A bitwise combination representing a condition to watch for on an
event source.
G_IO_IN
There is data to read.
G_IO_OUT
Data can be written (without blocking).
G_IO_PRI
There is urgent data to read.
G_IO_ERR
Error condition.
G_IO_HUP
Hung up (the connection has been broken, usually for
pipes and sockets).
G_IO_NVAL
Invalid request. The file descriptor is not open.
A bitwise combination representing a condition to watch for on an event source. G_IO_IN There is data to read. G_IO_OUT Data can be written (without blocking). G_IO_PRI There is urgent data to read. G_IO_ERR Error condition. G_IO_HUP Hung up (the connection has been broken, usually for pipes and sockets). G_IO_NVAL Invalid request. The file descriptor is not open.