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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* This code is free software; you can redistribute it and/or modify it
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* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package com.oracle.truffle.api.test.vm;
import static com.oracle.truffle.api.test.ReflectionUtils.invoke;
import static com.oracle.truffle.api.test.ReflectionUtils.loadRelative;
import static com.oracle.truffle.api.test.ReflectionUtils.newInstance;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertNotNull;
import java.util.concurrent.Executors;
import org.junit.Test;
import com.oracle.truffle.api.vm.PolyglotEngine;
public class PolyglotEngineProfileTest {
private static final Class<?> CONTEXT_STORE_PROFILE = loadRelative(PolyglotEngineProfileTest.class, "PolyglotEngineProfile");
@Test
public void switchFromConstantToMultipleThreads() throws Exception {
final Object profile = newContextStoreProfile();
Object store1 = newContextStore();
final Object store2 = newContextStore();
Object prev = enter(profile, store1);
assertEquals(store1, get(profile));
leave(profile, prev);
// TODO should return null PolyglotEngineProfile is changed to return null again after
// leaving for constant profiles.
// assertNull(get(profile));
assertNotNull(get(profile));
prev = enter(profile, store1);
assertEquals(store1, get(profile));
leave(profile, prev);
Object prevInner = enter(profile, store2);
assertSame(store2, get(profile));
leave(profile, prevInner);
leave(profile, prev);
prev = enter(profile, store1);
assertSame(store1, get(profile));
final Object[] check = {null, null};
Executors.newSingleThreadExecutor().submit(new Runnable() {
@Override
public void run() {
Object prevInner2 = enter(profile, store2);
check[0] = get(profile);
leave(profile, prevInner2);
prevInner2 = enter(profile, store2);
check[1] = get(profile);
leave(profile, prevInner2);
}
}).get();
assertEquals(store2, check[0]);
assertEquals(store2, check[1]);
assertEquals(store1, get(profile));
leave(profile, prev);
prev = enter(profile, store1);
assertSame(store1, get(profile));
leave(profile, prev);
assertNull(get(profile));
}
@Test
public void switchFromDynamicToMultipleThreads() throws Exception {
final Object profile = newContextStoreProfile();
Object store1 = newContextStore();
final Object store2 = newContextStore();
final Object store3 = newContextStore();
enter(profile, store1);
assertEquals("Store associated", store1, get(profile));
enter(profile, store2);
assertEquals("Store associated", store2, get(profile));
final Object[] check = {null};
Executors.newSingleThreadExecutor().submit(new Runnable() {
@Override
public void run() {
enter(profile, store3);
check[0] = get(profile);
}
}).get();
assertEquals("Store on other thread associated", store3, check[0]);
assertEquals("1st thread store is still there", store2, get(profile));
}
private static Object enter(Object profile, Object store) {
return invoke(profile, "enter", store);
}
private static void leave(Object profile, Object prev) {
invoke(profile, "leave", new Class<?>[]{PolyglotEngine.class}, prev);
}
private static Object newContextStore() {
return PolyglotEngine.newBuilder().build();
}
private static Object newContextStoreProfile() {
return newInstance(CONTEXT_STORE_PROFILE, new Class<?>[]{PolyglotEngine.class}, (Object) null);
}
private static Object get(Object profile) {
return invoke(profile, "get");
}
}