142 lines
4.1 KiB
C++
142 lines
4.1 KiB
C++
//-----------------------------------------------------------------------------
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//
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// TimeStampImpl.cpp
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//
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// OSX implementation of a TimeStamp
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//
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// Copyright (c) 2010 Mal Lansell <mal@lansell.org>
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// All rights reserved.
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//
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// SOFTWARE NOTICE AND LICENSE
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//
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// This file is part of OpenZWave.
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//
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// OpenZWave is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation, either version 3 of the License,
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// or (at your option) any later version.
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//
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// OpenZWave 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 Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with OpenZWave. If not, see <http://www.gnu.org/licenses/>.
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//
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//-----------------------------------------------------------------------------
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#include <string>
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#include <cstring>
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#include "../../Defs.h"
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#include "TimeStampImpl.h"
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using namespace OpenZWave;
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//-----------------------------------------------------------------------------
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// <TimeStampImpl::TimeStampImpl>
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// Constructor
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//-----------------------------------------------------------------------------
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TimeStampImpl::TimeStampImpl
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(
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)
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{
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SetTime(0);
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}
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//-----------------------------------------------------------------------------
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// <TimeStampImpl::~TimeStampImpl>
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// Destructor
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//-----------------------------------------------------------------------------
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TimeStampImpl::~TimeStampImpl
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(
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)
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{
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}
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//-----------------------------------------------------------------------------
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// <TimeStampImpl::SetTime>
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// Sets the timestamp to now, plus an offset in milliseconds
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//-----------------------------------------------------------------------------
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void TimeStampImpl::SetTime
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(
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int32 _milliseconds // = 0
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)
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{
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struct timeval now;
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gettimeofday(&now, NULL);
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m_stamp.tv_sec = now.tv_sec + (_milliseconds / 1000);
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// Now add the remainder of our timeout to the microseconds part of 'now'
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now.tv_usec += ((_milliseconds % 1000) * 1000);
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// Careful now! Did it wrap?
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if(now.tv_usec >= 1000000)
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{
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// Yes it did so bump our seconds and modulo
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now.tv_usec %= 1000000;
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m_stamp.tv_sec++;
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}
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m_stamp.tv_nsec = now.tv_usec * 1000;
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}
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//-----------------------------------------------------------------------------
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// <TimeStampImpl::TimeRemaining>
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// Gets the difference between now and the timestamp time in milliseconds
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//-----------------------------------------------------------------------------
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int32 TimeStampImpl::TimeRemaining
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(
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)
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{
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int32 diff;
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struct timeval now;
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gettimeofday(&now, NULL);
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// Seconds
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diff = (int32)((m_stamp.tv_sec - now.tv_sec)*1000);
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// Milliseconds
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diff += (((m_stamp.tv_nsec/1000)-now.tv_usec)/1000);
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return diff;
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}
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//-----------------------------------------------------------------------------
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// <TimeStampImpl::GetAsString>
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// Return a string representation
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//-----------------------------------------------------------------------------
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string TimeStampImpl::GetAsString
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(
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)
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{
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char str[100];
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struct tm *tm;
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tm = localtime( &m_stamp.tv_sec );
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snprintf( str, sizeof(str), "%04d-%02d-%02d %02d:%02d:%02d:%03d ",
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tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
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tm->tm_hour, tm->tm_min, tm->tm_sec, (int)(m_stamp.tv_nsec / (1000*1000)) );
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return str;
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}
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//-----------------------------------------------------------------------------
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// <TimeStampImpl::operator->
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// Overload the subtract operator to get the difference between two
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// timestamps in milliseconds
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//-----------------------------------------------------------------------------
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int32 TimeStampImpl::operator-
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(
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TimeStampImpl const& _other
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)
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{
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// Seconds
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int32 diff = (int32)((m_stamp.tv_sec-_other.m_stamp.tv_sec)*1000);
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// Milliseconds
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diff += ((m_stamp.tv_nsec - _other.m_stamp.tv_nsec)/1000000);
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return diff;
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}
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