php dbus 0.1.0 撰寫 DBus service 的使用經驗

class DbusEchoInterface {
    static function Echo() {
        return "hello";
    }
}

$bus->requestName('blog.rock');

// DBus 個體 '/blog/rock/obj1' 定義了介面 'blog.rock.Echo'.

$bus->registerObject('/blog/rock/obj1', 'blog.rock.Echo', 'DbusEchoInterface');
// DBus 個體 '/blog/rock/obj2' 定義了介面 'blog.rock.Echo'.

$bus->registerObject('/blog/rock/obj2', 'blog.rock.Echo', 'DbusEchoInterface');
// DBus 個體 '/blog/rock/abc' 定義了介面 'blog.abc.Hello'.

$bus->registerObject('/blog/rock/abc',  'blog.abc.Hello', 'DbusEchoInterface');

static $result_b;
    static function EchoTwo($a) {
        echo "Two";
        //BUG: (php-dbus 0.1.0) It does not copy value into set.

        // If you put local variables in set, it would not return correct values.

        //return new DbusSet($a, 2); //incorrect

        self::$result_b = 2; //put in a static variable.

        return new DBusSet($a, self::$result_b);
    }

// add signal 'Signal1' to interface 'blog.rock.Echo'

// of object '/blog/rock/obj1'

class DbusEchoInterface {
    static $signal1;

    static function emit() {
        // 在 DBus 個體內部透過成員主動發出訊號

        self::$signal1->send();
    }
}

// 新增一個 DbusSignal ，附加於 /blog/rock/obj1 個體之 blog.rock.Echo 介面上。

// 並指派給DbusEchoInterface::$signal1

DbusEchoInterface::$signal1 = new DbusSignal(
    $bus,
    '/blog/rock/obj1',
    'blog.rock.Echo',
    'Signal1'
);

//送出訊號。

DbusEchoInterface::$signal1->send();

<?php
// interface and methods, see:

//http://svn.php.net/viewvc/pecl/dbus/trunk/examples/request-name.php?view=markup


class DbusIntrospectableInterface {
    static $introspect_xml =<<<INTROSPECT_XML
<!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.freedesktop.DBus.Introspectable">
    <method name="Introspect">
      <arg name="data" direction="out" type="s"/>
    </method>
  </interface>
  <interface name="blog.rock">
    <method name="EchoZero">
      <arg direction="out" type="i"/>
    </method>
    <method name="EchoOne">
      <arg name="name" direction="in" type="s"/>
      <arg direction="out" type="s"/>
    </method>
    <method name="EchoTwo">
      <arg name="name" direction="in" type="s"/>
      <arg direction="out" type="s"/>
      <arg direction="out" type="i"/>
    </method>
    <method name="EchoArray">
      <arg direction="out" type="as"/>
    </method>
    <signal name="Singal1">
    </signal>
    <signal name="Singal2">
      <arg type="s"/>
    </signal>
  </interface>
</node>
INTROSPECT_XML;

    static function Introspect() {
        return DbusIntrospectableInterface::$introspect_xml;
    }
}

//echo DbusIntrospectableInterface::Introspect();

?>

<?php
//http://svn.php.net/viewvc/pecl/dbus/trunk/examples/signal-watch.php?view=markup

$bus = new Dbus( Dbus::BUS_SESSION );

$bus->addWatch( 'blog.rock' );
while (true) {
    $s = $bus->waitLoop(1000);
    if (!$s)
        continue;
    if ($s->matches('blog.rock', 'Signal1')) {
        echo "get signal 1\n";
    }
    if ($s->matches('blog.rock', 'Signal2')) {
        echo "get signal 2\n";
        var_dump($s->getData());
    }
}

?>

<?php
require_once 'my_introspectable.php';

// interface and methods, see:

//http://svn.php.net/viewvc/pecl/dbus/trunk/examples/request-name.php?view=markup

class DbusEchoInterface {
    static function EchoZero() {
        echo "Zero";
        return 0;
    }
    static function EchoOne($name) {
        echo "One";
        return "Hello " . $name;
    }

    static $result_b;
    static function EchoTwo($a) {
        echo "Two";
        //BUG: (php-dbus 0.1.0) It does not copy value into set.

        // If you put local variables in set, it would not return correct values.

        //return new DbusSet($a, 2);

        self::$result_b = 2;
        return new DBusSet($a, self::$result_b);
    }

    static function EchoArray() {
        echo "Array";
        //notice: dbus array cound not contain elements of multiple type.

        return array("array", "echo");
    }

// signals, see:

//http://svn.php.net/viewvc/pecl/dbus/trunk/examples/signal-send.php?view=markup

    static function TestSignal() {
        echo "emit signal";
        self::$Signal1->send();
        self::$Signal2->send("signal2");
    }

    static $Signal1;
    static $Signal2;
}

// connect to SessionBus

$bus = new Dbus( Dbus::BUS_SESSION, true);

define('SERVICE_NAME', 'blog.rock');
define('OBJECT_PATH', '/blog/rock');
define('MAIN_INTERFACE', 'blog.rock');

define('INTROSPECTABLE_INTERFACE', 'org.freedesktop.DBus.Introspectable');

// request service name.

$bus->requestName(SERVICE_NAME);

// add signal

DbusEchoInterface::$Signal1 = new DbusSignal(
    $bus,
    OBJECT_PATH,
    MAIN_INTERFACE,
    'Signal1'
);

DbusEchoInterface::$Signal2 = new DbusSignal(
    $bus,
    OBJECT_PATH,
    MAIN_INTERFACE,
    'Signal2'
);

// register object path and interface.

$bus->registerObject(OBJECT_PATH, MAIN_INTERFACE, 'DbusEchoInterface');

$bus->registerObject(OBJECT_PATH, INTROSPECTABLE_INTERFACE, 'DbusIntrospectableInterface');

// register another interface...

//$bus->registerObject('/nl/test', 'nl.another.test', 'AnotherService');


while (true) {
    try {
        $bus->waitLoop(1000);
        echo '.';
    }
    catch (Exception $e) {
        echo $e->getMessage();
    }
}
?>