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 #ifndef _ANDROID_NATIVE_CALLBACK_THREAD_H 18 #define _ANDROID_NATIVE_CALLBACK_THREAD_H 19 20 #include <android-base/macros.h> 21 #include <functional> 22 #include <jni.h> 23 #include <queue> 24 #include <thread> 25 26 namespace android { 27 28 class NativeCallbackThread { 29 typedef std::function<void(JNIEnv*)> Task; 30 31 JavaVM *mvm; 32 std::queue<Task> mQueue; 33 34 std::mutex mQueueMutex; 35 std::condition_variable mQueueCond; 36 std::atomic<bool> mExiting; 37 std::thread mThread; 38 39 void threadLoop(); 40 41 DISALLOW_COPY_AND_ASSIGN(NativeCallbackThread); 42 43 public: 44 NativeCallbackThread(JavaVM *vm); 45 virtual ~NativeCallbackThread(); 46 47 void enqueue(const Task &task); 48 void stop(); 49 }; 50 51 } // namespace android 52 53 #endif // _ANDROID_NATIVE_CALLBACK_THREAD_H 54
