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,
21 gras_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);
37 gras_socket_close(expeditor);
40 } /* end_of_server_cb_request_handler */
42 int server (int argc,char *argv[]) {
44 gras_socket_t sock=NULL;
47 /* 1. Init the GRAS infrastructure */
48 gras_init(&argc,argv);
50 /* 2. Get the port I should listen on from the command line, if specified */
55 /* 3. Create my master socket */
56 INFO1("Launch server (port=%d)", port);
58 sock = gras_socket_server(port);
60 RETHROW0("Unable to establish a server socket: %s");
63 /* 4. Register the known messages and payloads. */
64 mmrpc_register_messages();
66 /* 5. Register my callback */
67 gras_cb_register("request",&server_cb_request_handler);
69 /* 6. Wait up to 10 minutes for an incomming message to handle */
70 gras_msg_handle(600.0);
72 /* 7. Free the allocated resources, and shut GRAS down */
73 gras_socket_close(sock);