NAME
pthread_attr_getdetachstate, pthread_attr_setdetachstate - get and set
the detachstate attribute
SYNOPSIS
#include <pthread.h>
int pthread_attr_getdetachstate(const pthread_attr_t *attr,
int *detachstate);
int pthread_attr_setdetachstate(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_getdetachstate() and pthread_attr_setdetachstate()
functions, respectively, shall get and set the detachstate attribute in
the attr object.
For pthread_attr_getdetachstate(), detachstate shall be set to either
PTHREAD_CREATE_DETACHED or PTHREAD_CREATE_JOINABLE.
For pthread_attr_setdetachstate(), the application shall set
detachstate to either PTHREAD_CREATE_DETACHED or
PTHREAD_CREATE_JOINABLE.
A value of PTHREAD_CREATE_DETACHED shall cause all threads created with
attr to be in the detached state, whereas using a value of
PTHREAD_CREATE_JOINABLE shall cause all threads created with attr to be
in the joinable state. The default value of the detachstate attribute
shall be PTHREAD_CREATE_JOINABLE.
RETURN VALUE
Upon successful completion, pthread_attr_getdetachstate() and
pthread_attr_setdetachstate() shall return a value of 0; otherwise, an
error number shall be 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() function shall fail if:
EINVAL The value of detachstate was not valid
These functions shall not return an error code of [EINTR].
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
pthread_attr_destroy() , pthread_attr_getstackaddr() ,
pthread_attr_getstacksize() , pthread_create() , the Base Definitions
volume of IEEE Std 1003.1-2001, <pthread.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online
at http://www.opengroup.org/unix/online.html .