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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.40 by root, Sat Jun 24 16:27:02 2006 UTC vs.
Revision 1.60 by root, Mon Oct 23 20:05:27 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>
…		…
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, REQ_RENAME,	57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
55	REQ_READDIR,	58	REQ_READDIR,
56	REQ_LINK, 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);
93	static void free_req (aio_req req)	122	static void req_free (aio_req req);
94	{
95	if (req->data)
96	SvREFCNT_dec (req->data);
97		123
		124	/* must be called at most once */
		125	static SV req_sv (aio_req req, const char klass)
		126	{
98	if (req->fh)	127	if (!req->self)
99	SvREFCNT_dec (req->fh);	128	{
		129	req->self = (SV *)newHV ();
		130	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		131	}
100		132
101	if (req->fh2)	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	{
102	SvREFCNT_dec (req->fh2);	172	SvREFCNT_dec (grp->fh2);
103		173	grp->fh2 = 0;
104	if (req->statdata)	174	break;
105	Safefree (req->statdata);	175	}
106
107	if (req->callback)
108	SvREFCNT_dec (req->callback);
109
110	if (req->type == REQ_READDIR && req->result >= 0)
111	free (req->data2ptr);
112
113	Safefree (req);
114	}
115
116	static void
117	poll_wait ()
118	{
119	if (nreqs && !ress)
120	{	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	while (nreqs)
		197	{
		198	aio_req req;
		199	pthread_mutex_lock (&reslock);
		200	req = ress;
		201	pthread_mutex_unlock (&reslock);
		202
		203	if (req)
		204	return;
		205
121	fd_set rfd;	206	fd_set rfd;
122	FD_ZERO(&rfd);	207	FD_ZERO(&rfd);
123	FD_SET(respipe [0], &rfd);	208	FD_SET(respipe [0], &rfd);
124		209
125	select (respipe [0] + 1, &rfd, 0, 0, 0);	210	select (respipe [0] + 1, &rfd, 0, 0, 0);
126	}	211	}
127	}	212	}
128		213
129	static int	214	static void req_invoke (aio_req req)
130	poll_cb ()	215	{
		216	dSP;
		217	int errorno = errno;
		218
		219	if (req->flags & FLAG_CANCELLED \|\| !SvOK (req->callback))
		220	return;
		221
		222	errno = req->errorno;
		223
		224	ENTER;
		225	SAVETMPS;
		226	PUSHMARK (SP);
		227	EXTEND (SP, 1);
		228
		229	switch (req->type)
		230	{
		231	case REQ_READDIR:
		232	{
		233	SV *rv = &PL_sv_undef;
		234
		235	if (req->result >= 0)
		236	{
		237	char *buf = req->data2ptr;
		238	AV *av = newAV ();
		239
		240	while (req->result)
		241	{
		242	SV *sv = newSVpv (buf, 0);
		243
		244	av_push (av, sv);
		245	buf += SvCUR (sv) + 1;
		246	req->result--;
		247	}
		248
		249	rv = sv_2mortal (newRV_noinc ((SV *)av));
		250	}
		251
		252	PUSHs (rv);
		253	}
		254	break;
		255
		256	case REQ_OPEN:
		257	{
		258	/* convert fd to fh */
		259	SV *fh;
		260
		261	PUSHs (sv_2mortal (newSViv (req->result)));
		262	PUTBACK;
		263	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		264	SPAGAIN;
		265
		266	fh = SvREFCNT_inc (POPs);
		267
		268	PUSHMARK (SP);
		269	XPUSHs (sv_2mortal (fh));
		270	}
		271	break;
		272
		273	case REQ_GROUP:
		274	req->fd = 2; /* mark group as finished */
		275
		276	if (req->data)
		277	{
		278	int i;
		279	AV av = (AV )req->data;
		280
		281	EXTEND (SP, AvFILL (av) + 1);
		282	for (i = 0; i <= AvFILL (av); ++i)
		283	PUSHs (*av_fetch (av, i, 0));
		284	}
		285	break;
		286
		287	case REQ_NOP:
		288	case REQ_SLEEP:
		289	break;
		290
		291	default:
		292	PUSHs (sv_2mortal (newSViv (req->result)));
		293	break;
		294	}
		295
		296
		297	PUTBACK;
		298	call_sv (req->callback, G_VOID \| G_EVAL);
		299	SPAGAIN;
		300
		301	FREETMPS;
		302	LEAVE;
		303
		304	errno = errorno;
		305
		306	if (SvTRUE (ERRSV))
		307	{
		308	req_free (req);
		309	croak (0);
		310	}
		311	}
		312
		313	static void req_free (aio_req req)
		314	{
		315	if (req->grp)
		316	{
		317	aio_req grp = req->grp;
		318
		319	/* unlink request */
		320	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		321	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		322
		323	if (grp->grp_first == req)
		324	grp->grp_first = req->grp_next;
		325
		326	aio_grp_dec (grp);
		327	}
		328
		329	if (req->self)
		330	{
		331	sv_unmagic (req->self, PERL_MAGIC_ext);
		332	SvREFCNT_dec (req->self);
		333	}
		334
		335	SvREFCNT_dec (req->data);
		336	SvREFCNT_dec (req->fh);
		337	SvREFCNT_dec (req->fh2);
		338	SvREFCNT_dec (req->callback);
		339	Safefree (req->statdata);
		340
		341	if (req->type == REQ_READDIR && req->result >= 0)
		342	free (req->data2ptr);
		343
		344	Safefree (req);
		345	}
		346
		347	static void req_cancel (aio_req req)
		348	{
		349	req->flags \|= FLAG_CANCELLED;
		350
		351	if (req->type == REQ_GROUP)
		352	{
		353	aio_req sub;
		354
		355	for (sub = req->grp_first; sub; sub = sub->grp_next)
		356	req_cancel (sub);
		357	}
		358	}
		359
		360	static int poll_cb ()
131	{	361	{
132	dSP;	362	dSP;
133	int count = 0;	363	int count = 0;
134	int do_croak = 0;	364	int do_croak = 0;
135	aio_req req;	365	aio_req req;
…		…
157	pthread_mutex_unlock (&reslock);	387	pthread_mutex_unlock (&reslock);
158		388
159	if (!req)	389	if (!req)
160	break;	390	break;
161		391
162	nreqs--;	392	--nreqs;
163		393
164	if (req->type == REQ_QUIT)	394	if (req->type == REQ_QUIT)
165	started--;	395	started--;
		396	else if (req->type == REQ_GROUP && req->length)
		397	{
		398	req->fd = 1; /* mark request as delayed */
		399	continue;
		400	}
166	else	401	else
167	{	402	{
168	int errorno = errno;
169	errno = req->errorno;
170
171	if (req->type == REQ_READ)	403	if (req->type == REQ_READ)
172	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	404	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
173		405
174	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	406	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
175	SvREADONLY_off (req->data);	407	SvREADONLY_off (req->data);
…		…
179	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	411	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
180	PL_laststatval = req->result;	412	PL_laststatval = req->result;
181	PL_statcache = *(req->statdata);	413	PL_statcache = *(req->statdata);
182	}	414	}
183		415
184	ENTER;	416	req_invoke (req);
185	PUSHMARK (SP);
186		417
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++;	418	count++;
247	}	419	}
248		420
249	free_req (req);	421	req_free (req);
250	}	422	}
251		423
252	return count;	424	return count;
253	}	425	}
254		426
255	static void aio_proc(void arg);	427	static void aio_proc(void arg);
256		428
257	static void
258	start_thread (void)	429	static void start_thread (void)
259	{	430	{
260	sigset_t fullsigset, oldsigset;	431	sigset_t fullsigset, oldsigset;
261	pthread_t tid;	432	pthread_t tid;
262	pthread_attr_t attr;	433	pthread_attr_t attr;
263		434
…		…
272	started++;	443	started++;
273		444
274	sigprocmask (SIG_SETMASK, &oldsigset, 0);	445	sigprocmask (SIG_SETMASK, &oldsigset, 0);
275	}	446	}
276		447
277	static void	448	static void req_send (aio_req req)
278	send_req (aio_req req)
279	{	449	{
280	while (started < wanted && nreqs >= started)	450	while (started < wanted && nreqs >= started)
281	start_thread ();	451	start_thread ();
282		452
283	nreqs++;	453	++nreqs;
284		454
285	pthread_mutex_lock (&reqlock);	455	pthread_mutex_lock (&reqlock);
286		456
287	req->next = 0;	457	req->next = 0;
288		458
…		…
307		477
308	poll_wait ();	478	poll_wait ();
309	}	479	}
310	}	480	}
311		481
312	static void	482	static void end_thread (void)
313	end_thread (void)
314	{	483	{
315	aio_req req;	484	aio_req req;
316	Newz (0, req, 1, aio_cb);	485	Newz (0, req, 1, aio_cb);
317	req->type = REQ_QUIT;	486	req->type = REQ_QUIT;
318		487
319	send_req (req);	488	req_send (req);
320	}	489	}
321		490
322	static void min_parallel (int nthreads)	491	static void min_parallel (int nthreads)
323	{	492	{
324	if (wanted < nthreads)	493	if (wanted < nthreads)
…		…
369	* normal read/write by using a mutex. slows down execution a lot,	538	* normal read/write by using a mutex. slows down execution a lot,
370	* but that's your problem, not mine.	539	* but that's your problem, not mine.
371	*/	540	*/
372	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	541	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
373		542
374	static ssize_t	543	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	{	544	{
377	ssize_t res;	545	ssize_t res;
378	off_t ooffset;	546	off_t ooffset;
379		547
380	pthread_mutex_lock (&preadwritelock);	548	pthread_mutex_lock (&preadwritelock);
…		…
385	pthread_mutex_unlock (&preadwritelock);	553	pthread_mutex_unlock (&preadwritelock);
386		554
387	return res;	555	return res;
388	}	556	}
389		557
390	static ssize_t
391	pwrite (int fd, void *buf, size_t count, off_t offset)	558	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
392	{	559	{
393	ssize_t res;	560	ssize_t res;
394	off_t ooffset;	561	off_t ooffset;
395		562
396	pthread_mutex_lock (&preadwritelock);	563	pthread_mutex_lock (&preadwritelock);
…		…
409	#endif	576	#endif
410		577
411	#if !HAVE_READAHEAD	578	#if !HAVE_READAHEAD
412	# define readahead aio_readahead	579	# define readahead aio_readahead
413		580
414	static ssize_t
415	readahead (int fd, off_t offset, size_t count)	581	static ssize_t readahead (int fd, off_t offset, size_t count)
416	{	582	{
417	char readahead_buf[4096];	583	char readahead_buf[4096];
418		584
419	while (count > 0)	585	while (count > 0)
420	{	586	{
…		…
432	#if !HAVE_READDIR_R	598	#if !HAVE_READDIR_R
433	# define readdir_r aio_readdir_r	599	# define readdir_r aio_readdir_r
434		600
435	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	601	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
436		602
437	static int
438	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	603	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
439	{	604	{
440	struct dirent *e;	605	struct dirent *e;
441	int errorno;	606	int errorno;
442		607
443	pthread_mutex_lock (&readdirlock);	608	pthread_mutex_lock (&readdirlock);
…		…
459	return e ? 0 : -1;	624	return e ? 0 : -1;
460	}	625	}
461	#endif	626	#endif
462		627
463	/* sendfile always needs emulation */	628	/* sendfile always needs emulation */
464	static ssize_t
465	sendfile_ (int ofd, int ifd, off_t offset, size_t count)	629	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
466	{	630	{
467	ssize_t res;	631	ssize_t res;
468		632
469	if (!count)	633	if (!count)
470	return 0;	634	return 0;
…		…
552		716
553	return res;	717	return res;
554	}	718	}
555		719
556	/* read a full directory */	720	/* read a full directory */
557	static int
558	scandir_ (const char path, void *namesp)	721	static int scandir_ (const char path, void *namesp)
559	{	722	{
560	DIR *dirp = opendir (path);	723	DIR *dirp = opendir (path);
561	union	724	union
562	{	725	{
563	struct dirent d;	726	struct dirent d;
…		…
617	return res;	780	return res;
618	}	781	}
619		782
620	/*****************************************************************************/	783	/*****************************************************************************/
621		784
622	static void *
623	aio_proc (void *thr_arg)	785	static void aio_proc (void thr_arg)
624	{	786	{
625	aio_req req;	787	aio_req req;
626	int type;	788	int type;
627		789
628	do	790	do
…		…
646	}	808	}
647		809
648	pthread_mutex_unlock (&reqlock);	810	pthread_mutex_unlock (&reqlock);
649		811
650	errno = 0; /* strictly unnecessary */	812	errno = 0; /* strictly unnecessary */
		813	type = req->type; /* remember type for QUIT check */
651		814
652	type = req->type;	815	if (!(req->flags & FLAG_CANCELLED))
653
654	switch (type)	816	switch (type)
655	{	817	{
656	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	818	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;	819	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
658		820
659	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	821	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;	822	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
661		823
662	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	824	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
663	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	825	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
664	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	826	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
665		827
666	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	828	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
667	case REQ_CLOSE: req->result = close (req->fd); break;	829	case REQ_CLOSE: req->result = close (req->fd); break;
668	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	830	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
669	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	831	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
670	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;	832	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
671	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	833	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
672	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	834	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
673		835
674	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	836	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
675	case REQ_FSYNC: req->result = fsync (req->fd); break;	837	case REQ_FSYNC: req->result = fsync (req->fd); break;
676	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	838	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
677		839
		840	case REQ_SLEEP:
		841	{
		842	struct timeval tv;
		843
		844	tv.tv_sec = req->fd;
		845	tv.tv_usec = req->fd2;
		846
		847	req->result = select (0, 0, 0, 0, &tv);
		848	}
		849
		850	case REQ_GROUP:
		851	case REQ_NOP:
678	case REQ_QUIT:	852	case REQ_QUIT:
679	break;	853	break;
680		854
681	default:	855	default:
682	req->result = ENOSYS;	856	req->result = ENOSYS;
683	break;	857	break;
684	}	858	}
685		859
686	req->errorno = errno;	860	req->errorno = errno;
687		861
688	pthread_mutex_lock (&reslock);	862	pthread_mutex_lock (&reslock);
689		863
…		…
743		917
744	while (reqs)	918	while (reqs)
745	{	919	{
746	prv = reqs;	920	prv = reqs;
747	reqs = prv->next;	921	reqs = prv->next;
748	free_req (prv);	922	req_free (prv);
749	}	923	}
750		924
751	reqs = reqe = 0;	925	reqs = reqe = 0;
752		926
753	while (ress)	927	while (ress)
754	{	928	{
755	prv = ress;	929	prv = ress;
756	ress = prv->next;	930	ress = prv->next;
757	free_req (prv);	931	req_free (prv);
758	}	932	}
759		933
760	ress = rese = 0;	934	ress = rese = 0;
761		935
762	close (respipe [0]);	936	close (respipe [0]);
…		…
766	atfork_parent ();	940	atfork_parent ();
767	}	941	}
768		942
769	#define dREQ \	943	#define dREQ \
770	aio_req req; \	944	aio_req req; \
		945	int req_pri = next_pri; \
		946	next_pri = DEFAULT_PRI + PRI_BIAS; \
771	\	947	\
772	if (SvOK (callback) && !SvROK (callback)) \	948	if (SvOK (callback) && !SvROK (callback)) \
773	croak ("clalback must be undef or of reference type"); \	949	croak ("callback must be undef or of reference type"); \
774	\	950	\
775	Newz (0, req, 1, aio_cb); \	951	Newz (0, req, 1, aio_cb); \
776	if (!req) \	952	if (!req) \
777	croak ("out of memory during aio_req allocation"); \	953	croak ("out of memory during aio_req allocation"); \
778	\	954	\
779	req->callback = newSVsv (callback);	955	req->callback = newSVsv (callback); \
		956	req->pri = req_pri
		957
		958	#define REQ_SEND \
		959	req_send (req); \
		960	\
		961	if (GIMME_V != G_VOID) \
		962	XPUSHs (req_sv (req, AIO_REQ_KLASS));
780		963
781	MODULE = IO::AIO PACKAGE = IO::AIO	964	MODULE = IO::AIO PACKAGE = IO::AIO
782		965
783	PROTOTYPES: ENABLE	966	PROTOTYPES: ENABLE
784		967
785	BOOT:	968	BOOT:
786	{	969	{
		970	HV *stash = gv_stashpv ("IO::AIO", 1);
		971	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
		972	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
		973	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		974
787	create_pipe ();	975	create_pipe ();
788	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	976	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
789	}	977	}
790		978
791	void	979	void
…		…
811	SV * pathname	999	SV * pathname
812	int flags	1000	int flags
813	int mode	1001	int mode
814	SV * callback	1002	SV * callback
815	PROTOTYPE: $$$;$	1003	PROTOTYPE: $$$;$
816	CODE:	1004	PPCODE:
817	{	1005	{
818	dREQ;	1006	dREQ;
819		1007
820	req->type = REQ_OPEN;	1008	req->type = REQ_OPEN;
821	req->data = newSVsv (pathname);	1009	req->data = newSVsv (pathname);
822	req->dataptr = SvPVbyte_nolen (req->data);	1010	req->dataptr = SvPVbyte_nolen (req->data);
823	req->fd = flags;	1011	req->fd = flags;
824	req->mode = mode;	1012	req->mode = mode;
825		1013
826	send_req (req);	1014	REQ_SEND;
827	}	1015	}
828		1016
829	void	1017	void
830	aio_close (fh,callback=&PL_sv_undef)	1018	aio_close (fh,callback=&PL_sv_undef)
831	SV * fh	1019	SV * fh
…		…
833	PROTOTYPE: $;$	1021	PROTOTYPE: $;$
834	ALIAS:	1022	ALIAS:
835	aio_close = REQ_CLOSE	1023	aio_close = REQ_CLOSE
836	aio_fsync = REQ_FSYNC	1024	aio_fsync = REQ_FSYNC
837	aio_fdatasync = REQ_FDATASYNC	1025	aio_fdatasync = REQ_FDATASYNC
838	CODE:	1026	PPCODE:
839	{	1027	{
840	dREQ;	1028	dREQ;
841		1029
842	req->type = ix;	1030	req->type = ix;
843	req->fh = newSVsv (fh);	1031	req->fh = newSVsv (fh);
844	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1032	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
845		1033
846	send_req (req);	1034	REQ_SEND (req);
847	}	1035	}
848		1036
849	void	1037	void
850	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1038	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
851	SV * fh	1039	SV * fh
…		…
856	SV * callback	1044	SV * callback
857	ALIAS:	1045	ALIAS:
858	aio_read = REQ_READ	1046	aio_read = REQ_READ
859	aio_write = REQ_WRITE	1047	aio_write = REQ_WRITE
860	PROTOTYPE: $$$$$;$	1048	PROTOTYPE: $$$$$;$
861	CODE:	1049	PPCODE:
862	{	1050	{
863	aio_req req;	1051	aio_req req;
864	STRLEN svlen;	1052	STRLEN svlen;
865	char *svptr = SvPVbyte (data, svlen);	1053	char *svptr = SvPVbyte (data, svlen);
866		1054
…		…
904	{	1092	{
905	SvREADONLY_on (data);	1093	SvREADONLY_on (data);
906	req->data2ptr = (void *)data;	1094	req->data2ptr = (void *)data;
907	}	1095	}
908		1096
909	send_req (req);	1097	REQ_SEND;
910	}	1098	}
911	}	1099	}
912		1100
913	void	1101	void
914	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1102	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
…		…
916	SV * in_fh	1104	SV * in_fh
917	UV in_offset	1105	UV in_offset
918	UV length	1106	UV length
919	SV * callback	1107	SV * callback
920	PROTOTYPE: $$$$;$	1108	PROTOTYPE: $$$$;$
921	CODE:	1109	PPCODE:
922	{	1110	{
923	dREQ;	1111	dREQ;
924		1112
925	req->type = REQ_SENDFILE;	1113	req->type = REQ_SENDFILE;
926	req->fh = newSVsv (out_fh);	1114	req->fh = newSVsv (out_fh);
…		…
928	req->fh2 = newSVsv (in_fh);	1116	req->fh2 = newSVsv (in_fh);
929	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1117	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
930	req->offset = in_offset;	1118	req->offset = in_offset;
931	req->length = length;	1119	req->length = length;
932		1120
933	send_req (req);	1121	REQ_SEND;
934	}	1122	}
935		1123
936	void	1124	void
937	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	1125	aio_readahead (fh,offset,length,callback=&PL_sv_undef)
938	SV * fh	1126	SV * fh
939	UV offset	1127	UV offset
940	IV length	1128	IV length
941	SV * callback	1129	SV * callback
942	PROTOTYPE: $$$;$	1130	PROTOTYPE: $$$;$
943	CODE:	1131	PPCODE:
944	{	1132	{
945	dREQ;	1133	dREQ;
946		1134
947	req->type = REQ_READAHEAD;	1135	req->type = REQ_READAHEAD;
948	req->fh = newSVsv (fh);	1136	req->fh = newSVsv (fh);
949	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1137	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
950	req->offset = offset;	1138	req->offset = offset;
951	req->length = length;	1139	req->length = length;
952		1140
953	send_req (req);	1141	REQ_SEND;
954	}	1142	}
955		1143
956	void	1144	void
957	aio_stat (fh_or_path,callback=&PL_sv_undef)	1145	aio_stat (fh_or_path,callback=&PL_sv_undef)
958	SV * fh_or_path	1146	SV * fh_or_path
959	SV * callback	1147	SV * callback
960	ALIAS:	1148	ALIAS:
961	aio_stat = REQ_STAT	1149	aio_stat = REQ_STAT
962	aio_lstat = REQ_LSTAT	1150	aio_lstat = REQ_LSTAT
963	CODE:	1151	PPCODE:
964	{	1152	{
965	dREQ;	1153	dREQ;
966		1154
967	New (0, req->statdata, 1, Stat_t);	1155	New (0, req->statdata, 1, Stat_t);
968	if (!req->statdata)	1156	if (!req->statdata)
969	{	1157	{
970	free_req (req);	1158	req_free (req);
971	croak ("out of memory during aio_req->statdata allocation");	1159	croak ("out of memory during aio_req->statdata allocation");
972	}	1160	}
973		1161
974	if (SvPOK (fh_or_path))	1162	if (SvPOK (fh_or_path))
975	{	1163	{
…		…
982	req->type = REQ_FSTAT;	1170	req->type = REQ_FSTAT;
983	req->fh = newSVsv (fh_or_path);	1171	req->fh = newSVsv (fh_or_path);
984	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1172	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
985	}	1173	}
986		1174
987	send_req (req);	1175	REQ_SEND;
988	}	1176	}
989		1177
990	void	1178	void
991	aio_unlink (pathname,callback=&PL_sv_undef)	1179	aio_unlink (pathname,callback=&PL_sv_undef)
992	SV * pathname	1180	SV * pathname
993	SV * callback	1181	SV * callback
994	ALIAS:	1182	ALIAS:
995	aio_unlink = REQ_UNLINK	1183	aio_unlink = REQ_UNLINK
996	aio_rmdir = REQ_RMDIR	1184	aio_rmdir = REQ_RMDIR
997	aio_readdir = REQ_READDIR	1185	aio_readdir = REQ_READDIR
998	CODE:	1186	PPCODE:
999	{	1187	{
1000	dREQ;	1188	dREQ;
1001		1189
1002	req->type = ix;	1190	req->type = ix;
1003	req->data = newSVsv (pathname);	1191	req->data = newSVsv (pathname);
1004	req->dataptr = SvPVbyte_nolen (req->data);	1192	req->dataptr = SvPVbyte_nolen (req->data);
1005		1193
1006	send_req (req);	1194	REQ_SEND;
1007	}	1195	}
1008		1196
1009	void	1197	void
1010	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1198	aio_link (oldpath,newpath,callback=&PL_sv_undef)
1011	SV * oldpath	1199	SV * oldpath
…		…
1013	SV * callback	1201	SV * callback
1014	ALIAS:	1202	ALIAS:
1015	aio_link = REQ_LINK	1203	aio_link = REQ_LINK
1016	aio_symlink = REQ_SYMLINK	1204	aio_symlink = REQ_SYMLINK
1017	aio_rename = REQ_RENAME	1205	aio_rename = REQ_RENAME
1018	CODE:	1206	PPCODE:
1019	{	1207	{
1020	dREQ;	1208	dREQ;
1021		1209
1022	req->type = ix;	1210	req->type = ix;
1023	req->fh = newSVsv (oldpath);	1211	req->fh = newSVsv (oldpath);
1024	req->data2ptr = SvPVbyte_nolen (req->fh);	1212	req->data2ptr = SvPVbyte_nolen (req->fh);
1025	req->data = newSVsv (newpath);	1213	req->data = newSVsv (newpath);
1026	req->dataptr = SvPVbyte_nolen (req->data);	1214	req->dataptr = SvPVbyte_nolen (req->data);
1027		1215
1028	send_req (req);	1216	REQ_SEND;
1029	}	1217	}
		1218
		1219	void
		1220	aio_sleep (delay,callback=&PL_sv_undef)
		1221	double delay
		1222	SV * callback
		1223	PPCODE:
		1224	{
		1225	dREQ;
		1226
		1227	req->type = REQ_SLEEP;
		1228	req->fd = delay < 0. ? 0 : delay;
		1229	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
		1230
		1231	REQ_SEND;
		1232	}
		1233
		1234	void
		1235	aio_group (callback=&PL_sv_undef)
		1236	SV * callback
		1237	PROTOTYPE: ;$
		1238	PPCODE:
		1239	{
		1240	dREQ;
		1241
		1242	req->type = REQ_GROUP;
		1243	req_send (req);
		1244
		1245	XPUSHs (req_sv (req, AIO_GRP_KLASS));
		1246	}
		1247
		1248	void
		1249	aio_nop (callback=&PL_sv_undef)
		1250	SV * callback
		1251	PPCODE:
		1252	{
		1253	dREQ;
		1254
		1255	req->type = REQ_NOP;
		1256
		1257	REQ_SEND;
		1258	}
		1259
		1260	#if 0
		1261
		1262	void
		1263	aio_pri (int pri = DEFAULT_PRI)
		1264	CODE:
		1265	if (pri > PRI_MIN) pri = PRI_MIN;
		1266	if (pri < PRI_MAX) pri = PRI_MAX;
		1267	next_pri = pri + PRI_BIAS;
		1268
		1269	#endif
1030		1270
1031	void	1271	void
1032	flush ()	1272	flush ()
1033	PROTOTYPE:	1273	PROTOTYPE:
1034	CODE:	1274	CODE:
…		…
1077	CODE:	1317	CODE:
1078	RETVAL = nreqs;	1318	RETVAL = nreqs;
1079	OUTPUT:	1319	OUTPUT:
1080	RETVAL	1320	RETVAL
1081		1321
		1322	PROTOTYPES: DISABLE
		1323
		1324	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
		1325
		1326	void
		1327	cancel (aio_req_ornot req)
		1328	PROTOTYPE:
		1329	CODE:
		1330	req_cancel (req);
		1331
		1332	void
		1333	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1334	CODE:
		1335	SvREFCNT_dec (req->callback);
		1336	req->callback = newSVsv (callback);
		1337
		1338	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
		1339
		1340	void
		1341	add (aio_req grp, ...)
		1342	PPCODE:
		1343	{
		1344	int i;
		1345	aio_req req;
		1346
		1347	if (grp->fd == 2)
		1348	croak ("cannot add requests to IO::AIO::GRP after the group finished");
		1349
		1350	for (i = 1; i < items; ++i )
		1351	{
		1352	if (GIMME_V != G_VOID)
		1353	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1354
		1355	req = SvAIO_REQ (ST (i));
		1356
		1357	if (req)
		1358	{
		1359	++grp->length;
		1360	req->grp = grp;
		1361
		1362	req->grp_prev = 0;
		1363	req->grp_next = grp->grp_first;
		1364
		1365	if (grp->grp_first)
		1366	grp->grp_first->grp_prev = req;
		1367
		1368	grp->grp_first = req;
		1369	}
		1370	}
		1371	}
		1372
		1373	void
		1374	result (aio_req grp, ...)
		1375	CODE:
		1376	{
		1377	int i;
		1378	AV *av = newAV ();
		1379
		1380	for (i = 1; i < items; ++i )
		1381	av_push (av, newSVsv (ST (i)));
		1382
		1383	SvREFCNT_dec (grp->data);
		1384	grp->data = (SV *)av;
		1385	}
		1386
		1387	void
		1388	feed_limit (aio_req grp, int limit)
		1389	CODE:
		1390	grp->fd2 = limit;
		1391	aio_grp_feed (grp);
		1392
		1393	void
		1394	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1395	CODE:
		1396	{
		1397	SvREFCNT_dec (grp->fh2);
		1398	grp->fh2 = newSVsv (callback);
		1399
		1400	if (grp->fd2 <= 0)
		1401	grp->fd2 = 2;
		1402
		1403	aio_grp_feed (grp);
		1404	}
		1405

Diff Legend

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

Comparing IO-AIO/AIO.xs (file contents): Revision 1.40 by root, Sat Jun 24 16:27:02 2006 UTC vs. Revision 1.60 by root, Mon Oct 23 20:05:27 2006 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.40 by root, Sat Jun 24 16:27:02 2006 UTC vs.
Revision 1.60 by root, Mon Oct 23 20:05:27 2006 UTC