Demo PubSub server: if PubSub configuration file is not found an assertion is raised
Description
if PubSub configuration file is not found an assertion is raised instead of exiting in error with an explicit message indicating name of file missing or failing to be read
Reproducer
$ cd build/bin
$ rm config_pubsub_server.xml
$ ./pubsub_server
# Info: Server initialized.
# Info: Loaded address space from "./pubsub_server.xml".
# Info: Endpoint and Toolkit configured.
# Info: Server started.
pubsub_server: samples/PubSub_ClientServer/pubsub_server/server.c:466: Server_WritePubSubNodes: Assertion `NULL != fd' failed.
Aborted (core dumped)
Edited by Vincent Monfort