dbuffer.h

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#pragma once

#include <sys/types.h>
#include <vector>
#include "../shared/sharedptr.h"


class dbuffer
{
private:
    size_t _length;
    std::vector<char> _data;

public:
    dbuffer (int reserve = 512);
    dbuffer (const dbuffer& other);
    virtual ~dbuffer ();

    /* Append the given byte string to the buffer */
    void add (const char* , size_t);
    /* Read the given number of bytes from the start of the buffer */
    size_t get (char* , size_t) const;
    /* Read the given number of bytes from the given position */
    size_t getAt (size_t, char* , size_t) const;
    /* Remove the given number of bytes from the start of the buffer */
    size_t remove (size_t);
    /* Read and remove in one pass */
    size_t extract (char* , size_t);

    size_t length () const;
};

typedef SharedPtr<dbuffer> dbufferptr;

inline size_t dbuffer::length () const
{
    return _length;
}