Module `Lmdb.Mdb`Source

Raw bindings for LMDB.

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

Sourceval version : string * int * int * int

Exceptions

Sourceexception Exists

Sourceexception Map_full

Sourceexception Error of int

Sourceval strerror : int -> string

Flags

Sourcemodule type Flags = sig ... end

Operations on sets of flags.

Sourcemodule Flags : Flags

Environment

Sourcetype env

Sourcemodule EnvFlags : sig ... end

Sourcemodule CopyFlags : sig ... end

Sourceval env_create : unit -> env

Sourceval env_open : env -> string -> EnvFlags.t -> int -> unit

Sourceval env_close : env -> unit

Sourceval env_set_mapsize : env -> int -> unit

Sourceval env_set_maxdbs : env -> int -> unit

Sourceval env_set_maxreaders : env -> int -> unit

Sourceval env_copy : env -> string -> CopyFlags.t -> unit

Sourceval env_copyfd : env -> Unix.file_descr -> CopyFlags.t -> unit

Sourceval env_set_flags : env -> EnvFlags.t -> bool -> unit

Sourceval env_get_flags : env -> EnvFlags.t

Sourceval env_get_path : env -> string

Sourceval env_get_fd : env -> Unix.file_descr

Sourceval env_sync : env -> bool -> unit

Sourceval env_get_maxreaders : env -> int

Sourceval env_get_maxkeysize : env -> int

Sourceval reader_list : env -> (string -> int) -> int

Sourceval reader_check : env -> int

Sourcetype stat = {

psize : int;
depth : int;
branch_pages : int;
leaf_pages : int;
overflow_pages : int;
entries : int;

}

Sourceval env_stat : env -> stat

Sourcetype envinfo = {

map_addr : int;
(*
To recover the actual address this integer needs to be shifted to the left by one bit. A 31 bit integer may overflow.
*)
map_size : int;
last_pgno : int;
last_txnid : int;
max_readers : int;
num_readers : int;

}

Sourceval env_info : env -> envinfo

Transaction

Sourcetype txn

Sourceval txn_env : txn -> env

Sourceval txn_begin : env -> txn option -> EnvFlags.t -> txn

Sourceval txn_commit : txn -> unit

Sourceval txn_abort : txn -> unit

Dbi

Sourcetype dbi

Sourceval invalid_dbi : dbi

Sourcemodule DbiFlags : sig ... end

Sourcemodule PutFlags : sig ... end

Sourcemodule Block_option : sig ... end

Sourceval dbi_open : txn -> string option -> DbiFlags.t -> dbi

Sourceval dbi_close : env -> dbi -> unit

Sourceval dbi_flags : txn -> dbi -> DbiFlags.t

Sourceval dbi_stat : txn -> dbi -> stat

Sourceval drop : txn -> dbi -> bool -> unit

Sourceval get : txn -> dbi -> bigstring -> bigstring

Sourceval put : txn -> dbi -> bigstring -> bigstring -> PutFlags.t -> unit

Sourceval put_reserve : txn -> dbi -> bigstring -> int -> PutFlags.t -> bigstring

Sourceval del : txn -> dbi -> bigstring -> bigstring Block_option.t -> unit

Sourceval cmp : txn -> dbi -> bigstring -> bigstring -> int

Sourceval dcmp : txn -> dbi -> bigstring -> bigstring -> int

Cursor

Sourcetype cursor

Sourcemodule Ops : sig ... end

Sourceval cursor_open : txn -> dbi -> cursor

Sourceval cursor_close : cursor -> unit

Sourceval cursor_put : cursor -> bigstring -> bigstring -> PutFlags.t -> unit

Sourceval cursor_put_reserve : cursor -> bigstring -> int -> PutFlags.t -> bigstring

Sourceval cursor_del : cursor -> PutFlags.t -> unit

Source

val cursor_get : 
  cursor ->
  bigstring Block_option.t ->
  bigstring Block_option.t ->
  Ops.t ->
  bigstring * bigstring

Sourceval cursor_count : cursor -> int

Internal

Sourceval sizeof_int : int

Sourceval sizeof_size_t : int

package lmdb

Module Lmdb.MdbSource