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F #1843: New Singleton desing pattern for the Scheduler
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include/RankScheduler.h
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72
include/RankScheduler.h
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@ -0,0 +1,72 @@
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/* -------------------------------------------------------------------------- */
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/* Copyright 2002-2018, OpenNebula Project, OpenNebula Systems */
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/* */
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/* Licensed under the Apache License, Version 2.0 (the "License"); you may */
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/* not use this file except in compliance with the License. You may obtain */
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/* a copy of the License at */
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/* */
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/* http://www.apache.org/licenses/LICENSE-2.0 */
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/* */
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/* Unless required by applicable law or agreed to in writing, software */
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/* distributed under the License is distributed on an "AS IS" BASIS, */
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/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
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/* See the License for the specific language governing permissions and */
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/* limitations under the License. */
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/* -------------------------------------------------------------------------- */
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#include "Scheduler.h"
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#include "SchedulerTemplate.h"
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#include "RankPolicy.h"
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#include "UserPriorityPolicy.h"
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <iostream>
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#include <sstream>
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using namespace std;
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class RankScheduler : public Scheduler
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{
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public:
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RankScheduler():Scheduler(),rp_host(0),rp_ds(0),rp_vm(0){};
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~RankScheduler()
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{
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delete rp_host;
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delete rp_ds;
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delete rp_vm;
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};
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static RankScheduler& getInstance()
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{
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static RankScheduler r_sched;
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return r_sched;
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}
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void register_policies(const SchedulerTemplate& conf)
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{
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rp_host = new RankHostPolicy(hpool, conf.get_policy(), 1.0);
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add_host_policy(rp_host);
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rp_ds = new RankDatastorePolicy(dspool, conf.get_ds_policy(), 1.0);
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add_ds_policy(rp_ds);
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rp_vm = new UserPriorityPolicy(vmpool, 1.0);
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add_vm_policy(rp_vm);
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};
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private:
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RankPolicy * rp_host;
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RankPolicy * rp_ds;
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UserPriorityPolicy * rp_vm;
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};
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@ -47,6 +47,17 @@ public:
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virtual void register_policies(const SchedulerTemplate& conf) = 0;
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template <class T>
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static T& getInstance(){
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static T obj;
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return obj;
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};
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float get_mem_factor()
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{
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return factor;
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};
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protected:
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Scheduler():
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@ -64,7 +75,8 @@ protected:
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one_xmlrpc(""),
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machines_limit(0),
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dispatch_limit(0),
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host_dispatch_limit(0)
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host_dispatch_limit(0),
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factor(0)
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{
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am.addListener(this);
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};
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@ -194,6 +206,11 @@ private:
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*/
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int zone_id;
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/**
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* multiplication factor to calculate datastore usage. memory * factor
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*/
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float factor;
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/**
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* oned runtime configuration values
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*/
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@ -14,10 +14,7 @@
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/* limitations under the License. */
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/* -------------------------------------------------------------------------- */
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#include "Scheduler.h"
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#include "SchedulerTemplate.h"
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#include "RankPolicy.h"
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#include "UserPriorityPolicy.h"
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#include "RankScheduler.h"
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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@ -26,52 +23,13 @@
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#include <iostream>
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#include <sstream>
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using namespace std;
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class RankScheduler : public Scheduler
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{
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public:
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RankScheduler():Scheduler(),rp_host(0),rp_ds(0),rp_vm(0){};
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~RankScheduler()
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{
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delete rp_host;
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delete rp_ds;
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delete rp_vm;
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};
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void register_policies(const SchedulerTemplate& conf)
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{
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rp_host = new RankHostPolicy(hpool, conf.get_policy(), 1.0);
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add_host_policy(rp_host);
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rp_ds = new RankDatastorePolicy(dspool, conf.get_ds_policy(), 1.0);
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add_ds_policy(rp_ds);
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rp_vm = new UserPriorityPolicy(vmpool, 1.0);
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add_vm_policy(rp_vm);
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};
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private:
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RankPolicy * rp_host;
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RankPolicy * rp_ds;
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UserPriorityPolicy * rp_vm;
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};
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int main(int argc, char **argv)
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{
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RankScheduler ss;
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Scheduler& sched = Scheduler::getInstance<RankScheduler>();
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try
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{
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ss.start();
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sched.start();
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}
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catch (exception &e)
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{
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