Make command exec functions return an enum rather than -1/0/1 values and

add a new value to mean "leave client running but don't attach" to fix
problems with using some commands in a command sequence. Most of the
work by Thomas Adam, problem reported by "jspenguin" on SF bug 3535531.

1 files changed, 7 insertions, 7 deletions

diff --git a/cmd-display-message.c b/cmd-display-message.c
index 3bc3a38c..1aed4f1d 100644
--- a/cmd-display-message.c
+++ b/cmd-display-message.c
@@ -27,7 +27,7 @@
  * Displays a message in the status line.
  */
 
-int	cmd_display_message_exec(struct cmd *, struct cmd_ctx *);
+enum cmd_retval	 cmd_display_message_exec(struct cmd *, struct cmd_ctx *);
 
 const struct cmd_entry cmd_display_message_entry = {
 	"display-message", "display",
@@ -39,7 +39,7 @@ const struct cmd_entry cmd_display_message_entry = {
 	cmd_display_message_exec
 };
 
-int
+enum cmd_retval
 cmd_display_message_exec(struct cmd *self, struct cmd_ctx *ctx)
 {
 	struct args		*args = self->args;
@@ -55,21 +55,21 @@ cmd_display_message_exec(struct cmd *self, struct cmd_ctx *ctx)
 	size_t			 len;
 
 	if ((c = cmd_find_client(ctx, args_get(args, 'c'))) == NULL)
-		return (-1);
+		return (CMD_RETURN_ERROR);
 
 	if (args_has(args, 't')) {
 		wl = cmd_find_pane(ctx, args_get(args, 't'), &s, &wp);
 		if (wl == NULL)
-			return (-1);
+			return (CMD_RETURN_ERROR);
 	} else {
 		wl = cmd_find_pane(ctx, NULL, &s, &wp);
 		if (wl == NULL)
-			return (-1);
+			return (CMD_RETURN_ERROR);
 	}
 
 	if (args_has(args, 'F') && args->argc != 0) {
 		ctx->error(ctx, "only one of -F or argument must be given");
-		return (-1);
+		return (CMD_RETURN_ERROR);
 	}
 
 	template = args_get(args, 'F');
@@ -96,5 +96,5 @@ cmd_display_message_exec(struct cmd *self, struct cmd_ctx *ctx)
 
 	free(msg);
 	format_free(ft);
-	return (0);
+	return (CMD_RETURN_NORMAL);
 }