Function parseDuration

flow/flow.cpp:208–240

Parses a duration with one of the following suffixes and returns the duration in seconds s - seconds m - minutes h - hours d - days

// h - hours
// d - days
Optional<uint64_t> parseDuration(std::string const& str, std::string const& defaultUnit) {
	char* endptr;
	uint64_t ret = strtoull(str.c_str(), &endptr, 10);

	if (endptr == str.c_str()) {
		return Optional<uint64_t>();
	}

	std::string unit;
	if (*endptr == '\0') {
		if (!defaultUnit.empty()) {
			unit = defaultUnit;
		} else {
			return Optional<uint64_t>();
		}
	} else {
		unit = endptr;
	}

	if (!unit.compare("s")) {
		// Nothing to do
	} else if (!unit.compare("m")) {
		ret *= 60;
	} else if (!unit.compare("h")) {
		ret *= 60 * 60;
	} else if (!unit.compare("d")) {
		ret *= 24 * 60 * 60;
	} else {
		return Optional<uint64_t>();
	}

	return ret;
}

int vsformat(std::string& outputString, const char* form, va_list args) {
	char buf[200];