dbus-1.3.11: A client library for the D-Bus IPC system.

Safe Haskell | None
Language | Haskell2010

DBus

Contents

- Messages
  - Method calls
  - Method returns
  - Method errors
  - Signals
  - Received messages
- Variants
- Signatures
- Object paths
- Names
  - Interface names
  - Member names
  - Error names
  - Bus names
- Non-native containers
  - Structures
  - Arrays
  - Dictionaries
- Addresses
- Message marshaling
  - Marshal
  - Unmarshal
  - Message serials
- D-Bus UUIDs

Description

Basic types, useful to every D-Bus application.

Authors of client applications should import DBus.Client, which provides an easy RPC-oriented interface to D-Bus methods and signals.

Synopsis

- class Message a
- data MethodCall
- methodCall :: ObjectPath -> InterfaceName -> MemberName -> MethodCall
- methodCallPath :: MethodCall -> ObjectPath
- methodCallInterface :: MethodCall -> Maybe InterfaceName
- methodCallMember :: MethodCall -> MemberName
- methodCallSender :: MethodCall -> Maybe BusName
- methodCallDestination :: MethodCall -> Maybe BusName
- methodCallAutoStart :: MethodCall -> Bool
- methodCallReplyExpected :: MethodCall -> Bool
- methodCallBody :: MethodCall -> [Variant]
- data MethodReturn
- methodReturn :: Serial -> MethodReturn
- methodReturnSerial :: MethodReturn -> Serial
- methodReturnSender :: MethodReturn -> Maybe BusName
- methodReturnDestination :: MethodReturn -> Maybe BusName
- methodReturnBody :: MethodReturn -> [Variant]
- data MethodError
- methodError :: Serial -> ErrorName -> MethodError
- methodErrorName :: MethodError -> ErrorName
- methodErrorSerial :: MethodError -> Serial
- methodErrorSender :: MethodError -> Maybe BusName
- methodErrorDestination :: MethodError -> Maybe BusName
- methodErrorBody :: MethodError -> [Variant]
- methodErrorMessage :: MethodError -> String
- data Signal
- signal :: ObjectPath -> InterfaceName -> MemberName -> Signal
- signalPath :: Signal -> ObjectPath
- signalMember :: Signal -> MemberName
- signalInterface :: Signal -> InterfaceName
- signalSender :: Signal -> Maybe BusName
- signalDestination :: Signal -> Maybe BusName
- signalBody :: Signal -> [Variant]
- data ReceivedMessage
  - = ReceivedMethodCall Serial MethodCall
  - | ReceivedMethodReturn Serial MethodReturn
  - | ReceivedMethodError Serial MethodError
  - | ReceivedSignal Serial Signal
- receivedMessageSerial :: ReceivedMessage -> Serial
- receivedMessageSender :: ReceivedMessage -> Maybe BusName
- receivedMessageBody :: ReceivedMessage -> [Variant]
- data Variant
- class IsVariant a where
  - toVariant :: a -> Variant
  - fromVariant :: Variant -> Maybe a
- variantType :: Variant -> Type
- class IsValue a => IsAtom a
- class IsVariant a => IsValue a
- typeOf :: IsValue a => a -> Type
- typeOf' :: IsValue a => Proxy a -> Type
- data Signature
- data Type
  - = TypeBoolean
  - | TypeWord8
  - | TypeWord16
  - | TypeWord32
  - | TypeWord64
  - | TypeInt16
  - | TypeInt32
  - | TypeInt64
  - | TypeDouble
  - | TypeUnixFd
  - | TypeString
  - | TypeSignature
  - | TypeObjectPath
  - | TypeVariant
  - | TypeArray Type
  - | TypeDictionary Type Type
  - | TypeStructure [Type]
- signature :: MonadThrow m => [Type] -> m Signature
- signature_ :: [Type] -> Signature
- signatureTypes :: Signature -> [Type]
- formatSignature :: Signature -> String
- parseSignature :: MonadThrow m => String -> m Signature
- data ObjectPath
- objectPath_ :: String -> ObjectPath
- formatObjectPath :: ObjectPath -> String
- parseObjectPath :: MonadThrow m => String -> m ObjectPath
- data InterfaceName
- interfaceName_ :: String -> InterfaceName
- formatInterfaceName :: InterfaceName -> String
- parseInterfaceName :: MonadThrow m => String -> m InterfaceName
- data MemberName
- memberName_ :: String -> MemberName
- formatMemberName :: MemberName -> String
- parseMemberName :: MonadThrow m => String -> m MemberName
- data ErrorName
- errorName_ :: String -> ErrorName
- formatErrorName :: ErrorName -> String
- parseErrorName :: MonadThrow m => String -> m ErrorName
- data BusName
- busName_ :: String -> BusName
- formatBusName :: BusName -> String
- parseBusName :: MonadThrow m => String -> m BusName
- data Structure
- structureItems :: Structure -> [Variant]
- data Array
- arrayItems :: Array -> [Variant]
- data Dictionary
- dictionaryItems :: Dictionary -> [(Variant, Variant)]
- data Address
- addressMethod :: Address -> String
- addressParameters :: Address -> Map String String
- address :: String -> Map String String -> Maybe Address
- formatAddress :: Address -> String
- formatAddresses :: [Address] -> String
- parseAddress :: String -> Maybe Address
- parseAddresses :: String -> Maybe [Address]
- getSystemAddress :: IO (Maybe Address)
- getSessionAddress :: IO (Maybe Address)
- getStarterAddress :: IO (Maybe Address)
- data Endianness
  - = LittleEndian
  - | BigEndian
- marshal :: Message msg => Endianness -> Serial -> msg -> Either MarshalError ByteString
- marshalWithFds :: Message msg => Endianness -> Serial -> msg -> Either MarshalError (ByteString, [Fd])
- data MarshalError
- marshalErrorMessage :: MarshalError -> String
- unmarshal :: ByteString -> Either UnmarshalError ReceivedMessage
- unmarshalWithFds :: ByteString -> [Fd] -> Either UnmarshalError ReceivedMessage
- data UnmarshalError
- unmarshalErrorMessage :: UnmarshalError -> String
- data Serial
- serialValue :: Serial -> Word32
- firstSerial :: Serial
- nextSerial :: Serial -> Serial
- data UUID
- formatUUID :: UUID -> String
- randomUUID :: IO UUID

# Messages

class Message a #

Minimal complete definition

messageTypeCode, messageHeaderFields, messageBody

#### Instances

Instances details

Message MethodCall # |
Instance details Defined in DBus.Internal.Message Methods messageTypeCode :: MethodCall -> Word8 # messageHeaderFields :: MethodCall -> [HeaderField] # messageBody :: MethodCall -> [Variant] # messageFlags :: MethodCall -> Word8 #
Message MethodError # |
Instance details Defined in DBus.Internal.Message Methods messageTypeCode :: MethodError -> Word8 # messageHeaderFields :: MethodError -> [HeaderField] # messageBody :: MethodError -> [Variant] # messageFlags :: MethodError -> Word8 #
Message MethodReturn # |
Instance details Defined in DBus.Internal.Message Methods messageTypeCode :: MethodReturn -> Word8 # messageHeaderFields :: MethodReturn -> [HeaderField] # messageBody :: MethodReturn -> [Variant] # messageFlags :: MethodReturn -> Word8 #
Message Signal # |
Instance details Defined in DBus.Internal.Message Methods messageTypeCode :: Signal -> Word8 # messageHeaderFields :: Signal -> [HeaderField] # messageBody :: Signal -> [Variant] # messageFlags :: Signal -> Word8 #

## Method calls

data MethodCall #

A method call is a request to run some procedure exported by the remote process. Procedures are identified by an (object_path, interface_name, method_name) tuple.

#### Instances

Instances details

Message MethodCall # |
Instance details Defined in DBus.Internal.Message Methods messageTypeCode :: MethodCall -> Word8 # messageHeaderFields :: MethodCall -> [HeaderField] # messageBody :: MethodCall -> [Variant] # messageFlags :: MethodCall -> Word8 #
Show MethodCall # |
Instance details Defined in DBus.Internal.Message Methods showsPrec :: Int -> MethodCall -> ShowS # show :: MethodCall -> String # showList :: [MethodCall] -> ShowS #
Eq MethodCall # |
Instance details Defined in DBus.Internal.Message Methods (==) :: MethodCall -> MethodCall -> Bool # (/=) :: MethodCall -> MethodCall -> Bool #

methodCall :: ObjectPath -> InterfaceName -> MemberName -> MethodCall #

Construct a new `MethodCall` for the given object, interface, and method.

Use fields such as `methodCallDestination` and `methodCallBody` to populate a `MethodCall`.

    {-# LANGUAGE OverloadedStrings #-}

    methodCall "/" "org.example.Math" "Add"
        { methodCallDestination = Just "org.example.Calculator"
        , methodCallBody = [toVariant (1 :: Int32), toVariant (2 :: Int32)]
        }

methodCallPath :: MethodCall -> ObjectPath #

The object path of the method call. Conceptually, object paths act like a procedural language's pointers. Each object referenced by a path is a collection of procedures.

methodCallInterface :: MethodCall -> Maybe InterfaceName #

The interface of the method call. Each object may implement any number of interfaces. Each method is part of at least one interface.

In certain cases, this may be `Nothing`, but most users should set it to a value.

methodCallMember :: MethodCall -> MemberName #

The method name of the method call. Method names are unique within an interface, but might not be unique within an object.

methodCallSender :: MethodCall -> Maybe BusName #

The name of the application that sent this call.

Most users will just leave this empty, because the bus overwrites the sender for security reasons. Setting the sender manually is used for peer-peer connections.

Defaults to `Nothing`.

methodCallDestination :: MethodCall -> Maybe BusName #

The name of the application to send the call to.

Most users should set this. If a message with no destination is sent to the bus, the bus will behave as if the destination was set to `org.freedesktop.DBus`. For peer-peer connections, the destination can be empty because there is only one peer.

Defaults to `Nothing`.

methodCallAutoStart :: MethodCall -> Bool #

Set whether the bus should auto-start the remote

Defaults to `True`.

methodCallReplyExpected :: MethodCall -> Bool #

Set whether a reply is expected. This can save network and cpu resources by inhibiting unnecessary replies.

Defaults to `True`.

methodCallBody :: MethodCall -> [Variant] #

The arguments to the method call. See `toVariant`.

Defaults to `[]`.

## Method returns

data MethodReturn #

A method return is a reply to a method call, indicating that the call succeeded.

#### Instances

Instances details

Message MethodReturn # |
Instance details Defined in DBus.Internal.Message Methods messageTypeCode :: MethodReturn -> Word8 # messageHeaderFields :: MethodReturn -> [HeaderField] # messageBody :: MethodReturn -> [Variant] # messageFlags :: MethodReturn -> Word8 #
Show MethodReturn # |
Instance details Defined in DBus.Internal.Message Methods showsPrec :: Int -> MethodReturn -> ShowS # show :: MethodReturn -> String # showList :: [MethodReturn] -> ShowS #
Eq MethodReturn # |
Instance details Defined in DBus.Internal.Message Methods (==) :: MethodReturn -> MethodReturn -> Bool # (/=) :: MethodReturn -> MethodReturn -> Bool #

methodReturn :: Serial -> MethodReturn #

Construct a new `MethodReturn`, in reply to a method call with the given serial.

Use fields such as `methodReturnBody` to populate a `MethodReturn`.

methodReturnSerial :: MethodReturn -> Serial #

The serial of the original method call. This lets the original caller match up this reply to the pending call.

methodReturnSender :: MethodReturn -> Maybe BusName #

The name of the application that is returning from a call.

Most users will just leave this empty, because the bus overwrites the sender for security reasons. Setting the sender manually is used for peer-peer connections.

Defaults to `Nothing`.

methodReturnDestination :: MethodReturn -> Maybe BusName #

The name of the application that initiated the call.

Most users should set this. If a message with no destination is sent to the bus, the bus will behave as if the destination was set to `org.freedesktop.DBus`. For peer-peer connections, the destination can be empty because there is only one peer.

Defaults to `Nothing`.

methodReturnBody :: MethodReturn -> [Variant] #

Values returned from the method call. See `toVariant`.

Defaults to `[]`.

## Method errors

data MethodError #

A method error is a reply to a method call, indicating that the call received an error and did not succeed.

#### Instances

Instances details

Message MethodError # |
Instance details Defined in DBus.Internal.Message Methods messageTypeCode :: MethodError -> Word8 # messageHeaderFields :: MethodError -> [HeaderField] # messageBody :: MethodError -> [Variant] # messageFlags :: MethodError -> Word8 #
Show MethodError # |
Instance details Defined in DBus.Internal.Message Methods showsPrec :: Int -> MethodError -> ShowS # show :: MethodError -> String # showList :: [MethodError] -> ShowS #
Eq MethodError # |
Instance details Defined in DBus.Internal.Message Methods (==) :: MethodError -> MethodError -> Bool # (/=) :: MethodError -> MethodError -> Bool #

methodError :: Serial -> ErrorName -> MethodError #

Construct a new `MethodError`, in reply to a method call with the given serial.

Use fields such as `methodErrorBody` to populate a `MethodError`.

methodErrorName :: MethodError -> ErrorName #

The name of the error type. Names are used so clients can handle certain classes of error differently from others.

methodErrorSerial :: MethodError -> Serial #

The serial of the original method call. This lets the original caller match up this reply to the pending call.

methodErrorSender :: MethodError -> Maybe BusName #

The name of the application that is returning from a call.

Most users will just leave this empty, because the bus overwrites the sender for security reasons. Setting the sender manually is used for peer-peer connections.

Defaults to `Nothing`.

methodErrorDestination :: MethodError -> Maybe BusName #

The name of the application that initiated the call.

Most users should set this. If a message with no destination is sent to the bus, the bus will behave as if the destination was set to `org.freedesktop.DBus`. For peer-peer connections, the destination can be empty because there is only one peer.

Defaults to `Nothing`.

methodErrorBody :: MethodError -> [Variant] #

Additional information about the error. By convention, if the error body contains any items, the first item should be a string describing the error.

methodErrorMessage :: MethodError -> String #

Get a human-readable description of the error, by returning the first item in the error body if it's a string.

## Signals

data Signal #

Signals are broadcast by applications to notify other clients of some event.

#### Instances

Instances details

Message Signal # |
Instance details Defined in DBus.Internal.Message Methods messageTypeCode :: Signal -> Word8 # messageHeaderFields :: Signal -> [HeaderField] # messageBody :: Signal -> [Variant] # messageFlags :: Signal -> Word8 #
Show Signal # |
Instance details Defined in DBus.Internal.Message Methods showsPrec :: Int -> Signal -> ShowS # show :: Signal -> String # showList :: [Signal] -> ShowS #
Eq Signal # |
Instance details Defined in DBus.Internal.Message Methods (==) :: Signal -> Signal -> Bool # (/=) :: Signal -> Signal -> Bool #

signal :: ObjectPath -> InterfaceName -> MemberName -> Signal #

Construct a new `Signal` for the given object, interface, and signal name.

Use fields such as `signalBody` to populate a `Signal`.

signalPath :: Signal -> ObjectPath #

The path of the object that emitted this signal.

signalMember :: Signal -> MemberName #

The name of this signal.

signalInterface :: Signal -> InterfaceName #

The interface that this signal belongs to.

signalSender :: Signal -> Maybe BusName #

The name of the application that emitted this signal.

Most users will just leave this empty, because the bus overwrites the sender for security reasons. Setting the sender manually is used for peer-peer connections.

Defaults to `Nothing`.

signalDestination :: Signal -> Maybe BusName #

The name of the application to emit the signal to. If `Nothing`, the signal is sent to any application that has registered an appropriate match rule.

Defaults to `Nothing`.

signalBody :: Signal -> [Variant] #

Additional information about the signal, such as the new value or the time.

Defaults to `[]`.

## Received messages

data ReceivedMessage #

Not an actual message type, but a wrapper around messages received from the bus. Each value contains the message's `Serial`.

If casing against these constructors, always include a default case to handle messages of an unknown type. New message types may be added to the D-Bus specification, and applications should handle them gracefully by either ignoring or logging them.

Constructors

ReceivedMethodCall Serial MethodCall |
ReceivedMethodReturn Serial MethodReturn |
ReceivedMethodError Serial MethodError |
ReceivedSignal Serial Signal |

#### Instances

Instances details

Show ReceivedMessage # |
Instance details Defined in DBus.Internal.Message Methods showsPrec :: Int -> ReceivedMessage -> ShowS # show :: ReceivedMessage -> String # showList :: [ReceivedMessage] -> ShowS #
Eq ReceivedMessage # |
Instance details Defined in DBus.Internal.Message Methods (==) :: ReceivedMessage -> ReceivedMessage -> Bool # (/=) :: ReceivedMessage -> ReceivedMessage -> Bool #

receivedMessageSerial :: ReceivedMessage -> Serial #

No matter what sort of message was received, get its serial.

receivedMessageSender :: ReceivedMessage -> Maybe BusName #

No matter what sort of message was received, get its sender (if provided).

receivedMessageBody :: ReceivedMessage -> [Variant] #

No matter what sort of message was received, get its body (if provided).

# Variants

data Variant #

Variants may contain any other built-in D-Bus value. Besides representing native `VARIANT` values, they allow type-safe storage and inspection of D-Bus collections.

#### Instances

Instances details

IsValue Variant # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Variant -> Type # toValue :: Variant -> Value # fromValue :: Value -> Maybe Variant #
IsVariant Variant # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Variant -> Variant # fromVariant :: Variant -> Maybe Variant #
Show Variant # |
Instance details Defined in DBus.Internal.Types Methods showsPrec :: Int -> Variant -> ShowS # show :: Variant -> String # showList :: [Variant] -> ShowS #
Eq Variant # |
Instance details Defined in DBus.Internal.Types Methods (==) :: Variant -> Variant -> Bool # (/=) :: Variant -> Variant -> Bool #

class IsVariant a where #

Methods

toVariant :: a -> Variant #

fromVariant :: Variant -> Maybe a #

#### Instances

Instances details

IsVariant ByteString # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: ByteString -> Variant # fromVariant :: Variant -> Maybe ByteString #
IsVariant ByteString # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: ByteString -> Variant # fromVariant :: Variant -> Maybe ByteString #
IsVariant Array # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Array -> Variant # fromVariant :: Variant -> Maybe Array #
IsVariant BusName # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: BusName -> Variant # fromVariant :: Variant -> Maybe BusName #
IsVariant Dictionary # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Dictionary -> Variant # fromVariant :: Variant -> Maybe Dictionary #
IsVariant ErrorName # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: ErrorName -> Variant # fromVariant :: Variant -> Maybe ErrorName #
IsVariant InterfaceName # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: InterfaceName -> Variant # fromVariant :: Variant -> Maybe InterfaceName #
IsVariant MemberName # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: MemberName -> Variant # fromVariant :: Variant -> Maybe MemberName #
IsVariant ObjectPath # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: ObjectPath -> Variant # fromVariant :: Variant -> Maybe ObjectPath #
IsVariant Serial # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Serial -> Variant # fromVariant :: Variant -> Maybe Serial #
IsVariant Signature # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Signature -> Variant # fromVariant :: Variant -> Maybe Signature #
IsVariant Structure # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Structure -> Variant # fromVariant :: Variant -> Maybe Structure #
IsVariant Variant # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Variant -> Variant # fromVariant :: Variant -> Maybe Variant #
IsVariant Int16 # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Int16 -> Variant # fromVariant :: Variant -> Maybe Int16 #
IsVariant Int32 # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Int32 -> Variant # fromVariant :: Variant -> Maybe Int32 #
IsVariant Int64 # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Int64 -> Variant # fromVariant :: Variant -> Maybe Int64 #
IsVariant Fd # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Fd -> Variant # fromVariant :: Variant -> Maybe Fd #
IsVariant Word16 # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Word16 -> Variant # fromVariant :: Variant -> Maybe Word16 #
IsVariant Word32 # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Word32 -> Variant # fromVariant :: Variant -> Maybe Word32 #
IsVariant Word64 # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Word64 -> Variant # fromVariant :: Variant -> Maybe Word64 #
IsVariant Word8 # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Word8 -> Variant # fromVariant :: Variant -> Maybe Word8 #
IsVariant Text # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Text -> Variant # fromVariant :: Variant -> Maybe Text #
IsVariant Text # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Text -> Variant # fromVariant :: Variant -> Maybe Text #
IsVariant String # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: String -> Variant # fromVariant :: Variant -> Maybe String #
IsVariant () # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: () -> Variant # fromVariant :: Variant -> Maybe () #
IsVariant Bool # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Bool -> Variant # fromVariant :: Variant -> Maybe Bool #
IsVariant Double # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Double -> Variant # fromVariant :: Variant -> Maybe Double #
IsValue a => IsVariant (Vector a) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Vector a -> Variant # fromVariant :: Variant -> Maybe (Vector a) #
IsValue a => IsVariant [a] # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: [a] -> Variant # fromVariant :: Variant -> Maybe [a] #
(Ord k, IsAtom k, IsValue v) => IsVariant (Map k v) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Map k v -> Variant # fromVariant :: Variant -> Maybe (Map k v) #
(IsVariant a1, IsVariant a2) => IsVariant (a1, a2) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: (a1, a2) -> Variant # fromVariant :: Variant -> Maybe (a1, a2) #
(IsVariant a1, IsVariant a2, IsVariant a3) => IsVariant (a1, a2, a3) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: (a1, a2, a3) -> Variant # fromVariant :: Variant -> Maybe (a1, a2, a3) #
(IsVariant a1, IsVariant a2, IsVariant a3, IsVariant a4) => IsVariant (a1, a2, a3, a4) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: (a1, a2, a3, a4) -> Variant # fromVariant :: Variant -> Maybe (a1, a2, a3, a4) #
(IsVariant a1, IsVariant a2, IsVariant a3, IsVariant a4, IsVariant a5) => IsVariant (a1, a2, a3, a4, a5) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: (a1, a2, a3, a4, a5) -> Variant # fromVariant :: Variant -> Maybe (a1, a2, a3, a4, a5) #
(IsVariant a1, IsVariant a2, IsVariant a3, IsVariant a4, IsVariant a5, IsVariant a6) => IsVariant (a1, a2, a3, a4, a5, a6) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: (a1, a2, a3, a4, a5, a6) -> Variant # fromVariant :: Variant -> Maybe (a1, a2, a3, a4, a5, a6) #
(IsVariant a1, IsVariant a2, IsVariant a3, IsVariant a4, IsVariant a5, IsVariant a6, IsVariant a7) => IsVariant (a1, a2, a3, a4, a5, a6, a7) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: (a1, a2, a3, a4, a5, a6, a7) -> Variant # fromVariant :: Variant -> Maybe (a1, a2, a3, a4, a5, a6, a7) #
(IsVariant a1, IsVariant a2, IsVariant a3, IsVariant a4, IsVariant a5, IsVariant a6, IsVariant a7, IsVariant a8) => IsVariant (a1, a2, a3, a4, a5, a6, a7, a8) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: (a1, a2, a3, a4, a5, a6, a7, a8) -> Variant # fromVariant :: Variant -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8) #
(IsVariant a1, IsVariant a2, IsVariant a3, IsVariant a4, IsVariant a5, IsVariant a6, IsVariant a7, IsVariant a8, IsVariant a9) => IsVariant (a1, a2, a3, a4, a5, a6, a7, a8, a9) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: (a1, a2, a3, a4, a5, a6, a7, a8, a9) -> Variant # fromVariant :: Variant -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8, a9) #
(IsVariant a1, IsVariant a2, IsVariant a3, IsVariant a4, IsVariant a5, IsVariant a6, IsVariant a7, IsVariant a8, IsVariant a9, IsVariant a10) => IsVariant (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) -> Variant # fromVariant :: Variant -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) #
(IsVariant a1, IsVariant a2, IsVariant a3, IsVariant a4, IsVariant a5, IsVariant a6, IsVariant a7, IsVariant a8, IsVariant a9, IsVariant a10, IsVariant a11) => IsVariant (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) -> Variant # fromVariant :: Variant -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) #
(IsVariant a1, IsVariant a2, IsVariant a3, IsVariant a4, IsVariant a5, IsVariant a6, IsVariant a7, IsVariant a8, IsVariant a9, IsVariant a10, IsVariant a11, IsVariant a12) => IsVariant (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) -> Variant # fromVariant :: Variant -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) #
(IsVariant a1, IsVariant a2, IsVariant a3, IsVariant a4, IsVariant a5, IsVariant a6, IsVariant a7, IsVariant a8, IsVariant a9, IsVariant a10, IsVariant a11, IsVariant a12, IsVariant a13) => IsVariant (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) -> Variant # fromVariant :: Variant -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) #
(IsVariant a1, IsVariant a2, IsVariant a3, IsVariant a4, IsVariant a5, IsVariant a6, IsVariant a7, IsVariant a8, IsVariant a9, IsVariant a10, IsVariant a11, IsVariant a12, IsVariant a13, IsVariant a14) => IsVariant (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14) -> Variant # fromVariant :: Variant -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14) #
(IsVariant a1, IsVariant a2, IsVariant a3, IsVariant a4, IsVariant a5, IsVariant a6, IsVariant a7, IsVariant a8, IsVariant a9, IsVariant a10, IsVariant a11, IsVariant a12, IsVariant a13, IsVariant a14, IsVariant a15) => IsVariant (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15) # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15) -> Variant # fromVariant :: Variant -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15) #

variantType :: Variant -> Type #

Every variant is strongly-typed; that is, the type of its contained value is known at all times. This function retrieves that type, so that the correct cast can be used to retrieve the value.

class IsValue a => IsAtom a #

Atomic types can be used as keys to dictionaries.

Users may not provide new instances of `IsAtom` because this could allow dictionaries to be created with invalid keys.

Minimal complete definition

toAtom, fromAtom

#### Instances

Instances details

IsAtom ObjectPath # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: ObjectPath -> Atom # fromAtom :: Atom -> Maybe ObjectPath #
IsAtom Signature # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: Signature -> Atom # fromAtom :: Atom -> Maybe Signature #
IsAtom Int16 # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: Int16 -> Atom # fromAtom :: Atom -> Maybe Int16 #
IsAtom Int32 # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: Int32 -> Atom # fromAtom :: Atom -> Maybe Int32 #
IsAtom Int64 # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: Int64 -> Atom # fromAtom :: Atom -> Maybe Int64 #
IsAtom Fd # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: Fd -> Atom # fromAtom :: Atom -> Maybe Fd #
IsAtom Word16 # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: Word16 -> Atom # fromAtom :: Atom -> Maybe Word16 #
IsAtom Word32 # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: Word32 -> Atom # fromAtom :: Atom -> Maybe Word32 #
IsAtom Word64 # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: Word64 -> Atom # fromAtom :: Atom -> Maybe Word64 #
IsAtom Word8 # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: Word8 -> Atom # fromAtom :: Atom -> Maybe Word8 #
IsAtom Text # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: Text -> Atom # fromAtom :: Atom -> Maybe Text #
IsAtom Text # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: Text -> Atom # fromAtom :: Atom -> Maybe Text #
IsAtom String # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: String -> Atom # fromAtom :: Atom -> Maybe String #
IsAtom Bool # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: Bool -> Atom # fromAtom :: Atom -> Maybe Bool #
IsAtom Double # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: Double -> Atom # fromAtom :: Atom -> Maybe Double #

class IsVariant a => IsValue a #

Value types can be used as items in containers, such as lists or dictionaries.

Users may not provide new instances of `IsValue` because this could allow containers to be created with items of heterogenous types.

Minimal complete definition

typeOf_, toValue, fromValue

#### Instances

Instances details

IsValue ByteString # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy ByteString -> Type # toValue :: ByteString -> Value # fromValue :: Value -> Maybe ByteString #
IsValue ByteString # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy ByteString -> Type # toValue :: ByteString -> Value # fromValue :: Value -> Maybe ByteString #
IsValue ObjectPath # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy ObjectPath -> Type # toValue :: ObjectPath -> Value # fromValue :: Value -> Maybe ObjectPath #
IsValue Signature # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Signature -> Type # toValue :: Signature -> Value # fromValue :: Value -> Maybe Signature #
IsValue Variant # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Variant -> Type # toValue :: Variant -> Value # fromValue :: Value -> Maybe Variant #
IsValue Int16 # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Int16 -> Type # toValue :: Int16 -> Value # fromValue :: Value -> Maybe Int16 #
IsValue Int32 # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Int32 -> Type # toValue :: Int32 -> Value # fromValue :: Value -> Maybe Int32 #
IsValue Int64 # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Int64 -> Type # toValue :: Int64 -> Value # fromValue :: Value -> Maybe Int64 #
IsValue Fd # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Fd -> Type # toValue :: Fd -> Value # fromValue :: Value -> Maybe Fd #
IsValue Word16 # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Word16 -> Type # toValue :: Word16 -> Value # fromValue :: Value -> Maybe Word16 #
IsValue Word32 # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Word32 -> Type # toValue :: Word32 -> Value # fromValue :: Value -> Maybe Word32 #
IsValue Word64 # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Word64 -> Type # toValue :: Word64 -> Value # fromValue :: Value -> Maybe Word64 #
IsValue Word8 # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Word8 -> Type # toValue :: Word8 -> Value # fromValue :: Value -> Maybe Word8 #
IsValue Text # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Text -> Type # toValue :: Text -> Value # fromValue :: Value -> Maybe Text #
IsValue Text # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Text -> Type # toValue :: Text -> Value # fromValue :: Value -> Maybe Text #
IsValue String # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy String -> Type # toValue :: String -> Value # fromValue :: Value -> Maybe String #
IsValue () # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy () -> Type # toValue :: () -> Value # fromValue :: Value -> Maybe () #
IsValue Bool # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Bool -> Type # toValue :: Bool -> Value # fromValue :: Value -> Maybe Bool #
IsValue Double # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Double -> Type # toValue :: Double -> Value # fromValue :: Value -> Maybe Double #
IsValue a => IsValue (Vector a) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (Vector a) -> Type # toValue :: Vector a -> Value # fromValue :: Value -> Maybe (Vector a) #
IsValue a => IsValue [a] # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy [a] -> Type # toValue :: [a] -> Value # fromValue :: Value -> Maybe [a] #
(Ord k, IsAtom k, IsValue v) => IsValue (Map k v) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (Map k v) -> Type # toValue :: Map k v -> Value # fromValue :: Value -> Maybe (Map k v) #
(IsValue a1, IsValue a2) => IsValue (a1, a2) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (a1, a2) -> Type # toValue :: (a1, a2) -> Value # fromValue :: Value -> Maybe (a1, a2) #
(IsValue a1, IsValue a2, IsValue a3) => IsValue (a1, a2, a3) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (a1, a2, a3) -> Type # toValue :: (a1, a2, a3) -> Value # fromValue :: Value -> Maybe (a1, a2, a3) #
(IsValue a1, IsValue a2, IsValue a3, IsValue a4) => IsValue (a1, a2, a3, a4) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (a1, a2, a3, a4) -> Type # toValue :: (a1, a2, a3, a4) -> Value # fromValue :: Value -> Maybe (a1, a2, a3, a4) #
(IsValue a1, IsValue a2, IsValue a3, IsValue a4, IsValue a5) => IsValue (a1, a2, a3, a4, a5) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (a1, a2, a3, a4, a5) -> Type # toValue :: (a1, a2, a3, a4, a5) -> Value # fromValue :: Value -> Maybe (a1, a2, a3, a4, a5) #
(IsValue a1, IsValue a2, IsValue a3, IsValue a4, IsValue a5, IsValue a6) => IsValue (a1, a2, a3, a4, a5, a6) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (a1, a2, a3, a4, a5, a6) -> Type # toValue :: (a1, a2, a3, a4, a5, a6) -> Value # fromValue :: Value -> Maybe (a1, a2, a3, a4, a5, a6) #
(IsValue a1, IsValue a2, IsValue a3, IsValue a4, IsValue a5, IsValue a6, IsValue a7) => IsValue (a1, a2, a3, a4, a5, a6, a7) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (a1, a2, a3, a4, a5, a6, a7) -> Type # toValue :: (a1, a2, a3, a4, a5, a6, a7) -> Value # fromValue :: Value -> Maybe (a1, a2, a3, a4, a5, a6, a7) #
(IsValue a1, IsValue a2, IsValue a3, IsValue a4, IsValue a5, IsValue a6, IsValue a7, IsValue a8) => IsValue (a1, a2, a3, a4, a5, a6, a7, a8) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (a1, a2, a3, a4, a5, a6, a7, a8) -> Type # toValue :: (a1, a2, a3, a4, a5, a6, a7, a8) -> Value # fromValue :: Value -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8) #
(IsValue a1, IsValue a2, IsValue a3, IsValue a4, IsValue a5, IsValue a6, IsValue a7, IsValue a8, IsValue a9) => IsValue (a1, a2, a3, a4, a5, a6, a7, a8, a9) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (a1, a2, a3, a4, a5, a6, a7, a8, a9) -> Type # toValue :: (a1, a2, a3, a4, a5, a6, a7, a8, a9) -> Value # fromValue :: Value -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8, a9) #
(IsValue a1, IsValue a2, IsValue a3, IsValue a4, IsValue a5, IsValue a6, IsValue a7, IsValue a8, IsValue a9, IsValue a10) => IsValue (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) -> Type # toValue :: (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) -> Value # fromValue :: Value -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) #
(IsValue a1, IsValue a2, IsValue a3, IsValue a4, IsValue a5, IsValue a6, IsValue a7, IsValue a8, IsValue a9, IsValue a10, IsValue a11) => IsValue (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) -> Type # toValue :: (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) -> Value # fromValue :: Value -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) #
(IsValue a1, IsValue a2, IsValue a3, IsValue a4, IsValue a5, IsValue a6, IsValue a7, IsValue a8, IsValue a9, IsValue a10, IsValue a11, IsValue a12) => IsValue (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) -> Type # toValue :: (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) -> Value # fromValue :: Value -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) #
(IsValue a1, IsValue a2, IsValue a3, IsValue a4, IsValue a5, IsValue a6, IsValue a7, IsValue a8, IsValue a9, IsValue a10, IsValue a11, IsValue a12, IsValue a13) => IsValue (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) -> Type # toValue :: (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) -> Value # fromValue :: Value -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) #
(IsValue a1, IsValue a2, IsValue a3, IsValue a4, IsValue a5, IsValue a6, IsValue a7, IsValue a8, IsValue a9, IsValue a10, IsValue a11, IsValue a12, IsValue a13, IsValue a14) => IsValue (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14) -> Type # toValue :: (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14) -> Value # fromValue :: Value -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14) #
(IsValue a1, IsValue a2, IsValue a3, IsValue a4, IsValue a5, IsValue a6, IsValue a7, IsValue a8, IsValue a9, IsValue a10, IsValue a11, IsValue a12, IsValue a13, IsValue a14, IsValue a15) => IsValue (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15) # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15) -> Type # toValue :: (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15) -> Value # fromValue :: Value -> Maybe (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15) #

typeOf :: IsValue a => a -> Type #

Deprecated. Get the D-Bus type corresponding to the given Haskell value. The value may be `undefined`.

typeOf' :: IsValue a => Proxy a -> Type #

Get the D-Bus type corresponding to the given Haskell type `a`.

# Signatures

data Signature #

A signature is a list of D-Bus types, obeying some basic rules of validity.

The rules of signature validity are complex: see http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-signatures for details.

#### Instances

Instances details

IsAtom Signature # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: Signature -> Atom # fromAtom :: Atom -> Maybe Signature #
IsValue Signature # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy Signature -> Type # toValue :: Signature -> Value # fromValue :: Value -> Maybe Signature #
IsVariant Signature # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Signature -> Variant # fromVariant :: Variant -> Maybe Signature #
NFData Signature # |
Instance details Defined in DBus.Internal.Types Methods rnf :: Signature -> () #
IsString Signature # |
Instance details Defined in DBus.Internal.Types Methods fromString :: String -> Signature #
Show Signature # |
Instance details Defined in DBus.Internal.Types Methods showsPrec :: Int -> Signature -> ShowS # show :: Signature -> String # showList :: [Signature] -> ShowS #
Eq Signature # |
Instance details Defined in DBus.Internal.Types Methods (==) :: Signature -> Signature -> Bool # (/=) :: Signature -> Signature -> Bool #
Ord Signature # |
Instance details Defined in DBus.Internal.Types Methods compare :: Signature -> Signature -> Ordering # (<) :: Signature -> Signature -> Bool # (<=) :: Signature -> Signature -> Bool # (>) :: Signature -> Signature -> Bool # (>=) :: Signature -> Signature -> Bool # max :: Signature -> Signature -> Signature # min :: Signature -> Signature -> Signature #

data Type #

Constructors

TypeBoolean |
TypeWord8 |
TypeWord16 |
TypeWord32 |
TypeWord64 |
TypeInt16 |
TypeInt32 |
TypeInt64 |
TypeDouble |
TypeUnixFd |
TypeString |
TypeSignature |
TypeObjectPath |
TypeVariant |
TypeArray Type |
TypeDictionary Type Type |
TypeStructure [Type] |

#### Instances

Instances details

NFData Type # |
Instance details Defined in DBus.Internal.Types Methods rnf :: Type -> () #
Generic Type # |
Instance details Defined in DBus.Internal.Types Associated Types
type Rep Type |
Instance details Defined in DBus.Internal.Types type Rep Type = D1 ('MetaData "Type" "DBus.Internal.Types" "dbus-1.3.11-HtdmZsU2WWi3zWEUaxClgd" 'False) ((((C1 ('MetaCons "TypeBoolean" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "TypeWord8" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "TypeWord16" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "TypeWord32" 'PrefixI 'False) (U1 :: Type -> Type))) :+: ((C1 ('MetaCons "TypeWord64" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "TypeInt16" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "TypeInt32" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "TypeInt64" 'PrefixI 'False) (U1 :: Type -> Type)))) :+: (((C1 ('MetaCons "TypeDouble" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "TypeUnixFd" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "TypeString" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "TypeSignature" 'PrefixI 'False) (U1 :: Type -> Type))) :+: ((C1 ('MetaCons "TypeObjectPath" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "TypeVariant" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "TypeArray" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Type)) :+: (C1 ('MetaCons "TypeDictionary" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Type) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Type)) :+: C1 ('MetaCons "TypeStructure" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [Type])))))))
Methods from :: Type -> Rep Type x # to :: Rep Type x -> Type #
Show Type # |
Instance details Defined in DBus.Internal.Types Methods showsPrec :: Int -> Type -> ShowS # show :: Type -> String # showList :: [Type] -> ShowS #
Eq Type # |
Instance details Defined in DBus.Internal.Types Methods (==) :: Type -> Type -> Bool # (/=) :: Type -> Type -> Bool #
Ord Type # |
Instance details Defined in DBus.Internal.Types Methods compare :: Type -> Type -> Ordering # (<) :: Type -> Type -> Bool # (<=) :: Type -> Type -> Bool # (>) :: Type -> Type -> Bool # (>=) :: Type -> Type -> Bool # max :: Type -> Type -> Type # min :: Type -> Type -> Type #
type Rep Type # |
Instance details Defined in DBus.Internal.Types type Rep Type = D1 ('MetaData "Type" "DBus.Internal.Types" "dbus-1.3.11-HtdmZsU2WWi3zWEUaxClgd" 'False) ((((C1 ('MetaCons "TypeBoolean" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "TypeWord8" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "TypeWord16" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "TypeWord32" 'PrefixI 'False) (U1 :: Type -> Type))) :+: ((C1 ('MetaCons "TypeWord64" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "TypeInt16" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "TypeInt32" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "TypeInt64" 'PrefixI 'False) (U1 :: Type -> Type)))) :+: (((C1 ('MetaCons "TypeDouble" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "TypeUnixFd" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "TypeString" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "TypeSignature" 'PrefixI 'False) (U1 :: Type -> Type))) :+: ((C1 ('MetaCons "TypeObjectPath" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "TypeVariant" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "TypeArray" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Type)) :+: (C1 ('MetaCons "TypeDictionary" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Type) :*: S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Type)) :+: C1 ('MetaCons "TypeStructure" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [Type])))))))

signature :: MonadThrow m => [Type] -> m Signature #

Convert a list of types into a valid signature.

Throws if the given types are not a valid signature.

signature_ :: [Type] -> Signature #

Convert a list of types into a valid signature.

Throws an exception if the given types are not a valid signature.

signatureTypes :: Signature -> [Type] #

Get the list of types in a signature. The inverse of `signature`.

formatSignature :: Signature -> String #

Convert a signature into a signature string. The inverse of `parseSignature`.

parseSignature :: MonadThrow m => String -> m Signature #

Parse a signature string into a valid signature.

Throws if the given string is not a valid signature.

# Object paths

data ObjectPath #

Object paths are special strings, used to identify a particular object exported from a D-Bus application.

Object paths must begin with a slash, and consist of alphanumeric characters separated by slashes.

See http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-marshaling-object-path for details.

#### Instances

Instances details

IsAtom ObjectPath # |
Instance details Defined in DBus.Internal.Types Methods toAtom :: ObjectPath -> Atom # fromAtom :: Atom -> Maybe ObjectPath #
IsValue ObjectPath # |
Instance details Defined in DBus.Internal.Types Methods typeOf_ :: Proxy ObjectPath -> Type # toValue :: ObjectPath -> Value # fromValue :: Value -> Maybe ObjectPath #
IsVariant ObjectPath # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: ObjectPath -> Variant # fromVariant :: Variant -> Maybe ObjectPath #
NFData ObjectPath # |
Instance details Defined in DBus.Internal.Types Methods rnf :: ObjectPath -> () #
IsString ObjectPath # |
Instance details Defined in DBus.Internal.Types Methods fromString :: String -> ObjectPath #
Show ObjectPath # |
Instance details Defined in DBus.Internal.Types Methods showsPrec :: Int -> ObjectPath -> ShowS # show :: ObjectPath -> String # showList :: [ObjectPath] -> ShowS #
Eq ObjectPath # |
Instance details Defined in DBus.Internal.Types Methods (==) :: ObjectPath -> ObjectPath -> Bool # (/=) :: ObjectPath -> ObjectPath -> Bool #
Ord ObjectPath # |
Instance details Defined in DBus.Internal.Types Methods compare :: ObjectPath -> ObjectPath -> Ordering # (<) :: ObjectPath -> ObjectPath -> Bool # (<=) :: ObjectPath -> ObjectPath -> Bool # (>) :: ObjectPath -> ObjectPath -> Bool # (>=) :: ObjectPath -> ObjectPath -> Bool # max :: ObjectPath -> ObjectPath -> ObjectPath # min :: ObjectPath -> ObjectPath -> ObjectPath #
Lift ObjectPath # |
Instance details Defined in DBus.Internal.Types Methods lift :: Quote m => ObjectPath -> m Exp # liftTyped :: forall (m :: Type -> Type). Quote m => ObjectPath -> Code m ObjectPath #

objectPath_ :: String -> ObjectPath #

formatObjectPath :: ObjectPath -> String #

parseObjectPath :: MonadThrow m => String -> m ObjectPath #

# Names

## Interface names

data InterfaceName #

Interfaces are used to group a set of methods and signals within an exported object. Interface names consist of alphanumeric characters separated by periods.

See http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-interface for details.

#### Instances

Instances details

IsVariant InterfaceName # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: InterfaceName -> Variant # fromVariant :: Variant -> Maybe InterfaceName #
NFData InterfaceName # |
Instance details Defined in DBus.Internal.Types Methods rnf :: InterfaceName -> () #
IsString InterfaceName # |
Instance details Defined in DBus.Internal.Types Methods fromString :: String -> InterfaceName #
Show InterfaceName # |
Instance details Defined in DBus.Internal.Types Methods showsPrec :: Int -> InterfaceName -> ShowS # show :: InterfaceName -> String # showList :: [InterfaceName] -> ShowS #
Eq InterfaceName # |
Instance details Defined in DBus.Internal.Types Methods (==) :: InterfaceName -> InterfaceName -> Bool # (/=) :: InterfaceName -> InterfaceName -> Bool #
Ord InterfaceName # |
Instance details Defined in DBus.Internal.Types Methods compare :: InterfaceName -> InterfaceName -> Ordering # (<) :: InterfaceName -> InterfaceName -> Bool # (<=) :: InterfaceName -> InterfaceName -> Bool # (>) :: InterfaceName -> InterfaceName -> Bool # (>=) :: InterfaceName -> InterfaceName -> Bool # max :: InterfaceName -> InterfaceName -> InterfaceName # min :: InterfaceName -> InterfaceName -> InterfaceName #
Lift InterfaceName # |
Instance details Defined in DBus.Internal.Types Methods lift :: Quote m => InterfaceName -> m Exp # liftTyped :: forall (m :: Type -> Type). Quote m => InterfaceName -> Code m InterfaceName #

interfaceName_ :: String -> InterfaceName #

formatInterfaceName :: InterfaceName -> String #

parseInterfaceName :: MonadThrow m => String -> m InterfaceName #

## Member names

data MemberName #

Member names are used to identify a single method or signal within an interface. Method names consist of alphanumeric characters.

See http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-member for details.

#### Instances

Instances details

IsVariant MemberName # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: MemberName -> Variant # fromVariant :: Variant -> Maybe MemberName #
NFData MemberName # |
Instance details Defined in DBus.Internal.Types Methods rnf :: MemberName -> () #
IsString MemberName # |
Instance details Defined in DBus.Internal.Types Methods fromString :: String -> MemberName #
Show MemberName # |
Instance details Defined in DBus.Internal.Types Methods showsPrec :: Int -> MemberName -> ShowS # show :: MemberName -> String # showList :: [MemberName] -> ShowS #
Eq MemberName # |
Instance details Defined in DBus.Internal.Types Methods (==) :: MemberName -> MemberName -> Bool # (/=) :: MemberName -> MemberName -> Bool #
Ord MemberName # |
Instance details Defined in DBus.Internal.Types Methods compare :: MemberName -> MemberName -> Ordering # (<) :: MemberName -> MemberName -> Bool # (<=) :: MemberName -> MemberName -> Bool # (>) :: MemberName -> MemberName -> Bool # (>=) :: MemberName -> MemberName -> Bool # max :: MemberName -> MemberName -> MemberName # min :: MemberName -> MemberName -> MemberName #
Lift MemberName # |
Instance details Defined in DBus.Internal.Types Methods lift :: Quote m => MemberName -> m Exp # liftTyped :: forall (m :: Type -> Type). Quote m => MemberName -> Code m MemberName #

memberName_ :: String -> MemberName #

formatMemberName :: MemberName -> String #

parseMemberName :: MonadThrow m => String -> m MemberName #

## Error names

data ErrorName #

Error names are used to identify which type of error was returned from a method call. Error names consist of alphanumeric characters separated by periods.

See http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-error for details.

#### Instances

Instances details

IsVariant ErrorName # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: ErrorName -> Variant # fromVariant :: Variant -> Maybe ErrorName #
NFData ErrorName # |
Instance details Defined in DBus.Internal.Types Methods rnf :: ErrorName -> () #
IsString ErrorName # |
Instance details Defined in DBus.Internal.Types Methods fromString :: String -> ErrorName #
Show ErrorName # |
Instance details Defined in DBus.Internal.Types Methods showsPrec :: Int -> ErrorName -> ShowS # show :: ErrorName -> String # showList :: [ErrorName] -> ShowS #
Eq ErrorName # |
Instance details Defined in DBus.Internal.Types Methods (==) :: ErrorName -> ErrorName -> Bool # (/=) :: ErrorName -> ErrorName -> Bool #
Ord ErrorName # |
Instance details Defined in DBus.Internal.Types Methods compare :: ErrorName -> ErrorName -> Ordering # (<) :: ErrorName -> ErrorName -> Bool # (<=) :: ErrorName -> ErrorName -> Bool # (>) :: ErrorName -> ErrorName -> Bool # (>=) :: ErrorName -> ErrorName -> Bool # max :: ErrorName -> ErrorName -> ErrorName # min :: ErrorName -> ErrorName -> ErrorName #

errorName_ :: String -> ErrorName #

formatErrorName :: ErrorName -> String #

parseErrorName :: MonadThrow m => String -> m ErrorName #

## Bus names

data BusName #

Bus names are used to identify particular clients on the message bus. A bus name may be either unique or well-known, where unique names start with a colon. Bus names consist of alphanumeric characters separated by periods.

See http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-bus for details.

#### Instances

Instances details

IsVariant BusName # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: BusName -> Variant # fromVariant :: Variant -> Maybe BusName #
NFData BusName # |
Instance details Defined in DBus.Internal.Types Methods rnf :: BusName -> () #
IsString BusName # |
Instance details Defined in DBus.Internal.Types Methods fromString :: String -> BusName #
Show BusName # |
Instance details Defined in DBus.Internal.Types Methods showsPrec :: Int -> BusName -> ShowS # show :: BusName -> String # showList :: [BusName] -> ShowS #
Eq BusName # |
Instance details Defined in DBus.Internal.Types Methods (==) :: BusName -> BusName -> Bool # (/=) :: BusName -> BusName -> Bool #
Ord BusName # |
Instance details Defined in DBus.Internal.Types Methods compare :: BusName -> BusName -> Ordering # (<) :: BusName -> BusName -> Bool # (<=) :: BusName -> BusName -> Bool # (>) :: BusName -> BusName -> Bool # (>=) :: BusName -> BusName -> Bool # max :: BusName -> BusName -> BusName # min :: BusName -> BusName -> BusName #
Lift BusName # |
Instance details Defined in DBus.Internal.Types Methods lift :: Quote m => BusName -> m Exp # liftTyped :: forall (m :: Type -> Type). Quote m => BusName -> Code m BusName #

busName_ :: String -> BusName #

formatBusName :: BusName -> String #

parseBusName :: MonadThrow m => String -> m BusName #

# Non-native containers

## Structures

data Structure #

A D-Bus Structure is a container type similar to Haskell tuples, storing values of any type that is convertable to `IsVariant`. A Structure may contain up to 255 values.

Most users can use the `IsVariant` instance for tuples to extract the values of a structure. This type is for very large structures, which may be awkward to work with as tuples.

#### Instances

Instances details

IsVariant Structure # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Structure -> Variant # fromVariant :: Variant -> Maybe Structure #
Show Structure # |
Instance details Defined in DBus.Internal.Types Methods showsPrec :: Int -> Structure -> ShowS # show :: Structure -> String # showList :: [Structure] -> ShowS #
Eq Structure # |
Instance details Defined in DBus.Internal.Types Methods (==) :: Structure -> Structure -> Bool # (/=) :: Structure -> Structure -> Bool #

structureItems :: Structure -> [Variant] #

## Arrays

data Array #

A D-Bus Array is a container type similar to Haskell lists, storing zero or more values of a single D-Bus type.

Most users can use the `IsVariant` instance for lists or vectors to extract the values of an array. This type is for advanced use cases, where the user wants to convert array values to Haskell types that are not instances of `IsValue`.

#### Instances

Instances details

IsVariant Array # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Array -> Variant # fromVariant :: Variant -> Maybe Array #
Show Array # |
Instance details Defined in DBus.Internal.Types Methods showsPrec :: Int -> Array -> ShowS # show :: Array -> String # showList :: [Array] -> ShowS #
Eq Array # |
Instance details Defined in DBus.Internal.Types Methods (==) :: Array -> Array -> Bool # (/=) :: Array -> Array -> Bool #

arrayItems :: Array -> [Variant] #

## Dictionaries

data Dictionary #

A D-Bus Dictionary is a container type similar to Haskell maps, storing zero or more associations between keys and values.

Most users can use the `IsVariant` instance for maps to extract the values of a dictionary. This type is for advanced use cases, where the user wants to convert dictionary items to Haskell types that are not instances of `IsValue`.

#### Instances

Instances details

IsVariant Dictionary # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Dictionary -> Variant # fromVariant :: Variant -> Maybe Dictionary #
Show Dictionary # |
Instance details Defined in DBus.Internal.Types Methods showsPrec :: Int -> Dictionary -> ShowS # show :: Dictionary -> String # showList :: [Dictionary] -> ShowS #
Eq Dictionary # |
Instance details Defined in DBus.Internal.Types Methods (==) :: Dictionary -> Dictionary -> Bool # (/=) :: Dictionary -> Dictionary -> Bool #

dictionaryItems :: Dictionary -> [(Variant, Variant)] #

# Addresses

data Address #

When a D-Bus server must listen for connections, or a client must connect to a server, the listening socket's configuration is specified with an address. An address contains the method, which determines the protocol and transport mechanism, and parameters, which provide additional method-specific information about the address.

#### Instances

Instances details

Show Address # |
Instance details Defined in DBus.Internal.Address Methods showsPrec :: Int -> Address -> ShowS # show :: Address -> String # showList :: [Address] -> ShowS #
Eq Address # |
Instance details Defined in DBus.Internal.Address Methods (==) :: Address -> Address -> Bool # (/=) :: Address -> Address -> Bool #

addressMethod :: Address -> String #

addressParameters :: Address -> Map String String #

address :: String -> Map String String -> Maybe Address #

Try to convert a method string and parameter map to an `Address`.

Returns `Nothing` if the method or parameters are invalid.

formatAddress :: Address -> String #

Convert an address to a string in the format expected by `parseAddress`.

formatAddresses :: [Address] -> String #

Convert a list of addresses to a string in the format expected by `parseAddresses`.

parseAddress :: String -> Maybe Address #

Try to parse a string containing one valid address.

An address string is in the format `method:key1=val1,key2=val2`. There are some limitations on the characters allowed within methods and parameters; see the D-Bus specification for full details.

parseAddresses :: String -> Maybe [Address] #

Try to parse a string containing one or more valid addresses.

Addresses are separated by semicolons. See `parseAddress` for the format of addresses.

getSystemAddress :: IO (Maybe Address) #

Returns the address in the environment variable `DBUS_SYSTEM_BUS_ADDRESS`, or `unix:path=/var/run/dbus/system_bus_socket` if `DBUS_SYSTEM_BUS_ADDRESS` is not set.

Returns `Nothing` if `DBUS_SYSTEM_BUS_ADDRESS` contains an invalid address.

getSessionAddress :: IO (Maybe Address) #

Returns the first address in the environment variable `DBUS_SESSION_BUS_ADDRESS`, which must be set.

Returns `Nothing` if `DBUS_SYSTEM_BUS_ADDRESS` contains an invalid address or `DBUS_SESSION_BUS_ADDRESS` is unset `XDG_RUNTIME_DIR` doesn't have `/bus`.

getStarterAddress :: IO (Maybe Address) #

Returns the address in the environment variable `DBUS_STARTER_ADDRESS`, which must be set.

Returns `Nothing` if `DBUS_STARTER_ADDRESS` is unset or contains an invalid address.

# Message marshaling

data Endianness #

Constructors

LittleEndian |
BigEndian |

#### Instances

Instances details

Show Endianness # |
Instance details Defined in DBus.Internal.Wire Methods showsPrec :: Int -> Endianness -> ShowS # show :: Endianness -> String # showList :: [Endianness] -> ShowS #
Eq Endianness # |
Instance details Defined in DBus.Internal.Wire Methods (==) :: Endianness -> Endianness -> Bool # (/=) :: Endianness -> Endianness -> Bool #

## Marshal

marshal :: Message msg => Endianness -> Serial -> msg -> Either MarshalError ByteString #

Convert a `Message` into a `ByteString`. Although unusual, it is possible for marshaling to fail; if this occurs, an error will be returned instead.

marshalWithFds :: Message msg => Endianness -> Serial -> msg -> Either MarshalError (ByteString, [Fd]) #

Convert a `Message` into a `ByteString` along with all `Fd` values mentioned in the message (the marshaled bytes will contain indices into this list). Although unusual, it is possible for marshaling to fail; if this occurs, an error will be returned instead.

data MarshalError #

#### Instances

Instances details

Show MarshalError # |
Instance details Defined in DBus.Internal.Wire Methods showsPrec :: Int -> MarshalError -> ShowS # show :: MarshalError -> String # showList :: [MarshalError] -> ShowS #
Eq MarshalError # |
Instance details Defined in DBus.Internal.Wire Methods (==) :: MarshalError -> MarshalError -> Bool # (/=) :: MarshalError -> MarshalError -> Bool #

marshalErrorMessage :: MarshalError -> String #

## Unmarshal

unmarshal :: ByteString -> Either UnmarshalError ReceivedMessage #

Parse a `ByteString` into a `ReceivedMessage`. The result can be inspected to see what type of message was parsed. Unknown message types can still be parsed successfully, as long as they otherwise conform to the D-Bus standard.

Unmarshaling will fail if the message contains file descriptors. If you need file descriptor support then use `unmarshalWithFds` instead.

unmarshalWithFds :: ByteString -> [Fd] -> Either UnmarshalError ReceivedMessage #

Parse a `ByteString` into a `ReceivedMessage`. The `Fd` values are needed because the marshaled message contains indices into the `Fd` list rather then `Fd` values directly. The result can be inspected to see what type of message was parsed. Unknown message types can still be parsed successfully, as long as they otherwise conform to the D-Bus standard.

data UnmarshalError #

#### Instances

Instances details

Show UnmarshalError # |
Instance details Defined in DBus.Internal.Wire Methods showsPrec :: Int -> UnmarshalError -> ShowS # show :: UnmarshalError -> String # showList :: [UnmarshalError] -> ShowS #
Eq UnmarshalError # |
Instance details Defined in DBus.Internal.Wire Methods (==) :: UnmarshalError -> UnmarshalError -> Bool # (/=) :: UnmarshalError -> UnmarshalError -> Bool #

unmarshalErrorMessage :: UnmarshalError -> String #

## Message serials

data Serial #

A value used to uniquely identify a particular message within a session. Serials are 32-bit unsigned integers, and eventually wrap.

#### Instances

Instances details

IsVariant Serial # |
Instance details Defined in DBus.Internal.Types Methods toVariant :: Serial -> Variant # fromVariant :: Variant -> Maybe Serial #
Show Serial # |
Instance details Defined in DBus.Internal.Types Methods showsPrec :: Int -> Serial -> ShowS # show :: Serial -> String # showList :: [Serial] -> ShowS #
Eq Serial # |
Instance details Defined in DBus.Internal.Types Methods (==) :: Serial -> Serial -> Bool # (/=) :: Serial -> Serial -> Bool #
Ord Serial # |
Instance details Defined in DBus.Internal.Types Methods compare :: Serial -> Serial -> Ordering # (<) :: Serial -> Serial -> Bool # (<=) :: Serial -> Serial -> Bool # (>) :: Serial -> Serial -> Bool # (>=) :: Serial -> Serial -> Bool # max :: Serial -> Serial -> Serial # min :: Serial -> Serial -> Serial #

serialValue :: Serial -> Word32 #

firstSerial :: Serial #

Get the first serial in the sequence.

nextSerial :: Serial -> Serial #

Get the next serial in the sequence. This may wrap around to `firstSerial`.

# D-Bus UUIDs

data UUID #

A D-Bus UUID is 128 bits of data, usually randomly generated. They are used for identifying unique server instances to clients.

Older versions of the D-Bus spec also called these values GUIDs.

D-Bus UUIDs are not the same as the RFC-standardized UUIDs or GUIDs.

#### Instances

Instances details

Show UUID # |
Instance details Defined in DBus Methods showsPrec :: Int -> UUID -> ShowS # show :: UUID -> String # showList :: [UUID] -> ShowS #
Eq UUID # |
Instance details Defined in DBus Methods (==) :: UUID -> UUID -> Bool # (/=) :: UUID -> UUID -> Bool #
Ord UUID # |
Instance details Defined in DBus Methods compare :: UUID -> UUID -> Ordering # (<) :: UUID -> UUID -> Bool # (<=) :: UUID -> UUID -> Bool # (>) :: UUID -> UUID -> Bool # (>=) :: UUID -> UUID -> Bool # max :: UUID -> UUID -> UUID # min :: UUID -> UUID -> UUID #

formatUUID :: UUID -> String #

Format a D-Bus UUID as hex-encoded ASCII.

randomUUID :: IO UUID #

Generate a random D-Bus UUID. This value is suitable for use in a randomly-allocated address, or as a listener's socket address `"guid"` parameter.