PTHREAD_ATTR_SETSTACKSIZE
Section: Linux Programmer's Manual (3)
Updated: 2017-09-15
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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 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).
| Interface | Attribute | Value
|
|
pthread_attr_setstacksize(),
pthread_attr_getstacksize()
| 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_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
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.
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 4.13 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/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- VERSIONS
-
- ATTRIBUTES
-
- CONFORMING TO
-
- NOTES
-
- BUGS
-
- EXAMPLE
-
- SEE ALSO
-
- COLOPHON
-
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