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::LogRawString(logging::LogSeverity severity, 29 const std::string& what) { 30 base::AutoLock auto_lock(lock_); 31 history_.push_back(Event(next_event_id_, severity, what)); 32 ++next_event_id_; 33 if (history_.size() > history_size_) 34 history_.pop_front(); 35 } 36 37 void EventLogger::Log(logging::LogSeverity severity, const char* format, ...) { 38 std::string what; 39 40 va_list args; 41 va_start(args, format); 42 base::StringAppendV(&what, format, args); 43 va_end(args); 44 45 DVLOG(1) << what; 46 LogRawString(severity, what); 47 } 48 49 void EventLogger::SetHistorySize(size_t history_size) { 50 base::AutoLock auto_lock(lock_); 51 history_.clear(); 52 history_size_ = history_size; 53 } 54 55 std::vector<EventLogger::Event> EventLogger::GetHistory() { 56 base::AutoLock auto_lock(lock_); 57 std::vector<Event> output; 58 output.assign(history_.begin(), history_.end()); 59 return output; 60 } 61 62 63 } // namespace drive 64
