1 /* 2 * Copyright (C) 2010 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 #define LOG_TAG "ALooper" 18 #include <utils/Log.h> 19 20 #include <android/looper.h> 21 #include <utils/Looper.h> 22 #include <binder/IPCThreadState.h> 23 24 using android::Looper; 25 using android::sp; 26 using android::IPCThreadState; 27 ALooper_to_Looper(ALooper * alooper)28 static inline Looper* ALooper_to_Looper(ALooper* alooper) { 29 return reinterpret_cast<Looper*>(alooper); 30 } 31 Looper_to_ALooper(Looper * looper)32 static inline ALooper* Looper_to_ALooper(Looper* looper) { 33 return reinterpret_cast<ALooper*>(looper); 34 } 35 ALooper_forThread()36 ALooper* ALooper_forThread() { 37 return Looper_to_ALooper(Looper::getForThread().get()); 38 } 39 ALooper_prepare(int opts)40 ALooper* ALooper_prepare(int opts) { 41 return Looper_to_ALooper(Looper::prepare(opts).get()); 42 } 43 ALooper_acquire(ALooper * looper)44 void ALooper_acquire(ALooper* looper) { 45 ALooper_to_Looper(looper)->incStrong((void*)ALooper_acquire); 46 } 47 ALooper_release(ALooper * looper)48 void ALooper_release(ALooper* looper) { 49 ALooper_to_Looper(looper)->decStrong((void*)ALooper_acquire); 50 } 51 ALooper_pollOnce(int timeoutMillis,int * outFd,int * outEvents,void ** outData)52 int ALooper_pollOnce(int timeoutMillis, int* outFd, int* outEvents, void** outData) { 53 sp<Looper> looper = Looper::getForThread(); 54 if (looper == NULL) { 55 ALOGE("ALooper_pollOnce: No looper for this thread!"); 56 return ALOOPER_POLL_ERROR; 57 } 58 59 IPCThreadState::self()->flushCommands(); 60 return looper->pollOnce(timeoutMillis, outFd, outEvents, outData); 61 } 62 ALooper_pollAll(int timeoutMillis,int * outFd,int * outEvents,void ** outData)63 int ALooper_pollAll(int timeoutMillis, int* outFd, int* outEvents, void** outData) { 64 sp<Looper> looper = Looper::getForThread(); 65 if (looper == NULL) { 66 ALOGE("ALooper_pollAll: No looper for this thread!"); 67 return ALOOPER_POLL_ERROR; 68 } 69 70 IPCThreadState::self()->flushCommands(); 71 return looper->pollAll(timeoutMillis, outFd, outEvents, outData); 72 } 73 ALooper_wake(ALooper * looper)74 void ALooper_wake(ALooper* looper) { 75 ALooper_to_Looper(looper)->wake(); 76 } 77 ALooper_addFd(ALooper * looper,int fd,int ident,int events,ALooper_callbackFunc callback,void * data)78 int ALooper_addFd(ALooper* looper, int fd, int ident, int events, 79 ALooper_callbackFunc callback, void* data) { 80 return ALooper_to_Looper(looper)->addFd(fd, ident, events, callback, data); 81 } 82 ALooper_removeFd(ALooper * looper,int fd)83 int ALooper_removeFd(ALooper* looper, int fd) { 84 return ALooper_to_Looper(looper)->removeFd(fd); 85 } 86