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- /*
- * FreeRTOS Kernel V10.0.1
- * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of
- * this software and associated documentation files (the "Software"), to deal in
- * the Software without restriction, including without limitation the rights to
- * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
- * the Software, and to permit persons to whom the Software is furnished to do so,
- * subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
- * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
- * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * http://www.FreeRTOS.org
- * http://aws.amazon.com/freertos
- *
- * 1 tab == 4 spaces!
- */
- /* Standard includes. */
- #include <stdlib.h>
- /* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining
- all the API functions to use the MPU wrappers. That should only be done when
- task.h is included from an application file. */
- #define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
- /* FreeRTOS includes. */
- #include "FreeRTOS.h"
- #include "task.h"
- #include "timers.h"
- #include "event_groups.h"
- /* Lint e961 and e750 are suppressed as a MISRA exception justified because the
- MPU ports require MPU_WRAPPERS_INCLUDED_FROM_API_FILE to be defined for the
- header files above, but not in this file, in order to generate the correct
- privileged Vs unprivileged linkage and placement. */
- #undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE /*lint !e961 !e750. */
- /* The following bit fields convey control information in a task's event list
- item value. It is important they don't clash with the
- taskEVENT_LIST_ITEM_VALUE_IN_USE definition. */
- #if configUSE_16_BIT_TICKS == 1
- #define eventCLEAR_EVENTS_ON_EXIT_BIT 0x0100U
- #define eventUNBLOCKED_DUE_TO_BIT_SET 0x0200U
- #define eventWAIT_FOR_ALL_BITS 0x0400U
- #define eventEVENT_BITS_CONTROL_BYTES 0xff00U
- #else
- #define eventCLEAR_EVENTS_ON_EXIT_BIT 0x01000000UL
- #define eventUNBLOCKED_DUE_TO_BIT_SET 0x02000000UL
- #define eventWAIT_FOR_ALL_BITS 0x04000000UL
- #define eventEVENT_BITS_CONTROL_BYTES 0xff000000UL
- #endif
- typedef struct xEventGroupDefinition
- {
- EventBits_t uxEventBits;
- List_t xTasksWaitingForBits; /*< List of tasks waiting for a bit to be set. */
- #if( configUSE_TRACE_FACILITY == 1 )
- UBaseType_t uxEventGroupNumber;
- #endif
- #if( ( configSUPPORT_STATIC_ALLOCATION == 1 ) && ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) )
- uint8_t ucStaticallyAllocated; /*< Set to pdTRUE if the event group is statically allocated to ensure no attempt is made to free the memory. */
- #endif
- } EventGroup_t;
- /*-----------------------------------------------------------*/
- /*
- * Test the bits set in uxCurrentEventBits to see if the wait condition is met.
- * The wait condition is defined by xWaitForAllBits. If xWaitForAllBits is
- * pdTRUE then the wait condition is met if all the bits set in uxBitsToWaitFor
- * are also set in uxCurrentEventBits. If xWaitForAllBits is pdFALSE then the
- * wait condition is met if any of the bits set in uxBitsToWait for are also set
- * in uxCurrentEventBits.
- */
- static BaseType_t prvTestWaitCondition( const EventBits_t uxCurrentEventBits, const EventBits_t uxBitsToWaitFor, const BaseType_t xWaitForAllBits ) PRIVILEGED_FUNCTION;
- /*-----------------------------------------------------------*/
- #if( configSUPPORT_STATIC_ALLOCATION == 1 )
- EventGroupHandle_t xEventGroupCreateStatic( StaticEventGroup_t *pxEventGroupBuffer )
- {
- EventGroup_t *pxEventBits;
- /* A StaticEventGroup_t object must be provided. */
- configASSERT( pxEventGroupBuffer );
- #if( configASSERT_DEFINED == 1 )
- {
- /* Sanity check that the size of the structure used to declare a
- variable of type StaticEventGroup_t equals the size of the real
- event group structure. */
- volatile size_t xSize = sizeof( StaticEventGroup_t );
- configASSERT( xSize == sizeof( EventGroup_t ) );
- }
- #endif /* configASSERT_DEFINED */
- /* The user has provided a statically allocated event group - use it. */
- pxEventBits = ( EventGroup_t * ) pxEventGroupBuffer; /*lint !e740 EventGroup_t and StaticEventGroup_t are guaranteed to have the same size and alignment requirement - checked by configASSERT(). */
- if( pxEventBits != NULL )
- {
- pxEventBits->uxEventBits = 0;
- vListInitialise( &( pxEventBits->xTasksWaitingForBits ) );
- #if( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
- {
- /* Both static and dynamic allocation can be used, so note that
- this event group was created statically in case the event group
- is later deleted. */
- pxEventBits->ucStaticallyAllocated = pdTRUE;
- }
- #endif /* configSUPPORT_DYNAMIC_ALLOCATION */
- traceEVENT_GROUP_CREATE( pxEventBits );
- }
- else
- {
- traceEVENT_GROUP_CREATE_FAILED();
- }
- return ( EventGroupHandle_t ) pxEventBits;
- }
- #endif /* configSUPPORT_STATIC_ALLOCATION */
- /*-----------------------------------------------------------*/
- #if( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
- EventGroupHandle_t xEventGroupCreate( void )
- {
- EventGroup_t *pxEventBits;
- /* Allocate the event group. */
- pxEventBits = ( EventGroup_t * ) pvPortMalloc( sizeof( EventGroup_t ) );
- if( pxEventBits != NULL )
- {
- pxEventBits->uxEventBits = 0;
- vListInitialise( &( pxEventBits->xTasksWaitingForBits ) );
- #if( configSUPPORT_STATIC_ALLOCATION == 1 )
- {
- /* Both static and dynamic allocation can be used, so note this
- event group was allocated statically in case the event group is
- later deleted. */
- pxEventBits->ucStaticallyAllocated = pdFALSE;
- }
- #endif /* configSUPPORT_STATIC_ALLOCATION */
- traceEVENT_GROUP_CREATE( pxEventBits );
- }
- else
- {
- traceEVENT_GROUP_CREATE_FAILED();
- }
- return ( EventGroupHandle_t ) pxEventBits;
- }
- #endif /* configSUPPORT_DYNAMIC_ALLOCATION */
- /*-----------------------------------------------------------*/
- EventBits_t xEventGroupSync( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet, const EventBits_t uxBitsToWaitFor, TickType_t xTicksToWait )
- {
- EventBits_t uxOriginalBitValue, uxReturn;
- EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;
- BaseType_t xAlreadyYielded;
- BaseType_t xTimeoutOccurred = pdFALSE;
- configASSERT( ( uxBitsToWaitFor & eventEVENT_BITS_CONTROL_BYTES ) == 0 );
- configASSERT( uxBitsToWaitFor != 0 );
- #if ( ( INCLUDE_xTaskGetSchedulerState == 1 ) || ( configUSE_TIMERS == 1 ) )
- {
- configASSERT( !( ( xTaskGetSchedulerState() == taskSCHEDULER_SUSPENDED ) && ( xTicksToWait != 0 ) ) );
- }
- #endif
- vTaskSuspendAll();
- {
- uxOriginalBitValue = pxEventBits->uxEventBits;
- ( void ) xEventGroupSetBits( xEventGroup, uxBitsToSet );
- if( ( ( uxOriginalBitValue | uxBitsToSet ) & uxBitsToWaitFor ) == uxBitsToWaitFor )
- {
- /* All the rendezvous bits are now set - no need to block. */
- uxReturn = ( uxOriginalBitValue | uxBitsToSet );
- /* Rendezvous always clear the bits. They will have been cleared
- already unless this is the only task in the rendezvous. */
- pxEventBits->uxEventBits &= ~uxBitsToWaitFor;
- xTicksToWait = 0;
- }
- else
- {
- if( xTicksToWait != ( TickType_t ) 0 )
- {
- traceEVENT_GROUP_SYNC_BLOCK( xEventGroup, uxBitsToSet, uxBitsToWaitFor );
- /* Store the bits that the calling task is waiting for in the
- task's event list item so the kernel knows when a match is
- found. Then enter the blocked state. */
- vTaskPlaceOnUnorderedEventList( &( pxEventBits->xTasksWaitingForBits ), ( uxBitsToWaitFor | eventCLEAR_EVENTS_ON_EXIT_BIT | eventWAIT_FOR_ALL_BITS ), xTicksToWait );
- /* This assignment is obsolete as uxReturn will get set after
- the task unblocks, but some compilers mistakenly generate a
- warning about uxReturn being returned without being set if the
- assignment is omitted. */
- uxReturn = 0;
- }
- else
- {
- /* The rendezvous bits were not set, but no block time was
- specified - just return the current event bit value. */
- uxReturn = pxEventBits->uxEventBits;
- xTimeoutOccurred = pdTRUE;
- }
- }
- }
- xAlreadyYielded = xTaskResumeAll();
- if( xTicksToWait != ( TickType_t ) 0 )
- {
- if( xAlreadyYielded == pdFALSE )
- {
- portYIELD_WITHIN_API();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- /* The task blocked to wait for its required bits to be set - at this
- point either the required bits were set or the block time expired. If
- the required bits were set they will have been stored in the task's
- event list item, and they should now be retrieved then cleared. */
- uxReturn = uxTaskResetEventItemValue();
- if( ( uxReturn & eventUNBLOCKED_DUE_TO_BIT_SET ) == ( EventBits_t ) 0 )
- {
- /* The task timed out, just return the current event bit value. */
- taskENTER_CRITICAL();
- {
- uxReturn = pxEventBits->uxEventBits;
- /* Although the task got here because it timed out before the
- bits it was waiting for were set, it is possible that since it
- unblocked another task has set the bits. If this is the case
- then it needs to clear the bits before exiting. */
- if( ( uxReturn & uxBitsToWaitFor ) == uxBitsToWaitFor )
- {
- pxEventBits->uxEventBits &= ~uxBitsToWaitFor;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- taskEXIT_CRITICAL();
- xTimeoutOccurred = pdTRUE;
- }
- else
- {
- /* The task unblocked because the bits were set. */
- }
- /* Control bits might be set as the task had blocked should not be
- returned. */
- uxReturn &= ~eventEVENT_BITS_CONTROL_BYTES;
- }
- traceEVENT_GROUP_SYNC_END( xEventGroup, uxBitsToSet, uxBitsToWaitFor, xTimeoutOccurred );
- /* Prevent compiler warnings when trace macros are not used. */
- ( void ) xTimeoutOccurred;
- return uxReturn;
- }
- /*-----------------------------------------------------------*/
- EventBits_t xEventGroupWaitBits( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToWaitFor, const BaseType_t xClearOnExit, const BaseType_t xWaitForAllBits, TickType_t xTicksToWait )
- {
- EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;
- EventBits_t uxReturn, uxControlBits = 0;
- BaseType_t xWaitConditionMet, xAlreadyYielded;
- BaseType_t xTimeoutOccurred = pdFALSE;
- /* Check the user is not attempting to wait on the bits used by the kernel
- itself, and that at least one bit is being requested. */
- configASSERT( xEventGroup );
- configASSERT( ( uxBitsToWaitFor & eventEVENT_BITS_CONTROL_BYTES ) == 0 );
- configASSERT( uxBitsToWaitFor != 0 );
- #if ( ( INCLUDE_xTaskGetSchedulerState == 1 ) || ( configUSE_TIMERS == 1 ) )
- {
- configASSERT( !( ( xTaskGetSchedulerState() == taskSCHEDULER_SUSPENDED ) && ( xTicksToWait != 0 ) ) );
- }
- #endif
- vTaskSuspendAll();
- {
- const EventBits_t uxCurrentEventBits = pxEventBits->uxEventBits;
- /* Check to see if the wait condition is already met or not. */
- xWaitConditionMet = prvTestWaitCondition( uxCurrentEventBits, uxBitsToWaitFor, xWaitForAllBits );
- if( xWaitConditionMet != pdFALSE )
- {
- /* The wait condition has already been met so there is no need to
- block. */
- uxReturn = uxCurrentEventBits;
- xTicksToWait = ( TickType_t ) 0;
- /* Clear the wait bits if requested to do so. */
- if( xClearOnExit != pdFALSE )
- {
- pxEventBits->uxEventBits &= ~uxBitsToWaitFor;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else if( xTicksToWait == ( TickType_t ) 0 )
- {
- /* The wait condition has not been met, but no block time was
- specified, so just return the current value. */
- uxReturn = uxCurrentEventBits;
- xTimeoutOccurred = pdTRUE;
- }
- else
- {
- /* The task is going to block to wait for its required bits to be
- set. uxControlBits are used to remember the specified behaviour of
- this call to xEventGroupWaitBits() - for use when the event bits
- unblock the task. */
- if( xClearOnExit != pdFALSE )
- {
- uxControlBits |= eventCLEAR_EVENTS_ON_EXIT_BIT;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- if( xWaitForAllBits != pdFALSE )
- {
- uxControlBits |= eventWAIT_FOR_ALL_BITS;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- /* Store the bits that the calling task is waiting for in the
- task's event list item so the kernel knows when a match is
- found. Then enter the blocked state. */
- vTaskPlaceOnUnorderedEventList( &( pxEventBits->xTasksWaitingForBits ), ( uxBitsToWaitFor | uxControlBits ), xTicksToWait );
- /* This is obsolete as it will get set after the task unblocks, but
- some compilers mistakenly generate a warning about the variable
- being returned without being set if it is not done. */
- uxReturn = 0;
- traceEVENT_GROUP_WAIT_BITS_BLOCK( xEventGroup, uxBitsToWaitFor );
- }
- }
- xAlreadyYielded = xTaskResumeAll();
- if( xTicksToWait != ( TickType_t ) 0 )
- {
- if( xAlreadyYielded == pdFALSE )
- {
- portYIELD_WITHIN_API();
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- /* The task blocked to wait for its required bits to be set - at this
- point either the required bits were set or the block time expired. If
- the required bits were set they will have been stored in the task's
- event list item, and they should now be retrieved then cleared. */
- uxReturn = uxTaskResetEventItemValue();
- if( ( uxReturn & eventUNBLOCKED_DUE_TO_BIT_SET ) == ( EventBits_t ) 0 )
- {
- taskENTER_CRITICAL();
- {
- /* The task timed out, just return the current event bit value. */
- uxReturn = pxEventBits->uxEventBits;
- /* It is possible that the event bits were updated between this
- task leaving the Blocked state and running again. */
- if( prvTestWaitCondition( uxReturn, uxBitsToWaitFor, xWaitForAllBits ) != pdFALSE )
- {
- if( xClearOnExit != pdFALSE )
- {
- pxEventBits->uxEventBits &= ~uxBitsToWaitFor;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- xTimeoutOccurred = pdTRUE;
- }
- taskEXIT_CRITICAL();
- }
- else
- {
- /* The task unblocked because the bits were set. */
- }
- /* The task blocked so control bits may have been set. */
- uxReturn &= ~eventEVENT_BITS_CONTROL_BYTES;
- }
- traceEVENT_GROUP_WAIT_BITS_END( xEventGroup, uxBitsToWaitFor, xTimeoutOccurred );
- /* Prevent compiler warnings when trace macros are not used. */
- ( void ) xTimeoutOccurred;
- return uxReturn;
- }
- /*-----------------------------------------------------------*/
- EventBits_t xEventGroupClearBits( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToClear )
- {
- EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;
- EventBits_t uxReturn;
- /* Check the user is not attempting to clear the bits used by the kernel
- itself. */
- configASSERT( xEventGroup );
- configASSERT( ( uxBitsToClear & eventEVENT_BITS_CONTROL_BYTES ) == 0 );
- taskENTER_CRITICAL();
- {
- traceEVENT_GROUP_CLEAR_BITS( xEventGroup, uxBitsToClear );
- /* The value returned is the event group value prior to the bits being
- cleared. */
- uxReturn = pxEventBits->uxEventBits;
- /* Clear the bits. */
- pxEventBits->uxEventBits &= ~uxBitsToClear;
- }
- taskEXIT_CRITICAL();
- return uxReturn;
- }
- /*-----------------------------------------------------------*/
- #if ( ( configUSE_TRACE_FACILITY == 1 ) && ( INCLUDE_xTimerPendFunctionCall == 1 ) && ( configUSE_TIMERS == 1 ) )
- BaseType_t xEventGroupClearBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToClear )
- {
- BaseType_t xReturn;
- traceEVENT_GROUP_CLEAR_BITS_FROM_ISR( xEventGroup, uxBitsToClear );
- xReturn = xTimerPendFunctionCallFromISR( vEventGroupClearBitsCallback, ( void * ) xEventGroup, ( uint32_t ) uxBitsToClear, NULL );
- return xReturn;
- }
- #endif
- /*-----------------------------------------------------------*/
- EventBits_t xEventGroupGetBitsFromISR( EventGroupHandle_t xEventGroup )
- {
- UBaseType_t uxSavedInterruptStatus;
- EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;
- EventBits_t uxReturn;
- uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();
- {
- uxReturn = pxEventBits->uxEventBits;
- }
- portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
- return uxReturn;
- }
- /*-----------------------------------------------------------*/
- EventBits_t xEventGroupSetBits( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet )
- {
- ListItem_t *pxListItem, *pxNext;
- ListItem_t const *pxListEnd;
- List_t *pxList;
- EventBits_t uxBitsToClear = 0, uxBitsWaitedFor, uxControlBits;
- EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;
- BaseType_t xMatchFound = pdFALSE;
- /* Check the user is not attempting to set the bits used by the kernel
- itself. */
- configASSERT( xEventGroup );
- configASSERT( ( uxBitsToSet & eventEVENT_BITS_CONTROL_BYTES ) == 0 );
- pxList = &( pxEventBits->xTasksWaitingForBits );
- pxListEnd = listGET_END_MARKER( pxList ); /*lint !e826 !e740 The mini list structure is used as the list end to save RAM. This is checked and valid. */
- vTaskSuspendAll();
- {
- traceEVENT_GROUP_SET_BITS( xEventGroup, uxBitsToSet );
- pxListItem = listGET_HEAD_ENTRY( pxList );
- /* Set the bits. */
- pxEventBits->uxEventBits |= uxBitsToSet;
- /* See if the new bit value should unblock any tasks. */
- while( pxListItem != pxListEnd )
- {
- pxNext = listGET_NEXT( pxListItem );
- uxBitsWaitedFor = listGET_LIST_ITEM_VALUE( pxListItem );
- xMatchFound = pdFALSE;
- /* Split the bits waited for from the control bits. */
- uxControlBits = uxBitsWaitedFor & eventEVENT_BITS_CONTROL_BYTES;
- uxBitsWaitedFor &= ~eventEVENT_BITS_CONTROL_BYTES;
- if( ( uxControlBits & eventWAIT_FOR_ALL_BITS ) == ( EventBits_t ) 0 )
- {
- /* Just looking for single bit being set. */
- if( ( uxBitsWaitedFor & pxEventBits->uxEventBits ) != ( EventBits_t ) 0 )
- {
- xMatchFound = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else if( ( uxBitsWaitedFor & pxEventBits->uxEventBits ) == uxBitsWaitedFor )
- {
- /* All bits are set. */
- xMatchFound = pdTRUE;
- }
- else
- {
- /* Need all bits to be set, but not all the bits were set. */
- }
- if( xMatchFound != pdFALSE )
- {
- /* The bits match. Should the bits be cleared on exit? */
- if( ( uxControlBits & eventCLEAR_EVENTS_ON_EXIT_BIT ) != ( EventBits_t ) 0 )
- {
- uxBitsToClear |= uxBitsWaitedFor;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- /* Store the actual event flag value in the task's event list
- item before removing the task from the event list. The
- eventUNBLOCKED_DUE_TO_BIT_SET bit is set so the task knows
- that is was unblocked due to its required bits matching, rather
- than because it timed out. */
- vTaskRemoveFromUnorderedEventList( pxListItem, pxEventBits->uxEventBits | eventUNBLOCKED_DUE_TO_BIT_SET );
- }
- /* Move onto the next list item. Note pxListItem->pxNext is not
- used here as the list item may have been removed from the event list
- and inserted into the ready/pending reading list. */
- pxListItem = pxNext;
- }
- /* Clear any bits that matched when the eventCLEAR_EVENTS_ON_EXIT_BIT
- bit was set in the control word. */
- pxEventBits->uxEventBits &= ~uxBitsToClear;
- }
- ( void ) xTaskResumeAll();
- return pxEventBits->uxEventBits;
- }
- /*-----------------------------------------------------------*/
- void vEventGroupDelete( EventGroupHandle_t xEventGroup )
- {
- EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;
- const List_t *pxTasksWaitingForBits = &( pxEventBits->xTasksWaitingForBits );
- vTaskSuspendAll();
- {
- traceEVENT_GROUP_DELETE( xEventGroup );
- while( listCURRENT_LIST_LENGTH( pxTasksWaitingForBits ) > ( UBaseType_t ) 0 )
- {
- /* Unblock the task, returning 0 as the event list is being deleted
- and cannot therefore have any bits set. */
- configASSERT( pxTasksWaitingForBits->xListEnd.pxNext != ( const ListItem_t * ) &( pxTasksWaitingForBits->xListEnd ) );
- vTaskRemoveFromUnorderedEventList( pxTasksWaitingForBits->xListEnd.pxNext, eventUNBLOCKED_DUE_TO_BIT_SET );
- }
- #if( ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) && ( configSUPPORT_STATIC_ALLOCATION == 0 ) )
- {
- /* The event group can only have been allocated dynamically - free
- it again. */
- vPortFree( pxEventBits );
- }
- #elif( ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) && ( configSUPPORT_STATIC_ALLOCATION == 1 ) )
- {
- /* The event group could have been allocated statically or
- dynamically, so check before attempting to free the memory. */
- if( pxEventBits->ucStaticallyAllocated == ( uint8_t ) pdFALSE )
- {
- vPortFree( pxEventBits );
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- #endif /* configSUPPORT_DYNAMIC_ALLOCATION */
- }
- ( void ) xTaskResumeAll();
- }
- /*-----------------------------------------------------------*/
- /* For internal use only - execute a 'set bits' command that was pended from
- an interrupt. */
- void vEventGroupSetBitsCallback( void *pvEventGroup, const uint32_t ulBitsToSet )
- {
- ( void ) xEventGroupSetBits( pvEventGroup, ( EventBits_t ) ulBitsToSet );
- }
- /*-----------------------------------------------------------*/
- /* For internal use only - execute a 'clear bits' command that was pended from
- an interrupt. */
- void vEventGroupClearBitsCallback( void *pvEventGroup, const uint32_t ulBitsToClear )
- {
- ( void ) xEventGroupClearBits( pvEventGroup, ( EventBits_t ) ulBitsToClear );
- }
- /*-----------------------------------------------------------*/
- static BaseType_t prvTestWaitCondition( const EventBits_t uxCurrentEventBits, const EventBits_t uxBitsToWaitFor, const BaseType_t xWaitForAllBits )
- {
- BaseType_t xWaitConditionMet = pdFALSE;
- if( xWaitForAllBits == pdFALSE )
- {
- /* Task only has to wait for one bit within uxBitsToWaitFor to be
- set. Is one already set? */
- if( ( uxCurrentEventBits & uxBitsToWaitFor ) != ( EventBits_t ) 0 )
- {
- xWaitConditionMet = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- else
- {
- /* Task has to wait for all the bits in uxBitsToWaitFor to be set.
- Are they set already? */
- if( ( uxCurrentEventBits & uxBitsToWaitFor ) == uxBitsToWaitFor )
- {
- xWaitConditionMet = pdTRUE;
- }
- else
- {
- mtCOVERAGE_TEST_MARKER();
- }
- }
- return xWaitConditionMet;
- }
- /*-----------------------------------------------------------*/
- #if ( ( configUSE_TRACE_FACILITY == 1 ) && ( INCLUDE_xTimerPendFunctionCall == 1 ) && ( configUSE_TIMERS == 1 ) )
- BaseType_t xEventGroupSetBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet, BaseType_t *pxHigherPriorityTaskWoken )
- {
- BaseType_t xReturn;
- traceEVENT_GROUP_SET_BITS_FROM_ISR( xEventGroup, uxBitsToSet );
- xReturn = xTimerPendFunctionCallFromISR( vEventGroupSetBitsCallback, ( void * ) xEventGroup, ( uint32_t ) uxBitsToSet, pxHigherPriorityTaskWoken );
- return xReturn;
- }
- #endif
- /*-----------------------------------------------------------*/
- #if (configUSE_TRACE_FACILITY == 1)
- UBaseType_t uxEventGroupGetNumber( void* xEventGroup )
- {
- UBaseType_t xReturn;
- EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;
- if( xEventGroup == NULL )
- {
- xReturn = 0;
- }
- else
- {
- xReturn = pxEventBits->uxEventGroupNumber;
- }
- return xReturn;
- }
- #endif /* configUSE_TRACE_FACILITY */
- /*-----------------------------------------------------------*/
- #if ( configUSE_TRACE_FACILITY == 1 )
- void vEventGroupSetNumber( void * xEventGroup, UBaseType_t uxEventGroupNumber )
- {
- ( ( EventGroup_t * ) xEventGroup )->uxEventGroupNumber = uxEventGroupNumber;
- }
- #endif /* configUSE_TRACE_FACILITY */
- /*-----------------------------------------------------------*/
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