RTOS Resource Management

Opposite to earlier versions of Frameworks by Willert Software Tools, the latest Frameworks are build inside an external build environment like Eclipse or your own make file(s) and no longer inside Rhapsody. As a result, you no longer can set properties in the Rhapsody model to specify various RTOS details. Instead, you must use the mechanisms offered by your RTOS supplier.

The RXF used in Linux requires you to use proper include paths to the RXF; please refer to the property WSTLinuxPathToRXF which contents is used in include options in a generated Makefile for your application.

For Linux, you'll need to verify and/or modify the RTOS Bridge sources WSTRTOS.h and WSTRTOS.c - it is unlikely that you'll need to reconfigure your Linux kernel itself.

The file WSTRTOS.h is used to specify details for the Linux Bridge which are needed by the RTOS bridge interface. You can modify the constants:

RTOS_PRIORITY_NORMAL. This priority is used for any task, created on behalf of your active class(es).
RTOS_PRIORITY_ABOVE_NORMAL. This priority is defined a little higher than RTOS_PRIORITY_NORMAL and can be used for tasks that need to be higher prioritized. It is not assigned to any tasks of the RXF or the user model automatically.
RTOS_PRIORITY_HIGH. This priority is used for the Bridge task, when in real-time model.
RTOS_PRIORITY_LOW. This priority is used for the Bridge task, when in simulated-time model.
RTOS_DEFAULT_STACK. This is the default stack size for any task, created on behalf of your active class(es).
RTOS_MQ_DEFAULT_SIZE . This is maximum number of queued events within your application.
RTOS_MAIN_STK_SIZE. This is the stack size for the Main task.
RIC_RAW_MEMORY_ALIGNMENT. This constant is used in RXF macros which deal with memory allocation for classes etc. and its value depends on your target. The default value is 16.

The file WSTRTOS.c is used to specify details for the Linux Bridge but we do not expect you to change its implementation. The only topic worth mentioning is that the constant OM_POSIX_THREAD_SUSPEND_RESUME_SUPPORT is used to add two signal catchers; one for SIGUSR1 and one for SIGUSR2.

NOTES

if you modify the source file WSTRTOS.c, you must rebuild your application, see GettingStarted example
if you modify the include file WSTRTOS.h, you must rebuild your RXF libraries and rebuild your appliaction.