63 lines
2.2 KiB
Python
63 lines
2.2 KiB
Python
#
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# Copyright 2013 Nick Foster
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#
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# This file is part of gr-air-modes
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#
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# gr-air-modes is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3, or (at your option)
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# any later version.
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#
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# gr-air-modes is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with gr-air-modes; see the file COPYING. If not, write to
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# the Free Software Foundation, Inc., 51 Franklin Street,
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# Boston, MA 02110-1301, USA.
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#
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from collections import namedtuple
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#this is a timestamp that preserves precision when used with UTC timestamps
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#ordinary double-precision timestamp would lose significant fractional precision
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#when the mantissa is as large as necessary for UTC timestamps.
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class stamp:
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def __init__(self, secs, frac_secs):
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self.secs = secs
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self.frac_secs = frac_secs
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def __lt__(self, other):
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if self.secs == other.secs:
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return self.frac_secs < other.frac_secs
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else:
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return self.secs < other.secs
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def __gt__(self, other):
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if self.secs == other.secs:
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return self.frac_secs > other.frac_secs
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else:
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return self.secs > other.secs
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def __eq__(self, other):
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if isinstance(other, self.__class__):
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return self.secs == other.secs and self.frac_secs == other.frac_secs
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elif isinstance(other, float):
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return float(self) == other
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else:
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raise TypeError
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def __ne__(self, other):
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return self.secs != other.secs or self.frac_secs != other.frac_secs
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def __le__(self, other):
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return (self == other) or (self < other)
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def __ge__(self, other):
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return (self == other) or (self > other)
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#to ensure we don't hash by stamp
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__hash__ = None
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#good to within ms for comparison
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def __float__(self):
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return self.secs + self.frac_secs
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modes_report = namedtuple('modes_report', ['data', 'ecc', 'reference', 'timestamp'])
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