[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 1.63 by root, Mon Oct 23 23:48:31 2006 UTC

…		…
		1	#if __linux
		2	# define _GNU_SOURCE
		3	#endif
		4
1	#define _REENTRANT 1	5	#define _REENTRANT 1
		6
2	#include <errno.h>	7	#include <errno.h>
3		8
4	#include "EXTERN.h"	9	#include "EXTERN.h"
5	#include "perl.h"	10	#include "perl.h"
6	#include "XSUB.h"	11	#include "XSUB.h"
9		14
10	#include <pthread.h>	15	#include <pthread.h>
11		16
12	#include <stddef.h>	17	#include <stddef.h>
13	#include <errno.h>	18	#include <errno.h>
		19	#include <sys/time.h>
		20	#include <sys/select.h>
14	#include <sys/types.h>	21	#include <sys/types.h>
15	#include <sys/stat.h>	22	#include <sys/stat.h>
16	#include <limits.h>	23	#include <limits.h>
17	#include <unistd.h>	24	#include <unistd.h>
18	#include <fcntl.h>	25	#include <fcntl.h>
…		…
53	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	60	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
54	REQ_FSYNC, REQ_FDATASYNC,	61	REQ_FSYNC, REQ_FDATASYNC,
55	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	62	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
56	REQ_READDIR,	63	REQ_READDIR,
57	REQ_LINK, REQ_SYMLINK,	64	REQ_LINK, REQ_SYMLINK,
		65	REQ_GROUP, REQ_NOP,
		66	REQ_SLEEP,
58	};	67	};
59		68
		69	#define AIO_REQ_KLASS "IO::AIO::REQ"
		70	#define AIO_GRP_KLASS "IO::AIO::GRP"
		71
60	typedef struct aio_cb {	72	typedef struct aio_cb
		73	{
61	struct aio_cb *volatile next;	74	struct aio_cb *volatile next;
62		75
63	int type;	76	SV data, callback;
64		77	SV fh, fh2;
65	/* should receive a cleanup, with unions */	78	void dataptr, data2ptr;
66	int fd, fd2;	79	Stat_t *statdata;
67	off_t offset;	80	off_t offset;
68	size_t length;	81	size_t length;
69	ssize_t result;	82	ssize_t result;
		83
		84	STRLEN dataoffset;
		85	int type;
		86	int fd, fd2;
		87	int errorno;
70	mode_t mode; /* open */	88	mode_t mode; /* open */
71	int errorno;
72	SV data, callback;
73	SV fh, fh2;
74	void dataptr, data2ptr;
75	STRLEN dataoffset;
76		89
77	Stat_t *statdata;	90	unsigned char flags;
		91	unsigned char pri;
		92
		93	SV self; / the perl counterpart of this request, if any */
		94	struct aio_cb grp, grp_prev, grp_next, grp_first;
78	} aio_cb;	95	} aio_cb;
79		96
		97	enum {
		98	FLAG_CANCELLED = 0x01,
		99	};
		100
80	typedef aio_cb *aio_req;	101	typedef aio_cb *aio_req;
		102	typedef aio_cb *aio_req_ornot;
		103
		104	enum {
		105	PRI_MIN = -4,
		106	PRI_MAX = 4,
		107
		108	DEFAULT_PRI = 0,
		109	PRI_BIAS = -PRI_MIN,
		110	};
		111
		112	static int next_pri = DEFAULT_PRI + PRI_BIAS;
81		113
82	static int started, wanted;	114	static int started, wanted;
83	static volatile int nreqs;	115	static volatile int nreqs;
84	static int max_outstanding = 1<<30;	116	static int max_outstanding = 1<<30;
85	static int respipe [2];	117	static int respipe [2];
86		118
		119	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
		120	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
		121	#else
		122	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
		123	#endif
		124
87	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	125	static pthread_mutex_t reslock = AIO_MUTEX_INIT;
88	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	126	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
89	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	127	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
90		128
91	static volatile aio_req reqs, reqe; /* queue start, queue end */	129	static volatile aio_req reqs, reqe; /* queue start, queue end */
92	static volatile aio_req ress, rese; /* queue start, queue end */	130	static volatile aio_req ress, rese; /* queue start, queue end */
93		131
		132	static void req_invoke (aio_req req);
		133	static void req_free (aio_req req);
		134
		135	/* must be called at most once */
		136	static SV req_sv (aio_req req, const char klass)
		137	{
		138	if (!req->self)
		139	{
		140	req->self = (SV *)newHV ();
		141	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		142	}
		143
		144	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
		145	}
		146
		147	static aio_req SvAIO_REQ (SV *sv)
		148	{
		149	MAGIC *mg;
		150
		151	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
		152	croak ("object of class " AIO_REQ_KLASS " expected");
		153
		154	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
		155
		156	return mg ? (aio_req)mg->mg_ptr : 0;
		157	}
		158
		159	static void aio_grp_feed (aio_req grp)
		160	{
		161	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
		162	{
		163	int old_len = grp->length;
		164
		165	if (grp->fh2 && SvOK (grp->fh2))
		166	{
		167	dSP;
		168
		169	ENTER;
		170	SAVETMPS;
		171	PUSHMARK (SP);
		172	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		173	PUTBACK;
		174	call_sv (grp->fh2, G_VOID \| G_EVAL);
		175	SPAGAIN;
		176	FREETMPS;
		177	LEAVE;
		178	}
		179
		180	/* stop if no progress has been made */
		181	if (old_len == grp->length)
		182	{
		183	SvREFCNT_dec (grp->fh2);
		184	grp->fh2 = 0;
		185	break;
		186	}
		187	}
		188	}
		189
		190	static void aio_grp_dec (aio_req grp)
		191	{
		192	--grp->length;
		193
		194	/* call feeder, if applicable */
		195	aio_grp_feed (grp);
		196
		197	/* finish, if done */
		198	if (!grp->length && grp->fd)
		199	{
		200	req_invoke (grp);
		201	req_free (grp);
		202	}
		203	}
		204
		205	static void poll_wait ()
		206	{
		207	fd_set rfd;
		208
		209	while (nreqs)
		210	{
		211	aio_req req;
		212	pthread_mutex_lock (&reslock);
		213	req = ress;
		214	pthread_mutex_unlock (&reslock);
		215
		216	if (req)
		217	return;
		218
		219	FD_ZERO(&rfd);
		220	FD_SET(respipe [0], &rfd);
		221
		222	select (respipe [0] + 1, &rfd, 0, 0, 0);
		223	}
		224	}
		225
		226	static void req_invoke (aio_req req)
		227	{
		228	dSP;
		229	int errorno = errno;
		230
		231	if (req->flags & FLAG_CANCELLED \|\| !SvOK (req->callback))
		232	return;
		233
		234	errno = req->errorno;
		235
		236	ENTER;
		237	SAVETMPS;
		238	PUSHMARK (SP);
		239	EXTEND (SP, 1);
		240
		241	switch (req->type)
		242	{
		243	case REQ_READDIR:
		244	{
		245	SV *rv = &PL_sv_undef;
		246
		247	if (req->result >= 0)
		248	{
		249	char *buf = req->data2ptr;
		250	AV *av = newAV ();
		251
		252	while (req->result)
		253	{
		254	SV *sv = newSVpv (buf, 0);
		255
		256	av_push (av, sv);
		257	buf += SvCUR (sv) + 1;
		258	req->result--;
		259	}
		260
		261	rv = sv_2mortal (newRV_noinc ((SV *)av));
		262	}
		263
		264	PUSHs (rv);
		265	}
		266	break;
		267
		268	case REQ_OPEN:
		269	{
		270	/* convert fd to fh */
		271	SV *fh;
		272
		273	PUSHs (sv_2mortal (newSViv (req->result)));
		274	PUTBACK;
		275	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		276	SPAGAIN;
		277
		278	fh = SvREFCNT_inc (POPs);
		279
		280	PUSHMARK (SP);
		281	XPUSHs (sv_2mortal (fh));
		282	}
		283	break;
		284
		285	case REQ_GROUP:
		286	req->fd = 2; /* mark group as finished */
		287
		288	if (req->data)
		289	{
		290	int i;
		291	AV av = (AV )req->data;
		292
		293	EXTEND (SP, AvFILL (av) + 1);
		294	for (i = 0; i <= AvFILL (av); ++i)
		295	PUSHs (*av_fetch (av, i, 0));
		296	}
		297	break;
		298
		299	case REQ_NOP:
		300	case REQ_SLEEP:
		301	break;
		302
		303	default:
		304	PUSHs (sv_2mortal (newSViv (req->result)));
		305	break;
		306	}
		307
		308
		309	PUTBACK;
		310	call_sv (req->callback, G_VOID \| G_EVAL);
		311	SPAGAIN;
		312
		313	FREETMPS;
		314	LEAVE;
		315
		316	errno = errorno;
		317
		318	if (SvTRUE (ERRSV))
		319	{
		320	req_free (req);
		321	croak (0);
		322	}
		323	}
		324
94	static void free_req (aio_req req)	325	static void req_free (aio_req req)
95	{	326	{
96	if (req->data)	327	if (req->grp)
		328	{
		329	aio_req grp = req->grp;
		330
		331	/* unlink request */
		332	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		333	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		334
		335	if (grp->grp_first == req)
		336	grp->grp_first = req->grp_next;
		337
		338	aio_grp_dec (grp);
		339	}
		340
		341	if (req->self)
		342	{
		343	sv_unmagic (req->self, PERL_MAGIC_ext);
		344	SvREFCNT_dec (req->self);
		345	}
		346
97	SvREFCNT_dec (req->data);	347	SvREFCNT_dec (req->data);
98
99	if (req->fh)
100	SvREFCNT_dec (req->fh);	348	SvREFCNT_dec (req->fh);
101
102	if (req->fh2)
103	SvREFCNT_dec (req->fh2);	349	SvREFCNT_dec (req->fh2);
104
105	if (req->statdata)
106	Safefree (req->statdata);
107
108	if (req->callback)
109	SvREFCNT_dec (req->callback);	350	SvREFCNT_dec (req->callback);
		351	Safefree (req->statdata);
110		352
111	if (req->type == REQ_READDIR && req->result >= 0)	353	if (req->type == REQ_READDIR && req->result >= 0)
112	free (req->data2ptr);	354	free (req->data2ptr);
113		355
114	Safefree (req);	356	Safefree (req);
115	}	357	}
116		358
117	static void	359	static void req_cancel (aio_req req)
118	poll_wait ()
119	{	360	{
120	if (nreqs && !ress)	361	req->flags \|= FLAG_CANCELLED;
121	{
122	fd_set rfd;
123	FD_ZERO(&rfd);
124	FD_SET(respipe [0], &rfd);
125		362
126	select (respipe [0] + 1, &rfd, 0, 0, 0);	363	if (req->type == REQ_GROUP)
127	}	364	{
128	}	365	aio_req sub;
129		366
130	static int	367	for (sub = req->grp_first; sub; sub = sub->grp_next)
131	poll_cb ()	368	req_cancel (sub);
		369	}
		370	}
		371
		372	static int poll_cb ()
132	{	373	{
133	dSP;	374	dSP;
134	int count = 0;	375	int count = 0;
135	int do_croak = 0;	376	int do_croak = 0;
136	aio_req req;	377	aio_req req;
…		…
158	pthread_mutex_unlock (&reslock);	399	pthread_mutex_unlock (&reslock);
159		400
160	if (!req)	401	if (!req)
161	break;	402	break;
162		403
163	nreqs--;	404	--nreqs;
164		405
165	if (req->type == REQ_QUIT)	406	if (req->type == REQ_QUIT)
166	started--;	407	started--;
		408	else if (req->type == REQ_GROUP && req->length)
		409	{
		410	req->fd = 1; /* mark request as delayed */
		411	continue;
		412	}
167	else	413	else
168	{	414	{
169	int errorno = errno;
170	errno = req->errorno;
171
172	if (req->type == REQ_READ)	415	if (req->type == REQ_READ)
173	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	416	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
174		417
175	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	418	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
176	SvREADONLY_off (req->data);	419	SvREADONLY_off (req->data);
…		…
180	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	423	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
181	PL_laststatval = req->result;	424	PL_laststatval = req->result;
182	PL_statcache = *(req->statdata);	425	PL_statcache = *(req->statdata);
183	}	426	}
184		427
185	ENTER;	428	req_invoke (req);
186	PUSHMARK (SP);
187		429
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++;	430	count++;
248	}	431	}
249		432
250	free_req (req);	433	req_free (req);
251	}	434	}
252		435
253	return count;	436	return count;
254	}	437	}
255		438
256	static void aio_proc(void arg);	439	static void aio_proc(void arg);
257		440
258	static void
259	start_thread (void)	441	static void start_thread (void)
260	{	442	{
261	sigset_t fullsigset, oldsigset;	443	sigset_t fullsigset, oldsigset;
262	pthread_t tid;	444	pthread_t tid;
263	pthread_attr_t attr;	445	pthread_attr_t attr;
264		446
…		…
273	started++;	455	started++;
274		456
275	sigprocmask (SIG_SETMASK, &oldsigset, 0);	457	sigprocmask (SIG_SETMASK, &oldsigset, 0);
276	}	458	}
277		459
278	static void	460	static void req_send (aio_req req)
279	send_req (aio_req req)
280	{	461	{
281	while (started < wanted && nreqs >= started)	462	while (started < wanted && nreqs >= started)
282	start_thread ();	463	start_thread ();
283		464
284	nreqs++;	465	++nreqs;
285		466
286	pthread_mutex_lock (&reqlock);	467	pthread_mutex_lock (&reqlock);
287		468
288	req->next = 0;	469	req->next = 0;
289		470
…		…
308		489
309	poll_wait ();	490	poll_wait ();
310	}	491	}
311	}	492	}
312		493
313	static void	494	static void end_thread (void)
314	end_thread (void)
315	{	495	{
316	aio_req req;	496	aio_req req;
317	Newz (0, req, 1, aio_cb);	497	Newz (0, req, 1, aio_cb);
318	req->type = REQ_QUIT;	498	req->type = REQ_QUIT;
319		499
320	send_req (req);	500	req_send (req);
321	}	501	}
322		502
323	static void min_parallel (int nthreads)	503	static void min_parallel (int nthreads)
324	{	504	{
325	if (wanted < nthreads)	505	if (wanted < nthreads)
…		…
370	* normal read/write by using a mutex. slows down execution a lot,	550	* normal read/write by using a mutex. slows down execution a lot,
371	* but that's your problem, not mine.	551	* but that's your problem, not mine.
372	*/	552	*/
373	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	553	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
374		554
375	static ssize_t	555	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	{	556	{
378	ssize_t res;	557	ssize_t res;
379	off_t ooffset;	558	off_t ooffset;
380		559
381	pthread_mutex_lock (&preadwritelock);	560	pthread_mutex_lock (&preadwritelock);
…		…
386	pthread_mutex_unlock (&preadwritelock);	565	pthread_mutex_unlock (&preadwritelock);
387		566
388	return res;	567	return res;
389	}	568	}
390		569
391	static ssize_t
392	pwrite (int fd, void *buf, size_t count, off_t offset)	570	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
393	{	571	{
394	ssize_t res;	572	ssize_t res;
395	off_t ooffset;	573	off_t ooffset;
396		574
397	pthread_mutex_lock (&preadwritelock);	575	pthread_mutex_lock (&preadwritelock);
…		…
410	#endif	588	#endif
411		589
412	#if !HAVE_READAHEAD	590	#if !HAVE_READAHEAD
413	# define readahead aio_readahead	591	# define readahead aio_readahead
414		592
415	static ssize_t
416	readahead (int fd, off_t offset, size_t count)	593	static ssize_t readahead (int fd, off_t offset, size_t count)
417	{	594	{
418	char readahead_buf[4096];	595	char readahead_buf[4096];
419		596
420	while (count > 0)	597	while (count > 0)
421	{	598	{
…		…
433	#if !HAVE_READDIR_R	610	#if !HAVE_READDIR_R
434	# define readdir_r aio_readdir_r	611	# define readdir_r aio_readdir_r
435		612
436	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	613	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
437		614
438	static int
439	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	615	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
440	{	616	{
441	struct dirent *e;	617	struct dirent *e;
442	int errorno;	618	int errorno;
443		619
444	pthread_mutex_lock (&readdirlock);	620	pthread_mutex_lock (&readdirlock);
…		…
460	return e ? 0 : -1;	636	return e ? 0 : -1;
461	}	637	}
462	#endif	638	#endif
463		639
464	/* sendfile always needs emulation */	640	/* sendfile always needs emulation */
465	static ssize_t
466	sendfile_ (int ofd, int ifd, off_t offset, size_t count)	641	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
467	{	642	{
468	ssize_t res;	643	ssize_t res;
469		644
470	if (!count)	645	if (!count)
471	return 0;	646	return 0;
…		…
553		728
554	return res;	729	return res;
555	}	730	}
556		731
557	/* read a full directory */	732	/* read a full directory */
558	static int
559	scandir_ (const char path, void *namesp)	733	static int scandir_ (const char path, void *namesp)
560	{	734	{
561	DIR *dirp = opendir (path);	735	DIR *dirp = opendir (path);
562	union	736	union
563	{	737	{
564	struct dirent d;	738	struct dirent d;
…		…
618	return res;	792	return res;
619	}	793	}
620		794
621	/*****************************************************************************/	795	/*****************************************************************************/
622		796
623	static void *
624	aio_proc (void *thr_arg)	797	static void aio_proc (void thr_arg)
625	{	798	{
626	aio_req req;	799	aio_req req;
627	int type;	800	int type;
628		801
629	do	802	do
…		…
647	}	820	}
648		821
649	pthread_mutex_unlock (&reqlock);	822	pthread_mutex_unlock (&reqlock);
650		823
651	errno = 0; /* strictly unnecessary */	824	errno = 0; /* strictly unnecessary */
		825	type = req->type; /* remember type for QUIT check */
652		826
653	type = req->type;	827	if (!(req->flags & FLAG_CANCELLED))
654
655	switch (type)	828	switch (type)
656	{	829	{
657	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	830	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
658	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	831	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
659		832
660	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	833	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
661	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;	834	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
662		835
663	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	836	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
664	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	837	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
665	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	838	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
666		839
667	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	840	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
668	case REQ_CLOSE: req->result = close (req->fd); break;	841	case REQ_CLOSE: req->result = close (req->fd); break;
669	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	842	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
670	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	843	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
671	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	844	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
672	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	845	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
673	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	846	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
674		847
675	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	848	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
676	case REQ_FSYNC: req->result = fsync (req->fd); break;	849	case REQ_FSYNC: req->result = fsync (req->fd); break;
677	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	850	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
678		851
		852	case REQ_SLEEP:
		853	{
		854	struct timeval tv;
		855
		856	tv.tv_sec = req->fd;
		857	tv.tv_usec = req->fd2;
		858
		859	req->result = select (0, 0, 0, 0, &tv);
		860	}
		861
		862	case REQ_GROUP:
		863	case REQ_NOP:
679	case REQ_QUIT:	864	case REQ_QUIT:
680	break;	865	break;
681		866
682	default:	867	default:
683	req->result = ENOSYS;	868	req->result = ENOSYS;
684	break;	869	break;
685	}	870	}
686		871
687	req->errorno = errno;	872	req->errorno = errno;
688		873
689	pthread_mutex_lock (&reslock);	874	pthread_mutex_lock (&reslock);
690		875
…		…
744		929
745	while (reqs)	930	while (reqs)
746	{	931	{
747	prv = reqs;	932	prv = reqs;
748	reqs = prv->next;	933	reqs = prv->next;
749	free_req (prv);	934	req_free (prv);
750	}	935	}
751		936
752	reqs = reqe = 0;	937	reqs = reqe = 0;
753		938
754	while (ress)	939	while (ress)
755	{	940	{
756	prv = ress;	941	prv = ress;
757	ress = prv->next;	942	ress = prv->next;
758	free_req (prv);	943	req_free (prv);
759	}	944	}
760		945
761	ress = rese = 0;	946	ress = rese = 0;
762		947
763	close (respipe [0]);	948	close (respipe [0]);
…		…
767	atfork_parent ();	952	atfork_parent ();
768	}	953	}
769		954
770	#define dREQ \	955	#define dREQ \
771	aio_req req; \	956	aio_req req; \
		957	int req_pri = next_pri; \
		958	next_pri = DEFAULT_PRI + PRI_BIAS; \
772	\	959	\
773	if (SvOK (callback) && !SvROK (callback)) \	960	if (SvOK (callback) && !SvROK (callback)) \
774	croak ("clalback must be undef or of reference type"); \	961	croak ("callback must be undef or of reference type"); \
775	\	962	\
776	Newz (0, req, 1, aio_cb); \	963	Newz (0, req, 1, aio_cb); \
777	if (!req) \	964	if (!req) \
778	croak ("out of memory during aio_req allocation"); \	965	croak ("out of memory during aio_req allocation"); \
779	\	966	\
780	req->callback = newSVsv (callback);	967	req->callback = newSVsv (callback); \
		968	req->pri = req_pri
		969
		970	#define REQ_SEND \
		971	req_send (req); \
		972	\
		973	if (GIMME_V != G_VOID) \
		974	XPUSHs (req_sv (req, AIO_REQ_KLASS));
781		975
782	MODULE = IO::AIO PACKAGE = IO::AIO	976	MODULE = IO::AIO PACKAGE = IO::AIO
783		977
784	PROTOTYPES: ENABLE	978	PROTOTYPES: ENABLE
785		979
…		…
817	SV * pathname	1011	SV * pathname
818	int flags	1012	int flags
819	int mode	1013	int mode
820	SV * callback	1014	SV * callback
821	PROTOTYPE: $$$;$	1015	PROTOTYPE: $$$;$
822	CODE:	1016	PPCODE:
823	{	1017	{
824	dREQ;	1018	dREQ;
825		1019
826	req->type = REQ_OPEN;	1020	req->type = REQ_OPEN;
827	req->data = newSVsv (pathname);	1021	req->data = newSVsv (pathname);
828	req->dataptr = SvPVbyte_nolen (req->data);	1022	req->dataptr = SvPVbyte_nolen (req->data);
829	req->fd = flags;	1023	req->fd = flags;
830	req->mode = mode;	1024	req->mode = mode;
831		1025
832	send_req (req);	1026	REQ_SEND;
833	}	1027	}
834		1028
835	void	1029	void
836	aio_close (fh,callback=&PL_sv_undef)	1030	aio_close (fh,callback=&PL_sv_undef)
837	SV * fh	1031	SV * fh
…		…
839	PROTOTYPE: $;$	1033	PROTOTYPE: $;$
840	ALIAS:	1034	ALIAS:
841	aio_close = REQ_CLOSE	1035	aio_close = REQ_CLOSE
842	aio_fsync = REQ_FSYNC	1036	aio_fsync = REQ_FSYNC
843	aio_fdatasync = REQ_FDATASYNC	1037	aio_fdatasync = REQ_FDATASYNC
844	CODE:	1038	PPCODE:
845	{	1039	{
846	dREQ;	1040	dREQ;
847		1041
848	req->type = ix;	1042	req->type = ix;
849	req->fh = newSVsv (fh);	1043	req->fh = newSVsv (fh);
850	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1044	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
851		1045
852	send_req (req);	1046	REQ_SEND (req);
853	}	1047	}
854		1048
855	void	1049	void
856	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1050	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
857	SV * fh	1051	SV * fh
…		…
862	SV * callback	1056	SV * callback
863	ALIAS:	1057	ALIAS:
864	aio_read = REQ_READ	1058	aio_read = REQ_READ
865	aio_write = REQ_WRITE	1059	aio_write = REQ_WRITE
866	PROTOTYPE: $$$$$;$	1060	PROTOTYPE: $$$$$;$
867	CODE:	1061	PPCODE:
868	{	1062	{
869	aio_req req;	1063	aio_req req;
870	STRLEN svlen;	1064	STRLEN svlen;
871	char *svptr = SvPVbyte (data, svlen);	1065	char *svptr = SvPVbyte (data, svlen);
872		1066
…		…
910	{	1104	{
911	SvREADONLY_on (data);	1105	SvREADONLY_on (data);
912	req->data2ptr = (void *)data;	1106	req->data2ptr = (void *)data;
913	}	1107	}
914		1108
915	send_req (req);	1109	REQ_SEND;
916	}	1110	}
917	}	1111	}
918		1112
919	void	1113	void
920	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1114	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
…		…
922	SV * in_fh	1116	SV * in_fh
923	UV in_offset	1117	UV in_offset
924	UV length	1118	UV length
925	SV * callback	1119	SV * callback
926	PROTOTYPE: $$$$;$	1120	PROTOTYPE: $$$$;$
927	CODE:	1121	PPCODE:
928	{	1122	{
929	dREQ;	1123	dREQ;
930		1124
931	req->type = REQ_SENDFILE;	1125	req->type = REQ_SENDFILE;
932	req->fh = newSVsv (out_fh);	1126	req->fh = newSVsv (out_fh);
…		…
934	req->fh2 = newSVsv (in_fh);	1128	req->fh2 = newSVsv (in_fh);
935	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1129	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
936	req->offset = in_offset;	1130	req->offset = in_offset;
937	req->length = length;	1131	req->length = length;
938		1132
939	send_req (req);	1133	REQ_SEND;
940	}	1134	}
941		1135
942	void	1136	void
943	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1137	aio_readahead (fh,offset,length,callback=&PL_sv_undef)
944	SV * fh	1138	SV * fh
945	UV offset	1139	UV offset
946	IV length	1140	IV length
947	SV * callback	1141	SV * callback
948	PROTOTYPE: $$$;$	1142	PROTOTYPE: $$$;$
949	CODE:	1143	PPCODE:
950	{	1144	{
951	dREQ;	1145	dREQ;
952		1146
953	req->type = REQ_READAHEAD;	1147	req->type = REQ_READAHEAD;
954	req->fh = newSVsv (fh);	1148	req->fh = newSVsv (fh);
955	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1149	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
956	req->offset = offset;	1150	req->offset = offset;
957	req->length = length;	1151	req->length = length;
958		1152
959	send_req (req);	1153	REQ_SEND;
960	}	1154	}
961		1155
962	void	1156	void
963	aio_stat (fh_or_path,callback=&PL_sv_undef)	1157	aio_stat (fh_or_path,callback=&PL_sv_undef)
964	SV * fh_or_path	1158	SV * fh_or_path
965	SV * callback	1159	SV * callback
966	ALIAS:	1160	ALIAS:
967	aio_stat = REQ_STAT	1161	aio_stat = REQ_STAT
968	aio_lstat = REQ_LSTAT	1162	aio_lstat = REQ_LSTAT
969	CODE:	1163	PPCODE:
970	{	1164	{
971	dREQ;	1165	dREQ;
972		1166
973	New (0, req->statdata, 1, Stat_t);	1167	New (0, req->statdata, 1, Stat_t);
974	if (!req->statdata)	1168	if (!req->statdata)
975	{	1169	{
976	free_req (req);	1170	req_free (req);
977	croak ("out of memory during aio_req->statdata allocation");	1171	croak ("out of memory during aio_req->statdata allocation");
978	}	1172	}
979		1173
980	if (SvPOK (fh_or_path))	1174	if (SvPOK (fh_or_path))
981	{	1175	{
…		…
988	req->type = REQ_FSTAT;	1182	req->type = REQ_FSTAT;
989	req->fh = newSVsv (fh_or_path);	1183	req->fh = newSVsv (fh_or_path);
990	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1184	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
991	}	1185	}
992		1186
993	send_req (req);	1187	REQ_SEND;
994	}	1188	}
995		1189
996	void	1190	void
997	aio_unlink (pathname,callback=&PL_sv_undef)	1191	aio_unlink (pathname,callback=&PL_sv_undef)
998	SV * pathname	1192	SV * pathname
999	SV * callback	1193	SV * callback
1000	ALIAS:	1194	ALIAS:
1001	aio_unlink = REQ_UNLINK	1195	aio_unlink = REQ_UNLINK
1002	aio_rmdir = REQ_RMDIR	1196	aio_rmdir = REQ_RMDIR
1003	aio_readdir = REQ_READDIR	1197	aio_readdir = REQ_READDIR
1004	CODE:	1198	PPCODE:
1005	{	1199	{
1006	dREQ;	1200	dREQ;
1007		1201
1008	req->type = ix;	1202	req->type = ix;
1009	req->data = newSVsv (pathname);	1203	req->data = newSVsv (pathname);
1010	req->dataptr = SvPVbyte_nolen (req->data);	1204	req->dataptr = SvPVbyte_nolen (req->data);
1011		1205
1012	send_req (req);	1206	REQ_SEND;
1013	}	1207	}
1014		1208
1015	void	1209	void
1016	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1210	aio_link (oldpath,newpath,callback=&PL_sv_undef)
1017	SV * oldpath	1211	SV * oldpath
…		…
1019	SV * callback	1213	SV * callback
1020	ALIAS:	1214	ALIAS:
1021	aio_link = REQ_LINK	1215	aio_link = REQ_LINK
1022	aio_symlink = REQ_SYMLINK	1216	aio_symlink = REQ_SYMLINK
1023	aio_rename = REQ_RENAME	1217	aio_rename = REQ_RENAME
1024	CODE:	1218	PPCODE:
1025	{	1219	{
1026	dREQ;	1220	dREQ;
1027		1221
1028	req->type = ix;	1222	req->type = ix;
1029	req->fh = newSVsv (oldpath);	1223	req->fh = newSVsv (oldpath);
1030	req->data2ptr = SvPVbyte_nolen (req->fh);	1224	req->data2ptr = SvPVbyte_nolen (req->fh);
1031	req->data = newSVsv (newpath);	1225	req->data = newSVsv (newpath);
1032	req->dataptr = SvPVbyte_nolen (req->data);	1226	req->dataptr = SvPVbyte_nolen (req->data);
1033		1227
1034	send_req (req);	1228	REQ_SEND;
		1229	}
		1230
		1231	void
		1232	aio_sleep (delay,callback=&PL_sv_undef)
		1233	double delay
		1234	SV * callback
		1235	PPCODE:
		1236	{
		1237	dREQ;
		1238
		1239	req->type = REQ_SLEEP;
		1240	req->fd = delay < 0. ? 0 : delay;
		1241	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
		1242
		1243	REQ_SEND;
		1244	}
		1245
		1246	void
		1247	aio_group (callback=&PL_sv_undef)
		1248	SV * callback
		1249	PROTOTYPE: ;$
		1250	PPCODE:
		1251	{
		1252	dREQ;
		1253
		1254	req->type = REQ_GROUP;
		1255	req_send (req);
		1256
		1257	XPUSHs (req_sv (req, AIO_GRP_KLASS));
		1258	}
		1259
		1260	void
		1261	aio_nop (callback=&PL_sv_undef)
		1262	SV * callback
		1263	PPCODE:
		1264	{
		1265	dREQ;
		1266
		1267	req->type = REQ_NOP;
		1268
		1269	REQ_SEND;
1035	}	1270	}
1036		1271
1037	#if 0	1272	#if 0
1038		1273
1039	# undocumented, because it does not cancel active requests
1040	void	1274	void
1041	cancel_most_requests ()	1275	aio_pri (int pri = DEFAULT_PRI)
1042	PROTOTYPE:	1276	CODE:
1043	CODE:	1277	if (pri < PRI_MIN) pri = PRI_MIN;
1044	{	1278	if (pri > PRI_MAX) pri = PRI_MAX;
1045	aio_req *req;	1279	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		1280
1058	#endif	1281	#endif
1059		1282
1060	void	1283	void
1061	flush ()	1284	flush ()
…		…
1106	CODE:	1329	CODE:
1107	RETVAL = nreqs;	1330	RETVAL = nreqs;
1108	OUTPUT:	1331	OUTPUT:
1109	RETVAL	1332	RETVAL
1110		1333
		1334	PROTOTYPES: DISABLE
		1335
		1336	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
		1337
		1338	void
		1339	cancel (aio_req_ornot req)
		1340	PROTOTYPE:
		1341	CODE:
		1342	req_cancel (req);
		1343
		1344	void
		1345	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1346	CODE:
		1347	SvREFCNT_dec (req->callback);
		1348	req->callback = newSVsv (callback);
		1349
		1350	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
		1351
		1352	void
		1353	add (aio_req grp, ...)
		1354	PPCODE:
		1355	{
		1356	int i;
		1357	aio_req req;
		1358
		1359	if (grp->fd == 2)
		1360	croak ("cannot add requests to IO::AIO::GRP after the group finished");
		1361
		1362	for (i = 1; i < items; ++i )
		1363	{
		1364	if (GIMME_V != G_VOID)
		1365	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1366
		1367	req = SvAIO_REQ (ST (i));
		1368
		1369	if (req)
		1370	{
		1371	++grp->length;
		1372	req->grp = grp;
		1373
		1374	req->grp_prev = 0;
		1375	req->grp_next = grp->grp_first;
		1376
		1377	if (grp->grp_first)
		1378	grp->grp_first->grp_prev = req;
		1379
		1380	grp->grp_first = req;
		1381	}
		1382	}
		1383	}
		1384
		1385	void
		1386	result (aio_req grp, ...)
		1387	CODE:
		1388	{
		1389	int i;
		1390	AV *av = newAV ();
		1391
		1392	for (i = 1; i < items; ++i )
		1393	av_push (av, newSVsv (ST (i)));
		1394
		1395	SvREFCNT_dec (grp->data);
		1396	grp->data = (SV *)av;
		1397	}
		1398
		1399	void
		1400	feed_limit (aio_req grp, int limit)
		1401	CODE:
		1402	grp->fd2 = limit;
		1403	aio_grp_feed (grp);
		1404
		1405	void
		1406	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1407	CODE:
		1408	{
		1409	SvREFCNT_dec (grp->fh2);
		1410	grp->fh2 = newSVsv (callback);
		1411
		1412	if (grp->fd2 <= 0)
		1413	grp->fd2 = 2;
		1414
		1415	aio_grp_feed (grp);
		1416	}
		1417

Diff Legend

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

Comparing IO-AIO/AIO.xs (file contents): Revision 1.42 by root, Fri Jul 21 07:35:31 2006 UTC vs. Revision 1.63 by root, Mon Oct 23 23:48:31 2006 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.42 by root, Fri Jul 21 07:35:31 2006 UTC vs.
Revision 1.63 by root, Mon Oct 23 23:48:31 2006 UTC