Queries the events reported for the fd corresponding to @tag on @source 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 @source.
This API is only intended to be used by implementations of #GSource. Do not call this API on a #GSource that you did not create.
As the name suggests, this function is not available on Windows.
the tag from g_source_add_unix_fd()
Return: the conditions reported on the fd
2.36
See Implementation
Queries the events reported for the fd corresponding to @tag on @source 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 @source.
This API is only intended to be used by implementations of #GSource. Do not call this API on a #GSource that you did not create.
As the name suggests, this function is not available on Windows.