Thanks, my mistake, it worked...
On Fri, 1 Oct 2021 at 13:34, Stanislav Zaikin <zsta...@gmail.com> wrote:
> You need to uncomment clib_mem_init
>
> On Fri, 1 Oct 2021 at 10:01, Venumadhav Josyula <vjosy...@gmail.com>
> wrote:
>
>> Hi Ole,
>>
>> So instead of the code below, I tried the code from
>> "src/vpp-api/client/test.c". I directly copied this into my .c file. And
>> following commands i used
>>
>> compilation + linking : - gcc vpp_api_client_vac_layer.c -o
>> vpp_api_client_vac_layer.o -lpthread -lvlibmemoryclient -lvppinfra
>> -lvppapiclient -I/usr/include/
>> code is below
>> #include<stdio.h>
>> #include<stdlib.h>
>> #include <vnet/vnet.h>
>> #include <vlib/vlib.h>
>> #include <vlib/unix/unix.h>
>> #include <vlibapi/api.h>
>> #include <vppinfra/time.h>
>> #include <vpp/api/vpe_msg_enum.h>
>> #include <signal.h>
>>
>> #include<vpp-api/client/vppapiclient.h>
>> #include<vpp-api/client/stat_client.h>
>>
>> #define vl_typedefs /* define message structures */
>> #include <vpp/api/vpe_all_api_h.h>
>> #undef vl_typedefs
>>
>>
>> volatile int sigterm_received = 0;
>> volatile u32 result_ready;
>> volatile u16 result_msg_id;
>>
>> /* M_NOALLOC: construct, but don't yet send a message */
>>
>> #define M_NOALLOC(T,t) \
>> do { \
>> result_ready = 0; \
>> clib_memset (mp, 0, sizeof (*mp)); \
>> mp->_vl_msg_id = ntohs (VL_API_##T); \
>> mp->client_index = am->my_client_index; \
>> } while(0);
>>
>> void
>> wrap_vac_callback (unsigned char *data, int len)
>> {
>> result_ready = 1;
>> result_msg_id = ntohs(*((u16 *)data));
>> }
>>
>> static void
>> test_connect ()
>> {
>> static int i;
>> int rv = vac_connect("vac_client", NULL, wrap_vac_callback, 32 /*
>> rx queue-length*/);
>> if (rv != 0) {
>> printf("Connect failed: %d\n", rv);
>> exit(rv);
>> }
>> printf(".");
>> vac_disconnect();
>> i++;
>> }
>>
>> static void test_messages (void)
>> {
>> api_main_t * am = vlibapi_get_main();
>> vl_api_show_version_t message;
>> vl_api_show_version_t *mp;
>> int async = 1;
>>
>> int rv = vac_connect("vac_client", NULL, wrap_vac_callback, 32 /*
>> rx queue-length*/);
>> if (rv != 0) {
>> printf("Connect failed: %d\n", rv);
>> exit(rv);
>> }
>>
>> double timestamp_start = unix_time_now_nsec() * 1e-6;
>>
>> /*
>> * Test vpe_api_write and vpe_api_read to send and recv message
>> for an
>> * API
>> */
>> int i;
>> long int no_msgs = 10000;
>> mp = &message;
>>
>> for (i = 0; i < no_msgs; i++) {
>> /* Construct the API message */
>> M_NOALLOC(SHOW_VERSION, show_version);
>> vac_write((char *)mp, sizeof(*mp));
>> #ifndef __COVERITY__
>> /* As given, async is always 1. Shut up Coverity about it
>> */
>> if (!async)
>> while (result_ready == 0);
>> #endif
>> }
>> if (async) {
>> vl_api_control_ping_t control;
>> vl_api_control_ping_t *mp;
>> mp = &control;
>> M_NOALLOC(CONTROL_PING, control_ping);
>> vac_write((char *)mp, sizeof(*mp));
>>
>> while (result_msg_id != VL_API_CONTROL_PING_REPLY);
>> }
>>
>> double timestamp_end = unix_time_now_nsec() * 1e-6;
>> printf("\nTook %.2f msec, %.0f msgs/msec \n", (timestamp_end -
>> timestamp_start),
>> no_msgs/(timestamp_end - timestamp_start));
>> printf("Exiting...\n");
>> vac_disconnect();
>> }
>>
>>
>> int main (int argc, char ** argv)
>> {
>> #if 0
>> clib_mem_init (0, 3ULL << 30);
>> test_stats();
>> #endif
>>
>> int i;
>>
>> for (i = 0; i < 1000; i++) {
>> test_connect();
>> }
>>
>> test_messages();
>> exit (0);
>> }
>>
>> It compiled successfully, i got following assert for heap
>> [root@8f57181df3a1 vpp_c_api_examples]# gdb ./vpp_api_client_vac_layer.o
>> GNU gdb (GDB) Red Hat Enterprise Linux 8.3-3.el7
>> Copyright (C) 2019 Free Software Foundation, Inc.
>> License GPLv3+: GNU GPL version 3 or later <
>> http://gnu.org/licenses/gpl.html>
>> This is free software: you are free to change and redistribute it.
>> There is NO WARRANTY, to the extent permitted by law.
>> Type "show copying" and "show warranty" for details.
>> This GDB was configured as "x86_64-redhat-linux-gnu".
>> Type "show configuration" for configuration details.
>> For bug reporting instructions, please see:
>> <http://www.gnu.org/software/gdb/bugs/>.
>> Find the GDB manual and other documentation resources online at:
>> <http://www.gnu.org/software/gdb/documentation/>.
>>
>> For help, type "help".
>> Type "apropos word" to search for commands related to "word"...
>> Reading symbols from ./vpp_api_client_vac_layer.o...
>> (No debugging symbols found in ./vpp_api_client_vac_layer.o)
>> (gdb) r
>> Starting program: /root/vpp_c_api_examples/vpp_api_client_vac_layer.o
>> Missing separate debuginfos, use: debuginfo-install
>> glibc-2.17-324.el7_9.x86_64
>> [Thread debugging using libthread_db enabled]
>> Using host libthread_db library "/lib64/libthread_db.so.1".
>> vpp_api_client_vac_layer.o:
>> /vpp/build-root/rpmbuild/vpp-21.06.0/src/vpp-api/client/client.c:295:
>> vac_connect: Assertion `clib_mem_get_heap ()' failed.
>>
>> Program received signal SIGABRT, Aborted.
>> 0x00007ffff7827387 in raise () from /lib64/libc.so.6
>> (gdb) bt
>> #0 0x00007ffff7827387 in raise () from /lib64/libc.so.6
>> #1 0x00007ffff7828a78 in abort () from /lib64/libc.so.6
>> #2 0x00007ffff78201a6 in __assert_fail_base () from /lib64/libc.so.6
>> #3 0x00007ffff7820252 in __assert_fail () from /lib64/libc.so.6
>> #4 0x00007ffff7f57bcd in vac_connect (name=0x402010 "vac_client",
>> chroot_prefix=0x0, cb=0x4011d2 <wrap_vac_callback>, rx_qlen=32)
>> at /usr/src/debug/vpp-21.06.0/src/vpp-api/client/client.c:314
>> #5 0x0000000000401227 in test_connect ()
>> #6 0x0000000000401687 in main ()
>> (gdb)
>>
>> Startup.conf
>> [root@8f57181df3a1 vpp_c_api_examples]# cat /etc/vpp/startup.conf
>> unix {
>> #nodaemon
>> #interactive
>> log /var/log/vpp/vpp.log
>> cli-listen /run/vpp/cli.sock
>> gid vpp
>> #exec /etc/ipsec-setup.txt
>> }
>>
>> cpu {
>> main-core 2
>> }
>>
>> dpdk {
>> dev default {
>> num-rx-desc 512
>> num-tx-desc 512
>> }
>> socket-mem 1024
>> dev 0000:00:04.0
>> uio-driver uio_pci_generic
>> }
>>
>> logging {
>> default-log-level debug
>> default-syslog-log-level info
>> }
>> [root@8f57181df3a1 vpp_c_api_examples]#
>> I
>> Is there some setting i need to do in the startup.conf ?
>>
>> Please suggest a way to fix this assert.
>>
>> Thanks,
>> Regards
>> Venu
>>
>> On Thu, 30 Sept 2021 at 21:08, Benoit Ganne (bganne) <bga...@cisco.com>
>> wrote:
>>
>>> You should remove -lvlib it is not needed here.
>>> If you really want to link with vlib, you must fix the link ordering:
>>> vlib depends upon vppinfra (where os_exit is defined) so you'd need link as
>>> -lvlib -lvppinfra instead of the opposite (the C linker scan libraries
>>> symbols in reverse order, so symbols declared in a library are available to
>>> libraries listed *before*).
>>>
>>> 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 16:09
>>> > To: Akash S R <akashsr.akas...@gmail.com>
>>> > Cc: Benoit Ganne (bganne) <bga...@cisco.com>; Ole Troan
>>> > <otr...@employees.org>; RaviKiran Veldanda <ravi.jup...@gmail.com>;
>>> vpp-
>>> > dev <vpp-dev@lists.fd.io>
>>> > Subject: Re: [vpp-dev] VPP Socket API how to use from the application
>>> > #socket-api #vpp #sock-api
>>> >
>>> > Hi Akash,
>>> >
>>> > Thansks, now after devtoolset,
>>> >
>>> >
>>> > @Benoit Ganne (bganne) <mailto:bga...@cisco.com> , @Ole Troan
>>> > <mailto:otr...@employees.org>
>>> >
>>> > 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
>>> > <mailto: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
>>> > <mailto: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 <mailto: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 <mailto:
>>> vpp-dev@lists.fd.io>
>>> > <vpp-dev@lists.fd.io <mailto:vpp-dev@lists.fd.io> > On Behalf Of
>>> > Venumadhav
>>> > > Josyula
>>> > > Sent: jeudi 30 septembre 2021 14:49
>>> > > To: otr...@employees.org <mailto:
>>> otr...@employees.org>
>>> > > Cc: RaviKiran Veldanda <ravi.jup...@gmail.com
>>> > <mailto:ravi.jup...@gmail.com> >; vpp-dev <vpp-
>>> > > d...@lists.fd.io <mailto: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>
>>> > > <mailto: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
>>> > >
>>> > >
>>> >
>>> >
>>> >
>>> >
>>> >
>>>
>>>
>>
>>
>>
>
> --
> Best regards
> Stanislav Zaikin
>
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