Re: Question about RTE ring

[arie abergel <arieabergel@hotmail.fr>]

Thans for your response !

Yes, using rte_ring between multiple process.

So in this case you’re saying the behavior is undefined ?
In my case another process crashed after that.

> Le 11 avr. 2024 à 11:08, Konstantin Ananyev <konstantin.ananyev@huawei.com> a écrit :
> 
> 
> 
> Hi,
>> 
>> As part of a project I have a question about the rte ring.
>> I’m using rte ring multi producer/single consumer.
>> The producers are several process.
>> If one producer is enqueuing an element and crashed (kill pid) in the middle of the
>> enqueuing, can it compromise the ring ?
> 
> I suppose you are using rte_ring as IPC mechanism between multiple processes, correct?
> In theory - yes, if your producer crashed during enqueue() to the ring, then yes, the ring might be affected.
> If producer already moved prod.head  and crashed before updating prod.tail, then no other producers
> will be able to enqueue() into the ring, till you'll do reset() for it.
> I expect such situation really rare and hard to reproduce, but in theory it is possible.
> Konstantin