def set_json(path, value, only_writeable_nodes=False):
path = helper.fix_string_encoding(path)
value = helper.fix_string_encoding(value)
f = _get_lib().nxLibSetJson
f.argtypes = [POINTER(c_int32), c_char_p, c_char_p, c_int32]
error_code = c_int32(0)
f(byref(error_code), path, value, only_writeable_nodes)
return error_code.value
def wait_for_string_value(path, value, wait_for_equal):
path = helper.fix_string_encoding(path)
value = helper.fix_string_encoding(value)
f = _get_lib().nxLibWaitForStringValue
f.argtypes = [POINTER(c_int32), c_char_p, c_char_p, c_int32]
error_code = c_int32(0)
f(byref(error_code), path, value, wait_for_equal)
return error_code.value
def make_unique_item(path, item_name):
path = helper.fix_string_encoding(path)
item_name = helper.fix_string_encoding(item_name)
f = _get_lib().nxLibMakeUniqueItem
f.restype = c_char_p
f.argtypes = [POINTER(c_int32), c_char_p, c_char_p]
error_code = c_int32(0)
new_path = f(byref(error_code), path, item_name)
if new_path is not None:
new_path = new_path.decode()
return new_path, error_code.value
def wait_for_type(path, awaited_type, wait_for_equal):
path = helper.fix_string_encoding(path)
f = _get_lib().nxLibWaitForType
f.argtypes = [POINTER(c_int32), c_char_p, c_int32, c_int32]
error_code = c_int32(0)
f(byref(error_code), path, awaited_type, wait_for_equal)
return error_code.value
def wait_for_change(path):
path = helper.fix_string_encoding(path)
f = _get_lib().nxLibWaitForChange
f.argtypes = [POINTER(c_int32), c_char_p]
error_code = c_int32(0)
f(byref(error_code), path)
return error_code.value
def get_binary_info(path):
path = helper.fix_string_encoding(path)
f = _get_lib().nxLibGetBinaryInfo
f.argtypes = [
POINTER(c_int32), c_char_p,
POINTER(c_int32),
POINTER(c_int32),
POINTER(c_int32),
POINTER(c_int32),
POINTER(c_int32),
POINTER(c_double)
]
error_code = c_int32(0)
width = c_int32(0)
height = c_int32(0)
channel_count = c_int32(0)
bytes_per_element = c_int32(0)
is_float = c_int32(0)
timestamp = c_double(0)
f(byref(error_code), path, byref(width), byref(height),
byref(channel_count), byref(bytes_per_element), byref(is_float),
byref(timestamp))
return (width.value, height.value, channel_count.value,
bytes_per_element.value, is_float.value == 1, timestamp.value,
error_code.value)
def set_null(path):
path = helper.fix_string_encoding(path)
f = _get_lib().nxLibSetNull
f.argtypes = [POINTER(c_int32), c_char_p]
error_code = c_int32(0)
f(byref(error_code), path)
return error_code.value
def set_binary(path, buffer, buffer_size):
path = helper.fix_string_encoding(path)
f = _get_lib().nxLibSetBinary
f.argtypes = [POINTER(c_int32), c_char_p, POINTER(c_void_p), c_int32]
buffer = cast(buffer, POINTER(c_void_p))
error_code = c_int32(0)
f(byref(error_code), path, buffer, buffer_size)
return error_code.value
def connect(hostname, port):
if not _lib_is_remote():
raise NxLibError("Cannot use connect function from a normal NxLib.")
hostname = helper.fix_string_encoding(hostname)
return_code = c_int32(0)
f = _get_lib().nxLibConnect
f.argtypes = [POINTER(c_int32), c_char_p, c_int32]
f(byref(return_code), hostname, port)
check_return_code(return_code.value)
def get_json(path, pretty_print, number_precision, scientific_number_format):
path = helper.fix_string_encoding(path)
f = _get_lib().nxLibGetJson
f.restype = c_char_p
f.argtypes = [POINTER(c_int32), c_char_p, c_int32, c_int32, c_int32]
error_code = c_int32(0)
result = f(byref(error_code), path, pretty_print, number_precision,
scientific_number_format)
if result is not None:
result = result.decode()
return result, error_code.value
def set_binary_formatted(path, buffer, width, height, channel_count,
bytes_per_element, is_float):
path = helper.fix_string_encoding(path)
f = _get_lib().nxLibSetBinaryFormatted
f.argtypes = [
POINTER(c_int32), c_char_p,
POINTER(c_void_p), c_int32, c_int32, c_int32, c_int32, c_int32
]
buffer = cast(buffer, POINTER(c_void_p))
error_code = c_int32(0)
f(byref(error_code), path, buffer, width, height, channel_count,
bytes_per_element, is_float)
return error_code.value
def get_binary(path, destination_buffer, buffer_size):
path = helper.fix_string_encoding(path)
f = _get_lib().nxLibGetBinary
f.argtypes = [
POINTER(c_int32), c_char_p,
POINTER(c_void_p), c_int32,
POINTER(c_int32),
POINTER(c_double)
]
error_code = c_int32(0)
destination_buffer = cast(destination_buffer, POINTER(c_void_p))
# destination_buffer = c_void_p(buffer_size) #(c_ubyte * buffer_size)()
bytes_copied = c_int32(0)
timestamp = c_double(0)
f(byref(error_code), path, destination_buffer, buffer_size,
byref(bytes_copied), byref(timestamp))
return bytes_copied.value, timestamp.value, error_code.value
def _get(f, path):
path = helper.fix_string_encoding(path)
error_code = c_int32(0)
result = f(byref(error_code), path)
return result, error_code.value
def set_string(path, value):
value = helper.fix_string_encoding(value)
f = _get_lib().nxLibSetString
f.argtypes = [POINTER(c_int32), c_char_p, c_char_p]
return _set(f, path, value)
def _set(f, path, value):
path = helper.fix_string_encoding(path)
error_code = c_int32(0)
f(byref(error_code), path, value)
return error_code.value
