-/* $Id$ */
-
/* module handling */
-/* Copyright (c) 2003, 2004 Martin Quinson. All rights reserved. */
+/* Copyright (c) 2006-2014. The SimGrid Team.
+ * All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#include "time.h" /* to seed the random generator */
+#define XBT_LOG_LOCALLY_DEFINE_XBT_CHANNEL /* MSVC don't want it to be declared extern in headers and local here */
+
+#include "xbt/misc.h"
+#include "simgrid_config.h"
#include "xbt/sysdep.h"
#include "xbt/log.h"
#include "xbt/dynar.h"
#include "xbt/config.h"
-#include "xbt/module.h" /* this module */
+#include "xbt/module.h" /* this module */
+
+#include "src/xbt_modinter.h" /* prototype of other module's init/exit in XBT */
+
+#include "simgrid/sg_config.h"
+
+#include "src/internal_config.h"
+#include <stdio.h>
+#ifdef _WIN32
+#include <signal.h> /* To silence MSVC on abort() */
+#endif
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(module, xbt, "module handling");
+
+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) */
+
+char *xbt_binary_name = NULL; /* Name of the system process containing us (mandatory to retrieve neat backtraces) */
+xbt_dynar_t xbt_cmdline = NULL; /* all we got in argv */
+
+int xbt_initialized = 0;
+int _sg_do_clean_atexit = 1;
+
+int xbt_pagesize;
+int xbt_pagebits = 0;
+
+/* Declare xbt_preinit and xbt_postexit as constructor/destructor of the library.
+ * This is crude and rather compiler-specific, unfortunately.
+ */
+static void xbt_preinit(void) _XBT_GNUC_CONSTRUCTOR(200);
+static void xbt_postexit(void);
+
+#ifdef _WIN32
+# undef _XBT_NEED_INIT_PRAGMA
+#endif
+
+#ifdef _XBT_NEED_INIT_PRAGMA
+#pragma init (xbt_preinit)
+#endif
+
+#ifdef _WIN32
+#include <windows.h>
+
+#ifndef __GNUC__
+/* Should not be necessary but for some reason, DllMain is called twice at attachment and at detachment.*/
+static int xbt_dll_process_is_attached = 0;
+
+/* see also http://msdn.microsoft.com/en-us/library/ms682583%28VS.85%29.aspx */
+/* and http://www.microsoft.com/whdc/driver/kernel/DLL_bestprac.mspx */
+static BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
+{
+ if (fdwReason == DLL_PROCESS_ATTACH
+ && xbt_dll_process_is_attached == 0) {
+ xbt_dll_process_is_attached = 1;
+ xbt_preinit();
+ } else if (fdwReason == DLL_PROCESS_DETACH
+ && xbt_dll_process_is_attached == 1) {
+ xbt_dll_process_is_attached = 0;
+ }
+ return 1;
+}
+#endif
+
+#endif
+
+static void xbt_preinit(void) {
+ unsigned int seed = 2147483647;
+#ifdef _WIN32
+ SYSTEM_INFO si;
+ GetSystemInfo(&si);
+ xbt_pagesize = si.dwPageSize;
+#elif HAVE_SYSCONF
+ xbt_pagesize = sysconf(_SC_PAGESIZE);
+#else
+ #error Cannot get page size.
+#endif
-#include "xbt_modinter.h" /* prototype of other module's init/exit in XBT */
+ xbt_pagebits = 0;
+ int x = xbt_pagesize;
+ while(x >>= 1) {
+ ++xbt_pagebits;
+ }
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(module,xbt, "module handling");
+#ifdef _TWO_DIGIT_EXPONENT
+ /* Even printf behaves differently on Windows... */
+ _set_output_format(_TWO_DIGIT_EXPONENT);
+#endif
+ xbt_log_preinit();
+ xbt_backtrace_preinit();
+ xbt_os_thread_mod_preinit();
+ xbt_fifo_preinit();
+ xbt_dict_preinit();
+
+ srand(seed);
+#ifndef _WIN32
+ srand48(seed);
+#endif
+ atexit(xbt_postexit);
+}
-char *xbt_binary_name=NULL; /* Mandatory to retrieve neat backtraces */
-int xbt_initialized=0;
+static void xbt_postexit(void)
+{
+ if(!_sg_do_clean_atexit) return;
+ xbt_initialized--;
+ xbt_backtrace_postexit();
+ xbt_fifo_postexit();
+ xbt_dict_postexit();
+ xbt_os_thread_mod_postexit();
+ xbt_dynar_free(&xbt_cmdline);
+ xbt_log_postexit();
+ free(xbt_binary_name);
+#if HAVE_MC
+ mmalloc_postexit();
+#endif
+}
/** @brief Initialize the xbt mechanisms. */
-void
-xbt_init(int *argc, char **argv) {
- xbt_initialized++;
+void xbt_init(int *argc, char **argv)
+{
+ xbt_set_terminate();
- if (xbt_initialized!=1)
+ if (xbt_initialized++) {
+ XBT_DEBUG("XBT was initialized %d times.", xbt_initialized);
return;
+ }
xbt_binary_name = xbt_strdup(argv[0]);
- srand((unsigned int)time(NULL));
- VERB0("Initialize XBT");
+ xbt_cmdline = xbt_dynar_new(sizeof(char*),NULL);
+ for (int i=0;i<*argc;i++)
+ xbt_dynar_push(xbt_cmdline,&(argv[i]));
- xbt_log_init(argc,argv);
- xbt_thread_mod_init();
- xbt_context_init();
+ xbt_log_init(argc, argv);
}
-/** @brief Finalize the xbt mechanisms. */
-void
-xbt_exit(){
- xbt_initialized--;
- if (xbt_initialized == 0) {
- xbt_fifo_exit();
- xbt_dict_exit();
- xbt_context_exit();
- xbt_thread_mod_exit();
- }
- xbt_log_exit();
-
- if (xbt_initialized == 0)
- free(xbt_binary_name);
+/* these two functions belong to xbt/sysdep.h, which have no corresponding .c file */
+/** @brief like free, but you can be sure that it is a function */
+void xbt_free_f(void *p)
+{
+ free(p);
+}
+
+/** @brief should be given a pointer to pointer, and frees the second one */
+void xbt_free_ref(void *d)
+{
+ free(*(void **) d);
}
+/** @brief Kill the program in silence */
+void xbt_abort(void)
+{
+#ifdef COVERAGE
+ /* Call __gcov_flush on abort when compiling with coverage options. */
+ extern void __gcov_flush(void);
+ __gcov_flush();
+#endif
+#ifdef _WIN32
+ /* It was said *in silence*. We don't want to see the error message printed
+ * by the Microsoft's implementation of abort(). */
+ raise(SIGABRT);
+ signal(SIGABRT, SIG_DFL);
+ raise(SIGABRT);
+#endif
+ abort();
+}
