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#pragma once
#include <stdint.h>
#include <string>
#include <vector>
#include <exception>
#include "endian.h"
namespace util
{
class membuffer
{
public:
membuffer(char * buffer, std::size_t size)
{
current = start = buffer;
end = start + size;
}
~membuffer()
{
// maybe? possibly? left out to avoid confusion. for now.
//delete start;
}
/**
* Read some value. That's all ;)
*/
template <class T>
void read(T& val)
{
val = *(T *)current;
current += sizeof(T);
}
/**
* Read a big-endian number
* valid for 2-byte, 4-byte and 8-byte variables
*/
template <class T>
void read_be(T& val)
{
val = util::bigswap(*(T *)current);
current += sizeof(T);
}
/**
* Read a string in the format:
* 2B length (big endian, unsigned)
* length bytes data
*/
void read_jstr(std::string & str)
{
uint16_t length = 0;
read_be(length);
str.append(current,length);
current += length;
}
/**
* Skip N bytes
*/
void skip (std::size_t N)
{
current += N;
}
private:
char * start, *end, *current;
};
}
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