Synnefo » snf-ganeti

from ganeti import errors

try:

  import ctypes

except ImportError:

  ctypes = None

  # By declaring this variable as a pointer to an integer we can then access

  # its value correctly, should the mlockall call fail, in order to see what

  # the actual error code was.

  libc.__errno_location.restype = _ctypes.POINTER(_ctypes.c_int)

  if libc.mlockall(_MCL_CURRENT | _MCL_FUTURE):

    logging.error("Cannot set memory lock: %s",

                  os.strerror(libc.__errno_location().contents.value))

    return