Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
+ Copyright (C) 2015-2020 Marco Costalba, Joona Kiiski, Gary Linscott, 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
#define MISC_H_INCLUDED
#include <cassert>
+#include <chrono>
#include <ostream>
#include <string>
#include <vector>
#include "types.h"
const std::string engine_info(bool to_uci = false);
-void timed_wait(WaitCondition&, Lock&, int);
-void prefetch(char* addr);
-void start_logger(bool b);
+const std::string compiler_info();
+void prefetch(void* addr);
+void start_logger(const std::string& fname);
+void* aligned_ttmem_alloc(size_t size, void*& mem);
void dbg_hit_on(bool b);
void dbg_hit_on(bool c, bool b);
void dbg_mean_of(int v);
void dbg_print();
+typedef std::chrono::milliseconds::rep TimePoint; // A value in milliseconds
-namespace Time {
- typedef int64_t point;
- inline point now() { return system_time_to_msec(); }
-}
+static_assert(sizeof(TimePoint) == sizeof(int64_t), "TimePoint should be 64 bits");
+inline TimePoint now() {
+ return std::chrono::duration_cast<std::chrono::milliseconds>
+ (std::chrono::steady_clock::now().time_since_epoch()).count();
+}
template<class Entry, int Size>
struct HashTable {
- HashTable() : table(Size, Entry()) {}
Entry* operator[](Key key) { return &table[(uint32_t)key & (Size - 1)]; }
private:
- std::vector<Entry> table;
+ std::vector<Entry> table = std::vector<Entry>(Size); // Allocate on the heap
};
#define sync_cout std::cout << IO_LOCK
#define sync_endl std::endl << IO_UNLOCK
+namespace Utility {
+
+/// Clamp a value between lo and hi. Available in c++17.
+template<class T> constexpr const T& clamp(const T& v, const T& lo, const T& hi) {
+ return v < lo ? lo : v > hi ? hi : v;
+}
+
+}
/// xorshift64star Pseudo-Random Number Generator
/// This class is based on original code written and dedicated
{ return T(rand64() & rand64() & rand64()); }
};
+
+/// Under Windows it is not possible for a process to run on more than one
+/// logical processor group. This usually means to be limited to use max 64
+/// cores. To overcome this, some special platform specific API should be
+/// called to set group affinity for each thread. Original code from Texel by
+/// Peter Ă–sterlund.
+
+namespace WinProcGroup {
+ void bindThisThread(size_t idx);
+}
+
#endif // #ifndef MISC_H_INCLUDED