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/*
** $Id: lzio.h,v 1.11 2002/06/03 20:11:07 roberto Exp roberto $
** Buffered streams
** See Copyright Notice in lua.h
*/
#ifndef lzio_h
#define lzio_h
#include "lua.h"
/* For Lua only */
#define zread luaZ_zread
#define EOZ (-1) /* end of stream */
typedef struct zio ZIO;
#define zgetc(z) (((z)->n--)>0 ? \
cast(int, cast(unsigned char, *(z)->p++)) : \
luaZ_fill(z))
#define zname(z) ((z)->name)
void luaZ_init (ZIO *z, lua_Chunkreader reader, void *data, const char *name);
size_t luaZ_zread (ZIO* z, void* b, size_t n); /* read next n bytes */
int luaZ_lookahead (ZIO *z);
/* --------- Private Part ------------------ */
struct zio {
size_t n; /* bytes still unread */
const char *p; /* current position in buffer */
lua_Chunkreader reader;
void* data; /* additional data */
const char *name;
};
int luaZ_fill (ZIO *z);
#endif
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