1 | /** |
2 | * Copyright 2021 Alibaba, Inc. and its affiliates. All Rights Reserved. |
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 | * \author Jiliang.ljl |
17 | * \date Mar 2021 |
18 | * \brief Implementation of syslog |
19 | */ |
20 | |
21 | #include <syslog.h> |
22 | #include <ailego/io/file.h> |
23 | #include <aitheta2/index_factory.h> |
24 | |
25 | namespace proxima { |
26 | namespace be { |
27 | |
28 | class SysLogger : public aitheta2::IndexLogger { |
29 | public: |
30 | SysLogger() = default; |
31 | |
32 | ~SysLogger() { |
33 | this->cleanup(); |
34 | } |
35 | |
36 | public: |
37 | int init(const aitheta2::IndexParams ¶ms) override { |
38 | program_name_ = params.get_as_string("proxima.program.program_name" ); |
39 | // openlog require first argument to be accessible forever |
40 | openlog(program_name_.c_str(), LOG_PID, LOG_DAEMON); |
41 | return 0; |
42 | } |
43 | |
44 | int cleanup() override { |
45 | closelog(); |
46 | program_name_.clear(); |
47 | return 0; |
48 | } |
49 | |
50 | void log(int level, const char *file, int line, const char *format, |
51 | va_list args) override { |
52 | static int log_level_mapping[] = {LOG_DEBUG, LOG_INFO, LOG_WARNING, LOG_ERR, |
53 | LOG_CRIT}; |
54 | char buf[2048]; |
55 | vsnprintf(buf, sizeof(buf), format, args); |
56 | syslog(log_level_mapping[level], "%s:%d %s" , file, line, buf); |
57 | } |
58 | |
59 | private: |
60 | std::string program_name_; |
61 | }; |
62 | |
63 | INDEX_FACTORY_REGISTER_LOGGER(SysLogger); |
64 | |
65 | } // namespace be |
66 | } // end namespace proxima |
67 | |