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portTickType xTaskGetTickCount( void )

Posted by David Farrell on August 15, 2008

Why is xTaskGetTickCount not like this?

#if configUSE_16_BIT_TICKS == 0
xTicks = xTickCount;
#else
/* Critical section required if running on a 16 bit processor. */
taskENTER_CRITICAL();
{
xTicks = xTickCount;
}
taskEXIT_CRITICAL();
#endif

Thanks Richard B. for a great package!

David.

RE: portTickType xTaskGetTickCount( void )

Posted by Richard on August 15, 2008
You are not the first to point that out. There are several optimisations that could be made along these lines.

A couple of notes:

1) One of the original aims was to avoid using conditional compilation in this way - although this goal already went South as more features and ports were added.

2) Its not just a 16bit ticks definition thing, consider also the case where an 8bit processor is using 16bit tick values. Also, when using a 32bit processor and 32bit ticks you can remove the whole thing.

Regards.


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