本文整理汇总了Golang中github.com/docker/libcontainer/cgroups.PathExists函数的典型用法代码示例。如果您正苦于以下问题：Golang PathExists函数的具体用法？Golang PathExists怎么用？Golang PathExists使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了PathExists函数的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: Freeze
// Freeze toggles the container's freezer cgroup depending on the state
// provided
func (m *Manager) Freeze(state configs.FreezerState) error {
d, err := getCgroupData(m.Cgroups, 0)
if err != nil {
return err
}
dir, err := d.path("freezer")
if err != nil {
return err
}
if !cgroups.PathExists(dir) {
return cgroups.NewNotFoundError("freezer")
}
prevState := m.Cgroups.Freezer
m.Cgroups.Freezer = state
freezer := subsystems["freezer"]
err = freezer.Set(dir, m.Cgroups)
if err != nil {
m.Cgroups.Freezer = prevState
return err
}
return nil
}示例2: Set
func (m *Manager) Set(container *configs.Config) error {
for name, path := range m.Paths {
sys, ok := subsystems[name]
if !ok || !cgroups.PathExists(path) {
continue
}
if err := sys.Set(path, container.Cgroups); err != nil {
return err
}
}
return nil
}示例3: GetStats
func (m *Manager) GetStats() (*cgroups.Stats, error) {
stats := cgroups.NewStats()
for name, path := range m.Paths {
sys, ok := subsystems[name]
if !ok || !cgroups.PathExists(path) {
continue
}
if err := sys.GetStats(path, stats); err != nil {
return nil, err
}
}
return stats, nil
}示例4: GetStats
func GetStats(systemPaths map[string]string) (*cgroups.Stats, error) {
stats := cgroups.NewStats()
for name, path := range systemPaths {
sys, ok := subsystems[name]
if !ok || !cgroups.PathExists(path) {
continue
}
if err := sys.GetStats(path, stats); err != nil {
return nil, err
}
}
return stats, nil
}示例5: GetPids
func (m *Manager) GetPids() ([]int, error) {
d, err := getCgroupData(m.Cgroups, 0)
if err != nil {
return nil, err
}
dir, err := d.path("devices")
if err != nil {
return nil, err
}
if !cgroups.PathExists(dir) {
return nil, cgroups.NewNotFoundError("devices")
}
return cgroups.ReadProcsFile(dir)
}示例6: Apply
func (m *Manager) Apply(pid int) error {
if m.Cgroups == nil {
return nil
}
d, err := getCgroupData(m.Cgroups, pid)
if err != nil {
return err
}
paths := make(map[string]string)
defer func() {
if err != nil {
cgroups.RemovePaths(paths)
}
}()
for name, sys := range subsystems {
if err := sys.Apply(d); err != nil {
return err
}
// TODO: Apply should, ideally, be reentrant or be broken up into a separate
// create and join phase so that the cgroup hierarchy for a container can be
// created then join consists of writing the process pids to cgroup.procs
p, err := d.path(name)
if err != nil {
return err
}
if !cgroups.PathExists(p) {
continue
}
paths[name] = p
}
m.Paths = paths
return nil
}