def __init__(self, iterable, *, shared_memory_context):
self.shared_memory_context = shared_memory_context
if isinstance(iterable, (list, tuple)):
# Skip creation of short-lived duplicate list.
shared_array = SharedNDArray.copy(np.array(iterable))
else:
shared_array = SharedNDArray.copy(np.array(list(iterable)))
self.allocated_size = -1 # TODO: overallocate more than needed
self.replace_held_shared_array(shared_array, destroy_old=False)
def insert(self, position, value):
arr_of_one = np.array([value], dtype=self.array.dtype)
shared_array = SharedNDArray.copy(
np.concatenate(
[self.array[:position], arr_of_one, self.array[position:]]))
self.allocated_size = -1 # TODO: overallocate more than needed
self.replace_held_shared_array(shared_array)
def pop(self, position=None):
# TODO: implement use of position
retval = self.array[-1]
# TODO: fix problem when shrinking to length of 0
shared_array = SharedNDArray.copy(self.array[:-1])
self.allocated_size = -1 # TODO: overallocate more than needed
self.replace_held_shared_array(shared_array)
return retval
def remove(self, value):
position = self.index(value)
shared_array = SharedNDArray.copy(
np.concatenate([self.array[:position], self.array[position + 1:]]))
self.allocated_size = -1 # TODO: overallocate more than needed
self.replace_held_shared_array(shared_array)
def extend(self, values):
arr_of_multiple = np.array(values, dtype=self.array.dtype)
shared_array = SharedNDArray.copy(
np.concatenate([self.array, arr_of_multiple]))
self.allocated_size = -1 # TODO: overallocate more than needed
self.replace_held_shared_array(shared_array)
def clear(self):
shared_array = SharedNDArray.copy(np.array([], dtype=self.array.dtype))
self.allocated_size = -1 # TODO: overallocate more than needed
self.replace_held_shared_array(shared_array)
def append(self, value):
arr_of_one = np.array([value], dtype=self.array.dtype)
shared_array = SharedNDArray.copy(
np.concatenate([self.array, arr_of_one]))
self.allocated_size = -1 # TODO: overallocate more than needed
self.replace_held_shared_array(shared_array)
def attach_object(self):
"Attach to existing object in shared memory segment."
self.shared_array = SharedNDArray(*(self._callmethod('_getstate')))