Update mojo sdk to rev c02a28868825edfa57ab77947b8cb15e741c5598
[chromium-blink-merge.git] / components / proximity_auth / logging / log_buffer.cc
blob5e23d22023d00cb99c4e94481929327bd855b8c3
1 // Copyright 2015 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.
5 #include "components/proximity_auth/logging/log_buffer.h"
7 #include "base/lazy_instance.h"
9 namespace proximity_auth {
11 namespace {
13 // The maximum number of logs that can be stored in the buffer.
14 const size_t kMaxBufferSize = 1000;
16 // The global instance returned by LogBuffer::GetInstance().
17 base::LazyInstance<LogBuffer>::Leaky g_log_buffer = LAZY_INSTANCE_INITIALIZER;
19 } // namespace
21 LogBuffer::LogMessage::LogMessage(const std::string& text,
22 const base::Time& time,
23 const std::string& file,
24 const int line,
25 logging::LogSeverity severity)
26 : text(text), time(time), file(file), line(line), severity(severity) {
29 LogBuffer::LogBuffer() {
32 LogBuffer::~LogBuffer() {
35 // static
36 LogBuffer* LogBuffer::GetInstance() {
37 return &g_log_buffer.Get();
40 void LogBuffer::AddObserver(Observer* observer) {
41 observers_.AddObserver(observer);
44 void LogBuffer::RemoveObserver(Observer* observer) {
45 observers_.RemoveObserver(observer);
48 void LogBuffer::AddLogMessage(const LogMessage& log_message) {
49 // Note: We may want to sort the messages by timestamp if there are cases
50 // where logs are not added chronologically.
51 log_messages_.push_back(log_message);
52 if (log_messages_.size() > MaxBufferSize())
53 log_messages_.pop_front();
54 FOR_EACH_OBSERVER(Observer, observers_, OnLogMessageAdded(log_message));
57 void LogBuffer::Clear() {
58 log_messages_.clear();
59 FOR_EACH_OBSERVER(Observer, observers_, OnLogBufferCleared());
62 size_t LogBuffer::MaxBufferSize() const {
63 return kMaxBufferSize;
66 } // proximity_auth