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| author | heikki@hundin.mysql.fi <> | 2003-10-07 17:28:59 +0300 |
|---|---|---|
| committer | heikki@hundin.mysql.fi <> | 2003-10-07 17:28:59 +0300 |
| commit | 6112853cdab2770e92f9cfefdfef9c0a14b71cb7 (patch) | |
| tree | d53a5cc4e9736e149276ba08d53a7dd09a14b4fd /innobase/include/log0log.h | |
| parent | 862ff0ed1c1dad812af60987d7ec1a2706d3772c (diff) | |
| download | mariadb-git-6112853cdab2770e92f9cfefdfef9c0a14b71cb7.tar.gz | |
Many files:
Multiple tablespaces for InnoDB
sql_table.cc:
Tell explicitly that InnoDB should retrieve all columns in CHECKSUM TABLE
sql_update.cc, sql_select.cc, my_base.h:
More descriptive flag name HA_EXTRA_RETRIEVE_ALL_COLS
Diffstat (limited to 'innobase/include/log0log.h')
| -rw-r--r-- | innobase/include/log0log.h | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/innobase/include/log0log.h b/innobase/include/log0log.h index 24ec28a56e6..dc44429d636 100644 --- a/innobase/include/log0log.h +++ b/innobase/include/log0log.h @@ -519,9 +519,9 @@ Peeks the current lsn. */ ibool log_peek_lsn( /*=========*/ - /* out: TRUE if success, FALSE if could not get the - log system mutex */ - dulint* lsn); /* out: if returns TRUE, current lsn is here */ + /* out: TRUE if success, FALSE if could not get the + log system mutex */ + dulint* lsn); /* out: if returns TRUE, current lsn is here */ /************************************************************************** Refreshes the statistics used to print per-second averages. */ @@ -549,7 +549,7 @@ extern log_t* log_sys; 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 +#define LOG_BLOCK_FLUSH_BIT_MASK 0x80000000UL /* 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 @@ -600,12 +600,18 @@ extern log_t* log_sys; #define LOG_CHECKPOINT_CHECKSUM_1 LOG_CHECKPOINT_ARRAY_END #define LOG_CHECKPOINT_CHECKSUM_2 (4 + LOG_CHECKPOINT_ARRAY_END) #define LOG_CHECKPOINT_FSP_FREE_LIMIT (8 + LOG_CHECKPOINT_ARRAY_END) - /* current fsp free limit in the - tablespace, in units of one megabyte */ + /* current fsp free limit in + tablespace 0, in units of one + megabyte; this information is only used + by ibbackup to decide if it can + truncate unused ends of + non-auto-extending data files in space + 0 */ #define LOG_CHECKPOINT_FSP_MAGIC_N (12 + LOG_CHECKPOINT_ARRAY_END) /* this magic number tells if the checkpoint contains the above field: - the field was added to InnoDB-3.23.50 */ + the field was added to + InnoDB-3.23.50 */ #define LOG_CHECKPOINT_SIZE (16 + LOG_CHECKPOINT_ARRAY_END) #define LOG_CHECKPOINT_FSP_MAGIC_N_VAL 1441231243 @@ -794,11 +800,11 @@ struct log_struct{ called */ /* Fields involved in checkpoints */ - ulint log_group_capacity; /* capacity of the log group; if - the checkpoint age exceeds this, it is - a serious error because it is possible - we will then overwrite log and spoil - crash recovery */ + ulint log_group_capacity; /* capacity of the log group; if + the checkpoint age exceeds this, it is + a serious error because it is possible + we will then overwrite log and spoil + crash recovery */ ulint max_modified_age_async; /* when this recommended value for lsn - buf_pool_get_oldest_modification() @@ -840,7 +846,8 @@ struct log_struct{ /* 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 */ + dulint archived_lsn; /* archiving has advanced to this + lsn */ ulint max_archived_lsn_age_async; /* recommended maximum age of archived_lsn, before we start |