Module kernel::registry

Re-exports

• pub use self::listener::Listener;
• pub use self::listener::Registration;

Modules

• known_uuids
  A partial list of known UUIDs of driver services
• listener
  A Listener is used by a RegisteredDriver to accept incoming connections from clients.

Macros

• uuid
  Parse Uuids from string literals at compile time.

Structs

• ClientId
• Envelope
  A wrapper for a message TO and FROM a driver service. Used to be able to add additional message metadata without changing the fundamental message type.
• KernelHandle
  A KernelHandle is used to send typed messages to a kernelspace Driver service.
• Message
  The Message kind represents a full reply/response sequence to a driver service. This is the concrete type received by the driver service.
• OpenEnvelope
• Registry
  The driver registry used by the kernel.
• RegistryItem 🔒
  Right now we don’t use a real HashMap, but rather a hand-rolled index map. Therefore our registry is basically a Vec<RegistryItem>.
• RegistryType
• RegistryValue 🔒
  The payload of a registry item.
• RequestResponseId
• ServiceId
• UserRequest
• UserResponse
• UserVtable 🔒
  A virtual function pointer table (vtable) that specifies how userspace requests are serialized and deserialized.
• UserspaceHandle
  A UserspaceHandle is used to process incoming serialized messages from userspace. It contains a method that can be used to deserialize messages from a given UUID, and send that request (if the deserialization is successful) to a given driver service.
• Uuid
  A Universally Unique Identifier (UUID).

Enums

• ConnectError
  Errors returned by Registry::connect and Registry::try_connect.
• MessageKind
• OneshotRequestError
• RegistrationError
• ReplyError
• ReplyTo
  A ReplyTo is used to allow the CLIENT of a service to choose the way that the driver SERVICE replies to us. Essentially, this acts as a “self addressed stamped envelope” for the SERVICE to use to reply to the CLIENT.
• SendError
• UserConnectError
  Errors returned by Registry::connect_userspace and Registry::try_connect_userspace.
• UserHandlerError

Traits

• RegisteredDriver
  A marker trait designating a registerable driver service.

Functions

• erased_user_handshake 🔒 ^⚠
  Perform a type-erased userspace handshake, deserializing the RegisteredDriver::Hello message from hello_bytes and returning a future that writes the handshake result to the provided outptr, if the future completes successfully.
• map_deser 🔒 ^⚠
  A monomorphizable function that allows us to store the serialization type within the function itself, allowing for a type-erased function pointer to be stored inside of the registry.

Type Aliases

• ErasedHandshake 🔒
• ErasedReqDeser 🔒
• UserHandshakeResult 🔒