1 // Copyright (c) 2011 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 #include <unistd.h> 11 12 #include "base/files/file_path.h" 13 #include "base/files/scoped_file.h" 14 15 namespace base { 16 17 bool EvictFileFromSystemCache(const FilePath& file) { 18 ScopedFD fd(open(file.value().c_str(), O_RDONLY)); 19 if (!fd.is_valid()) 20 return false; 21 if (fdatasync(fd.get()) != 0) 22 return false; 23 if (posix_fadvise(fd.get(), 0, 0, POSIX_FADV_DONTNEED) != 0) 24 return false; 25 return true; 26 } 27 28 } // namespace base 29
