ObjFW  Check-in [323ec38f36]

/**
 * @brief The standard error as an OFStream.
 */
extern OFStdIOStream *_Nullable OFStdErr;

/**
 * @brief Log the specified printf-style format to @ref OFStdErr.
 * @brief Logs the specified printf-style format to @ref OFStdErr.
 *
 * This prefixes the output with the date, timestamp, process name and PID and
 * allows `%@` as a printf-style formatted to print objects.
 * This prefixes the output with the date, timestamp, process name and PID.
 *
 * @param format The format for the line to log. See @ref OFStream#writeFormat:.
 */
extern void OFLog(OFConstantString *format, ...);

/**
 * @brief Logs the specified printf-style format to @ref OFStdErr.
 *
 * This prefixes the output with the date, timestamp, process name and PID.
 *
 * @param format The format for the line to log. See @ref OFStream#writeFormat:.
 * @param arguments The arguments for the format
 */
extern void OFLogV(OFConstantString *format, va_list arguments);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

	[OFStdErr dealloc];
}
#endif

void
OFLog(OFConstantString *format, ...)
{
	va_list arguments;

	va_start(arguments, format);
	OFLogV(format, arguments);
	va_end(arguments);
}

void
OFLogV(OFConstantString *format, va_list arguments)
{
	void *pool = objc_autoreleasePoolPush();
	OFDate *date;
	OFString *dateString, *me, *msg;
	va_list arguments;

	date = [OFDate date];
	dateString = [date localDateStringWithFormat: @"%Y-%m-%d %H:%M:%S"];
#ifdef OF_HAVE_FILES
	me = [OFApplication programName].lastPathComponent;
#else
	me = [OFApplication programName];
#endif

	va_start(arguments, format);
	msg = [[[OFString alloc] initWithFormat: format
				      arguments: arguments] autorelease];
	va_end(arguments);

	[OFStdErr writeFormat: @"[%@.%03d %@(%d)] %@\n", dateString,
			       date.microsecond / 1000, me, getpid(), msg];

	objc_autoreleasePoolPop(pool);
}