1 /* Resource limits for the Hurd.
2 Copyright (C) 1994-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
19 #ifndef _HURD_RESOURCE_H
20 #define _HURD_RESOURCE_H
22 #include <sys/types.h>
23 #include <sys/resource.h>
25 #include <bits/types/error_t.h>
26 #include <hurd/process.h>
28 /* This array contains the current resource limits for the process. */
29 extern struct rlimit _hurd_rlimits
[RLIM_NLIMITS
];
30 extern struct mutex _hurd_rlimit_lock
; /* Locks _hurd_rlimits. */
33 /* Helper function for getpriority and setpriority. Maps FN over all the
34 processes specified by WHICH and WHO. PI is non-null if a
35 proc_getprocinfo was already done; FN may use *PI arbitrarily, it is
36 reset on the next call; PI_FLAGS is passed to proc_getprocinfo. Returns
37 FN's result the first time it returns nonzero. If FN never returns
38 nonzero, this returns zero. */
39 extern error_t
_hurd_priority_which_map (enum __priority_which which
, int who
,
40 error_t (*fn
) (pid_t pid
,
44 /* Convert between Mach priority values and the priority
45 values used by getpriority, setpriority, and nice. */
46 #define MACH_PRIORITY_TO_NICE(prio) ((prio) - 25)
47 #define NICE_TO_MACH_PRIORITY(nice) ((nice) + 25)