Shared Library for systemd Notification Interface

This repository provides a shared library that can be used to communicate with systemd to notify it of the lifecycle of a kdb process or application.

For more information on the systemd notification mechanism, see the systemd documentation.

The related kdb library that uses this shared object can be found here - https://github.com/jasraj/kdb-systemd.

Pre-requisites

To compile this project, libsystemd.so is required to be installed on the build server:

• Ubuntu: apt install libsystem-dev
• CentOS: yum install systemd-devel

If you require the 32-bit version of the shared library (to use with 32-bit kdb+), it can be cross-compiled if you have the 32-bit build tools available:

• Ubuntu: apt install libsystemd-dev:i386 gcc-multilib g++-multilib
• CentOS: yum install glibc-devel.i686 libgcc.i686 libstdc++-devel.i686 ncurses-devel.i686 systemd-devel.i686

Ubuntu may also need to explicitly enable 32-bit library installation:

dpkg --add-architecture i386
apt-get update

Compilation

To compile, use cmake:

# Create build in a local 'build' folder within the repo
mkdir build
cd build
cmake ..
cmake --build .

To cross-compile the 32-bit version of the shared library:

mkdir build-32
cd build-32
cmake .. -DCMAKE_CXX_FLAGS=-m32
cmake --build .

Installation

To install the shared library on the current server:

sudo cmake --install .

To build a TAR GZ, RPM or DEB containing the shared library, use cpack:

# Build all package types
cpack .

# Only build one of the package types
cpack -G TGZ .
cpack -G RPM .
cpack -G DEB .

Note that the packages generated do not differentiate between 32-bit and 64-bit builds; they should be manually renamed to account for this