define(GARBAGE_TIMEOUT, 10);
define(NICKSERV, "<i>BriskServ</i>");
+define(LOCK_SHARE_MAX, 10000);
define(DBG_ONL2, 0x0001);
define(DBG_ONLY, 0x0002);
$G_lng = langtolng($G_lang);
$G_all_points = array( 11,10,4,3,2, 0,0,0,0,0 );
-$G_brisk_version = "3.5.3";
+$G_brisk_version = "3.5.6";
/* MLANG: ALL THE INFO STRINGS IN brisk.phh */
-$root_wellarr = array( 'it' => array ( 'Brisk (Ver. '.$G_brisk_version.'), <b>NOVITA\'</b>: terza versione di test per la nuova gestione dei dati volatili, rivista gestione del ticker.',
+$root_wellarr = array( 'it' => array ( 'Brisk (Ver. '.$G_brisk_version.'), <b>NOVITA\'</b>: (tecnica) utilizzo di locking tipo lettori/scrittori al posto del locking esclusivo generico.',
'Se vuoi iscriverti alla <a target="_blank" href="mailto:ml-briscola+subscribe@milug.org">Mailing List</a>, cliccala!' ),
- 'en' => array ( 'Brisk (Ver. '.$G_brisk_version.'), <b>NEWS</b>: third test version for the new volatile data management, ticker management refactored.',
+ 'en' => array ( 'Brisk (Ver. '.$G_brisk_version.'), <b>NEWS</b>: usage of reader/writer locking instead of generic exclusive locking.',
'If you want to subscribe our <a target="_blank" href="ml-briscola+subscribe@milug.org">Mailing List</a>, click it!' ) );
$G_room_help = array( 'it' => '
<br><b>version '.$G_brisk_version.'</b><br><br>
Copyright 2006-2009 <a href=\\"mailto:brisk@alternativeoutput.it\\">Matteo Nastasi</a> (aka mop)<br><br>');
+function file_lock($fname, $is_exclusive)
+{
+ if (($res = fopen($fname, "r+")) == FALSE) {
+ return (FALSE);
+ }
+
+ if (flock($res, ($is_exclusive ? LOCK_EX : LOCK_SH)) == FALSE) {
+ fclose($res);
+ return (FALSE);
+ }
+
+ return ($res);
+}
+
+function file_unlock($res)
+{
+ if ($res != FALSE) {
+ flock($res, LOCK_UN);
+ fclose($res);
+ }
+}
+
+function webservers_exceeded()
+{
+ return(file_exists(PROXY_PATH."/webservers_exceded.flag"));
+}
+
+function webservers_check()
+{
+ GLOBAL $G_webserver_max;
+
+ $ct = 0;
+
+ $dh = opendir('/proc');
+ while (($file = readdir($dh)) !== false) {
+ if (preg_match('/[0-9]+/', $file)) {
+ $cmdline = explode("\0", file_get_contents('/proc/'.$file.'/cmdline'));
+ // echo "xxx".$cmdline[0].$n;
+ if (strstr('/usr/sbin/apache2', $cmdline[0]) != FALSE) {
+ // echo "yyy".$cmdline[0].$n;
+ $ct++;
+ }
+ }
+ }
+ closedir($dh);
+
+ if ($ct >= $G_webserver_max) {
+ touch(PROXY_PATH."/webservers_exceded.flag");
+ }
+ else {
+ unlink(PROXY_PATH."/webservers_exceded.flag");
+ }
+ return ($ct);
+}
+
$escinp_from = array( "\"" );
$escinp_to = array( """ );
$curtime = time();
// externalized if ($force || $this->garbage_timeout < $curtime) {
- if ($force || Room::garbage_time_is_expired($curtime)) {
+ if (!$force && !Room::garbage_time_is_expired($curtime)) {
+ return ($ismod);
+ }
+ webservers_check();
// FIXME BRISK4: include for each kind of table
require_once("${G_base}briskin5/Obj/briskin5.phh");
if ($table_cur->player_n == PLAYERS_N) {
log_main("PLAYERS == N TABLE ".$table_idx);
- if (($sem = Bin5::lock_data($table_idx)) != FALSE) {
+ if (($sem = Bin5::lock_data(TRUE, $table_idx)) != FALSE) {
log_main("bin5 lock data success");
$no_recovery = FALSE;
$this->room_join_wakeup($user_cur, FALSE, 0);
$table_cur->table_token = "";
$table_cur->wakeup_time = $curtime + WAKEUP_TIME;
- Bin5::destroy_data($table_idx);
+
+ $bri->destroy_data($table_idx);
}
else {
log_main("gm:: save_data");
// externalized $this->garbage_timeout = time() + GARBAGE_TIMEOUT;
Room::garbage_time_expire_set($curtime + GARBAGE_TIMEOUT);
$ismod = TRUE;
- }
return ($ismod);
}
if ($table_cur->player_n == PLAYERS_N) {
log_main("PLAYERS == N TABLE ".$table_idx);
- if (($sem = Bin5::lock_data($table_idx)) != FALSE) {
+ if (($sem = Bin5::lock_data(TRUE, $table_idx)) != FALSE) {
log_main("bin5 lock data success");
$no_recovery = FALSE;
if ($ghost_user->stat == "table" && $this->table[$table_idx]->player_n == PLAYERS_N) {
// FIXME BRISK4: include for each kind of table
require_once("${G_base}briskin5/Obj/briskin5.phh");
- if (($brisem = Bin5::lock_data($table_idx)) != FALSE) {
+ if (($brisem = Bin5::lock_data(TRUE, $table_idx)) != FALSE) {
if (($bri = Bin5::load_data($table_idx)) != FALSE) {
if ($bri->the_end != TRUE) {
$bri->user[$ghost_user->table_pos]->step_inc();
return ($ret);
}
- static function lock_data()
+ static function lock_data($is_exclusive)
{
- GLOBAL $sess;
-
- // echo "LOCK: ".FTOK_PATH."/main";
- // exit;
- if (($tok = @ftok(FTOK_PATH."/main", "B")) == -1) {
- return (FALSE);
- }
- // echo "FTOK ".$tok."<br>";
- if (($res = sem_get($tok)) == FALSE) {
- return (FALSE);
- }
- if (sem_acquire($res)) {
+ if (($res = file_lock(FTOK_PATH."/main", $is_exclusive)) != FALSE) {
self::$delta_t = microtime(TRUE);
log_lock("LOCK room [".self::$delta_t."]");
-
+
return ($res);
}
- else
- return (FALSE);
+
+ return (FALSE);
}
static function unlock_data($res)
log_lock("UNLOCK room [".(microtime(TRUE) - (self::$delta_t))."]");
- return (sem_release($res));
+ file_unlock($res);
}
return ($ret);
}
+function trace_ftok($id, $add)
+{
+ // NOTE: without space to use sed to substitute "= @ftok(" with "= @ftok("
+ $tok=@ftok($id, $add);
+
+ log_shme($tok.": ".$id." + ".$add);
+
+ return ($tok);
+}
+
function log_mop($step, $log)
{
GLOBAL $sess, $PHP_SELF;
class Warrant {
static $delta_t;
- function lock_data()
+ static function lock_data($is_exclusive)
{
- GLOBAL $sess;
-
- if (($tok = @ftok(FTOK_PATH."/warrant", "B")) == -1) {
- return (FALSE);
- }
- // echo "FTOK ".$tok."<br>";
- if (($res = sem_get($tok)) == FALSE) {
- return (FALSE);
- }
- if (sem_acquire($res)) {
- self::$delta_t = microtime(TRUE);
- log_lock("LOCK warrant [".self::$delta_t."]");
- return ($res);
- }
- else
+ if (($res = file_lock(FTOK_PATH."/warrant", $is_exclusive)) != FALSE) {
+ self::$delta_t = microtime(TRUE);
+ log_lock("LOCK warrant [".self::$delta_t."]");
+
+ return ($res);
+ }
+
return (FALSE);
}
- function unlock_data($res)
+ static function unlock_data($res)
{
GLOBAL $sess;
log_lock("UNLOCK warrant [".(microtime(TRUE) - (self::$delta_t))."]");
- return (sem_release($res));
+ file_unlock($res);
}
}
class Poll {
static $delta_t;
- function lock_data()
+ static function lock_data($is_exclusive)
{
- GLOBAL $sess;
-
- if (($tok = @ftok(FTOK_PATH."/poll", "B")) == -1) {
- return (FALSE);
- }
- // echo "FTOK ".$tok."<br>";
- if (($res = sem_get($tok)) == FALSE) {
- return (FALSE);
- }
- if (sem_acquire($res)) {
- self::$delta_t = microtime(TRUE);
- log_lock("LOCK poll [".self::$delta_t."]");
-
- return ($res);
- }
- else
+ if (($res = file_lock(FTOK_PATH."/poll", $is_exclusive)) != FALSE) {
+ self::$delta_t = microtime(TRUE);
+ log_lock("LOCK poll [".self::$delta_t."]");
+
+ return ($res);
+ }
+
return (FALSE);
}
- function unlock_data($res)
+ static function unlock_data($res)
{
GLOBAL $sess;
log_lock("UNLOCK poll [".(microtime(TRUE) - (self::$delta_t))."]");
- return (sem_release($res));
+ file_unlock($res);
}
}
projects / brisk.git / blobdiff