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PTHREAD_ATTR_SETSTACKSIZE(3)  Linux Programmer's Manual  PTHREAD_ATTR_SETSTACKSIZE(3)

NAME         top

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

SYNOPSIS         top

       #include <pthread.h>

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

       Compile and link with -pthread.

DESCRIPTION         top

       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         top

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

ERRORS         top

       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 system page size.

VERSIONS         top

       These functions are provided by glibc since version 2.1.

CONFORMING TO         top

       POSIX.1-2001.

EXAMPLE         top

       See pthread_create(3).

NOTES         top

       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 creation.  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         top

       As at glibc 2.8, if the specified stacksize is not a multiple of STACK_ALIGN
       (16 bytes on most architectures), it may be rounded downward, in violation of
       POSIX.1-2001, which says that the allocated stack will be at least stacksize
       bytes.

SEE ALSO         top

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

COLOPHON         top

       This page is part of release 3.32 of the Linux man-pages project.  A
       description of the project, and information about reporting bugs, can be found
       at http://www.kernel.org/doc/man-pages/.

Linux                                 2008-11-05         PTHREAD_ATTR_SETSTACKSIZE(3)

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