/// <summary>
///
/// </summary>
/// <param name="iCapacity"></param>
public LockFreeMultiDictionary(bool allowDuplicateValues)
{
m_AllowDuplicateValues = allowDuplicateValues;
m_MultiDictionary = new MultiDictionary <KeyT, ValueT>(m_AllowDuplicateValues);
}
/// <summary>
///
/// </summary>
private ValueT[] InternalToArrayValuesByKey(KeyT key)
{
MultiDictionary <KeyT, ValueT> newMultiDict = null;
MultiDictionary <KeyT, ValueT> oldMultiDict = null;
do
{
if (m_CachedMultiDictionary == m_MultiDictionary)
{
ValueT[] tempValues = s_ZeroValueArray;
Dictionary <KeyT, ValueT[]> tempValueDictionary = m_ValueDictionary;
if (tempValueDictionary != null)
{
tempValueDictionary.TryGetValue(key, out tempValues);
}
return(tempValues);
}
oldMultiDict = m_CachedMultiDictionary;
newMultiDict = m_MultiDictionary;
} while (Interlocked.CompareExchange <MultiDictionary <KeyT, ValueT> >(ref m_CachedMultiDictionary, newMultiDict, oldMultiDict) != oldMultiDict);
KeyT[] keyArray = new KeyT[newMultiDict.Count];
Dictionary <KeyT, ValueT[]> valueDictionary = new Dictionary <KeyT, ValueT[]>(newMultiDict.Count);
KeyValuePair <KeyT, ValueT[]>[] keyValuePairArray = new KeyValuePair <KeyT, ValueT[]> [newMultiDict.Count];
int iIndex = 0;
foreach (KeyValuePair <KeyT, ICollection <ValueT> > keyValuePair in newMultiDict)
{
keyArray[iIndex] = keyValuePair.Key;
ValueT[] tempValueArray = new ValueT[keyValuePair.Value.Count];
int iIndex2 = 0;
foreach (ValueT value in keyValuePair.Value)
{
tempValueArray[iIndex2] = value;
++iIndex2;
}
valueDictionary.Add(keyValuePair.Key, tempValueArray);
keyValuePairArray[iIndex] = new KeyValuePair <KeyT, ValueT[]>(keyValuePair.Key, tempValueArray);
++iIndex;
}
// 不能总是获取最新的数据
//bool locktoken = false;
//m_LockCachedDictionary.Enter(ref locktoken);
Monitor.Enter(m_LockCachedDictionary);
{
if (m_CachedMultiDictionary == newMultiDict)
{
m_KeyArray = keyArray;
m_ValueDictionary = valueDictionary;
m_KeyValuePairArray = keyValuePairArray;
}
}
// m_LockCachedDictionary.Exit();
Monitor.Exit(m_LockCachedDictionary);
ValueT[] returnValues = s_ZeroValueArray;
valueDictionary.TryGetValue(key, out returnValues);
return(returnValues);
}
/// <summary>
///
/// </summary>
public SafeMultiDictionary(bool allowDuplicateValues)
{
m_MultiDictionary = new MultiDictionary <KeyT, ValueT>(allowDuplicateValues);
}
