Imported Upstream version 204

1 files changed, 43 insertions, 0 deletions

diff --git a/src/core/cgroup-semantics.h b/src/core/cgroup-semantics.h
new file mode 100644
index 0000000000..4f848f4bb7
--- /dev/null
+++ b/src/core/cgroup-semantics.h
@@ -0,0 +1,43 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright 2011 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/>.
+***/
+
+typedef struct CGroupSemantics CGroupSemantics;
+
+struct CGroupSemantics {
+        const char *controller;
+        const char *name;
+        const char *pretty;
+
+        bool multiple;
+
+        /* This call is used for parsing the pretty value to the actual attribute value */
+        int (*map_pretty)(const CGroupSemantics *semantics, const char *value, char **ret);
+
+        /* Right before writing this attribute the attribute value is converted to a low-level value */
+        int (*map_write)(const CGroupSemantics *semantics, const char *value, char **ret);
+
+        /* If this attribute takes a list, this call can be used to reset the list to empty */
+        int (*reset)(const CGroupSemantics *semantics, const char *group);
+};
+
+int cgroup_semantics_find(const char *controller, const char *name, const char *value, char **ret, const CGroupSemantics **semantics);