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https://github.com/oxen-io/lokinet.git
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b81f7025c9
Replaces custom logging system with spdlog-based oxen logging. This
commit mainly replaces the backend logging with the spdlog-based system,
but doesn't (yet) convert all the existing LogWarn, etc. to use the new
format-based logging.
New logging statements will look like:
llarp::log::warning(cat, "blah: {}", val);
where `cat` should be set up in each .cpp or cluster of .cpp files, as
described in the oxen-logging README.
As part of spdlog we get fmt, which gives us nice format strings, where
are applied generously in this commit.
Making types printable now requires two steps:
- add a ToString() method
- add this specialization:
template <>
constexpr inline bool llarp::IsToStringFormattable<llarp::Whatever> = true;
This will then allow the type to be printed as a "{}" value in a
fmt::format string. This is applied to all our printable types here,
and all of the `operator<<` are removed.
This commit also:
- replaces various uses of `operator<<` to ToString()
- replaces various uses of std::stringstream with either fmt::format or
plain std::string
- Rename some to_string and toString() methods to ToString() for
consistency (and to work with fmt)
- Replace `stringify(...)` and `make_exception` usage with fmt::format
(and remove stringify/make_exception from util/str.hpp).
94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
#pragma once
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#include "types.hpp"
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#include <nlohmann/json.hpp>
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#include <iostream>
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#include <fmt/format.h>
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#include <fmt/chrono.h>
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using namespace std::chrono_literals;
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namespace llarp
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{
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/// get time right now as milliseconds, this is monotonic
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Duration_t
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time_now_ms();
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/// get the uptime of the process
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Duration_t
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uptime();
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/// convert to milliseconds
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uint64_t
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ToMS(Duration_t duration);
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nlohmann::json
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to_json(const Duration_t& t);
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template <typename Time_Duration>
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struct time_delta
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{
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const TimePoint_t at;
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};
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} // namespace llarp
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namespace fmt
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{
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template <typename Time_Duration>
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struct formatter<llarp::time_delta<Time_Duration>> : formatter<std::string>
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{
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template <typename FormatContext>
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auto
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format(const llarp::time_delta<Time_Duration>& td, FormatContext& ctx)
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{
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const auto dlt =
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std::chrono::duration_cast<llarp::Duration_t>(llarp::TimePoint_t::clock::now() - td.at);
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using Parent = formatter<std::string>;
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if (dlt > 0s)
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return Parent::format(fmt::format("{} ago", dlt), ctx);
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if (dlt < 0s)
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return Parent::format(fmt::format("in {}", -dlt), ctx);
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return Parent::format("now", ctx);
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}
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};
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template <>
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struct formatter<llarp::Duration_t> : formatter<std::string>
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{
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template <typename FormatContext>
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auto
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format(llarp::Duration_t elapsed, FormatContext& ctx)
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{
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bool neg = elapsed < 0s;
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if (neg)
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elapsed = -elapsed;
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const auto hours = std::chrono::duration_cast<std::chrono::hours>(elapsed).count();
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const auto mins = (std::chrono::duration_cast<std::chrono::minutes>(elapsed) % 1h).count();
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const auto secs = (std::chrono::duration_cast<std::chrono::seconds>(elapsed) % 1min).count();
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const auto ms = (std::chrono::duration_cast<std::chrono::milliseconds>(elapsed) % 1s).count();
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return formatter<std::string>::format(
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fmt::format(
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elapsed >= 1h ? "{0}{1:d}h{2:02d}m{3:02d}.{4:03d}s"
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: elapsed >= 1min ? "{0}{2:d}m{3:02d}.{4:03d}s"
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: "{0}{3:d}.{4:03d}s",
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neg ? "-" : "",
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hours,
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mins,
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secs,
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ms),
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ctx);
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}
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};
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template <>
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struct formatter<llarp::TimePoint_t> : formatter<std::string>
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{
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template <typename FormatContext>
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auto
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format(const llarp::TimePoint_t& tp, FormatContext& ctx)
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{
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return formatter<std::string>::format(fmt::format("{:%c %Z}", tp), ctx);
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}
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};
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} // namespace fmt
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