Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_utilities / lib / adornments.cpp

diff --git a/Security/libsecurity_utilities/lib/adornments.cpp b/Security/libsecurity_utilities/lib/adornments.cpp
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+/*
+ * Copyright (c) 2000-2001,2003-2004,2011,2014 Apple Inc. All Rights Reserved.
+ * 
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+
+//
+// adornment - generic attached-storage facility
+//
+#include "adornments.h"
+#include <security_utilities/utilities.h>
+#include <security_utilities/debugging.h>
+
+
+namespace Security {
+
+
+//
+// Adornment needs a virtual destructor for safe deletion.
+//
+Adornment::~Adornment()
+{ }
+
+
+//
+// Adornable deletes all pointed-to objects when it dies.
+//
+Adornable::~Adornable()
+{
+       clearAdornments();
+}
+
+
+//
+// Primitive (non-template) adornment operations
+//
+Adornment *Adornable::getAdornment(Key key) const
+{
+       if (mAdornments) {
+               AdornmentMap::const_iterator it = mAdornments->find(key);
+               return (it == mAdornments->end()) ? NULL : it->second;
+       } else
+               return NULL;    // nada
+}
+
+void Adornable::setAdornment(Key key, Adornment *ad)
+{
+       Adornment *&slot = adornmentSlot(key);
+       delete slot;
+       slot = ad;
+}
+
+Adornment *Adornable::swapAdornment(Key key, Adornment *ad)
+{
+       std::swap(ad, adornmentSlot(key));
+       return ad;
+}
+
+Adornment *&Adornable::adornmentSlot(Key key)
+{
+       if (!mAdornments)
+               mAdornments = new AdornmentMap;
+       return (*mAdornments)[key];
+}
+
+void Adornable::clearAdornments()
+{
+       if (mAdornments) {
+               for_each_map_delete(mAdornments->begin(), mAdornments->end());
+               delete mAdornments;
+               mAdornments = NULL;
+       }
+}
+
+}      // end namespace Security