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-rw-r--r--vendor/github.com/containerd/cgroups/control.go88
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diff --git a/vendor/github.com/containerd/cgroups/control.go b/vendor/github.com/containerd/cgroups/control.go
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--- a/vendor/github.com/containerd/cgroups/control.go
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-/*
- Copyright The containerd 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 cgroups
-
-import (
- "os"
-
- specs "github.com/opencontainers/runtime-spec/specs-go"
-)
-
-const (
- cgroupProcs = "cgroup.procs"
- cgroupTasks = "tasks"
- defaultDirPerm = 0755
-)
-
-// defaultFilePerm is a var so that the test framework can change the filemode
-// of all files created when the tests are running. The difference between the
-// tests and real world use is that files like "cgroup.procs" will exist when writing
-// to a read cgroup filesystem and do not exist prior when running in the tests.
-// this is set to a non 0 value in the test code
-var defaultFilePerm = os.FileMode(0)
-
-type Process struct {
- // Subsystem is the name of the subsystem that the process is in
- Subsystem Name
- // Pid is the process id of the process
- Pid int
- // Path is the full path of the subsystem and location that the process is in
- Path string
-}
-
-type Task struct {
- // Subsystem is the name of the subsystem that the task is in
- Subsystem Name
- // Pid is the process id of the task
- Pid int
- // Path is the full path of the subsystem and location that the task is in
- Path string
-}
-
-// Cgroup handles interactions with the individual groups to perform
-// actions on them as them main interface to this cgroup package
-type Cgroup interface {
- // New creates a new cgroup under the calling cgroup
- New(string, *specs.LinuxResources) (Cgroup, error)
- // Add adds a process to the cgroup (cgroup.procs)
- Add(Process) error
- // AddTask adds a process to the cgroup (tasks)
- AddTask(Process) error
- // Delete removes the cgroup as a whole
- Delete() error
- // MoveTo moves all the processes under the calling cgroup to the provided one
- // subsystems are moved one at a time
- MoveTo(Cgroup) error
- // Stat returns the stats for all subsystems in the cgroup
- Stat(...ErrorHandler) (*Metrics, error)
- // Update updates all the subsystems with the provided resource changes
- Update(resources *specs.LinuxResources) error
- // Processes returns all the processes in a select subsystem for the cgroup
- Processes(Name, bool) ([]Process, error)
- // Tasks returns all the tasks in a select subsystem for the cgroup
- Tasks(Name, bool) ([]Task, error)
- // Freeze freezes or pauses all processes inside the cgroup
- Freeze() error
- // Thaw thaw or resumes all processes inside the cgroup
- Thaw() error
- // OOMEventFD returns the memory subsystem's event fd for OOM events
- OOMEventFD() (uintptr, error)
- // State returns the cgroups current state
- State() State
- // Subsystems returns all the subsystems in the cgroup
- Subsystems() []Subsystem
-}