148 lines
3.3 KiB
C
148 lines
3.3 KiB
C
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/*++
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Copyright (c) 1998 Microsoft Corporation
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Module Name:
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iisdef.h
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Abstract:
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The IIS shared definitions header.
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Author:
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Seth Pollack (sethp) 01-Dec-1998
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Revision History:
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--*/
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#ifndef _IISDEF_H_
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#define _IISDEF_H_
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//
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// Define some standard 64-bit stuff here
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//
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//
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// The DIFF macro should be used around an expression involving pointer
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// subtraction. The expression passed to DIFF is cast to a size_t type,
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// allowing the result to be easily assigned to any 32-bit variable or
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// passed to a function expecting a 32-bit argument.
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//
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#define DIFF(x) ((size_t)(x))
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//
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// Signature helpers
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//
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//
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// Create a signature that reads the same way in the debugger as how you
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// define it in code. Done by byte-swapping the DWORD passed into it.
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//
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// Typical usage:
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//
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// #define FOOBAR_SIGNATURE CREATE_SIGNATURE( 'FBAR' )
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// #define FOOBAR_SIGNATURE_FREED CREATE_SIGNATURE( 'fbaX' )
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//
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#define CREATE_SIGNATURE( Value ) \
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( \
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( ( ( ( DWORD ) Value ) & 0xFF000000 ) >> 24 ) | \
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( ( ( ( DWORD ) Value ) & 0x00FF0000 ) >> 8 ) | \
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( ( ( ( DWORD ) Value ) & 0x0000FF00 ) << 8 ) | \
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( ( ( ( DWORD ) Value ) & 0x000000FF ) << 24 ) \
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) \
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#ifndef __HTTP_SYS__
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//
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// Error handling helpers
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//
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#ifdef __cplusplus
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//
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// Recover the Win32 error from an HRESULT.
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//
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// The HRESULT must be a failure, i.e. FAILED(hr) must be true.
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// If these conditions are not met, then it returns the error code
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// ERROR_INVALID_PARAMETER.
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//
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inline DWORD WIN32_FROM_HRESULT(
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IN HRESULT hr
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)
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{
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if ( ( FAILED( hr ) ) &&
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( HRESULT_FACILITY( hr ) == FACILITY_WIN32 ) )
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{
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return ( HRESULT_CODE( hr ) );
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}
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else
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{
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// invalid parameter!
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// BUGBUG would be nice to assert here
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return hr;
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}
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}
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# else
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# define WIN32_FROM_HRESULT(hr) \
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(( (FAILED(hr)) && \
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(HRESULT_FACILITY(hr) == FACILITY_WIN32) \
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) \
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? \
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HRESULT_CODE(hr) \
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: hr \
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)
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#endif // _cplusplus
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#endif // !__HTTP_SYS__
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//
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// Generate an HRESULT from a LK_RETCODE.
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//
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// BUGBUG temporary; really we need a fix in the lkhash code.
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//
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#define HRESULT_FROM_LK_RETCODE( LkRetcode ) \
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( ( LkRetcode == LK_SUCCESS ) ? S_OK : E_FAIL )
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//
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// DNLEN is set to short value (15) that is good enough only for NetBIOS names
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// Until there is more suitable constant let's use our own
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//
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#define IIS_DNLEN (256)
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//
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// IIS_DEFAULT_INITIAL_STACK_SIZE is the default size of commited stack for threads
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// However DBGPRINTF uses a stack variables of approximately 0xf100 and hence
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// in debug builds we need significantly bigger stack.
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//
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#if DBG
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// Initial size of 96k to prevent stack overflows
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#define IIS_DEFAULT_INITIAL_STACK_SIZE 0x18000
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#else
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// Initial size of 32k to prevent stack overflows
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#define IIS_DEFAULT_INITIAL_STACK_SIZE 0x8000
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#endif
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#endif // _IISDEF_H_
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