package sched

import "gvisor.dev/gvisor/pkg/sentry/kernel/sched"

Package sched implements scheduler related features.

Index ¶

• func CPUSetSize(num uint) uint
• type CPUSet
• func NewCPUSet(num uint) CPUSet
• func NewFullCPUSet(num uint) CPUSet
• func (c *CPUSet) ClearAbove(cpu uint)
• func (c CPUSet) Copy() CPUSet
• func (c CPUSet) ForEachCPU(fn func(uint))
• func (c CPUSet) NumCPUs() uint
• func (c *CPUSet) Set(cpu uint)
• func (c CPUSet) Size() uint

Functions ¶

func CPUSetSize ¶

func CPUSetSize(num uint) uint

CPUSetSize returns the size in bytes of a CPUSet that can contain num cpus.

Types ¶

type CPUSet ¶

type CPUSet []byte

CPUSet contains a bitmap to record CPU information.

Note that this definition is only correct for little-endian architectures, since Linux's cpumask_t uses unsigned long.

func NewCPUSet ¶

func NewCPUSet(num uint) CPUSet

NewCPUSet returns a CPUSet for the given number of CPUs which initially contains no CPUs.

func NewFullCPUSet ¶

func NewFullCPUSet(num uint) CPUSet

NewFullCPUSet returns a CPUSet for the given number of CPUs, all of which are present in the set.

func (*CPUSet) ClearAbove ¶

func (c *CPUSet) ClearAbove(cpu uint)

ClearAbove clears bits corresponding to cpu and all higher cpus.

func (CPUSet) Copy ¶

func (c CPUSet) Copy() CPUSet

Copy returns a copy of the CPUSet.

func (CPUSet) ForEachCPU ¶

func (c CPUSet) ForEachCPU(fn func(uint))

ForEachCPU iterates over the CPUSet and calls fn with the cpu index if it's set.

func (CPUSet) NumCPUs ¶

func (c CPUSet) NumCPUs() uint

NumCPUs returns how many cpus are set in the CPUSet.

func (*CPUSet) Set ¶

func (c *CPUSet) Set(cpu uint)

Set sets the bit corresponding to cpu.

func (CPUSet) Size ¶

func (c CPUSet) Size() uint

Size returns the size of 'c' in bytes.

Source Files ¶

cpuset.go sched.go