package carton

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Memoization of map.

carton
- Carton
  - CONDITION
  - Dec
    
    Fp
    
    Uid
    
    Idx
    
    Device
    
    M
    
    IO
    
    Uid
    
    N
    
    Uid
    
    UID
    
    Ip
    
    IO
    
    Condition
    
    Future
    
    Mutex
    
    Scheduler
    
    Uid
    
    Verify
    
    IO
    
    Condition
    
    Future
    
    Mutex
    
    Scheduler
    
    Uid
    
    W
  - Enc
    
    Delta
    
    IO
    
    Condition
    
    Future
    
    Mutex
    
    Scheduler
    
    Uid
    
    Verbose
    
    N
    
    UID
    
    VERBOSE
  - FUNCTOR
  - FUTURE
  - IO
    
    Condition
    
    Future
    
    Mutex
  - MUTEX
  - Make
    
    T
  - SCHEDULER
  - UID
carton.thin
- Thin
  - Make
    
    IO
    
    Condition
    
    Future
    
    Mutex
    
    Scheduler
    
    Uid

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Memoization of `map`.

Instead to systematically call map to load memory-page, we memoize the call by a simple internal table of weak pointers.

type 'fd t

and slice = {

offset : int64;
length : int;
payload : Bigstringaf.t;

}

and ('fd, 's) map =
  'fd ->
  pos:int64 ->
  int ->
  (Bigstringaf.t, 's) Carton__.Sigs.io

val length : int64

val reset : 'fd t -> unit

val make : 'fd -> 'fd t

val load : 
  's Carton__.Sigs.scheduler ->
  map:('fd, 's) map ->
  'fd t ->
  int64 ->
  (slice option, 's) Carton__.Sigs.io