/*\r
- FreeRTOS V8.0.0:rc1 - Copyright (C) 2014 Real Time Engineers Ltd.\r
- All rights reserved\r
-\r
- VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS provides completely free yet professionally developed, *\r
- * robust, strictly quality controlled, supported, and cross *\r
- * platform software that has become a de facto standard. *\r
- * *\r
- * Help yourself get started quickly and support the FreeRTOS *\r
- * project by purchasing a FreeRTOS tutorial book, reference *\r
- * manual, or both from: http://www.FreeRTOS.org/Documentation *\r
- * *\r
- * Thank you! *\r
- * *\r
- ***************************************************************************\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.\r
-\r
- >>! NOTE: The modification to the GPL is included to allow you to distribute\r
- >>! a combined work that includes FreeRTOS without being obliged to provide\r
- >>! the source code for proprietary components outside of the FreeRTOS\r
- >>! kernel.\r
-\r
- FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
- FOR A PARTICULAR PURPOSE. Full license text is available from the following\r
- link: http://www.freertos.org/a00114.html\r
-\r
- 1 tab == 4 spaces!\r
-\r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong?" *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
- license and Real Time Engineers Ltd. contact details.\r
-\r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
- compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
-\r
- http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High\r
- Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS\r
- licenses offer ticketed support, indemnification and middleware.\r
-\r
- http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
- engineered and independently SIL3 certified version for use in safety and\r
- mission critical applications that require provable dependability.\r
-\r
- 1 tab == 4 spaces!\r
-*/\r
+ * FreeRTOS Kernel V10.3.0\r
+ * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.\r
+ *\r
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of\r
+ * this software and associated documentation files (the "Software"), to deal in\r
+ * the Software without restriction, including without limitation the rights to\r
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\r
+ * the Software, and to permit persons to whom the Software is furnished to do so,\r
+ * subject to the following conditions:\r
+ *\r
+ * The above copyright notice and this permission notice shall be included in all\r
+ * copies or substantial portions of the Software.\r
+ *\r
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
+ *\r
+ * http://www.FreeRTOS.org\r
+ * http://aws.amazon.com/freertos\r
+ *\r
+ * 1 tab == 4 spaces!\r
+ */\r
\r
/*\r
The tasks defined on this page demonstrate the use of recursive mutexes.\r
#define recmuMAX_COUNT ( 10 )\r
\r
/* Misc. */\r
-#define recmuSHORT_DELAY ( 20 / portTICK_PERIOD_MS )\r
+#define recmuSHORT_DELAY ( pdMS_TO_TICKS( 20 ) )\r
#define recmuNO_DELAY ( ( TickType_t ) 0 )\r
-#define recmuFIVE_TICK_DELAY ( ( TickType_t ) 5 )\r
+#define recmu15ms_DELAY ( pdMS_TO_TICKS( 15 ) )\r
+\r
+#ifndef recmuRECURSIVE_MUTEX_TEST_TASK_STACK_SIZE\r
+ #define recmuRECURSIVE_MUTEX_TEST_TASK_STACK_SIZE configMINIMAL_STACK_SIZE\r
+#endif\r
\r
/* The three tasks as described at the top of this file. */\r
static void prvRecursiveMutexControllingTask( void *pvParameters );\r
static SemaphoreHandle_t xMutex;\r
\r
/* Variables used to detect and latch errors. */\r
-static volatile portBASE_TYPE xErrorOccurred = pdFALSE, xControllingIsSuspended = pdFALSE, xBlockingIsSuspended = pdFALSE;\r
-static volatile unsigned portBASE_TYPE uxControllingCycles = 0, uxBlockingCycles = 0, uxPollingCycles = 0;\r
+static volatile BaseType_t xErrorOccurred = pdFALSE, xControllingIsSuspended = pdFALSE, xBlockingIsSuspended = pdFALSE;\r
+static volatile UBaseType_t uxControllingCycles = 0, uxBlockingCycles = 0, uxPollingCycles = 0;\r
\r
/* Handles of the two higher priority tasks, required so they can be resumed\r
(unsuspended). */\r
\r
xMutex = xSemaphoreCreateRecursiveMutex();\r
\r
- /* vQueueAddToRegistry() adds the mutex to the registry, if one is\r
- in use. The registry is provided as a means for kernel aware\r
- debuggers to locate mutex and has no purpose if a kernel aware debugger\r
- is not being used. The call to vQueueAddToRegistry() will be removed\r
- by the pre-processor if configQUEUE_REGISTRY_SIZE is not defined or is\r
- defined to be less than 1. */\r
- vQueueAddToRegistry( ( QueueHandle_t ) xMutex, "Recursive_Mutex" );\r
-\r
-\r
if( xMutex != NULL )\r
{\r
- xTaskCreate( prvRecursiveMutexControllingTask, "Rec1", configMINIMAL_STACK_SIZE, NULL, recmuCONTROLLING_TASK_PRIORITY, &xControllingTaskHandle );\r
- xTaskCreate( prvRecursiveMutexBlockingTask, "Rec2", configMINIMAL_STACK_SIZE, NULL, recmuBLOCKING_TASK_PRIORITY, &xBlockingTaskHandle );\r
- xTaskCreate( prvRecursiveMutexPollingTask, "Rec3", configMINIMAL_STACK_SIZE, NULL, recmuPOLLING_TASK_PRIORITY, NULL );\r
+ /* vQueueAddToRegistry() adds the mutex to the registry, if one is\r
+ in use. The registry is provided as a means for kernel aware\r
+ debuggers to locate mutex and has no purpose if a kernel aware debugger\r
+ is not being used. The call to vQueueAddToRegistry() will be removed\r
+ by the pre-processor if configQUEUE_REGISTRY_SIZE is not defined or is\r
+ defined to be less than 1. */\r
+ vQueueAddToRegistry( ( QueueHandle_t ) xMutex, "Recursive_Mutex" );\r
+\r
+ xTaskCreate( prvRecursiveMutexControllingTask, "Rec1", recmuRECURSIVE_MUTEX_TEST_TASK_STACK_SIZE, NULL, recmuCONTROLLING_TASK_PRIORITY, &xControllingTaskHandle );\r
+ xTaskCreate( prvRecursiveMutexBlockingTask, "Rec2", recmuRECURSIVE_MUTEX_TEST_TASK_STACK_SIZE, NULL, recmuBLOCKING_TASK_PRIORITY, &xBlockingTaskHandle );\r
+ xTaskCreate( prvRecursiveMutexPollingTask, "Rec3", recmuRECURSIVE_MUTEX_TEST_TASK_STACK_SIZE, NULL, recmuPOLLING_TASK_PRIORITY, NULL );\r
}\r
}\r
/*-----------------------------------------------------------*/\r
\r
static void prvRecursiveMutexControllingTask( void *pvParameters )\r
{\r
-unsigned portBASE_TYPE ux;\r
+UBaseType_t ux;\r
\r
/* Just to remove compiler warning. */\r
( void ) pvParameters;\r
long enough to ensure the polling task will execute again before the\r
block time expires. If the block time does expire then the error\r
flag will be set here. */\r
- if( xSemaphoreTakeRecursive( xMutex, recmuFIVE_TICK_DELAY ) != pdPASS )\r
+ if( xSemaphoreTakeRecursive( xMutex, recmu15ms_DELAY ) != pdPASS )\r
{\r
xErrorOccurred = pdTRUE;\r
}\r
{\r
xErrorOccurred = pdTRUE;\r
}\r
+\r
+ #if( configUSE_PREEMPTION == 0 )\r
+ taskYIELD();\r
+ #endif\r
}\r
\r
/* Having given it back the same number of times as it was taken, we\r
\r
for( ;; )\r
{\r
- /* Keep attempting to obtain the mutex. We should only obtain it when\r
+ /* Keep attempting to obtain the mutex. It should only be obtained when\r
the blocking task has suspended itself, which in turn should only\r
happen when the controlling task is also suspended. */\r
if( xSemaphoreTakeRecursive( xMutex, recmuNO_DELAY ) == pdPASS )\r
error will be latched if the polling task has not returned the\r
mutex by the time this fixed period has expired. */\r
vTaskResume( xBlockingTaskHandle );\r
- vTaskResume( xControllingTaskHandle );\r
+ #if( configUSE_PREEMPTION == 0 )\r
+ taskYIELD();\r
+ #endif\r
+\r
+ vTaskResume( xControllingTaskHandle );\r
+ #if( configUSE_PREEMPTION == 0 )\r
+ taskYIELD();\r
+ #endif\r
\r
/* The other two tasks should now have executed and no longer\r
be suspended. */\r
/*-----------------------------------------------------------*/\r
\r
/* This is called to check that all the created tasks are still running. */\r
-portBASE_TYPE xAreRecursiveMutexTasksStillRunning( void )\r
+BaseType_t xAreRecursiveMutexTasksStillRunning( void )\r
{\r
-portBASE_TYPE xReturn;\r
-static unsigned portBASE_TYPE uxLastControllingCycles = 0, uxLastBlockingCycles = 0, uxLastPollingCycles = 0;\r
+BaseType_t xReturn;\r
+static UBaseType_t uxLastControllingCycles = 0, uxLastBlockingCycles = 0, uxLastPollingCycles = 0;\r
\r
/* Is the controlling task still cycling? */\r
if( uxLastControllingCycles == uxControllingCycles )\r
}\r
else\r
{\r
- xReturn = pdTRUE;\r
+ xReturn = pdPASS;\r
}\r
\r
return xReturn;\r
projects / freertos / blobdiff