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boinc/sched/sched_assign.cpp

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// 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/>.
//
// scheduler functions to send assigned jobs.
#include "config.h"
#ifdef _USING_FCGI_
#include "boinc_fcgi.h"
#else
#include <cstdio>
#endif
#include <sys/param.h>
#include <unistd.h>
#include "backend_lib.h"
#include "boinc_db.h"
#include "crypt.h"
#include "error_numbers.h"
#include "filesys.h"
#include "sched_check.h"
#include "sched_main.h"
#include "sched_msgs.h"
#include "sched_send.h"
#include "sched_version.h"
#include "sched_types.h"
#include "sched_assign.h"
// The workunit is targeted to the host (or user or team).
// Decide if we should actually send an instance
//
bool need_targeted_instance(WORKUNIT& wu, int hostid) {
// don't send if WU had error or was canceled
// (db_purge will eventually delete WU and assignment records)
//
if (wu.error_mask) {
return false;
}
// don't send if WU is validation pending or completed,
// or has transition pending
//
if (wu.need_validate) return false;
if (wu.canonical_resultid) return false;
if (wu.transition_time < time(0)) return false;
// See if this WU needs another instance.
// This replicates logic in the transitioner
//
char buf[256];
DB_RESULT result;
int nunsent=0, ninprogress=0, nsuccess=0;
sprintf(buf, "where workunitid=%lu", wu.id);
while (!result.enumerate(buf)) {
// send at most 1 instance to a given host
//
if (result.hostid == hostid) {
return false;
}
switch (result.server_state) {
case RESULT_SERVER_STATE_INACTIVE:
case RESULT_SERVER_STATE_UNSENT:
nunsent++;
break;
case RESULT_SERVER_STATE_IN_PROGRESS:
ninprogress++;
break;
case RESULT_SERVER_STATE_OVER:
if (result.outcome == RESULT_OUTCOME_SUCCESS
&& result.validate_state != VALIDATE_STATE_INVALID
) {
nsuccess++;
}
break;
}
}
int needed = wu.target_nresults - nunsent - ninprogress - nsuccess;
if (needed <= 0) return false;
return true;
}
// send a job for the given assignment
//
static int send_assigned_job(ASSIGNMENT& asg) {
int retval;
DB_WORKUNIT wu;
char suffix[256], path[MAXPATHLEN];
const char *rtfpath;
static bool first=true;
static int seqno=0;
static R_RSA_PRIVATE_KEY key;
BEST_APP_VERSION* bavp;
if (first) {
first = false;
sprintf(path, "%s/upload_private", config.key_dir);
retval = read_key_file(path, key);
if (retval) {
log_messages.printf(MSG_CRITICAL, "can't read key\n");
return -1;
}
}
retval = wu.lookup_id(asg.workunitid);
if (retval) {
log_messages.printf(MSG_CRITICAL,
"assigned WU %lu not found\n", asg.workunitid
);
return retval;
}
if (app_not_selected(wu.appid)) {
log_messages.printf(MSG_CRITICAL,
"Assigned WU %s is for app not selected by user\n", wu.name
);
return -1;
}
bavp = get_app_version(wu, false, false);
if (!bavp) {
log_messages.printf(MSG_CRITICAL,
"App version for assigned WU not found\n"
);
return ERR_NOT_FOUND;
}
rtfpath = config.project_path("%s", wu.result_template_file);
sprintf(suffix, "%d_%d_%d", getpid(), (int)time(0), seqno++);
retval = create_result(
wu, const_cast<char*>(rtfpath), suffix, key, config, 0, 0
);
if (retval) {
log_messages.printf(MSG_CRITICAL,
"[WU#%lu %s] create_result(): %s\n", wu.id, wu.name, boincerror(retval)
);
return retval;
}
DB_ID_TYPE result_id = boinc_db.insert_id();
SCHED_DB_RESULT result;
retval = result.lookup_id(result_id);
add_result_to_reply(result, wu, bavp, false);
if (config.debug_assignment) {
log_messages.printf(MSG_NORMAL,
"[assign] [WU#%lu] [RESULT#%lu] [HOST#%lu] send assignment %lu\n",
wu.id, result_id, g_reply->host.id, asg.id
);
}
return 0;
}
// Send this host any broadcast jobs.
// Return true iff we sent anything
//
bool send_broadcast_jobs() {
DB_RESULT result;
int retval;
char buf[256];
bool sent_something = false;
for (int i=0; i<ssp->nassignments; i++) {
ASSIGNMENT& asg = ssp->assignments[i];
if (config.debug_assignment) {
log_messages.printf(MSG_NORMAL,
"[assign] processing broadcast type %d\n",
asg.target_type
);
}
// see if this assignment applies to this host
//
switch (asg.target_type) {
case ASSIGN_NONE:
sprintf(buf, "where hostid=%lu and workunitid=%lu",
g_reply->host.id, asg.workunitid
);
retval = result.lookup(buf);
if (retval == ERR_DB_NOT_FOUND) {
retval = send_assigned_job(asg);
if (!retval) sent_something = true;
}
break;
case ASSIGN_USER:
if (g_reply->user.id != asg.target_id) continue;
sprintf(buf, "where workunitid=%lu and hostid=%lu",
asg.workunitid, g_reply->host.id
);
retval = result.lookup(buf);
if (retval == ERR_DB_NOT_FOUND) {
retval = send_assigned_job(asg);
if (!retval) sent_something = true;
}
break;
case ASSIGN_TEAM:
if (g_reply->team.id != asg.target_id) continue;
sprintf(buf, "where workunitid=%lu and hostid=%lu",
asg.workunitid, g_reply->host.id
);
retval = result.lookup(buf);
if (retval == ERR_DB_NOT_FOUND) {
retval = send_assigned_job(asg);
if (!retval) sent_something = true;
}
break;
}
}
return sent_something;
}
// Send targeted jobs of a given type.
// NOTE: there may be an atomicity problem in the following.
// Ideally it should be in a transaction.
//
bool send_jobs(int assign_type) {
DB_ASSIGNMENT asg;
DB_RESULT result;
DB_WORKUNIT wu;
int retval;
bool sent_something = false;
char query[256];
switch (assign_type) {
case ASSIGN_USER:
sprintf(query, "where target_type=%d and target_id=%lu and multi=0",
ASSIGN_USER, g_reply->user.id
);
break;
case ASSIGN_HOST:
sprintf(query, "where target_type=%d and target_id=%lu and multi=0",
ASSIGN_HOST, g_reply->host.id
);
break;
case ASSIGN_TEAM:
sprintf(query, "where target_type=%d and target_id=%lu and multi=0",
ASSIGN_TEAM, g_reply->team.id
);
break;
}
while (!asg.enumerate(query)) {
if (!work_needed(false)) {
asg.end_enumerate();
break;
}
// if the WU doesn't exist, delete the assignment record.
//
retval = wu.lookup_id(asg.workunitid);
if (retval) {
asg.delete_from_db();
continue;
}
if (!need_targeted_instance(wu, g_reply->host.id)) {
continue;
}
// OK, send the job
//
if (config.debug_send) {
log_messages.printf(MSG_NORMAL,
"sending targeted job: %s\n", wu.name
);
}
retval = send_assigned_job(asg);
if (retval) {
log_messages.printf(MSG_NORMAL,
"failed to send targeted job: %s\n", boincerror(retval)
);
continue;
}
sent_something = true;
// update the WU's transition time to time out this job
//
retval = wu.lookup_id(asg.workunitid);
if (retval) continue;
int new_tt = time(0) + wu.delay_bound;
if (new_tt < wu.transition_time) {
char buf2[256];
sprintf(buf2, "transition_time=%d", new_tt);
wu.update_field(buf2);
}
}
return sent_something;
}
// send targeted jobs
//
bool send_targeted_jobs() {
bool sent_something = false;
if (config.debug_send) {
log_messages.printf(MSG_NORMAL, "checking for targeted jobs\n");
}
sent_something |= send_jobs(ASSIGN_USER);
sent_something |= send_jobs(ASSIGN_HOST);
sent_something |= send_jobs(ASSIGN_TEAM);
return sent_something;
}
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