NAME
pthread_attr_setdetachstate,
pthread_attr_getdetachstate —
set and get detachstate
attribute
SYNOPSIS
#include
<pthread.h>
int
pthread_attr_setdetachstate(pthread_attr_t
*attr, int
detachstate);
int
pthread_attr_getdetachstate(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(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.
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() function
will fail if:
- [
EINVAL] - The value of detachstate was not valid.
These functions will not return an error code of
[EINTR].
SEE ALSO
pthread_attr_init(3), pthread_attr_setguardsize(3), pthread_attr_setstack(3), pthread_attr_setstackaddr(3), pthread_attr_setstacksize(3), pthread_create(3), pthreads(3)
STANDARDS
pthread_attr_setdetachstate() and
pthread_attr_getdetachstate() conform to ISO/IEC
9945-1 ANSI/IEEE (“POSIX”) Std 1003.1 Second Edition
1996-07-12.