threadx
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Outline
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#define TX_SOURCE_CODE
#include "tx_api.h"
#include "tx_block_pool.h"
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_txe_block_release(void *)
Files
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SourceVuSTM32 Libraries and Samplesthreadxcommon/src/txe_block_release.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 */ /** */ /** Block Pool */ /** */... /**************************************************************************/ /**************************************************************************/ #define TX_SOURCE_CODE /* Include necessary system files. */ #include "tx_api.h" #include "tx_block_pool.h" ... /**************************************************************************/ /* */ /* FUNCTION RELEASE */ /* */ /* _txe_block_release PORTABLE C */ /* 6.1 */ /* AUTHOR */ /* */ /* William E. Lamie, Microsoft Corporation */ /* */ /* DESCRIPTION */ /* */ /* This function checks for errors in the block release function call. */ /* */ /* INPUT */ /* */ /* block_ptr Pointer to memory block */ /* */ /* OUTPUT */ /* */ /* TX_PTR_ERROR Invalid memory block pointer */ /* status Actual completion status */ /* */ /* CALLS */ /* */ /* _tx_block_release Actual block release 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_block_release(VOID *block_ptr) { UINT status; TX_BLOCK_POOL *pool_ptr; UCHAR **indirect_ptr; UCHAR *work_ptr; /* First check the supplied pointer. */ if (block_ptr == TX_NULL) { /* The block pointer is invalid, return appropriate status. */ status = TX_PTR_ERROR; }if (block_ptr == TX_NULL) { ... } else { /* Pickup the pool pointer which is just previous to the starting address of block that the caller sees. *//* ... */ work_ptr = TX_VOID_TO_UCHAR_POINTER_CONVERT(block_ptr); work_ptr = TX_UCHAR_POINTER_SUB(work_ptr, (sizeof(UCHAR *))); indirect_ptr = TX_UCHAR_TO_INDIRECT_UCHAR_POINTER_CONVERT(work_ptr); work_ptr = *indirect_ptr; pool_ptr = TX_UCHAR_TO_BLOCK_POOL_POINTER_CONVERT(work_ptr); /* Check for an invalid pool pointer. */ if (pool_ptr == TX_NULL) { /* Pool pointer is invalid, return appropriate error code. */ status = TX_PTR_ERROR; }if (pool_ptr == TX_NULL) { ... } /* Now check for invalid pool ID. */ else if (pool_ptr -> tx_block_pool_id != TX_BLOCK_POOL_ID) { /* Pool pointer is invalid, return appropriate error code. */ status = TX_PTR_ERROR; }else if (pool_ptr -> tx_block_pool_id != TX_BLOCK_POOL_ID) { ... } else { /* Call actual block release function. */ status = _tx_block_release(block_ptr); }else { ... } }else { ... } /* Return completion status. */ return(status); }{ ... }
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