* Licensed under the GPL v2. For licencing details see COPYING.
*/
-/** The state of snapshot creation. */
-enum {
+/** The possible states for snapshot creation/removal. */
+enum hook_status {
/** We are ready to take the next snapshot. */
- SCS_READY,
- /** The pre-creation hook has been started. */
- SCS_PRE_HOOK_RUNNING,
- /** The pre-creation hook exited successfully. */
- SCS_PRE_HOOK_SUCCESS,
- /** The rsync process is running. */
- SCS_RSYNC_RUNNING,
- /** The rsync process exited successfully. */
- SCS_RSYNC_SUCCESS,
- /** The rsync process needs to be restarted. */
- SCS_RSYNC_NEEDS_RESTART,
- /** The post-create hook has been started. */
- SCS_POST_HOOK_RUNNING,
-};
-
-/** The state of snapshot removal. */
-enum {
- /** No snapshot is currently being removed. */
- SRS_READY,
- /** The pre-removal hook has been started. */
- SRS_PRE_HOOK_RUNNING,
- /** The pre-remove hook failed, we're waiting to execute it again. */
- SRS_PRE_HOOK_FAILURE,
- /** The rm command is currently executing. */
- SRS_RM_RUNNING,
- /** The post-remove hook ist running. */
- SRS_POST_HOOK_RUNNING,
+ HS_READY,
+ /** The pre-create/pre-remove hook has been started. */
+ HS_PRE_RUNNING,
+ /** The pre-create/pre-remove hook exited successfully. */
+ HS_PRE_SUCCESS,
+ /** The rsync/rm process is running. */
+ HS_RUNNING,
+ /** The rsync/rm process exited successfully. */
+ HS_SUCCESS,
+ /** The rsync/rm process needs to be restarted. */
+ HS_NEEDS_RESTART,
+ /** The post-create/post-remove hook has been started. */
+ HS_POST_RUNNING,
};
/**
return NULL;
return sl->snapshots[0];
}
+
+/**
+ * Get the newest snapshot in a snapshot list.
+ */
+_static_inline_ struct snapshot *get_newest_snapshot(struct snapshot_list *sl)
+{
+ if (!sl->num_snapshots)
+ return NULL;
+ return sl->snapshots[sl->num_snapshots - 1];
+}