log0pre_8_0_30.h

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/**************************************************/ /**
 @file include/log0pre_8_0_30.h
 
 Redo log functions and constants related to redo formats
 before 8.0.30.
 
 *******************************************************/
 
#ifndef log0pre_8_0_30_h
#define log0pre_8_0_30_h
 
/* lsn_t */
#include "log0types.h"
 
namespace log_pre_8_0_30 {
 
/** Prefix of log file name in the old redo format (before 8.0.30).
For more details @see Log_files_ruleset */
constexpr const char *const FILE_BASE_NAME = "ib_logfile";
 
/** Maximum redo log file id in the old format (before 8.0.30). */
constexpr Log_file_id FILE_MAX_ID = 99;
 
/** Provides name of the log file with the given file id, e.g. 'ib_logfile0'.
@param[in]  file_id   id of the log file
@return file name */
std::string file_name(Log_file_id file_id);
 
/** Validates that ib_logfile0 exists and has format older than VERSION_8_0_30.
@param[in]  files_ctx  defines context within which redo log files exist
@param[in]  files      non-empty list of file headers of existing log
                       files, ordered by file_id
@param[out] format     discovered redo format if true was returned
@return true iff ib_logfile0 exists and has format older than VERSION_8_0_30 */
bool files_validate_format(const Log_files_context &files_ctx,
                           const ut::vector<Log_file_id_and_header> &files,
                           Log_format &format);
 
}  // namespace log_pre_8_0_30
 
#endif /* log0pre_8_0_30_h */