From 59dd9b83331c93d5e5af0b41fafe3f6fb41a694b Mon Sep 17 00:00:00 2001
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Mon, 18 Nov 2019 13:22:44 +0900
Subject: [PATCH] ctl: elem_id: add GObject derived object for identifier of
 control element

---
 src/ctl/alsactl.map |  2 ++
 src/ctl/elem-id.c   |  9 +++++++++
 src/ctl/elem-id.h   | 20 ++++++++++++++++++++
 src/ctl/meson.build |  2 ++
 4 files changed, 33 insertions(+)
 create mode 100644 src/ctl/elem-id.c
 create mode 100644 src/ctl/elem-id.h

diff --git a/src/ctl/alsactl.map b/src/ctl/alsactl.map
index 8cd4703..1abe9b2 100644
--- a/src/ctl/alsactl.map
+++ b/src/ctl/alsactl.map
@@ -17,6 +17,8 @@ ALSA_GOBJECT_0_0_0 {
     "alsactl_card_get_info";
 
     "alsactl_card_info_get_type";
+
+    "alsactl_elem_id_get_type";
   local:
     *;
 };
diff --git a/src/ctl/elem-id.c b/src/ctl/elem-id.c
new file mode 100644
index 0000000..d0ab59b
--- /dev/null
+++ b/src/ctl/elem-id.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: LGPL-3.0-or-later
+#include "elem-id.h"
+
+ALSACtlElemId *ctl_elem_id_copy(const ALSACtlElemId *self)
+{
+    return g_memdup(self, sizeof(*self));
+}
+
+G_DEFINE_BOXED_TYPE(ALSACtlElemId, alsactl_elem_id, ctl_elem_id_copy, g_free);
diff --git a/src/ctl/elem-id.h b/src/ctl/elem-id.h
new file mode 100644
index 0000000..7d62c53
--- /dev/null
+++ b/src/ctl/elem-id.h
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: LGPL-3.0-or-later
+#ifndef __ALSA_GOBJECT_ALSACTL_ELEM_ID__H__
+#define __ALSA_GOBJECT_ALSACTL_ELEM_ID__H__
+
+#include <glib.h>
+#include <glib-object.h>
+
+#include <sound/asound.h>
+
+G_BEGIN_DECLS
+
+#define ALSACTL_TYPE_ELEM_ID    (alsactl_elem_id_get_type())
+
+typedef struct snd_ctl_elem_id ALSACtlElemId;
+
+GType alsactl_elem_id_get_type() G_GNUC_CONST;
+
+G_END_DECLS
+
+#endif
diff --git a/src/ctl/meson.build b/src/ctl/meson.build
index 00c61f5..817930a 100644
--- a/src/ctl/meson.build
+++ b/src/ctl/meson.build
@@ -12,12 +12,14 @@ sources = files(
   'query.c',
   'card.c',
   'card-info.c',
+  'elem-id.c',
 )
 
 headers = files(
   'query.h',
   'card.h',
   'card-info.h',
+  'elem-id.h',
 )
 
 privates = files(
-- 
2.47.3