- Added missing files for new NAPI

nxstack.h

@@ -0,0 +1,43 @@
+/*
+  This is some code to handle a stack of NeXus files. This is used to implement 
+  external linking within the NeXus-API
+
+  Copyright (C) 1997-2006 Mark Koennecke
+  
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2 of the License, or (at your option) any later version.
+ 
+  This library 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
+  Lesser General Public License for more details.
+ 
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ 
+  For further information, see <http://www.neutron.anl.gov/NeXus/>
+*/
+#ifndef NEXUSFILESTACK
+#define NEXUSFILESTACK
+
+typedef struct __fileStack *pFileStack;
+#define MAXEXTERNALDEPTH 16
+
+pFileStack makeFileStack();
+void killFileStack(pFileStack self);
+
+void pushFileStack(pFileStack self, pNexusFunction pDriv, char *filename);
+void popFileStack(pFileStack self);
+
+pNexusFunction peekFileOnStack(pFileStack self);
+char *peekFilenameOnStack(pFileStack self);
+void peekIDOnStack(pFileStack self, NXlink *id);
+void setCloseID(pFileStack self, NXlink id);
+ 
+int fileStackDepth(pFileStack self);
+
+#endif
+