Alexandria  2.27.0
SDC-CH common library for the Euclid project
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
GIL.cpp
Go to the documentation of this file.
1 /*
2  * Copyright (C) 2022 Euclid Science Ground Segment
3  *
4  * This library is free software; you can redistribute it and/or modify it under
5  * the terms of the GNU Lesser General Public License as published by the Free
6  * Software Foundation; either version 3.0 of the License, or (at your option)
7  * any later version.
8  *
9  * This library is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11  * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12  * details.
13  *
14  * You should have received a copy of the GNU Lesser General Public License
15  * along with this library; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "Pyston/GIL.h"
20 
21 namespace Pyston {
22 
23 static size_t s_lock_count = 0;
24 
26  if (Py_IsInitialized()) {
27  m_state = PyGILState_Ensure();
28  ++s_lock_count;
29  }
30 }
31 
33  if (Py_IsInitialized()) {
34  PyGILState_Release(m_state);
35  }
36 }
37 
39  return s_lock_count;
40 }
41 
42 GILReleaser::GILReleaser(PyGILState_STATE& state) : m_state(state) {
43  PyGILState_Release(m_state);
44 }
45 
46 GILReleaser::GILReleaser(GILLocker& locker) : m_state(locker.m_state) {
47  PyGILState_Release(m_state);
48 }
49 
51  m_state = PyGILState_Ensure();
52  ++s_lock_count;
53 }
54 
56  m_state = PyEval_SaveThread();
57 }
58 
60  PyEval_RestoreThread(m_state);
61 }
62 
63 } // end of namespace Pyston
GILReleaser(PyGILState_STATE &state)
Definition: GIL.cpp:42
static size_t getLockCount()
Definition: GIL.cpp:38
static size_t s_lock_count
Definition: GIL.cpp:23
PyThreadState * m_state
Definition: GIL.h:64
PyGILState_STATE m_state
Definition: GIL.h:38
PyGILState_STATE & m_state
Definition: GIL.h:54