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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.18 by root, Sun Jul 31 19:00:31 2005 UTC vs.
Revision 1.202 by root, Thu Sep 29 10:01:35 2011 UTC

1#include "libeio/xthread.h"
2
3#include <errno.h>
4
1#include "EXTERN.h" 5#include "EXTERN.h"
2#include "perl.h" 6#include "perl.h"
3#include "XSUB.h" 7#include "XSUB.h"
4 8
5#include "autoconf/config.h" 9#include "schmorp.h"
6 10
11#include <stddef.h>
12#include <stdlib.h>
13#include <errno.h>
7#include <sys/types.h> 14#include <sys/types.h>
8#include <sys/stat.h> 15#include <sys/stat.h>
9
10#include <unistd.h> 16#include <limits.h>
11#include <fcntl.h> 17#include <fcntl.h>
12#include <signal.h>
13#include <sched.h> 18#include <sched.h>
14 19
15#ifndef _REENTRANT 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
16# define _REENTRANT 1 21# include <sys/mman.h>
17#endif 22#endif
18#include <errno.h>
19 23
20#include <pthread.h> 24/* perl namespace pollution */
25#undef VERSION
21 26
22typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 27/* perl stupidly overrides readdir and maybe others */
23typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 28/* with thread-unsafe versions, imagine that :( */
24typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 29#undef readdir
30#undef opendir
31#undef closedir
25 32
26#if __ia64 33#ifdef _WIN32
27# define STACKSIZE 65536 34
35 // perl overrides all those nice libc functions
36
37 #undef malloc
38 #undef free
39 #undef open
40 #undef read
41 #undef write
42 #undef send
43 #undef recv
44 #undef stat
45 #undef lstat
46 #undef fstat
47 #undef truncate
48 #undef ftruncate
49 #undef open
50 #undef link
51 #undef close
52 #undef unlink
53 #undef mkdir
54 #undef rmdir
55 #undef rename
56 #undef lseek
57 #undef opendir
58 #undef readdir
59 #undef closedir
60 #undef chmod
61 #undef fchmod
62 #undef dup
63 #undef dup2
64 #undef abort
65 #undef pipe
66
28#else 67#else
29# define STACKSIZE 4096 68
69 #include <sys/time.h>
70 #include <sys/select.h>
71 #include <unistd.h>
72 #include <utime.h>
73 #include <signal.h>
74
75#endif
76
77#define EIO_STRUCT_STAT Stat_t
78
79/* use NV for 32 bit perls as it allows larger offsets */
80#if IVSIZE >= 8
81# define VAL64 IV
82# define SvVAL64 SvIV
83# define newSVval64 newSViv
84#else
85# define VAL64 NV
86# define SvVAL64 SvNV
87# define newSVval64 newSVnv
88#endif
89
90/*****************************************************************************/
91
92#if __GNUC__ >= 3
93# define expect(expr,value) __builtin_expect ((expr),(value))
94#else
95# define expect(expr,value) (expr)
96#endif
97
98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
100
101/*****************************************************************************/
102
103typedef SV SV8; /* byte-sv, used for argument-checking */
104typedef int aio_rfd; /* read file desriptor */
105typedef int aio_wfd; /* write file descriptor */
106
107static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108
109#define EIO_REQ_MEMBERS \
110 SV *callback; \
111 SV *sv1, *sv2; \
112 SV *sv3, *sv4; \
113 STRLEN stroffset; \
114 SV *self;
115
116#define EIO_NO_WRAPPERS 1
117
118#include "libeio/config.h"
119#include "libeio/eio.h"
120
121static int req_invoke (eio_req *req);
122#define EIO_FINISH(req) req_invoke (req)
123static void req_destroy (eio_req *grp);
124#define EIO_DESTROY(req) req_destroy (req)
125
126#include "libeio/eio.c"
127
128/* Linux/others */
129#ifndef O_ASYNC
130# define O_ASYNC 0
131#endif
132#ifndef O_DIRECT
133# define O_DIRECT 0
134#endif
135#ifndef O_NOATIME
136# define O_NOATIME 0
137#endif
138
139/* POSIX */
140#ifndef O_CLOEXEC
141# define O_CLOEXEC 0
142#endif
143#ifndef O_NOFOLLOW
144# define O_NOFOLLOW 0
145#endif
146#ifndef O_NOCTTY
147# define O_NOCTTY 0
148#endif
149#ifndef O_NONBLOCK
150# define O_NONBLOCK 0
151#endif
152#ifndef O_EXEC
153# define O_EXEC 0
154#endif
155#ifndef O_SEARCH
156# define O_SEARCH 0
157#endif
158#ifndef O_DIRECTORY
159# define O_DIRECTORY 0
160#endif
161#ifndef O_DSYNC
162# define O_DSYNC 0
163#endif
164#ifndef O_RSYNC
165# define O_RSYNC 0
166#endif
167#ifndef O_SYNC
168# define O_SYNC 0
169#endif
170#ifndef O_TTY_INIT
171# define O_TTY_INIT 0
172#endif
173
174#ifndef POSIX_FADV_NORMAL
175# define POSIX_FADV_NORMAL 0
176#endif
177#ifndef POSIX_FADV_SEQUENTIAL
178# define POSIX_FADV_SEQUENTIAL 0
179#endif
180#ifndef POSIX_FADV_RANDOM
181# define POSIX_FADV_RANDOM 0
182#endif
183#ifndef POSIX_FADV_NOREUSE
184# define POSIX_FADV_NOREUSE 0
185#endif
186#ifndef POSIX_FADV_WILLNEED
187# define POSIX_FADV_WILLNEED 0
188#endif
189#ifndef POSIX_FADV_DONTNEED
190# define POSIX_FADV_DONTNEED 0
191#endif
192
193#if !HAVE_POSIX_FADVISE
194# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195#endif
196
197#ifndef POSIX_MADV_NORMAL
198# define POSIX_MADV_NORMAL 0
199#endif
200#ifndef POSIX_MADV_SEQUENTIAL
201# define POSIX_MADV_SEQUENTIAL 0
202#endif
203#ifndef POSIX_MADV_RANDOM
204# define POSIX_MADV_RANDOM 0
205#endif
206#ifndef POSIX_MADV_WILLNEED
207# define POSIX_MADV_WILLNEED 0
208#endif
209#ifndef POSIX_MADV_DONTNEED
210# define POSIX_MADV_DONTNEED 0
211#endif
212
213#if !HAVE_POSIX_MADVISE
214# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215#endif
216
217#ifndef PROT_NONE
218# define PROT_NONE 0
219#endif
220#ifndef PROT_READ
221# define PROT_READ 0
222#endif
223#ifndef PROT_WRITE
224# define PROT_READ 0
225#endif
226#ifndef PROT_EXEC
227# define PROT_EXEC 0
228#endif
229
230#ifndef ST_RDONLY
231# define ST_RDONLY 0
232#endif
233#ifndef ST_NOSUID
234# define ST_NOSUID 0
235#endif
236#ifndef ST_NODEV
237# define ST_NODEV 0
238#endif
239#ifndef ST_NOEXEC
240# define ST_NOEXEC 0
241#endif
242#ifndef ST_SYNCHRONOUS
243# define ST_SYNCHRONOUS 0
244#endif
245#ifndef ST_MANDLOCK
246# define ST_MANDLOCK 0
247#endif
248#ifndef ST_WRITE
249# define ST_WRITE 0
250#endif
251#ifndef ST_APPEND
252# define ST_APPEND 0
253#endif
254#ifndef ST_IMMUTABLE
255# define ST_IMMUTABLE 0
256#endif
257#ifndef ST_NOATIME
258# define ST_NOATIME 0
259#endif
260#ifndef ST_NODIRATIME
261# define ST_NODIRATIME 0
262#endif
263#ifndef ST_RELATIME
264# define ST_RELATIME 0
265#endif
266
267#ifndef S_IFIFO
268# define S_IFIFO 0
269#endif
270#ifndef S_IFCHR
271# define S_IFCHR 0
272#endif
273#ifndef S_IFBLK
274# define S_IFBLK 0
275#endif
276#ifndef S_IFLNK
277# define S_IFLNK 0
278#endif
279#ifndef S_IFREG
280# define S_IFREG 0
281#endif
282#ifndef S_IFDIR
283# define S_IFDIR 0
284#endif
285#ifndef S_IFWHT
286# define S_IFWHT 0
287#endif
288#ifndef S_IFSOCK
289# define S_IFSOCK 0
290#endif
291
292#ifndef MAP_ANONYMOUS
293# ifdef MAP_ANON
294# define MAP_ANONYMOUS MAP_ANON
295# else
296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297# endif
298#endif
299#ifndef MAP_HUGETLB
300# define MAP_HUGETLB 0
301#endif
302#ifndef MAP_LOCKED
303# define MAP_LOCKED 0
304#endif
305#ifndef MAP_NORESERVE
306# define MAP_NORESERVE 0
307#endif
308#ifndef MAP_POPULATE
309# define MAP_POPULATE 0
310#endif
311#ifndef MAP_NONBLOCK
312# define MAP_NONBLOCK 0
313#endif
314
315#ifndef makedev
316# define makedev(maj,min) (((maj) << 8) | (min))
317#endif
318#ifndef major
319# define major(dev) ((dev) >> 8)
320#endif
321#ifndef minor
322# define minor(dev) ((dev) & 0xff)
323#endif
324
325#ifndef PAGESIZE
326# define PAGESIZE sysconf (_SC_PAGESIZE)
30#endif 327#endif
31 328
32enum { 329enum {
33 REQ_QUIT, 330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
34 REQ_OPEN, REQ_CLOSE,
35 REQ_READ, REQ_WRITE, REQ_READAHEAD,
36 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,
37 REQ_FSYNC, REQ_FDATASYNC,
38}; 331};
39 332
40typedef struct aio_cb {
41 struct aio_cb *volatile next;
42
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;
53 STRLEN dataoffset;
54
55 Stat_t *statdata;
56} aio_cb;
57
58typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
334typedef eio_req *aio_req_ornot;
335typedef eio_wd aio_wd;
59 336
60static int started; 337static SV *on_next_submit;
61static volatile int nreqs; 338static int next_pri = EIO_PRI_DEFAULT;
62static int max_outstanding = 1<<30; 339static int max_outstanding;
63static int respipe [2];
64 340
65static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 341static s_epipe respipe;
66static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
68 342
69static volatile aio_req reqs, reqe; /* queue start, queue end */ 343static void req_destroy (aio_req req);
70static volatile aio_req ress, rese; /* queue start, queue end */ 344static void req_cancel (aio_req req);
71 345
72static void 346static void
73poll_wait () 347want_poll (void)
74{ 348{
75 if (nreqs && !ress) 349 /* write a dummy byte to the pipe so fh becomes ready */
350 s_epipe_signal (&respipe);
351}
352
353static void
354done_poll (void)
355{
356 /* read any signals sent by the worker threads */
357 s_epipe_drain (&respipe);
358}
359
360/* must be called at most once */
361static SV *
362req_sv (aio_req req, HV *stash)
363{
364 if (!req->self)
76 { 365 {
77 fd_set rfd; 366 req->self = (SV *)newHV ();
78 FD_ZERO(&rfd); 367 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
79 FD_SET(respipe [0], &rfd);
80
81 select (respipe [0] + 1, &rfd, 0, 0, 0);
82 } 368 }
369
370 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
371}
372
373static SV *
374newSVaio_wd (aio_wd wd)
375{
376 return sv_bless (newRV_noinc (newSViv ((long)wd)), aio_wd_stash);
377}
378
379static aio_req
380SvAIO_REQ (SV *sv)
381{
382 MAGIC *mg;
383
384 if (!SvROK (sv)
385 || (SvSTASH (SvRV (sv)) != aio_grp_stash
386 && SvSTASH (SvRV (sv)) != aio_req_stash
387 && !sv_derived_from (sv, "IO::AIO::REQ")))
388 croak ("object of class IO::AIO::REQ expected");
389
390 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
391
392 return mg ? (aio_req)mg->mg_ptr : 0;
393}
394
395static aio_wd
396SvAIO_WD (SV *sv)
397{
398 if (!SvROK (sv)
399 || SvSTASH (SvRV (sv)) != aio_wd_stash
400 || SvTYPE (SvRV (sv)) != SVt_PVMG)
401 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
402
403 return (aio_wd)(long)SvIVX (SvRV (sv));
404}
405
406static void
407aio_grp_feed (aio_req grp)
408{
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP;
412
413 ENTER;
414 SAVETMPS;
415 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN;
420 FREETMPS;
421 LEAVE;
422 }
423}
424
425static void
426req_submit (eio_req *req)
427{
428 eio_submit (req);
429
430 if (expect_false (on_next_submit))
431 {
432 dSP;
433 SV *cb = sv_2mortal (on_next_submit);
434
435 on_next_submit = 0;
436
437 PUSHMARK (SP);
438 PUTBACK;
439 call_sv (cb, G_DISCARD | G_EVAL);
440 }
83} 441}
84 442
85static int 443static int
86poll_cb () 444req_invoke (eio_req *req)
87{ 445{
88 dSP; 446 if (req->flags & FLAG_SV2_RO_OFF)
89 int count = 0; 447 SvREADONLY_off (req->sv2);
90 aio_req req, prv;
91 448
92 pthread_mutex_lock (&reslock); 449 if (!EIO_CANCELLED (req) && req->callback)
93
94 {
95 /* read any signals sent by the worker threads */
96 char buf [32];
97 while (read (respipe [0], buf, 32) > 0)
98 ;
99 }
100
101 req = ress;
102 ress = rese = 0;
103
104 pthread_mutex_unlock (&reslock);
105
106 while (req)
107 { 450 {
108 nreqs--; 451 dSP;
452 static SV *sv_result_cache; /* caches the result integer SV */
453 SV *sv_result;
109 454
110 if (req->type == REQ_QUIT) 455 ENTER;
111 started--; 456 SAVETMPS;
112 else 457 PUSHMARK (SP);
458 EXTEND (SP, 1);
459
460 /* do not recreate the result IV from scratch each time */
461 if (expect_true (sv_result_cache))
113 { 462 {
114 int errorno = errno; 463 sv_result = sv_result_cache; sv_result_cache = 0;
115 errno = req->errorno; 464 SvIV_set (sv_result, req->result);
116 465 SvIOK_only (sv_result);
117 if (req->type == REQ_READ)
118 SvCUR_set (req->data, req->dataoffset
119 + req->result > 0 ? req->result : 0);
120
121 if (req->data)
122 SvREFCNT_dec (req->data);
123
124 if (req->fh)
125 SvREFCNT_dec (req->fh);
126
127 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
128 {
129 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
130 PL_laststatval = req->result;
131 PL_statcache = *(req->statdata);
132
133 Safefree (req->statdata);
134 }
135
136 ENTER;
137 PUSHMARK (SP);
138 XPUSHs (sv_2mortal (newSViv (req->result)));
139
140 if (req->type == REQ_OPEN)
141 {
142 /* convert fd to fh */
143 SV *fh;
144
145 PUTBACK;
146 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
147 SPAGAIN;
148
149 fh = SvREFCNT_inc (POPs);
150
151 PUSHMARK (SP);
152 XPUSHs (sv_2mortal (fh));
153 }
154
155 if (SvOK (req->callback))
156 {
157 PUTBACK;
158 call_sv (req->callback, G_VOID | G_EVAL);
159 SPAGAIN;
160 }
161
162 LEAVE;
163
164 if (req->callback)
165 SvREFCNT_dec (req->callback);
166
167 errno = errorno;
168 count++;
169 }
170
171 prv = req;
172 req = req->next;
173 Safefree (prv);
174
175 /* TODO: croak on errors? */
176 }
177
178 return count;
179}
180
181static void *aio_proc(void *arg);
182
183static void
184start_thread (void)
185{
186 sigset_t fullsigset, oldsigset;
187 pthread_t tid;
188 pthread_attr_t attr;
189
190 pthread_attr_init (&attr);
191 pthread_attr_setstacksize (&attr, STACKSIZE);
192 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
193
194 sigfillset (&fullsigset);
195 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
196
197 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
198 started++;
199
200 sigprocmask (SIG_SETMASK, &oldsigset, 0);
201}
202
203static void
204send_req (aio_req req)
205{
206 nreqs++;
207
208 pthread_mutex_lock (&reqlock);
209
210 req->next = 0;
211
212 if (reqe)
213 {
214 reqe->next = req;
215 reqe = req;
216 }
217 else
218 reqe = reqs = req;
219
220 pthread_cond_signal (&reqwait);
221 pthread_mutex_unlock (&reqlock);
222
223 while (nreqs > max_outstanding)
224 {
225 poll_wait ();
226 poll_cb ();
227 }
228}
229
230static void
231end_thread (void)
232{
233 aio_req req;
234 New (0, req, 1, aio_cb);
235 req->type = REQ_QUIT;
236
237 send_req (req);
238}
239
240/* work around various missing functions */
241
242#if !HAVE_PREADWRITE
243# define pread aio_pread
244# define pwrite aio_pwrite
245
246/*
247 * make our pread/pwrite safe against themselves, but not against
248 * normal read/write by using a mutex. slows down execution a lot,
249 * but that's your problem, not mine.
250 */
251static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
252
253static ssize_t
254pread (int fd, void *buf, size_t count, off_t offset)
255{
256 ssize_t res;
257 off_t ooffset;
258
259 pthread_mutex_lock (&iolock);
260 ooffset = lseek (fd, 0, SEEK_CUR);
261 lseek (fd, offset, SEEK_SET);
262 res = read (fd, buf, count);
263 lseek (fd, ooffset, SEEK_SET);
264 pthread_mutex_unlock (&iolock);
265
266 return res;
267}
268
269static ssize_t
270pwrite (int fd, void *buf, size_t count, off_t offset)
271{
272 ssize_t res;
273 off_t ooffset;
274
275 pthread_mutex_lock (&iolock);
276 ooffset = lseek (fd, 0, SEEK_CUR);
277 lseek (fd, offset, SEEK_SET);
278 res = write (fd, buf, count);
279 lseek (fd, offset, SEEK_SET);
280 pthread_mutex_unlock (&iolock);
281
282 return res;
283}
284#endif
285
286#if !HAVE_FDATASYNC
287# define fdatasync fsync
288#endif
289
290#if !HAVE_READAHEAD
291# define readahead aio_readahead
292
293static char readahead_buf[4096];
294
295static ssize_t
296readahead (int fd, off_t offset, size_t count)
297{
298 while (count > 0)
299 {
300 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
301
302 pread (fd, readahead_buf, len, offset);
303 offset += len;
304 count -= len;
305 }
306
307 errno = 0;
308}
309#endif
310
311static void *
312aio_proc (void *thr_arg)
313{
314 aio_req req;
315 int type;
316
317 do
318 {
319 pthread_mutex_lock (&reqlock);
320
321 for (;;)
322 {
323 req = reqs;
324
325 if (reqs)
326 {
327 reqs = reqs->next;
328 if (!reqs) reqe = 0;
329 }
330
331 if (req)
332 break;
333
334 pthread_cond_wait (&reqwait, &reqlock);
335 }
336
337 pthread_mutex_unlock (&reqlock);
338
339 errno = 0; /* strictly unnecessary */
340
341 type = req->type;
342
343 switch (type)
344 {
345 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
346 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
347
348 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
349
350 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
351 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
352 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
353
354 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
355 case REQ_CLOSE: req->result = close (req->fd); break;
356 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
357
358 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
359 case REQ_FSYNC: req->result = fsync (req->fd); break;
360
361 case REQ_QUIT:
362 break;
363
364 default:
365 req->result = ENOSYS;
366 break;
367 }
368
369 req->errorno = errno;
370
371 pthread_mutex_lock (&reslock);
372
373 req->next = 0;
374
375 if (rese)
376 {
377 rese->next = req;
378 rese = req;
379 } 466 }
380 else 467 else
381 { 468 {
382 rese = ress = req; 469 sv_result = newSViv (req->result);
383 470 SvREADONLY_on (sv_result);
384 /* write a dummy byte to the pipe so fh becomes ready */
385 write (respipe [1], &respipe, 1);
386 } 471 }
387 472
388 pthread_mutex_unlock (&reslock); 473 switch (req->type)
474 {
475 case EIO_WD_OPEN:
476 PUSHs (sv_2mortal (newSVaio_wd (req->wd)));
477 break;
478
479 case EIO_READDIR:
480 {
481 SV *rv = &PL_sv_undef;
482
483 if (req->result >= 0)
484 {
485 int i;
486 char *names = (char *)req->ptr2;
487 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
488 AV *av = newAV ();
489
490 av_extend (av, req->result - 1);
491
492 for (i = 0; i < req->result; ++i)
493 {
494 if (req->int1 & EIO_READDIR_DENTS)
495 {
496 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
497
498 if (req->int1 & EIO_READDIR_CUSTOM2)
499 {
500 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
501 AV *avent = newAV ();
502
503 av_extend (avent, 2);
504
505 if (!sv_type [ent->type])
506 {
507 sv_type [ent->type] = newSViv (ent->type);
508 SvREADONLY_on (sv_type [ent->type]);
509 }
510
511 av_store (avent, 0, namesv);
512 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
513 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
514
515 av_store (av, i, newRV_noinc ((SV *)avent));
516 }
517 else
518 av_store (av, i, namesv);
519
520 ++ent;
521 }
522 else
523 {
524 SV *name = newSVpv (names, 0);
525 av_store (av, i, name);
526 names += SvCUR (name) + 1;
527 }
528 }
529
530 rv = sv_2mortal (newRV_noinc ((SV *)av));
531 }
532
533 PUSHs (rv);
534
535 if (req->int1 & EIO_READDIR_CUSTOM1)
536 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
537 }
538 break;
539
540 case EIO_OPEN:
541 {
542 /* convert fd to fh */
543 SV *fh = &PL_sv_undef;
544
545 if (req->result >= 0)
546 {
547 GV *gv = (GV *)sv_newmortal ();
548 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
549 char sym [64];
550 int symlen;
551
552 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
553 gv_init (gv, aio_stash, sym, symlen, 0);
554
555 symlen = snprintf (
556 sym,
557 sizeof (sym),
558 "%s&=%d",
559 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
560 (int)req->result
561 );
562
563 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
564 fh = (SV *)gv;
565 }
566
567 PUSHs (fh);
568 }
569 break;
570
571 case EIO_STATVFS:
572 case EIO_FSTATVFS:
573 {
574 SV *rv = &PL_sv_undef;
575
576#ifndef _WIN32
577 if (req->result >= 0)
578 {
579 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
580 HV *hv = newHV ();
581
582 rv = sv_2mortal (newRV_noinc ((SV *)hv));
583
584 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
585 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
586 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
587 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
588 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
589 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
590 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
591 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
592 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
593 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
594 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
595 }
596#endif
597
598 PUSHs (rv);
599 }
600
601 break;
602
603 case EIO_GROUP:
604 req->int1 = 2; /* mark group as finished */
605
606 if (req->sv1)
607 {
608 int i;
609 AV *av = (AV *)req->sv1;
610
611 EXTEND (SP, AvFILL (av) + 1);
612 for (i = 0; i <= AvFILL (av); ++i)
613 PUSHs (*av_fetch (av, i, 0));
614 }
615 break;
616
617 case EIO_NOP:
618 case EIO_BUSY:
619 break;
620
621 case EIO_READLINK:
622 case EIO_REALPATH:
623 if (req->result > 0)
624 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
625 break;
626
627 case EIO_STAT:
628 case EIO_LSTAT:
629 case EIO_FSTAT:
630 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
631
632 if (!(PL_laststatval = req->result))
633 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
634 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
635
636 PUSHs (sv_result);
637 break;
638
639 case EIO_READ:
640 {
641 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
642 *SvEND (req->sv2) = 0;
643 SvPOK_only (req->sv2);
644 SvSETMAGIC (req->sv2);
645 PUSHs (sv_result);
646 }
647 break;
648
649 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
650 if (req->result > 0)
651 SvIV_set (sv_result, 0);
652 /* FALLTHROUGH */
653
654 default:
655 PUSHs (sv_result);
656 break;
657 }
658
659 errno = req->errorno;
660
661 PUTBACK;
662 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
663 SPAGAIN;
664
665 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
666 SvREFCNT_dec (sv_result);
667 else
668 sv_result_cache = sv_result;
669
670 FREETMPS;
671 LEAVE;
672
673 PUTBACK;
389 } 674 }
390 while (type != REQ_QUIT); 675
676 return !!SvTRUE (ERRSV);
677}
678
679static void
680req_destroy (aio_req req)
681{
682 if (req->self)
683 {
684 sv_unmagic (req->self, PERL_MAGIC_ext);
685 SvREFCNT_dec (req->self);
686 }
687
688 SvREFCNT_dec (req->sv1);
689 SvREFCNT_dec (req->sv2);
690 SvREFCNT_dec (req->sv3);
691 SvREFCNT_dec (req->sv4);
692 SvREFCNT_dec (req->callback);
693
694 Safefree (req);
695}
696
697static void
698req_cancel_subs (aio_req grp)
699{
700 if (grp->type != EIO_GROUP)
701 return;
702
703 SvREFCNT_dec (grp->sv2);
704 grp->sv2 = 0;
705
706 eio_grp_cancel (grp);
707}
708
709static void ecb_cold
710create_respipe (void)
711{
712 if (s_epipe_renew (&respipe))
713 croak ("IO::AIO: unable to initialize result pipe");
714}
715
716static void
717poll_wait (void)
718{
719 while (eio_nreqs ())
720 {
721 int size;
722
723 X_LOCK (reslock);
724 size = res_queue.size;
725 X_UNLOCK (reslock);
726
727 if (size)
728 return;
729
730 etp_maybe_start_thread ();
731
732 s_epipe_wait (&respipe);
733 }
734}
735
736static int
737poll_cb (void)
738{
739 for (;;)
740 {
741 int res = eio_poll ();
742
743 if (res > 0)
744 croak (0);
745
746 if (!max_outstanding || max_outstanding > eio_nreqs ())
747 return res;
748
749 poll_wait ();
750 }
751}
752
753static void ecb_cold
754reinit (void)
755{
756 create_respipe ();
757
758 if (eio_init (want_poll, done_poll) < 0)
759 croak ("IO::AIO: unable to initialise eio library");
760}
761
762/*****************************************************************************/
763
764#if !_POSIX_MAPPED_FILES
765# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
766# define munmap(addr,length) (errno = ENOSYS, -1)
767#endif
768
769#if !_POSIX_MEMORY_PROTECTION
770# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
771# define PROT_NONE 0
772# define PROT_WRITE 0
773# define MAP_PRIVATE 0
774# define MAP_SHARED 0
775# define MAP_FIXED 0
776#endif
777
778#define MMAP_MAGIC PERL_MAGIC_ext
779
780static int ecb_cold
781mmap_free (pTHX_ SV *sv, MAGIC *mg)
782{
783 int old_errno = errno;
784 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
785 errno = old_errno;
786
787 mg->mg_obj = 0; /* just in case */
788
789 SvREADONLY_off (sv);
790
791 if (SvPVX (sv) != mg->mg_ptr)
792 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
793
794 SvCUR_set (sv, 0);
795 SvPVX (sv) = 0;
796 SvOK_off (sv);
391 797
392 return 0; 798 return 0;
393} 799}
394 800
801static MGVTBL mmap_vtbl = {
802 0, 0, 0, 0, mmap_free
803};
804
805/*****************************************************************************/
806
807static SV *
808get_cb (SV *cb_sv)
809{
810 SvGETMAGIC (cb_sv);
811 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
812}
813
814#define dREQ \
815 SV *cb_cv; \
816 aio_req req; \
817 int req_pri = next_pri; \
818 next_pri = EIO_PRI_DEFAULT; \
819 \
820 cb_cv = get_cb (callback); \
821 \
822 Newz (0, req, 1, eio_req); \
823 if (!req) \
824 croak ("out of memory during eio_req allocation"); \
825 \
826 req->callback = SvREFCNT_inc (cb_cv); \
827 req->pri = req_pri
828
829#define REQ_SEND \
830 PUTBACK; \
831 req_submit (req); \
832 SPAGAIN; \
833 \
834 if (GIMME_V != G_VOID) \
835 XPUSHs (req_sv (req, aio_req_stash));
836
837ecb_inline void
838req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
839{
840 if (expect_false (SvROK (path)))
841 {
842 AV *av = (AV *)SvRV (path);
843 SV *wdob;
844
845 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
846 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
847
848 path = AvARRAY (av)[1];
849 wdob = AvARRAY (av)[0];
850
851 if (SvOK (wdob))
852 {
853 *wd = SvAIO_WD (wdob);
854 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
855 }
856 else
857 *wd = EIO_INVALID_WD;
858 }
859
860 *pathsv = newSVsv (path);
861 *ptr = SvPVbyte_nolen (*pathsv);
862}
863
864static void ecb_noinline
865req_set_path1 (aio_req req, SV *path)
866{
867 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
868}
869
870static void ecb_noinline
871req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
872{
873 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
874
875 switch (SvTYPE (rv))
876 {
877 case SVt_PVIO:
878 case SVt_PVLV:
879 case SVt_PVGV:
880 req->type = type_fh;
881 req->sv1 = newSVsv (fh_or_path);
882 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
883 break;
884
885 default:
886 req->type = type_path;
887 req_set_path1 (req, fh_or_path);
888 break;
889 }
890}
891
892XS(boot_IO__AIO) ecb_cold;
893
395MODULE = IO::AIO PACKAGE = IO::AIO 894MODULE = IO::AIO PACKAGE = IO::AIO
396 895
397PROTOTYPES: ENABLE 896PROTOTYPES: ENABLE
398 897
399BOOT: 898BOOT:
400{ 899{
401 if (pipe (respipe)) 900 static const struct {
402 croak ("unable to initialize result pipe"); 901 const char *name;
902 IV iv;
903 } *civ, const_iv[] = {
904# define const_niv(name, value) { # name, (IV) value },
905# define const_iv(name) { # name, (IV) name },
906# define const_eio(name) { # name, (IV) EIO_ ## name },
907 const_iv (EXDEV)
908 const_iv (ENOSYS)
909 const_iv (O_RDONLY)
910 const_iv (O_WRONLY)
911 const_iv (O_RDWR)
912 const_iv (O_CREAT)
913 const_iv (O_TRUNC)
914 const_iv (O_EXCL)
915 const_iv (O_APPEND)
403 916
404 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 917 const_iv (O_ASYNC)
405 croak ("cannot set result pipe to nonblocking mode"); 918 const_iv (O_DIRECT)
919 const_iv (O_NOATIME)
406 920
407 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 921 const_iv (O_CLOEXEC)
408 croak ("cannot set result pipe to nonblocking mode"); 922 const_iv (O_NOCTTY)
409} 923 const_iv (O_NOFOLLOW)
924 const_iv (O_NONBLOCK)
925 const_iv (O_EXEC)
926 const_iv (O_SEARCH)
927 const_iv (O_DIRECTORY)
928 const_iv (O_DSYNC)
929 const_iv (O_RSYNC)
930 const_iv (O_SYNC)
931 const_iv (O_TTY_INIT)
410 932
933 const_iv (S_IFIFO)
934 const_iv (S_IFCHR)
935 const_iv (S_IFBLK)
936 const_iv (S_IFLNK)
937 const_iv (S_IFREG)
938 const_iv (S_IFDIR)
939 const_iv (S_IFWHT)
940 const_iv (S_IFSOCK)
941 const_iv (S_IFMT)
942
943 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
944 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
945 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
946 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
947 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
948 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
949
950 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
951 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
952 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
953 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
954 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
955
956 const_iv (ST_RDONLY)
957 const_iv (ST_NOSUID)
958 const_iv (ST_NODEV)
959 const_iv (ST_NOEXEC)
960 const_iv (ST_SYNCHRONOUS)
961 const_iv (ST_MANDLOCK)
962 const_iv (ST_WRITE)
963 const_iv (ST_APPEND)
964 const_iv (ST_IMMUTABLE)
965 const_iv (ST_NOATIME)
966 const_iv (ST_NODIRATIME)
967 const_iv (ST_RELATIME)
968
969 const_iv (PROT_NONE)
970 const_iv (PROT_EXEC)
971 const_iv (PROT_READ)
972 const_iv (PROT_WRITE)
973
974 /*const_iv (MAP_FIXED)*/
975 const_iv (MAP_PRIVATE)
976 const_iv (MAP_SHARED)
977 const_iv (MAP_ANONYMOUS)
978
979 /* linuxish */
980 const_iv (MAP_HUGETLB)
981 const_iv (MAP_LOCKED)
982 const_iv (MAP_NORESERVE)
983 const_iv (MAP_POPULATE)
984 const_iv (MAP_NONBLOCK)
985
986 const_eio (MCL_FUTURE)
987 const_eio (MCL_CURRENT)
988
989 const_eio (MS_ASYNC)
990 const_eio (MS_INVALIDATE)
991 const_eio (MS_SYNC)
992
993 const_eio (MT_MODIFY)
994
995 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
996 const_eio (SYNC_FILE_RANGE_WRITE)
997 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
998
999 const_eio (FALLOC_FL_KEEP_SIZE)
1000
1001 const_eio (READDIR_DENTS)
1002 const_eio (READDIR_DIRS_FIRST)
1003 const_eio (READDIR_STAT_ORDER)
1004 const_eio (READDIR_FOUND_UNKNOWN)
1005
1006 const_eio (DT_UNKNOWN)
1007 const_eio (DT_FIFO)
1008 const_eio (DT_CHR)
1009 const_eio (DT_DIR)
1010 const_eio (DT_BLK)
1011 const_eio (DT_REG)
1012 const_eio (DT_LNK)
1013 const_eio (DT_SOCK)
1014 const_eio (DT_WHT)
1015 };
1016
1017 aio_stash = gv_stashpv ("IO::AIO" , 1);
1018 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1019 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1020 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1021
1022 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1023 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1024
1025 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1026
1027 reinit ();
1028}
1029
411void 1030void
412min_parallel(nthreads) 1031reinit ()
413 int nthreads 1032 PROTOTYPE:
1033
1034void
1035max_poll_reqs (unsigned int nreqs)
414 PROTOTYPE: $ 1036 PROTOTYPE: $
415 CODE: 1037 CODE:
416 while (nthreads > started) 1038 eio_set_max_poll_reqs (nreqs);
417 start_thread ();
418 1039
419void 1040void
420max_parallel(nthreads) 1041max_poll_time (double nseconds)
421 int nthreads
422 PROTOTYPE: $ 1042 PROTOTYPE: $
423 CODE: 1043 CODE:
1044 eio_set_max_poll_time (nseconds);
1045
1046void
1047min_parallel (unsigned int nthreads)
1048 PROTOTYPE: $
1049 CODE:
1050 eio_set_min_parallel (nthreads);
1051
1052void
1053max_parallel (unsigned int nthreads)
1054 PROTOTYPE: $
1055 CODE:
1056 eio_set_max_parallel (nthreads);
1057
1058void
1059max_idle (unsigned int nthreads)
1060 PROTOTYPE: $
1061 CODE:
1062 eio_set_max_idle (nthreads);
1063
1064void
1065idle_timeout (unsigned int seconds)
1066 PROTOTYPE: $
1067 CODE:
1068 eio_set_idle_timeout (seconds);
1069
1070void
1071max_outstanding (unsigned int maxreqs)
1072 PROTOTYPE: $
1073 CODE:
1074 max_outstanding = maxreqs;
1075
1076void
1077aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1078 PPCODE:
424{ 1079{
425 int cur = started; 1080 dREQ;
426 while (cur > nthreads) 1081
427 { 1082 req->type = EIO_WD_OPEN;
428 end_thread (); 1083 req_set_path1 (req, pathname);
1084
1085 REQ_SEND;
1086}
1087
1088void
1089aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1090 PPCODE:
1091{
1092 dREQ;
1093
1094 req->type = EIO_OPEN;
1095 req_set_path1 (req, pathname);
1096 req->int1 = flags;
1097 req->int2 = mode;
1098
1099 REQ_SEND;
1100}
1101
1102void
1103aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1104 ALIAS:
1105 aio_fsync = EIO_FSYNC
1106 aio_fdatasync = EIO_FDATASYNC
1107 aio_syncfs = EIO_SYNCFS
1108 PPCODE:
1109{
1110 int fd = s_fileno_croak (fh, 0);
1111 dREQ;
1112
1113 req->type = ix;
1114 req->sv1 = newSVsv (fh);
1115 req->int1 = fd;
1116
1117 REQ_SEND (req);
1118}
1119
1120void
1121aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1122 PPCODE:
1123{
1124 int fd = s_fileno_croak (fh, 0);
1125 dREQ;
1126
1127 req->type = EIO_SYNC_FILE_RANGE;
1128 req->sv1 = newSVsv (fh);
1129 req->int1 = fd;
1130 req->offs = offset;
1131 req->size = nbytes;
1132 req->int2 = flags;
1133
1134 REQ_SEND (req);
1135}
1136
1137void
1138aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1139 PPCODE:
1140{
1141 int fd = s_fileno_croak (fh, 0);
1142 dREQ;
1143
1144 req->type = EIO_FALLOCATE;
1145 req->sv1 = newSVsv (fh);
1146 req->int1 = fd;
1147 req->int2 = mode;
1148 req->offs = offset;
1149 req->size = len;
1150
1151 REQ_SEND (req);
1152}
1153
1154void
1155aio_close (SV *fh, SV *callback=&PL_sv_undef)
1156 PPCODE:
1157{
1158 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1159 int fd = s_fileno_croak (fh, 0);
1160 dREQ;
1161
1162 if (expect_false (close_fd < 0))
1163 {
1164 int pipefd [2];
1165
1166 if (
1167#ifdef _WIN32
1168 _pipe (pipefd, 1, _O_BINARY) < 0
1169#else
1170 pipe (pipefd) < 0
1171 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1172#endif
1173 || close (pipefd [1]) < 0
429 cur--; 1174 )
1175 abort (); /*D*/
1176
1177 close_fd = pipefd [0];
430 } 1178 }
431 1179
432 while (started > nthreads) 1180 req->type = EIO_DUP2;
1181 req->int1 = close_fd;
1182 req->sv2 = newSVsv (fh);
1183 req->int2 = fd;
1184
1185 REQ_SEND (req);
1186}
1187
1188void
1189aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1190 ALIAS:
1191 aio_read = EIO_READ
1192 aio_write = EIO_WRITE
1193 PPCODE:
1194{
1195 STRLEN svlen;
1196 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1197 char *svptr = SvPVbyte (data, svlen);
1198 UV len = SvUV (length);
1199
1200 if (dataoffset < 0)
1201 dataoffset += svlen;
1202
1203 if (dataoffset < 0 || dataoffset > svlen)
1204 croak ("dataoffset outside of data scalar");
1205
1206 if (ix == EIO_WRITE)
1207 {
1208 /* write: check length and adjust. */
1209 if (!SvOK (length) || len + dataoffset > svlen)
1210 len = svlen - dataoffset;
1211 }
1212 else
1213 {
1214 /* read: check type and grow scalar as necessary */
1215 SvUPGRADE (data, SVt_PV);
1216 svptr = SvGROW (data, len + dataoffset + 1);
1217 }
1218
1219 {
1220 dREQ;
1221
1222 req->type = ix;
1223 req->sv1 = newSVsv (fh);
1224 req->int1 = fd;
1225 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1226 req->size = len;
1227 req->sv2 = SvREFCNT_inc (data);
1228 req->ptr2 = (char *)svptr + dataoffset;
1229 req->stroffset = dataoffset;
1230
1231 if (!SvREADONLY (data))
1232 {
1233 SvREADONLY_on (data);
1234 req->flags |= FLAG_SV2_RO_OFF;
1235 }
1236
1237 REQ_SEND;
1238 }
1239}
1240
1241void
1242aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1243 ALIAS:
1244 aio_readlink = EIO_READLINK
1245 aio_realpath = EIO_REALPATH
1246 PPCODE:
1247{
1248 dREQ;
1249
1250 req->type = ix;
1251 req_set_path1 (req, pathname);
1252
1253 REQ_SEND;
1254}
1255
1256void
1257aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1258 PPCODE:
1259{
1260 int ifd = s_fileno_croak (in_fh , 0);
1261 int ofd = s_fileno_croak (out_fh, 1);
1262 dREQ;
1263
1264 req->type = EIO_SENDFILE;
1265 req->sv1 = newSVsv (out_fh);
1266 req->int1 = ofd;
1267 req->sv2 = newSVsv (in_fh);
1268 req->int2 = ifd;
1269 req->offs = in_offset;
1270 req->size = length;
1271
1272 REQ_SEND;
1273}
1274
1275void
1276aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1277 PPCODE:
1278{
1279 int fd = s_fileno_croak (fh, 0);
1280 dREQ;
1281
1282 req->type = EIO_READAHEAD;
1283 req->sv1 = newSVsv (fh);
1284 req->int1 = fd;
1285 req->offs = offset;
1286 req->size = length;
1287
1288 REQ_SEND;
1289}
1290
1291void
1292aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1293 ALIAS:
1294 aio_stat = EIO_STAT
1295 aio_lstat = EIO_LSTAT
1296 aio_statvfs = EIO_STATVFS
1297 PPCODE:
1298{
1299 dREQ;
1300
1301 req->sv1 = newSVsv (fh_or_path);
1302 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1303 REQ_SEND;
1304}
1305
1306UV
1307major (UV dev)
1308 ALIAS:
1309 minor = 1
1310 CODE:
1311 RETVAL = ix ? major (dev) : minor (dev);
1312 OUTPUT:
1313 RETVAL
1314
1315UV
1316makedev (UV maj, UV min)
1317 CODE:
1318 RETVAL = makedev (maj, min);
1319 OUTPUT:
1320 RETVAL
1321
1322void
1323aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1324 PPCODE:
1325{
1326 dREQ;
1327
1328 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1329 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1330 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1331
1332 REQ_SEND;
1333}
1334
1335void
1336aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1337 PPCODE:
1338{
1339 dREQ;
1340
1341 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1342 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1343
1344 REQ_SEND;
1345}
1346
1347void
1348aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1349 PPCODE:
1350{
1351 dREQ;
1352
1353 req->int2 = mode;
1354 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1355
1356 REQ_SEND;
1357}
1358
1359void
1360aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1361 PPCODE:
1362{
1363 dREQ;
1364
1365 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1366 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1367 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1368
1369 REQ_SEND;
1370}
1371
1372void
1373aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1374 PPCODE:
1375{
1376 dREQ;
1377
1378 req->type = EIO_READDIR;
1379 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1380
1381 if (flags & EIO_READDIR_DENTS)
1382 req->int1 |= EIO_READDIR_CUSTOM2;
1383
1384 req_set_path1 (req, pathname);
1385
1386 REQ_SEND;
1387}
1388
1389void
1390aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1391 PPCODE:
1392{
1393 dREQ;
1394
1395 req->type = EIO_MKDIR;
1396 req->int2 = mode;
1397 req_set_path1 (req, pathname);
1398
1399 REQ_SEND;
1400}
1401
1402void
1403aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1404 ALIAS:
1405 aio_unlink = EIO_UNLINK
1406 aio_rmdir = EIO_RMDIR
1407 aio_readdir = EIO_READDIR
1408 PPCODE:
1409{
1410 dREQ;
1411
1412 req->type = ix;
1413 req_set_path1 (req, pathname);
1414
1415 REQ_SEND;
1416}
1417
1418void
1419aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1420 ALIAS:
1421 aio_link = EIO_LINK
1422 aio_symlink = EIO_SYMLINK
1423 aio_rename = EIO_RENAME
1424 PPCODE:
1425{
1426 dREQ;
1427 eio_wd wd2 = 0;
1428
1429 req->type = ix;
1430 req_set_path1 (req, oldpath);
1431 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1432 req->int3 = (long)wd2;
1433
1434 REQ_SEND;
1435}
1436
1437void
1438aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1439 PPCODE:
1440{
1441 dREQ;
1442
1443 req->type = EIO_MKNOD;
1444 req->int2 = (mode_t)mode;
1445 req->offs = dev;
1446 req_set_path1 (req, pathname);
1447
1448 REQ_SEND;
1449}
1450
1451void
1452aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1453 ALIAS:
1454 aio_mtouch = EIO_MTOUCH
1455 aio_msync = EIO_MSYNC
1456 PPCODE:
1457{
1458 STRLEN svlen;
1459 char *svptr = SvPVbyte (data, svlen);
1460 UV len = SvUV (length);
1461
1462 if (offset < 0)
1463 offset += svlen;
1464
1465 if (offset < 0 || offset > svlen)
1466 croak ("offset outside of scalar");
1467
1468 if (!SvOK (length) || len + offset > svlen)
1469 len = svlen - offset;
1470
1471 {
1472 dREQ;
1473
1474 req->type = ix;
1475 req->sv2 = SvREFCNT_inc (data);
1476 req->ptr2 = (char *)svptr + offset;
1477 req->size = len;
1478 req->int1 = flags;
1479
1480 REQ_SEND;
1481 }
1482}
1483
1484void
1485aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1486 PPCODE:
1487{
1488 STRLEN svlen;
1489 char *svptr = SvPVbyte (data, svlen);
1490 UV len = SvUV (length);
1491
1492 if (offset < 0)
1493 offset += svlen;
1494
1495 if (offset < 0 || offset > svlen)
1496 croak ("offset outside of scalar");
1497
1498 if (!SvOK (length) || len + offset > svlen)
1499 len = svlen - offset;
1500
1501 {
1502 dREQ;
1503
1504 req->type = EIO_MLOCK;
1505 req->sv2 = SvREFCNT_inc (data);
1506 req->ptr2 = (char *)svptr + offset;
1507 req->size = len;
1508
1509 REQ_SEND;
1510 }
1511}
1512
1513void
1514aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1515 PPCODE:
1516{
1517 dREQ;
1518
1519 req->type = EIO_MLOCKALL;
1520 req->int1 = flags;
1521
1522 REQ_SEND;
1523}
1524
1525void
1526aio_busy (double delay, SV *callback=&PL_sv_undef)
1527 PPCODE:
1528{
1529 dREQ;
1530
1531 req->type = EIO_BUSY;
1532 req->nv1 = delay < 0. ? 0. : delay;
1533
1534 REQ_SEND;
1535}
1536
1537void
1538aio_group (SV *callback=&PL_sv_undef)
1539 PPCODE:
1540{
1541 dREQ;
1542
1543 req->type = EIO_GROUP;
1544
1545 req_submit (req);
1546 XPUSHs (req_sv (req, aio_grp_stash));
1547}
1548
1549void
1550aio_nop (SV *callback=&PL_sv_undef)
1551 ALIAS:
1552 aio_nop = EIO_NOP
1553 aio_sync = EIO_SYNC
1554 PPCODE:
1555{
1556 dREQ;
1557
1558 req->type = ix;
1559
1560 REQ_SEND;
1561}
1562
1563int
1564aioreq_pri (int pri = 0)
1565 CODE:
1566 RETVAL = next_pri;
1567 if (items > 0)
1568 {
1569 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1570 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1571 next_pri = pri;
1572 }
1573 OUTPUT:
1574 RETVAL
1575
1576void
1577aioreq_nice (int nice = 0)
1578 CODE:
1579 nice = next_pri - nice;
1580 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1581 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1582 next_pri = nice;
1583
1584void
1585flush ()
1586 CODE:
1587 while (eio_nreqs ())
433 { 1588 {
434 poll_wait (); 1589 poll_wait ();
435 poll_cb (); 1590 poll_cb ();
436 } 1591 }
437}
438 1592
439int 1593int
440max_outstanding(nreqs)
441 int nreqs
442 PROTOTYPE: $
443 CODE:
444 RETVAL = max_outstanding;
445 max_outstanding = nreqs;
446
447void
448aio_open(pathname,flags,mode,callback=&PL_sv_undef)
449 SV * pathname
450 int flags
451 int mode
452 SV * callback
453 PROTOTYPE: $$$;$
454 CODE:
455{
456 aio_req req;
457
458 Newz (0, req, 1, aio_cb);
459
460 if (!req)
461 croak ("out of memory during aio_req allocation");
462
463 req->type = REQ_OPEN;
464 req->data = newSVsv (pathname);
465 req->dataptr = SvPV_nolen (req->data);
466 req->fd = flags;
467 req->mode = mode;
468 req->callback = SvREFCNT_inc (callback);
469
470 send_req (req);
471}
472
473void
474aio_close(fh,callback=&PL_sv_undef)
475 SV * fh
476 SV * callback
477 PROTOTYPE: $;$
478 ALIAS:
479 aio_close = REQ_CLOSE
480 aio_fsync = REQ_FSYNC
481 aio_fdatasync = REQ_FDATASYNC
482 CODE:
483{
484 aio_req req;
485
486 Newz (0, req, 1, aio_cb);
487
488 if (!req)
489 croak ("out of memory during aio_req allocation");
490
491 req->type = ix;
492 req->fh = newSVsv (fh);
493 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
494 req->callback = SvREFCNT_inc (callback);
495
496 send_req (req);
497}
498
499void
500aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
501 SV * fh
502 UV offset
503 IV length
504 SV * data
505 IV dataoffset
506 SV * callback
507 ALIAS:
508 aio_read = REQ_READ
509 aio_write = REQ_WRITE
510 PROTOTYPE: $$$$$;$
511 CODE:
512{
513 aio_req req;
514 STRLEN svlen;
515 char *svptr = SvPV (data, svlen);
516
517 SvUPGRADE (data, SVt_PV);
518 SvPOK_on (data);
519
520 if (dataoffset < 0)
521 dataoffset += svlen;
522
523 if (dataoffset < 0 || dataoffset > svlen)
524 croak ("data offset outside of string");
525
526 if (ix == REQ_WRITE)
527 {
528 /* write: check length and adjust. */
529 if (length < 0 || length + dataoffset > svlen)
530 length = svlen - dataoffset;
531 }
532 else
533 {
534 /* read: grow scalar as necessary */
535 svptr = SvGROW (data, length + dataoffset);
536 }
537
538 if (length < 0)
539 croak ("length must not be negative");
540
541 Newz (0, req, 1, aio_cb);
542
543 if (!req)
544 croak ("out of memory during aio_req allocation");
545
546 req->type = ix;
547 req->fh = newSVsv (fh);
548 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
549 : IoOFP (sv_2io (fh)));
550 req->offset = offset;
551 req->length = length;
552 req->data = SvREFCNT_inc (data);
553 req->dataptr = (char *)svptr + dataoffset;
554 req->callback = SvREFCNT_inc (callback);
555
556 send_req (req);
557}
558
559void
560aio_readahead(fh,offset,length,callback=&PL_sv_undef)
561 SV * fh
562 UV offset
563 IV length
564 SV * callback
565 PROTOTYPE: $$$;$
566 CODE:
567{
568 aio_req req;
569
570 if (length < 0)
571 croak ("length must not be negative");
572
573 Newz (0, req, 1, aio_cb);
574
575 if (!req)
576 croak ("out of memory during aio_req allocation");
577
578 req->type = REQ_READAHEAD;
579 req->fh = newSVsv (fh);
580 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
581 req->offset = offset;
582 req->length = length;
583 req->callback = SvREFCNT_inc (callback);
584
585 send_req (req);
586}
587
588void
589aio_stat(fh_or_path,callback=&PL_sv_undef)
590 SV * fh_or_path
591 SV * callback
592 ALIAS:
593 aio_stat = REQ_STAT
594 aio_lstat = REQ_LSTAT
595 CODE:
596{
597 aio_req req;
598
599 Newz (0, req, 1, aio_cb);
600
601 if (!req)
602 croak ("out of memory during aio_req allocation");
603
604 New (0, req->statdata, 1, Stat_t);
605
606 if (!req->statdata)
607 croak ("out of memory during aio_req->statdata allocation");
608
609 if (SvPOK (fh_or_path))
610 {
611 req->type = ix;
612 req->data = newSVsv (fh_or_path);
613 req->dataptr = SvPV_nolen (req->data);
614 }
615 else
616 {
617 req->type = REQ_FSTAT;
618 req->fh = newSVsv (fh_or_path);
619 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
620 }
621
622 req->callback = SvREFCNT_inc (callback);
623
624 send_req (req);
625}
626
627void
628aio_unlink(pathname,callback=&PL_sv_undef)
629 SV * pathname
630 SV * callback
631 CODE:
632{
633 aio_req req;
634
635 Newz (0, req, 1, aio_cb);
636
637 if (!req)
638 croak ("out of memory during aio_req allocation");
639
640 req->type = REQ_UNLINK;
641 req->data = newSVsv (pathname);
642 req->dataptr = SvPV_nolen (req->data);
643 req->callback = SvREFCNT_inc (callback);
644
645 send_req (req);
646}
647
648void
649flush()
650 PROTOTYPE:
651 CODE:
652 while (nreqs)
653 {
654 poll_wait ();
655 poll_cb ();
656 }
657
658void
659poll() 1594poll ()
660 PROTOTYPE:
661 CODE: 1595 CODE:
662 if (nreqs)
663 {
664 poll_wait (); 1596 poll_wait ();
665 poll_cb ();
666 }
667
668int
669poll_fileno()
670 PROTOTYPE:
671 CODE:
672 RETVAL = respipe [0];
673 OUTPUT:
674 RETVAL
675
676int
677poll_cb(...)
678 PROTOTYPE:
679 CODE:
680 RETVAL = poll_cb (); 1597 RETVAL = poll_cb ();
681 OUTPUT: 1598 OUTPUT:
682 RETVAL 1599 RETVAL
683 1600
684void
685poll_wait()
686 PROTOTYPE:
687 CODE:
688 if (nreqs)
689 poll_wait ();
690
691int 1601int
692nreqs() 1602poll_fileno ()
693 PROTOTYPE:
694 CODE: 1603 CODE:
695 RETVAL = nreqs; 1604 RETVAL = s_epipe_fd (&respipe);
696 OUTPUT: 1605 OUTPUT:
697 RETVAL 1606 RETVAL
698 1607
1608int
1609poll_cb (...)
1610 PROTOTYPE:
1611 CODE:
1612 RETVAL = poll_cb ();
1613 OUTPUT:
1614 RETVAL
1615
1616void
1617poll_wait ()
1618 CODE:
1619 poll_wait ();
1620
1621int
1622nreqs ()
1623 CODE:
1624 RETVAL = eio_nreqs ();
1625 OUTPUT:
1626 RETVAL
1627
1628int
1629nready ()
1630 CODE:
1631 RETVAL = eio_nready ();
1632 OUTPUT:
1633 RETVAL
1634
1635int
1636npending ()
1637 CODE:
1638 RETVAL = eio_npending ();
1639 OUTPUT:
1640 RETVAL
1641
1642int
1643nthreads ()
1644 CODE:
1645 RETVAL = eio_nthreads ();
1646 OUTPUT:
1647 RETVAL
1648
1649int
1650fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1651 CODE:
1652 RETVAL = posix_fadvise (fh, offset, length, advice);
1653 OUTPUT:
1654 RETVAL
1655
1656IV
1657sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1658 CODE:
1659 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1660 OUTPUT:
1661 RETVAL
1662
1663void
1664mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1665 PPCODE:
1666 sv_unmagic (scalar, MMAP_MAGIC);
1667{
1668 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1669 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1670 if (addr == (void *)-1)
1671 XSRETURN_NO;
1672
1673 sv_force_normal (scalar);
1674
1675 /* we store the length in mg_obj, as namlen is I32 :/ */
1676 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1677 ->mg_obj = (SV *)length;
1678
1679 SvUPGRADE (scalar, SVt_PV); /* nop... */
1680
1681 if (!(prot & PROT_WRITE))
1682 SvREADONLY_on (scalar);
1683
1684 if (SvLEN (scalar))
1685 Safefree (SvPVX (scalar));
1686
1687 SvPVX (scalar) = (char *)addr;
1688 SvCUR_set (scalar, length);
1689 SvLEN_set (scalar, 0);
1690 SvPOK_only (scalar);
1691
1692 XSRETURN_YES;
1693}
1694
1695void
1696munmap (SV *scalar)
1697 CODE:
1698 sv_unmagic (scalar, MMAP_MAGIC);
1699
1700int
1701madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1702 ALIAS:
1703 mprotect = 1
1704 CODE:
1705{
1706 STRLEN svlen;
1707 void *addr = SvPVbyte (scalar, svlen);
1708 size_t len = SvUV (length);
1709
1710 if (offset < 0)
1711 offset += svlen;
1712
1713 if (offset < 0 || offset > svlen)
1714 croak ("offset outside of scalar");
1715
1716 if (!SvOK (length) || len + offset > svlen)
1717 len = svlen - offset;
1718
1719 addr = (void *)(((intptr_t)addr) + offset);
1720 eio_page_align (&addr, &len);
1721
1722 switch (ix)
1723 {
1724 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1725 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1726 }
1727}
1728 OUTPUT:
1729 RETVAL
1730
1731int
1732munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1733 CODE:
1734{
1735 STRLEN svlen;
1736 void *addr = SvPVbyte (scalar, svlen);
1737 size_t len = SvUV (length);
1738
1739 if (offset < 0)
1740 offset += svlen;
1741
1742 if (offset < 0 || offset > svlen)
1743 croak ("offset outside of scalar");
1744
1745 if (!SvOK (length) || len + offset > svlen)
1746 len = svlen - offset;
1747
1748 addr = (void *)(((intptr_t)addr) + offset);
1749 eio_page_align (&addr, &len);
1750#if _POSIX_MEMLOCK_RANGE
1751 RETVAL = munlock (addr, len);
1752#else
1753 RETVAL = ((errno = ENOSYS), -1);
1754#endif
1755}
1756 OUTPUT:
1757 RETVAL
1758
1759int
1760munlockall ()
1761 CODE:
1762#if _POSIX_MEMLOCK
1763 munlockall ();
1764#else
1765 RETVAL = -1;
1766 errno = ENOSYS;
1767#endif
1768 OUTPUT:
1769 RETVAL
1770
1771void _on_next_submit (SV *cb)
1772 CODE:
1773 SvREFCNT_dec (on_next_submit);
1774 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1775
1776PROTOTYPES: DISABLE
1777
1778MODULE = IO::AIO PACKAGE = IO::AIO::WD
1779
1780BOOT:
1781{
1782 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1783 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1784}
1785
1786void
1787DESTROY (SV *self)
1788 CODE:
1789{
1790 aio_wd wd = SvAIO_WD (self);
1791#if HAVE_AT
1792 SV *callback = &PL_sv_undef;
1793 dREQ; /* clobbers next_pri :/ */
1794 req->type = EIO_WD_CLOSE;
1795 req->wd = wd;
1796 REQ_SEND;
1797#else
1798 eio_wd_close_sync (wd);
1799#endif
1800}
1801
1802MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1803
1804void
1805cancel (aio_req_ornot req)
1806 CODE:
1807 eio_cancel (req);
1808
1809void
1810cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1811 PPCODE:
1812{
1813 if (GIMME_V != G_VOID)
1814 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1815
1816 if (items > 1)
1817 {
1818 SV *cb_cv =get_cb (callback);
1819
1820 SvREFCNT_dec (req->callback);
1821 req->callback = SvREFCNT_inc (cb_cv);
1822 }
1823}
1824
1825MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1826
1827void
1828add (aio_req grp, ...)
1829 PPCODE:
1830{
1831 int i;
1832
1833 if (grp->int1 == 2)
1834 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1835
1836 for (i = 1; i < items; ++i )
1837 {
1838 aio_req req;
1839
1840 if (GIMME_V != G_VOID)
1841 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1842
1843 req = SvAIO_REQ (ST (i));
1844
1845 if (req)
1846 eio_grp_add (grp, req);
1847 }
1848}
1849
1850void
1851cancel_subs (aio_req_ornot req)
1852 CODE:
1853 req_cancel_subs (req);
1854
1855void
1856result (aio_req grp, ...)
1857 CODE:
1858{
1859 int i;
1860 AV *av;
1861
1862 grp->errorno = errno;
1863
1864 av = newAV ();
1865 av_extend (av, items - 1);
1866
1867 for (i = 1; i < items; ++i )
1868 av_push (av, newSVsv (ST (i)));
1869
1870 SvREFCNT_dec (grp->sv1);
1871 grp->sv1 = (SV *)av;
1872}
1873
1874void
1875errno (aio_req grp, int errorno = errno)
1876 CODE:
1877 grp->errorno = errorno;
1878
1879void
1880limit (aio_req grp, int limit)
1881 CODE:
1882 eio_grp_limit (grp, limit);
1883
1884void
1885feed (aio_req grp, SV *callback=&PL_sv_undef)
1886 CODE:
1887{
1888 SvREFCNT_dec (grp->sv2);
1889 grp->sv2 = newSVsv (callback);
1890 grp->feed = aio_grp_feed;
1891
1892 if (grp->int2 <= 0)
1893 grp->int2 = 2;
1894
1895 eio_grp_limit (grp, grp->int2);
1896}
1897

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