X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/83636a12d4f21be42bb60312b7c897ce15217e9f..cdc5e6b304490c7f11223bea097fea9fd2a2dfee:/src/xbt/xbt_main.c

diff --git a/src/xbt/xbt_main.c b/src/xbt/xbt_main.c
index f16ad00366..653546adf7 100644
--- a/src/xbt/xbt_main.c
+++ b/src/xbt/xbt_main.c
@@ -1,58 +1,152 @@
-/* $Id$ */
-
 /* module handling                                                          */
 
-/* Copyright (c) 2003, 2004 Martin Quinson. All rights reserved.            */
+/* Copyright (c) 2006-2012. 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 "time.h" /* to seed the random generator */
+#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"
 #include "xbt/dynar.h"
 #include "xbt/config.h"
 
-#include "xbt/module.h" /* this module */
+#include "xbt/module.h"         /* this module */
 
-#include "xbt_modinter.h"  /* prototype of other module's init/exit in XBT */
+#include "xbt_modinter.h"       /* prototype of other module's init/exit in XBT */
 
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(module,xbt, "module handling");
+XBT_LOG_NEW_CATEGORY(xbt, "All XBT categories (simgrid toolbox)");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(module, xbt, "module handling");
 
-char *xbt_binary_name=NULL; /* Mandatory to retrieve neat backtraces */
-int xbt_initialized=0;
+XBT_LOG_NEW_CATEGORY(smpi, "All SMPI categories"); /* lives here even if that's a bit odd to solve linking issues: this is used in xbt_log_file_appender to detect whether SMPI is used (and thus whether we should unbench the writing to disk) */
 
-/** @brief Initialize the xbt mechanisms. */
-void 
-xbt_init(int *argc, char **argv) {
-  xbt_initialized++;
 
-  if (xbt_initialized!=1)
+char *xbt_binary_name = NULL;   /* Name of the system process containing us (mandatory to retrieve neat backtraces) */
+xbt_dynar_t xbt_cmdline = NULL; /* all we got in argv */
+
+int xbt_initialized = 0;
+
+int _surf_do_model_check = 0;
+int _surf_mc_checkpoint=0;
+char* _surf_mc_property_file=NULL;
+int _surf_mc_timeout=0;
+int _surf_mc_max_depth=1000;
+int _surf_mc_visited=0;
+
+/* Declare xbt_preinit and xbt_postexit as constructor/destructor of the library.
+ * This is crude and rather compiler-specific, unfortunately.
+ */
+static void xbt_preinit(void) _XBT_GNUC_CONSTRUCTOR(200);
+static void xbt_postexit(void);
+
+#ifdef _XBT_WIN32
+# undef _XBT_NEED_INIT_PRAGMA
+#endif
+
+#ifdef _XBT_NEED_INIT_PRAGMA
+#pragma init (xbt_preinit)
+#endif
+
+#ifdef _XBT_WIN32
+#include <windows.h>
+
+#ifndef __GNUC__
+/* Dummy prototype to make gcc happy */
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
+                    LPVOID lpvReserved);
+
+/* Should not be necessary but for some reason,
+ * DllMain is called twice at attachment and
+ * at detachment.*/
+static int xbt_dll_process_is_attached = 0;
+
+/* see also http://msdn.microsoft.com/en-us/library/ms682583%28VS.85%29.aspx */
+/* and http://www.microsoft.com/whdc/driver/kernel/DLL_bestprac.mspx */
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
+                    LPVOID lpvReserved)
+{
+  if (fdwReason == DLL_PROCESS_ATTACH
+      && xbt_dll_process_is_attached == 0) {
+    xbt_dll_process_is_attached = 1;
+    xbt_preinit();
+  } else if (fdwReason == DLL_PROCESS_DETACH
+      && xbt_dll_process_is_attached == 1) {
+    xbt_dll_process_is_attached = 0;
+  }
+  return 1;
+}
+#endif
+
+#endif
+
+static void xbt_preinit(void)
+{
+#ifdef MMALLOC_WANT_OVERRIDE_LEGACY
+  mmalloc_preinit();
+#endif
+  xbt_log_preinit();
+  xbt_backtrace_preinit();
+  xbt_os_thread_mod_preinit();
+  xbt_fifo_preinit();
+  xbt_dict_preinit();
+  atexit(xbt_postexit);
+}
+
+static void xbt_postexit(void)
+{
+  xbt_backtrace_postexit();
+  xbt_fifo_postexit();
+  xbt_dict_postexit();
+  xbt_os_thread_mod_postexit();
+  xbt_dynar_free(&xbt_cmdline);
+  xbt_log_postexit();
+  free(xbt_binary_name);
+#ifdef MMALLOC_WANT_OVERRIDE_LEGACY
+  mmalloc_postexit();
+#endif
+}
+
+/** @brief Initialize the xbt mechanisms. */
+void xbt_init(int *argc, char **argv)
+{
+  if (xbt_initialized++) {
+    XBT_DEBUG("XBT was initialized %d times.", xbt_initialized);
     return;
+  }
 
   xbt_binary_name = xbt_strdup(argv[0]);
-  srand((unsigned int)time(NULL));
-  VERB0("Initialize XBT");
-  
-  xbt_log_init(argc,argv);
-  xbt_thread_mod_init();
-  xbt_context_init();
+  xbt_cmdline = xbt_dynar_new(sizeof(char*),NULL);
+  int i;
+  for (i=0;i<*argc;i++) {
+    xbt_dynar_push(xbt_cmdline,&(argv[i]));
+  }
+
+  srand((unsigned int) time(NULL));
+
+  xbt_log_init(argc, argv);
 }
 
-/** @brief Finalize the xbt mechanisms. */
-void 
-xbt_exit(){
-  xbt_initialized--;
-  if (xbt_initialized == 0) {
-    xbt_fifo_exit();
-    xbt_dict_exit();
-    xbt_context_exit();
-    xbt_thread_mod_exit();
-    xbt_log_exit();
-  }
-   
-  if (xbt_initialized == 0)
-    free(xbt_binary_name);
+/** @brief Finalize the xbt mechanisms.
+ *  @warning this function is deprecated. Just don't call it, there is nothing more to do to finalize xbt*/
+void xbt_exit()
+{
+  XBT_WARN("This function is deprecated, you shouldn't use it");
 }
 
+
+/* these two functions belong to xbt/sysdep.h, which have no corresponding .c file */
+/** @brief like free, but you can be sure that it is a function  */
+XBT_PUBLIC(void) xbt_free_f(void *p)
+{
+  free(p);
+}
+
+/** @brief should be given a pointer to pointer, and frees the second one */
+XBT_PUBLIC(void) xbt_free_ref(void *d)
+{
+  free(*(void **) d);
+}