spdlog/include/spdlog/details/log_msg_buffer.h
2019-08-22 19:38:00 +03:00

65 lines
1.8 KiB
C++

// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include "spdlog/details/log_msg.h"
#include "spdlog/fmt/bundled/core.h"
namespace spdlog {
namespace details {
// regular log_msgs only holds string_views to stack data - so the cannot be stored for later use.
// this one can, since it contains and owns the payload buffer.
struct log_msg_buffer : log_msg
{
fmt::basic_memory_buffer<char, 40> loggername_buf;
fmt::basic_memory_buffer<char, 200> payload_buf;
log_msg_buffer() = default;
log_msg_buffer(const log_msg &orig_msg)
: log_msg(orig_msg)
{
update_buffers();
}
log_msg_buffer(const log_msg_buffer &other)
: log_msg(other)
{
update_buffers();
}
log_msg_buffer(const log_msg_buffer &&other)
: log_msg(std::move(other))
{
update_buffers();
}
log_msg_buffer &operator=(log_msg_buffer &other) SPDLOG_NOEXCEPT
{
*static_cast<log_msg *>(this) = other;
update_buffers();
return *this;
}
log_msg_buffer &operator=(log_msg_buffer &&other) SPDLOG_NOEXCEPT
{
*static_cast<log_msg *>(this) = std::move(other);
update_buffers();
return *this;
}
void update_buffers() SPDLOG_NOEXCEPT
{
loggername_buf.clear();
loggername_buf.append(logger_name.data(), logger_name.data() + logger_name.size());
logger_name = string_view_t{loggername_buf.data(), loggername_buf.size()};
payload_buf.clear();
payload_buf.append(payload.data(), payload.data() + payload.size());
payload = string_view_t{payload_buf.data(), payload_buf.size()};
}
};
} // namespace details
} // namespace spdlog