source: trunk/lang/matlab/rpLibGetString.cc @ 3177

Last change on this file since 3177 was 3177, checked in by mmc, 10 years ago

Updated all of the copyright notices to reference the transfer to
the new HUBzero Foundation, LLC.

File size: 1.9 KB
Line 
1/*
2 * ----------------------------------------------------------------------
3 *  INTERFACE: Matlab Rappture Library Source
4 *
5 *    [retStr,err] = rpLibGetString(libHandle,path)
6 *
7 * ======================================================================
8 *  AUTHOR:  Derrick Kearney, Purdue University
9 *  Copyright (c) 2004-2012  HUBzero Foundation, LLC
10 *
11 *  See the file "license.terms" for information on usage and
12 *  redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
13 * ======================================================================
14 */
15
16#include "RpMatlabInterface.h"
17
18/**********************************************************************/
19// METHOD: [retStr,err] = rpLibGetString(libHandle,path)
20/// Query the value of a node.
21/**
22 * Clients use this to query the value of a node.  If the path
23 * is not specified, it returns the value associated with the
24 * root node.  Otherwise, it returns the value for the element
25 * specified by the path. Values are returned as strings.
26 *
27 * Error code, err=0 on success, anything else is failure.
28 */
29
30void mexFunction(int nlhs, mxArray *plhs[],
31                 int nrhs, const mxArray *prhs[])
32{
33    int         libIndex    = 0;
34    int         retLibIndex = 0;
35    int         err         = 1;
36    RpLibrary*  lib         = NULL;
37    std::string path        = "";
38    std::string retStr      = "";
39
40    /* Check for proper number of arguments. */
41    if (nrhs != 2) {
42        mexErrMsgTxt("Two input required.");
43    }
44
45    libIndex = getIntInput(prhs[0]);
46    path = getStringInput(prhs[1]);
47
48    /* Call the C subroutine. */
49    if ( (libIndex > 0) && (!path.empty()) ) {
50        lib = (RpLibrary*) getObject_Void(libIndex);
51
52        if (lib) {
53            retStr = lib->getString(path);
54            err = 0;
55        }
56    }
57
58    /* Set C-style string output_buf to MATLAB mexFunction output*/
59    plhs[0] = mxCreateString(retStr.c_str());
60    plhs[1] = mxCreateDoubleScalar(err);
61
62    return;
63}
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