void log(
LogLevel level,
std::ostream& stream,
std::mutex& mutex,
const char* file,
unsigned line,
const char* function,
const crossbow::string& str,
Args&&... args) {
if (config.level > level) return;
boost::format formatter(str.c_str());
LogFormatter<Args...> fmt;
fmt.format(formatter, std::forward<Args>(args)...);
std::lock_guard<std::mutex> _(mutex);
stream << formatter.str();
stream << " (in " << function << " at " << file << ':' << line << ')' << std::endl;
}
void FileLogAppender::write(LogFormatter &format, const LogEntry &entry) {
std::ostringstream ostr;
format.format(ostr, entry);
ostr << "\r\n";
auto str = ostr.str();
truncate(str.length());
logging_.write(str.c_str(), str.length());
logging_.flush();
}
void DebugOutputLogSink::write(LogFormatter &format, LogEntry const &record) {
std::ostringstream ostr;
format.format(ostr, record);
::OutputDebugStringA(ostr.str().c_str());
}
void format(boost::format& f, Head h, Tail&&... tail) const {
f % h;
base.format(f, std::forward<Tail>(tail)...);
}
