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Fix missed yield in xTaskResumeFromISR (#207)

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If a higher priority task than the currently running task was resumed
using xTaskResumeFromISR and the user chose to ignore the return value
of xTaskResumeFromISR to initiate a context switch using
portYIELD_FROM_ISR, we were not doing the context switch on the next run
of the scheduler. This change fixes this by marking a yield as pending
to ensure that the context switch is performed on the next run of the
scheduler.

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
This commit is contained in:
Gaurav-Aggarwal-AWS 2020-10-22 17:09:35 -07:00 committed by GitHub
parent c6636f465f
commit db62e30bce
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1 changed files with 5 additions and 0 deletions
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5
tasks.c
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@ -1949,6 +1949,11 @@ static void prvAddNewTaskToReadyList( TCB_t * pxNewTCB )
if( pxTCB->uxPriority >= pxCurrentTCB->uxPriority ) if( pxTCB->uxPriority >= pxCurrentTCB->uxPriority )
{ {
xYieldRequired = pdTRUE; xYieldRequired = pdTRUE;
/* Mark that a yield is pending in case the user is not
* using the return value to initiate a context switch
* from the ISR using portYIELD_FROM_ISR. */
xYieldPending = pdTRUE;
} }
else else
{ {