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823faee83a
To resourcecontrol, and make it consistent with the fact that cgroups are a Linux implementation of the ResourceController interface. Fixes: #3601 Signed-off-by: Samuel Ortiz <s.ortiz@apple.com>
83 lines
2.1 KiB
Go
83 lines
2.1 KiB
Go
// Copyright (c) 2021 Apple Inc.
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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package resourcecontrol
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import (
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v1 "github.com/containerd/cgroups/stats/v1"
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"github.com/opencontainers/runtime-spec/specs-go"
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"github.com/sirupsen/logrus"
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)
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var (
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controllerLogger = logrus.WithField("source", "virtcontainers/pkg/resourcecontrol")
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)
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// SetLogger sets up a logger for this pkg
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func SetLogger(logger *logrus.Entry) {
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fields := controllerLogger.Data
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controllerLogger = logger.WithFields(fields)
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}
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// HypervisorType describes an hypervisor type.
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type ResourceControllerType string
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const (
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LinuxCgroups ResourceControllerType = "cgroups"
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)
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// String converts an hypervisor type to a string.
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func (rType *ResourceControllerType) String() string {
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switch *rType {
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case LinuxCgroups:
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return string(LinuxCgroups)
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default:
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return "Unknown controller type"
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}
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}
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// ResourceController represents a system resources controller.
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// On Linux this interface is implemented through the cgroups API.
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type ResourceController interface {
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// Type returns the resource controller implementation type.
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Type() ResourceControllerType
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// The controller identifier, e.g. a Linux cgroups path.
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ID() string
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// Parent returns the parent controller, on hierarchically
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// defined resource (e.g. Linux cgroups).
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Parent() string
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// Delete the controller.
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Delete() error
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// Stat returns the statistics for the controller.
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Stat() (*v1.Metrics, error)
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// AddProcess adds a process to a set of controllers.
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AddProcess(int, ...string) error
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// AddThread adds a process thread to a set of controllers.
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AddThread(int, ...string) error
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// Update updates the set of resources controlled, based on
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// an OCI resources description.
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Update(*specs.LinuxResources) error
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// MoveTo moves a controller to another one.
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MoveTo(string) error
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// AddDevice adds a device resource to the controller.
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AddDevice(string) error
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// RemoveDevice removes a device resource to the controller.
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RemoveDevice(string) error
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// UpdateCpuSet updates the set of controlled CPUs and memory nodes.
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UpdateCpuSet(string, string) error
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}
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