[ViewVC] Diff of: cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.44 by root, Sat Oct 21 23:20:29 2006 UTC vs.
Revision 1.63 by root, Mon Oct 23 23:48:31 2006 UTC

…		…
		1	#if __linux
		2	# define _GNU_SOURCE
		3	#endif
		4
1	#define _REENTRANT 1	5	#define _REENTRANT 1
		6
2	#include <errno.h>	7	#include <errno.h>
3		8
4	#include "EXTERN.h"	9	#include "EXTERN.h"
5	#include "perl.h"	10	#include "perl.h"
6	#include "XSUB.h"	11	#include "XSUB.h"
9		14
10	#include <pthread.h>	15	#include <pthread.h>
11		16
12	#include <stddef.h>	17	#include <stddef.h>
13	#include <errno.h>	18	#include <errno.h>
		19	#include <sys/time.h>
		20	#include <sys/select.h>
14	#include <sys/types.h>	21	#include <sys/types.h>
15	#include <sys/stat.h>	22	#include <sys/stat.h>
16	#include <limits.h>	23	#include <limits.h>
17	#include <unistd.h>	24	#include <unistd.h>
18	#include <fcntl.h>	25	#include <fcntl.h>
…		…
53	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	60	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
54	REQ_FSYNC, REQ_FDATASYNC,	61	REQ_FSYNC, REQ_FDATASYNC,
55	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	62	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
56	REQ_READDIR,	63	REQ_READDIR,
57	REQ_LINK, REQ_SYMLINK,	64	REQ_LINK, REQ_SYMLINK,
58	REQ_GROUP,	65	REQ_GROUP, REQ_NOP,
		66	REQ_SLEEP,
59	};	67	};
60		68
61	#define AIO_REQ_KLASS "IO::AIO::REQ"	69	#define AIO_REQ_KLASS "IO::AIO::REQ"
62	#define AIO_GRP_KLASS "IO::AIO::GRP"	70	#define AIO_GRP_KLASS "IO::AIO::GRP"
63		71
64	typedef struct aio_cb	72	typedef struct aio_cb
65	{	73	{
66	struct aio_cb grp, grp_prev, *grp_next;
67
68	struct aio_cb *volatile next;	74	struct aio_cb *volatile next;
69
70	SV self; / the perl counterpart of this request, if any */
71		75
72	SV data, callback;	76	SV data, callback;
73	SV fh, fh2;	77	SV fh, fh2;
74	void dataptr, data2ptr;	78	void dataptr, data2ptr;
75	Stat_t *statdata;	79	Stat_t *statdata;
76	off_t offset;	80	off_t offset;
77	size_t length;	81	size_t length;
78	ssize_t result;	82	ssize_t result;
79		83
		84	STRLEN dataoffset;
80	int type;	85	int type;
81	int fd, fd2;	86	int fd, fd2;
82	int errorno;	87	int errorno;
83	STRLEN dataoffset;
84	mode_t mode; /* open */	88	mode_t mode; /* open */
		89
85	unsigned char cancelled;	90	unsigned char flags;
		91	unsigned char pri;
		92
		93	SV self; / the perl counterpart of this request, if any */
		94	struct aio_cb grp, grp_prev, grp_next, grp_first;
86	} aio_cb;	95	} aio_cb;
		96
		97	enum {
		98	FLAG_CANCELLED = 0x01,
		99	};
87		100
88	typedef aio_cb *aio_req;	101	typedef aio_cb *aio_req;
89	typedef aio_cb *aio_req_ornot;	102	typedef aio_cb *aio_req_ornot;
90	typedef aio_cb *aio_group;	103
		104	enum {
		105	PRI_MIN = -4,
		106	PRI_MAX = 4,
		107
		108	DEFAULT_PRI = 0,
		109	PRI_BIAS = -PRI_MIN,
		110	};
		111
		112	static int next_pri = DEFAULT_PRI + PRI_BIAS;
91		113
92	static int started, wanted;	114	static int started, wanted;
93	static volatile int nreqs;	115	static volatile int nreqs;
94	static int max_outstanding = 1<<30;	116	static int max_outstanding = 1<<30;
95	static int respipe [2];	117	static int respipe [2];
96		118
		119	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
		120	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
		121	#else
		122	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
		123	#endif
		124
97	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	125	static pthread_mutex_t reslock = AIO_MUTEX_INIT;
98	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	126	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
99	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	127	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
100		128
101	static volatile aio_req reqs, reqe; /* queue start, queue end */	129	static volatile aio_req reqs, reqe; /* queue start, queue end */
102	static volatile aio_req ress, rese; /* queue start, queue end */	130	static volatile aio_req ress, rese; /* queue start, queue end */
103		131
		132	static void req_invoke (aio_req req);
		133	static void req_free (aio_req req);
		134
104	/* must be called at most once */	135	/* must be called at most once */
105	static SV req_sv (aio_req req, const char klass)	136	static SV req_sv (aio_req req, const char klass)
106	{	137	{
		138	if (!req->self)
		139	{
107	req->self = (SV *)newHV ();	140	req->self = (SV *)newHV ();
108	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	141	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		142	}
109		143
110	return sv_2mortal (sv_bless (newRV_noinc (req->self), gv_stashpv (klass, 1)));	144	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
111	}	145	}
112		146
113	static aio_req SvAIO_REQ (SV sv, const char klass)	147	static aio_req SvAIO_REQ (SV *sv)
114	{	148	{
		149	MAGIC *mg;
		150
115	if (!sv_derived_from (sv, klass) \|\| !SvROK (sv))	151	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
116	croak ("object of class %s expected", klass);	152	croak ("object of class " AIO_REQ_KLASS " expected");
117		153
118	MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	154	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
119		155
120	return mg ? (aio_req)mg->mg_ptr : 0;	156	return mg ? (aio_req)mg->mg_ptr : 0;
121	}	157	}
122		158
		159	static void aio_grp_feed (aio_req grp)
		160	{
		161	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
		162	{
		163	int old_len = grp->length;
		164
		165	if (grp->fh2 && SvOK (grp->fh2))
		166	{
		167	dSP;
		168
		169	ENTER;
		170	SAVETMPS;
		171	PUSHMARK (SP);
		172	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		173	PUTBACK;
		174	call_sv (grp->fh2, G_VOID \| G_EVAL);
		175	SPAGAIN;
		176	FREETMPS;
		177	LEAVE;
		178	}
		179
		180	/* stop if no progress has been made */
		181	if (old_len == grp->length)
		182	{
		183	SvREFCNT_dec (grp->fh2);
		184	grp->fh2 = 0;
		185	break;
		186	}
		187	}
		188	}
		189
		190	static void aio_grp_dec (aio_req grp)
		191	{
		192	--grp->length;
		193
		194	/* call feeder, if applicable */
		195	aio_grp_feed (grp);
		196
		197	/* finish, if done */
		198	if (!grp->length && grp->fd)
		199	{
		200	req_invoke (grp);
		201	req_free (grp);
		202	}
		203	}
		204
		205	static void poll_wait ()
		206	{
		207	fd_set rfd;
		208
		209	while (nreqs)
		210	{
		211	aio_req req;
		212	pthread_mutex_lock (&reslock);
		213	req = ress;
		214	pthread_mutex_unlock (&reslock);
		215
		216	if (req)
		217	return;
		218
		219	FD_ZERO(&rfd);
		220	FD_SET(respipe [0], &rfd);
		221
		222	select (respipe [0] + 1, &rfd, 0, 0, 0);
		223	}
		224	}
		225
		226	static void req_invoke (aio_req req)
		227	{
		228	dSP;
		229	int errorno = errno;
		230
		231	if (req->flags & FLAG_CANCELLED \|\| !SvOK (req->callback))
		232	return;
		233
		234	errno = req->errorno;
		235
		236	ENTER;
		237	SAVETMPS;
		238	PUSHMARK (SP);
		239	EXTEND (SP, 1);
		240
		241	switch (req->type)
		242	{
		243	case REQ_READDIR:
		244	{
		245	SV *rv = &PL_sv_undef;
		246
		247	if (req->result >= 0)
		248	{
		249	char *buf = req->data2ptr;
		250	AV *av = newAV ();
		251
		252	while (req->result)
		253	{
		254	SV *sv = newSVpv (buf, 0);
		255
		256	av_push (av, sv);
		257	buf += SvCUR (sv) + 1;
		258	req->result--;
		259	}
		260
		261	rv = sv_2mortal (newRV_noinc ((SV *)av));
		262	}
		263
		264	PUSHs (rv);
		265	}
		266	break;
		267
		268	case REQ_OPEN:
		269	{
		270	/* convert fd to fh */
		271	SV *fh;
		272
		273	PUSHs (sv_2mortal (newSViv (req->result)));
		274	PUTBACK;
		275	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		276	SPAGAIN;
		277
		278	fh = SvREFCNT_inc (POPs);
		279
		280	PUSHMARK (SP);
		281	XPUSHs (sv_2mortal (fh));
		282	}
		283	break;
		284
		285	case REQ_GROUP:
		286	req->fd = 2; /* mark group as finished */
		287
		288	if (req->data)
		289	{
		290	int i;
		291	AV av = (AV )req->data;
		292
		293	EXTEND (SP, AvFILL (av) + 1);
		294	for (i = 0; i <= AvFILL (av); ++i)
		295	PUSHs (*av_fetch (av, i, 0));
		296	}
		297	break;
		298
		299	case REQ_NOP:
		300	case REQ_SLEEP:
		301	break;
		302
		303	default:
		304	PUSHs (sv_2mortal (newSViv (req->result)));
		305	break;
		306	}
		307
		308
		309	PUTBACK;
		310	call_sv (req->callback, G_VOID \| G_EVAL);
		311	SPAGAIN;
		312
		313	FREETMPS;
		314	LEAVE;
		315
		316	errno = errorno;
		317
		318	if (SvTRUE (ERRSV))
		319	{
		320	req_free (req);
		321	croak (0);
		322	}
		323	}
		324
123	static void req_free (aio_req req)	325	static void req_free (aio_req req)
124	{	326	{
		327	if (req->grp)
		328	{
		329	aio_req grp = req->grp;
		330
		331	/* unlink request */
		332	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		333	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		334
		335	if (grp->grp_first == req)
		336	grp->grp_first = req->grp_next;
		337
		338	aio_grp_dec (grp);
		339	}
		340
125	if (req->self)	341	if (req->self)
126	{	342	{
127	sv_unmagic (req->self, PERL_MAGIC_ext);	343	sv_unmagic (req->self, PERL_MAGIC_ext);
128	SvREFCNT_dec (req->self);	344	SvREFCNT_dec (req->self);
129	}	345	}
130		346
131	if (req->data)
132	SvREFCNT_dec (req->data);	347	SvREFCNT_dec (req->data);
133
134	if (req->fh)
135	SvREFCNT_dec (req->fh);	348	SvREFCNT_dec (req->fh);
136
137	if (req->fh2)
138	SvREFCNT_dec (req->fh2);	349	SvREFCNT_dec (req->fh2);
139
140	if (req->statdata)
141	Safefree (req->statdata);
142
143	if (req->callback)
144	SvREFCNT_dec (req->callback);	350	SvREFCNT_dec (req->callback);
		351	Safefree (req->statdata);
145		352
146	if (req->type == REQ_READDIR && req->result >= 0)	353	if (req->type == REQ_READDIR && req->result >= 0)
147	free (req->data2ptr);	354	free (req->data2ptr);
148		355
149	Safefree (req);	356	Safefree (req);
150	}	357	}
151		358
152	static void	359	static void req_cancel (aio_req req)
153	poll_wait ()
154	{	360	{
155	if (nreqs && !ress)	361	req->flags \|= FLAG_CANCELLED;
156	{
157	fd_set rfd;
158	FD_ZERO(&rfd);
159	FD_SET(respipe [0], &rfd);
160		362
161	select (respipe [0] + 1, &rfd, 0, 0, 0);	363	if (req->type == REQ_GROUP)
162	}	364	{
163	}	365	aio_req sub;
164		366
165	static int	367	for (sub = req->grp_first; sub; sub = sub->grp_next)
166	poll_cb ()	368	req_cancel (sub);
		369	}
		370	}
		371
		372	static int poll_cb ()
167	{	373	{
168	dSP;	374	dSP;
169	int count = 0;	375	int count = 0;
170	int do_croak = 0;	376	int do_croak = 0;
171	aio_req req;	377	aio_req req;
…		…
193	pthread_mutex_unlock (&reslock);	399	pthread_mutex_unlock (&reslock);
194		400
195	if (!req)	401	if (!req)
196	break;	402	break;
197		403
198	nreqs--;	404	--nreqs;
199		405
200	if (req->type == REQ_QUIT)	406	if (req->type == REQ_QUIT)
201	started--;	407	started--;
		408	else if (req->type == REQ_GROUP && req->length)
		409	{
		410	req->fd = 1; /* mark request as delayed */
		411	continue;
		412	}
202	else	413	else
203	{	414	{
204	int errorno = errno;
205	errno = req->errorno;
206
207	if (req->type == REQ_READ)	415	if (req->type == REQ_READ)
208	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	416	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
209		417
210	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	418	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
211	SvREADONLY_off (req->data);	419	SvREADONLY_off (req->data);
…		…
215	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	423	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
216	PL_laststatval = req->result;	424	PL_laststatval = req->result;
217	PL_statcache = *(req->statdata);	425	PL_statcache = *(req->statdata);
218	}	426	}
219		427
220	ENTER;	428	req_invoke (req);
221	PUSHMARK (SP);
222		429
223	if (req->type == REQ_READDIR)
224	{
225	SV *rv = &PL_sv_undef;
226
227	if (req->result >= 0)
228	{
229	char *buf = req->data2ptr;
230	AV *av = newAV ();
231
232	while (req->result)
233	{
234	SV *sv = newSVpv (buf, 0);
235
236	av_push (av, sv);
237	buf += SvCUR (sv) + 1;
238	req->result--;
239	}
240
241	rv = sv_2mortal (newRV_noinc ((SV *)av));
242	}
243
244	XPUSHs (rv);
245	}
246	else
247	{
248	XPUSHs (sv_2mortal (newSViv (req->result)));
249
250	if (req->type == REQ_OPEN)
251	{
252	/* convert fd to fh */
253	SV *fh;
254
255	PUTBACK;
256	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
257	SPAGAIN;
258
259	fh = SvREFCNT_inc (POPs);
260
261	PUSHMARK (SP);
262	XPUSHs (sv_2mortal (fh));
263	}
264	}
265
266	if (SvOK (req->callback) && !req->cancelled)
267	{
268	PUTBACK;
269	call_sv (req->callback, G_VOID \| G_EVAL);
270	SPAGAIN;
271
272	if (SvTRUE (ERRSV))
273	{
274	req_free (req);
275	croak (0);
276	}
277	}
278
279	LEAVE;
280
281	errno = errorno;
282	count++;	430	count++;
283	}	431	}
284		432
285	req_free (req);	433	req_free (req);
286	}	434	}
…		…
288	return count;	436	return count;
289	}	437	}
290		438
291	static void aio_proc(void arg);	439	static void aio_proc(void arg);
292		440
293	static void
294	start_thread (void)	441	static void start_thread (void)
295	{	442	{
296	sigset_t fullsigset, oldsigset;	443	sigset_t fullsigset, oldsigset;
297	pthread_t tid;	444	pthread_t tid;
298	pthread_attr_t attr;	445	pthread_attr_t attr;
299		446
…		…
308	started++;	455	started++;
309		456
310	sigprocmask (SIG_SETMASK, &oldsigset, 0);	457	sigprocmask (SIG_SETMASK, &oldsigset, 0);
311	}	458	}
312		459
313	static void
314	req_send (aio_req req)	460	static void req_send (aio_req req)
315	{	461	{
316	while (started < wanted && nreqs >= started)	462	while (started < wanted && nreqs >= started)
317	start_thread ();	463	start_thread ();
318		464
319	nreqs++;	465	++nreqs;
320		466
321	pthread_mutex_lock (&reqlock);	467	pthread_mutex_lock (&reqlock);
322		468
323	req->next = 0;	469	req->next = 0;
324		470
…		…
343		489
344	poll_wait ();	490	poll_wait ();
345	}	491	}
346	}	492	}
347		493
348	static void	494	static void end_thread (void)
349	end_thread (void)
350	{	495	{
351	aio_req req;	496	aio_req req;
352	Newz (0, req, 1, aio_cb);	497	Newz (0, req, 1, aio_cb);
353	req->type = REQ_QUIT;	498	req->type = REQ_QUIT;
354		499
…		…
405	* normal read/write by using a mutex. slows down execution a lot,	550	* normal read/write by using a mutex. slows down execution a lot,
406	* but that's your problem, not mine.	551	* but that's your problem, not mine.
407	*/	552	*/
408	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	553	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
409		554
410	static ssize_t	555	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
411	pread (int fd, void *buf, size_t count, off_t offset)
412	{	556	{
413	ssize_t res;	557	ssize_t res;
414	off_t ooffset;	558	off_t ooffset;
415		559
416	pthread_mutex_lock (&preadwritelock);	560	pthread_mutex_lock (&preadwritelock);
…		…
421	pthread_mutex_unlock (&preadwritelock);	565	pthread_mutex_unlock (&preadwritelock);
422		566
423	return res;	567	return res;
424	}	568	}
425		569
426	static ssize_t
427	pwrite (int fd, void *buf, size_t count, off_t offset)	570	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
428	{	571	{
429	ssize_t res;	572	ssize_t res;
430	off_t ooffset;	573	off_t ooffset;
431		574
432	pthread_mutex_lock (&preadwritelock);	575	pthread_mutex_lock (&preadwritelock);
…		…
445	#endif	588	#endif
446		589
447	#if !HAVE_READAHEAD	590	#if !HAVE_READAHEAD
448	# define readahead aio_readahead	591	# define readahead aio_readahead
449		592
450	static ssize_t
451	readahead (int fd, off_t offset, size_t count)	593	static ssize_t readahead (int fd, off_t offset, size_t count)
452	{	594	{
453	char readahead_buf[4096];	595	char readahead_buf[4096];
454		596
455	while (count > 0)	597	while (count > 0)
456	{	598	{
…		…
468	#if !HAVE_READDIR_R	610	#if !HAVE_READDIR_R
469	# define readdir_r aio_readdir_r	611	# define readdir_r aio_readdir_r
470		612
471	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	613	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
472		614
473	static int
474	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	615	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
475	{	616	{
476	struct dirent *e;	617	struct dirent *e;
477	int errorno;	618	int errorno;
478		619
479	pthread_mutex_lock (&readdirlock);	620	pthread_mutex_lock (&readdirlock);
…		…
495	return e ? 0 : -1;	636	return e ? 0 : -1;
496	}	637	}
497	#endif	638	#endif
498		639
499	/* sendfile always needs emulation */	640	/* sendfile always needs emulation */
500	static ssize_t
501	sendfile_ (int ofd, int ifd, off_t offset, size_t count)	641	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
502	{	642	{
503	ssize_t res;	643	ssize_t res;
504		644
505	if (!count)	645	if (!count)
506	return 0;	646	return 0;
…		…
588		728
589	return res;	729	return res;
590	}	730	}
591		731
592	/* read a full directory */	732	/* read a full directory */
593	static int
594	scandir_ (const char path, void *namesp)	733	static int scandir_ (const char path, void *namesp)
595	{	734	{
596	DIR *dirp = opendir (path);	735	DIR *dirp = opendir (path);
597	union	736	union
598	{	737	{
599	struct dirent d;	738	struct dirent d;
…		…
653	return res;	792	return res;
654	}	793	}
655		794
656	/*****************************************************************************/	795	/*****************************************************************************/
657		796
658	static void *
659	aio_proc (void *thr_arg)	797	static void aio_proc (void thr_arg)
660	{	798	{
661	aio_req req;	799	aio_req req;
662	int type;	800	int type;
663		801
664	do	802	do
…		…
682	}	820	}
683		821
684	pthread_mutex_unlock (&reqlock);	822	pthread_mutex_unlock (&reqlock);
685		823
686	errno = 0; /* strictly unnecessary */	824	errno = 0; /* strictly unnecessary */
		825	type = req->type; /* remember type for QUIT check */
687		826
688	if (!req->cancelled)	827	if (!(req->flags & FLAG_CANCELLED))
689	switch (req->type)	828	switch (type)
690	{	829	{
691	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	830	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
692	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	831	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
693		832
694	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	833	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
…		…
708		847
709	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	848	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
710	case REQ_FSYNC: req->result = fsync (req->fd); break;	849	case REQ_FSYNC: req->result = fsync (req->fd); break;
711	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	850	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
712		851
		852	case REQ_SLEEP:
		853	{
		854	struct timeval tv;
		855
		856	tv.tv_sec = req->fd;
		857	tv.tv_usec = req->fd2;
		858
		859	req->result = select (0, 0, 0, 0, &tv);
		860	}
		861
		862	case REQ_GROUP:
		863	case REQ_NOP:
713	case REQ_QUIT:	864	case REQ_QUIT:
714	break;	865	break;
715		866
716	default:	867	default:
717	req->result = ENOSYS;	868	req->result = ENOSYS;
…		…
801	atfork_parent ();	952	atfork_parent ();
802	}	953	}
803		954
804	#define dREQ \	955	#define dREQ \
805	aio_req req; \	956	aio_req req; \
		957	int req_pri = next_pri; \
		958	next_pri = DEFAULT_PRI + PRI_BIAS; \
806	\	959	\
807	if (SvOK (callback) && !SvROK (callback)) \	960	if (SvOK (callback) && !SvROK (callback)) \
808	croak ("callback must be undef or of reference type"); \	961	croak ("callback must be undef or of reference type"); \
809	\	962	\
810	Newz (0, req, 1, aio_cb); \	963	Newz (0, req, 1, aio_cb); \
811	if (!req) \	964	if (!req) \
812	croak ("out of memory during aio_req allocation"); \	965	croak ("out of memory during aio_req allocation"); \
813	\	966	\
814	req->callback = newSVsv (callback)	967	req->callback = newSVsv (callback); \
		968	req->pri = req_pri
815		969
816	#define REQ_SEND \	970	#define REQ_SEND \
817	req_send (req); \	971	req_send (req); \
818	\	972	\
819	if (GIMME_V != G_VOID) \	973	if (GIMME_V != G_VOID) \
…		…
1073		1227
1074	REQ_SEND;	1228	REQ_SEND;
1075	}	1229	}
1076		1230
1077	void	1231	void
		1232	aio_sleep (delay,callback=&PL_sv_undef)
		1233	double delay
		1234	SV * callback
		1235	PPCODE:
		1236	{
		1237	dREQ;
		1238
		1239	req->type = REQ_SLEEP;
		1240	req->fd = delay < 0. ? 0 : delay;
		1241	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
		1242
		1243	REQ_SEND;
		1244	}
		1245
		1246	void
1078	aio_group (callback=&PL_sv_undef)	1247	aio_group (callback=&PL_sv_undef)
1079	SV * callback	1248	SV * callback
1080	PROTOTYPE: ;&	1249	PROTOTYPE: ;$
1081	PPCODE:	1250	PPCODE:
1082	{	1251	{
1083	dREQ;	1252	dREQ;
		1253
1084	req->type = REQ_GROUP;	1254	req->type = REQ_GROUP;
		1255	req_send (req);
		1256
1085	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1257	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1086	}	1258	}
		1259
		1260	void
		1261	aio_nop (callback=&PL_sv_undef)
		1262	SV * callback
		1263	PPCODE:
		1264	{
		1265	dREQ;
		1266
		1267	req->type = REQ_NOP;
		1268
		1269	REQ_SEND;
		1270	}
		1271
		1272	#if 0
		1273
		1274	void
		1275	aio_pri (int pri = DEFAULT_PRI)
		1276	CODE:
		1277	if (pri < PRI_MIN) pri = PRI_MIN;
		1278	if (pri > PRI_MAX) pri = PRI_MAX;
		1279	next_pri = pri + PRI_BIAS;
		1280
		1281	#endif
1087		1282
1088	void	1283	void
1089	flush ()	1284	flush ()
1090	PROTOTYPE:	1285	PROTOTYPE:
1091	CODE:	1286	CODE:
…		…
1134	CODE:	1329	CODE:
1135	RETVAL = nreqs;	1330	RETVAL = nreqs;
1136	OUTPUT:	1331	OUTPUT:
1137	RETVAL	1332	RETVAL
1138		1333
		1334	PROTOTYPES: DISABLE
		1335
1139	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1336	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1140		1337
1141	void	1338	void
1142	cancel (aio_req_ornot req)	1339	cancel (aio_req_ornot req)
1143	PROTOTYPE:	1340	PROTOTYPE:
1144	CODE:	1341	CODE:
1145	req->cancelled = 1;	1342	req_cancel (req);
1146		1343
		1344	void
		1345	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1346	CODE:
		1347	SvREFCNT_dec (req->callback);
		1348	req->callback = newSVsv (callback);
		1349
		1350	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
		1351
		1352	void
		1353	add (aio_req grp, ...)
		1354	PPCODE:
		1355	{
		1356	int i;
		1357	aio_req req;
		1358
		1359	if (grp->fd == 2)
		1360	croak ("cannot add requests to IO::AIO::GRP after the group finished");
		1361
		1362	for (i = 1; i < items; ++i )
		1363	{
		1364	if (GIMME_V != G_VOID)
		1365	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1366
		1367	req = SvAIO_REQ (ST (i));
		1368
		1369	if (req)
		1370	{
		1371	++grp->length;
		1372	req->grp = grp;
		1373
		1374	req->grp_prev = 0;
		1375	req->grp_next = grp->grp_first;
		1376
		1377	if (grp->grp_first)
		1378	grp->grp_first->grp_prev = req;
		1379
		1380	grp->grp_first = req;
		1381	}
		1382	}
		1383	}
		1384
		1385	void
		1386	result (aio_req grp, ...)
		1387	CODE:
		1388	{
		1389	int i;
		1390	AV *av = newAV ();
		1391
		1392	for (i = 1; i < items; ++i )
		1393	av_push (av, newSVsv (ST (i)));
		1394
		1395	SvREFCNT_dec (grp->data);
		1396	grp->data = (SV *)av;
		1397	}
		1398
		1399	void
		1400	feed_limit (aio_req grp, int limit)
		1401	CODE:
		1402	grp->fd2 = limit;
		1403	aio_grp_feed (grp);
		1404
		1405	void
		1406	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1407	CODE:
		1408	{
		1409	SvREFCNT_dec (grp->fh2);
		1410	grp->fh2 = newSVsv (callback);
		1411
		1412	if (grp->fd2 <= 0)
		1413	grp->fd2 = 2;
		1414
		1415	aio_grp_feed (grp);
		1416	}
		1417

Diff Legend

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

Comparing IO-AIO/AIO.xs (file contents): Revision 1.44 by root, Sat Oct 21 23:20:29 2006 UTC vs. Revision 1.63 by root, Mon Oct 23 23:48:31 2006 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.44 by root, Sat Oct 21 23:20:29 2006 UTC vs.
Revision 1.63 by root, Mon Oct 23 23:48:31 2006 UTC