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#ifndef __BUFFER_H__
#define __BUFFER_H__
#include <stdlib.h>
#include <string>
/// Dynamic growing buffer
class Buffer
{
private:
size_t size;
size_t allocated;
void *data;
int currentPos;
public:
/// Create buffer
/// \param size initial size of buffer
/// \param allocated bytes to allocate
Buffer(int size=0, int allocated=1024);
~Buffer();
public:
/// Set buffer size, expands memory if needed
/// \param size new size
void setSize(size_t size);
/// Get current size of buffer
size_t getSize();
/// Get actual bytes used by buffer
size_t getAllocated();
/// Get pointer to data
void* getData();
public:
/// Move pointer to specified position.
/// \param offset offset from buffer start
void gotoPos(int offset);
/// Add data to buffer and advance current position by data length.
/// Grow buffer if needed.
/// \param data pointer to data
/// \param length data size.
size_t putData(const unsigned char *data, size_t length);
/// Add data to buffer and advance current position by data length.
/// Grow buffer if needed.
/// \param data pointer to data
/// \param length data size.
size_t putData(const char *data, size_t length) {
return putData((const unsigned char*)data, length);
};
/// Add integer to buffer and advance current position by 4.
/// Grow buffer if needed.
/// \param value value to add.
size_t putInteger(int value);
/// Add string to buffer encoded in UTF-8 and advance current
/// position by string length. String stored prefixed by
/// string length.
/// Grow buffer if needed.
/// \param string value to add.
size_t putUtf8(const std::wstring &string);
/// Add byte to buffer and advance current position by 1.
/// Grow buffer if needed.
/// \param value value to add.
size_t putByte(unsigned char value);
};
#endif
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