[ENet-discuss] A few questions about unreliable delivery

[Tom Spencer-Smith]

Cool. Thanks Lee.



On Mon, Jul 28, 2014 at 3:25 PM, Lee Salzman <lsalzman at gmail.com> wrote:

> Unreliable is sequenced, unless you specify the unsequenced flag.
>
>
> On 07/28/2014 10:19 AM, Tom Spencer-Smith wrote:
>
>>
>> Thanks. So 0 flags means unreliable but sequenced.
>> If I send U traffic on its own channel without any R on that channel,
>> using 0 flag, is it still sequenced?
>>
>> Cheers
>>
>>
>> On Mon, Jul 28, 2014 at 3:10 PM, Lee Salzman <lsalzman at gmail.com <mailto:
>> lsalzman at gmail.com>> wrote:
>>
>>     1. 0 flags means unreliable.
>>
>>     2. Unsequenced are both unreliable and unsequenced, so they can be
>> discarded and come out of order.
>>
>>     3. Neither has duplicates, so you will only ever get a packet once or
>> never.
>>
>>     4. Unreliable packets sent after a reliable packet stall on the
>> reliable packet, whereas unsequenced won't stall.
>>
>>
>>     On 07/28/2014 06:27 AM, Tom Spencer-Smith wrote:
>>
>>
>>         I'm a little confused on how to get certain delivery
>> characteristics for unreliable packets.
>>
>>         1. By default (using 0 for the flags), U packets are delivered in
>> order (but with possible gaps in sequence)?
>>
>>         2. ENET_PACKET_FLAG_UNSEQUENCED delivers them potentially
>> out-of-order, i.e. discards nothing?
>>
>>         3. What about duplicates, for both cases above?
>>
>>         4. If R and U packets are sent on the same channel, do U packets
>> stall on earlier undelivered R packets? So most people would want to use
>> different channels for R and U?
>>
>>         Thanks
>>
>>         Tom
>>
>>
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