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pthread_attr_setstacksize(3)
Linux Programmer's Manual 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 speci‐
fied 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 system 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
CONFORMING TO
POSIX.1-2001, POSIX.1-2008.
NOTES
For details on the default stack size of new threads, see pthread_cre‐
ate(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
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 down‐
ward, in violation of POSIX.1, which says that the allocated stack will
be at least stacksize bytes.
EXAMPLE
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 5.02 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 2017-09-15
PTHREAD_ATTR_SETSTACKSIZE(3)