OS Abstractor

Find quick answers to your questions about OS Abstractor product

• If target OS is uITRON and it has Windows compatible file system and TCP/IP which support BSD Socket, can the developer use socket functions such as socket, accept, listen., etc by calling native OS system call?

  OS Abstractor API’s does not provide socket APIs, so the target OS needs to supply them. We have developed a BSD compliance wrapper for many netstacks on a custom solution basis if needed....

• What do I do if I get OS_ERR_RESOURCE error code when creating the OS Abstractor resources?

  This error code indicates that the application is exceeding the max-allowed resources (see section Resource Configuration) and there are no free resource control blocks. To prevent this error from occ...

• What do I do if I get OS_ERR_NOT_OWNER error code when using any OS Abstractor resources?

  This error code indicates that the resource was created with a Process scope and only the process, which created this resource, can use it. If you need the resource to be shared across processes, then...

• I see some functions inside the OS Abstractor library that starts with “INT_”. Can we also use these functions in our applications?

  The functions starting with “INT_” are functions internal to the OS Abstractor, In order to keep the application portable, application should not use those functions (use only the functions that are e...

• Is all access to a memory pool serialized among all threads (tasks)? Does each thread lock the memory pool when allocating or deallocating from that memory pool?

  The memory allocation is FIFO based across all OS. There are two types of memory allocation to be discussed: Fixed Memory Allocation: OS Abstractor does NOT synchronize the alloc/de-alloc request. Nei...

• What happens if a memory pool is deleted while there are still open handles to that memory pool? Or what happens to the memory behind the pointers that are still held?

  All the resources including memory allocation gets automatically freed up when the process gets deleted. Also, all memory gets freed up when the pool goes away. If applications still use the memory po...

• Does the application have direct access to OS Abstractor control blocks?

  Applications will not have direct access to the control blocks if the option OS_INCLUDE_PROCESS is set to true. However, the application could corrupt the control block if the underlying OS/hardware d...

• Does OS Abstractor dynamically allocate memory at run-time?

  OS Abstractor library allocates memory for all the control blocks, application memory pools and such either statically or during initialization. This is done to ensure that OS Abstractor provides a st...

• Can I set up a memory pool at a specific physical address and share it across multiple process and processors?

  Contact MapuSoft for appropriate advice for your target environment....

• What are the important design goals of OS Abstractor?

  Portability and Performance are key factors, which go hand in hand. Next is the API simplicity and development flexibility. The APIs are designed in such a way that they can be extended easily with ne...