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#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include "chat.hpp"
#include "rooms.hpp"
static const int qlen_for_listen = 6;
void ChatSession::Send(const char *msg)
{
CONSOLE_LOG("%s", msg);
write(GetFd(), msg, strlen(msg));
}
void ChatSession::Handle(bool r, bool w)
{
if(!r)
return;
// this functions create for support any client, not one WantChat client:
if(buf_used >= (int)sizeof(buffer)) {
buf_used = 0;
ignoring = true;
}
if(ignoring) {
CONSOLE_LOG("Ignore the message, it's so big\n");
ReadAndIgnore();
}
else
ReadAndCheck();
}
void ChatSession::ReadAndIgnore()
{
int rc = read(GetFd(), buffer, sizeof(buffer));
CONSOLE_LOG("readI return %d bytes\n", rc);
if(rc < 1) {
the_master->CloseSession(this);
return;
}
for(int i = 0; i < rc; i++)
if(buffer[i] == '\n')
{ // stop ignoring!
CONSOLE_LOG("ReadAndIgnore: find \\n\n");
int rest = rc - i - 1;
if(rest > 0)
memmove(buffer, buffer + i + 1, rest);
buf_used = rest;
ignoring = 0;
CheckLines();
}
}
void ChatSession::ReadAndCheck()
{
int rc = read(GetFd(), buffer+buf_used, sizeof(buffer)-buf_used);
CONSOLE_LOG("readC return %d bytes\n", rc);
if(rc < 1) {
the_master->LeaveMessage(this);
the_master->CloseSession(this);
return;
}
buf_used += rc;
CheckLines();
}
void ChatSession::CheckLines()
{
if(buf_used <= 0)
return;
for(int i = 0; i < buf_used; i++) {
if(buffer[i] == '\n') {
CONSOLE_LOG("[CheckLines] buffer[i] == \\n i = %d\n", i);
buffer[i] = 0;
if(i > 0 && buffer[i-1] == '\r')
buffer[i-1] = 0;
CONSOLE_LOG("printed: %s\n", buffer);
the_master->HandleMessage(this, buffer);
int rest = buf_used - i - 1;
memmove(buffer, buffer + i + 1, rest);
buf_used = rest;
CONSOLE_LOG("[CheckLines] new buf_used = %d\n", buf_used);
CheckLines();
return;
}
}
}
void ChatSession::ChangeName(const char *n_name)
{
for(int i = 0; i < max_name_len; i++)
name[i] = 0;
strcpy(name, n_name);
char *msg = new char[max_msg_len];
sprintf(msg, "Now your name is %s\n", name);
this->Send(msg);
delete[] msg;
}
//////////////////////////////////////////////////////////////
Server::Server(EventSelector *sel, int fd)
: FdHandler(fd), the_selector(sel)
{
the_selector->Add(this);
lobby = new ChatRoom(this, true);
}
Server::~Server()
{
if(room)
delete[] room;
the_selector->Remove(this);
}
Server *Server::Start(EventSelector *sel, int port)
{
int in_d = socket(AF_INET, SOCK_STREAM, 0);
if(in_d == -1)
return 0;
int opt = 1;
setsockopt(in_d, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
struct sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_ANY);
addr.sin_port = htons(port);
int res = bind(in_d, (struct sockaddr*) &addr, sizeof(addr));
if(res == -1)
return 0;
res = listen(in_d, qlen_for_listen);
if(res == -1)
return 0;
return new Server(sel, in_d);
}
void Server::Handle(bool r, bool w)
{
if(!r)
return;
struct sockaddr_in addr;
socklen_t len = sizeof(addr);
int sd = accept(GetFd(), (struct sockaddr*) &addr, &len);
if(sd == -1)
return;
ChatSession *s = new ChatSession(lobby, sd);
lobby->AddSession(s);
the_selector->Add(s);
}
int Server::AddRoom()
{
if(!room) {
room_len = 16;
room = new ChatRoom*[room_len];
for(int i = 0; i < room_len; i++)
room[i] = 0;
}
int id = -1;
for(int i = 0; i < room_len; i++) {
if(room[i] == 0) {
id = 0;
room[i] = new ChatRoom(this, false);
}
}
if(id == -1) {
ChatRoom **tmp = new ChatRoom*[room_len+1];
for(int i = 0; i < room_len; i++) {
tmp[i] = room[i];
}
tmp[room_len] = new ChatRoom(this, false);
room_len += 1;
}
return id;
}
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