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Changes lock to CCriticalSection

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This commit is contained in:
Alex Johnson
2022-09-07 11:46:06 -04:00
parent 4139556149
commit 9326703454
2 changed files with 90 additions and 56 deletions
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25
Pepperdash Core/Pepperdash Core/Comm/GenericSshClient.cs
View File

@@ -129,7 +129,7 @@ namespace PepperDash.Core
CTimer ReconnectTimer;
//Lock object to prevent simulatneous connect/disconnect operations
private readonly object connectLock = new object();
private CCriticalSection connectLock = new CCriticalSection();
private bool DisconnectLogged = false;
@@ -163,7 +163,6 @@ namespace PepperDash.Core
public GenericSshClient()
: base(SPlusKey)
{
StreamDebugging = new CommunicationStreamDebugging(SPlusKey);
CrestronEnvironment.ProgramStatusEventHandler += new ProgramStatusEventHandler(CrestronEnvironment_ProgramStatusEventHandler);
AutoReconnectIntervalMs = 5000;
@@ -213,8 +212,10 @@ namespace PepperDash.Core
}
ConnectEnabled = true;
lock (connectLock)
try
{
connectLock.Enter();
if (IsConnected)
{
Debug.Console(1, this, "Connection already connected. Exiting Connect()");
@@ -296,6 +297,10 @@ namespace PepperDash.Core
}
}
}
finally
{
connectLock.Leave();
}
}
/// <summary>
@@ -303,11 +308,16 @@ namespace PepperDash.Core
/// </summary>
public void Disconnect()
{
lock(connectLock)
try
{
connectLock.Enter();
// Stop trying reconnects, if we are
ReconnectTimer.Stop();
KillClient(SocketStatus.SOCKET_STATUS_BROKEN_LOCALLY);
}
finally
{
connectLock.Leave();
}
}
@@ -404,10 +414,15 @@ namespace PepperDash.Core
else
Debug.Console(1, this, Debug.ErrorLogLevel.Error, "Unhandled SSH client error: {0}", e.Exception);
lock (connectLock)
try
{
connectLock.Enter();
KillClient(SocketStatus.SOCKET_STATUS_BROKEN_REMOTELY);
}
finally
{
connectLock.Leave();
}
if (AutoReconnect && ConnectEnabled)
{
Debug.Console(1, this, "Checking autoreconnect: {0}, {1}ms", AutoReconnect, AutoReconnectIntervalMs);

121
Pepperdash Core/Pepperdash Core/Comm/GenericTcpIpClient.cs
View File

@@ -6,7 +6,6 @@ using System.Text.RegularExpressions;
using Crestron.SimplSharp;
using Crestron.SimplSharp.CrestronSockets;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
namespace PepperDash.Core
{
@@ -18,7 +17,7 @@ namespace PepperDash.Core
private const string SplusKey = "Uninitialized TcpIpClient";
/// <summary>
/// Enables debugging to console
/// Stream debugging
/// </summary>
public CommunicationStreamDebugging StreamDebugging { get; private set; }
@@ -39,23 +38,24 @@ namespace PepperDash.Core
public event EventHandler<GenericSocketStatusChageEventArgs> ConnectionChange;
private string _Hostname { get; set;}
private string _hostname;
/// <summary>
/// Address of server
/// </summary>
public string Hostname {
public string Hostname
{
get
{
return _Hostname;
return _hostname;
}
set
{
_Hostname = value;
if (Client != null)
_hostname = value;
if (_client != null)
{
Client.AddressClientConnectedTo = _Hostname;
_client.AddressClientConnectedTo = _hostname;
}
}
}
@@ -83,14 +83,14 @@ namespace PepperDash.Core
/// <summary>
/// The actual client class
/// </summary>
public TCPClient Client { get; private set; }
private TCPClient _client;
/// <summary>
/// True if connected to the server
/// Bool showing if socket is connected
/// </summary>
public bool IsConnected
{
get { return Client != null && Client.ClientStatus == SocketStatus.SOCKET_STATUS_CONNECTED; }
get { return _client != null && _client.ClientStatus == SocketStatus.SOCKET_STATUS_CONNECTED; }
}
/// <summary>
@@ -102,21 +102,19 @@ namespace PepperDash.Core
}
/// <summary>
/// Status of the socket
/// _client socket status Read only
/// </summary>
public SocketStatus ClientStatus
{
get
{
if (Client == null)
return SocketStatus.SOCKET_STATUS_NO_CONNECT;
return Client.ClientStatus;
return _client == null ? SocketStatus.SOCKET_STATUS_NO_CONNECT : _client.ClientStatus;
}
}
/// <summary>
/// Contains the familiar Simpl analog status values. This drives the ConnectionChange event
/// and IsConnected with be true when this == 2.
/// and IsConnected would be true when this == 2.
/// </summary>
public ushort UStatus
{
@@ -124,7 +122,7 @@ namespace PepperDash.Core
}
/// <summary>
/// Status of the socket
/// Status text shows the message associated with socket status
/// </summary>
public string ClientStatusText { get { return ClientStatus.ToString(); } }
@@ -140,7 +138,7 @@ namespace PepperDash.Core
public string ConnectionFailure { get { return ClientStatus.ToString(); } }
/// <summary>
/// If true, enables AutoConnect
/// bool to track if auto reconnect should be set on the socket
/// </summary>
public bool AutoReconnect { get; set; }
@@ -152,13 +150,14 @@ namespace PepperDash.Core
get { return (ushort)(AutoReconnect ? 1 : 0); }
set { AutoReconnect = value == 1; }
}
/// <summary>
/// Milliseconds to wait before attempting to reconnect. Defaults to 5000
/// </summary>
public int AutoReconnectIntervalMs { get; set; }
/// <summary>
/// Set only when the disconnect method is called.
/// Set only when the disconnect method is called
/// </summary>
bool DisconnectCalledByUser;
@@ -167,13 +166,14 @@ namespace PepperDash.Core
/// </summary>
public bool Connected
{
get { return Client.ClientStatus == SocketStatus.SOCKET_STATUS_CONNECTED; }
get { return _client.ClientStatus == SocketStatus.SOCKET_STATUS_CONNECTED; }
}
//Lock object to prevent simulatneous connect/disconnect operations
private readonly object connectLock = new object();
private CCriticalSection connectLock = new CCriticalSection();
CTimer RetryTimer;
// private Timer for auto reconnect
private CTimer RetryTimer;
/// <summary>
/// Constructor
@@ -186,18 +186,17 @@ namespace PepperDash.Core
: base(key)
{
StreamDebugging = new CommunicationStreamDebugging(key);
CrestronEnvironment.ProgramStatusEventHandler += new ProgramStatusEventHandler(CrestronEnvironment_ProgramStatusEventHandler);
AutoReconnectIntervalMs = 5000;
Hostname = address;
Port = port;
BufferSize = bufferSize;
AutoReconnectIntervalMs = 5000;
RetryTimer = new CTimer(o =>
{
Reconnect();
}, Timeout.Infinite);
CrestronEnvironment.ProgramStatusEventHandler += new ProgramStatusEventHandler(CrestronEnvironment_ProgramStatusEventHandler);
}
}
/// <summary>
/// Constructor
@@ -223,7 +222,6 @@ namespace PepperDash.Core
public GenericTcpIpClient()
: base(SplusKey)
{
StreamDebugging = new CommunicationStreamDebugging(SplusKey);
CrestronEnvironment.ProgramStatusEventHandler += new ProgramStatusEventHandler(CrestronEnvironment_ProgramStatusEventHandler);
AutoReconnectIntervalMs = 5000;
BufferSize = 2000;
@@ -262,9 +260,9 @@ namespace PepperDash.Core
{
RetryTimer.Stop();
RetryTimer.Dispose();
if (Client != null)
if (_client != null)
{
Client.SocketStatusChange -= this.Client_SocketStatusChange;
_client.SocketStatusChange -= this.Client_SocketStatusChange;
DisconnectClient();
}
return true;
@@ -288,8 +286,9 @@ namespace PepperDash.Core
}
}
lock(connectLock)
try
{
connectLock.Enter();
if (IsConnected)
{
Debug.Console(1, this, "Connection already connected. Exiting Connect()");
@@ -298,25 +297,28 @@ namespace PepperDash.Core
{
//Stop retry timer if running
RetryTimer.Stop();
Client = new TCPClient(Hostname, Port, BufferSize);
Client.SocketStatusChange -= Client_SocketStatusChange;
Client.SocketStatusChange += Client_SocketStatusChange;
_client = new TCPClient(Hostname, Port, BufferSize);
_client.SocketStatusChange -= Client_SocketStatusChange;
_client.SocketStatusChange += Client_SocketStatusChange;
DisconnectCalledByUser = false;
Client.ConnectToServerAsync(ConnectToServerCallback);
_client.ConnectToServerAsync(ConnectToServerCallback);
}
}
finally
{
connectLock.Leave();
}
}
private void Reconnect()
{
if (Client == null)
if (_client == null)
{
return;
}
lock (connectLock)
try
{
connectLock.Enter();
if (IsConnected || DisconnectCalledByUser == true)
{
Debug.Console(1, this, "Reconnect no longer needed. Exiting Reconnect()");
@@ -324,9 +326,13 @@ namespace PepperDash.Core
else
{
Debug.Console(1, this, "Attempting reconnect now");
Client.ConnectToServerAsync(ConnectToServerCallback);
_client.ConnectToServerAsync(ConnectToServerCallback);
}
}
finally
{
connectLock.Leave();
}
}
/// <summary>
@@ -334,13 +340,18 @@ namespace PepperDash.Core
/// </summary>
public void Disconnect()
{
lock (connectLock)
try
{
connectLock.Enter();
DisconnectCalledByUser = true;
// Stop trying reconnects, if we are
RetryTimer.Stop();
DisconnectClient();
}
finally
{
connectLock.Leave();
}
}
@@ -349,11 +360,11 @@ namespace PepperDash.Core
/// </summary>
public void DisconnectClient()
{
if (Client != null)
if (_client != null)
{
Debug.Console(1, this, "Disconnecting client");
if (IsConnected)
Client.DisconnectFromServer();
_client.DisconnectFromServer();
}
}
@@ -381,15 +392,20 @@ namespace PepperDash.Core
{
CrestronInvoke.BeginInvoke(o =>
{
lock (connectLock)
try
{
if (!IsConnected && AutoReconnect && !DisconnectCalledByUser && Client != null)
connectLock.Enter();
if (!IsConnected && AutoReconnect && !DisconnectCalledByUser && _client != null)
{
DisconnectClient();
Debug.Console(1, this, "Attempting reconnect, status={0}", Client.ClientStatus);
Debug.Console(1, this, "Attempting reconnect, status={0}", _client.ClientStatus);
RetryTimer.Reset(AutoReconnectIntervalMs);
}
}
finally
{
connectLock.Leave();
}
});
}
@@ -420,7 +436,9 @@ namespace PepperDash.Core
var str = Encoding.GetEncoding(28591).GetString(bytes, 0, bytes.Length);
if (StreamDebugging.RxStreamDebuggingIsEnabled)
{
Debug.Console(0, this, "Received {1} characters of text: '{0}'", ComTextHelper.GetDebugText(str), str.Length);
}
textHandler(this, new GenericCommMethodReceiveTextArgs(str));
}
@@ -438,8 +456,8 @@ namespace PepperDash.Core
// Check debug level before processing byte array
if (StreamDebugging.TxStreamDebuggingIsEnabled)
Debug.Console(0, this, "Sending {0} characters of text: '{1}'", text.Length, ComTextHelper.GetDebugText(text));
if(Client != null)
Client.SendData(bytes, bytes.Length);
if (_client != null)
_client.SendData(bytes, bytes.Length);
}
/// <summary>
@@ -463,8 +481,8 @@ namespace PepperDash.Core
{
if (StreamDebugging.TxStreamDebuggingIsEnabled)
Debug.Console(0, this, "Sending {0} bytes: '{1}'", bytes.Length, ComTextHelper.GetEscapedText(bytes));
if(Client != null)
Client.SendData(bytes, bytes.Length);
if (_client != null)
_client.SendData(bytes, bytes.Length);
}
/// <summary>
@@ -479,9 +497,10 @@ namespace PepperDash.Core
Debug.Console(0, this, "Socket status change {0} ({1})", clientSocketStatus, ClientStatusText);
WaitAndTryReconnect();
}
else
{
Debug.Console(1, this, "Socket status change {0} ({1})", clientSocketStatus, ClientStatusText);
Client.ReceiveDataAsync(Receive);
_client.ReceiveDataAsync(Receive);
}
var handler = ConnectionChange;