commit 60e705c51c66373f78e536e0462744a610c27cf6
author Daniel P. Berrange <berrange@redhat.com> Thu Aug 11 15:20:58 2016 +0100
committer Daniel P. Berrange <berrange@redhat.com> Mon Jan 23 15:32:18 2017 +0000
tree a92d50a052c105d1554b11ab4c89a90f15a54be0
parent 1a447e4f0266d757687b38146795b95525d37d94

io: change the QIOTask callback signature

Currently the QIOTaskFunc signature takes an Object * for
the source, and an Error * for any error. We also need to
be able to provide a result pointer. Rather than continue
to add parameters to QIOTaskFunc, remove the existing
ones and simply pass the QIOTask object instead. This
has methods to access all the other data items required
in the callback impl.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

ui/vnc-ws.c

diff --git a/ui/vnc-ws.c b/ui/vnc-ws.c
index bffb484..f530cd5 100644
--- a/ui/vnc-ws.c
+++ b/ui/vnc-ws.c
@@ -24,15 +24,16 @@
 #include "io/channel-websock.h"
 #include "qemu/bswap.h"
 
-static void vncws_tls_handshake_done(Object *source,
-                                     Error *err,
+static void vncws_tls_handshake_done(QIOTask *task,
                                      gpointer user_data)
 {
     VncState *vs = user_data;
+    Error *err = NULL;
 
-    if (err) {
+    if (qio_task_propagate_error(task, &err)) {
         VNC_DEBUG("Handshake failed %s\n", error_get_pretty(err));
         vnc_client_error(vs);
+        error_free(err);
     } else {
         VNC_DEBUG("TLS handshake complete, starting websocket handshake\n");
         vs->ioc_tag = qio_channel_add_watch(
@@ -83,15 +84,16 @@
 }
 
 
-static void vncws_handshake_done(Object *source,
-                                 Error *err,
+static void vncws_handshake_done(QIOTask *task,
                                  gpointer user_data)
 {
     VncState *vs = user_data;
+    Error *err = NULL;
 
-    if (err) {
+    if (qio_task_propagate_error(task, &err)) {
         VNC_DEBUG("Websock handshake failed %s\n", error_get_pretty(err));
         vnc_client_error(vs);
+        error_free(err);
     } else {
         VNC_DEBUG("Websock handshake complete, starting VNC protocol\n");
         vnc_start_protocol(vs);