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1 // Copyright (C) 2010, 2011, 2012, 2013 GlavSoft LLC.
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2 // All rights reserved.
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3 //
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4 //-------------------------------------------------------------------------
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5 // This file is part of the TightVNC software. Please visit our Web site:
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6 //
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7 // http://www.tightvnc.com/
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8 //
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9 // This program is free software; you can redistribute it and/or modify
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10 // it under the terms of the GNU General Public License as published by
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11 // the Free Software Foundation; either version 2 of the License, or
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12 // (at your option) any later version.
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13 //
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14 // This program is distributed in the hope that it will be useful,
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15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 // GNU General Public License for more details.
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18 //
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19 // You should have received a copy of the GNU General Public License along
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20 // with this program; if not, write to the Free Software Foundation, Inc.,
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21 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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22 //-------------------------------------------------------------------------
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23 //
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24
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25 package com.glavsoft.rfb.protocol;
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26
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27 import com.glavsoft.rfb.client.ClientToServerMessage;
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28
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29 import java.util.concurrent.BlockingQueue;
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30 import java.util.concurrent.LinkedBlockingQueue;
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31 import java.util.concurrent.TimeUnit;
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32
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33 /**
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34 * @author dime at tightvnc.com
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35 */
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36 public class MessageQueue {
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37 private final BlockingQueue<ClientToServerMessage> queue;
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38
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39 public MessageQueue() {
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40 queue = new LinkedBlockingQueue<ClientToServerMessage>();
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41 }
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42
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43 public void put(ClientToServerMessage message) {
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44 queue.offer(message);
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45 }
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46
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47 /**
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48 * Retrieves and removes the head of this queue, waiting if necessary until an element becomes available.
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49 * Retrieves and removes the head of this queue, waiting up to the certain wait time if necessary for
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50 * an element to become available.
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51 * @return the head of this queue, or null if the specified waiting time elapses before an element is available
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52 * @throws InterruptedException - if interrupted while waiting
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53 */
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54 public ClientToServerMessage get() throws InterruptedException {
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55 return queue.poll(1, TimeUnit.SECONDS);
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56 }
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57
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58 }
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