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"
26 XBT_LOG_NEW_CATEGORY(xbt, "All XBT categories (simgrid toolbox)");
27 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(module, xbt, "module handling");
29 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) */
32 char *xbt_binary_name = NULL; /* Name of the system process containing us (mandatory to retrieve neat backtraces) */
33 xbt_dynar_t xbt_cmdline = NULL; /* all we got in argv */
35 int xbt_initialized = 0;
36 int _sg_do_clean_atexit = 1;
40 /* Declare xbt_preinit and xbt_postexit as constructor/destructor of the library.
41 * This is crude and rather compiler-specific, unfortunately.
43 static void xbt_preinit(void) _XBT_GNUC_CONSTRUCTOR(200);
44 static void xbt_postexit(void);
47 # undef _XBT_NEED_INIT_PRAGMA
50 #ifdef _XBT_NEED_INIT_PRAGMA
51 #pragma init (xbt_preinit)
58 /* Dummy prototype to make gcc happy */
59 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
62 /* Should not be necessary but for some reason,
63 * DllMain is called twice at attachment and
65 static int xbt_dll_process_is_attached = 0;
67 /* see also http://msdn.microsoft.com/en-us/library/ms682583%28VS.85%29.aspx */
68 /* and http://www.microsoft.com/whdc/driver/kernel/DLL_bestprac.mspx */
69 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
72 if (fdwReason == DLL_PROCESS_ATTACH
73 && xbt_dll_process_is_attached == 0) {
74 xbt_dll_process_is_attached = 1;
76 } else if (fdwReason == DLL_PROCESS_DETACH
77 && xbt_dll_process_is_attached == 1) {
78 xbt_dll_process_is_attached = 0;
86 static void xbt_preinit(void) {
87 unsigned int seed = 2147483647;
89 xbt_pagesize = sysconf(_SC_PAGESIZE);
91 #ifdef MMALLOC_WANT_OVERRIDE_LEGACY
94 #ifdef _TWO_DIGIT_EXPONENT
95 /* Even printf behaves differently on Windows... */
96 _set_output_format(_TWO_DIGIT_EXPONENT);
99 xbt_backtrace_preinit();
100 xbt_os_thread_mod_preinit();
109 atexit(xbt_postexit);
112 static void xbt_postexit(void)
114 if(!_sg_do_clean_atexit) return;
115 xbt_backtrace_postexit();
118 xbt_os_thread_mod_postexit();
119 xbt_dynar_free(&xbt_cmdline);
121 free(xbt_binary_name);
122 #ifdef MMALLOC_WANT_OVERRIDE_LEGACY
127 /** @brief Initialize the xbt mechanisms. */
128 void xbt_init(int *argc, char **argv)
130 if (xbt_initialized++) {
131 XBT_DEBUG("XBT was initialized %d times.", xbt_initialized);
135 xbt_binary_name = xbt_strdup(argv[0]);
136 xbt_cmdline = xbt_dynar_new(sizeof(char*),NULL);
138 for (i=0;i<*argc;i++) {
139 xbt_dynar_push(xbt_cmdline,&(argv[i]));
142 xbt_log_init(argc, argv);
145 /** @brief Finalize the xbt mechanisms.
146 * @warning this function is deprecated. Just don't call it, there is nothing more to do to finalize xbt*/
149 XBT_WARN("This function is deprecated, you shouldn't use it");
153 /* these two functions belong to xbt/sysdep.h, which have no corresponding .c file */
154 /** @brief like free, but you can be sure that it is a function */
155 XBT_PUBLIC(void) xbt_free_f(void *p)
160 /** @brief should be given a pointer to pointer, and frees the second one */
161 XBT_PUBLIC(void) xbt_free_ref(void *d)