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.

mlockall(3c)

mlockall(3C)             Standard C Library Functions             mlockall(3C)

NAME
       mlockall, munlockall - lock or unlock address space

SYNOPSIS
       #include <sys/mman.h>

       int mlockall(int flags);


       int munlockall(void);

DESCRIPTION
       The  mlockall() function locks in memory all pages mapped by an address
       space.


       The value of flags determines whether the pages to be locked are  those
       currently mapped by the address space, those that will be mapped in the
       future, or both:

                MCL_CURRENT  Lock current mappings
                MCL_FUTURE   Lock future mappings



       If  MCL_FUTURE is specified for mlockall(), mappings are locked as they
       are added to the address space (or replace existing mappings), provided
       sufficient memory is available. Locking in this manner is  not  persis‐
       tent across the exec family of functions (see exec(2)).


       Mappings  locked using mlockall() with any option may be explicitly un‐
       locked with a munlock() call (see mlock(3C)).


       The munlockall() function removes address space locks and locks on map‐
       pings in the address space.


       All conditions and constraints on the use of locked memory  that  apply
       to mlock(3C) also apply to mlockall().


       Locks  established with mlockall() are not inherited by a child process
       after a fork(2) call, and are not nested.


       mlockall() and munlockall() have no effect when applied to shared  mem‐
       ory  segments  created  by shmget_osm(2). To lock and unlock these seg‐
       ments, the MC_LOCK_GRANULE and MC_UNLOCK_GRANULE  interfaces  of  memc‐
       ntl() should be used instead.

RETURN VALUES
       Upon  successful  completion, the mlockall() and munlockall() functions
       return 0. Otherwise, they return −1 and set errno to indicate  the  er‐
       ror.

ERRORS
       The mlockall() and munlockall() functions will fail if:

       EAGAIN    Some  or  all of the memory in the address space could not be
                 locked due to sufficient resources. This error condition  ap‐
                 plies to mlockall() only.


       EINVAL    The flags argument contains values other than MCL_CURRENT and
                 MCL_FUTURE.


       EPERM     The  {PRIV_PROC_LOCK_MEMORY} privilege is not asserted in the
                 effective set of the calling process.


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
       exec(2),  fork(2),  memcntl(2),  mmap(2),  shmget_osm(2),  sysconf(3C),
       mlock(3C), plock(3C), attributes(7), standards(7)

Oracle Solaris 11.4               17 Feb 2015                     mlockall(3C)