1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
# swap.py
# Device format classes for anaconda's storage configuration module.
#
# Copyright (C) 2009 Red Hat, Inc.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details. You should have received a copy of the
# GNU General Public License along with this program; if not, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the
# source code or documentation are not subject to the GNU General Public
# License and may only be used or replicated with the express permission of
# Red Hat, Inc.
#
# Red Hat Author(s): Dave Lehman <dlehman@redhat.com>
#
from iutil import log_method_call, numeric_type
from parted import PARTITION_SWAP
from ..errors import *
from ..devicelibs import swap
from . import DeviceFormat, register_device_format
import gettext
_ = lambda x: gettext.ldgettext("anaconda", x)
import logging
log = logging.getLogger("storage")
class SwapSpace(DeviceFormat):
""" Swap space """
_type = "swap"
_name = None
_udevTypes = ["swap"]
partedFlag = PARTITION_SWAP
_formattable = True # can be formatted
_supported = True # is supported
_linuxNative = True # for clearpart
def __init__(self, *args, **kwargs):
""" Create a SwapSpace instance.
Keyword Arguments:
device -- path to the underlying device
uuid -- this swap space's uuid
label -- this swap space's label
priority -- this swap space's priority
exists -- indicates whether this is an existing format
"""
log_method_call(self, *args, **kwargs)
DeviceFormat.__init__(self, *args, **kwargs)
self.priority = kwargs.get("priority")
self.label = kwargs.get("label")
def _setPriority(self, priority):
if priority is None:
self._priority = None
return
if not isinstance(priority, int) or not 0 <= priority <= 32767:
raise ValueError("swap priority must be an integer between 0 and 32767")
self._priority = priority
def _getPriority(self):
return self._priority
priority = property(_getPriority, _setPriority,
doc="The priority of the swap device")
def _getOptions(self):
opts = ""
if self.priority is not None:
opts += "pri=%d" % self.priority
return opts
def _setOptions(self, opts):
if not opts:
self.priority = None
return
for option in opts.split(","):
(opt, equals, arg) = option.partition("=")
if equals and opt == "pri":
try:
self.priority = int(arg)
except ValueError:
log.info("invalid value for swap priority: %s" % arg)
options = property(_getOptions, _setOptions,
doc="The swap device's fstab options string")
@property
def status(self):
""" Device status. """
return self.exists and swap.swapstatus(self.device)
def setup(self, *args, **kwargs):
""" Open, or set up, a device. """
log_method_call(self, device=self.device,
type=self.type, status=self.status)
if not self.exists:
raise SwapSpaceError("format has not been created")
if self.status:
return
DeviceFormat.setup(self, *args, **kwargs)
swap.swapon(self.device, priority=self.priority)
def teardown(self, *args, **kwargs):
""" Close, or tear down, a device. """
log_method_call(self, device=self.device,
type=self.type, status=self.status)
if not self.exists:
raise SwapSpaceError("format has not been created")
if self.status:
swap.swapoff(self.device)
def create(self, *args, **kwargs):
""" Create the device. """
log_method_call(self, device=self.device,
type=self.type, status=self.status)
if self.exists:
raise SwapSpaceError("format already exists")
if self.status:
raise SwapSpaceError("device exists and is active")
DeviceFormat.create(self, *args, **kwargs)
swap.mkswap(self.device, label=self.label)
self.exists = True
def writeKS(self, f):
f.write("swap")
register_device_format(SwapSpace)
|
