nes-proj/arch/platform/cooja/rtimer-arch.h

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/*
* Copyright (c) 2007, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
*/
#ifndef RTIMER_ARCH_H_
#define RTIMER_ARCH_H_
#include "contiki.h"
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#include "sys/clock.h"
#include "lib/simEnvChange.h"
#include "sys/cooja_mt.h"
#define RTIMER_ARCH_SECOND UINT64_C(1000000)
#define US_TO_RTIMERTICKS(US) (US)
#define RTIMERTICKS_TO_US(T) (T)
#define RTIMERTICKS_TO_US_64(T) (T)
rtimer_clock_t rtimer_arch_now(void);
int rtimer_arch_check(void);
int rtimer_arch_pending(void);
rtimer_clock_t rtimer_arch_next(void);
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/** \brief A platform-specific implementation that calls cooja_mt_yield()
* periodically. Without this, Cooja will get stuck in the busy-loop
* without ever updating the current rtimer time. */
#define RTIMER_BUSYWAIT_UNTIL_ABS(cond, t0, max_time) \
({ \
bool c; \
while(!(c = cond) && RTIMER_CLOCK_LT(RTIMER_NOW(), (t0) + (max_time))) { \
simProcessRunValue = 1; \
cooja_mt_yield(); \
} \
c; \
})
#endif /* RTIMER_ARCH_H_ */