exception Error of string * string
val compress :
  ?level:int ->
  ?header:bool -> (string -> int) -> (string -> int -> unit) -> unit
val uncompress :
  ?header:bool -> (string -> int) -> (string -> int -> unit) -> unit
type stream = Zlib.stream
type flush_command =
  Zlib.flush_command =
    Z_NO_FLUSH
  | Z_SYNC_FLUSH
  | Z_FULL_FLUSH
  | Z_FINISH
external deflate_init : int -> bool -> stream = "camlzip_deflateInit"
external deflate :
  stream ->
  string ->
  int -> int -> string -> int -> int -> flush_command -> bool * int * int
  = "camlzip_deflate_bytecode" "camlzip_deflate"
external deflate_end : stream -> unit = "camlzip_deflateEnd"
external inflate_init : bool -> stream = "camlzip_inflateInit"
external inflate :
  stream ->
  string ->
  int -> int -> string -> int -> int -> flush_command -> bool * int * int
  = "camlzip_inflate_bytecode" "camlzip_inflate"
external inflate_end : stream -> unit = "camlzip_inflateEnd"
external update_crc : int32 -> string -> int -> int -> int32
  = "camlzip_update_crc32"