recmutex.c File Reference

#include "FreeRTOS.h"
#include "task.h"
#include "semphr.h"
#include "recmutex.h"

Macros
#define	recmuBLOCKING_TASK_PRIORITY   ( tskIDLE_PRIORITY + 1 )
#define	recmuCONTROLLING_TASK_PRIORITY   ( tskIDLE_PRIORITY + 2 )
#define	recmuMAX_COUNT   ( 10 )
#define	recmuNO_DELAY   ( ( portTickType ) 0 )
#define	recmuPOLLING_TASK_PRIORITY   ( tskIDLE_PRIORITY + 0 )
#define	recmuSHORT_DELAY   ( 20 / portTICK_RATE_MS )
#define	recmuTWO_TICK_DELAY   ( ( portTickType ) 2 )

Functions
static void	prvRecursiveMutexBlockingTask (void *pvParameters)
static void	prvRecursiveMutexControllingTask (void *pvParameters)
static void	prvRecursiveMutexPollingTask (void *pvParameters)
void	vStartRecursiveMutexTasks (void)
portBASE_TYPE	xAreRecursiveMutexTasksStillRunning (void)

Variables
static volatile unsigned portBASE_TYPE	uxBlockingCycles = 0
static volatile unsigned portBASE_TYPE	uxControllingCycles = 0
static volatile unsigned portBASE_TYPE	uxPollingCycles = 0
static volatile portBASE_TYPE	xBlockingIsSuspended = pdFALSE
static xTaskHandle	xBlockingTaskHandle
static volatile portBASE_TYPE	xControllingIsSuspended = pdFALSE
static xTaskHandle	xControllingTaskHandle
static volatile portBASE_TYPE	xErrorOccurred = pdFALSE
static xSemaphoreHandle	xMutex

#define recmuBLOCKING_TASK_PRIORITY   ( tskIDLE_PRIORITY + 1 )

Referenced by vStartRecursiveMutexTasks().

#define recmuCONTROLLING_TASK_PRIORITY   ( tskIDLE_PRIORITY + 2 )

Referenced by vStartRecursiveMutexTasks().

#define recmuMAX_COUNT   ( 10 )

Referenced by prvRecursiveMutexControllingTask().

#define recmuNO_DELAY   ( ( portTickType ) 0 )

Referenced by prvRecursiveMutexPollingTask().

#define recmuPOLLING_TASK_PRIORITY   ( tskIDLE_PRIORITY + 0 )

Referenced by vStartRecursiveMutexTasks().

#define recmuSHORT_DELAY   ( 20 / portTICK_RATE_MS )

Referenced by prvRecursiveMutexControllingTask().

#define recmuTWO_TICK_DELAY   ( ( portTickType ) 2 )

Referenced by prvRecursiveMutexControllingTask().

static void prvRecursiveMutexBlockingTask ( void *  pvParameters )

static

References NULL, pdFALSE, pdPASS, pdTRUE, uxBlockingCycles, uxControllingCycles, vTaskSuspend(), xBlockingIsSuspended, xControllingIsSuspended, xErrorOccurred, xSemaphoreGiveRecursive, and xSemaphoreTakeRecursive.

Referenced by vStartRecursiveMutexTasks().

static void prvRecursiveMutexControllingTask ( void *  pvParameters )

static

References NULL, pdFALSE, pdPASS, pdTRUE, recmuMAX_COUNT, recmuSHORT_DELAY, recmuTWO_TICK_DELAY, uxControllingCycles, vTaskDelay(), vTaskSuspend(), xControllingIsSuspended, xErrorOccurred, xSemaphoreGiveRecursive, and xSemaphoreTakeRecursive.

Referenced by vStartRecursiveMutexTasks().

static void prvRecursiveMutexPollingTask ( void *  pvParameters )

static

References pdPASS, pdTRUE, recmuNO_DELAY, taskYIELD, uxPollingCycles, vTaskResume(), xBlockingIsSuspended, xBlockingTaskHandle, xControllingIsSuspended, xControllingTaskHandle, xErrorOccurred, xSemaphoreGiveRecursive, and xSemaphoreTakeRecursive.

Referenced by vStartRecursiveMutexTasks().

void vStartRecursiveMutexTasks

(

void

)

References NULL, prvRecursiveMutexBlockingTask(), prvRecursiveMutexControllingTask(), prvRecursiveMutexPollingTask(), recmuBLOCKING_TASK_PRIORITY, recmuCONTROLLING_TASK_PRIORITY, recmuPOLLING_TASK_PRIORITY, vQueueAddToRegistry, xBlockingTaskHandle, xControllingTaskHandle, xSemaphoreCreateRecursiveMutex, and xTaskCreate.

portBASE_TYPE xAreRecursiveMutexTasksStillRunning

(

void

)

References pdFAIL, pdTRUE, uxBlockingCycles, uxControllingCycles, uxPollingCycles, and xErrorOccurred.

volatile unsigned portBASE_TYPE uxBlockingCycles = 0

static

Referenced by prvRecursiveMutexBlockingTask(), and xAreRecursiveMutexTasksStillRunning().

volatile unsigned portBASE_TYPE uxControllingCycles = 0

static

Referenced by prvRecursiveMutexBlockingTask(), prvRecursiveMutexControllingTask(), and xAreRecursiveMutexTasksStillRunning().

volatile unsigned portBASE_TYPE uxPollingCycles = 0

static

Referenced by prvRecursiveMutexPollingTask(), and xAreRecursiveMutexTasksStillRunning().

volatile portBASE_TYPE xBlockingIsSuspended = pdFALSE

static

Referenced by prvRecursiveMutexBlockingTask(), and prvRecursiveMutexPollingTask().

xTaskHandle xBlockingTaskHandle

static

Referenced by prvRecursiveMutexPollingTask(), and vStartRecursiveMutexTasks().

volatile portBASE_TYPE xControllingIsSuspended = pdFALSE

static

Referenced by prvRecursiveMutexBlockingTask(), prvRecursiveMutexControllingTask(), and prvRecursiveMutexPollingTask().

xTaskHandle xControllingTaskHandle

static

Referenced by prvRecursiveMutexPollingTask(), and vStartRecursiveMutexTasks().

volatile portBASE_TYPE xErrorOccurred = pdFALSE

static

Referenced by portTASK_FUNCTION(), prvRecursiveMutexBlockingTask(), prvRecursiveMutexControllingTask(), prvRecursiveMutexPollingTask(), and xAreRecursiveMutexTasksStillRunning().

xSemaphoreHandle xMutex

static

Referenced by prvHighPriorityMutexTask(), prvLowPriorityMutexTask(), vStartAltGenericQueueTasks(), and vStartGenericQueueTasks().