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pthread_detach

NAME

pthread_detach - put a running thread in the detached state

SYNOPSIS

#include <pthread.h>

int pthread_detach(pthread_t th);

DESCRIPTION

!pthread_detach! put the thread |th| in the detached state. This guarantees that the memory resources consumed by |th| will be freed immediately when |th| terminates. However, this prevents other threads from synchronizing on the termination of |th| using !pthread_join!.

A thread can be created initially in the detached state, using the !detachstate! attribute to !pthread_create!(3). In contrast, !pthread_detach! applies to threads created in the joinable state, and which need to be put in the detached state later.

After !pthread_detach! completes, subsequent attempts to perform !pthread_join! on |th| will fail. If another thread is already joining the thread |th| at the time !pthread_detach! is called, !pthread_detach! does nothing and leaves |th| in the joinable state.

RETURN VALUE

On success, 0 is returned. On error, a non-zero error code is returned.

ERRORS

!ESRCH!

No thread could be found corresponding to that specified by |th|

!EINVAL!

the thread |th| is already in the detached state

AUTHOR

Xavier Leroy <Xavier.Leroy@inria.fr>

SEE ALSO

!pthread_create!(3), !pthread_join!(3), !pthread_attr_setdetachstate!(3).