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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.4 by root, Sun Jul 10 20:57:00 2005 UTC vs.
Revision 1.232 by root, Sat Jun 13 00:06:13 2015 UTC

1#define PERL_NO_GET_CONTEXT 1#include "libeio/xthread.h"
2
3#include <errno.h>
2 4
3#include "EXTERN.h" 5#include "EXTERN.h"
4#include "perl.h" 6#include "perl.h"
5#include "XSUB.h" 7#include "XSUB.h"
6 8
9#include "schmorp.h"
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#include <unistd.h> 16#include <limits.h>
10#include <fcntl.h> 17#include <fcntl.h>
11#include <signal.h>
12#include <sched.h> 18#include <sched.h>
13#include <endian.h>
14 19
15#include <pthread.h> 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
16#include <sys/syscall.h> 21# include <sys/mman.h>
22#endif
17 23
18typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 24/* the incompetent fool that created musl keeps __linux__, refuses
19typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 25 * to implement any linux standard apis, and also has no way to test
20typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 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
34# endif
35#endif
21 36
22#if __ia64 37/* perl namespace pollution */
23# define STACKSIZE 65536 38#undef VERSION
39
40/* perl stupidly overrides readdir and maybe others */
41/* with thread-unsafe versions, imagine that :( */
42#undef readdir
43#undef opendir
44#undef closedir
45
46#ifdef _WIN32
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
24#else 83#else
25# 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 */
26#endif 146# endif
147#endif
27 148
28enum { 149/* defines all sorts of constants to 0 unless they are already defined */
29 REQ_QUIT, 150#include "def0.h"
30 REQ_OPEN, REQ_CLOSE,
31 REQ_READ, REQ_WRITE, REQ_READAHEAD,
32 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,
33 REQ_FSYNC, REQ_FDATASYNC,
34};
35 151
36typedef struct aio_cb { 152#ifndef makedev
37 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
38 161
39 int type; 162#if PAGESIZE <= 0
163# define PAGESIZE sysconf (_SC_PAGESIZE)
164#endif
40 165
41 int fd; 166/*****************************************************************************/
42 off_t offset;
43 size_t length;
44 ssize_t result;
45 mode_t mode; /* open */
46 int errorno;
47 SV *data, *callback;
48 void *dataptr;
49 STRLEN dataoffset;
50
51 Stat_t *statdata;
52} aio_cb;
53
54typedef aio_cb *aio_req;
55
56static int started;
57static int nreqs;
58static int max_outstanding = 1<<30;
59static int respipe [2];
60
61static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
62static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
63static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
64
65static volatile aio_req reqs, reqe; /* queue start, queue end */
66static volatile aio_req ress, rese; /* queue start, queue end */
67 167
68static void 168static void
69poll_wait () 169fiemap (eio_req *req)
70{ 170{
71 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)
72 return; 189 return;
73 190
74 fd_set rfd; 191 req->ptr1 = fiemap;
75 FD_ZERO(&rfd);
76 FD_SET(respipe [0], &rfd);
77 192
78 select (respipe [0] + 1, &rfd, 0, 0, 0); 193 fiemap->fm_start = req->offs;
79} 194 fiemap->fm_length = req->size;
195 fiemap->fm_flags = req->int2;
196 fiemap->fm_extent_count = count;
80 197
81static int 198 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
82poll_cb (pTHX) 199 return;
83{ 200
84 dSP; 201 if (req->int3 >= 0 /* not autosizing */
85 int count = 0; 202 || !fiemap->fm_mapped_extents /* no more extents */
86 aio_req req; 203 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
87 204 goto done;
88 { 205
89 /* read and signals sent by the worker threads */ 206 /* else we have to loop -
90 char buf [32]; 207 * it would be tempting (actually I tried that first) to just query the
91 while (read (respipe [0], buf, 32) > 0) 208 * number of extents needed, but linux often feels like not returning all
92 ; 209 * extents, without telling us it left any out. this complicates
93 } 210 * this quite a bit.
211 */
212
213 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
94 214
95 for (;;) 215 for (;;)
96 { 216 {
97 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;
98 220
99 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);
100 226
101 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)
102 { 242 {
103 ress = ress->next; 243 struct fiemap_extent *e = incmap->fm_extents + count;
104 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
105 } 253 }
254 }
106 255
107 pthread_mutex_unlock (&reslock); 256done:
257 req->result = 0;
108 258
109 if (!req) 259#else
110 break; 260 errno = ENOSYS;
261#endif
262}
111 263
112 nreqs--; 264/*****************************************************************************/
113 265
114 if (req->type == REQ_QUIT) 266enum {
115 started--; 267 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
116 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 ((intptr_t)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))
117 { 400 {
118 int errorno = errno; 401 sv_result = sv_result_cache; sv_result_cache = 0;
119 errno = req->errorno; 402 SvIV_set (sv_result, req->result);
120 403 SvIOK_only (sv_result);
121 if (req->type == REQ_READ)
122 SvCUR_set (req->data, req->dataoffset
123 + req->result > 0 ? req->result : 0);
124
125 if (req->data)
126 SvREFCNT_dec (req->data);
127
128 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
129 {
130 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
131 PL_laststatval = req->result;
132 PL_statcache = *(req->statdata);
133
134 Safefree (req->statdata);
135 }
136
137 PUSHMARK (SP);
138 XPUSHs (sv_2mortal (newSViv (req->result)));
139
140 if (req->type == REQ_OPEN)
141 {
142 /* convert fd to fh */
143 SV *fh;
144
145 PUTBACK;
146 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
147 SPAGAIN;
148
149 fh = POPs;
150
151 PUSHMARK (SP);
152 XPUSHs (fh);
153 }
154
155 PUTBACK;
156 call_sv (req->callback, G_VOID | G_EVAL);
157 SPAGAIN;
158
159 if (req->callback)
160 SvREFCNT_dec (req->callback);
161
162 errno = errorno;
163 count++;
164 }
165
166 Safefree (req);
167 }
168
169 return count;
170}
171
172static void *aio_proc(void *arg);
173
174static void
175start_thread (void)
176{
177 sigset_t fullsigset, oldsigset;
178 pthread_t tid;
179 pthread_attr_t attr;
180
181 pthread_attr_init (&attr);
182 pthread_attr_setstacksize (&attr, STACKSIZE);
183 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
184
185 sigfillset (&fullsigset);
186 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
187
188 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
189 started++;
190
191 sigprocmask (SIG_SETMASK, &oldsigset, 0);
192}
193
194static void
195send_req (aio_req req)
196{
197 nreqs++;
198
199 pthread_mutex_lock (&reqlock);
200
201 req->next = 0;
202
203 if (reqe)
204 {
205 reqe->next = req;
206 reqe = req;
207 }
208 else
209 reqe = reqs = req;
210
211 pthread_cond_signal (&reqwait);
212 pthread_mutex_unlock (&reqlock);
213
214 while (nreqs > max_outstanding)
215 {
216 poll_wait ();
217 poll_cb ();
218 }
219}
220
221static void
222end_thread (void)
223{
224 aio_req req;
225 New (0, req, 1, aio_cb);
226 req->type = REQ_QUIT;
227
228 send_req (req);
229}
230
231static void
232read_write (pTHX_
233 int dowrite, int fd, off_t offset, size_t length,
234 SV *data, STRLEN dataoffset, SV *callback)
235{
236 aio_req req;
237 STRLEN svlen;
238 char *svptr = SvPV (data, svlen);
239
240 SvUPGRADE (data, SVt_PV);
241 SvPOK_on (data);
242
243 if (dataoffset < 0)
244 dataoffset += svlen;
245
246 if (dataoffset < 0 || dataoffset > svlen)
247 croak ("data offset outside of string");
248
249 if (dowrite)
250 {
251 /* write: check length and adjust. */
252 if (length < 0 || length + dataoffset > svlen)
253 length = svlen - dataoffset;
254 }
255 else
256 {
257 /* read: grow scalar as necessary */
258 svptr = SvGROW (data, length + dataoffset);
259 }
260
261 if (length < 0)
262 croak ("length must not be negative");
263
264 Newz (0, req, 1, aio_cb);
265
266 if (!req)
267 croak ("out of memory during aio_req allocation");
268
269 req->type = dowrite ? REQ_WRITE : REQ_READ;
270 req->fd = fd;
271 req->offset = offset;
272 req->length = length;
273 req->data = SvREFCNT_inc (data);
274 req->dataptr = (char *)svptr + dataoffset;
275 req->callback = SvREFCNT_inc (callback);
276
277 send_req (req);
278}
279
280static void *
281aio_proc (void *thr_arg)
282{
283 aio_req req;
284 int type;
285
286 do
287 {
288 pthread_mutex_lock (&reqlock);
289
290 for (;;)
291 {
292 req = reqs;
293
294 if (reqs)
295 {
296 reqs = reqs->next;
297 if (!reqs) reqe = 0;
298 }
299
300 if (req)
301 break;
302
303 pthread_cond_wait (&reqwait, &reqlock);
304 }
305
306 pthread_mutex_unlock (&reqlock);
307
308 errno = 0; /* strictly unnecessary */
309
310 type = req->type;
311
312 switch (type)
313 {
314 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break;
315 case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break;
316#if SYS_readahead
317 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
318#else
319 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
320#endif
321
322 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
323 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
324 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
325
326 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
327 case REQ_CLOSE: req->result = close (req->fd); break;
328 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
329
330 case REQ_FSYNC: req->result = fsync (req->fd); break;
331 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
332
333 case REQ_QUIT:
334 break;
335
336 default:
337 req->result = ENOSYS;
338 break;
339 }
340
341 req->errorno = errno;
342
343 pthread_mutex_lock (&reslock);
344
345 req->next = 0;
346
347 if (rese)
348 {
349 rese->next = req;
350 rese = req;
351 } 404 }
352 else 405 else
353 { 406 {
354 rese = ress = req; 407 sv_result = newSViv (req->result);
355 408 SvREADONLY_on (sv_result);
356 /* write a dummy byte to the pipe so fh becomes ready */
357 write (respipe [1], &respipe, 1);
358 } 409 }
359 410
360 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;
361 } 661 }
362 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);
363 784
364 return 0; 785 return 0;
365} 786}
366 787
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
367MODULE = IO::AIO PACKAGE = IO::AIO 898MODULE = IO::AIO PACKAGE = IO::AIO
368 899
900PROTOTYPES: ENABLE
901
369BOOT: 902BOOT:
370{ 903{
371 if (pipe (respipe)) 904 static const struct {
372 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 },
373 911
374 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 912 /* you have to re-run ./gendef0 after adding/Removing any constants here */
375 croak ("cannot set result pipe to nonblocking mode");
376 913
377 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 914 const_iv (ENOSYS)
378 croak ("cannot set result pipe to nonblocking mode"); 915 const_iv (EXDEV)
379} 916 const_iv (EBADR)
380 917
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 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1039 const_eio (FALLOC_FL_ZERO_RANGE)
1040
1041 const_eio (READDIR_DENTS)
1042 const_eio (READDIR_DIRS_FIRST)
1043 const_eio (READDIR_STAT_ORDER)
1044 const_eio (READDIR_FOUND_UNKNOWN)
1045
1046 const_eio (DT_UNKNOWN)
1047 const_eio (DT_FIFO)
1048 const_eio (DT_CHR)
1049 const_eio (DT_DIR)
1050 const_eio (DT_BLK)
1051 const_eio (DT_REG)
1052 const_eio (DT_LNK)
1053 const_eio (DT_SOCK)
1054 const_eio (DT_WHT)
1055 };
1056
1057 aio_stash = gv_stashpv ("IO::AIO" , 1);
1058 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1059 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1060 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1061
1062 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1063 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1064
1065 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1066
1067 reinit ();
1068}
1069
381void 1070void
382min_parallel(nthreads) 1071reinit ()
383 int nthreads 1072 PROTOTYPE:
1073
1074void
1075max_poll_reqs (unsigned int nreqs)
384 PROTOTYPE: $ 1076 PROTOTYPE: $
385 CODE: 1077 CODE:
386 while (nthreads > started) 1078 eio_set_max_poll_reqs (nreqs);
387 start_thread ();
388 1079
389void 1080void
390max_parallel(nthreads) 1081max_poll_time (double nseconds)
391 int nthreads
392 PROTOTYPE: $ 1082 PROTOTYPE: $
393 CODE: 1083 CODE:
1084 eio_set_max_poll_time (nseconds);
1085
1086void
1087min_parallel (unsigned int nthreads)
1088 PROTOTYPE: $
1089 CODE:
1090 eio_set_min_parallel (nthreads);
1091
1092void
1093max_parallel (unsigned int nthreads)
1094 PROTOTYPE: $
1095 CODE:
1096 eio_set_max_parallel (nthreads);
1097
1098void
1099max_idle (unsigned int nthreads)
1100 PROTOTYPE: $
1101 CODE:
1102 eio_set_max_idle (nthreads);
1103
1104void
1105idle_timeout (unsigned int seconds)
1106 PROTOTYPE: $
1107 CODE:
1108 eio_set_idle_timeout (seconds);
1109
1110void
1111max_outstanding (unsigned int maxreqs)
1112 PROTOTYPE: $
1113 CODE:
1114 max_outstanding = maxreqs;
1115
1116void
1117aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1118 PPCODE:
394{ 1119{
395 int cur = started; 1120 dREQ;
396 while (cur > nthreads) 1121
397 { 1122 req->type = EIO_WD_OPEN;
398 end_thread (); 1123 req_set_path1 (req, pathname);
1124
1125 REQ_SEND;
1126}
1127
1128void
1129aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1130 PPCODE:
1131{
1132 dREQ;
1133
1134 req->type = EIO_OPEN;
1135 req_set_path1 (req, pathname);
1136 req->int1 = flags;
1137 req->int2 = mode;
1138
1139 REQ_SEND;
1140}
1141
1142void
1143aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1144 ALIAS:
1145 aio_fsync = EIO_FSYNC
1146 aio_fdatasync = EIO_FDATASYNC
1147 aio_syncfs = EIO_SYNCFS
1148 PPCODE:
1149{
1150 int fd = s_fileno_croak (fh, 0);
1151 dREQ;
1152
1153 req->type = ix;
1154 req->sv1 = newSVsv (fh);
1155 req->int1 = fd;
1156
1157 REQ_SEND;
1158}
1159
1160void
1161aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1162 PPCODE:
1163{
1164 int fd = s_fileno_croak (fh, 0);
1165 dREQ;
1166
1167 req->type = EIO_SYNC_FILE_RANGE;
1168 req->sv1 = newSVsv (fh);
1169 req->int1 = fd;
1170 req->offs = offset;
1171 req->size = nbytes;
1172 req->int2 = flags;
1173
1174 REQ_SEND;
1175}
1176
1177void
1178aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1179 PPCODE:
1180{
1181 int fd = s_fileno_croak (fh, 0);
1182 dREQ;
1183
1184 req->type = EIO_FALLOCATE;
1185 req->sv1 = newSVsv (fh);
1186 req->int1 = fd;
1187 req->int2 = mode;
1188 req->offs = offset;
1189 req->size = len;
1190
1191 REQ_SEND;
1192}
1193
1194void
1195aio_close (SV *fh, SV *callback = &PL_sv_undef)
1196 PPCODE:
1197{
1198 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1199 int fd = s_fileno_croak (fh, 0);
1200 dREQ;
1201
1202 if (expect_false (close_fd < 0))
1203 {
1204 int pipefd [2];
1205
1206 if (
1207#ifdef _WIN32
1208 _pipe (pipefd, 1, _O_BINARY) < 0
1209#else
1210 pipe (pipefd) < 0
1211 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1212#endif
1213 || close (pipefd [1]) < 0
399 cur--; 1214 )
1215 abort (); /*D*/
1216
1217 close_fd = pipefd [0];
400 } 1218 }
401 1219
402 while (started > nthreads) 1220 req->type = EIO_DUP2;
1221 req->int1 = close_fd;
1222 req->sv2 = newSVsv (fh);
1223 req->int2 = fd;
1224
1225 REQ_SEND;
1226}
1227
1228void
1229aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1230 PPCODE:
1231{
1232 int fd = s_fileno_croak (fh, 0);
1233 dREQ;
1234
1235 req->type = EIO_SEEK;
1236 req->sv1 = newSVsv (fh);
1237 req->int1 = fd;
1238 req->offs = SvVAL64 (offset);
1239 req->int2 = whence;
1240
1241 REQ_SEND;
1242}
1243
1244void
1245aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1246 ALIAS:
1247 aio_read = EIO_READ
1248 aio_write = EIO_WRITE
1249 PPCODE:
1250{
1251 STRLEN svlen;
1252 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1253 char *svptr = SvPVbyte (data, svlen);
1254 UV len = SvUV (length);
1255
1256 if (dataoffset < 0)
1257 dataoffset += svlen;
1258
1259 if (dataoffset < 0 || dataoffset > svlen)
1260 croak ("dataoffset outside of data scalar");
1261
1262 if (ix == EIO_WRITE)
403 { 1263 {
404 poll_wait (); 1264 /* write: check length and adjust. */
405 poll_cb (aTHX); 1265 if (!SvOK (length) || len + dataoffset > svlen)
406 } 1266 len = svlen - dataoffset;
407}
408
409int
410max_outstanding(nreqs)
411 int nreqs
412 PROTOTYPE: $
413 CODE:
414 RETVAL = max_outstanding;
415 max_outstanding = nreqs;
416
417void
418aio_open(pathname,flags,mode,callback)
419 SV * pathname
420 int flags
421 int mode
422 SV * callback
423 PROTOTYPE: $$$$
424 CODE:
425{
426 aio_req req;
427
428 Newz (0, req, 1, aio_cb);
429
430 if (!req)
431 croak ("out of memory during aio_req allocation");
432
433 req->type = REQ_OPEN;
434 req->data = newSVsv (pathname);
435 req->dataptr = SvPV_nolen (req->data);
436 req->fd = flags;
437 req->mode = mode;
438 req->callback = SvREFCNT_inc (callback);
439
440 send_req (req);
441}
442
443void
444aio_close(fh,callback)
445 InputStream fh
446 SV * callback
447 PROTOTYPE: $$
448 ALIAS:
449 aio_close = REQ_CLOSE
450 aio_fsync = REQ_FSYNC
451 aio_fdatasync = REQ_FDATASYNC
452 CODE:
453{
454 aio_req req;
455
456 Newz (0, req, 1, aio_cb);
457
458 if (!req)
459 croak ("out of memory during aio_req allocation");
460
461 req->type = ix;
462 req->fd = PerlIO_fileno (fh);
463 req->callback = SvREFCNT_inc (callback);
464
465 send_req (req);
466}
467
468void
469aio_read(fh,offset,length,data,dataoffset,callback)
470 InputStream fh
471 UV offset
472 IV length
473 SV * data
474 IV dataoffset
475 SV * callback
476 PROTOTYPE: $$$$$$
477 CODE:
478 read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
479
480void
481aio_write(fh,offset,length,data,dataoffset,callback)
482 OutputStream fh
483 UV offset
484 IV length
485 SV * data
486 IV dataoffset
487 SV * callback
488 PROTOTYPE: $$$$$$
489 CODE:
490 read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
491
492void
493aio_readahead(fh,offset,length,callback)
494 InputStream fh
495 UV offset
496 IV length
497 SV * callback
498 PROTOTYPE: $$$$
499 CODE:
500{
501 aio_req req;
502
503 if (length < 0)
504 croak ("length must not be negative");
505
506 Newz (0, req, 1, aio_cb);
507
508 if (!req)
509 croak ("out of memory during aio_req allocation");
510
511 req->type = REQ_READAHEAD;
512 req->fd = PerlIO_fileno (fh);
513 req->offset = offset;
514 req->length = length;
515 req->callback = SvREFCNT_inc (callback);
516
517 send_req (req);
518}
519
520void
521aio_stat(fh_or_path,callback)
522 SV * fh_or_path
523 SV * callback
524 PROTOTYPE: $$
525 ALIAS:
526 aio_lstat = 1
527 CODE:
528{
529 aio_req req;
530
531 Newz (0, req, 1, aio_cb);
532
533 if (!req)
534 croak ("out of memory during aio_req allocation");
535
536 New (0, req->statdata, 1, Stat_t);
537
538 if (!req->statdata)
539 croak ("out of memory during aio_req->statdata allocation");
540
541 if (SvPOK (fh_or_path))
542 {
543 req->type = ix ? REQ_LSTAT : REQ_STAT;
544 req->data = newSVsv (fh_or_path);
545 req->dataptr = SvPV_nolen (req->data);
546 } 1267 }
547 else 1268 else
548 { 1269 {
549 req->type = REQ_FSTAT; 1270 /* read: check type and grow scalar as necessary */
550 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1271 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1272 svptr = sv_grow (data, len + dataoffset + 1);
1273 else if (SvCUR (data) < len + dataoffset)
1274 croak ("length + dataoffset outside of scalar, and cannot grow");
551 } 1275 }
552 1276
1277 {
1278 dREQ;
1279
1280 req->type = ix;
1281 req->sv1 = newSVsv (fh);
1282 req->int1 = fd;
1283 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1284 req->size = len;
553 req->callback = SvREFCNT_inc (callback); 1285 req->sv2 = SvREFCNT_inc (data);
1286 req->ptr2 = (char *)svptr + dataoffset;
1287 req->stroffset = dataoffset;
554 1288
555 send_req (req); 1289 if (!SvREADONLY (data))
556} 1290 {
1291 SvREADONLY_on (data);
1292 req->flags |= FLAG_SV2_RO_OFF;
1293 }
557 1294
1295 REQ_SEND;
1296 }
1297}
1298
558void 1299void
559aio_unlink(pathname,callback) 1300aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
560 SV * pathname 1301 ALIAS:
561 SV * callback 1302 aio_readlink = EIO_READLINK
562 PROTOTYPE: $$ 1303 aio_realpath = EIO_REALPATH
1304 PPCODE:
1305{
1306 dREQ;
1307
1308 req->type = ix;
1309 req_set_path1 (req, pathname);
1310
1311 REQ_SEND;
1312}
1313
1314void
1315aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1316 PPCODE:
1317{
1318 int ifd = s_fileno_croak (in_fh , 0);
1319 int ofd = s_fileno_croak (out_fh, 1);
1320 dREQ;
1321
1322 req->type = EIO_SENDFILE;
1323 req->sv1 = newSVsv (out_fh);
1324 req->int1 = ofd;
1325 req->sv2 = newSVsv (in_fh);
1326 req->int2 = ifd;
1327 req->offs = in_offset;
1328 req->size = length;
1329
1330 REQ_SEND;
1331}
1332
1333void
1334aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1335 PPCODE:
1336{
1337 int fd = s_fileno_croak (fh, 0);
1338 dREQ;
1339
1340 req->type = EIO_READAHEAD;
1341 req->sv1 = newSVsv (fh);
1342 req->int1 = fd;
1343 req->offs = offset;
1344 req->size = length;
1345
1346 REQ_SEND;
1347}
1348
1349void
1350aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1351 ALIAS:
1352 aio_stat = EIO_STAT
1353 aio_lstat = EIO_LSTAT
1354 aio_statvfs = EIO_STATVFS
1355 PPCODE:
1356{
1357 dREQ;
1358
1359 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1360
1361 REQ_SEND;
1362}
1363
1364UV
1365major (UV dev)
1366 ALIAS:
1367 minor = 1
563 CODE: 1368 CODE:
1369 RETVAL = ix ? major (dev) : minor (dev);
1370 OUTPUT:
1371 RETVAL
1372
1373UV
1374makedev (UV maj, UV min)
1375 CODE:
1376 RETVAL = makedev (maj, min);
1377 OUTPUT:
1378 RETVAL
1379
1380void
1381aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1382 PPCODE:
564{ 1383{
565 aio_req req; 1384 dREQ;
1385
1386 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1387 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1388 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1389
1390 REQ_SEND;
1391}
1392
1393void
1394aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1395 PPCODE:
1396{
1397 dREQ;
1398
1399 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1400 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1401
1402 REQ_SEND;
1403}
1404
1405void
1406aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1407 PPCODE:
1408{
1409 dREQ;
1410
1411 req->int2 = mode;
1412 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1413
1414 REQ_SEND;
1415}
1416
1417void
1418aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1419 PPCODE:
1420{
1421 dREQ;
1422
1423 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1424 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1425 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1426
1427 REQ_SEND;
1428}
1429
1430void
1431aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1432 PPCODE:
1433{
1434 dREQ;
566 1435
567 Newz (0, req, 1, aio_cb); 1436 req->type = EIO_READDIR;
1437 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1438
1439 if (flags & EIO_READDIR_DENTS)
1440 req->int1 |= EIO_READDIR_CUSTOM2;
1441
1442 req_set_path1 (req, pathname);
1443
1444 REQ_SEND;
1445}
1446
1447void
1448aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1449 PPCODE:
1450{
1451 dREQ;
1452
1453 req->type = EIO_MKDIR;
1454 req->int2 = mode;
1455 req_set_path1 (req, pathname);
1456
1457 REQ_SEND;
1458}
1459
1460void
1461aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1462 ALIAS:
1463 aio_unlink = EIO_UNLINK
1464 aio_rmdir = EIO_RMDIR
1465 aio_readdir = EIO_READDIR
1466 PPCODE:
1467{
1468 dREQ;
568 1469
569 if (!req) 1470 req->type = ix;
570 croak ("out of memory during aio_req allocation"); 1471 req_set_path1 (req, pathname);
1472
1473 REQ_SEND;
1474}
1475
1476void
1477aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1478 ALIAS:
1479 aio_link = EIO_LINK
1480 aio_symlink = EIO_SYMLINK
1481 aio_rename = EIO_RENAME
1482 PPCODE:
1483{
1484 eio_wd wd2 = 0;
1485 dREQ;
571 1486
572 req->type = REQ_UNLINK; 1487 req->type = ix;
573 req->data = newSVsv (pathname); 1488 req_set_path1 (req, oldpath);
574 req->dataptr = SvPV_nolen (req->data); 1489 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
575 req->callback = SvREFCNT_inc (callback); 1490 req->int3 = (long)wd2;
576 1491
577 send_req (req); 1492 REQ_SEND;
1493}
1494
1495void
1496aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1497 PPCODE:
1498{
1499 dREQ;
1500
1501 req->type = EIO_MKNOD;
1502 req->int2 = (mode_t)mode;
1503 req->offs = dev;
1504 req_set_path1 (req, pathname);
1505
1506 REQ_SEND;
1507}
1508
1509void
1510aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
1511 ALIAS:
1512 aio_mtouch = EIO_MTOUCH
1513 aio_msync = EIO_MSYNC
1514 PPCODE:
1515{
1516 STRLEN svlen;
1517 char *svptr = SvPVbyte (data, svlen);
1518 UV len = SvUV (length);
1519
1520 if (offset < 0)
1521 offset += svlen;
1522
1523 if (offset < 0 || offset > svlen)
1524 croak ("offset outside of scalar");
1525
1526 if (!SvOK (length) || len + offset > svlen)
1527 len = svlen - offset;
1528
1529 {
1530 dREQ;
1531
1532 req->type = ix;
1533 req->sv2 = SvREFCNT_inc (data);
1534 req->ptr2 = (char *)svptr + offset;
1535 req->size = len;
1536 req->int1 = flags;
1537
1538 REQ_SEND;
1539 }
1540}
1541
1542void
1543aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1544 PPCODE:
1545{
1546 STRLEN svlen;
1547 char *svptr = SvPVbyte (data, svlen);
1548 UV len = SvUV (length);
1549
1550 if (offset < 0)
1551 offset += svlen;
1552
1553 if (offset < 0 || offset > svlen)
1554 croak ("offset outside of scalar");
1555
1556 if (!SvOK (length) || len + offset > svlen)
1557 len = svlen - offset;
1558
1559 {
1560 dREQ;
1561
1562 req->type = EIO_MLOCK;
1563 req->sv2 = SvREFCNT_inc (data);
1564 req->ptr2 = (char *)svptr + offset;
1565 req->size = len;
1566
1567 REQ_SEND;
1568 }
1569}
1570
1571void
1572aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1573 PPCODE:
1574{
1575 dREQ;
1576
1577 req->type = EIO_MLOCKALL;
1578 req->int1 = flags;
1579
1580 REQ_SEND;
1581}
1582
1583void
1584aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1585 PPCODE:
1586{
1587 int fd = s_fileno_croak (fh, 0);
1588 dREQ;
1589
1590 req->type = EIO_CUSTOM;
1591 req->sv1 = newSVsv (fh);
1592 req->int1 = fd;
1593
1594 req->feed = fiemap;
1595#if HAVE_FIEMAP
1596 /* keep our fingers crossed that the next two types are 64 bit */
1597 req->offs = start;
1598 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1599 req->int2 = flags;
1600 req->int3 = SvOK (count) ? SvIV (count) : -1;
1601#endif
1602
1603 REQ_SEND;
1604}
1605
1606void
1607aio_busy (double delay, SV *callback = &PL_sv_undef)
1608 PPCODE:
1609{
1610 dREQ;
1611
1612 req->type = EIO_BUSY;
1613 req->nv1 = delay < 0. ? 0. : delay;
1614
1615 REQ_SEND;
1616}
1617
1618void
1619aio_group (SV *callback = &PL_sv_undef)
1620 PPCODE:
1621{
1622 dREQ;
1623
1624 req->type = EIO_GROUP;
1625
1626 PUTBACK;
1627 req_submit (req);
1628 SPAGAIN;
1629
1630 XPUSHs (req_sv (req, aio_grp_stash));
1631}
1632
1633void
1634aio_nop (SV *callback = &PL_sv_undef)
1635 ALIAS:
1636 aio_nop = EIO_NOP
1637 aio_sync = EIO_SYNC
1638 PPCODE:
1639{
1640 dREQ;
1641
1642 req->type = ix;
1643
1644 REQ_SEND;
578} 1645}
579 1646
580int 1647int
1648aioreq_pri (int pri = NO_INIT)
1649 CODE:
1650 RETVAL = next_pri;
1651 if (items > 0)
1652 {
1653 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1654 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1655 next_pri = pri;
1656 }
1657 OUTPUT:
1658 RETVAL
1659
1660void
1661aioreq_nice (int nice = 0)
1662 CODE:
1663 nice = next_pri - nice;
1664 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1665 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1666 next_pri = nice;
1667
1668void
1669flush ()
1670 CODE:
1671 while (eio_nreqs ())
1672 {
1673 poll_wait ();
1674 poll_cb ();
1675 }
1676
1677int
1678poll ()
1679 CODE:
1680 poll_wait ();
1681 RETVAL = poll_cb ();
1682 OUTPUT:
1683 RETVAL
1684
1685int
581poll_fileno() 1686poll_fileno ()
1687 CODE:
1688 RETVAL = s_epipe_fd (&respipe);
1689 OUTPUT:
1690 RETVAL
1691
1692int
1693poll_cb (...)
582 PROTOTYPE: 1694 PROTOTYPE:
583 CODE: 1695 CODE:
584 RETVAL = respipe [0]; 1696 RETVAL = poll_cb ();
585 OUTPUT: 1697 OUTPUT:
586 RETVAL 1698 RETVAL
587 1699
1700void
1701poll_wait ()
1702 CODE:
1703 poll_wait ();
1704
588int 1705int
589poll_cb(...) 1706nreqs ()
590 PROTOTYPE:
591 CODE: 1707 CODE:
592 RETVAL = poll_cb (aTHX); 1708 RETVAL = eio_nreqs ();
593 OUTPUT: 1709 OUTPUT:
594 RETVAL 1710 RETVAL
595 1711
596void 1712int
597poll_wait() 1713nready ()
598 PROTOTYPE:
599 CODE: 1714 CODE:
600 if (nreqs)
601 poll_wait ();
602
603int
604nreqs()
605 PROTOTYPE:
606 CODE:
607 RETVAL = nreqs; 1715 RETVAL = eio_nready ();
608 OUTPUT: 1716 OUTPUT:
609 RETVAL 1717 RETVAL
610 1718
1719int
1720npending ()
1721 CODE:
1722 RETVAL = eio_npending ();
1723 OUTPUT:
1724 RETVAL
1725
1726int
1727nthreads ()
1728 CODE:
1729 RETVAL = eio_nthreads ();
1730 OUTPUT:
1731 RETVAL
1732
1733int
1734fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1735 CODE:
1736 RETVAL = posix_fadvise (fh, offset, length, advice);
1737 OUTPUT:
1738 RETVAL
1739
1740IV
1741sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1742 CODE:
1743 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1744 OUTPUT:
1745 RETVAL
1746
1747void
1748mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1749 PPCODE:
1750 sv_unmagic (scalar, MMAP_MAGIC);
1751{
1752 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1753 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1754 if (addr == (void *)-1)
1755 XSRETURN_NO;
1756
1757 sv_force_normal (scalar);
1758
1759 /* we store the length in mg_obj, as namlen is I32 :/ */
1760 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1761 ->mg_obj = (SV *)length;
1762
1763 SvUPGRADE (scalar, SVt_PV); /* nop... */
1764
1765 if (!(prot & PROT_WRITE))
1766 SvREADONLY_on (scalar);
1767
1768 if (SvLEN (scalar))
1769 Safefree (SvPVX (scalar));
1770
1771 SvPVX (scalar) = (char *)addr;
1772 SvCUR_set (scalar, length);
1773 SvLEN_set (scalar, 0);
1774 SvPOK_only (scalar);
1775
1776 XSRETURN_YES;
1777}
1778
1779void
1780munmap (SV *scalar)
1781 CODE:
1782 sv_unmagic (scalar, MMAP_MAGIC);
1783
1784int
1785madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1786 ALIAS:
1787 mprotect = 1
1788 CODE:
1789{
1790 STRLEN svlen;
1791 void *addr = SvPVbyte (scalar, svlen);
1792 STRLEN len = SvUV (length);
1793
1794 if (offset < 0)
1795 offset += svlen;
1796
1797 if (offset < 0 || offset > svlen)
1798 croak ("offset outside of scalar");
1799
1800 if (!SvOK (length) || len + offset > svlen)
1801 len = svlen - offset;
1802
1803 addr = (void *)(((intptr_t)addr) + offset);
1804 eio_page_align (&addr, &len);
1805
1806 switch (ix)
1807 {
1808 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1809 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1810 }
1811}
1812 OUTPUT:
1813 RETVAL
1814
1815int
1816munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1817 CODE:
1818{
1819 STRLEN svlen;
1820 void *addr = SvPVbyte (scalar, svlen);
1821 size_t len = SvUV (length);
1822
1823 if (offset < 0)
1824 offset += svlen;
1825
1826 if (offset < 0 || offset > svlen)
1827 croak ("offset outside of scalar");
1828
1829 if (!SvOK (length) || len + offset > svlen)
1830 len = svlen - offset;
1831
1832 addr = (void *)(((intptr_t)addr) + offset);
1833 eio_page_align (&addr, &len);
1834#if _POSIX_MEMLOCK_RANGE
1835 RETVAL = munlock (addr, len);
1836#else
1837 RETVAL = EIO_ENOSYS ();
1838#endif
1839}
1840 OUTPUT:
1841 RETVAL
1842
1843int
1844munlockall ()
1845 CODE:
1846#if _POSIX_MEMLOCK
1847 munlockall ();
1848#else
1849 RETVAL = EIO_ENOSYS ();
1850#endif
1851 OUTPUT:
1852 RETVAL
1853
1854int
1855splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1856 CODE:
1857{
1858#if HAVE_LINUX_SPLICE
1859 loff_t off_in_, off_out_;
1860 RETVAL = splice (
1861 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1862 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1863 length, flags
1864 );
1865#else
1866 RETVAL = EIO_ENOSYS ();
1867#endif
1868}
1869 OUTPUT:
1870 RETVAL
1871
1872int
1873tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1874 CODE:
1875#if HAVE_LINUX_SPLICE
1876 RETVAL = tee (rfh, wfh, length, flags);
1877#else
1878 RETVAL = EIO_ENOSYS ();
1879#endif
1880 OUTPUT:
1881 RETVAL
1882
1883int
1884pipesize (aio_rfd rfh, int new_size = -1)
1885 PROTOTYPE: $;$
1886 CODE:
1887#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1888 if (new_size >= 0)
1889 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1890 else
1891 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1892#else
1893 errno = ENOSYS;
1894 RETVAL = -1;
1895#endif
1896 OUTPUT:
1897 RETVAL
1898
1899void _on_next_submit (SV *cb)
1900 CODE:
1901 SvREFCNT_dec (on_next_submit);
1902 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1903
1904PROTOTYPES: DISABLE
1905
1906MODULE = IO::AIO PACKAGE = IO::AIO::WD
1907
1908BOOT:
1909{
1910 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1911 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1912}
1913
1914void
1915DESTROY (SV *self)
1916 CODE:
1917{
1918 aio_wd wd = SvAIO_WD (self);
1919#if HAVE_AT
1920 {
1921 SV *callback = &PL_sv_undef;
1922 dREQ; /* clobbers next_pri :/ */
1923 next_pri = req->pri; /* restore next_pri */
1924 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1925 req->type = EIO_WD_CLOSE;
1926 req->wd = wd;
1927 REQ_SEND;
1928 }
1929#else
1930 eio_wd_close_sync (wd);
1931#endif
1932}
1933
1934MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1935
1936void
1937cancel (aio_req_ornot req)
1938 CODE:
1939 eio_cancel (req);
1940
1941void
1942cb (aio_req_ornot req, SV *callback = NO_INIT)
1943 PPCODE:
1944{
1945 if (GIMME_V != G_VOID)
1946 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1947
1948 if (items > 1)
1949 {
1950 SV *cb_cv = get_cb (callback);
1951
1952 SvREFCNT_dec (req->callback);
1953 req->callback = SvREFCNT_inc (cb_cv);
1954 }
1955}
1956
1957MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1958
1959void
1960add (aio_req grp, ...)
1961 PPCODE:
1962{
1963 int i;
1964
1965 if (grp->int1 == 2)
1966 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1967
1968 for (i = 1; i < items; ++i )
1969 {
1970 aio_req req;
1971
1972 if (GIMME_V != G_VOID)
1973 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1974
1975 req = SvAIO_REQ (ST (i));
1976
1977 if (req)
1978 eio_grp_add (grp, req);
1979 }
1980}
1981
1982void
1983cancel_subs (aio_req_ornot req)
1984 CODE:
1985 req_cancel_subs (req);
1986
1987void
1988result (aio_req grp, ...)
1989 CODE:
1990{
1991 int i;
1992 AV *av;
1993
1994 grp->errorno = errno;
1995
1996 av = newAV ();
1997 av_extend (av, items - 1);
1998
1999 for (i = 1; i < items; ++i )
2000 av_push (av, newSVsv (ST (i)));
2001
2002 SvREFCNT_dec (grp->sv1);
2003 grp->sv1 = (SV *)av;
2004}
2005
2006void
2007errno (aio_req grp, int errorno = errno)
2008 CODE:
2009 grp->errorno = errorno;
2010
2011void
2012limit (aio_req grp, int limit)
2013 CODE:
2014 eio_grp_limit (grp, limit);
2015
2016void
2017feed (aio_req grp, SV *callback = &PL_sv_undef)
2018 CODE:
2019{
2020 SvREFCNT_dec (grp->sv2);
2021 grp->sv2 = newSVsv (callback);
2022 grp->feed = aio_grp_feed;
2023
2024 if (grp->int2 <= 0)
2025 grp->int2 = 2;
2026
2027 eio_grp_limit (grp, grp->int2);
2028}
2029

Diff Legend

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