PTHREAD_ATTR_SETSTACKSIZE(3)(2020-06-09<)a href="../3/PTHREAD_ATTR_SETSTACKSIZE">PTHREAD_ATTR_SETSTACKSIZE(3)

     NAME
          pthread_attr_setstacksize, pthread_attr_getstacksize -
          set/get stack size attribute in thread attributes object

     SYNOPSIS
          #include <pthread.h>

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

          Compile and link with -pthread.

     DESCRIPTION
          The pthread_attr_setstacksize() function sets the stack size
          attribute of the thread attributes object referred to by
          attr to the value specified in stacksize.

          The stack size attribute determines the minimum size (in
          bytes) that will be allocated for threads created using the
          thread attributes object attr.

          The pthread_attr_getstacksize() function returns the stack
          size attribute of the thread attributes object referred to
          by attr in the buffer pointed to by stacksize.

     RETURN VALUE
          On success, these functions return 0; on error, they return
          a nonzero error number.

     ERRORS
          pthread_attr_setstacksize() can fail with the following
          error:

          EINVAL
               The stack size is less than PTHREAD_STACK_MIN (16384)
               bytes.

          On some systems, pthread_attr_setstacksize() can fail with
          the error EINVAL if stacksize is not a multiple of the sys-
          tem page size.

     VERSIONS
          These functions are provided by glibc since version 2.1.

     ATTRIBUTES
          For an explanation of the terms used in this section, see
          attributes(7).  allbox; lbw28 lb lb l l l.
          Interface Attribute Value T{ pthread_attr_setstacksize(),
          pthread_attr_getstacksize() T}   Thread safety  MT-Safe

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     PTHREAD_ATTR_SETSTACKSIZE(3)(2020-06-09<)a href="../3/PTHREAD_ATTR_SETSTACKSIZE">PTHREAD_ATTR_SETSTACKSIZE(3)

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

     NOTES
          For details on the default stack size of new threads, see
          pthread_create(3).

          A thread's stack size is fixed at the time of thread cre-
          ation.  Only the main thread can dynamically grow its stack.

          The pthread_attr_setstack(3) function allows an application
          to set both the size and location of a caller-allocated
          stack that is to be used by a thread.

     BUGS
          As at glibc 2.8, if the specified stacksize is not a multi-
          ple of STACK_ALIGN (16 bytes on most architectures), it may
          be rounded downward, in violation of POSIX.1, which says
          that the allocated stack will be at least stacksize bytes.

     EXAMPLES
          See pthread_create(3).

     SEE ALSO
          getrlimit(2), pthread_attr_init(3),
          pthread_attr_setguardsize(3), pthread_attr_setstack(3),
          pthread_create(3), pthreads(7)

     COLOPHON
          This page is part of release 5.10 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/.

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