[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 1.58 by root, Mon Oct 23 18:48:08 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	struct aio_cb grp, grp_prev, grp_next, grp_first;
64		72
65	/* should receive a cleanup, with unions */	73	SV self; / the perl counterpart of this request, if any */
66	int fd, fd2;	74
		75	SV data, callback;
		76	SV fh, fh2;
		77	void dataptr, data2ptr;
		78	Stat_t *statdata;
67	off_t offset;	79	off_t offset;
68	size_t length;	80	size_t length;
69	ssize_t result;	81	ssize_t result;
		82
		83	int type;
		84	int fd, fd2;
		85	int errorno;
		86	STRLEN dataoffset;
70	mode_t mode; /* open */	87	mode_t mode; /* open */
71	int errorno;	88	unsigned char pri;
72	SV data, callback;	89	unsigned char flags;
73	SV fh, fh2;
74	void dataptr, data2ptr;
75	STRLEN dataoffset;
76
77	Stat_t *statdata;
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;
81		98
82	static int started, wanted;	99	static int started, wanted;
83	static volatile int nreqs;	100	static volatile int nreqs;
84	static int max_outstanding = 1<<30;	101	static int max_outstanding = 1<<30;
85	static int respipe [2];	102	static int respipe [2];
…		…
89	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	106	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
90		107
91	static volatile aio_req reqs, reqe; /* queue start, queue end */	108	static volatile aio_req reqs, reqe; /* queue start, queue end */
92	static volatile aio_req ress, rese; /* queue start, queue end */	109	static volatile aio_req ress, rese; /* queue start, queue end */
93		110
		111	static void req_invoke (aio_req req);
94	static void free_req (aio_req req)	112	static void req_free (aio_req req);
95	{
96	if (req->data)
97	SvREFCNT_dec (req->data);
98		113
		114	/* must be called at most once */
		115	static SV req_sv (aio_req req, const char klass)
		116	{
99	if (req->fh)	117	if (!req->self)
100	SvREFCNT_dec (req->fh);	118	{
		119	req->self = (SV *)newHV ();
		120	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		121	}
101		122
102	if (req->fh2)	123	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
		124	}
		125
		126	static aio_req SvAIO_REQ (SV *sv)
		127	{
		128	MAGIC *mg;
		129
		130	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
		131	croak ("object of class " AIO_REQ_KLASS " expected");
		132
		133	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
		134
		135	return mg ? (aio_req)mg->mg_ptr : 0;
		136	}
		137
		138	static void aio_grp_feed (aio_req grp)
		139	{
		140	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
		141	{
		142	int old_len = grp->length;
		143
		144	if (grp->fh2 && SvOK (grp->fh2))
		145	{
		146	dSP;
		147
		148	ENTER;
		149	SAVETMPS;
		150	PUSHMARK (SP);
		151	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		152	PUTBACK;
		153	call_sv (grp->fh2, G_VOID \| G_EVAL);
		154	SPAGAIN;
		155	FREETMPS;
		156	LEAVE;
		157	}
		158
		159	/* stop if no progress has been made */
		160	if (old_len == grp->length)
		161	{
103	SvREFCNT_dec (req->fh2);	162	SvREFCNT_dec (grp->fh2);
104		163	grp->fh2 = 0;
105	if (req->statdata)	164	break;
106	Safefree (req->statdata);	165	}
107		166	}
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	}	167	}
116		168
117	static void	169	static void aio_grp_dec (aio_req grp)
118	poll_wait ()	170	{
		171	--grp->length;
		172
		173	/* call feeder, if applicable */
		174	aio_grp_feed (grp);
		175
		176	/* finish, if done */
		177	if (!grp->length && grp->fd)
		178	{
		179	req_invoke (grp);
		180	req_free (grp);
		181	}
		182	}
		183
		184	static void poll_wait ()
119	{	185	{
120	if (nreqs && !ress)	186	if (nreqs && !ress)
121	{	187	{
122	fd_set rfd;	188	fd_set rfd;
123	FD_ZERO(&rfd);	189	FD_ZERO(&rfd);
…		…
125		191
126	select (respipe [0] + 1, &rfd, 0, 0, 0);	192	select (respipe [0] + 1, &rfd, 0, 0, 0);
127	}	193	}
128	}	194	}
129		195
130	static int	196	static void req_invoke (aio_req req)
131	poll_cb ()	197	{
		198	dSP;
		199	int errorno = errno;
		200
		201	if (req->flags & FLAG_CANCELLED \|\| !SvOK (req->callback))
		202	return;
		203
		204	errno = req->errorno;
		205
		206	ENTER;
		207	SAVETMPS;
		208	PUSHMARK (SP);
		209	EXTEND (SP, 1);
		210
		211	switch (req->type)
		212	{
		213	case REQ_READDIR:
		214	{
		215	SV *rv = &PL_sv_undef;
		216
		217	if (req->result >= 0)
		218	{
		219	char *buf = req->data2ptr;
		220	AV *av = newAV ();
		221
		222	while (req->result)
		223	{
		224	SV *sv = newSVpv (buf, 0);
		225
		226	av_push (av, sv);
		227	buf += SvCUR (sv) + 1;
		228	req->result--;
		229	}
		230
		231	rv = sv_2mortal (newRV_noinc ((SV *)av));
		232	}
		233
		234	PUSHs (rv);
		235	}
		236	break;
		237
		238	case REQ_OPEN:
		239	{
		240	/* convert fd to fh */
		241	SV *fh;
		242
		243	PUSHs (sv_2mortal (newSViv (req->result)));
		244	PUTBACK;
		245	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		246	SPAGAIN;
		247
		248	fh = SvREFCNT_inc (POPs);
		249
		250	PUSHMARK (SP);
		251	XPUSHs (sv_2mortal (fh));
		252	}
		253	break;
		254
		255	case REQ_GROUP:
		256	req->fd = 2; /* mark group as finished */
		257
		258	if (req->data)
		259	{
		260	int i;
		261	AV av = (AV )req->data;
		262
		263	EXTEND (SP, AvFILL (av) + 1);
		264	for (i = 0; i <= AvFILL (av); ++i)
		265	PUSHs (*av_fetch (av, i, 0));
		266	}
		267	break;
		268
		269	case REQ_NOP:
		270	case REQ_SLEEP:
		271	break;
		272
		273	default:
		274	PUSHs (sv_2mortal (newSViv (req->result)));
		275	break;
		276	}
		277
		278
		279	PUTBACK;
		280	call_sv (req->callback, G_VOID \| G_EVAL);
		281	SPAGAIN;
		282
		283	FREETMPS;
		284	LEAVE;
		285
		286	errno = errorno;
		287
		288	if (SvTRUE (ERRSV))
		289	{
		290	req_free (req);
		291	croak (0);
		292	}
		293	}
		294
		295	static void req_free (aio_req req)
		296	{
		297	if (req->grp)
		298	{
		299	aio_req grp = req->grp;
		300
		301	/* unlink request */
		302	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		303	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		304
		305	if (grp->grp_first == req)
		306	grp->grp_first = req->grp_next;
		307
		308	aio_grp_dec (grp);
		309	}
		310
		311	if (req->self)
		312	{
		313	sv_unmagic (req->self, PERL_MAGIC_ext);
		314	SvREFCNT_dec (req->self);
		315	}
		316
		317	SvREFCNT_dec (req->data);
		318	SvREFCNT_dec (req->fh);
		319	SvREFCNT_dec (req->fh2);
		320	SvREFCNT_dec (req->callback);
		321	Safefree (req->statdata);
		322
		323	if (req->type == REQ_READDIR && req->result >= 0)
		324	free (req->data2ptr);
		325
		326	Safefree (req);
		327	}
		328
		329	static void req_cancel (aio_req req)
		330	{
		331	req->flags \|= FLAG_CANCELLED;
		332
		333	if (req->type == REQ_GROUP)
		334	{
		335	aio_req sub;
		336
		337	for (sub = req->grp_first; sub; sub = sub->grp_next)
		338	req_cancel (sub);
		339	}
		340	}
		341
		342	static int poll_cb ()
132	{	343	{
133	dSP;	344	dSP;
134	int count = 0;	345	int count = 0;
135	int do_croak = 0;	346	int do_croak = 0;
136	aio_req req;	347	aio_req req;
…		…
158	pthread_mutex_unlock (&reslock);	369	pthread_mutex_unlock (&reslock);
159		370
160	if (!req)	371	if (!req)
161	break;	372	break;
162		373
163	nreqs--;	374	--nreqs;
164		375
165	if (req->type == REQ_QUIT)	376	if (req->type == REQ_QUIT)
166	started--;	377	started--;
		378	else if (req->type == REQ_GROUP && req->length)
		379	{
		380	req->fd = 1; /* mark request as delayed */
		381	continue;
		382	}
167	else	383	else
168	{	384	{
169	int errorno = errno;
170	errno = req->errorno;
171
172	if (req->type == REQ_READ)	385	if (req->type == REQ_READ)
173	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	386	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
174		387
175	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	388	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
176	SvREADONLY_off (req->data);	389	SvREADONLY_off (req->data);
…		…
180	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	393	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
181	PL_laststatval = req->result;	394	PL_laststatval = req->result;
182	PL_statcache = *(req->statdata);	395	PL_statcache = *(req->statdata);
183	}	396	}
184		397
185	ENTER;	398	req_invoke (req);
186	PUSHMARK (SP);
187		399
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++;	400	count++;
248	}	401	}
249		402
250	free_req (req);	403	req_free (req);
251	}	404	}
252		405
253	return count;	406	return count;
254	}	407	}
255		408
256	static void aio_proc(void arg);	409	static void aio_proc(void arg);
257		410
258	static void
259	start_thread (void)	411	static void start_thread (void)
260	{	412	{
261	sigset_t fullsigset, oldsigset;	413	sigset_t fullsigset, oldsigset;
262	pthread_t tid;	414	pthread_t tid;
263	pthread_attr_t attr;	415	pthread_attr_t attr;
264		416
…		…
273	started++;	425	started++;
274		426
275	sigprocmask (SIG_SETMASK, &oldsigset, 0);	427	sigprocmask (SIG_SETMASK, &oldsigset, 0);
276	}	428	}
277		429
278	static void	430	static void req_send (aio_req req)
279	send_req (aio_req req)
280	{	431	{
281	while (started < wanted && nreqs >= started)	432	while (started < wanted && nreqs >= started)
282	start_thread ();	433	start_thread ();
283		434
284	nreqs++;	435	++nreqs;
285		436
286	pthread_mutex_lock (&reqlock);	437	pthread_mutex_lock (&reqlock);
287		438
288	req->next = 0;	439	req->next = 0;
289		440
…		…
308		459
309	poll_wait ();	460	poll_wait ();
310	}	461	}
311	}	462	}
312		463
313	static void	464	static void end_thread (void)
314	end_thread (void)
315	{	465	{
316	aio_req req;	466	aio_req req;
317	Newz (0, req, 1, aio_cb);	467	Newz (0, req, 1, aio_cb);
318	req->type = REQ_QUIT;	468	req->type = REQ_QUIT;
319		469
320	send_req (req);	470	req_send (req);
321	}	471	}
322		472
323	static void min_parallel (int nthreads)	473	static void min_parallel (int nthreads)
324	{	474	{
325	if (wanted < nthreads)	475	if (wanted < nthreads)
…		…
370	* normal read/write by using a mutex. slows down execution a lot,	520	* normal read/write by using a mutex. slows down execution a lot,
371	* but that's your problem, not mine.	521	* but that's your problem, not mine.
372	*/	522	*/
373	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	523	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
374		524
375	static ssize_t	525	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	{	526	{
378	ssize_t res;	527	ssize_t res;
379	off_t ooffset;	528	off_t ooffset;
380		529
381	pthread_mutex_lock (&preadwritelock);	530	pthread_mutex_lock (&preadwritelock);
…		…
386	pthread_mutex_unlock (&preadwritelock);	535	pthread_mutex_unlock (&preadwritelock);
387		536
388	return res;	537	return res;
389	}	538	}
390		539
391	static ssize_t
392	pwrite (int fd, void *buf, size_t count, off_t offset)	540	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
393	{	541	{
394	ssize_t res;	542	ssize_t res;
395	off_t ooffset;	543	off_t ooffset;
396		544
397	pthread_mutex_lock (&preadwritelock);	545	pthread_mutex_lock (&preadwritelock);
…		…
410	#endif	558	#endif
411		559
412	#if !HAVE_READAHEAD	560	#if !HAVE_READAHEAD
413	# define readahead aio_readahead	561	# define readahead aio_readahead
414		562
415	static ssize_t
416	readahead (int fd, off_t offset, size_t count)	563	static ssize_t readahead (int fd, off_t offset, size_t count)
417	{	564	{
418	char readahead_buf[4096];	565	char readahead_buf[4096];
419		566
420	while (count > 0)	567	while (count > 0)
421	{	568	{
…		…
433	#if !HAVE_READDIR_R	580	#if !HAVE_READDIR_R
434	# define readdir_r aio_readdir_r	581	# define readdir_r aio_readdir_r
435		582
436	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	583	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
437		584
438	static int
439	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	585	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
440	{	586	{
441	struct dirent *e;	587	struct dirent *e;
442	int errorno;	588	int errorno;
443		589
444	pthread_mutex_lock (&readdirlock);	590	pthread_mutex_lock (&readdirlock);
…		…
460	return e ? 0 : -1;	606	return e ? 0 : -1;
461	}	607	}
462	#endif	608	#endif
463		609
464	/* sendfile always needs emulation */	610	/* sendfile always needs emulation */
465	static ssize_t
466	sendfile_ (int ofd, int ifd, off_t offset, size_t count)	611	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
467	{	612	{
468	ssize_t res;	613	ssize_t res;
469		614
470	if (!count)	615	if (!count)
471	return 0;	616	return 0;
…		…
553		698
554	return res;	699	return res;
555	}	700	}
556		701
557	/* read a full directory */	702	/* read a full directory */
558	static int
559	scandir_ (const char path, void *namesp)	703	static int scandir_ (const char path, void *namesp)
560	{	704	{
561	DIR *dirp = opendir (path);	705	DIR *dirp = opendir (path);
562	union	706	union
563	{	707	{
564	struct dirent d;	708	struct dirent d;
…		…
618	return res;	762	return res;
619	}	763	}
620		764
621	/*****************************************************************************/	765	/*****************************************************************************/
622		766
623	static void *
624	aio_proc (void *thr_arg)	767	static void aio_proc (void thr_arg)
625	{	768	{
626	aio_req req;	769	aio_req req;
627	int type;	770	int type;
628		771
629	do	772	do
…		…
648		791
649	pthread_mutex_unlock (&reqlock);	792	pthread_mutex_unlock (&reqlock);
650		793
651	errno = 0; /* strictly unnecessary */	794	errno = 0; /* strictly unnecessary */
652		795
653	type = req->type;	796	if (!(req->flags & FLAG_CANCELLED))
654		797	switch (type = req->type) /* remember type for QUIT check */
655	switch (type)
656	{	798	{
657	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	799	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;	800	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
659		801
660	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	802	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;	803	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
662		804
663	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	805	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
664	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	806	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
665	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	807	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
666		808
667	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	809	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
668	case REQ_CLOSE: req->result = close (req->fd); break;	810	case REQ_CLOSE: req->result = close (req->fd); break;
669	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	811	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
670	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	812	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
671	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	813	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
672	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	814	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
673	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	815	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
674		816
675	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	817	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
676	case REQ_FSYNC: req->result = fsync (req->fd); break;	818	case REQ_FSYNC: req->result = fsync (req->fd); break;
677	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	819	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
678		820
		821	case REQ_SLEEP:
		822	{
		823	struct timeval tv;
		824
		825	tv.tv_sec = req->fd;
		826	tv.tv_usec = req->fd2;
		827
		828	req->result = select (0, 0, 0, 0, &tv);
		829	}
		830
		831	case REQ_GROUP:
		832	case REQ_NOP:
679	case REQ_QUIT:	833	case REQ_QUIT:
680	break;	834	break;
681		835
682	default:	836	default:
683	req->result = ENOSYS;	837	req->result = ENOSYS;
684	break;	838	break;
685	}	839	}
686		840
687	req->errorno = errno;	841	req->errorno = errno;
688		842
689	pthread_mutex_lock (&reslock);	843	pthread_mutex_lock (&reslock);
690		844
…		…
744		898
745	while (reqs)	899	while (reqs)
746	{	900	{
747	prv = reqs;	901	prv = reqs;
748	reqs = prv->next;	902	reqs = prv->next;
749	free_req (prv);	903	req_free (prv);
750	}	904	}
751		905
752	reqs = reqe = 0;	906	reqs = reqe = 0;
753		907
754	while (ress)	908	while (ress)
755	{	909	{
756	prv = ress;	910	prv = ress;
757	ress = prv->next;	911	ress = prv->next;
758	free_req (prv);	912	req_free (prv);
759	}	913	}
760		914
761	ress = rese = 0;	915	ress = rese = 0;
762		916
763	close (respipe [0]);	917	close (respipe [0]);
…		…
769		923
770	#define dREQ \	924	#define dREQ \
771	aio_req req; \	925	aio_req req; \
772	\	926	\
773	if (SvOK (callback) && !SvROK (callback)) \	927	if (SvOK (callback) && !SvROK (callback)) \
774	croak ("clalback must be undef or of reference type"); \	928	croak ("callback must be undef or of reference type"); \
775	\	929	\
776	Newz (0, req, 1, aio_cb); \	930	Newz (0, req, 1, aio_cb); \
777	if (!req) \	931	if (!req) \
778	croak ("out of memory during aio_req allocation"); \	932	croak ("out of memory during aio_req allocation"); \
779	\	933	\
780	req->callback = newSVsv (callback);	934	req->callback = newSVsv (callback)
		935
		936	#define REQ_SEND \
		937	req_send (req); \
		938	\
		939	if (GIMME_V != G_VOID) \
		940	XPUSHs (req_sv (req, AIO_REQ_KLASS));
781		941
782	MODULE = IO::AIO PACKAGE = IO::AIO	942	MODULE = IO::AIO PACKAGE = IO::AIO
783		943
784	PROTOTYPES: ENABLE	944	PROTOTYPES: ENABLE
785		945
…		…
817	SV * pathname	977	SV * pathname
818	int flags	978	int flags
819	int mode	979	int mode
820	SV * callback	980	SV * callback
821	PROTOTYPE: $$$;$	981	PROTOTYPE: $$$;$
822	CODE:	982	PPCODE:
823	{	983	{
824	dREQ;	984	dREQ;
825		985
826	req->type = REQ_OPEN;	986	req->type = REQ_OPEN;
827	req->data = newSVsv (pathname);	987	req->data = newSVsv (pathname);
828	req->dataptr = SvPVbyte_nolen (req->data);	988	req->dataptr = SvPVbyte_nolen (req->data);
829	req->fd = flags;	989	req->fd = flags;
830	req->mode = mode;	990	req->mode = mode;
831		991
832	send_req (req);	992	REQ_SEND;
833	}	993	}
834		994
835	void	995	void
836	aio_close (fh,callback=&PL_sv_undef)	996	aio_close (fh,callback=&PL_sv_undef)
837	SV * fh	997	SV * fh
…		…
839	PROTOTYPE: $;$	999	PROTOTYPE: $;$
840	ALIAS:	1000	ALIAS:
841	aio_close = REQ_CLOSE	1001	aio_close = REQ_CLOSE
842	aio_fsync = REQ_FSYNC	1002	aio_fsync = REQ_FSYNC
843	aio_fdatasync = REQ_FDATASYNC	1003	aio_fdatasync = REQ_FDATASYNC
844	CODE:	1004	PPCODE:
845	{	1005	{
846	dREQ;	1006	dREQ;
847		1007
848	req->type = ix;	1008	req->type = ix;
849	req->fh = newSVsv (fh);	1009	req->fh = newSVsv (fh);
850	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1010	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
851		1011
852	send_req (req);	1012	REQ_SEND (req);
853	}	1013	}
854		1014
855	void	1015	void
856	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1016	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
857	SV * fh	1017	SV * fh
…		…
862	SV * callback	1022	SV * callback
863	ALIAS:	1023	ALIAS:
864	aio_read = REQ_READ	1024	aio_read = REQ_READ
865	aio_write = REQ_WRITE	1025	aio_write = REQ_WRITE
866	PROTOTYPE: $$$$$;$	1026	PROTOTYPE: $$$$$;$
867	CODE:	1027	PPCODE:
868	{	1028	{
869	aio_req req;	1029	aio_req req;
870	STRLEN svlen;	1030	STRLEN svlen;
871	char *svptr = SvPVbyte (data, svlen);	1031	char *svptr = SvPVbyte (data, svlen);
872		1032
…		…
910	{	1070	{
911	SvREADONLY_on (data);	1071	SvREADONLY_on (data);
912	req->data2ptr = (void *)data;	1072	req->data2ptr = (void *)data;
913	}	1073	}
914		1074
915	send_req (req);	1075	REQ_SEND;
916	}	1076	}
917	}	1077	}
918		1078
919	void	1079	void
920	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1080	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
…		…
922	SV * in_fh	1082	SV * in_fh
923	UV in_offset	1083	UV in_offset
924	UV length	1084	UV length
925	SV * callback	1085	SV * callback
926	PROTOTYPE: $$$$;$	1086	PROTOTYPE: $$$$;$
927	CODE:	1087	PPCODE:
928	{	1088	{
929	dREQ;	1089	dREQ;
930		1090
931	req->type = REQ_SENDFILE;	1091	req->type = REQ_SENDFILE;
932	req->fh = newSVsv (out_fh);	1092	req->fh = newSVsv (out_fh);
…		…
934	req->fh2 = newSVsv (in_fh);	1094	req->fh2 = newSVsv (in_fh);
935	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1095	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
936	req->offset = in_offset;	1096	req->offset = in_offset;
937	req->length = length;	1097	req->length = length;
938		1098
939	send_req (req);	1099	REQ_SEND;
940	}	1100	}
941		1101
942	void	1102	void
943	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1103	aio_readahead (fh,offset,length,callback=&PL_sv_undef)
944	SV * fh	1104	SV * fh
945	UV offset	1105	UV offset
946	IV length	1106	IV length
947	SV * callback	1107	SV * callback
948	PROTOTYPE: $$$;$	1108	PROTOTYPE: $$$;$
949	CODE:	1109	PPCODE:
950	{	1110	{
951	dREQ;	1111	dREQ;
952		1112
953	req->type = REQ_READAHEAD;	1113	req->type = REQ_READAHEAD;
954	req->fh = newSVsv (fh);	1114	req->fh = newSVsv (fh);
955	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1115	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
956	req->offset = offset;	1116	req->offset = offset;
957	req->length = length;	1117	req->length = length;
958		1118
959	send_req (req);	1119	REQ_SEND;
960	}	1120	}
961		1121
962	void	1122	void
963	aio_stat (fh_or_path,callback=&PL_sv_undef)	1123	aio_stat (fh_or_path,callback=&PL_sv_undef)
964	SV * fh_or_path	1124	SV * fh_or_path
965	SV * callback	1125	SV * callback
966	ALIAS:	1126	ALIAS:
967	aio_stat = REQ_STAT	1127	aio_stat = REQ_STAT
968	aio_lstat = REQ_LSTAT	1128	aio_lstat = REQ_LSTAT
969	CODE:	1129	PPCODE:
970	{	1130	{
971	dREQ;	1131	dREQ;
972		1132
973	New (0, req->statdata, 1, Stat_t);	1133	New (0, req->statdata, 1, Stat_t);
974	if (!req->statdata)	1134	if (!req->statdata)
975	{	1135	{
976	free_req (req);	1136	req_free (req);
977	croak ("out of memory during aio_req->statdata allocation");	1137	croak ("out of memory during aio_req->statdata allocation");
978	}	1138	}
979		1139
980	if (SvPOK (fh_or_path))	1140	if (SvPOK (fh_or_path))
981	{	1141	{
…		…
988	req->type = REQ_FSTAT;	1148	req->type = REQ_FSTAT;
989	req->fh = newSVsv (fh_or_path);	1149	req->fh = newSVsv (fh_or_path);
990	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1150	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
991	}	1151	}
992		1152
993	send_req (req);	1153	REQ_SEND;
994	}	1154	}
995		1155
996	void	1156	void
997	aio_unlink (pathname,callback=&PL_sv_undef)	1157	aio_unlink (pathname,callback=&PL_sv_undef)
998	SV * pathname	1158	SV * pathname
999	SV * callback	1159	SV * callback
1000	ALIAS:	1160	ALIAS:
1001	aio_unlink = REQ_UNLINK	1161	aio_unlink = REQ_UNLINK
1002	aio_rmdir = REQ_RMDIR	1162	aio_rmdir = REQ_RMDIR
1003	aio_readdir = REQ_READDIR	1163	aio_readdir = REQ_READDIR
1004	CODE:	1164	PPCODE:
1005	{	1165	{
1006	dREQ;	1166	dREQ;
1007		1167
1008	req->type = ix;	1168	req->type = ix;
1009	req->data = newSVsv (pathname);	1169	req->data = newSVsv (pathname);
1010	req->dataptr = SvPVbyte_nolen (req->data);	1170	req->dataptr = SvPVbyte_nolen (req->data);
1011		1171
1012	send_req (req);	1172	REQ_SEND;
1013	}	1173	}
1014		1174
1015	void	1175	void
1016	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1176	aio_link (oldpath,newpath,callback=&PL_sv_undef)
1017	SV * oldpath	1177	SV * oldpath
…		…
1019	SV * callback	1179	SV * callback
1020	ALIAS:	1180	ALIAS:
1021	aio_link = REQ_LINK	1181	aio_link = REQ_LINK
1022	aio_symlink = REQ_SYMLINK	1182	aio_symlink = REQ_SYMLINK
1023	aio_rename = REQ_RENAME	1183	aio_rename = REQ_RENAME
1024	CODE:	1184	PPCODE:
1025	{	1185	{
1026	dREQ;	1186	dREQ;
1027		1187
1028	req->type = ix;	1188	req->type = ix;
1029	req->fh = newSVsv (oldpath);	1189	req->fh = newSVsv (oldpath);
1030	req->data2ptr = SvPVbyte_nolen (req->fh);	1190	req->data2ptr = SvPVbyte_nolen (req->fh);
1031	req->data = newSVsv (newpath);	1191	req->data = newSVsv (newpath);
1032	req->dataptr = SvPVbyte_nolen (req->data);	1192	req->dataptr = SvPVbyte_nolen (req->data);
1033		1193
1034	send_req (req);	1194	REQ_SEND;
1035	}	1195	}
1036		1196
1037	#if 0
1038
1039	# undocumented, because it does not cancel active requests
1040	void	1197	void
1041	cancel_most_requests ()	1198	aio_sleep (delay,callback=&PL_sv_undef)
		1199	double delay
		1200	SV * callback
		1201	PPCODE:
		1202	{
		1203	dREQ;
		1204
		1205	req->type = REQ_SLEEP;
		1206	req->fd = delay < 0. ? 0 : delay;
		1207	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
		1208
		1209	REQ_SEND;
		1210	}
		1211
		1212	void
		1213	aio_group (callback=&PL_sv_undef)
		1214	SV * callback
1042	PROTOTYPE:	1215	PROTOTYPE: ;$
1043	CODE:	1216	PPCODE:
1044	{	1217	{
1045	aio_req *req;	1218	dREQ;
1046		1219	req->type = REQ_GROUP;
1047	pthread_mutex_lock (&reqlock);	1220	req_send (req);
1048	for (req = reqs; req; req = req->next)	1221	XPUSHs (req_sv (req, AIO_GRP_KLASS));
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	}	1222	}
1057		1223
1058	#endif	1224	void
		1225	aio_nop (callback=&PL_sv_undef)
		1226	SV * callback
		1227	PPCODE:
		1228	{
		1229	dREQ;
		1230
		1231	req->type = REQ_NOP;
		1232
		1233	REQ_SEND;
		1234	}
1059		1235
1060	void	1236	void
1061	flush ()	1237	flush ()
1062	PROTOTYPE:	1238	PROTOTYPE:
1063	CODE:	1239	CODE:
…		…
1106	CODE:	1282	CODE:
1107	RETVAL = nreqs;	1283	RETVAL = nreqs;
1108	OUTPUT:	1284	OUTPUT:
1109	RETVAL	1285	RETVAL
1110		1286
		1287	PROTOTYPES: DISABLE
		1288
		1289	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
		1290
		1291	void
		1292	cancel (aio_req_ornot req)
		1293	PROTOTYPE:
		1294	CODE:
		1295	req_cancel (req);
		1296
		1297	void
		1298	cb (aio_req req, SV *callback=&PL_sv_undef)
		1299	CODE:
		1300	SvREFCNT_dec (req->callback);
		1301	req->callback = newSVsv (callback);
		1302
		1303	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
		1304
		1305	void
		1306	add (aio_req grp, ...)
		1307	PPCODE:
		1308	{
		1309	int i;
		1310	aio_req req;
		1311
		1312	if (grp->fd == 2)
		1313	croak ("cannot add requests to IO::AIO::GRP after the group finished");
		1314
		1315	for (i = 1; i < items; ++i )
		1316	{
		1317	if (GIMME_V != G_VOID)
		1318	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1319
		1320	req = SvAIO_REQ (ST (i));
		1321
		1322	if (req)
		1323	{
		1324	++grp->length;
		1325	req->grp = grp;
		1326
		1327	req->grp_prev = 0;
		1328	req->grp_next = grp->grp_first;
		1329
		1330	if (grp->grp_first)
		1331	grp->grp_first->grp_prev = req;
		1332
		1333	grp->grp_first = req;
		1334	}
		1335	}
		1336	}
		1337
		1338	void
		1339	result (aio_req grp, ...)
		1340	CODE:
		1341	{
		1342	int i;
		1343	AV *av = newAV ();
		1344
		1345	for (i = 1; i < items; ++i )
		1346	av_push (av, newSVsv (ST (i)));
		1347
		1348	SvREFCNT_dec (grp->data);
		1349	grp->data = (SV *)av;
		1350	}
		1351
		1352	void
		1353	feed_limit (aio_req grp, int limit)
		1354	CODE:
		1355	grp->fd2 = limit;
		1356	aio_grp_feed (grp);
		1357
		1358	void
		1359	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1360	CODE:
		1361	{
		1362	SvREFCNT_dec (grp->fh2);
		1363	grp->fh2 = newSVsv (callback);
		1364
		1365	if (grp->fd2 <= 0)
		1366	grp->fd2 = 2;
		1367
		1368	aio_grp_feed (grp);
		1369	}
		1370

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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 1.58 by root, Mon Oct 23 18:48:08 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 1.58 by root, Mon Oct 23 18:48:08 2006 UTC