Using Hilbert curves and DHTs to implement location queries
To build hDHT you will need a compiler that supports C++ 14. A recent version of gcc or clang is preferred. In particular, gcc 5.3 (as shipped in Ubuntu 16.04 LTS) is known not to work.
hDHT depends on libuv (libuv.pc) for asynchronous IO. Optionally, if the systemd libraries (libsystemd.pc) are present, hDHT will be compiled with support for systemd journal logging.
To build, do:
mkdir build/
cd build/
cmake .. -DCMAKE_BUILD_TYPE=Release
make -j
sudo make install
This will install /usr/bin/hdhtd, the server, and /usr/bin/hdhtd-cli, the command line client.
hdhtd -l 0.0.0.0:<PORT> [-p <PEER>]*
When running the server, you should pass the -l option to choose the address and port to listen on. By default, the server listens on port 7777 on all interfaces. You can pass the -l multiple times to listen on multiple addresses.
The -p option provides the initial set of peers to the server. If you don't give any, the server will start a new empty DHT, and assume control of the whole range.
Use the -d option to enable debugging.
hdht-cli -s <SERVER> -l 0.0.0.0:<PORT>
To run the client you must pass the -s option to choose the server to initially connect to. The client will contact this server to find out who to register to, based on the client's location.