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. 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__) 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 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
