00001 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ 00002 /* 00003 * Copyright (c) 2005 INRIA 00004 * 00005 * This program is free software; you can redistribute it and/or modify 00006 * it under the terms of the GNU General Public License version 2 as 00007 * published by the Free Software Foundation; 00008 * 00009 * This program is distributed in the hope that it will be useful, 00010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 * GNU General Public License for more details. 00013 * 00014 * You should have received a copy of the GNU General Public License 00015 * along with this program; if not, write to the Free Software 00016 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00017 * 00018 * Author: Mathieu Lacage <mathieu.lacage.inria.fr> 00019 */ 00020 00021 #ifndef SYSTEM_WALL_CLOCK_MS_H 00022 #define SYSTEM_WALL_CLOCK_MS_H 00023 00024 namespace ns3 { 00025 00026 /** 00027 * \brief measure wall-clock time in milliseconds 00028 */ 00029 class SystemWallClockMs { 00030 public: 00031 SystemWallClockMs (); 00032 ~SystemWallClockMs (); 00033 00034 /** 00035 * Start a measure. 00036 */ 00037 void Start (void); 00038 /** 00039 * \returns the measured elapsed wall clock time since 00040 * ns3::SystemWallClockMs::start was invoked. 00041 * 00042 * It is possible to start a new measurement with ns3::SystemWallClockMs::start 00043 * after this method returns. 00044 */ 00045 unsigned long long End (void); 00046 private: 00047 class SystemWallClockMsPrivate *m_priv; 00048 }; 00049 00050 }; // namespace ns3 00051 00052 #endif /* SYSTEM_WALL_CLOCK_MS_H */