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Module `Stdune.Fcntl`Source

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Sourcetype lock_type =

| Read
| Write

Sourcetype whence =

| Set
| Cur
| End

val lock : 
  ?whence:whence ->
  ?start:int ->
  ?len:int ->
  Unix.file_descr ->
  lock_type ->
  unit

val lock_try : 
  ?whence:whence ->
  ?start:int ->
  ?len:int ->
  Unix.file_descr ->
  lock_type ->
  bool

val lock_get : 
  ?whence:whence ->
  ?start:int ->
  ?len:int ->
  Unix.file_descr ->
  lock_type ->
  (lock_type * int) option

val unlock : 
  ?whence:whence ->
  ?start:int ->
  ?len:int ->
  Unix.file_descr ->
  unit