event_logger.cc revision eb525c5499e34cc9c4b825d6d9e75bb07cc06ace
1c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 3c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// found in the LICENSE file. 4c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 5eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "chrome/browser/drive/event_logger.h" 6c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 7868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/strings/stringprintf.h" 8c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 9eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdochnamespace drive { 10c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 11c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)EventLogger::Event::Event(int id, const std::string& what) 12c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) : id(id), 13c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) when(base::Time::Now()), 14c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) what(what) { 15c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 16c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 17c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)EventLogger::EventLogger() 18c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) : history_size_(kDefaultHistorySize), 19c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) next_event_id_(0) { 20c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 21c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 22c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)EventLogger::~EventLogger() { 23c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 24c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 25c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void EventLogger::Log(const char* format, ...) { 26c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) std::string what; 27c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 28c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) va_list args; 29c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) va_start(args, format); 30c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::StringAppendV(&what, format, args); 31c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) va_end(args); 32c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 33c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::AutoLock auto_lock(lock_); 34c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) history_.push_back(Event(next_event_id_, what)); 35c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ++next_event_id_; 36c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (history_.size() > history_size_) 37c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) history_.pop_front(); 38c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 39c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 40c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void EventLogger::SetHistorySize(size_t history_size) { 41c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::AutoLock auto_lock(lock_); 42c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) history_.clear(); 43c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) history_size_ = history_size; 44c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 45c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 46c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)std::vector<EventLogger::Event> EventLogger::GetHistory() { 47c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::AutoLock auto_lock(lock_); 48c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) std::vector<Event> output; 49c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) output.assign(history_.begin(), history_.end()); 50c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return output; 51c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 52c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 53c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 54eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch} // namespace drive 55