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pthread_attr_getdetachstate, pthread_attr_setdetachstate: získat a nastavit atribut detachstate

Originální popis anglicky: pthread_attr_getdetachstate, pthread_attr_setdetachstate - get and set the detachstate attribute

Návod, kniha: POSIX Programmer's Manual

STRUČNĚ

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

POPIS / INSTRUKCE

The detachstate attribute controls whether the thread is created in a detached state. If the thread is created detached, then use of the ID of the newly created thread by the pthread_detach() or pthread_join() function is an error.
The pthread_attr_getdetachstate() and pthread_attr_setdetachstate() functions, respectively, shall get and set the detachstate attribute in the attr object.
For pthread_attr_getdetachstate(), detachstate shall be set to either PTHREAD_CREATE_DETACHED or PTHREAD_CREATE_JOINABLE.
For pthread_attr_setdetachstate(), the application shall set detachstate to either PTHREAD_CREATE_DETACHED or PTHREAD_CREATE_JOINABLE.
A value of PTHREAD_CREATE_DETACHED shall cause all threads created with attr to be in the detached state, whereas using a value of PTHREAD_CREATE_JOINABLE shall cause all threads created with attr to be in the joinable state. The default value of the detachstate attribute shall be PTHREAD_CREATE_JOINABLE.

NÁVRATOVÁ HODNOTA

Upon successful completion, pthread_attr_getdetachstate() and pthread_attr_setdetachstate() shall return a value of 0; otherwise, an error number shall be returned to indicate the error.
The pthread_attr_getdetachstate() function stores the value of the detachstate attribute in detachstate if successful.

CHYBY / ERRORY

The pthread_attr_setdetachstate() function shall fail if:
EINVAL
The value of detachstate was not valid
 
These functions shall not return an error code of [EINTR].
The following sections are informative.

PŘÍKLADY POUŽITÍ

None.

APPLICATION USAGE

None.

RATIONALE

None.

FUTURE DIRECTIONS

None.

SOUVISEJÍCÍ

pthread_attr_destroy() , pthread_attr_getstackaddr() , pthread_attr_getstacksize() , pthread_create() , the Base Definitions volume of IEEE Std 1003.1-2001, <pthread.h> Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .
2003 IEEE/The Open Group
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