1 files changed, 41 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/usleep.c b/REORG.TODO/sysdeps/mach/usleep.c
new file mode 100644
index 0000000000..49f987df72
--- /dev/null
+++ b/REORG.TODO/sysdeps/mach/usleep.c
@@ -0,0 +1,41 @@
+/* Copyright (C) 1992-2017 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
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <mach.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+/* Sleep USECONDS microseconds, or until a previously set timer goes off.  */
+int
+usleep (useconds_t useconds)
+{
+  mach_port_t recv;
+  struct timeval before, after;
+
+  recv = __mach_reply_port ();
+
+  if (__gettimeofday (&before, NULL) < 0)
+    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 -1;
+
+  return 0;
+}