mirror of
https://github.com/reactos/reactos.git
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152 lines
5.7 KiB
C
152 lines
5.7 KiB
C
/*
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Copyright (c) 2004 KJK::Hyperion
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#ifndef KJK_PSEH_FRAMEBASED_H_
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#define KJK_PSEH_FRAMEBASED_H_
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#include <pseh/framebased/internal.h>
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#include <pseh/excpt.h>
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#ifndef offsetof
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# include <stddef.h>
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#endif
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/*
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Fall back to non-optimal, non-native NLG implementation for environments
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without their own (e.g., currently, kernel-mode ReactOS/Windows)
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*/
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#ifdef _SEH_NO_NATIVE_NLG
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# include <pseh/setjmp.h>
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# define longjmp _SEHLongJmp
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# define setjmp _SEHSetJmp
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# define jmp_buf _SEHJmpBuf_t
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#else
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# include <setjmp.h>
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#endif
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typedef struct __SEHFrame
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{
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_SEHPortableFrame_t SEH_Header;
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jmp_buf SEH_JmpBuf;
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void * SEH_Locals;
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}
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_SEHFrame_t;
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static __declspec(noreturn) void __stdcall _SEHCompilerSpecificHandler
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(
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_SEHPortableFrame_t * frame
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)
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{
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_SEHFrame_t * myframe;
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myframe = (_SEHFrame_t *)(((char *)frame) - offsetof(_SEHFrame_t, SEH_Header));
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longjmp(myframe->SEH_JmpBuf, 1);
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}
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#define _SEH_FILTER(NAME_) \
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int __stdcall NAME_ \
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( \
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struct _EXCEPTION_POINTERS * _SEHExceptionPointers, \
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struct __SEHPortableFrame * _SEHPortableFrame \
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)
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#define _SEH_FINALLY(NAME_) \
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void __stdcall NAME_ \
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( \
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struct __SEHPortableFrame * _SEHPortableFrame \
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)
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#define _SEH_TRY_FINALLY(FINALLY_) \
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_SEH_TRY_FILTER_FINALLY \
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( \
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(_SEHFilter_t)(_SEH_CONTINUE_SEARCH + 1), \
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(FINALLY_) \
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)
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#define _SEH_END_FINALLY _SEH_HANDLE _SEH_END
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#define _SEH_TRY_FILTER(FILTER_) \
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_SEH_TRY_FILTER_FINALLY((FILTER_), NULL)
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#define _SEH_TRY_HANDLE_FINALLY(FINALLY_) \
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_SEH_TRY_FILTER_FINALLY \
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( \
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(_SEHFilter_t)(_SEH_EXECUTE_HANDLER + 1), \
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(FINALLY_) \
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)
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#define _SEH_TRY \
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_SEH_TRY_HANDLE_FINALLY(NULL)
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#define _SEH_TRY_FILTER_FINALLY(FILTER_, FINALLY_) \
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{ \
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static const _SEHHandlers_t _SEHHandlers = \
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{ \
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(FILTER_), \
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_SEHCompilerSpecificHandler, \
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(FINALLY_) \
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}; \
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\
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_SEHFrame_t _SEHFrame; \
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volatile _SEHPortableFrame_t * _SEHPortableFrame; \
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\
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_SEHFrame.SEH_Header.SPF_Handlers = &_SEHHandlers; \
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\
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_SEHPortableFrame = &_SEHFrame.SEH_Header; \
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(void)_SEHPortableFrame; \
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\
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if(setjmp(_SEHFrame.SEH_JmpBuf) == 0) \
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{ \
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_SEHEnter(&_SEHFrame.SEH_Header); \
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\
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do \
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{
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#define _SEH_HANDLE \
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\
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} \
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while(0); \
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\
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_SEHLeave(&_SEHFrame.SEH_Header); \
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} \
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else \
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{ \
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_SEHLeave(&_SEHFrame.SEH_Header); \
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#define _SEH_END \
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} \
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\
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if(_SEHHandlers.SH_Finally) \
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_SEHHandlers.SH_Finally(&_SEHFrame.SEH_Header); \
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}
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#define _SEH_LEAVE break
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#define _SEH_GetExceptionCode() (unsigned long)(_SEHPortableFrame->SPF_Code)
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#define _SEH_GetExceptionPointers() \
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((struct _EXCEPTION_POINTERS *)_SEHExceptionPointers)
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#define _SEH_AbnormalTermination() (_SEHPortableFrame->SPF_Code != 0)
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#endif
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/* EOF */
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