9 int server_kill_cb(gras_msg_cb_ctx_t ctx, void *payload) {
10 gras_socket_t client = gras_msg_cb_ctx_from(ctx);
11 server_data_t *globals=(server_data_t*)gras_userdata_get();
13 fprintf(stderr,"Argh, killed by %s:%d! Bye folks...\n",
14 gras_socket_peer_name(client), gras_socket_peer_port(client));
19 } /* end_of_kill_callback */
21 int server_hello_cb(gras_msg_cb_ctx_t ctx, void *payload) {
22 gras_socket_t client = gras_msg_cb_ctx_from(ctx);
24 fprintf(stderr,"Cool, we received the message from %s:%d.\n",
25 gras_socket_peer_name(client), gras_socket_peer_port(client));
28 } /* end_of_hello_callback */
30 int server(int argc, char *argv[]) {
31 gras_socket_t mysock; /* socket on which I listen */
32 server_data_t *globals;
34 gras_init(&argc,argv);
36 globals=gras_userdata_new(server_data_t*);
39 gras_msgtype_declare("hello", NULL);
40 gras_msgtype_declare("kill", NULL);
41 mysock = gras_socket_server(atoi(argv[1]));
43 gras_cb_register("hello",&server_hello_cb);
44 gras_cb_register("kill",&server_kill_cb);
46 while (!globals->killed) {
47 gras_msg_handle(-1); /* blocking */
54 int client(int argc, char *argv[]) {
55 gras_socket_t mysock; /* socket on which I listen */
56 gras_socket_t toserver; /* socket used to write to the server */
58 gras_init(&argc,argv);
60 gras_msgtype_declare("hello", NULL);
61 gras_msgtype_declare("kill", NULL);
62 mysock = gras_socket_server_range(1024, 10000, 0, 0);
64 fprintf(stderr,"Client ready; listening on %d\n", gras_socket_my_port(mysock));
66 gras_os_sleep(1.5); /* sleep 1 second and half */
67 toserver = gras_socket_client(argv[1], atoi(argv[2]));
69 gras_msg_send(toserver,"hello", NULL);
70 fprintf(stderr,"we sent the data to the server on %s. Let's do it again for fun\n", gras_socket_peer_name(toserver));
71 gras_msg_send(toserver,"hello", NULL);
73 fprintf(stderr,"Ok. Enough. Have a rest, and then kill the server\n");
74 gras_os_sleep(5); /* sleep 1 second and half */
75 gras_msg_send(toserver,"kill", NULL);