+ JOB_RESTART, /* If running, stop. Then start unconditionally. */
+
+ _JOB_TYPE_MAX_MERGING,
+
+ /* JOB_NOP can enter into a transaction, but as it won't pull in
+ * any dependencies and it uses the special 'nop_job' slot in Unit,
+ * it won't have to merge with anything (except possibly into another
+ * JOB_NOP, previously installed). JOB_NOP is special-cased in
+ * job_type_is_*() functions so that the transaction can be
+ * activated. */
+ JOB_NOP = _JOB_TYPE_MAX_MERGING, /* do nothing */
+
+ _JOB_TYPE_MAX_IN_TRANSACTION,
+
+ /* JOB_TRY_RESTART can never appear in a transaction, because
+ * it always collapses into JOB_RESTART or JOB_NOP before entering.
+ * Thus we never need to merge it with anything. */
+ JOB_TRY_RESTART = _JOB_TYPE_MAX_IN_TRANSACTION, /* if running, stop and then start */
+
+ /* JOB_RELOAD_OR_START won't enter into a transaction and cannot result
+ * from transaction merging (there's no way for JOB_RELOAD and
+ * JOB_START to meet in one transaction). It can result from a merge
+ * during job installation, but then it will immediately collapse into
+ * one of the two simpler types. */
+ JOB_RELOAD_OR_START, /* if running, reload, otherwise start */