pthread_attr_setdetachstate, pthread_attr_getdetachstate - set/get detach state attribute in thread attributes object
POSIX threads library (libpthread
, -lpthread
)
#include <pthread.h>
int pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate);
int pthread_attr_getdetachstate(const pthread_attr_t *attr,
int *detachstate);
The pthread_attr_setdetachstate() function sets the
detach state attribute of the thread attributes object referred to by
attr
to the value specified in detachstate
. The detach
state attribute determines whether a thread created using the thread
attributes object attr
will be created in a joinable or a
detached state.
The following values may be specified in detachstate
:
Threads that are created using attr
will be created in a
detached state.
Threads that are created using attr
will be created in a
joinable state.
The default setting of the detach state attribute in a newly initialized thread attributes object is PTHREAD_CREATE_JOINABLE.
The pthread_attr_getdetachstate() returns the detach
state attribute of the thread attributes object attr
in the
buffer pointed to by detachstate
.
On success, these functions return 0; on error, they return a nonzero error number.
See pthread_attr_init(3).
pthread_attr_setdetachstate() can fail with the following error:
An invalid value was specified in detachstate
.
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value |
pthread_attr_setdetachstate(), pthread_attr_getdetachstate() |
Thread safety | MT-Safe |
POSIX.1-2008.
POSIX.1-2001.
See pthread_create(3) for more details on detached and joinable threads.
A thread that is created in a joinable state should eventually either be joined using pthread_join(3) or detached using pthread_detach(3); see pthread_create(3).
It is an error to specify the thread ID of a thread that was created in a detached state in a later call to pthread_detach(3) or pthread_join(3).
pthread_attr_init(3), pthread_create(3), pthread_detach(3), pthread_join(3), pthreads(7)