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43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
#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 "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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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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compressor_stream_t *(*uncompression_stream)(struct compressor_t *cmp);
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} compressor_t;
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void compressor_register(compressor_t *compressor);
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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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#define REGISTER_COMPRESSOR(compressor) \
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static void __attribute__((constructor)) register_##compressor(void) \
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{ \
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compressor_register((compressor_t *)&compressor); \
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}
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#endif /* COMPRESSOR_H */
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