From 06eaf7232e9a920468c0f8d74dcf2fe8b555501c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 13 Apr 2024 14:24:36 +0200 Subject: Adding upstream version 1:10.11.6. Signed-off-by: Daniel Baumann --- storage/myisammrg/myrg_locking.c | 45 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 storage/myisammrg/myrg_locking.c (limited to 'storage/myisammrg/myrg_locking.c') diff --git a/storage/myisammrg/myrg_locking.c b/storage/myisammrg/myrg_locking.c new file mode 100644 index 00000000..a79e35d2 --- /dev/null +++ b/storage/myisammrg/myrg_locking.c @@ -0,0 +1,45 @@ +/* Copyright (c) 2000-2002, 2005-2007 MySQL AB + Use is subject to license terms + + 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 */ + +/* + Lock databases against read or write. +*/ + +#include "myrg_def.h" + +int myrg_lock_database(MYRG_INFO *info, int lock_type) +{ + int error,new_error; + MYRG_TABLE *file; + + error=0; + for (file=info->open_tables ; file != info->end_table ; file++) + { + DBUG_ASSERT(file->table->open_flag & HA_OPEN_MERGE_TABLE); + + if ((new_error=mi_lock_database(file->table,lock_type))) + { + error=new_error; + if (lock_type != F_UNLCK) + { + while (--file >= info->open_tables) + mi_lock_database(file->table, F_UNLCK); + break; + } + } + } + return(error); +} -- cgit v1.2.3