1 files changed, 12 insertions, 2 deletions
diff --git a/src/core/device.h b/src/core/device.h
index 906508530d..9f46e08953 100644
--- a/src/core/device.h
+++ b/src/core/device.h
@@ -28,20 +28,28 @@ typedef struct Device Device;
  * simplifies the state engine greatly */
 typedef enum DeviceState {
         DEVICE_DEAD,
-        DEVICE_PLUGGED,
+        DEVICE_TENTATIVE, /* mounted or swapped, but not (yet) announced by udev */
+        DEVICE_PLUGGED,   /* announced by udev */
         _DEVICE_STATE_MAX,
         _DEVICE_STATE_INVALID = -1
 } DeviceState;
 
+typedef enum DeviceFound {
+        DEVICE_NOT_FOUND = 0,
+        DEVICE_FOUND_UDEV = 1,
+        DEVICE_FOUND_MOUNT = 2,
+        DEVICE_FOUND_SWAP = 4,
+} DeviceFound;
+
 struct Device {
         Unit meta;
 
         char *sysfs;
+        DeviceFound found;
 
         /* In order to be able to distinguish dependencies on
         different device nodes we might end up creating multiple
         devices for the same sysfs path. We chain them up here. */
-
         LIST_FIELDS(struct Device, same_sysfs);
 
         DeviceState state;
@@ -51,3 +59,5 @@ extern const UnitVTable device_vtable;
 
 const char* device_state_to_string(DeviceState i) _const_;
 DeviceState device_state_from_string(const char *s) _pure_;
+
+int device_found_node(Manager *m, const char *node, bool add, DeviceFound found, bool now);