Sockets/EventTime.cpp

   1 /** \file EventTime.cpp
   2  **     \date  2005-12-07
   3  **     \author grymse@alhem.net
   4 **/
   5 /*
   6 Copyright (C) 2005,2007  Anders Hedstrom
   7
   8 This library is made available under the terms of the GNU GPL.
   9
  10 If you would like to use this library in a closed-source application,
  11 a separate license agreement is available. For information about
  12 the closed-source license agreement for the C++ sockets library,
  13 please visit http://www.alhem.net/Sockets/license.html and/or
  14 email license@alhem.net.
  15
  16 This program is free software; you can redistribute it and/or
  17 modify it under the terms of the GNU General Public License
  18 as published by the Free Software Foundation; either version 2
  19 of the License, or (at your option) any later version.
  20
  21 This program is distributed in the hope that it will be useful,
  22 but WITHOUT ANY WARRANTY; without even the implied warranty of
  23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24 GNU General Public License for more details.
  25
  26 You should have received a copy of the GNU General Public License
  27 along with this program; if not, write to the Free Software
  28 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  29 */
  30 #ifdef MACOSX
  31 #include <stdint.h>
  32 #include <sys/types.h>
  33 #include <signal.h>
  34 #endif
  35 #include "EventTime.h"
  36 #ifdef _WIN32
  37 #include <windows.h>
  38 #else
  39 #include <sys/select.h>
  40 #include <sys/time.h>
  41 #endif
  42
  43
  44
  45 #ifdef SOCKETS_NAMESPACE
  46 namespace SOCKETS_NAMESPACE {
  47 #endif
  48
  49
  50 EventTime::EventTime() : m_time(Tick())
  51 {
  52 }
  53
  54
  55 EventTime::EventTime(mytime_t sec,long usec) : m_time(Tick())
  56 {
  57         m_time += sec * 1000000 + usec;
  58 }
  59
  60
  61 EventTime::~EventTime()
  62 {
  63 }
  64
  65
  66 mytime_t EventTime::Tick()
  67 {
  68         mytime_t t;
  69 #ifdef _WIN32
  70         FILETIME ft;
  71         GetSystemTimeAsFileTime(&ft);
  72         t = ft.dwHighDateTime;
  73         t = t << 32;
  74         t += ft.dwLowDateTime;
  75         t /= 10; // us
  76 #else
  77         struct timeval tv;
  78         struct timezone tz;
  79         gettimeofday(&tv, &tz);
  80         t = tv.tv_sec;
  81         t *= 1000000;
  82         t += tv.tv_usec;
  83 #endif
  84         return t;
  85 }
  86
  87
  88 EventTime EventTime::operator - (const EventTime& x) const
  89 {
  90         EventTime t;
  91         t.m_time = m_time - x.m_time;
  92         return t;
  93 }
  94
  95
  96 bool EventTime::operator < (const EventTime& x) const
  97 {
  98         return m_time < x.m_time;
  99 }
 100
 101
 102 #ifdef SOCKETS_NAMESPACE
 103 }
 104 #endif
 105