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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.43 by root, Sat Oct 21 23:06:04 2006 UTC vs.
Revision 1.61 by root, Mon Oct 23 22:44:21 2006 UTC

…		…
9		9
10	#include <pthread.h>	10	#include <pthread.h>
11		11
12	#include <stddef.h>	12	#include <stddef.h>
13	#include <errno.h>	13	#include <errno.h>
		14	#include <sys/time.h>
		15	#include <sys/select.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
15	#include <sys/stat.h>	17	#include <sys/stat.h>
16	#include <limits.h>	18	#include <limits.h>
17	#include <unistd.h>	19	#include <unistd.h>
18	#include <fcntl.h>	20	#include <fcntl.h>
…		…
53	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	55	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
54	REQ_FSYNC, REQ_FDATASYNC,	56	REQ_FSYNC, REQ_FDATASYNC,
55	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
56	REQ_READDIR,	58	REQ_READDIR,
57	REQ_LINK, REQ_SYMLINK,	59	REQ_LINK, REQ_SYMLINK,
		60	REQ_GROUP, REQ_NOP,
		61	REQ_SLEEP,
58	};	62	};
59		63
60	#define AIO_CB_KLASS "IO::AIO::CB"	64	#define AIO_REQ_KLASS "IO::AIO::REQ"
		65	#define AIO_GRP_KLASS "IO::AIO::GRP"
61		66
62	typedef struct aio_cb	67	typedef struct aio_cb
63	{	68	{
64	struct aio_cb grp_prev, grp_next;
65	struct aio_grp *grp;
66
67	struct aio_cb *volatile next;	69	struct aio_cb *volatile next;
68
69	SV self; / the perl counterpart of this request, if any */
70		70
71	SV data, callback;	71	SV data, callback;
72	SV fh, fh2;	72	SV fh, fh2;
73	void dataptr, data2ptr;	73	void dataptr, data2ptr;
74	Stat_t *statdata;	74	Stat_t *statdata;
75	off_t offset;	75	off_t offset;
76	size_t length;	76	size_t length;
77	ssize_t result;	77	ssize_t result;
78		78
		79	STRLEN dataoffset;
79	int type;	80	int type;
80	int fd, fd2;	81	int fd, fd2;
81	int errorno;	82	int errorno;
82	STRLEN dataoffset;
83	mode_t mode; /* open */	83	mode_t mode; /* open */
		84
84	unsigned char cancelled;	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;
85	} aio_cb;	90	} aio_cb;
		91
		92	enum {
		93	FLAG_CANCELLED = 0x01,
		94	};
86		95
87	typedef aio_cb *aio_req;	96	typedef aio_cb *aio_req;
88	typedef aio_cb *aio_req_ornot;	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;
89		108
90	static int started, wanted;	109	static int started, wanted;
91	static volatile int nreqs;	110	static volatile int nreqs;
92	static int max_outstanding = 1<<30;	111	static int max_outstanding = 1<<30;
93	static int respipe [2];	112	static int respipe [2];
…		…
97	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	116	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
98		117
99	static volatile aio_req reqs, reqe; /* queue start, queue end */	118	static volatile aio_req reqs, reqe; /* queue start, queue end */
100	static volatile aio_req ress, rese; /* queue start, queue end */	119	static volatile aio_req ress, rese; /* queue start, queue end */
101		120
102	typedef struct aio_grp	121	static void req_invoke (aio_req req);
103	{	122	static void req_free (aio_req req);
104	struct aio_cb first, last;
105	SV *callback;
106	int busycount;
107	} aio_grp;
108
109	static void aio_grp_begin (aio_grp *grp)
110	{
111	++grp->busycount;
112	}
113
114	static void aio_grp_end (aio_grp *grp)
115	{
116	--grp->busycount;
117
118	if (grp->busycount)
119	return;
120
121	SvREFCNT_dec (grp->callback);
122	grp->callback = 0;
123	}
124
125	static aio_grp *aio_grp_new ()
126	{
127	aio_grp *grp;
128
129	Newz (0, grp, 1, aio_grp);
130	aio_grp_begin (grp);
131
132	return grp;
133	}
134		123
135	/* must be called at most once */	124	/* must be called at most once */
136	static SV *req_sv (aio_req req)	125	static SV req_sv (aio_req req, const char klass)
137	{	126	{
		127	if (!req->self)
		128	{
138	req->self = (SV *)newHV ();	129	req->self = (SV *)newHV ();
139	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	130	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		131	}
140		132
141	return sv_bless (newRV_noinc (req->self), gv_stashpv (AIO_CB_KLASS, 1));	133	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
142	}	134	}
143		135
144	static aio_req SvAIO_REQ (SV *sv)	136	static aio_req SvAIO_REQ (SV *sv)
145	{	137	{
		138	MAGIC *mg;
		139
146	if (!sv_derived_from (sv, AIO_CB_KLASS) \|\| !SvROK (sv))	140	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
147	croak ("object of class " AIO_CB_KLASS " expected");	141	croak ("object of class " AIO_REQ_KLASS " expected");
148		142
149	MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	143	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
150		144
151	return mg ? (aio_req)mg->mg_ptr : 0;	145	return mg ? (aio_req)mg->mg_ptr : 0;
152	}	146	}
153		147
154	static void req_free (aio_req req)	148	static void aio_grp_feed (aio_req grp)
155	{	149	{
156	if (req->self)	150	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
157	{
158	sv_unmagic (req->self, PERL_MAGIC_ext);
159	SvREFCNT_dec (req->self);
160	}	151	{
		152	int old_len = grp->length;
161		153
162	if (req->data)	154	if (grp->fh2 && SvOK (grp->fh2))
163	SvREFCNT_dec (req->data);	155	{
		156	dSP;
164		157
165	if (req->fh)	158	ENTER;
166	SvREFCNT_dec (req->fh);	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	}
167		168
168	if (req->fh2)	169	/* stop if no progress has been made */
		170	if (old_len == grp->length)
		171	{
169	SvREFCNT_dec (req->fh2);	172	SvREFCNT_dec (grp->fh2);
170		173	grp->fh2 = 0;
171	if (req->statdata)	174	break;
172	Safefree (req->statdata);	175	}
173
174	if (req->callback)
175	SvREFCNT_dec (req->callback);
176
177	if (req->type == REQ_READDIR && req->result >= 0)
178	free (req->data2ptr);
179
180	Safefree (req);
181	}
182
183	static void
184	poll_wait ()
185	{
186	if (nreqs && !ress)
187	{	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
188	fd_set rfd;	206	fd_set rfd;
189	FD_ZERO(&rfd);	207	FD_ZERO(&rfd);
190	FD_SET(respipe [0], &rfd);	208	FD_SET(respipe [0], &rfd);
191		209
192	select (respipe [0] + 1, &rfd, 0, 0, 0);	210	select (respipe [0] + 1, &rfd, 0, 0, 0);
193	}	211	}
194	}	212	}
195		213
196	static int	214	static void req_invoke (aio_req req)
197	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 ()
198	{	361	{
199	dSP;	362	dSP;
200	int count = 0;	363	int count = 0;
201	int do_croak = 0;	364	int do_croak = 0;
202	aio_req req;	365	aio_req req;
…		…
224	pthread_mutex_unlock (&reslock);	387	pthread_mutex_unlock (&reslock);
225		388
226	if (!req)	389	if (!req)
227	break;	390	break;
228		391
229	nreqs--;	392	--nreqs;
230		393
231	if (req->type == REQ_QUIT)	394	if (req->type == REQ_QUIT)
232	started--;	395	started--;
		396	else if (req->type == REQ_GROUP && req->length)
		397	{
		398	req->fd = 1; /* mark request as delayed */
		399	continue;
		400	}
233	else	401	else
234	{	402	{
235	int errorno = errno;
236	errno = req->errorno;
237
238	if (req->type == REQ_READ)	403	if (req->type == REQ_READ)
239	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));
240		405
241	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	406	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
242	SvREADONLY_off (req->data);	407	SvREADONLY_off (req->data);
…		…
246	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	411	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
247	PL_laststatval = req->result;	412	PL_laststatval = req->result;
248	PL_statcache = *(req->statdata);	413	PL_statcache = *(req->statdata);
249	}	414	}
250		415
251	ENTER;	416	req_invoke (req);
252	PUSHMARK (SP);
253		417
254	if (req->type == REQ_READDIR)
255	{
256	SV *rv = &PL_sv_undef;
257
258	if (req->result >= 0)
259	{
260	char *buf = req->data2ptr;
261	AV *av = newAV ();
262
263	while (req->result)
264	{
265	SV *sv = newSVpv (buf, 0);
266
267	av_push (av, sv);
268	buf += SvCUR (sv) + 1;
269	req->result--;
270	}
271
272	rv = sv_2mortal (newRV_noinc ((SV *)av));
273	}
274
275	XPUSHs (rv);
276	}
277	else
278	{
279	XPUSHs (sv_2mortal (newSViv (req->result)));
280
281	if (req->type == REQ_OPEN)
282	{
283	/* convert fd to fh */
284	SV *fh;
285
286	PUTBACK;
287	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
288	SPAGAIN;
289
290	fh = SvREFCNT_inc (POPs);
291
292	PUSHMARK (SP);
293	XPUSHs (sv_2mortal (fh));
294	}
295	}
296
297	if (SvOK (req->callback) && !req->cancelled)
298	{
299	PUTBACK;
300	call_sv (req->callback, G_VOID \| G_EVAL);
301	SPAGAIN;
302
303	if (SvTRUE (ERRSV))
304	{
305	req_free (req);
306	croak (0);
307	}
308	}
309
310	LEAVE;
311
312	errno = errorno;
313	count++;	418	count++;
314	}	419	}
315		420
316	req_free (req);	421	req_free (req);
317	}	422	}
…		…
319	return count;	424	return count;
320	}	425	}
321		426
322	static void aio_proc(void arg);	427	static void aio_proc(void arg);
323		428
324	static void
325	start_thread (void)	429	static void start_thread (void)
326	{	430	{
327	sigset_t fullsigset, oldsigset;	431	sigset_t fullsigset, oldsigset;
328	pthread_t tid;	432	pthread_t tid;
329	pthread_attr_t attr;	433	pthread_attr_t attr;
330		434
…		…
339	started++;	443	started++;
340		444
341	sigprocmask (SIG_SETMASK, &oldsigset, 0);	445	sigprocmask (SIG_SETMASK, &oldsigset, 0);
342	}	446	}
343		447
344	static void
345	req_send (aio_req req)	448	static void req_send (aio_req req)
346	{	449	{
347	while (started < wanted && nreqs >= started)	450	while (started < wanted && nreqs >= started)
348	start_thread ();	451	start_thread ();
349		452
350	nreqs++;	453	++nreqs;
351		454
352	pthread_mutex_lock (&reqlock);	455	pthread_mutex_lock (&reqlock);
353		456
354	req->next = 0;	457	req->next = 0;
355		458
…		…
374		477
375	poll_wait ();	478	poll_wait ();
376	}	479	}
377	}	480	}
378		481
379	static void	482	static void end_thread (void)
380	end_thread (void)
381	{	483	{
382	aio_req req;	484	aio_req req;
383	Newz (0, req, 1, aio_cb);	485	Newz (0, req, 1, aio_cb);
384	req->type = REQ_QUIT;	486	req->type = REQ_QUIT;
385		487
…		…
436	* 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,
437	* but that's your problem, not mine.	539	* but that's your problem, not mine.
438	*/	540	*/
439	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	541	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
440		542
441	static ssize_t	543	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
442	pread (int fd, void *buf, size_t count, off_t offset)
443	{	544	{
444	ssize_t res;	545	ssize_t res;
445	off_t ooffset;	546	off_t ooffset;
446		547
447	pthread_mutex_lock (&preadwritelock);	548	pthread_mutex_lock (&preadwritelock);
…		…
452	pthread_mutex_unlock (&preadwritelock);	553	pthread_mutex_unlock (&preadwritelock);
453		554
454	return res;	555	return res;
455	}	556	}
456		557
457	static ssize_t
458	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)
459	{	559	{
460	ssize_t res;	560	ssize_t res;
461	off_t ooffset;	561	off_t ooffset;
462		562
463	pthread_mutex_lock (&preadwritelock);	563	pthread_mutex_lock (&preadwritelock);
…		…
476	#endif	576	#endif
477		577
478	#if !HAVE_READAHEAD	578	#if !HAVE_READAHEAD
479	# define readahead aio_readahead	579	# define readahead aio_readahead
480		580
481	static ssize_t
482	readahead (int fd, off_t offset, size_t count)	581	static ssize_t readahead (int fd, off_t offset, size_t count)
483	{	582	{
484	char readahead_buf[4096];	583	char readahead_buf[4096];
485		584
486	while (count > 0)	585	while (count > 0)
487	{	586	{
…		…
499	#if !HAVE_READDIR_R	598	#if !HAVE_READDIR_R
500	# define readdir_r aio_readdir_r	599	# define readdir_r aio_readdir_r
501		600
502	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	601	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
503		602
504	static int
505	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	603	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
506	{	604	{
507	struct dirent *e;	605	struct dirent *e;
508	int errorno;	606	int errorno;
509		607
510	pthread_mutex_lock (&readdirlock);	608	pthread_mutex_lock (&readdirlock);
…		…
526	return e ? 0 : -1;	624	return e ? 0 : -1;
527	}	625	}
528	#endif	626	#endif
529		627
530	/* sendfile always needs emulation */	628	/* sendfile always needs emulation */
531	static ssize_t
532	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)
533	{	630	{
534	ssize_t res;	631	ssize_t res;
535		632
536	if (!count)	633	if (!count)
537	return 0;	634	return 0;
…		…
619		716
620	return res;	717	return res;
621	}	718	}
622		719
623	/* read a full directory */	720	/* read a full directory */
624	static int
625	scandir_ (const char path, void *namesp)	721	static int scandir_ (const char path, void *namesp)
626	{	722	{
627	DIR *dirp = opendir (path);	723	DIR *dirp = opendir (path);
628	union	724	union
629	{	725	{
630	struct dirent d;	726	struct dirent d;
…		…
684	return res;	780	return res;
685	}	781	}
686		782
687	/*****************************************************************************/	783	/*****************************************************************************/
688		784
689	static void *
690	aio_proc (void *thr_arg)	785	static void aio_proc (void thr_arg)
691	{	786	{
692	aio_req req;	787	aio_req req;
693	int type;	788	int type;
694		789
695	do	790	do
…		…
713	}	808	}
714		809
715	pthread_mutex_unlock (&reqlock);	810	pthread_mutex_unlock (&reqlock);
716		811
717	errno = 0; /* strictly unnecessary */	812	errno = 0; /* strictly unnecessary */
		813	type = req->type; /* remember type for QUIT check */
718		814
719	if (!req->cancelled)	815	if (!(req->flags & FLAG_CANCELLED))
720	switch (req->type)	816	switch (type)
721	{	817	{
722	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;
723	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;
724		820
725	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;
…		…
739		835
740	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	836	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
741	case REQ_FSYNC: req->result = fsync (req->fd); break;	837	case REQ_FSYNC: req->result = fsync (req->fd); break;
742	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	838	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
743		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:
744	case REQ_QUIT:	852	case REQ_QUIT:
745	break;	853	break;
746		854
747	default:	855	default:
748	req->result = ENOSYS;	856	req->result = ENOSYS;
…		…
832	atfork_parent ();	940	atfork_parent ();
833	}	941	}
834		942
835	#define dREQ \	943	#define dREQ \
836	aio_req req; \	944	aio_req req; \
		945	int req_pri = next_pri; \
		946	next_pri = DEFAULT_PRI + PRI_BIAS; \
837	\	947	\
838	if (SvOK (callback) && !SvROK (callback)) \	948	if (SvOK (callback) && !SvROK (callback)) \
839	croak ("callback must be undef or of reference type"); \	949	croak ("callback must be undef or of reference type"); \
840	\	950	\
841	Newz (0, req, 1, aio_cb); \	951	Newz (0, req, 1, aio_cb); \
842	if (!req) \	952	if (!req) \
843	croak ("out of memory during aio_req allocation"); \	953	croak ("out of memory during aio_req allocation"); \
844	\	954	\
845	req->callback = newSVsv (callback)	955	req->callback = newSVsv (callback); \
		956	req->pri = req_pri
846		957
847	#define REQ_SEND \	958	#define REQ_SEND \
848	req_send (req); \	959	req_send (req); \
849	\	960	\
850	if (GIMME_V != G_VOID) \	961	if (GIMME_V != G_VOID) \
851	XPUSHs (req_sv (req));	962	XPUSHs (req_sv (req, AIO_REQ_KLASS));
852		963
853	MODULE = IO::AIO PACKAGE = IO::AIO	964	MODULE = IO::AIO PACKAGE = IO::AIO
854		965
855	PROTOTYPES: ENABLE	966	PROTOTYPES: ENABLE
856		967
…		…
1103	req->dataptr = SvPVbyte_nolen (req->data);	1214	req->dataptr = SvPVbyte_nolen (req->data);
1104		1215
1105	REQ_SEND;	1216	REQ_SEND;
1106	}	1217	}
1107		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
1108	#if 0	1260	#if 0
1109		1261
1110	# undocumented, because it does not cancel active requests
1111	void	1262	void
1112	cancel_most_requests ()	1263	aio_pri (int pri = DEFAULT_PRI)
1113	PROTOTYPE:	1264	CODE:
1114	CODE:	1265	if (pri < PRI_MIN) pri = PRI_MIN;
1115	{	1266	if (pri > PRI_MAX) pri = PRI_MAX;
1116	aio_req *req;	1267	next_pri = pri + PRI_BIAS;
1117
1118	pthread_mutex_lock (&reqlock);
1119	for (req = reqs; req; req = req->next)
1120	req->flags \|= 1;
1121	pthread_mutex_unlock (&reqlock);
1122
1123	pthread_mutex_lock (&reslock);
1124	for (req = ress; req; req = req->next)
1125	req->flags \|= 1;
1126	pthread_mutex_unlock (&reslock);
1127	}
1128		1268
1129	#endif	1269	#endif
1130		1270
1131	void	1271	void
1132	flush ()	1272	flush ()
…		…
1177	CODE:	1317	CODE:
1178	RETVAL = nreqs;	1318	RETVAL = nreqs;
1179	OUTPUT:	1319	OUTPUT:
1180	RETVAL	1320	RETVAL
1181		1321
		1322	PROTOTYPES: DISABLE
		1323
1182	MODULE = IO::AIO PACKAGE = IO::AIO::CB	1324	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1183		1325
1184	void	1326	void
1185	cancel (aio_req_ornot req)	1327	cancel (aio_req_ornot req)
1186	PROTOTYPE:	1328	PROTOTYPE:
1187	CODE:	1329	CODE:
1188	req->cancelled = 1;	1330	req_cancel (req);
1189		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 1.43 by root, Sat Oct 21 23:06:04 2006 UTC vs. Revision 1.61 by root, Mon Oct 23 22:44:21 2006 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.43 by root, Sat Oct 21 23:06:04 2006 UTC vs.
Revision 1.61 by root, Mon Oct 23 22:44:21 2006 UTC