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73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
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// Copyright (c) 2013 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 "net/disk_cache/simple/simple_index_file.h"
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#include <dirent.h>
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#include <errno.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 <memory>
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#include <string>
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#include "base/files/file_util.h"
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#include "base/logging.h"
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namespace disk_cache {
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namespace {
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struct DirCloser {
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void operator()(DIR* dir) { closedir(dir); }
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};
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typedef std::unique_ptr<DIR, DirCloser> ScopedDir;
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} // namespace
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// static
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bool SimpleIndexFile::TraverseCacheDirectory(
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const base::FilePath& cache_path,
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const EntryFileCallback& entry_file_callback) {
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const ScopedDir dir(opendir(cache_path.value().c_str()));
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if (!dir) {
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PLOG(ERROR) << "opendir " << cache_path.value();
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return false;
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}
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while (true) {
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// errno must be set to 0 before every readdir() call to detect errors.
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errno = 0;
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dirent* entry = readdir(dir.get());
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if (!entry) {
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// Some implementations of readdir() (particularly older versions of
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// Android Bionic) may leave errno set to EINTR even after they handle
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// this case internally. It's safe to ignore EINTR in that case.
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if (errno && errno != EINTR) {
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PLOG(ERROR) << "readdir " << cache_path.value();
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return false;
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}
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break;
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}
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const std::string file_name(entry->d_name);
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if (file_name == "." || file_name == "..")
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continue;
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const base::FilePath file_path = cache_path.Append(
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base::FilePath(file_name));
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base::File::Info file_info;
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if (!base::GetFileInfo(file_path, &file_info)) {
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LOG(ERROR) << "Could not get file info for " << file_path.value();
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continue;
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}
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entry_file_callback.Run(file_path, file_info.last_accessed,
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file_info.last_modified, file_info.size);
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}
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return true;
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}
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} // namespace disk_cache
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