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|
(***********************************************************************)
(* pbuild.ml - Executable: Builds a prefix-tree database from an *)
(* existing Keydb *)
(* *)
(* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, *)
(* 2011, 2012, 2013 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 Common
open Bdb
module PTree = PrefixTree
let keydb_settings = {
Keydb.withtxn = false;
Keydb.cache_bytes = !Settings.cache_bytes;
Keydb.pagesize = !Settings.pagesize;
Keydb.keyid_pagesize = !Settings.keyid_pagesize;
Keydb.meta_pagesize = !Settings.meta_pagesize;
Keydb.subkeyid_pagesize = !Settings.subkeyid_pagesize;
Keydb.time_pagesize = !Settings.time_pagesize;
Keydb.tqueue_pagesize = !Settings.tqueue_pagesize;
Keydb.word_pagesize = !Settings.word_pagesize;
Keydb.dbdir = (Lazy.force Settings.dbdir);
Keydb.dumpdir = (Lazy.force Settings.dumpdir);
}
module Keydb = Keydb.Safe
open PTreeDB
let ptree_settings = {
mbar = !Settings.mbar;
bitquantum = !Settings.bitquantum;
treetype = `ondisk;
max_nodes = !Settings.max_ptree_nodes;
dbdir = Lazy.force Settings.ptree_dbdir;
cache_bytes = !Settings.ptree_cache_bytes;
pagesize = !Settings.ptree_pagesize;
}
let num_samples = ptree_settings.mbar + 1
let rec get_n n str = match n with
0 -> []
| _ ->
match SStream.next str with
None -> []
| Some x -> x::(get_n (n-1) str)
let process_hashes hashes ptree =
List.iter ~f:(PTree.insert_str ptree None) hashes
let run str () =
let ptree = PTree.create ?db:(get_db ()) ~txn:None
~num_samples ~bitquantum:ptree_settings.bitquantum
~thresh:(ptree_settings.mbar * !Settings.ptree_thresh_mult) ()
in
let count = ref 0 in
while
match get_n 5000 str with
[] -> false
| hashes ->
process_hashes hashes ptree;
count := !count + List.length hashes;
perror "%d hashes processed" !count;
true
do () done;
let last_ts = Keydb.last_ts () in
PTree.set_synctime ptree last_ts;
perror "Cleaning Tree.";
PTree.clean None ptree
(***************************************************************)
let () = Sys.set_signal Sys.sigusr1 Sys.Signal_ignore
let () = Sys.set_signal Sys.sigusr2 Sys.Signal_ignore
(***************************************************************)
let run () =
set_logfile "pbuild";
perror "Running SKS %s%s" Common.version Common.version_suffix;
if Sys.file_exists (Lazy.force Settings.ptree_dbdir) then (
printf "PTree directory already exists. Exiting.\n";
exit (-1)
);
PTreeDB.init_db ptree_settings;
perror "Opening dbs...";
Keydb.open_dbs keydb_settings;
let (hstr,hstr_close) = Keydb.create_hashstream () in
protect ~f:(run hstr)
~finally:(fun () ->
PTreeDB.closedb ();
hstr_close ();
Keydb.close_dbs ();
)
end
|
