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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.100 by root, Mon Nov 27 00:07:49 2006 UTC vs.
Revision 1.120 by root, Sat Dec 2 18:01:30 2006 UTC

…		…
3	#include "EXTERN.h"	3	#include "EXTERN.h"
4	#include "perl.h"	4	#include "perl.h"
5	#include "XSUB.h"	5	#include "XSUB.h"
6		6
7	#include "patchlevel.h"	7	#include "patchlevel.h"
		8
		9	#if USE_VALGRIND
		10	# include <valgrind/valgrind.h>
		11	#endif
		12
		13	/* the maximum number of idle cctx that will be pooled */
		14	#define MAX_IDLE_CCTX 8
8		15
9	#define PERL_VERSION_ATLEAST(a,b,c) \	16	#define PERL_VERSION_ATLEAST(a,b,c) \
10	(PERL_REVISION > (a) \	17	(PERL_REVISION > (a) \
11	\|\| (PERL_REVISION == (a) \	18	\|\| (PERL_REVISION == (a) \
12	&& (PERL_VERSION > (b) \	19	&& (PERL_VERSION > (b) \
…		…
58	# ifndef PAGESIZE	65	# ifndef PAGESIZE
59	# define PAGESIZE pagesize	66	# define PAGESIZE pagesize
60	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)	67	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
61	static long pagesize;	68	static long pagesize;
62	# else	69	# else
63	# define BOOT_PAGESIZE	70	# define BOOT_PAGESIZE (void)0
64	# endif	71	# endif
		72	#else
		73	# define PAGESIZE 0
		74	# define BOOT_PAGESIZE (void)0
65	#endif	75	#endif
66		76
67	/* The next macro should declare a variable stacklevel that contains and approximation	77	/* The next macro should declare a variable stacklevel that contains and approximation
68	* to the current C stack pointer. Its property is that it changes with each call	78	* to the current C stack pointer. Its property is that it changes with each call
69	* and should be unique. */	79	* and should be unique. */
…		…
91	#else	101	#else
92	# define LOCK (void)0	102	# define LOCK (void)0
93	# define UNLOCK (void)0	103	# define UNLOCK (void)0
94	#endif	104	#endif
95		105
		106	struct io_state
		107	{
		108	int errorno;
		109	I32 laststype;
		110	int laststatval;
		111	Stat_t statcache;
		112	};
		113
96	static struct CoroAPI coroapi;	114	static struct CoroAPI coroapi;
97	static AV main_mainstack; / used to differentiate between $main and others */	115	static AV main_mainstack; / used to differentiate between $main and others */
98	static HV coro_state_stash, coro_stash;	116	static HV coro_state_stash, coro_stash;
99	static SV coro_mortal; / will be freed after next transfer */	117	static SV coro_mortal; / will be freed after next transfer */
100		118
		119	static struct coro_cctx *cctx_first;
		120	static int cctx_count, cctx_idle;
		121
101	/* this is a structure representing a c-level coroutine */	122	/* this is a structure representing a c-level coroutine */
102	typedef struct coro_stack {	123	typedef struct coro_cctx {
103	struct coro_stack *next;	124	struct coro_cctx *next;
104		125
105	/* the stack */	126	/* the stack */
106	void *sptr;	127	void *sptr;
107	long ssize; /* positive == mmap, otherwise malloc */	128	long ssize; /* positive == mmap, otherwise malloc */
108		129
109	/* cpu state */	130	/* cpu state */
110	void idle_sp; / sp of top-level transfer/schedule/cede call */	131	void idle_sp; / sp of top-level transfer/schedule/cede call */
111	JMPENV *top_env;	132	JMPENV *top_env;
112	coro_context cctx;	133	coro_context cctx;
113	} coro_stack;	134
		135	int inuse;
		136
		137	#if USE_VALGRIND
		138	int valgrind_id;
		139	#endif
		140	} coro_cctx;
		141
		142	enum {
		143	CF_RUNNING = 0x0001, /* coroutine is running */
		144	CF_READY = 0x0002, /* coroutine is ready */
		145	CF_NEW = 0x0004, /* ahs never been switched to */
		146	};
114		147
115	/* this is a structure representing a perl-level coroutine */	148	/* this is a structure representing a perl-level coroutine */
116	struct coro {	149	struct coro {
117	/* the c coroutine allocated to this perl coroutine, if any */	150	/* the c coroutine allocated to this perl coroutine, if any */
118	coro_stack *stack;	151	coro_cctx *cctx;
119		152
120	/* data associated with this coroutine (initial args) */	153	/* data associated with this coroutine (initial args) */
121	AV *args;	154	AV *args;
122	int refcnt;	155	int refcnt;
		156	int flags;
123		157
124	/* optionally saved, might be zero */	158	/* optionally saved, might be zero */
125	AV *defav;	159	AV *defav;
126	SV *defsv;	160	SV *defsv;
127	SV *errsv;	161	SV *errsv;
128		162
129	/* saved global state not related to stacks */	163	#define VAR(name,type) type name;
130	U8 dowarn;	164	# include "state.h"
131	I32 in_eval;	165	#undef VAR
132
133	/* the stacks and related info (callchain etc..) */
134	PERL_SI *curstackinfo;
135	AV *curstack;
136	AV *mainstack;
137	SV **stack_sp;
138	OP *op;
139	SV **curpad;
140	AV *comppad;
141	CV *compcv;
142	SV **stack_base;
143	SV **stack_max;
144	SV **tmps_stack;
145	I32 tmps_floor;
146	I32 tmps_ix;
147	I32 tmps_max;
148	I32 *markstack;
149	I32 *markstack_ptr;
150	I32 *markstack_max;
151	I32 *scopestack;
152	I32 scopestack_ix;
153	I32 scopestack_max;
154	ANY *savestack;
155	I32 savestack_ix;
156	I32 savestack_max;
157	OP **retstack;
158	I32 retstack_ix;
159	I32 retstack_max;
160	PMOP *curpm;
161	COP *curcop;
162		166
163	/* coro process data */	167	/* coro process data */
164	int prio;	168	int prio;
165	};	169	};
166		170
…		…
230		234
231	#define PERL_MAGIC_coro PERL_MAGIC_ext	235	#define PERL_MAGIC_coro PERL_MAGIC_ext
232		236
233	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	237	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
234		238
		239	#define CORO_MAGIC(cv) \
		240	SvMAGIC (cv) \
		241	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
		242	? SvMAGIC (cv) \
		243	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
		244	: 0
		245
235	/* the next two functions merely cache the padlists */	246	/* the next two functions merely cache the padlists */
236	static void	247	static void
237	get_padlist (CV *cv)	248	get_padlist (CV *cv)
238	{	249	{
239	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	250	MAGIC *mg = CORO_MAGIC (cv);
		251	AV *av;
240		252
241	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	253	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
242	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	254	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
243	else	255	else
244	{	256	{
245	#if 0	257	#if 0
246	/* this is probably cleaner, but also slower? */	258	/* this is probably cleaner, but also slower? */
247	CV *cp = Perl_cv_clone (cv);	259	CV *cp = Perl_cv_clone (cv);
…		…
255	}	267	}
256		268
257	static void	269	static void
258	put_padlist (CV *cv)	270	put_padlist (CV *cv)
259	{	271	{
260	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	272	MAGIC *mg = CORO_MAGIC (cv);
		273	AV *av;
261		274
262	if (!mg)	275	if (!mg)
263	{	276	{
264	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	277	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
265	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	278	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
266	mg->mg_virtual = &vtbl_coro;	279	mg->mg_virtual = &vtbl_coro;
267	mg->mg_obj = (SV *)newAV ();	280	mg->mg_obj = (SV *)newAV ();
268	}	281	}
269		282
270	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));	283	av = (AV *)mg->mg_obj;
		284
		285	if (AvFILLp (av) >= AvMAX (av))
		286	av_extend (av, AvMAX (av) + 1);
		287
		288	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
271	}	289	}
272		290
273	#define SB do {	291	#define SB do {
274	#define SE } while (0)	292	#define SE } while (0)
275		293
276	#define LOAD(state) load_state((state));	294	#define LOAD(state) load_state ((state))
277	#define SAVE(state,flags) save_state((state),(flags));	295	#define SAVE(state,flags) save_state ((state),(flags))
278		296
279	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	297	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
280		298
281	static void	299	static void
282	load_state(Coro__State c)	300	load_state (Coro__State c)
283	{	301	{
284	PL_dowarn = c->dowarn;	302	#define VAR(name,type) PL_ ## name = c->name;
285	PL_in_eval = c->in_eval;	303	# include "state.h"
286		304	#undef VAR
287	PL_curstackinfo = c->curstackinfo;
288	PL_curstack = c->curstack;
289	PL_mainstack = c->mainstack;
290	PL_stack_sp = c->stack_sp;
291	PL_op = c->op;
292	PL_curpad = c->curpad;
293	PL_comppad = c->comppad;
294	PL_compcv = c->compcv;
295	PL_stack_base = c->stack_base;
296	PL_stack_max = c->stack_max;
297	PL_tmps_stack = c->tmps_stack;
298	PL_tmps_floor = c->tmps_floor;
299	PL_tmps_ix = c->tmps_ix;
300	PL_tmps_max = c->tmps_max;
301	PL_markstack = c->markstack;
302	PL_markstack_ptr = c->markstack_ptr;
303	PL_markstack_max = c->markstack_max;
304	PL_scopestack = c->scopestack;
305	PL_scopestack_ix = c->scopestack_ix;
306	PL_scopestack_max = c->scopestack_max;
307	PL_savestack = c->savestack;
308	PL_savestack_ix = c->savestack_ix;
309	PL_savestack_max = c->savestack_max;
310	#if !PERL_VERSION_ATLEAST (5,9,0)
311	PL_retstack = c->retstack;
312	PL_retstack_ix = c->retstack_ix;
313	PL_retstack_max = c->retstack_max;
314	#endif
315	PL_curpm = c->curpm;
316	PL_curcop = c->curcop;
317		305
318	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	306	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
319	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	307	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
320	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	308	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
321		309
…		…
324	CV *cv;	312	CV *cv;
325		313
326	/* now do the ugly restore mess */	314	/* now do the ugly restore mess */
327	while ((cv = (CV *)POPs))	315	while ((cv = (CV *)POPs))
328	{	316	{
329	AV padlist = (AV )POPs;
330
331	if (padlist)
332	{
333	put_padlist (cv); /* mark this padlist as available */	317	put_padlist (cv); /* mark this padlist as available */
334	CvPADLIST(cv) = padlist;	318	CvDEPTH (cv) = PTR2IV (POPs);
335	}	319	CvPADLIST (cv) = (AV *)POPs;
336
337	++CvDEPTH(cv);
338	}	320	}
339		321
340	PUTBACK;	322	PUTBACK;
341	}	323	}
342	}	324	}
343		325
344	static void	326	static void
345	save_state(Coro__State c, int flags)	327	save_state (Coro__State c, int flags)
346	{	328	{
347	{	329	{
348	dSP;	330	dSP;
349	I32 cxix = cxstack_ix;	331	I32 cxix = cxstack_ix;
350	PERL_CONTEXT *ccstk = cxstack;	332	PERL_CONTEXT *ccstk = cxstack;
…		…
361	{	343	{
362	while (cxix >= 0)	344	while (cxix >= 0)
363	{	345	{
364	PERL_CONTEXT *cx = &ccstk[cxix--];	346	PERL_CONTEXT *cx = &ccstk[cxix--];
365		347
366	if (CxTYPE(cx) == CXt_SUB)	348	if (CxTYPE (cx) == CXt_SUB)
367	{	349	{
368	CV *cv = cx->blk_sub.cv;	350	CV *cv = cx->blk_sub.cv;
		351
369	if (CvDEPTH(cv))	352	if (CvDEPTH (cv))
370	{	353	{
371	EXTEND (SP, CvDEPTH(cv)*2);	354	EXTEND (SP, 3);
372		355
373	while (--CvDEPTH(cv))
374	{
375	/* this tells the restore code to increment CvDEPTH */
376	PUSHs (Nullsv);
377	PUSHs ((SV *)cv);
378	}
379
380	PUSHs ((SV *)CvPADLIST(cv));	356	PUSHs ((SV *)CvPADLIST (cv));
		357	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
381	PUSHs ((SV *)cv);	358	PUSHs ((SV *)cv);
382		359
		360	CvDEPTH (cv) = 0;
383	get_padlist (cv);	361	get_padlist (cv);
384	}	362	}
385	}	363	}
386	#ifdef CXt_FORMAT	364	#ifdef CXt_FORMAT
387	else if (CxTYPE(cx) == CXt_FORMAT)	365	else if (CxTYPE (cx) == CXt_FORMAT)
388	{	366	{
389	/* I never used formats, so how should I know how these are implemented? */	367	/* I never used formats, so how should I know how these are implemented? */
390	/* my bold guess is as a simple, plain sub... */	368	/* my bold guess is as a simple, plain sub... */
391	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	369	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
392	}	370	}
…		…
406		384
407	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	385	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
408	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	386	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
409	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	387	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
410		388
411	c->dowarn = PL_dowarn;	389	#define VAR(name,type)c->name = PL_ ## name;
412	c->in_eval = PL_in_eval;	390	# include "state.h"
413		391	#undef VAR
414	c->curstackinfo = PL_curstackinfo;
415	c->curstack = PL_curstack;
416	c->mainstack = PL_mainstack;
417	c->stack_sp = PL_stack_sp;
418	c->op = PL_op;
419	c->curpad = PL_curpad;
420	c->comppad = PL_comppad;
421	c->compcv = PL_compcv;
422	c->stack_base = PL_stack_base;
423	c->stack_max = PL_stack_max;
424	c->tmps_stack = PL_tmps_stack;
425	c->tmps_floor = PL_tmps_floor;
426	c->tmps_ix = PL_tmps_ix;
427	c->tmps_max = PL_tmps_max;
428	c->markstack = PL_markstack;
429	c->markstack_ptr = PL_markstack_ptr;
430	c->markstack_max = PL_markstack_max;
431	c->scopestack = PL_scopestack;
432	c->scopestack_ix = PL_scopestack_ix;
433	c->scopestack_max = PL_scopestack_max;
434	c->savestack = PL_savestack;
435	c->savestack_ix = PL_savestack_ix;
436	c->savestack_max = PL_savestack_max;
437	#if !PERL_VERSION_ATLEAST (5,9,0)
438	c->retstack = PL_retstack;
439	c->retstack_ix = PL_retstack_ix;
440	c->retstack_max = PL_retstack_max;
441	#endif
442	c->curpm = PL_curpm;
443	c->curcop = PL_curcop;
444	}	392	}
445		393
446	/*	394	/*
447	* allocate various perl stacks. This is an exact copy	395	* allocate various perl stacks. This is an exact copy
448	* of perl.c:init_stacks, except that it uses less memory	396	* of perl.c:init_stacks, except that it uses less memory
…		…
450	* not usually need a lot of stackspace.	398	* not usually need a lot of stackspace.
451	*/	399	*/
452	static void	400	static void
453	coro_init_stacks ()	401	coro_init_stacks ()
454	{	402	{
455	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	403	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
456	PL_curstackinfo->si_type = PERLSI_MAIN;	404	PL_curstackinfo->si_type = PERLSI_MAIN;
457	PL_curstack = PL_curstackinfo->si_stack;	405	PL_curstack = PL_curstackinfo->si_stack;
458	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	406	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
459		407
460	PL_stack_base = AvARRAY(PL_curstack);	408	PL_stack_base = AvARRAY(PL_curstack);
461	PL_stack_sp = PL_stack_base;	409	PL_stack_sp = PL_stack_base;
462	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	410	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
463		411
464	New(50,PL_tmps_stack,96,SV*);	412	New(50,PL_tmps_stack,128,SV*);
465	PL_tmps_floor = -1;	413	PL_tmps_floor = -1;
466	PL_tmps_ix = -1;	414	PL_tmps_ix = -1;
467	PL_tmps_max = 96;	415	PL_tmps_max = 128;
468		416
469	New(54,PL_markstack,16,I32);	417	New(54,PL_markstack,32,I32);
470	PL_markstack_ptr = PL_markstack;	418	PL_markstack_ptr = PL_markstack;
471	PL_markstack_max = PL_markstack + 16;	419	PL_markstack_max = PL_markstack + 32;
472		420
473	#ifdef SET_MARK_OFFSET	421	#ifdef SET_MARK_OFFSET
474	SET_MARK_OFFSET;	422	SET_MARK_OFFSET;
475	#endif	423	#endif
476		424
477	New(54,PL_scopestack,16,I32);	425	New(54,PL_scopestack,32,I32);
478	PL_scopestack_ix = 0;	426	PL_scopestack_ix = 0;
479	PL_scopestack_max = 16;	427	PL_scopestack_max = 32;
480		428
481	New(54,PL_savestack,96,ANY);	429	New(54,PL_savestack,64,ANY);
482	PL_savestack_ix = 0;	430	PL_savestack_ix = 0;
483	PL_savestack_max = 96;	431	PL_savestack_max = 64;
484		432
485	#if !PERL_VERSION_ATLEAST (5,9,0)	433	#if !PERL_VERSION_ATLEAST (5,9,0)
486	New(54,PL_retstack,8,OP*);	434	New(54,PL_retstack,16,OP*);
487	PL_retstack_ix = 0;	435	PL_retstack_ix = 0;
488	PL_retstack_max = 8;	436	PL_retstack_max = 16;
489	#endif	437	#endif
490	}	438	}
491		439
492	/*	440	/*
493	* destroy the stacks, the callchain etc...	441	* destroy the stacks, the callchain etc...
494	*/	442	*/
495	static void	443	static void
496	destroy_stacks()	444	coro_destroy_stacks ()
497	{	445	{
498	if (!IN_DESTRUCT)	446	if (!IN_DESTRUCT)
499	{	447	{
500	/* is this ugly, I ask? */	448	/* is this ugly, I ask? */
501	LEAVE_SCOPE (0);	449	LEAVE_SCOPE (0);
…		…
543	setup_coro (struct coro *coro)	491	setup_coro (struct coro *coro)
544	{	492	{
545	/*	493	/*
546	* emulate part of the perl startup here.	494	* emulate part of the perl startup here.
547	*/	495	*/
548	dTHX;
549	dSP;
550	UNOP myop;
551	SV sub_init = (SV )get_cv ("Coro::State::coro_init", FALSE);
552		496
553	coro_init_stacks ();	497	coro_init_stacks ();
554	/PL_curcop = 0;/	498
555	/PL_in_eval = PL_in_eval;/ /* inherit */	499	PL_curcop = &PL_compiling;
		500	PL_in_eval = EVAL_NULL;
		501	PL_curpm = 0;
		502	PL_localizing = 0;
		503	PL_dirty = 0;
		504	PL_restartop = 0;
		505
		506	{
		507	dSP;
		508	LOGOP myop;
		509
556	SvREFCNT_dec (GvAV (PL_defgv));	510	SvREFCNT_dec (GvAV (PL_defgv));
557	GvAV (PL_defgv) = coro->args; coro->args = 0;	511	GvAV (PL_defgv) = coro->args; coro->args = 0;
558		512
559	SPAGAIN;
560
561	Zero (&myop, 1, UNOP);	513	Zero (&myop, 1, LOGOP);
562	myop.op_next = Nullop;	514	myop.op_next = Nullop;
563	myop.op_flags = OPf_WANT_VOID;	515	myop.op_flags = OPf_WANT_VOID;
564		516
		517	PUSHMARK (SP);
		518	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
		519	PUTBACK;
565	PL_op = (OP *)&myop;	520	PL_op = (OP *)&myop;
566
567	PUSHMARK(SP);
568	XPUSHs (sub_init);
569	PUTBACK;
570	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	521	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
571	SPAGAIN;	522	SPAGAIN;
		523	}
572		524
573	ENTER; /* necessary e.g. for dounwind */	525	ENTER; /* necessary e.g. for dounwind */
574	}	526	}
575		527
576	static void	528	static void
…		…
581	SvREFCNT_dec (coro_mortal);	533	SvREFCNT_dec (coro_mortal);
582	coro_mortal = 0;	534	coro_mortal = 0;
583	}	535	}
584	}	536	}
585		537
		538	/* inject a fake call to Coro::State::_cctx_init into the execution */
586	static void NOINLINE	539	static void NOINLINE
587	prepare_cctx (coro_stack *cctx)	540	prepare_cctx (coro_cctx *cctx)
588	{	541	{
589	dSP;	542	dSP;
590	UNOP myop;	543	LOGOP myop;
591		544
592	Zero (&myop, 1, UNOP);	545	Zero (&myop, 1, LOGOP);
593	myop.op_next = PL_op;	546	myop.op_next = PL_op;
594	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	547	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
595		548
596	PUSHMARK(SP);	549	PUSHMARK (SP);
597	EXTEND (SP, 2);	550	EXTEND (SP, 2);
598	PUSHs (newSViv (PTR2IV (cctx)));	551	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));
599	PUSHs ((SV *)get_cv ("Coro::State::cctx_init", FALSE));	552	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
600	PUTBACK;	553	PUTBACK;
		554	PL_op = (OP *)&myop;
601	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);	555	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
602	SPAGAIN;	556	SPAGAIN;
603	}	557	}
604		558
605	static void	559	static void
606	coro_run (void *arg)	560	coro_run (void *arg)
607	{	561	{
		562	/* coro_run is the alternative tail of transfer(), so unlock here. */
		563	UNLOCK;
		564
608	/*	565	/*
609	* this is a _very_ stripped down perl interpreter ;)	566	* this is a _very_ stripped down perl interpreter ;)
610	*/	567	*/
611	UNLOCK;
612
613	PL_top_env = &PL_start_env;	568	PL_top_env = &PL_start_env;
		569
		570	/* inject call to cctx_init */
614	prepare_cctx ((coro_stack *)arg);	571	prepare_cctx ((coro_cctx *)arg);
615		572
616	/* somebody will hit me for both perl_run and PL_restartop */	573	/* somebody will hit me for both perl_run and PL_restartop */
617	perl_run (PERL_GET_CONTEXT);	574	PL_restartop = PL_op;
		575	perl_run (PL_curinterp);
618		576
619	fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr);	577	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
620	abort ();	578	abort ();
621	}	579	}
622		580
623	static coro_stack *	581	static coro_cctx *
624	stack_new ()	582	cctx_new ()
625	{	583	{
626	coro_stack *stack;	584	coro_cctx *cctx;
627		585
		586	++cctx_count;
		587
628	New (0, stack, 1, coro_stack);	588	New (0, cctx, 1, coro_cctx);
629		589
630	#if HAVE_MMAP	590	#if HAVE_MMAP
631		591
632	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	592	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
633	/* mmap suppsedly does allocate-on-write for us */	593	/* mmap supposedly does allocate-on-write for us */
634	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	594	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
635		595
636	if (stack->sptr == (void *)-1)	596	if (cctx->sptr == (void *)-1)
637	{	597	{
638	perror ("FATAL: unable to mmap stack for coroutine");	598	perror ("FATAL: unable to mmap stack for coroutine");
639	_exit (EXIT_FAILURE);	599	_exit (EXIT_FAILURE);
640	}	600	}
641		601
642	# if STACKGUARD	602	# if STACKGUARD
643	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	603	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
644	# endif	604	# endif
645		605
646	#else	606	#else
647		607
648	stack->ssize = STACKSIZE * (long)sizeof (long);	608	cctx->ssize = STACKSIZE * (long)sizeof (long);
649	New (0, stack->sptr, STACKSIZE, long);	609	New (0, cctx->sptr, STACKSIZE, long);
650		610
651	if (!stack->sptr)	611	if (!cctx->sptr)
652	{	612	{
653	perror (stderr, "FATAL: unable to malloc stack for coroutine");	613	perror ("FATAL: unable to malloc stack for coroutine");
654	_exit (EXIT_FAILURE);	614	_exit (EXIT_FAILURE);
655	}	615	}
656		616
657	#endif	617	#endif
658		618
		619	#if USE_VALGRIND
		620	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
		621	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
		622	cctx->ssize + (char *)cctx->sptr
		623	);
		624	#endif
		625
659	coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize);	626	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
660		627
661	return stack;	628	return cctx;
662	}	629	}
663		630
664	static void	631	static void
665	stack_free (coro_stack *stack)	632	cctx_destroy (coro_cctx *cctx)
666	{	633	{
667	if (!stack)	634	if (!cctx)
668	return;	635	return;
669		636
		637	--cctx_count;
		638
		639	#if USE_VALGRIND
		640	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
		641	#endif
		642
670	#if HAVE_MMAP	643	#if HAVE_MMAP
671	munmap (stack->sptr, stack->ssize);	644	munmap (cctx->sptr, cctx->ssize);
672	#else	645	#else
673	Safefree (stack->sptr);	646	Safefree (cctx->sptr);
674	#endif	647	#endif
675		648
676	Safefree (stack);	649	Safefree (cctx);
677	}	650	}
678		651
679	static coro_stack *stack_first;
680
681	static coro_stack *	652	static coro_cctx *
682	stack_get ()	653	cctx_get ()
683	{	654	{
684	coro_stack *stack;	655	coro_cctx *cctx;
685		656
686	if (stack_first)	657	if (cctx_first)
687	{	658	{
688	stack = stack_first;	659	cctx = cctx_first;
689	stack_first = stack->next;	660	cctx_first = cctx->next;
		661	--cctx_idle;
690	}	662	}
691	else	663	else
692	{	664	{
693	stack = stack_new ();	665	cctx = cctx_new ();
694	PL_op = PL_op->op_next;	666	PL_op = PL_op->op_next;
695	}	667	}
696		668
697	return stack;	669	return cctx;
698	}	670	}
699		671
700	static void	672	static void
701	stack_put (coro_stack *stack)	673	cctx_put (coro_cctx *cctx)
702	{	674	{
703	stack->next = stack_first;	675	/* free another cctx if overlimit */
704	stack_first = stack;	676	if (cctx_idle >= MAX_IDLE_CCTX)
		677	{
		678	coro_cctx *first = cctx_first;
		679	cctx_first = first->next;
		680	--cctx_idle;
		681
		682	assert (!first->inuse);
		683	cctx_destroy (first);
		684	}
		685
		686	++cctx_idle;
		687	cctx->next = cctx_first;
		688	cctx_first = cctx;
705	}	689	}
706		690
707	/* never call directly, always through the coro_state_transfer global variable */	691	/* never call directly, always through the coro_state_transfer global variable */
708	static void NOINLINE	692	static void NOINLINE
709	transfer (struct coro prev, struct coro next, int flags)	693	transfer (struct coro prev, struct coro next, int flags)
710	{	694	{
711	dSTACKLEVEL;	695	dSTACKLEVEL;
712		696
713	/* sometimes transfer is only called to set idle_sp */	697	/* sometimes transfer is only called to set idle_sp */
714	if (flags == TRANSFER_SET_STACKLEVEL)	698	if (flags == TRANSFER_SET_STACKLEVEL)
715	((coro_stack *)prev)->idle_sp = STACKLEVEL;	699	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
716	else if (prev != next)	700	else if (prev != next)
717	{	701	{
718	coro_stack *prev__stack;	702	coro_cctx *prev__cctx;
		703
		704	if (prev->flags & CF_NEW)
		705	{
		706	/* create a new empty context */
		707	Newz (0, prev->cctx, 1, coro_cctx);
		708	prev->cctx->inuse = 1;
		709	prev->flags &= ~CF_NEW;
		710	prev->flags \|= CF_RUNNING;
		711	}
		712
		713	/TODO: must not croak here /
		714	if (!prev->flags & CF_RUNNING)
		715	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
		716
		717	if (next->flags & CF_RUNNING)
		718	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		719
		720	prev->flags &= ~CF_RUNNING;
		721	next->flags \|= CF_RUNNING;
719		722
720	LOCK;	723	LOCK;
721		724
722	if (next->mainstack)	725	if (next->flags & CF_NEW)
		726	{
		727	/* need to start coroutine */
		728	next->flags &= ~CF_NEW;
		729	/* first get rid of the old state */
		730	SAVE (prev, -1);
		731	/* setup coroutine call */
		732	setup_coro (next);
		733	/* need a new stack */
		734	assert (!next->stack);
		735	}
		736	else
723	{	737	{
724	/* coroutine already started */	738	/* coroutine already started */
725	SAVE (prev, flags);	739	SAVE (prev, flags);
726	LOAD (next);	740	LOAD (next);
727	}	741	}
728	else	742
		743	prev__cctx = prev->cctx;
		744
		745	/* possibly "free" the cctx */
		746	if (prev__cctx->idle_sp == STACKLEVEL)
729	{	747	{
730	/* need to start coroutine */	748	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
731	/* first get rid of the old state */	749	assert (PL_top_env == prev__cctx->top_env);
732	SAVE (prev, -1);	750
733	/* setup coroutine call */	751	prev->cctx = 0;
734	setup_coro (next);	752
735	/* need a stack */	753	cctx_put (prev__cctx);
736	next->stack = 0;	754	prev__cctx->inuse = 0;
737	}	755	}
738		756
739	if (!prev->stack)	757	if (!next->cctx)
740	/* create a new empty context */
741	Newz (0, prev->stack, 1, coro_stack);
742
743	prev__stack = prev->stack;
744
745	/* possibly "free" the stack */
746	if (prev__stack->idle_sp == STACKLEVEL)
747	{	758	{
748	stack_put (prev__stack);	759	next->cctx = cctx_get ();
749	prev->stack = 0;	760	assert (!next->cctx->inuse);
		761	next->cctx->inuse = 1;
750	}	762	}
751		763
752	if (!next->stack)
753	next->stack = stack_get ();
754
755	if (prev__stack != next->stack)	764	if (prev__cctx != next->cctx)
756	{	765	{
757	prev__stack->top_env = PL_top_env;	766	prev__cctx->top_env = PL_top_env;
758	PL_top_env = next->stack->top_env;	767	PL_top_env = next->cctx->top_env;
759	coro_transfer (&prev__stack->cctx, &next->stack->cctx);	768	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
760	}	769	}
761		770
762	free_coro_mortal ();	771	free_coro_mortal ();
763		772
764	UNLOCK;	773	UNLOCK;
…		…
781		790
782	if (coro->mainstack && coro->mainstack != main_mainstack)	791	if (coro->mainstack && coro->mainstack != main_mainstack)
783	{	792	{
784	struct coro temp;	793	struct coro temp;
785		794
		795	if (coro->flags & CF_RUNNING)
		796	croak ("FATAL: tried to destroy currently running coroutine");
		797
786	SAVE ((&temp), TRANSFER_SAVE_ALL);	798	SAVE ((&temp), TRANSFER_SAVE_ALL);
787	LOAD (coro);	799	LOAD (coro);
788		800
789	destroy_stacks ();	801	coro_destroy_stacks ();
790		802
791	LOAD ((&temp)); /* this will get rid of defsv etc.. */	803	LOAD ((&temp)); /* this will get rid of defsv etc.. */
792		804
793	coro->mainstack = 0;	805	coro->mainstack = 0;
794	}	806	}
795		807
796	stack_free (coro->stack);	808	cctx_destroy (coro->cctx);
797	SvREFCNT_dec (coro->args);	809	SvREFCNT_dec (coro->args);
798	Safefree (coro);	810	Safefree (coro);
799	}	811	}
800		812
801	static int	813	static int
…		…
823	0, 0, 0, 0,	835	0, 0, 0, 0,
824	coro_state_clear,	836	coro_state_clear,
825	0,	837	0,
826	#ifdef MGf_DUP	838	#ifdef MGf_DUP
827	coro_state_dup,	839	coro_state_dup,
		840	#else
		841	# define MGf_DUP 0
828	#endif	842	#endif
829	};	843	};
830		844
831	static struct coro *	845	static struct coro *
832	SvSTATE (SV *coro)	846	SvSTATE (SV *coro)
…		…
859	}	873	}
860		874
861	static void	875	static void
862	api_transfer (SV prev, SV next, int flags)	876	api_transfer (SV prev, SV next, int flags)
863	{	877	{
864	dTHX;
865	struct transfer_args ta;	878	struct transfer_args ta;
866		879
867	prepare_transfer (&ta, prev, next, flags);	880	prepare_transfer (&ta, prev, next, flags);
868	TRANSFER (ta);	881	TRANSFER (ta);
869	}	882	}
…		…
876	#define PRIO_LOW -1	889	#define PRIO_LOW -1
877	#define PRIO_IDLE -3	890	#define PRIO_IDLE -3
878	#define PRIO_MIN -4	891	#define PRIO_MIN -4
879		892
880	/* for Coro.pm */	893	/* for Coro.pm */
881	static GV coro_current, coro_idle;	894	static SV *coro_current;
882	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	895	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
883	static int coro_nready;	896	static int coro_nready;
884		897
885	static void	898	static void
886	coro_enq (SV *sv)	899	coro_enq (SV *coro_sv)
887	{	900	{
888	int prio;
889
890	if (SvTYPE (sv) != SVt_PVHV)
891	croak ("Coro::ready tried to enqueue something that is not a coroutine");
892
893	prio = SvSTATE (sv)->prio;
894
895	av_push (coro_ready [prio - PRIO_MIN], sv);	901	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
896	coro_nready++;	902	coro_nready++;
897	}	903	}
898		904
899	static SV *	905	static SV *
900	coro_deq (int min_prio)	906	coro_deq (int min_prio)
…		…
913	}	919	}
914		920
915	return 0;	921	return 0;
916	}	922	}
917		923
918	static void	924	static int
919	api_ready (SV *coro)	925	api_ready (SV *coro_sv)
920	{	926	{
921	dTHX;	927	struct coro *coro;
922		928
923	if (SvROK (coro))	929	if (SvROK (coro_sv))
924	coro = SvRV (coro);	930	coro_sv = SvRV (coro_sv);
		931
		932	coro = SvSTATE (coro_sv);
		933
		934	if (coro->flags & CF_READY)
		935	return 0;
		936
		937	#if 0 /* this is actually harmless */
		938	if (coro->flags & CF_RUNNING)
		939	croak ("Coro::ready called on currently running coroutine");
		940	#endif
		941
		942	coro->flags \|= CF_READY;
925		943
926	LOCK;	944	LOCK;
927	coro_enq (SvREFCNT_inc (coro));	945	coro_enq (SvREFCNT_inc (coro_sv));
928	UNLOCK;	946	UNLOCK;
		947
		948	return 1;
		949	}
		950
		951	static int
		952	api_is_ready (SV *coro_sv)
		953	{
		954	return !!SvSTATE (coro_sv)->flags & CF_READY;
929	}	955	}
930		956
931	static void	957	static void
932	prepare_schedule (struct transfer_args *ta)	958	prepare_schedule (struct transfer_args *ta)
933	{	959	{
934	SV current, prev, *next;	960	SV prev, next;
935
936	current = GvSV (coro_current);
937		961
938	for (;;)	962	for (;;)
939	{	963	{
940	LOCK;	964	LOCK;
941	next = coro_deq (PRIO_MIN);	965	next = coro_deq (PRIO_MIN);
…		…
950	ENTER;	974	ENTER;
951	SAVETMPS;	975	SAVETMPS;
952		976
953	PUSHMARK (SP);	977	PUSHMARK (SP);
954	PUTBACK;	978	PUTBACK;
955	call_sv (GvSV (coro_idle), G_DISCARD);	979	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
956		980
957	FREETMPS;	981	FREETMPS;
958	LEAVE;	982	LEAVE;
959	}	983	}
960	}	984	}
961		985
962	prev = SvRV (current);	986	prev = SvRV (coro_current);
963	SvRV (current) = next;	987	SvRV_set (coro_current, next);
964		988
965	/* free this only after the transfer */	989	/* free this only after the transfer */
966	LOCK;	990	LOCK;
967	free_coro_mortal ();	991	free_coro_mortal ();
968	UNLOCK;	992	UNLOCK;
969	coro_mortal = prev;	993	coro_mortal = prev;
970		994
		995	assert (!SvROK(prev));//D
		996	assert (!SvROK(next));//D
		997
971	ta->prev = SvSTATE (prev);	998	ta->prev = SvSTATE (prev);
972	ta->next = SvSTATE (next);	999	ta->next = SvSTATE (next);
973	ta->flags = TRANSFER_SAVE_ALL;	1000	ta->flags = TRANSFER_SAVE_ALL;
		1001
		1002	assert (ta->flags & CF_READY);
		1003	ta->next->flags &= ~CF_READY;
974	}	1004	}
975		1005
976	static void	1006	static void
977	prepare_cede (struct transfer_args *ta)	1007	prepare_cede (struct transfer_args *ta)
978	{	1008	{
979	LOCK;	1009	api_ready (coro_current);
980	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
981	UNLOCK;
982		1010
983	prepare_schedule (ta);	1011	prepare_schedule (ta);
984	}	1012	}
985		1013
986	static void	1014	static void
987	api_schedule (void)	1015	api_schedule (void)
988	{	1016	{
989	dTHX;
990	struct transfer_args ta;	1017	struct transfer_args ta;
991		1018
992	prepare_schedule (&ta);	1019	prepare_schedule (&ta);
993	TRANSFER (ta);	1020	TRANSFER (ta);
994	}	1021	}
995		1022
996	static void	1023	static void
997	api_cede (void)	1024	api_cede (void)
998	{	1025	{
999	dTHX;
1000	struct transfer_args ta;	1026	struct transfer_args ta;
1001		1027
1002	prepare_cede (&ta);	1028	prepare_cede (&ta);
1003	TRANSFER (ta);	1029	TRANSFER (ta);
1004	}	1030	}
…		…
1036	HV *hv;	1062	HV *hv;
1037	int i;	1063	int i;
1038		1064
1039	Newz (0, coro, 1, struct coro);	1065	Newz (0, coro, 1, struct coro);
1040	coro->args = newAV ();	1066	coro->args = newAV ();
		1067	coro->flags = CF_NEW;
1041		1068
1042	hv = newHV ();	1069	hv = newHV ();
1043	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1070	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1044	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1071	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1045		1072
1046	for (i = 1; i < items; i++)	1073	for (i = 1; i < items; i++)
1047	av_push (coro->args, newSVsv (ST (i)));	1074	av_push (coro->args, newSVsv (ST (i)));
1048
1049	/coro->mainstack = 0; //actual work is done inside transfer /
1050	/coro->stack = 0;/
1051	}	1075	}
1052	OUTPUT:	1076	OUTPUT:
1053	RETVAL	1077	RETVAL
1054		1078
1055	void	1079	void
1056	_set_stacklevel (...)	1080	_set_stacklevel (...)
1057	ALIAS:	1081	ALIAS:
1058	Coro::State::transfer = 1	1082	Coro::State::transfer = 1
1059	Coro::schedule = 2	1083	Coro::schedule = 2
1060	Coro::cede = 3	1084	Coro::cede = 3
1061	Coro::Cont::yield = 4
1062	CODE:	1085	CODE:
1063	{	1086	{
1064	struct transfer_args ta;	1087	struct transfer_args ta;
1065		1088
1066	switch (ix)	1089	switch (ix)
1067	{	1090	{
1068	case 0:	1091	case 0:
1069	ta.prev = (struct coro )INT2PTR (coro_stack , SvIV (ST (0)));	1092	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1070	ta.next = 0;	1093	ta.next = 0;
1071	ta.flags = TRANSFER_SET_STACKLEVEL;	1094	ta.flags = TRANSFER_SET_STACKLEVEL;
1072	break;	1095	break;
1073		1096
1074	case 1:	1097	case 1:
1075	if (items != 3)	1098	if (items != 3)
1076	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);	1099	croak ("Coro::State::transfer (prev,next,flags) expects three arguments, not %d", items);
1077		1100
1078	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));	1101	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));
1079	break;	1102	break;
1080		1103
1081	case 2:	1104	case 2:
…		…
1083	break;	1106	break;
1084		1107
1085	case 3:	1108	case 3:
1086	prepare_cede (&ta);	1109	prepare_cede (&ta);
1087	break;	1110	break;
1088
1089	case 4:
1090	{
1091	SV *yieldstack;
1092	SV *sv;
1093	AV *defav = GvAV (PL_defgv);
1094
1095	yieldstack = *hv_fetch (
1096	(HV *)SvRV (GvSV (coro_current)),
1097	"yieldstack", sizeof ("yieldstack") - 1,
1098	0
1099	);
1100
1101	/* set up @_ -- ugly */
1102	av_clear (defav);
1103	av_fill (defav, items - 1);
1104	while (items--)
1105	av_store (defav, items, SvREFCNT_inc (ST(items)));
1106
1107	sv = av_pop ((AV *)SvRV (yieldstack));
1108	ta.prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
1109	ta.next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
1110	ta.flags = 0;
1111	SvREFCNT_dec (sv);
1112	}
1113	break;
1114
1115	}	1111	}
1116		1112
1117	TRANSFER (ta);	1113	TRANSFER (ta);
1118	}	1114	}
1119		1115
…		…
1134	int code	1130	int code
1135	PROTOTYPE: $	1131	PROTOTYPE: $
1136	CODE:	1132	CODE:
1137	_exit (code);	1133	_exit (code);
1138		1134
		1135	int
		1136	cctx_count ()
		1137	CODE:
		1138	RETVAL = cctx_count;
		1139	OUTPUT:
		1140	RETVAL
		1141
		1142	int
		1143	cctx_idle ()
		1144	CODE:
		1145	RETVAL = cctx_idle;
		1146	OUTPUT:
		1147	RETVAL
		1148
1139	MODULE = Coro::State PACKAGE = Coro	1149	MODULE = Coro::State PACKAGE = Coro
1140		1150
1141	BOOT:	1151	BOOT:
1142	{	1152	{
1143	int i;	1153	int i;
…		…
1149	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1159	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1150	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1160	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1151	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1161	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1152	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1162	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1153		1163
1154	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1164	coro_current = get_sv ("Coro::current", FALSE);
1155	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1165	SvREADONLY_on (coro_current);
1156		1166
1157	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1167	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1158	coro_ready[i] = newAV ();	1168	coro_ready[i] = newAV ();
1159		1169
1160	{	1170	{
1161	SV *sv = perl_get_sv("Coro::API", 1);	1171	SV *sv = perl_get_sv("Coro::API", 1);
1162		1172
1163	coroapi.schedule = api_schedule;	1173	coroapi.schedule = api_schedule;
1164	coroapi.cede = api_cede;	1174	coroapi.cede = api_cede;
1165	coroapi.ready = api_ready;	1175	coroapi.ready = api_ready;
		1176	coroapi.is_ready = api_is_ready;
1166	coroapi.nready = &coro_nready;	1177	coroapi.nready = &coro_nready;
1167	coroapi.current = coro_current;	1178	coroapi.current = coro_current;
1168		1179
1169	GCoroAPI = &coroapi;	1180	GCoroAPI = &coroapi;
1170	sv_setiv (sv, (IV)&coroapi);	1181	sv_setiv (sv, (IV)&coroapi);
…		…
1190		1201
1191	coro->prio = newprio;	1202	coro->prio = newprio;
1192	}	1203	}
1193	}	1204	}
1194		1205
1195	void	1206	SV *
1196	ready (SV *self)	1207	ready (SV *self)
1197	PROTOTYPE: $	1208	PROTOTYPE: $
1198	CODE:	1209	CODE:
1199	api_ready (self);	1210	RETVAL = boolSV (api_ready (self));
		1211	OUTPUT:
		1212	RETVAL
		1213
		1214	SV *
		1215	is_ready (SV *self)
		1216	PROTOTYPE: $
		1217	CODE:
		1218	RETVAL = boolSV (api_is_ready (self));
		1219	OUTPUT:
		1220	RETVAL
1200		1221
1201	int	1222	int
1202	nready (...)	1223	nready (...)
1203	PROTOTYPE:	1224	PROTOTYPE:
1204	CODE:	1225	CODE:
1205	RETVAL = coro_nready;	1226	RETVAL = coro_nready;
1206	OUTPUT:	1227	OUTPUT:
1207	RETVAL	1228	RETVAL
1208		1229
		1230	void
		1231	_set_current (SV *current)
		1232	PROTOTYPE: $
		1233	CODE:
		1234	SvREFCNT_dec (SvRV (coro_current));
		1235	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
		1236
1209	MODULE = Coro::State PACKAGE = Coro::AIO	1237	MODULE = Coro::State PACKAGE = Coro::AIO
1210		1238
1211	SV *	1239	SV *
1212	_get_state ()	1240	_get_state ()
1213	CODE:	1241	CODE:
1214	{	1242	{
1215	struct {	1243	RETVAL = newSV (sizeof (struct io_state));
1216	int errorno;	1244	struct io_state data = (struct io_state )SvPVX (RETVAL);
1217	int laststype;	1245	SvCUR_set (RETVAL, sizeof (struct io_state));
1218	int laststatval;	1246	SvPOK_only (RETVAL);
1219	Stat_t statcache;
1220	} data;
1221		1247
1222	data.errorno = errno;	1248	data->errorno = errno;
1223	data.laststype = PL_laststype;	1249	data->laststype = PL_laststype;
1224	data.laststatval = PL_laststatval;	1250	data->laststatval = PL_laststatval;
1225	data.statcache = PL_statcache;	1251	data->statcache = PL_statcache;
1226
1227	RETVAL = newSVpvn ((char *)&data, sizeof data);
1228	}	1252	}
1229	OUTPUT:	1253	OUTPUT:
1230	RETVAL	1254	RETVAL
1231		1255
1232	void	1256	void
1233	_set_state (char *data_)	1257	_set_state (char *data_)
1234	PROTOTYPE: $	1258	PROTOTYPE: $
1235	CODE:	1259	CODE:
1236	{	1260	{
1237	struct {	1261	struct io_state data = (void )data_;
1238	int errorno;
1239	int laststype;
1240	int laststatval;
1241	Stat_t statcache;
1242	} data = (void )data_;
1243		1262
1244	errno = data->errorno;	1263	errno = data->errorno;
1245	PL_laststype = data->laststype;	1264	PL_laststype = data->laststype;
1246	PL_laststatval = data->laststatval;	1265	PL_laststatval = data->laststatval;
1247	PL_statcache = data->statcache;	1266	PL_statcache = data->statcache;
1248	}	1267	}
		1268

Diff Legend

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

Comparing Coro/Coro/State.xs (file contents): Revision 1.100 by root, Mon Nov 27 00:07:49 2006 UTC vs. Revision 1.120 by root, Sat Dec 2 18:01:30 2006 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.100 by root, Mon Nov 27 00:07:49 2006 UTC vs.
Revision 1.120 by root, Sat Dec 2 18:01:30 2006 UTC