PROLOG

       This  manual  page  is part of the POSIX Programmer's Manual.  The Linux implementation of
       this interface may differ (consult the corresponding Linux  manual  page  for  details  of
       Linux behavior), or the interface may not be implemented on Linux.

NAME

       pthread_attr_getstacksize, pthread_attr_setstacksize — get and set the stacksize attribute

SYNOPSIS

       #include <pthread.h>

       int pthread_attr_getstacksize(const pthread_attr_t *restrict attr,
           size_t *restrict stacksize);
       int pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize);

DESCRIPTION

       The  pthread_attr_getstacksize()  and pthread_attr_setstacksize() functions, respectively,
       shall get and set the thread creation stacksize attribute in the attr object.

       The stacksize attribute shall define the minimum stack size (in bytes) allocated  for  the
       created threads stack.

       The   behavior   is   undefined   if   the   value  specified  by  the  attr  argument  to
       pthread_attr_getstacksize()  or  pthread_attr_setstacksize()  does   not   refer   to   an
       initialized thread attributes object.

RETURN VALUE

       Upon  successful  completion,  pthread_attr_getstacksize() and pthread_attr_setstacksize()
       shall return a value of 0; otherwise, an error number shall be returned  to  indicate  the
       error.

       The pthread_attr_getstacksize() function stores the stacksize attribute value in stacksize
       if successful.

ERRORS

       The pthread_attr_setstacksize() function shall fail if:

       EINVAL The value of stacksize is less than {PTHREAD_STACK_MIN} or exceeds a system-imposed
              limit.

       These functions shall not return an error code of [EINTR].

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       If   an  implementation  detects  that  the  value  specified  by  the  attr  argument  to
       pthread_attr_getstacksize()  or  pthread_attr_setstacksize()  does   not   refer   to   an
       initialized  thread attributes object, it is recommended that the function should fail and
       report an [EINVAL] error.

FUTURE DIRECTIONS

       None.

SEE ALSO

       pthread_attr_destroy(), pthread_attr_getdetachstate(), pthread_create()

       The Base Definitions volume of POSIX.1‐2017, <limits.h>, <pthread.h>

COPYRIGHT

       Portions of this text are reprinted and  reproduced  in  electronic  form  from  IEEE  Std
       1003.1-2017,  Standard  for  Information Technology -- Portable Operating System Interface
       (POSIX), The Open Group Base Specifications Issue 7, 2018 Edition, Copyright (C)  2018  by
       the  Institute  of  Electrical  and Electronics Engineers, Inc and The Open Group.  In the
       event of any discrepancy between this version and the original IEEE  and  The  Open  Group
       Standard,  the  original  IEEE  and  The  Open Group Standard is the referee document. The
       original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

       Any typographical or formatting errors that appear in this page are most  likely  to  have
       been  introduced  during  the conversion of the source files to man page format. To report
       such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .