*
 * Copyright (c) 1991-1994 The Regents of the University of California.
 * Copyright (c) 1994-1997 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: tclIOUtil.c,v 1.77.2.13 2003/12/17 09:32:35 vasiljevic Exp $
 */

#include "tclInt.h"
#include "tclPort.h"
#ifdef MAC_TCL
#include "tclMacInt.h"
#endif

    int initialized;
    int cwdPathEpoch;
    int filesystemEpoch; 
    Tcl_Obj *cwdPathPtr;
    FilesystemRecord *filesystemList;
} ThreadSpecificData;

static Tcl_ThreadDataKey dataKey;

/* 
 * Declare fallback support function and 
 * information for Tcl_FSLoadFile 
 */
static Tcl_FSUnloadFileProc FSUnloadTempFile;

		 * startup could in principle call this procedure 
		 * simultaneously.  They will therefore each set the
		 * cwdPathPtr independently.  That behaviour is a bit
		 * peculiar, but should be fine.  Once we have a cwd,
		 * we'll always be in the 'else' branch below which
		 * is simpler.
		 */
		FsUpdateCwd(norm);
		Tcl_DecrRefCount(norm);
	    }
	    Tcl_DecrRefCount(retVal);
	}
    } else {
	/* 
	 * We already have a cwd cached, but we want to give the
	 * filesystem it is in a chance to check whether that cwd

			 * which will probably already be shared.  In
			 * this case we can simply free the normalized
			 * path we just calculated.
			 */
			Tcl_DecrRefCount(norm);
		    } else {
			FsUpdateCwd(norm);
			Tcl_DecrRefCount(norm);
		    }
		    Tcl_DecrRefCount(retVal);
		} else {
		    /* The 'cwd' function returned an error; reset the cwd */
		    FsUpdateCwd(NULL);
		}
	    }

    if (Tcl_FSConvertToPathType(interp, pathPtr) != TCL_OK) {
	return NULL;
    }
    srcFsPathPtr = (FsPath*) PATHOBJ(pathPtr);
    if (srcFsPathPtr->translatedPathPtr == NULL) {
	if (PATHFLAGS(pathPtr) != 0) {
	    retObj = Tcl_FSGetNormalizedPath(interp, pathPtr);
	} else {
	    /* 
	     * It is a pure absolute, normalized path object.
	     * This is something like being a 'pure list'.  The
	     * object's string, translatedPath and normalizedPath
	     * are all identical.
	     */
	    retObj = srcFsPathPtr->normPathPtr;
	}
    } else {
	/* It is an ordinary path object */
	retObj = srcFsPathPtr->translatedPathPtr;
    }

    Tcl_IncrRefCount(retObj);
    return retObj;