package carton

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First-pass of a PACK file.
Parameters
Signature

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

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Parameter
Class
Class type

First-pass of a PACK file.

From a stream, it is possible to infer information needed then to apply a second analyse to extract all objects of a the given PACK file. From Git, this pass appears when the client clone/fetch and the program counts how many objects the PACK file has.

$ git clone ...
remote: Enumerating objects: 105, done.
remote: Counting objects: 100% (105/105), done.
remote: Compressing objects: 100% (81/81), done.
remote: Total 305 (delta 41), reused 75 (delta 23), pack-reused 200
Receiving objects: 100% (305/305), 104.46 KiB | 0 bytes/s, done. # first pass

Parameters

module Uid : sig ... end

Signature

type optint = Optint.t

type kind =

| Base of [ `A | `B | `C | `D ]
| Ofs of {
1. sub : int;
2. source : weight;
3. target : weight;
}
| Ref of {
1. ptr : Uid.t;
2. source : weight;
3. target : weight;
}
(*
Type of PACK objects.
*)

type entry = {

offset : int64;
(*
Absolute offset into the given PACK file.
*)
kind : kind;
(*
Kind of the object.
*)
size : weight;
(*
Length of the inflated object.
*)
consumed : int;
(*
Length of the deflated object (as it is into the PACK file).
*)
crc : optint;
(*
Check-sum of the entry (header plus the deflated object).
*)

}

Type of a PACK entry.

val check_header : 
  's Carton__.Sigs.scheduler ->
  ('fd, 's) read ->
  'fd ->
  (int * string * int, 's) Carton__.Sigs.io

type decoder

The type for decoders.

type src = [

| `Channel of in_channel
| `String of string
| `Manual

]

The type for input sources. With a `Manual source the client must provide input with src.

type decode = [

| `Await of decoder
| `Peek of decoder
| `Entry of entry * decoder
| `End of Uid.t
| `Malformed of string

]

type header =

| Consumed of Bigstringaf.t
| None

val decoder : o:Bigstringaf.t -> allocate:(int -> De.window) -> src -> decoder

val decode : decoder -> decode

val number : decoder -> int

val version : decoder -> int

val count : decoder -> int

val ctx : decoder -> Uid.ctx

val src_rem : decoder -> int

val src : decoder -> Bigstringaf.t -> int -> int -> decoder