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.

plock(3c)

Standard C Library Functions                                         plock(3C)



NAME
       plock - lock or unlock into memory process, text, or data

SYNOPSIS
       #include <sys/lock.h>

       int plock(int op);

DESCRIPTION
       The  plock() function allows the calling process to lock or unlock into
       memory its text segment (text lock), its data segment (data  lock),  or
       both  its  text  and  data segments (process lock). Locked segments are
       immune to all routine swapping. The  {PRIV_PROC_LOCK_MEMORY}  privilege
       must  be  asserted  in  the effective set of the calling process to use
       this call.


       The plock() function performs the function specified by op:

       PROCLOCK    Lock text and data segments into memory (process lock).


       TXTLOCK     Lock text segment into memory (text lock).


       DATLOCK     Lock data segment into memory (data lock).


       UNLOCK      Remove locks.


RETURN VALUES
       Upon successful completion, 0 is returned. Otherwise,  −1  is  returned
       and errno is set to indicate the error.

ERRORS
       The plock() function fails and does not perform the requested operation
       if:

       EAGAIN    Not enough memory.


       EINVAL    The op argument is equal to PROCLOCK and a  process  lock,  a
                 text  lock,  or  a  data  lock  already exists on the calling
                 process; the op argument is equal to TXTLOCK and a text  lock
                 or  a process lock already exists on the calling process; the
                 op argument is equal to DATLOCK and a data lock or a  process
                 lock  already  exists on the calling process; or the op argu‐
                 ment is equal to UNLOCK and no lock  exists  on  the  calling
                 process.


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


USAGE
       The mlock(3C) and mlockall(3C) functions are the  preferred  interfaces
       for process locking.

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 _ MT-LevelMT-Safe


SEE ALSO
       exec(2),  exit(2),  fork(2),   memcntl(2),   mlock(3C),   mlockall(3C),
       attributes(7), privileges(7)



Oracle Solaris 11.4               3 Nov 2021                         plock(3C)