ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/IO-AIO/AIO.xs
(Generate patch)

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.22 by root, Tue Aug 16 22:22:18 2005 UTC vs.
Revision 1.225 by root, Sat Dec 29 09:35:39 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
144
145/* defines all sorts of constants to 0 unless they are already defined */
146#include "def0.h"
147
148#ifndef makedev
149# define makedev(maj,min) (((maj) << 8) | (min))
150#endif
151#ifndef major
152# define major(dev) ((dev) >> 8)
153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
157
158#if PAGESIZE <= 0
159# define PAGESIZE sysconf (_SC_PAGESIZE)
160#endif
161
162/*****************************************************************************/
163
164static void
165fiemap (eio_req *req)
166{
167 req->result = -1;
168
169#if HAVE_FIEMAP
170 /* assume some c99 */
171 struct fiemap *fiemap = 0;
172 size_t end_offset;
173 int count = req->int3;
174
175 req->flags |= EIO_FLAG_PTR1_FREE;
176
177 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
178 /* increase in 3.5kb steps */
179 if (count < 0)
180 count = 8;
181
182 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
183 errno = ENOMEM;
184 if (!fiemap)
185 return;
186
187 req->ptr1 = fiemap;
188
189 fiemap->fm_start = req->offs;
190 fiemap->fm_length = req->size;
191 fiemap->fm_flags = req->int2;
192 fiemap->fm_extent_count = count;
193
194 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
195 return;
196
197 if (req->int3 >= 0 /* not autosizing */
198 || !fiemap->fm_mapped_extents /* no more extents */
199 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
200 goto done;
201
202 /* else we have to loop -
203 * it would be tempting (atcually I tried that first) to just query the
204 * number of extents needed, but linux often feels like not returning all
205 * extents, without telling us it left any out. this complicates
206 * this quite a bit.
207 */
208
209 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
210
211 for (;;)
212 {
213 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
214 char scratch[3072];
215 struct fiemap *incmap = (struct fiemap *)scratch;
216
217 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
218 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
219 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
220 incmap->fm_flags = fiemap->fm_flags;
221 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
222
223 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
224 return;
225
226 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
227 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
228 errno = ENOMEM;
229 if (!fiemap)
230 return;
231
232 req->ptr1 = fiemap;
233
234 for (count = 0; count < incmap->fm_mapped_extents; ++count)
235 {
236 struct fiemap_extent *e = incmap->fm_extents + count;
237
238 if (e->fe_logical + e->fe_length >= end_offset)
239 goto done;
240
241 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
242
243 if (e->fe_flags & FIEMAP_EXTENT_LAST)
244 goto done;
245
246 }
247 }
248
249done:
250 req->result = 0;
251
252#else
253 errno = ENOSYS;
254#endif
255}
256
257/*****************************************************************************/
29 258
30enum { 259enum {
31 REQ_QUIT, 260 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
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, REQ_SYMLINK,
37 REQ_SYMLINK,
38}; 261};
39 262
40typedef struct aio_cb {
41 struct aio_cb *volatile next;
42
43 int type;
44
45 int fd;
46 off_t offset;
47 size_t length;
48 ssize_t result;
49 mode_t mode; /* open */
50 int errorno;
51 SV *data, *callback, *fh;
52 void *dataptr, *data2ptr;
53 STRLEN dataoffset;
54
55 Stat_t *statdata;
56} aio_cb;
57
58typedef aio_cb *aio_req; 263typedef eio_req *aio_req;
264typedef eio_req *aio_req_ornot;
265typedef eio_wd aio_wd;
59 266
60static int started; 267static SV *on_next_submit;
61static volatile int nreqs; 268static int next_pri = EIO_PRI_DEFAULT;
62static int max_outstanding = 1<<30; 269static int max_outstanding;
63static int respipe [2];
64 270
65static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 271static s_epipe respipe;
66static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67static pthread_mutex_t frklock = PTHREAD_MUTEX_INITIALIZER;
68static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
69 272
70static volatile aio_req reqs, reqe; /* queue start, queue end */ 273static void req_destroy (aio_req req);
71static volatile aio_req ress, rese; /* queue start, queue end */ 274static void req_cancel (aio_req req);
72 275
73static void 276static void
74poll_wait () 277want_poll (void)
75{ 278{
76 if (nreqs && !ress) 279 /* write a dummy byte to the pipe so fh becomes ready */
280 s_epipe_signal (&respipe);
281}
282
283static void
284done_poll (void)
285{
286 /* read any signals sent by the worker threads */
287 s_epipe_drain (&respipe);
288}
289
290/* must be called at most once */
291static SV *
292req_sv (aio_req req, HV *stash)
293{
294 if (!req->self)
77 { 295 {
78 fd_set rfd; 296 req->self = (SV *)newHV ();
79 FD_ZERO(&rfd); 297 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
80 FD_SET(respipe [0], &rfd);
81
82 select (respipe [0] + 1, &rfd, 0, 0, 0);
83 } 298 }
299
300 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
301}
302
303static SV *
304newSVaio_wd (aio_wd wd)
305{
306 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
307}
308
309static aio_req
310SvAIO_REQ (SV *sv)
311{
312 MAGIC *mg;
313
314 if (!SvROK (sv)
315 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
316 || (SvSTASH (SvRV (sv)) != aio_grp_stash
317 && SvSTASH (SvRV (sv)) != aio_req_stash
318 && !sv_derived_from (sv, "IO::AIO::REQ")))
319 croak ("object of class IO::AIO::REQ expected");
320
321 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
322
323 return mg ? (aio_req)mg->mg_ptr : 0;
324}
325
326static aio_wd
327SvAIO_WD (SV *sv)
328{
329 if (!SvROK (sv)
330 || SvTYPE (SvRV (sv)) != SVt_PVMG
331 || SvSTASH (SvRV (sv)) != aio_wd_stash)
332 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
333
334 return (aio_wd)(long)SvIVX (SvRV (sv));
335}
336
337static void
338aio_grp_feed (aio_req grp)
339{
340 if (grp->sv2 && SvOK (grp->sv2))
341 {
342 dSP;
343
344 ENTER;
345 SAVETMPS;
346 PUSHMARK (SP);
347 XPUSHs (req_sv (grp, aio_grp_stash));
348 PUTBACK;
349 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
350 SPAGAIN;
351 FREETMPS;
352 LEAVE;
353 }
354}
355
356static void
357req_submit (eio_req *req)
358{
359 eio_submit (req);
360
361 if (expect_false (on_next_submit))
362 {
363 dSP;
364 SV *cb = sv_2mortal (on_next_submit);
365
366 on_next_submit = 0;
367
368 PUSHMARK (SP);
369 PUTBACK;
370 call_sv (cb, G_DISCARD | G_EVAL);
371 }
84} 372}
85 373
86static int 374static int
87poll_cb () 375req_invoke (eio_req *req)
88{ 376{
89 dSP; 377 if (req->flags & FLAG_SV2_RO_OFF)
90 int count = 0; 378 SvREADONLY_off (req->sv2);
91 aio_req req, prv;
92 379
93 pthread_mutex_lock (&reslock); 380 if (!EIO_CANCELLED (req) && req->callback)
94
95 {
96 /* read any signals sent by the worker threads */
97 char buf [32];
98 while (read (respipe [0], buf, 32) == 32)
99 ;
100 }
101
102 req = ress;
103 ress = rese = 0;
104
105 pthread_mutex_unlock (&reslock);
106
107 while (req)
108 { 381 {
109 nreqs--; 382 dSP;
383 static SV *sv_result_cache; /* caches the result integer SV */
384 SV *sv_result;
110 385
111 if (req->type == REQ_QUIT) 386 ENTER;
112 started--; 387 SAVETMPS;
113 else 388 PUSHMARK (SP);
389 EXTEND (SP, 1);
390
391 /* do not recreate the result IV from scratch each time */
392 if (expect_true (sv_result_cache))
114 { 393 {
115 int errorno = errno; 394 sv_result = sv_result_cache; sv_result_cache = 0;
116 errno = req->errorno; 395 SvIV_set (sv_result, req->result);
117 396 SvIOK_only (sv_result);
118 if (req->type == REQ_READ)
119 SvCUR_set (req->data, req->dataoffset
120 + req->result > 0 ? req->result : 0);
121
122 if (req->data)
123 SvREFCNT_dec (req->data);
124
125 if (req->fh)
126 SvREFCNT_dec (req->fh);
127
128 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
129 {
130 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
131 PL_laststatval = req->result;
132 PL_statcache = *(req->statdata);
133
134 Safefree (req->statdata);
135 }
136
137 ENTER;
138 PUSHMARK (SP);
139 XPUSHs (sv_2mortal (newSViv (req->result)));
140
141 if (req->type == REQ_OPEN)
142 {
143 /* convert fd to fh */
144 SV *fh;
145
146 PUTBACK;
147 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
148 SPAGAIN;
149
150 fh = SvREFCNT_inc (POPs);
151
152 PUSHMARK (SP);
153 XPUSHs (sv_2mortal (fh));
154 }
155
156 if (SvOK (req->callback))
157 {
158 PUTBACK;
159 call_sv (req->callback, G_VOID | G_EVAL);
160 SPAGAIN;
161 }
162
163 LEAVE;
164
165 if (req->callback)
166 SvREFCNT_dec (req->callback);
167
168 errno = errorno;
169 count++;
170 }
171
172 prv = req;
173 req = req->next;
174 Safefree (prv);
175
176 /* TODO: croak on errors? */
177 }
178
179 return count;
180}
181
182static void *aio_proc(void *arg);
183
184static void
185start_thread (void)
186{
187 sigset_t fullsigset, oldsigset;
188 pthread_t tid;
189 pthread_attr_t attr;
190
191 pthread_attr_init (&attr);
192 pthread_attr_setstacksize (&attr, STACKSIZE);
193 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
194
195 sigfillset (&fullsigset);
196 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
197
198 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
199 started++;
200
201 sigprocmask (SIG_SETMASK, &oldsigset, 0);
202}
203
204static void
205send_req (aio_req req)
206{
207 nreqs++;
208
209 pthread_mutex_lock (&reqlock);
210
211 req->next = 0;
212
213 if (reqe)
214 {
215 reqe->next = req;
216 reqe = req;
217 }
218 else
219 reqe = reqs = req;
220
221 pthread_cond_signal (&reqwait);
222 pthread_mutex_unlock (&reqlock);
223
224 while (nreqs > max_outstanding)
225 {
226 poll_wait ();
227 poll_cb ();
228 }
229}
230
231static void
232end_thread (void)
233{
234 aio_req req;
235 New (0, req, 1, aio_cb);
236 req->type = REQ_QUIT;
237
238 send_req (req);
239}
240
241
242static void min_parallel (int nthreads)
243{
244 while (nthreads > started)
245 start_thread ();
246}
247
248static void max_parallel (int nthreads)
249{
250 int cur = started;
251 while (cur > nthreads)
252 {
253 end_thread ();
254 cur--;
255 }
256
257 while (started > nthreads)
258 {
259 poll_wait ();
260 poll_cb ();
261 }
262}
263
264static int fork_started;
265
266static void atfork_prepare (void)
267{
268 pthread_mutex_lock (&frklock);
269
270 fork_started = started;
271
272 for (;;) {
273 while (nreqs)
274 {
275 poll_wait ();
276 poll_cb ();
277 }
278
279 max_parallel (0);
280
281 pthread_mutex_lock (&reqlock);
282
283 if (!nreqs && !started)
284 break;
285
286 pthread_mutex_unlock (&reqlock);
287
288 min_parallel (fork_started);
289 }
290
291 pthread_mutex_lock (&reslock);
292
293 assert (!started);
294 assert (!nreqs);
295 assert (!reqs && !reqe);
296 assert (!ress && !rese);
297}
298
299static void atfork_parent (void)
300{
301 pthread_mutex_unlock (&reslock);
302 min_parallel (fork_started);
303 pthread_mutex_unlock (&reqlock);
304 pthread_mutex_unlock (&frklock);
305}
306
307static void atfork_child (void)
308{
309 reqs = reqe = 0;
310
311 atfork_parent ();
312}
313
314/*****************************************************************************/
315/* work around various missing functions */
316
317#if !HAVE_PREADWRITE
318# define pread aio_pread
319# define pwrite aio_pwrite
320
321/*
322 * make our pread/pwrite safe against themselves, but not against
323 * normal read/write by using a mutex. slows down execution a lot,
324 * but that's your problem, not mine.
325 */
326static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
327
328static ssize_t
329pread (int fd, void *buf, size_t count, off_t offset)
330{
331 ssize_t res;
332 off_t ooffset;
333
334 pthread_mutex_lock (&iolock);
335 ooffset = lseek (fd, 0, SEEK_CUR);
336 lseek (fd, offset, SEEK_SET);
337 res = read (fd, buf, count);
338 lseek (fd, ooffset, SEEK_SET);
339 pthread_mutex_unlock (&iolock);
340
341 return res;
342}
343
344static ssize_t
345pwrite (int fd, void *buf, size_t count, off_t offset)
346{
347 ssize_t res;
348 off_t ooffset;
349
350 pthread_mutex_lock (&iolock);
351 ooffset = lseek (fd, 0, SEEK_CUR);
352 lseek (fd, offset, SEEK_SET);
353 res = write (fd, buf, count);
354 lseek (fd, offset, SEEK_SET);
355 pthread_mutex_unlock (&iolock);
356
357 return res;
358}
359#endif
360
361#if !HAVE_FDATASYNC
362# define fdatasync fsync
363#endif
364
365#if !HAVE_READAHEAD
366# define readahead aio_readahead
367
368static char readahead_buf[4096];
369
370static ssize_t
371readahead (int fd, off_t offset, size_t count)
372{
373 while (count > 0)
374 {
375 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
376
377 pread (fd, readahead_buf, len, offset);
378 offset += len;
379 count -= len;
380 }
381
382 errno = 0;
383}
384#endif
385
386/*****************************************************************************/
387
388static void *
389aio_proc (void *thr_arg)
390{
391 aio_req req;
392 int type;
393
394 do
395 {
396 pthread_mutex_lock (&reqlock);
397
398 for (;;)
399 {
400 req = reqs;
401
402 if (reqs)
403 {
404 reqs = reqs->next;
405 if (!reqs) reqe = 0;
406 }
407
408 if (req)
409 break;
410
411 pthread_cond_wait (&reqwait, &reqlock);
412 }
413
414 pthread_mutex_unlock (&reqlock);
415
416 errno = 0; /* strictly unnecessary */
417
418 type = req->type;
419
420 switch (type)
421 {
422 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
423 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
424
425 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
426
427 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
428 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
429 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
430
431 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
432 case REQ_CLOSE: req->result = close (req->fd); break;
433 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
434 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
435 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
436
437 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
438 case REQ_FSYNC: req->result = fsync (req->fd); break;
439
440 case REQ_QUIT:
441 break;
442
443 default:
444 req->result = ENOSYS;
445 break;
446 }
447
448 req->errorno = errno;
449
450 pthread_mutex_lock (&reslock);
451
452 req->next = 0;
453
454 if (rese)
455 {
456 rese->next = req;
457 rese = req;
458 } 397 }
459 else 398 else
460 { 399 {
461 rese = ress = req; 400 sv_result = newSViv (req->result);
462 401 SvREADONLY_on (sv_result);
463 /* write a dummy byte to the pipe so fh becomes ready */
464 write (respipe [1], &respipe, 1);
465 } 402 }
466 403
467 pthread_mutex_unlock (&reslock); 404 switch (req->type)
405 {
406 case EIO_WD_OPEN:
407 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
408 break;
409
410 case EIO_READDIR:
411 {
412 SV *rv = &PL_sv_undef;
413
414 if (req->result >= 0)
415 {
416 int i;
417 char *names = (char *)req->ptr2;
418 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
419 AV *av = newAV ();
420
421 av_extend (av, req->result - 1);
422
423 for (i = 0; i < req->result; ++i)
424 {
425 if (req->int1 & EIO_READDIR_DENTS)
426 {
427 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
428
429 if (req->int1 & EIO_READDIR_CUSTOM2)
430 {
431 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
432 AV *avent = newAV ();
433
434 av_extend (avent, 2);
435
436 if (!sv_type [ent->type])
437 {
438 sv_type [ent->type] = newSViv (ent->type);
439 SvREADONLY_on (sv_type [ent->type]);
440 }
441
442 av_store (avent, 0, namesv);
443 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
444 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
445
446 av_store (av, i, newRV_noinc ((SV *)avent));
447 }
448 else
449 av_store (av, i, namesv);
450
451 ++ent;
452 }
453 else
454 {
455 SV *name = newSVpv (names, 0);
456 av_store (av, i, name);
457 names += SvCUR (name) + 1;
458 }
459 }
460
461 rv = sv_2mortal (newRV_noinc ((SV *)av));
462 }
463
464 PUSHs (rv);
465
466 if (req->int1 & EIO_READDIR_CUSTOM1)
467 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
468 }
469 break;
470
471 case EIO_OPEN:
472 {
473 /* convert fd to fh */
474 SV *fh = &PL_sv_undef;
475
476 if (req->result >= 0)
477 {
478 GV *gv = (GV *)sv_newmortal ();
479 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
480 char sym [64];
481 int symlen;
482
483 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
484 gv_init (gv, aio_stash, sym, symlen, 0);
485
486 symlen = snprintf (
487 sym,
488 sizeof (sym),
489 "%s&=%d",
490 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
491 (int)req->result
492 );
493
494 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
495 fh = (SV *)gv;
496 }
497
498 PUSHs (fh);
499 }
500 break;
501
502 case EIO_STATVFS:
503 case EIO_FSTATVFS:
504 {
505 SV *rv = &PL_sv_undef;
506
507#ifndef _WIN32
508 if (req->result >= 0)
509 {
510 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
511 HV *hv = newHV ();
512 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
513 * chooses to make it a struct.
514 */
515 unsigned long fsid = 0;
516 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
517
518 rv = sv_2mortal (newRV_noinc ((SV *)hv));
519
520 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
521 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
522 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
523 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
524 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
525 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
526 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
527 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
528 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
529 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
530 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
531 }
532#endif
533
534 PUSHs (rv);
535 }
536
537 break;
538
539 case EIO_GROUP:
540 req->int1 = 2; /* mark group as finished */
541
542 if (req->sv1)
543 {
544 int i;
545 AV *av = (AV *)req->sv1;
546
547 EXTEND (SP, AvFILL (av) + 1);
548 for (i = 0; i <= AvFILL (av); ++i)
549 PUSHs (*av_fetch (av, i, 0));
550 }
551 break;
552
553 case EIO_NOP:
554 case EIO_BUSY:
555 break;
556
557 case EIO_READLINK:
558 case EIO_REALPATH:
559 if (req->result > 0)
560 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
561 break;
562
563 case EIO_STAT:
564 case EIO_LSTAT:
565 case EIO_FSTAT:
566 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
567
568 if (!(PL_laststatval = req->result))
569 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
570 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
571
572 PUSHs (sv_result);
573 break;
574
575 case EIO_SEEK:
576 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
577 break;
578
579 case EIO_READ:
580 {
581 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
582 *SvEND (req->sv2) = 0;
583 SvPOK_only (req->sv2);
584 SvSETMAGIC (req->sv2);
585 PUSHs (sv_result);
586 }
587 break;
588
589 case EIO_CUSTOM:
590 if (req->feed == fiemap)
591 {
592#if HAVE_FIEMAP
593 if (!req->result)
594 {
595 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
596
597 if (fiemap->fm_extent_count)
598 {
599 AV *av = newAV ();
600 int i;
601
602 while (fiemap->fm_mapped_extents)
603 {
604 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
605 AV *ext_av = newAV ();
606
607 av_store (ext_av, 3, newSVuv (extent->fe_flags));
608 av_store (ext_av, 2, newSVval64 (extent->fe_length));
609 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
610 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
611
612 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
613 }
614
615 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
616 }
617 else
618 {
619 SvIV_set (sv_result, fiemap->fm_mapped_extents);
620 PUSHs (sv_result);
621 }
622 }
623#endif
624 }
625 else
626 PUSHs (sv_result);
627 break;
628
629 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
630 if (req->result > 0)
631 SvIV_set (sv_result, 0);
632 /* FALLTHROUGH */
633
634 default:
635 PUSHs (sv_result);
636 break;
637 }
638
639 errno = req->errorno;
640
641 PUTBACK;
642 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
643 SPAGAIN;
644
645 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
646 SvREFCNT_dec (sv_result);
647 else
648 sv_result_cache = sv_result;
649
650 FREETMPS;
651 LEAVE;
652
653 PUTBACK;
468 } 654 }
469 while (type != REQ_QUIT); 655
656 return !!SvTRUE (ERRSV);
657}
658
659static void
660req_destroy (aio_req req)
661{
662 if (req->self)
663 {
664 sv_unmagic (req->self, PERL_MAGIC_ext);
665 SvREFCNT_dec (req->self);
666 }
667
668 SvREFCNT_dec (req->sv1);
669 SvREFCNT_dec (req->sv2);
670 SvREFCNT_dec (req->sv3);
671 SvREFCNT_dec (req->sv4);
672 SvREFCNT_dec (req->callback);
673
674 free (req);
675}
676
677static void
678req_cancel_subs (aio_req grp)
679{
680 if (grp->type != EIO_GROUP)
681 return;
682
683 SvREFCNT_dec (grp->sv2);
684 grp->sv2 = 0;
685
686 eio_grp_cancel (grp);
687}
688
689static void ecb_cold
690create_respipe (void)
691{
692 if (s_epipe_renew (&respipe))
693 croak ("IO::AIO: unable to initialize result pipe");
694}
695
696static void
697poll_wait (void)
698{
699 while (eio_nreqs ())
700 {
701 int size;
702
703 X_LOCK (reslock);
704 size = res_queue.size;
705 X_UNLOCK (reslock);
706
707 if (size)
708 return;
709
710 etp_maybe_start_thread ();
711
712 s_epipe_wait (&respipe);
713 }
714}
715
716static int
717poll_cb (void)
718{
719 for (;;)
720 {
721 int res = eio_poll ();
722
723 if (res > 0)
724 croak (0);
725
726 if (!max_outstanding || max_outstanding > eio_nreqs ())
727 return res;
728
729 poll_wait ();
730 }
731}
732
733static void ecb_cold
734reinit (void)
735{
736 create_respipe ();
737
738 if (eio_init (want_poll, done_poll) < 0)
739 croak ("IO::AIO: unable to initialise eio library");
740}
741
742/*****************************************************************************/
743
744#if !_POSIX_MAPPED_FILES
745# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
746# define munmap(addr,length) EIO_ENOSYS ()
747#endif
748
749#if !_POSIX_MEMORY_PROTECTION
750# define mprotect(addr,len,prot) EIO_ENOSYS ()
751# define PROT_NONE 0
752# define PROT_WRITE 0
753# define MAP_PRIVATE 0
754# define MAP_SHARED 0
755# define MAP_FIXED 0
756#endif
757
758#define MMAP_MAGIC PERL_MAGIC_ext
759
760static int ecb_cold
761mmap_free (pTHX_ SV *sv, MAGIC *mg)
762{
763 int old_errno = errno;
764 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
765 errno = old_errno;
766
767 mg->mg_obj = 0; /* just in case */
768
769 SvREADONLY_off (sv);
770
771 if (SvPVX (sv) != mg->mg_ptr)
772 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
773
774 SvCUR_set (sv, 0);
775 SvPVX (sv) = 0;
776 SvOK_off (sv);
470 777
471 return 0; 778 return 0;
472} 779}
473 780
781static MGVTBL mmap_vtbl = {
782 0, 0, 0, 0, mmap_free
783};
784
785/*****************************************************************************/
786
787static SV *
788get_cb (SV *cb_sv)
789{
790 SvGETMAGIC (cb_sv);
791 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
792}
793
794static aio_req ecb_noinline
795dreq (SV *callback)
796{
797 SV *cb_cv;
798 aio_req req;
799 int req_pri = next_pri;
800 next_pri = EIO_PRI_DEFAULT;
801
802 cb_cv = get_cb (callback);
803
804 req = calloc (sizeof (*req), 1);
805 if (!req)
806 croak ("out of memory during eio_req allocation");
807
808 req->callback = SvREFCNT_inc (cb_cv);
809 req->pri = req_pri;
810
811 return req;
812}
813
474#define dREQ \ 814#define dREQ \
475 aio_req req; \ 815 aio_req req = dreq (callback); \
816
817#define REQ_SEND \
818 PUTBACK; \
819 req_submit (req); \
820 SPAGAIN; \
476 \ 821 \
477 if (SvOK (callback) && !SvROK (callback)) \ 822 if (GIMME_V != G_VOID) \
478 croak ("clalback must be undef or of reference type"); \ 823 XPUSHs (req_sv (req, aio_req_stash));
479 \ 824
480 Newz (0, req, 1, aio_cb); \ 825ecb_inline void
481 if (!req) \ 826req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
482 croak ("out of memory during aio_req allocation"); \ 827{
483 \ 828 if (expect_false (SvROK (path)))
484 req->callback = SvREFCNT_inc (callback); 829 {
485 830 SV *rv = SvRV (path);
831 SV *wdob;
832
833 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
834 {
835 path = AvARRAY (rv)[1];
836 wdob = AvARRAY (rv)[0];
837
838 if (SvOK (wdob))
839 {
840 *wd = SvAIO_WD (wdob);
841 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
842 }
843 else
844 *wd = EIO_INVALID_WD;
845 }
846 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
847 {
848 *wd = (aio_wd)(long)SvIVX (rv);
849 *wdsv = SvREFCNT_inc_NN (rv);
850 *ptr = ".";
851 return; /* path set to "." */
852 }
853 else
854 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
855 }
856
857 *pathsv = newSVsv (path);
858 *ptr = SvPVbyte_nolen (*pathsv);
859}
860
861static void ecb_noinline
862req_set_path1 (aio_req req, SV *path)
863{
864 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
865}
866
867static void ecb_noinline
868req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
869{
870 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
871
872 switch (SvTYPE (rv))
873 {
874 case SVt_PVIO:
875 case SVt_PVLV:
876 case SVt_PVGV:
877 req->type = type_fh;
878 req->sv1 = newSVsv (fh_or_path);
879 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
880 break;
881
882 default:
883 req->type = type_path;
884 req_set_path1 (req, fh_or_path);
885 break;
886 }
887}
888
889XS(boot_IO__AIO) ecb_cold;
890
486MODULE = IO::AIO PACKAGE = IO::AIO 891MODULE = IO::AIO PACKAGE = IO::AIO
487 892
488PROTOTYPES: ENABLE 893PROTOTYPES: ENABLE
489 894
490BOOT: 895BOOT:
491{ 896{
492 if (pipe (respipe)) 897 static const struct {
493 croak ("unable to initialize result pipe"); 898 const char *name;
899 IV iv;
900 } *civ, const_iv[] = {
901# define const_niv(name, value) { # name, (IV) value },
902# define const_iv(name) { # name, (IV) name },
903# define const_eio(name) { # name, (IV) EIO_ ## name },
494 904
495 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 905 /* you have to re-run ./gendef0 after adding/Removing any constants here */
496 croak ("cannot set result pipe to nonblocking mode");
497 906
498 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 907 const_iv (ENOSYS)
499 croak ("cannot set result pipe to nonblocking mode"); 908 const_iv (EXDEV)
909 const_iv (EBADR)
500 910
501 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 911 const_iv (O_RDONLY)
502} 912 const_iv (O_WRONLY)
913 const_iv (O_RDWR)
914 const_iv (O_CREAT)
915 const_iv (O_TRUNC)
916 const_iv (O_EXCL)
917 const_iv (O_APPEND)
503 918
919 const_iv (O_ASYNC)
920 const_iv (O_DIRECT)
921 const_iv (O_NOATIME)
922
923 const_iv (O_CLOEXEC)
924 const_iv (O_NOCTTY)
925 const_iv (O_NOFOLLOW)
926 const_iv (O_NONBLOCK)
927 const_iv (O_EXEC)
928 const_iv (O_SEARCH)
929 const_iv (O_DIRECTORY)
930 const_iv (O_DSYNC)
931 const_iv (O_RSYNC)
932 const_iv (O_SYNC)
933 const_iv (O_TTY_INIT)
934
935 const_iv (S_IFIFO)
936 const_iv (S_IFCHR)
937 const_iv (S_IFBLK)
938 const_iv (S_IFLNK)
939 const_iv (S_IFREG)
940 const_iv (S_IFDIR)
941 const_iv (S_IFWHT)
942 const_iv (S_IFSOCK)
943 const_iv (S_IFMT)
944
945 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
946 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
947 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
948 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
949 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
950 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
951
952 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
953 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
954 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
955 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
956 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
957
958 const_iv (ST_RDONLY)
959 const_iv (ST_NOSUID)
960 const_iv (ST_NODEV)
961 const_iv (ST_NOEXEC)
962 const_iv (ST_SYNCHRONOUS)
963 const_iv (ST_MANDLOCK)
964 const_iv (ST_WRITE)
965 const_iv (ST_APPEND)
966 const_iv (ST_IMMUTABLE)
967 const_iv (ST_NOATIME)
968 const_iv (ST_NODIRATIME)
969 const_iv (ST_RELATIME)
970
971 const_iv (PROT_NONE)
972 const_iv (PROT_EXEC)
973 const_iv (PROT_READ)
974 const_iv (PROT_WRITE)
975
976 /*const_iv (MAP_FIXED)*/
977 const_iv (MAP_PRIVATE)
978 const_iv (MAP_SHARED)
979 const_iv (MAP_ANONYMOUS)
980
981 /* linuxish */
982 const_iv (MAP_HUGETLB)
983 const_iv (MAP_LOCKED)
984 const_iv (MAP_NORESERVE)
985 const_iv (MAP_POPULATE)
986 const_iv (MAP_NONBLOCK)
987
988 const_iv (FIEMAP_FLAG_SYNC)
989 const_iv (FIEMAP_FLAG_XATTR)
990 const_iv (FIEMAP_FLAGS_COMPAT)
991 const_iv (FIEMAP_EXTENT_LAST)
992 const_iv (FIEMAP_EXTENT_UNKNOWN)
993 const_iv (FIEMAP_EXTENT_DELALLOC)
994 const_iv (FIEMAP_EXTENT_ENCODED)
995 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
996 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
997 const_iv (FIEMAP_EXTENT_DATA_INLINE)
998 const_iv (FIEMAP_EXTENT_DATA_TAIL)
999 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1000 const_iv (FIEMAP_EXTENT_MERGED)
1001 const_iv (FIEMAP_EXTENT_SHARED)
1002
1003 const_iv (SPLICE_F_MOVE)
1004 const_iv (SPLICE_F_NONBLOCK)
1005 const_iv (SPLICE_F_MORE)
1006 const_iv (SPLICE_F_GIFT)
1007
1008 const_iv (SEEK_DATA)
1009 const_iv (SEEK_HOLE)
1010
1011 /* libeio constants */
1012 const_eio (SEEK_SET)
1013 const_eio (SEEK_CUR)
1014 const_eio (SEEK_END)
1015
1016 const_eio (MCL_FUTURE)
1017 const_eio (MCL_CURRENT)
1018
1019 const_eio (MS_ASYNC)
1020 const_eio (MS_INVALIDATE)
1021 const_eio (MS_SYNC)
1022
1023 const_eio (MT_MODIFY)
1024
1025 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1026 const_eio (SYNC_FILE_RANGE_WRITE)
1027 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1028
1029 const_eio (FALLOC_FL_KEEP_SIZE)
1030 const_eio (FALLOC_FL_PUNCH_HOLE)
1031
1032 const_eio (READDIR_DENTS)
1033 const_eio (READDIR_DIRS_FIRST)
1034 const_eio (READDIR_STAT_ORDER)
1035 const_eio (READDIR_FOUND_UNKNOWN)
1036
1037 const_eio (DT_UNKNOWN)
1038 const_eio (DT_FIFO)
1039 const_eio (DT_CHR)
1040 const_eio (DT_DIR)
1041 const_eio (DT_BLK)
1042 const_eio (DT_REG)
1043 const_eio (DT_LNK)
1044 const_eio (DT_SOCK)
1045 const_eio (DT_WHT)
1046 };
1047
1048 aio_stash = gv_stashpv ("IO::AIO" , 1);
1049 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1050 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1051 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1052
1053 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1054 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1055
1056 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1057
1058 reinit ();
1059}
1060
504void 1061void
505min_parallel(nthreads) 1062reinit ()
506 int nthreads 1063 PROTOTYPE:
1064
1065void
1066max_poll_reqs (unsigned int nreqs)
507 PROTOTYPE: $ 1067 PROTOTYPE: $
1068 CODE:
1069 eio_set_max_poll_reqs (nreqs);
508 1070
509void 1071void
510max_parallel(nthreads) 1072max_poll_time (double nseconds)
511 int nthreads
512 PROTOTYPE: $ 1073 PROTOTYPE: $
513
514int
515max_outstanding(nreqs)
516 int nreqs
517 PROTOTYPE: $
518 CODE: 1074 CODE:
519 RETVAL = max_outstanding; 1075 eio_set_max_poll_time (nseconds);
1076
1077void
1078min_parallel (unsigned int nthreads)
1079 PROTOTYPE: $
1080 CODE:
1081 eio_set_min_parallel (nthreads);
1082
1083void
1084max_parallel (unsigned int nthreads)
1085 PROTOTYPE: $
1086 CODE:
1087 eio_set_max_parallel (nthreads);
1088
1089void
1090max_idle (unsigned int nthreads)
1091 PROTOTYPE: $
1092 CODE:
1093 eio_set_max_idle (nthreads);
1094
1095void
1096idle_timeout (unsigned int seconds)
1097 PROTOTYPE: $
1098 CODE:
1099 eio_set_idle_timeout (seconds);
1100
1101void
1102max_outstanding (unsigned int maxreqs)
1103 PROTOTYPE: $
1104 CODE:
520 max_outstanding = nreqs; 1105 max_outstanding = maxreqs;
521 1106
522void 1107void
523aio_open(pathname,flags,mode,callback=&PL_sv_undef) 1108aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
524 SV * pathname
525 int flags
526 int mode
527 SV * callback
528 PROTOTYPE: $$$;$
529 CODE: 1109 PPCODE:
530{ 1110{
531 dREQ; 1111 dREQ;
532 1112
1113 req->type = EIO_WD_OPEN;
1114 req_set_path1 (req, pathname);
1115
1116 REQ_SEND;
1117}
1118
1119void
1120aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1121 PPCODE:
1122{
1123 dREQ;
1124
533 req->type = REQ_OPEN; 1125 req->type = EIO_OPEN;
534 req->data = newSVsv (pathname); 1126 req_set_path1 (req, pathname);
535 req->dataptr = SvPVbyte_nolen (req->data);
536 req->fd = flags; 1127 req->int1 = flags;
537 req->mode = mode; 1128 req->int2 = mode;
538 1129
539 send_req (req); 1130 REQ_SEND;
540} 1131}
541 1132
542void 1133void
543aio_close(fh,callback=&PL_sv_undef) 1134aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
544 SV * fh
545 SV * callback
546 PROTOTYPE: $;$
547 ALIAS: 1135 ALIAS:
548 aio_close = REQ_CLOSE
549 aio_fsync = REQ_FSYNC 1136 aio_fsync = EIO_FSYNC
550 aio_fdatasync = REQ_FDATASYNC 1137 aio_fdatasync = EIO_FDATASYNC
1138 aio_syncfs = EIO_SYNCFS
551 CODE: 1139 PPCODE:
552{ 1140{
1141 int fd = s_fileno_croak (fh, 0);
553 dREQ; 1142 dREQ;
554 1143
555 req->type = ix; 1144 req->type = ix;
556 req->fh = newSVsv (fh); 1145 req->sv1 = newSVsv (fh);
557 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1146 req->int1 = fd;
558 1147
559 send_req (req); 1148 REQ_SEND;
560} 1149}
561 1150
562void 1151void
1152aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1153 PPCODE:
1154{
1155 int fd = s_fileno_croak (fh, 0);
1156 dREQ;
1157
1158 req->type = EIO_SYNC_FILE_RANGE;
1159 req->sv1 = newSVsv (fh);
1160 req->int1 = fd;
1161 req->offs = offset;
1162 req->size = nbytes;
1163 req->int2 = flags;
1164
1165 REQ_SEND;
1166}
1167
1168void
1169aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1170 PPCODE:
1171{
1172 int fd = s_fileno_croak (fh, 0);
1173 dREQ;
1174
1175 req->type = EIO_FALLOCATE;
1176 req->sv1 = newSVsv (fh);
1177 req->int1 = fd;
1178 req->int2 = mode;
1179 req->offs = offset;
1180 req->size = len;
1181
1182 REQ_SEND;
1183}
1184
1185void
1186aio_close (SV *fh, SV *callback=&PL_sv_undef)
1187 PPCODE:
1188{
1189 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1190 int fd = s_fileno_croak (fh, 0);
1191 dREQ;
1192
1193 if (expect_false (close_fd < 0))
1194 {
1195 int pipefd [2];
1196
1197 if (
1198#ifdef _WIN32
1199 _pipe (pipefd, 1, _O_BINARY) < 0
1200#else
1201 pipe (pipefd) < 0
1202 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1203#endif
1204 || close (pipefd [1]) < 0
1205 )
1206 abort (); /*D*/
1207
1208 close_fd = pipefd [0];
1209 }
1210
1211 req->type = EIO_DUP2;
1212 req->int1 = close_fd;
1213 req->sv2 = newSVsv (fh);
1214 req->int2 = fd;
1215
1216 REQ_SEND;
1217}
1218
1219void
1220aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1221 PPCODE:
1222{
1223 int fd = s_fileno_croak (fh, 0);
1224 dREQ;
1225
1226 req->type = EIO_SEEK;
1227 req->sv1 = newSVsv (fh);
1228 req->int1 = fd;
1229 req->offs = SvVAL64 (offset);
1230 req->int2 = whence;
1231
1232 REQ_SEND;
1233}
1234
1235void
563aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1236aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
564 SV * fh
565 UV offset
566 IV length
567 SV * data
568 IV dataoffset
569 SV * callback
570 ALIAS: 1237 ALIAS:
571 aio_read = REQ_READ 1238 aio_read = EIO_READ
572 aio_write = REQ_WRITE 1239 aio_write = EIO_WRITE
573 PROTOTYPE: $$$$$;$
574 CODE: 1240 PPCODE:
575{ 1241{
576 aio_req req;
577 STRLEN svlen; 1242 STRLEN svlen;
1243 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
578 char *svptr = SvPVbyte (data, svlen); 1244 char *svptr = SvPVbyte (data, svlen);
579 1245 UV len = SvUV (length);
580 SvUPGRADE (data, SVt_PV);
581 SvPOK_on (data);
582 1246
583 if (dataoffset < 0) 1247 if (dataoffset < 0)
584 dataoffset += svlen; 1248 dataoffset += svlen;
585 1249
586 if (dataoffset < 0 || dataoffset > svlen) 1250 if (dataoffset < 0 || dataoffset > svlen)
587 croak ("data offset outside of string"); 1251 croak ("dataoffset outside of data scalar");
588 1252
589 if (ix == REQ_WRITE) 1253 if (ix == EIO_WRITE)
590 { 1254 {
591 /* write: check length and adjust. */ 1255 /* write: check length and adjust. */
592 if (length < 0 || length + dataoffset > svlen) 1256 if (!SvOK (length) || len + dataoffset > svlen)
593 length = svlen - dataoffset; 1257 len = svlen - dataoffset;
594 } 1258 }
595 else 1259 else
596 { 1260 {
597 /* read: grow scalar as necessary */ 1261 /* read: check type and grow scalar as necessary */
1262 SvUPGRADE (data, SVt_PV);
1263 if (SvLEN (data) >= SvCUR (data))
598 svptr = SvGROW (data, length + dataoffset); 1264 svptr = SvGROW (data, len + dataoffset + 1);
1265 else if (SvCUR (data) < len + dataoffset)
1266 croak ("length + dataoffset outside of scalar, and cannot grow");
599 } 1267 }
600
601 if (length < 0)
602 croak ("length must not be negative");
603 1268
604 { 1269 {
605 dREQ; 1270 dREQ;
606 1271
607 req->type = ix; 1272 req->type = ix;
608 req->fh = newSVsv (fh); 1273 req->sv1 = newSVsv (fh);
609 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1274 req->int1 = fd;
610 : IoOFP (sv_2io (fh))); 1275 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
611 req->offset = offset; 1276 req->size = len;
612 req->length = length;
613 req->data = SvREFCNT_inc (data); 1277 req->sv2 = SvREFCNT_inc (data);
614 req->dataptr = (char *)svptr + dataoffset; 1278 req->ptr2 = (char *)svptr + dataoffset;
615 req->callback = SvREFCNT_inc (callback); 1279 req->stroffset = dataoffset;
616 1280
617 send_req (req); 1281 if (!SvREADONLY (data))
1282 {
1283 SvREADONLY_on (data);
1284 req->flags |= FLAG_SV2_RO_OFF;
1285 }
1286
1287 REQ_SEND;
618 } 1288 }
619} 1289}
620 1290
621void 1291void
622aio_readahead(fh,offset,length,callback=&PL_sv_undef) 1292aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
623 SV * fh 1293 ALIAS:
624 UV offset 1294 aio_readlink = EIO_READLINK
625 IV length 1295 aio_realpath = EIO_REALPATH
626 SV * callback
627 PROTOTYPE: $$$;$
628 CODE: 1296 PPCODE:
629{ 1297{
1298 dREQ;
1299
1300 req->type = ix;
1301 req_set_path1 (req, pathname);
1302
1303 REQ_SEND;
1304}
1305
1306void
1307aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1308 PPCODE:
1309{
1310 int ifd = s_fileno_croak (in_fh , 0);
1311 int ofd = s_fileno_croak (out_fh, 1);
630 dREQ; 1312 dREQ;
631 1313
1314 req->type = EIO_SENDFILE;
1315 req->sv1 = newSVsv (out_fh);
1316 req->int1 = ofd;
1317 req->sv2 = newSVsv (in_fh);
1318 req->int2 = ifd;
1319 req->offs = in_offset;
1320 req->size = length;
1321
1322 REQ_SEND;
1323}
1324
1325void
1326aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1327 PPCODE:
1328{
1329 int fd = s_fileno_croak (fh, 0);
1330 dREQ;
1331
632 req->type = REQ_READAHEAD; 1332 req->type = EIO_READAHEAD;
633 req->fh = newSVsv (fh); 1333 req->sv1 = newSVsv (fh);
634 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1334 req->int1 = fd;
635 req->offset = offset; 1335 req->offs = offset;
636 req->length = length; 1336 req->size = length;
637 1337
638 send_req (req); 1338 REQ_SEND;
639} 1339}
640 1340
641void 1341void
642aio_stat(fh_or_path,callback=&PL_sv_undef) 1342aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
643 SV * fh_or_path
644 SV * callback
645 ALIAS: 1343 ALIAS:
646 aio_stat = REQ_STAT 1344 aio_stat = EIO_STAT
647 aio_lstat = REQ_LSTAT 1345 aio_lstat = EIO_LSTAT
1346 aio_statvfs = EIO_STATVFS
1347 PPCODE:
1348{
1349 dREQ;
1350
1351 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1352
1353 REQ_SEND;
1354}
1355
1356UV
1357major (UV dev)
1358 ALIAS:
1359 minor = 1
648 CODE: 1360 CODE:
1361 RETVAL = ix ? major (dev) : minor (dev);
1362 OUTPUT:
1363 RETVAL
1364
1365UV
1366makedev (UV maj, UV min)
1367 CODE:
1368 RETVAL = makedev (maj, min);
1369 OUTPUT:
1370 RETVAL
1371
1372void
1373aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1374 PPCODE:
649{ 1375{
650 dREQ; 1376 dREQ;
651 1377
652 New (0, req->statdata, 1, Stat_t); 1378 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
653 if (!req->statdata) 1379 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
654 croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)"); 1380 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
655 1381
656 if (SvPOK (fh_or_path)) 1382 REQ_SEND;
657 {
658 req->type = ix;
659 req->data = newSVsv (fh_or_path);
660 req->dataptr = SvPVbyte_nolen (req->data);
661 }
662 else
663 {
664 req->type = REQ_FSTAT;
665 req->fh = newSVsv (fh_or_path);
666 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
667 }
668
669 send_req (req);
670} 1383}
671 1384
672void 1385void
1386aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1387 PPCODE:
1388{
1389 dREQ;
1390
1391 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1392 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1393
1394 REQ_SEND;
1395}
1396
1397void
1398aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1399 PPCODE:
1400{
1401 dREQ;
1402
1403 req->int2 = mode;
1404 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1405
1406 REQ_SEND;
1407}
1408
1409void
1410aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1411 PPCODE:
1412{
1413 dREQ;
1414
1415 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1416 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1417 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1418
1419 REQ_SEND;
1420}
1421
1422void
1423aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1424 PPCODE:
1425{
1426 dREQ;
1427
1428 req->type = EIO_READDIR;
1429 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1430
1431 if (flags & EIO_READDIR_DENTS)
1432 req->int1 |= EIO_READDIR_CUSTOM2;
1433
1434 req_set_path1 (req, pathname);
1435
1436 REQ_SEND;
1437}
1438
1439void
1440aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1441 PPCODE:
1442{
1443 dREQ;
1444
1445 req->type = EIO_MKDIR;
1446 req->int2 = mode;
1447 req_set_path1 (req, pathname);
1448
1449 REQ_SEND;
1450}
1451
1452void
673aio_unlink(pathname,callback=&PL_sv_undef) 1453aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
674 SV * pathname
675 SV * callback
676 ALIAS: 1454 ALIAS:
677 aio_unlink = REQ_UNLINK 1455 aio_unlink = EIO_UNLINK
678 aio_rmdir = REQ_RMDIR 1456 aio_rmdir = EIO_RMDIR
1457 aio_readdir = EIO_READDIR
679 CODE: 1458 PPCODE:
680{ 1459{
681 dREQ; 1460 dREQ;
682 1461
683 req->type = ix; 1462 req->type = ix;
684 req->data = newSVsv (pathname); 1463 req_set_path1 (req, pathname);
685 req->dataptr = SvPVbyte_nolen (req->data);
686
687 send_req (req);
688}
689 1464
1465 REQ_SEND;
1466}
1467
690void 1468void
691aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1469aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
692 SV * oldpath 1470 ALIAS:
693 SV * newpath 1471 aio_link = EIO_LINK
694 SV * callback 1472 aio_symlink = EIO_SYMLINK
1473 aio_rename = EIO_RENAME
695 CODE: 1474 PPCODE:
696{ 1475{
1476 eio_wd wd2 = 0;
697 dREQ; 1477 dREQ;
698 1478
699 req->type = REQ_SYMLINK; 1479 req->type = ix;
700 req->fh = newSVsv (oldpath); 1480 req_set_path1 (req, oldpath);
701 req->data2ptr = SvPVbyte_nolen (req->fh); 1481 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
702 req->data = newSVsv (newpath); 1482 req->int3 = (long)wd2;
703 req->dataptr = SvPVbyte_nolen (req->data);
704 1483
705 send_req (req); 1484 REQ_SEND;
706} 1485}
707 1486
708void 1487void
709flush() 1488aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
710 PROTOTYPE: 1489 PPCODE:
1490{
1491 dREQ;
1492
1493 req->type = EIO_MKNOD;
1494 req->int2 = (mode_t)mode;
1495 req->offs = dev;
1496 req_set_path1 (req, pathname);
1497
1498 REQ_SEND;
1499}
1500
1501void
1502aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1503 ALIAS:
1504 aio_mtouch = EIO_MTOUCH
1505 aio_msync = EIO_MSYNC
1506 PPCODE:
1507{
1508 STRLEN svlen;
1509 char *svptr = SvPVbyte (data, svlen);
1510 UV len = SvUV (length);
1511
1512 if (offset < 0)
1513 offset += svlen;
1514
1515 if (offset < 0 || offset > svlen)
1516 croak ("offset outside of scalar");
1517
1518 if (!SvOK (length) || len + offset > svlen)
1519 len = svlen - offset;
1520
1521 {
1522 dREQ;
1523
1524 req->type = ix;
1525 req->sv2 = SvREFCNT_inc (data);
1526 req->ptr2 = (char *)svptr + offset;
1527 req->size = len;
1528 req->int1 = flags;
1529
1530 REQ_SEND;
1531 }
1532}
1533
1534void
1535aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1536 PPCODE:
1537{
1538 STRLEN svlen;
1539 char *svptr = SvPVbyte (data, svlen);
1540 UV len = SvUV (length);
1541
1542 if (offset < 0)
1543 offset += svlen;
1544
1545 if (offset < 0 || offset > svlen)
1546 croak ("offset outside of scalar");
1547
1548 if (!SvOK (length) || len + offset > svlen)
1549 len = svlen - offset;
1550
1551 {
1552 dREQ;
1553
1554 req->type = EIO_MLOCK;
1555 req->sv2 = SvREFCNT_inc (data);
1556 req->ptr2 = (char *)svptr + offset;
1557 req->size = len;
1558
1559 REQ_SEND;
1560 }
1561}
1562
1563void
1564aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1565 PPCODE:
1566{
1567 dREQ;
1568
1569 req->type = EIO_MLOCKALL;
1570 req->int1 = flags;
1571
1572 REQ_SEND;
1573}
1574
1575void
1576aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1577 PPCODE:
1578{
1579 int fd = s_fileno_croak (fh, 0);
1580 dREQ;
1581
1582 req->type = EIO_CUSTOM;
1583 req->sv1 = newSVsv (fh);
1584 req->int1 = fd;
1585
1586 req->feed = fiemap;
1587#if HAVE_FIEMAP
1588 /* keep our fingers crossed that the next two types are 64 bit */
1589 req->offs = start;
1590 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1591 req->int2 = flags;
1592 req->int3 = SvOK (count) ? SvIV (count) : -1;
1593#endif
1594
1595 REQ_SEND;
1596}
1597
1598void
1599aio_busy (double delay, SV *callback=&PL_sv_undef)
1600 PPCODE:
1601{
1602 dREQ;
1603
1604 req->type = EIO_BUSY;
1605 req->nv1 = delay < 0. ? 0. : delay;
1606
1607 REQ_SEND;
1608}
1609
1610void
1611aio_group (SV *callback=&PL_sv_undef)
1612 PPCODE:
1613{
1614 dREQ;
1615
1616 req->type = EIO_GROUP;
1617
1618 req_submit (req);
1619 XPUSHs (req_sv (req, aio_grp_stash));
1620}
1621
1622void
1623aio_nop (SV *callback=&PL_sv_undef)
1624 ALIAS:
1625 aio_nop = EIO_NOP
1626 aio_sync = EIO_SYNC
1627 PPCODE:
1628{
1629 dREQ;
1630
1631 req->type = ix;
1632
1633 REQ_SEND;
1634}
1635
1636int
1637aioreq_pri (int pri = 0)
711 CODE: 1638 CODE:
1639 RETVAL = next_pri;
1640 if (items > 0)
1641 {
1642 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1643 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1644 next_pri = pri;
1645 }
1646 OUTPUT:
1647 RETVAL
1648
1649void
1650aioreq_nice (int nice = 0)
1651 CODE:
1652 nice = next_pri - nice;
1653 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1654 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1655 next_pri = nice;
1656
1657void
1658flush ()
1659 CODE:
712 while (nreqs) 1660 while (eio_nreqs ())
713 { 1661 {
714 poll_wait (); 1662 poll_wait ();
715 poll_cb (); 1663 poll_cb ();
716 } 1664 }
717 1665
718void 1666int
719poll() 1667poll ()
720 PROTOTYPE:
721 CODE: 1668 CODE:
722 if (nreqs)
723 {
724 poll_wait (); 1669 poll_wait ();
725 poll_cb (); 1670 RETVAL = poll_cb ();
726 }
727
728int
729poll_fileno()
730 PROTOTYPE:
731 CODE:
732 RETVAL = respipe [0];
733 OUTPUT: 1671 OUTPUT:
734 RETVAL 1672 RETVAL
735 1673
736int 1674int
1675poll_fileno ()
1676 CODE:
1677 RETVAL = s_epipe_fd (&respipe);
1678 OUTPUT:
1679 RETVAL
1680
1681int
737poll_cb(...) 1682poll_cb (...)
738 PROTOTYPE: 1683 PROTOTYPE:
739 CODE: 1684 CODE:
740 RETVAL = poll_cb (); 1685 RETVAL = poll_cb ();
741 OUTPUT: 1686 OUTPUT:
742 RETVAL 1687 RETVAL
743 1688
744void 1689void
745poll_wait() 1690poll_wait ()
746 PROTOTYPE:
747 CODE: 1691 CODE:
748 if (nreqs)
749 poll_wait (); 1692 poll_wait ();
750 1693
751int 1694int
752nreqs() 1695nreqs ()
753 PROTOTYPE:
754 CODE: 1696 CODE:
755 RETVAL = nreqs; 1697 RETVAL = eio_nreqs ();
756 OUTPUT: 1698 OUTPUT:
757 RETVAL 1699 RETVAL
758 1700
1701int
1702nready ()
1703 CODE:
1704 RETVAL = eio_nready ();
1705 OUTPUT:
1706 RETVAL
1707
1708int
1709npending ()
1710 CODE:
1711 RETVAL = eio_npending ();
1712 OUTPUT:
1713 RETVAL
1714
1715int
1716nthreads ()
1717 CODE:
1718 RETVAL = eio_nthreads ();
1719 OUTPUT:
1720 RETVAL
1721
1722int
1723fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1724 CODE:
1725 RETVAL = posix_fadvise (fh, offset, length, advice);
1726 OUTPUT:
1727 RETVAL
1728
1729IV
1730sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1731 CODE:
1732 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1733 OUTPUT:
1734 RETVAL
1735
1736void
1737mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1738 PPCODE:
1739 sv_unmagic (scalar, MMAP_MAGIC);
1740{
1741 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1742 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1743 if (addr == (void *)-1)
1744 XSRETURN_NO;
1745
1746 sv_force_normal (scalar);
1747
1748 /* we store the length in mg_obj, as namlen is I32 :/ */
1749 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1750 ->mg_obj = (SV *)length;
1751
1752 SvUPGRADE (scalar, SVt_PV); /* nop... */
1753
1754 if (!(prot & PROT_WRITE))
1755 SvREADONLY_on (scalar);
1756
1757 if (SvLEN (scalar))
1758 Safefree (SvPVX (scalar));
1759
1760 SvPVX (scalar) = (char *)addr;
1761 SvCUR_set (scalar, length);
1762 SvLEN_set (scalar, 0);
1763 SvPOK_only (scalar);
1764
1765 XSRETURN_YES;
1766}
1767
1768void
1769munmap (SV *scalar)
1770 CODE:
1771 sv_unmagic (scalar, MMAP_MAGIC);
1772
1773int
1774madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1775 ALIAS:
1776 mprotect = 1
1777 CODE:
1778{
1779 STRLEN svlen;
1780 void *addr = SvPVbyte (scalar, svlen);
1781 size_t len = SvUV (length);
1782
1783 if (offset < 0)
1784 offset += svlen;
1785
1786 if (offset < 0 || offset > svlen)
1787 croak ("offset outside of scalar");
1788
1789 if (!SvOK (length) || len + offset > svlen)
1790 len = svlen - offset;
1791
1792 addr = (void *)(((intptr_t)addr) + offset);
1793 eio_page_align (&addr, &len);
1794
1795 switch (ix)
1796 {
1797 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1798 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1799 }
1800}
1801 OUTPUT:
1802 RETVAL
1803
1804int
1805munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1806 CODE:
1807{
1808 STRLEN svlen;
1809 void *addr = SvPVbyte (scalar, svlen);
1810 size_t len = SvUV (length);
1811
1812 if (offset < 0)
1813 offset += svlen;
1814
1815 if (offset < 0 || offset > svlen)
1816 croak ("offset outside of scalar");
1817
1818 if (!SvOK (length) || len + offset > svlen)
1819 len = svlen - offset;
1820
1821 addr = (void *)(((intptr_t)addr) + offset);
1822 eio_page_align (&addr, &len);
1823#if _POSIX_MEMLOCK_RANGE
1824 RETVAL = munlock (addr, len);
1825#else
1826 RETVAL = EIO_ENOSYS ();
1827#endif
1828}
1829 OUTPUT:
1830 RETVAL
1831
1832int
1833munlockall ()
1834 CODE:
1835#if _POSIX_MEMLOCK
1836 munlockall ();
1837#else
1838 RETVAL = EIO_ENOSYS ();
1839#endif
1840 OUTPUT:
1841 RETVAL
1842
1843int
1844splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1845 CODE:
1846{
1847#if HAVE_LINUX_SPLICE
1848 loff_t off_in_, off_out_;
1849 RETVAL = splice (
1850 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1851 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1852 length, flags
1853 );
1854#else
1855 RETVAL = EIO_ENOSYS ();
1856#endif
1857}
1858 OUTPUT:
1859 RETVAL
1860
1861int
1862tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1863 CODE:
1864#if HAVE_LINUX_SPLICE
1865 RETVAL = tee (rfh, wfh, length, flags);
1866#else
1867 RETVAL = EIO_ENOSYS ();
1868#endif
1869 OUTPUT:
1870 RETVAL
1871
1872void _on_next_submit (SV *cb)
1873 CODE:
1874 SvREFCNT_dec (on_next_submit);
1875 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1876
1877PROTOTYPES: DISABLE
1878
1879MODULE = IO::AIO PACKAGE = IO::AIO::WD
1880
1881BOOT:
1882{
1883 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1884 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1885}
1886
1887void
1888DESTROY (SV *self)
1889 CODE:
1890{
1891 aio_wd wd = SvAIO_WD (self);
1892#if HAVE_AT
1893 {
1894 SV *callback = &PL_sv_undef;
1895 dREQ; /* clobbers next_pri :/ */
1896 next_pri = req->pri; /* restore next_pri */
1897 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1898 req->type = EIO_WD_CLOSE;
1899 req->wd = wd;
1900 REQ_SEND;
1901 }
1902#else
1903 eio_wd_close_sync (wd);
1904#endif
1905}
1906
1907MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1908
1909void
1910cancel (aio_req_ornot req)
1911 CODE:
1912 eio_cancel (req);
1913
1914void
1915cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1916 PPCODE:
1917{
1918 if (GIMME_V != G_VOID)
1919 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1920
1921 if (items > 1)
1922 {
1923 SV *cb_cv =get_cb (callback);
1924
1925 SvREFCNT_dec (req->callback);
1926 req->callback = SvREFCNT_inc (cb_cv);
1927 }
1928}
1929
1930MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1931
1932void
1933add (aio_req grp, ...)
1934 PPCODE:
1935{
1936 int i;
1937
1938 if (grp->int1 == 2)
1939 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1940
1941 for (i = 1; i < items; ++i )
1942 {
1943 aio_req req;
1944
1945 if (GIMME_V != G_VOID)
1946 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1947
1948 req = SvAIO_REQ (ST (i));
1949
1950 if (req)
1951 eio_grp_add (grp, req);
1952 }
1953}
1954
1955void
1956cancel_subs (aio_req_ornot req)
1957 CODE:
1958 req_cancel_subs (req);
1959
1960void
1961result (aio_req grp, ...)
1962 CODE:
1963{
1964 int i;
1965 AV *av;
1966
1967 grp->errorno = errno;
1968
1969 av = newAV ();
1970 av_extend (av, items - 1);
1971
1972 for (i = 1; i < items; ++i )
1973 av_push (av, newSVsv (ST (i)));
1974
1975 SvREFCNT_dec (grp->sv1);
1976 grp->sv1 = (SV *)av;
1977}
1978
1979void
1980errno (aio_req grp, int errorno = errno)
1981 CODE:
1982 grp->errorno = errorno;
1983
1984void
1985limit (aio_req grp, int limit)
1986 CODE:
1987 eio_grp_limit (grp, limit);
1988
1989void
1990feed (aio_req grp, SV *callback=&PL_sv_undef)
1991 CODE:
1992{
1993 SvREFCNT_dec (grp->sv2);
1994 grp->sv2 = newSVsv (callback);
1995 grp->feed = aio_grp_feed;
1996
1997 if (grp->int2 <= 0)
1998 grp->int2 = 2;
1999
2000 eio_grp_limit (grp, grp->int2);
2001}
2002

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines