223 lines
8.0 KiB
Java
223 lines
8.0 KiB
Java
/*
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* Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @summary smoke tests for CallSite
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* @library /test/lib
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*
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* @build indify.Indify
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* @compile CallSiteTest.java
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* @run main/othervm/timeout=3600 -XX:+IgnoreUnrecognizedVMOptions -XX:-VerifyDependencies -Xbatch
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* indify.Indify
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* --expand-properties --classpath ${test.classes}
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* --java test.java.lang.invoke.CallSiteTest
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*/
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package test.java.lang.invoke;
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import java.io.*;
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import java.lang.invoke.*;
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import static java.lang.invoke.MethodHandles.*;
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import static java.lang.invoke.MethodType.*;
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import static jdk.test.lib.Asserts.*;
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public class CallSiteTest {
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private static final Class<?> CLASS = CallSiteTest.class;
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private static CallSite mcs;
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private static CallSite vcs;
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private static MethodHandle mh_foo;
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private static MethodHandle mh_bar;
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static {
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try {
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mh_foo = lookup().findStatic(CLASS, "foo", methodType(int.class, int.class, int.class));
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mh_bar = lookup().findStatic(CLASS, "bar", methodType(int.class, int.class, int.class));
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mcs = new MutableCallSite(mh_foo);
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vcs = new VolatileCallSite(mh_foo);
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} catch (Exception e) {
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e.printStackTrace();
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throw new Error(e);
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}
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}
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public static void main(String... av) throws Throwable {
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testConstantCallSite();
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testMutableCallSite();
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testVolatileCallSite();
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}
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private static final int N = Integer.MAX_VALUE / 100;
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private static final int RESULT1 = 762786192;
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private static final int RESULT2 = -21474836;
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static final CallSite MCS = new MutableCallSite(methodType(void.class));
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static final MethodHandle MCS_INVOKER = MCS.dynamicInvoker();
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static void test(boolean shouldThrow) {
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try {
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MCS_INVOKER.invokeExact();
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if (shouldThrow) {
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throw new AssertionError("should throw");
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}
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} catch (IllegalStateException ise) {
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if (!shouldThrow) {
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throw new AssertionError("should not throw", ise);
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}
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} catch (Throwable e) {
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throw new Error(e);
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}
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}
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static class MyCCS extends ConstantCallSite {
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public MyCCS(MethodType targetType, MethodHandle createTargetHook) throws Throwable {
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super(targetType, createTargetHook);
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}
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}
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private static MethodHandle testConstantCallSiteHandler(CallSite cs, CallSite[] holder) throws Throwable {
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holder[0] = cs; // capture call site instance for subsequent checks
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MethodType csType = cs.type(); // should not throw on partially constructed instance
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// Truly dynamic invoker for constant call site
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MethodHandle getTarget = lookup().findVirtual(CallSite.class, "getTarget", MethodType.methodType(MethodHandle.class))
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.bindTo(cs);
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MethodHandle invoker = MethodHandles.exactInvoker(csType);
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MethodHandle target = MethodHandles.foldArguments(invoker, getTarget);
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MCS.setTarget(target);
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// warmup
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for (int i = 0; i < 20_000; i++) {
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test(true); // should throw IllegalStateException
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}
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return MethodHandles.empty(csType); // initialize cs with an empty method handle
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}
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private static void testConstantCallSite() throws Throwable {
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CallSite[] holder = new CallSite[1];
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MethodHandle handler = lookup().findStatic(CLASS, "testConstantCallSiteHandler", MethodType.methodType(MethodHandle.class, CallSite.class, CallSite[].class));
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handler = MethodHandles.insertArguments(handler, 1, new Object[] { holder } );
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CallSite ccs = new MyCCS(MCS.type(), handler); // trigger call to handler
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if (ccs != holder[0]) {
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throw new AssertionError("different call site instances");
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}
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for (int i = 0; i < 20_000; i++) {
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test(false); // should not throw
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}
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}
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private static void testMutableCallSite() throws Throwable {
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// warm-up
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for (int i = 0; i < 20000; i++) {
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mcs.setTarget(mh_foo);
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}
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// run
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for (int n = 0; n < 2; n++) {
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mcs.setTarget(mh_foo);
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for (int i = 0; i < 5; i++) {
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assertEQ(RESULT1, runMutableCallSite());
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}
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mcs.setTarget(mh_bar);
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for (int i = 0; i < 5; i++) {
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assertEQ(RESULT2, runMutableCallSite());
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}
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}
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}
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private static void testVolatileCallSite() throws Throwable {
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// warm-up
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for (int i = 0; i < 20000; i++) {
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vcs.setTarget(mh_foo);
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}
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// run
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for (int n = 0; n < 2; n++) {
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vcs.setTarget(mh_foo);
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for (int i = 0; i < 5; i++) {
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assertEQ(RESULT1, runVolatileCallSite());
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}
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vcs.setTarget(mh_bar);
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for (int i = 0; i < 5; i++) {
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assertEQ(RESULT2, runVolatileCallSite());
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}
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}
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}
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private static int runMutableCallSite() throws Throwable {
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int sum = 0;
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for (int i = 0; i < N; i++) {
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sum += (int) INDY_mcs().invokeExact(i, i+1);
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}
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return sum;
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}
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private static int runVolatileCallSite() throws Throwable {
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int sum = 0;
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for (int i = 0; i < N; i++) {
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sum += (int) INDY_vcs().invokeExact(i, i+1);
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}
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return sum;
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}
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static int foo(int a, int b) { return a + b; }
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static int bar(int a, int b) { return a - b; }
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private static MethodType MT_bsm() {
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shouldNotCallThis();
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return methodType(CallSite.class, Lookup.class, String.class, MethodType.class);
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}
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private static CallSite bsm_mcs(Lookup caller, String name, MethodType type) throws ReflectiveOperationException {
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return mcs;
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}
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private static MethodHandle MH_bsm_mcs() throws ReflectiveOperationException {
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shouldNotCallThis();
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return lookup().findStatic(lookup().lookupClass(), "bsm_mcs", MT_bsm());
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}
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private static MethodHandle INDY_mcs() throws Throwable {
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shouldNotCallThis();
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return ((CallSite) MH_bsm_mcs().invoke(lookup(), "foo", methodType(int.class, int.class, int.class))).dynamicInvoker();
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}
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private static CallSite bsm_vcs(Lookup caller, String name, MethodType type) throws ReflectiveOperationException {
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return vcs;
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}
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private static MethodHandle MH_bsm_vcs() throws ReflectiveOperationException {
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shouldNotCallThis();
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return lookup().findStatic(lookup().lookupClass(), "bsm_vcs", MT_bsm());
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}
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private static MethodHandle INDY_vcs() throws Throwable {
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shouldNotCallThis();
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return ((CallSite) MH_bsm_vcs().invoke(lookup(), "foo", methodType(int.class, int.class, int.class))).dynamicInvoker();
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}
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private static void shouldNotCallThis() {
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// if this gets called, the transformation has not taken place
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throw new AssertionError("this code should be statically transformed away by Indify");
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}
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}
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