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/* |
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* Copyright (C) 2005-2007 by Pieter Palmers |
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* |
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* This file is part of FFADO |
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* FFADO = Free Firewire (pro-)audio drivers for linux |
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* |
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* FFADO is based upon FreeBoB. |
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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 as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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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, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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|
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#include "SystemTimeSource.h" |
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#include "Time.h" |
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|
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// needed for clock_nanosleep |
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#ifndef _GNU_SOURCE |
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#define _GNU_SOURCE |
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#endif |
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|
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#include <time.h> |
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|
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namespace Util { |
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|
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IMPL_DEBUG_MODULE( SystemTimeSource, SystemTimeSource, DEBUG_LEVEL_NORMAL ); |
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|
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SystemTimeSource::SystemTimeSource() { |
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} |
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|
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SystemTimeSource::~SystemTimeSource() { |
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} |
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|
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void |
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SystemTimeSource::SleepUsecRelative(ffado_microsecs_t usecs) { |
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//usleep(usecs); |
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struct timespec ts; |
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ts.tv_sec = usecs / (1000000LL); |
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ts.tv_nsec = (usecs % (1000000LL)) * 1000LL; |
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clock_nanosleep(CLOCK_REALTIME, 0, &ts, NULL); |
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} |
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|
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void |
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SystemTimeSource::SleepUsecAbsolute(ffado_microsecs_t wake_at_usec) { |
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struct timespec ts; |
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ts.tv_sec = wake_at_usec / (1000000LL); |
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ts.tv_nsec = (wake_at_usec % (1000000LL)) * 1000LL; |
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clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME, &ts, NULL); |
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} |
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|
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ffado_microsecs_t SystemTimeSource::getCurrentTime() { |
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// struct timeval tv; |
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// gettimeofday(&tv, NULL); |
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// return tv.tv_sec * 1000000ULL + tv.tv_usec; |
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struct timespec ts; |
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clock_gettime(CLOCK_REALTIME, &ts); |
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return (ffado_microsecs_t)(ts.tv_sec * 1000000LL + ts.tv_nsec / 1000LL); |
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} |
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|
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ffado_microsecs_t SystemTimeSource::getCurrentTimeAsUsecs() { |
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return getCurrentTime(); |
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} |
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|
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} // end of namespace Util |
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