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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.10 by root, Wed Jul 13 00:13:09 2005 UTC vs.
Revision 1.230 by root, Tue Jun 3 01:30:33 2014 UTC

1#include "libeio/xthread.h"
2
3#include <errno.h>
4
1#include "EXTERN.h" 5#include "EXTERN.h"
2#include "perl.h" 6#include "perl.h"
3#include "XSUB.h" 7#include "XSUB.h"
4 8
5#define _XOPEN_SOURCE 500 9#include "schmorp.h"
6 10
11#include <stddef.h>
12#include <stdlib.h>
13#include <errno.h>
7#include <sys/types.h> 14#include <sys/types.h>
8#include <sys/stat.h> 15#include <sys/stat.h>
9
10#include <unistd.h> 16#include <limits.h>
11#include <fcntl.h> 17#include <fcntl.h>
12#include <signal.h>
13#include <sched.h> 18#include <sched.h>
14#if __linux 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
15#include <sys/syscall.h> 21# include <sys/mman.h>
22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. on't complain if this fails for you.
27 */
28#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
29# include <linux/fs.h>
30# ifdef FS_IOC_FIEMAP
31# include <linux/types.h>
32# include <linux/fiemap.h>
33# define HAVE_FIEMAP 1
16#endif 34# endif
35#endif
17 36
18#include <pthread.h> 37/* perl namespace pollution */
38#undef VERSION
19 39
20typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 40/* perl stupidly overrides readdir and maybe others */
21typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 41/* with thread-unsafe versions, imagine that :( */
22typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 42#undef readdir
43#undef opendir
44#undef closedir
23 45
24#if __ia64 46#ifdef _WIN32
25# define STACKSIZE 65536 47
48 // perl overrides all those nice libc functions
49
50 #undef malloc
51 #undef free
52 #undef open
53 #undef read
54 #undef write
55 #undef send
56 #undef recv
57 #undef stat
58 #undef lstat
59 #undef fstat
60 #undef truncate
61 #undef ftruncate
62 #undef open
63 #undef link
64 #undef close
65 #undef unlink
66 #undef mkdir
67 #undef rmdir
68 #undef rename
69 #undef lseek
70 #undef opendir
71 #undef readdir
72 #undef closedir
73 #undef chmod
74 #undef fchmod
75 #undef dup
76 #undef dup2
77 #undef abort
78 #undef pipe
79
80 #define EIO_STRUCT_STAT struct _stati64
81 #define EIO_STRUCT_STATI64
82
26#else 83#else
27# define STACKSIZE 4096 84
85 #include <sys/time.h>
86 #include <sys/select.h>
87 #include <unistd.h>
88 #include <utime.h>
89 #include <signal.h>
90
91 #define EIO_STRUCT_STAT Stat_t
92
93#endif
94
95/*****************************************************************************/
96
97#if __GNUC__ >= 3
98# define expect(expr,value) __builtin_expect ((expr),(value))
99#else
100# define expect(expr,value) (expr)
101#endif
102
103#define expect_false(expr) expect ((expr) != 0, 0)
104#define expect_true(expr) expect ((expr) != 0, 1)
105
106/*****************************************************************************/
107
108typedef SV SV8; /* byte-sv, used for argument-checking */
109typedef int aio_rfd; /* read file desriptor */
110typedef int aio_wfd; /* write file descriptor */
111
112static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
113
114#define EIO_REQ_MEMBERS \
115 SV *callback; \
116 SV *sv1, *sv2; \
117 SV *sv3, *sv4; \
118 STRLEN stroffset; \
119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/config.h"
124#include "libeio/eio.h"
125
126static int req_invoke (eio_req *req);
127#define EIO_FINISH(req) req_invoke (req)
128static void req_destroy (eio_req *grp);
129#define EIO_DESTROY(req) req_destroy (req)
130
131#include "libeio/eio.c"
132
133#if !HAVE_POSIX_FADVISE
134# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#if !HAVE_POSIX_MADVISE
138# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
139#endif
140
141#ifndef MAP_ANONYMOUS
142# ifdef MAP_ANON
143# define MAP_ANONYMOUS MAP_ANON
144# else
145# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
28#endif 146# endif
147#endif
29 148
30enum { 149/* defines all sorts of constants to 0 unless they are already defined */
31 REQ_QUIT, 150#include "def0.h"
32 REQ_OPEN, REQ_CLOSE,
33 REQ_READ, REQ_WRITE, REQ_READAHEAD,
34 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,
35 REQ_FSYNC, REQ_FDATASYNC,
36};
37 151
38typedef struct aio_cb { 152#ifndef makedev
39 struct aio_cb *volatile next; 153# define makedev(maj,min) (((maj) << 8) | (min))
154#endif
155#ifndef major
156# define major(dev) ((dev) >> 8)
157#endif
158#ifndef minor
159# define minor(dev) ((dev) & 0xff)
160#endif
40 161
41 int type; 162#if PAGESIZE <= 0
163# define PAGESIZE sysconf (_SC_PAGESIZE)
164#endif
42 165
43 int fd; 166/*****************************************************************************/
44 off_t offset;
45 size_t length;
46 ssize_t result;
47 mode_t mode; /* open */
48 int errorno;
49 SV *data, *callback;
50 void *dataptr;
51 STRLEN dataoffset;
52
53 Stat_t *statdata;
54} aio_cb;
55
56typedef aio_cb *aio_req;
57
58static int started;
59static int nreqs;
60static int max_outstanding = 1<<30;
61static int respipe [2];
62
63static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
64static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
65static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
66
67static volatile aio_req reqs, reqe; /* queue start, queue end */
68static volatile aio_req ress, rese; /* queue start, queue end */
69 167
70static void 168static void
71poll_wait () 169fiemap (eio_req *req)
72{ 170{
73 if (!nreqs) 171 req->result = -1;
172
173#if HAVE_FIEMAP
174 /* assume some c99 */
175 struct fiemap *fiemap = 0;
176 size_t end_offset;
177 int count = req->int3;
178
179 req->flags |= EIO_FLAG_PTR1_FREE;
180
181 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
182 /* increase in 3.5kb steps */
183 if (count < 0)
184 count = 8;
185
186 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
187 errno = ENOMEM;
188 if (!fiemap)
74 return; 189 return;
75 190
76 fd_set rfd; 191 req->ptr1 = fiemap;
77 FD_ZERO(&rfd);
78 FD_SET(respipe [0], &rfd);
79 192
80 select (respipe [0] + 1, &rfd, 0, 0, 0); 193 fiemap->fm_start = req->offs;
81} 194 fiemap->fm_length = req->size;
195 fiemap->fm_flags = req->int2;
196 fiemap->fm_extent_count = count;
82 197
83static int 198 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
84poll_cb () 199 return;
85{ 200
86 dSP; 201 if (req->int3 >= 0 /* not autosizing */
87 int count = 0; 202 || !fiemap->fm_mapped_extents /* no more extents */
88 aio_req req; 203 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
89 204 goto done;
90 { 205
91 /* read and signals sent by the worker threads */ 206 /* else we have to loop -
92 char buf [32]; 207 * it would be tempting (actually I tried that first) to just query the
93 while (read (respipe [0], buf, 32) > 0) 208 * number of extents needed, but linux often feels like not returning all
94 ; 209 * extents, without telling us it left any out. this complicates
95 } 210 * this quite a bit.
211 */
212
213 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
96 214
97 for (;;) 215 for (;;)
98 { 216 {
99 pthread_mutex_lock (&reslock); 217 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
218 char scratch[3072];
219 struct fiemap *incmap = (struct fiemap *)scratch;
100 220
101 req = ress; 221 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
222 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
223 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
224 incmap->fm_flags = fiemap->fm_flags;
225 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
102 226
103 if (ress) 227 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
228 return;
229
230 if (!incmap->fm_mapped_extents)
231 goto done;
232
233 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
234 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
235 errno = ENOMEM;
236 if (!fiemap)
237 return;
238
239 req->ptr1 = fiemap;
240
241 for (count = 0; count < incmap->fm_mapped_extents; ++count)
104 { 242 {
105 ress = ress->next; 243 struct fiemap_extent *e = incmap->fm_extents + count;
106 if (!ress) rese = 0; 244
245 if (e->fe_logical + e->fe_length >= end_offset)
246 goto done;
247
248 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
249
250 if (e->fe_flags & FIEMAP_EXTENT_LAST)
251 goto done;
252
107 } 253 }
254 }
108 255
109 pthread_mutex_unlock (&reslock); 256done:
257 req->result = 0;
110 258
111 if (!req) 259#else
112 break; 260 errno = ENOSYS;
261#endif
262}
113 263
114 nreqs--; 264/*****************************************************************************/
115 265
116 if (req->type == REQ_QUIT) 266enum {
117 started--; 267 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
118 else 268};
269
270typedef eio_req *aio_req;
271typedef eio_req *aio_req_ornot;
272typedef eio_wd aio_wd;
273
274static SV *on_next_submit;
275static int next_pri = EIO_PRI_DEFAULT;
276static int max_outstanding;
277
278static s_epipe respipe;
279
280static void req_destroy (aio_req req);
281static void req_cancel (aio_req req);
282
283static void
284want_poll (void)
285{
286 /* write a dummy byte to the pipe so fh becomes ready */
287 s_epipe_signal (&respipe);
288}
289
290static void
291done_poll (void)
292{
293 /* read any signals sent by the worker threads */
294 s_epipe_drain (&respipe);
295}
296
297/* must be called at most once */
298static SV *
299req_sv (aio_req req, HV *stash)
300{
301 if (!req->self)
302 {
303 req->self = (SV *)newHV ();
304 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
305 }
306
307 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
308}
309
310static SV *
311newSVaio_wd (aio_wd wd)
312{
313 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
314}
315
316static aio_req
317SvAIO_REQ (SV *sv)
318{
319 MAGIC *mg;
320
321 if (!SvROK (sv)
322 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
323 || (SvSTASH (SvRV (sv)) != aio_grp_stash
324 && SvSTASH (SvRV (sv)) != aio_req_stash
325 && !sv_derived_from (sv, "IO::AIO::REQ")))
326 croak ("object of class IO::AIO::REQ expected");
327
328 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
329
330 return mg ? (aio_req)mg->mg_ptr : 0;
331}
332
333static aio_wd
334SvAIO_WD (SV *sv)
335{
336 if (!SvROK (sv)
337 || SvTYPE (SvRV (sv)) != SVt_PVMG
338 || SvSTASH (SvRV (sv)) != aio_wd_stash)
339 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
340
341 return (aio_wd)(long)SvIVX (SvRV (sv));
342}
343
344static void
345aio_grp_feed (aio_req grp)
346{
347 if (grp->sv2 && SvOK (grp->sv2))
348 {
349 dSP;
350
351 ENTER;
352 SAVETMPS;
353 PUSHMARK (SP);
354 XPUSHs (req_sv (grp, aio_grp_stash));
355 PUTBACK;
356 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
357 SPAGAIN;
358 FREETMPS;
359 LEAVE;
360 }
361}
362
363static void
364req_submit (eio_req *req)
365{
366 eio_submit (req);
367
368 if (expect_false (on_next_submit))
369 {
370 dSP;
371 SV *cb = sv_2mortal (on_next_submit);
372
373 on_next_submit = 0;
374
375 PUSHMARK (SP);
376 PUTBACK;
377 call_sv (cb, G_DISCARD | G_EVAL);
378 }
379}
380
381static int
382req_invoke (eio_req *req)
383{
384 if (req->flags & FLAG_SV2_RO_OFF)
385 SvREADONLY_off (req->sv2);
386
387 if (!EIO_CANCELLED (req) && req->callback)
388 {
389 dSP;
390 static SV *sv_result_cache; /* caches the result integer SV */
391 SV *sv_result;
392
393 ENTER;
394 SAVETMPS;
395 PUSHMARK (SP);
396 EXTEND (SP, 1);
397
398 /* do not recreate the result IV from scratch each time */
399 if (expect_true (sv_result_cache))
119 { 400 {
120 int errorno = errno; 401 sv_result = sv_result_cache; sv_result_cache = 0;
121 errno = req->errorno; 402 SvIV_set (sv_result, req->result);
122 403 SvIOK_only (sv_result);
123 if (req->type == REQ_READ)
124 SvCUR_set (req->data, req->dataoffset
125 + req->result > 0 ? req->result : 0);
126
127 if (req->data)
128 SvREFCNT_dec (req->data);
129
130 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
131 {
132 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
133 PL_laststatval = req->result;
134 PL_statcache = *(req->statdata);
135
136 Safefree (req->statdata);
137 }
138
139 PUSHMARK (SP);
140 XPUSHs (sv_2mortal (newSViv (req->result)));
141
142 if (req->type == REQ_OPEN)
143 {
144 /* convert fd to fh */
145 SV *fh;
146
147 PUTBACK;
148 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
149 SPAGAIN;
150
151 fh = POPs;
152
153 PUSHMARK (SP);
154 XPUSHs (fh);
155 }
156
157 if (SvOK (req->callback))
158 {
159 PUTBACK;
160 call_sv (req->callback, G_VOID | G_EVAL);
161 SPAGAIN;
162 }
163
164 if (req->callback)
165 SvREFCNT_dec (req->callback);
166
167 errno = errorno;
168 count++;
169 }
170
171 Safefree (req);
172 }
173
174 return count;
175}
176
177static void *aio_proc(void *arg);
178
179static void
180start_thread (void)
181{
182 sigset_t fullsigset, oldsigset;
183 pthread_t tid;
184 pthread_attr_t attr;
185
186 pthread_attr_init (&attr);
187 pthread_attr_setstacksize (&attr, STACKSIZE);
188 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
189
190 sigfillset (&fullsigset);
191 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
192
193 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
194 started++;
195
196 sigprocmask (SIG_SETMASK, &oldsigset, 0);
197}
198
199static void
200send_req (aio_req req)
201{
202 nreqs++;
203
204 pthread_mutex_lock (&reqlock);
205
206 req->next = 0;
207
208 if (reqe)
209 {
210 reqe->next = req;
211 reqe = req;
212 }
213 else
214 reqe = reqs = req;
215
216 pthread_cond_signal (&reqwait);
217 pthread_mutex_unlock (&reqlock);
218
219 while (nreqs > max_outstanding)
220 {
221 poll_wait ();
222 poll_cb ();
223 }
224}
225
226static void
227end_thread (void)
228{
229 aio_req req;
230 New (0, req, 1, aio_cb);
231 req->type = REQ_QUIT;
232
233 send_req (req);
234}
235
236static void
237read_write (int dowrite, int fd, off_t offset, size_t length,
238 SV *data, STRLEN dataoffset, SV *callback)
239{
240 aio_req req;
241 STRLEN svlen;
242 char *svptr = SvPV (data, svlen);
243
244 SvUPGRADE (data, SVt_PV);
245 SvPOK_on (data);
246
247 if (dataoffset < 0)
248 dataoffset += svlen;
249
250 if (dataoffset < 0 || dataoffset > svlen)
251 croak ("data offset outside of string");
252
253 if (dowrite)
254 {
255 /* write: check length and adjust. */
256 if (length < 0 || length + dataoffset > svlen)
257 length = svlen - dataoffset;
258 }
259 else
260 {
261 /* read: grow scalar as necessary */
262 svptr = SvGROW (data, length + dataoffset);
263 }
264
265 if (length < 0)
266 croak ("length must not be negative");
267
268 Newz (0, req, 1, aio_cb);
269
270 if (!req)
271 croak ("out of memory during aio_req allocation");
272
273 req->type = dowrite ? REQ_WRITE : REQ_READ;
274 req->fd = fd;
275 req->offset = offset;
276 req->length = length;
277 req->data = SvREFCNT_inc (data);
278 req->dataptr = (char *)svptr + dataoffset;
279 req->callback = SvREFCNT_inc (callback);
280
281 send_req (req);
282}
283
284static void *
285aio_proc (void *thr_arg)
286{
287 aio_req req;
288 int type;
289
290 do
291 {
292 pthread_mutex_lock (&reqlock);
293
294 for (;;)
295 {
296 req = reqs;
297
298 if (reqs)
299 {
300 reqs = reqs->next;
301 if (!reqs) reqe = 0;
302 }
303
304 if (req)
305 break;
306
307 pthread_cond_wait (&reqwait, &reqlock);
308 }
309
310 pthread_mutex_unlock (&reqlock);
311
312 errno = 0; /* strictly unnecessary */
313
314 type = req->type;
315
316 switch (type)
317 {
318 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
319 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
320#if SYS_readahead
321 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
322#else
323 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
324#endif
325
326 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
327 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
328 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
329
330 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
331 case REQ_CLOSE: req->result = close (req->fd); break;
332 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
333
334 case REQ_FSYNC: req->result = fsync (req->fd); break;
335 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
336
337 case REQ_QUIT:
338 break;
339
340 default:
341 req->result = ENOSYS;
342 break;
343 }
344
345 req->errorno = errno;
346
347 pthread_mutex_lock (&reslock);
348
349 req->next = 0;
350
351 if (rese)
352 {
353 rese->next = req;
354 rese = req;
355 } 404 }
356 else 405 else
357 { 406 {
358 rese = ress = req; 407 sv_result = newSViv (req->result);
359 408 SvREADONLY_on (sv_result);
360 /* write a dummy byte to the pipe so fh becomes ready */
361 write (respipe [1], &respipe, 1);
362 } 409 }
363 410
364 pthread_mutex_unlock (&reslock); 411 switch (req->type)
412 {
413 case EIO_WD_OPEN:
414 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
415 break;
416
417 case EIO_READDIR:
418 {
419 SV *rv = &PL_sv_undef;
420
421 if (req->result >= 0)
422 {
423 int i;
424 char *names = (char *)req->ptr2;
425 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
426 AV *av = newAV ();
427
428 av_extend (av, req->result - 1);
429
430 for (i = 0; i < req->result; ++i)
431 {
432 if (req->int1 & EIO_READDIR_DENTS)
433 {
434 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
435
436 if (req->int1 & EIO_READDIR_CUSTOM2)
437 {
438 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
439 AV *avent = newAV ();
440
441 av_extend (avent, 2);
442
443 if (!sv_type [ent->type])
444 {
445 sv_type [ent->type] = newSViv (ent->type);
446 SvREADONLY_on (sv_type [ent->type]);
447 }
448
449 av_store (avent, 0, namesv);
450 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
451 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
452
453 av_store (av, i, newRV_noinc ((SV *)avent));
454 }
455 else
456 av_store (av, i, namesv);
457
458 ++ent;
459 }
460 else
461 {
462 SV *name = newSVpv (names, 0);
463 av_store (av, i, name);
464 names += SvCUR (name) + 1;
465 }
466 }
467
468 rv = sv_2mortal (newRV_noinc ((SV *)av));
469 }
470
471 PUSHs (rv);
472
473 if (req->int1 & EIO_READDIR_CUSTOM1)
474 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
475 }
476 break;
477
478 case EIO_OPEN:
479 {
480 /* convert fd to fh */
481 SV *fh = &PL_sv_undef;
482
483 if (req->result >= 0)
484 {
485 GV *gv = (GV *)sv_newmortal ();
486 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
487 char sym [64];
488 int symlen;
489
490 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
491 gv_init (gv, aio_stash, sym, symlen, 0);
492
493 symlen = snprintf (
494 sym,
495 sizeof (sym),
496 "%s&=%d",
497 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
498 (int)req->result
499 );
500
501 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
502 fh = (SV *)gv;
503 }
504
505 PUSHs (fh);
506 }
507 break;
508
509 case EIO_STATVFS:
510 case EIO_FSTATVFS:
511 {
512 SV *rv = &PL_sv_undef;
513
514#ifndef _WIN32
515 if (req->result >= 0)
516 {
517 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
518 HV *hv = newHV ();
519 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
520 * chooses to make it a struct.
521 */
522 unsigned long fsid = 0;
523 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
524
525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
526
527 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
528 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
529 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
530 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
531 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
532 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
533 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
534 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
535 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
536 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
537 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
538 }
539#endif
540
541 PUSHs (rv);
542 }
543
544 break;
545
546 case EIO_GROUP:
547 req->int1 = 2; /* mark group as finished */
548
549 if (req->sv1)
550 {
551 int i;
552 AV *av = (AV *)req->sv1;
553
554 EXTEND (SP, AvFILL (av) + 1);
555 for (i = 0; i <= AvFILL (av); ++i)
556 PUSHs (*av_fetch (av, i, 0));
557 }
558 break;
559
560 case EIO_NOP:
561 case EIO_BUSY:
562 break;
563
564 case EIO_READLINK:
565 case EIO_REALPATH:
566 if (req->result > 0)
567 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
568 break;
569
570 case EIO_STAT:
571 case EIO_LSTAT:
572 case EIO_FSTAT:
573 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
574
575 if (!(PL_laststatval = req->result))
576 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
577 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
578
579 PUSHs (sv_result);
580 break;
581
582 case EIO_SEEK:
583 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
584 break;
585
586 case EIO_READ:
587 {
588 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
589 *SvEND (req->sv2) = 0;
590 SvPOK_only (req->sv2);
591 SvSETMAGIC (req->sv2);
592 PUSHs (sv_result);
593 }
594 break;
595
596 case EIO_CUSTOM:
597 if (req->feed == fiemap)
598 {
599#if HAVE_FIEMAP
600 if (!req->result)
601 {
602 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
603
604 if (fiemap->fm_extent_count)
605 {
606 AV *av = newAV ();
607 int i;
608
609 while (fiemap->fm_mapped_extents)
610 {
611 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
612 AV *ext_av = newAV ();
613
614 av_store (ext_av, 3, newSVuv (extent->fe_flags));
615 av_store (ext_av, 2, newSVval64 (extent->fe_length));
616 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
617 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
618
619 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
620 }
621
622 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
623 }
624 else
625 {
626 SvIV_set (sv_result, fiemap->fm_mapped_extents);
627 PUSHs (sv_result);
628 }
629 }
630#endif
631 }
632 else
633 PUSHs (sv_result);
634 break;
635
636 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
637 if (req->result > 0)
638 SvIV_set (sv_result, 0);
639 /* FALLTHROUGH */
640
641 default:
642 PUSHs (sv_result);
643 break;
644 }
645
646 errno = req->errorno;
647
648 PUTBACK;
649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
650 SPAGAIN;
651
652 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
653 SvREFCNT_dec (sv_result);
654 else
655 sv_result_cache = sv_result;
656
657 FREETMPS;
658 LEAVE;
659
660 PUTBACK;
365 } 661 }
366 while (type != REQ_QUIT); 662
663 return !!SvTRUE (ERRSV);
664}
665
666static void
667req_destroy (aio_req req)
668{
669 if (req->self)
670 {
671 sv_unmagic (req->self, PERL_MAGIC_ext);
672 SvREFCNT_dec (req->self);
673 }
674
675 SvREFCNT_dec (req->sv1);
676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
679 SvREFCNT_dec (req->callback);
680
681 free (req);
682}
683
684static void
685req_cancel_subs (aio_req grp)
686{
687 if (grp->type != EIO_GROUP)
688 return;
689
690 SvREFCNT_dec (grp->sv2);
691 grp->sv2 = 0;
692
693 eio_grp_cancel (grp);
694}
695
696static void ecb_cold
697create_respipe (void)
698{
699 if (s_epipe_renew (&respipe))
700 croak ("IO::AIO: unable to initialize result pipe");
701}
702
703static void
704poll_wait (void)
705{
706 while (eio_nreqs ())
707 {
708 int size;
709
710 X_LOCK (reslock);
711 size = res_queue.size;
712 X_UNLOCK (reslock);
713
714 if (size)
715 return;
716
717 etp_maybe_start_thread ();
718
719 s_epipe_wait (&respipe);
720 }
721}
722
723static int
724poll_cb (void)
725{
726 for (;;)
727 {
728 int res = eio_poll ();
729
730 if (res > 0)
731 croak (0);
732
733 if (!max_outstanding || max_outstanding > eio_nreqs ())
734 return res;
735
736 poll_wait ();
737 }
738}
739
740static void ecb_cold
741reinit (void)
742{
743 create_respipe ();
744
745 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library");
747}
748
749/*****************************************************************************/
750
751#if !_POSIX_MAPPED_FILES
752# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753# define munmap(addr,length) EIO_ENOSYS ()
754#endif
755
756#if !_POSIX_MEMORY_PROTECTION
757# define mprotect(addr,len,prot) EIO_ENOSYS ()
758# define PROT_NONE 0
759# define PROT_WRITE 0
760# define MAP_PRIVATE 0
761# define MAP_SHARED 0
762# define MAP_FIXED 0
763#endif
764
765#define MMAP_MAGIC PERL_MAGIC_ext
766
767static int ecb_cold
768mmap_free (pTHX_ SV *sv, MAGIC *mg)
769{
770 int old_errno = errno;
771 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
772 errno = old_errno;
773
774 mg->mg_obj = 0; /* just in case */
775
776 SvREADONLY_off (sv);
777
778 if (SvPVX (sv) != mg->mg_ptr)
779 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
780
781 SvCUR_set (sv, 0);
782 SvPVX (sv) = 0;
783 SvOK_off (sv);
367 784
368 return 0; 785 return 0;
369} 786}
370 787
788static MGVTBL mmap_vtbl = {
789 0, 0, 0, 0, mmap_free
790};
791
792/*****************************************************************************/
793
794static SV *
795get_cb (SV *cb_sv)
796{
797 SvGETMAGIC (cb_sv);
798 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
799}
800
801static aio_req ecb_noinline
802dreq (SV *callback)
803{
804 SV *cb_cv;
805 aio_req req;
806 int req_pri = next_pri;
807 next_pri = EIO_PRI_DEFAULT;
808
809 cb_cv = get_cb (callback);
810
811 req = calloc (sizeof (*req), 1);
812 if (!req)
813 croak ("out of memory during eio_req allocation");
814
815 req->callback = SvREFCNT_inc (cb_cv);
816 req->pri = req_pri;
817
818 return req;
819}
820
821#define dREQ \
822 aio_req req = dreq (callback); \
823
824#define REQ_SEND \
825 PUTBACK; \
826 req_submit (req); \
827 SPAGAIN; \
828 \
829 if (GIMME_V != G_VOID) \
830 XPUSHs (req_sv (req, aio_req_stash));
831
832ecb_inline void
833req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
834{
835 if (expect_false (SvROK (path)))
836 {
837 SV *rv = SvRV (path);
838 SV *wdob;
839
840 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
841 {
842 path = AvARRAY (rv)[1];
843 wdob = AvARRAY (rv)[0];
844
845 if (SvOK (wdob))
846 {
847 *wd = SvAIO_WD (wdob);
848 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
849 }
850 else
851 *wd = EIO_INVALID_WD;
852 }
853 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
854 {
855 *wd = (aio_wd)(long)SvIVX (rv);
856 *wdsv = SvREFCNT_inc_NN (rv);
857 *ptr = ".";
858 return; /* path set to "." */
859 }
860 else
861 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
862 }
863
864 *pathsv = newSVsv (path);
865 *ptr = SvPVbyte_nolen (*pathsv);
866}
867
868static void ecb_noinline
869req_set_path1 (aio_req req, SV *path)
870{
871 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
872}
873
874static void ecb_noinline
875req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
876{
877 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
878
879 switch (SvTYPE (rv))
880 {
881 case SVt_PVIO:
882 case SVt_PVLV:
883 case SVt_PVGV:
884 req->type = type_fh;
885 req->sv1 = newSVsv (fh_or_path);
886 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
887 break;
888
889 default:
890 req->type = type_path;
891 req_set_path1 (req, fh_or_path);
892 break;
893 }
894}
895
896XS(boot_IO__AIO) ecb_cold;
897
371MODULE = IO::AIO PACKAGE = IO::AIO 898MODULE = IO::AIO PACKAGE = IO::AIO
372 899
373PROTOTYPES: ENABLE 900PROTOTYPES: ENABLE
374 901
375BOOT: 902BOOT:
376{ 903{
377 if (pipe (respipe)) 904 static const struct {
378 croak ("unable to initialize result pipe"); 905 const char *name;
906 IV iv;
907 } *civ, const_iv[] = {
908# define const_niv(name, value) { # name, (IV) value },
909# define const_iv(name) { # name, (IV) name },
910# define const_eio(name) { # name, (IV) EIO_ ## name },
379 911
380 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 912 /* you have to re-run ./gendef0 after adding/Removing any constants here */
381 croak ("cannot set result pipe to nonblocking mode");
382 913
383 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 914 const_iv (ENOSYS)
384 croak ("cannot set result pipe to nonblocking mode"); 915 const_iv (EXDEV)
385} 916 const_iv (EBADR)
386 917
918 const_iv (O_RDONLY)
919 const_iv (O_WRONLY)
920 const_iv (O_RDWR)
921 const_iv (O_CREAT)
922 const_iv (O_TRUNC)
923 const_iv (O_EXCL)
924 const_iv (O_APPEND)
925
926 const_iv (O_ASYNC)
927 const_iv (O_DIRECT)
928 const_iv (O_NOATIME)
929
930 const_iv (O_CLOEXEC)
931 const_iv (O_NOCTTY)
932 const_iv (O_NOFOLLOW)
933 const_iv (O_NONBLOCK)
934 const_iv (O_EXEC)
935 const_iv (O_SEARCH)
936 const_iv (O_DIRECTORY)
937 const_iv (O_DSYNC)
938 const_iv (O_RSYNC)
939 const_iv (O_SYNC)
940 const_iv (O_TTY_INIT)
941
942 const_iv (S_IFIFO)
943 const_iv (S_IFCHR)
944 const_iv (S_IFBLK)
945 const_iv (S_IFLNK)
946 const_iv (S_IFREG)
947 const_iv (S_IFDIR)
948 const_iv (S_IFWHT)
949 const_iv (S_IFSOCK)
950 const_iv (S_IFMT)
951
952 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
953 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
954 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
955 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
956 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
957 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
958
959 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
960 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
961 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
962 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
963 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
964
965 const_iv (ST_RDONLY)
966 const_iv (ST_NOSUID)
967 const_iv (ST_NODEV)
968 const_iv (ST_NOEXEC)
969 const_iv (ST_SYNCHRONOUS)
970 const_iv (ST_MANDLOCK)
971 const_iv (ST_WRITE)
972 const_iv (ST_APPEND)
973 const_iv (ST_IMMUTABLE)
974 const_iv (ST_NOATIME)
975 const_iv (ST_NODIRATIME)
976 const_iv (ST_RELATIME)
977
978 const_iv (PROT_NONE)
979 const_iv (PROT_EXEC)
980 const_iv (PROT_READ)
981 const_iv (PROT_WRITE)
982
983 /*const_iv (MAP_FIXED)*/
984 const_iv (MAP_PRIVATE)
985 const_iv (MAP_SHARED)
986 const_iv (MAP_ANONYMOUS)
987
988 /* linuxish */
989 const_iv (MAP_HUGETLB)
990 const_iv (MAP_LOCKED)
991 const_iv (MAP_NORESERVE)
992 const_iv (MAP_POPULATE)
993 const_iv (MAP_NONBLOCK)
994
995 const_iv (FIEMAP_FLAG_SYNC)
996 const_iv (FIEMAP_FLAG_XATTR)
997 const_iv (FIEMAP_FLAGS_COMPAT)
998 const_iv (FIEMAP_EXTENT_LAST)
999 const_iv (FIEMAP_EXTENT_UNKNOWN)
1000 const_iv (FIEMAP_EXTENT_DELALLOC)
1001 const_iv (FIEMAP_EXTENT_ENCODED)
1002 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1003 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1004 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1005 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1006 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1007 const_iv (FIEMAP_EXTENT_MERGED)
1008 const_iv (FIEMAP_EXTENT_SHARED)
1009
1010 const_iv (SPLICE_F_MOVE)
1011 const_iv (SPLICE_F_NONBLOCK)
1012 const_iv (SPLICE_F_MORE)
1013 const_iv (SPLICE_F_GIFT)
1014
1015 const_iv (SEEK_DATA)
1016 const_iv (SEEK_HOLE)
1017
1018 /* libeio constants */
1019 const_eio (SEEK_SET)
1020 const_eio (SEEK_CUR)
1021 const_eio (SEEK_END)
1022
1023 const_eio (MCL_FUTURE)
1024 const_eio (MCL_CURRENT)
1025
1026 const_eio (MS_ASYNC)
1027 const_eio (MS_INVALIDATE)
1028 const_eio (MS_SYNC)
1029
1030 const_eio (MT_MODIFY)
1031
1032 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1033 const_eio (SYNC_FILE_RANGE_WRITE)
1034 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1035
1036 const_eio (FALLOC_FL_KEEP_SIZE)
1037 const_eio (FALLOC_FL_PUNCH_HOLE)
1038
1039 const_eio (READDIR_DENTS)
1040 const_eio (READDIR_DIRS_FIRST)
1041 const_eio (READDIR_STAT_ORDER)
1042 const_eio (READDIR_FOUND_UNKNOWN)
1043
1044 const_eio (DT_UNKNOWN)
1045 const_eio (DT_FIFO)
1046 const_eio (DT_CHR)
1047 const_eio (DT_DIR)
1048 const_eio (DT_BLK)
1049 const_eio (DT_REG)
1050 const_eio (DT_LNK)
1051 const_eio (DT_SOCK)
1052 const_eio (DT_WHT)
1053 };
1054
1055 aio_stash = gv_stashpv ("IO::AIO" , 1);
1056 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1057 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1058 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1059
1060 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1061 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1062
1063 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1064
1065 reinit ();
1066}
1067
387void 1068void
388min_parallel(nthreads) 1069reinit ()
389 int nthreads 1070 PROTOTYPE:
1071
1072void
1073max_poll_reqs (unsigned int nreqs)
390 PROTOTYPE: $ 1074 PROTOTYPE: $
391 CODE: 1075 CODE:
392 while (nthreads > started) 1076 eio_set_max_poll_reqs (nreqs);
393 start_thread ();
394 1077
395void 1078void
396max_parallel(nthreads) 1079max_poll_time (double nseconds)
397 int nthreads
398 PROTOTYPE: $ 1080 PROTOTYPE: $
399 CODE: 1081 CODE:
1082 eio_set_max_poll_time (nseconds);
1083
1084void
1085min_parallel (unsigned int nthreads)
1086 PROTOTYPE: $
1087 CODE:
1088 eio_set_min_parallel (nthreads);
1089
1090void
1091max_parallel (unsigned int nthreads)
1092 PROTOTYPE: $
1093 CODE:
1094 eio_set_max_parallel (nthreads);
1095
1096void
1097max_idle (unsigned int nthreads)
1098 PROTOTYPE: $
1099 CODE:
1100 eio_set_max_idle (nthreads);
1101
1102void
1103idle_timeout (unsigned int seconds)
1104 PROTOTYPE: $
1105 CODE:
1106 eio_set_idle_timeout (seconds);
1107
1108void
1109max_outstanding (unsigned int maxreqs)
1110 PROTOTYPE: $
1111 CODE:
1112 max_outstanding = maxreqs;
1113
1114void
1115aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1116 PPCODE:
400{ 1117{
401 int cur = started; 1118 dREQ;
402 while (cur > nthreads) 1119
403 { 1120 req->type = EIO_WD_OPEN;
404 end_thread (); 1121 req_set_path1 (req, pathname);
1122
1123 REQ_SEND;
1124}
1125
1126void
1127aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1128 PPCODE:
1129{
1130 dREQ;
1131
1132 req->type = EIO_OPEN;
1133 req_set_path1 (req, pathname);
1134 req->int1 = flags;
1135 req->int2 = mode;
1136
1137 REQ_SEND;
1138}
1139
1140void
1141aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1142 ALIAS:
1143 aio_fsync = EIO_FSYNC
1144 aio_fdatasync = EIO_FDATASYNC
1145 aio_syncfs = EIO_SYNCFS
1146 PPCODE:
1147{
1148 int fd = s_fileno_croak (fh, 0);
1149 dREQ;
1150
1151 req->type = ix;
1152 req->sv1 = newSVsv (fh);
1153 req->int1 = fd;
1154
1155 REQ_SEND;
1156}
1157
1158void
1159aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1160 PPCODE:
1161{
1162 int fd = s_fileno_croak (fh, 0);
1163 dREQ;
1164
1165 req->type = EIO_SYNC_FILE_RANGE;
1166 req->sv1 = newSVsv (fh);
1167 req->int1 = fd;
1168 req->offs = offset;
1169 req->size = nbytes;
1170 req->int2 = flags;
1171
1172 REQ_SEND;
1173}
1174
1175void
1176aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1177 PPCODE:
1178{
1179 int fd = s_fileno_croak (fh, 0);
1180 dREQ;
1181
1182 req->type = EIO_FALLOCATE;
1183 req->sv1 = newSVsv (fh);
1184 req->int1 = fd;
1185 req->int2 = mode;
1186 req->offs = offset;
1187 req->size = len;
1188
1189 REQ_SEND;
1190}
1191
1192void
1193aio_close (SV *fh, SV *callback=&PL_sv_undef)
1194 PPCODE:
1195{
1196 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1197 int fd = s_fileno_croak (fh, 0);
1198 dREQ;
1199
1200 if (expect_false (close_fd < 0))
1201 {
1202 int pipefd [2];
1203
1204 if (
1205#ifdef _WIN32
1206 _pipe (pipefd, 1, _O_BINARY) < 0
1207#else
1208 pipe (pipefd) < 0
1209 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1210#endif
1211 || close (pipefd [1]) < 0
405 cur--; 1212 )
1213 abort (); /*D*/
1214
1215 close_fd = pipefd [0];
406 } 1216 }
407 1217
408 while (started > nthreads) 1218 req->type = EIO_DUP2;
1219 req->int1 = close_fd;
1220 req->sv2 = newSVsv (fh);
1221 req->int2 = fd;
1222
1223 REQ_SEND;
1224}
1225
1226void
1227aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1228 PPCODE:
1229{
1230 int fd = s_fileno_croak (fh, 0);
1231 dREQ;
1232
1233 req->type = EIO_SEEK;
1234 req->sv1 = newSVsv (fh);
1235 req->int1 = fd;
1236 req->offs = SvVAL64 (offset);
1237 req->int2 = whence;
1238
1239 REQ_SEND;
1240}
1241
1242void
1243aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1244 ALIAS:
1245 aio_read = EIO_READ
1246 aio_write = EIO_WRITE
1247 PPCODE:
1248{
1249 STRLEN svlen;
1250 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1251 char *svptr = SvPVbyte (data, svlen);
1252 UV len = SvUV (length);
1253
1254 if (dataoffset < 0)
1255 dataoffset += svlen;
1256
1257 if (dataoffset < 0 || dataoffset > svlen)
1258 croak ("dataoffset outside of data scalar");
1259
1260 if (ix == EIO_WRITE)
1261 {
1262 /* write: check length and adjust. */
1263 if (!SvOK (length) || len + dataoffset > svlen)
1264 len = svlen - dataoffset;
1265 }
1266 else
1267 {
1268 /* read: check type and grow scalar as necessary */
1269 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1270 svptr = sv_grow (data, len + dataoffset + 1);
1271 else if (SvCUR (data) < len + dataoffset)
1272 croak ("length + dataoffset outside of scalar, and cannot grow");
1273 }
1274
1275 {
1276 dREQ;
1277
1278 req->type = ix;
1279 req->sv1 = newSVsv (fh);
1280 req->int1 = fd;
1281 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1282 req->size = len;
1283 req->sv2 = SvREFCNT_inc (data);
1284 req->ptr2 = (char *)svptr + dataoffset;
1285 req->stroffset = dataoffset;
1286
1287 if (!SvREADONLY (data))
1288 {
1289 SvREADONLY_on (data);
1290 req->flags |= FLAG_SV2_RO_OFF;
1291 }
1292
1293 REQ_SEND;
1294 }
1295}
1296
1297void
1298aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1299 ALIAS:
1300 aio_readlink = EIO_READLINK
1301 aio_realpath = EIO_REALPATH
1302 PPCODE:
1303{
1304 dREQ;
1305
1306 req->type = ix;
1307 req_set_path1 (req, pathname);
1308
1309 REQ_SEND;
1310}
1311
1312void
1313aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1314 PPCODE:
1315{
1316 int ifd = s_fileno_croak (in_fh , 0);
1317 int ofd = s_fileno_croak (out_fh, 1);
1318 dREQ;
1319
1320 req->type = EIO_SENDFILE;
1321 req->sv1 = newSVsv (out_fh);
1322 req->int1 = ofd;
1323 req->sv2 = newSVsv (in_fh);
1324 req->int2 = ifd;
1325 req->offs = in_offset;
1326 req->size = length;
1327
1328 REQ_SEND;
1329}
1330
1331void
1332aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1333 PPCODE:
1334{
1335 int fd = s_fileno_croak (fh, 0);
1336 dREQ;
1337
1338 req->type = EIO_READAHEAD;
1339 req->sv1 = newSVsv (fh);
1340 req->int1 = fd;
1341 req->offs = offset;
1342 req->size = length;
1343
1344 REQ_SEND;
1345}
1346
1347void
1348aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1349 ALIAS:
1350 aio_stat = EIO_STAT
1351 aio_lstat = EIO_LSTAT
1352 aio_statvfs = EIO_STATVFS
1353 PPCODE:
1354{
1355 dREQ;
1356
1357 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1358
1359 REQ_SEND;
1360}
1361
1362UV
1363major (UV dev)
1364 ALIAS:
1365 minor = 1
1366 CODE:
1367 RETVAL = ix ? major (dev) : minor (dev);
1368 OUTPUT:
1369 RETVAL
1370
1371UV
1372makedev (UV maj, UV min)
1373 CODE:
1374 RETVAL = makedev (maj, min);
1375 OUTPUT:
1376 RETVAL
1377
1378void
1379aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1380 PPCODE:
1381{
1382 dREQ;
1383
1384 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1385 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1386 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1387
1388 REQ_SEND;
1389}
1390
1391void
1392aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1393 PPCODE:
1394{
1395 dREQ;
1396
1397 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1398 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1399
1400 REQ_SEND;
1401}
1402
1403void
1404aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1405 PPCODE:
1406{
1407 dREQ;
1408
1409 req->int2 = mode;
1410 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1411
1412 REQ_SEND;
1413}
1414
1415void
1416aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1417 PPCODE:
1418{
1419 dREQ;
1420
1421 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1422 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1423 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1424
1425 REQ_SEND;
1426}
1427
1428void
1429aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1430 PPCODE:
1431{
1432 dREQ;
1433
1434 req->type = EIO_READDIR;
1435 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1436
1437 if (flags & EIO_READDIR_DENTS)
1438 req->int1 |= EIO_READDIR_CUSTOM2;
1439
1440 req_set_path1 (req, pathname);
1441
1442 REQ_SEND;
1443}
1444
1445void
1446aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1447 PPCODE:
1448{
1449 dREQ;
1450
1451 req->type = EIO_MKDIR;
1452 req->int2 = mode;
1453 req_set_path1 (req, pathname);
1454
1455 REQ_SEND;
1456}
1457
1458void
1459aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1460 ALIAS:
1461 aio_unlink = EIO_UNLINK
1462 aio_rmdir = EIO_RMDIR
1463 aio_readdir = EIO_READDIR
1464 PPCODE:
1465{
1466 dREQ;
1467
1468 req->type = ix;
1469 req_set_path1 (req, pathname);
1470
1471 REQ_SEND;
1472}
1473
1474void
1475aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1476 ALIAS:
1477 aio_link = EIO_LINK
1478 aio_symlink = EIO_SYMLINK
1479 aio_rename = EIO_RENAME
1480 PPCODE:
1481{
1482 eio_wd wd2 = 0;
1483 dREQ;
1484
1485 req->type = ix;
1486 req_set_path1 (req, oldpath);
1487 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1488 req->int3 = (long)wd2;
1489
1490 REQ_SEND;
1491}
1492
1493void
1494aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1495 PPCODE:
1496{
1497 dREQ;
1498
1499 req->type = EIO_MKNOD;
1500 req->int2 = (mode_t)mode;
1501 req->offs = dev;
1502 req_set_path1 (req, pathname);
1503
1504 REQ_SEND;
1505}
1506
1507void
1508aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1509 ALIAS:
1510 aio_mtouch = EIO_MTOUCH
1511 aio_msync = EIO_MSYNC
1512 PPCODE:
1513{
1514 STRLEN svlen;
1515 char *svptr = SvPVbyte (data, svlen);
1516 UV len = SvUV (length);
1517
1518 if (offset < 0)
1519 offset += svlen;
1520
1521 if (offset < 0 || offset > svlen)
1522 croak ("offset outside of scalar");
1523
1524 if (!SvOK (length) || len + offset > svlen)
1525 len = svlen - offset;
1526
1527 {
1528 dREQ;
1529
1530 req->type = ix;
1531 req->sv2 = SvREFCNT_inc (data);
1532 req->ptr2 = (char *)svptr + offset;
1533 req->size = len;
1534 req->int1 = flags;
1535
1536 REQ_SEND;
1537 }
1538}
1539
1540void
1541aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1542 PPCODE:
1543{
1544 STRLEN svlen;
1545 char *svptr = SvPVbyte (data, svlen);
1546 UV len = SvUV (length);
1547
1548 if (offset < 0)
1549 offset += svlen;
1550
1551 if (offset < 0 || offset > svlen)
1552 croak ("offset outside of scalar");
1553
1554 if (!SvOK (length) || len + offset > svlen)
1555 len = svlen - offset;
1556
1557 {
1558 dREQ;
1559
1560 req->type = EIO_MLOCK;
1561 req->sv2 = SvREFCNT_inc (data);
1562 req->ptr2 = (char *)svptr + offset;
1563 req->size = len;
1564
1565 REQ_SEND;
1566 }
1567}
1568
1569void
1570aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1571 PPCODE:
1572{
1573 dREQ;
1574
1575 req->type = EIO_MLOCKALL;
1576 req->int1 = flags;
1577
1578 REQ_SEND;
1579}
1580
1581void
1582aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1583 PPCODE:
1584{
1585 int fd = s_fileno_croak (fh, 0);
1586 dREQ;
1587
1588 req->type = EIO_CUSTOM;
1589 req->sv1 = newSVsv (fh);
1590 req->int1 = fd;
1591
1592 req->feed = fiemap;
1593#if HAVE_FIEMAP
1594 /* keep our fingers crossed that the next two types are 64 bit */
1595 req->offs = start;
1596 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1597 req->int2 = flags;
1598 req->int3 = SvOK (count) ? SvIV (count) : -1;
1599#endif
1600
1601 REQ_SEND;
1602}
1603
1604void
1605aio_busy (double delay, SV *callback=&PL_sv_undef)
1606 PPCODE:
1607{
1608 dREQ;
1609
1610 req->type = EIO_BUSY;
1611 req->nv1 = delay < 0. ? 0. : delay;
1612
1613 REQ_SEND;
1614}
1615
1616void
1617aio_group (SV *callback=&PL_sv_undef)
1618 PPCODE:
1619{
1620 dREQ;
1621
1622 req->type = EIO_GROUP;
1623
1624 PUTBACK;
1625 req_submit (req);
1626 SPAGAIN;
1627
1628 XPUSHs (req_sv (req, aio_grp_stash));
1629}
1630
1631void
1632aio_nop (SV *callback=&PL_sv_undef)
1633 ALIAS:
1634 aio_nop = EIO_NOP
1635 aio_sync = EIO_SYNC
1636 PPCODE:
1637{
1638 dREQ;
1639
1640 req->type = ix;
1641
1642 REQ_SEND;
1643}
1644
1645int
1646aioreq_pri (int pri = 0)
1647 CODE:
1648 RETVAL = next_pri;
1649 if (items > 0)
1650 {
1651 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1652 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1653 next_pri = pri;
1654 }
1655 OUTPUT:
1656 RETVAL
1657
1658void
1659aioreq_nice (int nice = 0)
1660 CODE:
1661 nice = next_pri - nice;
1662 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1663 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1664 next_pri = nice;
1665
1666void
1667flush ()
1668 CODE:
1669 while (eio_nreqs ())
409 { 1670 {
410 poll_wait (); 1671 poll_wait ();
411 poll_cb (); 1672 poll_cb ();
412 } 1673 }
413}
414 1674
415int 1675int
416max_outstanding(nreqs) 1676poll ()
417 int nreqs
418 PROTOTYPE: $
419 CODE:
420 RETVAL = max_outstanding;
421 max_outstanding = nreqs;
422
423void
424aio_open(pathname,flags,mode,callback=&PL_sv_undef)
425 SV * pathname
426 int flags
427 int mode
428 SV * callback
429 PROTOTYPE: $$$;$
430 CODE: 1677 CODE:
431{
432 aio_req req;
433
434 Newz (0, req, 1, aio_cb);
435
436 if (!req)
437 croak ("out of memory during aio_req allocation");
438
439 req->type = REQ_OPEN;
440 req->data = newSVsv (pathname);
441 req->dataptr = SvPV_nolen (req->data);
442 req->fd = flags;
443 req->mode = mode;
444 req->callback = SvREFCNT_inc (callback);
445
446 send_req (req);
447}
448
449void
450aio_close(fh,callback=&PL_sv_undef)
451 InputStream fh
452 SV * callback
453 PROTOTYPE: $;$
454 ALIAS:
455 aio_close = REQ_CLOSE
456 aio_fsync = REQ_FSYNC
457 aio_fdatasync = REQ_FDATASYNC
458 CODE:
459{
460 aio_req req;
461
462 Newz (0, req, 1, aio_cb);
463
464 if (!req)
465 croak ("out of memory during aio_req allocation");
466
467 req->type = ix;
468 req->fd = PerlIO_fileno (fh);
469 req->callback = SvREFCNT_inc (callback);
470
471 send_req (req);
472}
473
474void
475aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
476 InputStream fh
477 UV offset
478 IV length
479 SV * data
480 IV dataoffset
481 SV * callback
482 PROTOTYPE: $$$$$;$
483 CODE:
484 read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
485
486void
487aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
488 OutputStream fh
489 UV offset
490 IV length
491 SV * data
492 IV dataoffset
493 SV * callback
494 PROTOTYPE: $$$$$;$
495 CODE:
496 read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
497
498void
499aio_readahead(fh,offset,length,callback=&PL_sv_undef)
500 InputStream fh
501 UV offset
502 IV length
503 SV * callback
504 PROTOTYPE: $$$;$
505 CODE:
506{
507 aio_req req;
508
509 if (length < 0)
510 croak ("length must not be negative");
511
512 Newz (0, req, 1, aio_cb);
513
514 if (!req)
515 croak ("out of memory during aio_req allocation");
516
517 req->type = REQ_READAHEAD;
518 req->fd = PerlIO_fileno (fh);
519 req->offset = offset;
520 req->length = length;
521 req->callback = SvREFCNT_inc (callback);
522
523 send_req (req);
524}
525
526void
527aio_stat(fh_or_path,callback=&PL_sv_undef)
528 SV * fh_or_path
529 SV * callback
530 ALIAS:
531 aio_stat = REQ_STAT
532 aio_lstat = REQ_LSTAT
533 CODE:
534{
535 aio_req req;
536
537 Newz (0, req, 1, aio_cb);
538
539 if (!req)
540 croak ("out of memory during aio_req allocation");
541
542 New (0, req->statdata, 1, Stat_t);
543
544 if (!req->statdata)
545 croak ("out of memory during aio_req->statdata allocation");
546
547 if (SvPOK (fh_or_path))
548 {
549 req->type = ix;
550 req->data = newSVsv (fh_or_path);
551 req->dataptr = SvPV_nolen (req->data);
552 }
553 else
554 {
555 req->type = REQ_FSTAT;
556 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
557 }
558
559 req->callback = SvREFCNT_inc (callback);
560
561 send_req (req);
562}
563
564void
565aio_unlink(pathname,callback=&PL_sv_undef)
566 SV * pathname
567 SV * callback
568 CODE:
569{
570 aio_req req;
571
572 Newz (0, req, 1, aio_cb);
573
574 if (!req)
575 croak ("out of memory during aio_req allocation");
576
577 req->type = REQ_UNLINK;
578 req->data = newSVsv (pathname);
579 req->dataptr = SvPV_nolen (req->data);
580 req->callback = SvREFCNT_inc (callback);
581
582 send_req (req);
583}
584
585void
586flush()
587 PROTOTYPE:
588 CODE:
589 while (nreqs)
590 {
591 poll_wait (); 1678 poll_wait ();
592 poll_cb (); 1679 RETVAL = poll_cb ();
593 }
594
595void
596poll()
597 PROTOTYPE:
598 CODE:
599 if (nreqs)
600 {
601 poll_wait ();
602 poll_cb ();
603 }
604
605int
606poll_fileno()
607 PROTOTYPE:
608 CODE:
609 RETVAL = respipe [0];
610 OUTPUT: 1680 OUTPUT:
611 RETVAL 1681 RETVAL
612 1682
613int 1683int
1684poll_fileno ()
1685 CODE:
1686 RETVAL = s_epipe_fd (&respipe);
1687 OUTPUT:
1688 RETVAL
1689
1690int
614poll_cb(...) 1691poll_cb (...)
615 PROTOTYPE: 1692 PROTOTYPE:
616 CODE: 1693 CODE:
617 RETVAL = poll_cb (); 1694 RETVAL = poll_cb ();
618 OUTPUT: 1695 OUTPUT:
619 RETVAL 1696 RETVAL
620 1697
621void 1698void
622poll_wait() 1699poll_wait ()
623 PROTOTYPE:
624 CODE: 1700 CODE:
625 if (nreqs)
626 poll_wait (); 1701 poll_wait ();
627 1702
628int 1703int
629nreqs() 1704nreqs ()
630 PROTOTYPE:
631 CODE: 1705 CODE:
632 RETVAL = nreqs; 1706 RETVAL = eio_nreqs ();
633 OUTPUT: 1707 OUTPUT:
634 RETVAL 1708 RETVAL
635 1709
1710int
1711nready ()
1712 CODE:
1713 RETVAL = eio_nready ();
1714 OUTPUT:
1715 RETVAL
1716
1717int
1718npending ()
1719 CODE:
1720 RETVAL = eio_npending ();
1721 OUTPUT:
1722 RETVAL
1723
1724int
1725nthreads ()
1726 CODE:
1727 RETVAL = eio_nthreads ();
1728 OUTPUT:
1729 RETVAL
1730
1731int
1732fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1733 CODE:
1734 RETVAL = posix_fadvise (fh, offset, length, advice);
1735 OUTPUT:
1736 RETVAL
1737
1738IV
1739sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1740 CODE:
1741 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1742 OUTPUT:
1743 RETVAL
1744
1745void
1746mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1747 PPCODE:
1748 sv_unmagic (scalar, MMAP_MAGIC);
1749{
1750 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1751 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1752 if (addr == (void *)-1)
1753 XSRETURN_NO;
1754
1755 sv_force_normal (scalar);
1756
1757 /* we store the length in mg_obj, as namlen is I32 :/ */
1758 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1759 ->mg_obj = (SV *)length;
1760
1761 SvUPGRADE (scalar, SVt_PV); /* nop... */
1762
1763 if (!(prot & PROT_WRITE))
1764 SvREADONLY_on (scalar);
1765
1766 if (SvLEN (scalar))
1767 Safefree (SvPVX (scalar));
1768
1769 SvPVX (scalar) = (char *)addr;
1770 SvCUR_set (scalar, length);
1771 SvLEN_set (scalar, 0);
1772 SvPOK_only (scalar);
1773
1774 XSRETURN_YES;
1775}
1776
1777void
1778munmap (SV *scalar)
1779 CODE:
1780 sv_unmagic (scalar, MMAP_MAGIC);
1781
1782int
1783madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1784 ALIAS:
1785 mprotect = 1
1786 CODE:
1787{
1788 STRLEN svlen;
1789 void *addr = SvPVbyte (scalar, svlen);
1790 size_t len = SvUV (length);
1791
1792 if (offset < 0)
1793 offset += svlen;
1794
1795 if (offset < 0 || offset > svlen)
1796 croak ("offset outside of scalar");
1797
1798 if (!SvOK (length) || len + offset > svlen)
1799 len = svlen - offset;
1800
1801 addr = (void *)(((intptr_t)addr) + offset);
1802 eio_page_align (&addr, &len);
1803
1804 switch (ix)
1805 {
1806 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1807 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1808 }
1809}
1810 OUTPUT:
1811 RETVAL
1812
1813int
1814munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1815 CODE:
1816{
1817 STRLEN svlen;
1818 void *addr = SvPVbyte (scalar, svlen);
1819 size_t len = SvUV (length);
1820
1821 if (offset < 0)
1822 offset += svlen;
1823
1824 if (offset < 0 || offset > svlen)
1825 croak ("offset outside of scalar");
1826
1827 if (!SvOK (length) || len + offset > svlen)
1828 len = svlen - offset;
1829
1830 addr = (void *)(((intptr_t)addr) + offset);
1831 eio_page_align (&addr, &len);
1832#if _POSIX_MEMLOCK_RANGE
1833 RETVAL = munlock (addr, len);
1834#else
1835 RETVAL = EIO_ENOSYS ();
1836#endif
1837}
1838 OUTPUT:
1839 RETVAL
1840
1841int
1842munlockall ()
1843 CODE:
1844#if _POSIX_MEMLOCK
1845 munlockall ();
1846#else
1847 RETVAL = EIO_ENOSYS ();
1848#endif
1849 OUTPUT:
1850 RETVAL
1851
1852int
1853splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1854 CODE:
1855{
1856#if HAVE_LINUX_SPLICE
1857 loff_t off_in_, off_out_;
1858 RETVAL = splice (
1859 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1860 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1861 length, flags
1862 );
1863#else
1864 RETVAL = EIO_ENOSYS ();
1865#endif
1866}
1867 OUTPUT:
1868 RETVAL
1869
1870int
1871tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1872 CODE:
1873#if HAVE_LINUX_SPLICE
1874 RETVAL = tee (rfh, wfh, length, flags);
1875#else
1876 RETVAL = EIO_ENOSYS ();
1877#endif
1878 OUTPUT:
1879 RETVAL
1880
1881int
1882pipesize (aio_rfd rfh, int new_size = -1)
1883 PROTOTYPE: $;$
1884 CODE:
1885#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1886 if (new_size >= 0)
1887 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1888 else
1889 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1890#else
1891 errno = ENOSYS;
1892 RETVAL = -1;
1893#endif
1894 OUTPUT:
1895 RETVAL
1896
1897void _on_next_submit (SV *cb)
1898 CODE:
1899 SvREFCNT_dec (on_next_submit);
1900 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1901
1902PROTOTYPES: DISABLE
1903
1904MODULE = IO::AIO PACKAGE = IO::AIO::WD
1905
1906BOOT:
1907{
1908 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1909 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1910}
1911
1912void
1913DESTROY (SV *self)
1914 CODE:
1915{
1916 aio_wd wd = SvAIO_WD (self);
1917#if HAVE_AT
1918 {
1919 SV *callback = &PL_sv_undef;
1920 dREQ; /* clobbers next_pri :/ */
1921 next_pri = req->pri; /* restore next_pri */
1922 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1923 req->type = EIO_WD_CLOSE;
1924 req->wd = wd;
1925 REQ_SEND;
1926 }
1927#else
1928 eio_wd_close_sync (wd);
1929#endif
1930}
1931
1932MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1933
1934void
1935cancel (aio_req_ornot req)
1936 CODE:
1937 eio_cancel (req);
1938
1939void
1940cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1941 PPCODE:
1942{
1943 if (GIMME_V != G_VOID)
1944 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1945
1946 if (items > 1)
1947 {
1948 SV *cb_cv =get_cb (callback);
1949
1950 SvREFCNT_dec (req->callback);
1951 req->callback = SvREFCNT_inc (cb_cv);
1952 }
1953}
1954
1955MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1956
1957void
1958add (aio_req grp, ...)
1959 PPCODE:
1960{
1961 int i;
1962
1963 if (grp->int1 == 2)
1964 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1965
1966 for (i = 1; i < items; ++i )
1967 {
1968 aio_req req;
1969
1970 if (GIMME_V != G_VOID)
1971 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1972
1973 req = SvAIO_REQ (ST (i));
1974
1975 if (req)
1976 eio_grp_add (grp, req);
1977 }
1978}
1979
1980void
1981cancel_subs (aio_req_ornot req)
1982 CODE:
1983 req_cancel_subs (req);
1984
1985void
1986result (aio_req grp, ...)
1987 CODE:
1988{
1989 int i;
1990 AV *av;
1991
1992 grp->errorno = errno;
1993
1994 av = newAV ();
1995 av_extend (av, items - 1);
1996
1997 for (i = 1; i < items; ++i )
1998 av_push (av, newSVsv (ST (i)));
1999
2000 SvREFCNT_dec (grp->sv1);
2001 grp->sv1 = (SV *)av;
2002}
2003
2004void
2005errno (aio_req grp, int errorno = errno)
2006 CODE:
2007 grp->errorno = errorno;
2008
2009void
2010limit (aio_req grp, int limit)
2011 CODE:
2012 eio_grp_limit (grp, limit);
2013
2014void
2015feed (aio_req grp, SV *callback=&PL_sv_undef)
2016 CODE:
2017{
2018 SvREFCNT_dec (grp->sv2);
2019 grp->sv2 = newSVsv (callback);
2020 grp->feed = aio_grp_feed;
2021
2022 if (grp->int2 <= 0)
2023 grp->int2 = 2;
2024
2025 eio_grp_limit (grp, grp->int2);
2026}
2027

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