[PATCH v2 5/6] sound: Change snd_playback_start/snd_record_start

[Jonathon Jongsma <jjongsma@xxxxxxxxxx>]

The content of these functions alsmost exclusively deals with
channel client functionality except one line where the channel's active
state is set to TRUE.

These functions are called in two different places.

The first place is from the public API spice_server_record_start() and
spice_server_playback_start(). These functions should alter the
channel's active state, and then set the associated channel client to
active.

The second place is when a new channel client is created. In this
case, it is only called if the channel is already active, so it doesn't
make much sense to set the channel's active state inside of the
function.

To simplify things (and enable some future refactoring), this function
now only deals with the SndChannelClient. The SndChannel's active state
is now only modified from the public API functions.

Signed-off-by: Jonathon Jongsma <jjongsma@xxxxxxxxxx>
---
 server/sound.c | 24 ++++++++++--------------
 1 file changed, 10 insertions(+), 14 deletions(-)

diff --git a/server/sound.c b/server/sound.c
index 44b7582..543449a 100644
--- a/server/sound.c
+++ b/server/sound.c
@@ -238,8 +238,6 @@ G_DEFINE_TYPE(RecordChannelClient, record_channel_client, TYPE_SND_CHANNEL_CLIEN
 /* A list of all Spice{Playback,Record}State objects */
 static GList *snd_channels;
 
-static void snd_playback_start(SndChannel *channel);
-static void snd_record_start(SndChannel *channel);
 static void snd_send(SndChannelClient * client);
 
 static RedsState* snd_channel_get_server(SndChannelClient *client)
@@ -862,11 +860,8 @@ SPICE_GNUC_VISIBLE void spice_server_playback_set_mute(SpicePlaybackInstance *si
     snd_channel_set_mute(&sin->st->channel, mute);
 }
 
-static void snd_playback_start(SndChannel *channel)
+static void snd_playback_start(SndChannelClient *client)
 {
-    SndChannelClient *client = channel->connection;
-
-    channel->active = TRUE;
     if (!client)
         return;
     spice_assert(!client->active);
@@ -882,7 +877,9 @@ static void snd_playback_start(SndChannel *channel)
 
 SPICE_GNUC_VISIBLE void spice_server_playback_start(SpicePlaybackInstance *sin)
 {
-    return snd_playback_start(&sin->st->channel);
+    SndChannel *channel = &sin->st->channel;
+    channel->active = TRUE;
+    return snd_playback_start(channel->connection);
 }
 
 SPICE_GNUC_VISIBLE void spice_server_playback_stop(SpicePlaybackInstance *sin)
@@ -1074,7 +1071,7 @@ playback_channel_client_constructed(GObject *object)
     }
 
     if (channel->active) {
-        snd_playback_start(channel);
+        snd_playback_start(scc);
     }
     snd_send(scc);
 }
@@ -1126,11 +1123,8 @@ SPICE_GNUC_VISIBLE void spice_server_record_set_mute(SpiceRecordInstance *sin, u
     snd_channel_set_mute(&sin->st->channel, mute);
 }
 
-static void snd_record_start(SndChannel *channel)
+static void snd_record_start(SndChannelClient *client)
 {
-    SndChannelClient *client = channel->connection;
-
-    channel->active = TRUE;
     if (!client) {
         return;
     }
@@ -1149,7 +1143,9 @@ static void snd_record_start(SndChannel *channel)
 
 SPICE_GNUC_VISIBLE void spice_server_record_start(SpiceRecordInstance *sin)
 {
-    snd_record_start(&sin->st->channel);
+    SndChannel *channel = &sin->st->channel;
+    channel->active = TRUE;
+    snd_record_start(channel->connection);
 }
 
 SPICE_GNUC_VISIBLE void spice_server_record_stop(SpiceRecordInstance *sin)
@@ -1266,7 +1262,7 @@ record_channel_client_constructed(GObject *object)
     }
 
     if (channel->active) {
-        snd_record_start(channel);
+        snd_record_start(scc);
     }
     snd_send(scc);
 }
-- 
2.9.3

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