41 lines
1.1 KiB
Java
41 lines
1.1 KiB
Java
/* Copyright 2017 Andrew Dawson
|
|
*
|
|
* This file is part of Tusky.
|
|
*
|
|
* Tusky is free software: you can redistribute it and/or modify it under the terms of the GNU
|
|
* General Public License as published by the Free Software Foundation, either version 3 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
|
|
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
|
|
* Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with Tusky. If not, see
|
|
* <http://www.gnu.org/licenses/>. */
|
|
|
|
package com.keylesspalace.tusky;
|
|
|
|
public class CountUpDownLatch {
|
|
private int count;
|
|
|
|
public CountUpDownLatch() {
|
|
this.count = 0;
|
|
}
|
|
|
|
public synchronized void countDown() {
|
|
count--;
|
|
notifyAll();
|
|
}
|
|
|
|
public synchronized void countUp() {
|
|
count++;
|
|
notifyAll();
|
|
}
|
|
|
|
public synchronized void await() throws InterruptedException {
|
|
while (count != 0) {
|
|
wait();
|
|
}
|
|
}
|
|
}
|