3 XBT_LOG_NEW_DEFAULT_CATEGORY(test,"My little example");
10 int server_kill_cb(gras_msg_cb_ctx_t ctx, void *payload) {
11 double delay = *(double*)payload;
12 gras_socket_t client = gras_msg_cb_ctx_from(ctx);
13 server_data_t *globals=(server_data_t*)gras_userdata_get();
15 CRITICAL3("Argh, %s:%d gave me %.2f seconds before suicide!",
16 gras_socket_peer_name(client), gras_socket_peer_port(client),delay);
18 CRITICAL0("Bye folks...");
24 } /* end_of_kill_callback */
26 int server_hello_cb(gras_msg_cb_ctx_t ctx, void *payload) {
27 char *msg=*(char**)payload;
28 gras_socket_t client = gras_msg_cb_ctx_from(ctx);
30 INFO3("Cool, we received a message from %s:%d. Here it is: \"%s\"",
31 gras_socket_peer_name(client), gras_socket_peer_port(client),
35 } /* end_of_hello_callback */
37 void message_declaration(void) {
38 gras_msgtype_declare("kill", gras_datadesc_by_name("double"));
39 gras_msgtype_declare("hello", gras_datadesc_by_name("string"));
43 int server(int argc, char *argv[]) {
44 gras_socket_t mysock; /* socket on which I listen */
45 server_data_t *globals;
47 gras_init(&argc,argv);
49 globals=gras_userdata_new(server_data_t*);
52 message_declaration();
53 mysock = gras_socket_server(atoi(argv[1]));
55 gras_cb_register(gras_msgtype_by_name("hello"),&server_hello_cb);
56 gras_cb_register(gras_msgtype_by_name("kill"),&server_kill_cb);
58 while (!globals->killed) {
59 gras_msg_handle(-1); /* blocking */
66 int client(int argc, char *argv[]) {
67 gras_socket_t mysock; /* socket on which I listen */
68 gras_socket_t toserver; /* socket used to write to the server */
70 gras_init(&argc,argv);
72 message_declaration();
73 mysock = gras_socket_server_range(1024, 10000, 0, 0);
75 VERB1("Client ready; listening on %d", gras_socket_my_port(mysock));
77 gras_os_sleep(1.5); /* sleep 1 second and half */
78 toserver = gras_socket_client(argv[1], atoi(argv[2]));
80 char *hello_payload="Nice to meet you";
81 gras_msg_send(toserver,gras_msgtype_by_name("hello"), &hello_payload);
82 INFO1("we sent the hello to the server on %s.", gras_socket_peer_name(toserver));
84 double kill_payload=0.5;
85 gras_msg_send(toserver,gras_msgtype_by_name("kill"), &kill_payload);
86 INFO0("Gave the server more 0.5 second to live");