lokinet/llarp/util/logging/logstream.hpp
Thomas Winget 7caa87862e standardize include format and pragma once
All #ifndef guards on headers have been removed, I think,
in favor of #pragma once

Headers are now included as `#include "filename"` if the included file
resides in the same directory as the file including it, or any
subdirectory therein.  Otherwise they are included as
`#include <project/top/dir/relative/path/filename>`

The above does not include system/os headers.
2021-03-09 19:01:41 -05:00

58 lines
1.2 KiB
C++

#pragma once
#include "loglevel.hpp"
#include <llarp/util/time.hpp>
#include <memory>
#include <string>
#include <sstream>
namespace llarp
{
/// logger stream interface
struct ILogStream
{
virtual ~ILogStream() = default;
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());
}
/// A blocking call to flush to disk. Should only be called in rare circumstances.
virtual void
ImmediateFlush() = 0;
/// called every end of event loop tick
virtual void
Tick(llarp_time_t now) = 0;
};
using ILogStream_ptr = std::unique_ptr<ILogStream>;
} // namespace llarp