[Qemu-devel] [PATCH 1/2] console: track gl_block state in QemuConsole

[Gerd Hoffmann <kraxel@redhat.com>]

Keep track of gl_block state (added in bba19b8 console: block rendering
until client is done) in QemuConsole and allow to query it.  This way
we can avoid state inconsistencies in case different code paths make use
of this.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 include/ui/console.h |  1 +
 ui/console.c         | 15 +++++++++++----
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/include/ui/console.h b/include/ui/console.h
index d9c13d2..e2589e2 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -387,6 +387,7 @@ QemuConsole *qemu_console_lookup_by_device_name(const char *device_id,
 bool qemu_console_is_visible(QemuConsole *con);
 bool qemu_console_is_graphic(QemuConsole *con);
 bool qemu_console_is_fixedsize(QemuConsole *con);
+bool qemu_console_is_gl_blocked(QemuConsole *con);
 char *qemu_console_get_label(QemuConsole *con);
 int qemu_console_get_index(QemuConsole *con);
 uint32_t qemu_console_get_head(QemuConsole *con);
diff --git a/ui/console.c b/ui/console.c
index 3940762..f077eb8 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -123,6 +123,7 @@ struct QemuConsole {
     DisplaySurface *surface;
     int dcls;
     DisplayChangeListener *gl;
+    bool gl_block;
 
     /* Graphic console state.  */
     Object *device;
@@ -264,10 +265,10 @@ void graphic_hw_update(QemuConsole *con)
 
 void graphic_hw_gl_block(QemuConsole *con, bool block)
 {
-    if (!con) {
-        con = active_console;
-    }
-    if (con && con->hw_ops->gl_block) {
+    assert(con != NULL);
+
+    con->gl_block = block;
+    if (con->hw_ops->gl_block) {
         con->hw_ops->gl_block(con->hw, block);
     }
 }
@@ -1879,6 +1880,12 @@ bool qemu_console_is_fixedsize(QemuConsole *con)
     return con && (con->console_type != TEXT_CONSOLE);
 }
 
+bool qemu_console_is_gl_blocked(QemuConsole *con)
+{
+    assert(con != NULL);
+    return con->gl_block;
+}
+
 char *qemu_console_get_label(QemuConsole *con)
 {
     if (con->console_type == GRAPHIC_CONSOLE) {
-- 
1.8.3.1