int login()//return 1 success
{
USER usr;
int i=usr.userid;
printf("a login request\n");
c_lseek(user_list_fd,i*USR_LEN,SEEK_SET);
c_read(user_list_fd,&usr,USR_LEN);
int check;
check= strcmp(usr.password,user_temp_p.password);
if(check==0)//验证成功，将status置为1，写回文件。可以考虑建一个在线用户的数据结构；
{
usr.status=1;
c_lseek(user_list_fd,-USR_LEN,SEEK_CUR);
c_write(user_list_fd,&usr,USR_LEN);
c_send(sockfd,(USER*)usr,USR_LEN,0);
return 1;
}
else
{
printf("user:%d login error\n",usr.userid);
usr.status=0;
c_send(sockfd,(USER*)usr,USR_LEN,0);
return 0;
}
}
int
send(long sd, const void *buf, long len, long flags)
{
int ret;
OS_mutex_lock(g_main_mutex, &mtx_key);
ret = c_send(sd, buf, len, flags);
OS_mutex_unlock(g_main_mutex, mtx_key);
return(ret);
}
int chis_transations()
{
int i=chis_temp_p.count;
int max;
CHIS chis;
memset(&chis,0,HSTR_LEN);
c_lseek(recordfd,-HSTR_LEN,SEEK_END);
c_read(recordfd,&chis,HSTR_LEN);
max=chis.count;//get the count of all the history msg
//send the message from i to the latest msg to cli
for(i++;i<=max;i++)
{
c_lseek(recordfd,HSTR_LEN*i,SEEK_SET);
c_read(recordfd,&chis,HSTR_LEN);
c_send(conn,&chis,HSTR_LEN,0);//send to conn,conn is the socket for r/w
}
return 0;
}
