xfixes: Add ClientDisconnectMode

The Xserver itself is capable of terminating itself once all X11 clients
are gone, yet in a typical full session, there are a number of X11
clients running continuously (e.g. the Xsettings daemon, IBus, etc.).

Those always-running clients will prevent the Xserver from terminating,
because the actual number of X11 clients will never drop to 0.

To solve this issue directly at the Xserver level, this add new entries
to the XFixes extension to let the X11 clients themselves specify the
disconnect mode they expect.

Typically, those X11 daemon clients would specify the disconnect mode
XFixesClientDisconnectFlagTerminate to let the Xserver know that they
should not be accounted for when checking the remaining clients prior
to terminate.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/include/X11/extensions/xfixesproto.h b/include/X11/extensions/xfixesproto.h
index b18b306..96c1b21 100644
--- a/include/X11/extensions/xfixesproto.h
+++ b/include/X11/extensions/xfixesproto.h
@@ -532,6 +532,40 @@ typedef struct {
 
 #define sz_xXFixesDestroyPointerBarrierReq 8
 
+/*************** Version 6.0 ******************/
+
+typedef struct {
+    CARD8   reqType;
+    CARD8   xfixesReqType;
+    CARD16  length;
+    CARD32  disconnect_mode;
+} xXFixesSetClientDisconnectModeReq;
+
+#define sz_xXFixesSetClientDisconnectModeReq    8
+
+typedef struct {
+    CARD8   reqType;
+    CARD8   xfixesReqType;
+    CARD16  length;
+} xXFixesGetClientDisconnectModeReq;
+
+#define sz_xXFixesGetClientDisconnectModeReq    4
+
+typedef struct {
+    BYTE        type;                   /* X_Reply */
+    CARD8       pad0;
+    CARD16      sequenceNumber;
+    CARD32      length;
+    CARD32      disconnect_mode;
+    CARD32      pad1;
+    CARD32      pad2;
+    CARD32      pad3;
+    CARD32      pad4;
+    CARD32      pad5;
+} xXFixesGetClientDisconnectModeReply;
+
+#define sz_xXFixesGetClientDisconnectModeReply	32
+
 #undef Barrier
 #undef Region
 #undef Picture