libstorage-ng
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Logger.h
1/*
2 * Copyright (c) [2014-2015] Novell, Inc.
3 * Copyright (c) [2016-2020] SUSE LLC
4 *
5 * All Rights Reserved.
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of version 2 of the GNU General Public License as published
9 * by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, contact Novell, Inc.
18 *
19 * To contact Novell about this file by physical or electronic mail, you may
20 * find current contact information at www.novell.com.
21 */
22
23
24#ifndef STORAGE_LOGGER_H
25#define STORAGE_LOGGER_H
26
27
28#include <string>
29
30
31namespace storage
32{
33
37 enum class LogLevel { DEBUG = 0, MILESTONE = 1, WARNING = 2, ERROR = 3 };
38
39
43 class Logger
44 {
45 public:
46
47 Logger() {}
48 virtual ~Logger() {}
49
54 virtual bool test(LogLevel log_level, const std::string& component);
55
59 virtual void write(LogLevel log_level, const std::string& component, const std::string& file,
60 int line, const std::string& function, const std::string& content) = 0;
61
62 };
63
64
68 Logger* get_logger();
69
70
75 void set_logger(Logger* logger);
76
77
82 Logger* get_stdout_logger();
83
84
93 Logger* get_logfile_logger(const std::string& filename = "/var/log/libstorage.log");
94
95
99 class Silencer
100 {
101
102 public:
103
104 Silencer();
105 ~Silencer();
106
107 void turn_on();
108 void turn_off();
109
110 static bool is_any_active() { return count > 0; }
111
112 private:
113
114 bool active;
115
116 static int count;
117
118 };
119
120}
121
122
123#endif
storage::Logger
The Logger class.
Definition Logger.h:44
storage::Logger::test
virtual bool test(LogLevel log_level, const std::string &component)
Function to control whether a log line with level and component should be logged.
storage::Logger::write
virtual void write(LogLevel log_level, const std::string &component, const std::string &file, int line, const std::string &function, const std::string &content)=0
Function to log a line.
storage
The storage namespace.
Definition Actiongraph.h:40
storage::LogLevel
LogLevel
Enum with log levels.
Definition Logger.h:37
storage::get_logfile_logger
Logger * get_logfile_logger(const std::string &filename="/var/log/libstorage.log")
Returns a Logger that logs to the standard libstorage log file ("/var/log/libstorage....
storage::get_stdout_logger
Logger * get_stdout_logger()
Returns a Logger that logs to stdout/stderr.
storage::get_logger
Logger * get_logger()
Get the current logger object.
storage::set_logger
void set_logger(Logger *logger)
Set the current logger object.