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<?php
// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2008 University of California
//
// BOINC is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// BOINC 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
// script to delete results with no corresponding workunit.
// In theory these shouldn't exist,
// but (because of crashes or bugs) they sometimes do.
// db_purge doesn't get rid of them; this does
$cli_only = true;
require_once("../inc/util_ops.inc");
require_once("../inc/db.inc");
set_time_limit(0);
// get lists of current results and WUs.
// Do selects in this order so that we'll get all relevant results
//
function get_lists() {
$config = get_config();
$db_name = parse_config($config, "<db_name>");
$db_host = parse_config($config, "<db_host>");
system("mysql $db_name -h $db_host -e \"select workunitid, id from result \" | tail -n +2 | sort -n > dbc_res.dat");
system("mysql $db_name -h $db_host -e \"select id from workunit\" | tail -n +2 | sort -n > dbc_wu.dat");
}
// N.B.: on Linux we can use join -v to find results without WU.
// But for some reason this doesn't work on Solaris (*&^@#).
// So we roll our own.
// Note: it's
//
function join_lists() {
$fwu = fopen('dbc_wu.dat', 'r');
$fres = fopen('dbc_res.dat', 'r');
$fout = fopen('dbc_out.dat', 'w');
$wuid = 0;
$n = 0;
while (1) {
$n++;
if ($n % 1000 == 0) echo "$n\n";
$x = fgets($fres);
if (!$x) break;
list($reswuid, $resid) = sscanf($x, "%d %d");
if (feof($fwu)) {
fputs($fout, "$resid\n");
continue;
}
while ($wuid < $reswuid) {
$y = fgets($fwu);
if (!$y) {
$wuid = 999999999999;
break;
}
sscanf($y, "%d", $wuid);
}
if ($wuid == $reswuid) continue;
if ($wuid > $reswuid) {
fputs($fout, "$resid\n");
continue;
}
}
}
// It would be better to have db_purge delete the results
// (and write them to XML archive)
// but it's not clear how to do this.
// So just delete them.
//
function delete_results() {
db_init();
$f = fopen('dbc_out.dat', 'r');
while (1) {
$x = fgets($f);
if (!$x) break;
$n = sscanf($x, "%d", $resid);
if ($n != 1) {
echo "bad line: $x\n";
continue;
}
$result = BoincResult::lookup_id($resid);
if (!$result) {
echo "no result $resultid\n";
continue;
}
$wu = BoincWorkunit::lookup_id($result->workunitid);
if ($wu) {
echo "result has WU: $resid\n";
continue;
}
echo "deleting $resid\n";
// uncomment the following to actually delete
die("edit script to enable deletion\n");
//_mysql_query("delete from result where id=$resid");
}
}
get_lists();
join_lists();
delete_results();
?>
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