def KVSWatchWrapper(key, value, arg, errnum):
(cb, real_arg) = ffi.from_handle(arg)
if errnum == errno.ENOENT:
value = None
else:
value = json.loads(ffi.string(value))
key = ffi.string(key)
ret = cb(key, value, real_arg, errnum)
return ret if ret is not None else 0
def get_key_direct(flux_handle, key):
valp = ffi.new('char *[1]')
_raw.get(flux_handle, key, valp)
if valp[0] == ffi.NULL:
return None
else:
return json.loads(ffi.string(valp[0]))
def watch_once(flux_handle, key):
""" Watches the selected key until the next change, then returns the updated value of the key """
if isdir(flux_handle, key):
d = get_dir(flux_handle)
# The wrapper automatically unpacks d's handle
_raw.watch_once_dir(flux_handle, d)
return d
else:
out_json_str = ffi.new('char *[1]')
_raw.watch_once(flux_handle, key, out_json_str)
if out_json_str[0] == ffi.NULL:
return None
else:
return json.loads(ffi.string(out_json_str[0]))
def KVSWatchWrapper(key, value, arg, errnum):
(cb, real_arg) = ffi.from_handle(arg)
ret = cb(ffi.string(key), json.loads(ffi.string(value)), real_arg, errnum)
return ret if ret is not None else 0
def __next__(self):
ret = _raw.kvsitr_next(self.itr)
if ret is None or ret == ffi.NULL:
raise StopIteration()
return ffi.string(ret)
def key_at(self, key):
c_str = self.pimpl.key_at(key)
p_str = ffi.string(c_str)
lib.free(c_str)
return p_str
def __next__(self):
ret = _raw.kvsitr_next(self.itr)
if ret is None or ret == ffi.NULL:
raise StopIteration()
return ffi.string(ret)
def key_at(self, key):
c_str = self.pimpl.key_at(key)
p_str = ffi.string(c_str)
lib.free(c_str)
return p_str
