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-rw-r--r--storage/xtradb/trx/trx0undo.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/storage/xtradb/trx/trx0undo.c b/storage/xtradb/trx/trx0undo.c
index 9ed83b5d5c1..ec1cd2d2c43 100644
--- a/storage/xtradb/trx/trx0undo.c
+++ b/storage/xtradb/trx/trx0undo.c
@@ -36,6 +36,7 @@ Created 3/26/1996 Heikki Tuuri
#include "trx0rseg.h"
#include "trx0trx.h"
#include "srv0srv.h"
+#include "srv0start.h"
#include "trx0rec.h"
#include "trx0purge.h"
@@ -2014,4 +2015,28 @@ trx_undo_insert_cleanup(
mutex_exit(&(rseg->mutex));
}
+
+/********************************************************************//**
+At shutdown, frees the undo logs of a PREPARED transaction. */
+UNIV_INTERN
+void
+trx_undo_free_prepared(
+/*===================*/
+ trx_t* trx) /*!< in/out: PREPARED transaction */
+{
+ ut_ad(srv_shutdown_state == SRV_SHUTDOWN_EXIT_THREADS);
+
+ if (trx->update_undo) {
+ ut_a(trx->update_undo->state == TRX_UNDO_PREPARED);
+ UT_LIST_REMOVE(undo_list, trx->rseg->update_undo_list,
+ trx->update_undo);
+ trx_undo_mem_free(trx->update_undo);
+ }
+ if (trx->insert_undo) {
+ ut_a(trx->insert_undo->state == TRX_UNDO_PREPARED);
+ UT_LIST_REMOVE(undo_list, trx->rseg->insert_undo_list,
+ trx->insert_undo);
+ trx_undo_mem_free(trx->insert_undo);
+ }
+}
#endif /* !UNIV_HOTBACKUP */