Keychain/SecRuntime.h

   1 /*
   2  * Copyright (c) 2002 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18 //
  19 // SecRuntime.h - CF runtime interface
  20 //
  21 #ifndef _SECURITY_SECRUNTIME_H_
  22 #define _SECURITY_SECRUNTIME_H_
  23
  24 #include <CoreFoundation/CFRuntime.h>
  25 #include <Security/refcount.h>
  26
  27
  28 namespace Security
  29 {
  30
  31 namespace KeychainCore
  32 {
  33
  34 class SecCFObject : public RefCount
  35 {
  36 public:
  37         virtual ~SecCFObject();
  38     virtual bool equal(SecCFObject &other);
  39     virtual CFHashCode hash();
  40 };
  41
  42
  43 class SecCFType : public CFRuntimeBase
  44 {
  45 public:
  46         SecCFType(SecCFObject *obj);
  47         ~SecCFType();
  48
  49     RefPointer<SecCFObject> mObject;
  50 };
  51
  52
  53 class CFClassBase : protected CFRuntimeClass
  54 {
  55 protected:
  56     CFClassBase(const char *name);
  57
  58     const SecCFType *makeNew(SecCFObject *obj);
  59     const SecCFType *handle(SecCFObject *obj);
  60     SecCFObject *required(const SecCFType *type, OSStatus errorCode);
  61
  62 private:
  63     static void finalizeType(CFTypeRef cf);
  64     static Boolean equalType(CFTypeRef cf1, CFTypeRef cf2);
  65     static CFHashCode hashType(CFTypeRef cf);
  66
  67 public:
  68     CFTypeID typeId;
  69 };
  70
  71
  72 template <class Object, class APITypePtr, OSStatus ErrorCode>
  73 class CFClass : public CFClassBase
  74 {
  75 public:
  76     CFClass(const char *name) : CFClassBase(name) {}
  77
  78     APITypePtr handle(Object &obj)
  79     {
  80         return APITypePtr(CFClassBase::handle(&obj));
  81     }
  82
  83     Object *required(APITypePtr type)
  84     {
  85                 Object *object = dynamic_cast<Object *>(CFClassBase::required
  86                         (reinterpret_cast<const SecCFType *>(type), ErrorCode));
  87                 if (!object)
  88                         MacOSError::throwMe(ErrorCode);
  89
  90                 return object;
  91     }
  92
  93         // CF generator functions
  94         APITypePtr operator () (Object *obj)
  95         { return handle(*obj); }
  96
  97         APITypePtr operator () (const RefPointer<Object> &obj)
  98         { return handle(*obj); }
  99
 100         Object * operator () (APITypePtr ref)
 101         { return required(ref); }
 102 };
 103
 104
 105 } // end namespace KeychainCore
 106
 107 } // end namespace Security
 108
 109
 110 #endif // !_SECURITY_SECRUNTIME_H_