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| 1 | +/* |
| 2 | + * Copyright (c) 2017, 2024, Oracle and/or its affiliates. All rights reserved. |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | + * |
| 5 | + * The Universal Permissive License (UPL), Version 1.0 |
| 6 | + * |
| 7 | + * Subject to the condition set forth below, permission is hereby granted to any |
| 8 | + * person obtaining a copy of this software, associated documentation and/or |
| 9 | + * data (collectively the "Software"), free of charge and under any and all |
| 10 | + * copyright rights in the Software, and any and all patent rights owned or |
| 11 | + * freely licensable by each licensor hereunder covering either (i) the |
| 12 | + * unmodified Software as contributed to or provided by such licensor, or (ii) |
| 13 | + * the Larger Works (as defined below), to deal in both |
| 14 | + * |
| 15 | + * (a) the Software, and |
| 16 | + * |
| 17 | + * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if |
| 18 | + * one is included with the Software each a "Larger Work" to which the Software |
| 19 | + * is contributed by such licensors), |
| 20 | + * |
| 21 | + * without restriction, including without limitation the rights to copy, create |
| 22 | + * derivative works of, display, perform, and distribute the Software and make, |
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| 24 | + * Software and the Larger Work(s), and to sublicense the foregoing rights on |
| 25 | + * either these or other terms. |
| 26 | + * |
| 27 | + * This license is subject to the following condition: |
| 28 | + * |
| 29 | + * The above copyright notice and either this complete permission notice or at a |
| 30 | + * minimum a reference to the UPL must be included in all copies or substantial |
| 31 | + * portions of the Software. |
| 32 | + * |
| 33 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 34 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 35 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 36 | + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 38 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 39 | + * SOFTWARE. |
| 40 | + */ |
| 41 | +package com.oracle.graal.python.test.integration.advanced; |
| 42 | + |
| 43 | +import org.graalvm.polyglot.Context; |
| 44 | +import org.graalvm.polyglot.PolyglotException; |
| 45 | +import org.junit.Assert; |
| 46 | +import org.junit.Test; |
| 47 | + |
| 48 | +import com.oracle.graal.python.test.integration.PythonTests; |
| 49 | + |
| 50 | +import java.util.concurrent.CountDownLatch; |
| 51 | +import java.util.concurrent.TimeUnit; |
| 52 | +import java.util.concurrent.atomic.AtomicReference; |
| 53 | + |
| 54 | +public class ShutdownTest extends PythonTests { |
| 55 | + @Test |
| 56 | + public void testCloseWithBackgroundThreadsRunningSucceeds() { |
| 57 | + Context context = Context.newBuilder().allowExperimentalOptions(true).allowAllAccess(true).build(); |
| 58 | + try { |
| 59 | + loadNativeExtension(context); |
| 60 | + asyncStartPythonThreadsThatSleep(context); |
| 61 | + } finally { |
| 62 | + context.close(true); |
| 63 | + } |
| 64 | + } |
| 65 | + |
| 66 | + @Test |
| 67 | + public void testCloseFromAnotherThreadThrowsCancelledEx() { |
| 68 | + Context context = Context.newBuilder().allowExperimentalOptions(true).allowAllAccess(true).build(); |
| 69 | + PolyglotException thrownEx = null; |
| 70 | + try { |
| 71 | + loadNativeExtension(context); |
| 72 | + asyncStartPythonThreadsThatSleep(context); |
| 73 | + CountDownLatch latch = new CountDownLatch(1); |
| 74 | + new Thread(() -> { |
| 75 | + try { |
| 76 | + latch.await(); |
| 77 | + Thread.sleep(10); |
| 78 | + } catch (InterruptedException e) { |
| 79 | + throw new RuntimeException(e); |
| 80 | + } |
| 81 | + // close from another thread |
| 82 | + context.close(true); |
| 83 | + }).start(); |
| 84 | + countDownLatchAndSleepInPython(context, latch); |
| 85 | + } catch (PolyglotException ex) { |
| 86 | + thrownEx = ex; |
| 87 | + } finally { |
| 88 | + context.close(true); |
| 89 | + Assert.assertNotNull("PolyglotException was not thrown upon cancellation ", thrownEx); |
| 90 | + Assert.assertTrue(thrownEx.toString(), thrownEx.isCancelled()); |
| 91 | + } |
| 92 | + } |
| 93 | + |
| 94 | + @Test |
| 95 | + public void testJavaThreadGetsCancelledException() throws InterruptedException { |
| 96 | + Context context = Context.newBuilder().allowExperimentalOptions(true).allowAllAccess(true).build(); |
| 97 | + AtomicReference<PolyglotException> thrownEx = new AtomicReference<>(); |
| 98 | + CountDownLatch gotException = new CountDownLatch(1); |
| 99 | + try { |
| 100 | + asyncStartPythonThreadsThatSleep(context); |
| 101 | + CountDownLatch latch = new CountDownLatch(1); |
| 102 | + new Thread(() -> { |
| 103 | + try { |
| 104 | + // this thread will get stuck sleeping in python |
| 105 | + countDownLatchAndSleepInPython(context, latch); |
| 106 | + } catch (PolyglotException ex) { |
| 107 | + thrownEx.set(ex); |
| 108 | + gotException.countDown(); |
| 109 | + } |
| 110 | + }).start(); |
| 111 | + try { |
| 112 | + loadNativeExtension(context); |
| 113 | + latch.await(); |
| 114 | + Thread.sleep(10); // make sure the other thread really starts sleeping |
| 115 | + } catch (InterruptedException e) { |
| 116 | + throw new RuntimeException(e); |
| 117 | + } |
| 118 | + } finally { |
| 119 | + context.close(true); |
| 120 | + } |
| 121 | + Assert.assertTrue("other thread did not get any exception in time limit", gotException.await(2, TimeUnit.SECONDS)); |
| 122 | + Assert.assertNotNull("PolyglotException was not thrown upon cancellation ", thrownEx.get()); |
| 123 | + Assert.assertTrue(thrownEx.toString(), thrownEx.get().isCancelled()); |
| 124 | + } |
| 125 | + |
| 126 | + @Test |
| 127 | + public void testJavaThreadNotExecutingPythonAnymore() throws InterruptedException { |
| 128 | + Context context = Context.newBuilder().allowExperimentalOptions(true).allowAllAccess(true).build(); |
| 129 | + var javaThreadDone = new CountDownLatch(1); |
| 130 | + var javaThreadCanEnd = new CountDownLatch(1); |
| 131 | + var javaThread = new Thread(() -> { |
| 132 | + Assert.assertEquals(42, context.eval("python", "42").asInt()); |
| 133 | + javaThreadDone.countDown(); |
| 134 | + try { |
| 135 | + javaThreadCanEnd.await(); |
| 136 | + } catch (InterruptedException e) { |
| 137 | + throw new RuntimeException(e); |
| 138 | + } |
| 139 | + }); |
| 140 | + AtomicReference<Throwable> uncaughtEx = new AtomicReference<>(); |
| 141 | + javaThread.setUncaughtExceptionHandler((t, e) -> uncaughtEx.set(e)); |
| 142 | + try { |
| 143 | + javaThread.start(); |
| 144 | + loadNativeExtension(context); |
| 145 | + javaThreadDone.await(); |
| 146 | + } finally { |
| 147 | + // we can close although the Java thread is still running |
| 148 | + context.close(true); |
| 149 | + } |
| 150 | + javaThreadCanEnd.countDown(); |
| 151 | + javaThread.join(); |
| 152 | + Assert.assertNull(uncaughtEx.get()); |
| 153 | + } |
| 154 | + |
| 155 | + private static void loadNativeExtension(Context context) { |
| 156 | + context.eval("python", "import _cpython_sre\nassert _cpython_sre.ascii_tolower(88) == 120\n"); |
| 157 | + } |
| 158 | + |
| 159 | + private static void asyncStartPythonThreadsThatSleep(Context context) { |
| 160 | + for (int i = 0; i < 10; i++) { |
| 161 | + context.eval("python", "import threading; import time; threading.Thread(target=lambda: time.sleep(10000)).start()"); |
| 162 | + } |
| 163 | + } |
| 164 | + |
| 165 | + private static void countDownLatchAndSleepInPython(Context context, CountDownLatch latch) { |
| 166 | + context.eval("python", "def run(latch): import time; latch.countDown(); time.sleep(100000)"); |
| 167 | + context.getBindings("python").getMember("run").execute(latch); |
| 168 | + } |
| 169 | +} |
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