/*
 * FreeRTOS V202212.00
 * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * https://www.FreeRTOS.org
 * https://github.com/FreeRTOS
 *
 */

#include "FreeRTOS.h"
#include "queue.h"
#include "queue_init.h"
#include "tasksStubs.h"

#include "cbmc.h"

#ifndef LOCK_BOUND
    #define LOCK_BOUND    4
#endif

#ifndef QUEUE_PEEK_BOUND
    #define QUEUE_PEEK_BOUND    4
#endif

QueueHandle_t xQueue;


/* This method is called to initialize pxTimeOut.
 * Setting up the data structure is not interesting for the proof,
 * but the harness uses it to model a release
 * on the queue after first check. */
void vTaskInternalSetTimeOutState( TimeOut_t * const pxTimeOut )
{
    xQueue->uxMessagesWaiting = nondet_BaseType_t();
}

void harness()
{
    xQueue = xUnconstrainedQueueBoundedItemSize( 10 );

    /*Initialise the tasksStubs */
    vInitTaskCheckForTimeOut( 0, QUEUE_PEEK_BOUND - 1 );

    TickType_t xTicksToWait;

    if( xState == taskSCHEDULER_SUSPENDED )
    {
        xTicksToWait = 0;
    }

    if( xQueue )
    {
        __CPROVER_assume( xQueue->cTxLock < LOCK_BOUND - 1 );
        __CPROVER_assume( xQueue->cRxLock < LOCK_BOUND - 1 );

        void * pvItemToQueue = pvPortMalloc( xQueue->uxItemSize );

        /* In case malloc fails as this is otherwise an invariant violation. */
        if( !pvItemToQueue )
        {
            xQueue->uxItemSize = 0;
        }

        xQueuePeek( xQueue, pvItemToQueue, xTicksToWait );
    }
}