core: add ManagedOOM*= properties to configure systemd-oomd on the unit

This adds the hook ups so it can be read with the usual systemd
utilities. Used in later commits by sytemd-oomd.

1 files changed, 29 insertions, 0 deletions

diff --git a/src/core/dbus-util.c b/src/core/dbus-util.c
index 951450e53d..f534001a9c 100644
--- a/src/core/dbus-util.c
+++ b/src/core/dbus-util.c
@@ -91,6 +91,35 @@ int bus_set_transient_bool(
         return 1;
 }
 
+int bus_set_transient_percent(
+                Unit *u,
+                const char *name,
+                int *p,
+                sd_bus_message *message,
+                UnitWriteFlags flags,
+                sd_bus_error *error) {
+
+        const char *v;
+        int r;
+
+        assert(p);
+
+        r = sd_bus_message_read(message, "s", &v);
+        if (r < 0)
+                return r;
+
+        r = parse_percent(v);
+        if (r < 0)
+                return r;
+
+        if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
+                *p = r;
+                unit_write_settingf(u, flags, name, "%s=%d%%", name, r);
+        }
+
+        return 1;
+}
+
 int bus_set_transient_usec_internal(
                 Unit *u,
                 const char *name,