PTHREAD_DETACH(3) Linux Programmer's Manual PTHREAD_DETACH(3)NAMEpthread_detach - detach a thread
int pthread_detach(pthread_t thread);
Compile and link with -pthread.
The pthread_detach() function marks the thread identified by thread as
detached. When a detached thread terminates, its resources are auto‐
matically released back to the system without the need for another
thread to join with the terminated thread.
Attempting to detach an already detached thread results in unspecified
On success, pthread_detach() returns 0; on error, it returns an error
EINVAL thread is not a joinable thread.
ESRCH No thread with the ID thread could be found.
Once a thread has been detached, it can't be joined with
pthread_join(3) or be made joinable again.
A new thread can be created in a detached state using pthread_attr_set‐
detachstate(3) to set the detached attribute of the attr argument of
The detached attribute merely determines the behavior of the system
when the thread terminates; it does not prevent the thread from being
terminated if the process terminates using exit(3) (or equivalently, if
the main thread returns).
Either pthread_join(3) or pthread_detach() should be called for each
thread that an application creates, so that system resources for the
thread can be released. (But note that the resources of all threads
are freed when the process terminates.)
The following statement detaches the calling thread:
SEE ALSOpthread_attr_setdetachstate(3), pthread_cancel(3), pthread_create(3),
pthread_exit(3), pthread_join(3), pthreads(7)COLOPHON
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Linux 2008-11-27 PTHREAD_DETACH(3)