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class CustomBitsetType(object):
INT_BITS = 64 - 1
def __init__(self):
self.data = {}
def get_bit(self, index):
key, bit_pos = divmod(index, CustomBitsetType.INT_BITS)
if key not in self.data:
return False
return bool(self.data[key] & 1<<bit_pos)
def set_bit(self, index, bit_value):
key, bit_pos = divmod(index, CustomBitsetType.INT_BITS)
if key not in self.data:
if bit_value:
self.data[key] = 1 << bit_pos
return
if bit_value:
self.data[key] = self.data[key] | 1<<bit_pos
return
value = self.data[key] & ~(1 << bit_pos)
if value > 0:
self.data[key] = value
else:
self.data.pop(key)
def on_setattr(self, key, old, new):
old = old or 0
new = new or 0
for i in range(CustomBitsetType.INT_BITS):
in_old = old & 1 << i > 0
in_new = new & 1 << i > 0
if in_old != in_new:
self.on_set_bit(key * CustomBitsetType.INT_BITS + i, in_old, in_new)
def on_set_bit(self, index, old, new):
self.set_bit(index, new)
bitset = CustomBitsetType()
remote_bitset = CustomBitsetType()
print("[local]", bitset.get_bit(12))
print("[local]", bitset.set_bit(12, True))
print("[local]", bitset.get_bit(12))
print("=========================")
for k, v in bitset.data.items():
remote_bitset.on_setattr(k, 0, v)
print("[remote]", remote_bitset.get_bit(11))
print("[remote]", remote_bitset.get_bit(12))
print(bitset.data, remote_bitset.data)
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