Semaphore Capacity Coordination Report

Grant requests against a fixed permit pool and report the remaining capacity.

Semaphore Capacity Coordination Report

SemaphoreCapacityCoordinationReport.java

import java.util.concurrent.Semaphore;

public class SemaphoreCapacityCoordinationReport {
    public static void main(String[] args) {
        int requests = ;
        Semaphore permits = new Semaphore(3);
        int granted = 0;

        for (int i = 0; i < requests; i++) {
            if (permits.tryAcquire()) {
                granted++;
            }
        }

        int available = permits.availablePermits();
        String status = available == 0 ? "full" : available <= 1 ? "tight" : "open";

        System.out.println("requests=" + requests + " granted=" + granted + " available=" + available + " status=" + status);
    }
}

import java.util.concurrent.Semaphore;

public class SemaphoreCapacityCoordinationReport {
    public static void main(String[] args) {
        int requests = ;
        Semaphore permits = new Semaphore(3);
        int granted = 0;

        for (int i = 0; i < requests; i++) {
            if (permits.tryAcquire()) {
                granted++;
            }
        }

        int available = permits.availablePermits();
        String status = available == 0 ? "full" : available <= 1 ? "tight" : "open";

        System.out.println("requests=" + requests + " granted=" + granted + " available=" + available + " status=" + status);
    }
}

import java.util.concurrent.Semaphore;

public class SemaphoreCapacityCoordinationReport {
    public static void main(String[] args) {
        int requests = ;
        Semaphore permits = new Semaphore(3);
        int granted = 0;

        for (int i = 0; i < requests; i++) {
            if (permits.tryAcquire()) {
                granted++;
            }
        }

        int available = permits.availablePermits();
        String status = available == 0 ? "full" : available <= 1 ? "tight" : "open";

        System.out.println("requests=" + requests + " granted=" + granted + " available=" + available + " status=" + status);
    }
}

semaphore A `Semaphore` hands out a bounded number of permits, so the permits still available describe how much shared capacity remains.