LogEvent.hpp

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#pragma once
 
#include <array>
#include <cstddef>
#include <cstdint>
#include <string_view>
 
#include "corium/logging/LogLevel.hpp"
 
namespace corium::logging {
 
template <std::size_t MaxMessageLength = 256>
struct LogEventT {
    LogLevel level = LogLevel::Info;
    std::array<char, MaxMessageLength> message{};
    std::size_t length = 0;
    const char* category = "App";
    uint64_t timestampNs = 0;
 
    constexpr LogEventT() = default;
 
    constexpr LogEventT(LogLevel lvl, std::string_view msg, const char* cat = "App", uint64_t ts = 0) noexcept
        : level(lvl), category(cat ? cat : "App"), timestampNs(ts)
    {
        setMessage(msg);
    }
 
    constexpr void setMessage(std::string_view msg) noexcept
    {
        std::size_t copyLen = msg.length() < (MaxMessageLength - 1) ? msg.length() : (MaxMessageLength - 1);
        for (std::size_t i = 0; i < copyLen; ++i) {
            message[i] = msg[i];
        }
        message[copyLen] = '\0';
        length = copyLen;
    }
 
    [[nodiscard]] constexpr std::string_view view() const noexcept
    {
        return std::string_view(message.data(), length);
    }
};
 
using LogEvent = LogEventT<256>;
 
} // namespace corium::logging