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开启 ThreadX

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chauyin
2025-05-07 22:53:45 +08:00
parent 7f9bede0c7
commit aa43e21103
194 changed files with 42018 additions and 91 deletions
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148
Middlewares/ST/threadx/common/src/txe_event_flags_delete.c Normal file
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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 */
/** */
/** Event Flags */
/** */
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
/* Include necessary system files. */
#include "tx_api.h"
#include "tx_thread.h"
#include "tx_timer.h"
#include "tx_event_flags.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _txe_event_flags_delete PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function checks for errors in the delete event flags group */
/* function call. */
/* */
/* INPUT */
/* */
/* group_ptr Pointer to group control block */
/* */
/* OUTPUT */
/* */
/* TX_GROUP_ERROR Invalid event flag group pointer */
/* TX_CALLER_ERROR Invalid caller of this function */
/* status Actual completion status */
/* */
/* CALLS */
/* */
/* _tx_event_flags_delete Actual delete event flags 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_event_flags_delete(TX_EVENT_FLAGS_GROUP *group_ptr)
{
UINT status;
#ifndef TX_TIMER_PROCESS_IN_ISR
TX_THREAD *thread_ptr;
#endif
#ifndef TX_TIMER_PROCESS_IN_ISR
/* Default status to success. */
status = TX_SUCCESS;
#endif
/* Check for an invalid event flag group pointer. */
if (group_ptr == TX_NULL)
{
/* Event flags group pointer is invalid, return appropriate error code. */
status = TX_GROUP_ERROR;
}
/* Now check for invalid event flag group ID. */
else if (group_ptr -> tx_event_flags_group_id != TX_EVENT_FLAGS_ID)
{
/* Event flags group pointer is invalid, return appropriate error code. */
status = TX_GROUP_ERROR;
}
/* Check for invalid caller of this function. */
/* Is the caller an ISR or Initialization? */
else if (TX_THREAD_GET_SYSTEM_STATE() != ((ULONG) 0))
{
/* Invalid caller of this function, return appropriate error code. */
status = TX_CALLER_ERROR;
}
else
{
#ifndef TX_TIMER_PROCESS_IN_ISR
/* Pickup thread pointer. */
TX_THREAD_GET_CURRENT(thread_ptr)
/* Is the caller the system timer thread? */
if (thread_ptr == &_tx_timer_thread)
{
/* Invalid caller of this function, return appropriate error code. */
status = TX_CALLER_ERROR;
}
/* Determine if everything is okay. */
if (status == TX_SUCCESS)
{
#endif
/* Call actual event flag group delete function. */
status = _tx_event_flags_delete(group_ptr);
#ifndef TX_TIMER_PROCESS_IN_ISR
}
#endif
}
/* Return completion status. */
return(status);
}