[PATCH] add VCL_HasBackend() (Re: Preventing dup backend names with dynamic backends in VMODs)

[Dridi Boukelmoune]

On Sun, Nov 1, 2015 at 12:30 PM, Geoff Simmons <geoff at uplex.de> wrote:
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> On 11/01/2015 12:23 PM, Geoff Simmons wrote:
>>
>> This patch adds VCL_HasBackend().
>
> Forgot to mention about this -- it might be necessary to lock the
> vcl_mtx while traversing the vcl->backend_list, since a backend may be
> added while the query is executing.

As discussed in another thread, such interface would be subject to
TOCTOU races too.