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Added backup handler calls

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Part of MDEV-5336 Implement LOCK FOR BACKUP

Added support for backup calls in Aria to protect
removal of redo logs.
This commit is contained in:
Monty 2018-10-06 16:49:54 +03:00
commit 1077f320e4
5 changed files with 89 additions and 2 deletions
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26
storage/maria/ma_loghandler.c
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@ -56,6 +56,8 @@ static mysql_cond_t COND_soft_sync;
static MA_SERVICE_THREAD_CONTROL soft_sync_control=
{0, FALSE, FALSE, &LOCK_soft_sync, &COND_soft_sync};
uint log_purge_disabled= 0;
/* transaction log file descriptor */
typedef struct st_translog_file
@ -3620,6 +3622,7 @@ my_bool translog_init_with_table(const char *directory,
translog_syncs= 0;
flush_start= 0;
id_to_share= NULL;
log_purge_disabled= 0;
log_descriptor.directory_fd= -1;
log_descriptor.is_everything_flushed= 1;
@ -8668,7 +8671,7 @@ my_bool translog_purge(TRANSLOG_ADDRESS low)
mysql_rwlock_unlock(&log_descriptor.open_files_lock);
translog_close_log_file(file);
}
if (log_purge_type == TRANSLOG_PURGE_IMMIDIATE)
if (log_purge_type == TRANSLOG_PURGE_IMMIDIATE && ! log_purge_disabled)
{
char path[FN_REFLEN], *file_name;
file_name= translog_filename_by_fileno(i, path);
@ -8721,7 +8724,7 @@ my_bool translog_purge_at_flush()
mysql_mutex_lock(&log_descriptor.purger_lock);
if (unlikely(log_descriptor.min_need_file == 0))
if (unlikely(log_descriptor.min_need_file == 0 || log_purge_disabled))
{
DBUG_PRINT("info", ("No info about min need file => exit"));
mysql_mutex_unlock(&log_descriptor.purger_lock);
@ -9285,3 +9288,22 @@ void dump_page(uchar *buffer, File handler)
}
dump_datapage(buffer, handler);
}
/*
Handle backup calls
*/
void translog_disable_purge()
{
mysql_mutex_lock(&log_descriptor.purger_lock);
log_purge_disabled++;
mysql_mutex_unlock(&log_descriptor.purger_lock);
}
void translog_enable_purge()
{
mysql_mutex_lock(&log_descriptor.purger_lock);
log_purge_disabled--;
mysql_mutex_unlock(&log_descriptor.purger_lock);
}