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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.104 by root, Mon Nov 27 01:51:02 2006 UTC vs.
Revision 1.125 by root, Mon Dec 11 20:54:45 2006 UTC

…		…
7	#include "patchlevel.h"	7	#include "patchlevel.h"
8		8
9	#if USE_VALGRIND	9	#if USE_VALGRIND
10	# include <valgrind/valgrind.h>	10	# include <valgrind/valgrind.h>
11	#endif	11	#endif
		12
		13	/* the maximum number of idle cctx that will be pooled */
		14	#define MAX_IDLE_CCTX 8
12		15
13	#define PERL_VERSION_ATLEAST(a,b,c) \	16	#define PERL_VERSION_ATLEAST(a,b,c) \
14	(PERL_REVISION > (a) \	17	(PERL_REVISION > (a) \
15	\|\| (PERL_REVISION == (a) \	18	\|\| (PERL_REVISION == (a) \
16	&& (PERL_VERSION > (b) \	19	&& (PERL_VERSION > (b) \
…		…
35	# ifndef IS_PADCONST	38	# ifndef IS_PADCONST
36	# define IS_PADCONST(v) 0	39	# define IS_PADCONST(v) 0
37	# endif	40	# endif
38	#endif	41	#endif
39		42
		43	/* 5.8.7 */
		44	#ifndef SvRV_set
		45	# define SvRV_set(s,v) SvRV(s) = (v)
		46	#endif
		47
40	#include <stdio.h>	48	#include <stdio.h>
41	#include <errno.h>	49	#include <errno.h>
		50	#include <assert.h>
42		51
43	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	52	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
44	# undef STACKGUARD	53	# undef STACKGUARD
45	#endif	54	#endif
46		55
…		…
62	# ifndef PAGESIZE	71	# ifndef PAGESIZE
63	# define PAGESIZE pagesize	72	# define PAGESIZE pagesize
64	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)	73	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
65	static long pagesize;	74	static long pagesize;
66	# else	75	# else
67	# define BOOT_PAGESIZE	76	# define BOOT_PAGESIZE (void)0
68	# endif	77	# endif
		78	#else
		79	# define PAGESIZE 0
		80	# define BOOT_PAGESIZE (void)0
69	#endif	81	#endif
70		82
71	/* The next macro should declare a variable stacklevel that contains and approximation	83	/* The next macro should declare a variable stacklevel that contains and approximation
72	* to the current C stack pointer. Its property is that it changes with each call	84	* to the current C stack pointer. Its property is that it changes with each call
73	* and should be unique. */	85	* and should be unique. */
…		…
83	#endif	95	#endif
84		96
85	#define NOINLINE attribute ((noinline))	97	#define NOINLINE attribute ((noinline))
86		98
87	#include "CoroAPI.h"	99	#include "CoroAPI.h"
88
89	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
90		100
91	#ifdef USE_ITHREADS	101	#ifdef USE_ITHREADS
92	static perl_mutex coro_mutex;	102	static perl_mutex coro_mutex;
93	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	103	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
94	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	104	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
95	#else	105	#else
96	# define LOCK (void)0	106	# define LOCK (void)0
97	# define UNLOCK (void)0	107	# define UNLOCK (void)0
98	#endif	108	#endif
99		109
		110	struct io_state
		111	{
		112	int errorno;
		113	I32 laststype;
		114	int laststatval;
		115	Stat_t statcache;
		116	};
		117
100	static struct CoroAPI coroapi;	118	static struct CoroAPI coroapi;
101	static AV main_mainstack; / used to differentiate between $main and others */	119	static AV main_mainstack; / used to differentiate between $main and others */
102	static HV coro_state_stash, coro_stash;	120	static HV coro_state_stash, coro_stash;
103	static SV coro_mortal; / will be freed after next transfer */	121	static SV coro_mortal; / will be freed after next transfer */
104		122
		123	static struct coro_cctx *cctx_first;
		124	static int cctx_count, cctx_idle;
		125
105	/* this is a structure representing a c-level coroutine */	126	/* this is a structure representing a c-level coroutine */
106	typedef struct coro_stack {	127	typedef struct coro_cctx {
107	struct coro_stack *next;	128	struct coro_cctx *next;
108		129
109	/* the stack */	130	/* the stack */
110	void *sptr;	131	void *sptr;
111	long ssize; /* positive == mmap, otherwise malloc */	132	long ssize; /* positive == mmap, otherwise malloc */
112		133
113	/* cpu state */	134	/* cpu state */
114	void idle_sp; / sp of top-level transfer/schedule/cede call */	135	void idle_sp; / sp of top-level transfer/schedule/cede call */
115	JMPENV *top_env;	136	JMPENV *top_env;
116	coro_context cctx;	137	coro_context cctx;
117		138
		139	int inuse;
		140
118	#if USE_VALGRIND	141	#if USE_VALGRIND
119	int valgrind_id;	142	int valgrind_id;
120	#endif	143	#endif
121	} coro_stack;	144	} coro_cctx;
		145
		146	enum {
		147	CF_RUNNING = 0x0001, /* coroutine is running */
		148	CF_READY = 0x0002, /* coroutine is ready */
		149	CF_NEW = 0x0004, /* ahs never been switched to */
		150	};
122		151
123	/* this is a structure representing a perl-level coroutine */	152	/* this is a structure representing a perl-level coroutine */
124	struct coro {	153	struct coro {
125	/* the c coroutine allocated to this perl coroutine, if any */	154	/* the c coroutine allocated to this perl coroutine, if any */
126	coro_stack *stack;	155	coro_cctx *cctx;
127		156
128	/* data associated with this coroutine (initial args) */	157	/* data associated with this coroutine (initial args) */
129	AV *args;	158	AV *args;
130	int refcnt;	159	int refcnt;
		160	int save; /* CORO_SAVE flags */
		161	int flags; /* CF_ flags */
131		162
132	/* optionally saved, might be zero */	163	/* optionally saved, might be zero */
133	AV *defav;	164	AV defav; / @_ */
134	SV *defsv;	165	SV defsv; / $_ */
135	SV *errsv;	166	SV errsv; / $@ */
		167	SV irssv; / $/ */
		168	SV irssv_sv; / real $/ cache */
136		169
137	/* saved global state not related to stacks */	170	#define VAR(name,type) type name;
138	U8 dowarn;	171	# include "state.h"
139	I32 in_eval;	172	#undef VAR
140
141	/* the stacks and related info (callchain etc..) */
142	PERL_SI *curstackinfo;
143	AV *curstack;
144	AV *mainstack;
145	SV **stack_sp;
146	OP *op;
147	SV **curpad;
148	AV *comppad;
149	CV *compcv;
150	SV **stack_base;
151	SV **stack_max;
152	SV **tmps_stack;
153	I32 tmps_floor;
154	I32 tmps_ix;
155	I32 tmps_max;
156	I32 *markstack;
157	I32 *markstack_ptr;
158	I32 *markstack_max;
159	I32 *scopestack;
160	I32 scopestack_ix;
161	I32 scopestack_max;
162	ANY *savestack;
163	I32 savestack_ix;
164	I32 savestack_max;
165	OP **retstack;
166	I32 retstack_ix;
167	I32 retstack_max;
168	PMOP *curpm;
169	COP *curcop;
170		173
171	/* coro process data */	174	/* coro process data */
172	int prio;	175	int prio;
173	};	176	};
174		177
…		…
238		241
239	#define PERL_MAGIC_coro PERL_MAGIC_ext	242	#define PERL_MAGIC_coro PERL_MAGIC_ext
240		243
241	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	244	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
242		245
		246	#define CORO_MAGIC(cv) \
		247	SvMAGIC (cv) \
		248	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
		249	? SvMAGIC (cv) \
		250	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
		251	: 0
		252
243	/* the next two functions merely cache the padlists */	253	/* the next two functions merely cache the padlists */
244	static void	254	static void
245	get_padlist (CV *cv)	255	get_padlist (CV *cv)
246	{	256	{
247	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	257	MAGIC *mg = CORO_MAGIC (cv);
		258	AV *av;
248		259
249	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	260	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
250	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	261	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
251	else	262	else
252	{	263	{
253	#if 0	264	#if 0
254	/* this is probably cleaner, but also slower? */	265	/* this is probably cleaner, but also slower? */
255	CV *cp = Perl_cv_clone (cv);	266	CV *cp = Perl_cv_clone (cv);
…		…
263	}	274	}
264		275
265	static void	276	static void
266	put_padlist (CV *cv)	277	put_padlist (CV *cv)
267	{	278	{
268	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	279	MAGIC *mg = CORO_MAGIC (cv);
		280	AV *av;
269		281
270	if (!mg)	282	if (!mg)
271	{	283	{
272	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	284	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
273	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	285	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
274	mg->mg_virtual = &vtbl_coro;	286	mg->mg_virtual = &vtbl_coro;
275	mg->mg_obj = (SV *)newAV ();	287	mg->mg_obj = (SV *)newAV ();
276	}	288	}
277		289
278	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));	290	av = (AV *)mg->mg_obj;
		291
		292	if (AvFILLp (av) >= AvMAX (av))
		293	av_extend (av, AvMAX (av) + 1);
		294
		295	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
279	}	296	}
280		297
281	#define SB do {	298	#define SB do {
282	#define SE } while (0)	299	#define SE } while (0)
283		300
284	#define LOAD(state) load_state((state));
285	#define SAVE(state,flags) save_state((state),(flags));
286
287	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	301	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
288		302
289	static void	303	static void
290	load_state(Coro__State c)	304	load_perl (Coro__State c)
291	{	305	{
292	PL_dowarn = c->dowarn;	306	#define VAR(name,type) PL_ ## name = c->name;
293	PL_in_eval = c->in_eval;	307	# include "state.h"
294		308	#undef VAR
295	PL_curstackinfo = c->curstackinfo;
296	PL_curstack = c->curstack;
297	PL_mainstack = c->mainstack;
298	PL_stack_sp = c->stack_sp;
299	PL_op = c->op;
300	PL_curpad = c->curpad;
301	PL_comppad = c->comppad;
302	PL_compcv = c->compcv;
303	PL_stack_base = c->stack_base;
304	PL_stack_max = c->stack_max;
305	PL_tmps_stack = c->tmps_stack;
306	PL_tmps_floor = c->tmps_floor;
307	PL_tmps_ix = c->tmps_ix;
308	PL_tmps_max = c->tmps_max;
309	PL_markstack = c->markstack;
310	PL_markstack_ptr = c->markstack_ptr;
311	PL_markstack_max = c->markstack_max;
312	PL_scopestack = c->scopestack;
313	PL_scopestack_ix = c->scopestack_ix;
314	PL_scopestack_max = c->scopestack_max;
315	PL_savestack = c->savestack;
316	PL_savestack_ix = c->savestack_ix;
317	PL_savestack_max = c->savestack_max;
318	#if !PERL_VERSION_ATLEAST (5,9,0)
319	PL_retstack = c->retstack;
320	PL_retstack_ix = c->retstack_ix;
321	PL_retstack_max = c->retstack_max;
322	#endif
323	PL_curpm = c->curpm;
324	PL_curcop = c->curcop;
325		309
326	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	310	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
327	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	311	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
328	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	312	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		313	if (c->irssv)
		314	{
		315	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		316	SvREFCNT_dec (c->irssv);
		317	else
		318	{
		319	REPLACE_SV (PL_rs, c->irssv);
		320	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
		321	sv_setsv (c->irssv_sv, PL_rs);
		322	}
		323	}
329		324
330	{	325	{
331	dSP;	326	dSP;
332	CV *cv;	327	CV *cv;
333		328
334	/* now do the ugly restore mess */	329	/* now do the ugly restore mess */
335	while ((cv = (CV *)POPs))	330	while ((cv = (CV *)POPs))
336	{	331	{
337	AV padlist = (AV )POPs;
338
339	if (padlist)
340	{
341	put_padlist (cv); /* mark this padlist as available */	332	put_padlist (cv); /* mark this padlist as available */
342	CvPADLIST(cv) = padlist;	333	CvDEPTH (cv) = PTR2IV (POPs);
343	}	334	CvPADLIST (cv) = (AV *)POPs;
344
345	++CvDEPTH(cv);
346	}	335	}
347		336
348	PUTBACK;	337	PUTBACK;
349	}	338	}
350	}	339	}
351		340
352	static void	341	static void
353	save_state(Coro__State c, int flags)	342	save_perl (Coro__State c)
354	{	343	{
355	{	344	{
356	dSP;	345	dSP;
357	I32 cxix = cxstack_ix;	346	I32 cxix = cxstack_ix;
358	PERL_CONTEXT *ccstk = cxstack;	347	PERL_CONTEXT *ccstk = cxstack;
…		…
369	{	358	{
370	while (cxix >= 0)	359	while (cxix >= 0)
371	{	360	{
372	PERL_CONTEXT *cx = &ccstk[cxix--];	361	PERL_CONTEXT *cx = &ccstk[cxix--];
373		362
374	if (CxTYPE(cx) == CXt_SUB)	363	if (CxTYPE (cx) == CXt_SUB)
375	{	364	{
376	CV *cv = cx->blk_sub.cv;	365	CV *cv = cx->blk_sub.cv;
		366
377	if (CvDEPTH(cv))	367	if (CvDEPTH (cv))
378	{	368	{
379	EXTEND (SP, CvDEPTH(cv)*2);	369	EXTEND (SP, 3);
380		370
381	while (--CvDEPTH(cv))
382	{
383	/* this tells the restore code to increment CvDEPTH */
384	PUSHs (Nullsv);
385	PUSHs ((SV *)cv);
386	}
387
388	PUSHs ((SV *)CvPADLIST(cv));	371	PUSHs ((SV *)CvPADLIST (cv));
		372	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
389	PUSHs ((SV *)cv);	373	PUSHs ((SV *)cv);
390		374
		375	CvDEPTH (cv) = 0;
391	get_padlist (cv);	376	get_padlist (cv);
392	}	377	}
393	}	378	}
394	#ifdef CXt_FORMAT	379	#ifdef CXt_FORMAT
395	else if (CxTYPE(cx) == CXt_FORMAT)	380	else if (CxTYPE (cx) == CXt_FORMAT)
396	{	381	{
397	/* I never used formats, so how should I know how these are implemented? */	382	/* I never used formats, so how should I know how these are implemented? */
398	/* my bold guess is as a simple, plain sub... */	383	/* my bold guess is as a simple, plain sub... */
399	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	384	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
400	}	385	}
…		…
410	}	395	}
411		396
412	PUTBACK;	397	PUTBACK;
413	}	398	}
414		399
415	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	400	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
416	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	401	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
417	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	402	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		403	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
418		404
419	c->dowarn = PL_dowarn;	405	#define VAR(name,type)c->name = PL_ ## name;
420	c->in_eval = PL_in_eval;	406	# include "state.h"
421		407	#undef VAR
422	c->curstackinfo = PL_curstackinfo;
423	c->curstack = PL_curstack;
424	c->mainstack = PL_mainstack;
425	c->stack_sp = PL_stack_sp;
426	c->op = PL_op;
427	c->curpad = PL_curpad;
428	c->comppad = PL_comppad;
429	c->compcv = PL_compcv;
430	c->stack_base = PL_stack_base;
431	c->stack_max = PL_stack_max;
432	c->tmps_stack = PL_tmps_stack;
433	c->tmps_floor = PL_tmps_floor;
434	c->tmps_ix = PL_tmps_ix;
435	c->tmps_max = PL_tmps_max;
436	c->markstack = PL_markstack;
437	c->markstack_ptr = PL_markstack_ptr;
438	c->markstack_max = PL_markstack_max;
439	c->scopestack = PL_scopestack;
440	c->scopestack_ix = PL_scopestack_ix;
441	c->scopestack_max = PL_scopestack_max;
442	c->savestack = PL_savestack;
443	c->savestack_ix = PL_savestack_ix;
444	c->savestack_max = PL_savestack_max;
445	#if !PERL_VERSION_ATLEAST (5,9,0)
446	c->retstack = PL_retstack;
447	c->retstack_ix = PL_retstack_ix;
448	c->retstack_max = PL_retstack_max;
449	#endif
450	c->curpm = PL_curpm;
451	c->curcop = PL_curcop;
452	}	408	}
453		409
454	/*	410	/*
455	* allocate various perl stacks. This is an exact copy	411	* allocate various perl stacks. This is an exact copy
456	* of perl.c:init_stacks, except that it uses less memory	412	* of perl.c:init_stacks, except that it uses less memory
…		…
458	* not usually need a lot of stackspace.	414	* not usually need a lot of stackspace.
459	*/	415	*/
460	static void	416	static void
461	coro_init_stacks ()	417	coro_init_stacks ()
462	{	418	{
463	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	419	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
464	PL_curstackinfo->si_type = PERLSI_MAIN;	420	PL_curstackinfo->si_type = PERLSI_MAIN;
465	PL_curstack = PL_curstackinfo->si_stack;	421	PL_curstack = PL_curstackinfo->si_stack;
466	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	422	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
467		423
468	PL_stack_base = AvARRAY(PL_curstack);	424	PL_stack_base = AvARRAY(PL_curstack);
469	PL_stack_sp = PL_stack_base;	425	PL_stack_sp = PL_stack_base;
470	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	426	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
471		427
472	New(50,PL_tmps_stack,96,SV*);	428	New(50,PL_tmps_stack,128,SV*);
473	PL_tmps_floor = -1;	429	PL_tmps_floor = -1;
474	PL_tmps_ix = -1;	430	PL_tmps_ix = -1;
475	PL_tmps_max = 96;	431	PL_tmps_max = 128;
476		432
477	New(54,PL_markstack,16,I32);	433	New(54,PL_markstack,32,I32);
478	PL_markstack_ptr = PL_markstack;	434	PL_markstack_ptr = PL_markstack;
479	PL_markstack_max = PL_markstack + 16;	435	PL_markstack_max = PL_markstack + 32;
480		436
481	#ifdef SET_MARK_OFFSET	437	#ifdef SET_MARK_OFFSET
482	SET_MARK_OFFSET;	438	SET_MARK_OFFSET;
483	#endif	439	#endif
484		440
485	New(54,PL_scopestack,16,I32);	441	New(54,PL_scopestack,32,I32);
486	PL_scopestack_ix = 0;	442	PL_scopestack_ix = 0;
487	PL_scopestack_max = 16;	443	PL_scopestack_max = 32;
488		444
489	New(54,PL_savestack,96,ANY);	445	New(54,PL_savestack,64,ANY);
490	PL_savestack_ix = 0;	446	PL_savestack_ix = 0;
491	PL_savestack_max = 96;	447	PL_savestack_max = 64;
492		448
493	#if !PERL_VERSION_ATLEAST (5,9,0)	449	#if !PERL_VERSION_ATLEAST (5,9,0)
494	New(54,PL_retstack,8,OP*);	450	New(54,PL_retstack,16,OP*);
495	PL_retstack_ix = 0;	451	PL_retstack_ix = 0;
496	PL_retstack_max = 8;	452	PL_retstack_max = 16;
497	#endif	453	#endif
498	}	454	}
499		455
500	/*	456	/*
501	* destroy the stacks, the callchain etc...	457	* destroy the stacks, the callchain etc...
502	*/	458	*/
503	static void	459	static void
504	coro_destroy_stacks()	460	coro_destroy_stacks ()
505	{	461	{
506	if (!IN_DESTRUCT)	462	if (!IN_DESTRUCT)
507	{	463	{
508	/* is this ugly, I ask? */	464	/* is this ugly, I ask? */
509	LEAVE_SCOPE (0);	465	LEAVE_SCOPE (0);
…		…
554	* emulate part of the perl startup here.	510	* emulate part of the perl startup here.
555	*/	511	*/
556		512
557	coro_init_stacks ();	513	coro_init_stacks ();
558		514
559	PL_curcop = 0;	515	PL_curcop = &PL_compiling;
560	PL_in_eval = 0;	516	PL_in_eval = EVAL_NULL;
561	PL_curpm = 0;	517	PL_curpm = 0;
		518	PL_localizing = 0;
		519	PL_dirty = 0;
		520	PL_restartop = 0;
562		521
563	{	522	{
564	dSP;	523	dSP;
565	LOGOP myop;	524	LOGOP myop;
566		525
567	/* I have no idea why this is needed, but it is */
568	PUSHMARK (SP);
569
570	SvREFCNT_dec (GvAV (PL_defgv));	526	SvREFCNT_dec (GvAV (PL_defgv));
571	GvAV (PL_defgv) = coro->args; coro->args = 0;	527	GvAV (PL_defgv) = coro->args; coro->args = 0;
572		528
573	Zero (&myop, 1, LOGOP);	529	Zero (&myop, 1, LOGOP);
574	myop.op_next = Nullop;	530	myop.op_next = Nullop;
575	myop.op_flags = OPf_WANT_VOID;	531	myop.op_flags = OPf_WANT_VOID;
576		532
		533	PUSHMARK (SP);
		534	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
		535	PUTBACK;
577	PL_op = (OP *)&myop;	536	PL_op = (OP *)&myop;
578
579	PUSHMARK (SP);
580	XPUSHs ((SV *)get_cv ("Coro::State::coro_init", FALSE));
581	PUTBACK;
582	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	537	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
583	SPAGAIN;	538	SPAGAIN;
584
585	ENTER; /* necessary e.g. for dounwind */
586	}	539	}
		540
		541	ENTER; /* necessary e.g. for dounwind */
587	}	542	}
588		543
589	static void	544	static void
590	free_coro_mortal ()	545	free_coro_mortal ()
591	{	546	{
…		…
594	SvREFCNT_dec (coro_mortal);	549	SvREFCNT_dec (coro_mortal);
595	coro_mortal = 0;	550	coro_mortal = 0;
596	}	551	}
597	}	552	}
598		553
		554	/* inject a fake call to Coro::State::_cctx_init into the execution */
599	static void NOINLINE	555	static void NOINLINE
600	prepare_cctx (coro_stack *cctx)	556	prepare_cctx (coro_cctx *cctx)
601	{	557	{
602	dSP;	558	dSP;
603	LOGOP myop;	559	LOGOP myop;
604		560
605	Zero (&myop, 1, LOGOP);	561	Zero (&myop, 1, LOGOP);
606	myop.op_next = PL_op;	562	myop.op_next = PL_op;
607	myop.op_flags = OPf_WANT_VOID;	563	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
608
609	sv_setiv (get_sv ("Coro::State::cctx_stack", FALSE), PTR2IV (cctx));
610		564
611	PUSHMARK (SP);	565	PUSHMARK (SP);
		566	EXTEND (SP, 2);
		567	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));
612	XPUSHs ((SV *)get_cv ("Coro::State::cctx_init", FALSE));	568	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
613	PUTBACK;	569	PUTBACK;
		570	PL_op = (OP *)&myop;
614	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);	571	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
615	SPAGAIN;	572	SPAGAIN;
616	}	573	}
617		574
618	static void	575	static void
619	coro_run (void *arg)	576	coro_run (void *arg)
620	{	577	{
621	/* coro_run is the alternative epilogue of transfer() */	578	/* coro_run is the alternative tail of transfer(), so unlock here. */
622	UNLOCK;	579	UNLOCK;
623		580
624	/*	581	/*
625	* this is a _very_ stripped down perl interpreter ;)	582	* this is a _very_ stripped down perl interpreter ;)
626	*/	583	*/
627	PL_top_env = &PL_start_env;	584	PL_top_env = &PL_start_env;
		585
628	/* inject call to cctx_init */	586	/* inject call to cctx_init */
629	prepare_cctx ((coro_stack *)arg);	587	prepare_cctx ((coro_cctx *)arg);
630		588
631	/* somebody will hit me for both perl_run and PL_restartop */	589	/* somebody will hit me for both perl_run and PL_restartop */
		590	PL_restartop = PL_op;
632	perl_run (PL_curinterp);	591	perl_run (PL_curinterp);
633		592
634	fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr);	593	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
635	abort ();	594	abort ();
636	}	595	}
637		596
638	static coro_stack *	597	static coro_cctx *
639	stack_new ()	598	cctx_new ()
640	{	599	{
641	coro_stack *stack;	600	coro_cctx *cctx;
642		601
		602	++cctx_count;
		603
643	New (0, stack, 1, coro_stack);	604	Newz (0, cctx, 1, coro_cctx);
644		605
645	#if HAVE_MMAP	606	#if HAVE_MMAP
646		607
647	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	608	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
648	/* mmap suppsedly does allocate-on-write for us */	609	/* mmap supposedly does allocate-on-write for us */
649	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	610	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
650		611
651	if (stack->sptr == (void *)-1)	612	if (cctx->sptr == (void *)-1)
652	{	613	{
653	perror ("FATAL: unable to mmap stack for coroutine");	614	perror ("FATAL: unable to mmap stack for coroutine");
654	_exit (EXIT_FAILURE);	615	_exit (EXIT_FAILURE);
655	}	616	}
656		617
657	# if STACKGUARD	618	# if STACKGUARD
658	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	619	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
659	# endif	620	# endif
660		621
661	#else	622	#else
662		623
663	stack->ssize = STACKSIZE * (long)sizeof (long);	624	cctx->ssize = STACKSIZE * (long)sizeof (long);
664	New (0, stack->sptr, STACKSIZE, long);	625	New (0, cctx->sptr, STACKSIZE, long);
665		626
666	if (!stack->sptr)	627	if (!cctx->sptr)
667	{	628	{
668	perror (stderr, "FATAL: unable to malloc stack for coroutine");	629	perror ("FATAL: unable to malloc stack for coroutine");
669	_exit (EXIT_FAILURE);	630	_exit (EXIT_FAILURE);
670	}	631	}
671		632
672	#endif	633	#endif
673		634
674	#if USE_VALGRIND	635	#if USE_VALGRIND
675	stack->valgrind_id = VALGRIND_STACK_REGISTER (	636	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
676	STACKGUARD * PAGESIZE + (char *)stack->sptr,	637	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
677	stack->ssize + (char *)stack->sptr	638	cctx->ssize + (char *)cctx->sptr
678	);	639	);
679	#endif	640	#endif
680		641
681	coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize);	642	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
682		643
683	return stack;	644	return cctx;
684	}	645	}
685		646
686	static void	647	static void
687	stack_free (coro_stack *stack)	648	cctx_destroy (coro_cctx *cctx)
688	{	649	{
689	if (!stack)	650	if (!cctx)
690	return;	651	return;
691		652
		653	--cctx_count;
		654
692	#if USE_VALGRIND	655	#if USE_VALGRIND
693	VALGRIND_STACK_DEREGISTER (stack->valgrind_id);	656	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
694	#endif	657	#endif
695		658
696	#if HAVE_MMAP	659	#if HAVE_MMAP
697	munmap (stack->sptr, stack->ssize);	660	munmap (cctx->sptr, cctx->ssize);
698	#else	661	#else
699	Safefree (stack->sptr);	662	Safefree (cctx->sptr);
700	#endif	663	#endif
701		664
702	Safefree (stack);	665	Safefree (cctx);
703	}	666	}
704		667
705	static coro_stack *stack_first;
706	static int cctx_count, cctx_idle;
707
708	static coro_stack *	668	static coro_cctx *
709	stack_get ()	669	cctx_get ()
710	{	670	{
711	coro_stack *stack;	671	coro_cctx *cctx;
712		672
713	if (stack_first)	673	if (cctx_first)
714	{	674	{
		675	cctx = cctx_first;
		676	cctx_first = cctx->next;
715	--cctx_idle;	677	--cctx_idle;
716	stack = stack_first;
717	stack_first = stack->next;
718	}	678	}
719	else	679	else
720	{	680	{
721	++cctx_count;	681	cctx = cctx_new ();
722	stack = stack_new ();
723	PL_op = PL_op->op_next;	682	PL_op = PL_op->op_next;
724	}	683	}
725		684
726	return stack;	685	return cctx;
727	}	686	}
728		687
729	static void	688	static void
730	stack_put (coro_stack *stack)	689	cctx_put (coro_cctx *cctx)
731	{	690	{
		691	/* free another cctx if overlimit */
		692	if (cctx_idle >= MAX_IDLE_CCTX)
		693	{
		694	coro_cctx *first = cctx_first;
		695	cctx_first = first->next;
		696	--cctx_idle;
		697
		698	assert (!first->inuse);
		699	cctx_destroy (first);
		700	}
		701
732	++cctx_idle;	702	++cctx_idle;
733	stack->next = stack_first;	703	cctx->next = cctx_first;
734	stack_first = stack;	704	cctx_first = cctx;
735	}	705	}
736		706
737	/* never call directly, always through the coro_state_transfer global variable */	707	/* never call directly, always through the coro_state_transfer global variable */
738	static void NOINLINE	708	static void NOINLINE
739	transfer (struct coro prev, struct coro next, int flags)	709	transfer (struct coro prev, struct coro next)
740	{	710	{
741	dSTACKLEVEL;	711	dSTACKLEVEL;
742		712
743	/* sometimes transfer is only called to set idle_sp */	713	/* sometimes transfer is only called to set idle_sp */
744	if (flags == TRANSFER_SET_STACKLEVEL)	714	if (!next)
		715	{
745	((coro_stack *)prev)->idle_sp = STACKLEVEL;	716	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
		717	assert (((coro_cctx )prev)->top_env = PL_top_env); / just for the side effetc when assert is enabled */
		718	}
746	else if (prev != next)	719	else if (prev != next)
747	{	720	{
748	coro_stack *prev__stack;	721	coro_cctx *prev__cctx;
		722
		723	if (prev->flags & CF_NEW)
		724	{
		725	/* create a new empty context */
		726	Newz (0, prev->cctx, 1, coro_cctx);
		727	prev->cctx->inuse = 1;
		728	prev->flags &= ~CF_NEW;
		729	prev->flags \|= CF_RUNNING;
		730	}
		731
		732	/TODO: must not croak here /
		733	if (!prev->flags & CF_RUNNING)
		734	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
		735
		736	if (next->flags & CF_RUNNING)
		737	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		738
		739	prev->flags &= ~CF_RUNNING;
		740	next->flags \|= CF_RUNNING;
749		741
750	LOCK;	742	LOCK;
751		743
752	if (next->mainstack)	744	if (next->flags & CF_NEW)
753	{	745	{
754	/* coroutine already started */	746	/* need to start coroutine */
755	SAVE (prev, flags);	747	next->flags &= ~CF_NEW;
756	LOAD (next);	748	/* first get rid of the old state */
		749	save_perl (prev);
		750	/* setup coroutine call */
		751	setup_coro (next);
		752	/* need a new stack */
		753	assert (!next->cctx);
757	}	754	}
758	else	755	else
759	{	756	{
760	/* need to start coroutine */	757	/* coroutine already started */
761	/* first get rid of the old state */	758	save_perl (prev);
762	SAVE (prev, -1);	759	load_perl (next);
763	/* setup coroutine call */
764	setup_coro (next);
765	/* need a stack */
766	next->stack = 0;
767	}	760	}
768		761
769	if (!prev->stack)
770	/* create a new empty context */
771	Newz (0, prev->stack, 1, coro_stack);
772
773	prev__stack = prev->stack;	762	prev__cctx = prev->cctx;
774		763
775	/* possibly "free" the stack */	764	/* possibly "free" the cctx */
776	if (prev__stack->idle_sp == STACKLEVEL)	765	if (prev__cctx->idle_sp == STACKLEVEL)
777	{	766	{
778	stack_put (prev__stack);	767	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
		768	assert (PL_top_env == prev__cctx->top_env);
		769
779	prev->stack = 0;	770	prev->cctx = 0;
		771
		772	cctx_put (prev__cctx);
		773	prev__cctx->inuse = 0;
780	}	774	}
781		775
782	if (!next->stack)	776	if (!next->cctx)
783	next->stack = stack_get ();
784
785	if (prev__stack != next->stack)
786	{	777	{
		778	next->cctx = cctx_get ();
		779	assert (!next->cctx->inuse);
		780	next->cctx->inuse = 1;
		781	}
		782
		783	if (prev__cctx != next->cctx)
		784	{
787	prev__stack->top_env = PL_top_env;	785	prev__cctx->top_env = PL_top_env;
788	PL_top_env = next->stack->top_env;	786	PL_top_env = next->cctx->top_env;
789	coro_transfer (&prev__stack->cctx, &next->stack->cctx);	787	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
790	}	788	}
791		789
792	free_coro_mortal ();	790	free_coro_mortal ();
793		791
794	UNLOCK;	792	UNLOCK;
…		…
796	}	794	}
797		795
798	struct transfer_args	796	struct transfer_args
799	{	797	{
800	struct coro prev, next;	798	struct coro prev, next;
801	int flags;
802	};	799	};
803		800
804	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)	801	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
805		802
806	static void	803	static void
807	coro_state_destroy (struct coro *coro)	804	coro_state_destroy (struct coro *coro)
808	{	805	{
809	if (coro->refcnt--)	806	if (coro->refcnt--)
810	return;	807	return;
811		808
812	if (coro->mainstack && coro->mainstack != main_mainstack)	809	if (coro->mainstack && coro->mainstack != main_mainstack)
813	{	810	{
814	struct coro temp;	811	struct coro temp;
		812	Zero (&temp, 1, struct coro);
		813	temp.save = CORO_SAVE_ALL;
815		814
816	SAVE ((&temp), TRANSFER_SAVE_ALL);	815	if (coro->flags & CF_RUNNING)
817	LOAD (coro);	816	croak ("FATAL: tried to destroy currently running coroutine");
		817
		818	save_perl (&temp);
		819	load_perl (coro);
818		820
819	coro_destroy_stacks ();	821	coro_destroy_stacks ();
820		822
821	LOAD ((&temp)); /* this will get rid of defsv etc.. */	823	load_perl (&temp); /* this will get rid of defsv etc.. */
822		824
823	coro->mainstack = 0;	825	coro->mainstack = 0;
824	}	826	}
825		827
826	stack_free (coro->stack);	828	cctx_destroy (coro->cctx);
827	SvREFCNT_dec (coro->args);	829	SvREFCNT_dec (coro->args);
828	Safefree (coro);	830	Safefree (coro);
829	}	831	}
830		832
831	static int	833	static int
…		…
881	assert (mg->mg_type == PERL_MAGIC_ext);	883	assert (mg->mg_type == PERL_MAGIC_ext);
882	return (struct coro *)mg->mg_ptr;	884	return (struct coro *)mg->mg_ptr;
883	}	885	}
884		886
885	static void	887	static void
886	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)	888	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)
887	{	889	{
888	ta->prev = SvSTATE (prev);	890	ta->prev = SvSTATE (prev_sv);
889	ta->next = SvSTATE (next);	891	ta->next = SvSTATE (next_sv);
890	ta->flags = flags;
891	}	892	}
892		893
893	static void	894	static void
894	api_transfer (SV prev, SV next, int flags)	895	api_transfer (SV prev_sv, SV next_sv)
895	{	896	{
896	dTHX;
897	struct transfer_args ta;	897	struct transfer_args ta;
898		898
899	prepare_transfer (&ta, prev, next, flags);	899	prepare_transfer (&ta, prev_sv, next_sv);
900	TRANSFER (ta);	900	TRANSFER (ta);
		901	}
		902
		903	static int
		904	api_save (SV *coro_sv, int new_save)
		905	{
		906	struct coro *coro = SvSTATE (coro_sv);
		907	int old_save = coro->save;
		908
		909	if (new_save >= 0)
		910	coro->save = new_save;
		911
		912	return old_save;
901	}	913	}
902		914
903	/ Coro ******************************************************************/	915	/ Coro ******************************************************************/
904		916
905	#define PRIO_MAX 3	917	#define PRIO_MAX 3
…		…
908	#define PRIO_LOW -1	920	#define PRIO_LOW -1
909	#define PRIO_IDLE -3	921	#define PRIO_IDLE -3
910	#define PRIO_MIN -4	922	#define PRIO_MIN -4
911		923
912	/* for Coro.pm */	924	/* for Coro.pm */
913	static GV coro_current, coro_idle;	925	static SV *coro_current;
914	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	926	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
915	static int coro_nready;	927	static int coro_nready;
916		928
917	static void	929	static void
918	coro_enq (SV *sv)	930	coro_enq (SV *coro_sv)
919	{	931	{
920	int prio;
921
922	if (SvTYPE (sv) != SVt_PVHV)
923	croak ("Coro::ready tried to enqueue something that is not a coroutine");
924
925	prio = SvSTATE (sv)->prio;
926
927	av_push (coro_ready [prio - PRIO_MIN], sv);	932	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
928	coro_nready++;	933	coro_nready++;
929	}	934	}
930		935
931	static SV *	936	static SV *
932	coro_deq (int min_prio)	937	coro_deq (int min_prio)
…		…
945	}	950	}
946		951
947	return 0;	952	return 0;
948	}	953	}
949		954
950	static void	955	static int
951	api_ready (SV *coro)	956	api_ready (SV *coro_sv)
952	{	957	{
953	dTHX;	958	struct coro *coro;
954		959
955	if (SvROK (coro))	960	if (SvROK (coro_sv))
956	coro = SvRV (coro);	961	coro_sv = SvRV (coro_sv);
		962
		963	coro = SvSTATE (coro_sv);
		964
		965	if (coro->flags & CF_READY)
		966	return 0;
		967
		968	#if 0 /* this is actually harmless */
		969	if (coro->flags & CF_RUNNING)
		970	croak ("Coro::ready called on currently running coroutine");
		971	#endif
		972
		973	coro->flags \|= CF_READY;
957		974
958	LOCK;	975	LOCK;
959	coro_enq (SvREFCNT_inc (coro));	976	coro_enq (SvREFCNT_inc (coro_sv));
960	UNLOCK;	977	UNLOCK;
		978
		979	return 1;
		980	}
		981
		982	static int
		983	api_is_ready (SV *coro_sv)
		984	{
		985	return !!SvSTATE (coro_sv)->flags & CF_READY;
961	}	986	}
962		987
963	static void	988	static void
964	prepare_schedule (struct transfer_args *ta)	989	prepare_schedule (struct transfer_args *ta)
965	{	990	{
966	SV current, prev, *next;	991	SV prev, next;
967
968	current = GvSV (coro_current);
969		992
970	for (;;)	993	for (;;)
971	{	994	{
972	LOCK;	995	LOCK;
973	next = coro_deq (PRIO_MIN);	996	next = coro_deq (PRIO_MIN);
…		…
982	ENTER;	1005	ENTER;
983	SAVETMPS;	1006	SAVETMPS;
984		1007
985	PUSHMARK (SP);	1008	PUSHMARK (SP);
986	PUTBACK;	1009	PUTBACK;
987	call_sv (GvSV (coro_idle), G_DISCARD);	1010	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
988		1011
989	FREETMPS;	1012	FREETMPS;
990	LEAVE;	1013	LEAVE;
991	}	1014	}
992	}	1015	}
993		1016
994	prev = SvRV (current);	1017	prev = SvRV (coro_current);
995	SvRV (current) = next;	1018	SvRV_set (coro_current, next);
996		1019
997	/* free this only after the transfer */	1020	/* free this only after the transfer */
998	LOCK;	1021	LOCK;
999	free_coro_mortal ();	1022	free_coro_mortal ();
1000	UNLOCK;	1023	UNLOCK;
1001	coro_mortal = prev;	1024	coro_mortal = prev;
1002		1025
		1026	assert (!SvROK(prev));//D
		1027	assert (!SvROK(next));//D
		1028
1003	ta->prev = SvSTATE (prev);	1029	ta->prev = SvSTATE (prev);
1004	ta->next = SvSTATE (next);	1030	ta->next = SvSTATE (next);
1005	ta->flags = TRANSFER_SAVE_ALL;	1031
		1032	assert (ta->next->flags & CF_READY);
		1033	ta->next->flags &= ~CF_READY;
1006	}	1034	}
1007		1035
1008	static void	1036	static void
1009	prepare_cede (struct transfer_args *ta)	1037	prepare_cede (struct transfer_args *ta)
1010	{	1038	{
1011	LOCK;	1039	api_ready (coro_current);
1012	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
1013	UNLOCK;
1014		1040
1015	prepare_schedule (ta);	1041	prepare_schedule (ta);
1016	}	1042	}
1017		1043
1018	static void	1044	static void
1019	api_schedule (void)	1045	api_schedule (void)
1020	{	1046	{
1021	dTHX;
1022	struct transfer_args ta;	1047	struct transfer_args ta;
1023		1048
1024	prepare_schedule (&ta);	1049	prepare_schedule (&ta);
1025	TRANSFER (ta);	1050	TRANSFER (ta);
1026	}	1051	}
1027		1052
1028	static void	1053	static void
1029	api_cede (void)	1054	api_cede (void)
1030	{	1055	{
1031	dTHX;
1032	struct transfer_args ta;	1056	struct transfer_args ta;
1033		1057
1034	prepare_cede (&ta);	1058	prepare_cede (&ta);
1035	TRANSFER (ta);	1059	TRANSFER (ta);
1036	}	1060	}
…		…
1046	#endif	1070	#endif
1047	BOOT_PAGESIZE;	1071	BOOT_PAGESIZE;
1048		1072
1049	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1073	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1050		1074
1051	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1075	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1052	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1076	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1053	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1077	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
		1078	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1079	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1054		1080
1055	main_mainstack = PL_mainstack;	1081	main_mainstack = PL_mainstack;
1056		1082
1057	coroapi.ver = CORO_API_VERSION;	1083	coroapi.ver = CORO_API_VERSION;
1058	coroapi.transfer = api_transfer;	1084	coroapi.transfer = api_transfer;
…		…
1068	HV *hv;	1094	HV *hv;
1069	int i;	1095	int i;
1070		1096
1071	Newz (0, coro, 1, struct coro);	1097	Newz (0, coro, 1, struct coro);
1072	coro->args = newAV ();	1098	coro->args = newAV ();
		1099	coro->save = CORO_SAVE_ALL;
		1100	coro->flags = CF_NEW;
1073		1101
1074	hv = newHV ();	1102	hv = newHV ();
1075	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1103	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1076	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1104	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1077		1105
1078	for (i = 1; i < items; i++)	1106	for (i = 1; i < items; i++)
1079	av_push (coro->args, newSVsv (ST (i)));	1107	av_push (coro->args, newSVsv (ST (i)));
1080
1081	/coro->mainstack = 0; //actual work is done inside transfer /
1082	/coro->stack = 0;/
1083	}	1108	}
1084	OUTPUT:	1109	OUTPUT:
		1110	RETVAL
		1111
		1112	int
		1113	save (SV *coro, int new_save = -1)
		1114	CODE:
		1115	RETVAL = api_save (coro, new_save);
		1116	OUTPUT:
1085	RETVAL	1117	RETVAL
1086		1118
1087	void	1119	void
1088	_set_stacklevel (...)	1120	_set_stacklevel (...)
1089	ALIAS:	1121	ALIAS:
1090	Coro::State::transfer = 1	1122	Coro::State::transfer = 1
1091	Coro::schedule = 2	1123	Coro::schedule = 2
1092	Coro::cede = 3	1124	Coro::cede = 3
1093	Coro::Cont::yield = 4
1094	CODE:	1125	CODE:
1095	{	1126	{
1096	struct transfer_args ta;	1127	struct transfer_args ta;
1097		1128
1098	switch (ix)	1129	switch (ix)
1099	{	1130	{
1100	case 0:	1131	case 0:
1101	ta.prev = (struct coro )INT2PTR (coro_stack , SvIV (ST (0)));	1132	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1102	ta.next = 0;	1133	ta.next = 0;
1103	ta.flags = TRANSFER_SET_STACKLEVEL;
1104	break;	1134	break;
1105		1135
1106	case 1:	1136	case 1:
1107	if (items != 3)	1137	if (items != 2)
1108	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);	1138	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1109		1139
1110	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));	1140	prepare_transfer (&ta, ST (0), ST (1));
1111	break;	1141	break;
1112		1142
1113	case 2:	1143	case 2:
1114	prepare_schedule (&ta);	1144	prepare_schedule (&ta);
1115	break;	1145	break;
1116		1146
1117	case 3:	1147	case 3:
1118	prepare_cede (&ta);	1148	prepare_cede (&ta);
1119	break;	1149	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
1147	}	1150	}
1148		1151
1149	TRANSFER (ta);	1152	TRANSFER (ta);
1150	}	1153	}
1151		1154
…		…
1166	int code	1169	int code
1167	PROTOTYPE: $	1170	PROTOTYPE: $
1168	CODE:	1171	CODE:
1169	_exit (code);	1172	_exit (code);
1170		1173
		1174	int
		1175	cctx_count ()
		1176	CODE:
		1177	RETVAL = cctx_count;
		1178	OUTPUT:
		1179	RETVAL
		1180
		1181	int
		1182	cctx_idle ()
		1183	CODE:
		1184	RETVAL = cctx_idle;
		1185	OUTPUT:
		1186	RETVAL
		1187
1171	MODULE = Coro::State PACKAGE = Coro	1188	MODULE = Coro::State PACKAGE = Coro
1172		1189
1173	BOOT:	1190	BOOT:
1174	{	1191	{
1175	int i;	1192	int i;
…		…
1181	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1198	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1182	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1199	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1183	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1200	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1184	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1201	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1185		1202
1186	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1203	coro_current = get_sv ("Coro::current", FALSE);
1187	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1204	SvREADONLY_on (coro_current);
1188		1205
1189	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1206	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1190	coro_ready[i] = newAV ();	1207	coro_ready[i] = newAV ();
1191		1208
1192	{	1209	{
1193	SV *sv = perl_get_sv("Coro::API", 1);	1210	SV *sv = perl_get_sv("Coro::API", 1);
1194		1211
1195	coroapi.schedule = api_schedule;	1212	coroapi.schedule = api_schedule;
		1213	coroapi.save = api_save;
1196	coroapi.cede = api_cede;	1214	coroapi.cede = api_cede;
1197	coroapi.ready = api_ready;	1215	coroapi.ready = api_ready;
		1216	coroapi.is_ready = api_is_ready;
1198	coroapi.nready = &coro_nready;	1217	coroapi.nready = &coro_nready;
1199	coroapi.current = coro_current;	1218	coroapi.current = coro_current;
1200		1219
1201	GCoroAPI = &coroapi;	1220	GCoroAPI = &coroapi;
1202	sv_setiv (sv, (IV)&coroapi);	1221	sv_setiv (sv, (IV)&coroapi);
1203	SvREADONLY_on (sv);	1222	SvREADONLY_on (sv);
1204	}	1223	}
1205	}	1224	}
		1225
		1226	void
		1227	_set_current (SV *current)
		1228	PROTOTYPE: $
		1229	CODE:
		1230	SvREFCNT_dec (SvRV (coro_current));
		1231	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1206		1232
1207	int	1233	int
1208	prio (Coro::State coro, int newprio = 0)	1234	prio (Coro::State coro, int newprio = 0)
1209	ALIAS:	1235	ALIAS:
1210	nice = 1	1236	nice = 1
…		…
1222		1248
1223	coro->prio = newprio;	1249	coro->prio = newprio;
1224	}	1250	}
1225	}	1251	}
1226		1252
1227	void	1253	SV *
1228	ready (SV *self)	1254	ready (SV *self)
1229	PROTOTYPE: $	1255	PROTOTYPE: $
1230	CODE:	1256	CODE:
1231	api_ready (self);	1257	RETVAL = boolSV (api_ready (self));
		1258	OUTPUT:
		1259	RETVAL
		1260
		1261	SV *
		1262	is_ready (SV *self)
		1263	PROTOTYPE: $
		1264	CODE:
		1265	RETVAL = boolSV (api_is_ready (self));
		1266	OUTPUT:
		1267	RETVAL
1232		1268
1233	int	1269	int
1234	nready (...)	1270	nready (...)
1235	PROTOTYPE:	1271	PROTOTYPE:
1236	CODE:	1272	CODE:
…		…
1242		1278
1243	SV *	1279	SV *
1244	_get_state ()	1280	_get_state ()
1245	CODE:	1281	CODE:
1246	{	1282	{
1247	struct {	1283	struct io_state *data;
1248	int errorno;
1249	int laststype;
1250	int laststatval;
1251	Stat_t statcache;
1252	} data;
1253		1284
		1285	RETVAL = newSV (sizeof (struct io_state));
		1286	data = (struct io_state *)SvPVX (RETVAL);
		1287	SvCUR_set (RETVAL, sizeof (struct io_state));
		1288	SvPOK_only (RETVAL);
		1289
1254	data.errorno = errno;	1290	data->errorno = errno;
1255	data.laststype = PL_laststype;	1291	data->laststype = PL_laststype;
1256	data.laststatval = PL_laststatval;	1292	data->laststatval = PL_laststatval;
1257	data.statcache = PL_statcache;	1293	data->statcache = PL_statcache;
1258
1259	RETVAL = newSVpvn ((char *)&data, sizeof data);
1260	}	1294	}
1261	OUTPUT:	1295	OUTPUT:
1262	RETVAL	1296	RETVAL
1263		1297
1264	void	1298	void
1265	_set_state (char *data_)	1299	_set_state (char *data_)
1266	PROTOTYPE: $	1300	PROTOTYPE: $
1267	CODE:	1301	CODE:
1268	{	1302	{
1269	struct {	1303	struct io_state data = (void )data_;
1270	int errorno;
1271	int laststype;
1272	int laststatval;
1273	Stat_t statcache;
1274	} data = (void )data_;
1275		1304
1276	errno = data->errorno;	1305	errno = data->errorno;
1277	PL_laststype = data->laststype;	1306	PL_laststype = data->laststype;
1278	PL_laststatval = data->laststatval;	1307	PL_laststatval = data->laststatval;
1279	PL_statcache = data->statcache;	1308	PL_statcache = data->statcache;
1280	}	1309	}
		1310

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Comparing Coro/Coro/State.xs (file contents): Revision 1.104 by root, Mon Nov 27 01:51:02 2006 UTC vs. Revision 1.125 by root, Mon Dec 11 20:54:45 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.104 by root, Mon Nov 27 01:51:02 2006 UTC vs.
Revision 1.125 by root, Mon Dec 11 20:54:45 2006 UTC