mirror of
https://git.proxmox.com/git/mirror_lxc
synced 2025-08-15 06:06:57 +00:00
Renamed lxc_cgroup
This commit is contained in:
dlezcano
parent
5f58350a16
commit
0a5acaf2e1
@ -1,189 +0,0 @@
|
||||
/*
|
||||
* lxc: linux Container library
|
||||
*
|
||||
* (C) Copyright IBM Corp. 2007, 2008
|
||||
*
|
||||
* Authors:
|
||||
* Daniel Lezcano <dlezcano at fr.ibm.com>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This 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
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
#define _GNU_SOURCE
|
||||
#include <stdio.h>
|
||||
#undef _GNU_SOURCE
|
||||
#include <stdlib.h>
|
||||
#include <errno.h>
|
||||
#include <mntent.h>
|
||||
#include <unistd.h>
|
||||
#include <string.h>
|
||||
#include <fcntl.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <sys/param.h>
|
||||
#include <sys/inotify.h>
|
||||
#include <netinet/in.h>
|
||||
#include <net/if.h>
|
||||
|
||||
#include <lxc.h>
|
||||
#include <log.h>
|
||||
|
||||
#define MAXPRIOLEN 24
|
||||
#define MTAB "/etc/mtab"
|
||||
|
||||
static int get_cgroup_mount(const char *mtab, char *mnt)
|
||||
{
|
||||
struct mntent *mntent;
|
||||
FILE *file = NULL;
|
||||
int err = -1;
|
||||
|
||||
file = setmntent(mtab, "r");
|
||||
if (!file) {
|
||||
lxc_log_syserror("failed to open %s", mtab);
|
||||
goto out;
|
||||
}
|
||||
|
||||
while ((mntent = getmntent(file))) {
|
||||
if (strcmp(mntent->mnt_fsname, "cgroup"))
|
||||
continue;
|
||||
strcpy(mnt, mntent->mnt_dir);
|
||||
err = 0;
|
||||
break;
|
||||
};
|
||||
|
||||
fclose(file);
|
||||
out:
|
||||
return err;
|
||||
}
|
||||
|
||||
int lxc_link_nsgroup(const char *name, pid_t pid)
|
||||
{
|
||||
char *lxc, *nsgroup, cgroup[MAXPATHLEN];
|
||||
int ret;
|
||||
|
||||
if (get_cgroup_mount(MTAB, cgroup)) {
|
||||
lxc_log_info("cgroup is not mounted");
|
||||
return -1;
|
||||
}
|
||||
|
||||
asprintf(&lxc, LXCPATH "/%s/nsgroup", name);
|
||||
asprintf(&nsgroup, "%s/%d", cgroup, pid);
|
||||
|
||||
unlink(lxc);
|
||||
ret = symlink(nsgroup, lxc);
|
||||
if (ret)
|
||||
lxc_log_syserror("failed to create symlink %s->%s",
|
||||
nsgroup, lxc);
|
||||
free(lxc);
|
||||
free(nsgroup);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int lxc_unlink_nsgroup(const char *name)
|
||||
{
|
||||
char *nsgroup;
|
||||
int ret;
|
||||
|
||||
asprintf(&nsgroup, LXCPATH "/%s/nsgroup", name);
|
||||
ret = unlink(nsgroup);
|
||||
free(nsgroup);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int lxc_set_priority(const char *name, int priority)
|
||||
{
|
||||
int fd;
|
||||
char *path = NULL, *prio = NULL;
|
||||
|
||||
asprintf(&path, LXCPATH "/%s/nsgroup/cpu.shares", name);
|
||||
|
||||
fd = open(path, O_WRONLY);
|
||||
if (fd < 0) {
|
||||
lxc_log_syserror("failed to open '%s'", path);
|
||||
goto out;
|
||||
}
|
||||
|
||||
asprintf(&prio, "%d", priority);
|
||||
|
||||
if (write(fd, prio, strlen(prio) + 1) < 0) {
|
||||
lxc_log_syserror("failed to write to '%s'", path);
|
||||
close(fd);
|
||||
goto out;
|
||||
}
|
||||
|
||||
close(fd);
|
||||
out:
|
||||
free(path);
|
||||
free(prio);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int lxc_get_priority(const char *name, int *priority)
|
||||
{
|
||||
int fd, ret = -1;
|
||||
char *path, prio[MAXPRIOLEN];
|
||||
|
||||
asprintf(&path, LXCPATH "/%s/nsgroup/cpu.shares", name);
|
||||
|
||||
fd = open(path, O_RDONLY);
|
||||
if (fd < 0) {
|
||||
lxc_log_syserror("failed to open '%s'", path);
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (read(fd, prio, MAXPRIOLEN) < 0) {
|
||||
lxc_log_syserror("failed to read from '%s'", path);
|
||||
close(fd);
|
||||
goto out;
|
||||
}
|
||||
|
||||
close(fd);
|
||||
*priority = atoi(prio);
|
||||
|
||||
ret = 0;
|
||||
out:
|
||||
free(path);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int lxc_set_memory(const char *name, size_t memmax)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
int lxc_get_memory(const char *name, size_t *memmax)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
int lxc_get_memstat(const char *name, struct lxc_mem_stat *memstat)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
int lxc_set_cpuset(const char *name, long *cpumask, int len, int shared)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
int lxc_get_cpuset(const char *name, long *cpumask, int len, int *shared)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
int lxc_get_cpu_usage(const char *name, long long *usage)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
@ -1,30 +0,0 @@
|
||||
/*
|
||||
* lxc: linux Container library
|
||||
*
|
||||
* (C) Copyright IBM Corp. 2007, 2008
|
||||
*
|
||||
* Authors:
|
||||
* Daniel Lezcano <dlezcano at fr.ibm.com>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This 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
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
#ifndef _cgroup_h
|
||||
#define _cgroup_h
|
||||
|
||||
int lxc_get_cgroup_mount(const char *mtab, char *mnt);
|
||||
int lxc_link_nsgroup(const char *name, pid_t pid);
|
||||
int lxc_unlink_nsgroup(const char *name);
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user