class ftp_client :The ftp client is a user session that may even span several connections. However, only one server is connected at once.?event_system:Unixqueue.event_system -> ?onempty:unit -> unit -> unit ->object..end
Uq_engines.engine The FTP client is also an engine. The engine can be in one of four
states:`Working _: The client is still active. The int
argument is currently meaningless.`Done(): The client has been terminated.`Error e: A violation of the FTP protocol happened, or another
exception e occurred`Aborted: The abort method was calledmethod add : ?onsuccess:(unit -> unit) ->
?onerror:(exn -> unit) -> ftp_method -> unit
When the method could be executed successfully, the function
onsuccess is called. (By default, this function does nothing.)
If the FTP server indicates an error, the
function onerror is called instead. The exception is either
FTP_method_temp_failure or FTP_method_perm_failure.
The default for onerror is to raise the exception again,
which has the effect of setting the engine state to `Error.
This effectively stops the FTP client. (Hard errors
like socket problems or protocol violations are not reported this
way, but by directly setting the engine state to `Error.)
method run : unit -> unitUnixqueue.run