llfixedbuffer.h

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#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

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