1 /* 2 * Copyright (C) 2022 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 #ifndef CHRE_PLATFORM_TRACING_H_ 18 #define CHRE_PLATFORM_TRACING_H_ 19 20 #include <cstdint> 21 22 /** 23 * @file 24 * Tracing support for CHRE. 25 * Platforms must supply an implementation of the trace functions. 26 */ 27 28 namespace chre { 29 /** 30 * Registers a nanoapp instance with the tracing infrastructure. 31 * 32 * @param instanceId instance ID of the nanoapp. 33 * @param name name of the nanoapp. 34 */ 35 void traceRegisterNanoapp(uint16_t instanceId, const char *name); 36 37 /** 38 * Marks the start of the nanoappHandleEvent function. 39 * 40 * @param instanceId instance ID of the nanoapp. 41 * @param eventType event being handled. 42 */ 43 void traceNanoappHandleEventStart(uint16_t instanceId, uint16_t eventType); 44 45 /** 46 * Marks the end of the nanoappHandleEvent function. 47 * 48 * @param instanceId instance ID of the nanoapp. 49 */ 50 void traceNanoappHandleEventEnd(uint16_t instanceId); 51 52 } // namespace chre 53 54 #endif // CHRE_PLATFORM_TRACING_H_ 55