ilib_gen_gateway

utility for ilib_build, generates a gateway file.

Calling Sequence

ilib_gen_gateway(name,table)

Arguments

:name a character string, the generic name of the library without path

and extension.

: :table 2 column string matrix giving the table of pairs ‘scilab-

name’ ‘interface name’

:

Description

Utility function used by ilib_build This function generates a gateway file used by addinter.

if WITHOUT_AUTO_PUTLHSVAR variable is defined and equals to %t, PutLhsVar(); will need to manage PutLhsVar in each interface as internal scilab functions.

In another case (default, for compatibility with previous version) , PutLhsVar(); is added in each interface.

You can also see SCI/contrib/toolbox_skeleton/sci_gateway/c/builder_gateway_c.sce (as example about WITHOUT_AUTO_PUTLHSVAR)

Example about WITHOUT_AUTO_PUTLHSVAR = %t

`cd`_ TMPDIR
WITHOUT_AUTO_PUTLHSVAR = %t;
name = 'gw_example1';
table = ['sci_func1', 'func1']
ilib_gen_gateway(name,table)

// generated gateway
`mgetl`_(TMPDIR+'/gw_example1.c')

`int`_ sci_func1(char *fname)
{
  // ... your C code
  // you need to add a explicit PutLhsVar();
  // as internal all gateways of scilab

  PutLhsVar();
  return 0;
}

Example about WITHOUT_AUTO_PUTLHSVAR = %f (default)

`cd`_ TMPDIR
WITHOUT_AUTO_PUTLHSVAR = %f;
name = 'gw_example2';
table = ['sci_func2', 'func2']
ilib_gen_gateway(name,table)

// generated gateway
`mgetl`_(TMPDIR+'/gw_example2.c')

`int`_ sci_func2(char *fname)
{
  // ... your code
  // you do NOT need to add a explicit PutLhsVar();
  // added by scilab after call to sci_func2
  // default mode in scilab 4

  return 0;
}

See Also

• addinter new functions interface dynamic link at run time.
• link dynamic linker
• ilib_build utility for shared library management
• ilib_compile ilib_build utility: executes the Makefile produced by ilib_gen_Make
• ilib_gen_Make utility for ilib_build: produces a Makefile for building shared libraries
• ilib_gen_loader utility for ilib_build: generates a loader file
• ilib_for_link utility for shared library management with link
• api_scilab api_scilab is the Scilab interface to read/write data from/to Scilab memory