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threadx/utility/rtos_compatibility_layers/posix/px_mx_attr_setprotocol.c
Bo Chen (from Dev Box) 8276bcf711 Update copyright.
2024-01-29 13:51:15 +08:00

96 lines
5.0 KiB
C

/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
*
* 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_mutexattr_setprotocol PORTABLE C */
/* 6.1.7 */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function shall sets the mutex protocol attribute. */
/* The protocol of a mutex is contained in the protocol attribute of */
/* the mutex attributes */
/* */
/* */
/* INPUT */
/* */
/* attr Pointer to the mutex attributes */
/* protocol mutex protocol */
/* */
/* OUTPUT */
/* */
/* 0 If successful */
/* Value In case of any error */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 06-02-2021 William E. Lamie Initial Version 6.1.7 */
/* */
/**************************************************************************/
INT pthread_mutexattr_setprotocol(pthread_mutexattr_t *attr, INT protocol)
{
/* First check the attribute object is already destroyed? */
if (attr->in_use == TX_FALSE)
{
posix_errno = EINVAL;
posix_set_pthread_errno(EINVAL);
return(EINVAL);
}
else
{
if (protocol == PTHREAD_PRIO_INHERIT )
{
attr->protocol = protocol;
return(OK);
}
else
{
posix_errno = ENOSYS;
posix_set_pthread_errno(ENOSYS);
return(ENOSYS);
}
}
}