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lightning-sunbird  0.9+nobinonly
nsID.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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00015  * The Original Code is mozilla.org code.
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00017  * The Initial Developer of the Original Code is
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00019  * Portions created by the Initial Developer are Copyright (C) 1998
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00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
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00037 
00038 #ifndef nsID_h__
00039 #define nsID_h__
00040 
00041 #include <string.h>
00042 
00043 #ifndef nscore_h___
00044 #include "nscore.h"
00045 #endif
00046 
00052 struct nsID {
00058   PRUint32 m0;
00059   PRUint16 m1;
00060   PRUint16 m2;
00061   PRUint8 m3[8];
00063 
00074   inline PRBool Equals(const nsID& other) const {
00075     // One would think that this could be done faster with a really
00076     // efficient implementation of memcmp(), but evidently no
00077     // memcmp()'s out there are better than this code.
00078     //
00079     // See bug http://bugzilla.mozilla.org/show_bug.cgi?id=164580 for
00080     // details.
00081 
00082     return (PRBool)
00083       ((((PRUint32*) &m0)[0] == ((PRUint32*) &other.m0)[0]) &&
00084        (((PRUint32*) &m0)[1] == ((PRUint32*) &other.m0)[1]) &&
00085        (((PRUint32*) &m0)[2] == ((PRUint32*) &other.m0)[2]) &&
00086        (((PRUint32*) &m0)[3] == ((PRUint32*) &other.m0)[3]));
00087   }
00088 
00093   NS_COM_GLUE PRBool Parse(const char *aIDStr);
00094 
00099   NS_COM_GLUE char* ToString() const;
00101 };
00102 
00103 /*
00104  * Class IDs
00105  */
00106 
00107 typedef nsID nsCID;
00108 
00109 // Define an CID
00110 #define NS_DEFINE_CID(_name, _cidspec) \
00111   const nsCID _name = _cidspec
00112 
00113 #define REFNSCID const nsCID&
00114 
00120 typedef nsID nsIID;
00121 
00126 #define REFNSIID const nsIID&
00127 
00133 #define NS_DEFINE_IID(_name, _iidspec) \
00134   const nsIID _name = _iidspec
00135 
00140 #define NS_DEFINE_STATIC_IID_ACCESSOR(the_iid) \
00141   static const nsIID& GetIID() {static const nsIID iid = the_iid; return iid;}
00142 
00147 #define NS_DEFINE_STATIC_CID_ACCESSOR(the_cid) \
00148   static const nsID& GetCID() {static const nsID cid = the_cid; return cid;}
00149 
00150 #endif
00151