udev: event - introduce and use internal udev_device_shallow_clone()

2 files changed, 22 insertions, 0 deletions

diff --git a/src/libudev/libudev-device.c b/src/libudev/libudev-device.c
index 193c706d89..08331a2329 100644
--- a/src/libudev/libudev-device.c
+++ b/src/libudev/libudev-device.c
@@ -1944,3 +1944,24 @@ int udev_device_rename(struct udev_device *udev_device, const char *name)
 
         return 0;
 }
+
+struct udev_device *udev_device_shallow_clone(struct udev_device *old_device)
+{
+        struct udev_device *device;
+
+        if (old_device == NULL)
+                return NULL;
+
+        device = udev_device_new(old_device->udev);
+        if (!device) {
+                errno = ENOMEM;
+
+                return NULL;
+        }
+
+        udev_device_set_syspath(device, udev_device_get_syspath(old_device));
+        udev_device_set_subsystem(device, udev_device_get_subsystem(old_device));
+        udev_device_set_devnum(device, udev_device_get_devnum(old_device));
+
+        return device;
+}
diff --git a/src/libudev/libudev-private.h b/src/libudev/libudev-private.h
index 017b6cc63b..31f150c764 100644
--- a/src/libudev/libudev-private.h
+++ b/src/libudev/libudev-private.h
@@ -38,6 +38,7 @@ int udev_get_rules_path(struct udev *udev, char **path[], usec_t *ts_usec[]);
 
 /* libudev-device.c */
 struct udev_device *udev_device_new(struct udev *udev);
+struct udev_device *udev_device_shallow_clone(struct udev_device *old_device);
 mode_t udev_device_get_devnode_mode(struct udev_device *udev_device);
 uid_t udev_device_get_devnode_uid(struct udev_device *udev_device);
 gid_t udev_device_get_devnode_gid(struct udev_device *udev_device);