multiclent server connected but not receiving messages properly - c++

Question

I have to create a basic p2p connection with c++ sockets, which means each user has a server for listening onto connections and and a client for connecting, right?
For now I'm trying to create a master client which has a dedicated server and is a client too.
This means creating the server and client in the same program and I have used fork() which creates a child process of the server and the parent is the client. Now, fork works fine and I'm using select() to check sockets for reading data and i have modeled the server on this http://beej.us/guide/bgnet/output/html/multipage/advanced.html#select
Now when I run the program, the master client is able to connect to its own dedicated server, but the messages don't always get received by the server. Sometimes, it receives it, sometimes it doesn't. Any idea why?
Also, when a second client gets connected to the master client, and it doesn't have it's own server for now, the server shows that it gets a new connection, but when I write the message and send it, it doesn't receive any message from the second client, but it receives a message from the master client sometimes and not always.
EDIT: Added cout.flush
EDIT: I think forking the process causes some delay when a client and server run on the same program.
UPDATE: Added the new server code which causes a delay by one message (in response to the comments)
Here's the code.
SERVER CODE
while (1) {
unsigned int s;
readsocks = socks;
if (select(maxsock + 1, &readsocks, NULL, NULL, NULL) == -1) {
perror("select");
return ;
}
for (s = 0; s <= maxsock; s++) {
if (FD_ISSET(s, &readsocks)) {
//printf("socket %d was ready\n", s);
if (s == sock) {
/* New connection */
cout<<"\n New Connection";
cout.flush();
int newsock;
struct sockaddr_in their_addr;
socklen_t size = sizeof(their_addr);
newsock = accept(sock, (struct sockaddr*)&their_addr, &size);
if (newsock == -1) {
perror("accept");
}
else {
printf("Got a connection from %s on port %d\n",
inet_ntoa(their_addr.sin_addr), htons(their_addr.sin_port));
FD_SET(newsock, &socks);
if (newsock > maxsock) {
maxsock = newsock;
}
}
}
else {
/* Handle read or disconnection */
handle(s, &socks);
}
}
}
}
void handle(int newsock, fd_set *set)
{
char buf[256];
bzero(buf, 256);
/* send(), recv(), close() */
if(read(newsock, buf, 256)<=0){
cout<<"\n No data";
FD_CLR(newsock, set);
cout.flush();
}
else {
string temp(buf);
cout<<"\n Server: "<<temp;
cout.flush();
}
/* Call FD_CLR(newsock, set) on disconnection */
}