Remove cruft from Logger class

[stockfish] / src / misc.cpp

diff --git a/src/misc.cpp b/src/misc.cpp
index ab56f293a10d082000be16eb767a126487b4b7c7..bdb2cc27c4d31372165ebfff8e073f535c913064 100644 (file)
--- a/src/misc.cpp
+++ b/src/misc.cpp
@@ -17,17 +17,13 @@
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#if defined(_MSC_VER)
+#if defined(_WIN32) || defined(_WIN64)
 
-#define _CRT_SECURE_NO_DEPRECATE
 #define NOMINMAX // disable macros min() and max()
 #include <windows.h>
-#include <sys/timeb.h>
 
 #else
 
-#  include <sys/time.h>
-#  include <sys/types.h>
 #  include <unistd.h>
 #  if defined(__hpux)
 #     include <sys/pstat.h>
@@ -40,13 +36,10 @@
 #endif
 
 #include <algorithm>
-#include <cassert>
-#include <cstdio>
 #include <iomanip>
 #include <iostream>
 #include <sstream>
 
-#include "bitcount.h"
 #include "misc.h"
 #include "thread.h"
 
@@ -55,8 +48,8 @@ using namespace std;
 /// Version number. If Version is left empty, then Tag plus current
 /// date (in the format YYMMDD) is used as a version number.
 
-static const string Version = "2.2";
-static const string Tag  = "";
+static const string Version = "";
+static const string Tag = "";
 
 
 /// engine_info() returns the full name of the current Stockfish version.
@@ -80,12 +73,12 @@ const string engine_info(bool to_uci) {
       s << "Stockfish " << Tag
         << setfill('0') << " " << year.substr(2)
         << setw(2) << (1 + months.find(month) / 4)
-        << setw(2) << day << cpu64 << popcnt;
+        << setw(2) << day;
   }
   else
-      s << "Stockfish " << Version << cpu64 << popcnt;
+      s << "Stockfish " << Version;
 
-  s << (to_uci ? "\nid author ": " by ")
+  s << cpu64 << popcnt << (to_uci ? "\nid author ": " by ")
     << "Tord Romstad, Marco Costalba and Joona Kiiski";
 
   return s.str();
@@ -112,27 +105,67 @@ void dbg_print() {
 }
 
 
-/// system_time() returns the current system time, measured in milliseconds
+/// Our fancy logging facility. The trick here is to replace cin.rdbuf() and
+/// cout.rdbuf() with this one that tees cin and cout to a file stream. We can
+/// toggle the logging of std::cout and std:cin at runtime while preserving i/o
+/// functionality and without changing a single line of code!
+/// Idea from http://groups.google.com/group/comp.lang.c++/msg/1d941c0f26ea0d81
 
-int system_time() {
+class Logger: public streambuf {
 
-#if defined(_MSC_VER)
-  struct _timeb t;
-  _ftime(&t);
-  return int(t.time * 1000 + t.millitm);
-#else
-  struct timeval t;
-  gettimeofday(&t, NULL);
-  return t.tv_sec * 1000 + t.tv_usec / 1000;
-#endif
-}
+  Logger() : cinbuf(cin.rdbuf()), coutbuf(cout.rdbuf()) {}
+  ~Logger() { start(false); }
+
+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);
+        cout.rdbuf(&l);
+    }
+    else if (!b && l.file.is_open())
+    {
+        cout.rdbuf(l.coutbuf);
+        cin.rdbuf(l.cinbuf);
+        l.file.close();
+    }
+  }
+
+private:
+  int sync() { return file.rdbuf()->pubsync(), coutbuf->pubsync(); }
+  int overflow(int c) { return log(coutbuf->sputc((char)c), "<< ") ; }
+  int underflow() { return cinbuf->sgetc(); }
+  int uflow() { return log(cinbuf->sbumpc(), ">> "); }
+
+  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);
+  }
+
+private:
+  ofstream file;
+  streambuf *cinbuf, *coutbuf;
+};
+
+
+/// Trampoline helper to avoid moving Logger to misc.h header
+void start_logger(bool b) { Logger::start(b); }
 
 
 /// cpu_count() tries to detect the number of CPU cores
 
 int cpu_count() {
 
-#if defined(_MSC_VER)
+#if defined(_WIN32) || defined(_WIN64)
   SYSTEM_INFO s;
   GetSystemInfo(&s);
   return std::min(int(s.dwNumberOfProcessors), MAX_THREADS);
@@ -156,24 +189,16 @@ int cpu_count() {
 /// timed_wait() waits for msec milliseconds. It is mainly an helper to wrap
 /// conversion from milliseconds to struct timespec, as used by pthreads.
 
-void timed_wait(WaitCondition* sleepCond, Lock* sleepLock, int msec) {
+void timed_wait(WaitCondition& sleepCond, Lock& sleepLock, int msec) {
 
-#if defined(_MSC_VER)
+#if defined(_WIN32) || defined(_WIN64)
   int tm = msec;
 #else
-  struct timeval t;
-  struct timespec abstime, *tm = &abstime;
-
-  gettimeofday(&t, NULL);
-
-  abstime.tv_sec = t.tv_sec + (msec / 1000);
-  abstime.tv_nsec = (t.tv_usec + (msec % 1000) * 1000) * 1000;
+  timespec ts, *tm = &ts;
+  uint64_t ms = Time::current_time().msec() + msec;
 
-  if (abstime.tv_nsec > 1000000000LL)
-  {
-      abstime.tv_sec += 1;
-      abstime.tv_nsec -= 1000000000LL;
-  }
+  ts.tv_sec = ms / 1000;
+  ts.tv_nsec = (ms % 1000) * 1000000LL;
 #endif
 
   cond_timedwait(sleepCond, sleepLock, tm);