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-rw-r--r--dbus/dbus-resources.c98
1 files changed, 74 insertions, 24 deletions
diff --git a/dbus/dbus-resources.c b/dbus/dbus-resources.c
index bfe8a089..7c7aabd0 100644
--- a/dbus/dbus-resources.c
+++ b/dbus/dbus-resources.c
@@ -29,7 +29,7 @@
* @brief DBusCounter and other stuff related to resource limits
*
* Types and functions related to tracking resource limits,
- * such as the maximum amount of memory a connection can use
+ * such as the maximum amount of memory/unix fds a connection can use
* for messages, etc.
*/
@@ -53,9 +53,12 @@ struct DBusCounter
{
int refcount; /**< reference count */
- long value; /**< current counter value */
+ long size_value; /**< current size counter value */
+ long unix_fd_value; /**< current unix fd counter value */
+
+ long notify_size_guard_value; /**< call notify function when crossing this size value */
+ long notify_unix_fd_guard_value; /**< call notify function when crossing this unix fd value */
- long notify_guard_value; /**< call notify function when crossing this value */
DBusCounterNotifyFunction notify_function; /**< notify function */
void *notify_data; /**< data for notify function */
};
@@ -83,9 +86,11 @@ _dbus_counter_new (void)
return NULL;
counter->refcount = 1;
- counter->value = 0;
+ counter->size_value = 0;
+ counter->unix_fd_value = 0;
- counter->notify_guard_value = 0;
+ counter->notify_size_guard_value = 0;
+ counter->notify_unix_fd_guard_value = 0;
counter->notify_function = NULL;
counter->notify_data = NULL;
@@ -129,64 +134,109 @@ _dbus_counter_unref (DBusCounter *counter)
}
/**
- * Adjusts the value of the counter by the given
+ * Adjusts the value of the size counter by the given
+ * delta which may be positive or negative.
+ * Calls the notify function from _dbus_counter_set_notify()
+ * if that function has been specified.
+ *
+ * @param counter the counter
+ * @param delta value to add to the size counter's current value
+ */
+void
+_dbus_counter_adjust_size (DBusCounter *counter,
+ long delta)
+{
+ long old = counter->size_value;
+
+ counter->size_value += delta;
+
+#if 0
+ _dbus_verbose ("Adjusting counter %ld by %ld = %ld\n",
+ old, delta, counter->size_value);
+#endif
+
+ if (counter->notify_function != NULL &&
+ ((old < counter->notify_size_guard_value &&
+ counter->size_value >= counter->notify_size_guard_value) ||
+ (old >= counter->notify_size_guard_value &&
+ counter->size_value < counter->notify_size_guard_value)))
+ (* counter->notify_function) (counter, counter->notify_data);
+}
+
+/**
+ * Adjusts the value of the unix fd counter by the given
* delta which may be positive or negative.
* Calls the notify function from _dbus_counter_set_notify()
* if that function has been specified.
*
* @param counter the counter
- * @param delta value to add to the counter's current value
+ * @param delta value to add to the unix fds counter's current value
*/
void
-_dbus_counter_adjust (DBusCounter *counter,
- long delta)
+_dbus_counter_adjust_unix_fd (DBusCounter *counter,
+ long delta)
{
- long old = counter->value;
+ long old = counter->unix_fd_value;
- counter->value += delta;
+ counter->unix_fd_value += delta;
#if 0
_dbus_verbose ("Adjusting counter %ld by %ld = %ld\n",
- old, delta, counter->value);
+ old, delta, counter->unix_fd_value);
#endif
if (counter->notify_function != NULL &&
- ((old < counter->notify_guard_value &&
- counter->value >= counter->notify_guard_value) ||
- (old >= counter->notify_guard_value &&
- counter->value < counter->notify_guard_value)))
+ ((old < counter->notify_unix_fd_guard_value &&
+ counter->unix_fd_value >= counter->notify_unix_fd_guard_value) ||
+ (old >= counter->notify_unix_fd_guard_value &&
+ counter->unix_fd_value < counter->notify_unix_fd_guard_value)))
(* counter->notify_function) (counter, counter->notify_data);
}
/**
- * Gets the current value of the counter.
+ * Gets the current value of the size counter.
+ *
+ * @param counter the counter
+ * @returns its current size value
+ */
+long
+_dbus_counter_get_size_value (DBusCounter *counter)
+{
+ return counter->size_value;
+}
+
+/**
+ * Gets the current value of the unix fd counter.
*
* @param counter the counter
- * @returns its current value
+ * @returns its current unix fd value
*/
long
-_dbus_counter_get_value (DBusCounter *counter)
+_dbus_counter_get_unix_fd_value (DBusCounter *counter)
{
- return counter->value;
+ return counter->unix_fd_value;
}
/**
* Sets the notify function for this counter; the notify function is
- * called whenever the counter's value crosses the guard value in
+ * called whenever the counter's values cross the guard values in
* either direction (moving up, or moving down).
*
* @param counter the counter
- * @param guard_value the value we're notified if the counter crosses
+ * @param size_guard_value the value we're notified if the size counter crosses
+ * @param unix_fd_guard_value the value we're notified if the unix fd counter crosses
* @param function function to call in order to notify
* @param user_data data to pass to the function
*/
void
_dbus_counter_set_notify (DBusCounter *counter,
- long guard_value,
+ long size_guard_value,
+ long unix_fd_guard_value,
DBusCounterNotifyFunction function,
void *user_data)
{
- counter->notify_guard_value = guard_value;
+ 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;
}