'An expert is a man who has made all the mistakes which can be made, in a narrow field'
Lately we started to discuss JogAmp‘s Project Management a little bit and touched things like efficient Java JNI binding to native foreign functions.
Allow me to elaborate on this issue a little bit (forum copy), perhaps even go this far to debate down on the metal C++ vs virtual Java performance.
Keep in mind, I am an old dog and always focus on performance and such thing even on the Java side 😉 Continue reading “Some late C++/Java Project Experience”
Earlier I started elaborating on Direct-BT C++ implementation details, covering communication channels and data structures suitable for concurrency.
This part shall cover Jaulib’s jau::function<R(A…)>, used to manage callback lists e.g. in BTManager or simply utilizing them to delegate functionality like in jau::service_runner. Continue reading “Identifiable C++ Function Pointer of any kind in Direct-BT (Part 2)”
This is the first article covering Direct-BT‘s implementation details including jaulib.
See Direct-BT, Bluetooth Server and Client Programming in C++ and Java (Part 1) for a little introduction to Direct-BT.
As described, we were required to utilize the host Bluetooth implementation in the GNU/Linux kernel, i.e. BlueZ/Kernel directly without D-Bus to achieve best performance and access the native HCI, L2CAP/GATT and SMP communication channels directly. Continue reading “Direct-BT C++ Implementation Details (Part 1)”
This is the first article covering Direct-BT using version 2.7.1 and may give you a little introduction into this project.
See Direct-BT C++ Implementation Details (Part 1) for some insight view.
Direct-BT provides direct Bluetooth LE and BREDR programming, offering robust high-performance support for embedded & desktop with zero overhead via C++ and Java.
It supports a fully event driven workflow from adapter management, device discovery to GATT programming, using its platform agnostic HCI, L2CAP, SMP and GATT protocol implementation.
Multiple Bluetooth adapter are handled, as well as multiple concurrent connections per adapter.
Peripheral server device programming is supported as well as the central client, which is also used for Java and C++ self unit testing across two or more Bluetooth adapter. Continue reading “Direct-BT, Bluetooth Server and Client Programming in C++ and Java (Part 1)”
I happily joined Xerxes’s call to enhance the
Bluetooth experience on embedded GNU/Linux for Zafena.
This ended up in a new Bluetooth LE (almost done) and BREDR (in progress)
C++-11 implementation named Direct-BT.
It exposes a modern Java binding to the refactored original TinyB. Continue reading “What is Direct-BT? Where is JogAmp 2.4.0?”