/**
* Check if there are messages from the connected nodes, update the details for the nodes and send it to the clients.
*/
void SpaceBroadcaster::update() {
// ofLog(OF_LOG_NOTICE, "num connected clients %d ", getNumClients());
if (isServerActive()) {
//for each client lets answer their message
for (int i = 0; i < getNumClients(); i++) {
string msg = receive(i);
if (!msg.empty()) {
handleMessage(i, msg);
}
}
}
}
uint32_t MSRAccessor::getNumInstances(){
uint32_t num_instances;
getNumClients(connect, &num_instances);
return num_instances;
}
bool gmshLocalNetworkClient::run()
{
new_connection:
setPid(0); // dummy pid, should be non-negative
onelabGmshServer *server = new onelabGmshServer(this);
int sock = server->LaunchClient();
if(sock < 0){
// could not establish the connection: aborting
server->Shutdown();
delete server;
return false;
}
Msg::StatusBar(true, "Running '%s'...", _name.c_str());
setGmshServer(server);
while(1) {
if(getExecutable().empty() && !CTX::instance()->solver.listen){
// we stopped listening to the special "Listen" client
break;
}
// loop over all the clients (usually only one, but can be more if we
// spawned subclients) and check if data is available for one of them
bool stop = false, haveData = false;
gmshLocalNetworkClient *c = 0;
std::vector<gmshLocalNetworkClient*> toDelete;
for(int i = 0; i < getNumClients(); i++){
c = getClient(i);
if(c->getPid() < 0){
if(c == this){ // the "master" client stopped
stop = true;
break;
}
else{
// this subclient is not active anymore: shut down and delete its
// server and mark the client for deletion
GmshServer *s = c->getGmshServer();
c->setGmshServer(0);
c->setFather(0);
if(s){
s->Shutdown();
delete s;
}
toDelete.push_back(c);
continue;
}
}
GmshServer *s = c->getGmshServer();
if(!s){
Msg::Error("Abnormal server termination (no valid server)");
stop = true;
break;
}
else{
int ret = s->NonBlockingWait(0.001, -1.);
if(ret == 0){ // we have data from this particular client
haveData = true;
break;
}
else if(ret == 3){ // pass to the next client
continue;
}
else{ // an error occurred
stop = true;
break;
}
}
}
for(unsigned int i = 0; i < toDelete.size(); i++){
removeClient(toDelete[i]);
delete toDelete[i];
}
// break the while(1) if the master client has stopped or if we encountered
// a problem
if(stop) break;
// if data is available try to get the message from the corresponding
// client; break the while(1) if we could not receive the message
if(haveData && !c->receiveMessage(this)) break;
// break the while(1) if the master client has stopped
if(c == this && c->getPid() < 0) break;
}
// we are done running the (master) client: delete the servers and the
// subclients, if any remain (they should have been deleted already).
std::vector<gmshLocalNetworkClient*> toDelete;
for(int i = 0; i < getNumClients(); i++){
gmshLocalNetworkClient *c = getClient(i);
GmshServer *s = c->getGmshServer();
c->setGmshServer(0);
c->setFather(0);
if(s){
s->Shutdown();
delete s;
}
if(c != this){
if(c->getPid() > 0)
Msg::Error("Subclient %s was not stopped correctly", c->getName().c_str());
toDelete.push_back(c);
}
}
for(unsigned int i = 0; i < toDelete.size(); i++){
removeClient(toDelete[i]);
delete toDelete[i];
}
Msg::StatusBar(true, "Done running '%s'", _name.c_str());
if(getExecutable().empty()){
Msg::Info("Client disconnected: starting new connection");
goto new_connection;
}
return true;
}
