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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.28 by root, Wed Aug 17 05:06:59 2005 UTC vs.
Revision 1.210 by root, Fri Apr 6 11:39:25 2012 UTC

1#define _REENTRANT 1 1#include "libeio/xthread.h"
2
2#include <errno.h> 3#include <errno.h>
3 4
4#include "EXTERN.h" 5#include "EXTERN.h"
5#include "perl.h" 6#include "perl.h"
6#include "XSUB.h" 7#include "XSUB.h"
7 8
8#include "autoconf/config.h" 9#include "schmorp.h"
9 10
11#include <stddef.h>
12#include <stdlib.h>
13#include <errno.h>
10#include <sys/types.h> 14#include <sys/types.h>
11#include <sys/stat.h> 15#include <sys/stat.h>
12
13#include <unistd.h> 16#include <limits.h>
14#include <fcntl.h> 17#include <fcntl.h>
15#include <signal.h>
16#include <sched.h> 18#include <sched.h>
17 19
18#include <pthread.h> 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
19 23
20typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 24#if __linux__
21typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 25# include <linux/fs.h>
22typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 26# ifdef FS_IOC_FIEMAP
27# include <linux/fiemap.h>
28# define HAVE_FIEMAP 1
29# endif
30#endif
23 31
24#if __ia64 32/* perl namespace pollution */
25# define STACKSIZE 65536 33#undef VERSION
34
35/* perl stupidly overrides readdir and maybe others */
36/* with thread-unsafe versions, imagine that :( */
37#undef readdir
38#undef opendir
39#undef closedir
40
41#ifdef _WIN32
42
43 // perl overrides all those nice libc functions
44
45 #undef malloc
46 #undef free
47 #undef open
48 #undef read
49 #undef write
50 #undef send
51 #undef recv
52 #undef stat
53 #undef lstat
54 #undef fstat
55 #undef truncate
56 #undef ftruncate
57 #undef open
58 #undef link
59 #undef close
60 #undef unlink
61 #undef mkdir
62 #undef rmdir
63 #undef rename
64 #undef lseek
65 #undef opendir
66 #undef readdir
67 #undef closedir
68 #undef chmod
69 #undef fchmod
70 #undef dup
71 #undef dup2
72 #undef abort
73 #undef pipe
74
75 #define EIO_STRUCT_STAT struct _stati64
76 #define EIO_STRUCT_STATI64
77
26#else 78#else
27# define STACKSIZE 4096 79
80 #include <sys/time.h>
81 #include <sys/select.h>
82 #include <unistd.h>
83 #include <utime.h>
84 #include <signal.h>
85
86 #define EIO_STRUCT_STAT Stat_t
87
28#endif 88#endif
29 89
30enum { 90/*****************************************************************************/
31 REQ_QUIT,
32 REQ_OPEN, REQ_CLOSE,
33 REQ_READ, REQ_WRITE, REQ_READAHEAD,
34 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35 REQ_FSYNC, REQ_FDATASYNC,
36 REQ_UNLINK, REQ_RMDIR,
37 REQ_SYMLINK,
38};
39 91
40typedef struct aio_cb { 92#if __GNUC__ >= 3
41 struct aio_cb *volatile next; 93# define expect(expr,value) __builtin_expect ((expr),(value))
94#else
95# define expect(expr,value) (expr)
96#endif
42 97
43 int type; 98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
44 100
45 int fd; 101/*****************************************************************************/
46 off_t offset; 102
47 size_t length; 103typedef SV SV8; /* byte-sv, used for argument-checking */
48 ssize_t result; 104typedef int aio_rfd; /* read file desriptor */
49 mode_t mode; /* open */ 105typedef int aio_wfd; /* write file descriptor */
50 int errorno; 106
51 SV *data, *callback, *fh; 107static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
52 void *dataptr, *data2ptr; 108
109#define EIO_REQ_MEMBERS \
110 SV *callback; \
111 SV *sv1, *sv2; \
112 SV *sv3, *sv4; \
53 STRLEN dataoffset; 113 STRLEN stroffset; \
114 SV *self;
54 115
55 Stat_t *statdata; 116#define EIO_NO_WRAPPERS 1
56} aio_cb;
57 117
58typedef aio_cb *aio_req; 118#include "libeio/config.h"
119#include "libeio/eio.h"
59 120
60static int started; 121static int req_invoke (eio_req *req);
61static volatile int nreqs; 122#define EIO_FINISH(req) req_invoke (req)
62static int max_outstanding = 1<<30; 123static void req_destroy (eio_req *grp);
63static int respipe [2]; 124#define EIO_DESTROY(req) req_destroy (req)
64 125
65static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 126#include "libeio/eio.c"
66static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
68 127
69static volatile aio_req reqs, reqe; /* queue start, queue end */ 128#if !HAVE_POSIX_FADVISE
70static volatile aio_req ress, rese; /* queue start, queue end */ 129# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
130#endif
71 131
72static void free_req (aio_req req) 132#if !HAVE_POSIX_MADVISE
73{ 133# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
74 if (req->data) 134#endif
75 SvREFCNT_dec (req->data);
76 135
77 if (req->fh) 136#ifndef MAP_ANONYMOUS
78 SvREFCNT_dec (req->fh); 137# ifdef MAP_ANON
138# define MAP_ANONYMOUS MAP_ANON
139# else
140# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
141# endif
142#endif
79 143
80 if (req->statdata) 144/* defines all sorts of constants to 0 unless they are already defined */
81 Safefree (req->statdata); 145#include "def0.h"
82 146
83 if (req->callback) 147#ifndef makedev
84 SvREFCNT_dec (req->callback); 148# define makedev(maj,min) (((maj) << 8) | (min))
149#endif
150#ifndef major
151# define major(dev) ((dev) >> 8)
152#endif
153#ifndef minor
154# define minor(dev) ((dev) & 0xff)
155#endif
85 156
86 Safefree (req); 157#ifndef PAGESIZE
87} 158# define PAGESIZE sysconf (_SC_PAGESIZE)
159#endif
160
161/*****************************************************************************/
88 162
89static void 163static void
90poll_wait () 164fiemap (eio_req *req)
91{ 165{
92 if (nreqs && !ress) 166 req->result = -1;
93 {
94 fd_set rfd;
95 FD_ZERO(&rfd);
96 FD_SET(respipe [0], &rfd);
97 167
98 select (respipe [0] + 1, &rfd, 0, 0, 0); 168#if HAVE_FIEMAP
99 }
100}
101
102static int
103poll_cb ()
104{
105 dSP;
106 int count = 0;
107 int do_croak = 0;
108 aio_req req;
109
110 for (;;) 169 for (;;)
111 { 170 {
112 pthread_mutex_lock (&reslock); 171 int count = req->int3;
113 req = ress;
114 172
115 if (req) 173 if (count < 0)
116 { 174 {
117 ress = req->next; 175 struct fiemap fiemap;
118 176
119 if (!ress) 177 fiemap.fm_start = req->offs;
178 fiemap.fm_length = req->size;
179 fiemap.fm_flags = req->int2;
180 fiemap.fm_extent_count = 0;
181
182 if (ioctl (req->int1, FS_IOC_FIEMAP, &fiemap))
120 { 183 return;
121 rese = 0;
122 184
123 /* read any signals sent by the worker threads */ 185 count = fiemap.fm_mapped_extents;
124 char buf [32];
125 while (read (respipe [0], buf, 32) == 32)
126 ;
127 }
128 } 186 }
129 187
130 pthread_mutex_unlock (&reslock); 188 struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
131 189 errno = ENOMEM;
132 if (!req) 190 if (!fiemap)
133 break; 191 return;
134 192
135 nreqs--; 193 req->ptr1 = fiemap;
194 req->flags |= EIO_FLAG_PTR1_FREE;
136 195
137 if (req->type == REQ_QUIT) 196 fiemap->fm_start = req->offs;
138 started--; 197 fiemap->fm_length = req->size;
139 else 198 fiemap->fm_flags = req->int2;
199 fiemap->fm_extent_count = count;
200
201 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
202 return;
203
204 if (req->int3 >= 0)
205 break; /* when not autosizing we are done */
206
207 if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
208 break; /* autosizing successful, we are done */
209
210 free (fiemap);
211 }
212
213 req->result = 0;
214
215#else
216 errno = ENOSYS;
217#endif
218}
219
220/*****************************************************************************/
221
222enum {
223 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
224};
225
226typedef eio_req *aio_req;
227typedef eio_req *aio_req_ornot;
228typedef eio_wd aio_wd;
229
230static SV *on_next_submit;
231static int next_pri = EIO_PRI_DEFAULT;
232static int max_outstanding;
233
234static s_epipe respipe;
235
236static void req_destroy (aio_req req);
237static void req_cancel (aio_req req);
238
239static void
240want_poll (void)
241{
242 /* write a dummy byte to the pipe so fh becomes ready */
243 s_epipe_signal (&respipe);
244}
245
246static void
247done_poll (void)
248{
249 /* read any signals sent by the worker threads */
250 s_epipe_drain (&respipe);
251}
252
253/* must be called at most once */
254static SV *
255req_sv (aio_req req, HV *stash)
256{
257 if (!req->self)
258 {
259 req->self = (SV *)newHV ();
260 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
261 }
262
263 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
264}
265
266static SV *
267newSVaio_wd (aio_wd wd)
268{
269 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
270}
271
272static aio_req
273SvAIO_REQ (SV *sv)
274{
275 MAGIC *mg;
276
277 if (!SvROK (sv)
278 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
279 || (SvSTASH (SvRV (sv)) != aio_grp_stash
280 && SvSTASH (SvRV (sv)) != aio_req_stash
281 && !sv_derived_from (sv, "IO::AIO::REQ")))
282 croak ("object of class IO::AIO::REQ expected");
283
284 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
285
286 return mg ? (aio_req)mg->mg_ptr : 0;
287}
288
289static aio_wd
290SvAIO_WD (SV *sv)
291{
292 if (!SvROK (sv)
293 || SvTYPE (SvRV (sv)) != SVt_PVMG
294 || SvSTASH (SvRV (sv)) != aio_wd_stash)
295 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
296
297 return (aio_wd)(long)SvIVX (SvRV (sv));
298}
299
300static void
301aio_grp_feed (aio_req grp)
302{
303 if (grp->sv2 && SvOK (grp->sv2))
304 {
305 dSP;
306
307 ENTER;
308 SAVETMPS;
309 PUSHMARK (SP);
310 XPUSHs (req_sv (grp, aio_grp_stash));
311 PUTBACK;
312 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
313 SPAGAIN;
314 FREETMPS;
315 LEAVE;
316 }
317}
318
319static void
320req_submit (eio_req *req)
321{
322 eio_submit (req);
323
324 if (expect_false (on_next_submit))
325 {
326 dSP;
327 SV *cb = sv_2mortal (on_next_submit);
328
329 on_next_submit = 0;
330
331 PUSHMARK (SP);
332 PUTBACK;
333 call_sv (cb, G_DISCARD | G_EVAL);
334 }
335}
336
337static int
338req_invoke (eio_req *req)
339{
340 if (req->flags & FLAG_SV2_RO_OFF)
341 SvREADONLY_off (req->sv2);
342
343 if (!EIO_CANCELLED (req) && req->callback)
344 {
345 dSP;
346 static SV *sv_result_cache; /* caches the result integer SV */
347 SV *sv_result;
348
349 ENTER;
350 SAVETMPS;
351 PUSHMARK (SP);
352 EXTEND (SP, 1);
353
354 /* do not recreate the result IV from scratch each time */
355 if (expect_true (sv_result_cache))
140 { 356 {
141 int errorno = errno; 357 sv_result = sv_result_cache; sv_result_cache = 0;
142 errno = req->errorno; 358 SvIV_set (sv_result, req->result);
143 359 SvIOK_only (sv_result);
144 if (req->type == REQ_READ)
145 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
146
147 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
148 SvREADONLY_off (req->data);
149
150 if (req->statdata)
151 {
152 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
153 PL_laststatval = req->result;
154 PL_statcache = *(req->statdata);
155 }
156
157 ENTER;
158 PUSHMARK (SP);
159 XPUSHs (sv_2mortal (newSViv (req->result)));
160
161 if (req->type == REQ_OPEN)
162 {
163 /* convert fd to fh */
164 SV *fh;
165
166 PUTBACK;
167 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
168 SPAGAIN;
169
170 fh = SvREFCNT_inc (POPs);
171
172 PUSHMARK (SP);
173 XPUSHs (sv_2mortal (fh));
174 }
175
176 if (SvOK (req->callback))
177 {
178 PUTBACK;
179 call_sv (req->callback, G_VOID | G_EVAL);
180 SPAGAIN;
181
182 if (SvTRUE (ERRSV))
183 {
184 free_req (req);
185 croak (0);
186 }
187 }
188
189 LEAVE;
190
191 errno = errorno;
192 count++;
193 }
194
195 free_req (req);
196 }
197
198 return count;
199}
200
201static void *aio_proc(void *arg);
202
203static void
204start_thread (void)
205{
206 sigset_t fullsigset, oldsigset;
207 pthread_t tid;
208 pthread_attr_t attr;
209
210 pthread_attr_init (&attr);
211 pthread_attr_setstacksize (&attr, STACKSIZE);
212 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
213
214 sigfillset (&fullsigset);
215 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
216
217 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
218 started++;
219
220 sigprocmask (SIG_SETMASK, &oldsigset, 0);
221}
222
223static void
224send_req (aio_req req)
225{
226 nreqs++;
227
228 pthread_mutex_lock (&reqlock);
229
230 req->next = 0;
231
232 if (reqe)
233 {
234 reqe->next = req;
235 reqe = req;
236 }
237 else
238 reqe = reqs = req;
239
240 pthread_cond_signal (&reqwait);
241 pthread_mutex_unlock (&reqlock);
242
243 if (nreqs > max_outstanding)
244 for (;;)
245 {
246 poll_cb ();
247
248 if (nreqs <= max_outstanding)
249 break;
250
251 poll_wait ();
252 }
253}
254
255static void
256end_thread (void)
257{
258 aio_req req;
259 Newz (0, req, 1, aio_cb);
260 req->type = REQ_QUIT;
261
262 send_req (req);
263}
264
265static void min_parallel (int nthreads)
266{
267 while (nthreads > started)
268 start_thread ();
269}
270
271static void max_parallel (int nthreads)
272{
273 int cur = started;
274
275 while (cur > nthreads)
276 {
277 end_thread ();
278 cur--;
279 }
280
281 while (started > nthreads)
282 {
283 poll_wait ();
284 poll_cb ();
285 }
286}
287
288static void create_pipe ()
289{
290 if (pipe (respipe))
291 croak ("unable to initialize result pipe");
292
293 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
294 croak ("cannot set result pipe to nonblocking mode");
295
296 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
297 croak ("cannot set result pipe to nonblocking mode");
298}
299
300static void atfork_prepare (void)
301{
302 pthread_mutex_lock (&reqlock);
303 pthread_mutex_lock (&reslock);
304}
305
306static void atfork_parent (void)
307{
308 pthread_mutex_unlock (&reslock);
309 pthread_mutex_unlock (&reqlock);
310}
311
312static void atfork_child (void)
313{
314 aio_req prv;
315
316 int restart = started;
317 started = 0;
318
319 while (reqs)
320 {
321 prv = reqs;
322 reqs = prv->next;
323 free_req (prv);
324 }
325
326 reqs = reqe = 0;
327
328 while (ress)
329 {
330 prv = ress;
331 ress = prv->next;
332 free_req (prv);
333 }
334
335 ress = rese = 0;
336
337 atfork_parent ();
338
339 min_parallel (restart);
340}
341
342/*****************************************************************************/
343/* work around various missing functions */
344
345#if !HAVE_PREADWRITE
346# define pread aio_pread
347# define pwrite aio_pwrite
348
349/*
350 * make our pread/pwrite safe against themselves, but not against
351 * normal read/write by using a mutex. slows down execution a lot,
352 * but that's your problem, not mine.
353 */
354static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
355
356static ssize_t
357pread (int fd, void *buf, size_t count, off_t offset)
358{
359 ssize_t res;
360 off_t ooffset;
361
362 pthread_mutex_lock (&iolock);
363 ooffset = lseek (fd, 0, SEEK_CUR);
364 lseek (fd, offset, SEEK_SET);
365 res = read (fd, buf, count);
366 lseek (fd, ooffset, SEEK_SET);
367 pthread_mutex_unlock (&iolock);
368
369 return res;
370}
371
372static ssize_t
373pwrite (int fd, void *buf, size_t count, off_t offset)
374{
375 ssize_t res;
376 off_t ooffset;
377
378 pthread_mutex_lock (&iolock);
379 ooffset = lseek (fd, 0, SEEK_CUR);
380 lseek (fd, offset, SEEK_SET);
381 res = write (fd, buf, count);
382 lseek (fd, offset, SEEK_SET);
383 pthread_mutex_unlock (&iolock);
384
385 return res;
386}
387#endif
388
389#if !HAVE_FDATASYNC
390# define fdatasync fsync
391#endif
392
393#if !HAVE_READAHEAD
394# define readahead aio_readahead
395
396static char readahead_buf[4096];
397
398static ssize_t
399readahead (int fd, off_t offset, size_t count)
400{
401 while (count > 0)
402 {
403 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
404
405 pread (fd, readahead_buf, len, offset);
406 offset += len;
407 count -= len;
408 }
409
410 errno = 0;
411}
412#endif
413
414/*****************************************************************************/
415
416static void *
417aio_proc (void *thr_arg)
418{
419 aio_req req;
420 int type;
421
422 do
423 {
424 pthread_mutex_lock (&reqlock);
425
426 for (;;)
427 {
428 req = reqs;
429
430 if (reqs)
431 {
432 reqs = reqs->next;
433 if (!reqs) reqe = 0;
434 }
435
436 if (req)
437 break;
438
439 pthread_cond_wait (&reqwait, &reqlock);
440 }
441
442 pthread_mutex_unlock (&reqlock);
443
444 errno = 0; /* strictly unnecessary */
445
446 type = req->type;
447
448 switch (type)
449 {
450 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
451 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
452
453 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
454
455 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
456 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
457 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
458
459 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
460 case REQ_CLOSE: req->result = close (req->fd); break;
461 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
462 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
463 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
464
465 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
466 case REQ_FSYNC: req->result = fsync (req->fd); break;
467
468 case REQ_QUIT:
469 break;
470
471 default:
472 req->result = ENOSYS;
473 break;
474 }
475
476 req->errorno = errno;
477
478 pthread_mutex_lock (&reslock);
479
480 req->next = 0;
481
482 if (rese)
483 {
484 rese->next = req;
485 rese = req;
486 } 360 }
487 else 361 else
488 { 362 {
489 rese = ress = req; 363 sv_result = newSViv (req->result);
490 364 SvREADONLY_on (sv_result);
491 /* write a dummy byte to the pipe so fh becomes ready */
492 write (respipe [1], &respipe, 1);
493 } 365 }
494 366
495 pthread_mutex_unlock (&reslock); 367 switch (req->type)
368 {
369 case EIO_WD_OPEN:
370 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
371 break;
372
373 case EIO_READDIR:
374 {
375 SV *rv = &PL_sv_undef;
376
377 if (req->result >= 0)
378 {
379 int i;
380 char *names = (char *)req->ptr2;
381 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
382 AV *av = newAV ();
383
384 av_extend (av, req->result - 1);
385
386 for (i = 0; i < req->result; ++i)
387 {
388 if (req->int1 & EIO_READDIR_DENTS)
389 {
390 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
391
392 if (req->int1 & EIO_READDIR_CUSTOM2)
393 {
394 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
395 AV *avent = newAV ();
396
397 av_extend (avent, 2);
398
399 if (!sv_type [ent->type])
400 {
401 sv_type [ent->type] = newSViv (ent->type);
402 SvREADONLY_on (sv_type [ent->type]);
403 }
404
405 av_store (avent, 0, namesv);
406 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
407 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
408
409 av_store (av, i, newRV_noinc ((SV *)avent));
410 }
411 else
412 av_store (av, i, namesv);
413
414 ++ent;
415 }
416 else
417 {
418 SV *name = newSVpv (names, 0);
419 av_store (av, i, name);
420 names += SvCUR (name) + 1;
421 }
422 }
423
424 rv = sv_2mortal (newRV_noinc ((SV *)av));
425 }
426
427 PUSHs (rv);
428
429 if (req->int1 & EIO_READDIR_CUSTOM1)
430 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
431 }
432 break;
433
434 case EIO_OPEN:
435 {
436 /* convert fd to fh */
437 SV *fh = &PL_sv_undef;
438
439 if (req->result >= 0)
440 {
441 GV *gv = (GV *)sv_newmortal ();
442 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
443 char sym [64];
444 int symlen;
445
446 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
447 gv_init (gv, aio_stash, sym, symlen, 0);
448
449 symlen = snprintf (
450 sym,
451 sizeof (sym),
452 "%s&=%d",
453 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
454 (int)req->result
455 );
456
457 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
458 fh = (SV *)gv;
459 }
460
461 PUSHs (fh);
462 }
463 break;
464
465 case EIO_STATVFS:
466 case EIO_FSTATVFS:
467 {
468 SV *rv = &PL_sv_undef;
469
470#ifndef _WIN32
471 if (req->result >= 0)
472 {
473 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
474 HV *hv = newHV ();
475
476 rv = sv_2mortal (newRV_noinc ((SV *)hv));
477
478 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
479 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
480 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
481 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
482 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
483 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
484 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
485 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
486 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
487 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
488 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
489 }
490#endif
491
492 PUSHs (rv);
493 }
494
495 break;
496
497 case EIO_GROUP:
498 req->int1 = 2; /* mark group as finished */
499
500 if (req->sv1)
501 {
502 int i;
503 AV *av = (AV *)req->sv1;
504
505 EXTEND (SP, AvFILL (av) + 1);
506 for (i = 0; i <= AvFILL (av); ++i)
507 PUSHs (*av_fetch (av, i, 0));
508 }
509 break;
510
511 case EIO_NOP:
512 case EIO_BUSY:
513 break;
514
515 case EIO_READLINK:
516 case EIO_REALPATH:
517 if (req->result > 0)
518 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
519 break;
520
521 case EIO_STAT:
522 case EIO_LSTAT:
523 case EIO_FSTAT:
524 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
525
526 if (!(PL_laststatval = req->result))
527 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
528 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
529
530 PUSHs (sv_result);
531 break;
532
533 case EIO_SEEK:
534 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
535 break;
536
537 case EIO_READ:
538 {
539 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
540 *SvEND (req->sv2) = 0;
541 SvPOK_only (req->sv2);
542 SvSETMAGIC (req->sv2);
543 PUSHs (sv_result);
544 }
545 break;
546
547 case EIO_CUSTOM:
548 if (req->feed == fiemap)
549 {
550 if (!req->result)
551 {
552 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
553
554 if (fiemap->fm_extent_count)
555 {
556 AV *av = newAV ();
557 int i;
558
559 while (fiemap->fm_mapped_extents)
560 {
561 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
562 AV *ext_av = newAV ();
563
564 av_store (ext_av, 3, newSVuv (extent->fe_flags));
565 av_store (ext_av, 2, newSVval64 (extent->fe_length));
566 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
567 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
568
569 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
570 }
571
572 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
573 }
574 else
575 {
576 SvIV_set (sv_result, fiemap->fm_mapped_extents);
577 PUSHs (sv_result);
578 }
579 }
580 }
581 else
582 PUSHs (sv_result);
583 break;
584
585 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
586 if (req->result > 0)
587 SvIV_set (sv_result, 0);
588 /* FALLTHROUGH */
589
590 default:
591 PUSHs (sv_result);
592 break;
593 }
594
595 errno = req->errorno;
596
597 PUTBACK;
598 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
599 SPAGAIN;
600
601 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
602 SvREFCNT_dec (sv_result);
603 else
604 sv_result_cache = sv_result;
605
606 FREETMPS;
607 LEAVE;
608
609 PUTBACK;
496 } 610 }
497 while (type != REQ_QUIT); 611
612 return !!SvTRUE (ERRSV);
613}
614
615static void
616req_destroy (aio_req req)
617{
618 if (req->self)
619 {
620 sv_unmagic (req->self, PERL_MAGIC_ext);
621 SvREFCNT_dec (req->self);
622 }
623
624 SvREFCNT_dec (req->sv1);
625 SvREFCNT_dec (req->sv2);
626 SvREFCNT_dec (req->sv3);
627 SvREFCNT_dec (req->sv4);
628 SvREFCNT_dec (req->callback);
629
630 free (req);
631}
632
633static void
634req_cancel_subs (aio_req grp)
635{
636 if (grp->type != EIO_GROUP)
637 return;
638
639 SvREFCNT_dec (grp->sv2);
640 grp->sv2 = 0;
641
642 eio_grp_cancel (grp);
643}
644
645static void ecb_cold
646create_respipe (void)
647{
648 if (s_epipe_renew (&respipe))
649 croak ("IO::AIO: unable to initialize result pipe");
650}
651
652static void
653poll_wait (void)
654{
655 while (eio_nreqs ())
656 {
657 int size;
658
659 X_LOCK (reslock);
660 size = res_queue.size;
661 X_UNLOCK (reslock);
662
663 if (size)
664 return;
665
666 etp_maybe_start_thread ();
667
668 s_epipe_wait (&respipe);
669 }
670}
671
672static int
673poll_cb (void)
674{
675 for (;;)
676 {
677 int res = eio_poll ();
678
679 if (res > 0)
680 croak (0);
681
682 if (!max_outstanding || max_outstanding > eio_nreqs ())
683 return res;
684
685 poll_wait ();
686 }
687}
688
689static void ecb_cold
690reinit (void)
691{
692 create_respipe ();
693
694 if (eio_init (want_poll, done_poll) < 0)
695 croak ("IO::AIO: unable to initialise eio library");
696}
697
698/*****************************************************************************/
699
700#if !_POSIX_MAPPED_FILES
701# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
702# define munmap(addr,length) (errno = ENOSYS, -1)
703#endif
704
705#if !_POSIX_MEMORY_PROTECTION
706# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
707# define PROT_NONE 0
708# define PROT_WRITE 0
709# define MAP_PRIVATE 0
710# define MAP_SHARED 0
711# define MAP_FIXED 0
712#endif
713
714#define MMAP_MAGIC PERL_MAGIC_ext
715
716static int ecb_cold
717mmap_free (pTHX_ SV *sv, MAGIC *mg)
718{
719 int old_errno = errno;
720 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
721 errno = old_errno;
722
723 mg->mg_obj = 0; /* just in case */
724
725 SvREADONLY_off (sv);
726
727 if (SvPVX (sv) != mg->mg_ptr)
728 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
729
730 SvCUR_set (sv, 0);
731 SvPVX (sv) = 0;
732 SvOK_off (sv);
498 733
499 return 0; 734 return 0;
500} 735}
501 736
737static MGVTBL mmap_vtbl = {
738 0, 0, 0, 0, mmap_free
739};
740
741/*****************************************************************************/
742
743static SV *
744get_cb (SV *cb_sv)
745{
746 SvGETMAGIC (cb_sv);
747 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
748}
749
750static aio_req ecb_noinline
751dreq (SV *callback)
752{
753 SV *cb_cv;
754 aio_req req;
755 int req_pri = next_pri;
756 next_pri = EIO_PRI_DEFAULT;
757
758 cb_cv = get_cb (callback);
759
760 req = calloc (sizeof (*req), 1);
761 if (!req)
762 croak ("out of memory during eio_req allocation");
763
764 req->callback = SvREFCNT_inc (cb_cv);
765 req->pri = req_pri;
766
767 return req;
768}
769
502#define dREQ \ 770#define dREQ \
503 aio_req req; \ 771 aio_req req = dreq (callback); \
772
773#define REQ_SEND \
774 PUTBACK; \
775 req_submit (req); \
776 SPAGAIN; \
504 \ 777 \
505 if (SvOK (callback) && !SvROK (callback)) \ 778 if (GIMME_V != G_VOID) \
506 croak ("clalback must be undef or of reference type"); \ 779 XPUSHs (req_sv (req, aio_req_stash));
507 \ 780
508 Newz (0, req, 1, aio_cb); \ 781ecb_inline void
509 if (!req) \ 782req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
510 croak ("out of memory during aio_req allocation"); \ 783{
511 \ 784 if (expect_false (SvROK (path)))
512 req->callback = newSVsv (callback); 785 {
513 786 SV *rv = SvRV (path);
787 SV *wdob;
788
789 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
790 {
791 path = AvARRAY (rv)[1];
792 wdob = AvARRAY (rv)[0];
793
794 if (SvOK (wdob))
795 {
796 *wd = SvAIO_WD (wdob);
797 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
798 }
799 else
800 *wd = EIO_INVALID_WD;
801 }
802 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
803 {
804 *wd = (aio_wd)(long)SvIVX (rv);
805 *wdsv = SvREFCNT_inc_NN (rv);
806 *ptr = ".";
807 return; /* path set to "." */
808 }
809 else
810 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
811 }
812
813 *pathsv = newSVsv (path);
814 *ptr = SvPVbyte_nolen (*pathsv);
815}
816
817static void ecb_noinline
818req_set_path1 (aio_req req, SV *path)
819{
820 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
821}
822
823static void ecb_noinline
824req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
825{
826 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
827
828 switch (SvTYPE (rv))
829 {
830 case SVt_PVIO:
831 case SVt_PVLV:
832 case SVt_PVGV:
833 req->type = type_fh;
834 req->sv1 = newSVsv (fh_or_path);
835 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
836 break;
837
838 default:
839 req->type = type_path;
840 req_set_path1 (req, fh_or_path);
841 break;
842 }
843}
844
845XS(boot_IO__AIO) ecb_cold;
846
514MODULE = IO::AIO PACKAGE = IO::AIO 847MODULE = IO::AIO PACKAGE = IO::AIO
515 848
516PROTOTYPES: ENABLE 849PROTOTYPES: ENABLE
517 850
518BOOT: 851BOOT:
519{ 852{
520 create_pipe (); 853 static const struct {
521 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 854 const char *name;
522} 855 IV iv;
856 } *civ, const_iv[] = {
857# define const_niv(name, value) { # name, (IV) value },
858# define const_iv(name) { # name, (IV) name },
859# define const_eio(name) { # name, (IV) EIO_ ## name },
523 860
861 /* you have to re-run ./gendef0 after adding/Removing any constants here */
862
863 const_iv (ENOSYS)
864 const_iv (EXDEV)
865 const_iv (EBADR)
866
867 const_iv (O_RDONLY)
868 const_iv (O_WRONLY)
869 const_iv (O_RDWR)
870 const_iv (O_CREAT)
871 const_iv (O_TRUNC)
872 const_iv (O_EXCL)
873 const_iv (O_APPEND)
874
875 const_iv (O_ASYNC)
876 const_iv (O_DIRECT)
877 const_iv (O_NOATIME)
878
879 const_iv (O_CLOEXEC)
880 const_iv (O_NOCTTY)
881 const_iv (O_NOFOLLOW)
882 const_iv (O_NONBLOCK)
883 const_iv (O_EXEC)
884 const_iv (O_SEARCH)
885 const_iv (O_DIRECTORY)
886 const_iv (O_DSYNC)
887 const_iv (O_RSYNC)
888 const_iv (O_SYNC)
889 const_iv (O_TTY_INIT)
890
891 const_iv (S_IFIFO)
892 const_iv (S_IFCHR)
893 const_iv (S_IFBLK)
894 const_iv (S_IFLNK)
895 const_iv (S_IFREG)
896 const_iv (S_IFDIR)
897 const_iv (S_IFWHT)
898 const_iv (S_IFSOCK)
899 const_iv (S_IFMT)
900
901 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
902 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
903 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
904 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
905 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
906 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
907
908 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
909 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
910 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
911 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
912 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
913
914 const_iv (ST_RDONLY)
915 const_iv (ST_NOSUID)
916 const_iv (ST_NODEV)
917 const_iv (ST_NOEXEC)
918 const_iv (ST_SYNCHRONOUS)
919 const_iv (ST_MANDLOCK)
920 const_iv (ST_WRITE)
921 const_iv (ST_APPEND)
922 const_iv (ST_IMMUTABLE)
923 const_iv (ST_NOATIME)
924 const_iv (ST_NODIRATIME)
925 const_iv (ST_RELATIME)
926
927 const_iv (PROT_NONE)
928 const_iv (PROT_EXEC)
929 const_iv (PROT_READ)
930 const_iv (PROT_WRITE)
931
932 /*const_iv (MAP_FIXED)*/
933 const_iv (MAP_PRIVATE)
934 const_iv (MAP_SHARED)
935 const_iv (MAP_ANONYMOUS)
936
937 /* linuxish */
938 const_iv (MAP_HUGETLB)
939 const_iv (MAP_LOCKED)
940 const_iv (MAP_NORESERVE)
941 const_iv (MAP_POPULATE)
942 const_iv (MAP_NONBLOCK)
943
944 const_iv (FIEMAP_FLAG_SYNC)
945 const_iv (FIEMAP_FLAG_XATTR)
946 const_iv (FIEMAP_FLAGS_COMPAT)
947 const_iv (FIEMAP_EXTENT_LAST)
948 const_iv (FIEMAP_EXTENT_UNKNOWN)
949 const_iv (FIEMAP_EXTENT_DELALLOC)
950 const_iv (FIEMAP_EXTENT_ENCODED)
951 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
952 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
953 const_iv (FIEMAP_EXTENT_DATA_INLINE)
954 const_iv (FIEMAP_EXTENT_DATA_TAIL)
955 const_iv (FIEMAP_EXTENT_UNWRITTEN)
956 const_iv (FIEMAP_EXTENT_MERGED)
957 const_iv (FIEMAP_EXTENT_SHARED)
958
959 const_eio (SEEK_SET)
960 const_eio (SEEK_CUR)
961 const_eio (SEEK_END)
962
963 const_eio (MCL_FUTURE)
964 const_eio (MCL_CURRENT)
965
966 const_eio (MS_ASYNC)
967 const_eio (MS_INVALIDATE)
968 const_eio (MS_SYNC)
969
970 const_eio (MT_MODIFY)
971
972 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
973 const_eio (SYNC_FILE_RANGE_WRITE)
974 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
975
976 const_eio (FALLOC_FL_KEEP_SIZE)
977
978 const_eio (READDIR_DENTS)
979 const_eio (READDIR_DIRS_FIRST)
980 const_eio (READDIR_STAT_ORDER)
981 const_eio (READDIR_FOUND_UNKNOWN)
982
983 const_eio (DT_UNKNOWN)
984 const_eio (DT_FIFO)
985 const_eio (DT_CHR)
986 const_eio (DT_DIR)
987 const_eio (DT_BLK)
988 const_eio (DT_REG)
989 const_eio (DT_LNK)
990 const_eio (DT_SOCK)
991 const_eio (DT_WHT)
992 };
993
994 aio_stash = gv_stashpv ("IO::AIO" , 1);
995 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
996 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
997 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
998
999 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1000 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1001
1002 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1003
1004 reinit ();
1005}
1006
524void 1007void
525min_parallel(nthreads) 1008reinit ()
526 int nthreads 1009 PROTOTYPE:
1010
1011void
1012max_poll_reqs (unsigned int nreqs)
527 PROTOTYPE: $ 1013 PROTOTYPE: $
1014 CODE:
1015 eio_set_max_poll_reqs (nreqs);
528 1016
529void 1017void
530max_parallel(nthreads) 1018max_poll_time (double nseconds)
531 int nthreads
532 PROTOTYPE: $ 1019 PROTOTYPE: $
533
534int
535max_outstanding(nreqs)
536 int nreqs
537 PROTOTYPE: $
538 CODE: 1020 CODE:
539 RETVAL = max_outstanding; 1021 eio_set_max_poll_time (nseconds);
1022
1023void
1024min_parallel (unsigned int nthreads)
1025 PROTOTYPE: $
1026 CODE:
1027 eio_set_min_parallel (nthreads);
1028
1029void
1030max_parallel (unsigned int nthreads)
1031 PROTOTYPE: $
1032 CODE:
1033 eio_set_max_parallel (nthreads);
1034
1035void
1036max_idle (unsigned int nthreads)
1037 PROTOTYPE: $
1038 CODE:
1039 eio_set_max_idle (nthreads);
1040
1041void
1042idle_timeout (unsigned int seconds)
1043 PROTOTYPE: $
1044 CODE:
1045 eio_set_idle_timeout (seconds);
1046
1047void
1048max_outstanding (unsigned int maxreqs)
1049 PROTOTYPE: $
1050 CODE:
540 max_outstanding = nreqs; 1051 max_outstanding = maxreqs;
541 1052
542void 1053void
543aio_open(pathname,flags,mode,callback=&PL_sv_undef) 1054aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
544 SV * pathname
545 int flags
546 int mode
547 SV * callback
548 PROTOTYPE: $$$;$
549 CODE: 1055 PPCODE:
550{ 1056{
551 dREQ; 1057 dREQ;
552 1058
1059 req->type = EIO_WD_OPEN;
1060 req_set_path1 (req, pathname);
1061
1062 REQ_SEND;
1063}
1064
1065void
1066aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1067 PPCODE:
1068{
1069 dREQ;
1070
553 req->type = REQ_OPEN; 1071 req->type = EIO_OPEN;
554 req->data = newSVsv (pathname); 1072 req_set_path1 (req, pathname);
555 req->dataptr = SvPVbyte_nolen (req->data);
556 req->fd = flags; 1073 req->int1 = flags;
557 req->mode = mode; 1074 req->int2 = mode;
558 1075
559 send_req (req); 1076 REQ_SEND;
560} 1077}
561 1078
562void 1079void
563aio_close(fh,callback=&PL_sv_undef) 1080aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
564 SV * fh
565 SV * callback
566 PROTOTYPE: $;$
567 ALIAS: 1081 ALIAS:
568 aio_close = REQ_CLOSE
569 aio_fsync = REQ_FSYNC 1082 aio_fsync = EIO_FSYNC
570 aio_fdatasync = REQ_FDATASYNC 1083 aio_fdatasync = EIO_FDATASYNC
1084 aio_syncfs = EIO_SYNCFS
571 CODE: 1085 PPCODE:
572{ 1086{
1087 int fd = s_fileno_croak (fh, 0);
573 dREQ; 1088 dREQ;
574 1089
575 req->type = ix; 1090 req->type = ix;
576 req->fh = newSVsv (fh); 1091 req->sv1 = newSVsv (fh);
577 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1092 req->int1 = fd;
578 1093
579 send_req (req); 1094 REQ_SEND;
580} 1095}
581 1096
582void 1097void
1098aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1099 PPCODE:
1100{
1101 int fd = s_fileno_croak (fh, 0);
1102 dREQ;
1103
1104 req->type = EIO_SYNC_FILE_RANGE;
1105 req->sv1 = newSVsv (fh);
1106 req->int1 = fd;
1107 req->offs = offset;
1108 req->size = nbytes;
1109 req->int2 = flags;
1110
1111 REQ_SEND;
1112}
1113
1114void
1115aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1116 PPCODE:
1117{
1118 int fd = s_fileno_croak (fh, 0);
1119 dREQ;
1120
1121 req->type = EIO_FALLOCATE;
1122 req->sv1 = newSVsv (fh);
1123 req->int1 = fd;
1124 req->int2 = mode;
1125 req->offs = offset;
1126 req->size = len;
1127
1128 REQ_SEND;
1129}
1130
1131void
1132aio_close (SV *fh, SV *callback=&PL_sv_undef)
1133 PPCODE:
1134{
1135 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1136 int fd = s_fileno_croak (fh, 0);
1137 dREQ;
1138
1139 if (expect_false (close_fd < 0))
1140 {
1141 int pipefd [2];
1142
1143 if (
1144#ifdef _WIN32
1145 _pipe (pipefd, 1, _O_BINARY) < 0
1146#else
1147 pipe (pipefd) < 0
1148 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1149#endif
1150 || close (pipefd [1]) < 0
1151 )
1152 abort (); /*D*/
1153
1154 close_fd = pipefd [0];
1155 }
1156
1157 req->type = EIO_DUP2;
1158 req->int1 = close_fd;
1159 req->sv2 = newSVsv (fh);
1160 req->int2 = fd;
1161
1162 REQ_SEND;
1163}
1164
1165void
1166aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1167 PPCODE:
1168{
1169 STRLEN svlen;
1170 int fd = s_fileno_croak (fh, 0);
1171 dREQ;
1172
1173 req->type = EIO_SEEK;
1174 req->sv1 = newSVsv (fh);
1175 req->int1 = fd;
1176 req->offs = SvVAL64 (offset);
1177 req->int2 = whence;
1178
1179 REQ_SEND;
1180}
1181
1182void
583aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1183aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
584 SV * fh
585 UV offset
586 IV length
587 SV * data
588 IV dataoffset
589 SV * callback
590 ALIAS: 1184 ALIAS:
591 aio_read = REQ_READ 1185 aio_read = EIO_READ
592 aio_write = REQ_WRITE 1186 aio_write = EIO_WRITE
593 PROTOTYPE: $$$$$;$
594 CODE: 1187 PPCODE:
595{ 1188{
596 aio_req req;
597 STRLEN svlen; 1189 STRLEN svlen;
1190 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
598 char *svptr = SvPVbyte (data, svlen); 1191 char *svptr = SvPVbyte (data, svlen);
599 1192 UV len = SvUV (length);
600 SvUPGRADE (data, SVt_PV);
601 SvPOK_on (data);
602 1193
603 if (dataoffset < 0) 1194 if (dataoffset < 0)
604 dataoffset += svlen; 1195 dataoffset += svlen;
605 1196
606 if (dataoffset < 0 || dataoffset > svlen) 1197 if (dataoffset < 0 || dataoffset > svlen)
607 croak ("data offset outside of string"); 1198 croak ("dataoffset outside of data scalar");
608 1199
609 if (ix == REQ_WRITE) 1200 if (ix == EIO_WRITE)
610 { 1201 {
611 /* write: check length and adjust. */ 1202 /* write: check length and adjust. */
612 if (length < 0 || length + dataoffset > svlen) 1203 if (!SvOK (length) || len + dataoffset > svlen)
613 length = svlen - dataoffset; 1204 len = svlen - dataoffset;
614 } 1205 }
615 else 1206 else
616 { 1207 {
617 /* read: grow scalar as necessary */ 1208 /* read: check type and grow scalar as necessary */
1209 SvUPGRADE (data, SVt_PV);
618 svptr = SvGROW (data, length + dataoffset); 1210 svptr = SvGROW (data, len + dataoffset + 1);
619 } 1211 }
620
621 if (length < 0)
622 croak ("length must not be negative");
623 1212
624 { 1213 {
625 dREQ; 1214 dREQ;
626 1215
627 req->type = ix; 1216 req->type = ix;
628 req->fh = newSVsv (fh); 1217 req->sv1 = newSVsv (fh);
629 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1218 req->int1 = fd;
630 : IoOFP (sv_2io (fh))); 1219 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
631 req->offset = offset; 1220 req->size = len;
632 req->length = length;
633 req->data = SvREFCNT_inc (data); 1221 req->sv2 = SvREFCNT_inc (data);
634 req->dataptr = (char *)svptr + dataoffset; 1222 req->ptr2 = (char *)svptr + dataoffset;
1223 req->stroffset = dataoffset;
635 1224
636 if (!SvREADONLY (data)) 1225 if (!SvREADONLY (data))
637 { 1226 {
638 SvREADONLY_on (data); 1227 SvREADONLY_on (data);
639 req->data2ptr = (void *)data; 1228 req->flags |= FLAG_SV2_RO_OFF;
640 } 1229 }
641 1230
642 send_req (req); 1231 REQ_SEND;
643 } 1232 }
644} 1233}
645 1234
646void 1235void
647aio_readahead(fh,offset,length,callback=&PL_sv_undef) 1236aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
648 SV * fh 1237 ALIAS:
649 UV offset 1238 aio_readlink = EIO_READLINK
650 IV length 1239 aio_realpath = EIO_REALPATH
651 SV * callback
652 PROTOTYPE: $$$;$
653 CODE: 1240 PPCODE:
654{ 1241{
1242 dREQ;
1243
1244 req->type = ix;
1245 req_set_path1 (req, pathname);
1246
1247 REQ_SEND;
1248}
1249
1250void
1251aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1252 PPCODE:
1253{
1254 int ifd = s_fileno_croak (in_fh , 0);
1255 int ofd = s_fileno_croak (out_fh, 1);
655 dREQ; 1256 dREQ;
656 1257
1258 req->type = EIO_SENDFILE;
1259 req->sv1 = newSVsv (out_fh);
1260 req->int1 = ofd;
1261 req->sv2 = newSVsv (in_fh);
1262 req->int2 = ifd;
1263 req->offs = in_offset;
1264 req->size = length;
1265
1266 REQ_SEND;
1267}
1268
1269void
1270aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1271 PPCODE:
1272{
1273 int fd = s_fileno_croak (fh, 0);
1274 dREQ;
1275
657 req->type = REQ_READAHEAD; 1276 req->type = EIO_READAHEAD;
658 req->fh = newSVsv (fh); 1277 req->sv1 = newSVsv (fh);
659 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1278 req->int1 = fd;
660 req->offset = offset; 1279 req->offs = offset;
661 req->length = length; 1280 req->size = length;
662 1281
663 send_req (req); 1282 REQ_SEND;
664} 1283}
665 1284
666void 1285void
667aio_stat(fh_or_path,callback=&PL_sv_undef) 1286aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
668 SV * fh_or_path
669 SV * callback
670 ALIAS: 1287 ALIAS:
671 aio_stat = REQ_STAT 1288 aio_stat = EIO_STAT
672 aio_lstat = REQ_LSTAT 1289 aio_lstat = EIO_LSTAT
1290 aio_statvfs = EIO_STATVFS
1291 PPCODE:
1292{
1293 dREQ;
1294
1295 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1296
1297 REQ_SEND;
1298}
1299
1300UV
1301major (UV dev)
1302 ALIAS:
1303 minor = 1
673 CODE: 1304 CODE:
1305 RETVAL = ix ? major (dev) : minor (dev);
1306 OUTPUT:
1307 RETVAL
1308
1309UV
1310makedev (UV maj, UV min)
1311 CODE:
1312 RETVAL = makedev (maj, min);
1313 OUTPUT:
1314 RETVAL
1315
1316void
1317aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1318 PPCODE:
674{ 1319{
675 dREQ; 1320 dREQ;
676 1321
677 New (0, req->statdata, 1, Stat_t); 1322 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
678 if (!req->statdata) 1323 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
679 { 1324 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
680 free_req (req);
681 croak ("out of memory during aio_req->statdata allocation");
682 }
683 1325
684 if (SvPOK (fh_or_path)) 1326 REQ_SEND;
685 {
686 req->type = ix;
687 req->data = newSVsv (fh_or_path);
688 req->dataptr = SvPVbyte_nolen (req->data);
689 }
690 else
691 {
692 req->type = REQ_FSTAT;
693 req->fh = newSVsv (fh_or_path);
694 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
695 }
696
697 send_req (req);
698} 1327}
699 1328
700void 1329void
1330aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1331 PPCODE:
1332{
1333 dREQ;
1334
1335 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1336 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1337
1338 REQ_SEND;
1339}
1340
1341void
1342aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1343 PPCODE:
1344{
1345 dREQ;
1346
1347 req->int2 = mode;
1348 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1349
1350 REQ_SEND;
1351}
1352
1353void
1354aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1355 PPCODE:
1356{
1357 dREQ;
1358
1359 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1360 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1361 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1362
1363 REQ_SEND;
1364}
1365
1366void
1367aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1368 PPCODE:
1369{
1370 dREQ;
1371
1372 req->type = EIO_READDIR;
1373 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1374
1375 if (flags & EIO_READDIR_DENTS)
1376 req->int1 |= EIO_READDIR_CUSTOM2;
1377
1378 req_set_path1 (req, pathname);
1379
1380 REQ_SEND;
1381}
1382
1383void
1384aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1385 PPCODE:
1386{
1387 dREQ;
1388
1389 req->type = EIO_MKDIR;
1390 req->int2 = mode;
1391 req_set_path1 (req, pathname);
1392
1393 REQ_SEND;
1394}
1395
1396void
701aio_unlink(pathname,callback=&PL_sv_undef) 1397aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
702 SV * pathname
703 SV * callback
704 ALIAS: 1398 ALIAS:
705 aio_unlink = REQ_UNLINK 1399 aio_unlink = EIO_UNLINK
706 aio_rmdir = REQ_RMDIR 1400 aio_rmdir = EIO_RMDIR
1401 aio_readdir = EIO_READDIR
707 CODE: 1402 PPCODE:
708{ 1403{
709 dREQ; 1404 dREQ;
710 1405
711 req->type = ix; 1406 req->type = ix;
712 req->data = newSVsv (pathname); 1407 req_set_path1 (req, pathname);
713 req->dataptr = SvPVbyte_nolen (req->data);
714
715 send_req (req);
716}
717 1408
1409 REQ_SEND;
1410}
1411
718void 1412void
719aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1413aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
720 SV * oldpath 1414 ALIAS:
721 SV * newpath 1415 aio_link = EIO_LINK
722 SV * callback 1416 aio_symlink = EIO_SYMLINK
1417 aio_rename = EIO_RENAME
723 CODE: 1418 PPCODE:
724{ 1419{
1420 eio_wd wd2 = 0;
725 dREQ; 1421 dREQ;
726 1422
727 req->type = REQ_SYMLINK; 1423 req->type = ix;
728 req->fh = newSVsv (oldpath); 1424 req_set_path1 (req, oldpath);
729 req->data2ptr = SvPVbyte_nolen (req->fh); 1425 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
730 req->data = newSVsv (newpath); 1426 req->int3 = (long)wd2;
731 req->dataptr = SvPVbyte_nolen (req->data);
732 1427
733 send_req (req); 1428 REQ_SEND;
734} 1429}
735 1430
736void 1431void
737flush() 1432aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
738 PROTOTYPE: 1433 PPCODE:
1434{
1435 dREQ;
1436
1437 req->type = EIO_MKNOD;
1438 req->int2 = (mode_t)mode;
1439 req->offs = dev;
1440 req_set_path1 (req, pathname);
1441
1442 REQ_SEND;
1443}
1444
1445void
1446aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1447 ALIAS:
1448 aio_mtouch = EIO_MTOUCH
1449 aio_msync = EIO_MSYNC
1450 PPCODE:
1451{
1452 STRLEN svlen;
1453 char *svptr = SvPVbyte (data, svlen);
1454 UV len = SvUV (length);
1455
1456 if (offset < 0)
1457 offset += svlen;
1458
1459 if (offset < 0 || offset > svlen)
1460 croak ("offset outside of scalar");
1461
1462 if (!SvOK (length) || len + offset > svlen)
1463 len = svlen - offset;
1464
1465 {
1466 dREQ;
1467
1468 req->type = ix;
1469 req->sv2 = SvREFCNT_inc (data);
1470 req->ptr2 = (char *)svptr + offset;
1471 req->size = len;
1472 req->int1 = flags;
1473
1474 REQ_SEND;
1475 }
1476}
1477
1478void
1479aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1480 PPCODE:
1481{
1482 STRLEN svlen;
1483 char *svptr = SvPVbyte (data, svlen);
1484 UV len = SvUV (length);
1485
1486 if (offset < 0)
1487 offset += svlen;
1488
1489 if (offset < 0 || offset > svlen)
1490 croak ("offset outside of scalar");
1491
1492 if (!SvOK (length) || len + offset > svlen)
1493 len = svlen - offset;
1494
1495 {
1496 dREQ;
1497
1498 req->type = EIO_MLOCK;
1499 req->sv2 = SvREFCNT_inc (data);
1500 req->ptr2 = (char *)svptr + offset;
1501 req->size = len;
1502
1503 REQ_SEND;
1504 }
1505}
1506
1507void
1508aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1509 PPCODE:
1510{
1511 dREQ;
1512
1513 req->type = EIO_MLOCKALL;
1514 req->int1 = flags;
1515
1516 REQ_SEND;
1517}
1518
1519void
1520aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1521 PPCODE:
1522{
1523 int fd = s_fileno_croak (fh, 0);
1524 dREQ;
1525
1526 req->type = EIO_CUSTOM;
1527 req->sv1 = newSVsv (fh);
1528 req->int1 = fd;
1529
1530 req->feed = fiemap;
1531 /* keep our fingers crossed that the next two types are 64 bit */
1532 req->offs = start;
1533 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1534 req->int2 = flags;
1535 req->int3 = SvOK (count) ? SvIV (count) : -1;
1536
1537 REQ_SEND;
1538}
1539
1540void
1541aio_busy (double delay, SV *callback=&PL_sv_undef)
1542 PPCODE:
1543{
1544 dREQ;
1545
1546 req->type = EIO_BUSY;
1547 req->nv1 = delay < 0. ? 0. : delay;
1548
1549 REQ_SEND;
1550}
1551
1552void
1553aio_group (SV *callback=&PL_sv_undef)
1554 PPCODE:
1555{
1556 dREQ;
1557
1558 req->type = EIO_GROUP;
1559
1560 req_submit (req);
1561 XPUSHs (req_sv (req, aio_grp_stash));
1562}
1563
1564void
1565aio_nop (SV *callback=&PL_sv_undef)
1566 ALIAS:
1567 aio_nop = EIO_NOP
1568 aio_sync = EIO_SYNC
1569 PPCODE:
1570{
1571 dREQ;
1572
1573 req->type = ix;
1574
1575 REQ_SEND;
1576}
1577
1578int
1579aioreq_pri (int pri = 0)
739 CODE: 1580 CODE:
1581 RETVAL = next_pri;
1582 if (items > 0)
1583 {
1584 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1585 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1586 next_pri = pri;
1587 }
1588 OUTPUT:
1589 RETVAL
1590
1591void
1592aioreq_nice (int nice = 0)
1593 CODE:
1594 nice = next_pri - nice;
1595 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1596 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1597 next_pri = nice;
1598
1599void
1600flush ()
1601 CODE:
740 while (nreqs) 1602 while (eio_nreqs ())
741 { 1603 {
742 poll_wait (); 1604 poll_wait ();
743 poll_cb (); 1605 poll_cb ();
744 } 1606 }
745 1607
746void 1608int
747poll() 1609poll ()
748 PROTOTYPE:
749 CODE: 1610 CODE:
750 if (nreqs)
751 {
752 poll_wait (); 1611 poll_wait ();
753 poll_cb (); 1612 RETVAL = poll_cb ();
754 }
755
756int
757poll_fileno()
758 PROTOTYPE:
759 CODE:
760 RETVAL = respipe [0];
761 OUTPUT: 1613 OUTPUT:
762 RETVAL 1614 RETVAL
763 1615
764int 1616int
1617poll_fileno ()
1618 CODE:
1619 RETVAL = s_epipe_fd (&respipe);
1620 OUTPUT:
1621 RETVAL
1622
1623int
765poll_cb(...) 1624poll_cb (...)
766 PROTOTYPE: 1625 PROTOTYPE:
767 CODE: 1626 CODE:
768 RETVAL = poll_cb (); 1627 RETVAL = poll_cb ();
769 OUTPUT: 1628 OUTPUT:
770 RETVAL 1629 RETVAL
771 1630
772void 1631void
773poll_wait() 1632poll_wait ()
774 PROTOTYPE:
775 CODE: 1633 CODE:
776 if (nreqs)
777 poll_wait (); 1634 poll_wait ();
778 1635
779int 1636int
780nreqs() 1637nreqs ()
781 PROTOTYPE:
782 CODE: 1638 CODE:
783 RETVAL = nreqs; 1639 RETVAL = eio_nreqs ();
784 OUTPUT: 1640 OUTPUT:
785 RETVAL 1641 RETVAL
786 1642
1643int
1644nready ()
1645 CODE:
1646 RETVAL = eio_nready ();
1647 OUTPUT:
1648 RETVAL
1649
1650int
1651npending ()
1652 CODE:
1653 RETVAL = eio_npending ();
1654 OUTPUT:
1655 RETVAL
1656
1657int
1658nthreads ()
1659 CODE:
1660 RETVAL = eio_nthreads ();
1661 OUTPUT:
1662 RETVAL
1663
1664int
1665fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1666 CODE:
1667 RETVAL = posix_fadvise (fh, offset, length, advice);
1668 OUTPUT:
1669 RETVAL
1670
1671IV
1672sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1673 CODE:
1674 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1675 OUTPUT:
1676 RETVAL
1677
1678void
1679mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1680 PPCODE:
1681 sv_unmagic (scalar, MMAP_MAGIC);
1682{
1683 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1684 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1685 if (addr == (void *)-1)
1686 XSRETURN_NO;
1687
1688 sv_force_normal (scalar);
1689
1690 /* we store the length in mg_obj, as namlen is I32 :/ */
1691 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1692 ->mg_obj = (SV *)length;
1693
1694 SvUPGRADE (scalar, SVt_PV); /* nop... */
1695
1696 if (!(prot & PROT_WRITE))
1697 SvREADONLY_on (scalar);
1698
1699 if (SvLEN (scalar))
1700 Safefree (SvPVX (scalar));
1701
1702 SvPVX (scalar) = (char *)addr;
1703 SvCUR_set (scalar, length);
1704 SvLEN_set (scalar, 0);
1705 SvPOK_only (scalar);
1706
1707 XSRETURN_YES;
1708}
1709
1710void
1711munmap (SV *scalar)
1712 CODE:
1713 sv_unmagic (scalar, MMAP_MAGIC);
1714
1715int
1716madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1717 ALIAS:
1718 mprotect = 1
1719 CODE:
1720{
1721 STRLEN svlen;
1722 void *addr = SvPVbyte (scalar, svlen);
1723 size_t len = SvUV (length);
1724
1725 if (offset < 0)
1726 offset += svlen;
1727
1728 if (offset < 0 || offset > svlen)
1729 croak ("offset outside of scalar");
1730
1731 if (!SvOK (length) || len + offset > svlen)
1732 len = svlen - offset;
1733
1734 addr = (void *)(((intptr_t)addr) + offset);
1735 eio_page_align (&addr, &len);
1736
1737 switch (ix)
1738 {
1739 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1740 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1741 }
1742}
1743 OUTPUT:
1744 RETVAL
1745
1746int
1747munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1748 CODE:
1749{
1750 STRLEN svlen;
1751 void *addr = SvPVbyte (scalar, svlen);
1752 size_t len = SvUV (length);
1753
1754 if (offset < 0)
1755 offset += svlen;
1756
1757 if (offset < 0 || offset > svlen)
1758 croak ("offset outside of scalar");
1759
1760 if (!SvOK (length) || len + offset > svlen)
1761 len = svlen - offset;
1762
1763 addr = (void *)(((intptr_t)addr) + offset);
1764 eio_page_align (&addr, &len);
1765#if _POSIX_MEMLOCK_RANGE
1766 RETVAL = munlock (addr, len);
1767#else
1768 RETVAL = ((errno = ENOSYS), -1);
1769#endif
1770}
1771 OUTPUT:
1772 RETVAL
1773
1774int
1775munlockall ()
1776 CODE:
1777#if _POSIX_MEMLOCK
1778 munlockall ();
1779#else
1780 RETVAL = -1;
1781 errno = ENOSYS;
1782#endif
1783 OUTPUT:
1784 RETVAL
1785
1786void _on_next_submit (SV *cb)
1787 CODE:
1788 SvREFCNT_dec (on_next_submit);
1789 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1790
1791PROTOTYPES: DISABLE
1792
1793MODULE = IO::AIO PACKAGE = IO::AIO::WD
1794
1795BOOT:
1796{
1797 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1798 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1799}
1800
1801void
1802DESTROY (SV *self)
1803 CODE:
1804{
1805 aio_wd wd = SvAIO_WD (self);
1806#if HAVE_AT
1807 {
1808 SV *callback = &PL_sv_undef;
1809 dREQ; /* clobbers next_pri :/ */
1810 next_pri = req->pri; /* restore next_pri */
1811 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1812 req->type = EIO_WD_CLOSE;
1813 req->wd = wd;
1814 REQ_SEND;
1815 }
1816#else
1817 eio_wd_close_sync (wd);
1818#endif
1819}
1820
1821MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1822
1823void
1824cancel (aio_req_ornot req)
1825 CODE:
1826 eio_cancel (req);
1827
1828void
1829cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1830 PPCODE:
1831{
1832 if (GIMME_V != G_VOID)
1833 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1834
1835 if (items > 1)
1836 {
1837 SV *cb_cv =get_cb (callback);
1838
1839 SvREFCNT_dec (req->callback);
1840 req->callback = SvREFCNT_inc (cb_cv);
1841 }
1842}
1843
1844MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1845
1846void
1847add (aio_req grp, ...)
1848 PPCODE:
1849{
1850 int i;
1851
1852 if (grp->int1 == 2)
1853 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1854
1855 for (i = 1; i < items; ++i )
1856 {
1857 aio_req req;
1858
1859 if (GIMME_V != G_VOID)
1860 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1861
1862 req = SvAIO_REQ (ST (i));
1863
1864 if (req)
1865 eio_grp_add (grp, req);
1866 }
1867}
1868
1869void
1870cancel_subs (aio_req_ornot req)
1871 CODE:
1872 req_cancel_subs (req);
1873
1874void
1875result (aio_req grp, ...)
1876 CODE:
1877{
1878 int i;
1879 AV *av;
1880
1881 grp->errorno = errno;
1882
1883 av = newAV ();
1884 av_extend (av, items - 1);
1885
1886 for (i = 1; i < items; ++i )
1887 av_push (av, newSVsv (ST (i)));
1888
1889 SvREFCNT_dec (grp->sv1);
1890 grp->sv1 = (SV *)av;
1891}
1892
1893void
1894errno (aio_req grp, int errorno = errno)
1895 CODE:
1896 grp->errorno = errorno;
1897
1898void
1899limit (aio_req grp, int limit)
1900 CODE:
1901 eio_grp_limit (grp, limit);
1902
1903void
1904feed (aio_req grp, SV *callback=&PL_sv_undef)
1905 CODE:
1906{
1907 SvREFCNT_dec (grp->sv2);
1908 grp->sv2 = newSVsv (callback);
1909 grp->feed = aio_grp_feed;
1910
1911 if (grp->int2 <= 0)
1912 grp->int2 = 2;
1913
1914 eio_grp_limit (grp, grp->int2);
1915}
1916

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