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moby--moby/graphdriver/devmapper/sys.go
2013-11-28 21:16:32 -08:00

57 lines
1.3 KiB
Go

// +build linux
package devmapper
import (
"os"
"os/exec"
"syscall"
)
type (
sysStatT syscall.Stat_t
sysErrno syscall.Errno
osFile struct{ *os.File }
)
var (
sysMount = syscall.Mount
sysUnmount = syscall.Unmount
sysCloseOnExec = syscall.CloseOnExec
sysSyscall = syscall.Syscall
osOpenFile = func(name string, flag int, perm os.FileMode) (*osFile, error) {
f, err := os.OpenFile(name, flag, perm)
return &osFile{File: f}, err
}
osOpen = func(name string) (*osFile, error) { f, err := os.Open(name); return &osFile{File: f}, err }
osNewFile = os.NewFile
osCreate = os.Create
osStat = os.Stat
osIsNotExist = os.IsNotExist
osIsExist = os.IsExist
osMkdirAll = os.MkdirAll
osRemoveAll = os.RemoveAll
osRename = os.Rename
osReadlink = os.Readlink
execRun = func(name string, args ...string) error { return exec.Command(name, args...).Run() }
)
const (
sysMsMgcVal = syscall.MS_MGC_VAL
sysMsRdOnly = syscall.MS_RDONLY
sysEInval = syscall.EINVAL
sysSysIoctl = syscall.SYS_IOCTL
sysEBusy = syscall.EBUSY
osORdOnly = os.O_RDONLY
osORdWr = os.O_RDWR
osOCreate = os.O_CREATE
osModeDevice = os.ModeDevice
)
func toSysStatT(i interface{}) *sysStatT {
return (*sysStatT)(i.(*syscall.Stat_t))
}