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moby--moby/pkg/system/stat_unix.go

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// +build !windows
package system
import "syscall"
// StatT type contains status of a file. It contains metadata
// like permission, owner, group, size, etc about a file.
type StatT struct {
mode uint32
uid uint32
gid uint32
rdev uint64
size int64
mtim syscall.Timespec
}
// Mode returns file's permission mode.
func (s StatT) Mode() uint32 {
return s.mode
}
// UID returns file's user id of owner.
func (s StatT) UID() uint32 {
return s.uid
}
// GID returns file's group id of owner.
func (s StatT) GID() uint32 {
return s.gid
}
// Rdev returns file's device ID (if it's special file).
func (s StatT) Rdev() uint64 {
return s.rdev
}
// Size returns file's size.
func (s StatT) Size() int64 {
return s.size
}
// Mtim returns file's last modification time.
func (s StatT) Mtim() syscall.Timespec {
return s.mtim
}
// Stat 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 Stat(path string) (*StatT, error) {
s := &syscall.Stat_t{}
if err := syscall.Stat(path, s); err != nil {
return nil, err
}
return fromStatT(s)
}