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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.6 by root, Mon Jul 11 01:03:17 2005 UTC vs.
Revision 1.223 by root, Tue Aug 28 03:13:33 2012 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
9#include "schmorp.h"
10
11#include <stddef.h>
12#include <stdlib.h>
13#include <errno.h>
5#include <sys/types.h> 14#include <sys/types.h>
6#include <sys/stat.h> 15#include <sys/stat.h>
7#include <unistd.h> 16#include <limits.h>
8#include <fcntl.h> 17#include <fcntl.h>
9#include <signal.h>
10#include <sched.h> 18#include <sched.h>
11#include <endian.h>
12 19
13#include <pthread.h> 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
14#include <sys/syscall.h> 21# include <sys/mman.h>
22#endif
15 23
16typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 24#if __linux__
17typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 25# include <linux/fs.h>
18typedef 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
19 32
20#if __ia64 33/* perl namespace pollution */
21# 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
22#else 79#else
23# 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 */
24#endif 142# endif
143#endif
25 144
26enum { 145/* defines all sorts of constants to 0 unless they are already defined */
27 REQ_QUIT, 146#include "def0.h"
28 REQ_OPEN, REQ_CLOSE,
29 REQ_READ, REQ_WRITE, REQ_READAHEAD,
30 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,
31 REQ_FSYNC, REQ_FDATASYNC,
32};
33 147
34typedef struct aio_cb { 148#ifndef makedev
35 struct aio_cb *volatile next; 149# define makedev(maj,min) (((maj) << 8) | (min))
150#endif
151#ifndef major
152# define major(dev) ((dev) >> 8)
153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
36 157
37 int type; 158#ifndef PAGESIZE
159# define PAGESIZE sysconf (_SC_PAGESIZE)
160#endif
38 161
39 int fd; 162/*****************************************************************************/
40 off_t offset;
41 size_t length;
42 ssize_t result;
43 mode_t mode; /* open */
44 int errorno;
45 SV *data, *callback;
46 void *dataptr;
47 STRLEN dataoffset;
48
49 Stat_t *statdata;
50} aio_cb;
51
52typedef aio_cb *aio_req;
53
54static int started;
55static int nreqs;
56static int max_outstanding = 1<<30;
57static int respipe [2];
58
59static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
60static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
61static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
62
63static volatile aio_req reqs, reqe; /* queue start, queue end */
64static volatile aio_req ress, rese; /* queue start, queue end */
65 163
66static void 164static void
67poll_wait () 165fiemap (eio_req *req)
68{ 166{
69 if (!nreqs) 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)
70 return; 185 return;
71 186
72 fd_set rfd; 187 req->ptr1 = fiemap;
73 FD_ZERO(&rfd);
74 FD_SET(respipe [0], &rfd);
75 188
76 select (respipe [0] + 1, &rfd, 0, 0, 0); 189 fiemap->fm_start = req->offs;
77} 190 fiemap->fm_length = req->size;
191 fiemap->fm_flags = req->int2;
192 fiemap->fm_extent_count = count;
78 193
79static int 194 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
80poll_cb () 195 return;
81{ 196
82 dSP; 197 if (req->int3 >= 0 /* not autosizing */
83 int count = 0; 198 || !fiemap->fm_mapped_extents /* no more extents */
84 aio_req req; 199 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
85 200 goto done;
86 { 201
87 /* read and signals sent by the worker threads */ 202 /* else we have to loop -
88 char buf [32]; 203 * it would be tempting (atcually I tried that first) to just query the
89 while (read (respipe [0], buf, 32) > 0) 204 * number of extents needed, but linux often feels like not returning all
90 ; 205 * extents, without telling us it left any out. this complicates
91 } 206 * this quite a bit.
207 */
208
209 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
92 210
93 for (;;) 211 for (;;)
94 { 212 {
95 pthread_mutex_lock (&reslock); 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;
96 216
97 req = ress; 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);
98 222
99 if (ress) 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)
100 { 235 {
101 ress = ress->next; 236 struct fiemap_extent *e = incmap->fm_extents + count;
102 if (!ress) rese = 0; 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
103 } 246 }
247 }
104 248
105 pthread_mutex_unlock (&reslock); 249done:
250 req->result = 0;
106 251
107 if (!req) 252#else
108 break; 253 errno = ENOSYS;
254#endif
255}
109 256
110 nreqs--; 257/*****************************************************************************/
111 258
112 if (req->type == REQ_QUIT) 259enum {
113 started--; 260 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
114 else 261};
262
263typedef eio_req *aio_req;
264typedef eio_req *aio_req_ornot;
265typedef eio_wd aio_wd;
266
267static SV *on_next_submit;
268static int next_pri = EIO_PRI_DEFAULT;
269static int max_outstanding;
270
271static s_epipe respipe;
272
273static void req_destroy (aio_req req);
274static void req_cancel (aio_req req);
275
276static void
277want_poll (void)
278{
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)
295 {
296 req->self = (SV *)newHV ();
297 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
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 }
372}
373
374static int
375req_invoke (eio_req *req)
376{
377 if (req->flags & FLAG_SV2_RO_OFF)
378 SvREADONLY_off (req->sv2);
379
380 if (!EIO_CANCELLED (req) && req->callback)
381 {
382 dSP;
383 static SV *sv_result_cache; /* caches the result integer SV */
384 SV *sv_result;
385
386 ENTER;
387 SAVETMPS;
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))
115 { 393 {
116 int errorno = errno; 394 sv_result = sv_result_cache; sv_result_cache = 0;
117 errno = req->errorno; 395 SvIV_set (sv_result, req->result);
118 396 SvIOK_only (sv_result);
119 if (req->type == REQ_READ)
120 SvCUR_set (req->data, req->dataoffset
121 + req->result > 0 ? req->result : 0);
122
123 if (req->data)
124 SvREFCNT_dec (req->data);
125
126 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
127 {
128 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
129 PL_laststatval = req->result;
130 PL_statcache = *(req->statdata);
131
132 Safefree (req->statdata);
133 }
134
135 PUSHMARK (SP);
136 XPUSHs (sv_2mortal (newSViv (req->result)));
137
138 if (req->type == REQ_OPEN)
139 {
140 /* convert fd to fh */
141 SV *fh;
142
143 PUTBACK;
144 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
145 SPAGAIN;
146
147 fh = POPs;
148
149 PUSHMARK (SP);
150 XPUSHs (fh);
151 }
152
153 PUTBACK;
154 call_sv (req->callback, G_VOID | G_EVAL);
155 SPAGAIN;
156
157 if (req->callback)
158 SvREFCNT_dec (req->callback);
159
160 errno = errorno;
161 count++;
162 }
163
164 Safefree (req);
165 }
166
167 return count;
168}
169
170static void *aio_proc(void *arg);
171
172static void
173start_thread (void)
174{
175 sigset_t fullsigset, oldsigset;
176 pthread_t tid;
177 pthread_attr_t attr;
178
179 pthread_attr_init (&attr);
180 pthread_attr_setstacksize (&attr, STACKSIZE);
181 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
182
183 sigfillset (&fullsigset);
184 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
185
186 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
187 started++;
188
189 sigprocmask (SIG_SETMASK, &oldsigset, 0);
190}
191
192static void
193send_req (aio_req req)
194{
195 nreqs++;
196
197 pthread_mutex_lock (&reqlock);
198
199 req->next = 0;
200
201 if (reqe)
202 {
203 reqe->next = req;
204 reqe = req;
205 }
206 else
207 reqe = reqs = req;
208
209 pthread_cond_signal (&reqwait);
210 pthread_mutex_unlock (&reqlock);
211
212 while (nreqs > max_outstanding)
213 {
214 poll_wait ();
215 poll_cb ();
216 }
217}
218
219static void
220end_thread (void)
221{
222 aio_req req;
223 New (0, req, 1, aio_cb);
224 req->type = REQ_QUIT;
225
226 send_req (req);
227}
228
229static void
230read_write (int dowrite, int fd, off_t offset, size_t length,
231 SV *data, STRLEN dataoffset, SV *callback)
232{
233 aio_req req;
234 STRLEN svlen;
235 char *svptr = SvPV (data, svlen);
236
237 SvUPGRADE (data, SVt_PV);
238 SvPOK_on (data);
239
240 if (dataoffset < 0)
241 dataoffset += svlen;
242
243 if (dataoffset < 0 || dataoffset > svlen)
244 croak ("data offset outside of string");
245
246 if (dowrite)
247 {
248 /* write: check length and adjust. */
249 if (length < 0 || length + dataoffset > svlen)
250 length = svlen - dataoffset;
251 }
252 else
253 {
254 /* read: grow scalar as necessary */
255 svptr = SvGROW (data, length + dataoffset);
256 }
257
258 if (length < 0)
259 croak ("length must not be negative");
260
261 Newz (0, req, 1, aio_cb);
262
263 if (!req)
264 croak ("out of memory during aio_req allocation");
265
266 req->type = dowrite ? REQ_WRITE : REQ_READ;
267 req->fd = fd;
268 req->offset = offset;
269 req->length = length;
270 req->data = SvREFCNT_inc (data);
271 req->dataptr = (char *)svptr + dataoffset;
272 req->callback = SvREFCNT_inc (callback);
273
274 send_req (req);
275}
276
277static void *
278aio_proc (void *thr_arg)
279{
280 aio_req req;
281 int type;
282
283 do
284 {
285 pthread_mutex_lock (&reqlock);
286
287 for (;;)
288 {
289 req = reqs;
290
291 if (reqs)
292 {
293 reqs = reqs->next;
294 if (!reqs) reqe = 0;
295 }
296
297 if (req)
298 break;
299
300 pthread_cond_wait (&reqwait, &reqlock);
301 }
302
303 pthread_mutex_unlock (&reqlock);
304
305 errno = 0; /* strictly unnecessary */
306
307 type = req->type;
308
309 switch (type)
310 {
311 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break;
312 case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break;
313#if SYS_readahead
314 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
315#else
316 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
317#endif
318
319 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
320 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
321 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
322
323 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
324 case REQ_CLOSE: req->result = close (req->fd); break;
325 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
326
327 case REQ_FSYNC: req->result = fsync (req->fd); break;
328 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
329
330 case REQ_QUIT:
331 break;
332
333 default:
334 req->result = ENOSYS;
335 break;
336 }
337
338 req->errorno = errno;
339
340 pthread_mutex_lock (&reslock);
341
342 req->next = 0;
343
344 if (rese)
345 {
346 rese->next = req;
347 rese = req;
348 } 397 }
349 else 398 else
350 { 399 {
351 rese = ress = req; 400 sv_result = newSViv (req->result);
352 401 SvREADONLY_on (sv_result);
353 /* write a dummy byte to the pipe so fh becomes ready */
354 write (respipe [1], &respipe, 1);
355 } 402 }
356 403
357 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
513 rv = sv_2mortal (newRV_noinc ((SV *)hv));
514
515 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
516 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
517 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
518 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
519 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
520 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
521 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
522 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
523 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
524 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
525 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
526 }
527#endif
528
529 PUSHs (rv);
530 }
531
532 break;
533
534 case EIO_GROUP:
535 req->int1 = 2; /* mark group as finished */
536
537 if (req->sv1)
538 {
539 int i;
540 AV *av = (AV *)req->sv1;
541
542 EXTEND (SP, AvFILL (av) + 1);
543 for (i = 0; i <= AvFILL (av); ++i)
544 PUSHs (*av_fetch (av, i, 0));
545 }
546 break;
547
548 case EIO_NOP:
549 case EIO_BUSY:
550 break;
551
552 case EIO_READLINK:
553 case EIO_REALPATH:
554 if (req->result > 0)
555 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
556 break;
557
558 case EIO_STAT:
559 case EIO_LSTAT:
560 case EIO_FSTAT:
561 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
562
563 if (!(PL_laststatval = req->result))
564 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
565 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
566
567 PUSHs (sv_result);
568 break;
569
570 case EIO_SEEK:
571 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
572 break;
573
574 case EIO_READ:
575 {
576 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
577 *SvEND (req->sv2) = 0;
578 SvPOK_only (req->sv2);
579 SvSETMAGIC (req->sv2);
580 PUSHs (sv_result);
581 }
582 break;
583
584 case EIO_CUSTOM:
585 if (req->feed == fiemap)
586 {
587#if HAVE_FIEMAP
588 if (!req->result)
589 {
590 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
591
592 if (fiemap->fm_extent_count)
593 {
594 AV *av = newAV ();
595 int i;
596
597 while (fiemap->fm_mapped_extents)
598 {
599 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
600 AV *ext_av = newAV ();
601
602 av_store (ext_av, 3, newSVuv (extent->fe_flags));
603 av_store (ext_av, 2, newSVval64 (extent->fe_length));
604 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
605 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
606
607 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
608 }
609
610 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
611 }
612 else
613 {
614 SvIV_set (sv_result, fiemap->fm_mapped_extents);
615 PUSHs (sv_result);
616 }
617 }
618#endif
619 }
620 else
621 PUSHs (sv_result);
622 break;
623
624 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
625 if (req->result > 0)
626 SvIV_set (sv_result, 0);
627 /* FALLTHROUGH */
628
629 default:
630 PUSHs (sv_result);
631 break;
632 }
633
634 errno = req->errorno;
635
636 PUTBACK;
637 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
638 SPAGAIN;
639
640 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
641 SvREFCNT_dec (sv_result);
642 else
643 sv_result_cache = sv_result;
644
645 FREETMPS;
646 LEAVE;
647
648 PUTBACK;
358 } 649 }
359 while (type != REQ_QUIT); 650
651 return !!SvTRUE (ERRSV);
652}
653
654static void
655req_destroy (aio_req req)
656{
657 if (req->self)
658 {
659 sv_unmagic (req->self, PERL_MAGIC_ext);
660 SvREFCNT_dec (req->self);
661 }
662
663 SvREFCNT_dec (req->sv1);
664 SvREFCNT_dec (req->sv2);
665 SvREFCNT_dec (req->sv3);
666 SvREFCNT_dec (req->sv4);
667 SvREFCNT_dec (req->callback);
668
669 free (req);
670}
671
672static void
673req_cancel_subs (aio_req grp)
674{
675 if (grp->type != EIO_GROUP)
676 return;
677
678 SvREFCNT_dec (grp->sv2);
679 grp->sv2 = 0;
680
681 eio_grp_cancel (grp);
682}
683
684static void ecb_cold
685create_respipe (void)
686{
687 if (s_epipe_renew (&respipe))
688 croak ("IO::AIO: unable to initialize result pipe");
689}
690
691static void
692poll_wait (void)
693{
694 while (eio_nreqs ())
695 {
696 int size;
697
698 X_LOCK (reslock);
699 size = res_queue.size;
700 X_UNLOCK (reslock);
701
702 if (size)
703 return;
704
705 etp_maybe_start_thread ();
706
707 s_epipe_wait (&respipe);
708 }
709}
710
711static int
712poll_cb (void)
713{
714 for (;;)
715 {
716 int res = eio_poll ();
717
718 if (res > 0)
719 croak (0);
720
721 if (!max_outstanding || max_outstanding > eio_nreqs ())
722 return res;
723
724 poll_wait ();
725 }
726}
727
728static void ecb_cold
729reinit (void)
730{
731 create_respipe ();
732
733 if (eio_init (want_poll, done_poll) < 0)
734 croak ("IO::AIO: unable to initialise eio library");
735}
736
737/*****************************************************************************/
738
739#if !_POSIX_MAPPED_FILES
740# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
741# define munmap(addr,length) EIO_ENOSYS ()
742#endif
743
744#if !_POSIX_MEMORY_PROTECTION
745# define mprotect(addr,len,prot) EIO_ENOSYS ()
746# define PROT_NONE 0
747# define PROT_WRITE 0
748# define MAP_PRIVATE 0
749# define MAP_SHARED 0
750# define MAP_FIXED 0
751#endif
752
753#define MMAP_MAGIC PERL_MAGIC_ext
754
755static int ecb_cold
756mmap_free (pTHX_ SV *sv, MAGIC *mg)
757{
758 int old_errno = errno;
759 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
760 errno = old_errno;
761
762 mg->mg_obj = 0; /* just in case */
763
764 SvREADONLY_off (sv);
765
766 if (SvPVX (sv) != mg->mg_ptr)
767 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
768
769 SvCUR_set (sv, 0);
770 SvPVX (sv) = 0;
771 SvOK_off (sv);
360 772
361 return 0; 773 return 0;
362} 774}
363 775
776static MGVTBL mmap_vtbl = {
777 0, 0, 0, 0, mmap_free
778};
779
780/*****************************************************************************/
781
782static SV *
783get_cb (SV *cb_sv)
784{
785 SvGETMAGIC (cb_sv);
786 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
787}
788
789static aio_req ecb_noinline
790dreq (SV *callback)
791{
792 SV *cb_cv;
793 aio_req req;
794 int req_pri = next_pri;
795 next_pri = EIO_PRI_DEFAULT;
796
797 cb_cv = get_cb (callback);
798
799 req = calloc (sizeof (*req), 1);
800 if (!req)
801 croak ("out of memory during eio_req allocation");
802
803 req->callback = SvREFCNT_inc (cb_cv);
804 req->pri = req_pri;
805
806 return req;
807}
808
809#define dREQ \
810 aio_req req = dreq (callback); \
811
812#define REQ_SEND \
813 PUTBACK; \
814 req_submit (req); \
815 SPAGAIN; \
816 \
817 if (GIMME_V != G_VOID) \
818 XPUSHs (req_sv (req, aio_req_stash));
819
820ecb_inline void
821req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
822{
823 if (expect_false (SvROK (path)))
824 {
825 SV *rv = SvRV (path);
826 SV *wdob;
827
828 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
829 {
830 path = AvARRAY (rv)[1];
831 wdob = AvARRAY (rv)[0];
832
833 if (SvOK (wdob))
834 {
835 *wd = SvAIO_WD (wdob);
836 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
837 }
838 else
839 *wd = EIO_INVALID_WD;
840 }
841 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
842 {
843 *wd = (aio_wd)(long)SvIVX (rv);
844 *wdsv = SvREFCNT_inc_NN (rv);
845 *ptr = ".";
846 return; /* path set to "." */
847 }
848 else
849 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
850 }
851
852 *pathsv = newSVsv (path);
853 *ptr = SvPVbyte_nolen (*pathsv);
854}
855
856static void ecb_noinline
857req_set_path1 (aio_req req, SV *path)
858{
859 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
860}
861
862static void ecb_noinline
863req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
864{
865 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
866
867 switch (SvTYPE (rv))
868 {
869 case SVt_PVIO:
870 case SVt_PVLV:
871 case SVt_PVGV:
872 req->type = type_fh;
873 req->sv1 = newSVsv (fh_or_path);
874 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
875 break;
876
877 default:
878 req->type = type_path;
879 req_set_path1 (req, fh_or_path);
880 break;
881 }
882}
883
884XS(boot_IO__AIO) ecb_cold;
885
364MODULE = IO::AIO PACKAGE = IO::AIO 886MODULE = IO::AIO PACKAGE = IO::AIO
365 887
888PROTOTYPES: ENABLE
889
366BOOT: 890BOOT:
367{ 891{
368 if (pipe (respipe)) 892 static const struct {
369 croak ("unable to initialize result pipe"); 893 const char *name;
894 IV iv;
895 } *civ, const_iv[] = {
896# define const_niv(name, value) { # name, (IV) value },
897# define const_iv(name) { # name, (IV) name },
898# define const_eio(name) { # name, (IV) EIO_ ## name },
370 899
371 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 900 /* you have to re-run ./gendef0 after adding/Removing any constants here */
372 croak ("cannot set result pipe to nonblocking mode");
373 901
374 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 902 const_iv (ENOSYS)
375 croak ("cannot set result pipe to nonblocking mode"); 903 const_iv (EXDEV)
376} 904 const_iv (EBADR)
377 905
906 const_iv (O_RDONLY)
907 const_iv (O_WRONLY)
908 const_iv (O_RDWR)
909 const_iv (O_CREAT)
910 const_iv (O_TRUNC)
911 const_iv (O_EXCL)
912 const_iv (O_APPEND)
913
914 const_iv (O_ASYNC)
915 const_iv (O_DIRECT)
916 const_iv (O_NOATIME)
917
918 const_iv (O_CLOEXEC)
919 const_iv (O_NOCTTY)
920 const_iv (O_NOFOLLOW)
921 const_iv (O_NONBLOCK)
922 const_iv (O_EXEC)
923 const_iv (O_SEARCH)
924 const_iv (O_DIRECTORY)
925 const_iv (O_DSYNC)
926 const_iv (O_RSYNC)
927 const_iv (O_SYNC)
928 const_iv (O_TTY_INIT)
929
930 const_iv (S_IFIFO)
931 const_iv (S_IFCHR)
932 const_iv (S_IFBLK)
933 const_iv (S_IFLNK)
934 const_iv (S_IFREG)
935 const_iv (S_IFDIR)
936 const_iv (S_IFWHT)
937 const_iv (S_IFSOCK)
938 const_iv (S_IFMT)
939
940 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
941 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
942 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
943 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
944 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
945 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
946
947 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
948 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
949 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
950 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
951 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
952
953 const_iv (ST_RDONLY)
954 const_iv (ST_NOSUID)
955 const_iv (ST_NODEV)
956 const_iv (ST_NOEXEC)
957 const_iv (ST_SYNCHRONOUS)
958 const_iv (ST_MANDLOCK)
959 const_iv (ST_WRITE)
960 const_iv (ST_APPEND)
961 const_iv (ST_IMMUTABLE)
962 const_iv (ST_NOATIME)
963 const_iv (ST_NODIRATIME)
964 const_iv (ST_RELATIME)
965
966 const_iv (PROT_NONE)
967 const_iv (PROT_EXEC)
968 const_iv (PROT_READ)
969 const_iv (PROT_WRITE)
970
971 /*const_iv (MAP_FIXED)*/
972 const_iv (MAP_PRIVATE)
973 const_iv (MAP_SHARED)
974 const_iv (MAP_ANONYMOUS)
975
976 /* linuxish */
977 const_iv (MAP_HUGETLB)
978 const_iv (MAP_LOCKED)
979 const_iv (MAP_NORESERVE)
980 const_iv (MAP_POPULATE)
981 const_iv (MAP_NONBLOCK)
982
983 const_iv (FIEMAP_FLAG_SYNC)
984 const_iv (FIEMAP_FLAG_XATTR)
985 const_iv (FIEMAP_FLAGS_COMPAT)
986 const_iv (FIEMAP_EXTENT_LAST)
987 const_iv (FIEMAP_EXTENT_UNKNOWN)
988 const_iv (FIEMAP_EXTENT_DELALLOC)
989 const_iv (FIEMAP_EXTENT_ENCODED)
990 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
991 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
992 const_iv (FIEMAP_EXTENT_DATA_INLINE)
993 const_iv (FIEMAP_EXTENT_DATA_TAIL)
994 const_iv (FIEMAP_EXTENT_UNWRITTEN)
995 const_iv (FIEMAP_EXTENT_MERGED)
996 const_iv (FIEMAP_EXTENT_SHARED)
997
998 const_iv (SPLICE_F_MOVE)
999 const_iv (SPLICE_F_NONBLOCK)
1000 const_iv (SPLICE_F_MORE)
1001 const_iv (SPLICE_F_GIFT)
1002
1003 const_iv (SEEK_DATA)
1004 const_iv (SEEK_HOLE)
1005
1006 /* libeio constants */
1007 const_eio (SEEK_SET)
1008 const_eio (SEEK_CUR)
1009 const_eio (SEEK_END)
1010
1011 const_eio (MCL_FUTURE)
1012 const_eio (MCL_CURRENT)
1013
1014 const_eio (MS_ASYNC)
1015 const_eio (MS_INVALIDATE)
1016 const_eio (MS_SYNC)
1017
1018 const_eio (MT_MODIFY)
1019
1020 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1021 const_eio (SYNC_FILE_RANGE_WRITE)
1022 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1023
1024 const_eio (FALLOC_FL_KEEP_SIZE)
1025 const_eio (FALLOC_FL_PUNCH_HOLE)
1026
1027 const_eio (READDIR_DENTS)
1028 const_eio (READDIR_DIRS_FIRST)
1029 const_eio (READDIR_STAT_ORDER)
1030 const_eio (READDIR_FOUND_UNKNOWN)
1031
1032 const_eio (DT_UNKNOWN)
1033 const_eio (DT_FIFO)
1034 const_eio (DT_CHR)
1035 const_eio (DT_DIR)
1036 const_eio (DT_BLK)
1037 const_eio (DT_REG)
1038 const_eio (DT_LNK)
1039 const_eio (DT_SOCK)
1040 const_eio (DT_WHT)
1041 };
1042
1043 aio_stash = gv_stashpv ("IO::AIO" , 1);
1044 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1045 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1046 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1047
1048 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1049 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1050
1051 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1052
1053 reinit ();
1054}
1055
378void 1056void
379min_parallel(nthreads) 1057reinit ()
380 int nthreads 1058 PROTOTYPE:
1059
1060void
1061max_poll_reqs (unsigned int nreqs)
381 PROTOTYPE: $ 1062 PROTOTYPE: $
382 CODE: 1063 CODE:
383 while (nthreads > started) 1064 eio_set_max_poll_reqs (nreqs);
384 start_thread ();
385 1065
386void 1066void
387max_parallel(nthreads) 1067max_poll_time (double nseconds)
388 int nthreads
389 PROTOTYPE: $ 1068 PROTOTYPE: $
390 CODE: 1069 CODE:
1070 eio_set_max_poll_time (nseconds);
1071
1072void
1073min_parallel (unsigned int nthreads)
1074 PROTOTYPE: $
1075 CODE:
1076 eio_set_min_parallel (nthreads);
1077
1078void
1079max_parallel (unsigned int nthreads)
1080 PROTOTYPE: $
1081 CODE:
1082 eio_set_max_parallel (nthreads);
1083
1084void
1085max_idle (unsigned int nthreads)
1086 PROTOTYPE: $
1087 CODE:
1088 eio_set_max_idle (nthreads);
1089
1090void
1091idle_timeout (unsigned int seconds)
1092 PROTOTYPE: $
1093 CODE:
1094 eio_set_idle_timeout (seconds);
1095
1096void
1097max_outstanding (unsigned int maxreqs)
1098 PROTOTYPE: $
1099 CODE:
1100 max_outstanding = maxreqs;
1101
1102void
1103aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1104 PPCODE:
391{ 1105{
392 int cur = started; 1106 dREQ;
393 while (cur > nthreads) 1107
394 { 1108 req->type = EIO_WD_OPEN;
395 end_thread (); 1109 req_set_path1 (req, pathname);
1110
1111 REQ_SEND;
1112}
1113
1114void
1115aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1116 PPCODE:
1117{
1118 dREQ;
1119
1120 req->type = EIO_OPEN;
1121 req_set_path1 (req, pathname);
1122 req->int1 = flags;
1123 req->int2 = mode;
1124
1125 REQ_SEND;
1126}
1127
1128void
1129aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1130 ALIAS:
1131 aio_fsync = EIO_FSYNC
1132 aio_fdatasync = EIO_FDATASYNC
1133 aio_syncfs = EIO_SYNCFS
1134 PPCODE:
1135{
1136 int fd = s_fileno_croak (fh, 0);
1137 dREQ;
1138
1139 req->type = ix;
1140 req->sv1 = newSVsv (fh);
1141 req->int1 = fd;
1142
1143 REQ_SEND;
1144}
1145
1146void
1147aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1148 PPCODE:
1149{
1150 int fd = s_fileno_croak (fh, 0);
1151 dREQ;
1152
1153 req->type = EIO_SYNC_FILE_RANGE;
1154 req->sv1 = newSVsv (fh);
1155 req->int1 = fd;
1156 req->offs = offset;
1157 req->size = nbytes;
1158 req->int2 = flags;
1159
1160 REQ_SEND;
1161}
1162
1163void
1164aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1165 PPCODE:
1166{
1167 int fd = s_fileno_croak (fh, 0);
1168 dREQ;
1169
1170 req->type = EIO_FALLOCATE;
1171 req->sv1 = newSVsv (fh);
1172 req->int1 = fd;
1173 req->int2 = mode;
1174 req->offs = offset;
1175 req->size = len;
1176
1177 REQ_SEND;
1178}
1179
1180void
1181aio_close (SV *fh, SV *callback=&PL_sv_undef)
1182 PPCODE:
1183{
1184 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1185 int fd = s_fileno_croak (fh, 0);
1186 dREQ;
1187
1188 if (expect_false (close_fd < 0))
1189 {
1190 int pipefd [2];
1191
1192 if (
1193#ifdef _WIN32
1194 _pipe (pipefd, 1, _O_BINARY) < 0
1195#else
1196 pipe (pipefd) < 0
1197 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1198#endif
1199 || close (pipefd [1]) < 0
396 cur--; 1200 )
1201 abort (); /*D*/
1202
1203 close_fd = pipefd [0];
397 } 1204 }
398 1205
399 while (started > nthreads) 1206 req->type = EIO_DUP2;
1207 req->int1 = close_fd;
1208 req->sv2 = newSVsv (fh);
1209 req->int2 = fd;
1210
1211 REQ_SEND;
1212}
1213
1214void
1215aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1216 PPCODE:
1217{
1218 int fd = s_fileno_croak (fh, 0);
1219 dREQ;
1220
1221 req->type = EIO_SEEK;
1222 req->sv1 = newSVsv (fh);
1223 req->int1 = fd;
1224 req->offs = SvVAL64 (offset);
1225 req->int2 = whence;
1226
1227 REQ_SEND;
1228}
1229
1230void
1231aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1232 ALIAS:
1233 aio_read = EIO_READ
1234 aio_write = EIO_WRITE
1235 PPCODE:
1236{
1237 STRLEN svlen;
1238 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1239 char *svptr = SvPVbyte (data, svlen);
1240 UV len = SvUV (length);
1241
1242 if (dataoffset < 0)
1243 dataoffset += svlen;
1244
1245 if (dataoffset < 0 || dataoffset > svlen)
1246 croak ("dataoffset outside of data scalar");
1247
1248 if (ix == EIO_WRITE)
1249 {
1250 /* write: check length and adjust. */
1251 if (!SvOK (length) || len + dataoffset > svlen)
1252 len = svlen - dataoffset;
1253 }
1254 else
1255 {
1256 /* read: check type and grow scalar as necessary */
1257 SvUPGRADE (data, SVt_PV);
1258 if (SvLEN (data) >= SvCUR (data))
1259 svptr = SvGROW (data, len + dataoffset + 1);
1260 else if (SvCUR (data) < len + dataoffset)
1261 croak ("length + dataoffset outside of scalar, and cannot grow");
1262 }
1263
1264 {
1265 dREQ;
1266
1267 req->type = ix;
1268 req->sv1 = newSVsv (fh);
1269 req->int1 = fd;
1270 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1271 req->size = len;
1272 req->sv2 = SvREFCNT_inc (data);
1273 req->ptr2 = (char *)svptr + dataoffset;
1274 req->stroffset = dataoffset;
1275
1276 if (!SvREADONLY (data))
1277 {
1278 SvREADONLY_on (data);
1279 req->flags |= FLAG_SV2_RO_OFF;
1280 }
1281
1282 REQ_SEND;
1283 }
1284}
1285
1286void
1287aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1288 ALIAS:
1289 aio_readlink = EIO_READLINK
1290 aio_realpath = EIO_REALPATH
1291 PPCODE:
1292{
1293 dREQ;
1294
1295 req->type = ix;
1296 req_set_path1 (req, pathname);
1297
1298 REQ_SEND;
1299}
1300
1301void
1302aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1303 PPCODE:
1304{
1305 int ifd = s_fileno_croak (in_fh , 0);
1306 int ofd = s_fileno_croak (out_fh, 1);
1307 dREQ;
1308
1309 req->type = EIO_SENDFILE;
1310 req->sv1 = newSVsv (out_fh);
1311 req->int1 = ofd;
1312 req->sv2 = newSVsv (in_fh);
1313 req->int2 = ifd;
1314 req->offs = in_offset;
1315 req->size = length;
1316
1317 REQ_SEND;
1318}
1319
1320void
1321aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1322 PPCODE:
1323{
1324 int fd = s_fileno_croak (fh, 0);
1325 dREQ;
1326
1327 req->type = EIO_READAHEAD;
1328 req->sv1 = newSVsv (fh);
1329 req->int1 = fd;
1330 req->offs = offset;
1331 req->size = length;
1332
1333 REQ_SEND;
1334}
1335
1336void
1337aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1338 ALIAS:
1339 aio_stat = EIO_STAT
1340 aio_lstat = EIO_LSTAT
1341 aio_statvfs = EIO_STATVFS
1342 PPCODE:
1343{
1344 dREQ;
1345
1346 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1347
1348 REQ_SEND;
1349}
1350
1351UV
1352major (UV dev)
1353 ALIAS:
1354 minor = 1
1355 CODE:
1356 RETVAL = ix ? major (dev) : minor (dev);
1357 OUTPUT:
1358 RETVAL
1359
1360UV
1361makedev (UV maj, UV min)
1362 CODE:
1363 RETVAL = makedev (maj, min);
1364 OUTPUT:
1365 RETVAL
1366
1367void
1368aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1369 PPCODE:
1370{
1371 dREQ;
1372
1373 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1374 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1375 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1376
1377 REQ_SEND;
1378}
1379
1380void
1381aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1382 PPCODE:
1383{
1384 dREQ;
1385
1386 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1387 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1388
1389 REQ_SEND;
1390}
1391
1392void
1393aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1394 PPCODE:
1395{
1396 dREQ;
1397
1398 req->int2 = mode;
1399 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1400
1401 REQ_SEND;
1402}
1403
1404void
1405aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1406 PPCODE:
1407{
1408 dREQ;
1409
1410 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1411 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1412 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1413
1414 REQ_SEND;
1415}
1416
1417void
1418aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1419 PPCODE:
1420{
1421 dREQ;
1422
1423 req->type = EIO_READDIR;
1424 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1425
1426 if (flags & EIO_READDIR_DENTS)
1427 req->int1 |= EIO_READDIR_CUSTOM2;
1428
1429 req_set_path1 (req, pathname);
1430
1431 REQ_SEND;
1432}
1433
1434void
1435aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1436 PPCODE:
1437{
1438 dREQ;
1439
1440 req->type = EIO_MKDIR;
1441 req->int2 = mode;
1442 req_set_path1 (req, pathname);
1443
1444 REQ_SEND;
1445}
1446
1447void
1448aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1449 ALIAS:
1450 aio_unlink = EIO_UNLINK
1451 aio_rmdir = EIO_RMDIR
1452 aio_readdir = EIO_READDIR
1453 PPCODE:
1454{
1455 dREQ;
1456
1457 req->type = ix;
1458 req_set_path1 (req, pathname);
1459
1460 REQ_SEND;
1461}
1462
1463void
1464aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1465 ALIAS:
1466 aio_link = EIO_LINK
1467 aio_symlink = EIO_SYMLINK
1468 aio_rename = EIO_RENAME
1469 PPCODE:
1470{
1471 eio_wd wd2 = 0;
1472 dREQ;
1473
1474 req->type = ix;
1475 req_set_path1 (req, oldpath);
1476 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1477 req->int3 = (long)wd2;
1478
1479 REQ_SEND;
1480}
1481
1482void
1483aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1484 PPCODE:
1485{
1486 dREQ;
1487
1488 req->type = EIO_MKNOD;
1489 req->int2 = (mode_t)mode;
1490 req->offs = dev;
1491 req_set_path1 (req, pathname);
1492
1493 REQ_SEND;
1494}
1495
1496void
1497aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1498 ALIAS:
1499 aio_mtouch = EIO_MTOUCH
1500 aio_msync = EIO_MSYNC
1501 PPCODE:
1502{
1503 STRLEN svlen;
1504 char *svptr = SvPVbyte (data, svlen);
1505 UV len = SvUV (length);
1506
1507 if (offset < 0)
1508 offset += svlen;
1509
1510 if (offset < 0 || offset > svlen)
1511 croak ("offset outside of scalar");
1512
1513 if (!SvOK (length) || len + offset > svlen)
1514 len = svlen - offset;
1515
1516 {
1517 dREQ;
1518
1519 req->type = ix;
1520 req->sv2 = SvREFCNT_inc (data);
1521 req->ptr2 = (char *)svptr + offset;
1522 req->size = len;
1523 req->int1 = flags;
1524
1525 REQ_SEND;
1526 }
1527}
1528
1529void
1530aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1531 PPCODE:
1532{
1533 STRLEN svlen;
1534 char *svptr = SvPVbyte (data, svlen);
1535 UV len = SvUV (length);
1536
1537 if (offset < 0)
1538 offset += svlen;
1539
1540 if (offset < 0 || offset > svlen)
1541 croak ("offset outside of scalar");
1542
1543 if (!SvOK (length) || len + offset > svlen)
1544 len = svlen - offset;
1545
1546 {
1547 dREQ;
1548
1549 req->type = EIO_MLOCK;
1550 req->sv2 = SvREFCNT_inc (data);
1551 req->ptr2 = (char *)svptr + offset;
1552 req->size = len;
1553
1554 REQ_SEND;
1555 }
1556}
1557
1558void
1559aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1560 PPCODE:
1561{
1562 dREQ;
1563
1564 req->type = EIO_MLOCKALL;
1565 req->int1 = flags;
1566
1567 REQ_SEND;
1568}
1569
1570void
1571aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1572 PPCODE:
1573{
1574 int fd = s_fileno_croak (fh, 0);
1575 dREQ;
1576
1577 req->type = EIO_CUSTOM;
1578 req->sv1 = newSVsv (fh);
1579 req->int1 = fd;
1580
1581 req->feed = fiemap;
1582#if HAVE_FIEMAP
1583 /* keep our fingers crossed that the next two types are 64 bit */
1584 req->offs = start;
1585 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1586 req->int2 = flags;
1587 req->int3 = SvOK (count) ? SvIV (count) : -1;
1588#endif
1589
1590 REQ_SEND;
1591}
1592
1593void
1594aio_busy (double delay, SV *callback=&PL_sv_undef)
1595 PPCODE:
1596{
1597 dREQ;
1598
1599 req->type = EIO_BUSY;
1600 req->nv1 = delay < 0. ? 0. : delay;
1601
1602 REQ_SEND;
1603}
1604
1605void
1606aio_group (SV *callback=&PL_sv_undef)
1607 PPCODE:
1608{
1609 dREQ;
1610
1611 req->type = EIO_GROUP;
1612
1613 req_submit (req);
1614 XPUSHs (req_sv (req, aio_grp_stash));
1615}
1616
1617void
1618aio_nop (SV *callback=&PL_sv_undef)
1619 ALIAS:
1620 aio_nop = EIO_NOP
1621 aio_sync = EIO_SYNC
1622 PPCODE:
1623{
1624 dREQ;
1625
1626 req->type = ix;
1627
1628 REQ_SEND;
1629}
1630
1631int
1632aioreq_pri (int pri = 0)
1633 CODE:
1634 RETVAL = next_pri;
1635 if (items > 0)
1636 {
1637 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1638 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1639 next_pri = pri;
1640 }
1641 OUTPUT:
1642 RETVAL
1643
1644void
1645aioreq_nice (int nice = 0)
1646 CODE:
1647 nice = next_pri - nice;
1648 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1649 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1650 next_pri = nice;
1651
1652void
1653flush ()
1654 CODE:
1655 while (eio_nreqs ())
400 { 1656 {
401 poll_wait (); 1657 poll_wait ();
402 poll_cb (); 1658 poll_cb ();
403 } 1659 }
404}
405 1660
406int 1661int
407max_outstanding(nreqs) 1662poll ()
408 int nreqs
409 PROTOTYPE: $
410 CODE:
411 RETVAL = max_outstanding;
412 max_outstanding = nreqs;
413
414void
415aio_open(pathname,flags,mode,callback)
416 SV * pathname
417 int flags
418 int mode
419 SV * callback
420 PROTOTYPE: $$$$
421 CODE: 1663 CODE:
422{
423 aio_req req;
424
425 Newz (0, req, 1, aio_cb);
426
427 if (!req)
428 croak ("out of memory during aio_req allocation");
429
430 req->type = REQ_OPEN;
431 req->data = newSVsv (pathname);
432 req->dataptr = SvPV_nolen (req->data);
433 req->fd = flags;
434 req->mode = mode;
435 req->callback = SvREFCNT_inc (callback);
436
437 send_req (req);
438}
439
440void
441aio_close(fh,callback)
442 InputStream fh
443 SV * callback
444 PROTOTYPE: $$
445 ALIAS:
446 aio_close = REQ_CLOSE
447 aio_fsync = REQ_FSYNC
448 aio_fdatasync = REQ_FDATASYNC
449 CODE:
450{
451 aio_req req;
452
453 Newz (0, req, 1, aio_cb);
454
455 if (!req)
456 croak ("out of memory during aio_req allocation");
457
458 req->type = ix;
459 req->fd = PerlIO_fileno (fh);
460 req->callback = SvREFCNT_inc (callback);
461
462 send_req (req);
463}
464
465void
466aio_read(fh,offset,length,data,dataoffset,callback)
467 InputStream fh
468 UV offset
469 IV length
470 SV * data
471 IV dataoffset
472 SV * callback
473 PROTOTYPE: $$$$$$
474 CODE:
475 read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
476
477void
478aio_write(fh,offset,length,data,dataoffset,callback)
479 OutputStream fh
480 UV offset
481 IV length
482 SV * data
483 IV dataoffset
484 SV * callback
485 PROTOTYPE: $$$$$$
486 CODE:
487 read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
488
489void
490aio_readahead(fh,offset,length,callback)
491 InputStream fh
492 UV offset
493 IV length
494 SV * callback
495 PROTOTYPE: $$$$
496 CODE:
497{
498 aio_req req;
499
500 if (length < 0)
501 croak ("length must not be negative");
502
503 Newz (0, req, 1, aio_cb);
504
505 if (!req)
506 croak ("out of memory during aio_req allocation");
507
508 req->type = REQ_READAHEAD;
509 req->fd = PerlIO_fileno (fh);
510 req->offset = offset;
511 req->length = length;
512 req->callback = SvREFCNT_inc (callback);
513
514 send_req (req);
515}
516
517void
518aio_stat(fh_or_path,callback)
519 SV * fh_or_path
520 SV * callback
521 PROTOTYPE: $$
522 ALIAS:
523 aio_lstat = 1
524 CODE:
525{
526 aio_req req;
527
528 Newz (0, req, 1, aio_cb);
529
530 if (!req)
531 croak ("out of memory during aio_req allocation");
532
533 New (0, req->statdata, 1, Stat_t);
534
535 if (!req->statdata)
536 croak ("out of memory during aio_req->statdata allocation");
537
538 if (SvPOK (fh_or_path))
539 {
540 req->type = ix ? REQ_LSTAT : REQ_STAT;
541 req->data = newSVsv (fh_or_path);
542 req->dataptr = SvPV_nolen (req->data);
543 }
544 else
545 {
546 req->type = REQ_FSTAT;
547 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
548 }
549
550 req->callback = SvREFCNT_inc (callback);
551
552 send_req (req);
553}
554
555void
556aio_unlink(pathname,callback)
557 SV * pathname
558 SV * callback
559 PROTOTYPE: $$
560 CODE:
561{
562 aio_req req;
563
564 Newz (0, req, 1, aio_cb);
565
566 if (!req)
567 croak ("out of memory during aio_req allocation");
568
569 req->type = REQ_UNLINK;
570 req->data = newSVsv (pathname);
571 req->dataptr = SvPV_nolen (req->data);
572 req->callback = SvREFCNT_inc (callback);
573
574 send_req (req);
575}
576
577void
578flush()
579 PROTOTYPE:
580 CODE:
581 while (nreqs)
582 {
583 poll_wait (); 1664 poll_wait ();
584 poll_cb (); 1665 RETVAL = poll_cb ();
585 }
586
587int
588poll_fileno()
589 PROTOTYPE:
590 CODE:
591 RETVAL = respipe [0];
592 OUTPUT: 1666 OUTPUT:
593 RETVAL 1667 RETVAL
594 1668
595int 1669int
1670poll_fileno ()
1671 CODE:
1672 RETVAL = s_epipe_fd (&respipe);
1673 OUTPUT:
1674 RETVAL
1675
1676int
596poll_cb(...) 1677poll_cb (...)
597 PROTOTYPE: 1678 PROTOTYPE:
598 CODE: 1679 CODE:
599 RETVAL = poll_cb (); 1680 RETVAL = poll_cb ();
600 OUTPUT: 1681 OUTPUT:
601 RETVAL 1682 RETVAL
602 1683
603void 1684void
604poll_wait() 1685poll_wait ()
605 PROTOTYPE:
606 CODE: 1686 CODE:
607 if (nreqs)
608 poll_wait (); 1687 poll_wait ();
609 1688
610int 1689int
611nreqs() 1690nreqs ()
612 PROTOTYPE:
613 CODE: 1691 CODE:
614 RETVAL = nreqs; 1692 RETVAL = eio_nreqs ();
615 OUTPUT: 1693 OUTPUT:
616 RETVAL 1694 RETVAL
617 1695
1696int
1697nready ()
1698 CODE:
1699 RETVAL = eio_nready ();
1700 OUTPUT:
1701 RETVAL
1702
1703int
1704npending ()
1705 CODE:
1706 RETVAL = eio_npending ();
1707 OUTPUT:
1708 RETVAL
1709
1710int
1711nthreads ()
1712 CODE:
1713 RETVAL = eio_nthreads ();
1714 OUTPUT:
1715 RETVAL
1716
1717int
1718fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1719 CODE:
1720 RETVAL = posix_fadvise (fh, offset, length, advice);
1721 OUTPUT:
1722 RETVAL
1723
1724IV
1725sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1726 CODE:
1727 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1728 OUTPUT:
1729 RETVAL
1730
1731void
1732mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1733 PPCODE:
1734 sv_unmagic (scalar, MMAP_MAGIC);
1735{
1736 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1737 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1738 if (addr == (void *)-1)
1739 XSRETURN_NO;
1740
1741 sv_force_normal (scalar);
1742
1743 /* we store the length in mg_obj, as namlen is I32 :/ */
1744 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1745 ->mg_obj = (SV *)length;
1746
1747 SvUPGRADE (scalar, SVt_PV); /* nop... */
1748
1749 if (!(prot & PROT_WRITE))
1750 SvREADONLY_on (scalar);
1751
1752 if (SvLEN (scalar))
1753 Safefree (SvPVX (scalar));
1754
1755 SvPVX (scalar) = (char *)addr;
1756 SvCUR_set (scalar, length);
1757 SvLEN_set (scalar, 0);
1758 SvPOK_only (scalar);
1759
1760 XSRETURN_YES;
1761}
1762
1763void
1764munmap (SV *scalar)
1765 CODE:
1766 sv_unmagic (scalar, MMAP_MAGIC);
1767
1768int
1769madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1770 ALIAS:
1771 mprotect = 1
1772 CODE:
1773{
1774 STRLEN svlen;
1775 void *addr = SvPVbyte (scalar, svlen);
1776 size_t len = SvUV (length);
1777
1778 if (offset < 0)
1779 offset += svlen;
1780
1781 if (offset < 0 || offset > svlen)
1782 croak ("offset outside of scalar");
1783
1784 if (!SvOK (length) || len + offset > svlen)
1785 len = svlen - offset;
1786
1787 addr = (void *)(((intptr_t)addr) + offset);
1788 eio_page_align (&addr, &len);
1789
1790 switch (ix)
1791 {
1792 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1793 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1794 }
1795}
1796 OUTPUT:
1797 RETVAL
1798
1799int
1800munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1801 CODE:
1802{
1803 STRLEN svlen;
1804 void *addr = SvPVbyte (scalar, svlen);
1805 size_t len = SvUV (length);
1806
1807 if (offset < 0)
1808 offset += svlen;
1809
1810 if (offset < 0 || offset > svlen)
1811 croak ("offset outside of scalar");
1812
1813 if (!SvOK (length) || len + offset > svlen)
1814 len = svlen - offset;
1815
1816 addr = (void *)(((intptr_t)addr) + offset);
1817 eio_page_align (&addr, &len);
1818#if _POSIX_MEMLOCK_RANGE
1819 RETVAL = munlock (addr, len);
1820#else
1821 RETVAL = EIO_ENOSYS ();
1822#endif
1823}
1824 OUTPUT:
1825 RETVAL
1826
1827int
1828munlockall ()
1829 CODE:
1830#if _POSIX_MEMLOCK
1831 munlockall ();
1832#else
1833 RETVAL = EIO_ENOSYS ();
1834#endif
1835 OUTPUT:
1836 RETVAL
1837
1838int
1839splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1840 CODE:
1841{
1842#if HAVE_LINUX_SPLICE
1843 loff_t off_in_, off_out_;
1844 RETVAL = splice (
1845 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1846 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1847 length, flags
1848 );
1849#else
1850 RETVAL = EIO_ENOSYS ();
1851#endif
1852}
1853 OUTPUT:
1854 RETVAL
1855
1856int
1857tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1858 CODE:
1859#if HAVE_LINUX_SPLICE
1860 RETVAL = tee (rfh, wfh, length, flags);
1861#else
1862 RETVAL = EIO_ENOSYS ();
1863#endif
1864 OUTPUT:
1865 RETVAL
1866
1867void _on_next_submit (SV *cb)
1868 CODE:
1869 SvREFCNT_dec (on_next_submit);
1870 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1871
1872PROTOTYPES: DISABLE
1873
1874MODULE = IO::AIO PACKAGE = IO::AIO::WD
1875
1876BOOT:
1877{
1878 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1879 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1880}
1881
1882void
1883DESTROY (SV *self)
1884 CODE:
1885{
1886 aio_wd wd = SvAIO_WD (self);
1887#if HAVE_AT
1888 {
1889 SV *callback = &PL_sv_undef;
1890 dREQ; /* clobbers next_pri :/ */
1891 next_pri = req->pri; /* restore next_pri */
1892 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1893 req->type = EIO_WD_CLOSE;
1894 req->wd = wd;
1895 REQ_SEND;
1896 }
1897#else
1898 eio_wd_close_sync (wd);
1899#endif
1900}
1901
1902MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1903
1904void
1905cancel (aio_req_ornot req)
1906 CODE:
1907 eio_cancel (req);
1908
1909void
1910cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1911 PPCODE:
1912{
1913 if (GIMME_V != G_VOID)
1914 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1915
1916 if (items > 1)
1917 {
1918 SV *cb_cv =get_cb (callback);
1919
1920 SvREFCNT_dec (req->callback);
1921 req->callback = SvREFCNT_inc (cb_cv);
1922 }
1923}
1924
1925MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1926
1927void
1928add (aio_req grp, ...)
1929 PPCODE:
1930{
1931 int i;
1932
1933 if (grp->int1 == 2)
1934 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1935
1936 for (i = 1; i < items; ++i )
1937 {
1938 aio_req req;
1939
1940 if (GIMME_V != G_VOID)
1941 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1942
1943 req = SvAIO_REQ (ST (i));
1944
1945 if (req)
1946 eio_grp_add (grp, req);
1947 }
1948}
1949
1950void
1951cancel_subs (aio_req_ornot req)
1952 CODE:
1953 req_cancel_subs (req);
1954
1955void
1956result (aio_req grp, ...)
1957 CODE:
1958{
1959 int i;
1960 AV *av;
1961
1962 grp->errorno = errno;
1963
1964 av = newAV ();
1965 av_extend (av, items - 1);
1966
1967 for (i = 1; i < items; ++i )
1968 av_push (av, newSVsv (ST (i)));
1969
1970 SvREFCNT_dec (grp->sv1);
1971 grp->sv1 = (SV *)av;
1972}
1973
1974void
1975errno (aio_req grp, int errorno = errno)
1976 CODE:
1977 grp->errorno = errorno;
1978
1979void
1980limit (aio_req grp, int limit)
1981 CODE:
1982 eio_grp_limit (grp, limit);
1983
1984void
1985feed (aio_req grp, SV *callback=&PL_sv_undef)
1986 CODE:
1987{
1988 SvREFCNT_dec (grp->sv2);
1989 grp->sv2 = newSVsv (callback);
1990 grp->feed = aio_grp_feed;
1991
1992 if (grp->int2 <= 0)
1993 grp->int2 = 2;
1994
1995 eio_grp_limit (grp, grp->int2);
1996}
1997

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