renamed check_webservers() to webservers_check()

[brisk.git] / web / Obj / brisk.phh

diff --git a/web/Obj/brisk.phh b/web/Obj/brisk.phh
index 8b12641..0dbb358 100644 (file)
--- a/web/Obj/brisk.phh
+++ b/web/Obj/brisk.phh
@@ -57,6 +57,7 @@ define(BAN_TIME, 3600);
 define(GARBAGE_TIMEOUT, 10);
 define(NICKSERV, "<i>BriskServ</i>");
 
+define(LOCK_SHARE_MAX, 10000);
 
 define(DBG_ONL2, 0x0001);
 define(DBG_ONLY, 0x0002);
@@ -283,6 +284,61 @@ 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 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(   "&quot;" );
 
@@ -1083,6 +1139,7 @@ class Room {
         return ($ismod);
     }
       
+    webservers_check();
       // FIXME BRISK4: include for each kind of table
       require_once("${G_base}briskin5/Obj/briskin5.phh");
 
@@ -1094,7 +1151,7 @@ class Room {
        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");
            
            $no_recovery = FALSE;
@@ -1933,7 +1990,7 @@ class Room {
         if ($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");
             
             $no_recovery = FALSE;
@@ -2112,7 +2169,7 @@ class Room {
       if ($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();
@@ -2403,7 +2460,7 @@ class Room {
       return ($ret);
   }
 
-  static function lock_data()
+  static function lock_data($is_exclusive)
   {
       GLOBAL $sess; 
       
@@ -2413,7 +2470,7 @@ class Room {
           return (FALSE);
       }
       // echo "FTOK ".$tok."<br>";
-      if (($res = sem_get($tok)) == FALSE) {
+      if (($res = sem_get($tok, ($is_exclusive ? 1 : LOCK_SHARE_MAX) )) == FALSE) {
           return (FALSE);
       }
       if (sem_acquire($res)) {
@@ -3047,7 +3104,7 @@ function sharedmem_sz($tok)
 class Warrant {
     static $delta_t;
 
-  static function lock_data()
+  static function lock_data($is_exclusive)
   {
     GLOBAL $sess; 
     
@@ -3055,7 +3112,7 @@ class Warrant {
       return (FALSE);
     }
     // echo "FTOK ".$tok."<br>";
-    if (($res = sem_get($tok)) == FALSE) {
+    if (($res = sem_get($tok, ($is_exclusive ? 1 : LOCK_SHARE_MAX) )) == FALSE) {
       return (FALSE);
     }
     if (sem_acquire($res)) {   
@@ -3080,7 +3137,7 @@ class Warrant {
 class Poll {
     static $delta_t;
 
-    static function lock_data()
+  static function lock_data($is_exclusive)
   {
     GLOBAL $sess; 
     
@@ -3088,7 +3145,7 @@ class Poll {
       return (FALSE);
     }
     // echo "FTOK ".$tok."<br>";
-    if (($res = sem_get($tok)) == FALSE) {
+    if (($res = sem_get($tok, ($is_exclusive ? 1 : LOCK_SHARE_MAX) )) == FALSE) {
       return (FALSE);
     }
     if (sem_acquire($res)) {