A bitmask of events that Cogl may need to wake on for a file descriptor. Note that these all have the same values as the corresponding defines for the poll function call on Unix so they may be directly passed to poll.
error condition
hung up (the connection has been broken, usually for pipes and sockets).
there is data to read
invalid request. The file descriptor is not open.
there is urgent data to read.
data can be written (without blocking)
A bitmask of events that Cogl may need to wake on for a file descriptor. Note that these all have the same values as the corresponding defines for the poll function call on Unix so they may be directly passed to poll.