3 * Copyright (C) Amazon.com, Inc. or its affiliates. All Rights Reserved.
5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
6 * this software and associated documentation files (the "Software"), to deal in
7 * the Software without restriction, including without limitation the rights to
8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
9 * the Software, and to permit persons to whom the Software is furnished to do so,
10 * subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in all
13 * copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * https://www.FreeRTOS.org
23 * https://github.com/FreeRTOS
27 #include "proof/queue.h"
29 /* In this case we cannot wrap the macro in a function call to give a function
30 * contract because we require annotations within the macro body, which is not
31 * supported by VeriFast */
32 #define prvLockQueue( pxQueue ) \
33 taskENTER_CRITICAL(); \
35 if( ( pxQueue )->cRxLock == queueUNLOCKED ) \
37 ( pxQueue )->cRxLock = queueLOCKED_UNMODIFIED; \
39 if( ( pxQueue )->cTxLock == queueUNLOCKED ) \
41 ( pxQueue )->cTxLock = queueLOCKED_UNMODIFIED; \
46 void wrapper_prvLockQueue( QueueHandle_t xQueue )
48 /*@requires [1/2]queuehandle(xQueue, ?N, ?M, ?is_isr) &*& is_isr == false &*&
49 * [1/2]queuelock(xQueue);@*/
51 /*@ensures [1/2]queuehandle(xQueue, N, M, is_isr) &*&
52 * [1/2]xQueue->locked |-> ?m &*&
53 * mutex_held(m, queue_locked_invariant(xQueue), currentThread, 1/2) &*&
54 * queue_locked_invariant(xQueue)();@*/
57 /*@open queue(xQueue, ?Storage, N, M, ?W, ?R, ?K, ?is_locked, ?abs);@*/
59 if( ( xQueue )->cRxLock == queueUNLOCKED )
61 ( xQueue )->cRxLock = queueLOCKED_UNMODIFIED;
64 if( ( xQueue )->cTxLock == queueUNLOCKED )
66 ( xQueue )->cTxLock = queueLOCKED_UNMODIFIED;
69 /*@close queue(xQueue, Storage, N, M, W, R, K, true, abs);@*/
71 #ifdef VERIFAST /*< ghost action */
72 mutex_acquire( xQueue->locked );