| PTHREAD_ATTR(3) | Library Functions Manual | PTHREAD_ATTR(3) | 
pthread_attr_init,
  pthread_attr_destroy —
#include <pthread.h>
int
  
  pthread_attr_init(pthread_attr_t
    *attr);
int
  
  pthread_attr_destroy(pthread_attr_t
    *attr);
pthread_create(). One attribute object can be used in
  multiple calls to pthread_create(), with or without
  modifications between the calls. The pthread_attr_t type
  is an opaque representation of the thread attributes; any access to the object
  other than via the described pthread_attr_*()
  functions may result in undefined behavior.
The pthread_attr_init() function
    initializes attr with the default thread attributes
    used in the implementation. Depending on the implementation, undefined
    behavior may follow if an uninitialized thread attribute object is used with
    some of the thread attribute functions. It is therefore a good practice to
    always use pthread_attr_init(), even if this might
    be unnecessary. Undefined behavior may also follow if an already initialized
    attr is used with
    pthread_attr_init().
When the attribute object is no longer needed, it should be
    destroyed by using pthread_attr_destroy(). The
    function has no effect on threads that were created by using a given
    attribute object. A destroyed attr can be
    reinitialized using pthread_attr_init(), but all
    other actions with the destroyed object are unspecified.
The following standard thread attribute functions are available:
| Function | Description | 
| pthread_attr_getdetachstate(3) | thread detach state | 
| pthread_attr_getguardsize(3) | thread guard size | 
| pthread_attr_getinheritsched(3) | inherit scheduler attribute | 
| pthread_attr_getschedparam(3) | thread scheduling parameter | 
| pthread_attr_getschedpolicy(3) | thread scheduling policy | 
| pthread_attr_getscope(3) | thread contention scope | 
| pthread_attr_getstack(3) | thread stack | 
| pthread_attr_getstacksize(3) | thread stack size | 
| pthread_attr_getstackaddr(3) | thread stack address | 
Each listed pthread_attr_get*() function
    has a pthread_attr_set*() counterpart. In addition,
    the following NetBSD specific extensions are
    available:
| Function | Description | 
| pthread_attr_get_np(3) | attributes of a running thread | 
| pthread_attr_getname_np(3) | descriptive name of an attribute | 
pthread_attr_init() and
  pthread_attr_destroy().
pthread_attr_init() and
  pthread_attr_destroy() conform to
  IEEE Std 1003.1-2001 (“POSIX.1”).
| July 9, 2010 | NetBSD 10.0 |