|  | open Thrift | 
|  |  | 
|  | class t port = | 
|  | object | 
|  | inherit Transport.server_t | 
|  | val mutable sock = None | 
|  | method listen = | 
|  | let s = Unix.socket Unix.PF_INET Unix.SOCK_STREAM 0 in | 
|  | sock <- Some s; | 
|  | Unix.bind s (Unix.ADDR_INET (Unix.inet_addr_any, port)); | 
|  | Unix.listen s 256 | 
|  | method close = | 
|  | match sock with | 
|  | Some s -> Unix.shutdown s Unix.SHUTDOWN_ALL; Unix.close s; | 
|  | sock <- None | 
|  | | _ -> () | 
|  | method acceptImpl = | 
|  | match sock with | 
|  | Some s -> let (fd,_) = Unix.accept s in | 
|  | new TChannelTransport.t (Unix.in_channel_of_descr fd,Unix.out_channel_of_descr fd) | 
|  | | _ -> raise (Transport.E (Transport.NOT_OPEN,"TServerSocket: Not listening but tried to accept")) | 
|  | end |