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