From: Anthony Minessale <anthony.minessale@gmail.com>

Date: 13 September 2011 00:46:29 GMT+01:00

To: freeswitch-dev@lists.freeswitch.org

Subject: Re: [Freeswitch-dev] Linking to switch_json

Reply-To: freeswitch-dev@lists.freeswitch.org

try building the .c into your mod too on the target list.


On Mon, Sep 12, 2011 at 12:43 PM, Phil Dunks <phil.dunks@netdev.co.uk> wrote:

Hi FreeSWITCH Guru's.

Apologies in advance for silly question - I've been coding Java for last 15

years, so the C is not coming naturally yet.

Met some of you at ClueCon 2011 - had a great time - defeated Ken Rice at

pool in the Lucky Strike - (OK I was lucky).

We have a conferencing customer who is currently using JAIN SLEE and Radisys

(Convedia) media servers.

We are exploring the possibility of replacing all this with FS.

They have a multi-tier account structure with provisionable preferences (e.g

they can have different DTMF menu's and conference behaviour per

account/subscription).

So I have built a mod, which bridges our business logic with mod_conference.

This is all working very well, and I love developing on FS compared to JAIN

SLEE.

So that's the background - here's the problem I'm having.

I am trying to implement some JSON reporting, which we send over rabbit MQ,

and am trying to use the cJSON api in switch_json directly from my mod.

( I have written a couple of mods [mod_rabbit_send and mod_rabbit_recv]

which send and receive rabbit MQ events, and convert them to/from FS custom

events. It uses a MPL library from rabbit.org. Will be happy to contribute

them to the project if you want them. ).

I include switch_json.h in my mod, and the cJSON stuff compiles and installs

ok.

But when I install the mod I get..

2011-09-12 17:56:49.195659 [CRIT] switch_loadable_module.c:928 Error Loading

module /usr/local/freeswitch/mod/mod_netdev.so

**dlopen(/usr/local/freeswitch/mod/mod_netdev.so, 6): Symbol not found:

_cJSON_AddItemToObject

  Referenced from: /usr/local/freeswitch/mod/mod_netdev.so

I have tried all sorts of things in my makefile to get this linking  - to no

avail - I'm out of ideas.

Any help will be greatly appreciated.

Thanks

Phil

Phil Dunks

NetDev Limited

+44 1273 773661

+44 7515 385465

http://www.netdev.co.uk