1// Copyright (c) 2013 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 "net/disk_cache/simple/simple_index_file.h"
6
7#include <dirent.h>
8#include <sys/stat.h>
9#include <sys/types.h>
10#include <unistd.h>
11
12#include <string>
13
14#include "base/logging.h"
15#include "base/memory/scoped_ptr.h"
16
17namespace disk_cache {
18namespace {
19
20struct DirCloser {
21  void operator()(DIR* dir) { closedir(dir); }
22};
23
24typedef scoped_ptr<DIR, DirCloser> ScopedDir;
25
26}  // namespace
27
28// static
29bool SimpleIndexFile::TraverseCacheDirectory(
30    const base::FilePath& cache_path,
31    const EntryFileCallback& entry_file_callback) {
32  const ScopedDir dir(opendir(cache_path.value().c_str()));
33  if (!dir) {
34    PLOG(ERROR) << "opendir " << cache_path.value();
35    return false;
36  }
37  dirent entry, *result;
38  while (readdir_r(dir.get(), &entry, &result) == 0) {
39    if (!result)
40      return true;  // The traversal completed successfully.
41    const std::string file_name(result->d_name);
42    if (file_name == "." || file_name == "..")
43      continue;
44    const base::FilePath file_path = cache_path.Append(
45        base::FilePath(file_name));
46    entry_file_callback.Run(file_path);
47  }
48  PLOG(ERROR) << "readdir_r " << cache_path.value();
49  return false;
50}
51
52}  // namespace disk_cache
53