Alex Light | 88e1ddd | 2017-08-21 13:09:55 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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 <pthread.h> |
| 18 | |
| 19 | #include <cstdio> |
| 20 | #include <iostream> |
| 21 | #include <vector> |
| 22 | |
| 23 | #include "android-base/logging.h" |
| 24 | #include "jni.h" |
| 25 | #include "jvmti.h" |
| 26 | |
| 27 | #include "scoped_local_ref.h" |
| 28 | #include "scoped_primitive_array.h" |
| 29 | |
| 30 | // Test infrastructure |
| 31 | #include "jvmti_helper.h" |
| 32 | #include "test_env.h" |
| 33 | |
| 34 | namespace art { |
| 35 | namespace Test1922OwnedMonitors { |
| 36 | |
| 37 | static bool doMonitorEnter(JNIEnv* env, jobject target) { |
| 38 | return env->MonitorEnter(target) != 0; |
| 39 | } |
| 40 | static bool doMonitorExit(JNIEnv* env, jobject target) { |
| 41 | return env->MonitorExit(target) != 0; |
| 42 | } |
| 43 | |
| 44 | static bool doCallRunnable(JNIEnv* env, jobject next) { |
| 45 | ScopedLocalRef<jclass> run_class(env, env->FindClass("java/lang/Runnable")); |
| 46 | if (run_class.get() == nullptr) { |
| 47 | return true; |
| 48 | } |
| 49 | jmethodID run = env->GetMethodID(run_class.get(), "run", "()V"); |
| 50 | if (env->ExceptionCheck()) { |
| 51 | return true; |
| 52 | } |
| 53 | env->CallVoidMethod(next, run); |
| 54 | return env->ExceptionCheck(); |
| 55 | } |
| 56 | |
| 57 | extern "C" JNIEXPORT void JNICALL Java_art_Test1922_00024Target_lockThisNative( |
| 58 | JNIEnv* env, jobject thiz, jobject next) { |
| 59 | if (doMonitorEnter(env, thiz)) { |
| 60 | return; |
| 61 | } |
| 62 | if (doCallRunnable(env, next)) { |
| 63 | return; |
| 64 | } |
| 65 | if (doMonitorExit(env, thiz)) { |
| 66 | return; |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | extern "C" JNIEXPORT void JNICALL Java_art_Test1922_00024Target_lockNative( |
| 71 | JNIEnv* env, jobject thiz ATTRIBUTE_UNUSED, jobject mon, jobject next) { |
| 72 | if (doMonitorEnter(env, mon)) { |
| 73 | return; |
| 74 | } |
| 75 | if (doCallRunnable(env, next)) { |
| 76 | return; |
| 77 | } |
| 78 | if (doMonitorExit(env, mon)) { |
| 79 | return; |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | extern "C" JNIEXPORT void JNICALL Java_art_Test1922_setupTest(JNIEnv* env, jclass) { |
| 84 | jvmtiCapabilities caps; |
| 85 | memset(&caps, 0, sizeof(caps)); |
| 86 | caps.can_get_owned_monitor_info = 1; |
| 87 | caps.can_get_owned_monitor_stack_depth_info = 1; |
| 88 | JvmtiErrorToException(env, jvmti_env, jvmti_env->AddCapabilities(&caps)); |
| 89 | } |
| 90 | |
| 91 | extern "C" JNIEXPORT jobjectArray JNICALL Java_art_Test1922_getOwnedMonitorStackDepthInfo( |
| 92 | JNIEnv* env, jclass, jthread thread) { |
| 93 | jint len = 0; |
| 94 | jvmtiMonitorStackDepthInfo* monitors = nullptr; |
| 95 | if (JvmtiErrorToException( |
| 96 | env, jvmti_env, jvmti_env->GetOwnedMonitorStackDepthInfo(thread, &len, &monitors))) { |
| 97 | return nullptr; |
| 98 | } |
| 99 | ScopedLocalRef<jclass> ret_class(env, env->FindClass("art/Test1922$MonitorStackDepthInfo")); |
| 100 | if (ret_class.get() == nullptr) { |
| 101 | // CNFE should be pending. |
| 102 | return nullptr; |
| 103 | } |
| 104 | jmethodID constructor = env->GetMethodID(ret_class.get(), "<init>", "(ILjava/lang/Object;)V"); |
| 105 | if (env->ExceptionCheck()) { |
| 106 | return nullptr; |
| 107 | } |
| 108 | return CreateObjectArray(env, len, "art/Test1922$MonitorStackDepthInfo", |
| 109 | [&](jint i) { |
| 110 | return env->NewObject(ret_class.get(), |
| 111 | constructor, |
| 112 | monitors[i].stack_depth, |
| 113 | monitors[i].monitor); |
| 114 | }); |
| 115 | } |
| 116 | |
| 117 | extern "C" JNIEXPORT jobjectArray JNICALL Java_art_Test1922_getOwnedMonitors(JNIEnv* env, |
| 118 | jclass, |
| 119 | jthread thread) { |
| 120 | jint len = 0; |
| 121 | jobject* arr = nullptr; |
| 122 | if (JvmtiErrorToException(env, jvmti_env, jvmti_env->GetOwnedMonitorInfo(thread, &len, &arr))) { |
| 123 | return nullptr; |
| 124 | } |
| 125 | ScopedLocalRef<jclass> obj_class(env, env->FindClass("java/lang/Object")); |
| 126 | if (obj_class.get() == nullptr) { |
| 127 | // CNFE should be pending. |
| 128 | return nullptr; |
| 129 | } |
| 130 | jobjectArray ret = env->NewObjectArray(len, obj_class.get(), nullptr); |
| 131 | if (ret == nullptr) { |
| 132 | return nullptr; |
| 133 | } |
| 134 | for (jint i = 0; i < len; i++) { |
| 135 | env->SetObjectArrayElement(ret, i, arr[i]); |
| 136 | if (env->ExceptionCheck()) { |
| 137 | return nullptr; |
| 138 | } |
| 139 | } |
| 140 | return ret; |
| 141 | } |
| 142 | |
| 143 | } // namespace Test1922OwnedMonitors |
| 144 | } // namespace art |