// 1. user login first
// 2. old user not in meeting and online --> send msg to he and replace he
// 3. old user not in meeting and offline --> replace he and online
// 4. old user in meeting and is not admin and online --> send msg to
// he and replace he and send meeting info to new user and online and
// into meeting and tell other user
// 5. old user in meeting and is admin and online --> same 4
// 6. old user in meeting and is not admin and offline --> 4 (don't
// send msg to he)
// 7. old user in meeting and is admin and offline --> same 4(dont't
// sned msg to he)
int Msm::login(string id, string name, int sockfd)
{
Member *m = new Member(id, name);
Meeting *meeting = NULL;
if (have_member(id)) {
Member *m_old = get_member(id);
m->set_volum(m_old->get_volum());
m->set_status(m_old->get_status());
// close old sockfd
int old_fd;
old_fd = m_old->get_sockfd();
// send msg to old user
if (m_old->is_online()) {
MsmReqMsg msg(id, "close", "duplicate user");
msg.send_msg(old_fd);
}
#if 1
if (old_fd != -1 && old_fd != sockfd) {
if (epoll_ctl(epollfd, EPOLL_CTL_DEL, old_fd, &ev) == -1) {
LOG(LOG_ERROR, "epoll_ctl del %d failed: %s", old_fd, strerror(errno));
return errno;
}
close(old_fd);
m_old->set_sockfd(-1);
LOG(LOG_INFO, "close sockfd: %d", old_fd);
}
#endif
// delete old user in meeting
meeting = m_old->get_meeting();
if (meeting != NULL) {
meeting->del_member(m_old);
}
// delete struct old user
logout(m_old->get_id());
}
register_member(m);
m->set_sockfd(sockfd);
m->set_online();
if (meeting != NULL) {
/// TODO: send meeting info to user
meeting->add_member(m);
}
LOG(LOG_DEBUG, "%s login", id.c_str());
return 0;
}
int Msm::epoll_pollin(int fd)
{
LOG(LOG_DEBUG, "socket: %d EPOLLIN event.", fd);
char buf[1024];
memset(buf, 0, sizeof(buf));
// int rc = recv(events[n].data.fd, buf, sizeof(buf)-1, 0);
struct msghdr msghdr;
struct iovec iov;
memset(&msghdr, 0, sizeof(msghdr));
iov.iov_base = buf;
iov.iov_len = sizeof(buf);
msghdr.msg_iov = &iov;
msghdr.msg_iovlen = 1;
int rc = recvmsg(fd, &msghdr, 0);
if (rc == -1) {
LOG(LOG_ERROR, "socket: %d recvmsg failed: %s", fd, strerror(errno));
return -1;
} else if (rc == 0) {
LOG(LOG_ERROR, "socket: %d recvmsg 0, socket is closed by user.", fd);
if (get_member_byfd(fd) != NULL) {
logout(get_member_byfd(fd)->get_id());
}
return -1;
}
LOG(LOG_DEBUG, "socket: %d recvmsg:\n%s", fd, buf);
Json::Value root;
Json::Reader reader;
if (reader.parse(buf, root, false) == false) {
LOG(LOG_DEBUG, "json parse failed.");
return -1;
}
if (epoll_closefd_before(root["action"].asString(), fd, root["user_id"].asString()) < 0)
return -1;
msm_msg_t msm_msg;
msm_msg.sockfd = fd;
msm_msg.root = root;
msm_msg.msm = this;
actions_handle.find(root["action"].asString())->second(msm_msg);
#if 0
if (root["action"] == "login") {
login(root["user_id"].asString(), root["user_name"].asString(), fd);
// send_test(root["from"].asString());
} else if (root["action"] == "logout") {
logout(root["user_id"].asString());
} else if (root["action"] == "heartbeat") {
} else if (root["action"] == "askmeeting") {
create_meeting(root["meeting_id"].asString(), root["meeting_name"].asString());
get_meeting(root["meeting_id"].asString())->add_member(get_member(root["user_id"].asString()));
get_meeting(root["meeting_id"].asString())->set_admin(root["user_id"].asString());
} else if (root["action"] == "adduser") {
if (get_meeting(root["meeting_id"].asString()) != NULL) {
if (get_member(root["users"].asString()) == NULL) {
Member *m = new Member(root["users"].asString(), "Unkown");
m->set_offline();
register_member(m);
}
get_meeting(root["meeting_id"].asString())->add_member(get_member(root["users"].asString()));
}
} else if (root["action"] == "leavemeeting") {
Meeting *meeting = get_meeting(root["meeting_id"].asString());
if (meeting != NULL) {
Member *m = get_member(root["user_id"].asString());
if (m->get_id() != meeting->get_admin()) {
meeting->del_member(m);
} else {
destroy_meeting(meeting->get_id());
}
}
} else {
}
#endif
epoll_closefd_after(root["action"].asString(), fd, root["user_id"].asString());
dump_members();
dump_meetings();
return 0;
}