a9cd2a6531
Review URL: http://codereview.chromium.org/11208 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@5571 0039d316-1c4b-4281-b951-d872f2087c98
76 lines
1.7 KiB
C++
76 lines
1.7 KiB
C++
// Copyright (c) 2006-2008 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/file_util.h"
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#include <fcntl.h>
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#include <string>
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#include <vector>
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#include "base/file_path.h"
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#include "base/logging.h"
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#include "base/string_util.h"
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namespace file_util {
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const wchar_t kPathSeparator = L'/';
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bool GetTempDir(FilePath* path) {
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const char* tmp = getenv("TMPDIR");
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if (tmp)
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*path = FilePath(tmp);
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else
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*path = FilePath("/tmp");
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return true;
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}
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bool CopyFile(const FilePath& from_path, const FilePath& to_path) {
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int infile = open(from_path.value().c_str(), O_RDONLY);
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if (infile < 0)
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return false;
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int outfile = creat(to_path.value().c_str(), 0666);
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if (outfile < 0) {
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close(infile);
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return false;
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}
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const size_t kBufferSize = 32768;
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std::vector<char> buffer(kBufferSize);
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bool result = true;
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while (result) {
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ssize_t bytes_read = read(infile, &buffer[0], buffer.size());
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if (bytes_read < 0) {
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result = false;
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break;
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}
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if (bytes_read == 0)
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break;
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// Allow for partial writes
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ssize_t bytes_written_per_read = 0;
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do {
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ssize_t bytes_written_partial = write(
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outfile,
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&buffer[bytes_written_per_read],
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bytes_read - bytes_written_per_read);
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if (bytes_written_partial < 0) {
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result = false;
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break;
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}
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bytes_written_per_read += bytes_written_partial;
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} while (bytes_written_per_read < bytes_read);
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}
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if (close(infile) < 0)
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result = false;
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if (close(outfile) < 0)
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result = false;
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return result;
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}
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} // namespace file_util
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