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https://github.com/pygos/pkg-utils.git
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David Oberhollenzer
214a5e917e
Currently only used by lzma compressor to set the dictionary size. Signed-off-by: David Oberhollenzer <goliath@infraroot.at>
42 lines
1 KiB
C
42 lines
1 KiB
C
/* SPDX-License-Identifier: ISC */
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#ifndef COMPRESSOR_H
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#define COMPRESSOR_H
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#include <stddef.h>
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#include <sys/types.h>
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#include "pkg/pkgformat.h"
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typedef struct compressor_stream_t {
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ssize_t (*write)(struct compressor_stream_t *stream, const uint8_t *in,
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size_t size);
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ssize_t (*read)(struct compressor_stream_t *stream, uint8_t *out,
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size_t size);
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void (*flush)(struct compressor_stream_t *stream);
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ssize_t (*do_block)(struct compressor_stream_t *stream,
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const uint8_t *in, uint8_t *out,
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size_t insize, size_t outsize);
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void (*destroy)(struct compressor_stream_t *stream);
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} compressor_stream_t;
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typedef struct compressor_t {
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struct compressor_t *next;
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const char *name;
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PKG_COMPRESSION id;
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compressor_stream_t *(*compression_stream)(struct compressor_t *cmp,
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void *options);
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compressor_stream_t *(*uncompression_stream)(struct compressor_t *cmp);
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} compressor_t;
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compressor_t *compressor_by_name(const char *name);
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compressor_t *compressor_by_id(PKG_COMPRESSION id);
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#endif /* COMPRESSOR_H */
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