package leveldb

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package leveldb

leveldb
- LevelDB
  - Batch
  - Iterator
  - Read_access
  - Snapshot

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Batch operations applied atomically.

val make : unit -> writebatch

Initialize a batch operation.

val put : writebatch -> string -> string -> unit

put writebatch key value adds or replaces a binding.

val put_substring : 
  writebatch ->
  string ->
  int ->
  int ->
  string ->
  int ->
  int ->
  unit

put_substring writebatch key off1 len1 value off2 len2 adds or * replaces a binding for the substrings of key and value delimited by * the given offsets and lengths. *

raises Error
if the offset, length pairs do not represent valid * substrings

val delete : writebatch -> string -> unit

delete writebatch key removes the binding for key, if present..

val delete_substring : writebatch -> string -> int -> int -> unit

delete writebatch s off len removes (if present) the binding for the * substring of s delimited by the offset off and the length len.

val write : db -> ?sync:bool -> writebatch -> unit

Apply the batch operation atomically. *

parameter sync
whether to write synchronously (default: false)