GLibPollFD

structGPollFD{
gintfd;
gushortevents;
gushortrevents;
}

Represents a file descriptor, which events to poll for, and which events occurred.

fd: gint: The file descriptor to poll (or a HANDLE on Win32).
events: gushort: A bitwise combination from GIOCondition, specifying which events should be polled for. Typically for reading from a file descriptor you would use G_IO_IN | G_IO_HUP | G_IO_ERR, and for writing you would use G_IO_OUT | G_IO_ERR.
revents: gushort: A bitwise combination of flags from GIOCondition, returned from the poll() function to indicate which events occurred.