Files
threadx/utility/rtos_compatibility_layers/posix/px_mx_attr_getpshared.c
2021-06-02 06:45:05 +00:00

88 lines
5.1 KiB
C

/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** 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_getpshared PORTABLE C */
/* 6.x */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function shall gets the mutex protocol attribute. */
/* The protocol of a mutex is contained in the protocol attribute. */
/* attributes. */
/* */
/* */
/* INPUT */
/* */
/* attr Pointer to the mutex attributes */
/* pshared Pointer to return mutex pshared attr */
/* */
/* OUTPUT */
/* */
/* 0 If successful */
/* Value In case of any error */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* xx-xx-xxxx William E. Lamie Initial Version 6.x */
/* */
/**************************************************************************/
INT pthread_mutexattr_getpshared( pthread_mutexattr_t *attr, INT *pshared)
{
/* 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
{
*pshared = attr->pshared;
return(OK);
}
}