ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/IO-AIO/AIO.xs
(Generate patch)

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.22 by root, Tue Aug 16 22:22:18 2005 UTC vs.
Revision 1.116 by root, Sat May 10 19:25:33 2008 UTC

1#define _REENTRANT 1 1#include "libeio/xthread.h"
2
2#include <errno.h> 3#include <errno.h>
3 4
4#include "EXTERN.h" 5#include "EXTERN.h"
5#include "perl.h" 6#include "perl.h"
6#include "XSUB.h" 7#include "XSUB.h"
7 8
8#include "autoconf/config.h" 9#include <stddef.h>
9 10#include <stdlib.h>
11#include <errno.h>
10#include <sys/types.h> 12#include <sys/types.h>
11#include <sys/stat.h> 13#include <sys/stat.h>
12
13#include <unistd.h> 14#include <limits.h>
14#include <fcntl.h> 15#include <fcntl.h>
15#include <signal.h>
16#include <sched.h> 16#include <sched.h>
17 17
18#include <pthread.h> 18#ifdef _WIN32
19 19
20typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 20# define EIO_STRUCT_DIRENT Direntry_t
21typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 21# undef malloc
22typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 22# undef free
23 23
24#if __ia64 24// perl overrides all those nice win32 functions
25# define STACKSIZE 65536 25# undef open
26# undef read
27# undef write
28# undef send
29# undef recv
30# undef stat
31# undef fstat
32# define lstat stat
33# undef truncate
34# undef ftruncate
35# undef open
36# undef close
37# undef unlink
38# undef rmdir
39# undef rename
40# undef lseek
41
42# define chown(a,b,c) (errno = ENOSYS, -1)
43# define fchown(a,b,c) (errno = ENOSYS, -1)
44# define fchmod(a,b) (errno = ENOSYS, -1)
45# define symlink(a,b) (errno = ENOSYS, -1)
46# define readlink(a,b,c) (errno = ENOSYS, -1)
47# define mknod(a,b,c) (errno = ENOSYS, -1)
48# define truncate(a,b) (errno = ENOSYS, -1)
49# define ftruncate(fd,o) chsize ((fd), (o))
50# define fsync(fd) _commit (fd)
51# define opendir(fd) (errno = ENOSYS, 0)
52# define readdir(fd) (errno = ENOSYS, -1)
53# define closedir(fd) (errno = ENOSYS, -1)
54# define mkdir(a,b) mkdir (a)
55
26#else 56#else
27# define STACKSIZE 4096 57
58# include <sys/time.h>
59# include <sys/select.h>
60# include <unistd.h>
61# include <utime.h>
62# include <signal.h>
63# define EIO_STRUCT_DIRENT struct dirent
64
28#endif 65#endif
29 66
67#define EIO_STRUCT_STAT Stat_t
68
69/* use NV for 32 bit perls as it allows larger offsets */
70#if IVSIZE >= 8
71# define SvVAL64 SvIV
72#else
73# define SvVAL64 SvNV
74#endif
75
76static HV *stash;
77typedef SV SV8; /* byte-sv, used for argument-checking */
78
79#define AIO_REQ_KLASS "IO::AIO::REQ"
80#define AIO_GRP_KLASS "IO::AIO::GRP"
81
82#define EIO_COMMON \
83 SV *callback; \
84 SV *sv1, *sv2; \
85 STRLEN stroffset; \
86 SV *self
87
88#include "libeio/eio.h"
89
90static int req_invoke (eio_req *req);
91#define EIO_FINISH(req) req_invoke (req)
92static void aio_grp_feed (eio_req *grp);
93#define EIO_FEED(req) aio_grp_feed (req)
94static void req_destroy (eio_req *grp);
95#define EIO_DESTROY(req) req_destroy (req)
96
30enum { 97enum {
31 REQ_QUIT, 98 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
32 REQ_OPEN, REQ_CLOSE,
33 REQ_READ, REQ_WRITE, REQ_READAHEAD,
34 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35 REQ_FSYNC, REQ_FDATASYNC,
36 REQ_UNLINK, REQ_RMDIR, REQ_SYMLINK,
37 REQ_SYMLINK,
38}; 99};
39 100
40typedef struct aio_cb { 101#include "libeio/eio.c"
41 struct aio_cb *volatile next;
42 102
43 int type;
44
45 int fd;
46 off_t offset;
47 size_t length;
48 ssize_t result;
49 mode_t mode; /* open */
50 int errorno;
51 SV *data, *callback, *fh;
52 void *dataptr, *data2ptr;
53 STRLEN dataoffset;
54
55 Stat_t *statdata;
56} aio_cb;
57
58typedef aio_cb *aio_req; 103typedef eio_req *aio_req;
104typedef eio_req *aio_req_ornot;
59 105
60static int started;
61static volatile int nreqs;
62static int max_outstanding = 1<<30; 106static int max_outstanding = 0;
63static int respipe [2];
64 107
65static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 108static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;
66static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67static pthread_mutex_t frklock = PTHREAD_MUTEX_INITIALIZER;
68static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
69 109
70static volatile aio_req reqs, reqe; /* queue start, queue end */ 110static int respipe_osf [2], respipe [2] = { -1, -1 };
71static volatile aio_req ress, rese; /* queue start, queue end */
72 111
73static void 112static void req_destroy (aio_req req);
74poll_wait () 113static void req_cancel (aio_req req);
114
115static void want_poll (void)
75{ 116{
76 if (nreqs && !ress) 117 /* write a dummy byte to the pipe so fh becomes ready */
118 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
119}
120
121static void done_poll (void)
122{
123 /* read any signals sent by the worker threads */
124 char buf [4];
125 while (respipe_read (respipe [0], buf, 4) == 4)
126 ;
127}
128
129/* must be called at most once */
130static SV *req_sv (aio_req req, const char *klass)
131{
132 if (!req->self)
77 { 133 {
78 fd_set rfd; 134 req->self = (SV *)newHV ();
79 FD_ZERO(&rfd); 135 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
80 FD_SET(respipe [0], &rfd);
81
82 select (respipe [0] + 1, &rfd, 0, 0, 0);
83 } 136 }
84}
85 137
86static int 138 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
87poll_cb () 139}
140
141static aio_req SvAIO_REQ (SV *sv)
142{
143 MAGIC *mg;
144
145 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))
146 croak ("object of class " AIO_REQ_KLASS " expected");
147
148 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149
150 return mg ? (aio_req)mg->mg_ptr : 0;
151}
152
153static void aio_grp_feed (aio_req grp)
154{
155 if (grp->sv2 && SvOK (grp->sv2))
156 {
157 dSP;
158
159 ENTER;
160 SAVETMPS;
161 PUSHMARK (SP);
162 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
163 PUTBACK;
164 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165 SPAGAIN;
166 FREETMPS;
167 LEAVE;
168 }
169}
170
171static int req_invoke (eio_req *req)
88{ 172{
89 dSP; 173 dSP;
90 int count = 0;
91 aio_req req, prv;
92 174
93 pthread_mutex_lock (&reslock); 175 if (req->flags & FLAG_SV2_RO_OFF)
176 SvREADONLY_off (req->sv2);
94 177
95 { 178 if (!EIO_CANCELLED (req) && SvOK (req->callback))
96 /* read any signals sent by the worker threads */
97 char buf [32];
98 while (read (respipe [0], buf, 32) == 32)
99 ;
100 }
101
102 req = ress;
103 ress = rese = 0;
104
105 pthread_mutex_unlock (&reslock);
106
107 while (req)
108 { 179 {
109 nreqs--; 180 ENTER;
181 SAVETMPS;
182 PUSHMARK (SP);
183 EXTEND (SP, 1);
110 184
111 if (req->type == REQ_QUIT) 185 switch (req->type)
112 started--;
113 else
114 { 186 {
115 int errorno = errno; 187 case EIO_READDIR:
116 errno = req->errorno;
117
118 if (req->type == REQ_READ)
119 SvCUR_set (req->data, req->dataoffset
120 + req->result > 0 ? req->result : 0);
121
122 if (req->data)
123 SvREFCNT_dec (req->data);
124
125 if (req->fh)
126 SvREFCNT_dec (req->fh);
127
128 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
129 { 188 {
130 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 189 SV *rv = &PL_sv_undef;
131 PL_laststatval = req->result;
132 PL_statcache = *(req->statdata);
133 190
134 Safefree (req->statdata); 191 if (req->result >= 0)
192 {
193 int i;
194 char *buf = req->ptr2;
195 AV *av = newAV ();
196
197 av_extend (av, req->result - 1);
198
199 for (i = 0; i < req->result; ++i)
200 {
201 SV *sv = newSVpv (buf, 0);
202
203 av_store (av, i, sv);
204 buf += SvCUR (sv) + 1;
205 }
206
207 rv = sv_2mortal (newRV_noinc ((SV *)av));
208 }
209
210 PUSHs (rv);
135 } 211 }
212 break;
136 213
137 ENTER; 214 case EIO_OPEN:
138 PUSHMARK (SP);
139 XPUSHs (sv_2mortal (newSViv (req->result)));
140
141 if (req->type == REQ_OPEN)
142 { 215 {
143 /* convert fd to fh */ 216 /* convert fd to fh */
144 SV *fh; 217 SV *fh = &PL_sv_undef;
145 218
146 PUTBACK; 219 if (req->result >= 0)
147 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 220 {
148 SPAGAIN; 221 GV *gv = (GV *)sv_newmortal ();
222 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
223 char sym [64];
224 int symlen;
225
226 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);
227 gv_init (gv, stash, sym, symlen, 0);
149 228
150 fh = SvREFCNT_inc (POPs); 229 symlen = snprintf (
230 sym,
231 sizeof (sym),
232 "%s&=%d",
233 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
234 req->result
235 );
151 236
237 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
238 fh = (SV *)gv;
239 }
240
152 PUSHMARK (SP); 241 PUSHs (fh);
153 XPUSHs (sv_2mortal (fh));
154 } 242 }
155
156 if (SvOK (req->callback))
157 {
158 PUTBACK;
159 call_sv (req->callback, G_VOID | G_EVAL);
160 SPAGAIN;
161 }
162
163 LEAVE;
164
165 if (req->callback)
166 SvREFCNT_dec (req->callback);
167
168 errno = errorno;
169 count++;
170 }
171
172 prv = req;
173 req = req->next;
174 Safefree (prv);
175
176 /* TODO: croak on errors? */
177 }
178
179 return count;
180}
181
182static void *aio_proc(void *arg);
183
184static void
185start_thread (void)
186{
187 sigset_t fullsigset, oldsigset;
188 pthread_t tid;
189 pthread_attr_t attr;
190
191 pthread_attr_init (&attr);
192 pthread_attr_setstacksize (&attr, STACKSIZE);
193 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
194
195 sigfillset (&fullsigset);
196 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
197
198 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
199 started++;
200
201 sigprocmask (SIG_SETMASK, &oldsigset, 0);
202}
203
204static void
205send_req (aio_req req)
206{
207 nreqs++;
208
209 pthread_mutex_lock (&reqlock);
210
211 req->next = 0;
212
213 if (reqe)
214 {
215 reqe->next = req;
216 reqe = req;
217 }
218 else
219 reqe = reqs = req;
220
221 pthread_cond_signal (&reqwait);
222 pthread_mutex_unlock (&reqlock);
223
224 while (nreqs > max_outstanding)
225 {
226 poll_wait ();
227 poll_cb ();
228 }
229}
230
231static void
232end_thread (void)
233{
234 aio_req req;
235 New (0, req, 1, aio_cb);
236 req->type = REQ_QUIT;
237
238 send_req (req);
239}
240
241
242static void min_parallel (int nthreads)
243{
244 while (nthreads > started)
245 start_thread ();
246}
247
248static void max_parallel (int nthreads)
249{
250 int cur = started;
251 while (cur > nthreads)
252 {
253 end_thread ();
254 cur--;
255 }
256
257 while (started > nthreads)
258 {
259 poll_wait ();
260 poll_cb ();
261 }
262}
263
264static int fork_started;
265
266static void atfork_prepare (void)
267{
268 pthread_mutex_lock (&frklock);
269
270 fork_started = started;
271
272 for (;;) {
273 while (nreqs)
274 {
275 poll_wait ();
276 poll_cb ();
277 }
278
279 max_parallel (0);
280
281 pthread_mutex_lock (&reqlock);
282
283 if (!nreqs && !started)
284 break;
285
286 pthread_mutex_unlock (&reqlock);
287
288 min_parallel (fork_started);
289 }
290
291 pthread_mutex_lock (&reslock);
292
293 assert (!started);
294 assert (!nreqs);
295 assert (!reqs && !reqe);
296 assert (!ress && !rese);
297}
298
299static void atfork_parent (void)
300{
301 pthread_mutex_unlock (&reslock);
302 min_parallel (fork_started);
303 pthread_mutex_unlock (&reqlock);
304 pthread_mutex_unlock (&frklock);
305}
306
307static void atfork_child (void)
308{
309 reqs = reqe = 0;
310
311 atfork_parent ();
312}
313
314/*****************************************************************************/
315/* work around various missing functions */
316
317#if !HAVE_PREADWRITE
318# define pread aio_pread
319# define pwrite aio_pwrite
320
321/*
322 * make our pread/pwrite safe against themselves, but not against
323 * normal read/write by using a mutex. slows down execution a lot,
324 * but that's your problem, not mine.
325 */
326static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
327
328static ssize_t
329pread (int fd, void *buf, size_t count, off_t offset)
330{
331 ssize_t res;
332 off_t ooffset;
333
334 pthread_mutex_lock (&iolock);
335 ooffset = lseek (fd, 0, SEEK_CUR);
336 lseek (fd, offset, SEEK_SET);
337 res = read (fd, buf, count);
338 lseek (fd, ooffset, SEEK_SET);
339 pthread_mutex_unlock (&iolock);
340
341 return res;
342}
343
344static ssize_t
345pwrite (int fd, void *buf, size_t count, off_t offset)
346{
347 ssize_t res;
348 off_t ooffset;
349
350 pthread_mutex_lock (&iolock);
351 ooffset = lseek (fd, 0, SEEK_CUR);
352 lseek (fd, offset, SEEK_SET);
353 res = write (fd, buf, count);
354 lseek (fd, offset, SEEK_SET);
355 pthread_mutex_unlock (&iolock);
356
357 return res;
358}
359#endif
360
361#if !HAVE_FDATASYNC
362# define fdatasync fsync
363#endif
364
365#if !HAVE_READAHEAD
366# define readahead aio_readahead
367
368static char readahead_buf[4096];
369
370static ssize_t
371readahead (int fd, off_t offset, size_t count)
372{
373 while (count > 0)
374 {
375 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
376
377 pread (fd, readahead_buf, len, offset);
378 offset += len;
379 count -= len;
380 }
381
382 errno = 0;
383}
384#endif
385
386/*****************************************************************************/
387
388static void *
389aio_proc (void *thr_arg)
390{
391 aio_req req;
392 int type;
393
394 do
395 {
396 pthread_mutex_lock (&reqlock);
397
398 for (;;)
399 {
400 req = reqs;
401
402 if (reqs)
403 {
404 reqs = reqs->next;
405 if (!reqs) reqe = 0;
406 }
407
408 if (req)
409 break; 243 break;
410 244
411 pthread_cond_wait (&reqwait, &reqlock); 245 case EIO_GROUP:
412 } 246 req->int1 = 2; /* mark group as finished */
413 247
414 pthread_mutex_unlock (&reqlock); 248 if (req->sv1)
415
416 errno = 0; /* strictly unnecessary */
417
418 type = req->type;
419
420 switch (type)
421 { 249 {
422 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 250 int i;
423 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 251 AV *av = (AV *)req->sv1;
424 252
425 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 253 EXTEND (SP, AvFILL (av) + 1);
426 254 for (i = 0; i <= AvFILL (av); ++i)
427 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 255 PUSHs (*av_fetch (av, i, 0));
428 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 256 }
429 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
430
431 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
432 case REQ_CLOSE: req->result = close (req->fd); break;
433 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
434 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
435 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
436
437 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
438 case REQ_FSYNC: req->result = fsync (req->fd); break;
439
440 case REQ_QUIT:
441 break; 257 break;
442 258
259 case EIO_NOP:
260 case EIO_BUSY:
261 break;
262
263 case EIO_READLINK:
264 if (req->result > 0)
265 {
266 SvCUR_set (req->sv2, req->result);
267 *SvEND (req->sv2) = 0;
268 PUSHs (req->sv2);
269 }
270 break;
271
272 case EIO_STAT:
273 case EIO_LSTAT:
274 case EIO_FSTAT:
275 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
276 PL_laststatval = req->result;
277 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
278 PUSHs (sv_2mortal (newSViv (req->result)));
279 break;
280
281 case EIO_READ:
282 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
283 *SvEND (req->sv2) = 0;
284 PUSHs (sv_2mortal (newSViv (req->result)));
285 break;
286
287 case EIO_DUP2:
288 if (req->result > 0)
289 req->result = 0;
290 /* FALLTHROUGH */
291
443 default: 292 default:
444 req->result = ENOSYS; 293 PUSHs (sv_2mortal (newSViv (req->result)));
445 break; 294 break;
446 } 295 }
447 296
448 req->errorno = errno; 297 errno = req->errorno;
449 298
450 pthread_mutex_lock (&reslock); 299 PUTBACK;
300 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
301 SPAGAIN;
451 302
452 req->next = 0; 303 FREETMPS;
304 LEAVE;
453 305
454 if (rese) 306 PUTBACK;
455 {
456 rese->next = req;
457 rese = req;
458 }
459 else
460 {
461 rese = ress = req;
462
463 /* write a dummy byte to the pipe so fh becomes ready */
464 write (respipe [1], &respipe, 1);
465 }
466
467 pthread_mutex_unlock (&reslock);
468 } 307 }
469 while (type != REQ_QUIT);
470 308
309 return !!SvTRUE (ERRSV);
310}
311
312static void req_destroy (aio_req req)
313{
314 if (req->self)
315 {
316 sv_unmagic (req->self, PERL_MAGIC_ext);
317 SvREFCNT_dec (req->self);
318 }
319
320 SvREFCNT_dec (req->sv1);
321 SvREFCNT_dec (req->sv2);
322 SvREFCNT_dec (req->callback);
323
324 Safefree (req);
325}
326
327static void req_cancel_subs (aio_req grp)
328{
329 aio_req sub;
330
331 if (grp->type != EIO_GROUP)
332 return;
333
334 SvREFCNT_dec (grp->sv2);
335 grp->sv2 = 0;
336
337 eio_grp_cancel (grp);
338}
339
340#ifdef USE_SOCKETS_AS_HANDLES
341# define TO_SOCKET(x) (win32_get_osfhandle (x))
342#else
343# define TO_SOCKET(x) (x)
344#endif
345
346static void
347create_respipe (void)
348{
349 int old_readfd = respipe [0];
350
351 if (respipe [1] >= 0)
352 respipe_close (TO_SOCKET (respipe [1]));
353
354#ifdef _WIN32
355 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
356#else
357 if (pipe (respipe))
358#endif
359 croak ("unable to initialize result pipe");
360
361 if (old_readfd >= 0)
362 {
363 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
364 croak ("unable to initialize result pipe(2)");
365
366 respipe_close (respipe [0]);
367 respipe [0] = old_readfd;
368 }
369
370#ifdef _WIN32
371 int arg = 1;
372 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
373 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
374#else
375 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
376 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
377#endif
378 croak ("unable to initialize result pipe(3)");
379
380 respipe_osf [0] = TO_SOCKET (respipe [0]);
381 respipe_osf [1] = TO_SOCKET (respipe [1]);
382}
383
384static void poll_wait (void)
385{
386 fd_set rfd;
387
388 while (eio_nreqs ())
389 {
390 int size;
391
392 X_LOCK (reslock);
393 size = res_queue.size;
394 X_UNLOCK (reslock);
395
396 if (size)
397 return;
398
399 maybe_start_thread ();
400
401 FD_ZERO (&rfd);
402 FD_SET (respipe [0], &rfd);
403
404 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
405 }
406}
407
408static int poll_cb (void)
409{
410 int res;
411
412 do
413 {
414 res = eio_poll ();
415
416 if (res > 0)
417 croak (0);
418 }
419 while (max_outstanding && max_outstanding <= eio_nreqs ());
420
471 return 0; 421 return res;
422}
423
424static void atfork_child (void)
425{
426 create_respipe ();
472} 427}
473 428
474#define dREQ \ 429#define dREQ \
475 aio_req req; \ 430 aio_req req; \
431 int req_pri = next_pri; \
432 next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
476 \ 433 \
477 if (SvOK (callback) && !SvROK (callback)) \ 434 if (SvOK (callback) && !SvROK (callback)) \
478 croak ("clalback must be undef or of reference type"); \ 435 croak ("callback must be undef or of reference type"); \
479 \ 436 \
480 Newz (0, req, 1, aio_cb); \ 437 Newz (0, req, 1, eio_req); \
481 if (!req) \ 438 if (!req) \
482 croak ("out of memory during aio_req allocation"); \ 439 croak ("out of memory during eio_req allocation"); \
483 \ 440 \
484 req->callback = SvREFCNT_inc (callback); 441 req->callback = newSVsv (callback); \
442 req->pri = req_pri
443
444#define REQ_SEND \
445 eio_submit (req); \
446 \
447 if (GIMME_V != G_VOID) \
448 XPUSHs (req_sv (req, AIO_REQ_KLASS));
485 449
486MODULE = IO::AIO PACKAGE = IO::AIO 450MODULE = IO::AIO PACKAGE = IO::AIO
487 451
488PROTOTYPES: ENABLE 452PROTOTYPES: ENABLE
489 453
490BOOT: 454BOOT:
491{ 455{
492 if (pipe (respipe)) 456 stash = gv_stashpv ("IO::AIO", 1);
493 croak ("unable to initialize result pipe");
494 457
495 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 458 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
496 croak ("cannot set result pipe to nonblocking mode"); 459 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
460 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
461 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
462 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
463#ifdef _WIN32
464 X_MUTEX_CHECK (wrklock);
465 X_MUTEX_CHECK (reslock);
466 X_MUTEX_CHECK (reqlock);
467 X_MUTEX_CHECK (reqwait);
468 X_MUTEX_CHECK (preadwritelock);
469 X_MUTEX_CHECK (readdirlock);
497 470
498 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 471 X_COND_CHECK (reqwait);
499 croak ("cannot set result pipe to nonblocking mode"); 472#else
473 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
474#endif
500 475
501 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 476 create_respipe ();
502}
503 477
478 if (eio_init (want_poll, done_poll) < 0)
479 croak ("IO::AIO: unable to initialise eio library");
480
481 /* atfork child called in fifo order, so before eio's handler */
482 X_THREAD_ATFORK (0, 0, atfork_child);
483}
484
504void 485void
505min_parallel(nthreads) 486max_poll_reqs (int nreqs)
506 int nthreads
507 PROTOTYPE: $ 487 PROTOTYPE: $
488 CODE:
489 eio_set_max_poll_reqs (nreqs);
508 490
509void 491void
510max_parallel(nthreads) 492max_poll_time (double nseconds)
511 int nthreads
512 PROTOTYPE: $ 493 PROTOTYPE: $
513
514int
515max_outstanding(nreqs)
516 int nreqs
517 PROTOTYPE: $
518 CODE: 494 CODE:
519 RETVAL = max_outstanding; 495 eio_set_max_poll_time (nseconds);
496
497void
498min_parallel (int nthreads)
499 PROTOTYPE: $
500 CODE:
501 eio_set_min_parallel (nthreads);
502
503void
504max_parallel (int nthreads)
505 PROTOTYPE: $
506 CODE:
507 eio_set_max_parallel (nthreads);
508
509void
510max_idle (int nthreads)
511 PROTOTYPE: $
512 CODE:
513 eio_set_max_idle (nthreads);
514
515void
516max_outstanding (int maxreqs)
517 PROTOTYPE: $
518 CODE:
520 max_outstanding = nreqs; 519 max_outstanding = maxreqs;
521 520
522void 521void
523aio_open(pathname,flags,mode,callback=&PL_sv_undef) 522aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
524 SV * pathname
525 int flags
526 int mode
527 SV * callback
528 PROTOTYPE: $$$;$ 523 PROTOTYPE: $$$;$
529 CODE: 524 PPCODE:
530{ 525{
531 dREQ; 526 dREQ;
532 527
533 req->type = REQ_OPEN; 528 req->type = EIO_OPEN;
534 req->data = newSVsv (pathname); 529 req->sv1 = newSVsv (pathname);
535 req->dataptr = SvPVbyte_nolen (req->data); 530 req->ptr1 = SvPVbyte_nolen (req->sv1);
536 req->fd = flags; 531 req->int1 = flags;
537 req->mode = mode; 532 req->int2 = mode;
538 533
539 send_req (req); 534 REQ_SEND;
540} 535}
541 536
542void 537void
543aio_close(fh,callback=&PL_sv_undef) 538aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
544 SV * fh
545 SV * callback
546 PROTOTYPE: $;$ 539 PROTOTYPE: $;$
547 ALIAS: 540 ALIAS:
548 aio_close = REQ_CLOSE
549 aio_fsync = REQ_FSYNC 541 aio_fsync = EIO_FSYNC
550 aio_fdatasync = REQ_FDATASYNC 542 aio_fdatasync = EIO_FDATASYNC
551 CODE: 543 PPCODE:
552{ 544{
553 dREQ; 545 dREQ;
554 546
555 req->type = ix; 547 req->type = ix;
556 req->fh = newSVsv (fh); 548 req->sv1 = newSVsv (fh);
557 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 549 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
558 550
559 send_req (req); 551 REQ_SEND (req);
560} 552}
561 553
562void 554void
555aio_close (SV *fh, SV *callback=&PL_sv_undef)
556 PROTOTYPE: $;$
557 PPCODE:
558{
559 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
560 dREQ;
561
562 if (close_pipe < 0)
563 {
564 int pipefd [2];
565
566 if (pipe (pipefd) < 0
567 || close (pipefd [1]) < 0
568 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
569 abort (); /*D*/
570
571 close_pipe = pipefd [0];
572 }
573
574 req->type = EIO_DUP2;
575 req->int1 = close_pipe;
576 req->sv2 = newSVsv (fh);
577 req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));
578
579 REQ_SEND (req);
580}
581
582void
563aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 583aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
564 SV * fh
565 UV offset
566 IV length
567 SV * data
568 IV dataoffset
569 SV * callback
570 ALIAS: 584 ALIAS:
571 aio_read = REQ_READ 585 aio_read = EIO_READ
572 aio_write = REQ_WRITE 586 aio_write = EIO_WRITE
573 PROTOTYPE: $$$$$;$ 587 PROTOTYPE: $$$$$;$
574 CODE: 588 PPCODE:
575{ 589{
576 aio_req req;
577 STRLEN svlen; 590 STRLEN svlen;
578 char *svptr = SvPVbyte (data, svlen); 591 char *svptr = SvPVbyte (data, svlen);
592 UV len = SvUV (length);
579 593
580 SvUPGRADE (data, SVt_PV); 594 SvUPGRADE (data, SVt_PV);
581 SvPOK_on (data); 595 SvPOK_on (data);
582 596
583 if (dataoffset < 0) 597 if (dataoffset < 0)
584 dataoffset += svlen; 598 dataoffset += svlen;
585 599
586 if (dataoffset < 0 || dataoffset > svlen) 600 if (dataoffset < 0 || dataoffset > svlen)
587 croak ("data offset outside of string"); 601 croak ("dataoffset outside of data scalar");
588 602
589 if (ix == REQ_WRITE) 603 if (ix == EIO_WRITE)
590 { 604 {
591 /* write: check length and adjust. */ 605 /* write: check length and adjust. */
592 if (length < 0 || length + dataoffset > svlen) 606 if (!SvOK (length) || len + dataoffset > svlen)
593 length = svlen - dataoffset; 607 len = svlen - dataoffset;
594 } 608 }
595 else 609 else
596 { 610 {
597 /* read: grow scalar as necessary */ 611 /* read: grow scalar as necessary */
598 svptr = SvGROW (data, length + dataoffset); 612 svptr = SvGROW (data, len + dataoffset + 1);
599 } 613 }
600 614
601 if (length < 0) 615 if (len < 0)
602 croak ("length must not be negative"); 616 croak ("length must not be negative");
603 617
604 { 618 {
605 dREQ; 619 dREQ;
606 620
607 req->type = ix; 621 req->type = ix;
608 req->fh = newSVsv (fh); 622 req->sv1 = newSVsv (fh);
609 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 623 req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))
610 : IoOFP (sv_2io (fh))); 624 : IoOFP (sv_2io (fh)));
625 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
611 req->offset = offset; 626 req->size = len;
612 req->length = length;
613 req->data = SvREFCNT_inc (data); 627 req->sv2 = SvREFCNT_inc (data);
614 req->dataptr = (char *)svptr + dataoffset; 628 req->ptr2 = (char *)svptr + dataoffset;
615 req->callback = SvREFCNT_inc (callback); 629 req->stroffset = dataoffset;
616 630
617 send_req (req); 631 if (!SvREADONLY (data))
632 {
633 SvREADONLY_on (data);
634 req->flags |= FLAG_SV2_RO_OFF;
635 }
636
637 REQ_SEND;
618 } 638 }
619} 639}
620 640
621void 641void
642aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
643 PROTOTYPE: $$;$
644 PPCODE:
645{
646 SV *data;
647 dREQ;
648
649 data = newSV (NAME_MAX);
650 SvPOK_on (data);
651
652 req->type = EIO_READLINK;
653 req->sv1 = newSVsv (path);
654 req->ptr1 = SvPVbyte_nolen (req->sv1);
655 req->sv2 = data;
656 req->ptr2 = SvPVbyte_nolen (data);
657
658 REQ_SEND;
659}
660
661void
662aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
663 PROTOTYPE: $$$$;$
664 PPCODE:
665{
666 dREQ;
667
668 req->type = EIO_SENDFILE;
669 req->sv1 = newSVsv (out_fh);
670 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
671 req->sv2 = newSVsv (in_fh);
672 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
673 req->offs = SvVAL64 (in_offset);
674 req->size = length;
675
676 REQ_SEND;
677}
678
679void
622aio_readahead(fh,offset,length,callback=&PL_sv_undef) 680aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
623 SV * fh
624 UV offset
625 IV length
626 SV * callback
627 PROTOTYPE: $$$;$ 681 PROTOTYPE: $$$;$
628 CODE: 682 PPCODE:
629{ 683{
630 dREQ; 684 dREQ;
631 685
632 req->type = REQ_READAHEAD; 686 req->type = EIO_READAHEAD;
633 req->fh = newSVsv (fh); 687 req->sv1 = newSVsv (fh);
634 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 688 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
635 req->offset = offset; 689 req->offs = SvVAL64 (offset);
636 req->length = length; 690 req->size = length;
637 691
638 send_req (req); 692 REQ_SEND;
639} 693}
640 694
641void 695void
642aio_stat(fh_or_path,callback=&PL_sv_undef) 696aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
643 SV * fh_or_path
644 SV * callback
645 ALIAS: 697 ALIAS:
646 aio_stat = REQ_STAT 698 aio_stat = EIO_STAT
647 aio_lstat = REQ_LSTAT 699 aio_lstat = EIO_LSTAT
648 CODE: 700 PPCODE:
649{ 701{
650 dREQ; 702 dREQ;
651 703
652 New (0, req->statdata, 1, Stat_t); 704 req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));
653 if (!req->statdata) 705 if (!req->ptr2)
654 croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)"); 706 {
707 req_destroy (req);
708 croak ("out of memory during aio_stat statdata allocation");
709 }
710
711 req->flags |= EIO_FLAG_PTR2_FREE;
712 req->sv1 = newSVsv (fh_or_path);
655 713
656 if (SvPOK (fh_or_path)) 714 if (SvPOK (fh_or_path))
657 { 715 {
658 req->type = ix; 716 req->type = ix;
659 req->data = newSVsv (fh_or_path);
660 req->dataptr = SvPVbyte_nolen (req->data); 717 req->ptr1 = SvPVbyte_nolen (req->sv1);
661 } 718 }
662 else 719 else
663 { 720 {
664 req->type = REQ_FSTAT; 721 req->type = EIO_FSTAT;
665 req->fh = newSVsv (fh_or_path);
666 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 722 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
723 }
724
725 REQ_SEND;
726}
727
728void
729aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
730 PPCODE:
731{
732 dREQ;
733
734 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
735 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
736 req->sv1 = newSVsv (fh_or_path);
737
738 if (SvPOK (fh_or_path))
667 } 739 {
740 req->type = EIO_UTIME;
741 req->ptr1 = SvPVbyte_nolen (req->sv1);
742 }
743 else
744 {
745 req->type = EIO_FUTIME;
746 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
747 }
668 748
669 send_req (req); 749 REQ_SEND;
670} 750}
671 751
672void 752void
753aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
754 PPCODE:
755{
756 dREQ;
757
758 req->sv1 = newSVsv (fh_or_path);
759 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
760
761 if (SvPOK (fh_or_path))
762 {
763 req->type = EIO_TRUNCATE;
764 req->ptr1 = SvPVbyte_nolen (req->sv1);
765 }
766 else
767 {
768 req->type = EIO_FTRUNCATE;
769 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
770 }
771
772 REQ_SEND;
773}
774
775void
776aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
777 ALIAS:
778 aio_chmod = EIO_CHMOD
779 aio_fchmod = EIO_FCHMOD
780 aio_mkdir = EIO_MKDIR
781 PPCODE:
782{
783 dREQ;
784
785 req->type = ix;
786 req->int2 = mode;
787 req->sv1 = newSVsv (fh_or_path);
788
789 if (ix == EIO_FCHMOD)
790 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
791 else
792 req->ptr1 = SvPVbyte_nolen (req->sv1);
793
794 REQ_SEND;
795}
796
797void
798aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
799 PPCODE:
800{
801 dREQ;
802
803 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
804 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
805 req->sv1 = newSVsv (fh_or_path);
806
807 if (SvPOK (fh_or_path))
808 {
809 req->type = EIO_CHOWN;
810 req->ptr1 = SvPVbyte_nolen (req->sv1);
811 }
812 else
813 {
814 req->type = EIO_FCHOWN;
815 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
816 }
817
818 REQ_SEND;
819}
820
821void
673aio_unlink(pathname,callback=&PL_sv_undef) 822aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
674 SV * pathname
675 SV * callback
676 ALIAS: 823 ALIAS:
677 aio_unlink = REQ_UNLINK 824 aio_unlink = EIO_UNLINK
678 aio_rmdir = REQ_RMDIR 825 aio_rmdir = EIO_RMDIR
826 aio_readdir = EIO_READDIR
679 CODE: 827 PPCODE:
680{ 828{
681 dREQ; 829 dREQ;
682 830
683 req->type = ix; 831 req->type = ix;
684 req->data = newSVsv (pathname); 832 req->sv1 = newSVsv (pathname);
685 req->dataptr = SvPVbyte_nolen (req->data); 833 req->ptr1 = SvPVbyte_nolen (req->sv1);
834
835 REQ_SEND;
836}
837
838void
839aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
840 ALIAS:
841 aio_link = EIO_LINK
842 aio_symlink = EIO_SYMLINK
843 aio_rename = EIO_RENAME
844 PPCODE:
845{
846 dREQ;
686 847
687 send_req (req); 848 req->type = ix;
688} 849 req->sv1 = newSVsv (oldpath);
689 850 req->ptr1 = SvPVbyte_nolen (req->sv1);
690void 851 req->sv2 = newSVsv (newpath);
691aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 852 req->ptr2 = SvPVbyte_nolen (req->sv2);
692 SV * oldpath
693 SV * newpath
694 SV * callback
695 CODE:
696{
697 dREQ;
698 853
699 req->type = REQ_SYMLINK; 854 REQ_SEND;
700 req->fh = newSVsv (oldpath); 855}
701 req->data2ptr = SvPVbyte_nolen (req->fh); 856
702 req->data = newSVsv (newpath); 857void
703 req->dataptr = SvPVbyte_nolen (req->data); 858aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
859 PPCODE:
860{
861 dREQ;
704 862
705 send_req (req); 863 req->type = EIO_MKNOD;
864 req->sv1 = newSVsv (pathname);
865 req->ptr1 = SvPVbyte_nolen (req->sv1);
866 req->int2 = (mode_t)mode;
867 req->offs = dev;
868
869 REQ_SEND;
706} 870}
707 871
708void 872void
873aio_busy (double delay, SV *callback=&PL_sv_undef)
874 PPCODE:
875{
876 dREQ;
877
878 req->type = EIO_BUSY;
879 req->nv1 = delay < 0. ? 0. : delay;
880
881 REQ_SEND;
882}
883
884void
885aio_group (SV *callback=&PL_sv_undef)
886 PROTOTYPE: ;$
887 PPCODE:
888{
889 dREQ;
890
891 req->type = EIO_GROUP;
892
893 eio_submit (req);
894 XPUSHs (req_sv (req, AIO_GRP_KLASS));
895}
896
897void
898aio_nop (SV *callback=&PL_sv_undef)
899 ALIAS:
900 aio_nop = EIO_NOP
901 aio_sync = EIO_SYNC
902 PPCODE:
903{
904 dREQ;
905
906 req->type = ix;
907
908 REQ_SEND;
909}
910
911int
912aioreq_pri (int pri = 0)
913 PROTOTYPE: ;$
914 CODE:
915 RETVAL = next_pri - EIO_PRI_BIAS;
916 if (items > 0)
917 {
918 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
919 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
920 next_pri = pri + EIO_PRI_BIAS;
921 }
922 OUTPUT:
923 RETVAL
924
925void
926aioreq_nice (int nice = 0)
927 CODE:
928 nice = next_pri - nice;
929 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
930 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931 next_pri = nice + EIO_PRI_BIAS;
932
933void
709flush() 934flush ()
710 PROTOTYPE: 935 PROTOTYPE:
711 CODE: 936 CODE:
712 while (nreqs) 937 while (eio_nreqs ())
713 { 938 {
714 poll_wait (); 939 poll_wait ();
715 poll_cb (); 940 poll_cb ();
716 } 941 }
717 942
718void 943int
719poll() 944poll()
720 PROTOTYPE: 945 PROTOTYPE:
721 CODE: 946 CODE:
722 if (nreqs)
723 {
724 poll_wait (); 947 poll_wait ();
725 poll_cb (); 948 RETVAL = poll_cb ();
726 } 949 OUTPUT:
950 RETVAL
727 951
728int 952int
729poll_fileno() 953poll_fileno()
730 PROTOTYPE: 954 PROTOTYPE:
731 CODE: 955 CODE:
… …
743 967
744void 968void
745poll_wait() 969poll_wait()
746 PROTOTYPE: 970 PROTOTYPE:
747 CODE: 971 CODE:
748 if (nreqs)
749 poll_wait (); 972 poll_wait ();
750 973
751int 974int
752nreqs() 975nreqs()
753 PROTOTYPE: 976 PROTOTYPE:
754 CODE: 977 CODE:
755 RETVAL = nreqs; 978 RETVAL = eio_nreqs ();
756 OUTPUT: 979 OUTPUT:
757 RETVAL 980 RETVAL
758 981
982int
983nready()
984 PROTOTYPE:
985 CODE:
986 RETVAL = eio_nready ();
987 OUTPUT:
988 RETVAL
989
990int
991npending()
992 PROTOTYPE:
993 CODE:
994 RETVAL = eio_npending ();
995 OUTPUT:
996 RETVAL
997
998int
999nthreads()
1000 PROTOTYPE:
1001 CODE:
1002 if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1003 RETVAL = started;
1004 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1005 OUTPUT:
1006 RETVAL
1007
1008PROTOTYPES: DISABLE
1009
1010MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1011
1012void
1013cancel (aio_req_ornot req)
1014 CODE:
1015 eio_cancel (req);
1016
1017void
1018cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1019 CODE:
1020 SvREFCNT_dec (req->callback);
1021 req->callback = newSVsv (callback);
1022
1023MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1024
1025void
1026add (aio_req grp, ...)
1027 PPCODE:
1028{
1029 int i;
1030
1031 if (grp->int1 == 2)
1032 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1033
1034 for (i = 1; i < items; ++i )
1035 {
1036 aio_req req;
1037
1038 if (GIMME_V != G_VOID)
1039 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1040
1041 req = SvAIO_REQ (ST (i));
1042
1043 if (req)
1044 eio_grp_add (grp, req);
1045 }
1046}
1047
1048void
1049cancel_subs (aio_req_ornot req)
1050 CODE:
1051 req_cancel_subs (req);
1052
1053void
1054result (aio_req grp, ...)
1055 CODE:
1056{
1057 int i;
1058 AV *av;
1059
1060 grp->errorno = errno;
1061
1062 av = newAV ();
1063
1064 for (i = 1; i < items; ++i )
1065 av_push (av, newSVsv (ST (i)));
1066
1067 SvREFCNT_dec (grp->sv1);
1068 grp->sv1 = (SV *)av;
1069}
1070
1071void
1072errno (aio_req grp, int errorno = errno)
1073 CODE:
1074 grp->errorno = errorno;
1075
1076void
1077limit (aio_req grp, int limit)
1078 CODE:
1079 eio_grp_limit (grp, limit);
1080
1081void
1082feed (aio_req grp, SV *callback=&PL_sv_undef)
1083 CODE:
1084{
1085 SvREFCNT_dec (grp->sv2);
1086 grp->sv2 = newSVsv (callback);
1087
1088 if (grp->int2 <= 0)
1089 grp->int2 = 2;
1090
1091 eio_grp_limit (grp, grp->int2);
1092}
1093

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines