producer.c

#include<stdio.h>
int n = 0, buffersize = 0, currentsize = 0;
void producer() {
printf("\nEnter number of elements to be produced: ");
scanf("%d", &n);
if (0 <= (buffersize - (currentsize + n))) {
currentsize += n;
printf("%d Elements produced by producer where buffersize is %d\n", currentsize, buffersize); 
}
else {
printf("\nBuffer is not sufficient\n");
}
}
void consumer() {
int x;
printf("\nEnter no. of elements to be consumed: ");
scanf("%d", &x);
if (currentsize >= x) {
currentsize -= x;
printf("\nNumber of elements consumed: %d, Number of Elements left: %d", x, currentsize);
}
else {
printf("\nNumber of Elements consumed should not be greater than Number of Elements produced\n"); }
}
int main() {
int c;
printf("\nEnter maximum size of buffer:");
scanf("%d", &buffersize);
do {
printf("\n1.Producer 2.Consumer 3.Exit"); 
printf("\nEnter Choice:");
scanf("%d", &c);
switch (c) {
case 1:
if (currentsize >= buffersize)
printf("\nBuffer is full. Cannot produce"); 
else
producer();
break;
case 2:
if (currentsize <= 0)
printf("\nBuffer is Empty. Cannot consume"); 
else
consumer();
break;
default:
return 0; 
break;
}
} while (c != 3); 

return 0;

}