diff options
author | Roland McGrath <roland@gnu.org> | 1996-02-22 15:52:20 +0000 |
---|---|---|
committer | Roland McGrath <roland@gnu.org> | 1996-02-22 15:52:20 +0000 |
commit | a182affdd948423d4779f848954e411c94f41a54 (patch) | |
tree | 3043f2eb9c95c6127b159c62174271422ff8327b /sysdeps/unix/nice.c | |
parent | f2e235b9b807706f12636b1d194a61c14e400e65 (diff) | |
download | glibc-a182affdd948423d4779f848954e411c94f41a54.tar glibc-a182affdd948423d4779f848954e411c94f41a54.tar.gz glibc-a182affdd948423d4779f848954e411c94f41a54.tar.bz2 glibc-a182affdd948423d4779f848954e411c94f41a54.zip |
Wed Feb 21 02:25:07 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>cvs/libc-960226cvs/libc-960225cvs/libc-960224cvs/libc-960223
* Rules (others): Depend on $(extra-objs), $(install-lib),
$(install-bin), $(install-sbin), in object directory.
* Makeconfig (link-libc): Don't pass -rpath option with default
path, since ld.so should use the same default.
* Makerules (build-shlib): Likewise.
* Makerules (make-target-directory): Use mkinstalldirs.
* sysdeps/mach/i386/sysdep.h: Include unix/i386/sysdep.h to
redefine ENTRY et al.
* sysdeps/unix/sysv/linux/i386/sysdep.h (NO_UNDERSCORES, ENTRY):
Macros removed. The code in unix/i386/sysdep.h should now suffice.
* sysdeps/unix/i386/sysdep.h (ALIGNARG): New macro, defns for
[HAVE_ELF] and not.
(ENTRY): Use it in .align directive.
(CALL_MCOUNT): New macro, empty unless [PROF].
(ENTRY): Do CALL_MCOUNT just after the label.
* Makeconfig (CPPFLAGS-.po): New variable, use -DPROF so assembly
code can call mcount.
Tue Feb 20 23:05:16 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
* time/private.h, time/zdump.c, time/zic.c: Updated verbatim from ADO;
translation markings are now integrated in his distribution.
* stdlib/strtod.c (round_and_return): Add missing (mp_limb) 1 cast.
* po: New directory where `LANG.po' files for message translations
will reside.
* po/SYS_libc.pot: New file, template of message strings as in source.
* MakeTAGS: New rules to build po/SYS_libc.pot automatically from
the source using xgettext.
* Makerules ($(..)po/%.pot): New rule.
* manual/Makefile (../po/manual.pot): New target, make it empty.
* sysdeps/unix/bsd/alarm.c: Moved to sysdeps/unix/alarm.c.
* sysdeps/unix/bsd/nice.c: Moved to sysdeps/unix/nice.c.
* sysdeps/unix/bsd/stime.c: Moved to sysdeps/unix/stime.c.
* sysdeps/unix/bsd/time.c: Moved to sysdeps/unix/time.c.
* sysdeps/unix/bsd/utime.c: Moved to sysdeps/unix/utime.c.
Diffstat (limited to 'sysdeps/unix/nice.c')
-rw-r--r-- | sysdeps/unix/nice.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sysdeps/unix/nice.c b/sysdeps/unix/nice.c new file mode 100644 index 0000000000..01f1412adf --- /dev/null +++ b/sysdeps/unix/nice.c @@ -0,0 +1,45 @@ +/* Copyright (C) 1992 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., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#include <errno.h> +#include <unistd.h> +#include <sys/resource.h> + +/* Increment the scheduling priority of the calling process by INCR. + The superuser may use a negative INCR to decrement the priority. */ +int +DEFUN(nice, (incr), int incr) +{ + int save; + int prio; + + /* -1 is a valid priority, so we use errno to check for an error. */ + save = errno; + errno = 0; + prio = getpriority (PRIO_PROCESS, 0); + if (prio == -1) + { + if (errno != 0) + return -1; + else + errno = save; + } + + return setpriority (PRIO_PROCESS, 0, prio + incr); +} |