chrome/browser/drive/event_logger.cc

   1 // Copyright (c) 2012 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/drive/event_logger.h"
   6
   7 #include "base/logging.h"
   8 #include "base/strings/stringprintf.h"
   9
  10 namespace drive {
  11
  12 EventLogger::Event::Event(
  13     int id, logging::LogSeverity severity, const std::string& what)
  14     : id(id),
  15       severity(severity),
  16       when(base::Time::Now()),
  17       what(what) {
  18 }
  19
  20 EventLogger::EventLogger()
  21     : history_size_(kDefaultHistorySize),
  22       next_event_id_(0) {
  23 }
  24
  25 EventLogger::~EventLogger() {
  26 }
  27
  28 void EventLogger::Log(logging::LogSeverity severity, const std::string& what) {
  29   base::AutoLock auto_lock(lock_);
  30   history_.push_back(Event(next_event_id_, severity, what));
  31   ++next_event_id_;
  32   if (history_.size() > history_size_)
  33     history_.pop_front();
  34 }
  35
  36 void EventLogger::SetHistorySize(size_t history_size) {
  37   base::AutoLock auto_lock(lock_);
  38   history_.clear();
  39   history_size_ = history_size;
  40 }
  41
  42 std::vector<EventLogger::Event> EventLogger::GetHistory() {
  43   base::AutoLock auto_lock(lock_);
  44   std::vector<Event> output;
  45   output.assign(history_.begin(), history_.end());
  46   return output;
  47 }
  48
  49
  50 }  // namespace drive