1 /* 2 * Copyright (C) 2017 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 "chre/platform/slpi/preloaded_nanoapps.h" 18 19 #include "chre/core/event_loop_manager.h" 20 #include "chre/platform/fatal_error.h" 21 #include "chre/util/macros.h" 22 23 namespace chre { 24 25 // The CHRE build variant can supply this macro to override the detault list of 26 // preloaded nanoapps. This list is supplied empty to ensure that the symbol is 27 // available for platforms with no preloaded nanoapps. 28 #ifndef CHRE_VARIANT_SUPPLIES_PRELOADED_NANOAPP_LIST 29 30 //! The default list of preloaded nanoapps to load. 31 PreloadedNanoappDescriptor kPreloadedNanoappList[] = {}; 32 33 //! The size of the default preloaded nanoapp list. 34 const size_t kPreloadedNanoappCount = ARRAY_SIZE(kPreloadedNanoappList); 35 36 #endif // CHRE_VARIANT_SUPPLIES_PRELOADED_NANOAPP_LIST 37 loadPreloadedNanoapps()38void loadPreloadedNanoapps() { 39 // Compare with zero to allow the compiler to optimize away the loop. 40 // Tautological comparisons are not warnings when comparing a const with 41 // another const. 42 if (kPreloadedNanoappCount > 0) { 43 // Cast the kPreloadedNanoappCount to size_t to avoid tautological comparison 44 // warnings when the kStaticNanoappCount is zero. 45 EventLoop& eventLoop = EventLoopManagerSingleton::get()->getEventLoop(); 46 size_t nanoappCount = reinterpret_cast<size_t>(kPreloadedNanoappCount); 47 for (size_t i = 0; i < nanoappCount; i++) { 48 auto& app = kPreloadedNanoappList[i]; 49 if (app.nanoapp.isNull()) { 50 FATAL_ERROR("Couldn't allocate memory for preloaded nanoapp"); 51 } else { 52 app.nanoapp->loadFromFile(app.appId, app.filename); 53 eventLoop.startNanoapp(app.nanoapp); 54 } 55 } 56 } 57 } 58 59 } // namespace chre 60