THREADRET tunet_thread(THREAD *self)
{
BOOL hasErr = FALSE;
fd_set rset;
fd_set wset;
fd_set eset;
struct timeval tv;
time_t keepalive_watchDog=0;
tv.tv_sec=2;
tv.tv_usec=0;
int ret,flags;
int maxsock;
int main_retry=0;
char flag,connected=0;
logs_append(g_logs, "TUNET_THREAD_STARTING", NULL, NULL, 0);
while(os_thread_is_running(self) || os_thread_is_paused(self))
{
// printf("main_socket=%d\n",main_socket);
if (keepalive_watchDog) {
if (time(NULL)-keepalive_watchDog>=36) {
if(tunet_keepalive()==ERR)
break;
}
}
if (tunet_state==TUNET_STATE_RECV_REMAINING_DATA || tunet_state==TUNET_STATE_RECV_WELCOME) {
keepalive_watchDog=time(NULL);
}
hasErr=FALSE;
if(tunet_get_state() == TUNET_STATE_NONE)
{
break;
}
if(tunet_get_state() == TUNET_STATE_ERROR)
{
//an server-side error occurs when trying to login/logout
logs_append(g_logs, "TUNET_ERROR", NULL, NULL, 0);
break;
}
if (tunet_state ==TUNET_STATE_LOGOUT) {
if (!connected) {
break;
}
tunet_connect_logout_server();
}
if (tunet_state==TUNET_STATE_LOGOUT||tunet_state==TUNET_STATE_LOGOUT_RECV_LOGOUT) {
hasErr |= (tunet_logout_send_logout() == ERR);
hasErr |= (tunet_logout_recv_logout() == ERR);
if(hasErr)
{
//if an error occurs when LOGOUT, we can just omit it, and exit the thread.
break;
}
os_thread_test_paused(self);
os_sleep(20);
}else {
if(tunet_state == TUNET_STATE_LOGIN){
tunet_connect_main_server();
}
if(tunet_connect_keepalive_server()==ERR){
break;
}
if (tunet_state == TUNET_STATE_KEEPALIVE||tunet_state==TUNET_STATE_RECV_REMAINING_DATA) {
connected=1;
}
FD_ZERO(&rset);
FD_ZERO(&wset);
FD_ZERO(&eset);
maxsock=0;
flag=0;
if (main_socket) {
FD_SET(main_socket, &rset);
FD_SET(main_socket, &wset);
FD_SET(main_socket, &eset);
if (main_socket>=maxsock) {
maxsock=main_socket;
}
flag=1;
}
if (keepalive_socket) {
FD_SET(keepalive_socket,&rset);
FD_SET(keepalive_socket,&eset);
if (keepalive_socket>=maxsock) {
maxsock=keepalive_socket;
}
}
ret=select(maxsock+1,&rset,&wset,&eset,&tv);
if (ret<0) {
logs_append(g_logs, "TUNET_NETWORK_ERROR", "UNKNOWN", NULL, 0);
break;
}else if (ret==0) {
if (tunet_state==TUNET_STATE_LOGIN) {
if (main_retry>=3) {
logs_append(g_logs, "TUNET_NETWORK_ERROR", "MAIN", NULL, 0);
break;
}
main_retry++;
}
os_thread_test_paused(self);
continue;
}
if (flag) {
if (FD_ISSET(main_socket,&wset)) {
tunet_logon_send_tunet_user();
tunet_logon_reply_welcome();
}
if (FD_ISSET(main_socket,&rset)) {
if(tunet_logon_recv_welcome()==ERR){
logs_append(g_logs, "TUNET_NETWORK_ERROR", "RECV_WELCOME", NULL, 0);
break;
}
if(tunet_logon_recv_remaining_data()==ERR){
logs_append(g_logs, "TUNET_NETWORK_ERROR", "RECV_REMAINING_DATA", NULL, 0);
break;
}
}
if (FD_ISSET(main_socket, &eset)) {
logs_append(g_logs, "TUNET_NETWORK_ERROR", "MAIN", NULL, 0);
break;
}
}
if (FD_ISSET(keepalive_socket,&rset)) {
if(tunet_keepalive()==ERR){
logs_append(g_logs, "TUNET_NETWORK_ERROR", "KEEPALIVE", NULL, 0);
break;
}
keepalive_watchDog=time(NULL);
}
if (FD_ISSET(keepalive_socket, &eset)) {
logs_append(g_logs, "TUNET_NETWORK_ERROR", "KEEPALIVE", NULL, 0);
break;
}
os_thread_test_paused(self);
}
}
main_socket = os_socket_tcp_close(main_socket);
keepalive_socket = os_socket_tcp_close(keepalive_socket);
logout_socket = os_socket_tcp_close(logout_socket);
main_socket_buffer = buffer_clear(main_socket_buffer);
keepalive_socket_buffer = buffer_clear(keepalive_socket_buffer);
logout_socket_buffer = buffer_clear(logout_socket_buffer);
tunet_state = TUNET_STATE_NONE;
logs_append(g_logs, "TUNET_THREAD_EXITING", NULL, NULL, 0);
thread_tunet = os_thread_free(thread_tunet);
return 0;
}
THREADRET tunet_thread(THREAD *self)
{
BOOL hasErr = FALSE;
logs_append(g_logs, "TUNET_THREAD_STARTING", NULL, NULL, 0);
while(os_thread_is_running(self) || os_thread_is_paused(self))
{
if(tunet_state == TUNET_STATE_LOGIN)
tunet_connect_main_server();
hasErr = FALSE;
hasErr |= (tunet_logon_send_tunet_user() == ERR);
hasErr |= (tunet_logon_recv_welcome() == ERR);
hasErr |= (tunet_logon_reply_welcome() == ERR);
hasErr |= (tunet_logon_recv_remaining_data() == ERR);
hasErr |= (tunet_connect_keepalive_server() == ERR);
hasErr |= (tunet_keepalive() == ERR);
if(hasErr)
{
/*
COMMENT: We won't help the user to retry for some network error shoud be
dealt by the users.
//a network error occurs when try to LOGIN
main_socket = os_socket_tcp_close(main_socket);
keepalive_socket = os_socket_tcp_close(keepalive_socket);
tunet_state = TUNET_STATE_LOGIN;
continue;
*/
break;
}
hasErr = FALSE;
if(tunet_state == TUNET_STATE_LOGOUT)
tunet_connect_logout_server();
hasErr |= (tunet_logout_send_logout() == ERR);
hasErr |= (tunet_logout_recv_logout() == ERR);
if(hasErr)
{
//if an error occurs when LOGOUT, we can just omit it, and exit the thread.
break;
}
if(tunet_get_state() == TUNET_STATE_NONE)
{
//nothing to do , exit the thread
break;
}
if(tunet_get_state() == TUNET_STATE_ERROR)
{
//an server-side error occurs when trying to login/logout
logs_append(g_logs, "TUNET_ERROR", NULL, NULL, 0);
break;
}
os_thread_test_paused(self);
os_sleep(20);
}
main_socket = os_socket_tcp_close(main_socket);
keepalive_socket = os_socket_tcp_close(keepalive_socket);
logout_socket = os_socket_tcp_close(logout_socket);
main_socket_buffer = buffer_clear(main_socket_buffer);
keepalive_socket_buffer = buffer_clear(keepalive_socket_buffer);
logout_socket_buffer = buffer_clear(logout_socket_buffer);
tunet_state = TUNET_STATE_NONE;
logs_append(g_logs, "TUNET_THREAD_EXITING", NULL, NULL, 0);
thread_tunet = os_thread_free(thread_tunet);
return 0;
}