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process.go
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process.go
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/*
* This file is part of the KubeVirt project
*
* 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.
*
* Copyright 2021 Red Hat, Inc.
*
*/
package isolation
import (
"strings"
"github.com/mitchellh/go-ps"
)
// childProcesses given a list of processes, it returns the ones that are children
// of the given PID.
func childProcesses(processes []ps.Process, pid int) []ps.Process {
var childProcesses []ps.Process
for _, process := range processes {
if process.PPid() == pid {
childProcesses = append(childProcesses, process)
}
}
return childProcesses
}
// lookupProcessByExecutablePrefix given list of processes, it return the first occurrence
// of a process with the given executable prefix.
func lookupProcessByExecutablePrefix(processes []ps.Process, execPrefix string) ps.Process {
if execPrefix == "" {
return nil
}
for _, process := range processes {
if strings.HasPrefix(process.Executable(), execPrefix) {
return process
}
}
return nil
}