1 files changed, 44 insertions, 0 deletions
diff --git a/indra/llcommon/llfixedbuffer.h b/indra/llcommon/llfixedbuffer.h
new file mode 100644
index 0000000000..2ca21b2ded
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+++ b/indra/llcommon/llfixedbuffer.h
@@ -0,0 +1,44 @@
+/** 
+ * @file llfixedbuffer.h
+ * @brief A fixed size buffer of lines.
+ *
+ * Copyright (c) 2001-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#ifndef LL_LLFIXEDBUFFER_H
+#define LL_LLFIXEDBUFFER_H
+
+#include "timer.h"
+#include <deque>
+#include <string>
+#include "llstring.h"
+
+// Fixed size buffer for console output and other things.
+
+class LLFixedBuffer
+{
+public:
+	LLFixedBuffer(const U32 max_lines = 20);
+	virtual ~LLFixedBuffer();
+
+	LLTimer	mTimer;
+	U32		mMaxLines;
+	std::deque<LLWString>	mLines;
+	std::deque<F32>			mAddTimes;
+	std::deque<S32>			mLineLengths;
+
+	void clear(); // Clear the buffer, and reset it.
+	virtual void addLine(const LLString& utf8line);
+	virtual void addLine(const LLWString& line);
+
+	// Get lines currently in the buffer, up to max_size chars, max_length lines
+	char *getLines(U32 max_size = 0, U32 max_length = 0); 
+	void setMaxLines(S32 max_lines);
+protected:
+	virtual void removeExtraLines();
+};
+
+const U32 FIXED_BUF_MAX_LINE_LEN = 255; // Not including termnating 0
+
+#endif //LL_FIXED_BUFFER_H