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-rw-r--r--src/shared/cgroup-label.c82
1 files changed, 82 insertions, 0 deletions
diff --git a/src/shared/cgroup-label.c b/src/shared/cgroup-label.c
new file mode 100644
index 0000000000..beeeec5830
--- /dev/null
+++ b/src/shared/cgroup-label.c
@@ -0,0 +1,82 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd 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.
+
+ systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <unistd.h>
+#include <signal.h>
+#include <string.h>
+#include <stdlib.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <ftw.h>
+
+#include "cgroup-util.h"
+#include "log.h"
+#include "set.h"
+#include "macro.h"
+#include "util.h"
+#include "mkdir.h"
+
+int cg_create(const char *controller, const char *path) {
+ char *fs;
+ int r;
+
+ assert(controller);
+ assert(path);
+
+ r = cg_get_path_and_check(controller, path, NULL, &fs);
+ if (r < 0)
+ return r;
+
+ r = mkdir_parents_label(fs, 0755);
+
+ if (r >= 0) {
+ if (mkdir(fs, 0755) >= 0)
+ r = 1;
+ else if (errno == EEXIST)
+ r = 0;
+ else
+ r = -errno;
+ }
+
+ free(fs);
+
+ return r;
+}
+
+int cg_create_and_attach(const char *controller, const char *path, pid_t pid) {
+ int r, q;
+
+ assert(controller);
+ assert(path);
+ assert(pid >= 0);
+
+ if ((r = cg_create(controller, path)) < 0)
+ return r;
+
+ if ((q = cg_attach(controller, path, pid)) < 0)
+ return q;
+
+ /* This does not remove the cgroup on failure */
+
+ return r;
+}