--- /dev/null
+/* Copyright (c) 2007-2015. 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(msg_test, "Messages specific for this msg example");
+
+/** @addtogroup MSG_examples
+ *
+ * @section MSG_ex_models Models-related examples
+ *
+ * @subsection MSG_ex_PLS Packet level simulators
+ *
+ * These examples demonstrate how to use the bindings to classicalPacket-Level Simulators (PLS), as explained in
+ * \ref pls. The most interesting is probably not the C files since they are unchanged from the other simulations,
+ * but the associated files, such as the platform files to see how to declare a platform to be used with the PLS
+ * bindings of SimGrid and the tesh files to see how to actually start a simulation in these settings.
+ *
+ * - <b>ns3</b>: Simple ping-pong using ns3 instead of the SimGrid network models.
+ */
+
+int timer_start; //set as 1 in the master process
+
+//keep a pointer to all surf running tasks.
+#define NTASKS 1500
+int bool_printed = 0;
+double start_time, end_time, elapsed_time;
+double gl_data_size[NTASKS];
+msg_task_t gl_task_array[NTASKS];
+const char *workernames[NTASKS];
+const char *masternames[NTASKS];
+int gl_task_array_id = 0;
+int count_finished = 0;
+
+#define FINALIZE ((void*)221297) /* a magic number to tell people to stop working */
+
+static int master(int argc, char *argv[])
+{
+ msg_task_t todo;
+
+ xbt_assert(argc==4,"Strange number of arguments expected 3 got %d", argc - 1);
+
+ XBT_DEBUG ("Master started");
+
+ /* data size */
+ double task_comm_size = xbt_str_parse_double(argv[1], "Invalid task communication size: %s");
+
+ /* worker name */
+ char *workername = argv[2];
+ int id = xbt_str_parse_int(argv[3], "Invalid ID as argument 3: %s"); //unique id to control statistics
+ char *id_alias = bprintf("flow_%d", id);
+ workernames[id] = workername;
+ TRACE_category(id_alias);
+
+ masternames[id] = MSG_host_get_name(MSG_host_self());
+
+ { /* Task creation. */
+ todo = MSG_task_create("Task_0", 100*task_comm_size, task_comm_size, NULL);
+ MSG_task_set_category(todo, id_alias);
+ //keep track of running tasks
+ gl_task_array[id] = todo;
+ gl_data_size[id] = task_comm_size;
+ }
+
+ MSG_host_by_name(workername);
+
+ count_finished++;
+ timer_start = 1 ;
+
+ /* time measurement */
+ sprintf(id_alias, "%d", id);
+ start_time = MSG_get_clock();
+ MSG_task_send(todo, id_alias);
+ end_time = MSG_get_clock();
+
+ XBT_DEBUG ("Finished");
+ xbt_free(id_alias);
+ return 0;
+}
+
+static int timer(int argc, char *argv[])
+{
+ double sleep_time;
+ double first_sleep;
+
+ xbt_assert(argc==3,"Strange number of arguments expected 2 got %d", argc - 1);
+
+ sscanf(argv[1], "%lf", &first_sleep);
+ sscanf(argv[2], "%lf", &sleep_time);
+
+ XBT_DEBUG ("Timer started");
+
+ if(first_sleep){
+ MSG_process_sleep(first_sleep);
+ }
+
+ do {
+ XBT_DEBUG ("Get sleep");
+ MSG_process_sleep(sleep_time);
+ } while(timer_start);
+
+ XBT_DEBUG ("Finished");
+ return 0;
+}
+
+static int worker(int argc, char *argv[])
+{
+ msg_task_t task = NULL;
+ char id_alias[10];
+
+ xbt_assert(argc==2,"Strange number of arguments expected 1 got %d", argc - 1);
+
+ XBT_DEBUG ("Worker started");
+
+ int id = xbt_str_parse_int(argv[1], "Invalid id: %s");
+ sprintf(id_alias, "%d", id);
+
+ msg_error_t a = MSG_task_receive(&(task), id_alias);
+
+ count_finished--;
+ if(count_finished == 0){
+ timer_start = 0;
+ }
+
+ xbt_assert(a == MSG_OK,"Hey?! What's up? Unexpected behavior");
+
+ elapsed_time = MSG_get_clock() - start_time;
+
+ XBT_INFO("FLOW[%d] : Receive %.0f bytes from %s to %s", id, MSG_task_get_bytes_amount(task), masternames[id],
+ workernames[id]);
+// MSG_task_execute(task);
+ MSG_task_destroy(task);
+
+ XBT_DEBUG ("Finished");
+ return 0;
+}
+
+int main(int argc, char *argv[])
+{
+ msg_error_t res = MSG_OK;
+ bool_printed = 0;
+
+ MSG_init(&argc, argv);
+ xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
+ "\tExample: %s platform.xml deployment.xml\n", argv[0], argv[0]);
+
+ MSG_create_environment(argv[1]);
+ TRACE_declare_mark("endmark");
+
+ MSG_function_register("master", master);
+ MSG_function_register("worker", worker);
+ MSG_function_register("timer", timer);
+
+ MSG_launch_application(argv[2]);
+
+ res = MSG_main();
+
+ return res != MSG_OK;
+}
