Gets a file descriptor out of list.
index_ specifies the index of the file descriptor to get. It is a
programmer error for index_ to be out of range; see
g_unix_fd_list_get_length().
The file descriptor is duplicated using dup() and set as
close-on-exec before being returned. You must call close() on it
when you are done.
A possible cause of failure is exceeding the per-process or
system-wide file descriptor limit.
Since 2.24
Gets a file descriptor out of list. index_ specifies the index of the file descriptor to get. It is a programmer error for index_ to be out of range; see g_unix_fd_list_get_length(). The file descriptor is duplicated using dup() and set as close-on-exec before being returned. You must call close() on it when you are done. A possible cause of failure is exceeding the per-process or system-wide file descriptor limit. Since 2.24