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
151
152
153
154
155
156
157
158
159
160
161
162
|
// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2019 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty 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, see <http://www.gnu.org/licenses/>.
*
*/
package cgroup
import (
"context"
"syscall"
"time"
"github.com/godbus/dbus/v5"
"github.com/snapcore/snapd/testutil"
)
var (
Cgroup2SuperMagic = cgroup2SuperMagic
ProbeCgroupVersion = probeCgroupVersion
ParsePid = parsePid
DoCreateTransientScope = doCreateTransientScope
SessionOrMaybeSystemBus = sessionOrMaybeSystemBus
ErrDBusUnknownMethod = errDBusUnknownMethod
ErrDBusNameHasNoOwner = errDBusNameHasNoOwner
ErrDBusSpawnChildExited = errDBusSpawnChildExited
SecurityTagFromCgroupPath = securityTagFromCgroupPath
ApplyToSnap = applyToSnap
KillProcessesInCgroup = killProcessesInCgroup
)
func MockFsTypeForPath(mock func(string) (int64, error)) (restore func()) {
old := fsTypeForPath
fsTypeForPath = mock
return func() {
fsTypeForPath = old
}
}
func MockRandomUUID(f func() (string, error)) func() {
old := randomUUID
randomUUID = f
return func() {
randomUUID = old
}
}
func MockOsGetuid(uid int) func() {
old := osGetuid
osGetuid = func() int {
return uid
}
return func() {
osGetuid = old
}
}
func MockOsGetpid(pid int) func() {
old := osGetpid
osGetpid = func() int {
return pid
}
return func() {
osGetpid = old
}
}
func MockCgroupProcessPathInTrackingCgroup(fn func(pid int) (string, error)) func() {
old := cgroupProcessPathInTrackingCgroup
cgroupProcessPathInTrackingCgroup = fn
return func() {
cgroupProcessPathInTrackingCgroup = old
}
}
func MockDoCreateTransientScope(fn func(conn *dbus.Conn, unitName string, pid int) error) func() {
old := doCreateTransientScope
doCreateTransientScope = fn
return func() {
doCreateTransientScope = old
}
}
func FreezerCgroupV1Dir() string { return freezerCgroupV1Dir }
func MockCreateScopeJobTimeout(d time.Duration) (restore func()) {
oldCreateScopeJobTimeout := createScopeJobTimeout
createScopeJobTimeout = d
return func() {
createScopeJobTimeout = oldCreateScopeJobTimeout
}
}
func MonitorDelete(folders []string, name string, channel chan string) error {
return currentWatcher.monitorDelete(folders, name, channel)
}
type InotifyWatcher = inotifyWatcher
func MockInotifyWatcher(ctx context.Context, obsMonitor func(w *InotifyWatcher, name string)) (restore func()) {
restore = testutil.Backup(¤tWatcher)
currentWatcher = newInotifyWatcher(ctx)
currentWatcher.observeMonitorCb = obsMonitor
return restore
}
func MockInitWatcherClose() { currentWatcher.Close() }
func (iw *inotifyWatcher) MonitoredDirs() map[string]uint {
return iw.pathList
}
func (iw *inotifyWatcher) MonitorDelete(folders []string, name string, channel chan string) error {
return iw.monitorDelete(folders, name, channel)
}
var NewInotifyWatcher = newInotifyWatcher
func MockFreezeSnapProcessesImplV1(fn func(ctx context.Context, snapName string) error) (restore func()) {
return testutil.Mock(&freezeSnapProcessesImplV1, fn)
}
func MockThawSnapProcessesImplV1(fn func(snapName string) error) (restore func()) {
return testutil.Mock(&thawSnapProcessesImplV1, fn)
}
func MockKillProcessesInCgroup(fn func(ctx context.Context, dir string, freeze func(ctx context.Context), thaw func()) error) (restore func()) {
return testutil.Mock(&killProcessesInCgroup, fn)
}
func MockSyscallKill(fn func(pid int, sig syscall.Signal) error) (restore func()) {
return testutil.Mock(&syscallKill, fn)
}
func MockOsReadFile(fn func(name string) ([]byte, error)) (restore func()) {
return testutil.Mock(&osReadFile, fn)
}
func MockMaxKillTimeout(t time.Duration) (restore func()) {
return testutil.Mock(&maxKillTimeout, t)
}
func MockKillThawCooldown(t time.Duration) (restore func()) {
return testutil.Mock(&killThawCooldown, t)
}
|
