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) 2015-2016 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
/// DD-MM-YY and show in engine_info.
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
/// can toggle the logging of std::cout and std:cin at runtime whilst preserving
-/// usual i/o functionality, all without changing a single line of code!
+/// usual I/O functionality, all without changing a single line of code!
/// Idea from http://groups.google.com/group/comp.lang.c++/msg/1d941c0f26ea0d81
-struct Tie: public streambuf { // MSVC requires splitted streambuf for cin and cout
+struct Tie: public streambuf { // MSVC requires split streambuf for cin and cout
- Tie(streambuf* b, ofstream* f) : buf(b), file(f) {}
+ Tie(streambuf* b, streambuf* l) : buf(b), logBuf(l) {}
- int sync() { return file->rdbuf()->pubsync(), buf->pubsync(); }
+ int sync() { return logBuf->pubsync(), buf->pubsync(); }
int overflow(int c) { return log(buf->sputc((char)c), "<< "); }
int underflow() { return buf->sgetc(); }
int uflow() { return log(buf->sbumpc(), ">> "); }
- streambuf* buf;
- ofstream* file;
+ streambuf *buf, *logBuf;
int log(int c, const char* prefix) {
- static int last = '\n';
+ static int last = '\n'; // Single log file
if (last == '\n')
- file->rdbuf()->sputn(prefix, 3);
+ logBuf->sputn(prefix, 3);
- return last = file->rdbuf()->sputc((char)c);
+ return last = logBuf->sputc((char)c);
}
};
class Logger {
- Logger() : in(cin.rdbuf(), &file), out(cout.rdbuf(), &file) {}
- ~Logger() { start(false); }
+ Logger() : in(cin.rdbuf(), file.rdbuf()), out(cout.rdbuf(), file.rdbuf()) {}
+ ~Logger() { start(""); }
ofstream file;
Tie in, out;
public:
- static void start(bool b) {
+ static void start(const std::string& fname) {
static Logger l;
- if (b && !l.file.is_open())
+ if (!fname.empty() && !l.file.is_open())
{
- l.file.open("io_log.txt", ifstream::out | ifstream::app);
+ l.file.open(fname, ifstream::out);
cin.rdbuf(&l.in);
cout.rdbuf(&l.out);
}
- else if (!b && l.file.is_open())
+ else if (fname.empty() && l.file.is_open())
{
cout.rdbuf(l.out.buf);
cin.rdbuf(l.in.buf);
ss << (Is64Bit ? " 64" : "")
<< (HasPext ? " BMI2" : (HasPopCnt ? " POPCNT" : ""))
<< (to_uci ? "\nid author ": " by ")
- << "Tord Romstad, Marco Costalba and Joona Kiiski";
+ << "T. Romstad, M. Costalba, J. Kiiski, G. Linscott";
return ss.str();
}
/// Debug functions used mainly to collect run-time statistics
+static int64_t hits[2], means[2];
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); }
/// Trampoline helper to avoid moving Logger to misc.h
-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);
-}
+void start_logger(const std::string& fname) { Logger::start(fname); }
/// prefetch() preloads the given address in L1/L2 cache. This is a non-blocking
/// 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
# 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