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/*
* FreeRTOS V202212.00
* Copyright (C) 2022 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
*
*/
/**
* @file multiple_tasks_running.c
* @brief The user shall be able to schedule tasks across multiple identical processor cores
* with one instance of FreeRTOS scheduler.
*
* Procedure:
* - Create ( num of cores - 1 ) tasks and keep them in busy loop.
* Expected:
* - All tasks are in running state.
*/
/* Kernel includes. */
#include "FreeRTOS.h" /* Must come first. */
#include "task.h" /* RTOS task related API prototypes. */
/* Unity includes. */
#include "unity.h"
/*-----------------------------------------------------------*/
#ifndef TEST_CONFIG_H
#error test_config.h must be included at the end of FreeRTOSConfig.h.
#endif
#if ( configNUMBER_OF_CORES < 2 )
#error This test is for FreeRTOS SMP and therefore, requires at least 2 cores.
#endif /* if configNUMBER_OF_CORES != 2 */
#if ( configRUN_MULTIPLE_PRIORITIES != 1 )
#error configRUN_MULTIPLE_PRIORITIES must be set to 1 for this test.
#endif /* if ( configRUN_MULTIPLE_PRIORITIES != 1 ) */
#if ( configMAX_PRIORITIES <= 2 )
#error configMAX_PRIORITIES must be larger than 2 to avoid scheduling idle tasks unexpectedly.
#endif /* if ( configMAX_PRIORITIES <= 2 ) */
/*-----------------------------------------------------------*/
/**
* @brief Function that implements a never blocking FreeRTOS task.
*/
static void prvEverRunningTask( void * pvParameters );
/**
* @brief Test case "Multiple Tasks Running".
*/
static void Test_MultipleTasksRunning( void );
/*-----------------------------------------------------------*/
/**
* @brief Handles of the tasks created in this test.
*/
static TaskHandle_t xTaskHandles[ configNUMBER_OF_CORES - 1 ];
/*-----------------------------------------------------------*/
static void Test_MultipleTasksRunning( void )
{
int i;
eTaskState xTaskState;
/* Delay for other cores to run tasks. */
vTaskDelay( pdMS_TO_TICKS( 10 ) );
/* Ensure that all the tasks are running. */
for( i = 0; i < ( configNUMBER_OF_CORES - 1 ); i++ )
{
xTaskState = eTaskGetState( xTaskHandles[ i ] );
TEST_ASSERT_EQUAL_MESSAGE( eRunning, xTaskState, "Task is not running." );
}
}
/*-----------------------------------------------------------*/
static void prvEverRunningTask( void * pvParameters )
{
/* Silence warnings about unused parameters. */
( void ) pvParameters;
for( ; ; )
{
/* Always running, put asm here to avoid optimization by compiler. */
__asm volatile ( "nop" );
}
}
/*-----------------------------------------------------------*/
/* Runs before every test, put init calls here. */
void setUp( void )
{
int i;
BaseType_t xTaskCreationResult;
/* Create configNUMBER_OF_CORES - 1 low priority tasks. */
for( i = 0; i < ( configNUMBER_OF_CORES - 1 ); i++ )
{
xTaskCreationResult = xTaskCreate( prvEverRunningTask,
"EverRunning",
configMINIMAL_STACK_SIZE,
NULL,
configMAX_PRIORITIES - 2,
&( xTaskHandles[ i ] ) );
TEST_ASSERT_EQUAL_MESSAGE( pdPASS, xTaskCreationResult, "Task creation failed." );
}
}
/*-----------------------------------------------------------*/
/* Runs after every test, put clean-up calls here. */
void tearDown( void )
{
int i;
/* Delete all the tasks. */
for( i = 0; i < ( configNUMBER_OF_CORES - 1 ); i++ )
{
if( xTaskHandles[ i ] != NULL )
{
vTaskDelete( xTaskHandles[ i ] );
}
}
}
/*-----------------------------------------------------------*/
void vRunMultipleTasksRunningTest( void )
{
UNITY_BEGIN();
RUN_TEST( Test_MultipleTasksRunning );
UNITY_END();
}
/*-----------------------------------------------------------*/
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