/// <summary>
/// 获取数据
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public valueType Get(keyType key)
{
if (isLog)
{
RandomKey <keyType> randomKey = key;
KeyValue <valueType, EventWaitHandle> value;
TRYGET:
Monitor.Enter(logLock);
if (queue.TryGetValue(ref randomKey, out value))
{
Monitor.Exit(logLock);
if (value.Value == null)
{
return(value.Key);
}
value.Value.WaitOne();
goto TRYGET;
}
try
{
value.Value = new EventWaitHandle(false, EventResetMode.ManualReset);
queue.Set(ref randomKey, value);
if (queue.Count > maxCount)
{
queue.UnsafePopNode();
}
}
finally { Monitor.Exit(logLock); }
try
{
value.Key = getValue(key);
}
finally
{
KeyValue <valueType, EventWaitHandle> cacheValue;
Monitor.Enter(logLock);
if (queue.TryGetOnly(key, out cacheValue) && cacheValue.Value == value.Value)
{
try
{
queue.SetOnly(key, new KeyValue <valueType, EventWaitHandle>(value.Key, null));
}
finally { Monitor.Exit(logLock); }
}
else
{
Monitor.Exit(logLock);
}
value.Value.Set();
}
return(value.Key);
}
return(getValue(key));
}
