log0log.h
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上传日期:2007-04-14
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文件大小:26k
- /******************************************************
- Database log
- (c) 1995 Innobase Oy
- Created 12/9/1995 Heikki Tuuri
- *******************************************************/
- #ifndef log0log_h
- #define log0log_h
- #include "univ.i"
- #include "ut0byte.h"
- #include "sync0sync.h"
- #include "sync0rw.h"
- typedef struct log_struct log_t;
- typedef struct log_group_struct log_group_t;
- extern ibool log_do_write;
- extern ibool log_debug_writes;
- /* Wait modes for log_flush_up_to */
- #define LOG_NO_WAIT 91
- #define LOG_WAIT_ONE_GROUP 92
- #define LOG_WAIT_ALL_GROUPS 93
- #define LOG_MAX_N_GROUPS 32
- /****************************************************************
- Writes to the log the string given. The log must be released with
- log_release. */
- UNIV_INLINE
- dulint
- log_reserve_and_write_fast(
- /*=======================*/
- /* out: end lsn of the log record, ut_dulint_zero if
- did not succeed */
- byte* str, /* in: string */
- ulint len, /* in: string length */
- dulint* start_lsn,/* out: start lsn of the log record */
- ibool* success);/* out: TRUE if success */
- /***************************************************************************
- Releases the log mutex. */
- UNIV_INLINE
- void
- log_release(void);
- /*=============*/
- /***************************************************************************
- Checks if there is need for a log buffer flush or a new checkpoint, and does
- this if yes. Any database operation should call this when it has modified
- more than about 4 pages. NOTE that this function may only be called when the
- OS thread owns no synchronization objects except the dictionary mutex. */
- UNIV_INLINE
- void
- log_free_check(void);
- /*================*/
- /****************************************************************
- Opens the log for log_write_low. The log must be closed with log_close and
- released with log_release. */
- dulint
- log_reserve_and_open(
- /*=================*/
- /* out: start lsn of the log record */
- ulint len); /* in: length of data to be catenated */
- /****************************************************************
- Writes to the log the string given. It is assumed that the caller holds the
- log mutex. */
- void
- log_write_low(
- /*==========*/
- byte* str, /* in: string */
- ulint str_len); /* in: string length */
- /****************************************************************
- Closes the log. */
- dulint
- log_close(void);
- /*===========*/
- /* out: lsn */
- /****************************************************************
- Gets the current lsn. */
- UNIV_INLINE
- dulint
- log_get_lsn(void);
- /*=============*/
- /* out: current lsn */
- /****************************************************************************
- Gets the online backup lsn. */
- UNIV_INLINE
- dulint
- log_get_online_backup_lsn_low(void);
- /*===============================*/
- /****************************************************************************
- Gets the online backup state. */
- UNIV_INLINE
- ibool
- log_get_online_backup_state_low(void);
- /*=================================*/
- /* out: online backup state, the caller must
- own the log_sys mutex */
- /**********************************************************
- Initializes the log. */
- void
- log_init(void);
- /*==========*/
- /**********************************************************************
- Inits a log group to the log system. */
- void
- log_group_init(
- /*===========*/
- ulint id, /* in: group id */
- ulint n_files, /* in: number of log files */
- ulint file_size, /* in: log file size in bytes */
- ulint space_id, /* in: space id of the file space
- which contains the log files of this
- group */
- ulint archive_space_id); /* in: space id of the file space
- which contains some archived log
- files for this group; currently, only
- for the first log group this is
- used */
- /**********************************************************
- Completes an i/o to a log file. */
- void
- log_io_complete(
- /*============*/
- log_group_t* group); /* in: log group */
- /**********************************************************
- This function is called, e.g., when a transaction wants to commit. It checks
- that the log has been flushed to disk up to the last log entry written by the
- transaction. If there is a flush running, it waits and checks if the flush
- flushed enough. If not, starts a new flush. */
- void
- log_flush_up_to(
- /*============*/
- dulint lsn, /* in: log sequence number up to which the log should
- be flushed, ut_dulint_max if not specified */
- ulint wait); /* in: LOG_NO_WAIT, LOG_WAIT_ONE_GROUP,
- or LOG_WAIT_ALL_GROUPS */
- /********************************************************************
- Advances the smallest lsn for which there are unflushed dirty blocks in the
- buffer pool and also may make a new checkpoint. NOTE: this function may only
- be called if the calling thread owns no synchronization objects! */
- ibool
- log_preflush_pool_modified_pages(
- /*=============================*/
- /* out: FALSE if there was a flush batch of
- the same type running, which means that we
- could not start this flush batch */
- dulint new_oldest, /* in: try to advance oldest_modified_lsn
- at least to this lsn */
- ibool sync); /* in: TRUE if synchronous operation is
- desired */
- /**********************************************************
- Makes a checkpoint. Note that this function does not flush dirty
- blocks from the buffer pool: it only checks what is lsn of the oldest
- modification in the pool, and writes information about the lsn in
- log files. Use log_make_checkpoint_at to flush also the pool. */
- ibool
- log_checkpoint(
- /*===========*/
- /* out: TRUE if success, FALSE if a checkpoint
- write was already running */
- ibool sync, /* in: TRUE if synchronous operation is
- desired */
- ibool write_always); /* in: the function normally checks if the
- the new checkpoint would have a greater
- lsn than the previous one: if not, then no
- physical write is done; by setting this
- parameter TRUE, a physical write will always be
- made to log files */
- /********************************************************************
- Makes a checkpoint at a given lsn or later. */
- void
- log_make_checkpoint_at(
- /*===================*/
- dulint lsn, /* in: make a checkpoint at this or a later
- lsn, if ut_dulint_max, makes a checkpoint at
- the latest lsn */
- ibool write_always); /* in: the function normally checks if the
- the new checkpoint would have a greater
- lsn than the previous one: if not, then no
- physical write is done; by setting this
- parameter TRUE, a physical write will always be
- made to log files */
- /********************************************************************
- Makes a checkpoint at the latest lsn and writes it to first page of each
- data file in the database, so that we know that the file spaces contain
- all modifications up to that lsn. This can only be called at database
- shutdown. This function also writes all log in log files to the log archive. */
- void
- logs_empty_and_mark_files_at_shutdown(void);
- /*=======================================*/
- /**********************************************************
- Reads a checkpoint info from a log group header to log_sys->checkpoint_buf. */
- void
- log_group_read_checkpoint_info(
- /*===========================*/
- log_group_t* group, /* in: log group */
- ulint field); /* in: LOG_CHECKPOINT_1 or LOG_CHECKPOINT_2 */
- /***********************************************************************
- Gets info from a checkpoint about a log group. */
- void
- log_checkpoint_get_nth_group_info(
- /*==============================*/
- byte* buf, /* in: buffer containing checkpoint info */
- ulint n, /* in: nth slot */
- ulint* file_no,/* out: archived file number */
- ulint* offset);/* out: archived file offset */
- /**********************************************************
- Writes checkpoint info to groups. */
- void
- log_groups_write_checkpoint_info(void);
- /*==================================*/
- /************************************************************************
- Starts an archiving operation. */
- ibool
- log_archive_do(
- /*===========*/
- /* out: TRUE if succeed, FALSE if an archiving
- operation was already running */
- ibool sync, /* in: TRUE if synchronous operation is desired */
- ulint* n_bytes);/* out: archive log buffer size, 0 if nothing to
- archive */
- /********************************************************************
- Writes the log contents to the archive up to the lsn when this function was
- called, and stops the archiving. When archiving is started again, the archived
- log file numbers start from a number one higher, so that the archiving will
- not write again to the archived log files which exist when this function
- returns. */
- ulint
- log_archive_stop(void);
- /*==================*/
- /* out: DB_SUCCESS or DB_ERROR */
- /********************************************************************
- Starts again archiving which has been stopped. */
- ulint
- log_archive_start(void);
- /*===================*/
- /* out: DB_SUCCESS or DB_ERROR */
- /********************************************************************
- Stop archiving the log so that a gap may occur in the archived log files. */
- ulint
- log_archive_noarchivelog(void);
- /*==========================*/
- /* out: DB_SUCCESS or DB_ERROR */
- /********************************************************************
- Start archiving the log so that a gap may occur in the archived log files. */
- ulint
- log_archive_archivelog(void);
- /*========================*/
- /* out: DB_SUCCESS or DB_ERROR */
- /**********************************************************
- Generates an archived log file name. */
- void
- log_archived_file_name_gen(
- /*=======================*/
- char* buf, /* in: buffer where to write */
- ulint id, /* in: group id */
- ulint file_no);/* in: file number */
- /**********************************************************
- Switches the database to the online backup state. */
- ulint
- log_switch_backup_state_on(void);
- /*============================*/
- /* out: DB_SUCCESS or DB_ERROR */
- /**********************************************************
- Switches the online backup state off. */
- ulint
- log_switch_backup_state_off(void);
- /*=============================*/
- /* out: DB_SUCCESS or DB_ERROR */
- /************************************************************************
- Checks that there is enough free space in the log to start a new query step.
- Flushes the log buffer or makes a new checkpoint if necessary. NOTE: this
- function may only be called if the calling thread owns no synchronization
- objects! */
- void
- log_check_margins(void);
- /*===================*/
- /**********************************************************
- Reads a specified log segment to a buffer. */
- void
- log_group_read_log_seg(
- /*===================*/
- ulint type, /* in: LOG_ARCHIVE or LOG_RECOVER */
- byte* buf, /* in: buffer where to read */
- log_group_t* group, /* in: log group */
- dulint start_lsn, /* in: read area start */
- dulint end_lsn); /* in: read area end */
- /**********************************************************
- Writes a buffer to a log file group. */
- void
- log_group_write_buf(
- /*================*/
- ulint type, /* in: LOG_FLUSH or LOG_RECOVER */
- log_group_t* group, /* in: log group */
- byte* buf, /* in: buffer */
- ulint len, /* in: buffer len; must be divisible
- by OS_FILE_LOG_BLOCK_SIZE */
- dulint start_lsn, /* in: start lsn of the buffer; must
- be divisible by
- OS_FILE_LOG_BLOCK_SIZE */
- ulint new_data_offset);/* in: start offset of new data in
- buf: this parameter is used to decide
- if we have to write a new log file
- header */
- /************************************************************
- Sets the field values in group to correspond to a given lsn. For this function
- to work, the values must already be correctly initialized to correspond to
- some lsn, for instance, a checkpoint lsn. */
- void
- log_group_set_fields(
- /*=================*/
- log_group_t* group, /* in: group */
- dulint lsn); /* in: lsn for which the values should be
- set */
- /**********************************************************
- Calculates the data capacity of a log group, when the log file headers are not
- included. */
- ulint
- log_group_get_capacity(
- /*===================*/
- /* out: capacity in bytes */
- log_group_t* group); /* in: log group */
- /****************************************************************
- Gets a log block flush bit. */
- UNIV_INLINE
- ibool
- log_block_get_flush_bit(
- /*====================*/
- /* out: TRUE if this block was the first
- to be written in a log flush */
- byte* log_block); /* in: log block */
- /****************************************************************
- Gets a log block number stored in the header. */
- UNIV_INLINE
- ulint
- log_block_get_hdr_no(
- /*=================*/
- /* out: log block number stored in the block
- header */
- byte* log_block); /* in: log block */
- /****************************************************************
- Gets a log block data length. */
- UNIV_INLINE
- ulint
- log_block_get_data_len(
- /*===================*/
- /* out: log block data length measured as a
- byte offset from the block start */
- byte* log_block); /* in: log block */
- /****************************************************************
- Sets the log block data length. */
- UNIV_INLINE
- void
- log_block_set_data_len(
- /*===================*/
- byte* log_block, /* in: log block */
- ulint len); /* in: data length */
- /****************************************************************
- Gets a log block number stored in the trailer. */
- UNIV_INLINE
- ulint
- log_block_get_trl_no(
- /*=================*/
- /* out: log block number stored in the block
- trailer */
- byte* log_block); /* in: log block */
- /****************************************************************
- Gets a log block first mtr log record group offset. */
- UNIV_INLINE
- ulint
- log_block_get_first_rec_group(
- /*==========================*/
- /* out: first mtr log record group byte offset
- from the block start, 0 if none */
- byte* log_block); /* in: log block */
- /****************************************************************
- Sets the log block first mtr log record group offset. */
- UNIV_INLINE
- void
- log_block_set_first_rec_group(
- /*==========================*/
- byte* log_block, /* in: log block */
- ulint offset); /* in: offset, 0 if none */
- /****************************************************************
- Gets a log block checkpoint number field (4 lowest bytes). */
- UNIV_INLINE
- ulint
- log_block_get_checkpoint_no(
- /*========================*/
- /* out: checkpoint no (4 lowest bytes) */
- byte* log_block); /* in: log block */
- /****************************************************************
- Initializes a log block in the log buffer. */
- UNIV_INLINE
- void
- log_block_init(
- /*===========*/
- byte* log_block, /* in: pointer to the log buffer */
- dulint lsn); /* in: lsn within the log block */
- /****************************************************************
- Converts a lsn to a log block number. */
- UNIV_INLINE
- ulint
- log_block_convert_lsn_to_no(
- /*========================*/
- /* out: log block number, it is > 0 and <= 1G */
- dulint lsn); /* in: lsn of a byte within the block */
- /**********************************************************
- Prints info of the log. */
- void
- log_print(void);
- /*===========*/
- extern log_t* log_sys;
- /* Values used as flags */
- #define LOG_FLUSH 7652559
- #define LOG_CHECKPOINT 78656949
- #define LOG_ARCHIVE 11122331
- #define LOG_RECOVER 98887331
- /* The counting of lsn's starts from this value: this must be non-zero */
- #define LOG_START_LSN ut_dulint_create(0, 16 * OS_FILE_LOG_BLOCK_SIZE)
- #define LOG_BUFFER_SIZE (srv_log_buffer_size * UNIV_PAGE_SIZE)
- #define LOG_ARCHIVE_BUF_SIZE (srv_log_buffer_size * UNIV_PAGE_SIZE / 4)
- /* Offsets of a log block header */
- #define LOG_BLOCK_HDR_NO 0 /* block number which must be > 0 and
- is allowed to wrap around at 2G; the
- highest bit is set to 1 if this is the
- first log block in a log flush write
- segment */
- #define LOG_BLOCK_FLUSH_BIT_MASK 0x80000000
- /* mask used to get the highest bit in
- the preceding field */
- #define LOG_BLOCK_HDR_DATA_LEN 4 /* number of bytes of log written to
- this block */
- #define LOG_BLOCK_FIRST_REC_GROUP 6 /* offset of the first start of an
- mtr log record group in this log block,
- 0 if none; if the value is the same
- as LOG_BLOCK_HDR_DATA_LEN, it means
- that the first rec group has not yet
- been catenated to this log block, but
- if it will, it will start at this
- offset; an archive recovery can
- start parsing the log records starting
- from this offset in this log block,
- if value not 0 */
- #define LOG_BLOCK_CHECKPOINT_NO 8 /* 4 lower bytes of the value of
- log_sys->next_checkpoint_no when the
- log block was last written to: if the
- block has not yet been written full,
- this value is only updated before a
- log buffer flush */
- #define LOG_BLOCK_HDR_SIZE 12 /* size of the log block header in
- bytes */
- /* Offsets of a log block trailer from the end of the block */
- #define LOG_BLOCK_TRL_NO 4 /* log block number */
- #define LOG_BLOCK_TRL_SIZE 4 /* trailer size in bytes */
- /* Offsets for a checkpoint field */
- #define LOG_CHECKPOINT_NO 0
- #define LOG_CHECKPOINT_LSN 8
- #define LOG_CHECKPOINT_OFFSET 16
- #define LOG_CHECKPOINT_LOG_BUF_SIZE 20
- #define LOG_CHECKPOINT_ARCHIVED_LSN 24
- #define LOG_CHECKPOINT_GROUP_ARRAY 32
- /* For each value < LOG_MAX_N_GROUPS the following 8 bytes: */
- #define LOG_CHECKPOINT_ARCHIVED_FILE_NO 0
- #define LOG_CHECKPOINT_ARCHIVED_OFFSET 4
- #define LOG_CHECKPOINT_ARRAY_END (LOG_CHECKPOINT_GROUP_ARRAY
- + LOG_MAX_N_GROUPS * 8)
- #define LOG_CHECKPOINT_CHECKSUM_1 LOG_CHECKPOINT_ARRAY_END
- #define LOG_CHECKPOINT_CHECKSUM_2 (4 + LOG_CHECKPOINT_ARRAY_END)
- #define LOG_CHECKPOINT_SIZE (8 + LOG_CHECKPOINT_ARRAY_END)
- /* Offsets of a log file header */
- #define LOG_GROUP_ID 0 /* log group number */
- #define LOG_FILE_START_LSN 4 /* lsn of the start of data in this
- log file */
- #define LOG_FILE_NO 12 /* 4-byte archived log file number */
- #define LOG_FILE_ARCH_COMPLETED OS_FILE_LOG_BLOCK_SIZE
- /* this 4-byte field is TRUE when
- the writing of an archived log file
- has been completed */
- #define LOG_FILE_END_LSN (OS_FILE_LOG_BLOCK_SIZE + 4)
- /* lsn where the archived log file
- at least extends: actually the
- archived log file may extend to a
- later lsn, as long as it is within the
- same log block as this lsn; this field
- is defined only when an archived log
- file has been completely written */
- #define LOG_CHECKPOINT_1 OS_FILE_LOG_BLOCK_SIZE
- #define LOG_CHECKPOINT_2 (3 * OS_FILE_LOG_BLOCK_SIZE)
- #define LOG_FILE_HDR_SIZE (4 * OS_FILE_LOG_BLOCK_SIZE)
- #define LOG_GROUP_OK 301
- #define LOG_GROUP_CORRUPTED 302
- /* 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. */
- struct log_group_struct{
- /* The following fields are protected by log_sys->mutex */
- ulint id; /* log group id */
- ulint n_files; /* number of files in the group */
- ulint file_size; /* individual log file size in bytes,
- including the log file header */
- ulint space_id; /* file space which implements the log
- group */
- ulint state; /* LOG_GROUP_OK or
- LOG_GROUP_CORRUPTED */
- dulint lsn; /* lsn used to fix coordinates within
- the log group */
- ulint lsn_offset; /* the offset of the above lsn */
- ulint n_pending_writes;/* number of currently pending flush
- writes for this log group */
- byte** file_header_bufs;/* buffers for each file header in the
- group */
- /*-----------------------------*/
- byte** archive_file_header_bufs;/* buffers for each file
- header in the group */
- ulint archive_space_id;/* file space which implements the log
- group archive */
- ulint archived_file_no;/* file number corresponding to
- log_sys->archived_lsn */
- ulint archived_offset;/* file offset corresponding to
- log_sys->archived_lsn, 0 if we have
- not yet written to the archive file
- number archived_file_no */
- ulint next_archived_file_no;/* during an archive write,
- until the write is completed, we
- store the next value for
- archived_file_no here: the write
- completion function then sets the new
- value to ..._file_no */
- ulint next_archived_offset; /* like the preceding field */
- /*-----------------------------*/
- dulint scanned_lsn; /* used only in recovery: recovery scan
- succeeded up to this lsn in this log
- group */
- byte* checkpoint_buf; /* checkpoint header is written from
- this buffer to the group */
- UT_LIST_NODE_T(log_group_t)
- log_groups; /* list of log groups */
- };
- struct log_struct{
- byte pad[64]; /* padding to prevent other memory
- update hotspots from residing on the
- same memory cache line */
- dulint lsn; /* log sequence number */
- ulint buf_free; /* first free offset within the log
- buffer */
- mutex_t mutex; /* mutex protecting the log */
- byte* buf; /* log buffer */
- ulint buf_size; /* log buffer size in bytes */
- ulint max_buf_free; /* recommended maximum value of
- buf_free, after which the buffer is
- flushed */
- ulint old_buf_free; /* value of buf free when log was
- last time opened; only in the debug
- version */
- dulint old_lsn; /* value of lsn when log was last time
- opened; only in the debug version */
- ibool check_flush_or_checkpoint;
- /* this is set to TRUE when there may
- be need to flush the log buffer, or
- preflush buffer pool pages, or make
- a checkpoint; this MUST be TRUE when
- lsn - last_checkpoint_lsn >
- max_checkpoint_age; this flag is
- peeked at by log_free_check(), which
- does not reserve the log mutex */
- UT_LIST_BASE_NODE_T(log_group_t)
- log_groups; /* log groups */
- /* The fields involved in the log buffer flush */
- ulint buf_next_to_write;/* first offset in the log buffer
- where the byte content may not exist
- written to file, e.g., the start
- offset of a log record catenated
- later; this is advanced when a flush
- operation is completed to all the log
- groups */
- dulint written_to_some_lsn;
- /* first log sequence number not yet
- written to any log group; for this to
- be advanced, it is enough that the
- write i/o has been completed for any
- one log group */
- dulint written_to_all_lsn;
- /* first log sequence number not yet
- written to some log group; for this to
- be advanced, it is enough that the
- write i/o has been completed for all
- log groups */
- dulint flush_lsn; /* end lsn for the current flush */
- ulint flush_end_offset;/* the data in buffer ha been flushed
- up to this offset when the current
- flush ends: this field will then
- be copied to buf_next_to_write */
- ulint n_pending_writes;/* number of currently pending flush
- writes */
- os_event_t no_flush_event; /* this event is in the reset state
- when a flush is running; a thread
- should wait for this without owning
- the log mutex, but NOTE that to set or
- reset this event, the thread MUST own
- the log mutex! */
- ibool one_flushed; /* during a flush, this is first FALSE
- and becomes TRUE when one log group
- has been flushed */
- os_event_t one_flushed_event;/* this event is reset when the
- flush has not yet completed for any
- log group; e.g., this means that a
- transaction has been committed when
- this is set; a thread should wait
- for this without owning the log mutex,
- but NOTE that to set or reset this
- event, the thread MUST own the log
- mutex! */
- ulint n_log_ios; /* number of log i/os initiated thus
- far */
- /* Fields involved in checkpoints */
- ulint max_modified_age_async;
- /* when this recommended value for lsn
- - buf_pool_get_oldest_modification()
- is exceeded, we start an asynchronous
- preflush of pool pages */
- ulint max_modified_age_sync;
- /* when this recommended value for lsn
- - buf_pool_get_oldest_modification()
- is exceeded, we start a synchronous
- preflush of pool pages */
- ulint adm_checkpoint_interval;
- /* administrator-specified checkpoint
- interval in terms of log growth in
- bytes; the interval actually used by
- the database can be smaller */
- ulint max_checkpoint_age_async;
- /* when this checkpoint age is exceeded
- we start an asynchronous writing of a
- new checkpoint */
- ulint max_checkpoint_age;
- /* this is the maximum allowed value
- for lsn - last_checkpoint_lsn when a
- new query step is started */
- dulint next_checkpoint_no;
- /* next checkpoint number */
- dulint last_checkpoint_lsn;
- /* latest checkpoint lsn */
- dulint next_checkpoint_lsn;
- /* next checkpoint lsn */
- ulint n_pending_checkpoint_writes;
- /* number of currently pending
- checkpoint writes */
- rw_lock_t checkpoint_lock;/* this latch is x-locked when a
- checkpoint write is running; a thread
- should wait for this without owning
- the log mutex */
- byte* checkpoint_buf; /* checkpoint header is read to this
- buffer */
- /* Fields involved in archiving */
- ulint archiving_state;/* LOG_ARCH_ON, LOG_ARCH_STOPPING
- LOG_ARCH_STOPPED, LOG_ARCH_OFF */
- dulint archived_lsn; /* archiving has advanced to this lsn */
- ulint max_archived_lsn_age_async;
- /* recommended maximum age of
- archived_lsn, before we start
- asynchronous copying to the archive */
- ulint max_archived_lsn_age;
- /* maximum allowed age for
- archived_lsn */
- dulint next_archived_lsn;/* during an archive write,
- until the write is completed, we
- store the next value for
- archived_lsn here: the write
- completion function then sets the new
- value to archived_lsn */
- ulint archiving_phase;/* LOG_ARCHIVE_READ or
- LOG_ARCHIVE_WRITE */
- ulint n_pending_archive_ios;
- /* number of currently pending reads
- or writes in archiving */
- rw_lock_t archive_lock; /* this latch is x-locked when an
- archive write is running; a thread
- should wait for this without owning
- the log mutex */
- ulint archive_buf_size;/* size of archive_buf */
- byte* archive_buf; /* log segment is written to the
- archive from this buffer */
- os_event_t archiving_on; /* if archiving has been stopped,
- a thread can wait for this event to
- become signaled */
- /* Fields involved in online backups */
- ibool online_backup_state;
- /* TRUE if the database is in the
- online backup state */
- dulint online_backup_lsn;
- /* lsn when the state was changed to
- the online backup state */
- };
- #define LOG_ARCH_ON 71
- #define LOG_ARCH_STOPPING 72
- #define LOG_ARCH_STOPPING2 73
- #define LOG_ARCH_STOPPED 74
- #define LOG_ARCH_OFF 75
- #ifndef UNIV_NONINL
- #include "log0log.ic"
- #endif
- #endif