--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/deps/Platinum/Source/Devices/MediaServer/PltMediaCache.cpp	Mon Jul 06 08:06:28 2009 -0700
@@ -0,0 +1,155 @@
+/*****************************************************************
+|
+|   Platinum - AV Media Cache
+|
+| Copyright (c) 2004-2008, Plutinosoft, LLC.
+| All rights reserved.
+| http://www.plutinosoft.com
+|
+| This program is free software; you can redistribute it and/or
+| modify it under the terms of the GNU General Public License
+| as published by the Free Software Foundation; either version 2
+| of the License, or (at your option) any later version.
+|
+| OEMs, ISVs, VARs and other distributors that combine and 
+| distribute commercially licensed software with Platinum software
+| and do not wish to distribute the source code for the commercially
+| licensed software under version 2, or (at your option) any later
+| version, of the GNU General Public License (the "GPL") must enter
+| into a commercial license agreement with Plutinosoft, LLC.
+| 
+| This program is distributed in the hope that it will be useful,
+| but WITHOUT ANY WARRANTY; without even the implied warranty of
+| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+| GNU General Public License for more details.
+|
+| You should have received a copy of the GNU General Public License
+| along with this program; see the file LICENSE.txt. If not, write to
+| the Free Software Foundation, Inc., 
+| 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+| http://www.gnu.org/licenses/gpl-2.0.html
+|
+****************************************************************/
+
+/*----------------------------------------------------------------------
+|   includes
++---------------------------------------------------------------------*/
+#include "PltMediaCache.h"
+
+NPT_SET_LOCAL_LOGGER("platinum.media.server.cache")
+
+/*----------------------------------------------------------------------
+|   PLT_MediaCache::PLT_MediaCache
++---------------------------------------------------------------------*/
+PLT_MediaCache::PLT_MediaCache()
+{
+}
+
+/*----------------------------------------------------------------------
+|   PLT_MediaCache::~PLT_MediaCache
++---------------------------------------------------------------------*/
+PLT_MediaCache::~PLT_MediaCache()
+{
+}
+
+/*----------------------------------------------------------------------
+|   PLT_MediaCache::GenerateKey
++---------------------------------------------------------------------*/
+NPT_String
+PLT_MediaCache::GenerateKey(const char* device_uuid, 
+                            const char* item_id)
+{
+    NPT_String key = "upnp://";
+    key += device_uuid;
+    key += "/";
+    key += item_id;
+
+    return key;
+}
+
+/*----------------------------------------------------------------------
+|   PLT_MediaCache::Clear
++---------------------------------------------------------------------*/
+NPT_Result
+PLT_MediaCache::Clear(const char* device_uuid, 
+                      const char* item_id)
+{
+    NPT_AutoLock lock(m_Mutex);
+    
+    NPT_String key = GenerateKey(device_uuid, item_id);
+    if (key.GetLength() == 0) return NPT_ERROR_INVALID_PARAMETERS;
+
+    NPT_List<PLT_MediaCacheEntry*>::Iterator entries = m_Items.GetEntries().GetFirstItem();
+    NPT_List<PLT_MediaCacheEntry*>::Iterator entry;
+    while (entries) {
+        entry = entries++;
+        if ((*entry)->GetKey() == (key)) {
+            m_Items.Erase(key);
+            return NPT_SUCCESS;
+        }
+    }
+
+    return NPT_FAILURE;
+}
+
+/*----------------------------------------------------------------------
+|   PLT_MediaCache::Clear
++---------------------------------------------------------------------*/
+NPT_Result
+PLT_MediaCache::Clear(const char* device_uuid)
+{
+    NPT_AutoLock lock(m_Mutex);
+
+    if (!device_uuid) return m_Items.Clear();
+
+    NPT_String key = GenerateKey(device_uuid, "");
+    NPT_List<PLT_MediaCacheEntry*>::Iterator entries = m_Items.GetEntries().GetFirstItem();
+    NPT_List<PLT_MediaCacheEntry*>::Iterator entry;
+    while (entries) {
+        entry = entries++;
+        NPT_String entry_key = (*entry)->GetKey();
+        if (entry_key.StartsWith(key)) {
+            m_Items.Erase(entry_key);
+        }
+    }
+
+    return NPT_SUCCESS;
+}
+
+/*----------------------------------------------------------------------
+|   PLT_MediaCache::Put
++---------------------------------------------------------------------*/
+NPT_Result
+PLT_MediaCache::Put(const char*                   device_uuid,
+                    const char*                   item_id, 
+                    PLT_MediaObjectListReference& list)
+{
+    NPT_AutoLock lock(m_Mutex);
+
+    NPT_String key = GenerateKey(device_uuid, item_id);
+    if (key.GetLength() == 0) return NPT_ERROR_INVALID_PARAMETERS;
+
+    m_Items.Erase(key);
+    return m_Items.Put(key, list);
+}
+
+/*----------------------------------------------------------------------
+|   PLT_MediaCache::Get
++---------------------------------------------------------------------*/
+NPT_Result
+PLT_MediaCache::Get(const char*                   device_uuid,
+                    const char*                   item_id, 
+                    PLT_MediaObjectListReference& list)
+{
+    NPT_AutoLock lock(m_Mutex);
+
+    NPT_String key = GenerateKey(device_uuid, item_id);
+    if (key.GetLength() == 0) return NPT_ERROR_INVALID_PARAMETERS;
+    
+    PLT_MediaObjectListReference* val = NULL;
+    NPT_CHECK_FINE(m_Items.Get(key, val));
+
+    list = *val;
+    return NPT_SUCCESS;
+}
+