Hi Ole,
I believe you are referring to test/ext/vapi_c_test.c. However, it would
greatly help if there is a page that is similar to
https://wiki.fd.io/view/VPP/How_To_Use_The_C_API (which is easy to follow
correlating with contents of src/vat/) to explain how-to for VAPI.
Appreciate if following could be covered:
1. Libraries to include in client application
2. Examples for request/reply, dump/details and event registration with
vapi
3. Equivalents of accessing auto-generated APIs to cover
vl_msg_id
vl_union_id
vl_printfun
vl_endianfun
vl_api_version
vl_typedefs
vl_msg_name
vl_msg_name_crc_list
4. Initialization and message registration
5. Send and receive messages
6. Anything else you can think of would be useful
Also this presentation helps a lot to understand VPP Binary API (
https://www.youtube.com/watch?v=V5XGUUgCtEg) in the context of VAT but not
VAPI. Hence, request you for some details on VAPI. I already looked at this
https://docs.fd.io/vpp/17.10/vapi_doc.html :-)
Thank you,
Prashant
On Fri, Aug 9, 2019 at 1:33 AM Ole Troan <[email protected]> wrote:
> Hi Hua,
>
> > Here’s a basic question for the VPP APIs. We are trying to integrate the
> VPP into our application. We plan to use the C API as the interface between
> our software and VPP. I thought there was a C library that can be built
> into our software at least for existing plugins. Unfortunately I didn’t
> find it. The only thing I got is the vat. Do I have to write such a
> library by ourselves?
>
> There is a C/C++ language binding, called VAPI.
> See https://git.fd.io/vpp/tree/src/vpp-api/vapi
>
> There are a few examples in the test code.
> All the APIs are supported and autogenerated from the .api files, into per
> .api header files.
>
> There's also Go, Python, Lua(rotted) and Java bindings.
>
> Best regards,
> Ole
>
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