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Data Structures | Macros | Typedefs | Enumerations | Functions | Variables
tasks.c File Reference
#include <stdlib.h>
#include <string.h>
#include "FreeRTOS.h"
#include "task.h"
#include "timers.h"
#include "StackMacros.h"

Go to the source code of this file.

Data Structures

struct  tskTaskControlBlock
 

Macros

#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
 
#define tskIDLE_STACK_SIZE   configMINIMAL_STACK_SIZE
 
#define taskYIELD_IF_USING_PREEMPTION()
 
#define tskSTACK_FILL_BYTE   ( 0xa5U )
 
#define tskBLOCKED_CHAR   ( 'B' )
 
#define tskREADY_CHAR   ( 'R' )
 
#define tskDELETED_CHAR   ( 'D' )
 
#define tskSUSPENDED_CHAR   ( 'S' )
 
#define taskRECORD_READY_PRIORITY(uxPriority)
 
#define taskSELECT_HIGHEST_PRIORITY_TASK()
 
#define taskRESET_READY_PRIORITY(uxPriority)
 
#define portRESET_READY_PRIORITY(uxPriority, uxTopReadyPriority)
 
#define taskSWITCH_DELAYED_LISTS()
 
#define prvAddTaskToReadyList(pxTCB)
 
#define prvGetTCBFromHandle(pxHandle)   ( ( ( pxHandle ) == NULL ) ? ( TCB_t * ) pxCurrentTCB : ( TCB_t * ) ( pxHandle ) )
 
#define taskEVENT_LIST_ITEM_VALUE_IN_USE   0x80000000UL
 

Typedefs

typedef struct tskTaskControlBlock tskTCB
 
typedef tskTCB TCB_t
 

Enumerations

enum  eNotifyValue { eNotWaitingNotification = 0, eWaitingNotification, eNotified }
 

Functions

void vTaskStartScheduler (void)
 
void vTaskEndScheduler (void)
 
void vTaskSuspendAll (void)
 
BaseType_t xTaskResumeAll (void)
 
TickType_t xTaskGetTickCount (void)
 
TickType_t xTaskGetTickCountFromISR (void)
 
UBaseType_t uxTaskGetNumberOfTasks (void)
 
BaseType_t xTaskIncrementTick (void)
 
void vTaskSwitchContext (void)
 
void vTaskPlaceOnEventList (List_t *const pxEventList, const TickType_t xTicksToWait)
 
void vTaskPlaceOnUnorderedEventList (List_t *pxEventList, const TickType_t xItemValue, const TickType_t xTicksToWait)
 
BaseType_t xTaskRemoveFromEventList (const List_t *const pxEventList)
 
BaseType_t xTaskRemoveFromUnorderedEventList (ListItem_t *pxEventListItem, const TickType_t xItemValue)
 
void vTaskSetTimeOutState (TimeOut_t *const pxTimeOut)
 
BaseType_t xTaskCheckForTimeOut (TimeOut_t *const pxTimeOut, TickType_t *const pxTicksToWait)
 
void vTaskMissedYield (void)
 
TickType_t uxTaskResetEventItemValue (void)
 

Variables

PRIVILEGED_DATA TCB_t *volatile pxCurrentTCB = NULL
 

Macro Definition Documentation

#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE

Definition at line 77 of file tasks.c.

#define portRESET_READY_PRIORITY (   uxPriority,
  uxTopReadyPriority 
)

Definition at line 327 of file tasks.c.

#define prvAddTaskToReadyList (   pxTCB)
Value:
traceMOVED_TASK_TO_READY_STATE( pxTCB ); \
taskRECORD_READY_PRIORITY( ( pxTCB )->uxPriority ); \
vListInsertEnd( &( pxReadyTasksLists[ ( pxTCB )->uxPriority ] ), &( ( pxTCB )->xGenericListItem ) )
vListInsertEnd
void vListInsertEnd(List_t *const pxList, ListItem_t *const pxNewListItem) PRIVILEGED_FUNCTION
Definition: list.c:116
traceMOVED_TASK_TO_READY_STATE
#define traceMOVED_TASK_TO_READY_STATE(pxTCB)
Definition: FreeRTOS.h:410
taskRECORD_READY_PRIORITY
#define taskRECORD_READY_PRIORITY(uxPriority)
Definition: tasks.c:297

Definition at line 389 of file tasks.c.

#define prvGetTCBFromHandle (   pxHandle)    ( ( ( pxHandle ) == NULL ) ? ( TCB_t * ) pxCurrentTCB : ( TCB_t * ) ( pxHandle ) )

Definition at line 401 of file tasks.c.

#define taskEVENT_LIST_ITEM_VALUE_IN_USE   0x80000000UL

Definition at line 414 of file tasks.c.

#define taskRECORD_READY_PRIORITY (   uxPriority)
Value:
{ \
if( ( uxPriority ) > uxTopReadyPriority ) \
{ \
uxTopReadyPriority = ( uxPriority ); \
} \
} /* taskRECORD_READY_PRIORITY */
if
if(LCD_Lock==DISABLE)
Definition: lcd_log.c:249

Definition at line 297 of file tasks.c.

#define taskRESET_READY_PRIORITY (   uxPriority)

Definition at line 326 of file tasks.c.

#define taskSELECT_HIGHEST_PRIORITY_TASK ( )
Value:
{ \
/* Find the highest priority queue that contains ready tasks. */ \
while( listLIST_IS_EMPTY( &( pxReadyTasksLists[ uxTopReadyPriority ] ) ) ) \
{ \
configASSERT( uxTopReadyPriority ); \
--uxTopReadyPriority; \
} \
\
/* listGET_OWNER_OF_NEXT_ENTRY indexes through the list, so the tasks of \
the same priority get an equal share of the processor time. */ \
listGET_OWNER_OF_NEXT_ENTRY( pxCurrentTCB, &( pxReadyTasksLists[ uxTopReadyPriority ] ) ); \
} /* taskSELECT_HIGHEST_PRIORITY_TASK */
listGET_OWNER_OF_NEXT_ENTRY
#define listGET_OWNER_OF_NEXT_ENTRY(pxTCB, pxList)
Definition: list.h:318
pxCurrentTCB
PRIVILEGED_DATA TCB_t *volatile pxCurrentTCB
Definition: tasks.c:212
configASSERT
#define configASSERT(x)
Definition: FreeRTOSConfig.h:161
listLIST_IS_EMPTY
#define listLIST_IS_EMPTY(pxList)
Definition: list.h:291

Definition at line 307 of file tasks.c.

#define taskSWITCH_DELAYED_LISTS ( )
Value:
{ \
List_t *pxTemp; \
\
/* The delayed tasks list should be empty when the lists are switched. */ \
configASSERT( ( listLIST_IS_EMPTY( pxDelayedTaskList ) ) ); \
\
pxTemp = pxDelayedTaskList; \
pxDelayedTaskList = pxOverflowDelayedTaskList; \
pxOverflowDelayedTaskList = pxTemp; \
xNumOfOverflows++; \
prvResetNextTaskUnblockTime(); \
}
configASSERT
#define configASSERT(x)
Definition: FreeRTOSConfig.h:161
listLIST_IS_EMPTY
#define listLIST_IS_EMPTY(pxList)
Definition: list.h:291
List_t
struct xLIST List_t

Definition at line 369 of file tasks.c.

#define taskYIELD_IF_USING_PREEMPTION ( )

Definition at line 116 of file tasks.c.

#define tskBLOCKED_CHAR   ( 'B' )

Definition at line 282 of file tasks.c.

#define tskDELETED_CHAR   ( 'D' )

Definition at line 284 of file tasks.c.

#define tskIDLE_STACK_SIZE   configMINIMAL_STACK_SIZE

Definition at line 111 of file tasks.c.

#define tskREADY_CHAR   ( 'R' )

Definition at line 283 of file tasks.c.

#define tskSTACK_FILL_BYTE   ( 0xa5U )

Definition at line 277 of file tasks.c.

#define tskSUSPENDED_CHAR   ( 'S' )

Definition at line 285 of file tasks.c.

Typedef Documentation

typedef tskTCB TCB_t

Definition at line 199 of file tasks.c.

typedef struct tskTaskControlBlock tskTCB

Enumeration Type Documentation

enum eNotifyValue
Enumerator
eNotWaitingNotification 
eWaitingNotification 
eNotified 

Definition at line 122 of file tasks.c.

Function Documentation

UBaseType_t uxTaskGetNumberOfTasks ( void  )

Definition at line 1810 of file tasks.c.

TickType_t uxTaskResetEventItemValue ( void  )

Definition at line 3868 of file tasks.c.

void vTaskEndScheduler ( void  )

Definition at line 1622 of file tasks.c.

void vTaskMissedYield ( void  )

Definition at line 2635 of file tasks.c.

void vTaskPlaceOnEventList ( List_t *const  pxEventList,
const TickType_t  xTicksToWait 
)

Definition at line 2262 of file tasks.c.

void vTaskPlaceOnUnorderedEventList ( List_t *  pxEventList,
const TickType_t  xItemValue,
const TickType_t  xTicksToWait 
)

Definition at line 2321 of file tasks.c.

void vTaskSetTimeOutState ( TimeOut_t *const  pxTimeOut)

Definition at line 2578 of file tasks.c.

void vTaskStartScheduler ( void  )

Definition at line 1543 of file tasks.c.

void vTaskSuspendAll ( void  )

Definition at line 1633 of file tasks.c.

void vTaskSwitchContext ( void  )

Definition at line 2203 of file tasks.c.

BaseType_t xTaskCheckForTimeOut ( TimeOut_t *const  pxTimeOut,
TickType_t *const  pxTicksToWait 
)

Definition at line 2586 of file tasks.c.

TickType_t xTaskGetTickCount ( void  )

Definition at line 1764 of file tasks.c.

TickType_t xTaskGetTickCountFromISR ( void  )

Definition at line 1779 of file tasks.c.

BaseType_t xTaskIncrementTick ( void  )

Definition at line 1939 of file tasks.c.

BaseType_t xTaskRemoveFromEventList ( const List_t *const  pxEventList)

Definition at line 2465 of file tasks.c.

BaseType_t xTaskRemoveFromUnorderedEventList ( ListItem_t *  pxEventListItem,
const TickType_t  xItemValue 
)

Definition at line 2533 of file tasks.c.

BaseType_t xTaskResumeAll ( void  )

Definition at line 1671 of file tasks.c.

Variable Documentation

PRIVILEGED_DATA TCB_t* volatile pxCurrentTCB = NULL

Definition at line 212 of file tasks.c.

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