extended_msg.hpp

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// SPDX-FileCopyrightText: 2026 Jarosław Pelczar <jarek@jpelczar.com>
//
// SPDX-License-Identifier: BSD-2-Clause
 
#pragma once
 
#include "log_msg.hpp"
#include <cstdint>
 
namespace microfmt::log {
 
inline constexpr std::uint32_t no_cpu = 0xFFFFFFFFU;
 
enum class log_flag : std::uint32_t {
  none = 0,
  can_wait = 1U << 0,
};
 
struct RELOCO_COPYABLE log_meta {
  static constexpr unsigned user_flags_shift = 16;
 
  std::uint32_t pid{0};
  std::uint32_t tid{0};
  std::uint32_t cpu{no_cpu};
  std::uint32_t flags{0};
 
  [[nodiscard]] constexpr bool has(log_flag f) const noexcept { return (flags & static_cast<std::uint32_t>(f)) != 0; }
  [[nodiscard]] constexpr bool can_wait() const noexcept { return has(log_flag::can_wait); }
 
  [[nodiscard]] constexpr std::uint32_t user_flags() const noexcept { return flags >> user_flags_shift; }
 
  constexpr void set_user_flags(std::uint32_t user) noexcept {
    flags = (flags & 0xFFFFU) | ((user & 0xFFFFU) << user_flags_shift);
  }
 
  constexpr void set(log_flag f, bool on = true) noexcept {
    const auto bit = static_cast<std::uint32_t>(f);
    flags = on ? (flags | bit) : (flags & ~bit);
  }
};
 
struct MICROFMT_API_CLASS extended_log_msg : log_msg {
  log_meta meta{};
 
  constexpr extended_log_msg() = default;
  explicit constexpr extended_log_msg(const log_msg &base, const log_meta &m = {}) noexcept : log_msg(base), meta(m) {}
};
 
} // namespace microfmt::log
 
RELOCO_TYPE_ID_NAME(microfmt::log::extended_log_msg, "microfmt::log::extended_log_msg");