import collections
import threading
[docs]class ThreadLocalStack(threading.local, collections.Sequence):
def __init__(self, maxsize=None):
super().__init__()
self.maxsize = maxsize
self._context = []
def __len__(self):
return len(self._context)
def __getitem__(self, i):
return self._context[i]
def append(self, item):
if self.maxsize is not None and len(self) >= self.maxsize:
raise RuntimeError("Stack limit exceeded.")
self._context.append(item)
def pop(self):
return self._context.pop()
def clear(self):
self._context[:] = []
