package async

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async
- Async
  - Command
  - Deferred
    
    Or_error
    
    Expect_test_config
    
    IO
  - Expect_test_config
    
    IO
  - Expect_test_config_or_error
    
    IO
  - Log
  - Quickcheck
async.async_command
- Async_command
  - For_testing
  - Staged
async.async_quickcheck
- Async_quickcheck
  - Configure
    
    Config
async.async_rpc
- Async_rpc
  - Rpc
    
    Connection
    
    For_debugging
    
    Low_latency_transport
    
    Config
    
    Reader
    
    With_internal_reader
    
    With_internal_reader
    
    Writer
    
    Transport
    
    Reader
    
    Tcp
    
    Writer
async.lock_file_async
- Lock_file_async
  - Flock
  - Nfs
  - Symlink
async.log_extended
- Log_extended
  - Command
  - Console
    
    Blocking
  - Syslog
    
    Blocking
async.persistent_connection
- Persistent_connection
  - Make
    
    Conn
    
    Event
  - Make'
    
    Conn
    
    Conn_err
    
    Event
  - Rpc
    
    Event
  - S
    
    Event
  - S'
    
    Event
  - S_rpc
    
    Event
  - Versioned_rpc
    
    Event
async.unpack_sequence
- Unpack_sequence

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type t

a connection type

val close : t -> unit Async_kernel.Deferred.t

close t closes the connection. The returned deferred becomes determined once any resources needed to maintain the connection have been released.

val is_closed : t -> bool

is_closed t returns true if close has ever been called (even if the returned deferred has not yet been fulfilled).

Note that some modules implementing Closable may call close internally upon noticing that the connection was closed by the other side. The interface of such a module ought to say that this is the case.

val close_finished : t -> unit Async_kernel.Deferred.t

close_finished t becomes determined at the same time as the result of the first call to close. close_finished differs from close in that it does not have the side effect of initiating a close.