Clean up sleep.c

src/sleep.c

@@ -50,19 +50,16 @@ extern double monotonic_seconds();
 int hl_usleep(rig_useconds_t usec)
 {
     double sleep_time = usec / 1e6;
-    struct timespec tv1, tv2;
+    struct timespec tv1;
     double start_at = monotonic_seconds();
     double end_at = start_at + sleep_time;
     double delay = sleep_time;
-    double lasterr = 0;
 
     if (sleep_time > .001) { delay -= .0001; }
     else if (sleep_time > .0001) { delay -= .00005; }
 
     tv1.tv_sec = (time_t) delay;
     tv1.tv_nsec = (long)((delay - tv1.tv_sec) * 1e+9);
-    tv2.tv_sec = 0;
-    tv2.tv_nsec = 1000000;
 //    rig_debug(RIG_DEBUG_CACHE,"usec=%ld, sleep_time=%f, tv1=%ld,%ld\n", usec, sleep_time, (long)tv1.tv_sec,
 //           (long)tv1.tv_nsec);
 
@@ -74,26 +71,30 @@ int hl_usleep(rig_useconds_t usec)
         double elapsed;
         QueryPerformanceFrequency(&frequency);
         QueryPerformanceCounter(&start);
-	long long loops=0;
         do {
         struct timespec startc;
         clock_gettime(CLOCK_REALTIME, &startc);
             QueryPerformanceCounter(&end);
             elapsed = (double)(end.QuadPart - start.QuadPart) / frequency.QuadPart;
-	    ++loops;
         } while (elapsed < sleep_time);
     } else {
         // Use Sleep for larger durations >= 3 milliseconds
         //Sleep((DWORD)(seconds * 1000 - 1));  // Convert seconds to milliseconds
-	usleep(sleep_time*1e6-400);
+        usleep(sleep_time*1e6-400);
     }
 #else
+    {
+    struct timespec tv2;
+    double lasterr = 0;
+    tv2.tv_sec = 0;
+    tv2.tv_nsec = 1000000;
     nanosleep(&tv1, NULL);
 
     while (((lasterr = end_at - monotonic_seconds()) > 0))
     {
         nanosleep(&tv2, NULL);
     }
+    }
 
 #endif
     return 0;