1 /* Copyright (c) 2008, 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
10 #include "surf/surf_private.h"
12 int host(int argc, char *argv[]);
13 unsigned int task_comp_size = 50000000;
14 unsigned int task_comm_size = 1000000;
17 XBT_LOG_NEW_DEFAULT_CATEGORY(ring,
18 "Messages specific for this msg example");
20 int host(int argc, char *argv[])
22 int host_number = atoi(MSG_process_get_name(MSG_process_self()));
25 _XBT_GNUC_UNUSED int res;
27 if (host_number == 0){ //master send then receive
28 sprintf(mailbox, "%d", host_number+1);
29 task = MSG_task_create("Token", task_comp_size, task_comm_size, NULL);
30 XBT_INFO("Host \"%d\" send '%s' to Host \"%s\"",host_number,task->name,mailbox);
31 MSG_task_send(task, mailbox);
33 res = MSG_task_receive(&(task), MSG_process_get_name(MSG_process_self()));
34 xbt_assert(res == MSG_OK, "MSG_task_get failed");
35 XBT_INFO("Host \"%d\" received \"%s\"",host_number, MSG_task_get_name(task));
36 MSG_task_destroy(task);
38 else{ //slave receive then send
39 res = MSG_task_receive(&(task), MSG_process_get_name(MSG_process_self()));
40 xbt_assert(res == MSG_OK, "MSG_task_get failed");
41 XBT_INFO("Host \"%d\" received \"%s\"",host_number, MSG_task_get_name(task));
43 if(host_number+1 == number_of_hosts )
44 sprintf(mailbox, "0");
46 sprintf(mailbox, "%d", host_number+1);
47 XBT_INFO("Host \"%d\" send '%s' to Host \"%s\"",host_number,task->name,mailbox);
48 MSG_task_send(task, mailbox);
53 int main(int argc, char **argv)
56 MSG_global_init(&argc, argv);
57 MSG_create_environment(argv[1]);
58 m_host_t *host_table = MSG_get_host_table();
59 number_of_hosts = MSG_get_host_number();
60 MSG_function_register("host", host);
62 XBT_INFO("Number of host '%d'",number_of_hosts);
63 for(i = 0 ; i<number_of_hosts; i++)
65 char* name_host = bprintf("%d",i);
66 MSG_process_create( name_host, host, NULL, host_table[i] );
72 XBT_INFO("Simulation time %g", MSG_get_clock());