diff options
Diffstat (limited to 'sysdeps/mach/hurd/getclktck.c')
-rw-r--r-- | sysdeps/mach/hurd/getclktck.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/getclktck.c b/sysdeps/mach/hurd/getclktck.c new file mode 100644 index 0000000000..8ebe1bf9c9 --- /dev/null +++ b/sysdeps/mach/hurd/getclktck.c @@ -0,0 +1,55 @@ +/* Return run-time value of CLK_TCK for Hurd. + Copyright (C) 1999, 2000 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <errno.h> +#include <time.h> +#include <unistd.h> + +#include <mach.h> +#include <mach/host_info.h> + +#ifndef SYSTEM_CLK_TCK +# define SYSTEM_CLK_TCK 100 +#endif + +/* Return frequency of times(). */ +int +__getclktck () +{ + struct host_sched_info hsi; + mach_msg_type_number_t count; + error_t err; + + count = HOST_SCHED_INFO_COUNT; + err = __host_info (__mach_task_self (), HOST_SCHED_INFO, + (host_info_t) &hsi, &count); + if (err) + return SYSTEM_CLK_TCK; + + return hsi.min_quantum; +} + +/* Before glibc 2.2, the Hurd actually did this differently, so we + need to keep a compatibility symbol. */ + +#include <shlib-compat.h> + +#if SHLIB_COMPAT (libc, GLIBC_2_1_1, GLIBC_2_2) +compat_symbol (libc, __getclktck, __libc_clk_tck, GLIBC_2_1_1); +#endif |