Struct MessageBuf

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pub struct MessageBuf { /* private fields */ }

Expand description

An owned D-Bus message.

This is the owned variant of a Message, to convert to a Message, use MessageBuf::borrow.

Implementations§

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impl MessageBuf

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pub fn method_call( path: Box<ObjectPath>, member: Box<str>, serial: Serial, ) -> Self

Construct a method call.

§Examples

use tokio_dbus::{Message, ObjectPath, MessageBuf, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = Message::method_call(PATH, "Hello", send.next_serial()).to_owned();
let m2 = MessageBuf::method_call(PATH.into(), "Hello".into(), m.serial());
assert_eq!(m, m2);

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pub fn method_return(self, serial: Serial) -> Self

Convert this message into a MessageKind::MethodReturn message with an empty body where the reply serial matches that of the current message.

The send argument is used to populate the next serial number.

§Examples

use tokio_dbus::{Message, MessageKind, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.method_call(PATH, "Hello")
    .with_sender("se.tedro.DBusExample")
    .with_destination("org.freedesktop.DBus")
    .to_owned();

let m2 = m.clone().method_return(send.next_serial());
assert!(matches!(m2.kind(), MessageKind::MethodReturn { .. }));

assert_eq!(m.sender(), m2.destination());
assert_eq!(m.destination(), m2.sender());

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pub fn signal(path: Box<ObjectPath>, member: Box<str>, serial: Serial) -> Self

Construct a signal MessageBuf.

§Examples

use tokio_dbus::{MessageBuf, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.signal(PATH, "Hello").to_owned();
let m2 = MessageBuf::signal(PATH.into(), "Hello".into(), m.serial());
assert_eq!(m, m2);

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pub fn error(self, error_name: Box<str>, serial: Serial) -> Self

Convert this message into a MessageKind::Error message with an empty body where the reply serial matches that of the current message.

§Examples

use tokio_dbus::{Message, MessageKind, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.method_call(PATH, "Hello")
    .with_sender("se.tedro.DBusExample")
    .with_destination("org.freedesktop.DBus");

let m2 = m.clone().error("org.freedesktop.DBus.UnknownMethod", send.next_serial());
assert!(matches!(m2.kind(), MessageKind::Error { .. }));

assert_eq!(m.sender(), m2.destination());
assert_eq!(m.destination(), m2.sender());

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pub fn borrow(&self) -> Message<'_>

Borrow into a Message.

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pub fn kind(&self) -> MessageKind<'_>

Get the kind of the message.

§Examples

use tokio_dbus::{Message, MessageKind, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.method_call(PATH, "Hello");
assert!(matches!(m.kind(), MessageKind::MethodCall { .. }));

let m2 = m.error("org.freedesktop.DBus.UnknownMethod", send.next_serial());
assert!(matches!(m2.kind(), MessageKind::Error { .. }));

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pub fn with_body(self, body: BodyBuf) -> Self

Modify the body and signature of the message to match that of the provided body buffer.

§Examples

use tokio_dbus::{BodyBuf, MessageKind, ObjectPath, SendBuf, Signature};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();
let mut body = BodyBuf::new();

body.store("Hello World!");

let m = send.method_call(PATH, "Hello")
    .to_owned()
    .with_body(body);

assert!(matches!(m.kind(), MessageKind::MethodCall { .. }));
assert_eq!(m.signature(), Signature::STRING);

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pub fn body(&self) -> Body<'_>

Get a buffer to the body of the message.

§Examples

use tokio_dbus::{BodyBuf, MessageKind, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();
let mut body = BodyBuf::new();

body.store(42u32);
body.store("Hello World!");

let m = send.method_call(PATH, "Hello")
    .to_owned()
    .with_body(body);

assert!(matches!(m.kind(), MessageKind::MethodCall { .. }));
assert_eq!(m.signature(), "us");

let mut r = m.body();
assert_eq!(r.load::<u32>()?, 42);
assert_eq!(r.read::<str>()?, "Hello World!");

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pub fn serial(&self) -> Serial

Get the serial of the message.

§Examples

use tokio_dbus::{Message, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.method_call(PATH, "Hello");
let initial = m.serial();
let m2 = m.with_serial(send.next_serial());
assert_ne!(initial, m2.serial());

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pub fn with_serial(self, serial: Serial) -> Self

Modify the serial of the message.

§Examples

use tokio_dbus::{Message, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.method_call(PATH, "Hello");
let m2 = send.method_call(PATH, "Hello");
let m2 = m2.with_serial(m.serial());
assert_eq!(m.serial(), m2.serial());

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pub fn flags(&self) -> Flags

Get the flags of the message.

§Examples

use tokio_dbus::{Flags, Message, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.method_call(PATH, "Hello");
assert_eq!(m.flags(), Flags::default());

let m2 = m.with_flags(Flags::NO_REPLY_EXPECTED);
assert_eq!(m2.flags(), Flags::NO_REPLY_EXPECTED);

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pub fn with_flags(self, flags: Flags) -> Self

Modify the flags of the message.

§Examples

use tokio_dbus::{Flags, Message, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.method_call(PATH, "Hello");
assert_eq!(m.flags(), Flags::default());

let m2 = m.with_flags(Flags::NO_REPLY_EXPECTED);
assert_eq!(m2.flags(), Flags::NO_REPLY_EXPECTED);

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pub fn interface(&self) -> Option<&str>

Get the interface of the message.

§Examples

use tokio_dbus::{Message, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.method_call(PATH, "Hello").to_owned();
assert_eq!(m.interface(), None);

let m2 = m.with_interface("org.freedesktop.DBus".into());
assert_eq!(m2.interface(), Some("org.freedesktop.DBus"));

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pub fn with_interface(self, interface: Box<str>) -> Self

Modify the interface of the message.

§Examples

use tokio_dbus::{Message, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.method_call(PATH, "Hello").to_owned();
assert_eq!(m.interface(), None);

let m2 = m.with_interface("org.freedesktop.DBus".into());
assert_eq!(m2.interface(), Some("org.freedesktop.DBus"));

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pub fn destination(&self) -> Option<&str>

Get the destination of the message.

§Examples

use tokio_dbus::{Message, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.method_call(PATH, "Hello").to_owned();
assert_eq!(m.destination(), None);

let m2 = m.with_destination(":1.131".into());
assert_eq!(m2.destination(), Some(":1.131"));

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pub fn with_destination(self, destination: Box<str>) -> Self

Modify the destination of the message.

§Examples

use tokio_dbus::{Message, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.method_call(PATH, "Hello").to_owned();
assert_eq!(m.destination(), None);

let m2 = m.with_destination(":1.131".into());
assert_eq!(m2.destination(), Some(":1.131"));

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pub fn sender(&self) -> Option<&str>

Get the sender of the message.

§Examples

use tokio_dbus::{Message, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.method_call(PATH, "Hello").to_owned();
assert_eq!(m.destination(), None);

let m2 = m.with_sender(":1.131".into());
assert_eq!(m2.sender(), Some(":1.131"));

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pub fn with_sender(self, sender: Box<str>) -> Self

Modify the sender of the message.

§Examples

use tokio_dbus::{Message, ObjectPath, SendBuf};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.method_call(PATH, "Hello").to_owned();
assert_eq!(m.destination(), None);

let m2 = m.with_sender(":1.131".into());
assert_eq!(m2.sender(), Some(":1.131"));

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pub fn signature(&self) -> &Signature

Get the signature of the message.

§Examples

use tokio_dbus::{BodyBuf, ObjectPath, SendBuf, Signature};

const PATH: &ObjectPath = ObjectPath::new_const(b"/org/freedesktop/DBus");

let mut send = SendBuf::new();

let m = send.method_call(PATH, "Hello").to_owned();
assert_eq!(m.signature(), Signature::EMPTY);

let mut body = BodyBuf::new();
body.store("Hello World!");

let m2 = m.with_body(body);
assert_eq!(m2.signature(), Signature::STRING);