def write(self, path, buf, offset):
logging.debug("write %s, %s, %d" % (path, buf, offset))
if lmdbfs.exists(path):
st, data = lmdbfs.read_file(path)
st.st_size = len(buf)
lmdbfs.write_file(path, st, buf)
return len(buf)
return -errno.ENOENT
def truncate(self, path, size):
logging.debug("truncate %s, %d" % (path, size))
if lmdbfs.exists(path):
st, data = lmdbfs.read_file(path)
st.st_size = size
data = data[:size]
lmdbfs.write_file(path, st, data)
return 0
return -errno.ENOENT
def read(self, path, size, offset):
logging.debug("read %s, %d, %d" % (path, size, offset))
if lmdbfs.exists(path):
_, data = lmdbfs.read_file(path)
return data[offset:offset+size]
return -errno.ENOENT
def testFileExistence(self):
self.assertTrue(lmdbfs.exists('file1'))
self.assertFalse(lmdbfs.exists('file2'))
