Is it possible to configure whether an S-function supports multiple execution instances using the Legacy Code Tool in Simulink 7.6 (R2010b)?

In C-MEX S-functions, it is possible to include a call to the 'ssSupportsMultipleExecInstances' function. This function allows you to set a flag to true or false indicating whether or not that S-function supports multiple execution instances. This determines whether a 'For Each' Subsystem block will support that S-function operating inside the subsystem.

When the S-function source file is generated using the Legacy Code Tool, I need to manually go into the generated C file and add in the call to 'ssSupportsMultipleExecInstances'. I was wondering if there is a way for Legacy Code Tool to do this automatically.

Answer 1

[MathWorks Support Team]

This change has been incorporated into the documentation in Release 2012a (R2012a). For previous releases, read below for any additional information:

Documentation on this feature is missing from the Simulink 7.6 (R2010b) documentation for the legacy code tool.

Here is additional information on this feature:

To configure whether an S-function supports multiple execution instances using the Legacy Code Tool, call the tool using the following syntax:

>> def = legacy_code('initialize')

>> def.Options.supportsMultipleExecInstances=true

'supportsMultipleExecInstances ' is an additional field for the Options structure that is used to define options for the generated S-function.