Finally remove last old C style I/O stuff

[stockfish] / src / misc.cpp

diff --git a/src/misc.cpp b/src/misc.cpp
index a2dc53a7c2bf59f10d7a73bc60dadf2ccd08f247..cf68055cd6de1013d5fdee5fc704cc480e4414cb 100644 (file)
--- a/src/misc.cpp
+++ b/src/misc.cpp
@@ -6,12 +6,12 @@
   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.
-  
+
   Glaurung 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 <http://www.gnu.org/licenses/>.
 */
@@ -38,15 +38,31 @@ int gettimeofday(struct timeval * tp, struct timezone * tzp);
 
 #include <cstdio>
 #include <iomanip>
+#include <iostream>
 #include <sstream>
 
 #include "misc.h"
 
 
-//// 
+////
+//// Variables
+////
+
+long dbg_cnt0 = 0;
+long dbg_cnt1 = 0;
+
+
+////
 //// Functions
 ////
 
+void dbg_print_hit_rate() {
+
+  std::cout << "Total " << dbg_cnt0 << " Hit " << dbg_cnt1
+            << " hit rate (%) " << (dbg_cnt1*100)/(dbg_cnt0 ? dbg_cnt0 : 1)
+            << std::endl;
+}
+
 /// engine_name() returns the full name of the current Glaurung version.
 /// This will be either "Glaurung YYMMDD" (where YYMMDD is the date when the
 /// program was compiled) or "Glaurung <version number>", depending on whether
@@ -60,15 +76,15 @@ const std::string engine_name() {
     const char *dateString = __DATE__;
     std::stringstream s;
     int month = 0, day = 0;
-    
+
     for(int i = 0; i < 12; i++)
       if(strncmp(dateString, monthNames[i], 3) == 0)
         month = i + 1;
     day = atoi(dateString+4);
-    
+
     s << "Glaurung " << (dateString+9) << std::setfill('0') << std::setw(2)
       << month << std::setfill('0') << std::setw(2) << day;
-    
+
     return s.str();
   }
   else
@@ -82,7 +98,7 @@ const std::string engine_name() {
 int get_system_time() {
   struct timeval t;
   gettimeofday(&t, NULL);
-  return t.tv_sec*1000 + t.tv_usec/1000; 
+  return t.tv_sec*1000 + t.tv_usec/1000;
 }
 
 
@@ -120,14 +136,14 @@ int Bioskey()
 {
   fd_set          readfds;
   struct timeval  timeout;
-  
+
   FD_ZERO(&readfds);
   FD_SET(fileno(stdin), &readfds);
   /* Set to timeout immediately */
   timeout.tv_sec = 0;
   timeout.tv_usec = 0;
   select(16, &readfds, 0, 0, &timeout);
-  
+
   return (FD_ISSET(fileno(stdin), &readfds));
 }
 
@@ -162,8 +178,24 @@ int Bioskey()
             return 1;
         return dw;
     } else {
+        // Count the number of unread input records, including keyboard,
+        // mouse, and window-resizing input records.
         GetNumberOfConsoleInputEvents(inh, &dw);
-        return dw <= 1 ? 0 : dw;
+        if (dw <= 0)
+            return 0;
+
+        // Read data from console without removing it from the buffer
+        INPUT_RECORD rec[256];
+        DWORD recCnt;
+        if (!PeekConsoleInput(inh, rec, Min(dw, 256), &recCnt))
+            return 0;
+
+        // Search for at least one keyboard event
+        for (DWORD i = 0; i < recCnt; i++)
+            if (rec[i].EventType == KEY_EVENT)
+                return 1;
+
+        return 0;
     }
 }
 #endif