Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 74 insertions, 0 deletions

diff --git a/storage/innobase/include/fut0fut.h b/storage/innobase/include/fut0fut.h
new file mode 100644
index 00000000..a52fc256
--- /dev/null
+++ b/storage/innobase/include/fut0fut.h
@@ -0,0 +1,74 @@
+/*****************************************************************************
+
+Copyright (c) 1995, 2016, Oracle and/or its affiliates. All Rights Reserved.
+Copyright (c) 2019, MariaDB Corporation.
+
+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/fut0fut.h
+File-based utilities
+
+Created 12/13/1995 Heikki Tuuri
+***********************************************************************/
+
+
+#ifndef fut0fut_h
+#define fut0fut_h
+
+#include "mtr0mtr.h"
+
+/** Gets a pointer to a file address and latches the page.
+@param[in]	space		space id
+@param[in]	zip_size	ROW_FORMAT=COMPRESSED page size, or 0
+@param[in]	addr		file address
+@param[in]	rw_latch	RW_S_LATCH, RW_X_LATCH, RW_SX_LATCH
+@param[out]	ptr_block	file page
+@param[in,out]	mtr		mini-transaction
+@return pointer to a byte in (*ptr_block)->frame; the *ptr_block is
+bufferfixed and latched */
+UNIV_INLINE
+byte*
+fut_get_ptr(
+	ulint			space,
+	ulint			zip_size,
+	fil_addr_t		addr,
+	rw_lock_type_t		rw_latch,
+	mtr_t*			mtr,
+	buf_block_t**		ptr_block = NULL)
+{
+	buf_block_t*	block;
+	byte*		ptr = NULL;
+
+	ut_ad(addr.boffset < srv_page_size);
+	ut_ad((rw_latch == RW_S_LATCH)
+	      || (rw_latch == RW_X_LATCH)
+	      || (rw_latch == RW_SX_LATCH));
+
+	block = buf_page_get(page_id_t(space, addr.page), zip_size,
+			     rw_latch, mtr);
+
+	ptr = buf_block_get_frame(block) + addr.boffset;
+
+	buf_block_dbg_add_level(block, SYNC_NO_ORDER_CHECK);
+
+	if (ptr_block != NULL) {
+		*ptr_block = block;
+	}
+
+	return(ptr);
+}
+
+#endif /* fut0fut_h */