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#ifndef _ZSTD_DECOMPRESS_
#define _ZSTD_DECOMPRESS_
#include <stdio.h>
#include <zstd.h>
typedef struct zstd_stream zstdStrm;
struct zstd_stream {
int back;
size_t o_len;
size_t o_pos;
size_t i_len;
size_t i_pos;
void *i_buf;
void *o_buf;
ZSTD_DCtx *strm;
FILE *fp;
};
zstdStrm *initDStream(zstdStrm *s);
zstdStrm *zstdOpen(const char *fn);
zstdStrm *zstdFdOpen(int fd);
int zstdDecompress(zstdStrm *s);
int zstdRead(zstdStrm *s, void *buf, size_t len);
int zstdUngetc(int c, zstdStrm *s);
int zstdGetc(zstdStrm *s);
int zstdClose(zstdStrm *s);
int zstdRewind(zstdStrm *s);
#endif // end _ZSTD_DECOMPRESS_
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