# -*- coding: utf-8 -*-
"""Example for a dynamic added custom platform.
Here Minix2 as a new distribution is added.
"""
from __future__ import absolute_import
from platformids import RTE, rte2num, num2rte, num2pretty, custom_rte_distrel2tuple, custom_dist, \
PlatformIDsUnknownError, \
RTE_OSTYPE, RTE_DIST
from platformids.custom.minix import RTE_MINIX
__author__ = 'Arno-Can Uestuensoez'
__license__ = "Artistic-License-2.0 + Forced-Fairplay-Constraints"
__copyright__ = "Copyright (C) 2019 Arno-Can Uestuensoez" \
" @Ingenieurbuero Arno-Can Uestuensoez"
__version__ = '0.0.1'
__uuid__ = "7add5ded-c39b-4b6e-8c87-1b3a1c150ee9"
RTE_MINIX2 = RTE_MINIX + custom_dist.add_enum() #: Minix2 as distrel
#: mapping of the rte string and numeric representation to the numeric value
rte2num.update(
{
'minix2': RTE_MINIX2, # dist
RTE_MINIX2: RTE_MINIX2, # dist
}
)
#: mapping of the rte numeric representation to the string value
num2rte.update(
{
RTE_MINIX2: 'minix2',
}
)
#: mapping of the rte numeric representation to the string value
num2pretty.update(
{
RTE_MINIX2: 'Minix2',
}
)
#-----------------------------------------------#
# #
# optional constants for convenience #
# #
#-----------------------------------------------#
RTE_MINIX200 = RTE_MINIX2 + 0x00000400 #: Minix-2.0.0
#: mapping of the rte string and numeric representation to the numeric value
rte2num.update(
{
'minix200': RTE_MINIX200, # distrel
RTE_MINIX200: RTE_MINIX200, # distrel
}
)
#: mapping of the rte numeric representation to the string value
num2rte.update(
{
RTE_MINIX200: 'minix200',
}
)
#: mapping of the rte numeric representation to the string value
num2pretty.update(
{
RTE_MINIX200: 'Minix-2.0.0',
}
)
[docs]def my_distrel2tuple(rte=RTE):
"""
A custom example only - standard encoding is default layout.
Convert the *Minix* specific *distrel* version layout
to a tuple.
A callback to be used by the function:
platformids.decode_rte_distrel_to_segments(rte=RTE)
Decodes the compressed *distrel* from the 32bit integer
bitmask *rte* into the corresponding tuple of integer
segments.
Args:
rte:
The comppressed runtime environment identifier bitmask.
default := RTE
Returns:
Tuple of Integer values of the encoded segments, either
as defined by the default layout, or any known as defined
by additional extended and/or custom criteria.
Raises:
pass-through
Examples:
::
decode_rte_distrel_to_segments()
=> (2, 0, 0) # on Minix-2.0.0
"""
if rte & RTE_OSTYPE != RTE_MINIX:
raise PlatformIDsUnknownError("Not Minix: rte = " + str(rte))
if rte & RTE_DIST != RTE_MINIX2:
raise PlatformIDsUnknownError("Not Minix3: rte = " + str(rte))
try:
_rte = rte2num[rte]
except KeyError:
# non-registered release
if type(_rte) is int:
# can split basically any number, let's see...
_rte = rte
else:
raise PlatformIDsUnknownError("Unknown Minix3 release rte = " + str(rte))
# here same as the default handler
return (
_rte & 0xfc00,
_rte & 0x03e0,
_rte & 0x001f,
)
#: registered callbacks for special handling of custom layout
custom_rte_distrel2tuple.update(
{
# e.g. RTE_MINIX3: parrot.platformids.my_distrel2tuple,
RTE_MINIX2: my_distrel2tuple, #: the callback to be registered
}
)