17 TCP: Unit and Signature
The net/tcp-sig and net/tcp-unit libraries define a tcp^ signature and tcp@ implementation, where the implementation uses racket/tcp.
Some units in the "net" collection import tcp^, so that they can be used with transports other than plain TCP. For example, url@ imports tcp^.
See also tcp-redirect and make-ssl-tcp@.
17.1 TCP Signature
| (require net/tcp-sig) | package: net-lib |
signature
tcp^ : signature
procedure
(tcp-listen port-no [ max-allow-wait reuse? hostname]) → tcp-listener?
port-no :
(and/c exact-nonnegative-integer? (integer-in 1 65535)) max-allow-wait : exact-nonnegative-integer? = 4 reuse? : any/c = #f hostname : (or/c string? false/c) = #f Like tcp-listen from racket/tcp.
procedure
(tcp-connect hostname port-no [ local-hostname local-port-no]) →
input-port? output-port? hostname : string?
port-no :
(and/c exact-nonnegative-integer? (integer-in 1 65535)) local-hostname : (or/c string? false/c) = #f
local-port-no :
(or/c (and/c exact-nonnegative-integer? (integer-in 1 65535)) false/c) = #f Like tcp-connect from racket/tcp.
procedure
(tcp-connect/enable-break hostname port-no [ local-hostname] local-port-no)
→
input-port? output-port? hostname : string?
port-no :
(and/c exact-nonnegative-integer? (integer-in 1 65535)) local-hostname : (or/c string? false/c) = #f
local-port-no :
(or/c (and/c exact-nonnegative-integer? (integer-in 1 65535)) false/c) Like tcp-connect/enable-break from racket/tcp.
procedure
(tcp-accept listener) →
input-port? output-port? listener : tcp-listener? Like tcp-accept from racket/tcp.
procedure
(tcp-accept/enable-break listener) →
input-port? output-port? listener : tcp-listener? Like tcp-accept/enable-break from racket/tcp.
procedure
(tcp-accept-ready? listener) → boolean?
listener : tcp-listener? Like tcp-accept-ready? from racket/tcp.
procedure
listener : tcp-listener? Like tcp-close from racket/tcp.
procedure
(tcp-listener? v) → boolean?
v : any/c Like tcp-listener? from racket/tcp.
procedure
(tcp-abandon-port tcp-port) → void?
tcp-port : port? Like tcp-abandon-port from racket/tcp.
procedure
(tcp-addresses tcp-port [port-numbers?])
→
(or/c (values string? string?) (values string? (integer-in 1 65535) string? (integer-in 1 65535))) tcp-port : port? port-numbers? : any/c = #f Like tcp-addresses from racket/tcp.
17.2 TCP Unit
| (require net/tcp-unit) | package: net-lib |
value
tcp@ : unit?
Imports nothing and exports tcp^, implemented using
racket/tcp.