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:
PTHREAD_CREATE_DETACHED
Threads that are created using attr will be created in a detached state.
PTHREAD_CREATE_JOINABLE
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.
pthread_attr_setdetachstate() can fail with the following error:
|
EINVAL |
An invalid value was specified in detachstate. |
For an explanation of the terms used in this section, see attributes(7).
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).
See pthread_attr_init(3).
pthread_attr_init(3), pthread_create(3), pthread_detach(3), pthread_join(3), pthreads(7)