1 |
root |
1.14 |
/* |
2 |
|
|
* libeio implementation |
3 |
|
|
* |
4 |
root |
1.155 |
* Copyright (c) 2007,2008,2009,2010,2011,2012,2013,2016,2017,2018 Marc Alexander Lehmann <libeio@schmorp.de> |
5 |
root |
1.14 |
* All rights reserved. |
6 |
|
|
* |
7 |
|
|
* Redistribution and use in source and binary forms, with or without modifica- |
8 |
|
|
* tion, are permitted provided that the following conditions are met: |
9 |
root |
1.125 |
* |
10 |
root |
1.14 |
* 1. Redistributions of source code must retain the above copyright notice, |
11 |
|
|
* this list of conditions and the following disclaimer. |
12 |
root |
1.125 |
* |
13 |
root |
1.14 |
* 2. Redistributions in binary form must reproduce the above copyright |
14 |
|
|
* notice, this list of conditions and the following disclaimer in the |
15 |
|
|
* documentation and/or other materials provided with the distribution. |
16 |
root |
1.125 |
* |
17 |
root |
1.14 |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 |
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 |
|
|
* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 |
|
|
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 |
|
|
* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
22 |
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
23 |
|
|
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
24 |
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
25 |
|
|
* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
26 |
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE. |
27 |
|
|
* |
28 |
|
|
* Alternatively, the contents of this file may be used under the terms of |
29 |
|
|
* the GNU General Public License ("GPL") version 2 or any later version, |
30 |
|
|
* in which case the provisions of the GPL are applicable instead of |
31 |
|
|
* the above. If you wish to allow the use of your version of this file |
32 |
|
|
* only under the terms of the GPL and not to allow others to use your |
33 |
|
|
* version of this file under the BSD license, indicate your decision |
34 |
|
|
* by deleting the provisions above and replace them with the notice |
35 |
|
|
* and other provisions required by the GPL. If you do not delete the |
36 |
|
|
* provisions above, a recipient may use your version of this file under |
37 |
|
|
* either the BSD or the GPL. |
38 |
|
|
*/ |
39 |
|
|
|
40 |
root |
1.65 |
#ifndef _WIN32 |
41 |
|
|
# include "config.h" |
42 |
|
|
#endif |
43 |
|
|
|
44 |
root |
1.1 |
#include "eio.h" |
45 |
root |
1.72 |
#include "ecb.h" |
46 |
root |
1.29 |
|
47 |
root |
1.1 |
#include <errno.h> |
48 |
|
|
#include <stddef.h> |
49 |
|
|
#include <stdlib.h> |
50 |
root |
1.3 |
#include <string.h> |
51 |
root |
1.1 |
#include <errno.h> |
52 |
|
|
#include <sys/types.h> |
53 |
|
|
#include <sys/stat.h> |
54 |
|
|
#include <limits.h> |
55 |
|
|
#include <fcntl.h> |
56 |
root |
1.8 |
#include <assert.h> |
57 |
root |
1.1 |
|
58 |
root |
1.66 |
/* intptr_t comes from unistd.h, says POSIX/UNIX/tradition */ |
59 |
root |
1.80 |
/* intptr_t only comes from stdint.h, says idiot openbsd coder */ |
60 |
root |
1.66 |
#if HAVE_STDINT_H |
61 |
|
|
# include <stdint.h> |
62 |
|
|
#endif |
63 |
|
|
|
64 |
root |
1.80 |
#ifndef ECANCELED |
65 |
|
|
# define ECANCELED EDOM |
66 |
|
|
#endif |
67 |
root |
1.90 |
#ifndef ELOOP |
68 |
|
|
# define ELOOP EDOM |
69 |
|
|
#endif |
70 |
root |
1.80 |
|
71 |
root |
1.95 |
#if !defined(ENOTSOCK) && defined(WSAENOTSOCK) |
72 |
|
|
# define ENOTSOCK WSAENOTSOCK |
73 |
|
|
#endif |
74 |
|
|
|
75 |
root |
1.80 |
static void eio_destroy (eio_req *req); |
76 |
|
|
|
77 |
root |
1.1 |
#ifndef EIO_FINISH |
78 |
|
|
# define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 |
79 |
|
|
#endif |
80 |
|
|
|
81 |
|
|
#ifndef EIO_DESTROY |
82 |
|
|
# define EIO_DESTROY(req) do { if ((req)->destroy) (req)->destroy (req); } while (0) |
83 |
|
|
#endif |
84 |
|
|
|
85 |
|
|
#ifndef EIO_FEED |
86 |
|
|
# define EIO_FEED(req) do { if ((req)->feed ) (req)->feed (req); } while (0) |
87 |
|
|
#endif |
88 |
|
|
|
89 |
root |
1.86 |
#ifndef EIO_FD_TO_WIN32_HANDLE |
90 |
|
|
# define EIO_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
91 |
|
|
#endif |
92 |
|
|
#ifndef EIO_WIN32_HANDLE_TO_FD |
93 |
|
|
# define EIO_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
94 |
|
|
#endif |
95 |
|
|
|
96 |
|
|
#define EIO_ERRNO(errval,retval) ((errno = errval), retval) |
97 |
|
|
|
98 |
|
|
#define EIO_ENOSYS() EIO_ERRNO (ENOSYS, -1) |
99 |
|
|
|
100 |
root |
1.1 |
#ifdef _WIN32 |
101 |
|
|
|
102 |
root |
1.90 |
#undef PAGESIZE |
103 |
root |
1.86 |
#define PAGESIZE 4096 /* GetSystemInfo? */ |
104 |
|
|
|
105 |
root |
1.100 |
/* TODO: look at how perl does stat (non-sloppy), unlink (ro-files), utime, link */ |
106 |
|
|
|
107 |
root |
1.87 |
#ifdef EIO_STRUCT_STATI64 |
108 |
root |
1.100 |
/* look at perl's non-sloppy stat */ |
109 |
root |
1.87 |
#define stat(path,buf) _stati64 (path,buf) |
110 |
root |
1.95 |
#define fstat(fd,buf) _fstati64 (fd,buf) |
111 |
root |
1.87 |
#endif |
112 |
root |
1.86 |
#define lstat(path,buf) stat (path,buf) |
113 |
root |
1.90 |
#define fsync(fd) (FlushFileBuffers ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd)) ? 0 : EIO_ERRNO (EBADF, -1)) |
114 |
root |
1.86 |
#define mkdir(path,mode) _mkdir (path) |
115 |
|
|
#define link(old,neu) (CreateHardLink (neu, old, 0) ? 0 : EIO_ERRNO (ENOENT, -1)) |
116 |
|
|
|
117 |
root |
1.90 |
#define chmod(path,mode) _chmod (path, mode) |
118 |
root |
1.91 |
#define dup(fd) _dup (fd) |
119 |
|
|
#define dup2(fd1,fd2) _dup2 (fd1, fd2) |
120 |
root |
1.133 |
#define pipe(fds) _pipe (fds, 4096, O_BINARY) |
121 |
root |
1.91 |
|
122 |
root |
1.141 |
#define fcntl(fd,cmd,arg) EIO_ENOSYS () |
123 |
|
|
#define ioctl(fd,cmd,arg) EIO_ENOSYS () |
124 |
root |
1.90 |
#define fchmod(fd,mode) EIO_ENOSYS () |
125 |
root |
1.86 |
#define chown(path,uid,gid) EIO_ENOSYS () |
126 |
|
|
#define fchown(fd,uid,gid) EIO_ENOSYS () |
127 |
|
|
#define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */ |
128 |
|
|
#define ftruncate(fd,offs) EIO_ENOSYS () /* near-miss: SetEndOfFile */ |
129 |
|
|
#define mknod(path,mode,dev) EIO_ENOSYS () |
130 |
|
|
#define sync() EIO_ENOSYS () |
131 |
root |
1.90 |
#define readlink(path,buf,s) EIO_ENOSYS () |
132 |
|
|
#define statvfs(path,buf) EIO_ENOSYS () |
133 |
|
|
#define fstatvfs(fd,buf) EIO_ENOSYS () |
134 |
root |
1.86 |
|
135 |
root |
1.122 |
#define pread(fd,buf,count,offset) eio__pread (fd, buf, count, offset) |
136 |
|
|
#define pwrite(fd,buf,count,offset) eio__pwrite (fd, buf, count, offset) |
137 |
|
|
|
138 |
|
|
#if __GNUC__ |
139 |
|
|
typedef long long eio_off_t; /* signed for compatibility to msvc */ |
140 |
|
|
#else |
141 |
|
|
typedef __int64 eio_off_t; /* unsigned not supported by msvc */ |
142 |
|
|
#endif |
143 |
|
|
|
144 |
|
|
static eio_ssize_t |
145 |
|
|
eio__pread (int fd, void *buf, eio_ssize_t count, eio_off_t offset) |
146 |
|
|
{ |
147 |
|
|
OVERLAPPED o = { 0 }; |
148 |
|
|
DWORD got; |
149 |
|
|
|
150 |
|
|
o.Offset = offset; |
151 |
|
|
o.OffsetHigh = offset >> 32; |
152 |
|
|
|
153 |
|
|
return ReadFile ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd), buf, count, &got, &o) |
154 |
|
|
? got : -1; |
155 |
|
|
} |
156 |
|
|
|
157 |
|
|
static eio_ssize_t |
158 |
|
|
eio__pwrite (int fd, void *buf, eio_ssize_t count, eio_off_t offset) |
159 |
|
|
{ |
160 |
|
|
OVERLAPPED o = { 0 }; |
161 |
|
|
DWORD got; |
162 |
|
|
|
163 |
|
|
o.Offset = offset; |
164 |
|
|
o.OffsetHigh = offset >> 32; |
165 |
|
|
|
166 |
|
|
return WriteFile ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd), buf, count, &got, &o) |
167 |
|
|
? got : -1; |
168 |
|
|
} |
169 |
|
|
|
170 |
root |
1.99 |
/* rename() uses MoveFile, which fails to overwrite */ |
171 |
|
|
#define rename(old,neu) eio__rename (old, neu) |
172 |
|
|
|
173 |
|
|
static int |
174 |
|
|
eio__rename (const char *old, const char *neu) |
175 |
|
|
{ |
176 |
|
|
if (MoveFileEx (old, neu, MOVEFILE_REPLACE_EXISTING)) |
177 |
|
|
return 0; |
178 |
|
|
|
179 |
|
|
/* should steal _dosmaperr */ |
180 |
|
|
switch (GetLastError ()) |
181 |
|
|
{ |
182 |
|
|
case ERROR_FILE_NOT_FOUND: |
183 |
|
|
case ERROR_PATH_NOT_FOUND: |
184 |
|
|
case ERROR_INVALID_DRIVE: |
185 |
|
|
case ERROR_NO_MORE_FILES: |
186 |
|
|
case ERROR_BAD_NETPATH: |
187 |
|
|
case ERROR_BAD_NET_NAME: |
188 |
|
|
case ERROR_BAD_PATHNAME: |
189 |
|
|
case ERROR_FILENAME_EXCED_RANGE: |
190 |
|
|
errno = ENOENT; |
191 |
|
|
break; |
192 |
|
|
|
193 |
|
|
default: |
194 |
|
|
errno = EACCES; |
195 |
|
|
break; |
196 |
|
|
} |
197 |
|
|
|
198 |
|
|
return -1; |
199 |
|
|
} |
200 |
|
|
|
201 |
root |
1.86 |
/* we could even stat and see if it exists */ |
202 |
|
|
static int |
203 |
|
|
symlink (const char *old, const char *neu) |
204 |
|
|
{ |
205 |
root |
1.90 |
#if WINVER >= 0x0600 |
206 |
root |
1.143 |
int flags; |
207 |
root |
1.86 |
|
208 |
root |
1.143 |
/* This tries out all combinations of SYMBOLIC_LINK_FLAG_DIRECTORY |
209 |
|
|
* and SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE, |
210 |
|
|
* with directory first. |
211 |
|
|
*/ |
212 |
|
|
for (flags = 3; flags >= 0; --flags) |
213 |
|
|
if (CreateSymbolicLink (neu, old, flags)) |
214 |
|
|
return 0; |
215 |
root |
1.90 |
#endif |
216 |
root |
1.86 |
|
217 |
|
|
return EIO_ERRNO (ENOENT, -1); |
218 |
|
|
} |
219 |
|
|
|
220 |
root |
1.129 |
/* POSIX API only, causing trouble for win32 apps */ |
221 |
|
|
#define CreateHardLink(neu,old,flags) 0 /* not really creating hardlink, still using relative paths? */ |
222 |
|
|
#define CreateSymbolicLink(neu,old,flags) 0 /* vista+ only */ |
223 |
root |
1.90 |
|
224 |
|
|
struct statvfs |
225 |
|
|
{ |
226 |
|
|
int dummy; |
227 |
|
|
}; |
228 |
|
|
|
229 |
root |
1.91 |
#define DT_DIR EIO_DT_DIR |
230 |
|
|
#define DT_REG EIO_DT_REG |
231 |
|
|
#define D_NAME(entp) entp.cFileName |
232 |
|
|
#define D_TYPE(entp) (entp.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? DT_DIR : DT_REG) |
233 |
|
|
|
234 |
root |
1.1 |
#else |
235 |
|
|
|
236 |
root |
1.145 |
#include <sys/ioctl.h> |
237 |
root |
1.86 |
#include <sys/time.h> |
238 |
|
|
#include <sys/select.h> |
239 |
|
|
#include <unistd.h> |
240 |
|
|
#include <signal.h> |
241 |
|
|
#include <dirent.h> |
242 |
|
|
|
243 |
root |
1.128 |
#ifdef ANDROID |
244 |
root |
1.127 |
#include <sys/vfs.h> |
245 |
|
|
#define statvfs statfs |
246 |
|
|
#define fstatvfs fstatfs |
247 |
|
|
#include <asm/page.h> /* supposedly limits.h does #define PAGESIZE PAGESIZE */ |
248 |
|
|
#else |
249 |
|
|
#include <sys/statvfs.h> |
250 |
|
|
#endif |
251 |
|
|
|
252 |
root |
1.86 |
#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES |
253 |
|
|
#include <sys/mman.h> |
254 |
|
|
#endif |
255 |
|
|
|
256 |
root |
1.91 |
#define D_NAME(entp) entp->d_name |
257 |
|
|
|
258 |
root |
1.86 |
/* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
259 |
root |
1.118 |
#if __FreeBSD__ || __NetBSD__ || __OpenBSD__ |
260 |
root |
1.86 |
#define _DIRENT_HAVE_D_TYPE /* sigh */ |
261 |
|
|
#define D_INO(de) (de)->d_fileno |
262 |
|
|
#define D_NAMLEN(de) (de)->d_namlen |
263 |
|
|
#elif __linux || defined d_ino || _XOPEN_SOURCE >= 600 |
264 |
|
|
#define D_INO(de) (de)->d_ino |
265 |
|
|
#endif |
266 |
root |
1.31 |
|
267 |
root |
1.86 |
#ifdef _D_EXACT_NAMLEN |
268 |
|
|
#undef D_NAMLEN |
269 |
|
|
#define D_NAMLEN(de) _D_EXACT_NAMLEN (de) |
270 |
|
|
#endif |
271 |
root |
1.33 |
|
272 |
root |
1.86 |
#ifdef _DIRENT_HAVE_D_TYPE |
273 |
|
|
#define D_TYPE(de) (de)->d_type |
274 |
|
|
#endif |
275 |
root |
1.31 |
|
276 |
root |
1.86 |
#ifndef EIO_STRUCT_DIRENT |
277 |
|
|
#define EIO_STRUCT_DIRENT struct dirent |
278 |
|
|
#endif |
279 |
root |
1.1 |
|
280 |
|
|
#endif |
281 |
|
|
|
282 |
root |
1.96 |
#if HAVE_UTIMES |
283 |
|
|
# include <utime.h> |
284 |
|
|
#endif |
285 |
|
|
|
286 |
root |
1.98 |
#if HAVE_SYS_SYSCALL_H |
287 |
|
|
# include <sys/syscall.h> |
288 |
|
|
#endif |
289 |
|
|
|
290 |
root |
1.1 |
#if HAVE_SENDFILE |
291 |
|
|
# if __linux |
292 |
|
|
# include <sys/sendfile.h> |
293 |
root |
1.50 |
# elif __FreeBSD__ || defined __APPLE__ |
294 |
root |
1.1 |
# include <sys/socket.h> |
295 |
|
|
# include <sys/uio.h> |
296 |
|
|
# elif __hpux |
297 |
|
|
# include <sys/socket.h> |
298 |
root |
1.45 |
# elif __solaris |
299 |
root |
1.1 |
# include <sys/sendfile.h> |
300 |
|
|
# else |
301 |
|
|
# error sendfile support requested but not available |
302 |
|
|
# endif |
303 |
|
|
#endif |
304 |
|
|
|
305 |
root |
1.145 |
#if HAVE_RENAMEAT2 |
306 |
|
|
# include <sys/syscall.h> |
307 |
|
|
# include <linux/fs.h> |
308 |
|
|
#endif |
309 |
|
|
|
310 |
root |
1.31 |
#ifndef D_TYPE |
311 |
|
|
# define D_TYPE(de) 0 |
312 |
|
|
#endif |
313 |
|
|
#ifndef D_INO |
314 |
|
|
# define D_INO(de) 0 |
315 |
|
|
#endif |
316 |
root |
1.33 |
#ifndef D_NAMLEN |
317 |
root |
1.91 |
# define D_NAMLEN(entp) strlen (D_NAME (entp)) |
318 |
root |
1.33 |
#endif |
319 |
root |
1.31 |
|
320 |
root |
1.1 |
/* used for struct dirent, AIX doesn't provide it */ |
321 |
|
|
#ifndef NAME_MAX |
322 |
|
|
# define NAME_MAX 4096 |
323 |
|
|
#endif |
324 |
|
|
|
325 |
root |
1.54 |
/* used for readlink etc. */ |
326 |
|
|
#ifndef PATH_MAX |
327 |
root |
1.144 |
# define PATH_MAX 0 |
328 |
root |
1.54 |
#endif |
329 |
|
|
|
330 |
root |
1.149 |
#ifndef O_CLOEXEC |
331 |
|
|
#define O_CLOEXEC 0 |
332 |
|
|
#endif |
333 |
|
|
|
334 |
root |
1.154 |
#ifndef O_NONBLOCK |
335 |
|
|
#define O_NONBLOCK 0 |
336 |
|
|
#endif |
337 |
|
|
|
338 |
|
|
#ifndef O_SEARCH |
339 |
|
|
#define O_SEARCH O_RDONLY |
340 |
|
|
#endif |
341 |
|
|
|
342 |
|
|
#ifndef O_DIRECTORY |
343 |
|
|
#define O_DIRECTORY 0 |
344 |
|
|
#endif |
345 |
|
|
|
346 |
root |
1.144 |
#ifndef EIO_PATH_MIN |
347 |
|
|
# define EIO_PATH_MIN 8160 |
348 |
|
|
#endif |
349 |
|
|
|
350 |
|
|
#define EIO_PATH_MAX (PATH_MAX <= EIO_PATH_MIN ? EIO_PATH_MIN : PATH_MAX) |
351 |
|
|
|
352 |
root |
1.1 |
/* buffer size for various temporary buffers */ |
353 |
|
|
#define EIO_BUFSIZE 65536 |
354 |
|
|
|
355 |
root |
1.126 |
#define dBUF \ |
356 |
root |
1.94 |
char *eio_buf = malloc (EIO_BUFSIZE); \ |
357 |
root |
1.9 |
errno = ENOMEM; \ |
358 |
root |
1.1 |
if (!eio_buf) \ |
359 |
root |
1.94 |
return -1 |
360 |
|
|
|
361 |
|
|
#define FUBd \ |
362 |
|
|
free (eio_buf) |
363 |
root |
1.1 |
|
364 |
root |
1.104 |
/*****************************************************************************/ |
365 |
|
|
|
366 |
root |
1.134 |
struct etp_tmpbuf; |
367 |
root |
1.107 |
|
368 |
|
|
#if _POSIX_VERSION >= 200809L |
369 |
|
|
#define HAVE_AT 1 |
370 |
root |
1.108 |
#define WD2FD(wd) ((wd) ? (wd)->fd : AT_FDCWD) |
371 |
root |
1.107 |
#else |
372 |
|
|
#define HAVE_AT 0 |
373 |
root |
1.134 |
static const char *wd_expand (struct etp_tmpbuf *tmpbuf, eio_wd wd, const char *path); |
374 |
root |
1.107 |
#endif |
375 |
|
|
|
376 |
|
|
struct eio_pwd |
377 |
|
|
{ |
378 |
|
|
#if HAVE_AT |
379 |
|
|
int fd; |
380 |
|
|
#endif |
381 |
|
|
int len; |
382 |
|
|
char str[1]; /* actually, a 0-terminated canonical path */ |
383 |
|
|
}; |
384 |
|
|
|
385 |
root |
1.104 |
/*****************************************************************************/ |
386 |
|
|
|
387 |
root |
1.14 |
#define ETP_PRI_MIN EIO_PRI_MIN |
388 |
|
|
#define ETP_PRI_MAX EIO_PRI_MAX |
389 |
|
|
|
390 |
root |
1.129 |
#define ETP_TYPE_QUIT -1 |
391 |
|
|
#define ETP_TYPE_GROUP EIO_GROUP |
392 |
|
|
|
393 |
root |
1.138 |
static void eio_nop_callback (void) { } |
394 |
|
|
static void (*eio_want_poll_cb)(void) = eio_nop_callback; |
395 |
|
|
static void (*eio_done_poll_cb)(void) = eio_nop_callback; |
396 |
|
|
|
397 |
|
|
#define ETP_WANT_POLL(pool) eio_want_poll_cb () |
398 |
|
|
#define ETP_DONE_POLL(pool) eio_done_poll_cb () |
399 |
|
|
|
400 |
root |
1.15 |
struct etp_worker; |
401 |
root |
1.14 |
#define ETP_REQ eio_req |
402 |
|
|
#define ETP_DESTROY(req) eio_destroy (req) |
403 |
|
|
static int eio_finish (eio_req *req); |
404 |
|
|
#define ETP_FINISH(req) eio_finish (req) |
405 |
root |
1.15 |
static void eio_execute (struct etp_worker *self, eio_req *req); |
406 |
root |
1.129 |
#define ETP_EXECUTE(wrk,req) eio_execute (wrk, req) |
407 |
root |
1.1 |
|
408 |
root |
1.129 |
#include "etp.c" |
409 |
root |
1.13 |
|
410 |
root |
1.137 |
static struct etp_pool eio_pool; |
411 |
|
|
#define EIO_POOL (&eio_pool) |
412 |
|
|
|
413 |
root |
1.13 |
/*****************************************************************************/ |
414 |
|
|
|
415 |
root |
1.72 |
static void |
416 |
|
|
grp_try_feed (eio_req *grp) |
417 |
root |
1.1 |
{ |
418 |
|
|
while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
419 |
|
|
{ |
420 |
root |
1.136 |
grp->flags &= ~ETP_FLAG_GROUPADD; |
421 |
root |
1.1 |
|
422 |
|
|
EIO_FEED (grp); |
423 |
|
|
|
424 |
|
|
/* stop if no progress has been made */ |
425 |
root |
1.136 |
if (!(grp->flags & ETP_FLAG_GROUPADD)) |
426 |
root |
1.1 |
{ |
427 |
|
|
grp->feed = 0; |
428 |
root |
1.2 |
break; |
429 |
root |
1.1 |
} |
430 |
|
|
} |
431 |
|
|
} |
432 |
|
|
|
433 |
root |
1.72 |
static int |
434 |
|
|
grp_dec (eio_req *grp) |
435 |
root |
1.1 |
{ |
436 |
|
|
--grp->size; |
437 |
|
|
|
438 |
|
|
/* call feeder, if applicable */ |
439 |
root |
1.2 |
grp_try_feed (grp); |
440 |
root |
1.1 |
|
441 |
|
|
/* finish, if done */ |
442 |
root |
1.136 |
if (!grp->size && grp->flags & ETP_FLAG_DELAYED) |
443 |
root |
1.2 |
return eio_finish (grp); |
444 |
root |
1.1 |
else |
445 |
|
|
return 0; |
446 |
|
|
} |
447 |
|
|
|
448 |
root |
1.80 |
static void |
449 |
root |
1.72 |
eio_destroy (eio_req *req) |
450 |
root |
1.1 |
{ |
451 |
root |
1.6 |
if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
452 |
|
|
if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
453 |
root |
1.1 |
|
454 |
|
|
EIO_DESTROY (req); |
455 |
|
|
} |
456 |
|
|
|
457 |
root |
1.72 |
static int |
458 |
|
|
eio_finish (eio_req *req) |
459 |
root |
1.1 |
{ |
460 |
|
|
int res = EIO_FINISH (req); |
461 |
|
|
|
462 |
|
|
if (req->grp) |
463 |
|
|
{ |
464 |
|
|
int res2; |
465 |
|
|
eio_req *grp = req->grp; |
466 |
|
|
|
467 |
|
|
/* unlink request */ |
468 |
|
|
if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
469 |
|
|
if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
470 |
|
|
|
471 |
|
|
if (grp->grp_first == req) |
472 |
|
|
grp->grp_first = req->grp_next; |
473 |
|
|
|
474 |
|
|
res2 = grp_dec (grp); |
475 |
|
|
|
476 |
root |
1.79 |
if (!res) |
477 |
root |
1.1 |
res = res2; |
478 |
|
|
} |
479 |
|
|
|
480 |
|
|
eio_destroy (req); |
481 |
|
|
|
482 |
|
|
return res; |
483 |
|
|
} |
484 |
|
|
|
485 |
root |
1.72 |
void |
486 |
|
|
eio_grp_cancel (eio_req *grp) |
487 |
root |
1.1 |
{ |
488 |
root |
1.137 |
etp_grp_cancel (EIO_POOL, grp); |
489 |
root |
1.1 |
} |
490 |
|
|
|
491 |
root |
1.72 |
void |
492 |
|
|
eio_cancel (eio_req *req) |
493 |
root |
1.1 |
{ |
494 |
root |
1.137 |
etp_cancel (EIO_POOL, req); |
495 |
root |
1.14 |
} |
496 |
root |
1.1 |
|
497 |
root |
1.72 |
void |
498 |
|
|
eio_submit (eio_req *req) |
499 |
root |
1.14 |
{ |
500 |
root |
1.137 |
etp_submit (EIO_POOL, req); |
501 |
root |
1.1 |
} |
502 |
|
|
|
503 |
root |
1.72 |
unsigned int |
504 |
|
|
eio_nreqs (void) |
505 |
root |
1.1 |
{ |
506 |
root |
1.137 |
return etp_nreqs (EIO_POOL); |
507 |
root |
1.1 |
} |
508 |
|
|
|
509 |
root |
1.72 |
unsigned int |
510 |
|
|
eio_nready (void) |
511 |
root |
1.1 |
{ |
512 |
root |
1.137 |
return etp_nready (EIO_POOL); |
513 |
root |
1.1 |
} |
514 |
|
|
|
515 |
root |
1.72 |
unsigned int |
516 |
|
|
eio_npending (void) |
517 |
root |
1.1 |
{ |
518 |
root |
1.137 |
return etp_npending (EIO_POOL); |
519 |
root |
1.1 |
} |
520 |
|
|
|
521 |
root |
1.72 |
unsigned int ecb_cold |
522 |
|
|
eio_nthreads (void) |
523 |
root |
1.1 |
{ |
524 |
root |
1.137 |
return etp_nthreads (EIO_POOL); |
525 |
root |
1.1 |
} |
526 |
|
|
|
527 |
root |
1.72 |
void ecb_cold |
528 |
|
|
eio_set_max_poll_time (double nseconds) |
529 |
root |
1.1 |
{ |
530 |
root |
1.137 |
etp_set_max_poll_time (EIO_POOL, nseconds); |
531 |
root |
1.1 |
} |
532 |
|
|
|
533 |
root |
1.72 |
void ecb_cold |
534 |
|
|
eio_set_max_poll_reqs (unsigned int maxreqs) |
535 |
root |
1.1 |
{ |
536 |
root |
1.137 |
etp_set_max_poll_reqs (EIO_POOL, maxreqs); |
537 |
root |
1.1 |
} |
538 |
|
|
|
539 |
root |
1.72 |
void ecb_cold |
540 |
|
|
eio_set_max_idle (unsigned int nthreads) |
541 |
root |
1.1 |
{ |
542 |
root |
1.137 |
etp_set_max_idle (EIO_POOL, nthreads); |
543 |
root |
1.1 |
} |
544 |
|
|
|
545 |
root |
1.72 |
void ecb_cold |
546 |
|
|
eio_set_idle_timeout (unsigned int seconds) |
547 |
root |
1.62 |
{ |
548 |
root |
1.137 |
etp_set_idle_timeout (EIO_POOL, seconds); |
549 |
root |
1.62 |
} |
550 |
|
|
|
551 |
root |
1.72 |
void ecb_cold |
552 |
|
|
eio_set_min_parallel (unsigned int nthreads) |
553 |
root |
1.1 |
{ |
554 |
root |
1.137 |
etp_set_min_parallel (EIO_POOL, nthreads); |
555 |
root |
1.1 |
} |
556 |
|
|
|
557 |
root |
1.72 |
void ecb_cold |
558 |
|
|
eio_set_max_parallel (unsigned int nthreads) |
559 |
root |
1.1 |
{ |
560 |
root |
1.137 |
etp_set_max_parallel (EIO_POOL, nthreads); |
561 |
root |
1.1 |
} |
562 |
|
|
|
563 |
|
|
int eio_poll (void) |
564 |
|
|
{ |
565 |
root |
1.137 |
return etp_poll (EIO_POOL); |
566 |
root |
1.1 |
} |
567 |
|
|
|
568 |
|
|
/*****************************************************************************/ |
569 |
|
|
/* work around various missing functions */ |
570 |
|
|
|
571 |
root |
1.146 |
#if HAVE_POSIX_CLOSE && !__linux |
572 |
|
|
# define eio__close(fd) posix_close (fd, 0) |
573 |
|
|
#else |
574 |
|
|
# define eio__close(fd) close (fd) |
575 |
|
|
#endif |
576 |
|
|
|
577 |
|
|
/* close() without disturbing errno */ |
578 |
|
|
static void |
579 |
|
|
silent_close (int fd) |
580 |
|
|
{ |
581 |
|
|
int saved_errno = errno; |
582 |
|
|
eio__close (fd); |
583 |
|
|
errno = saved_errno; |
584 |
|
|
} |
585 |
|
|
|
586 |
root |
1.59 |
#ifndef HAVE_UTIMES |
587 |
root |
1.1 |
|
588 |
root |
1.27 |
# undef utimes |
589 |
root |
1.59 |
# define utimes(path,times) eio__utimes (path, times) |
590 |
root |
1.1 |
|
591 |
root |
1.9 |
static int |
592 |
|
|
eio__utimes (const char *filename, const struct timeval times[2]) |
593 |
root |
1.1 |
{ |
594 |
|
|
if (times) |
595 |
|
|
{ |
596 |
|
|
struct utimbuf buf; |
597 |
|
|
|
598 |
|
|
buf.actime = times[0].tv_sec; |
599 |
|
|
buf.modtime = times[1].tv_sec; |
600 |
|
|
|
601 |
|
|
return utime (filename, &buf); |
602 |
|
|
} |
603 |
|
|
else |
604 |
|
|
return utime (filename, 0); |
605 |
|
|
} |
606 |
|
|
|
607 |
root |
1.59 |
#endif |
608 |
|
|
|
609 |
|
|
#ifndef HAVE_FUTIMES |
610 |
|
|
|
611 |
|
|
# undef futimes |
612 |
|
|
# define futimes(fd,times) eio__futimes (fd, times) |
613 |
|
|
|
614 |
root |
1.72 |
static int |
615 |
|
|
eio__futimes (int fd, const struct timeval tv[2]) |
616 |
root |
1.1 |
{ |
617 |
|
|
errno = ENOSYS; |
618 |
|
|
return -1; |
619 |
|
|
} |
620 |
|
|
|
621 |
|
|
#endif |
622 |
|
|
|
623 |
|
|
#if !HAVE_FDATASYNC |
624 |
root |
1.27 |
# undef fdatasync |
625 |
|
|
# define fdatasync(fd) fsync (fd) |
626 |
root |
1.1 |
#endif |
627 |
|
|
|
628 |
root |
1.97 |
static int |
629 |
|
|
eio__syncfs (int fd) |
630 |
|
|
{ |
631 |
|
|
int res; |
632 |
|
|
|
633 |
|
|
#if HAVE_SYS_SYNCFS |
634 |
|
|
res = (int)syscall (__NR_syncfs, (int)(fd)); |
635 |
|
|
#else |
636 |
root |
1.119 |
res = EIO_ENOSYS (); |
637 |
root |
1.97 |
#endif |
638 |
|
|
|
639 |
|
|
if (res < 0 && errno == ENOSYS && fd >= 0) |
640 |
|
|
sync (); |
641 |
|
|
|
642 |
|
|
return res; |
643 |
|
|
} |
644 |
|
|
|
645 |
root |
1.27 |
/* sync_file_range always needs emulation */ |
646 |
root |
1.72 |
static int |
647 |
root |
1.27 |
eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) |
648 |
|
|
{ |
649 |
|
|
#if HAVE_SYNC_FILE_RANGE |
650 |
|
|
int res; |
651 |
|
|
|
652 |
|
|
if (EIO_SYNC_FILE_RANGE_WAIT_BEFORE != SYNC_FILE_RANGE_WAIT_BEFORE |
653 |
|
|
|| EIO_SYNC_FILE_RANGE_WRITE != SYNC_FILE_RANGE_WRITE |
654 |
|
|
|| EIO_SYNC_FILE_RANGE_WAIT_AFTER != SYNC_FILE_RANGE_WAIT_AFTER) |
655 |
|
|
{ |
656 |
|
|
flags = 0 |
657 |
|
|
| (flags & EIO_SYNC_FILE_RANGE_WAIT_BEFORE ? SYNC_FILE_RANGE_WAIT_BEFORE : 0) |
658 |
|
|
| (flags & EIO_SYNC_FILE_RANGE_WRITE ? SYNC_FILE_RANGE_WRITE : 0) |
659 |
|
|
| (flags & EIO_SYNC_FILE_RANGE_WAIT_AFTER ? SYNC_FILE_RANGE_WAIT_AFTER : 0); |
660 |
|
|
} |
661 |
|
|
|
662 |
|
|
res = sync_file_range (fd, offset, nbytes, flags); |
663 |
|
|
|
664 |
root |
1.28 |
if (!res || errno != ENOSYS) |
665 |
root |
1.27 |
return res; |
666 |
|
|
#endif |
667 |
|
|
|
668 |
|
|
/* even though we could play tricks with the flags, it's better to always |
669 |
root |
1.43 |
* call fdatasync, as that matches the expectation of its users best */ |
670 |
root |
1.27 |
return fdatasync (fd); |
671 |
|
|
} |
672 |
|
|
|
673 |
root |
1.83 |
static int |
674 |
root |
1.84 |
eio__fallocate (int fd, int mode, off_t offset, size_t len) |
675 |
root |
1.83 |
{ |
676 |
root |
1.119 |
#if HAVE_LINUX_FALLOCATE |
677 |
root |
1.84 |
return fallocate (fd, mode, offset, len); |
678 |
root |
1.83 |
#else |
679 |
root |
1.119 |
return EIO_ENOSYS (); |
680 |
root |
1.83 |
#endif |
681 |
|
|
} |
682 |
|
|
|
683 |
root |
1.1 |
#if !HAVE_READAHEAD |
684 |
root |
1.27 |
# undef readahead |
685 |
root |
1.9 |
# define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) |
686 |
root |
1.1 |
|
687 |
root |
1.88 |
static eio_ssize_t |
688 |
root |
1.17 |
eio__readahead (int fd, off_t offset, size_t count, etp_worker *self) |
689 |
root |
1.1 |
{ |
690 |
|
|
size_t todo = count; |
691 |
|
|
dBUF; |
692 |
|
|
|
693 |
|
|
while (todo > 0) |
694 |
|
|
{ |
695 |
|
|
size_t len = todo < EIO_BUFSIZE ? todo : EIO_BUFSIZE; |
696 |
root |
1.116 |
|
697 |
|
|
pread (fd, eio_buf, len, offset); |
698 |
root |
1.1 |
offset += len; |
699 |
|
|
todo -= len; |
700 |
|
|
} |
701 |
|
|
|
702 |
root |
1.94 |
FUBd; |
703 |
|
|
|
704 |
root |
1.115 |
/* linux's readahead basically only fails for EBADF or EINVAL (not mmappable) */ |
705 |
|
|
/* but not for e.g. EIO or eof, so we also never fail */ |
706 |
|
|
return 0; |
707 |
root |
1.1 |
} |
708 |
|
|
|
709 |
|
|
#endif |
710 |
|
|
|
711 |
|
|
/* sendfile always needs emulation */ |
712 |
root |
1.88 |
static eio_ssize_t |
713 |
root |
1.94 |
eio__sendfile (int ofd, int ifd, off_t offset, size_t count) |
714 |
root |
1.1 |
{ |
715 |
root |
1.88 |
eio_ssize_t written = 0; |
716 |
|
|
eio_ssize_t res; |
717 |
root |
1.1 |
|
718 |
|
|
if (!count) |
719 |
|
|
return 0; |
720 |
|
|
|
721 |
root |
1.69 |
for (;;) |
722 |
|
|
{ |
723 |
root |
1.82 |
#ifdef __APPLE__ |
724 |
|
|
# undef HAVE_SENDFILE /* broken, as everything on os x */ |
725 |
|
|
#endif |
726 |
root |
1.1 |
#if HAVE_SENDFILE |
727 |
|
|
# if __linux |
728 |
root |
1.69 |
off_t soffset = offset; |
729 |
|
|
res = sendfile (ofd, ifd, &soffset, count); |
730 |
root |
1.1 |
|
731 |
root |
1.50 |
# elif __FreeBSD__ |
732 |
root |
1.69 |
/* |
733 |
|
|
* Of course, the freebsd sendfile is a dire hack with no thoughts |
734 |
|
|
* wasted on making it similar to other I/O functions. |
735 |
|
|
*/ |
736 |
|
|
off_t sbytes; |
737 |
|
|
res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
738 |
|
|
|
739 |
|
|
#if 0 /* according to the manpage, this is correct, but broken behaviour */ |
740 |
|
|
/* freebsd' sendfile will return 0 on success */ |
741 |
|
|
/* freebsd 8 documents it as only setting *sbytes on EINTR and EAGAIN, but */ |
742 |
|
|
/* not on e.g. EIO or EPIPE - sounds broken */ |
743 |
|
|
if ((res < 0 && (errno == EAGAIN || errno == EINTR) && sbytes) || res == 0) |
744 |
|
|
res = sbytes; |
745 |
|
|
#endif |
746 |
|
|
|
747 |
|
|
/* according to source inspection, this is correct, and useful behaviour */ |
748 |
|
|
if (sbytes) |
749 |
|
|
res = sbytes; |
750 |
root |
1.1 |
|
751 |
root |
1.118 |
# elif defined __APPLE__ |
752 |
root |
1.69 |
off_t sbytes = count; |
753 |
|
|
res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); |
754 |
root |
1.45 |
|
755 |
root |
1.69 |
/* according to the manpage, sbytes is always valid */ |
756 |
|
|
if (sbytes) |
757 |
|
|
res = sbytes; |
758 |
root |
1.45 |
|
759 |
root |
1.1 |
# elif __hpux |
760 |
root |
1.69 |
res = sendfile (ofd, ifd, offset, count, 0, 0); |
761 |
root |
1.1 |
|
762 |
|
|
# elif __solaris |
763 |
root |
1.69 |
struct sendfilevec vec; |
764 |
|
|
size_t sbytes; |
765 |
root |
1.1 |
|
766 |
root |
1.69 |
vec.sfv_fd = ifd; |
767 |
|
|
vec.sfv_flag = 0; |
768 |
|
|
vec.sfv_off = offset; |
769 |
|
|
vec.sfv_len = count; |
770 |
root |
1.1 |
|
771 |
root |
1.69 |
res = sendfilev (ofd, &vec, 1, &sbytes); |
772 |
root |
1.1 |
|
773 |
root |
1.69 |
if (res < 0 && sbytes) |
774 |
|
|
res = sbytes; |
775 |
root |
1.1 |
|
776 |
|
|
# endif |
777 |
root |
1.46 |
|
778 |
root |
1.86 |
#elif defined (_WIN32) && 0 |
779 |
root |
1.69 |
/* does not work, just for documentation of what would need to be done */ |
780 |
root |
1.70 |
/* actually, cannot be done like this, as TransmitFile changes the file offset, */ |
781 |
|
|
/* libeio guarantees that the file offset does not change, and windows */ |
782 |
|
|
/* has no way to get an independent handle to the same file description */ |
783 |
root |
1.69 |
HANDLE h = TO_SOCKET (ifd); |
784 |
|
|
SetFilePointer (h, offset, 0, FILE_BEGIN); |
785 |
|
|
res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0); |
786 |
root |
1.45 |
|
787 |
root |
1.1 |
#else |
788 |
root |
1.119 |
res = EIO_ENOSYS (); |
789 |
root |
1.1 |
#endif |
790 |
|
|
|
791 |
root |
1.69 |
/* we assume sendfile can copy at least 128mb in one go */ |
792 |
|
|
if (res <= 128 * 1024 * 1024) |
793 |
|
|
{ |
794 |
|
|
if (res > 0) |
795 |
|
|
written += res; |
796 |
|
|
|
797 |
|
|
if (written) |
798 |
|
|
return written; |
799 |
|
|
|
800 |
|
|
break; |
801 |
|
|
} |
802 |
|
|
else |
803 |
|
|
{ |
804 |
|
|
/* if we requested more, then probably the kernel was lazy */ |
805 |
|
|
written += res; |
806 |
|
|
offset += res; |
807 |
|
|
count -= res; |
808 |
|
|
|
809 |
|
|
if (!count) |
810 |
|
|
return written; |
811 |
|
|
} |
812 |
|
|
} |
813 |
|
|
|
814 |
|
|
if (res < 0 |
815 |
root |
1.1 |
&& (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
816 |
root |
1.49 |
/* BSDs */ |
817 |
|
|
#ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ |
818 |
|
|
|| errno == ENOTSUP |
819 |
|
|
#endif |
820 |
root |
1.90 |
#ifdef EOPNOTSUPP /* windows */ |
821 |
root |
1.49 |
|| errno == EOPNOTSUPP /* BSDs */ |
822 |
root |
1.90 |
#endif |
823 |
root |
1.1 |
#if __solaris |
824 |
|
|
|| errno == EAFNOSUPPORT || errno == EPROTOTYPE |
825 |
|
|
#endif |
826 |
|
|
) |
827 |
|
|
) |
828 |
|
|
{ |
829 |
|
|
/* emulate sendfile. this is a major pain in the ass */ |
830 |
|
|
dBUF; |
831 |
|
|
|
832 |
|
|
res = 0; |
833 |
|
|
|
834 |
|
|
while (count) |
835 |
|
|
{ |
836 |
root |
1.88 |
eio_ssize_t cnt; |
837 |
root |
1.1 |
|
838 |
|
|
cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset); |
839 |
|
|
|
840 |
|
|
if (cnt <= 0) |
841 |
|
|
{ |
842 |
|
|
if (cnt && !res) res = -1; |
843 |
|
|
break; |
844 |
|
|
} |
845 |
|
|
|
846 |
|
|
cnt = write (ofd, eio_buf, cnt); |
847 |
|
|
|
848 |
|
|
if (cnt <= 0) |
849 |
|
|
{ |
850 |
|
|
if (cnt && !res) res = -1; |
851 |
|
|
break; |
852 |
|
|
} |
853 |
|
|
|
854 |
|
|
offset += cnt; |
855 |
|
|
res += cnt; |
856 |
|
|
count -= cnt; |
857 |
|
|
} |
858 |
root |
1.94 |
|
859 |
|
|
FUBd; |
860 |
root |
1.1 |
} |
861 |
|
|
|
862 |
|
|
return res; |
863 |
|
|
} |
864 |
|
|
|
865 |
root |
1.77 |
#ifdef PAGESIZE |
866 |
|
|
# define eio_pagesize() PAGESIZE |
867 |
|
|
#else |
868 |
|
|
static intptr_t |
869 |
|
|
eio_pagesize (void) |
870 |
|
|
{ |
871 |
|
|
static intptr_t page; |
872 |
|
|
|
873 |
|
|
if (!page) |
874 |
|
|
page = sysconf (_SC_PAGESIZE); |
875 |
|
|
|
876 |
|
|
return page; |
877 |
|
|
} |
878 |
|
|
#endif |
879 |
|
|
|
880 |
|
|
static void |
881 |
|
|
eio_page_align (void **addr, size_t *length) |
882 |
|
|
{ |
883 |
|
|
intptr_t mask = eio_pagesize () - 1; |
884 |
|
|
|
885 |
|
|
/* round down addr */ |
886 |
|
|
intptr_t adj = mask & (intptr_t)*addr; |
887 |
|
|
|
888 |
|
|
*addr = (void *)((intptr_t)*addr - adj); |
889 |
|
|
*length += adj; |
890 |
|
|
|
891 |
|
|
/* round up length */ |
892 |
|
|
*length = (*length + mask) & ~mask; |
893 |
|
|
} |
894 |
|
|
|
895 |
|
|
#if !_POSIX_MEMLOCK |
896 |
root |
1.89 |
# define eio__mlockall(a) EIO_ENOSYS () |
897 |
root |
1.77 |
#else |
898 |
|
|
|
899 |
|
|
static int |
900 |
|
|
eio__mlockall (int flags) |
901 |
|
|
{ |
902 |
|
|
#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 |
903 |
|
|
extern int mallopt (int, int); |
904 |
|
|
mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */ |
905 |
|
|
#endif |
906 |
|
|
|
907 |
|
|
if (EIO_MCL_CURRENT != MCL_CURRENT |
908 |
|
|
|| EIO_MCL_FUTURE != MCL_FUTURE) |
909 |
|
|
{ |
910 |
|
|
flags = 0 |
911 |
|
|
| (flags & EIO_MCL_CURRENT ? MCL_CURRENT : 0) |
912 |
|
|
| (flags & EIO_MCL_FUTURE ? MCL_FUTURE : 0); |
913 |
|
|
} |
914 |
|
|
|
915 |
|
|
return mlockall (flags); |
916 |
|
|
} |
917 |
|
|
#endif |
918 |
|
|
|
919 |
|
|
#if !_POSIX_MEMLOCK_RANGE |
920 |
root |
1.86 |
# define eio__mlock(a,b) EIO_ENOSYS () |
921 |
root |
1.77 |
#else |
922 |
|
|
|
923 |
|
|
static int |
924 |
|
|
eio__mlock (void *addr, size_t length) |
925 |
|
|
{ |
926 |
|
|
eio_page_align (&addr, &length); |
927 |
|
|
|
928 |
|
|
return mlock (addr, length); |
929 |
|
|
} |
930 |
|
|
|
931 |
|
|
#endif |
932 |
|
|
|
933 |
|
|
#if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
934 |
root |
1.86 |
# define eio__msync(a,b,c) EIO_ENOSYS () |
935 |
root |
1.77 |
#else |
936 |
|
|
|
937 |
|
|
static int |
938 |
|
|
eio__msync (void *mem, size_t len, int flags) |
939 |
|
|
{ |
940 |
|
|
eio_page_align (&mem, &len); |
941 |
|
|
|
942 |
|
|
if (EIO_MS_ASYNC != MS_SYNC |
943 |
|
|
|| EIO_MS_INVALIDATE != MS_INVALIDATE |
944 |
|
|
|| EIO_MS_SYNC != MS_SYNC) |
945 |
|
|
{ |
946 |
|
|
flags = 0 |
947 |
|
|
| (flags & EIO_MS_ASYNC ? MS_ASYNC : 0) |
948 |
|
|
| (flags & EIO_MS_INVALIDATE ? MS_INVALIDATE : 0) |
949 |
|
|
| (flags & EIO_MS_SYNC ? MS_SYNC : 0); |
950 |
|
|
} |
951 |
|
|
|
952 |
|
|
return msync (mem, len, flags); |
953 |
|
|
} |
954 |
|
|
|
955 |
|
|
#endif |
956 |
|
|
|
957 |
|
|
static int |
958 |
|
|
eio__mtouch (eio_req *req) |
959 |
|
|
{ |
960 |
|
|
void *mem = req->ptr2; |
961 |
|
|
size_t len = req->size; |
962 |
|
|
int flags = req->int1; |
963 |
|
|
|
964 |
|
|
eio_page_align (&mem, &len); |
965 |
|
|
|
966 |
|
|
{ |
967 |
|
|
intptr_t addr = (intptr_t)mem; |
968 |
|
|
intptr_t end = addr + len; |
969 |
|
|
intptr_t page = eio_pagesize (); |
970 |
|
|
|
971 |
|
|
if (addr < end) |
972 |
|
|
if (flags & EIO_MT_MODIFY) /* modify */ |
973 |
root |
1.150 |
do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < end && !EIO_CANCELLED (req)); |
974 |
root |
1.77 |
else |
975 |
root |
1.150 |
do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < end && !EIO_CANCELLED (req)); |
976 |
root |
1.77 |
} |
977 |
|
|
|
978 |
|
|
return 0; |
979 |
|
|
} |
980 |
|
|
|
981 |
|
|
/*****************************************************************************/ |
982 |
|
|
/* requests implemented outside eio_execute, because they are so large */ |
983 |
|
|
|
984 |
root |
1.117 |
static void |
985 |
|
|
eio__lseek (eio_req *req) |
986 |
|
|
{ |
987 |
|
|
/* this usually gets optimised away completely, or your compiler sucks, */ |
988 |
|
|
/* or the whence constants really are not 0, 1, 2 */ |
989 |
|
|
int whence = req->int2 == EIO_SEEK_SET ? SEEK_SET |
990 |
|
|
: req->int2 == EIO_SEEK_CUR ? SEEK_CUR |
991 |
|
|
: req->int2 == EIO_SEEK_END ? SEEK_END |
992 |
|
|
: req->int2; |
993 |
|
|
|
994 |
|
|
req->offs = lseek (req->int1, req->offs, whence); |
995 |
|
|
req->result = req->offs == (off_t)-1 ? -1 : 0; |
996 |
|
|
} |
997 |
|
|
|
998 |
root |
1.104 |
/* result will always end up in tmpbuf, there is always space for adding a 0-byte */ |
999 |
|
|
static int |
1000 |
root |
1.134 |
eio__realpath (struct etp_tmpbuf *tmpbuf, eio_wd wd, const char *path) |
1001 |
root |
1.77 |
{ |
1002 |
root |
1.130 |
char *res; |
1003 |
root |
1.104 |
const char *rel = path; |
1004 |
root |
1.77 |
char *tmp1, *tmp2; |
1005 |
|
|
#if SYMLOOP_MAX > 32 |
1006 |
root |
1.78 |
int symlinks = SYMLOOP_MAX; |
1007 |
root |
1.77 |
#else |
1008 |
root |
1.78 |
int symlinks = 32; |
1009 |
root |
1.77 |
#endif |
1010 |
|
|
|
1011 |
|
|
errno = EINVAL; |
1012 |
|
|
if (!rel) |
1013 |
root |
1.104 |
return -1; |
1014 |
root |
1.77 |
|
1015 |
|
|
errno = ENOENT; |
1016 |
|
|
if (!*rel) |
1017 |
root |
1.104 |
return -1; |
1018 |
root |
1.77 |
|
1019 |
root |
1.144 |
res = etp_tmpbuf_get (tmpbuf, EIO_PATH_MAX * 3); |
1020 |
root |
1.130 |
#ifdef _WIN32 |
1021 |
|
|
if (_access (rel, 4) != 0) |
1022 |
|
|
return -1; |
1023 |
|
|
|
1024 |
root |
1.144 |
symlinks = GetFullPathName (rel, EIO_PATH_MAX * 3, res, 0); |
1025 |
root |
1.130 |
|
1026 |
|
|
errno = ENAMETOOLONG; |
1027 |
root |
1.144 |
if (symlinks >= EIO_PATH_MAX * 3) |
1028 |
root |
1.130 |
return -1; |
1029 |
|
|
|
1030 |
|
|
errno = EIO; |
1031 |
|
|
if (symlinks <= 0) |
1032 |
|
|
return -1; |
1033 |
|
|
|
1034 |
|
|
return symlinks; |
1035 |
|
|
|
1036 |
|
|
#else |
1037 |
root |
1.144 |
tmp1 = res + EIO_PATH_MAX; |
1038 |
|
|
tmp2 = tmp1 + EIO_PATH_MAX; |
1039 |
root |
1.77 |
|
1040 |
root |
1.78 |
#if 0 /* disabled, the musl way to do things is just too racy */ |
1041 |
|
|
#if __linux && defined(O_NONBLOCK) && defined(O_NOATIME) |
1042 |
|
|
/* on linux we may be able to ask the kernel */ |
1043 |
|
|
{ |
1044 |
|
|
int fd = open (rel, O_RDONLY | O_NONBLOCK | O_NOCTTY | O_NOATIME); |
1045 |
|
|
|
1046 |
|
|
if (fd >= 0) |
1047 |
|
|
{ |
1048 |
|
|
sprintf (tmp1, "/proc/self/fd/%d", fd); |
1049 |
root |
1.144 |
req->result = readlink (tmp1, res, EIO_PATH_MAX); |
1050 |
root |
1.126 |
/* here we should probably stat the open file and the disk file, to make sure they still match */ |
1051 |
root |
1.146 |
eio__close (fd); |
1052 |
root |
1.78 |
|
1053 |
|
|
if (req->result > 0) |
1054 |
|
|
goto done; |
1055 |
|
|
} |
1056 |
|
|
else if (errno == ELOOP || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EIO) |
1057 |
root |
1.126 |
return -1; |
1058 |
root |
1.78 |
} |
1059 |
|
|
#endif |
1060 |
|
|
#endif |
1061 |
|
|
|
1062 |
root |
1.77 |
if (*rel != '/') |
1063 |
|
|
{ |
1064 |
root |
1.107 |
int len; |
1065 |
|
|
|
1066 |
|
|
errno = ENOENT; |
1067 |
|
|
if (wd == EIO_INVALID_WD) |
1068 |
root |
1.104 |
return -1; |
1069 |
root |
1.107 |
|
1070 |
|
|
if (wd == EIO_CWD) |
1071 |
|
|
{ |
1072 |
root |
1.144 |
if (!getcwd (res, EIO_PATH_MAX)) |
1073 |
root |
1.107 |
return -1; |
1074 |
|
|
|
1075 |
|
|
len = strlen (res); |
1076 |
|
|
} |
1077 |
|
|
else |
1078 |
|
|
memcpy (res, wd->str, len = wd->len); |
1079 |
root |
1.77 |
|
1080 |
|
|
if (res [1]) /* only use if not / */ |
1081 |
root |
1.107 |
res += len; |
1082 |
root |
1.77 |
} |
1083 |
|
|
|
1084 |
|
|
while (*rel) |
1085 |
|
|
{ |
1086 |
root |
1.88 |
eio_ssize_t len, linklen; |
1087 |
root |
1.104 |
const char *beg = rel; |
1088 |
root |
1.77 |
|
1089 |
|
|
while (*rel && *rel != '/') |
1090 |
|
|
++rel; |
1091 |
|
|
|
1092 |
|
|
len = rel - beg; |
1093 |
|
|
|
1094 |
|
|
if (!len) /* skip slashes */ |
1095 |
|
|
{ |
1096 |
|
|
++rel; |
1097 |
|
|
continue; |
1098 |
|
|
} |
1099 |
|
|
|
1100 |
|
|
if (beg [0] == '.') |
1101 |
|
|
{ |
1102 |
|
|
if (len == 1) |
1103 |
|
|
continue; /* . - nop */ |
1104 |
|
|
|
1105 |
|
|
if (beg [1] == '.' && len == 2) |
1106 |
|
|
{ |
1107 |
|
|
/* .. - back up one component, if possible */ |
1108 |
|
|
|
1109 |
root |
1.104 |
while (res != tmpbuf->ptr) |
1110 |
root |
1.77 |
if (*--res == '/') |
1111 |
|
|
break; |
1112 |
|
|
|
1113 |
|
|
continue; |
1114 |
|
|
} |
1115 |
|
|
} |
1116 |
|
|
|
1117 |
|
|
errno = ENAMETOOLONG; |
1118 |
|
|
if (res + 1 + len + 1 >= tmp1) |
1119 |
root |
1.114 |
return -1; |
1120 |
root |
1.77 |
|
1121 |
|
|
/* copy one component */ |
1122 |
|
|
*res = '/'; |
1123 |
|
|
memcpy (res + 1, beg, len); |
1124 |
|
|
|
1125 |
|
|
/* zero-terminate, for readlink */ |
1126 |
|
|
res [len + 1] = 0; |
1127 |
|
|
|
1128 |
|
|
/* now check if it's a symlink */ |
1129 |
root |
1.144 |
linklen = readlink (tmpbuf->ptr, tmp1, EIO_PATH_MAX); |
1130 |
root |
1.77 |
|
1131 |
|
|
if (linklen < 0) |
1132 |
|
|
{ |
1133 |
|
|
if (errno != EINVAL) |
1134 |
root |
1.104 |
return -1; |
1135 |
root |
1.77 |
|
1136 |
|
|
/* it's a normal directory. hopefully */ |
1137 |
|
|
res += len + 1; |
1138 |
|
|
} |
1139 |
|
|
else |
1140 |
|
|
{ |
1141 |
|
|
/* yay, it was a symlink - build new path in tmp2 */ |
1142 |
|
|
int rellen = strlen (rel); |
1143 |
|
|
|
1144 |
|
|
errno = ENAMETOOLONG; |
1145 |
root |
1.144 |
if (linklen + 1 + rellen >= EIO_PATH_MAX) /* also catch linklen >= EIO_PATH_MAX */ |
1146 |
root |
1.104 |
return -1; |
1147 |
root |
1.77 |
|
1148 |
root |
1.78 |
errno = ELOOP; |
1149 |
|
|
if (!--symlinks) |
1150 |
root |
1.104 |
return -1; |
1151 |
root |
1.78 |
|
1152 |
root |
1.77 |
if (*tmp1 == '/') |
1153 |
root |
1.104 |
res = tmpbuf->ptr; /* symlink resolves to an absolute path */ |
1154 |
root |
1.77 |
|
1155 |
|
|
/* we need to be careful, as rel might point into tmp2 already */ |
1156 |
|
|
memmove (tmp2 + linklen + 1, rel, rellen + 1); |
1157 |
|
|
tmp2 [linklen] = '/'; |
1158 |
|
|
memcpy (tmp2, tmp1, linklen); |
1159 |
|
|
|
1160 |
|
|
rel = tmp2; |
1161 |
|
|
} |
1162 |
|
|
} |
1163 |
|
|
|
1164 |
|
|
/* special case for the lone root path */ |
1165 |
root |
1.104 |
if (res == tmpbuf->ptr) |
1166 |
root |
1.77 |
*res++ = '/'; |
1167 |
|
|
|
1168 |
root |
1.104 |
return res - (char *)tmpbuf->ptr; |
1169 |
root |
1.130 |
#endif |
1170 |
root |
1.77 |
} |
1171 |
|
|
|
1172 |
root |
1.37 |
static signed char |
1173 |
|
|
eio_dent_cmp (const eio_dirent *a, const eio_dirent *b) |
1174 |
|
|
{ |
1175 |
root |
1.63 |
return a->score - b->score ? a->score - b->score /* works because our signed char is always 0..100 */ |
1176 |
|
|
: a->inode < b->inode ? -1 |
1177 |
|
|
: a->inode > b->inode ? 1 |
1178 |
|
|
: 0; |
1179 |
root |
1.37 |
} |
1180 |
|
|
|
1181 |
root |
1.39 |
#define EIO_DENT_CMP(i,op,j) eio_dent_cmp (&i, &j) op 0 |
1182 |
|
|
|
1183 |
root |
1.42 |
#define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */ |
1184 |
|
|
#define EIO_SORT_FAST 60 /* when to only use insertion sort */ |
1185 |
root |
1.37 |
|
1186 |
|
|
static void |
1187 |
root |
1.91 |
eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits) |
1188 |
root |
1.31 |
{ |
1189 |
root |
1.91 |
unsigned char bits [9 + sizeof (eio_ino_t) * 8]; |
1190 |
root |
1.42 |
unsigned char *bit = bits; |
1191 |
|
|
|
1192 |
|
|
assert (CHAR_BIT == 8); |
1193 |
|
|
assert (sizeof (eio_dirent) * 8 < 256); |
1194 |
root |
1.63 |
assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */ |
1195 |
|
|
assert (offsetof (eio_dirent, score)); /* we use bit #0 as sentinel */ |
1196 |
root |
1.42 |
|
1197 |
|
|
if (size <= EIO_SORT_FAST) |
1198 |
|
|
return; |
1199 |
|
|
|
1200 |
|
|
/* first prepare an array of bits to test in our radix sort */ |
1201 |
root |
1.91 |
/* try to take endianness into account, as well as differences in eio_ino_t sizes */ |
1202 |
root |
1.42 |
/* inode_bits must contain all inodes ORed together */ |
1203 |
|
|
/* which is used to skip bits that are 0 everywhere, which is very common */ |
1204 |
|
|
{ |
1205 |
root |
1.91 |
eio_ino_t endianness; |
1206 |
root |
1.42 |
int i, j; |
1207 |
root |
1.39 |
|
1208 |
root |
1.42 |
/* we store the byte offset of byte n into byte n of "endianness" */ |
1209 |
root |
1.91 |
for (i = 0; i < sizeof (eio_ino_t); ++i) |
1210 |
root |
1.42 |
((unsigned char *)&endianness)[i] = i; |
1211 |
root |
1.37 |
|
1212 |
root |
1.42 |
*bit++ = 0; |
1213 |
root |
1.37 |
|
1214 |
root |
1.91 |
for (i = 0; i < sizeof (eio_ino_t); ++i) |
1215 |
root |
1.42 |
{ |
1216 |
|
|
/* shifting off the byte offsets out of "endianness" */ |
1217 |
|
|
int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8; |
1218 |
|
|
endianness >>= 8; |
1219 |
|
|
|
1220 |
|
|
for (j = 0; j < 8; ++j) |
1221 |
root |
1.91 |
if (inode_bits & (((eio_ino_t)1) << (i * 8 + j))) |
1222 |
root |
1.42 |
*bit++ = offs + j; |
1223 |
|
|
} |
1224 |
root |
1.38 |
|
1225 |
root |
1.42 |
for (j = 0; j < 8; ++j) |
1226 |
|
|
if (score_bits & (1 << j)) |
1227 |
|
|
*bit++ = offsetof (eio_dirent, score) * 8 + j; |
1228 |
|
|
} |
1229 |
root |
1.37 |
|
1230 |
root |
1.42 |
/* now actually do the sorting (a variant of MSD radix sort) */ |
1231 |
|
|
{ |
1232 |
root |
1.91 |
eio_dirent *base_stk [9 + sizeof (eio_ino_t) * 8], *base; |
1233 |
|
|
eio_dirent *end_stk [9 + sizeof (eio_ino_t) * 8], *end; |
1234 |
|
|
unsigned char *bit_stk [9 + sizeof (eio_ino_t) * 8]; |
1235 |
root |
1.42 |
int stk_idx = 0; |
1236 |
|
|
|
1237 |
|
|
base_stk [stk_idx] = dents; |
1238 |
|
|
end_stk [stk_idx] = dents + size; |
1239 |
|
|
bit_stk [stk_idx] = bit - 1; |
1240 |
root |
1.37 |
|
1241 |
root |
1.42 |
do |
1242 |
|
|
{ |
1243 |
|
|
base = base_stk [stk_idx]; |
1244 |
|
|
end = end_stk [stk_idx]; |
1245 |
|
|
bit = bit_stk [stk_idx]; |
1246 |
root |
1.37 |
|
1247 |
root |
1.42 |
for (;;) |
1248 |
|
|
{ |
1249 |
|
|
unsigned char O = *bit >> 3; |
1250 |
|
|
unsigned char M = 1 << (*bit & 7); |
1251 |
root |
1.31 |
|
1252 |
root |
1.42 |
eio_dirent *a = base; |
1253 |
|
|
eio_dirent *b = end; |
1254 |
root |
1.37 |
|
1255 |
root |
1.42 |
if (b - a < EIO_SORT_CUTOFF) |
1256 |
|
|
break; |
1257 |
root |
1.37 |
|
1258 |
root |
1.42 |
/* now bit-partition the array on the bit */ |
1259 |
|
|
/* this ugly asymmetric loop seems to perform much better than typical */ |
1260 |
|
|
/* partition algos found in the literature */ |
1261 |
|
|
do |
1262 |
|
|
if (!(((unsigned char *)a)[O] & M)) |
1263 |
|
|
++a; |
1264 |
|
|
else if (!(((unsigned char *)--b)[O] & M)) |
1265 |
root |
1.38 |
{ |
1266 |
root |
1.42 |
eio_dirent tmp = *a; *a = *b; *b = tmp; |
1267 |
|
|
++a; |
1268 |
|
|
} |
1269 |
|
|
while (b > a); |
1270 |
|
|
|
1271 |
|
|
/* next bit, or stop, if no bits left in this path */ |
1272 |
|
|
if (!*--bit) |
1273 |
|
|
break; |
1274 |
root |
1.37 |
|
1275 |
root |
1.42 |
base_stk [stk_idx] = a; |
1276 |
|
|
end_stk [stk_idx] = end; |
1277 |
|
|
bit_stk [stk_idx] = bit; |
1278 |
|
|
++stk_idx; |
1279 |
|
|
|
1280 |
|
|
end = a; |
1281 |
|
|
} |
1282 |
|
|
} |
1283 |
|
|
while (stk_idx--); |
1284 |
|
|
} |
1285 |
|
|
} |
1286 |
root |
1.37 |
|
1287 |
root |
1.42 |
static void |
1288 |
|
|
eio_dent_insertion_sort (eio_dirent *dents, int size) |
1289 |
|
|
{ |
1290 |
root |
1.39 |
/* first move the smallest element to the front, to act as a sentinel */ |
1291 |
|
|
{ |
1292 |
root |
1.41 |
int i; |
1293 |
|
|
eio_dirent *min = dents; |
1294 |
|
|
|
1295 |
root |
1.42 |
/* the radix pre-pass ensures that the minimum element is in the first EIO_SORT_CUTOFF + 1 elements */ |
1296 |
|
|
for (i = size > EIO_SORT_FAST ? EIO_SORT_CUTOFF + 1 : size; --i; ) |
1297 |
root |
1.41 |
if (EIO_DENT_CMP (dents [i], <, *min)) |
1298 |
|
|
min = &dents [i]; |
1299 |
root |
1.39 |
|
1300 |
|
|
/* swap elements 0 and j (minimum) */ |
1301 |
|
|
{ |
1302 |
root |
1.41 |
eio_dirent tmp = *dents; *dents = *min; *min = tmp; |
1303 |
root |
1.39 |
} |
1304 |
|
|
} |
1305 |
|
|
|
1306 |
root |
1.42 |
/* then do standard insertion sort, assuming that all elements are >= dents [0] */ |
1307 |
root |
1.41 |
{ |
1308 |
|
|
eio_dirent *i, *j; |
1309 |
|
|
|
1310 |
|
|
for (i = dents + 1; i < dents + size; ++i) |
1311 |
|
|
{ |
1312 |
|
|
eio_dirent value = *i; |
1313 |
root |
1.37 |
|
1314 |
root |
1.41 |
for (j = i - 1; EIO_DENT_CMP (*j, >, value); --j) |
1315 |
|
|
j [1] = j [0]; |
1316 |
root |
1.37 |
|
1317 |
root |
1.41 |
j [1] = value; |
1318 |
|
|
} |
1319 |
|
|
} |
1320 |
root |
1.31 |
} |
1321 |
|
|
|
1322 |
root |
1.42 |
static void |
1323 |
root |
1.91 |
eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits) |
1324 |
root |
1.42 |
{ |
1325 |
|
|
if (size <= 1) |
1326 |
|
|
return; /* our insertion sort relies on size > 0 */ |
1327 |
|
|
|
1328 |
|
|
/* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */ |
1329 |
|
|
/* and stop sorting when the partitions are <= EIO_SORT_CUTOFF */ |
1330 |
|
|
eio_dent_radix_sort (dents, size, score_bits, inode_bits); |
1331 |
|
|
|
1332 |
|
|
/* use an insertion sort at the end, or for small arrays, */ |
1333 |
|
|
/* as insertion sort is more efficient for small partitions */ |
1334 |
|
|
eio_dent_insertion_sort (dents, size); |
1335 |
|
|
} |
1336 |
|
|
|
1337 |
root |
1.1 |
/* read a full directory */ |
1338 |
root |
1.9 |
static void |
1339 |
root |
1.107 |
eio__scandir (eio_req *req, etp_worker *self) |
1340 |
root |
1.1 |
{ |
1341 |
root |
1.37 |
char *name, *names; |
1342 |
root |
1.91 |
int namesalloc = 4096 - sizeof (void *) * 4; |
1343 |
root |
1.31 |
int namesoffs = 0; |
1344 |
|
|
int flags = req->int1; |
1345 |
|
|
eio_dirent *dents = 0; |
1346 |
|
|
int dentalloc = 128; |
1347 |
|
|
int dentoffs = 0; |
1348 |
root |
1.91 |
eio_ino_t inode_bits = 0; |
1349 |
|
|
#ifdef _WIN32 |
1350 |
|
|
HANDLE dirp; |
1351 |
|
|
WIN32_FIND_DATA entp; |
1352 |
|
|
#else |
1353 |
|
|
DIR *dirp; |
1354 |
|
|
EIO_STRUCT_DIRENT *entp; |
1355 |
|
|
#endif |
1356 |
root |
1.31 |
|
1357 |
|
|
req->result = -1; |
1358 |
|
|
|
1359 |
|
|
if (!(flags & EIO_READDIR_DENTS)) |
1360 |
|
|
flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER); |
1361 |
root |
1.1 |
|
1362 |
root |
1.91 |
#ifdef _WIN32 |
1363 |
|
|
{ |
1364 |
root |
1.92 |
int len = strlen ((const char *)req->ptr1); |
1365 |
root |
1.91 |
char *path = malloc (MAX_PATH); |
1366 |
root |
1.92 |
const char *fmt; |
1367 |
root |
1.107 |
const char *reqpath = wd_expand (&self->tmpbuf, req->wd, req->ptr1); |
1368 |
root |
1.92 |
|
1369 |
|
|
if (!len) |
1370 |
|
|
fmt = "./*"; |
1371 |
root |
1.107 |
else if (reqpath[len - 1] == '/' || reqpath[len - 1] == '\\') |
1372 |
root |
1.92 |
fmt = "%s*"; |
1373 |
|
|
else |
1374 |
|
|
fmt = "%s/*"; |
1375 |
|
|
|
1376 |
root |
1.107 |
_snprintf (path, MAX_PATH, fmt, reqpath); |
1377 |
root |
1.91 |
dirp = FindFirstFile (path, &entp); |
1378 |
|
|
free (path); |
1379 |
|
|
|
1380 |
root |
1.92 |
if (dirp == INVALID_HANDLE_VALUE) |
1381 |
|
|
{ |
1382 |
root |
1.103 |
/* should steal _dosmaperr */ |
1383 |
|
|
switch (GetLastError ()) |
1384 |
|
|
{ |
1385 |
|
|
case ERROR_FILE_NOT_FOUND: |
1386 |
|
|
req->result = 0; |
1387 |
|
|
break; |
1388 |
|
|
|
1389 |
|
|
case ERROR_INVALID_NAME: |
1390 |
|
|
case ERROR_PATH_NOT_FOUND: |
1391 |
|
|
case ERROR_NO_MORE_FILES: |
1392 |
|
|
errno = ENOENT; |
1393 |
|
|
break; |
1394 |
|
|
|
1395 |
|
|
case ERROR_NOT_ENOUGH_MEMORY: |
1396 |
|
|
errno = ENOMEM; |
1397 |
|
|
break; |
1398 |
|
|
|
1399 |
|
|
default: |
1400 |
|
|
errno = EINVAL; |
1401 |
|
|
break; |
1402 |
|
|
} |
1403 |
root |
1.92 |
|
1404 |
root |
1.103 |
return; |
1405 |
root |
1.92 |
} |
1406 |
root |
1.91 |
} |
1407 |
|
|
#else |
1408 |
root |
1.107 |
#if HAVE_AT |
1409 |
root |
1.152 |
{ |
1410 |
root |
1.154 |
int fd = openat (WD2FD (req->wd), req->ptr1, O_CLOEXEC | O_SEARCH | O_DIRECTORY | O_NONBLOCK); |
1411 |
root |
1.152 |
|
1412 |
|
|
if (fd < 0) |
1413 |
|
|
return; |
1414 |
|
|
|
1415 |
|
|
dirp = fdopendir (fd); |
1416 |
|
|
|
1417 |
|
|
if (!dirp) |
1418 |
root |
1.153 |
{ |
1419 |
|
|
silent_close (fd); |
1420 |
|
|
return; |
1421 |
|
|
} |
1422 |
root |
1.152 |
} |
1423 |
root |
1.107 |
#else |
1424 |
|
|
dirp = opendir (wd_expand (&self->tmpbuf, req->wd, req->ptr1)); |
1425 |
root |
1.153 |
|
1426 |
|
|
if (!dirp) |
1427 |
|
|
return; |
1428 |
root |
1.107 |
#endif |
1429 |
root |
1.91 |
#endif |
1430 |
root |
1.63 |
|
1431 |
root |
1.74 |
if (req->flags & EIO_FLAG_PTR1_FREE) |
1432 |
|
|
free (req->ptr1); |
1433 |
|
|
|
1434 |
root |
1.31 |
req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE; |
1435 |
root |
1.42 |
req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0; |
1436 |
|
|
req->ptr2 = names = malloc (namesalloc); |
1437 |
root |
1.1 |
|
1438 |
root |
1.103 |
if (!names || (flags && !dents)) |
1439 |
|
|
return; |
1440 |
|
|
|
1441 |
|
|
for (;;) |
1442 |
|
|
{ |
1443 |
|
|
int done; |
1444 |
root |
1.91 |
|
1445 |
|
|
#ifdef _WIN32 |
1446 |
root |
1.103 |
done = !dirp; |
1447 |
root |
1.91 |
#else |
1448 |
root |
1.103 |
errno = 0; |
1449 |
|
|
entp = readdir (dirp); |
1450 |
|
|
done = !entp; |
1451 |
root |
1.91 |
#endif |
1452 |
root |
1.1 |
|
1453 |
root |
1.103 |
if (done) |
1454 |
|
|
{ |
1455 |
root |
1.91 |
#ifndef _WIN32 |
1456 |
root |
1.103 |
int old_errno = errno; |
1457 |
|
|
closedir (dirp); |
1458 |
|
|
errno = old_errno; |
1459 |
root |
1.91 |
|
1460 |
root |
1.103 |
if (errno) |
1461 |
|
|
break; |
1462 |
root |
1.91 |
#endif |
1463 |
root |
1.31 |
|
1464 |
root |
1.103 |
/* sort etc. */ |
1465 |
|
|
req->int1 = flags; |
1466 |
|
|
req->result = dentoffs; |
1467 |
|
|
|
1468 |
|
|
if (flags & EIO_READDIR_STAT_ORDER) |
1469 |
|
|
eio_dent_sort (dents, dentoffs, flags & EIO_READDIR_DIRS_FIRST ? 7 : 0, inode_bits); |
1470 |
|
|
else if (flags & EIO_READDIR_DIRS_FIRST) |
1471 |
|
|
if (flags & EIO_READDIR_FOUND_UNKNOWN) |
1472 |
|
|
eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */ |
1473 |
|
|
else |
1474 |
|
|
{ |
1475 |
|
|
/* in this case, all is known, and we just put dirs first and sort them */ |
1476 |
|
|
eio_dirent *oth = dents + dentoffs; |
1477 |
|
|
eio_dirent *dir = dents; |
1478 |
|
|
|
1479 |
|
|
/* now partition dirs to the front, and non-dirs to the back */ |
1480 |
|
|
/* by walking from both sides and swapping if necessary */ |
1481 |
|
|
while (oth > dir) |
1482 |
|
|
{ |
1483 |
|
|
if (dir->type == EIO_DT_DIR) |
1484 |
|
|
++dir; |
1485 |
|
|
else if ((--oth)->type == EIO_DT_DIR) |
1486 |
|
|
{ |
1487 |
|
|
eio_dirent tmp = *dir; *dir = *oth; *oth = tmp; |
1488 |
|
|
|
1489 |
root |
1.41 |
++dir; |
1490 |
root |
1.103 |
} |
1491 |
|
|
} |
1492 |
root |
1.42 |
|
1493 |
root |
1.103 |
/* now sort the dirs only (dirs all have the same score) */ |
1494 |
|
|
eio_dent_sort (dents, dir - dents, 0, inode_bits); |
1495 |
|
|
} |
1496 |
root |
1.31 |
|
1497 |
root |
1.103 |
break; |
1498 |
|
|
} |
1499 |
root |
1.31 |
|
1500 |
root |
1.103 |
/* now add the entry to our list(s) */ |
1501 |
|
|
name = D_NAME (entp); |
1502 |
root |
1.1 |
|
1503 |
root |
1.103 |
/* skip . and .. entries */ |
1504 |
|
|
if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
1505 |
|
|
{ |
1506 |
|
|
int len = D_NAMLEN (entp) + 1; |
1507 |
root |
1.1 |
|
1508 |
root |
1.103 |
while (ecb_expect_false (namesoffs + len > namesalloc)) |
1509 |
|
|
{ |
1510 |
|
|
namesalloc *= 2; |
1511 |
|
|
req->ptr2 = names = realloc (names, namesalloc); |
1512 |
root |
1.1 |
|
1513 |
root |
1.103 |
if (!names) |
1514 |
|
|
break; |
1515 |
|
|
} |
1516 |
root |
1.1 |
|
1517 |
root |
1.103 |
memcpy (names + namesoffs, name, len); |
1518 |
root |
1.1 |
|
1519 |
root |
1.103 |
if (dents) |
1520 |
|
|
{ |
1521 |
|
|
struct eio_dirent *ent; |
1522 |
root |
1.31 |
|
1523 |
root |
1.103 |
if (ecb_expect_false (dentoffs == dentalloc)) |
1524 |
|
|
{ |
1525 |
|
|
dentalloc *= 2; |
1526 |
|
|
req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
1527 |
root |
1.31 |
|
1528 |
root |
1.103 |
if (!dents) |
1529 |
|
|
break; |
1530 |
|
|
} |
1531 |
root |
1.31 |
|
1532 |
root |
1.103 |
ent = dents + dentoffs; |
1533 |
root |
1.31 |
|
1534 |
root |
1.103 |
ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */ |
1535 |
|
|
ent->namelen = len - 1; |
1536 |
|
|
ent->inode = D_INO (entp); |
1537 |
root |
1.31 |
|
1538 |
root |
1.103 |
inode_bits |= ent->inode; |
1539 |
root |
1.42 |
|
1540 |
root |
1.103 |
switch (D_TYPE (entp)) |
1541 |
|
|
{ |
1542 |
|
|
default: |
1543 |
|
|
ent->type = EIO_DT_UNKNOWN; |
1544 |
|
|
flags |= EIO_READDIR_FOUND_UNKNOWN; |
1545 |
|
|
break; |
1546 |
|
|
|
1547 |
|
|
#ifdef DT_FIFO |
1548 |
|
|
case DT_FIFO: ent->type = EIO_DT_FIFO; break; |
1549 |
|
|
#endif |
1550 |
|
|
#ifdef DT_CHR |
1551 |
|
|
case DT_CHR: ent->type = EIO_DT_CHR; break; |
1552 |
root |
1.123 |
#endif |
1553 |
root |
1.103 |
#ifdef DT_MPC |
1554 |
|
|
case DT_MPC: ent->type = EIO_DT_MPC; break; |
1555 |
root |
1.123 |
#endif |
1556 |
root |
1.103 |
#ifdef DT_DIR |
1557 |
|
|
case DT_DIR: ent->type = EIO_DT_DIR; break; |
1558 |
root |
1.123 |
#endif |
1559 |
root |
1.103 |
#ifdef DT_NAM |
1560 |
|
|
case DT_NAM: ent->type = EIO_DT_NAM; break; |
1561 |
root |
1.123 |
#endif |
1562 |
root |
1.103 |
#ifdef DT_BLK |
1563 |
|
|
case DT_BLK: ent->type = EIO_DT_BLK; break; |
1564 |
root |
1.123 |
#endif |
1565 |
root |
1.103 |
#ifdef DT_MPB |
1566 |
|
|
case DT_MPB: ent->type = EIO_DT_MPB; break; |
1567 |
root |
1.123 |
#endif |
1568 |
root |
1.103 |
#ifdef DT_REG |
1569 |
|
|
case DT_REG: ent->type = EIO_DT_REG; break; |
1570 |
root |
1.123 |
#endif |
1571 |
root |
1.103 |
#ifdef DT_NWK |
1572 |
|
|
case DT_NWK: ent->type = EIO_DT_NWK; break; |
1573 |
root |
1.123 |
#endif |
1574 |
root |
1.103 |
#ifdef DT_CMP |
1575 |
|
|
case DT_CMP: ent->type = EIO_DT_CMP; break; |
1576 |
root |
1.123 |
#endif |
1577 |
root |
1.103 |
#ifdef DT_LNK |
1578 |
|
|
case DT_LNK: ent->type = EIO_DT_LNK; break; |
1579 |
|
|
#endif |
1580 |
|
|
#ifdef DT_SOCK |
1581 |
|
|
case DT_SOCK: ent->type = EIO_DT_SOCK; break; |
1582 |
|
|
#endif |
1583 |
|
|
#ifdef DT_DOOR |
1584 |
|
|
case DT_DOOR: ent->type = EIO_DT_DOOR; break; |
1585 |
|
|
#endif |
1586 |
|
|
#ifdef DT_WHT |
1587 |
|
|
case DT_WHT: ent->type = EIO_DT_WHT; break; |
1588 |
|
|
#endif |
1589 |
|
|
} |
1590 |
root |
1.31 |
|
1591 |
root |
1.103 |
ent->score = 7; |
1592 |
root |
1.31 |
|
1593 |
root |
1.103 |
if (flags & EIO_READDIR_DIRS_FIRST) |
1594 |
|
|
{ |
1595 |
|
|
if (ent->type == EIO_DT_UNKNOWN) |
1596 |
|
|
{ |
1597 |
|
|
if (*name == '.') /* leading dots are likely directories, and, in any case, rare */ |
1598 |
|
|
ent->score = 1; |
1599 |
root |
1.114 |
else if (!strchr (name, '.')) /* absence of dots indicate likely dirs */ |
1600 |
root |
1.103 |
ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */ |
1601 |
|
|
} |
1602 |
|
|
else if (ent->type == EIO_DT_DIR) |
1603 |
|
|
ent->score = 0; |
1604 |
|
|
} |
1605 |
|
|
} |
1606 |
root |
1.31 |
|
1607 |
root |
1.103 |
namesoffs += len; |
1608 |
|
|
++dentoffs; |
1609 |
|
|
} |
1610 |
root |
1.31 |
|
1611 |
root |
1.103 |
if (EIO_CANCELLED (req)) |
1612 |
|
|
{ |
1613 |
|
|
errno = ECANCELED; |
1614 |
|
|
break; |
1615 |
|
|
} |
1616 |
root |
1.91 |
|
1617 |
|
|
#ifdef _WIN32 |
1618 |
root |
1.103 |
if (!FindNextFile (dirp, &entp)) |
1619 |
|
|
{ |
1620 |
|
|
FindClose (dirp); |
1621 |
|
|
dirp = 0; |
1622 |
|
|
} |
1623 |
root |
1.91 |
#endif |
1624 |
root |
1.103 |
} |
1625 |
root |
1.1 |
} |
1626 |
|
|
|
1627 |
|
|
/*****************************************************************************/ |
1628 |
root |
1.104 |
/* working directory stuff */ |
1629 |
root |
1.107 |
/* various deficiencies in the posix 2008 api force us to */ |
1630 |
|
|
/* keep the absolute path in string form at all times */ |
1631 |
|
|
/* fuck yeah. */ |
1632 |
|
|
|
1633 |
|
|
#if !HAVE_AT |
1634 |
|
|
|
1635 |
|
|
/* a bit like realpath, but usually faster because it doesn'T have to return */ |
1636 |
|
|
/* an absolute or canonical path */ |
1637 |
|
|
static const char * |
1638 |
root |
1.134 |
wd_expand (struct etp_tmpbuf *tmpbuf, eio_wd wd, const char *path) |
1639 |
root |
1.107 |
{ |
1640 |
|
|
if (!wd || *path == '/') |
1641 |
|
|
return path; |
1642 |
|
|
|
1643 |
|
|
if (path [0] == '.' && !path [1]) |
1644 |
|
|
return wd->str; |
1645 |
|
|
|
1646 |
|
|
{ |
1647 |
|
|
int l1 = wd->len; |
1648 |
|
|
int l2 = strlen (path); |
1649 |
|
|
|
1650 |
root |
1.134 |
char *res = etp_tmpbuf_get (tmpbuf, l1 + l2 + 2); |
1651 |
root |
1.107 |
|
1652 |
|
|
memcpy (res, wd->str, l1); |
1653 |
|
|
res [l1] = '/'; |
1654 |
|
|
memcpy (res + l1 + 1, path, l2 + 1); |
1655 |
|
|
|
1656 |
|
|
return res; |
1657 |
|
|
} |
1658 |
|
|
} |
1659 |
|
|
|
1660 |
|
|
#endif |
1661 |
|
|
|
1662 |
|
|
static eio_wd |
1663 |
root |
1.134 |
eio__wd_open_sync (struct etp_tmpbuf *tmpbuf, eio_wd wd, const char *path) |
1664 |
root |
1.107 |
{ |
1665 |
|
|
int fd; |
1666 |
|
|
eio_wd res; |
1667 |
|
|
int len = eio__realpath (tmpbuf, wd, path); |
1668 |
|
|
|
1669 |
|
|
if (len < 0) |
1670 |
|
|
return EIO_INVALID_WD; |
1671 |
root |
1.104 |
|
1672 |
|
|
#if HAVE_AT |
1673 |
root |
1.154 |
fd = openat (WD2FD (wd), path, O_CLOEXEC | O_SEARCH | O_DIRECTORY | O_NONBLOCK); |
1674 |
root |
1.107 |
|
1675 |
|
|
if (fd < 0) |
1676 |
|
|
return EIO_INVALID_WD; |
1677 |
|
|
#endif |
1678 |
root |
1.104 |
|
1679 |
root |
1.107 |
res = malloc (sizeof (*res) + len); /* one extra 0-byte */ |
1680 |
root |
1.105 |
|
1681 |
root |
1.107 |
#if HAVE_AT |
1682 |
|
|
res->fd = fd; |
1683 |
root |
1.105 |
#endif |
1684 |
root |
1.104 |
|
1685 |
root |
1.107 |
res->len = len; |
1686 |
|
|
memcpy (res->str, tmpbuf->ptr, len); |
1687 |
|
|
res->str [len] = 0; |
1688 |
|
|
|
1689 |
|
|
return res; |
1690 |
|
|
} |
1691 |
|
|
|
1692 |
root |
1.104 |
eio_wd |
1693 |
|
|
eio_wd_open_sync (eio_wd wd, const char *path) |
1694 |
|
|
{ |
1695 |
root |
1.151 |
struct etp_tmpbuf tmpbuf = { 0 }; |
1696 |
root |
1.107 |
wd = eio__wd_open_sync (&tmpbuf, wd, path); |
1697 |
|
|
free (tmpbuf.ptr); |
1698 |
root |
1.104 |
|
1699 |
root |
1.107 |
return wd; |
1700 |
root |
1.105 |
} |
1701 |
|
|
|
1702 |
root |
1.107 |
void |
1703 |
|
|
eio_wd_close_sync (eio_wd wd) |
1704 |
root |
1.105 |
{ |
1705 |
root |
1.107 |
if (wd != EIO_INVALID_WD && wd != EIO_CWD) |
1706 |
|
|
{ |
1707 |
|
|
#if HAVE_AT |
1708 |
root |
1.146 |
eio__close (wd->fd); |
1709 |
root |
1.107 |
#endif |
1710 |
|
|
free (wd); |
1711 |
|
|
} |
1712 |
root |
1.104 |
} |
1713 |
|
|
|
1714 |
root |
1.107 |
#if HAVE_AT |
1715 |
root |
1.104 |
|
1716 |
root |
1.145 |
static int |
1717 |
|
|
eio__renameat2 (int olddirfd, const char *oldpath, int newdirfd, const char *newpath, unsigned int flags) |
1718 |
|
|
{ |
1719 |
|
|
#if HAVE_RENAMEAT2 |
1720 |
|
|
return syscall (SYS_renameat2, olddirfd, oldpath, newdirfd, newpath, flags); |
1721 |
|
|
#else |
1722 |
|
|
if (flags) |
1723 |
|
|
return EIO_ENOSYS (); |
1724 |
|
|
|
1725 |
|
|
return renameat (olddirfd, oldpath, newdirfd, newpath); |
1726 |
|
|
#endif |
1727 |
|
|
} |
1728 |
|
|
|
1729 |
root |
1.107 |
/* they forgot these */ |
1730 |
root |
1.104 |
|
1731 |
root |
1.105 |
static int |
1732 |
|
|
eio__truncateat (int dirfd, const char *path, off_t length) |
1733 |
|
|
{ |
1734 |
root |
1.154 |
int fd = openat (dirfd, path, O_WRONLY | O_CLOEXEC | O_NONBLOCK); |
1735 |
root |
1.105 |
int res; |
1736 |
|
|
|
1737 |
|
|
if (fd < 0) |
1738 |
|
|
return fd; |
1739 |
|
|
|
1740 |
|
|
res = ftruncate (fd, length); |
1741 |
root |
1.146 |
silent_close (fd); |
1742 |
root |
1.105 |
return res; |
1743 |
|
|
} |
1744 |
|
|
|
1745 |
|
|
static int |
1746 |
|
|
eio__statvfsat (int dirfd, const char *path, struct statvfs *buf) |
1747 |
|
|
{ |
1748 |
root |
1.154 |
int fd = openat (dirfd, path, O_SEARCH | O_CLOEXEC | O_NONBLOCK); |
1749 |
root |
1.105 |
int res; |
1750 |
|
|
|
1751 |
|
|
if (fd < 0) |
1752 |
|
|
return fd; |
1753 |
|
|
|
1754 |
|
|
res = fstatvfs (fd, buf); |
1755 |
root |
1.146 |
silent_close (fd); |
1756 |
root |
1.105 |
return res; |
1757 |
|
|
} |
1758 |
|
|
|
1759 |
root |
1.104 |
#endif |
1760 |
|
|
|
1761 |
|
|
/*****************************************************************************/ |
1762 |
root |
1.1 |
|
1763 |
root |
1.6 |
#define ALLOC(len) \ |
1764 |
|
|
if (!req->ptr2) \ |
1765 |
|
|
{ \ |
1766 |
root |
1.138 |
X_LOCK (EIO_POOL->wrklock); \ |
1767 |
root |
1.7 |
req->flags |= EIO_FLAG_PTR2_FREE; \ |
1768 |
root |
1.138 |
X_UNLOCK (EIO_POOL->wrklock); \ |
1769 |
root |
1.7 |
req->ptr2 = malloc (len); \ |
1770 |
|
|
if (!req->ptr2) \ |
1771 |
|
|
{ \ |
1772 |
|
|
errno = ENOMEM; \ |
1773 |
|
|
req->result = -1; \ |
1774 |
root |
1.146 |
goto alloc_fail; \ |
1775 |
root |
1.7 |
} \ |
1776 |
root |
1.6 |
} |
1777 |
|
|
|
1778 |
root |
1.1 |
/*****************************************************************************/ |
1779 |
|
|
|
1780 |
root |
1.146 |
static void |
1781 |
|
|
eio__slurp (int fd, eio_req *req) |
1782 |
|
|
{ |
1783 |
|
|
req->result = fd; |
1784 |
|
|
|
1785 |
|
|
if (fd < 0) |
1786 |
|
|
return; |
1787 |
|
|
|
1788 |
|
|
if (req->offs < 0 || !req->size) /* do we need the size? */ |
1789 |
|
|
{ |
1790 |
|
|
off_t size = lseek (fd, 0, SEEK_END); |
1791 |
|
|
|
1792 |
|
|
if (req->offs < 0) |
1793 |
|
|
req->offs += size; |
1794 |
|
|
|
1795 |
|
|
if (!req->size) |
1796 |
|
|
req->size = size - req->offs; |
1797 |
|
|
} |
1798 |
|
|
|
1799 |
|
|
ALLOC (req->size); |
1800 |
|
|
req->result = pread (fd, req->ptr2, req->size, req->offs); |
1801 |
|
|
|
1802 |
|
|
silent_close (fd); |
1803 |
|
|
|
1804 |
|
|
alloc_fail: |
1805 |
|
|
; |
1806 |
|
|
} |
1807 |
|
|
|
1808 |
root |
1.72 |
int ecb_cold |
1809 |
|
|
eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1810 |
root |
1.1 |
{ |
1811 |
root |
1.138 |
eio_want_poll_cb = want_poll; |
1812 |
|
|
eio_done_poll_cb = done_poll; |
1813 |
|
|
|
1814 |
root |
1.139 |
return etp_init (EIO_POOL, 0, 0, 0); |
1815 |
root |
1.1 |
} |
1816 |
|
|
|
1817 |
root |
1.73 |
ecb_inline void |
1818 |
root |
1.72 |
eio_api_destroy (eio_req *req) |
1819 |
root |
1.6 |
{ |
1820 |
|
|
free (req); |
1821 |
|
|
} |
1822 |
|
|
|
1823 |
root |
1.121 |
#define REQ(rtype) \ |
1824 |
root |
1.6 |
eio_req *req; \ |
1825 |
|
|
\ |
1826 |
|
|
req = (eio_req *)calloc (1, sizeof *req); \ |
1827 |
|
|
if (!req) \ |
1828 |
|
|
return 0; \ |
1829 |
|
|
\ |
1830 |
root |
1.11 |
req->type = rtype; \ |
1831 |
|
|
req->pri = pri; \ |
1832 |
|
|
req->finish = cb; \ |
1833 |
|
|
req->data = data; \ |
1834 |
root |
1.6 |
req->destroy = eio_api_destroy; |
1835 |
|
|
|
1836 |
|
|
#define SEND eio_submit (req); return req |
1837 |
|
|
|
1838 |
root |
1.9 |
#define PATH \ |
1839 |
|
|
req->flags |= EIO_FLAG_PTR1_FREE; \ |
1840 |
|
|
req->ptr1 = strdup (path); \ |
1841 |
|
|
if (!req->ptr1) \ |
1842 |
|
|
{ \ |
1843 |
|
|
eio_api_destroy (req); \ |
1844 |
|
|
return 0; \ |
1845 |
|
|
} |
1846 |
|
|
|
1847 |
root |
1.126 |
#define SINGLEDOT(ptr) (0[(char *)(ptr)] == '.' && !1[(char *)(ptr)]) |
1848 |
|
|
|
1849 |
root |
1.72 |
static void |
1850 |
|
|
eio_execute (etp_worker *self, eio_req *req) |
1851 |
root |
1.15 |
{ |
1852 |
root |
1.104 |
#if HAVE_AT |
1853 |
|
|
int dirfd; |
1854 |
|
|
#else |
1855 |
|
|
const char *path; |
1856 |
|
|
#endif |
1857 |
|
|
|
1858 |
root |
1.80 |
if (ecb_expect_false (EIO_CANCELLED (req))) |
1859 |
|
|
{ |
1860 |
|
|
req->result = -1; |
1861 |
|
|
req->errorno = ECANCELED; |
1862 |
|
|
return; |
1863 |
|
|
} |
1864 |
|
|
|
1865 |
root |
1.104 |
if (ecb_expect_false (req->wd == EIO_INVALID_WD)) |
1866 |
|
|
{ |
1867 |
|
|
req->result = -1; |
1868 |
|
|
req->errorno = ENOENT; |
1869 |
|
|
return; |
1870 |
|
|
} |
1871 |
|
|
|
1872 |
|
|
if (req->type >= EIO_OPEN) |
1873 |
|
|
{ |
1874 |
|
|
#if HAVE_AT |
1875 |
|
|
dirfd = WD2FD (req->wd); |
1876 |
|
|
#else |
1877 |
|
|
path = wd_expand (&self->tmpbuf, req->wd, req->ptr1); |
1878 |
|
|
#endif |
1879 |
|
|
} |
1880 |
|
|
|
1881 |
root |
1.15 |
switch (req->type) |
1882 |
|
|
{ |
1883 |
root |
1.104 |
case EIO_WD_OPEN: req->wd = eio__wd_open_sync (&self->tmpbuf, req->wd, req->ptr1); |
1884 |
|
|
req->result = req->wd == EIO_INVALID_WD ? -1 : 0; |
1885 |
|
|
break; |
1886 |
root |
1.106 |
case EIO_WD_CLOSE: req->result = 0; |
1887 |
|
|
eio_wd_close_sync (req->wd); break; |
1888 |
root |
1.104 |
|
1889 |
root |
1.117 |
case EIO_SEEK: eio__lseek (req); break; |
1890 |
root |
1.15 |
case EIO_READ: ALLOC (req->size); |
1891 |
|
|
req->result = req->offs >= 0 |
1892 |
|
|
? pread (req->int1, req->ptr2, req->size, req->offs) |
1893 |
|
|
: read (req->int1, req->ptr2, req->size); break; |
1894 |
|
|
case EIO_WRITE: req->result = req->offs >= 0 |
1895 |
|
|
? pwrite (req->int1, req->ptr2, req->size, req->offs) |
1896 |
|
|
: write (req->int1, req->ptr2, req->size); break; |
1897 |
|
|
|
1898 |
root |
1.140 |
case EIO_FCNTL: req->result = fcntl (req->int1, (int) req->int2, req->ptr2); break; |
1899 |
|
|
case EIO_IOCTL: req->result = ioctl (req->int1, (unsigned long)req->int2, req->ptr2); break; |
1900 |
|
|
|
1901 |
root |
1.15 |
case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
1902 |
root |
1.94 |
case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break; |
1903 |
root |
1.15 |
|
1904 |
root |
1.104 |
#if HAVE_AT |
1905 |
root |
1.106 |
|
1906 |
root |
1.15 |
case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1907 |
root |
1.105 |
req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, 0); break; |
1908 |
root |
1.15 |
case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1909 |
root |
1.105 |
req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break; |
1910 |
|
|
case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break; |
1911 |
|
|
case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break; |
1912 |
|
|
case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break; |
1913 |
|
|
case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break; |
1914 |
root |
1.146 |
case EIO_SLURP: eio__slurp ( openat (dirfd, req->ptr1, O_RDONLY | O_CLOEXEC), req); break; |
1915 |
root |
1.105 |
|
1916 |
|
|
case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break; |
1917 |
root |
1.126 |
case EIO_RMDIR: /* complications arise because "." cannot be removed, so we might have to expand */ |
1918 |
|
|
req->result = req->wd && SINGLEDOT (req->ptr1) |
1919 |
|
|
? rmdir (req->wd->str) |
1920 |
|
|
: unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break; |
1921 |
root |
1.105 |
case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break; |
1922 |
root |
1.145 |
case EIO_RENAME: req->result = eio__renameat2 ( |
1923 |
|
|
dirfd, |
1924 |
|
|
/* complications arise because "." cannot be renamed, so we might have to expand */ |
1925 |
|
|
req->wd && SINGLEDOT (req->ptr1) ? req->wd->str : req->ptr1, |
1926 |
|
|
WD2FD ((eio_wd)req->int3), |
1927 |
|
|
req->ptr2, |
1928 |
|
|
req->int2 |
1929 |
|
|
); |
1930 |
|
|
break; |
1931 |
root |
1.107 |
case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2, 0); break; |
1932 |
root |
1.105 |
case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break; |
1933 |
|
|
case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
1934 |
root |
1.104 |
case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
1935 |
root |
1.105 |
req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
1936 |
root |
1.144 |
case EIO_READLINK: ALLOC (EIO_PATH_MAX); |
1937 |
|
|
req->result = readlinkat (dirfd, req->ptr1, req->ptr2, EIO_PATH_MAX); |
1938 |
|
|
if (req->result == EIO_PATH_MAX) |
1939 |
|
|
{ |
1940 |
|
|
req->result = -1; |
1941 |
|
|
errno = ENAMETOOLONG; |
1942 |
|
|
} |
1943 |
|
|
break; |
1944 |
root |
1.106 |
case EIO_UTIME: |
1945 |
|
|
case EIO_FUTIME: |
1946 |
|
|
{ |
1947 |
|
|
struct timespec ts[2]; |
1948 |
|
|
struct timespec *times; |
1949 |
|
|
|
1950 |
|
|
if (req->nv1 != -1. || req->nv2 != -1.) |
1951 |
|
|
{ |
1952 |
|
|
ts[0].tv_sec = req->nv1; |
1953 |
|
|
ts[0].tv_nsec = (req->nv1 - ts[0].tv_sec) * 1e9; |
1954 |
|
|
ts[1].tv_sec = req->nv2; |
1955 |
|
|
ts[1].tv_nsec = (req->nv2 - ts[1].tv_sec) * 1e9; |
1956 |
|
|
|
1957 |
|
|
times = ts; |
1958 |
|
|
} |
1959 |
|
|
else |
1960 |
|
|
times = 0; |
1961 |
|
|
|
1962 |
|
|
req->result = req->type == EIO_FUTIME |
1963 |
|
|
? futimens (req->int1, times) |
1964 |
|
|
: utimensat (dirfd, req->ptr1, times, 0); |
1965 |
|
|
} |
1966 |
|
|
break; |
1967 |
|
|
|
1968 |
root |
1.104 |
#else |
1969 |
root |
1.106 |
|
1970 |
root |
1.104 |
case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1971 |
|
|
req->result = stat (path , (EIO_STRUCT_STAT *)req->ptr2); break; |
1972 |
|
|
case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1973 |
|
|
req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break; |
1974 |
|
|
case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break; |
1975 |
|
|
case EIO_CHMOD: req->result = chmod (path , (mode_t)req->int2); break; |
1976 |
|
|
case EIO_TRUNCATE: req->result = truncate (path , req->offs); break; |
1977 |
|
|
case EIO_OPEN: req->result = open (path , req->int1, (mode_t)req->int2); break; |
1978 |
root |
1.146 |
case EIO_SLURP: eio__slurp ( open (path , O_RDONLY | O_CLOEXEC), req); break; |
1979 |
root |
1.104 |
|
1980 |
|
|
case EIO_UNLINK: req->result = unlink (path ); break; |
1981 |
|
|
case EIO_RMDIR: req->result = rmdir (path ); break; |
1982 |
|
|
case EIO_MKDIR: req->result = mkdir (path , (mode_t)req->int2); break; |
1983 |
root |
1.145 |
case EIO_RENAME: req->result = req->int2 ? EIO_ENOSYS () : rename (path, req->ptr2); break; |
1984 |
root |
1.104 |
case EIO_LINK: req->result = link (path , req->ptr2); break; |
1985 |
|
|
case EIO_SYMLINK: req->result = symlink (path , req->ptr2); break; |
1986 |
|
|
case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break; |
1987 |
root |
1.105 |
case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
1988 |
|
|
req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break; |
1989 |
root |
1.144 |
case EIO_READLINK: ALLOC (EIO_PATH_MAX); |
1990 |
|
|
req->result = readlink (path, req->ptr2, EIO_PATH_MAX); |
1991 |
|
|
if (req->result == EIO_PATH_MAX) |
1992 |
|
|
{ |
1993 |
|
|
req->result = -1; |
1994 |
|
|
errno = ENAMETOOLONG; |
1995 |
|
|
} |
1996 |
|
|
break; |
1997 |
root |
1.106 |
|
1998 |
|
|
case EIO_UTIME: |
1999 |
|
|
case EIO_FUTIME: |
2000 |
|
|
{ |
2001 |
|
|
struct timeval tv[2]; |
2002 |
|
|
struct timeval *times; |
2003 |
|
|
|
2004 |
|
|
if (req->nv1 != -1. || req->nv2 != -1.) |
2005 |
|
|
{ |
2006 |
|
|
tv[0].tv_sec = req->nv1; |
2007 |
|
|
tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1e6; |
2008 |
|
|
tv[1].tv_sec = req->nv2; |
2009 |
|
|
tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1e6; |
2010 |
|
|
|
2011 |
|
|
times = tv; |
2012 |
|
|
} |
2013 |
|
|
else |
2014 |
|
|
times = 0; |
2015 |
|
|
|
2016 |
|
|
req->result = req->type == EIO_FUTIME |
2017 |
|
|
? futimes (req->int1, times) |
2018 |
|
|
: utimes (req->ptr1, times); |
2019 |
|
|
} |
2020 |
|
|
break; |
2021 |
|
|
|
2022 |
root |
1.104 |
#endif |
2023 |
|
|
|
2024 |
|
|
case EIO_REALPATH: if (0 <= (req->result = eio__realpath (&self->tmpbuf, req->wd, req->ptr1))) |
2025 |
|
|
{ |
2026 |
|
|
ALLOC (req->result); |
2027 |
|
|
memcpy (req->ptr2, self->tmpbuf.ptr, req->result); |
2028 |
|
|
} |
2029 |
|
|
break; |
2030 |
|
|
|
2031 |
root |
1.15 |
case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
2032 |
|
|
req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; |
2033 |
|
|
|
2034 |
root |
1.51 |
case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
2035 |
|
|
req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
2036 |
|
|
|
2037 |
root |
1.15 |
case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
2038 |
|
|
case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
2039 |
|
|
case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
2040 |
|
|
|
2041 |
root |
1.146 |
case EIO_CLOSE: req->result = eio__close (req->int1); break; |
2042 |
root |
1.15 |
case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
2043 |
|
|
case EIO_SYNC: req->result = 0; sync (); break; |
2044 |
|
|
case EIO_FSYNC: req->result = fsync (req->int1); break; |
2045 |
|
|
case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
2046 |
root |
1.97 |
case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break; |
2047 |
|
|
case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
2048 |
root |
1.48 |
case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
2049 |
root |
1.67 |
case EIO_MTOUCH: req->result = eio__mtouch (req); break; |
2050 |
root |
1.56 |
case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
2051 |
|
|
case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
2052 |
root |
1.83 |
case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break; |
2053 |
root |
1.15 |
|
2054 |
root |
1.107 |
case EIO_READDIR: eio__scandir (req, self); break; |
2055 |
root |
1.15 |
|
2056 |
|
|
case EIO_BUSY: |
2057 |
|
|
#ifdef _WIN32 |
2058 |
root |
1.57 |
Sleep (req->nv1 * 1e3); |
2059 |
root |
1.15 |
#else |
2060 |
|
|
{ |
2061 |
|
|
struct timeval tv; |
2062 |
|
|
|
2063 |
|
|
tv.tv_sec = req->nv1; |
2064 |
root |
1.57 |
tv.tv_usec = (req->nv1 - tv.tv_sec) * 1e6; |
2065 |
root |
1.15 |
|
2066 |
|
|
req->result = select (0, 0, 0, 0, &tv); |
2067 |
|
|
} |
2068 |
|
|
#endif |
2069 |
|
|
break; |
2070 |
|
|
|
2071 |
root |
1.135 |
#if 0 |
2072 |
root |
1.15 |
case EIO_GROUP: |
2073 |
root |
1.24 |
abort (); /* handled in eio_request */ |
2074 |
root |
1.135 |
#endif |
2075 |
root |
1.24 |
|
2076 |
root |
1.15 |
case EIO_NOP: |
2077 |
|
|
req->result = 0; |
2078 |
|
|
break; |
2079 |
|
|
|
2080 |
|
|
case EIO_CUSTOM: |
2081 |
root |
1.68 |
req->feed (req); |
2082 |
root |
1.15 |
break; |
2083 |
|
|
|
2084 |
|
|
default: |
2085 |
root |
1.119 |
req->result = EIO_ENOSYS (); |
2086 |
root |
1.15 |
break; |
2087 |
|
|
} |
2088 |
|
|
|
2089 |
root |
1.146 |
alloc_fail: |
2090 |
root |
1.15 |
req->errorno = errno; |
2091 |
|
|
} |
2092 |
|
|
|
2093 |
root |
1.12 |
#ifndef EIO_NO_WRAPPERS |
2094 |
|
|
|
2095 |
root |
1.110 |
eio_req *eio_wd_open (const char *path, int pri, eio_cb cb, void *data) |
2096 |
|
|
{ |
2097 |
|
|
REQ (EIO_WD_OPEN); PATH; SEND; |
2098 |
|
|
} |
2099 |
|
|
|
2100 |
|
|
eio_req *eio_wd_close (eio_wd wd, int pri, eio_cb cb, void *data) |
2101 |
|
|
{ |
2102 |
|
|
REQ (EIO_WD_CLOSE); req->wd = wd; SEND; |
2103 |
|
|
} |
2104 |
|
|
|
2105 |
root |
1.10 |
eio_req *eio_nop (int pri, eio_cb cb, void *data) |
2106 |
root |
1.9 |
{ |
2107 |
|
|
REQ (EIO_NOP); SEND; |
2108 |
|
|
} |
2109 |
|
|
|
2110 |
root |
1.10 |
eio_req *eio_busy (double delay, int pri, eio_cb cb, void *data) |
2111 |
root |
1.9 |
{ |
2112 |
|
|
REQ (EIO_BUSY); req->nv1 = delay; SEND; |
2113 |
|
|
} |
2114 |
|
|
|
2115 |
root |
1.10 |
eio_req *eio_sync (int pri, eio_cb cb, void *data) |
2116 |
root |
1.9 |
{ |
2117 |
|
|
REQ (EIO_SYNC); SEND; |
2118 |
|
|
} |
2119 |
root |
1.6 |
|
2120 |
root |
1.10 |
eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data) |
2121 |
root |
1.6 |
{ |
2122 |
root |
1.9 |
REQ (EIO_FSYNC); req->int1 = fd; SEND; |
2123 |
root |
1.6 |
} |
2124 |
|
|
|
2125 |
root |
1.23 |
eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
2126 |
|
|
{ |
2127 |
|
|
REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
2128 |
|
|
} |
2129 |
|
|
|
2130 |
root |
1.97 |
eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
2131 |
|
|
{ |
2132 |
|
|
REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
2133 |
|
|
} |
2134 |
|
|
|
2135 |
|
|
eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data) |
2136 |
|
|
{ |
2137 |
|
|
REQ (EIO_SYNCFS); req->int1 = fd; SEND; |
2138 |
|
|
} |
2139 |
|
|
|
2140 |
|
|
eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
2141 |
|
|
{ |
2142 |
|
|
REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
2143 |
|
|
} |
2144 |
|
|
|
2145 |
root |
1.23 |
eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
2146 |
|
|
{ |
2147 |
|
|
REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
2148 |
|
|
} |
2149 |
|
|
|
2150 |
root |
1.56 |
eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data) |
2151 |
|
|
{ |
2152 |
|
|
REQ (EIO_MLOCK); req->ptr2 = addr; req->size = length; SEND; |
2153 |
|
|
} |
2154 |
|
|
|
2155 |
|
|
eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data) |
2156 |
|
|
{ |
2157 |
|
|
REQ (EIO_MLOCKALL); req->int1 = flags; SEND; |
2158 |
|
|
} |
2159 |
|
|
|
2160 |
root |
1.83 |
eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data) |
2161 |
|
|
{ |
2162 |
|
|
REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND; |
2163 |
|
|
} |
2164 |
|
|
|
2165 |
root |
1.10 |
eio_req *eio_close (int fd, int pri, eio_cb cb, void *data) |
2166 |
root |
1.9 |
{ |
2167 |
|
|
REQ (EIO_CLOSE); req->int1 = fd; SEND; |
2168 |
root |
1.6 |
} |
2169 |
|
|
|
2170 |
root |
1.10 |
eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data) |
2171 |
root |
1.6 |
{ |
2172 |
root |
1.9 |
REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND; |
2173 |
root |
1.6 |
} |
2174 |
|
|
|
2175 |
root |
1.117 |
eio_req *eio_seek (int fd, off_t offset, int whence, int pri, eio_cb cb, void *data) |
2176 |
|
|
{ |
2177 |
|
|
REQ (EIO_SEEK); req->int1 = fd; req->offs = offset; req->int2 = whence; SEND; |
2178 |
|
|
} |
2179 |
|
|
|
2180 |
root |
1.10 |
eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
2181 |
root |
1.6 |
{ |
2182 |
root |
1.10 |
REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
2183 |
root |
1.6 |
} |
2184 |
|
|
|
2185 |
root |
1.10 |
eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
2186 |
root |
1.6 |
{ |
2187 |
root |
1.10 |
REQ (EIO_WRITE); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
2188 |
root |
1.6 |
} |
2189 |
|
|
|
2190 |
root |
1.140 |
eio_req *eio_fcntl (int fd, int cmd, void *arg, int pri, eio_cb cb, void *data) |
2191 |
|
|
{ |
2192 |
|
|
REQ (EIO_IOCTL); req->int1 = fd; req->int2 = cmd; req->ptr2 = arg; SEND; |
2193 |
|
|
} |
2194 |
|
|
|
2195 |
|
|
eio_req *eio_ioctl (int fd, unsigned long request, void *buf, int pri, eio_cb cb, void *data) |
2196 |
|
|
{ |
2197 |
|
|
REQ (EIO_IOCTL); req->int1 = fd; req->int2 = request; req->ptr2 = buf; SEND; |
2198 |
|
|
} |
2199 |
|
|
|
2200 |
root |
1.10 |
eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data) |
2201 |
root |
1.6 |
{ |
2202 |
root |
1.9 |
REQ (EIO_FSTAT); req->int1 = fd; SEND; |
2203 |
root |
1.6 |
} |
2204 |
|
|
|
2205 |
root |
1.51 |
eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data) |
2206 |
|
|
{ |
2207 |
|
|
REQ (EIO_FSTATVFS); req->int1 = fd; SEND; |
2208 |
|
|
} |
2209 |
|
|
|
2210 |
root |
1.10 |
eio_req *eio_futime (int fd, double atime, double mtime, int pri, eio_cb cb, void *data) |
2211 |
root |
1.6 |
{ |
2212 |
root |
1.9 |
REQ (EIO_FUTIME); req->int1 = fd; req->nv1 = atime; req->nv2 = mtime; SEND; |
2213 |
root |
1.6 |
} |
2214 |
|
|
|
2215 |
root |
1.10 |
eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data) |
2216 |
root |
1.6 |
{ |
2217 |
root |
1.9 |
REQ (EIO_FTRUNCATE); req->int1 = fd; req->offs = offset; SEND; |
2218 |
root |
1.6 |
} |
2219 |
|
|
|
2220 |
root |
1.10 |
eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data) |
2221 |
root |
1.6 |
{ |
2222 |
root |
1.9 |
REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND; |
2223 |
root |
1.6 |
} |
2224 |
|
|
|
2225 |
root |
1.88 |
eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data) |
2226 |
root |
1.6 |
{ |
2227 |
root |
1.9 |
REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
2228 |
root |
1.6 |
} |
2229 |
|
|
|
2230 |
root |
1.10 |
eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data) |
2231 |
root |
1.6 |
{ |
2232 |
root |
1.9 |
REQ (EIO_DUP2); req->int1 = fd; req->int2 = fd2; SEND; |
2233 |
root |
1.6 |
} |
2234 |
|
|
|
2235 |
root |
1.10 |
eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data) |
2236 |
root |
1.6 |
{ |
2237 |
root |
1.9 |
REQ (EIO_SENDFILE); req->int1 = out_fd; req->int2 = in_fd; req->offs = in_offset; req->size = length; SEND; |
2238 |
root |
1.6 |
} |
2239 |
|
|
|
2240 |
root |
1.10 |
eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data) |
2241 |
root |
1.6 |
{ |
2242 |
root |
1.9 |
REQ (EIO_OPEN); PATH; req->int1 = flags; req->int2 = (long)mode; SEND; |
2243 |
root |
1.6 |
} |
2244 |
|
|
|
2245 |
root |
1.10 |
eio_req *eio_utime (const char *path, double atime, double mtime, int pri, eio_cb cb, void *data) |
2246 |
root |
1.6 |
{ |
2247 |
root |
1.9 |
REQ (EIO_UTIME); PATH; req->nv1 = atime; req->nv2 = mtime; SEND; |
2248 |
root |
1.6 |
} |
2249 |
|
|
|
2250 |
root |
1.10 |
eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data) |
2251 |
root |
1.6 |
{ |
2252 |
root |
1.9 |
REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND; |
2253 |
root |
1.6 |
} |
2254 |
|
|
|
2255 |
root |
1.88 |
eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data) |
2256 |
root |
1.6 |
{ |
2257 |
root |
1.9 |
REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
2258 |
root |
1.6 |
} |
2259 |
|
|
|
2260 |
root |
1.10 |
eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data) |
2261 |
root |
1.6 |
{ |
2262 |
root |
1.9 |
REQ (EIO_CHMOD); PATH; req->int2 = (long)mode; SEND; |
2263 |
root |
1.6 |
} |
2264 |
|
|
|
2265 |
root |
1.10 |
eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data) |
2266 |
root |
1.6 |
{ |
2267 |
root |
1.9 |
REQ (EIO_MKDIR); PATH; req->int2 = (long)mode; SEND; |
2268 |
root |
1.6 |
} |
2269 |
|
|
|
2270 |
root |
1.9 |
static eio_req * |
2271 |
root |
1.10 |
eio__1path (int type, const char *path, int pri, eio_cb cb, void *data) |
2272 |
root |
1.6 |
{ |
2273 |
root |
1.9 |
REQ (type); PATH; SEND; |
2274 |
root |
1.6 |
} |
2275 |
|
|
|
2276 |
root |
1.10 |
eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data) |
2277 |
root |
1.6 |
{ |
2278 |
root |
1.10 |
return eio__1path (EIO_READLINK, path, pri, cb, data); |
2279 |
root |
1.6 |
} |
2280 |
|
|
|
2281 |
root |
1.76 |
eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data) |
2282 |
|
|
{ |
2283 |
|
|
return eio__1path (EIO_REALPATH, path, pri, cb, data); |
2284 |
|
|
} |
2285 |
|
|
|
2286 |
root |
1.10 |
eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data) |
2287 |
root |
1.6 |
{ |
2288 |
root |
1.10 |
return eio__1path (EIO_STAT, path, pri, cb, data); |
2289 |
root |
1.6 |
} |
2290 |
|
|
|
2291 |
root |
1.10 |
eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data) |
2292 |
root |
1.6 |
{ |
2293 |
root |
1.10 |
return eio__1path (EIO_LSTAT, path, pri, cb, data); |
2294 |
root |
1.6 |
} |
2295 |
|
|
|
2296 |
root |
1.51 |
eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data) |
2297 |
|
|
{ |
2298 |
|
|
return eio__1path (EIO_STATVFS, path, pri, cb, data); |
2299 |
|
|
} |
2300 |
|
|
|
2301 |
root |
1.10 |
eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data) |
2302 |
root |
1.6 |
{ |
2303 |
root |
1.10 |
return eio__1path (EIO_UNLINK, path, pri, cb, data); |
2304 |
root |
1.6 |
} |
2305 |
|
|
|
2306 |
root |
1.10 |
eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data) |
2307 |
root |
1.6 |
{ |
2308 |
root |
1.10 |
return eio__1path (EIO_RMDIR, path, pri, cb, data); |
2309 |
root |
1.6 |
} |
2310 |
|
|
|
2311 |
root |
1.31 |
eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data) |
2312 |
root |
1.1 |
{ |
2313 |
root |
1.31 |
REQ (EIO_READDIR); PATH; req->int1 = flags; SEND; |
2314 |
root |
1.1 |
} |
2315 |
|
|
|
2316 |
root |
1.10 |
eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data) |
2317 |
root |
1.1 |
{ |
2318 |
root |
1.61 |
REQ (EIO_MKNOD); PATH; req->int2 = (long)mode; req->offs = (off_t)dev; SEND; |
2319 |
root |
1.1 |
} |
2320 |
|
|
|
2321 |
root |
1.9 |
static eio_req * |
2322 |
root |
1.10 |
eio__2path (int type, const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2323 |
root |
1.1 |
{ |
2324 |
root |
1.9 |
REQ (type); PATH; |
2325 |
root |
1.1 |
|
2326 |
root |
1.9 |
req->flags |= EIO_FLAG_PTR2_FREE; |
2327 |
|
|
req->ptr2 = strdup (new_path); |
2328 |
|
|
if (!req->ptr2) |
2329 |
|
|
{ |
2330 |
|
|
eio_api_destroy (req); |
2331 |
|
|
return 0; |
2332 |
|
|
} |
2333 |
root |
1.1 |
|
2334 |
root |
1.9 |
SEND; |
2335 |
root |
1.1 |
} |
2336 |
|
|
|
2337 |
root |
1.10 |
eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2338 |
root |
1.1 |
{ |
2339 |
root |
1.10 |
return eio__2path (EIO_LINK, path, new_path, pri, cb, data); |
2340 |
root |
1.1 |
} |
2341 |
|
|
|
2342 |
root |
1.10 |
eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2343 |
root |
1.1 |
{ |
2344 |
root |
1.10 |
return eio__2path (EIO_SYMLINK, path, new_path, pri, cb, data); |
2345 |
root |
1.1 |
} |
2346 |
|
|
|
2347 |
root |
1.10 |
eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2348 |
root |
1.1 |
{ |
2349 |
root |
1.10 |
return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
2350 |
|
|
} |
2351 |
|
|
|
2352 |
root |
1.147 |
eio_req *eio_slurp (const char *path, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
2353 |
root |
1.146 |
{ |
2354 |
|
|
REQ (EIO_SLURP); PATH; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
2355 |
|
|
} |
2356 |
|
|
|
2357 |
root |
1.71 |
eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data) |
2358 |
root |
1.15 |
{ |
2359 |
root |
1.68 |
REQ (EIO_CUSTOM); req->feed = execute; SEND; |
2360 |
root |
1.15 |
} |
2361 |
|
|
|
2362 |
root |
1.12 |
#endif |
2363 |
|
|
|
2364 |
root |
1.10 |
eio_req *eio_grp (eio_cb cb, void *data) |
2365 |
|
|
{ |
2366 |
|
|
const int pri = EIO_PRI_MAX; |
2367 |
|
|
|
2368 |
|
|
REQ (EIO_GROUP); SEND; |
2369 |
root |
1.1 |
} |
2370 |
|
|
|
2371 |
root |
1.9 |
#undef REQ |
2372 |
|
|
#undef PATH |
2373 |
|
|
#undef SEND |
2374 |
root |
1.1 |
|
2375 |
root |
1.9 |
/*****************************************************************************/ |
2376 |
|
|
/* grp functions */ |
2377 |
root |
1.1 |
|
2378 |
root |
1.72 |
void |
2379 |
|
|
eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit) |
2380 |
root |
1.1 |
{ |
2381 |
|
|
grp->int2 = limit; |
2382 |
|
|
grp->feed = feed; |
2383 |
root |
1.2 |
|
2384 |
|
|
grp_try_feed (grp); |
2385 |
|
|
} |
2386 |
|
|
|
2387 |
root |
1.72 |
void |
2388 |
|
|
eio_grp_limit (eio_req *grp, int limit) |
2389 |
root |
1.2 |
{ |
2390 |
|
|
grp->int2 = limit; |
2391 |
|
|
|
2392 |
|
|
grp_try_feed (grp); |
2393 |
root |
1.1 |
} |
2394 |
|
|
|
2395 |
root |
1.72 |
void |
2396 |
|
|
eio_grp_add (eio_req *grp, eio_req *req) |
2397 |
root |
1.1 |
{ |
2398 |
|
|
assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2)); |
2399 |
|
|
|
2400 |
root |
1.136 |
grp->flags |= ETP_FLAG_GROUPADD; |
2401 |
root |
1.26 |
|
2402 |
root |
1.1 |
++grp->size; |
2403 |
|
|
req->grp = grp; |
2404 |
|
|
|
2405 |
|
|
req->grp_prev = 0; |
2406 |
|
|
req->grp_next = grp->grp_first; |
2407 |
|
|
|
2408 |
|
|
if (grp->grp_first) |
2409 |
|
|
grp->grp_first->grp_prev = req; |
2410 |
|
|
|
2411 |
|
|
grp->grp_first = req; |
2412 |
|
|
} |
2413 |
|
|
|
2414 |
root |
1.9 |
/*****************************************************************************/ |
2415 |
|
|
/* misc garbage */ |
2416 |
|
|
|
2417 |
root |
1.88 |
eio_ssize_t |
2418 |
root |
1.72 |
eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
2419 |
root |
1.9 |
{ |
2420 |
root |
1.94 |
return eio__sendfile (ofd, ifd, offset, count); |
2421 |
root |
1.9 |
} |
2422 |
root |
1.1 |
|