Move command line processing stuff out of compressor code

This commit moves stuff like printing help text, command line option
processing and enumerating available processors on stdout out of
the generic compressor code.

The option string is replaced with a structure that directly exposese
the tweakable parameters for all compressors. A function for parsing
the command line arguments into this structure is added in sqfshelper.

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 5 insertions, 20 deletions

diff --git a/lib/sqfs/comp/internal.h b/lib/sqfs/comp/internal.h
index 19ef5cd..229772f 100644
--- a/lib/sqfs/comp/internal.h
+++ b/lib/sqfs/comp/internal.h
@@ -16,29 +16,14 @@ int generic_write_options(int fd, const void *data, size_t size);
 
 int generic_read_options(int fd, void *data, size_t size);
 
-compressor_t *create_xz_compressor(bool compress, size_t block_size,
-				   char *options);
+compressor_t *create_xz_compressor(const compressor_config_t *cfg);
 
-compressor_t *create_gzip_compressor(bool compress, size_t block_size,
-				     char *options);
+compressor_t *create_gzip_compressor(const compressor_config_t *cfg);
 
-compressor_t *create_lzo_compressor(bool compress, size_t block_size,
-				    char *options);
+compressor_t *create_lzo_compressor(const compressor_config_t *cfg);
 
-compressor_t *create_lz4_compressor(bool compress, size_t block_size,
-				    char *options);
+compressor_t *create_lz4_compressor(const compressor_config_t *cfg);
 
-compressor_t *create_zstd_compressor(bool compress, size_t block_size,
-				     char *options);
-
-void compressor_xz_print_help(void);
-
-void compressor_gzip_print_help(void);
-
-void compressor_lzo_print_help(void);
-
-void compressor_lz4_print_help(void);
-
-void compressor_zstd_print_help(void);
+compressor_t *create_zstd_compressor(const compressor_config_t *cfg);
 
 #endif /* INTERNAL_H */