1 /* 2 * QEMU migration blockers 3 * 4 * Copyright IBM, Corp. 2008 5 * 6 * Authors: 7 * Anthony Liguori <aliguori@us.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2. See 10 * the COPYING file in the top-level directory. 11 * 12 */ 13 14 #ifndef MIGRATION_BLOCKER_H 15 #define MIGRATION_BLOCKER_H 16 17 /** 18 * @migrate_add_blocker - prevent migration from proceeding 19 * 20 * @reason - an error to be returned whenever migration is attempted 21 * 22 * @errp - [out] The reason (if any) we cannot block migration right now. 23 * 24 * @returns - 0 on success, -EBUSY/-EACCES on failure, with errp set. 25 */ 26 int migrate_add_blocker(Error *reason, Error **errp); 27 28 /** 29 * @migrate_del_blocker - remove a blocking error from migration 30 * 31 * @reason - the error blocking migration 32 */ 33 void migrate_del_blocker(Error *reason); 34 35 #endif 36