1 | |
2 | // |
3 | // This source file is part of appleseed. |
4 | // Visit http://appleseedhq.net/ for additional information and resources. |
5 | // |
6 | // This software is released under the MIT license. |
7 | // |
8 | // Copyright (c) 2012-2013 Esteban Tovagliari, Jupiter Jazz Limited |
9 | // Copyright (c) 2014-2017 Esteban Tovagliari, The appleseedhq Organization |
10 | // |
11 | // Permission is hereby granted, free of charge, to any person obtaining a copy |
12 | // of this software and associated documentation files (the "Software"), to deal |
13 | // in the Software without restriction, including without limitation the rights |
14 | // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
15 | // copies of the Software, and to permit persons to whom the Software is |
16 | // furnished to do so, subject to the following conditions: |
17 | // |
18 | // The above copyright notice and this permission notice shall be included in |
19 | // all copies or substantial portions of the Software. |
20 | // |
21 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
22 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
23 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
24 | // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
25 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
26 | // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
27 | // THE SOFTWARE. |
28 | // |
29 | |
30 | #ifndef APPLESEED_PYTHON_GILLOCKS_H |
31 | #define APPLESEED_PYTHON_GILLOCKS_H |
32 | |
33 | // appleseed.python headers. |
34 | #include "pyseed.h" // has to be first, to avoid redefinition warnings |
35 | |
36 | // appleseed.foundation headers. |
37 | #include "foundation/core/concepts/noncopyable.h" |
38 | |
39 | // This class locks Python's Global interpreter lock on construction |
40 | // and unlocks it on destruction. A classic lock. |
41 | class ScopedGILLock |
42 | : public foundation::NonCopyable |
43 | { |
44 | public: |
45 | ScopedGILLock(); |
46 | ~ScopedGILLock(); |
47 | |
48 | private: |
49 | bool m_threads_initialized; |
50 | PyGILState_STATE m_state; |
51 | }; |
52 | |
53 | // This class unlocks Python's Global interpreter lock on construction |
54 | // and locks it on destruction. An inverted lock -> unlock. |
55 | class ScopedGILUnlock |
56 | : public foundation::NonCopyable |
57 | { |
58 | public: |
59 | ScopedGILUnlock(); |
60 | ~ScopedGILUnlock(); |
61 | |
62 | private: |
63 | bool m_threads_initialized; |
64 | PyThreadState* m_state; |
65 | }; |
66 | |
67 | #endif // !APPLESEED_PYTHON_GILLOCKS_H |
68 | |