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Diffstat (limited to 'include/migration/blocker.h')
| -rw-r--r-- | include/migration/blocker.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/migration/blocker.h b/include/migration/blocker.h new file mode 100644 index 0000000000..acd27018e9 --- /dev/null +++ b/include/migration/blocker.h @@ -0,0 +1,35 @@ +/* + * 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_del_blocker - remove a blocking error from migration + * + * @reason - the error blocking migration + */ +void migrate_del_blocker(Error *reason); + +#endif |