X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmisc.cpp;h=4d91c0fbb11ef8e4e2ba20a434b086400761e4e3;hp=610cc2402778768a54d4125268c0cd9aa5883ac4;hb=377c406c748643d1aeec6a7ce9a45b32a7416bf3;hpb=0095f423f2fdb2be7c4a5e1bcf39f18599af5e1e

diff --git a/src/misc.cpp b/src/misc.cpp
index 610cc240..4d91c0fb 100644
--- a/src/misc.cpp
+++ b/src/misc.cpp
@@ -17,7 +17,14 @@
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#if !defined(_MSC_VER)
+#if defined(_MSC_VER)
+
+#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>
@@ -26,13 +33,6 @@
 #     include <sys/pstat.h>
 #  endif
 
-#else
-
-#define _CRT_SECURE_NO_DEPRECATE
-#define NOMINMAX // disable macros min() and max()
-#include <windows.h>
-#include <sys/timeb.h>
-
 #endif
 
 #if !defined(NO_PREFETCH)
@@ -175,6 +175,33 @@ 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) {
+
+#if defined(_MSC_VER)
+  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;
+
+  if (abstime.tv_nsec > 1000000000LL)
+  {
+      abstime.tv_sec += 1;
+      abstime.tv_nsec -= 1000000000LL;
+  }
+#endif
+
+  cond_timedwait(sleepCond, sleepLock, tm);
+}
+
+
 /// prefetch() preloads the given address in L1/L2 cache. This is a non
 /// blocking function and do not stalls the CPU waiting for data to be
 /// loaded from memory, that can be quite slow.