about summary refs log tree commit diff
path: root/sysdeps/unix/bsd
diff options
context:
space:
mode:
authorZack Weinberg <zackw@panix.com>2019-09-04 16:51:23 +0000
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2019-10-30 17:11:10 -0300
commit2b5fea833bcd0f651579afd16ed7842770ecbae1 (patch)
tree1da4cec5abfb962a083d4c1b520a222f7ba5e30d /sysdeps/unix/bsd
parentf9a7554009cf38f390e74fcabc5b49f974f72382 (diff)
downloadglibc-2b5fea833bcd0f651579afd16ed7842770ecbae1.tar.gz
glibc-2b5fea833bcd0f651579afd16ed7842770ecbae1.tar.xz
glibc-2b5fea833bcd0f651579afd16ed7842770ecbae1.zip
Consolidate and deprecate ftime
ftime is an obsolete variation on gettimeofday, offering only
millisecond time resolution; it was probably a system call in ooold
versions of BSD Unix.  For historic reasons, we had three
implementations of it.  These are all consolidated into time/ftime.c,
and then the function is deprecated.

For some reason, the implementation of ftime in terms of gettimeofday
was rounding rather than truncating microseconds to milliseconds.  In
all the other places where we use a higher-resolution time function to
implement a lower-resolution one, we truncate.  ftime is changed to
match, just for tidiness' sake.

Like gettimeofday, ftime tries to report the time zone, and using that
information is always a bug.  This patch dummies out the reported
timezone information; the timezone and dstflag fields of the
returned "struct timeb" will always be zero.

Checked on x86_64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu,
powerpc64-linux-gnu, and powerpc-linux-gnu.

Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'sysdeps/unix/bsd')
-rw-r--r--sysdeps/unix/bsd/ftime.c40
1 files changed, 0 insertions, 40 deletions
diff --git a/sysdeps/unix/bsd/ftime.c b/sysdeps/unix/bsd/ftime.c
deleted file mode 100644
index e1f20bc609..0000000000
--- a/sysdeps/unix/bsd/ftime.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 1994-2019 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
-   <https://www.gnu.org/licenses/>.  */
-
-#include <sys/timeb.h>
-#include <sys/time.h>
-
-int
-ftime (struct timeb *timebuf)
-{
-  struct timeval tv;
-  struct timezone tz;
-
-  if (__gettimeofday (&tv, &tz) < 0)
-    return -1;
-
-  timebuf->time = tv.tv_sec;
-  timebuf->millitm = (tv.tv_usec + 500) / 1000;
-  if (timebuf->millitm == 1000)
-    {
-      ++timebuf->time;
-      timebuf->millitm = 0;
-    }
-  timebuf->timezone = tz.tz_minuteswest;
-  timebuf->dstflag = tz.tz_dsttime;
-  return 0;
-}