	394	get_padlist (cv);
373	}	395	}
374	}	396	}
375	#ifdef CXt_FORMAT	397	#ifdef CXt_FORMAT
376	else if (CxTYPE(cx) == CXt_FORMAT)	398	else if (CxTYPE(cx) == CXt_FORMAT)
377	{	399	{
…		…
421	c->scopestack_ix = PL_scopestack_ix;	443	c->scopestack_ix = PL_scopestack_ix;
422	c->scopestack_max = PL_scopestack_max;	444	c->scopestack_max = PL_scopestack_max;
423	c->savestack = PL_savestack;	445	c->savestack = PL_savestack;
424	c->savestack_ix = PL_savestack_ix;	446	c->savestack_ix = PL_savestack_ix;
425	c->savestack_max = PL_savestack_max;	447	c->savestack_max = PL_savestack_max;
426	#if PERL_VERSION < 9	448	#if !PERL_VERSION_ATLEAST (5,9,0)
427	c->retstack = PL_retstack;	449	c->retstack = PL_retstack;
428	c->retstack_ix = PL_retstack_ix;	450	c->retstack_ix = PL_retstack_ix;
429	c->retstack_max = PL_retstack_max;	451	c->retstack_max = PL_retstack_max;
430	#endif	452	#endif
431	c->curpm = PL_curpm;	453	c->curpm = PL_curpm;
432	c->curcop = PL_curcop;	454	c->curcop = PL_curcop;
433	c->top_env = PL_top_env;
434	}	455	}
435		456
436	/*	457	/*
437	* allocate various perl stacks. This is an exact copy	458	* allocate various perl stacks. This is an exact copy
438	* of perl.c:init_stacks, except that it uses less memory	459	* of perl.c:init_stacks, except that it uses less memory
439	* on the (sometimes correct) assumption that coroutines do	460	* on the (sometimes correct) assumption that coroutines do
440	* not usually need a lot of stackspace.	461	* not usually need a lot of stackspace.
441	*/	462	*/
442	static void	463	static void
443	coro_init_stacks (pTHX)	464	coro_init_stacks ()
444	{	465	{
445	LOCK;
446
447	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	466	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
448	PL_curstackinfo->si_type = PERLSI_MAIN;	467	PL_curstackinfo->si_type = PERLSI_MAIN;
449	PL_curstack = PL_curstackinfo->si_stack;	468	PL_curstack = PL_curstackinfo->si_stack;
450	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	469	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
451		470
…		…
472		491
473	New(54,PL_savestack,96,ANY);	492	New(54,PL_savestack,96,ANY);
474	PL_savestack_ix = 0;	493	PL_savestack_ix = 0;
475	PL_savestack_max = 96;	494	PL_savestack_max = 96;
476		495
477	#if PERL_VERSION < 9	496	#if !PERL_VERSION_ATLEAST (5,9,0)
478	New(54,PL_retstack,8,OP*);	497	New(54,PL_retstack,8,OP*);
479	PL_retstack_ix = 0;	498	PL_retstack_ix = 0;
480	PL_retstack_max = 8;	499	PL_retstack_max = 8;
481	#endif	500	#endif
482
483	UNLOCK;
484	}	501	}
485		502
486	/*	503	/*
487	* destroy the stacks, the callchain etc...	504	* destroy the stacks, the callchain etc...
488	*/	505	*/
489	static void	506	static void
490	destroy_stacks(pTHX)	507	coro_destroy_stacks ()
491	{	508	{
492	if (!IN_DESTRUCT)	509	if (!IN_DESTRUCT)
493	{	510	{
494	/* is this ugly, I ask? */	511	/* is this ugly, I ask? */
495	LEAVE_SCOPE (0);	512	LEAVE_SCOPE (0);
…		…
526		543
527	Safefree (PL_tmps_stack);	544	Safefree (PL_tmps_stack);
528	Safefree (PL_markstack);	545	Safefree (PL_markstack);
529	Safefree (PL_scopestack);	546	Safefree (PL_scopestack);
530	Safefree (PL_savestack);	547	Safefree (PL_savestack);
531	#if PERL_VERSION < 9	548	#if !PERL_VERSION_ATLEAST (5,9,0)
532	Safefree (PL_retstack);	549	Safefree (PL_retstack);
533	#endif	550	#endif
534	}	551	}
535		552
536	static void	553	static void
537	setup_coro (struct coro *coro)	554	setup_coro (struct coro *coro)
538	{	555	{
539	/*	556	/*
540	* emulate part of the perl startup here.	557	* emulate part of the perl startup here.
541	*/	558	*/
542	dTHX;
543	dSP;
544	UNOP myop;
545	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
546		559
547	coro_init_stacks (aTHX);	560	coro_init_stacks ();
		561
548	/PL_curcop = 0;/	562	PL_curcop = 0;
549	/PL_in_eval = PL_in_eval;/ /* inherit */	563	PL_in_eval = 0;
		564	PL_curpm = 0;
		565
		566	{
		567	dSP;
		568	LOGOP myop;
		569
		570	/* I have no idea why this is needed, but it is */
		571	PUSHMARK (SP);
		572
550	SvREFCNT_dec (GvAV (PL_defgv));	573	SvREFCNT_dec (GvAV (PL_defgv));
551	GvAV (PL_defgv) = coro->args; coro->args = 0;	574	GvAV (PL_defgv) = coro->args; coro->args = 0;
552		575
553	SPAGAIN;
554
555	Zero (&myop, 1, UNOP);	576	Zero (&myop, 1, LOGOP);
556	myop.op_next = Nullop;	577	myop.op_next = Nullop;
557	myop.op_flags = OPf_WANT_VOID;	578	myop.op_flags = OPf_WANT_VOID;
558		579
559	PL_op = (OP *)&myop;	580	PL_op = (OP *)&myop;
560		581
561	PUSHMARK(SP);	582	PUSHMARK (SP);
562	XPUSHs (sub_init);	583	XPUSHs ((SV *)get_cv ("Coro::State::coro_init", FALSE));
563	PUTBACK;	584	PUTBACK;
564	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	585	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
565	SPAGAIN;	586	SPAGAIN;
566		587
567	ENTER; /* necessary e.g. for dounwind */	588	ENTER; /* necessary e.g. for dounwind */
		589	}
568	}	590	}
569		591
570	static void	592	static void
571	transfer_tail ()	593	free_coro_mortal ()
572	{	594	{
573	if (coro_mortal)	595	if (coro_mortal)
574	{	596	{
575	SvREFCNT_dec (coro_mortal);	597	SvREFCNT_dec (coro_mortal);
576	coro_mortal = 0;	598	coro_mortal = 0;
577	}	599	}
		600	}
578		601
		602	static void NOINLINE
		603	prepare_cctx (coro_cctx *cctx)
		604	{
		605	dSP;
		606	LOGOP myop;
		607
		608	Zero (&myop, 1, LOGOP);
		609	myop.op_next = PL_op;
		610	myop.op_flags = OPf_WANT_VOID;
		611
		612	sv_setiv (get_sv ("Coro::State::cctx", FALSE), PTR2IV (cctx));
		613
		614	PUSHMARK (SP);
		615	XPUSHs ((SV *)get_cv ("Coro::State::cctx_init", FALSE));
		616	PUTBACK;
		617	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);
		618	SPAGAIN;
		619	}
		620
		621	static void
		622	coro_run (void *arg)
		623	{
		624	/* coro_run is the alternative epilogue of transfer() */
579	UNLOCK;	625	UNLOCK;
580	}
581		626
582	static void
583	coro_run (void *arg)
584	{
585	/*	627	/*
586	* this is a _very_ stripped down perl interpreter ;)	628	* this is a _very_ stripped down perl interpreter ;)
587	*/	629	*/
588	dTHX;
589
590	transfer_tail ();
591
592	PL_top_env = &PL_start_env;	630	PL_top_env = &PL_start_env;
593	PL_restartop = PL_op->op_next;	631	/* inject call to cctx_init */
		632	prepare_cctx ((coro_cctx *)arg);
		633
594	/* somebody will hit me for both perl_run and PL_restart_top */	634	/* somebody will hit me for both perl_run and PL_restartop */
595	perl_run (aTHX_ PERL_GET_CONTEXT);	635	perl_run (PL_curinterp);
596		636
		637	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
597	abort ();	638	abort ();
598	}	639	}
599		640
600	static coro_stack *	641	static coro_cctx *
601	stack_new ()	642	cctx_new ()
602	{	643	{
603	coro_stack *stack;	644	coro_cctx *cctx;
604		645
605	New (0, stack, 1, coro_stack);	646	New (0, cctx, 1, coro_cctx);
606		647
607	#if HAVE_MMAP	648	#if HAVE_MMAP
608		649
609	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */	650	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
		651	/* mmap suppsedly does allocate-on-write for us */
610	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	652	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
611		653
612	if (stack->sptr == (void *)-1)	654	if (cctx->sptr == (void *)-1)
613	{	655	{
614	fprintf (stderr, "FATAL: unable to mmap stack for coroutine\n");	656	perror ("FATAL: unable to mmap stack for coroutine");
615	_exit (EXIT_FAILURE);	657	_exit (EXIT_FAILURE);
616	}	658	}
617		659
		660	# if STACKGUARD
618	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	661	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		662	# endif
619		663
620	#else	664	#else
621		665
622	stack->ssize = STACKSIZE * (long)sizeof (long);	666	cctx->ssize = STACKSIZE * (long)sizeof (long);
623	New (0, stack->sptr, STACKSIZE, long);	667	New (0, cctx->sptr, STACKSIZE, long);
624		668
625	if (!stack->sptr)	669	if (!cctx->sptr)
626	{	670	{
627	fprintf (stderr, "FATAL: unable to malloc stack for coroutine\n");	671	perror ("FATAL: unable to malloc stack for coroutine");
628	_exit (EXIT_FAILURE);	672	_exit (EXIT_FAILURE);
629	}	673	}
630		674
631	#endif	675	#endif
632		676
		677	#if USE_VALGRIND
		678	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
		679	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
		680	cctx->ssize + (char *)cctx->sptr
		681	);
		682	#endif
		683
633	coro_create (&stack->cctx, coro_run, 0, stack->sptr, stack->ssize);	684	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
634		685
635	return stack;	686	return cctx;
636	}	687	}
637		688
638	static void	689	static void
639	stack_free (coro_stack *stack)	690	cctx_free (coro_cctx *cctx)
640	{	691	{
641	if (!stack \|\| stack == main_stack)	692	if (!cctx)
642	return;	693	return;
643		694
		695	#if USE_VALGRIND
		696	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
		697	#endif
		698
644	#if HAVE_MMAP	699	#if HAVE_MMAP
645	munmap (stack->sptr, stack->ssize);	700	munmap (cctx->sptr, cctx->ssize);
646	#else	701	#else
647	Safefree (stack->sptr);	702	Safefree (cctx->sptr);
648	#endif	703	#endif
649		704
650	Safefree (stack);	705	Safefree (cctx);
651	}	706	}
652		707
653	static coro_stack *stack_first;	708	static coro_cctx *cctx_first;
		709	static int cctx_count, cctx_idle;
654		710
655	static void	711	static coro_cctx *
656	stack_get (struct coro *coro)	712	cctx_get ()
657	{	713	{
		714	coro_cctx *cctx;
		715
658	if (stack_first)	716	if (cctx_first)
659	{	717	{
660	coro->stack = stack_first;	718	--cctx_idle;
661	stack_first = stack_first->next;	719	cctx = cctx_first;
		720	cctx_first = cctx->next;
662	}	721	}
663	else	722	else
664	coro->stack = stack_new ();	723	{
665	}	724	++cctx_count;
		725	cctx = cctx_new ();
		726	PL_op = PL_op->op_next;
		727	}
666		728
		729	return cctx;
		730	}
		731
667	static void	732	static void
668	stack_put (coro_stack *stack)	733	cctx_put (coro_cctx *cctx)
669	{	734	{
670	stack->next = stack_first;	735	++cctx_idle;
671	stack_first = stack;	736	cctx->next = cctx_first;
		737	cctx_first = cctx;
672	}	738	}
673		739
674	/* never call directly, always through the coro_state_transfer global variable */	740	/* never call directly, always through the coro_state_transfer global variable */
675	static void	741	static void NOINLINE
676	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)	742	transfer (struct coro prev, struct coro next, int flags)
677	{	743	{
678	dSTACKLEVEL;	744	dSTACKLEVEL;
679		745
680	/* sometimes transfer is only called to set idle_sp */	746	/* sometimes transfer is only called to set idle_sp */
681	if (!prev->stack->idle_sp)	747	if (flags == TRANSFER_SET_STACKLEVEL)
682	prev->stack->idle_sp = stacklevel;	748	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
683
684	LOCK;
685
686	if (prev != next)	749	else if (prev != next)
687	{	750	{
688	coro_stack *prev_stack = prev->stack;	751	coro_cctx *prev__cctx;
689		752
690	/* possibly "free" the stack */	753	LOCK;
691	if (prev_stack->idle_sp == stacklevel)	754
		755	if (next->mainstack)
692	{	756	{
693	stack_put (prev_stack);	757	/* coroutine already started */
694	prev->stack = 0;	758	SAVE (prev, flags);
		759	LOAD (next);
695	}	760	}
696		761	else
697	if (!next->mainstack)
698	{	762	{
		763	/* need to start coroutine */
699	/* first get rid of the old state */	764	/* first get rid of the old state */
700	SAVE (prev, -1);	765	SAVE (prev, -1);
701	/* setup coroutine call */	766	/* setup coroutine call */
702	setup_coro (next);	767	setup_coro (next);
		768	/* need a stack */
703	next->stack = 0;	769	next->cctx = 0;
704	}	770	}
705	else	771
		772	if (!prev->cctx)
		773	/* create a new empty context */
		774	Newz (0, prev->cctx, 1, coro_cctx);
		775
		776	prev__cctx = prev->cctx;
		777
		778	/* possibly "free" the cctx */
		779	if (prev__cctx->idle_sp == STACKLEVEL)
706	{	780	{
707	SAVE (prev, flags);	781	cctx_put (prev__cctx);
708	LOAD (next);	782	prev->cctx = 0;
709	}	783	}
710		784
711	if (!next->stack)	785	if (!next->cctx)
712	stack_get (next);	786	next->cctx = cctx_get ();
713		787
714	if (prev_stack != next->stack)	788	if (prev__cctx != next->cctx)
		789	{
		790	prev__cctx->top_env = PL_top_env;
		791	PL_top_env = next->cctx->top_env;
715	coro_transfer (&prev_stack->cctx, &next->stack->cctx);	792	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
		793	}
		794
		795	free_coro_mortal ();
		796
		797	UNLOCK;
716	}	798	}
717
718	transfer_tail ();
719	}	799	}
720		800
721	/* use this function pointer to call the above function */	801	struct transfer_args
722	/* this is done to increase chances of the compiler not inlining the call */	802	{
723	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;	803	struct coro prev, next;
		804	int flags;
		805	};
		806
		807	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)
724		808
725	static void	809	static void
726	coro_state_destroy (struct coro *coro)	810	coro_state_destroy (struct coro *coro)
727	{	811	{
728	if (coro->refcnt--)	812	if (coro->refcnt--)
…		…
730		814
731	if (coro->mainstack && coro->mainstack != main_mainstack)	815	if (coro->mainstack && coro->mainstack != main_mainstack)
732	{	816	{
733	struct coro temp;	817	struct coro temp;
734		818
735	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);	819	SAVE ((&temp), TRANSFER_SAVE_ALL);
736	LOAD (aTHX_ coro);	820	LOAD (coro);
737		821
738	destroy_stacks (aTHX);	822	coro_destroy_stacks ();
739		823
740	LOAD ((&temp)); /* this will get rid of defsv etc.. */	824	LOAD ((&temp)); /* this will get rid of defsv etc.. */
741		825
742	coro->mainstack = 0;	826	coro->mainstack = 0;
743	}	827	}
744		828
745	stack_free (coro->stack);	829	cctx_free (coro->cctx);
746	SvREFCNT_dec (coro->args);	830	SvREFCNT_dec (coro->args);
747	Safefree (coro);	831	Safefree (coro);
748	}	832	}
749		833
750	static int	834	static int
751	coro_state_clear (SV sv, MAGIC mg)	835	coro_state_clear (pTHX_ SV sv, MAGIC mg)
752	{	836	{
753	struct coro coro = (struct coro )mg->mg_ptr;	837	struct coro coro = (struct coro )mg->mg_ptr;
754	mg->mg_ptr = 0;	838	mg->mg_ptr = 0;
755		839
756	coro_state_destroy (coro);	840	coro_state_destroy (coro);
757		841
758	return 0;	842	return 0;
759	}	843	}
760		844
761	static int	845	static int
762	coro_state_dup (MAGIC mg, CLONE_PARAMS params)	846	coro_state_dup (pTHX_ MAGIC mg, CLONE_PARAMS params)
763	{	847	{
764	struct coro coro = (struct coro )mg->mg_ptr;	848	struct coro coro = (struct coro )mg->mg_ptr;
765		849
766	++coro->refcnt;	850	++coro->refcnt;
767		851
768	return 0;	852	return 0;
769	}	853	}
770		854
771	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };	855	static MGVTBL coro_state_vtbl = {
		856	0, 0, 0, 0,
		857	coro_state_clear,
		858	0,
		859	#ifdef MGf_DUP
		860	coro_state_dup,
		861	#else
		862	# define MGf_DUP 0
		863	#endif
		864	};
772		865
773	static struct coro *	866	static struct coro *
774	SvSTATE (SV *coro)	867	SvSTATE (SV *coro)
775	{	868	{
776	HV *stash;	869	HV *stash;
…		…
791	assert (mg->mg_type == PERL_MAGIC_ext);	884	assert (mg->mg_type == PERL_MAGIC_ext);
792	return (struct coro *)mg->mg_ptr;	885	return (struct coro *)mg->mg_ptr;
793	}	886	}
794		887
795	static void	888	static void
		889	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)
		890	{
		891	ta->prev = SvSTATE (prev);
		892	ta->next = SvSTATE (next);
		893	ta->flags = flags;
		894	}
		895
		896	static void
796	api_transfer (pTHX_ SV prev, SV next, int flags)	897	api_transfer (SV prev, SV next, int flags)
797	{	898	{
798	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	899	dTHX;
		900	struct transfer_args ta;
		901
		902	prepare_transfer (&ta, prev, next, flags);
		903	TRANSFER (ta);
799	}	904	}
800		905
801	/ Coro ******************************************************************/	906	/ Coro ******************************************************************/
802		907
803	#define PRIO_MAX 3	908	#define PRIO_MAX 3
…		…
811	static GV coro_current, coro_idle;	916	static GV coro_current, coro_idle;
812	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	917	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
813	static int coro_nready;	918	static int coro_nready;
814		919
815	static void	920	static void
816	coro_enq (pTHX_ SV *sv)	921	coro_enq (SV *sv)
817	{	922	{
818	int prio;	923	int prio;
819		924
820	if (SvTYPE (sv) != SVt_PVHV)	925	if (SvTYPE (sv) != SVt_PVHV)
821	croak ("Coro::ready tried to enqueue something that is not a coroutine");	926	croak ("Coro::ready tried to enqueue something that is not a coroutine");
…		…
825	av_push (coro_ready [prio - PRIO_MIN], sv);	930	av_push (coro_ready [prio - PRIO_MIN], sv);
826	coro_nready++;	931	coro_nready++;
827	}	932	}
828		933
829	static SV *	934	static SV *
830	coro_deq (pTHX_ int min_prio)	935	coro_deq (int min_prio)
831	{	936	{
832	int prio = PRIO_MAX - PRIO_MIN;	937	int prio = PRIO_MAX - PRIO_MIN;
833		938
834	min_prio -= PRIO_MIN;	939	min_prio -= PRIO_MIN;
835	if (min_prio < 0)	940	if (min_prio < 0)
…		…
852		957
853	if (SvROK (coro))	958	if (SvROK (coro))
854	coro = SvRV (coro);	959	coro = SvRV (coro);
855		960
856	LOCK;	961	LOCK;
857	coro_enq (aTHX_ SvREFCNT_inc (coro));	962	coro_enq (SvREFCNT_inc (coro));
858	UNLOCK;	963	UNLOCK;
859	}	964	}
860		965
861	static void	966	static void
862	api_schedule (void)	967	prepare_schedule (struct transfer_args *ta)
863	{	968	{
864	dTHX;
865
866	SV prev, next;	969	SV current, prev, *next;
		970
867	SV *current = GvSV (coro_current);	971	current = GvSV (coro_current);
868		972
869	for (;;)	973	for (;;)
870	{	974	{
871	LOCK;	975	LOCK;
872
873	next = coro_deq (aTHX_ PRIO_MIN);	976	next = coro_deq (PRIO_MIN);
		977	UNLOCK;
874		978
875	if (next)	979	if (next)
876	break;	980	break;
877
878	UNLOCK;
879		981
880	{	982	{
881	dSP;	983	dSP;
882		984
883	ENTER;	985	ENTER;
…		…
894		996
895	prev = SvRV (current);	997	prev = SvRV (current);
896	SvRV (current) = next;	998	SvRV (current) = next;
897		999
898	/* free this only after the transfer */	1000	/* free this only after the transfer */
		1001	LOCK;
		1002	free_coro_mortal ();
		1003	UNLOCK;
899	coro_mortal = prev;	1004	coro_mortal = prev;
900		1005
		1006	ta->prev = SvSTATE (prev);
		1007	ta->next = SvSTATE (next);
		1008	ta->flags = TRANSFER_SAVE_ALL;
		1009	}
		1010
		1011	static void
		1012	prepare_cede (struct transfer_args *ta)
		1013	{
		1014	LOCK;
		1015	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
901	UNLOCK;	1016	UNLOCK;
902		1017
903	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), TRANSFER_SAVE_ALL);	1018	prepare_schedule (ta);
904	}	1019	}
905		1020
906	static int coro_cede_self;	1021	static void
		1022	api_schedule (void)
		1023	{
		1024	dTHX;
		1025	struct transfer_args ta;
		1026
		1027	prepare_schedule (&ta);
		1028	TRANSFER (ta);
		1029	}
907		1030
908	static void	1031	static void
909	api_cede (void)	1032	api_cede (void)
910	{	1033	{
911	dTHX;	1034	dTHX;
912	SV *current = SvREFCNT_inc (SvRV (GvSV (coro_current)));	1035	struct transfer_args ta;
913		1036
914	LOCK;	1037	prepare_cede (&ta);
915		1038	TRANSFER (ta);
916	if (coro_cede_self)
917	{
918	AV *runqueue = coro_ready [PRIO_MAX - PRIO_MIN];
919	av_unshift (runqueue, 1);
920	av_store (runqueue, 0, current);
921	coro_nready++;
922	coro_cede_self = 0;
923	}
924	else
925	coro_enq (aTHX_ current);
926
927	UNLOCK;
928
929	api_schedule ();
930	}	1039	}
931		1040
932	MODULE = Coro::State PACKAGE = Coro::State	1041	MODULE = Coro::State PACKAGE = Coro::State
933		1042
934	PROTOTYPES: DISABLE	1043	PROTOTYPES: DISABLE
…		…
949	main_mainstack = PL_mainstack;	1058	main_mainstack = PL_mainstack;
950		1059
951	coroapi.ver = CORO_API_VERSION;	1060	coroapi.ver = CORO_API_VERSION;
952	coroapi.transfer = api_transfer;	1061	coroapi.transfer = api_transfer;
953		1062
954	Newz (0, main_stack, 1, coro_stack);
955	main_stack->idle_sp = (void *)-1;
956
957	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1063	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
958	}	1064	}
959		1065
960	SV *	1066	SV *
961	new (char *klass, ...)	1067	new (char *klass, ...)
…		…
970		1076
971	hv = newHV ();	1077	hv = newHV ();
972	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1078	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
973	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1079	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
974		1080
975	av_push (coro->args, newSVsv (RETVAL));
976	for (i = 1; i < items; i++)	1081	for (i = 1; i < items; i++)
977	av_push (coro->args, newSVsv (ST (i)));	1082	av_push (coro->args, newSVsv (ST (i)));
978
979	coro->stack = main_stack;
980	/coro->mainstack = 0; //actual work is done inside transfer /
981	/coro->stack = 0;/
982	}	1083	}
983	OUTPUT:	1084	OUTPUT:
984	RETVAL	1085	RETVAL
985		1086
986	void	1087	void
987	transfer (prev, next, flags)	1088	_set_stacklevel (...)
988	SV *prev	1089	ALIAS:
989	SV *next	1090	Coro::State::transfer = 1
990	int flags	1091	Coro::schedule = 2
		1092	Coro::cede = 3
		1093	Coro::Cont::yield = 4
991	CODE:	1094	CODE:
992	PUTBACK;
993	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
994	SPAGAIN;
995
996	int
997	prio (Coro::State coro, int newprio = 0)
998	ALIAS:
999	nice = 1
1000	CODE:
1001	{	1095	{
1002	RETVAL = coro->prio;	1096	struct transfer_args ta;
1003		1097
1004	if (items > 1)	1098	switch (ix)
1005	{	1099	{
		1100	case 0:
		1101	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
		1102	ta.next = 0;
		1103	ta.flags = TRANSFER_SET_STACKLEVEL;
		1104	break;
		1105
		1106	case 1:
1006	if (ix)	1107	if (items != 3)
1007	newprio += coro->prio;	1108	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);
1008		1109
1009	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1110	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));
1010	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1111	break;
1011		1112
1012	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
1013	}	1147	}
1014	}
1015		1148
1016	void	1149	TRANSFER (ta);
1017	_clear_idle_sp (Coro::State self)	1150	}
1018	CODE:
1019	self->stack->idle_sp = 0;
1020		1151
1021	void	1152	void
1022	_clone_state_from (SV dst, SV src)	1153	_clone_state_from (SV dst, SV src)
1023	CODE:	1154	CODE:
1024	{	1155	{
…		…
1035	int code	1166	int code
1036	PROTOTYPE: $	1167	PROTOTYPE: $
1037	CODE:	1168	CODE:
1038	_exit (code);	1169	_exit (code);
1039		1170
1040	MODULE = Coro::State PACKAGE = Coro::Cont	1171	int
		1172	cctx_count ()
		1173	CODE:
		1174	RETVAL = cctx_count;
		1175	OUTPUT:
		1176	RETVAL
1041		1177
1042	void	1178	int
1043	yield (...)	1179	cctx_idle ()
1044	PROTOTYPE: @	1180	CODE:
1045	CODE:	1181	RETVAL = cctx_idle;
1046	{	1182	OUTPUT:
1047	SV *yieldstack;	1183	RETVAL
1048	SV *sv;
1049	AV *defav = GvAV (PL_defgv);
1050	struct coro prev, next;
1051
1052	yieldstack = *hv_fetch (
1053	(HV *)SvRV (GvSV (coro_current)),
1054	"yieldstack", sizeof ("yieldstack") - 1,
1055	0
1056	);
1057
1058	/* set up @_ -- ugly */
1059	av_clear (defav);
1060	av_fill (defav, items - 1);
1061	while (items--)
1062	av_store (defav, items, SvREFCNT_inc (ST(items)));
1063
1064	sv = av_pop ((AV *)SvRV (yieldstack));
1065	prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
1066	next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
1067	SvREFCNT_dec (sv);
1068
1069	coro_state_transfer (aTHX_ prev, next, 0);
1070	}
1071		1184
1072	MODULE = Coro::State PACKAGE = Coro	1185	MODULE = Coro::State PACKAGE = Coro
1073		1186
1074	BOOT:	1187	BOOT:
1075	{	1188	{
…		…
1101		1214
1102	GCoroAPI = &coroapi;	1215	GCoroAPI = &coroapi;
1103	sv_setiv (sv, (IV)&coroapi);	1216	sv_setiv (sv, (IV)&coroapi);
1104	SvREADONLY_on (sv);	1217	SvREADONLY_on (sv);
1105	}	1218	}
		1219	}
		1220
		1221	int
		1222	prio (Coro::State coro, int newprio = 0)
		1223	ALIAS:
		1224	nice = 1
		1225	CODE:
		1226	{
		1227	RETVAL = coro->prio;
		1228
		1229	if (items > 1)
		1230	{
		1231	if (ix)
		1232	newprio += coro->prio;
		1233
		1234	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		1235	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		1236
		1237	coro->prio = newprio;
		1238	}
1106	}	1239	}
1107		1240
1108	void	1241	void
1109	ready (SV *self)	1242	ready (SV *self)
1110	PROTOTYPE: $	1243	PROTOTYPE: $
…		…
1117	CODE:	1250	CODE:
1118	RETVAL = coro_nready;	1251	RETVAL = coro_nready;
1119	OUTPUT:	1252	OUTPUT:
1120	RETVAL	1253	RETVAL
1121		1254
1122	void
1123	schedule (...)
1124	PROTOTYPE:
1125	CODE:
1126	api_schedule ();
1127
1128	void
1129	_set_cede_self ()
1130	CODE:
1131	coro_cede_self = 1;
1132
1133	void
1134	cede (...)
1135	PROTOTYPE:
1136	CODE:
1137	api_cede ();
1138
1139	MODULE = Coro::State PACKAGE = Coro::AIO	1255	MODULE = Coro::State PACKAGE = Coro::AIO
1140		1256
1141	SV *	1257	SV *
1142	_get_state ()	1258	_get_state ()
1143	CODE:	1259	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.89 by root, Sat Nov 25 00:40:26 2006 UTC vs. Revision 1.106 by root, Mon Nov 27 02:08:55 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.89 by root, Sat Nov 25 00:40:26 2006 UTC vs.
Revision 1.106 by root, Mon Nov 27 02:08:55 2006 UTC