SS_OPTION_DISALLOW_CONSTANT_SAMPLE_TIME - Disallow constant sample time inheritance

Note   If the S-function declares the number of sample times as PORT_BASED_SAMPLE_TIMES it will not inherit a constant sample time unless it specifies the SS_OPTION_ALLOW_CONSTANT_PORT_SAMPLE_TIME option.

If the S-function specifies this option and inherits a constant sample time, i.e., a sample time of inf, the Simulink Coder product determines how to generate code for the block based on if the block is invariant.

A block is invariant if all of its ports' signals are invariant. A signal is invariant if it has a constant value during the entire simulation. A constant block sample time does not guarantee all the ports' signals are invariant. See Inline Invariant Signals in the Simulink Coder User's Guide for more information.

If the block is not invariant, the Simulink Coder product generates code only in the model_initialize function. If the block is invariant, the Simulink Coder product eliminates the block's code altogether.