Thanks for the quick reply. So if I need to take inputs from application and proceed to further processing, what is the way to do so? Should I still be using 2 binaries?
Regards, Akash On Thu, Jun 10, 2021 at 6:31 PM Dave Barach <v...@barachs.net> wrote: > Vpp seems to be its dispatch loop, waiting for an input node to inject > work into the forwarding graph. What you call cust_main() is the moral > equivalent of a while(1) loop. It won’t return. > > > > D. > > > > *From:* Akash S R <akashsr.akas...@gmail.com> > *Sent:* Thursday, June 10, 2021 7:38 AM > *To:* Akash S R <akashsr.akas...@gmail.com> > *Cc:* v...@barachs.net; vpp-dev@lists.fd.io; srilcha...@gmail.com > *Subject:* Re: [vpp-dev] Quick question on VPP on : How to Embed VPP as > library > > > > Hi Dave, > > > > As per your suggestion, we have compiled a shared library and renamed main > in vnet/main.c as cust_main (). > > Invoking the cust_main() from our application results in a hang. Bt as > below: > > > > Thread 1 "vpp_main" received signal SIGINT, Interrupt. > > 0x00007ffff519d888 in clib_time_now_internal (c=0x7fffb3115680, > n=287541441385032) > > at /home/soundarya/june4/vpp/src/vppinfra/time.h:219 > > 219 if (PREDICT_FALSE > > Missing separate debuginfos, use: debuginfo-install > check-0.9.9-5.el7.x86_64 keyutils-libs-1.5.8-3.el7.x86_64 > libgcc-4.8.5-44.el7.x86_64 libselinux-2.5-15.el7.x86_64 > libstdc++-4.8.5-44.el7.x86_64 libuuid-2.23.2-65.el7_9.1.x86_64 > mbedtls-2.7.17-1.el7.x86_64 numactl-libs-2.0.12-5.el7.x86_64 > pcre-8.32-17.el7.x86_64 pkcs11-helper-1.11-3.el7.x86_64 > > (gdb) thread apply all bt > > > > Thread 2 (Thread 0x7fffac0de700 (LWP 10052)): > > #0 0x00007ffff6ad0fd3 in epoll_wait () at > ../sysdeps/unix/syscall-template.S:81 > > #1 0x00007fffb03dae84 in eal_intr_thread_main () from > /home/soundarya/june4/vpp/build-root/install-vpp_debug-native/vpp/lib/vpp_plugins/dpdk_plugin.so > > #2 0x00007ffff7b53ea5 in start_thread (arg=0x7fffac0de700) at > pthread_create.c:307 > > #3 0x00007ffff6ad09fd in clone () at > ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 > > > > Thread 1 (Thread 0x7ffff3218940 (LWP 10048)): > > #0 0x00007ffff51a57f9 in vlib_main_or_worker_loop (vm=0x7fffb3115680, > is_main=1) at /home/soundarya/june4/vpp/src/vlib/main.c:1764 > > #1 0x00007ffff51a599e in vlib_main_loop (vm=0x7fffb3115680) at > /home/soundarya/june4/vpp/src/vlib/main.c:1794 > > #2 0x00007ffff51a69f6 in vlib_main (vm=0x7fffb3115680, > input=0x7fffae6c3fb0) at /home/soundarya/june4/vpp/src/vlib/main.c:2083 > > #3 0x00007ffff52118c1 in thread0 (arg=140736197645952) at > /home/soundarya/june4/vpp/src/vlib/unix/main.c:671 > > #4 0x00007ffff7e5d638 in clib_calljmp () at > /home/5G/vpp/src/vppinfra/longjmp.S:123 > > #5 0x00007fffffffafa0 in ?? () > > #6 0x00007ffff5212010 in vlib_unix_main (argc=37, argv=0x46a3c0) at > /home/soundarya/june4/vpp/src/vlib/unix/main.c:751 > > #7 0x00007ffff7f2774e in cust_main (argc=37, argv=0x46a3c0) at > /home/soundarya/june4/vpp/src/vpp/vnet/main.c:339 > > #8 0x000000000041757c in main () at > /home/soundarya/june4/ViNGC/upf/DataPlane/packetProcessing/vpp/dp/sim/src/altvppsim.c:119 > > (gdb) > > > > Any points to resolve it? > > > > Thanks in Advance! > > > > Regards, > > Akash > > > > On Wed, May 19, 2021 at 5:48 PM Akash S R via lists.fd.io > <akashsr.akashsr=gmail....@lists.fd.io> wrote: > > Thanks Dave, Will check it out and get back here if any query is to be > addressed. > > > > Regards, > > Akash > > > > On Wed, May 19, 2021, 4:51 PM <v...@barachs.net> wrote: > > Long ago, we decided to strictly separate the vpp data plane process from > its control plane process(es); as a matter of fault containment if nothing > else. > > > > As a practical matter, if you want to build vpp as a library you could > change .../src/vpp/vnet/main.c in trivial ways, and adjust > .../src/vpp/CMakeLists.txt to build a shared library instead of a > standalone binary. > > > > Bottom line: I wouldn’t go there myself for any number of reasons, but it > wouldn’t be difficult. > > > > HTH... Dave > > > > *From:* vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> *On Behalf Of *Akash S R > *Sent:* Wednesday, May 19, 2021 6:31 AM > *To:* vpp-dev@lists.fd.io > *Cc:* srilcha...@gmail.com > *Subject:* [vpp-dev] Quick question on VPP on : How to Embed VPP as > library > > > > Hi All, > > We are using VPP version 21.06 (Latest) > We understand that vpp package consists of libraries , plugins,dev and > debugs utilities and runs as exe . > But as per our current usage , we have a control plane application layer > from which we have included VPP packages as libraries from our Makefile . > We launch VPP as a separate process and we invoke VAPI's using socket. > > What is the way to embed VPP directly as a library (Instead of a separate > process ) and directly invoke VAPI's from control plane applications ? > > This is important since we need to know how to deliver VPP as a library to > our client. Please Reply Back if any Related Solution is known. > > > > Thanks in Advance! > > > > Regards, > > Akash > > > > > >
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#19553): https://lists.fd.io/g/vpp-dev/message/19553 Mute This Topic: https://lists.fd.io/mt/82933046/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
