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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.91 by root, Sat Nov 25 01:14:11 2006 UTC vs.
Revision 1.136 by root, Fri Jan 12 01:05:55 2007 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	#include <stdio.h>
		10	#include <errno.h>
		11	#include <assert.h>
		12
		13	#ifdef HAVE_MMAP
		14	# include <unistd.h>
		15	# include <sys/mman.h>
		16	# ifndef MAP_ANONYMOUS
		17	# ifdef MAP_ANON
		18	# define MAP_ANONYMOUS MAP_ANON
		19	# else
		20	# undef HAVE_MMAP
		21	# endif
		22	# endif
		23	# include <limits.h>
		24	# ifndef PAGESIZE
		25	# define PAGESIZE pagesize
		26	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
		27	static long pagesize;
		28	# else
		29	# define BOOT_PAGESIZE (void)0
		30	# endif
		31	#else
		32	# define PAGESIZE 0
		33	# define BOOT_PAGESIZE (void)0
		34	#endif
		35
		36	#if USE_VALGRIND
		37	# include <valgrind/valgrind.h>
		38	#endif
		39
		40	/* the maximum number of idle cctx that will be pooled */
		41	#define MAX_IDLE_CCTX 8
		42
		43	#define PERL_VERSION_ATLEAST(a,b,c) \
		44	(PERL_REVISION > (a) \
		45	\|\| (PERL_REVISION == (a) \
		46	&& (PERL_VERSION > (b) \
		47	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
		48
		49	#if !PERL_VERSION_ATLEAST (5,6,0)
12	# ifndef PL_ppaddr	50	# ifndef PL_ppaddr
13	# define PL_ppaddr ppaddr	51	# define PL_ppaddr ppaddr
14	# endif	52	# endif
15	# ifndef call_sv	53	# ifndef call_sv
16	# define call_sv perl_call_sv	54	# define call_sv perl_call_sv
27	# ifndef IS_PADCONST	65	# ifndef IS_PADCONST
28	# define IS_PADCONST(v) 0	66	# define IS_PADCONST(v) 0
29	# endif	67	# endif
30	#endif	68	#endif
31		69
32	#include <errno.h>	70	/* 5.8.7 */
		71	#ifndef SvRV_set
		72	# define SvRV_set(s,v) SvRV(s) = (v)
		73	#endif
33		74
34	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	75	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
35	# undef STACKGUARD	76	# undef STACKGUARD
36	#endif	77	#endif
37		78
38	#ifndef STACKGUARD	79	#ifndef STACKGUARD
39	# define STACKGUARD 0	80	# define STACKGUARD 0
40	#endif	81	#endif
41		82
42	#ifdef HAVE_MMAP	83	/* prefer perl internal functions over our own? */
43	# include <unistd.h>	84	#ifndef PREFER_PERL_FUNCTIONS
44	# include <sys/mman.h>	85	# define PREFER_PERL_FUNCTIONS 0
45	# ifndef MAP_ANONYMOUS
46	# ifdef MAP_ANON
47	# define MAP_ANONYMOUS MAP_ANON
48	# else
49	# undef HAVE_MMAP
50	# endif
51	# endif	86	#endif
52	# include <limits.h>
53	# ifndef PAGESIZE
54	# define PAGESIZE pagesize
55	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
56	static long pagesize;
57	# else
58	# define BOOT_PAGESIZE
59	# endif
60	#endif
61
62	#define SUB_INIT "Coro::State::initialize"
63		87
64	/* The next macro should declare a variable stacklevel that contains and approximation	88	/* 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	89	* to the current C stack pointer. Its property is that it changes with each call
66	* and should be unique. */	90	* and should be unique. */
		91	#define dSTACKLEVEL int stacklevel
67	#define dSTACKLEVEL void *stacklevel = &stacklevel	92	#define STACKLEVEL ((void *)&stacklevel)
68		93
69	#define IN_DESTRUCT (PL_main_cv == Nullcv)	94	#define IN_DESTRUCT (PL_main_cv == Nullcv)
70		95
71	#define labs(l) ((l) >= 0 ? (l) : -(l))	96	#if __GNUC__ >= 3
		97	# define attribute(x) __attribute__(x)
		98	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
		99	#else
		100	# define attribute(x)
		101	# define BARRIER
		102	#endif
		103
		104	#define NOINLINE attribute ((noinline))
72		105
73	#include "CoroAPI.h"	106	#include "CoroAPI.h"
74		107
75	#ifdef USE_ITHREADS	108	#ifdef USE_ITHREADS
76	static perl_mutex coro_mutex;	109	static perl_mutex coro_mutex;
…		…
79	#else	112	#else
80	# define LOCK (void)0	113	# define LOCK (void)0
81	# define UNLOCK (void)0	114	# define UNLOCK (void)0
82	#endif	115	#endif
83		116
		117	/* helper storage struct for Coro::AIO */
		118	struct io_state
		119	{
		120	int errorno;
		121	I32 laststype;
		122	int laststatval;
		123	Stat_t statcache;
		124	};
		125
84	static struct CoroAPI coroapi;	126	static struct CoroAPI coroapi;
85	static AV main_mainstack; / used to differentiate between $main and others */	127	static AV main_mainstack; / used to differentiate between $main and others */
86	static HV coro_state_stash, coro_stash;	128	static HV coro_state_stash, coro_stash;
87	static SV coro_mortal; / will be freed after next transfer */	129	static SV coro_mortal; / will be freed after next transfer */
88		130
89	/* this is actually not just the c stack but also c registers etc... */	131	static struct coro_cctx *cctx_first;
		132	static int cctx_count, cctx_idle;
		133
		134	/* this is a structure representing a c-level coroutine */
90	typedef struct coro_stack {	135	typedef struct coro_cctx {
91	struct coro_stack *next;	136	struct coro_cctx *next;
92		137
93	void *idle_sp;	138	/* the stack */
94	void *sptr;	139	void *sptr;
95	long ssize; /* positive == mmap, otherwise malloc */	140	long ssize; /* positive == mmap, otherwise malloc */
96		141
97	/* cpu state */	142	/* cpu state */
		143	void idle_sp; / sp of top-level transfer/schedule/cede call */
		144	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
		145	JMPENV *top_env;
98	coro_context cctx;	146	coro_context cctx;
99	} coro_stack;
100		147
101	static coro_stack *main_stack;	148	int inuse;
102		149
		150	#if USE_VALGRIND
		151	int valgrind_id;
		152	#endif
		153	} coro_cctx;
		154
		155	enum {
		156	CF_RUNNING = 0x0001, /* coroutine is running */
		157	CF_READY = 0x0002, /* coroutine is ready */
		158	CF_NEW = 0x0004, /* has never been switched to */
		159	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		160	};
		161
		162	/* this is a structure representing a perl-level coroutine */
103	struct coro {	163	struct coro {
104	/* optionally saved, might be zero */	164	/* the c coroutine allocated to this perl coroutine, if any */
105	AV *defav;	165	coro_cctx *cctx;
106	SV *defsv;
107	SV *errsv;
108
109	/* saved global state not related to stacks */
110	U8 dowarn;
111	I32 in_eval;
112
113	/* the c stack, if any */
114	coro_stack *stack;
115
116	/* the stacks and related info (callchain etc..) */
117	PERL_SI *curstackinfo;
118	AV *curstack;
119	AV *mainstack;
120	SV **stack_sp;
121	OP *op;
122	SV **curpad;
123	AV *comppad;
124	CV *compcv;
125	SV **stack_base;
126	SV **stack_max;
127	SV **tmps_stack;
128	I32 tmps_floor;
129	I32 tmps_ix;
130	I32 tmps_max;
131	I32 *markstack;
132	I32 *markstack_ptr;
133	I32 *markstack_max;
134	I32 *scopestack;
135	I32 scopestack_ix;
136	I32 scopestack_max;
137	ANY *savestack;
138	I32 savestack_ix;
139	I32 savestack_max;
140	OP **retstack;
141	I32 retstack_ix;
142	I32 retstack_max;
143	PMOP *curpm;
144	COP *curcop;
145	JMPENV *top_env;
146
147	/* coro process data */
148	int prio;
149		166
150	/* data associated with this coroutine (initial args) */	167	/* data associated with this coroutine (initial args) */
151	AV *args;	168	AV *args;
152	int refcnt;	169	int refcnt;
		170	int save; /* CORO_SAVE flags */
		171	int flags; /* CF_ flags */
		172
		173	/* optionally saved, might be zero */
		174	AV defav; / @_ */
		175	SV defsv; / $_ */
		176	SV errsv; / $@ */
		177	SV irssv; / $/ */
		178	SV irssv_sv; / real $/ cache */
		179
		180	#define VAR(name,type) type name;
		181	# include "state.h"
		182	#undef VAR
		183
		184	/* coro process data */
		185	int prio;
153	};	186	};
154		187
155	typedef struct coro *Coro__State;	188	typedef struct coro *Coro__State;
156	typedef struct coro *Coro__State_or_hashref;	189	typedef struct coro *Coro__State_or_hashref;
157		190
158	static AV *	191	static AV *
159	coro_clone_padlist (pTHX_ CV *cv)	192	coro_clone_padlist (CV *cv)
160	{	193	{
161	AV *padlist = CvPADLIST (cv);	194	AV *padlist = CvPADLIST (cv);
162	AV newpadlist, newpad;	195	AV newpadlist, newpad;
163		196
164	newpadlist = newAV ();	197	newpadlist = newAV ();
165	AvREAL_off (newpadlist);	198	AvREAL_off (newpadlist);
166	#if PERL_VERSION < 9	199	#if PERL_VERSION_ATLEAST (5,9,0)
		200	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
		201	#else
167	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	202	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
168	#else
169	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
170	#endif	203	#endif
171	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	204	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
172	--AvFILLp (padlist);	205	--AvFILLp (padlist);
173		206
174	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	207	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
…		…
176		209
177	return newpadlist;	210	return newpadlist;
178	}	211	}
179		212
180	static void	213	static void
181	free_padlist (pTHX_ AV *padlist)	214	free_padlist (AV *padlist)
182	{	215	{
183	/* may be during global destruction */	216	/* may be during global destruction */
184	if (SvREFCNT (padlist))	217	if (SvREFCNT (padlist))
185	{	218	{
186	I32 i = AvFILLp (padlist);	219	I32 i = AvFILLp (padlist);
…		…
207	AV *padlist;	240	AV *padlist;
208	AV av = (AV )mg->mg_obj;	241	AV av = (AV )mg->mg_obj;
209		242
210	/* casting is fun. */	243	/* casting is fun. */
211	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	244	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
212	free_padlist (aTHX_ padlist);	245	free_padlist (padlist);
213		246
214	SvREFCNT_dec (av);	247	SvREFCNT_dec (av);
215		248
216	return 0;	249	return 0;
217	}	250	}
218		251
219	#define PERL_MAGIC_coro PERL_MAGIC_ext	252	#define PERL_MAGIC_coro PERL_MAGIC_ext
220		253
221	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	254	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
222		255
		256	#define CORO_MAGIC(cv) \
		257	SvMAGIC (cv) \
		258	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
		259	? SvMAGIC (cv) \
		260	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
		261	: 0
		262
223	/* the next two functions merely cache the padlists */	263	/* the next two functions merely cache the padlists */
224	static void	264	static void
225	get_padlist (pTHX_ CV *cv)	265	get_padlist (CV *cv)
226	{	266	{
227	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	267	MAGIC *mg = CORO_MAGIC (cv);
		268	AV *av;
228		269
229	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	270	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
230	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	271	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
231	else	272	else
232	{	273	{
233	#if 0	274	#if PREFER_PERL_FUNCTIONS
234	/* this should work - but it doesn't :( */	275	/* this is probably cleaner, but also slower? */
235	CV *cp = Perl_cv_clone (aTHX_ cv);	276	CV *cp = Perl_cv_clone (cv);
236	CvPADLIST (cv) = CvPADLIST (cp);	277	CvPADLIST (cv) = CvPADLIST (cp);
237	CvPADLIST (cp) = 0;	278	CvPADLIST (cp) = 0;
238	SvREFCNT_dec (cp);	279	SvREFCNT_dec (cp);
239	#else	280	#else
240	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	281	CvPADLIST (cv) = coro_clone_padlist (cv);
241	#endif	282	#endif
242	}	283	}
243	}	284	}
244		285
245	static void	286	static void
246	put_padlist (pTHX_ CV *cv)	287	put_padlist (CV *cv)
247	{	288	{
248	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	289	MAGIC *mg = CORO_MAGIC (cv);
		290	AV *av;
249		291
250	if (!mg)	292	if (!mg)
251	{	293	{
252	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	294	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
253	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	295	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
254	mg->mg_virtual = &vtbl_coro;	296	mg->mg_virtual = &vtbl_coro;
255	mg->mg_obj = (SV *)newAV ();	297	mg->mg_obj = (SV *)newAV ();
256	}	298	}
257		299
258	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));	300	av = (AV *)mg->mg_obj;
		301
		302	if (AvFILLp (av) >= AvMAX (av))
		303	av_extend (av, AvMAX (av) + 1);
		304
		305	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
259	}	306	}
260		307
261	#define SB do {	308	#define SB do {
262	#define SE } while (0)	309	#define SE } while (0)
263		310
264	#define LOAD(state) load_state(aTHX_ (state));
265	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
266
267	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	311	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
268		312
269	static void	313	static void
270	load_state(pTHX_ Coro__State c)	314	load_perl (Coro__State c)
271	{	315	{
272	PL_dowarn = c->dowarn;	316	#define VAR(name,type) PL_ ## name = c->name;
273	PL_in_eval = c->in_eval;	317	# include "state.h"
274		318	#undef VAR
275	PL_curstackinfo = c->curstackinfo;
276	PL_curstack = c->curstack;
277	PL_mainstack = c->mainstack;
278	PL_stack_sp = c->stack_sp;
279	PL_op = c->op;
280	PL_curpad = c->curpad;
281	PL_comppad = c->comppad;
282	PL_compcv = c->compcv;
283	PL_stack_base = c->stack_base;
284	PL_stack_max = c->stack_max;
285	PL_tmps_stack = c->tmps_stack;
286	PL_tmps_floor = c->tmps_floor;
287	PL_tmps_ix = c->tmps_ix;
288	PL_tmps_max = c->tmps_max;
289	PL_markstack = c->markstack;
290	PL_markstack_ptr = c->markstack_ptr;
291	PL_markstack_max = c->markstack_max;
292	PL_scopestack = c->scopestack;
293	PL_scopestack_ix = c->scopestack_ix;
294	PL_scopestack_max = c->scopestack_max;
295	PL_savestack = c->savestack;
296	PL_savestack_ix = c->savestack_ix;
297	PL_savestack_max = c->savestack_max;
298	#if PERL_VERSION < 9
299	PL_retstack = c->retstack;
300	PL_retstack_ix = c->retstack_ix;
301	PL_retstack_max = c->retstack_max;
302	#endif
303	PL_curpm = c->curpm;
304	PL_curcop = c->curcop;
305	PL_top_env = c->top_env;
306		319
307	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	320	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
308	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	321	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
309	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	322	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		323	if (c->irssv)
		324	{
		325	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		326	SvREFCNT_dec (c->irssv);
		327	else
		328	{
		329	REPLACE_SV (PL_rs, c->irssv);
		330	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
		331	sv_setsv (c->irssv_sv, PL_rs);
		332	}
		333	}
310		334
311	{	335	{
312	dSP;	336	dSP;
313	CV *cv;	337	CV *cv;
314		338
315	/* now do the ugly restore mess */	339	/* now do the ugly restore mess */
316	while ((cv = (CV *)POPs))	340	while ((cv = (CV *)POPs))
317	{	341	{
318	AV padlist = (AV )POPs;
319
320	if (padlist)
321	{
322	put_padlist (aTHX_ cv); /* mark this padlist as available */	342	put_padlist (cv); /* mark this padlist as available */
323	CvPADLIST(cv) = padlist;	343	CvDEPTH (cv) = PTR2IV (POPs);
324	}	344	CvPADLIST (cv) = (AV *)POPs;
325
326	++CvDEPTH(cv);
327	}	345	}
328		346
329	PUTBACK;	347	PUTBACK;
330	}	348	}
331	}	349	}
332		350
333	static void	351	static void
334	save_state(pTHX_ Coro__State c, int flags)	352	save_perl (Coro__State c)
335	{	353	{
336	{	354	{
337	dSP;	355	dSP;
338	I32 cxix = cxstack_ix;	356	I32 cxix = cxstack_ix;
339	PERL_CONTEXT *ccstk = cxstack;	357	PERL_CONTEXT *ccstk = cxstack;
…		…
342	/*	360	/*
343	* the worst thing you can imagine happens first - we have to save	361	* the worst thing you can imagine happens first - we have to save
344	* (and reinitialize) all cv's in the whole callchain :(	362	* (and reinitialize) all cv's in the whole callchain :(
345	*/	363	*/
346		364
		365	EXTEND (SP, 3 + 1);
347	PUSHs (Nullsv);	366	PUSHs (Nullsv);
348	/* this loop was inspired by pp_caller */	367	/* this loop was inspired by pp_caller */
349	for (;;)	368	for (;;)
350	{	369	{
351	while (cxix >= 0)	370	while (cxix >= 0)
352	{	371	{
353	PERL_CONTEXT *cx = &ccstk[cxix--];	372	PERL_CONTEXT *cx = &ccstk[cxix--];
354		373
355	if (CxTYPE(cx) == CXt_SUB)	374	if (CxTYPE (cx) == CXt_SUB)
356	{	375	{
357	CV *cv = cx->blk_sub.cv;	376	CV *cv = cx->blk_sub.cv;
		377
358	if (CvDEPTH(cv))	378	if (CvDEPTH (cv))
359	{	379	{
360	EXTEND (SP, CvDEPTH(cv)*2);	380	EXTEND (SP, 3);
361
362	while (--CvDEPTH(cv))
363	{
364	/* this tells the restore code to increment CvDEPTH */
365	PUSHs (Nullsv);
366	PUSHs ((SV *)cv);
367	}
368
369	PUSHs ((SV *)CvPADLIST(cv));	381	PUSHs ((SV *)CvPADLIST (cv));
		382	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
370	PUSHs ((SV *)cv);	383	PUSHs ((SV *)cv);
371		384
		385	CvDEPTH (cv) = 0;
372	get_padlist (aTHX_ cv);	386	get_padlist (cv);
373	}	387	}
374	}	388	}
375	#ifdef CXt_FORMAT
376	else if (CxTYPE(cx) == CXt_FORMAT)
377	{
378	/* I never used formats, so how should I know how these are implemented? */
379	/* my bold guess is as a simple, plain sub... */
380	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
381	}
382	#endif
383	}	389	}
384		390
385	if (top_si->si_type == PERLSI_MAIN)	391	if (top_si->si_type == PERLSI_MAIN)
386	break;	392	break;
387		393
…		…
391	}	397	}
392		398
393	PUTBACK;	399	PUTBACK;
394	}	400	}
395		401
396	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	402	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
397	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	403	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
398	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	404	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		405	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
399		406
400	c->dowarn = PL_dowarn;	407	#define VAR(name,type)c->name = PL_ ## name;
401	c->in_eval = PL_in_eval;	408	# include "state.h"
402		409	#undef VAR
403	c->curstackinfo = PL_curstackinfo;
404	c->curstack = PL_curstack;
405	c->mainstack = PL_mainstack;
406	c->stack_sp = PL_stack_sp;
407	c->op = PL_op;
408	c->curpad = PL_curpad;
409	c->comppad = PL_comppad;
410	c->compcv = PL_compcv;
411	c->stack_base = PL_stack_base;
412	c->stack_max = PL_stack_max;
413	c->tmps_stack = PL_tmps_stack;
414	c->tmps_floor = PL_tmps_floor;
415	c->tmps_ix = PL_tmps_ix;
416	c->tmps_max = PL_tmps_max;
417	c->markstack = PL_markstack;
418	c->markstack_ptr = PL_markstack_ptr;
419	c->markstack_max = PL_markstack_max;
420	c->scopestack = PL_scopestack;
421	c->scopestack_ix = PL_scopestack_ix;
422	c->scopestack_max = PL_scopestack_max;
423	c->savestack = PL_savestack;
424	c->savestack_ix = PL_savestack_ix;
425	c->savestack_max = PL_savestack_max;
426	#if PERL_VERSION < 9
427	c->retstack = PL_retstack;
428	c->retstack_ix = PL_retstack_ix;
429	c->retstack_max = PL_retstack_max;
430	#endif
431	c->curpm = PL_curpm;
432	c->curcop = PL_curcop;
433	c->top_env = PL_top_env;
434	}	410	}
435		411
436	/*	412	/*
437	* allocate various perl stacks. This is an exact copy	413	* allocate various perl stacks. This is an exact copy
438	* of perl.c:init_stacks, except that it uses less memory	414	* of perl.c:init_stacks, except that it uses less memory
439	* on the (sometimes correct) assumption that coroutines do	415	* on the (sometimes correct) assumption that coroutines do
440	* not usually need a lot of stackspace.	416	* not usually need a lot of stackspace.
441	*/	417	*/
		418	#if PREFER_PERL_FUNCTIONS
		419	# define coro_init_stacks init_stacks
		420	#else
442	static void	421	static void
443	coro_init_stacks (pTHX)	422	coro_init_stacks ()
444	{	423	{
445	LOCK;
446
447	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	424	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
448	PL_curstackinfo->si_type = PERLSI_MAIN;	425	PL_curstackinfo->si_type = PERLSI_MAIN;
449	PL_curstack = PL_curstackinfo->si_stack;	426	PL_curstack = PL_curstackinfo->si_stack;
450	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	427	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
451		428
452	PL_stack_base = AvARRAY(PL_curstack);	429	PL_stack_base = AvARRAY(PL_curstack);
453	PL_stack_sp = PL_stack_base;	430	PL_stack_sp = PL_stack_base;
454	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	431	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
455		432
456	New(50,PL_tmps_stack,96,SV*);	433	New(50,PL_tmps_stack,128,SV*);
457	PL_tmps_floor = -1;	434	PL_tmps_floor = -1;
458	PL_tmps_ix = -1;	435	PL_tmps_ix = -1;
459	PL_tmps_max = 96;	436	PL_tmps_max = 128;
460		437
461	New(54,PL_markstack,16,I32);	438	New(54,PL_markstack,32,I32);
462	PL_markstack_ptr = PL_markstack;	439	PL_markstack_ptr = PL_markstack;
463	PL_markstack_max = PL_markstack + 16;	440	PL_markstack_max = PL_markstack + 32;
464		441
465	#ifdef SET_MARK_OFFSET	442	#ifdef SET_MARK_OFFSET
466	SET_MARK_OFFSET;	443	SET_MARK_OFFSET;
467	#endif	444	#endif
468		445
469	New(54,PL_scopestack,16,I32);	446	New(54,PL_scopestack,32,I32);
470	PL_scopestack_ix = 0;	447	PL_scopestack_ix = 0;
471	PL_scopestack_max = 16;	448	PL_scopestack_max = 32;
472		449
473	New(54,PL_savestack,96,ANY);	450	New(54,PL_savestack,64,ANY);
474	PL_savestack_ix = 0;	451	PL_savestack_ix = 0;
475	PL_savestack_max = 96;	452	PL_savestack_max = 64;
476		453
477	#if PERL_VERSION < 9	454	#if !PERL_VERSION_ATLEAST (5,9,0)
478	New(54,PL_retstack,8,OP*);	455	New(54,PL_retstack,16,OP*);
479	PL_retstack_ix = 0;	456	PL_retstack_ix = 0;
480	PL_retstack_max = 8;	457	PL_retstack_max = 16;
481	#endif	458	#endif
482
483	UNLOCK;
484	}	459	}
		460	#endif
485		461
486	/*	462	/*
487	* destroy the stacks, the callchain etc...	463	* destroy the stacks, the callchain etc...
488	*/	464	*/
489	static void	465	static void
490	destroy_stacks(pTHX)	466	coro_destroy_stacks ()
491	{	467	{
492	if (!IN_DESTRUCT)	468	if (!IN_DESTRUCT)
493	{	469	{
494	/* is this ugly, I ask? */	470	/* restore all saved variables and stuff */
495	LEAVE_SCOPE (0);	471	LEAVE_SCOPE (0);
		472	assert (PL_tmps_floor == -1);
496		473
497	/* sure it is, but more important: is it correct?? :/ */	474	/* free all temporaries */
498	FREETMPS;	475	FREETMPS;
		476	assert (PL_tmps_ix == -1);
499		477
		478	/* unwind all extra stacks */
500	/POPSTACK_TO (PL_mainstack);//D//use/	479	POPSTACK_TO (PL_mainstack);
		480
		481	/* unwind main stack */
		482	dounwind (-1);
501	}	483	}
502		484
503	while (PL_curstackinfo->si_next)	485	while (PL_curstackinfo->si_next)
504	PL_curstackinfo = PL_curstackinfo->si_next;	486	PL_curstackinfo = PL_curstackinfo->si_next;
505		487
506	while (PL_curstackinfo)	488	while (PL_curstackinfo)
507	{	489	{
508	PERL_SI *p = PL_curstackinfo->si_prev;	490	PERL_SI *p = PL_curstackinfo->si_prev;
509		491
510	{ /D//remove/
511	dSP;
512	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
513	PUTBACK; /* possibly superfluous */
514	}
515
516	if (!IN_DESTRUCT)	492	if (!IN_DESTRUCT)
517	{
518	dounwind (-1);/D//remove/
519	SvREFCNT_dec (PL_curstackinfo->si_stack);	493	SvREFCNT_dec (PL_curstackinfo->si_stack);
520	}
521		494
522	Safefree (PL_curstackinfo->si_cxstack);	495	Safefree (PL_curstackinfo->si_cxstack);
523	Safefree (PL_curstackinfo);	496	Safefree (PL_curstackinfo);
524	PL_curstackinfo = p;	497	PL_curstackinfo = p;
525	}	498	}
526		499
527	Safefree (PL_tmps_stack);	500	Safefree (PL_tmps_stack);
528	Safefree (PL_markstack);	501	Safefree (PL_markstack);
529	Safefree (PL_scopestack);	502	Safefree (PL_scopestack);
530	Safefree (PL_savestack);	503	Safefree (PL_savestack);
531	#if PERL_VERSION < 9	504	#if !PERL_VERSION_ATLEAST (5,9,0)
532	Safefree (PL_retstack);	505	Safefree (PL_retstack);
533	#endif	506	#endif
534	}	507	}
535		508
536	static void	509	static void
537	setup_coro (struct coro *coro)	510	setup_coro (struct coro *coro)
538	{	511	{
539	/*	512	/*
540	* emulate part of the perl startup here.	513	* emulate part of the perl startup here.
541	*/	514	*/
542	dTHX;	515
		516	coro_init_stacks ();
		517
		518	PL_curcop = &PL_compiling;
		519	PL_in_eval = EVAL_NULL;
		520	PL_curpm = 0;
		521	PL_localizing = 0;
		522	PL_dirty = 0;
		523	PL_restartop = 0;
		524
		525	{
		526	dSP;
		527	LOGOP myop;
		528
		529	SvREFCNT_dec (GvAV (PL_defgv));
		530	GvAV (PL_defgv) = coro->args; coro->args = 0;
		531
		532	Zero (&myop, 1, LOGOP);
		533	myop.op_next = Nullop;
		534	myop.op_flags = OPf_WANT_VOID;
		535
		536	PUSHMARK (SP);
		537	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
		538	PUTBACK;
		539	PL_op = (OP *)&myop;
		540	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
		541	SPAGAIN;
		542	}
		543
		544	ENTER; /* necessary e.g. for dounwind */
		545	}
		546
		547	static void
		548	free_coro_mortal ()
		549	{
		550	if (coro_mortal)
		551	{
		552	SvREFCNT_dec (coro_mortal);
		553	coro_mortal = 0;
		554	}
		555	}
		556
		557	/* inject a fake call to Coro::State::_cctx_init into the execution */
		558	static void NOINLINE
		559	prepare_cctx (coro_cctx *cctx)
		560	{
543	dSP;	561	dSP;
544	UNOP myop;	562	LOGOP myop;
545	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
546		563
547	coro_init_stacks (aTHX);
548	/PL_curcop = 0;/
549	/PL_in_eval = PL_in_eval;/ /* inherit */
550	SvREFCNT_dec (GvAV (PL_defgv));
551	GvAV (PL_defgv) = coro->args; coro->args = 0;
552
553	SPAGAIN;
554
555	Zero (&myop, 1, UNOP);	564	Zero (&myop, 1, LOGOP);
556	myop.op_next = Nullop;	565	myop.op_next = PL_op;
557	myop.op_flags = OPf_WANT_VOID;	566	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
558		567
		568	PUSHMARK (SP);
		569	EXTEND (SP, 2);
		570	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));
		571	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
		572	PUTBACK;
559	PL_op = (OP *)&myop;	573	PL_op = (OP *)&myop;
560
561	PUSHMARK(SP);
562	XPUSHs (sub_init);
563	PUTBACK;
564	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	574	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
565	SPAGAIN;	575	SPAGAIN;
566
567	ENTER; /* necessary e.g. for dounwind */
568	}	576	}
569		577
570	static void	578	static void
571	transfer_tail ()	579	coro_run (void *arg)
572	{	580	{
573	if (coro_mortal)	581	/* coro_run is the alternative tail of transfer(), so unlock here. */
574	{
575	SvREFCNT_dec (coro_mortal);
576	coro_mortal = 0;
577	}
578
579	UNLOCK;	582	UNLOCK;
580	}
581		583
582	static void
583	coro_run (void *arg)
584	{
585	/*	584	/*
586	* this is a _very_ stripped down perl interpreter ;)	585	* this is a _very_ stripped down perl interpreter ;)
587	*/	586	*/
588	dTHX;
589
590	transfer_tail ();
591
592	PL_top_env = &PL_start_env;	587	PL_top_env = &PL_start_env;
		588
		589	/* inject call to cctx_init */
		590	prepare_cctx ((coro_cctx *)arg);
		591
		592	/* somebody will hit me for both perl_run and PL_restartop */
593	PL_restartop = PL_op;	593	PL_restartop = PL_op;
594	/* somebody will hit me for both perl_run and PL_restart_top */	594	perl_run (PL_curinterp);
595	perl_run (aTHX_ PERL_GET_CONTEXT);
596		595
		596	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
597	abort ();	597	abort ();
598	}	598	}
599		599
600	static coro_stack *	600	static coro_cctx *
601	stack_new ()	601	cctx_new ()
602	{	602	{
603	coro_stack *stack;	603	coro_cctx *cctx;
604		604
		605	++cctx_count;
		606
605	New (0, stack, 1, coro_stack);	607	Newz (0, cctx, 1, coro_cctx);
606		608
607	#if HAVE_MMAP	609	#if HAVE_MMAP
608		610
609	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */	611	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
		612	/* mmap supposedly 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);	613	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
611		614
612	if (stack->sptr == (void *)-1)	615	if (cctx->sptr == (void *)-1)
613	{	616	{
614	fprintf (stderr, "FATAL: unable to mmap stack for coroutine\n");	617	perror ("FATAL: unable to mmap stack for coroutine");
615	_exit (EXIT_FAILURE);	618	_exit (EXIT_FAILURE);
616	}	619	}
617		620
		621	# if STACKGUARD
618	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	622	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		623	# endif
619		624
620	#else	625	#else
621		626
622	stack->ssize = STACKSIZE * (long)sizeof (long);	627	cctx->ssize = STACKSIZE * (long)sizeof (long);
623	New (0, stack->sptr, STACKSIZE, long);	628	New (0, cctx->sptr, STACKSIZE, long);
624		629
625	if (!stack->sptr)	630	if (!cctx->sptr)
626	{	631	{
627	fprintf (stderr, "FATAL: unable to malloc stack for coroutine\n");	632	perror ("FATAL: unable to malloc stack for coroutine");
628	_exit (EXIT_FAILURE);	633	_exit (EXIT_FAILURE);
629	}	634	}
630		635
631	#endif	636	#endif
632		637
		638	#if USE_VALGRIND
		639	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
		640	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
		641	cctx->ssize + (char *)cctx->sptr
		642	);
		643	#endif
		644
633	coro_create (&stack->cctx, coro_run, 0, stack->sptr, stack->ssize);	645	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
634		646
635	return stack;	647	return cctx;
636	}	648	}
637		649
638	static void	650	static void
639	stack_free (coro_stack *stack)	651	cctx_destroy (coro_cctx *cctx)
640	{	652	{
641	if (!stack \|\| stack == main_stack)	653	if (!cctx)
642	return;	654	return;
643		655
		656	--cctx_count;
		657
		658	#if USE_VALGRIND
		659	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
		660	#endif
		661
644	#if HAVE_MMAP	662	#if HAVE_MMAP
645	munmap (stack->sptr, stack->ssize);	663	munmap (cctx->sptr, cctx->ssize);
646	#else	664	#else
647	Safefree (stack->sptr);	665	Safefree (cctx->sptr);
648	#endif	666	#endif
649		667
650	Safefree (stack);	668	Safefree (cctx);
651	}	669	}
652		670
653	static coro_stack *stack_first;
654
655	static coro_stack *	671	static coro_cctx *
656	stack_get ()	672	cctx_get ()
657	{	673	{
658	coro_stack *stack;	674	coro_cctx *cctx;
659		675
660	if (stack_first)	676	if (cctx_first)
661	{	677	{
662	stack = stack_first;	678	cctx = cctx_first;
663	stack_first = stack->next;	679	cctx_first = cctx->next;
		680	--cctx_idle;
664	}	681	}
665	else	682	else
666	{	683	{
667	stack = stack_new ();	684	cctx = cctx_new ();
668	PL_op = PL_op->op_next;	685	PL_op = PL_op->op_next;
669	}	686	}
670		687
671	return stack;	688	return cctx;
672	}	689	}
673		690
674	static void	691	static void
675	stack_put (coro_stack *stack)	692	cctx_put (coro_cctx *cctx)
676	{	693	{
677	stack->next = stack_first;	694	/* free another cctx if overlimit */
678	stack_first = stack;	695	if (cctx_idle >= MAX_IDLE_CCTX)
		696	{
		697	coro_cctx *first = cctx_first;
		698	cctx_first = first->next;
		699	--cctx_idle;
		700
		701	assert (!first->inuse);
		702	cctx_destroy (first);
		703	}
		704
		705	++cctx_idle;
		706	cctx->next = cctx_first;
		707	cctx_first = cctx;
679	}	708	}
680		709
681	/* never call directly, always through the coro_state_transfer global variable */	710	/* never call directly, always through the coro_state_transfer global variable */
682	static void	711	static void NOINLINE
683	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)	712	transfer (struct coro prev, struct coro next)
684	{	713	{
685	dSTACKLEVEL;	714	dSTACKLEVEL;
686		715
687	/* sometimes transfer is only called to set idle_sp */	716	/* sometimes transfer is only called to set idle_sp */
688	if (!prev->stack->idle_sp)	717	if (!next)
689	prev->stack->idle_sp = stacklevel;	718	{
690		719	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
691	LOCK;	720	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
692		721	}
693	if (prev != next)	722	else if (prev != next)
694	{	723	{
695	coro_stack *prev_stack = prev->stack;	724	coro_cctx *prev__cctx;
696		725
697	/* possibly "free" the stack */	726	if (prev->flags & CF_NEW)
698	if (0 && prev_stack->idle_sp == stacklevel)
699	{	727	{
700	stack_put (prev_stack);	728	/* create a new empty context */
701	prev->stack = 0;	729	Newz (0, prev->cctx, 1, coro_cctx);
		730	prev->cctx->inuse = 1;
		731	prev->flags &= ~CF_NEW;
		732	prev->flags \|= CF_RUNNING;
702	}	733	}
703		734
704	if (next->mainstack)	735	/TODO: must not croak here /
		736	if (!prev->flags & CF_RUNNING)
		737	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
		738
		739	if (next->flags & CF_RUNNING)
		740	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		741
		742	if (next->flags & CF_DESTROYED)
		743	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		744
		745	prev->flags &= ~CF_RUNNING;
		746	next->flags \|= CF_RUNNING;
		747
		748	LOCK;
		749
		750	if (next->flags & CF_NEW)
705	{	751	{
706	/* coroutine already started */	752	/* need to start coroutine */
707	SAVE (prev, flags);	753	next->flags &= ~CF_NEW;
708	LOAD (next);	754	/* first get rid of the old state */
		755	save_perl (prev);
		756	/* setup coroutine call */
		757	setup_coro (next);
		758	/* need a new stack */
		759	assert (!next->cctx);
709	}	760	}
710	else	761	else
711	{	762	{
712	/* need to start coroutine */	763	/* coroutine already started */
713	/* first get rid of the old state */	764	save_perl (prev);
714	SAVE (prev, -1);	765	load_perl (next);
715	/* setup coroutine call */
716	setup_coro (next);
717	/* need to change stack from main_stack to real one */
718	next->stack = 0;
719	}	766	}
720		767
		768	prev__cctx = prev->cctx;
		769
		770	/* possibly "free" the cctx */
		771	if (prev__cctx->idle_sp == STACKLEVEL)
		772	{
		773	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
		774	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
		775
		776	prev->cctx = 0;
		777
		778	cctx_put (prev__cctx);
		779	prev__cctx->inuse = 0;
		780	}
		781
721	if (!next->stack)	782	if (!next->cctx)
722	next->stack = stack_get ();	783	{
		784	next->cctx = cctx_get ();
		785	assert (!next->cctx->inuse);
		786	next->cctx->inuse = 1;
		787	}
723		788
724	if (prev_stack != next->stack)	789	if (prev__cctx != next->cctx)
		790	{
		791	prev__cctx->top_env = PL_top_env;
		792	PL_top_env = next->cctx->top_env;
725	coro_transfer (&prev_stack->cctx, &next->stack->cctx);	793	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
726	}	794	}
727		795
728	transfer_tail ();	796	free_coro_mortal ();
		797	UNLOCK;
		798	}
729	}	799	}
730		800
731	/* use this function pointer to call the above function */	801	struct transfer_args
732	/* this is done to increase chances of the compiler not inlining the call */	802	{
733	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;	803	struct coro prev, next;
		804	};
734		805
		806	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
		807
735	static void	808	static int
736	coro_state_destroy (struct coro *coro)	809	coro_state_destroy (struct coro *coro)
737	{	810	{
738	if (coro->refcnt--)	811	if (coro->flags & CF_DESTROYED)
739	return;	812	return 0;
		813
		814	coro->flags \|= CF_DESTROYED;
740		815
741	if (coro->mainstack && coro->mainstack != main_mainstack)	816	if (coro->mainstack && coro->mainstack != main_mainstack)
742	{	817	{
		818	assert (!(coro->flags & CF_RUNNING));
		819
743	struct coro temp;	820	struct coro temp;
		821	Zero (&temp, 1, struct coro);
		822	temp.save = CORO_SAVE_ALL;
744		823
745	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);	824	if (coro->flags & CF_RUNNING)
746	LOAD (aTHX_ coro);	825	croak ("FATAL: tried to destroy currently running coroutine");
747		826
		827	save_perl (&temp);
		828	load_perl (coro);
		829
748	destroy_stacks (aTHX);	830	coro_destroy_stacks ();
749		831
750	LOAD ((&temp)); /* this will get rid of defsv etc.. */	832	load_perl (&temp); /* this will get rid of defsv etc.. */
751		833
752	coro->mainstack = 0;	834	coro->mainstack = 0;
753	}	835	}
754		836
755	stack_free (coro->stack);	837	cctx_destroy (coro->cctx);
756	SvREFCNT_dec (coro->args);	838	SvREFCNT_dec (coro->args);
757	Safefree (coro);	839
		840	return 1;
758	}	841	}
759		842
760	static int	843	static int
761	coro_state_clear (SV sv, MAGIC mg)	844	coro_state_free (pTHX_ SV sv, MAGIC mg)
762	{	845	{
763	struct coro coro = (struct coro )mg->mg_ptr;	846	struct coro coro = (struct coro )mg->mg_ptr;
764	mg->mg_ptr = 0;	847	mg->mg_ptr = 0;
765		848
		849	if (--coro->refcnt < 0)
		850	{
766	coro_state_destroy (coro);	851	coro_state_destroy (coro);
		852	Safefree (coro);
		853	}
767		854
768	return 0;	855	return 0;
769	}	856	}
770		857
771	static int	858	static int
772	coro_state_dup (MAGIC mg, CLONE_PARAMS params)	859	coro_state_dup (pTHX_ MAGIC mg, CLONE_PARAMS params)
773	{	860	{
774	struct coro coro = (struct coro )mg->mg_ptr;	861	struct coro coro = (struct coro )mg->mg_ptr;
775		862
776	++coro->refcnt;	863	++coro->refcnt;
777		864
778	return 0;	865	return 0;
779	}	866	}
780		867
781	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };	868	static MGVTBL coro_state_vtbl = {
		869	0, 0, 0, 0,
		870	coro_state_free,
		871	0,
		872	#ifdef MGf_DUP
		873	coro_state_dup,
		874	#else
		875	# define MGf_DUP 0
		876	#endif
		877	};
782		878
783	static struct coro *	879	static struct coro *
784	SvSTATE (SV *coro)	880	SvSTATE (SV *coro)
785	{	881	{
786	HV *stash;	882	HV *stash;
…		…
801	assert (mg->mg_type == PERL_MAGIC_ext);	897	assert (mg->mg_type == PERL_MAGIC_ext);
802	return (struct coro *)mg->mg_ptr;	898	return (struct coro *)mg->mg_ptr;
803	}	899	}
804		900
805	static void	901	static void
		902	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)
		903	{
		904	ta->prev = SvSTATE (prev_sv);
		905	ta->next = SvSTATE (next_sv);
		906	}
		907
		908	static void
806	api_transfer (pTHX_ SV prev, SV next, int flags)	909	api_transfer (SV prev_sv, SV next_sv)
807	{	910	{
808	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	911	struct transfer_args ta;
		912
		913	prepare_transfer (&ta, prev_sv, next_sv);
		914	TRANSFER (ta);
		915	}
		916
		917	static int
		918	api_save (SV *coro_sv, int new_save)
		919	{
		920	struct coro *coro = SvSTATE (coro_sv);
		921	int old_save = coro->save;
		922
		923	if (new_save >= 0)
		924	coro->save = new_save;
		925
		926	return old_save;
809	}	927	}
810		928
811	/ Coro ******************************************************************/	929	/ Coro ******************************************************************/
812		930
813	#define PRIO_MAX 3	931	#define PRIO_MAX 3
…		…
816	#define PRIO_LOW -1	934	#define PRIO_LOW -1
817	#define PRIO_IDLE -3	935	#define PRIO_IDLE -3
818	#define PRIO_MIN -4	936	#define PRIO_MIN -4
819		937
820	/* for Coro.pm */	938	/* for Coro.pm */
821	static GV coro_current, coro_idle;	939	static SV *coro_current;
822	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	940	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
823	static int coro_nready;	941	static int coro_nready;
824		942
825	static void	943	static void
826	coro_enq (pTHX_ SV *sv)	944	coro_enq (SV *coro_sv)
827	{	945	{
828	int prio;
829
830	if (SvTYPE (sv) != SVt_PVHV)
831	croak ("Coro::ready tried to enqueue something that is not a coroutine");
832
833	prio = SvSTATE (sv)->prio;
834
835	av_push (coro_ready [prio - PRIO_MIN], sv);	946	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
836	coro_nready++;	947	coro_nready++;
837	}	948	}
838		949
839	static SV *	950	static SV *
840	coro_deq (pTHX_ int min_prio)	951	coro_deq (int min_prio)
841	{	952	{
842	int prio = PRIO_MAX - PRIO_MIN;	953	int prio = PRIO_MAX - PRIO_MIN;
843		954
844	min_prio -= PRIO_MIN;	955	min_prio -= PRIO_MIN;
845	if (min_prio < 0)	956	if (min_prio < 0)
…		…
853	}	964	}
854		965
855	return 0;	966	return 0;
856	}	967	}
857		968
858	static void	969	static int
859	api_ready (SV *coro)	970	api_ready (SV *coro_sv)
860	{	971	{
861	dTHX;	972	struct coro *coro;
862		973
863	if (SvROK (coro))	974	if (SvROK (coro_sv))
864	coro = SvRV (coro);	975	coro_sv = SvRV (coro_sv);
		976
		977	coro = SvSTATE (coro_sv);
		978
		979	if (coro->flags & CF_READY)
		980	return 0;
		981
		982	coro->flags \|= CF_READY;
865		983
866	LOCK;	984	LOCK;
867	coro_enq (aTHX_ SvREFCNT_inc (coro));	985	coro_enq (SvREFCNT_inc (coro_sv));
868	UNLOCK;	986	UNLOCK;
		987
		988	return 1;
		989	}
		990
		991	static int
		992	api_is_ready (SV *coro_sv)
		993	{
		994	return !!(SvSTATE (coro_sv)->flags & CF_READY);
		995	}
		996
		997	static void
		998	prepare_schedule (struct transfer_args *ta)
		999	{
		1000	SV prev_sv, next_sv;
		1001
		1002	for (;;)
		1003	{
		1004	LOCK;
		1005	next_sv = coro_deq (PRIO_MIN);
		1006	UNLOCK;
		1007
		1008	/* nothing to schedule: call the idle handler */
		1009	if (!next_sv)
		1010	{
		1011	dSP;
		1012
		1013	ENTER;
		1014	SAVETMPS;
		1015
		1016	PUSHMARK (SP);
		1017	PUTBACK;
		1018	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1019
		1020	FREETMPS;
		1021	LEAVE;
		1022	continue;
		1023	}
		1024
		1025	ta->next = SvSTATE (next_sv);
		1026
		1027	/* cannot transfer to destroyed coros, skip and look for next */
		1028	if (ta->next->flags & CF_DESTROYED)
		1029	{
		1030	SvREFCNT_dec (next_sv);
		1031	continue;
		1032	}
		1033
		1034	break;
		1035	}
		1036
		1037	/* free this only after the transfer */
		1038	prev_sv = SvRV (coro_current);
		1039	SvRV_set (coro_current, next_sv);
		1040	ta->prev = SvSTATE (prev_sv);
		1041
		1042	assert (ta->next->flags & CF_READY);
		1043	ta->next->flags &= ~CF_READY;
		1044
		1045	LOCK;
		1046	free_coro_mortal ();
		1047	coro_mortal = prev_sv;
		1048	UNLOCK;
		1049	}
		1050
		1051	static void
		1052	prepare_cede (struct transfer_args *ta)
		1053	{
		1054	api_ready (coro_current);
		1055	prepare_schedule (ta);
		1056	}
		1057
		1058	static int
		1059	prepare_cede_notself (struct transfer_args *ta)
		1060	{
		1061	if (coro_nready)
		1062	{
		1063	SV *prev = SvRV (coro_current);
		1064	prepare_schedule (ta);
		1065	api_ready (prev);
		1066	return 1;
		1067	}
		1068	else
		1069	return 0;
869	}	1070	}
870		1071
871	static void	1072	static void
872	api_schedule (void)	1073	api_schedule (void)
873	{	1074	{
874	dTHX;	1075	struct transfer_args ta;
875		1076
876	SV prev, next;	1077	prepare_schedule (&ta);
877	SV *current = GvSV (coro_current);	1078	TRANSFER (ta);
878
879	for (;;)
880	{
881	LOCK;
882
883	next = coro_deq (aTHX_ PRIO_MIN);
884
885	if (next)
886	break;
887
888	UNLOCK;
889
890	{
891	dSP;
892
893	ENTER;
894	SAVETMPS;
895
896	PUSHMARK (SP);
897	PUTBACK;
898	call_sv (GvSV (coro_idle), G_DISCARD);
899
900	FREETMPS;
901	LEAVE;
902	}
903	}
904
905	prev = SvRV (current);
906	SvRV (current) = next;
907
908	/* free this only after the transfer */
909	coro_mortal = prev;
910
911	UNLOCK;
912
913	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), TRANSFER_SAVE_ALL);
914	}	1079	}
915		1080
916	static int coro_cede_self;
917
918	static void	1081	static int
919	api_cede (void)	1082	api_cede (void)
920	{	1083	{
921	dTHX;	1084	struct transfer_args ta;
922	SV *current = SvREFCNT_inc (SvRV (GvSV (coro_current)));
923		1085
924	LOCK;	1086	prepare_cede (&ta);
925		1087
926	if (coro_cede_self)	1088	if (ta.prev != ta.next)
927	{	1089	{
928	AV *runqueue = coro_ready [PRIO_MAX - PRIO_MIN];	1090	TRANSFER (ta);
929	av_unshift (runqueue, 1);	1091	return 1;
930	av_store (runqueue, 0, current);
931	coro_nready++;
932	coro_cede_self = 0;
933	}	1092	}
934	else	1093	else
935	coro_enq (aTHX_ current);	1094	return 0;
		1095	}
936		1096
937	UNLOCK;	1097	static int
		1098	api_cede_notself (void)
		1099	{
		1100	struct transfer_args ta;
938		1101
939	api_schedule ();	1102	if (prepare_cede_notself (&ta))
		1103	{
		1104	TRANSFER (ta);
		1105	return 1;
		1106	}
		1107	else
		1108	return 0;
940	}	1109	}
941		1110
942	MODULE = Coro::State PACKAGE = Coro::State	1111	MODULE = Coro::State PACKAGE = Coro::State
943		1112
944	PROTOTYPES: DISABLE	1113	PROTOTYPES: DISABLE
…		…
950	#endif	1119	#endif
951	BOOT_PAGESIZE;	1120	BOOT_PAGESIZE;
952		1121
953	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1122	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
954		1123
955	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1124	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
956	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1125	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
957	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1126	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
		1127	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1128	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
958		1129
959	main_mainstack = PL_mainstack;	1130	main_mainstack = PL_mainstack;
960		1131
961	coroapi.ver = CORO_API_VERSION;	1132	coroapi.ver = CORO_API_VERSION;
962	coroapi.transfer = api_transfer;	1133	coroapi.transfer = api_transfer;
963
964	Newz (0, main_stack, 1, coro_stack);
965	main_stack->idle_sp = (void *)-1;
966		1134
967	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1135	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
968	}	1136	}
969		1137
970	SV *	1138	SV *
…		…
975	HV *hv;	1143	HV *hv;
976	int i;	1144	int i;
977		1145
978	Newz (0, coro, 1, struct coro);	1146	Newz (0, coro, 1, struct coro);
979	coro->args = newAV ();	1147	coro->args = newAV ();
		1148	coro->save = CORO_SAVE_ALL;
		1149	coro->flags = CF_NEW;
980		1150
981	hv = newHV ();	1151	hv = newHV ();
982	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1152	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
983	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1153	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
984		1154
985	av_push (coro->args, newSVsv (RETVAL));
986	for (i = 1; i < items; i++)	1155	for (i = 1; i < items; i++)
987	av_push (coro->args, newSVsv (ST (i)));	1156	av_push (coro->args, newSVsv (ST (i)));
988
989	coro->stack = main_stack;
990	/coro->mainstack = 0; //actual work is done inside transfer /
991	/coro->stack = 0;/
992	}	1157	}
993	OUTPUT:	1158	OUTPUT:
994	RETVAL	1159	RETVAL
995		1160
		1161	int
		1162	save (SV *coro, int new_save = -1)
		1163	CODE:
		1164	RETVAL = api_save (coro, new_save);
		1165	OUTPUT:
		1166	RETVAL
		1167
996	void	1168	void
997	transfer (prev, next, flags)	1169	_set_stacklevel (...)
998	SV *prev	1170	ALIAS:
999	SV *next	1171	Coro::State::transfer = 1
1000	int flags	1172	Coro::schedule = 2
		1173	Coro::cede = 3
		1174	Coro::cede_notself = 4
1001	CODE:	1175	CODE:
1002	PUTBACK;
1003	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
1004	SPAGAIN;
1005
1006	int
1007	prio (Coro::State coro, int newprio = 0)
1008	ALIAS:
1009	nice = 1
1010	CODE:
1011	{	1176	{
1012	RETVAL = coro->prio;	1177	struct transfer_args ta;
1013		1178
1014	if (items > 1)	1179	switch (ix)
1015	{	1180	{
		1181	case 0:
		1182	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
		1183	ta.next = 0;
		1184	break;
		1185
		1186	case 1:
1016	if (ix)	1187	if (items != 2)
1017	newprio += coro->prio;	1188	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1018		1189
1019	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1190	prepare_transfer (&ta, ST (0), ST (1));
1020	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1191	break;
1021		1192
1022	coro->prio = newprio;	1193	case 2:
		1194	prepare_schedule (&ta);
		1195	break;
		1196
		1197	case 3:
		1198	prepare_cede (&ta);
		1199	break;
		1200
		1201	case 4:
		1202	if (!prepare_cede_notself (&ta))
		1203	XSRETURN_EMPTY;
		1204
		1205	break;
1023	}	1206	}
1024	}
1025		1207
1026	void	1208	BARRIER;
1027	_clear_idle_sp (Coro::State self)	1209	TRANSFER (ta);
		1210
		1211	if (GIMME_V != G_VOID && ta.next != ta.prev)
		1212	XSRETURN_YES;
		1213	}
		1214
		1215	bool
		1216	_destroy (SV *coro_sv)
1028	CODE:	1217	CODE:
1029	self->stack->idle_sp = 0;	1218	RETVAL = coro_state_destroy (SvSTATE (coro_sv));
1030		1219	OUTPUT:
1031	void	1220	RETVAL
1032	_clone_state_from (SV dst, SV src)
1033	CODE:
1034	{
1035	struct coro *coro_src = SvSTATE (src);
1036
1037	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1038
1039	++coro_src->refcnt;
1040	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1041	}
1042		1221
1043	void	1222	void
1044	_exit (code)	1223	_exit (code)
1045	int code	1224	int code
1046	PROTOTYPE: $	1225	PROTOTYPE: $
1047	CODE:	1226	CODE:
1048	_exit (code);	1227	_exit (code);
1049		1228
1050	MODULE = Coro::State PACKAGE = Coro::Cont	1229	int
		1230	cctx_count ()
		1231	CODE:
		1232	RETVAL = cctx_count;
		1233	OUTPUT:
		1234	RETVAL
1051		1235
1052	void	1236	int
1053	yield (...)	1237	cctx_idle ()
1054	PROTOTYPE: @	1238	CODE:
1055	CODE:	1239	RETVAL = cctx_idle;
1056	{	1240	OUTPUT:
1057	SV *yieldstack;	1241	RETVAL
1058	SV *sv;
1059	AV *defav = GvAV (PL_defgv);
1060	struct coro prev, next;
1061
1062	yieldstack = *hv_fetch (
1063	(HV *)SvRV (GvSV (coro_current)),
1064	"yieldstack", sizeof ("yieldstack") - 1,
1065	0
1066	);
1067
1068	/* set up @_ -- ugly */
1069	av_clear (defav);
1070	av_fill (defav, items - 1);
1071	while (items--)
1072	av_store (defav, items, SvREFCNT_inc (ST(items)));
1073
1074	sv = av_pop ((AV *)SvRV (yieldstack));
1075	prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
1076	next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
1077	SvREFCNT_dec (sv);
1078
1079	coro_state_transfer (aTHX_ prev, next, 0);
1080	}
1081		1242
1082	MODULE = Coro::State PACKAGE = Coro	1243	MODULE = Coro::State PACKAGE = Coro
1083		1244
1084	BOOT:	1245	BOOT:
1085	{	1246	{
…		…
1092	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1253	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1093	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1254	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1094	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1255	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1095	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1256	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1096		1257
1097	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1258	coro_current = get_sv ("Coro::current", FALSE);
1098	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1259	SvREADONLY_on (coro_current);
1099		1260
1100	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1261	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1101	coro_ready[i] = newAV ();	1262	coro_ready[i] = newAV ();
1102		1263
1103	{	1264	{
1104	SV *sv = perl_get_sv("Coro::API", 1);	1265	SV *sv = perl_get_sv("Coro::API", 1);
1105		1266
1106	coroapi.schedule = api_schedule;	1267	coroapi.schedule = api_schedule;
		1268	coroapi.save = api_save;
1107	coroapi.cede = api_cede;	1269	coroapi.cede = api_cede;
		1270	coroapi.cede_notself = api_cede_notself;
1108	coroapi.ready = api_ready;	1271	coroapi.ready = api_ready;
		1272	coroapi.is_ready = api_is_ready;
1109	coroapi.nready = &coro_nready;	1273	coroapi.nready = &coro_nready;
1110	coroapi.current = coro_current;	1274	coroapi.current = coro_current;
1111		1275
1112	GCoroAPI = &coroapi;	1276	GCoroAPI = &coroapi;
1113	sv_setiv (sv, (IV)&coroapi);	1277	sv_setiv (sv, (IV)&coroapi);
1114	SvREADONLY_on (sv);	1278	SvREADONLY_on (sv);
1115	}	1279	}
1116	}	1280	}
1117		1281
1118	void	1282	void
		1283	_set_current (SV *current)
		1284	PROTOTYPE: $
		1285	CODE:
		1286	SvREFCNT_dec (SvRV (coro_current));
		1287	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
		1288
		1289	int
		1290	prio (Coro::State coro, int newprio = 0)
		1291	ALIAS:
		1292	nice = 1
		1293	CODE:
		1294	{
		1295	RETVAL = coro->prio;
		1296
		1297	if (items > 1)
		1298	{
		1299	if (ix)
		1300	newprio = coro->prio - newprio;
		1301
		1302	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		1303	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		1304
		1305	coro->prio = newprio;
		1306	}
		1307	}
		1308	OUTPUT:
		1309	RETVAL
		1310
		1311	SV *
1119	ready (SV *self)	1312	ready (SV *self)
1120	PROTOTYPE: $	1313	PROTOTYPE: $
1121	CODE:	1314	CODE:
1122	api_ready (self);	1315	RETVAL = boolSV (api_ready (self));
		1316	OUTPUT:
		1317	RETVAL
		1318
		1319	SV *
		1320	is_ready (SV *self)
		1321	PROTOTYPE: $
		1322	CODE:
		1323	RETVAL = boolSV (api_is_ready (self));
		1324	OUTPUT:
		1325	RETVAL
1123		1326
1124	int	1327	int
1125	nready (...)	1328	nready (...)
1126	PROTOTYPE:	1329	PROTOTYPE:
1127	CODE:	1330	CODE:
1128	RETVAL = coro_nready;	1331	RETVAL = coro_nready;
1129	OUTPUT:	1332	OUTPUT:
1130	RETVAL	1333	RETVAL
1131		1334
1132	void
1133	schedule (...)
1134	PROTOTYPE:
1135	CODE:
1136	api_schedule ();
1137
1138	void
1139	_set_cede_self ()
1140	CODE:
1141	coro_cede_self = 1;
1142
1143	void
1144	cede (...)
1145	PROTOTYPE:
1146	CODE:
1147	api_cede ();
1148
1149	MODULE = Coro::State PACKAGE = Coro::AIO	1335	MODULE = Coro::State PACKAGE = Coro::AIO
1150		1336
1151	SV *	1337	SV *
1152	_get_state ()	1338	_get_state ()
1153	CODE:	1339	CODE:
1154	{	1340	{
1155	struct {	1341	struct io_state *data;
1156	int errorno;
1157	int laststype;
1158	int laststatval;
1159	Stat_t statcache;
1160	} data;
1161		1342
		1343	RETVAL = newSV (sizeof (struct io_state));
		1344	data = (struct io_state *)SvPVX (RETVAL);
		1345	SvCUR_set (RETVAL, sizeof (struct io_state));
		1346	SvPOK_only (RETVAL);
		1347
1162	data.errorno = errno;	1348	data->errorno = errno;
1163	data.laststype = PL_laststype;	1349	data->laststype = PL_laststype;
1164	data.laststatval = PL_laststatval;	1350	data->laststatval = PL_laststatval;
1165	data.statcache = PL_statcache;	1351	data->statcache = PL_statcache;
1166
1167	RETVAL = newSVpvn ((char *)&data, sizeof data);
1168	}	1352	}
1169	OUTPUT:	1353	OUTPUT:
1170	RETVAL	1354	RETVAL
1171		1355
1172	void	1356	void
1173	_set_state (char *data_)	1357	_set_state (char *data_)
1174	PROTOTYPE: $	1358	PROTOTYPE: $
1175	CODE:	1359	CODE:
1176	{	1360	{
1177	struct {	1361	struct io_state data = (void )data_;
1178	int errorno;
1179	int laststype;
1180	int laststatval;
1181	Stat_t statcache;
1182	} data = (void )data_;
1183		1362
1184	errno = data->errorno;	1363	errno = data->errorno;
1185	PL_laststype = data->laststype;	1364	PL_laststype = data->laststype;
1186	PL_laststatval = data->laststatval;	1365	PL_laststatval = data->laststatval;
1187	PL_statcache = data->statcache;	1366	PL_statcache = data->statcache;
1188	}	1367	}
		1368

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing Coro/Coro/State.xs (file contents): Revision 1.91 by root, Sat Nov 25 01:14:11 2006 UTC vs. Revision 1.136 by root, Fri Jan 12 01:05:55 2007 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.91 by root, Sat Nov 25 01:14:11 2006 UTC vs.
Revision 1.136 by root, Fri Jan 12 01:05:55 2007 UTC