1 /* GridRPC - Fake Grid RPC thingy doing matrix multiplications (as expected)*/
3 /* Copyright (c) 2006, 2007, 2009, 2010. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
9 #define XBT_DEFINE_TYPE_EXTERN
10 #include "xbt/matrix.h"
13 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(MatMult);
16 typedef xbt_matrix_t request_t[2];
17 static int server_cb_request_handler(gras_msg_cb_ctx_t ctx,
21 xbt_socket_t expeditor = gras_msg_cb_ctx_from(ctx);
23 /* 1. Get the payload into the data variable */
24 xbt_matrix_t *request = (xbt_matrix_t *) payload_data;
27 /* 2. Do the computation */
28 result = xbt_matrix_double_new_mult(request[0], request[1]);
30 /* 3. Send it back as payload of a pong message to the expeditor */
31 gras_msg_send(expeditor, "answer", &result);
34 xbt_matrix_free(request[0]);
35 xbt_matrix_free(request[1]);
36 xbt_matrix_free(result);
39 } /* end_of_server_cb_request_handler */
41 static xbt_socket_t try_gras_socket_server(int port)
43 volatile xbt_socket_t sock = NULL;
45 sock = gras_socket_server(port);
48 RETHROWF("Unable to establish a server socket: %s");
53 int server(int argc, char *argv[])
55 xbt_socket_t sock = NULL;
58 /* 1. Init the GRAS infrastructure */
59 gras_init(&argc, argv);
61 /* 2. Get the port I should listen on from the command line, if specified */
66 /* 3. Register the known messages and payloads. */
67 mmrpc_register_messages();
69 /* 4. Register my callback */
70 gras_cb_register("request", &server_cb_request_handler);
72 /* 5. Create my master socket */
73 XBT_INFO("Launch server (port=%d)", port);
74 sock = try_gras_socket_server(port);
76 /* 6. Wait up to 10 minutes for an incoming message to handle */
77 gras_msg_handle(600.0);
79 /* 7. Free the allocated resources, and shut GRAS down */
80 gras_socket_close(sock);