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      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 <atomic>
     18 
     19 #include "android-base/logging.h"
     20 #include "jni.h"
     21 #include "scoped_local_ref.h"
     22 #include "scoped_primitive_array.h"
     23 
     24 #include "jvmti.h"
     25 
     26 // Test infrastructure
     27 #include "jvmti_helper.h"
     28 #include "test_env.h"
     29 
     30 namespace art {
     31 namespace Test1943SuspendRawMonitorExit {
     32 
     33 jrawMonitorID mon;
     34 std::atomic<bool> locked(false);
     35 
     36 extern "C" JNIEXPORT void JNICALL Java_art_Test1943_nativeRun(JNIEnv* env, jclass) {
     37   if (JvmtiErrorToException(
     38       env, jvmti_env, jvmti_env->CreateRawMonitor("Test1943 monitor", &mon))) {
     39     return;
     40   }
     41   // Grab the monitor twice
     42   if (JvmtiErrorToException(env, jvmti_env, jvmti_env->RawMonitorEnter(mon))) {
     43     return;
     44   }
     45   locked.store(true);
     46   if (JvmtiErrorToException(env, jvmti_env, jvmti_env->RawMonitorWait(mon, 0))) {
     47     return;
     48   }
     49   if (JvmtiErrorToException(env, jvmti_env, jvmti_env->RawMonitorExit(mon))) {
     50     return;
     51   }
     52   locked.store(false);
     53 }
     54 
     55 
     56 extern "C" JNIEXPORT void JNICALL Java_art_Test1943_waitForPause(JNIEnv*, jclass) {
     57   while (!locked.load()) { }
     58 }
     59 
     60 extern "C" JNIEXPORT void JNICALL Java_art_Test1943_nativeNotify(JNIEnv* env, jclass) {
     61   if (JvmtiErrorToException(env, jvmti_env, jvmti_env->RawMonitorEnter(mon))) {
     62     return;
     63   }
     64   if (JvmtiErrorToException(env, jvmti_env, jvmti_env->RawMonitorNotifyAll(mon))) {
     65     return;
     66   }
     67   if (JvmtiErrorToException(env, jvmti_env, jvmti_env->RawMonitorExit(mon))) {
     68     return;
     69   }
     70 }
     71 
     72 extern "C" JNIEXPORT void JNICALL Java_art_Test1943_grabRawMonitor(JNIEnv* env, jclass) {
     73   if (JvmtiErrorToException(env, jvmti_env, jvmti_env->RawMonitorEnter(mon))) {
     74     return;
     75   }
     76   if (JvmtiErrorToException(env, jvmti_env, jvmti_env->RawMonitorExit(mon))) {
     77     return;
     78   }
     79 }
     80 
     81 }  // namespace Test1943SuspendRawMonitorExit
     82 }  // namespace art
     83