1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
export module routemon:log;
import std;
namespace routemon::log {
export enum class level : std::uint8_t {
debug,
info,
warn,
error,
};
export class sink
{
std::atomic<enum level> lvl_;
std::ostream& os_ = std::cout;
explicit sink(level lvl);
friend auto make_sink(level lvl) -> std::shared_ptr<sink>;
public:
struct tmp_message
{
level lvl;
std::string_view component;
std::string_view txt;
std::map<std::string, std::string> const& attrs;
};
[[nodiscard]] auto level() const -> enum level;
auto set_level(enum level lvl) -> void;
auto write(tmp_message msg) -> void;
};
export auto make_sink(level lvl) -> std::shared_ptr<sink>;
export class logger
{
std::shared_ptr<sink> sink_;
std::string component_;
std::map<std::string, std::string> attrs_;
auto log_at(log::level lvl, std::string_view fmt, std::format_args args)
-> logger&;
public:
explicit logger(std::shared_ptr<sink> const& sink);
[[nodiscard]] auto sub(std::string_view component) const -> logger;
[[nodiscard]] auto with(std::string const& k, std::string&& v) const
-> logger;
[[nodiscard]] auto with(std::string const& k, std::string_view v) const
-> logger;
template <class... Args>
auto debug(std::format_string<Args...> fmt, Args&&... args) -> logger&
{
return log_at(level::debug, fmt.get(), std::make_format_args(args...));
}
template <class... Args>
auto info(std::format_string<Args...> fmt, Args&&... args) -> logger&
{
return log_at(level::info, fmt.get(), std::make_format_args(args...));
}
template <class... Args>
auto warn(std::format_string<Args...> fmt, Args&&... args) -> logger&
{
return log_at(level::warn, fmt.get(), std::make_format_args(args...));
}
template <class... Args>
auto error(std::format_string<Args...> fmt, Args&&... args) -> logger&
{
return log_at(level::error, fmt.get(), std::make_format_args(args...));
}
};
} // namespace routemon::log
|
