private void Free(string serviceName, JsonRpcConnection connection)
{
using (_shutdownLock.DisposableRead())
{
if (!_enableConnectionPool || _shutdown)
{
// pool is not being used or
// manager is already shutdown
connection.Dispose();
return;
}
// queue must exist
var queue = _pools[serviceName];
if (queue.Count >= _maxPoolConnections)
{
// let the connection actually go away
connection.Dispose();
return;
}
// pool the connection
queue.Enqueue(connection);
}
}
public bool TryAcquire(out JsonRpcConnection connection)
{
if (_queue.TryDequeue(out connection))
{
connection.SetPoolReclamation(this);
return(true);
}
return(false);
}
internal void Free(ConcurrentQueue <JsonRpcConnection> pool, JsonRpcConnection connection)
{
using (_shutdownLock.DisposableRead())
{
// There is a race between checking the current pool capacity i nthe condition and
// and queueing connections to the pool in the else branch.
// The amount of pooled connections may thus exceed the capacity at times,
// or some connections might not end up returned into the pool and reused.
if (_isDisposed || pool.Count >= _capacityPerService)
{
connection.Dispose();
}
else
{
pool.Enqueue(connection);
}
}
}
public void Return(JsonRpcConnection connection) => _owner.Free(_queue, connection);
public PooledConnection(ConnectionManager pools, string serviceName, JsonRpcConnection connection)
{
_connectionManager = pools;
_serviceName = serviceName;
_connection = connection;
}
public bool TryAcquire(out JsonRpcConnection connection) => _queue.TryDequeue(out connection);