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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | STANDARDS | HISTORY | NOTES | EXAMPLES | SEE ALSO | COLOPHON |
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pthread_detach(3) Library Functions Manual pthread_detach(3)
pthread_detach - detach a thread
POSIX threads library (libpthread, -lpthread)
#include <pthread.h>
int pthread_detach(pthread_t thread);
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.
On success, pthread_detach() returns 0; on error, it returns an
error number.
EINVAL thread is not a joinable thread.
ESRCH No thread with the ID thread could be found.
For an explanation of the terms used in this section, see
attributes(7).
┌─────────────────────────────────────┬───────────────┬─────────┐
│ Interface │ Attribute │ Value │
├─────────────────────────────────────┼───────────────┼─────────┤
│ pthread_detach() │ Thread safety │ MT-Safe │
└─────────────────────────────────────┴───────────────┴─────────┘
POSIX.1-2008.
POSIX.1-2001.
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.)
The following statement detaches the calling thread:
pthread_detach(pthread_self());
pthread_attr_setdetachstate(3), pthread_cancel(3),
pthread_create(3), pthread_exit(3), pthread_join(3), pthreads(7)
This page is part of the man-pages (Linux kernel and C library
user-space interface documentation) project. Information about
the project can be found at
⟨https://www.kernel.org/doc/man-pages/⟩. If you have a bug report
for this manual page, see
⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
This page was obtained from the tarball man-pages-6.9.1.tar.gz
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⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
2024-06-26. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-
to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not
part of the original manual page), send a mail to
man-pages@man7.org
Linux man-pages 6.9.1 2024-05-02 pthread_detach(3)
Pages that refer to this page: pthread_attr_setdetachstate(3), pthread_create(3), pthread_join(3), pthreads(7)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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