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45 lines
866 B
45 lines
866 B
/*
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** $Id: lzio.h,v 1.10 2002/06/03 17:46:34 roberto Exp roberto $
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** Buffered streams
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** See Copyright Notice in lua.h
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*/
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#ifndef lzio_h
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#define lzio_h
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#include "lua.h"
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/* For Lua only */
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#define zread luaZ_zread
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#define EOZ (-1) /* end of stream */
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typedef struct zio ZIO;
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#define zgetc(z) (((z)->n--)>0 ? \
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cast(int, cast(unsigned char, *(z)->p++)) : \
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luaZ_fill(z))
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#define zname(z) ((z)->name)
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void luaZ_init (ZIO *z, lua_Getblock getblock, void *ud, const char *name);
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size_t luaZ_zread (ZIO* z, void* b, size_t n); /* read next n bytes */
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int luaZ_lookahead (ZIO *z);
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/* --------- Private Part ------------------ */
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struct zio {
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size_t n; /* bytes still unread */
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const char *p; /* current position in buffer */
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lua_Getblock getblock;
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void* ud; /* additional data */
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const char *name;
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};
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int luaZ_fill (ZIO *z);
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#endif
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