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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.39 by root, Mon Feb 6 23:54:12 2006 UTC vs.
Revision 1.62 by root, Mon Oct 23 22:45:18 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>
…		…
49	REQ_OPEN, REQ_CLOSE,	52	REQ_OPEN, REQ_CLOSE,
50	REQ_READ, REQ_WRITE, REQ_READAHEAD,	53	REQ_READ, REQ_WRITE, REQ_READAHEAD,
51	REQ_SENDFILE,	54	REQ_SENDFILE,
52	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	55	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
53	REQ_FSYNC, REQ_FDATASYNC,	56	REQ_FSYNC, REQ_FDATASYNC,
54	REQ_UNLINK, REQ_RMDIR,	57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
55	REQ_READDIR,	58	REQ_READDIR,
56	REQ_SYMLINK,	59	REQ_LINK, REQ_SYMLINK,
		60	REQ_GROUP, REQ_NOP,
		61	REQ_SLEEP,
57	};	62	};
58		63
		64	#define AIO_REQ_KLASS "IO::AIO::REQ"
		65	#define AIO_GRP_KLASS "IO::AIO::GRP"
		66
59	typedef struct aio_cb {	67	typedef struct aio_cb
		68	{
60	struct aio_cb *volatile next;	69	struct aio_cb *volatile next;
61		70
62	int type;	71	SV data, callback;
63		72	SV fh, fh2;
64	/* should receive a cleanup, with unions */	73	void dataptr, data2ptr;
65	int fd, fd2;	74	Stat_t *statdata;
66	off_t offset;	75	off_t offset;
67	size_t length;	76	size_t length;
68	ssize_t result;	77	ssize_t result;
		78
		79	STRLEN dataoffset;
		80	int type;
		81	int fd, fd2;
		82	int errorno;
69	mode_t mode; /* open */	83	mode_t mode; /* open */
70	int errorno;
71	SV data, callback;
72	SV fh, fh2;
73	void dataptr, data2ptr;
74	STRLEN dataoffset;
75		84
76	Stat_t *statdata;	85	unsigned char flags;
		86	unsigned char pri;
		87
		88	SV self; / the perl counterpart of this request, if any */
		89	struct aio_cb grp, grp_prev, grp_next, grp_first;
77	} aio_cb;	90	} aio_cb;
78		91
		92	enum {
		93	FLAG_CANCELLED = 0x01,
		94	};
		95
79	typedef aio_cb *aio_req;	96	typedef aio_cb *aio_req;
		97	typedef aio_cb *aio_req_ornot;
		98
		99	enum {
		100	PRI_MIN = -4,
		101	PRI_MAX = 4,
		102
		103	DEFAULT_PRI = 0,
		104	PRI_BIAS = -PRI_MIN,
		105	};
		106
		107	static int next_pri = DEFAULT_PRI + PRI_BIAS;
80		108
81	static int started, wanted;	109	static int started, wanted;
82	static volatile int nreqs;	110	static volatile int nreqs;
83	static int max_outstanding = 1<<30;	111	static int max_outstanding = 1<<30;
84	static int respipe [2];	112	static int respipe [2];
…		…
88	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	116	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
89		117
90	static volatile aio_req reqs, reqe; /* queue start, queue end */	118	static volatile aio_req reqs, reqe; /* queue start, queue end */
91	static volatile aio_req ress, rese; /* queue start, queue end */	119	static volatile aio_req ress, rese; /* queue start, queue end */
92		120
		121	static void req_invoke (aio_req req);
		122	static void req_free (aio_req req);
		123
		124	/* must be called at most once */
		125	static SV req_sv (aio_req req, const char klass)
		126	{
		127	if (!req->self)
		128	{
		129	req->self = (SV *)newHV ();
		130	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		131	}
		132
		133	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
		134	}
		135
		136	static aio_req SvAIO_REQ (SV *sv)
		137	{
		138	MAGIC *mg;
		139
		140	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
		141	croak ("object of class " AIO_REQ_KLASS " expected");
		142
		143	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
		144
		145	return mg ? (aio_req)mg->mg_ptr : 0;
		146	}
		147
		148	static void aio_grp_feed (aio_req grp)
		149	{
		150	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
		151	{
		152	int old_len = grp->length;
		153
		154	if (grp->fh2 && SvOK (grp->fh2))
		155	{
		156	dSP;
		157
		158	ENTER;
		159	SAVETMPS;
		160	PUSHMARK (SP);
		161	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		162	PUTBACK;
		163	call_sv (grp->fh2, G_VOID \| G_EVAL);
		164	SPAGAIN;
		165	FREETMPS;
		166	LEAVE;
		167	}
		168
		169	/* stop if no progress has been made */
		170	if (old_len == grp->length)
		171	{
		172	SvREFCNT_dec (grp->fh2);
		173	grp->fh2 = 0;
		174	break;
		175	}
		176	}
		177	}
		178
		179	static void aio_grp_dec (aio_req grp)
		180	{
		181	--grp->length;
		182
		183	/* call feeder, if applicable */
		184	aio_grp_feed (grp);
		185
		186	/* finish, if done */
		187	if (!grp->length && grp->fd)
		188	{
		189	req_invoke (grp);
		190	req_free (grp);
		191	}
		192	}
		193
		194	static void poll_wait ()
		195	{
		196	fd_set rfd;
		197
		198	while (nreqs)
		199	{
		200	aio_req req;
		201	pthread_mutex_lock (&reslock);
		202	req = ress;
		203	pthread_mutex_unlock (&reslock);
		204
		205	if (req)
		206	return;
		207
		208	FD_ZERO(&rfd);
		209	FD_SET(respipe [0], &rfd);
		210
		211	select (respipe [0] + 1, &rfd, 0, 0, 0);
		212	}
		213	}
		214
		215	static void req_invoke (aio_req req)
		216	{
		217	dSP;
		218	int errorno = errno;
		219
		220	if (req->flags & FLAG_CANCELLED \|\| !SvOK (req->callback))
		221	return;
		222
		223	errno = req->errorno;
		224
		225	ENTER;
		226	SAVETMPS;
		227	PUSHMARK (SP);
		228	EXTEND (SP, 1);
		229
		230	switch (req->type)
		231	{
		232	case REQ_READDIR:
		233	{
		234	SV *rv = &PL_sv_undef;
		235
		236	if (req->result >= 0)
		237	{
		238	char *buf = req->data2ptr;
		239	AV *av = newAV ();
		240
		241	while (req->result)
		242	{
		243	SV *sv = newSVpv (buf, 0);
		244
		245	av_push (av, sv);
		246	buf += SvCUR (sv) + 1;
		247	req->result--;
		248	}
		249
		250	rv = sv_2mortal (newRV_noinc ((SV *)av));
		251	}
		252
		253	PUSHs (rv);
		254	}
		255	break;
		256
		257	case REQ_OPEN:
		258	{
		259	/* convert fd to fh */
		260	SV *fh;
		261
		262	PUSHs (sv_2mortal (newSViv (req->result)));
		263	PUTBACK;
		264	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		265	SPAGAIN;
		266
		267	fh = SvREFCNT_inc (POPs);
		268
		269	PUSHMARK (SP);
		270	XPUSHs (sv_2mortal (fh));
		271	}
		272	break;
		273
		274	case REQ_GROUP:
		275	req->fd = 2; /* mark group as finished */
		276
		277	if (req->data)
		278	{
		279	int i;
		280	AV av = (AV )req->data;
		281
		282	EXTEND (SP, AvFILL (av) + 1);
		283	for (i = 0; i <= AvFILL (av); ++i)
		284	PUSHs (*av_fetch (av, i, 0));
		285	}
		286	break;
		287
		288	case REQ_NOP:
		289	case REQ_SLEEP:
		290	break;
		291
		292	default:
		293	PUSHs (sv_2mortal (newSViv (req->result)));
		294	break;
		295	}
		296
		297
		298	PUTBACK;
		299	call_sv (req->callback, G_VOID \| G_EVAL);
		300	SPAGAIN;
		301
		302	FREETMPS;
		303	LEAVE;
		304
		305	errno = errorno;
		306
		307	if (SvTRUE (ERRSV))
		308	{
		309	req_free (req);
		310	croak (0);
		311	}
		312	}
		313
93	static void free_req (aio_req req)	314	static void req_free (aio_req req)
94	{	315	{
95	if (req->data)	316	if (req->grp)
		317	{
		318	aio_req grp = req->grp;
		319
		320	/* unlink request */
		321	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		322	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		323
		324	if (grp->grp_first == req)
		325	grp->grp_first = req->grp_next;
		326
		327	aio_grp_dec (grp);
		328	}
		329
		330	if (req->self)
		331	{
		332	sv_unmagic (req->self, PERL_MAGIC_ext);
		333	SvREFCNT_dec (req->self);
		334	}
		335
96	SvREFCNT_dec (req->data);	336	SvREFCNT_dec (req->data);
97
98	if (req->fh)
99	SvREFCNT_dec (req->fh);	337	SvREFCNT_dec (req->fh);
100
101	if (req->fh2)
102	SvREFCNT_dec (req->fh2);	338	SvREFCNT_dec (req->fh2);
103
104	if (req->statdata)
105	Safefree (req->statdata);
106
107	if (req->callback)
108	SvREFCNT_dec (req->callback);	339	SvREFCNT_dec (req->callback);
		340	Safefree (req->statdata);
109		341
110	if (req->type == REQ_READDIR && req->result >= 0)	342	if (req->type == REQ_READDIR && req->result >= 0)
111	free (req->data2ptr);	343	free (req->data2ptr);
112		344
113	Safefree (req);	345	Safefree (req);
114	}	346	}
115		347
116	static void	348	static void req_cancel (aio_req req)
117	poll_wait ()
118	{	349	{
119	if (nreqs && !ress)	350	req->flags \|= FLAG_CANCELLED;
120	{
121	fd_set rfd;
122	FD_ZERO(&rfd);
123	FD_SET(respipe [0], &rfd);
124		351
125	select (respipe [0] + 1, &rfd, 0, 0, 0);	352	if (req->type == REQ_GROUP)
126	}	353	{
127	}	354	aio_req sub;
128		355
129	static int	356	for (sub = req->grp_first; sub; sub = sub->grp_next)
130	poll_cb ()	357	req_cancel (sub);
		358	}
		359	}
		360
		361	static int poll_cb ()
131	{	362	{
132	dSP;	363	dSP;
133	int count = 0;	364	int count = 0;
134	int do_croak = 0;	365	int do_croak = 0;
135	aio_req req;	366	aio_req req;
…		…
157	pthread_mutex_unlock (&reslock);	388	pthread_mutex_unlock (&reslock);
158		389
159	if (!req)	390	if (!req)
160	break;	391	break;
161		392
162	nreqs--;	393	--nreqs;
163		394
164	if (req->type == REQ_QUIT)	395	if (req->type == REQ_QUIT)
165	started--;	396	started--;
		397	else if (req->type == REQ_GROUP && req->length)
		398	{
		399	req->fd = 1; /* mark request as delayed */
		400	continue;
		401	}
166	else	402	else
167	{	403	{
168	int errorno = errno;
169	errno = req->errorno;
170
171	if (req->type == REQ_READ)	404	if (req->type == REQ_READ)
172	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	405	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
173		406
174	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	407	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
175	SvREADONLY_off (req->data);	408	SvREADONLY_off (req->data);
…		…
179	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	412	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
180	PL_laststatval = req->result;	413	PL_laststatval = req->result;
181	PL_statcache = *(req->statdata);	414	PL_statcache = *(req->statdata);
182	}	415	}
183		416
184	ENTER;	417	req_invoke (req);
185	PUSHMARK (SP);
186		418
187	if (req->type == REQ_READDIR)
188	{
189	SV *rv = &PL_sv_undef;
190
191	if (req->result >= 0)
192	{
193	char *buf = req->data2ptr;
194	AV *av = newAV ();
195
196	while (req->result)
197	{
198	SV *sv = newSVpv (buf, 0);
199
200	av_push (av, sv);
201	buf += SvCUR (sv) + 1;
202	req->result--;
203	}
204
205	rv = sv_2mortal (newRV_noinc ((SV *)av));
206	}
207
208	XPUSHs (rv);
209	}
210	else
211	{
212	XPUSHs (sv_2mortal (newSViv (req->result)));
213
214	if (req->type == REQ_OPEN)
215	{
216	/* convert fd to fh */
217	SV *fh;
218
219	PUTBACK;
220	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
221	SPAGAIN;
222
223	fh = SvREFCNT_inc (POPs);
224
225	PUSHMARK (SP);
226	XPUSHs (sv_2mortal (fh));
227	}
228	}
229
230	if (SvOK (req->callback))
231	{
232	PUTBACK;
233	call_sv (req->callback, G_VOID \| G_EVAL);
234	SPAGAIN;
235
236	if (SvTRUE (ERRSV))
237	{
238	free_req (req);
239	croak (0);
240	}
241	}
242
243	LEAVE;
244
245	errno = errorno;
246	count++;	419	count++;
247	}	420	}
248		421
249	free_req (req);	422	req_free (req);
250	}	423	}
251		424
252	return count;	425	return count;
253	}	426	}
254		427
255	static void aio_proc(void arg);	428	static void aio_proc(void arg);
256		429
257	static void
258	start_thread (void)	430	static void start_thread (void)
259	{	431	{
260	sigset_t fullsigset, oldsigset;	432	sigset_t fullsigset, oldsigset;
261	pthread_t tid;	433	pthread_t tid;
262	pthread_attr_t attr;	434	pthread_attr_t attr;
263		435
…		…
272	started++;	444	started++;
273		445
274	sigprocmask (SIG_SETMASK, &oldsigset, 0);	446	sigprocmask (SIG_SETMASK, &oldsigset, 0);
275	}	447	}
276		448
277	static void	449	static void req_send (aio_req req)
278	send_req (aio_req req)
279	{	450	{
280	while (started < wanted && nreqs >= started)	451	while (started < wanted && nreqs >= started)
281	start_thread ();	452	start_thread ();
282		453
283	nreqs++;	454	++nreqs;
284		455
285	pthread_mutex_lock (&reqlock);	456	pthread_mutex_lock (&reqlock);
286		457
287	req->next = 0;	458	req->next = 0;
288		459
…		…
307		478
308	poll_wait ();	479	poll_wait ();
309	}	480	}
310	}	481	}
311		482
312	static void	483	static void end_thread (void)
313	end_thread (void)
314	{	484	{
315	aio_req req;	485	aio_req req;
316	Newz (0, req, 1, aio_cb);	486	Newz (0, req, 1, aio_cb);
317	req->type = REQ_QUIT;	487	req->type = REQ_QUIT;
318		488
319	send_req (req);	489	req_send (req);
320	}	490	}
321		491
322	static void min_parallel (int nthreads)	492	static void min_parallel (int nthreads)
323	{	493	{
324	if (wanted < nthreads)	494	if (wanted < nthreads)
…		…
369	* normal read/write by using a mutex. slows down execution a lot,	539	* normal read/write by using a mutex. slows down execution a lot,
370	* but that's your problem, not mine.	540	* but that's your problem, not mine.
371	*/	541	*/
372	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	542	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
373		543
374	static ssize_t	544	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
375	pread (int fd, void *buf, size_t count, off_t offset)
376	{	545	{
377	ssize_t res;	546	ssize_t res;
378	off_t ooffset;	547	off_t ooffset;
379		548
380	pthread_mutex_lock (&preadwritelock);	549	pthread_mutex_lock (&preadwritelock);
…		…
385	pthread_mutex_unlock (&preadwritelock);	554	pthread_mutex_unlock (&preadwritelock);
386		555
387	return res;	556	return res;
388	}	557	}
389		558
390	static ssize_t
391	pwrite (int fd, void *buf, size_t count, off_t offset)	559	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
392	{	560	{
393	ssize_t res;	561	ssize_t res;
394	off_t ooffset;	562	off_t ooffset;
395		563
396	pthread_mutex_lock (&preadwritelock);	564	pthread_mutex_lock (&preadwritelock);
…		…
409	#endif	577	#endif
410		578
411	#if !HAVE_READAHEAD	579	#if !HAVE_READAHEAD
412	# define readahead aio_readahead	580	# define readahead aio_readahead
413		581
414	static ssize_t
415	readahead (int fd, off_t offset, size_t count)	582	static ssize_t readahead (int fd, off_t offset, size_t count)
416	{	583	{
417	char readahead_buf[4096];	584	char readahead_buf[4096];
418		585
419	while (count > 0)	586	while (count > 0)
420	{	587	{
…		…
432	#if !HAVE_READDIR_R	599	#if !HAVE_READDIR_R
433	# define readdir_r aio_readdir_r	600	# define readdir_r aio_readdir_r
434		601
435	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	602	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
436		603
437	static int
438	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	604	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
439	{	605	{
440	struct dirent *e;	606	struct dirent *e;
441	int errorno;	607	int errorno;
442		608
443	pthread_mutex_lock (&readdirlock);	609	pthread_mutex_lock (&readdirlock);
…		…
459	return e ? 0 : -1;	625	return e ? 0 : -1;
460	}	626	}
461	#endif	627	#endif
462		628
463	/* sendfile always needs emulation */	629	/* sendfile always needs emulation */
464	static ssize_t
465	sendfile_ (int ofd, int ifd, off_t offset, size_t count)	630	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
466	{	631	{
467	ssize_t res;	632	ssize_t res;
468		633
469	if (!count)	634	if (!count)
470	return 0;	635	return 0;
…		…
552		717
553	return res;	718	return res;
554	}	719	}
555		720
556	/* read a full directory */	721	/* read a full directory */
557	static int
558	scandir_ (const char path, void *namesp)	722	static int scandir_ (const char path, void *namesp)
559	{	723	{
560	DIR *dirp = opendir (path);	724	DIR *dirp = opendir (path);
561	union	725	union
562	{	726	{
563	struct dirent d;	727	struct dirent d;
…		…
617	return res;	781	return res;
618	}	782	}
619		783
620	/*****************************************************************************/	784	/*****************************************************************************/
621		785
622	static void *
623	aio_proc (void *thr_arg)	786	static void aio_proc (void thr_arg)
624	{	787	{
625	aio_req req;	788	aio_req req;
626	int type;	789	int type;
627		790
628	do	791	do
…		…
646	}	809	}
647		810
648	pthread_mutex_unlock (&reqlock);	811	pthread_mutex_unlock (&reqlock);
649		812
650	errno = 0; /* strictly unnecessary */	813	errno = 0; /* strictly unnecessary */
		814	type = req->type; /* remember type for QUIT check */
651		815
652	type = req->type;	816	if (!(req->flags & FLAG_CANCELLED))
653
654	switch (type)	817	switch (type)
655	{	818	{
656	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	819	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
657	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	820	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
658		821
659	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	822	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
660	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;	823	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
661		824
662	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	825	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
663	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	826	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
664	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	827	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
665		828
666	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	829	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
667	case REQ_CLOSE: req->result = close (req->fd); break;	830	case REQ_CLOSE: req->result = close (req->fd); break;
668	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	831	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
669	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	832	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		833	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
		834	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
670	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	835	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
671		836
672	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	837	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
673	case REQ_FSYNC: req->result = fsync (req->fd); break;	838	case REQ_FSYNC: req->result = fsync (req->fd); break;
674	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	839	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
675		840
		841	case REQ_SLEEP:
		842	{
		843	struct timeval tv;
		844
		845	tv.tv_sec = req->fd;
		846	tv.tv_usec = req->fd2;
		847
		848	req->result = select (0, 0, 0, 0, &tv);
		849	}
		850
		851	case REQ_GROUP:
		852	case REQ_NOP:
676	case REQ_QUIT:	853	case REQ_QUIT:
677	break;	854	break;
678		855
679	default:	856	default:
680	req->result = ENOSYS;	857	req->result = ENOSYS;
681	break;	858	break;
682	}	859	}
683		860
684	req->errorno = errno;	861	req->errorno = errno;
685		862
686	pthread_mutex_lock (&reslock);	863	pthread_mutex_lock (&reslock);
687		864
…		…
741		918
742	while (reqs)	919	while (reqs)
743	{	920	{
744	prv = reqs;	921	prv = reqs;
745	reqs = prv->next;	922	reqs = prv->next;
746	free_req (prv);	923	req_free (prv);
747	}	924	}
748		925
749	reqs = reqe = 0;	926	reqs = reqe = 0;
750		927
751	while (ress)	928	while (ress)
752	{	929	{
753	prv = ress;	930	prv = ress;
754	ress = prv->next;	931	ress = prv->next;
755	free_req (prv);	932	req_free (prv);
756	}	933	}
757		934
758	ress = rese = 0;	935	ress = rese = 0;
759		936
760	close (respipe [0]);	937	close (respipe [0]);
…		…
764	atfork_parent ();	941	atfork_parent ();
765	}	942	}
766		943
767	#define dREQ \	944	#define dREQ \
768	aio_req req; \	945	aio_req req; \
		946	int req_pri = next_pri; \
		947	next_pri = DEFAULT_PRI + PRI_BIAS; \
769	\	948	\
770	if (SvOK (callback) && !SvROK (callback)) \	949	if (SvOK (callback) && !SvROK (callback)) \
771	croak ("clalback must be undef or of reference type"); \	950	croak ("callback must be undef or of reference type"); \
772	\	951	\
773	Newz (0, req, 1, aio_cb); \	952	Newz (0, req, 1, aio_cb); \
774	if (!req) \	953	if (!req) \
775	croak ("out of memory during aio_req allocation"); \	954	croak ("out of memory during aio_req allocation"); \
776	\	955	\
777	req->callback = newSVsv (callback);	956	req->callback = newSVsv (callback); \
		957	req->pri = req_pri
		958
		959	#define REQ_SEND \
		960	req_send (req); \
		961	\
		962	if (GIMME_V != G_VOID) \
		963	XPUSHs (req_sv (req, AIO_REQ_KLASS));
778		964
779	MODULE = IO::AIO PACKAGE = IO::AIO	965	MODULE = IO::AIO PACKAGE = IO::AIO
780		966
781	PROTOTYPES: ENABLE	967	PROTOTYPES: ENABLE
782		968
783	BOOT:	969	BOOT:
784	{	970	{
		971	HV *stash = gv_stashpv ("IO::AIO", 1);
		972	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
		973	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
		974	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		975
785	create_pipe ();	976	create_pipe ();
786	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	977	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
787	}	978	}
788		979
789	void	980	void
790	min_parallel(nthreads)	981	min_parallel (nthreads)
791	int nthreads	982	int nthreads
792	PROTOTYPE: $	983	PROTOTYPE: $
793		984
794	void	985	void
795	max_parallel(nthreads)	986	max_parallel (nthreads)
796	int nthreads	987	int nthreads
797	PROTOTYPE: $	988	PROTOTYPE: $
798		989
799	int	990	int
800	max_outstanding(nreqs)	991	max_outstanding (nreqs)
801	int nreqs	992	int nreqs
802	PROTOTYPE: $	993	PROTOTYPE: $
803	CODE:	994	CODE:
804	RETVAL = max_outstanding;	995	RETVAL = max_outstanding;
805	max_outstanding = nreqs;	996	max_outstanding = nreqs;
806		997
807	void	998	void
808	aio_open(pathname,flags,mode,callback=&PL_sv_undef)	999	aio_open (pathname,flags,mode,callback=&PL_sv_undef)
809	SV * pathname	1000	SV * pathname
810	int flags	1001	int flags
811	int mode	1002	int mode
812	SV * callback	1003	SV * callback
813	PROTOTYPE: $$$;$	1004	PROTOTYPE: $$$;$
814	CODE:	1005	PPCODE:
815	{	1006	{
816	dREQ;	1007	dREQ;
817		1008
818	req->type = REQ_OPEN;	1009	req->type = REQ_OPEN;
819	req->data = newSVsv (pathname);	1010	req->data = newSVsv (pathname);
820	req->dataptr = SvPVbyte_nolen (req->data);	1011	req->dataptr = SvPVbyte_nolen (req->data);
821	req->fd = flags;	1012	req->fd = flags;
822	req->mode = mode;	1013	req->mode = mode;
823		1014
824	send_req (req);	1015	REQ_SEND;
825	}	1016	}
826		1017
827	void	1018	void
828	aio_close(fh,callback=&PL_sv_undef)	1019	aio_close (fh,callback=&PL_sv_undef)
829	SV * fh	1020	SV * fh
830	SV * callback	1021	SV * callback
831	PROTOTYPE: $;$	1022	PROTOTYPE: $;$
832	ALIAS:	1023	ALIAS:
833	aio_close = REQ_CLOSE	1024	aio_close = REQ_CLOSE
834	aio_fsync = REQ_FSYNC	1025	aio_fsync = REQ_FSYNC
835	aio_fdatasync = REQ_FDATASYNC	1026	aio_fdatasync = REQ_FDATASYNC
836	CODE:	1027	PPCODE:
837	{	1028	{
838	dREQ;	1029	dREQ;
839		1030
840	req->type = ix;	1031	req->type = ix;
841	req->fh = newSVsv (fh);	1032	req->fh = newSVsv (fh);
842	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1033	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
843		1034
844	send_req (req);	1035	REQ_SEND (req);
845	}	1036	}
846		1037
847	void	1038	void
848	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1039	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
849	SV * fh	1040	SV * fh
850	UV offset	1041	UV offset
851	UV length	1042	UV length
852	SV * data	1043	SV * data
853	UV dataoffset	1044	UV dataoffset
854	SV * callback	1045	SV * callback
855	ALIAS:	1046	ALIAS:
856	aio_read = REQ_READ	1047	aio_read = REQ_READ
857	aio_write = REQ_WRITE	1048	aio_write = REQ_WRITE
858	PROTOTYPE: $$$$$;$	1049	PROTOTYPE: $$$$$;$
859	CODE:	1050	PPCODE:
860	{	1051	{
861	aio_req req;	1052	aio_req req;
862	STRLEN svlen;	1053	STRLEN svlen;
863	char *svptr = SvPVbyte (data, svlen);	1054	char *svptr = SvPVbyte (data, svlen);
864		1055
…		…
902	{	1093	{
903	SvREADONLY_on (data);	1094	SvREADONLY_on (data);
904	req->data2ptr = (void *)data;	1095	req->data2ptr = (void *)data;
905	}	1096	}
906		1097
907	send_req (req);	1098	REQ_SEND;
908	}	1099	}
909	}	1100	}
910		1101
911	void	1102	void
912	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1103	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
913	SV * out_fh	1104	SV * out_fh
914	SV * in_fh	1105	SV * in_fh
915	UV in_offset	1106	UV in_offset
916	UV length	1107	UV length
917	SV * callback	1108	SV * callback
918	PROTOTYPE: $$$$;$	1109	PROTOTYPE: $$$$;$
919	CODE:	1110	PPCODE:
920	{	1111	{
921	dREQ;	1112	dREQ;
922		1113
923	req->type = REQ_SENDFILE;	1114	req->type = REQ_SENDFILE;
924	req->fh = newSVsv (out_fh);	1115	req->fh = newSVsv (out_fh);
…		…
926	req->fh2 = newSVsv (in_fh);	1117	req->fh2 = newSVsv (in_fh);
927	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1118	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
928	req->offset = in_offset;	1119	req->offset = in_offset;
929	req->length = length;	1120	req->length = length;
930		1121
931	send_req (req);	1122	REQ_SEND;
932	}	1123	}
933		1124
934	void	1125	void
935	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	1126	aio_readahead (fh,offset,length,callback=&PL_sv_undef)
936	SV * fh	1127	SV * fh
937	UV offset	1128	UV offset
938	IV length	1129	IV length
939	SV * callback	1130	SV * callback
940	PROTOTYPE: $$$;$	1131	PROTOTYPE: $$$;$
941	CODE:	1132	PPCODE:
942	{	1133	{
943	dREQ;	1134	dREQ;
944		1135
945	req->type = REQ_READAHEAD;	1136	req->type = REQ_READAHEAD;
946	req->fh = newSVsv (fh);	1137	req->fh = newSVsv (fh);
947	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1138	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
948	req->offset = offset;	1139	req->offset = offset;
949	req->length = length;	1140	req->length = length;
950		1141
951	send_req (req);	1142	REQ_SEND;
952	}	1143	}
953		1144
954	void	1145	void
955	aio_stat(fh_or_path,callback=&PL_sv_undef)	1146	aio_stat (fh_or_path,callback=&PL_sv_undef)
956	SV * fh_or_path	1147	SV * fh_or_path
957	SV * callback	1148	SV * callback
958	ALIAS:	1149	ALIAS:
959	aio_stat = REQ_STAT	1150	aio_stat = REQ_STAT
960	aio_lstat = REQ_LSTAT	1151	aio_lstat = REQ_LSTAT
961	CODE:	1152	PPCODE:
962	{	1153	{
963	dREQ;	1154	dREQ;
964		1155
965	New (0, req->statdata, 1, Stat_t);	1156	New (0, req->statdata, 1, Stat_t);
966	if (!req->statdata)	1157	if (!req->statdata)
967	{	1158	{
968	free_req (req);	1159	req_free (req);
969	croak ("out of memory during aio_req->statdata allocation");	1160	croak ("out of memory during aio_req->statdata allocation");
970	}	1161	}
971		1162
972	if (SvPOK (fh_or_path))	1163	if (SvPOK (fh_or_path))
973	{	1164	{
…		…
980	req->type = REQ_FSTAT;	1171	req->type = REQ_FSTAT;
981	req->fh = newSVsv (fh_or_path);	1172	req->fh = newSVsv (fh_or_path);
982	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1173	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
983	}	1174	}
984		1175
985	send_req (req);	1176	REQ_SEND;
986	}	1177	}
987		1178
988	void	1179	void
989	aio_unlink(pathname,callback=&PL_sv_undef)	1180	aio_unlink (pathname,callback=&PL_sv_undef)
990	SV * pathname	1181	SV * pathname
991	SV * callback	1182	SV * callback
992	ALIAS:	1183	ALIAS:
993	aio_unlink = REQ_UNLINK	1184	aio_unlink = REQ_UNLINK
994	aio_rmdir = REQ_RMDIR	1185	aio_rmdir = REQ_RMDIR
		1186	aio_readdir = REQ_READDIR
995	CODE:	1187	PPCODE:
996	{	1188	{
997	dREQ;	1189	dREQ;
998		1190
999	req->type = ix;	1191	req->type = ix;
1000	req->data = newSVsv (pathname);	1192	req->data = newSVsv (pathname);
1001	req->dataptr = SvPVbyte_nolen (req->data);	1193	req->dataptr = SvPVbyte_nolen (req->data);
1002		1194
1003	send_req (req);	1195	REQ_SEND;
1004	}	1196	}
1005		1197
1006	void	1198	void
1007	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)	1199	aio_link (oldpath,newpath,callback=&PL_sv_undef)
1008	SV * oldpath	1200	SV * oldpath
1009	SV * newpath	1201	SV * newpath
1010	SV * callback	1202	SV * callback
		1203	ALIAS:
		1204	aio_link = REQ_LINK
		1205	aio_symlink = REQ_SYMLINK
		1206	aio_rename = REQ_RENAME
1011	CODE:	1207	PPCODE:
1012	{	1208	{
1013	dREQ;	1209	dREQ;
1014		1210
1015	req->type = REQ_SYMLINK;	1211	req->type = ix;
1016	req->fh = newSVsv (oldpath);	1212	req->fh = newSVsv (oldpath);
1017	req->data2ptr = SvPVbyte_nolen (req->fh);	1213	req->data2ptr = SvPVbyte_nolen (req->fh);
1018	req->data = newSVsv (newpath);	1214	req->data = newSVsv (newpath);
1019	req->dataptr = SvPVbyte_nolen (req->data);	1215	req->dataptr = SvPVbyte_nolen (req->data);
1020		1216
1021	send_req (req);	1217	REQ_SEND;
1022	}	1218	}
1023		1219
1024	void	1220	void
1025	aio_readdir(pathname,callback=&PL_sv_undef)	1221	aio_sleep (delay,callback=&PL_sv_undef)
1026	SV * pathname	1222	double delay
1027	SV * callback	1223	SV * callback
		1224	PPCODE:
		1225	{
		1226	dREQ;
		1227
		1228	req->type = REQ_SLEEP;
		1229	req->fd = delay < 0. ? 0 : delay;
		1230	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
		1231
		1232	REQ_SEND;
		1233	}
		1234
		1235	void
		1236	aio_group (callback=&PL_sv_undef)
		1237	SV * callback
		1238	PROTOTYPE: ;$
		1239	PPCODE:
		1240	{
		1241	dREQ;
		1242
		1243	req->type = REQ_GROUP;
		1244	req_send (req);
		1245
		1246	XPUSHs (req_sv (req, AIO_GRP_KLASS));
		1247	}
		1248
		1249	void
		1250	aio_nop (callback=&PL_sv_undef)
		1251	SV * callback
		1252	PPCODE:
		1253	{
		1254	dREQ;
		1255
		1256	req->type = REQ_NOP;
		1257
		1258	REQ_SEND;
		1259	}
		1260
		1261	#if 0
		1262
		1263	void
		1264	aio_pri (int pri = DEFAULT_PRI)
1028	CODE:	1265	CODE:
1029	{	1266	if (pri < PRI_MIN) pri = PRI_MIN;
1030	dREQ;	1267	if (pri > PRI_MAX) pri = PRI_MAX;
1031		1268	next_pri = pri + PRI_BIAS;
1032	req->type = REQ_READDIR;
1033	req->data = newSVsv (pathname);
1034	req->dataptr = SvPVbyte_nolen (req->data);
1035
1036	send_req (req);
1037	}
1038		1269
		1270	#endif
		1271
1039	void	1272	void
1040	flush()	1273	flush ()
1041	PROTOTYPE:	1274	PROTOTYPE:
1042	CODE:	1275	CODE:
1043	while (nreqs)	1276	while (nreqs)
1044	{	1277	{
1045	poll_wait ();	1278	poll_wait ();
…		…
1085	CODE:	1318	CODE:
1086	RETVAL = nreqs;	1319	RETVAL = nreqs;
1087	OUTPUT:	1320	OUTPUT:
1088	RETVAL	1321	RETVAL
1089		1322
		1323	PROTOTYPES: DISABLE
		1324
		1325	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
		1326
		1327	void
		1328	cancel (aio_req_ornot req)
		1329	PROTOTYPE:
		1330	CODE:
		1331	req_cancel (req);
		1332
		1333	void
		1334	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1335	CODE:
		1336	SvREFCNT_dec (req->callback);
		1337	req->callback = newSVsv (callback);
		1338
		1339	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
		1340
		1341	void
		1342	add (aio_req grp, ...)
		1343	PPCODE:
		1344	{
		1345	int i;
		1346	aio_req req;
		1347
		1348	if (grp->fd == 2)
		1349	croak ("cannot add requests to IO::AIO::GRP after the group finished");
		1350
		1351	for (i = 1; i < items; ++i )
		1352	{
		1353	if (GIMME_V != G_VOID)
		1354	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1355
		1356	req = SvAIO_REQ (ST (i));
		1357
		1358	if (req)
		1359	{
		1360	++grp->length;
		1361	req->grp = grp;
		1362
		1363	req->grp_prev = 0;
		1364	req->grp_next = grp->grp_first;
		1365
		1366	if (grp->grp_first)
		1367	grp->grp_first->grp_prev = req;
		1368
		1369	grp->grp_first = req;
		1370	}
		1371	}
		1372	}
		1373
		1374	void
		1375	result (aio_req grp, ...)
		1376	CODE:
		1377	{
		1378	int i;
		1379	AV *av = newAV ();
		1380
		1381	for (i = 1; i < items; ++i )
		1382	av_push (av, newSVsv (ST (i)));
		1383
		1384	SvREFCNT_dec (grp->data);
		1385	grp->data = (SV *)av;
		1386	}
		1387
		1388	void
		1389	feed_limit (aio_req grp, int limit)
		1390	CODE:
		1391	grp->fd2 = limit;
		1392	aio_grp_feed (grp);
		1393
		1394	void
		1395	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1396	CODE:
		1397	{
		1398	SvREFCNT_dec (grp->fh2);
		1399	grp->fh2 = newSVsv (callback);
		1400
		1401	if (grp->fd2 <= 0)
		1402	grp->fd2 = 2;
		1403
		1404	aio_grp_feed (grp);
		1405	}
		1406

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.39 by root, Mon Feb 6 23:54:12 2006 UTC vs. Revision 1.62 by root, Mon Oct 23 22:45:18 2006 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.39 by root, Mon Feb 6 23:54:12 2006 UTC vs.
Revision 1.62 by root, Mon Oct 23 22:45:18 2006 UTC