def write(self, data, offset=None):
if offset is None:
offset = self.offset
off = 0
with self.lock:
offs = self.offset
if offset is not None:
offs = offset
if len(data) == 0:
resp = self._dorpc(fcall.Twrite(offset=offs, data=data))
while off < len(data):
n = min(len(data), self.iounit)
resp = self._dorpc(
fcall.Twrite(offset=offs, data=data[off:off + n]))
off += resp.count
offs += resp.count
if resp.count < n:
break
if offset is None:
self.offset = offs
return off
def next(resp=None, exc=None, tb=None):
if resp:
ctxt['off'] += resp.count
ctxt['offset'] += resp.count
if ctxt['off'] < len(data) or not (exc or resp):
n = min(len(data), self.iounit)
self._dorpc(
fcall.Twrite(offset=ctxt['offset'],
data=data[ctxt['off']:ctxt['off'] + n]), next,
fail or callback)
else:
if offset is None:
self.offset = ctxt['offset']
self.respond(callback, ctxt['off'], exc, tb)