[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 1.70 by root, Tue Oct 24 15:15:56 2006 UTC

…		…
		1	/* solaris */
		2	#define _POSIX_PTHREAD_SEMANTICS 1
		3
		4	#if __linux
		5	# define _GNU_SOURCE
		6	#endif
		7
1	#define _REENTRANT 1	8	#define _REENTRANT 1
		9
2	#include <errno.h>	10	#include <errno.h>
3		11
4	#include "EXTERN.h"	12	#include "EXTERN.h"
5	#include "perl.h"	13	#include "perl.h"
6	#include "XSUB.h"	14	#include "XSUB.h"
8	#include "autoconf/config.h"	16	#include "autoconf/config.h"
9		17
10	#include <pthread.h>	18	#include <pthread.h>
11		19
12	#include <stddef.h>	20	#include <stddef.h>
		21	#include <errno.h>
		22	#include <sys/time.h>
		23	#include <sys/select.h>
13	#include <sys/types.h>	24	#include <sys/types.h>
14	#include <sys/stat.h>	25	#include <sys/stat.h>
15	#include <limits.h>	26	#include <limits.h>
16	#include <unistd.h>	27	#include <unistd.h>
17	#include <fcntl.h>	28	#include <fcntl.h>
…		…
31	# else	42	# else
32	# error sendfile support requested but not available	43	# error sendfile support requested but not available
33	# endif	44	# endif
34	#endif	45	#endif
35		46
		47	/* used for struct dirent, AIX doesn't provide it */
		48	#ifndef NAME_MAX
		49	# define NAME_MAX 4096
		50	#endif
		51
36	#if __ia64	52	#if __ia64
37	# define STACKSIZE 65536	53	# define STACKSIZE 65536
		54	#elif __i386 \|\| __x86_64 /* 16k is unreasonably high :( */
		55	# define STACKSIZE PTHREAD_STACK_MIN
38	#else	56	#else
39	# define STACKSIZE 8192	57	# define STACKSIZE 16384
40	#endif	58	#endif
		59
		60	/* buffer size for various temporary buffers */
		61	#define AIO_BUFSIZE 65536
		62
		63	#define dBUF \
		64	char *aio_buf = malloc (AIO_BUFSIZE); \
		65	if (!aio_buf) \
		66	return -1;
		67
		68	#define fBUF free (aio_buf)
41		69
42	enum {	70	enum {
43	REQ_QUIT,	71	REQ_QUIT,
44	REQ_OPEN, REQ_CLOSE,	72	REQ_OPEN, REQ_CLOSE,
45	REQ_READ, REQ_WRITE, REQ_READAHEAD,	73	REQ_READ, REQ_WRITE, REQ_READAHEAD,
46	REQ_SENDFILE,	74	REQ_SENDFILE,
47	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	75	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
48	REQ_FSYNC, REQ_FDATASYNC,	76	REQ_FSYNC, REQ_FDATASYNC,
49	REQ_UNLINK, REQ_RMDIR,	77	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
50	REQ_READDIR,	78	REQ_READDIR,
51	REQ_SYMLINK,	79	REQ_LINK, REQ_SYMLINK,
		80	REQ_GROUP, REQ_NOP,
		81	REQ_BUSY,
52	};	82	};
53		83
		84	#define AIO_REQ_KLASS "IO::AIO::REQ"
		85	#define AIO_GRP_KLASS "IO::AIO::GRP"
		86
54	typedef struct aio_cb {	87	typedef struct aio_cb
		88	{
55	struct aio_cb *volatile next;	89	struct aio_cb *volatile next;
56		90
57	int type;	91	SV data, callback;
58		92	SV fh, fh2;
59	/* should receive a cleanup, with unions */	93	void dataptr, data2ptr;
60	int fd, fd2;	94	Stat_t *statdata;
61	off_t offset;	95	off_t offset;
62	size_t length;	96	size_t length;
63	ssize_t result;	97	ssize_t result;
		98
		99	STRLEN dataoffset;
		100	int type;
		101	int fd, fd2;
		102	int errorno;
64	mode_t mode; /* open */	103	mode_t mode; /* open */
65	int errorno;
66	SV data, callback;
67	SV fh, fh2;
68	void dataptr, data2ptr;
69	STRLEN dataoffset;
70		104
71	Stat_t *statdata;	105	unsigned char flags;
		106	unsigned char pri;
		107
		108	SV self; / the perl counterpart of this request, if any */
		109	struct aio_cb grp, grp_prev, grp_next, grp_first;
72	} aio_cb;	110	} aio_cb;
73		111
		112	enum {
		113	FLAG_CANCELLED = 0x01,
		114	};
		115
74	typedef aio_cb *aio_req;	116	typedef aio_cb *aio_req;
		117	typedef aio_cb *aio_req_ornot;
		118
		119	enum {
		120	PRI_MIN = -4,
		121	PRI_MAX = 4,
		122
		123	DEFAULT_PRI = 0,
		124	PRI_BIAS = -PRI_MIN,
		125	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
		126	};
		127
		128	static int next_pri = DEFAULT_PRI + PRI_BIAS;
75		129
76	static int started, wanted;	130	static int started, wanted;
77	static volatile int nreqs;	131	static volatile int nreqs;
78	static int max_outstanding = 1<<30;	132	static int max_outstanding = 1<<30;
79	static int respipe [2];	133	static int respipe [2];
80		134
		135	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
		136	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
		137	#else
		138	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
		139	#endif
		140
81	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	141	static pthread_mutex_t reslock = AIO_MUTEX_INIT;
82	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	142	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
83	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	143	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
84		144
85	static volatile aio_req reqs, reqe; /* queue start, queue end */	145	/*
86	static volatile aio_req ress, rese; /* queue start, queue end */	146	* a somewhat faster data structure might be nice, but
		147	* with 8 priorities this actually needs <20 insns
		148	* per shift, the most expensive operation.
		149	*/
		150	typedef struct {
		151	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
		152	int size;
		153	} reqq;
87		154
		155	static reqq req_queue;
		156	static reqq res_queue;
		157
		158	int reqq_push (reqq *q, aio_req req)
		159	{
		160	int pri = req->pri;
		161	req->next = 0;
		162
		163	if (q->qe[pri])
		164	{
		165	q->qe[pri]->next = req;
		166	q->qe[pri] = req;
		167	}
		168	else
		169	q->qe[pri] = q->qs[pri] = req;
		170
		171	return q->size++;
		172	}
		173
		174	aio_req reqq_shift (reqq *q)
		175	{
		176	int pri;
		177
		178	if (!q->size)
		179	return 0;
		180
		181	--q->size;
		182
		183	for (pri = NUM_PRI; pri--; )
		184	{
		185	aio_req req = q->qs[pri];
		186
		187	if (req)
		188	{
		189	if (!(q->qs[pri] = req->next))
		190	q->qe[pri] = 0;
		191
		192	return req;
		193	}
		194	}
		195
		196	abort ();
		197	}
		198
		199	static void req_invoke (aio_req req);
		200	static void req_free (aio_req req);
		201
		202	/* must be called at most once */
		203	static SV req_sv (aio_req req, const char klass)
		204	{
		205	if (!req->self)
		206	{
		207	req->self = (SV *)newHV ();
		208	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		209	}
		210
		211	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
		212	}
		213
		214	static aio_req SvAIO_REQ (SV *sv)
		215	{
		216	MAGIC *mg;
		217
		218	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
		219	croak ("object of class " AIO_REQ_KLASS " expected");
		220
		221	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
		222
		223	return mg ? (aio_req)mg->mg_ptr : 0;
		224	}
		225
		226	static void aio_grp_feed (aio_req grp)
		227	{
		228	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
		229	{
		230	int old_len = grp->length;
		231
		232	if (grp->fh2 && SvOK (grp->fh2))
		233	{
		234	dSP;
		235
		236	ENTER;
		237	SAVETMPS;
		238	PUSHMARK (SP);
		239	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		240	PUTBACK;
		241	call_sv (grp->fh2, G_VOID \| G_EVAL \| G_KEEPERR);
		242	SPAGAIN;
		243	FREETMPS;
		244	LEAVE;
		245	}
		246
		247	/* stop if no progress has been made */
		248	if (old_len == grp->length)
		249	{
		250	SvREFCNT_dec (grp->fh2);
		251	grp->fh2 = 0;
		252	break;
		253	}
		254	}
		255	}
		256
		257	static void aio_grp_dec (aio_req grp)
		258	{
		259	--grp->length;
		260
		261	/* call feeder, if applicable */
		262	aio_grp_feed (grp);
		263
		264	/* finish, if done */
		265	if (!grp->length && grp->fd)
		266	{
		267	req_invoke (grp);
		268	req_free (grp);
		269	}
		270	}
		271
		272	static void poll_wait ()
		273	{
		274	fd_set rfd;
		275
		276	while (nreqs)
		277	{
		278	int size;
		279	#if !(__i386 \|\| __x86_64) /* safe without sempahore on this archs */
		280	pthread_mutex_lock (&reslock);
		281	#endif
		282	size = res_queue.size;
		283	#if !(__i386 \|\| __x86_64) /* safe without sempahore on this archs */
		284	pthread_mutex_unlock (&reslock);
		285	#endif
		286
		287	if (size)
		288	return;
		289
		290	FD_ZERO(&rfd);
		291	FD_SET(respipe [0], &rfd);
		292
		293	select (respipe [0] + 1, &rfd, 0, 0, 0);
		294	}
		295	}
		296
		297	static void req_invoke (aio_req req)
		298	{
		299	dSP;
		300
		301	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
		302	{
		303	errno = req->errorno;
		304
		305	ENTER;
		306	SAVETMPS;
		307	PUSHMARK (SP);
		308	EXTEND (SP, 1);
		309
		310	switch (req->type)
		311	{
		312	case REQ_READDIR:
		313	{
		314	SV *rv = &PL_sv_undef;
		315
		316	if (req->result >= 0)
		317	{
		318	char *buf = req->data2ptr;
		319	AV *av = newAV ();
		320
		321	while (req->result)
		322	{
		323	SV *sv = newSVpv (buf, 0);
		324
		325	av_push (av, sv);
		326	buf += SvCUR (sv) + 1;
		327	req->result--;
		328	}
		329
		330	rv = sv_2mortal (newRV_noinc ((SV *)av));
		331	}
		332
		333	PUSHs (rv);
		334	}
		335	break;
		336
		337	case REQ_OPEN:
		338	{
		339	/* convert fd to fh */
		340	SV *fh;
		341
		342	PUSHs (sv_2mortal (newSViv (req->result)));
		343	PUTBACK;
		344	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		345	SPAGAIN;
		346
		347	fh = SvREFCNT_inc (POPs);
		348
		349	PUSHMARK (SP);
		350	XPUSHs (sv_2mortal (fh));
		351	}
		352	break;
		353
		354	case REQ_GROUP:
		355	req->fd = 2; /* mark group as finished */
		356
		357	if (req->data)
		358	{
		359	int i;
		360	AV av = (AV )req->data;
		361
		362	EXTEND (SP, AvFILL (av) + 1);
		363	for (i = 0; i <= AvFILL (av); ++i)
		364	PUSHs (*av_fetch (av, i, 0));
		365	}
		366	break;
		367
		368	case REQ_NOP:
		369	case REQ_BUSY:
		370	break;
		371
		372	default:
		373	PUSHs (sv_2mortal (newSViv (req->result)));
		374	break;
		375	}
		376
		377
		378	PUTBACK;
		379	call_sv (req->callback, G_VOID \| G_EVAL);
		380	SPAGAIN;
		381
		382	FREETMPS;
		383	LEAVE;
		384	}
		385
		386	if (req->grp)
		387	{
		388	aio_req grp = req->grp;
		389
		390	/* unlink request */
		391	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		392	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		393
		394	if (grp->grp_first == req)
		395	grp->grp_first = req->grp_next;
		396
		397	aio_grp_dec (grp);
		398	}
		399
		400	if (SvTRUE (ERRSV))
		401	{
		402	req_free (req);
		403	croak (0);
		404	}
		405	}
		406
88	static void free_req (aio_req req)	407	static void req_free (aio_req req)
89	{	408	{
90	if (req->data)	409	if (req->self)
		410	{
		411	sv_unmagic (req->self, PERL_MAGIC_ext);
		412	SvREFCNT_dec (req->self);
		413	}
		414
91	SvREFCNT_dec (req->data);	415	SvREFCNT_dec (req->data);
92
93	if (req->fh)
94	SvREFCNT_dec (req->fh);	416	SvREFCNT_dec (req->fh);
95
96	if (req->fh2)
97	SvREFCNT_dec (req->fh2);	417	SvREFCNT_dec (req->fh2);
98
99	if (req->statdata)
100	Safefree (req->statdata);
101
102	if (req->callback)
103	SvREFCNT_dec (req->callback);	418	SvREFCNT_dec (req->callback);
		419	Safefree (req->statdata);
104		420
105	if (req->type == REQ_READDIR && req->result >= 0)	421	if (req->type == REQ_READDIR && req->result >= 0)
106	free (req->data2ptr);	422	free (req->data2ptr);
107		423
108	Safefree (req);	424	Safefree (req);
109	}	425	}
110		426
111	static void	427	static void req_cancel (aio_req req)
112	poll_wait ()
113	{	428	{
114	if (nreqs && !ress)	429	req->flags \|= FLAG_CANCELLED;
115	{
116	fd_set rfd;
117	FD_ZERO(&rfd);
118	FD_SET(respipe [0], &rfd);
119		430
120	select (respipe [0] + 1, &rfd, 0, 0, 0);	431	if (req->type == REQ_GROUP)
121	}	432	{
122	}	433	aio_req sub;
123		434
124	static int	435	for (sub = req->grp_first; sub; sub = sub->grp_next)
125	poll_cb ()	436	req_cancel (sub);
		437	}
		438	}
		439
		440	static int poll_cb ()
126	{	441	{
127	dSP;	442	dSP;
128	int count = 0;	443	int count = 0;
129	int do_croak = 0;	444	int do_croak = 0;
130	aio_req req;	445	aio_req req;
131		446
132	for (;;)	447	for (;;)
133	{	448	{
134	pthread_mutex_lock (&reslock);	449	pthread_mutex_lock (&reslock);
135	req = ress;	450	req = reqq_shift (&res_queue);
136		451
137	if (req)	452	if (req)
138	{	453	{
139	ress = req->next;
140
141	if (!ress)	454	if (!res_queue.size)
142	{	455	{
143	/* read any signals sent by the worker threads */	456	/* read any signals sent by the worker threads */
144	char buf [32];	457	char buf [32];
145	while (read (respipe [0], buf, 32) == 32)	458	while (read (respipe [0], buf, 32) == 32)
146	;	459	;
147
148	rese = 0;
149	}	460	}
150	}	461	}
151		462
152	pthread_mutex_unlock (&reslock);	463	pthread_mutex_unlock (&reslock);
153		464
154	if (!req)	465	if (!req)
155	break;	466	break;
156		467
157	nreqs--;	468	--nreqs;
158		469
159	if (req->type == REQ_QUIT)	470	if (req->type == REQ_QUIT)
160	started--;	471	started--;
		472	else if (req->type == REQ_GROUP && req->length)
		473	{
		474	req->fd = 1; /* mark request as delayed */
		475	continue;
		476	}
161	else	477	else
162	{	478	{
163	int errorno = errno;
164	errno = req->errorno;
165
166	if (req->type == REQ_READ)	479	if (req->type == REQ_READ)
167	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	480	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
168		481
169	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	482	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
170	SvREADONLY_off (req->data);	483	SvREADONLY_off (req->data);
…		…
174	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	487	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
175	PL_laststatval = req->result;	488	PL_laststatval = req->result;
176	PL_statcache = *(req->statdata);	489	PL_statcache = *(req->statdata);
177	}	490	}
178		491
179	ENTER;	492	req_invoke (req);
180	PUSHMARK (SP);
181		493
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++;	494	count++;
242	}	495	}
243		496
244	free_req (req);	497	req_free (req);
245	}	498	}
246		499
247	return count;	500	return count;
248	}	501	}
249		502
250	static void aio_proc(void arg);	503	static void aio_proc(void arg);
251		504
252	static void
253	start_thread (void)	505	static void start_thread (void)
254	{	506	{
255	sigset_t fullsigset, oldsigset;	507	sigset_t fullsigset, oldsigset;
256	pthread_t tid;	508	pthread_t tid;
257	pthread_attr_t attr;	509	pthread_attr_t attr;
258		510
…		…
267	started++;	519	started++;
268		520
269	sigprocmask (SIG_SETMASK, &oldsigset, 0);	521	sigprocmask (SIG_SETMASK, &oldsigset, 0);
270	}	522	}
271		523
272	static void	524	static void req_send (aio_req req)
273	send_req (aio_req req)
274	{	525	{
275	while (started < wanted && nreqs >= started)	526	while (started < wanted && nreqs >= started)
276	start_thread ();	527	start_thread ();
277		528
278	nreqs++;	529	++nreqs;
279		530
280	pthread_mutex_lock (&reqlock);	531	pthread_mutex_lock (&reqlock);
281		532	reqq_push (&req_queue, req);
282	req->next = 0;
283
284	if (reqe)
285	{
286	reqe->next = req;
287	reqe = req;
288	}
289	else
290	reqe = reqs = req;
291
292	pthread_cond_signal (&reqwait);	533	pthread_cond_signal (&reqwait);
293	pthread_mutex_unlock (&reqlock);	534	pthread_mutex_unlock (&reqlock);
294		535
295	if (nreqs > max_outstanding)	536	if (nreqs > max_outstanding)
296	for (;;)	537	for (;;)
…		…
302		543
303	poll_wait ();	544	poll_wait ();
304	}	545	}
305	}	546	}
306		547
307	static void	548	static void end_thread (void)
308	end_thread (void)
309	{	549	{
310	aio_req req;	550	aio_req req;
		551
311	Newz (0, req, 1, aio_cb);	552	Newz (0, req, 1, aio_cb);
		553
312	req->type = REQ_QUIT;	554	req->type = REQ_QUIT;
		555	req->pri = PRI_MAX + PRI_BIAS;
313		556
314	send_req (req);	557	req_send (req);
315	}	558	}
316		559
317	static void min_parallel (int nthreads)	560	static void min_parallel (int nthreads)
318	{	561	{
319	if (wanted < nthreads)	562	if (wanted < nthreads)
…		…
364	* normal read/write by using a mutex. slows down execution a lot,	607	* normal read/write by using a mutex. slows down execution a lot,
365	* but that's your problem, not mine.	608	* but that's your problem, not mine.
366	*/	609	*/
367	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	610	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
368		611
369	static ssize_t	612	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	{	613	{
372	ssize_t res;	614	ssize_t res;
373	off_t ooffset;	615	off_t ooffset;
374		616
375	pthread_mutex_lock (&preadwritelock);	617	pthread_mutex_lock (&preadwritelock);
…		…
380	pthread_mutex_unlock (&preadwritelock);	622	pthread_mutex_unlock (&preadwritelock);
381		623
382	return res;	624	return res;
383	}	625	}
384		626
385	static ssize_t
386	pwrite (int fd, void *buf, size_t count, off_t offset)	627	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
387	{	628	{
388	ssize_t res;	629	ssize_t res;
389	off_t ooffset;	630	off_t ooffset;
390		631
391	pthread_mutex_lock (&preadwritelock);	632	pthread_mutex_lock (&preadwritelock);
…		…
404	#endif	645	#endif
405		646
406	#if !HAVE_READAHEAD	647	#if !HAVE_READAHEAD
407	# define readahead aio_readahead	648	# define readahead aio_readahead
408		649
409	static ssize_t
410	readahead (int fd, off_t offset, size_t count)	650	static ssize_t readahead (int fd, off_t offset, size_t count)
411	{	651	{
412	char readahead_buf[4096];	652	dBUF;
413		653
414	while (count > 0)	654	while (count > 0)
415	{	655	{
416	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);	656	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
417		657
418	pread (fd, readahead_buf, len, offset);	658	pread (fd, aio_buf, len, offset);
419	offset += len;	659	offset += len;
420	count -= len;	660	count -= len;
421	}	661	}
422		662
		663	fBUF;
		664
423	errno = 0;	665	errno = 0;
424	}	666	}
425	#endif	667	#endif
426		668
427	#if !HAVE_READDIR_R	669	#if !HAVE_READDIR_R
428	# define readdir_r aio_readdir_r	670	# define readdir_r aio_readdir_r
429		671
430	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	672	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
431		673
432	static int
433	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	674	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
434	{	675	{
435	struct dirent *e;	676	struct dirent *e;
436	int errorno;	677	int errorno;
437		678
438	pthread_mutex_lock (&readdirlock);	679	pthread_mutex_lock (&readdirlock);
…		…
454	return e ? 0 : -1;	695	return e ? 0 : -1;
455	}	696	}
456	#endif	697	#endif
457		698
458	/* sendfile always needs emulation */	699	/* sendfile always needs emulation */
459	static ssize_t
460	sendfile_ (int ofd, int ifd, off_t offset, size_t count)	700	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
461	{	701	{
462	ssize_t res;	702	ssize_t res;
463		703
464	if (!count)	704	if (!count)
465	return 0;	705	return 0;
…		…
499		739
500	if (res < 0 && sbytes)	740	if (res < 0 && sbytes)
501	res = sbytes;	741	res = sbytes;
502	}	742	}
503		743
		744	# endif
504	# else	745	#else
505	res = -1;	746	res = -1;
506	errno = ENOSYS;	747	errno = ENOSYS;
507	# endif
508	#endif	748	#endif
509		749
510	if (res < 0	750	if (res < 0
511	&& (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK	751	&& (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK
512	#if __solaris	752	#if __solaris
…		…
514	#endif	754	#endif
515	)	755	)
516	)	756	)
517	{	757	{
518	/* emulate sendfile. this is a major pain in the ass */	758	/* emulate sendfile. this is a major pain in the ass */
519	char buf[4096];	759	dBUF;
		760
520	res = 0;	761	res = 0;
521		762
522	for (;;)	763	while (count)
523	{	764	{
524	ssize_t cnt;	765	ssize_t cnt;
525		766
526	cnt = pread (ifd, buf, 4096, offset);	767	cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
527		768
528	if (cnt <= 0)	769	if (cnt <= 0)
529	{	770	{
530	if (cnt && !res) res = -1;	771	if (cnt && !res) res = -1;
531	break;	772	break;
532	}	773	}
533		774
534	cnt = write (ofd, buf, cnt);	775	cnt = write (ofd, aio_buf, cnt);
535		776
536	if (cnt <= 0)	777	if (cnt <= 0)
537	{	778	{
538	if (cnt && !res) res = -1;	779	if (cnt && !res) res = -1;
539	break;	780	break;
540	}	781	}
541		782
542	offset += cnt;	783	offset += cnt;
543	res += cnt;	784	res += cnt;
		785	count -= cnt;
544	}	786	}
		787
		788	fBUF;
545	}	789	}
546		790
547	return res;	791	return res;
548	}	792	}
549		793
550	/* read a full directory */	794	/* read a full directory */
551	static int
552	scandir_ (const char path, void *namesp)	795	static int scandir_ (const char path, void *namesp)
553	{	796	{
554	DIR *dirp = opendir (path);	797	DIR *dirp;
555	union	798	union
556	{	799	{
557	struct dirent d;	800	struct dirent d;
558	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	801	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
559	} u;	802	} *u;
560	struct dirent *entp;	803	struct dirent *entp;
561	char name, names;	804	char name, names;
562	int memlen = 4096;	805	int memlen = 4096;
563	int memofs = 0;	806	int memofs = 0;
564	int res = 0;	807	int res = 0;
565	int errorno;	808	int errorno;
566		809
		810	dirp = opendir (path);
567	if (!dirp)	811	if (!dirp)
568	return -1;	812	return -1;
569		813
		814	u = malloc (sizeof (*u));
570	names = malloc (memlen);	815	names = malloc (memlen);
571		816
		817	if (u && names)
572	for (;;)	818	for (;;)
573	{	819	{
		820	errno = 0;
574	errno = 0, readdir_r (dirp, &u.d, &entp);	821	readdir_r (dirp, &u->d, &entp);
575		822
576	if (!entp)	823	if (!entp)
577	break;	824	break;
578		825
579	name = entp->d_name;	826	name = entp->d_name;
580		827
581	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))	828	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))
582	{	829	{
583	int len = strlen (name) + 1;	830	int len = strlen (name) + 1;
584		831
585	res++;	832	res++;
586		833
587	while (memofs + len > memlen)	834	while (memofs + len > memlen)
588	{	835	{
589	memlen *= 2;	836	memlen *= 2;
590	names = realloc (names, memlen);	837	names = realloc (names, memlen);
591	if (!names)	838	if (!names)
592	break;	839	break;
593	}	840	}
594		841
595	memcpy (names + memofs, name, len);	842	memcpy (names + memofs, name, len);
596	memofs += len;	843	memofs += len;
597	}	844	}
598	}	845	}
599		846
600	errorno = errno;	847	errorno = errno;
		848	free (u);
601	closedir (dirp);	849	closedir (dirp);
602		850
603	if (errorno)	851	if (errorno)
604	{	852	{
605	free (names);	853	free (names);
…		…
611	return res;	859	return res;
612	}	860	}
613		861
614	/*****************************************************************************/	862	/*****************************************************************************/
615		863
616	static void *
617	aio_proc (void *thr_arg)	864	static void aio_proc (void thr_arg)
618	{	865	{
619	aio_req req;	866	aio_req req;
620	int type;	867	int type;
621		868
622	do	869	do
623	{	870	{
624	pthread_mutex_lock (&reqlock);	871	pthread_mutex_lock (&reqlock);
625		872
626	for (;;)	873	for (;;)
627	{	874	{
628	req = reqs;	875	req = reqq_shift (&req_queue);
629
630	if (reqs)
631	{
632	reqs = reqs->next;
633	if (!reqs) reqe = 0;
634	}
635		876
636	if (req)	877	if (req)
637	break;	878	break;
638		879
639	pthread_cond_wait (&reqwait, &reqlock);	880	pthread_cond_wait (&reqwait, &reqlock);
640	}	881	}
641		882
642	pthread_mutex_unlock (&reqlock);	883	pthread_mutex_unlock (&reqlock);
643		884
644	errno = 0; /* strictly unnecessary */	885	errno = 0; /* strictly unnecessary */
		886	type = req->type; /* remember type for QUIT check */
645		887
646	type = req->type;	888	if (!(req->flags & FLAG_CANCELLED))
647
648	switch (type)	889	switch (type)
649	{	890	{
650	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	891	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;	892	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
652		893
653	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	894	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;	895	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
655		896
656	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	897	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
657	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	898	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
658	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	899	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
659		900
660	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	901	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
661	case REQ_CLOSE: req->result = close (req->fd); break;	902	case REQ_CLOSE: req->result = close (req->fd); break;
662	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	903	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
663	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	904	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		905	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
		906	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
664	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	907	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
665		908
666	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	909	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
667	case REQ_FSYNC: req->result = fsync (req->fd); break;	910	case REQ_FSYNC: req->result = fsync (req->fd); break;
668	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	911	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
669		912
		913	case REQ_BUSY:
		914	{
		915	struct timeval tv;
		916
		917	tv.tv_sec = req->fd;
		918	tv.tv_usec = req->fd2;
		919
		920	req->result = select (0, 0, 0, 0, &tv);
		921	}
		922
		923	case REQ_GROUP:
		924	case REQ_NOP:
670	case REQ_QUIT:	925	case REQ_QUIT:
671	break;	926	break;
672		927
673	default:	928	default:
674	req->result = ENOSYS;	929	req->result = ENOSYS;
675	break;	930	break;
676	}	931	}
677		932
678	req->errorno = errno;	933	req->errorno = errno;
679		934
680	pthread_mutex_lock (&reslock);	935	pthread_mutex_lock (&reslock);
681		936
682	req->next = 0;	937	if (!reqq_push (&res_queue, req))
683
684	if (rese)
685	{
686	rese->next = req;
687	rese = req;
688	}
689	else
690	{
691	rese = ress = req;
692
693	/* write a dummy byte to the pipe so fh becomes ready */	938	/* write a dummy byte to the pipe so fh becomes ready */
694	write (respipe [1], &respipe, 1);	939	write (respipe [1], &respipe, 1);
695	}
696		940
697	pthread_mutex_unlock (&reslock);	941	pthread_mutex_unlock (&reslock);
698	}	942	}
699	while (type != REQ_QUIT);	943	while (type != REQ_QUIT);
700		944
…		…
731	{	975	{
732	aio_req prv;	976	aio_req prv;
733		977
734	started = 0;	978	started = 0;
735		979
736	while (reqs)	980	while (prv = reqq_shift (&req_queue))
737	{
738	prv = reqs;
739	reqs = prv->next;
740	free_req (prv);	981	req_free (prv);
741	}
742		982
743	reqs = reqe = 0;	983	while (prv = reqq_shift (&res_queue))
744
745	while (ress)
746	{
747	prv = ress;
748	ress = prv->next;
749	free_req (prv);	984	req_free (prv);
750	}	985
751
752	ress = rese = 0;
753
754	close (respipe [0]);	986	close (respipe [0]);
755	close (respipe [1]);	987	close (respipe [1]);
756	create_pipe ();	988	create_pipe ();
757		989
758	atfork_parent ();	990	atfork_parent ();
759	}	991	}
760		992
761	#define dREQ \	993	#define dREQ \
762	aio_req req; \	994	aio_req req; \
		995	int req_pri = next_pri; \
		996	next_pri = DEFAULT_PRI + PRI_BIAS; \
763	\	997	\
764	if (SvOK (callback) && !SvROK (callback)) \	998	if (SvOK (callback) && !SvROK (callback)) \
765	croak ("clalback must be undef or of reference type"); \	999	croak ("callback must be undef or of reference type"); \
766	\	1000	\
767	Newz (0, req, 1, aio_cb); \	1001	Newz (0, req, 1, aio_cb); \
768	if (!req) \	1002	if (!req) \
769	croak ("out of memory during aio_req allocation"); \	1003	croak ("out of memory during aio_req allocation"); \
770	\	1004	\
771	req->callback = newSVsv (callback);	1005	req->callback = newSVsv (callback); \
		1006	req->pri = req_pri
		1007
		1008	#define REQ_SEND \
		1009	req_send (req); \
		1010	\
		1011	if (GIMME_V != G_VOID) \
		1012	XPUSHs (req_sv (req, AIO_REQ_KLASS));
772		1013
773	MODULE = IO::AIO PACKAGE = IO::AIO	1014	MODULE = IO::AIO PACKAGE = IO::AIO
774		1015
775	PROTOTYPES: ENABLE	1016	PROTOTYPES: ENABLE
776		1017
777	BOOT:	1018	BOOT:
778	{	1019	{
		1020	HV *stash = gv_stashpv ("IO::AIO", 1);
		1021	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
		1022	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
		1023	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		1024
779	create_pipe ();	1025	create_pipe ();
780	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1026	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
781	}	1027	}
782		1028
783	void	1029	void
784	min_parallel(nthreads)	1030	min_parallel (nthreads)
785	int nthreads	1031	int nthreads
786	PROTOTYPE: $	1032	PROTOTYPE: $
787		1033
788	void	1034	void
789	max_parallel(nthreads)	1035	max_parallel (nthreads)
790	int nthreads	1036	int nthreads
791	PROTOTYPE: $	1037	PROTOTYPE: $
792		1038
793	int	1039	int
794	max_outstanding(nreqs)	1040	max_outstanding (nreqs)
795	int nreqs	1041	int nreqs
796	PROTOTYPE: $	1042	PROTOTYPE: $
797	CODE:	1043	CODE:
798	RETVAL = max_outstanding;	1044	RETVAL = max_outstanding;
799	max_outstanding = nreqs;	1045	max_outstanding = nreqs;
800		1046
801	void	1047	void
802	aio_open(pathname,flags,mode,callback=&PL_sv_undef)	1048	aio_open (pathname,flags,mode,callback=&PL_sv_undef)
803	SV * pathname	1049	SV * pathname
804	int flags	1050	int flags
805	int mode	1051	int mode
806	SV * callback	1052	SV * callback
807	PROTOTYPE: $$$;$	1053	PROTOTYPE: $$$;$
808	CODE:	1054	PPCODE:
809	{	1055	{
810	dREQ;	1056	dREQ;
811		1057
812	req->type = REQ_OPEN;	1058	req->type = REQ_OPEN;
813	req->data = newSVsv (pathname);	1059	req->data = newSVsv (pathname);
814	req->dataptr = SvPVbyte_nolen (req->data);	1060	req->dataptr = SvPVbyte_nolen (req->data);
815	req->fd = flags;	1061	req->fd = flags;
816	req->mode = mode;	1062	req->mode = mode;
817		1063
818	send_req (req);	1064	REQ_SEND;
819	}	1065	}
820		1066
821	void	1067	void
822	aio_close(fh,callback=&PL_sv_undef)	1068	aio_close (fh,callback=&PL_sv_undef)
823	SV * fh	1069	SV * fh
824	SV * callback	1070	SV * callback
825	PROTOTYPE: $;$	1071	PROTOTYPE: $;$
826	ALIAS:	1072	ALIAS:
827	aio_close = REQ_CLOSE	1073	aio_close = REQ_CLOSE
828	aio_fsync = REQ_FSYNC	1074	aio_fsync = REQ_FSYNC
829	aio_fdatasync = REQ_FDATASYNC	1075	aio_fdatasync = REQ_FDATASYNC
830	CODE:	1076	PPCODE:
831	{	1077	{
832	dREQ;	1078	dREQ;
833		1079
834	req->type = ix;	1080	req->type = ix;
835	req->fh = newSVsv (fh);	1081	req->fh = newSVsv (fh);
836	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1082	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
837		1083
838	send_req (req);	1084	REQ_SEND (req);
839	}	1085	}
840		1086
841	void	1087	void
842	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1088	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
843	SV * fh	1089	SV * fh
844	UV offset	1090	UV offset
845	UV length	1091	UV length
846	SV * data	1092	SV * data
847	UV dataoffset	1093	UV dataoffset
848	SV * callback	1094	SV * callback
849	ALIAS:	1095	ALIAS:
850	aio_read = REQ_READ	1096	aio_read = REQ_READ
851	aio_write = REQ_WRITE	1097	aio_write = REQ_WRITE
852	PROTOTYPE: $$$$$;$	1098	PROTOTYPE: $$$$$;$
853	CODE:	1099	PPCODE:
854	{	1100	{
855	aio_req req;	1101	aio_req req;
856	STRLEN svlen;	1102	STRLEN svlen;
857	char *svptr = SvPVbyte (data, svlen);	1103	char *svptr = SvPVbyte (data, svlen);
858		1104
…		…
896	{	1142	{
897	SvREADONLY_on (data);	1143	SvREADONLY_on (data);
898	req->data2ptr = (void *)data;	1144	req->data2ptr = (void *)data;
899	}	1145	}
900		1146
901	send_req (req);	1147	REQ_SEND;
902	}	1148	}
903	}	1149	}
904		1150
905	void	1151	void
906	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1152	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
907	SV * out_fh	1153	SV * out_fh
908	SV * in_fh	1154	SV * in_fh
909	UV in_offset	1155	UV in_offset
910	UV length	1156	UV length
911	SV * callback	1157	SV * callback
912	PROTOTYPE: $$$$;$	1158	PROTOTYPE: $$$$;$
913	CODE:	1159	PPCODE:
914	{	1160	{
915	dREQ;	1161	dREQ;
916		1162
917	req->type = REQ_SENDFILE;	1163	req->type = REQ_SENDFILE;
918	req->fh = newSVsv (out_fh);	1164	req->fh = newSVsv (out_fh);
…		…
920	req->fh2 = newSVsv (in_fh);	1166	req->fh2 = newSVsv (in_fh);
921	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1167	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
922	req->offset = in_offset;	1168	req->offset = in_offset;
923	req->length = length;	1169	req->length = length;
924		1170
925	send_req (req);	1171	REQ_SEND;
926	}	1172	}
927		1173
928	void	1174	void
929	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	1175	aio_readahead (fh,offset,length,callback=&PL_sv_undef)
930	SV * fh	1176	SV * fh
931	UV offset	1177	UV offset
932	IV length	1178	IV length
933	SV * callback	1179	SV * callback
934	PROTOTYPE: $$$;$	1180	PROTOTYPE: $$$;$
935	CODE:	1181	PPCODE:
936	{	1182	{
937	dREQ;	1183	dREQ;
938		1184
939	req->type = REQ_READAHEAD;	1185	req->type = REQ_READAHEAD;
940	req->fh = newSVsv (fh);	1186	req->fh = newSVsv (fh);
941	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1187	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
942	req->offset = offset;	1188	req->offset = offset;
943	req->length = length;	1189	req->length = length;
944		1190
945	send_req (req);	1191	REQ_SEND;
946	}	1192	}
947		1193
948	void	1194	void
949	aio_stat(fh_or_path,callback=&PL_sv_undef)	1195	aio_stat (fh_or_path,callback=&PL_sv_undef)
950	SV * fh_or_path	1196	SV * fh_or_path
951	SV * callback	1197	SV * callback
952	ALIAS:	1198	ALIAS:
953	aio_stat = REQ_STAT	1199	aio_stat = REQ_STAT
954	aio_lstat = REQ_LSTAT	1200	aio_lstat = REQ_LSTAT
955	CODE:	1201	PPCODE:
956	{	1202	{
957	dREQ;	1203	dREQ;
958		1204
959	New (0, req->statdata, 1, Stat_t);	1205	New (0, req->statdata, 1, Stat_t);
960	if (!req->statdata)	1206	if (!req->statdata)
961	{	1207	{
962	free_req (req);	1208	req_free (req);
963	croak ("out of memory during aio_req->statdata allocation");	1209	croak ("out of memory during aio_req->statdata allocation");
964	}	1210	}
965		1211
966	if (SvPOK (fh_or_path))	1212	if (SvPOK (fh_or_path))
967	{	1213	{
…		…
974	req->type = REQ_FSTAT;	1220	req->type = REQ_FSTAT;
975	req->fh = newSVsv (fh_or_path);	1221	req->fh = newSVsv (fh_or_path);
976	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1222	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
977	}	1223	}
978		1224
979	send_req (req);	1225	REQ_SEND;
980	}	1226	}
981		1227
982	void	1228	void
983	aio_unlink(pathname,callback=&PL_sv_undef)	1229	aio_unlink (pathname,callback=&PL_sv_undef)
984	SV * pathname	1230	SV * pathname
985	SV * callback	1231	SV * callback
986	ALIAS:	1232	ALIAS:
987	aio_unlink = REQ_UNLINK	1233	aio_unlink = REQ_UNLINK
988	aio_rmdir = REQ_RMDIR	1234	aio_rmdir = REQ_RMDIR
		1235	aio_readdir = REQ_READDIR
989	CODE:	1236	PPCODE:
990	{	1237	{
991	dREQ;	1238	dREQ;
992		1239
993	req->type = ix;	1240	req->type = ix;
994	req->data = newSVsv (pathname);	1241	req->data = newSVsv (pathname);
995	req->dataptr = SvPVbyte_nolen (req->data);	1242	req->dataptr = SvPVbyte_nolen (req->data);
996		1243
997	send_req (req);	1244	REQ_SEND;
998	}	1245	}
999		1246
1000	void	1247	void
1001	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)	1248	aio_link (oldpath,newpath,callback=&PL_sv_undef)
1002	SV * oldpath	1249	SV * oldpath
1003	SV * newpath	1250	SV * newpath
1004	SV * callback	1251	SV * callback
		1252	ALIAS:
		1253	aio_link = REQ_LINK
		1254	aio_symlink = REQ_SYMLINK
		1255	aio_rename = REQ_RENAME
1005	CODE:	1256	PPCODE:
1006	{	1257	{
1007	dREQ;	1258	dREQ;
1008		1259
1009	req->type = REQ_SYMLINK;	1260	req->type = ix;
1010	req->fh = newSVsv (oldpath);	1261	req->fh = newSVsv (oldpath);
1011	req->data2ptr = SvPVbyte_nolen (req->fh);	1262	req->data2ptr = SvPVbyte_nolen (req->fh);
1012	req->data = newSVsv (newpath);	1263	req->data = newSVsv (newpath);
1013	req->dataptr = SvPVbyte_nolen (req->data);	1264	req->dataptr = SvPVbyte_nolen (req->data);
1014		1265
1015	send_req (req);	1266	REQ_SEND;
1016	}	1267	}
1017		1268
1018	void	1269	void
1019	aio_readdir(pathname,callback=&PL_sv_undef)	1270	aio_busy (delay,callback=&PL_sv_undef)
1020	SV * pathname	1271	double delay
1021	SV * callback	1272	SV * callback
1022	CODE:	1273	PPCODE:
1023	{	1274	{
1024	dREQ;	1275	dREQ;
1025		1276
		1277	req->type = REQ_BUSY;
		1278	req->fd = delay < 0. ? 0 : delay;
		1279	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
		1280
		1281	REQ_SEND;
		1282	}
		1283
		1284	void
		1285	aio_group (callback=&PL_sv_undef)
		1286	SV * callback
		1287	PROTOTYPE: ;$
		1288	PPCODE:
		1289	{
		1290	dREQ;
		1291
1026	req->type = REQ_READDIR;	1292	req->type = REQ_GROUP;
1027	req->data = newSVsv (pathname);	1293	req_send (req);
1028	req->dataptr = SvPVbyte_nolen (req->data);
1029
1030	send_req (req);
1031	}
1032		1294
		1295	XPUSHs (req_sv (req, AIO_GRP_KLASS));
		1296	}
		1297
1033	void	1298	void
		1299	aio_nop (callback=&PL_sv_undef)
		1300	SV * callback
		1301	PPCODE:
		1302	{
		1303	dREQ;
		1304
		1305	req->type = REQ_NOP;
		1306
		1307	REQ_SEND;
		1308	}
		1309
		1310	void
		1311	aioreq_pri (int pri = DEFAULT_PRI)
		1312	CODE:
		1313	if (pri < PRI_MIN) pri = PRI_MIN;
		1314	if (pri > PRI_MAX) pri = PRI_MAX;
		1315	next_pri = pri + PRI_BIAS;
		1316
		1317	void
		1318	aioreq_nice (int nice = 0)
		1319	CODE:
		1320	nice = next_pri - nice;
		1321	if (nice < PRI_MIN) nice = PRI_MIN;
		1322	if (nice > PRI_MAX) nice = PRI_MAX;
		1323	next_pri = nice + PRI_BIAS;
		1324
		1325	void
1034	flush()	1326	flush ()
1035	PROTOTYPE:	1327	PROTOTYPE:
1036	CODE:	1328	CODE:
1037	while (nreqs)	1329	while (nreqs)
1038	{	1330	{
1039	poll_wait ();	1331	poll_wait ();
…		…
1079	CODE:	1371	CODE:
1080	RETVAL = nreqs;	1372	RETVAL = nreqs;
1081	OUTPUT:	1373	OUTPUT:
1082	RETVAL	1374	RETVAL
1083		1375
		1376	PROTOTYPES: DISABLE
		1377
		1378	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
		1379
		1380	void
		1381	cancel (aio_req_ornot req)
		1382	CODE:
		1383	req_cancel (req);
		1384
		1385	void
		1386	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1387	CODE:
		1388	SvREFCNT_dec (req->callback);
		1389	req->callback = newSVsv (callback);
		1390
		1391	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
		1392
		1393	void
		1394	add (aio_req grp, ...)
		1395	PPCODE:
		1396	{
		1397	int i;
		1398	aio_req req;
		1399
		1400	if (grp->fd == 2)
		1401	croak ("cannot add requests to IO::AIO::GRP after the group finished");
		1402
		1403	for (i = 1; i < items; ++i )
		1404	{
		1405	if (GIMME_V != G_VOID)
		1406	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1407
		1408	req = SvAIO_REQ (ST (i));
		1409
		1410	if (req)
		1411	{
		1412	++grp->length;
		1413	req->grp = grp;
		1414
		1415	req->grp_prev = 0;
		1416	req->grp_next = grp->grp_first;
		1417
		1418	if (grp->grp_first)
		1419	grp->grp_first->grp_prev = req;
		1420
		1421	grp->grp_first = req;
		1422	}
		1423	}
		1424	}
		1425
		1426	void
		1427	result (aio_req grp, ...)
		1428	CODE:
		1429	{
		1430	int i;
		1431	AV *av = newAV ();
		1432
		1433	for (i = 1; i < items; ++i )
		1434	av_push (av, newSVsv (ST (i)));
		1435
		1436	SvREFCNT_dec (grp->data);
		1437	grp->data = (SV *)av;
		1438	}
		1439
		1440	void
		1441	limit (aio_req grp, int limit)
		1442	CODE:
		1443	grp->fd2 = limit;
		1444	aio_grp_feed (grp);
		1445
		1446	void
		1447	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1448	CODE:
		1449	{
		1450	SvREFCNT_dec (grp->fh2);
		1451	grp->fh2 = newSVsv (callback);
		1452
		1453	if (grp->fd2 <= 0)
		1454	grp->fd2 = 2;
		1455
		1456	aio_grp_feed (grp);
		1457	}
		1458

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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 1.70 by root, Tue Oct 24 15:15:56 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 1.70 by root, Tue Oct 24 15:15:56 2006 UTC