QT_BEGIN_NAMESPACE
/*!
\class QDBusServer
\inmodule QtDBus
\internal
\brief The QDBusServer class provides peer-to-peer communication
between processes on the same computer.
*/
/*!
Constructs a QDBusServer with the given \a address, and the given
\a parent.
*/
QDBusServer::QDBusServer(const QString &address, QObject *parent)
: QObject(parent)
{
if (!qdbus_loadLibDBus()) {
d = 0;
return;
}
d = new QDBusConnectionPrivate(this);
if (address.isEmpty())
return;
QObject::connect(d, SIGNAL(newServerConnection(QDBusConnection)),
this, SIGNAL(newConnection(QDBusConnection)));
// server = q_dbus_server_listen( "unix:tmpdir=/tmp", &error);
QDBusErrorInternal error;
d->setServer(q_dbus_server_listen(address.toUtf8().constData(), error), error);
}
/*!
\since 4.8
Opens a peer-to-peer connection on address \a address and associate with it the
connection name \a name. Returns a QDBusConnection object associated with that connection.
*/
QDBusConnection QDBusConnection::connectToPeer(const QString &address,
const QString &name)
{
// Q_ASSERT_X(QCoreApplication::instance(), "QDBusConnection::addConnection",
// "Cannot create connection without a Q[Core]Application instance");
if (!qdbus_loadLibDBus()) {
QDBusConnectionPrivate *d = 0;
return QDBusConnection(d);
}
QMutexLocker locker(&_q_manager()->mutex);
QDBusConnectionPrivate *d = _q_manager()->connection(name);
if (d || name.isEmpty())
return QDBusConnection(d);
d = new QDBusConnectionPrivate;
// setPeer does the error handling for us
QDBusErrorInternal error;
DBusConnection *c = q_dbus_connection_open_private(address.toUtf8().constData(), error);
d->setPeer(c, error);
_q_manager()->setConnection(name, d);
QDBusConnection retval(d);
return retval;
}
QT_BEGIN_NAMESPACE
/*!
\class QDBusServer
\inmodule QtDBus
\brief The QDBusServer class provides peer-to-peer communication
between processes on the same computer.
*/
/*!
Constructs a QDBusServer with the given \a address, and the given
\a parent.
*/
QDBusServer::QDBusServer(const QString &address, QObject *parent)
: QObject(parent), d(nullptr)
{
if (address.isEmpty())
return;
if (!qdbus_loadLibDBus())
return;
QDBusConnectionManager *instance = QDBusConnectionManager::instance();
if (!instance)
return;
emit instance->serverRequested(address, this);
QObject::connect(d, SIGNAL(newServerConnection(QDBusConnectionPrivate*)),
this, SLOT(_q_newConnection(QDBusConnectionPrivate*)), Qt::QueuedConnection);
}
QT_BEGIN_NAMESPACE
/*!
\class QDBusServer
\inmodule QtDBus
\brief The QDBusServer class provides peer-to-peer communication
between processes on the same computer.
*/
/*!
Constructs a QDBusServer with the given \a address, and the given
\a parent.
*/
QDBusServer::QDBusServer(const QString &address, QObject *parent)
: QObject(parent)
{
if (address.isEmpty())
return;
if (!qdbus_loadLibDBus()) {
d = 0;
return;
}
d = new QDBusConnectionPrivate(this);
QMutexLocker locker(&QDBusConnectionManager::instance()->mutex);
QDBusConnectionManager::instance()->setConnection(QLatin1String("QDBusServer-") + QString::number(reinterpret_cast<qulonglong>(d)), d);
QObject::connect(d, SIGNAL(newServerConnection(QDBusConnection)),
this, SIGNAL(newConnection(QDBusConnection)));
QDBusErrorInternal error;
d->setServer(q_dbus_server_listen(address.toUtf8().constData(), error), error);
}
void (*qdbus_resolve_me(const char *name))()
{
if (!qdbus_loadLibDBus())
qFatal("Cannot find libdbus-1 in your system to resolve symbol '%s'.", name);
QFunctionPointer ptr = qdbus_libdbus->resolve(name);
if (!ptr)
qFatal("Cannot resolve '%s' in your libdbus-1.", name);
return ptr;
}
void *qdbus_resolve_me(const char *name)
{
void *ptr = 0;
if (!qdbus_loadLibDBus())
qFatal("Cannot find libdbus-1 in your system to resolve symbol '%s'.", name);
ptr = qdbus_libdbus->resolve(name);
if (!ptr)
qFatal("Cannot resolve '%s' in your libdbus-1.", name);
return ptr;
}
/*!
Constructs an empty QDBusArgument argument.
An empty QDBusArgument object does not allow either reading or
writing to be performed.
*/
QDBusArgument::QDBusArgument()
{
if (!qdbus_loadLibDBus()) {
d = 0;
return;
}
QDBusMarshaller *dd = new QDBusMarshaller(0);
d = dd;
// create a new message with any type, we won't sent it anyways
dd->message = q_dbus_message_new(DBUS_MESSAGE_TYPE_METHOD_CALL);
q_dbus_message_iter_init_append(dd->message, &dd->iterator);
}
void (*qdbus_resolve_me(const char *name))()
{
#ifndef QT_NO_LIBRARY
if (!qdbus_loadLibDBus())
qFatal("Cannot find libdbus-1 in your system to resolve symbol '%s'.", name);
QFunctionPointer ptr = qdbus_libdbus->resolve(name);
if (!ptr)
qFatal("Cannot resolve '%s' in your libdbus-1.", name);
return ptr;
#else
Q_UNUSED(name);
return 0;
#endif
}
/*!
Constructs a QDBusServer with the given \a parent. The server will listen
for connections in \c {/tmp}.
*/
QDBusServer::QDBusServer(QObject *parent)
: QObject(parent)
{
const QString address = QLatin1String("unix:tmpdir=/tmp");
if (!qdbus_loadLibDBus()) {
d = 0;
return;
}
d = new QDBusConnectionPrivate(this);
QObject::connect(d, SIGNAL(newServerConnection(QDBusConnection)),
this, SIGNAL(newConnection(QDBusConnection)));
QDBusErrorInternal error;
d->setServer(q_dbus_server_listen(address.toUtf8().constData(), error), error);
}
/*!
Opens a connection of type \a type to one of the known busses and
associate with it the connection name \a name. Returns a
QDBusConnection object associated with that connection.
*/
QDBusConnection QDBusConnection::connectToBus(BusType type, const QString &name)
{
// Q_ASSERT_X(QCoreApplication::instance(), "QDBusConnection::addConnection",
// "Cannot create connection without a Q[Core]Application instance");
if (!qdbus_loadLibDBus()) {
QDBusConnectionPrivate *d = 0;
return QDBusConnection(d);
}
QMutexLocker locker(&_q_manager()->mutex);
QDBusConnectionPrivate *d = _q_manager()->connection(name);
if (d || name.isEmpty())
return QDBusConnection(d);
d = new QDBusConnectionPrivate;
DBusConnection *c = 0;
QDBusErrorInternal error;
switch (type) {
case SystemBus:
c = q_dbus_bus_get_private(DBUS_BUS_SYSTEM, error);
break;
case SessionBus:
c = q_dbus_bus_get_private(DBUS_BUS_SESSION, error);
break;
case ActivationBus:
c = q_dbus_bus_get_private(DBUS_BUS_STARTER, error);
break;
}
d->setConnection(c, error); //setConnection does the error handling for us
_q_manager()->setConnection(name, d);
QDBusConnection retval(d);
// create the bus service
// will lock in QDBusConnectionPrivate::connectRelay()
d->setBusService(retval);
return retval;
}
/*!
Constructs a QDBusServer with the given \a parent. The server will listen
for connections in \c {/tmp} (on Unix systems) or on a TCP port bound to
localhost (elsewhere).
*/
QDBusServer::QDBusServer(QObject *parent)
: QObject(parent), d(nullptr)
{
#ifdef Q_OS_UNIX
// Use Unix sockets on Unix systems only
const QString address = QStringLiteral("unix:tmpdir=/tmp");
#else
const QString address = QStringLiteral("tcp:");
#endif
if (!qdbus_loadLibDBus())
return;
QDBusConnectionManager *instance = QDBusConnectionManager::instance();
if (!instance)
return;
emit instance->serverRequested(address, this);
QObject::connect(d, SIGNAL(newServerConnection(QDBusConnectionPrivate*)),
this, SLOT(_q_newConnection(QDBusConnectionPrivate*)), Qt::QueuedConnection);
}
QByteArray QDBusArgumentPrivate::createSignature(int id)
{
if (!qdbus_loadLibDBus())
return "";
QByteArray signature;
QDBusMarshaller *marshaller = new QDBusMarshaller(0);
marshaller->ba = &signature;
// run it
void *null = 0;
QVariant v(id, null);
QDBusArgument arg(marshaller);
QDBusMetaType::marshall(arg, v.userType(), v.constData());
arg.d = 0;
// delete it
bool ok = marshaller->ok;
delete marshaller;
if (signature.isEmpty() || !ok || !QDBusUtil::isValidSingleSignature(QString::fromLatin1(signature))) {
qWarning("QDBusMarshaller: type `%s' produces invalid D-BUS signature `%s' "
"(Did you forget to call beginStructure() ?)",
QMetaType::typeName(id),
signature.isEmpty() ? "<empty>" : signature.constData());
return "";
} else if ((signature.at(0) != DBUS_TYPE_ARRAY && signature.at(0) != DBUS_STRUCT_BEGIN_CHAR) ||
(signature.at(0) == DBUS_TYPE_ARRAY && (signature.at(1) == DBUS_TYPE_BYTE ||
signature.at(1) == DBUS_TYPE_STRING))) {
qWarning("QDBusMarshaller: type `%s' attempts to redefine basic D-BUS type '%s' (%s) "
"(Did you forget to call beginStructure() ?)",
QMetaType::typeName(id),
signature.constData(),
QMetaType::typeName(QDBusMetaType::signatureToType(signature)));
return "";
}
return signature;
}
/*!
\internal
Constructs a DBusMessage object from \a message. The returned value must be de-referenced
with q_dbus_message_unref. The \a capabilities flags indicates which capabilities to use.
The \a error object is set to indicate the error if anything went wrong with the
marshalling. Usually, this error message will be placed in the reply, as if the call failed.
The \a error pointer must not be null.
*/
DBusMessage *QDBusMessagePrivate::toDBusMessage(const QDBusMessage &message, QDBusConnection::ConnectionCapabilities capabilities,
QDBusError *error)
{
if (!qdbus_loadLibDBus()) {
*error = QDBusError(QDBusError::Failed, QLatin1String("Could not open lidbus-1 library"));
return 0;
}
DBusMessage *msg = 0;
const QDBusMessagePrivate *d_ptr = message.d_ptr;
switch (d_ptr->type) {
case DBUS_MESSAGE_TYPE_INVALID:
//qDebug() << "QDBusMessagePrivate::toDBusMessage" << "message is invalid";
break;
case DBUS_MESSAGE_TYPE_METHOD_CALL:
// only service and interface can be empty -> path and name must not be empty
if (!d_ptr->parametersValidated) {
if (!QDBusUtil::checkBusName(d_ptr->service, QDBusUtil::EmptyAllowed, error))
return 0;
if (!QDBusUtil::checkObjectPath(d_ptr->path, QDBusUtil::EmptyNotAllowed, error))
return 0;
if (!QDBusUtil::checkInterfaceName(d_ptr->interface, QDBusUtil::EmptyAllowed, error))
return 0;
if (!QDBusUtil::checkMemberName(d_ptr->name, QDBusUtil::EmptyNotAllowed, error, "method"))
return 0;
}
msg = q_dbus_message_new_method_call(data(d_ptr->service.toUtf8()), d_ptr->path.toUtf8(),
data(d_ptr->interface.toUtf8()), d_ptr->name.toUtf8());
q_dbus_message_set_auto_start( msg, d_ptr->autoStartService );
break;
case DBUS_MESSAGE_TYPE_METHOD_RETURN:
msg = q_dbus_message_new(DBUS_MESSAGE_TYPE_METHOD_RETURN);
if (!d_ptr->localMessage) {
q_dbus_message_set_destination(msg, q_dbus_message_get_sender(d_ptr->reply));
q_dbus_message_set_reply_serial(msg, q_dbus_message_get_serial(d_ptr->reply));
}
break;
case DBUS_MESSAGE_TYPE_ERROR:
// error name can't be empty
if (!d_ptr->parametersValidated
&& !QDBusUtil::checkErrorName(d_ptr->name, QDBusUtil::EmptyNotAllowed, error))
return 0;
msg = q_dbus_message_new(DBUS_MESSAGE_TYPE_ERROR);
q_dbus_message_set_error_name(msg, d_ptr->name.toUtf8());
if (!d_ptr->localMessage) {
q_dbus_message_set_destination(msg, q_dbus_message_get_sender(d_ptr->reply));
q_dbus_message_set_reply_serial(msg, q_dbus_message_get_serial(d_ptr->reply));
}
break;
case DBUS_MESSAGE_TYPE_SIGNAL:
// nothing can be empty here
if (!d_ptr->parametersValidated) {
if (!QDBusUtil::checkObjectPath(d_ptr->path, QDBusUtil::EmptyNotAllowed, error))
return 0;
if (!QDBusUtil::checkInterfaceName(d_ptr->interface, QDBusUtil::EmptyAllowed, error))
return 0;
if (!QDBusUtil::checkMemberName(d_ptr->name, QDBusUtil::EmptyNotAllowed, error, "method"))
return 0;
}
msg = q_dbus_message_new_signal(d_ptr->path.toUtf8(), d_ptr->interface.toUtf8(),
d_ptr->name.toUtf8());
break;
default:
Q_ASSERT(false);
break;
}
// if we got here, the parameters validated
// and since the message parameters cannot be changed once the message is created
// we can record this fact
d_ptr->parametersValidated = true;
QDBusMarshaller marshaller(capabilities);
QVariantList::ConstIterator it = d_ptr->arguments.constBegin();
QVariantList::ConstIterator cend = d_ptr->arguments.constEnd();
q_dbus_message_iter_init_append(msg, &marshaller.iterator);
if (!d_ptr->message.isEmpty())
// prepend the error message
marshaller.append(d_ptr->message);
for ( ; it != cend; ++it)
marshaller.appendVariantInternal(*it);
// check if everything is ok
if (marshaller.ok)
return msg;
// not ok;
q_dbus_message_unref(msg);
*error = QDBusError(QDBusError::Failed, QLatin1String("Marshalling failed: ") + marshaller.errorString);
return 0;
}
void *qdbus_resolve_conditionally(const char *name)
{
if (qdbus_loadLibDBus())
return qdbus_libdbus->resolve(name);
return 0;
}
