fscommon

package
v1.0.0-rc93 Latest Latest
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Published: Feb 3, 2021 License: Apache-2.0 Imports: 11 Imported by: 11

Documentation

Index

Constants

This section is empty.

Variables

View Source
var (
	ErrNotValidFormat = errors.New("line is not a valid key value format")
)
View Source
var (
	// Set to true by fs unit tests
	TestMode bool
)

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 GetCgroupParamKeyValue

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

GetCgroupParamKeyValue parses a space-separated "name value" kind of cgroup parameter and returns its components. For example, "io_service_bytes 1234" will return as "io_service_bytes", 1234.

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 OpenFile

func OpenFile(dir, file string, flags int) (*os.File, error)

OpenFile opens a cgroup file in a given dir with given flags. It is supposed to be used for cgroup files only.

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.

func ReadFile

func ReadFile(dir, file string) (string, error)

ReadFile reads data from a cgroup file in dir. It is supposed to be used for cgroup files only.

func WriteFile

func WriteFile(dir, file, data string) error

WriteFile writes data to a cgroup file in dir. It is supposed to be used for cgroup files only.

Types

This section is empty.

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