DelayDaemon

Small program that can be used to add delay to input events.

It grabs all input events from the specified input device and blocks them from being passed to other applications. A new virtual input device is created and grabbed events are passed to this device after a certain delay.

It is possible to add a fixed delay to all events (by using the same value for min and max) or a range of possible delay times which leads to a distribution. For now, only an even distribution is implemented.

The delays for click events and movement events can be set separately. Note that a varying delay for movement events leads to stuttering mouse movement.

The delay times can also be changed during runtime using a FIFO.

Usage:

DelayDaemon [event_handle] [min_delay_click] [max_delay_click] [min_delay_move] [max_delay_move] [fifo_path]

• event_handle: path to input device, e.g. /dev/input/event5
• min_delay_click: minimum delay to be added to mouse clicks (in milliseconds)
• max_delay_click: maximum delay to be added to mouse clicks (in milliseconds)
• min_delay_move: minimum delay to be added to mouse movement (in milliseconds)
• max_delay_move: maximum delay to be added to mouse movement (in milliseconds)
• fifo_path: path to a FIFO used to remotely set delay times during runtime (optional)

Remotely Controlling Delay Times

If fifo_path is set, a FIFO is created at this path. By writing into this FIFO (which can be done with normal file operations), delay times can be changed during runtime. The new values have to be written to the FIFO seperated by whitespaces and all four values have to be set.

Example:

./DelayDaemon /dev/input/event5 100 200 0 0 /tmp/delaydaemon
echo "200 300 0 0" > /tmp/delaydaemon

This would start the program with a click delay of 100-200 ms and then increase the delay to 200-300 ms.

Future Work:

• add the possibility to use different distributions (like gaussian)