/*

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.nexusformat.org>

Added functions to deal with the path stack for NXgetpath

Mark Koennecke, October 2009

*/

#ifndef NEXUSFILESTACK

#define NEXUSFILESTACK

typedef struct __fileStack *pFileStack;

#define MAXEXTERNALDEPTH 16

pFileStack makeFileStack();

void killFileStack(pFileStack self);

int getFileStackSize();

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);

void pushPath(pFileStack self, const char *name);

void popPath(pFileStack self);

int buildPath(pFileStack self, char *path, int pathlen);

#endif