generated from Template/H563ZI-HAL-CMake-Template
163 lines
7.1 KiB
C
163 lines
7.1 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. */
|
|
/* */
|
|
/**************************************************************************/
|
|
|
|
|
|
/**************************************************************************/
|
|
/**************************************************************************/
|
|
/** */
|
|
/** ThreadX Component */
|
|
/** */
|
|
/** Queue */
|
|
/** */
|
|
/**************************************************************************/
|
|
/**************************************************************************/
|
|
|
|
#define TX_SOURCE_CODE
|
|
|
|
|
|
/* Include necessary system files. */
|
|
|
|
#include "tx_api.h"
|
|
#include "tx_timer.h"
|
|
#include "tx_thread.h"
|
|
#include "tx_queue.h"
|
|
|
|
|
|
/**************************************************************************/
|
|
/* */
|
|
/* FUNCTION RELEASE */
|
|
/* */
|
|
/* _txe_queue_receive PORTABLE C */
|
|
/* 6.1 */
|
|
/* AUTHOR */
|
|
/* */
|
|
/* William E. Lamie, Microsoft Corporation */
|
|
/* */
|
|
/* DESCRIPTION */
|
|
/* */
|
|
/* This function checks for errors in the queue receive function call. */
|
|
/* */
|
|
/* INPUT */
|
|
/* */
|
|
/* queue_ptr Pointer to queue control block */
|
|
/* destination_ptr Pointer to message destination */
|
|
/* **** MUST BE LARGE ENOUGH TO */
|
|
/* HOLD MESSAGE **** */
|
|
/* wait_option Suspension option */
|
|
/* */
|
|
/* OUTPUT */
|
|
/* */
|
|
/* TX_QUEUE_ERROR Invalid queue pointer */
|
|
/* TX_PTR_ERROR Invalid destination pointer (NULL)*/
|
|
/* TX_WAIT_ERROR Invalid wait option */
|
|
/* status Actual completion status */
|
|
/* */
|
|
/* CALLS */
|
|
/* */
|
|
/* _tx_queue_receive Actual queue receive function */
|
|
/* */
|
|
/* CALLED BY */
|
|
/* */
|
|
/* Application Code */
|
|
/* */
|
|
/* RELEASE HISTORY */
|
|
/* */
|
|
/* DATE NAME DESCRIPTION */
|
|
/* */
|
|
/* 05-19-2020 William E. Lamie Initial Version 6.0 */
|
|
/* 09-30-2020 Yuxin Zhou Modified comment(s), */
|
|
/* resulting in version 6.1 */
|
|
/* */
|
|
/**************************************************************************/
|
|
UINT _txe_queue_receive(TX_QUEUE *queue_ptr, VOID *destination_ptr, ULONG wait_option)
|
|
{
|
|
|
|
UINT status;
|
|
|
|
#ifndef TX_TIMER_PROCESS_IN_ISR
|
|
TX_THREAD *current_thread;
|
|
#endif
|
|
|
|
|
|
/* Default status to success. */
|
|
status = TX_SUCCESS;
|
|
|
|
/* Check for an invalid queue pointer. */
|
|
if (queue_ptr == TX_NULL)
|
|
{
|
|
|
|
/* Queue pointer is invalid, return appropriate error code. */
|
|
status = TX_QUEUE_ERROR;
|
|
}
|
|
|
|
/* Now check for invalid queue ID. */
|
|
else if (queue_ptr -> tx_queue_id != TX_QUEUE_ID)
|
|
{
|
|
|
|
/* Queue pointer is invalid, return appropriate error code. */
|
|
status = TX_QUEUE_ERROR;
|
|
}
|
|
|
|
/* Check for an invalid destination for message. */
|
|
else if (destination_ptr == TX_NULL)
|
|
{
|
|
|
|
/* Null destination pointer, return appropriate error. */
|
|
status = TX_PTR_ERROR;
|
|
}
|
|
else
|
|
{
|
|
|
|
/* Check for a wait option error. Only threads are allowed any form of
|
|
suspension. */
|
|
if (wait_option != TX_NO_WAIT)
|
|
{
|
|
|
|
/* Is the call from an ISR or Initialization? */
|
|
if (TX_THREAD_GET_SYSTEM_STATE() != ((ULONG) 0))
|
|
{
|
|
|
|
/* A non-thread is trying to suspend, return appropriate error code. */
|
|
status = TX_WAIT_ERROR;
|
|
}
|
|
|
|
#ifndef TX_TIMER_PROCESS_IN_ISR
|
|
else
|
|
{
|
|
|
|
/* Pickup thread pointer. */
|
|
TX_THREAD_GET_CURRENT(current_thread)
|
|
|
|
/* Is the current thread the timer thread? */
|
|
if (current_thread == &_tx_timer_thread)
|
|
{
|
|
|
|
/* A non-thread is trying to suspend, return appropriate error code. */
|
|
status = TX_WAIT_ERROR;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/* Determine if everything is okay. */
|
|
if (status == TX_SUCCESS)
|
|
{
|
|
|
|
/* Call actual queue receive function. */
|
|
status = _tx_queue_receive(queue_ptr, destination_ptr, wait_option);
|
|
}
|
|
|
|
/* Return completion status. */
|
|
return(status);
|
|
}
|
|
|