boinc/html/inc/bossa_db.inc

303 lines
9.5 KiB
PHP

<?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/>.
require_once("../inc/db_conn.inc");
require_once("../inc/util_basic.inc");
class BossaDb extends DbConn {
public static $instance;
static function get() {
if (!isset($instance)) {
$config = get_config();
$name = parse_config($config, '<bossa_db_name>');
if (!$name) {
$name = parse_config($config, '<db_name>');
$user = parse_config($config, '<db_user>');
$passwd = parse_config($config, '<db_passwd>');
$host = parse_config($config, '<db_host>');
} else {
$user = parse_config($config, '<bossa_db_user>');
$passwd = parse_config($config, '<bossa_db_passwd>');
$host = parse_config($config, '<bossa_db_host>');
}
if ($host == null) {
$host = "localhost";
}
$instance = new DbConn();
$retval = $instance->init_conn($user, $passwd, $host, $name);
if (!$retval) return null;
}
return $instance;
}
static function escape_string($string) {
$db = self::get();
return $db->base_escape_string($string);
}
static function start_transaction() {
//echo "start transaction\n";
return;
$db = BossaDb::get();
$db->do_query("start transaction");
}
static function commit() {
//echo "commit\n";
return;
$db = BossaDb::get();
$db->do_query("commit");
}
}
// use this as a local to ensure that transaction is committed
// regardless of exceptions
//
class BossaTransaction {
function __construct() {
BossaDb::start_transaction();
}
function __destruct() {
BossaDb::commit();
}
}
class BossaUser {
static $cache;
static function lookup_userid($id) {
$db = BossaDb::get();
return $db->lookup('bossa_user', 'BossaUser', "user_id=$id");
}
static function insert($clause) {
$db = BossaDb::get();
return $db->insert('bossa_user', $clause);
}
static function lookup(&$user) {
if (!$user) return;
if (isset($user->bossa)) return;
if (isset(self::$cache[$user->id])) {
$bossa = self::$cache[$user->id];
} else {
$bossa = self::lookup_userid($user->id);
if (!$bossa) {
self::insert("(user_id) values ($user->id)");
$bossa = self::lookup_userid($user->id);
}
self::$cache[$user->id] = $bossa;
}
$user->bossa = $bossa;
}
function update($clause) {
$db = BossaDb::get();
$clause = "$clause where user_id=$this->user_id";
return $db->update_aux('bossa_user', $clause);
}
// app-callable:
//
function get_opaque_data() {
return unserialize($this->info);
}
function set_opaque_data($info) {
$info = serialize($info);
$this->update("info='$info'");
}
}
class BossaApp {
static function insert($clause) {
$db = BossaDb::get();
return $db->insert('bossa_app', $clause);
}
static function lookup($clause) {
$db = BossaDb::get();
return $db->lookup('bossa_app', 'BossaApp', $clause);
}
static function lookup_id($id) {
$db = BossaDb::get();
return $db->lookup_id($id, 'bossa_app', 'BossaApp');
}
static function enum() {
$db = BossaDb::get();
return $db->enum('bossa_app', 'BossaApp');
}
function update($clause) {
$db = BossaDb::get();
return $db->update($this, 'bossa_app', $clause);
}
}
// values for bossa_job.state
//
define("BOSSA_JOB_EMBARGOED", 0);
define("BOSSA_JOB_IN_PROGRESS", 1);
define("BOSSA_JOB_DONE", 2);
define("BOSSA_JOB_INCONCLUSIVE", 3);
class BossaJob {
static function insert($clause) {
$db = BossaDb::get();
$ret = $db->insert('bossa_job', $clause);
if (!$ret) return 0;
return $db->insert_id();
}
function update($clause) {
$db = BossaDb::get();
return $db->update($this, 'bossa_job', $clause);
}
static function lookup_id($id) {
$db = BossaDb::get();
return $db->lookup_id($id, 'bossa_job', 'BossaJob');
}
static function enum($clause) {
$db = BossaDb::get();
return $db->enum('bossa_job', 'BossaJob', $clause);
}
static function count($clause) {
$db = BossaDb::get();
return $db->count('bossa_job', $clause);
}
// app-callable:
//
function get_opaque_data() {
return unserialize($this->info);
}
function set_priority($x) {
return $this->update("priority_0=$x");
}
function get_instances() {
return BossaJobInst::enum("job_id = $this->id");
}
function get_finished_instances() {
return BossaJobInst::enum("job_id = $this->id and finish_time>0");
}
function set_state($s) {
$this->update("state=$s");
}
}
class BossaJobInst {
function insert($clause) {
$db = BossaDb::get();
$ret = $db->insert('bossa_job_inst', $clause);
if (!$ret) return 0;
return $db->insert_id();
}
static function lookup_id($id) {
$db = BossaDb::get();
return $db->lookup_id($id, 'bossa_job_inst', 'BossaJobInst');
}
static function enum($clause) {
$db = BossaDb::get();
return $db->enum('bossa_job_inst', 'BossaJobInst', $clause);
}
function update($clause) {
$db = BossaDb::get();
return $db->update($this, 'bossa_job_inst', $clause);
}
// Assign a job from the given app to the given user.
// Returns the job instance or NULL.
//
static function assign($app, $user) {
$db = BossaDb::get();
// first look for unfinished jobs previously assigned to this user
//
$query = "select * from ".$db->db_name.".bossa_job_inst where app_id=$app->id and user_id=$user->id and finish_time=0 limit 1";
$result = $db->do_query($query);
if ($result) {
$ji = mysql_fetch_object($result, 'BossaJobInst');
mysql_free_result($result);
if ($ji) return $ji;
}
if ($app->calibration_frac && drand() < $app->calibration_frac) {
$query = "select * from ".$db->db_name.".bossa_job where app_id=$app->id and (select count(*) from ".$db->db_name.".bossa_job_inst where job_id=bossa_job.id and user_id=$user->id) = 0 and state=1 and calibration=1 order by priority_0 desc limit 1";
$result = $db->do_query($query);
if (!$result) return null;
$job = mysql_fetch_object($result, 'BossaJob');
if (!$job) return null;
$job->update("priority_0=priority_0-1");
mysql_free_result($result);
} else {
if (isset($user->bossa->category)) {
$prio = "priority_".$user->bossa->category;
} else {
$prio = "priority_0";
}
// skips jobs for which this user
// has already been assigned an instance
//
$query = "select * from ".$db->db_name.".bossa_job where app_id=$app->id and (select count(*) from ".$db->db_name.".bossa_job_inst where job_id=bossa_job.id and user_id=$user->id) = 0 and state=1 and calibration=0 order by $prio desc limit 1";
$result = $db->do_query($query);
if (!$result) return null;
$job = mysql_fetch_object($result, 'BossaJob');
if (!$job) return null;
mysql_free_result($result);
}
$now = time();
$clause = "(create_time, app_id, job_id, user_id, batch_id, calibration) values ($now, $app->id, $job->id, $user->id, $job->batch_id, $job->calibration)";
$id = BossaJobInst::insert($clause);
return BossaJobInst::lookup_id($id);
}
function delete_aux($clause) {
$db = BossaDb::get();
return $db->delete_aux('bossa_job_inst', $clause);
}
// app-callable functions
//
function set_opaque_data($info) {
$info = serialize($info);
return $this->update("info='$info'");
}
function get_opaque_data() {
return unserialize($this->info);
}
function get_user() {
$user = BoincUser::lookup_id($this->user_id);
BossaUser::lookup($user);
return $user;
}
}
class BossaBatch {
function insert($clause) {
$db = BossaDb::get();
$ret = $db->insert('bossa_batch', $clause);
if (!$ret) return 0;
return $db->insert_id();
}
static function enum($clause) {
$db = BossaDb::get();
return $db->enum('bossa_batch', 'BossaBatch', $clause);
}
static function lookup_id($id) {
$db = BossaDb::get();
return $db->lookup_id($id, 'bossa_batch', 'BossaBatch');
}
}
?>