1 files changed, 102 insertions, 0 deletions
diff --git a/storage/innobase/include/trx0rec.inl b/storage/innobase/include/trx0rec.inl
new file mode 100644
index 00000000000..ecae142d8f5
--- /dev/null
+++ b/storage/innobase/include/trx0rec.inl
@@ -0,0 +1,102 @@
+/*****************************************************************************
+
+Copyright (c) 1996, 2014, Oracle and/or its affiliates. All Rights Reserved.
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; version 2 of the License.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
+
+*****************************************************************************/
+
+/**************************************************//**
+@file include/trx0rec.ic
+Transaction undo log record
+
+Created 3/26/1996 Heikki Tuuri
+*******************************************************/
+
+/**********************************************************************//**
+Reads from an undo log record the record type.
+@return record type */
+UNIV_INLINE
+ulint
+trx_undo_rec_get_type(
+/*==================*/
+	const trx_undo_rec_t*	undo_rec)	/*!< in: undo log record */
+{
+	return(mach_read_from_1(undo_rec + 2) & (TRX_UNDO_CMPL_INFO_MULT - 1));
+}
+
+/**********************************************************************//**
+Reads from an undo log record the record compiler info.
+@return compiler info */
+UNIV_INLINE
+ulint
+trx_undo_rec_get_cmpl_info(
+/*=======================*/
+	const trx_undo_rec_t*	undo_rec)	/*!< in: undo log record */
+{
+	return(mach_read_from_1(undo_rec + 2) / TRX_UNDO_CMPL_INFO_MULT);
+}
+
+/**********************************************************************//**
+Returns TRUE if an undo log record contains an extern storage field.
+@return TRUE if extern */
+UNIV_INLINE
+ibool
+trx_undo_rec_get_extern_storage(
+/*============================*/
+	const trx_undo_rec_t*	undo_rec)	/*!< in: undo log record */
+{
+	if (mach_read_from_1(undo_rec + 2) & TRX_UNDO_UPD_EXTERN) {
+
+		return(TRUE);
+	}
+
+	return(FALSE);
+}
+
+/**********************************************************************//**
+Reads the undo log record number.
+@return undo no */
+UNIV_INLINE
+undo_no_t
+trx_undo_rec_get_undo_no(
+/*=====================*/
+	const trx_undo_rec_t*	undo_rec)	/*!< in: undo log record */
+{
+	const byte*	ptr;
+
+	ptr = undo_rec + 3;
+
+	return(mach_u64_read_much_compressed(ptr));
+}
+
+/***********************************************************************//**
+Copies the undo record to the heap.
+@return own: copy of undo log record */
+UNIV_INLINE
+trx_undo_rec_t*
+trx_undo_rec_copy(
+/*==============*/
+	const trx_undo_rec_t*	undo_rec,	/*!< in: undo log record */
+	mem_heap_t*		heap)		/*!< in: heap where copied */
+{
+	ulint		len;
+
+	len = mach_read_from_2(undo_rec)
+		- ut_align_offset(undo_rec, UNIV_PAGE_SIZE);
+	ut_ad(len < UNIV_PAGE_SIZE);
+	trx_undo_rec_t* rec = static_cast<trx_undo_rec_t*>(
+		mem_heap_dup(heap, undo_rec, len));
+	mach_write_to_2(rec, len);
+	return rec;
+}