]>
git.proxmox.com Git - mirror_lxc.git/blob - src/lxc/lxc_cgroup.c
2 * lxc: linux Container library
4 * (C) Copyright IBM Corp. 2007, 2008
7 * Daniel Lezcano <dlezcano at fr.ibm.com>
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 #include <sys/types.h>
32 #include "arguments.h"
34 lxc_log_define(lxc_cgroup_ui
, lxc_cgroup
);
36 static int my_checker(const struct lxc_arguments
* args
)
39 lxc_error(args
, "missing state object");
45 static const struct option my_longopts
[] = {
49 static struct lxc_arguments my_args
= {
50 .progname
= "lxc-cgroup",
52 --name=NAME state-object [value]\n\
54 Get or set the value of a state object (for example, 'cpuset.cpus')\n\
55 in the container's cgroup for the corresponding subsystem.\n\
58 -n, --name=NAME container name",
59 .options
= my_longopts
,
61 .checker
= my_checker
,
64 int main(int argc
, char *argv
[])
66 char *state_object
= NULL
, *value
= NULL
;
68 if (lxc_arguments_parse(&my_args
, argc
, argv
))
71 if (lxc_log_init(my_args
.log_file
, my_args
.log_priority
,
72 my_args
.progname
, my_args
.quiet
))
75 state_object
= my_args
.argv
[0];
78 value
= my_args
.argv
[1];
81 if (lxc_cgroup_set(my_args
.name
, state_object
, value
)) {
82 ERROR("failed to assign '%s' value to '%s' for '%s'",
83 value
, state_object
, my_args
.name
);
87 const unsigned long len
= 4096;
91 ret
= lxc_cgroup_get(my_args
.name
, state_object
, buffer
, len
);
93 ERROR("failed to retrieve value of '%s' for '%s'",
94 state_object
, my_args
.name
);
98 printf("%*s", ret
, buffer
);