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F #1843: New Singleton desing pattern for the Scheduler

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juanmont 2018-03-20 16:44:33 +01:00 committed by Ruben S. Montero
parent a1e90f1a0b
commit 433d944eaf
3 changed files with 93 additions and 46 deletions
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72
include/RankScheduler.h Normal file
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@ -0,0 +1,72 @@
/* -------------------------------------------------------------------------- */
/* Copyright 2002-2018, OpenNebula Project, OpenNebula Systems */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); you may */
/* not use this file except in compliance with the License. You may obtain */
/* a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
/* See the License for the specific language governing permissions and */
/* limitations under the License. */
/* -------------------------------------------------------------------------- */
#include "Scheduler.h"
#include "SchedulerTemplate.h"
#include "RankPolicy.h"
#include "UserPriorityPolicy.h"
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <iostream>
#include <sstream>
using namespace std;
class RankScheduler : public Scheduler
{
public:
RankScheduler():Scheduler(),rp_host(0),rp_ds(0),rp_vm(0){};
~RankScheduler()
{
delete rp_host;
delete rp_ds;
delete rp_vm;
};
static RankScheduler& getInstance()
{
static RankScheduler r_sched;
return r_sched;
}
void register_policies(const SchedulerTemplate& conf)
{
rp_host = new RankHostPolicy(hpool, conf.get_policy(), 1.0);
add_host_policy(rp_host);
rp_ds = new RankDatastorePolicy(dspool, conf.get_ds_policy(), 1.0);
add_ds_policy(rp_ds);
rp_vm = new UserPriorityPolicy(vmpool, 1.0);
add_vm_policy(rp_vm);
};
private:
RankPolicy * rp_host;
RankPolicy * rp_ds;
UserPriorityPolicy * rp_vm;
};

19
src/scheduler/include/Scheduler.h
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@ -47,6 +47,17 @@ public:
virtual void register_policies(const SchedulerTemplate& conf) = 0;
template <class T>
static T& getInstance(){
static T obj;
return obj;
};
float get_mem_factor()
{
return factor;
};
protected:
Scheduler():
@ -64,7 +75,8 @@ protected:
one_xmlrpc(""),
machines_limit(0),
dispatch_limit(0),
host_dispatch_limit(0)
host_dispatch_limit(0),
factor(0)
{
am.addListener(this);
};
@ -194,6 +206,11 @@ private:
*/
int zone_id;
/**
* multiplication factor to calculate datastore usage. memory * factor
*/
float factor;
/**
* oned runtime configuration values
*/

48
src/scheduler/src/sched/mm_sched.cc
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@ -14,10 +14,7 @@
/* limitations under the License. */
/* -------------------------------------------------------------------------- */
#include "Scheduler.h"
#include "SchedulerTemplate.h"
#include "RankPolicy.h"
#include "UserPriorityPolicy.h"
#include "RankScheduler.h"
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
@ -26,52 +23,13 @@
#include <iostream>
#include <sstream>
using namespace std;
class RankScheduler : public Scheduler
{
public:
RankScheduler():Scheduler(),rp_host(0),rp_ds(0),rp_vm(0){};
~RankScheduler()
{
delete rp_host;
delete rp_ds;
delete rp_vm;
};
void register_policies(const SchedulerTemplate& conf)
{
rp_host = new RankHostPolicy(hpool, conf.get_policy(), 1.0);
add_host_policy(rp_host);
rp_ds = new RankDatastorePolicy(dspool, conf.get_ds_policy(), 1.0);
add_ds_policy(rp_ds);
rp_vm = new UserPriorityPolicy(vmpool, 1.0);
add_vm_policy(rp_vm);
};
private:
RankPolicy * rp_host;
RankPolicy * rp_ds;
UserPriorityPolicy * rp_vm;
};
int main(int argc, char **argv)
{
RankScheduler ss;
Scheduler& sched = Scheduler::getInstance<RankScheduler>();
try
{
ss.start();
sched.start();
}
catch (exception &e)
{