Monitors fd for the IO events in events.
The tag returned by this function can be used to remove or modify the monitoring of the fd using remove_unix_fd or modify_unix_fd.
It is not necessary to remove the fd before destroying the source; it will be cleaned up automatically.
This API is only intended to be used by implementations of SocketSource. Do not call this API on a SocketSource that you did not create.
As the name suggests, this function is not available on Windows.
| this | |
| fd |
the fd to monitor |
| events |
an event mask |
|
an opaque tag |