epoll + lua 简单游戏服务器（三）

/**断开一个连接，移除epoll监听，通知lua*/
void remove_fd(int fd, lua_State *L)
{
	int ret, idx;
	lua_State *Lx = lua_newthread(L);
	lua_getglobal(Lx, F_ONCLOSE); // 调用lua里的onclose函数
	lua_pushinteger(Lx, fd);
	ret = lua_pcall(Lx, 1, LUA_MULTRET, 0);
	if(ret != 0)
		fprintf(stderr, "%s\n", lua_tostring(Lx, -1));
	lua_settop(L, 0);

        //从fds和clients中删除，释放内存
	idx = fds[fd];
	fds[fd] = -1;
	free(clients[idx]);
	clients[idx] = NULL;

        //移除epoll监听，关闭连接
	struct epoll_event e;
	epoll_ctl(epollfd, EPOLL_CTL_DEL, fd, &e);
	close(fd);
}

/**接受连接请求，多个*/
void accept_fd(int listenfd)
{
	int fd;
	struct sockaddr_in addr;
	socklen_t len = sizeof(addr);
	while((fd = accept(listenfd, (struct sockaddr *)&addr, &len)) > 0)
		add_fd(fd, TRUE);
}