229 lines
7.2 KiB
Python
229 lines
7.2 KiB
Python
# Copyright (c) 2005 The Regents of The University of Michigan
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Nathan Binkert
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# metric prefixes
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exa = 1.0e18
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peta = 1.0e15
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tera = 1.0e12
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giga = 1.0e9
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mega = 1.0e6
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kilo = 1.0e3
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milli = 1.0e-3
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micro = 1.0e-6
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nano = 1.0e-9
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pico = 1.0e-12
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femto = 1.0e-15
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atto = 1.0e-18
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# power of 2 prefixes
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kibi = 1024
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mebi = kibi * 1024
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gibi = mebi * 1024
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tebi = gibi * 1024
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pebi = tebi * 1024
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exbi = pebi * 1024
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# memory size configuration stuff
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def toFloat(value):
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if not isinstance(value, str):
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raise TypeError, "wrong type '%s' should be str" % type(value)
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if value.endswith('Ei'):
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return float(value[:-2]) * exbi
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elif value.endswith('Pi'):
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return float(value[:-2]) * pebi
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elif value.endswith('Ti'):
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return float(value[:-2]) * tebi
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elif value.endswith('Gi'):
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return float(value[:-2]) * gibi
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elif value.endswith('Mi'):
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return float(value[:-2]) * mebi
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elif value.endswith('ki'):
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return float(value[:-2]) * kibi
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elif value.endswith('E'):
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return float(value[:-1]) * exa
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elif value.endswith('P'):
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return float(value[:-1]) * peta
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elif value.endswith('T'):
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return float(value[:-1]) * tera
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elif value.endswith('G'):
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return float(value[:-1]) * giga
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elif value.endswith('M'):
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return float(value[:-1]) * mega
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elif value.endswith('k'):
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return float(value[:-1]) * kilo
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elif value.endswith('m'):
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return float(value[:-1]) * milli
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elif value.endswith('u'):
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return float(value[:-1]) * micro
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elif value.endswith('n'):
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return float(value[:-1]) * nano
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elif value.endswith('p'):
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return float(value[:-1]) * pico
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elif value.endswith('f'):
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return float(value[:-1]) * femto
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else:
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return float(value)
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def toInteger(value):
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value = toFloat(value)
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result = long(value)
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if value != result:
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raise ValueError, "cannot convert '%s' to integer" % value
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return result
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_bool_dict = {
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'true' : True, 't' : True, 'yes' : True, 'y' : True, '1' : True,
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'false' : False, 'f' : False, 'no' : False, 'n' : False, '0' : False
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}
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def toBool(value):
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if not isinstance(value, str):
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raise TypeError, "wrong type '%s' should be str" % type(value)
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value = value.lower()
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result = _bool_dict.get(value, None)
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if result == None:
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raise ValueError, "cannot convert '%s' to bool" % value
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return result
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def toFrequency(value):
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if not isinstance(value, str):
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raise TypeError, "wrong type '%s' should be str" % type(value)
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if value.endswith('THz'):
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return float(value[:-3]) * tera
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elif value.endswith('GHz'):
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return float(value[:-3]) * giga
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elif value.endswith('MHz'):
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return float(value[:-3]) * mega
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elif value.endswith('kHz'):
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return float(value[:-3]) * kilo
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elif value.endswith('Hz'):
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return float(value[:-2])
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raise ValueError, "cannot convert '%s' to frequency" % value
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def toLatency(value):
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if not isinstance(value, str):
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raise TypeError, "wrong type '%s' should be str" % type(value)
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if value.endswith('ps'):
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return float(value[:-2]) * pico
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elif value.endswith('ns'):
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return float(value[:-2]) * nano
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elif value.endswith('us'):
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return float(value[:-2]) * micro
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elif value.endswith('ms'):
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return float(value[:-2]) * milli
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elif value.endswith('s'):
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return float(value[:-1])
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raise ValueError, "cannot convert '%s' to latency" % value
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def toClockPeriod(value):
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"""result is a clock period"""
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if not isinstance(value, str):
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raise TypeError, "wrong type '%s' should be str" % type(value)
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try:
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val = toFrequency(value)
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if val != 0:
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val = 1 / val
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return val
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except ValueError:
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pass
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try:
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val = toLatency(value)
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return val
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except ValueError:
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pass
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raise ValueError, "cannot convert '%s' to clock period" % value
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def toNetworkBandwidth(value):
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if not isinstance(value, str):
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raise TypeError, "wrong type '%s' should be str" % type(value)
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if value.endswith('Tbps'):
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return float(value[:-4]) * tera
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elif value.endswith('Gbps'):
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return float(value[:-4]) * giga
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elif value.endswith('Mbps'):
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return float(value[:-4]) * mega
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elif value.endswith('kbps'):
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return float(value[:-4]) * kilo
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elif value.endswith('bps'):
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return float(value[:-3])
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else:
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return float(value)
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raise ValueError, "cannot convert '%s' to network bandwidth" % value
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def toMemoryBandwidth(value):
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if not isinstance(value, str):
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raise TypeError, "wrong type '%s' should be str" % type(value)
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if value.endswith('PB/s'):
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return float(value[:-4]) * pebi
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elif value.endswith('TB/s'):
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return float(value[:-4]) * tebi
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elif value.endswith('GB/s'):
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return float(value[:-4]) * gibi
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elif value.endswith('MB/s'):
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return float(value[:-4]) * mebi
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elif value.endswith('kB/s'):
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return float(value[:-4]) * kibi
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elif value.endswith('B/s'):
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return float(value[:-3])
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raise ValueError, "cannot convert '%s' to memory bandwidth" % value
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def toMemorySize(value):
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if not isinstance(value, str):
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raise TypeError, "wrong type '%s' should be str" % type(value)
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if value.endswith('PB'):
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return long(value[:-2]) * pebi
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elif value.endswith('TB'):
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return long(value[:-2]) * tebi
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elif value.endswith('GB'):
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return long(value[:-2]) * gibi
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elif value.endswith('MB'):
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return long(value[:-2]) * mebi
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elif value.endswith('kB'):
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return long(value[:-2]) * kibi
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elif value.endswith('B'):
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return long(value[:-1])
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raise ValueError, "cannot convert '%s' to memory size" % value
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