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GDBusInterfaceSkeleton: Add locking

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Signed-off-by: David Zeuthen <davidz@redhat.com>
This commit is contained in:
David Zeuthen 2011-08-29 14:23:02 -04:00
parent 4e4505b8de
commit faec5d6b5c
1 changed files with 66 additions and 9 deletions
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75
gio/gdbusinterfaceskeleton.c
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@ -44,6 +44,8 @@
struct _GDBusInterfaceSkeletonPrivate
{
GMutex *lock;
GDBusObject *object;
GDBusInterfaceSkeletonFlags flags;
guint registration_id;
@ -86,6 +88,9 @@ g_dbus_interface_skeleton_finalize (GObject *object)
if (interface->priv->object != NULL)
g_object_remove_weak_pointer (G_OBJECT (interface->priv->object), (gpointer *) &interface->priv->object);
g_mutex_free (interface->priv->lock);
G_OBJECT_CLASS (g_dbus_interface_skeleton_parent_class)->finalize (object);
}
@ -228,6 +233,7 @@ static void
g_dbus_interface_skeleton_init (GDBusInterfaceSkeleton *interface)
{
interface->priv = G_TYPE_INSTANCE_GET_PRIVATE (interface, G_TYPE_DBUS_INTERFACE_SKELETON, GDBusInterfaceSkeletonPrivate);
interface->priv->lock = g_mutex_new ();
}
/* ---------------------------------------------------------------------------------------------------- */
@ -264,11 +270,17 @@ g_dbus_interface_skeleton_set_flags (GDBusInterfaceSkeleton *interface_,
GDBusInterfaceSkeletonFlags flags)
{
g_return_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_));
g_mutex_lock (interface_->priv->lock);
if (interface_->priv->flags != flags)
{
interface_->priv->flags = flags;
g_mutex_unlock (interface_->priv->lock);
g_object_notify (G_OBJECT (interface_), "g-flags");
}
else
{
g_mutex_unlock (interface_->priv->lock);
}
}
/**
@ -368,7 +380,11 @@ static GDBusObject *
g_dbus_interface_skeleton_get_object (GDBusInterface *interface_)
{
GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (interface_);
return interface->priv->object;
GDBusObject *ret;
g_mutex_lock (interface->priv->lock);
ret = interface->priv->object;
g_mutex_unlock (interface->priv->lock);
return ret;
}
static void
@ -376,11 +392,13 @@ g_dbus_interface_skeleton_set_object (GDBusInterface *interface_,
GDBusObject *object)
{
GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (interface_);
g_mutex_lock (interface->priv->lock);
if (interface->priv->object != NULL)
g_object_remove_weak_pointer (G_OBJECT (interface->priv->object), (gpointer *) &interface->priv->object);
interface->priv->object = object;
if (object != NULL)
g_object_add_weak_pointer (G_OBJECT (interface->priv->object), (gpointer *) &interface->priv->object);
g_mutex_unlock (interface->priv->lock);
}
static void
@ -441,13 +459,22 @@ dispatch_in_thread_func (GIOSchedulerJob *job,
gpointer user_data)
{
DispatchData *data = user_data;
GDBusInterfaceSkeletonFlags flags;
GDBusObject *object;
gboolean authorized;
g_mutex_lock (data->interface->priv->lock);
flags = data->interface->priv->flags;
object = data->interface->priv->object;
if (object != NULL)
g_object_ref (object);
g_mutex_unlock (data->interface->priv->lock);
/* first check on the enclosing object (if any), then the interface */
authorized = TRUE;
if (data->interface->priv->object != NULL)
if (object != NULL)
{
g_signal_emit_by_name (data->interface->priv->object,
g_signal_emit_by_name (object,
"authorize-method",
data->interface,
data->invocation,
@ -465,7 +492,7 @@ dispatch_in_thread_func (GIOSchedulerJob *job,
if (authorized)
{
gboolean run_in_thread;
run_in_thread = (data->interface->priv->flags & G_DBUS_INTERFACE_SKELETON_FLAGS_HANDLE_METHOD_INVOCATIONS_IN_THREAD);
run_in_thread = (flags & G_DBUS_INTERFACE_SKELETON_FLAGS_HANDLE_METHOD_INVOCATIONS_IN_THREAD);
if (run_in_thread)
{
/* might as well just re-use the existing thread */
@ -493,6 +520,9 @@ dispatch_in_thread_func (GIOSchedulerJob *job,
/* do nothing */
}
if (object != NULL)
g_object_unref (object);
return FALSE;
}
@ -505,11 +535,20 @@ g_dbus_interface_method_dispatch_helper (GDBusInterfaceSkeleton *interface
gboolean has_default_class_handler;
gboolean emit_authorized_signal;
gboolean run_in_thread;
GDBusInterfaceSkeletonFlags flags;
GDBusObject *object;
g_return_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface));
g_return_if_fail (method_call_func != NULL);
g_return_if_fail (G_IS_DBUS_METHOD_INVOCATION (invocation));
g_mutex_lock (interface->priv->lock);
flags = interface->priv->flags;
object = interface->priv->object;
if (object != NULL)
g_object_ref (object);
g_mutex_unlock (interface->priv->lock);
/* optimization for the common case where
*
* a) no handler is connected and class handler is not overridden (both interface and object); and
@ -525,11 +564,11 @@ g_dbus_interface_method_dispatch_helper (GDBusInterfaceSkeleton *interface
emit_authorized_signal = (has_handlers || !has_default_class_handler);
if (!emit_authorized_signal)
{
if (interface->priv->object != NULL)
emit_authorized_signal = _g_dbus_object_skeleton_has_authorize_method_handlers (G_DBUS_OBJECT_SKELETON (interface->priv->object));
if (object != NULL)
emit_authorized_signal = _g_dbus_object_skeleton_has_authorize_method_handlers (G_DBUS_OBJECT_SKELETON (object));
}
run_in_thread = (interface->priv->flags & G_DBUS_INTERFACE_SKELETON_FLAGS_HANDLE_METHOD_INVOCATIONS_IN_THREAD);
run_in_thread = (flags & G_DBUS_INTERFACE_SKELETON_FLAGS_HANDLE_METHOD_INVOCATIONS_IN_THREAD);
if (!emit_authorized_signal && !run_in_thread)
{
method_call_func (g_dbus_method_invocation_get_connection (invocation),
@ -558,6 +597,9 @@ g_dbus_interface_method_dispatch_helper (GDBusInterfaceSkeleton *interface
G_PRIORITY_DEFAULT,
NULL); /* GCancellable* */
}
if (object != NULL)
g_object_unref (object);
}
static void
@ -592,8 +634,12 @@ skeleton_intercept_handle_method_call (GDBusConnection *connection,
GDBusConnection *
g_dbus_interface_skeleton_get_connection (GDBusInterfaceSkeleton *interface_)
{
GDBusConnection *ret;
g_return_val_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_), NULL);
return interface_->priv->connection;
g_mutex_lock (interface_->priv->lock);
ret = interface_->priv->connection;
g_mutex_unlock (interface_->priv->lock);
return ret;
}
/**
@ -610,8 +656,12 @@ g_dbus_interface_skeleton_get_connection (GDBusInterfaceSkeleton *interface_)
const gchar *
g_dbus_interface_skeleton_get_object_path (GDBusInterfaceSkeleton *interface_)
{
const gchar *ret;
g_return_val_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_), NULL);
return interface_->priv->object_path;
g_mutex_lock (interface_->priv->lock);
ret = interface_->priv->object_path;
g_mutex_unlock (interface_->priv->lock);
return ret;
}
/**
@ -643,6 +693,8 @@ g_dbus_interface_skeleton_export (GDBusInterfaceSkeleton *interface_,
g_return_val_if_fail (g_variant_is_object_path (object_path), 0);
g_return_val_if_fail (error == NULL || *error == NULL, 0);
g_mutex_lock (interface_->priv->lock);
ret = FALSE;
if (interface_->priv->registration_id > 0)
{
@ -679,6 +731,7 @@ g_dbus_interface_skeleton_export (GDBusInterfaceSkeleton *interface_,
ret = TRUE;
out:
g_mutex_unlock (interface_->priv->lock);
return ret;
}
@ -697,6 +750,8 @@ g_dbus_interface_skeleton_unexport (GDBusInterfaceSkeleton *interface_)
g_return_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_));
g_return_if_fail (interface_->priv->registration_id > 0);
g_mutex_lock (interface_->priv->lock);
g_assert (interface_->priv->connection != NULL);
g_assert (interface_->priv->object_path != NULL);
g_assert (interface_->priv->hooked_vtable != NULL);
@ -710,6 +765,8 @@ g_dbus_interface_skeleton_unexport (GDBusInterfaceSkeleton *interface_)
interface_->priv->object_path = NULL;
interface_->priv->hooked_vtable = NULL;
interface_->priv->registration_id = 0;
g_mutex_unlock (interface_->priv->lock);
}
/* ---------------------------------------------------------------------------------------------------- */