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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.27 by root, Wed Aug 17 04:47:02 2005 UTC vs.
Revision 1.238 by root, Thu Jan 21 23:04:46 2016 UTC

1#define _REENTRANT 1 1#include "libeio/xthread.h"
2
2#include <errno.h> 3#include <errno.h>
3 4
4#include "EXTERN.h" 5#include "EXTERN.h"
5#include "perl.h" 6#include "perl.h"
6#include "XSUB.h" 7#include "XSUB.h"
7 8
8#include "autoconf/config.h" 9#include "schmorp.h"
9 10
11#include <stddef.h>
12#include <stdlib.h>
13#include <errno.h>
10#include <sys/types.h> 14#include <sys/types.h>
11#include <sys/stat.h> 15#include <sys/stat.h>
12
13#include <unistd.h> 16#include <limits.h>
14#include <fcntl.h> 17#include <fcntl.h>
15#include <signal.h>
16#include <sched.h> 18#include <sched.h>
17 19
18#include <pthread.h> 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
19 23
20typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 24/* the incompetent fool that created musl keeps __linux__, refuses
21typedef 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
22typedef 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
23 36
24#if __ia64 37/* perl namespace pollution */
25# 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
26#else 83#else
27# define STACKSIZE 4096 84
85 #include <sys/time.h>
86 #include <sys/select.h>
87 #include <unistd.h>
88 #include <utime.h>
89 #include <signal.h>
90
91 #define EIO_STRUCT_STAT Stat_t
92
93#endif
94
95/*****************************************************************************/
96
97#if __GNUC__ >= 3
98# define expect(expr,value) __builtin_expect ((expr),(value))
99#else
100# define expect(expr,value) (expr)
101#endif
102
103#define expect_false(expr) expect ((expr) != 0, 0)
104#define expect_true(expr) expect ((expr) != 0, 1)
105
106/*****************************************************************************/
107
108typedef SV SV8; /* byte-sv, used for argument-checking */
109typedef int aio_rfd; /* read file desriptor */
110typedef int aio_wfd; /* write file descriptor */
111
112static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
113
114#define EIO_REQ_MEMBERS \
115 SV *callback; \
116 SV *sv1, *sv2; \
117 SV *sv3, *sv4; \
118 STRLEN stroffset; \
119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/config.h"
124#include "libeio/eio.h"
125
126static int req_invoke (eio_req *req);
127#define EIO_FINISH(req) req_invoke (req)
128static void req_destroy (eio_req *grp);
129#define EIO_DESTROY(req) req_destroy (req)
130
131#include "libeio/eio.c"
132
133#if !HAVE_POSIX_FADVISE
134# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#if !HAVE_POSIX_MADVISE
138# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
139#endif
140
141#ifndef MAP_ANONYMOUS
142# ifdef MAP_ANON
143# define MAP_ANONYMOUS MAP_ANON
144# else
145# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
28#endif 146# endif
147#endif
29 148
30enum { 149/* defines all sorts of constants to 0 unless they are already defined */
31 REQ_QUIT, 150/* also provides const_iv_ and const_niv_ macros for them */
32 REQ_OPEN, REQ_CLOSE, 151#include "def0.h"
33 REQ_READ, REQ_WRITE, REQ_READAHEAD,
34 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35 REQ_FSYNC, REQ_FDATASYNC,
36 REQ_UNLINK, REQ_RMDIR,
37 REQ_SYMLINK,
38};
39 152
40typedef struct aio_cb { 153#ifndef makedev
41 struct aio_cb *volatile next; 154# define makedev(maj,min) (((maj) << 8) | (min))
155#endif
156#ifndef major
157# define major(dev) ((dev) >> 8)
158#endif
159#ifndef minor
160# define minor(dev) ((dev) & 0xff)
161#endif
42 162
43 int type; 163#if PAGESIZE <= 0
164# define PAGESIZE sysconf (_SC_PAGESIZE)
165#endif
44 166
45 int fd; 167/*****************************************************************************/
46 off_t offset;
47 size_t length;
48 ssize_t result;
49 mode_t mode; /* open */
50 int errorno;
51 SV *data, *callback, *fh;
52 void *dataptr, *data2ptr;
53 STRLEN dataoffset;
54
55 Stat_t *statdata;
56} aio_cb;
57
58typedef aio_cb *aio_req;
59
60static int started;
61static volatile int nreqs;
62static int max_outstanding = 1<<30;
63static int respipe [2];
64
65static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
66static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
68
69static volatile aio_req reqs, reqe; /* queue start, queue end */
70static volatile aio_req ress, rese; /* queue start, queue end */
71
72static void free_req (aio_req req)
73{
74 if (req->data)
75 SvREFCNT_dec (req->data);
76
77 if (req->fh)
78 SvREFCNT_dec (req->fh);
79
80 if (req->statdata)
81 Safefree (req->statdata);
82
83 if (req->callback)
84 SvREFCNT_dec (req->callback);
85
86 Safefree (req);
87}
88 168
89static void 169static void
90poll_wait () 170fiemap (eio_req *req)
91{ 171{
92 if (nreqs && !ress) 172 req->result = -1;
93 {
94 fd_set rfd;
95 FD_ZERO(&rfd);
96 FD_SET(respipe [0], &rfd);
97 173
98 select (respipe [0] + 1, &rfd, 0, 0, 0); 174#if HAVE_FIEMAP
99 } 175 /* assume some c99 */
100} 176 struct fiemap *fiemap = 0;
177 size_t end_offset;
178 int count = req->int3;
101 179
102static int 180 req->flags |= EIO_FLAG_PTR1_FREE;
103poll_cb () 181
104{ 182 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
105 dSP; 183 /* increase in 3.5kb steps */
184 if (count < 0)
106 int count = 0; 185 count = 8;
107 int do_croak = 0; 186
108 aio_req req; 187 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
188 errno = ENOMEM;
189 if (!fiemap)
190 return;
191
192 req->ptr1 = fiemap;
193
194 fiemap->fm_start = req->offs;
195 fiemap->fm_length = req->size;
196 fiemap->fm_flags = req->int2;
197 fiemap->fm_extent_count = count;
198
199 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
200 return;
201
202 if (req->int3 >= 0 /* not autosizing */
203 || !fiemap->fm_mapped_extents /* no more extents */
204 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
205 goto done;
206
207 /* else we have to loop -
208 * it would be tempting (actually I tried that first) to just query the
209 * number of extents needed, but linux often feels like not returning all
210 * extents, without telling us it left any out. this complicates
211 * this quite a bit.
212 */
213
214 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
109 215
110 for (;;) 216 for (;;)
111 { 217 {
112 pthread_mutex_lock (&reslock); 218 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
113 req = ress; 219 char scratch[3072];
220 struct fiemap *incmap = (struct fiemap *)scratch;
114 221
222 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
223 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
224 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
225 incmap->fm_flags = fiemap->fm_flags;
226 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
227
228 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
229 return;
230
231 if (!incmap->fm_mapped_extents)
232 goto done;
233
234 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
235 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
236 errno = ENOMEM;
115 if (req) 237 if (!fiemap)
238 return;
239
240 req->ptr1 = fiemap;
241
242 for (count = 0; count < incmap->fm_mapped_extents; ++count)
116 { 243 {
117 ress = req->next; 244 struct fiemap_extent *e = incmap->fm_extents + count;
118 245
119 if (!ress) 246 if (e->fe_logical + e->fe_length >= end_offset)
120 { 247 goto done;
121 rese = 0;
122 248
123 /* read any signals sent by the worker threads */ 249 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
124 char buf [32]; 250
125 while (read (respipe [0], buf, 32) == 32) 251 if (e->fe_flags & FIEMAP_EXTENT_LAST)
126 ; 252 goto done;
127 } 253
128 } 254 }
255 }
129 256
130 pthread_mutex_unlock (&reslock); 257done:
258 req->result = 0;
131 259
132 if (!req) 260#else
133 break; 261 errno = ENOSYS;
262#endif
263}
134 264
135 nreqs--; 265/*****************************************************************************/
136 266
137 if (req->type == REQ_QUIT) 267enum {
138 started--; 268 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
139 else 269};
270
271typedef eio_req *aio_req;
272typedef eio_req *aio_req_ornot;
273typedef eio_wd aio_wd;
274
275static SV *on_next_submit;
276static int next_pri = EIO_PRI_DEFAULT;
277static int max_outstanding;
278
279static s_epipe respipe;
280
281static void req_destroy (aio_req req);
282static void req_cancel (aio_req req);
283
284static void
285want_poll (void)
286{
287 /* write a dummy byte to the pipe so fh becomes ready */
288 s_epipe_signal (&respipe);
289}
290
291static void
292done_poll (void)
293{
294 /* read any signals sent by the worker threads */
295 s_epipe_drain (&respipe);
296}
297
298/* must be called at most once */
299static SV *
300req_sv (aio_req req, HV *stash)
301{
302 if (!req->self)
303 {
304 req->self = (SV *)newHV ();
305 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
306 }
307
308 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
309}
310
311static SV *
312newSVaio_wd (aio_wd wd)
313{
314 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
315}
316
317static aio_req
318SvAIO_REQ (SV *sv)
319{
320 MAGIC *mg;
321
322 if (!SvROK (sv)
323 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
324 || (SvSTASH (SvRV (sv)) != aio_grp_stash
325 && SvSTASH (SvRV (sv)) != aio_req_stash
326 && !sv_derived_from (sv, "IO::AIO::REQ")))
327 croak ("object of class IO::AIO::REQ expected");
328
329 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
330
331 return mg ? (aio_req)mg->mg_ptr : 0;
332}
333
334static aio_wd
335SvAIO_WD (SV *sv)
336{
337 if (!SvROK (sv)
338 || SvTYPE (SvRV (sv)) != SVt_PVMG
339 || SvSTASH (SvRV (sv)) != aio_wd_stash)
340 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
341
342 return (aio_wd)(long)SvIVX (SvRV (sv));
343}
344
345static SV *
346newmortalFH (int fd, int flags)
347{
348 if (fd < 0)
349 return &PL_sv_undef;
350
351 GV *gv = (GV *)sv_newmortal ();
352 char sym[64];
353 int symlen;
354
355 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
356 gv_init (gv, aio_stash, sym, symlen, 0);
357
358 symlen = snprintf (
359 sym,
360 sizeof (sym),
361 "%s&=%d",
362 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
363 fd
364 );
365
366 return do_open (gv, sym, symlen, 0, 0, 0, 0)
367 ? (SV *)gv : &PL_sv_undef;
368}
369
370static void
371aio_grp_feed (aio_req grp)
372{
373 if (grp->sv2 && SvOK (grp->sv2))
374 {
375 dSP;
376
377 ENTER;
378 SAVETMPS;
379 PUSHMARK (SP);
380 XPUSHs (req_sv (grp, aio_grp_stash));
381 PUTBACK;
382 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
383 SPAGAIN;
384 FREETMPS;
385 LEAVE;
386 }
387}
388
389static void
390req_submit (eio_req *req)
391{
392 eio_submit (req);
393
394 if (expect_false (on_next_submit))
395 {
396 dSP;
397 SV *cb = sv_2mortal (on_next_submit);
398
399 on_next_submit = 0;
400
401 PUSHMARK (SP);
402 PUTBACK;
403 call_sv (cb, G_DISCARD | G_EVAL);
404 }
405}
406
407static int
408req_invoke (eio_req *req)
409{
410 if (req->flags & FLAG_SV2_RO_OFF)
411 SvREADONLY_off (req->sv2);
412
413 if (!EIO_CANCELLED (req) && req->callback)
414 {
415 dSP;
416 static SV *sv_result_cache; /* caches the result integer SV */
417 SV *sv_result;
418
419 ENTER;
420 SAVETMPS;
421 PUSHMARK (SP);
422 EXTEND (SP, 1);
423
424 /* do not recreate the result IV from scratch each time */
425 if (expect_true (sv_result_cache))
140 { 426 {
141 int errorno = errno; 427 sv_result = sv_result_cache; sv_result_cache = 0;
142 errno = req->errorno; 428 SvIV_set (sv_result, req->result);
143 429 SvIOK_only (sv_result);
144 if (req->type == REQ_READ)
145 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
146
147 if (req->statdata)
148 {
149 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
150 PL_laststatval = req->result;
151 PL_statcache = *(req->statdata);
152 }
153
154 ENTER;
155 PUSHMARK (SP);
156 XPUSHs (sv_2mortal (newSViv (req->result)));
157
158 if (req->type == REQ_OPEN)
159 {
160 /* convert fd to fh */
161 SV *fh;
162
163 PUTBACK;
164 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
165 SPAGAIN;
166
167 fh = SvREFCNT_inc (POPs);
168
169 PUSHMARK (SP);
170 XPUSHs (sv_2mortal (fh));
171 }
172
173 if (SvOK (req->callback))
174 {
175 PUTBACK;
176 call_sv (req->callback, G_VOID | G_EVAL);
177 SPAGAIN;
178
179 if (SvTRUE (ERRSV))
180 {
181 free_req (req);
182 croak (0);
183 }
184 }
185
186 LEAVE;
187
188 errno = errorno;
189 count++;
190 }
191
192 free_req (req);
193 }
194
195 return count;
196}
197
198static void *aio_proc(void *arg);
199
200static void
201start_thread (void)
202{
203 sigset_t fullsigset, oldsigset;
204 pthread_t tid;
205 pthread_attr_t attr;
206
207 pthread_attr_init (&attr);
208 pthread_attr_setstacksize (&attr, STACKSIZE);
209 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
210
211 sigfillset (&fullsigset);
212 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
213
214 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
215 started++;
216
217 sigprocmask (SIG_SETMASK, &oldsigset, 0);
218}
219
220static void
221send_req (aio_req req)
222{
223 nreqs++;
224
225 pthread_mutex_lock (&reqlock);
226
227 req->next = 0;
228
229 if (reqe)
230 {
231 reqe->next = req;
232 reqe = req;
233 }
234 else
235 reqe = reqs = req;
236
237 pthread_cond_signal (&reqwait);
238 pthread_mutex_unlock (&reqlock);
239
240 if (nreqs > max_outstanding)
241 for (;;)
242 {
243 poll_cb ();
244
245 if (nreqs <= max_outstanding)
246 break;
247
248 poll_wait ();
249 }
250}
251
252static void
253end_thread (void)
254{
255 aio_req req;
256 Newz (0, req, 1, aio_cb);
257 req->type = REQ_QUIT;
258
259 send_req (req);
260}
261
262static void min_parallel (int nthreads)
263{
264 while (nthreads > started)
265 start_thread ();
266}
267
268static void max_parallel (int nthreads)
269{
270 int cur = started;
271
272 while (cur > nthreads)
273 {
274 end_thread ();
275 cur--;
276 }
277
278 while (started > nthreads)
279 {
280 poll_wait ();
281 poll_cb ();
282 }
283}
284
285static void create_pipe ()
286{
287 if (pipe (respipe))
288 croak ("unable to initialize result pipe");
289
290 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
291 croak ("cannot set result pipe to nonblocking mode");
292
293 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
294 croak ("cannot set result pipe to nonblocking mode");
295}
296
297static void atfork_prepare (void)
298{
299 for (;;) {
300
301 for (;;)
302 {
303 poll_cb ();
304
305 if (!nreqs)
306 break;
307
308 poll_wait ();
309 }
310
311 pthread_mutex_lock (&reqlock);
312
313 if (!nreqs)
314 break;
315
316 pthread_mutex_unlock (&reqlock);
317 }
318
319 pthread_mutex_lock (&reslock);
320
321 assert (!nreqs && !reqs && !ress);
322}
323
324static void atfork_parent (void)
325{
326 pthread_mutex_unlock (&reslock);
327 pthread_mutex_unlock (&reqlock);
328}
329
330static void atfork_child (void)
331{
332 int restart = started;
333 started = 0;
334
335 atfork_parent ();
336
337 min_parallel (restart);
338}
339
340/*****************************************************************************/
341/* work around various missing functions */
342
343#if !HAVE_PREADWRITE
344# define pread aio_pread
345# define pwrite aio_pwrite
346
347/*
348 * make our pread/pwrite safe against themselves, but not against
349 * normal read/write by using a mutex. slows down execution a lot,
350 * but that's your problem, not mine.
351 */
352static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
353
354static ssize_t
355pread (int fd, void *buf, size_t count, off_t offset)
356{
357 ssize_t res;
358 off_t ooffset;
359
360 pthread_mutex_lock (&iolock);
361 ooffset = lseek (fd, 0, SEEK_CUR);
362 lseek (fd, offset, SEEK_SET);
363 res = read (fd, buf, count);
364 lseek (fd, ooffset, SEEK_SET);
365 pthread_mutex_unlock (&iolock);
366
367 return res;
368}
369
370static ssize_t
371pwrite (int fd, void *buf, size_t count, off_t offset)
372{
373 ssize_t res;
374 off_t ooffset;
375
376 pthread_mutex_lock (&iolock);
377 ooffset = lseek (fd, 0, SEEK_CUR);
378 lseek (fd, offset, SEEK_SET);
379 res = write (fd, buf, count);
380 lseek (fd, offset, SEEK_SET);
381 pthread_mutex_unlock (&iolock);
382
383 return res;
384}
385#endif
386
387#if !HAVE_FDATASYNC
388# define fdatasync fsync
389#endif
390
391#if !HAVE_READAHEAD
392# define readahead aio_readahead
393
394static char readahead_buf[4096];
395
396static ssize_t
397readahead (int fd, off_t offset, size_t count)
398{
399 while (count > 0)
400 {
401 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
402
403 pread (fd, readahead_buf, len, offset);
404 offset += len;
405 count -= len;
406 }
407
408 errno = 0;
409}
410#endif
411
412/*****************************************************************************/
413
414static void *
415aio_proc (void *thr_arg)
416{
417 aio_req req;
418 int type;
419
420 do
421 {
422 pthread_mutex_lock (&reqlock);
423
424 for (;;)
425 {
426 req = reqs;
427
428 if (reqs)
429 {
430 reqs = reqs->next;
431 if (!reqs) reqe = 0;
432 }
433
434 if (req)
435 break;
436
437 pthread_cond_wait (&reqwait, &reqlock);
438 }
439
440 pthread_mutex_unlock (&reqlock);
441
442 errno = 0; /* strictly unnecessary */
443
444 type = req->type;
445
446 switch (type)
447 {
448 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
449 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
450
451 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
452
453 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
454 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
455 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
456
457 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
458 case REQ_CLOSE: req->result = close (req->fd); break;
459 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
460 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
461 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
462
463 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
464 case REQ_FSYNC: req->result = fsync (req->fd); break;
465
466 case REQ_QUIT:
467 break;
468
469 default:
470 req->result = ENOSYS;
471 break;
472 }
473
474 req->errorno = errno;
475
476 pthread_mutex_lock (&reslock);
477
478 req->next = 0;
479
480 if (rese)
481 {
482 rese->next = req;
483 rese = req;
484 } 430 }
485 else 431 else
486 { 432 {
487 rese = ress = req; 433 sv_result = newSViv (req->result);
488 434 SvREADONLY_on (sv_result);
489 /* write a dummy byte to the pipe so fh becomes ready */
490 write (respipe [1], &respipe, 1);
491 } 435 }
492 436
493 pthread_mutex_unlock (&reslock); 437 switch (req->type)
438 {
439 case EIO_WD_OPEN:
440 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
441 break;
442
443 case EIO_READDIR:
444 {
445 SV *rv = &PL_sv_undef;
446
447 if (req->result >= 0)
448 {
449 int i;
450 char *names = (char *)req->ptr2;
451 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
452 AV *av = newAV ();
453
454 av_extend (av, req->result - 1);
455
456 for (i = 0; i < req->result; ++i)
457 {
458 if (req->int1 & EIO_READDIR_DENTS)
459 {
460 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
461
462 if (req->int1 & EIO_READDIR_CUSTOM2)
463 {
464 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
465 AV *avent = newAV ();
466
467 av_extend (avent, 2);
468
469 if (!sv_type [ent->type])
470 {
471 sv_type [ent->type] = newSViv (ent->type);
472 SvREADONLY_on (sv_type [ent->type]);
473 }
474
475 av_store (avent, 0, namesv);
476 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
477 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
478
479 av_store (av, i, newRV_noinc ((SV *)avent));
480 }
481 else
482 av_store (av, i, namesv);
483
484 ++ent;
485 }
486 else
487 {
488 SV *name = newSVpv (names, 0);
489 av_store (av, i, name);
490 names += SvCUR (name) + 1;
491 }
492 }
493
494 rv = sv_2mortal (newRV_noinc ((SV *)av));
495 }
496
497 PUSHs (rv);
498
499 if (req->int1 & EIO_READDIR_CUSTOM1)
500 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
501 }
502 break;
503
504 case EIO_OPEN:
505 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
506 break;
507
508 case EIO_STATVFS:
509 case EIO_FSTATVFS:
510 {
511 SV *rv = &PL_sv_undef;
512
513#ifndef _WIN32
514 if (req->result >= 0)
515 {
516 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
517 HV *hv = newHV ();
518 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
519 * chooses to make it a struct.
520 */
521 unsigned long fsid = 0;
522 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
523
524 rv = sv_2mortal (newRV_noinc ((SV *)hv));
525
526 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
527 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
528 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
529 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
530 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
531 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
532 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
533 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
534 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
535 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
536 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
537 }
538#endif
539
540 PUSHs (rv);
541 }
542
543 break;
544
545 case EIO_GROUP:
546 req->int1 = 2; /* mark group as finished */
547
548 if (req->sv1)
549 {
550 int i;
551 AV *av = (AV *)req->sv1;
552
553 EXTEND (SP, AvFILL (av) + 1);
554 for (i = 0; i <= AvFILL (av); ++i)
555 PUSHs (*av_fetch (av, i, 0));
556 }
557 break;
558
559 case EIO_NOP:
560 case EIO_BUSY:
561 break;
562
563 case EIO_READLINK:
564 case EIO_REALPATH:
565 if (req->result > 0)
566 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
567 break;
568
569 case EIO_STAT:
570 case EIO_LSTAT:
571 case EIO_FSTAT:
572 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
573
574 if (!(PL_laststatval = req->result))
575 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
576 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
577
578 PUSHs (sv_result);
579 break;
580
581 case EIO_SEEK:
582 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
583 break;
584
585 case EIO_READ:
586 {
587 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
588 *SvEND (req->sv2) = 0;
589 SvPOK_only (req->sv2);
590 SvSETMAGIC (req->sv2);
591 PUSHs (sv_result);
592 }
593 break;
594
595 case EIO_CUSTOM:
596 if (req->feed == fiemap)
597 {
598#if HAVE_FIEMAP
599 if (!req->result)
600 {
601 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
602
603 if (fiemap->fm_extent_count)
604 {
605 AV *av = newAV ();
606 int i;
607
608 while (fiemap->fm_mapped_extents)
609 {
610 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
611 AV *ext_av = newAV ();
612
613 av_store (ext_av, 3, newSVuv (extent->fe_flags));
614 av_store (ext_av, 2, newSVval64 (extent->fe_length));
615 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
616 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
617
618 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
619 }
620
621 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
622 }
623 else
624 {
625 SvIV_set (sv_result, fiemap->fm_mapped_extents);
626 PUSHs (sv_result);
627 }
628 }
629#endif
630 }
631 else
632 PUSHs (sv_result);
633 break;
634
635 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
636 if (req->result > 0)
637 SvIV_set (sv_result, 0);
638 /* FALLTHROUGH */
639
640 default:
641 PUSHs (sv_result);
642 break;
643 }
644
645 errno = req->errorno;
646
647 PUTBACK;
648 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
649 SPAGAIN;
650
651 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
652 SvREFCNT_dec (sv_result);
653 else
654 sv_result_cache = sv_result;
655
656 FREETMPS;
657 LEAVE;
658
659 PUTBACK;
494 } 660 }
495 while (type != REQ_QUIT); 661
662 return !!SvTRUE (ERRSV);
663}
664
665static void
666req_destroy (aio_req req)
667{
668 if (req->self)
669 {
670 sv_unmagic (req->self, PERL_MAGIC_ext);
671 SvREFCNT_dec (req->self);
672 }
673
674 SvREFCNT_dec (req->sv1);
675 SvREFCNT_dec (req->sv2);
676 SvREFCNT_dec (req->sv3);
677 SvREFCNT_dec (req->sv4);
678 SvREFCNT_dec (req->callback);
679
680 free (req);
681}
682
683static void
684req_cancel_subs (aio_req grp)
685{
686 if (grp->type != EIO_GROUP)
687 return;
688
689 SvREFCNT_dec (grp->sv2);
690 grp->sv2 = 0;
691
692 eio_grp_cancel (grp);
693}
694
695static void ecb_cold
696create_respipe (void)
697{
698 if (s_epipe_renew (&respipe))
699 croak ("IO::AIO: unable to initialize result pipe");
700}
701
702static void
703poll_wait (void)
704{
705 while (eio_nreqs ())
706 {
707 int size;
708
709 X_LOCK (EIO_POOL->reslock);
710 size = EIO_POOL->res_queue.size;
711 X_UNLOCK (EIO_POOL->reslock);
712
713 if (size)
714 return;
715
716 etp_maybe_start_thread (EIO_POOL);
717
718 s_epipe_wait (&respipe);
719 }
720}
721
722static int
723poll_cb (void)
724{
725 for (;;)
726 {
727 int res = eio_poll ();
728
729 if (res > 0)
730 croak (0);
731
732 if (!max_outstanding || max_outstanding > eio_nreqs ())
733 return res;
734
735 poll_wait ();
736 }
737}
738
739static void ecb_cold
740reinit (void)
741{
742 create_respipe ();
743
744 if (eio_init (want_poll, done_poll) < 0)
745 croak ("IO::AIO: unable to initialise eio library");
746}
747
748/*****************************************************************************/
749
750#if !_POSIX_MAPPED_FILES
751# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
752# define munmap(addr,length) EIO_ENOSYS ()
753#endif
754
755#if !_POSIX_MEMORY_PROTECTION
756# define mprotect(addr,len,prot) EIO_ENOSYS ()
757#endif
758
759#define MMAP_MAGIC PERL_MAGIC_ext
760
761static int ecb_cold
762mmap_free (pTHX_ SV *sv, MAGIC *mg)
763{
764 int old_errno = errno;
765 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
766 errno = old_errno;
767
768 mg->mg_obj = 0; /* just in case */
769
770 SvREADONLY_off (sv);
771
772 if (SvPVX (sv) != mg->mg_ptr)
773 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
774
775 SvCUR_set (sv, 0);
776 SvPVX (sv) = 0;
777 SvOK_off (sv);
496 778
497 return 0; 779 return 0;
498} 780}
499 781
782static MGVTBL mmap_vtbl = {
783 0, 0, 0, 0, mmap_free
784};
785
786/*****************************************************************************/
787
788static SV *
789get_cb (SV *cb_sv)
790{
791 SvGETMAGIC (cb_sv);
792 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
793}
794
795static aio_req ecb_noinline
796dreq (SV *callback)
797{
798 SV *cb_cv;
799 aio_req req;
800 int req_pri = next_pri;
801 next_pri = EIO_PRI_DEFAULT;
802
803 cb_cv = get_cb (callback);
804
805 req = calloc (sizeof (*req), 1);
806 if (!req)
807 croak ("out of memory during eio_req allocation");
808
809 req->callback = SvREFCNT_inc (cb_cv);
810 req->pri = req_pri;
811
812 return req;
813}
814
500#define dREQ \ 815#define dREQ \
501 aio_req req; \ 816 aio_req req = dreq (callback); \
817
818#define REQ_SEND \
819 PUTBACK; \
820 req_submit (req); \
821 SPAGAIN; \
502 \ 822 \
503 if (SvOK (callback) && !SvROK (callback)) \ 823 if (GIMME_V != G_VOID) \
504 croak ("clalback must be undef or of reference type"); \ 824 XPUSHs (req_sv (req, aio_req_stash));
505 \ 825
506 Newz (0, req, 1, aio_cb); \ 826ecb_inline void
507 if (!req) \ 827req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
508 croak ("out of memory during aio_req allocation"); \ 828{
509 \ 829 if (expect_false (SvROK (path)))
510 req->callback = newSVsv (callback); 830 {
511 831 SV *rv = SvRV (path);
832 SV *wdob;
833
834 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
835 {
836 path = AvARRAY (rv)[1];
837 wdob = AvARRAY (rv)[0];
838
839 if (SvOK (wdob))
840 {
841 *wd = SvAIO_WD (wdob);
842 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
843 }
844 else
845 *wd = EIO_INVALID_WD;
846 }
847 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
848 {
849 *wd = (aio_wd)(long)SvIVX (rv);
850 *wdsv = SvREFCNT_inc_NN (rv);
851 *ptr = ".";
852 return; /* path set to "." */
853 }
854 else
855 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
856 }
857
858 *pathsv = newSVsv (path);
859 *ptr = SvPVbyte_nolen (*pathsv);
860}
861
862static void ecb_noinline
863req_set_path1 (aio_req req, SV *path)
864{
865 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
866}
867
868static void ecb_noinline
869req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
870{
871 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
872
873 switch (SvTYPE (rv))
874 {
875 case SVt_PVIO:
876 case SVt_PVLV:
877 case SVt_PVGV:
878 req->type = type_fh;
879 req->sv1 = newSVsv (fh_or_path);
880 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
881 break;
882
883 default:
884 req->type = type_path;
885 req_set_path1 (req, fh_or_path);
886 break;
887 }
888}
889
890XS(boot_IO__AIO) ecb_cold;
891
512MODULE = IO::AIO PACKAGE = IO::AIO 892MODULE = IO::AIO PACKAGE = IO::AIO
513 893
514PROTOTYPES: ENABLE 894PROTOTYPES: ENABLE
515 895
516BOOT: 896BOOT:
517{ 897{
518 create_pipe (); 898 static const struct {
519 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 899 const char *name;
520} 900 IV iv;
901 } *civ, const_iv[] = {
902# define const_niv(name, value) { # name, (IV) value },
903# define const_iv(name) { # name, (IV) name },
904# define const_eio(name) { # name, (IV) EIO_ ## name },
521 905
906 /* you have to re-run ./gendef0 after adding/removing any constants here */
907 /* the first block can be undef if missing */
908 const_iv (ENOSYS)
909 const_iv (EXDEV)
910 const_iv (EBADR)
911
912 /* for lseek */
913 const_iv (SEEK_DATA)
914 const_iv (SEEK_HOLE)
915
916 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
917 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
918 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
919 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
920 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
921 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
922
923 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
924 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
925 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
926 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
927 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
928
929 /* the second block will be 0 when missing */
930 const_iv (O_RDONLY)
931 const_iv (O_WRONLY)
932 const_iv (O_RDWR)
933 const_iv (O_CREAT)
934 const_iv (O_TRUNC)
935 const_iv (O_EXCL)
936 const_iv (O_APPEND)
937
938 const_iv (O_ASYNC)
939 const_iv (O_DIRECT)
940 const_iv (O_NOATIME)
941
942 const_iv (O_CLOEXEC)
943 const_iv (O_NOCTTY)
944 const_iv (O_NOFOLLOW)
945 const_iv (O_NONBLOCK)
946 const_iv (O_EXEC)
947 const_iv (O_SEARCH)
948 const_iv (O_DIRECTORY)
949 const_iv (O_DSYNC)
950 const_iv (O_RSYNC)
951 const_iv (O_SYNC)
952 const_iv (O_PATH)
953 const_iv (O_TMPFILE)
954 const_iv (O_TTY_INIT)
955
956 const_iv (S_IFIFO)
957 const_iv (S_IFCHR)
958 const_iv (S_IFBLK)
959 const_iv (S_IFLNK)
960 const_iv (S_IFREG)
961 const_iv (S_IFDIR)
962 const_iv (S_IFWHT)
963 const_iv (S_IFSOCK)
964 const_iv (S_IFMT)
965
966 const_iv (ST_RDONLY)
967 const_iv (ST_NOSUID)
968 const_iv (ST_NODEV)
969 const_iv (ST_NOEXEC)
970 const_iv (ST_SYNCHRONOUS)
971 const_iv (ST_MANDLOCK)
972 const_iv (ST_WRITE)
973 const_iv (ST_APPEND)
974 const_iv (ST_IMMUTABLE)
975 const_iv (ST_NOATIME)
976 const_iv (ST_NODIRATIME)
977 const_iv (ST_RELATIME)
978
979 const_iv (PROT_NONE)
980 const_iv (PROT_EXEC)
981 const_iv (PROT_READ)
982 const_iv (PROT_WRITE)
983
984 const_iv (MAP_PRIVATE)
985 const_iv (MAP_SHARED)
986 const_iv (MAP_FIXED)
987 const_iv (MAP_ANONYMOUS)
988
989 /* linuxish */
990 const_iv (MAP_LOCKED)
991 const_iv (MAP_NORESERVE)
992 const_iv (MAP_POPULATE)
993 const_iv (MAP_NONBLOCK)
994 const_iv (MAP_GROWSDOWN)
995 const_iv (MAP_32BIT)
996 const_iv (MAP_HUGETLB)
997 const_iv (MAP_STACK)
998
999 const_iv (FIEMAP_FLAG_SYNC)
1000 const_iv (FIEMAP_FLAG_XATTR)
1001 const_iv (FIEMAP_FLAGS_COMPAT)
1002 const_iv (FIEMAP_EXTENT_LAST)
1003 const_iv (FIEMAP_EXTENT_UNKNOWN)
1004 const_iv (FIEMAP_EXTENT_DELALLOC)
1005 const_iv (FIEMAP_EXTENT_ENCODED)
1006 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1007 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1008 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1009 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1010 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1011 const_iv (FIEMAP_EXTENT_MERGED)
1012 const_iv (FIEMAP_EXTENT_SHARED)
1013
1014 const_iv (SPLICE_F_MOVE)
1015 const_iv (SPLICE_F_NONBLOCK)
1016 const_iv (SPLICE_F_MORE)
1017 const_iv (SPLICE_F_GIFT)
1018
1019 /* these are libeio constants, and are independent of gendef0 */
1020 const_eio (SEEK_SET)
1021 const_eio (SEEK_CUR)
1022 const_eio (SEEK_END)
1023
1024 const_eio (MCL_FUTURE)
1025 const_eio (MCL_CURRENT)
1026
1027 const_eio (MS_ASYNC)
1028 const_eio (MS_INVALIDATE)
1029 const_eio (MS_SYNC)
1030
1031 const_eio (MT_MODIFY)
1032
1033 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1034 const_eio (SYNC_FILE_RANGE_WRITE)
1035 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1036
1037 const_eio (FALLOC_FL_KEEP_SIZE)
1038 const_eio (FALLOC_FL_PUNCH_HOLE)
1039 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1040 const_eio (FALLOC_FL_ZERO_RANGE)
1041
1042 const_eio (READDIR_DENTS)
1043 const_eio (READDIR_DIRS_FIRST)
1044 const_eio (READDIR_STAT_ORDER)
1045 const_eio (READDIR_FOUND_UNKNOWN)
1046
1047 const_eio (DT_UNKNOWN)
1048 const_eio (DT_FIFO)
1049 const_eio (DT_CHR)
1050 const_eio (DT_DIR)
1051 const_eio (DT_BLK)
1052 const_eio (DT_REG)
1053 const_eio (DT_LNK)
1054 const_eio (DT_SOCK)
1055 const_eio (DT_WHT)
1056 };
1057
1058 aio_stash = gv_stashpv ("IO::AIO" , 1);
1059 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1060 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1061 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1062
1063 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1064 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1065
1066 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1067
1068 reinit ();
1069}
1070
522void 1071void
523min_parallel(nthreads) 1072reinit ()
524 int nthreads 1073 PROTOTYPE:
1074
1075void
1076max_poll_reqs (unsigned int nreqs)
525 PROTOTYPE: $ 1077 PROTOTYPE: $
1078 CODE:
1079 eio_set_max_poll_reqs (nreqs);
526 1080
527void 1081void
528max_parallel(nthreads) 1082max_poll_time (double nseconds)
529 int nthreads
530 PROTOTYPE: $ 1083 PROTOTYPE: $
531
532int
533max_outstanding(nreqs)
534 int nreqs
535 PROTOTYPE: $
536 CODE: 1084 CODE:
537 RETVAL = max_outstanding; 1085 eio_set_max_poll_time (nseconds);
1086
1087void
1088min_parallel (unsigned int nthreads)
1089 PROTOTYPE: $
1090 CODE:
1091 eio_set_min_parallel (nthreads);
1092
1093void
1094max_parallel (unsigned int nthreads)
1095 PROTOTYPE: $
1096 CODE:
1097 eio_set_max_parallel (nthreads);
1098
1099void
1100max_idle (unsigned int nthreads)
1101 PROTOTYPE: $
1102 CODE:
1103 eio_set_max_idle (nthreads);
1104
1105void
1106idle_timeout (unsigned int seconds)
1107 PROTOTYPE: $
1108 CODE:
1109 eio_set_idle_timeout (seconds);
1110
1111void
1112max_outstanding (unsigned int maxreqs)
1113 PROTOTYPE: $
1114 CODE:
538 max_outstanding = nreqs; 1115 max_outstanding = maxreqs;
539 1116
540void 1117void
541aio_open(pathname,flags,mode,callback=&PL_sv_undef) 1118aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
542 SV * pathname
543 int flags
544 int mode
545 SV * callback
546 PROTOTYPE: $$$;$
547 CODE: 1119 PPCODE:
548{ 1120{
549 dREQ; 1121 dREQ;
550 1122
1123 req->type = EIO_WD_OPEN;
1124 req_set_path1 (req, pathname);
1125
1126 REQ_SEND;
1127}
1128
1129void
1130aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1131 PPCODE:
1132{
1133 dREQ;
1134
551 req->type = REQ_OPEN; 1135 req->type = EIO_OPEN;
552 req->data = newSVsv (pathname); 1136 req_set_path1 (req, pathname);
553 req->dataptr = SvPVbyte_nolen (req->data);
554 req->fd = flags; 1137 req->int1 = flags;
555 req->mode = mode; 1138 req->int2 = mode;
556 1139
557 send_req (req); 1140 REQ_SEND;
558} 1141}
559 1142
560void 1143void
561aio_close(fh,callback=&PL_sv_undef) 1144aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
562 SV * fh
563 SV * callback
564 PROTOTYPE: $;$
565 ALIAS: 1145 ALIAS:
566 aio_close = REQ_CLOSE
567 aio_fsync = REQ_FSYNC 1146 aio_fsync = EIO_FSYNC
568 aio_fdatasync = REQ_FDATASYNC 1147 aio_fdatasync = EIO_FDATASYNC
1148 aio_syncfs = EIO_SYNCFS
569 CODE: 1149 PPCODE:
570{ 1150{
1151 int fd = s_fileno_croak (fh, 0);
571 dREQ; 1152 dREQ;
572 1153
573 req->type = ix; 1154 req->type = ix;
574 req->fh = newSVsv (fh); 1155 req->sv1 = newSVsv (fh);
575 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1156 req->int1 = fd;
576 1157
577 send_req (req); 1158 REQ_SEND;
578} 1159}
579 1160
580void 1161void
1162aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1163 PPCODE:
1164{
1165 int fd = s_fileno_croak (fh, 0);
1166 dREQ;
1167
1168 req->type = EIO_SYNC_FILE_RANGE;
1169 req->sv1 = newSVsv (fh);
1170 req->int1 = fd;
1171 req->offs = offset;
1172 req->size = nbytes;
1173 req->int2 = flags;
1174
1175 REQ_SEND;
1176}
1177
1178void
1179aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1180 PPCODE:
1181{
1182 int fd = s_fileno_croak (fh, 0);
1183 dREQ;
1184
1185 req->type = EIO_FALLOCATE;
1186 req->sv1 = newSVsv (fh);
1187 req->int1 = fd;
1188 req->int2 = mode;
1189 req->offs = offset;
1190 req->size = len;
1191
1192 REQ_SEND;
1193}
1194
1195void
1196aio_close (SV *fh, SV *callback = &PL_sv_undef)
1197 PPCODE:
1198{
1199 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1200 int fd = s_fileno_croak (fh, 0);
1201 dREQ;
1202
1203 if (expect_false (close_fd < 0))
1204 {
1205 int pipefd [2];
1206
1207 if (
1208#ifdef _WIN32
1209 _pipe (pipefd, 1, _O_BINARY) < 0
1210#else
1211 pipe (pipefd) < 0
1212 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1213#endif
1214 || close (pipefd [1]) < 0
1215 )
1216 abort (); /*D*/
1217
1218 close_fd = pipefd [0];
1219 }
1220
1221 req->type = EIO_DUP2;
1222 req->int1 = close_fd;
1223 req->sv2 = newSVsv (fh);
1224 req->int2 = fd;
1225
1226 REQ_SEND;
1227}
1228
1229void
1230aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1231 PPCODE:
1232{
1233 int fd = s_fileno_croak (fh, 0);
1234 dREQ;
1235
1236 req->type = EIO_SEEK;
1237 req->sv1 = newSVsv (fh);
1238 req->int1 = fd;
1239 req->offs = SvVAL64 (offset);
1240 req->int2 = whence;
1241
1242 REQ_SEND;
1243}
1244
1245void
581aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1246aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
582 SV * fh
583 UV offset
584 IV length
585 SV * data
586 IV dataoffset
587 SV * callback
588 ALIAS: 1247 ALIAS:
589 aio_read = REQ_READ 1248 aio_read = EIO_READ
590 aio_write = REQ_WRITE 1249 aio_write = EIO_WRITE
591 PROTOTYPE: $$$$$;$
592 CODE: 1250 PPCODE:
593{ 1251{
594 aio_req req;
595 STRLEN svlen; 1252 STRLEN svlen;
1253 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
596 char *svptr = SvPVbyte (data, svlen); 1254 char *svptr = SvPVbyte (data, svlen);
597 1255 UV len = SvUV (length);
598 SvUPGRADE (data, SVt_PV);
599 SvPOK_on (data);
600 1256
601 if (dataoffset < 0) 1257 if (dataoffset < 0)
602 dataoffset += svlen; 1258 dataoffset += svlen;
603 1259
604 if (dataoffset < 0 || dataoffset > svlen) 1260 if (dataoffset < 0 || dataoffset > svlen)
605 croak ("data offset outside of string"); 1261 croak ("dataoffset outside of data scalar");
606 1262
607 if (ix == REQ_WRITE) 1263 if (ix == EIO_WRITE)
608 { 1264 {
609 /* write: check length and adjust. */ 1265 /* write: check length and adjust. */
610 if (length < 0 || length + dataoffset > svlen) 1266 if (!SvOK (length) || len + dataoffset > svlen)
611 length = svlen - dataoffset; 1267 len = svlen - dataoffset;
612 } 1268 }
613 else 1269 else
614 { 1270 {
615 /* read: grow scalar as necessary */ 1271 /* read: check type and grow scalar as necessary */
1272 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
616 svptr = SvGROW (data, length + dataoffset); 1273 svptr = sv_grow (data, len + dataoffset + 1);
1274 else if (SvCUR (data) < len + dataoffset)
1275 croak ("length + dataoffset outside of scalar, and cannot grow");
617 } 1276 }
618
619 if (length < 0)
620 croak ("length must not be negative");
621 1277
622 { 1278 {
623 dREQ; 1279 dREQ;
624 1280
625 req->type = ix; 1281 req->type = ix;
626 req->fh = newSVsv (fh); 1282 req->sv1 = newSVsv (fh);
627 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1283 req->int1 = fd;
628 : IoOFP (sv_2io (fh))); 1284 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
629 req->offset = offset; 1285 req->size = len;
630 req->length = length;
631 req->data = SvREFCNT_inc (data); 1286 req->sv2 = SvREFCNT_inc (data);
632 req->dataptr = (char *)svptr + dataoffset; 1287 req->ptr2 = (char *)svptr + dataoffset;
1288 req->stroffset = dataoffset;
633 1289
634 send_req (req); 1290 if (!SvREADONLY (data))
1291 {
1292 SvREADONLY_on (data);
1293 req->flags |= FLAG_SV2_RO_OFF;
1294 }
1295
1296 REQ_SEND;
635 } 1297 }
636} 1298}
637 1299
638void 1300void
639aio_readahead(fh,offset,length,callback=&PL_sv_undef) 1301aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
640 SV * fh 1302 ALIAS:
641 UV offset 1303 aio_readlink = EIO_READLINK
642 IV length 1304 aio_realpath = EIO_REALPATH
643 SV * callback
644 PROTOTYPE: $$$;$
645 CODE: 1305 PPCODE:
646{ 1306{
1307 dREQ;
1308
1309 req->type = ix;
1310 req_set_path1 (req, pathname);
1311
1312 REQ_SEND;
1313}
1314
1315void
1316aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1317 PPCODE:
1318{
1319 int ifd = s_fileno_croak (in_fh , 0);
1320 int ofd = s_fileno_croak (out_fh, 1);
647 dREQ; 1321 dREQ;
648 1322
1323 req->type = EIO_SENDFILE;
1324 req->sv1 = newSVsv (out_fh);
1325 req->int1 = ofd;
1326 req->sv2 = newSVsv (in_fh);
1327 req->int2 = ifd;
1328 req->offs = in_offset;
1329 req->size = length;
1330
1331 REQ_SEND;
1332}
1333
1334void
1335aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1336 PPCODE:
1337{
1338 int fd = s_fileno_croak (fh, 0);
1339 dREQ;
1340
649 req->type = REQ_READAHEAD; 1341 req->type = EIO_READAHEAD;
650 req->fh = newSVsv (fh); 1342 req->sv1 = newSVsv (fh);
651 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1343 req->int1 = fd;
652 req->offset = offset; 1344 req->offs = offset;
653 req->length = length; 1345 req->size = length;
654 1346
655 send_req (req); 1347 REQ_SEND;
656} 1348}
657 1349
658void 1350void
659aio_stat(fh_or_path,callback=&PL_sv_undef) 1351aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
660 SV * fh_or_path
661 SV * callback
662 ALIAS: 1352 ALIAS:
663 aio_stat = REQ_STAT 1353 aio_stat = EIO_STAT
664 aio_lstat = REQ_LSTAT 1354 aio_lstat = EIO_LSTAT
1355 aio_statvfs = EIO_STATVFS
1356 PPCODE:
1357{
1358 dREQ;
1359
1360 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1361
1362 REQ_SEND;
1363}
1364
1365UV
1366major (UV dev)
1367 ALIAS:
1368 minor = 1
665 CODE: 1369 CODE:
1370 RETVAL = ix ? major (dev) : minor (dev);
1371 OUTPUT:
1372 RETVAL
1373
1374UV
1375makedev (UV maj, UV min)
1376 CODE:
1377 RETVAL = makedev (maj, min);
1378 OUTPUT:
1379 RETVAL
1380
1381void
1382aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1383 PPCODE:
666{ 1384{
667 dREQ; 1385 dREQ;
668 1386
669 New (0, req->statdata, 1, Stat_t); 1387 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
670 if (!req->statdata) 1388 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
671 { 1389 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
672 free_req (req);
673 croak ("out of memory during aio_req->statdata allocation");
674 }
675 1390
676 if (SvPOK (fh_or_path)) 1391 REQ_SEND;
677 {
678 req->type = ix;
679 req->data = newSVsv (fh_or_path);
680 req->dataptr = SvPVbyte_nolen (req->data);
681 }
682 else
683 {
684 req->type = REQ_FSTAT;
685 req->fh = newSVsv (fh_or_path);
686 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
687 }
688
689 send_req (req);
690} 1392}
691 1393
692void 1394void
1395aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1396 PPCODE:
1397{
1398 dREQ;
1399
1400 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1401 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1402
1403 REQ_SEND;
1404}
1405
1406void
1407aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1408 PPCODE:
1409{
1410 dREQ;
1411
1412 req->int2 = mode;
1413 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1414
1415 REQ_SEND;
1416}
1417
1418void
1419aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1420 PPCODE:
1421{
1422 dREQ;
1423
1424 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1425 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1426 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1427
1428 REQ_SEND;
1429}
1430
1431void
1432aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1433 PPCODE:
1434{
1435 dREQ;
1436
1437 req->type = EIO_READDIR;
1438 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1439
1440 if (flags & EIO_READDIR_DENTS)
1441 req->int1 |= EIO_READDIR_CUSTOM2;
1442
1443 req_set_path1 (req, pathname);
1444
1445 REQ_SEND;
1446}
1447
1448void
1449aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1450 PPCODE:
1451{
1452 dREQ;
1453
1454 req->type = EIO_MKDIR;
1455 req->int2 = mode;
1456 req_set_path1 (req, pathname);
1457
1458 REQ_SEND;
1459}
1460
1461void
693aio_unlink(pathname,callback=&PL_sv_undef) 1462aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
694 SV * pathname
695 SV * callback
696 ALIAS: 1463 ALIAS:
697 aio_unlink = REQ_UNLINK 1464 aio_unlink = EIO_UNLINK
698 aio_rmdir = REQ_RMDIR 1465 aio_rmdir = EIO_RMDIR
1466 aio_readdir = EIO_READDIR
699 CODE: 1467 PPCODE:
700{ 1468{
701 dREQ; 1469 dREQ;
702 1470
703 req->type = ix; 1471 req->type = ix;
704 req->data = newSVsv (pathname); 1472 req_set_path1 (req, pathname);
705 req->dataptr = SvPVbyte_nolen (req->data);
706
707 send_req (req);
708}
709 1473
1474 REQ_SEND;
1475}
1476
710void 1477void
711aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1478aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
712 SV * oldpath 1479 ALIAS:
713 SV * newpath 1480 aio_link = EIO_LINK
714 SV * callback 1481 aio_symlink = EIO_SYMLINK
1482 aio_rename = EIO_RENAME
715 CODE: 1483 PPCODE:
716{ 1484{
1485 eio_wd wd2 = 0;
717 dREQ; 1486 dREQ;
718 1487
719 req->type = REQ_SYMLINK; 1488 req->type = ix;
720 req->fh = newSVsv (oldpath); 1489 req_set_path1 (req, oldpath);
721 req->data2ptr = SvPVbyte_nolen (req->fh); 1490 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
722 req->data = newSVsv (newpath); 1491 req->int3 = (long)wd2;
723 req->dataptr = SvPVbyte_nolen (req->data);
724 1492
725 send_req (req); 1493 REQ_SEND;
726} 1494}
727 1495
728void 1496void
729flush() 1497aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
730 PROTOTYPE: 1498 PPCODE:
1499{
1500 dREQ;
1501
1502 req->type = EIO_MKNOD;
1503 req->int2 = (mode_t)mode;
1504 req->offs = dev;
1505 req_set_path1 (req, pathname);
1506
1507 REQ_SEND;
1508}
1509
1510void
1511aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
1512 ALIAS:
1513 aio_mtouch = EIO_MTOUCH
1514 aio_msync = EIO_MSYNC
1515 PPCODE:
1516{
1517 STRLEN svlen;
1518 char *svptr = SvPVbyte (data, svlen);
1519 UV len = SvUV (length);
1520
1521 if (offset < 0)
1522 offset += svlen;
1523
1524 if (offset < 0 || offset > svlen)
1525 croak ("offset outside of scalar");
1526
1527 if (!SvOK (length) || len + offset > svlen)
1528 len = svlen - offset;
1529
1530 {
1531 dREQ;
1532
1533 req->type = ix;
1534 req->sv2 = SvREFCNT_inc (data);
1535 req->ptr2 = (char *)svptr + offset;
1536 req->size = len;
1537 req->int1 = flags;
1538
1539 REQ_SEND;
1540 }
1541}
1542
1543void
1544aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1545 PPCODE:
1546{
1547 STRLEN svlen;
1548 char *svptr = SvPVbyte (data, svlen);
1549 UV len = SvUV (length);
1550
1551 if (offset < 0)
1552 offset += svlen;
1553
1554 if (offset < 0 || offset > svlen)
1555 croak ("offset outside of scalar");
1556
1557 if (!SvOK (length) || len + offset > svlen)
1558 len = svlen - offset;
1559
1560 {
1561 dREQ;
1562
1563 req->type = EIO_MLOCK;
1564 req->sv2 = SvREFCNT_inc (data);
1565 req->ptr2 = (char *)svptr + offset;
1566 req->size = len;
1567
1568 REQ_SEND;
1569 }
1570}
1571
1572void
1573aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1574 PPCODE:
1575{
1576 dREQ;
1577
1578 req->type = EIO_MLOCKALL;
1579 req->int1 = flags;
1580
1581 REQ_SEND;
1582}
1583
1584void
1585aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1586 PPCODE:
1587{
1588 int fd = s_fileno_croak (fh, 0);
1589 dREQ;
1590
1591 req->type = EIO_CUSTOM;
1592 req->sv1 = newSVsv (fh);
1593 req->int1 = fd;
1594
1595 req->feed = fiemap;
1596#if HAVE_FIEMAP
1597 /* keep our fingers crossed that the next two types are 64 bit */
1598 req->offs = start;
1599 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1600 req->int2 = flags;
1601 req->int3 = SvOK (count) ? SvIV (count) : -1;
1602#endif
1603
1604 REQ_SEND;
1605}
1606
1607void
1608aio_busy (double delay, SV *callback = &PL_sv_undef)
1609 PPCODE:
1610{
1611 dREQ;
1612
1613 req->type = EIO_BUSY;
1614 req->nv1 = delay < 0. ? 0. : delay;
1615
1616 REQ_SEND;
1617}
1618
1619void
1620aio_group (SV *callback = &PL_sv_undef)
1621 PPCODE:
1622{
1623 dREQ;
1624
1625 req->type = EIO_GROUP;
1626
1627 PUTBACK;
1628 req_submit (req);
1629 SPAGAIN;
1630
1631 XPUSHs (req_sv (req, aio_grp_stash));
1632}
1633
1634void
1635aio_nop (SV *callback = &PL_sv_undef)
1636 ALIAS:
1637 aio_nop = EIO_NOP
1638 aio_sync = EIO_SYNC
1639 PPCODE:
1640{
1641 dREQ;
1642
1643 req->type = ix;
1644
1645 REQ_SEND;
1646}
1647
1648int
1649aioreq_pri (int pri = NO_INIT)
731 CODE: 1650 CODE:
1651 RETVAL = next_pri;
1652 if (items > 0)
1653 {
1654 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1655 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1656 next_pri = pri;
1657 }
1658 OUTPUT:
1659 RETVAL
1660
1661void
1662aioreq_nice (int nice = 0)
1663 CODE:
1664 nice = next_pri - nice;
1665 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1666 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1667 next_pri = nice;
1668
1669void
1670flush ()
1671 CODE:
732 while (nreqs) 1672 while (eio_nreqs ())
733 { 1673 {
734 poll_wait (); 1674 poll_wait ();
735 poll_cb (); 1675 poll_cb ();
736 } 1676 }
737 1677
738void 1678int
739poll() 1679poll ()
740 PROTOTYPE:
741 CODE: 1680 CODE:
742 if (nreqs)
743 {
744 poll_wait (); 1681 poll_wait ();
745 poll_cb (); 1682 RETVAL = poll_cb ();
746 }
747
748int
749poll_fileno()
750 PROTOTYPE:
751 CODE:
752 RETVAL = respipe [0];
753 OUTPUT: 1683 OUTPUT:
754 RETVAL 1684 RETVAL
755 1685
756int 1686int
1687poll_fileno ()
1688 CODE:
1689 RETVAL = s_epipe_fd (&respipe);
1690 OUTPUT:
1691 RETVAL
1692
1693int
757poll_cb(...) 1694poll_cb (...)
758 PROTOTYPE: 1695 PROTOTYPE:
759 CODE: 1696 CODE:
760 RETVAL = poll_cb (); 1697 RETVAL = poll_cb ();
761 OUTPUT: 1698 OUTPUT:
762 RETVAL 1699 RETVAL
763 1700
764void 1701void
765poll_wait() 1702poll_wait ()
766 PROTOTYPE:
767 CODE: 1703 CODE:
768 if (nreqs)
769 poll_wait (); 1704 poll_wait ();
770 1705
771int 1706int
772nreqs() 1707nreqs ()
773 PROTOTYPE:
774 CODE: 1708 CODE:
775 RETVAL = nreqs; 1709 RETVAL = eio_nreqs ();
776 OUTPUT: 1710 OUTPUT:
777 RETVAL 1711 RETVAL
778 1712
1713int
1714nready ()
1715 CODE:
1716 RETVAL = eio_nready ();
1717 OUTPUT:
1718 RETVAL
1719
1720int
1721npending ()
1722 CODE:
1723 RETVAL = eio_npending ();
1724 OUTPUT:
1725 RETVAL
1726
1727int
1728nthreads ()
1729 CODE:
1730 RETVAL = eio_nthreads ();
1731 OUTPUT:
1732 RETVAL
1733
1734int
1735fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1736 CODE:
1737 RETVAL = posix_fadvise (fh, offset, length, advice);
1738 OUTPUT:
1739 RETVAL
1740
1741IV
1742sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1743 CODE:
1744 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1745 OUTPUT:
1746 RETVAL
1747
1748void
1749mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1750 PPCODE:
1751 sv_unmagic (scalar, MMAP_MAGIC);
1752{
1753 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1754 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1755 if (addr == (void *)-1)
1756 XSRETURN_NO;
1757
1758 sv_force_normal (scalar);
1759
1760 /* we store the length in mg_obj, as namlen is I32 :/ */
1761 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1762 ->mg_obj = (SV *)length;
1763
1764 SvUPGRADE (scalar, SVt_PV); /* nop... */
1765
1766 if (!(prot & PROT_WRITE))
1767 SvREADONLY_on (scalar);
1768
1769 if (SvLEN (scalar))
1770 Safefree (SvPVX (scalar));
1771
1772 SvPVX (scalar) = (char *)addr;
1773 SvCUR_set (scalar, length);
1774 SvLEN_set (scalar, 0);
1775 SvPOK_only (scalar);
1776
1777 XSRETURN_YES;
1778}
1779
1780void
1781munmap (SV *scalar)
1782 CODE:
1783 sv_unmagic (scalar, MMAP_MAGIC);
1784
1785int
1786madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1787 ALIAS:
1788 mprotect = 1
1789 CODE:
1790{
1791 STRLEN svlen;
1792 void *addr = SvPVbyte (scalar, svlen);
1793 STRLEN len = SvUV (length);
1794
1795 if (offset < 0)
1796 offset += svlen;
1797
1798 if (offset < 0 || offset > svlen)
1799 croak ("offset outside of scalar");
1800
1801 if (!SvOK (length) || len + offset > svlen)
1802 len = svlen - offset;
1803
1804 addr = (void *)(((intptr_t)addr) + offset);
1805 eio_page_align (&addr, &len);
1806
1807 switch (ix)
1808 {
1809 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1810 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1811 }
1812}
1813 OUTPUT:
1814 RETVAL
1815
1816int
1817munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1818 CODE:
1819{
1820 STRLEN svlen;
1821 void *addr = SvPVbyte (scalar, svlen);
1822 size_t len = SvUV (length);
1823
1824 if (offset < 0)
1825 offset += svlen;
1826
1827 if (offset < 0 || offset > svlen)
1828 croak ("offset outside of scalar");
1829
1830 if (!SvOK (length) || len + offset > svlen)
1831 len = svlen - offset;
1832
1833 addr = (void *)(((intptr_t)addr) + offset);
1834 eio_page_align (&addr, &len);
1835#if _POSIX_MEMLOCK_RANGE
1836 RETVAL = munlock (addr, len);
1837#else
1838 RETVAL = EIO_ENOSYS ();
1839#endif
1840}
1841 OUTPUT:
1842 RETVAL
1843
1844int
1845munlockall ()
1846 CODE:
1847#if _POSIX_MEMLOCK
1848 munlockall ();
1849#else
1850 RETVAL = EIO_ENOSYS ();
1851#endif
1852 OUTPUT:
1853 RETVAL
1854
1855int
1856splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1857 CODE:
1858{
1859#if HAVE_LINUX_SPLICE
1860 loff_t off_in_, off_out_;
1861 RETVAL = splice (
1862 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1863 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1864 length, flags
1865 );
1866#else
1867 RETVAL = EIO_ENOSYS ();
1868#endif
1869}
1870 OUTPUT:
1871 RETVAL
1872
1873int
1874tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1875 CODE:
1876#if HAVE_LINUX_SPLICE
1877 RETVAL = tee (rfh, wfh, length, flags);
1878#else
1879 RETVAL = EIO_ENOSYS ();
1880#endif
1881 OUTPUT:
1882 RETVAL
1883
1884int
1885pipesize (aio_rfd rfh, int new_size = -1)
1886 PROTOTYPE: $;$
1887 CODE:
1888#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
1889 if (new_size >= 0)
1890 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
1891 else
1892 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
1893#else
1894 errno = ENOSYS;
1895 RETVAL = -1;
1896#endif
1897 OUTPUT:
1898 RETVAL
1899
1900void
1901pipe2 (int flags = 0)
1902 PROTOTYPE: ;$
1903 PPCODE:
1904{
1905 int fd[2];
1906 int res;
1907
1908 if (flags)
1909#if HAVE_PIPE2
1910 res = pipe2 (fd, flags);
1911#else
1912 res = (errno = ENOSYS, -1);
1913#endif
1914 else
1915 res = pipe (fd);
1916
1917 if (!res)
1918 {
1919 EXTEND (SP, 2);
1920 PUSHs (newmortalFH (fd[0], O_RDONLY));
1921 PUSHs (newmortalFH (fd[1], O_WRONLY));
1922 }
1923}
1924
1925void _on_next_submit (SV *cb)
1926 CODE:
1927 SvREFCNT_dec (on_next_submit);
1928 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1929
1930PROTOTYPES: DISABLE
1931
1932MODULE = IO::AIO PACKAGE = IO::AIO::WD
1933
1934BOOT:
1935{
1936 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1937 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1938}
1939
1940void
1941DESTROY (SV *self)
1942 CODE:
1943{
1944 aio_wd wd = SvAIO_WD (self);
1945#if HAVE_AT
1946 {
1947 SV *callback = &PL_sv_undef;
1948 dREQ; /* clobbers next_pri :/ */
1949 next_pri = req->pri; /* restore next_pri */
1950 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1951 req->type = EIO_WD_CLOSE;
1952 req->wd = wd;
1953 REQ_SEND;
1954 }
1955#else
1956 eio_wd_close_sync (wd);
1957#endif
1958}
1959
1960MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1961
1962void
1963cancel (aio_req_ornot req)
1964 CODE:
1965 eio_cancel (req);
1966
1967void
1968cb (aio_req_ornot req, SV *callback = NO_INIT)
1969 PPCODE:
1970{
1971 if (GIMME_V != G_VOID)
1972 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1973
1974 if (items > 1)
1975 {
1976 SV *cb_cv = get_cb (callback);
1977
1978 SvREFCNT_dec (req->callback);
1979 req->callback = SvREFCNT_inc (cb_cv);
1980 }
1981}
1982
1983MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1984
1985void
1986add (aio_req grp, ...)
1987 PPCODE:
1988{
1989 int i;
1990
1991 if (grp->int1 == 2)
1992 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1993
1994 for (i = 1; i < items; ++i )
1995 {
1996 aio_req req;
1997
1998 if (GIMME_V != G_VOID)
1999 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2000
2001 req = SvAIO_REQ (ST (i));
2002
2003 if (req)
2004 eio_grp_add (grp, req);
2005 }
2006}
2007
2008void
2009cancel_subs (aio_req_ornot req)
2010 CODE:
2011 req_cancel_subs (req);
2012
2013void
2014result (aio_req grp, ...)
2015 CODE:
2016{
2017 int i;
2018 AV *av;
2019
2020 grp->errorno = errno;
2021
2022 av = newAV ();
2023 av_extend (av, items - 1);
2024
2025 for (i = 1; i < items; ++i )
2026 av_push (av, newSVsv (ST (i)));
2027
2028 SvREFCNT_dec (grp->sv1);
2029 grp->sv1 = (SV *)av;
2030}
2031
2032void
2033errno (aio_req grp, int errorno = errno)
2034 CODE:
2035 grp->errorno = errorno;
2036
2037void
2038limit (aio_req grp, int limit)
2039 CODE:
2040 eio_grp_limit (grp, limit);
2041
2042void
2043feed (aio_req grp, SV *callback = &PL_sv_undef)
2044 CODE:
2045{
2046 SvREFCNT_dec (grp->sv2);
2047 grp->sv2 = newSVsv (callback);
2048 grp->feed = aio_grp_feed;
2049
2050 if (grp->int2 <= 0)
2051 grp->int2 = 2;
2052
2053 eio_grp_limit (grp, grp->int2);
2054}
2055

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