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)
