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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.34 by root, Tue Aug 23 00:03:14 2005 UTC vs.
Revision 1.234 by root, Thu Jun 25 15:20:11 2015 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
10#include <pthread.h> 11#include <stddef.h>
11 12#include <stdlib.h>
13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
14
15#include <unistd.h> 16#include <limits.h>
16#include <fcntl.h> 17#include <fcntl.h>
17#include <signal.h>
18#include <sched.h> 18#include <sched.h>
19 19
20#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# if __linux
22# include <sys/sendfile.h>
23# elif __freebsd
24# include <sys/socket.h>
25# include <sys/uio.h> 21# include <sys/mman.h>
26# elif __hpux 22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. on't complain if this fails for you.
27 */
28#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
29# include <linux/fs.h>
30# ifdef FS_IOC_FIEMAP
31# include <linux/types.h>
32# include <linux/fiemap.h>
33# define HAVE_FIEMAP 1
34# endif
35#endif
36
37/* perl namespace pollution */
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
83#else
84
85 #include <sys/time.h>
27# include <sys/socket.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
28# else 144# else
29# error sendfile support requested but not available 145# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
30# endif 146# endif
31#endif 147#endif
32 148
33#if __ia64 149/* defines all sorts of constants to 0 unless they are already defined */
34# define STACKSIZE 65536 150#include "def0.h"
35#else
36# define STACKSIZE 4096
37#endif
38 151
39enum { 152#ifndef makedev
40 REQ_QUIT, 153# define makedev(maj,min) (((maj) << 8) | (min))
41 REQ_OPEN, REQ_CLOSE, 154#endif
42 REQ_READ, REQ_WRITE, REQ_READAHEAD, 155#ifndef major
43 REQ_SENDFILE, 156# define major(dev) ((dev) >> 8)
44 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 157#endif
45 REQ_FSYNC, REQ_FDATASYNC, 158#ifndef minor
46 REQ_UNLINK, REQ_RMDIR, 159# define minor(dev) ((dev) & 0xff)
47 REQ_SYMLINK, 160#endif
48};
49 161
50typedef struct aio_cb { 162#if PAGESIZE <= 0
51 struct aio_cb *volatile next; 163# define PAGESIZE sysconf (_SC_PAGESIZE)
164#endif
52 165
53 int type; 166/*****************************************************************************/
54
55 int fd, fd2;
56 off_t offset;
57 size_t length;
58 ssize_t result;
59 mode_t mode; /* open */
60 int errorno;
61 SV *data, *callback;
62 SV *fh, *fh2;
63 void *dataptr, *data2ptr;
64 STRLEN dataoffset;
65
66 Stat_t *statdata;
67} aio_cb;
68
69typedef aio_cb *aio_req;
70
71static int started, wanted;
72static volatile int nreqs;
73static int max_outstanding = 1<<30;
74static int respipe [2];
75
76static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
77static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
78static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
79
80static volatile aio_req reqs, reqe; /* queue start, queue end */
81static volatile aio_req ress, rese; /* queue start, queue end */
82
83static void free_req (aio_req req)
84{
85 if (req->data)
86 SvREFCNT_dec (req->data);
87
88 if (req->fh)
89 SvREFCNT_dec (req->fh);
90
91 if (req->fh2)
92 SvREFCNT_dec (req->fh2);
93
94 if (req->statdata)
95 Safefree (req->statdata);
96
97 if (req->callback)
98 SvREFCNT_dec (req->callback);
99
100 Safefree (req);
101}
102 167
103static void 168static void
104poll_wait () 169fiemap (eio_req *req)
105{ 170{
106 if (nreqs && !ress) 171 req->result = -1;
107 {
108 fd_set rfd;
109 FD_ZERO(&rfd);
110 FD_SET(respipe [0], &rfd);
111 172
112 select (respipe [0] + 1, &rfd, 0, 0, 0); 173#if HAVE_FIEMAP
113 } 174 /* assume some c99 */
114} 175 struct fiemap *fiemap = 0;
176 size_t end_offset;
177 int count = req->int3;
115 178
116static int 179 req->flags |= EIO_FLAG_PTR1_FREE;
117poll_cb () 180
118{ 181 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
119 dSP; 182 /* increase in 3.5kb steps */
183 if (count < 0)
120 int count = 0; 184 count = 8;
121 int do_croak = 0; 185
122 aio_req req; 186 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
187 errno = ENOMEM;
188 if (!fiemap)
189 return;
190
191 req->ptr1 = fiemap;
192
193 fiemap->fm_start = req->offs;
194 fiemap->fm_length = req->size;
195 fiemap->fm_flags = req->int2;
196 fiemap->fm_extent_count = count;
197
198 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
199 return;
200
201 if (req->int3 >= 0 /* not autosizing */
202 || !fiemap->fm_mapped_extents /* no more extents */
203 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
204 goto done;
205
206 /* else we have to loop -
207 * it would be tempting (actually I tried that first) to just query the
208 * number of extents needed, but linux often feels like not returning all
209 * extents, without telling us it left any out. this complicates
210 * this quite a bit.
211 */
212
213 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
123 214
124 for (;;) 215 for (;;)
125 { 216 {
126 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) */
127 req = ress; 218 char scratch[3072];
219 struct fiemap *incmap = (struct fiemap *)scratch;
128 220
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);
226
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;
129 if (req) 236 if (!fiemap)
237 return;
238
239 req->ptr1 = fiemap;
240
241 for (count = 0; count < incmap->fm_mapped_extents; ++count)
130 { 242 {
131 ress = req->next; 243 struct fiemap_extent *e = incmap->fm_extents + count;
132 244
133 if (!ress) 245 if (e->fe_logical + e->fe_length >= end_offset)
134 { 246 goto done;
135 /* read any signals sent by the worker threads */
136 char buf [32];
137 while (read (respipe [0], buf, 32) == 32)
138 ;
139 247
140 rese = 0; 248 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
141 } 249
250 if (e->fe_flags & FIEMAP_EXTENT_LAST)
251 goto done;
252
142 } 253 }
254 }
143 255
144 pthread_mutex_unlock (&reslock); 256done:
257 req->result = 0;
145 258
146 if (!req) 259#else
147 break; 260 errno = ENOSYS;
261#endif
262}
148 263
149 nreqs--; 264/*****************************************************************************/
150 265
151 if (req->type == REQ_QUIT) 266enum {
152 started--; 267 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
153 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 SV *
345newmortalFH (int fd, int flags)
346{
347 if (fd < 0)
348 return &PL_sv_undef;
349
350 GV *gv = (GV *)sv_newmortal ();
351 char sym[64];
352 int symlen;
353
354 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
355 gv_init (gv, aio_stash, sym, symlen, 0);
356
357 symlen = snprintf (
358 sym,
359 sizeof (sym),
360 "%s&=%d",
361 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
362 fd
363 );
364
365 return do_open (gv, sym, symlen, 0, 0, 0, 0)
366 ? (SV *)gv : &PL_sv_undef;
367}
368
369static void
370aio_grp_feed (aio_req grp)
371{
372 if (grp->sv2 && SvOK (grp->sv2))
373 {
374 dSP;
375
376 ENTER;
377 SAVETMPS;
378 PUSHMARK (SP);
379 XPUSHs (req_sv (grp, aio_grp_stash));
380 PUTBACK;
381 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
382 SPAGAIN;
383 FREETMPS;
384 LEAVE;
385 }
386}
387
388static void
389req_submit (eio_req *req)
390{
391 eio_submit (req);
392
393 if (expect_false (on_next_submit))
394 {
395 dSP;
396 SV *cb = sv_2mortal (on_next_submit);
397
398 on_next_submit = 0;
399
400 PUSHMARK (SP);
401 PUTBACK;
402 call_sv (cb, G_DISCARD | G_EVAL);
403 }
404}
405
406static int
407req_invoke (eio_req *req)
408{
409 if (req->flags & FLAG_SV2_RO_OFF)
410 SvREADONLY_off (req->sv2);
411
412 if (!EIO_CANCELLED (req) && req->callback)
413 {
414 dSP;
415 static SV *sv_result_cache; /* caches the result integer SV */
416 SV *sv_result;
417
418 ENTER;
419 SAVETMPS;
420 PUSHMARK (SP);
421 EXTEND (SP, 1);
422
423 /* do not recreate the result IV from scratch each time */
424 if (expect_true (sv_result_cache))
154 { 425 {
155 int errorno = errno; 426 sv_result = sv_result_cache; sv_result_cache = 0;
156 errno = req->errorno; 427 SvIV_set (sv_result, req->result);
157 428 SvIOK_only (sv_result);
158 if (req->type == REQ_READ)
159 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
160
161 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
162 SvREADONLY_off (req->data);
163
164 if (req->statdata)
165 {
166 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
167 PL_laststatval = req->result;
168 PL_statcache = *(req->statdata);
169 }
170
171 ENTER;
172 PUSHMARK (SP);
173 XPUSHs (sv_2mortal (newSViv (req->result)));
174
175 if (req->type == REQ_OPEN)
176 {
177 /* convert fd to fh */
178 SV *fh;
179
180 PUTBACK;
181 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
182 SPAGAIN;
183
184 fh = SvREFCNT_inc (POPs);
185
186 PUSHMARK (SP);
187 XPUSHs (sv_2mortal (fh));
188 }
189
190 if (SvOK (req->callback))
191 {
192 PUTBACK;
193 call_sv (req->callback, G_VOID | G_EVAL);
194 SPAGAIN;
195
196 if (SvTRUE (ERRSV))
197 {
198 free_req (req);
199 croak (0);
200 }
201 }
202
203 LEAVE;
204
205 errno = errorno;
206 count++;
207 }
208
209 free_req (req);
210 }
211
212 return count;
213}
214
215static void *aio_proc(void *arg);
216
217static void
218start_thread (void)
219{
220 sigset_t fullsigset, oldsigset;
221 pthread_t tid;
222 pthread_attr_t attr;
223
224 pthread_attr_init (&attr);
225 pthread_attr_setstacksize (&attr, STACKSIZE);
226 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
227
228 sigfillset (&fullsigset);
229 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
230
231 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
232 started++;
233
234 sigprocmask (SIG_SETMASK, &oldsigset, 0);
235}
236
237static void
238send_req (aio_req req)
239{
240 while (started < wanted && nreqs >= started)
241 start_thread ();
242
243 nreqs++;
244
245 pthread_mutex_lock (&reqlock);
246
247 req->next = 0;
248
249 if (reqe)
250 {
251 reqe->next = req;
252 reqe = req;
253 }
254 else
255 reqe = reqs = req;
256
257 pthread_cond_signal (&reqwait);
258 pthread_mutex_unlock (&reqlock);
259
260 if (nreqs > max_outstanding)
261 for (;;)
262 {
263 poll_cb ();
264
265 if (nreqs <= max_outstanding)
266 break;
267
268 poll_wait ();
269 }
270}
271
272static void
273end_thread (void)
274{
275 aio_req req;
276 Newz (0, req, 1, aio_cb);
277 req->type = REQ_QUIT;
278
279 send_req (req);
280}
281
282static void min_parallel (int nthreads)
283{
284 if (wanted < nthreads)
285 wanted = nthreads;
286}
287
288static void max_parallel (int nthreads)
289{
290 int cur = started;
291
292 if (wanted > nthreads)
293 wanted = nthreads;
294
295 while (cur > wanted)
296 {
297 end_thread ();
298 cur--;
299 }
300
301 while (started > wanted)
302 {
303 poll_wait ();
304 poll_cb ();
305 }
306}
307
308static void create_pipe ()
309{
310 if (pipe (respipe))
311 croak ("unable to initialize result pipe");
312
313 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
314 croak ("cannot set result pipe to nonblocking mode");
315
316 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
317 croak ("cannot set result pipe to nonblocking mode");
318}
319
320static void atfork_prepare (void)
321{
322 pthread_mutex_lock (&reqlock);
323 pthread_mutex_lock (&reslock);
324}
325
326static void atfork_parent (void)
327{
328 pthread_mutex_unlock (&reslock);
329 pthread_mutex_unlock (&reqlock);
330}
331
332static void atfork_child (void)
333{
334 aio_req prv;
335
336 started = 0;
337
338 while (reqs)
339 {
340 prv = reqs;
341 reqs = prv->next;
342 free_req (prv);
343 }
344
345 reqs = reqe = 0;
346
347 while (ress)
348 {
349 prv = ress;
350 ress = prv->next;
351 free_req (prv);
352 }
353
354 ress = rese = 0;
355
356 close (respipe [0]);
357 close (respipe [1]);
358 create_pipe ();
359
360 atfork_parent ();
361}
362
363/*****************************************************************************/
364/* work around various missing functions */
365
366#if !HAVE_PREADWRITE
367# define pread aio_pread
368# define pwrite aio_pwrite
369
370/*
371 * make our pread/pwrite safe against themselves, but not against
372 * normal read/write by using a mutex. slows down execution a lot,
373 * but that's your problem, not mine.
374 */
375static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
376
377static ssize_t
378pread (int fd, void *buf, size_t count, off_t offset)
379{
380 ssize_t res;
381 off_t ooffset;
382
383 pthread_mutex_lock (&iolock);
384 ooffset = lseek (fd, 0, SEEK_CUR);
385 lseek (fd, offset, SEEK_SET);
386 res = read (fd, buf, count);
387 lseek (fd, ooffset, SEEK_SET);
388 pthread_mutex_unlock (&iolock);
389
390 return res;
391}
392
393static ssize_t
394pwrite (int fd, void *buf, size_t count, off_t offset)
395{
396 ssize_t res;
397 off_t ooffset;
398
399 pthread_mutex_lock (&iolock);
400 ooffset = lseek (fd, 0, SEEK_CUR);
401 lseek (fd, offset, SEEK_SET);
402 res = write (fd, buf, count);
403 lseek (fd, offset, SEEK_SET);
404 pthread_mutex_unlock (&iolock);
405
406 return res;
407}
408#endif
409
410#if !HAVE_FDATASYNC
411# define fdatasync fsync
412#endif
413
414#if !HAVE_READAHEAD
415# define readahead aio_readahead
416
417static char readahead_buf[4096];
418
419static ssize_t
420readahead (int fd, off_t offset, size_t count)
421{
422 while (count > 0)
423 {
424 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
425
426 pread (fd, readahead_buf, len, offset);
427 offset += len;
428 count -= len;
429 }
430
431 errno = 0;
432}
433#endif
434
435/* sendfile always needs emulation */
436static ssize_t
437sendfile_ (int ofd, int ifd, off_t offset, size_t count)
438{
439 ssize_t res;
440
441 if (!count)
442 return 0;
443
444#if __linux
445 res = sendfile (ofd, ifd, &offset, count);
446
447#elif __freebsd
448 /*
449 * Of course, the freebsd sendfile is a dire hack with no thoughts
450 * wasted on making it similar to other i/o functions.
451 */
452 {
453 off_t sbytes;
454 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
455
456 if (!res && errno == EAGAIN)
457 /* maybe on others, too, as usual, the manpage leaves you guessing */
458 res = sbytes;
459 }
460
461#elif __hpux
462 res = sendfile (ofd, ifd, offset, count, 0, 0);
463
464#else
465 res = -1;
466 errno = ENOSYS;
467#endif
468
469 if (res < 0 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK))
470 {
471 /* emulate sendfile. this is a major pain in the ass */
472 char *buf = malloc (4096);
473 res = 0;
474
475 for (;;)
476 {
477 ssize_t cnt;
478
479 cnt = pread (ifd, buf, 4096, offset);
480
481 if (cnt <= 0)
482 {
483 if (cnt && !res) res = -1;
484 break;
485 }
486
487 cnt = write (ofd, buf, cnt);
488
489 if (cnt <= 0)
490 {
491 if (cnt && !res) res = -1;
492 break;
493 }
494
495 offset += cnt;
496 res += cnt;
497 }
498
499 {
500 int errorno = errno;
501 free (buf);
502 errno = errorno;
503 }
504 }
505
506 return res;
507}
508
509/*****************************************************************************/
510
511static void *
512aio_proc (void *thr_arg)
513{
514 aio_req req;
515 int type;
516
517 do
518 {
519 pthread_mutex_lock (&reqlock);
520
521 for (;;)
522 {
523 req = reqs;
524
525 if (reqs)
526 {
527 reqs = reqs->next;
528 if (!reqs) reqe = 0;
529 }
530
531 if (req)
532 break;
533
534 pthread_cond_wait (&reqwait, &reqlock);
535 }
536
537 pthread_mutex_unlock (&reqlock);
538
539 errno = 0; /* strictly unnecessary */
540
541 type = req->type;
542
543 switch (type)
544 {
545 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
546 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
547
548 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
549 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
550
551 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
552 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
553 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
554
555 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
556 case REQ_CLOSE: req->result = close (req->fd); break;
557 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
558 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
559 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
560
561 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
562 case REQ_FSYNC: req->result = fsync (req->fd); break;
563
564 case REQ_QUIT:
565 break;
566
567 default:
568 req->result = ENOSYS;
569 break;
570 }
571
572 req->errorno = errno;
573
574 pthread_mutex_lock (&reslock);
575
576 req->next = 0;
577
578 if (rese)
579 {
580 rese->next = req;
581 rese = req;
582 } 429 }
583 else 430 else
584 { 431 {
585 rese = ress = req; 432 sv_result = newSViv (req->result);
586 433 SvREADONLY_on (sv_result);
587 /* write a dummy byte to the pipe so fh becomes ready */
588 write (respipe [1], &respipe, 1);
589 } 434 }
590 435
591 pthread_mutex_unlock (&reslock); 436 switch (req->type)
437 {
438 case EIO_WD_OPEN:
439 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
440 break;
441
442 case EIO_READDIR:
443 {
444 SV *rv = &PL_sv_undef;
445
446 if (req->result >= 0)
447 {
448 int i;
449 char *names = (char *)req->ptr2;
450 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
451 AV *av = newAV ();
452
453 av_extend (av, req->result - 1);
454
455 for (i = 0; i < req->result; ++i)
456 {
457 if (req->int1 & EIO_READDIR_DENTS)
458 {
459 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
460
461 if (req->int1 & EIO_READDIR_CUSTOM2)
462 {
463 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
464 AV *avent = newAV ();
465
466 av_extend (avent, 2);
467
468 if (!sv_type [ent->type])
469 {
470 sv_type [ent->type] = newSViv (ent->type);
471 SvREADONLY_on (sv_type [ent->type]);
472 }
473
474 av_store (avent, 0, namesv);
475 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
476 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
477
478 av_store (av, i, newRV_noinc ((SV *)avent));
479 }
480 else
481 av_store (av, i, namesv);
482
483 ++ent;
484 }
485 else
486 {
487 SV *name = newSVpv (names, 0);
488 av_store (av, i, name);
489 names += SvCUR (name) + 1;
490 }
491 }
492
493 rv = sv_2mortal (newRV_noinc ((SV *)av));
494 }
495
496 PUSHs (rv);
497
498 if (req->int1 & EIO_READDIR_CUSTOM1)
499 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
500 }
501 break;
502
503 case EIO_OPEN:
504 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
505 break;
506
507 case EIO_STATVFS:
508 case EIO_FSTATVFS:
509 {
510 SV *rv = &PL_sv_undef;
511
512#ifndef _WIN32
513 if (req->result >= 0)
514 {
515 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
516 HV *hv = newHV ();
517 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
518 * chooses to make it a struct.
519 */
520 unsigned long fsid = 0;
521 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
522
523 rv = sv_2mortal (newRV_noinc ((SV *)hv));
524
525 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
526 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
527 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
528 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
529 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
530 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
531 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
532 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
533 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
534 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
535 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
536 }
537#endif
538
539 PUSHs (rv);
540 }
541
542 break;
543
544 case EIO_GROUP:
545 req->int1 = 2; /* mark group as finished */
546
547 if (req->sv1)
548 {
549 int i;
550 AV *av = (AV *)req->sv1;
551
552 EXTEND (SP, AvFILL (av) + 1);
553 for (i = 0; i <= AvFILL (av); ++i)
554 PUSHs (*av_fetch (av, i, 0));
555 }
556 break;
557
558 case EIO_NOP:
559 case EIO_BUSY:
560 break;
561
562 case EIO_READLINK:
563 case EIO_REALPATH:
564 if (req->result > 0)
565 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
566 break;
567
568 case EIO_STAT:
569 case EIO_LSTAT:
570 case EIO_FSTAT:
571 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
572
573 if (!(PL_laststatval = req->result))
574 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
575 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
576
577 PUSHs (sv_result);
578 break;
579
580 case EIO_SEEK:
581 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
582 break;
583
584 case EIO_READ:
585 {
586 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
587 *SvEND (req->sv2) = 0;
588 SvPOK_only (req->sv2);
589 SvSETMAGIC (req->sv2);
590 PUSHs (sv_result);
591 }
592 break;
593
594 case EIO_CUSTOM:
595 if (req->feed == fiemap)
596 {
597#if HAVE_FIEMAP
598 if (!req->result)
599 {
600 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
601
602 if (fiemap->fm_extent_count)
603 {
604 AV *av = newAV ();
605 int i;
606
607 while (fiemap->fm_mapped_extents)
608 {
609 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
610 AV *ext_av = newAV ();
611
612 av_store (ext_av, 3, newSVuv (extent->fe_flags));
613 av_store (ext_av, 2, newSVval64 (extent->fe_length));
614 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
615 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
616
617 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
618 }
619
620 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
621 }
622 else
623 {
624 SvIV_set (sv_result, fiemap->fm_mapped_extents);
625 PUSHs (sv_result);
626 }
627 }
628#endif
629 }
630 else
631 PUSHs (sv_result);
632 break;
633
634 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
635 if (req->result > 0)
636 SvIV_set (sv_result, 0);
637 /* FALLTHROUGH */
638
639 default:
640 PUSHs (sv_result);
641 break;
642 }
643
644 errno = req->errorno;
645
646 PUTBACK;
647 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
648 SPAGAIN;
649
650 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
651 SvREFCNT_dec (sv_result);
652 else
653 sv_result_cache = sv_result;
654
655 FREETMPS;
656 LEAVE;
657
658 PUTBACK;
592 } 659 }
593 while (type != REQ_QUIT); 660
661 return !!SvTRUE (ERRSV);
662}
663
664static void
665req_destroy (aio_req req)
666{
667 if (req->self)
668 {
669 sv_unmagic (req->self, PERL_MAGIC_ext);
670 SvREFCNT_dec (req->self);
671 }
672
673 SvREFCNT_dec (req->sv1);
674 SvREFCNT_dec (req->sv2);
675 SvREFCNT_dec (req->sv3);
676 SvREFCNT_dec (req->sv4);
677 SvREFCNT_dec (req->callback);
678
679 free (req);
680}
681
682static void
683req_cancel_subs (aio_req grp)
684{
685 if (grp->type != EIO_GROUP)
686 return;
687
688 SvREFCNT_dec (grp->sv2);
689 grp->sv2 = 0;
690
691 eio_grp_cancel (grp);
692}
693
694static void ecb_cold
695create_respipe (void)
696{
697 if (s_epipe_renew (&respipe))
698 croak ("IO::AIO: unable to initialize result pipe");
699}
700
701static void
702poll_wait (void)
703{
704 while (eio_nreqs ())
705 {
706 int size;
707
708 X_LOCK (reslock);
709 size = res_queue.size;
710 X_UNLOCK (reslock);
711
712 if (size)
713 return;
714
715 etp_maybe_start_thread ();
716
717 s_epipe_wait (&respipe);
718 }
719}
720
721static int
722poll_cb (void)
723{
724 for (;;)
725 {
726 int res = eio_poll ();
727
728 if (res > 0)
729 croak (0);
730
731 if (!max_outstanding || max_outstanding > eio_nreqs ())
732 return res;
733
734 poll_wait ();
735 }
736}
737
738static void ecb_cold
739reinit (void)
740{
741 create_respipe ();
742
743 if (eio_init (want_poll, done_poll) < 0)
744 croak ("IO::AIO: unable to initialise eio library");
745}
746
747/*****************************************************************************/
748
749#if !_POSIX_MAPPED_FILES
750# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
751# define munmap(addr,length) EIO_ENOSYS ()
752#endif
753
754#if !_POSIX_MEMORY_PROTECTION
755# define mprotect(addr,len,prot) EIO_ENOSYS ()
756# define PROT_NONE 0
757# define PROT_WRITE 0
758# define MAP_PRIVATE 0
759# define MAP_SHARED 0
760# define MAP_FIXED 0
761#endif
762
763#define MMAP_MAGIC PERL_MAGIC_ext
764
765static int ecb_cold
766mmap_free (pTHX_ SV *sv, MAGIC *mg)
767{
768 int old_errno = errno;
769 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
770 errno = old_errno;
771
772 mg->mg_obj = 0; /* just in case */
773
774 SvREADONLY_off (sv);
775
776 if (SvPVX (sv) != mg->mg_ptr)
777 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
778
779 SvCUR_set (sv, 0);
780 SvPVX (sv) = 0;
781 SvOK_off (sv);
594 782
595 return 0; 783 return 0;
596} 784}
597 785
786static MGVTBL mmap_vtbl = {
787 0, 0, 0, 0, mmap_free
788};
789
790/*****************************************************************************/
791
792static SV *
793get_cb (SV *cb_sv)
794{
795 SvGETMAGIC (cb_sv);
796 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
797}
798
799static aio_req ecb_noinline
800dreq (SV *callback)
801{
802 SV *cb_cv;
803 aio_req req;
804 int req_pri = next_pri;
805 next_pri = EIO_PRI_DEFAULT;
806
807 cb_cv = get_cb (callback);
808
809 req = calloc (sizeof (*req), 1);
810 if (!req)
811 croak ("out of memory during eio_req allocation");
812
813 req->callback = SvREFCNT_inc (cb_cv);
814 req->pri = req_pri;
815
816 return req;
817}
818
598#define dREQ \ 819#define dREQ \
599 aio_req req; \ 820 aio_req req = dreq (callback); \
821
822#define REQ_SEND \
823 PUTBACK; \
824 req_submit (req); \
825 SPAGAIN; \
600 \ 826 \
601 if (SvOK (callback) && !SvROK (callback)) \ 827 if (GIMME_V != G_VOID) \
602 croak ("clalback must be undef or of reference type"); \ 828 XPUSHs (req_sv (req, aio_req_stash));
603 \ 829
604 Newz (0, req, 1, aio_cb); \ 830ecb_inline void
605 if (!req) \ 831req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
606 croak ("out of memory during aio_req allocation"); \ 832{
607 \ 833 if (expect_false (SvROK (path)))
608 req->callback = newSVsv (callback); 834 {
609 835 SV *rv = SvRV (path);
836 SV *wdob;
837
838 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
839 {
840 path = AvARRAY (rv)[1];
841 wdob = AvARRAY (rv)[0];
842
843 if (SvOK (wdob))
844 {
845 *wd = SvAIO_WD (wdob);
846 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
847 }
848 else
849 *wd = EIO_INVALID_WD;
850 }
851 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
852 {
853 *wd = (aio_wd)(long)SvIVX (rv);
854 *wdsv = SvREFCNT_inc_NN (rv);
855 *ptr = ".";
856 return; /* path set to "." */
857 }
858 else
859 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
860 }
861
862 *pathsv = newSVsv (path);
863 *ptr = SvPVbyte_nolen (*pathsv);
864}
865
866static void ecb_noinline
867req_set_path1 (aio_req req, SV *path)
868{
869 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
870}
871
872static void ecb_noinline
873req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
874{
875 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
876
877 switch (SvTYPE (rv))
878 {
879 case SVt_PVIO:
880 case SVt_PVLV:
881 case SVt_PVGV:
882 req->type = type_fh;
883 req->sv1 = newSVsv (fh_or_path);
884 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
885 break;
886
887 default:
888 req->type = type_path;
889 req_set_path1 (req, fh_or_path);
890 break;
891 }
892}
893
894XS(boot_IO__AIO) ecb_cold;
895
610MODULE = IO::AIO PACKAGE = IO::AIO 896MODULE = IO::AIO PACKAGE = IO::AIO
611 897
612PROTOTYPES: ENABLE 898PROTOTYPES: ENABLE
613 899
614BOOT: 900BOOT:
615{ 901{
616 create_pipe (); 902 static const struct {
617 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 903 const char *name;
618} 904 IV iv;
905 } *civ, const_iv[] = {
906# define const_niv(name, value) { # name, (IV) value },
907# define const_iv(name) { # name, (IV) name },
908# define const_eio(name) { # name, (IV) EIO_ ## name },
619 909
910 /* you have to re-run ./gendef0 after adding/Removing any constants here */
911
912 const_iv (ENOSYS)
913 const_iv (EXDEV)
914 const_iv (EBADR)
915
916 const_iv (O_RDONLY)
917 const_iv (O_WRONLY)
918 const_iv (O_RDWR)
919 const_iv (O_CREAT)
920 const_iv (O_TRUNC)
921 const_iv (O_EXCL)
922 const_iv (O_APPEND)
923
924 const_iv (O_ASYNC)
925 const_iv (O_DIRECT)
926 const_iv (O_NOATIME)
927
928 const_iv (O_CLOEXEC)
929 const_iv (O_NOCTTY)
930 const_iv (O_NOFOLLOW)
931 const_iv (O_NONBLOCK)
932 const_iv (O_EXEC)
933 const_iv (O_SEARCH)
934 const_iv (O_DIRECTORY)
935 const_iv (O_DSYNC)
936 const_iv (O_RSYNC)
937 const_iv (O_SYNC)
938 const_iv (O_PATH)
939 const_iv (O_TMPFILE)
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
620void 1070void
621min_parallel(nthreads) 1071reinit ()
622 int nthreads 1072 PROTOTYPE:
1073
1074void
1075max_poll_reqs (unsigned int nreqs)
623 PROTOTYPE: $ 1076 PROTOTYPE: $
1077 CODE:
1078 eio_set_max_poll_reqs (nreqs);
624 1079
625void 1080void
626max_parallel(nthreads) 1081max_poll_time (double nseconds)
627 int nthreads
628 PROTOTYPE: $ 1082 PROTOTYPE: $
629
630int
631max_outstanding(nreqs)
632 int nreqs
633 PROTOTYPE: $
634 CODE: 1083 CODE:
635 RETVAL = max_outstanding; 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:
636 max_outstanding = nreqs; 1114 max_outstanding = maxreqs;
637 1115
638void 1116void
639aio_open(pathname,flags,mode,callback=&PL_sv_undef) 1117aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
640 SV * pathname
641 int flags
642 int mode
643 SV * callback
644 PROTOTYPE: $$$;$
645 CODE: 1118 PPCODE:
646{ 1119{
647 dREQ; 1120 dREQ;
648 1121
1122 req->type = EIO_WD_OPEN;
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
649 req->type = REQ_OPEN; 1134 req->type = EIO_OPEN;
650 req->data = newSVsv (pathname); 1135 req_set_path1 (req, pathname);
651 req->dataptr = SvPVbyte_nolen (req->data);
652 req->fd = flags; 1136 req->int1 = flags;
653 req->mode = mode; 1137 req->int2 = mode;
654 1138
655 send_req (req); 1139 REQ_SEND;
656} 1140}
657 1141
658void 1142void
659aio_close(fh,callback=&PL_sv_undef) 1143aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
660 SV * fh
661 SV * callback
662 PROTOTYPE: $;$
663 ALIAS: 1144 ALIAS:
664 aio_close = REQ_CLOSE
665 aio_fsync = REQ_FSYNC 1145 aio_fsync = EIO_FSYNC
666 aio_fdatasync = REQ_FDATASYNC 1146 aio_fdatasync = EIO_FDATASYNC
1147 aio_syncfs = EIO_SYNCFS
667 CODE: 1148 PPCODE:
668{ 1149{
1150 int fd = s_fileno_croak (fh, 0);
669 dREQ; 1151 dREQ;
670 1152
671 req->type = ix; 1153 req->type = ix;
672 req->fh = newSVsv (fh); 1154 req->sv1 = newSVsv (fh);
673 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1155 req->int1 = fd;
674 1156
675 send_req (req); 1157 REQ_SEND;
676} 1158}
677 1159
678void 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
1214 )
1215 abort (); /*D*/
1216
1217 close_fd = pipefd [0];
1218 }
1219
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
679aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1245aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
680 SV * fh
681 UV offset
682 UV length
683 SV * data
684 UV dataoffset
685 SV * callback
686 ALIAS: 1246 ALIAS:
687 aio_read = REQ_READ 1247 aio_read = EIO_READ
688 aio_write = REQ_WRITE 1248 aio_write = EIO_WRITE
689 PROTOTYPE: $$$$$;$
690 CODE: 1249 PPCODE:
691{ 1250{
692 aio_req req;
693 STRLEN svlen; 1251 STRLEN svlen;
1252 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
694 char *svptr = SvPVbyte (data, svlen); 1253 char *svptr = SvPVbyte (data, svlen);
695 1254 UV len = SvUV (length);
696 SvUPGRADE (data, SVt_PV);
697 SvPOK_on (data);
698 1255
699 if (dataoffset < 0) 1256 if (dataoffset < 0)
700 dataoffset += svlen; 1257 dataoffset += svlen;
701 1258
702 if (dataoffset < 0 || dataoffset > svlen) 1259 if (dataoffset < 0 || dataoffset > svlen)
703 croak ("data offset outside of string"); 1260 croak ("dataoffset outside of data scalar");
704 1261
705 if (ix == REQ_WRITE) 1262 if (ix == EIO_WRITE)
706 { 1263 {
707 /* write: check length and adjust. */ 1264 /* write: check length and adjust. */
708 if (length < 0 || length + dataoffset > svlen) 1265 if (!SvOK (length) || len + dataoffset > svlen)
709 length = svlen - dataoffset; 1266 len = svlen - dataoffset;
710 } 1267 }
711 else 1268 else
712 { 1269 {
713 /* read: grow scalar as necessary */ 1270 /* read: check type and grow scalar as necessary */
1271 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
714 svptr = SvGROW (data, length + dataoffset); 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");
715 } 1275 }
716
717 if (length < 0)
718 croak ("length must not be negative");
719 1276
720 { 1277 {
721 dREQ; 1278 dREQ;
722 1279
723 req->type = ix; 1280 req->type = ix;
724 req->fh = newSVsv (fh); 1281 req->sv1 = newSVsv (fh);
725 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1282 req->int1 = fd;
726 : IoOFP (sv_2io (fh))); 1283 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
727 req->offset = offset; 1284 req->size = len;
728 req->length = length;
729 req->data = SvREFCNT_inc (data); 1285 req->sv2 = SvREFCNT_inc (data);
730 req->dataptr = (char *)svptr + dataoffset; 1286 req->ptr2 = (char *)svptr + dataoffset;
1287 req->stroffset = dataoffset;
731 1288
732 if (!SvREADONLY (data)) 1289 if (!SvREADONLY (data))
733 { 1290 {
734 SvREADONLY_on (data); 1291 SvREADONLY_on (data);
735 req->data2ptr = (void *)data; 1292 req->flags |= FLAG_SV2_RO_OFF;
736 } 1293 }
737 1294
738 send_req (req); 1295 REQ_SEND;
739 } 1296 }
740} 1297}
741 1298
742void 1299void
743aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1300aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
744 SV * out_fh 1301 ALIAS:
745 SV * in_fh 1302 aio_readlink = EIO_READLINK
746 UV in_offset 1303 aio_realpath = EIO_REALPATH
747 UV length
748 SV * callback
749 PROTOTYPE: $$$$;$
750 CODE: 1304 PPCODE:
751{ 1305{
1306 dREQ;
1307
1308 req->type = ix;
1309 req_set_path1 (req, pathname);
1310
1311 REQ_SEND;
1312}
1313
1314void
1315aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1316 PPCODE:
1317{
1318 int ifd = s_fileno_croak (in_fh , 0);
1319 int ofd = s_fileno_croak (out_fh, 1);
752 dREQ; 1320 dREQ;
753 1321
754 req->type = REQ_SENDFILE; 1322 req->type = EIO_SENDFILE;
755 req->fh = newSVsv (out_fh); 1323 req->sv1 = newSVsv (out_fh);
756 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1324 req->int1 = ofd;
757 req->fh2 = newSVsv (in_fh); 1325 req->sv2 = newSVsv (in_fh);
758 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1326 req->int2 = ifd;
759 req->offset = in_offset; 1327 req->offs = in_offset;
760 req->length = length; 1328 req->size = length;
761 1329
762 send_req (req); 1330 REQ_SEND;
763} 1331}
764 1332
765void 1333void
766aio_readahead(fh,offset,length,callback=&PL_sv_undef) 1334aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
767 SV * fh
768 UV offset
769 IV length
770 SV * callback
771 PROTOTYPE: $$$;$
772 CODE: 1335 PPCODE:
773{ 1336{
1337 int fd = s_fileno_croak (fh, 0);
774 dREQ; 1338 dREQ;
775 1339
776 req->type = REQ_READAHEAD; 1340 req->type = EIO_READAHEAD;
777 req->fh = newSVsv (fh); 1341 req->sv1 = newSVsv (fh);
778 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1342 req->int1 = fd;
779 req->offset = offset; 1343 req->offs = offset;
780 req->length = length; 1344 req->size = length;
781 1345
782 send_req (req); 1346 REQ_SEND;
783} 1347}
784 1348
785void 1349void
786aio_stat(fh_or_path,callback=&PL_sv_undef) 1350aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
787 SV * fh_or_path
788 SV * callback
789 ALIAS: 1351 ALIAS:
790 aio_stat = REQ_STAT 1352 aio_stat = EIO_STAT
791 aio_lstat = REQ_LSTAT 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
792 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:
793{ 1383{
794 dREQ; 1384 dREQ;
795 1385
796 New (0, req->statdata, 1, Stat_t); 1386 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
797 if (!req->statdata) 1387 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
798 { 1388 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
799 free_req (req);
800 croak ("out of memory during aio_req->statdata allocation");
801 }
802 1389
803 if (SvPOK (fh_or_path)) 1390 REQ_SEND;
804 {
805 req->type = ix;
806 req->data = newSVsv (fh_or_path);
807 req->dataptr = SvPVbyte_nolen (req->data);
808 }
809 else
810 {
811 req->type = REQ_FSTAT;
812 req->fh = newSVsv (fh_or_path);
813 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
814 }
815
816 send_req (req);
817} 1391}
818 1392
819void 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;
1435
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
820aio_unlink(pathname,callback=&PL_sv_undef) 1461aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
821 SV * pathname
822 SV * callback
823 ALIAS: 1462 ALIAS:
824 aio_unlink = REQ_UNLINK 1463 aio_unlink = EIO_UNLINK
825 aio_rmdir = REQ_RMDIR 1464 aio_rmdir = EIO_RMDIR
1465 aio_readdir = EIO_READDIR
826 CODE: 1466 PPCODE:
827{ 1467{
828 dREQ; 1468 dREQ;
829 1469
830 req->type = ix; 1470 req->type = ix;
831 req->data = newSVsv (pathname); 1471 req_set_path1 (req, pathname);
832 req->dataptr = SvPVbyte_nolen (req->data);
833
834 send_req (req);
835}
836 1472
1473 REQ_SEND;
1474}
1475
837void 1476void
838aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1477aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
839 SV * oldpath 1478 ALIAS:
840 SV * newpath 1479 aio_link = EIO_LINK
841 SV * callback 1480 aio_symlink = EIO_SYMLINK
1481 aio_rename = EIO_RENAME
842 CODE: 1482 PPCODE:
843{ 1483{
1484 eio_wd wd2 = 0;
844 dREQ; 1485 dREQ;
845 1486
846 req->type = REQ_SYMLINK; 1487 req->type = ix;
847 req->fh = newSVsv (oldpath); 1488 req_set_path1 (req, oldpath);
848 req->data2ptr = SvPVbyte_nolen (req->fh); 1489 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
849 req->data = newSVsv (newpath); 1490 req->int3 = (long)wd2;
850 req->dataptr = SvPVbyte_nolen (req->data);
851 1491
852 send_req (req); 1492 REQ_SEND;
853} 1493}
854 1494
855void 1495void
856flush() 1496aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
857 PROTOTYPE: 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;
1645}
1646
1647int
1648aioreq_pri (int pri = NO_INIT)
858 CODE: 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:
859 while (nreqs) 1671 while (eio_nreqs ())
860 { 1672 {
861 poll_wait (); 1673 poll_wait ();
862 poll_cb (); 1674 poll_cb ();
863 } 1675 }
864 1676
865void 1677int
866poll() 1678poll ()
867 PROTOTYPE:
868 CODE: 1679 CODE:
869 if (nreqs)
870 {
871 poll_wait (); 1680 poll_wait ();
872 poll_cb (); 1681 RETVAL = poll_cb ();
873 }
874
875int
876poll_fileno()
877 PROTOTYPE:
878 CODE:
879 RETVAL = respipe [0];
880 OUTPUT: 1682 OUTPUT:
881 RETVAL 1683 RETVAL
882 1684
883int 1685int
1686poll_fileno ()
1687 CODE:
1688 RETVAL = s_epipe_fd (&respipe);
1689 OUTPUT:
1690 RETVAL
1691
1692int
884poll_cb(...) 1693poll_cb (...)
885 PROTOTYPE: 1694 PROTOTYPE:
886 CODE: 1695 CODE:
887 RETVAL = poll_cb (); 1696 RETVAL = poll_cb ();
888 OUTPUT: 1697 OUTPUT:
889 RETVAL 1698 RETVAL
890 1699
891void 1700void
892poll_wait() 1701poll_wait ()
893 PROTOTYPE:
894 CODE: 1702 CODE:
895 if (nreqs)
896 poll_wait (); 1703 poll_wait ();
897 1704
898int 1705int
899nreqs() 1706nreqs ()
900 PROTOTYPE:
901 CODE: 1707 CODE:
902 RETVAL = nreqs; 1708 RETVAL = eio_nreqs ();
903 OUTPUT: 1709 OUTPUT:
904 RETVAL 1710 RETVAL
905 1711
1712int
1713nready ()
1714 CODE:
1715 RETVAL = eio_nready ();
1716 OUTPUT:
1717 RETVAL
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
1900pipe2 (int flags = 0)
1901 PROTOTYPE: ;$
1902 PPCODE:
1903{
1904 int fd[2];
1905 int res;
1906
1907 if (flags)
1908#if HAVE_PIPE2
1909 res = pipe2 (fd, flags);
1910#else
1911 res = (errno = ENOSYS, -1);
1912#endif
1913 else
1914 res = pipe (fd);
1915
1916 if (!res)
1917 {
1918 EXTEND (SP, 2);
1919 PUSHs (newmortalFH (fd[0], O_RDONLY));
1920 PUSHs (newmortalFH (fd[1], O_WRONLY));
1921 }
1922}
1923
1924void _on_next_submit (SV *cb)
1925 CODE:
1926 SvREFCNT_dec (on_next_submit);
1927 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1928
1929PROTOTYPES: DISABLE
1930
1931MODULE = IO::AIO PACKAGE = IO::AIO::WD
1932
1933BOOT:
1934{
1935 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1936 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1937}
1938
1939void
1940DESTROY (SV *self)
1941 CODE:
1942{
1943 aio_wd wd = SvAIO_WD (self);
1944#if HAVE_AT
1945 {
1946 SV *callback = &PL_sv_undef;
1947 dREQ; /* clobbers next_pri :/ */
1948 next_pri = req->pri; /* restore next_pri */
1949 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1950 req->type = EIO_WD_CLOSE;
1951 req->wd = wd;
1952 REQ_SEND;
1953 }
1954#else
1955 eio_wd_close_sync (wd);
1956#endif
1957}
1958
1959MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1960
1961void
1962cancel (aio_req_ornot req)
1963 CODE:
1964 eio_cancel (req);
1965
1966void
1967cb (aio_req_ornot req, SV *callback = NO_INIT)
1968 PPCODE:
1969{
1970 if (GIMME_V != G_VOID)
1971 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1972
1973 if (items > 1)
1974 {
1975 SV *cb_cv = get_cb (callback);
1976
1977 SvREFCNT_dec (req->callback);
1978 req->callback = SvREFCNT_inc (cb_cv);
1979 }
1980}
1981
1982MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1983
1984void
1985add (aio_req grp, ...)
1986 PPCODE:
1987{
1988 int i;
1989
1990 if (grp->int1 == 2)
1991 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1992
1993 for (i = 1; i < items; ++i )
1994 {
1995 aio_req req;
1996
1997 if (GIMME_V != G_VOID)
1998 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1999
2000 req = SvAIO_REQ (ST (i));
2001
2002 if (req)
2003 eio_grp_add (grp, req);
2004 }
2005}
2006
2007void
2008cancel_subs (aio_req_ornot req)
2009 CODE:
2010 req_cancel_subs (req);
2011
2012void
2013result (aio_req grp, ...)
2014 CODE:
2015{
2016 int i;
2017 AV *av;
2018
2019 grp->errorno = errno;
2020
2021 av = newAV ();
2022 av_extend (av, items - 1);
2023
2024 for (i = 1; i < items; ++i )
2025 av_push (av, newSVsv (ST (i)));
2026
2027 SvREFCNT_dec (grp->sv1);
2028 grp->sv1 = (SV *)av;
2029}
2030
2031void
2032errno (aio_req grp, int errorno = errno)
2033 CODE:
2034 grp->errorno = errorno;
2035
2036void
2037limit (aio_req grp, int limit)
2038 CODE:
2039 eio_grp_limit (grp, limit);
2040
2041void
2042feed (aio_req grp, SV *callback = &PL_sv_undef)
2043 CODE:
2044{
2045 SvREFCNT_dec (grp->sv2);
2046 grp->sv2 = newSVsv (callback);
2047 grp->feed = aio_grp_feed;
2048
2049 if (grp->int2 <= 0)
2050 grp->int2 = 2;
2051
2052 eio_grp_limit (grp, grp->int2);
2053}
2054

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