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-rw-r--r--sysdeps/mach/usleep.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/sysdeps/mach/usleep.c b/sysdeps/mach/usleep.c
index d09ab12ab2..8ea962c723 100644
--- a/sysdeps/mach/usleep.c
+++ b/sysdeps/mach/usleep.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992, 93, 94, 97, 98, 99 Free Software Foundation, Inc.
+/* Copyright (C) 1992, 93, 94, 97, 98, 99, 2001 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,7 +22,7 @@
 #include <unistd.h>
 
 /* Sleep USECONDS microseconds, or until a previously set timer goes off.  */
-void
+int
 usleep (useconds_t useconds)
 {
   mach_port_t recv;
@@ -31,10 +31,12 @@ usleep (useconds_t useconds)
   recv = __mach_reply_port ();
 
   if (__gettimeofday (&before, NULL) < 0)
-    return;
+    return -1;
   (void) __mach_msg (NULL, MACH_RCV_MSG|MACH_RCV_TIMEOUT|MACH_RCV_INTERRUPT,
 		     0, 0, recv, (useconds + 999) / 1000, MACH_PORT_NULL);
   __mach_port_destroy (mach_task_self (), recv);
   if (__gettimeofday (&after, NULL) < 0)
-    return;
+    return -1;
+
+  return 0;
 }