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authorUlrich Sibiller <uli42@gmx.de>2020-01-04 17:10:01 +0100
committerMike Gabriel <mike.gabriel@das-netzwerkteam.de>2020-01-06 00:50:30 +0100
commit61619be524b0606d54099a8e8bf2a8c36fcb4fe0 (patch)
treea6e04f895431cd8a506e54c3884b8fe4dea0de07
parent209c8d8c5d71ebdc4390059c5e4378a0d60ef368 (diff)
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Display.c: add a describing comment for nxagentDisplayErrorPredicate
-rw-r--r--nx-X11/programs/Xserver/hw/nxagent/Display.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Display.c b/nx-X11/programs/Xserver/hw/nxagent/Display.c
index 1eacd3315..66562a926 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Display.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Display.c
@@ -754,6 +754,20 @@ static void nxagentDisplayFlushHandler(Display *display, int length)
}
}
+/*
+ * From the changelog for nx-X11-3.0.0-4:
+ * "Added the _NXDisplayErrorPredicate function in XlibInt.c. It is
+ * actually a pointer to a function called whenever Xlib is going to
+ * perform a network operation. If the function returns true, the
+ * call will be aborted and Xlib will return the control to the ap-
+ * plication. It is up to the application to set the XlibDisplayIO-
+ * Error flag after the _NXDisplayErrorPredicate returns true. The
+ * function can be used to activate additional checks, besides the
+ * normal failures detected by Xlib on the display socket. For exam-
+ * ple, the application can set the funciton to verify if an inter-
+ * rupt was received or if any other event occurred mandating the
+ + end of the session."
+ */
static int nxagentDisplayErrorPredicate(Display *display, int error)
{
#ifdef TEST