[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 1.62 by root, Mon Oct 23 22:45:18 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);
		122	static void req_free (aio_req req);
		123
		124	/* must be called at most once */
		125	static SV req_sv (aio_req req, const char klass)
		126	{
		127	if (!req->self)
		128	{
		129	req->self = (SV *)newHV ();
		130	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		131	}
		132
		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	{
		172	SvREFCNT_dec (grp->fh2);
		173	grp->fh2 = 0;
		174	break;
		175	}
		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	fd_set rfd;
		197
		198	while (nreqs)
		199	{
		200	aio_req req;
		201	pthread_mutex_lock (&reslock);
		202	req = ress;
		203	pthread_mutex_unlock (&reslock);
		204
		205	if (req)
		206	return;
		207
		208	FD_ZERO(&rfd);
		209	FD_SET(respipe [0], &rfd);
		210
		211	select (respipe [0] + 1, &rfd, 0, 0, 0);
		212	}
		213	}
		214
		215	static void req_invoke (aio_req req)
		216	{
		217	dSP;
		218	int errorno = errno;
		219
		220	if (req->flags & FLAG_CANCELLED \|\| !SvOK (req->callback))
		221	return;
		222
		223	errno = req->errorno;
		224
		225	ENTER;
		226	SAVETMPS;
		227	PUSHMARK (SP);
		228	EXTEND (SP, 1);
		229
		230	switch (req->type)
		231	{
		232	case REQ_READDIR:
		233	{
		234	SV *rv = &PL_sv_undef;
		235
		236	if (req->result >= 0)
		237	{
		238	char *buf = req->data2ptr;
		239	AV *av = newAV ();
		240
		241	while (req->result)
		242	{
		243	SV *sv = newSVpv (buf, 0);
		244
		245	av_push (av, sv);
		246	buf += SvCUR (sv) + 1;
		247	req->result--;
		248	}
		249
		250	rv = sv_2mortal (newRV_noinc ((SV *)av));
		251	}
		252
		253	PUSHs (rv);
		254	}
		255	break;
		256
		257	case REQ_OPEN:
		258	{
		259	/* convert fd to fh */
		260	SV *fh;
		261
		262	PUSHs (sv_2mortal (newSViv (req->result)));
		263	PUTBACK;
		264	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		265	SPAGAIN;
		266
		267	fh = SvREFCNT_inc (POPs);
		268
		269	PUSHMARK (SP);
		270	XPUSHs (sv_2mortal (fh));
		271	}
		272	break;
		273
		274	case REQ_GROUP:
		275	req->fd = 2; /* mark group as finished */
		276
		277	if (req->data)
		278	{
		279	int i;
		280	AV av = (AV )req->data;
		281
		282	EXTEND (SP, AvFILL (av) + 1);
		283	for (i = 0; i <= AvFILL (av); ++i)
		284	PUSHs (*av_fetch (av, i, 0));
		285	}
		286	break;
		287
		288	case REQ_NOP:
		289	case REQ_SLEEP:
		290	break;
		291
		292	default:
		293	PUSHs (sv_2mortal (newSViv (req->result)));
		294	break;
		295	}
		296
		297
		298	PUTBACK;
		299	call_sv (req->callback, G_VOID \| G_EVAL);
		300	SPAGAIN;
		301
		302	FREETMPS;
		303	LEAVE;
		304
		305	errno = errorno;
		306
		307	if (SvTRUE (ERRSV))
		308	{
		309	req_free (req);
		310	croak (0);
		311	}
		312	}
		313
94	static void free_req (aio_req req)	314	static void req_free (aio_req req)
95	{	315	{
96	if (req->data)	316	if (req->grp)
		317	{
		318	aio_req grp = req->grp;
		319
		320	/* unlink request */
		321	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		322	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		323
		324	if (grp->grp_first == req)
		325	grp->grp_first = req->grp_next;
		326
		327	aio_grp_dec (grp);
		328	}
		329
		330	if (req->self)
		331	{
		332	sv_unmagic (req->self, PERL_MAGIC_ext);
		333	SvREFCNT_dec (req->self);
		334	}
		335
97	SvREFCNT_dec (req->data);	336	SvREFCNT_dec (req->data);
98
99	if (req->fh)
100	SvREFCNT_dec (req->fh);	337	SvREFCNT_dec (req->fh);
101
102	if (req->fh2)
103	SvREFCNT_dec (req->fh2);	338	SvREFCNT_dec (req->fh2);
104
105	if (req->statdata)
106	Safefree (req->statdata);
107
108	if (req->callback)
109	SvREFCNT_dec (req->callback);	339	SvREFCNT_dec (req->callback);
		340	Safefree (req->statdata);
110		341
111	if (req->type == REQ_READDIR && req->result >= 0)	342	if (req->type == REQ_READDIR && req->result >= 0)
112	free (req->data2ptr);	343	free (req->data2ptr);
113		344
114	Safefree (req);	345	Safefree (req);
115	}	346	}
116		347
117	static void	348	static void req_cancel (aio_req req)
118	poll_wait ()
119	{	349	{
120	if (nreqs && !ress)	350	req->flags \|= FLAG_CANCELLED;
121	{
122	fd_set rfd;
123	FD_ZERO(&rfd);
124	FD_SET(respipe [0], &rfd);
125		351
126	select (respipe [0] + 1, &rfd, 0, 0, 0);	352	if (req->type == REQ_GROUP)
127	}	353	{
128	}	354	aio_req sub;
129		355
130	static int	356	for (sub = req->grp_first; sub; sub = sub->grp_next)
131	poll_cb ()	357	req_cancel (sub);
		358	}
		359	}
		360
		361	static int poll_cb ()
132	{	362	{
133	dSP;	363	dSP;
134	int count = 0;	364	int count = 0;
135	int do_croak = 0;	365	int do_croak = 0;
136	aio_req req;	366	aio_req req;
…		…
158	pthread_mutex_unlock (&reslock);	388	pthread_mutex_unlock (&reslock);
159		389
160	if (!req)	390	if (!req)
161	break;	391	break;
162		392
163	nreqs--;	393	--nreqs;
164		394
165	if (req->type == REQ_QUIT)	395	if (req->type == REQ_QUIT)
166	started--;	396	started--;
		397	else if (req->type == REQ_GROUP && req->length)
		398	{
		399	req->fd = 1; /* mark request as delayed */
		400	continue;
		401	}
167	else	402	else
168	{	403	{
169	int errorno = errno;
170	errno = req->errorno;
171
172	if (req->type == REQ_READ)	404	if (req->type == REQ_READ)
173	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	405	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
174		406
175	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	407	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
176	SvREADONLY_off (req->data);	408	SvREADONLY_off (req->data);
…		…
180	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	412	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
181	PL_laststatval = req->result;	413	PL_laststatval = req->result;
182	PL_statcache = *(req->statdata);	414	PL_statcache = *(req->statdata);
183	}	415	}
184		416
185	ENTER;	417	req_invoke (req);
186	PUSHMARK (SP);
187		418
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++;	419	count++;
248	}	420	}
249		421
250	free_req (req);	422	req_free (req);
251	}	423	}
252		424
253	return count;	425	return count;
254	}	426	}
255		427
256	static void aio_proc(void arg);	428	static void aio_proc(void arg);
257		429
258	static void
259	start_thread (void)	430	static void start_thread (void)
260	{	431	{
261	sigset_t fullsigset, oldsigset;	432	sigset_t fullsigset, oldsigset;
262	pthread_t tid;	433	pthread_t tid;
263	pthread_attr_t attr;	434	pthread_attr_t attr;
264		435
…		…
273	started++;	444	started++;
274		445
275	sigprocmask (SIG_SETMASK, &oldsigset, 0);	446	sigprocmask (SIG_SETMASK, &oldsigset, 0);
276	}	447	}
277		448
278	static void	449	static void req_send (aio_req req)
279	send_req (aio_req req)
280	{	450	{
281	while (started < wanted && nreqs >= started)	451	while (started < wanted && nreqs >= started)
282	start_thread ();	452	start_thread ();
283		453
284	nreqs++;	454	++nreqs;
285		455
286	pthread_mutex_lock (&reqlock);	456	pthread_mutex_lock (&reqlock);
287		457
288	req->next = 0;	458	req->next = 0;
289		459
…		…
308		478
309	poll_wait ();	479	poll_wait ();
310	}	480	}
311	}	481	}
312		482
313	static void	483	static void end_thread (void)
314	end_thread (void)
315	{	484	{
316	aio_req req;	485	aio_req req;
317	Newz (0, req, 1, aio_cb);	486	Newz (0, req, 1, aio_cb);
318	req->type = REQ_QUIT;	487	req->type = REQ_QUIT;
319		488
320	send_req (req);	489	req_send (req);
321	}	490	}
322		491
323	static void min_parallel (int nthreads)	492	static void min_parallel (int nthreads)
324	{	493	{
325	if (wanted < nthreads)	494	if (wanted < nthreads)
…		…
370	* normal read/write by using a mutex. slows down execution a lot,	539	* normal read/write by using a mutex. slows down execution a lot,
371	* but that's your problem, not mine.	540	* but that's your problem, not mine.
372	*/	541	*/
373	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	542	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
374		543
375	static ssize_t	544	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	{	545	{
378	ssize_t res;	546	ssize_t res;
379	off_t ooffset;	547	off_t ooffset;
380		548
381	pthread_mutex_lock (&preadwritelock);	549	pthread_mutex_lock (&preadwritelock);
…		…
386	pthread_mutex_unlock (&preadwritelock);	554	pthread_mutex_unlock (&preadwritelock);
387		555
388	return res;	556	return res;
389	}	557	}
390		558
391	static ssize_t
392	pwrite (int fd, void *buf, size_t count, off_t offset)	559	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
393	{	560	{
394	ssize_t res;	561	ssize_t res;
395	off_t ooffset;	562	off_t ooffset;
396		563
397	pthread_mutex_lock (&preadwritelock);	564	pthread_mutex_lock (&preadwritelock);
…		…
410	#endif	577	#endif
411		578
412	#if !HAVE_READAHEAD	579	#if !HAVE_READAHEAD
413	# define readahead aio_readahead	580	# define readahead aio_readahead
414		581
415	static ssize_t
416	readahead (int fd, off_t offset, size_t count)	582	static ssize_t readahead (int fd, off_t offset, size_t count)
417	{	583	{
418	char readahead_buf[4096];	584	char readahead_buf[4096];
419		585
420	while (count > 0)	586	while (count > 0)
421	{	587	{
…		…
433	#if !HAVE_READDIR_R	599	#if !HAVE_READDIR_R
434	# define readdir_r aio_readdir_r	600	# define readdir_r aio_readdir_r
435		601
436	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	602	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
437		603
438	static int
439	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	604	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
440	{	605	{
441	struct dirent *e;	606	struct dirent *e;
442	int errorno;	607	int errorno;
443		608
444	pthread_mutex_lock (&readdirlock);	609	pthread_mutex_lock (&readdirlock);
…		…
460	return e ? 0 : -1;	625	return e ? 0 : -1;
461	}	626	}
462	#endif	627	#endif
463		628
464	/* sendfile always needs emulation */	629	/* sendfile always needs emulation */
465	static ssize_t
466	sendfile_ (int ofd, int ifd, off_t offset, size_t count)	630	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
467	{	631	{
468	ssize_t res;	632	ssize_t res;
469		633
470	if (!count)	634	if (!count)
471	return 0;	635	return 0;
…		…
553		717
554	return res;	718	return res;
555	}	719	}
556		720
557	/* read a full directory */	721	/* read a full directory */
558	static int
559	scandir_ (const char path, void *namesp)	722	static int scandir_ (const char path, void *namesp)
560	{	723	{
561	DIR *dirp = opendir (path);	724	DIR *dirp = opendir (path);
562	union	725	union
563	{	726	{
564	struct dirent d;	727	struct dirent d;
…		…
618	return res;	781	return res;
619	}	782	}
620		783
621	/*****************************************************************************/	784	/*****************************************************************************/
622		785
623	static void *
624	aio_proc (void *thr_arg)	786	static void aio_proc (void thr_arg)
625	{	787	{
626	aio_req req;	788	aio_req req;
627	int type;	789	int type;
628		790
629	do	791	do
…		…
647	}	809	}
648		810
649	pthread_mutex_unlock (&reqlock);	811	pthread_mutex_unlock (&reqlock);
650		812
651	errno = 0; /* strictly unnecessary */	813	errno = 0; /* strictly unnecessary */
		814	type = req->type; /* remember type for QUIT check */
652		815
653	type = req->type;	816	if (!(req->flags & FLAG_CANCELLED))
654
655	switch (type)	817	switch (type)
656	{	818	{
657	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	819	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;	820	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
659		821
660	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	822	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;	823	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
662		824
663	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	825	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
664	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	826	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
665	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	827	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
666		828
667	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	829	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
668	case REQ_CLOSE: req->result = close (req->fd); break;	830	case REQ_CLOSE: req->result = close (req->fd); break;
669	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	831	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
670	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	832	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
671	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	833	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
672	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	834	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
673	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	835	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
674		836
675	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	837	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
676	case REQ_FSYNC: req->result = fsync (req->fd); break;	838	case REQ_FSYNC: req->result = fsync (req->fd); break;
677	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	839	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
678		840
		841	case REQ_SLEEP:
		842	{
		843	struct timeval tv;
		844
		845	tv.tv_sec = req->fd;
		846	tv.tv_usec = req->fd2;
		847
		848	req->result = select (0, 0, 0, 0, &tv);
		849	}
		850
		851	case REQ_GROUP:
		852	case REQ_NOP:
679	case REQ_QUIT:	853	case REQ_QUIT:
680	break;	854	break;
681		855
682	default:	856	default:
683	req->result = ENOSYS;	857	req->result = ENOSYS;
684	break;	858	break;
685	}	859	}
686		860
687	req->errorno = errno;	861	req->errorno = errno;
688		862
689	pthread_mutex_lock (&reslock);	863	pthread_mutex_lock (&reslock);
690		864
…		…
744		918
745	while (reqs)	919	while (reqs)
746	{	920	{
747	prv = reqs;	921	prv = reqs;
748	reqs = prv->next;	922	reqs = prv->next;
749	free_req (prv);	923	req_free (prv);
750	}	924	}
751		925
752	reqs = reqe = 0;	926	reqs = reqe = 0;
753		927
754	while (ress)	928	while (ress)
755	{	929	{
756	prv = ress;	930	prv = ress;
757	ress = prv->next;	931	ress = prv->next;
758	free_req (prv);	932	req_free (prv);
759	}	933	}
760		934
761	ress = rese = 0;	935	ress = rese = 0;
762		936
763	close (respipe [0]);	937	close (respipe [0]);
…		…
767	atfork_parent ();	941	atfork_parent ();
768	}	942	}
769		943
770	#define dREQ \	944	#define dREQ \
771	aio_req req; \	945	aio_req req; \
		946	int req_pri = next_pri; \
		947	next_pri = DEFAULT_PRI + PRI_BIAS; \
772	\	948	\
773	if (SvOK (callback) && !SvROK (callback)) \	949	if (SvOK (callback) && !SvROK (callback)) \
774	croak ("clalback must be undef or of reference type"); \	950	croak ("callback must be undef or of reference type"); \
775	\	951	\
776	Newz (0, req, 1, aio_cb); \	952	Newz (0, req, 1, aio_cb); \
777	if (!req) \	953	if (!req) \
778	croak ("out of memory during aio_req allocation"); \	954	croak ("out of memory during aio_req allocation"); \
779	\	955	\
780	req->callback = newSVsv (callback);	956	req->callback = newSVsv (callback); \
		957	req->pri = req_pri
		958
		959	#define REQ_SEND \
		960	req_send (req); \
		961	\
		962	if (GIMME_V != G_VOID) \
		963	XPUSHs (req_sv (req, AIO_REQ_KLASS));
781		964
782	MODULE = IO::AIO PACKAGE = IO::AIO	965	MODULE = IO::AIO PACKAGE = IO::AIO
783		966
784	PROTOTYPES: ENABLE	967	PROTOTYPES: ENABLE
785		968
…		…
817	SV * pathname	1000	SV * pathname
818	int flags	1001	int flags
819	int mode	1002	int mode
820	SV * callback	1003	SV * callback
821	PROTOTYPE: $$$;$	1004	PROTOTYPE: $$$;$
822	CODE:	1005	PPCODE:
823	{	1006	{
824	dREQ;	1007	dREQ;
825		1008
826	req->type = REQ_OPEN;	1009	req->type = REQ_OPEN;
827	req->data = newSVsv (pathname);	1010	req->data = newSVsv (pathname);
828	req->dataptr = SvPVbyte_nolen (req->data);	1011	req->dataptr = SvPVbyte_nolen (req->data);
829	req->fd = flags;	1012	req->fd = flags;
830	req->mode = mode;	1013	req->mode = mode;
831		1014
832	send_req (req);	1015	REQ_SEND;
833	}	1016	}
834		1017
835	void	1018	void
836	aio_close (fh,callback=&PL_sv_undef)	1019	aio_close (fh,callback=&PL_sv_undef)
837	SV * fh	1020	SV * fh
…		…
839	PROTOTYPE: $;$	1022	PROTOTYPE: $;$
840	ALIAS:	1023	ALIAS:
841	aio_close = REQ_CLOSE	1024	aio_close = REQ_CLOSE
842	aio_fsync = REQ_FSYNC	1025	aio_fsync = REQ_FSYNC
843	aio_fdatasync = REQ_FDATASYNC	1026	aio_fdatasync = REQ_FDATASYNC
844	CODE:	1027	PPCODE:
845	{	1028	{
846	dREQ;	1029	dREQ;
847		1030
848	req->type = ix;	1031	req->type = ix;
849	req->fh = newSVsv (fh);	1032	req->fh = newSVsv (fh);
850	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1033	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
851		1034
852	send_req (req);	1035	REQ_SEND (req);
853	}	1036	}
854		1037
855	void	1038	void
856	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1039	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
857	SV * fh	1040	SV * fh
…		…
862	SV * callback	1045	SV * callback
863	ALIAS:	1046	ALIAS:
864	aio_read = REQ_READ	1047	aio_read = REQ_READ
865	aio_write = REQ_WRITE	1048	aio_write = REQ_WRITE
866	PROTOTYPE: $$$$$;$	1049	PROTOTYPE: $$$$$;$
867	CODE:	1050	PPCODE:
868	{	1051	{
869	aio_req req;	1052	aio_req req;
870	STRLEN svlen;	1053	STRLEN svlen;
871	char *svptr = SvPVbyte (data, svlen);	1054	char *svptr = SvPVbyte (data, svlen);
872		1055
…		…
910	{	1093	{
911	SvREADONLY_on (data);	1094	SvREADONLY_on (data);
912	req->data2ptr = (void *)data;	1095	req->data2ptr = (void *)data;
913	}	1096	}
914		1097
915	send_req (req);	1098	REQ_SEND;
916	}	1099	}
917	}	1100	}
918		1101
919	void	1102	void
920	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1103	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
…		…
922	SV * in_fh	1105	SV * in_fh
923	UV in_offset	1106	UV in_offset
924	UV length	1107	UV length
925	SV * callback	1108	SV * callback
926	PROTOTYPE: $$$$;$	1109	PROTOTYPE: $$$$;$
927	CODE:	1110	PPCODE:
928	{	1111	{
929	dREQ;	1112	dREQ;
930		1113
931	req->type = REQ_SENDFILE;	1114	req->type = REQ_SENDFILE;
932	req->fh = newSVsv (out_fh);	1115	req->fh = newSVsv (out_fh);
…		…
934	req->fh2 = newSVsv (in_fh);	1117	req->fh2 = newSVsv (in_fh);
935	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1118	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
936	req->offset = in_offset;	1119	req->offset = in_offset;
937	req->length = length;	1120	req->length = length;
938		1121
939	send_req (req);	1122	REQ_SEND;
940	}	1123	}
941		1124
942	void	1125	void
943	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1126	aio_readahead (fh,offset,length,callback=&PL_sv_undef)
944	SV * fh	1127	SV * fh
945	UV offset	1128	UV offset
946	IV length	1129	IV length
947	SV * callback	1130	SV * callback
948	PROTOTYPE: $$$;$	1131	PROTOTYPE: $$$;$
949	CODE:	1132	PPCODE:
950	{	1133	{
951	dREQ;	1134	dREQ;
952		1135
953	req->type = REQ_READAHEAD;	1136	req->type = REQ_READAHEAD;
954	req->fh = newSVsv (fh);	1137	req->fh = newSVsv (fh);
955	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1138	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
956	req->offset = offset;	1139	req->offset = offset;
957	req->length = length;	1140	req->length = length;
958		1141
959	send_req (req);	1142	REQ_SEND;
960	}	1143	}
961		1144
962	void	1145	void
963	aio_stat (fh_or_path,callback=&PL_sv_undef)	1146	aio_stat (fh_or_path,callback=&PL_sv_undef)
964	SV * fh_or_path	1147	SV * fh_or_path
965	SV * callback	1148	SV * callback
966	ALIAS:	1149	ALIAS:
967	aio_stat = REQ_STAT	1150	aio_stat = REQ_STAT
968	aio_lstat = REQ_LSTAT	1151	aio_lstat = REQ_LSTAT
969	CODE:	1152	PPCODE:
970	{	1153	{
971	dREQ;	1154	dREQ;
972		1155
973	New (0, req->statdata, 1, Stat_t);	1156	New (0, req->statdata, 1, Stat_t);
974	if (!req->statdata)	1157	if (!req->statdata)
975	{	1158	{
976	free_req (req);	1159	req_free (req);
977	croak ("out of memory during aio_req->statdata allocation");	1160	croak ("out of memory during aio_req->statdata allocation");
978	}	1161	}
979		1162
980	if (SvPOK (fh_or_path))	1163	if (SvPOK (fh_or_path))
981	{	1164	{
…		…
988	req->type = REQ_FSTAT;	1171	req->type = REQ_FSTAT;
989	req->fh = newSVsv (fh_or_path);	1172	req->fh = newSVsv (fh_or_path);
990	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1173	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
991	}	1174	}
992		1175
993	send_req (req);	1176	REQ_SEND;
994	}	1177	}
995		1178
996	void	1179	void
997	aio_unlink (pathname,callback=&PL_sv_undef)	1180	aio_unlink (pathname,callback=&PL_sv_undef)
998	SV * pathname	1181	SV * pathname
999	SV * callback	1182	SV * callback
1000	ALIAS:	1183	ALIAS:
1001	aio_unlink = REQ_UNLINK	1184	aio_unlink = REQ_UNLINK
1002	aio_rmdir = REQ_RMDIR	1185	aio_rmdir = REQ_RMDIR
1003	aio_readdir = REQ_READDIR	1186	aio_readdir = REQ_READDIR
1004	CODE:	1187	PPCODE:
1005	{	1188	{
1006	dREQ;	1189	dREQ;
1007		1190
1008	req->type = ix;	1191	req->type = ix;
1009	req->data = newSVsv (pathname);	1192	req->data = newSVsv (pathname);
1010	req->dataptr = SvPVbyte_nolen (req->data);	1193	req->dataptr = SvPVbyte_nolen (req->data);
1011		1194
1012	send_req (req);	1195	REQ_SEND;
1013	}	1196	}
1014		1197
1015	void	1198	void
1016	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1199	aio_link (oldpath,newpath,callback=&PL_sv_undef)
1017	SV * oldpath	1200	SV * oldpath
…		…
1019	SV * callback	1202	SV * callback
1020	ALIAS:	1203	ALIAS:
1021	aio_link = REQ_LINK	1204	aio_link = REQ_LINK
1022	aio_symlink = REQ_SYMLINK	1205	aio_symlink = REQ_SYMLINK
1023	aio_rename = REQ_RENAME	1206	aio_rename = REQ_RENAME
1024	CODE:	1207	PPCODE:
1025	{	1208	{
1026	dREQ;	1209	dREQ;
1027		1210
1028	req->type = ix;	1211	req->type = ix;
1029	req->fh = newSVsv (oldpath);	1212	req->fh = newSVsv (oldpath);
1030	req->data2ptr = SvPVbyte_nolen (req->fh);	1213	req->data2ptr = SvPVbyte_nolen (req->fh);
1031	req->data = newSVsv (newpath);	1214	req->data = newSVsv (newpath);
1032	req->dataptr = SvPVbyte_nolen (req->data);	1215	req->dataptr = SvPVbyte_nolen (req->data);
1033		1216
1034	send_req (req);	1217	REQ_SEND;
		1218	}
		1219
		1220	void
		1221	aio_sleep (delay,callback=&PL_sv_undef)
		1222	double delay
		1223	SV * callback
		1224	PPCODE:
		1225	{
		1226	dREQ;
		1227
		1228	req->type = REQ_SLEEP;
		1229	req->fd = delay < 0. ? 0 : delay;
		1230	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
		1231
		1232	REQ_SEND;
		1233	}
		1234
		1235	void
		1236	aio_group (callback=&PL_sv_undef)
		1237	SV * callback
		1238	PROTOTYPE: ;$
		1239	PPCODE:
		1240	{
		1241	dREQ;
		1242
		1243	req->type = REQ_GROUP;
		1244	req_send (req);
		1245
		1246	XPUSHs (req_sv (req, AIO_GRP_KLASS));
		1247	}
		1248
		1249	void
		1250	aio_nop (callback=&PL_sv_undef)
		1251	SV * callback
		1252	PPCODE:
		1253	{
		1254	dREQ;
		1255
		1256	req->type = REQ_NOP;
		1257
		1258	REQ_SEND;
1035	}	1259	}
1036		1260
1037	#if 0	1261	#if 0
1038		1262
1039	# undocumented, because it does not cancel active requests
1040	void	1263	void
1041	cancel_most_requests ()	1264	aio_pri (int pri = DEFAULT_PRI)
1042	PROTOTYPE:	1265	CODE:
1043	CODE:	1266	if (pri < PRI_MIN) pri = PRI_MIN;
1044	{	1267	if (pri > PRI_MAX) pri = PRI_MAX;
1045	aio_req *req;	1268	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		1269
1058	#endif	1270	#endif
1059		1271
1060	void	1272	void
1061	flush ()	1273	flush ()
…		…
1106	CODE:	1318	CODE:
1107	RETVAL = nreqs;	1319	RETVAL = nreqs;
1108	OUTPUT:	1320	OUTPUT:
1109	RETVAL	1321	RETVAL
1110		1322
		1323	PROTOTYPES: DISABLE
		1324
		1325	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
		1326
		1327	void
		1328	cancel (aio_req_ornot req)
		1329	PROTOTYPE:
		1330	CODE:
		1331	req_cancel (req);
		1332
		1333	void
		1334	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1335	CODE:
		1336	SvREFCNT_dec (req->callback);
		1337	req->callback = newSVsv (callback);
		1338
		1339	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
		1340
		1341	void
		1342	add (aio_req grp, ...)
		1343	PPCODE:
		1344	{
		1345	int i;
		1346	aio_req req;
		1347
		1348	if (grp->fd == 2)
		1349	croak ("cannot add requests to IO::AIO::GRP after the group finished");
		1350
		1351	for (i = 1; i < items; ++i )
		1352	{
		1353	if (GIMME_V != G_VOID)
		1354	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1355
		1356	req = SvAIO_REQ (ST (i));
		1357
		1358	if (req)
		1359	{
		1360	++grp->length;
		1361	req->grp = grp;
		1362
		1363	req->grp_prev = 0;
		1364	req->grp_next = grp->grp_first;
		1365
		1366	if (grp->grp_first)
		1367	grp->grp_first->grp_prev = req;
		1368
		1369	grp->grp_first = req;
		1370	}
		1371	}
		1372	}
		1373
		1374	void
		1375	result (aio_req grp, ...)
		1376	CODE:
		1377	{
		1378	int i;
		1379	AV *av = newAV ();
		1380
		1381	for (i = 1; i < items; ++i )
		1382	av_push (av, newSVsv (ST (i)));
		1383
		1384	SvREFCNT_dec (grp->data);
		1385	grp->data = (SV *)av;
		1386	}
		1387
		1388	void
		1389	feed_limit (aio_req grp, int limit)
		1390	CODE:
		1391	grp->fd2 = limit;
		1392	aio_grp_feed (grp);
		1393
		1394	void
		1395	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1396	CODE:
		1397	{
		1398	SvREFCNT_dec (grp->fh2);
		1399	grp->fh2 = newSVsv (callback);
		1400
		1401	if (grp->fd2 <= 0)
		1402	grp->fd2 = 2;
		1403
		1404	aio_grp_feed (grp);
		1405	}
		1406

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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 1.62 by root, Mon Oct 23 22:45:18 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 1.62 by root, Mon Oct 23 22:45:18 2006 UTC