private async Task ReceivedCommunicationSetupJob(Memory <byte> buffer)
{
var data = S7CommSetupDatagram.TranslateFromMemory(buffer);
using (var dg = S7CommSetupAckDataDatagram
.TranslateToMemory(
S7CommSetupAckDataDatagram
.BuildFrom(_s7Context, data), out var memoryLength))
{
using (var sendData = _transport.Build(dg.Memory.Slice(0, memoryLength), out var sendLength))
{
var result = await _transport.Client.SendAsync(sendData.Memory.Slice(0, sendLength)).ConfigureAwait(false);
if (result == SocketError.Success)
{
//UpdateConnectionState(ConnectionState.PendingOpenPlc);
_s7Context.MaxAmQCalling = data.Parameter.MaxAmQCalling;
_s7Context.MaxAmQCalled = data.Parameter.MaxAmQCalling;
_s7Context.PduSize = data.Parameter.PduLength;
if (_concurrentJobs != null)
{
_concurrentJobs.Dispose();
}
_concurrentJobs = new SemaphoreSlim(_s7Context.MaxAmQCalling);
await UpdateConnectionState(ConnectionState.Opened).ConfigureAwait(false);
}
}
}
}
private Task ReceivedCommunicationSetupJob(Memory <byte> buffer)
{
var data = S7CommSetupDatagram.TranslateFromMemory(buffer);
Task.Run(() => HandleCommSetupAsync(data).ConfigureAwait(false));
return(Task.CompletedTask);
}
private async Task StartS7CommunicationSetup()
{
using (var dgmem = S7CommSetupDatagram.TranslateToMemory(S7CommSetupDatagram.Build(_s7Context, GetNextReferenceId()), out var commemLength))
{
using (var sendData = _transport.Build(dgmem.Memory.Slice(0, commemLength), out var sendLength))
{
var result = await _transport.Client.SendAsync(sendData.Memory.Slice(0, sendLength)).ConfigureAwait(false);
if (result == SocketError.Success)
{
await UpdateConnectionState(ConnectionState.PendingOpenPlc).ConfigureAwait(false);
}
}
}
}
private async Task StartCommunicationSetup()
{
var sendData = DataTransferDatagram
.TranslateToMemory(
DataTransferDatagram
.Build(_context,
S7CommSetupDatagram
.TranslateToMemory(
S7CommSetupDatagram
.Build(_s7Context)))
.FirstOrDefault());
var result = await _socket.SendAsync(sendData);
if (result == SocketError.Success)
{
UpdateConnectionState(ConnectionState.PendingOpenPlc);
}
}
private async Task HandleCommSetupAsync(S7CommSetupDatagram data)
{
using (var dg = S7CommSetupAckDataDatagram
.TranslateToMemory(
S7CommSetupAckDataDatagram
.BuildFrom(_s7Context, data, data.Header.ProtocolDataUnitReference), out var memoryLength))
{
using (var sendData = _transport.Build(dg.Memory.Slice(0, memoryLength), out var sendLength))
{
var result = await _transport.Connection.SendAsync(sendData.Memory.Slice(0, sendLength)).ConfigureAwait(false);
if (result == SocketError.Success)
{
var oldSemaCount = _s7Context.MaxAmQCalling;
_s7Context.MaxAmQCalling = data.Parameter.MaxAmQCalling;
_s7Context.MaxAmQCalled = data.Parameter.MaxAmQCalled;
_s7Context.PduSize = data.Parameter.PduLength;
UpdateJobsSemaphore(oldSemaCount, _s7Context.MaxAmQCalling);
await UpdateConnectionState(ConnectionState.Opened).ConfigureAwait(false);
}
}
}
}
