37 lines
1.1 KiB
Python
37 lines
1.1 KiB
Python
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#
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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#
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import struct
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class Packer:
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def read(self, n): abstract
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def write(self, s): abstract
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def unpack(self, fmt):
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values = struct.unpack(fmt, self.read(struct.calcsize(fmt)))
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if len(values) == 1:
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return values[0]
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else:
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return values
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def pack(self, fmt, *args):
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self.write(struct.pack(fmt, *args))
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