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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.42 by root, Fri Jul 21 07:35:31 2006 UTC vs.
Revision 1.61 by root, Mon Oct 23 22:44:21 2006 UTC

…		…
9		9
10	#include <pthread.h>	10	#include <pthread.h>
11		11
12	#include <stddef.h>	12	#include <stddef.h>
13	#include <errno.h>	13	#include <errno.h>
		14	#include <sys/time.h>
		15	#include <sys/select.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
15	#include <sys/stat.h>	17	#include <sys/stat.h>
16	#include <limits.h>	18	#include <limits.h>
17	#include <unistd.h>	19	#include <unistd.h>
18	#include <fcntl.h>	20	#include <fcntl.h>
…		…
53	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	55	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
54	REQ_FSYNC, REQ_FDATASYNC,	56	REQ_FSYNC, REQ_FDATASYNC,
55	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
56	REQ_READDIR,	58	REQ_READDIR,
57	REQ_LINK, REQ_SYMLINK,	59	REQ_LINK, REQ_SYMLINK,
		60	REQ_GROUP, REQ_NOP,
		61	REQ_SLEEP,
58	};	62	};
59		63
		64	#define AIO_REQ_KLASS "IO::AIO::REQ"
		65	#define AIO_GRP_KLASS "IO::AIO::GRP"
		66
60	typedef struct aio_cb {	67	typedef struct aio_cb
		68	{
61	struct aio_cb *volatile next;	69	struct aio_cb *volatile next;
62		70
63	int type;	71	SV data, callback;
64		72	SV fh, fh2;
65	/* should receive a cleanup, with unions */	73	void dataptr, data2ptr;
66	int fd, fd2;	74	Stat_t *statdata;
67	off_t offset;	75	off_t offset;
68	size_t length;	76	size_t length;
69	ssize_t result;	77	ssize_t result;
		78
		79	STRLEN dataoffset;
		80	int type;
		81	int fd, fd2;
		82	int errorno;
70	mode_t mode; /* open */	83	mode_t mode; /* open */
71	int errorno;
72	SV data, callback;
73	SV fh, fh2;
74	void dataptr, data2ptr;
75	STRLEN dataoffset;
76		84
77	Stat_t *statdata;	85	unsigned char flags;
		86	unsigned char pri;
		87
		88	SV self; / the perl counterpart of this request, if any */
		89	struct aio_cb grp, grp_prev, grp_next, grp_first;
78	} aio_cb;	90	} aio_cb;
79		91
		92	enum {
		93	FLAG_CANCELLED = 0x01,
		94	};
		95
80	typedef aio_cb *aio_req;	96	typedef aio_cb *aio_req;
		97	typedef aio_cb *aio_req_ornot;
		98
		99	enum {
		100	PRI_MIN = -4,
		101	PRI_MAX = 4,
		102
		103	DEFAULT_PRI = 0,
		104	PRI_BIAS = -PRI_MIN,
		105	};
		106
		107	static int next_pri = DEFAULT_PRI + PRI_BIAS;
81		108
82	static int started, wanted;	109	static int started, wanted;
83	static volatile int nreqs;	110	static volatile int nreqs;
84	static int max_outstanding = 1<<30;	111	static int max_outstanding = 1<<30;
85	static int respipe [2];	112	static int respipe [2];
…		…
89	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	116	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
90		117
91	static volatile aio_req reqs, reqe; /* queue start, queue end */	118	static volatile aio_req reqs, reqe; /* queue start, queue end */
92	static volatile aio_req ress, rese; /* queue start, queue end */	119	static volatile aio_req ress, rese; /* queue start, queue end */
93		120
		121	static void req_invoke (aio_req req);
94	static void free_req (aio_req req)	122	static void req_free (aio_req req);
95	{
96	if (req->data)
97	SvREFCNT_dec (req->data);
98		123
		124	/* must be called at most once */
		125	static SV req_sv (aio_req req, const char klass)
		126	{
99	if (req->fh)	127	if (!req->self)
100	SvREFCNT_dec (req->fh);	128	{
		129	req->self = (SV *)newHV ();
		130	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		131	}
101		132
102	if (req->fh2)	133	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
		134	}
		135
		136	static aio_req SvAIO_REQ (SV *sv)
		137	{
		138	MAGIC *mg;
		139
		140	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
		141	croak ("object of class " AIO_REQ_KLASS " expected");
		142
		143	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
		144
		145	return mg ? (aio_req)mg->mg_ptr : 0;
		146	}
		147
		148	static void aio_grp_feed (aio_req grp)
		149	{
		150	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
		151	{
		152	int old_len = grp->length;
		153
		154	if (grp->fh2 && SvOK (grp->fh2))
		155	{
		156	dSP;
		157
		158	ENTER;
		159	SAVETMPS;
		160	PUSHMARK (SP);
		161	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		162	PUTBACK;
		163	call_sv (grp->fh2, G_VOID \| G_EVAL);
		164	SPAGAIN;
		165	FREETMPS;
		166	LEAVE;
		167	}
		168
		169	/* stop if no progress has been made */
		170	if (old_len == grp->length)
		171	{
103	SvREFCNT_dec (req->fh2);	172	SvREFCNT_dec (grp->fh2);
104		173	grp->fh2 = 0;
105	if (req->statdata)	174	break;
106	Safefree (req->statdata);	175	}
107
108	if (req->callback)
109	SvREFCNT_dec (req->callback);
110
111	if (req->type == REQ_READDIR && req->result >= 0)
112	free (req->data2ptr);
113
114	Safefree (req);
115	}
116
117	static void
118	poll_wait ()
119	{
120	if (nreqs && !ress)
121	{	176	}
		177	}
		178
		179	static void aio_grp_dec (aio_req grp)
		180	{
		181	--grp->length;
		182
		183	/* call feeder, if applicable */
		184	aio_grp_feed (grp);
		185
		186	/* finish, if done */
		187	if (!grp->length && grp->fd)
		188	{
		189	req_invoke (grp);
		190	req_free (grp);
		191	}
		192	}
		193
		194	static void poll_wait ()
		195	{
		196	while (nreqs)
		197	{
		198	aio_req req;
		199	pthread_mutex_lock (&reslock);
		200	req = ress;
		201	pthread_mutex_unlock (&reslock);
		202
		203	if (req)
		204	return;
		205
122	fd_set rfd;	206	fd_set rfd;
123	FD_ZERO(&rfd);	207	FD_ZERO(&rfd);
124	FD_SET(respipe [0], &rfd);	208	FD_SET(respipe [0], &rfd);
125		209
126	select (respipe [0] + 1, &rfd, 0, 0, 0);	210	select (respipe [0] + 1, &rfd, 0, 0, 0);
127	}	211	}
128	}	212	}
129		213
130	static int	214	static void req_invoke (aio_req req)
131	poll_cb ()	215	{
		216	dSP;
		217	int errorno = errno;
		218
		219	if (req->flags & FLAG_CANCELLED \|\| !SvOK (req->callback))
		220	return;
		221
		222	errno = req->errorno;
		223
		224	ENTER;
		225	SAVETMPS;
		226	PUSHMARK (SP);
		227	EXTEND (SP, 1);
		228
		229	switch (req->type)
		230	{
		231	case REQ_READDIR:
		232	{
		233	SV *rv = &PL_sv_undef;
		234
		235	if (req->result >= 0)
		236	{
		237	char *buf = req->data2ptr;
		238	AV *av = newAV ();
		239
		240	while (req->result)
		241	{
		242	SV *sv = newSVpv (buf, 0);
		243
		244	av_push (av, sv);
		245	buf += SvCUR (sv) + 1;
		246	req->result--;
		247	}
		248
		249	rv = sv_2mortal (newRV_noinc ((SV *)av));
		250	}
		251
		252	PUSHs (rv);
		253	}
		254	break;
		255
		256	case REQ_OPEN:
		257	{
		258	/* convert fd to fh */
		259	SV *fh;
		260
		261	PUSHs (sv_2mortal (newSViv (req->result)));
		262	PUTBACK;
		263	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		264	SPAGAIN;
		265
		266	fh = SvREFCNT_inc (POPs);
		267
		268	PUSHMARK (SP);
		269	XPUSHs (sv_2mortal (fh));
		270	}
		271	break;
		272
		273	case REQ_GROUP:
		274	req->fd = 2; /* mark group as finished */
		275
		276	if (req->data)
		277	{
		278	int i;
		279	AV av = (AV )req->data;
		280
		281	EXTEND (SP, AvFILL (av) + 1);
		282	for (i = 0; i <= AvFILL (av); ++i)
		283	PUSHs (*av_fetch (av, i, 0));
		284	}
		285	break;
		286
		287	case REQ_NOP:
		288	case REQ_SLEEP:
		289	break;
		290
		291	default:
		292	PUSHs (sv_2mortal (newSViv (req->result)));
		293	break;
		294	}
		295
		296
		297	PUTBACK;
		298	call_sv (req->callback, G_VOID \| G_EVAL);
		299	SPAGAIN;
		300
		301	FREETMPS;
		302	LEAVE;
		303
		304	errno = errorno;
		305
		306	if (SvTRUE (ERRSV))
		307	{
		308	req_free (req);
		309	croak (0);
		310	}
		311	}
		312
		313	static void req_free (aio_req req)
		314	{
		315	if (req->grp)
		316	{
		317	aio_req grp = req->grp;
		318
		319	/* unlink request */
		320	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		321	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		322
		323	if (grp->grp_first == req)
		324	grp->grp_first = req->grp_next;
		325
		326	aio_grp_dec (grp);
		327	}
		328
		329	if (req->self)
		330	{
		331	sv_unmagic (req->self, PERL_MAGIC_ext);
		332	SvREFCNT_dec (req->self);
		333	}
		334
		335	SvREFCNT_dec (req->data);
		336	SvREFCNT_dec (req->fh);
		337	SvREFCNT_dec (req->fh2);
		338	SvREFCNT_dec (req->callback);
		339	Safefree (req->statdata);
		340
		341	if (req->type == REQ_READDIR && req->result >= 0)
		342	free (req->data2ptr);
		343
		344	Safefree (req);
		345	}
		346
		347	static void req_cancel (aio_req req)
		348	{
		349	req->flags \|= FLAG_CANCELLED;
		350
		351	if (req->type == REQ_GROUP)
		352	{
		353	aio_req sub;
		354
		355	for (sub = req->grp_first; sub; sub = sub->grp_next)
		356	req_cancel (sub);
		357	}
		358	}
		359
		360	static int poll_cb ()
132	{	361	{
133	dSP;	362	dSP;
134	int count = 0;	363	int count = 0;
135	int do_croak = 0;	364	int do_croak = 0;
136	aio_req req;	365	aio_req req;
…		…
158	pthread_mutex_unlock (&reslock);	387	pthread_mutex_unlock (&reslock);
159		388
160	if (!req)	389	if (!req)
161	break;	390	break;
162		391
163	nreqs--;	392	--nreqs;
164		393
165	if (req->type == REQ_QUIT)	394	if (req->type == REQ_QUIT)
166	started--;	395	started--;
		396	else if (req->type == REQ_GROUP && req->length)
		397	{
		398	req->fd = 1; /* mark request as delayed */
		399	continue;
		400	}
167	else	401	else
168	{	402	{
169	int errorno = errno;
170	errno = req->errorno;
171
172	if (req->type == REQ_READ)	403	if (req->type == REQ_READ)
173	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	404	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
174		405
175	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	406	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
176	SvREADONLY_off (req->data);	407	SvREADONLY_off (req->data);
…		…
180	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	411	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
181	PL_laststatval = req->result;	412	PL_laststatval = req->result;
182	PL_statcache = *(req->statdata);	413	PL_statcache = *(req->statdata);
183	}	414	}
184		415
185	ENTER;	416	req_invoke (req);
186	PUSHMARK (SP);
187		417
188	if (req->type == REQ_READDIR)
189	{
190	SV *rv = &PL_sv_undef;
191
192	if (req->result >= 0)
193	{
194	char *buf = req->data2ptr;
195	AV *av = newAV ();
196
197	while (req->result)
198	{
199	SV *sv = newSVpv (buf, 0);
200
201	av_push (av, sv);
202	buf += SvCUR (sv) + 1;
203	req->result--;
204	}
205
206	rv = sv_2mortal (newRV_noinc ((SV *)av));
207	}
208
209	XPUSHs (rv);
210	}
211	else
212	{
213	XPUSHs (sv_2mortal (newSViv (req->result)));
214
215	if (req->type == REQ_OPEN)
216	{
217	/* convert fd to fh */
218	SV *fh;
219
220	PUTBACK;
221	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
222	SPAGAIN;
223
224	fh = SvREFCNT_inc (POPs);
225
226	PUSHMARK (SP);
227	XPUSHs (sv_2mortal (fh));
228	}
229	}
230
231	if (SvOK (req->callback))
232	{
233	PUTBACK;
234	call_sv (req->callback, G_VOID \| G_EVAL);
235	SPAGAIN;
236
237	if (SvTRUE (ERRSV))
238	{
239	free_req (req);
240	croak (0);
241	}
242	}
243
244	LEAVE;
245
246	errno = errorno;
247	count++;	418	count++;
248	}	419	}
249		420
250	free_req (req);	421	req_free (req);
251	}	422	}
252		423
253	return count;	424	return count;
254	}	425	}
255		426
256	static void aio_proc(void arg);	427	static void aio_proc(void arg);
257		428
258	static void
259	start_thread (void)	429	static void start_thread (void)
260	{	430	{
261	sigset_t fullsigset, oldsigset;	431	sigset_t fullsigset, oldsigset;
262	pthread_t tid;	432	pthread_t tid;
263	pthread_attr_t attr;	433	pthread_attr_t attr;
264		434
…		…
273	started++;	443	started++;
274		444
275	sigprocmask (SIG_SETMASK, &oldsigset, 0);	445	sigprocmask (SIG_SETMASK, &oldsigset, 0);
276	}	446	}
277		447
278	static void	448	static void req_send (aio_req req)
279	send_req (aio_req req)
280	{	449	{
281	while (started < wanted && nreqs >= started)	450	while (started < wanted && nreqs >= started)
282	start_thread ();	451	start_thread ();
283		452
284	nreqs++;	453	++nreqs;
285		454
286	pthread_mutex_lock (&reqlock);	455	pthread_mutex_lock (&reqlock);
287		456
288	req->next = 0;	457	req->next = 0;
289		458
…		…
308		477
309	poll_wait ();	478	poll_wait ();
310	}	479	}
311	}	480	}
312		481
313	static void	482	static void end_thread (void)
314	end_thread (void)
315	{	483	{
316	aio_req req;	484	aio_req req;
317	Newz (0, req, 1, aio_cb);	485	Newz (0, req, 1, aio_cb);
318	req->type = REQ_QUIT;	486	req->type = REQ_QUIT;
319		487
320	send_req (req);	488	req_send (req);
321	}	489	}
322		490
323	static void min_parallel (int nthreads)	491	static void min_parallel (int nthreads)
324	{	492	{
325	if (wanted < nthreads)	493	if (wanted < nthreads)
…		…
370	* normal read/write by using a mutex. slows down execution a lot,	538	* normal read/write by using a mutex. slows down execution a lot,
371	* but that's your problem, not mine.	539	* but that's your problem, not mine.
372	*/	540	*/
373	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	541	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
374		542
375	static ssize_t	543	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
376	pread (int fd, void *buf, size_t count, off_t offset)
377	{	544	{
378	ssize_t res;	545	ssize_t res;
379	off_t ooffset;	546	off_t ooffset;
380		547
381	pthread_mutex_lock (&preadwritelock);	548	pthread_mutex_lock (&preadwritelock);
…		…
386	pthread_mutex_unlock (&preadwritelock);	553	pthread_mutex_unlock (&preadwritelock);
387		554
388	return res;	555	return res;
389	}	556	}
390		557
391	static ssize_t
392	pwrite (int fd, void *buf, size_t count, off_t offset)	558	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
393	{	559	{
394	ssize_t res;	560	ssize_t res;
395	off_t ooffset;	561	off_t ooffset;
396		562
397	pthread_mutex_lock (&preadwritelock);	563	pthread_mutex_lock (&preadwritelock);
…		…
410	#endif	576	#endif
411		577
412	#if !HAVE_READAHEAD	578	#if !HAVE_READAHEAD
413	# define readahead aio_readahead	579	# define readahead aio_readahead
414		580
415	static ssize_t
416	readahead (int fd, off_t offset, size_t count)	581	static ssize_t readahead (int fd, off_t offset, size_t count)
417	{	582	{
418	char readahead_buf[4096];	583	char readahead_buf[4096];
419		584
420	while (count > 0)	585	while (count > 0)
421	{	586	{
…		…
433	#if !HAVE_READDIR_R	598	#if !HAVE_READDIR_R
434	# define readdir_r aio_readdir_r	599	# define readdir_r aio_readdir_r
435		600
436	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	601	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
437		602
438	static int
439	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	603	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
440	{	604	{
441	struct dirent *e;	605	struct dirent *e;
442	int errorno;	606	int errorno;
443		607
444	pthread_mutex_lock (&readdirlock);	608	pthread_mutex_lock (&readdirlock);
…		…
460	return e ? 0 : -1;	624	return e ? 0 : -1;
461	}	625	}
462	#endif	626	#endif
463		627
464	/* sendfile always needs emulation */	628	/* sendfile always needs emulation */
465	static ssize_t
466	sendfile_ (int ofd, int ifd, off_t offset, size_t count)	629	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
467	{	630	{
468	ssize_t res;	631	ssize_t res;
469		632
470	if (!count)	633	if (!count)
471	return 0;	634	return 0;
…		…
553		716
554	return res;	717	return res;
555	}	718	}
556		719
557	/* read a full directory */	720	/* read a full directory */
558	static int
559	scandir_ (const char path, void *namesp)	721	static int scandir_ (const char path, void *namesp)
560	{	722	{
561	DIR *dirp = opendir (path);	723	DIR *dirp = opendir (path);
562	union	724	union
563	{	725	{
564	struct dirent d;	726	struct dirent d;
…		…
618	return res;	780	return res;
619	}	781	}
620		782
621	/*****************************************************************************/	783	/*****************************************************************************/
622		784
623	static void *
624	aio_proc (void *thr_arg)	785	static void aio_proc (void thr_arg)
625	{	786	{
626	aio_req req;	787	aio_req req;
627	int type;	788	int type;
628		789
629	do	790	do
…		…
647	}	808	}
648		809
649	pthread_mutex_unlock (&reqlock);	810	pthread_mutex_unlock (&reqlock);
650		811
651	errno = 0; /* strictly unnecessary */	812	errno = 0; /* strictly unnecessary */
		813	type = req->type; /* remember type for QUIT check */
652		814
653	type = req->type;	815	if (!(req->flags & FLAG_CANCELLED))
654
655	switch (type)	816	switch (type)
656	{	817	{
657	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	818	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
658	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	819	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
659		820
660	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	821	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
661	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;	822	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
662		823
663	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	824	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
664	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	825	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
665	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	826	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
666		827
667	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	828	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
668	case REQ_CLOSE: req->result = close (req->fd); break;	829	case REQ_CLOSE: req->result = close (req->fd); break;
669	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	830	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
670	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	831	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
671	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	832	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
672	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	833	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
673	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	834	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
674		835
675	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	836	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
676	case REQ_FSYNC: req->result = fsync (req->fd); break;	837	case REQ_FSYNC: req->result = fsync (req->fd); break;
677	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	838	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
678		839
		840	case REQ_SLEEP:
		841	{
		842	struct timeval tv;
		843
		844	tv.tv_sec = req->fd;
		845	tv.tv_usec = req->fd2;
		846
		847	req->result = select (0, 0, 0, 0, &tv);
		848	}
		849
		850	case REQ_GROUP:
		851	case REQ_NOP:
679	case REQ_QUIT:	852	case REQ_QUIT:
680	break;	853	break;
681		854
682	default:	855	default:
683	req->result = ENOSYS;	856	req->result = ENOSYS;
684	break;	857	break;
685	}	858	}
686		859
687	req->errorno = errno;	860	req->errorno = errno;
688		861
689	pthread_mutex_lock (&reslock);	862	pthread_mutex_lock (&reslock);
690		863
…		…
744		917
745	while (reqs)	918	while (reqs)
746	{	919	{
747	prv = reqs;	920	prv = reqs;
748	reqs = prv->next;	921	reqs = prv->next;
749	free_req (prv);	922	req_free (prv);
750	}	923	}
751		924
752	reqs = reqe = 0;	925	reqs = reqe = 0;
753		926
754	while (ress)	927	while (ress)
755	{	928	{
756	prv = ress;	929	prv = ress;
757	ress = prv->next;	930	ress = prv->next;
758	free_req (prv);	931	req_free (prv);
759	}	932	}
760		933
761	ress = rese = 0;	934	ress = rese = 0;
762		935
763	close (respipe [0]);	936	close (respipe [0]);
…		…
767	atfork_parent ();	940	atfork_parent ();
768	}	941	}
769		942
770	#define dREQ \	943	#define dREQ \
771	aio_req req; \	944	aio_req req; \
		945	int req_pri = next_pri; \
		946	next_pri = DEFAULT_PRI + PRI_BIAS; \
772	\	947	\
773	if (SvOK (callback) && !SvROK (callback)) \	948	if (SvOK (callback) && !SvROK (callback)) \
774	croak ("clalback must be undef or of reference type"); \	949	croak ("callback must be undef or of reference type"); \
775	\	950	\
776	Newz (0, req, 1, aio_cb); \	951	Newz (0, req, 1, aio_cb); \
777	if (!req) \	952	if (!req) \
778	croak ("out of memory during aio_req allocation"); \	953	croak ("out of memory during aio_req allocation"); \
779	\	954	\
780	req->callback = newSVsv (callback);	955	req->callback = newSVsv (callback); \
		956	req->pri = req_pri
		957
		958	#define REQ_SEND \
		959	req_send (req); \
		960	\
		961	if (GIMME_V != G_VOID) \
		962	XPUSHs (req_sv (req, AIO_REQ_KLASS));
781		963
782	MODULE = IO::AIO PACKAGE = IO::AIO	964	MODULE = IO::AIO PACKAGE = IO::AIO
783		965
784	PROTOTYPES: ENABLE	966	PROTOTYPES: ENABLE
785		967
…		…
817	SV * pathname	999	SV * pathname
818	int flags	1000	int flags
819	int mode	1001	int mode
820	SV * callback	1002	SV * callback
821	PROTOTYPE: $$$;$	1003	PROTOTYPE: $$$;$
822	CODE:	1004	PPCODE:
823	{	1005	{
824	dREQ;	1006	dREQ;
825		1007
826	req->type = REQ_OPEN;	1008	req->type = REQ_OPEN;
827	req->data = newSVsv (pathname);	1009	req->data = newSVsv (pathname);
828	req->dataptr = SvPVbyte_nolen (req->data);	1010	req->dataptr = SvPVbyte_nolen (req->data);
829	req->fd = flags;	1011	req->fd = flags;
830	req->mode = mode;	1012	req->mode = mode;
831		1013
832	send_req (req);	1014	REQ_SEND;
833	}	1015	}
834		1016
835	void	1017	void
836	aio_close (fh,callback=&PL_sv_undef)	1018	aio_close (fh,callback=&PL_sv_undef)
837	SV * fh	1019	SV * fh
…		…
839	PROTOTYPE: $;$	1021	PROTOTYPE: $;$
840	ALIAS:	1022	ALIAS:
841	aio_close = REQ_CLOSE	1023	aio_close = REQ_CLOSE
842	aio_fsync = REQ_FSYNC	1024	aio_fsync = REQ_FSYNC
843	aio_fdatasync = REQ_FDATASYNC	1025	aio_fdatasync = REQ_FDATASYNC
844	CODE:	1026	PPCODE:
845	{	1027	{
846	dREQ;	1028	dREQ;
847		1029
848	req->type = ix;	1030	req->type = ix;
849	req->fh = newSVsv (fh);	1031	req->fh = newSVsv (fh);
850	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1032	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
851		1033
852	send_req (req);	1034	REQ_SEND (req);
853	}	1035	}
854		1036
855	void	1037	void
856	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1038	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
857	SV * fh	1039	SV * fh
…		…
862	SV * callback	1044	SV * callback
863	ALIAS:	1045	ALIAS:
864	aio_read = REQ_READ	1046	aio_read = REQ_READ
865	aio_write = REQ_WRITE	1047	aio_write = REQ_WRITE
866	PROTOTYPE: $$$$$;$	1048	PROTOTYPE: $$$$$;$
867	CODE:	1049	PPCODE:
868	{	1050	{
869	aio_req req;	1051	aio_req req;
870	STRLEN svlen;	1052	STRLEN svlen;
871	char *svptr = SvPVbyte (data, svlen);	1053	char *svptr = SvPVbyte (data, svlen);
872		1054
…		…
910	{	1092	{
911	SvREADONLY_on (data);	1093	SvREADONLY_on (data);
912	req->data2ptr = (void *)data;	1094	req->data2ptr = (void *)data;
913	}	1095	}
914		1096
915	send_req (req);	1097	REQ_SEND;
916	}	1098	}
917	}	1099	}
918		1100
919	void	1101	void
920	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1102	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
…		…
922	SV * in_fh	1104	SV * in_fh
923	UV in_offset	1105	UV in_offset
924	UV length	1106	UV length
925	SV * callback	1107	SV * callback
926	PROTOTYPE: $$$$;$	1108	PROTOTYPE: $$$$;$
927	CODE:	1109	PPCODE:
928	{	1110	{
929	dREQ;	1111	dREQ;
930		1112
931	req->type = REQ_SENDFILE;	1113	req->type = REQ_SENDFILE;
932	req->fh = newSVsv (out_fh);	1114	req->fh = newSVsv (out_fh);
…		…
934	req->fh2 = newSVsv (in_fh);	1116	req->fh2 = newSVsv (in_fh);
935	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1117	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
936	req->offset = in_offset;	1118	req->offset = in_offset;
937	req->length = length;	1119	req->length = length;
938		1120
939	send_req (req);	1121	REQ_SEND;
940	}	1122	}
941		1123
942	void	1124	void
943	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1125	aio_readahead (fh,offset,length,callback=&PL_sv_undef)
944	SV * fh	1126	SV * fh
945	UV offset	1127	UV offset
946	IV length	1128	IV length
947	SV * callback	1129	SV * callback
948	PROTOTYPE: $$$;$	1130	PROTOTYPE: $$$;$
949	CODE:	1131	PPCODE:
950	{	1132	{
951	dREQ;	1133	dREQ;
952		1134
953	req->type = REQ_READAHEAD;	1135	req->type = REQ_READAHEAD;
954	req->fh = newSVsv (fh);	1136	req->fh = newSVsv (fh);
955	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1137	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
956	req->offset = offset;	1138	req->offset = offset;
957	req->length = length;	1139	req->length = length;
958		1140
959	send_req (req);	1141	REQ_SEND;
960	}	1142	}
961		1143
962	void	1144	void
963	aio_stat (fh_or_path,callback=&PL_sv_undef)	1145	aio_stat (fh_or_path,callback=&PL_sv_undef)
964	SV * fh_or_path	1146	SV * fh_or_path
965	SV * callback	1147	SV * callback
966	ALIAS:	1148	ALIAS:
967	aio_stat = REQ_STAT	1149	aio_stat = REQ_STAT
968	aio_lstat = REQ_LSTAT	1150	aio_lstat = REQ_LSTAT
969	CODE:	1151	PPCODE:
970	{	1152	{
971	dREQ;	1153	dREQ;
972		1154
973	New (0, req->statdata, 1, Stat_t);	1155	New (0, req->statdata, 1, Stat_t);
974	if (!req->statdata)	1156	if (!req->statdata)
975	{	1157	{
976	free_req (req);	1158	req_free (req);
977	croak ("out of memory during aio_req->statdata allocation");	1159	croak ("out of memory during aio_req->statdata allocation");
978	}	1160	}
979		1161
980	if (SvPOK (fh_or_path))	1162	if (SvPOK (fh_or_path))
981	{	1163	{
…		…
988	req->type = REQ_FSTAT;	1170	req->type = REQ_FSTAT;
989	req->fh = newSVsv (fh_or_path);	1171	req->fh = newSVsv (fh_or_path);
990	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1172	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
991	}	1173	}
992		1174
993	send_req (req);	1175	REQ_SEND;
994	}	1176	}
995		1177
996	void	1178	void
997	aio_unlink (pathname,callback=&PL_sv_undef)	1179	aio_unlink (pathname,callback=&PL_sv_undef)
998	SV * pathname	1180	SV * pathname
999	SV * callback	1181	SV * callback
1000	ALIAS:	1182	ALIAS:
1001	aio_unlink = REQ_UNLINK	1183	aio_unlink = REQ_UNLINK
1002	aio_rmdir = REQ_RMDIR	1184	aio_rmdir = REQ_RMDIR
1003	aio_readdir = REQ_READDIR	1185	aio_readdir = REQ_READDIR
1004	CODE:	1186	PPCODE:
1005	{	1187	{
1006	dREQ;	1188	dREQ;
1007		1189
1008	req->type = ix;	1190	req->type = ix;
1009	req->data = newSVsv (pathname);	1191	req->data = newSVsv (pathname);
1010	req->dataptr = SvPVbyte_nolen (req->data);	1192	req->dataptr = SvPVbyte_nolen (req->data);
1011		1193
1012	send_req (req);	1194	REQ_SEND;
1013	}	1195	}
1014		1196
1015	void	1197	void
1016	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1198	aio_link (oldpath,newpath,callback=&PL_sv_undef)
1017	SV * oldpath	1199	SV * oldpath
…		…
1019	SV * callback	1201	SV * callback
1020	ALIAS:	1202	ALIAS:
1021	aio_link = REQ_LINK	1203	aio_link = REQ_LINK
1022	aio_symlink = REQ_SYMLINK	1204	aio_symlink = REQ_SYMLINK
1023	aio_rename = REQ_RENAME	1205	aio_rename = REQ_RENAME
1024	CODE:	1206	PPCODE:
1025	{	1207	{
1026	dREQ;	1208	dREQ;
1027		1209
1028	req->type = ix;	1210	req->type = ix;
1029	req->fh = newSVsv (oldpath);	1211	req->fh = newSVsv (oldpath);
1030	req->data2ptr = SvPVbyte_nolen (req->fh);	1212	req->data2ptr = SvPVbyte_nolen (req->fh);
1031	req->data = newSVsv (newpath);	1213	req->data = newSVsv (newpath);
1032	req->dataptr = SvPVbyte_nolen (req->data);	1214	req->dataptr = SvPVbyte_nolen (req->data);
1033		1215
1034	send_req (req);	1216	REQ_SEND;
		1217	}
		1218
		1219	void
		1220	aio_sleep (delay,callback=&PL_sv_undef)
		1221	double delay
		1222	SV * callback
		1223	PPCODE:
		1224	{
		1225	dREQ;
		1226
		1227	req->type = REQ_SLEEP;
		1228	req->fd = delay < 0. ? 0 : delay;
		1229	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
		1230
		1231	REQ_SEND;
		1232	}
		1233
		1234	void
		1235	aio_group (callback=&PL_sv_undef)
		1236	SV * callback
		1237	PROTOTYPE: ;$
		1238	PPCODE:
		1239	{
		1240	dREQ;
		1241
		1242	req->type = REQ_GROUP;
		1243	req_send (req);
		1244
		1245	XPUSHs (req_sv (req, AIO_GRP_KLASS));
		1246	}
		1247
		1248	void
		1249	aio_nop (callback=&PL_sv_undef)
		1250	SV * callback
		1251	PPCODE:
		1252	{
		1253	dREQ;
		1254
		1255	req->type = REQ_NOP;
		1256
		1257	REQ_SEND;
1035	}	1258	}
1036		1259
1037	#if 0	1260	#if 0
1038		1261
1039	# undocumented, because it does not cancel active requests
1040	void	1262	void
1041	cancel_most_requests ()	1263	aio_pri (int pri = DEFAULT_PRI)
1042	PROTOTYPE:	1264	CODE:
1043	CODE:	1265	if (pri < PRI_MIN) pri = PRI_MIN;
1044	{	1266	if (pri > PRI_MAX) pri = PRI_MAX;
1045	aio_req *req;	1267	next_pri = pri + PRI_BIAS;
1046
1047	pthread_mutex_lock (&reqlock);
1048	for (req = reqs; req; req = req->next)
1049	req->flags \|= 1;
1050	pthread_mutex_unlock (&reqlock);
1051
1052	pthread_mutex_lock (&reslock);
1053	for (req = ress; req; req = req->next)
1054	req->flags \|= 1;
1055	pthread_mutex_unlock (&reslock);
1056	}
1057		1268
1058	#endif	1269	#endif
1059		1270
1060	void	1271	void
1061	flush ()	1272	flush ()
…		…
1106	CODE:	1317	CODE:
1107	RETVAL = nreqs;	1318	RETVAL = nreqs;
1108	OUTPUT:	1319	OUTPUT:
1109	RETVAL	1320	RETVAL
1110		1321
		1322	PROTOTYPES: DISABLE
		1323
		1324	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
		1325
		1326	void
		1327	cancel (aio_req_ornot req)
		1328	PROTOTYPE:
		1329	CODE:
		1330	req_cancel (req);
		1331
		1332	void
		1333	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1334	CODE:
		1335	SvREFCNT_dec (req->callback);
		1336	req->callback = newSVsv (callback);
		1337
		1338	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
		1339
		1340	void
		1341	add (aio_req grp, ...)
		1342	PPCODE:
		1343	{
		1344	int i;
		1345	aio_req req;
		1346
		1347	if (grp->fd == 2)
		1348	croak ("cannot add requests to IO::AIO::GRP after the group finished");
		1349
		1350	for (i = 1; i < items; ++i )
		1351	{
		1352	if (GIMME_V != G_VOID)
		1353	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1354
		1355	req = SvAIO_REQ (ST (i));
		1356
		1357	if (req)
		1358	{
		1359	++grp->length;
		1360	req->grp = grp;
		1361
		1362	req->grp_prev = 0;
		1363	req->grp_next = grp->grp_first;
		1364
		1365	if (grp->grp_first)
		1366	grp->grp_first->grp_prev = req;
		1367
		1368	grp->grp_first = req;
		1369	}
		1370	}
		1371	}
		1372
		1373	void
		1374	result (aio_req grp, ...)
		1375	CODE:
		1376	{
		1377	int i;
		1378	AV *av = newAV ();
		1379
		1380	for (i = 1; i < items; ++i )
		1381	av_push (av, newSVsv (ST (i)));
		1382
		1383	SvREFCNT_dec (grp->data);
		1384	grp->data = (SV *)av;
		1385	}
		1386
		1387	void
		1388	feed_limit (aio_req grp, int limit)
		1389	CODE:
		1390	grp->fd2 = limit;
		1391	aio_grp_feed (grp);
		1392
		1393	void
		1394	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1395	CODE:
		1396	{
		1397	SvREFCNT_dec (grp->fh2);
		1398	grp->fh2 = newSVsv (callback);
		1399
		1400	if (grp->fd2 <= 0)
		1401	grp->fd2 = 2;
		1402
		1403	aio_grp_feed (grp);
		1404	}
		1405

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.42 by root, Fri Jul 21 07:35:31 2006 UTC vs. Revision 1.61 by root, Mon Oct 23 22:44:21 2006 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.42 by root, Fri Jul 21 07:35:31 2006 UTC vs.
Revision 1.61 by root, Mon Oct 23 22:44:21 2006 UTC