3 /* Copyright (c) 2006-2012. The SimGrid Team. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
9 #include "simgrid_config.h" /*HAVE_MMAP _XBT_WIN32 */
10 #include "internal_config.h" /* MMALLOC_WANT_OVERRIDE_LEGACY */
11 #include "time.h" /* to seed the random generator */
13 #include "xbt/sysdep.h"
15 #include "xbt/dynar.h"
16 #include "xbt/config.h"
18 #include "xbt/module.h" /* this module */
20 #include "xbt_modinter.h" /* prototype of other module's init/exit in XBT */
22 XBT_LOG_NEW_CATEGORY(xbt, "All XBT categories (simgrid toolbox)");
23 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(module, xbt, "module handling");
25 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) */
28 char *xbt_binary_name = NULL; /* Name of the system process containing us (mandatory to retrieve neat backtraces) */
29 xbt_dynar_t xbt_cmdline = NULL; /* all we got in argv */
31 int xbt_initialized = 0;
33 /* Declare xbt_preinit and xbt_postexit as constructor/destructor of the library.
34 * This is crude and rather compiler-specific, unfortunately.
36 static void xbt_preinit(void) _XBT_GNUC_CONSTRUCTOR(200);
37 static void xbt_postexit(void);
38 static unsigned int seed = 2147483647;
41 # undef _XBT_NEED_INIT_PRAGMA
44 #ifdef _XBT_NEED_INIT_PRAGMA
45 #pragma init (xbt_preinit)
52 /* Dummy prototype to make gcc happy */
53 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
56 /* Should not be necessary but for some reason,
57 * DllMain is called twice at attachment and
59 static int xbt_dll_process_is_attached = 0;
61 /* see also http://msdn.microsoft.com/en-us/library/ms682583%28VS.85%29.aspx */
62 /* and http://www.microsoft.com/whdc/driver/kernel/DLL_bestprac.mspx */
63 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
66 if (fdwReason == DLL_PROCESS_ATTACH
67 && xbt_dll_process_is_attached == 0) {
68 xbt_dll_process_is_attached = 1;
70 } else if (fdwReason == DLL_PROCESS_DETACH
71 && xbt_dll_process_is_attached == 1) {
72 xbt_dll_process_is_attached = 0;
80 static void xbt_preinit(void)
82 #ifdef MMALLOC_WANT_OVERRIDE_LEGACY
86 xbt_backtrace_preinit();
87 xbt_os_thread_mod_preinit();
93 static void xbt_postexit(void)
95 xbt_backtrace_postexit();
98 xbt_os_thread_mod_postexit();
99 xbt_dynar_free(&xbt_cmdline);
101 free(xbt_binary_name);
102 #ifdef MMALLOC_WANT_OVERRIDE_LEGACY
107 /** @brief Initialize the xbt mechanisms. */
108 void xbt_init(int *argc, char **argv)
110 if (xbt_initialized++) {
111 XBT_DEBUG("XBT was initialized %d times.", xbt_initialized);
115 xbt_binary_name = xbt_strdup(argv[0]);
116 xbt_cmdline = xbt_dynar_new(sizeof(char*),NULL);
118 for (i=0;i<*argc;i++) {
119 xbt_dynar_push(xbt_cmdline,&(argv[i]));
125 xbt_log_init(argc, argv);
128 /** @brief Finalize the xbt mechanisms.
129 * @warning this function is deprecated. Just don't call it, there is nothing more to do to finalize xbt*/
132 XBT_WARN("This function is deprecated, you shouldn't use it");
136 /* these two functions belong to xbt/sysdep.h, which have no corresponding .c file */
137 /** @brief like free, but you can be sure that it is a function */
138 XBT_PUBLIC(void) xbt_free_f(void *p)
143 /** @brief should be given a pointer to pointer, and frees the second one */
144 XBT_PUBLIC(void) xbt_free_ref(void *d)