Adds a file descriptor to the set of file descriptors polled for
this source. This is usually combined with g_source_new() to add an
event source. The event source's check function will typically test
the revents field in the GPollFD struct and return TRUE if events need
to be processed.
Using this API forces the linear scanning of event sources on each
main loop iteration. Newly-written event sources should try to use
g_source_add_unix_fd() instead of this API.
Adds a file descriptor to the set of file descriptors polled for this source. This is usually combined with g_source_new() to add an event source. The event source's check function will typically test the revents field in the GPollFD struct and return TRUE if events need to be processed. Using this API forces the linear scanning of event sources on each main loop iteration. Newly-written event sources should try to use g_source_add_unix_fd() instead of this API.