It has been awhile since I last did my project in C++. In my previous C++ project, I need to build a service level guarantee system which involves close to real time system and network monitoring. The platform is Unix based and we are using Corba for communications between different processes. There is a very useful C++ toolkit that I used in that project, which is ACE.
As quoted from the website, the ADAPTIVE Communication Environment (ACE) is a freely available, open-source object-oriented (OO) framework that implements many core patterns for concurrent communication software. ACE provides a rich set of reusable C++ wrapper facades and framework components that perform common communication software tasks across a range of OS platforms. The communication software tasks provided by ACE include event demultiplexing and event handler dispatching, signal handling, service initialization, interprocess communication, shared memory management, message routing, dynamic (re)configuration of distributed services, concurrent execution and synchronization.
ACE is targeted for developers of high-performance and real-time communication services and applications. It simplifies the development of OO network applications and services that utilize interprocess communication, event demultiplexing, explicit dynamic linking, and concurrency. In addition, ACE automates system configuration and reconfiguration by dynamically linking services into applications at run-time and executing these services in one or more processes or threads.
A diagram taken from the website which illustrates the key components of ACE.
The following higher-level middleware applications are bundled with the ACE release:
- The ACE ORB (TAO) — TAO is a real-time implementation of CORBA built using the framework components and patterns provided by ACE. TAO contains the network interface, OS, communication protocol, and CORBA middleware components and features. TAO is based on the standard OMG CORBA reference model, with the enhancements designed to overcome the shortcomings of conventional ORBs for high-performance and real-time applications. TAO, like ACE, is freely available, open source software.
- JAWS — JAWS is a high-performance, adaptive Web server built using the framework components and patterns provided by ACE. JAWS is structured as a framework of frameworks. The overall JAWS framework contains the following components and frameworks: an Event Dispatcher, Concurrency Strategy, I/O Strategy, Protocol Pipeline, Protocol Handlers, and Cached Virtual Filesystem. Each framework is structured as a set of collaborating objects implemented by combining and extending components in ACE. JAW is also freely available, open-source software.
For C++ programmers out there, you should have a look at ACE !!
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