package bin_prot

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Buffers
Errors and exceptions
Bigarrays
Miscellaneous
NOTE: unsafe functions!!!

package bin_prot

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Common definitions used by binary protocol converters

Buffers

type pos = int

Position within buffers

type pos_ref = pos ref

Reference to a position within buffers

type buf =
  (char, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t

Buffers

val create_buf : int -> buf

create_buf n creates a buffer of size n.

val buf_len : buf -> int

buf_len buf returns the length of buf.

val assert_pos : pos -> unit

assert_pos pos

raises Invalid_argument
if position pos is negative.

val check_pos : buf -> pos -> unit

check_pos buf pos

raises Buffer_short
if position pos exceeds the length of buffer buf.

val check_next : buf -> pos -> unit

check_next buf pos

raises Buffer_short
if the next position after pos exceeds the length of buffer buf.

val safe_get_pos : buf -> pos_ref -> pos

safe_get_pos buf pos_ref

returns
the position referenced by pos_ref within buffer buf.
@raise Buffer_short
if the position exceeds the length of the buffer.

val blit_string_buf : 
  ?src_pos:int ->
  string ->
  ?dst_pos:int ->
  buf ->
  len:int ->
  unit

blit_string_buf ?src_pos src ?dst_pos dst ~len blits len bytes of the source string src starting at position src_pos to buffer dst starting at position dst_pos.

raises Invalid_argument
if the designated ranges are invalid.

val blit_bytes_buf : 
  ?src_pos:int ->
  bytes ->
  ?dst_pos:int ->
  buf ->
  len:int ->
  unit

blit_bytes_buf ?src_pos src ?dst_pos dst ~len blits len bytes of the source byte sequence src starting at position src_pos to buffer dst starting at position dst_pos.

raises Invalid_argument
if the designated ranges are invalid.

val blit_buf_string : 
  ?src_pos:int ->
  buf ->
  ?dst_pos:int ->
  bytes ->
  len:int ->
  unit

blit_buf_string ?src_pos src ?dst_pos dst ~len blits len bytes of the source buffer src starting at position src_pos to string dst starting at position dst_pos.

raises Invalid_argument
if the designated ranges are invalid.

val blit_buf_bytes : 
  ?src_pos:int ->
  buf ->
  ?dst_pos:int ->
  bytes ->
  len:int ->
  unit

blit_buf_bytes ?src_pos src ?dst_pos dst ~len blits len bytes of the source buffer src starting at position src_pos to byte sequence dst starting at position dst_pos.

raises Invalid_argument
if the designated ranges are invalid.

val blit_buf : 
  ?src_pos:int ->
  src:buf ->
  ?dst_pos:int ->
  dst:buf ->
  int ->
  unit

blit_buf ?src_pos ~src ?dst_pos ~dst len blits len bytes of the source buffer src starting at position src_pos to destination buffer dst starting at position dst_pos.

raises Invalid_argument
if the designated ranges are invalid.

Errors and exceptions

exception Buffer_short

Buffer too short for read/write operation

exception No_variant_match

Used internally for backtracking

module ReadError : sig ... end

exception Read_error of ReadError.t * pos

ReadError (err, err_pos)

exception Poly_rec_write of string

PolyRecWrite type gets raised when the user attempts to write or estimate the size of a value of a type that is bound through a polymorphic record field in type definition type.

exception Empty_type of string

EmptyType gets raised when the user attempts to write or estimate the size of a value of an empty type, which would not make sense.

val raise_read_error : ReadError.t -> pos -> 'a

raise_read_error err pos

val raise_variant_wrong_type : string -> pos -> 'a

raise_variant_wrong_type name pos

val raise_concurrent_modification : string -> 'a

raise_concurrent_modification loc

raises Failure
if a binary writer detects a concurrent change to the underlying data structure.

val array_bound_error : unit -> 'a

array_bound_error ()

Bigarrays

type vec32 =
  (float, Bigarray.float32_elt, Bigarray.fortran_layout) Bigarray.Array1.t

type vec64 =
  (float, Bigarray.float64_elt, Bigarray.fortran_layout) Bigarray.Array1.t

type vec = vec64

type mat32 =
  (float, Bigarray.float32_elt, Bigarray.fortran_layout) Bigarray.Array2.t

type mat64 =
  (float, Bigarray.float64_elt, Bigarray.fortran_layout) Bigarray.Array2.t

type mat = mat64

Miscellaneous

val copy_htbl_list : ('a, 'b) Hashtbl.t -> ('a * 'b) list -> ('a, 'b) Hashtbl.t

copy_htbl_list htbl lst adds all (key, value) pairs in lst to hash table htbl.

NOTE: unsafe functions!!!

val unsafe_blit_buf : 
  src_pos:int ->
  src:buf ->
  dst_pos:int ->
  dst:buf ->
  len:int ->
  unit

val unsafe_blit_string_buf : 
  src_pos:int ->
  string ->
  dst_pos:int ->
  buf ->
  len:int ->
  unit

val unsafe_blit_bytes_buf : 
  src_pos:int ->
  bytes ->
  dst_pos:int ->
  buf ->
  len:int ->
  unit

val unsafe_blit_buf_string : 
  src_pos:int ->
  buf ->
  dst_pos:int ->
  bytes ->
  len:int ->
  unit

val unsafe_blit_buf_bytes : 
  src_pos:int ->
  buf ->
  dst_pos:int ->
  bytes ->
  len:int ->
  unit

val unsafe_blit_float_array_buf : 
  src_pos:int ->
  float array ->
  dst_pos:int ->
  buf ->
  len:int ->
  unit

val unsafe_blit_buf_float_array : 
  src_pos:int ->
  buf ->
  dst_pos:int ->
  float array ->
  len:int ->
  unit

val unsafe_blit_floatarray_buf : 
  src_pos:int ->
  floatarray ->
  dst_pos:int ->
  buf ->
  len:int ->
  unit

val unsafe_blit_buf_floatarray : 
  src_pos:int ->
  buf ->
  dst_pos:int ->
  floatarray ->
  len:int ->
  unit

val (+) : int -> int -> int