about summary refs log tree commit diff
path: root/sysdeps/posix/sleep.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/posix/sleep.c')
-rw-r--r--sysdeps/posix/sleep.c66
1 files changed, 0 insertions, 66 deletions
diff --git a/sysdeps/posix/sleep.c b/sysdeps/posix/sleep.c
deleted file mode 100644
index b3162baab1..0000000000
--- a/sysdeps/posix/sleep.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/* Sleep for a given number of seconds.  POSIX.1 version.
-   Copyright (C) 1991-2017 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 <time.h>
-#include <unistd.h>
-#include <errno.h>
-#include <sys/param.h>
-
-
-/* Make the process sleep for SECONDS seconds, or until a signal arrives
-   and is not ignored.  The function returns the number of seconds less
-   than SECONDS which it actually slept (zero if it slept the full time).
-   If a signal handler does a `longjmp' or modifies the handling of the
-   SIGALRM signal while inside `sleep' call, the handling of the SIGALRM
-   signal afterwards is undefined.  There is no return value to indicate
-   error, but if `sleep' returns SECONDS, it probably didn't work.  */
-unsigned int
-__sleep (unsigned int seconds)
-{
-  int save_errno = errno;
-
-  const unsigned int max
-    = (unsigned int) (((unsigned long int) (~((time_t) 0))) >> 1);
-  struct timespec ts = { 0, 0 };
-  do
-    {
-      if (sizeof (ts.tv_sec) <= sizeof (seconds))
-        {
-          /* Since SECONDS is unsigned assigning the value to .tv_sec can
-             overflow it.  In this case we have to wait in steps.  */
-          ts.tv_sec += MIN (seconds, max);
-          seconds -= (unsigned int) ts.tv_sec;
-        }
-      else
-        {
-          ts.tv_sec = (time_t) seconds;
-          seconds = 0;
-        }
-
-      if (__nanosleep (&ts, &ts) < 0)
-        /* We were interrupted.
-           Return the number of (whole) seconds we have not yet slept.  */
-        return seconds + ts.tv_sec;
-    }
-  while (seconds > 0);
-
-  __set_errno (save_errno);
-
-  return 0;
-}
-weak_alias (__sleep, sleep)