//Private method for reading results of the "get" command.
private bool readValue(PooledSocket socket, out object value, out string key, out ulong unique)
{
string response = socket.ReadResponse();
string[] parts = response.Split(' '); //Result line from server: "VALUE <key> <flags> <bytes> <cas unique>"
if (parts[0] == "VALUE")
{
key = parts[1];
SerializedType type = (SerializedType)Enum.Parse(typeof(SerializedType), parts[2]);
byte[] bytes = new byte[Convert.ToUInt32(parts[3], CultureInfo.InvariantCulture)];
if (parts.Length > 4)
{
unique = Convert.ToUInt64(parts[4]);
}
else
{
unique = 0;
}
socket.Read(bytes);
socket.SkipUntilEndOfLine(); //Skip the trailing \r\n
try {
value = Serializer.DeSerialize(bytes, type);
} catch (Exception e) {
//If deserialization fails, return null
value = null;
logger.Error("Error deserializing object for key '" + key + "' of type " + type + ".", e);
}
return(true);
}
else
{
key = null;
value = null;
unique = 0;
return(false);
}
}
/// <summary>
/// Returns a socket to the pool.
/// If the socket is dead, it will be destroyed.
/// If there are more than MaxPoolSize sockets in the pool, it will be destroyed.
/// If there are less than MinPoolSize sockets in the pool, it will always be put back.
/// If there are something inbetween those values, the age of the socket is checked.
/// If it is older than the SocketRecycleAge, it is destroyed, otherwise it will be
/// put back in the pool.
/// </summary>
internal void Return(PooledSocket socket)
{
//If the socket is dead, destroy it.
if (!socket.IsAlive)
{
Interlocked.Increment(ref deadsocketsonreturn);
socket.Close();
}
else
{
//Clean up socket
if (socket.Reset())
{
Interlocked.Increment(ref dirtysocketsonreturn);
}
//Check pool size.
if (queue.Count >= owner.MaxPoolSize)
{
//If the pool is full, destroy the socket.
socket.Close();
}
else if (queue.Count > owner.MinPoolSize && DateTime.Now - socket.Created > owner.SocketRecycleAge)
{
//If we have more than the minimum amount of sockets, but less than the max, and the socket is older than the recycle age, we destroy it.
socket.Close();
}
else
{
//Put the socket back in the pool.
lock (queue) {
queue.Enqueue(socket);
}
}
}
}