개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

getrbuf(9f)

getrbuf(9F)                    Kernel Functions                    getrbuf(9F)



NAME
       getrbuf - get a raw buffer header

SYNOPSIS
       #include <sys/buf.h>
       #include <sys/kmem.h>
       #include <sys/ddi.h>

       struct buf *getrbuf(int sleepflag);

INTERFACE LEVEL
       Architecture independent level 1 (DDI/DKI).

PARAMETERS
       sleepflag    Indicates whether driver should sleep for free space.


DESCRIPTION
       The  getrbuf()  function allocates the space for a buffer header to the
       caller. It is used in cases where a  block  driver  is  performing  raw
       (character  interface)  I/O and needs to set up a buffer header that is
       not associated with the buffer cache.


       The getrbuf() function calls kmem_alloc(9F) to perform the memory allo‐
       cation.  kmem_alloc()requires the information included in the sleepflag
       argument. If sleepflag is set to KM_SLEEP, the driver may  sleep  until
       the  space  is  freed up. If sleepflag is set to KM_NOSLEEP, the driver
       will not sleep. In either case, a pointer to  the  allocated  space  is
       returned or NULL to indicate that no space was available.

RETURN VALUES
       The  getrbuf()  function  returns  a  pointer  to  the allocated buffer
       header, or NULL if no space is available.

CONTEXT
       The getrbuf() function can be called from user,  interrupt,  or  kernel
       context.  (Drivers  must not allow getrbuf() to sleep if called from an
       interrupt routine.)

SEE ALSO
       bioinit(9F), freerbuf(9F), kmem_alloc(9F), kmem_free(9F)


       Writing Device Drivers in Oracle Solaris 11.4



Oracle Solaris 11.4               16 Jan 2006                      getrbuf(9F)