- initial import

src/engine/helper/HL_Pointer.cpp

@@ -0,0 +1,55 @@
+/* Copyright(C) 2007-2014 VoIP objects (voipobjects.com)
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "HL_Pointer.h"
+
+UsageCounter::UsageCounter()
+{}
+
+UsageCounter::~UsageCounter()
+{}
+
+int UsageCounter::obtain(int usageId)
+{
+  Lock l(mGuard);
+  UsageMap::iterator usageIter = mUsage.find(usageId);
+  if (usageIter != mUsage.end())
+    usageIter->second = usageIter->second + 1;
+  else
+    mUsage[usageId] = 1;
+  
+  return usageCount();
+}
+
+int UsageCounter::release(int usageId)
+{
+  Lock l(mGuard);
+  UsageMap::iterator usageIter = mUsage.find(usageId);
+  if (usageIter == mUsage.end())
+    return usageCount();
+
+  usageIter->second = usageIter->second - 1;
+  if (!usageIter->second)
+    mUsage.erase(usageIter);
+  
+  return usageCount();
+}
+
+int UsageCounter::usageCount()
+{
+  Lock l(mGuard);
+  UsageMap::const_iterator usageIter;
+  int result = 0;
+  for (usageIter = mUsage.begin(); usageIter != mUsage.end(); usageIter++)
+    result += usageIter->second;
+
+  return result;
+}
+
+void UsageCounter::clear()
+{
+  Lock l(mGuard);
+  mUsage.clear();
+}