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4f87f485d5
* Undo syntax changes preventing VeriFast parsing * Update proofs inline with source changes Outstanding: - xQueueGenericReset return code - Not using prvIncrementQueueTxLock or prvIncrementQueueRxLock macros * Remove git hash check * Document new changes between proven code and implementation * Update copyright header * VeriFast proofs: turn off uncrustify checks Uncrustify requires formatting of comments that is at odds with VeriFast's proof annotations, which are contained within comments. * Update ci.yml Co-authored-by: Joseph Julicher <jjulicher@mac.com> Co-authored-by: Aniruddha Kanhere <60444055+AniruddhaKanhere@users.noreply.github.com>
57 lines
2.1 KiB
C
57 lines
2.1 KiB
C
/*
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* FreeRTOS V202112.00
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* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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*/
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/* *INDENT-OFF* */
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#include "proof/queue.h"
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UBaseType_t uxQueueSpacesAvailable( const QueueHandle_t xQueue )
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/*@requires [1/2]queuehandle(xQueue, ?N, ?M, ?is_isr) &*& is_isr == false;@*/
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/*@ensures [1/2]queuehandle(xQueue, N, M, is_isr);@*/
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{
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UBaseType_t uxReturn;
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#ifdef VERIFAST /*< const pointer declaration */
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Queue_t * pxQueue = xQueue;
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#else
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Queue_t * const pxQueue = xQueue;
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#endif
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configASSERT( pxQueue );
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taskENTER_CRITICAL();
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/*@assert queue(xQueue, ?Storage, N, M, ?W, ?R, ?K, ?is_locked, ?abs);@*/
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{
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uxReturn = pxQueue->uxLength - pxQueue->uxMessagesWaiting;
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/*@assert uxReturn == N - K;@*/
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}
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/*@close queue(xQueue, Storage, N, M, W, R, K, is_locked, abs);@*/
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taskEXIT_CRITICAL();
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return uxReturn;
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} /*lint !e818 Pointer cannot be declared const as xQueue is a typedef not pointer. */
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/* *INDENT-ON* */
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