interprocess: Shared memory and control structures for IPC

[ bsd3, library, system ] [ Propose Tags ]

Provides portable shared memory allocator and some synchronization primitives. Can be used for interprocess communication. Refer to README.md for further information.

[Skip to Readme]

Modules

[Index]

Control
- Concurrent
  - Process
    - Control.Concurrent.Process.QSem
    - Control.Concurrent.Process.StoredMVar
Foreign
- Foreign.SharedObjectName
  - Foreign.SharedObjectName.Internal
- Foreign.SharedPtr
  - Foreign.SharedPtr.C

Flags

Automatic Flags

Name	Description	Default
examples	Build example-test programs	Disabled
dev	Development build with debugging and with no optimization	Disabled

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info

Downloads

interprocess-0.2.0.0.tar.gz [browse] (Cabal source package)
Package description (as included in the package)

Maintainer's Corner

Package maintainers

achirkin

For package maintainers and hackage trustees

edit package information

Candidates

No Candidates

Versions [RSS]	0.1.0.0, 0.2.0.0, 0.2.0.1, 0.2.1.0
Dependencies	base (>=4.8 && <5), interprocess, typed-process (>=0.2) [details]
License	BSD-3-Clause
Copyright	(c) 2018 Artem Chirkin
Author	Artem Chirkin
Maintainer	chirkin@arch.ethz.ch
Category	system
Home page	https://github.com/achirkin/interprocess
Uploaded	by achirkin at 2018-07-08T15:10:19Z
Distributions	NixOS:0.2.1.0
Reverse Dependencies	1 direct, 0 indirect [details]
Executables	wait-mvar, wait-qsem, concurrent-malloc
Downloads	1719 total (18 in the last 30 days)
Rating	(no votes yet) [estimated by Bayesian average]
Your Rating	λ λ λ
Status	Docs available [build log] Last success reported on 2018-07-08 [all 1 reports]

Readme for interprocess-0.2.0.0

[back to package description]

interprocess

WIP: platform-independent interprocess communication.

The core feature is shared memory allocator implemented using POSIX mmap and Windows CreateFileMapping. You can create as many allocators as you want (as your RAM can afford) and concurrently malloc and free memory in different processes using them.

Features and TODO:

Foreign.SharedPtr -- malloc, realloc and free in the shared memory region that can be accessed by multiple processes.
Semaphores
Mutexes (not sure if need this)
Mutable variables via Storable instance plus garbage collection.
Proper error messages
Debug, verbose mode

The idea of the library is to address GHC stop-the-world GC problem:

Create several instances of your program in different isolated processes using e.g. typed-process library.
Establish shared memory and semaphore usage via this program
Garbage collection events in one process do not affect another one at all. Profit!