Ressurrect hashfull patch

[stockfish] / src / platform.h

diff --git a/src/platform.h b/src/platform.h
index 26c3abfbb820d8bf999e7999b8214a7523c1689c..47c0b117a5a9f35337fbf5a0cee1248599feb7c5 100644 (file)
--- a/src/platform.h
+++ b/src/platform.h
@@ -1,7 +1,7 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
-  Copyright (C) 2008-2012 Marco Costalba, Joona Kiiski, Tord Romstad
+  Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +17,12 @@
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#if !defined(PLATFORM_H_INCLUDED)
+#ifndef PLATFORM_H_INCLUDED
 #define PLATFORM_H_INCLUDED
 
-#if defined(_MSC_VER)
+#ifdef _MSC_VER
 
-// Disable some silly and noisy warning from MSVC compiler
+// Disable some silly and noisy warnings from MSVC compiler
 #pragma warning(disable: 4127) // Conditional expression is constant
 #pragma warning(disable: 4146) // Unary minus operator applied to unsigned type
 #pragma warning(disable: 4800) // Forcing value to bool 'true' or 'false'
@@ -42,19 +42,21 @@ typedef unsigned __int64 uint64_t;
 #  include <inttypes.h>
 #endif
 
-#if !defined(_WIN32) && !defined(_WIN64) // Linux - Unix
+#ifndef _WIN32 // Linux - Unix
 
 #  include <sys/time.h>
-typedef timeval sys_time_t;
 
-inline void system_time(sys_time_t* t) { gettimeofday(t, NULL); }
-inline uint64_t time_to_msec(const sys_time_t& t) { return t.tv_sec * 1000LL + t.tv_usec / 1000; }
+inline int64_t system_time_to_msec() {
+  timeval t;
+  gettimeofday(&t, NULL);
+  return t.tv_sec * 1000LL + t.tv_usec / 1000;
+}
 
 #  include <pthread.h>
 typedef pthread_mutex_t Lock;
 typedef pthread_cond_t WaitCondition;
-typedef pthread_t ThreadHandle;
-typedef void*(*start_fn)(void*);
+typedef pthread_t NativeHandle;
+typedef void*(*pt_start_fn)(void*);
 
 #  define lock_init(x) pthread_mutex_init(&(x), NULL)
 #  define lock_grab(x) pthread_mutex_lock(&(x))
@@ -65,18 +67,20 @@ typedef void*(*start_fn)(void*);
 #  define cond_signal(x) pthread_cond_signal(&(x))
 #  define cond_wait(x,y) pthread_cond_wait(&(x),&(y))
 #  define cond_timedwait(x,y,z) pthread_cond_timedwait(&(x),&(y),z)
-#  define thread_create(x,f,id) !pthread_create(&(x),NULL,(start_fn)f,&(id))
+#  define thread_create(x,f,t) pthread_create(&(x),NULL,(pt_start_fn)f,t)
 #  define thread_join(x) pthread_join(x, NULL)
 
 #else // Windows and MinGW
 
 #  include <sys/timeb.h>
-typedef _timeb sys_time_t;
 
-inline void system_time(sys_time_t* t) { _ftime(t); }
-inline uint64_t time_to_msec(const sys_time_t& t) { return t.time * 1000LL + t.millitm; }
+inline int64_t system_time_to_msec() {
+  _timeb t;
+  _ftime(&t);
+  return t.time * 1000LL + t.millitm;
+}
 
-#if !defined(NOMINMAX)
+#ifndef NOMINMAX
 #  define NOMINMAX // disable macros min() and max()
 #endif
 
@@ -85,12 +89,15 @@ inline uint64_t time_to_msec(const sys_time_t& t) { return t.time * 1000LL + t.m
 #undef WIN32_LEAN_AND_MEAN
 #undef NOMINMAX
 
-// We use critical sections on Windows to support Windows XP and older versions,
-// unfortunatly cond_wait() is racy between lock_release() and WaitForSingleObject()
+// We use critical sections on Windows to support Windows XP and older versions.
+// Unfortunately, cond_wait() is racy between lock_release() and WaitForSingleObject()
 // but apart from this they have the same speed performance of SRW locks.
 typedef CRITICAL_SECTION Lock;
 typedef HANDLE WaitCondition;
-typedef HANDLE ThreadHandle;
+typedef HANDLE NativeHandle;
+
+// On Windows 95 and 98 parameter lpThreadId may not be null
+inline DWORD* dwWin9xKludge() { static DWORD dw; return &dw; }
 
 #  define lock_init(x) InitializeCriticalSection(&(x))
 #  define lock_grab(x) EnterCriticalSection(&(x))
@@ -101,9 +108,9 @@ typedef HANDLE ThreadHandle;
 #  define cond_signal(x) SetEvent(x)
 #  define cond_wait(x,y) { lock_release(y); WaitForSingleObject(x, INFINITE); lock_grab(y); }
 #  define cond_timedwait(x,y,z) { lock_release(y); WaitForSingleObject(x,z); lock_grab(y); }
-#  define thread_create(x,f,id) (x = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)f,&(id),0,NULL), x != NULL)
+#  define thread_create(x,f,t) (x = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)f,t,0,dwWin9xKludge()))
 #  define thread_join(x) { WaitForSingleObject(x, INFINITE); CloseHandle(x); }
 
 #endif
 
-#endif // !defined(PLATFORM_H_INCLUDED)
+#endif // #ifndef PLATFORM_H_INCLUDED