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. */
10 #include "simgrid_config.h" /* _XBT_WIN32 */
11 #include "internal_config.h" /* MMALLOC_WANT_OVERRIDE_LEGACY */
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 #include "simgrid/sg_config.h"
29 XBT_LOG_NEW_CATEGORY(xbt, "All XBT categories (simgrid toolbox)");
30 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(module, xbt, "module handling");
32 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) */
35 char *xbt_binary_name = NULL; /* Name of the system process containing us (mandatory to retrieve neat backtraces) */
36 xbt_dynar_t xbt_cmdline = NULL; /* all we got in argv */
38 int xbt_initialized = 0;
39 int _sg_do_clean_atexit = 1;
44 /* Declare xbt_preinit and xbt_postexit as constructor/destructor of the library.
45 * This is crude and rather compiler-specific, unfortunately.
47 static void xbt_preinit(void) _XBT_GNUC_CONSTRUCTOR(200);
48 static void xbt_postexit(void);
51 # undef _XBT_NEED_INIT_PRAGMA
54 #ifdef _XBT_NEED_INIT_PRAGMA
55 #pragma init (xbt_preinit)
62 /* Dummy prototype to make gcc happy */
63 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
66 /* Should not be necessary but for some reason,
67 * DllMain is called twice at attachment and
69 static int xbt_dll_process_is_attached = 0;
71 /* see also http://msdn.microsoft.com/en-us/library/ms682583%28VS.85%29.aspx */
72 /* and http://www.microsoft.com/whdc/driver/kernel/DLL_bestprac.mspx */
73 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
76 if (fdwReason == DLL_PROCESS_ATTACH
77 && xbt_dll_process_is_attached == 0) {
78 xbt_dll_process_is_attached = 1;
80 } else if (fdwReason == DLL_PROCESS_DETACH
81 && xbt_dll_process_is_attached == 1) {
82 xbt_dll_process_is_attached = 0;
90 static void xbt_preinit(void) {
91 unsigned int seed = 2147483647;
93 xbt_pagesize = sysconf(_SC_PAGESIZE);
97 xbt_pagesize = si.dwPageSize;
101 int x = xbt_pagesize;
106 #ifdef MMALLOC_WANT_OVERRIDE_LEGACY
109 #ifdef _TWO_DIGIT_EXPONENT
110 /* Even printf behaves differently on Windows... */
111 _set_output_format(_TWO_DIGIT_EXPONENT);
114 xbt_backtrace_preinit();
115 xbt_os_thread_mod_preinit();
123 atexit(xbt_postexit);
126 static void xbt_postexit(void)
128 if(!_sg_do_clean_atexit) return;
129 xbt_backtrace_postexit();
132 xbt_os_thread_mod_postexit();
133 xbt_dynar_free(&xbt_cmdline);
135 free(xbt_binary_name);
136 #ifdef MMALLOC_WANT_OVERRIDE_LEGACY
141 /** @brief Initialize the xbt mechanisms. */
142 void xbt_init(int *argc, char **argv)
144 if (xbt_initialized++) {
145 XBT_DEBUG("XBT was initialized %d times.", xbt_initialized);
149 xbt_binary_name = xbt_strdup(argv[0]);
150 xbt_cmdline = xbt_dynar_new(sizeof(char*),NULL);
152 for (i=0;i<*argc;i++) {
153 xbt_dynar_push(xbt_cmdline,&(argv[i]));
156 xbt_log_init(argc, argv);
159 /** @brief Finalize the xbt mechanisms.
160 * @warning this function is deprecated. Just don't call it, there is nothing more to do to finalize xbt*/
163 XBT_WARN("This function is deprecated, you shouldn't use it");
167 /* these two functions belong to xbt/sysdep.h, which have no corresponding .c file */
168 /** @brief like free, but you can be sure that it is a function */
169 void xbt_free_f(void *p)
174 /** @brief should be given a pointer to pointer, and frees the second one */
175 void xbt_free_ref(void *d)
180 /** @brief Kill the program in silence */
184 /* Call __gcov_flush on abort when compiling with coverage options. */
185 extern void __gcov_flush(void);
189 /* It was said *in silence*. We don't want to see the error message printed
190 * by the Microsoft's implementation of abort(). */
192 signal(SIGABRT, SIG_DFL);