pthread_attr_setstacksize example c c++

NAME

pthread_attr_getstacksize, pthread_attr_setstacksize - get and set the stacksize attribute

SYNOPSIS

[THR TSS]  #include <pthread.h>

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

DESCRIPTION

The pthread_attr_getstacksize() and pthread_attr_setstacksize() functions, respectively, shall get and set the thread creation stacksizeattribute in the attr object.
The stacksize attribute shall define the minimum stack size (in bytes) allocated for the created threads stack.

RETURN VALUE of (pthread_attr_getstacksize, pthread_attr_setstacksize)

Upon successful completion, pthread_attr_getstacksize() and pthread_attr_setstacksize() shall return a value of 0; otherwise, an error number shall be returned to indicate the error.
The pthread_attr_getstacksize() function stores the stacksize attribute value in stacksize if successful.

ERRORS

The pthread_attr_setstacksize() function shall fail if:

[EINVAL]

The value of stacksize is less than {PTHREAD_STACK_MIN} or exceeds a system-imposed limit.

These functions may fail if:

[EINVAL]

The value specified by attr does not refer to an initialized thread attribute object.

These functions shall not return an error code of [EINTR].

Example of (pthread_attr_getstacksize, pthread_attr_setstacksize)



int pthread_attr_setstacksize(pthread_attr_t *tattr, int size);
#include <pthread.h>

pthread_attr_t tattr;
int size;
int ret;

size = (PTHREAD_STACK_MIN + 0x4000);

/* setting a new size */
ret = pthread_attr_setstacksize(&tattr, size);