130 lines
3.4 KiB
C
130 lines
3.4 KiB
C
/*
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* Copyright (c) 2016, The OpenThread Authors.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdbool.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/time.h>
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#include <openthread.h>
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#include <openthread-config.h>
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#include <platform/alarm.h>
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#include <platform/diag.h>
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#include "platform-posix.h"
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static bool s_is_running = false;
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static uint32_t s_alarm = 0;
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static struct timeval s_start;
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void posixAlarmInit(void)
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{
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gettimeofday(&s_start, NULL);
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}
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uint32_t otPlatAlarmGetNow(void)
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{
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struct timeval tv;
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gettimeofday(&tv, NULL);
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timersub(&tv, &s_start, &tv);
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return (uint32_t)((tv.tv_sec * 1000) + (tv.tv_usec / 1000));
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}
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void otPlatAlarmStartAt(otInstance *aInstance, uint32_t t0, uint32_t dt)
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{
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(void)aInstance;
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s_alarm = t0 + dt;
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s_is_running = true;
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}
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void otPlatAlarmStop(otInstance *aInstance)
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{
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(void)aInstance;
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s_is_running = false;
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}
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void posixAlarmUpdateTimeout(struct timeval *aTimeout)
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{
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int32_t remaining;
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if (aTimeout == NULL)
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{
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return;
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}
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if (s_is_running)
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{
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remaining = (int32_t)(s_alarm - otPlatAlarmGetNow());
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if (remaining > 0)
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{
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aTimeout->tv_sec = remaining / 1000;
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aTimeout->tv_usec = (remaining % 1000) * 1000;
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}
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else
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{
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aTimeout->tv_sec = 0;
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aTimeout->tv_usec = 0;
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}
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}
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else
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{
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aTimeout->tv_sec = 10;
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aTimeout->tv_usec = 0;
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}
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}
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void posixAlarmProcess(otInstance *aInstance)
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{
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int32_t remaining;
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if (s_is_running)
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{
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remaining = (int32_t)(s_alarm - otPlatAlarmGetNow());
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if (remaining <= 0)
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{
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s_is_running = false;
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#if OPENTHREAD_ENABLE_DIAG
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if (otPlatDiagModeGet())
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{
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otPlatDiagAlarmFired(aInstance);
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}
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else
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#endif
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{
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otPlatAlarmFired(aInstance);
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}
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}
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}
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}
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