package system

import "github.com/docker/docker/pkg/system"

Index ¶

• Constants
• Variables
• func CheckSystemDriveAndRemoveDriveLetter(path string) (string, error)
• func Chtimes(name string, atime time.Time, mtime time.Time) error
• func GetExitCode(err error) (int, error)
• func IsAbs(path string) bool
• 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 MkdirAllWithACL(path string, perm os.FileMode) error
• func Mknod(path string, mode uint32, dev int) error
• func ProcessExitCode(err error) (exitCode int)
• func Umask(newmask int) (oldmask int, err error)
• type MemInfo
• func ReadMemInfo() (*MemInfo, error)
• type StatT
• func Lstat(path string) (*StatT, error)
• func (s StatT) GID() uint32
• func (s StatT) GetLastModification() syscall.Timespec
• func (s StatT) Mode() uint32
• func (s StatT) Mtim() syscall.Timespec
• func (s StatT) Rdev() uint64
• func (s StatT) Size() int64
• func (s StatT) UID() uint32

Constants ¶

const DefaultPathEnv = "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

DefaultPathEnv is unix style list of directories to search for executables. Each directory is separated from the next by a colon ':' character .

Variables ¶

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

Functions ¶

func CheckSystemDriveAndRemoveDriveLetter ¶

func CheckSystemDriveAndRemoveDriveLetter(path string) (string, error)

CheckSystemDriveAndRemoveDriveLetter verifies that a path, if it includes a drive letter, is the system drive. This is a no-op on Linux.

func Chtimes ¶

func Chtimes(name string, atime time.Time, mtime time.Time) error

Chtimes changes the access time and modified time of a file at the given path

func GetExitCode ¶

func GetExitCode(err error) (int, error)

GetExitCode returns the ExitStatus of the specified error if its type is exec.ExitError, returns 0 and an error otherwise.

func IsAbs ¶

func IsAbs(path string) bool

IsAbs is a platform-specific wrapper for filepath.IsAbs.

func LUtimesNano ¶

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

LUtimesNano is only supported on linux and freebsd.

func Lgetxattr ¶

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

Lgetxattr is not supported on platforms other than linux.

func Lsetxattr ¶

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

Lsetxattr is not supported on platforms other than linux.

func Mkdev ¶

func Mkdev(major int64, minor int64) uint32

Mkdev is used to build the value of linux devices (in /dev/) which specifies major and minor number of the newly created device special file. 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

MkdirAll creates a directory named path along with any necessary parents, with permission specified by attribute perm for all dir created.

func MkdirAllWithACL ¶

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

MkdirAllWithACL is a wrapper for MkdirAll that creates a directory ACL'd for Builtin Administrators and Local System.

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 ProcessExitCode ¶

func ProcessExitCode(err error) (exitCode int)

ProcessExitCode process the specified error and returns the exit status code if the error was of type exec.ExitError, returns nothing otherwise.

func Umask ¶

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

Umask sets current process's file mode creation mask to newmask and returns oldmask.

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 is not supported on platforms other than linux and windows.

type StatT ¶

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

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

func Lstat ¶

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

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

Throws an error if the file does not exist

func (StatT) GID ¶

func (s StatT) GID() uint32

GID returns file's group id of owner.

func (StatT) GetLastModification ¶

func (s StatT) GetLastModification() syscall.Timespec

GetLastModification returns file's last modification time.

func (StatT) Mode ¶

func (s StatT) Mode() uint32

Mode returns file's permission mode.

func (StatT) Mtim ¶

func (s StatT) Mtim() syscall.Timespec

Mtim returns file's last modification time.

func (StatT) Rdev ¶

func (s StatT) Rdev() uint64

Rdev returns file's device ID (if it's special file).

func (StatT) Size ¶

func (s StatT) Size() int64

Size returns file's size.

func (StatT) UID ¶

func (s StatT) UID() uint32

UID returns file's user id of owner.

Source Files ¶

chtimes.go chtimes_unix.go errors.go exitcode.go filesys.go lstat.go meminfo.go meminfo_unsupported.go mknod.go path_unix.go stat.go stat_unsupported.go umask.go utimes_unsupported.go xattrs_unsupported.go