Initial keep-alive support for the client socket.

[privoxy.git] / loadcfg.c

diff --git a/loadcfg.c b/loadcfg.c
index 4c1eb7a..4942ca4 100644 (file)
--- a/loadcfg.c
+++ b/loadcfg.c
@@ -1,4 +1,4 @@
-const char loadcfg_rcs[] = "$Id: loadcfg.c,v 1.95 2009/04/17 11:34:34 fabiankeil Exp $";
+const char loadcfg_rcs[] = "$Id: loadcfg.c,v 1.98 2009/04/24 15:29:43 fabiankeil Exp $";
 /*********************************************************************
  *
  * File        :  $Source: /cvsroot/ijbswa/current/loadcfg.c,v $
@@ -35,6 +35,16 @@ const char loadcfg_rcs[] = "$Id: loadcfg.c,v 1.95 2009/04/17 11:34:34 fabiankeil
  *
  * Revisions   :
  *    $Log: loadcfg.c,v $
+ *    Revision 1.98  2009/04/24 15:29:43  fabiankeil
+ *    Allow to limit the number of of client connections.
+ *
+ *    Revision 1.97  2009/04/17 11:45:19  fabiankeil
+ *    Replace HAVE_GETADDRINFO and HAVE_GETNAMEINFO macros
+ *    with HAVE_RFC2553 macro. Original patch by Petr Pisar.
+ *
+ *    Revision 1.96  2009/04/17 11:38:28  fabiankeil
+ *    Add and use parse_forwarder_address() to reduce code duplication.
+ *
  *    Revision 1.95  2009/04/17 11:34:34  fabiankeil
  *    Style cosmetics for the IPv6 code.
  *
@@ -640,6 +650,7 @@ static struct file_list *current_configfile = NULL;
 #define hash_listen_address              1255650842ul /* "listen-address" */
 #define hash_logdir                          422889ul /* "logdir" */
 #define hash_logfile                        2114766ul /* "logfile" */
+#define hash_max_client_connections      3595884446ul /* "max-client-connections" */
 #define hash_permit_access               3587953268ul /* "permit-access" */
 #define hash_proxy_info_url              3903079059ul /* "proxy-info-url" */
 #define hash_single_threaded             4250084780ul /* "single-threaded" */
@@ -791,9 +802,6 @@ struct configuration_spec * load_config(void)
    unsigned long linenum = 0;
    int i;
    char *logfile = NULL;
-#ifdef FEATURE_CONNECTION_KEEP_ALIVE
-   int keep_alive_timeout = DEFAULT_KEEP_ALIVE_TIMEOUT;
-#endif
 
    if (!check_file_changed(current_configfile, configfile, &fs))
    {
@@ -845,7 +853,12 @@ struct configuration_spec * load_config(void)
    config->usermanual                = strdup(USER_MANUAL_URL);
    config->proxy_args                = strdup("");
    config->forwarded_connect_retries = 0;
+   config->max_client_connections    = 0;
    config->socket_timeout            = 300; /* XXX: Should be a macro. */
+#ifdef FEATURE_CONNECTION_KEEP_ALIVE
+   config->keep_alive_timeout        = DEFAULT_KEEP_ALIVE_TIMEOUT;
+   config->feature_flags            &= ~RUNTIME_FEATURE_CONNECTION_KEEP_ALIVE;
+#endif
    config->feature_flags            &= ~RUNTIME_FEATURE_CGI_TOGGLE;
    config->feature_flags            &= ~RUNTIME_FEATURE_SPLIT_LARGE_FORMS;
    config->feature_flags            &= ~RUNTIME_FEATURE_ACCEPT_INTERCEPTED_REQUESTS;
@@ -1049,12 +1062,12 @@ struct configuration_spec * load_config(void)
                   break;
                }
             }
-#ifdef HAVE_GETADDRINFO
+#ifdef HAVE_RFC2553
             else
             {
                cur_acl->wildcard_dst = 1;
             }
-#endif /* def HAVE_GETADDRINFO */
+#endif /* def HAVE_RFC2553 */
 
             /*
              * Add it to the list.  Note we reverse the list to get the
@@ -1379,7 +1392,7 @@ struct configuration_spec * load_config(void)
                if (0 <= timeout)
                {
                   config->feature_flags |= RUNTIME_FEATURE_CONNECTION_KEEP_ALIVE;
-                  keep_alive_timeout = timeout;
+                  config->keep_alive_timeout = timeout;
                }
                else
                {
@@ -1420,6 +1433,20 @@ struct configuration_spec * load_config(void)
             }
             break;
 
+/* *************************************************************************
+ * max-client-connections number
+ * *************************************************************************/
+         case hash_max_client_connections :
+            if (*arg != '\0')
+            {
+               int max_client_connections = atoi(arg);
+               if (0 <= max_client_connections)
+               {
+                  config->max_client_connections = max_client_connections;
+               }
+            }
+            break;
+
 /* *************************************************************************
  * permit-access source-ip[/significant-bits] [dest-ip[/significant-bits]]
  * *************************************************************************/
@@ -1481,12 +1508,12 @@ struct configuration_spec * load_config(void)
                   break;
                }
             }
-#ifdef HAVE_GETADDRINFO
+#ifdef HAVE_RFC2553
             else
             {
                cur_acl->wildcard_dst = 1;
             }
-#endif /* def HAVE_GETADDRINFO */
+#endif /* def HAVE_RFC2553 */
 
             /*
              * Add it to the list.  Note we reverse the list to get the
@@ -1780,7 +1807,7 @@ struct configuration_spec * load_config(void)
    {
       if (config->multi_threaded)
       {
-         set_keep_alive_timeout(keep_alive_timeout);
+         set_keep_alive_timeout(config->keep_alive_timeout);
       }
       else
       {
@@ -1789,6 +1816,8 @@ struct configuration_spec * load_config(void)
           * if we didn't bother with enforcing the connection timeout,
           * that might make Tor users sad, even though they shouldn't
           * enable the single-threaded option anyway.
+          *
+          * XXX: We could still use Proxy-Connection: keep-alive.
           */
          config->feature_flags &= ~RUNTIME_FEATURE_CONNECTION_KEEP_ALIVE;
          log_error(LOG_LEVEL_ERROR,