Concurrency

Boost Channel is a C++ template framework for distributed message passing and event dispatching. Its major components (message IDs, routing algorithms...) are highly configurable as template parameters. As a namespace shared by peer threads, channels support publish/subscribe scope control,... Platforms: *nix

Cloudatag manages photos and videos using tag cloud, the visual representation of the tags makes it easy for you to manage and organize all photos & videos. You can instantly find or filter out the specific photo on cloud storage or your computer.Cloudatag launches a simple, faster and more... Platforms: Windows

A relational database offering many ANSI SQL-92 features that runs on MacOsx, Linux, Windows, and a variety of Unix platforms. Firebird offers excellent concurrency, high performance, and powerful language support for stored procedures and triggers. It has been used in production systems, under a... Platforms: Mac

TPoX, which is actually short for Transaction Processing over XML was built as an application-level XML database benchmark. TPoX is based on a financial application scenario. It is used to evaluate the performance of XML database systems, focusing on XQuery, SQL/XML, XML storage, XML indexing,... Platforms: Windows

VCC is a mechanical verifier for concurrent C programs. VCC takes a C program, annotated with function specifications, data invariants, loop invariants, and ghost code, and tries to prove these annotations correct. If it succeeds, VCC promises that your program actually meets its specifications.... Platforms: Windows

Scala is a general purpose programming language designed to express common programming patterns in a concise, elegant, and type-safe way. It smoothly integrates features of object-oriented and functional languages, enabling Java and other programmers to be more productive. Code sizes are... Platforms: Windows

Royalty free fully featured SQL database engine with nearly 1 million installations worldwide. Use as embedded, like MS access, or as large clustered, like Oracle/DB2, distributed database. ScimoreDB embedded, server or distributed databases has been optimized for MS Windows and .NET to deliver... Platforms: Windows

An Eclipse-based IDE for Erlang http://www.erlang.org, a concurrency-oriented language developed by Ericsson. Please install/update from http://erlide.org/update Platforms: Windows, Mac, Linux

HSQLDB is a relational database engine written in Java, with a JDBC driver, conforming to ANSI SQL:2008. A small, fast, multithreaded engine and server with memory and disk tables, LOBs, transaction isolation, multiversion concurrency and ACID. Platforms: Windows, Mac, Linux

Java Ultra-Lite Persistence (JULP): RDBMS independant Object-Relational library. Inheritance, many classes per table, many tables per class, optimistic concurrency, simple mappings, etc. Less then 230KB. Swing GUI to generate classes and mappings. Platforms: Windows, Mac, Linux

A virtual world engine writen by C# Provide network,serialization,thread management,work flow,cluster management,RPC etc.It's designed for concurrency. For performance, it doesn't use lock to resolve conflicts, otherwise it use queues. Platforms: Windows, Mac, Linux

The nesC language was designed to support the TinyOS project. nesC provides several advantages over C: a component model based on bi-directional interfaces, whole-program compilation for performance and a simple concurrency model for embedded systems. Platforms: Windows, Mac, BSD, Linux

PrimeBase XT (PBXT) is a pluggable, transactional storage engine for MySQL. It uses a unique 'write-once', log-based update strategy and MVCC (multi-version concurrency control) to provide optimal performance over a wide range of tasks. Platforms: Mac, Linux

YoruFukurou (NightOwl) is a powerful native Twitter client for Mac OS X, designed for Twitter addicts. Developer: @aki_null User Interface Designer: @hydroxygenic Features: - Manage multiple Twitter accounts - Create tabs from rules (user IDs, keywords and regular expressions) - Create... Platforms: Mac

This application shows the current CPU usage in a floating rectangular meter, or in your Dock icon, or both. This information is useful for determining how hard your computer is being worked. Your computer may behave slowly or run hot when the processor is being worked hard. The text is... Platforms: Mac

PyHeartbeat detects inactive computers by sending and receveing "heartbeats" as UDP packets on the network, and keeping track of how much time passed since each known computer sent its last heartbeat. The concurrency in the server is implemented using threads first, and then again using the... Platforms: Windows, Mac, *nix, Python, BSD Solaris

The Java Message Service (JMS) is a messaging system that allows application components based on the J2EE platforms to create, save, send, receive, and read messages.FFMQ internally follows the JMS 1.1 object model. This is a main difference with most other implementations that use their own... Platforms: Windows, Mac, *nix, Java, BSD Solaris

The Java Application Monitor (JAMon) is a free, simple, high performance, thread safe, Java API that allows developers to easily monitor production applications. JAMon can be used to determine application performance bottlenecks, user/application interactions, track application scalability, and... Platforms: Windows, Mac, *nix, Java, BSD Solaris

MADAL allows one to quickly generate ajax enabled web-pages.MADAL is an Ajax based database access layer for MySQL written in PHP and javascript. It generates PHP and javascript/jQuery source code that is well documented, so you can use your IDE's auto-completion against database tables and... Platforms: PHP

One-off Ruby projects. Formerly qrp (queueing reverse proxy). qrp is a Mongrel-based reverse proxy designed to feed concurrency-disabled Mongrels. qrp is deprecated. Platforms: Ruby