%% Created: 08.06.01
%% RCS-ID: $Id$
%% Copyright: (c) 2001 Vadim Zeitlin
-%% License: wxWindows license
+%% License: wxWidgets license
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\section{\class{wxSingleInstanceChecker}}\label{wxsingleinstancechecker}
\helpref{IsAnotherRunning()}{wxsingleinstancecheckerisanotherrunning} to check
for it.
+\wxheading{Note}
+
+One of possible reasons while Create may fail on Unix is that the lock file
+used for checking already exists but was not created by the user.
+Therefore applications shouldn't treat failure of this function as fatal
+condition, because doing so would open them to the possibility of a Denial of
+Service attack. Instead, they should alert the user about the problem and
+offer to continue execution without checking if another instance is running.
+
\membersection{wxSingleInstanceChecker::IsAnotherRunning}\label{wxsingleinstancecheckerisanotherrunning}
\constfunc{bool}{IsAnotherRunning}{\void}