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.

posix_fadvise(3c)

posix_fadvise(3C)        Standard C Library Functions        posix_fadvise(3C)

NAME
       posix_fadvise - file advisory information

SYNOPSIS
       #include <fcntl.h>

       int posix_fadvise(int fd, off_t offset, off_t len, int advice);

DESCRIPTION
       The  posix_fadvise() function advises the system on the expected behav‐
       ior of the application with respect to the data in the file  associated
       with  the  open  file descriptor, fd, starting at offset and continuing
       for len bytes. The specified range need  not  currently  exist  in  the
       file.  If len is zero, all data following offset is specified. The sys‐
       tem may use this information to  optimize  handling  of  the  specified
       data.  The  posix_fadvise()  function has no effect on the semantics of
       other operations on the specified data, although it may affect the per‐
       formance of other operations.


       The advice to be applied to the data is specified by the advice parame‐
       ter and may be one of the following values:

       POSIX_FADV_NORMAL        Specifies that the application has  no  advice
                                to  give  on  its behavior with respect to the
                                specified data. It is the default characteris‐
                                tic if no advice is given for an open file.


       POSIX_FADV_SEQUENTIAL    Specifies that the application expects to  ac‐
                                cess  the  specified  data  sequentially  from
                                lower offsets to higher offsets.


       POSIX_FADV_RANDOM        Specifies that the application expects to  ac‐
                                cess the specified data in a random order.


       POSIX_FADV_WILLNEED      Specifies  that the application expects to ac‐
                                cess the specified data in the near future.


       POSIX_FADV_DONTNEED      Specifies that the application expects that it
                                will not access the specified data in the near
                                future.


       POSIX_FADV_NOREUSE       Specifies that the application expects to  ac‐
                                cess  the  specified  data  once  and then not
                                reuse it thereafter.



       These values are defined in <fcntl.h>

RETURN VALUES
       Upon successful completion, posix_fadvise() returns zero. Otherwise, an
       error number is returned to indicate the error.

ERRORS
       The posix_fadvise() function will fail if:

       EBADF     The fd argument is not a valid file descriptor.


       EINVAL    The value of advice is invalid, or the value of len  is  less
                 than zero.


       ESPIPE    The fd argument is associated with a pipe or FIFO.


USAGE
       The  posix_fadvise()  function  has a transitional interface for 64-bit
       file offsets. See lf64(7).

ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:

       tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE  TYPEAT‐
       TRIBUTE  VALUE _ Interface StabilityCommitted _ MT-LevelMT-Safe _ Stan‐
       dardSee standards(7).


SEE ALSO
       posix_madvise(3C), attributes(7), standards(7)

Oracle Solaris 11.4               14 Jul 2008                posix_fadvise(3C)