1 /*
2 * Copyright (C) 2014 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <fcntl.h>
30
31 #include "private/ErrnoRestorer.h"
32
33 extern "C" int __arm_fadvise64_64(int, int, off64_t, off64_t);
34 extern "C" int __fadvise64(int, off64_t, off64_t, int);
35
36 // No architecture actually has the 32-bit off_t system call.
posix_fadvise(int fd,off_t offset,off_t length,int advice)37 int posix_fadvise(int fd, off_t offset, off_t length, int advice) {
38 return posix_fadvise64(fd, offset, length, advice);
39 }
40
41 #if defined(__arm__)
posix_fadvise64(int fd,off64_t offset,off64_t length,int advice)42 int posix_fadvise64(int fd, off64_t offset, off64_t length, int advice) {
43 ErrnoRestorer errno_restorer;
44 return (__arm_fadvise64_64(fd, advice, offset, length) == 0) ? 0 : errno;
45 }
46 #else
posix_fadvise64(int fd,off64_t offset,off64_t length,int advice)47 int posix_fadvise64(int fd, off64_t offset, off64_t length, int advice) {
48 ErrnoRestorer errno_restorer;
49 return (__fadvise64(fd, offset, length, advice) == 0) ? 0 : errno;
50 }
51 #endif
52