aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/unix/nice.c
diff options
context:
space:
mode:
authorRoland McGrath <roland@gnu.org>1996-02-22 15:52:20 +0000
committerRoland McGrath <roland@gnu.org>1996-02-22 15:52:20 +0000
commita182affdd948423d4779f848954e411c94f41a54 (patch)
tree3043f2eb9c95c6127b159c62174271422ff8327b /sysdeps/unix/nice.c
parentf2e235b9b807706f12636b1d194a61c14e400e65 (diff)
downloadglibc-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.c45
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);
+}