void Publisher::createServices(AvahiClient *client) {
int error;
const char* name = info.getServiceName().c_str();
int port = info.getPort();
if (group == NULL) {
group = avahi_entry_group_new(client, &Publisher::entryGroupCallback, this);
if (group == NULL) {
std::cerr << "Could not create avahi group ("
<< avahi_strerror(avahi_client_errno(client))
<< ")." << std::endl;
return;
}
}
if (avahi_entry_group_is_empty(group)) {
// new group or after reset
error = avahi_entry_group_add_service(group, // group
AVAHI_IF_UNSPEC, // interface
AVAHI_PROTO_UNSPEC, // protocol to announce service with
AVAHI_PUBLISH_USE_MULTICAST, // flags
name, // service name
serviceType, // service type
NULL, // domain
NULL, // host
port, // port
txtDataDeviceName.c_str(),
txtDataProviderClassName.c_str(),
txtDataSerialNumber.c_str(),
NULL); // list of txt records
if (error < 0) {
// error
if (error == AVAHI_ERR_COLLISION) {
// collision with local service name
nextName();
avahi_entry_group_reset(group);
// retry
createServices(client);
} else {
std::cerr << "Could not add service '"
<< name << "' (" << serviceType << ") to avahi group ("
<< avahi_strerror(error) << ")" << std::endl;
return;
}
}
// start registering the service
error = avahi_entry_group_commit(group);
if (error < 0) {
std::cerr << "Could not commit avahi group "
<< "'" << name << "'"
<< " (" << avahi_strerror(error) << ")" << std::endl;
}
}
}
void CommunicationManager::createServices(AvahiClient *c) {
char *n, r[128];
int ret;
/* If this is the first time we're called, let's create a new
* entry group if necessary */
if (!this->group) {
if (!(group = avahi_entry_group_new(c,
CommunicationManager::entryGroupCallback, NULL))) {
cout << "avahi_entry_group_new() failed: " <<
avahi_strerror(avahi_client_errno(c)) << endl;
avahi_simple_poll_quit(simplePoll);
return;
}
}
/* If the group is empty (either because it was just created, or
* because it was reset previously, add our entries. */
if (avahi_entry_group_is_empty(group)) {
cout << "Adding service '" << name << "'" << endl;;
/* Create some random TXT data */
snprintf(r, sizeof(r), "random=%i", rand());
/* We will now add two services and one subtype to the entry
* group. The two services have the same name, but differ in
* the service type (IPP vs. BSD LPR). Only services with the
* same name should be put in the same entry group. */
/* Add the service for GingaMultimodalEvent*/
if ((ret = avahi_entry_group_add_service(group, AVAHI_IF_UNSPEC,
AVAHI_PROTO_UNSPEC, (AvahiPublishFlags)0, name,
"_GingaMultimodalEvent._tcp", NULL, NULL, 1234, "test=blah",
r, NULL)) < 0) {
if (ret == AVAHI_ERR_COLLISION) {
/* A service name collision with a local service happened.
* Let's pick a new name */
n = avahi_alternative_service_name(name);
avahi_free(name);
name = n;
cout << "Service name collision, renaming service to '" <<
name << "'" << endl;
avahi_entry_group_reset(group);
createServices(c);
return;
}
cout << "Failed to add _GingaMultimodalEvent._tcp service: " <<
avahi_strerror(ret) << endl;
avahi_simple_poll_quit(simplePoll);
return;
}
/* Tell the server to register the service */
if ((ret = avahi_entry_group_commit(group)) < 0) {
cout << "Failed to commit entry group: " << avahi_strerror(ret)
<< endl;
avahi_simple_poll_quit(simplePoll);
}
}
}
void PyEntity::createPyServices( const PyEntityInput& input )
{
createServices(*this,input.fServices);
}
