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_mutexattr_getpshared(3)

PTHREAD_MU...GETPSHARED(3) Linux Programmer's ManualPTHREAD_MU...GETPSHARED(3)

NAME
       pthread_mutexattr_getpshared,  pthread_mutexattr_setpshared  -  get/set
       process-shared mutex attribute

SYNOPSIS
       #include <pthread.h>

       int pthread_mutexattr_getpshared(const pthread_mutexattr_t *attr,
                                        int *pshared);
       int pthread_mutexattr_setpshared(pthread_mutexattr_t *attr,
                                        int pshared);

       Compile and link with -pthread.

DESCRIPTION
       These functions get and set the process-shared attribute in a mutex at‐
       tributes object.  This attribute must be appropriately  set  to  ensure
       correct,  efficient  operation of a mutex created using this attributes
       object.

       The process-shared attribute can have one of the following values:

       PTHREAD_PROCESS_PRIVATE
              Mutexes created with this attributes object  are  to  be  shared
              only  among threads in the same process that initialized the mu‐
              tex.  This is the default value for the process-shared mutex at‐
              tribute.

       PTHREAD_PROCESS_SHARED
              Mutexes created with this attributes object can  be  shared  be‐
              tween  any threads that have access to the memory containing the
              object, including threads in different processes.

       pthread_mutexattr_getpshared() places the value of  the  process-shared
       attribute of the mutex attributes object referred to by attr in the lo‐
       cation pointed to by pshared.

       pthread_mutexattr_setpshared() sets the value of the process-shared at‐
       tribute of the mutex attributes object referred to by attr to the value
       specified in pshared.

       If  attr  does not refer to an initialized mutex attributes object, the
       behavior is undefined.

RETURN VALUE
       On success, these functions return 0.  On error, they return a positive
       error number.

ERRORS
       pthread_mutexattr_setpshared() can fail with the following errors:

       EINVAL The value specified in pshared is invalid.

       ENOTSUP
              pshared is PTHREAD_PROCESS_SHARED but  the  implementation  does
              not support process-shared mutexes.

CONFORMING TO
       POSIX.1-2001, POSIX.1-2008.

SEE ALSO
       pthread_mutexattr_init(3), pthreads(7)

COLOPHON
       This page is part of release 5.02 of the Linux man-pages project.  A
       description of the project, information about reporting bugs, and the
       latest version of this page, can be found at
       https://www.kernel.org/doc/man-pages/.

Linux                             2017-09-13        PTHREAD_MU...GETPSHARED(3)