82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2005 INRIA
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Mathieu Lacage <mathieu.lacage.inria.fr>
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*/
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#ifndef SYSTEM_WALL_CLOCK_MS_H
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#define SYSTEM_WALL_CLOCK_MS_H
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#include <stdint.h>
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namespace ns3 {
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/**
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* \brief measure elapsed time in milliseconds
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*
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*/
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class SystemWallClockMs {
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public:
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SystemWallClockMs ();
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~SystemWallClockMs ();
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/**
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* Start a measure.
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*/
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void Start (void);
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/**
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* \brief Stop measuring the time since Start() was called.
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* \returns the measured elapsed wall clock time (in milliseconds) since
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* ns3::SystemWallClockMs::Start was invoked.
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*
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* It is possible to start a new measurement with ns3::SystemWallClockMs::Start
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* after this method returns.
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*
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* Returns int64_t to avoid dependency on clock_t in ns-3 code.
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*/
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int64_t End (void);
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/**
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* \returns the measured elapsed wall clock time (in milliseconds) since
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* ns3::SystemWallClockMs::Start was invoked.
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*
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* Returns int64_t to avoid dependency on clock_t in ns-3 code.
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*/
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int64_t GetElapsedReal (void) const;
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/**
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* \returns the measured elapsed 'user' wall clock time (in milliseconds) since
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* ns3::SystemWallClockMs::Start was invoked.
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*
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* Returns int64_t to avoid dependency on clock_t in ns-3 code.
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*/
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int64_t GetElapsedUser (void) const;
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/**
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* \returns the measured elapsed 'system' wall clock time (in milliseconds) since
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* ns3::SystemWallClockMs::Start was invoked.
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*
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* Returns int64_t to avoid dependency on clock_t in ns-3 code.
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*/
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int64_t GetElapsedSystem (void) const;
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private:
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class SystemWallClockMsPrivate *m_priv;
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};
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}; // namespace ns3
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#endif /* SYSTEM_WALL_CLOCK_MS_H */
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