addinter

new functions interface dynamic link at run time.

Calling Sequence

addinter(files, spname, fcts)

Arguments

files: a character string or a vector of character string contain object files used to define the new Scilab interface routine (interface code, user routines or libraries, system libraries).
spname: a character string. Name of interface routine entry point
fcts: vector of character strings. The name of new Scilab function implemented in the new interface (in fin the order ).

Description

addinter performs dynamic link of a compiled C or Fortran new Scilab interface routine and define corresponding scilab functions.

You can use the command link('show') to get the number of the shared libraries. And to reload a new version of an interface a call to ulink is necessary to get rid of the old version.

See link for more precision on use.

Number of 'addinter' in a scilab session can be limited by the operating system. On Windows, you cannot load more than 80 dynamic libraries at the same time.

Number of functions implemented in a interface is limited to 1000.

Examples

if haveacompiler() then

chdir(TMPDIR);
mkdir('example_addinter');
chdir('example_addinter');

src = ['#include <math.h>'
'#include <api_scilab.h>'
'#include <Scierror.h>'
'#include <localization.h>'
''
'static double fun2(double x);'
''  
'void fun1(double *x,double *y) '
'{'
'  *y=fun2(*x)/(*x); '
'} '
''
'static double fun2(double x)'
'{ '
'  return( sin(x+1));'
'}'
''
'int sci_fun1(char *fname)' 
'{'
'  int iType1 = 0;'
'  SciErr sciErr;'
'  int m1 = 0, n1 = 0;'
'  double *pdVarOne = NULL;'
'  int *piAddressVarOne = NULL;'
''
'  CheckRhs(1,1);'
'  CheckLhs(1,1);'
''
'  sciErr = getVarAddressFromPosition(pvApiCtx, 1, &piAddressVarOne);'
'  if(sciErr.iErr)'
'  {'
' printError(&sciErr, 0);'
' return 0;'
'  }' 
''
'  sciErr = getVarType(pvApiCtx, piAddressVarOne, &iType1);'
'  if(sciErr.iErr)'
'  {'
' printError(&sciErr, 0);'
' return 0;'
'  }'
''
'  if (iType1 != sci_matrix)'
'  {'
'  Scierror(999,_(""%s: Wrong type for input argument #%d: A string expected.\n""), fname, 1);'
'  return 0;'
'  }'
''
'  sciErr = getMatrixOfDouble(pvApiCtx, piAddressVarOne, &m1, &n1, &pdVarOne);'
'  if(sciErr.iErr)'
'  {'
' printError(&sciErr, 0);'
' return 0;'
'  }'
''
'  fun1(pdVarOne, pdVarOne);'
'  LhsVar(1) = 1;'
'  return 0;'
'}'];

mputl(src,TMPDIR + '/example_addinter/example_addinter.c');
files=['example_addinter.c'];
ilib_build('addinter',['fun1_in_scilab','sci_fun1'],files,[]);
disp(mgetl('loader.sce'));
exec loader.sce;
fun1_in_scilab(%pi)

end // if haveacompiler()

Generated loader.sce with addinter

// This file is released under the 3-clause BSD license. See COPYING-BSD.
// Generated by builder.sce : Please, do not edit this file
// ----------------------------------------------------------------------------
//
addinter_path = get_absolute_file_path('loader.sce');
//
// ulink previous function with same name
[bOK, ilib] = c_link('addinter');
if bOK then
  ulink(ilib);
end
//
list_functions = [ 'fun1_in_scilab'];
//
// here we call addinter
addinter(addinter_path + filesep() + 'addinter' + getdynlibext(), 'addinter', list_functions);
// remove temp. variables on stack
clear addinter_path;
clear bOK;
clear ilib;
clear list_functions;
// ----------------------------------------------------------------------------

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