lokinet/llarp/util/logstream.hpp
2019-06-13 09:26:34 -04:00

48 lines
1.1 KiB
C++

#ifndef LLARP_UTIL_LOG_STREAM_HPP
#define LLARP_UTIL_LOG_STREAM_HPP
#include <memory>
#include <string>
#include <util/loglevel.hpp>
#include <sstream>
#include <util/time.hpp>
namespace llarp
{
/// logger stream interface
struct ILogStream
{
virtual ~ILogStream()
{
}
virtual void
PreLog(std::stringstream& out, LogLevel lvl, const char* fname, int lineno,
const std::string& nodename) const = 0;
virtual void
Print(LogLevel lvl, const char* filename, const std::string& msg) = 0;
virtual void
PostLog(std::stringstream& out) const = 0;
virtual void
AppendLog(LogLevel lvl, const char* fname, int lineno,
const std::string& nodename, const std::string msg)
{
std::stringstream ss;
PreLog(ss, lvl, fname, lineno, nodename);
ss << msg;
PostLog(ss);
Print(lvl, fname, ss.str());
}
/// called every end of event loop tick
virtual void
Tick(llarp_time_t now) = 0;
};
using ILogStream_ptr = std::unique_ptr< ILogStream >;
} // namespace llarp
#endif