X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/3a4b0619b7ea56a08980be9a7c40c9a535f82e73..87116782db3154fb79cd353db446bd226cf15976:/src/msg/msg_global.c

diff --git a/src/msg/msg_global.c b/src/msg/msg_global.c
index 9daa413d49..98e0c95681 100644
--- a/src/msg/msg_global.c
+++ b/src/msg/msg_global.c
@@ -1,9 +1,10 @@
-/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
+/* Copyright (c) 2004-2015. 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 "instr/instr_interface.h"
 #include "msg_private.h"
 #include "msg_mailbox.h"
 #include "mc/mc.h"
@@ -12,6 +13,8 @@
 #include "xbt/virtu.h"
 #include "xbt/ex.h"             /* ex_backtrace_display */
 #include "xbt/replay.h"
+#include "simgrid/sg_config.h" /* Configuration mechanism of SimGrid */
+
 
 XBT_LOG_NEW_CATEGORY(msg, "All MSG categories");
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_kernel, msg,
@@ -22,6 +25,11 @@ static void MSG_exit(void);
 
 /********************************* MSG **************************************/
 
+static void _sg_cfg_cb_msg_debug_multiple_use(const char *name, int pos)
+{
+  msg_global->debug_multiple_use = xbt_cfg_get_boolean(_sg_cfg_set, name);
+}
+
 /**
  * \ingroup msg_simulation
  * \brief Initialize MSG with less verifications
@@ -29,52 +37,42 @@ static void MSG_exit(void);
  */
 void MSG_init_nocheck(int *argc, char **argv) {
 
-#ifdef HAVE_TRACING
   TRACE_global_init(argc, argv);
-#endif
 
   xbt_getpid = MSG_process_self_PID;
   if (!msg_global) {
-    s_msg_vm_t vm; // to compute the offset
-
-    SIMIX_global_init(argc, argv);
 
-    if(MC_IS_ENABLED && mmalloc_ignore == NULL)
-      MC_ignore_init();
-    
     msg_global = xbt_new0(s_MSG_Global_t, 1);
 
+    xbt_cfg_register(&_sg_cfg_set, "msg/debug_multiple_use",
+                     "Print backtraces of both processes when there is a conflict of multiple use of a task",
+                     xbt_cfgelm_boolean, 1, 1, _sg_cfg_cb_msg_debug_multiple_use, NULL);
+    xbt_cfg_setdefault_boolean(_sg_cfg_set, "msg/debug_multiple_use", "no");
+
+    SIMIX_global_init(argc, argv);
+
 #ifdef MSG_USE_DEPRECATED
     msg_global->max_channel = 0;
 #endif
-    msg_global->PID = 1;
     msg_global->sent_msg = 0;
     msg_global->task_copy_callback = NULL;
     msg_global->process_data_cleanup = NULL;
-    msg_global->vms = xbt_swag_new(xbt_swag_offset(vm,all_vms_hookup));
-
-    /* initialization of the action module */
-    _MSG_action_init();
 
     SIMIX_function_register_process_create(MSG_process_create_from_SIMIX);
     SIMIX_function_register_process_cleanup(MSG_process_cleanup_from_SIMIX);
 
     sg_platf_postparse_add_cb(MSG_post_create_environment);
   }
-  
-  if(MC_IS_ENABLED){
+
+  if(MC_is_active()){
     /* Ignore total amount of messages sent during the simulation for heap comparison */
-    MC_ignore(&(msg_global->sent_msg), sizeof(msg_global->sent_msg));
+    MC_ignore_heap(&(msg_global->sent_msg), sizeof(msg_global->sent_msg));
   }
 
-#ifdef HAVE_TRACING
-  TRACE_start();
-#endif
-
   XBT_DEBUG("ADD MSG LEVELS");
-  MSG_HOST_LEVEL = xbt_lib_add_level(host_lib, (void_f_pvoid_t) __MSG_host_destroy);
-
-  atexit(MSG_exit);
+  MSG_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, (void_f_pvoid_t) __MSG_storage_destroy);
+  MSG_FILE_LEVEL = xbt_lib_add_level(file_lib, (void_f_pvoid_t) __MSG_file_destroy);
+  if(sg_cfg_get_boolean("clean_atexit")) atexit(MSG_exit);
 }
 
 #ifdef MSG_USE_DEPRECATED
@@ -122,14 +120,28 @@ msg_error_t MSG_main(void)
   fflush(stdout);
   fflush(stderr);
 
-  if (MC_IS_ENABLED) { 
-    MC_do_the_modelcheck_for_real();
+  if (MC_is_active()) {
+    MC_run();
   } else {
     SIMIX_run();
   }
   return MSG_OK;
 }
 
+/** \ingroup msg_simulation
+ * \brief set a configuration variable
+ *
+ * Do --help on any simgrid binary to see the list of currently existing configuration variables, and see Section @ref options.
+ *
+ * Example:
+ * MSG_config("host/model","ptask_L07");
+ */
+void MSG_config(const char *key, const char *value){
+  xbt_assert(msg_global,"ERROR: Please call MSG_init() before using MSG_config()");
+  xbt_cfg_set_as_string(_sg_cfg_set, key, value);
+}
+
+
 /** \ingroup msg_simulation
  * \brief Kill all running process
 
@@ -139,14 +151,12 @@ msg_error_t MSG_main(void)
  */
 int MSG_process_killall(int reset_PIDs)
 {
-  simcall_process_killall();
+  simcall_process_killall(reset_PIDs);
 
-  if (reset_PIDs > 0) {
-    msg_global->PID = reset_PIDs;
+  if (reset_PIDs > 0)
     msg_global->session++;
-  }
 
-  return msg_global->PID;
+  return 0;
 
 }
 
@@ -154,18 +164,8 @@ static void MSG_exit(void) {
   if (msg_global==NULL)
     return;
 
-#ifdef HAVE_TRACING
-  TRACE_surf_release();
-#endif
-
-  /* initialization of the action module */
-  _MSG_action_exit();
-
-#ifdef HAVE_TRACING
+  TRACE_surf_resource_utilization_release();
   TRACE_end();
-#endif
-
-  xbt_swag_free(msg_global->vms);
   free(msg_global);
   msg_global = NULL;
 }