Function getPollingBasedDeviceList

plugins/usb/usb-helpers.cpp:165–182

}

static std::vector<USBDeviceInfo> getPollingBasedDeviceList()
{
	// Polling can be very expensive
	// Perform this operation at most once every 10 seconds
	static const int timeout = 10;
	static std::vector<USBDeviceInfo> deviceList = {};
	static std::chrono::high_resolution_clock::time_point lastUpdate = {};

	std::lock_guard<std::mutex> lock(mutex);
	auto now = std::chrono::high_resolution_clock::now();
	if (std::chrono::duration_cast<std::chrono::seconds>(now - lastUpdate)
		    .count() >= timeout) {
		deviceList = pollUSBDevices();
		lastUpdate = now;
	}

	return deviceList;
}

std::vector<USBDeviceInfo> GetUSBDevices()
{