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259
...e/src/com.oracle.truffle.nfi.test/src/com/oracle/truffle/nfi/test/ThreadErrnoNFITest.java
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| /* | ||
| * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved. | ||
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| * | ||
| * The Universal Permissive License (UPL), Version 1.0 | ||
| * | ||
| * Subject to the condition set forth below, permission is hereby granted to any | ||
| * person obtaining a copy of this software, associated documentation and/or | ||
| * data (collectively the "Software"), free of charge and under any and all | ||
| * copyright rights in the Software, and any and all patent rights owned or | ||
| * freely licensable by each licensor hereunder covering either (i) the | ||
| * unmodified Software as contributed to or provided by such licensor, or (ii) | ||
| * the Larger Works (as defined below), to deal in both | ||
| * | ||
| * (a) the Software, and | ||
| * | ||
| * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if | ||
| * one is included with the Software each a "Larger Work" to which the Software | ||
| * is contributed by such licensors), | ||
| * | ||
| * without restriction, including without limitation the rights to copy, create | ||
| * derivative works of, display, perform, and distribute the Software and make, | ||
| * use, sell, offer for sale, import, export, have made, and have sold the | ||
| * Software and the Larger Work(s), and to sublicense the foregoing rights on | ||
| * either these or other terms. | ||
| * | ||
| * This license is subject to the following condition: | ||
| * | ||
| * The above copyright notice and either this complete permission notice or at a | ||
| * minimum a reference to the UPL must be included in all copies or substantial | ||
| * portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| * SOFTWARE. | ||
| */ | ||
| package com.oracle.truffle.nfi.test; | ||
|
|
||
| import org.graalvm.polyglot.Context; | ||
| import org.graalvm.polyglot.io.IOAccess; | ||
| import org.junit.Assert; | ||
| import org.junit.ClassRule; | ||
| import org.junit.Test; | ||
|
|
||
| import com.oracle.truffle.api.CallTarget; | ||
| import com.oracle.truffle.api.TruffleLanguage; | ||
| import com.oracle.truffle.api.TruffleSafepoint; | ||
| import com.oracle.truffle.api.frame.VirtualFrame; | ||
| import com.oracle.truffle.api.interop.InteropException; | ||
| import com.oracle.truffle.api.interop.InteropLibrary; | ||
| import com.oracle.truffle.api.nodes.RootNode; | ||
| import com.oracle.truffle.api.source.Source; | ||
| import com.oracle.truffle.nfi.api.SignatureLibrary; | ||
| import com.oracle.truffle.tck.TruffleRunner; | ||
|
|
||
| // don't extend from NFI test to prevent eager loading of libraries | ||
| public class ThreadErrnoNFITest { | ||
|
|
||
| @ClassRule public static TruffleRunner.RunWithPolyglotRule runWithPolyglot = new TruffleRunner.RunWithPolyglotRule(Context.newBuilder().allowNativeAccess(true).allowIO(IOAccess.ALL)); | ||
|
|
||
| static final class TimeoutException extends Exception { | ||
|
|
||
| private static final long serialVersionUID = 1L; | ||
| } | ||
|
|
||
| private Functions fn; | ||
|
|
||
| final class Functions { | ||
|
|
||
| private final Object getErrno; | ||
| private final Object setErrno; | ||
|
|
||
| private static final InteropLibrary INTEROP = InteropLibrary.getUncached(); | ||
|
|
||
| Functions() throws InteropException { | ||
| Source libSource = NFITest.parseSource("load '" + NFITest.getLibPath("nativetest") + "'"); | ||
| Object library = runWithPolyglot.getTruffleTestEnv().parseInternal(libSource).call(); | ||
|
|
||
| getErrno = lookup(library, "getErrno", "():sint32"); | ||
| setErrno = lookup(library, "setErrno", "(sint32):void"); | ||
| } | ||
|
|
||
| private static Object lookup(Object library, String name, String signature) throws InteropException { | ||
| Object symbol = INTEROP.readMember(library, name); | ||
| Source sigSource = NFITest.parseSource(signature); | ||
| Object sig = runWithPolyglot.getTruffleTestEnv().parseInternal(sigSource).call(); | ||
| return SignatureLibrary.getUncached().bind(sig, symbol); | ||
| } | ||
|
|
||
| int getErrno() throws InteropException { | ||
| return (int) INTEROP.execute(getErrno); | ||
| } | ||
|
|
||
| void setErrno(int e) throws InteropException { | ||
| INTEROP.execute(setErrno, e); | ||
| } | ||
| } | ||
|
|
||
| final class TestThreadRunnable implements Runnable { | ||
|
|
||
| private final int errno; | ||
|
|
||
| private final Object lock = new Object(); | ||
| private volatile boolean waiting; | ||
| private volatile Runnable extraRunnable; | ||
|
|
||
| Throwable error = null; | ||
|
|
||
| TestThreadRunnable(int errno) { | ||
| this.errno = errno; | ||
| } | ||
|
|
||
| /** | ||
| * Wait until the thread hits the next syncpoint. | ||
| */ | ||
| void ensureSyncpoint() throws Throwable { | ||
| synchronized (lock) { | ||
| if (error == null && !waiting) { | ||
| lock.wait(1000); | ||
| } | ||
| if (error != null) { | ||
| throw error; | ||
| } | ||
| if (!waiting) { | ||
| throw new TimeoutException(); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Continue running. | ||
| */ | ||
| void cont() throws Throwable { | ||
| cont(null); | ||
| } | ||
|
|
||
| /** | ||
| * Continue running, and inject some extra work. | ||
| */ | ||
| void cont(Runnable extra) throws Throwable { | ||
| synchronized (lock) { | ||
| ensureSyncpoint(); | ||
| waiting = false; | ||
| extraRunnable = extra; | ||
| lock.notifyAll(); | ||
| } | ||
| } | ||
|
|
||
| private void syncpoint() throws InterruptedException, TimeoutException { | ||
| synchronized (lock) { | ||
| waiting = true; | ||
| lock.notifyAll(); | ||
| lock.wait(1000); | ||
| if (waiting) { | ||
| throw new TimeoutException(); | ||
| } | ||
| if (extraRunnable != null) { | ||
| extraRunnable.run(); | ||
| extraRunnable = null; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public void run() { | ||
| try { | ||
| runWithPolyglot.getPolyglotContext().enter(); | ||
| syncpoint(); // 1 | ||
| fn.setErrno(errno); | ||
| syncpoint(); // 2 | ||
| int e = fn.getErrno(); | ||
| Assert.assertEquals("errno", errno, e); | ||
| } catch (Throwable t) { | ||
| synchronized (lock) { | ||
| error = t; | ||
| lock.notifyAll(); | ||
| } | ||
| } finally { | ||
| runWithPolyglot.getPolyglotContext().leave(); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| static final class ForceSafepointNode extends RootNode { | ||
|
|
||
| ForceSafepointNode(TruffleLanguage<?> language) { | ||
| super(language); | ||
| } | ||
|
|
||
| @Override | ||
| public Object execute(VirtualFrame frame) { | ||
| TruffleSafepoint.pollHere(this); | ||
| return null; | ||
| } | ||
| } | ||
|
|
||
| private static final int NUM_THREADS = 4; | ||
| private static final int EARLY_THREADS = 2; | ||
|
|
||
| @Test | ||
| public void testMultiThreadErrno() throws Throwable { | ||
| TestThreadRunnable[] testThreadRunnable = new TestThreadRunnable[NUM_THREADS]; | ||
| for (int i = 0; i < NUM_THREADS; i++) { | ||
| testThreadRunnable[i] = new TestThreadRunnable(i); | ||
| } | ||
|
|
||
| Thread[] threads = new Thread[NUM_THREADS]; | ||
|
|
||
| // start some threads early before the NFI is initialized | ||
| for (int i = 0; i < EARLY_THREADS; i++) { | ||
| threads[i] = new Thread(testThreadRunnable[i]); | ||
| threads[i].start(); | ||
| // run to syncpoint 1 to ensure the thread is entered before we initialize NFI | ||
| testThreadRunnable[i].ensureSyncpoint(); | ||
| } | ||
|
|
||
| // initialize the NFI | ||
| fn = new Functions(); | ||
|
|
||
| // start the other threads | ||
| for (int i = EARLY_THREADS; i < NUM_THREADS; i++) { | ||
| threads[i] = new Thread(testThreadRunnable[i]); | ||
| threads[i].start(); | ||
| } | ||
|
|
||
| CallTarget forceSafepoint = new ForceSafepointNode(runWithPolyglot.getTestLanguage()).getCallTarget(); | ||
|
|
||
| // for all threads: | ||
| // continue past syncpoint 1, telling them to set their errno | ||
| // then wait until syncpoint 2, i.e. their errno is set | ||
| for (int i = 0; i < NUM_THREADS; i++) { | ||
| Runnable r = null; | ||
| if (i % 2 == 0) { | ||
| // inject a safepoint in every even thread | ||
| r = () -> { | ||
| forceSafepoint.call(); | ||
| }; | ||
| } | ||
| testThreadRunnable[i].cont(r); | ||
| testThreadRunnable[i].ensureSyncpoint(); | ||
| } | ||
|
|
||
| // let all threads continue past syncpoint 2, and verify their errno is unmodified | ||
| for (int i = 0; i < NUM_THREADS; i++) { | ||
| testThreadRunnable[i].cont(); | ||
| } | ||
|
|
||
| // wait for all threads to finish and verify there was no error | ||
| for (int i = 0; i < NUM_THREADS; i++) { | ||
| threads[i].join(1000); | ||
| if (testThreadRunnable[i].error != null) { | ||
| throw testThreadRunnable[i].error; | ||
| } | ||
| } | ||
| } | ||
| } |