def __open_remote_file(
self,
path,
mode='r',
buf=-1,
):
"""Request the current leader to open the active session for
file with supplied path.
"""
if -1 != buf:
raise IOError('buffered reads are not supported!')
# TODO: eliminate need for CREATE in storage code - WRITE
# should be enough!
if mode.startswith('w'):
self.session_type = 'CREATE'
distbase.open_session(path, self.session_type)
distbase.close_session(path, self.session_type)
self.session_type = 'WRITE'
else:
# TODO: handle other modes like 'a', "r+"?
self.session_type = 'READ'
return distbase.open_session(path, self.session_type)
def __close_remote_file(self, path):
"""Tell the current leader to close the active session for
file with supplied path.
"""
return distbase.close_session(path, self.session_type)
