From f2e6b48eb3a7799a9670a54150ecdfc5139e2e21 Mon Sep 17 00:00:00 2001
From: Lucas Schnorr <Lucas.Schnorr@imag.fr>
Date: Mon, 23 Jan 2012 16:57:31 +0100
Subject: [PATCH] [trace] new example inspired by storage systems to trace user
 variables

---
 buildtools/Cmake/AddTests.cmake       |  1 +
 examples/msg/tracing/CMakeLists.txt   |  2 +
 examples/msg/tracing/user_variables.c | 74 +++++++++++++++++++++++++++
 3 files changed, 77 insertions(+)
 create mode 100644 examples/msg/tracing/user_variables.c

diff --git a/buildtools/Cmake/AddTests.cmake b/buildtools/Cmake/AddTests.cmake
index 1cebd63c21..be596bcdad 100644
--- a/buildtools/Cmake/AddTests.cmake
+++ b/buildtools/Cmake/AddTests.cmake
@@ -391,6 +391,7 @@ IF(HAVE_TRACING)
   ADD_TEST(tracing-help             ${CMAKE_BINARY_DIR}/teshsuite/simdag/platforms/basic_parsing_test --help-tracing)
   ADD_TEST(tracing-ms 				${CMAKE_BINARY_DIR}/bin/tesh ${TESH_OPTION}	--setenv bindir=${CMAKE_BINARY_DIR}/examples/msg	--cd ${CMAKE_HOME_DIRECTORY}/examples/msg tracing/ms.tesh)
   ADD_TEST(tracing-trace_platform 				${CMAKE_BINARY_DIR}/bin/tesh ${TESH_OPTION}	--setenv bindir=${CMAKE_BINARY_DIR}/examples/msg	--cd ${CMAKE_HOME_DIRECTORY}/examples/msg tracing/trace_platform.tesh)
+  ADD_TEST(tracing-user_variables 				${CMAKE_BINARY_DIR}/bin/tesh ${TESH_OPTION}	--setenv bindir=${CMAKE_BINARY_DIR}/examples/msg	--cd ${CMAKE_HOME_DIRECTORY}/examples/msg tracing/user_variables.tesh)
   ADD_TEST(tracing-categories 		${CMAKE_BINARY_DIR}/bin/tesh ${TESH_OPTION}	--setenv bindir=${CMAKE_BINARY_DIR}/examples/msg	--cd ${CMAKE_HOME_DIRECTORY}/examples/msg tracing/categories.tesh)
   ADD_TEST(tracing-process-migration ${CMAKE_BINARY_DIR}/bin/tesh ${TESH_OPTION}	--setenv bindir=${CMAKE_BINARY_DIR}/examples/msg	--cd ${CMAKE_HOME_DIRECTORY}/examples/msg tracing/procmig.tesh)
   ADD_TEST(graphicator ${CMAKE_BINARY_DIR}/bin/tesh ${TESH_OPTION} --setenv srcdir=${CMAKE_HOME_DIRECTORY} --setenv bindir=${CMAKE_BINARY_DIR}/bin --cd ${CMAKE_HOME_DIRECTORY}/tools/graphicator graphicator.tesh)
diff --git a/examples/msg/tracing/CMakeLists.txt b/examples/msg/tracing/CMakeLists.txt
index e1772c9c48..55167d15f0 100644
--- a/examples/msg/tracing/CMakeLists.txt
+++ b/examples/msg/tracing/CMakeLists.txt
@@ -8,6 +8,7 @@ add_executable(categories ${CMAKE_CURRENT_SOURCE_DIR}/categories.c)
 add_executable(procmig    ${CMAKE_CURRENT_SOURCE_DIR}/procmig.c)
 add_executable(simple     ${CMAKE_CURRENT_SOURCE_DIR}/simple.c)
 add_executable(trace_platform     ${CMAKE_CURRENT_SOURCE_DIR}/trace_platform.c)
+add_executable(user_variables     ${CMAKE_CURRENT_SOURCE_DIR}/user_variables.c)
 
 ### Add definitions for compile
 target_link_libraries(ms simgrid m )
@@ -15,6 +16,7 @@ target_link_libraries(categories simgrid m )
 target_link_libraries(procmig simgrid m )
 target_link_libraries(simple simgrid m )
 target_link_libraries(trace_platform simgrid m )
+target_link_libraries(user_variables simgrid m )
 
 ## Clean generated files
 get_directory_property(extra_clean_files ADDITIONAL_MAKE_CLEAN_FILES)
diff --git a/examples/msg/tracing/user_variables.c b/examples/msg/tracing/user_variables.c
new file mode 100644
index 0000000000..938e690615
--- /dev/null
+++ b/examples/msg/tracing/user_variables.c
@@ -0,0 +1,74 @@
+/* Copyright (c) 2010. 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 <stdio.h>
+#include "msg/msg.h"
+#include "xbt/sysdep.h"         /* calloc, printf */
+
+/* Create a log channel to have nice outputs. */
+#include "xbt/log.h"
+#include "xbt/asserts.h"
+XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test, "Messages specific for this msg example");
+
+int master(int argc, char *argv[]);
+
+int master(int argc, char *argv[])
+{
+  char *hostname = MSG_host_self()->name;
+  int i;
+
+  //the hostname has an empty HDD with a capacity of 100000 (bytes)
+  TRACE_host_variable_set(hostname, "HDD_capacity", 100000);
+  TRACE_host_variable_set(hostname, "HDD_utilization", 0);
+
+  for (i = 0; i < 10; i++) {
+    //create and execute a task just to make the simulated time advance
+    m_task_t task = MSG_task_create("task", 10000, 0, NULL);
+    MSG_task_execute (task);
+    MSG_task_destroy (task);
+
+    //ADD: after the execution of this task, the HDD utilization increases by 100 (bytes)
+    TRACE_host_variable_add(hostname, "HDD_utilization", 100);
+  }
+
+  for (i = 0; i < 10; i++) {
+    //create and execute a task just to make the simulated time advance
+    m_task_t task = MSG_task_create("task", 10000, 0, NULL);
+    MSG_task_execute (task);
+    MSG_task_destroy (task);
+
+    //SUB: after the execution of this task, the HDD utilization decreases by 100 (bytes)
+    TRACE_host_variable_sub(hostname, "HDD_utilization", 100);
+  }
+  return 0;
+}
+
+/** Main function */
+int main(int argc, char *argv[])
+{
+  MSG_global_init(&argc, argv);
+  if (argc < 3) {
+    printf("Usage: %s platform_file deployment_file\n", argv[0]);
+    exit(1);
+  }
+
+  char *platform_file = argv[1];
+  char *deployment_file = argv[2];
+  MSG_create_environment(platform_file);
+
+  //declaring user variables
+  TRACE_host_variable_declare("HDD_capacity");
+  TRACE_host_variable_declare("HDD_utilization");
+
+  //register functions and launch deployment
+  MSG_function_register("master", master);
+  MSG_function_register("slave", master);
+  MSG_launch_application(deployment_file);
+
+  MSG_main();
+  MSG_clean();
+  return 0;
+}
-- 
2.20.1