#include "compression.h"
#include "my_dbug.h"
#include "my_sys.h"
#include "mysql/strings/m_ctype.h"
#include "mysqld_error.h"

Functions
enum_compression_algorithm	get_compression_algorithm (const std::string &name)
	This function is used to validate compression algorithm specified as part of change replication source to statement. More...

void	parse_compression_algorithms_list (const std::string &name, std::vector< std::string > &list)
	This function is used to parse comma separated list of compression algorithm names and return a list containing every algorithm name. More...

bool	is_zstd_compression_level_valid (uint level)
	This function is used to validate compression level for zstd compression. More...

bool	validate_compression_attributes (const std::string &algorithm_names, const std::string &channel_name, bool ignore_errors)
	This function is used to validate compression algorithm names and maximum names is not more than 3. More...

Function Documentation

◆ get_compression_algorithm()

enum_compression_algorithm get_compression_algorithm ( const std::string & name )

This function is used to validate compression algorithm specified as part of change replication source to statement.

Parameters

name	compression algorithm name. Name can be either zlib,zstd or empty string.

Return values

an	enum to represents what algorithm is specified in case it is a valid algorithm else return INVALID.

bool is_zstd_compression_level_valid ( uint level )

This function is used to validate compression level for zstd compression.

Parameters

level compression level to be validated against compression name

Return values

false	if level is not valid.
true	if level is valid.

void parse_compression_algorithms_list	(	const std::string &	name,
		std::vector< std::string > &	list
	)

This function is used to parse comma separated list of compression algorithm names and return a list containing every algorithm name.

Parameters

	name	comma separated list of compression algorithm names
[out]	list	list containing algorithm names

bool validate_compression_attributes	(	const std::string &	algorithm_names,
		const std::string &	channel_name,
		bool	ignore_errors
	)

This function is used to validate compression algorithm names and maximum names is not more than 3.

Parameters

algorithm_names	list of compression algorithm names.
channel_name	Replication channel name.
ignore_errors	If set to false, report errors to the client, otherwise do not report errors"

Return values

0	success
1	error or warnings