1 /* 2 * Copyright (C) 2021 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-utils.h" 18 19 #include <android-base/logging.h> 20 #include <android/hidl/manager/1.2/IServiceManager.h> 21 22 namespace android::hardware::hidl_utils { 23 24 class HalDeathRecipient : public hidl_death_recipient { serviceDied(uint64_t,const wp<hidl::base::V1_0::IBase> &)25 void serviceDied(uint64_t /* cookie */, const wp<hidl::base::V1_0::IBase>& /* who */) override { 26 LOG(FATAL) << "One of the linked HALs died. Restarting..."; 27 } 28 }; 29 30 static const auto gHalDeathRecipient = sp<HalDeathRecipient>::make(); 31 linkDeathToDeath(sp<::android::hidl::base::V1_0::IBase> hal)32void linkDeathToDeath(sp<::android::hidl::base::V1_0::IBase> hal) { 33 const auto linkStatus = hal->linkToDeath(gHalDeathRecipient, 0); 34 CHECK(linkStatus.withDefault(false)) << "Failed to link to HAL death"; 35 } 36 listManifestByInterface(const char * descriptor)37hidl_vec<hidl_string> listManifestByInterface(const char* descriptor) { 38 auto manager = hidl::manager::V1_2::IServiceManager::getService(); 39 hidl_vec<hidl_string> services; 40 manager->listManifestByInterface(descriptor, hidl_utils::fill(&services)); 41 CHECK_GT(services.size(), 0u) << "No " << descriptor 42 << " services in manifest (missing privileges?)" << std::endl; 43 return services; 44 } 45 46 } // namespace android::hardware::hidl_utils 47