barrier/io/CStreamBuffer.h

40 lines
729 B
C++

#ifndef CSTREAMBUFFER_H
#define CSTREAMBUFFER_H
#include "BasicTypes.h"
#include "stdlist.h"
#include "stdvector.h"
class CStreamBuffer {
public:
CStreamBuffer();
~CStreamBuffer();
// manipulators
// peek() returns a buffer of n bytes (which must be <= getSize()).
// pop() discards the next n bytes.
const void* peek(UInt32 n);
void pop(UInt32 n);
// write() appends n bytes to the buffer
void write(const void*, UInt32 n);
// accessors
// return the number of bytes in the buffer
UInt32 getSize() const;
private:
static const UInt32 kChunkSize;
typedef std::vector<UInt8> Chunk;
typedef std::list<Chunk> ChunkList;
ChunkList m_chunks;
UInt32 m_size;
UInt32 m_headUsed;
};
#endif