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[PSEH3]

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Simplify some code

svn path=/trunk/; revision=62622
This commit is contained in:
Timo Kreuzer 2014-04-05 14:38:42 +00:00
parent 578a9174d9
commit 9ad09cfd87
1 changed files with 9 additions and 21 deletions
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30
reactos/include/reactos/libs/pseh/pseh3.h
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@ -226,36 +226,24 @@ _SEH3$_Unregister(
#define _SEH3$_DECLARE_FILTER_FUNC(_Name)
#define _SEH3$_DEFINE_DUMMY_FINALLY(_Name)
/* The "nested" functions are a piece of code with a ret instruction at the end */
#define _SEH3$_NESTED_FUNC_OPEN() \
{ \
int _SEH3$_Result = 0; \
/* On invocation, the AllocaFrame field is loaded with the return esp value */
#define _SEH3$_NESTED_FUNC_RETURN() \
#define _SEH3$_NESTED_FUNC_RETURN(_Result) \
/* Restore esp and return to the caller */ \
asm volatile ("movl %[FixedEsp], %%esp\nret\n" \
: : "a"(_SEH3$_Result), [FixedEsp]"m"(_SEH3$_TrylevelFrame.AllocaFrame) : "memory")
: : "a"(_Result), [FixedEsp]"m"(_SEH3$_TrylevelFrame.AllocaFrame) : "memory")
#define _SEH3$_NESTED_FUNC_CLOSE() \
/* Return to the caller */ \
_SEH3$_NESTED_FUNC_RETURN(); \
/* The filter "function" */
#define _SEH3$_DEFINE_FILTER_FUNC(_Name, expression) \
{ \
/* Evaluate and return the filter expression */ \
_SEH3$_NESTED_FUNC_RETURN((expression)); \
}
/* The filter function */
#define _SEH3$_DEFINE_FILTER_FUNC(_Name, expression) \
_SEH3$_NESTED_FUNC_OPEN() \
{ \
/* Evaluate the filter expression */ \
_SEH3$_Result = (expression); \
} \
_SEH3$_NESTED_FUNC_CLOSE()
#define _SEH3$_FINALLY_FUNC_OPEN(_Name) \
_SEH3$_NESTED_FUNC_OPEN() \
{ \
/* This construct makes sure that the finally function returns */ \
/* a proper value at the end */ \
for (; ; (void)({_SEH3$_NESTED_FUNC_RETURN(); 0;}))
for (; ; (void)({_SEH3$_NESTED_FUNC_RETURN(0); 0;}))
#define _SEH3$_FILTER(_Filter, _FilterExpression) (&&_SEH3$_l_FilterOrFinally)
#define _SEH3$_FINALLY(_Finally) (&&_SEH3$_l_FilterOrFinally)