diff options
Diffstat (limited to 'plugins/micromega/persistent_cache.ml')
| -rw-r--r-- | plugins/micromega/persistent_cache.ml | 29 |
1 files changed, 11 insertions, 18 deletions
diff --git a/plugins/micromega/persistent_cache.ml b/plugins/micromega/persistent_cache.ml index 3360a9a51c..21178a64a5 100644 --- a/plugins/micromega/persistent_cache.ml +++ b/plugins/micromega/persistent_cache.ml @@ -36,10 +36,8 @@ module PHashtable (Key : HashedType) : PHashtable with type key = Key.t = struct module Table = Hashtbl.Make (Key) exception InvalidTableFormat - exception UnboundTable - type mode = Closed | Open - type 'a t = {outch : out_channel; mutable status : mode; htbl : 'a Table.t} + type 'a t = {outch : out_channel; htbl : 'a Table.t} (* XXX: Move to Fun.protect once in Ocaml 4.08 *) let fun_protect ~(finally : unit -> unit) work = @@ -118,7 +116,6 @@ module PHashtable (Key : HashedType) : PHashtable with type key = Key.t = struct close_in_noerr inch; { outch = out_channel_of_descr (openfile f [O_WRONLY; O_APPEND; O_CREAT] 0o666) - ; status = Open ; htbl } with InvalidTableFormat -> (* The file is corrupted *) @@ -131,24 +128,20 @@ module PHashtable (Key : HashedType) : PHashtable with type key = Key.t = struct (fun k e -> Marshal.to_channel outch (k, e) [Marshal.No_sharing]) htbl; flush outch); - {outch; status = Open; htbl} + {outch; htbl} let add t k e = - let {outch; status; htbl = tbl} = t in - if status == Closed then raise UnboundTable - else - let fd = descr_of_out_channel outch in - Table.add tbl k e; - do_under_lock Write fd (fun _ -> - Marshal.to_channel outch (k, e) [Marshal.No_sharing]; - flush outch) + let {outch; htbl = tbl} = t in + let fd = descr_of_out_channel outch in + Table.add tbl k e; + do_under_lock Write fd (fun _ -> + Marshal.to_channel outch (k, e) [Marshal.No_sharing]; + flush outch) let find t k = - let {outch; status; htbl = tbl} = t in - if status == Closed then raise UnboundTable - else - let res = Table.find tbl k in - res + let {outch; htbl = tbl} = t in + let res = Table.find tbl k in + res let memo cache f = let tbl = lazy (try Some (open_in cache) with _ -> None) in |