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_CATEGORY(xbt, "All XBT categories (simgrid toolbox)");
24 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(module, xbt, "module handling");
26 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) */
29 char *xbt_binary_name = NULL; /* Mandatory to retrieve neat backtraces */
30 int xbt_initialized = 0;
32 int _surf_do_model_check = 0;
33 int _surf_mc_checkpoint=0;
34 char* _surf_mc_property_file=NULL;
36 /* Declare xbt_preinit and xbt_postexit as constructor/destructor of the library.
37 * This is crude and rather compiler-specific, unfortunately.
39 static void xbt_preinit(void) _XBT_GNUC_CONSTRUCTOR(200);
40 static void xbt_postexit(void);
43 # undef _XBT_NEED_INIT_PRAGMA
46 #ifdef _XBT_NEED_INIT_PRAGMA
47 #pragma init (xbt_preinit)
54 /* Dummy prototype to make gcc happy */
55 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
58 /* Should not be necessary but for some reason,
59 * DllMain is called twice at attachment and
61 static int xbt_dll_process_is_attached = 0;
63 /* see also http://msdn.microsoft.com/en-us/library/ms682583%28VS.85%29.aspx */
64 /* and http://www.microsoft.com/whdc/driver/kernel/DLL_bestprac.mspx */
65 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
68 if (fdwReason == DLL_PROCESS_ATTACH
69 && xbt_dll_process_is_attached == 0) {
70 xbt_dll_process_is_attached = 1;
72 } else if (fdwReason == DLL_PROCESS_DETACH
73 && xbt_dll_process_is_attached == 1) {
74 xbt_dll_process_is_attached = 0;
82 static void xbt_preinit(void)
84 #ifdef MMALLOC_WANT_OVERRIDE_LEGACY
89 xbt_backtrace_preinit();
90 xbt_os_thread_mod_preinit();
93 xbt_datadesc_preinit();
99 static void xbt_postexit(void)
102 xbt_datadesc_postexit();
104 xbt_backtrace_postexit();
110 xbt_os_thread_mod_postexit();
112 free(xbt_binary_name);
113 #ifdef MMALLOC_WANT_OVERRIDE_LEGACY
118 /** @brief Initialize the xbt mechanisms. */
119 void xbt_init(int *argc, char **argv)
121 // FIXME it would be nice to assert that this function is called only once. But each gras process do call it...
124 if (xbt_initialized > 1)
127 xbt_binary_name = xbt_strdup(argv[0]);
128 srand((unsigned int) time(NULL));
130 xbt_log_init(argc, argv);
133 /** @brief Finalize the xbt mechanisms. */
136 XBT_WARN("This function is deprecated, you shouldn't use it");
140 /* these two functions belong to xbt/sysdep.h, which have no corresponding .c file */
141 /** @brief like free, but you can be sure that it is a function */
142 XBT_PUBLIC(void) xbt_free_f(void *p)
147 /** @brief should be given a pointer to pointer, and frees the second one */
148 XBT_PUBLIC(void) xbt_free_ref(void *d)