X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=inline;f=src%2Fmisc.h;h=9d3c58c87d2859d16a1286155917c1816ec55f84;hb=47a076810291cb7e9b9333e106f2aa9cd4c30c58;hp=1378d00756764bf45070492922e7d75938e7cc32;hpb=7f367e6019289e65b902a5ebf7e3686db5cefdef;p=stockfish
diff --git a/src/misc.h b/src/misc.h
index 1378d007..9d3c58c8 100644
--- a/src/misc.h
+++ b/src/misc.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) 2008-2010 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
@@ -17,26 +17,82 @@
along with this program. If not, see .
*/
-#if !defined(MISC_H_INCLUDED)
+#ifndef MISC_H_INCLUDED
#define MISC_H_INCLUDED
+#include
+#include
#include
+#include
+
#include "types.h"
-extern const std::string engine_name();
-extern const std::string engine_authors();
-extern int get_system_time();
-extern int cpu_count();
-extern int input_available();
-extern void prefetch(char* addr);
-extern void prefetchTables(Key pKey, Key mKey, int threadID);
-
-extern void dbg_hit_on(bool b);
-extern void dbg_hit_on_c(bool c, bool b);
-extern void dbg_before();
-extern void dbg_after();
-extern void dbg_mean_of(int v);
-extern void dbg_print_hit_rate();
-extern void dbg_print_mean();
-
-#endif // !defined(MISC_H_INCLUDED)
+const std::string engine_info(bool to_uci = false);
+void prefetch(char* addr);
+void start_logger(bool b);
+
+void dbg_hit_on(bool b);
+void dbg_hit_on(bool c, bool b);
+void dbg_mean_of(int v);
+void dbg_print();
+
+
+namespace Time {
+ typedef int64_t point;
+ point now();
+}
+
+
+template
+struct HashTable {
+ Entry* operator[](Key key) { return &table[(uint32_t)key & (Size - 1)]; }
+
+private:
+ std::vector table = std::vector(Size);
+};
+
+
+enum SyncCout { IO_LOCK, IO_UNLOCK };
+std::ostream& operator<<(std::ostream&, SyncCout);
+
+#define sync_cout std::cout << IO_LOCK
+#define sync_endl std::endl << IO_UNLOCK
+
+
+/// xorshift64star Pseudo-Random Number Generator
+/// This class is based on original code written and dedicated
+/// to the public domain by Sebastiano Vigna (2014).
+/// It has the following characteristics:
+///
+/// - Outputs 64-bit numbers
+/// - Passes Dieharder and SmallCrush test batteries
+/// - Does not require warm-up, no zeroland to escape
+/// - Internal state is a single 64-bit integer
+/// - Period is 2^64 - 1
+/// - Speed: 1.60 ns/call (Core i7 @3.40GHz)
+///
+/// For further analysis see
+///
+
+class PRNG {
+
+ uint64_t s;
+
+ uint64_t rand64() {
+
+ s ^= s >> 12, s ^= s << 25, s ^= s >> 27;
+ return s * 2685821657736338717LL;
+ }
+
+public:
+ PRNG(uint64_t seed) : s(seed) { assert(seed); }
+
+ template T rand() { return T(rand64()); }
+
+ /// Special generator used to fast init magic numbers.
+ /// Output values only have 1/8th of their bits set on average.
+ template T sparse_rand()
+ { return T(rand64() & rand64() & rand64()); }
+};
+
+#endif // #ifndef MISC_H_INCLUDED