From 90cd03a30ee96779ee9ae36a84b387452e256358 Mon Sep 17 00:00:00 2001
From: "Daniel P. Berrange" <berrange@redhat.com>
Date: Thu, 29 Sep 2016 16:45:39 +0100
Subject: ui: move some initialization out of vnc_init_state

Most of the fields in VncState are initialized in the
vnc_connect() method, but some are done in vnc_init_state()
instead.

The purpose of having vnc_init_state() is to delay starting
of the VNC wire protocol until after the websockets handshake
has completed. As such the vnc_init_state() method only needs
to be used for initialization that is dependant on the wire
protocol running.

This also lets us get rid of the initialized boolean flag
from the VncState struct.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1475163940-26094-9-git-send-email-berrange@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 ui/vnc.c | 49 +++++++++++++++++++++++--------------------------
 ui/vnc.h |  1 -
 2 files changed, 23 insertions(+), 27 deletions(-)

(limited to 'ui')

diff --git a/ui/vnc.c b/ui/vnc.c
index 7c8f07d558..c10a003b88 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -1222,13 +1222,13 @@ void vnc_disconnect_finish(VncState *vs)
     audio_del(vs);
     vnc_release_modifiers(vs);
 
-    if (vs->initialized) {
-        QTAILQ_REMOVE(&vs->vd->clients, vs, next);
+    if (vs->mouse_mode_notifier.notify != NULL) {
         qemu_remove_mouse_mode_change_notifier(&vs->mouse_mode_notifier);
-        if (QTAILQ_EMPTY(&vs->vd->clients)) {
-            /* last client gone */
-            vnc_update_server_surface(vs->vd);
-        }
+    }
+    QTAILQ_REMOVE(&vs->vd->clients, vs, next);
+    if (QTAILQ_EMPTY(&vs->vd->clients)) {
+        /* last client gone */
+        vnc_update_server_surface(vs->vd);
     }
 
     if (vs->vd->lock_key_sync)
@@ -2978,6 +2978,7 @@ static void vnc_connect(VncDisplay *vd, QIOChannelSocket *sioc,
                         bool skipauth, bool websocket)
 {
     VncState *vs = g_new0(VncState, 1);
+    bool first_client = QTAILQ_EMPTY(&vd->clients);
     int i;
 
     vs->sioc = sioc;
@@ -3045,26 +3046,6 @@ static void vnc_connect(VncDisplay *vd, QIOChannelSocket *sioc,
     vnc_qmp_event(vs, QAPI_EVENT_VNC_CONNECTED);
     vnc_set_share_mode(vs, VNC_SHARE_MODE_CONNECTING);
 
-    if (!vs->websocket) {
-        vnc_init_state(vs);
-    }
-
-    if (vd->num_connecting > vd->connections_limit) {
-        QTAILQ_FOREACH(vs, &vd->clients, next) {
-            if (vs->share_mode == VNC_SHARE_MODE_CONNECTING) {
-                vnc_disconnect_start(vs);
-                return;
-            }
-        }
-    }
-}
-
-void vnc_init_state(VncState *vs)
-{
-    vs->initialized = true;
-    VncDisplay *vd = vs->vd;
-    bool first_client = QTAILQ_EMPTY(&vd->clients);
-
     vs->last_x = -1;
     vs->last_y = -1;
 
@@ -3083,6 +3064,22 @@ void vnc_init_state(VncState *vs)
 
     graphic_hw_update(vd->dcl.con);
 
+    if (!vs->websocket) {
+        vnc_init_state(vs);
+    }
+
+    if (vd->num_connecting > vd->connections_limit) {
+        QTAILQ_FOREACH(vs, &vd->clients, next) {
+            if (vs->share_mode == VNC_SHARE_MODE_CONNECTING) {
+                vnc_disconnect_start(vs);
+                return;
+            }
+        }
+    }
+}
+
+void vnc_init_state(VncState *vs)
+{
     vnc_write(vs, "RFB 003.008\n", 12);
     vnc_flush(vs);
     vnc_read_when(vs, protocol_version, 12);
diff --git a/ui/vnc.h b/ui/vnc.h
index d191d88356..e48e155ce4 100644
--- a/ui/vnc.h
+++ b/ui/vnc.h
@@ -307,7 +307,6 @@ struct VncState
     QEMUPutLEDEntry *led;
 
     bool abort;
-    bool initialized;
     QemuMutex output_mutex;
     QEMUBH *bh;
     Buffer jobs_buffer;
-- 
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