command, ack: add ack_quark()

To pass ack values around.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/ack.h b/src/ack.h
index f86b605f..440bc27d 100644
--- a/src/ack.h
+++ b/src/ack.h
@@ -20,6 +20,8 @@
 #ifndef MPD_ACK_H
 #define MPD_ACK_H
 
+#include <glib.h>
+
 enum ack {
 	ACK_ERROR_NOT_LIST = 1,
 	ACK_ERROR_ARG = 2,
@@ -36,4 +38,14 @@ enum ack {
 	ACK_ERROR_EXIST = 56,
 };
 
+/**
+ * Quark for GError.domain; the code is an enum #ack.
+ */
+G_GNUC_CONST
+static inline GQuark
+ack_quark(void)
+{
+	return g_quark_from_static_string("ack");
+}
+
 #endif