org.jruby.ext.fiber.FiberExtLibrary Maven / Gradle / Ivy

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 * Version: CPL 1.0/GPL 2.0/LGPL 2.1
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 * The contents of this file are subject to the Common Public
 * License Version 1.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.eclipse.org/legal/cpl-v10.html
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 * Software distributed under the License is distributed on an "AS
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 * Copyright (C) 2007 Charles O Nutter 
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package org.jruby.ext.fiber;

import org.jruby.CompatVersion;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.anno.JRubyMethod;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.runtime.load.Library;

/**
 * These methods get loaded when you require 'fiber'.
 */
public class FiberExtLibrary implements Library {
    public void load(final Ruby runtime, boolean wrap) {
        RubyClass cFiber = runtime.getClass("Fiber");
        cFiber.defineAnnotatedMethods(FiberExtMeta.class);
    }

    public static class FiberExtMeta {
        @JRubyMethod(compat = CompatVersion.RUBY1_9, meta = true)
        public static IRubyObject current(ThreadContext context, IRubyObject recv) {
            return context.getRuntime().getCurrentContext().getFiber();
        }
        
        @JRubyMethod(name = "alive?", compat = CompatVersion.RUBY1_9)
        public static IRubyObject alive_p(ThreadContext context, IRubyObject recv) {
            if (!(recv instanceof Fiber)) throw context.runtime.newTypeError("wrong self for Fiber#alive?");
            
            return context.runtime.newBoolean(((Fiber)recv).isAlive());
        }
    }
}