NAME¶
pthread_attr_setdetachstate, pthread_attr_getdetachstate - set/get detach state
attribute in thread attributes object
SYNOPSIS¶
#include <pthread.h>
int pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate);
int pthread_attr_getdetachstate(const pthread_attr_t *attr, int *detachstate);
Compile and link with -pthread.
DESCRIPTION¶
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.
RETURN VALUE¶
On success, these functions return 0; on error, they return a nonzero error
number.
ERRORS¶
pthread_attr_setdetachstate() can fail with the following error:
- EINVAL
- An invalid value was specified in detachstate.
ATTRIBUTES¶
Multithreading (see pthreads(7))¶
The
pthread_attr_setdetachstate() and
pthread_attr_getdetachstate() functions are thread-safe.
POSIX.1-2001.
NOTES¶
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).
EXAMPLE¶
See
pthread_attr_init(3).
SEE ALSO¶
pthread_attr_init(3),
pthread_create(3),
pthread_detach(3),
pthread_join(3),
pthreads(7)
COLOPHON¶
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description of the project, information about reporting bugs, and the latest
version of this page, can be found at
http://www.kernel.org/doc/man-pages/.