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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.44 by root, Sat Oct 21 23:20:29 2006 UTC vs.
Revision 1.64 by root, Mon Oct 23 23:54:41 2006 UTC

…		…
		1	#if __linux
		2	# define _GNU_SOURCE
		3	#endif
		4
1	#define _REENTRANT 1	5	#define _REENTRANT 1
		6
2	#include <errno.h>	7	#include <errno.h>
3		8
4	#include "EXTERN.h"	9	#include "EXTERN.h"
5	#include "perl.h"	10	#include "perl.h"
6	#include "XSUB.h"	11	#include "XSUB.h"
9		14
10	#include <pthread.h>	15	#include <pthread.h>
11		16
12	#include <stddef.h>	17	#include <stddef.h>
13	#include <errno.h>	18	#include <errno.h>
		19	#include <sys/time.h>
		20	#include <sys/select.h>
14	#include <sys/types.h>	21	#include <sys/types.h>
15	#include <sys/stat.h>	22	#include <sys/stat.h>
16	#include <limits.h>	23	#include <limits.h>
17	#include <unistd.h>	24	#include <unistd.h>
18	#include <fcntl.h>	25	#include <fcntl.h>
…		…
53	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	60	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
54	REQ_FSYNC, REQ_FDATASYNC,	61	REQ_FSYNC, REQ_FDATASYNC,
55	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	62	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
56	REQ_READDIR,	63	REQ_READDIR,
57	REQ_LINK, REQ_SYMLINK,	64	REQ_LINK, REQ_SYMLINK,
58	REQ_GROUP,	65	REQ_GROUP, REQ_NOP,
		66	REQ_SLEEP,
59	};	67	};
60		68
61	#define AIO_REQ_KLASS "IO::AIO::REQ"	69	#define AIO_REQ_KLASS "IO::AIO::REQ"
62	#define AIO_GRP_KLASS "IO::AIO::GRP"	70	#define AIO_GRP_KLASS "IO::AIO::GRP"
63		71
64	typedef struct aio_cb	72	typedef struct aio_cb
65	{	73	{
66	struct aio_cb grp, grp_prev, *grp_next;
67
68	struct aio_cb *volatile next;	74	struct aio_cb *volatile next;
69
70	SV self; / the perl counterpart of this request, if any */
71		75
72	SV data, callback;	76	SV data, callback;
73	SV fh, fh2;	77	SV fh, fh2;
74	void dataptr, data2ptr;	78	void dataptr, data2ptr;
75	Stat_t *statdata;	79	Stat_t *statdata;
76	off_t offset;	80	off_t offset;
77	size_t length;	81	size_t length;
78	ssize_t result;	82	ssize_t result;
79		83
		84	STRLEN dataoffset;
80	int type;	85	int type;
81	int fd, fd2;	86	int fd, fd2;
82	int errorno;	87	int errorno;
83	STRLEN dataoffset;
84	mode_t mode; /* open */	88	mode_t mode; /* open */
		89
85	unsigned char cancelled;	90	unsigned char flags;
		91	unsigned char pri;
		92
		93	SV self; / the perl counterpart of this request, if any */
		94	struct aio_cb grp, grp_prev, grp_next, grp_first;
86	} aio_cb;	95	} aio_cb;
		96
		97	enum {
		98	FLAG_CANCELLED = 0x01,
		99	};
87		100
88	typedef aio_cb *aio_req;	101	typedef aio_cb *aio_req;
89	typedef aio_cb *aio_req_ornot;	102	typedef aio_cb *aio_req_ornot;
90	typedef aio_cb *aio_group;	103
		104	enum {
		105	PRI_MIN = -4,
		106	PRI_MAX = 4,
		107
		108	DEFAULT_PRI = 0,
		109	PRI_BIAS = -PRI_MIN,
		110	};
		111
		112	static int next_pri = DEFAULT_PRI + PRI_BIAS;
91		113
92	static int started, wanted;	114	static int started, wanted;
93	static volatile int nreqs;	115	static volatile int nreqs;
94	static int max_outstanding = 1<<30;	116	static int max_outstanding = 1<<30;
95	static int respipe [2];	117	static int respipe [2];
96		118
		119	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
		120	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
		121	#else
		122	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
		123	#endif
		124
97	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	125	static pthread_mutex_t reslock = AIO_MUTEX_INIT;
98	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	126	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
99	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	127	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
100		128
101	static volatile aio_req reqs, reqe; /* queue start, queue end */	129	static volatile aio_req reqs, reqe; /* queue start, queue end */
102	static volatile aio_req ress, rese; /* queue start, queue end */	130	static volatile aio_req ress, rese; /* queue start, queue end */
103		131
		132	static void req_invoke (aio_req req);
		133	static void req_free (aio_req req);
		134
104	/* must be called at most once */	135	/* must be called at most once */
105	static SV req_sv (aio_req req, const char klass)	136	static SV req_sv (aio_req req, const char klass)
106	{	137	{
		138	if (!req->self)
		139	{
107	req->self = (SV *)newHV ();	140	req->self = (SV *)newHV ();
108	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	141	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		142	}
109		143
110	return sv_2mortal (sv_bless (newRV_noinc (req->self), gv_stashpv (klass, 1)));	144	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
111	}	145	}
112		146
113	static aio_req SvAIO_REQ (SV sv, const char klass)	147	static aio_req SvAIO_REQ (SV *sv)
114	{	148	{
		149	MAGIC *mg;
		150
115	if (!sv_derived_from (sv, klass) \|\| !SvROK (sv))	151	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
116	croak ("object of class %s expected", klass);	152	croak ("object of class " AIO_REQ_KLASS " expected");
117		153
118	MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	154	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
119		155
120	return mg ? (aio_req)mg->mg_ptr : 0;	156	return mg ? (aio_req)mg->mg_ptr : 0;
121	}	157	}
122		158
		159	static void aio_grp_feed (aio_req grp)
		160	{
		161	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
		162	{
		163	int old_len = grp->length;
		164
		165	if (grp->fh2 && SvOK (grp->fh2))
		166	{
		167	dSP;
		168
		169	ENTER;
		170	SAVETMPS;
		171	PUSHMARK (SP);
		172	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		173	PUTBACK;
		174	call_sv (grp->fh2, G_VOID \| G_EVAL);
		175	SPAGAIN;
		176	FREETMPS;
		177	LEAVE;
		178	}
		179
		180	/* stop if no progress has been made */
		181	if (old_len == grp->length)
		182	{
		183	SvREFCNT_dec (grp->fh2);
		184	grp->fh2 = 0;
		185	break;
		186	}
		187	}
		188	}
		189
		190	static void aio_grp_dec (aio_req grp)
		191	{
		192	--grp->length;
		193
		194	/* call feeder, if applicable */
		195	aio_grp_feed (grp);
		196
		197	/* finish, if done */
		198	if (!grp->length && grp->fd)
		199	{
		200	req_invoke (grp);
		201	req_free (grp);
		202	}
		203	}
		204
		205	static void poll_wait ()
		206	{
		207	fd_set rfd;
		208
		209	while (nreqs)
		210	{
		211	aio_req req;
		212	#if !(__x86 \|\| __x86_64) /* safe without sempahore on this archs */
		213	pthread_mutex_lock (&reslock);
		214	#endif
		215	req = ress;
		216	#if !(__x86 \|\| __x86_64) /* safe without sempahore on this archs */
		217	pthread_mutex_unlock (&reslock);
		218	#endif
		219
		220	if (req)
		221	return;
		222
		223	FD_ZERO(&rfd);
		224	FD_SET(respipe [0], &rfd);
		225
		226	select (respipe [0] + 1, &rfd, 0, 0, 0);
		227	}
		228	}
		229
		230	static void req_invoke (aio_req req)
		231	{
		232	dSP;
		233	int errorno = errno;
		234
		235	if (req->flags & FLAG_CANCELLED \|\| !SvOK (req->callback))
		236	return;
		237
		238	errno = req->errorno;
		239
		240	ENTER;
		241	SAVETMPS;
		242	PUSHMARK (SP);
		243	EXTEND (SP, 1);
		244
		245	switch (req->type)
		246	{
		247	case REQ_READDIR:
		248	{
		249	SV *rv = &PL_sv_undef;
		250
		251	if (req->result >= 0)
		252	{
		253	char *buf = req->data2ptr;
		254	AV *av = newAV ();
		255
		256	while (req->result)
		257	{
		258	SV *sv = newSVpv (buf, 0);
		259
		260	av_push (av, sv);
		261	buf += SvCUR (sv) + 1;
		262	req->result--;
		263	}
		264
		265	rv = sv_2mortal (newRV_noinc ((SV *)av));
		266	}
		267
		268	PUSHs (rv);
		269	}
		270	break;
		271
		272	case REQ_OPEN:
		273	{
		274	/* convert fd to fh */
		275	SV *fh;
		276
		277	PUSHs (sv_2mortal (newSViv (req->result)));
		278	PUTBACK;
		279	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		280	SPAGAIN;
		281
		282	fh = SvREFCNT_inc (POPs);
		283
		284	PUSHMARK (SP);
		285	XPUSHs (sv_2mortal (fh));
		286	}
		287	break;
		288
		289	case REQ_GROUP:
		290	req->fd = 2; /* mark group as finished */
		291
		292	if (req->data)
		293	{
		294	int i;
		295	AV av = (AV )req->data;
		296
		297	EXTEND (SP, AvFILL (av) + 1);
		298	for (i = 0; i <= AvFILL (av); ++i)
		299	PUSHs (*av_fetch (av, i, 0));
		300	}
		301	break;
		302
		303	case REQ_NOP:
		304	case REQ_SLEEP:
		305	break;
		306
		307	default:
		308	PUSHs (sv_2mortal (newSViv (req->result)));
		309	break;
		310	}
		311
		312
		313	PUTBACK;
		314	call_sv (req->callback, G_VOID \| G_EVAL);
		315	SPAGAIN;
		316
		317	FREETMPS;
		318	LEAVE;
		319
		320	errno = errorno;
		321
		322	if (SvTRUE (ERRSV))
		323	{
		324	req_free (req);
		325	croak (0);
		326	}
		327	}
		328
123	static void req_free (aio_req req)	329	static void req_free (aio_req req)
124	{	330	{
		331	if (req->grp)
		332	{
		333	aio_req grp = req->grp;
		334
		335	/* unlink request */
		336	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		337	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		338
		339	if (grp->grp_first == req)
		340	grp->grp_first = req->grp_next;
		341
		342	aio_grp_dec (grp);
		343	}
		344
125	if (req->self)	345	if (req->self)
126	{	346	{
127	sv_unmagic (req->self, PERL_MAGIC_ext);	347	sv_unmagic (req->self, PERL_MAGIC_ext);
128	SvREFCNT_dec (req->self);	348	SvREFCNT_dec (req->self);
129	}	349	}
130		350
131	if (req->data)
132	SvREFCNT_dec (req->data);	351	SvREFCNT_dec (req->data);
133
134	if (req->fh)
135	SvREFCNT_dec (req->fh);	352	SvREFCNT_dec (req->fh);
136
137	if (req->fh2)
138	SvREFCNT_dec (req->fh2);	353	SvREFCNT_dec (req->fh2);
139
140	if (req->statdata)
141	Safefree (req->statdata);
142
143	if (req->callback)
144	SvREFCNT_dec (req->callback);	354	SvREFCNT_dec (req->callback);
		355	Safefree (req->statdata);
145		356
146	if (req->type == REQ_READDIR && req->result >= 0)	357	if (req->type == REQ_READDIR && req->result >= 0)
147	free (req->data2ptr);	358	free (req->data2ptr);
148		359
149	Safefree (req);	360	Safefree (req);
150	}	361	}
151		362
152	static void	363	static void req_cancel (aio_req req)
153	poll_wait ()
154	{	364	{
155	if (nreqs && !ress)	365	req->flags \|= FLAG_CANCELLED;
156	{
157	fd_set rfd;
158	FD_ZERO(&rfd);
159	FD_SET(respipe [0], &rfd);
160		366
161	select (respipe [0] + 1, &rfd, 0, 0, 0);	367	if (req->type == REQ_GROUP)
162	}	368	{
163	}	369	aio_req sub;
164		370
165	static int	371	for (sub = req->grp_first; sub; sub = sub->grp_next)
166	poll_cb ()	372	req_cancel (sub);
		373	}
		374	}
		375
		376	static int poll_cb ()
167	{	377	{
168	dSP;	378	dSP;
169	int count = 0;	379	int count = 0;
170	int do_croak = 0;	380	int do_croak = 0;
171	aio_req req;	381	aio_req req;
…		…
193	pthread_mutex_unlock (&reslock);	403	pthread_mutex_unlock (&reslock);
194		404
195	if (!req)	405	if (!req)
196	break;	406	break;
197		407
198	nreqs--;	408	--nreqs;
199		409
200	if (req->type == REQ_QUIT)	410	if (req->type == REQ_QUIT)
201	started--;	411	started--;
		412	else if (req->type == REQ_GROUP && req->length)
		413	{
		414	req->fd = 1; /* mark request as delayed */
		415	continue;
		416	}
202	else	417	else
203	{	418	{
204	int errorno = errno;
205	errno = req->errorno;
206
207	if (req->type == REQ_READ)	419	if (req->type == REQ_READ)
208	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	420	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
209		421
210	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	422	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
211	SvREADONLY_off (req->data);	423	SvREADONLY_off (req->data);
…		…
215	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	427	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
216	PL_laststatval = req->result;	428	PL_laststatval = req->result;
217	PL_statcache = *(req->statdata);	429	PL_statcache = *(req->statdata);
218	}	430	}
219		431
220	ENTER;	432	req_invoke (req);
221	PUSHMARK (SP);
222		433
223	if (req->type == REQ_READDIR)
224	{
225	SV *rv = &PL_sv_undef;
226
227	if (req->result >= 0)
228	{
229	char *buf = req->data2ptr;
230	AV *av = newAV ();
231
232	while (req->result)
233	{
234	SV *sv = newSVpv (buf, 0);
235
236	av_push (av, sv);
237	buf += SvCUR (sv) + 1;
238	req->result--;
239	}
240
241	rv = sv_2mortal (newRV_noinc ((SV *)av));
242	}
243
244	XPUSHs (rv);
245	}
246	else
247	{
248	XPUSHs (sv_2mortal (newSViv (req->result)));
249
250	if (req->type == REQ_OPEN)
251	{
252	/* convert fd to fh */
253	SV *fh;
254
255	PUTBACK;
256	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
257	SPAGAIN;
258
259	fh = SvREFCNT_inc (POPs);
260
261	PUSHMARK (SP);
262	XPUSHs (sv_2mortal (fh));
263	}
264	}
265
266	if (SvOK (req->callback) && !req->cancelled)
267	{
268	PUTBACK;
269	call_sv (req->callback, G_VOID \| G_EVAL);
270	SPAGAIN;
271
272	if (SvTRUE (ERRSV))
273	{
274	req_free (req);
275	croak (0);
276	}
277	}
278
279	LEAVE;
280
281	errno = errorno;
282	count++;	434	count++;
283	}	435	}
284		436
285	req_free (req);	437	req_free (req);
286	}	438	}
…		…
288	return count;	440	return count;
289	}	441	}
290		442
291	static void aio_proc(void arg);	443	static void aio_proc(void arg);
292		444
293	static void
294	start_thread (void)	445	static void start_thread (void)
295	{	446	{
296	sigset_t fullsigset, oldsigset;	447	sigset_t fullsigset, oldsigset;
297	pthread_t tid;	448	pthread_t tid;
298	pthread_attr_t attr;	449	pthread_attr_t attr;
299		450
…		…
308	started++;	459	started++;
309		460
310	sigprocmask (SIG_SETMASK, &oldsigset, 0);	461	sigprocmask (SIG_SETMASK, &oldsigset, 0);
311	}	462	}
312		463
313	static void
314	req_send (aio_req req)	464	static void req_send (aio_req req)
315	{	465	{
316	while (started < wanted && nreqs >= started)	466	while (started < wanted && nreqs >= started)
317	start_thread ();	467	start_thread ();
318		468
319	nreqs++;	469	++nreqs;
320		470
321	pthread_mutex_lock (&reqlock);	471	pthread_mutex_lock (&reqlock);
322		472
323	req->next = 0;	473	req->next = 0;
324		474
…		…
343		493
344	poll_wait ();	494	poll_wait ();
345	}	495	}
346	}	496	}
347		497
348	static void	498	static void end_thread (void)
349	end_thread (void)
350	{	499	{
351	aio_req req;	500	aio_req req;
352	Newz (0, req, 1, aio_cb);	501	Newz (0, req, 1, aio_cb);
353	req->type = REQ_QUIT;	502	req->type = REQ_QUIT;
354		503
…		…
405	* normal read/write by using a mutex. slows down execution a lot,	554	* normal read/write by using a mutex. slows down execution a lot,
406	* but that's your problem, not mine.	555	* but that's your problem, not mine.
407	*/	556	*/
408	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	557	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
409		558
410	static ssize_t	559	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
411	pread (int fd, void *buf, size_t count, off_t offset)
412	{	560	{
413	ssize_t res;	561	ssize_t res;
414	off_t ooffset;	562	off_t ooffset;
415		563
416	pthread_mutex_lock (&preadwritelock);	564	pthread_mutex_lock (&preadwritelock);
…		…
421	pthread_mutex_unlock (&preadwritelock);	569	pthread_mutex_unlock (&preadwritelock);
422		570
423	return res;	571	return res;
424	}	572	}
425		573
426	static ssize_t
427	pwrite (int fd, void *buf, size_t count, off_t offset)	574	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
428	{	575	{
429	ssize_t res;	576	ssize_t res;
430	off_t ooffset;	577	off_t ooffset;
431		578
432	pthread_mutex_lock (&preadwritelock);	579	pthread_mutex_lock (&preadwritelock);
…		…
445	#endif	592	#endif
446		593
447	#if !HAVE_READAHEAD	594	#if !HAVE_READAHEAD
448	# define readahead aio_readahead	595	# define readahead aio_readahead
449		596
450	static ssize_t
451	readahead (int fd, off_t offset, size_t count)	597	static ssize_t readahead (int fd, off_t offset, size_t count)
452	{	598	{
453	char readahead_buf[4096];	599	char readahead_buf[4096];
454		600
455	while (count > 0)	601	while (count > 0)
456	{	602	{
…		…
468	#if !HAVE_READDIR_R	614	#if !HAVE_READDIR_R
469	# define readdir_r aio_readdir_r	615	# define readdir_r aio_readdir_r
470		616
471	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	617	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
472		618
473	static int
474	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	619	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
475	{	620	{
476	struct dirent *e;	621	struct dirent *e;
477	int errorno;	622	int errorno;
478		623
479	pthread_mutex_lock (&readdirlock);	624	pthread_mutex_lock (&readdirlock);
…		…
495	return e ? 0 : -1;	640	return e ? 0 : -1;
496	}	641	}
497	#endif	642	#endif
498		643
499	/* sendfile always needs emulation */	644	/* sendfile always needs emulation */
500	static ssize_t
501	sendfile_ (int ofd, int ifd, off_t offset, size_t count)	645	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
502	{	646	{
503	ssize_t res;	647	ssize_t res;
504		648
505	if (!count)	649	if (!count)
506	return 0;	650	return 0;
…		…
588		732
589	return res;	733	return res;
590	}	734	}
591		735
592	/* read a full directory */	736	/* read a full directory */
593	static int
594	scandir_ (const char path, void *namesp)	737	static int scandir_ (const char path, void *namesp)
595	{	738	{
596	DIR *dirp = opendir (path);	739	DIR *dirp = opendir (path);
597	union	740	union
598	{	741	{
599	struct dirent d;	742	struct dirent d;
…		…
653	return res;	796	return res;
654	}	797	}
655		798
656	/*****************************************************************************/	799	/*****************************************************************************/
657		800
658	static void *
659	aio_proc (void *thr_arg)	801	static void aio_proc (void thr_arg)
660	{	802	{
661	aio_req req;	803	aio_req req;
662	int type;	804	int type;
663		805
664	do	806	do
…		…
682	}	824	}
683		825
684	pthread_mutex_unlock (&reqlock);	826	pthread_mutex_unlock (&reqlock);
685		827
686	errno = 0; /* strictly unnecessary */	828	errno = 0; /* strictly unnecessary */
		829	type = req->type; /* remember type for QUIT check */
687		830
688	if (!req->cancelled)	831	if (!(req->flags & FLAG_CANCELLED))
689	switch (req->type)	832	switch (type)
690	{	833	{
691	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	834	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
692	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	835	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
693		836
694	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	837	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
…		…
708		851
709	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	852	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
710	case REQ_FSYNC: req->result = fsync (req->fd); break;	853	case REQ_FSYNC: req->result = fsync (req->fd); break;
711	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	854	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
712		855
		856	case REQ_SLEEP:
		857	{
		858	struct timeval tv;
		859
		860	tv.tv_sec = req->fd;
		861	tv.tv_usec = req->fd2;
		862
		863	req->result = select (0, 0, 0, 0, &tv);
		864	}
		865
		866	case REQ_GROUP:
		867	case REQ_NOP:
713	case REQ_QUIT:	868	case REQ_QUIT:
714	break;	869	break;
715		870
716	default:	871	default:
717	req->result = ENOSYS;	872	req->result = ENOSYS;
…		…
801	atfork_parent ();	956	atfork_parent ();
802	}	957	}
803		958
804	#define dREQ \	959	#define dREQ \
805	aio_req req; \	960	aio_req req; \
		961	int req_pri = next_pri; \
		962	next_pri = DEFAULT_PRI + PRI_BIAS; \
806	\	963	\
807	if (SvOK (callback) && !SvROK (callback)) \	964	if (SvOK (callback) && !SvROK (callback)) \
808	croak ("callback must be undef or of reference type"); \	965	croak ("callback must be undef or of reference type"); \
809	\	966	\
810	Newz (0, req, 1, aio_cb); \	967	Newz (0, req, 1, aio_cb); \
811	if (!req) \	968	if (!req) \
812	croak ("out of memory during aio_req allocation"); \	969	croak ("out of memory during aio_req allocation"); \
813	\	970	\
814	req->callback = newSVsv (callback)	971	req->callback = newSVsv (callback); \
		972	req->pri = req_pri
815		973
816	#define REQ_SEND \	974	#define REQ_SEND \
817	req_send (req); \	975	req_send (req); \
818	\	976	\
819	if (GIMME_V != G_VOID) \	977	if (GIMME_V != G_VOID) \
…		…
1073		1231
1074	REQ_SEND;	1232	REQ_SEND;
1075	}	1233	}
1076		1234
1077	void	1235	void
		1236	aio_sleep (delay,callback=&PL_sv_undef)
		1237	double delay
		1238	SV * callback
		1239	PPCODE:
		1240	{
		1241	dREQ;
		1242
		1243	req->type = REQ_SLEEP;
		1244	req->fd = delay < 0. ? 0 : delay;
		1245	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
		1246
		1247	REQ_SEND;
		1248	}
		1249
		1250	void
1078	aio_group (callback=&PL_sv_undef)	1251	aio_group (callback=&PL_sv_undef)
1079	SV * callback	1252	SV * callback
1080	PROTOTYPE: ;&	1253	PROTOTYPE: ;$
1081	PPCODE:	1254	PPCODE:
1082	{	1255	{
1083	dREQ;	1256	dREQ;
		1257
1084	req->type = REQ_GROUP;	1258	req->type = REQ_GROUP;
		1259	req_send (req);
		1260
1085	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1261	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1086	}	1262	}
		1263
		1264	void
		1265	aio_nop (callback=&PL_sv_undef)
		1266	SV * callback
		1267	PPCODE:
		1268	{
		1269	dREQ;
		1270
		1271	req->type = REQ_NOP;
		1272
		1273	REQ_SEND;
		1274	}
		1275
		1276	#if 0
		1277
		1278	void
		1279	aio_pri (int pri = DEFAULT_PRI)
		1280	CODE:
		1281	if (pri < PRI_MIN) pri = PRI_MIN;
		1282	if (pri > PRI_MAX) pri = PRI_MAX;
		1283	next_pri = pri + PRI_BIAS;
		1284
		1285	#endif
1087		1286
1088	void	1287	void
1089	flush ()	1288	flush ()
1090	PROTOTYPE:	1289	PROTOTYPE:
1091	CODE:	1290	CODE:
…		…
1134	CODE:	1333	CODE:
1135	RETVAL = nreqs;	1334	RETVAL = nreqs;
1136	OUTPUT:	1335	OUTPUT:
1137	RETVAL	1336	RETVAL
1138		1337
		1338	PROTOTYPES: DISABLE
		1339
1139	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1340	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1140		1341
1141	void	1342	void
1142	cancel (aio_req_ornot req)	1343	cancel (aio_req_ornot req)
1143	PROTOTYPE:	1344	PROTOTYPE:
1144	CODE:	1345	CODE:
1145	req->cancelled = 1;	1346	req_cancel (req);
1146		1347
		1348	void
		1349	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1350	CODE:
		1351	SvREFCNT_dec (req->callback);
		1352	req->callback = newSVsv (callback);
		1353
		1354	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
		1355
		1356	void
		1357	add (aio_req grp, ...)
		1358	PPCODE:
		1359	{
		1360	int i;
		1361	aio_req req;
		1362
		1363	if (grp->fd == 2)
		1364	croak ("cannot add requests to IO::AIO::GRP after the group finished");
		1365
		1366	for (i = 1; i < items; ++i )
		1367	{
		1368	if (GIMME_V != G_VOID)
		1369	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1370
		1371	req = SvAIO_REQ (ST (i));
		1372
		1373	if (req)
		1374	{
		1375	++grp->length;
		1376	req->grp = grp;
		1377
		1378	req->grp_prev = 0;
		1379	req->grp_next = grp->grp_first;
		1380
		1381	if (grp->grp_first)
		1382	grp->grp_first->grp_prev = req;
		1383
		1384	grp->grp_first = req;
		1385	}
		1386	}
		1387	}
		1388
		1389	void
		1390	result (aio_req grp, ...)
		1391	CODE:
		1392	{
		1393	int i;
		1394	AV *av = newAV ();
		1395
		1396	for (i = 1; i < items; ++i )
		1397	av_push (av, newSVsv (ST (i)));
		1398
		1399	SvREFCNT_dec (grp->data);
		1400	grp->data = (SV *)av;
		1401	}
		1402
		1403	void
		1404	feed_limit (aio_req grp, int limit)
		1405	CODE:
		1406	grp->fd2 = limit;
		1407	aio_grp_feed (grp);
		1408
		1409	void
		1410	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1411	CODE:
		1412	{
		1413	SvREFCNT_dec (grp->fh2);
		1414	grp->fh2 = newSVsv (callback);
		1415
		1416	if (grp->fd2 <= 0)
		1417	grp->fd2 = 2;
		1418
		1419	aio_grp_feed (grp);
		1420	}
		1421

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.44 by root, Sat Oct 21 23:20:29 2006 UTC vs. Revision 1.64 by root, Mon Oct 23 23:54:41 2006 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.44 by root, Sat Oct 21 23:20:29 2006 UTC vs.
Revision 1.64 by root, Mon Oct 23 23:54:41 2006 UTC