package hack_parallel

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in-package search v0.2.0

Parallel and shared memory library

Install

Dune Dependency

github.com Readme Edit opam file Versions (3)

Authors

F

Facebook. Modifications by Rijnard van Tonder

Maintainers

R

Rijnard van Tonder <rvantonder@gmail.com>

Sources

1.0.1.tar.gz

md5=ba7c72bc207e326b72e294fc76f6ad2c

sha512=5020d47f97bea2f88e2a40411894d03232a7f2282606926c93c7d4c96d72e94a966be852897a9b16f7e0893ba376512045abb9d93020a7c03c3def4f3d918f8e

doc/hack_parallel.utils/Lock/index.html

Module `Lock`Source

* 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.