27 lines
862 B
Scheme
Executable File
27 lines
862 B
Scheme
Executable File
#!/usr/bin/env scheme-script
|
|
|
|
(import (ikarus))
|
|
|
|
;;; very simple demo for how to connect to a server,
|
|
;;; send a request and receive a response.
|
|
|
|
;;; Here, we use an asynchronous IO socket. We wrap the whole
|
|
;;; operation with an exception handler to handle the would-block
|
|
;;; conditions. If we do get a would-block condition, we just
|
|
;;; return, causing the read/write operation to be restarted until
|
|
;;; it succeeds. Pretty lame at this point, but it works.
|
|
|
|
(define (http-cat host)
|
|
(let-values ([(ip op) (tcp-connect-nonblocking host "http")])
|
|
(let ([op (transcoded-port op (native-transcoder))]
|
|
[ip (transcoded-port ip (native-transcoder))])
|
|
(display "GET /\n" op)
|
|
(display (get-string-all ip))
|
|
(newline)
|
|
(close-input-port ip)
|
|
(close-output-port op))))
|
|
|
|
(http-cat "www.google.com")
|
|
;(http-cat "127.0.0.1")
|
|
|