[spice-server 2/3] char-device: Make send_tokens_to_client() optional

[Christophe Fergeau <cfergeau@xxxxxxxxxx>]

Only RedCharDeviceVDIPortClass implements this vfunc, rather than
forcing every classes deriving from RedCharDeviceClass to implement it,
red_char_device_send_tokens_to_client() can deal with it.
---
 server/char-device.c       |  3 +++
 server/red-stream-device.c |  7 -------
 server/smartcard.c         |  8 --------
 server/spicevmc.c          | 11 -----------
 4 files changed, 3 insertions(+), 26 deletions(-)

diff --git a/server/char-device.c b/server/char-device.c
index 64b41a941..c86c3a2f0 100644
--- a/server/char-device.c
+++ b/server/char-device.c
@@ -124,6 +124,9 @@ red_char_device_send_tokens_to_client(RedCharDevice *dev,
 {
    RedCharDeviceClass *klass = RED_CHAR_DEVICE_GET_CLASS(dev);
 
+   if (klass->send_tokens_to_client == NULL) {
+       return;
+   }
    klass->send_tokens_to_client(dev, client, tokens);
 }
 
diff --git a/server/red-stream-device.c b/server/red-stream-device.c
index 70829fbff..b9e0827af 100644
--- a/server/red-stream-device.c
+++ b/server/red-stream-device.c
@@ -573,12 +573,6 @@ stream_device_send_msg_to_client(RedCharDevice *self, RedPipeItem *msg, RedClien
 {
 }
 
-static void
-stream_device_send_tokens_to_client(RedCharDevice *self, RedClient *client, uint32_t tokens)
-{
-    g_warning("%s: Not implemented!", G_STRFUNC);
-}
-
 static void
 stream_device_remove_client(RedCharDevice *self, RedClient *client)
 {
@@ -795,7 +789,6 @@ stream_device_class_init(StreamDeviceClass *klass)
 
     char_dev_class->read_one_msg_from_device = stream_device_read_msg_from_dev;
     char_dev_class->send_msg_to_client = stream_device_send_msg_to_client;
-    char_dev_class->send_tokens_to_client = stream_device_send_tokens_to_client;
     char_dev_class->remove_client = stream_device_remove_client;
     char_dev_class->port_event = stream_device_port_event;
 }
diff --git a/server/smartcard.c b/server/smartcard.c
index 95dd90108..c08228271 100644
--- a/server/smartcard.c
+++ b/server/smartcard.c
@@ -186,13 +186,6 @@ static void smartcard_send_msg_to_client(RedCharDevice *self,
     red_channel_client_pipe_add_push(rcc, msg);
 }
 
-static void smartcard_send_tokens_to_client(RedCharDevice *self,
-                                            RedClient *client,
-                                            uint32_t tokens)
-{
-    spice_error("not implemented");
-}
-
 static void smartcard_remove_client(RedCharDevice *self, RedClient *client)
 {
     RedCharDeviceSmartcard *dev = RED_CHAR_DEVICE_SMARTCARD(self);
@@ -613,7 +606,6 @@ red_char_device_smartcard_class_init(RedCharDeviceSmartcardClass *klass)
 
     char_dev_class->read_one_msg_from_device = smartcard_read_msg_from_device;
     char_dev_class->send_msg_to_client = smartcard_send_msg_to_client;
-    char_dev_class->send_tokens_to_client = smartcard_send_tokens_to_client;
     char_dev_class->remove_client = smartcard_remove_client;
 }
 
diff --git a/server/spicevmc.c b/server/spicevmc.c
index c03bc4001..51550c1a0 100644
--- a/server/spicevmc.c
+++ b/server/spicevmc.c
@@ -420,16 +420,6 @@ static void spicevmc_port_send_event(RedChannelClient *rcc, uint8_t event)
     red_channel_client_pipe_add_push(rcc, &item->base);
 }
 
-static void spicevmc_char_dev_send_tokens_to_client(RedCharDevice *self,
-                                                    RedClient *client,
-                                                    uint32_t tokens)
-{
-    RedCharDeviceSpiceVmc *vmc = RED_CHAR_DEVICE_SPICEVMC(self);
-    RedVmcChannel *channel = RED_VMC_CHANNEL(vmc->channel);
-
-    red_channel_warning(RED_CHANNEL(channel), "%s: Not implemented!", G_STRFUNC);
-}
-
 static void spicevmc_char_dev_remove_client(RedCharDevice *self,
                                             RedClient *client)
 {
@@ -905,7 +895,6 @@ red_char_device_spicevmc_class_init(RedCharDeviceSpiceVmcClass *klass)
 
     char_dev_class->read_one_msg_from_device = spicevmc_chardev_read_msg_from_dev;
     char_dev_class->send_msg_to_client = spicevmc_chardev_send_msg_to_client;
-    char_dev_class->send_tokens_to_client = spicevmc_char_dev_send_tokens_to_client;
     char_dev_class->remove_client = spicevmc_char_dev_remove_client;
     char_dev_class->port_event = spicevmc_port_event;
 
-- 
2.20.1

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