PTHREAD_ATTR_GETDETACHSTATE(3C) Standard C Library Functions

NAME

pthread_attr_getdetachstate, pthread_attr_setdetachstate - get or set
detachstate attribute

SYNOPSIS

cc -mt [ flag... ] file... -lpthread [ library... ]
#include <pthread.h>

int pthread_attr_setdetachstate(pthread_attr_t *attr,
int detachstate);


int pthread_attr_getdetachstate(const pthread_attr_t *attr,
int *detachstate);

DESCRIPTION

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() or pthread_join()
function is an error.


The pthread_attr_setdetachstate() and pthread_attr_getdetachstate(),
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.

RETURN VALUES

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.

ERRORS

The pthread_attr_setdetachstate() or pthread_attr_getdetachstate()
functions may fail if:

EINVAL
attr or detachstate is invalid.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Standard |
+--------------------+-----------------+
|MT-Level | MT-Safe |
+--------------------+-----------------+

SEE ALSO

pthread_attr_init(3C), pthread_attr_setstackaddr(3C),
pthread_attr_setstacksize(3C), pthread_create(3C), attributes(7),
standards(7)

March 23, 2005 PTHREAD_ATTR_GETDETACHSTATE(3C)