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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.37 by root, Tue Aug 23 12:37:19 2005 UTC vs.
Revision 1.53 by root, Mon Oct 23 00:17:07 2006 UTC

…		…
8	#include "autoconf/config.h"	8	#include "autoconf/config.h"
9		9
10	#include <pthread.h>	10	#include <pthread.h>
11		11
12	#include <stddef.h>	12	#include <stddef.h>
		13	#include <errno.h>
		14	#include <sys/time.h>
		15	#include <sys/select.h>
13	#include <sys/types.h>	16	#include <sys/types.h>
14	#include <sys/stat.h>	17	#include <sys/stat.h>
15	#include <limits.h>	18	#include <limits.h>
16	#include <unistd.h>	19	#include <unistd.h>
17	#include <fcntl.h>	20	#include <fcntl.h>
…		…
31	# else	34	# else
32	# error sendfile support requested but not available	35	# error sendfile support requested but not available
33	# endif	36	# endif
34	#endif	37	#endif
35		38
		39	/* used for struct dirent, AIX doesn't provide it */
		40	#ifndef NAME_MAX
		41	# define NAME_MAX 4096
		42	#endif
		43
36	#if __ia64	44	#if __ia64
37	# define STACKSIZE 65536	45	# define STACKSIZE 65536
38	#else	46	#else
39	# define STACKSIZE 8192	47	# define STACKSIZE 8192
40	#endif	48	#endif
…		…
44	REQ_OPEN, REQ_CLOSE,	52	REQ_OPEN, REQ_CLOSE,
45	REQ_READ, REQ_WRITE, REQ_READAHEAD,	53	REQ_READ, REQ_WRITE, REQ_READAHEAD,
46	REQ_SENDFILE,	54	REQ_SENDFILE,
47	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	55	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
48	REQ_FSYNC, REQ_FDATASYNC,	56	REQ_FSYNC, REQ_FDATASYNC,
49	REQ_UNLINK, REQ_RMDIR,	57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
50	REQ_READDIR,	58	REQ_READDIR,
51	REQ_SYMLINK,	59	REQ_LINK, REQ_SYMLINK,
		60	REQ_SLEEP,
		61	REQ_GROUP,
52	};	62	};
53		63
		64	#define AIO_REQ_KLASS "IO::AIO::REQ"
		65	#define AIO_GRP_KLASS "IO::AIO::GRP"
		66
54	typedef struct aio_cb {	67	typedef struct aio_cb
		68	{
55	struct aio_cb *volatile next;	69	struct aio_cb *volatile next;
56		70
57	int type;	71	struct aio_cb grp, grp_prev, grp_next, grp_first;
58		72
59	/* should receive a cleanup, with unions */	73	SV self; / the perl counterpart of this request, if any */
60	int fd, fd2;	74
		75	SV data, callback;
		76	SV fh, fh2;
		77	void dataptr, data2ptr;
		78	Stat_t *statdata;
61	off_t offset;	79	off_t offset;
62	size_t length;	80	size_t length;
63	ssize_t result;	81	ssize_t result;
		82
		83	int type;
		84	int fd, fd2;
		85	int errorno;
		86	STRLEN dataoffset;
64	mode_t mode; /* open */	87	mode_t mode; /* open */
65	int errorno;	88	unsigned char cancelled;
66	SV data, callback;
67	SV fh, fh2;
68	void dataptr, data2ptr;
69	STRLEN dataoffset;
70
71	Stat_t *statdata;
72	} aio_cb;	89	} aio_cb;
73		90
74	typedef aio_cb *aio_req;	91	typedef aio_cb *aio_req;
		92	typedef aio_cb *aio_req_ornot;
75		93
76	static int started, wanted;	94	static int started, wanted;
77	static volatile int nreqs;	95	static volatile int nreqs;
78	static int max_outstanding = 1<<30;	96	static int max_outstanding = 1<<30;
79	static int respipe [2];	97	static int respipe [2];
…		…
83	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	101	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
84		102
85	static volatile aio_req reqs, reqe; /* queue start, queue end */	103	static volatile aio_req reqs, reqe; /* queue start, queue end */
86	static volatile aio_req ress, rese; /* queue start, queue end */	104	static volatile aio_req ress, rese; /* queue start, queue end */
87		105
		106	static void req_invoke (aio_req req);
88	static void free_req (aio_req req)	107	static void req_free (aio_req req);
89	{
90	if (req->data)
91	SvREFCNT_dec (req->data);
92		108
		109	/* must be called at most once */
		110	static SV req_sv (aio_req req, const char klass)
		111	{
93	if (req->fh)	112	if (!req->self)
94	SvREFCNT_dec (req->fh);	113	{
		114	req->self = (SV *)newHV ();
		115	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		116	}
95		117
96	if (req->fh2)	118	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
		119	}
		120
		121	static aio_req SvAIO_REQ (SV *sv)
		122	{
		123	MAGIC *mg;
		124
		125	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
		126	croak ("object of class " AIO_REQ_KLASS " expected");
		127
		128	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
		129
		130	return mg ? (aio_req)mg->mg_ptr : 0;
		131	}
		132
		133	static void aio_grp_feed (aio_req grp)
		134	{
		135	while (grp->length < grp->fd2)
		136	{
		137	int old_len = grp->length;
		138
		139	if (grp->fh2 && SvOK (grp->fh2))
		140	{
		141	dSP;
		142
		143	ENTER;
		144	SAVETMPS;
		145	PUSHMARK (SP);
		146	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		147	PUTBACK;
		148	call_sv (grp->fh2, G_VOID \| G_EVAL);
		149	SPAGAIN;
		150	FREETMPS;
		151	LEAVE;
		152	}
		153
		154	/* stop if no progress has been made */
		155	if (old_len == grp->length)
		156	{
97	SvREFCNT_dec (req->fh2);	157	SvREFCNT_dec (grp->fh2);
98		158	grp->fh2 = 0;
99	if (req->statdata)	159	break;
100	Safefree (req->statdata);	160	}
101		161	}
102	if (req->callback)
103	SvREFCNT_dec (req->callback);
104
105	if (req->type == REQ_READDIR && req->result >= 0)
106	free (req->data2ptr);
107
108	Safefree (req);
109	}	162	}
110		163
111	static void	164	static void aio_grp_dec (aio_req grp)
112	poll_wait ()	165	{
		166	--grp->length;
		167
		168	/* call feeder, if applicable */
		169	aio_grp_feed (grp);
		170
		171	/* finish, if done */
		172	if (!grp->length && grp->fd)
		173	{
		174	req_invoke (grp);
		175	req_free (grp);
		176	}
		177	}
		178
		179	static void poll_wait ()
113	{	180	{
114	if (nreqs && !ress)	181	if (nreqs && !ress)
115	{	182	{
116	fd_set rfd;	183	fd_set rfd;
117	FD_ZERO(&rfd);	184	FD_ZERO(&rfd);
…		…
119		186
120	select (respipe [0] + 1, &rfd, 0, 0, 0);	187	select (respipe [0] + 1, &rfd, 0, 0, 0);
121	}	188	}
122	}	189	}
123		190
124	static int	191	static void req_invoke (aio_req req)
125	poll_cb ()	192	{
		193	dSP;
		194	int errorno = errno;
		195
		196	if (req->cancelled \|\| !SvOK (req->callback))
		197	return;
		198
		199	errno = req->errorno;
		200
		201	ENTER;
		202	SAVETMPS;
		203	PUSHMARK (SP);
		204	EXTEND (SP, 1);
		205
		206	switch (req->type)
		207	{
		208	case REQ_READDIR:
		209	{
		210	SV *rv = &PL_sv_undef;
		211
		212	if (req->result >= 0)
		213	{
		214	char *buf = req->data2ptr;
		215	AV *av = newAV ();
		216
		217	while (req->result)
		218	{
		219	SV *sv = newSVpv (buf, 0);
		220
		221	av_push (av, sv);
		222	buf += SvCUR (sv) + 1;
		223	req->result--;
		224	}
		225
		226	rv = sv_2mortal (newRV_noinc ((SV *)av));
		227	}
		228
		229	PUSHs (rv);
		230	}
		231	break;
		232
		233	case REQ_OPEN:
		234	{
		235	/* convert fd to fh */
		236	SV *fh;
		237
		238	PUSHs (sv_2mortal (newSViv (req->result)));
		239	PUTBACK;
		240	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		241	SPAGAIN;
		242
		243	fh = SvREFCNT_inc (POPs);
		244
		245	PUSHMARK (SP);
		246	XPUSHs (sv_2mortal (fh));
		247	}
		248	break;
		249
		250	case REQ_GROUP:
		251	req->fd = 2; /* mark group as finished */
		252
		253	if (req->data)
		254	{
		255	int i;
		256	AV av = (AV )req->data;
		257
		258	EXTEND (SP, AvFILL (av) + 1);
		259	for (i = 0; i <= AvFILL (av); ++i)
		260	PUSHs (*av_fetch (av, i, 0));
		261	}
		262	break;
		263
		264	case REQ_SLEEP:
		265	break;
		266
		267	default:
		268	PUSHs (sv_2mortal (newSViv (req->result)));
		269	break;
		270	}
		271
		272
		273	PUTBACK;
		274	call_sv (req->callback, G_VOID \| G_EVAL);
		275	SPAGAIN;
		276
		277	FREETMPS;
		278	LEAVE;
		279
		280	errno = errorno;
		281
		282	if (SvTRUE (ERRSV))
		283	{
		284	req_free (req);
		285	croak (0);
		286	}
		287	}
		288
		289	static void req_free (aio_req req)
		290	{
		291	if (req->grp)
		292	{
		293	aio_req grp = req->grp;
		294
		295	/* unlink request */
		296	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		297	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		298
		299	if (grp->grp_first == req)
		300	grp->grp_first = req->grp_next;
		301
		302	aio_grp_dec (grp);
		303	}
		304
		305	if (req->self)
		306	{
		307	sv_unmagic (req->self, PERL_MAGIC_ext);
		308	SvREFCNT_dec (req->self);
		309	}
		310
		311	SvREFCNT_dec (req->data);
		312	SvREFCNT_dec (req->fh);
		313	SvREFCNT_dec (req->fh2);
		314	SvREFCNT_dec (req->callback);
		315	Safefree (req->statdata);
		316
		317	if (req->type == REQ_READDIR && req->result >= 0)
		318	free (req->data2ptr);
		319
		320	Safefree (req);
		321	}
		322
		323	static void req_cancel (aio_req req)
		324	{
		325	req->cancelled = 1;
		326
		327	if (req->type == REQ_GROUP)
		328	{
		329	aio_req sub;
		330
		331	for (sub = req->grp_first; sub; sub = sub->grp_next)
		332	req_cancel (sub);
		333	}
		334	}
		335
		336	static int poll_cb ()
126	{	337	{
127	dSP;	338	dSP;
128	int count = 0;	339	int count = 0;
129	int do_croak = 0;	340	int do_croak = 0;
130	aio_req req;	341	aio_req req;
…		…
152	pthread_mutex_unlock (&reslock);	363	pthread_mutex_unlock (&reslock);
153		364
154	if (!req)	365	if (!req)
155	break;	366	break;
156		367
157	nreqs--;	368	--nreqs;
158		369
159	if (req->type == REQ_QUIT)	370	if (req->type == REQ_QUIT)
160	started--;	371	started--;
		372	else if (req->type == REQ_GROUP && req->length)
		373	{
		374	req->fd = 1; /* mark request as delayed */
		375	continue;
		376	}
161	else	377	else
162	{	378	{
163	int errorno = errno;
164	errno = req->errorno;
165
166	if (req->type == REQ_READ)	379	if (req->type == REQ_READ)
167	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	380	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
168		381
169	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	382	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
170	SvREADONLY_off (req->data);	383	SvREADONLY_off (req->data);
…		…
174	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	387	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
175	PL_laststatval = req->result;	388	PL_laststatval = req->result;
176	PL_statcache = *(req->statdata);	389	PL_statcache = *(req->statdata);
177	}	390	}
178		391
179	ENTER;	392	req_invoke (req);
180	PUSHMARK (SP);
181		393
182	if (req->type == REQ_READDIR)
183	{
184	SV *rv = &PL_sv_undef;
185
186	if (req->result >= 0)
187	{
188	char *buf = req->data2ptr;
189	AV *av = newAV ();
190
191	while (req->result)
192	{
193	SV *sv = newSVpv (buf, 0);
194
195	av_push (av, sv);
196	buf += SvCUR (sv) + 1;
197	req->result--;
198	}
199
200	rv = sv_2mortal (newRV_noinc ((SV *)av));
201	}
202
203	XPUSHs (rv);
204	}
205	else
206	{
207	XPUSHs (sv_2mortal (newSViv (req->result)));
208
209	if (req->type == REQ_OPEN)
210	{
211	/* convert fd to fh */
212	SV *fh;
213
214	PUTBACK;
215	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
216	SPAGAIN;
217
218	fh = SvREFCNT_inc (POPs);
219
220	PUSHMARK (SP);
221	XPUSHs (sv_2mortal (fh));
222	}
223	}
224
225	if (SvOK (req->callback))
226	{
227	PUTBACK;
228	call_sv (req->callback, G_VOID \| G_EVAL);
229	SPAGAIN;
230
231	if (SvTRUE (ERRSV))
232	{
233	free_req (req);
234	croak (0);
235	}
236	}
237
238	LEAVE;
239
240	errno = errorno;
241	count++;	394	count++;
242	}	395	}
243		396
244	free_req (req);	397	req_free (req);
245	}	398	}
246		399
247	return count;	400	return count;
248	}	401	}
249		402
250	static void aio_proc(void arg);	403	static void aio_proc(void arg);
251		404
252	static void
253	start_thread (void)	405	static void start_thread (void)
254	{	406	{
255	sigset_t fullsigset, oldsigset;	407	sigset_t fullsigset, oldsigset;
256	pthread_t tid;	408	pthread_t tid;
257	pthread_attr_t attr;	409	pthread_attr_t attr;
258		410
…		…
267	started++;	419	started++;
268		420
269	sigprocmask (SIG_SETMASK, &oldsigset, 0);	421	sigprocmask (SIG_SETMASK, &oldsigset, 0);
270	}	422	}
271		423
272	static void	424	static void req_send (aio_req req)
273	send_req (aio_req req)
274	{	425	{
275	while (started < wanted && nreqs >= started)	426	while (started < wanted && nreqs >= started)
276	start_thread ();	427	start_thread ();
277		428
278	nreqs++;	429	++nreqs;
279		430
280	pthread_mutex_lock (&reqlock);	431	pthread_mutex_lock (&reqlock);
281		432
282	req->next = 0;	433	req->next = 0;
283		434
…		…
302		453
303	poll_wait ();	454	poll_wait ();
304	}	455	}
305	}	456	}
306		457
307	static void	458	static void end_thread (void)
308	end_thread (void)
309	{	459	{
310	aio_req req;	460	aio_req req;
311	Newz (0, req, 1, aio_cb);	461	Newz (0, req, 1, aio_cb);
312	req->type = REQ_QUIT;	462	req->type = REQ_QUIT;
313		463
314	send_req (req);	464	req_send (req);
315	}	465	}
316		466
317	static void min_parallel (int nthreads)	467	static void min_parallel (int nthreads)
318	{	468	{
319	if (wanted < nthreads)	469	if (wanted < nthreads)
…		…
364	* normal read/write by using a mutex. slows down execution a lot,	514	* normal read/write by using a mutex. slows down execution a lot,
365	* but that's your problem, not mine.	515	* but that's your problem, not mine.
366	*/	516	*/
367	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	517	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
368		518
369	static ssize_t	519	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
370	pread (int fd, void *buf, size_t count, off_t offset)
371	{	520	{
372	ssize_t res;	521	ssize_t res;
373	off_t ooffset;	522	off_t ooffset;
374		523
375	pthread_mutex_lock (&preadwritelock);	524	pthread_mutex_lock (&preadwritelock);
…		…
380	pthread_mutex_unlock (&preadwritelock);	529	pthread_mutex_unlock (&preadwritelock);
381		530
382	return res;	531	return res;
383	}	532	}
384		533
385	static ssize_t
386	pwrite (int fd, void *buf, size_t count, off_t offset)	534	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
387	{	535	{
388	ssize_t res;	536	ssize_t res;
389	off_t ooffset;	537	off_t ooffset;
390		538
391	pthread_mutex_lock (&preadwritelock);	539	pthread_mutex_lock (&preadwritelock);
…		…
404	#endif	552	#endif
405		553
406	#if !HAVE_READAHEAD	554	#if !HAVE_READAHEAD
407	# define readahead aio_readahead	555	# define readahead aio_readahead
408		556
409	static ssize_t
410	readahead (int fd, off_t offset, size_t count)	557	static ssize_t readahead (int fd, off_t offset, size_t count)
411	{	558	{
412	char readahead_buf[4096];	559	char readahead_buf[4096];
413		560
414	while (count > 0)	561	while (count > 0)
415	{	562	{
…		…
427	#if !HAVE_READDIR_R	574	#if !HAVE_READDIR_R
428	# define readdir_r aio_readdir_r	575	# define readdir_r aio_readdir_r
429		576
430	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	577	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
431		578
432	static int
433	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	579	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
434	{	580	{
435	struct dirent *e;	581	struct dirent *e;
436	int errorno;	582	int errorno;
437		583
438	pthread_mutex_lock (&readdirlock);	584	pthread_mutex_lock (&readdirlock);
…		…
454	return e ? 0 : -1;	600	return e ? 0 : -1;
455	}	601	}
456	#endif	602	#endif
457		603
458	/* sendfile always needs emulation */	604	/* sendfile always needs emulation */
459	static ssize_t
460	sendfile_ (int ofd, int ifd, off_t offset, size_t count)	605	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
461	{	606	{
462	ssize_t res;	607	ssize_t res;
463		608
464	if (!count)	609	if (!count)
465	return 0;	610	return 0;
…		…
499		644
500	if (res < 0 && sbytes)	645	if (res < 0 && sbytes)
501	res = sbytes;	646	res = sbytes;
502	}	647	}
503		648
		649	# endif
504	# else	650	#else
505	res = -1;	651	res = -1;
506	errno = ENOSYS;	652	errno = ENOSYS;
507	# endif
508	#endif	653	#endif
509		654
510	if (res < 0	655	if (res < 0
511	&& (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK	656	&& (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK
512	#if __solaris	657	#if __solaris
…		…
517	{	662	{
518	/* emulate sendfile. this is a major pain in the ass */	663	/* emulate sendfile. this is a major pain in the ass */
519	char buf[4096];	664	char buf[4096];
520	res = 0;	665	res = 0;
521		666
522	for (;;)	667	while (count)
523	{	668	{
524	ssize_t cnt;	669	ssize_t cnt;
525		670
526	cnt = pread (ifd, buf, 4096, offset);	671	cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
527		672
528	if (cnt <= 0)	673	if (cnt <= 0)
529	{	674	{
530	if (cnt && !res) res = -1;	675	if (cnt && !res) res = -1;
531	break;	676	break;
…		…
539	break;	684	break;
540	}	685	}
541		686
542	offset += cnt;	687	offset += cnt;
543	res += cnt;	688	res += cnt;
		689	count -= cnt;
544	}	690	}
545	}	691	}
546		692
547	return res;	693	return res;
548	}	694	}
549		695
550	/* read a full directory */	696	/* read a full directory */
551	static int
552	scandir_ (const char path, void *namesp)	697	static int scandir_ (const char path, void *namesp)
553	{	698	{
554	DIR *dirp = opendir (path);	699	DIR *dirp = opendir (path);
555	union	700	union
556	{	701	{
557	struct dirent d;	702	struct dirent d;
…		…
611	return res;	756	return res;
612	}	757	}
613		758
614	/*****************************************************************************/	759	/*****************************************************************************/
615		760
616	static void *
617	aio_proc (void *thr_arg)	761	static void aio_proc (void thr_arg)
618	{	762	{
619	aio_req req;	763	aio_req req;
620	int type;	764	int type;
621		765
622	do	766	do
…		…
641		785
642	pthread_mutex_unlock (&reqlock);	786	pthread_mutex_unlock (&reqlock);
643		787
644	errno = 0; /* strictly unnecessary */	788	errno = 0; /* strictly unnecessary */
645		789
646	type = req->type;	790	if (!req->cancelled)
647		791	switch (type = req->type) /* remember type for QUIT check */
648	switch (type)
649	{	792	{
650	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	793	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
651	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	794	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
652		795
653	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	796	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
654	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;	797	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
655		798
656	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	799	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
657	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	800	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
658	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	801	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
659		802
660	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	803	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
661	case REQ_CLOSE: req->result = close (req->fd); break;	804	case REQ_CLOSE: req->result = close (req->fd); break;
662	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	805	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
663	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	806	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		807	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
		808	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
664	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	809	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
665		810
666	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	811	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
667	case REQ_FSYNC: req->result = fsync (req->fd); break;	812	case REQ_FSYNC: req->result = fsync (req->fd); break;
668	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	813	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
669		814
		815	case REQ_SLEEP:
		816	{
		817	struct timeval tv;
		818
		819	tv.tv_sec = req->fd;
		820	tv.tv_usec = req->fd2;
		821
		822	req->result = select (0, 0, 0, 0, &tv);
		823	}
		824
670	case REQ_QUIT:	825	case REQ_QUIT:
671	break;	826	break;
672		827
673	default:	828	default:
674	req->result = ENOSYS;	829	req->result = ENOSYS;
675	break;	830	break;
676	}	831	}
677		832
678	req->errorno = errno;	833	req->errorno = errno;
679		834
680	pthread_mutex_lock (&reslock);	835	pthread_mutex_lock (&reslock);
681		836
…		…
735		890
736	while (reqs)	891	while (reqs)
737	{	892	{
738	prv = reqs;	893	prv = reqs;
739	reqs = prv->next;	894	reqs = prv->next;
740	free_req (prv);	895	req_free (prv);
741	}	896	}
742		897
743	reqs = reqe = 0;	898	reqs = reqe = 0;
744		899
745	while (ress)	900	while (ress)
746	{	901	{
747	prv = ress;	902	prv = ress;
748	ress = prv->next;	903	ress = prv->next;
749	free_req (prv);	904	req_free (prv);
750	}	905	}
751		906
752	ress = rese = 0;	907	ress = rese = 0;
753		908
754	close (respipe [0]);	909	close (respipe [0]);
…		…
760		915
761	#define dREQ \	916	#define dREQ \
762	aio_req req; \	917	aio_req req; \
763	\	918	\
764	if (SvOK (callback) && !SvROK (callback)) \	919	if (SvOK (callback) && !SvROK (callback)) \
765	croak ("clalback must be undef or of reference type"); \	920	croak ("callback must be undef or of reference type"); \
766	\	921	\
767	Newz (0, req, 1, aio_cb); \	922	Newz (0, req, 1, aio_cb); \
768	if (!req) \	923	if (!req) \
769	croak ("out of memory during aio_req allocation"); \	924	croak ("out of memory during aio_req allocation"); \
770	\	925	\
771	req->callback = newSVsv (callback);	926	req->callback = newSVsv (callback)
		927
		928	#define REQ_SEND \
		929	req_send (req); \
		930	\
		931	if (GIMME_V != G_VOID) \
		932	XPUSHs (req_sv (req, AIO_REQ_KLASS));
772		933
773	MODULE = IO::AIO PACKAGE = IO::AIO	934	MODULE = IO::AIO PACKAGE = IO::AIO
774		935
775	PROTOTYPES: ENABLE	936	PROTOTYPES: ENABLE
776		937
777	BOOT:	938	BOOT:
778	{	939	{
		940	HV *stash = gv_stashpv ("IO::AIO", 1);
		941	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
		942	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
		943	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		944
779	create_pipe ();	945	create_pipe ();
780	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	946	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
781	}	947	}
782		948
783	void	949	void
784	min_parallel(nthreads)	950	min_parallel (nthreads)
785	int nthreads	951	int nthreads
786	PROTOTYPE: $	952	PROTOTYPE: $
787		953
788	void	954	void
789	max_parallel(nthreads)	955	max_parallel (nthreads)
790	int nthreads	956	int nthreads
791	PROTOTYPE: $	957	PROTOTYPE: $
792		958
793	int	959	int
794	max_outstanding(nreqs)	960	max_outstanding (nreqs)
795	int nreqs	961	int nreqs
796	PROTOTYPE: $	962	PROTOTYPE: $
797	CODE:	963	CODE:
798	RETVAL = max_outstanding;	964	RETVAL = max_outstanding;
799	max_outstanding = nreqs;	965	max_outstanding = nreqs;
800		966
801	void	967	void
802	aio_open(pathname,flags,mode,callback=&PL_sv_undef)	968	aio_open (pathname,flags,mode,callback=&PL_sv_undef)
803	SV * pathname	969	SV * pathname
804	int flags	970	int flags
805	int mode	971	int mode
806	SV * callback	972	SV * callback
807	PROTOTYPE: $$$;$	973	PROTOTYPE: $$$;$
808	CODE:	974	PPCODE:
809	{	975	{
810	dREQ;	976	dREQ;
811		977
812	req->type = REQ_OPEN;	978	req->type = REQ_OPEN;
813	req->data = newSVsv (pathname);	979	req->data = newSVsv (pathname);
814	req->dataptr = SvPVbyte_nolen (req->data);	980	req->dataptr = SvPVbyte_nolen (req->data);
815	req->fd = flags;	981	req->fd = flags;
816	req->mode = mode;	982	req->mode = mode;
817		983
818	send_req (req);	984	REQ_SEND;
819	}	985	}
820		986
821	void	987	void
822	aio_close(fh,callback=&PL_sv_undef)	988	aio_close (fh,callback=&PL_sv_undef)
823	SV * fh	989	SV * fh
824	SV * callback	990	SV * callback
825	PROTOTYPE: $;$	991	PROTOTYPE: $;$
826	ALIAS:	992	ALIAS:
827	aio_close = REQ_CLOSE	993	aio_close = REQ_CLOSE
828	aio_fsync = REQ_FSYNC	994	aio_fsync = REQ_FSYNC
829	aio_fdatasync = REQ_FDATASYNC	995	aio_fdatasync = REQ_FDATASYNC
830	CODE:	996	PPCODE:
831	{	997	{
832	dREQ;	998	dREQ;
833		999
834	req->type = ix;	1000	req->type = ix;
835	req->fh = newSVsv (fh);	1001	req->fh = newSVsv (fh);
836	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1002	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
837		1003
838	send_req (req);	1004	REQ_SEND (req);
839	}	1005	}
840		1006
841	void	1007	void
842	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1008	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
843	SV * fh	1009	SV * fh
844	UV offset	1010	UV offset
845	UV length	1011	UV length
846	SV * data	1012	SV * data
847	UV dataoffset	1013	UV dataoffset
848	SV * callback	1014	SV * callback
849	ALIAS:	1015	ALIAS:
850	aio_read = REQ_READ	1016	aio_read = REQ_READ
851	aio_write = REQ_WRITE	1017	aio_write = REQ_WRITE
852	PROTOTYPE: $$$$$;$	1018	PROTOTYPE: $$$$$;$
853	CODE:	1019	PPCODE:
854	{	1020	{
855	aio_req req;	1021	aio_req req;
856	STRLEN svlen;	1022	STRLEN svlen;
857	char *svptr = SvPVbyte (data, svlen);	1023	char *svptr = SvPVbyte (data, svlen);
858		1024
…		…
896	{	1062	{
897	SvREADONLY_on (data);	1063	SvREADONLY_on (data);
898	req->data2ptr = (void *)data;	1064	req->data2ptr = (void *)data;
899	}	1065	}
900		1066
901	send_req (req);	1067	REQ_SEND;
902	}	1068	}
903	}	1069	}
904		1070
905	void	1071	void
906	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1072	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
907	SV * out_fh	1073	SV * out_fh
908	SV * in_fh	1074	SV * in_fh
909	UV in_offset	1075	UV in_offset
910	UV length	1076	UV length
911	SV * callback	1077	SV * callback
912	PROTOTYPE: $$$$;$	1078	PROTOTYPE: $$$$;$
913	CODE:	1079	PPCODE:
914	{	1080	{
915	dREQ;	1081	dREQ;
916		1082
917	req->type = REQ_SENDFILE;	1083	req->type = REQ_SENDFILE;
918	req->fh = newSVsv (out_fh);	1084	req->fh = newSVsv (out_fh);
…		…
920	req->fh2 = newSVsv (in_fh);	1086	req->fh2 = newSVsv (in_fh);
921	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1087	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
922	req->offset = in_offset;	1088	req->offset = in_offset;
923	req->length = length;	1089	req->length = length;
924		1090
925	send_req (req);	1091	REQ_SEND;
926	}	1092	}
927		1093
928	void	1094	void
929	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	1095	aio_readahead (fh,offset,length,callback=&PL_sv_undef)
930	SV * fh	1096	SV * fh
931	UV offset	1097	UV offset
932	IV length	1098	IV length
933	SV * callback	1099	SV * callback
934	PROTOTYPE: $$$;$	1100	PROTOTYPE: $$$;$
935	CODE:	1101	PPCODE:
936	{	1102	{
937	dREQ;	1103	dREQ;
938		1104
939	req->type = REQ_READAHEAD;	1105	req->type = REQ_READAHEAD;
940	req->fh = newSVsv (fh);	1106	req->fh = newSVsv (fh);
941	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1107	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
942	req->offset = offset;	1108	req->offset = offset;
943	req->length = length;	1109	req->length = length;
944		1110
945	send_req (req);	1111	REQ_SEND;
946	}	1112	}
947		1113
948	void	1114	void
949	aio_stat(fh_or_path,callback=&PL_sv_undef)	1115	aio_stat (fh_or_path,callback=&PL_sv_undef)
950	SV * fh_or_path	1116	SV * fh_or_path
951	SV * callback	1117	SV * callback
952	ALIAS:	1118	ALIAS:
953	aio_stat = REQ_STAT	1119	aio_stat = REQ_STAT
954	aio_lstat = REQ_LSTAT	1120	aio_lstat = REQ_LSTAT
955	CODE:	1121	PPCODE:
956	{	1122	{
957	dREQ;	1123	dREQ;
958		1124
959	New (0, req->statdata, 1, Stat_t);	1125	New (0, req->statdata, 1, Stat_t);
960	if (!req->statdata)	1126	if (!req->statdata)
961	{	1127	{
962	free_req (req);	1128	req_free (req);
963	croak ("out of memory during aio_req->statdata allocation");	1129	croak ("out of memory during aio_req->statdata allocation");
964	}	1130	}
965		1131
966	if (SvPOK (fh_or_path))	1132	if (SvPOK (fh_or_path))
967	{	1133	{
…		…
974	req->type = REQ_FSTAT;	1140	req->type = REQ_FSTAT;
975	req->fh = newSVsv (fh_or_path);	1141	req->fh = newSVsv (fh_or_path);
976	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1142	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
977	}	1143	}
978		1144
979	send_req (req);	1145	REQ_SEND;
980	}	1146	}
981		1147
982	void	1148	void
983	aio_unlink(pathname,callback=&PL_sv_undef)	1149	aio_unlink (pathname,callback=&PL_sv_undef)
984	SV * pathname	1150	SV * pathname
985	SV * callback	1151	SV * callback
986	ALIAS:	1152	ALIAS:
987	aio_unlink = REQ_UNLINK	1153	aio_unlink = REQ_UNLINK
988	aio_rmdir = REQ_RMDIR	1154	aio_rmdir = REQ_RMDIR
		1155	aio_readdir = REQ_READDIR
989	CODE:	1156	PPCODE:
990	{	1157	{
991	dREQ;	1158	dREQ;
992		1159
993	req->type = ix;	1160	req->type = ix;
994	req->data = newSVsv (pathname);	1161	req->data = newSVsv (pathname);
995	req->dataptr = SvPVbyte_nolen (req->data);	1162	req->dataptr = SvPVbyte_nolen (req->data);
996		1163
997	send_req (req);	1164	REQ_SEND;
998	}	1165	}
999		1166
1000	void	1167	void
1001	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)	1168	aio_link (oldpath,newpath,callback=&PL_sv_undef)
1002	SV * oldpath	1169	SV * oldpath
1003	SV * newpath	1170	SV * newpath
1004	SV * callback	1171	SV * callback
		1172	ALIAS:
		1173	aio_link = REQ_LINK
		1174	aio_symlink = REQ_SYMLINK
		1175	aio_rename = REQ_RENAME
1005	CODE:	1176	PPCODE:
1006	{	1177	{
1007	dREQ;	1178	dREQ;
1008		1179
1009	req->type = REQ_SYMLINK;	1180	req->type = ix;
1010	req->fh = newSVsv (oldpath);	1181	req->fh = newSVsv (oldpath);
1011	req->data2ptr = SvPVbyte_nolen (req->fh);	1182	req->data2ptr = SvPVbyte_nolen (req->fh);
1012	req->data = newSVsv (newpath);	1183	req->data = newSVsv (newpath);
1013	req->dataptr = SvPVbyte_nolen (req->data);	1184	req->dataptr = SvPVbyte_nolen (req->data);
1014		1185
1015	send_req (req);	1186	REQ_SEND;
1016	}	1187	}
1017		1188
1018	void	1189	void
1019	aio_readdir(pathname,callback=&PL_sv_undef)	1190	aio_sleep (delay,callback=&PL_sv_undef)
1020	SV * pathname	1191	double delay
1021	SV * callback	1192	SV * callback
1022	CODE:	1193	PPCODE:
1023	{	1194	{
1024	dREQ;	1195	dREQ;
1025		1196
1026	req->type = REQ_READDIR;	1197	req->type = REQ_SLEEP;
1027	req->data = newSVsv (pathname);	1198	req->fd = delay < 0. ? 0 : delay;
1028	req->dataptr = SvPVbyte_nolen (req->data);	1199	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1029
1030	send_req (req);
1031	}
1032		1200
		1201	REQ_SEND;
		1202	}
		1203
1033	void	1204	void
		1205	aio_group (callback=&PL_sv_undef)
		1206	SV * callback
		1207	PROTOTYPE: ;$
		1208	PPCODE:
		1209	{
		1210	dREQ;
		1211	req->type = REQ_GROUP;
		1212	req_send (req);
		1213	XPUSHs (req_sv (req, AIO_GRP_KLASS));
		1214	}
		1215
		1216	void
1034	flush()	1217	flush ()
1035	PROTOTYPE:	1218	PROTOTYPE:
1036	CODE:	1219	CODE:
1037	while (nreqs)	1220	while (nreqs)
1038	{	1221	{
1039	poll_wait ();	1222	poll_wait ();
…		…
1079	CODE:	1262	CODE:
1080	RETVAL = nreqs;	1263	RETVAL = nreqs;
1081	OUTPUT:	1264	OUTPUT:
1082	RETVAL	1265	RETVAL
1083		1266
		1267	PROTOTYPES: DISABLE
		1268
		1269	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
		1270
		1271	void
		1272	cancel (aio_req_ornot req)
		1273	PROTOTYPE:
		1274	CODE:
		1275	req_cancel (req);
		1276
		1277	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
		1278
		1279	void
		1280	add (aio_req grp, ...)
		1281	PPCODE:
		1282	{
		1283	int i;
		1284	aio_req req;
		1285
		1286	if (grp->fd == 2)
		1287	croak ("cannot add requests to IO::AIO::GRP after the group finished");
		1288
		1289	for (i = 1; i < items; ++i )
		1290	{
		1291	if (GIMME_V != G_VOID)
		1292	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1293
		1294	req = SvAIO_REQ (ST (i));
		1295
		1296	if (req)
		1297	{
		1298	++grp->length;
		1299	req->grp = grp;
		1300
		1301	req->grp_prev = 0;
		1302	req->grp_next = grp->grp_first;
		1303
		1304	if (grp->grp_first)
		1305	grp->grp_first->grp_prev = req;
		1306
		1307	grp->grp_first = req;
		1308	}
		1309	}
		1310	}
		1311
		1312	void
		1313	result (aio_req grp, ...)
		1314	CODE:
		1315	{
		1316	int i;
		1317	AV *av = newAV ();
		1318
		1319	for (i = 1; i < items; ++i )
		1320	av_push (av, newSVsv (ST (i)));
		1321
		1322	SvREFCNT_dec (grp->data);
		1323	grp->data = (SV *)av;
		1324	}
		1325
		1326	void
		1327	lock (aio_req grp)
		1328	CODE:
		1329	++grp->length;
		1330
		1331	void
		1332	unlock (aio_req grp)
		1333	CODE:
		1334	aio_grp_dec (grp);
		1335
		1336	void
		1337	feeder_limit (aio_req grp, int limit)
		1338	CODE:
		1339	grp->fd2 = limit;
		1340	aio_grp_feed (grp);
		1341
		1342	void
		1343	set_feeder (aio_req grp, SV *callback=&PL_sv_undef)
		1344	CODE:
		1345	{
		1346	SvREFCNT_dec (grp->fh2);
		1347	grp->fh2 = newSVsv (callback);
		1348
		1349	if (grp->fd2 <= 0)
		1350	grp->fd2 = 2;
		1351
		1352	aio_grp_feed (grp);
		1353	}
		1354

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.37 by root, Tue Aug 23 12:37:19 2005 UTC vs. Revision 1.53 by root, Mon Oct 23 00:17:07 2006 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.37 by root, Tue Aug 23 12:37:19 2005 UTC vs.
Revision 1.53 by root, Mon Oct 23 00:17:07 2006 UTC