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190 lines
2.6 KiB
190 lines
2.6 KiB
/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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guid.hxx
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Abstract:
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This file contains the class definition for Global Unique Identifiers
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and syntax identifiers.
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Author:
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Steven Zeck (stevez) 07/01/90
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--*/
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#ifndef _GIUD_
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#define _GIUD_
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#include <memory.h>
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#define UUID_STRING_SIZE 37 // Size of a formated NS_UUID.
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/*++
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Class Definition:
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NS_UUID
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Abstract:
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Global Unique Identifier.
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--*/
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class NS_UUID {
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unsigned long data1;
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unsigned short data2[2];
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unsigned char data3[8];
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public:
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ASSERT_CLASS;
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NS_UUID () {}
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// compares two GUID for relationship, returns ordering value
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int
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operator - (
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IN NS_UUID& pGID
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);
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BOOL
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operator == (
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IN NS_UUID& pGID
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)
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{
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return(memcmp(this, &pGID, sizeof(NS_UUID)) == 0);
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}
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BOOL
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operator != (
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IN NS_UUID& pGID
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)
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{
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return(!(*this == pGID));
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}
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PUZ
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ToString (
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OUT PUZ Buffer
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);
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BOOL
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IsNil(
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);
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friend ostream& operator << (ostream&, NS_UUID&);
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};
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extern NS_UUID NilGlobalID;
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// Determine if this object is empty.
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inline BOOL
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NS_UUID::IsNil(
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)
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{
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return(memcmp(this, &NilGlobalID, sizeof(NS_UUID)) == 0);
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}
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/*++
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Class Definition:
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NS_SYNTAX_ID
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Abstract:
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Syntax identifer, which is a NS_UUID with a version pair.
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--*/
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class NS_SYNTAX_ID {
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private:
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NS_UUID syntaxGID;
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SYNTAX_VERSION versionRV;
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public:
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ASSERT_CLASS;
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NS_SYNTAX_ID () {};
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ACCESSOR(NS_UUID, syntaxGID);
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BOOL
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IsNil(
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);
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BOOL
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CompatibleInterface(
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NS_SYNTAX_ID &pSID
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);
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SYNTAX_VERSION&
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TheVersion(
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)
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{
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return(versionRV);
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}
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// relational operator
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long
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operator - (
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IN NS_SYNTAX_ID& pSID
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);
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BOOL
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operator == (
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IN NS_SYNTAX_ID& pSID
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)
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{
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return (*this - pSID == 0);
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}
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BOOL
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operator != (
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IN NS_SYNTAX_ID& pSID
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)
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{
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return (*this - pSID != 0);
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}
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friend ostream& operator << (ostream&, NS_SYNTAX_ID&);
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};
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extern NS_SYNTAX_ID NilSyntaxID;
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// Determine if this object is empty.
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inline BOOL
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NS_SYNTAX_ID::IsNil(
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)
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{
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return(memcmp(this, &NilSyntaxID, sizeof(NS_SYNTAX_ID)) == 0);
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}
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// Determine if two syntax identifiers an compatable.
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inline BOOL
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NS_SYNTAX_ID::CompatibleInterface(
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NS_SYNTAX_ID &pSID
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)
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{
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return(syntaxGID == pSID.syntaxGID &&
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versionRV.Compatable(pSID.versionRV) ||
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pSID.IsNil());
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}
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#endif // _GUID_
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