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// Copyright 2021 The gVisor Authors.
//
// 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 cgroupfs
import (
"gvisor.dev/gvisor/pkg/atomicbitops"
"gvisor.dev/gvisor/pkg/context"
"gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs"
"gvisor.dev/gvisor/pkg/sentry/kernel"
"gvisor.dev/gvisor/pkg/sentry/kernel/auth"
)
// +stateify savable
type jobController struct {
controllerCommon
controllerStateless
controllerNoResource
id atomicbitops.Int64
}
var _ controller = (*jobController)(nil)
func newJobController(fs *filesystem) *jobController {
c := &jobController{}
c.controllerCommon.init(kernel.CgroupControllerJob, fs)
return c
}
// Clone implements controller.Clone.
func (c *jobController) Clone() controller {
new := &jobController{
id: atomicbitops.FromInt64(c.id.Load()),
}
new.controllerCommon.cloneFromParent(c)
return new
}
func (c *jobController) AddControlFiles(ctx context.Context, creds *auth.Credentials, _ *cgroupInode, contents map[string]kernfs.Inode) {
contents["job.id"] = c.fs.newStubControllerFile(ctx, creds, &c.id, true)
}
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