MySQL 8.0.31
Source Code Documentation
log0pre_8_0_30.h File Reference

Redo log functions and constants related to redo formats before 8.0.30. More...

#include "log0types.h"

Go to the source code of this file.

Classes

struct  log_pre_8_0_30::Checkpoint_header
 Meta data stored in one of two checkpoint headers. More...
 

Namespaces

namespace  log_pre_8_0_30
 

Functions

os_offset_t log_pre_8_0_30::compute_real_offset_for_lsn (size_t n_files, os_offset_t file_size, lsn_t some_file_lsn, os_offset_t some_file_offset, lsn_t requested_lsn)
 Provides a file offset for the given lsn. More...
 
bool log_pre_8_0_30::checkpoint_header_deserialize (const byte *buf, Checkpoint_header &header)
 Deserializes the log checkpoint header stored in the given buffer. More...
 
std::string log_pre_8_0_30::file_name (Log_file_id file_id)
 Provides name of the log file with the given file id, e.g. More...
 
bool log_pre_8_0_30::files_validate_format (const Log_files_context &files_ctx, const ut::vector< Log_file_id_and_header > &files, Log_format &format)
 Validates that ib_logfile0 exists and has format older than VERSION_8_0_30. More...
 

Variables

constexpr const char *const log_pre_8_0_30::FILE_BASE_NAME = "ib_logfile"
 Prefix of log file name in the old redo format (before 8.0.30). More...
 
constexpr Log_file_id log_pre_8_0_30::FILE_MAX_ID = 99
 Maximum redo log file id in the old format (before 8.0.30). More...
 
constexpr os_offset_t log_pre_8_0_30::FIELD_CHECKPOINT_NO = 0
 Checkpoint number. More...
 
constexpr os_offset_t log_pre_8_0_30::FIELD_CHECKPOINT_LSN = 8
 Checkpoint lsn. More...
 
constexpr os_offset_t log_pre_8_0_30::FIELD_CHECKPOINT_OFFSET = 16
 Offset within the log files, which corresponds to checkpoint lsn. More...
 
constexpr uint32_t log_pre_8_0_30::FIELD_CHECKPOINT_LOG_BUF_SIZE = 24
 Size of the log buffer, when the checkpoint write was started. More...
 

Detailed Description

Redo log functions and constants related to redo formats before 8.0.30.