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
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 |
CONFORMING TO
POSIX.1-2001, POSIX.1-2008.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).COLOPHON
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