wimlib.net Git - wimlib/blob - include/wimlib/compressor_ops.h

   1 /*
   2  * compressor_ops.h
   3  *
   4  * Interface implemented by compressors for specific formats.
   5  */
   6
   7 #ifndef _WIMLIB_COMPRESSOR_OPS_H
   8 #define _WIMLIB_COMPRESSOR_OPS_H
   9
  10 #include <wimlib/types.h>
  11
  12 struct wimlib_compressor_params_header;
  13
  14 struct compressor_ops {
  15
  16         bool (*params_valid)(const struct wimlib_compressor_params_header *params);
  17
  18         u64 (*get_needed_memory)(size_t max_block_size,
  19                                  const struct wimlib_compressor_params_header *params);
  20
  21         int (*create_compressor)(size_t max_block_size,
  22                                  const struct wimlib_compressor_params_header *params,
  23                                  void **private_ret);
  24
  25         size_t (*compress)(const void *uncompressed_data,
  26                            size_t uncompressed_size,
  27                            void *compressed_data,
  28                            size_t compressed_size_avail,
  29                            void *private);
  30
  31         void (*free_compressor)(void *private);
  32 };
  33
  34 extern const struct compressor_ops lzx_compressor_ops;
  35 extern const struct compressor_ops xpress_compressor_ops;
  36 extern const struct compressor_ops lzms_compressor_ops;
  37
  38 extern void
  39 cleanup_compressor_params(void);
  40
  41 #endif /* _WIMLIB_COMPRESSOR_OPS_H */