indexing
	description: "A server for a Unix socket."
	status: "See notice at end of class"
	date: "$Date$"
	revision: "$Revision$"

deferred class interface
	UNIX_SERVER

feature -- Access

	cleanup
			-- Clean close

	close
			-- Close socket.

	execute
			-- Execute transfer loop.
			-- (from SERVER)

	in: UNIX_STREAM_SOCKET
			-- Receive socket

	make (a_path: STRING)
			-- Create an unix socket server bound to address
			-- a_path.

	outflow: like in
			-- Service socket
			-- (from SERVER)

	process_message
			-- Process the received message.
			-- (from SERVER)

	queued: INTEGER
			-- (from SERVER)

	receive
			-- Receive activity of server

	received: ANY
			-- Last message from socket
			-- (from SERVER)

	resend (msg: ANY)
			-- Resend msg.
			-- (from SERVER)

	respond
			-- Respond to client.
			-- (from SERVER)

	set_queued (n: INTEGER)
			-- Set queued to n.
			-- (from SERVER)
		require -- from SERVER
			valid_queue_number: n > 0 and n < 6
		ensure -- from SERVER
			assigned_queued: queued = n
	
feature -- Status report

	address_in_use: BOOLEAN
			-- Address is in use by another socket.
			-- (from SOCKET_RESOURCES)

	address_not_readable: BOOLEAN
			-- Unreadable address
			-- (from SOCKET_RESOURCES)

	already_bound: BOOLEAN
			-- Socket has already been bound.
			-- (from SOCKET_RESOURCES)

	bad_socket_handle: BOOLEAN
			-- Socket descriptor is bad.
			-- (from SOCKET_RESOURCES)

	connect_in_progress: BOOLEAN
			-- Call to connect returned on a non-blocking socket.
			-- (from SOCKET_RESOURCES)

	connection_refused: BOOLEAN
			-- Connection is refused (possibly due to security).
			-- (from SOCKET_RESOURCES)

	dtable_full: BOOLEAN
			-- Descriptor table is full
			-- (from SOCKET_RESOURCES)

	error: STRING
			-- Output a related error message.
			-- (from SOCKET_RESOURCES)

	error_number: INTEGER
			-- Returned error number
			-- (from SOCKET_RESOURCES)

	expired_socket: BOOLEAN
			-- Socket connection has expired.
			-- (from SOCKET_RESOURCES)

	invalid_address: BOOLEAN
			-- Address is not valid.
			-- (from SOCKET_RESOURCES)

	invalid_socket_handle: BOOLEAN
			-- Socket descriptor is not valid.
			-- (from SOCKET_RESOURCES)

	network: BOOLEAN
			-- Socket failed due to network problems.
			-- (from SOCKET_RESOURCES)

	no_buffers: BOOLEAN
			-- No more buffers available
			-- (from SOCKET_RESOURCES)

	no_permission: BOOLEAN
			-- No permission is given to user for this socket.
			-- (from SOCKET_RESOURCES)

	not_connected: BOOLEAN
			-- Socket is not connect.
			-- (from SOCKET_RESOURCES)

	protected_address: BOOLEAN
			-- No access to this address is allowed.
			-- (from SOCKET_RESOURCES)

	protocol_not_supported: BOOLEAN
			-- Protocol is not supported on this platform.
			-- (from SOCKET_RESOURCES)

	socket_family_not_supported: BOOLEAN
			-- Requested family is not supported.
			-- (from SOCKET_RESOURCES)

	socket_in_use: BOOLEAN
			-- Socket is already in use.
			-- (from SOCKET_RESOURCES)

	socket_ok: BOOLEAN
			-- No error
			-- (from SOCKET_RESOURCES)

	socket_would_block: BOOLEAN
			-- Call to read, write, etc would have blocked.
			-- (from SOCKET_RESOURCES)

	zero_option: BOOLEAN
			-- No options provided
			-- (from SOCKET_RESOURCES)
	
feature -- Externals: flags for send, sendto recv and recvfrom socket calls

	c_msgdontroute: INTEGER
			-- Do not route message
			-- (from SOCKET_RESOURCES)

	c_oobmsg: INTEGER
			-- Out of bound message
			-- (from SOCKET_RESOURCES)

	c_peekmsg: INTEGER
			-- Peek message
			-- (from SOCKET_RESOURCES)
	
invariant

		-- from ANY
	reflexive_equality: standard_is_equal (Current)
	reflexive_conformance: conforms_to (Current)

end -- class UNIX_SERVER