Re: [vpp-dev] #socket-api get stuck in socket function
Hi， Florin Coras I found out that because I run the next program right next to the last one, the VCL didn't clear the last connection, so I get stuck in the socket function. Thanks a lot. -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#21291): https://lists.fd.io/g/vpp-dev/message/21291 Mute This Topic: https://lists.fd.io/mt/90680910/21656 Mute #socket-api:https://lists.fd.io/g/vpp-dev/mutehashtag/socket-api Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] #socket-api get stuck in socket function
Hi, I’m guessing you’re asking how to run LDP from gdb. For that either create a gdb script file and: gdb -x cmd.gdb --args ./epollandsocket, or run the commands after starting gdb. The minimal set of commands to start: set exec-wrapper env ‘LD_PRELOAD=/vpp/build-root/build-vpp-native/vpp/lib/libvcl_ldpreload.so’ set environment VCL_CONFIG=/vcl.conf Hope this helps! Regards, Florin > On Apr 26, 2022, at 10:50 AM, 25956760...@gmail.com wrote: > > Thanks， I'm using LDP. When I use gdb to debug, it comes out with output as > follows. > I guess LDP recovers some libraries that gdb needs. When I switch to normal > env, gdb runs correctly. How can I solve this, thanks. Correct output as > follows. > > > > -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#21286): https://lists.fd.io/g/vpp-dev/message/21286 Mute This Topic: https://lists.fd.io/mt/90680910/21656 Mute #socket-api:https://lists.fd.io/g/vpp-dev/mutehashtag/socket-api Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] #socket-api get stuck in socket function
Thanks， I'm using LDP. When I use gdb to debug, it comes out with output as follows. I guess LDP recovers some libraries that gdb needs. When I switch to normal env, gdb runs correctly. How can I solve this, thanks. Correct output as follows. -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#21285): https://lists.fd.io/g/vpp-dev/message/21285 Mute This Topic: https://lists.fd.io/mt/90680910/21656 Mute #socket-api:https://lists.fd.io/g/vpp-dev/mutehashtag/socket-api Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] #socket-api get stuck in socket function
Hi,
Are you trying to run the test app through LDP? If yes, sharing one epoll fd
between two threads might be the source of the issues, although hard to say
what could go wrong.
With respect to your app, could you run it from gdb and check where it’s stuck?
Regards,
Florin
> On Apr 25, 2022, at 2:16 AM, 25956760...@gmail.com wrote:
>
> Hi All ,
>
> I'm trying to use nonblock socket with epoll.
> I wonder why I sometimes get stuck in socket function when I use VCL .
> Code as following:
> printf ("before socket\n");
> if ((c_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
> perror("create socket fail.\n");
> exit(0);
> }
> printf ("after socket\n");
> The only output is "before socket",socket function even dosen't return.
> Thank you very much
>
> complete code is in attachments
>
>
>
>
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