query_unix_fd

Queries the events reported for the file descriptor corresponding to tag on this during the last poll.

The return value of this function is only defined when the function is called from the check or dispatch functions for this.

This API is only intended to be used by implementations of [struct@GLib.Source]. Do not call this API on a [struct@GLib.Source] that you did not create.

As the name suggests, this function is not available on Windows.

Parameters:

this	a source
tag	the tag from [method@GLib.Source.add_unix_fd]

Returns:

the conditions reported on the file descriptor