Major update:

- General bug fixes
- Implement search for multi-character marker search in BufferCore
  Replaced FindChar() method with FindStr() method
- Implemented LocalIO and LinkedIO in FunctionCore
- Connect LocalIO with FD in SelectableCore
- Implement Write buffer with Write Select in SelectableCore
- Improve validation checks in SelectableCore
- Use Handle ptr instead of Handle Names for Config methods

BufferCore.cpp

@@ -243,7 +243,7 @@ int CBuffer::ReadFromFD( int Handle, int MaxRead )
         // Read from file descriptor
         BufRemain = BufSize - BufEnd;
         BytesRead = read( Handle, &Buffer[BufEnd], ((BufRemain > DataRemain)? DataRemain : BufRemain) );
-        if (BytesRead < 0)
+        if (BytesRead <= 0)
             break;
 
         // Update Buffer Pointers
@@ -283,7 +283,7 @@ int CBuffer::WriteToFD( int Handle, int MaxLen )
     // Read Data into buffer
     ReadPos = BufStart;
     DataRemain = (MaxLen == -1)? BufLen : MaxLen;
-    while ((TotalWritten < MaxLen) && (BufLen > 0))
+    while (DataRemain)
     {
         // Read from file descriptor
         BufRemain = BufSize - ReadPos;
@@ -336,10 +336,12 @@ char CBuffer::PeekChar( int Pos, bool ClearChar )
 //---------------------------------------------------------------------------
 
 // Look for first occurrence of character in buffer
-bool CBuffer::FindChar( char SearchChar, int &FoundPos, int StartPos )
+bool CBuffer::FindStr( const char * SearchStr, int SearchLen, int &FoundPos, int StartPos )
 {
-    char *  CheckPos;
-    char *  Limit;
+    char *  CheckPos    = NULL;
+    char *  CheckLimit  = NULL;
+    char *  MatchPos    = NULL;
+    char *  MatchLimit  = NULL;
 
     // Check if buffer exists
     if (!BufLen) {
@@ -353,24 +355,35 @@ bool CBuffer::FindChar( char SearchChar, int &FoundPos, int StartPos )
         return false;
     }
 
-    // Get Search start point
-    if (BufStart + StartPos < BufSize) {
-        CheckPos = &Buffer[ BufStart+StartPos ];
-    } else {
-        CheckPos = &Buffer[ (BufStart+StartPos)-BufSize ];
-    }
+    // Get Search start point and limit
+    CheckPos = (BufStart + StartPos < BufSize)? &Buffer[ BufStart+StartPos ] : &Buffer[ (BufStart+StartPos)-BufSize ];
+    CheckLimit = &Buffer[BufSize-1];
+
+    // Set Match start point and limit
+    MatchPos   = (char*)SearchStr;
+    MatchLimit = (char*)&SearchStr[SearchLen-1];
 
     // Search for char
     FoundPos = StartPos;
-    Limit = &Buffer[BufSize-1];
     while (FoundPos < BufLen)
     {
-        if (*CheckPos == SearchChar)
-            return true;
+        // Check if char match
+        if (*CheckPos == *MatchPos) {
+            if (MatchPos == MatchLimit)
+                // Full match found
+                return true;
+            else
+                // Next char to match
+                MatchPos++;
+        }
+        else {
+            // Reset match point
+            MatchPos = (char*)SearchStr;
+        }
 
         // Next char
         FoundPos++;
-        if (CheckPos == Limit) {
+        if (CheckPos == CheckLimit) {
             CheckPos = Buffer;   // Roll-over, Start at beginning of buffer
         } else {
             CheckPos++;