[spice-server v2 02/10] sound: Implement snd_channel_config_socket

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This is in preparation for switching SndChannelClient into a proper
RedChannelClient. The prototype of the new helper matches what is
expected from the RedChannel::config_socket vfunc.

To be able to achieve that, this commit associates the sound channel
RedsStream instance with the DummyChannelClient instance we have, and
then call snd_channel_config_socket() on that instance.

Based on a patch from Frediano Ziglio <fziglio@xxxxxxxxxx>

Signed-off-by: Christophe Fergeau <cfergeau@xxxxxxxxxx>
---
 server/dummy-channel-client.c |  2 +
 server/dummy-channel-client.h |  1 +
 server/sound.c                | 98 +++++++++++++++++++++++--------------------
 3 files changed, 55 insertions(+), 46 deletions(-)

diff --git a/server/dummy-channel-client.c b/server/dummy-channel-client.c
index 61d5683..4efaa31 100644
--- a/server/dummy-channel-client.c
+++ b/server/dummy-channel-client.c
@@ -104,6 +104,7 @@ dummy_channel_client_init(DummyChannelClient *self)
 
 RedChannelClient* dummy_channel_client_create(RedChannel *channel,
                                               RedClient  *client,
+                                              RedsStream *stream,
                                               int num_common_caps,
                                               uint32_t *common_caps,
                                               int num_caps, uint32_t *caps)
@@ -125,6 +126,7 @@ RedChannelClient* dummy_channel_client_create(RedChannel *channel,
                          NULL, NULL,
                          "channel", channel,
                          "client", client,
+                         "stream", stream,
                          "caps", caps_array,
                          "common-caps", common_caps_array,
                          NULL);
diff --git a/server/dummy-channel-client.h b/server/dummy-channel-client.h
index 8013aa2..54e0e6c 100644
--- a/server/dummy-channel-client.h
+++ b/server/dummy-channel-client.h
@@ -56,6 +56,7 @@ GType dummy_channel_client_get_type(void) G_GNUC_CONST;
 
 RedChannelClient *dummy_channel_client_create(RedChannel *channel,
                                               RedClient  *client,
+                                              RedsStream *stream,
                                               int num_common_caps, uint32_t *common_caps,
                                               int num_caps, uint32_t *caps);
 
diff --git a/server/sound.c b/server/sound.c
index 2165644..1f88149 100644
--- a/server/sound.c
+++ b/server/sound.c
@@ -938,6 +938,8 @@ static void snd_record_send(void* data)
     }
 }
 
+static int snd_channel_config_socket(RedChannelClient *rcc);
+
 static SndChannelClient *__new_channel(SndChannel *channel, int size, uint32_t channel_id,
                                        RedClient *red_client,
                                        RedsStream *stream,
@@ -949,50 +951,8 @@ static SndChannelClient *__new_channel(SndChannel *channel, int size, uint32_t c
                                        uint32_t *caps, int num_caps)
 {
     SndChannelClient *client;
-    int delay_val;
-    int flags;
-#ifdef SO_PRIORITY
-    int priority;
-#endif
-    int tos;
-    MainChannelClient *mcc = red_client_get_main(red_client);
     RedsState *reds = red_channel_get_server(RED_CHANNEL(channel));
 
-    spice_assert(stream);
-    if ((flags = fcntl(stream->socket, F_GETFL)) == -1) {
-        spice_printerr("accept failed, %s", strerror(errno));
-        goto error1;
-    }
-
-#ifdef SO_PRIORITY
-    priority = 6;
-    if (setsockopt(stream->socket, SOL_SOCKET, SO_PRIORITY, (void*)&priority,
-                   sizeof(priority)) == -1) {
-        if (errno != ENOTSUP) {
-            spice_printerr("setsockopt failed, %s", strerror(errno));
-        }
-    }
-#endif
-
-    tos = IPTOS_LOWDELAY;
-    if (setsockopt(stream->socket, IPPROTO_IP, IP_TOS, (void*)&tos, sizeof(tos)) == -1) {
-        if (errno != ENOTSUP) {
-            spice_printerr("setsockopt failed, %s", strerror(errno));
-        }
-    }
-
-    delay_val = main_channel_client_is_low_bandwidth(mcc) ? 0 : 1;
-    if (setsockopt(stream->socket, IPPROTO_TCP, TCP_NODELAY, &delay_val, sizeof(delay_val)) == -1) {
-        if (errno != ENOTSUP) {
-            spice_printerr("setsockopt failed, %s", strerror(errno));
-        }
-    }
-
-    if (fcntl(stream->socket, F_SETFL, flags | O_NONBLOCK) == -1) {
-        spice_printerr("accept failed, %s", strerror(errno));
-        goto error1;
-    }
-
     spice_assert(size >= sizeof(*client));
     client = spice_malloc0(size);
     client->refs = 1;
@@ -1017,24 +977,70 @@ static SndChannelClient *__new_channel(SndChannel *channel, int size, uint32_t c
     client->cleanup = cleanup;
 
     client->channel_client =
-        dummy_channel_client_create(RED_CHANNEL(channel), red_client,
+        dummy_channel_client_create(RED_CHANNEL(channel), red_client, stream,
                                     num_common_caps, common_caps, num_caps, caps);
     if (!client->channel_client) {
         goto error2;
     }
+    if (!snd_channel_config_socket(RED_CHANNEL_CLIENT(client->channel_client))) {
+        goto error2;
+    }
+
     return client;
 
 error2:
     free(client);
-
-error1:
     reds_stream_free(stream);
     return NULL;
 }
 
 static int snd_channel_config_socket(RedChannelClient *rcc)
 {
-    g_assert_not_reached();
+    int delay_val;
+    int flags;
+#ifdef SO_PRIORITY
+    int priority;
+#endif
+    int tos;
+    RedsStream *stream = red_channel_client_get_stream(rcc);
+    RedClient *red_client = red_channel_client_get_client(rcc);
+    MainChannelClient *mcc = red_client_get_main(red_client);
+
+    if ((flags = fcntl(stream->socket, F_GETFL)) == -1) {
+        spice_printerr("accept failed, %s", strerror(errno));
+        return FALSE;
+    }
+
+#ifdef SO_PRIORITY
+    priority = 6;
+    if (setsockopt(stream->socket, SOL_SOCKET, SO_PRIORITY, (void*)&priority,
+                   sizeof(priority)) == -1) {
+        if (errno != ENOTSUP) {
+            spice_printerr("setsockopt failed, %s", strerror(errno));
+        }
+    }
+#endif
+
+    tos = IPTOS_LOWDELAY;
+    if (setsockopt(stream->socket, IPPROTO_IP, IP_TOS, (void*)&tos, sizeof(tos)) == -1) {
+        if (errno != ENOTSUP) {
+            spice_printerr("setsockopt failed, %s", strerror(errno));
+        }
+    }
+
+    delay_val = main_channel_client_is_low_bandwidth(mcc) ? 0 : 1;
+    if (setsockopt(stream->socket, IPPROTO_TCP, TCP_NODELAY, &delay_val, sizeof(delay_val)) == -1) {
+        if (errno != ENOTSUP) {
+            spice_printerr("setsockopt failed, %s", strerror(errno));
+        }
+    }
+
+    if (fcntl(stream->socket, F_SETFL, flags | O_NONBLOCK) == -1) {
+        spice_printerr("accept failed, %s", strerror(errno));
+        return FALSE;
+    }
+
+    return TRUE;
 }
 
 static void snd_channel_on_disconnect(RedChannelClient *rcc)
-- 
2.9.3

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