To respond to signals, you can use theadd_signal_receiver(self,handler_function,signal_name=None,dbus_interface=None,bus_name=None,path=None, **keywords)method onBus objects. This arranges for a callback to be
7、method call time=1711595929.610841 sender=:1.0 -> destination=org.fedoraproject.CTsInstaller.Modules.Timezone serial=310 path=/org/fedoraproject/CTsInstaller/Modules/Timezone; interface=org.freedesktop.DBus.Properties; member=Get 8、string "org.fedoraproject.CTsInstaller.Modules.Timezone" 9、string ...
1.方法调用(method call) 在对象上执行一个方法 2.方法返回(method return)返回方法执行的结果 3.错误(error)调用方法产生的异常 4.信号(signal)通知指定的信号发生了,可以想象成“事件”。 要执行 D-BUS 对象的方法,需要向对象发送一个方法调用消息。它将完成一些处理并返回一个方法返回消息或者错误消息。信号的...
QDBusPendingCallasyncCall(constQString & method,constQVariant & arg1 = QVariant(),constQVariant & arg2= QVariant(),constQVariant & arg3 = QVariant(),constQVariant & arg4 = QVariant(),constQVariant & arg5 = QVariant(),constQVariant & arg6 = QVariant(),constQVariant & arg7 = Q...
sd_bus_call_async(bus, NULL, m, hello_callback, NULL, 0); systemctl_main(bus) list_unit_files r = sd_bus_call_method( // systemctl will call sd_bus_call_method to complete this behavior bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", ...
DBUS_MESSAGE_TYPE_METHOD_CALL - a synchronous method-call to be made to a service provider. DBUS_MESSAGE_TYPE_METHOD_RETURN - an asynchronous method-call to be made to a service provider. This sounds a bit wierd since this value actually represents an asynch reply-message in libdbus world...
} static void callback(DBusPendingCall *pending, void *user_data) { int i; DBUS_ERR ret = DBUS_OK; unsigned char * reply_payload; int reply_len; if(DBUS_OK !=(ret = dbus_method_reply(pending, &reply_payload, &reply_len))) { printf("test receive async reply error %d \n",ret...
To call a method, call the method of the same name on the proxy object, passing in the interface name via the dbus_interface keyword argument: 为了调用一个方法,在 proxy object 上调用同样名称的方法,通过 dbus_interface 关键词参数传递接口的名称。
Asynchronous method implementations (异步方法的实现) FIXME and also add an example, perhaps examples/example-async-service.py Emitting signals with dbus.service.signal To export a signal, use the decorator dbus.service.signal; to emit that signal, call the decorated method. The decorated method can...
2.在DBUS的底层接口中,应用需要自己构造方法调用消息(method call message),而不能使用代理。 3.方法调用消息里面的内容有:目的进程的bus name,方法的名字,方法的参数,目的进程的对象路径,以及可选的接口名称。 4.方法调用消息是发送到bus daemon中的。