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getnewbuf(9r)


NAME

  getnewbuf - General: Allocates a buf structure


SYNOPSIS

  struct buf * getnewbuf(
	  void );


ARGUMENTS

  None


DESCRIPTION

  The getnewbuf routine allocates a buf structure for performing I/O
  operations. This routine guarantees that the members of the structure are
  properly initialized prior to initiating the I/O request. Device drivers
  call this routine prior to calling  physio, which performs the I/O
  operation.


RETURN VALUES

  Upon successful completion, getnewbuf returns a pointer to the allocated
  buf structure.  On failure, it returns a NULL pointer.

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