| /* | |
| * QEMU migration blockers | |
| * | |
| * Copyright IBM, Corp. 2008 | |
| * | |
| * Authors: | |
| * Anthony Liguori <aliguori@us.ibm.com> | |
| * | |
| * This work is licensed under the terms of the GNU GPL, version 2. See | |
| * the COPYING file in the top-level directory. | |
| * | |
| */ | |
| #ifndef MIGRATION_BLOCKER_H | |
| #define MIGRATION_BLOCKER_H | |
| /** | |
| * @migrate_add_blocker - prevent migration from proceeding | |
| * | |
| * @reason - an error to be returned whenever migration is attempted | |
| * | |
| * @errp - [out] The reason (if any) we cannot block migration right now. | |
| * | |
| * @returns - 0 on success, -EBUSY/-EACCES on failure, with errp set. | |
| */ | |
| int migrate_add_blocker(Error *reason, Error **errp); | |
| /** | |
| * @migrate_add_blocker_internal - prevent migration from proceeding without | |
| * only-migrate implications | |
| * | |
| * @reason - an error to be returned whenever migration is attempted | |
| * | |
| * @errp - [out] The reason (if any) we cannot block migration right now. | |
| * | |
| * @returns - 0 on success, -EBUSY on failure, with errp set. | |
| * | |
| * Some of the migration blockers can be temporary (e.g., for a few seconds), | |
| * so it shouldn't need to conflict with "-only-migratable". For those cases, | |
| * we can call this function rather than @migrate_add_blocker(). | |
| */ | |
| int migrate_add_blocker_internal(Error *reason, Error **errp); | |
| /** | |
| * @migrate_del_blocker - remove a blocking error from migration | |
| * | |
| * @reason - the error blocking migration | |
| */ | |
| void migrate_del_blocker(Error *reason); | |
| #endif |