Important Update:

- FunctionCore
  - So not set Function JSON "config" param to empty object by default
  - Change TChannelLink to reference Channel direct
  - Add Input/Output to TChannelLink
    - Replace LinkChannel() Bidirectional param with Input/Output param
    - Update JSON config as well
  - Implement Channel "Ready" state and events
    - Remove Input/OutputEnabled parameters and related methods
    - Remove from JSON config as well
    - Update AddChannel() method accordingly
  - Add Ref param to struct TChannel
- SelectableCore:
  - Convert inline ChangeState() to non-inline method
  - Move ChangeState() to last step in open/close methods
  - Add Channels in Not Ready state
  - Change Channel state when Handle state changed
- DeviceCore:
  - Add Channels in Ready state
- FileCore:
  - Add Channel in Not Ready state

SelectableBare.cpp

@@ -112,7 +112,7 @@ THandle *  CSelectableBare::CreateHandle( const char * HandleName, bool CreateCh
 
     // Create Matching Channel
     if (CreateChannel) {
-        (*Handle)->Channel = AddChannel( HandleName );
+        (*Handle)->Channel = AddChannel( HandleName, false );
     }
 
     return *Handle;
@@ -218,6 +218,31 @@ bool  CSelectableBare::ClearHandle( THandle * Handle )
 }
 //---------------------------------------------------------------------------
 
+bool CSelectableBare::ChangeState( THandle * Handle, EConnectState State )
+{
+    bool  Ready;
+
+    // Validate
+    if (!Handle || (Handle->State == State))
+        return false;
+
+    // Set Call back
+    if (Handle->StateCallback[ (int)State ])
+        (Handle->StateCallback[ (int)State ])( this, Handle, State );
+
+    // Change state
+    Handle->State = State;
+
+    // Update Channel
+    if (Handle->Channel) {
+        Ready = ((Handle->State == csOpen) || (Handle->State == csDataWaiting));
+        if (Handle->Channel->Ready != Ready)
+            SetChannelState( Handle->Channel, Ready );
+    }
+    return true;
+}
+//---------------------------------------------------------------------------
+
 bool CSelectableBare::SetCallback( THandle * Handle, EConnectState pState, FHandleCallback pCallback )
 {
     // Validate
@@ -356,6 +381,7 @@ int CSelectableBare::Open( THandle * Handle, bool DelayResolve )
 {
     THandle *   NewHandle   = NULL;
 
+
     // Validate
     if (!Handle || (Handle->Type == ctNone)) {
         return -1;
@@ -391,11 +417,11 @@ int CSelectableBare::Open( THandle * Handle, bool DelayResolve )
         Selector->Add( Handle->FD, true, false, Handle, this );
     }
 
-    // Set state
-    ChangeState( Handle, csOpen );
-
     // Set timer (for re-open or auto-close)
     SetStartTime( &Handle->LastAction );
+
+    // Set state
+    ChangeState( Handle, csOpen );
     return (NewHandle)? NewHandle->FD : -1;
 };
 //---------------------------------------------------------------------------
@@ -411,7 +437,16 @@ bool CSelectableBare::Close( THandle * Handle, bool QuickReopen )
 
     // Close Handle
     Fail = (close( Handle->FD ))? true : false;
-    ChangeState( Handle, ((Fail)? csFailed   : csClosed) );
+
+    // Remove from Select List
+    if (!Fail && Selector) {
+        if (Handle->Type != ctUDPremote) {
+            Selector->Remove( Handle->FD, true, true );
+        }
+    }
+
+    // Reset FD
+    Handle->FD = ((Fail)? Handle->FD : -1);
 
     // Start timer (for re-open)
     if (QuickReopen)
@@ -423,15 +458,8 @@ bool CSelectableBare::Close( THandle * Handle, bool QuickReopen )
     if (Log)  Log->Message( LogLevel, dlMedium, "%s/%s: Handle '%s' - %s",
                             ProcessName, Name, Handle->Name, ((Fail)? "failed" : "closed") );
 
-    // Remove from Select List
-    if (!Fail && Selector) {
-        if (Handle->Type != ctUDPremote) {
-            Selector->Remove( Handle->FD, true, true );
-        }
-    }
-
-    // Reset FD
-    Handle->FD = ((Fail)? Handle->FD : -1);
+    // Set State
+    ChangeState( Handle, ((Fail)? csFailed   : csClosed) );
     return true;
 }
 //---------------------------------------------------------------------------
@@ -695,9 +723,9 @@ int CSelectableBare::Input( const char * ChannelName, const char * SourceRef, co
                                 ProcessName, Name, ((SourceRef && *SourceRef)? SourceRef : "(Any)"), ChannelName );
         return 0;
     }
-    else if (!Channel->InputEnabled) {
+    else if (!Channel->Ready) {
         // Channel disabled
-        if (Log)  Log->Message( LogLevel, dlHigh, "%s/%s: Channel '%s'->'%s' - Input rejected, Channel input disabled",
+        if (Log)  Log->Message( LogLevel, dlHigh, "%s/%s: Channel '%s'->'%s' - Input rejected, Channel not Ready",
                                 ProcessName, Name, ((SourceRef && *SourceRef)? SourceRef : "(Any)"), ChannelName );
         return 0;
     }