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Messenger Library by JDP Science - Toolkit for LabVIEW Download

A library for easy messaging between processes (including easy TCP).

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Version	2.0.8.153
Released	Nov 30, 2023
Publisher	JDP Science
License	BSD
LabVIEW Version	LabVIEW>=19.0
Operating System	Windows, Mac, and Linux
Project links	Homepage Documentation Repository Discussion

Description

Advanced messaging made simple

A library for passing messages between parallel processes. Uses "Addresses" to generalize the communication method, allowing the message sender to use any method as provided by the receiver. Supported communication methods include wrappings of simple queues, user events, and notifiers, as well a more complex channels such as a TCP server and client.

Comunication patterns supported include request-reply, where the reply is sent to a "reply address" attached to the request, and register-notify, where one process sends a registration message to another in order to subscribe to published messages.

A framework for dynamically-launched VI "actors" is also provided. An "Actor Manager" debug tool is installed under the Tools menu, as is an option to generate a new actor from a template.

Note: On Windows 10, it may be necessary to run VI Package Manager "as an administrator" in order to install the VI Package.

Release Notes

2.0.8.153 (Nov 30, 2023)

Issue 77: fix bug in TCP Messengers
Other minor TCP improvements
New Example that reworks Continuous Meassurement and Logging using Messenger Library

2.0.8.152 (Oct 25, 2023)
no release notes for this version

2.0.7.151 (Mar 22, 2022)

LabVIEW 2019, with Malleable VIs
Major Performance Improvements with Zero-Copy Event Notifications
Busy Dialog
Async User Entry Dialog Template (added to existing Actor Templates)

james-powell was a contributor to this release

1.14.7.138 (May 24, 2021)

#48: UDP Messengers: ability to send and receive messages via UDP, including Multicast group addresses.
Reconnecting TCP messengers now support service discovery using UDP, to aid easy networking.
#52 Remove dependancies on JKI State Machine package and OpenG LabVIEW ZIP Library
#45 Timeout Trigger (new periodic action method)

james-powell was a contributor to this release

1.13.2.129 (Nov 18, 2020)

Issue 44: Reconnecting TCP Messenger (See "Example Reconnecting TCP Client")
Bug fix: 47 Problem launching "Internal" actors in some cases
New Example of a Worker Pool pattren using Future Tokens

james-powell was a contributor to this release

1.12.1.125 (Oct 20, 2020)

*new ability to add an "Attachment" to an Outer Envelope (to carry info through a Request-Reply-Continuation pattern) Issue 5
*new QueueStackMessenger to allow immediatly executed "Actions" (Issue 42)
*Issue 38: Dialogs: allow definition of Run-Time Position>Monitor
*Issues 2,34,36,37,39,40,41

james-powell was a contributor to this release

1.11.1.119 (Feb 26, 2020)

*TCP Messengers with options for Ports (Issues 27 , 33)
-- Reworked TCPMessenger creation API
*TCP Keep alive (Issue 26) to avoid Half-open connections

james-powell was a contributor to this release

1.10.9.115 (Feb 18, 2019)

*"Startup Parameters" Variant added to "Launch Actor"
*Used to impliment preregistration messages in DEV template (Issue 13: to register for error in "Self: Initialize)
*Fix issue 14: Observer Registry not dropping dead addresses
*Better Error info in Query Timeouts
*Timeout Watchdog, to react to failure of something to happen
*Issue 9: modified way of launching Non-Reentrant Actors to reduce issue
*"Busy" Async Dialog (Beta; off palette)
*Fix issues with Cancellable Observer (Issue 18)
*Timeout countdown in 3-button dialogs

james-powell was a contributor to this release

1.9.6.99 (Jan 25, 2018)

*Add Async Connect to Remote TCP (see Test Client with Async connection example)
*LabVIEW 2013 or later
*Removed OpenG dependance (except for optional Zlib use in TCP messaging)
*Default Dialog style changes to Flat
*Added Example from YouTube Instructional Videos
*Improved documentation (extended help)
*"Scatter-Gather" multi-address versions of Query&Read
*Examples cleanup and doc

james-powell was a contributor to this release

1.8.3.82 (Oct 14, 2016)

* Dialog "style" option (with "flat" style added)
* Fixes to support running on NI Linux RT:
-- ZLIB compression in TCP communication defaults to OFF (not working on RT Linux)
-- Actor Manager partially working when run on RT (though without ability to open FP/BD)

james-powell was a contributor to this release

1.7.3.74 (May 19, 2016)

* Support "Correlation Identifier" Messaging Pattern using Reply Addresses
--> Fix error in Reply Address Observer Translator
--> "Find Reply Address in Array" function
* Extract Inner Message; Create and Register EventMessenger

james-powell was a contributor to this release

1.6.1.67 (May 19, 2016)

* "Create Actor from Template" Tools-menu option.
* Improved DEV Actor Template
* DEV template with periodic events; DEV with Private Messenger
* Actors can now be made Non-Reentrant (by renaming "Actor.vi" --> "ActorNR.vi")
* Show Front Panel can now also accept a DVR of subpanel
* Registration messages use Reply Address to hold Process-to-be-Notified
* Actor Manager performance improvement
* Update "Continuous Measurement" Sample Project to use Non-Reentrant actors

james-powell was a contributor to this release

1.4.0.56 (May 19, 2016)

*Rewrite of internals of Observer Registry for speed
*Examples cleanup and place under Example Finder
*NOTE! Observer Register Behavior change: now notify even if state unchanged.
*Partial use of NI VariantType library in place of OpenG (fast ot LabVIEW 2013, but slower in 2011). Use Conditional Disable Symbol "OpenG_VariantTools"="True" to retain use of OpenG.
*package NAME CHANGE to "Messenger Library" (internal directory names retained as "Messenging" for back compatability)

james-powell was a contributor to this release

Show all release notes (+12 more releases)

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Versions

2.0.8.153 (Nov 30, 2023)

2.0.8.152 (Oct 25, 2023)

2.0.7.151 (Mar 22, 2022)

1.14.7.138 (May 24, 2021)

1.13.2.129 (Nov 18, 2020)

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Actor to Actor communication (Messenger Library) Demo of a ‘Top Level’ actor creating and communicating with an ‘Instrument’ actor. Shows Request-Re… by James Powell, 2 years, 5 months ago, 0 , 0
Messenger Library for LabVIEW: Quick Introduction A quick introduction to “Messenger Library” for LabVIEW. Wiki: https://labviewwiki.org/wiki/Messeng… by James Powell, 2 years, 5 months ago, 0 , 0
Messenger Library Instructional Videos There are about 10 instructional videos on YouTube. The example project that is developed in these… by James Powell, 4 years, 3 months ago, 0 , 3
Post Messenger Library videos as resources We see there are many great tutorial videos for the Messenger Library: https://www.youtube.com/cha… by VIPM Community, 4 years, 3 months ago, 1 , 2

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