1 /* 2 * Copyright (C) 2014 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 #include <semaphore.h> 19 20 struct loopermessage; 21 22 class looper { 23 public: 24 looper(); 25 ~looper(); 26 27 void post(int what, void *data, bool flush = false); 28 void quit(); 29 30 virtual void handle(int what, void *data); 31 32 private: 33 void addmsg(loopermessage *msg, bool flush); 34 static void* trampoline(void* p); 35 void loop(); 36 loopermessage *head; 37 pthread_t worker; 38 sem_t headwriteprotect; 39 sem_t headdataavailable; 40 bool running; 41 }; 42
