29 lines
669 B
C++
29 lines
669 B
C++
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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/test/test_file_util.h"
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "base/files/file_path.h"
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namespace file_util {
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bool EvictFileFromSystemCache(const base::FilePath& file) {
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int fd = open(file.value().c_str(), O_RDONLY);
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if (fd < 0)
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return false;
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if (fdatasync(fd) != 0)
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return false;
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if (posix_fadvise(fd, 0, 0, POSIX_FADV_DONTNEED) != 0)
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return false;
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close(fd);
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return true;
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}
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} // namespace file_util
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