+++ /dev/null
-/* Copyright (c) 2008-2015. The SimGrid Team.
- * All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#include "simgrid/msg.h"
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(ring, "Messages specific for this msg example");
-
-/** @addtogroup MSG_examples
- *
- * - <b>Token Ring: app-token-ring/app-token-ring.c</b>: Classical token ring communication, where a token is exchanged
- * along a ring to reach every participant. The tesh file laying in the directory shows how to run the same example on
- * different platforms.
- */
-
-/** Single function for all hosts */
-static int foo(int argc, char *argv[])
-{
- unsigned int task_comm_size = 1000000; /** The token is 1MB long*/
- int rank = xbt_str_parse_int(MSG_process_get_name(MSG_process_self()), "Invalid process name: %s");
- char mailbox[256];
- msg_task_t task = NULL;
- XBT_ATTRIB_UNUSED int res;
- if (rank == 0){ /** - The root (rank 0) first sends the token then waits to receive it back */
- sprintf(mailbox, "%d", rank+1);
- task = MSG_task_create("Token", 0, task_comm_size, NULL);
- XBT_INFO("Host \"%d\" send '%s' to Host \"%s\"", rank, task->name,mailbox);
- MSG_task_send(task, mailbox);
- task = NULL;
- res = MSG_task_receive(&(task), MSG_process_get_name(MSG_process_self()));
- xbt_assert(res == MSG_OK, "MSG_task_get failed");
- XBT_INFO("Host \"%d\" received \"%s\"", rank, MSG_task_get_name(task));
- MSG_task_destroy(task);
- } else{ /** - The others receive from their left neighbor (rank-1) and send to their right neighbor (rank+1) */
- res = MSG_task_receive(&(task), MSG_process_get_name(MSG_process_self()));
- xbt_assert(res == MSG_OK, "MSG_task_get failed");
- XBT_INFO("Host \"%d\" received \"%s\"",rank, MSG_task_get_name(task));
-
- if(rank+1 == MSG_get_host_number()) /** - Except for the last one which sends the token back to rank 0 */
- sprintf(mailbox, "0");
- else
- sprintf(mailbox, "%d", rank+1);
- XBT_INFO("Host \"%d\" send '%s' to Host \"%s\"",rank,task->name,mailbox);
- MSG_task_send(task, mailbox);
- }
- return 0;
-}
-
-int main(int argc, char *argv[])
-{
- unsigned int i;
- MSG_init(&argc, argv);
- MSG_create_environment(argv[1]); /** - Load the platform description */
- xbt_dynar_t hosts = MSG_hosts_as_dynar();
- msg_host_t h;
- MSG_function_register("foo", foo);
-
- XBT_INFO("Number of host '%d'",MSG_get_host_number());
- xbt_dynar_foreach (hosts, i, h){ /** - Give a unique rank to each host and create a @ref foo process on each */
- char* name_host = bprintf("%u",i);
- MSG_process_create(name_host, foo, NULL, h);
- free(name_host);
- }
- xbt_dynar_free(&hosts);
-
- int res = MSG_main(); /** - Run the simulation */
- XBT_INFO("Simulation time %g", MSG_get_clock());
- return res != MSG_OK;
-}
