fscommon

Documentation

Index

• Variables
• func GetCgroupParamInt(path, file string) (int64, error)
• func GetCgroupParamString(path, file string) (string, error)
• func GetCgroupParamUint(path, file string) (uint64, error)
• func GetValueByKey(path, file, key string) (uint64, error)
• func ParseKeyValue(t string) (string, uint64, error)
• func ParseUint(s string, base, bitSize int) (uint64, error)

Variables

var (
	ErrNotValidFormat = errors.New("line is not a valid key value format")

	// Deprecated: use cgroups.OpenFile instead.
	OpenFile = cgroups.OpenFile
	// Deprecated: use cgroups.ReadFile instead.
	ReadFile = cgroups.ReadFile
	// Deprecated: use cgroups.WriteFile instead.
	WriteFile = cgroups.WriteFile
)

Functions

func GetCgroupParamInt

func GetCgroupParamInt(path, file string) (int64, error)

GetCgroupParamInt reads a single int64 value from specified cgroup file. If the value read is "max", the math.MaxInt64 is returned.

func GetCgroupParamString

func GetCgroupParamString(path, file string) (string, error)

GetCgroupParamString reads a string from the specified cgroup file.

func GetCgroupParamUint

func GetCgroupParamUint(path, file string) (uint64, error)

GetCgroupParamUint reads a single uint64 value from the specified cgroup file. If the value read is "max", the math.MaxUint64 is returned.

func GetValueByKey

func GetValueByKey(path, file, key string) (uint64, error)

GetValueByKey reads a key-value pairs from the specified cgroup file, and returns a value of the specified key. ParseUint is used for value conversion.

func ParseKeyValue

func ParseKeyValue(t string) (string, uint64, error)

ParseKeyValue parses a space-separated "name value" kind of cgroup parameter and returns its key as a string, and its value as uint64 (ParseUint is used to convert the value). For example, "io_service_bytes 1234" will be returned as "io_service_bytes", 1234.

func ParseUint

func ParseUint(s string, base, bitSize int) (uint64, error)

ParseUint converts a string to an uint64 integer. Negative values are returned at zero as, due to kernel bugs, some of the memory cgroup stats can be negative.