def checkVolumeEmpty(volumeId,
host=GLUSTER_VOL_HOST,
port=GLUSTER_VOL_PORT,
protocol=GLUSTER_VOL_PROTOCOL):
data = ctypes.POINTER(DirentStruct)()
fs = glfsInit(volumeId, host, port, protocol)
fd = _glfs_opendir(fs, "/")
if fd is None:
glfsFini(fs, volumeId)
raise ge.GlusterVolumeEmptyCheckFailedException(
err=['glfs_opendir() failed'])
entry = "."
flag = False
while entry in [".", "..", ".trashcan"]:
data = _glfs_readdir(fd)
if data is None:
glfsFini(fs, volumeId)
raise ge.GlusterVolumeEmptyCheckFailedException(
err=['glfs_readdir() failed'])
# When there are no more entries in directory _glfs_readdir()
# will return a null pointer. bool of null pointer will be false
# Using this to conclude that no more entries in volume.
if not bool(data):
flag = True
break
entry = data.contents.d_name
else:
flag = False
glfsFini(fs, volumeId)
return flag
def volumeEmptyCheck(volumeName, host=GLUSTER_VOL_HOST,
port=GLUSTER_VOL_PORT,
protocol=GLUSTER_VOL_PROTOCOL):
module = "gluster.gfapi"
command = [sys.executable, '-m', module, '-v', volumeName,
'-p', str(port), '-H', host, '-t', protocol, '-c', 'readdir']
# to include /usr/share/vdsm in python path
env = os.environ.copy()
env['PYTHONPATH'] = "%s:%s" % (
env.get("PYTHONPATH", ""), constants.P_VDSM)
env['PYTHONPATH'] = ":".join(map(os.path.abspath,
env['PYTHONPATH'].split(":")))
rc, out, err = commands.execCmd(command, raw=True, env=env)
if rc != 0:
raise ge.GlusterVolumeEmptyCheckFailedException(rc, [out], [err])
return out.upper() == "TRUE"
