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Adjusting locks for concurrency issue (not found, but suspect).

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brian@piggy.tangent.org
2007-03-26 16:45:17 -07:00
parent ff9da1f048
commit 414da94c04
1 changed files with 3 additions and 3 deletions
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6
storage/archive/ha_archive.cc
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@@ -1003,7 +1003,6 @@ int ha_archive::rnd_init(bool scan)
/* We rewind the file so that we can read from the beginning if scan */
if (scan)
{
scan_rows= share->rows_recorded;
DBUG_PRINT("info", ("archive will retrieve %llu rows",
(unsigned long long) scan_rows));
stats.records= 0;
@@ -1012,17 +1011,18 @@ int ha_archive::rnd_init(bool scan)
If dirty, we lock, and then reset/flush the data.
I found that just calling azflush() doesn't always work.
*/
pthread_mutex_lock(&share->mutex);
scan_rows= share->rows_recorded;
if (share->dirty == TRUE)
{
pthread_mutex_lock(&share->mutex);
if (share->dirty == TRUE)
{
DBUG_PRINT("ha_archive", ("archive flushing out rows for scan"));
azflush(&(share->archive_write), Z_SYNC_FLUSH);
share->dirty= FALSE;
}
pthread_mutex_unlock(&share->mutex);
}
pthread_mutex_unlock(&share->mutex);
if (read_data_header(&archive))
DBUG_RETURN(HA_ERR_CRASHED_ON_USAGE);