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/**
* @file
*
* @brief Setting Cancelability State
* @ingroup POSIXAPI
*/
/*
* COPYRIGHT (c) 1989-2009.
* On-Line Applications Research Corporation (OAR).
*
* Copyright (c) 2016 embedded brains GmbH.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <pthread.h>
#include <errno.h>
#include <rtems/score/isr.h>
#include <rtems/score/threadimpl.h>
/*
* 18.2.2 Setting Cancelability State, P1003.1c/Draft 10, p. 183
*/
int pthread_setcancelstate(
int state,
int *oldstate
)
{
Thread_Life_state new_life_protection;
Thread_Life_state previous_life_state;
if ( _ISR_Is_in_progress() ) {
return EPROTO;
}
if ( state == PTHREAD_CANCEL_DISABLE ) {
new_life_protection = THREAD_LIFE_PROTECTED;
} else if ( state == PTHREAD_CANCEL_ENABLE ) {
new_life_protection = 0;
} else {
return EINVAL;
}
previous_life_state = _Thread_Set_life_protection( new_life_protection );
if ( oldstate != NULL ) {
if ( ( previous_life_state & THREAD_LIFE_PROTECTED ) != 0 ) {
*oldstate = PTHREAD_CANCEL_DISABLE;
} else {
*oldstate = PTHREAD_CANCEL_ENABLE;
}
}
return 0;
}
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