I understand. But this code looks confusing (at least). And, just to
draw your attention, there is no priority checking here unless
MaySwitchTransponder() returns true on the second call (which would be
really ugly). Thus, for example, this code (vdr.c:1109)
if (NeedsTransponder || InVpsMargin) {
// Find a device that provides the required transponder:
cDevice *Device = cDevice::GetDeviceForTransponder(Timer->Channel(), MINPRIORITY);
if (!Device && InVpsMargin)
Device = cDevice::GetDeviceForTransponder(Timer->Channel(), LIVEPRIORITY);
// Switch the device to the transponder:
if (Device) {
...
has no sense.
On Thu, Dec 22, 2016 at 02:56:10PM +0100, Klaus Schmidinger wrote:
> On 26.05.2016 17:58, glenvt18 wrote:
> > d->MaySwitchTransponder(Channel) is always false here
> >
> > Please review,
> > Sergey Chernyavskiy.
> >
> > ---
> > device.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/device.c b/device.c
> > index 18867cd..542d120 100644
> > --- a/device.c
> > +++ b/device.c
> > @@ -342,7 +342,7 @@ cDevice *cDevice::GetDeviceForTransponder(const cChannel *Channel, int Priority)
> > if (d->ProvidesTransponder(Channel)) {
> > if (d->MaySwitchTransponder(Channel))
> > Device = d; // this device may switch to the transponder without disturbing any receiver or live view
> > - else if (!d->Occupied() && d->MaySwitchTransponder(Channel)) { // MaySwitchTransponder() implicitly calls Occupied()
> > + else if (!d->Occupied()) { // MaySwitchTransponder() implicitly calls Occupied()
> > if (d->Priority() < Priority && (!Device || d->Priority() < Device->Priority()))
> > Device = d; // use this one only if no other with less impact can be found
> > }
>
> This was introduced in version 1.7.29:
>
> --- device.c 2012/06/09 14:37:24 2.61
> +++ device.c 2012/06/10 13:13:18 2.62
> @@ -334,7 +334,7 @@
> if (d->ProvidesTransponder(Channel)) {
> if (d->MaySwitchTransponder(Channel))
> Device = d; // this device may switch to the transponder without disturbing any receiver or live view
> - else if (!d->Occupied()) {
> + else if (!d->Occupied() && d->MaySwitchTransponder(Channel)) { // MaySwitchTransponder() implicitly calls Occupied()
> if (d->Priority() < Priority && (!Device || d->Priority() < Device->Priority()))
> Device = d; // use this one only if no other with less impact can be found
> }
>
> with the change comment "Fixed handling recording with more than two bonded devices".
>
> While I tend to agree with you in that d->MaySwitchTransponder(Channel) is always false here,
> this must at least have fixed the problem at hand back then (it was the only file that
> has been modified for this fix). I'm therefore hesitant to remove this call and
> risk breaking something...
>
> Klaus
>
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--
glenvt18
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