X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/682eb8ce658cd1cafc772d2f62b6fb9430471b81..aa29c3a2434a29e6901f1e98aa0c171ee15d73cc:/src/xbt/xbt_main.c diff --git a/src/xbt/xbt_main.c b/src/xbt/xbt_main.c index 4d3c1d6604..6f5688ff60 100644 --- a/src/xbt/xbt_main.c +++ b/src/xbt/xbt_main.c @@ -1,27 +1,28 @@ -/* $Id$ */ - /* module handling */ -/* Copyright (c) 2003, 2004 Martin Quinson. All rights reserved. */ +/* Copyright (c) 2006, 2007, 2008, 2009, 2010. 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 */ +#include "xbt/misc.h" +#include "simgrid_config.h" /*HAVE_MMAP*/ +#include "time.h" /* to seed the random generator */ #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 "xbt_modinter.h" /* prototype of other module's init/exit in XBT */ +#include "xbt_modinter.h" /* prototype of other module's init/exit in XBT */ -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(module,xbt, "module handling"); +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(module, xbt, "module handling"); -char *xbt_binary_name=NULL; /* Mandatory to retrieve neat backtraces */ -int xbt_initialized=0; +char *xbt_binary_name = NULL; /* Mandatory to retrieve neat backtraces */ +int xbt_initialized = 0; XBT_LOG_EXTERNAL_CATEGORY(graphxml_parse); XBT_LOG_EXTERNAL_CATEGORY(log); @@ -46,13 +47,43 @@ XBT_LOG_EXTERNAL_CATEGORY(xbt_queue); XBT_LOG_EXTERNAL_CATEGORY(xbt_set); XBT_LOG_EXTERNAL_CATEGORY(xbt_sync_os); -/** @brief Initialize the xbt mechanisms. */ -void -xbt_init(int *argc, char **argv) { - xbt_initialized++; - if (xbt_initialized!=1) - return; +/* 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; +static void xbt_postexit(void) _XBT_GNUC_DESTRUCTOR; +#ifdef _XBT_NEED_INIT_PRAGMA +#pragma init (xbt_preinit) +#pragma fini (xbt_postexit) +#endif + +#ifdef _XBT_WIN32 +#include + +/* Dummy prototype to make gcc happy */ +BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved); + + +/* 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 */ +BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) { + if (fdwReason == DLL_PROCESS_ATTACH) { + xbt_preinit(); + } else if (fdwReason == DLL_PROCESS_DETACH) { + xbt_postexit(); + } + return 1; +} + + +#endif + +static void xbt_preinit(void) { + #ifdef HAVE_MMAP + mmalloc_preinit(); + #endif + xbt_log_preinit(); /* Connect our log channels: that must be done manually under windows */ XBT_LOG_CONNECT(graphxml_parse, xbt); @@ -62,13 +93,13 @@ xbt_init(int *argc, char **argv) { XBT_LOG_CONNECT(strbuff, xbt); XBT_LOG_CONNECT(xbt_cfg, xbt); XBT_LOG_CONNECT(xbt_dict, xbt); - XBT_LOG_CONNECT(xbt_dict_add, xbt_dict); - XBT_LOG_CONNECT(xbt_dict_collapse, xbt_dict); - XBT_LOG_CONNECT(xbt_dict_cursor, xbt_dict); - XBT_LOG_CONNECT(xbt_dict_elm, xbt_dict); - XBT_LOG_CONNECT(xbt_dict_multi, xbt_dict); - XBT_LOG_CONNECT(xbt_dict_remove, xbt_dict); - XBT_LOG_CONNECT(xbt_dict_search, xbt_dict); + XBT_LOG_CONNECT(xbt_dict_add, xbt_dict); + XBT_LOG_CONNECT(xbt_dict_collapse, xbt_dict); + XBT_LOG_CONNECT(xbt_dict_cursor, xbt_dict); + XBT_LOG_CONNECT(xbt_dict_elm, xbt_dict); + XBT_LOG_CONNECT(xbt_dict_multi, xbt_dict); + XBT_LOG_CONNECT(xbt_dict_remove, xbt_dict); + XBT_LOG_CONNECT(xbt_dict_search, xbt_dict); XBT_LOG_CONNECT(xbt_dyn, xbt); XBT_LOG_CONNECT(xbt_ex, xbt); XBT_LOG_CONNECT(xbt_fifo, xbt); @@ -77,31 +108,59 @@ xbt_init(int *argc, char **argv) { XBT_LOG_CONNECT(xbt_queue, xbt); XBT_LOG_CONNECT(xbt_set, xbt); XBT_LOG_CONNECT(xbt_sync_os, xbt); - + + xbt_fifo_preinit(); + xbt_dict_preinit(); + + xbt_backtrace_preinit(); + xbt_os_thread_mod_preinit(); +} + +static void xbt_postexit(void) { + xbt_os_thread_mod_postexit(); + xbt_backtrace_postexit(); + + xbt_fifo_postexit(); + xbt_dict_postexit(); + + xbt_log_postexit(); + + free(xbt_binary_name); +#ifdef HAVE_MMAP + mmalloc_postexit(); +#endif +} + +/** @brief Initialize the xbt mechanisms. */ +void xbt_init(int *argc, char **argv) +{ + // FIXME it would be nice to assert that this function is called only once. But each gras process do call it... + xbt_initialized++; + + if (xbt_initialized >1) + return; + xbt_binary_name = xbt_strdup(argv[0]); - srand((unsigned int)time(NULL)); + srand((unsigned int) time(NULL)); VERB0("Initialize XBT"); - - xbt_backtrace_init(); - xbt_log_init(argc,argv); - xbt_os_thread_mod_init(); - xbt_context_mod_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_mod_exit(); - xbt_os_thread_mod_exit(); - xbt_log_exit(); - xbt_backtrace_exit(); - } - - if (xbt_initialized == 0) - free(xbt_binary_name); +void xbt_exit() { + WARN0("This function is deprecated, you shouldn't use it"); } + +/* 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 */ +XBT_PUBLIC(void) xbt_free_f(void *p) { + free(p); +} + +/** @brief should be given a pointer to pointer, and frees the second one */ +XBT_PUBLIC(void) xbt_free_ref(void *d) +{ + free(*(void **) d); +}