| /* |
| * 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 |
