rt-thread/components/libc/cplusplus/os/cxx_Semaphore.cpp

40 lines
657 B
C++

/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
*/
#include "cxx_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);
}