3 /* GridRPC - Fake Grid RPC thingy doing matrix multiplications (as expected)*/
5 /* Copyright (c) 2005 Martin Quinson. All rights reserved. */
7 /* This program is free software; you can redistribute it and/or modify it
8 * under the terms of the license (GNU LGPL) which comes with this package. */
10 #define GRAS_DEFINE_TYPE_EXTERN
11 #include "xbt/matrix.h"
14 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(MatMult);
17 typedef xbt_matrix_t request_t[2];
18 static int server_cb_request_handler(gras_msg_cb_ctx_t ctx,
22 gras_socket_t expeditor = gras_msg_cb_ctx_from(ctx);
24 /* 1. Get the payload into the data variable */
25 xbt_matrix_t *request = (xbt_matrix_t *) payload_data;
28 /* 2. Do the computation */
29 result = xbt_matrix_double_new_mult(request[0], request[1]);
31 /* 3. Send it back as payload of a pong message to the expeditor */
32 gras_msg_send(expeditor, "answer", &result);
35 xbt_matrix_free(request[0]);
36 xbt_matrix_free(request[1]);
37 xbt_matrix_free(result);
40 } /* end_of_server_cb_request_handler */
42 int server(int argc, char *argv[])
45 gras_socket_t sock = NULL;
48 /* 1. Init the GRAS infrastructure */
49 gras_init(&argc, argv);
51 /* 2. Get the port I should listen on from the command line, if specified */
56 /* 3. Create my master socket */
57 INFO1("Launch server (port=%d)", port);
59 sock = gras_socket_server(port);
62 RETHROW0("Unable to establish a server socket: %s");
65 /* 4. Register the known messages and payloads. */
66 mmrpc_register_messages();
68 /* 5. Register my callback */
69 gras_cb_register("request", &server_cb_request_handler);
71 /* 6. Wait up to 10 minutes for an incomming message to handle */
72 gras_msg_handle(600.0);
74 /* 7. Free the allocated resources, and shut GRAS down */
75 gras_socket_close(sock);