u32_t sys_arch_mbox_fetch(sys_mbox_t mbox, void **msg, u32_t timeout)
{
void *dummyptr;
portTickType StartTime, EndTime, Elapsed;

StartTime = xTaskGetTickCount();

if ( msg == NULL )
{
msg = &dummyptr;
}

if ( timeout != 0 )
{
if ( pdTRUE == xQueueReceive( mbox, &(*msg), timeout / portTICK_RATE_MS ) )
{
EndTime = xTaskGetTickCount();
Elapsed = (EndTime - StartTime) * portTICK_RATE_MS;

return ( Elapsed );
}
else // timed out blocking for message
{
*msg = NULL;

return SYS_ARCH_TIMEOUT;
}
}
else // block forever for a message.
{
while( pdTRUE != xQueueReceive( mbox, &(*msg), portMAX_DELAY ) ){} // time is arbitrary <- Вот здесь
EndTime = xTaskGetTickCount();
Elapsed = (EndTime - StartTime) * portTICK_RATE_MS;

return ( Elapsed ); // return time blocked TODO test
}
}