Dynamically manage service states based on user defined conditions

Old event system has been replaced with a more generic condition
concept. The idea is that finit plugins may provide arbitrary
conditions that services may specify as dependencies that they require
to run.

In order to accomodate this, the service management has been
redesigned to use a state machine.

svc.c

@@ -406,36 +406,32 @@ int svc_clean_bootstrap(svc_t *svc)
 
 char *svc_status(svc_t *svc)
 {
-	if (!svc_in_runlevel(svc, runlevel))
-		return "halted";
-
 	switch (svc->state) {
+	case SVC_HALTED_STATE:
+		switch (svc->block) {
+		case SVC_BLOCK_NONE:
+			return "halted";
+		case SVC_BLOCK_MISSING:
+			return "missing";
+		case SVC_BLOCK_CRASHING:
+			return "crashing";
+		case SVC_BLOCK_USER:
+			return "blocked";
+		}
+	case SVC_DONE_STATE:
+		return "done";
+	case SVC_STOPPING_STATE:
+		return "stopping";
 	case SVC_WAITING_STATE:
 		return "waiting";
-
-	case SVC_PAUSED_STATE:
-		return "stopped";
-
-	case SVC_CONDHALT_STATE:
-		return "nocond";
-
-	case SVC_RESTART_STATE:
-		return "restart";
-
-	case SVC_RELOAD_STATE:
-		return "reload";
-
+	case SVC_READY_STATE:
+		return "ready";
 	case SVC_RUNNING_STATE:
-		if (svc->pid)
-			return "running";
-		/* Fall through */
+		return "running";
 
-	case SVC_HALTED_STATE:
 	default:
-		break;
+		return "UNKNOWN";
 	}
-
-	return "halted";
 }
 
 /* Same base service, return unique ID */