Manpage of PTHREAD_ATTR_SETSTACKSIZE

PTHREAD_ATTR_SETSTACKSIZE

Section: Linux Programmer's Manual (3)
Updated: 2015-08-08
Index
 

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 attrto 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 attrin 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 EINVALif stacksizeis 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).
InterfaceAttributeValue
pthread_attr_setstacksize(), pthread_attr_getstacksize() Thread safetyMT-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 stacksizeis 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 stacksizebytes.  

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)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
VERSIONS
ATTRIBUTES
CONFORMING TO
NOTES
BUGS
EXAMPLE
SEE ALSO

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