[Qemu-devel] [PATCH v11 19/24] input: Convert to new qapi union layout

[Eric Blake]

We have two issues with our qapi union layout:
1) Even though the QMP wire format spells the tag 'type', the
C code spells it 'kind', requiring some hacks in the generator.
2) The C struct uses an anonymous union, which places all tag
values in the same namespace as all non-variant members. This
leads to spurious collisions if a tag value matches a QMP name.

Make the conversion to the new layout for input-related code.

Signed-off-by: Eric Blake <address@hidden>

---
v11: no change
v10: no change
v9: new patch, but incorporates parts of v5 31/46 and Markus' RFC:
http://lists.gnu.org/archive/html/qemu-devel/2015-10/msg02236.html
---
 hmp.c                       |  8 ++---
 hw/char/escc.c              | 12 +++----
 hw/input/hid.c              | 32 ++++++++---------
 hw/input/ps2.c              | 24 ++++++-------
 hw/input/virtio-input-hid.c | 27 ++++++++-------
 ui/console.c                | 20 +++++------
 ui/input-keymap.c           | 20 +++++------
 ui/input-legacy.c           | 21 ++++++------
 ui/input.c                  | 84 ++++++++++++++++++++++-----------------------
 9 files changed, 125 insertions(+), 123 deletions(-)

diff --git a/hmp.c b/hmp.c
index 88fd804..cc4946d 100644
--- a/hmp.c
+++ b/hmp.c
@@ -1735,15 +1735,15 @@ void hmp_sendkey(Monitor *mon, const QDict *qdict)
             if (*endp != '\0') {
                 goto err_out;
             }
-            keylist->value->kind = KEY_VALUE_KIND_NUMBER;
-            keylist->value->number = value;
+            keylist->value->type = KEY_VALUE_KIND_NUMBER;
+            keylist->value->u.number = value;
         } else {
             int idx = index_from_key(keyname_buf);
             if (idx == Q_KEY_CODE_MAX) {
                 goto err_out;
             }
-            keylist->value->kind = KEY_VALUE_KIND_QCODE;
-            keylist->value->qcode = idx;
+            keylist->value->type = KEY_VALUE_KIND_QCODE;
+            keylist->value->u.qcode = idx;
         }

         if (!separator) {
diff --git a/hw/char/escc.c b/hw/char/escc.c
index 9816154..c9840e1 100644
--- a/hw/char/escc.c
+++ b/hw/char/escc.c
@@ -842,13 +842,13 @@ static void sunkbd_handle_event(DeviceState *dev, 
QemuConsole *src,
     ChannelState *s = (ChannelState *)dev;
     int qcode, keycode;

-    assert(evt->kind == INPUT_EVENT_KIND_KEY);
-    qcode = qemu_input_key_value_to_qcode(evt->key->key);
+    assert(evt->type == INPUT_EVENT_KIND_KEY);
+    qcode = qemu_input_key_value_to_qcode(evt->u.key->key);
     trace_escc_sunkbd_event_in(qcode, QKeyCode_lookup[qcode],
-                               evt->key->down);
+                               evt->u.key->down);

     if (qcode == Q_KEY_CODE_CAPS_LOCK) {
-        if (evt->key->down) {
+        if (evt->u.key->down) {
             s->caps_lock_mode ^= 1;
             if (s->caps_lock_mode == 2) {
                 return; /* Drop second press */
@@ -862,7 +862,7 @@ static void sunkbd_handle_event(DeviceState *dev, 
QemuConsole *src,
     }

     if (qcode == Q_KEY_CODE_NUM_LOCK) {
-        if (evt->key->down) {
+        if (evt->u.key->down) {
             s->num_lock_mode ^= 1;
             if (s->num_lock_mode == 2) {
                 return; /* Drop second press */
@@ -876,7 +876,7 @@ static void sunkbd_handle_event(DeviceState *dev, 
QemuConsole *src,
     }

     keycode = qcode_to_keycode[qcode];
-    if (!evt->key->down) {
+    if (!evt->u.key->down) {
         keycode |= 0x80;
     }
     trace_escc_sunkbd_event_out(keycode);
diff --git a/hw/input/hid.c b/hw/input/hid.c
index 21ebd9e..e39269f 100644
--- a/hw/input/hid.c
+++ b/hw/input/hid.c
@@ -119,33 +119,33 @@ static void hid_pointer_event(DeviceState *dev, 
QemuConsole *src,
     assert(hs->n < QUEUE_LENGTH);
     e = &hs->ptr.queue[(hs->head + hs->n) & QUEUE_MASK];

-    switch (evt->kind) {
+    switch (evt->type) {
     case INPUT_EVENT_KIND_REL:
-        if (evt->rel->axis == INPUT_AXIS_X) {
-            e->xdx += evt->rel->value;
-        } else if (evt->rel->axis == INPUT_AXIS_Y) {
-            e->ydy += evt->rel->value;
+        if (evt->u.rel->axis == INPUT_AXIS_X) {
+            e->xdx += evt->u.rel->value;
+        } else if (evt->u.rel->axis == INPUT_AXIS_Y) {
+            e->ydy += evt->u.rel->value;
         }
         break;

     case INPUT_EVENT_KIND_ABS:
-        if (evt->rel->axis == INPUT_AXIS_X) {
-            e->xdx = evt->rel->value;
-        } else if (evt->rel->axis == INPUT_AXIS_Y) {
-            e->ydy = evt->rel->value;
+        if (evt->u.rel->axis == INPUT_AXIS_X) {
+            e->xdx = evt->u.rel->value;
+        } else if (evt->u.rel->axis == INPUT_AXIS_Y) {
+            e->ydy = evt->u.rel->value;
         }
         break;

     case INPUT_EVENT_KIND_BTN:
-        if (evt->btn->down) {
-            e->buttons_state |= bmap[evt->btn->button];
-            if (evt->btn->button == INPUT_BUTTON_WHEEL_UP) {
+        if (evt->u.btn->down) {
+            e->buttons_state |= bmap[evt->u.btn->button];
+            if (evt->u.btn->button == INPUT_BUTTON_WHEEL_UP) {
                 e->dz--;
-            } else if (evt->btn->button == INPUT_BUTTON_WHEEL_DOWN) {
+            } else if (evt->u.btn->button == INPUT_BUTTON_WHEEL_DOWN) {
                 e->dz++;
             }
         } else {
-            e->buttons_state &= ~bmap[evt->btn->button];
+            e->buttons_state &= ~bmap[evt->u.btn->button];
         }
         break;

@@ -223,8 +223,8 @@ static void hid_keyboard_event(DeviceState *dev, 
QemuConsole *src,
     int scancodes[3], i, count;
     int slot;

-    count = qemu_input_key_value_to_scancode(evt->key->key,
-                                             evt->key->down,
+    count = qemu_input_key_value_to_scancode(evt->u.key->key,
+                                             evt->u.key->down,
                                              scancodes);
     if (hs->n + count > QUEUE_LENGTH) {
         fprintf(stderr, "usb-kbd: warning: key event queue full\n");
diff --git a/hw/input/ps2.c b/hw/input/ps2.c
index fdbe565..3d6d496 100644
--- a/hw/input/ps2.c
+++ b/hw/input/ps2.c
@@ -183,8 +183,8 @@ static void ps2_keyboard_event(DeviceState *dev, 
QemuConsole *src,
     int scancodes[3], i, count;

     qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
-    count = qemu_input_key_value_to_scancode(evt->key->key,
-                                             evt->key->down,
+    count = qemu_input_key_value_to_scancode(evt->u.key->key,
+                                             evt->u.key->down,
                                              scancodes);
     for (i = 0; i < count; i++) {
         ps2_put_keycode(s, scancodes[i]);
@@ -393,25 +393,25 @@ static void ps2_mouse_event(DeviceState *dev, QemuConsole 
*src,
     if (!(s->mouse_status & MOUSE_STATUS_ENABLED))
         return;

-    switch (evt->kind) {
+    switch (evt->type) {
     case INPUT_EVENT_KIND_REL:
-        if (evt->rel->axis == INPUT_AXIS_X) {
-            s->mouse_dx += evt->rel->value;
-        } else if (evt->rel->axis == INPUT_AXIS_Y) {
-            s->mouse_dy -= evt->rel->value;
+        if (evt->u.rel->axis == INPUT_AXIS_X) {
+            s->mouse_dx += evt->u.rel->value;
+        } else if (evt->u.rel->axis == INPUT_AXIS_Y) {
+            s->mouse_dy -= evt->u.rel->value;
         }
         break;

     case INPUT_EVENT_KIND_BTN:
-        if (evt->btn->down) {
-            s->mouse_buttons |= bmap[evt->btn->button];
-            if (evt->btn->button == INPUT_BUTTON_WHEEL_UP) {
+        if (evt->u.btn->down) {
+            s->mouse_buttons |= bmap[evt->u.btn->button];
+            if (evt->u.btn->button == INPUT_BUTTON_WHEEL_UP) {
                 s->mouse_dz--;
-            } else if (evt->btn->button == INPUT_BUTTON_WHEEL_DOWN) {
+            } else if (evt->u.btn->button == INPUT_BUTTON_WHEEL_DOWN) {
                 s->mouse_dz++;
             }
         } else {
-            s->mouse_buttons &= ~bmap[evt->btn->button];
+            s->mouse_buttons &= ~bmap[evt->u.btn->button];
         }
         break;

diff --git a/hw/input/virtio-input-hid.c b/hw/input/virtio-input-hid.c
index 4d85dad..bdd479c 100644
--- a/hw/input/virtio-input-hid.c
+++ b/hw/input/virtio-input-hid.c
@@ -191,44 +191,45 @@ static void virtio_input_handle_event(DeviceState *dev, 
QemuConsole *src,
     virtio_input_event event;
     int qcode;

-    switch (evt->kind) {
+    switch (evt->type) {
     case INPUT_EVENT_KIND_KEY:
-        qcode = qemu_input_key_value_to_qcode(evt->key->key);
+        qcode = qemu_input_key_value_to_qcode(evt->u.key->key);
         if (qcode && keymap_qcode[qcode]) {
             event.type  = cpu_to_le16(EV_KEY);
             event.code  = cpu_to_le16(keymap_qcode[qcode]);
-            event.value = cpu_to_le32(evt->key->down ? 1 : 0);
+            event.value = cpu_to_le32(evt->u.key->down ? 1 : 0);
             virtio_input_send(vinput, &event);
         } else {
-            if (evt->key->down) {
+            if (evt->u.key->down) {
                 fprintf(stderr, "%s: unmapped key: %d [%s]\n", __func__,
                         qcode, QKeyCode_lookup[qcode]);
             }
         }
         break;
     case INPUT_EVENT_KIND_BTN:
-        if (keymap_button[evt->btn->button]) {
+        if (keymap_button[evt->u.btn->button]) {
             event.type  = cpu_to_le16(EV_KEY);
-            event.code  = cpu_to_le16(keymap_button[evt->btn->button]);
-            event.value = cpu_to_le32(evt->btn->down ? 1 : 0);
+            event.code  = cpu_to_le16(keymap_button[evt->u.btn->button]);
+            event.value = cpu_to_le32(evt->u.btn->down ? 1 : 0);
             virtio_input_send(vinput, &event);
         } else {
-            if (evt->btn->down) {
+            if (evt->u.btn->down) {
                 fprintf(stderr, "%s: unmapped button: %d [%s]\n", __func__,
-                        evt->btn->button, 
InputButton_lookup[evt->btn->button]);
+                        evt->u.btn->button,
+                        InputButton_lookup[evt->u.btn->button]);
             }
         }
         break;
     case INPUT_EVENT_KIND_REL:
         event.type  = cpu_to_le16(EV_REL);
-        event.code  = cpu_to_le16(axismap_rel[evt->rel->axis]);
-        event.value = cpu_to_le32(evt->rel->value);
+        event.code  = cpu_to_le16(axismap_rel[evt->u.rel->axis]);
+        event.value = cpu_to_le32(evt->u.rel->value);
         virtio_input_send(vinput, &event);
         break;
     case INPUT_EVENT_KIND_ABS:
         event.type  = cpu_to_le16(EV_ABS);
-        event.code  = cpu_to_le16(axismap_abs[evt->abs->axis]);
-        event.value = cpu_to_le32(evt->abs->value);
+        event.code  = cpu_to_le16(axismap_abs[evt->u.abs->axis]);
+        event.value = cpu_to_le32(evt->u.abs->value);
         virtio_input_send(vinput, &event);
         break;
     default:
diff --git a/ui/console.c b/ui/console.c
index cf649b2..f26544e 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -2016,7 +2016,7 @@ static VcHandler *vc_handler = text_console_init;
 static CharDriverState *vc_init(const char *id, ChardevBackend *backend,
                                 ChardevReturn *ret, Error **errp)
 {
-    return vc_handler(backend->vc, errp);
+    return vc_handler(backend->u.vc, errp);
 }

 void register_vc_handler(VcHandler *handler)
@@ -2057,30 +2057,30 @@ static void qemu_chr_parse_vc(QemuOpts *opts, 
ChardevBackend *backend,
 {
     int val;

-    backend->vc = g_new0(ChardevVC, 1);
+    backend->u.vc = g_new0(ChardevVC, 1);

     val = qemu_opt_get_number(opts, "width", 0);
     if (val != 0) {
-        backend->vc->has_width = true;
-        backend->vc->width = val;
+        backend->u.vc->has_width = true;
+        backend->u.vc->width = val;
     }

     val = qemu_opt_get_number(opts, "height", 0);
     if (val != 0) {
-        backend->vc->has_height = true;
-        backend->vc->height = val;
+        backend->u.vc->has_height = true;
+        backend->u.vc->height = val;
     }

     val = qemu_opt_get_number(opts, "cols", 0);
     if (val != 0) {
-        backend->vc->has_cols = true;
-        backend->vc->cols = val;
+        backend->u.vc->has_cols = true;
+        backend->u.vc->cols = val;
     }

     val = qemu_opt_get_number(opts, "rows", 0);
     if (val != 0) {
-        backend->vc->has_rows = true;
-        backend->vc->rows = val;
+        backend->u.vc->has_rows = true;
+        backend->u.vc->rows = val;
     }
 }

diff --git a/ui/input-keymap.c b/ui/input-keymap.c
index 7635cb0..d36be4b 100644
--- a/ui/input-keymap.c
+++ b/ui/input-keymap.c
@@ -139,11 +139,11 @@ static int number_to_qcode[0x100];

 int qemu_input_key_value_to_number(const KeyValue *value)
 {
-    if (value->kind == KEY_VALUE_KIND_QCODE) {
-        return qcode_to_number[value->qcode];
+    if (value->type == KEY_VALUE_KIND_QCODE) {
+        return qcode_to_number[value->u.qcode];
     } else {
-        assert(value->kind == KEY_VALUE_KIND_NUMBER);
-        return value->number;
+        assert(value->type == KEY_VALUE_KIND_NUMBER);
+        return value->u.number;
     }
 }

@@ -166,11 +166,11 @@ int qemu_input_key_number_to_qcode(uint8_t nr)

 int qemu_input_key_value_to_qcode(const KeyValue *value)
 {
-    if (value->kind == KEY_VALUE_KIND_QCODE) {
-        return value->qcode;
+    if (value->type == KEY_VALUE_KIND_QCODE) {
+        return value->u.qcode;
     } else {
-        assert(value->kind == KEY_VALUE_KIND_NUMBER);
-        return qemu_input_key_number_to_qcode(value->number);
+        assert(value->type == KEY_VALUE_KIND_NUMBER);
+        return qemu_input_key_number_to_qcode(value->u.number);
     }
 }

@@ -180,8 +180,8 @@ int qemu_input_key_value_to_scancode(const KeyValue *value, 
bool down,
     int keycode = qemu_input_key_value_to_number(value);
     int count = 0;

-    if (value->kind == KEY_VALUE_KIND_QCODE &&
-        value->qcode == Q_KEY_CODE_PAUSE) {
+    if (value->type == KEY_VALUE_KIND_QCODE &&
+        value->u.qcode == Q_KEY_CODE_PAUSE) {
         /* specific case */
         int v = down ? 0 : 0x80;
         codes[count++] = 0xe1;
diff --git a/ui/input-legacy.c b/ui/input-legacy.c
index e50f296..a67ed32 100644
--- a/ui/input-legacy.c
+++ b/ui/input-legacy.c
@@ -113,8 +113,8 @@ static void legacy_kbd_event(DeviceState *dev, QemuConsole 
*src,
     if (!entry || !entry->put_kbd) {
         return;
     }
-    count = qemu_input_key_value_to_scancode(evt->key->key,
-                                             evt->key->down,
+    count = qemu_input_key_value_to_scancode(evt->u.key->key,
+                                             evt->u.key->down,
                                              scancodes);
     for (i = 0; i < count; i++) {
         entry->put_kbd(entry->opaque, scancodes[i]);
@@ -150,21 +150,22 @@ static void legacy_mouse_event(DeviceState *dev, 
QemuConsole *src,
     };
     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;

-    switch (evt->kind) {
+    switch (evt->type) {
     case INPUT_EVENT_KIND_BTN:
-        if (evt->btn->down) {
-            s->buttons |= bmap[evt->btn->button];
+        if (evt->u.btn->down) {
+            s->buttons |= bmap[evt->u.btn->button];
         } else {
-            s->buttons &= ~bmap[evt->btn->button];
+            s->buttons &= ~bmap[evt->u.btn->button];
         }
-        if (evt->btn->down && evt->btn->button == INPUT_BUTTON_WHEEL_UP) {
+        if (evt->u.btn->down && evt->u.btn->button == INPUT_BUTTON_WHEEL_UP) {
             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
                                     s->axis[INPUT_AXIS_X],
                                     s->axis[INPUT_AXIS_Y],
                                     -1,
                                     s->buttons);
         }
-        if (evt->btn->down && evt->btn->button == INPUT_BUTTON_WHEEL_DOWN) {
+        if (evt->u.btn->down &&
+            evt->u.btn->button == INPUT_BUTTON_WHEEL_DOWN) {
             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
                                     s->axis[INPUT_AXIS_X],
                                     s->axis[INPUT_AXIS_Y],
@@ -173,10 +174,10 @@ static void legacy_mouse_event(DeviceState *dev, 
QemuConsole *src,
         }
         break;
     case INPUT_EVENT_KIND_ABS:
-        s->axis[evt->abs->axis] = evt->abs->value;
+        s->axis[evt->u.abs->axis] = evt->u.abs->value;
         break;
     case INPUT_EVENT_KIND_REL:
-        s->axis[evt->rel->axis] += evt->rel->value;
+        s->axis[evt->u.rel->axis] += evt->u.rel->value;
         break;
     default:
         break;
diff --git a/ui/input.c b/ui/input.c
index 1a552d1..643f885 100644
--- a/ui/input.c
+++ b/ui/input.c
@@ -147,10 +147,10 @@ void qmp_x_input_send_event(bool has_console, int64_t 
console,
     for (e = events; e != NULL; e = e->next) {
         InputEvent *event = e->value;

-        if (!qemu_input_find_handler(1 << event->kind, con)) {
+        if (!qemu_input_find_handler(1 << event->type, con)) {
             error_setg(errp, "Input handler not found for "
                              "event type %s",
-                            InputEventKind_lookup[event->kind]);
+                            InputEventKind_lookup[event->type]);
             return;
         }
     }
@@ -168,22 +168,22 @@ static void qemu_input_transform_abs_rotate(InputEvent 
*evt)
 {
     switch (graphic_rotate) {
     case 90:
-        if (evt->abs->axis == INPUT_AXIS_X) {
-            evt->abs->axis = INPUT_AXIS_Y;
-        } else if (evt->abs->axis == INPUT_AXIS_Y) {
-            evt->abs->axis = INPUT_AXIS_X;
-            evt->abs->value = INPUT_EVENT_ABS_SIZE - 1 - evt->abs->value;
+        if (evt->u.abs->axis == INPUT_AXIS_X) {
+            evt->u.abs->axis = INPUT_AXIS_Y;
+        } else if (evt->u.abs->axis == INPUT_AXIS_Y) {
+            evt->u.abs->axis = INPUT_AXIS_X;
+            evt->u.abs->value = INPUT_EVENT_ABS_SIZE - 1 - evt->u.abs->value;
         }
         break;
     case 180:
-        evt->abs->value = INPUT_EVENT_ABS_SIZE - 1 - evt->abs->value;
+        evt->u.abs->value = INPUT_EVENT_ABS_SIZE - 1 - evt->u.abs->value;
         break;
     case 270:
-        if (evt->abs->axis == INPUT_AXIS_X) {
-            evt->abs->axis = INPUT_AXIS_Y;
-            evt->abs->value = INPUT_EVENT_ABS_SIZE - 1 - evt->abs->value;
-        } else if (evt->abs->axis == INPUT_AXIS_Y) {
-            evt->abs->axis = INPUT_AXIS_X;
+        if (evt->u.abs->axis == INPUT_AXIS_X) {
+            evt->u.abs->axis = INPUT_AXIS_Y;
+            evt->u.abs->value = INPUT_EVENT_ABS_SIZE - 1 - evt->u.abs->value;
+        } else if (evt->u.abs->axis == INPUT_AXIS_Y) {
+            evt->u.abs->axis = INPUT_AXIS_X;
         }
         break;
     }
@@ -197,18 +197,18 @@ static void qemu_input_event_trace(QemuConsole *src, 
InputEvent *evt)
     if (src) {
         idx = qemu_console_get_index(src);
     }
-    switch (evt->kind) {
+    switch (evt->type) {
     case INPUT_EVENT_KIND_KEY:
-        switch (evt->key->key->kind) {
+        switch (evt->u.key->key->type) {
         case KEY_VALUE_KIND_NUMBER:
-            qcode = qemu_input_key_number_to_qcode(evt->key->key->number);
+            qcode = qemu_input_key_number_to_qcode(evt->u.key->key->u.number);
             name = QKeyCode_lookup[qcode];
-            trace_input_event_key_number(idx, evt->key->key->number,
-                                         name, evt->key->down);
+            trace_input_event_key_number(idx, evt->u.key->key->u.number,
+                                         name, evt->u.key->down);
             break;
         case KEY_VALUE_KIND_QCODE:
-            name = QKeyCode_lookup[evt->key->key->qcode];
-            trace_input_event_key_qcode(idx, name, evt->key->down);
+            name = QKeyCode_lookup[evt->u.key->key->u.qcode];
+            trace_input_event_key_qcode(idx, name, evt->u.key->down);
             break;
         case KEY_VALUE_KIND_MAX:
             /* keep gcc happy */
@@ -216,16 +216,16 @@ static void qemu_input_event_trace(QemuConsole *src, 
InputEvent *evt)
         }
         break;
     case INPUT_EVENT_KIND_BTN:
-        name = InputButton_lookup[evt->btn->button];
-        trace_input_event_btn(idx, name, evt->btn->down);
+        name = InputButton_lookup[evt->u.btn->button];
+        trace_input_event_btn(idx, name, evt->u.btn->down);
         break;
     case INPUT_EVENT_KIND_REL:
-        name = InputAxis_lookup[evt->rel->axis];
-        trace_input_event_rel(idx, name, evt->rel->value);
+        name = InputAxis_lookup[evt->u.rel->axis];
+        trace_input_event_rel(idx, name, evt->u.rel->value);
         break;
     case INPUT_EVENT_KIND_ABS:
-        name = InputAxis_lookup[evt->abs->axis];
-        trace_input_event_abs(idx, name, evt->abs->value);
+        name = InputAxis_lookup[evt->u.abs->axis];
+        trace_input_event_abs(idx, name, evt->u.abs->value);
         break;
     case INPUT_EVENT_KIND_MAX:
         /* keep gcc happy */
@@ -311,12 +311,12 @@ void qemu_input_event_send(QemuConsole *src, InputEvent 
*evt)
     qemu_input_event_trace(src, evt);

     /* pre processing */
-    if (graphic_rotate && (evt->kind == INPUT_EVENT_KIND_ABS)) {
+    if (graphic_rotate && (evt->type == INPUT_EVENT_KIND_ABS)) {
             qemu_input_transform_abs_rotate(evt);
     }

     /* send event */
-    s = qemu_input_find_handler(1 << evt->kind, src);
+    s = qemu_input_find_handler(1 << evt->type, src);
     if (!s) {
         return;
     }
@@ -348,10 +348,10 @@ void qemu_input_event_sync(void)
 InputEvent *qemu_input_event_new_key(KeyValue *key, bool down)
 {
     InputEvent *evt = g_new0(InputEvent, 1);
-    evt->key = g_new0(InputKeyEvent, 1);
-    evt->kind = INPUT_EVENT_KIND_KEY;
-    evt->key->key = key;
-    evt->key->down = down;
+    evt->u.key = g_new0(InputKeyEvent, 1);
+    evt->type = INPUT_EVENT_KIND_KEY;
+    evt->u.key->key = key;
+    evt->u.key->down = down;
     return evt;
 }

@@ -372,16 +372,16 @@ void qemu_input_event_send_key(QemuConsole *src, KeyValue 
*key, bool down)
 void qemu_input_event_send_key_number(QemuConsole *src, int num, bool down)
 {
     KeyValue *key = g_new0(KeyValue, 1);
-    key->kind = KEY_VALUE_KIND_NUMBER;
-    key->number = num;
+    key->type = KEY_VALUE_KIND_NUMBER;
+    key->u.number = num;
     qemu_input_event_send_key(src, key, down);
 }

 void qemu_input_event_send_key_qcode(QemuConsole *src, QKeyCode q, bool down)
 {
     KeyValue *key = g_new0(KeyValue, 1);
-    key->kind = KEY_VALUE_KIND_QCODE;
-    key->qcode = q;
+    key->type = KEY_VALUE_KIND_QCODE;
+    key->u.qcode = q;
     qemu_input_event_send_key(src, key, down);
 }

@@ -398,10 +398,10 @@ void qemu_input_event_send_key_delay(uint32_t delay_ms)
 InputEvent *qemu_input_event_new_btn(InputButton btn, bool down)
 {
     InputEvent *evt = g_new0(InputEvent, 1);
-    evt->btn = g_new0(InputBtnEvent, 1);
-    evt->kind = INPUT_EVENT_KIND_BTN;
-    evt->btn->button = btn;
-    evt->btn->down = down;
+    evt->u.btn = g_new0(InputBtnEvent, 1);
+    evt->type = INPUT_EVENT_KIND_BTN;
+    evt->u.btn->button = btn;
+    evt->u.btn->down = down;
     return evt;
 }

@@ -451,8 +451,8 @@ InputEvent *qemu_input_event_new_move(InputEventKind kind,
     InputEvent *evt = g_new0(InputEvent, 1);
     InputMoveEvent *move = g_new0(InputMoveEvent, 1);

-    evt->kind = kind;
-    evt->data = move;
+    evt->type = kind;
+    evt->u.data = move;
     move->axis = axis;
     move->value = value;
     return evt;
-- 
2.4.3