function shutta()
{
- log_rd2("SHUTTA!".connection_status());
+ log_rd2("SHUTTA [".connection_status()."] !");
}
-
register_shutdown_function(shutta);
-function unrecerror()
+function blocking_error($is_unrecoverable)
{
GLOBAL $is_page_streaming;
$is_page_streaming = TRUE;
- log_rd2("UNREC_ERROR:".var_export(debug_backtrace()));
- return (sprintf('the_end=true; window.onunload = null; window.onbeforeunload = null; document.location.assign("index.php");'));
+ log_rd2("BLOCKING_ERROR UNREC: ".($is_unrecoverable ? "TRUE" : "FALSE"));
+ return (sprintf(($is_unrecoverable ? 'the_end=true; ' : '').'window.onbeforeunload = null; window.onunload = null; document.location.assign("index.php");'));
}
function page_sync($sess, $page, $table_idx, $table_token)
$user = FALSE;
$curtime = time();
- if (($proxy_step = User::step_get($sess)) == FALSE) {
+ // NOTE: qui forse si potrebbe fallback-are a una User::load_data
+ // anche se non ce ne dovrebbe essere mai la necessità
+ if (($proxy_step = User::load_step($sess)) == FALSE) {
log_only2("R");
- return (FALSE);
+ ignore_user_abort(FALSE);
+ return (blocking_error(TRUE));
}
// log_rd2("M");
/* Sync check (read only without modifications */
ignore_user_abort(TRUE);
if ($first_loop == TRUE) {
- if (($sem = Room::lock_data()) != FALSE) {
+ if (($sem = Room::lock_data(TRUE)) != FALSE) {
// Aggiorna l'expire time lato server
$S_load_stat['U_first_loop']++;
if (($user = User::load_data($proxy_step['i'], $sess)) == FALSE) {
- Room::unlock_data();
+ Room::unlock_data($sem);
ignore_user_abort(FALSE);
- return (unrecerror());
+ return (blocking_error(TRUE));
}
$user->lacc = $curtime;
+ // lacc field updated
User::save_data($user, $user->idx);
if (Room::garbage_time_is_expired($curtime)) {
$S_load_stat['R_garbage']++;
if (($room = Room::load_data()) == FALSE) {
- Room::unlock_data();
+ Room::unlock_data($sem);
ignore_user_abort(FALSE);
- return (unrecerror());
+ return (blocking_error(TRUE));
}
log_main("pre garbage_manager TRE");
$room->garbage_manager(FALSE);
Room::save_data($room);
unset($room);
}
- log_lock("U");
+ log_main("infolock: U");
Room::unlock_data($sem);
ignore_user_abort(FALSE);
- } // if (($sem = Room::lock_data()) != FALSE) {
+ } // if (($sem = Room::lock_data(TRUE)) != FALSE) {
else {
// wait 20 secs, then restart the xhr
ignore_user_abort(FALSE);
} // if ($first_loop == TRUE) {
if ($cur_step == $proxy_step['s']) {
- log_lock("P");
+ log_main("infolock: P");
return (FALSE);
}
else {
if ($user == FALSE) {
do {
ignore_user_abort(TRUE);
- if (($sem = Room::lock_data()) == FALSE)
+ if (($sem = Room::lock_data(FALSE)) == FALSE)
break;
- log_lock("P");
+ log_main("infolock: P");
$S_load_stat['U_heavy']++;
if (($user = User::load_data($proxy_step['i'], $sess)) == FALSE) {
break;
ignore_user_abort(FALSE);
if ($user == FALSE) {
- return (unrecerror());
+ return (blocking_error(TRUE));
}
}
/*
* if $cur_step == -1 load the current state from the main struct
*/
+
+ /* unset the $user var to reload it from main structure */
+ unset($user);
+
ignore_user_abort(TRUE);
- $sem = Room::lock_data();
- $room = Room::load_data();
+ $sem = Room::lock_data(TRUE);
+ if (($room = Room::load_data()) == FALSE) {
+ Room::unlock_data($sem);
+ ignore_user_abort(FALSE);
+ return (blocking_error(TRUE));
+ }
$S_load_stat['R_minusone']++;
- /* unset the $user var to reload it from main structure */
- unset($user);
if (($user = $room->get_user($sess, $idx)) == FALSE) {
Room::unlock_data($sem);
ignore_user_abort(FALSE);
- return (unrecerror());
+ return (blocking_error(TRUE));
}
if ($user->the_end) {
log_rd2("NEWSTAT: ".$user->stat);
}
else {
- // TODO: verify if we can use only $user struct
ignore_user_abort(TRUE);
- $sem = Room::lock_data();
+ $sem = Room::lock_data(FALSE);
$S_load_stat['U_heavy']++;
if (($user = User::load_data($proxy_step['i'], $sess)) == FALSE) {
- Room::unlock_data();
+ Room::unlock_data($sem);
ignore_user_abort(FALSE);
- return (unrecerror());
+ return (blocking_error(TRUE));
}
if ($cur_step < $user->step) {
log_mop($user->step, 'index_rd.php: after ret set');
if ($user->the_end == TRUE) {
- log_rd2("LOGOUT BYE BYE!!");
- log_auth($user->sess, "Explicit logout.");
+ Room::unlock_data($sem);
- $S_load_stat['R_the_end']++;
- $room = Room::load_data();
+ /* Switch to exclusive locking */
+ $sem = Room::lock_data(TRUE);
+
unset($user);
+
+ $S_load_stat['R_the_end']++;
+ if (($room = Room::load_data()) == FALSE) {
+ Room::unlock_data($sem);
+ ignore_user_abort(FALSE);
+ return (blocking_error(TRUE));
+ }
+
if (($user = $room->get_user($sess, $idx)) == FALSE) {
Room::unlock_data($sem);
ignore_user_abort(FALSE);
- return (unrecerror());
+ return (blocking_error(TRUE));
}
- $user->reset();
+
+ log_rd2("LOGOUT BYE BYE!!");
+ log_auth($user->sess, "Explicit logout.");
- if ($user->subst == 'sitdown') {
- log_load("ROOM WAKEUP");
- $room->room_wakeup($user);
+ if ($user->the_end == TRUE) {
+ $user->reset();
+
+ if ($user->subst == 'sitdown') {
+ log_load("ROOM WAKEUP");
+ $room->room_wakeup($user);
+ }
+ else if ($user->subst == 'standup')
+ $room->room_outstandup($user);
+ else
+ log_rd2("LOGOUT FROM WHAT ???");
+
+ Room::save_data($room);
}
- else if ($user->subst == 'standup')
- $room->room_outstandup($user);
- else
- log_rd2("LOGOUT FROM WHAT ???");
-
- Room::save_data($room);
}
}
step
*/
-$is_page_streaming = (stristr($HTTP_USER_AGENT, "MSIE") || stristr($HTTP_USER_AGENT, "CHROME") ? TRUE : FALSE);
+$is_page_streaming = (webservers_exceeded() || stristr($HTTP_USER_AGENT, "MSIE") || stristr($HTTP_USER_AGENT, "CHROME") ? TRUE : FALSE);
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past