/// <summary>
/// Initializes a new instance of the <see cref="ConcurrentRequestExecutor"/> class with the specified
/// connection and memory pool.
/// </summary>
/// <param name="connection">The <see cref="S7Connection"/> that is used for this executor.</param>
/// <param name="memoryPool">
/// The <see cref="MemoryPool{T}" /> that is used for request and response memory allocations.
/// </param>
public ConcurrentRequestExecutor(S7Connection connection, MemoryPool <byte>?memoryPool = default)
{
if (connection.Parameters == null)
{
Sally7CommunicationSetupException.ThrowConnectionParametersNotSet();
}
Connection = connection;
socket = connection.TcpClient.Client;
bufferSize = connection.Parameters.GetRequiredBufferSize();
maxRequests = connection.Parameters.MaximumNumberOfConcurrentRequests;
this.memoryPool = memoryPool ?? MemoryPool <byte> .Shared;
jobPool = new JobPool(connection.Parameters.MaximumNumberOfConcurrentRequests);
sendSignal = new Signal();
receiveSignal = new Signal();
if (!sendSignal.TryInit())
{
Sally7Exception.ThrowFailedToInitSendingSignal();
}
if (!receiveSignal.TryInit())
{
Sally7Exception.ThrowFailedToInitReceivingSignal();
}
reader = new SocketTpktReader(socket);
#if !NETSTANDARD2_1_OR_GREATER && !NET5_0_OR_GREATER
sendAwaitable = new SocketAwaitable(new SocketAsyncEventArgs());
#endif
}
public Srv.Dto.S7.Model.S7Connection GetS7ConnectionModelById(IdObject idObject, CallContext context = default)
{
_logger.LogTrace("Query Behavior: " + GetType().FullName + "." + System.Reflection.MethodBase.GetCurrentMethod()?.Name);
Srv.Dto.S7.S7Connection connection;
if (idObject.Id.Equals(Guid.Empty))
{
connection = new S7Connection();
}
else
{
connection = _query.GetS7ConnectionById(idObject, context);
}
var automationTypeId = _queryKeyValue.AutomationTypeId(context);
var connectionTypeId = _queryS7KeyValue.ConnectionTypeId(context);
var cpuTypeId = _queryS7KeyValue.CpuTypeId(context);
return(new Srv.Dto.S7.Model.S7Connection(connection, automationTypeId.List, connectionTypeId.List, cpuTypeId.List));
}
/// <summary>
/// Initializes a new instance of the <see cref="ConcurrentRequestExecutor"/> class with the specified
/// connection and memory pool.
/// </summary>
/// <param name="connection">The <see cref="S7Connection"/> that is used for this executor.</param>
/// <param name="memoryPool">
/// The <see cref="MemoryPool{T}" /> that is used for request and response memory allocations.
/// </param>
public ConcurrentRequestExecutor(S7Connection connection, MemoryPool <byte> memoryPool)
{
if (connection.Parameters == null)
{
throw new ArgumentException(
"The connection must be initialized and it's Parameters property must have a value.");
}
Connection = connection;
socket = connection.TcpClient.Client;
bufferSize = connection.Parameters.GetRequiredBufferSize();
maxRequests = connection.Parameters.MaximumNumberOfConcurrentRequests;
this.memoryPool = memoryPool;
var maxNumberOfConcurrentRequests = connection.Parameters.MaximumNumberOfConcurrentRequests;
jobChannel = Channel.CreateBounded <byte>(maxNumberOfConcurrentRequests);
sendChannel = Channel.CreateBounded <byte>(1);
receiveChannel = Channel.CreateBounded <byte>(1);
if (!Enumerable.Range(1, maxNumberOfConcurrentRequests).All(i => jobChannel.Writer.TryWrite((byte)i)))
{
throw new Exception($"Failed to initialize the job channel.");
}
if (!sendChannel.Writer.TryWrite(1))
{
throw new Exception("Failed to initialize the sending channel.");
}
if (!receiveChannel.Writer.TryWrite(1))
{
throw new Exception("Failed to initialize the receiving channel.");
}
requests = Enumerable.Range(0, maxNumberOfConcurrentRequests).Select(_ => new Request()).ToArray();
reader = new SocketTpktReader(socket);
sendAwaitable = new SocketAwaitable(new SocketAsyncEventArgs());
}
/// <summary>
/// Initializes a new instance of the <see cref="ConcurrentRequestExecutor"/> class with the specified
/// connection.
/// </summary>
/// <param name="connection">The <see cref="S7Connection"/> that is used for this executor.</param>
public ConcurrentRequestExecutor(S7Connection connection) : this(connection, MemoryPool <byte> .Shared)
{
}
