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functions: added cpulist_unpack built-in function

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Usage:

[variables]
cpus = ${f:cpulist_unpack:1,2,3-5}

The 'cpus' will be set to '1,2,3,4,5'. Also the built-in function can take
arbitrary number of arguments which will be concatenated, e.g.:

[variables]
cpus = ${f:cpulist_unpack:1-3,5:6-7,9}

This means two arguments to 'cpulist_unpack' function. The first argument:
'1-3,5' and the second '6-7,9'. The result: '1,2,3,5,6,7,9'.

Also renamed internal function 'unpack_cpulist' to 'cpulist_unpack' to be
more consistent.

Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
This commit is contained in:
Jaroslav Škarvada 2015-06-08 13:44:48 +02:00
parent a6f4fca71d
commit b7981e7b5e
2 changed files with 22 additions and 3 deletions
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19
tuned/profiles/functions/function_cpulist_unpack.py Normal file
View file

@ -0,0 +1,19 @@
import os
import tuned.logs
import base
from tuned.utils.commands import commands
log = tuned.logs.get()
class cpulist_unpack(base.Function):
"""
Conversion function: unpacks CPU list in form 1-3,4 to 1,2,3,4
"""
def __init__(self):
# arbitrary number of arguments
super(self.__class__, self).__init__("cpulist_unpack", 0)
def execute(self, args):
if not super(self.__class__, self).execute(args):
return None
return ",".join(str(v) for v in self._cmd.cpulist_unpack(",".join(args)))

6
tuned/utils/commands.py
View file

@ -136,7 +136,7 @@ class commands:
return cpus
# Unpacks CPU list, i.e. 1-3 will be converted to 1, 2, 3
def unpack_cpulist(self, l):
def cpulist_unpack(self, l):
rl = []
if l is None:
return l
@ -157,10 +157,10 @@ class commands:
if l is None:
return None
m = 0
ul = self.unpack_cpulist(l)
ul = self.cpulist_unpack(l)
if ul is None:
return None
for v in self.unpack_cpulist(l):
for v in ul:
m |= pow(2, v)
return "0x%08x" % m