blob: 24535153d109f5c85d23ce6167f84a52de11ed0a (
plain)
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
163
164
165
166
167
|
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_CHROMEOS_CROS_CROS_LIBRARY_H_
#define CHROME_BROWSER_CHROMEOS_CROS_CROS_LIBRARY_H_
#pragma once
#include <string>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
namespace base {
template <typename T> struct DefaultLazyInstanceTraits;
}
namespace chromeos {
class BurnLibrary;
class CertLibrary;
class CryptohomeLibrary;
class LibraryLoader;
class NetworkLibrary;
class ScreenLockLibrary;
// This class handles access to sub-parts of ChromeOS library. it provides
// a level of indirection so individual libraries that it exposes can
// be mocked for testing.
class CrosLibrary {
public:
// This class provides access to internal members of CrosLibrary class for
// purpose of testing (i.e. replacement of members' implementation with
// mock objects).
class TestApi {
public:
// Resets the stub implementation of the library and loads libcros.
// Used by tests that need to run with libcros (i.e. on a device).
void ResetUseStubImpl();
// Passing true for own for these setters will cause them to be deleted
// when the CrosLibrary is deleted (or other mocks are set).
// Setter for LibraryLoader.
void SetLibraryLoader(LibraryLoader* loader, bool own);
void SetCertLibrary(CertLibrary* library, bool own);
void SetBurnLibrary(BurnLibrary* library, bool own);
void SetCryptohomeLibrary(CryptohomeLibrary* library, bool own);
void SetNetworkLibrary(NetworkLibrary* library, bool own);
void SetScreenLockLibrary(ScreenLockLibrary* library, bool own);
private:
friend class CrosLibrary;
explicit TestApi(CrosLibrary* library) : library_(library) {}
CrosLibrary* library_;
};
// Sets the global instance. Must be called before any calls to Get().
static void Initialize(bool use_stub);
// Destroys the global instance. Must be called before AtExitManager is
// destroyed to ensure a clean shutdown.
static void Shutdown();
// Gets the global instance. Returns NULL if Initialize() has not been
// called (or Shutdown() has been called).
static CrosLibrary* Get();
BurnLibrary* GetBurnLibrary();
CertLibrary* GetCertLibrary();
CryptohomeLibrary* GetCryptohomeLibrary();
NetworkLibrary* GetNetworkLibrary();
ScreenLockLibrary* GetScreenLockLibrary();
// Getter for Test API that gives access to internal members of this class.
TestApi* GetTestApi();
bool libcros_loaded() { return libcros_loaded_; }
// Returns an unlocalized string describing the last load error (if any).
const std::string& load_error_string() {
return load_error_string_;
}
private:
friend struct base::DefaultLazyInstanceTraits<chromeos::CrosLibrary>;
friend class CrosLibrary::TestApi;
explicit CrosLibrary(bool use_stub);
virtual ~CrosLibrary();
bool LoadLibcros();
LibraryLoader* library_loader_;
bool own_library_loader_;
// This template supports the creation, setting and optional deletion of
// the cros libraries.
template <class L>
class Library {
public:
Library() : library_(NULL), own_(true) {}
~Library() {
if (own_)
delete library_;
}
L* GetDefaultImpl(bool use_stub_impl) {
if (!library_) {
own_ = true;
library_ = L::GetImpl(use_stub_impl);
}
return library_;
}
void SetImpl(L* library, bool own) {
if (library != library_) {
if (own_)
delete library_;
library_ = library;
own_ = own;
}
}
private:
L* library_;
bool own_;
};
Library<BurnLibrary> burn_lib_;
Library<CertLibrary> cert_lib_;
Library<CryptohomeLibrary> crypto_lib_;
Library<NetworkLibrary> network_lib_;
Library<ScreenLockLibrary> screen_lock_lib_;
// Stub implementations of the libraries should be used.
bool use_stub_impl_;
// True if libcros was successfully loaded.
bool libcros_loaded_;
// True if the last load attempt had an error.
bool load_error_;
// Contains the error string from the last load attempt.
std::string load_error_string_;
scoped_ptr<TestApi> test_api_;
DISALLOW_COPY_AND_ASSIGN(CrosLibrary);
};
// The class is used for enabling the stub libcros, and cleaning it up at
// the end of the object lifetime. Useful for testing.
class ScopedStubCrosEnabler {
public:
ScopedStubCrosEnabler() {
chromeos::CrosLibrary::Initialize(true);
}
~ScopedStubCrosEnabler() {
chromeos::CrosLibrary::Shutdown();
}
private:
DISALLOW_COPY_AND_ASSIGN(ScopedStubCrosEnabler);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_CROS_CROS_LIBRARY_H_
|
