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https://github.com/aljazceru/kata-containers.git
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21698aadc1
detail commit change
$ git log --no-merges --abbrev-commit --pretty=oneline "5017d4e9a9cf2d4381db99eacd9baf84b95bfb14..c4b9ac5c7601384c965b9646fc515884e091ebb9" | sed 's/^/ /g'
f627015 avoid adding io_serviced and io_service_bytes duplicately
13a3ac4 fixed an issue with invalid soft memory limits
215221e Add makefile for go and protos
0ecd2b6 cgroups: fix MoveTo function fail problem
38dc3ac Correct forked Travis builds
a9a304a Add Go 1.12 to Travis
51dcf5f Fix cgroup hugetlb size prefix for kB
1741ae0 add network stats
453efe3 Return ErrCgroupDeleted when no subsystems
4a9f0f7 Add SkipOpts for handling how subsystems are registered
4dacf2b Check for non-active/supported cgroups
2fd912c Add tests for pids
afd5981 Gofmt cgroup_test
f48bd85 Fixs return error message
64bade4 Take value instead of pointer value
b49c471 Correct ineffassign warning
6b552a8 Fix net_prio typo
a31a0ff Add functionality for retrieving all tasks of a cgroup
7d825b2 Add test for cgroups load when missing hierarchy in one subsystem
f6cbfb4 Change Load function in order to be more lenient on subsystems' checking
ab9ec0e Add go-systemd dep for CI testing
9a09e58 Fix gofmt of systemd.go
e13f6cc Add GoReportCard badge to README
d124595 Add Go 1.11 to Travis
d961ab9 Correct typo
e4cf832 Add project references and use common project travis
9de57ff Add godoc badge to README.md
Signed-off-by: Ace-Tang <aceapril@126.com>
89 lines
3.1 KiB
Go
89 lines
3.1 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 cgroups
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import (
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"os"
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specs "github.com/opencontainers/runtime-spec/specs-go"
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)
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const (
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cgroupProcs = "cgroup.procs"
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cgroupTasks = "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 is in
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Subsystem Name
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// Pid is the process id of the process
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Pid int
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// Path is the full path of the subsystem and location that the process is in
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Path string
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}
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type Task struct {
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// Subsystem is the name of the subsystem that the task is in
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Subsystem Name
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// Pid is the process id of the task
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Pid int
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// Path is the full path of the subsystem and location that the task is in
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Path string
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}
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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)
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Add(Process) error
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// AddTask adds a process to the cgroup (tasks)
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AddTask(Process) 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) (*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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// 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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