зеркало из https://github.com/mozilla/gecko-dev.git
85 строки
2.3 KiB
C++
85 строки
2.3 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_DBusHelpers_h
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#define mozilla_DBusHelpers_h
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#include <dbus/dbus.h>
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#include "mozilla/UniquePtr.h"
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#include "mozilla/RefPtr.h"
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namespace mozilla {
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template <>
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struct RefPtrTraits<DBusMessage> {
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static void AddRef(DBusMessage* aMessage) {
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MOZ_ASSERT(aMessage);
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dbus_message_ref(aMessage);
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}
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static void Release(DBusMessage* aMessage) {
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MOZ_ASSERT(aMessage);
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dbus_message_unref(aMessage);
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}
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};
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template <>
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struct RefPtrTraits<DBusPendingCall> {
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static void AddRef(DBusPendingCall* aPendingCall) {
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MOZ_ASSERT(aPendingCall);
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dbus_pending_call_ref(aPendingCall);
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}
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static void Release(DBusPendingCall* aPendingCall) {
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MOZ_ASSERT(aPendingCall);
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dbus_pending_call_unref(aPendingCall);
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}
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};
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/*
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* |RefPtrTraits<DBusConnection>| specializes |RefPtrTraits<>|
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* for managing |DBusConnection| with |RefPtr|.
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*
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* |RefPtrTraits<DBusConnection>| will _not_ close the DBus
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* connection upon the final unref. The caller is responsible
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* for closing the connection.
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*/
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template <>
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struct RefPtrTraits<DBusConnection> {
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static void AddRef(DBusConnection* aConnection) {
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MOZ_ASSERT(aConnection);
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dbus_connection_ref(aConnection);
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}
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static void Release(DBusConnection* aConnection) {
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MOZ_ASSERT(aConnection);
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dbus_connection_unref(aConnection);
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}
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};
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/*
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* |DBusConnectionDelete| is a deleter for managing instances
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* of |DBusConnection| in |UniquePtr|. Upon destruction, it
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* will close an open connection before unref'ing the data
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* structure.
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*
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* Do not use |UniquePtr| with shared DBus connections. For
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* shared connections, use |RefPtr|.
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*/
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class DBusConnectionDelete {
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public:
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constexpr DBusConnectionDelete() {}
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void operator()(DBusConnection* aConnection) const {
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MOZ_ASSERT(aConnection);
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if (dbus_connection_get_is_connected(aConnection)) {
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dbus_connection_close(aConnection);
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}
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dbus_connection_unref(aConnection);
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}
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};
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} // namespace mozilla
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#endif // mozilla_DBusHelpers_h
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