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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.14 by root, Sat Jul 23 18:15:36 2005 UTC vs.
Revision 1.218 by root, Fri Jul 27 17:54:40 2012 UTC

1#include "libeio/xthread.h"
2
3#include <errno.h>
4
5#include "EXTERN.h"
1#include "perl.h" 6#include "perl.h"
2#include "XSUB.h" 7#include "XSUB.h"
3 8
9#include "schmorp.h"
10
11#include <stddef.h>
12#include <stdlib.h>
13#include <errno.h>
4#include <sys/types.h> 14#include <sys/types.h>
5#include <sys/stat.h> 15#include <sys/stat.h>
6
7#include <unistd.h> 16#include <limits.h>
8#include <fcntl.h> 17#include <fcntl.h>
9#include <signal.h>
10#include <sched.h> 18#include <sched.h>
19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
11#if __linux 24#if __linux__
12#include <sys/syscall.h> 25# include <linux/fs.h>
26# ifdef FS_IOC_FIEMAP
27# include <linux/types.h>
28# include <linux/fiemap.h>
29# define HAVE_FIEMAP 1
13#endif 30# endif
31#endif
14 32
15#include <pthread.h> 33/* perl namespace pollution */
34#undef VERSION
16 35
17typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 36/* perl stupidly overrides readdir and maybe others */
18typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 37/* with thread-unsafe versions, imagine that :( */
19typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 38#undef readdir
39#undef opendir
40#undef closedir
20 41
21#if __ia64 42#ifdef _WIN32
22# define STACKSIZE 65536 43
44 // perl overrides all those nice libc functions
45
46 #undef malloc
47 #undef free
48 #undef open
49 #undef read
50 #undef write
51 #undef send
52 #undef recv
53 #undef stat
54 #undef lstat
55 #undef fstat
56 #undef truncate
57 #undef ftruncate
58 #undef open
59 #undef link
60 #undef close
61 #undef unlink
62 #undef mkdir
63 #undef rmdir
64 #undef rename
65 #undef lseek
66 #undef opendir
67 #undef readdir
68 #undef closedir
69 #undef chmod
70 #undef fchmod
71 #undef dup
72 #undef dup2
73 #undef abort
74 #undef pipe
75
76 #define EIO_STRUCT_STAT struct _stati64
77 #define EIO_STRUCT_STATI64
78
23#else 79#else
24# define STACKSIZE 4096 80
81 #include <sys/time.h>
82 #include <sys/select.h>
83 #include <unistd.h>
84 #include <utime.h>
85 #include <signal.h>
86
87 #define EIO_STRUCT_STAT Stat_t
88
89#endif
90
91/*****************************************************************************/
92
93#if __GNUC__ >= 3
94# define expect(expr,value) __builtin_expect ((expr),(value))
95#else
96# define expect(expr,value) (expr)
97#endif
98
99#define expect_false(expr) expect ((expr) != 0, 0)
100#define expect_true(expr) expect ((expr) != 0, 1)
101
102/*****************************************************************************/
103
104typedef SV SV8; /* byte-sv, used for argument-checking */
105typedef int aio_rfd; /* read file desriptor */
106typedef int aio_wfd; /* write file descriptor */
107
108static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109
110#define EIO_REQ_MEMBERS \
111 SV *callback; \
112 SV *sv1, *sv2; \
113 SV *sv3, *sv4; \
114 STRLEN stroffset; \
115 SV *self;
116
117#define EIO_NO_WRAPPERS 1
118
119#include "libeio/config.h"
120#include "libeio/eio.h"
121
122static int req_invoke (eio_req *req);
123#define EIO_FINISH(req) req_invoke (req)
124static void req_destroy (eio_req *grp);
125#define EIO_DESTROY(req) req_destroy (req)
126
127#include "libeio/eio.c"
128
129#if !HAVE_POSIX_FADVISE
130# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
131#endif
132
133#if !HAVE_POSIX_MADVISE
134# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#ifndef MAP_ANONYMOUS
138# ifdef MAP_ANON
139# define MAP_ANONYMOUS MAP_ANON
140# else
141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
25#endif 142# endif
143#endif
144
145/* defines all sorts of constants to 0 unless they are already defined */
146#include "def0.h"
147
148#ifndef makedev
149# define makedev(maj,min) (((maj) << 8) | (min))
150#endif
151#ifndef major
152# define major(dev) ((dev) >> 8)
153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
157
158#ifndef PAGESIZE
159# define PAGESIZE sysconf (_SC_PAGESIZE)
160#endif
161
162/*****************************************************************************/
163
164static void
165fiemap (eio_req *req)
166{
167 req->result = -1;
168
169#if HAVE_FIEMAP
170 int count = req->int3;
171
172 /* heuristic: first try with 72 extents if we don't know how many, */
173 /* as most files have (hopefully) fewer than this many extents */
174 /* in fact, most should have <= 2, so the 72 below is probably overkill */
175 if (count < 0)
176 count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
177
178 for (;;)
179 {
180 struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
181 errno = ENOMEM;
182 if (!fiemap)
183 return;
184
185 req->ptr1 = fiemap;
186 req->flags |= EIO_FLAG_PTR1_FREE;
187
188 fiemap->fm_start = req->offs;
189 fiemap->fm_length = req->size;
190 fiemap->fm_flags = req->int2;
191 fiemap->fm_extent_count = count;
192
193 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
194 return;
195
196 if (req->int3 >= 0)
197 break; /* when not autosizing we are done */
198
199 if (!fiemap->fm_mapped_extents)
200 break; /* if file has no segments, we are done */
201
202 if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
203 break; /* autosizing successful, we are done */
204
205 fiemap->fm_flags = req->int2;
206 fiemap->fm_extent_count = 0;
207
208 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
209 return;
210
211 count = fiemap->fm_mapped_extents;
212
213 free (fiemap);
214 }
215
216 req->result = 0;
217
218#else
219 errno = ENOSYS;
220#endif
221}
222
223/*****************************************************************************/
26 224
27enum { 225enum {
28 REQ_QUIT, 226 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
29 REQ_OPEN, REQ_CLOSE,
30 REQ_READ, REQ_WRITE, REQ_READAHEAD,
31 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,
32 REQ_FSYNC, REQ_FDATASYNC,
33}; 227};
34 228
35typedef struct aio_cb {
36 struct aio_cb *volatile next;
37
38 int type;
39
40 int fd;
41 off_t offset;
42 size_t length;
43 ssize_t result;
44 mode_t mode; /* open */
45 int errorno;
46 SV *data, *callback, *fh;
47 void *dataptr;
48 STRLEN dataoffset;
49
50 Stat_t *statdata;
51} aio_cb;
52
53typedef aio_cb *aio_req; 229typedef eio_req *aio_req;
230typedef eio_req *aio_req_ornot;
231typedef eio_wd aio_wd;
54 232
55static int started; 233static SV *on_next_submit;
56static volatile int nreqs; 234static int next_pri = EIO_PRI_DEFAULT;
57static int max_outstanding = 1<<30; 235static int max_outstanding;
58static int respipe [2];
59 236
60static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 237static s_epipe respipe;
61static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
62static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
63 238
64static volatile aio_req reqs, reqe; /* queue start, queue end */ 239static void req_destroy (aio_req req);
65static volatile aio_req ress, rese; /* queue start, queue end */ 240static void req_cancel (aio_req req);
66 241
67static void 242static void
68poll_wait () 243want_poll (void)
69{ 244{
70 if (nreqs && !ress) 245 /* write a dummy byte to the pipe so fh becomes ready */
246 s_epipe_signal (&respipe);
247}
248
249static void
250done_poll (void)
251{
252 /* read any signals sent by the worker threads */
253 s_epipe_drain (&respipe);
254}
255
256/* must be called at most once */
257static SV *
258req_sv (aio_req req, HV *stash)
259{
260 if (!req->self)
71 { 261 {
72 fd_set rfd; 262 req->self = (SV *)newHV ();
73 FD_ZERO(&rfd); 263 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
74 FD_SET(respipe [0], &rfd);
75
76 select (respipe [0] + 1, &rfd, 0, 0, 0);
77 } 264 }
265
266 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
267}
268
269static SV *
270newSVaio_wd (aio_wd wd)
271{
272 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
273}
274
275static aio_req
276SvAIO_REQ (SV *sv)
277{
278 MAGIC *mg;
279
280 if (!SvROK (sv)
281 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
282 || (SvSTASH (SvRV (sv)) != aio_grp_stash
283 && SvSTASH (SvRV (sv)) != aio_req_stash
284 && !sv_derived_from (sv, "IO::AIO::REQ")))
285 croak ("object of class IO::AIO::REQ expected");
286
287 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
288
289 return mg ? (aio_req)mg->mg_ptr : 0;
290}
291
292static aio_wd
293SvAIO_WD (SV *sv)
294{
295 if (!SvROK (sv)
296 || SvTYPE (SvRV (sv)) != SVt_PVMG
297 || SvSTASH (SvRV (sv)) != aio_wd_stash)
298 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
299
300 return (aio_wd)(long)SvIVX (SvRV (sv));
301}
302
303static void
304aio_grp_feed (aio_req grp)
305{
306 if (grp->sv2 && SvOK (grp->sv2))
307 {
308 dSP;
309
310 ENTER;
311 SAVETMPS;
312 PUSHMARK (SP);
313 XPUSHs (req_sv (grp, aio_grp_stash));
314 PUTBACK;
315 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
316 SPAGAIN;
317 FREETMPS;
318 LEAVE;
319 }
320}
321
322static void
323req_submit (eio_req *req)
324{
325 eio_submit (req);
326
327 if (expect_false (on_next_submit))
328 {
329 dSP;
330 SV *cb = sv_2mortal (on_next_submit);
331
332 on_next_submit = 0;
333
334 PUSHMARK (SP);
335 PUTBACK;
336 call_sv (cb, G_DISCARD | G_EVAL);
337 }
78} 338}
79 339
80static int 340static int
81poll_cb () 341req_invoke (eio_req *req)
82{ 342{
83 dSP; 343 if (req->flags & FLAG_SV2_RO_OFF)
84 int count = 0; 344 SvREADONLY_off (req->sv2);
85 aio_req req, prv;
86 345
87 pthread_mutex_lock (&reslock); 346 if (!EIO_CANCELLED (req) && req->callback)
88
89 {
90 /* read any signals sent by the worker threads */
91 char buf [32];
92 while (read (respipe [0], buf, 32) > 0)
93 ;
94 }
95
96 req = ress;
97 ress = rese = 0;
98
99 pthread_mutex_unlock (&reslock);
100
101 while (req)
102 { 347 {
103 nreqs--; 348 dSP;
349 static SV *sv_result_cache; /* caches the result integer SV */
350 SV *sv_result;
104 351
105 if (req->type == REQ_QUIT) 352 ENTER;
106 started--; 353 SAVETMPS;
107 else 354 PUSHMARK (SP);
355 EXTEND (SP, 1);
356
357 /* do not recreate the result IV from scratch each time */
358 if (expect_true (sv_result_cache))
108 { 359 {
109 int errorno = errno; 360 sv_result = sv_result_cache; sv_result_cache = 0;
110 errno = req->errorno; 361 SvIV_set (sv_result, req->result);
111 362 SvIOK_only (sv_result);
112 if (req->type == REQ_READ)
113 SvCUR_set (req->data, req->dataoffset
114 + req->result > 0 ? req->result : 0);
115
116 if (req->data)
117 SvREFCNT_dec (req->data);
118
119 if (req->fh)
120 SvREFCNT_dec (req->fh);
121
122 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
123 {
124 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
125 PL_laststatval = req->result;
126 PL_statcache = *(req->statdata);
127
128 Safefree (req->statdata);
129 }
130
131 ENTER;
132 PUSHMARK (SP);
133 XPUSHs (sv_2mortal (newSViv (req->result)));
134
135 if (req->type == REQ_OPEN)
136 {
137 /* convert fd to fh */
138 SV *fh;
139
140 PUTBACK;
141 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
142 SPAGAIN;
143
144 fh = SvREFCNT_inc (POPs);
145
146 PUSHMARK (SP);
147 XPUSHs (sv_2mortal (fh));
148 }
149
150 if (SvOK (req->callback))
151 {
152 PUTBACK;
153 call_sv (req->callback, G_VOID | G_EVAL);
154 SPAGAIN;
155 }
156
157 LEAVE;
158
159 if (req->callback)
160 SvREFCNT_dec (req->callback);
161
162 errno = errorno;
163 count++;
164 }
165
166 prv = req;
167 req = req->next;
168 Safefree (prv);
169
170 /* TODO: croak on errors? */
171 }
172
173 return count;
174}
175
176static void *aio_proc(void *arg);
177
178static void
179start_thread (void)
180{
181 sigset_t fullsigset, oldsigset;
182 pthread_t tid;
183 pthread_attr_t attr;
184
185 pthread_attr_init (&attr);
186 pthread_attr_setstacksize (&attr, STACKSIZE);
187 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
188
189 sigfillset (&fullsigset);
190 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
191
192 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
193 started++;
194
195 sigprocmask (SIG_SETMASK, &oldsigset, 0);
196}
197
198static void
199send_req (aio_req req)
200{
201 nreqs++;
202
203 pthread_mutex_lock (&reqlock);
204
205 req->next = 0;
206
207 if (reqe)
208 {
209 reqe->next = req;
210 reqe = req;
211 }
212 else
213 reqe = reqs = req;
214
215 pthread_cond_signal (&reqwait);
216 pthread_mutex_unlock (&reqlock);
217
218 while (nreqs > max_outstanding)
219 {
220 poll_wait ();
221 poll_cb ();
222 }
223}
224
225static void
226end_thread (void)
227{
228 aio_req req;
229 New (0, req, 1, aio_cb);
230 req->type = REQ_QUIT;
231
232 send_req (req);
233}
234
235static void *
236aio_proc (void *thr_arg)
237{
238 aio_req req;
239 int type;
240
241 do
242 {
243 pthread_mutex_lock (&reqlock);
244
245 for (;;)
246 {
247 req = reqs;
248
249 if (reqs)
250 {
251 reqs = reqs->next;
252 if (!reqs) reqe = 0;
253 }
254
255 if (req)
256 break;
257
258 pthread_cond_wait (&reqwait, &reqlock);
259 }
260
261 pthread_mutex_unlock (&reqlock);
262
263 errno = 0; /* strictly unnecessary */
264
265 type = req->type;
266
267 switch (type)
268 {
269 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
270 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
271#if SYS_readahead
272 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
273#else
274 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
275#endif
276
277 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
278 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
279 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
280
281 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
282 case REQ_CLOSE: req->result = close (req->fd); break;
283 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
284
285 case REQ_FSYNC: req->result = fsync (req->fd); break;
286 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
287
288 case REQ_QUIT:
289 break;
290
291 default:
292 req->result = ENOSYS;
293 break;
294 }
295
296 req->errorno = errno;
297
298 pthread_mutex_lock (&reslock);
299
300 req->next = 0;
301
302 if (rese)
303 {
304 rese->next = req;
305 rese = req;
306 } 363 }
307 else 364 else
308 { 365 {
309 rese = ress = req; 366 sv_result = newSViv (req->result);
310 367 SvREADONLY_on (sv_result);
311 /* write a dummy byte to the pipe so fh becomes ready */
312 write (respipe [1], &respipe, 1);
313 } 368 }
314 369
315 pthread_mutex_unlock (&reslock); 370 switch (req->type)
371 {
372 case EIO_WD_OPEN:
373 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
374 break;
375
376 case EIO_READDIR:
377 {
378 SV *rv = &PL_sv_undef;
379
380 if (req->result >= 0)
381 {
382 int i;
383 char *names = (char *)req->ptr2;
384 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
385 AV *av = newAV ();
386
387 av_extend (av, req->result - 1);
388
389 for (i = 0; i < req->result; ++i)
390 {
391 if (req->int1 & EIO_READDIR_DENTS)
392 {
393 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
394
395 if (req->int1 & EIO_READDIR_CUSTOM2)
396 {
397 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
398 AV *avent = newAV ();
399
400 av_extend (avent, 2);
401
402 if (!sv_type [ent->type])
403 {
404 sv_type [ent->type] = newSViv (ent->type);
405 SvREADONLY_on (sv_type [ent->type]);
406 }
407
408 av_store (avent, 0, namesv);
409 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
410 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
411
412 av_store (av, i, newRV_noinc ((SV *)avent));
413 }
414 else
415 av_store (av, i, namesv);
416
417 ++ent;
418 }
419 else
420 {
421 SV *name = newSVpv (names, 0);
422 av_store (av, i, name);
423 names += SvCUR (name) + 1;
424 }
425 }
426
427 rv = sv_2mortal (newRV_noinc ((SV *)av));
428 }
429
430 PUSHs (rv);
431
432 if (req->int1 & EIO_READDIR_CUSTOM1)
433 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
434 }
435 break;
436
437 case EIO_OPEN:
438 {
439 /* convert fd to fh */
440 SV *fh = &PL_sv_undef;
441
442 if (req->result >= 0)
443 {
444 GV *gv = (GV *)sv_newmortal ();
445 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
446 char sym [64];
447 int symlen;
448
449 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
450 gv_init (gv, aio_stash, sym, symlen, 0);
451
452 symlen = snprintf (
453 sym,
454 sizeof (sym),
455 "%s&=%d",
456 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
457 (int)req->result
458 );
459
460 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
461 fh = (SV *)gv;
462 }
463
464 PUSHs (fh);
465 }
466 break;
467
468 case EIO_STATVFS:
469 case EIO_FSTATVFS:
470 {
471 SV *rv = &PL_sv_undef;
472
473#ifndef _WIN32
474 if (req->result >= 0)
475 {
476 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
477 HV *hv = newHV ();
478
479 rv = sv_2mortal (newRV_noinc ((SV *)hv));
480
481 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
482 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
483 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
484 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
485 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
486 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
487 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
488 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
489 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
490 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
491 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
492 }
493#endif
494
495 PUSHs (rv);
496 }
497
498 break;
499
500 case EIO_GROUP:
501 req->int1 = 2; /* mark group as finished */
502
503 if (req->sv1)
504 {
505 int i;
506 AV *av = (AV *)req->sv1;
507
508 EXTEND (SP, AvFILL (av) + 1);
509 for (i = 0; i <= AvFILL (av); ++i)
510 PUSHs (*av_fetch (av, i, 0));
511 }
512 break;
513
514 case EIO_NOP:
515 case EIO_BUSY:
516 break;
517
518 case EIO_READLINK:
519 case EIO_REALPATH:
520 if (req->result > 0)
521 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
522 break;
523
524 case EIO_STAT:
525 case EIO_LSTAT:
526 case EIO_FSTAT:
527 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
528
529 if (!(PL_laststatval = req->result))
530 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
531 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
532
533 PUSHs (sv_result);
534 break;
535
536 case EIO_SEEK:
537 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
538 break;
539
540 case EIO_READ:
541 {
542 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
543 *SvEND (req->sv2) = 0;
544 SvPOK_only (req->sv2);
545 SvSETMAGIC (req->sv2);
546 PUSHs (sv_result);
547 }
548 break;
549
550 case EIO_CUSTOM:
551 if (req->feed == fiemap)
552 {
553#if HAVE_FIEMAP
554 if (!req->result)
555 {
556 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
557
558 if (fiemap->fm_extent_count)
559 {
560 AV *av = newAV ();
561 int i;
562
563 while (fiemap->fm_mapped_extents)
564 {
565 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
566 AV *ext_av = newAV ();
567
568 av_store (ext_av, 3, newSVuv (extent->fe_flags));
569 av_store (ext_av, 2, newSVval64 (extent->fe_length));
570 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
571 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
572
573 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
574 }
575
576 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
577 }
578 else
579 {
580 SvIV_set (sv_result, fiemap->fm_mapped_extents);
581 PUSHs (sv_result);
582 }
583 }
584#endif
585 }
586 else
587 PUSHs (sv_result);
588 break;
589
590 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
591 if (req->result > 0)
592 SvIV_set (sv_result, 0);
593 /* FALLTHROUGH */
594
595 default:
596 PUSHs (sv_result);
597 break;
598 }
599
600 errno = req->errorno;
601
602 PUTBACK;
603 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
604 SPAGAIN;
605
606 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
607 SvREFCNT_dec (sv_result);
608 else
609 sv_result_cache = sv_result;
610
611 FREETMPS;
612 LEAVE;
613
614 PUTBACK;
316 } 615 }
317 while (type != REQ_QUIT); 616
617 return !!SvTRUE (ERRSV);
618}
619
620static void
621req_destroy (aio_req req)
622{
623 if (req->self)
624 {
625 sv_unmagic (req->self, PERL_MAGIC_ext);
626 SvREFCNT_dec (req->self);
627 }
628
629 SvREFCNT_dec (req->sv1);
630 SvREFCNT_dec (req->sv2);
631 SvREFCNT_dec (req->sv3);
632 SvREFCNT_dec (req->sv4);
633 SvREFCNT_dec (req->callback);
634
635 free (req);
636}
637
638static void
639req_cancel_subs (aio_req grp)
640{
641 if (grp->type != EIO_GROUP)
642 return;
643
644 SvREFCNT_dec (grp->sv2);
645 grp->sv2 = 0;
646
647 eio_grp_cancel (grp);
648}
649
650static void ecb_cold
651create_respipe (void)
652{
653 if (s_epipe_renew (&respipe))
654 croak ("IO::AIO: unable to initialize result pipe");
655}
656
657static void
658poll_wait (void)
659{
660 while (eio_nreqs ())
661 {
662 int size;
663
664 X_LOCK (reslock);
665 size = res_queue.size;
666 X_UNLOCK (reslock);
667
668 if (size)
669 return;
670
671 etp_maybe_start_thread ();
672
673 s_epipe_wait (&respipe);
674 }
675}
676
677static int
678poll_cb (void)
679{
680 for (;;)
681 {
682 int res = eio_poll ();
683
684 if (res > 0)
685 croak (0);
686
687 if (!max_outstanding || max_outstanding > eio_nreqs ())
688 return res;
689
690 poll_wait ();
691 }
692}
693
694static void ecb_cold
695reinit (void)
696{
697 create_respipe ();
698
699 if (eio_init (want_poll, done_poll) < 0)
700 croak ("IO::AIO: unable to initialise eio library");
701}
702
703/*****************************************************************************/
704
705#if !_POSIX_MAPPED_FILES
706# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
707# define munmap(addr,length) EIO_ENOSYS ()
708#endif
709
710#if !_POSIX_MEMORY_PROTECTION
711# define mprotect(addr,len,prot) EIO_ENOSYS ()
712# define PROT_NONE 0
713# define PROT_WRITE 0
714# define MAP_PRIVATE 0
715# define MAP_SHARED 0
716# define MAP_FIXED 0
717#endif
718
719#define MMAP_MAGIC PERL_MAGIC_ext
720
721static int ecb_cold
722mmap_free (pTHX_ SV *sv, MAGIC *mg)
723{
724 int old_errno = errno;
725 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
726 errno = old_errno;
727
728 mg->mg_obj = 0; /* just in case */
729
730 SvREADONLY_off (sv);
731
732 if (SvPVX (sv) != mg->mg_ptr)
733 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
734
735 SvCUR_set (sv, 0);
736 SvPVX (sv) = 0;
737 SvOK_off (sv);
318 738
319 return 0; 739 return 0;
320} 740}
321 741
742static MGVTBL mmap_vtbl = {
743 0, 0, 0, 0, mmap_free
744};
745
746/*****************************************************************************/
747
748static SV *
749get_cb (SV *cb_sv)
750{
751 SvGETMAGIC (cb_sv);
752 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
753}
754
755static aio_req ecb_noinline
756dreq (SV *callback)
757{
758 SV *cb_cv;
759 aio_req req;
760 int req_pri = next_pri;
761 next_pri = EIO_PRI_DEFAULT;
762
763 cb_cv = get_cb (callback);
764
765 req = calloc (sizeof (*req), 1);
766 if (!req)
767 croak ("out of memory during eio_req allocation");
768
769 req->callback = SvREFCNT_inc (cb_cv);
770 req->pri = req_pri;
771
772 return req;
773}
774
775#define dREQ \
776 aio_req req = dreq (callback); \
777
778#define REQ_SEND \
779 PUTBACK; \
780 req_submit (req); \
781 SPAGAIN; \
782 \
783 if (GIMME_V != G_VOID) \
784 XPUSHs (req_sv (req, aio_req_stash));
785
786ecb_inline void
787req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
788{
789 if (expect_false (SvROK (path)))
790 {
791 SV *rv = SvRV (path);
792 SV *wdob;
793
794 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
795 {
796 path = AvARRAY (rv)[1];
797 wdob = AvARRAY (rv)[0];
798
799 if (SvOK (wdob))
800 {
801 *wd = SvAIO_WD (wdob);
802 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
803 }
804 else
805 *wd = EIO_INVALID_WD;
806 }
807 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
808 {
809 *wd = (aio_wd)(long)SvIVX (rv);
810 *wdsv = SvREFCNT_inc_NN (rv);
811 *ptr = ".";
812 return; /* path set to "." */
813 }
814 else
815 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
816 }
817
818 *pathsv = newSVsv (path);
819 *ptr = SvPVbyte_nolen (*pathsv);
820}
821
822static void ecb_noinline
823req_set_path1 (aio_req req, SV *path)
824{
825 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
826}
827
828static void ecb_noinline
829req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
830{
831 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
832
833 switch (SvTYPE (rv))
834 {
835 case SVt_PVIO:
836 case SVt_PVLV:
837 case SVt_PVGV:
838 req->type = type_fh;
839 req->sv1 = newSVsv (fh_or_path);
840 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
841 break;
842
843 default:
844 req->type = type_path;
845 req_set_path1 (req, fh_or_path);
846 break;
847 }
848}
849
850XS(boot_IO__AIO) ecb_cold;
851
322MODULE = IO::AIO PACKAGE = IO::AIO 852MODULE = IO::AIO PACKAGE = IO::AIO
323 853
324PROTOTYPES: ENABLE 854PROTOTYPES: ENABLE
325 855
326BOOT: 856BOOT:
327{ 857{
328 if (pipe (respipe)) 858 static const struct {
329 croak ("unable to initialize result pipe"); 859 const char *name;
860 IV iv;
861 } *civ, const_iv[] = {
862# define const_niv(name, value) { # name, (IV) value },
863# define const_iv(name) { # name, (IV) name },
864# define const_eio(name) { # name, (IV) EIO_ ## name },
330 865
331 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 866 /* you have to re-run ./gendef0 after adding/Removing any constants here */
332 croak ("cannot set result pipe to nonblocking mode");
333 867
334 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 868 const_iv (ENOSYS)
335 croak ("cannot set result pipe to nonblocking mode"); 869 const_iv (EXDEV)
336} 870 const_iv (EBADR)
337 871
872 const_iv (O_RDONLY)
873 const_iv (O_WRONLY)
874 const_iv (O_RDWR)
875 const_iv (O_CREAT)
876 const_iv (O_TRUNC)
877 const_iv (O_EXCL)
878 const_iv (O_APPEND)
879
880 const_iv (O_ASYNC)
881 const_iv (O_DIRECT)
882 const_iv (O_NOATIME)
883
884 const_iv (O_CLOEXEC)
885 const_iv (O_NOCTTY)
886 const_iv (O_NOFOLLOW)
887 const_iv (O_NONBLOCK)
888 const_iv (O_EXEC)
889 const_iv (O_SEARCH)
890 const_iv (O_DIRECTORY)
891 const_iv (O_DSYNC)
892 const_iv (O_RSYNC)
893 const_iv (O_SYNC)
894 const_iv (O_TTY_INIT)
895
896 const_iv (S_IFIFO)
897 const_iv (S_IFCHR)
898 const_iv (S_IFBLK)
899 const_iv (S_IFLNK)
900 const_iv (S_IFREG)
901 const_iv (S_IFDIR)
902 const_iv (S_IFWHT)
903 const_iv (S_IFSOCK)
904 const_iv (S_IFMT)
905
906 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
907 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
908 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
909 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
910 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
911 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
912
913 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
914 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
915 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
916 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
917 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
918
919 const_iv (ST_RDONLY)
920 const_iv (ST_NOSUID)
921 const_iv (ST_NODEV)
922 const_iv (ST_NOEXEC)
923 const_iv (ST_SYNCHRONOUS)
924 const_iv (ST_MANDLOCK)
925 const_iv (ST_WRITE)
926 const_iv (ST_APPEND)
927 const_iv (ST_IMMUTABLE)
928 const_iv (ST_NOATIME)
929 const_iv (ST_NODIRATIME)
930 const_iv (ST_RELATIME)
931
932 const_iv (PROT_NONE)
933 const_iv (PROT_EXEC)
934 const_iv (PROT_READ)
935 const_iv (PROT_WRITE)
936
937 /*const_iv (MAP_FIXED)*/
938 const_iv (MAP_PRIVATE)
939 const_iv (MAP_SHARED)
940 const_iv (MAP_ANONYMOUS)
941
942 /* linuxish */
943 const_iv (MAP_HUGETLB)
944 const_iv (MAP_LOCKED)
945 const_iv (MAP_NORESERVE)
946 const_iv (MAP_POPULATE)
947 const_iv (MAP_NONBLOCK)
948
949 const_iv (FIEMAP_FLAG_SYNC)
950 const_iv (FIEMAP_FLAG_XATTR)
951 const_iv (FIEMAP_FLAGS_COMPAT)
952 const_iv (FIEMAP_EXTENT_LAST)
953 const_iv (FIEMAP_EXTENT_UNKNOWN)
954 const_iv (FIEMAP_EXTENT_DELALLOC)
955 const_iv (FIEMAP_EXTENT_ENCODED)
956 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
957 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
958 const_iv (FIEMAP_EXTENT_DATA_INLINE)
959 const_iv (FIEMAP_EXTENT_DATA_TAIL)
960 const_iv (FIEMAP_EXTENT_UNWRITTEN)
961 const_iv (FIEMAP_EXTENT_MERGED)
962 const_iv (FIEMAP_EXTENT_SHARED)
963
964 const_iv (SPLICE_F_MOVE)
965 const_iv (SPLICE_F_NONBLOCK)
966 const_iv (SPLICE_F_MORE)
967 const_iv (SPLICE_F_GIFT)
968
969 const_iv (SEEK_DATA)
970 const_iv (SEEK_HOLE)
971
972 /* libeio constants */
973 const_eio (SEEK_SET)
974 const_eio (SEEK_CUR)
975 const_eio (SEEK_END)
976
977 const_eio (MCL_FUTURE)
978 const_eio (MCL_CURRENT)
979
980 const_eio (MS_ASYNC)
981 const_eio (MS_INVALIDATE)
982 const_eio (MS_SYNC)
983
984 const_eio (MT_MODIFY)
985
986 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
987 const_eio (SYNC_FILE_RANGE_WRITE)
988 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
989
990 const_eio (FALLOC_FL_KEEP_SIZE)
991 const_eio (FALLOC_FL_PUNCH_HOLE)
992
993 const_eio (READDIR_DENTS)
994 const_eio (READDIR_DIRS_FIRST)
995 const_eio (READDIR_STAT_ORDER)
996 const_eio (READDIR_FOUND_UNKNOWN)
997
998 const_eio (DT_UNKNOWN)
999 const_eio (DT_FIFO)
1000 const_eio (DT_CHR)
1001 const_eio (DT_DIR)
1002 const_eio (DT_BLK)
1003 const_eio (DT_REG)
1004 const_eio (DT_LNK)
1005 const_eio (DT_SOCK)
1006 const_eio (DT_WHT)
1007 };
1008
1009 aio_stash = gv_stashpv ("IO::AIO" , 1);
1010 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1011 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1012 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1013
1014 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1015 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1016
1017 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1018
1019 reinit ();
1020}
1021
338void 1022void
339min_parallel(nthreads) 1023reinit ()
340 int nthreads 1024 PROTOTYPE:
1025
1026void
1027max_poll_reqs (unsigned int nreqs)
341 PROTOTYPE: $ 1028 PROTOTYPE: $
342 CODE: 1029 CODE:
343 while (nthreads > started) 1030 eio_set_max_poll_reqs (nreqs);
344 start_thread ();
345 1031
346void 1032void
347max_parallel(nthreads) 1033max_poll_time (double nseconds)
348 int nthreads
349 PROTOTYPE: $ 1034 PROTOTYPE: $
350 CODE: 1035 CODE:
1036 eio_set_max_poll_time (nseconds);
1037
1038void
1039min_parallel (unsigned int nthreads)
1040 PROTOTYPE: $
1041 CODE:
1042 eio_set_min_parallel (nthreads);
1043
1044void
1045max_parallel (unsigned int nthreads)
1046 PROTOTYPE: $
1047 CODE:
1048 eio_set_max_parallel (nthreads);
1049
1050void
1051max_idle (unsigned int nthreads)
1052 PROTOTYPE: $
1053 CODE:
1054 eio_set_max_idle (nthreads);
1055
1056void
1057idle_timeout (unsigned int seconds)
1058 PROTOTYPE: $
1059 CODE:
1060 eio_set_idle_timeout (seconds);
1061
1062void
1063max_outstanding (unsigned int maxreqs)
1064 PROTOTYPE: $
1065 CODE:
1066 max_outstanding = maxreqs;
1067
1068void
1069aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1070 PPCODE:
351{ 1071{
352 int cur = started; 1072 dREQ;
353 while (cur > nthreads) 1073
354 { 1074 req->type = EIO_WD_OPEN;
355 end_thread (); 1075 req_set_path1 (req, pathname);
1076
1077 REQ_SEND;
1078}
1079
1080void
1081aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1082 PPCODE:
1083{
1084 dREQ;
1085
1086 req->type = EIO_OPEN;
1087 req_set_path1 (req, pathname);
1088 req->int1 = flags;
1089 req->int2 = mode;
1090
1091 REQ_SEND;
1092}
1093
1094void
1095aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1096 ALIAS:
1097 aio_fsync = EIO_FSYNC
1098 aio_fdatasync = EIO_FDATASYNC
1099 aio_syncfs = EIO_SYNCFS
1100 PPCODE:
1101{
1102 int fd = s_fileno_croak (fh, 0);
1103 dREQ;
1104
1105 req->type = ix;
1106 req->sv1 = newSVsv (fh);
1107 req->int1 = fd;
1108
1109 REQ_SEND;
1110}
1111
1112void
1113aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1114 PPCODE:
1115{
1116 int fd = s_fileno_croak (fh, 0);
1117 dREQ;
1118
1119 req->type = EIO_SYNC_FILE_RANGE;
1120 req->sv1 = newSVsv (fh);
1121 req->int1 = fd;
1122 req->offs = offset;
1123 req->size = nbytes;
1124 req->int2 = flags;
1125
1126 REQ_SEND;
1127}
1128
1129void
1130aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1131 PPCODE:
1132{
1133 int fd = s_fileno_croak (fh, 0);
1134 dREQ;
1135
1136 req->type = EIO_FALLOCATE;
1137 req->sv1 = newSVsv (fh);
1138 req->int1 = fd;
1139 req->int2 = mode;
1140 req->offs = offset;
1141 req->size = len;
1142
1143 REQ_SEND;
1144}
1145
1146void
1147aio_close (SV *fh, SV *callback=&PL_sv_undef)
1148 PPCODE:
1149{
1150 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1151 int fd = s_fileno_croak (fh, 0);
1152 dREQ;
1153
1154 if (expect_false (close_fd < 0))
1155 {
1156 int pipefd [2];
1157
1158 if (
1159#ifdef _WIN32
1160 _pipe (pipefd, 1, _O_BINARY) < 0
1161#else
1162 pipe (pipefd) < 0
1163 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1164#endif
1165 || close (pipefd [1]) < 0
356 cur--; 1166 )
1167 abort (); /*D*/
1168
1169 close_fd = pipefd [0];
357 } 1170 }
358 1171
359 while (started > nthreads) 1172 req->type = EIO_DUP2;
1173 req->int1 = close_fd;
1174 req->sv2 = newSVsv (fh);
1175 req->int2 = fd;
1176
1177 REQ_SEND;
1178}
1179
1180void
1181aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1182 PPCODE:
1183{
1184 int fd = s_fileno_croak (fh, 0);
1185 dREQ;
1186
1187 req->type = EIO_SEEK;
1188 req->sv1 = newSVsv (fh);
1189 req->int1 = fd;
1190 req->offs = SvVAL64 (offset);
1191 req->int2 = whence;
1192
1193 REQ_SEND;
1194}
1195
1196void
1197aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1198 ALIAS:
1199 aio_read = EIO_READ
1200 aio_write = EIO_WRITE
1201 PPCODE:
1202{
1203 STRLEN svlen;
1204 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1205 char *svptr = SvPVbyte (data, svlen);
1206 UV len = SvUV (length);
1207
1208 if (dataoffset < 0)
1209 dataoffset += svlen;
1210
1211 if (dataoffset < 0 || dataoffset > svlen)
1212 croak ("dataoffset outside of data scalar");
1213
1214 if (ix == EIO_WRITE)
1215 {
1216 /* write: check length and adjust. */
1217 if (!SvOK (length) || len + dataoffset > svlen)
1218 len = svlen - dataoffset;
1219 }
1220 else
1221 {
1222 /* read: check type and grow scalar as necessary */
1223 SvUPGRADE (data, SVt_PV);
1224 if (SvLEN (data) >= SvCUR (data))
1225 svptr = SvGROW (data, len + dataoffset + 1);
1226 else if (SvCUR (data) < len + dataoffset)
1227 croak ("length + dataoffset outside of scalar, and cannot grow");
1228 }
1229
1230 {
1231 dREQ;
1232
1233 req->type = ix;
1234 req->sv1 = newSVsv (fh);
1235 req->int1 = fd;
1236 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1237 req->size = len;
1238 req->sv2 = SvREFCNT_inc (data);
1239 req->ptr2 = (char *)svptr + dataoffset;
1240 req->stroffset = dataoffset;
1241
1242 if (!SvREADONLY (data))
1243 {
1244 SvREADONLY_on (data);
1245 req->flags |= FLAG_SV2_RO_OFF;
1246 }
1247
1248 REQ_SEND;
1249 }
1250}
1251
1252void
1253aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1254 ALIAS:
1255 aio_readlink = EIO_READLINK
1256 aio_realpath = EIO_REALPATH
1257 PPCODE:
1258{
1259 dREQ;
1260
1261 req->type = ix;
1262 req_set_path1 (req, pathname);
1263
1264 REQ_SEND;
1265}
1266
1267void
1268aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1269 PPCODE:
1270{
1271 int ifd = s_fileno_croak (in_fh , 0);
1272 int ofd = s_fileno_croak (out_fh, 1);
1273 dREQ;
1274
1275 req->type = EIO_SENDFILE;
1276 req->sv1 = newSVsv (out_fh);
1277 req->int1 = ofd;
1278 req->sv2 = newSVsv (in_fh);
1279 req->int2 = ifd;
1280 req->offs = in_offset;
1281 req->size = length;
1282
1283 REQ_SEND;
1284}
1285
1286void
1287aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1288 PPCODE:
1289{
1290 int fd = s_fileno_croak (fh, 0);
1291 dREQ;
1292
1293 req->type = EIO_READAHEAD;
1294 req->sv1 = newSVsv (fh);
1295 req->int1 = fd;
1296 req->offs = offset;
1297 req->size = length;
1298
1299 REQ_SEND;
1300}
1301
1302void
1303aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1304 ALIAS:
1305 aio_stat = EIO_STAT
1306 aio_lstat = EIO_LSTAT
1307 aio_statvfs = EIO_STATVFS
1308 PPCODE:
1309{
1310 dREQ;
1311
1312 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1313
1314 REQ_SEND;
1315}
1316
1317UV
1318major (UV dev)
1319 ALIAS:
1320 minor = 1
1321 CODE:
1322 RETVAL = ix ? major (dev) : minor (dev);
1323 OUTPUT:
1324 RETVAL
1325
1326UV
1327makedev (UV maj, UV min)
1328 CODE:
1329 RETVAL = makedev (maj, min);
1330 OUTPUT:
1331 RETVAL
1332
1333void
1334aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1335 PPCODE:
1336{
1337 dREQ;
1338
1339 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1340 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1341 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1342
1343 REQ_SEND;
1344}
1345
1346void
1347aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1348 PPCODE:
1349{
1350 dREQ;
1351
1352 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1353 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1354
1355 REQ_SEND;
1356}
1357
1358void
1359aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1360 PPCODE:
1361{
1362 dREQ;
1363
1364 req->int2 = mode;
1365 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1366
1367 REQ_SEND;
1368}
1369
1370void
1371aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1372 PPCODE:
1373{
1374 dREQ;
1375
1376 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1377 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1378 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1379
1380 REQ_SEND;
1381}
1382
1383void
1384aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1385 PPCODE:
1386{
1387 dREQ;
1388
1389 req->type = EIO_READDIR;
1390 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1391
1392 if (flags & EIO_READDIR_DENTS)
1393 req->int1 |= EIO_READDIR_CUSTOM2;
1394
1395 req_set_path1 (req, pathname);
1396
1397 REQ_SEND;
1398}
1399
1400void
1401aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1402 PPCODE:
1403{
1404 dREQ;
1405
1406 req->type = EIO_MKDIR;
1407 req->int2 = mode;
1408 req_set_path1 (req, pathname);
1409
1410 REQ_SEND;
1411}
1412
1413void
1414aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1415 ALIAS:
1416 aio_unlink = EIO_UNLINK
1417 aio_rmdir = EIO_RMDIR
1418 aio_readdir = EIO_READDIR
1419 PPCODE:
1420{
1421 dREQ;
1422
1423 req->type = ix;
1424 req_set_path1 (req, pathname);
1425
1426 REQ_SEND;
1427}
1428
1429void
1430aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1431 ALIAS:
1432 aio_link = EIO_LINK
1433 aio_symlink = EIO_SYMLINK
1434 aio_rename = EIO_RENAME
1435 PPCODE:
1436{
1437 eio_wd wd2 = 0;
1438 dREQ;
1439
1440 req->type = ix;
1441 req_set_path1 (req, oldpath);
1442 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1443 req->int3 = (long)wd2;
1444
1445 REQ_SEND;
1446}
1447
1448void
1449aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1450 PPCODE:
1451{
1452 dREQ;
1453
1454 req->type = EIO_MKNOD;
1455 req->int2 = (mode_t)mode;
1456 req->offs = dev;
1457 req_set_path1 (req, pathname);
1458
1459 REQ_SEND;
1460}
1461
1462void
1463aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1464 ALIAS:
1465 aio_mtouch = EIO_MTOUCH
1466 aio_msync = EIO_MSYNC
1467 PPCODE:
1468{
1469 STRLEN svlen;
1470 char *svptr = SvPVbyte (data, svlen);
1471 UV len = SvUV (length);
1472
1473 if (offset < 0)
1474 offset += svlen;
1475
1476 if (offset < 0 || offset > svlen)
1477 croak ("offset outside of scalar");
1478
1479 if (!SvOK (length) || len + offset > svlen)
1480 len = svlen - offset;
1481
1482 {
1483 dREQ;
1484
1485 req->type = ix;
1486 req->sv2 = SvREFCNT_inc (data);
1487 req->ptr2 = (char *)svptr + offset;
1488 req->size = len;
1489 req->int1 = flags;
1490
1491 REQ_SEND;
1492 }
1493}
1494
1495void
1496aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1497 PPCODE:
1498{
1499 STRLEN svlen;
1500 char *svptr = SvPVbyte (data, svlen);
1501 UV len = SvUV (length);
1502
1503 if (offset < 0)
1504 offset += svlen;
1505
1506 if (offset < 0 || offset > svlen)
1507 croak ("offset outside of scalar");
1508
1509 if (!SvOK (length) || len + offset > svlen)
1510 len = svlen - offset;
1511
1512 {
1513 dREQ;
1514
1515 req->type = EIO_MLOCK;
1516 req->sv2 = SvREFCNT_inc (data);
1517 req->ptr2 = (char *)svptr + offset;
1518 req->size = len;
1519
1520 REQ_SEND;
1521 }
1522}
1523
1524void
1525aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1526 PPCODE:
1527{
1528 dREQ;
1529
1530 req->type = EIO_MLOCKALL;
1531 req->int1 = flags;
1532
1533 REQ_SEND;
1534}
1535
1536void
1537aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1538 PPCODE:
1539{
1540 int fd = s_fileno_croak (fh, 0);
1541 dREQ;
1542
1543 req->type = EIO_CUSTOM;
1544 req->sv1 = newSVsv (fh);
1545 req->int1 = fd;
1546
1547 req->feed = fiemap;
1548#if HAVE_FIEMAP
1549 /* keep our fingers crossed that the next two types are 64 bit */
1550 req->offs = start;
1551 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1552 req->int2 = flags;
1553 req->int3 = SvOK (count) ? SvIV (count) : -1;
1554#endif
1555
1556 REQ_SEND;
1557}
1558
1559void
1560aio_busy (double delay, SV *callback=&PL_sv_undef)
1561 PPCODE:
1562{
1563 dREQ;
1564
1565 req->type = EIO_BUSY;
1566 req->nv1 = delay < 0. ? 0. : delay;
1567
1568 REQ_SEND;
1569}
1570
1571void
1572aio_group (SV *callback=&PL_sv_undef)
1573 PPCODE:
1574{
1575 dREQ;
1576
1577 req->type = EIO_GROUP;
1578
1579 req_submit (req);
1580 XPUSHs (req_sv (req, aio_grp_stash));
1581}
1582
1583void
1584aio_nop (SV *callback=&PL_sv_undef)
1585 ALIAS:
1586 aio_nop = EIO_NOP
1587 aio_sync = EIO_SYNC
1588 PPCODE:
1589{
1590 dREQ;
1591
1592 req->type = ix;
1593
1594 REQ_SEND;
1595}
1596
1597int
1598aioreq_pri (int pri = 0)
1599 CODE:
1600 RETVAL = next_pri;
1601 if (items > 0)
1602 {
1603 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1604 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1605 next_pri = pri;
1606 }
1607 OUTPUT:
1608 RETVAL
1609
1610void
1611aioreq_nice (int nice = 0)
1612 CODE:
1613 nice = next_pri - nice;
1614 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1615 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1616 next_pri = nice;
1617
1618void
1619flush ()
1620 CODE:
1621 while (eio_nreqs ())
360 { 1622 {
361 poll_wait (); 1623 poll_wait ();
362 poll_cb (); 1624 poll_cb ();
363 } 1625 }
364}
365 1626
366int 1627int
367max_outstanding(nreqs) 1628poll ()
368 int nreqs
369 PROTOTYPE: $
370 CODE:
371 RETVAL = max_outstanding;
372 max_outstanding = nreqs;
373
374void
375aio_open(pathname,flags,mode,callback=&PL_sv_undef)
376 SV * pathname
377 int flags
378 int mode
379 SV * callback
380 PROTOTYPE: $$$;$
381 CODE: 1629 CODE:
382{
383 aio_req req;
384
385 Newz (0, req, 1, aio_cb);
386
387 if (!req)
388 croak ("out of memory during aio_req allocation");
389
390 req->type = REQ_OPEN;
391 req->data = newSVsv (pathname);
392 req->dataptr = SvPV_nolen (req->data);
393 req->fd = flags;
394 req->mode = mode;
395 req->callback = SvREFCNT_inc (callback);
396
397 send_req (req);
398}
399
400void
401aio_close(fh,callback=&PL_sv_undef)
402 SV * fh
403 SV * callback
404 PROTOTYPE: $;$
405 ALIAS:
406 aio_close = REQ_CLOSE
407 aio_fsync = REQ_FSYNC
408 aio_fdatasync = REQ_FDATASYNC
409 CODE:
410{
411 aio_req req;
412
413 Newz (0, req, 1, aio_cb);
414
415 if (!req)
416 croak ("out of memory during aio_req allocation");
417
418 req->type = ix;
419 req->fh = newSVsv (fh);
420 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
421 req->callback = SvREFCNT_inc (callback);
422
423 send_req (req);
424}
425
426void
427aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
428 SV * fh
429 UV offset
430 IV length
431 SV * data
432 IV dataoffset
433 SV * callback
434 ALIAS:
435 aio_read = REQ_READ
436 aio_write = REQ_WRITE
437 PROTOTYPE: $$$$$;$
438 CODE:
439{
440 aio_req req;
441 STRLEN svlen;
442 char *svptr = SvPV (data, svlen);
443
444 SvUPGRADE (data, SVt_PV);
445 SvPOK_on (data);
446
447 if (dataoffset < 0)
448 dataoffset += svlen;
449
450 if (dataoffset < 0 || dataoffset > svlen)
451 croak ("data offset outside of string");
452
453 if (ix == REQ_WRITE)
454 {
455 /* write: check length and adjust. */
456 if (length < 0 || length + dataoffset > svlen)
457 length = svlen - dataoffset;
458 }
459 else
460 {
461 /* read: grow scalar as necessary */
462 svptr = SvGROW (data, length + dataoffset);
463 }
464
465 if (length < 0)
466 croak ("length must not be negative");
467
468 Newz (0, req, 1, aio_cb);
469
470 if (!req)
471 croak ("out of memory during aio_req allocation");
472
473 req->type = ix;
474 req->fh = newSVsv (fh);
475 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
476 : IoOFP (sv_2io (fh)));
477 req->offset = offset;
478 req->length = length;
479 req->data = SvREFCNT_inc (data);
480 req->dataptr = (char *)svptr + dataoffset;
481 req->callback = SvREFCNT_inc (callback);
482
483 send_req (req);
484}
485
486void
487aio_readahead(fh,offset,length,callback=&PL_sv_undef)
488 SV * fh
489 UV offset
490 IV length
491 SV * callback
492 PROTOTYPE: $$$;$
493 CODE:
494{
495 aio_req req;
496
497 if (length < 0)
498 croak ("length must not be negative");
499
500 Newz (0, req, 1, aio_cb);
501
502 if (!req)
503 croak ("out of memory during aio_req allocation");
504
505 req->type = REQ_READAHEAD;
506 req->fh = newSVsv (fh);
507 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
508 req->offset = offset;
509 req->length = length;
510 req->callback = SvREFCNT_inc (callback);
511
512 send_req (req);
513}
514
515void
516aio_stat(fh_or_path,callback=&PL_sv_undef)
517 SV * fh_or_path
518 SV * callback
519 ALIAS:
520 aio_stat = REQ_STAT
521 aio_lstat = REQ_LSTAT
522 CODE:
523{
524 aio_req req;
525
526 Newz (0, req, 1, aio_cb);
527
528 if (!req)
529 croak ("out of memory during aio_req allocation");
530
531 New (0, req->statdata, 1, Stat_t);
532
533 if (!req->statdata)
534 croak ("out of memory during aio_req->statdata allocation");
535
536 if (SvPOK (fh_or_path))
537 {
538 req->type = ix;
539 req->data = newSVsv (fh_or_path);
540 req->dataptr = SvPV_nolen (req->data);
541 }
542 else
543 {
544 req->type = REQ_FSTAT;
545 req->fh = newSVsv (fh_or_path);
546 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
547 }
548
549 req->callback = SvREFCNT_inc (callback);
550
551 send_req (req);
552}
553
554void
555aio_unlink(pathname,callback=&PL_sv_undef)
556 SV * pathname
557 SV * callback
558 CODE:
559{
560 aio_req req;
561
562 Newz (0, req, 1, aio_cb);
563
564 if (!req)
565 croak ("out of memory during aio_req allocation");
566
567 req->type = REQ_UNLINK;
568 req->data = newSVsv (pathname);
569 req->dataptr = SvPV_nolen (req->data);
570 req->callback = SvREFCNT_inc (callback);
571
572 send_req (req);
573}
574
575void
576flush()
577 PROTOTYPE:
578 CODE:
579 while (nreqs)
580 {
581 poll_wait (); 1630 poll_wait ();
582 poll_cb (); 1631 RETVAL = poll_cb ();
583 }
584
585void
586poll()
587 PROTOTYPE:
588 CODE:
589 if (nreqs)
590 {
591 poll_wait ();
592 poll_cb ();
593 }
594
595int
596poll_fileno()
597 PROTOTYPE:
598 CODE:
599 RETVAL = respipe [0];
600 OUTPUT: 1632 OUTPUT:
601 RETVAL 1633 RETVAL
602 1634
603int 1635int
1636poll_fileno ()
1637 CODE:
1638 RETVAL = s_epipe_fd (&respipe);
1639 OUTPUT:
1640 RETVAL
1641
1642int
604poll_cb(...) 1643poll_cb (...)
605 PROTOTYPE: 1644 PROTOTYPE:
606 CODE: 1645 CODE:
607 RETVAL = poll_cb (); 1646 RETVAL = poll_cb ();
608 OUTPUT: 1647 OUTPUT:
609 RETVAL 1648 RETVAL
610 1649
611void 1650void
612poll_wait() 1651poll_wait ()
613 PROTOTYPE:
614 CODE: 1652 CODE:
615 if (nreqs)
616 poll_wait (); 1653 poll_wait ();
617 1654
618int 1655int
619nreqs() 1656nreqs ()
620 PROTOTYPE:
621 CODE: 1657 CODE:
622 RETVAL = nreqs; 1658 RETVAL = eio_nreqs ();
623 OUTPUT: 1659 OUTPUT:
624 RETVAL 1660 RETVAL
625 1661
1662int
1663nready ()
1664 CODE:
1665 RETVAL = eio_nready ();
1666 OUTPUT:
1667 RETVAL
1668
1669int
1670npending ()
1671 CODE:
1672 RETVAL = eio_npending ();
1673 OUTPUT:
1674 RETVAL
1675
1676int
1677nthreads ()
1678 CODE:
1679 RETVAL = eio_nthreads ();
1680 OUTPUT:
1681 RETVAL
1682
1683int
1684fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1685 CODE:
1686 RETVAL = posix_fadvise (fh, offset, length, advice);
1687 OUTPUT:
1688 RETVAL
1689
1690IV
1691sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1692 CODE:
1693 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1694 OUTPUT:
1695 RETVAL
1696
1697void
1698mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1699 PPCODE:
1700 sv_unmagic (scalar, MMAP_MAGIC);
1701{
1702 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1703 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1704 if (addr == (void *)-1)
1705 XSRETURN_NO;
1706
1707 sv_force_normal (scalar);
1708
1709 /* we store the length in mg_obj, as namlen is I32 :/ */
1710 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1711 ->mg_obj = (SV *)length;
1712
1713 SvUPGRADE (scalar, SVt_PV); /* nop... */
1714
1715 if (!(prot & PROT_WRITE))
1716 SvREADONLY_on (scalar);
1717
1718 if (SvLEN (scalar))
1719 Safefree (SvPVX (scalar));
1720
1721 SvPVX (scalar) = (char *)addr;
1722 SvCUR_set (scalar, length);
1723 SvLEN_set (scalar, 0);
1724 SvPOK_only (scalar);
1725
1726 XSRETURN_YES;
1727}
1728
1729void
1730munmap (SV *scalar)
1731 CODE:
1732 sv_unmagic (scalar, MMAP_MAGIC);
1733
1734int
1735madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1736 ALIAS:
1737 mprotect = 1
1738 CODE:
1739{
1740 STRLEN svlen;
1741 void *addr = SvPVbyte (scalar, svlen);
1742 size_t len = SvUV (length);
1743
1744 if (offset < 0)
1745 offset += svlen;
1746
1747 if (offset < 0 || offset > svlen)
1748 croak ("offset outside of scalar");
1749
1750 if (!SvOK (length) || len + offset > svlen)
1751 len = svlen - offset;
1752
1753 addr = (void *)(((intptr_t)addr) + offset);
1754 eio_page_align (&addr, &len);
1755
1756 switch (ix)
1757 {
1758 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1759 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1760 }
1761}
1762 OUTPUT:
1763 RETVAL
1764
1765int
1766munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1767 CODE:
1768{
1769 STRLEN svlen;
1770 void *addr = SvPVbyte (scalar, svlen);
1771 size_t len = SvUV (length);
1772
1773 if (offset < 0)
1774 offset += svlen;
1775
1776 if (offset < 0 || offset > svlen)
1777 croak ("offset outside of scalar");
1778
1779 if (!SvOK (length) || len + offset > svlen)
1780 len = svlen - offset;
1781
1782 addr = (void *)(((intptr_t)addr) + offset);
1783 eio_page_align (&addr, &len);
1784#if _POSIX_MEMLOCK_RANGE
1785 RETVAL = munlock (addr, len);
1786#else
1787 RETVAL = EIO_ENOSYS ();
1788#endif
1789}
1790 OUTPUT:
1791 RETVAL
1792
1793int
1794munlockall ()
1795 CODE:
1796#if _POSIX_MEMLOCK
1797 munlockall ();
1798#else
1799 RETVAL = EIO_ENOSYS ();
1800#endif
1801 OUTPUT:
1802 RETVAL
1803
1804int
1805splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1806 CODE:
1807{
1808#if HAVE_LINUX_SPLICE
1809 loff_t off_in_, off_out_;
1810 RETVAL = splice (
1811 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1812 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1813 length, flags
1814 );
1815#else
1816 RETVAL = EIO_ENOSYS ();
1817#endif
1818}
1819 OUTPUT:
1820 RETVAL
1821
1822int
1823tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1824 CODE:
1825#if HAVE_LINUX_SPLICE
1826 RETVAL = tee (rfh, wfh, length, flags);
1827#else
1828 RETVAL = EIO_ENOSYS ();
1829#endif
1830 OUTPUT:
1831 RETVAL
1832
1833void _on_next_submit (SV *cb)
1834 CODE:
1835 SvREFCNT_dec (on_next_submit);
1836 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1837
1838PROTOTYPES: DISABLE
1839
1840MODULE = IO::AIO PACKAGE = IO::AIO::WD
1841
1842BOOT:
1843{
1844 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1845 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1846}
1847
1848void
1849DESTROY (SV *self)
1850 CODE:
1851{
1852 aio_wd wd = SvAIO_WD (self);
1853#if HAVE_AT
1854 {
1855 SV *callback = &PL_sv_undef;
1856 dREQ; /* clobbers next_pri :/ */
1857 next_pri = req->pri; /* restore next_pri */
1858 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1859 req->type = EIO_WD_CLOSE;
1860 req->wd = wd;
1861 REQ_SEND;
1862 }
1863#else
1864 eio_wd_close_sync (wd);
1865#endif
1866}
1867
1868MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1869
1870void
1871cancel (aio_req_ornot req)
1872 CODE:
1873 eio_cancel (req);
1874
1875void
1876cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1877 PPCODE:
1878{
1879 if (GIMME_V != G_VOID)
1880 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1881
1882 if (items > 1)
1883 {
1884 SV *cb_cv =get_cb (callback);
1885
1886 SvREFCNT_dec (req->callback);
1887 req->callback = SvREFCNT_inc (cb_cv);
1888 }
1889}
1890
1891MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1892
1893void
1894add (aio_req grp, ...)
1895 PPCODE:
1896{
1897 int i;
1898
1899 if (grp->int1 == 2)
1900 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1901
1902 for (i = 1; i < items; ++i )
1903 {
1904 aio_req req;
1905
1906 if (GIMME_V != G_VOID)
1907 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1908
1909 req = SvAIO_REQ (ST (i));
1910
1911 if (req)
1912 eio_grp_add (grp, req);
1913 }
1914}
1915
1916void
1917cancel_subs (aio_req_ornot req)
1918 CODE:
1919 req_cancel_subs (req);
1920
1921void
1922result (aio_req grp, ...)
1923 CODE:
1924{
1925 int i;
1926 AV *av;
1927
1928 grp->errorno = errno;
1929
1930 av = newAV ();
1931 av_extend (av, items - 1);
1932
1933 for (i = 1; i < items; ++i )
1934 av_push (av, newSVsv (ST (i)));
1935
1936 SvREFCNT_dec (grp->sv1);
1937 grp->sv1 = (SV *)av;
1938}
1939
1940void
1941errno (aio_req grp, int errorno = errno)
1942 CODE:
1943 grp->errorno = errorno;
1944
1945void
1946limit (aio_req grp, int limit)
1947 CODE:
1948 eio_grp_limit (grp, limit);
1949
1950void
1951feed (aio_req grp, SV *callback=&PL_sv_undef)
1952 CODE:
1953{
1954 SvREFCNT_dec (grp->sv2);
1955 grp->sv2 = newSVsv (callback);
1956 grp->feed = aio_grp_feed;
1957
1958 if (grp->int2 <= 0)
1959 grp->int2 = 2;
1960
1961 eio_grp_limit (grp, grp->int2);
1962}
1963

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