event_logger.cc revision bbcdd45c55eb7c4641ab97aef9889b0fc828e7d3
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) 7bbcdd45c55eb7c4641ab97aef9889b0fc828e7d3Ben Murdoch#include "base/logging.h" 8868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/strings/stringprintf.h" 9c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 10eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdochnamespace drive { 11c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 12c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)EventLogger::Event::Event(int id, const std::string& what) 13c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) : id(id), 14c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) when(base::Time::Now()), 15c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) what(what) { 16c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 17c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 18c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)EventLogger::EventLogger() 19c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) : history_size_(kDefaultHistorySize), 20c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) next_event_id_(0) { 21c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 22c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 23c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)EventLogger::~EventLogger() { 24c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 25c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 26c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void EventLogger::Log(const char* format, ...) { 27c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) std::string what; 28c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 29c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) va_list args; 30c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) va_start(args, format); 31c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::StringAppendV(&what, format, args); 32c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) va_end(args); 33c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 34bbcdd45c55eb7c4641ab97aef9889b0fc828e7d3Ben Murdoch DVLOG(1) << what; 35bbcdd45c55eb7c4641ab97aef9889b0fc828e7d3Ben Murdoch 36c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::AutoLock auto_lock(lock_); 37c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) history_.push_back(Event(next_event_id_, what)); 38c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ++next_event_id_; 39c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (history_.size() > history_size_) 40c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) history_.pop_front(); 41c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 42c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 43c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void EventLogger::SetHistorySize(size_t history_size) { 44c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::AutoLock auto_lock(lock_); 45c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) history_.clear(); 46c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) history_size_ = history_size; 47c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 48c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 49c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)std::vector<EventLogger::Event> EventLogger::GetHistory() { 50c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::AutoLock auto_lock(lock_); 51c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) std::vector<Event> output; 52c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) output.assign(history_.begin(), history_.end()); 53c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return output; 54c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 55c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 56c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 57eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch} // namespace drive 58