Use NULLs in select call instead of empty sets

diff --git a/sched.c b/sched.c
index aae5886ace5c4f0e543c2a3d28d197f53545cf3c..3e44a8da00a9e161065587fe2c1f57130f335265 100644 (file)
--- a/sched.c
+++ b/sched.c
@@ -510,7 +510,7 @@ handle_slew(struct timeval *raw,
 void
 SCH_MainLoop(void)
 {
-  fd_set rd, wr, ex;
+  fd_set rd;
   int status;
   struct timeval tv, *ptv;
   struct timeval now;
@@ -524,11 +524,6 @@ SCH_MainLoop(void)
     /* Copy current set of read file descriptors */
     memcpy((void *) &rd, (void *) &read_fds, sizeof(fd_set));
     
-    /* Blank the write and exception descriptors - we aren't very
-       interested */
-    FD_ZERO(&wr);
-    FD_ZERO(&ex);
-
     /* Try to dispatch any timeouts that have already gone by, and
        keep going until all are done.  (The earlier ones may take so
        long to do that the later ones come around by the time they are
@@ -555,7 +550,7 @@ SCH_MainLoop(void)
       LOG_FATAL(LOGF_Scheduler, "No descriptors or timeout to wait for");
     }
 
-    status = select(one_highest_fd, &rd, &wr, &ex, ptv);
+    status = select(one_highest_fd, &rd, NULL, NULL, ptv);
 
     if (status < 0) {
       if (!need_to_exit)