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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.53 by root, Mon Oct 23 00:17:07 2006 UTC vs.
Revision 1.69 by root, Tue Oct 24 11:57:30 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"
41	# define NAME_MAX 4096	46	# define NAME_MAX 4096
42	#endif	47	#endif
43		48
44	#if __ia64	49	#if __ia64
45	# define STACKSIZE 65536	50	# define STACKSIZE 65536
		51	#elif __i386 \|\| __x86_64 /* 16k is unreasonably high :( */
		52	# define STACKSIZE PTHREAD_STACK_MIN
46	#else	53	#else
47	# define STACKSIZE 8192	54	# define STACKSIZE 16384
48	#endif	55	#endif
		56
		57	/* buffer size for various temporary buffers */
		58	#define AIO_BUFSIZE 65536
		59
		60	#define dBUF \
		61	char *aio_buf = malloc (AIO_BUFSIZE); \
		62	if (!aio_buf) \
		63	return -1;
		64
		65	#define fBUF free (aio_buf)
49		66
50	enum {	67	enum {
51	REQ_QUIT,	68	REQ_QUIT,
52	REQ_OPEN, REQ_CLOSE,	69	REQ_OPEN, REQ_CLOSE,
53	REQ_READ, REQ_WRITE, REQ_READAHEAD,	70	REQ_READ, REQ_WRITE, REQ_READAHEAD,
…		…
55	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	72	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
56	REQ_FSYNC, REQ_FDATASYNC,	73	REQ_FSYNC, REQ_FDATASYNC,
57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	74	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
58	REQ_READDIR,	75	REQ_READDIR,
59	REQ_LINK, REQ_SYMLINK,	76	REQ_LINK, REQ_SYMLINK,
60	REQ_SLEEP,	77	REQ_GROUP, REQ_NOP,
61	REQ_GROUP,	78	REQ_BUSY,
62	};	79	};
63		80
64	#define AIO_REQ_KLASS "IO::AIO::REQ"	81	#define AIO_REQ_KLASS "IO::AIO::REQ"
65	#define AIO_GRP_KLASS "IO::AIO::GRP"	82	#define AIO_GRP_KLASS "IO::AIO::GRP"
66		83
67	typedef struct aio_cb	84	typedef struct aio_cb
68	{	85	{
69	struct aio_cb *volatile next;	86	struct aio_cb *volatile next;
70
71	struct aio_cb grp, grp_prev, grp_next, grp_first;
72
73	SV self; / the perl counterpart of this request, if any */
74		87
75	SV data, callback;	88	SV data, callback;
76	SV fh, fh2;	89	SV fh, fh2;
77	void dataptr, data2ptr;	90	void dataptr, data2ptr;
78	Stat_t *statdata;	91	Stat_t *statdata;
79	off_t offset;	92	off_t offset;
80	size_t length;	93	size_t length;
81	ssize_t result;	94	ssize_t result;
82		95
		96	STRLEN dataoffset;
83	int type;	97	int type;
84	int fd, fd2;	98	int fd, fd2;
85	int errorno;	99	int errorno;
86	STRLEN dataoffset;
87	mode_t mode; /* open */	100	mode_t mode; /* open */
		101
88	unsigned char cancelled;	102	unsigned char flags;
		103	unsigned char pri;
		104
		105	SV self; / the perl counterpart of this request, if any */
		106	struct aio_cb grp, grp_prev, grp_next, grp_first;
89	} aio_cb;	107	} aio_cb;
		108
		109	enum {
		110	FLAG_CANCELLED = 0x01,
		111	};
90		112
91	typedef aio_cb *aio_req;	113	typedef aio_cb *aio_req;
92	typedef aio_cb *aio_req_ornot;	114	typedef aio_cb *aio_req_ornot;
		115
		116	enum {
		117	PRI_MIN = -4,
		118	PRI_MAX = 4,
		119
		120	DEFAULT_PRI = 0,
		121	PRI_BIAS = -PRI_MIN,
		122	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
		123	};
		124
		125	static int next_pri = DEFAULT_PRI + PRI_BIAS;
93		126
94	static int started, wanted;	127	static int started, wanted;
95	static volatile int nreqs;	128	static volatile int nreqs;
96	static int max_outstanding = 1<<30;	129	static int max_outstanding = 1<<30;
97	static int respipe [2];	130	static int respipe [2];
98		131
		132	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
		133	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
		134	#else
		135	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
		136	#endif
		137
99	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	138	static pthread_mutex_t reslock = AIO_MUTEX_INIT;
100	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	139	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
101	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	140	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
102		141
103	static volatile aio_req reqs, reqe; /* queue start, queue end */	142	/*
104	static volatile aio_req ress, rese; /* queue start, queue end */	143	* a somewhat faster data structure might be nice, but
		144	* with 8 priorities this actually needs <20 insns
		145	* per shift, the most expensive operation.
		146	*/
		147	typedef struct {
		148	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
		149	int size;
		150	} reqq;
		151
		152	static reqq req_queue;
		153	static reqq res_queue;
		154
		155	int reqq_push (reqq *q, aio_req req)
		156	{
		157	int pri = req->pri;
		158	req->next = 0;
		159
		160	if (q->qe[pri])
		161	{
		162	q->qe[pri]->next = req;
		163	q->qe[pri] = req;
		164	}
		165	else
		166	q->qe[pri] = q->qs[pri] = req;
		167
		168	return q->size++;
		169	}
		170
		171	aio_req reqq_shift (reqq *q)
		172	{
		173	int pri;
		174
		175	if (!q->size)
		176	return 0;
		177
		178	--q->size;
		179
		180	for (pri = NUM_PRI; pri--; )
		181	{
		182	aio_req req = q->qs[pri];
		183
		184	if (req)
		185	{
		186	if (!(q->qs[pri] = req->next))
		187	q->qe[pri] = 0;
		188
		189	return req;
		190	}
		191	}
		192
		193	abort ();
		194	}
105		195
106	static void req_invoke (aio_req req);	196	static void req_invoke (aio_req req);
107	static void req_free (aio_req req);	197	static void req_free (aio_req req);
108		198
109	/* must be called at most once */	199	/* must be called at most once */
…		…
130	return mg ? (aio_req)mg->mg_ptr : 0;	220	return mg ? (aio_req)mg->mg_ptr : 0;
131	}	221	}
132		222
133	static void aio_grp_feed (aio_req grp)	223	static void aio_grp_feed (aio_req grp)
134	{	224	{
135	while (grp->length < grp->fd2)	225	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
136	{	226	{
137	int old_len = grp->length;	227	int old_len = grp->length;
138		228
139	if (grp->fh2 && SvOK (grp->fh2))	229	if (grp->fh2 && SvOK (grp->fh2))
140	{	230	{
…		…
143	ENTER;	233	ENTER;
144	SAVETMPS;	234	SAVETMPS;
145	PUSHMARK (SP);	235	PUSHMARK (SP);
146	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	236	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
147	PUTBACK;	237	PUTBACK;
148	call_sv (grp->fh2, G_VOID \| G_EVAL);	238	call_sv (grp->fh2, G_VOID \| G_EVAL \| G_KEEPERR);
149	SPAGAIN;	239	SPAGAIN;
150	FREETMPS;	240	FREETMPS;
151	LEAVE;	241	LEAVE;
152	}	242	}
153		243
…		…
176	}	266	}
177	}	267	}
178		268
179	static void poll_wait ()	269	static void poll_wait ()
180	{	270	{
181	if (nreqs && !ress)
182	{
183	fd_set rfd;	271	fd_set rfd;
		272
		273	while (nreqs)
		274	{
		275	int size;
		276	#if !(__i386 \|\| __x86_64) /* safe without sempahore on this archs */
		277	pthread_mutex_lock (&reslock);
		278	#endif
		279	size = res_queue.size;
		280	#if !(__i386 \|\| __x86_64) /* safe without sempahore on this archs */
		281	pthread_mutex_unlock (&reslock);
		282	#endif
		283
		284	if (size)
		285	return;
		286
184	FD_ZERO(&rfd);	287	FD_ZERO(&rfd);
185	FD_SET(respipe [0], &rfd);	288	FD_SET(respipe [0], &rfd);
186		289
187	select (respipe [0] + 1, &rfd, 0, 0, 0);	290	select (respipe [0] + 1, &rfd, 0, 0, 0);
188	}	291	}
189	}	292	}
190		293
191	static void req_invoke (aio_req req)	294	static void req_invoke (aio_req req)
192	{	295	{
193	dSP;	296	dSP;
194	int errorno = errno;
195		297
196	if (req->cancelled \|\| !SvOK (req->callback))	298	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
197	return;	299	{
198
199	errno = req->errorno;	300	errno = req->errorno;
200		301
201	ENTER;	302	ENTER;
202	SAVETMPS;	303	SAVETMPS;
203	PUSHMARK (SP);	304	PUSHMARK (SP);
204	EXTEND (SP, 1);	305	EXTEND (SP, 1);
205		306
206	switch (req->type)	307	switch (req->type)
207	{
208	case REQ_READDIR:
209	{	308	{
210	SV *rv = &PL_sv_undef;	309	case REQ_READDIR:
211
212	if (req->result >= 0)
213	{	310	{
214	char *buf = req->data2ptr;	311	SV *rv = &PL_sv_undef;
215	AV *av = newAV ();
216		312
217	while (req->result)	313	if (req->result >= 0)
218	{	314	{
		315	char *buf = req->data2ptr;
		316	AV *av = newAV ();
		317
		318	while (req->result)
		319	{
219	SV *sv = newSVpv (buf, 0);	320	SV *sv = newSVpv (buf, 0);
220		321
221	av_push (av, sv);	322	av_push (av, sv);
222	buf += SvCUR (sv) + 1;	323	buf += SvCUR (sv) + 1;
223	req->result--;	324	req->result--;
		325	}
		326
		327	rv = sv_2mortal (newRV_noinc ((SV *)av));
224	}	328	}
225		329
226	rv = sv_2mortal (newRV_noinc ((SV *)av));	330	PUSHs (rv);
227	}	331	}
		332	break;
228		333
229	PUSHs (rv);	334	case REQ_OPEN:
		335	{
		336	/* convert fd to fh */
		337	SV *fh;
		338
		339	PUSHs (sv_2mortal (newSViv (req->result)));
		340	PUTBACK;
		341	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		342	SPAGAIN;
		343
		344	fh = SvREFCNT_inc (POPs);
		345
		346	PUSHMARK (SP);
		347	XPUSHs (sv_2mortal (fh));
		348	}
		349	break;
		350
		351	case REQ_GROUP:
		352	req->fd = 2; /* mark group as finished */
		353
		354	if (req->data)
		355	{
		356	int i;
		357	AV av = (AV )req->data;
		358
		359	EXTEND (SP, AvFILL (av) + 1);
		360	for (i = 0; i <= AvFILL (av); ++i)
		361	PUSHs (*av_fetch (av, i, 0));
		362	}
		363	break;
		364
		365	case REQ_NOP:
		366	case REQ_BUSY:
		367	break;
		368
		369	default:
		370	PUSHs (sv_2mortal (newSViv (req->result)));
		371	break;
230	}	372	}
231	break;
232		373
233	case REQ_OPEN:
234	{
235	/* convert fd to fh */
236	SV *fh;
237		374
238	PUSHs (sv_2mortal (newSViv (req->result)));
239	PUTBACK;	375	PUTBACK;
240	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
241	SPAGAIN;
242
243	fh = SvREFCNT_inc (POPs);
244
245	PUSHMARK (SP);
246	XPUSHs (sv_2mortal (fh));
247	}
248	break;
249
250	case REQ_GROUP:
251	req->fd = 2; /* mark group as finished */
252
253	if (req->data)
254	{
255	int i;
256	AV av = (AV )req->data;
257
258	EXTEND (SP, AvFILL (av) + 1);
259	for (i = 0; i <= AvFILL (av); ++i)
260	PUSHs (*av_fetch (av, i, 0));
261	}
262	break;
263
264	case REQ_SLEEP:
265	break;
266
267	default:
268	PUSHs (sv_2mortal (newSViv (req->result)));
269	break;
270	}
271
272
273	PUTBACK;
274	call_sv (req->callback, G_VOID \| G_EVAL);	376	call_sv (req->callback, G_VOID \| G_EVAL);
275	SPAGAIN;	377	SPAGAIN;
276		378
277	FREETMPS;	379	FREETMPS;
278	LEAVE;	380	LEAVE;
279
280	errno = errorno;
281
282	if (SvTRUE (ERRSV))
283	{	381	}
284	req_free (req);
285	croak (0);
286	}
287	}
288		382
289	static void req_free (aio_req req)
290	{
291	if (req->grp)	383	if (req->grp)
292	{	384	{
293	aio_req grp = req->grp;	385	aio_req grp = req->grp;
294		386
295	/* unlink request */	387	/* unlink request */
…		…
300	grp->grp_first = req->grp_next;	392	grp->grp_first = req->grp_next;
301		393
302	aio_grp_dec (grp);	394	aio_grp_dec (grp);
303	}	395	}
304		396
		397	if (SvTRUE (ERRSV))
		398	{
		399	req_free (req);
		400	croak (0);
		401	}
		402	}
		403
		404	static void req_free (aio_req req)
		405	{
305	if (req->self)	406	if (req->self)
306	{	407	{
307	sv_unmagic (req->self, PERL_MAGIC_ext);	408	sv_unmagic (req->self, PERL_MAGIC_ext);
308	SvREFCNT_dec (req->self);	409	SvREFCNT_dec (req->self);
309	}	410	}
…		…
320	Safefree (req);	421	Safefree (req);
321	}	422	}
322		423
323	static void req_cancel (aio_req req)	424	static void req_cancel (aio_req req)
324	{	425	{
325	req->cancelled = 1;	426	req->flags \|= FLAG_CANCELLED;
326		427
327	if (req->type == REQ_GROUP)	428	if (req->type == REQ_GROUP)
328	{	429	{
329	aio_req sub;	430	aio_req sub;
330		431
…		…
341	aio_req req;	442	aio_req req;
342		443
343	for (;;)	444	for (;;)
344	{	445	{
345	pthread_mutex_lock (&reslock);	446	pthread_mutex_lock (&reslock);
346	req = ress;	447	req = reqq_shift (&res_queue);
347		448
348	if (req)	449	if (req)
349	{	450	{
350	ress = req->next;
351
352	if (!ress)	451	if (!res_queue.size)
353	{	452	{
354	/* read any signals sent by the worker threads */	453	/* read any signals sent by the worker threads */
355	char buf [32];	454	char buf [32];
356	while (read (respipe [0], buf, 32) == 32)	455	while (read (respipe [0], buf, 32) == 32)
357	;	456	;
358
359	rese = 0;
360	}	457	}
361	}	458	}
362		459
363	pthread_mutex_unlock (&reslock);	460	pthread_mutex_unlock (&reslock);
364		461
…		…
427	start_thread ();	524	start_thread ();
428		525
429	++nreqs;	526	++nreqs;
430		527
431	pthread_mutex_lock (&reqlock);	528	pthread_mutex_lock (&reqlock);
432		529	reqq_push (&req_queue, req);
433	req->next = 0;
434
435	if (reqe)
436	{
437	reqe->next = req;
438	reqe = req;
439	}
440	else
441	reqe = reqs = req;
442
443	pthread_cond_signal (&reqwait);	530	pthread_cond_signal (&reqwait);
444	pthread_mutex_unlock (&reqlock);	531	pthread_mutex_unlock (&reqlock);
445		532
446	if (nreqs > max_outstanding)	533	if (nreqs > max_outstanding)
447	for (;;)	534	for (;;)
…		…
456	}	543	}
457		544
458	static void end_thread (void)	545	static void end_thread (void)
459	{	546	{
460	aio_req req;	547	aio_req req;
		548
461	Newz (0, req, 1, aio_cb);	549	Newz (0, req, 1, aio_cb);
		550
462	req->type = REQ_QUIT;	551	req->type = REQ_QUIT;
		552	req->pri = PRI_MAX + PRI_BIAS;
463		553
464	req_send (req);	554	req_send (req);
465	}	555	}
466		556
467	static void min_parallel (int nthreads)	557	static void min_parallel (int nthreads)
…		…
554	#if !HAVE_READAHEAD	644	#if !HAVE_READAHEAD
555	# define readahead aio_readahead	645	# define readahead aio_readahead
556		646
557	static ssize_t readahead (int fd, off_t offset, size_t count)	647	static ssize_t readahead (int fd, off_t offset, size_t count)
558	{	648	{
559	char readahead_buf[4096];	649	dBUF;
560		650
561	while (count > 0)	651	while (count > 0)
562	{	652	{
563	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);	653	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
564		654
565	pread (fd, readahead_buf, len, offset);	655	pread (fd, aio_buf, len, offset);
566	offset += len;	656	offset += len;
567	count -= len;	657	count -= len;
568	}	658	}
		659
		660	fBUF;
569		661
570	errno = 0;	662	errno = 0;
571	}	663	}
572	#endif	664	#endif
573		665
…		…
659	#endif	751	#endif
660	)	752	)
661	)	753	)
662	{	754	{
663	/* emulate sendfile. this is a major pain in the ass */	755	/* emulate sendfile. this is a major pain in the ass */
664	char buf[4096];	756	dBUF;
		757
665	res = 0;	758	res = 0;
666		759
667	while (count)	760	while (count)
668	{	761	{
669	ssize_t cnt;	762	ssize_t cnt;
670		763
671	cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);	764	cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
672		765
673	if (cnt <= 0)	766	if (cnt <= 0)
674	{	767	{
675	if (cnt && !res) res = -1;	768	if (cnt && !res) res = -1;
676	break;	769	break;
677	}	770	}
678		771
679	cnt = write (ofd, buf, cnt);	772	cnt = write (ofd, aio_buf, cnt);
680		773
681	if (cnt <= 0)	774	if (cnt <= 0)
682	{	775	{
683	if (cnt && !res) res = -1;	776	if (cnt && !res) res = -1;
684	break;	777	break;
…		…
686		779
687	offset += cnt;	780	offset += cnt;
688	res += cnt;	781	res += cnt;
689	count -= cnt;	782	count -= cnt;
690	}	783	}
		784
		785	fBUF;
691	}	786	}
692		787
693	return res;	788	return res;
694	}	789	}
695		790
696	/* read a full directory */	791	/* read a full directory */
697	static int scandir_ (const char path, void *namesp)	792	static int scandir_ (const char path, void *namesp)
698	{	793	{
699	DIR *dirp = opendir (path);	794	DIR *dirp;
700	union	795	union
701	{	796	{
702	struct dirent d;	797	struct dirent d;
703	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	798	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
704	} u;	799	} *u;
705	struct dirent *entp;	800	struct dirent *entp;
706	char name, names;	801	char name, names;
707	int memlen = 4096;	802	int memlen = 4096;
708	int memofs = 0;	803	int memofs = 0;
709	int res = 0;	804	int res = 0;
710	int errorno;	805	int errorno;
711		806
		807	dirp = opendir (path);
712	if (!dirp)	808	if (!dirp)
713	return -1;	809	return -1;
714		810
		811	u = malloc (sizeof (*u));
715	names = malloc (memlen);	812	names = malloc (memlen);
716		813
		814	if (u && names)
717	for (;;)	815	for (;;)
718	{	816	{
		817	errno = 0;
719	errno = 0, readdir_r (dirp, &u.d, &entp);	818	readdir_r (dirp, &u->d, &entp);
720		819
721	if (!entp)	820	if (!entp)
722	break;	821	break;
723		822
724	name = entp->d_name;	823	name = entp->d_name;
725		824
726	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))	825	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))
727	{	826	{
728	int len = strlen (name) + 1;	827	int len = strlen (name) + 1;
729		828
730	res++;	829	res++;
731		830
732	while (memofs + len > memlen)	831	while (memofs + len > memlen)
733	{	832	{
734	memlen *= 2;	833	memlen *= 2;
735	names = realloc (names, memlen);	834	names = realloc (names, memlen);
736	if (!names)	835	if (!names)
737	break;	836	break;
738	}	837	}
739		838
740	memcpy (names + memofs, name, len);	839	memcpy (names + memofs, name, len);
741	memofs += len;	840	memofs += len;
742	}	841	}
743	}	842	}
744		843
745	errorno = errno;	844	errorno = errno;
		845	free (u);
746	closedir (dirp);	846	closedir (dirp);
747		847
748	if (errorno)	848	if (errorno)
749	{	849	{
750	free (names);	850	free (names);
…		…
767	{	867	{
768	pthread_mutex_lock (&reqlock);	868	pthread_mutex_lock (&reqlock);
769		869
770	for (;;)	870	for (;;)
771	{	871	{
772	req = reqs;	872	req = reqq_shift (&req_queue);
773
774	if (reqs)
775	{
776	reqs = reqs->next;
777	if (!reqs) reqe = 0;
778	}
779		873
780	if (req)	874	if (req)
781	break;	875	break;
782		876
783	pthread_cond_wait (&reqwait, &reqlock);	877	pthread_cond_wait (&reqwait, &reqlock);
784	}	878	}
785		879
786	pthread_mutex_unlock (&reqlock);	880	pthread_mutex_unlock (&reqlock);
787		881
788	errno = 0; /* strictly unnecessary */	882	errno = 0; /* strictly unnecessary */
789
790	if (!req->cancelled)
791	switch (type = req->type) /* remember type for QUIT check */	883	type = req->type; /* remember type for QUIT check */
		884
		885	if (!(req->flags & FLAG_CANCELLED))
		886	switch (type)
792	{	887	{
793	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	888	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
794	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	889	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
795		890
796	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	891	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
…		…
810		905
811	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	906	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
812	case REQ_FSYNC: req->result = fsync (req->fd); break;	907	case REQ_FSYNC: req->result = fsync (req->fd); break;
813	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	908	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
814		909
815	case REQ_SLEEP:	910	case REQ_BUSY:
816	{	911	{
817	struct timeval tv;	912	struct timeval tv;
818		913
819	tv.tv_sec = req->fd;	914	tv.tv_sec = req->fd;
820	tv.tv_usec = req->fd2;	915	tv.tv_usec = req->fd2;
821		916
822	req->result = select (0, 0, 0, 0, &tv);	917	req->result = select (0, 0, 0, 0, &tv);
823	}	918	}
824		919
		920	case REQ_GROUP:
		921	case REQ_NOP:
825	case REQ_QUIT:	922	case REQ_QUIT:
826	break;	923	break;
827		924
828	default:	925	default:
829	req->result = ENOSYS;	926	req->result = ENOSYS;
…		…
832		929
833	req->errorno = errno;	930	req->errorno = errno;
834		931
835	pthread_mutex_lock (&reslock);	932	pthread_mutex_lock (&reslock);
836		933
837	req->next = 0;	934	if (!reqq_push (&res_queue, req))
838
839	if (rese)
840	{
841	rese->next = req;
842	rese = req;
843	}
844	else
845	{
846	rese = ress = req;
847
848	/* write a dummy byte to the pipe so fh becomes ready */	935	/* write a dummy byte to the pipe so fh becomes ready */
849	write (respipe [1], &respipe, 1);	936	write (respipe [1], &respipe, 1);
850	}
851		937
852	pthread_mutex_unlock (&reslock);	938	pthread_mutex_unlock (&reslock);
853	}	939	}
854	while (type != REQ_QUIT);	940	while (type != REQ_QUIT);
855		941
…		…
886	{	972	{
887	aio_req prv;	973	aio_req prv;
888		974
889	started = 0;	975	started = 0;
890		976
891	while (reqs)	977	while (prv = reqq_shift (&req_queue))
892	{
893	prv = reqs;
894	reqs = prv->next;
895	req_free (prv);	978	req_free (prv);
896	}
897		979
898	reqs = reqe = 0;	980	while (prv = reqq_shift (&res_queue))
899
900	while (ress)
901	{
902	prv = ress;
903	ress = prv->next;
904	req_free (prv);	981	req_free (prv);
905	}	982
906
907	ress = rese = 0;
908
909	close (respipe [0]);	983	close (respipe [0]);
910	close (respipe [1]);	984	close (respipe [1]);
911	create_pipe ();	985	create_pipe ();
912		986
913	atfork_parent ();	987	atfork_parent ();
914	}	988	}
915		989
916	#define dREQ \	990	#define dREQ \
917	aio_req req; \	991	aio_req req; \
		992	int req_pri = next_pri; \
		993	next_pri = DEFAULT_PRI + PRI_BIAS; \
918	\	994	\
919	if (SvOK (callback) && !SvROK (callback)) \	995	if (SvOK (callback) && !SvROK (callback)) \
920	croak ("callback must be undef or of reference type"); \	996	croak ("callback must be undef or of reference type"); \
921	\	997	\
922	Newz (0, req, 1, aio_cb); \	998	Newz (0, req, 1, aio_cb); \
923	if (!req) \	999	if (!req) \
924	croak ("out of memory during aio_req allocation"); \	1000	croak ("out of memory during aio_req allocation"); \
925	\	1001	\
926	req->callback = newSVsv (callback)	1002	req->callback = newSVsv (callback); \
		1003	req->pri = req_pri
927		1004
928	#define REQ_SEND \	1005	#define REQ_SEND \
929	req_send (req); \	1006	req_send (req); \
930	\	1007	\
931	if (GIMME_V != G_VOID) \	1008	if (GIMME_V != G_VOID) \
…		…
1185		1262
1186	REQ_SEND;	1263	REQ_SEND;
1187	}	1264	}
1188		1265
1189	void	1266	void
1190	aio_sleep (delay,callback=&PL_sv_undef)	1267	aio_busy (delay,callback=&PL_sv_undef)
1191	double delay	1268	double delay
1192	SV * callback	1269	SV * callback
1193	PPCODE:	1270	PPCODE:
1194	{	1271	{
1195	dREQ;	1272	dREQ;
1196		1273
1197	req->type = REQ_SLEEP;	1274	req->type = REQ_BUSY;
1198	req->fd = delay < 0. ? 0 : delay;	1275	req->fd = delay < 0. ? 0 : delay;
1199	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);	1276	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1200		1277
1201	REQ_SEND;	1278	REQ_SEND;
1202	}	1279	}
…		…
1206	SV * callback	1283	SV * callback
1207	PROTOTYPE: ;$	1284	PROTOTYPE: ;$
1208	PPCODE:	1285	PPCODE:
1209	{	1286	{
1210	dREQ;	1287	dREQ;
		1288
1211	req->type = REQ_GROUP;	1289	req->type = REQ_GROUP;
1212	req_send (req);	1290	req_send (req);
		1291
1213	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1292	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1214	}	1293	}
		1294
		1295	void
		1296	aio_nop (callback=&PL_sv_undef)
		1297	SV * callback
		1298	PPCODE:
		1299	{
		1300	dREQ;
		1301
		1302	req->type = REQ_NOP;
		1303
		1304	REQ_SEND;
		1305	}
		1306
		1307	void
		1308	aioreq_pri (int pri = DEFAULT_PRI)
		1309	CODE:
		1310	if (pri < PRI_MIN) pri = PRI_MIN;
		1311	if (pri > PRI_MAX) pri = PRI_MAX;
		1312	next_pri = pri + PRI_BIAS;
		1313
		1314	void
		1315	aioreq_nice (int nice = 0)
		1316	CODE:
		1317	nice = next_pri - nice;
		1318	if (nice < PRI_MIN) nice = PRI_MIN;
		1319	if (nice > PRI_MAX) nice = PRI_MAX;
		1320	next_pri = nice + PRI_BIAS;
1215		1321
1216	void	1322	void
1217	flush ()	1323	flush ()
1218	PROTOTYPE:	1324	PROTOTYPE:
1219	CODE:	1325	CODE:
…		…
1268		1374
1269	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1375	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1270		1376
1271	void	1377	void
1272	cancel (aio_req_ornot req)	1378	cancel (aio_req_ornot req)
1273	PROTOTYPE:
1274	CODE:	1379	CODE:
1275	req_cancel (req);	1380	req_cancel (req);
		1381
		1382	void
		1383	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1384	CODE:
		1385	SvREFCNT_dec (req->callback);
		1386	req->callback = newSVsv (callback);
1276		1387
1277	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1388	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1278		1389
1279	void	1390	void
1280	add (aio_req grp, ...)	1391	add (aio_req grp, ...)
…		…
1322	SvREFCNT_dec (grp->data);	1433	SvREFCNT_dec (grp->data);
1323	grp->data = (SV *)av;	1434	grp->data = (SV *)av;
1324	}	1435	}
1325		1436
1326	void	1437	void
1327	lock (aio_req grp)
1328	CODE:
1329	++grp->length;
1330
1331	void
1332	unlock (aio_req grp)
1333	CODE:
1334	aio_grp_dec (grp);
1335
1336	void
1337	feeder_limit (aio_req grp, int limit)	1438	limit (aio_req grp, int limit)
1338	CODE:	1439	CODE:
1339	grp->fd2 = limit;	1440	grp->fd2 = limit;
1340	aio_grp_feed (grp);	1441	aio_grp_feed (grp);
1341		1442
1342	void	1443	void
1343	set_feeder (aio_req grp, SV *callback=&PL_sv_undef)	1444	feed (aio_req grp, SV *callback=&PL_sv_undef)
1344	CODE:	1445	CODE:
1345	{	1446	{
1346	SvREFCNT_dec (grp->fh2);	1447	SvREFCNT_dec (grp->fh2);
1347	grp->fh2 = newSVsv (callback);	1448	grp->fh2 = newSVsv (callback);
1348		1449

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.53 by root, Mon Oct 23 00:17:07 2006 UTC vs. Revision 1.69 by root, Tue Oct 24 11:57:30 2006 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.53 by root, Mon Oct 23 00:17:07 2006 UTC vs.
Revision 1.69 by root, Tue Oct 24 11:57:30 2006 UTC