[ECOS] On RTC's isr!

[zhlg_shuhan]

hi,all.
   why  not RTC's isr call dsr_post()?
then,how rtc's dsr() was called?

cyg_uint32 Cyg_RealTimeClock::isr(cyg_vector vector, CYG_ADDRWORD data)
{
//    CYG_REPORT_FUNCTION();

#if defined(CYGVAR_KERNEL_COUNTERS_CLOCK_LATENCY) && defined(HAL_CLOCK_LATENCY)
    if (measure_clock_latency) {
        cyg_int32 delta;
        HAL_CLOCK_LATENCY(&delta);
        // Note: Ignore a latency of 0 when finding min_clock_latency.
        if (delta > 0) {
            // Valid delta measured
            total_clock_latency += delta;
            total_clock_interrupts++;
            if (min_clock_latency > delta) min_clock_latency = delta;
            if (max_clock_latency < delta) max_clock_latency = delta;
        }
    }
#endif

    CYG_INSTRUMENT_CLOCK( ISR, 0, 0);

    HAL_CLOCK_RESET( CYGNUM_HAL_INTERRUPT_RTC, CYGNUM_KERNEL_COUNTERS_RTC_PERIOD );

    Cyg_Interrupt::acknowledge_interrupt(CYGNUM_HAL_INTERRUPT_RTC);

#if defined(CYGVAR_KERNEL_COUNTERS_CLOCK_DSR_LATENCY)
    HAL_CLOCK_READ(&clock_dsr_start);
#endif    
    return Cyg_Interrupt::CALL_DSR|Cyg_Interrupt::HANDLED;
}


and in rtc's dsr(),parameter count maybe >1,but when i check
call_pending_DSRS(),i found count=1! why?

                                    
                                                     zhlg 
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