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/
simulation.go
128 lines (103 loc) · 2.56 KB
/
simulation.go
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/*
// Copyright (c) 2016 Intel Corporation
//
// 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.
*/
package main
import (
"math/rand"
"os"
"sync"
"time"
"github.com/golang/glog"
)
type simulation struct {
instanceDir string
closedCh chan struct{}
connectedCh chan struct{}
killCh chan struct{}
monitorCh chan interface{}
wg *sync.WaitGroup
cpus int
mem int
disk int
}
func (s *simulation) init(cfg *vmConfig, instanceDir string) {
s.cpus = cfg.Cpus
s.mem = cfg.Mem
s.disk = cfg.Disk
s.instanceDir = instanceDir
}
func (s *simulation) ensureBackingImage() error {
return nil
}
func (s *simulation) createImage(bridge, gatewayIP string, userData, metaData []byte) error {
return nil
}
func (s *simulation) deleteImage() error {
return nil
}
func fakeVM(s *simulation) {
glog.Infof("fakeVM started")
source := rand.NewSource(time.Now().UnixNano())
r := rand.New(source)
delay := r.Int63n(1000)
delay++
glog.Infof("Will start in %d milliseconds", delay)
ticker := time.NewTicker(time.Duration(delay) * time.Millisecond)
VM:
for {
select {
case cmd, ok := <-s.monitorCh:
if !ok {
s.monitorCh = nil
break VM
}
if _, stopCmd := cmd.(virtualizerStopCmd); stopCmd {
break VM
}
case <-s.killCh:
break VM
case <-ticker.C:
ticker.Stop()
close(s.connectedCh)
ticker.C = nil
}
}
if s.wg != nil {
s.wg.Done()
}
}
func (s *simulation) startVM(vnicName, ipAddress, cephID string, fds []*os.File) error {
glog.Infof("startVM\n")
s.killCh = make(chan struct{})
return nil
}
func (s *simulation) monitorVM(closedCh chan struct{}, connectedCh chan struct{}, wg *sync.WaitGroup, boot bool) chan interface{} {
glog.Infof("monitorVM\n")
s.closedCh = closedCh
s.connectedCh = connectedCh
s.wg = wg
s.monitorCh = make(chan interface{})
go fakeVM(s)
return s.monitorCh
}
func (s *simulation) stats() (disk, memory, cpu int) {
return s.disk / 10, s.mem / 10, s.cpus / 10
}
func (s *simulation) connected() {
glog.Infof("connected\n")
}
func (s *simulation) lostVM() {
glog.Infof("simulation: lostVM\n")
}