diff options
author | Roland McGrath <roland@gnu.org> | 1994-10-24 04:48:10 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 1994-10-24 04:48:10 +0000 |
commit | 0452ccfa5878036dcbec0e92d0ae1adc1097a9bb (patch) | |
tree | 1bd3aaac7c1b0e020d54bd17e16b1358b1590151 | |
parent | 35baa98696ad90ad7045b666b155ac8cf33ff2a9 (diff) |
Initial revision
-rw-r--r-- | sysdeps/mach/hurd/setpriority.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/setpriority.c b/sysdeps/mach/hurd/setpriority.c new file mode 100644 index 0000000000..c4ea4c1596 --- /dev/null +++ b/sysdeps/mach/hurd/setpriority.c @@ -0,0 +1,55 @@ +/* Copyright (C) 1994 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 <hurd.h> +#include <hurd/resource.h> + +/* Set the priority of all processes specified by WHICH and WHO + to PRIO. Returns 0 on success, -1 on errors. */ +int +setpriority (enum __priority_which which, int who, int prio) +{ + error_t err, onerr; + unsigned int nfound = 0; + + error_t setonepriority (pid_t pid, struct procinfo *pi) + { + task_t task; + error_t piderr = __USEPORT (PROC, __proc_pid2task (port, pid, &task)); + if (piderr != ESRCH) + { + ++nfound; + err = piderr; + } + if (! piderr) + { + err = __task_priority (task, NICE_TO_MACH_PRIORITY (prio), 1); + __mach_port_deallocate (__mach_task_self (), task); + } + return 0; + } + + onerr = 0; + err = _hurd_priority_which_map (which, who, setonepriority); + + if (!err && nfound == 0) + /* No error, but no pids found. */ + err = onerr ?: ESRCH; + + return err ? __hurd_fail (err) : 0; +} |