X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=FreeRTOS%2FDemo%2FWIN32-MSVC%2FDemosModifiedForLowTickRate%2Frecmutex.c;h=d784200e3a2d2316c1d6ced9ab182649a1ed8c0a;hb=62c041d220c4812a1ea4350cac687998fcd5d733;hp=ffbb547bf8e30ddb7d127e5f634bf95a7c7416ea;hpb=90f4c3885b2e63f57a7172c148f67b96cf44eca2;p=freertos diff --git a/FreeRTOS/Demo/WIN32-MSVC/DemosModifiedForLowTickRate/recmutex.c b/FreeRTOS/Demo/WIN32-MSVC/DemosModifiedForLowTickRate/recmutex.c index ffbb547bf..d784200e3 100644 --- a/FreeRTOS/Demo/WIN32-MSVC/DemosModifiedForLowTickRate/recmutex.c +++ b/FreeRTOS/Demo/WIN32-MSVC/DemosModifiedForLowTickRate/recmutex.c @@ -1,67 +1,70 @@ /* - FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd. - - - *************************************************************************** - * * - * FreeRTOS tutorial books are available in pdf and paperback. * - * Complete, revised, and edited pdf reference manuals are also * - * available. * - * * - * Purchasing FreeRTOS documentation will not only help you, by * - * ensuring you get running as quickly as possible and with an * - * in-depth knowledge of how to use FreeRTOS, it will also help * - * the FreeRTOS project to continue with its mission of providing * - * professional grade, cross platform, de facto standard solutions * - * for microcontrollers - completely free of charge! * - * * - * >>> See http://www.FreeRTOS.org/Documentation for details. <<< * - * * - * Thank you for using FreeRTOS, and thank you for your support! * - * * - *************************************************************************** + FreeRTOS V8.2.1 - Copyright (C) 2015 Real Time Engineers Ltd. + All rights reserved + VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. This file is part of the FreeRTOS distribution. FreeRTOS is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License (version 2) as published by the - Free Software Foundation AND MODIFIED BY the FreeRTOS exception. - >>>NOTE<<< The modification to the GPL is included to allow you to - distribute a combined work that includes FreeRTOS without being obliged to - provide the source code for proprietary components outside of the FreeRTOS - kernel. FreeRTOS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - more details. You should have received a copy of the GNU General Public - License and the FreeRTOS license exception along with FreeRTOS; if not it - can be viewed here: http://www.freertos.org/a00114.html and also obtained - by writing to Richard Barry, contact details for whom are available on the - FreeRTOS WEB site. + Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception. + + *************************************************************************** + >>! NOTE: The modification to the GPL is included to allow you to !<< + >>! distribute a combined work that includes FreeRTOS without being !<< + >>! obliged to provide the source code for proprietary components !<< + >>! outside of the FreeRTOS kernel. !<< + *************************************************************************** + + FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + FOR A PARTICULAR PURPOSE. Full license text is available on the following + link: http://www.freertos.org/a00114.html - 1 tab == 4 spaces! - *************************************************************************** * * - * Having a problem? Start by reading the FAQ "My application does * - * not run, what could be wrong? * + * FreeRTOS provides completely free yet professionally developed, * + * robust, strictly quality controlled, supported, and cross * + * platform software that is more than just the market leader, it * + * is the industry's de facto standard. * * * - * http://www.FreeRTOS.org/FAQHelp.html * + * Help yourself get started quickly while simultaneously helping * + * to support the FreeRTOS project by purchasing a FreeRTOS * + * tutorial book, reference manual, or both: * + * http://www.FreeRTOS.org/Documentation * * * *************************************************************************** - - http://www.FreeRTOS.org - Documentation, training, latest information, - license and contact details. - + http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading + the FAQ page "My application does not run, what could be wrong?". Have you + defined configASSERT()? + + http://www.FreeRTOS.org/support - In return for receiving this top quality + embedded software for free we request you assist our global community by + participating in the support forum. + + http://www.FreeRTOS.org/training - Investing in training allows your team to + be as productive as possible as early as possible. Now you can receive + FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers + Ltd, and the world's leading authority on the world's leading RTOS. + http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, - including FreeRTOS+Trace - an indispensable productivity tool. + including FreeRTOS+Trace - an indispensable productivity tool, a DOS + compatible FAT file system, and our tiny thread aware UDP/IP stack. + + http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. + Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. + + http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High + Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS + licenses offer ticketed support, indemnification and commercial middleware. + + http://www.SafeRTOS.com - High Integrity Systems also provide a safety + engineered and independently SIL3 certified version for use in safety and + mission critical applications that require provable dependability. - Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell - the code with commercial support, indemnification, and middleware, under - the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also - provide a safety engineered and independently SIL3 certified version under - the SafeRTOS brand: http://www.SafeRTOS.com. + 1 tab == 4 spaces! */ /* @@ -121,8 +124,8 @@ a chance of executing - this is basically achieved by reducing the number of times the loop that takes/gives the recursive mutex executes. */ #define recmuMAX_COUNT ( 2 ) #define recmuSHORT_DELAY ( 20 ) -#define recmuNO_DELAY ( ( portTickType ) 0 ) -#define recmuFIVE_TICK_DELAY ( ( portTickType ) 5 ) +#define recmuNO_DELAY ( ( TickType_t ) 0 ) +#define recmuFIVE_TICK_DELAY ( ( TickType_t ) 5 ) /* The three tasks as described at the top of this file. */ static void prvRecursiveMutexControllingTask( void *pvParameters ); @@ -130,7 +133,7 @@ static void prvRecursiveMutexBlockingTask( void *pvParameters ); static void prvRecursiveMutexPollingTask( void *pvParameters ); /* The mutex used by the demo. */ -static xSemaphoreHandle xMutex; +static SemaphoreHandle_t xMutex; /* Variables used to detect and latch errors. */ static volatile portBASE_TYPE xErrorOccurred = pdFALSE, xControllingIsSuspended = pdFALSE, xBlockingIsSuspended = pdFALSE; @@ -138,7 +141,7 @@ static volatile unsigned portBASE_TYPE uxControllingCycles = 0, uxBlockingCycles /* Handles of the two higher priority tasks, required so they can be resumed (unsuspended). */ -static xTaskHandle xControllingTaskHandle, xBlockingTaskHandle; +static TaskHandle_t xControllingTaskHandle, xBlockingTaskHandle, xPollingTaskHandle; /*-----------------------------------------------------------*/ @@ -154,14 +157,14 @@ void vStartRecursiveMutexTasks( void ) is not being used. The call to vQueueAddToRegistry() will be removed by the pre-processor if configQUEUE_REGISTRY_SIZE is not defined or is defined to be less than 1. */ - vQueueAddToRegistry( ( xQueueHandle ) xMutex, ( signed portCHAR * ) "Recursive_Mutex" ); + vQueueAddToRegistry( ( QueueHandle_t ) xMutex, "Recursive_Mutex" ); if( xMutex != NULL ) { - xTaskCreate( prvRecursiveMutexControllingTask, ( signed portCHAR * ) "Rec1Ctrl", configMINIMAL_STACK_SIZE, NULL, recmuCONTROLLING_TASK_PRIORITY, &xControllingTaskHandle ); - xTaskCreate( prvRecursiveMutexBlockingTask, ( signed portCHAR * ) "Rec2Blck", configMINIMAL_STACK_SIZE, NULL, recmuBLOCKING_TASK_PRIORITY, &xBlockingTaskHandle ); - xTaskCreate( prvRecursiveMutexPollingTask, ( signed portCHAR * ) "Rec3Poll", configMINIMAL_STACK_SIZE, NULL, recmuPOLLING_TASK_PRIORITY, NULL ); + xTaskCreate( prvRecursiveMutexControllingTask, "Rec1Ctrl", configMINIMAL_STACK_SIZE, NULL, recmuCONTROLLING_TASK_PRIORITY, &xControllingTaskHandle ); + xTaskCreate( prvRecursiveMutexBlockingTask, "Rec2Blck", configMINIMAL_STACK_SIZE, NULL, recmuBLOCKING_TASK_PRIORITY, &xBlockingTaskHandle ); + xTaskCreate( prvRecursiveMutexPollingTask, "Rec3Poll", configMINIMAL_STACK_SIZE, NULL, recmuPOLLING_TASK_PRIORITY, &xPollingTaskHandle ); } } /*-----------------------------------------------------------*/ @@ -224,6 +227,10 @@ unsigned portBASE_TYPE ux; { xErrorOccurred = pdTRUE; } + + #if configUSE_PREEMPTION == 0 + taskYIELD(); + #endif } /* Having given it back the same number of times as it was taken, we @@ -330,10 +337,17 @@ static void prvRecursiveMutexPollingTask( void *pvParameters ) block indefinitely when it attempts to obtain the mutex, the Controlling task will only block for a fixed period and an error will be latched if the polling task has not returned the - mutex by the time this fixed period has expired. */ + mutex by the time this fixed period has expired. */ vTaskResume( xBlockingTaskHandle ); - vTaskResume( xControllingTaskHandle ); - + #if configUSE_PREEMPTION == 0 + taskYIELD(); + #endif + + vTaskResume( xControllingTaskHandle ); + #if configUSE_PREEMPTION == 0 + taskYIELD(); + #endif + /* The other two tasks should now have executed and no longer be suspended. */ if( ( xBlockingIsSuspended == pdTRUE ) || ( xControllingIsSuspended == pdTRUE ) ) @@ -346,6 +360,10 @@ static void prvRecursiveMutexPollingTask( void *pvParameters ) { xErrorOccurred = pdTRUE; } + + #if configUSE_PREEMPTION == 0 + taskYIELD(); + #endif } }