1 // Copyright (c) 2008 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/test/test_file_util.h" 6 7 #include <fcntl.h> 8 #include <sys/stat.h> 9 #include <sys/types.h> 10 11 #include "base/file_path.h" 12 13 namespace file_util { 14 EvictFileFromSystemCache(const FilePath & file)15bool EvictFileFromSystemCache(const FilePath& file) { 16 int fd = open(file.value().c_str(), O_RDONLY); 17 if (fd < 0) 18 return false; 19 if (fdatasync(fd) != 0) 20 return false; 21 if (posix_fadvise(fd, 0, 0, POSIX_FADV_DONTNEED) != 0) 22 return false; 23 close(fd); 24 return true; 25 } 26 27 } // namespace file_util 28