Re: [vpp-dev] VPP C API application compilation issue on using S and W functions
Hi Ole, As suggested by you, we are trying vapi for our SRv6 use case, we were able to generate sr.api.json for sr.api using src/tools/vppapigen/generate_json.py. We then generated sr.api.vapi.h using src/vpp-api/vapi/vapi_c_gen.py. On going through sr.api.vapi.h, we found a function *vapi_set_vapi_msg_sr_policies_details_event_cb* (for *sr_policies_details* message), at first it seems that it registers a callback function for events, but we couldn't figure out what kind of events. Could you please help us understand its significance? Thanks and Regards, Chinmaya Agarwal. -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#16849): https://lists.fd.io/g/vpp-dev/message/16849 Mute This Topic: https://lists.fd.io/mt/75100285/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: Private: Re: [vpp-dev] VPP C API application compilation issue on using S and W functions
If you want to pinch code from vpp_api_test, please read and understand it:
/* W: wait for results, with timeout */
#define W(ret) \
do {\
f64 timeout = vat_time_now (vam) + 1.0; \
socket_client_main_t *scm = vam->socket_client_main; \
ret = -99; \
\
if (scm && scm->socket_enable) \
vl_socket_client_read (5); \
while (vat_time_now (vam) < timeout) { \
if (vam->result_ready == 1) { \
ret = vam->retval; \
break; \
} \
vat_suspend (vam->vlib_main, 1e-5); \
} \
} while(0);
So what does the “W” macro do? It causes the vpp_api_test main thread to block
until vpp answers and the vpp_api_test rx pthread processes the reply, or a
timeout occurs.
You’ll need to declare and initialize a clib_time_t, a vat_main_t, then supply
the missing routines:
f64
vat_time_now (vat_main_t * vam)
{
return clib_time_now (>clib_time);
}
void
vat_suspend (vlib_main_t * vm, f64 interval)
{
/* do nothing to busy-wait, or call usleep, or call CLIB_PAUSE */
}
Given that you’re not using vpp_api_test, you might decide to use
vat_helper_macros.h as a guide and fabricate something which seems more at home
in your application.
HTH... Dave
From: Chinmaya Aggarwal
Sent: Friday, June 26, 2020 7:59 AM
To: Dave Barach (dbarach)
Subject: Private: Re: [vpp-dev] VPP C API application compilation issue on
using S and W functions
Hi Dave,
We have our application (using VPP C API) running outside of VPP. We linked
vpp libs in our application (vatplugin, vppinfra, vlibmemoryclient, svm,
vppapiclient). Attaching file vpp_connect_test.c that creates connection with
VPP and calls VPP C API to modify a sr policy. We have used function S to send
the message and W to wait for its reply. On compiling this C file we are
getting the following error : -
root@ggnlabvm-hnsnfvsdn03:~/vpp_api_test# make
gcc -Wall -g-c -o vpp_connect_test.o vpp_connect_test.c
gcc -Wall -g -I/usr/include/vpp_plugins -I/usr/include/ -o api_exec
vpp_connect_test.o -Wl,--start-group -lvatplugin -lvppinfra -lvlibmemoryclient
-lsvm -lvppapiclient -Wl,--end-group -lpthread -lm -lrt -ldl
vpp_connect_test.o: In function `del_sl_pol2_index6':
/root/vpp_api_test/vpp_connect_test.c:97: undefined reference to `vat_time_now'
/root/vpp_api_test/vpp_connect_test.c:97: undefined reference to `vat_suspend'
/root/vpp_api_test/vpp_connect_test.c:97: undefined reference to `vat_time_now'
collect2: error: ld returned 1 exit status
Makefile:35: recipe for target 'api_exec' failed
make: *** [api_exec] Error 1
Is there any library that needs to be linked and we have missed it? If not, can
we use S and W function in an external C application, in a way similar to how
VPP uses it?
Thanks and Regards,
Chinmaya Agarwal.
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Re: [vpp-dev] VPP C API application compilation issue on using S and W functions
Chinmaya, I don't think linking in vatplugin is a "supported" interface. Meaning it can change or go away at no notice. If you build a C application you'd likely be happier with using VAPI. Cheers, Ole > On 26 Jun 2020, at 13:58, Chinmaya Aggarwal wrote: > > Hi Dave, > We have our application (using VPP C API) running outside of VPP. We linked > vpp libs in our application (vatplugin, vppinfra, vlibmemoryclient, svm, > vppapiclient). Attaching file vpp_connect_test.c that creates connection with > VPP and calls VPP C API to modify a sr policy. We have used function S to > send the message and W to wait for its reply. On compiling this C file we are > getting the following error : - > root@ggnlabvm-hnsnfvsdn03:~/vpp_api_test# make > gcc -Wall -g-c -o vpp_connect_test.o vpp_connect_test.c > gcc -Wall -g -I/usr/include/vpp_plugins -I/usr/include/ -o api_exec > vpp_connect_test.o -Wl,--start-group -lvatplugin -lvppinfra > -lvlibmemoryclient -lsvm -lvppapiclient -Wl,--end-group -lpthread -lm -lrt > -ldl > vpp_connect_test.o: In function `del_sl_pol2_index6': > /root/vpp_api_test/vpp_connect_test.c:97: undefined reference to > `vat_time_now' > /root/vpp_api_test/vpp_connect_test.c:97: undefined reference to `vat_suspend' > /root/vpp_api_test/vpp_connect_test.c:97: undefined reference to > `vat_time_now' > collect2: error: ld returned 1 exit status > Makefile:35: recipe for target 'api_exec' failed > make: *** [api_exec] Error 1 > > Is there any library that needs to be linked and we have missed it? If not, > can we use S and W function in an external C application, in a way similar to > how VPP uses it? > > Thanks and Regards, > Chinmaya Agarwal. -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#16830): https://lists.fd.io/g/vpp-dev/message/16830 Mute This Topic: https://lists.fd.io/mt/75100285/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] VPP C API application compilation issue on using S and W functions
Hi Dave, We have our application (using VPP C API) running outside of VPP. We linked vpp libs in our application ( vatplugin, vppinfra, vlibmemoryclient, svm, vppapiclient). Attaching file vpp_connect_test.c that creates connection with VPP and calls VPP C API to modify a sr policy. We have used function S to send the message and W to wait for its reply. On compiling this C file we are getting the following error : - root@ggnlabvm-hnsnfvsdn03:~/vpp_api_test# make gcc -Wall -g -c -o vpp_connect_test.o vpp_connect_test.c gcc -Wall -g -I/usr/include/vpp_plugins -I/usr/include/ -o api_exec vpp_connect_test.o -Wl,--start-group -lvatplugin -lvppinfra -lvlibmemoryclient -lsvm -lvppapiclient -Wl,--end-group -lpthread -lm -lrt -ldl vpp_connect_test.o: In function `del_sl_pol2_index6': /root/vpp_api_test/vpp_connect_test.c:97: undefined reference to `vat_time_now' /root/vpp_api_test/vpp_connect_test.c:97: undefined reference to `vat_suspend' /root/vpp_api_test/vpp_connect_test.c:97: undefined reference to `vat_time_now' collect2: error: ld returned 1 exit status Makefile:35: recipe for target 'api_exec' failed make: *** [api_exec] Error 1 Is there any library that needs to be linked and we have missed it? If not, can we use S and W function in an external C application, in a way similar to how VPP uses it? Thanks and Regards, Chinmaya Agarwal. -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#16826): https://lists.fd.io/g/vpp-dev/message/16826 Mute This Topic: https://lists.fd.io/mt/75100285/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] VPP C API application compilation issue on using S and W functions
Ok, and how can we use S and W functions in our application to send request and wait for reply? -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#16818): https://lists.fd.io/g/vpp-dev/message/16818 Mute This Topic: https://lists.fd.io/mt/75100285/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] VPP C API application compilation issue on using S and W functions
Unless you’re doing vector processing, vlib is not useful. Here is the CMakeLists.txt entry for vpp_api_test. It’s not likely that you’ll need libvatplugin.so, but you get the idea... ## # vpp_api_test ## add_vpp_executable(vpp_api_test ENABLE_EXPORTS SOURCES api_format.c main.c plugin.c json_format.c types.c ip_types_api.c ip_types.c protocols.def DEPENDS api_headers LINK_LIBRARIES vlibmemoryclient svm vatplugin vppinfra Threads::Threads rt m dl crypto ) From: vpp-dev@lists.fd.io On Behalf Of Chinmaya Aggarwal Sent: Thursday, June 25, 2020 7:02 AM To: vpp-dev@lists.fd.io Subject: Re: [vpp-dev] VPP C API application compilation issue on using S and W functions I am following fd.io wiki link https://wiki.fd.io/view/VPP/How_To_Use_The_C_API It says so. Are we not suppose to link vlib? -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#16817): https://lists.fd.io/g/vpp-dev/message/16817 Mute This Topic: https://lists.fd.io/mt/75100285/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] VPP C API application compilation issue on using S and W functions
I am following fd.io wiki link https://wiki.fd.io/view/VPP/How_To_Use_The_C_API It says so. Are we not suppose to link vlib? -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#16816): https://lists.fd.io/g/vpp-dev/message/16816 Mute This Topic: https://lists.fd.io/mt/75100285/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] VPP C API application compilation issue on using S and W functions
Why are you linking against vlib? From: vpp-dev@lists.fd.io On Behalf Of Chinmaya Aggarwal Sent: Thursday, June 25, 2020 6:48 AM To: vpp-dev@lists.fd.io Subject: [vpp-dev] VPP C API application compilation issue on using S and W functions Hi, We are testing VPP C API for our use case. We have a scenario where we want to wait for the reply of our API request. For this, we are trying to use S and W functions defined in src/vlibapi/vat_helper_macros.h. But we get the following error on compiling our source code : - root@ggnlabvm-hnsnfvsdn03:~/vpp_api_test# make gcc -Wall -g -I/usr/include/vpp_plugins -I/usr/include/ -o vpp_api_test vpp_connect.o -Wl,--start-group -lvatplugin -lvppinfra -lvlibmemoryclient -lsvm -lvlib -lvppapiclient -Wl,--end-group -lpthread -lm -lrt -ldl vpp_connect.o: In function `del_sl_pol2_index6': /root/vpp_api_test/vpp_connect.c:780: undefined reference to `vat_time_now' /root/vpp_api_test/vpp_connect.c:780: undefined reference to `vat_suspend' /root/vpp_api_test/vpp_connect.c:780: undefined reference to `vat_time_now' /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/libvlib.so: undefined reference to `stat_segment_register_gauge' collect2: error: ld returned 1 exit status Makefile:37: recipe for target 'vpp_api_test' failed make: *** [vpp_api_test] Error 1 Can anyone please suggest what is wrong here? Thanks and Regards, Chinmaya Agarwal. -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#16815): https://lists.fd.io/g/vpp-dev/message/16815 Mute This Topic: https://lists.fd.io/mt/75100285/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
[vpp-dev] VPP C API application compilation issue on using S and W functions
Hi, We are testing VPP C API for our use case. We have a scenario where we want to wait for the reply of our API request. For this, we are trying to use S and W functions defined in src/vlibapi/vat_helper_macros.h. But we get the following error on compiling our source code : - root@ggnlabvm-hnsnfvsdn03:~/vpp_api_test# make gcc -Wall -g -I/usr/include/vpp_plugins -I/usr/include/ -o vpp_api_test vpp_connect.o -Wl,--start-group -lvatplugin -lvppinfra -lvlibmemoryclient -lsvm -lvlib -lvppapiclient -Wl,--end-group -lpthread -lm -lrt -ldl vpp_connect.o: In function `del_sl_pol2_index6': /root/vpp_api_test/vpp_connect.c:780: undefined reference to `vat_time_now' /root/vpp_api_test/vpp_connect.c:780: undefined reference to `vat_suspend' /root/vpp_api_test/vpp_connect.c:780: undefined reference to `vat_time_now' /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/libvlib.so: undefined reference to `stat_segment_register_gauge' collect2: error: ld returned 1 exit status Makefile:37: recipe for target 'vpp_api_test' failed make: *** [vpp_api_test] Error 1 Can anyone please suggest what is wrong here? Thanks and Regards, Chinmaya Agarwal. -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#16814): https://lists.fd.io/g/vpp-dev/message/16814 Mute This Topic: https://lists.fd.io/mt/75100285/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] VPP C API difference between VPP v20.05 and v 20.01
> We are trying to use VPP C API in our C application to call VPP functionality
> in our system. Our system has different sub systems running different VPP
> versions. We want to have single C application interacting with different
> versions of VPP. We started with reading SRv6 policy and steering policy data
> using VPP C API's sr_steering_pol_dump and sr_policies_dump structures. But,
> while testing with different version, we found differences during data
> reading in handler functions.
>
> Till VPP v20.01, fields in structures sr_policies_details and
> sr_steering_pol_details are as shown below : -
> define sr_policies_details
> {
> u32 context;
> vl_api_srv6_sid_t bsid;
> u8 type;
> u8 is_encap;
> u32 fib_table;
> u8 num_sid_lists;
> vl_api_srv6_sid_list_t sid_lists[num_sid_lists];
> };
>
> define sr_steering_pol_details
> {
> u32 context;
> u8 traffic_type;
> u32 fib_table;
> u8 prefix_addr[16];
> u32 mask_width;
> u32 sw_if_index;
> vl_api_srv6_sid_t bsid;
> };
>
> From VPP v20.05, fields in structures sr_policies_details and
> sr_steering_pol_details are as shown below : -
> define sr_policies_details
> {
> u32 context;
> vl_api_ip6_address_t bsid;
> bool is_spray;
> bool is_encap;
> u32 fib_table;
> u8 num_sid_lists;
> vl_api_srv6_sid_list_t sid_lists[num_sid_lists];
> };
> define sr_steering_pol_details
> {
> u32 context;
> vl_api_sr_steer_t traffic_type;
> u32 fib_table;
> vl_api_prefix_t prefix;
> vl_api_interface_index_t sw_if_index;
> vl_api_ip6_address_t bsid;
> };
>
> Our handler functions has following signatures : -
> static void
> vl_api_sr_steering_pol_details_t_handler(vl_api_sr_steering_pol_details_t *
> mp)
> static void vl_api_sr_policies_details_t_handler(vl_api_sr_policies_details_t
> * mp)
>
> Is there a way to abstract this difference and use the same piece of code for
> both versions of VPP?
Yes, but you would have to build your own wrapper.
Cheers,
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[vpp-dev] VPP C API difference between VPP v20.05 and v 20.01
We are trying to use VPP C API in our C application to call VPP functionality
in our system. Our system has different sub systems running different VPP
versions. We want to have single C application interacting with different
versions of VPP. We started with reading SRv6 policy and steering policy data
using VPP C API's sr_steering_pol_dump and sr_policies_dump structures. But,
while testing with different version, we found differences during data reading
in handler functions.
Till VPP v20.01, fields in structures sr_policies_details and
sr_steering_pol_details are as shown below : -
define sr_policies_details
{
u32 context;
vl_api_srv6_sid_t bsid;
u8 type;
u8 is_encap;
u32 fib_table;
u8 num_sid_lists;
vl_api_srv6_sid_list_t sid_lists[num_sid_lists];
};
define sr_steering_pol_details
{
u32 context;
u8 traffic_type;
u32 fib_table;
u8 prefix_addr[16];
u32 mask_width;
u32 sw_if_index;
vl_api_srv6_sid_t bsid;
};
>From VPP v20.05, fields in structures sr_policies_details and
>sr_steering_pol_details are as shown below : -
define sr_policies_details
{
u32 context;
vl_api_ip6_address_t bsid;
bool is_spray;
bool is_encap;
u32 fib_table;
u8 num_sid_lists;
vl_api_srv6_sid_list_t sid_lists[num_sid_lists];
};
define sr_steering_pol_details
{
u32 context;
vl_api_sr_steer_t traffic_type;
u32 fib_table;
vl_api_prefix_t prefix;
vl_api_interface_index_t sw_if_index;
vl_api_ip6_address_t bsid;
};
Our handler functions has following signatures : -
static void
vl_api_sr_steering_pol_details_t_handler(vl_api_sr_steering_pol_details_t * mp)
static void vl_api_sr_policies_details_t_handler(vl_api_sr_policies_details_t *
mp)
Is there a way to abstract this difference and use the same piece of code for
both versions of VPP?
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Re: [vpp-dev] VPP C++ API
Hi,
this should fix your issue
https://gerrit.fd.io/r/#/c/13349/
Thanks,
Klement
On Mon, 2018-07-02 at 13:57 +0300, Alexander Gryanko wrote:
> Stack trace for thread 2:
>
> Thread 2 "main" received signal SIGABRT, Aborted.
> [Switching to Thread 0x7fffedbff700 (LWP 814141)]
> 0x7529c428 in __GI_raise (sig=sig@entry=6) at
> ../sysdeps/unix/sysv/linux/raise.c:54
> 54 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
> (gdb) bt
> #0 0x7529c428 in __GI_raise (sig=sig@entry=6) at
> ../sysdeps/unix/sysv/linux/raise.c:54
> #1 0x7529e02a in __GI_abort () at abort.c:89
> #2 0x75294bd7 in __assert_fail_base (fmt=,
> assertion=assertion@entry=0x75bcb5f5 "id <=
> __vapi_metadata.count",
> file=file@entry=0x75bcb530
> "/place/home/xpahos/git/vpp/build-data/../src/vpp-api/vapi/vapi.c",
> line=line@entry=696, function=function@entry=0x75bcb6f0
> <__PRETTY_FUNCTION__.39669> "vapi_msg_is_with_context") at
> assert.c:92
> #3 0x75294c82 in __GI___assert_fail
> (assertion=assertion@entry=0x75bcb5f5
> "id <= __vapi_metadata.count", file=file@entry=0x75bcb530
> "/place/home/xpahos/git/vpp/build-data/../src/vpp-api/vapi/vapi.c",
> line=line@entry=696, function=function@entry=0x75bcb6f0
> <__PRETTY_FUNCTION__.39669> "vapi_msg_is_with_context") at
> assert.c:101
> #4 0x75bcac0b in vapi_msg_is_with_context (id=id@entry=32001
> 71710)
> at /place/home/xpahos/git/vpp/build-data/../src/vpp-
> api/vapi/vapi.c:696
> #5 0x7646f2a0 in vapi::Connection::dispatch (time=5,
> limit=0x0,
> this=0x61109500) at
> /place/home/xpahos/git/vpp/build-root/install-vpp-
> native/vpp/include/vapi/vapi.hpp:270
> #6 VOM::HW::cmd_q::rx_run (this=0x61007d40) at
> /place/home/xpahos/git/vpp/build-data/../extras/vom/vom/hw.cpp:45
> #7 0x758ffc80 in ?? () from
> /usr/lib/x86_64-linux-gnu/libstdc++.so.6
> #8 0x750516ba in start_thread (arg=0x7fffedbff700) at
> pthread_create.c:333
> #9 0x7536e41d in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
>
> Values:
>
> Thread 2 "main" hit Breakpoint 1, vapi_msg_is_with_context (id=id@ent
> ry=130)
> at /place/home/xpahos/git/vpp/build-data/../src/vpp-
> api/vapi/vapi.c:696
> 696 assert (id <= __vapi_metadata.count);
> (gdb) print id
> $1 = 130
> (gdb) c
> Continuing.
> Mon Jul 2 13:52:37 2018 [debug]rpc_cmd.hpp:120 operator()() itf-
> events 0
> Started
>
> Thread 2 "main" hit Breakpoint 1, vapi_msg_is_with_context
> (id=id@entry=3200171710)
> at /place/home/xpahos/git/vpp/build-data/../src/vpp-
> api/vapi/vapi.c:696
> 696 assert (id <= __vapi_metadata.count);
> (gdb) print id
> $2 = 3200171710
>
> Shared memory message:
>
> (gdb) print shm_data_size
> $3 = 10
> (gdb) print shm_data
> $4 = (void *) 0x30045a74
> (gdb) x/10h 0x30045a74
> 0x30045a74: 5376 0 0 0 0 0 0 0
> 0x30045a84: 0 0
>
> On Mon, 2 Jul 2018 at 10:40, Klement Sekera
> wrote:
>
> >
> > Hi,
> >
> > can you please run in gdb (or open core) and pass us a stack trace?
> >
> > Thanks,
> > Klement
> >
> > On Sun, 2018-07-01 at 19:36 -0700, xpa...@gmail.com wrote:
> > >
> > > Hello,
> > > I'm trying to understand how works VOM wrapper for C++ API.
> > > VOM manager header: https://pastebin.com/BgG7td5s
> > > VOM manager cpp: https://pastebin.com/890jjUJm
> > > main.cpp:
> > >
> > > int main() {
> > > TVppManager manager;
> > > std::cout << "Starting\n";
> > > manager.Start();
> > >
> > > sleep(60);
> > >
> > > manager.Stop();
> > > }
> > >
> > > When I'm trying to run sudo ./main a I got error:
> > > Starting
> > > Calling connect
> > > Manager is connected
> > > Mon Jul 2 05:33:55 2018 [debug]hw.cpp:129 write() itf-events
> > > Mon Jul 2 05:33:55 2018 [debug]rpc_cmd.hpp:120 operator()() itf-
> > > events 0
> > > Started
> > > main: /place/home/xpahos/git/vpp/build-data/../src/vpp-
> > > api/vapi/vapi.c:696: vapi_msg_is_with_context: Assertion `id <=
> > > __vapi_metadata.count' failed.
> > > Aborted
> > >
> > > I found that id looks like unsigned value overflow. How can I
> > > debug
> > > this? I don't see anything in trace dump.
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Re: [vpp-dev] VPP C++ API
Hi,
I also faced this type of issue, there is a keep alive message, which VPP
keep on sending to its client, and if you don't have it's registration,
client app crashes.
Can you print the message id and you can refer various VPP CLI
show api messag
show api client
show api ring
etc
Regards,
Chetan Bhasin
On Mon, Jul 2, 2018, 13:10 Klement Sekera via Lists.Fd.Io wrote:
> Hi,
>
> can you please run in gdb (or open core) and pass us a stack trace?
>
> Thanks,
> Klement
>
> On Sun, 2018-07-01 at 19:36 -0700, xpa...@gmail.com wrote:
> > Hello,
> > I'm trying to understand how works VOM wrapper for C++ API.
> > VOM manager header: https://pastebin.com/BgG7td5s
> > VOM manager cpp: https://pastebin.com/890jjUJm
> > main.cpp:
> >
> > int main() {
> > TVppManager manager;
> > std::cout << "Starting\n";
> > manager.Start();
> >
> > sleep(60);
> >
> > manager.Stop();
> > }
> >
> > When I'm trying to run sudo ./main a I got error:
> > Starting
> > Calling connect
> > Manager is connected
> > Mon Jul 2 05:33:55 2018 [debug]hw.cpp:129 write() itf-events
> > Mon Jul 2 05:33:55 2018 [debug]rpc_cmd.hpp:120 operator()() itf-
> > events 0
> > Started
> > main: /place/home/xpahos/git/vpp/build-data/../src/vpp-
> > api/vapi/vapi.c:696: vapi_msg_is_with_context: Assertion `id <=
> > __vapi_metadata.count' failed.
> > Aborted
> >
> > I found that id looks like unsigned value overflow. How can I debug
> > this? I don't see anything in trace dump.
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Re: [vpp-dev] VPP C++ API
Hi,
can you please run in gdb (or open core) and pass us a stack trace?
Thanks,
Klement
On Sun, 2018-07-01 at 19:36 -0700, xpa...@gmail.com wrote:
> Hello,
> I'm trying to understand how works VOM wrapper for C++ API.
> VOM manager header: https://pastebin.com/BgG7td5s
> VOM manager cpp: https://pastebin.com/890jjUJm
> main.cpp:
>
> int main() {
> TVppManager manager;
> std::cout << "Starting\n";
> manager.Start();
>
> sleep(60);
>
> manager.Stop();
> }
>
> When I'm trying to run sudo ./main a I got error:
> Starting
> Calling connect
> Manager is connected
> Mon Jul 2 05:33:55 2018 [debug]hw.cpp:129 write() itf-events
> Mon Jul 2 05:33:55 2018 [debug]rpc_cmd.hpp:120 operator()() itf-
> events 0
> Started
> main: /place/home/xpahos/git/vpp/build-data/../src/vpp-
> api/vapi/vapi.c:696: vapi_msg_is_with_context: Assertion `id <=
> __vapi_metadata.count' failed.
> Aborted
>
> I found that id looks like unsigned value overflow. How can I debug
> this? I don't see anything in trace dump.
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[vpp-dev] VPP C++ API
Hello,
I'm trying to understand how works VOM wrapper for C++ API.
VOM manager header: https://pastebin.com/BgG7td5s
VOM manager cpp: https://pastebin.com/890jjUJm
main.cpp:
int main() {
TVppManager manager;
std::cout << "Starting\n";
manager.Start();
sleep(60);
manager.Stop();
}
When I'm trying to run sudo ./main a I got error:
Starting
Calling connect
Manager is connected
Mon Jul 2 05:33:55 2018 [debug]hw.cpp:129 write() itf-events
Mon Jul 2 05:33:55 2018 [debug]rpc_cmd.hpp:120 operator()() itf-events 0
Started
main: /place/home/xpahos/git/vpp/build-data/../src/vpp-api/vapi/vapi.c:696:
vapi_msg_is_with_context: Assertion `id <= __vapi_metadata.count' failed.
Aborted
I found that id looks like unsigned value overflow. How can I debug this? I
don't see anything in trace dump.
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