boinc/sched/sched_hr.C

114 lines
3.3 KiB
C

// Berkeley Open Infrastructure for Network Computing
// http://boinc.berkeley.edu
// Copyright (C) 2005 University of California
//
// This 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 2.1 of the License, or (at your option) any later version.
//
// This software 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.
//
// To view the GNU Lesser General Public License visit
// http://www.gnu.org/copyleft/lesser.html
// or write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
// scheduler code related to homogeneous redundancy
#include "config.h"
#include <ctime>
#include <cstdio>
#include <stdlib.h>
#include <cstring>
#include <string>
#include "error_numbers.h"
#include "server_types.h"
#include "sched_config.h"
#include "sched_msgs.h"
#include "main.h"
#include "hr.h"
#include "sched_hr.h"
#ifdef _USING_FCGI_
#include "fcgi_stdio.h"
#else
#define FCGI_ToFILE(x) (x)
#endif
// return true if HR rules out sending any work to this host
//
bool hr_unknown_platform(HOST& host) {
for (int i=0; i<ssp->napps; i++) {
APP& app = ssp->apps[i];
if (!hr_unknown_platform_type(host, app_hr_type(app))) return false;
}
return true;
}
// quick check for platform compatibility
//
bool already_sent_to_different_platform_quick(
SCHEDULER_REQUEST& sreq, WORKUNIT& wu, APP& app
) {
if (wu.hr_class && (hr_class(sreq.host, app_hr_type(app)) != wu.hr_class)) {
return true;
}
return false;
}
// If we've already sent a result of this WU to a different platform
// return true
// else if we haven't sent a result to ANY platform
// update WU with platform code
// return false
//
// (where "platform" is os_name + p_vendor; may want to sharpen this for Unix)
//
// This is "careful" in that it rereads the WU from DB
//
bool already_sent_to_different_platform_careful(
SCHEDULER_REQUEST& sreq, WORK_REQ& wreq, WORKUNIT& workunit, APP& app
) {
DB_WORKUNIT db_wu;
int retval, wu_hr_class;
char buf[256], buf2[256];
// reread hr_class field from DB in case it's changed
//
db_wu.id = workunit.id;
retval = db_wu.get_field_int("hr_class", wu_hr_class);
if (retval) {
log_messages.printf(MSG_CRITICAL,
"can't get hr_class for %d: %d\n",
db_wu.id, retval
);
return true;
}
wreq.hr_reject_temp = false;
int host_hr_class = hr_class(sreq.host, app_hr_type(app));
if (wu_hr_class) {
if (host_hr_class != wu_hr_class) {
wreq.hr_reject_temp = true;
}
} else {
// do a "careful update" to make sure the WU's hr_class hasn't
// changed since we read it earlier
//
sprintf(buf, "hr_class=%d", host_hr_class);
sprintf(buf2, "hr_class=%d", wu_hr_class);
retval = db_wu.update_field(buf, buf2);
if (retval) return true;
if (boinc_db.affected_rows() != 1) return true;
}
return wreq.hr_reject_temp;
}
const char *BOINC_RCSID_4196d9a5b4="$Id$";