From 48cbe5f79742887a905c81753db495348238da48 Mon Sep 17 00:00:00 2001
From: kgv <kgv@opencascade.com>
Date: Tue, 15 Sep 2020 13:05:06 +0300
Subject: [PATCH] 0031768: Foundation Classes - use usleep within
 OSD::MilliSecSleep()

---
 src/OSD/OSD.cxx | 48 +++++++++++++++++-------------------------------
 src/OSD/OSD.hxx |  8 ++++----
 2 files changed, 21 insertions(+), 35 deletions(-)

diff --git a/src/OSD/OSD.cxx b/src/OSD/OSD.cxx
index b8c975744c..3a235a1d47 100644
--- a/src/OSD/OSD.cxx
+++ b/src/OSD/OSD.cxx
@@ -55,48 +55,34 @@ Standard_Boolean OSD::CStringToReal(const Standard_CString aString,
   return Standard_True;
 }
 
+#ifdef _WIN32
+  #include <windows.h>
+#else
+  #include <unistd.h>
+#endif
+
 //=======================================================================
 //function : OSDSecSleep
 //purpose  : Cause the process to sleep during a amount of seconds 
 //=======================================================================
-
-#ifdef _WIN32
-# include <windows.h>
-# define SLEEP(NSEC)                 Sleep(1000*(NSEC))
-#else
-#include <unistd.h>
-# define SLEEP(NSEC)                 sleep(NSEC)
-#endif
-
-void OSD::SecSleep(const Standard_Integer aDelay)
+void OSD::SecSleep (const Standard_Integer theSeconds)
 {
-  SLEEP(aDelay);
+#ifdef _WIN32
+  Sleep (theSeconds * 1000);
+#else
+  usleep (theSeconds * 1000 * 1000);
+#endif
 }
 
 //=======================================================================
 //function : MilliSecSleep
 //purpose  : Cause the process to sleep during a amount of milliseconds  
 //=======================================================================
-
+void OSD::MilliSecSleep (const Standard_Integer theMilliseconds)
+{
 #ifdef _WIN32
-
-void OSD::MilliSecSleep(const Standard_Integer aDelay)
-{
-  Sleep(aDelay) ;
-}
-
+  Sleep (theMilliseconds);
 #else
-
-#include <sys/time.h>
-
-void OSD::MilliSecSleep(const Standard_Integer aDelay)
-{
-  struct timeval timeout ;
-
-  timeout.tv_sec = aDelay / 1000 ;
-  timeout.tv_usec = (aDelay % 1000) * 1000 ;
-
-  select(0,NULL,NULL,NULL,&timeout) ;
-}
-
+  usleep (theMilliseconds * 1000);
 #endif
+}
diff --git a/src/OSD/OSD.hxx b/src/OSD/OSD.hxx
index 03dc1eea87..78cfb38d5a 100644
--- a/src/OSD/OSD.hxx
+++ b/src/OSD/OSD.hxx
@@ -113,11 +113,11 @@ public:
   Standard_EXPORT static Standard_Boolean ToCatchFloatingSignals();
 
   //! Commands the process to sleep for a number of seconds.
-  Standard_EXPORT static void SecSleep (const Standard_Integer aDelay);
-  
+  Standard_EXPORT static void SecSleep (const Standard_Integer theSeconds);
+
   //! Commands the process to sleep for a number of milliseconds
-  Standard_EXPORT static void MilliSecSleep (const Standard_Integer aDelay);
-  
+  Standard_EXPORT static void MilliSecSleep (const Standard_Integer theMilliseconds);
+
   //! Converts aReal into aCstring in exponential format with a period as
   //! decimal point, no thousand separator and no grouping of digits.
   //! The conversion is independant from the current locale