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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef PPAPI_SHARED_IMPL_PPAPI_GLOBALS_H_ | 5 #ifndef PPAPI_SHARED_IMPL_PPAPI_GLOBALS_H_ |
6 #define PPAPI_SHARED_IMPL_PPAPI_GLOBALS_H_ | 6 #define PPAPI_SHARED_IMPL_PPAPI_GLOBALS_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
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42 // This constructor is to be used only for making a PpapiGlobal for testing | 42 // This constructor is to be used only for making a PpapiGlobal for testing |
43 // purposes. This avoids setting the global static ppapi_globals_. For unit | 43 // purposes. This avoids setting the global static ppapi_globals_. For unit |
44 // tests that use this feature, the "test" PpapiGlobals should be constructed | 44 // tests that use this feature, the "test" PpapiGlobals should be constructed |
45 // using this method. See SetPpapiGlobalsOnThreadForTest for more information. | 45 // using this method. See SetPpapiGlobalsOnThreadForTest for more information. |
46 struct PerThreadForTest {}; | 46 struct PerThreadForTest {}; |
47 explicit PpapiGlobals(PerThreadForTest); | 47 explicit PpapiGlobals(PerThreadForTest); |
48 | 48 |
49 virtual ~PpapiGlobals(); | 49 virtual ~PpapiGlobals(); |
50 | 50 |
51 // Getter for the global singleton. | 51 // Getter for the global singleton. |
52 inline static PpapiGlobals* Get() { | 52 static PpapiGlobals* Get(); |
53 if (ppapi_globals_) | |
54 return ppapi_globals_; | |
55 // In unit tests, the following might be valid (see | |
56 // SetPpapiGlobalsOnThreadForTest). Normally, this will just return NULL. | |
57 return GetThreadLocalPointer(); | |
58 } | |
59 | 53 |
60 // This allows us to set a given PpapiGlobals object as the PpapiGlobals for | 54 // This allows us to set a given PpapiGlobals object as the PpapiGlobals for |
61 // a given thread. After setting the PpapiGlobals for a thread, Get() will | 55 // a given thread. After setting the PpapiGlobals for a thread, Get() will |
62 // return that PpapiGlobals when Get() is called on that thread. Other threads | 56 // return that PpapiGlobals when Get() is called on that thread. Other threads |
63 // are unaffected. This allows us to have tests which use >1 PpapiGlobals in | 57 // are unaffected. This allows us to have tests which use >1 PpapiGlobals in |
64 // the same process, e.g. for having 1 thread emulate the "host" and 1 thread | 58 // the same process, e.g. for having 1 thread emulate the "host" and 1 thread |
65 // emulate the "plugin". | 59 // emulate the "plugin". |
66 // | 60 // |
67 // PpapiGlobals object must have been constructed using the "PerThreadForTest" | 61 // PpapiGlobals object must have been constructed using the "PerThreadForTest" |
68 // parameter. | 62 // parameter. |
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130 | 124 |
131 virtual bool IsHostGlobals() const; | 125 virtual bool IsHostGlobals() const; |
132 virtual bool IsPluginGlobals() const; | 126 virtual bool IsPluginGlobals() const; |
133 | 127 |
134 private: | 128 private: |
135 // Return the thread-local pointer which is used only for unit testing. It | 129 // Return the thread-local pointer which is used only for unit testing. It |
136 // should always be NULL when running in production. It allows separate | 130 // should always be NULL when running in production. It allows separate |
137 // threads to have distinct "globals". | 131 // threads to have distinct "globals". |
138 static PpapiGlobals* GetThreadLocalPointer(); | 132 static PpapiGlobals* GetThreadLocalPointer(); |
139 | 133 |
140 static PpapiGlobals* ppapi_globals_; | |
141 | |
142 scoped_refptr<base::MessageLoopProxy> main_loop_proxy_; | 134 scoped_refptr<base::MessageLoopProxy> main_loop_proxy_; |
143 | 135 |
144 DISALLOW_COPY_AND_ASSIGN(PpapiGlobals); | 136 DISALLOW_COPY_AND_ASSIGN(PpapiGlobals); |
145 }; | 137 }; |
146 | 138 |
147 } // namespace ppapi | 139 } // namespace ppapi |
148 | 140 |
149 #endif // PPAPI_SHARED_IMPL_PPAPI_GLOBALS_H_ | 141 #endif // PPAPI_SHARED_IMPL_PPAPI_GLOBALS_H_ |
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