PTHREAD_ATTR_SETDETACHSTATOpenBSD Programmer's MPTHREAD_ATTR_SETDETACHSTATE(3)
pthread_attr_setdetachstate, pthread_attr_getdetachstate -
set and get
detachstate attribute
#include <pthread.h>
int
pthread_attr_setdetachstate(pthread_attr_t *attr, int
detachstate);
int
pthread_attr_getdetachstate(pthread_attr_t *attr, int
*detachstate);
The detachstate attribute controls whether the thread is
created in a detached
state. If the thread is created detached, then use
of the ID of
the newly created thread by the pthread_detach(3) or
pthread_join(3)
function is an error.
The pthread_attr_setdetachstate() and
pthread_attr_getdetachstate() functions,
respectively, set and get the detachstate attribute
in the attr
object.
The detachstate can be set to either PTHREAD_CREATE_DETACHED
or
PTHREAD_CREATE_JOINABLE. A value of PTHREAD_CREATE_DETACHED
causes all
threads created with attr to be in the detached state,
whereas using a
value of PTHREAD_CREATE_JOINABLE causes all threads created
with attr to
be in the joinable state. The default value of the
detachstate attribute
is PTHREAD_CREATE_JOINABLE.
Upon successful completion, pthread_attr_setdetachstate()
and
pthread_attr_getdetachstate() return a value of 0. Otherwise, an error
number is returned to indicate the error.
The pthread_attr_getdetachstate() function stores the value
of the
detachstate attribute in detachstate if successful.
The pthread_attr_setdetachstate() function will fail if:
[EINVAL] The value of detachstate was not valid.
These functions will not return an error code of [EINTR].
pthread_attr_init(3), pthread_attr_setstackaddr(3),
pthread_attr_setstacksize(3), pthread_create(3), pthreads(3)
pthread_create() conforms to ISO/IEC 9945-1 ANSI/IEEE
(``POSIX'') Std
1003.1 Second Edition 1996-07-12.
OpenBSD 3.6 January 6, 2000
[ Back ] |