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#ifndef ZLIB_STREAMBUF_H_INCLUDED
#define ZLIB_STREAMBUF_H_INCLUDED
#include <stdexcept>
#include <streambuf>
#include <vector>
#include <zlib.h>
namespace zlib
{
///Exception thrown in case zlib encounters a problem
class zlib_error : public std::runtime_error
{
public:
const int errcode;
explicit zlib_error(const char* msg, int errcode):
std::runtime_error(msg
? std::string(zError(errcode)) + ": " + msg
: zError(errcode)),
errcode(errcode)
{}
};
///Base class for deflate_streambuf and inflate_streambuf
class zlib_streambuf : public std::streambuf
{
protected:
std::vector<char> in;
std::vector<char> out;
z_stream zstr;
explicit zlib_streambuf(size_t bufsize):
in(bufsize), out(bufsize)
{
zstr.zalloc = Z_NULL;
zstr.zfree = Z_NULL;
zstr.opaque = Z_NULL;
}
};
}
#endif // ZLIB_STREAMBUF_H_INCLUDED
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