2 Stockfish, a UCI chess playing engine derived from Glaurung 2.1
3 Copyright (C) 2004-2021 The Stockfish developers (see AUTHORS file)
5 Stockfish is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 Stockfish is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 #ifndef THREAD_WIN32_OSX_H_INCLUDED
20 #define THREAD_WIN32_OSX_H_INCLUDED
24 /// On OSX threads other than the main thread are created with a reduced stack
25 /// size of 512KB by default, this is too low for deep searches, which require
26 /// somewhat more than 1MB stack, so adjust it to TH_STACK_SIZE.
27 /// The implementation calls pthread_create() with the stack size parameter
28 /// equal to the linux 8MB default, on platforms that support it.
30 #if defined(__APPLE__) || defined(__MINGW32__) || defined(__MINGW64__) || defined(USE_PTHREADS)
36 static const size_t TH_STACK_SIZE = 8 * 1024 * 1024;
38 template <class T, class P = std::pair<T*, void(T::*)()>>
39 void* start_routine(void* ptr)
41 P* p = reinterpret_cast<P*>(ptr);
42 (p->first->*(p->second))(); // Call member function pointer
52 template<class T, class P = std::pair<T*, void(T::*)()>>
53 explicit NativeThread(void(T::*fun)(), T* obj) {
54 pthread_attr_t attr_storage, *attr = &attr_storage;
55 pthread_attr_init(attr);
56 pthread_attr_setstacksize(attr, TH_STACK_SIZE);
57 pthread_create(&thread, attr, start_routine<T>, new P(obj, fun));
59 void join() { pthread_join(thread, NULL); }
62 } // namespace Stockfish
64 #else // Default case: use STL classes
68 typedef std::thread NativeThread;
70 } // namespace Stockfish
74 #endif // #ifndef THREAD_WIN32_OSX_H_INCLUDED