pthread_attr_getstacksize¶

Synopsis¶

#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);

Status¶

Implemented

Conformance¶

IEEE Std 1003.1-2017

Description¶

The pthread_attr_getstacksize() and pthread_attr_setstacksize() functions, respectively, shall get and set the thread creation stacksize attribute in the attr object.

The stacksize attribute shall define the minimum stack size (in bytes) allocated for the created threads stack. In Phoenix-RTOS the default value of the attribute is PTHREAD_STACK_MIN rounded up to a multiple of the page size. When the stack is allocated by pthread_create(), its size is rounded up to a multiple of the page size.

The behavior is undefined if the value specified by the attr argument to pthread_attr_getstacksize() or pthread_attr_setstacksize() does not refer to an initialized thread attributes object.

Return value¶

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 shall not return an error code of EINTR.

POSIX deviations¶

No POSIX deviations discovered.