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;
16 xbt_dynar_t hosts; /* All declared hosts */
18 XBT_LOG_NEW_DEFAULT_CATEGORY(ring,
19 "Messages specific for this msg example");
21 int host(int argc, char *argv[])
23 int host_number = atoi(MSG_process_get_name(MSG_process_self()));
26 _XBT_GNUC_UNUSED int res;
28 if (host_number == 0){ //master send then receive
29 sprintf(mailbox, "%d", host_number+1);
30 task = MSG_task_create("Token", task_comp_size, task_comm_size, NULL);
31 XBT_INFO("Host \"%d\" send '%s' to Host \"%s\"",host_number,task->name,mailbox);
32 MSG_task_send(task, mailbox);
34 res = MSG_task_receive(&(task), MSG_process_get_name(MSG_process_self()));
35 xbt_assert(res == MSG_OK, "MSG_task_get failed");
36 XBT_INFO("Host \"%d\" received \"%s\"",host_number, MSG_task_get_name(task));
37 MSG_task_destroy(task);
39 else{ //slave receive then send
40 res = MSG_task_receive(&(task), MSG_process_get_name(MSG_process_self()));
41 xbt_assert(res == MSG_OK, "MSG_task_get failed");
42 XBT_INFO("Host \"%d\" received \"%s\"",host_number, MSG_task_get_name(task));
44 if(host_number+1 == xbt_dynar_length(hosts) )
45 sprintf(mailbox, "0");
47 sprintf(mailbox, "%d", host_number+1);
48 XBT_INFO("Host \"%d\" send '%s' to Host \"%s\"",host_number,task->name,mailbox);
49 MSG_task_send(task, mailbox);
54 int main(int argc, char **argv)
57 MSG_global_init(&argc, argv);
58 MSG_create_environment(argv[1]);
59 hosts = MSG_hosts_as_dynar();
60 MSG_function_register("host", host);
62 XBT_INFO("Number of host '%zu'",xbt_dynar_length(hosts));
63 for(i = 0 ; i<xbt_dynar_length(hosts); i++)
65 char* name_host = bprintf("%d",i);
66 MSG_process_create( name_host, host, NULL, xbt_dynar_get_as(hosts,i,m_host_t) );
69 xbt_dynar_free(&hosts);
72 XBT_INFO("Simulation time %g", MSG_get_clock());