pthread_attr_setdetachstate (3)
Table of Contents
Name
pthread_attr_setdetachstate, pthread_attr_getdetachstate - set/get detach state attribute in thread attributes objectSynopsis
#include <pthread.h>int pthread_attr_setdetachstate(pthread_attr_t *attrint " detachstate ); int pthread_attr_getdetachstate(const pthread_attr_t *attrint *" detachstate ); 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) .
Examples
See pthread_attr_init(3) .See Also
pthread_attr_init(3) , pthread_create(3) , pthread_detach(3) , pthread_join(3) , pthreads(7)Colophon
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Calculé le 23 janvier 2021 à 00h21minpar DidacSPIPSorbonne Université
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