+++ /dev/null
-/* ping - ping/pong demo of GRAS features */
-
-/* Copyright (c) 2006, 2007, 2009, 2010. The SimGrid Team.
- * All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#include "ping.h"
-
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(Ping);
-
-/* Global private data */
-typedef struct {
- xbt_socket_t sock;
- int endcondition;
-} server_data_t;
-
-
-static int server_cb_ping_handler(gras_msg_cb_ctx_t ctx, void *payload)
-{
- /* 1. Get the payload into the msg variable, and retrieve my caller */
- int msg = *(int *) payload;
- xbt_socket_t expeditor = gras_msg_cb_ctx_from(ctx);
-
- /* 2. Retrieve the server's state (globals) */
-
- server_data_t *globals = (server_data_t *) gras_userdata_get();
- globals->endcondition = 0;
-
- /* 3. Log which client connected */
- XBT_INFO(">>>>>>>> Got message PING(%d) from %s:%d <<<<<<<<",
- msg,
- xbt_socket_peer_name(expeditor),
- xbt_socket_peer_port(expeditor));
-
- /* 4. Change the value of the msg variable */
- msg = 4321;
- /* 5. Send it back as payload of a pong message to the expeditor */
- TRY {
- gras_msg_send(expeditor, "pong", &msg);
-
- /* 6. Deal with errors: add some details to the exception */
- }
- CATCH_ANONYMOUS {
- gras_socket_close(globals->sock);
- RETHROWF("Unable answer with PONG: %s");
- }
-
- XBT_INFO(">>>>>>>> Answered with PONG(4321) <<<<<<<<");
-
- /* 7. Set the endcondition boolean to true (and make sure the server stops after receiving it). */
- globals->endcondition = 1;
-
- /* 8. Tell GRAS that we consummed this message */
- return 0;
-} /* end_of_server_cb_ping_handler */
-
-int server(int argc, char *argv[])
-{
- server_data_t *globals;
-
- int port = 4000;
-
- /* 1. Init the GRAS infrastructure and declare my globals */
- gras_init(&argc, argv);
- globals = gras_userdata_new(server_data_t);
-
- /* 2. Get the port I should listen on from the command line, if specified */
- if (argc == 2) {
- port = atoi(argv[1]);
- }
-
- XBT_INFO("Launch server (port=%d)", port);
-
- /* 3. Create my master socket */
- globals->sock = gras_socket_server(port);
-
- /* 4. Register the known messages. This function is called twice here, but it's because
- this file also acts as regression test, no need to do so yourself of course. */
- ping_register_messages();
- ping_register_messages(); /* just to make sure it works ;) */
-
- /* 5. Register my callback */
- gras_cb_register("ping", &server_cb_ping_handler);
-
- XBT_INFO(">>>>>>>> Listening on port %d <<<<<<<<",
- xbt_socket_my_port(globals->sock));
- globals->endcondition = 0;
-
- /* 6. Wait up to 20 minutes for an incoming message to handle */
- gras_msg_handle(20.0);
-
- /* 7. Housekeeping */
- if (!globals->endcondition)
- XBT_WARN
- ("An error occured, the endcondition was not set by the callback");
-
- /* 8. Free the allocated resources, and shut GRAS down */
- gras_socket_close(globals->sock);
- free(globals);
- XBT_INFO("Done.");
- gras_exit();
-
- return 0;
-} /* end_of_server */
