rt-thread/components/cplusplus/cxx_Semaphore.cpp

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2018-10-14 19:28:18 +08:00
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
*/
2021-03-08 18:19:04 +08:00
#include "Semaphore.h"
using namespace rtthread;
Semaphore::Semaphore(const char *name, int32_t count)
{
rt_sem_init(&mID, name, count, RT_IPC_FLAG_FIFO);
}
bool Semaphore::wait(int32_t millisec)
{
rt_int32_t tick;
if (millisec < 0)
tick = -1;
else
tick = rt_tick_from_millisecond(millisec);
return rt_sem_take(&mID, tick) == RT_EOK;
}
void Semaphore::release(void)
{
rt_sem_release(&mID);
}
Semaphore::~Semaphore()
{
rt_sem_detach(&mID);
}