| /* Invalid parameter handler for MSVC runtime libraries. |
| Copyright (C) 2011-2016 Free Software Foundation, Inc. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License along |
| with this program; if not, see <http://www.gnu.org/licenses/>. */ |
| |
| #include <config.h> |
| |
| /* Specification. */ |
| #include "msvc-inval.h" |
| |
| #if HAVE_MSVC_INVALID_PARAMETER_HANDLER \ |
| && !(MSVC_INVALID_PARAMETER_HANDLING == SANE_LIBRARY_HANDLING) |
| |
| /* Get _invalid_parameter_handler type and _set_invalid_parameter_handler |
| declaration. */ |
| # include <stdlib.h> |
| |
| # if MSVC_INVALID_PARAMETER_HANDLING == DEFAULT_HANDLING |
| |
| static void __cdecl |
| gl_msvc_invalid_parameter_handler (const wchar_t *expression, |
| const wchar_t *function, |
| const wchar_t *file, |
| unsigned int line, |
| uintptr_t dummy) |
| { |
| } |
| |
| # else |
| |
| /* Get declarations of the native Windows API functions. */ |
| # define WIN32_LEAN_AND_MEAN |
| # include <windows.h> |
| |
| # if defined _MSC_VER |
| |
| static void __cdecl |
| gl_msvc_invalid_parameter_handler (const wchar_t *expression, |
| const wchar_t *function, |
| const wchar_t *file, |
| unsigned int line, |
| uintptr_t dummy) |
| { |
| RaiseException (STATUS_GNULIB_INVALID_PARAMETER, 0, 0, NULL); |
| } |
| |
| # else |
| |
| /* An index to thread-local storage. */ |
| static DWORD tls_index; |
| static int tls_initialized /* = 0 */; |
| |
| /* Used as a fallback only. */ |
| static struct gl_msvc_inval_per_thread not_per_thread; |
| |
| struct gl_msvc_inval_per_thread * |
| gl_msvc_inval_current (void) |
| { |
| if (!tls_initialized) |
| { |
| tls_index = TlsAlloc (); |
| tls_initialized = 1; |
| } |
| if (tls_index == TLS_OUT_OF_INDEXES) |
| /* TlsAlloc had failed. */ |
| return ¬_per_thread; |
| else |
| { |
| struct gl_msvc_inval_per_thread *pointer = |
| (struct gl_msvc_inval_per_thread *) TlsGetValue (tls_index); |
| if (pointer == NULL) |
| { |
| /* First call. Allocate a new 'struct gl_msvc_inval_per_thread'. */ |
| pointer = |
| (struct gl_msvc_inval_per_thread *) |
| malloc (sizeof (struct gl_msvc_inval_per_thread)); |
| if (pointer == NULL) |
| /* Could not allocate memory. Use the global storage. */ |
| pointer = ¬_per_thread; |
| TlsSetValue (tls_index, pointer); |
| } |
| return pointer; |
| } |
| } |
| |
| static void __cdecl |
| gl_msvc_invalid_parameter_handler (const wchar_t *expression, |
| const wchar_t *function, |
| const wchar_t *file, |
| unsigned int line, |
| uintptr_t dummy) |
| { |
| struct gl_msvc_inval_per_thread *current = gl_msvc_inval_current (); |
| if (current->restart_valid) |
| longjmp (current->restart, 1); |
| else |
| /* An invalid parameter notification from outside the gnulib code. |
| Give the caller a chance to intervene. */ |
| RaiseException (STATUS_GNULIB_INVALID_PARAMETER, 0, 0, NULL); |
| } |
| |
| # endif |
| |
| # endif |
| |
| static int gl_msvc_inval_initialized /* = 0 */; |
| |
| void |
| gl_msvc_inval_ensure_handler (void) |
| { |
| if (gl_msvc_inval_initialized == 0) |
| { |
| _set_invalid_parameter_handler (gl_msvc_invalid_parameter_handler); |
| gl_msvc_inval_initialized = 1; |
| } |
| } |
| |
| #endif |