mirror of
https://github.com/justinethier/cyclone.git
synced 2025-05-23 20:15:05 +02:00
98 lines
3.7 KiB
Scheme
98 lines
3.7 KiB
Scheme
;; Sockets library
|
|
(define-library (106) ;(srfi 106)
|
|
(include-c-header "<sys/types.h>")
|
|
(include-c-header "<sys/socket.h>")
|
|
(include-c-header "<netinet/in.h>")
|
|
(include-c-header "<arpa/inet.h>")
|
|
(include-c-header "<netdb.h>")
|
|
(import (scheme base))
|
|
(export
|
|
make-client-socket make-server-socket socket?
|
|
socket-accept socket-send socket-recv
|
|
socket-shutdown socket-close
|
|
socket-input-port
|
|
socket-output-port
|
|
call-with-socket
|
|
address-family address-info
|
|
socket-domain ip-protocol
|
|
message-type shutdown-method
|
|
socket-merge-flags
|
|
socket-purge-flags
|
|
*af-unspec* *af-inet* *af-inet6*
|
|
*sock-stream* *sock-dgram*
|
|
*ai-canonname* *ai-numerichost*
|
|
*ai-v4mapped* *ai-all* *ai-addrconfig*
|
|
*ipproto-ip* *ipproto-tcp* *ipproto-udp*
|
|
*msg-peek* *msg-oob* *msg-waitall*
|
|
*shut-rd* *shut-wr* *shut-rdwr*
|
|
)
|
|
(begin
|
|
;; see: http://gnosis.cx/publish/programming/sockets.html
|
|
(define-c %make-client-socket
|
|
"(void *data, int argc, closure _, object k,
|
|
object node, object service,
|
|
object family, object socktype,
|
|
object flags, object protocol)"
|
|
;; TODO: how to pack socket objects?
|
|
;; can we put sock fd in a vector, along with an identifier?
|
|
" int sock;
|
|
struct sockaddr_in addr;
|
|
int af = obj_obj2int(family),
|
|
type = obj_obj2int(socktype),
|
|
proto = obj_obj2int(protocol);
|
|
// TODO: put trace statement here
|
|
// TODO: type check args to this function
|
|
|
|
if ((sock = socket(af, type, proto)) < 0) {
|
|
Cyc_rt_raise_msg(data, \"Failed to create socket\");
|
|
}
|
|
memset(&addr 0, sizeof(addr)); /* Clear struct */
|
|
// TODO: flags?
|
|
addr = af;
|
|
addr = inet_addr(string_str(node)); /* IP address */
|
|
addr = htons(obj_obj2int(service)); /* server port */
|
|
/* Establish connection */
|
|
if (connect(sock,
|
|
(struct sockaddr *) &addr
|
|
sizeof(addr)) < 0) {
|
|
Cyc_rt_raise_msg(data, \"Failed to connect with server\");
|
|
}
|
|
// TODO: pack socket, and pass that to k:
|
|
return_closcall1(data, k, obj_int2obj()); ")
|
|
|
|
(define-syntax make-const
|
|
(er-macro-transformer
|
|
(lambda (expr rename compare)
|
|
(let* ((base-str (symbol->string (cadr expr)))
|
|
(fsym (string->symbol (string-append "%" base-str "%")))
|
|
(vsym (string->symbol (string-append "*" base-str "*")))
|
|
(const-str (caddr expr)))
|
|
`(begin
|
|
(define ,vsym (,fsym))
|
|
(define-c ,fsym
|
|
"(void *data, int argc, closure _, object k)"
|
|
,(string-append
|
|
"return_closcall1(data, k, obj_int2obj(" const-str ")); ")))))))
|
|
|
|
(make-const af-unspec "AF_UNSPEC" )
|
|
(make-const af-inet "AF_INET" )
|
|
(make-const af-inet6 "AF_INET6" )
|
|
(make-const sock-stream "SOCK_STREAM" )
|
|
(make-const sock-dgram "SOCK_DGRAM" )
|
|
(make-const ai-canonname "AI_CANONNAME" )
|
|
(make-const ai-numerichost "AI_NUMERICHOST")
|
|
(make-const ai-v4mapped "AI_V4MAPPED" )
|
|
(make-const ai-all "AI_ALL" )
|
|
(make-const ai-addrconfig "AI_ADDRCONFIG" )
|
|
(make-const msg-peek "MSG_PEEK" )
|
|
(make-const msg-oob "MSG_OOB" )
|
|
(make-const msg-waitall "MSG_WAITALL" )
|
|
(make-const shut-rd "SHUT_RD" )
|
|
(make-const shut-wr "SHUT_WR" )
|
|
(make-const shut-rdwr "SHUT_RDWR" )
|
|
|
|
(define *ipproto-ip* 0)
|
|
(define *ipproto-tcp* 6)
|
|
(define *ipproto-udp* 17)
|
|
)
|
|
)
|