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/**
* Title: ResourcePool
* Description: An abstraction of a collection of resources that can be
* reserved and released by real-time components
*/
package EAC;
public class ResourcePool {
// percentage of resources reserved
protected int reserved;
public ResourcePool()
{
reserved = 0;
} /* default constructor */
public ResourcePool(int r) {
reserved = r;
} /* constructor */
public int usage() {
return reserved;
} /* usage */
public boolean reserve(int r) {
if (reserved + r > 100)
return false;
else {
//System.out.println("Reservation ok: " + java.lang.Integer.toString(r));
reserved += r;
return true;
} /* else */
} /* reserve */
public boolean release(int r) {
if (reserved - r < 0)
return false;
else {
//System.out.println("Release ok: " + java.lang.Integer.toString(r));
reserved -= r;
return true;
} /* else */
} /* release */
}
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