X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmisc.cpp;h=f09694cc043607a6cd17d0409baf1e96c9537229;hp=b650b96094a66d4a0fbaa0c4ce20a86b3d143e42;hb=6fa6da3ee13d2b7bdbec3cd24ff8ca43233c74fb;hpb=c9dcda6ac488c0058ebd567e1f52e30b8cd0db20
diff --git a/src/misc.cpp b/src/misc.cpp
index b650b960..f09694cc 100644
--- a/src/misc.cpp
+++ b/src/misc.cpp
@@ -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) 2008-2014 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
@@ -17,6 +17,7 @@
along with this program. If not, see .
*/
+#include
#include
#include
#include
@@ -26,58 +27,14 @@
using namespace std;
+namespace {
+
/// Version number. If Version is left empty, then compile date in the format
/// DD-MM-YY and show in engine_info.
-static const string Version = "";
-
-
-/// engine_info() returns the full name of the current Stockfish version. This
-/// will be either "Stockfish DD-MM-YY" (where DD-MM-YY is the date when
-/// the program was compiled) or "Stockfish ", depending on whether
-/// Version is empty.
-
-const string engine_info(bool to_uci) {
-
- const string months("Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec");
- string month, day, year;
- stringstream s, date(__DATE__); // From compiler, format is "Sep 21 2008"
-
- s << "Stockfish " << Version << setfill('0');
-
- if (Version.empty())
- {
- date >> month >> day >> year;
- s << setw(2) << day << setw(2) << (1 + months.find(month) / 4) << year.substr(2);
- }
-
- s << (Is64Bit ? " 64" : "")
- << (HasPopCnt ? " SSE4.2" : "")
- << (to_uci ? "\nid author ": " by ")
- << "Tord Romstad, Marco Costalba and Joona Kiiski";
-
- return s.str();
-}
-
-
-/// Debug functions used mainly to collect run-time statistics
-
-static uint64_t hits[2], means[2];
-
-void dbg_hit_on(bool b) { ++hits[0]; if (b) ++hits[1]; }
-void dbg_hit_on_c(bool c, bool b) { if (c) dbg_hit_on(b); }
-void dbg_mean_of(int v) { ++means[0]; means[1] += v; }
-
-void dbg_print() {
-
- if (hits[0])
- cerr << "Total " << hits[0] << " Hits " << hits[1]
- << " hit rate (%) " << 100 * hits[1] / hits[0] << endl;
-
- if (means[0])
- cerr << "Total " << means[0] << " Mean "
- << (double)means[1] / means[0] << endl;
-}
+const string Version = "";
+/// Debug counters
+int64_t hits[2], means[2];
/// Our fancy logging facility. The trick here is to replace cin.rdbuf() and
/// cout.rdbuf() with two Tie objects that tie cin and cout to a file stream. We
@@ -136,18 +93,65 @@ public:
}
};
+} // namespace
+
+/// engine_info() returns the full name of the current Stockfish version. This
+/// will be either "Stockfish DD-MM-YY" (where DD-MM-YY is the date when
+/// the program was compiled) or "Stockfish ", depending on whether
+/// Version is empty.
+
+const string engine_info(bool to_uci) {
+
+ const string months("Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec");
+ string month, day, year;
+ stringstream ss, date(__DATE__); // From compiler, format is "Sep 21 2008"
+
+ ss << "Stockfish " << Version << setfill('0');
+
+ if (Version.empty())
+ {
+ date >> month >> day >> year;
+ ss << setw(2) << day << setw(2) << (1 + months.find(month) / 4) << year.substr(2);
+ }
+
+ ss << (Is64Bit ? " 64" : "")
+ << (HasPext ? " BMI2" : (HasPopCnt ? " POPCNT" : ""))
+ << (to_uci ? "\nid author ": " by ")
+ << "Tord Romstad, Marco Costalba and Joona Kiiski";
+
+ return ss.str();
+}
+
+
+/// Debug functions used mainly to collect run-time statistics
+
+void dbg_hit_on(bool b) { ++hits[0]; if (b) ++hits[1]; }
+void dbg_hit_on(bool c, bool b) { if (c) dbg_hit_on(b); }
+void dbg_mean_of(int v) { ++means[0]; means[1] += v; }
+
+void dbg_print() {
+
+ if (hits[0])
+ cerr << "Total " << hits[0] << " Hits " << hits[1]
+ << " hit rate (%) " << 100 * hits[1] / hits[0] << endl;
+
+ if (means[0])
+ cerr << "Total " << means[0] << " Mean "
+ << (double)means[1] / means[0] << endl;
+}
+
/// Used to serialize access to std::cout to avoid multiple threads writing at
/// the same time.
std::ostream& operator<<(std::ostream& os, SyncCout sc) {
- static Mutex m;
+ static std::mutex m;
- if (sc == io_lock)
+ if (sc == IO_LOCK)
m.lock();
- if (sc == io_unlock)
+ if (sc == IO_UNLOCK)
m.unlock();
return os;
@@ -158,35 +162,16 @@ std::ostream& operator<<(std::ostream& os, SyncCout sc) {
void start_logger(bool b) { Logger::start(b); }
-/// timed_wait() waits for msec milliseconds. It is mainly a helper to wrap
-/// the conversion from milliseconds to struct timespec, as used by pthreads.
-
-void timed_wait(WaitCondition& sleepCond, Lock& sleepLock, int msec) {
-
-#ifdef _WIN32
- int tm = msec;
-#else
- timespec ts, *tm = &ts;
- uint64_t ms = Time::now() + msec;
-
- ts.tv_sec = ms / 1000;
- ts.tv_nsec = (ms % 1000) * 1000000LL;
-#endif
-
- cond_timedwait(sleepCond, sleepLock, tm);
-}
-
-
/// prefetch() preloads the given address in L1/L2 cache. This is a non-blocking
/// function that doesn't stall the CPU waiting for data to be loaded from memory,
/// which can be quite slow.
#ifdef NO_PREFETCH
-void prefetch(char*) {}
+void prefetch(void*) {}
#else
-void prefetch(char* addr) {
+void prefetch(void* addr) {
# if defined(__INTEL_COMPILER)
// This hack prevents prefetches from being optimized away by
@@ -195,7 +180,7 @@ void prefetch(char* addr) {
# endif
# if defined(__INTEL_COMPILER) || defined(_MSC_VER)
- _mm_prefetch(addr, _MM_HINT_T0);
+ _mm_prefetch((char*)addr, _MM_HINT_T0);
# else
__builtin_prefetch(addr);
# endif