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/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
* Copyright (c) 2026-present Eclipse ThreadX contributors
*
* This program and the accompanying materials are made available under the
* terms of the MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** POSIX wrapper for THREADX */
/** */
/** */
/** */
/**************************************************************************/
/**************************************************************************/
/* Include necessary system files. */
#include "tx_api.h" /* Threadx API */
#include "pthread.h" /* Posix API */
#include "px_int.h" /* Posix helper functions */
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* pthread_setcancelstate PORTABLE C */
/* 6.1.7 */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* The pthread_setcancelstate()function shall atomically both set the */
/* calling thread�s cancelability state to the indicated state and */
/* return the previous cancelability state at the location referenced */
/* by oldstate.Legal values for state are PTHREAD_CANCEL_ENABLE and */
/* PTHREAD_CANCEL_DISABLE. */
/* */
/* INPUT */
/* */
/* state New cancelability state to be set */
/* oldstate Pointer to old cancelability state */
/* */
/* OUTPUT */
/* */
/* 0 if successful */
/* Value in case of any error */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/**************************************************************************/
INT pthread_setcancelstate (INT state, INT *oldstate)
{
TX_INTERRUPT_SAVE_AREA
TX_THREAD *thread_ptr;
POSIX_TCB *pthread_ptr;
/* First check for validity of the new cancel state to be set */
if ( (state == PTHREAD_CANCEL_ENABLE) || (state == PTHREAD_CANCEL_DISABLE) )
{
TX_DISABLE
/* Get the thread identifier of the currently running thread */
thread_ptr = tx_thread_identify();
/* get posix TCB for this pthread */
pthread_ptr = (POSIX_TCB *)thread_ptr;
*oldstate = pthread_ptr->cancel_state;
pthread_ptr->cancel_state = state;
TX_RESTORE
return(OK);
}
else
{
posix_errno = EINVAL;
posix_set_pthread_errno(EINVAL);
return (EINVAL);
}
}
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