/*
* Adapted from https://github.com/rubinius/rubinius-core-api.
*
* Copyright (c) 2011, Evan Phoenix
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of the Evan Phoenix nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jruby.truffle.runtime.rubinius;
import org.jruby.truffle.runtime.core.*;
import org.jruby.truffle.runtime.core.RubyClass;
import org.jruby.truffle.runtime.core.RubyObject;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;
public class RubiniusChannel extends RubyObject {
private final LinkedBlockingQueue<RubyObject> queue = new LinkedBlockingQueue<>();
public RubiniusChannel(RubyClass cls) {
super(cls);
}
public RubyObject allocate(RubyClass klazz) {
return new RubiniusChannel(klazz);
}
public void send(RubyObject value) {
queue.add(value);
}
public Object receive() {
try {
return queue.take();
} catch (InterruptedException ie) {
return false;
}
}
public Object receive_timeout(long time) {
try {
if (time == -1) {
return queue.take();
} else {
return queue.poll(time, TimeUnit.NANOSECONDS);
}
} catch (InterruptedException ie) {
return false;
}
}
public Object try_receive() {
RubyObject result = queue.poll();
if (result == null)
return getContext().getCoreLibrary().getNilObject();
return result;
}
}