task.
h
BaseType_t xTaskResumeAll( void );
Resumes scheduler activity after it was suspended by a call to vTaskSuspendAll().
xTaskResumeAll() only resumes the scheduler. It does not unsuspend tasks that were previously suspended by a call to vTaskSuspend().
Example usage:
void vTask1( void * pvParameters ) { for( ;; ) { Task code goes here.
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At some point the task wants to perform a long operation during which it does not want to get swapped out. It cannot use taskENTER_CRITICAL ()/taskEXIT_CRITICAL () as the length of the operation may cause interrupts to be missed - including the ticks.
Prevent the real time kernel swapping out the task. vTaskSuspendAll ();
Perform the operation here. There is no need to use critical sections as we have all the microcontroller processing time. During this time interrupts will still operate and the real time kernel tick count will be maintained.
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The operation is complete. Restart the kernel. We want to force a context switch - but there is no point if resuming the scheduler caused a context switch already. if( !xTaskResumeAll () ) { taskYIELD (); } } }