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InfiniteLoop.java
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InfiniteLoop.java
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/*
* Copyright 2016 Miroslav Janíček
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.sandius.rembulan.examples;
import net.sandius.rembulan.StateContext;
import net.sandius.rembulan.Table;
import net.sandius.rembulan.Variable;
import net.sandius.rembulan.compiler.CompilerChunkLoader;
import net.sandius.rembulan.env.RuntimeEnvironments;
import net.sandius.rembulan.exec.CallException;
import net.sandius.rembulan.exec.CallPausedException;
import net.sandius.rembulan.exec.DirectCallExecutor;
import net.sandius.rembulan.impl.StateContexts;
import net.sandius.rembulan.lib.StandardLibrary;
import net.sandius.rembulan.load.ChunkLoader;
import net.sandius.rembulan.load.LoaderException;
import net.sandius.rembulan.runtime.LuaFunction;
public class InfiniteLoop {
public static void main(String[] args)
throws InterruptedException, CallException, LoaderException {
String program = "n = 0; while true do n = n + 1 end";
StateContext state = StateContexts.newDefaultInstance();
Table env = StandardLibrary.in(RuntimeEnvironments.system()).installInto(state);
ChunkLoader loader = CompilerChunkLoader.of("infinite_loop");
LuaFunction main = loader.loadTextChunk(new Variable(env), "loop", program);
// execute at most one million ops
DirectCallExecutor executor = DirectCallExecutor.newExecutorWithTickLimit(1000000);
try {
executor.call(state, main);
throw new AssertionError(); // never reaches this point
}
catch (CallPausedException ex) {
System.out.println("n = " + env.rawget("n"));
}
}
}