1 files changed, 56 insertions, 0 deletions
diff --git a/common/lockfile.cpp b/common/lockfile.cpp
new file mode 100644
index 0000000..b3c3714
--- /dev/null
+++ b/common/lockfile.cpp
@@ -0,0 +1,56 @@
+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2014-2015 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
+ * Copyright (C) 2014-2015 KiCad Developers, see CHANGELOG.TXT for contributors.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+#include <wx/filename.h>
+#include <wx/snglinst.h>
+#include <common.h>
+
+
+wxSingleInstanceChecker* LockFile( const wxString& aFileName )
+{
+    // first make absolute and normalize, to avoid that different lock files
+    // for the same file can be created
+    wxFileName fn( aFileName );
+
+    fn.MakeAbsolute();
+
+    wxString lockFileName = fn.GetFullPath() + wxT( ".lock" );
+
+    lockFileName.Replace( wxT( "/" ), wxT( "_" ) );
+
+    // We can have filenames coming from Windows, so also convert Windows separator
+    lockFileName.Replace( wxT( "\\" ), wxT( "_" ) );
+
+    wxSingleInstanceChecker* p = new wxSingleInstanceChecker( lockFileName,
+                                                              GetKicadLockFilePath() );
+
+    if( p->IsAnotherRunning() )
+    {
+        delete p;
+        p = NULL;
+    }
+
+    return p;
+}
+