source: vbox/trunk/src/VBox/Runtime/common/time/timeprog.cpp

/* $Id: timeprog.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
/** @file
 * IPRT - Time Relative to Program Start.
 */

/*
 * Copyright (C) 2006-2023 Oracle and/or its affiliates.
 *
 * This file is part of VirtualBox base platform packages, as
 * available from https://www.virtualbox.org.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation, in version 3 of the
 * License.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <https://www.gnu.org/licenses>.
 *
 * The contents of this file may alternatively be used under the terms
 * of the Common Development and Distribution License Version 1.0
 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
 * in the VirtualBox distribution, in which case the provisions of the
 * CDDL are applicable instead of those of the GPL.
 *
 * You may elect to license modified versions of this file under the
 * terms and conditions of either the GPL or the CDDL or both.
 *
 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
 */


/*********************************************************************************************************************************
*   Header Files                                                                                                                 *
*********************************************************************************************************************************/
#include <iprt/time.h>
#include "internal/iprt.h"

#include <iprt/assert.h>
#include "internal/time.h"



/**
 * Get the nanosecond timestamp relative to program startup.
 *
 * @returns Timestamp relative to program startup.
 */
RTDECL(uint64_t)  RTTimeProgramNanoTS(void)
{
    return RTTimeNanoTS() - g_u64ProgramStartNanoTS;
}
RT_EXPORT_SYMBOL(RTTimeProgramNanoTS);


/**
 * Get the microsecond timestamp relative to program startup.
 *
 * @returns Timestamp relative to program startup.
 */
RTDECL(uint64_t)  RTTimeProgramMicroTS(void)
{
    return RTTimeProgramNanoTS() / RT_NS_1US;
}
RT_EXPORT_SYMBOL(RTTimeProgramMicroTS);


/**
 * Get the millisecond timestamp relative to program startup.
 *
 * @returns Timestamp relative to program startup.
 */
RTDECL(uint64_t)  RTTimeProgramMilliTS(void)
{
    return RTTimeProgramNanoTS() / RT_NS_1MS;
}
RT_EXPORT_SYMBOL(RTTimeProgramMilliTS);


/**
 * Get the second timestamp relative to program startup.
 *
 * @returns Timestamp relative to program startup.
 */
RTDECL(uint32_t)  RTTimeProgramSecTS(void)
{
    return (uint32_t)(RTTimeProgramNanoTS() / RT_NS_1SEC);
}
RT_EXPORT_SYMBOL(RTTimeProgramSecTS);


/**
 * Get the RTTimeNanoTS() of when the program started.
 *
 * @returns Program startup timestamp.
 */
RTDECL(uint64_t) RTTimeProgramStartNanoTS(void)
{
    return g_u64ProgramStartNanoTS;
}
RT_EXPORT_SYMBOL(RTTimeProgramStartNanoTS);