[PATCH spice-server v3] Update usage of GObject private structures

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New functions and macros have been added in glib 2.38 to better handle
this case.

https://gitlab.gnome.org/GNOME/glib/blob/c8de2b11bbbf5705ee20bf68d0c11e455b441312/NEWS

G_TYPE_INSTANCE_GET_PRIVATE will be deprecated in GLib 2.58.

https://gitlab.gnome.org/GNOME/glib/merge_requests/7/commits

Signed-off-by: Eduardo Lima (Etrunko) <etrunko@xxxxxxxxxx>
Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx>
---

in v2:
 - Squash with Frediano's patch replacing GET_PRIVATE macros with
   appropriate _get_instance_private() functions.

in v3:
 - Squash Frediano's patch which splits long lines.

---
 server/char-device.c              |  8 ++------
 server/common-graphics-channel.c  | 22 +++++++---------------
 server/cursor-channel-client.c    | 12 ++++--------
 server/dispatcher.c               | 11 +++--------
 server/inputs-channel-client.c    | 11 +++--------
 server/main-channel-client.c      | 11 +++--------
 server/main-dispatcher.c          | 10 ++--------
 server/red-channel-client.c       |  9 +++------
 server/red-channel.c              | 11 +++--------
 server/reds.c                     |  8 ++------
 server/smartcard-channel-client.c |  6 +-----
 server/smartcard.c                | 13 +++----------
 12 files changed, 36 insertions(+), 96 deletions(-)

diff --git a/server/char-device.c b/server/char-device.c
index 64b41a94..f58402cc 100644
--- a/server/char-device.c
+++ b/server/char-device.c
@@ -84,9 +84,7 @@ struct RedCharDevicePrivate {
     SpiceServer *reds;
 };
 
-G_DEFINE_TYPE(RedCharDevice, red_char_device, G_TYPE_OBJECT)
-
-#define RED_CHAR_DEVICE_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), RED_TYPE_CHAR_DEVICE, RedCharDevicePrivate))
+G_DEFINE_TYPE_WITH_PRIVATE(RedCharDevice, red_char_device, G_TYPE_OBJECT)
 
 enum {
     PROP_0,
@@ -1119,8 +1117,6 @@ red_char_device_class_init(RedCharDeviceClass *klass)
 {
     GObjectClass *object_class = G_OBJECT_CLASS(klass);
 
-    g_type_class_add_private(klass, sizeof (RedCharDevicePrivate));
-
     object_class->get_property = red_char_device_get_property;
     object_class->set_property = red_char_device_set_property;
     object_class->finalize = red_char_device_finalize;
@@ -1180,7 +1176,7 @@ SPICE_GNUC_VISIBLE void spice_server_port_event(SpiceCharDeviceInstance *sin, ui
 static void
 red_char_device_init(RedCharDevice *self)
 {
-    self->priv = RED_CHAR_DEVICE_PRIVATE(self);
+    self->priv = red_char_device_get_instance_private(self);
 
     g_queue_init(&self->priv->write_queue);
     g_queue_init(&self->priv->write_bufs_pool);
diff --git a/server/common-graphics-channel.c b/server/common-graphics-channel.c
index 083ab3eb..b70fa3a4 100644
--- a/server/common-graphics-channel.c
+++ b/server/common-graphics-channel.c
@@ -26,16 +26,6 @@
 
 #define CHANNEL_RECEIVE_BUF_SIZE 1024
 
-G_DEFINE_ABSTRACT_TYPE(CommonGraphicsChannel, common_graphics_channel, RED_TYPE_CHANNEL)
-
-G_DEFINE_TYPE(CommonGraphicsChannelClient, common_graphics_channel_client, RED_TYPE_CHANNEL_CLIENT)
-
-#define GRAPHICS_CHANNEL_PRIVATE(o) \
-    (G_TYPE_INSTANCE_GET_PRIVATE((o), TYPE_COMMON_GRAPHICS_CHANNEL, CommonGraphicsChannelPrivate))
-#define GRAPHICS_CHANNEL_CLIENT_PRIVATE(o) \
-    (G_TYPE_INSTANCE_GET_PRIVATE((o), TYPE_COMMON_GRAPHICS_CHANNEL_CLIENT, \
-    CommonGraphicsChannelClientPrivate))
-
 struct CommonGraphicsChannelPrivate
 {
     int during_target_migrate; /* TRUE when the client that is associated with the channel
@@ -45,10 +35,15 @@ struct CommonGraphicsChannelPrivate
                                   of the primary surface) */
 };
 
+G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE(CommonGraphicsChannel, common_graphics_channel,
+                                    RED_TYPE_CHANNEL)
+
 struct CommonGraphicsChannelClientPrivate {
     uint8_t recv_buf[CHANNEL_RECEIVE_BUF_SIZE];
 };
 
+G_DEFINE_TYPE_WITH_PRIVATE(CommonGraphicsChannelClient, common_graphics_channel_client,
+                           RED_TYPE_CHANNEL_CLIENT)
 
 static uint8_t *common_alloc_recv_buf(RedChannelClient *rcc, uint16_t type, uint32_t size)
 {
@@ -103,13 +98,12 @@ bool common_channel_client_config_socket(RedChannelClient *rcc)
 static void
 common_graphics_channel_class_init(CommonGraphicsChannelClass *klass)
 {
-    g_type_class_add_private(klass, sizeof(CommonGraphicsChannelPrivate));
 }
 
 static void
 common_graphics_channel_init(CommonGraphicsChannel *self)
 {
-    self->priv = GRAPHICS_CHANNEL_PRIVATE(self);
+    self->priv = common_graphics_channel_get_instance_private(self);
 }
 
 void common_graphics_channel_set_during_target_migrate(CommonGraphicsChannel *self, gboolean value)
@@ -125,7 +119,7 @@ gboolean common_graphics_channel_get_during_target_migrate(CommonGraphicsChannel
 static void
 common_graphics_channel_client_init(CommonGraphicsChannelClient *self)
 {
-    self->priv = GRAPHICS_CHANNEL_CLIENT_PRIVATE(self);
+    self->priv = common_graphics_channel_client_get_instance_private(self);
 }
 
 static void
@@ -133,8 +127,6 @@ common_graphics_channel_client_class_init(CommonGraphicsChannelClientClass *klas
 {
     RedChannelClientClass *client_class = RED_CHANNEL_CLIENT_CLASS(klass);
 
-    g_type_class_add_private(klass, sizeof(CommonGraphicsChannelClientPrivate));
-
     client_class->config_socket = common_channel_client_config_socket;
     client_class->alloc_recv_buf = common_alloc_recv_buf;
     client_class->release_recv_buf = common_release_recv_buf;
diff --git a/server/cursor-channel-client.c b/server/cursor-channel-client.c
index 6d39e24e..d72989ab 100644
--- a/server/cursor-channel-client.c
+++ b/server/cursor-channel-client.c
@@ -35,11 +35,6 @@
 #define CURSOR_CACHE_HASH_KEY(id) ((id) & CURSOR_CACHE_HASH_MASK)
 #define CURSOR_CLIENT_TIMEOUT 30000000000ULL //nano
 
-G_DEFINE_TYPE(CursorChannelClient, cursor_channel_client, TYPE_COMMON_GRAPHICS_CHANNEL_CLIENT)
-
-#define CURSOR_CHANNEL_CLIENT_PRIVATE(o) \
-    (G_TYPE_INSTANCE_GET_PRIVATE((o), TYPE_CURSOR_CHANNEL_CLIENT, CursorChannelClientPrivate))
-
 struct CursorChannelClientPrivate
 {
     RedCacheItem *cursor_cache[CURSOR_CACHE_HASH_SIZE];
@@ -48,6 +43,9 @@ struct CursorChannelClientPrivate
     uint32_t cursor_cache_items;
 };
 
+G_DEFINE_TYPE_WITH_PRIVATE(CursorChannelClient, cursor_channel_client,
+                           TYPE_COMMON_GRAPHICS_CHANNEL_CLIENT)
+
 static void cursor_channel_client_on_disconnect(RedChannelClient *rcc);
 
 static void
@@ -55,15 +53,13 @@ cursor_channel_client_class_init(CursorChannelClientClass *klass)
 {
     RedChannelClientClass *client_class = RED_CHANNEL_CLIENT_CLASS(klass);
 
-    g_type_class_add_private(klass, sizeof(CursorChannelClientPrivate));
-
     client_class->on_disconnect = cursor_channel_client_on_disconnect;
 }
 
 static void
 cursor_channel_client_init(CursorChannelClient *self)
 {
-    self->priv = CURSOR_CHANNEL_CLIENT_PRIVATE(self);
+    self->priv = cursor_channel_client_get_instance_private(self);
     ring_init(&self->priv->cursor_cache_lru);
     self->priv->cursor_cache_available = CLIENT_CURSOR_CACHE_SIZE;
 }
diff --git a/server/dispatcher.c b/server/dispatcher.c
index 3e27f2c2..c598ed7f 100644
--- a/server/dispatcher.c
+++ b/server/dispatcher.c
@@ -44,11 +44,6 @@ typedef struct DispatcherMessage {
     dispatcher_handle_message handler;
 } DispatcherMessage;
 
-
-G_DEFINE_TYPE(Dispatcher, dispatcher, G_TYPE_OBJECT)
-
-#define DISPATCHER_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), TYPE_DISPATCHER, DispatcherPrivate))
-
 struct DispatcherPrivate {
     int recv_fd;
     int send_fd;
@@ -63,6 +58,8 @@ struct DispatcherPrivate {
     dispatcher_handle_any_message any_handler;
 };
 
+G_DEFINE_TYPE_WITH_PRIVATE(Dispatcher, dispatcher, G_TYPE_OBJECT)
+
 enum {
     PROP_0,
     PROP_MAX_MESSAGE_TYPE
@@ -144,8 +141,6 @@ dispatcher_class_init(DispatcherClass *klass)
 {
     GObjectClass *object_class = G_OBJECT_CLASS(klass);
 
-    g_type_class_add_private(klass, sizeof (DispatcherPrivate));
-
     object_class->get_property = dispatcher_get_property;
     object_class->set_property = dispatcher_set_property;
     object_class->constructed = dispatcher_constructed;
@@ -165,7 +160,7 @@ dispatcher_class_init(DispatcherClass *klass)
 static void
 dispatcher_init(Dispatcher *self)
 {
-    self->priv = DISPATCHER_PRIVATE(self);
+    self->priv = dispatcher_get_instance_private(self);
 }
 
 Dispatcher *
diff --git a/server/inputs-channel-client.c b/server/inputs-channel-client.c
index 5fd818a1..61254c7e 100644
--- a/server/inputs-channel-client.c
+++ b/server/inputs-channel-client.c
@@ -22,11 +22,6 @@
 #include "migration-protocol.h"
 #include "red-channel-client.h"
 
-G_DEFINE_TYPE(InputsChannelClient, inputs_channel_client, RED_TYPE_CHANNEL_CLIENT)
-
-#define INPUTS_CHANNEL_CLIENT_PRIVATE(o) \
-    (G_TYPE_INSTANCE_GET_PRIVATE((o), TYPE_INPUTS_CHANNEL_CLIENT, InputsChannelClientPrivate))
-
 // TODO: RECEIVE_BUF_SIZE used to be the same for inputs_channel and main_channel
 // since it was defined once in reds.c which contained both.
 // Now that they are split we can give a more fitting value for inputs - what
@@ -44,6 +39,8 @@ struct InputsChannelClientPrivate
     uint8_t recv_buf[RECEIVE_BUF_SIZE];
 };
 
+G_DEFINE_TYPE_WITH_PRIVATE(InputsChannelClient, inputs_channel_client, RED_TYPE_CHANNEL_CLIENT)
+
 static uint8_t *
 inputs_channel_client_alloc_msg_rcv_buf(RedChannelClient *rcc,
                                         uint16_t type, uint32_t size)
@@ -77,8 +74,6 @@ inputs_channel_client_class_init(InputsChannelClientClass *klass)
 {
     RedChannelClientClass *client_class = RED_CHANNEL_CLIENT_CLASS(klass);
 
-    g_type_class_add_private(klass, sizeof(InputsChannelClientPrivate));
-
     client_class->alloc_recv_buf = inputs_channel_client_alloc_msg_rcv_buf;
     client_class->release_recv_buf = inputs_channel_client_release_msg_rcv_buf;
     client_class->on_disconnect = inputs_channel_client_on_disconnect;
@@ -87,7 +82,7 @@ inputs_channel_client_class_init(InputsChannelClientClass *klass)
 static void
 inputs_channel_client_init(InputsChannelClient *self)
 {
-    self->priv = INPUTS_CHANNEL_CLIENT_PRIVATE(self);
+    self->priv = inputs_channel_client_get_instance_private(self);
 }
 
 RedChannelClient* inputs_channel_client_create(RedChannel *channel,
diff --git a/server/main-channel-client.c b/server/main-channel-client.c
index 54be9934..3c18bb9d 100644
--- a/server/main-channel-client.c
+++ b/server/main-channel-client.c
@@ -40,11 +40,6 @@ typedef enum {
 
 #define CLIENT_CONNECTIVITY_TIMEOUT (MSEC_PER_SEC * 30)
 
-G_DEFINE_TYPE(MainChannelClient, main_channel_client, RED_TYPE_CHANNEL_CLIENT)
-
-#define MAIN_CHANNEL_CLIENT_PRIVATE(o) \
-    (G_TYPE_INSTANCE_GET_PRIVATE((o), TYPE_MAIN_CHANNEL_CLIENT, MainChannelClientPrivate))
-
 // approximate max receive message size for main channel
 #define MAIN_CHANNEL_RECEIVE_BUF_SIZE \
     (4096 + (REDS_AGENT_WINDOW_SIZE + REDS_NUM_INTERNAL_AGENT_MESSAGES) * SPICE_AGENT_MAX_DATA_SIZE)
@@ -66,6 +61,8 @@ struct MainChannelClientPrivate {
     uint8_t recv_buf[MAIN_CHANNEL_RECEIVE_BUF_SIZE];
 };
 
+G_DEFINE_TYPE_WITH_PRIVATE(MainChannelClient, main_channel_client, RED_TYPE_CHANNEL_CLIENT)
+
 typedef struct RedPingPipeItem {
     RedPipeItem base;
     int size;
@@ -211,8 +208,6 @@ static void main_channel_client_class_init(MainChannelClientClass *klass)
     GObjectClass *object_class = G_OBJECT_CLASS(klass);
     RedChannelClientClass *client_class = RED_CHANNEL_CLIENT_CLASS(klass);
 
-    g_type_class_add_private(klass, sizeof(MainChannelClientPrivate));
-
     object_class->get_property = main_channel_client_get_property;
     object_class->set_property = main_channel_client_set_property;
 
@@ -235,7 +230,7 @@ static void main_channel_client_class_init(MainChannelClientClass *klass)
 
 static void main_channel_client_init(MainChannelClient *self)
 {
-    self->priv = MAIN_CHANNEL_CLIENT_PRIVATE(self);
+    self->priv = main_channel_client_get_instance_private(self);
     self->priv->bitrate_per_sec = ~0;
 }
 
diff --git a/server/main-dispatcher.c b/server/main-dispatcher.c
index 43f8b79a..99d2a621 100644
--- a/server/main-dispatcher.c
+++ b/server/main-dispatcher.c
@@ -46,11 +46,6 @@
  * main_dispatcher_handle_<event_name> - handler for callback from main thread
  *   seperate from self because it may send an ack or do other work in the future.
  */
-
-G_DEFINE_TYPE(MainDispatcher, main_dispatcher, TYPE_DISPATCHER)
-
-#define MAIN_DISPATCHER_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE((o), TYPE_MAIN_DISPATCHER, MainDispatcherPrivate))
-
 struct MainDispatcherPrivate
 {
     SpiceCoreInterfaceInternal *core; /* weak */
@@ -58,6 +53,7 @@ struct MainDispatcherPrivate
     SpiceWatch *watch;
 };
 
+G_DEFINE_TYPE_WITH_PRIVATE(MainDispatcher, main_dispatcher, TYPE_DISPATCHER)
 
 enum {
     PROP0,
@@ -113,8 +109,6 @@ main_dispatcher_class_init(MainDispatcherClass *klass)
 {
     GObjectClass *object_class = G_OBJECT_CLASS(klass);
 
-    g_type_class_add_private(klass, sizeof(MainDispatcherPrivate));
-
     object_class->constructed = main_dispatcher_constructed;
     object_class->finalize = main_dispatcher_finalize;
     object_class->get_property = main_dispatcher_get_property;
@@ -140,7 +134,7 @@ main_dispatcher_class_init(MainDispatcherClass *klass)
 static void
 main_dispatcher_init(MainDispatcher *self)
 {
-    self->priv = MAIN_DISPATCHER_PRIVATE(self);
+    self->priv = main_dispatcher_get_instance_private(self);
 }
 
 enum {
diff --git a/server/red-channel-client.c b/server/red-channel-client.c
index 375a60b3..9aa76792 100644
--- a/server/red-channel-client.c
+++ b/server/red-channel-client.c
@@ -187,10 +187,8 @@ static bool red_channel_client_config_socket(RedChannelClient *rcc);
 
 G_DEFINE_TYPE_WITH_CODE(RedChannelClient, red_channel_client, G_TYPE_OBJECT,
                         G_IMPLEMENT_INTERFACE(G_TYPE_INITABLE,
-                                              red_channel_client_initable_interface_init))
-
-#define CHANNEL_CLIENT_PRIVATE(o) \
-    (G_TYPE_INSTANCE_GET_PRIVATE((o), RED_TYPE_CHANNEL_CLIENT, RedChannelClientPrivate))
+                                              red_channel_client_initable_interface_init);
+                        G_ADD_PRIVATE(RedChannelClient));
 
 static gboolean red_channel_client_initable_init(GInitable *initable,
                                                  GCancellable *cancellable,
@@ -404,7 +402,6 @@ static void red_channel_client_class_init(RedChannelClientClass *klass)
     GParamSpec *spec;
 
     g_debug("%s", G_STRFUNC);
-    g_type_class_add_private(klass, sizeof(RedChannelClientPrivate));
 
     object_class->get_property = red_channel_client_get_property;
     object_class->set_property = red_channel_client_set_property;
@@ -454,7 +451,7 @@ static void red_channel_client_class_init(RedChannelClientClass *klass)
 static void
 red_channel_client_init(RedChannelClient *self)
 {
-    self->priv = CHANNEL_CLIENT_PRIVATE(self);
+    self->priv = red_channel_client_get_instance_private(self);
     // blocks send message (maybe use send_data.blocked + block flags)
     self->priv->ack_data.messages_window = ~0;
     self->priv->ack_data.client_generation = ~0;
diff --git a/server/red-channel.c b/server/red-channel.c
index 448b690e..a58f757c 100644
--- a/server/red-channel.c
+++ b/server/red-channel.c
@@ -65,11 +65,6 @@
  * If a call to red_channel_client_destroy is made from another location, it must be called
  * from the channel's thread.
 */
-
-G_DEFINE_ABSTRACT_TYPE(RedChannel, red_channel, G_TYPE_OBJECT)
-
-#define CHANNEL_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE((o), RED_TYPE_CHANNEL, RedChannelPrivate))
-
 struct RedChannelPrivate
 {
     uint32_t type;
@@ -99,6 +94,8 @@ struct RedChannelPrivate
     RedStatNode stat;
 };
 
+G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE(RedChannel, red_channel, G_TYPE_OBJECT)
+
 enum {
     PROP0,
     PROP_SPICE_SERVER,
@@ -219,8 +216,6 @@ red_channel_class_init(RedChannelClass *klass)
     GParamSpec *spec;
     GObjectClass *object_class = G_OBJECT_CLASS(klass);
 
-    g_type_class_add_private(klass, sizeof (RedChannelPrivate));
-
     object_class->get_property = red_channel_get_property;
     object_class->set_property = red_channel_set_property;
     object_class->finalize = red_channel_finalize;
@@ -289,7 +284,7 @@ red_channel_class_init(RedChannelClass *klass)
 static void
 red_channel_init(RedChannel *self)
 {
-    self->priv = CHANNEL_PRIVATE(self);
+    self->priv = red_channel_get_instance_private(self);
 
     red_channel_set_common_cap(self, SPICE_COMMON_CAP_MINI_HEADER);
     self->priv->thread_id = pthread_self();
diff --git a/server/reds.c b/server/reds.c
index 24047bda..92114d1e 100644
--- a/server/reds.c
+++ b/server/reds.c
@@ -281,9 +281,7 @@ struct RedCharDeviceVDIPortClass
     RedCharDeviceClass parent_class;
 };
 
-G_DEFINE_TYPE(RedCharDeviceVDIPort, red_char_device_vdi_port, RED_TYPE_CHAR_DEVICE)
-
-#define RED_CHAR_DEVICE_VDIPORT_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), RED_TYPE_CHAR_DEVICE_VDIPORT, RedCharDeviceVDIPortPrivate))
+G_DEFINE_TYPE_WITH_PRIVATE(RedCharDeviceVDIPort, red_char_device_vdi_port, RED_TYPE_CHAR_DEVICE)
 
 static RedCharDeviceVDIPort *red_char_device_vdi_port_new(RedsState *reds);
 
@@ -4591,7 +4589,7 @@ static void red_char_device_vdi_port_constructed(GObject *object)
 static void
 red_char_device_vdi_port_init(RedCharDeviceVDIPort *self)
 {
-    self->priv = RED_CHAR_DEVICE_VDIPORT_PRIVATE(self);
+    self->priv = red_char_device_vdi_port_get_instance_private(self);
 
     self->priv->read_state = VDI_PORT_READ_STATE_READ_HEADER;
     self->priv->receive_pos = (uint8_t *)&self->priv->vdi_chunk_header;
@@ -4623,8 +4621,6 @@ red_char_device_vdi_port_class_init(RedCharDeviceVDIPortClass *klass)
     GObjectClass *object_class = G_OBJECT_CLASS(klass);
     RedCharDeviceClass *char_dev_class = RED_CHAR_DEVICE_CLASS(klass);
 
-    g_type_class_add_private(klass, sizeof (RedCharDeviceVDIPortPrivate));
-
     object_class->finalize = red_char_device_vdi_port_finalize;
     object_class->constructed = red_char_device_vdi_port_constructed;
 
diff --git a/server/smartcard-channel-client.c b/server/smartcard-channel-client.c
index 49e765b7..a665e933 100644
--- a/server/smartcard-channel-client.c
+++ b/server/smartcard-channel-client.c
@@ -22,10 +22,6 @@
 
 G_DEFINE_TYPE(SmartCardChannelClient, smart_card_channel_client, RED_TYPE_CHANNEL_CLIENT)
 
-#define SMARTCARD_CHANNEL_CLIENT_PRIVATE(o) \
-    (G_TYPE_INSTANCE_GET_PRIVATE((o), TYPE_SMARTCARD_CHANNEL_CLIENT, \
-                                 SmartCardChannelClientPrivate))
-
 struct SmartCardChannelClientPrivate
 {
     RedCharDeviceSmartcard *smartcard;
@@ -103,7 +99,7 @@ static void smart_card_channel_client_class_init(SmartCardChannelClientClass *kl
 static void
 smart_card_channel_client_init(SmartCardChannelClient *self)
 {
-    self->priv = SMARTCARD_CHANNEL_CLIENT_PRIVATE(self);
+    self->priv = smart_card_channel_client_get_instance_private(self);
 }
 
 SmartCardChannelClient* smartcard_channel_client_create(RedChannel *channel,
diff --git a/server/smartcard.c b/server/smartcard.c
index 4c849450..504d6f03 100644
--- a/server/smartcard.c
+++ b/server/smartcard.c
@@ -83,13 +83,6 @@ red_smartcard_channel_new(RedsState *reds)
                         NULL);
 }
 
-
-G_DEFINE_TYPE(RedCharDeviceSmartcard, red_char_device_smartcard, RED_TYPE_CHAR_DEVICE)
-
-#define RED_CHAR_DEVICE_SMARTCARD_PRIVATE(o) \
-    (G_TYPE_INSTANCE_GET_PRIVATE ((o), RED_TYPE_CHAR_DEVICE_SMARTCARD, \
-                                  RedCharDeviceSmartcardPrivate))
-
 struct RedCharDeviceSmartcardPrivate {
     uint32_t             reader_id;
     /* read_from_device buffer */
@@ -102,6 +95,8 @@ struct RedCharDeviceSmartcardPrivate {
     int                  reader_added; // has reader_add been sent to the device
 };
 
+G_DEFINE_TYPE_WITH_PRIVATE(RedCharDeviceSmartcard, red_char_device_smartcard, RED_TYPE_CHAR_DEVICE)
+
 typedef struct RedMsgItem {
     RedPipeItem base;
 
@@ -609,8 +604,6 @@ red_char_device_smartcard_class_init(RedCharDeviceSmartcardClass *klass)
     GObjectClass *object_class = G_OBJECT_CLASS(klass);
     RedCharDeviceClass *char_dev_class = RED_CHAR_DEVICE_CLASS(klass);
 
-    g_type_class_add_private(klass, sizeof (RedCharDeviceSmartcardPrivate));
-
     object_class->finalize = red_char_device_smartcard_finalize;
 
     char_dev_class->read_one_msg_from_device = smartcard_read_msg_from_device;
@@ -622,7 +615,7 @@ red_char_device_smartcard_class_init(RedCharDeviceSmartcardClass *klass)
 static void
 red_char_device_smartcard_init(RedCharDeviceSmartcard *self)
 {
-    self->priv = RED_CHAR_DEVICE_SMARTCARD_PRIVATE(self);
+    self->priv = red_char_device_smartcard_get_instance_private(self);
 
     self->priv->reader_id = VSCARD_UNDEFINED_READER_ID;
     self->priv->buf_size = APDUBufSize + sizeof(VSCMsgHeader);
-- 
2.20.1

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