diff options
Diffstat (limited to 'lib/stateid.mli')
| -rw-r--r-- | lib/stateid.mli | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/stateid.mli b/lib/stateid.mli index 9b2de9c894..4563710f84 100644 --- a/lib/stateid.mli +++ b/lib/stateid.mli @@ -42,3 +42,10 @@ type ('a,'b) request = { name : string } +(* Asks the document manager is the given state is valid (or belongs to an + old version of the document) *) +val is_valid : doc:int -> t -> bool + +(* By default [is_valid] always answers true, but a document manager supporting + undo operations like the STM can override this. *) +val set_is_valid : (doc:int -> t -> bool) -> unit |