2 Stockfish, a UCI chess playing engine derived from Glaurung 2.1
3 Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
4 Copyright (C) 2008-2014 Marco Costalba, Joona Kiiski, Tord Romstad
6 Stockfish is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 Stockfish is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #ifndef PLATFORM_H_INCLUDED
21 #define PLATFORM_H_INCLUDED
25 // Disable some silly and noisy warnings from MSVC compiler
26 #pragma warning(disable: 4127) // Conditional expression is constant
27 #pragma warning(disable: 4146) // Unary minus operator applied to unsigned type
28 #pragma warning(disable: 4800) // Forcing value to bool 'true' or 'false'
29 #pragma warning(disable: 4996) // Function _ftime() may be unsafe
31 // MSVC does not support <inttypes.h>
32 typedef signed __int8 int8_t;
33 typedef unsigned __int8 uint8_t;
34 typedef signed __int16 int16_t;
35 typedef unsigned __int16 uint16_t;
36 typedef signed __int32 int32_t;
37 typedef unsigned __int32 uint32_t;
38 typedef signed __int64 int64_t;
39 typedef unsigned __int64 uint64_t;
42 # include <inttypes.h>
45 #ifndef _WIN32 // Linux - Unix
47 # include <sys/time.h>
49 inline int64_t system_time_to_msec() {
51 gettimeofday(&t, NULL);
52 return t.tv_sec * 1000LL + t.tv_usec / 1000;
56 typedef pthread_mutex_t Lock;
57 typedef pthread_cond_t WaitCondition;
58 typedef pthread_t NativeHandle;
59 typedef void*(*pt_start_fn)(void*);
61 # define lock_init(x) pthread_mutex_init(&(x), NULL)
62 # define lock_grab(x) pthread_mutex_lock(&(x))
63 # define lock_release(x) pthread_mutex_unlock(&(x))
64 # define lock_destroy(x) pthread_mutex_destroy(&(x))
65 # define cond_destroy(x) pthread_cond_destroy(&(x))
66 # define cond_init(x) pthread_cond_init(&(x), NULL)
67 # define cond_signal(x) pthread_cond_signal(&(x))
68 # define cond_wait(x,y) pthread_cond_wait(&(x),&(y))
69 # define cond_timedwait(x,y,z) pthread_cond_timedwait(&(x),&(y),z)
70 # define thread_create(x,f,t) pthread_create(&(x),NULL,(pt_start_fn)f,t)
71 # define thread_join(x) pthread_join(x, NULL)
73 #else // Windows and MinGW
75 # include <sys/timeb.h>
77 inline int64_t system_time_to_msec() {
80 return t.time * 1000LL + t.millitm;
84 # define NOMINMAX // disable macros min() and max()
87 #define WIN32_LEAN_AND_MEAN
89 #undef WIN32_LEAN_AND_MEAN
92 // We use critical sections on Windows to support Windows XP and older versions.
93 // Unfortunately, cond_wait() is racy between lock_release() and WaitForSingleObject()
94 // but apart from this they have the same speed performance of SRW locks.
95 typedef CRITICAL_SECTION Lock;
96 typedef HANDLE WaitCondition;
97 typedef HANDLE NativeHandle;
99 // On Windows 95 and 98 parameter lpThreadId may not be null
100 inline DWORD* dwWin9xKludge() { static DWORD dw; return &dw; }
102 # define lock_init(x) InitializeCriticalSection(&(x))
103 # define lock_grab(x) EnterCriticalSection(&(x))
104 # define lock_release(x) LeaveCriticalSection(&(x))
105 # define lock_destroy(x) DeleteCriticalSection(&(x))
106 # define cond_init(x) { x = CreateEvent(0, FALSE, FALSE, 0); }
107 # define cond_destroy(x) CloseHandle(x)
108 # define cond_signal(x) SetEvent(x)
109 # define cond_wait(x,y) { lock_release(y); WaitForSingleObject(x, INFINITE); lock_grab(y); }
110 # define cond_timedwait(x,y,z) { lock_release(y); WaitForSingleObject(x,z); lock_grab(y); }
111 # define thread_create(x,f,t) (x = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)f,t,0,dwWin9xKludge()))
112 # define thread_join(x) { WaitForSingleObject(x, INFINITE); CloseHandle(x); }
116 #endif // #ifndef PLATFORM_H_INCLUDED