Linux manual pages Section 3  

Name

pthread_attr_setdetachstate, pthread_attr_getdetachstate — set/get detach state attribute in thread attributes object

Synopsis

        #include <pthread.h>
int pthread_attr_setdetachstate( pthread_attr_t *attr,
  int detachstate);
 
int pthread_attr_getdetachstate( const pthread_attr_t *attr,
  int *detachstate);
 
[Note] Note

Compile and link with −pthread.

DESCRIPTION

The pthread_attr_setdetachstate() function sets the detach state attribute of the thread attributes object referred to by attr to the value specified in detachstate. The detach state attribute determines whether a thread created using the thread attributes object attr will be created in a joinable or a detached state.

The following values may be specified in detachstate:

PTHREAD_CREATE_DETACHED

Threads that are created using attr will be created in a detached state.

PTHREAD_CREATE_JOINABLE

Threads that are created using attr will be created in a joinable state.

The default setting of the detach state attribute in a newly initialized thread attributes object is PTHREAD_CREATE_JOINABLE.

The pthread_attr_getdetachstate() returns the detach state attribute of the thread attributes object attr in the buffer pointed to by detachstate.

RETURN VALUE

On success, these functions return 0; on error, they return a nonzero error number.

ERRORS

pthread_attr_setdetachstate() can fail with the following error:

EINVAL

An invalid value was specified in detachstate.

ATTRIBUTES

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

Interface Attribute Value
pthread_attr_setdetachstate(), pthread_attr_getdetachstate() Thread safety MT-Safe

CONFORMING TO

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

NOTES

See pthread_create(3) for more details on detached and joinable threads.

A thread that is created in a joinable state should eventually either be joined using pthread_join(3) or detached using pthread_detach(3); see pthread_create(3).

It is an error to specify the thread ID of a thread that was created in a detached state in a later call to pthread_detach(3) or pthread_join(3).

EXAMPLE

See pthread_attr_init(3).

SEE ALSO

pthread_attr_init(3), pthread_create(3), pthread_detach(3), pthread_join(3), pthreads(7)

COLOPHON

This page is part of release 4.07 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man−pages/.


  Copyright (c) 2008 Linux Foundation, written by Michael Kerrisk
    <mtk.manpagesgmail.com>

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