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 "log.h"
18 #include "logevent.h"
19 
20 namespace android {
21 
22 /* LogEvent *******************************************************************/
23 
FromBytes(const std::vector<uint8_t> & buffer)24 std::unique_ptr<LogEvent> LogEvent::FromBytes(
25         const std::vector<uint8_t>& buffer) {
26     auto event = std::unique_ptr<LogEvent>(new LogEvent());
27     event->Populate(buffer);
28 
29     return event;
30 }
31 
GetMessage() const32 std::string LogEvent::GetMessage() const {
33     constexpr size_t kHeaderSize = sizeof(uint32_t) // Message type.
34         + sizeof(char) // Log level.
35         + sizeof(char); // Beginning of log message.
36 
37     if (event_data.size() < kHeaderSize) {
38         LOGW("Invalid/short LogEvent event of size %zu", event_data.size());
39         return std::string();
40     } else {
41         const char *message = reinterpret_cast<const char *>(
42             event_data.data() + sizeof(uint32_t));
43         return std::string(message);
44     }
45 }
46 
47 }  // namespace android
48