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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.33 by root, Mon Aug 22 23:21:57 2005 UTC vs.
Revision 1.214 by root, Mon May 28 17:00:19 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
10#include <pthread.h> 11#include <stddef.h>
11 12#include <stdlib.h>
13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
14
15#include <unistd.h> 16#include <limits.h>
16#include <fcntl.h> 17#include <fcntl.h>
17#include <signal.h>
18#include <sched.h> 18#include <sched.h>
19 19
20#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
21# if __linux 24#if __linux__
22# include <sys/sendfile.h> 25# include <linux/fs.h>
23# elif __freebsd 26# ifdef FS_IOC_FIEMAP
24# include <sys/socket.h> 27# include <linux/types.h>
25# include <sys/uio.h> 28# include <linux/fiemap.h>
26# elif __hpux 29# define HAVE_FIEMAP 1
27# include <sys/socket.h>
28# endif 30# endif
29#endif 31#endif
30 32
31#if __ia64 33/* perl namespace pollution */
32# define STACKSIZE 65536 34#undef VERSION
35
36/* perl stupidly overrides readdir and maybe others */
37/* with thread-unsafe versions, imagine that :( */
38#undef readdir
39#undef opendir
40#undef closedir
41
42#ifdef _WIN32
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
33#else 79#else
34# 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 */
35#endif 142# endif
143#endif
36 144
37enum { 145/* defines all sorts of constants to 0 unless they are already defined */
38 REQ_QUIT, 146#include "def0.h"
39 REQ_OPEN, REQ_CLOSE,
40 REQ_READ, REQ_WRITE, REQ_READAHEAD,
41 REQ_SENDFILE,
42 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
43 REQ_FSYNC, REQ_FDATASYNC,
44 REQ_UNLINK, REQ_RMDIR,
45 REQ_SYMLINK,
46};
47 147
48typedef struct aio_cb { 148#ifndef makedev
49 struct aio_cb *volatile next; 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
50 157
51 int type; 158#ifndef PAGESIZE
159# define PAGESIZE sysconf (_SC_PAGESIZE)
160#endif
52 161
53 int fd, fd2; 162/*****************************************************************************/
54 off_t offset;
55 size_t length;
56 ssize_t result;
57 mode_t mode; /* open */
58 int errorno;
59 SV *data, *callback;
60 SV *fh, *fh2;
61 void *dataptr, *data2ptr;
62 STRLEN dataoffset;
63
64 Stat_t *statdata;
65} aio_cb;
66
67typedef aio_cb *aio_req;
68
69static int started, wanted;
70static volatile int nreqs;
71static int max_outstanding = 1<<30;
72static int respipe [2];
73
74static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
75static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
76static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
77
78static volatile aio_req reqs, reqe; /* queue start, queue end */
79static volatile aio_req ress, rese; /* queue start, queue end */
80
81static void free_req (aio_req req)
82{
83 if (req->data)
84 SvREFCNT_dec (req->data);
85
86 if (req->fh)
87 SvREFCNT_dec (req->fh);
88
89 if (req->fh2)
90 SvREFCNT_dec (req->fh2);
91
92 if (req->statdata)
93 Safefree (req->statdata);
94
95 if (req->callback)
96 SvREFCNT_dec (req->callback);
97
98 Safefree (req);
99}
100 163
101static void 164static void
102poll_wait () 165fiemap (eio_req *req)
103{ 166{
104 if (nreqs && !ress) 167 req->result = -1;
105 {
106 fd_set rfd;
107 FD_ZERO(&rfd);
108 FD_SET(respipe [0], &rfd);
109 168
110 select (respipe [0] + 1, &rfd, 0, 0, 0); 169#if HAVE_FIEMAP
111 }
112}
113
114static int
115poll_cb ()
116{
117 dSP;
118 int count = 0; 170 int count = req->int3;
119 int do_croak = 0; 171
120 aio_req req; 172 /* heuristic: first try with 64 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 maybe the 72 below is probably overkill */
175 if (count < 0)
176 count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
121 177
122 for (;;) 178 for (;;)
123 { 179 {
124 pthread_mutex_lock (&reslock); 180 struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
125 req = ress; 181 errno = ENOMEM;
126
127 if (req) 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_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
200 break; /* autosizing successful, we are done */
201
202 fiemap->fm_flags = req->int2;
203 fiemap->fm_extent_count = 0;
204
205 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
206 return;
207
208 count = fiemap->fm_mapped_extents;
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))
128 { 356 {
129 ress = req->next; 357 sv_result = sv_result_cache; sv_result_cache = 0;
130 358 SvIV_set (sv_result, req->result);
131 if (!ress) 359 SvIOK_only (sv_result);
132 {
133 /* read any signals sent by the worker threads */
134 char buf [32];
135 while (read (respipe [0], buf, 32) == 32)
136 ;
137
138 rese = 0;
139 }
140 }
141
142 pthread_mutex_unlock (&reslock);
143
144 if (!req)
145 break;
146
147 nreqs--;
148
149 if (req->type == REQ_QUIT)
150 started--;
151 else
152 {
153 int errorno = errno;
154 errno = req->errorno;
155
156 if (req->type == REQ_READ)
157 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
158
159 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
160 SvREADONLY_off (req->data);
161
162 if (req->statdata)
163 {
164 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
165 PL_laststatval = req->result;
166 PL_statcache = *(req->statdata);
167 }
168
169 ENTER;
170 PUSHMARK (SP);
171 XPUSHs (sv_2mortal (newSViv (req->result)));
172
173 if (req->type == REQ_OPEN)
174 {
175 /* convert fd to fh */
176 SV *fh;
177
178 PUTBACK;
179 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
180 SPAGAIN;
181
182 fh = SvREFCNT_inc (POPs);
183
184 PUSHMARK (SP);
185 XPUSHs (sv_2mortal (fh));
186 }
187
188 if (SvOK (req->callback))
189 {
190 PUTBACK;
191 call_sv (req->callback, G_VOID | G_EVAL);
192 SPAGAIN;
193
194 if (SvTRUE (ERRSV))
195 {
196 free_req (req);
197 croak (0);
198 }
199 }
200
201 LEAVE;
202
203 errno = errorno;
204 count++;
205 }
206
207 free_req (req);
208 }
209
210 return count;
211}
212
213static void *aio_proc(void *arg);
214
215static void
216start_thread (void)
217{
218 sigset_t fullsigset, oldsigset;
219 pthread_t tid;
220 pthread_attr_t attr;
221
222 pthread_attr_init (&attr);
223 pthread_attr_setstacksize (&attr, STACKSIZE);
224 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
225
226 sigfillset (&fullsigset);
227 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
228
229 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
230 started++;
231
232 sigprocmask (SIG_SETMASK, &oldsigset, 0);
233}
234
235static void
236send_req (aio_req req)
237{
238 while (started < wanted && nreqs >= started)
239 start_thread ();
240
241 nreqs++;
242
243 pthread_mutex_lock (&reqlock);
244
245 req->next = 0;
246
247 if (reqe)
248 {
249 reqe->next = req;
250 reqe = req;
251 }
252 else
253 reqe = reqs = req;
254
255 pthread_cond_signal (&reqwait);
256 pthread_mutex_unlock (&reqlock);
257
258 if (nreqs > max_outstanding)
259 for (;;)
260 {
261 poll_cb ();
262
263 if (nreqs <= max_outstanding)
264 break;
265
266 poll_wait ();
267 }
268}
269
270static void
271end_thread (void)
272{
273 aio_req req;
274 Newz (0, req, 1, aio_cb);
275 req->type = REQ_QUIT;
276
277 send_req (req);
278}
279
280static void min_parallel (int nthreads)
281{
282 if (wanted < nthreads)
283 wanted = nthreads;
284}
285
286static void max_parallel (int nthreads)
287{
288 int cur = started;
289
290 if (wanted > nthreads)
291 wanted = nthreads;
292
293 while (cur > wanted)
294 {
295 end_thread ();
296 cur--;
297 }
298
299 while (started > wanted)
300 {
301 poll_wait ();
302 poll_cb ();
303 }
304}
305
306static void create_pipe ()
307{
308 if (pipe (respipe))
309 croak ("unable to initialize result pipe");
310
311 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
312 croak ("cannot set result pipe to nonblocking mode");
313
314 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
315 croak ("cannot set result pipe to nonblocking mode");
316}
317
318static void atfork_prepare (void)
319{
320 pthread_mutex_lock (&reqlock);
321 pthread_mutex_lock (&reslock);
322}
323
324static void atfork_parent (void)
325{
326 pthread_mutex_unlock (&reslock);
327 pthread_mutex_unlock (&reqlock);
328}
329
330static void atfork_child (void)
331{
332 aio_req prv;
333
334 started = 0;
335
336 while (reqs)
337 {
338 prv = reqs;
339 reqs = prv->next;
340 free_req (prv);
341 }
342
343 reqs = reqe = 0;
344
345 while (ress)
346 {
347 prv = ress;
348 ress = prv->next;
349 free_req (prv);
350 }
351
352 ress = rese = 0;
353
354 close (respipe [0]);
355 close (respipe [1]);
356 create_pipe ();
357
358 atfork_parent ();
359}
360
361/*****************************************************************************/
362/* work around various missing functions */
363
364#if !HAVE_PREADWRITE
365# define pread aio_pread
366# define pwrite aio_pwrite
367
368/*
369 * make our pread/pwrite safe against themselves, but not against
370 * normal read/write by using a mutex. slows down execution a lot,
371 * but that's your problem, not mine.
372 */
373static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
374
375static ssize_t
376pread (int fd, void *buf, size_t count, off_t offset)
377{
378 ssize_t res;
379 off_t ooffset;
380
381 pthread_mutex_lock (&iolock);
382 ooffset = lseek (fd, 0, SEEK_CUR);
383 lseek (fd, offset, SEEK_SET);
384 res = read (fd, buf, count);
385 lseek (fd, ooffset, SEEK_SET);
386 pthread_mutex_unlock (&iolock);
387
388 return res;
389}
390
391static ssize_t
392pwrite (int fd, void *buf, size_t count, off_t offset)
393{
394 ssize_t res;
395 off_t ooffset;
396
397 pthread_mutex_lock (&iolock);
398 ooffset = lseek (fd, 0, SEEK_CUR);
399 lseek (fd, offset, SEEK_SET);
400 res = write (fd, buf, count);
401 lseek (fd, offset, SEEK_SET);
402 pthread_mutex_unlock (&iolock);
403
404 return res;
405}
406#endif
407
408#if !HAVE_FDATASYNC
409# define fdatasync fsync
410#endif
411
412#if !HAVE_READAHEAD
413# define readahead aio_readahead
414
415static char readahead_buf[4096];
416
417static ssize_t
418readahead (int fd, off_t offset, size_t count)
419{
420 while (count > 0)
421 {
422 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
423
424 pread (fd, readahead_buf, len, offset);
425 offset += len;
426 count -= len;
427 }
428
429 errno = 0;
430}
431#endif
432
433/* sendfile always needs emulation */
434static ssize_t
435sendfile_ (int ofd, int ifd, off_t offset, size_t count)
436{
437 ssize_t res;
438
439 if (!count)
440 return 0;
441
442#if __linux
443 res = sendfile (ofd, ifd, &offset, count);
444
445#elif __freebsd
446 /*
447 * Of course, the freebsd sendfile is a dire hack with no thoughts
448 * wasted on making it similar to other i/o functions.
449 */
450 {
451 off_t sbytes;
452 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
453
454 if (!res && errno == EAGAIN)
455 /* maybe on others, too, as usual, the manpage leaves you guessing */
456 res = sbytes;
457 }
458
459#elif __hpux
460 res = sendfile (ofd, ifd, offset, count, 0, 0);
461
462#else
463 res = -1;
464 errno = ENOSYS;
465#endif
466
467 if (res < 0 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK))
468 {
469 /* emulate sendfile. this is a major pain in the ass */
470 char *buf = malloc (4096);
471 res = 0;
472
473 for (;;)
474 {
475 ssize_t cnt;
476
477 cnt = pread (ifd, buf, 4096, offset);
478
479 if (cnt <= 0)
480 {
481 if (cnt && !res) res = -1;
482 break;
483 }
484
485 cnt = write (ofd, buf, cnt);
486
487 if (cnt <= 0)
488 {
489 if (cnt && !res) res = -1;
490 break;
491 }
492
493 offset += cnt;
494 res += cnt;
495 }
496
497 {
498 int errorno = errno;
499 free (buf);
500 errno = errorno;
501 }
502 }
503
504 return res;
505}
506
507/*****************************************************************************/
508
509static void *
510aio_proc (void *thr_arg)
511{
512 aio_req req;
513 int type;
514
515 do
516 {
517 pthread_mutex_lock (&reqlock);
518
519 for (;;)
520 {
521 req = reqs;
522
523 if (reqs)
524 {
525 reqs = reqs->next;
526 if (!reqs) reqe = 0;
527 }
528
529 if (req)
530 break;
531
532 pthread_cond_wait (&reqwait, &reqlock);
533 }
534
535 pthread_mutex_unlock (&reqlock);
536
537 errno = 0; /* strictly unnecessary */
538
539 type = req->type;
540
541 switch (type)
542 {
543 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
544 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
545
546 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
547 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
548
549 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
550 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
551 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
552
553 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
554 case REQ_CLOSE: req->result = close (req->fd); break;
555 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
556 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
557 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
558
559 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
560 case REQ_FSYNC: req->result = fsync (req->fd); break;
561
562 case REQ_QUIT:
563 break;
564
565 default:
566 req->result = ENOSYS;
567 break;
568 }
569
570 req->errorno = errno;
571
572 pthread_mutex_lock (&reslock);
573
574 req->next = 0;
575
576 if (rese)
577 {
578 rese->next = req;
579 rese = req;
580 } 360 }
581 else 361 else
582 { 362 {
583 rese = ress = req; 363 sv_result = newSViv (req->result);
584 364 SvREADONLY_on (sv_result);
585 /* write a dummy byte to the pipe so fh becomes ready */
586 write (respipe [1], &respipe, 1);
587 } 365 }
588 366
589 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 HAVE_FIEMAP
551 if (!req->result)
552 {
553 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
554
555 if (fiemap->fm_extent_count)
556 {
557 AV *av = newAV ();
558 int i;
559
560 while (fiemap->fm_mapped_extents)
561 {
562 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
563 AV *ext_av = newAV ();
564
565 av_store (ext_av, 3, newSVuv (extent->fe_flags));
566 av_store (ext_av, 2, newSVval64 (extent->fe_length));
567 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
568 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
569
570 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
571 }
572
573 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
574 }
575 else
576 {
577 SvIV_set (sv_result, fiemap->fm_mapped_extents);
578 PUSHs (sv_result);
579 }
580 }
581#endif
582 }
583 else
584 PUSHs (sv_result);
585 break;
586
587 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
588 if (req->result > 0)
589 SvIV_set (sv_result, 0);
590 /* FALLTHROUGH */
591
592 default:
593 PUSHs (sv_result);
594 break;
595 }
596
597 errno = req->errorno;
598
599 PUTBACK;
600 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
601 SPAGAIN;
602
603 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
604 SvREFCNT_dec (sv_result);
605 else
606 sv_result_cache = sv_result;
607
608 FREETMPS;
609 LEAVE;
610
611 PUTBACK;
590 } 612 }
591 while (type != REQ_QUIT); 613
614 return !!SvTRUE (ERRSV);
615}
616
617static void
618req_destroy (aio_req req)
619{
620 if (req->self)
621 {
622 sv_unmagic (req->self, PERL_MAGIC_ext);
623 SvREFCNT_dec (req->self);
624 }
625
626 SvREFCNT_dec (req->sv1);
627 SvREFCNT_dec (req->sv2);
628 SvREFCNT_dec (req->sv3);
629 SvREFCNT_dec (req->sv4);
630 SvREFCNT_dec (req->callback);
631
632 free (req);
633}
634
635static void
636req_cancel_subs (aio_req grp)
637{
638 if (grp->type != EIO_GROUP)
639 return;
640
641 SvREFCNT_dec (grp->sv2);
642 grp->sv2 = 0;
643
644 eio_grp_cancel (grp);
645}
646
647static void ecb_cold
648create_respipe (void)
649{
650 if (s_epipe_renew (&respipe))
651 croak ("IO::AIO: unable to initialize result pipe");
652}
653
654static void
655poll_wait (void)
656{
657 while (eio_nreqs ())
658 {
659 int size;
660
661 X_LOCK (reslock);
662 size = res_queue.size;
663 X_UNLOCK (reslock);
664
665 if (size)
666 return;
667
668 etp_maybe_start_thread ();
669
670 s_epipe_wait (&respipe);
671 }
672}
673
674static int
675poll_cb (void)
676{
677 for (;;)
678 {
679 int res = eio_poll ();
680
681 if (res > 0)
682 croak (0);
683
684 if (!max_outstanding || max_outstanding > eio_nreqs ())
685 return res;
686
687 poll_wait ();
688 }
689}
690
691static void ecb_cold
692reinit (void)
693{
694 create_respipe ();
695
696 if (eio_init (want_poll, done_poll) < 0)
697 croak ("IO::AIO: unable to initialise eio library");
698}
699
700/*****************************************************************************/
701
702#if !_POSIX_MAPPED_FILES
703# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
704# define munmap(addr,length) EIO_ENOSYS ()
705#endif
706
707#if !_POSIX_MEMORY_PROTECTION
708# define mprotect(addr,len,prot) EIO_ENOSYS ()
709# define PROT_NONE 0
710# define PROT_WRITE 0
711# define MAP_PRIVATE 0
712# define MAP_SHARED 0
713# define MAP_FIXED 0
714#endif
715
716#define MMAP_MAGIC PERL_MAGIC_ext
717
718static int ecb_cold
719mmap_free (pTHX_ SV *sv, MAGIC *mg)
720{
721 int old_errno = errno;
722 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
723 errno = old_errno;
724
725 mg->mg_obj = 0; /* just in case */
726
727 SvREADONLY_off (sv);
728
729 if (SvPVX (sv) != mg->mg_ptr)
730 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
731
732 SvCUR_set (sv, 0);
733 SvPVX (sv) = 0;
734 SvOK_off (sv);
592 735
593 return 0; 736 return 0;
594} 737}
595 738
739static MGVTBL mmap_vtbl = {
740 0, 0, 0, 0, mmap_free
741};
742
743/*****************************************************************************/
744
745static SV *
746get_cb (SV *cb_sv)
747{
748 SvGETMAGIC (cb_sv);
749 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
750}
751
752static aio_req ecb_noinline
753dreq (SV *callback)
754{
755 SV *cb_cv;
756 aio_req req;
757 int req_pri = next_pri;
758 next_pri = EIO_PRI_DEFAULT;
759
760 cb_cv = get_cb (callback);
761
762 req = calloc (sizeof (*req), 1);
763 if (!req)
764 croak ("out of memory during eio_req allocation");
765
766 req->callback = SvREFCNT_inc (cb_cv);
767 req->pri = req_pri;
768
769 return req;
770}
771
596#define dREQ \ 772#define dREQ \
597 aio_req req; \ 773 aio_req req = dreq (callback); \
774
775#define REQ_SEND \
776 PUTBACK; \
777 req_submit (req); \
778 SPAGAIN; \
598 \ 779 \
599 if (SvOK (callback) && !SvROK (callback)) \ 780 if (GIMME_V != G_VOID) \
600 croak ("clalback must be undef or of reference type"); \ 781 XPUSHs (req_sv (req, aio_req_stash));
601 \ 782
602 Newz (0, req, 1, aio_cb); \ 783ecb_inline void
603 if (!req) \ 784req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
604 croak ("out of memory during aio_req allocation"); \ 785{
605 \ 786 if (expect_false (SvROK (path)))
606 req->callback = newSVsv (callback); 787 {
607 788 SV *rv = SvRV (path);
789 SV *wdob;
790
791 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
792 {
793 path = AvARRAY (rv)[1];
794 wdob = AvARRAY (rv)[0];
795
796 if (SvOK (wdob))
797 {
798 *wd = SvAIO_WD (wdob);
799 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
800 }
801 else
802 *wd = EIO_INVALID_WD;
803 }
804 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
805 {
806 *wd = (aio_wd)(long)SvIVX (rv);
807 *wdsv = SvREFCNT_inc_NN (rv);
808 *ptr = ".";
809 return; /* path set to "." */
810 }
811 else
812 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
813 }
814
815 *pathsv = newSVsv (path);
816 *ptr = SvPVbyte_nolen (*pathsv);
817}
818
819static void ecb_noinline
820req_set_path1 (aio_req req, SV *path)
821{
822 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
823}
824
825static void ecb_noinline
826req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
827{
828 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
829
830 switch (SvTYPE (rv))
831 {
832 case SVt_PVIO:
833 case SVt_PVLV:
834 case SVt_PVGV:
835 req->type = type_fh;
836 req->sv1 = newSVsv (fh_or_path);
837 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
838 break;
839
840 default:
841 req->type = type_path;
842 req_set_path1 (req, fh_or_path);
843 break;
844 }
845}
846
847XS(boot_IO__AIO) ecb_cold;
848
608MODULE = IO::AIO PACKAGE = IO::AIO 849MODULE = IO::AIO PACKAGE = IO::AIO
609 850
610PROTOTYPES: ENABLE 851PROTOTYPES: ENABLE
611 852
612BOOT: 853BOOT:
613{ 854{
614 create_pipe (); 855 static const struct {
615 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 856 const char *name;
616} 857 IV iv;
858 } *civ, const_iv[] = {
859# define const_niv(name, value) { # name, (IV) value },
860# define const_iv(name) { # name, (IV) name },
861# define const_eio(name) { # name, (IV) EIO_ ## name },
617 862
863 /* you have to re-run ./gendef0 after adding/Removing any constants here */
864
865 const_iv (ENOSYS)
866 const_iv (EXDEV)
867 const_iv (EBADR)
868
869 const_iv (O_RDONLY)
870 const_iv (O_WRONLY)
871 const_iv (O_RDWR)
872 const_iv (O_CREAT)
873 const_iv (O_TRUNC)
874 const_iv (O_EXCL)
875 const_iv (O_APPEND)
876
877 const_iv (O_ASYNC)
878 const_iv (O_DIRECT)
879 const_iv (O_NOATIME)
880
881 const_iv (O_CLOEXEC)
882 const_iv (O_NOCTTY)
883 const_iv (O_NOFOLLOW)
884 const_iv (O_NONBLOCK)
885 const_iv (O_EXEC)
886 const_iv (O_SEARCH)
887 const_iv (O_DIRECTORY)
888 const_iv (O_DSYNC)
889 const_iv (O_RSYNC)
890 const_iv (O_SYNC)
891 const_iv (O_TTY_INIT)
892
893 const_iv (S_IFIFO)
894 const_iv (S_IFCHR)
895 const_iv (S_IFBLK)
896 const_iv (S_IFLNK)
897 const_iv (S_IFREG)
898 const_iv (S_IFDIR)
899 const_iv (S_IFWHT)
900 const_iv (S_IFSOCK)
901 const_iv (S_IFMT)
902
903 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
904 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
905 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
906 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
907 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
908 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
909
910 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
911 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
912 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
913 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
914 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
915
916 const_iv (ST_RDONLY)
917 const_iv (ST_NOSUID)
918 const_iv (ST_NODEV)
919 const_iv (ST_NOEXEC)
920 const_iv (ST_SYNCHRONOUS)
921 const_iv (ST_MANDLOCK)
922 const_iv (ST_WRITE)
923 const_iv (ST_APPEND)
924 const_iv (ST_IMMUTABLE)
925 const_iv (ST_NOATIME)
926 const_iv (ST_NODIRATIME)
927 const_iv (ST_RELATIME)
928
929 const_iv (PROT_NONE)
930 const_iv (PROT_EXEC)
931 const_iv (PROT_READ)
932 const_iv (PROT_WRITE)
933
934 /*const_iv (MAP_FIXED)*/
935 const_iv (MAP_PRIVATE)
936 const_iv (MAP_SHARED)
937 const_iv (MAP_ANONYMOUS)
938
939 /* linuxish */
940 const_iv (MAP_HUGETLB)
941 const_iv (MAP_LOCKED)
942 const_iv (MAP_NORESERVE)
943 const_iv (MAP_POPULATE)
944 const_iv (MAP_NONBLOCK)
945
946 const_iv (FIEMAP_FLAG_SYNC)
947 const_iv (FIEMAP_FLAG_XATTR)
948 const_iv (FIEMAP_FLAGS_COMPAT)
949 const_iv (FIEMAP_EXTENT_LAST)
950 const_iv (FIEMAP_EXTENT_UNKNOWN)
951 const_iv (FIEMAP_EXTENT_DELALLOC)
952 const_iv (FIEMAP_EXTENT_ENCODED)
953 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
954 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
955 const_iv (FIEMAP_EXTENT_DATA_INLINE)
956 const_iv (FIEMAP_EXTENT_DATA_TAIL)
957 const_iv (FIEMAP_EXTENT_UNWRITTEN)
958 const_iv (FIEMAP_EXTENT_MERGED)
959 const_iv (FIEMAP_EXTENT_SHARED)
960
961 const_iv (SPLICE_F_MOVE)
962 const_iv (SPLICE_F_NONBLOCK)
963 const_iv (SPLICE_F_MORE)
964 const_iv (SPLICE_F_GIFT)
965
966 const_iv (SEEK_DATA)
967 const_iv (SEEK_HOLE)
968
969 /* libeio constants */
970 const_eio (SEEK_SET)
971 const_eio (SEEK_CUR)
972 const_eio (SEEK_END)
973
974 const_eio (MCL_FUTURE)
975 const_eio (MCL_CURRENT)
976
977 const_eio (MS_ASYNC)
978 const_eio (MS_INVALIDATE)
979 const_eio (MS_SYNC)
980
981 const_eio (MT_MODIFY)
982
983 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
984 const_eio (SYNC_FILE_RANGE_WRITE)
985 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
986
987 const_eio (FALLOC_FL_KEEP_SIZE)
988
989 const_eio (READDIR_DENTS)
990 const_eio (READDIR_DIRS_FIRST)
991 const_eio (READDIR_STAT_ORDER)
992 const_eio (READDIR_FOUND_UNKNOWN)
993
994 const_eio (DT_UNKNOWN)
995 const_eio (DT_FIFO)
996 const_eio (DT_CHR)
997 const_eio (DT_DIR)
998 const_eio (DT_BLK)
999 const_eio (DT_REG)
1000 const_eio (DT_LNK)
1001 const_eio (DT_SOCK)
1002 const_eio (DT_WHT)
1003 };
1004
1005 aio_stash = gv_stashpv ("IO::AIO" , 1);
1006 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1007 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1008 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1009
1010 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1011 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1012
1013 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1014
1015 reinit ();
1016}
1017
618void 1018void
619min_parallel(nthreads) 1019reinit ()
620 int nthreads 1020 PROTOTYPE:
1021
1022void
1023max_poll_reqs (unsigned int nreqs)
621 PROTOTYPE: $ 1024 PROTOTYPE: $
1025 CODE:
1026 eio_set_max_poll_reqs (nreqs);
622 1027
623void 1028void
624max_parallel(nthreads) 1029max_poll_time (double nseconds)
625 int nthreads
626 PROTOTYPE: $ 1030 PROTOTYPE: $
627
628int
629max_outstanding(nreqs)
630 int nreqs
631 PROTOTYPE: $
632 CODE: 1031 CODE:
633 RETVAL = max_outstanding; 1032 eio_set_max_poll_time (nseconds);
1033
1034void
1035min_parallel (unsigned int nthreads)
1036 PROTOTYPE: $
1037 CODE:
1038 eio_set_min_parallel (nthreads);
1039
1040void
1041max_parallel (unsigned int nthreads)
1042 PROTOTYPE: $
1043 CODE:
1044 eio_set_max_parallel (nthreads);
1045
1046void
1047max_idle (unsigned int nthreads)
1048 PROTOTYPE: $
1049 CODE:
1050 eio_set_max_idle (nthreads);
1051
1052void
1053idle_timeout (unsigned int seconds)
1054 PROTOTYPE: $
1055 CODE:
1056 eio_set_idle_timeout (seconds);
1057
1058void
1059max_outstanding (unsigned int maxreqs)
1060 PROTOTYPE: $
1061 CODE:
634 max_outstanding = nreqs; 1062 max_outstanding = maxreqs;
635 1063
636void 1064void
637aio_open(pathname,flags,mode,callback=&PL_sv_undef) 1065aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
638 SV * pathname
639 int flags
640 int mode
641 SV * callback
642 PROTOTYPE: $$$;$
643 CODE: 1066 PPCODE:
644{ 1067{
645 dREQ; 1068 dREQ;
646 1069
1070 req->type = EIO_WD_OPEN;
1071 req_set_path1 (req, pathname);
1072
1073 REQ_SEND;
1074}
1075
1076void
1077aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1078 PPCODE:
1079{
1080 dREQ;
1081
647 req->type = REQ_OPEN; 1082 req->type = EIO_OPEN;
648 req->data = newSVsv (pathname); 1083 req_set_path1 (req, pathname);
649 req->dataptr = SvPVbyte_nolen (req->data);
650 req->fd = flags; 1084 req->int1 = flags;
651 req->mode = mode; 1085 req->int2 = mode;
652 1086
653 send_req (req); 1087 REQ_SEND;
654} 1088}
655 1089
656void 1090void
657aio_close(fh,callback=&PL_sv_undef) 1091aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
658 SV * fh
659 SV * callback
660 PROTOTYPE: $;$
661 ALIAS: 1092 ALIAS:
662 aio_close = REQ_CLOSE
663 aio_fsync = REQ_FSYNC 1093 aio_fsync = EIO_FSYNC
664 aio_fdatasync = REQ_FDATASYNC 1094 aio_fdatasync = EIO_FDATASYNC
1095 aio_syncfs = EIO_SYNCFS
665 CODE: 1096 PPCODE:
666{ 1097{
1098 int fd = s_fileno_croak (fh, 0);
667 dREQ; 1099 dREQ;
668 1100
669 req->type = ix; 1101 req->type = ix;
670 req->fh = newSVsv (fh); 1102 req->sv1 = newSVsv (fh);
671 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1103 req->int1 = fd;
672 1104
673 send_req (req); 1105 REQ_SEND;
674} 1106}
675 1107
676void 1108void
1109aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1110 PPCODE:
1111{
1112 int fd = s_fileno_croak (fh, 0);
1113 dREQ;
1114
1115 req->type = EIO_SYNC_FILE_RANGE;
1116 req->sv1 = newSVsv (fh);
1117 req->int1 = fd;
1118 req->offs = offset;
1119 req->size = nbytes;
1120 req->int2 = flags;
1121
1122 REQ_SEND;
1123}
1124
1125void
1126aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1127 PPCODE:
1128{
1129 int fd = s_fileno_croak (fh, 0);
1130 dREQ;
1131
1132 req->type = EIO_FALLOCATE;
1133 req->sv1 = newSVsv (fh);
1134 req->int1 = fd;
1135 req->int2 = mode;
1136 req->offs = offset;
1137 req->size = len;
1138
1139 REQ_SEND;
1140}
1141
1142void
1143aio_close (SV *fh, SV *callback=&PL_sv_undef)
1144 PPCODE:
1145{
1146 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1147 int fd = s_fileno_croak (fh, 0);
1148 dREQ;
1149
1150 if (expect_false (close_fd < 0))
1151 {
1152 int pipefd [2];
1153
1154 if (
1155#ifdef _WIN32
1156 _pipe (pipefd, 1, _O_BINARY) < 0
1157#else
1158 pipe (pipefd) < 0
1159 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1160#endif
1161 || close (pipefd [1]) < 0
1162 )
1163 abort (); /*D*/
1164
1165 close_fd = pipefd [0];
1166 }
1167
1168 req->type = EIO_DUP2;
1169 req->int1 = close_fd;
1170 req->sv2 = newSVsv (fh);
1171 req->int2 = fd;
1172
1173 REQ_SEND;
1174}
1175
1176void
1177aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1178 PPCODE:
1179{
1180 int fd = s_fileno_croak (fh, 0);
1181 dREQ;
1182
1183 req->type = EIO_SEEK;
1184 req->sv1 = newSVsv (fh);
1185 req->int1 = fd;
1186 req->offs = SvVAL64 (offset);
1187 req->int2 = whence;
1188
1189 REQ_SEND;
1190}
1191
1192void
677aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1193aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
678 SV * fh
679 UV offset
680 UV length
681 SV * data
682 UV dataoffset
683 SV * callback
684 ALIAS: 1194 ALIAS:
685 aio_read = REQ_READ 1195 aio_read = EIO_READ
686 aio_write = REQ_WRITE 1196 aio_write = EIO_WRITE
687 PROTOTYPE: $$$$$;$
688 CODE: 1197 PPCODE:
689{ 1198{
690 aio_req req;
691 STRLEN svlen; 1199 STRLEN svlen;
1200 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
692 char *svptr = SvPVbyte (data, svlen); 1201 char *svptr = SvPVbyte (data, svlen);
693 1202 UV len = SvUV (length);
694 SvUPGRADE (data, SVt_PV);
695 SvPOK_on (data);
696 1203
697 if (dataoffset < 0) 1204 if (dataoffset < 0)
698 dataoffset += svlen; 1205 dataoffset += svlen;
699 1206
700 if (dataoffset < 0 || dataoffset > svlen) 1207 if (dataoffset < 0 || dataoffset > svlen)
701 croak ("data offset outside of string"); 1208 croak ("dataoffset outside of data scalar");
702 1209
703 if (ix == REQ_WRITE) 1210 if (ix == EIO_WRITE)
704 { 1211 {
705 /* write: check length and adjust. */ 1212 /* write: check length and adjust. */
706 if (length < 0 || length + dataoffset > svlen) 1213 if (!SvOK (length) || len + dataoffset > svlen)
707 length = svlen - dataoffset; 1214 len = svlen - dataoffset;
708 } 1215 }
709 else 1216 else
710 { 1217 {
711 /* read: grow scalar as necessary */ 1218 /* read: check type and grow scalar as necessary */
1219 SvUPGRADE (data, SVt_PV);
712 svptr = SvGROW (data, length + dataoffset); 1220 svptr = SvGROW (data, len + dataoffset + 1);
713 } 1221 }
714
715 if (length < 0)
716 croak ("length must not be negative");
717 1222
718 { 1223 {
719 dREQ; 1224 dREQ;
720 1225
721 req->type = ix; 1226 req->type = ix;
722 req->fh = newSVsv (fh); 1227 req->sv1 = newSVsv (fh);
723 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1228 req->int1 = fd;
724 : IoOFP (sv_2io (fh))); 1229 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
725 req->offset = offset; 1230 req->size = len;
726 req->length = length;
727 req->data = SvREFCNT_inc (data); 1231 req->sv2 = SvREFCNT_inc (data);
728 req->dataptr = (char *)svptr + dataoffset; 1232 req->ptr2 = (char *)svptr + dataoffset;
1233 req->stroffset = dataoffset;
729 1234
730 if (!SvREADONLY (data)) 1235 if (!SvREADONLY (data))
731 { 1236 {
732 SvREADONLY_on (data); 1237 SvREADONLY_on (data);
733 req->data2ptr = (void *)data; 1238 req->flags |= FLAG_SV2_RO_OFF;
734 } 1239 }
735 1240
736 send_req (req); 1241 REQ_SEND;
737 } 1242 }
738} 1243}
739 1244
740void 1245void
741aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1246aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
742 SV * out_fh 1247 ALIAS:
743 SV * in_fh 1248 aio_readlink = EIO_READLINK
744 UV in_offset 1249 aio_realpath = EIO_REALPATH
745 UV length
746 SV * callback
747 PROTOTYPE: $$$$;$
748 CODE: 1250 PPCODE:
749{ 1251{
1252 dREQ;
1253
1254 req->type = ix;
1255 req_set_path1 (req, pathname);
1256
1257 REQ_SEND;
1258}
1259
1260void
1261aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1262 PPCODE:
1263{
1264 int ifd = s_fileno_croak (in_fh , 0);
1265 int ofd = s_fileno_croak (out_fh, 1);
750 dREQ; 1266 dREQ;
751 1267
752 req->type = REQ_SENDFILE; 1268 req->type = EIO_SENDFILE;
753 req->fh = newSVsv (out_fh); 1269 req->sv1 = newSVsv (out_fh);
754 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1270 req->int1 = ofd;
755 req->fh2 = newSVsv (in_fh); 1271 req->sv2 = newSVsv (in_fh);
756 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1272 req->int2 = ifd;
757 req->offset = in_offset; 1273 req->offs = in_offset;
758 req->length = length; 1274 req->size = length;
759 1275
760 send_req (req); 1276 REQ_SEND;
761} 1277}
762 1278
763void 1279void
764aio_readahead(fh,offset,length,callback=&PL_sv_undef) 1280aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
765 SV * fh
766 UV offset
767 IV length
768 SV * callback
769 PROTOTYPE: $$$;$
770 CODE: 1281 PPCODE:
771{ 1282{
1283 int fd = s_fileno_croak (fh, 0);
772 dREQ; 1284 dREQ;
773 1285
774 req->type = REQ_READAHEAD; 1286 req->type = EIO_READAHEAD;
775 req->fh = newSVsv (fh); 1287 req->sv1 = newSVsv (fh);
776 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1288 req->int1 = fd;
777 req->offset = offset; 1289 req->offs = offset;
778 req->length = length; 1290 req->size = length;
779 1291
780 send_req (req); 1292 REQ_SEND;
781} 1293}
782 1294
783void 1295void
784aio_stat(fh_or_path,callback=&PL_sv_undef) 1296aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
785 SV * fh_or_path
786 SV * callback
787 ALIAS: 1297 ALIAS:
788 aio_stat = REQ_STAT 1298 aio_stat = EIO_STAT
789 aio_lstat = REQ_LSTAT 1299 aio_lstat = EIO_LSTAT
1300 aio_statvfs = EIO_STATVFS
1301 PPCODE:
1302{
1303 dREQ;
1304
1305 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1306
1307 REQ_SEND;
1308}
1309
1310UV
1311major (UV dev)
1312 ALIAS:
1313 minor = 1
790 CODE: 1314 CODE:
1315 RETVAL = ix ? major (dev) : minor (dev);
1316 OUTPUT:
1317 RETVAL
1318
1319UV
1320makedev (UV maj, UV min)
1321 CODE:
1322 RETVAL = makedev (maj, min);
1323 OUTPUT:
1324 RETVAL
1325
1326void
1327aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1328 PPCODE:
791{ 1329{
792 dREQ; 1330 dREQ;
793 1331
794 New (0, req->statdata, 1, Stat_t); 1332 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
795 if (!req->statdata) 1333 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
796 { 1334 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
797 free_req (req);
798 croak ("out of memory during aio_req->statdata allocation");
799 }
800 1335
801 if (SvPOK (fh_or_path)) 1336 REQ_SEND;
802 {
803 req->type = ix;
804 req->data = newSVsv (fh_or_path);
805 req->dataptr = SvPVbyte_nolen (req->data);
806 }
807 else
808 {
809 req->type = REQ_FSTAT;
810 req->fh = newSVsv (fh_or_path);
811 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
812 }
813
814 send_req (req);
815} 1337}
816 1338
817void 1339void
1340aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1341 PPCODE:
1342{
1343 dREQ;
1344
1345 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1346 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1347
1348 REQ_SEND;
1349}
1350
1351void
1352aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1353 PPCODE:
1354{
1355 dREQ;
1356
1357 req->int2 = mode;
1358 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1359
1360 REQ_SEND;
1361}
1362
1363void
1364aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1365 PPCODE:
1366{
1367 dREQ;
1368
1369 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1370 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1371 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1372
1373 REQ_SEND;
1374}
1375
1376void
1377aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1378 PPCODE:
1379{
1380 dREQ;
1381
1382 req->type = EIO_READDIR;
1383 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1384
1385 if (flags & EIO_READDIR_DENTS)
1386 req->int1 |= EIO_READDIR_CUSTOM2;
1387
1388 req_set_path1 (req, pathname);
1389
1390 REQ_SEND;
1391}
1392
1393void
1394aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1395 PPCODE:
1396{
1397 dREQ;
1398
1399 req->type = EIO_MKDIR;
1400 req->int2 = mode;
1401 req_set_path1 (req, pathname);
1402
1403 REQ_SEND;
1404}
1405
1406void
818aio_unlink(pathname,callback=&PL_sv_undef) 1407aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
819 SV * pathname
820 SV * callback
821 ALIAS: 1408 ALIAS:
822 aio_unlink = REQ_UNLINK 1409 aio_unlink = EIO_UNLINK
823 aio_rmdir = REQ_RMDIR 1410 aio_rmdir = EIO_RMDIR
1411 aio_readdir = EIO_READDIR
824 CODE: 1412 PPCODE:
825{ 1413{
826 dREQ; 1414 dREQ;
827 1415
828 req->type = ix; 1416 req->type = ix;
829 req->data = newSVsv (pathname); 1417 req_set_path1 (req, pathname);
830 req->dataptr = SvPVbyte_nolen (req->data);
831
832 send_req (req);
833}
834 1418
1419 REQ_SEND;
1420}
1421
835void 1422void
836aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1423aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
837 SV * oldpath 1424 ALIAS:
838 SV * newpath 1425 aio_link = EIO_LINK
839 SV * callback 1426 aio_symlink = EIO_SYMLINK
1427 aio_rename = EIO_RENAME
840 CODE: 1428 PPCODE:
841{ 1429{
1430 eio_wd wd2 = 0;
842 dREQ; 1431 dREQ;
843 1432
844 req->type = REQ_SYMLINK; 1433 req->type = ix;
845 req->fh = newSVsv (oldpath); 1434 req_set_path1 (req, oldpath);
846 req->data2ptr = SvPVbyte_nolen (req->fh); 1435 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
847 req->data = newSVsv (newpath); 1436 req->int3 = (long)wd2;
848 req->dataptr = SvPVbyte_nolen (req->data);
849 1437
850 send_req (req); 1438 REQ_SEND;
851} 1439}
852 1440
853void 1441void
854flush() 1442aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
855 PROTOTYPE: 1443 PPCODE:
1444{
1445 dREQ;
1446
1447 req->type = EIO_MKNOD;
1448 req->int2 = (mode_t)mode;
1449 req->offs = dev;
1450 req_set_path1 (req, pathname);
1451
1452 REQ_SEND;
1453}
1454
1455void
1456aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1457 ALIAS:
1458 aio_mtouch = EIO_MTOUCH
1459 aio_msync = EIO_MSYNC
1460 PPCODE:
1461{
1462 STRLEN svlen;
1463 char *svptr = SvPVbyte (data, svlen);
1464 UV len = SvUV (length);
1465
1466 if (offset < 0)
1467 offset += svlen;
1468
1469 if (offset < 0 || offset > svlen)
1470 croak ("offset outside of scalar");
1471
1472 if (!SvOK (length) || len + offset > svlen)
1473 len = svlen - offset;
1474
1475 {
1476 dREQ;
1477
1478 req->type = ix;
1479 req->sv2 = SvREFCNT_inc (data);
1480 req->ptr2 = (char *)svptr + offset;
1481 req->size = len;
1482 req->int1 = flags;
1483
1484 REQ_SEND;
1485 }
1486}
1487
1488void
1489aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1490 PPCODE:
1491{
1492 STRLEN svlen;
1493 char *svptr = SvPVbyte (data, svlen);
1494 UV len = SvUV (length);
1495
1496 if (offset < 0)
1497 offset += svlen;
1498
1499 if (offset < 0 || offset > svlen)
1500 croak ("offset outside of scalar");
1501
1502 if (!SvOK (length) || len + offset > svlen)
1503 len = svlen - offset;
1504
1505 {
1506 dREQ;
1507
1508 req->type = EIO_MLOCK;
1509 req->sv2 = SvREFCNT_inc (data);
1510 req->ptr2 = (char *)svptr + offset;
1511 req->size = len;
1512
1513 REQ_SEND;
1514 }
1515}
1516
1517void
1518aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1519 PPCODE:
1520{
1521 dREQ;
1522
1523 req->type = EIO_MLOCKALL;
1524 req->int1 = flags;
1525
1526 REQ_SEND;
1527}
1528
1529void
1530aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1531 PPCODE:
1532{
1533 int fd = s_fileno_croak (fh, 0);
1534 dREQ;
1535
1536 req->type = EIO_CUSTOM;
1537 req->sv1 = newSVsv (fh);
1538 req->int1 = fd;
1539
1540 req->feed = fiemap;
1541#if HAVE_FIEMAP
1542 /* keep our fingers crossed that the next two types are 64 bit */
1543 req->offs = start;
1544 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1545 req->int2 = flags;
1546 req->int3 = SvOK (count) ? SvIV (count) : -1;
1547#endif
1548
1549 REQ_SEND;
1550}
1551
1552void
1553aio_busy (double delay, SV *callback=&PL_sv_undef)
1554 PPCODE:
1555{
1556 dREQ;
1557
1558 req->type = EIO_BUSY;
1559 req->nv1 = delay < 0. ? 0. : delay;
1560
1561 REQ_SEND;
1562}
1563
1564void
1565aio_group (SV *callback=&PL_sv_undef)
1566 PPCODE:
1567{
1568 dREQ;
1569
1570 req->type = EIO_GROUP;
1571
1572 req_submit (req);
1573 XPUSHs (req_sv (req, aio_grp_stash));
1574}
1575
1576void
1577aio_nop (SV *callback=&PL_sv_undef)
1578 ALIAS:
1579 aio_nop = EIO_NOP
1580 aio_sync = EIO_SYNC
1581 PPCODE:
1582{
1583 dREQ;
1584
1585 req->type = ix;
1586
1587 REQ_SEND;
1588}
1589
1590int
1591aioreq_pri (int pri = 0)
856 CODE: 1592 CODE:
1593 RETVAL = next_pri;
1594 if (items > 0)
1595 {
1596 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1597 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1598 next_pri = pri;
1599 }
1600 OUTPUT:
1601 RETVAL
1602
1603void
1604aioreq_nice (int nice = 0)
1605 CODE:
1606 nice = next_pri - nice;
1607 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1608 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1609 next_pri = nice;
1610
1611void
1612flush ()
1613 CODE:
857 while (nreqs) 1614 while (eio_nreqs ())
858 { 1615 {
859 poll_wait (); 1616 poll_wait ();
860 poll_cb (); 1617 poll_cb ();
861 } 1618 }
862 1619
863void 1620int
864poll() 1621poll ()
865 PROTOTYPE:
866 CODE: 1622 CODE:
867 if (nreqs)
868 {
869 poll_wait (); 1623 poll_wait ();
870 poll_cb (); 1624 RETVAL = poll_cb ();
871 }
872
873int
874poll_fileno()
875 PROTOTYPE:
876 CODE:
877 RETVAL = respipe [0];
878 OUTPUT: 1625 OUTPUT:
879 RETVAL 1626 RETVAL
880 1627
881int 1628int
1629poll_fileno ()
1630 CODE:
1631 RETVAL = s_epipe_fd (&respipe);
1632 OUTPUT:
1633 RETVAL
1634
1635int
882poll_cb(...) 1636poll_cb (...)
883 PROTOTYPE: 1637 PROTOTYPE:
884 CODE: 1638 CODE:
885 RETVAL = poll_cb (); 1639 RETVAL = poll_cb ();
886 OUTPUT: 1640 OUTPUT:
887 RETVAL 1641 RETVAL
888 1642
889void 1643void
890poll_wait() 1644poll_wait ()
891 PROTOTYPE:
892 CODE: 1645 CODE:
893 if (nreqs)
894 poll_wait (); 1646 poll_wait ();
895 1647
896int 1648int
897nreqs() 1649nreqs ()
898 PROTOTYPE:
899 CODE: 1650 CODE:
900 RETVAL = nreqs; 1651 RETVAL = eio_nreqs ();
901 OUTPUT: 1652 OUTPUT:
902 RETVAL 1653 RETVAL
903 1654
1655int
1656nready ()
1657 CODE:
1658 RETVAL = eio_nready ();
1659 OUTPUT:
1660 RETVAL
1661
1662int
1663npending ()
1664 CODE:
1665 RETVAL = eio_npending ();
1666 OUTPUT:
1667 RETVAL
1668
1669int
1670nthreads ()
1671 CODE:
1672 RETVAL = eio_nthreads ();
1673 OUTPUT:
1674 RETVAL
1675
1676int
1677fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1678 CODE:
1679 RETVAL = posix_fadvise (fh, offset, length, advice);
1680 OUTPUT:
1681 RETVAL
1682
1683IV
1684sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1685 CODE:
1686 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1687 OUTPUT:
1688 RETVAL
1689
1690void
1691mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1692 PPCODE:
1693 sv_unmagic (scalar, MMAP_MAGIC);
1694{
1695 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1696 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1697 if (addr == (void *)-1)
1698 XSRETURN_NO;
1699
1700 sv_force_normal (scalar);
1701
1702 /* we store the length in mg_obj, as namlen is I32 :/ */
1703 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1704 ->mg_obj = (SV *)length;
1705
1706 SvUPGRADE (scalar, SVt_PV); /* nop... */
1707
1708 if (!(prot & PROT_WRITE))
1709 SvREADONLY_on (scalar);
1710
1711 if (SvLEN (scalar))
1712 Safefree (SvPVX (scalar));
1713
1714 SvPVX (scalar) = (char *)addr;
1715 SvCUR_set (scalar, length);
1716 SvLEN_set (scalar, 0);
1717 SvPOK_only (scalar);
1718
1719 XSRETURN_YES;
1720}
1721
1722void
1723munmap (SV *scalar)
1724 CODE:
1725 sv_unmagic (scalar, MMAP_MAGIC);
1726
1727int
1728madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1729 ALIAS:
1730 mprotect = 1
1731 CODE:
1732{
1733 STRLEN svlen;
1734 void *addr = SvPVbyte (scalar, svlen);
1735 size_t len = SvUV (length);
1736
1737 if (offset < 0)
1738 offset += svlen;
1739
1740 if (offset < 0 || offset > svlen)
1741 croak ("offset outside of scalar");
1742
1743 if (!SvOK (length) || len + offset > svlen)
1744 len = svlen - offset;
1745
1746 addr = (void *)(((intptr_t)addr) + offset);
1747 eio_page_align (&addr, &len);
1748
1749 switch (ix)
1750 {
1751 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1752 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1753 }
1754}
1755 OUTPUT:
1756 RETVAL
1757
1758int
1759munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1760 CODE:
1761{
1762 STRLEN svlen;
1763 void *addr = SvPVbyte (scalar, svlen);
1764 size_t len = SvUV (length);
1765
1766 if (offset < 0)
1767 offset += svlen;
1768
1769 if (offset < 0 || offset > svlen)
1770 croak ("offset outside of scalar");
1771
1772 if (!SvOK (length) || len + offset > svlen)
1773 len = svlen - offset;
1774
1775 addr = (void *)(((intptr_t)addr) + offset);
1776 eio_page_align (&addr, &len);
1777#if _POSIX_MEMLOCK_RANGE
1778 RETVAL = munlock (addr, len);
1779#else
1780 RETVAL = EIO_ENOSYS ();
1781#endif
1782}
1783 OUTPUT:
1784 RETVAL
1785
1786int
1787munlockall ()
1788 CODE:
1789#if _POSIX_MEMLOCK
1790 munlockall ();
1791#else
1792 RETVAL = EIO_ENOSYS ();
1793#endif
1794 OUTPUT:
1795 RETVAL
1796
1797int
1798splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1799 CODE:
1800{
1801#if HAVE_LINUX_SPLICE
1802 loff_t off_in_, off_out_;
1803 RETVAL = splice (
1804 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1805 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1806 length, flags
1807 );
1808#else
1809 RETVAL = EIO_ENOSYS ();
1810#endif
1811}
1812 OUTPUT:
1813 RETVAL
1814
1815int
1816tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1817 CODE:
1818#if HAVE_LINUX_SPLICE
1819 RETVAL = tee (rfh, wfh, length, flags);
1820#else
1821 RETVAL = EIO_ENOSYS ();
1822#endif
1823 OUTPUT:
1824 RETVAL
1825
1826void _on_next_submit (SV *cb)
1827 CODE:
1828 SvREFCNT_dec (on_next_submit);
1829 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1830
1831PROTOTYPES: DISABLE
1832
1833MODULE = IO::AIO PACKAGE = IO::AIO::WD
1834
1835BOOT:
1836{
1837 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1838 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1839}
1840
1841void
1842DESTROY (SV *self)
1843 CODE:
1844{
1845 aio_wd wd = SvAIO_WD (self);
1846#if HAVE_AT
1847 {
1848 SV *callback = &PL_sv_undef;
1849 dREQ; /* clobbers next_pri :/ */
1850 next_pri = req->pri; /* restore next_pri */
1851 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1852 req->type = EIO_WD_CLOSE;
1853 req->wd = wd;
1854 REQ_SEND;
1855 }
1856#else
1857 eio_wd_close_sync (wd);
1858#endif
1859}
1860
1861MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1862
1863void
1864cancel (aio_req_ornot req)
1865 CODE:
1866 eio_cancel (req);
1867
1868void
1869cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1870 PPCODE:
1871{
1872 if (GIMME_V != G_VOID)
1873 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1874
1875 if (items > 1)
1876 {
1877 SV *cb_cv =get_cb (callback);
1878
1879 SvREFCNT_dec (req->callback);
1880 req->callback = SvREFCNT_inc (cb_cv);
1881 }
1882}
1883
1884MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1885
1886void
1887add (aio_req grp, ...)
1888 PPCODE:
1889{
1890 int i;
1891
1892 if (grp->int1 == 2)
1893 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1894
1895 for (i = 1; i < items; ++i )
1896 {
1897 aio_req req;
1898
1899 if (GIMME_V != G_VOID)
1900 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1901
1902 req = SvAIO_REQ (ST (i));
1903
1904 if (req)
1905 eio_grp_add (grp, req);
1906 }
1907}
1908
1909void
1910cancel_subs (aio_req_ornot req)
1911 CODE:
1912 req_cancel_subs (req);
1913
1914void
1915result (aio_req grp, ...)
1916 CODE:
1917{
1918 int i;
1919 AV *av;
1920
1921 grp->errorno = errno;
1922
1923 av = newAV ();
1924 av_extend (av, items - 1);
1925
1926 for (i = 1; i < items; ++i )
1927 av_push (av, newSVsv (ST (i)));
1928
1929 SvREFCNT_dec (grp->sv1);
1930 grp->sv1 = (SV *)av;
1931}
1932
1933void
1934errno (aio_req grp, int errorno = errno)
1935 CODE:
1936 grp->errorno = errorno;
1937
1938void
1939limit (aio_req grp, int limit)
1940 CODE:
1941 eio_grp_limit (grp, limit);
1942
1943void
1944feed (aio_req grp, SV *callback=&PL_sv_undef)
1945 CODE:
1946{
1947 SvREFCNT_dec (grp->sv2);
1948 grp->sv2 = newSVsv (callback);
1949 grp->feed = aio_grp_feed;
1950
1951 if (grp->int2 <= 0)
1952 grp->int2 = 2;
1953
1954 eio_grp_limit (grp, grp->int2);
1955}
1956

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