Re: [Qemu-ppc] [PATCH v2] Replaced get_tick_per_sec() by NANOSECONDS_PER_SECOND

[Paolo Bonzini]

On 21/03/2016 17:02, address@hidden wrote:
> 
> Hi,
> This patch replaces get_ticks_per_sec() calls to NANOSECONDS_PER_SECOND. 
> Also, as there are no callers, get_ticks_per_sec() has been removed. 
> Replacement imporves readability and understandability of code.
> 
> Example given by Paolo Bonzini,
> 
> timer_mod(fdctrl->result_timer, 
>         qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + (get_ticks_per_sec() / 50));
> 
> NANOSECONDS_PER_SECOND makes it obvious that the timer will expire in 1/50th 
> of a second.

Looks good.  I've edited the commit message as follows:

--------
This patch replaces get_ticks_per_sec() calls with the macro
NANOSECONDS_PER_SECOND. Also, as there are no callers, get_ticks_per_sec()
is then removed.  This replacement improves the readability and
understandability of code.

For example,

    timer_mod(fdctrl->result_timer,
              qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + (get_ticks_per_sec() / 
50));

NANOSECONDS_PER_SECOND makes it obvious that qemu_clock_get_ns
matches the unit of the expression on the right side of the plus.
--------