reactos/include/pseh.h

   1 /*
   2  Copyright (c) 2004 KJK::Hyperion
   3
   4  Permission is hereby granted, free of charge, to any person obtaining a copy of
   5  this software and associated documentation files (the "Software"), to deal in
   6  the Software without restriction, including without limitation the rights to
   7  use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
   8  of the Software, and to permit persons to whom the Software is furnished to do
   9  so, subject to the following conditions:
  10
  11  The above copyright notice and this permission notice shall be included in all
  12  copies or substantial portions of the Software.
  13
  14  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  SOFTWARE.
  21 */
  22
  23 #ifndef KJK_PSEH_H_
  24 #define KJK_PSEH_H_
  25
  26 /* Some useful macros */
  27 #if defined(__cplusplus)
  28 # define _SEH_PVOID_CAST(TYPE_, P_) ((TYPE_)(P_))
  29 #else
  30 # define _SEH_PVOID_CAST(TYPE_, P_) (P_)
  31 #endif
  32
  33 #if defined(FIELD_OFFSET)
  34 # define _SEH_FIELD_OFFSET FIELD_OFFSET
  35 #else
  36 # include <stddef.h>
  37 # define _SEH_FIELD_OFFSET offsetof
  38 #endif
  39
  40 #if defined(CONTAINING_RECORD)
  41 # define _SEH_CONTAINING_RECORD CONTAINING_RECORD
  42 #else
  43 # define _SEH_CONTAINING_RECORD(ADDR_, TYPE_, FIELD_) \
  44  ((TYPE_ *)(((char *)(ADDR_)) - _SEH_FIELD_OFFSET(TYPE_, FIELD_)))
  45 #endif
  46
  47 #if defined(__CONCAT)
  48 # define _SEH_CONCAT __CONCAT
  49 #else
  50 # define _SEH_CONCAT1(X_, Y_) X_ ## Y_
  51 # define _SEH_CONCAT(X_, Y_) _SEH_CONCAT1(X_, Y_)
  52 #endif
  53
  54 /* Locals sharing support */
  55 #define _SEH_LOCALS_TYPENAME(BASENAME_) \
  56  struct _SEH_CONCAT(_SEHLocalsTag, BASENAME_)
  57
  58 #define _SEH_DEFINE_LOCALS(BASENAME_) \
  59  _SEH_LOCALS_TYPENAME(BASENAME_)
  60
  61 #define _SEH_DECLARE_LOCALS(BASENAME_) \
  62  _SEH_LOCALS_TYPENAME(BASENAME_) _SEHLocals; \
  63  _SEH_LOCALS_TYPENAME(BASENAME_) * _SEHPLocals; \
  64  _SEHPLocals = &_SEHLocals;
  65
  66 /* Dummy locals */
  67 static _SEH_LOCALS_TYPENAME(_SEHDummyLocals) { int Dummy_; } _SEHLocals;
  68 static void __inline _SEHDummyLocalsUser(void) { (void)_SEHLocals; }
  69
  70 /* TODO: <pseh/native.h> to wrap native SEH implementations */
  71 #include <pseh/framebased.h>
  72
  73 #endif
  74
  75 /* EOF */