[RSPlib-Discusssion] Having trouble compiling applications
dreibh at iem.uni-due.de
Fri Mar 13 11:32:46 CET 2009
see my comments inline.
On Freitag 13 März 2009, Martin Kirch Dige wrote:
> Hi everyone
> I am having some troubles using RSPlib for a VoIP project. I have only
> recently started using RSPlib and is so far having troubles when
> compiling applications which utilises RSPlib.
> OS: Debian
> RSPlib: v.2.6.0 (using kernel-sctp)
> I have installed RSPlib without problems. It was configured with the
> following options:
> ./configure --enable-qt --disable-hsmgtveridy --disable-maintainer-mode
> --enable-shared --disable-static --enable-csp
> followed by
> make install (as root)
> which copied various header files has been placed in
> /usr/local/include/rserpool/ during make install.
> The troubles arises when I try to develop my own applications which
> utilises RSPlib. These applications are not positioned where the rsplib
> files were extracted during the installation since I prefer having these
> application located separately.
> My applications include "rserpool.h", "rserpool-internals.h" etc. and
> they are based on the sample applications (e.g. server) which was
> supplied with rsplib 2.6.0. Now for the actual questions:
> 1. I receive this error when compiling my application:
> undefined reference to `rsp_initinfo'
> The app includes rserpool.h which defines
> void rsp_initinfo(struct rsp_info* info);
> however it seems that the function is never defined. Have been browsing
> the source code and can see that the function is defined in
> rsputilities.c in the rsplib source files. There is however no
> rsputilities.h header file in /usr/local/include/rserpool/. Is this due
> to en error or am I simply not using rsplib correctly?
> I have read through the /High Availability using Reliable Server
> Pooling/ paper as suggested elsewhere on the mailing list - but I still
> find it a bit difficult to understand the RSPlib API, since there
> documentation as a bit limited.
rsp_initinfo() is defined in rsputilities.c, which is compiled into the rsplib
library. Including "rserpool.h" and linkling -lrsplib should work. Could you
provide us the complete errors and warnings of the compile run?
> 2. All need to design both a PE and PU applications. Which examples from
> the rsplib source files would you recommend as the best examples of how
> to develop a PE and a PU application?
For the PE, have a look at server.cc. It is a starter for different services
(e.g. Echo or Discard - the are implemented in standardservices.cc). To make
programming of these example services easier, I wrote two C++ API wrappers:
tcplikeserver.cc (which starts a new thread to handle each session; like
common TCP-based services) and udplikeserver.cc (which handles messages from
all sessions; i.e. request -> response). The examples in standardservices.cc
should - hopefully - make the idea clearer. For a more complex service, have
a look into fractalgeneratorservice.cc (this is the service for the Fractal
On the PU side, have a look into terminal.c (which can be used with Echo,
Discard, etc.). This example is quite simple and should - hopefully - be easy
to understand. Again, a more complex example - using multiple sessions in
different threads - is fractalpooluser.cc.
> Any help will be greatly appreciated - thanks in advance
If you have more questions, just write them on the mailing list.
Dr. Thomas Dreibholz
University of Duisburg-Essen, Room ES210
Inst. for Experimental Mathematics Ellernstraße 29
Computer Networking Technology Group D-45326 Essen/Germany
E-Mail: dreibh at iem.uni-due.de
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