/// <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(MSocket socket)
{
//If the socket is dead, destroy it.
if (!socket.IsAlive || hasDisponse)
{
Interlocked.Increment(ref DeadSocketsOnReturn);
socket.Close();
}
else
{
//Clean up socket
socket.Reset();
//Check pool size.
if (socketQueue.Count >= maxQueue)
{
//If the pool is full, destroy the socket.
socket.Close();
}
else if (socketQueue.Count > minQueue && socket.CreateTime.AddMinutes(30) < DateTime.Now)
{
//socket 服务超过半小时的，也可以休息了，只保留最底个数。
//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 (socketQueue)
{
socketQueue.Enqueue(socket);
}
}
}
}
internal void Execute(SocketPool pool, UseSocket use)
{
MSocket sock = null;
try
{
//Acquire a socket
sock = pool.Acquire();
//Use the socket as a parameter to the delegate and return its result.
if (sock != null)
{
use(sock);
}
}
catch (Exception e)
{
logger.Error("Error in Execute: " + pool.Host, e);
//Socket is probably broken
if (sock != null)
{
sock.Close();
}
}
finally
{
if (sock != null)
{
sock.Dispose();
}
}
}
internal T Execute <T>(SocketPool pool, T defaultValue, UseSocket <T> use)
{
MSocket sock = null;
try
{
//Acquire a socket
sock = pool.Acquire();
//Use the socket as a parameter to the delegate and return its result.
if (sock != null)
{
return(use(sock));
}
}
catch (Exception e)
{
logger.Error("Error in Execute<T>: " + pool.Host, e);
//Socket is probably broken
if (sock != null)
{
sock.Close();
}
}
finally
{
if (sock != null)
{
sock.Dispose();
}
}
return(defaultValue);
}
/// <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(MSocket 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);
}
}
}
}
