1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <signal.h> 18 #include <sys/types.h> 19 20 #include <atomic> 21 22 #include "android-base/logging.h" 23 #include "android-base/macros.h" 24 #include "jni.h" 25 #include "jvmti.h" 26 27 // Test infrastructure 28 #include "jvmti_helper.h" 29 #include "test_env.h" 30 31 namespace art { 32 namespace Test933MiscEvents { 33 34 static std::atomic<bool> saw_dump_request(false); 35 36 static void DumpRequestCallback(jvmtiEnv* jenv ATTRIBUTE_UNUSED) { 37 printf("Received dump request.\n"); 38 saw_dump_request.store(true, std::memory_order::memory_order_relaxed); 39 } 40 41 extern "C" JNIEXPORT void JNICALL Java_art_Test933_testSigQuit( 42 JNIEnv* env, jclass Main_klass ATTRIBUTE_UNUSED) { 43 jvmtiEventCallbacks callbacks; 44 memset(&callbacks, 0, sizeof(jvmtiEventCallbacks)); 45 callbacks.DataDumpRequest = DumpRequestCallback; 46 jvmtiError ret = jvmti_env->SetEventCallbacks(&callbacks, sizeof(callbacks)); 47 if (JvmtiErrorToException(env, jvmti_env, ret)) { 48 return; 49 } 50 51 ret = jvmti_env->SetEventNotificationMode(JVMTI_ENABLE, 52 JVMTI_EVENT_DATA_DUMP_REQUEST, 53 nullptr); 54 if (JvmtiErrorToException(env, jvmti_env, ret)) { 55 return; 56 } 57 58 // Send sigquit to self. 59 kill(getpid(), SIGQUIT); 60 61 // Busy-wait for request. 62 for (;;) { 63 sleep(1); 64 if (saw_dump_request.load(std::memory_order::memory_order_relaxed)) { 65 break; 66 } 67 } 68 69 ret = jvmti_env->SetEventNotificationMode(JVMTI_DISABLE, JVMTI_EVENT_DATA_DUMP_REQUEST, nullptr); 70 JvmtiErrorToException(env, jvmti_env, ret); 71 } 72 73 } // namespace Test933MiscEvents 74 } // namespace art 75
