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package irmin
A content-addressable store is an indexed read-write store in which values are keyed directly by their hashes.
Read-only stores
Read-only stores are store where it is only possible to read existing values.
val mem : [> Perms.read ] t -> key -> bool Lwt.tmem t k is true iff k is present in t.
val find : [> Perms.read ] t -> key -> value option Lwt.tfind t k is Some v if k is associated to v in t and None is k is not present in t.
val add : [> Perms.write ] t -> value -> key Lwt.tWrite the contents of a value to the store. It's the responsibility of the content-addressable store to generate a consistent key.
val unsafe_add : [> Perms.write ] t -> key -> value -> unit Lwt.tSame as add but allows specifying the key directly. The backend might choose to discard that key and/or can be corrupt if the key scheme is not consistent.
close t frees up all the resources associated with t. Any operations run on a closed handle will raise Closed.
val batch :
Perms.read t ->
([ Perms.read | Perms.write ] t -> 'a Lwt.t) ->
'a Lwt.tbatch t f applies the writes in f in a separate batch. The exact guarantees depend on the implementation.
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