3 /* Copyright (c) 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
10 #include "simgrid_config.h" /*HAVE_MMAP _XBT_WIN32 */
11 #include "gras_config.h" /* MMALLOC_WANT_OVERRIDE_LEGACY */
12 #include "time.h" /* to seed the random generator */
14 #include "xbt/sysdep.h"
16 #include "xbt/dynar.h"
17 #include "xbt/config.h"
19 #include "xbt/module.h" /* this module */
21 #include "xbt_modinter.h" /* prototype of other module's init/exit in XBT */
23 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(module, xbt, "module handling");
25 char *xbt_binary_name = NULL; /* Mandatory to retrieve neat backtraces */
26 int xbt_initialized = 0;
28 int _surf_do_model_check = 0; /* this variable is used accros the libraries, and must be declared in XBT so that it's also defined in GRAS (not only in libsimgrid) */
30 /* Declare xbt_preinit and xbt_postexit as constructor/destructor of the library.
31 * This is crude and rather compiler-specific, unfortunately.
33 static void xbt_preinit(void) _XBT_GNUC_CONSTRUCTOR;
34 static void xbt_postexit(void) _XBT_GNUC_DESTRUCTOR;
37 # undef _XBT_NEED_INIT_PRAGMA
40 #ifdef _XBT_NEED_INIT_PRAGMA
41 #pragma init (xbt_preinit)
42 #pragma fini (xbt_postexit)
49 /* Dummy prototype to make gcc happy */
50 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
53 /* Should not be necessary but for some reason,
54 * DllMain is called twice at attachment and
56 static int xbt_dll_process_is_attached = 0;
58 /* see also http://msdn.microsoft.com/en-us/library/ms682583%28VS.85%29.aspx */
59 /* and http://www.microsoft.com/whdc/driver/kernel/DLL_bestprac.mspx */
60 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
63 if (fdwReason == DLL_PROCESS_ATTACH
64 && xbt_dll_process_is_attached == 0) {
65 xbt_dll_process_is_attached = 1;
67 } else if (fdwReason == DLL_PROCESS_DETACH
68 && xbt_dll_process_is_attached == 1) {
69 xbt_dll_process_is_attached = 0;
78 static void xbt_preinit(void)
80 #ifdef MMALLOC_WANT_OVERRIDE_LEGACY
85 xbt_backtrace_preinit();
86 xbt_os_thread_mod_preinit();
89 xbt_datadesc_preinit();
93 static void xbt_postexit(void)
96 xbt_datadesc_postexit();
98 xbt_backtrace_postexit();
104 xbt_os_thread_mod_postexit();
106 free(xbt_binary_name);
107 #ifdef MMALLOC_WANT_OVERRIDE_LEGACY
112 /** @brief Initialize the xbt mechanisms. */
113 void xbt_init(int *argc, char **argv)
115 // FIXME it would be nice to assert that this function is called only once. But each gras process do call it...
118 if (xbt_initialized > 1)
121 xbt_binary_name = xbt_strdup(argv[0]);
122 srand((unsigned int) time(NULL));
124 xbt_log_init(argc, argv);
127 /** @brief Finalize the xbt mechanisms. */
130 XBT_WARN("This function is deprecated, you shouldn't use it");
134 /* these two functions belong to xbt/sysdep.h, which have no corresponding .c file */
135 /** @brief like free, but you can be sure that it is a function */
136 XBT_PUBLIC(void) xbt_free_f(void *p)
141 /** @brief should be given a pointer to pointer, and frees the second one */
142 XBT_PUBLIC(void) xbt_free_ref(void *d)