Re: [vpp-dev] VPP Socket API how to use from the application #socket-api #vpp #sock-api

[Venumadhav Josyula]

Hi Ole / Others,

Thanks for your email, i getting following compilation error
[root@8f57181df3a1 vpp_c_api_examples]#* gcc vpp_api_client_test3.c -o
vpp_api_client_test3.o -lvlibmemoryclient -lsvm -lvppinfra -lvlib*
In file included from /usr/include/vppinfra/error.h:41:0,
                 from /usr/include/vlibapi/api.h:24,
                 from vpp_api_client_test3.c:3:
/usr/include/vppinfra/clib.h:43:18: error: missing binary operator before
token "("
 #if __has_include(<vppinfra/config.h>)
                  ^
In file included from /usr/include/vppinfra/mem.h:49:0,
                 from /usr/include/vppinfra/vec.h:42,
                 from /usr/include/vppinfra/error.h:53,
                 from /usr/include/vlibapi/api.h:24,
                 from vpp_api_client_test3.c:3:
/usr/include/vppinfra/string.h:92:34: error: expected ';', ',' or ')'
before 'dst'
 clib_memcpy_fast (void *restrict dst, const void *restrict src, size_t n)
                                  ^
[root@8f57181df3a1 vpp_c_api_examples]# vim /usr/include/vppinfra/clib.h +43
[root@8f57181df3a1 vpp_c_api_examples]# vim /usr/include/vppinfra/clib.h +43
[root@8f57181df3a1 vpp_c_api_examples]# gcc --version
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[root@8f57181df3a1 vpp_c_api_examples]#

-----------------
c -code
----------------

#include<stdio.h>
#include<stdlib.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <vpp/api/vpe_msg_enum.h>

#define vl_typedefs
#define vl_endianfun
#include <vpp/api/vpe_all_api_h.h>
#undef vl_typedefs
#undef vl_endianfun

int main()
{
   char *name = "vpp-test-app";

   clib_mem_init_thread_safe (0, 64ULL << 20);

   if (vl_client_api_map("/vpe-api"))
   {
        printf("unable to map....\n");
        goto quit;
   }
   if (vl_client_connect("vpp-test-app", 0, 32) < 0)
   {
        printf("unable to connect \n");
        vl_client_api_unmap();
        goto quit;
   }
   printf("successfully connected... \n");
 quit:
        return 0;
}

------------

Can you please suggest what can i be doing worng ?

Thanks,
Regards,
Venu

On Thu, 30 Sept 2021 at 13:21, <otr...@employees.org> wrote:

> Hi Venu,
>
> > Any examples for VAPI shared to use binary APIs ?
>
> Try this for a start:
> https://git.fd.io/vpp/tree/src/vpp-api/vapi/vapi_c_test.c
>
> Cheers,
> Ole
>
>

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