121 lines
2.5 KiB
C++
121 lines
2.5 KiB
C++
// -*- c++ -*-
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/* $Id$ */
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/* timeval.cc
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*
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* Copyright (C) 2002 The gtkmm Development Team
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <glib/gmain.h>
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#include <glib/gmessages.h>
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#include <glib/gtimer.h>
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#include <glibmm/timeval.h>
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namespace Glib
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{
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void TimeVal::assign_current_time()
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{
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g_get_current_time(this);
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}
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void TimeVal::add(const TimeVal& rhs)
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{
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g_return_if_fail(tv_usec >= 0 && tv_usec < G_USEC_PER_SEC);
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g_return_if_fail(rhs.tv_usec >= 0 && rhs.tv_usec < G_USEC_PER_SEC);
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tv_usec += rhs.tv_usec;
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if(tv_usec >= G_USEC_PER_SEC)
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{
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tv_usec -= G_USEC_PER_SEC;
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++tv_sec;
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}
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tv_sec += rhs.tv_sec;
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}
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void TimeVal::subtract(const TimeVal& rhs)
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{
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g_return_if_fail(tv_usec >= 0 && tv_usec < G_USEC_PER_SEC);
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g_return_if_fail(rhs.tv_usec >= 0 && rhs.tv_usec < G_USEC_PER_SEC);
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tv_usec -= rhs.tv_usec;
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if(tv_usec < 0)
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{
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tv_usec += G_USEC_PER_SEC;
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--tv_sec;
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}
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tv_sec -= rhs.tv_sec;
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}
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void TimeVal::add_seconds(long seconds)
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{
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g_return_if_fail(tv_usec >= 0 && tv_usec < G_USEC_PER_SEC);
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tv_sec += seconds;
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}
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void TimeVal::subtract_seconds(long seconds)
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{
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g_return_if_fail(tv_usec >= 0 && tv_usec < G_USEC_PER_SEC);
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tv_sec -= seconds;
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}
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void TimeVal::add_milliseconds(long milliseconds)
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{
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g_return_if_fail(tv_usec >= 0 && tv_usec < G_USEC_PER_SEC);
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tv_usec += (milliseconds % 1000) * 1000;
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if(tv_usec < 0)
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{
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tv_usec += G_USEC_PER_SEC;
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--tv_sec;
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}
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else if(tv_usec >= G_USEC_PER_SEC)
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{
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tv_usec -= G_USEC_PER_SEC;
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++tv_sec;
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}
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tv_sec += milliseconds / 1000;
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}
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void TimeVal::subtract_milliseconds(long milliseconds)
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{
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add_milliseconds(-1 * milliseconds);
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}
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void TimeVal::add_microseconds(long microseconds)
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{
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g_time_val_add(this, microseconds);
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}
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void TimeVal::subtract_microseconds(long microseconds)
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{
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g_time_val_add(this, -1 * microseconds);
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}
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} // namespace Glib
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