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.

pthread_once(3c)

Standard C Library Functions                                  pthread_once(3C)



NAME
       pthread_once - initialize dynamic package

SYNOPSIS
       #include <pthread.h>
       pthread_once_t once_control = PTHREAD_ONCE_INIT;

       int pthread_once(pthread_once_t *once_control,
            void (*init_routine)(void));

DESCRIPTION
       If  any  thread in a process with a once_control parameter makes a call
       to pthread_once(), the first call will summon the  init_routine(),  but
       subsequent  calls  will  not.  The  once_control  parameter  determines
       whether the associated initialization  routine  has  been  called.  The
       init_routine() is complete upon return of pthread_once().


       pthread_once()  is  not  a cancellation point; however, if the function
       init_routine() is a cancellation point and is canceled, the  effect  on
       once_control is the same as if pthread_once() had never been called.


       The constant PTHREAD_ONCE_INIT is defined in the <pthread.h> header.


       If once_control has automatic storage duration or is not initialized by
       PTHREAD_ONCE_INIT, the behavior of pthread_once() is undefined.

RETURN VALUES
       Upon successful completion, pthread_once()  returns  0.  Otherwise,  an
       error number is returned to indicate the error.

ERRORS
       EINVAL    once_control or init_routine is NULL.


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
       call_once(3C), attributes(7), standards(7)

NOTES
       Solaris threads do not offer this functionality.



Oracle Solaris 11.4               21 Nov 2014                 pthread_once(3C)