2 FreeRTOS V8.2.3 - Copyright (C) 2015 Real Time Engineers Ltd.
\r
5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
\r
7 This file is part of the FreeRTOS distribution.
\r
9 FreeRTOS is free software; you can redistribute it and/or modify it under
\r
10 the terms of the GNU General Public License (version 2) as published by the
\r
11 Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.
\r
13 ***************************************************************************
\r
14 >>! NOTE: The modification to the GPL is included to allow you to !<<
\r
15 >>! distribute a combined work that includes FreeRTOS without being !<<
\r
16 >>! obliged to provide the source code for proprietary components !<<
\r
17 >>! outside of the FreeRTOS kernel. !<<
\r
18 ***************************************************************************
\r
20 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
\r
21 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
\r
22 FOR A PARTICULAR PURPOSE. Full license text is available on the following
\r
23 link: http://www.freertos.org/a00114.html
\r
25 ***************************************************************************
\r
27 * FreeRTOS provides completely free yet professionally developed, *
\r
28 * robust, strictly quality controlled, supported, and cross *
\r
29 * platform software that is more than just the market leader, it *
\r
30 * is the industry's de facto standard. *
\r
32 * Help yourself get started quickly while simultaneously helping *
\r
33 * to support the FreeRTOS project by purchasing a FreeRTOS *
\r
34 * tutorial book, reference manual, or both: *
\r
35 * http://www.FreeRTOS.org/Documentation *
\r
37 ***************************************************************************
\r
39 http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
\r
40 the FAQ page "My application does not run, what could be wrong?". Have you
\r
41 defined configASSERT()?
\r
43 http://www.FreeRTOS.org/support - In return for receiving this top quality
\r
44 embedded software for free we request you assist our global community by
\r
45 participating in the support forum.
\r
47 http://www.FreeRTOS.org/training - Investing in training allows your team to
\r
48 be as productive as possible as early as possible. Now you can receive
\r
49 FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
\r
50 Ltd, and the world's leading authority on the world's leading RTOS.
\r
52 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
\r
53 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
\r
54 compatible FAT file system, and our tiny thread aware UDP/IP stack.
\r
56 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
\r
57 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
\r
59 http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
\r
60 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
\r
61 licenses offer ticketed support, indemnification and commercial middleware.
\r
63 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
\r
64 engineered and independently SIL3 certified version for use in safety and
\r
65 mission critical applications that require provable dependability.
\r
70 /* Standard includes. */
\r
73 /* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining
\r
74 all the API functions to use the MPU wrappers. That should only be done when
\r
75 task.h is included from an application file. */
\r
76 #define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
\r
78 /* FreeRTOS includes. */
\r
79 #include "FreeRTOS.h"
\r
82 #include "event_groups.h"
\r
84 /* Lint e961 and e750 are suppressed as a MISRA exception justified because the
\r
85 MPU ports require MPU_WRAPPERS_INCLUDED_FROM_API_FILE to be defined for the
\r
86 header files above, but not in this file, in order to generate the correct
\r
87 privileged Vs unprivileged linkage and placement. */
\r
88 #undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE /*lint !e961 !e750. */
\r
90 #if ( INCLUDE_xEventGroupSetBitFromISR == 1 ) && ( configUSE_TIMERS == 0 )
\r
91 #error configUSE_TIMERS must be set to 1 to make the xEventGroupSetBitFromISR() function available.
\r
94 #if ( INCLUDE_xEventGroupSetBitFromISR == 1 ) && ( INCLUDE_xTimerPendFunctionCall == 0 )
\r
95 #error INCLUDE_xTimerPendFunctionCall must also be set to one to make the xEventGroupSetBitFromISR() function available.
\r
98 /* The following bit fields convey control information in a task's event list
\r
99 item value. It is important they don't clash with the
\r
100 taskEVENT_LIST_ITEM_VALUE_IN_USE definition. */
\r
101 #if configUSE_16_BIT_TICKS == 1
\r
102 #define eventCLEAR_EVENTS_ON_EXIT_BIT 0x0100U
\r
103 #define eventUNBLOCKED_DUE_TO_BIT_SET 0x0200U
\r
104 #define eventWAIT_FOR_ALL_BITS 0x0400U
\r
105 #define eventEVENT_BITS_CONTROL_BYTES 0xff00U
\r
107 #define eventCLEAR_EVENTS_ON_EXIT_BIT 0x01000000UL
\r
108 #define eventUNBLOCKED_DUE_TO_BIT_SET 0x02000000UL
\r
109 #define eventWAIT_FOR_ALL_BITS 0x04000000UL
\r
110 #define eventEVENT_BITS_CONTROL_BYTES 0xff000000UL
\r
113 typedef struct xEventGroupDefinition
\r
115 EventBits_t uxEventBits;
\r
116 List_t xTasksWaitingForBits; /*< List of tasks waiting for a bit to be set. */
\r
118 #if( configUSE_TRACE_FACILITY == 1 )
\r
119 UBaseType_t uxEventGroupNumber;
\r
124 /*-----------------------------------------------------------*/
\r
127 * Test the bits set in uxCurrentEventBits to see if the wait condition is met.
\r
128 * The wait condition is defined by xWaitForAllBits. If xWaitForAllBits is
\r
129 * pdTRUE then the wait condition is met if all the bits set in uxBitsToWaitFor
\r
130 * are also set in uxCurrentEventBits. If xWaitForAllBits is pdFALSE then the
\r
131 * wait condition is met if any of the bits set in uxBitsToWait for are also set
\r
132 * in uxCurrentEventBits.
\r
134 static BaseType_t prvTestWaitCondition( const EventBits_t uxCurrentEventBits, const EventBits_t uxBitsToWaitFor, const BaseType_t xWaitForAllBits );
\r
136 /*-----------------------------------------------------------*/
\r
138 EventGroupHandle_t xEventGroupCreate( void )
\r
140 EventGroup_t *pxEventBits;
\r
142 pxEventBits = ( EventGroup_t * ) pvPortMalloc( sizeof( EventGroup_t ) );
\r
143 if( pxEventBits != NULL )
\r
145 pxEventBits->uxEventBits = 0;
\r
146 vListInitialise( &( pxEventBits->xTasksWaitingForBits ) );
\r
147 traceEVENT_GROUP_CREATE( pxEventBits );
\r
151 traceEVENT_GROUP_CREATE_FAILED();
\r
154 return ( EventGroupHandle_t ) pxEventBits;
\r
156 /*-----------------------------------------------------------*/
\r
158 EventBits_t xEventGroupSync( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet, const EventBits_t uxBitsToWaitFor, TickType_t xTicksToWait )
\r
160 EventBits_t uxOriginalBitValue, uxReturn;
\r
161 EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;
\r
162 BaseType_t xAlreadyYielded;
\r
163 BaseType_t xTimeoutOccurred = pdFALSE;
\r
165 configASSERT( ( uxBitsToWaitFor & eventEVENT_BITS_CONTROL_BYTES ) == 0 );
\r
166 configASSERT( uxBitsToWaitFor != 0 );
\r
167 #if ( ( INCLUDE_xTaskGetSchedulerState == 1 ) || ( configUSE_TIMERS == 1 ) )
\r
169 configASSERT( !( ( xTaskGetSchedulerState() == taskSCHEDULER_SUSPENDED ) && ( xTicksToWait != 0 ) ) );
\r
175 uxOriginalBitValue = pxEventBits->uxEventBits;
\r
177 ( void ) xEventGroupSetBits( xEventGroup, uxBitsToSet );
\r
179 if( ( ( uxOriginalBitValue | uxBitsToSet ) & uxBitsToWaitFor ) == uxBitsToWaitFor )
\r
181 /* All the rendezvous bits are now set - no need to block. */
\r
182 uxReturn = ( uxOriginalBitValue | uxBitsToSet );
\r
184 /* Rendezvous always clear the bits. They will have been cleared
\r
185 already unless this is the only task in the rendezvous. */
\r
186 pxEventBits->uxEventBits &= ~uxBitsToWaitFor;
\r
192 if( xTicksToWait != ( TickType_t ) 0 )
\r
194 traceEVENT_GROUP_SYNC_BLOCK( xEventGroup, uxBitsToSet, uxBitsToWaitFor );
\r
196 /* Store the bits that the calling task is waiting for in the
\r
197 task's event list item so the kernel knows when a match is
\r
198 found. Then enter the blocked state. */
\r
199 vTaskPlaceOnUnorderedEventList( &( pxEventBits->xTasksWaitingForBits ), ( uxBitsToWaitFor | eventCLEAR_EVENTS_ON_EXIT_BIT | eventWAIT_FOR_ALL_BITS ), xTicksToWait );
\r
201 /* This assignment is obsolete as uxReturn will get set after
\r
202 the task unblocks, but some compilers mistakenly generate a
\r
203 warning about uxReturn being returned without being set if the
\r
204 assignment is omitted. */
\r
209 /* The rendezvous bits were not set, but no block time was
\r
210 specified - just return the current event bit value. */
\r
211 uxReturn = pxEventBits->uxEventBits;
\r
215 xAlreadyYielded = xTaskResumeAll();
\r
217 if( xTicksToWait != ( TickType_t ) 0 )
\r
219 if( xAlreadyYielded == pdFALSE )
\r
221 portYIELD_WITHIN_API();
\r
225 mtCOVERAGE_TEST_MARKER();
\r
228 /* The task blocked to wait for its required bits to be set - at this
\r
229 point either the required bits were set or the block time expired. If
\r
230 the required bits were set they will have been stored in the task's
\r
231 event list item, and they should now be retrieved then cleared. */
\r
232 uxReturn = uxTaskResetEventItemValue();
\r
234 if( ( uxReturn & eventUNBLOCKED_DUE_TO_BIT_SET ) == ( EventBits_t ) 0 )
\r
236 /* The task timed out, just return the current event bit value. */
\r
237 taskENTER_CRITICAL();
\r
239 uxReturn = pxEventBits->uxEventBits;
\r
241 /* Although the task got here because it timed out before the
\r
242 bits it was waiting for were set, it is possible that since it
\r
243 unblocked another task has set the bits. If this is the case
\r
244 then it needs to clear the bits before exiting. */
\r
245 if( ( uxReturn & uxBitsToWaitFor ) == uxBitsToWaitFor )
\r
247 pxEventBits->uxEventBits &= ~uxBitsToWaitFor;
\r
251 mtCOVERAGE_TEST_MARKER();
\r
254 taskEXIT_CRITICAL();
\r
256 xTimeoutOccurred = pdTRUE;
\r
260 /* The task unblocked because the bits were set. */
\r
263 /* Control bits might be set as the task had blocked should not be
\r
265 uxReturn &= ~eventEVENT_BITS_CONTROL_BYTES;
\r
268 traceEVENT_GROUP_SYNC_END( xEventGroup, uxBitsToSet, uxBitsToWaitFor, xTimeoutOccurred );
\r
272 /*-----------------------------------------------------------*/
\r
274 EventBits_t xEventGroupWaitBits( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToWaitFor, const BaseType_t xClearOnExit, const BaseType_t xWaitForAllBits, TickType_t xTicksToWait )
\r
276 EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;
\r
277 EventBits_t uxReturn, uxControlBits = 0;
\r
278 BaseType_t xWaitConditionMet, xAlreadyYielded;
\r
279 BaseType_t xTimeoutOccurred = pdFALSE;
\r
281 /* Check the user is not attempting to wait on the bits used by the kernel
\r
282 itself, and that at least one bit is being requested. */
\r
283 configASSERT( xEventGroup );
\r
284 configASSERT( ( uxBitsToWaitFor & eventEVENT_BITS_CONTROL_BYTES ) == 0 );
\r
285 configASSERT( uxBitsToWaitFor != 0 );
\r
286 #if ( ( INCLUDE_xTaskGetSchedulerState == 1 ) || ( configUSE_TIMERS == 1 ) )
\r
288 configASSERT( !( ( xTaskGetSchedulerState() == taskSCHEDULER_SUSPENDED ) && ( xTicksToWait != 0 ) ) );
\r
294 const EventBits_t uxCurrentEventBits = pxEventBits->uxEventBits;
\r
296 /* Check to see if the wait condition is already met or not. */
\r
297 xWaitConditionMet = prvTestWaitCondition( uxCurrentEventBits, uxBitsToWaitFor, xWaitForAllBits );
\r
299 if( xWaitConditionMet != pdFALSE )
\r
301 /* The wait condition has already been met so there is no need to
\r
303 uxReturn = uxCurrentEventBits;
\r
304 xTicksToWait = ( TickType_t ) 0;
\r
306 /* Clear the wait bits if requested to do so. */
\r
307 if( xClearOnExit != pdFALSE )
\r
309 pxEventBits->uxEventBits &= ~uxBitsToWaitFor;
\r
313 mtCOVERAGE_TEST_MARKER();
\r
316 else if( xTicksToWait == ( TickType_t ) 0 )
\r
318 /* The wait condition has not been met, but no block time was
\r
319 specified, so just return the current value. */
\r
320 uxReturn = uxCurrentEventBits;
\r
324 /* The task is going to block to wait for its required bits to be
\r
325 set. uxControlBits are used to remember the specified behaviour of
\r
326 this call to xEventGroupWaitBits() - for use when the event bits
\r
327 unblock the task. */
\r
328 if( xClearOnExit != pdFALSE )
\r
330 uxControlBits |= eventCLEAR_EVENTS_ON_EXIT_BIT;
\r
334 mtCOVERAGE_TEST_MARKER();
\r
337 if( xWaitForAllBits != pdFALSE )
\r
339 uxControlBits |= eventWAIT_FOR_ALL_BITS;
\r
343 mtCOVERAGE_TEST_MARKER();
\r
346 /* Store the bits that the calling task is waiting for in the
\r
347 task's event list item so the kernel knows when a match is
\r
348 found. Then enter the blocked state. */
\r
349 vTaskPlaceOnUnorderedEventList( &( pxEventBits->xTasksWaitingForBits ), ( uxBitsToWaitFor | uxControlBits ), xTicksToWait );
\r
351 /* This is obsolete as it will get set after the task unblocks, but
\r
352 some compilers mistakenly generate a warning about the variable
\r
353 being returned without being set if it is not done. */
\r
356 traceEVENT_GROUP_WAIT_BITS_BLOCK( xEventGroup, uxBitsToWaitFor );
\r
359 xAlreadyYielded = xTaskResumeAll();
\r
361 if( xTicksToWait != ( TickType_t ) 0 )
\r
363 if( xAlreadyYielded == pdFALSE )
\r
365 portYIELD_WITHIN_API();
\r
369 mtCOVERAGE_TEST_MARKER();
\r
372 /* The task blocked to wait for its required bits to be set - at this
\r
373 point either the required bits were set or the block time expired. If
\r
374 the required bits were set they will have been stored in the task's
\r
375 event list item, and they should now be retrieved then cleared. */
\r
376 uxReturn = uxTaskResetEventItemValue();
\r
378 if( ( uxReturn & eventUNBLOCKED_DUE_TO_BIT_SET ) == ( EventBits_t ) 0 )
\r
380 taskENTER_CRITICAL();
\r
382 /* The task timed out, just return the current event bit value. */
\r
383 uxReturn = pxEventBits->uxEventBits;
\r
385 /* It is possible that the event bits were updated between this
\r
386 task leaving the Blocked state and running again. */
\r
387 if( prvTestWaitCondition( uxReturn, uxBitsToWaitFor, xWaitForAllBits ) != pdFALSE )
\r
389 if( xClearOnExit != pdFALSE )
\r
391 pxEventBits->uxEventBits &= ~uxBitsToWaitFor;
\r
395 mtCOVERAGE_TEST_MARKER();
\r
400 mtCOVERAGE_TEST_MARKER();
\r
403 taskEXIT_CRITICAL();
\r
405 /* Prevent compiler warnings when trace macros are not used. */
\r
406 xTimeoutOccurred = pdFALSE;
\r
410 /* The task unblocked because the bits were set. */
\r
413 /* The task blocked so control bits may have been set. */
\r
414 uxReturn &= ~eventEVENT_BITS_CONTROL_BYTES;
\r
416 traceEVENT_GROUP_WAIT_BITS_END( xEventGroup, uxBitsToWaitFor, xTimeoutOccurred );
\r
420 /*-----------------------------------------------------------*/
\r
422 EventBits_t xEventGroupClearBits( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToClear )
\r
424 EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;
\r
425 EventBits_t uxReturn;
\r
427 /* Check the user is not attempting to clear the bits used by the kernel
\r
429 configASSERT( xEventGroup );
\r
430 configASSERT( ( uxBitsToClear & eventEVENT_BITS_CONTROL_BYTES ) == 0 );
\r
432 taskENTER_CRITICAL();
\r
434 traceEVENT_GROUP_CLEAR_BITS( xEventGroup, uxBitsToClear );
\r
436 /* The value returned is the event group value prior to the bits being
\r
438 uxReturn = pxEventBits->uxEventBits;
\r
440 /* Clear the bits. */
\r
441 pxEventBits->uxEventBits &= ~uxBitsToClear;
\r
443 taskEXIT_CRITICAL();
\r
447 /*-----------------------------------------------------------*/
\r
449 #if ( ( configUSE_TRACE_FACILITY == 1 ) && ( INCLUDE_xTimerPendFunctionCall == 1 ) && ( configUSE_TIMERS == 1 ) )
\r
451 BaseType_t xEventGroupClearBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToClear )
\r
453 BaseType_t xReturn;
\r
455 traceEVENT_GROUP_CLEAR_BITS_FROM_ISR( xEventGroup, uxBitsToClear );
\r
456 xReturn = xTimerPendFunctionCallFromISR( vEventGroupClearBitsCallback, ( void * ) xEventGroup, ( uint32_t ) uxBitsToClear, NULL );
\r
462 /*-----------------------------------------------------------*/
\r
464 EventBits_t xEventGroupGetBitsFromISR( EventGroupHandle_t xEventGroup )
\r
466 UBaseType_t uxSavedInterruptStatus;
\r
467 EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;
\r
468 EventBits_t uxReturn;
\r
470 uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();
\r
472 uxReturn = pxEventBits->uxEventBits;
\r
474 portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
\r
478 /*-----------------------------------------------------------*/
\r
480 EventBits_t xEventGroupSetBits( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet )
\r
482 ListItem_t *pxListItem, *pxNext;
\r
483 ListItem_t const *pxListEnd;
\r
485 EventBits_t uxBitsToClear = 0, uxBitsWaitedFor, uxControlBits;
\r
486 EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;
\r
487 BaseType_t xMatchFound = pdFALSE;
\r
489 /* Check the user is not attempting to set the bits used by the kernel
\r
491 configASSERT( xEventGroup );
\r
492 configASSERT( ( uxBitsToSet & eventEVENT_BITS_CONTROL_BYTES ) == 0 );
\r
494 pxList = &( pxEventBits->xTasksWaitingForBits );
\r
495 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. */
\r
498 traceEVENT_GROUP_SET_BITS( xEventGroup, uxBitsToSet );
\r
500 pxListItem = listGET_HEAD_ENTRY( pxList );
\r
502 /* Set the bits. */
\r
503 pxEventBits->uxEventBits |= uxBitsToSet;
\r
505 /* See if the new bit value should unblock any tasks. */
\r
506 while( pxListItem != pxListEnd )
\r
508 pxNext = listGET_NEXT( pxListItem );
\r
509 uxBitsWaitedFor = listGET_LIST_ITEM_VALUE( pxListItem );
\r
510 xMatchFound = pdFALSE;
\r
512 /* Split the bits waited for from the control bits. */
\r
513 uxControlBits = uxBitsWaitedFor & eventEVENT_BITS_CONTROL_BYTES;
\r
514 uxBitsWaitedFor &= ~eventEVENT_BITS_CONTROL_BYTES;
\r
516 if( ( uxControlBits & eventWAIT_FOR_ALL_BITS ) == ( EventBits_t ) 0 )
\r
518 /* Just looking for single bit being set. */
\r
519 if( ( uxBitsWaitedFor & pxEventBits->uxEventBits ) != ( EventBits_t ) 0 )
\r
521 xMatchFound = pdTRUE;
\r
525 mtCOVERAGE_TEST_MARKER();
\r
528 else if( ( uxBitsWaitedFor & pxEventBits->uxEventBits ) == uxBitsWaitedFor )
\r
530 /* All bits are set. */
\r
531 xMatchFound = pdTRUE;
\r
535 /* Need all bits to be set, but not all the bits were set. */
\r
538 if( xMatchFound != pdFALSE )
\r
540 /* The bits match. Should the bits be cleared on exit? */
\r
541 if( ( uxControlBits & eventCLEAR_EVENTS_ON_EXIT_BIT ) != ( EventBits_t ) 0 )
\r
543 uxBitsToClear |= uxBitsWaitedFor;
\r
547 mtCOVERAGE_TEST_MARKER();
\r
550 /* Store the actual event flag value in the task's event list
\r
551 item before removing the task from the event list. The
\r
552 eventUNBLOCKED_DUE_TO_BIT_SET bit is set so the task knows
\r
553 that is was unblocked due to its required bits matching, rather
\r
554 than because it timed out. */
\r
555 ( void ) xTaskRemoveFromUnorderedEventList( pxListItem, pxEventBits->uxEventBits | eventUNBLOCKED_DUE_TO_BIT_SET );
\r
558 /* Move onto the next list item. Note pxListItem->pxNext is not
\r
559 used here as the list item may have been removed from the event list
\r
560 and inserted into the ready/pending reading list. */
\r
561 pxListItem = pxNext;
\r
564 /* Clear any bits that matched when the eventCLEAR_EVENTS_ON_EXIT_BIT
\r
565 bit was set in the control word. */
\r
566 pxEventBits->uxEventBits &= ~uxBitsToClear;
\r
568 ( void ) xTaskResumeAll();
\r
570 return pxEventBits->uxEventBits;
\r
572 /*-----------------------------------------------------------*/
\r
574 void vEventGroupDelete( EventGroupHandle_t xEventGroup )
\r
576 EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;
\r
577 const List_t *pxTasksWaitingForBits = &( pxEventBits->xTasksWaitingForBits );
\r
581 traceEVENT_GROUP_DELETE( xEventGroup );
\r
583 while( listCURRENT_LIST_LENGTH( pxTasksWaitingForBits ) > ( UBaseType_t ) 0 )
\r
585 /* Unblock the task, returning 0 as the event list is being deleted
\r
586 and cannot therefore have any bits set. */
\r
587 configASSERT( pxTasksWaitingForBits->xListEnd.pxNext != ( ListItem_t * ) &( pxTasksWaitingForBits->xListEnd ) );
\r
588 ( void ) xTaskRemoveFromUnorderedEventList( pxTasksWaitingForBits->xListEnd.pxNext, eventUNBLOCKED_DUE_TO_BIT_SET );
\r
591 vPortFree( pxEventBits );
\r
593 ( void ) xTaskResumeAll();
\r
595 /*-----------------------------------------------------------*/
\r
597 /* For internal use only - execute a 'set bits' command that was pended from
\r
599 void vEventGroupSetBitsCallback( void *pvEventGroup, const uint32_t ulBitsToSet )
\r
601 ( void ) xEventGroupSetBits( pvEventGroup, ( EventBits_t ) ulBitsToSet );
\r
603 /*-----------------------------------------------------------*/
\r
605 /* For internal use only - execute a 'clear bits' command that was pended from
\r
607 void vEventGroupClearBitsCallback( void *pvEventGroup, const uint32_t ulBitsToClear )
\r
609 ( void ) xEventGroupClearBits( pvEventGroup, ( EventBits_t ) ulBitsToClear );
\r
611 /*-----------------------------------------------------------*/
\r
613 static BaseType_t prvTestWaitCondition( const EventBits_t uxCurrentEventBits, const EventBits_t uxBitsToWaitFor, const BaseType_t xWaitForAllBits )
\r
615 BaseType_t xWaitConditionMet = pdFALSE;
\r
617 if( xWaitForAllBits == pdFALSE )
\r
619 /* Task only has to wait for one bit within uxBitsToWaitFor to be
\r
620 set. Is one already set? */
\r
621 if( ( uxCurrentEventBits & uxBitsToWaitFor ) != ( EventBits_t ) 0 )
\r
623 xWaitConditionMet = pdTRUE;
\r
627 mtCOVERAGE_TEST_MARKER();
\r
632 /* Task has to wait for all the bits in uxBitsToWaitFor to be set.
\r
633 Are they set already? */
\r
634 if( ( uxCurrentEventBits & uxBitsToWaitFor ) == uxBitsToWaitFor )
\r
636 xWaitConditionMet = pdTRUE;
\r
640 mtCOVERAGE_TEST_MARKER();
\r
644 return xWaitConditionMet;
\r
646 /*-----------------------------------------------------------*/
\r
648 #if ( ( configUSE_TRACE_FACILITY == 1 ) && ( INCLUDE_xTimerPendFunctionCall == 1 ) && ( configUSE_TIMERS == 1 ) )
\r
650 BaseType_t xEventGroupSetBitsFromISR( EventGroupHandle_t xEventGroup, const EventBits_t uxBitsToSet, BaseType_t *pxHigherPriorityTaskWoken )
\r
652 BaseType_t xReturn;
\r
654 traceEVENT_GROUP_SET_BITS_FROM_ISR( xEventGroup, uxBitsToSet );
\r
655 xReturn = xTimerPendFunctionCallFromISR( vEventGroupSetBitsCallback, ( void * ) xEventGroup, ( uint32_t ) uxBitsToSet, pxHigherPriorityTaskWoken );
\r
661 /*-----------------------------------------------------------*/
\r
663 #if (configUSE_TRACE_FACILITY == 1)
\r
665 UBaseType_t uxEventGroupGetNumber( void* xEventGroup )
\r
667 UBaseType_t xReturn;
\r
668 EventGroup_t *pxEventBits = ( EventGroup_t * ) xEventGroup;
\r
670 if( xEventGroup == NULL )
\r
676 xReturn = pxEventBits->uxEventGroupNumber;
\r