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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.37 by root, Tue Aug 23 12:37:19 2005 UTC vs.
Revision 1.60 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>
…		…
31	# else	34	# else
32	# error sendfile support requested but not available	35	# error sendfile support requested but not available
33	# endif	36	# endif
34	#endif	37	#endif
35		38
		39	/* used for struct dirent, AIX doesn't provide it */
		40	#ifndef NAME_MAX
		41	# define NAME_MAX 4096
		42	#endif
		43
36	#if __ia64	44	#if __ia64
37	# define STACKSIZE 65536	45	# define STACKSIZE 65536
38	#else	46	#else
39	# define STACKSIZE 8192	47	# define STACKSIZE 8192
40	#endif	48	#endif
…		…
44	REQ_OPEN, REQ_CLOSE,	52	REQ_OPEN, REQ_CLOSE,
45	REQ_READ, REQ_WRITE, REQ_READAHEAD,	53	REQ_READ, REQ_WRITE, REQ_READAHEAD,
46	REQ_SENDFILE,	54	REQ_SENDFILE,
47	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	55	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
48	REQ_FSYNC, REQ_FDATASYNC,	56	REQ_FSYNC, REQ_FDATASYNC,
49	REQ_UNLINK, REQ_RMDIR,	57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
50	REQ_READDIR,	58	REQ_READDIR,
51	REQ_SYMLINK,	59	REQ_LINK, REQ_SYMLINK,
		60	REQ_GROUP, REQ_NOP,
		61	REQ_SLEEP,
52	};	62	};
53		63
		64	#define AIO_REQ_KLASS "IO::AIO::REQ"
		65	#define AIO_GRP_KLASS "IO::AIO::GRP"
		66
54	typedef struct aio_cb {	67	typedef struct aio_cb
		68	{
55	struct aio_cb *volatile next;	69	struct aio_cb *volatile next;
56		70
57	int type;	71	SV data, callback;
58		72	SV fh, fh2;
59	/* should receive a cleanup, with unions */	73	void dataptr, data2ptr;
60	int fd, fd2;	74	Stat_t *statdata;
61	off_t offset;	75	off_t offset;
62	size_t length;	76	size_t length;
63	ssize_t result;	77	ssize_t result;
		78
		79	STRLEN dataoffset;
		80	int type;
		81	int fd, fd2;
		82	int errorno;
64	mode_t mode; /* open */	83	mode_t mode; /* open */
65	int errorno;
66	SV data, callback;
67	SV fh, fh2;
68	void dataptr, data2ptr;
69	STRLEN dataoffset;
70		84
71	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;
72	} aio_cb;	90	} aio_cb;
73		91
		92	enum {
		93	FLAG_CANCELLED = 0x01,
		94	};
		95
74	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;
75		108
76	static int started, wanted;	109	static int started, wanted;
77	static volatile int nreqs;	110	static volatile int nreqs;
78	static int max_outstanding = 1<<30;	111	static int max_outstanding = 1<<30;
79	static int respipe [2];	112	static int respipe [2];
…		…
83	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	116	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
84		117
85	static volatile aio_req reqs, reqe; /* queue start, queue end */	118	static volatile aio_req reqs, reqe; /* queue start, queue end */
86	static volatile aio_req ress, rese; /* queue start, queue end */	119	static volatile aio_req ress, rese; /* queue start, queue end */
87		120
		121	static void req_invoke (aio_req req);
88	static void free_req (aio_req req)	122	static void req_free (aio_req req);
89	{
90	if (req->data)
91	SvREFCNT_dec (req->data);
92		123
		124	/* must be called at most once */
		125	static SV req_sv (aio_req req, const char klass)
		126	{
93	if (req->fh)	127	if (!req->self)
94	SvREFCNT_dec (req->fh);	128	{
		129	req->self = (SV *)newHV ();
		130	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		131	}
95		132
96	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	{
97	SvREFCNT_dec (req->fh2);	172	SvREFCNT_dec (grp->fh2);
98		173	grp->fh2 = 0;
99	if (req->statdata)	174	break;
100	Safefree (req->statdata);	175	}
101
102	if (req->callback)
103	SvREFCNT_dec (req->callback);
104
105	if (req->type == REQ_READDIR && req->result >= 0)
106	free (req->data2ptr);
107
108	Safefree (req);
109	}
110
111	static void
112	poll_wait ()
113	{
114	if (nreqs && !ress)
115	{	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
116	fd_set rfd;	206	fd_set rfd;
117	FD_ZERO(&rfd);	207	FD_ZERO(&rfd);
118	FD_SET(respipe [0], &rfd);	208	FD_SET(respipe [0], &rfd);
119		209
120	select (respipe [0] + 1, &rfd, 0, 0, 0);	210	select (respipe [0] + 1, &rfd, 0, 0, 0);
121	}	211	}
122	}	212	}
123		213
124	static int	214	static void req_invoke (aio_req req)
125	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 ()
126	{	361	{
127	dSP;	362	dSP;
128	int count = 0;	363	int count = 0;
129	int do_croak = 0;	364	int do_croak = 0;
130	aio_req req;	365	aio_req req;
…		…
152	pthread_mutex_unlock (&reslock);	387	pthread_mutex_unlock (&reslock);
153		388
154	if (!req)	389	if (!req)
155	break;	390	break;
156		391
157	nreqs--;	392	--nreqs;
158		393
159	if (req->type == REQ_QUIT)	394	if (req->type == REQ_QUIT)
160	started--;	395	started--;
		396	else if (req->type == REQ_GROUP && req->length)
		397	{
		398	req->fd = 1; /* mark request as delayed */
		399	continue;
		400	}
161	else	401	else
162	{	402	{
163	int errorno = errno;
164	errno = req->errorno;
165
166	if (req->type == REQ_READ)	403	if (req->type == REQ_READ)
167	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));
168		405
169	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	406	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
170	SvREADONLY_off (req->data);	407	SvREADONLY_off (req->data);
…		…
174	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	411	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
175	PL_laststatval = req->result;	412	PL_laststatval = req->result;
176	PL_statcache = *(req->statdata);	413	PL_statcache = *(req->statdata);
177	}	414	}
178		415
179	ENTER;	416	req_invoke (req);
180	PUSHMARK (SP);
181		417
182	if (req->type == REQ_READDIR)
183	{
184	SV *rv = &PL_sv_undef;
185
186	if (req->result >= 0)
187	{
188	char *buf = req->data2ptr;
189	AV *av = newAV ();
190
191	while (req->result)
192	{
193	SV *sv = newSVpv (buf, 0);
194
195	av_push (av, sv);
196	buf += SvCUR (sv) + 1;
197	req->result--;
198	}
199
200	rv = sv_2mortal (newRV_noinc ((SV *)av));
201	}
202
203	XPUSHs (rv);
204	}
205	else
206	{
207	XPUSHs (sv_2mortal (newSViv (req->result)));
208
209	if (req->type == REQ_OPEN)
210	{
211	/* convert fd to fh */
212	SV *fh;
213
214	PUTBACK;
215	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
216	SPAGAIN;
217
218	fh = SvREFCNT_inc (POPs);
219
220	PUSHMARK (SP);
221	XPUSHs (sv_2mortal (fh));
222	}
223	}
224
225	if (SvOK (req->callback))
226	{
227	PUTBACK;
228	call_sv (req->callback, G_VOID \| G_EVAL);
229	SPAGAIN;
230
231	if (SvTRUE (ERRSV))
232	{
233	free_req (req);
234	croak (0);
235	}
236	}
237
238	LEAVE;
239
240	errno = errorno;
241	count++;	418	count++;
242	}	419	}
243		420
244	free_req (req);	421	req_free (req);
245	}	422	}
246		423
247	return count;	424	return count;
248	}	425	}
249		426
250	static void aio_proc(void arg);	427	static void aio_proc(void arg);
251		428
252	static void
253	start_thread (void)	429	static void start_thread (void)
254	{	430	{
255	sigset_t fullsigset, oldsigset;	431	sigset_t fullsigset, oldsigset;
256	pthread_t tid;	432	pthread_t tid;
257	pthread_attr_t attr;	433	pthread_attr_t attr;
258		434
…		…
267	started++;	443	started++;
268		444
269	sigprocmask (SIG_SETMASK, &oldsigset, 0);	445	sigprocmask (SIG_SETMASK, &oldsigset, 0);
270	}	446	}
271		447
272	static void	448	static void req_send (aio_req req)
273	send_req (aio_req req)
274	{	449	{
275	while (started < wanted && nreqs >= started)	450	while (started < wanted && nreqs >= started)
276	start_thread ();	451	start_thread ();
277		452
278	nreqs++;	453	++nreqs;
279		454
280	pthread_mutex_lock (&reqlock);	455	pthread_mutex_lock (&reqlock);
281		456
282	req->next = 0;	457	req->next = 0;
283		458
…		…
302		477
303	poll_wait ();	478	poll_wait ();
304	}	479	}
305	}	480	}
306		481
307	static void	482	static void end_thread (void)
308	end_thread (void)
309	{	483	{
310	aio_req req;	484	aio_req req;
311	Newz (0, req, 1, aio_cb);	485	Newz (0, req, 1, aio_cb);
312	req->type = REQ_QUIT;	486	req->type = REQ_QUIT;
313		487
314	send_req (req);	488	req_send (req);
315	}	489	}
316		490
317	static void min_parallel (int nthreads)	491	static void min_parallel (int nthreads)
318	{	492	{
319	if (wanted < nthreads)	493	if (wanted < nthreads)
…		…
364	* 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,
365	* but that's your problem, not mine.	539	* but that's your problem, not mine.
366	*/	540	*/
367	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	541	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
368		542
369	static ssize_t	543	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
370	pread (int fd, void *buf, size_t count, off_t offset)
371	{	544	{
372	ssize_t res;	545	ssize_t res;
373	off_t ooffset;	546	off_t ooffset;
374		547
375	pthread_mutex_lock (&preadwritelock);	548	pthread_mutex_lock (&preadwritelock);
…		…
380	pthread_mutex_unlock (&preadwritelock);	553	pthread_mutex_unlock (&preadwritelock);
381		554
382	return res;	555	return res;
383	}	556	}
384		557
385	static ssize_t
386	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)
387	{	559	{
388	ssize_t res;	560	ssize_t res;
389	off_t ooffset;	561	off_t ooffset;
390		562
391	pthread_mutex_lock (&preadwritelock);	563	pthread_mutex_lock (&preadwritelock);
…		…
404	#endif	576	#endif
405		577
406	#if !HAVE_READAHEAD	578	#if !HAVE_READAHEAD
407	# define readahead aio_readahead	579	# define readahead aio_readahead
408		580
409	static ssize_t
410	readahead (int fd, off_t offset, size_t count)	581	static ssize_t readahead (int fd, off_t offset, size_t count)
411	{	582	{
412	char readahead_buf[4096];	583	char readahead_buf[4096];
413		584
414	while (count > 0)	585	while (count > 0)
415	{	586	{
…		…
427	#if !HAVE_READDIR_R	598	#if !HAVE_READDIR_R
428	# define readdir_r aio_readdir_r	599	# define readdir_r aio_readdir_r
429		600
430	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	601	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
431		602
432	static int
433	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	603	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
434	{	604	{
435	struct dirent *e;	605	struct dirent *e;
436	int errorno;	606	int errorno;
437		607
438	pthread_mutex_lock (&readdirlock);	608	pthread_mutex_lock (&readdirlock);
…		…
454	return e ? 0 : -1;	624	return e ? 0 : -1;
455	}	625	}
456	#endif	626	#endif
457		627
458	/* sendfile always needs emulation */	628	/* sendfile always needs emulation */
459	static ssize_t
460	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)
461	{	630	{
462	ssize_t res;	631	ssize_t res;
463		632
464	if (!count)	633	if (!count)
465	return 0;	634	return 0;
…		…
499		668
500	if (res < 0 && sbytes)	669	if (res < 0 && sbytes)
501	res = sbytes;	670	res = sbytes;
502	}	671	}
503		672
		673	# endif
504	# else	674	#else
505	res = -1;	675	res = -1;
506	errno = ENOSYS;	676	errno = ENOSYS;
507	# endif
508	#endif	677	#endif
509		678
510	if (res < 0	679	if (res < 0
511	&& (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK	680	&& (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK
512	#if __solaris	681	#if __solaris
…		…
517	{	686	{
518	/* emulate sendfile. this is a major pain in the ass */	687	/* emulate sendfile. this is a major pain in the ass */
519	char buf[4096];	688	char buf[4096];
520	res = 0;	689	res = 0;
521		690
522	for (;;)	691	while (count)
523	{	692	{
524	ssize_t cnt;	693	ssize_t cnt;
525		694
526	cnt = pread (ifd, buf, 4096, offset);	695	cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
527		696
528	if (cnt <= 0)	697	if (cnt <= 0)
529	{	698	{
530	if (cnt && !res) res = -1;	699	if (cnt && !res) res = -1;
531	break;	700	break;
…		…
539	break;	708	break;
540	}	709	}
541		710
542	offset += cnt;	711	offset += cnt;
543	res += cnt;	712	res += cnt;
		713	count -= cnt;
544	}	714	}
545	}	715	}
546		716
547	return res;	717	return res;
548	}	718	}
549		719
550	/* read a full directory */	720	/* read a full directory */
551	static int
552	scandir_ (const char path, void *namesp)	721	static int scandir_ (const char path, void *namesp)
553	{	722	{
554	DIR *dirp = opendir (path);	723	DIR *dirp = opendir (path);
555	union	724	union
556	{	725	{
557	struct dirent d;	726	struct dirent d;
…		…
611	return res;	780	return res;
612	}	781	}
613		782
614	/*****************************************************************************/	783	/*****************************************************************************/
615		784
616	static void *
617	aio_proc (void *thr_arg)	785	static void aio_proc (void thr_arg)
618	{	786	{
619	aio_req req;	787	aio_req req;
620	int type;	788	int type;
621		789
622	do	790	do
…		…
640	}	808	}
641		809
642	pthread_mutex_unlock (&reqlock);	810	pthread_mutex_unlock (&reqlock);
643		811
644	errno = 0; /* strictly unnecessary */	812	errno = 0; /* strictly unnecessary */
		813	type = req->type; /* remember type for QUIT check */
645		814
646	type = req->type;	815	if (!(req->flags & FLAG_CANCELLED))
647
648	switch (type)	816	switch (type)
649	{	817	{
650	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;
651	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;
652		820
653	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;
654	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;
655		823
656	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	824	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
657	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	825	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
658	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	826	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
659		827
660	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;
661	case REQ_CLOSE: req->result = close (req->fd); break;	829	case REQ_CLOSE: req->result = close (req->fd); break;
662	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	830	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
663	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	831	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		832	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
		833	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
664	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	834	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
665		835
666	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	836	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
667	case REQ_FSYNC: req->result = fsync (req->fd); break;	837	case REQ_FSYNC: req->result = fsync (req->fd); break;
668	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	838	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
669		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:
670	case REQ_QUIT:	852	case REQ_QUIT:
671	break;	853	break;
672		854
673	default:	855	default:
674	req->result = ENOSYS;	856	req->result = ENOSYS;
675	break;	857	break;
676	}	858	}
677		859
678	req->errorno = errno;	860	req->errorno = errno;
679		861
680	pthread_mutex_lock (&reslock);	862	pthread_mutex_lock (&reslock);
681		863
…		…
735		917
736	while (reqs)	918	while (reqs)
737	{	919	{
738	prv = reqs;	920	prv = reqs;
739	reqs = prv->next;	921	reqs = prv->next;
740	free_req (prv);	922	req_free (prv);
741	}	923	}
742		924
743	reqs = reqe = 0;	925	reqs = reqe = 0;
744		926
745	while (ress)	927	while (ress)
746	{	928	{
747	prv = ress;	929	prv = ress;
748	ress = prv->next;	930	ress = prv->next;
749	free_req (prv);	931	req_free (prv);
750	}	932	}
751		933
752	ress = rese = 0;	934	ress = rese = 0;
753		935
754	close (respipe [0]);	936	close (respipe [0]);
…		…
758	atfork_parent ();	940	atfork_parent ();
759	}	941	}
760		942
761	#define dREQ \	943	#define dREQ \
762	aio_req req; \	944	aio_req req; \
		945	int req_pri = next_pri; \
		946	next_pri = DEFAULT_PRI + PRI_BIAS; \
763	\	947	\
764	if (SvOK (callback) && !SvROK (callback)) \	948	if (SvOK (callback) && !SvROK (callback)) \
765	croak ("clalback must be undef or of reference type"); \	949	croak ("callback must be undef or of reference type"); \
766	\	950	\
767	Newz (0, req, 1, aio_cb); \	951	Newz (0, req, 1, aio_cb); \
768	if (!req) \	952	if (!req) \
769	croak ("out of memory during aio_req allocation"); \	953	croak ("out of memory during aio_req allocation"); \
770	\	954	\
771	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));
772		963
773	MODULE = IO::AIO PACKAGE = IO::AIO	964	MODULE = IO::AIO PACKAGE = IO::AIO
774		965
775	PROTOTYPES: ENABLE	966	PROTOTYPES: ENABLE
776		967
777	BOOT:	968	BOOT:
778	{	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
779	create_pipe ();	975	create_pipe ();
780	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	976	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
781	}	977	}
782		978
783	void	979	void
784	min_parallel(nthreads)	980	min_parallel (nthreads)
785	int nthreads	981	int nthreads
786	PROTOTYPE: $	982	PROTOTYPE: $
787		983
788	void	984	void
789	max_parallel(nthreads)	985	max_parallel (nthreads)
790	int nthreads	986	int nthreads
791	PROTOTYPE: $	987	PROTOTYPE: $
792		988
793	int	989	int
794	max_outstanding(nreqs)	990	max_outstanding (nreqs)
795	int nreqs	991	int nreqs
796	PROTOTYPE: $	992	PROTOTYPE: $
797	CODE:	993	CODE:
798	RETVAL = max_outstanding;	994	RETVAL = max_outstanding;
799	max_outstanding = nreqs;	995	max_outstanding = nreqs;
800		996
801	void	997	void
802	aio_open(pathname,flags,mode,callback=&PL_sv_undef)	998	aio_open (pathname,flags,mode,callback=&PL_sv_undef)
803	SV * pathname	999	SV * pathname
804	int flags	1000	int flags
805	int mode	1001	int mode
806	SV * callback	1002	SV * callback
807	PROTOTYPE: $$$;$	1003	PROTOTYPE: $$$;$
808	CODE:	1004	PPCODE:
809	{	1005	{
810	dREQ;	1006	dREQ;
811		1007
812	req->type = REQ_OPEN;	1008	req->type = REQ_OPEN;
813	req->data = newSVsv (pathname);	1009	req->data = newSVsv (pathname);
814	req->dataptr = SvPVbyte_nolen (req->data);	1010	req->dataptr = SvPVbyte_nolen (req->data);
815	req->fd = flags;	1011	req->fd = flags;
816	req->mode = mode;	1012	req->mode = mode;
817		1013
818	send_req (req);	1014	REQ_SEND;
819	}	1015	}
820		1016
821	void	1017	void
822	aio_close(fh,callback=&PL_sv_undef)	1018	aio_close (fh,callback=&PL_sv_undef)
823	SV * fh	1019	SV * fh
824	SV * callback	1020	SV * callback
825	PROTOTYPE: $;$	1021	PROTOTYPE: $;$
826	ALIAS:	1022	ALIAS:
827	aio_close = REQ_CLOSE	1023	aio_close = REQ_CLOSE
828	aio_fsync = REQ_FSYNC	1024	aio_fsync = REQ_FSYNC
829	aio_fdatasync = REQ_FDATASYNC	1025	aio_fdatasync = REQ_FDATASYNC
830	CODE:	1026	PPCODE:
831	{	1027	{
832	dREQ;	1028	dREQ;
833		1029
834	req->type = ix;	1030	req->type = ix;
835	req->fh = newSVsv (fh);	1031	req->fh = newSVsv (fh);
836	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1032	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
837		1033
838	send_req (req);	1034	REQ_SEND (req);
839	}	1035	}
840		1036
841	void	1037	void
842	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1038	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
843	SV * fh	1039	SV * fh
844	UV offset	1040	UV offset
845	UV length	1041	UV length
846	SV * data	1042	SV * data
847	UV dataoffset	1043	UV dataoffset
848	SV * callback	1044	SV * callback
849	ALIAS:	1045	ALIAS:
850	aio_read = REQ_READ	1046	aio_read = REQ_READ
851	aio_write = REQ_WRITE	1047	aio_write = REQ_WRITE
852	PROTOTYPE: $$$$$;$	1048	PROTOTYPE: $$$$$;$
853	CODE:	1049	PPCODE:
854	{	1050	{
855	aio_req req;	1051	aio_req req;
856	STRLEN svlen;	1052	STRLEN svlen;
857	char *svptr = SvPVbyte (data, svlen);	1053	char *svptr = SvPVbyte (data, svlen);
858		1054
…		…
896	{	1092	{
897	SvREADONLY_on (data);	1093	SvREADONLY_on (data);
898	req->data2ptr = (void *)data;	1094	req->data2ptr = (void *)data;
899	}	1095	}
900		1096
901	send_req (req);	1097	REQ_SEND;
902	}	1098	}
903	}	1099	}
904		1100
905	void	1101	void
906	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1102	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
907	SV * out_fh	1103	SV * out_fh
908	SV * in_fh	1104	SV * in_fh
909	UV in_offset	1105	UV in_offset
910	UV length	1106	UV length
911	SV * callback	1107	SV * callback
912	PROTOTYPE: $$$$;$	1108	PROTOTYPE: $$$$;$
913	CODE:	1109	PPCODE:
914	{	1110	{
915	dREQ;	1111	dREQ;
916		1112
917	req->type = REQ_SENDFILE;	1113	req->type = REQ_SENDFILE;
918	req->fh = newSVsv (out_fh);	1114	req->fh = newSVsv (out_fh);
…		…
920	req->fh2 = newSVsv (in_fh);	1116	req->fh2 = newSVsv (in_fh);
921	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1117	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
922	req->offset = in_offset;	1118	req->offset = in_offset;
923	req->length = length;	1119	req->length = length;
924		1120
925	send_req (req);	1121	REQ_SEND;
926	}	1122	}
927		1123
928	void	1124	void
929	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	1125	aio_readahead (fh,offset,length,callback=&PL_sv_undef)
930	SV * fh	1126	SV * fh
931	UV offset	1127	UV offset
932	IV length	1128	IV length
933	SV * callback	1129	SV * callback
934	PROTOTYPE: $$$;$	1130	PROTOTYPE: $$$;$
935	CODE:	1131	PPCODE:
936	{	1132	{
937	dREQ;	1133	dREQ;
938		1134
939	req->type = REQ_READAHEAD;	1135	req->type = REQ_READAHEAD;
940	req->fh = newSVsv (fh);	1136	req->fh = newSVsv (fh);
941	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1137	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
942	req->offset = offset;	1138	req->offset = offset;
943	req->length = length;	1139	req->length = length;
944		1140
945	send_req (req);	1141	REQ_SEND;
946	}	1142	}
947		1143
948	void	1144	void
949	aio_stat(fh_or_path,callback=&PL_sv_undef)	1145	aio_stat (fh_or_path,callback=&PL_sv_undef)
950	SV * fh_or_path	1146	SV * fh_or_path
951	SV * callback	1147	SV * callback
952	ALIAS:	1148	ALIAS:
953	aio_stat = REQ_STAT	1149	aio_stat = REQ_STAT
954	aio_lstat = REQ_LSTAT	1150	aio_lstat = REQ_LSTAT
955	CODE:	1151	PPCODE:
956	{	1152	{
957	dREQ;	1153	dREQ;
958		1154
959	New (0, req->statdata, 1, Stat_t);	1155	New (0, req->statdata, 1, Stat_t);
960	if (!req->statdata)	1156	if (!req->statdata)
961	{	1157	{
962	free_req (req);	1158	req_free (req);
963	croak ("out of memory during aio_req->statdata allocation");	1159	croak ("out of memory during aio_req->statdata allocation");
964	}	1160	}
965		1161
966	if (SvPOK (fh_or_path))	1162	if (SvPOK (fh_or_path))
967	{	1163	{
…		…
974	req->type = REQ_FSTAT;	1170	req->type = REQ_FSTAT;
975	req->fh = newSVsv (fh_or_path);	1171	req->fh = newSVsv (fh_or_path);
976	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1172	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
977	}	1173	}
978		1174
979	send_req (req);	1175	REQ_SEND;
980	}	1176	}
981		1177
982	void	1178	void
983	aio_unlink(pathname,callback=&PL_sv_undef)	1179	aio_unlink (pathname,callback=&PL_sv_undef)
984	SV * pathname	1180	SV * pathname
985	SV * callback	1181	SV * callback
986	ALIAS:	1182	ALIAS:
987	aio_unlink = REQ_UNLINK	1183	aio_unlink = REQ_UNLINK
988	aio_rmdir = REQ_RMDIR	1184	aio_rmdir = REQ_RMDIR
		1185	aio_readdir = REQ_READDIR
989	CODE:	1186	PPCODE:
990	{	1187	{
991	dREQ;	1188	dREQ;
992		1189
993	req->type = ix;	1190	req->type = ix;
994	req->data = newSVsv (pathname);	1191	req->data = newSVsv (pathname);
995	req->dataptr = SvPVbyte_nolen (req->data);	1192	req->dataptr = SvPVbyte_nolen (req->data);
996		1193
997	send_req (req);	1194	REQ_SEND;
998	}	1195	}
999		1196
1000	void	1197	void
1001	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)	1198	aio_link (oldpath,newpath,callback=&PL_sv_undef)
1002	SV * oldpath	1199	SV * oldpath
1003	SV * newpath	1200	SV * newpath
1004	SV * callback	1201	SV * callback
		1202	ALIAS:
		1203	aio_link = REQ_LINK
		1204	aio_symlink = REQ_SYMLINK
		1205	aio_rename = REQ_RENAME
1005	CODE:	1206	PPCODE:
1006	{	1207	{
1007	dREQ;	1208	dREQ;
1008		1209
1009	req->type = REQ_SYMLINK;	1210	req->type = ix;
1010	req->fh = newSVsv (oldpath);	1211	req->fh = newSVsv (oldpath);
1011	req->data2ptr = SvPVbyte_nolen (req->fh);	1212	req->data2ptr = SvPVbyte_nolen (req->fh);
1012	req->data = newSVsv (newpath);	1213	req->data = newSVsv (newpath);
1013	req->dataptr = SvPVbyte_nolen (req->data);	1214	req->dataptr = SvPVbyte_nolen (req->data);
1014		1215
1015	send_req (req);	1216	REQ_SEND;
1016	}	1217	}
1017		1218
1018	void	1219	void
1019	aio_readdir(pathname,callback=&PL_sv_undef)	1220	aio_sleep (delay,callback=&PL_sv_undef)
1020	SV * pathname	1221	double delay
1021	SV * callback	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)
1022	CODE:	1264	CODE:
1023	{	1265	if (pri > PRI_MIN) pri = PRI_MIN;
1024	dREQ;	1266	if (pri < PRI_MAX) pri = PRI_MAX;
1025		1267	next_pri = pri + PRI_BIAS;
1026	req->type = REQ_READDIR;
1027	req->data = newSVsv (pathname);
1028	req->dataptr = SvPVbyte_nolen (req->data);
1029
1030	send_req (req);
1031	}
1032		1268
		1269	#endif
		1270
1033	void	1271	void
1034	flush()	1272	flush ()
1035	PROTOTYPE:	1273	PROTOTYPE:
1036	CODE:	1274	CODE:
1037	while (nreqs)	1275	while (nreqs)
1038	{	1276	{
1039	poll_wait ();	1277	poll_wait ();
…		…
1079	CODE:	1317	CODE:
1080	RETVAL = nreqs;	1318	RETVAL = nreqs;
1081	OUTPUT:	1319	OUTPUT:
1082	RETVAL	1320	RETVAL
1083		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

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.37 by root, Tue Aug 23 12:37:19 2005 UTC vs. Revision 1.60 by root, Mon Oct 23 20:05:27 2006 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.37 by root, Tue Aug 23 12:37:19 2005 UTC vs.
Revision 1.60 by root, Mon Oct 23 20:05:27 2006 UTC