yank: Remove dependency on qiochannel

Remove dependency on qiochannel by removing yank_generic_iochannel and
letting migration and chardev use their own yank function for
iochannel.

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20ff143fc2db23e27cd41d38043e481376c9cec1.1616521341.git.lukasstraub2@web.de>
diff --git a/chardev/char-socket.c b/chardev/char-socket.c
index f618bde..1d455ec 100644
--- a/chardev/char-socket.c
+++ b/chardev/char-socket.c
@@ -402,6 +402,13 @@
     }
 }
 
+static void char_socket_yank_iochannel(void *opaque)
+{
+    QIOChannel *ioc = QIO_CHANNEL(opaque);
+
+    qio_channel_shutdown(ioc, QIO_CHANNEL_SHUTDOWN_BOTH, NULL);
+}
+
 static void tcp_chr_free_connection(Chardev *chr)
 {
     SocketChardev *s = SOCKET_CHARDEV(chr);
@@ -424,7 +431,7 @@
         (s->state == TCP_CHARDEV_STATE_CONNECTING
         || s->state == TCP_CHARDEV_STATE_CONNECTED)) {
         yank_unregister_function(CHARDEV_YANK_INSTANCE(chr->label),
-                                 yank_generic_iochannel,
+                                 char_socket_yank_iochannel,
                                  QIO_CHANNEL(s->sioc));
     }
     object_unref(OBJECT(s->sioc));
@@ -946,7 +953,7 @@
     tcp_chr_set_client_ioc_name(chr, sioc);
     if (s->registered_yank) {
         yank_register_function(CHARDEV_YANK_INSTANCE(chr->label),
-                               yank_generic_iochannel,
+                               char_socket_yank_iochannel,
                                QIO_CHANNEL(sioc));
     }
     ret = tcp_chr_new_client(chr, sioc);
@@ -965,7 +972,7 @@
     tcp_chr_set_client_ioc_name(chr, cioc);
     if (s->registered_yank) {
         yank_register_function(CHARDEV_YANK_INSTANCE(chr->label),
-                               yank_generic_iochannel,
+                               char_socket_yank_iochannel,
                                QIO_CHANNEL(cioc));
     }
     tcp_chr_new_client(chr, cioc);
@@ -985,7 +992,7 @@
     }
     if (s->registered_yank) {
         yank_register_function(CHARDEV_YANK_INSTANCE(chr->label),
-                               yank_generic_iochannel,
+                               char_socket_yank_iochannel,
                                QIO_CHANNEL(sioc));
     }
     tcp_chr_new_client(chr, sioc);
@@ -1005,7 +1012,7 @@
     tcp_chr_set_client_ioc_name(chr, sioc);
     if (s->registered_yank) {
         yank_register_function(CHARDEV_YANK_INSTANCE(chr->label),
-                               yank_generic_iochannel,
+                               char_socket_yank_iochannel,
                                QIO_CHANNEL(sioc));
     }
     tcp_chr_new_client(chr, sioc);
@@ -1138,7 +1145,7 @@
         tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED);
         if (s->registered_yank) {
             yank_unregister_function(CHARDEV_YANK_INSTANCE(chr->label),
-                                     yank_generic_iochannel,
+                                     char_socket_yank_iochannel,
                                      QIO_CHANNEL(sioc));
         }
         check_report_connect_error(chr, err);
@@ -1176,7 +1183,7 @@
     tcp_chr_set_client_ioc_name(chr, sioc);
     if (s->registered_yank) {
         yank_register_function(CHARDEV_YANK_INSTANCE(chr->label),
-                               yank_generic_iochannel,
+                               char_socket_yank_iochannel,
                                QIO_CHANNEL(sioc));
     }
     /*