From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Sun, 1 Dec 2019 03:00:24 +0000 (+0900)
Subject: rawmidi: stream_pair: add GObject signal to handle disconnection of sound card
X-Git-Tag: v0.1.0~167
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=198dd9b37593278df91e8d557a19531bab2e40bf;p=alsa-gobject.git

rawmidi: stream_pair: add GObject signal to handle disconnection of sound card

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---

diff --git a/src/rawmidi/stream-pair.c b/src/rawmidi/stream-pair.c
index 73a26aa..7459615 100644
--- a/src/rawmidi/stream-pair.c
+++ b/src/rawmidi/stream-pair.c
@@ -31,6 +31,7 @@ static GParamSpec *rawmidi_stream_pair_props[RAWMIDI_STREAM_PAIR_PROP_COUNT] = {
 
 enum rawmidi_stream_pair_sig_type {
     RAWMIDI_STREAM_PAIR_SIG_HANDLE_MESSAGES = 0,
+    RAWMIDI_STREAM_PAIR_SIG_DISCONNECTION,
     RAWMIDI_STREAM_PAIR_SIG_COUNT,
 };
 static guint rawmidi_stream_pair_sigs[RAWMIDI_STREAM_PAIR_SIG_COUNT] = { 0 };
@@ -96,6 +97,24 @@ static void alsarawmidi_stream_pair_class_init(ALSARawmidiStreamPairClass *klass
                      NULL, NULL,
                      g_cclosure_marshal_VOID__VOID,
                      G_TYPE_NONE, 0, NULL);
+
+    /**
+     * ALSARawmidiStreamPair::handle-disconnection:
+     * @self: A #ALSARawmidiStreamPair.
+     *
+     * When the sound card is not available anymore due to unbinding driver or
+     * hot unplugging, this signal is emit. The owner of this object should
+     * call g_object_free() as quickly as possible to release ALSA rawmidi
+     * character device.
+     */
+    rawmidi_stream_pair_sigs[RAWMIDI_STREAM_PAIR_SIG_DISCONNECTION] =
+        g_signal_new("handle-disconnection",
+                     G_OBJECT_CLASS_TYPE(klass),
+                     G_SIGNAL_RUN_LAST,
+                     0,
+                     NULL, NULL,
+                     g_cclosure_marshal_VOID__VOID,
+                     G_TYPE_NONE, 0, G_TYPE_NONE, 0);
 }
 
 static void alsarawmidi_stream_pair_init(ALSARawmidiStreamPair *self)
diff --git a/tests/alsarawmidi-stream-pair b/tests/alsarawmidi-stream-pair
index 21e79ab..2751836 100644
--- a/tests/alsarawmidi-stream-pair
+++ b/tests/alsarawmidi-stream-pair
@@ -28,6 +28,7 @@ methods = (
 )
 signals = (
     'handle-messages',
+    'handle-disconnection',
 )
 
 if not test(target, props, methods, signals):