From b06f2ac384e8a91671649e8b1040bd67e5cdd016 Mon Sep 17 00:00:00 2001
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Mon, 8 Jun 2020 23:10:10 +0900
Subject: [PATCH] seq: event_cntr: add accesor APIs for the tstamp of event
 pointed by index

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 src/seq/alsaseq.map      |  2 ++
 src/seq/event-cntr.c     | 62 ++++++++++++++++++++++++++++++++++++++++
 src/seq/event-cntr.h     |  6 ++++
 tests/alsaseq-event-cntr |  2 ++
 4 files changed, 72 insertions(+)

diff --git a/src/seq/alsaseq.map b/src/seq/alsaseq.map
index e7f5b26..4f166f7 100644
--- a/src/seq/alsaseq.map
+++ b/src/seq/alsaseq.map
@@ -188,6 +188,8 @@ ALSA_GOBJECT_0_0_0 {
     "alsaseq_event_cntr_set_tag";
     "alsaseq_event_cntr_get_queue_id";
     "alsaseq_event_cntr_set_queue_id";
+    "alsaseq_event_cntr_get_tstamp";
+    "alsaseq_event_cntr_set_tstamp";
   local:
     *;
 };
diff --git a/src/seq/event-cntr.c b/src/seq/event-cntr.c
index 4b104bc..e96369e 100644
--- a/src/seq/event-cntr.c
+++ b/src/seq/event-cntr.c
@@ -605,3 +605,65 @@ void alsaseq_event_cntr_set_queue_id(ALSASeqEventCntr *self, gsize index,
 
     ev->queue = queue_id;
 }
+
+/**
+ * alsaseq_event_cntr_get_tstamp:
+ * @self: A #ALSASeqEventCntr.
+ * @index: The index of event to set.
+ * @tstamp: (out)(transfer none): The timestamp for the event. The content is
+ *          affected by the mode of tstamping.
+ * @error: A #GError.
+ *
+ * Get the timestamp of event pointed by index.
+ */
+void alsaseq_event_cntr_get_tstamp(ALSASeqEventCntr *self, gsize index,
+                                const ALSASeqTstamp **tstamp, GError **error)
+{
+    ALSASeqEventCntrPrivate *priv;
+    struct event_iterator iter;
+    struct snd_seq_event *ev;
+
+    g_return_if_fail(ALSASEQ_IS_EVENT_CNTR(self));
+    priv = alsaseq_event_cntr_get_instance_private(self);
+
+    event_iterator_init(&iter, priv->buf, priv->length, priv->allocated);
+
+    ev = event_iterator_find(&iter, index);
+    if (ev == NULL) {
+        generate_error(error, ENOENT);
+        return;
+    }
+
+    *tstamp = (const ALSASeqTstamp *)&ev->time;
+}
+
+/**
+ * alsaseq_event_cntr_set_tstamp:
+ * @self: A #ALSASeqEventCntr.
+ * @index: The index of event to set.
+ * @tstamp: The timestamp for the event. The content is affected by the mode of
+ *          tstamping.
+ * @error: A #GError.
+ *
+ * Set the timestamp for the event pointed by index.
+ */
+void alsaseq_event_cntr_set_tstamp(ALSASeqEventCntr *self, gsize index,
+                                    const ALSASeqTstamp *tstamp, GError **error)
+{
+    ALSASeqEventCntrPrivate *priv;
+    struct event_iterator iter;
+    struct snd_seq_event *ev;
+
+    g_return_if_fail(ALSASEQ_IS_EVENT_CNTR(self));
+    priv = alsaseq_event_cntr_get_instance_private(self);
+
+    event_iterator_init(&iter, priv->buf, priv->length, priv->allocated);
+
+    ev = event_iterator_find(&iter, index);
+    if (ev == NULL) {
+        generate_error(error, ENOENT);
+        return;
+    }
+
+    ev->time = *tstamp;
+}
diff --git a/src/seq/event-cntr.h b/src/seq/event-cntr.h
index 755e2e6..34916d4 100644
--- a/src/seq/event-cntr.h
+++ b/src/seq/event-cntr.h
@@ -6,6 +6,7 @@
 #include <glib-object.h>
 
 #include <seq/alsaseq-enums.h>
+#include <seq/tstamp.h>
 
 G_BEGIN_DECLS
 
@@ -95,6 +96,11 @@ void alsaseq_event_cntr_get_queue_id(ALSASeqEventCntr *self, gsize index,
 void alsaseq_event_cntr_set_queue_id(ALSASeqEventCntr *self, gsize index,
                                        guint8 queue_id, GError **error);
 
+void alsaseq_event_cntr_get_tstamp(ALSASeqEventCntr *self, gsize index,
+                                const ALSASeqTstamp **tstamp, GError **error);
+void alsaseq_event_cntr_set_tstamp(ALSASeqEventCntr *self, gsize index,
+                                    const ALSASeqTstamp *tstamp, GError **error);
+
 G_END_DECLS
 
 #endif
diff --git a/tests/alsaseq-event-cntr b/tests/alsaseq-event-cntr
index 0b9b369..55ef029 100644
--- a/tests/alsaseq-event-cntr
+++ b/tests/alsaseq-event-cntr
@@ -28,6 +28,8 @@ methods = (
     'set_tag',
     'get_queue_id',
     'set_queue_id',
+    'get_tstamp',
+    'set_tstamp',
 )
 signals = ()
 
-- 
2.47.3