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 "chre/core/event_loop_manager.h" 18 19#include "chre/platform/fatal_error.h" 20#include "chre/platform/memory.h" 21#include "chre/util/lock_guard.h" 22 23namespace chre { 24 25void freeEventDataCallback(uint16_t /*eventType*/, void *eventData) { 26 memoryFree(eventData); 27} 28 29Nanoapp *EventLoopManager::validateChreApiCall(const char *functionName) { 30 chre::Nanoapp *currentNanoapp = EventLoopManagerSingleton::get() 31 ->getEventLoop().getCurrentNanoapp(); 32 CHRE_ASSERT_LOG(currentNanoapp, "%s called with no CHRE app context", 33 functionName); 34 return currentNanoapp; 35} 36 37UniquePtr<char> EventLoopManager::debugDump() { 38 constexpr size_t kDebugStringSize = 4096; 39 char *debugStr = static_cast<char *>(memoryAlloc(kDebugStringSize)); 40 if (debugStr != nullptr) { 41 size_t debugStrPos = 0; 42 if (!mMemoryManager.logStateToBuffer(debugStr, &debugStrPos, 43 kDebugStringSize)) { 44 LOGE("Memory manager debug dump failed."); 45 } else if (!mEventLoop.logStateToBuffer(debugStr, &debugStrPos, 46 kDebugStringSize)) { 47 LOGE("Event loop debug dump failed."); 48 } else if (!mSensorRequestManager.logStateToBuffer(debugStr, &debugStrPos, 49 kDebugStringSize)) { 50 LOGE("Sensor request manager debug dump failed."); 51 } else if (!mGnssManager.logStateToBuffer(debugStr, &debugStrPos, 52 kDebugStringSize)) { 53 LOGE("GNSS manager debug dump failed."); 54 } else if (!mWifiRequestManager.logStateToBuffer(debugStr, &debugStrPos, 55 kDebugStringSize)) { 56 LOGE("Wifi request manager debug dump failed."); 57 } else if (!mWwanRequestManager.logStateToBuffer(debugStr, &debugStrPos, 58 kDebugStringSize)) { 59 LOGE("WWAN request manager debug dump failed."); 60 } 61 LOGD("Debug dump used %zu bytes of log buffer", debugStrPos); 62 } 63 64 return UniquePtr<char>(debugStr); 65} 66 67uint32_t EventLoopManager::getNextInstanceId() { 68 ++mLastInstanceId; 69 70 // ~4 billion instance IDs should be enough for anyone... if we need to 71 // support wraparound for stress testing load/unload, then we can set a flag 72 // when wraparound occurs and use EventLoop::findNanoappByInstanceId to ensure 73 // we avoid conflicts 74 if (mLastInstanceId == kBroadcastInstanceId 75 || mLastInstanceId == kSystemInstanceId) { 76 FATAL_ERROR("Exhausted instance IDs!"); 77 } 78 79 return mLastInstanceId; 80} 81 82void EventLoopManager::lateInit() { 83 mGnssManager.init(); 84 mWifiRequestManager.init(); 85 mWwanRequestManager.init(); 86 87#ifdef CHRE_AUDIO_SUPPORT_ENABLED 88 mAudioRequestManager.init(); 89#endif // CHRE_AUDIO_SUPPORT_ENABLED 90} 91 92// Explicitly instantiate the EventLoopManagerSingleton to reduce codesize. 93template class Singleton<EventLoopManager>; 94 95} // namespace chre 96