From 0d563783490bf5b2d7d52cab205760fdff5d5650 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Thu, 24 Oct 2019 17:52:30 +0000 Subject: Use clock_gettime to implement time. Change the default implementation of time to call clock_gettime, to align with new Linux ports that are expected to only implement __NR_clock_gettime. Arch-specific implementation that either call the time vDSO or route to gettimeofday vDSO are not removed. Also for Linux, CLOCK_REALTIME_COARSE is used instead of generic CLOCK_REALTIME clockid. This takes less CPU time and its behavior better matches what the current glibc does. Checked on x86_64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu, powerpc64-linux-gnu, powerpc-linux-gnu, and aarch64-linux-gnu. Co-authored-by: Zack Weinberg Reviewed-by: Lukasz Majewski --- sysdeps/posix/time.c | 40 ---------------------------------------- 1 file changed, 40 deletions(-) delete mode 100644 sysdeps/posix/time.c (limited to 'sysdeps/posix/time.c') diff --git a/sysdeps/posix/time.c b/sysdeps/posix/time.c deleted file mode 100644 index 0ab31bd7b6..0000000000 --- a/sysdeps/posix/time.c +++ /dev/null @@ -1,40 +0,0 @@ -/* Copyright (C) 1991-2019 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 - . */ - -#include /* For NULL. */ -#include -#include - - -/* Return the current time as a `time_t' and also put it in *T if T is - not NULL. Time is represented as seconds from Jan 1 00:00:00 1970. */ -time_t -time (time_t *t) -{ - struct timeval tv; - time_t result; - - if (__gettimeofday (&tv, (struct timezone *) NULL)) - result = (time_t) -1; - else - result = (time_t) tv.tv_sec; - - if (t != NULL) - *t = result; - return result; -} -libc_hidden_def (time) -- cgit 1.4.1