<?php
/*
- * brisk - index_rd.php
+ * brisk - briskin5/index_rd.php
*
* Copyright (C) 2006-2011 Matteo Nastasi
* mailto: nastasi@alternativeoutput.it
*
*/
+$G_base = "../";
+
require_once("../Obj/brisk.phh");
// require_once("../Obj/proxyscan.phh");
require_once("Obj/briskin5.phh");
+$S_load_stat = array( 'rU_heavy' => 0,
+ 'lL_laccgarb' => 0,
+ 'wU_lacc_upd' => 0,
+ 'wR_garbage' => 0,
+ 'wR_minusone' => 0,
+ 'wR_the_end' => 0 );
+
// Use of proxies isn't allowed.
// if (is_proxy()) {
// sleep(5);
log_load("LOAD: bin5/index_rd.php ".$QUERY_STRING);
-$first_loop = TRUE;
+// $first_loop = TRUE;
$the_end = FALSE;
if (DEBUGGING == "local" && $_SERVER['REMOTE_ADDR'] != '127.0.0.1') {
function shutta()
{
- log_rd2("bin5 SHUTTA!".connection_status());
+ log_rd2("bin5 SHUTTA [".connection_status()."] !");
}
-
register_shutdown_function(shutta);
-function unrecerror()
+function blocking_error($is_unrecoverable)
{
GLOBAL $is_page_streaming;
$is_page_streaming = TRUE;
- log_rd2("UNREC_ERROR");
- return (sprintf('the_end=true; window.onbeforeunload = null; window.onunload = null; document.location.assign("../index.php");'));
+ log_rd2("BLOCKING_ERROR UNREC: ".($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)
return (sprintf('the_end=true; window.onbeforeunload = null; window.onunload = null; document.location.assign("%s");', $page));
}
-
-
-
function maincheck($sess, $cur_stat, $cur_subst, $cur_step, &$new_stat, &$new_subst, &$new_step, $table_idx, $table_token)
{
- GLOBAL $is_page_streaming, $first_loop;
-
- $ret = FALSE;
- $bri = FALSE;
+ GLOBAL $is_page_streaming, $S_load_stat;
+ // GLOBAL $first_loop;
- // log_rd2("M");
- /* Sync check (read only without modifications */
- ignore_user_abort(TRUE);
- if (($sem = Briskin5::lock_data($table_idx)) != FALSE) {
- // Aggiorna l'expire time lato server
- if ($first_loop == TRUE) {
- log_only("F");
+ $ret = FALSE;
+ $bri = FALSE;
+ $user = FALSE;
+ $curtime = time();
- // VERIFICARE TUTTE LE LOAD_DATA E PRENDERE CONTROMISURE NEL CASO FALLISCANO //
-
- if (($bri = &Briskin5::load_data($table_idx, $table_token)) == FALSE) {
- Briskin5::unlock_data($sem);
- ignore_user_abort(FALSE);
- return (unrecerror());
- }
- if (($user = &$bri->get_user($sess, $idx)) == FALSE) {
- Briskin5::unlock_data($sem);
+ if (($proxy_step = Bin5_user::load_step($table_idx, $sess)) == FALSE) {
+ log_only2("R");
ignore_user_abort(FALSE);
- return (unrecerror());
- }
- log_auth($sess, "bin5::update lacc");
- $user->lacc = time();
-
- $bri->garbage_manager(FALSE);
-
- Briskin5::save_data($bri);
- $first_loop = FALSE;
+ return (blocking_error(TRUE));
}
-
- log_lock("U");
- Briskin5::unlock_data($sem);
- ignore_user_abort(FALSE);
- }
- else {
- return (FALSE);
- }
-
- if (($proxy_step = step_get($sess)) != FALSE) {
- // log_rd2("Postget".$proxy_step."zizi");
- if ($cur_step == $proxy_step) {
- log_lock("P");
- return (FALSE);
- }
- else {
- log_only2("R");
- }
- }
- else {
- log_only2("R");
- }
-
- if ($bri == FALSE) {
- do {
- ignore_user_abort(TRUE);
- if (($sem = Briskin5::lock_data($table_idx)) == FALSE)
- break;
-
- log_lock("P");
- if (($bri = &Briskin5::load_data($table_idx, $table_token)) == FALSE)
- break;
- } while (0);
-
- if ($sem != FALSE)
- Briskin5::unlock_data($sem);
-
- ignore_user_abort(FALSE);
- if ($bri == FALSE)
- return (unrecerror());
- }
-
- if (($user = &$bri->get_user($sess, $idx)) == FALSE) {
- return (unrecerror());
- }
-
- /* Nothing changed, return. */
- if ($cur_step == $user->step)
- return;
-
- log_rd2("do other ++".$cur_stat."++".$user->stat."++".$cur_step."++".$user->step);
-
- if ($cur_step == -1) {
- // FUNZIONE from_scratch DA QUI
+ // log_rd2("M");
+ /* Sync check (read only without modifications */
ignore_user_abort(TRUE);
- $sem = Briskin5::lock_data($table_idx);
- $bri = &Briskin5::load_data($table_idx, $table_token);
- if (($user = &$bri->get_user($sess, $idx)) == FALSE) {
- Briskin5::unlock_data($sem);
- ignore_user_abort(FALSE);
- return (unrecerror());
- }
- if ($user->the_end)
- $is_page_streaming = TRUE;
-
- if ($user->trans_step != -1) {
- log_rd2("TRANS USATO ".$user->trans_step);
- $cur_step = $user->trans_step;
- $user->trans_step = -1;
+ // shared locking to load info
+ if (($sem = Bin5::lock_data(FALSE, $table_idx)) == FALSE) {
+ // wait 20 secs, then restart the xhr
+ ignore_user_abort(FALSE);
+ return ("sleep(gst,20000);|xhr_rd_abort(xhr_rd);");
+ }
+ if (($user = Bin5_user::load_data($table_idx, $proxy_step['i'], $sess)) == FALSE) {
+ Bin5::unlock_data($sem);
+ ignore_user_abort(FALSE);
+ return (blocking_error(TRUE));
+ }
- Briskin5::save_data($bri);
- Briskin5::unlock_data($sem);
- ignore_user_abort(FALSE);
+ /* if lacc time great than STREAM_TIMEOUT or the room garbage_time is expired
+ switch to exclusive locking and verify again the conditions */
+
+ if ((($curtime - $user->lacc) > STREAM_TIMEOUT) || Bin5::garbage_time_is_expired($table_idx, $curtime)) {
+ Bin5::unlock_data($sem);
+
+ // exclusive locking to modify info
+ if (($sem = Bin5::lock_data(TRUE, $table_idx)) == FALSE) {
+ // wait 20 secs, then restart the xhr
+ ignore_user_abort(FALSE);
+ return ("sleep(gst,20000);|xhr_rd_abort(xhr_rd);");
+ }
+ $S_load_stat['lL_laccgarb']++;
+
+ unset($user);
+ // load again the user data after new lock
+ if (($user = Bin5_user::load_data($table_idx, $proxy_step['i'], $sess)) == FALSE) {
+ Bin5::unlock_data($sem);
+ ignore_user_abort(FALSE);
+ return (blocking_error(TRUE));
+ }
+
+ if (($curtime - $user->lacc) > STREAM_TIMEOUT) {
+ $S_load_stat['wU_lacc_upd']++;
+ $user->lacc = $curtime;
+ // lacc field updated
+ Bin5_user::save_data($user, $table_idx, $user->idx);
+ }
+
+ if (Bin5::garbage_time_is_expired($table_idx, $curtime)) {
+ log_only("F");
+
+ $S_load_stat['wR_garbage']++;
+ if (($bri = Bin5::load_data($table_idx, $table_token)) == FALSE) {
+ Bin5::unlock_data($sem);
+ ignore_user_abort(FALSE);
+ return (blocking_error(TRUE));
+ }
+
+ $bri->garbage_manager(FALSE);
+
+ Bin5::save_data($bri);
+ unset($bri);
+ }
}
- else {
- log_rd2("TRANS NON ATTIVATO");
+ log_main("infolock: U");
+ Bin5::unlock_data($sem);
+ ignore_user_abort(FALSE);
-// ARRAY_POP DISABLED
-// while (array_pop($user->comm) != NULL);
-// // $user->step_inc(COMM_N + 1);
-// Briskin5::save_data($bri);
- Briskin5::unlock_data($sem);
- ignore_user_abort(FALSE);
+// if ($first_loop == TRUE) {
+
+// if (($sem = Bin5::lock_data(TRUE, $table_idx)) != FALSE) {
+// // Aggiorna l'expire time lato server
+// $S_load_stat['rU_first_loop']++;
+
+// if (($user = Bin5_user::load_data($table_idx, $proxy_step['i'], $sess)) == FALSE) {
+// Bin5::unlock_data($sem);
+// ignore_user_abort(FALSE);
+// return (blocking_error(TRUE));
+// }
+// $user->lacc = $curtime;
+
+// Bin5_user::save_data($user, $table_idx, $user->idx);
+
+// if (Bin5::garbage_time_is_expired($table_idx, $curtime)) {
+// log_only("F");
+
+// $S_load_stat['wR_garbage']++;
+// if (($bri = Bin5::load_data($table_idx, $table_token)) == FALSE) {
+// Bin5::unlock_data($sem);
+// ignore_user_abort(FALSE);
+// return (blocking_error(TRUE));
+// }
+
+// $bri->garbage_manager(FALSE);
+
+// Bin5::save_data($bri);
+// unset($bri);
+// }
+// log_main("infolock: U");
+// Bin5::unlock_data($sem);
+// ignore_user_abort(FALSE);
+// } // if (($sem = Bin5::lock_data(TRUE, $table ...
+// else {
+// ignore_user_abort(FALSE);
+
+// return ("sleep(gst,20000);|xhr_rd_abort(xhr_rd);");
+// }
+
+// $first_loop = FALSE;
+// } // if ($first_loop == TRUE) {
+
+ if ($cur_step == $proxy_step['s']) {
+ log_main("infolock: P");
+ return (FALSE);
}
- }
-
- if ($cur_step == -1) {
- log_rd2("PRE-NEWSTAT.");
-
- /***************
- * *
- * TABLE *
- * *
- ***************/
- if ($user->stat == "table") {
- $ret = show_table(&$bri,&$user,$user->step,FALSE,FALSE);
-
- log_rd2("SENDED TO THE STREAM: ".$ret);
+ else {
+ log_only2("R");
}
- log_rd2("NEWSTAT: ".$user->stat);
-
- $new_stat = $user->stat;
- $new_subst = $user->subst;
- $new_step = $user->step;
- }
- else {
- ignore_user_abort(TRUE);
- $sem = Briskin5::lock_data($table_idx);
- if (($bri = &Briskin5::load_data($table_idx, $table_token)) == FALSE) {
- Briskin5::unlock_data($sem);
- ignore_user_abort(FALSE);
- return (unrecerror());
+
+ $S_load_stat['rU_heavy']++;
+ if ($user == FALSE) {
+ do {
+ ignore_user_abort(TRUE);
+ if (($sem = Bin5::lock_data(TRUE, $table_idx)) == FALSE)
+ break;
+
+ log_main("infolock: P");
+ if (($user = Bin5_user::load_data($table_idx, $proxy_step['i'], $sess)) == FALSE) {
+ break;
+ }
+ } while (0);
+
+ if ($sem != FALSE)
+ Bin5::unlock_data($sem);
+
+ ignore_user_abort(FALSE);
+ if ($user == FALSE)
+ return (blocking_error(TRUE));
}
- if (($user = &$bri->get_user($sess, $idx)) == FALSE) {
- Briskin5::unlock_data($sem);
- ignore_user_abort(FALSE);
- return (unrecerror());
+
+ /* Nothing changed, return. */
+ if ($cur_step == $user->step)
+ return (FALSE);
+
+ log_rd2("do other cur_stat[".$cur_stat."] user->stat[".$user->stat."] cur_step[".$cur_step."] user_step[".$user->step."]");
+
+ if ($cur_step == -1) {
+ /*
+ * 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 = Bin5::lock_data(TRUE, $table_idx);
+ if (($bri = Bin5::load_data($table_idx, $table_token)) == FALSE) {
+ Bin5::unlock_data($sem);
+ ignore_user_abort(FALSE);
+ return (blocking_error(TRUE));
+ }
+ $S_load_stat['wR_minusone']++;
+
+ if (($user = $bri->get_user($sess, $idx)) == FALSE) {
+ Bin5::unlock_data($sem);
+ ignore_user_abort(FALSE);
+ return (blocking_error(TRUE));
+ }
+ if ($user->the_end == TRUE) {
+ log_rd2("main_check: the end".var_export(debug_backtrace()));
+ $is_page_streaming = TRUE;
+ }
+
+ if ($user->trans_step != -1) {
+ log_rd2("TRANS USATO ".$user->trans_step);
+ $cur_step = $user->trans_step;
+ $user->trans_step = -1;
+
+ Bin5::save_data($bri);
+ Bin5::unlock_data($sem);
+ ignore_user_abort(FALSE);
+ }
+ else {
+ log_rd2("TRANS NON ATTIVATO");
+
+ // ARRAY_POP DISABLED
+ // while (array_pop($user->comm) != NULL);
+ // // $user->step_inc(COMM_N + 1);
+ // Bin5::save_data($bri);
+
+ Bin5::unlock_data($sem);
+ ignore_user_abort(FALSE);
+ }
}
- if ($cur_step < $user->step) {
- do {
- if ($cur_step + COMM_N < $user->step) {
- if (($cur_stat != $user->stat)) {
- $to_stat = $user->stat;
- Briskin5::unlock_data($sem);
- ignore_user_abort(FALSE);
- return (page_sync($user->sess, $to_stat == "table" ? "index.php" : "../index.php"));
- }
- log_rd2("lost history, refresh from scratch");
- $new_step = -1;
- break;
- }
- for ($i = $cur_step ; $i < $user->step ; $i++) {
- $ii = $i % COMM_N;
- log_wr("TRY RET ".$i." COMM_N ".COMM_N." II ".$ii);
- $ret .= $user->comm[$ii];
- }
- $new_stat = $user->stat;
- $new_subst = $user->subst;
- $new_step = $user->step;
- } while (0);
-
- log_mop($user->step, 'bin::index_rd.php: after ret set');
-
- if ($user->the_end == TRUE) {
- log_rd2("LOGOUT BYE BYE!!");
- log_auth($user->sess, "Explicit logout.");
- $tmp_sess = $user->sess;
- $user->sess = "";
- step_unproxy($tmp_sess);
-
- $user->name = "";
- $user->the_end = FALSE;
-
- if ($user->subst == 'sitdown')
- $bri->room_wakeup(&$user);
- else if ($user->subst == 'standup')
- $bri->room_outstandup(&$user);
- else
- log_rd2("LOGOUT FROM WHAT ???");
-
- Briskin5::save_data($bri);
- }
+
+ if ($cur_step == -1) {
+ log_rd2("PRE-NEWSTAT.");
+
+ /***************
+ * *
+ * TABLE *
+ * *
+ ***************/
+ if ($user->stat == "table") {
+ $ret = show_table(&$bri,&$user,$user->step,FALSE,FALSE);
+
+ log_rd2("SENDED TO THE STREAM: ".$ret);
+ }
+ log_rd2("NEWSTAT: ".$user->stat);
+
+ $new_stat = $user->stat;
+ $new_subst = $user->subst;
+ $new_step = $user->step;
}
-
- Briskin5::unlock_data($sem);
- ignore_user_abort(FALSE);
+ else {
+ ignore_user_abort(TRUE);
+ $sem = Bin5::lock_data(TRUE, $table_idx);
+ // if (($user = &$bri->get_user($sess, $idx)) == FALSE) {
+ if (($user = Bin5_user::load_data($table_idx, $proxy_step['i'], $sess)) == FALSE) {
+ Bin5::unlock_data($sem);
+ ignore_user_abort(FALSE);
+ return (blocking_error(TRUE));
+ }
+ if ($cur_step < $user->step) {
+ do {
+ if ($cur_step + COMM_N < $user->step) {
+ if (($cur_stat != $user->stat)) {
+ $to_stat = $user->stat;
+ Bin5::unlock_data($sem);
+ ignore_user_abort(FALSE);
+ return (page_sync($user->sess, $to_stat == "table" ? "index.php" : "../index.php"));
+ }
+ log_rd2("lost history, refresh from scratch");
+ $new_step = -1;
+ break;
+ }
+ for ($i = $cur_step ; $i < $user->step ; $i++) {
+ $ii = $i % COMM_N;
+ log_wr("TRY RET ".$i." COMM_N ".COMM_N." II ".$ii);
+ $ret .= $user->comm[$ii];
+ }
+ $new_stat = $user->stat;
+ $new_subst = $user->subst;
+ $new_step = $user->step;
+ } while (0);
+
+ log_mop($user->step, 'bin::index_rd.php: after ret set');
+
+ if ($user->the_end == TRUE) {
+ log_rd2("LOGOUT BYE BYE!!");
+ log_auth($user->sess, "Explicit logout.");
+
+ unset($user);
+
+ $S_load_stat['wR_the_end']++;
+ if (($bri = Bin5::load_data($table_idx, $table_token)) == FALSE) {
+ Bin5::unlock_data($sem);
+ ignore_user_abort(FALSE);
+ return (blocking_error(TRUE));
+ }
+ if (($user = $bri->get_user($sess, $idx)) == FALSE) {
+ Bin5::unlock_data($sem);
+ ignore_user_abort(FALSE);
+ return (blocking_error(TRUE));
+ }
+
+ $tmp_sess = $user->sess;
+ $user->sess = "";
+ Bin5_user::unproxy_step($tmp_sess);
+ $user->name = "";
+ $user->the_end = FALSE;
+
+ /* FIXME - and now ??
+ if ($user->subst == 'sitdown')
+ $bri->room_wakeup($user);
+ else if ($user->subst == 'standup')
+ $bri->room_outstandup($user);
+ else
+ log_rd2("LOGOUT FROM WHAT ???");
+ */
+ Bin5::save_data($bri);
+ }
+ }
+
+ Bin5::unlock_data($sem);
+ ignore_user_abort(FALSE);
}
-
+
return ($ret);
}
step
*/
-$is_page_streaming = (stristr($HTTP_USER_AGENT, "MSIE") || stristr($HTTP_USER_AGENT, "CHROME") ? TRUE : FALSE);
+$is_page_streaming = (webservers_exceeded() || stristr($HTTP_USER_AGENT, "Mozilla/5.0 (Windows NT 6.1; rv:5.0)") || 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
$myfrom = "";
if (!isset($subst))
$subst = "";
-log_rd2("FROM OUTSIDE - STAT: ".$stat." SUBST: ".$subst." STEP: ".$step." MYFROM: ".$myfrom. "IS_PAGE:" . $is_page_streaming."USER_AGENT:".$HTTP_USER_AGENT);
+log_rd2("FROM OUTSIDE - STAT: ".$stat." SUBST: ".$subst." STEP: ".$step." MYFROM: ".$myfrom. "IS_PAGE:" . $is_page_streaming."USER_AGENT:".$HTTP_USER_AGENT." TABLE:".$table_idx);
$endtime = time() + STREAM_TIMEOUT;
$pre_main = gettimeofday(TRUE);
if (($ret = maincheck($sess, $old_stat, $old_subst, $old_step, &$stat, &$subst, &$step, $table_idx, $table_token)) != FALSE) {
echo '@BEGIN@';
- // log_rd2(sprintf("\nSESS: [%s]\nOLD_STAT: [%s] OLD_SUBST: [%s] OLD_STEP: [%s] \nSTAT: [%s] SUBST: [%s] STEP: [%s] \nCOMM: [%s]\n", $sess, $old_stat, $old_subst, $old_step, $stat, $subst, $step, $ret));
+ log_rd2(sprintf("\nSESS: [%s]\nOLD_STAT: [%s] OLD_SUBST: [%s] OLD_STEP: [%s] \nSTAT: [%s] SUBST: [%s] STEP: [%s] \nCOMM: [%s]\n", $sess, $old_stat, $old_subst, $old_step, $stat, $subst, $step, $ret));
echo "$ret";
echo ' @END@';
log_send("EXT_STEP: ".$ext_step." ENDTIME: [".$endtime."] ".$ret);
- flush();
- log_mop(0, 'bin::index_rd.php: after flush (begin: '.sprintf("%f", $pre_main).')');
+ mop_flush();
+ log_mop(0, 'bin::index_rd.php: after mop_flush (begin: '.sprintf("%f", $pre_main).')');
if ($is_page_streaming)
break;
}
if (($i % 10) == 0) {
// log_rd2("TIME: ".time());
echo '_';
- flush();
+ mop_flush();
}
+ }
+
+$s = "";
+$tr = 0;
+$tw = 0;
+foreach ($S_load_stat as $key => $value) {
+ $s .= sprintf("%s: %d - ", $key, $value);
+ if (substr($key, 0, 1) == "w")
+ $tw += $value;
+ else if (substr($key, 0, 1) == "r")
+ $tr += $value;
}
+$s = sprintf("briskin5/index_rd.php stats: R: %d W: %d - %s", $tr, $tw, $s);
+log_crit($s);
?>