Python dm_node_from_name示例

示例#1

文件： __init__.py 项目： MusaSakizci/yali-family

    def notifyKernel(self):
        if not self.device:
            return

        if self.device.startswith("/dev/mapper/"):
            try:
                name = devicemapper.dm_node_from_name(os.path.basename(self.device))
            except Exception, e:
                ctx.logger.warning("failed to get dm node for %s" % self.device)
                return

示例#2

文件： partition.py 项目： Tayyib/uludag

    def updateSysfsPath(self):
        """ Update this device's sysfs path. """
        if not self.parents:
            self.sysfsPath = ''

        elif self.parents[0]._devDir == "/dev/mapper":
            dm_node = devicemapper.dm_node_from_name(self.name)
            path = os.path.join("/sys", self.sysfsBlockDir, dm_node)
            self.sysfsPath = os.path.realpath(path)[4:]

        else:
            Device.updateSysfsPath(self)

示例#3

    def notifyKernel(self):
        if not self.device:
            return

        if self.device.startswith("/dev/mapper/"):
            try:
                name = devicemapper.dm_node_from_name(
                    os.path.basename(self.device))
            except Exception, e:
                ctx.logger.warning("failed to get dm node for %s" %
                                   self.device)
                return

示例#4

    def updateSysfsPath(self):
        """ Update this device's sysfs path. """
        if not self.parents:
            self.sysfsPath = ''

        elif self.parents[0]._devDir == "/dev/mapper":
            dm_node = devicemapper.dm_node_from_name(self.name)
            path = os.path.join("/sys", self.sysfsBlockDir, dm_node)
            self.sysfsPath = os.path.realpath(path)[4:]

        else:
            Device.updateSysfsPath(self)

示例#5

文件： swap.py 项目： MusaSakizci/yali-family

def swap_status(device):
    alt_dev = None
    if device.startswith("/dev/mapper/"):
        # get the real device node for device-mapper devices since the ones
        # with meaningful names are just symlinks
        try:
            alt_dev = "/dev/%s" % devicemapper.dm_node_from_name(device.split("/")[-1])
        except devicemapper.DeviceMapperError:
            alt_dev = None

    lines = open("/proc/swaps").readlines()
    status = False
    for line in lines:
        if not line.strip():
            continue

        swap_dev = line.split()[0]
        if swap_dev in [device, alt_dev]:
            status = True
            break

    return status

示例#6

文件： swap.py 项目： pars-linux/uludag

def swap_status(device):
    alt_dev = None
    if device.startswith("/dev/mapper/"):
        # get the real device node for device-mapper devices since the ones
        # with meaningful names are just symlinks
        try:
            alt_dev = "/dev/%s" % devicemapper.dm_node_from_name(
                device.split("/")[-1])
        except devicemapper.DeviceMapperError:
            alt_dev = None

    lines = open("/proc/swaps").readlines()
    status = False
    for line in lines:
        if not line.strip():
            continue

        swap_dev = line.split()[0]
        if swap_dev in [device, alt_dev]:
            status = True
            break

    return status

示例#7

文件： devicemapper.py 项目： Tayyib/uludag

    def getDMNode(self):
        """ Return the dm-X (eg: dm-0) device node for this device. """
        if not self.exists:
            raise DeviceError("device has not been created", self.name)

        return devicemapper.dm_node_from_name(self.name)

示例#8

    def getDMNode(self):
        """ Return the dm-X (eg: dm-0) device node for this device. """
        if not self.exists:
            raise DeviceMapperError("device has not been created", self.name)

        return devicemapper.dm_node_from_name(self.name)