udev: update docs, NEWS

NEWS

@@ -28,6 +28,12 @@ CHANGES WITH 182:
           to adapt to that, create symlink, or rename the binary after building
           it.
 
+        * Libudev does no longer provide these symbols:
+            udev_monitor_from_socket()
+            udev_queue_get_failed_list_entry()
+            udev_get_{dev,sys,run}_path()
+          The verions number was bumped and symbol versioning introduced.
+
         * systemd-logingctl and systemd-journalctl have been renamed
           to logingctl and journalctl to match systemctl.
 

src/libudev/libudev-device.c

@@ -1022,6 +1022,7 @@ _public_ struct udev_device *udev_device_ref(struct udev_device *udev_device)
  * Drop a reference of a udev device. If the refcount reaches zero,
  * the resources of the device will be released.
  *
+ * Returns: the passed udev device if it has still an active reference, or #NULL otherwise.
  **/
 _public_ struct udev_device *udev_device_unref(struct udev_device *udev_device)
 {

src/libudev/libudev-enumerate.c

@@ -111,6 +111,8 @@ _public_ struct udev_enumerate *udev_enumerate_ref(struct udev_enumerate *udev_e
  *
  * Drop a reference of an enumeration context. If the refcount reaches zero,
  * all resources of the enumeration context will be released.
+ *
+ * Returns: the passed enumeration context if it has still an active reference, or #NULL otherwise.
  **/
 _public_ struct udev_enumerate *udev_enumerate_unref(struct udev_enumerate *udev_enumerate)
 {

src/libudev/libudev-monitor.c

@@ -400,6 +400,7 @@ _public_ struct udev_monitor *udev_monitor_ref(struct udev_monitor *udev_monitor
  * the bound socket will be closed, and the resources of the monitor
  * will be released.
  *
+ * Returns: the passed udev monitor if it has still an active reference, or #NULL otherwise.
  **/
 _public_ struct udev_monitor *udev_monitor_unref(struct udev_monitor *udev_monitor)
 {

src/libudev/libudev-queue.c

@@ -92,6 +92,8 @@ _public_ struct udev_queue *udev_queue_ref(struct udev_queue *udev_queue)
  *
  * Drop a reference of a udev queue context. If the refcount reaches zero,
  * the resources of the queue context will be released.
+ *
+ * Returns: the passed queue context if it has still an active reference, or #NULL otherwise.
  **/
 _public_ struct udev_queue *udev_queue_unref(struct udev_queue *udev_queue)
 {

src/libudev/libudev.c

@@ -221,6 +221,7 @@ _public_ struct udev *udev_ref(struct udev *udev)
  * Drop a reference of the udev library context. If the refcount
  * reaches zero, the resources of the context will be released.
  *
+ * Returns: the passed udev library context if it has still an active reference, or #NULL otherwise.
  **/
 _public_ struct udev *udev_unref(struct udev *udev)
 {