3 /* Copyright (c) 2006-2014. 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. */
9 #define XBT_LOG_LOCALLY_DEFINE_XBT_CHANNEL /* MSVC don't want it to be declared extern in headers and local here */
12 #include "simgrid_config.h" /* _XBT_WIN32 */
13 #include "internal_config.h" /* MMALLOC_WANT_OVERRIDE_LEGACY */
15 #include "xbt/sysdep.h"
17 #include "xbt/dynar.h"
18 #include "xbt/config.h"
20 #include "xbt/module.h" /* this module */
22 #include "xbt_modinter.h" /* prototype of other module's init/exit in XBT */
24 #include "simgrid/sg_config.h"
31 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(module, xbt, "module handling");
33 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) */
36 char *xbt_binary_name = NULL; /* Name of the system process containing us (mandatory to retrieve neat backtraces) */
37 xbt_dynar_t xbt_cmdline = NULL; /* all we got in argv */
39 int xbt_initialized = 0;
40 int _sg_do_clean_atexit = 1;
45 /* Declare xbt_preinit and xbt_postexit as constructor/destructor of the library.
46 * This is crude and rather compiler-specific, unfortunately.
48 static void xbt_preinit(void) _XBT_GNUC_CONSTRUCTOR(200);
49 static void xbt_postexit(void);
52 # undef _XBT_NEED_INIT_PRAGMA
55 #ifdef _XBT_NEED_INIT_PRAGMA
56 #pragma init (xbt_preinit)
63 /* Dummy prototype to make gcc happy */
64 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
67 /* Should not be necessary but for some reason,
68 * DllMain is called twice at attachment and
70 static int xbt_dll_process_is_attached = 0;
72 /* see also http://msdn.microsoft.com/en-us/library/ms682583%28VS.85%29.aspx */
73 /* and http://www.microsoft.com/whdc/driver/kernel/DLL_bestprac.mspx */
74 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
77 if (fdwReason == DLL_PROCESS_ATTACH
78 && xbt_dll_process_is_attached == 0) {
79 xbt_dll_process_is_attached = 1;
81 } else if (fdwReason == DLL_PROCESS_DETACH
82 && xbt_dll_process_is_attached == 1) {
83 xbt_dll_process_is_attached = 0;
91 static void xbt_preinit(void) {
92 unsigned int seed = 2147483647;
94 xbt_pagesize = sysconf(_SC_PAGESIZE);
98 xbt_pagesize = si.dwPageSize;
102 int x = xbt_pagesize;
107 #ifdef _TWO_DIGIT_EXPONENT
108 /* Even printf behaves differently on Windows... */
109 _set_output_format(_TWO_DIGIT_EXPONENT);
112 xbt_backtrace_preinit();
113 xbt_os_thread_mod_preinit();
121 atexit(xbt_postexit);
124 static void xbt_postexit(void)
126 if(!_sg_do_clean_atexit) return;
128 xbt_backtrace_postexit();
131 xbt_os_thread_mod_postexit();
132 xbt_dynar_free(&xbt_cmdline);
134 free(xbt_binary_name);
135 #ifdef MMALLOC_WANT_OVERRIDE_LEGACY
140 /** @brief Initialize the xbt mechanisms. */
141 void xbt_init(int *argc, char **argv)
143 if (xbt_initialized++) {
144 XBT_DEBUG("XBT was initialized %d times.", xbt_initialized);
148 xbt_binary_name = xbt_strdup(argv[0]);
149 xbt_cmdline = xbt_dynar_new(sizeof(char*),NULL);
151 for (i=0;i<*argc;i++) {
152 xbt_dynar_push(xbt_cmdline,&(argv[i]));
155 xbt_log_init(argc, argv);
158 /** @brief Finalize the xbt mechanisms.
159 * @warning this function is deprecated. Just don't call it, there is nothing more to do to finalize xbt*/
162 XBT_WARN("This function is deprecated, you shouldn't use it");
166 /* these two functions belong to xbt/sysdep.h, which have no corresponding .c file */
167 /** @brief like free, but you can be sure that it is a function */
168 void xbt_free_f(void *p)
173 /** @brief should be given a pointer to pointer, and frees the second one */
174 void xbt_free_ref(void *d)
179 /** @brief Kill the program in silence */
183 /* Call __gcov_flush on abort when compiling with coverage options. */
184 extern void __gcov_flush(void);
188 /* It was said *in silence*. We don't want to see the error message printed
189 * by the Microsoft's implementation of abort(). */
191 signal(SIGABRT, SIG_DFL);