pthread_attr_setstacksize, pthread_attr_getstacksize - set/get stack size attribute in thread attributes object
#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.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.
On success, these functions return 0; on error, they return a nonzero error number.
See pthread_create(3).
pthread_attr_setstacksize() can fail with the following error:
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.
These functions are provided by glibc since version 2.1.
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
| pthread_attr_setstacksize(), pthread_attr_getstacksize() | Thread safety | MT-Safe |
POSIX.1-2001, POSIX.1-2008.
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.
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, which says that the allocated stack will be at least
stacksize bytes.
getrlimit(2), pthread_attr_init(3), pthread_attr_setguardsize(3), pthread_attr_setstack(3), pthread_create(3), pthreads(7)
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/.