LCOV - code coverage report
Current view: top level - glib/glib - glib-private.c (source / functions) Hit Total Coverage
Test: unnamed Lines: 6 6 100.0 %
Date: 2024-04-23 05:16:05 Functions: 3 3 100.0 %
Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /* GLIB - Library of useful routines for C programming
       2                 :            :  * Copyright (C) 2011 Red Hat, Inc.
       3                 :            :  *
       4                 :            :  * SPDX-License-Identifier: LGPL-2.1-or-later
       5                 :            :  *
       6                 :            :  * This library is free software; you can redistribute it and/or
       7                 :            :  * modify it under the terms of the GNU Lesser General Public
       8                 :            :  * License as published by the Free Software Foundation; either
       9                 :            :  * version 2.1 of the License, or (at your option) any later version.
      10                 :            :  *
      11                 :            :  * This library is distributed in the hope that it will be useful,
      12                 :            :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      13                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14                 :            :  * Lesser General Public License for more details.
      15                 :            :  *
      16                 :            :  * You should have received a copy of the GNU Lesser General Public
      17                 :            :  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
      18                 :            :  *
      19                 :            :  * Author: Colin Walters <walters@verbum.org>
      20                 :            :  */
      21                 :            : 
      22                 :            : #include "config.h"
      23                 :            : 
      24                 :            : #include "glib-private.h"
      25                 :            : #include "glib-init.h"
      26                 :            : #include "gutilsprivate.h"
      27                 :            : #include "gdatasetprivate.h"
      28                 :            : 
      29                 :            : #ifdef USE_INVALID_PARAMETER_HANDLER
      30                 :            : #include <crtdbg.h>
      31                 :            : #endif
      32                 :            : 
      33                 :            : /**
      34                 :            :  * glib__private__:
      35                 :            :  * @arg: Do not use this argument
      36                 :            :  *
      37                 :            :  * Do not call this function; it is used to share private
      38                 :            :  * API between glib, gobject, and gio.
      39                 :            :  */
      40                 :            : const GLibPrivateVTable *
      41                 :     434549 : glib__private__ (void)
      42                 :            : {
      43                 :            :   static const GLibPrivateVTable table = {
      44                 :            :     g_wakeup_new,
      45                 :            :     g_wakeup_free,
      46                 :            :     g_wakeup_get_pollfd,
      47                 :            :     g_wakeup_signal,
      48                 :            :     g_wakeup_acknowledge,
      49                 :            : 
      50                 :            :     g_get_worker_context,
      51                 :            : 
      52                 :            :     g_check_setuid,
      53                 :            :     g_main_context_new_with_next_id,
      54                 :            : 
      55                 :            :     g_dir_open_with_errno,
      56                 :            :     g_dir_new_from_dirp,
      57                 :            : 
      58                 :            :     glib_init,
      59                 :            : 
      60                 :            : #ifdef G_OS_WIN32
      61                 :            :     g_win32_stat_utf8,
      62                 :            :     g_win32_lstat_utf8,
      63                 :            :     g_win32_readlink_utf8,
      64                 :            :     g_win32_fstat,
      65                 :            :     g_win32_find_helper_executable_path,
      66                 :            :     g_win32_reopen_noninherited,
      67                 :            :     g_win32_handle_is_socket,
      68                 :            : #endif
      69                 :            : 
      70                 :            :     g_win32_push_empty_invalid_parameter_handler,
      71                 :            :     g_win32_pop_invalid_parameter_handler,
      72                 :            : 
      73                 :            :     g_find_program_for_path,
      74                 :            : 
      75                 :            :     g_uri_get_default_scheme_port,
      76                 :            : 
      77                 :            :     g_set_prgname_once,
      78                 :            : 
      79                 :            :     g_datalist_id_update_atomic,
      80                 :            :   };
      81                 :            : 
      82                 :     434549 :   return &table;
      83                 :            : }
      84                 :            : 
      85                 :            : #ifdef USE_INVALID_PARAMETER_HANDLER
      86                 :            : /*
      87                 :            :  * This is the (empty) invalid parameter handler
      88                 :            :  * that is used for Visual C++ 2005 (and later) builds
      89                 :            :  * so that we can use this instead of the system automatically
      90                 :            :  * aborting the process, when calling _get_osfhandle(), isatty()
      91                 :            :  * and _commit() (via g_fsync()) and so on with an invalid file
      92                 :            :  * descriptor.
      93                 :            :  *
      94                 :            :  * This is necessary so that the gspawn helper and the test programs
      95                 :            :  * will continue to run as expected, since we are purposely or
      96                 :            :  * forced to use invalid FDs.
      97                 :            :  *
      98                 :            :  * Please see https://learn.microsoft.com/en-us/cpp/c-runtime-library/parameter-validation?view=msvc-170
      99                 :            :  * for an explanation on this.
     100                 :            :  */
     101                 :            : static void
     102                 :            : empty_invalid_parameter_handler (const wchar_t *expression,
     103                 :            :                                  const wchar_t *function,
     104                 :            :                                  const wchar_t *file,
     105                 :            :                                  unsigned int   line,
     106                 :            :                                  uintptr_t      pReserved)
     107                 :            : {
     108                 :            : }
     109                 :            : 
     110                 :            : /* fallback to _set_invalid_parameter_handler() if we don't have _set_thread_local_invalid_parameter_handler() */
     111                 :            : #ifndef HAVE__SET_THREAD_LOCAL_INVALID_PARAMETER_HANDLER
     112                 :            : # define _set_thread_local_invalid_parameter_handler _set_invalid_parameter_handler
     113                 :            : #endif
     114                 :            : 
     115                 :            : #endif
     116                 :            : /*
     117                 :            :  * g_win32_push_empty_invalid_parameter_handler:
     118                 :            :  * @handler: a possibly uninitialized GWin32InvalidParameterHandler
     119                 :            :  */
     120                 :            : void
     121                 :         15 : g_win32_push_empty_invalid_parameter_handler (GWin32InvalidParameterHandler *handler)
     122                 :            : {
     123                 :            : #ifdef USE_INVALID_PARAMETER_HANDLER
     124                 :            :   /* use the empty invalid parameter handler to override the default invalid parameter_handler */
     125                 :            :   handler->pushed_handler = empty_invalid_parameter_handler;
     126                 :            :   handler->old_handler = _set_thread_local_invalid_parameter_handler (handler->pushed_handler);
     127                 :            : 
     128                 :            :   /* Disable the message box for assertions. */
     129                 :            :   handler->pushed_report_mode = 0;
     130                 :            :   handler->prev_report_mode = _CrtSetReportMode(_CRT_ASSERT, handler->pushed_report_mode);
     131                 :            : #endif
     132                 :         15 : }
     133                 :            : 
     134                 :            : /*
     135                 :            :  * g_win32_pop_invalid_parameter_handler:
     136                 :            :  * @handler: a GWin32InvalidParameterHandler processed with
     137                 :            :  * g_win32_push_empty_invalid_parameter_handler()
     138                 :            :  */
     139                 :            : void
     140                 :         15 : g_win32_pop_invalid_parameter_handler (GWin32InvalidParameterHandler *handler)
     141                 :            : {
     142                 :            : #ifdef USE_INVALID_PARAMETER_HANDLER
     143                 :            :   G_GNUC_UNUSED _invalid_parameter_handler popped_handler;
     144                 :            :   G_GNUC_UNUSED int popped_report_mode;
     145                 :            : 
     146                 :            :   /* Restore previous/default invalid parameter handler, check the value returned matches the one we previously pushed */
     147                 :            :   popped_handler = _set_thread_local_invalid_parameter_handler (handler->old_handler);
     148                 :            :   g_return_if_fail (handler->pushed_handler == popped_handler);
     149                 :            : 
     150                 :            :   /* Restore the message box for assertions, check the value returned matches the one we previously pushed */
     151                 :            :   popped_report_mode = _CrtSetReportMode(_CRT_ASSERT, handler->prev_report_mode);
     152                 :            :   g_return_if_fail (handler->pushed_report_mode == popped_report_mode);
     153                 :            : #endif
     154                 :         15 : }

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