co_error co_signal_post(co_signal signal, int32 value);
This function posts a message (a 32-bit value) on a signal. This function must be called from within a process run function.
The arguments for co_signal_post are as follows:
Returns co_err_none on success or co_err_unknown if there was an error during desktop simulation.
The co_signal_post function is nonblocking and overwrites any message that is already pending on the signal.