X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6adafc493ebb455b2f9faf5c583e28f9dfe1bba6..14ad54e6f735bfec4e8feb60a6089ef866fd2554:/teshsuite/msg/app-pingpong/app-pingpong.c

diff --git a/teshsuite/msg/app-pingpong/app-pingpong.c b/teshsuite/msg/app-pingpong/app-pingpong.c
new file mode 100644
index 0000000000..c4ed0d50ba
--- /dev/null
+++ b/teshsuite/msg/app-pingpong/app-pingpong.c
@@ -0,0 +1,86 @@
+/* Copyright (c) 2007-2017. 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_app_pingpong, "Messages specific for this msg example");
+
+static int pinger(int argc, char* argv[])
+{
+  xbt_assert(argc == 2, "The pinger function one argument from the XML deployment file");
+  XBT_INFO("Ping -> %s", argv[1]);
+  xbt_assert(MSG_host_by_name(argv[1]) != NULL, "Unknown host %s. Stopping Now! ", argv[1]);
+
+  /* - Do the ping with a 1-Byte task (latency bound) ... */
+  double now                = MSG_get_clock();
+  msg_task_t ping_task      = MSG_task_create("small communication (latency bound)", 0.0, 1, NULL);
+  ping_task->data           = xbt_new(double, 1);
+  *(double*)ping_task->data = now;
+  MSG_task_send(ping_task, argv[1]);
+
+  /* - ... then wait for the (large) pong */
+  msg_task_t pong_task = NULL;
+  int a                = MSG_task_receive(&pong_task, MSG_host_get_name(MSG_host_self()));
+  xbt_assert(a == MSG_OK, "Unexpected behavior");
+
+  double sender_time        = *((double*)(pong_task->data));
+  double communication_time = MSG_get_clock() - sender_time;
+  XBT_INFO("Task received : %s", pong_task->name);
+  xbt_free(pong_task->data);
+  MSG_task_destroy(pong_task);
+  XBT_INFO("Pong time (bandwidth bound): %.3f", communication_time);
+
+  return 0;
+}
+
+static int ponger(int argc, char* argv[])
+{
+  xbt_assert(argc == 2, "The ponger function one argument from the XML deployment file");
+  XBT_INFO("Pong -> %s", argv[1]);
+  xbt_assert(MSG_host_by_name(argv[1]) != NULL, "Unknown host %s. Stopping Now! ", argv[1]);
+
+  /* - Receive the (small) ping first ....*/
+  msg_task_t ping_task = NULL;
+  int a                = MSG_task_receive(&ping_task, MSG_host_get_name(MSG_host_self()));
+  xbt_assert(a == MSG_OK, "Unexpected behavior");
+
+  double sender_time        = *((double*)(ping_task->data));
+  double communication_time = MSG_get_clock() - sender_time;
+  XBT_INFO("Task received : %s", ping_task->name);
+  xbt_free(ping_task->data);
+  MSG_task_destroy(ping_task);
+  XBT_INFO(" Ping time (latency bound) %f", communication_time);
+
+  /*  - ... Then send a 1GB pong back (bandwidth bound) */
+  double now                = MSG_get_clock();
+  msg_task_t pong_task      = MSG_task_create("large communication (bandwidth bound)", 0.0, 1e9, NULL);
+  pong_task->data           = xbt_new(double, 1);
+  *(double*)pong_task->data = now;
+  XBT_INFO("task_bw->data = %.3f", *((double*)pong_task->data));
+  MSG_task_send(pong_task, argv[1]);
+
+  return 0;
+}
+
+int main(int argc, char* argv[])
+{
+  MSG_init(&argc, argv);
+
+  xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
+                       "\tExample: %s ../../platforms/small_platform.xml app-pingpong_d.xml\n",
+             argv[0], argv[0]);
+
+  MSG_create_environment(argv[1]); /* - Load the platform description */
+
+  MSG_function_register("pinger", pinger); /* - Register the functions to be executed by the processes */
+  MSG_function_register("ponger", ponger);
+
+  MSG_launch_application(argv[2]); /* - Deploy the application */
+
+  msg_error_t res = MSG_main(); /* - Run the simulation */
+
+  XBT_INFO("Total simulation time: %.3f", MSG_get_clock());
+  return res != MSG_OK;
+}