Signal handlers require signo to be public

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

private.h

@@ -68,11 +68,6 @@ struct uev;
 			int timeout;				\
 			int period;				\
 		} t;						\
-								\
-		/* Signal watchers */				\
-		struct {					\
-			int signo;				\
-		} s;						\
 	} u;							\
 								\
 	/* Watcher type */					\

signal.c

@@ -87,7 +87,7 @@ int uev_signal_set(uev_t *w, int signo)
 	}
 
 	/* Remember for callbacks and start/stop */
-	w->u.s.signo = signo;
+	w->signo = signo;
 
 	/* Handle stopped signal watchers */
 	if (w->fd < 0) {
@@ -129,7 +129,7 @@ int uev_signal_start(uev_t *w)
 	if (-1 != w->fd)
 		uev_signal_stop(w);
 
-	return uev_signal_set(w, w->u.s.signo);
+	return uev_signal_set(w, w->signo);
 }
 
 /**

uev.h

@@ -46,6 +46,7 @@ typedef struct uev {
 	uev_private_t   type;
 
 	/* Public data for users to reference  */
+	int             signo;
 	int             fd;
 	uev_ctx_t      *ctx;
 } uev_t;