components/cplusplus/Semaphore.cpp


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#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);
}