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//
// Copyright(c) 2015 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
#pragma once
#include "spdlog/common.h"
#ifdef SPDLOG_ENABLE_SYSLOG
#include "spdlog/sinks/sink.h"
#include "spdlog/details/log_msg.h"
#include <array>
#include <string>
#include <syslog.h>
namespace spdlog
{
namespace sinks
{
/**
* Sink that write to syslog using the `syscall()` library call.
*
* Locking is not needed, as `syslog()` itself is thread-safe.
*/
class syslog_sink : public sink
{
public:
//
syslog_sink(const std::string& ident = "", int syslog_option=0, int syslog_facility=LOG_USER):
_ident(ident)
{
_priorities[static_cast<int>(level::trace)] = LOG_DEBUG;
_priorities[static_cast<int>(level::debug)] = LOG_DEBUG;
_priorities[static_cast<int>(level::info)] = LOG_INFO;
_priorities[static_cast<int>(level::warn)] = LOG_WARNING;
_priorities[static_cast<int>(level::err)] = LOG_ERR;
_priorities[static_cast<int>(level::critical)] = LOG_CRIT;
_priorities[static_cast<int>(level::off)] = LOG_INFO;
//set ident to be program name if empty
::openlog(_ident.empty()? nullptr:_ident.c_str(), syslog_option, syslog_facility);
}
~syslog_sink()
{
::closelog();
}
syslog_sink(const syslog_sink&) = delete;
syslog_sink& operator=(const syslog_sink&) = delete;
void log(const details::log_msg &msg) override
{
::syslog(syslog_prio_from_level(msg), "%s", msg.raw.str().c_str());
}
void flush() override
{
}
private:
std::array<int, 7> _priorities;
//must store the ident because the man says openlog might use the pointer as is and not a string copy
const std::string _ident;
//
// Simply maps spdlog's log level to syslog priority level.
//
int syslog_prio_from_level(const details::log_msg &msg) const
{
return _priorities[static_cast<int>(msg.level)];
}
};
}
}
#endif
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