From aca5ae8abccd60718c0d6ad0a6058ac8924f4de6 Mon Sep 17 00:00:00 2001
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Sun, 9 Feb 2020 12:20:53 +0900
Subject: [PATCH] timer: user_instance: add an API to get status of instance

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 src/timer/alsatimer.map       |  1 +
 src/timer/instance-status.c   |  9 +++++++++
 src/timer/privates.h          |  4 ++++
 src/timer/user-instance.c     | 27 +++++++++++++++++++++++++++
 src/timer/user-instance.h     |  5 +++++
 tests/alsatimer-user-instance |  1 +
 6 files changed, 47 insertions(+)

diff --git a/src/timer/alsatimer.map b/src/timer/alsatimer.map
index c3939c1..c02c809 100644
--- a/src/timer/alsatimer.map
+++ b/src/timer/alsatimer.map
@@ -34,6 +34,7 @@ ALSA_GOBJECT_0_0_0 {
     "alsatimer_user_instance_attach_as_slave";
     "alsatimer_user_instance_get_info";
     "alsatimer_user_instance_set_params";
+    "alsatimer_user_instance_get_status";
 
     "alsatimer_instance_info_get_type";
 
diff --git a/src/timer/instance-status.c b/src/timer/instance-status.c
index 85763cc..d06dbd1 100644
--- a/src/timer/instance-status.c
+++ b/src/timer/instance-status.c
@@ -109,3 +109,12 @@ void alsatimer_instance_status_get_timestamp(ALSATimerInstanceStatus *self,
     *tv_nsec = (guint)priv->status.tstamp.tv_nsec;
 
 }
+
+void timer_instance_status_refer_private(ALSATimerInstanceStatus *self,
+                                         struct snd_timer_status **status)
+{
+    ALSATimerInstanceStatusPrivate *priv =
+                        alsatimer_instance_status_get_instance_private(self);
+
+    *status = &priv->status;
+}
diff --git a/src/timer/privates.h b/src/timer/privates.h
index d76ca51..87d3dcc 100644
--- a/src/timer/privates.h
+++ b/src/timer/privates.h
@@ -7,6 +7,7 @@
 #include "device-params.h"
 #include "instance-info.h"
 #include "instance-params.h"
+#include "instance-status.h"
 
 #include <sound/asound.h>
 
@@ -33,6 +34,9 @@ void timer_instance_info_refer_private(ALSATimerInstanceInfo *self,
 void timer_instance_params_refer_private(ALSATimerInstanceParams *self,
                                          struct snd_timer_params **params);
 
+void timer_instance_status_refer_private(ALSATimerInstanceStatus *self,
+                                         struct snd_timer_status **status);
+
 G_END_DECLS
 
 #endif
diff --git a/src/timer/user-instance.c b/src/timer/user-instance.c
index 231bd72..f5ff2c1 100644
--- a/src/timer/user-instance.c
+++ b/src/timer/user-instance.c
@@ -180,3 +180,30 @@ void alsatimer_user_instance_set_params(ALSATimerUserInstance *self,
     if (ioctl(priv->fd, SNDRV_TIMER_IOCTL_PARAMS, params) < 0)
         generate_error(error, errno);
 }
+
+/**
+ * alsatimer_user_instance_get_status:
+ * @self: A #ALSATimerUserInstance.
+ * @instance_status: (out): A #ALSATimerInstanceStatus.
+ * @error: A #GError.
+ *
+ * Get the latest status of instance.
+ */
+void alsatimer_user_instance_get_status(ALSATimerUserInstance *self,
+                                    ALSATimerInstanceStatus **instance_status,
+                                    GError **error)
+{
+    ALSATimerUserInstancePrivate *priv;
+    struct snd_timer_status *status;
+
+    g_return_if_fail(ALSATIMER_IS_USER_INSTANCE(self));
+    priv = alsatimer_user_instance_get_instance_private(self);
+
+    *instance_status = g_object_new(ALSATIMER_TYPE_INSTANCE_STATUS, NULL);
+    timer_instance_status_refer_private(*instance_status, &status);
+
+    if (ioctl(priv->fd, SNDRV_TIMER_IOCTL_STATUS, status) < 0) {
+        generate_error(error, errno);
+        g_object_unref(*instance_status);
+    }
+}
diff --git a/src/timer/user-instance.h b/src/timer/user-instance.h
index 6638335..62fb659 100644
--- a/src/timer/user-instance.h
+++ b/src/timer/user-instance.h
@@ -8,6 +8,7 @@
 #include <timer/device-id.h>
 #include <timer/instance-info.h>
 #include <timer/instance-params.h>
+#include <timer/instance-status.h>
 
 G_BEGIN_DECLS
 
@@ -70,6 +71,10 @@ void alsatimer_user_instance_set_params(ALSATimerUserInstance *self,
                                 ALSATimerInstanceParams *const *instance_params,
                                 GError **error);
 
+void alsatimer_user_instance_get_status(ALSATimerUserInstance *self,
+                                    ALSATimerInstanceStatus **instance_status,
+                                    GError **error);
+
 G_END_DECLS
 
 #endif
diff --git a/tests/alsatimer-user-instance b/tests/alsatimer-user-instance
index 29e9aa4..86a9a39 100644
--- a/tests/alsatimer-user-instance
+++ b/tests/alsatimer-user-instance
@@ -18,6 +18,7 @@ methods = (
     'attach_as_slave',
     'get_info',
     'set_params',
+    'get_status',
 )
 signals = ()
 
-- 
2.47.3