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