Venu, Doesn't seem like you are using the higher level C VAPI API nor the low-level API in vpp-api/client.c. Are you sure this is what you want?
O.
> On 30 Sep 2021, at 16:09, Venumadhav Josyula <vjosy...@gmail.com> wrote:
>
> Hi Akash,
>
> Thansks, now after devtoolset,
>
> @Benoit Ganne (bganne) , @Ole Troan
> i am getting following error
>
> [root@8f57181df3a1 vpp_c_api_examples]# gcc vpp_api_client_test3.c -o
> vpp_api_client_test3.o -lvlibmemoryclient -lsvm -lvppinfra -lvlib
> /opt/rh/devtoolset-9/root/usr/libexec/gcc/x86_64-redhat-linux/9/ld:
> /lib/../lib64/libvlib.so: undefined reference to `classify_get_trace_chain'
> /opt/rh/devtoolset-9/root/usr/libexec/gcc/x86_64-redhat-linux/9/ld:
> /lib/../lib64/libvlib.so: undefined reference to `stat_segment_register_gauge'
> /opt/rh/devtoolset-9/root/usr/libexec/gcc/x86_64-redhat-linux/9/ld:
> /lib/../lib64/libvlib.so: undefined reference to `os_exit'
> collect2: error: ld returned 1 exit status
> [root@8f57181df3a1 vpp_c_api_examples]#
>
> Let me paste the code again,
> #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;
> }
>
> Is this wrong way, i am trying to use APIs ?
>
> Thanks,
> Regards
> Venu
>
> On Thu, 30 Sept 2021 at 19:00, Akash S R <akashsr.akas...@gmail.com> wrote:
> Hey Venu,
>
> Try "scl enable devtoolset-9 bash" inside your docker or update your gcc
> version.
>
>
> /Akash S R
>
> On Thu, Sep 30, 2021, 18:54 Venumadhav Josyula <vjosy...@gmail.com> wrote:
> Hi Benoit,
>
> Thanks for quick reply.
>
> I have docker with following
> [root@8f57181df3a1 vpp_c_api_examples]# rpm -qa | grep vpp
> vpp-lib-21.06.0-4~g0d9d3a0.x86_64
> vpp-api-lua-21.06.0-4~g0d9d3a0.x86_64
> vpp-api-python3-21.06.0-4~g0d9d3a0.x86_64
> vpp-debuginfo-21.06.0-4~g0d9d3a0.x86_64
> vpp-selinux-policy-21.06.0-4~g0d9d3a0.x86_64
> vpp-21.06.0-4~g0d9d3a0.x86_64
> vpp-plugins-21.06.0-4~g0d9d3a0.x86_64
> vpp-devel-21.06.0-4~g0d9d3a0.x86_64
>
> This will vpp running in it.
>
> [root@8f57181df3a1 /]# cat /etc/redhat-release
> CentOS Linux release 7.3.1611 (Core)
> [root@8f57181df3a1 /]#
>
> > Eg. use devtoolset-9 (gcc-9).
>
> How do I use it ?
>
> Thanks,
> Regards,
> Venu
>
> On Thu, 30 Sept 2021 at 18:47, Benoit Ganne (bganne) <bga...@cisco.com> wrote:
> You should upgrade your compiler... GCC-4 is way too old.
> Eg. use devtoolset-9 (gcc-9).
>
> Best
> ben
>
> > -----Original Message-----
> > From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Venumadhav
> > Josyula
> > Sent: jeudi 30 septembre 2021 14:49
> > To: otr...@employees.org
> > Cc: RaviKiran Veldanda <ravi.jup...@gmail.com>; vpp-dev <vpp-
> > d...@lists.fd.io>
> > Subject: Re: [vpp-dev] VPP Socket API how to use from the application
> > #socket-api #vpp #sock-api
> >
> > 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
> > <mailto: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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