(and error is set)
UnixFDList.append
int append(int fd)Adds a file descriptor to list.
The file descriptor is duplicated using dup(). You keep your copy of the descriptor and the copy contained in list will be closed when list is finalized.
A possible cause of failure is exceeding the per-process or system-wide file descriptor limit.
The index of the file descriptor in the list is returned. If you use this index with [gio.unix_fdlist.UnixFDList.get] then you will receive back a duplicated copy of the same file descriptor.
Parameters
fd | a valid open file descriptor |
Returns
the index of the appended fd in case of success, else -1
Throws
[ErrorWrap]