65 lines
1.4 KiB
Go
65 lines
1.4 KiB
Go
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// +build linux
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package cgroups
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import (
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"fmt"
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"github.com/opencontainers/runc/libcontainer/configs"
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)
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type Manager interface {
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// Applies cgroup configuration to the process with the specified pid
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Apply(pid int) error
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// Returns the PIDs inside the cgroup set
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GetPids() ([]int, error)
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// Returns the PIDs inside the cgroup set & all sub-cgroups
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GetAllPids() ([]int, error)
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// Returns statistics for the cgroup set
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GetStats() (*Stats, error)
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// Toggles the freezer cgroup according with specified state
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Freeze(state configs.FreezerState) error
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// Destroys the cgroup set
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Destroy() error
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// NewCgroupManager() and LoadCgroupManager() require following attributes:
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// Paths map[string]string
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// Cgroups *cgroups.Cgroup
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// Paths maps cgroup subsystem to path at which it is mounted.
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// Cgroups specifies specific cgroup settings for the various subsystems
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// Returns cgroup paths to save in a state file and to be able to
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// restore the object later.
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GetPaths() map[string]string
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// Set the cgroup as configured.
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Set(container *configs.Config) error
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}
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type NotFoundError struct {
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Subsystem string
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}
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func (e *NotFoundError) Error() string {
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return fmt.Sprintf("mountpoint for %s not found", e.Subsystem)
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}
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func NewNotFoundError(sub string) error {
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return &NotFoundError{
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Subsystem: sub,
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}
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}
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func IsNotFound(err error) bool {
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if err == nil {
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return false
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}
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_, ok := err.(*NotFoundError)
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return ok
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}
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