add_poll
Description:
Adds a file descriptor to the set of file descriptors polled for this context.
This will very seldom be used directly. Instead a typical event source will use `g_source_add_unix_fd()` instead.
Parameters:
| this |
a main context (or `NULL` for the global-default main context) |
| fd |
a [struct@GLib.PollFD] structure holding information about a file descriptor to watch. |
| priority |
the priority for this file descriptor which should be the same as the priority used for [method@GLib.Source.attach] to ensure that the file descriptor is polled whenever the results may be needed. |