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   pthread_detach    ( 3 )

отделить нить (detach a thread)

Имя (Name)

pthread_detach - detach a thread

Синопсис (Synopsis)

#include <pthread.h>

int pthread_detach(pthread_t thread);

Compile and link with -pthread.


Описание (Description)

The pthread_detach() function marks the thread identified by
       thread as detached.  When a detached thread terminates, its
       resources are automatically 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 behavior.


Возвращаемое значение (Return value)

On success, pthread_detach() returns 0; on error, it returns an
       error number.

Ошибки (Error)

EINVAL thread is not a joinable thread.

ESRCH No thread with the ID thread could be found.


Атрибуты (Attributes)

For an explanation of the terms used in this section, see
       attributes(7).

┌──────────────────────────────────────┬───────────────┬─────────┐ │Interface Attribute Value │ ├──────────────────────────────────────┼───────────────┼─────────┤ │pthread_detach() │ Thread safety │ MT-Safe │ └──────────────────────────────────────┴───────────────┴─────────┘


Стандарты (Conforming to)

POSIX.1-2001, POSIX.1-2008.

Примечание (Note)

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_setdetachstate(3) to set the detached attribute of the attr argument of pthread_create(3).

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 any threads for which one of these actions has not been done will be freed when the process terminates.)


Примеры (Examples)

The following statement detaches the calling thread:

pthread_detach(pthread_self());


Смотри также (See also)

pthread_attr_setdetachstate(3), pthread_cancel(3),
       pthread_create(3), pthread_exit(3), pthread_join(3), pthreads(7)