diff --git a/src/misc.cpp b/src/misc.cpp deleted file mode 100644 index b3cd10a0..00000000 --- a/src/misc.cpp +++ /dev/null @@ -1,208 +0,0 @@ -/* - 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 - - Stockfish is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - Stockfish is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see . -*/ - -#include -#include -#include -#include - -#include "misc.h" -#include "thread.h" - -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. -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! -/// Idea from http://groups.google.com/group/comp.lang.c++/msg/1d941c0f26ea0d81 - -struct Tie: public streambuf { // MSVC requires splitted streambuf for cin and cout - - Tie(streambuf* b, ofstream* f) : buf(b), file(f) {} - - int sync() { return file->rdbuf()->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; - - int log(int c, const char* prefix) { - - static int last = '\n'; - - if (last == '\n') - file->rdbuf()->sputn(prefix, 3); - - return last = file->rdbuf()->sputc((char)c); - } -}; - -class Logger { - - Logger() : in(cin.rdbuf(), &file), out(cout.rdbuf(), &file) {} - ~Logger() { start(false); } - - ofstream file; - Tie in, out; - -public: - static void start(bool b) { - - static Logger l; - - if (b && !l.file.is_open()) - { - l.file.open("io_log.txt", ifstream::out | ifstream::app); - cin.rdbuf(&l.in); - cout.rdbuf(&l.out); - } - else if (!b && l.file.is_open()) - { - cout.rdbuf(l.out.buf); - cin.rdbuf(l.in.buf); - l.file.close(); - } - } -}; - -} // 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_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; -} - - -/// 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; - - if (sc == IO_LOCK) - m.lock(); - - if (sc == IO_UNLOCK) - m.unlock(); - - return os; -} - - -/// 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); -} - - -/// 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*) {} - -#else - -void prefetch(char* addr) { - -# if defined(__INTEL_COMPILER) - // This hack prevents prefetches from being optimized away by - // Intel compiler. Both MSVC and gcc seem not be affected by this. - __asm__ (""); -# endif - -# if defined(__INTEL_COMPILER) || defined(_MSC_VER) - _mm_prefetch(addr, _MM_HINT_T0); -# else - __builtin_prefetch(addr); -# endif -} - -#endif