X-Git-Url: https://mop.ddnsfree.com/gitweb/?a=blobdiff_plain;f=web%2FObj%2Fbrisk.phh;h=135d2999b7b8ceaa50786bed2337db31ff04a744;hb=f6a4ad0c8fed8ed0d3bab5fba9842cf00576c028;hp=67854cfbe18aa2b98e9388e28869a4808e9c1e0f;hpb=04de0e58bd8e0d0de4e317d79611dfdb71180d22;p=brisk.git

diff --git a/web/Obj/brisk.phh b/web/Obj/brisk.phh
index 67854cf..135d299 100644
--- a/web/Obj/brisk.phh
+++ b/web/Obj/brisk.phh
@@ -136,12 +136,12 @@ $mlang_brisk = array( 'btn_backstand'=> array( 'it' => 'torna in piedi',
 $G_lng = langtolng($G_lang);
 
 $G_all_points = array( 11,10,4,3,2, 0,0,0,0,0 );
-$G_brisk_version = "3.5.5";
+$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>: quinta 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!' ) );
 
 $G_room_help = array( 'it' => '
@@ -284,12 +284,40 @@ Copyright 2006-2009 <a href=\\"mailto:brisk@alternativeoutput.it\\">Matteo Nasta
 <br><b>version '.$G_brisk_version.'</b><br><br>
 Copyright 2006-2009 <a href=\\"mailto:brisk@alternativeoutput.it\\">Matteo Nastasi</a> (aka mop)<br><br>');
 
+function mop_flush()
+{
+    flush();
+    ob_flush();
+}
+
+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 check_webservers()
+function webservers_check()
 {
     GLOBAL $G_webserver_max;
 
@@ -1117,7 +1145,7 @@ class Room {
         return ($ismod);
     }
       
-        check_webservers();
+    webservers_check();
       // FIXME BRISK4: include for each kind of table
       require_once("${G_base}briskin5/Obj/briskin5.phh");
 
@@ -2126,7 +2154,7 @@ class Room {
 
     log_auth("XXX", sprintf("TROVATO A QUESTO PUNTO [%d] sess [%s] name [%s]", $idx, $sess, $name_new));
 
-    /* there is another user logged with your account and you and him have authenticated => che new user
+    /* there is another user logged with your account and you and him have authenticated => new user
        get the session of the old user */
     if ($ghost > -1 && $ghost_auth && ($authenticate != FALSE)) {
       /* swap session */
@@ -2440,25 +2468,14 @@ class Room {
 
   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($tok, ($is_exclusive ? 1 : LOCK_SHARE_MAX) )) == 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)
@@ -2467,7 +2484,7 @@ class Room {
     
     log_lock("UNLOCK room         [".(microtime(TRUE) - (self::$delta_t))."]");
 
-    return (sem_release($res));
+    file_unlock($res);
   }
 
 
@@ -3084,21 +3101,13 @@ class Warrant {
 
   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($tok, ($is_exclusive ? 1 : LOCK_SHARE_MAX) )) == 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);
   }
   
@@ -3108,7 +3117,7 @@ class Warrant {
     
     log_lock("UNLOCK warrant      [".(microtime(TRUE) - (self::$delta_t))."]");
 
-    return (sem_release($res));
+    file_unlock($res);
   }
 }
 
@@ -3117,22 +3126,13 @@ class Poll {
 
   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($tok, ($is_exclusive ? 1 : LOCK_SHARE_MAX) )) == 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);
   }
   
@@ -3142,7 +3142,7 @@ class Poll {
     
     log_lock("UNLOCK poll         [".(microtime(TRUE) - (self::$delta_t))."]");
     
-    return (sem_release($res));
+    file_unlock($res);
   }
 }