RtosSemaphore.cpp

//------------------------------------------------------------------------------
//This file is part of embKernel. 
//See license.txt for the full license governing this code.
//------------------------------------------------------------------------------
#include "RtosSemaphore.hpp"
#include "RtosPortable.hpp"

RtosSemaphore::RtosSemaphore(int maxCount, int initialCount) :
        RtosSyncObject(maxCount, initialCount) {

}

RtosSemaphore::~RtosSemaphore() {

}

bool RtosSemaphore::give(Rtos::TICK tick) {
    bool result = internalGive(tick, 1);
    if (result) {
        internalWakeUpWaitingToTake();
    }
    exitCritical();
    return result;
}

bool RtosSemaphore::giveFromInt() {
    if (mCurrentCount < mMaxCount) {
        mCurrentCount++;
        internalWakeUpWaitingToTake();
        return true;
    }
    return false;
}

bool RtosSemaphore::take(Rtos::TICK tick) {
    bool result = internalTake(tick, 1);
    if (result) {
        internalWakeUpWaitingToGive();
    }
    exitCritical();
    return result;
}

bool RtosSemaphore::takeFromInt() {
    if (mCurrentCount >= 0) {
        mCurrentCount--;
        internalWakeUpWaitingToGive();
        return true;
    }
    return false;
}