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common_modules/module_manager/src/txm_module_manager_maximum_module_priority_set.c
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/**************************************************************************/
/* */
/* 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. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** ThreadX Component */
/** */
/** Module Manager */
/** */
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
#include "tx_api.h"
#include "tx_mutex.h"
#include "txm_module.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _txm_module_manager_maximum_module_priority_set PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function sets the maximum thread priority allowed in a module. */
/* */
/* INPUT */
/* */
/* module_instance Module instance pointer */
/* priority Maximum thread priority */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* _tx_mutex_get Get protection mutex */
/* _tx_mutex_put Release protection mutex */
/* */
/* CALLED BY */
/* */
/* Application code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 09-30-2020 Scott Larson Initial Version 6.1 */
/* */
/**************************************************************************/
UINT _txm_module_manager_maximum_module_priority_set(TXM_MODULE_INSTANCE *module_instance, UINT priority)
{
/* Determine if the module manager has not been initialized yet. */
if (_txm_module_manager_ready != TX_TRUE)
{
/* Module manager has not been initialized. */
return(TX_NOT_AVAILABLE);
}
/* Determine if the module is valid. */
if (module_instance == TX_NULL)
{
/* Invalid module pointer. */
return(TX_PTR_ERROR);
}
/* Get module manager protection mutex. */
_tx_mutex_get(&_txm_module_manager_mutex, TX_WAIT_FOREVER);
/* Determine if the module instance is valid. */
if (module_instance -> txm_module_instance_id != TXM_MODULE_ID)
{
/* Release the protection mutex. */
_tx_mutex_put(&_txm_module_manager_mutex);
/* Invalid module pointer. */
return(TX_PTR_ERROR);
}
/* Determine if the module instance is in the loaded state. */
if ((module_instance -> txm_module_instance_state != TXM_MODULE_LOADED) && (module_instance -> txm_module_instance_state != TXM_MODULE_STOPPED))
{
/* Release the protection mutex. */
_tx_mutex_put(&_txm_module_manager_mutex);
/* Return error if the module is not ready. */
return(TX_START_ERROR);
}
/* Set module's maximum priority. */
module_instance->txm_module_instance_maximum_priority = priority;
/* Release the protection mutex. */
_tx_mutex_put(&_txm_module_manager_mutex);
return(TX_SUCCESS);
}