QDBusAbstractAdaptor对象不导出已实现的dbus接口 [英] QDBusAbstractAdaptor object does not export implemented dbus interface
问题描述
我正在尝试使用Qt及其DBus功能为BlueZ v5.5实现配对代理。
I'm trying to implement a pairing agent for BlueZ v5.5 with Qt and its DBus functionality.
我有一个由qdbusxml2cpp生成的适配器类。我称为PairingAgentAdaptor的工具和一个带有实现的方法(PairingAgent)的类,该类作为适配器类实例化时的参数给出。
I have an adaptor class that is generated by the qdbusxml2cpp tool that I called PairingAgentAdaptor and a class with the implemented methods (PairingAgent) that I give as parameter on instantiation of the adaptor class.
我可以将对象注册为新对象代理,并且BlueZ守护程序说我的代理已注册。如果我尝试将手机与计算机配对,则BlueZ守护进程会说:对象路径'/ pairing / agent'上没有这样的接口'org.bluez.Agent1'。
I can register the object as a new agent and the BlueZ daemon says that my agent is registered. If I try to pair my phone with the computer, the BlueZ daemon says: "No such interface 'org.bluez.Agent1' at object path '/pairing/agent'."
我不知道我在做什么错。
I have no idea what I'm doing wrong. Could you please give me some hints?
亲切的问候
迈克尔
Kind regards Michael
代码:
main.cpp
// built using Qt 4.8.2
#include <QCoreApplication>
#include <bluedevil/bluedevil.h> // schaal's port to BlueZ 5
#define AGENT_PATH "/pairing/agent"
[...]
int main(int argc, char *argv[]) {
QCoreApplication app(argc, argv);
PairingAgent pairingAgent;
PairingAgentAdaptor pairingAgentAdaptor(&pairingAgent);
bool registerSuccess = QDBusConnection::systemBus().registerObject(QString(AGENT_PATH), &pairingAgentAdaptor);
if (registerSuccess) {
cout << "Registered as " << AGENT_PATH << endl;
} else {
QDBusConnection::systemBus().unregisterObject(QString(AGENT_PATH), QDBusConnection::UnregisterTree);
registerSuccess = QDBusConnection::systemBus().registerObject(QString(AGENT_PATH), &pairingAgentAdaptor);
if (registerSuccess) {
cout << "Registered as " << AGENT_PATH << " (round 2)" << endl;
} else {
cerr << "Registering of " << AGENT_PATH << " failed." << endl;
exit(1);
}
}
Manager* const manager = Manager::self();
manager->registerAgent(QString(AGENT_PATH), Manager::DisplayOnly);
return app.exec();
}
pairingagentadaptor.h
pairingagentadaptor.h
[...]
/*
* Adaptor class for interface org.bluez.Agent1
*/
class PairingAgentAdaptor: public QDBusAbstractAdaptor {
Q_OBJECT
Q_CLASSINFO("D-Bus Interface", "org.bluez.Agent1")
Q_CLASSINFO("D-Bus Introspection", ""
" <interface name=\"org.bluez.Agent1\">\n"
" <method name=\"Release\"/>\n"
" <method name=\"RequestPinCode\">\n"
" <arg direction=\"in\" type=\"o\"/>\n"
" <arg direction=\"out\" type=\"s\"/>\n"
" </method>\n"
" <method name=\"DisplayPinCode\">\n"
" <arg direction=\"in\" type=\"o\"/>\n"
" <arg direction=\"in\" type=\"s\"/>\n"
" </method>\n"
" <method name=\"RequestPasskey\">\n"
" <arg direction=\"in\" type=\"o\"/>\n"
" <arg direction=\"out\" type=\"u\"/>\n"
" </method>\n"
" <method name=\"DisplayPasskey\">\n"
" <arg direction=\"in\" type=\"o\"/>\n"
" <arg direction=\"in\" type=\"u\"/>\n"
" </method>\n"
" <method name=\"RequestConfirmation\">\n"
" <arg direction=\"in\" type=\"o\"/>\n"
" <arg direction=\"in\" type=\"u\"/>\n"
" </method>\n"
" <method name=\"RequestAuthorization\">\n"
" <arg direction=\"in\" type=\"o\"/>\n"
" <arg direction=\"in\" type=\"u\"/>\n"
" </method>\n"
" <method name=\"AuthorizeService\">\n"
" <arg direction=\"in\" type=\"o\"/>\n"
" <arg direction=\"in\" type=\"s\"/>\n"
" </method>\n"
" <method name=\"Cancel\"/>\n"
" </interface>\n"
"")
public:
PairingAgentAdaptor(QObject *parent);
virtual ~PairingAgentAdaptor();
public: // PROPERTIES
public Q_SLOTS: // METHODS
void AuthorizeService(const QDBusObjectPath &in0, const QString &in1);
void Cancel();
void DisplayPasskey(const QDBusObjectPath &in0, uint in1);
void DisplayPinCode(const QDBusObjectPath &in0, const QString &in1);
void Release();
void RequestAuthorization(const QDBusObjectPath &in0, uint in1);
void RequestConfirmation(const QDBusObjectPath &in0, uint in1);
uint RequestPasskey(const QDBusObjectPath &in0);
QString RequestPinCode(const QDBusObjectPath &in0);
Q_SIGNALS: // SIGNALS
};
推荐答案
我现在知道了。 :)
我的第一个错误:
PairingAgent pairingAgent;
PairingAgentAdaptor pairingAgentAdaptor(&pairingAgent);
bool registerSuccess = QDBusConnection::systemBus().registerObject(QString(AGENT_PATH), &pairingAgentAdaptor);
必须是
bool registerSuccess = QDBusConnection::systemBus().registerObject(QString(AGENT_PATH), &pairingAgent); // NEVER the adaptor!!!
我的第二个错误:org.bluez.Agent1的接口错误。正确的是:
My second mistake: I got the wrong interface for org.bluez.Agent1. The right one is:
<!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN" "http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">
<node>
<interface name="org.bluez.Agent1">
<method name="Release" />
<method name="RequestPinCode">
<arg direction="in" type="o" />
<arg direction="out" type="s" />
</method>
<method name="DisplayPinCode">
<arg direction="in" type="o" />
<arg direction="in" type="s" />
</method>
<method name="RequestPasskey">
<arg direction="in" type="o" />
<arg direction="out" type="u" />
</method>
<method name="DisplayPasskey">
<arg direction="in" type="o" />
<arg direction="in" type="u" />
<arg direction="in" type="q" />
</method>
<method name="RequestConfirmation">
<arg direction="in" type="o" />
<arg direction="in" type="u" />
</method>
<method name="RequestAuthorization">
<arg direction="in" type="o" />
</method>
<method name="AuthorizeService">
<arg direction="in" type="o" />
<arg direction="in" type="s" />
</method>
<method name="Cancel" />
</interface>
</node>
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