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57dc742c76
Bumps [github.com/KimMachineGun/automemlimit](https://github.com/KimMachineGun/automemlimit) from 0.2.4 to 0.2.5. - [Release notes](https://github.com/KimMachineGun/automemlimit/releases) - [Commits](https://github.com/KimMachineGun/automemlimit/compare/v0.2.4...v0.2.5) --- updated-dependencies: - dependency-name: github.com/KimMachineGun/automemlimit dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
100 lines
4 KiB
Go
100 lines
4 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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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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package cgroup1
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import (
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"os"
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v1 "github.com/containerd/cgroups/v3/cgroup1/stats"
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specs "github.com/opencontainers/runtime-spec/specs-go"
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)
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type procType = string
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const (
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cgroupProcs procType = "cgroup.procs"
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cgroupTasks procType = "tasks"
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defaultDirPerm = 0755
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)
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// defaultFilePerm is a var so that the test framework can change the filemode
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// of all files created when the tests are running. The difference between the
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// tests and real world use is that files like "cgroup.procs" will exist when writing
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// to a read cgroup filesystem and do not exist prior when running in the tests.
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// this is set to a non 0 value in the test code
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var defaultFilePerm = os.FileMode(0)
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type Process struct {
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// Subsystem is the name of the subsystem that the process / task is in.
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Subsystem Name
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// Pid is the process id of the process / task.
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Pid int
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// Path is the full path of the subsystem and location that the process / task is in.
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Path string
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}
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type Task = Process
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// Cgroup handles interactions with the individual groups to perform
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// actions on them as them main interface to this cgroup package
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type Cgroup interface {
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// New creates a new cgroup under the calling cgroup
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New(string, *specs.LinuxResources) (Cgroup, error)
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// Add adds a process to the cgroup (cgroup.procs). Without additional arguments,
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// the process is added to all the cgroup subsystems. When giving Add a list of
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// subsystem names, the process is only added to those subsystems, provided that
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// they are active in the targeted cgroup.
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Add(Process, ...Name) error
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// AddProc adds the process with the given id to the cgroup (cgroup.procs).
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// Without additional arguments, the process with the given id is added to all
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// the cgroup subsystems. When giving AddProc a list of subsystem names, the process
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// id is only added to those subsystems, provided that they are active in the targeted
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// cgroup.
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AddProc(uint64, ...Name) error
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// AddTask adds a process to the cgroup (tasks). Without additional arguments, the
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// task is added to all the cgroup subsystems. When giving AddTask a list of subsystem
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// names, the task is only added to those subsystems, provided that they are active in
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// the targeted cgroup.
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AddTask(Process, ...Name) error
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// Delete removes the cgroup as a whole
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Delete() error
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// MoveTo moves all the processes under the calling cgroup to the provided one
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// subsystems are moved one at a time
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MoveTo(Cgroup) error
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// Stat returns the stats for all subsystems in the cgroup
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Stat(...ErrorHandler) (*v1.Metrics, error)
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// Update updates all the subsystems with the provided resource changes
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Update(resources *specs.LinuxResources) error
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// Processes returns all the processes in a select subsystem for the cgroup
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Processes(Name, bool) ([]Process, error)
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// Tasks returns all the tasks in a select subsystem for the cgroup
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Tasks(Name, bool) ([]Task, error)
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// Freeze freezes or pauses all processes inside the cgroup
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Freeze() error
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// Thaw thaw or resumes all processes inside the cgroup
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Thaw() error
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// OOMEventFD returns the memory subsystem's event fd for OOM events
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OOMEventFD() (uintptr, error)
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// RegisterMemoryEvent returns the memory subsystems event fd for whatever memory event was
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// registered for. Can alternatively register for the oom event with this method.
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RegisterMemoryEvent(MemoryEvent) (uintptr, error)
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// State returns the cgroups current state
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State() State
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// Subsystems returns all the subsystems in the cgroup
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Subsystems() []Subsystem
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}
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