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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/common.h>
#include <spdlog/sinks/base_sink.h>
#include <spdlog/details/null_mutex.h>
#ifdef _WIN32
# include <spdlog/details/tcp_client-windows.h>
#else
# include <spdlog/details/tcp_client.h>
#endif
#include <mutex>
#include <string>
#include <chrono>
#include <functional>
#pragma once
// Simple tcp client sink
// Connects to remote address and send the formatted log.
// Will attempt to reconnect if connection drops.
// If more complicated behaviour is needed (i.e get responses), you can inherit it and override the sink_it_ method.
namespace spdlog {
namespace sinks {
struct tcp_sink_config
{
std::string server_host;
int server_port;
bool lazy_connect = false; // if true connect on first log call instead of on construction
tcp_sink_config(std::string host, int port)
: server_host{std::move(host)}
, server_port{port}
{}
};
template<typename Mutex>
class tcp_sink : public spdlog::sinks::base_sink<Mutex>
{
public:
// connect to tcp host/port or throw if failed
// host can be hostname or ip address
explicit tcp_sink(tcp_sink_config sink_config)
: config_{std::move(sink_config)}
{
if (!config_.lazy_connect)
{
this->client_.connect(config_.server_host, config_.server_port);
}
}
~tcp_sink() override = default;
protected:
void sink_it_(const spdlog::details::log_msg &msg) override
{
spdlog::memory_buf_t formatted;
spdlog::sinks::base_sink<Mutex>::formatter_->format(msg, formatted);
if (!client_.is_connected())
{
client_.connect(config_.server_host, config_.server_port);
}
client_.send(formatted.data(), formatted.size());
}
void flush_() override {}
tcp_sink_config config_;
details::tcp_client client_;
};
using tcp_sink_mt = tcp_sink<std::mutex>;
using tcp_sink_st = tcp_sink<spdlog::details::null_mutex>;
} // namespace sinks
} // namespace spdlog
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