package async_extended

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Parameters
Signature

async_extended
- Async_extended
  - Any_error
    
    Applicative_infix
  - Async_cbreak
  - Async_color_print
  - Async_heap
  - Async_mutex
  - Coalesced_throttle
  - Cpu_load
    
    Stats
  - Csv
  - Deferred_cache
  - Deferred_list
  - Delimited
  - Embedded_script
  - Enforcer
  - Extended_log
    
    Console
    
    Blocking
    
    Syslog
    
    Blocking
  - Fd_leak_check
  - File_updates
    
    Update
  - Find
  - Generator
  - Inotify
  - Interactive_edit
  - Keyed_sequencer
  - Ltl
    
    Make
    
    Assignment
    
    Expression
    
    Applicative_infix
    
    Field
    
    O
    
    State
    
    Variable
    
    State
  - Mailbox
    
    Filter
  - Pipe_iterator
  - Pipe_zipper
  - Priority_queue
  - Process
    
    Output
  - Reader_ext
  - Resource
    
    Let_syntax
    
    Let_syntax
    
    Open_on_rhs
    
    Memo
    
    Key
    
    Hash_queue
    
    Hash_set
    
    Provide_bin_io
    
    X
    
    Provide_of_sexp
    
    X
    
    Table
    
    Provide_bin_io
    
    Key
    
    Provide_of_sexp
    
    Key
    
    Monad_infix
    
    Raw
    
    Handle
  - Rpc_proxy
    
    Environment
  - Run_in_fork
  - Semaphore
  - Shell
  - Signal
  - Simple_tcp_proxy
  - Sound
  - Std
    
    Log
    
    Reader
  - Synccast
  - Udp
  - Validate_command
    
    S
  - Watcher

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Class type

Parameters

module Key : Core.Hashable

Signature

val memo : (Key.t -> ('a, 'e) t) -> Key.t -> ('a, 'e) t

memo f is similar to Core.Memo.general (fun k -> shared (f k)). The important difference is that the memo entry is only kept while the resource is acquired. In particular, once all handles of a particular key get released the memo entry gets forgotten and f gets applied again on next acquisition. If acquire fails or function raises for a particular key, the result is not cached.