Golang dm_task_get_deps Examples

Example #1

File: devmapper_wrapper.go Project: NERSC/docker

func dmTaskGetDepsFct(task *CDmTask) *Deps {
	Cdeps := C.dm_task_get_deps((*C.struct_dm_task)(task))
	if Cdeps == nil {
		return nil
	}
	deps := &Deps{
		Count:  uint32(Cdeps.count),
		Filler: uint32(Cdeps.filler),
	}
	for _, device := range Cdeps.device {
		deps.Device = append(deps.Device, (uint64)(device))
	}
	return deps
}

Example #2

File: devmapper_wrapper.go Project: CadeLaRen/docker-3

func dmTaskGetDepsFct(task *cdmTask) *Deps {
	Cdeps := C.dm_task_get_deps((*C.struct_dm_task)(task))
	if Cdeps == nil {
		return nil
	}

	// golang issue: https://github.com/golang/go/issues/11925
	hdr := reflect.SliceHeader{
		Data: uintptr(unsafe.Pointer(uintptr(unsafe.Pointer(Cdeps)) + unsafe.Sizeof(*Cdeps))),
		Len:  int(Cdeps.count),
		Cap:  int(Cdeps.count),
	}
	devices := *(*[]C.uint64_t)(unsafe.Pointer(&hdr))

	deps := &Deps{
		Count:  uint32(Cdeps.count),
		Filler: uint32(Cdeps.filler),
	}
	for _, device := range devices {
		deps.Device = append(deps.Device, uint64(device))
	}
	return deps
}