Added a new helper to the flexbuf, and likewise to the connection class, since

it uses it heavily.

4 files changed, 32 insertions, 0 deletions

diff --git a/src/connection.cpp b/src/connection.cpp
index a5fac5b..f042705 100644
--- a/src/connection.cpp
+++ b/src/connection.cpp
@@ -29,6 +29,11 @@ Connection::~Connection()
         if( pProtocol != NULL ) delete pProtocol;
 }
 
+void Connection::ensureCapacity( int nSize )
+{
+        xOutputBuf.ensureCapacity( nSize );
+}
+
 bool Connection::appendOutput( const char *lpOutput, int nSize )
 {
         return xOutputBuf.appendData( lpOutput, nSize );
diff --git a/src/connection.h b/src/connection.h
index 5d2d9bd..7e1141d 100644
--- a/src/connection.h
+++ b/src/connection.h
@@ -51,6 +51,8 @@ public:
          */
         bool open( const char *sAddr, int nPort );
 
+        void ensureCapacity( int nSize );
+
         /** Append the given data to the output.  The data is presumed to be null
           * terminated.  To put binary data into the stream, use the other
           * appendOutput function.  This should be the only method used to
diff --git a/src/flexbuf.cpp b/src/flexbuf.cpp
index acd55a7..6d55294 100644
--- a/src/flexbuf.cpp
+++ b/src/flexbuf.cpp
@@ -204,3 +204,26 @@ int FlexBuf::findChar( char cTarget )
         return -1;
 }
 
+void FlexBuf::ensureCapacity( int nAmount )
+{
+        if( nLastChar + nAmount + 1 > nSize )
+        {
+                if( nFill + nAmount + 1 < nSize )
+                {
+                        memcpy( lpBuf, lpBuf+nFirstChar, nFill );
+                        nLastChar -= nFirstChar;
+                        nFirstChar = 0;
+                }
+                else
+                {
+                        nSize += nAmount+1;
+                        char *lpNewBuf = new char[nSize];
+                        memcpy( lpNewBuf, lpBuf+nFirstChar, nFill );
+                        delete[] lpBuf;
+                        lpBuf = lpNewBuf;
+                        nLastChar -= nFirstChar;
+                        nFirstChar = 0;
+                }
+        }
+}
+
diff --git a/src/flexbuf.h b/src/flexbuf.h
index a68dcc6..7d7f11a 100644
--- a/src/flexbuf.h
+++ b/src/flexbuf.h
@@ -144,6 +144,8 @@ public:
           */
         int findChar( char cTarget );
 
+        void ensureCapacity( int nAmount );
+
 private:
         /** The raw storage location of the FlexBuf. */
         char *lpBuf;