system

Documentation

Index

• Variables
• func LUtimesNano(path string, ts []syscall.Timespec) error
• func Lgetxattr(path string, attr string) ([]byte, error)
• func Lsetxattr(path string, attr string, data []byte, flags int) error
• func Mkdev(major int64, minor int64) uint32
• func MkdirAll(path string, perm os.FileMode) error
• func Mknod(path string, mode uint32, dev int) error
• func Umask(newmask int) (oldmask int, err error)
• func UtimesNano(path string, ts []syscall.Timespec) error
• type MemInfo
  • func ReadMemInfo() (*MemInfo, error)
• type Stat_t
  • func FromStatT(s *syscall.Stat_t) (*Stat_t, error)
  • func Lstat(path string) (*Stat_t, error)
  • func Stat(path string) (*Stat_t, error)
  • func (s Stat_t) GetLastModification() syscall.Timespec
  • func (s Stat_t) Gid() uint32
  • func (s Stat_t) Mode() uint32
  • func (s Stat_t) Mtim() syscall.Timespec
  • func (s Stat_t) Rdev() uint64
  • func (s Stat_t) Size() int64
  • func (s Stat_t) Uid() uint32

Variables

var (
	ErrMalformed = errors.New("malformed file")
)

var (
	ErrNotSupportedPlatform = errors.New("platform and architecture is not supported")
)

Functions

func LUtimesNano

func LUtimesNano(path string, ts []syscall.Timespec) error

func Lgetxattr

func Lgetxattr(path string, attr string) ([]byte, error)

Returns a nil slice and nil error if the xattr is not set

func Lsetxattr

func Lsetxattr(path string, attr string, data []byte, flags int) error

func Mkdev

func Mkdev(major int64, minor int64) uint32

Linux device nodes are a bit weird due to backwards compat with 16 bit device nodes. They are, from low to high: the lower 8 bits of the minor, then 12 bits of the major, then the top 12 bits of the minor

func MkdirAll

func MkdirAll(path string, perm os.FileMode) error

func Mknod

func Mknod(path string, mode uint32, dev int) error

Mknod creates a filesystem node (file, device special file or named pipe) named path with attributes specified by mode and dev

func Umask

func Umask(newmask int) (oldmask int, err error)

func UtimesNano

func UtimesNano(path string, ts []syscall.Timespec) error

Types

type MemInfo

type MemInfo struct {
	// Total usable RAM (i.e. physical RAM minus a few reserved bits and the
	// kernel binary code).
	MemTotal int64

	// Amount of free memory.
	MemFree int64

	// Total amount of swap space available.
	SwapTotal int64

	// Amount of swap space that is currently unused.
	SwapFree int64
}

MemInfo contains memory statistics of the host system.

func ReadMemInfo

func ReadMemInfo() (*MemInfo, error)

ReadMemInfo retrieves memory statistics of the host system and returns a

MemInfo type.

type Stat_t

type Stat_t struct {
	// contains filtered or unexported fields
}

Stat_t type contains status of a file. It contains metadata like permission, owner, group, size, etc about a file

func FromStatT

func FromStatT(s *syscall.Stat_t) (*Stat_t, error)

FromStatT exists only on linux, and loads a system.Stat_t from a syscal.Stat_t.

func Lstat

func Lstat(path string) (*Stat_t, error)

Lstat takes a path to a file and returns a system.Stat_t type pertaining to that file.

Throws an error if the file does not exist

func Stat

func Stat(path string) (*Stat_t, error)

Stat takes a path to a file and returns a system.Stat_t type pertaining to that file.

Throws an error if the file does not exist

func (Stat_t) GetLastModification

func (s Stat_t) GetLastModification() syscall.Timespec

func (Stat_t) Gid

func (s Stat_t) Gid() uint32

func (Stat_t) Mode

func (s Stat_t) Mode() uint32

func (Stat_t) Mtim

func (s Stat_t) Mtim() syscall.Timespec

func (Stat_t) Rdev

func (s Stat_t) Rdev() uint64

func (Stat_t) Size

func (s Stat_t) Size() int64

func (Stat_t) Uid

func (s Stat_t) Uid() uint32