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5a087e056f
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> Cc: Felix Abecassis <fabecassis@nvidia.com> Cc: Jonathan Calmels <jcalmels@nvidia.com>
115 lines
2.6 KiB
C
115 lines
2.6 KiB
C
/*
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* lxc: linux Container library
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*
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* (C) Copyright IBM Corp. 2007, 2008
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*
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* Authors:
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* Daniel Lezcano <daniel.lezcano at free.fr>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include "cgroup.h"
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#include "conf.h"
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#include "initutils.h"
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#include "log.h"
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#include "start.h"
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lxc_log_define(cgroup, lxc);
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extern struct cgroup_ops *cgfsng_ops_init(struct lxc_conf *conf);
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struct cgroup_ops *cgroup_init(struct lxc_conf *conf)
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{
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struct cgroup_ops *cgroup_ops;
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cgroup_ops = cgfsng_ops_init(conf);
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if (!cgroup_ops) {
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ERROR("Failed to initialize cgroup driver");
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return NULL;
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}
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if (!cgroup_ops->data_init(cgroup_ops))
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return NULL;
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TRACE("Initialized cgroup driver %s", cgroup_ops->driver);
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if (cgroup_ops->cgroup_layout == CGROUP_LAYOUT_LEGACY)
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TRACE("Running with legacy cgroup layout");
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else if (cgroup_ops->cgroup_layout == CGROUP_LAYOUT_HYBRID)
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TRACE("Running with hybrid cgroup layout");
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else if (cgroup_ops->cgroup_layout == CGROUP_LAYOUT_UNIFIED)
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TRACE("Running with unified cgroup layout");
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else
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WARN("Running with unknown cgroup layout");
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return cgroup_ops;
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}
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void cgroup_exit(struct cgroup_ops *ops)
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{
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char **cur;
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struct hierarchy **it;
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if (!ops)
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return;
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for (cur = ops->cgroup_use; cur && *cur; cur++)
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free(*cur);
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free(ops->cgroup_pattern);
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free(ops->container_cgroup);
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for (it = ops->hierarchies; it && *it; it++) {
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char **ctrlr;
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for (ctrlr = (*it)->controllers; ctrlr && *ctrlr; ctrlr++)
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free(*ctrlr);
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free((*it)->controllers);
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free((*it)->mountpoint);
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free((*it)->base_cgroup);
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free((*it)->fullcgpath);
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free(*it);
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}
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free(ops->hierarchies);
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return;
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}
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#define INIT_SCOPE "/init.scope"
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void prune_init_scope(char *cg)
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{
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char *point;
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if (!cg)
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return;
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point = cg + strlen(cg) - strlen(INIT_SCOPE);
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if (point < cg)
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return;
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if (strcmp(point, INIT_SCOPE) == 0) {
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if (point == cg)
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*(point + 1) = '\0';
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else
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*point = '\0';
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}
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}
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