#include <log0log.h>
Collaboration diagram for log_group_t:
Data Fields | |
| ulint | id |
| ulint | n_files |
| lsn_t | file_size |
| ulint | space_id |
| ulint | state |
| lsn_t | lsn |
| lsn_t | lsn_offset |
| ulint | n_pending_writes |
| byte ** | file_header_bufs_ptr |
| byte ** | file_header_bufs |
| lsn_t | scanned_lsn |
| byte * | checkpoint_buf_ptr |
| byte * | checkpoint_buf |
| ut_list_node< log_group_t > | log_groups |
Detailed Description
Log group consists of a number of log files, each of the same size; a log
group is implemented as a space in the sense of the module fil0fil.
Field Documentation
| byte* log_group_t::checkpoint_buf |
checkpoint header is written from this buffer to the group
| byte* log_group_t::checkpoint_buf_ptr |
unaligned checkpoint header
| byte** log_group_t::file_header_bufs |
buffers for each file header in the group
| byte** log_group_t::file_header_bufs_ptr |
unaligned buffers
| lsn_t log_group_t::file_size |
individual log file size in bytes, including the log file header
| ulint log_group_t::id |
log group id
| ut_list_node< log_group_t > log_group_t::log_groups |
list of log groups
| lsn_t log_group_t::lsn |
lsn used to fix coordinates within the log group
| lsn_t log_group_t::lsn_offset |
the offset of the above lsn
| ulint log_group_t::n_files |
number of files in the group
| ulint log_group_t::n_pending_writes |
number of currently pending flush writes for this log group
| lsn_t log_group_t::scanned_lsn |
used only in recovery: recovery scan succeeded up to this lsn in this log group
| ulint log_group_t::space_id |
file space which implements the log group
| ulint log_group_t::state |
LOG_GROUP_OK or LOG_GROUP_CORRUPTED
The documentation for this struct was generated from the following file:
- include/log0log.h
