Varnish subroutines return type different from 3.x

Guillaume Quintard guillaume at varnish-software.com
Wed Jan 3 16:59:26 UTC 2018


Then I would use vmod_var and store a value in the subroutines and check it
once they've returned, that way you won't fuss with the C code.

-- 
Guillaume Quintard

On Wed, Jan 3, 2018 at 5:47 PM, Prem Kumar <n.premkumar.me at gmail.com> wrote:

> Ok.the scenario is if separate vcl recv/hash/.. subroutines configured for
> 2 domain URLs,first domain url will be always called and call 2nd domain.
> The first domain will serve only specific url and return 0 if not. If zero
> is returned I will use 2nd domain’s recv with header with index 2.
> Otherwise header to 1. i would like to get return error from respective
> recv/hash/.. subroutine to main handler which will set header .
>
> -prem
>
> On Wed, 3 Jan 2018 at 8:12 PM, Guillaume Quintard <
> guillaume at varnish-software.com> wrote:
>
>> Hi,
>>
>> Pretty sure there was a reason, possibly paving the way to have
>> subroutines return VCL types, some time in the future.
>>
>> Can I ask you what's the goal behind this? I feel like you're headed
>> toward an overkill solution, and we can probably avoid that.
>>
>> Cheers,
>>
>> --
>> Guillaume Quintard
>>
>> On Wed, Jan 3, 2018 at 3:37 PM, Prem Kumar <n.premkumar.me at gmail.com>
>> wrote:
>>
>>> Hi All,
>>>
>>> Is there is any reason why subroutines return type changes from "static
>>> int" to "void" in varnish.
>>> During compilation of  VCL to C code, all the function return type as
>>> void instead of static int before.
>>>
>>> Can you please help if there a way I can return status code from
>>> subroutine?.
>>>
>>> lib/libvcc/vcc_parse.c
>>> vcc_ParseFunction(struct vcc *tl)
>>>
>>> {
>>>
>>>  Fh(tl, 0, "void %s(VRT_CTX);\n", sym->rname);
>>>                 Fc(tl, 1, "\nvoid __match_proto__(vcl_func_t)\n");
>>>                 Fc(tl, 1, "%s(VRT_CTX)\n", sym->rname);
>>>
>>>
>>>
>>>
>>> -Prem
>>>
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>>>
>>
>>
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