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
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <chrono>
#include <fstream>
#include <iomanip>
#include <iostream>
#include "thread.h"
using namespace std;
-using namespace std::chrono;
namespace {
/// 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();
}
-/// Convert system time to milliseconds. That's all we need.
-
-Time::point Time::now() {
- return duration_cast<milliseconds>(steady_clock::now().time_since_epoch()).count();
-}
-
-
/// 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); }
std::ostream& operator<<(std::ostream& os, SyncCout sc) {
- static std::mutex m;
+ static Mutex m;
if (sc == IO_LOCK)
m.lock();
/// Trampoline helper to avoid moving Logger to misc.h
-void start_logger(bool b) { Logger::start(b); }
+void start_logger(const std::string& fname) { Logger::start(fname); }
/// prefetch() preloads the given address in L1/L2 cache. This is a non-blocking