cgroup

Documentation

Overview

Package cgroup holds cgroup related files

Index

• type Event
• type Listener
• type Resolver
  • func NewResolver(tagsResolver tags.Resolver) (*Resolver, error)
  • func (cr *Resolver) AddPID(process *model.ProcessCacheEntry)
  • func (cr *Resolver) DelPID(pid uint32)
  • func (cr *Resolver) DelPIDWithID(id string, pid uint32)
  • func (cr *Resolver) GetWorkload(id string) (*cgroupModel.CacheEntry, bool)
  • func (cr *Resolver) Len() int
  • func (cr *Resolver) RegisterListener(event Event, listener Listener) error
  • func (cr *Resolver) Start(ctx context.Context)

Types

type Event

type Event int

Event defines the cgroup event type

const (
	// WorkloadSelectorResolved is used to notify that a new cgroup with a resolved workload selector is ready
	WorkloadSelectorResolved Event = iota
	// CGroupDeleted is used to notify that a cgroup was deleted
	CGroupDeleted
	// CGroupMaxEvent is used cap the event ID
	CGroupMaxEvent
)

type Listener

type Listener func(workload *cgroupModel.CacheEntry)

Listener is used to propagate CGroup events

type Resolver

type Resolver struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

Resolver defines a cgroup monitor

func NewResolver

func NewResolver(tagsResolver tags.Resolver) (*Resolver, error)

NewResolver returns a new cgroups monitor

func (*Resolver) AddPID

func (cr *Resolver) AddPID(process *model.ProcessCacheEntry)

AddPID associates a container id and a pid which is expected to be the pid 1

func (*Resolver) DelPID

func (cr *Resolver) DelPID(pid uint32)

DelPID removes a PID from the cgroup resolver

func (*Resolver) DelPIDWithID

func (cr *Resolver) DelPIDWithID(id string, pid uint32)

DelPIDWithID removes a PID from the cgroup cache entry referenced by the provided ID

func (*Resolver) GetWorkload

func (cr *Resolver) GetWorkload(id string) (*cgroupModel.CacheEntry, bool)

GetWorkload returns the workload referenced by the provided ID

func (*Resolver) Len

func (cr *Resolver) Len() int

Len return the number of entries

func (*Resolver) RegisterListener

func (cr *Resolver) RegisterListener(event Event, listener Listener) error

RegisterListener registers a CGroup event listener

func (*Resolver) Start

func (cr *Resolver) Start(ctx context.Context)

Start starts the goroutine of the SBOM resolver