Copyright 2011 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ 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
- General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU General Public License
+ 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 "cgroup-attr.h"
#include "cgroup-util.h"
#include "list.h"
+#include "fileio.h"
int cgroup_attribute_apply(CGroupAttribute *a, CGroupBonding *b) {
+ _cleanup_free_ char *path = NULL, *v = NULL;
int r;
- char *path = NULL;
- char *v = NULL;
assert(a);
if (!b)
return 0;
- if (a->map_callback) {
- r = a->map_callback(a->controller, a->name, a->value, &v);
+ if (a->semantics && a->semantics->map_write) {
+ r = a->semantics->map_write(a->semantics, a->value, &v);
if (r < 0)
return r;
}
r = cg_get_path(a->controller, b->path, a->name, &path);
- if (r < 0) {
- free(v);
+ if (r < 0)
return r;
- }
r = write_one_line_file(path, v ? v : a->value);
if (r < 0)
log_warning("Failed to write '%s' to %s: %s", v ? v : a->value, path, strerror(-r));
- free(path);
- free(v);
-
return r;
}
return r;
}
-CGroupAttribute *cgroup_attribute_find_list(CGroupAttribute *first, const char *controller, const char *name) {
+bool cgroup_attribute_matches(CGroupAttribute *a, const char *controller, const char *name) {
+ assert(a);
+
+ if (controller) {
+ if (streq(a->controller, controller) && (!name || streq(a->name, name)))
+ return true;
+
+ } else if (!name)
+ return true;
+ else if (streq(a->name, name)) {
+ size_t x, y;
+ x = strlen(a->controller);
+ y = strlen(name);
+
+ if (y > x &&
+ memcmp(a->controller, name, x) == 0 &&
+ name[x] == '.')
+ return true;
+ }
+
+ return false;
+}
+
+CGroupAttribute *cgroup_attribute_find_list(
+ CGroupAttribute *first,
+ const char *controller,
+ const char *name) {
CGroupAttribute *a;
- assert(controller);
assert(name);
LIST_FOREACH(by_unit, a, first)
- if (streq(a->controller, controller) &&
- streq(a->name, name))
+ if (cgroup_attribute_matches(a, controller, name))
return a;
return NULL;
}
-static void cgroup_attribute_free(CGroupAttribute *a) {
+void cgroup_attribute_free(CGroupAttribute *a) {
assert(a);
+ if (a->unit)
+ LIST_REMOVE(CGroupAttribute, by_unit, a->unit->cgroup_attributes, a);
+
free(a->controller);
free(a->name);
free(a->value);
LIST_FOREACH_SAFE(by_unit, a, n, first)
cgroup_attribute_free(a);
}
+
+void cgroup_attribute_free_some(CGroupAttribute *first, const char *controller, const char *name) {
+ CGroupAttribute *a, *n;
+
+ LIST_FOREACH_SAFE(by_unit, a, n, first)
+ if (cgroup_attribute_matches(a, controller, name))
+ cgroup_attribute_free(a);
+}