task_logger.cc revision 46d4c2bc3267f3f028f39e7e311b0f89aba2e4fd 
1// Copyright 2014 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 "chrome/browser/sync_file_system/task_logger.h"
6
7#include "base/stl_util.h"
8
9namespace sync_file_system {
10
11namespace {
12const size_t kMaxLogSize = 500;
13}  // namespace
14
15typedef TaskLogger::TaskLog TaskLog;
16
17TaskLogger::TaskLog::TaskLog() {}
18TaskLogger::TaskLog::~TaskLog() {}
19
20TaskLogger::TaskLogger() {}
21
22TaskLogger::~TaskLogger() {
23  ClearLog();
24}
25
26void TaskLogger::RecordLog(scoped_ptr<TaskLog> log) {
27  if (!log)
28    return;
29
30  if (log_history_.size() >= kMaxLogSize) {
31    delete log_history_.front();
32    log_history_.pop_front();
33  }
34
35  log_history_.push_back(log.release());
36
37  FOR_EACH_OBSERVER(Observer, observers_,
38                    OnLogRecorded(*log_history_.back()));
39}
40
41void TaskLogger::ClearLog() {
42  STLDeleteContainerPointers(log_history_.begin(), log_history_.end());
43  log_history_.clear();
44}
45
46void TaskLogger::AddObserver(Observer* observer) {
47  observers_.AddObserver(observer);
48}
49
50void TaskLogger::RemoveObserver(Observer* observer) {
51  observers_.RemoveObserver(observer);
52}
53
54const TaskLogger::LogList& TaskLogger::GetLog() const {
55  return log_history_;
56}
57
58}  // namespace sync_file_system
59