/*
 * 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 "tasksStubs.h"
#include "queue_datastructure.h"
#include "cbmc.h"

QueueHandle_t xMutex;

void vTaskInternalSetTimeOutState( TimeOut_t * const pxTimeOut )
{
    /* QueueSemaphoreTake might be blocked to wait for
     * another process to release a token to the semaphore.
     * This is currently not in the CBMC model. Anyhow,
     * vTaskInternalSetTimeOutState is set a timeout for
     * QueueSemaphoreTake operation. We use this to model a successful
     * release during wait time. */
    UBaseType_t bound;

    __CPROVER_assume( ( bound >= 0 && xMutex->uxLength >= bound ) );
    xMutex->uxMessagesWaiting = bound;
}

BaseType_t xTaskGetSchedulerState( void )
{
    BaseType_t ret;

    __CPROVER_assume( ret != taskSCHEDULER_SUSPENDED );
    return ret;
}

void harness()
{
    uint8_t ucQueueType;

    xMutex = xQueueCreateMutex( ucQueueType );
    TickType_t xTicksToWait;

    /* Init task stub to make sure that the QueueSemaphoreTake_BOUND - 1
     * loop iteration simulates a time out */
    vInitTaskCheckForTimeOut( 0, QueueSemaphoreTake_BOUND - 1 );

    if( xMutex )
    {
        xMutex->cTxLock = PRV_UNLOCK_UNWINDING_BOUND - 1;
        xMutex->cRxLock = PRV_UNLOCK_UNWINDING_BOUND - 1;
        xMutex->uxMessagesWaiting = nondet_UBaseType_t();
        xQueueTakeMutexRecursive( xMutex, xTicksToWait );
    }
}