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Allow mutex type semaphores to be given from an interrupt (not a normal thing to do - use a binary semaphore!).

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Allow FreeRTOS+CLI commands to have spaces at the end without it being taken as a parameter.
This commit is contained in:
Richard Barry 2012-09-05 14:02:16 +00:00
parent c0de8c984c
commit 48a307ff5f
3 changed files with 31 additions and 21 deletions
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5
FreeRTOS-Plus/FreeRTOS-Plus-CLI/FreeRTOS_CLI.c
View file

@ -253,6 +253,11 @@ const int8_t *pcReturn = NULL;
pcCommandString++;
}
if( *pxParameterStringLength == 0 )
{
pcReturn = NULL;
}
break;
}
}

2
FreeRTOS/Source/queue.c
View file

@ -874,7 +874,9 @@ xTimeOutType xTimeOut;
if( pxQueue->uxQueueType == queueQUEUE_IS_MUTEX )
{
portENTER_CRITICAL();
{
vTaskPriorityInherit( ( void * ) pxQueue->pxMutexHolder );
}
portEXIT_CRITICAL();
}
}

43
FreeRTOS/Source/tasks.c
View file

@ -2382,30 +2382,33 @@ tskTCB *pxNewTCB;
{
tskTCB * const pxTCB = ( tskTCB * ) pxMutexHolder;
configASSERT( pxMutexHolder );
if( pxTCB->uxPriority < pxCurrentTCB->uxPriority )
/* If the mutex was given back by an interrupt while the queue was
locked then the mutex holder might now be NULL. */
if( pxMutexHolder != NULL )
{
/* Adjust the mutex holder state to account for its new priority. */
listSET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ), configMAX_PRIORITIES - ( portTickType ) pxCurrentTCB->uxPriority );
/* If the task being modified is in the ready state it will need to
be moved in to a new list. */
if( listIS_CONTAINED_WITHIN( &( pxReadyTasksLists[ pxTCB->uxPriority ] ), &( pxTCB->xGenericListItem ) ) != pdFALSE )
if( pxTCB->uxPriority < pxCurrentTCB->uxPriority )
{
vListRemove( &( pxTCB->xGenericListItem ) );
/* Adjust the mutex holder state to account for its new priority. */
listSET_LIST_ITEM_VALUE( &( pxTCB->xEventListItem ), configMAX_PRIORITIES - ( portTickType ) pxCurrentTCB->uxPriority );
/* Inherit the priority before being moved into the new list. */
pxTCB->uxPriority = pxCurrentTCB->uxPriority;
prvAddTaskToReadyQueue( pxTCB );
}
else
{
/* Just inherit the priority. */
pxTCB->uxPriority = pxCurrentTCB->uxPriority;
}
/* If the task being modified is in the ready state it will need to
be moved in to a new list. */
if( listIS_CONTAINED_WITHIN( &( pxReadyTasksLists[ pxTCB->uxPriority ] ), &( pxTCB->xGenericListItem ) ) != pdFALSE )
{
vListRemove( &( pxTCB->xGenericListItem ) );
traceTASK_PRIORITY_INHERIT( pxTCB, pxCurrentTCB->uxPriority );
/* Inherit the priority before being moved into the new list. */
pxTCB->uxPriority = pxCurrentTCB->uxPriority;
prvAddTaskToReadyQueue( pxTCB );
}
else
{
/* Just inherit the priority. */
pxTCB->uxPriority = pxCurrentTCB->uxPriority;
}
traceTASK_PRIORITY_INHERIT( pxTCB, pxCurrentTCB->uxPriority );
}
}
}