package hack_parallel

  1. Overview
  2. Docs
package hack_parallel
Legend:
Page
Library
Module
Module type
Parameter
Class
Class type
Source

Module LockSource

* Copyright (c) 2015, Facebook, Inc. * All rights reserved. * * This source code is licensed under the BSD-style license found in the * LICENSE file in the root directory of this source tree. An additional grant * of patent rights can be found in the PATENTS file in the same directory. *

Sourceval lock_fds : (Unix.file_descr * Unix.stats) SMap.t ref

* Basic lock operations. * * We use these for two reasons: * 1. making sure we are only running one instance of hh_server per person on a given dev box * 2. giving a way to hh_client to check if a server is running.

Sourceval register_lock : SMap.key -> Unix.file_descr
Sourceval _operations : SMap.key -> Unix.lock_command -> bool

* Grab or check if a file lock is available. * * Returns true if the lock is/was available, false otherwise.

Sourceval grab : SMap.key -> bool

* Grabs the file lock and returns true if it the lock was grabbed

Sourceval release : SMap.key -> bool

* Releases a file lock.

Sourceval blocking_grab_then_release : SMap.key -> unit
Sourceval fd_of : SMap.key -> int

* Gets the server instance-unique integral fd for a given lock file.

Sourceval check : SMap.key -> bool

* Check if the file lock is available without grabbing it. * Returns true if the lock is free.

OCaml

Innovation. Community. Security.

GitHub Discord Twitter Peertube RSS
About
Changelog Releases Industrial Users Academic Users Why OCaml
Ecosystem
Packages Community Events OCaml Planet Jobs
Resources
Install OCaml Get Started Platform Tools Language Manual Standard Library API Books Exercises Papers OCaml Playground Logo
Policies
Carbon Footprint Governance Privacy Code of Conduct