GIOCondition

A bitwise combination representing a condition to watch for on an event source.

Values

ValueMeaning
IN1

There is data to read.

OUT4

Data can be written (without blocking).

PRI2

There is urgent data to read.

ERR8

Error condition.

HUP16

Hung up (the connection has been broken, usually for pipes and sockets).

NVAL32

Invalid request. The file descriptor is not open.