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BufferFS is a serialization format with CRC checking and optional byte-alignment for records. It allows storing arbitrary blobs, together with a 8-character identifier, in a contiguous buffer that supports random access. This is suitable for storing arbitrary blobs in EEPROM, but could also support other things. Signed-off-by: Martin Braun <martin.braun@ettus.com>
25 lines
594 B
Python
25 lines
594 B
Python
import mpmlog
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import bfrfs
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LOG = mpmlog.get_main_logger().getChild('log')
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B0 = bfrfs.BufferFS(b'', 256, 16, log=LOG)
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B0.set_blob('foo', b'123123123')
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B0.set_blob('baz', b'abcdabcdasdfasdf')
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print(B0.buffer)
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print(len(B0.buffer))
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LOG.warn('next foo')
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new_buf = open('eeprom.dat', 'rb').read()
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B1 = bfrfs.BufferFS(new_buf, 256, 16, log=LOG)
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print(B1.get_blob('foo'))
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print(B1.get_blob('baz'))
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LOG.warn('next foo')
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B1.set_blob('baz', b'asdfalskdfjalksdfasdfkasdfkjh')
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B1.set_blob('foo', b'asdfalskdfjalksdfasdfkasdfkjh2')
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open('eeprom.dat', 'wb').write(B1.buffer)
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print(B1.get_blob('foo'))
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