tg2sip/libtgvoip/BufferInputStream.h

40 lines
927 B
C++

//
// libtgvoip is free and unencumbered public domain software.
// For more information, see http://unlicense.org or the UNLICENSE file
// you should have received with this source code distribution.
//
#ifndef LIBTGVOIP_BUFFERINPUTSTREAM_H
#define LIBTGVOIP_BUFFERINPUTSTREAM_H
#include <stdio.h>
#include <stdint.h>
namespace tgvoip{
class BufferInputStream{
public:
BufferInputStream(unsigned char* data, size_t length);
~BufferInputStream();
void Seek(size_t offset);
size_t GetLength();
size_t GetOffset();
size_t Remaining();
unsigned char ReadByte();
int64_t ReadInt64();
int32_t ReadInt32();
int16_t ReadInt16();
int32_t ReadTlLength();
void ReadBytes(unsigned char* to, size_t count);
BufferInputStream GetPartBuffer(size_t length, bool advance);
private:
void EnsureEnoughRemaining(size_t need);
unsigned char* buffer;
size_t length;
size_t offset;
};
}
#endif //LIBTGVOIP_BUFFERINPUTSTREAM_H