# Module actix_web::actix::actix[−]

## Modules

actors | Helper actors
dev | The `actix` prelude for library developers
fut | Custom `Future` implementation with `Actix` support
io |
msgs | Actix system messages

## Structs

ActorResponse | Helper type for representing different type of message responses
Addr | Address of the actor
Arbiter | Event loop controller
Condition |
Context | Actor execution context
MessageResult | Helper type that implements `MessageResponse` trait
Recipient | `Recipient` type allows to send one specific message to an actor.
RecipientRequest | `RecipientRequest` is a `Future` which represents asynchronous message sending process.
Request | `Request` is a `Future` which represents asynchronous message sending process.
Response | Helper type for representing different type of message responses
SpawnHandle | Spawned future handle. Could be used for cancelling spawned future.
Supervisor | Actor supervisor
SyncArbiter | Sync arbiter
SyncContext | Sync actor execution context
System | System is an actor which manages runtime.

## Enums

ActorState | Actor execution state
MailboxError | Set of error that can occurred during message delivery process
Running |
SendError |

## Traits

Actor | Actors are objects which encapsulate state and behavior.
ActorContext | Actor execution context
ActorFuture | Trait for types which are a placeholder of a value that may become available at some later point in time.
ActorStream | A stream of values, not all of which may have been produced yet.
ArbiterService | Trait defines arbiter's service.
AsyncContext | Asynchronous execution context
ContextFutureSpawner | Helper trait which can spawn future into actor's context
Handler | Message handler
Message | Message type
StreamHandler | Stream handler
Supervised | Actors with ability to restart after failure
SystemService | Trait defines system's service.
WrapFuture | Helper trait that allows conversion of normal future into `ActorFuture`
WrapStream | Helper trait that allows conversion of normal stream into `ActorStream`

## Type Definitions

ResponseActFuture | A specialized actor future for async message handler
ResponseFuture | A specialized future for async message handler

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