RTEMS | IMFS User allocator Plugin Code (!534)

[Bhavya Shah (@bhavyaBeliever)]

Bhavya  Shah commented on a discussion on testsuites/psxtests/psximfs03/init.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/534#note_125736

 > +  if(!freelist) return NULL;
 > +  char *block = freelist;
 > +  freelist = *freelist;
 > +  memset(block, val, size);
 > +  return block;
 > +}
 > +
 > +void deallocator(
 > +  char *blk
 > +)
 > +{
 > +  blk = (char **)blk;
 > +  *blk = freelist;
 > +  freelist = (char *)blk;
 > +
 > +}

This test case will be used to test the plugin code for allocator-deallocator.

I have used the concept of freelist which is a singly linked list. In allocation I am removing the node at head from freelist and while deallocation adding the node at head of freelist

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/534#note_125736
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