dbus-marshal-validate: Check brackets in signature nest correctly

[platform/upstream/dbus.git] / dbus / dbus-resources.c

diff --git a/dbus/dbus-resources.c b/dbus/dbus-resources.c
index 42aedf5..0617eae 100644 (file)
--- a/dbus/dbus-resources.c
+++ b/dbus/dbus-resources.c
@@ -69,6 +69,7 @@ struct DBusCounter
   DBusCounterNotifyFunction notify_function; /**< notify function */
   void *notify_data; /**< data for notify function */
   dbus_bool_t notify_pending : 1; /**< TRUE if the guard value has been crossed */
+  DBusRMutex *mutex;    /**< Lock on the entire DBusCounter */
 };
 
 /** @} */  /* end of resource limits internals docs */
@@ -89,25 +90,19 @@ _dbus_counter_new (void)
 {
   DBusCounter *counter;
 
-  counter = dbus_new (DBusCounter, 1);
+  counter = dbus_new0 (DBusCounter, 1);
   if (counter == NULL)
     return NULL;
-  
+
   counter->refcount = 1;
-  counter->size_value = 0;
-  counter->unix_fd_value = 0;
 
-#ifdef DBUS_ENABLE_STATS
-  counter->peak_size_value = 0;
-  counter->peak_unix_fd_value = 0;
-#endif
+  _dbus_rmutex_new_at_location (&counter->mutex);
+  if (counter->mutex == NULL)
+  {
+    dbus_free (counter);
+    counter = NULL;
+  }
 
-  counter->notify_size_guard_value = 0;
-  counter->notify_unix_fd_guard_value = 0;
-  counter->notify_function = NULL;
-  counter->notify_data = NULL;
-  counter->notify_pending = FALSE;
-  
   return counter;
 }
 
@@ -120,10 +115,14 @@ _dbus_counter_new (void)
 DBusCounter *
 _dbus_counter_ref (DBusCounter *counter)
 {
+  _dbus_rmutex_lock (counter->mutex);
+
   _dbus_assert (counter->refcount > 0);
   
   counter->refcount += 1;
 
+  _dbus_rmutex_unlock (counter->mutex);
+
   return counter;
 }
 
@@ -136,13 +135,20 @@ _dbus_counter_ref (DBusCounter *counter)
 void
 _dbus_counter_unref (DBusCounter *counter)
 {
+  dbus_bool_t last_ref = FALSE;
+
+  _dbus_rmutex_lock (counter->mutex);
+
   _dbus_assert (counter->refcount > 0);
 
   counter->refcount -= 1;
+  last_ref = (counter->refcount == 0);
 
-  if (counter->refcount == 0)
+  _dbus_rmutex_unlock (counter->mutex);
+
+  if (last_ref)
     {
-      
+      _dbus_rmutex_free_at_location (&counter->mutex);
       dbus_free (counter);
     }
 }
@@ -161,7 +167,11 @@ void
 _dbus_counter_adjust_size (DBusCounter *counter,
                            long         delta)
 {
-  long old = counter->size_value;
+  long old = 0;
+
+  _dbus_rmutex_lock (counter->mutex);
+
+  old = counter->size_value;
 
   counter->size_value += delta;
 
@@ -181,6 +191,8 @@ _dbus_counter_adjust_size (DBusCounter *counter,
        (old >= counter->notify_size_guard_value &&
         counter->size_value < counter->notify_size_guard_value)))
     counter->notify_pending = TRUE;
+
+  _dbus_rmutex_unlock (counter->mutex);
 }
 
 /**
@@ -194,11 +206,20 @@ _dbus_counter_adjust_size (DBusCounter *counter,
 void
 _dbus_counter_notify (DBusCounter *counter)
 {
+  DBusCounterNotifyFunction notify_function = NULL;
+  void *notify_data = NULL;
+
+  _dbus_rmutex_lock (counter->mutex);
   if (counter->notify_pending)
     {
       counter->notify_pending = FALSE;
-      (* counter->notify_function) (counter, counter->notify_data);
+      notify_function = counter->notify_function;
+      notify_data = counter->notify_data;
     }
+  _dbus_rmutex_unlock (counter->mutex);
+
+  if (notify_function != NULL)
+    (* notify_function) (counter, notify_data);
 }
 
 /**
@@ -215,7 +236,11 @@ void
 _dbus_counter_adjust_unix_fd (DBusCounter *counter,
                               long         delta)
 {
-  long old = counter->unix_fd_value;
+  long old = 0;
+
+  _dbus_rmutex_lock (counter->mutex);
+
+  old = counter->unix_fd_value;
   
   counter->unix_fd_value += delta;
 
@@ -235,6 +260,8 @@ _dbus_counter_adjust_unix_fd (DBusCounter *counter,
        (old >= counter->notify_unix_fd_guard_value &&
         counter->unix_fd_value < counter->notify_unix_fd_guard_value)))
     counter->notify_pending = TRUE;
+
+  _dbus_rmutex_unlock (counter->mutex);
 }
 
 /**
@@ -279,11 +306,13 @@ _dbus_counter_set_notify (DBusCounter               *counter,
                           DBusCounterNotifyFunction  function,
                           void                      *user_data)
 {
+  _dbus_rmutex_lock (counter->mutex);
   counter->notify_size_guard_value = size_guard_value;
   counter->notify_unix_fd_guard_value = unix_fd_guard_value;
   counter->notify_function = function;
   counter->notify_data = user_data;
   counter->notify_pending = FALSE;
+  _dbus_rmutex_unlock (counter->mutex);
 }
 
 #ifdef DBUS_ENABLE_STATS