Alex Light | c98f83e | 2018-07-26 08:28:36 -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 <atomic> |
| 18 | |
| 19 | #include "jvmti.h" |
| 20 | |
| 21 | // Test infrastructure |
| 22 | #include "jvmti_helper.h" |
| 23 | #include "scoped_local_ref.h" |
| 24 | #include "test_env.h" |
| 25 | |
| 26 | namespace art { |
| 27 | namespace Test1951MonitorEnterNoSuspend { |
| 28 | |
Andreas Gampe | c55bb39 | 2018-09-21 00:02:02 +0000 | [diff] [blame] | 29 | using RawMonitorEnterNoSuspend = jvmtiError(*)(jvmtiEnv* env, jrawMonitorID mon); |
Alex Light | c98f83e | 2018-07-26 08:28:36 -0700 | [diff] [blame] | 30 | |
| 31 | template <typename T> |
| 32 | static void Dealloc(T* t) { |
| 33 | jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(t)); |
| 34 | } |
| 35 | |
| 36 | template <typename T, typename ...Rest> |
| 37 | static void Dealloc(T* t, Rest... rs) { |
| 38 | Dealloc(t); |
| 39 | Dealloc(rs...); |
| 40 | } |
| 41 | static void DeallocParams(jvmtiParamInfo* params, jint n_params) { |
| 42 | for (jint i = 0; i < n_params; i++) { |
| 43 | Dealloc(params[i].name); |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | RawMonitorEnterNoSuspend GetNoSuspendFunction(JNIEnv* env) { |
| 48 | // Get the extensions. |
| 49 | jint n_ext = 0; |
| 50 | jvmtiExtensionFunctionInfo* infos = nullptr; |
| 51 | if (JvmtiErrorToException(env, jvmti_env, jvmti_env->GetExtensionFunctions(&n_ext, &infos))) { |
| 52 | return nullptr; |
| 53 | } |
| 54 | RawMonitorEnterNoSuspend result = nullptr; |
| 55 | for (jint i = 0; i < n_ext; i++) { |
| 56 | jvmtiExtensionFunctionInfo* cur_info = &infos[i]; |
| 57 | if (strcmp("com.android.art.concurrent.raw_monitor_enter_no_suspend", cur_info->id) == 0) { |
| 58 | result = reinterpret_cast<RawMonitorEnterNoSuspend>(cur_info->func); |
| 59 | } |
| 60 | // Cleanup the cur_info |
| 61 | DeallocParams(cur_info->params, cur_info->param_count); |
| 62 | Dealloc(cur_info->id, cur_info->short_description, cur_info->params, cur_info->errors); |
| 63 | } |
| 64 | // Cleanup the array. |
| 65 | Dealloc(infos); |
| 66 | return result; |
| 67 | } |
| 68 | |
| 69 | static std::atomic<bool> started(false); |
| 70 | static std::atomic<bool> resumed(false); |
| 71 | static std::atomic<bool> progress(false); |
| 72 | |
| 73 | extern "C" JNIEXPORT void JNICALL Java_art_Test1951_otherThreadStart(JNIEnv* env, jclass) { |
| 74 | jrawMonitorID mon; |
| 75 | if (JvmtiErrorToException(env, jvmti_env, jvmti_env->CreateRawMonitor("test 1951", &mon))) { |
| 76 | return; |
| 77 | } |
| 78 | RawMonitorEnterNoSuspend enter_func = GetNoSuspendFunction(env); |
| 79 | if (enter_func == nullptr) { |
| 80 | return; |
| 81 | } |
| 82 | started = true; |
| 83 | while (!resumed) {} |
| 84 | jvmtiError err = enter_func(jvmti_env, mon); |
| 85 | CHECK_EQ(err, JVMTI_ERROR_NONE); |
| 86 | progress = true; |
| 87 | err = jvmti_env->RawMonitorExit(mon); |
| 88 | CHECK_EQ(err, JVMTI_ERROR_NONE); |
| 89 | } |
| 90 | |
| 91 | extern "C" JNIEXPORT void JNICALL Java_art_Test1951_waitForStart(JNIEnv*, jclass) { |
| 92 | while (!started) {} |
| 93 | } |
| 94 | |
| 95 | extern "C" JNIEXPORT void JNICALL Java_art_Test1951_otherThreadResume(JNIEnv*, jclass) { |
| 96 | resumed = true; |
| 97 | } |
| 98 | |
| 99 | extern "C" JNIEXPORT jboolean JNICALL Java_art_Test1951_otherThreadProgressed(JNIEnv*, jclass) { |
| 100 | return progress; |
| 101 | } |
| 102 | |
| 103 | } // namespace Test1951MonitorEnterNoSuspend |
| 104 | } // namespace art |