looper.cpp revision 3762c311729fe9f3af085c14c5c1fb471d994c03
1682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn/* 2682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn * Copyright (C) 2010 The Android Open Source Project 3682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn * 4682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn * Licensed under the Apache License, Version 2.0 (the "License"); 5682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn * you may not use this file except in compliance with the License. 6682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn * You may obtain a copy of the License at 7682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn * 8682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn * http://www.apache.org/licenses/LICENSE-2.0 9682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn * 10682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn * Unless required by applicable law or agreed to in writing, software 11682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn * distributed under the License is distributed on an "AS IS" BASIS, 12682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn * See the License for the specific language governing permissions and 14682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn * limitations under the License. 15682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn */ 16682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn 17682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn#define LOG_TAG "ALooper" 18682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn#include <utils/Log.h> 19682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn 20682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn#include <android/looper.h> 214fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown#include <utils/Looper.h> 22c70bed01ac1c38d278fb3a656aaea23ab0fec73eJeff Brown#include <binder/IPCThreadState.h> 23682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn 244fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brownusing android::Looper; 25682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackbornusing android::sp; 26c70bed01ac1c38d278fb3a656aaea23ab0fec73eJeff Brownusing android::IPCThreadState; 27682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn 28682674154e3fe88f6061245145f934f25f1a2eb8Dianne HackbornALooper* ALooper_forThread() { 294fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown return Looper::getForThread().get(); 30682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn} 31682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn 324fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff BrownALooper* ALooper_prepare(int opts) { 334fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown return Looper::prepare(opts).get(); 34682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn} 35682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn 364fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brownvoid ALooper_acquire(ALooper* looper) { 374fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown static_cast<Looper*>(looper)->incStrong((void*)ALooper_acquire); 3885448bbecd4e0909eecfab15b7c3605f114d0427Dianne Hackborn} 3985448bbecd4e0909eecfab15b7c3605f114d0427Dianne Hackborn 404fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brownvoid ALooper_release(ALooper* looper) { 414fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown static_cast<Looper*>(looper)->decStrong((void*)ALooper_acquire); 424fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown} 434fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown 444fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brownint ALooper_pollOnce(int timeoutMillis, int* outFd, int* outEvents, void** outData) { 454fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown sp<Looper> looper = Looper::getForThread(); 464fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown if (looper == NULL) { 473762c311729fe9f3af085c14c5c1fb471d994c03Steve Block ALOGE("ALooper_pollOnce: No looper for this thread!"); 484fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown return ALOOPER_POLL_ERROR; 4985448bbecd4e0909eecfab15b7c3605f114d0427Dianne Hackborn } 504fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown 51c70bed01ac1c38d278fb3a656aaea23ab0fec73eJeff Brown IPCThreadState::self()->flushCommands(); 524fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown return looper->pollOnce(timeoutMillis, outFd, outEvents, outData); 53682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn} 54682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn 554fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brownint ALooper_pollAll(int timeoutMillis, int* outFd, int* outEvents, void** outData) { 564fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown sp<Looper> looper = Looper::getForThread(); 574fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown if (looper == NULL) { 583762c311729fe9f3af085c14c5c1fb471d994c03Steve Block ALOGE("ALooper_pollAll: No looper for this thread!"); 594fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown return ALOOPER_POLL_ERROR; 604fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown } 61c70bed01ac1c38d278fb3a656aaea23ab0fec73eJeff Brown 62c70bed01ac1c38d278fb3a656aaea23ab0fec73eJeff Brown IPCThreadState::self()->flushCommands(); 634fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown return looper->pollAll(timeoutMillis, outFd, outEvents, outData); 64682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn} 65682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn 664fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brownvoid ALooper_wake(ALooper* looper) { 674fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown static_cast<Looper*>(looper)->wake(); 68682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn} 69682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn 704fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brownint ALooper_addFd(ALooper* looper, int fd, int ident, int events, 714fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown ALooper_callbackFunc callback, void* data) { 724fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown return static_cast<Looper*>(looper)->addFd(fd, ident, events, callback, data); 73682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn} 74682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn 754fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brownint ALooper_removeFd(ALooper* looper, int fd) { 764fe6c3e51be77e35f40872cdbca6c80f8f8b7ecbJeff Brown return static_cast<Looper*>(looper)->removeFd(fd); 77682674154e3fe88f6061245145f934f25f1a2eb8Dianne Hackborn} 78