-
-/* **********************************************************************
- * Client code
- * **********************************************************************/
-
-/* Function prototypes */
-
-int client(int argc,char *argv[]) {
- xbt_ex_t e;
- gras_socket_t toserver=NULL; /* peer */
-
- gras_socket_t from;
- int ping, pong;
-
- const char *host = "127.0.0.1";
- int port = 4000;
-
- /* 1. Init the GRAS's infrastructure */
- gras_init(&argc, argv);
-
- /* 2. Get the server's address. The command line override defaults when specified */
- if (argc == 3) {
- host=argv[1];
- port=atoi(argv[2]);
- }
-
- INFO2("Launch client (server on %s:%d)",host,port);
-
- /* 3. Wait for the server startup */
- gras_os_sleep(1);
-
- /* 4. Create a socket to speak to the server */
- TRY {
- toserver=gras_socket_client(host,port);
- } CATCH(e) {
- RETHROW0("Unable to connect to the server: %s");
- }
- INFO2("Connected to %s:%d.",host,port);
-
-
- /* 5. Register the messages.
- See, it doesn't have to be done completely at the beginning, only before use */
- register_messages();
-
- /* 6. Keep the user informed of what's going on */
- INFO2(">>>>>>>> Connected to server which is on %s:%d <<<<<<<<",
- gras_socket_peer_name(toserver),gras_socket_peer_port(toserver));
-
- /* 7. Prepare and send the ping message to the server */
- ping = 1234;
- TRY {
- gras_msg_send(toserver, gras_msgtype_by_name("ping"), &ping);
- } CATCH(e) {
- gras_socket_close(toserver);
- RETHROW0("Failed to send PING to server: %s");
- }
- INFO3(">>>>>>>> Message PING(%d) sent to %s:%d <<<<<<<<",
- ping,
- gras_socket_peer_name(toserver),gras_socket_peer_port(toserver));
-
- /* 8. Wait for the answer from the server, and deal with issues */
- TRY {
- gras_msg_wait(6000,gras_msgtype_by_name("pong"),
- &from,&pong);
- } CATCH(e) {
- gras_socket_close(toserver);
- RETHROW0("Why can't I get my PONG message like everyone else: %s");
- }
-
- /* 9. Keep the user informed of what's going on, again */
- INFO3(">>>>>>>> Got PONG(%d) from %s:%d <<<<<<<<",
- pong,
- gras_socket_peer_name(from),gras_socket_peer_port(from));
-
- /* 10. Free the allocated resources, and shut GRAS down */
- gras_socket_close(toserver);
- gras_exit();
- INFO0("Done.");
- return 0;
-} /* end_of_client */