]> git.sur5r.net Git - freertos/blobdiff - FreeRTOS/Demo/WIN32-MingW/DemosModifiedForLowTickRate/recmutex.c
Update version number in readiness for V10.3.0 release. Sync SVN with reviewed releas...
[freertos] / FreeRTOS / Demo / WIN32-MingW / DemosModifiedForLowTickRate / recmutex.c
index 617f8598323797c66f39d8ae9211452b579b4635..2fddfe251ea7b1b09845dacf5d9d057dd205ee73 100644 (file)
@@ -1,70 +1,29 @@
 /*\r
-    FreeRTOS V7.3.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
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-\r
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-    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
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-    more details. You should have received a copy of the GNU General Public\r
-    License and the FreeRTOS license exception along with FreeRTOS; if not it\r
-    can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
-    by writing to Richard Barry, contact details for whom are available on the\r
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-\r
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-\r
-    \r
-    http://www.FreeRTOS.org - Documentation, training, latest versions, license \r
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-    the SafeRTOS brand: http://www.SafeRTOS.com.\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
@@ -123,8 +82,8 @@ a chance of executing - this is basically achieved by reducing the number
 of times the loop that takes/gives the recursive mutex executes. */\r
 #define recmuMAX_COUNT                                 ( 2 )\r
 #define recmuSHORT_DELAY                               ( 20 )\r
-#define recmuNO_DELAY                                  ( ( portTickType ) 0 )\r
-#define recmuFIVE_TICK_DELAY                   ( ( portTickType ) 5 )\r
+#define recmuNO_DELAY                                  ( ( TickType_t ) 0 )\r
+#define recmuFIVE_TICK_DELAY                   ( ( TickType_t ) 5 )\r
 \r
 /* The three tasks as described at the top of this file. */\r
 static void prvRecursiveMutexControllingTask( void *pvParameters );\r
@@ -132,7 +91,7 @@ static void prvRecursiveMutexBlockingTask( void *pvParameters );
 static void prvRecursiveMutexPollingTask( void *pvParameters );\r
 \r
 /* The mutex used by the demo. */\r
-static xSemaphoreHandle xMutex;\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
@@ -140,7 +99,7 @@ static volatile unsigned portBASE_TYPE uxControllingCycles = 0, uxBlockingCycles
 \r
 /* Handles of the two higher priority tasks, required so they can be resumed \r
 (unsuspended). */\r
-static xTaskHandle xControllingTaskHandle, xBlockingTaskHandle;\r
+static TaskHandle_t xControllingTaskHandle, xBlockingTaskHandle, xPollingTaskHandle;\r
 \r
 /*-----------------------------------------------------------*/\r
 \r
@@ -156,14 +115,14 @@ void vStartRecursiveMutexTasks( void )
        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( ( xQueueHandle ) xMutex, ( signed portCHAR * ) "Recursive_Mutex" );\r
+       vQueueAddToRegistry( ( QueueHandle_t ) xMutex, "Recursive_Mutex" );\r
 \r
 \r
        if( xMutex != NULL )\r
        {\r
-               xTaskCreate( prvRecursiveMutexControllingTask, ( signed portCHAR * ) "Rec1Ctrl", configMINIMAL_STACK_SIZE, NULL, recmuCONTROLLING_TASK_PRIORITY, &xControllingTaskHandle );\r
-        xTaskCreate( prvRecursiveMutexBlockingTask, ( signed portCHAR * ) "Rec2Blck", configMINIMAL_STACK_SIZE, NULL, recmuBLOCKING_TASK_PRIORITY, &xBlockingTaskHandle );\r
-        xTaskCreate( prvRecursiveMutexPollingTask, ( signed portCHAR * ) "Rec3Poll", configMINIMAL_STACK_SIZE, NULL, recmuPOLLING_TASK_PRIORITY, NULL );\r
+               xTaskCreate( prvRecursiveMutexControllingTask, "Rec1Ctrl", configMINIMAL_STACK_SIZE, NULL, recmuCONTROLLING_TASK_PRIORITY, &xControllingTaskHandle );\r
+        xTaskCreate( prvRecursiveMutexBlockingTask, "Rec2Blck", configMINIMAL_STACK_SIZE, NULL, recmuBLOCKING_TASK_PRIORITY, &xBlockingTaskHandle );\r
+        xTaskCreate( prvRecursiveMutexPollingTask, "Rec3Poll", configMINIMAL_STACK_SIZE, NULL, recmuPOLLING_TASK_PRIORITY, &xPollingTaskHandle );\r
        }\r
 }\r
 /*-----------------------------------------------------------*/\r
@@ -226,6 +185,10 @@ unsigned portBASE_TYPE ux;
                        {\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
@@ -332,10 +295,17 @@ static void prvRecursiveMutexPollingTask( void *pvParameters )
                                block indefinitely when it attempts to obtain the mutex, the\r
                                Controlling task will only block for a fixed period and an\r
                                error will be latched if the polling task has not returned the\r
-                               mutex by the time this fixed period has expired. */\r
+                               mutex by the time this fixed period has expired. */                             \r
                                vTaskResume( xBlockingTaskHandle );\r
-                vTaskResume( xControllingTaskHandle );\r
-                       \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
                                if( ( xBlockingIsSuspended == pdTRUE ) || ( xControllingIsSuspended == pdTRUE ) )\r
@@ -348,6 +318,10 @@ static void prvRecursiveMutexPollingTask( void *pvParameters )
                                {\r
                                        xErrorOccurred = pdTRUE;\r
                                }\r
+\r
+                               #if configUSE_PREEMPTION == 0\r
+                                       taskYIELD();\r
+                               #endif\r
                        }\r
                }\r
 \r