OSX/libsecurity_utilities/lib/adornments.cpp

   1 /*
   2  * Copyright (c) 2000-2001,2003-2004,2011,2014 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24
  25 //
  26 // adornment - generic attached-storage facility
  27 //
  28 #include "adornments.h"
  29 #include <security_utilities/utilities.h>
  30 #include <security_utilities/debugging.h>
  31
  32
  33 namespace Security {
  34
  35
  36 //
  37 // Adornment needs a virtual destructor for safe deletion.
  38 //
  39 Adornment::~Adornment()
  40 { }
  41
  42
  43 //
  44 // Adornable deletes all pointed-to objects when it dies.
  45 //
  46 Adornable::~Adornable()
  47 {
  48         clearAdornments();
  49 }
  50
  51
  52 //
  53 // Primitive (non-template) adornment operations
  54 //
  55 Adornment *Adornable::getAdornment(Key key) const
  56 {
  57         if (mAdornments) {
  58                 AdornmentMap::const_iterator it = mAdornments->find(key);
  59                 return (it == mAdornments->end()) ? NULL : it->second;
  60         } else
  61                 return NULL;    // nada
  62 }
  63
  64 void Adornable::setAdornment(Key key, Adornment *ad)
  65 {
  66         Adornment *&slot = adornmentSlot(key);
  67         delete slot;
  68         slot = ad;
  69 }
  70
  71 Adornment *Adornable::swapAdornment(Key key, Adornment *ad)
  72 {
  73         std::swap(ad, adornmentSlot(key));
  74         return ad;
  75 }
  76
  77 Adornment *&Adornable::adornmentSlot(Key key)
  78 {
  79         if (!mAdornments)
  80                 mAdornments = new AdornmentMap;
  81         return (*mAdornments)[key];
  82 }
  83
  84 void Adornable::clearAdornments()
  85 {
  86         if (mAdornments) {
  87                 for_each_map_delete(mAdornments->begin(), mAdornments->end());
  88                 delete mAdornments;
  89                 mAdornments = NULL;
  90         }
  91 }
  92
  93 }       // end namespace Security