Manual Pages for UNIX Operating System command usage for man biofini

Kernel Functions for Drivers                          biofini(9F)



NAME
     biofini - uninitialize a buffer structure

SYNOPSIS
     #include 
     #include 

     void biofini(struct buf *bp);


INTERFACE LEVEL
     Solaris DDI specific (Solaris DDI).

PARAMETERS
     bp    Pointer to the buffer header structure.


DESCRIPTION
     The biofini() function uninitializes a buf(9S) structure. If
     a  buffer structure has been allocated and initialized using
     kmem_alloc(9F) and bioinit(9F) it needs to be  uninitialized
     using  biofini()  before  calling  kmem_free(9F).  It is not
     necessary to call biofini() before freeing a  buffer  struc-
     ture   using   freerbuf(9F)  because  freerbuf()  will  call
     biofini() directly.

CONTEXT
     The biofini() function can be called from any context.

EXAMPLES
     Example 1 Using biofini()

       struct buf *bp = kmem_alloc(biosize(), KM_SLEEP);
       bioinit(bp);
       /* use buffer */
       biofini(bp);
       kmem_free(bp, biosize());


SEE ALSO
     bioinit(9F),   bioreset(9F),   biosize(9F),    freerbuf(9F),
     kmem_alloc(9F), kmem_free(9F), buf(9S)


     Writing Device Drivers










SunOS 5.11          Last change: 20 Nov 1996                    1