Log File Class

LogFile writes time-stamped lines to a file. WriteLine() is thread safe.

Contents

Overview

LogFile is built on std::ofstream. WriteLine() formats the time stamp, message and new line and writes them under a mutex, so several threads can share one log without mixing lines.

LogFile log;
log.Open("server.log");                 // Append, creating the file if needed
log.WriteLine("Server started on port 8443");

Functions

bool LogFile::Open(const std::string &fname)

Opens for append, creating the file. Returns true if successful.

bool LogFile::OverWrite(const std::string &fname) / Create

Creates or truncates the file.

bool LogFile::WriteLine(std::string_view message)

Writes "date time message" and a new line, then flushes.

bool LogFile::Write(std::string_view text)

Writes text as-is.

LogFile &LogFile::operator<<(const T &value)

Stream insertion for building a line. Not thread safe across calls.

void LogFile::Close() / bool Flush() / bool IsOpen() const

File control.