X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/85ba969329ba8ffcdd29e8adbfdb58047bfc80ee..73a0ae62cf92da83e861cfaf9ba0313cacbc4825:/src/xbt/xbt_main.cpp diff --git a/src/xbt/xbt_main.cpp b/src/xbt/xbt_main.cpp index 5cb3298475..9443d05a42 100644 --- a/src/xbt/xbt_main.cpp +++ b/src/xbt/xbt_main.cpp @@ -1,6 +1,6 @@ /* module handling */ -/* Copyright (c) 2006-2018. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2006-2022. 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. */ @@ -10,14 +10,16 @@ #include "simgrid/config.h" #include "simgrid/sg_config.hpp" #include "src/internal_config.h" -#include "src/xbt_modinter.h" /* prototype of other module's init/exit in XBT */ +#include "src/sthread/sthread.h" // sthread_inside_simgrid #include "xbt/config.hpp" +#include "xbt/coverage.h" #include "xbt/dynar.h" #include "xbt/log.h" #include "xbt/log.hpp" #include "xbt/misc.h" #include "xbt/module.h" /* this module */ #include "xbt/sysdep.h" +#include "xbt/xbt_modinter.h" /* prototype of other module's init/exit in XBT */ #include #include @@ -27,16 +29,24 @@ #if HAVE_UNISTD_H # include #endif +#include +#include 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 */ +namespace simgrid::xbt { +std::string binary_name; /* Name of the system process containing us (mandatory to retrieve neat backtraces) */ +std::vector cmdline; /* all we got in argv */ +} // namespace simgrid::xbt + int xbt_initialized = 0; -bool _sg_do_clean_atexit = true; +simgrid::config::Flag cfg_dbg_clean_atexit{ + "debug/clean-atexit", + "Whether to cleanup SimGrid at exit. Disable it if your code segfaults after its end.", + true}; int xbt_pagesize; int xbt_pagebits = 0; @@ -46,25 +56,24 @@ int xbt_pagebits = 0; */ static void xbt_preinit() XBT_ATTRIB_CONSTRUCTOR(200); static void xbt_postexit(); +void sthread_enable() {} // These symbols are used from ContextSwapped in any case, but they are only useful +void sthread_disable() {} // when libsthread is LD_PRELOADED. In this case, sthread's implem gets used instead. #ifdef _WIN32 #include #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; + static bool xbt_dll_process_is_attached = false; + if (fdwReason == DLL_PROCESS_ATTACH && not xbt_dll_process_is_attached) { + xbt_dll_process_is_attached = true; xbt_preinit(); - } else if (fdwReason == DLL_PROCESS_DETACH - && xbt_dll_process_is_attached == 1) { - xbt_dll_process_is_attached = 0; + } else if (fdwReason == DLL_PROCESS_DETACH && xbt_dll_process_is_attached) { + xbt_dll_process_is_attached = false; } return 1; } @@ -74,42 +83,33 @@ static BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserv static void xbt_preinit() { - unsigned int seed = 2147483647; #ifdef _WIN32 SYSTEM_INFO si; GetSystemInfo(&si); xbt_pagesize = si.dwPageSize; #elif HAVE_SYSCONF - xbt_pagesize = sysconf(_SC_PAGESIZE); + xbt_pagesize = static_cast(sysconf(_SC_PAGESIZE)); #else # error Cannot get page size. #endif - xbt_pagebits = log2(xbt_pagesize); + xbt_pagebits = static_cast(log2(xbt_pagesize)); #ifdef _TWO_DIGIT_EXPONENT /* Even printf behaves differently on Windows... */ _set_output_format(_TWO_DIGIT_EXPONENT); #endif xbt_log_preinit(); - xbt_os_thread_mod_preinit(); xbt_dict_preinit(); - - srand(seed); -#ifndef _WIN32 - srand48(seed); -#endif atexit(xbt_postexit); } static void xbt_postexit() { - if (not _sg_do_clean_atexit) + if (not cfg_dbg_clean_atexit) return; xbt_initialized--; xbt_dict_postexit(); - xbt_os_thread_mod_postexit(); - xbt_dynar_free(&xbt_cmdline); xbt_log_postexit(); #if SIMGRID_HAVE_MC mmalloc_postexit(); @@ -119,31 +119,31 @@ static void xbt_postexit() /** @brief Initialize the xbt mechanisms. */ void xbt_init(int *argc, char **argv) { - simgrid::xbt::install_exception_handler(); - xbt_initialized++; if (xbt_initialized > 1) { XBT_DEBUG("XBT has been initialized %d times.", xbt_initialized); return; } - xbt_binary_name = argv[0]; - xbt_cmdline = xbt_dynar_new(sizeof(char*), NULL); + simgrid::xbt::install_exception_handler(); + + if (*argc > 0) + simgrid::xbt::binary_name = argv[0]; for (int i = 0; i < *argc; i++) - xbt_dynar_push(xbt_cmdline,&(argv[i])); + simgrid::xbt::cmdline.emplace_back(argv[i]); xbt_log_init(argc, argv); } /* these two functions belong to xbt/sysdep.h, which have no corresponding .c file */ /** @brief like xbt_free, but you can be sure that it is a function */ -void xbt_free_f(void *p) +void xbt_free_f(void* p) noexcept(noexcept(::free)) { xbt_free(p); } /** @brief should be given a pointer to pointer, and frees the second one */ -void xbt_free_ref(void *d) +void xbt_free_ref(void* d) noexcept(noexcept(::free)) { xbt_free(*(void**)d); } @@ -151,11 +151,8 @@ void xbt_free_ref(void *d) /** @brief Kill the program in silence */ void xbt_abort() { -#ifdef COVERAGE /* Call __gcov_flush on abort when compiling with coverage options. */ - extern void __gcov_flush(); - __gcov_flush(); -#endif + coverage_checkpoint(); #ifdef _WIN32 /* We said *in silence*. We don't want to see the error message printed by Microsoft's implementation of abort(). */ raise(SIGABRT); @@ -164,3 +161,10 @@ void xbt_abort() #endif abort(); } + +#ifndef HAVE_SMPI +int SMPI_is_inited() +{ + return false; +} +#endif \ No newline at end of file