CBuffer: If the allowed buffer size is lowered, shrink the buffer

git-svn-id: https://znc.svn.sourceforge.net/svnroot/znc/trunk@1371 726aef4b-f618-498e-8847-2d620e286838

Buffer.cpp

@@ -74,3 +74,12 @@ bool CBuffer::GetNextLine(const CString& sTarget, CString& sRet) {
 	erase(begin());
 	return true;
 }
+
+void CBuffer::SetLineCount(unsigned int u) {
+	m_uLineCount = u;
+
+	// We may need to shrink the buffer if the allowed size got smaller
+	while (size() > m_uLineCount) {
+		erase(begin());
+	}
+}

Buffer.h

@@ -49,7 +49,7 @@ public:
 	void Clear() { clear(); }
 
 	// Setters
-	void SetLineCount(unsigned int u) { m_uLineCount = u; }
+	void SetLineCount(unsigned int u);
 	// !Setters
 
 	// Getters