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build.ml
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build.ml
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(***********************************************************************)
(* build.ml - Executable: Builds up the key database from a multi-file *)
(* database dump. *)
(* Dump files are taken from the command-line. *)
(* *)
(* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, *)
(* 2011, 2012 Yaron Minsky and Contributors *)
(* *)
(* This file is part of SKS. SKS is free software; you can *)
(* redistribute it and/or modify it under the terms of the GNU General *)
(* Public License as published by the Free Software Foundation; either *)
(* version 2 of the License, or (at your option) any later version. *)
(* *)
(* This program is distributed in the hope that it will be useful, but *)
(* WITHOUT ANY WARRANTY; without even the implied warranty of *)
(* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *)
(* General Public License for more details. *)
(* *)
(* You should have received a copy of the GNU General Public License *)
(* along with this program; if not, write to the Free Software *)
(* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *)
(* USA or see <http://www.gnu.org/licenses/>. *)
(***********************************************************************)
module F(M:sig end) =
struct
open StdLabels
open MoreLabels
open Printf
open Arg
open Common
module Set = PSet.Set
open Packet
let settings = {
Keydb.withtxn = false;
Keydb.cache_bytes = !Settings.cache_bytes;
Keydb.pagesize = !Settings.pagesize;
Keydb.dbdir = !Settings.dbdir;
Keydb.dumpdir = !Settings.dumpdir;
}
module Keydb = Keydb.Safe
let n = match !Settings.n with 0 -> 1 | x -> x
let fnames = !Settings.anonlist
let rec get_keys_rec nextkey partial = match nextkey () with
Some key ->
(try
let ckey = Fixkey.canonicalize key in
get_keys_rec nextkey (ckey::partial)
with
Fixkey.Bad_key -> get_keys_rec nextkey partial
)
| None -> partial
let get_keys nextkey = get_keys_rec nextkey []
let timestr sec =
sprintf "%.2f min" (sec /. 60.)
let rec nsplit n list = match n with
0 -> ([],list)
| n -> match list with
[] -> ([],[])
| hd::tl ->
let (beginning,ending) = nsplit (n-1) tl in
(hd::beginning,ending)
let rec batch_iter ~f n list =
match nsplit n list with
([],_) -> ()
| (firstn,rest) -> f firstn; batch_iter ~f n rest
let get_keys_fname fname start =
let cin = new Channel.sys_in_channel (open_in fname) in
protect
~f:(fun () ->
let nextkey = Key.next_of_channel cin in
get_keys_rec nextkey start
)
~finally:(fun () -> cin#close)
let get_keys_multi flist =
List.fold_left ~f:(fun keys fname -> get_keys_fname fname keys)
flist ~init:[]
let dbtimer = MTimer.create ()
let timer = MTimer.create ()
(***************************************************************)
(* Ignore or the build process may break. *)
(* by Kristian Fiskerstrand *)
let () = Sys.set_signal Sys.sigusr1 Sys.Signal_ignore
let () = Sys.set_signal Sys.sigusr2 Sys.Signal_ignore
(***************************************************************)
let run () =
set_logfile "build";
if Sys.file_exists (!Settings.dbdir) then (
printf "KeyDB directory already exists. Exiting.\n";
exit (-1)
);
Unix.mkdir (!Settings.dbdir) 0o700;
Keydb.open_dbs settings;
Keydb.set_meta ~key:"filters" ~data:"yminsky.dedup";
protect
~f:(fun () ->
batch_iter n fnames
~f:(fun fnames ->
MTimer.start timer;
printf "Loading keys..."; flush stdout;
let keys = get_keys_multi fnames in
printf "done\n"; flush stdout;
MTimer.start dbtimer;
Keydb.add_keys keys;
MTimer.stop dbtimer;
MTimer.stop timer;
printf "DB time: %s. Total time: %s.\n"
(timestr (MTimer.read dbtimer))
(timestr (MTimer.read timer));
flush stdout;
)
)
~finally:(fun () -> Keydb.close_dbs ())
end