1/* 2 * Copyright (C) 2016 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 <hidl/HidlTransportSupport.h> 18#include <sys/wait.h> 19#include <utils/Log.h> 20#include <utils/Errors.h> 21#include <utils/StrongPointer.h> 22 23#ifndef ANDROID_HIDL_LEGACY_SUPPORT_H 24#define ANDROID_HIDL_LEGACY_SUPPORT_H 25 26namespace android { 27namespace hardware { 28 29/** 30 * Registers passthrough service implementation. 31 */ 32template<class Interface> 33__attribute__((warn_unused_result)) 34status_t registerPassthroughServiceImplementation( 35 std::string name = "default") { 36 sp<Interface> service = Interface::getService(name, true /* getStub */); 37 38 if (service == nullptr) { 39 ALOGE("Could not get passthrough implementation for %s/%s.", 40 Interface::descriptor, name.c_str()); 41 return EXIT_FAILURE; 42 } 43 44 LOG_FATAL_IF(service->isRemote(), "Implementation of %s/%s is remote!", 45 Interface::descriptor, name.c_str()); 46 47 status_t status = service->registerAsService(name); 48 49 if (status == OK) { 50 ALOGI("Registration complete for %s/%s.", 51 Interface::descriptor, name.c_str()); 52 } else { 53 ALOGE("Could not register service %s/%s (%d).", 54 Interface::descriptor, name.c_str(), status); 55 } 56 57 return status; 58} 59 60/** 61 * Creates default passthrough service implementation. This method never returns. 62 * 63 * Return value is exit status. 64 */ 65template<class Interface> 66__attribute__((warn_unused_result)) 67status_t defaultPassthroughServiceImplementation(std::string name, 68 size_t maxThreads = 1) { 69 configureRpcThreadpool(maxThreads, true); 70 status_t result = registerPassthroughServiceImplementation<Interface>(name); 71 72 if (result != OK) { 73 return result; 74 } 75 76 joinRpcThreadpool(); 77 return 0; 78} 79template<class Interface> 80__attribute__((warn_unused_result)) 81status_t defaultPassthroughServiceImplementation(size_t maxThreads = 1) { 82 return defaultPassthroughServiceImplementation<Interface>("default", maxThreads); 83} 84 85} // namespace hardware 86} // namespace android 87 88#endif // ANDROID_HIDL_LEGACY_SUPPORT_H 89