X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/9e68ca10e951fb61e944c99c7774b1e415ae9f6d..9b73466ada27682d1729f394549479da83ef4a99:/src/xbt/xbt_main.c

diff --git a/src/xbt/xbt_main.c b/src/xbt/xbt_main.c
index 89a67a6471..141e329035 100644
--- a/src/xbt/xbt_main.c
+++ b/src/xbt/xbt_main.c
@@ -1,6 +1,7 @@
 /* module handling                                                          */
 
-/* Copyright (c) 2006-2012. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2006-2013. 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. */
@@ -8,7 +9,6 @@
 #include "xbt/misc.h"
 #include "simgrid_config.h"     /*HAVE_MMAP _XBT_WIN32 */
 #include "internal_config.h"        /* MMALLOC_WANT_OVERRIDE_LEGACY */
-#include "time.h"               /* to seed the random generator */
 
 #include "xbt/sysdep.h"
 #include "xbt/log.h"
@@ -19,6 +19,10 @@
 
 #include "xbt_modinter.h"       /* prototype of other module's init/exit in XBT */
 
+#include "simgrid/sg_config.h"
+
+#include <stdio.h>
+
 XBT_LOG_NEW_CATEGORY(xbt, "All XBT categories (simgrid toolbox)");
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(module, xbt, "module handling");
 
@@ -29,6 +33,7 @@ char *xbt_binary_name = NULL;   /* Name of the system process containing us (man
 xbt_dynar_t xbt_cmdline = NULL; /* all we got in argv */
 
 int xbt_initialized = 0;
+int _sg_do_clean_atexit = 1;
 
 /* Declare xbt_preinit and xbt_postexit as constructor/destructor of the library.
  * This is crude and rather compiler-specific, unfortunately.
@@ -76,21 +81,33 @@ BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
 
 #endif
 
-static void xbt_preinit(void)
-{
+static void xbt_preinit(void) {
+  unsigned int seed = 2147483647;
+
 #ifdef MMALLOC_WANT_OVERRIDE_LEGACY
   mmalloc_preinit();
+#endif
+#ifdef _TWO_DIGIT_EXPONENT
+  /* Even printf behaves differently on Windows... */
+  _set_output_format(_TWO_DIGIT_EXPONENT);
 #endif
   xbt_log_preinit();
   xbt_backtrace_preinit();
   xbt_os_thread_mod_preinit();
   xbt_fifo_preinit();
   xbt_dict_preinit();
+   
+  srand(seed);
+#ifndef _WIN32
+  srand48(seed);
+#endif
+
   atexit(xbt_postexit);
 }
 
 static void xbt_postexit(void)
 {
+  if(!_sg_do_clean_atexit) return;
   xbt_backtrace_postexit();
   xbt_fifo_postexit();
   xbt_dict_postexit();
@@ -117,9 +134,7 @@ void xbt_init(int *argc, char **argv)
   for (i=0;i<*argc;i++) {
     xbt_dynar_push(xbt_cmdline,&(argv[i]));
   }
-
-  srand((unsigned int) time(NULL));
-
+  
   xbt_log_init(argc, argv);
 }