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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.31 by root, Thu Aug 18 16:34:53 2005 UTC vs.
Revision 1.212 by root, Sun Apr 8 00:11:50 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/types.h>
28# include <linux/fiemap.h>
29# define HAVE_FIEMAP 1
30# endif
31#endif
23 32
24#if __ia64 33/* perl namespace pollution */
25# 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
26#else 79#else
27# 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 */
28#endif 142# endif
143#endif
29 144
30enum { 145/* defines all sorts of constants to 0 unless they are already defined */
31 REQ_QUIT, 146#include "def0.h"
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};
39 147
40typedef struct aio_cb { 148#ifndef makedev
41 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
42 157
43 int type; 158#ifndef PAGESIZE
159# define PAGESIZE sysconf (_SC_PAGESIZE)
160#endif
44 161
45 int fd; 162/*****************************************************************************/
46 off_t offset;
47 size_t length;
48 ssize_t result;
49 mode_t mode; /* open */
50 int errorno;
51 SV *data, *callback, *fh;
52 void *dataptr, *data2ptr;
53 STRLEN dataoffset;
54
55 Stat_t *statdata;
56} aio_cb;
57
58typedef aio_cb *aio_req;
59
60static int started, wanted;
61static volatile int nreqs;
62static int max_outstanding = 1<<30;
63static int respipe [2];
64
65static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
66static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
68
69static volatile aio_req reqs, reqe; /* queue start, queue end */
70static volatile aio_req ress, rese; /* queue start, queue end */
71
72static void free_req (aio_req req)
73{
74 if (req->data)
75 SvREFCNT_dec (req->data);
76
77 if (req->fh)
78 SvREFCNT_dec (req->fh);
79
80 if (req->statdata)
81 Safefree (req->statdata);
82
83 if (req->callback)
84 SvREFCNT_dec (req->callback);
85
86 Safefree (req);
87}
88 163
89static void 164static void
90poll_wait () 165fiemap (eio_req *req)
91{ 166{
92 if (nreqs && !ress) 167 req->result = -1;
93 {
94 fd_set rfd;
95 FD_ZERO(&rfd);
96 FD_SET(respipe [0], &rfd);
97 168
98 select (respipe [0] + 1, &rfd, 0, 0, 0); 169#if HAVE_FIEMAP
99 }
100}
101
102static int
103poll_cb ()
104{
105 dSP;
106 int count = 0; 170 int count = req->int3;
107 int do_croak = 0; 171
108 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 */
109 177
110 for (;;) 178 for (;;)
111 { 179 {
112 pthread_mutex_lock (&reslock); 180 struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
113 req = ress; 181 errno = ENOMEM;
114
115 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))
116 { 356 {
117 ress = req->next; 357 sv_result = sv_result_cache; sv_result_cache = 0;
118 358 SvIV_set (sv_result, req->result);
119 if (!ress) 359 SvIOK_only (sv_result);
120 {
121 /* read any signals sent by the worker threads */
122 char buf [32];
123 while (read (respipe [0], buf, 32) == 32)
124 ;
125
126 rese = 0;
127 }
128 }
129
130 pthread_mutex_unlock (&reslock);
131
132 if (!req)
133 break;
134
135 nreqs--;
136
137 if (req->type == REQ_QUIT)
138 started--;
139 else
140 {
141 int errorno = errno;
142 errno = req->errorno;
143
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 while (started < wanted && nreqs >= started)
227 start_thread ();
228
229 nreqs++;
230
231 pthread_mutex_lock (&reqlock);
232
233 req->next = 0;
234
235 if (reqe)
236 {
237 reqe->next = req;
238 reqe = req;
239 }
240 else
241 reqe = reqs = req;
242
243 pthread_cond_signal (&reqwait);
244 pthread_mutex_unlock (&reqlock);
245
246 if (nreqs > max_outstanding)
247 for (;;)
248 {
249 poll_cb ();
250
251 if (nreqs <= max_outstanding)
252 break;
253
254 poll_wait ();
255 }
256}
257
258static void
259end_thread (void)
260{
261 aio_req req;
262 Newz (0, req, 1, aio_cb);
263 req->type = REQ_QUIT;
264
265 send_req (req);
266}
267
268static void min_parallel (int nthreads)
269{
270 if (wanted < nthreads)
271 wanted = nthreads;
272}
273
274static void max_parallel (int nthreads)
275{
276 int cur = started;
277
278 if (wanted > nthreads)
279 wanted = nthreads;
280
281 while (cur > wanted)
282 {
283 end_thread ();
284 cur--;
285 }
286
287 while (started > wanted)
288 {
289 poll_wait ();
290 poll_cb ();
291 }
292}
293
294static void create_pipe ()
295{
296 if (pipe (respipe))
297 croak ("unable to initialize result pipe");
298
299 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
300 croak ("cannot set result pipe to nonblocking mode");
301
302 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
303 croak ("cannot set result pipe to nonblocking mode");
304}
305
306static void atfork_prepare (void)
307{
308 pthread_mutex_lock (&reqlock);
309 pthread_mutex_lock (&reslock);
310}
311
312static void atfork_parent (void)
313{
314 pthread_mutex_unlock (&reslock);
315 pthread_mutex_unlock (&reqlock);
316}
317
318static void atfork_child (void)
319{
320 aio_req prv;
321
322 started = 0;
323
324 while (reqs)
325 {
326 prv = reqs;
327 reqs = prv->next;
328 free_req (prv);
329 }
330
331 reqs = reqe = 0;
332
333 while (ress)
334 {
335 prv = ress;
336 ress = prv->next;
337 free_req (prv);
338 }
339
340 ress = rese = 0;
341
342 close (respipe [0]);
343 close (respipe [1]);
344 create_pipe ();
345
346 atfork_parent ();
347}
348
349/*****************************************************************************/
350/* work around various missing functions */
351
352#if !HAVE_PREADWRITE
353# define pread aio_pread
354# define pwrite aio_pwrite
355
356/*
357 * make our pread/pwrite safe against themselves, but not against
358 * normal read/write by using a mutex. slows down execution a lot,
359 * but that's your problem, not mine.
360 */
361static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
362
363static ssize_t
364pread (int fd, void *buf, size_t count, off_t offset)
365{
366 ssize_t res;
367 off_t ooffset;
368
369 pthread_mutex_lock (&iolock);
370 ooffset = lseek (fd, 0, SEEK_CUR);
371 lseek (fd, offset, SEEK_SET);
372 res = read (fd, buf, count);
373 lseek (fd, ooffset, SEEK_SET);
374 pthread_mutex_unlock (&iolock);
375
376 return res;
377}
378
379static ssize_t
380pwrite (int fd, void *buf, size_t count, off_t offset)
381{
382 ssize_t res;
383 off_t ooffset;
384
385 pthread_mutex_lock (&iolock);
386 ooffset = lseek (fd, 0, SEEK_CUR);
387 lseek (fd, offset, SEEK_SET);
388 res = write (fd, buf, count);
389 lseek (fd, offset, SEEK_SET);
390 pthread_mutex_unlock (&iolock);
391
392 return res;
393}
394#endif
395
396#if !HAVE_FDATASYNC
397# define fdatasync fsync
398#endif
399
400#if !HAVE_READAHEAD
401# define readahead aio_readahead
402
403static char readahead_buf[4096];
404
405static ssize_t
406readahead (int fd, off_t offset, size_t count)
407{
408 while (count > 0)
409 {
410 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
411
412 pread (fd, readahead_buf, len, offset);
413 offset += len;
414 count -= len;
415 }
416
417 errno = 0;
418}
419#endif
420
421/*****************************************************************************/
422
423static void *
424aio_proc (void *thr_arg)
425{
426 aio_req req;
427 int type;
428
429 do
430 {
431 pthread_mutex_lock (&reqlock);
432
433 for (;;)
434 {
435 req = reqs;
436
437 if (reqs)
438 {
439 reqs = reqs->next;
440 if (!reqs) reqe = 0;
441 }
442
443 if (req)
444 break;
445
446 pthread_cond_wait (&reqwait, &reqlock);
447 }
448
449 pthread_mutex_unlock (&reqlock);
450
451 errno = 0; /* strictly unnecessary */
452
453 type = req->type;
454
455 switch (type)
456 {
457 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
458 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
459
460 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
461
462 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
463 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
464 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
465
466 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
467 case REQ_CLOSE: req->result = close (req->fd); break;
468 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
469 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
470 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
471
472 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
473 case REQ_FSYNC: req->result = fsync (req->fd); break;
474
475 case REQ_QUIT:
476 break;
477
478 default:
479 req->result = ENOSYS;
480 break;
481 }
482
483 req->errorno = errno;
484
485 pthread_mutex_lock (&reslock);
486
487 req->next = 0;
488
489 if (rese)
490 {
491 rese->next = req;
492 rese = req;
493 } 360 }
494 else 361 else
495 { 362 {
496 rese = ress = req; 363 sv_result = newSViv (req->result);
497 364 SvREADONLY_on (sv_result);
498 /* write a dummy byte to the pipe so fh becomes ready */
499 write (respipe [1], &respipe, 1);
500 } 365 }
501 366
502 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;
503 } 612 }
504 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) (errno = ENOSYS, -1)
704# define munmap(addr,length) (errno = ENOSYS, -1)
705#endif
706
707#if !_POSIX_MEMORY_PROTECTION
708# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
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);
505 735
506 return 0; 736 return 0;
507} 737}
508 738
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
509#define dREQ \ 772#define dREQ \
510 aio_req req; \ 773 aio_req req = dreq (callback); \
774
775#define REQ_SEND \
776 PUTBACK; \
777 req_submit (req); \
778 SPAGAIN; \
511 \ 779 \
512 if (SvOK (callback) && !SvROK (callback)) \ 780 if (GIMME_V != G_VOID) \
513 croak ("clalback must be undef or of reference type"); \ 781 XPUSHs (req_sv (req, aio_req_stash));
514 \ 782
515 Newz (0, req, 1, aio_cb); \ 783ecb_inline void
516 if (!req) \ 784req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
517 croak ("out of memory during aio_req allocation"); \ 785{
518 \ 786 if (expect_false (SvROK (path)))
519 req->callback = newSVsv (callback); 787 {
520 788 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
521MODULE = IO::AIO PACKAGE = IO::AIO 849MODULE = IO::AIO PACKAGE = IO::AIO
522 850
523PROTOTYPES: ENABLE 851PROTOTYPES: ENABLE
524 852
525BOOT: 853BOOT:
526{ 854{
527 create_pipe (); 855 static const struct {
528 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 856 const char *name;
529} 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 },
530 862
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_eio (SEEK_SET)
962 const_eio (SEEK_CUR)
963 const_eio (SEEK_END)
964
965 const_eio (MCL_FUTURE)
966 const_eio (MCL_CURRENT)
967
968 const_eio (MS_ASYNC)
969 const_eio (MS_INVALIDATE)
970 const_eio (MS_SYNC)
971
972 const_eio (MT_MODIFY)
973
974 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
975 const_eio (SYNC_FILE_RANGE_WRITE)
976 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
977
978 const_eio (FALLOC_FL_KEEP_SIZE)
979
980 const_eio (READDIR_DENTS)
981 const_eio (READDIR_DIRS_FIRST)
982 const_eio (READDIR_STAT_ORDER)
983 const_eio (READDIR_FOUND_UNKNOWN)
984
985 const_eio (DT_UNKNOWN)
986 const_eio (DT_FIFO)
987 const_eio (DT_CHR)
988 const_eio (DT_DIR)
989 const_eio (DT_BLK)
990 const_eio (DT_REG)
991 const_eio (DT_LNK)
992 const_eio (DT_SOCK)
993 const_eio (DT_WHT)
994 };
995
996 aio_stash = gv_stashpv ("IO::AIO" , 1);
997 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
998 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
999 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1000
1001 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1002 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1003
1004 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1005
1006 reinit ();
1007}
1008
531void 1009void
532min_parallel(nthreads) 1010reinit ()
533 int nthreads 1011 PROTOTYPE:
1012
1013void
1014max_poll_reqs (unsigned int nreqs)
534 PROTOTYPE: $ 1015 PROTOTYPE: $
1016 CODE:
1017 eio_set_max_poll_reqs (nreqs);
535 1018
536void 1019void
537max_parallel(nthreads) 1020max_poll_time (double nseconds)
538 int nthreads
539 PROTOTYPE: $ 1021 PROTOTYPE: $
540
541int
542max_outstanding(nreqs)
543 int nreqs
544 PROTOTYPE: $
545 CODE: 1022 CODE:
546 RETVAL = max_outstanding; 1023 eio_set_max_poll_time (nseconds);
1024
1025void
1026min_parallel (unsigned int nthreads)
1027 PROTOTYPE: $
1028 CODE:
1029 eio_set_min_parallel (nthreads);
1030
1031void
1032max_parallel (unsigned int nthreads)
1033 PROTOTYPE: $
1034 CODE:
1035 eio_set_max_parallel (nthreads);
1036
1037void
1038max_idle (unsigned int nthreads)
1039 PROTOTYPE: $
1040 CODE:
1041 eio_set_max_idle (nthreads);
1042
1043void
1044idle_timeout (unsigned int seconds)
1045 PROTOTYPE: $
1046 CODE:
1047 eio_set_idle_timeout (seconds);
1048
1049void
1050max_outstanding (unsigned int maxreqs)
1051 PROTOTYPE: $
1052 CODE:
547 max_outstanding = nreqs; 1053 max_outstanding = maxreqs;
548 1054
549void 1055void
550aio_open(pathname,flags,mode,callback=&PL_sv_undef) 1056aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
551 SV * pathname
552 int flags
553 int mode
554 SV * callback
555 PROTOTYPE: $$$;$
556 CODE: 1057 PPCODE:
557{ 1058{
558 dREQ; 1059 dREQ;
559 1060
1061 req->type = EIO_WD_OPEN;
1062 req_set_path1 (req, pathname);
1063
1064 REQ_SEND;
1065}
1066
1067void
1068aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1069 PPCODE:
1070{
1071 dREQ;
1072
560 req->type = REQ_OPEN; 1073 req->type = EIO_OPEN;
561 req->data = newSVsv (pathname); 1074 req_set_path1 (req, pathname);
562 req->dataptr = SvPVbyte_nolen (req->data);
563 req->fd = flags; 1075 req->int1 = flags;
564 req->mode = mode; 1076 req->int2 = mode;
565 1077
566 send_req (req); 1078 REQ_SEND;
567} 1079}
568 1080
569void 1081void
570aio_close(fh,callback=&PL_sv_undef) 1082aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
571 SV * fh
572 SV * callback
573 PROTOTYPE: $;$
574 ALIAS: 1083 ALIAS:
575 aio_close = REQ_CLOSE
576 aio_fsync = REQ_FSYNC 1084 aio_fsync = EIO_FSYNC
577 aio_fdatasync = REQ_FDATASYNC 1085 aio_fdatasync = EIO_FDATASYNC
1086 aio_syncfs = EIO_SYNCFS
578 CODE: 1087 PPCODE:
579{ 1088{
1089 int fd = s_fileno_croak (fh, 0);
580 dREQ; 1090 dREQ;
581 1091
582 req->type = ix; 1092 req->type = ix;
583 req->fh = newSVsv (fh); 1093 req->sv1 = newSVsv (fh);
584 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1094 req->int1 = fd;
585 1095
586 send_req (req); 1096 REQ_SEND;
587} 1097}
588 1098
589void 1099void
1100aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1101 PPCODE:
1102{
1103 int fd = s_fileno_croak (fh, 0);
1104 dREQ;
1105
1106 req->type = EIO_SYNC_FILE_RANGE;
1107 req->sv1 = newSVsv (fh);
1108 req->int1 = fd;
1109 req->offs = offset;
1110 req->size = nbytes;
1111 req->int2 = flags;
1112
1113 REQ_SEND;
1114}
1115
1116void
1117aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1118 PPCODE:
1119{
1120 int fd = s_fileno_croak (fh, 0);
1121 dREQ;
1122
1123 req->type = EIO_FALLOCATE;
1124 req->sv1 = newSVsv (fh);
1125 req->int1 = fd;
1126 req->int2 = mode;
1127 req->offs = offset;
1128 req->size = len;
1129
1130 REQ_SEND;
1131}
1132
1133void
1134aio_close (SV *fh, SV *callback=&PL_sv_undef)
1135 PPCODE:
1136{
1137 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1138 int fd = s_fileno_croak (fh, 0);
1139 dREQ;
1140
1141 if (expect_false (close_fd < 0))
1142 {
1143 int pipefd [2];
1144
1145 if (
1146#ifdef _WIN32
1147 _pipe (pipefd, 1, _O_BINARY) < 0
1148#else
1149 pipe (pipefd) < 0
1150 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1151#endif
1152 || close (pipefd [1]) < 0
1153 )
1154 abort (); /*D*/
1155
1156 close_fd = pipefd [0];
1157 }
1158
1159 req->type = EIO_DUP2;
1160 req->int1 = close_fd;
1161 req->sv2 = newSVsv (fh);
1162 req->int2 = fd;
1163
1164 REQ_SEND;
1165}
1166
1167void
1168aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1169 PPCODE:
1170{
1171 int fd = s_fileno_croak (fh, 0);
1172 dREQ;
1173
1174 req->type = EIO_SEEK;
1175 req->sv1 = newSVsv (fh);
1176 req->int1 = fd;
1177 req->offs = SvVAL64 (offset);
1178 req->int2 = whence;
1179
1180 REQ_SEND;
1181}
1182
1183void
590aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1184aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
591 SV * fh
592 UV offset
593 IV length
594 SV * data
595 IV dataoffset
596 SV * callback
597 ALIAS: 1185 ALIAS:
598 aio_read = REQ_READ 1186 aio_read = EIO_READ
599 aio_write = REQ_WRITE 1187 aio_write = EIO_WRITE
600 PROTOTYPE: $$$$$;$
601 CODE: 1188 PPCODE:
602{ 1189{
603 aio_req req;
604 STRLEN svlen; 1190 STRLEN svlen;
1191 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
605 char *svptr = SvPVbyte (data, svlen); 1192 char *svptr = SvPVbyte (data, svlen);
606 1193 UV len = SvUV (length);
607 SvUPGRADE (data, SVt_PV);
608 SvPOK_on (data);
609 1194
610 if (dataoffset < 0) 1195 if (dataoffset < 0)
611 dataoffset += svlen; 1196 dataoffset += svlen;
612 1197
613 if (dataoffset < 0 || dataoffset > svlen) 1198 if (dataoffset < 0 || dataoffset > svlen)
614 croak ("data offset outside of string"); 1199 croak ("dataoffset outside of data scalar");
615 1200
616 if (ix == REQ_WRITE) 1201 if (ix == EIO_WRITE)
617 { 1202 {
618 /* write: check length and adjust. */ 1203 /* write: check length and adjust. */
619 if (length < 0 || length + dataoffset > svlen) 1204 if (!SvOK (length) || len + dataoffset > svlen)
620 length = svlen - dataoffset; 1205 len = svlen - dataoffset;
621 } 1206 }
622 else 1207 else
623 { 1208 {
624 /* read: grow scalar as necessary */ 1209 /* read: check type and grow scalar as necessary */
1210 SvUPGRADE (data, SVt_PV);
625 svptr = SvGROW (data, length + dataoffset); 1211 svptr = SvGROW (data, len + dataoffset + 1);
626 } 1212 }
627
628 if (length < 0)
629 croak ("length must not be negative");
630 1213
631 { 1214 {
632 dREQ; 1215 dREQ;
633 1216
634 req->type = ix; 1217 req->type = ix;
635 req->fh = newSVsv (fh); 1218 req->sv1 = newSVsv (fh);
636 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1219 req->int1 = fd;
637 : IoOFP (sv_2io (fh))); 1220 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
638 req->offset = offset; 1221 req->size = len;
639 req->length = length;
640 req->data = SvREFCNT_inc (data); 1222 req->sv2 = SvREFCNT_inc (data);
641 req->dataptr = (char *)svptr + dataoffset; 1223 req->ptr2 = (char *)svptr + dataoffset;
1224 req->stroffset = dataoffset;
642 1225
643 if (!SvREADONLY (data)) 1226 if (!SvREADONLY (data))
644 { 1227 {
645 SvREADONLY_on (data); 1228 SvREADONLY_on (data);
646 req->data2ptr = (void *)data; 1229 req->flags |= FLAG_SV2_RO_OFF;
647 } 1230 }
648 1231
649 send_req (req); 1232 REQ_SEND;
650 } 1233 }
651} 1234}
652 1235
653void 1236void
654aio_readahead(fh,offset,length,callback=&PL_sv_undef) 1237aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
655 SV * fh 1238 ALIAS:
656 UV offset 1239 aio_readlink = EIO_READLINK
657 IV length 1240 aio_realpath = EIO_REALPATH
658 SV * callback
659 PROTOTYPE: $$$;$
660 CODE: 1241 PPCODE:
661{ 1242{
1243 dREQ;
1244
1245 req->type = ix;
1246 req_set_path1 (req, pathname);
1247
1248 REQ_SEND;
1249}
1250
1251void
1252aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1253 PPCODE:
1254{
1255 int ifd = s_fileno_croak (in_fh , 0);
1256 int ofd = s_fileno_croak (out_fh, 1);
662 dREQ; 1257 dREQ;
663 1258
1259 req->type = EIO_SENDFILE;
1260 req->sv1 = newSVsv (out_fh);
1261 req->int1 = ofd;
1262 req->sv2 = newSVsv (in_fh);
1263 req->int2 = ifd;
1264 req->offs = in_offset;
1265 req->size = length;
1266
1267 REQ_SEND;
1268}
1269
1270void
1271aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1272 PPCODE:
1273{
1274 int fd = s_fileno_croak (fh, 0);
1275 dREQ;
1276
664 req->type = REQ_READAHEAD; 1277 req->type = EIO_READAHEAD;
665 req->fh = newSVsv (fh); 1278 req->sv1 = newSVsv (fh);
666 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1279 req->int1 = fd;
667 req->offset = offset; 1280 req->offs = offset;
668 req->length = length; 1281 req->size = length;
669 1282
670 send_req (req); 1283 REQ_SEND;
671} 1284}
672 1285
673void 1286void
674aio_stat(fh_or_path,callback=&PL_sv_undef) 1287aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
675 SV * fh_or_path
676 SV * callback
677 ALIAS: 1288 ALIAS:
678 aio_stat = REQ_STAT 1289 aio_stat = EIO_STAT
679 aio_lstat = REQ_LSTAT 1290 aio_lstat = EIO_LSTAT
1291 aio_statvfs = EIO_STATVFS
1292 PPCODE:
1293{
1294 dREQ;
1295
1296 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1297
1298 REQ_SEND;
1299}
1300
1301UV
1302major (UV dev)
1303 ALIAS:
1304 minor = 1
680 CODE: 1305 CODE:
1306 RETVAL = ix ? major (dev) : minor (dev);
1307 OUTPUT:
1308 RETVAL
1309
1310UV
1311makedev (UV maj, UV min)
1312 CODE:
1313 RETVAL = makedev (maj, min);
1314 OUTPUT:
1315 RETVAL
1316
1317void
1318aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1319 PPCODE:
681{ 1320{
682 dREQ; 1321 dREQ;
683 1322
684 New (0, req->statdata, 1, Stat_t); 1323 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
685 if (!req->statdata) 1324 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
686 { 1325 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
687 free_req (req);
688 croak ("out of memory during aio_req->statdata allocation");
689 }
690 1326
691 if (SvPOK (fh_or_path)) 1327 REQ_SEND;
692 {
693 req->type = ix;
694 req->data = newSVsv (fh_or_path);
695 req->dataptr = SvPVbyte_nolen (req->data);
696 }
697 else
698 {
699 req->type = REQ_FSTAT;
700 req->fh = newSVsv (fh_or_path);
701 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
702 }
703
704 send_req (req);
705} 1328}
706 1329
707void 1330void
1331aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1332 PPCODE:
1333{
1334 dREQ;
1335
1336 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1337 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1338
1339 REQ_SEND;
1340}
1341
1342void
1343aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1344 PPCODE:
1345{
1346 dREQ;
1347
1348 req->int2 = mode;
1349 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1350
1351 REQ_SEND;
1352}
1353
1354void
1355aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1356 PPCODE:
1357{
1358 dREQ;
1359
1360 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1361 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1362 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1363
1364 REQ_SEND;
1365}
1366
1367void
1368aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1369 PPCODE:
1370{
1371 dREQ;
1372
1373 req->type = EIO_READDIR;
1374 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1375
1376 if (flags & EIO_READDIR_DENTS)
1377 req->int1 |= EIO_READDIR_CUSTOM2;
1378
1379 req_set_path1 (req, pathname);
1380
1381 REQ_SEND;
1382}
1383
1384void
1385aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1386 PPCODE:
1387{
1388 dREQ;
1389
1390 req->type = EIO_MKDIR;
1391 req->int2 = mode;
1392 req_set_path1 (req, pathname);
1393
1394 REQ_SEND;
1395}
1396
1397void
708aio_unlink(pathname,callback=&PL_sv_undef) 1398aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
709 SV * pathname
710 SV * callback
711 ALIAS: 1399 ALIAS:
712 aio_unlink = REQ_UNLINK 1400 aio_unlink = EIO_UNLINK
713 aio_rmdir = REQ_RMDIR 1401 aio_rmdir = EIO_RMDIR
1402 aio_readdir = EIO_READDIR
714 CODE: 1403 PPCODE:
715{ 1404{
716 dREQ; 1405 dREQ;
717 1406
718 req->type = ix; 1407 req->type = ix;
719 req->data = newSVsv (pathname); 1408 req_set_path1 (req, pathname);
720 req->dataptr = SvPVbyte_nolen (req->data);
721
722 send_req (req);
723}
724 1409
1410 REQ_SEND;
1411}
1412
725void 1413void
726aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1414aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
727 SV * oldpath 1415 ALIAS:
728 SV * newpath 1416 aio_link = EIO_LINK
729 SV * callback 1417 aio_symlink = EIO_SYMLINK
1418 aio_rename = EIO_RENAME
730 CODE: 1419 PPCODE:
731{ 1420{
1421 eio_wd wd2 = 0;
732 dREQ; 1422 dREQ;
733 1423
734 req->type = REQ_SYMLINK; 1424 req->type = ix;
735 req->fh = newSVsv (oldpath); 1425 req_set_path1 (req, oldpath);
736 req->data2ptr = SvPVbyte_nolen (req->fh); 1426 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
737 req->data = newSVsv (newpath); 1427 req->int3 = (long)wd2;
738 req->dataptr = SvPVbyte_nolen (req->data);
739 1428
740 send_req (req); 1429 REQ_SEND;
741} 1430}
742 1431
743void 1432void
744flush() 1433aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
745 PROTOTYPE: 1434 PPCODE:
1435{
1436 dREQ;
1437
1438 req->type = EIO_MKNOD;
1439 req->int2 = (mode_t)mode;
1440 req->offs = dev;
1441 req_set_path1 (req, pathname);
1442
1443 REQ_SEND;
1444}
1445
1446void
1447aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1448 ALIAS:
1449 aio_mtouch = EIO_MTOUCH
1450 aio_msync = EIO_MSYNC
1451 PPCODE:
1452{
1453 STRLEN svlen;
1454 char *svptr = SvPVbyte (data, svlen);
1455 UV len = SvUV (length);
1456
1457 if (offset < 0)
1458 offset += svlen;
1459
1460 if (offset < 0 || offset > svlen)
1461 croak ("offset outside of scalar");
1462
1463 if (!SvOK (length) || len + offset > svlen)
1464 len = svlen - offset;
1465
1466 {
1467 dREQ;
1468
1469 req->type = ix;
1470 req->sv2 = SvREFCNT_inc (data);
1471 req->ptr2 = (char *)svptr + offset;
1472 req->size = len;
1473 req->int1 = flags;
1474
1475 REQ_SEND;
1476 }
1477}
1478
1479void
1480aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1481 PPCODE:
1482{
1483 STRLEN svlen;
1484 char *svptr = SvPVbyte (data, svlen);
1485 UV len = SvUV (length);
1486
1487 if (offset < 0)
1488 offset += svlen;
1489
1490 if (offset < 0 || offset > svlen)
1491 croak ("offset outside of scalar");
1492
1493 if (!SvOK (length) || len + offset > svlen)
1494 len = svlen - offset;
1495
1496 {
1497 dREQ;
1498
1499 req->type = EIO_MLOCK;
1500 req->sv2 = SvREFCNT_inc (data);
1501 req->ptr2 = (char *)svptr + offset;
1502 req->size = len;
1503
1504 REQ_SEND;
1505 }
1506}
1507
1508void
1509aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1510 PPCODE:
1511{
1512 dREQ;
1513
1514 req->type = EIO_MLOCKALL;
1515 req->int1 = flags;
1516
1517 REQ_SEND;
1518}
1519
1520void
1521aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1522 PPCODE:
1523{
1524 int fd = s_fileno_croak (fh, 0);
1525 dREQ;
1526
1527 req->type = EIO_CUSTOM;
1528 req->sv1 = newSVsv (fh);
1529 req->int1 = fd;
1530
1531 req->feed = fiemap;
1532#if HAVE_FIEMAP
1533 /* keep our fingers crossed that the next two types are 64 bit */
1534 req->offs = start;
1535 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1536 req->int2 = flags;
1537 req->int3 = SvOK (count) ? SvIV (count) : -1;
1538#endif
1539
1540 REQ_SEND;
1541}
1542
1543void
1544aio_busy (double delay, SV *callback=&PL_sv_undef)
1545 PPCODE:
1546{
1547 dREQ;
1548
1549 req->type = EIO_BUSY;
1550 req->nv1 = delay < 0. ? 0. : delay;
1551
1552 REQ_SEND;
1553}
1554
1555void
1556aio_group (SV *callback=&PL_sv_undef)
1557 PPCODE:
1558{
1559 dREQ;
1560
1561 req->type = EIO_GROUP;
1562
1563 req_submit (req);
1564 XPUSHs (req_sv (req, aio_grp_stash));
1565}
1566
1567void
1568aio_nop (SV *callback=&PL_sv_undef)
1569 ALIAS:
1570 aio_nop = EIO_NOP
1571 aio_sync = EIO_SYNC
1572 PPCODE:
1573{
1574 dREQ;
1575
1576 req->type = ix;
1577
1578 REQ_SEND;
1579}
1580
1581int
1582aioreq_pri (int pri = 0)
746 CODE: 1583 CODE:
1584 RETVAL = next_pri;
1585 if (items > 0)
1586 {
1587 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1588 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1589 next_pri = pri;
1590 }
1591 OUTPUT:
1592 RETVAL
1593
1594void
1595aioreq_nice (int nice = 0)
1596 CODE:
1597 nice = next_pri - nice;
1598 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1599 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1600 next_pri = nice;
1601
1602void
1603flush ()
1604 CODE:
747 while (nreqs) 1605 while (eio_nreqs ())
748 { 1606 {
749 poll_wait (); 1607 poll_wait ();
750 poll_cb (); 1608 poll_cb ();
751 } 1609 }
752 1610
753void 1611int
754poll() 1612poll ()
755 PROTOTYPE:
756 CODE: 1613 CODE:
757 if (nreqs)
758 {
759 poll_wait (); 1614 poll_wait ();
760 poll_cb (); 1615 RETVAL = poll_cb ();
761 }
762
763int
764poll_fileno()
765 PROTOTYPE:
766 CODE:
767 RETVAL = respipe [0];
768 OUTPUT: 1616 OUTPUT:
769 RETVAL 1617 RETVAL
770 1618
771int 1619int
1620poll_fileno ()
1621 CODE:
1622 RETVAL = s_epipe_fd (&respipe);
1623 OUTPUT:
1624 RETVAL
1625
1626int
772poll_cb(...) 1627poll_cb (...)
773 PROTOTYPE: 1628 PROTOTYPE:
774 CODE: 1629 CODE:
775 RETVAL = poll_cb (); 1630 RETVAL = poll_cb ();
776 OUTPUT: 1631 OUTPUT:
777 RETVAL 1632 RETVAL
778 1633
779void 1634void
780poll_wait() 1635poll_wait ()
781 PROTOTYPE:
782 CODE: 1636 CODE:
783 if (nreqs)
784 poll_wait (); 1637 poll_wait ();
785 1638
786int 1639int
787nreqs() 1640nreqs ()
788 PROTOTYPE:
789 CODE: 1641 CODE:
790 RETVAL = nreqs; 1642 RETVAL = eio_nreqs ();
791 OUTPUT: 1643 OUTPUT:
792 RETVAL 1644 RETVAL
793 1645
1646int
1647nready ()
1648 CODE:
1649 RETVAL = eio_nready ();
1650 OUTPUT:
1651 RETVAL
1652
1653int
1654npending ()
1655 CODE:
1656 RETVAL = eio_npending ();
1657 OUTPUT:
1658 RETVAL
1659
1660int
1661nthreads ()
1662 CODE:
1663 RETVAL = eio_nthreads ();
1664 OUTPUT:
1665 RETVAL
1666
1667int
1668fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1669 CODE:
1670 RETVAL = posix_fadvise (fh, offset, length, advice);
1671 OUTPUT:
1672 RETVAL
1673
1674IV
1675sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1676 CODE:
1677 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1678 OUTPUT:
1679 RETVAL
1680
1681void
1682mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1683 PPCODE:
1684 sv_unmagic (scalar, MMAP_MAGIC);
1685{
1686 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1687 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1688 if (addr == (void *)-1)
1689 XSRETURN_NO;
1690
1691 sv_force_normal (scalar);
1692
1693 /* we store the length in mg_obj, as namlen is I32 :/ */
1694 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1695 ->mg_obj = (SV *)length;
1696
1697 SvUPGRADE (scalar, SVt_PV); /* nop... */
1698
1699 if (!(prot & PROT_WRITE))
1700 SvREADONLY_on (scalar);
1701
1702 if (SvLEN (scalar))
1703 Safefree (SvPVX (scalar));
1704
1705 SvPVX (scalar) = (char *)addr;
1706 SvCUR_set (scalar, length);
1707 SvLEN_set (scalar, 0);
1708 SvPOK_only (scalar);
1709
1710 XSRETURN_YES;
1711}
1712
1713void
1714munmap (SV *scalar)
1715 CODE:
1716 sv_unmagic (scalar, MMAP_MAGIC);
1717
1718int
1719madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1720 ALIAS:
1721 mprotect = 1
1722 CODE:
1723{
1724 STRLEN svlen;
1725 void *addr = SvPVbyte (scalar, svlen);
1726 size_t len = SvUV (length);
1727
1728 if (offset < 0)
1729 offset += svlen;
1730
1731 if (offset < 0 || offset > svlen)
1732 croak ("offset outside of scalar");
1733
1734 if (!SvOK (length) || len + offset > svlen)
1735 len = svlen - offset;
1736
1737 addr = (void *)(((intptr_t)addr) + offset);
1738 eio_page_align (&addr, &len);
1739
1740 switch (ix)
1741 {
1742 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1743 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1744 }
1745}
1746 OUTPUT:
1747 RETVAL
1748
1749int
1750munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1751 CODE:
1752{
1753 STRLEN svlen;
1754 void *addr = SvPVbyte (scalar, svlen);
1755 size_t len = SvUV (length);
1756
1757 if (offset < 0)
1758 offset += svlen;
1759
1760 if (offset < 0 || offset > svlen)
1761 croak ("offset outside of scalar");
1762
1763 if (!SvOK (length) || len + offset > svlen)
1764 len = svlen - offset;
1765
1766 addr = (void *)(((intptr_t)addr) + offset);
1767 eio_page_align (&addr, &len);
1768#if _POSIX_MEMLOCK_RANGE
1769 RETVAL = munlock (addr, len);
1770#else
1771 RETVAL = ((errno = ENOSYS), -1);
1772#endif
1773}
1774 OUTPUT:
1775 RETVAL
1776
1777int
1778munlockall ()
1779 CODE:
1780#if _POSIX_MEMLOCK
1781 munlockall ();
1782#else
1783 RETVAL = -1;
1784 errno = ENOSYS;
1785#endif
1786 OUTPUT:
1787 RETVAL
1788
1789void _on_next_submit (SV *cb)
1790 CODE:
1791 SvREFCNT_dec (on_next_submit);
1792 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1793
1794PROTOTYPES: DISABLE
1795
1796MODULE = IO::AIO PACKAGE = IO::AIO::WD
1797
1798BOOT:
1799{
1800 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1801 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1802}
1803
1804void
1805DESTROY (SV *self)
1806 CODE:
1807{
1808 aio_wd wd = SvAIO_WD (self);
1809#if HAVE_AT
1810 {
1811 SV *callback = &PL_sv_undef;
1812 dREQ; /* clobbers next_pri :/ */
1813 next_pri = req->pri; /* restore next_pri */
1814 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1815 req->type = EIO_WD_CLOSE;
1816 req->wd = wd;
1817 REQ_SEND;
1818 }
1819#else
1820 eio_wd_close_sync (wd);
1821#endif
1822}
1823
1824MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1825
1826void
1827cancel (aio_req_ornot req)
1828 CODE:
1829 eio_cancel (req);
1830
1831void
1832cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1833 PPCODE:
1834{
1835 if (GIMME_V != G_VOID)
1836 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1837
1838 if (items > 1)
1839 {
1840 SV *cb_cv =get_cb (callback);
1841
1842 SvREFCNT_dec (req->callback);
1843 req->callback = SvREFCNT_inc (cb_cv);
1844 }
1845}
1846
1847MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1848
1849void
1850add (aio_req grp, ...)
1851 PPCODE:
1852{
1853 int i;
1854
1855 if (grp->int1 == 2)
1856 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1857
1858 for (i = 1; i < items; ++i )
1859 {
1860 aio_req req;
1861
1862 if (GIMME_V != G_VOID)
1863 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1864
1865 req = SvAIO_REQ (ST (i));
1866
1867 if (req)
1868 eio_grp_add (grp, req);
1869 }
1870}
1871
1872void
1873cancel_subs (aio_req_ornot req)
1874 CODE:
1875 req_cancel_subs (req);
1876
1877void
1878result (aio_req grp, ...)
1879 CODE:
1880{
1881 int i;
1882 AV *av;
1883
1884 grp->errorno = errno;
1885
1886 av = newAV ();
1887 av_extend (av, items - 1);
1888
1889 for (i = 1; i < items; ++i )
1890 av_push (av, newSVsv (ST (i)));
1891
1892 SvREFCNT_dec (grp->sv1);
1893 grp->sv1 = (SV *)av;
1894}
1895
1896void
1897errno (aio_req grp, int errorno = errno)
1898 CODE:
1899 grp->errorno = errorno;
1900
1901void
1902limit (aio_req grp, int limit)
1903 CODE:
1904 eio_grp_limit (grp, limit);
1905
1906void
1907feed (aio_req grp, SV *callback=&PL_sv_undef)
1908 CODE:
1909{
1910 SvREFCNT_dec (grp->sv2);
1911 grp->sv2 = newSVsv (callback);
1912 grp->feed = aio_grp_feed;
1913
1914 if (grp->int2 <= 0)
1915 grp->int2 = 2;
1916
1917 eio_grp_limit (grp, grp->int2);
1918}
1919

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