masraf konande semafor dodoie.cpp

hamravad ha dr operating

int n;
binary-segaphore s=1;
binary-segaphore delay=0;

void producer();
{
while (true)
{
produce();
semwait(s);
append();
n++;
if (n==1) segsignal (delay)
sem signalb(s);
}
}

void consumer();
{
int m;
semwaitb(delay);
while (true)
{
semwaitb(s);
take();
n--;
m=n;
semsignalb(s);
consume();
if (m==0) sem waitb (delay)
}
}

void main()
{
n=0;
porbegin(producer,consumer);
}