windows/JackWinTime.c

   1 /*
   2 Copyright (C) 2001-2003 Paul Davis
   3 Copyright (C) 2004-2008 Grame
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19 */
  20
  21 #include "JackTime.h"
  22
  23 static LARGE_INTEGER _jack_freq;
  24
  25 SERVER_EXPORT void JackSleep(long usec)
  26 {
  27         Sleep(usec / 1000);
  28 }
  29
  30 SERVER_EXPORT void InitTime()
  31 {
  32         QueryPerformanceFrequency(&_jack_freq);
  33 }
  34
  35 SERVER_EXPORT jack_time_t GetMicroSeconds(void)
  36 {
  37         LARGE_INTEGER t1;
  38         QueryPerformanceCounter(&t1);
  39         return (jack_time_t)(((double)t1.QuadPart) / ((double)_jack_freq.QuadPart) * 1000000.0);
  40 }
  41
  42 SERVER_EXPORT void SetClockSource(jack_timer_type_t source)
  43 {}
  44
  45 SERVER_EXPORT const char* ClockSourceName(jack_timer_type_t source)
  46 {
  47     return "";
  48 }